US166753A - Improvement in rope-stretchers - Google Patents
Improvement in rope-stretchers Download PDFInfo
- Publication number
- US166753A US166753A US166753DA US166753A US 166753 A US166753 A US 166753A US 166753D A US166753D A US 166753DA US 166753 A US166753 A US 166753A
- Authority
- US
- United States
- Prior art keywords
- rope
- stretchers
- improvement
- head
- stretcher
- 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
- 241000435509 Prunus wilsonii Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
- F16G11/12—Connections or attachments, e.g. turnbuckles, adapted for straining of cables, ropes, or wire
Definitions
- My invention relates more especially to that class of rope-stretchers which are employed in the erection of derricks, rigging ships, 850.; and consists in a novel construction and arrangement of the parts, as hereinafter more fully set forth and claimed, by which a simpler, cheaper, and more effective device of this character is produced than is now in ordinary use.
- a A represent the rails or side pieces, which are firmly connected by nuts and bolts to the fixed heads B B. Disposed longitudinally midway between the rails there is a screw, G, one end of which is so connected with the head B as to be freely rotated therein, but not withdrawn therefrom, and the other end of which is journaled in the A sliding cross-head, 0, having the cap D and set-screws e e, is arranged to slide in ways or rundlets formed by the rails A A, a
- the fixed head B is elongated laterally to form the handle or lever L, and attached to the head B there is a curved guide, M.
- the swivel-link K is first made fast to a post or some unyielding object, and the end of the rope F carried under the guide M, and secured in the clamp O by means of the cap D and set-screws e e.
- the screw is then turned by vibrating the pawl-lever I to draw the clamp toward the head B, the torsional action of the rope to cant or revolve the stretcher being overcome by grasping the lever L.
- the object of the guide M is to prevent the vibration of the stretcher and keep it in line with the rope.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Description
C. 6. CU RTIS.
Rope-Stretcher.
N0,]66,753, Pa tentedAug.l7,l875.
i @Z M; 6 y Qq8 2 NvPETERS, PHOTO-UTHOGRAFHER. WlSHINGTON. D, C, v
. head B.
UNITED STATE PATENT OFFICE.
CHARLES C. CURTIS, OF STRATFORD, HAMPSHIRE.
lMPROVEMENT IN ROPE-STRETCHERS.
Specification forming part of Letters Patent No. 166,753., dated August 17, 1875; application filed March 24, 1875.
To all whom it may concern:
Be it known that I, CHARLES C. CURTIS, of Stratford, in the county of Coos, State of New Hampshire, have invented a certain new and useful Improvement in Rope-Stretchers, of which the following is a description sufficiently full, clear,- and exact to enable any person skilled in the art or science to which my invention appertains to make and use the same, reference being had to the accompanying drawing, forming a part of this specification, in which- Figure 1 is an isometrical perspective view, showing my improved rope-stretcher in use.
My invention relates more especially to that class of rope-stretchers which are employed in the erection of derricks, rigging ships, 850.; and consists in a novel construction and arrangement of the parts, as hereinafter more fully set forth and claimed, by which a simpler, cheaper, and more effective device of this character is produced than is now in ordinary use.
In the drawing, A A represent the rails or side pieces, which are firmly connected by nuts and bolts to the fixed heads B B. Disposed longitudinally midway between the rails there is a screw, G, one end of which is so connected with the head B as to be freely rotated therein, but not withdrawn therefrom, and the other end of which is journaled in the A sliding cross-head, 0, having the cap D and set-screws e e, is arranged to slide in ways or rundlets formed by the rails A A, a
there is a spur-wheel, H, and pivoted on the screw a lever, I, provided. with the pawl J, intersecting with the wheel. The fixed head B is elongated laterally to form the handle or lever L, and attached to the head B there is a curved guide, M.
In the use of my improved stretcher the swivel-link K is first made fast to a post or some unyielding object, and the end of the rope F carried under the guide M, and secured in the clamp O by means of the cap D and set-screws e e. The screw is then turned by vibrating the pawl-lever I to draw the clamp toward the head B, the torsional action of the rope to cant or revolve the stretcher being overcome by grasping the lever L.
The object of the guide M is to prevent the vibration of the stretcher and keep it in line with the rope.
What I claim is- In a rope-stretch er, constructed as described, the parallel rails A A, connected by the fixed heads B and B, the latter provided with the lever L, in combination with the sliding crosshead 0, clamping-levers e e, cap D, screw Gr, pawl J, and guide M, all arranged to operate substantially as and for the purpose set forth.
' CHARLES C. CURTIS. [L. 8.]
Witnesses:
J OHN M. WILSON, J r., G. P. WILSON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US166753A true US166753A (en) | 1875-08-17 |
Family
ID=2236162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US166753D Expired - Lifetime US166753A (en) | Improvement in rope-stretchers |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US166753A (en) |
-
0
- US US166753D patent/US166753A/en not_active Expired - Lifetime
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