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c. h. kempton full range | gas lanterns

See also: Elm Work's Majestic
Ideal lamp for main street lighting. A circular lantern designed for central suspension (but later could be used with bracket arms). Fitted with Multiplane mirror reflectors. Designed for B.S.I. installations of Classes F, E or D (later Group 'A'). The reflectors could be adjusted in-situ by way of wing-nuts so that the beam can be raised or lowered. The reflector constitutes almost a complete "cut-off" thus almost eliminating glare. Can be fitted with refractors, stainless steel wing reflectors or "Multiplane" mirror glass reflectors. Entirely storm proof and gives a maximum and even illumination on the road surface. Has a 'Type 2 Distribution' (Semi Cut-Off) accordingto the draft 1945 specification
Majestic 1000 candle power
10-15 mantles Top entry 1932 Catalogue
1937 Advert
1937 Programme
1937 Paper
1937 Journal
1938 programme
1939 programme
1944 journal
1945 advert
1945 Paper
1947 Advert
1951 book
1948 Advert

See also: Elm Work's Kemborn
A circular lantern designed for central suspension. Fitted with Multiplane mirror glass reflectors. Has a similar appearance to the Majestic but smaller and used for the lighting of secondary and residential roads (Group B). Can be fitted with refractors, stainless steel wing reflectors or "Multiplane" mirror glass reflectors. Gives an output of 1200 to 2400 lumens. Design slightly changed post-war.
Kemborn 400 candle power
4-6 mantles Top entry 1932 catalogue
1937 advert
1938 programme
1939 advert
1939 programme
1945 advert

Provisional British Patent Application: 1938/33
Registered Design: 779715
A low pressure gas unit for artistic and residential lighting. Asymmetrical low-pressure gas unit. The lamp is supplied with 2 to 5 burners each size. Maximum intensity from lamp with Bijou mantles is 1275 candles. Called the "Kempar Two-Way Lamp" in 1945.
Kempar 1275 candle power
2 x 2-5 mantles Top entry 1936 advert
1944 journal
1945 advert

Of simple and efficient design, the lamp has a high candle power and is suitable for the lighting of thoroughfares with wide spacing of lamps. Modern development based on the conventional square lantern, and incorporates the use of two fixed mirror glass faceted reflecting elements. Recommended for the lighting of roads in rural areas where economic considerations dictate the need for using greater spacings than is usually considered good practice. In 1938, a new range of fittings, having better distribution characteristics has been introduced. Three and four-way reflecting elements are being designed. Available in two sizes for output of 800 to 1800 lumens. Modern development of the Square Lantern. Angular designations stated on the top of the lantern on raised blocks - a symmetrical 180° distribution was available. Also called the "Kemptolyte."
Starlyte ??? candle power
2-4 mantles ??? 1937 advert
1937 programme
1938 advert
1938 programme
1939 advert
1939 programme
1945 advert

Designed to light Group "A" Roads to the requirements of the MOT Final Report. It is a cut-off fitting having a useful flux distribution (3800-5800 lumens), the controlled part of which can be focussed in-situ to obtain a high and even degree or road brightness to be obtained. The zone between 70° and 85° is controlled by means of mirror reflectors. Provision is made for lateral adjustment to meet the requirements of road width, spacing, etc.

The lantern consists of a rectangular copper housing in which two sets of mirror glass reflectors are arranged with their main (centre) mirrors parallel to the major horizontal axis of the burner, the mantle nozzles of which are arranged in staggered line formation, and are usually 12 in number. The two reflecting systems consist of a set of 3 curved glass mirrors fixed on a sheet metal back plate which is attached my means of hinges to the lantern casing. A simple positive adjuster permits rapid vertical focusssing of the controlled light beams between the angles of 70° and 80° and adjustment can be made to give up to 25° horizontal bias from each set of mirrors, whilst the lantern is designed to give a complete cut-off at 90° with the vertical. The air and gas adjusters are of conventional design, and are accommodated in the roof of the lamps where they are readily accessible. The construction of the lamp is such that complete access to the light chamber for maintenance purposes is obtained by opening the two hinged glass frames which form the lower lantern casing, and there are no interior fittings to hinder lantern cleaning.

Triumph ??? candle power
12 mantles Top entry 1938 advert
1938 programme
1939 advert
1939 programme

See also: Elm Work's Heathfield
Recommended for side street lighting. Can be fitted with refractors, stainless steel wing reflectors or "Multiplane" mirror glass reflectors. Exceptionally strong and is rain and wind proof.
Heathfield ??? candle power
??? mantles ??? entry 1938 programme
1939 programme
1944 journal

See also: Elm Work's Stellaris
Most effective way to deal with residential roads having a width of carriageway up to 30ft. The roof of the lantern is shaped to house a pair of mirror glass paraboloid reflectors and supports an oval cowl harmonising with the roof structure. The directive device is situated above the mantles and deflects light above the horizontal at a vertical angle of 75° to 80° along the kerb. The carriageway and footpath are thus equally illuminated and there is a complete absence of the shadows inevitably associated with back and under-mantle reflectors. A light output of 180 lumens per cubic foot of gas is attained, with the highest utilisation factor yet achieved with low-power street lighting units. Equal street lighting effectiveness is obtained with one-half of the gas consumption necessary with lanterns of the standard type.
??? ??? candle power
??? mantles Top entry 1947 Programme
1947 Advert
1947 Journal
1948 Advert