US1409415A - Mechanical hand - Google Patents

Mechanical hand Download PDF

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Publication number
US1409415A
US1409415A US466526A US46652621A US1409415A US 1409415 A US1409415 A US 1409415A US 466526 A US466526 A US 466526A US 46652621 A US46652621 A US 46652621A US 1409415 A US1409415 A US 1409415A
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United States
Prior art keywords
mechanical hand
hand
levers
cams
fingers
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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
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US466526A
Inventor
Schimmel Wilhelm
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Individual
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Individual
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Priority to US466526A priority Critical patent/US1409415A/en
Application granted granted Critical
Publication of US1409415A publication Critical patent/US1409415A/en
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Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • the object of this invention is to provide a mechanical hand which is adapted to play key instruments of any kind and can conveniently be used for advertising purposes, as by placing the same in a shop window together with a piano, which it plays.
  • the invention is illustrated in the anneXed drawing.
  • Fig. l is a sectional view with the hand closed.
  • F ig. 2 is a. full view tially closed fingers.
  • a designates part of the arm or wrist, Y) the hand, and c a frame or holder.
  • the fingers f pivoted to the hand are in the form of bell cranks, whose arms of the hand with par- (Z are connected by wires a or equivalent means to levers g pivoted to the frame c.
  • the levers g are held by springs Z in contact with cams m on a shaft a, which is driven by an electromotor, spring motor, or equivalent means, soy that the cams m actuate the levers g in turn and thus cause the lingers to strike the keys of the instrument over whose keyboard they are placed, the action being very similar to that ofva natural hand.
  • a mechanical hand for playing key in-V struments comprising a support, fingers pivoted to said support, a shaft, a series of cams on said shaft, tuated by said cams, and wires severally connecting said levers to said fingers.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Transplantation (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Auxiliary Devices For Music (AREA)
  • Stringed Musical Instruments (AREA)
  • Percussion Or Vibration Massage (AREA)

Description

UNITED STATES WILHELM SCI-IIMMEL, 0F LEIPZIG-STOTTERITZ, GERMANY. i
MECHANICAL HAND.
Specication of Letters Patent Patented Mar. 14, 1922.
Application led May 3, 1921. Serial No. 466,526.
(GRANTED'UNDER THE PROVISIONS 0F TH ACT 0F MARCH 3, 1921, 41 STAT. L., 1313.) f
10 all whom t may concern:
Be it known that I, VILHnLu SCHIMMEL, of LeipZig-StotteritZ, Germany, a citizen of the German Republic, have invented certain new and useful Improvements in Mechanical Hands, (for which I have filed an application in Germany, June 6, 1919,) of which the following is a specification.
The object of this invention is to provide a mechanical hand which is adapted to play key instruments of any kind and can conveniently be used for advertising purposes, as by placing the same in a shop window together with a piano, which it plays.
The invention is illustrated in the anneXed drawing.
Fig. l is a sectional view with the hand closed.
F ig. 2 is a. full view tially closed fingers.
In the drawing, a designates part of the arm or wrist, Y) the hand, and c a frame or holder. The fingers f pivoted to the hand are in the form of bell cranks, whose arms of the hand with par- (Z are connected by wires a or equivalent means to levers g pivoted to the frame c. The levers g are held by springs Z in contact with cams m on a shaft a, which is driven by an electromotor, spring motor, or equivalent means, soy that the cams m actuate the levers g in turn and thus cause the lingers to strike the keys of the instrument over whose keyboard they are placed, the action being very similar to that ofva natural hand.
There may, of course, be twoY hands, joined to a figure seated on a chair. Means for moving the arms laterally may be provided, but are not included in this invention.
What I claim as my invention and desire to secure by Letters Patent of the United l. A mechanical hand for playing key in-V struments, comprising a support, fingers pivoted to said support, a shaft, a series of cams on said shaft, tuated by said cams, and wires severally connecting said levers to said fingers.
In witness whereof I have signed this specification in the presence of two witnesses.
WILHELMV SCHIMMEL. Witnesses LUIsn TsoHERNY, ARTHUR WERNER.
a series of levers severally ac-
US466526A 1921-05-03 1921-05-03 Mechanical hand Expired - Lifetime US1409415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US466526A US1409415A (en) 1921-05-03 1921-05-03 Mechanical hand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US466526A US1409415A (en) 1921-05-03 1921-05-03 Mechanical hand

Publications (1)

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US1409415A true US1409415A (en) 1922-03-14

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Family Applications (1)

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US466526A Expired - Lifetime US1409415A (en) 1921-05-03 1921-05-03 Mechanical hand

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090229398A1 (en) * 2008-03-24 2009-09-17 Franklin Leon Vargas Electromechanical motion hand

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090229398A1 (en) * 2008-03-24 2009-09-17 Franklin Leon Vargas Electromechanical motion hand

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