US835428A

US835428A - Artificial leg.

Info

Publication number: US835428A
Application number: US32084206A
Authority: US
Inventors: James Hogan
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-06-08
Filing date: 1906-06-08
Publication date: 1906-11-06
Anticipated expiration: 1923-11-06

Description

No. 885,428. PATENTBD Nov. 8, 1908.

J. HOGAN. ARTIFIGIAL LBG. APPLICATION FILBD JUNEB. 1906. I

`2 suma-81mm z.

UNITED s'rA'rEs PATENT oirhuon.X

JAMES HOGAN, OF EMISON, INDIANA, ASSIGNOR OF ONE-HALE TO JOHN W. HOGAN, OF EMISON, INDIANA.

ARTIFIC IAL LEG- Specfication of Letters Patent.

Application filed June 8, 1906. Serial No. 320.842.

To aZ whom, it may concern:

Be it known that I, J AMEs HOGAN, a citizen Vof the United States, residn at Emison, in

the county of Knox, State o Indiana, have invented certain new and useful improve- 'ments in Artificial Legs; and I do hereby declare the following to be a full, clear, and

veXact description of the invention, such as 'will enable others skilled in the art to which it appertains to make and use the same.

i This invention relates to artificial limbs;`

and it consists in the novel construction, combmation and arrangement of parts as herelnafter fully described, and shown in the accompanying drawings, in which- Figure 1 is a front elevation of an artificial leg constructed in accordance with this invention. same.` Flg. 3 1s a-vertlcal central sectlon .taken approximately on the line 3 3 of Fig. 1.

- Fig. 4 is a bottom view of the foot-body With 'member of the front` and 'back laces.

posed between each of said members is a lat-l the upperleg-section, 1 1 the lower leg-section,

and 12 the vfoot-body. Each section is preferably formed of leather and is lined or paddedl on the inner face thereof with felt or 'other soft material. The upper leg-section is provided with the usual front lacing 13, while 'the lower leg-section has a similar front lacing 14 as well as a back lacing 15.

The upper section 10 is provided on opposite sides with a strap 16, carrying an eye 17,

adapted to retain a strap 18 for a purpose hereinafter described.

It will be noted from Figs. 1 and 2 that the i lowerleg-section vmay be regarded as consisting of a pair of. side' -pieces, of leather, each of which carries adjacent its side edges one eral leg-iron 19, the upper end of each of which is provided with an eye 20. The straps'lS, connected to the upper leg-section, as above stated, are passed through the' leg-iron eyesV and thel two vleg-sections are thus connected together, the straps being provided at their respective ends with'the usual buckle andi tongue construction.

The lower edge of the upper leg-section is Fig. 2 is a side elevation of the Discurved, as shown in Fig. 3, to allow a limited play of said leg-section upon the lower legsection when the device is in use.

It will be noted from Fig. 6 that the lining or padding of the lower leg-section eXtends, approximately, only sli htly beyond the center thereof and that a race-block 21 is carried by the lower portion of said leg-section 1n the interior thereof, said block being retained in place by bolts 23, passing through said block and the oppositely-disposed leg-lrons. The lower leg-section is further strengthened and braced by means of a strap 23, held in place upon the upper portion thereof by A means of the strap 18, through which it passes.

Block 21, as shown, is recessed and is provided with a grooved wheel 24, journaled on a rod extending across said recess. Said block is likewise provided With a bolt 2'5 movable in a second recess therein and having a lower eye portion 26 and an upper head 27 `The foot-body 12, which is of the ushhl Shape and formed of Wood, is provided with a recess formed on the lower face thereof and extending practically as far as What may bei of said foot-body and provided with eyes through which rod 29 passes. The under face of said toe portion has attached thereto a small plate 32, provided with Shoulders 33 in which a rod 34 is journaled, said rod being embraced by the eye of the central bolt 31, the rear end of said bolt31 carrying a nut 35, against which a coil-spring 36, embracing said bolt, bears, the other end of said spring bearing against a shoulder'formed in the interior of said foot-body. Toe portion 28 will thus be seen to have a limited. movement upwardly or downwardly, and its drop or down- .Ward movement may be regarded as limited by the coil-spring on the central bolt 31, the

IOO

vtension of which may be adjusted by means of the nut carried on said bolt. i

As seen in Fig. 2, the lower end of each legiron is bent inwardly against' the under face of the brace-block 21 and thence downthe lower leg-section and to adjust the drop of the former with reference to its pivotal connection with the latter, there is provided a cord 40, of rawhide or other suitable matei rial, which passes over the grooved wheel 24 in the brace-block, through the recesses therein, and through the recess in the foot-2 body, one end of said cord being passed; around a rod 41, carried on said foot-body: and extending across the forward portion of i the recess therein. while the other end of said cord passes around a similar rod 42 at the; heel of the foot-body. The cord ends are then tied or attached together in any other` 'mannen Cord 44 is also connected with the eye of; bolt 25, said bolt being embraced by a coil-2 spring 43, bearing at its upper end against the head 27 of said bolt and at its lower end against the bottom of the bolt-recess.

When in use, the ankle-joint between the'` foot-body'and the-lower leg-section 'will perr mit the usual up-and-down movement of the former in walking, owing to the pivotal connection between the two; but by reason of the connection of cord 44 with the springpressed bolt 25 the foot-body will always be` returned to its normal or horizontal position.

By loosening or tightening the ends of the: cord the drop or play of the entire foot-body, can be correspondingly increased or dimin-` ished within the limits of the movement of bolt 25 in its recess, which movernent may in' turn be adjusted by connecting the supple-` mental cord 44, connected to the eye of bolt v25 and passing parallel with the outstretch of cord 40 through the slot in the foot-body,

its lower end being tied or fastened to rod 42 at the heel end thereof. Obviously, there-`` fore, by drawing down upon cord 44 the downi Ward movement of bolt 25 is' shortened and;

'the' tension of spring 43 is increased, while the reverse is'effected by looseningor letting 'out of said cord. V

The pivot-body is provided with the. usual curved leather strap 45, located at therjoint 'between the -toe-section and the foot-body,

which serves to prevent dust or dirt fromentering said joint, and, further, in a way limits the play 'of said toe-section. i i

A leatherv vsole 46 of the usual description` is attached to the under face of the foot-body by means of screws or in any other fashion.

Obvious modifications and changes may be made within the scope of the claims and without departing from the spirit of the invention, which is therefore not intended to be limited to the exact construction, shown and desoribed. i

What is claimed isi i i; 1. An artificial leg comprising in combina-f tion an upper leg-section and a lower leg-section connected together, each of said leg-sec-i tions' being provided with lacings, and with'` an inner padding extending around the inner surface thereof; a leg-iron attached to each side of said lower leg-section, and. having its lower end disposed against the under vface thereof, and thence bentl downwardly;a'nda jointed foot-body connected to said lower leg-section, and provided with a recess toreceive the downwardly-bent ends of said legirons, and with a bolt passing. through said recess and. said ends.

2. An artificial leg comprising a padded lower leg-section provided with front vand rear lacings; a pair of leg-irons attached to i opposite sides of said leg-section; the upper end of each leg-iron being provided withv an eye and the lower end being bent inwardly against the under face of said leg-section and thence downwardly; a padded upper laced leg-section provided with a pair of voppositely-disposed side, straps adapt'ed to be retainedin said eyes'to connect said leg-sec'- tions; and a jointed foot-body connected to said lower leg-section,` and provided with a recess to receive the downwardly-bent ends of 'said leg-irons, and with a bolt passing through said recess and said ends.

3. An artificial leg comprising a leg-section provided with padding extending around -the r o 5 inner surface thereof; -a pair of-leg-irons disposed on opposite sides of said leg-section; a recessed brace-blockA carried on the .interior of said leg-section; bolts passing through said leg-irons and block; the lower ends of said leg-irons being bent inwardly against the under face of said block, and thence' downwardly; a foot-body provided with a recess-in w `which said downwardly-projecting ends are received and 'with a bolt passing throughsaid recess and ends;.awheel 'journaled in therecess in said block; avspring-pressed bolt'movable in said block; and a cord'ipassing `over said wheel and connected-with said bolt and having its ends attached to said foot-body to y; j

` Witnesses: f

ROY R.fGoDwIN,: z B. E. CLARKE. i 1 i JAMEs HoGAN