US141700A - Improvement in wagon-jacks - Google Patents
Improvement in wagon-jacks Download PDFInfo
- Publication number
- US141700A US141700A US141700DA US141700A US 141700 A US141700 A US 141700A US 141700D A US141700D A US 141700DA US 141700 A US141700 A US 141700A
- Authority
- US
- United States
- Prior art keywords
- wagon
- jacks
- bar
- lever
- lifting
- 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
- 241000490025 Schefflera digitata Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 235000015250 liver sausages Nutrition 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
- This invention relates to the construction of jacks for raising carriages and wagons and consists in the construction, arrangement, and combination of parts hereinafter described.
- the drawing represents a side elevation, showing the. jack applied to a wagon, but with the outside removed to show the arrangement of parts.
- A is the stand, consisting of two plates, B, separated by a longitudinal strip, 0, a baseblock, and the block D, all of which are about the thickness of the lifting-bar and lever, but which allow the lifting-bar and lever free play between the plates or sides B.
- E is the lifting-bar, which is provided with a slot, F, in which slot is a stationary pin, G, for limiting its vertical motion.
- the bar is confined between the plates or sides B by the strip 0 and block -D.
- the lower end of the bar is cut on a circle, as represented, so that the end of the lever will always lift without binding it or causing undue friction.
- H is the lever, the fulcrum of which is at the point I.
- This lever is provided with a series of ratchet-notches, J.
- K is a pawl attached to the stand, which engages into the notches J, as seen in the drawing.
- the pawl holds the lever and lifting-bar in position when the latter is loaded.
- L L are friction-rolls to prevent friction against the edges of the lifting-bar.
- a lifting-jack composed of a stand, A, slotted lifting-bar E, lever H, and roller and pin, as shown and described.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Escalators And Moving Walkways (AREA)
Description
N. [)HANDALL.v
Wagon-Jacks.
No. 141,700. Pate nted Augustl2,l873.
witnesses: Inventor:
@4 a/O 4 (7W Per Anomays.
UNITED STATES PATENT OFFICE.
NELSON ORANDALL, OF WOOSTER, OHIO.
. IMPROVEMENT IN 'WAGON-JACKS.
Specification forming part of Letters Patent No. 141,700, dated August 12, 1873 application filed June 28, 1873.
To all whom it may concern:
Be it known that I, NELsoN CRANDALL, of Wooster, in the county of Wayne and State of Ohio, have invented a new and useful Improvement in Wagon-Jacks, of which the following is a specification:
This invention relates to the construction of jacks for raising carriages and wagons and consists in the construction, arrangement, and combination of parts hereinafter described.
The drawing represents a side elevation, showing the. jack applied to a wagon, but with the outside removed to show the arrangement of parts.
Similar letters of reference indicate corresponding parts.
A is the stand, consisting of two plates, B, separated by a longitudinal strip, 0, a baseblock, and the block D, all of which are about the thickness of the lifting-bar and lever, but which allow the lifting-bar and lever free play between the plates or sides B. E is the lifting-bar, which is provided with a slot, F, in which slot is a stationary pin, G, for limiting its vertical motion. The bar is confined between the plates or sides B by the strip 0 and block -D. The lower end of the bar is cut on a circle, as represented, so that the end of the lever will always lift without binding it or causing undue friction. H is the lever, the fulcrum of which is at the point I. This lever is provided with a series of ratchet-notches, J. K is a pawl attached to the stand, which engages into the notches J, as seen in the drawing. The pawl holds the lever and lifting-bar in position when the latter is loaded. When the pawl is removed the long end of the lever will rise, and the lifting-bar will drop by its own gravity. L L are friction-rolls to prevent friction against the edges of the lifting-bar.
This is a very cheaply-constructed, durable, and efficient jack, very light, and not liable to get out of order, and its advantages must be obvious to all. A
Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A lifting-jack composed of a stand, A, slotted lifting-bar E, lever H, and roller and pin, as shown and described.
2. In combination with the bar E beveled on its lower end, as shown, the lever H, pivoted at I, and cooperating therewith, as shown and described.
NELSON GRANDALL.
Witnesses J. A. CRANDALL, GEORGE F. KINGSLEY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US141700A true US141700A (en) | 1873-08-12 |
Family
ID=2211113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US141700D Expired - Lifetime US141700A (en) | Improvement in wagon-jacks |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US141700A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040052481A1 (en) * | 2002-09-18 | 2004-03-18 | Francois Seguin | Optical component packaging device |
-
0
- US US141700D patent/US141700A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040052481A1 (en) * | 2002-09-18 | 2004-03-18 | Francois Seguin | Optical component packaging device |
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