US118058A - Improvement in bit-stocks - Google Patents

Improvement in bit-stocks Download PDF

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Publication number
US118058A
US118058A US118058DA US118058A US 118058 A US118058 A US 118058A US 118058D A US118058D A US 118058DA US 118058 A US118058 A US 118058A
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Prior art keywords
bit
stocks
stock
sleeve
improvement
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16GBELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G15/00Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
    • F16G15/08Swivels
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/32Articulated members
    • Y10T403/32114Articulated members including static joint
    • Y10T403/32213Articulate joint is a swivel

Definitions

  • My invention is designed to overcome this defect and it consists in constructing the sleeve with a flange in addition to the screw, which is secured to the head by means of screws or other proper fastenings.
  • Figure 1 is a perspective view of my improved bit-stock.
  • Fig. 2 is a vertical sectional view enlarged of the wooden head and the end of the stock. secured to it.
  • the end (3 of the stock is turned off smaller than the rod D, so as to fit loosely and turn freely within the sleeve B, and the end 0 is secured to the washer, which prevents the stock from withdrawing from the sleeve B.
  • the upper part of the sleeve is screw-threaded, and fits into a corresponding screw -threaded recess cut in the wooden head A.
  • the flange forming part of the sleeve B when the head A is screwed down on Witnesses L. J. GUNN, F. HUBBARD.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Description

sAuErsAwvm.
flmpmveam in Bit Stocks.
Patnted August 15, 1871.
UNITED STATES PATENT OFFICE.
SAMUEL SAWYER, OF ERVING, MASSACHUSETTS, ASSIGNOR TO MILLERS FALLS MANUFACTURING COMPANY, OF SAME PLACE.
IMPROVEMENT lN BIT-STOCKS.
Specification forming part of Letters Patent No. 118,058, dated August 15, 1871.
To all whom it may concern.-
Be it known that I, SAMUEL SAWYER, of Erving, in the county of Franklin and State of Massachusetts, have invented a new and useful Improvement in Bit-Stocks, of which the following is a specification:
In the construction of bit-stocks heretofore, so far as known to me, the stock has been attached to the wooden head by means of a screw upon a sleeve, one end of which was secured to the bit-stock by means of a groove and pin or similar fastening, while the other end was screwthreaded, and was screwed into the wooden head, and thus became the only fastening between the head and sleeve. Much difficulty and trouble have been produced by this method of construe sion, as when the stock was turned in the reverse direction to that in which the screw-thread was under pressure the friction of the parts, the sleeve, and stock would be sufficient to unscrew the wooden head, and in such case the head would often split.
My invention is designed to overcome this defect and it consists in constructing the sleeve with a flange in addition to the screw, which is secured to the head by means of screws or other proper fastenings.
Figure 1 is a perspective view of my improved bit-stock. Fig. 2 is a vertical sectional view enlarged of the wooden head and the end of the stock. secured to it.
The end (3 of the stock is turned off smaller than the rod D, so as to fit loosely and turn freely within the sleeve B, and the end 0 is secured to the washer, which prevents the stock from withdrawing from the sleeve B. The upper part of the sleeve is screw-threaded, and fits into a corresponding screw -threaded recess cut in the wooden head A. The flange forming part of the sleeve B, when the head A is screwed down on Witnesses L. J. GUNN, F. HUBBARD.
US118058D Improvement in bit-stocks Expired - Lifetime US118058A (en)

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