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US3872815A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for assembling blocks of a hull

Assignee: JFE Engineering Corp
•
Filing: 1973-10-17
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Granted: 1975-03-25
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Expires: 1993-10-17
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Abstract

Abstract Apparatus for assembling blocks of a hull which comprises as many carriages as there are floor plates to be welded, the carriages being arranged on at least one pair of parallel rails fixedly mounted on a standard bed, each carriage comprising a pair of wheel frames, a horizontal frame, a vertical frame, and a tiltable frame. The horizontal frame is provided with as many longitudinal member sockets and fixing devices as there are lower longitudinal members to be welded, and first and second floor plate sockets and a floor plate fixing device. The vertical frame is provided with a pivotable jig on its upper portion. The tiltable frame is pivotable about the upper end of the vertical frame and is provided with as many longitudinal member socket and fixing devices as there are upper longitudinal members to be welded. When respective cylinders for the first and second floor plate sockets, the pivotable jigs, the floor plate fixing devices and the longitudinal member socket and fixing devices are actuated, a girder, the floor plates and the upper and lower longitudinal members are located in proper alignment and position, and they are then directly subjected to the process of regular welding.

Inventors

  • 👤 Takashi Kawai
  • 👤 Kiyoshi Mikizawa
  • 👤 Shigeo Tomita
  • 👤 Yoshio Tatsui
  • 👤 Akio Hikai

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 07:56
CPC Classifications
B; B63; B63B; B63B73/00; B63B3/00; B63B3/14; B63B3/26; B63B3/28; B63B3/32; B63B3/34; B63B3/36; B63B3/62; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53961; Y10T29/5397

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 118 words
Apparatus for assembling blocks of a ship hull comprising: a bed carrying parallel rails; and a horizontal frame movable along said rails, said horizontal frame carrying: a floor plate fixing device; first and second floor plate sockets; a plurality of sockets and fixing devices for lower longitudinal members; a vertical frame, and means fixedly mounting said vertical frame on one side margin of saId horizontal frame, said vertical frame carrying: a tiltable frame; means supporting said tiltable frame for vertical movement and tilting relative to the vertical frame; a jig, and means supporting said jig for pivotal movement relative to the vertical frame, said tiltable frame carrying: a plurality of sockets and fixing devices for upper longitudinal members.
Claim 2
Dependent Claim 118 words
Apparatus for assembling blocks of a ship hull comprising: a bed carrying parallel rails; and a horizontal frame movable along said rails, said horizontal frame carrying: a floor plate fixing device; first and second floor plate sockets; a plurality of sockets and fixing devices for lower longitudinal members; a vertical frame, and means fixedly mounting said vertical frame on one side margin of saId horizontal frame, said vertical frame carrying: a tiltable frame; means supporting said tiltable frame for vertical movement and tilting relative to the vertical frame; a jig, and means supporting said jig for pivotal movement relative to the vertical frame, said tiltable frame carrying: a plurality of sockets and fixing devices for upper longitudinal members.
Claim 3
Dependent Claim 75 words
Apparatus according to claim 1, wherein said first floor plate socket comprises a floor plate support jig mounted to be movable over said horizontal frame in accordance with the length of a floor plate, and a floor plate pressing jig connected to the ram of a jack cylinder, said floor plate support jig and said floor plate pressing jig respectively having a roller on the surface thereof which comes into contact with said floor plate.
Claim 4
Dependent Claim 69 words
Apparatus according to claim 2, wherein said second floor plate socket comprises a support jig mounted on said horizontal frame in the vicinity of said vertical frame, and a cylinder, said support jig having a roller mounted at that portion thereof which contacts a floor plate, and the forward end of the ram of said cylinder having a ball mounted in that portion thereof which contacts the floor plate.
Claim 5
Dependent Claim 48 words
Apparatus according to claim 1, wherein said floor plate fixing device comprises a sawtooth rack fixedly mounted within the body of said horizontal frame, and a floor plate pressing jig formed integrally with a jack and mounted to be movable to any desired position by a pivotable pawl.
Claim 6
Dependent Claim 83 words
Apparatus according to claim 1, wherein each of said longitudinal member socket and fixing devices provided on said horizontal frame and said tiltable frame comprises a longitudinal member socket, a push and pull jack cylinder having the forward end of it ram connected to said socket and a threaded boss which is mounted in a box, and said box is attached to said horizontal frame and said tiltable frame to be movable by rotation of a screw threaded shaft extending through said boss.
Claim 7
Dependent Claim 70 words
Apparatus according to claim 1, wherein said pivotable jig comprises at the forward end thereof a floor plate support jig, and a floor plate pressing jig equipped with a jack cylinder, said support jig having a roller mounted in that portion thereof which contacts a floor plate, and the forward end of the ram of said cylinder having a ball mounted in that portion thereof which contacts said floor plate.
Claim 8
Dependent Claim 21 words
Apparatus according to claim 1, wherein said vertical frame is provided with a plurality of bolts for providing a girder line.

References Cited (Backward Citations)

US3759207A Cited
US3656680A Cited
US3704822A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-03-24 1978-09-23 1979-03-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-03-24 1982-09-23 1983-03-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-03-24 1986-09-23 1987-03-25 $7700.00 Window Closed / Lapsed

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