US180552A - Improvement in lifting-jacks - Google Patents
Improvement in lifting-jacks Download PDFInfo
- Publication number
- US180552A US180552A US180552DA US180552A US 180552 A US180552 A US 180552A US 180552D A US180552D A US 180552DA US 180552 A US180552 A US 180552A
- Authority
- US
- United States
- Prior art keywords
- lifting
- lever
- jacks
- 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
- 241000490025 Schefflera digitata Species 0.000 description 2
- 240000006394 Sorghum bicolor Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 235000015250 liver sausages Nutrition 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
Definitions
- pawl at g which engages with the ratchet d.
- My invention consists in making the parts ratchet retains the load. of a lifting-jack so that they may be folded When it is desired to fold the lifting-jack, compactly together for storage or trausportathe lever E is removed and the standards 1) tion. and B folded, as shown in Fig. 3.
- A is a bed-piece, which consists of two Having thus described rnyinvention,I claim pieces framed together at right angles, to give as new and desire to secure by Letters Patthe jack a broad base.
- B is a standard, which ent is provided with braces a a, which turn in the The combination of the bed-piece A, folding eyes I) b.
- 'O is a brace, which is attached to standards B and D, and lever E, substantially the standard B so that it rests on the bedas shown and described.
- D is a THOMAS JEFFERSON COR-N. ratchet-bar or standard, which is pivoted at Witnesses: c, and is provided with the ratchet d and brace 1 J As. E. RUSSELL,
- E is a lever, having a fulcrum at f and 2.
Description
UNITED STATES PATE 1' OFFICE.
THOMAS J. CORN, OF SNI MILLS, MISSOURI, ASSIGNOR TO HIMSELF AND JAMES M. FAULK, OF SAME PLACE.
IMPROVEMENT IN LlFTlNG-JACKS- Specification forming part of Letters Patent N 0. 180,552, dated August 1, 1876; application filed June 26, 1876.
To all whom it may concern: pawl at g, which engages with the ratchet d.
Be it known that I, THOMAS J. CORN, of, The short end of the lever E is faced with an Sui Mills, Jackson county, Missouri, have in-- iron plate, h. The rod f, upon which the lever vented a new and Improved Lifting-Jack, of E has its fulcruin, is bent in such a manner which the following is a specification: that it acts as a brace. The standard B is Figure 1 is a side elevation, Fig. 2 is an end provided with holes 2' for adjusting the height elevation, and Fig. 3 is a side View, of the deof the lever E. 1
vice when folded. This jack is used in the ordinary way-the Similar letters of reference indicate correshort end of the lever being placed under the sponding parts. load and the longer end pressed down, the
My invention consists in making the parts ratchet retains the load. of a lifting-jack so that they may be folded When it is desired to fold the lifting-jack, compactly together for storage or trausportathe lever E is removed and the standards 1) tion. and B folded, as shown in Fig. 3.
A is a bed-piece, which consists of two Having thus described rnyinvention,I claim pieces framed together at right angles, to give as new and desire to secure by Letters Patthe jack a broad base. B is a standard, which ent is provided with braces a a, which turn in the The combination of the bed-piece A, folding eyes I) b. 'O is a brace, which is attached to standards B and D, and lever E, substantially the standard B so that it rests on the bedas shown and described.
piece when the standard is vertical. D is a THOMAS JEFFERSON COR-N. ratchet-bar or standard, which is pivoted at Witnesses: c, and is provided with the ratchet d and brace 1 J As. E. RUSSELL,
e. E is a lever, having a fulcrum at f and 2. JOHN R. MoYERs.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US180552A true US180552A (en) | 1876-08-01 |
Family
ID=2249958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US180552D Expired - Lifetime US180552A (en) | Improvement in lifting-jacks |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US180552A (en) |
-
0
- US US180552D patent/US180552A/en not_active Expired - Lifetime
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