US93512A - Improved lifting-jack - Google Patents
Improved lifting-jack Download PDFInfo
- Publication number
- US93512A US93512A US93512DA US93512A US 93512 A US93512 A US 93512A US 93512D A US93512D A US 93512DA US 93512 A US93512 A US 93512A
- Authority
- US
- United States
- Prior art keywords
- jack
- lever
- lifting
- improved lifting
- load
- 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
- 210000003467 Cheek Anatomy 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 210000001847 Jaw Anatomy 0.000 description 2
- 241000306729 Ligur Species 0.000 description 2
- 230000000875 corresponding Effects 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
- B66F15/00—Crowbars or levers
Definitions
- Figure 2 a view of the jack in' position, when the load is lifted, with the operating-lever on the front side.
- the object of my invention is to produce a simple machine, of great power, for lifting loads in an expe ditious manner.
- This cheek 1) is bound with metal, and thecnds of the fulcrum A, beam B, and lever C, are also metal bound when the jael; is made of wod; when made of.
- a lifting-jack consisting of fulcrum-post A, lifting- .beam B, lever C, andcheek D, when constructed to operate substantially as described.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Road Signs Or Road Markings (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Description
@met @Mire JAMES VB. AUsBoURNE, 0E MILWAUKEE, W'IsOoNsIN, ASSIGNOR To HIMSELF ANDHIRAM MALLGRY, 0F SAME PLACE.
Letters Patent No. 93,512,datell August 10, 1869; antef'lated August 5, 1869.
The Schedule referred to i these Letters Patente-nd m'akng'ba'rt bf the same.
To all whom it may concern.
Be it known that JAMES B. AUsBoUnNE, of the city and county of Milwaukee, and State of Wisconsin, have invented a new and useful Improvement in I .ifting-Jacks; and I do- -hereby declare that the foL lowing is a full, clear, and exact description thereof, whichwill enable those skilled i'u'the art to make and use the sanne, reference being had to the accompanying drawing, forming part of this specification, in which- Figure l is a view of the jack, set ready for lifting a load, with the opelating-lever on the back side.
Figure 2, a view of the jack in' position, when the load is lifted, with the operating-lever on the front side.
Similar letters of reference, in each of tlxe.ligures, indicate corresponding parts.
The object of my invention is to produce a simple machine, of great power, for lifting loads in an expe ditious manner.
A, the fnlerum-stamlard.
B, the lifting-beam.
C, operating-lever.
D, cheek or jaw, forming a part of the fiame oppo site lever O, through which pass bolts, as shown.
This cheek 1) is bound with metal, and thecnds of the fulcrum A, beam B, and lever C, are also metal bound when the jael; is made of wod; when made of.
raise the load, moving, as shown iu the red dotted.
lines, till it assumes the position shownin fig. 2, the beam B resting one end on the ground and the other ou fulcrum A, where it will remain without the necessity of using any fastening to keep-it there.
When the load is to be lowered, take hold of lever C, draw it back, as shown in the dotted lines in fig. 2, till it is backzo the position shown in fig. 1.l
W'liat I claim as my invention, and desire to secure by Letters Patent, is-
A lifting-jack, consisting of fulcrum-post A, lifting- .beam B, lever C, andcheek D, when constructed to operate substantially as described.
' JAMES B. AUSBOURNE.
Witnesses:
PEBUY B. SMITH, FRANCIS BENINGHAUSEN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US93512A true US93512A (en) | 1869-08-10 |
Family
ID=2162989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US93512D Expired - Lifetime US93512A (en) | Improved lifting-jack |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US93512A (en) |
-
0
- US US93512D patent/US93512A/en not_active Expired - Lifetime
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