US129605A - Improvement in devices for operating rock-drills for wells - Google Patents

Improvement in devices for operating rock-drills for wells Download PDF

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US129605A
US129605A US129605DA US129605A US 129605 A US129605 A US 129605A US 129605D A US129605D A US 129605DA US 129605 A US129605 A US 129605A
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wheel
cam
lever
wells
improvement
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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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/16—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and oscillating motion
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/1828—Cam, lever, and slide
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18288—Cam and lever

Definitions

  • Our invention consists in combining, with the cam-wheel and lifting-lever of a drill, a second cam-wheel and afriction-roller, or its equivalent, bearing with a yielding pressure upon said second cam-Wheel, the said parts being so arranged with relation to the lifting-lever and its cam-wheel that when the lever drops from the cams of the first wheel the cam or cams of the second wheel will bear against the friction device or brake so as to hold the wheels in check and preserve the uniformity of motion of the machine while the drill is dropping.
  • Figure l is a perspective view of a machine embodying our invention.
  • Fig. 2 is a plan view of the same.
  • Fig. 3 is a vertical sectional view on the dotted line A B, Fig. 2.
  • a is the frame of the machine, consisting of a broad bed-piece furnished with two short uprights at the ends, which support a top piece.
  • I) is the bull-wheel placed on thetop of the frame, which turns with an upright shaft furnished with suitable bearings in the frame, and having two clips arranged at 0ppo'site sides on the top, through which a sweep-lever may be passed for the attachment of a horse.
  • a is the pinion-wheel, also fitted to a vertical shaft, and receiving motion from the bull-wheel.
  • d is a cam or eccentric wheel on the pinion-shaft, fitted with a number of cams.
  • e is the lifting-lever, made fast at one end to a projecting part of the frame and working at the other end, by means of a small roller, against the cams d.
  • f is a second cam-wheel on the same shaft with the first, and working against the friction-roller g.
  • the lifting-lever e is furnished with a number of holes at different distances from the fulcrum, into either of which a clevy may be fastened, attaching a chain. This chain passes to a leaning mast or derrick, or other contrivance, and, passing under one pulley at the bottom, follows to the top and passes over another, and thence down perpendicularly to the drill.
  • the cam-wheel d is made with such curves that with a uniform motion of the wheel a uniform lift is conveyed to the lever, and, by means of the chain, to the drill.
  • the end of the cam passes" from under the lever, when the drill, being unsupported, falls by its own weight, striking a blow on the rock, and the lifting-lever is brought into a position ready to start on another lift with the next succeeding cam.
  • the wheels are prevented from leaping forward in intermittent jerks at every dropping of the drill by the second cam-wheel f, which is set upon the shaft with such a relation to the first that while the cams d are raising the lifting-lever the friction-roller presents no resistance; but at the moment the lever drops the friction-roller presents itself to thecams f, which, before it can pass, must move back the roller against its springs or weight, and thereby holds the motion in check or keeps it at a uniform velocity, allowing the drill to drop and make a full blow without being caught up by the next succeeding cam before it can strike.
  • the extent of the lift may be diminished by moving the clevy nearer to the fulcrum in the series of holes in the lifting-lever for that purpose, and increased by moving it further from it; the advantage of this over other machines used for the same purpose being that the usual jerking motion, caused by the power being unrestrained when the drill falls, is entirely obviated by the camwheel f and friction-roller g,- and also the form of the lifting-cam d is such as to insure uni.- formity of motion during the lift.

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

Description

C. S. SIMMONS, 0. D. SlMMONS & H. H. SIMMONS.
Improvement in Devices for Operating Rock-Drillsfor Wells, &c. No. 129 605. Patentedlulyl6,1872.
UNITED STATES PATENT OFFICE.
CHARLES S. SIMMONS, ORLO D. SIMMONS, AND HENRY H. SIMMONS, OF WATERTOWN, NEW YORK.
IMPROVEMENT IN DEVICES FOR OPERATING ROCK-DRILLS FOR WELLS, &c.
Specification forming part of Letters Patent N 0. 129,605, dated July 16, 1872.
Specification describing certain Improvements in Power Drilling-Machines, invented by CHARLES S. SIMMoNs, ORLO D. Sri/nvroNs, and HENRY H. SnuMoNs, of Watertown, county of Jefferson, State of New York.
Our invention consists in combining, with the cam-wheel and lifting-lever of a drill, a second cam-wheel and afriction-roller, or its equivalent, bearing with a yielding pressure upon said second cam-Wheel, the said parts being so arranged with relation to the lifting-lever and its cam-wheel that when the lever drops from the cams of the first wheel the cam or cams of the second wheel will bear against the friction device or brake so as to hold the wheels in check and preserve the uniformity of motion of the machine while the drill is dropping.
Figure l is a perspective view of a machine embodying our invention. Fig. 2 is a plan view of the same. Fig. 3 is a vertical sectional view on the dotted line A B, Fig. 2.
a is the frame of the machine, consisting of a broad bed-piece furnished with two short uprights at the ends, which support a top piece. I) is the bull-wheel placed on thetop of the frame, which turns with an upright shaft furnished with suitable bearings in the frame, and having two clips arranged at 0ppo'site sides on the top, through which a sweep-lever may be passed for the attachment of a horse. a is the pinion-wheel, also fitted to a vertical shaft, and receiving motion from the bull-wheel. d is a cam or eccentric wheel on the pinion-shaft, fitted with a number of cams. e is the lifting-lever, made fast at one end to a projecting part of the frame and working at the other end, by means of a small roller, against the cams d. f is a second cam-wheel on the same shaft with the first, and working against the friction-roller g. The lifting-lever e is furnished with a number of holes at different distances from the fulcrum, into either of which a clevy may be fastened, attaching a chain. This chain passes to a leaning mast or derrick, or other contrivance, and, passing under one pulley at the bottom, follows to the top and passes over another, and thence down perpendicularly to the drill. The cam-wheel d is made with such curves that with a uniform motion of the wheel a uniform lift is conveyed to the lever, and, by means of the chain, to the drill. As the wheel revolves, the end of the cam passes" from under the lever, when the drill, being unsupported, falls by its own weight, striking a blow on the rock, and the lifting-lever is brought into a position ready to start on another lift with the next succeeding cam. The wheels are prevented from leaping forward in intermittent jerks at every dropping of the drill by the second cam-wheel f, which is set upon the shaft with such a relation to the first that while the cams d are raising the lifting-lever the friction-roller presents no resistance; but at the moment the lever drops the friction-roller presents itself to thecams f, which, before it can pass, must move back the roller against its springs or weight, and thereby holds the motion in check or keeps it at a uniform velocity, allowing the drill to drop and make a full blow without being caught up by the next succeeding cam before it can strike. The extent of the lift may be diminished by moving the clevy nearer to the fulcrum in the series of holes in the lifting-lever for that purpose, and increased by moving it further from it; the advantage of this over other machines used for the same purpose being that the usual jerking motion, caused by the power being unrestrained when the drill falls, is entirely obviated by the camwheel f and friction-roller g,- and also the form of the lifting-cam d is such as to insure uni.- formity of motion during the lift.
We make no claim as to the general use of an eccentric with a lifting-lever for drilling purposes, for we are awarethat this is not A new; but
We claim as our invention- The combination, with the lifting-lever and its operating cam-wheel, of a second cam-wheel and a friction device or brake, bearing with a yielding pressure against the cams of said wheel, said .parts being arranged with relation to the lifting-lever cam-wheel and operating substantially as herein described.
0. S. SIMMONS,
ORLO D. SIMMONS.
HENRY H. SIMMONS.
Witnesses:
J osEPn BASS, AMAZA BASS.
US129605D Improvement in devices for operating rock-drills for wells Expired - Lifetime US129605A (en)

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