Improvements in Apparatus for Elevating and Lowering Electric Lights.
Year: 1890

page_text: Date of Application, 21st June, 1890-Accepted, 20th Dec., 1890
COMPLETE SPECIFICATION.
Improvements in Apparatus for Elevating and Lowering Electric
Lights.
We, Joux PETER HEBENDAHL, Blacksmith, GEORGE MILLER, Merchant,
and EDWIN FRANKLIN WARNER, Undertaker and Furniture Dealer, all of
Weatherly, in the County of Carbon and State of Pennsylvania, United States of
America, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention relates to certain improvements in the means for suspending and
adjusting electric lamps in position; and it consists of the novel combination and
construction of parts, as will appear from the following description and accom-
panying illustrations, in which-
Figure 1 is a view in elevation, partly sectional, of our invention.
Fig. 2 is a cross-section of the inclosing casing drawn to an enlarged scale &
looking in the direction of the arrow r.
Fig. 3 is a part side elevation and part sectional view of the support.
In accordance with our invention we employ, in connection with the lamp suspend-
ing or adjusting cable or wire A, a windlass or drum B, suitably supported by
bracket within an inclosure b, said inclosure being suspended by suspending
bracket A. The shaft B of the windlass or drum B extends downward, and has
applied to its lower end a crank or handle for its convenient manipulation, said
end bearing in a bracket e, secured to the support. or pole c. In order to auto-
matically effect the holding of the shaft B, against rotation when at rest, a ratchet el
is secured thereto, with which is caused to engage a pawl e, pivoted upon the
bracket e. The cable or wire A is guided in its movement and supported upon a
pulley f
CC are opposite jaws pivoted upon and within an inclosure, secured in position
upon bracket A, the pulley being secured within said inclosure. The jaws C C
are provided with curved or arc slots i, through which their pivots pass to permit
said wings to have a limited movement outward from each other.
D is a conical support from which the lamp is immediately suspended, as shown,
and which has proximately spherical or ball-shaped upper end D', over which is
screwed a socket or block , to which is directly connected the suspending wire or
cable A. Normally the conical support D, with its ball-shaped end D', stands
between and is engaged by the jaws C C, thus serving as a safety retention device
for the lamp, since in the event of the accidental disengagement of the pawl e² from
the ratchet el of the windlass-shaft it will still retain the lamp in its elevated position.
It will be seen that in order to lower the lamp, as is necessary to clean the same and
renew the carbon, the shaft B' is first turned so as to still further wind the cable or
wire upon the windlass until the ball-shaped end D' of the support D is elevated
past the upper inner ends of the jaws, the latter being thus permitted to spread
apart. Then by reversing the motion of the shaft B' the weight of the lamp &c.,
will cause the ball-shaped end D' of the support D to press downward upon the upper
inner ends of the jaws C, thus spreading the lower ends of the latter sufficiently
apart to permit the lower flared end of said support to pass said jaws at those points
and the consequent lowering of the lamp to the operator, which is effected by means
of guide-rope 93. (Shown in dotted lines.)
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:
1st. In a device for elevating and lowering electric lights the suchen dine noble on

page_text: rope, the drum or reel, its shaft and inclosing-casing, the jaws having a sliding and
pivotal connection with their support, and the hollow conical cap connected to the
lamp, substantially as shown and described.
2nd. In a device for elevating and lowering electric lights, the supporting-jaws
having a sliding and pivotal connection with their support, and having their lower
ends upturned to form a hook or beak which engages the hollow conical cap
connected to the lamp, said cap having the screw threaded plug or block in its upper
end having connection with the suspending wire, substantially as shown and
described.
3rd. In a device for elevating and lowering electric lights, the pole or post having
the supporting bracket or arm at its upper end, in combination with the drum or
windlass and its shaft, and inclosing-casing supported by said bracket, the jaws
having a pivotal and sliding connection with their support, the inclosing-casing
formed on the end of the bracket supporting the pulley, the hollow conical cap
connected to the lamp, and the suspending wire, substantially as shown and
described.
4th. The combination, with the lamp, of the jaws having a sliding and pivotal
connection with their support, and the conical support having a proximately ball
shaped upper end engaging said jaws at their upper inner ends, substantially as
shown and described.
5th. The combination of the pivoted jaws, the suspending wire or cable, the
conical cap, said wire having a screw-plug or block connection with the upper
spherical end of said support, substantially as described.
6th. In a device for elevating and lowering electric-lights, the drum or windlass,
its inclosing-casing, and its shaft having secured thereto near its lower end the
ratchet-wheel engaged by the pawl pivoted to the shaft supporting bracket, the
shaft being adapted to receive a crank at its lower end, the suspending rope or
cable secured to the hollow cap, and the jaws having the pivotal and sliding
connection with their support, substantially as described.
Dated the 21st day of June 1890.
F. W. BARKER,
Applicants' Agent.