US131902A - Improvement in hoisting-machines - Google Patents

Improvement in hoisting-machines Download PDF

Info

Publication number
US131902A
US131902A US131902DA US131902A US 131902 A US131902 A US 131902A US 131902D A US131902D A US 131902DA US 131902 A US131902 A US 131902A
Authority
US
United States
Prior art keywords
hoisting
gear
machines
improvement
cross
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US131902A publication Critical patent/US131902A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • 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
    • Y10T74/00Machine element or mechanism
    • Y10T74/19Gearing
    • Y10T74/19219Interchangeably locked
    • Y10T74/19372Single forward and reverse speeds

Definitions

  • is a cross-section in line x tv of Fig. l.
  • A is the frame of the machine, which may be-of any suitable form and construction.
  • B is the roller, pulley, or shaft which supports the rope or chain that raises and lowers the weight.
  • b is a bevel-gear wheel on the fend of said shaft; and
  • C is a vertical shaft,turned by a crank, e, and carrying inside ofv the frame two horizontal bevelwheels, d d', arranged in such relation to the wheel b that the latter when lowered gears with the lower wheel d and rotates in the direction shown by the arrow in Fig. l; when raised, gears with the upper wheel d and rotates in the direction shown by the arrow i'n Fig. 2 and when heldin a -horizontal position is not in gear atall, and consequently ceases to rotate.
  • journalbox nearest to the shaft C vertically adjustable by means of a hand-lever, E.
  • This lever extends'acrossthe machine, being pivoted at e to a stout cross-piece, a, attached to the frame, the opposite end of the lever projecting beyond the frame and cross-piece to form a convenient handle, e.
  • yThe shaft or its elongated journal extends through the cross-piece a in a curved slot, o, provided to accommodate its movements.
  • the top and end of the frame are covered, as shown at a', and this cover, together with the cross-piece c, boxes in the gear-wheels'and prevents them from injury by the weather, dust, Sto.
  • a rack, r is affixed to the side of the partition or cross-piece a, which engages with the lever E to hold it at three points-viz., to bring the wheel b in gear with either of the horizontal wheels, or to hold it out of gear midway between them.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Ropes Or Cables (AREA)

Description

G. H. PITTMAN.
`Improvement in Hoi'sting-Mach'ines.
Patented Oct. 1,1872.
ISL'QOZ;
Mmmm
raam www I@ I PATENT OFFICE.
y GEORGE H. PITTMAN," OF MGGONNELLSBURG, PENN SYLVANIA..
lli/IPROVEMENTI IN YHOISTING-MACHINES.
Specification forming part of Letters Patent No. 131,902, dated October 1, 18.72.
To all 'whom it may concern: y
Be it known that I, GEORGE H. PITTMAN, of McConnellsburg, in the county of Fulton and State of Pennsylvania, have invented a new and Improved Hoisting-Machine; and I do hereby declare the following' to be a full and exact description of the same, reference being had to the accompanying drawing forming part of thisspecfication, in which- 4Figure l represents a side elevation and partial section, the draft-roll being in gear with the lower wheel on the driving-shaft; Fig. 2 is a similar view representing the draf'troll in gear with' the upper'wheel; and Fig. 3
`is a cross-section in line x tv of Fig. l.
' I will now proceed to describe.
1n the drawing, A is the frame of the machine, which may be-of any suitable form and construction. B is the roller, pulley, or shaft which supports the rope or chain that raises and lowers the weight. b is a bevel-gear wheel on the fend of said shaft; and C is a vertical shaft,turned by a crank, e, and carrying inside ofv the frame two horizontal bevelwheels, d d', arranged in such relation to the wheel b that the latter when lowered gears with the lower wheel d and rotates in the direction shown by the arrow in Fig. l; when raised, gears with the upper wheel d and rotates in the direction shown by the arrow i'n Fig. 2 and when heldin a -horizontal position is not in gear atall, and consequently ceases to rotate.
To place the movement of the shaft under the control of the operator, I make the journalbox: nearest to the shaft C vertically adjustable by means ofa hand-lever, E. This lever extends'acrossthe machine, being pivoted at e to a stout cross-piece, a, attached to the frame, the opposite end of the lever projecting beyond the frame and cross-piece to form a convenient handle, e. yThe shaft or its elongated journal extends through the cross-piece a in a curved slot, o, provided to accommodate its movements. The top and end of the frame are covered, as shown at a', and this cover, together with the cross-piece c, boxes in the gear-wheels'and prevents them from injury by the weather, dust, Sto. A rack, r, is affixed to the side of the partition or cross-piece a, which engages with the lever E to hold it at three points-viz., to bring the wheel b in gear with either of the horizontal wheels, or to hold it out of gear midway between them.
Having thus described my invention, what I claim as new is I The improvedl hoisting-machine herein described, combining the frame A, the shafts B C, the crank c, the gear-wheels b dd', the slotted cross-piece a, and the lever E, and rack r, substantially as described, for the purposes set forth.
GEORGE H. PITTMAN. Witnesses:
C. H.v KENDALL, ABRAHAM W. Fox.
US131902D Improvement in hoisting-machines Expired - Lifetime US131902A (en)

Publications (1)

Publication Number Publication Date
US131902A true US131902A (en) 1872-10-01

Family

ID=2201319

Family Applications (1)

Application Number Title Priority Date Filing Date
US131902D Expired - Lifetime US131902A (en) Improvement in hoisting-machines

Country Status (1)

Country Link
US (1) US131902A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035451A (en) * 1959-01-07 1962-05-22 Connell O Hand powered rotary tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035451A (en) * 1959-01-07 1962-05-22 Connell O Hand powered rotary tool

Similar Documents

Publication Publication Date Title
US131902A (en) Improvement in hoisting-machines
US321860A (en) X f feed sell
US610933A (en) Hoisting-machine
US1161592A (en) Planer feed-gear.
US636959A (en) Malt turning and stirring mechanism.
US294395A (en) Steam-derrick
US598151A (en) The mows peters
US203234A (en) Improvement in stone and glass polishers
US103080A (en) John richards
US428196A (en) youngl
US373755A (en) bogees
US803522A (en) Change-speed gearing.
US126093A (en) Improvement in swinging saws
US620735A (en) Traction-engine
US222463A (en) Improvement in driving-gear for toggle-presses
US291823A (en) Press-roller mechanism for gang-saw mills
US342536A (en) Log-handling mechanism
US653056A (en) Car-brake device.
US80164A (en) Michael g
US140386A (en) Improvement in log-turners
US1181321A (en) Clutch-shifter for overhung winches.
US1197125A (en) Motor-car-actuated power-jack.
US279678A (en) Flour-packer
US542521A (en) Steering mechanism for thrashing-machines
US119909A (en) Improvement in horse-powers