US1700167A - Lamp and guard handle - Google Patents

Description

Jan. 29, 1929.

F. c. KoLLATH LAMP AND GUARD HANDLE Filed June 14, 1927 Patented Jan. 29, 19.29. l

FRANCIS C. KOLLATE, F CHICAGO', ILLINOIS.

LAMP .AND GUARD HANDLE.

Application :filed June 14,

My invention relates to handles and sockets for portable lamps and lamp guards, and especially to that. type wherein the handle is composed of flexible material such as rubber.

@ne of the objects of my invention is to provide a cooperating locking means between the handle and socket so that the socket will be held securely in p lace and canlO not rotate in the handle whenV the lamp is screwed in and out and also that when the lamp guard is clamped on the handle they socket is held against longitudinal movement..

Another object of my invention is to provide a device which is cheap to manufacture, easy to assemble and of few parts.

Realizing that my invention may be varied in its physical embodiment without departing from the spirit of the invention, I desire it to be understood that the speclic construction and form herein shown is tobe taken as illustrative and not in a limiting sense.

In the accompanying drawingslike portions of the device are designated by like characters throughout the several figures.

One method of accomplishing my objects is illustrated in the accompanying drawings in which like ortions ofthe device are designated by li e characters throughout the several figures.

Figure 1 is a side view ofthe device completely assembled.

Figure 2 is a longitudinal sectional view of the device shown in Figure 1, a portion of the socket and lampbeing shown in full lines. f Figure 3 is an axial section of the handle e alone showing the locking lugs.

Figure 4 is a perspective view of the` socket illustrating the lug receiving cavities.

Referring now to the drawing in detail, the handle 1 is provided with' an enlarged portion 2 having a socket receiving chamber 3 therein, and is preferably made of resilient and comparatively soft rubber which will act as an enicient shock absorber forv the socket and lamp and which will stretch suJ1 5@ iciently to receive the socket and hold it securely in place after it is inserted.

The handle 1 is provided with suiciently thick walls to alford a suitable grip for the user and has a longitudinal assage 4 coinmunicating, with the cham er 3 for the electric conductors 5.

lam

1927. Serial No. 198,732.

The socket 6 is of the usualV internal construction; that is, it is provided with the usual threaded shell and center contacts for receiving the lampin the usual well known manner, which is no part of my invention and need not be described here.

The chamber 3 is somewhat longer than the socket 6, in order to provide room for the knot 7 formed in the conductors behind thel 65 socket, the conductors being fastened in the socket inthe usual manner. The knot 7 seats against the annular shoulder 8 when tension is exerted on the conductors, thus preventing them from being pulled loose from the socket.

Cavities 9 are located in andnear the front end of the socket as illustrated and are provided with inclined front and rear walls 10,L and vertical side walls 11. These cavities 75 receive the lugs 12, which are radially disposed in the handle near'the front end of the chamber 3, when the socketis inserted.

The lugs 12 are also provided with inclined front and rear walls13, which, co-

`operating with theinclined walls 10 ofthe socket, allow .it to be easily inserted and removed. They are also provided with vertical side walls 14 cooperating with the walls 11 of the socket cavitiesto prevent 85 effectually rotation of the socket when the is screwed in or out.

Dlrectly outside the internal lugs 12 is an annular groove 15 for receiving the clamping ring of the lamp guard 17. This is` an ordinary split ring and may be clamped in place by means of the screw 18.

In the ordinary construction the socket' will turn in the handle when the guard and clamp are removed for inserting or removin'g the lamp. It will be readily seen that in my invention as illustrated and described the socket is securely locked rotatably when the clamp is removed, but may be easily inserted or removed. When the ring 16 is ma clamped in place, the lugs 12 are pressed tightly into the cavities 9 filling themcompletely and preventing any movement eX- cept through the resilience of the rubber handle.

rllhe socket is provided with the flange 19 which cooperates with the shoulder 2O to prevent longitudinal movement of the socket when the lampA is inserted.

It has been found in practice that this construction is very reliable and dees net` easily get out of order.

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in, said depressions having vertical side Walls.

and inclined end Walls, corresponding radially disposed lugs in said chamber and having vertical side Walls and inclined end `walls to cooperate with the Walls of said depressions, a flange adjacent the outer end of said socket and having a vertical rear Wall, a vertical shoulder adjacent the outer end of said lchamber and cooperating with the Hange on said socket to prevent longitu dinal movement of said socket when' a lamp 20 is inserted.

2. Amhand lamp comprising a handle conwearer sisting of a single piece of resilient material and having a chamber in one end for a socket, a socket in said chamber, said socket having radially disposed depressions therein, said depressions having vertical side walls and inclined end walls, col-'responding 1'adiall,y\disposed lugs in said chamber and having vertical end Walls and inclined end Walls to cooperate with the walls of said depressions, a flange adjacent the outer end of said socket and havlng; a vertical rear Wall, a vertical shoulder adjacent the outer end of said chamber and vcooperating with the Harige on said socket to prevent longitudinal movement of said socket When a lamp 'is inserted, and means for clamping said lugs in said depressions.

In Witness whereof, I have hereunto subscrlbed v my name.

FRANCIS C. KOLLATH.

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