US166273A - Improvement in buffers for steam rock-drills - Google Patents

Improvement in buffers for steam rock-drills Download PDF

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Publication number
US166273A
US166273A US166273DA US166273A US 166273 A US166273 A US 166273A US 166273D A US166273D A US 166273DA US 166273 A US166273 A US 166273A
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improvement
head
steam
drills
buffers
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/226—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/20—Clamps
    • Y10T292/221—Screw and nut

Definitions

  • Figure l is a top-end view of the steam-cylinder of a steam rock drill 1 to which my improvement has been applied.
  • Fig. 2 is 2. Iongitudinal section of the same, taken through the line :10 as, Fig. 1.
  • the object of this invention is to relieve the heads of the steam-cylinder of a steanrdrill from the liability of being broken by the blows of the piston as it works the drill.
  • the invention consists in the combination of the packing and the plate with the recessed head and the long bolts of the steam-cylinder of a rock-drill, as hereinafter fully described.
  • A is the piston-rod, to which the drill-bit is attached.
  • B is the piston, and O is the steamcylinder in which the piston B works.
  • D is the lower cylinderhead, through which the piston-rod Aplays and E is the upper cylinder-head.
  • E is the upper cylinder-head.
  • E is formed in the upper or outer side of the upper head E in which is fitted a block, F, of rubber or other suitable material.
  • G is a plate, upon the lower side of which is formed a projection, g, fitting into the recess 6 of the head E, and resting upon the packing F.
  • H are two long bolts, which pass through lugs upon the edges of the cylinderheads D E and plate G, and have nuts screwed upon their ends.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Percussive Tools And Related Accessories (AREA)

Description

UNITED STATES PATENT OEEIoE.
JOSEPH o. GITHENS, on NEW YORK, N. Y.
IMPROVEMENT IN BUl-FERS FOR STEAM ROCK-DRILLS.
Specification forming part of Letters Patent No. 166,273, dated August 3, 1875; application filed June 19, 1875.
To all whom it may concern 7 Be it known that I, J OSEPH O. GITHENs, of the city, county, and State of New York, have invented, a new and useful Improvement in Buffer for Steam Rock-Drills, of which the following is a specification:
Figure l is a top-end view of the steam-cylinder of a steam rock drill 1 to which my improvement has been applied. Fig. 2 is 2. Iongitudinal section of the same, taken through the line :10 as, Fig. 1.
Similar letters of reference indicate corresponding parts.
The object of this invention is to relieve the heads of the steam-cylinder of a steanrdrill from the liability of being broken by the blows of the piston as it works the drill.
The invention consists in the combination of the packing and the plate with the recessed head and the long bolts of the steam-cylinder of a rock-drill, as hereinafter fully described.
A is the piston-rod, to which the drill-bit is attached. B is the piston, and O is the steamcylinder in which the piston B works. D is the lower cylinderhead, through which the piston-rod Aplays and E is the upper cylinder-head. In the upper or outer side of the upper head E is formed a recess, 6, in which is fitted a block, F, of rubber or other suitable material. G is a plate, upon the lower side of which is formed a projection, g, fitting into the recess 6 of the head E, and resting upon the packing F. H are two long bolts, which pass through lugs upon the edges of the cylinderheads D E and plate G, and have nuts screwed upon their ends.
By this construction, as the piston B in its,
upward movement strikes the upper head E it forces the said head upward against the packing F, and the blow is finally sustained by the long bolts H, which draw against the lower head 1). As the piston B, in its downward movement, strikes against the lower head D, the said head moves downward a little, and, through the long bolts H, draws the plate G down upon the packing F, relieving the head E from the force of the blow. By this construction a, single buffer at one end of the cylinder relieves the head from the force of the blows at both ends of the cylinder.
Having thus described my invention, Iclaim as new and desire to secure by Letters Patent- The combination of the packing Fand the plate G g with the recessed head E e and the long bolts H of the steam-cylinder of a rockdrill, substantially as herein shown and described.
J OSEPH' G. GITHENS. Witnesses:
JAMES 'l. GRAHAM, '1. B. MOSHER.
US166273D Improvement in buffers for steam rock-drills Expired - Lifetime US166273A (en)

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US166273A true US166273A (en) 1875-08-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5072652A (en) * 1990-11-16 1991-12-17 Blatt John A Gripping device having impact cushioning means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5072652A (en) * 1990-11-16 1991-12-17 Blatt John A Gripping device having impact cushioning means

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