US56087A - Improvement in tackle-block sheaves - Google Patents
Improvement in tackle-block sheaves Download PDFInfo
- Publication number
- US56087A US56087A US56087DA US56087A US 56087 A US56087 A US 56087A US 56087D A US56087D A US 56087DA US 56087 A US56087 A US 56087A
- Authority
- US
- United States
- Prior art keywords
- tackle
- improvement
- sheaves
- cheeks
- block sheaves
- 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 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 6
- 210000002832 Shoulder Anatomy 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002965 rope Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H55/44—Sheet-metal pulleys
Definitions
- A represents a sheave composed of a metal pulley, B, ⁇ and Wooden cheeks C.
- the pulley B is cast of iron, brass, or other suitable material, with a grooved rim, a, which connects by four (more or less) arms, b, with the central hub, c.
- the rim a is provided With tWo shoulders, d, Which serve to support the cheeks C, which are turned or otherwise produced of Wood.
- Suitable projections or spurs e are applied on the inner circumference of the rim a, and after the cheeks have been adjusted in the desired position these projections or spurs are turned down over their edges, so as to unite the same firmly and securely with the metal pulley.
- My sheave can be made of such a size that it works comparatively slow on the center4 pin, and that it is easy for the rope, which has to conform to its circumference, and yet it is light enough to be used on any place Where sheaves are generally used.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
Description
UNITED STATES PATENT OFFICE..
JOSEPH W. NORCROSS, OF MIDDLETOWN, CONNECTICUT.
IMPROVEMENT IN TACKLE-BLOCK lSHEAVES.
Specification forming part of Letters Patent N0. 56,087, dated July 3, 1866.
To all 'whom 'it may concern Be it known that I, JOSEPH W. NoRoEoss, of Middletown, Middlesex county, State of Connecticut, have invented a new and useful Improvement in Tackle-Block Sheaves; 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 same, reference being had to the accompanying` drawings, forming part of this specification, in which- Figure l represents a transverse section of this invention. Fig. 2 is a side elevation of the same, partly in section.
Similar letters of reference indicate like parts.
` and desirable sheave is produced, Which combines the advantages of ordinary metal sheaves With those of ordinary Wooden sheaves.
A represents a sheave composed of a metal pulley, B,` and Wooden cheeks C. The pulley B is cast of iron, brass, or other suitable material, with a grooved rim, a, which connects by four (more or less) arms, b, with the central hub, c. The rim a is provided With tWo shoulders, d, Which serve to support the cheeks C, which are turned or otherwise produced of Wood. Suitable projections or spurs e are applied on the inner circumference of the rim a, and after the cheeks have been adjusted in the desired position these projections or spurs are turned down over their edges, so as to unite the same firmly and securely with the metal pulley.
By these means I am enabled to produce a sheave which combines the advantages of ordinary iron and Wooden sheaves. It is strong and durable and not liable to Wear out, and it can be made sufficiently large to Work easy Without being too heavy, \vhereas iron sheaves of the ordinary construction, when made large enough to Work easy, become altogether too heavy to be put on vessels aloft, and wooden pulleys, even if bushed With metal, Wear out in a short time.
My sheave can be made of such a size that it works comparatively slow on the center4 pin, and that it is easy for the rope, which has to conform to its circumference, and yet it is light enough to be used on any place Where sheaves are generally used.
What I claim as new, and desire to secure by Letters Patent, is-
A sheavel composed of a metal pulley, B, and Wooden cheeks, as a new article of manufacture, when composed of the shoulders d or the rim a, to support the cheeks C, and the projections or spurs e on the rim, to retain the cheeks in position, substantially as described. Y
JOSEPH W. NORCROSS. Witnesses:
WM. F. MGNAMARA, W. HAUEF.
Publications (1)
Publication Number | Publication Date |
---|---|
US56087A true US56087A (en) | 1866-07-03 |
Family
ID=2125627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US56087D Expired - Lifetime US56087A (en) | Improvement in tackle-block sheaves |
Country Status (1)
Country | Link |
---|---|
US (1) | US56087A (en) |
-
0
- US US56087D patent/US56087A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US56087A (en) | Improvement in tackle-block sheaves | |
US5186A (en) | Ship s block | |
US55162A (en) | Improvement in swivel-shackles | |
US45248A (en) | Improved self-acting pulley-brake | |
US57316A (en) | Improved block-and-tackle check | |
US44582A (en) | Improved jib-sail ring | |
USRE1853E (en) | Improved attachment for tackle-blocks | |
US50607A (en) | Samuel m | |
USRE1932E (en) | Improvement in tackle-blocks | |
US3421A (en) | w waterman | |
US73653A (en) | Samuel roebuck and john roebuck | |
US90422A (en) | Improved dumb waptbr | |
US88564A (en) | Improvement in barrel-trucks | |
US78663A (en) | Joseph f | |
US59496A (en) | Improved manner of strapping blocks | |
US68193A (en) | Improvement in elevating-block | |
US59880A (en) | William s | |
US81667A (en) | Ferdinand moobe and george hastie | |
US88751A (en) | Improvement in wood-pulley bush | |
US47471A (en) | Improvement in pulley-blocks | |
US60614A (en) | Improved tackle block | |
US663905A (en) | Pulley-block. | |
US56754A (en) | Improved construction and rigging of trestle-trees for vessels | |
USRE2020E (en) | Improved self-acting pulley-brake | |
US94336A (en) | Improved skate-runner |