§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US3918366A Expired / Lapsed US ⏱️ 0.0 years remaining

Ship section transfer assembly

Assignee: GREE HYDRAULICS OF CALIFORNIA Inc
•
Filing: 1974-07-15
•
Granted: 1975-11-11
•
Expires: 1994-07-15
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The present invention is directed to a transfer assembly particularly adapted for use in shipyards for moving ship hull sub-assemblies in a non-linear path from one point to another. The assembly is characterized by a gridway comprised of first and second pluralities of sets of parallel, intersecting tracks, the tracks being disposed at right angles to each other. A transfer carriage is provided which is comprised of one or more beams secured to a series of trucks mounted on the tracks, the beams of adjacent carriages being provided with cradles for supporting a hull sub-assembly of a ship. The carriages may be moved in a linear direction by translatory movement of the trucks along parallel tracks either by towing or by synchronized powering devices carried by the trucks. The carriage may be shifted in direction by stopping the assembly with the trucks in registry with track intersections. Hydraulic piston and cylinder assemblies are interposed between the beams and trucks whereby, an appropriate activation, the beams may be lowered such that their weight is supported by stanchions depending from the beams, the trucks being cleared from the tracks by the hydraulic assemblies whereby they may be rotated about the axis of the piston and cylinder, permitting the wheels of the trucks to be aligned with the other set of tracks. When the hydraulic assembly is again activated, the wheels of the realigned trucks are shifted downwardly into engagement with and support the carriage on a second set of tracks of the gridway, permitting movement of the unit along said second set of tracks.

Inventors

  • 👤 Russell V Noah

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 10:29
CPC Classifications
B; B61; B61K; B61K5/00; B61K5/02; B63; B63C; B63C3/00; B63C3/12; B62; B62B; B62B2203/00; B62B2203/07; B62B2203/071

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 249 words
Apparatus for the transfer of ship sub-assemblies or the like relative to a ship hull structure, comprising a gridway mounted on a horizontal support surface, said gridway including first and second pluralities of parallel, horizontally spaced apart, intersecting tracks, a carriage means including a beam member for supporting a hull sub-assembly, said beam member being vertically displaced from said gridway, a plUrality of horizontally spacedapart fixed stanchions depending from said beam member, said stanchions terminating in coplanar support portions, a plurality of vertically directed hydraulic piston and cylinder assemblies having free ends and ends fixed to said beam member, said assemblies being vertically shiftable between extended and retracted positions, the piston and cylinder components of said assemblies being relatively rotatable, said assemblies being spaced in accordance with the spacing between parallel tracks, a truck member fixed to the free end of each said hydraulic assembly, wheel means on said truck members for movably mounted said truck members on said tracks, said beam member being supported by said stanchions engaging said surface in said retracted limiting position of said hydraulic assembly, and by the engagement of said wheel means and tracks in the said extended limiting position, said wheel means being vertically spaced from said tracks in said retracted limiting position whereby said trucks may be rotated relative to said beam member selectively to align said wheel means with said first or said second plurality of tracks, to enable said carriage to move in a non-linear path on said gridway.
Claim 2
Dependent Claim 249 words
Apparatus for the transfer of ship sub-assemblies or the like relative to a ship hull structure, comprising a gridway mounted on a horizontal support surface, said gridway including first and second pluralities of parallel, horizontally spaced apart, intersecting tracks, a carriage means including a beam member for supporting a hull sub-assembly, said beam member being vertically displaced from said gridway, a plUrality of horizontally spacedapart fixed stanchions depending from said beam member, said stanchions terminating in coplanar support portions, a plurality of vertically directed hydraulic piston and cylinder assemblies having free ends and ends fixed to said beam member, said assemblies being vertically shiftable between extended and retracted positions, the piston and cylinder components of said assemblies being relatively rotatable, said assemblies being spaced in accordance with the spacing between parallel tracks, a truck member fixed to the free end of each said hydraulic assembly, wheel means on said truck members for movably mounted said truck members on said tracks, said beam member being supported by said stanchions engaging said surface in said retracted limiting position of said hydraulic assembly, and by the engagement of said wheel means and tracks in the said extended limiting position, said wheel means being vertically spaced from said tracks in said retracted limiting position whereby said trucks may be rotated relative to said beam member selectively to align said wheel means with said first or said second plurality of tracks, to enable said carriage to move in a non-linear path on said gridway.
Claim 3
Dependent Claim 20 words
Apparatus in accordance with claim 1 wherein said ship sub-assembly is mounted on a plurality of parallel, spaced-apart carriage means.
Claim 4
Dependent Claim 75 words
Apparatus in accordance with claim 1 and including powerized means for rotating said truck members relative to said beam, said powerized means including a first component mounted on said beam member, and a second component mounted on said truck member, said first and second components being positioned to be engaged responsive to movement of said hydraulic assemblies to said retracted limiting position and disengaged responsive to movement of said assemblies to said extended limiting position.
Claim 5
Dependent Claim 64 words
Apparatus in accordance with claim 3 wherein said means for rotating said truck member relative to said beam member comprises a ring gear on one side member, a pinion gear on the other said member, motor means for rotating said pinion gear, said ring gear and pinion gear being engaged in said retracted limiting positions and in clearing relation in said extended limiting position.

References Cited (Backward Citations)

US3392681A Cited
US3450062A Cited
US3312544A Cited
US3593859A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-11-10 1979-05-12 1979-11-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-11-10 1983-05-12 1983-11-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-11-10 1987-05-12 1987-11-11 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag