US129164A - Improvement in construction of pick and rammer sockets - Google Patents

Improvement in construction of pick and rammer sockets Download PDF

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Publication number
US129164A
US129164A US129164DA US129164A US 129164 A US129164 A US 129164A US 129164D A US129164D A US 129164DA US 129164 A US129164 A US 129164A
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Prior art keywords
pick
construction
sockets
improvement
rammer
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship
    • F16B7/0446—Clamping or clipping connections for rods or tubes being in angled relationship for tubes using the innerside thereof
    • F16B7/0453—Clamping or clipping connections for rods or tubes being in angled relationship for tubes using the innerside thereof the tubes being drawn towards each other
    • F16B7/0466—Clamping or clipping connections for rods or tubes being in angled relationship for tubes using the innerside thereof the tubes being drawn towards each other by a screw-threaded stud with a conical tip acting on an inclined surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/20—Connections with hook-like parts gripping behind a blind side of an element to be connected
    • F16B2200/205—Connections with hook-like parts gripping behind a blind side of an element to be connected the hook being a separate retainer

Definitions

  • the invention relates particularly to the picks and rammers used by miners; and consists in the improved construction thereof, as hereinafter fully described and then clearly pointed out in the claim.
  • Figure l is avertical longitudinal
  • Fig. 2 is a vertical cross-sectionwfthe socket.
  • A represents a pick providedwith a socket, B, which is formed in one piece therewith. This socket extends to within about a quarter of an inch of the front surface of the tool. 0
  • a transverse pin is then passed through side apertures D D, so that the'handle cannot be worked out backward by jars.
  • the great object in a mining pick or rainuser is to support and prevent the handle from splitting, and also to give suflicient thickness and strength around the eye to enable the metal to take'the strain of percussion without cracking.
  • the fracture of the wood is prevented by the socket, while the fracture of the metal is avoided by leaving the front 0 in its full strength, having only the slight perfo ration c.
  • a pick or ramrner provided with socket B extending only to the solid and perforated front 0 c, as described, and for the purpose setiforth.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Stringed Musical Instruments (AREA)

Description

J. PEARCE.
improvement in Construction of Picks and Hammer-Sockets.
Vatente d July 16, 1872..
UNITED STATES PATENT OFFICE.
JOHN PEARCE, or BARTON, MARYLAND.
IMPROVEMENT IN CONSTRUCTION OF PICK AND RANIMER SOCKETS.
Specification forming part of Letters Patent No. 129,164, dated July 16, 1872.
Specification describing an Improvement in the Construction of Pick and Rammer Sockets, invented by JOHN PEARCE, of Barton, in the county of Alleghany and State of Maryland.
The invention relates particularly to the picks and rammers used by miners; and consists in the improved construction thereof, as hereinafter fully described and then clearly pointed out in the claim.
Figure l is avertical longitudinal, and Fig. 2 is a vertical cross-sectionwfthe socket.
A represents a pick providedwith a socket, B, which is formed in one piece therewith. This socket extends to within about a quarter of an inch of the front surface of the tool. 0
.is the piece in front of eye, and c is a small perforation therethrough, which opens into the socket-hole. The object of the latter is to.
and the handle fastened firmly to the pick or rammer. A transverse pin is then passed through side apertures D D, so that the'handle cannot be worked out backward by jars.
The great object in a mining pick or rainuser is to support and prevent the handle from splitting, and also to give suflicient thickness and strength around the eye to enable the metal to take'the strain of percussion without cracking. The fracture of the wood is prevented by the socket, while the fracture of the metal is avoided by leaving the front 0 in its full strength, having only the slight perfo ration c. I
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
A pick or ramrner, provided with socket B extending only to the solid and perforated front 0 c, as described, and for the purpose setiforth.
JOHN PEARCE. Witnesses:
SOLON O. KEMoN, Tnos. D. D. OURAND'.
US129164D Improvement in construction of pick and rammer sockets Expired - Lifetime US129164A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440206A (en) * 1983-03-10 1984-04-03 Dart John R Universal hammer having interchangeable heads
US4574788A (en) * 1984-10-15 1986-03-11 Jordan Ben L Facile back scratcher
US20180009934A1 (en) * 2016-07-11 2018-01-11 John L. Lombardi High dielectric breakdown strength resins

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440206A (en) * 1983-03-10 1984-04-03 Dart John R Universal hammer having interchangeable heads
US4574788A (en) * 1984-10-15 1986-03-11 Jordan Ben L Facile back scratcher
US20180009934A1 (en) * 2016-07-11 2018-01-11 John L. Lombardi High dielectric breakdown strength resins

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