US90213A - Improvement in snatch-blocks - Google Patents
Improvement in snatch-blocks Download PDFInfo
- Publication number
- US90213A US90213A US90213DA US90213A US 90213 A US90213 A US 90213A US 90213D A US90213D A US 90213DA US 90213 A US90213 A US 90213A
- Authority
- US
- United States
- Prior art keywords
- blocks
- improvement
- snatch
- rope
- hinge
- 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
- 235000008247 Echinochloa frumentacea Nutrition 0.000 description 1
- 240000004072 Panicum sumatrense Species 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/046—Openable pulley blocks
Definitions
- This invention relates to improvements in tackleblocks, Such as are used for supporting pulleys for raising heavy weights, by means of ropes passing through the said blocks over thc pulleys, and is designed to provide a means for readily discharging the rope therefrom, or engaging it therewith, without the labor and delay of drawing the rope lengthwisethrough the opening.
- Figure l represents aside elevation of my improved tackle-block, with a part broken out
- Figure 2 represents a plan view of the same.
- vI propose to separate them, and make the one, B, shorter than the other, and hinge thereto a slotted strong bar, D, for supporting the swivel-hook E, and having a hooked end, F, for engaging with the slotted catch C, the arrangement being such that when the two parts are engaged, the hook, by which the block is suspended from its fastening, will rise vertically from the block.
- the rope being in a slaekened condition, may be quickly placed in position on the pulley, or removed therefrom, by disen gagin g the bar D from the cat-ch C,
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Farming Of Fish And Shellfish (AREA)
Description
tnte
Weeesew @anni GB Letters Patent No. 90,213, dated May 18, 1869.
IMPROVEMENT IN SNATCH-BLOCKS.
The Schedule referred to in these Letters Patent and making part of the sama.
To all whom it may concern.-
Be it known that I, H. O. WINSOR, of Duxbury, in the county of' Plymouth, andiState of' liassachusetts, have invented a new and useful Improvement in Tackle- Blocks; and I do hereby declare that the following is a full, clear,.and exact description thereof, which will enable others skilled in the art to make and use the saine, reference being had to the acconn'ninying drawings, forming part of this specification.
This invention relates to improvements in tackleblocks, Such as are used for supporting pulleys for raising heavy weights, by means of ropes passing through the said blocks over thc pulleys, and is designed to provide a means for readily discharging the rope therefrom, or engaging it therewith, without the labor and delay of drawing the rope lengthwisethrough the opening.
It consists in an arrangement of jointed and hinged fastening for the hooks, by which the blocks are suspended,capable of being opened for the admission o1 discharge of the rope, as will be hereinafter specified,
Figure l represents aside elevation of my improved tackle-block, with a part broken out, and
Figure 2 represents a plan view of the same.
Similar letters of reference indicate corresponding parts.
Instead of joining the upper ends of the two sides A B of the fblock rigidly, as they are now commonly formed, vI propose to separate them, and make the one, B, shorter than the other, and hinge thereto a slotted strong bar, D, for supporting the swivel-hook E, and having a hooked end, F, for engaging with the slotted catch C, the arrangement being such that when the two parts are engaged, the hook, by which the block is suspended from its fastening, will rise vertically from the block. Y
The rope, being in a slaekened condition, may be quickly placed in position on the pulley, or removed therefrom, by disen gagin g the bar D from the cat-ch C,
stantially as specified.
' H. O. WINSOR. Witnesses:
ALLEN PRIOR, JosmH PETERSON.
catch,0, and to the end of the Vother part, I hinge a and turning it back on its hinge, by which much time`
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US90213A true US90213A (en) | 1869-05-18 |
Family
ID=2159692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US90213D Expired - Lifetime US90213A (en) | Improvement in snatch-blocks |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US90213A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3151857A (en) * | 1962-10-05 | 1964-10-06 | Douglass R Falkenberg | Pulley holddown |
-
0
- US US90213D patent/US90213A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3151857A (en) * | 1962-10-05 | 1964-10-06 | Douglass R Falkenberg | Pulley holddown |
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