US2291906A

US2291906A - Lamp guard

Info

Publication number: US2291906A
Application number: US285925A
Authority: US
Inventors: Francis C Kollath
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-07-22
Filing date: 1939-07-22
Publication date: 1942-08-04
Anticipated expiration: 1959-08-04

Description

F. c. KOLLATH 2,291,906

LAMP GUARD Filed July 22, 1939 AT ORNEY.

Patented Aug. 4, 1942 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates to lamp guards of the type which are detachably connected to a handle guard, and particularly to a rubber handle guard.

An important object of the invention is to provide new and improved looking or clamping means for locking or clamping a two-part lamp guard in position, the means being constructed and arranged to permit quick and ready operation.

Another object of the invention is th provi- I sion of a lamp guard having a two-part collar pivotally connected together, and a clamping or locking arrangement at the upper part of the lamp guard for drawing the two parts together and for causing a squeezing clamping action of the collar about the neck of a handle guard so as to lock the lamp guard firmly to a handle guard.

Still another object of the invention is the provision of a lamp guard made in two parts and rigidly secured to a hingedly connected collar,

whereby the lamp guard is free to open outwardly about the pivotal connection of the collar, there being an improved clamping element to lock the two parts of the guard together at the top, by

drawing the two members together, and to cause the collar to clampingly' squeeze about a rubber handle guard to lock or secure an electrical socket provided in the rubber handle guard.

Numerous other objects and advantages will be apparent throughout the progress of the fol-' lowing specification.

The accompanying drawing illustrates a selected embodiment of the invention, and the views therein are as follows:

Fig. l is a detail elevational view of a lamp guard and embodying the invention, the lamp guard being shown in locked position;

Fig. 2 is a view similar to Fig. 1, showing the clamping element partly unlocked;

Fig. 3 is a view similar to Figs. 1 and 2, but;

showing the looking or clamping mechanism totally unlocked and the two parts of the guard spread apart; and

Fig. 4 is a detail top plan view of the device The parts It] and II are pivotally con g nected at l4 by any convenient means, such as by a rivet passing through the extremities of the legs l3. The collar 9, therefore, comprises the parts I!) and H, pivotally connected at l4. The vertical wires 6 have their bottom ends rigidly secured to respective parts of the collar 9 and their upper ends secured to a supporting member 15, comprising two parts !6 and H; the vertical wires 6, on one side of the slit 8, being connected to the member l6, and the remaining Wires 6, on the other side of the split 8, being connected to the member ll. The lamp guard, therefore, is free to be spread apart along the line 8 about the pivot points 14. A book [8 is adapted to be operatively fastened to the part I! of the member I5.

The lamp guard 5 is adapted to be locked to a handle guard i9, which is preferably made of flexible rubber-likematerial. This guard is provided with a longitudinal bore to receive a conductor carrying cable. The conductors in the cable are adapted to make electrical contact with a lamp socket (not shown) provided in a recess in the largest portion 20 of the handle guard 19.

The legs I3 of the collar 9 permit the two parts of the lamp guard to be spread apart readily, and also provide an elongated collar having an elongated receiving opening when th two parts of the guard are spread apart on their pivots M. The legs l3, therefore, provide means for an elongated opening to permit a handle guard I9 or a cable member to be inserted readily and quickly within the collar 9.

A clamping member 2| is provided for locking the two parts of the guard together, the same having operative engagement with the parts It and I! which constitute the supporting member IS. The clamping member 2! comprises a loop shaped wire member 22, which has the ends of its legs 23 bent and extending through holes 24 provided in ears 25 which are integral with the part l6 of the supporting member I5. The part 22 is bent, as indicated at 26, and is wound about itself, as indicated in the drawing, to provide oppositely disposed eyes 21, Fig. 2. These eyes 21 pivotally receive the legs 28 of a loop shaped member 29, which are adapted to receive a keeper 30 fixed to the part I! of the member 15. The clamping member 2| is so constructed and arranged that the mere movement of the loop member 22 will cause locking engagement to lock the two parts of the guard together, or to unlock the parts to permit the guard to be spread apart, no tools being needed to cause such attachment and detachment. The outer end of the member 29 is adapted to be held in locked position by the keeper 39. This keeper may comprise the upstanding notched members, as shown, or it may comprise any other suitable member fixed to the part [1 to receive the member 29.

Instead of providing the supporting member I 5, comprising the two parts I6 and I1, any other suitable member capable of accomplishing the result may be substituted. Moreover, instead of providing the ears 25 on the member l1, certain of the vertical wires 6 may be bent to provide eyes to receive the legs 23 of the part 22.

In actual use, the guard and its cooperating clamping member 2| is in the position shown in Fig. 1, with the member 29 in looking engagement with the keeper 3!). When it. is desired to unlock the guard 5, the part 22 of the clamping member 2| is moved upwardly to the respective position shown in Figs. 2 and 3. As the clamping part 22 is moved upwardly to the position shown in Fig. 2, the parts will be in unlocked position, except that the member 29 will still be in engagement with the keeper member 33. Continued pivotal movement of the member 22 will release the member 29 from the keeper 39, as shown in Fig. 3, at which time the member 29 is free to be completely disconnected or disassociated from the keeper 39. The two halves of the guard 5,.therefore, are free to be swung outwardly on the pivot points M, thereby providing ample room for the insertion or removal of a lamp globe, and if it is desired to place the guard on another handle l9, the two parts of the guard may be swung to a position whereby the two legs l3 of the clamping ring will be relatively parallel. The two parts of the guard, therefore, will be practically in a straight line, giving free and ample access to the globe and permitting replacement of the handle or detachment of the guard from the handle. When it is desired to reconnect and lock the parts together, the loop part 29 of the clamping member 2| is arranged so that the member 29 will be in engagement with the keeper 39, Fig. 2. When the clamping part 22 is pressed downwardly, the two parts of the guard will be drawn together, and the collar 9 will squeezingly engage the rubber of the handle guard 19 about the electric lamp socket. As the part 22 is moved to home position, as shown in Fig. 1, the eyes 2! will be below its pivotal connection where the legs 23 enter the openings 24 in the ears 25, causing a snap action and locking the clamp in position. Also, the two parts of the guard 5 will be drawn and locked together. Therefore, when the clamp is in its home or locked position, as shown in Fig. l, the clamp will be below its straight line locking position, and the pull is such that the clamping part 22 will lie against the body of the guard. When the clamp is opened, the part 22 is pulled upwardly beyond the straight line clamping action, therefore causing the part 22 to tend to snap upwardly, effecting unlocking of the device.

The invention provides a lamp guard which is provided with a clamping means. for permitting the guard to be unclamped and spread apart instantly so as to permit quick and easy insertion or removal of a lamp globe. Also, the clamping action permits the guard to be clamped in locked position by the mere manipulation of a pivotal clamping member. The clamping member is preferably made of two parts of wire material, as shown, preferably connected together. Each of the parts is bent to the proper shape or configuration to perform the function intended.

The guard is relatively inexpensive to manufacture, and it may be quickly and readily assembled. Moreover, the particular construction of the collar connecting the two parts of the guard together permits one-half of the guard to be spread a considerable distance from the other part, thereby providing plenty of room for changing a lamp globe. Moreover, the particular shape and construction of the collar, including the leg portion l3, permits the guard to be quickly ap plied to a handle guard l9, or allows the handle guard l9 to be quickly removed from position.

Changes may be made in the form, construction and arrangement of the parts without departing from the spirit of the invention, or sacrificing any of its advantages, and the right is hereby reserved to make all such changes as fairly fall within the scope of the following claims.

The invention is hereby claimed as follows:

1. A two-part lamp guard for removable attachment to a portable handle guard comprising, a pair of collar members shaped to engage about opposite sides of said handle guard with a spacing therebetween, a pair of resilient guard members attached to the respective collar members and. extending in a direction to enclose a lamp globe mounted in said handle guard, an inclined leg at each of the ends of each collar member extending angularly therefrom in a direction generally opposite to said guard members, means pivotally connecting adjacent legs together forming substantially V-shaped connections, said pivotal connections providing for the movement'of said legs and collar members into a position wherein they define an elongated handle guard receiving passage and wherein the remote free ends of said guard members are spaced apart to permit insertion and withdrawal of said lamp globe, said collar members moving towards and away from said handle guard upon movement of said guard members about said pivotal connections and being squeezed into clamping engagement with the handle guard by the action of drawing said remote free ends of said guard members towards each other, and means cooperating with the re mote free ends of said guard members for draw ing said ends towards each other to effect said clamping of said collar members around said handle guard.

2. A two-part lamp guard for removable attachment to a portable handle guard comprising, a pair of collar members shaped to engage about opposite sides of said handle guard with a spacing therebetween, a pair of resilient guard'mernbers attached to the respective collar members and extending in a direction to enclose a lamp globe mounted in said handle guard, cooperating inclined legs on the ends of said collar members extending angularly therefrom in a direction generally opposite to said guard members, means pivotally connecting adjacent legs together with the legs forming substantially V-shaped connections, said pivotal connection providing for spacing remote free ends of said guard members apart to permit insertion and withdrawal of said lamp globe, said collar members moving towards and away from said handle guard upon movement of said guard members and being squeezed into clamping engagement with the handle guard by the action of drawing said remote free ends of the flexible guard members towards each other, and leverage means pivotally mounted on the remote free end of one of said guard members and engagable with a part on the remote free end of the other guard member for drawing said ends towards each other to efiect said clamping of said collar members around said handle guard.

3. A two-part lamp guard for removable attachment to a handle guard and having curved ends capable of being spread apart to permit insertion or removal of a lamp globe comprising, a relatively circular collar on each lamp guard part shaped to extend around and clamp onto said handle guard, each of said collars being substantially less than a semi-circle to provide substantial spacing between both ends of the respective collars, a leg attached to each of the ends of each collar part and inclined to extend downwardly and inwardly with respect to the longitudinal axis of said lamp globe to meet in a substantially V-shaped connection, means independent of said handle guard pivotally connecting the ends of adjoining legs together, a clamping member fastened on one lamp guard part at the end of said guard remote from the collar, a keeper on the other lamp guard part cooperating with the clamp to lock the two parts together, said clamping member including a wire in the form of a loop having its ends pivotally connected to the one said lamp guard part, a second wire in the form of a loop having its ends pivotally connected to the first wire, said first mentioned loop being bent at said pivotal connection with said second loop to provide for lying closely adjacent the curved outer end of the lamp guard when in clamped position, and said last named loop being adapted to have engagement with said keeper, said clamp and keeper providing for drawing said lamp guard parts towards each other to reduce the opening of the collar parts and squeeze the collar parts into clamping engagement with the handle guard.

FRANCIS C. KOLLATH.