US1157314A - Crutch. - Google Patents

Description

E. P. LE COMPTE & R. COLVIN.

CRUTCH.

APPLICATION FILED APR. 4, 1914. 1,157,314. Patented 0ct.19,1915

F; 14 F F 1 4 Fr m W- SHOT/140,16

COLUMBIA PLANOGRAPH cu., WASHINGTON. u. c

EDWARD Ritz: QQMPTE A ND'RU IN COLVIN, or rant; C IIY,.UTAH.

Specification of Letters QBatent.

Patented oat. 19,1915,

Application filed April 4, 1914. Serial No. 829,531.

To all whom it may concern:

Be it known that we, 'EDWARD P. LE CoMrTE and .RUBIN CoLvIN, citizens of the United States,-residi ng ,atPark City,in'the county of Summit and State of Utah, have invented certain new and useful Improvements in Crutches, of which the following is a specification.

()ur invention relates to improvements in crutches, and has particular reference to 21 crutchformed of a preferably metallic tube or pipe, split longitudinally to provide spaced arms, which carry the arm rest.

An important object of the inventionis to provide reliable and simple means where-' by the crutch may be longitudinally adjusted in a quick and convenient manner.

A further object of the invention is to provide means whereby the hand grip may be quickly and conveniently vertically adjusted.

A further object of the invention is'to provide means whereby the arm rest may be readily separated from the arms of the standard or body portion of the crutch.

A further ob ect of the invention is to provide means whereby the hand grip and the foot rod of the crutch may be simultane- ,ously vertically adjusted.

A further object of the invention is to provide means of the above-mentioned character, which are simple in construction, inexpensive to manufacture, strong, and durable.

Other objects and advantages of this invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to desginate like parts throughout the same :Figure 1 is a side elevation of a crutch embodying our invention; Fio'. 2 is a plan view of the same; Fig. 3 is a horizontal section taken on line 33 of Fig. 1; Fig. 4 is a side view of a crutch embodying a modified'form of my invention. Fig. 5 is a detail longitudinal section through a portion thereof, showing the means to lock the hand grip in place; Fig. 6 is a side elevation ofa crutch embodying a still different form of our invention; and Fig. 7 is a detail section through the lower end of the same.

In the drawings wherein is illustrated preferred embodiments of our invention, each crutch isshown as formed of a prefer ably metal tube or pipe, split longitudinally for the greater portion of itslength, providing upper spaced arms 10, carrying at their lower ends a foot-tube .11, as shown. The. arms 10 are curved orsemi-cylindrical in cross-section, whereby they possess the desired degree of stiffness.

In each crutch, the upper ends of the arms 10, are (see Fig. 2) provided with headed bolts 12, to operate within key-hole openings 13, formed through the opposite ends of an arm-rest 14, as shown. These have their large ends arranged innermost, and are provided with enlarged upper grooves 14, in registration with the inner large portions of the openings 13, as shown. It is thus seen that the arm-rest 14 may be securedto the arms 10 keyfhole openings 13 by bending the upper ends thereof inwardly,

so that the headed bolts 12 may pass through the large inner ends of the key-hole openings 13, the arms being released whereby the headed bolts will pass into the outer small portions of the openings 13, with their heads in the grooves 14, flush with the outer surface of the arm-rest 14.

In the forms of the invention shown in Figs. land 6, the numeral 15 designates a hand grip, provided at its ends with right and left screw-threaded extensions 16, adapted to engage in a selected one of the pairs of screw-threaded openings 17 which are arranged in spaced superposed relation, as shown. From the'foregoing, it is obvious, that after the arm rest 14 has been removed from the arms 10, the hand grip 15 (in Figs. 1 and 6) may be readily removed to be vertically adjusted, by first turning the same in the proper direction.

In Fig. 1, the foot-tube 11 has its bore internally screw-threaded, to receive a screwthreaded foot-rod 18, provided at its lower end with a shock absorbing foot 19, preferably formed of rubber, as shown. It is ob vious that the crutch in Fig. 1 is longitudinally adjusted by turning the foot-rod 18.

v In Fig. 6, the foot-tube 11 has a smooth bore receiving a smooth foot-rod 20, which is longitudinally adjustable therein, and provided at its lower end with a foot 21, preferably formed of rubber. To clamp the foot-rod 20 in adjustment in the foot-tube 11, in Fig. 11,, such foot-tube is provided with a longitudinal groove 22, adjacent which are cars 23, having screw-threaded apertures 24. A thumb bolt.- 24 passes ed'with a hand through these apertured ears, to contract or, expand the tube 11, to clamp or release the foot-rod 20, as the case may be.

In Figs. 4 and 5 the numeral 25 desig! nates a longitudinally adjustable rod, the

lower end of. which serves as a foot-rod, and

is longitudinally movably mounted in the foot-tube 11, (in Fig. 4) having a smooth In view of the foregoing it is thought that no :further explanation of the invention is necessary.

" It is to be understood that the forms of our invention are'to be taken as preferred examples of the same,

changes in'the shape,size, and arrangement of parts may be resorted to, without departing from the spirit of the invention and V the scope of the'subjoined claims.

The upper end of the rod 25 extends with relation thereto.

and that various I Having described theinvention what we of spaced armsprovided attheir upper ends withheaded studs, and an arm-restprovided near its ends with key-hole openings to 're ceive the'headed studs. 7 g c 2. A crutch of the character described,

comprising a longitudinally split metallic tube forming a lower 'tubularrportion and upwardly extending spaced hollow arms having their 'concavei'surfa'ces arranged innermost, a foot element extending into the lower tubular portion, an arm rest arranged adjacent the upper ends of the spaced arms,

means detachably connecting said arms and.

arm rest and adapted to disconnect them upon the inward movement of said arms toward each other, and a'hand grip arranged beneath the arm rest with its ends extending into the concave surfaces of said arms to be held thereby against lateral displacement In testimony'whereof we affix our signa tures inixpresence of two witnesses.

EDWARD P. LE RUBIN COLVIN' Witnesses:

HENRY SHIELDs,

WIILIAM Tanvlrniox.

Copies of this 'patent may be obtained for five cents each, by addressing 'the Commissioner of mam.

Washington, D. G. i

COMPTE.

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