US2233053A - Miner's lamp holder - Google Patents

Description

J. H. HART MINERS LAMP HOLDER Feb. 25, "1941.

Filed April 5, 1940 Patented Feb. 25, 1941 John Homer Hart,'fFall Creek, 0010.

Application April 3, 1940, Serial No. 327,727 l 3 Claims.

This invention relates to miners lamp holders, commonly termed lamp sticks, adapted to be worn on miners caps but being capable of detachment therefrom and suspended from awall or set down upon a floor so as to best'illuminate the space in which the miner is working.

An important object of the invention is to provide a lampholder including a base having three legs adapted to engage the surface of a wall or a fioor and provide three-point support for the lamp, one of the legs being pointed so as to hook into a crack or over a ledge of the wall of a mine and suspend the lamp in vertical position.

Another object of the invention is to provide a lampholder capable of use with various sizes of lamps and permitting ready attachmentand detachment of the lamps.

Still another object of my invention is to provide in a lamp holder of the above character, a spring clamp for yieldingly retaining a miners pick, or stick-er in a convenient out-of-the-way position.

Another object of my invention is to provide a lamp holder of the above character which is simple and rugged in construction and which may be manufactured at relatively small cost.

Other objects and advantages will be apparent from the following detailed description of a preferred embodiment of the invention, reference being had to the annexed sheet of drawings in which:

Figure l is a perspective view of a lamp holder, the lamp supported thereby being shown in phantom outline;

Figure 2 is .a plan View of the holder viewed from its rear or wall engaging side; and

Figure 3 is a cross-sectional view through the holder on the line 3-3 of Fig. 2, showing the telescoped position of the parts of the sticker clamp when the sticker is removed therefrom.

Referring to the miners lamp holder illustrated in Fig.- 1, this holder comprises a narrow base member I having one end extended to form a vertical leg la and its other end provided with bers 20. being slightly smaller than the otherclamping member 2 so as tohave a telescopic fit therewith. A coil spring 3a encircles the pin and bears at one end against the clamping member 2a and at its other end againstalamp-engaging yoke 4. The opposite side Walls of the clamping members 2 and 2a are cut awayso as to permit a sticker 5 to be laterallyintroduced between andfrictionally held by the clamping members.

The sticker, as illustrated in Figs. 1 and 2,

comprises a relatively long slender pick which tapers throughout its length to a pointat one end and which, at its otherend, is provided with a looped handle 5a. By sliding the sticker between the clamping members, the latter are spread apart against the action of the coil spring 3, and the clamping members serve to impositively retain the sticker in place.

The yoke 4 is made of sheet metal and come prises a plate 4a from the opposite sides of which extend curved arms 41) designed to partially encircle the barrel of a miners carbide lamp 6. To the free ends of the arms is attached an extensible cord 1, such as a coil spring, adapted to surround the circumferential portion of the lamp not encompassed by the arms 4b. The ends of the cord are provided with rings 8 adapted to be engaged with pins 9 on the free ends of the arms 4b. A nut l0 rotatably mounted upon the screw threaded end of bolt 3 provides an abutment against which the plate 4a is yieldingly held by the force of the coil spring 3a.

The utility and mode of use of the miners lamp holder described above will be readily apparent. While normally adapted to be worn upon a miners cap, the three-point support provided by the legs la and lb permits the lamp to be either suspended on a wall or rested upon a floor without any tendency of the lamp holder to either tilt or tip over. The hook lc also allows the miner to suspend the lamp from a crack or ledge upon the mine wall. The clamp 4 provides means for retaining the sticker in out-of-the-way position but always within convenient grasp of the miner.

The sticker is very useful when laying track or timbering. By jabbing the pointed end of the sticker which projects from the clamp into a tie or timber, the lamp can be focused wherever light is needed. The sticker is also useful to clean plugged hollow drill steel. By simply re-.

versing the position of the sticker within the clamp, the holder may be adapted to either a right-handed or a left-handed person.

The holder has the further advantage of belamps may be readily detached from the holder,-.

as is frequently necessary, by simply disengaging one or, both of the rings 8 from the pins 9 of the yoke, or alternatively by simply stretching the band to permit vertical Withdrawal of the lamp from the yoke.

Manifestly various changes in arrangement and design may be made in the embodiment of my invention described above without departing from the spirit of my invention.

I claim:

1. A miners lamp holder comprising a yoke having a pair of arms for partially encircling the circumference of a lamp, an expansible member extending between the arms and for encircling the remaining portion of the circumference of the lamp, a base member having a plurality of angularly disposed legs providing three-point support for the base against a vertical or horizontal surface, a post extending between the base and the yoke and a coil spring encircling the post and exerting a thrust between the base and the yoke to yieldingly maintain the base and yoke in spaced relation.

2. A miners lamp holder comprising a yoke having a pair of resilient arms for partially encircling the circumference of a lamp, a member extending between the arms and for encircling the remaining portion of the circumference of the lamp, a base for supporting the lamp, a post extending between the base and. the yoke, a pair of clamping members supported on the post for movement toward and from each other, and spring means for urging said clamping members together, said clamping members together cooperating to form a socket for laterally receiving and frictionally retaining a miners pick therein.

'3. A miner's lamp holder comprising a yoke having;a .pair of resilient arms for partially encircling the circumference of a lamp, an expansible member extending between the arms and for encircling the remaining portion of the circumference of the lamp, a base for firmly supporting the lamp against either a vertical or horizontal surface, la bolt extending through openings in the base and the yoke, a pair of clamping members mounted on the post, said clamping members being arranged for telescopic movement one Within the other and their clamping faces being cut away to provide a socket for laterally receiving a miners pick therein, a coil spring encircling the bolt and exerting a thrust between one of the clamping members and the yoke for forcing the clamping members together, to frictionally retain the pick therebetween, and a nut threadedly mounted upon the bolt and serving as a stop for limiting movement of the yoke along the bolt under the urge of the coil spring.

JOHN HOMER HART.

Images