NOB E 2/2

NOB E 2/2
	E 2/2 No. 438 made in Winterthur by SLM
Numbering:	NOB 46-49, 56-59, 71-78, 97-102, 181-190 ; SBB 8071-8098
Number:	32
Manufacturer:	NOB , Esslingen , SLM
Year of construction (s):	1868-1876
Retirement:	1882-1916
Axis formula :	B.
Length over buffers:	6570 mm 1; 7370 mm 2; 7480 mm 3; 7423 mm 4; 7515–7615 mm 5; 7620 mm 6 7
Service mass:	16.9 t 1; 23.0 t 2; 24.6 t 3; 25.6 t 4 6 7; 25.0 t 5
Top speed:	45 km / h 1; 55 km / h 2–7
Indexed performance :	75 kW 1
Driving wheel diameter:	1220mm 1; 1390mm 2-7
Cylinder diameter:	252mm 1; 320mm 2-7
Piston stroke:	540 mm 1; 600 mm 2-7
Boiler overpressure:	10 bar 1 3 5 7; 11 bar 2a 4a 6
Grate area:	0.50 m² 1; 1.10 m² 2–4 6; 1.00–1.10 m² 5 7
Superheater area :	no
Evaporation heating surface:	38.50 m² 1; 68.60 m² 2; 63.50 m² 3; 67.70 m² 4 6; 63.50-67.70 m² 5 7
Locomotive brake:	Spindle brake
	1 NOB, Krauss ; 2 NOB, Maey ; 3 NOB, Maey 2nd boiler ; 4 Esslingen ; 5 Esslingen 2nd boiler ; 6 SLM ; 7 SLM 2nd boiler ; a up to 1878 were specified as 12 bar

The Schweizerische Nordostbahn ( NOB ) acquired a total of 32 brand-new tank steam locomotives of the type E 2/2 from 1865 . These were used in light route and shunting services.

procurement

The Swiss Northeast Railway built four type E 2/2 tender steam locomotives in its workshop in Zurich. These machines, weighing only 17 tons, were intended for use on the Bülach-Regensberg railway, which was planned as a horse-drawn tram . Since the machines proved their worth, she converted a Nordbahn locomotive ( D 1/3 Limmat) in 1868 , as well as four more new machines in-house. She then purchased 24 machines from the Esslingen (14) and Winterthur (10) machine works . A total of 32 steam locomotives of this type were used as new constructions by the NOB.

The first four machines of the NOB workshop in Zurich were built in 1865 under the direction of the machine master Krauss. The second four machines were also built there in 1868, but under machine master Maey. This was also noted on the nameplates.

For the D 1/3 rebuilt in 1868, see a separate article.

In addition, there was the Ed 2/2 series at the NOB .

Technical

E 2/2 No. 48 in the NOB / Krauss design

All machines had an inner frame. The four longitudinal springs were all suspended above the rotating plate and supported themselves with rods on the axle bearings.

NOB, Krauss

The wheelbase of the machines delivered in 1865 was 2100 mm. The water tank was installed between the 9 mm thick inner frame. The top of the domeless boiler only had the safety valve. The valve box was on the side of the smoke chamber. The external engine was provided with an all control with lever operation. The four-block spindle brake acted on the rear axle. The machine was able to carry 1.5 m³ of water and 0.8 tons of coal.

NOB, Maey

Locomotive No. 58, NOB / Maey version

The wheelbase of this machine has been extended to 2500 mm. The firebox of the boiler, which was obtained from abroad, was of Maey's anchorless design. The boiler position was 1945 mm above the top of the rail. Because the fire box was above the rear axle, the machine only had a moderate overhang due to the 6,280 mm long frame. The lower edge of the 10 mm thick inner frame was 880 mm above the upper edge of the rail. The rotary valve regulator was the only one on a NOB machine to be located in a housing above the boiler. The inlet pipes were led through the smoke chamber. The 2.4 m³ water tank was located between the frames under the smoke chamber. On both sides behind the driver's cab were two coal boxes for a total of one ton of coal. The safety valve was mounted above the fire box. The rod length could be considered favorable. The control was of the Allan type with an eccentric and lever reversal. The piston rods were not passed forward. In addition to the sheet metal, a railing was also placed around the boiler. A front wall door was installed in the driver's cab. The four-block spindle brake acted on the rear axle. The sandboxes were behind the cylinders and were operated together.

Esslingen and SLM

E 2/2 No. 98, Esslingen version with first boiler

Machine no. 438, version SLM with a second boiler in the Zurich train station

Because the main data of the machines built by SLM largely correspond to the last machines built in Esslingen, the description is largely limited to the machines in Esslingen.

The first machines largely corresponded to the NOB C 2/2 from the same manufacturer. From 1875, the machines were given an extended wheelbase of 2700 mm to improve the smoothness at the top speed of 55 km / h. The Maey design boiler did not have a steam dome. The Ramsbottom safety valve was on the manhole cover. Like the inlet pipes, the rotary valve regulator was located in the smoke chamber. The smoke chamber was provided with only one emptying funnel for the fly ash. The steam pressure was initially given as 12 bar, in the statistics after 1875 only 11 bar. In 1890 it even had to be reduced to 10 bar due to deformations that occurred. The replacement boilers installed between 1884 and 1906 were only approved for 10 bar and were 165 mm shorter. They were no longer made in Maey's style, as the anchorless structure made itself felt negatively in the form of boiler deformations. The 10 mm thick inner frame was designed as a box frame with an integrated water tank. The water tank consisted of two chambers, which prevented effective cross stiffening over 4 m. The control was of the Allan type with an eccentric crank and pocket link. The four-block spindle brake acted on the rear axle. The sandpit was located on the sheet metal, which was equipped with a surrounding railing. The driver's cab had a front wall door.

The machines 8071–8085 could carry 2.4 m³ of water and 1.1 tons of coal. The machines 8086-8098 had space for 2.5 m³ of water and 1.1 tons of coal.

Steam heating was installed between 1889 and 1896. The machines were equipped with a Klose type speedometer from 1901 onwards.

The machines 8075, 8076, 8078–8080 and 8096–8098 were equipped with the automatic Westinghouse brake between 1895 and 1912, but this did not affect the locomotive wheels:.

numbering

NOB until 1879	NOB 1879-1895	NOB 1895-1902	SBB from 1902	Factory number	Construction year	Manufacturer	2nd boiler	Discarded	Remarks
46	202	-	-	1	1865	NOB	-	1882
47	203	-	-	2	1865	NOB	-	1882
48	204	-	-	3	1865	NOB	-	1882
49	205	-	-	4th	1865	NOB	-	1882
56	211	411	8071	5	1868	NOB	1884	1907
57	212	412	8072	6th	1868	NOB	1884	1910
58	213	413	8073	7th	1868	NOB	1884	1910
59	214	414	8074	8th	1868	NOB	1884	1911
71	215	415	8075	1259	1873	Esslingen	1903	1916	^a
72	216	416	8076	1260	1873	Esslingen	1903	1916	^a
73	217	417	8077	1261	1873	Esslingen	1903	1913
74	218	418	8078	1262	1873	Esslingen	1999	1916	^a
75	219	419	8079	1312	1873	Esslingen	1901	1916	^a
76	220	420	8080	1313	1873	Esslingen	1905	1916	^a
77	221	421	8081	1314	1873	Esslingen	1903	1916	^a
78	222	422	8082	1314	1873	Esslingen	1904	1913
97	223	423	8083	1341	1874	Esslingen	1905	1916	^a
98	224	424	8084	1342	1874	Esslingen	1904	1909
99	225	425	8085	1343	1874	Esslingen	1902	1914
100	231	431	8086	1457	1875	Esslingen	1900	1916	^a
101	232	432	8087	1458	1875	Esslingen	1903	1914
102	233	433	8088	1459	1875	Esslingen	1897	1913
181	234	434	8089	91	1876	SLM	1904	1916	^a
182	235	435	8090	92	1876	SLM	1904	1916	^a
183	236	436	8091	93	1876	SLM	1906	1916	^a
184	237	437	8092	94	1876	SLM	1904	1916	^a
185	238	438	8093	95	1876	SLM	1895	1916	^a
186	239	439	8094	96	1876	SLM	1904	1916	^a
187	240	440	8095	97	1876	SLM	1897	1913
188	241	441	8096	98	1876	SLM	1904	1916	^a
189	242	442	8097	99	1876	SLM	1897	1913
190	243	443	8098	100	1876	SLM	1897	1914

Table remarks: ^a 1916 sale to the Austro-Hungarian Army Administration , after 1918 to FS and MÁV , not redrawn by MÁV, whereabouts unknown.

Operational

The NOB-Maey machines were required by the NOB for the train loading in Romanshorn. There they were replaced by the converted Ed 2/2 .

To the railway company Effretikon-Hinwil Pfäffikon- the numbers were rented 100 to 102 and from 1876 to 1886, the numbers from 188 to 190 from 1,875 to 1,876.

The machines from Esslingen and SLM were preferred by the NOB in suburban traffic around Zurich.

The SBB machines 8075–8080 were assigned to District VI and thus to the Romanshorn workshop. The remaining machines were assigned to District III and the Zurich workshop.

Whereabouts

In 1916 the SBB sold the remaining machines to the Austro-Hungarian Army Administration. After 1918 the machines came from this to the FS and MÁV, not redrawn by MÁV, further details and whereabouts unknown.

swell

The steam operation of the Swiss railways 1847–1966 (Moser book) p. 93 ff