Walter Slingsby And Co., Ltd.
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Walter Slingsby & Company Limited
Worth Works
Woodhouse Road,
Keighley
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WASK was an acronym for "Walter A Slingsby of Keighley."
The firm were active until 2003 when they were taken over by The American Crane Company.
Exhibits at the APLE's 1936 conference in Cheltenham included scale demonstration models of their
"WASK" Patent "Up and Down" Lamp Suspenders for both gas and electric lamps. The equipment lowers the lamp to the pavement without
disconnecting the supply. - Public Lighting #3, 1936
They exhibited the short arm type "WASK" Patent "Up And Down" gear at the APLE's Folkestone conference
which enable lamps to
be lowered and brough to the kerb in one simple operation with the supply always connected by
means of the hinged supply pipes, so the pilot light is never disconnected and there is no loose
coupling to cause any leakage. Have introduced a new hook mechanism. The "Wask" gear is popular
throughout the country including London. - APLE Conference Programme 1937
The stand was chiefly devoted to the "WASK" Patent "Up And Down" Lamp Suspenders for raising and lowering
overhead gas and electric street lamps which the supply connected to the lamps at all times during the full process
of raising and lowering. (This is useful for testing and adjusting the lamps.) Two large scale models were used to
illustrate the function of the hook and the swivel joints and tubes, one with a gas lamp and the other with an electric
lamp. Both taps will be actually alight to demonstrate that both gas and electric lamps can be lowered with the
lamp alight so that all adjustments can be made on the kerb. The system could be fitted to lamps at
any height or overhang. Also exhibited will be a selection of bracket arms and various fittings to suit tramway poles
or increase the mounting heights of lamps. - Public Lighting #10, 1938 and APLE Conference Programme 1938
The firm have issued an illustrated brochure which describes in detail the complete range of
the "Wask" patent lamp raising and lowering gear for modern street lighting by gas; also various designs
of bracket arm and special fittings. - Public Lighting #11, 1938
The firm are again exhibiting their raising and lowering system, stressing that it's the only
type of gear allowing the supply to remain connected. The new Extra Short Arm
type patent hook is being used which has been specially designed to suit lamps
mounted above the kerb on roads of less than 30 foot width. - APLE Conference Programme 1939
"It was arranged to demonstrate on Great Western Road, Glasgow, two of Siemens' lamps fitted with
the usual "Wask" Patent Short Arm type Raising and Lowering Gear (similar column shown above which is in
Wellingborough). With
this gear the electricity supply is connected to the lamps by cables running inside hinged tubes which
lower with the lamp.This arrangement is absolutely weather-tight and allows the lamp to be lowered
in bad weather without fault. This gear is becoming increasingly popular for lamps on roundabouts
planted with shrubs or flowers or in rural districts where use of ladders is costly." - Public Lighting #15, 1939
Patents:
Improvements in apparatus for raising and removing gas, electric and other lamps (GB 435381)
References:
APLE Conference Programme Folkestone 1937
APLE Conference Programme Bournemouth 1938
APLE Conference Programme Glasgow 1939
- External Links:
- Grace's Guide
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