Improvements in artificial limbs / [William Roberts].

  • Roberts, William.
Date:
1897
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in artificial limbs / [William Roberts]. Source: Wellcome Collection.

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    N 12,333 A.D. 1897 Date of Application, 18th May, 1897-Accepted, 3rd July, 1897 COMPLETE SPECIFICATION. Improvement in Artificial Limbs. Pl™outhIL]LnIA01pRrBERTfS’ f/arneSS Make,r> and Morgan Bevaj,> Agent, both of AmSka Ho Lrph Cr? y ?[. Luzerne’ and State of Pennsylvania, United States of America, do hereby declare the nature of this invention and in what manner the same following stetem“nt :’_ Partlc«l*rly described and ascertained in and by the 5 nr^jnaVnenti“n,haa -reIati<f. improvements in artificial limbs, and the object is to provide an artificial foot which shall be simple of construction, durable in use, and comparatively inexpensive of production. • ’ To this end the novelty consists in the construction, combination and arrangement 10 the d,aims6 33 ^ heremafter more ^Uy described and particularly pointed out in emb^4“myninvent1ring “ ‘ ,0nSitudinal section of a artificial pneumatic foot ^i;'fie3ent8 S°cket Wh‘ch receives the stu'np, and the lower end of said socket 15 1„ |T If b °°k 2’ aPPr°f mating in shape the upper portion of the human foot, T tn, neatly encompassed by the shoe 3, leaving a horizontal chamber between the bottom of the block and the insole of the shoe. 4 represents a pneumatic sole, which completely fills this chamber, and said sole is formed with an inflating tube 5, which passes up through the block 2, its outer end terminating at a suitable point above the upper edge of the shoe, where it is prouded with the usual socket connection and check valve, through the medium of bicyclethe pneUmatlc sole ls inflated similar to the pneumatic tire of the ordinary 6 represents a leaf spring, the vertical arm 7 of which is permanently fixed to the block, and its horizontal arm 8 extends along the inside of the shoe between the insole and the lower face of the pneumatic sole. This spring allows the foot to bend in the act of walking, and restores it to the natural position after it has been raised trom the ground. on now Particularly described and ascertained the nature of our said invention «3U and in what manner the same is to be performed, we declare that what we claim is :_ 1. An artificial leg or foot provided with a pneumatic tread, substantially as and for the purpose set forth. 2. An artificial foot, comprising the socket 1, the block 2 secured in the lower end lereof, m combination with the pneumatic sole 4, provided with an inflating tube 5 ^ extending vertically upward through said block 2, and the leaf spring 6 having its verticle arm 7 permanently fixed in said block, and its integral horizontal arm 8 extending around the heel portion of the block and pneumatic sole, and underneath and paiallel with said sole, substantially as shown and described. Dated this 18th day of May 1897. 40 WHEATLEY & MACKENZIE, 40 Chancery Lane, London, W.C., Agents. Kedhill; Printed for Her Majesty’s Stationery Office, by Malcomson & Co., Ltd.—1897 [Price 8d.~\