US106933A - Improvement in tackle-blocks - Google Patents
Improvement in tackle-blocks Download PDFInfo
- Publication number
- US106933A US106933A US106933DA US106933A US 106933 A US106933 A US 106933A US 106933D A US106933D A US 106933DA US 106933 A US106933 A US 106933A
- Authority
- US
- United States
- Prior art keywords
- tackle
- blocks
- improvement
- straps
- clevis
- 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 8
- 238000010276 construction Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000003466 welding Methods 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
- B66D3/04—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
Definitions
- My improvement relates to the tackle-block with grooved cheeks and partitions fitted with iron straps
- Figure 1 is an elevation, partly in section, of a three-sheave block, embodying my invention.
- Figure 2 is a similar view of a two-sheave block.
- Figure 3 is a cross-sectionof one partition.
- the straps D D are not connected together to form the clevis by welding, as in m'y patent aforesaid, but
- the clevis H is bent to the desired form, and coni structed with eyes hy at the'ends, through which the holt P passes, the ends ot' the clevis fit-ting betweenl the strapsrin the manner shown.
- the bolt P is provided with :t nut, P', by which the parts can be drawn together, a sleeve, It, or other suitable device, heiuginserted between the iunerstraps, to form an abutment, against which the straps are forced by the action of the bolt.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Description
ltnited *guette JOSEPH F. HARCOURT,
OF CINCINNATI, OHIO.,V
Letters Paten-t No. 106,933, lated August 30, 1870.
IMPROVEMENT I TACKlhE-BLOCKS.
The Schedule referred to in these Letters Patent and making parl: of the same.
. 10 all lwhom it may concern:
Be it known that I, JOSEPH 1 .HAnooUuT, of Cini cinnat-i, Hamilton county, State of Ohio, have in- `vented a certain new and useful Improvement in .Tackle-Blocks; and I do vhereby declare the following to be a sufficiently full, clear, and exact description thereof to enable one skilled in the art to which my invention appertains to make and use it, reference being had to the accompanyingdrawing making part of this sl'ieciiicat-ion. Nature and Objects of Invention.
My improvement relates to the tackle-block with grooved cheeks and partitions fitted with iron straps,
for which Letters Patent were granted to me June 9,v
1863, and consists of alcertain new and peculiar device for connecting the straps of' the groovcd cheeks and partitions to the clevis of. the block; the object 'of my invention being to reduce the cost and didieulty of manufacture of this construction ot' tackleblo'ek, and provide a connection better adapted for the manufact-ure of large blocks, where great strength and stiffness are required.
Description of the Accompanying Drawing. Figure 1 is an elevation, partly in section, of a three-sheave block, embodying my invention.
Figure 2 is a similar view of a two-sheave block.
Figure 3 is a cross-sectionof one partition.
General Description. .k The cheeks A, end pieces B, and partitions C are connected together, and the straps D D' fitted into the grooves G G in the same manner as shown in my patent of J une 9, 1868.
The straps D D are not connected together to form the clevis by welding, as in m'y patent aforesaid, but
are slight-ly bent and formed, by drilling or punching with eyes d d', for thereception of a'bolt, P, which is made to pass through all the straps, as shown.
A The clevis H is bent to the desired form, and coni structed with eyes hy at the'ends, through which the holt P passes, the ends ot' the clevis fit-ting betweenl the strapsrin the manner shown.
The bolt P is provided with :t nut, P', by which the parts can be drawn together, a sleeve, It, or other suitable device, heiuginserted between the iunerstraps, to form an abutment, against which the straps are forced by the action of the bolt. r
It; will be seen, by reference to the drawing, that all the parts ot' this tackle-block can be finished separately, and to a template 0r gauge, and the block can, therefore, be manufactured cheaply, rapidly, and conveniently. For large, powerful, or wide blocks it is stronger, more durable and etiieient, and less liable to twist between the block and clevis than the one patented by me J une 9,1868, inasmuch as this construction admits of thestrain upon the 'straps being more equaliy divided, and the straps' directed toward the clevis in equal angles.
Claim. In the described connect-ion with a tackle-block constructed with groovcd and strapped cheeks and partiand eye-ended clevis H h, combined substantially in the manner and for the purpose specified.
In testimony of which invention I hereunto set my hand. f J. F.' HAROOURT. Witnesses:
FRANK MILLWARD, J. L. WAR'IJMANN.`
Publications (1)
Publication Number | Publication Date |
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US106933A true US106933A (en) | 1870-08-30 |
Family
ID=2176409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US106933D Expired - Lifetime US106933A (en) | Improvement in tackle-blocks |
Country Status (1)
Country | Link |
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US (1) | US106933A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090210750A1 (en) * | 2008-02-19 | 2009-08-20 | Sas Institute Inc. | Systems And Methods For Identifying Memory Leaks In A Computer System |
-
0
- US US106933D patent/US106933A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090210750A1 (en) * | 2008-02-19 | 2009-08-20 | Sas Institute Inc. | Systems And Methods For Identifying Memory Leaks In A Computer System |
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