US191824A - Improvement in lifting-jacks - Google Patents
Improvement in lifting-jacks Download PDFInfo
- Publication number
- US191824A US191824A US191824DA US191824A US 191824 A US191824 A US 191824A US 191824D A US191824D A US 191824DA US 191824 A US191824 A US 191824A
- Authority
- US
- United States
- Prior art keywords
- lever
- jacks
- lifting
- improvement
- jack
- 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
- 101700045773 CLIP1 Proteins 0.000 description 2
- 102100012873 MAGEH1 Human genes 0.000 description 2
- 101710027575 MAGEH1 Proteins 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000994 depressed Effects 0.000 description 2
- 230000036633 rest 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
- B66F15/00—Crowbars or levers
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S254/00—Implements or apparatus for applying pushing or pulling force
- Y10S254/01—Jack bases
Definitions
- each side of this board b is a standard, a, of any suitable dimensions, and which are separated from each other by the thickness of a board alone.
- a continuous slot, 6, which is shaped like a number of inverted J s, all of which are united together.
- lever 9 which has a pivot pin or bolt, '5, passing through it and through the two slots in the two standards.
- This pivot-bolt 'iallows the lever g to be moved freely up and down in the. slots, and serves as the pivot upon which the said lever operates.
- the slot here shown shows only three resting-places for this pivot-bolt; but the slot may be continued upward to any desired distance, so as to make as many restin g-places as may be desired.
- a support Fastened to the small end of the lever, and projecting downward, is a support, it. which may be of any suitable construction, so .that it will support the outer end of the lever, and prevent it from falling in the mud or causing a person to be constantly reaching downward to catch hold of the lever.
- a lifting-jack having its frame provided with vertical slots, and which is depressed by the weight applied to the end of the lever,
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Description
W. J. M. BATCHELDER.
LIF'IING-JACK.
No. 191,824. Patented J'une1Z,1877.
uni-ii WITNESSES WWW N. PETERS, PHDTO-LITHOGRAPHER. wAsHmsToN, n C
ape- 4 UNITED STATES WILLIAM J. M. BATGHELDER,
PATENT QFFIGE.
OF HONEY CREEK, INDIANA.
IMPROVEMENT IN LlFTlNG -JACKS.
Specification forming part of Letters Patent No. 191,824, dated J nne 12, 1877; application filed I May 11, 1877.
To all whom it may concern.-
Be it known that I, WILLIAM J. M. BATCH- ELDER, of Honey Creek, in the county of Henry and State of Indiana, have invented certain new and useful Improvements in Lifting-Jacks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.
thickness, and upon the top of which is secured the board I), which extends from one end to the other of the base along its center. Suitably secured to each side of this board b is a standard, a, of any suitable dimensions, and which are separated from each other by the thickness of a board alone. Through each'-- of these standards is made a continuous slot, 6, which is shaped like a number of inverted J s, all of which are united together.
Between the two standards is placed the lever 9, which has a pivot pin or bolt, '5, passing through it and through the two slots in the two standards. This pivot-bolt 'iallows the lever g to be moved freely up and down in the. slots, and serves as the pivot upon which the said lever operates.
The slot here shown shows only three resting-places for this pivot-bolt; but the slot may be continued upward to any desired distance, so as to make as many restin g-places as may be desired. By making this slot, the shape shown there'is no danger of the pivot-bolt slipping out of position after it has once been adjusted, as is always the case when the resting-places are not made as distinct as here shown.
Upon the top of the lever are made a number of notches, in which the loopl catches for the purpose of holding the lever in any desired position when a weight of any kind is hearing down upon its shorter end. Fastened to the small end of the lever, and projecting downward, is a support, it. which may be of any suitable construction, so .that it will support the outer end of the lever, and prevent it from falling in the mud or causing a person to be constantly reaching downward to catch hold of the lever.
Passing over the top of the base a, and through the mortises or slots in the board b; are the two axles 0, which have the wheels 1' upon each end. Bearing down upon the top of these two axles are the flat springs s, which springs are held down, at or near their centers, by means of the studs or projections t from the sides of the standards. These springs are sufficiently strong to keep the axles pressed down upon the top of the base a, and while held in this position the wheels extend below the lower side of the base a, and support the jack in such a manner that the jack can be readily drawn or pushed about from place to place. As soon, however, as a weight is applied to the short end of the operating-lever these springs yield sufficiently to allow the axles to rise upward in the slots until the Wheels no longer extend below the bottom of the base a, when the jack rests solidly upon the ground. As soon as the Weight is removed the springs depress the wheels again, and the whole weight of the jack is again brought to bear upon the wheels.
Having thus described my invention, I claim- 1. The lever g, provided with a support at its smaller end, for the purpose of keeping it raised above the ground, substantially as set forth.
2. The combination of the axles 0, wheels 0', board b, having slots therein, and springs s, substantially as specified.
3. A lifting-jack having its frame provided with vertical slots, and which is depressed by the weight applied to the end of the lever,
have hereunto set my hand this 7th day of so that the jack will settle down and rest sol- May, 1877.
WILLIAM JAMES M ADISON BA'ICHELDER.
Witnesses:
J AGOB SNIDEMAN, PATRIGK SMITH.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US191824A true US191824A (en) | 1877-06-12 |
Family
ID=2261231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US191824D Expired - Lifetime US191824A (en) | Improvement in lifting-jacks |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US191824A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2456218A (en) * | 1946-10-04 | 1948-12-14 | Kurt F Semisch | Jack support |
| US2563927A (en) * | 1948-09-10 | 1951-08-14 | Clarence C Clavert | Wheeled supporting platform attachment unit for jacks |
-
0
- US US191824D patent/US191824A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2456218A (en) * | 1946-10-04 | 1948-12-14 | Kurt F Semisch | Jack support |
| US2563927A (en) * | 1948-09-10 | 1951-08-14 | Clarence C Clavert | Wheeled supporting platform attachment unit for jacks |
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