US260508A - Halp to eobbet macdonald - Google Patents
Halp to eobbet macdonald Download PDFInfo
- Publication number
- US260508A US260508A US260508DA US260508A US 260508 A US260508 A US 260508A US 260508D A US260508D A US 260508DA US 260508 A US260508 A US 260508A
- Authority
- US
- United States
- Prior art keywords
- pivoted
- macdonald
- eobbet
- halp
- bar
- 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
- 238000006968 MacDonald synthesis reaction Methods 0.000 title 2
- 210000003414 Extremities Anatomy 0.000 description 4
- CVRALZAYCYJELZ-UHFFFAOYSA-N (±)-Leptophos Chemical compound C=1C=CC=CC=1P(=S)(OC)OC1=CC(Cl)=C(Br)C=C1Cl CVRALZAYCYJELZ-UHFFFAOYSA-N 0.000 description 2
- 210000000614 Ribs Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000881 depressing Effects 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 239000002965 rope Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/02—Manually-operated, e.g. lever-actuated, devices operating on ropes, cables, or chains for hauling in a mainly horizontal direction
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
- E02B17/0836—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Drawing Aids And Blackboards (AREA)
Description
(ModeL) N. VAN HILT'MAY'ER.
STUMP BXTRAGTOR.
.7 Patented July 4,1882.
N4 PETERS. moutho m lw. Wahingiom n. C.
UNITED STATES PATENT OFFICE,
NIKLAS VAN HILTMAYER, OF PORT HURON, MICHIGAN, ASSIGNOR OF ONE- HALF TO ROBERT MACDONALD, OF INGERSOLL, ONTARIO, CANADA.
STU M P- EXTRACTO R.
SPECIFICATION forming part of Letters Patent No. 260,508, dated July 4, 1882.
Application filed October 1 1881. ModeL) To all whom it may concern Be it known that I, NIKLAsVAN HILT- MAYER, of Port Huron, in the county of St. Clair and State of Michigan, have invented a new and Improved Stump-Lifter; and I hereby declare the following to be a full, clear, and exact description thereof, reference being had to the figure representing a side view in the accompanying drawing, making a part of this specification.
The object of my invention is to provide a stump-puller easily transportable, cheapin construction, and extensive in power; and it consists of a frame provided with links to attach it to a tripod or other support, and carrying oscillating linked levers, in combination with a vertical sliding rod or bar provided with holes and pins, as hereinafter more fully described.
In order that those skilled in the art can make and use my invention, I will proceed to describe the manner in which I have carried it out.
In the said drawing, A is a frame, coinposed of two plates, a a, divided by transverse ribs or rods betweentheir ends, and bolted together by bolts b b b b, and having cut entirely through both the plates slots I 1, provided with links f f, by which to suspend it.
Passing between plates at a is a bifurcated lever, D D, and it is pivoted at c. Pivoted to the said levers extremity, at n, is a bar or rod, S, having its other end pivoted in lever E E at P; and pivoted at m on lever D D is abar or rod, S, having its other end pivoted to the.
end of another bifurcated lever, E E, at 0. Lever E E is constructed like D D, and is pivoted in the frame at c. In each instance thelegs of the bifurcated levers are inclosed in the plates a a, and rest on their pivots on each side of it, and are connected with levers or handles H H by bars or rods G G, pivoted at g g and h it, while thelevers or handles H H are pivoted at k k to transverse plates or bars between plates or a and bolted byholt-s b b;
Plates a a have a vertical longitudinal cut, r, in them, through which passes a sliding bar, B B, perforated with a line of holes, at d, to suit the size of pins, 12 1), designed to be placed in them. It will be seen that the bars or rods S S and G G always keep the levels D D and E E parallel, and require them to move in opposite directions, and they become levers of the first order alternately as they change position, the pivots e 0' being the fulcrums. At the lower end of bar B B is a head, T, to fasten to the tackle or rope around the stump.
The operation is as follows: Links ff are fastened to the tripod, tree, limb, or any convenient resisting medium, and the head T fastened to the stump, pin pbeinginserted through slot I into one of the holes in bar B, and lever D D resting against it. When power is applied to handle H to force it down, the bar 13 is forced upward, depressing the end of lever E E so far that a pin can be placed over it through slot 1', and it in turn lifts bar B until the levers come back into the original position, when the operation is repeated, the pins being moved from hole to hole, gradually forcing bar B upward, and with it the stump.
Having thus fully described my invention,
what I claim as new, and desire to secure by Letters Patent, is
The frame A, constructed as described, and perforated sliding bar B, in combination with levers D D and E E and handles H H, pivoted at 0 e and k k, and provided with conlnecting bars or rods S S and G G and the pins 19 p, as set forth.
, NIKLAS VAN HILTMAYER. Witnesses:
ROBERT MCDONALD, HoRAcE BAKER.
Publications (1)
Publication Number | Publication Date |
---|---|
US260508A true US260508A (en) | 1882-07-04 |
Family
ID=2329787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US260508D Expired - Lifetime US260508A (en) | Halp to eobbet macdonald |
Country Status (1)
Country | Link |
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US (1) | US260508A (en) |
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0
- US US260508D patent/US260508A/en not_active Expired - Lifetime
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