US196117A - Improvement in hoisting-jacks - Google Patents
Improvement in hoisting-jacks Download PDFInfo
- Publication number
- US196117A US196117A US196117DA US196117A US 196117 A US196117 A US 196117A US 196117D A US196117D A US 196117DA US 196117 A US196117 A US 196117A
- Authority
- US
- United States
- Prior art keywords
- screw
- hoisting
- jacks
- ratchet
- 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 6
- 210000003746 Feathers Anatomy 0.000 description 4
- 230000002441 reversible Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
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
- Y10T74/19642—Directly cooperating gears
- Y10T74/19698—Spiral
- Y10T74/19823—Screw
Definitions
- This invention relates to the mode of operating the screw of screw hoisting jacks, or for other similar purposes where great force is required; and. it consists in the construction and arrangement of a driving-collar to the screw, that is furnished on its periphery with worm or tangent teeth; ⁇ f'and which is operated by a worm-screw, in the usual manner.
- the screw has a longitudinal groove and the collar a feather iitting into it, by which the screw is turned.
- the object is to compound the screw-power ⁇ for raising great weight in an apparatus that is simple, compact, strong, and cheap in construction and efficient in operation.
- the invention further consists in the construction and arrangement of a reversible and disconnectible ratchet-lever, that engages with a ratchet on the shaft of the worm-screw, by
- the double reversible paWl e is pivoted at o, and the outer end engages with the three-notched spring-holder s.
- this pawl When this pawl is set in either of the outer notches it will engage with the ratchet-wheel r on that side, so as to run the screw B ⁇ up or down, as required.
- the crank can be used, the ratchet-lever can be disengaged from the ratchet-wheel r by setting its outer end in the middle notch, when it will hang loosely on the shaft of screw E.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Transmission Devices (AREA)
Description
W. A; GREE'NLEAP.
Hoisting-Jack.
No.196,117. Patented Oct. 16,1877.,
B Fig-.1 fig. 2.
c l i Cf G 0 'a o O @5- I a F 4:3 A. l AV l e l L Fz'g'- 4'.
ZINITED STATES.
PATENT OFFICE.
WILLIAM A. GREENLEAF, OF INDIANAPOLIS, INDIANA, ASSIGNOR OF ONE- HALF HIS RIGHT TO EWALD OVER, OF SAME PLACE.
IMPROVEMENT IN HOISTING-JACKS.
Specification forming part of Letters Patent No. 196,117, dated October 16, 1877; application tiled May 1, 1877.
To all whom it may concern:
Be it known that I, WILLIAM A. GREEN- LEAF, residing in Indianapolis, in the county of Marion and Stateof Indiana, have invented certain Improvements in Screw Hoisting- Jacks, of which the following is a specification :v
This invention relates to the mode of operating the screw of screw hoisting jacks, or for other similar purposes where great force is required; and. it consists in the construction and arrangement of a driving-collar to the screw, that is furnished on its periphery with worm or tangent teeth;`f'and which is operated by a worm-screw, in the usual manner. The screw has a longitudinal groove and the collar a feather iitting into it, by which the screw is turned.
The object is to compound the screw-power` for raising great weight in an apparatus that is simple, compact, strong, and cheap in construction and efficient in operation.
The invention further consists in the construction and arrangement of a reversible and disconnectible ratchet-lever, that engages with a ratchet on the shaft of the worm-screw, by
which the latter may be operated when the crank cannot be used.
In the accompanying drawing, Figure l 1s an elevation, and Figfv 2 a vertical section, of
screw; F, crank; Gr, ratchet-lever, the latter being shown in detail in Fig. 4.
It will be seen that the mode of operating the screw B by means of the worm-collar D and screw E is convenient and efficient, as well as affording a combination of the screw to eXert wonderful force. The worm-collar 1) is kept in position by resting on the top of the lower .section of the case or stock A.
In the ratchet-lever the double reversible paWl e is pivoted at o, and the outer end engages with the three-notched spring-holder s. When this pawl is set in either of the outer notches it will engage with the ratchet-wheel r on that side, so as to run the screw B` up or down, as required. When the crank can be used, the ratchet-lever can be disengaged from the ratchet-wheel r by setting its outer end in the middle notch, when it will hang loosely on the shaft of screw E.
I do not make any claim, broadly, to operating the screw B by worm-gearing as a means of exerting great force, as this has been done in other similar devices, and is not new.
I claim as my inventionl. In combination with the nut C and grooved screw B, the worm-collar D, fiunished withthe feather a, and operated by means ofthe wormscrew E, constructed and arranged and operating substantially as set forth.
2. In combination with the nut C, screw I3, collar D, worm-screw E, the ratchet-lever G, constructed, arranged, and operating substantially as set forth.
E WM. A. GREENLEAF.
Witnesses:
O. F. MAYIIEW, THOMAS J. VATER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US196117A true US196117A (en) | 1877-10-16 |
Family
ID=2265523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US196117D Expired - Lifetime US196117A (en) | Improvement in hoisting-jacks |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US196117A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2885711A (en) * | 1956-08-28 | 1959-05-12 | Mart Le Roy S De | Long retracting soot blower |
| US20070255415A1 (en) * | 2006-05-01 | 2007-11-01 | Sdgi Holdings, Inc. | Expandable intervertebral spacers and methods of use |
| US20170107006A1 (en) * | 2015-10-14 | 2017-04-20 | Alkar-Rapidpak, Inc. | Web packaging machines with variable depth forming |
| US9750618B1 (en) | 2016-11-29 | 2017-09-05 | Amendia, Inc. | Intervertebral implant device with independent distal-proximal expansion |
-
0
- US US196117D patent/US196117A/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2885711A (en) * | 1956-08-28 | 1959-05-12 | Mart Le Roy S De | Long retracting soot blower |
| US20070255415A1 (en) * | 2006-05-01 | 2007-11-01 | Sdgi Holdings, Inc. | Expandable intervertebral spacers and methods of use |
| US7708779B2 (en) * | 2006-05-01 | 2010-05-04 | Warsaw Orthopedic, Inc. | Expandable intervertebral spacers and methods of use |
| US20100168862A1 (en) * | 2006-05-01 | 2010-07-01 | Warsaw Orthopedic, Inc. | Expandable Intervertebral Spacers and Methods of Use |
| US8257442B2 (en) * | 2006-05-01 | 2012-09-04 | Warsaw Orthopedic, Inc. | Expandable intervertebral spacers and methods of use |
| US8579979B2 (en) * | 2006-05-01 | 2013-11-12 | Warsaw Orthopedic, Inc. | Expandable intervertebral spacers and methods of use |
| US20170107006A1 (en) * | 2015-10-14 | 2017-04-20 | Alkar-Rapidpak, Inc. | Web packaging machines with variable depth forming |
| EP3156339B1 (en) | 2015-10-14 | 2019-05-29 | Alkar-RapidPak, Inc. | Web packaging machine with variable depth forming |
| US10625892B2 (en) * | 2015-10-14 | 2020-04-21 | Alkar-Rapidpak, Inc. | Web packaging machines with variable depth forming |
| US11305905B2 (en) | 2015-10-14 | 2022-04-19 | Alkar-Rapidpak, Inc. | Web packaging machines with variable depth forming |
| US9750618B1 (en) | 2016-11-29 | 2017-09-05 | Amendia, Inc. | Intervertebral implant device with independent distal-proximal expansion |
| US10709572B2 (en) | 2016-11-29 | 2020-07-14 | Amendia, Inc. | Intervertebral implant device with independent distal-proximal expansion |
| US10758366B2 (en) | 2016-11-29 | 2020-09-01 | Amendia, Inc. | Intervertebral implant device with independent distal-proximal expansion |
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