US1193969A

US1193969A - clyde attngek

Info

Publication number: US1193969A
Authority: US
Publication date: 1916-08-08
Anticipated expiration: 1933-08-08

Description

ARTIFIcIAL apnic Specification-o1? Letter-silatent. J

Application led August 23, 1915. S`ae.ria1`1lo.47,902.A

To all wwm z't may concern.'

Be it known that I, CLYDE AUNGER, a citizen of the United States, residing in the c1ty and county of San Francisco and State of California,have invented a certain new and useful Improvement in Artificial Hands, of which lthe following is a specification. v

My invention relates to artificial hands wherein separable hooks matching with each other, are adapted to be partially ro tated. when the elbow is bentso as to bring the'hooks or an article held therein into proper position when the arm or hand is raised toward the mouth or head.

The present state of the art discloses various forms of artificial arms having movable lingers and rotatable hands thereon but it has been found from experience that the movable lingers are not convenient for picking up and holdingy table utensils, tools and the like and moreover are easily broken in lifting heavy objects. Persons who have had their arms amputated grow accustomed to the conspicuousness of their loss to such an extent that a serviceable device is preferred to one less convenient with a better appearance. j The object therefore of this invention, is 310 to provide a convenient and eicient device which is capable of the greatest number of uses and at the same time simple of construction and operation as well as cheap and lightin weight.

A stationary hook, while it answers the purpose of lifting and conveying heavy objects, is not'adapted for eating, brushing the hair or teeth, removing or replacing the hat and such objects, for the reason that an object such as a knife and fork, tooth brush,

comb or the like, would not be in proper position when-the elbow of the wearer' of the said hook was bent, but would extend from the stationary hook away from the head or mouth.

I propose tofprovide an improved artificial hand which is adapted for various uses, may be quickly and easily opened and closed and partially rotated by the natural bending of the elbow so as to simulate the turn? ing movement of the wrist as in raising food to the mouth. f I accomplish these features by means of the device disclosed in the drawings form-` i 5'5 ing a part of the Apresent specification,

wherein like characters of reference are used to designate similar parts throughout the said specification and` drawings, and in wh1ch f Figure 1 1s a broken vertical sectional view of the endl of a socket adapted to be fastened to the stump of an amputated arm,

disclosing the manner in which the several parts are arranged. Fig. 2 is a bottom view of the metallic cup removed from `the end of the socket. Fig. 3 is a top View of the me Patente@ aug. s, 1916.y

tallic cup with the hooks removed, and Fig.

4 is ,a view of the socket attached to the amputated arm.

Referring to the drawings, the numeral 1 is used to 'designate a socket adapted to be s.

fastened tothe stump of an amputated arm and having bular extension' 3 formed integral therewith 6 having a longitudinal squared aperture 7 a metallic cup 2 secured to the end thereof. The metallic cup 2 has a tuf ,75 within which is rotatably mounted the therethrough. A hook 8 is provided with a I square shank 9 adapted`Vv to engage the squared aperture 7, and having a reduced cylindrical groove 11 therein', adaptedto'bey engaged by va suitable latch. 12 lslidably I mounted upon the plate C andv having a cen- 1 f tral slot therein comprising a circular por.

tion 14 adapted to engage the reduced cylinu l drical portion or groove 11' of the square I shank 9 of the hook 8 and thereby retainsaid hook 8, and a substantially square portion y16 Vadapted to permit the passage ofi the said shank 9. A suitable spring` 31a? is larranged to normally retain the circular portion 14` over the end of the squaredaperture 'Z in* l. the plate 6. A suitable pin 18 is securedA to one end of the latch .12 and extends .through a slot 19 in the plate 6 andan arcuate slot- 21 having a lateral extension-22 therein, kin

the metallic cup 2, the purposel of which will hereinafter be more fully described. The socket l has metallic side bars 23 secured to one end tl1ereof;and pi-vlotally` mounted upon similar metallic Iside ,bars, 24 l securedto a fasteningmeans 2 6adapted to. l

be fastened to the arm `above the elbow.l

rlhe metallic side bars 24 have an arcuate eX-. tension 27 connecting the endsl thereof and passing around the elbow ofthe wearer.L ,I cord 28 has one end secured tothe extension;

27 at a point directly back ofthe elbow andy the other vendthereof extendsalong ythe back of the socket-l andthroughlan aperture'29,

therein,v and after passingy ovei-asuitable pulley 31 is secured to a pin 32 inthe plate 6 so that vwhen the elbowis bent to raise the socket 1 thefsaid cord 28 will pull upon the pm 32 and partially` rotatev the said plate 6 and the hook 8 detachably secured thereto. 'When lthe arm is extendedor returned to" a substantially straight position a suitable spring 33, secured to the plate 6 and to the inner surface of the metallic cup 2, normally returns or rotates the plate 6 and the hook 8 to a normal position. y

While the plate 6 and hook 8 detachably secured thereto are rotating, the pin 18 traverses the'arcuate slot 21`thereby locking the 'latch 12 and preventing the hook 8from being inadvertentlydetached from the plate 6 while the hook 8 is carrying an article,

'i so.

as the said hook can only be detached from the plate 6 by moving the pin 18 into the extension 22 of the slot 21 thereby causing the square portionl of the slot within said 'latch ,12, to coincide. with the end of the square aperture? when the square shank 9 of the hook may be withdrawn.

A secondhook 36 is provided with an arm 37 and is pivotally mounted upon the hook 8 as at 38. The hook 36 is adapted to match with the hook 8 and to normally closev thereon by means of. a suitable spring 39. A cord 41 has one end thereof secured tothe endxof the arm 37 and after passing through a suitable aperture v4 2 in the metallic cup 2a-nd a' suitable aperture 43 near the end v of the socket l, also passes through a suitable guide 43 secured to the metallic side ybars23 and has its other end fastened or secured to a shoulder'piece 44. The hook 36 is also provided with an extension 46 against vwhich an article secured between the

hooks

8 and 36 may be held and thereby further supported.

The device may be operated as follows: A certain pressure of certain shoulder muscles on the part of the wearer will tend to tighten the cord 41 which is also connected to the arm 37 of the hook 36 and cause the separation of the

hooks

36 and 8 for the purposel of grasping an article. When said pressure is released the spring 39 will close-the hooks '8 and 36 upon each other and thereby firmly grasp the article. If the article grasped should bea fork containing food to be carried to the mouthof the wearer, the

hooks

8 and 36 will be partially rotated substantially through an arc of 90 degrees thereby bringing the food into a ,position where it may be easily received 8 and 36 will be effectively secured against detachment by means lof the circular portion 14 of the latch 12 which engages the cylindrical groove 11.. on the shank 9 of the hook 8.

y .e V'jel From the foregoing it is obvious that I of the elbow. I have also'provided an improved artificial hand which is simple, cheap and durable in construction as well as 1noperation. I

I am aware lthat the present state of the art discloses' matching hooks adapted to be separated by a certaln pressureof certain shoulder muscles, therefore I do not wish to claim such a combination broadly as my invention butf What'I do claim and desire Letters'Patent is 1. An artificial hand comprising a socket adapted to be fastened onto the stump of an amputated arm; a hook detachably and rotatably mounted in and extending beyond the end of the socket; a second hook pivotally mounted upon the first mentioned hook and arranged to form a gripping means to secure by therewith; fastening means pivotally con-A,

nected tothe socket and ad'apted to be fastened to the arm above the elbow; and means operatively connected to the hooks and tol .the fastening means whereby said hooks may wearer is bent.

2. An artificial hand comprising a socket adapted to be fastened to the stump of an amputated arm; a plate rotatably mounted within the end of the socket; a ,hook detachably secured to the plate; a second hook pivotally mounted upon the 'first mentioned hook and arranged to form a gripping element therewith; fastening means pivotally connected to the socket and arrange'dto be secured to the arm above the elbow; means' operatively connected to the hooks and to the fasteningvv means whereby the said hooks may be partially rotated when the elbow of the wearer is bent; and means operatively connected to the plate and adapted to detachably secure the first mentioned hook thereto. l

3. An artificial hand comprising a socket adapted to be fastened to the stump of an amputated arm; a plate rotatably mounted within the end of a socket; a hook detachably secured to the plate; a second hook pivotally mounted upon the first mentioned hook and arranged to form a gripping element therewith; fastening means pivotally connected to the socket and arranged to be secured to the arm above the elbow; means operatively connected to the hooks and to the fastening means whereby the said hooks nected to the plate and adapted to detach' ably secure the first mentioned hook; and means operatively connected tothe socket and to the plate and adapted to normally rev turn said plate and the hooks detachably securedthereto to a normal position when the elbow and arm of the wearer is straightened.

4. Ann artificial hand. comprising a socket l adapted to .be secured to''the stump of an amputated arm; fastening means pivotally connected to the socket and adapted to secure the same to the arm; a plate rotatably mounted within the end o f the socket; a hook detachably securedto the plate; a second hook having lan arm thereon and pivotally mounted 'uponv the first mentioned hook and matching therewith; asuitable spring adapted to normally close the hooks together; a cord fastened to the arm of the second mentioned hook and to the shoulder of the wearer whereby the hooks may be separated; a second, cord secured to the rotatable plate and to the fastening means of the socket and adapted to partially rotate the hooks when the elbow is bent; and means adapted to return the plate and hooks secured thereto to a normal position when the arm is extended.

,5. An artificial hand comprising a socket adapted to be secured to the stump of an amputated arm; fastening means pivotally connected to the socket and adapted to se cure the same to the arm; a plate rotatably mounted within the end of the socket; a hook detachably secured to the plate; a second hook having an arm thereon and pivotally mounted upon the first mentioned hook and matching therewith; a suitable spring adapted to normally close the hooks together; a cord fastened to the arm of the second mentioned hook and to the shoulder of the wearer whereby the hooks may be separated; a second cord secured to the rotatable plate and to the fastening means of the socket and adapted to partially rotate the hooks when the elbow is bent; and a suitable spring .operatively connected to the rotatable plate and to the socket and adapted to normally retain the said plate in a normal position.

6. An artificial hand cou'iprising a socket adapted to be fastened to the stump of Van amputated arm; fastening means pivotally mentioned hook an suitable spring'adapted to normally close the,

v adapted to and the hoo is when the elbow is bent; and

a suitable 'spring adapted to normally return connected to the socket and adapted to fasten the same to a`n arm; a metallic cup rigidly secured tothe end of the socket and having a tubular extension thereto; a plate' having a sleeve rotatably mounted within the tubu- A lar extension and' a' squared longitudinal aperture through said sleeve and late; a hook 'havin a square shank mounted within the square4 aperture; vmeans adapted tordetachably secure the square shank within the said aperture; .a second hook havingv an arm thereon and pivotally mounted upon the first matching therewith; a

hooks; a cord secured to the arm onthe sec-v ond .hook and to shoulderof the wearerwhereby the hooks may be separated; a second cord secured to the rotatable plate and to the fastening means of the socket and a-rtially `rotate the said plate the plate and v hooks thereon to anormal position when the arm is extended.

7. An artificial hand comprising a socket adapted to be fastened to the stump of an amputated arm; fastening means pivotally connected to the socket and adapted to fasten the same to an arm; a metallic cup rigidly secured to the end of the socket and having a tubular extension thereto; a plate having a sleeve rotatably mounted within the tubular extension and a squared longitudinal aperture through said sleeve and plate; a hook having a square shank mount ed within the squared aperture; a-fsuitable latch adapted to detachably secure `the square shank within the said aperture; a second hook having an arm thereon 'and pivotally mounted upon and matching with the first mentioned hook; a suitable spring adapted to normally close the hooks; a cord secured to the arm on the second hook and to the shoulder of the wearer whereby the hooks may be separated; a second cord secured to the rotatable plate and to the fastening means of the socket and yadapted to partially rotate the said plate and the hooks whenthe elbow is bent; and a suitable spring adapted to-normally return the plate and hooksthereon to a normal position when the arm is extended.

In witness whereof I hereunto set my signature.

oLYDE AUNGEi.