US1578219A - Lamp holder for miners' caps - Google Patents

Description

March 23 1926.

F. K. TovEY LAMP HOLDER FOR mums CAPS Filed New. l3

Patented Mar. 23, 1926.

i,5'7s,2 1a UNlTE stares PATENT orrice.

FRANK K. TOVEY, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO UNION CAP MANU- FACTURING COMPANY, OF PITTSBURGH, PENNSYLVANIA, A COPARTNERSHIP COM- POSED OF HIMSELF AND EDWARD J. EAGAN.

LAMP HOLDER FOR MINERS CAPS.

Application filed November 13, 1924. Serial 110,749,675.

To aZZ whom it may concern.

Be it known that I, FRANK K. TovnY, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Lamp Holders for Miners Caps, of which the following is a specification.

My invention relates to improvements in lamp brackets or holders for miners caps. It has for its object to provide means for supporting and positively holding the lamp in position on the usual standard Z-shaped frame in front of the cap, toprevent dis placement or loosening in various positions.

In the use of miners lamps, and especially with those utilizing acetylene, the weight of the lamp is apt to cause undesirable swinging, tilting, or displacement during the work of mining and the varying positions of the user. In my invention, I provide for attachment by its hook of a standard lamp on the usual front bracket in the ordinary way. The present improvement consists of an improved friction socket secured in such a position as to receive the point of the hook, and also to exert a certain degree of outward tension as the hook is inserted with resulting binding friction and prevention of lateral movement towards either side.

Referring to the drawings, showing a preferred embodiment of the invention;

Fig. 1 is perspective view of a miners cap provided with my invention:

Fig. 2 is a central vertical section through the front bracket, showing the lamp in place;

Fig. 3 is a plan view of the bracket;

F 4 is an upper front view of the bracket;

Fig. 5 is a vertical section on the line V V of Fig. 41., withoutthe supporting frame; and

Fig. 6 is a perspective detail view of the frictional retaining socket.

In the drawings, the usual. miners cap 2 is shown having the visor 3 with the standard lamp supporting frame or bracket 4. In the present case, this bracket is made of still sole leather shaped to form the middle front panel and the top and bottom oppositely extending attaching flange portions 5 and G, riveted to the cap and visor respectively; Secured by rivets around the upper front corner of frame 4 is the thin sheet metal angle plate 7,, the middle of which is formed into a rounded outwardly bulging rib 8 having the central slot 9.

Said slot is formed to just receive the hooked stem 10 of the lamp 11, and to snugly embrace it to prevent lateral movement. The shank of the hook bears against the face of the bracket immediately below the slot at the point 12, as shown in Fig. 5.

Ordinarily, the point'of the hook is merely inserted in a receiving hole 13 through the top of the frame 1 or through a separately attached metal plate secured on the top of the flange, having upper lateral confining flanges and a downwardlyextending tul ular socket. I in my invention, I form a friction socket pressed from sheet metal and riveted to the under side of the bracket, as shown. It consists of an upper fiat bearing and securing flange l l having terminal eyes 15, 15, for rivet connection with the under side of the upper flat portion 5 of frame 4.

The middle portion 16 of the friction socket extends downwardly and rearwardly from the flange 14, forming a groove 17 between the bent around sides or cheeks 18, 18, asin Fig. 6. The rearward and downward slope of the inner face of the groove and its cross sectional area conform approximately to thedirection and shape of the end portion of hooklO of the lamp. The socket is so located with relation to the front portion of angle plate 7 that when the hook is inserted in hole 13, its shank portion 19 will bear against the middle portion 12 as the terminal portion 20 enters the groove 17 of the friction socket. By reason of the relative location of the friction socket, it

exerts a slightly spreading resistance to the hook, tending to distend it as it is inserted, so th at it bears with binding friction against: the socket and also against plate 7 at 12. lVhen thus in position, as in Fig. 2, with the shank firmly in place in groove 9 of rib 8 and the hook terminal between the cheeks 18, the lamp will be positively held against accidental movement or removal. The efficiency of the device is due to the holding friction exerted by the socket against the resistance of the front bearing 12. with the lateral engagement with the sides of the hook in groove 9, hole 13, and between the cheeks 18.

By such construction, I avoid the necessity of using supplemental Wires or other holding devices on the body of the lamp, so that it is positively, continuously and safely held by the hook alone during the varying positions and strains of use, until removed.

What I claim is:

A supporting bracket for a miners lamp consisting of a bracket frame secured to the cap and visor respectively having a top flat portion provided With a hook hole, a for- Wardly bulging slotted front bearing plate, and. a rearwardly inclined open back grooved friction socket for the hook termi nal secured to the bracket frame below and in register with the hook hole. In testimony whereof I hereunto a'fliX my signature.

FRANK K. TOVEY.

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