Jacobi colliery
| Jacobi colliery | |||
|---|---|---|---|
| General information about the mine | |||
| Funding / year | Max. 2,447,089 t | ||
| Information about the mining company | |||
| Operating company | Ruhrkohle AG | ||
| Employees | up to 5328 | ||
| Start of operation | 1913 | ||
| End of operation | 1974 | ||
| Successor use | Sports facilities | ||
| Funded raw materials | |||
| Degradation of | Hard coal | ||
| Geographical location | |||
| Coordinates | 51 ° 31 '22 " N , 6 ° 53' 26" E | ||
|
|||
| Location | Osterfeld-Klosterhardt | ||
| local community | Oberhausen | ||
| Independent city ( NUTS3 ) | Oberhausen | ||
| country | State of North Rhine-Westphalia | ||
| Country | Germany | ||
| District | Ruhr area | ||
The Jacobi colliery was a hard coal mine in Oberhausen - Osterfeld . The mine is named after the Kommerzienrat Hugo Jacobi . The mine has a 65-year history and was in operation for over 60 years.
history
planning
At the beginning of the 20th century, Gutehoffnungshütte planned the extensive development of the existing Oberhausen and "Neu-Oberhausen" mine fields . The construction of an independent shaft system was planned for the "Neu-Oberhausen" field. For this reason, in 1905 in the Klosterhardt district of Osterfeld, a plot of 220 hectares was acquired by the Count von Westerholt . The Jacobi Schächte model system was to be built on the acquired property . The plant was planned for a daily extraction of 5000 tons of hard coal . Later expansions should be taken into account when planning. This was necessary in order not to destroy the overall architectural appearance in a later expansion. In addition, the Jacobi colony was to be built on company-owned premises . The planning and execution of this construction project was entrusted to the newly founded union of the Oberhausen hard coal mine. This company was founded in 1904 and was a subsidiary of Gutehoffnungshütte. The conception of the development was awarded to the architect Carl Weigle in Stuttgart after an architecture competition. He planned the double -shaft system with operating buildings arranged like a castle and conveyor frames aligned with them . However, due to the labor shortage and material shortage during the First World War, the building complex could not be fully constructed, so the shaft hall, the hoisting machine house for shaft 1, the headframe and the workshop were initially not built. However, most of the buildings were built until 1920. The building complex was later given the nickname " Versailles of the Ruhr Area ". The factory settlement was also aligned with the main portal of the colliery.
The construction of the mine
In 1910, the Vondern colliery began exploring the Neu-Oberhausen field. To this end, a section from the Vondern colliery was first driven . In the same year, the preparations for the sinking of the shafts were made on the future colliery site on today's road in Fuhlenbrock . In 1911, the sinking of shaft 2 began. The shaft had a clear diameter of six meters and was created using the freezing process . In the same year, the works railway between the Jacobi and Osterfeld mines went into operation. The tracks were 3000 meters long and the difference in height between the two mines was 34 meters. In January 1912 the Gutehoffnungshütte separated a 6.6 km 2 area of its Neu-Oberhausen mine field . GHH assigned the separated area to the Jacobi colliery as a construction site. The groundbreaking ceremony for shaft 2 took place on February 29 of the same year . In the period from April 16 to June 11, 1912, water ingress occurred in shaft 2. For this reason, the sinking work in shaft 2 had to be interrupted. At the same time, the freezing and sinking work began for shaft 1. In shaft 1, the clear diameter of the shaft was also six meters.
In 1913 one reached in slot 2 at a depth that of 289 meters carbon . The first seam to be developed was seam F, which was 1.2 meters thick . In the same year the first level was set at a depth of 341 meters (- 262 m above sea level ) and the second level at a depth of 445 meters (- 365 m above sea level). Both levels had already been driven up by the Vondern colliery. The shafts were provided with segments up to a depth of 150 meters . From 150 meters upwards, a two-stone shaft wall was used as a shaft extension. Sinking work was stopped in both shafts at a depth of 540 meters. Initially, only shaft 2 was provided with a headframe . Two steam-powered hoisting machines were installed. One winding machine received a traction sheave as a rope carrier , the other winding machine received a winding drum . For slot 1 the necessary material was missing, this was only held open and received as a ventilation shaft a pit fan and a Befahrung conditioning . Since the three mines Oberhausen, Vondern and Jacobi were connected underground by two levels and since there was only a relatively small inflow of pit water in the three construction fields , the mines could be drained via a central water drainage system.
The first years of operation
Production began in 1913. Underground which occurred extraction by blasting and handful offset . To track promotion to the main conveyor lines were pit pony used. As early as May 1914, mine locomotives with compressed air drive were used for route transport. With the outbreak of the First World War and the associated mobilization , many miners were drafted into the war within a short period of time. The First World War also resulted in a drastic decline in the workforce at the Jacobi colliery. The rest of the miners left on the mine did seven shifts almost every week. As a result of this operation, there were no production losses at the Jacobi colliery. Since the demand for metallurgical coke increased sharply during the First World War, the GHH planned in 1916 to build a coking plant on the premises of the Jacobi colliery. In 1917 the Jacobi union disbanded and transferred all rights and liabilities to Gutehoffnungshütte. From January 29 to February 1, 1918, the workers at the Jacobi colliery took part in the general strike for peace . In 1918, a coking plant with a coal recovery plant was also built on the site of the mine . The coke oven battery consisted of 80 large-chamber ovens. With the coal recovery plant it was now possible to produce ammonia and benzene . From December 14th to December 20th, 1918, the workforce at the Jacobi colliery stopped work and did not start. With this work stoppage, the miners wanted to get better pay and enforce the 7.5 hour shift. In the following period, too, the miners repeatedly went on stoppages that lasted for days. On October 25, 1919, as a result of these measures by the miners, the first collective agreement in the Ruhr mining industry came into force . The underground shift time was limited to seven hours by the collective agreement. In April 1920, the mine workforce elected its first employee representative body . From August of the same year, pit horses were no longer used in the route promotion, instead 21 compressed air-powered locomotives were used. About day the carriers building was completed for the shaft 1 in the same year.
Expansion of the mine
In 1921, the weather shaft 2 was sunk deeper. On the second level, a route to the Franz Haniel colliery was driven. Underground travel by means of a passenger train was introduced. In 1923, the third level was set in shaft 2 at a depth of 580 meters (- 499 m above sea level). Due to a decree of the Belgian occupation forces from 1923, coke , coal and other metallurgical products were not allowed to be exported to unoccupied areas. For this purpose, several connecting routes were blocked off over the surface. In 1924 the breakthrough took place on the 2nd level with shaft 1 of the Franz Haniel colliery. In order to continue to supply the Gute Hoffnungshütte with coke, 500 tons of coke were transported daily from the Jacobi colliery via this underground connection between the Jacobi collieries and Oberhausen . The coke was transported from the Oberhausen colliery via the works railway to the hut. From the mid-1920s onwards, there was increased consolidation in the Ruhr coal mining industry . With this, the mining should be operated as cost-effectively as possible with the available resources. In addition, the mines were made more efficient through increased mechanization. The Jacobi colliery was also increasingly modernized and improved technology introduced. In the struts , hammers and cutting machines were used to extract the coal. The compressed air coal hoes used on a trial basis could not prevail in the extraction process against extraction using a hammer. Steel punches were used instead of the wooden pit punches that had been common up to that point . Due to the new extraction techniques, the mining speeds have been increased. In order to make better use of this, a change from full pack to blow pack was made. The rate of degradation could be increased to 1.5 meters per day. The blow offset also had the advantage that the pile costs could be reduced. On September 25, 1925, some tubbing elements broke in the Haniel 2 shaft when the freezing pipes were pulled. This caused the shaft joint to break , causing large amounts of mud and water to pour into the shaft. After the shaft sump was full, these masses flowed over the 2nd level to the Jacobi mine. At the Jacobi colliery, all of the mine workings that were below the 2nd level were drained. As a result of the collapse, many pieces of wood and iron also fell into the Franz Haniel shaft. As a result, the floating sand that penetrated the shaft was dammed up, so that the water flow in the direction of the Jacobi mine dried up. This made it possible for the mine rescue team to create a pressure-resistant water dam on the 2nd level that protected the Jacobi mine. No miners were harmed during this operational disruption. In November of that year the first longwall face with longwall mining was put into operation when mining the coal . In order to use this new offset technique, which came from England, a special permit was required from the mining authorities . The longwall construction of this longwall consisted of steel stamps on which wooden caps were placed. As a result of this expansion, the longwall, despite its height of only one meter, reached a speed of two meters per day. From 1927, large-scale operations were introduced underground. This made it possible to concentrate the funding on a few mining operations and also to use more machines. Cutting machines were used to extract the coals, here bar cutting machines were used initially. The extraction with a hammer decreased. The number of accidents could be reduced by reducing the blasting work in the mining operations.
In 1930 and 1931 there was a deterioration in coal sales at the Jacobi colliery. Since the sales crisis could not be brought under control even by party shifts , the GHH decided on several measures to restrict operations, which were intended to stabilize sales. The coking plant was shut down on April 1, 1931. After the collieries in Oberhausen and Hugo had been shut down, but this did not lead to the desired success, the GHH board decided to merge the collieries Jacobi and Vondern into a composite mine . On February 1, 1932, the closed Vondern colliery was connected to the Jacobi colliery. The mining continued in the Vondern field. On October 1st of the same year, day-to-day operations at the Vondern colliery were shut down. The two shafts of the Vondern colliery remained open for ventilation . These adaptation measures, which became necessary due to the global economic crisis , led to the expansion of the Jacobi mine into a large mine. In addition, by merging the two mines, the operating point performance of the five mining operations was increased to an average of 740 tons per day. The manpower and shift performance could be increased to 2.11 tons. Powerful chain cutting machines were used underground for the extraction, these replaced the bar cutting machines due to their higher performance. The machines were still driven by compressed air . The coal extracted was conveyed to the loading point by means of a vibrating chute and belts . In the blind shafts , the coal was no longer conveyed to the 110-meter-higher conveying floor by wagon, but was conveyed up via a Seiger cell conveyor, which is a bucket elevator. In addition, the first electrical equipment was used at this time . The lighting systems and the belt conveyor drives were electrified. The coking plant was put back into operation on October 20, 1934. In 1936, improved personal protective equipment was introduced for the miners. Increasingly safety shoes and leather helmets were bought and sold to the miners at a reduced price. As a result of this measure, the old floppy hats and roof shoes in the pit were no longer used. In 1937 the mine reached the maximum capacity of shaft 2 with its daily coal production. For this reason, it was decided to upgrade shaft 1 to a shaft for coal production and to expand the daytime facilities. Shaft 1 was expanded further in 1938, and the fourth level was added at a depth of 680 meters (-600 m above sea level).
The second World War
On April 1, 1939, the so-called " Göring Ordinance " came into force, on the basis of which the working hours underground were extended to 8¾ and above ground to 9¾ hours. In August of the same year, a new traction sheave conveyor with hoisting cages went into operation in shaft 1 . The carrier was equipped with a steam carrier , which had an output of 3600 hp . Since this machine required additional steam, a new boiler house with two traveling grate boilers was also put into operation. In September 1939, all conscripts were called up for military service. This led to a labor shortage also at the Jacobi colliery. In order to keep this within limits, the plant management submitted indispensable requests for the miners . This made it possible in the first months of the war to moderate the workforce reduction somewhat. Since the demand for coke continued to rise due to the economic upturn, the GHH board of directors decided to put another coke oven battery into operation at the Jacobi coking plant. This coke oven battery was put into operation in 1939. With the new coke oven battery, coke emissions could be increased by 1,320 tons per day. In 1940 the board of GHH decided to have the outdated battery 1 of the coking plant technically modernized. Work started that same year. In 1941 the 5th level, also known as the 800 meter level, was set in shaft 1 at a depth of 814 meters (-734 m above sea level). In the middle of the same year, the modernized coke oven battery was put into operation. In addition, a furnace gas pipeline was built between the Jacobi and Osterfeld coking plants that year . The pipeline had a diameter of 2500 millimeters and was laid parallel to the works railway line. The coke oven batteries of the Jacobi coking plant were to be supplied with the furnace gas stored in the gasometer on the Rhine-Herne Canal via the line.
In the course of the war, the loss of well-trained specialists became increasingly noticeable. In the Steiger segment in particular , there was a clear need. In order to be able to compensate for the training deficit of the prisoners of war deployed underground, who either had poor or partly no mining knowledge, a higher density of supervision would have been necessary here. Since it was not possible to train further climbers at the mountain schools in such a short time, driver courses were held at the colliery. Here, experienced miners were trained to be drivers and used as operating point supervisors. In 1942 the first longwall, which was equipped with a new type of mining machine, went into mining . The machine was created by the Eickhoff company and called the Iron Heinrich . From autumn of the same year, seven prisoner-of-war camps were set up on Harkortstrasse, in which Soviet prisoners of war were housed. The prisoners of war were used to work underground. In the 1940s a railway line was started between Bottrop-Nord station and the Jacobi colliery, but for unknown reasons this project was not completed. In 1944, a lease agreement was signed with the Franz Haniel mine, which secured mining in the Franz Haniel field. In the same year on November 30th, the magazine and the lamp room were destroyed by an aerial bomb in a bombing raid. As the miners without Grubenlampe approach could, it also had impact on production. The operation of the Jacobi colliery had to be temporarily suspended. After the lamp room had been installed on the second level, the miners were able to resume their work a few days later. On March 24, 1945, the Sterkrade power plant was severely damaged in another bomb attack, which brought production to the Jacobi colliery once more. On March 30th of the same year the mine was occupied by American troops. Despite the two bombing raids, the facilities at the Jacobi colliery were largely preserved at this point. Due to the failure of the dewatering , however, the pit water in the shafts was already 50 meters above the 5th level. On May 11th of the same year the Jacobi colliery resumed operations.
The years after the Second World War
In 1946 the Jacobi mine consisted of the Jacobi 1/2 and Vondern 1/2 plants. At Jacobi 1/2, the deepest level was the 5th level, also known as the 800 meter level. At Vondern 1/2 the 5th level in shaft 2 was 662 meters. The main extraction level was the 3rd level, which was at a depth of 580 meters. In February of the same year, the damage to the lamp room was repaired. From now on, the miners were able to take their pit lamps back with them for days and did not have to leave them on the second level. At that time, seven mining operations were being extracted; the length of the strut was between 200 and 250 meters. Between 30 and 40 coal miners worked per face and cut the coal front with a pick hammer . Chain cutting machines were used in some companies. In the local drifts, the conveyance took place via gentle shaking slides. The electric lighting could not be used sufficiently in the routes and in the mining operations because the necessary light bulbs were missing. In October of the same year, the British occupying powers repealed the Göring Ordinance and reintroduced the eight-hour shift underground . In 1948 a new magazine was built. Friction punches and steel caps were now used in the struts, making it possible to extract the coal with a punch-free mining front. In 1949 the first tank conveyor was used in a face of the Jacobi colliery. In 1951 the first coal plane was used at the Jacobi colliery. In 1952 the Vondern 2 shaft was sunk deeper to a depth of 680 meters, which corresponded to the level of the 4th level of the Jacobi field. The coal from the Franz colliery was also processed in the coal washing plant at the Jacobi colliery. The reason for this measure was that the Franz Haniel colliery did not have its own processing plant at that time . In the course of the break-up of the German mining companies in 1952, the mining property of the Gutehoffnungshütte was converted into an independent successor company by order of the Allied Control Council . That same year, which was coking plant Zeche Jacobi a battery extended. From 1954, no more shaking chutes were used at the Jacobi colliery. In 1955, the 4th Jacobi level became the main extraction level. In the same year, the newly built Franz Haniel power plant took over the supply of the Jacobi colliery with steam .
In 1957 the successor company of GHH was reintegrated into Hüttenwerke Oberhausen AG (HOAG), which implemented rationalization measures to cope with the prevailing coal crisis . In 1956, a breakthrough was made on the 2nd level and on the 3rd level with the Franz Haniel mine. In the years up to 1959 there was a shift in mining to greater depths. For this reason, the HOAG decided to equip the Jacobi 1 shaft with a container conveyance , which conveyed the coal from the 5th level . From 1959 in the Jacobi field in shaft 1, production started from the 5th level. In the following year, the 5th level became the main extraction level. In 1960 a mine control room was put into operation on the mine . From the middle of the same year, a new shaft hall was built above the old shaft hall. The old guide rails in the shaft were replaced by new steel rails. It was also at this point that the sinking work for a raw coal bunker began . This bunker had a capacity of 1000 tons of raw coal. In addition, the tipping and loading devices were installed. In 1962, the compressed-air powered mine locomotives were scrapped. Diesel locomotives are used in their place on the 3rd and 4th level. In 1964, a breakthrough was made with Franz Haniel via a blind shaft . From the end of 1964, the loaded coal trains were automatically uncoupled at the shaft and, after emptying, put back together to empty trains. In addition, the preparatory work for the merger with the neighboring mine Franz Haniel was continued this year. Underground as fewer tailings were needed, these mountains were during the year, mainly on the slag heap deposited Haniel. On January 1, 1965, the funding alliance was created with the neighboring HOAG-Zeche Franz Haniel . The composite shaft system operated eleven struts in the same year . The road was driven conventionally, and side tipping loaders and scrapers were used to load the pile . In 1967 the extending "Möller 5" weather shaft in Gladbeck was taken over. As the “Jacobi / Franz Haniel” joint mine , the colliery was transferred to Ruhrkohle AG in 1968 . The mine was incorporated into Bergbau AG Oberhausen.
The last few years until the shutdown
The revaluation of the remaining life of the mines of the Ruhr Coal AG led to the decision, the group mine split "Jacobi / Franz Haniel". The “Jacobi” mine was closed in 1974. The Franz Haniel colliery was merged with the Prosper colliery to form the Prosper-Haniel mine . The Jacobi shafts remained in operation as weather shafts until 1977. Then these were backfilled and subsequently the headframes and daytime facilities were demolished. The coking plant was supplied with foreign coal and remained in operation until June 30, 1984.
Promotion and workforce
The first known production and workforce figures come from 1913, when 546 miners produced 58,396 tons of hard coal . By the outbreak of the First World War, the daily production rose to over 1000 tons, the workforce was now 1175 miners. In 1915, 1308 miners were already employed at the colliery. These employees produced around 417,231 tons of hard coal. Towards the end of 1915, only 1050 miners were employed at the colliery. Despite this decrease in the workforce, the production could be increased to 1390 tons per production day. In 1917 the workforce was 1410 men, including 460 prisoners of war. This year, 740,000 tons of hard coal were mined. In 1920, 365,931 tons of hard coal were mined. This was done by 1715 miners. By the end of 1920, production sank to 1,100 tons of hard coal every working day. In 1925, 681,197 tons of hard coal were mined by 2,655 miners. In 1930, 789,000 tons of hard coal were mined by 2,430 miners. In 1934, the one million mark was exceeded for the first time. By 1900 miners almost 4000 tons were extracted every working day. In 1935, 2,283 miners extracted 1,245,009 tons of hard coal. In 1940, 3471 miners extracted a total of 1,791,489 tons of hard coal. In the period from 1940 to 1943, production rose annually to over two million tons of hard coal. Additional Sunday and holiday shifts, so-called armored shifts, were used to increase performance. In addition, the workforce rose from around 3500 miners in 1940 to over 5300 men in 1943 through the use of prisoners of war. By the end of 1941, 900 foreign-language miners were already working at the Jacobi colliery.
The maximum production of the mine was achieved in 1943. This year, 5,328 miners produced 2,054,970 tons of hard coal. The man and shift capacity fell to 1.76 tons this year. The reasons for this were the poor nutrition of the miners, insufficient training and language problems. Of the 5,328 miners, 2,840 foreign miners were employed at the colliery, more than a quarter of them were prisoners of war. In 1945, 3,105 miners produced around 605,000 tonnes of hard coal. This production was roughly in the order of magnitude of 1924. The following year production rose from 2,141 tons per day in January to 3,047 tons per day in December. This resulted in a production of around 693,000 tons in 1946. In 1948 the production sank to 800 tons per day. In 1950 the production increased again to 1,819,852 tons of hard coal. This promotion was provided by 5,304 miners. In 1955, 4,916 miners extracted 1,803,192 tons of hard coal. In 1960, 3800 miners produced around 1.25 million coal. In 1964 the production was 1,055,150 tons, this production was provided by 2,812 miners. In 1965, the Jacobi / Franz Haniel colliery provided maximum funding. It amounted to 2,447,089 tons and was produced by 5031 miners. In 1970, 2,620 miners produced around 2.23 million tons of hard coal. The last known production and workforce figures for the mine are from 1973, with 3,055 miners producing 1,925,826 tons of hard coal.
Current condition
Traces of the railway line that began between the Jacobi colliery and Bottrop-Nord train station can still be seen today. A memorial site still remembers two of the seven POW camps on Harkortstrasse . The area of the Jacobi colliery has been completely cleared. There is a public golf course on the premises. At its entrance, a memorial plaque with a three-dimensional map of the HOAG reminds of the Jacobi colliery.
There is also a soccer field ( SV Blau-Weiß Fuhlenbrock 1926 ) on the premises and VC Bottrop 90 operates a total of 8 beach volleyball fields on Jacobi. The entire sports facility is currently being converted by the city of Bottrop in cooperation with the clubs. An artificial turf field will be created, which means that the beach volleyball courts will be relocated and redesigned.
Web links
Individual evidence
- ↑ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj Joachim Huske : The coal mines in the Ruhr area. Data and facts from the beginning to 2005 (= publications from the German Mining Museum Bochum 144). 3rd revised and expanded edition. Self-published by the German Mining Museum, Bochum 2006, ISBN 3-937203-24-9 .
- ↑ a b c d e f g h i j k Wilhelm Hermann, Gertrude Hermann: The old collieries on the Ruhr. 4th edition, Verlag Karl Robert Langewiesche, successor Hans Köster KG, Königstein i. Taunus, 1994, ISBN 3-7845-6992-7
- ↑ a b c d e f g h i j k l m n o p q Fritz Pamp: Die Zeche Jacobi; Their development up to the conclusion of the first collective agreement in 1919. In: Osterfelder Bürgerring. (Ed.): Der Kickenberg, Osterfelder Heimatblatt. No. 22, Walter Perspektiven GmbH, Oberhausen March 2012, ISSN 1864-7294 , pp. 4-6
- ↑ a b c d Fritz Pamp: The Jacobi colony. In: Osterfelder Bürgerring. (Ed.): Der Kickenberg, Osterfelder Heimatblatt. No. 5, Walter Perspektiven GmbH, Oberhausen December 2007, ISSN 1864-7294 , pp. 12-14
- ↑ a b c d e f g Fritz Pamp: Die Zeche Jacobi; The coking plant. In: Osterfelder Bürgerring. (Ed.): Der Kickenberg, Osterfelder Heimatblatt. No. 29, Walter Perspektiven GmbH, Oberhausen December 2013, ISSN 1864-7294 , pp. 4-6
- ↑ a b Joachim Huske: The hard coal mining in the Ruhr area from its beginnings to the year 2000. 2nd edition, Regio-Verlag Peter Voß, Werne, 2001, ISBN 3-929158-12-4
- ↑ a b c d e f g h i j Fritz Pamp: The Jacobi mine; Their development up to the introduction of large companies in 1927 . In: Osterfelder Bürgerring. (Ed.): Der Kickenberg, Osterfelder Heimatblatt. No. 23, Walter Perspektiven GmbH, Oberhausen June 2012, ISSN 1864-7294 , pp. 12-14
- ↑ a b c d e Fritz Pamp: The Jacobi mine; The daily operation. In: Osterfelder Bürgerring. (Ed.): Der Kickenberg, Osterfelder Heimatblatt. No. 28, Walter Perspektiven GmbH, Oberhausen September 2013, ISSN 1864-7294 , pp. 4-6
- ↑ a b c d e f g h i j k l m n o p q Fritz Pamp: Die Zeche Jacobi; Their development up to the end of the Second World War. In: Osterfelder Bürgerring. (Ed.): Der Kickenberg, Osterfelder Heimatblatt. No. 24, Walter Perspektiven GmbH, Oberhausen September 2012, ISSN 1864-7294 , pp. 4-6
- ^ A b c Günter Streich, Corneel Voigt: Zechen Dominanten im Revier. 2nd expanded and revised edition, Verlag Beleke KG, Nobel-Verlag GmbH, Essen 1999, ISBN 3-922785-58-1 .
- ↑ a b c d e f Fritz Pamp: Die Zeche Jacobi; Their development up to the mechanization of coal production in 1957. In: Osterfelder Bürgerring. (Ed.): Der Kickenberg, Osterfelder Heimatblatt. No. 25, Walter Perspektiven GmbH, Oberhausen December 2012, ISSN 1864-7294 , pp. 25-27
- ↑ a b c d Fritz Pamp: The Jacobi colliery; Their development up to the excavation of the partial floor to the east in 1967. In: Osterfelder Bürgerring. (Ed.): Der Kickenberg, Osterfelder Heimatblatt. No. 27, Walter Perspektiven GmbH, Oberhausen June 2013, ISSN 1864-7294 , pp. 4-6
- ^ Fritz Pamp: The Jacobi colliery; Their development up to the introduction of the Fraser system in 1961. In: Osterfelder Bürgerring. (Ed.): Der Kickenberg, Osterfelder Heimatblatt. No. 26, Walter Perspektiven GmbH, Oberhausen March 2013, ISSN 1864-7294 , pp. 4-6