US119157A - Improvement in gr - Google Patents
Improvement in gr Download PDFInfo
- Publication number
- US119157A US119157A US119157DA US119157A US 119157 A US119157 A US 119157A US 119157D A US119157D A US 119157DA US 119157 A US119157 A US 119157A
- Authority
- US
- United States
- Prior art keywords
- grapple
- swivel
- pole
- jaws
- slot
- 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
- 210000001847 Jaw Anatomy 0.000 description 24
- 210000003128 Head Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 241000183290 Scleropages leichardti Species 0.000 description 2
- 230000002493 climbing Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002965 rope Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/64—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for T- or I-section beams or girders
Definitions
- Figure l of the drawing is a side view of my invention.
- Fig. 2 is a top view of the same.
- This invention has relation to grapples, to be used chieily for suspending hay-forks from the ceilings of barns; and it consists in the construction and novel arrangement of parts of a grapple whereby the operator is enabled to adjust it to its proper position without the trouble of climbing up to the barn-ceiling, and to take it down without danger of its slipping from .the pole and falling on him.
- a A represent a pair of-curved jaws pivoted'together. rlhe lower half of the jaws A is slotted longitudinally and the jaw A placed within the slot.
- B B represents a pair of togglearms; B is pivoted at its upper end to the lower end of the slotted jaw Al and within the slot before mentioned.
- Bf is slotted or double,
- the lower ends of the toggles B B are pivoted together at their lower ends and support a swivel, C, and hook O.
- the pin D which holds the lower ends of the toggles and the swivel together, is formed with an eye, d, to receive the end of a pole, E, which is used to raise the grapple to the barn-ceiling.
- the head of said pole should properly be iron, and a shoulder should be formed to prevent it from going too far through the eye el.
- a slot is cut at one side ofthe eye to admit a Stud, d', projecting from one side of the head of the pole E.
- the pole In preparing to raise the grapple the pole 'is fixed in the eye by putting the stud through the slot and then turning the pole halfway round to 4keep it from falling out. Afterward the grapple is raised and the point of one of its jaws hooked to the side of arafter or beam. The poleis then pulled down until the other jaw catches the opposite side of the rafter or beam. The fork is hung to the swivel-hook by pulleys, ropes, or other contrivances. Near the point of each jaw a shoulder, e, is formed to prevent the point from sinking too deep into the wood. It will be understood that the jaws are to be kept open while being raised.. They-should also be firmly held in such a position.
- I extend one Side of the swivel above the other and cut a vertical slot in its end to receive the projecting end of the pivot c connecting the jaws.
- the object in view in making one of the jaws and one of the togglearms double, and placing them, respectively, on opposite sides of the grapple, is to give greater strength by throwing alll the strain toward the center. In taking down the grapple the notched end of the swivel is raised in such a manner as to receive the projecting endof the pivot so that the grapple will be balanced and cannot fall.
Description
PATENT i OFFICE.
CHARLES LA now, 0E SOUTH cnnwnr, NEw YQEK.
IMPROVEMENT IN GRAPPLES.
Specification forming part of Letters Patent No. 119,157, dated September 19, 1871.
To all whom it may concern: i
Be it known that I, CHARLES LA Dow, of South Galway, in the county of Saratoga and State of New York, have invented a new and valuable Improvement in Grapples; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing making a part of this specification, and to the letters and igures of reference marked thereon.
Figure l of the drawing is a side view of my invention. Fig. 2 is a top view of the same.
This invention has relation to grapples, to be used chieily for suspending hay-forks from the ceilings of barns; and it consists in the construction and novel arrangement of parts of a grapple whereby the operator is enabled to adjust it to its proper position without the trouble of climbing up to the barn-ceiling, and to take it down without danger of its slipping from .the pole and falling on him.
In the accompanying drawing illustrating my invention, A A represent a pair of-curved jaws pivoted'together. rlhe lower half of the jaws A is slotted longitudinally and the jaw A placed within the slot. B B represents a pair of togglearms; B is pivoted at its upper end to the lower end of the slotted jaw Al and within the slot before mentioned. Bf is slotted or double,
and pivoted to the lower end of jaw A, which is placed within the slot or betweenthe two bars composing B. The lower ends of the toggles B B are pivoted together at their lower ends and support a swivel, C, and hook O. The pin D, which holds the lower ends of the toggles and the swivel together, is formed with an eye, d, to receive the end of a pole, E, which is used to raise the grapple to the barn-ceiling. The head of said pole should properly be iron, and a shoulder should be formed to prevent it from going too far through the eye el. A slot is cut at one side ofthe eye to admit a Stud, d', projecting from one side of the head of the pole E.
In preparing to raise the grapple the pole 'is fixed in the eye by putting the stud through the slot and then turning the pole halfway round to 4keep it from falling out. Afterward the grapple is raised and the point of one of its jaws hooked to the side of arafter or beam. The poleis then pulled down until the other jaw catches the opposite side of the rafter or beam. The fork is hung to the swivel-hook by pulleys, ropes, or other contrivances. Near the point of each jaw a shoulder, e, is formed to prevent the point from sinking too deep into the wood. It will be understood that the jaws are to be kept open while being raised.. They-should also be firmly held in such a position. so as not to fall to either side and thereby prevent them from catching the wood. For this purpose I extend one Side of the swivel above the other and cut a vertical slot in its end to receive the projecting end of the pivot c connecting the jaws. The object in view in making one of the jaws and one of the togglearms double, and placing them, respectively, on opposite sides of the grapple, is to give greater strength by throwing alll the strain toward the center. In taking down the grapple the notched end of the swivel is raised in such a manner as to receive the projecting endof the pivot so that the grapple will be balanced and cannot fall.
What I claim as my invention,- and desire to secure by Letters Patent, is-
1. The grapple herein described, having'the swivel G constructed with the slotted end to receive the pivot a, substantially as described.
2. In a grapplingl device, the pin I) having the slotted eye d, and pole E having the stud d', in combination with the jaws A A and swivel C, as and for the purpose specified.
In testimony that I claim the above I have hereunto subscribed my name in the presence of two Witnesses.
CHARLES LA DOW.
Witnesses:
M. MoWILLrAMs, JOHN LA Dew. (63.)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US119157A true US119157A (en) | 1871-09-19 |
Family
ID=2188610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US119157D Expired - Lifetime US119157A (en) | Improvement in gr |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US119157A (en) |
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0
- US US119157D patent/US119157A/en not_active Expired - Lifetime
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