US615299A - Artificial limb - Google Patents

Description

No. 6|5,299. Patented Dec. 6, I898.

. F. v. MQPARLIN.

ARTIFICIAL LIMB.

(Application filed Apr. 12. 1698.)

(No Model.) 2 Shear-Sheet n.

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No. 65,299.v Patented Dec. 6. i898.

F. V. MGPARLIN.

ARTIFICIAL LIMB.

(Application filed Apr. 12. 1898.) v (No Model.) 2 Shaets-$heet 2.

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UNITED STATES PATENT OFFICE.

FRANCIS VINCENT MCPARLIN, OF CHICAGO, ILLINOIS.

ARTIFICIAL LIMB.

SPECIFICATION forming part of Letters Patent No. 615,299, dated December 6, 1898.

Application filed April 12, 1898. Serial No. 677,310. (No model.)

To ctZZ whom it may concern.-

Be it known that I, FRANCIS VINCENT Mo- PARLIN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Artificial Limbs; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in artificial limbs, and more particularly to that class of devices used by persons who are affiicted with talipes equinus; and the object is to provide a simple and effective device of this character to relieve and cure the deformity and enable the person to assume a natural gait.

To this end the invention consists in the construction, combination, and arrangement of the device, as will be hereinafter more fully described, and particularly pointed out in the claims.

The accompanying drawings show my invention in the best form now known to me;

but many changes in the details might be made within the skill of a good mechanic without departing from the spirit of my invention as set forth in the claims at the end of this specification.

The same reference characters indicate the same parts of the invention in the several views.

Figure 1 is a perspective View of my improved artificial foot. Fig. 2 is a bottom plan view. Fig. 3 is a detail View. Fig. i is a perspective view of the insole removed from the foot. Fig. 5 is a perspective View, partly in section, of the device as applied to an artificial limb.

1 denotes the elastic toe-form, and 2 the sheet-metal heel, which is connected at its forward end to said toe-form.

3 represents the sheet-metal instep, formed with lateral slotted ears, by means of which it is adj ustably secured by the screws 4. to the forward extension of the heel 2.

5 denotes the rear section of the bottom sole, which is preferably formed of aluminium on account of its extreme lightness, and it is secured to the heel-piece by the screws'G 6.

7 denotes the forward section of the lower screws 10 10 extend into the rear section 5, so

that the form may be adjusted longitudinally to snugly fit different-sized shoes.

12 denotes the upper sole for the foot to rest upon, and it is made of asingle piece of metal, being curved to conform to the shape of the foot, the forward end 13 being turned upward and rearward to form a socket for the toes to rest in.

14: 14 denote slotted overlapping braces or stays adj ustably secured transversely across the bottom of the sole 12 by means of the screws 15, and their outer ends are turned at a right angle to form the lugs 16 16, which are also slotted to receive the screws 17, by means of which said sole is adj ustably secured to the sheet-metal heel 2, so that it may be adjusted as a whole with reference to the heel-piece or the center or ends or either end adjusted independently to exactly conform to the inclination or angle of the talipes, the sole 12, being formed of a fine grade of springsteel, readily permitting of this adjustment.

18 represents the sheet-metal ankle-brace and counter for the heel, its lower end being formed with vertical parallel slots 19 19 to receive the screws 20, by means of which it is adj ustably secured to the heel 2 to insure ease and comfort for the foot.

Referring to Fig. 5, 1 is the elastic toe-form; 2, the heel; 21, a double concave elastic disk or block, and 22 the artificial limb.

23 23 denote the ankle-springs, formed at their lower ends with an eye 24 to receive the screw 25, by means of which they are secured to the heel 2, and their upper ends are formed with a rectangular hook 26, terminating in a button or disk 27, by means of which they are adjustably held in place in the vertical slots 28 28 in the extension-limb 22, so as to approximate the human ankle in the operation of walking. This limb 22 is made the proper length and the extension-footfitted to its upper end, so as to receive the deformed foot, as in the first instance.

Having thus fully described my invention,

What I claim as new and useful, and desire to secure by Letters Patent of the United States, 1s

1. An extension-foot for the treatment of talipes equinus, comprising the elastic toeform 1, the sheet-metal heel 2, the lower sole 5 7, adjustably connected together and removably secured to said toe and heel, the instep 3 and the sole 12 adiustablv secured to said heel 2, substantially as shown and described.

2. The elastic toe-form 1 and the sheetmetal heel 2 adjustably secured thereto in combination with the sheet-metal instep 3,

the upper sole 1.? and the sheet-metal ankle brace 18 adj ustably secured to said heel, the bottom-sole section 5 removably secured to said heel and the forward section 7 adjust ably secured to said rear section 5, substantially as shown and described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

FRANCIS VINCENT MGPARLIN.

Witnesses:

GEo. N. FULLER, OSCAR S. STEWARD.

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