US464722A - Artificial leg - Google Patents

Artificial leg Download PDF

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US464722A
US464722A US464722DA US464722A US 464722 A US464722 A US 464722A US 464722D A US464722D A US 464722DA US 464722 A US464722 A US 464722A
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Prior art keywords
bolt
stirrup
bearing
artificial leg
section
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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
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2/66—Feet; Ankle joints
    • A61F2/6607—Ankle joints

Definitions

  • My invention relates to artificial legs, and has special reference to means for connecting the foot-section to the ankle-section.
  • Figure 1 represents a perspective of the ankle and foot sections of an artificial leg provided with my improvement, which is shown in dotted lines;
  • Fig. 2 a front view of the stirrup and the journal;
  • Fig. 3 a transverse section, and
  • Fig. l a detail perspective.
  • A indicates the anklesection
  • B the foot-section, which may be of any approved form.
  • C is a stirrup, in the sides CL of which and at the upper ends thereof are recesses 11 b to receive the ends of a journal-bearing D, in the sides of which are rabbets c c to receive the sides (I d of an adj usting-bolt E, the lower end of which is provided with a screw-threaded portion 6, which extends throughthe aperture fin the transverse bar g of the stirrup, and is provided with a washer h, a nut t', and a lock-nut 70.
  • the bolt F indicates a bolt which passes through the side bars Z Z and forms the joint upon which the foot-section B moves and rests in the journal-bearing D.
  • This bearing is provided with a separate and adjustable cover G, which is provided with a rabbet m to receive the upper end n of the adj nsting-bolt E, which, with the rabbet c c in the journal-bearing, prevents any lateral movement of the adj listing-bolt.
  • the bolt F is made angular at 0 to engage the ends of the barsZ Z and the bolt turning on its axis. IVashers p are inserted between the head q of the bolt F and its nut r and the side bars Z Z, which are preferably made of brass or analogous soft metal.
  • H indicates a bolt which crosses the stirrup and stilfens the sides thereof.
  • journal-bearing and its cover are preferably made of aluminum; but other suitable metal commonly used for such purposes may be substituted.
  • means for connecting the foot-section to the ankle-section consisting of a stirrup having a transverse journalbearing at its upper end, a cover for said bearing, and a device for adjusting the cover to compensate wear.
  • a stirrup for connecting the foot-section to the ankle-section, rece'sses in the ends of the stirrup, a journalbearing supported in said recesses, a bolt supported in said bearing, a separate cover for the bearing, and a bolt engaging the cover and extending through the transverse bar of the stirrup.
  • a stirrup In an artificial leg, a stirrup, a journalbearing supported in said stirrup, a separate and adjustable cover for said bearing, rabbets in the bearing and cover, and a bolt havinga bent end provided with laterally-extending sides which engage said rabbets, all combined substantially as described.

Description

(No Model.)
J. B. KREIDER. ARTIFICIAL LEG.
No. 464,722. Patented Dec. 8. 1891.
M g VS innnn WITNESSES:
ATTORNEY! UNITED STATES PATENT. OFFICE.
JACOB B. KREIDER, OF ANNVILLE, PENNSYLVANIA.
ARTIFICIAL LEG.
SPECIFICATION forming part of Letters Patent No. 464,722, dated December 8, 1891.
Application filed October 27,1891- SerialNo. 409,995- (No model.)
To all whom it may concern:
Be it known that I, JACOB B. KREIDER, a citizen of the United States, residing at Annville, in the county of Lebanon and State of Pennsylvania, have invented certain new and useful Improvements in Artificial Legs; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
My invention relates to artificial legs, and has special reference to means for connecting the foot-section to the ankle-section.
The invention will be fully disclosed in the following specification and claims.
In the accompanying drawings, which form part of this specification, Figure 1 represents a perspective of the ankle and foot sections of an artificial leg provided with my improvement, which is shown in dotted lines; Fig. 2, a front view of the stirrup and the journal; Fig. 3, a transverse section, and Fig. l a detail perspective. I
Reference being had to the drawings and the letters thereon, A indicates the anklesection, and B the foot-section, which may be of any approved form.
C is a stirrup, in the sides CL of which and at the upper ends thereof are recesses 11 b to receive the ends of a journal-bearing D, in the sides of which are rabbets c c to receive the sides (I d of an adj usting-bolt E, the lower end of which is provided with a screw-threaded portion 6, which extends throughthe aperture fin the transverse bar g of the stirrup, and is provided with a washer h, a nut t', and a lock-nut 70.
F indicates a bolt which passes through the side bars Z Z and forms the joint upon which the foot-section B moves and rests in the journal-bearing D. This bearing is provided with a separate and adjustable cover G, which is provided with a rabbet m to receive the upper end n of the adj nsting-bolt E, which, with the rabbet c c in the journal-bearing, prevents any lateral movement of the adj listing-bolt. The bolt F is made angular at 0 to engage the ends of the barsZ Z and the bolt turning on its axis. IVashers p are inserted between the head q of the bolt F and its nut r and the side bars Z Z, which are preferably made of brass or analogous soft metal.
H indicates a bolt which crosses the stirrup and stilfens the sides thereof.
. The journal-bearing and its cover are preferably made of aluminum; but other suitable metal commonly used for such purposes may be substituted.
Having thus fully described my invention, what I claim is 1. In an artificial leg, means for connecting the foot-section to the ankle-section, consisting of a stirrup having a transverse journalbearing at its upper end, a cover for said bearing, and a device for adjusting the cover to compensate wear.
2. In an artificial leg, a stirrup for connecting the foot-section to the ankle-section, rece'sses in the ends of the stirrup, a journalbearing supported in said recesses, a bolt supported in said bearing, a separate cover for the bearing, and a bolt engaging the cover and extending through the transverse bar of the stirrup.
3. In an artificial leg, a stirrup, a journalbearing supported in said stirrup, a separate and adjustable cover for said bearing, rabbets in the bearing and cover, and a bolt havinga bent end provided with laterally-extending sides which engage said rabbets, all combined substantially as described.
In testimony whereof I aftix my signature in presence of two witnesses.
.JACOB B. KREIDER.
Witnesses:
D. (J. REINOHL, H. B. REINOHL.
US464722D Artificial leg Expired - Lifetime US464722A (en)

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