US26378A - selpho and james walbbe - Google Patents

Description

No, 26,378. PATEN'IED DEC. 6, 1859.

.W. SELPHO & J. WALBER. ARTIFICIAL ARM AND HAND.

"wherein-;-. i t a, i Figure 1 is a side view of our hand as in use. Fig. 2 shows the back of the hand, and Fig.3

UNITED STATES no a ti t PATEN,TOFFICE' WM. SELPHO AND JAMES WALBER,OF new ronx ntyr 1 IMPROVEMENT IN ARTIFIQIAL ANDS;

Specification forming part of Letters Patent No. 26,378, dated December 6, J

"certain new anduseful Improvements in Artificial Hands; and we do hereby declare that wthe tcllowing is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making part of this specification,

isa section of the hand and wrist.

p Similar marks of reference indicate the same parts. a r i t i p p t The nature of our said invention consists,

first, in arranging a double purchase for opening the fingers and hand from a motion derived from'thesho'ulder of the other arm through the medium of a strap; second, in

constructing the wrist-joint so that it can be tightened when required, and also the springconnecuon through said wrist-joint; third, in

applying a connection to the wrist in suchfa manner thatthe hand receives a turning motion as thearm is raised similartothatof the natural -hand upon raising up foodtothe mouth, thus giving a person greater facility than with those artificial hands heretoforeconstructem In thedrawings, ai s the socket, adapted to reecivetheiorearm'.

b is the hand, ant c the thumb. a

. y d d are the fingers, attached to the f which is sustained in eyes 5 on the hand so that ali'inited motion is allowed to the fin- .gegs, which all move together on and with this re 1. i

c is the thumb on the joint 2, at which point a compound motion can be given to'said thumb. It can be turned toward or moved from the fingers on the joint 2, and can also be, moved ona rule-joint back, as in Fig. 2, or turned in against the inucrparts of the finget s. i

e is a crank-arm from the joint 2, andfisa link to the short crank '2 en the rod 1, so that when the fingers d are opened the thumb a 15 alsd life'like appearance to theihandr socket, g' at the wend t of the orearni g Th around the shoulder of thetothertarm,( the patent of-W. Sel'pho, August,18,14557, that a doublepurchase is given by the they pulley n in: opening the hand; I 1

q is a double sheave, attached tQthQ-ffllfl a near the wrist, thro f ghiwhichga 1 catgut, p passes and is attachednto thehaud at7 r is an elbow-pad"formedlofiafptece f1 and? leather or simiiar material, e rtendetllhp strapped aroundwtheshoulders Itwill heap parent, thereforepthat as thefo arm is the padr willfkeepthe ends, f p stafltionary the wrist, which wou dx urniajtct manner. There ers movementma e gi by a spring or otherwise, esythegar tended. Wehoweverpreferanduethec t that is 'attachedto the hand at S andi W through sheave q in flthe reyerse,direction the cord p,- and 9 is an eyeguidiug fsaidcord; to the strap t around tbefarni, whichgiye's the; reverse motion to the hand bydetainingthei 3 cord 8 as the forearmis extended;

Having thus described our said injvenjtio'n, 1 what we claim as new, and desire to secure by Letters Patent,is-

v 1. The arrangement of the cords or catgldts moved away from lithe fingeragifing a f g'isthe wrist, formedias aqba'll ientering ta W shed w h imid k fithe hand to the pulley a;anaes he ic, ,orgut; a a h t Pas in arq i dfl efu lly g through the eye,;whence ;1itjis\ledto a. at u m and 0 and the pulley n, as set forth, for ap plying a double pilrehasein open ng the hand,

} In witness whereotf we have hereunto setour signaturesvthis 25th dayof Ju1y,;18 59..

WILLIAM SELPHO. JAMES WALBER.

Witnesses:

THOS. GEO. HAROLD, CHAS. H. SMITH.

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