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Publication numberUS879360 A
Publication typeGrant
Publication dateFeb 18, 1908
Filing dateSep 9, 1907
Priority dateSep 9, 1907
Publication numberUS 879360 A, US 879360A, US-A-879360, US879360 A, US879360A
InventorsClaude M Broady
Original AssigneeClaude M Broady
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Artificial hand.
US 879360 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

No. 879,360. PATENTED FEB.18, 1908. O. M. BROADY.



1 is a view in elevation of my UNITED STATES PATENT onnron.



To all whom it may concern:

Be it known that'CLAUDE M. BROADY, a citizen of the .United States, residing at South Bend, in the county of St. Joseph and State of Indiana, has invented certain new and useful Improvements in Artificial Hands, of which'the following is a specification.

fy invention relates to improvements in arti cial hands, an object of the invention being to provide an artificial hand of extremely simple construction, which will resemble the human hand in eneral appearance and which can be readfiy manipulated to perform many of the functlons of the human hand.

With these and other objects in view the invention consists in certain novel features of construction and combinations and arran ements of parts as will be more fully herel after described and pointed out in the claims.

In, the accompanying drawings z-Fi ure improve artificial hand looking at the pa m portion, and Fig. 2 is a view in lon itudinal section through the thumb and index finger.

The reference character 1 represents the palm or body portion of the hand, which may be composed of wood or other suitable material, 2 represents the thumb, and 3, 4, 5, and 6 the fin ers respectively of the hand, the thumb and gers being composed of rubber or other elastic and flexible material.

In all of the fingers coiled springs 7 are embedded and secured in sockets 8 1n the hand by cement or other means.

The thumb 2 is made with a plunger 9 at its inner end having a reciprocatin movement in an elongatedsocket 10 in t e hand and a coiled spring 1 1 is located in said socket and exerts outward pressure. on the thumb.

A. rubber love or coverin 12 incloses and sun 1y fits t e fingers and tfiumb portion of the hand, and it will be observed the end of the thumb is slightly spaced from the hand to permit the desired reciprocating movement thereof, such open space being hid from view by the inclosingglove or covering 12.

A hook 13 is carried by the hand and preferably located between thethird and fourth fingers and this hook allows the lifting of eavy objects which could not be held by the thumb and fingers. i

The thumb 2 is immediately under the index positioned so that when pressure is exerted on the end of the index finger,

Specification of Letters Patent. Application filed September 9' 1907- SerialNo. 392.010-

not restrict 1n thumb having Patented Feb. 18, 1908.

the end of the thumb will be s aced thereobject. As the thumb as a yielding-inward movement, and the index finger a yielding u ward movement, the ban ex finger and a forward movement, at the same time, by the thumb, so as to cause small objects to become wedged and held therebetween and thus. enable the artificial hand to take the place of the human hand to a great extent.

great many slight changes might be made in the eneral form and arrangement of the several parts described without departing from my invention, and hence I do yself to the precise details set forth but consider myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of myinvention.

Hafi ing fully described my invention, what I claim as new and desire to secure by Letters Patent is L'An artificial hand, comprising a body portion, flexible fingers, a thumb, coiled springs connecting the fingers and body portron, and a covering inclosing the fingers and body ortion.

2. n artificial hand com rising a body portion and fingers elastica ly connected thereto, a thumb sprin pressed and movable longitudinally of the ody portion, and a flexible covering inclosing the fingers, thumb and body portion.

3. An artificial hand comprisin a body portion and fingers connected t eretogy a thumb, a plunger on said thumb having reciprocating mounting in a socket in the body portion, a spring in said socket exerting outward pressure on the thumb (plunger, and a coverin inclosing the space juncture between t e innenend of the thumb and the body. ortion.

4. in artificial hand, comprisin a rigid body portion, rubber fingers, coile connecting the fingers and body portion, a longitudinal movement in the body portion, and a glove or covering inclosmg said fingers, thumb and body portion.

In testimony whereof I afiix my signature,

in presence of two witnesses.


canbe so manipu ated by pressure on the ind springs

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2631295 *Jan 27, 1949Mar 17, 1953Becker Daniel BArtificial hand
US4984951 *Sep 22, 1989Jan 15, 1991The Board Of Trustees Of The Leland Stanford Junior UniversityMechanical prehensor
Cooperative ClassificationA61F2/588