US130542A - Improvement in lifting-jacks - Google Patents
Improvement in lifting-jacks Download PDFInfo
- Publication number
- US130542A US130542A US130542DA US130542A US 130542 A US130542 A US 130542A US 130542D A US130542D A US 130542DA US 130542 A US130542 A US 130542A
- Authority
- US
- United States
- Prior art keywords
- screw
- lifting
- jacks
- improvement
- worm
- 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
Links
- 238000010276 construction Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/16—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through bevel-wheel gearings
-
- 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
- Y10T74/19—Gearing
- Y10T74/1956—Adjustable
- Y10T74/19565—Relative movable axes
Definitions
- .A represents a block of any suitable dimensions, through which passes vertically a screw, B, having at its lower end an arm, 0, extending through a vertical slot, a, in the block. 011 the upper end of this screw is screwed a toothed wheel, D, which gears with a wormscrew, E, having its bearings in cars 12 12 upon a metal band, Gr, surrounding the upper end of the block.
- D a toothed wheel
- Gr metal band
- One of these ears is slotted, as shown in the drawing, so that this end of the worm-screw can be thrown in and out of gear with the wheel D. It is held in gear by a pin, (I, inserted in the top ofthe block, and working in a groove on the worm-screw.
- a crank, H Upon the end of the worm-screwis a crank, H, by means of which it is turned.
- the arm 0 is placed under the article to be raised, and the crank H turned, when the screw B is raised by means of the worm-screw E and toothed wheel D.
- the screw may be lowered by turning the crank backward; or, when no weight is on the screw, by taking out the pin d, throwing the worm out of gear, and turning the wheel D by a crank, f, on the same.
- This machine may be used for a variety of purposes: hoisting or raising buildings or cars, in presses of various kinds, pulling stumps, moving buildings, &c.
- the slotted Wooden block A having metal band G, with ears I) b, the angular bar 0, toothed wheel D, worm-screw shaft E with lever H, and the pin (1, all constructed substantially as set forth.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Eyeglasses (AREA)
Description
n. SHUMUSK.
improvement in-Lifting-lacks.
No. 130,542., I Patented Aug.13,1872.
TVibnesses I Inventor.
@ /g a r I I l Mi v v oriraeys.
UNITED STATES Q PATENT OFFIoE.
DAVID SHUMUSK, OF GASTI'LE, NEW YORK.
IMPRQVEMENT IN LlFTlNG-JACKS.
Specification forming part of Letters Patent No. 39,542, dated August 13, 1872.
To all whom it may concern:
Be it known that I, DAVID SHUMUsK, of Castile, in'the county of Wyoming, and in the State of New York, have invented certain new and useful Improvements in Lifting-Jack; and do hereby'declare that the following is a full, clear, and exact description thereof, reference being had'to the accompanying drawing and to the letters of reference marked thereon making a part of this specification.
The nature of my invention consists in the construction and arrangement of aliftingjack, as will be hereinafter more fully set forth.
" In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, which represents a perspective view of my machine. I
.A represents a block of any suitable dimensions, through which passes vertically a screw, B, having at its lower end an arm, 0, extending through a vertical slot, a, in the block. 011 the upper end of this screw is screwed a toothed wheel, D, which gears with a wormscrew, E, having its bearings in cars 12 12 upon a metal band, Gr, surrounding the upper end of the block. One of these ears is slotted, as shown in the drawing, so that this end of the worm-screw can be thrown in and out of gear with the wheel D. It is held in gear by a pin, (I, inserted in the top ofthe block, and working in a groove on the worm-screw. Upon the end of the worm-screwis a crank, H, by means of which it is turned.
The arm 0 is placed under the article to be raised, and the crank H turned, when the screw B is raised by means of the worm-screw E and toothed wheel D. The screw may be lowered by turning the crank backward; or, when no weight is on the screw, by taking out the pin d, throwing the worm out of gear, and turning the wheel D by a crank, f, on the same. v
This machine may be used for a variety of purposes: hoisting or raising buildings or cars, in presses of various kinds, pulling stumps, moving buildings, &c.
Having -thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-
The slotted Wooden block A, having metal band G, with ears I) b, the angular bar 0, toothed wheel D, worm-screw shaft E with lever H, and the pin (1, all constructed substantially as set forth.
In testimony that I claim the foregoing I have hereunto set my hand this 13th-day of May, 1872.
DAVID SHUMUSK.
Witnesses:
GEORGE SMITH, ANSON HOWARD.
Publications (1)
Publication Number | Publication Date |
---|---|
US130542A true US130542A (en) | 1872-08-13 |
Family
ID=2199960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US130542D Expired - Lifetime US130542A (en) | Improvement in lifting-jacks |
Country Status (1)
Country | Link |
---|---|
US (1) | US130542A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3069924A (en) * | 1959-08-18 | 1962-12-25 | Nippon Light Metal Co | Screw jack |
US6343436B1 (en) * | 2000-10-30 | 2002-02-05 | Seitz Corporation | Sliding sash drive assembly |
-
0
- US US130542D patent/US130542A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3069924A (en) * | 1959-08-18 | 1962-12-25 | Nippon Light Metal Co | Screw jack |
US6343436B1 (en) * | 2000-10-30 | 2002-02-05 | Seitz Corporation | Sliding sash drive assembly |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US130542A (en) | Improvement in lifting-jacks | |
US34063A (en) | Improvement in lifting-jacks | |
US147916A (en) | Improvement in lifting-jacks | |
US202197A (en) | Improvement in lifting-jacks | |
US24191A (en) | Machine fob | |
US116232A (en) | Improvement in lifting-jacks | |
US134086A (en) | Improvement in lifting-jacks | |
US130449A (en) | Improvement in lifting-jacks | |
US1018127A (en) | Lifting-jack. | |
US72314A (en) | John s | |
US164323A (en) | Improvement in lifting-jacks | |
US124721A (en) | Improvement in lifting-jacks | |
US146303A (en) | Improvement in lifting-jacks | |
US410995A (en) | stewart | |
US154961A (en) | Improvement in lifting-jacks | |
US117114A (en) | Improvement in carriage-jacks | |
US124814A (en) | Improvement in lifting-jacks | |
US182956A (en) | Improvement in wagon-jacks | |
US157254A (en) | Improvement in lifting-jacks | |
US132753A (en) | Improvement in lifting-jacks | |
US254815A (en) | Territory | |
US384705A (en) | Wagon-jack | |
US163647A (en) | Improvement in lifting-jacks | |
US525706A (en) | Lifting or log jack | |
US655297A (en) | Jack-screw. |