Stilson 50/60 HP

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Stilson

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Model A (1915-1917)
Production period: 1907-1909
Class : Upper class
Body versions : Roadster , touring car , limousine
Engines: Gasoline engine .
9.3 liters (37.3 kW)
Length:
Width:
Height:
Wheelbase : 3048-3378 mm
Empty weight : about 1540 kg

The Stilson 50/60 HP is from 1907 to 1909 produced American upper class - passenger cars . The manufacturer was the Stilson Motor Car Company in Pittsfield , Massachusetts .

Brand and company history

The Stilson Motor Car Company was founded in 1907 by Harry M. Stilson . The chief designer was Clarence P. Hollister , who had previously designed the Berkshire . In the short period of its existence, the company only produced the 50/60 HP, of which there were different variants.

Model history

The 50/60 HP first appeared in 1907 only as a seven-seater Touring with a wheelbase of 120 inches (3048 mm), as used throughout the entire production period Herschell-Spillman - six cylinder - T-head engine with 9.3 liter displacement and a conventional four-speed transmission .

1908 was the model designation 50/60 hp Type C . Hollister now also introduced its patented hydraulic clutch in the Stilson , which worked with an oil pump controlled by a planetary gear. As in Berkshire , however, it was a failure here too. Although it worked very smoothly and efficiently, it turned out to be unreliable. The Touring was given a wheelbase that was three times longer to 123 inches (3124 mm). A sedan on the same chassis was only added to the range in this model year. At US $ 5500, it was very expensive. One source cites 126 inches (3200 mm) wheelbase, at least for the Touring.

In 1909 they returned to the conventional four-speed gearbox and there were again new names. The still seven-seater Touring 50/60 HP Model H was given a significantly longer wheelbase of 133 inches (3378 mm) and a four-seater Runabout Model J with a significantly shorter (122 inches; 3099 mm) wheelbase replaced the sedan.

In 1912, shortly before production of the Berkshire was discontinued , a six-cylinder model of this brand appeared with the same engine as the Stilson 50/60 HP . It is possible, but not proven, that this was a variant of the Stilson .

technology

engine

Herschell-Spillman Company ; a water-cooled six - cylinder T-head engine , as used in the Berkshire 58 HP and possibly in Herschell-Spillman's own prototype from 1907. It had a displacement of 569.5 ci (9332 cm³) with a 4.6875 inch cylinder bore and 5.5 inch stroke (119.06 × 139.7 mm). T-head engines have the intake and exhaust valves on opposite sides of the engine block. Each side has its own camshaft housed in the crankcase . It is therefore a sub-form of SV valve control . The crankshaft of this engine ran in seven main bearings. The engine had splash lubrication , the fuel mixture regulated one Schebler - carburetor . The power is specified with 50 bhp (37.3 kW). His NACC rating was 58 HP.

drive

It is known that in 1907 and 1909 a conventional four-speed transmission with a third gear ratio was used. The 1908 Hollister transmission had only three forward speeds. A special technical feature was a clutch operated by an oil pump, which should simplify the shifting process and make it smoother. The pump was operated with three planet gears . There is no information on power transmission to the rear axle. It was typical of the time that such powerful motors passed their power on to two drive chains via a shaft and a back gear with gear wheels, but the only known image of a Stilson does not have the distinctive chain cases required for this, which are attached to the footboard in front of the rear fenders. The chains run behind this casing, which can be opened for lubrication and maintenance purposes. This leads to the conclusion that Stilson already relied on the modern shaft drive for the rear axle, as did Rolls-Royce or Packard .

chassis

Typically, lead frames have been used; a different design would be so unusual that it would have been mentioned in the literature on the well-occupied vehicle as well as the special clutch. Detailed information is only available for 1908. No source indicates any deviations, so it can be assumed that, apart from the wheelbase , there were hardly any deviations in this conventional chassis. The wheelbase of the respective models is shown in the table below.

The 50/60 HP is referred to as a right-hand drive, which is consistent with the only image of such a vehicle that can be found in the literature. This also shows the artillery wheels typical of the time . Their dimensions in the first two years of production were 36 × 4 inches at the front and 36 × 4½ inches at the rear; only 1909 is noted on the back 36 × 5½ inches.

The gas tank held 23 US gallons (approximately 87 liters).

The 1908 50/60 HP Type C Touring weighed around 1540 kg.

Overview

construction time
HP NACC model		 engine Displacement wheelbase body List price
US $		 Remarks
1907 50/60 HP R6, T-head
Herschell-Spillman 		9332 cc 3048 mm Touring 7 pl. 4500.- Motor data:
1908 50/60 HP Type C R6, T-head
Herschell-Spillman		 9332 cc 3124 mm Touring 7 pl. 4500.- Motor data:
1908 50/60 HP Type C R6, T-head
Herschell-Spillman		 9332 cc 3124 mm Chauffeur Lim. 7 pl. 5500.- Motor data:
1909 50/60 HP Model H R6, T-head
Herschell-Spillman		 9332 cc 3378 mm Touring 7 pl. 4500.- Motor data:
1909 50/60 HP Model J R6, T-head
Herschell-Spillman		 9332 cc 3099 mm Runabout 4 pl. 4250.- Motor data:

literature

  • Beverly Rae Kimes (ed.), Henry Austin Clark Jr.: Standard Catalog of American Cars 1805-1942. Krause Publications, Iola WI, 1996; ISBN 978-0-87341-428-9 .
  • GN Georgano (Ed.): Complete Encyclopedia of Motorcars, 1885 to the Present. Dutton Press, New York, 2nd Edition, 1973; ISBN 0-525-08351-0 .
  • Robert D. Dluhy: American Automobiles of the Brass Era: Essential Specifications of 4,000+ Gasoline Powered Passenger Cars, 1906-1915, with a Statistical and Historical Overview. Mcfarland & Co Inc. publishers, Jefferson NC, 2013; ISBN 0-78647-136-0 .
  • Association of Licensed Automobile Manufacturers (Ed.): Handbook of Gasoline Automobiles / 1904–1905–1906. Introduced by Clarence P. Hornung, Dover Publications, New York, 1969.
  • National Automobile Chamber of Commerce (Ed.): Handbook of Automobiles 1915–1916. Dover Publications, 1970.

Web links

Individual evidence

  1. ^ Georgiano: Complete Encyclopedia of Motorcars, 1885 to the Present. 1973, p. 561 (Stilson).
  2. ↑ a b c d e f g h i j k l m n Kimes, Cark: Standard Catalog of American cars, 1805-1942. 1996, p. 1403 (Stilson).
  3. ↑ a b c d e Dluhy: American Automobiles of the Brass Era , 2013, p. 121 (Stilson).
  4. ↑ a b c d e f g h i j carfolio.com: 1908 Stilson Six.
  5. ^ Kimes, Cark: Standard Catalog of American Cars, 1805-1942. 1996, pp. 121-122 (Berkshire).
  6. ^ A b Classic Car Database: Specifications, 1912 Berkshire F Series, T-head, 134 in. Wheelbase.
  7. ↑ NACC: Handbook of Automobiles 1915 , p. 212 (NACC rating, table)
  8. ↑ a b c d e Dluhy: American Automobiles of the Brass Era (2013), p. 61 (Berkshire).