US1421322A - Working claw for hand or arm amputated persons - Google Patents
Working claw for hand or arm amputated persons Download PDFInfo
- Publication number
- US1421322A US1421322A US402477A US40247720A US1421322A US 1421322 A US1421322 A US 1421322A US 402477 A US402477 A US 402477A US 40247720 A US40247720 A US 40247720A US 1421322 A US1421322 A US 1421322A
- Authority
- US
- United States
- Prior art keywords
- claw
- hand
- arm
- persons
- working claw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/54—Artificial arms or hands or parts thereof
- A61F2/58—Elbows; Wrists ; Other joints; Hands
- A61F2/583—Hands; Wrist joints
- A61F2/588—Hands having holding devices shaped differently from human fingers, e.g. claws, hooks, tubes
Definitions
- the working claws of known construction for hand or arm-amputated persons are claws in the proper sense of the word, because they consist of tong-shaped metal bodies which can produce only a rigid contact, although the said bodies may be padded.
- the tools suffer from this rigid contact so much that for example agricultural implement-s which have been used by an aniputated labourer can later on not be used by a labourer having two hands.
- the reason herefor is that the wooden handle has been roughened through having been gripped by the claw.
- the improved working claw according to this invention is constructed sothat this inconvenience is avoided. .lt oifers further the advantage that it can be used equally well for handling a thick object or a thin one, e. g'., the handle of a sickle or a string for binding sheaves.
- the construction of the claw is improved so that the handle gripped by the same can be turned and moved in lateral direct-ion although it is securely held by the claw.
- the handle can never be damaged as it is not held rigidly but elastically.
- hollow guides b In a sleeve-shaped holder (0 designed to be inserted in a cylindrical support attached to the arm hollow guides b are fixed in inclined position, one pointing to the left the other to the right.
- a slide e In each hollow guide 7) a slide e is mounted which terminates in a hinge plate (Z.
- a plate 0 with hinge plate f is pivotally mounted at the outer end of each slide 0 through a pivot bolt 9, said plate being guided with its tail piece it in a slot 2' of an extension of the tubular guide 6.
- a blade spring Z fixed to the slide 0 bears with its free end below the pivot bolt 9 against the inner surface of the corresponding plate 6 which is thus continually pressed outward.
- the claw is closed as shown in the drawing so that it can grip an article, such as the bolt shown in Fig. 1 in cross section, between the gripping straps. Thinner articles are gripped with the outer edges of the plates 6, that is to say in the middle line of the claw. A lining n of suitable material can be fixed upon the surface of the straps m in order to make the grip absolutely secure. If the pull upon the straps m ceases, the claw is opened automatically through the action of the strong bladesprings as shown in Fig. l in dotted lines.
- I claim z- An improved working claw for handor arm-amputated persons comprising in combination with a holding sleeve to be placed upon the support fixed to the arm, outwardly inclined hollow guide pieces in said holding sleeve extending to the right and to the left, a lateral extension at the upper end of each hollow guide piece having a guide slot, a slide in each hollow guide, a plate pivotably connected with the outer end of each slide and engaging with its tail piece in the guide slot of the lateral extension of the corresponding hollow guide piece, a blade spring fixed to each slide and bearing against the lower surface of the corresponding hinged plate, a disk upon the upper end of said holding sleeve having two transverse slots, a gripping strap attached with its outer end to the upper surface of the cor responding plate and conducted through the corresponding slot of the said disk to be connected with a traction organ, substantially as described and shown and for the purpose set forth.
Description
APPLICATION FILED- AUG.9, 1920.
I Patent ed June 27 FATEENT ALFRED THIELE, 0F DRESDEN, GERMANY.
WORKING CLAW FOR HAND 0R ARM AMPUTA'I'ED PERSONS.
Specification of Letters Patent.
Patented June 27, 1922.
Application filed August 9, 1920. Serial No. 402,477.
T 0 (ZZZ "whom it may concern:
Be it known that I, ALFRED THIELE, a citizen of the German Republic, residing at Dresden, Germany, have invented certain new and useful Improvements in lVorking Claws for Hand or Arm Amputated Per sons, of which the following is a specification.
The working claws of known construction for hand or arm-amputated persons are claws in the proper sense of the word, because they consist of tong-shaped metal bodies which can produce only a rigid contact, although the said bodies may be padded. The tools suffer from this rigid contact so much that for example agricultural implement-s which have been used by an aniputated labourer can later on not be used by a labourer having two hands. The reason herefor is that the wooden handle has been roughened through having been gripped by the claw. The improved working claw according to this invention is constructed sothat this inconvenience is avoided. .lt oifers further the advantage that it can be used equally well for handling a thick object or a thin one, e. g'., the handle of a sickle or a string for binding sheaves. The construction of the claw is improved so that the handle gripped by the same can be turned and moved in lateral direct-ion although it is securely held by the claw. The handle can never be damaged as it is not held rigidly but elastically.
In the accompanying drawing the improved working claw is shown in- Fig. 1 in front elevation, one half in sec tion and in Fig. 2 in side elevation.
In a sleeve-shaped holder (0 designed to be inserted in a cylindrical support attached to the arm hollow guides b are fixed in inclined position, one pointing to the left the other to the right. In each hollow guide 7) a slide e is mounted which terminates in a hinge plate (Z. A plate 0 with hinge plate f is pivotally mounted at the outer end of each slide 0 through a pivot bolt 9, said plate being guided with its tail piece it in a slot 2' of an extension of the tubular guide 6. A blade spring Z fixed to the slide 0 bears with its free end below the pivot bolt 9 against the inner surface of the corresponding plate 6 which is thus continually pressed outward. If therefore the traction exerted upon said plates 6 ceases, said plates 6 are pressed out ward through the action of the spring Z and they are at the same time pushed forward as their tails h are held in the slot i of the extensions of the hollow guides Z2. This forward movement of the plates 6 is possible because the hinge of the plate 6 is carried by the slide 0, adapted to move in the hollow guide 6. To the front end and under surface of each plate 6 a gripping strap on is attached which is passed through a trans verse slot p of the disc 0 which serves as cover for the sleeve a. The gripping straps m, after having been passed through the sleeve (a are connected with the traction or gan designed to operate the claw. If a pull is exerted upon the straps m, which are preferably connected the one with the other behind the sleeve a, the claw is closed as shown in the drawing so that it can grip an article, such as the bolt shown in Fig. 1 in cross section, between the gripping straps. Thinner articles are gripped with the outer edges of the plates 6, that is to say in the middle line of the claw. A lining n of suitable material can be fixed upon the surface of the straps m in order to make the grip absolutely secure. If the pull upon the straps m ceases, the claw is opened automatically through the action of the strong bladesprings as shown in Fig. l in dotted lines.
I claim z- An improved working claw for handor arm-amputated persons comprising in combination with a holding sleeve to be placed upon the support fixed to the arm, outwardly inclined hollow guide pieces in said holding sleeve extending to the right and to the left, a lateral extension at the upper end of each hollow guide piece having a guide slot, a slide in each hollow guide, a plate pivotably connected with the outer end of each slide and engaging with its tail piece in the guide slot of the lateral extension of the corresponding hollow guide piece, a blade spring fixed to each slide and bearing against the lower surface of the corresponding hinged plate, a disk upon the upper end of said holding sleeve having two transverse slots, a gripping strap attached with its outer end to the upper surface of the cor responding plate and conducted through the corresponding slot of the said disk to be connected with a traction organ, substantially as described and shown and for the purpose set forth.
In testimony whereof I aflix my signature in presence of tWo wltnesses.
ALFRED THIELE.
Witnesses PAUL TI-IEUERKORN, OTTO KAHNEL.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US402477A US1421322A (en) | 1920-08-09 | 1920-08-09 | Working claw for hand or arm amputated persons |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US402477A US1421322A (en) | 1920-08-09 | 1920-08-09 | Working claw for hand or arm amputated persons |
Publications (1)
Publication Number | Publication Date |
---|---|
US1421322A true US1421322A (en) | 1922-06-27 |
Family
ID=23592056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US402477A Expired - Lifetime US1421322A (en) | 1920-08-09 | 1920-08-09 | Working claw for hand or arm amputated persons |
Country Status (1)
Country | Link |
---|---|
US (1) | US1421322A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5116386A (en) * | 1991-02-15 | 1992-05-26 | Scribner Albert W | Hand prosthesis |
-
1920
- 1920-08-09 US US402477A patent/US1421322A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5116386A (en) * | 1991-02-15 | 1992-05-26 | Scribner Albert W | Hand prosthesis |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2547592A (en) | Easy eel holder | |
US2462268A (en) | Locking means for a hinged impact mass or weight for marine equipment | |
US1421322A (en) | Working claw for hand or arm amputated persons | |
US1120735A (en) | Lifter. | |
US1996933A (en) | Key holder | |
US1515180A (en) | Spectacle case | |
US2550874A (en) | Cutting nippers | |
US1433326A (en) | Mop holder | |
US747359A (en) | Secateur. | |
US709226A (en) | Blacking-box holder. | |
US2269005A (en) | Holder for markers or razor blades | |
US1116601A (en) | Meat-tongue. | |
US966269A (en) | Egg-opener. | |
GB318376A (en) | Improvements in trucks for the conveyance of dust bins, sanitary pails, churns and the like | |
US1486503A (en) | Book or magazine holder | |
US725232A (en) | Twine holder and cutter. | |
US2180150A (en) | Tobacco cultivating implement | |
US525923A (en) | Ice-handling implement | |
US1309726A (en) | Razor | |
US1459804A (en) | Garment hanger | |
US1010784A (en) | Grape and orange clipper. | |
US792204A (en) | Valise attachment. | |
US1845387A (en) | Lady's cigarette holder | |
US884156A (en) | Animal catching and holding tool. | |
US400452A (en) | Whip-holder |