US152703A - Improvement in canal-boat derricks - Google Patents

Improvement in canal-boat derricks Download PDF

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US152703A
US152703A US152703DA US152703A US 152703 A US152703 A US 152703A US 152703D A US152703D A US 152703DA US 152703 A US152703 A US 152703A
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boat
canal
derricks
crane
improvement
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/52—Floating cranes

Definitions

  • My invention relates to canal-boats provided with bridges for taking in and letting out the horses 5 and the nature of my invention consists in the construction and arrangement ofthe crane or derrick for operating the bridge, whereby the crane may be lowered to the deck of the boat when not in use, substantially as hereinafter more fully set forth.
  • Figure l is a side View of a part of a canal-boat with a crane embodying my invention.
  • Fig. 2 is a plan View of the same.
  • Fig. 3 is an enlarged side view of a part of the crane.
  • A represents a part of an ordinary canalboat, in the deck of which are fastened two or more flanged sockets'or tubes, B, extending verticallydown through the same.
  • C represents the post of the crane, provided with the arm I), extending out horizontally at the upper end, in the usual manner.
  • a sliding carriage, E operated by means of a rope or chain, a, and windlass b.
  • cl is another windlass, with rope or chain c passing over pulleys in the carriage, tohoist the bridge G, and lower the same, when desired.
  • a brace, J which, when the crane is iu use, is thrown against the post C, and the lower end of the brace enters a notch, a', on the post, and forms a stop against the upper flanged end of the socket B, preventing the crane from sinking down therein, while it allows it to turn freely in the socket.
  • the brace J When the crane is not to be used, the brace J is thrown out under and against the arm D, and the post C sinks down in the socket, so that the arm with its attachment will rest on the deck of the boat, and be out of the way.

Description

UNITED STATEs PATENT OEEJLCE SENECA STEVENS, OF AUBURN, NE`W YORK.
IMPROVEMENT IN CANAL-BOAT DERRICKS.
Specification forming part of Letters Patent No. 152,703, dated June 30, 1874; application filed June 15, 1874.
To all whom it may concern:
Be it known that I, SENECA STEvENs, of Auburn, in the county of Cayuga and State of New York, have invented certain new and useful Improvements in Canal-Boat Derricks or Cranes; andA I do hereby declare that the following is a full, clear, and exact description thereof, reference beinghad to the accompanyin g drawings and to the letters of reference marked thereon, whichjorm part of this specication.
My invention relates to canal-boats provided with bridges for taking in and letting out the horses 5 and the nature of my invention consists in the construction and arrangement ofthe crane or derrick for operating the bridge, whereby the crane may be lowered to the deck of the boat when not in use, substantially as hereinafter more fully set forth.
ln the accompanying drawing, Figure lis a side View of a part of a canal-boat with a crane embodying my invention. Fig. 2 is a plan View of the same. Fig. 3 is an enlarged side view of a part of the crane.
A represents a part of an ordinary canalboat, in the deck of which are fastened two or more flanged sockets'or tubes, B, extending verticallydown through the same. C represents the post of the crane, provided with the arm I), extending out horizontally at the upper end, in the usual manner. Upon this arm is a sliding carriage, E, operated by means of a rope or chain, a, and windlass b. cl is another windlass, with rope or chain c passing over pulleys in the carriage, tohoist the bridge G, and lower the same, when desired. These parts are all constructed in any of the known and usual ways. At a suitable point on the arin D is pivoted a brace, J, which, when the crane is iu use, is thrown against the post C, and the lower end of the brace enters a notch, a', on the post, and forms a stop against the upper flanged end of the socket B, preventing the crane from sinking down therein, while it allows it to turn freely in the socket.
When the crane is not to be used, the brace J is thrown out under and against the arm D, and the post C sinks down in the socket, so that the arm with its attachment will rest on the deck of the boat, and be out of the way.
Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-
'Ihe combination of crane C I) with socket u B and brace' J, the part C sliding in the socket, thus allowing` the crane or derrick to rest upon y the deck of the boat when not in use, substan- SENECA STEVENS.
Vitnesses:
'IHEoDoRE J. DICKERsCN, HORACE T. COOK.
US152703D Improvement in canal-boat derricks Expired - Lifetime US152703A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519910A (en) * 1946-09-23 1950-08-22 Kershaw Royce Derrick

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519910A (en) * 1946-09-23 1950-08-22 Kershaw Royce Derrick

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