Installations for the manufacture of beams composed of glued laminae

{
  "publication_number": "US4089732A",
  "country": "US",
  "kind": "A",
  "title": "Installations for the manufacture of beams composed of glued laminae",
  "abstract": "A press for use in an installation for the manufacture of beams made of glued laminae includes an outer, vertically movable frame having a U-shaped configuration in cross section, an inner stationary frame disposed in the space between the sides of the outer frame, and a fluid operated spacer arranged between the inner and outer frame and expansible to force the bottom of the outer frame against the upper edges of the glued laminae to align the upper edges flush with one another.",
  "claims": [
    "1. A press for use in an installation for the manufacture of beams made of glued laminae comprising vertical upright means having first and second sides; vertical pressure plate means disposed on said first side of said upright means; jack means abutting said second side of said upright means and having linking means removably attached to said pressure plate means, said jack means being operable to pull said pressure plate means toward said upright means for pressing glued laminae therebetween; an outer vertically movable frame having a U-shaped configuration in cross section defining spaced vertical sides joined by a bottom adapted to rest on the upper edges of the glued laminae; an inner stationary frame disposed in the space between said sides of said outer frame; and fluid operated spacer means arranged between said inner and outer frames and expansible when fluid is supplied thereto to force said bottom of said outer frame against the upper edges of the glued laminae to align the upper edges flush with one another.",
    "2. A press as recited in claim 1 wherein said inner frame has a bottom edge and said fluid operated spacer means includes an inflatable tube disposed between said bottom of said outer frame and said bottom edge of said inner frame.",
    "3. A press as recited in claim 1 and further comprising vertically extending serrated rod means, and saddle means carried by said inner frame for engaging said rod means to lock said inner frame in a stationary position during operation of said press and to permit adjustment of the position of said inner frame.",
    "4. A press as recited in claim 3 wherein said outer frame carries a pair of stirrup members with screws threadedly engaged therein and said inner frame has an upper edge adapted to abut said screws, said screws being adjustable to limit the relative structure of said inner and outer frames and to prevent rocking of said inner and outer frames relative to each other.",
    "5. A press as recited in claim 4 and further comprising pivoting plates disposed on opposite sides of said upright means and articulated about vertical axes to serve as a vertical support for the glued laminae.",
    "6. A press as recited in claim 5 wherein said jack means includes a moving member slidable along said upright means, a cylinder mounted on said moving member, a rod extending from said cylinder and a rocking lever carried at the end of said rod and coupled with said linking means, said moving member being substantially parallelepipedic in configuration with said upright means passing through the center thereof and said moving member having a front face serving as a stop for said pivoting plates.",
    "7. A press as recited in claim 6 wherein each of said pivoting plates is formed by an angle iron having one arm disposed opposite said front face of said moving member and another arm disposed opposite a side of said moving member.",
    "8. A press as recited in claim 7 wherein said jack means includes pulleys mounted on said moving member to receive said linking means coupled with said locking lever."
  ],
  "description_excerpt": "The present invention relates to improvements in or relating to installations for the manufacture of beams composed of glued laminae. To manufacture beams of this type, installations are already known which comprise a plurality of individual presses disposed along the curve of the beam to be made and enabling previously glued laminae of wood to be pressed against one another until they have stuck. These laminae of wood are generally disposed vertically (edgewise) and it is an object of the present invention to provide a device enabling said laminae to be pressed vertically so that the edges thereof are flush with one other and to ensure a regular pressure when the beams are shaped. To this end, the invention relates to a device for vertically pressing previously glued laminae placed in an installation comprising a plurality of individual presses disposed along the line of a beam to be made, wherein it comprises, associated with each press, two vertical pressing frames, one of which is connected to the press and the other rests on the stack of laminae, adjustable spacer means being provided between said frames whilst one of said frames serves as guide for the other.\n\nAccording to another feature of the invention, the installation for making beams composed of glued laminae comprises on either side of the upright of each press, pivoting plates articulated about a vertical axis and serving as (vertical) support for said laminae. The invention will be more readily understood on reading the following description with reference to the accompanying drawings, in which: FIG.",
  "cpc": [
    "B27D 3/00",
    "B25B 5/061"
  ],
  "ipc": [
    "B25B 5/06",
    "B27D 3/00",
    "B27M 3/00",
    "B30B 9/00"
  ],
  "assignees": [
    "GHESQUIER ANDRE JEAN GERARD"
  ],
  "inventors": [
    "GHESQUIER ANDRE JEAN GERARD"
  ],
  "filing_date": "1976-05-24",
  "publication_date": "1978-05-16",
  "grant_date": "1978-05-16",
  "priority_date": "1975-05-27",
  "application_number": "US-68938076-A",
  "family_id": "26218888",
  "citations": [
    "US1223568A",
    "US1441464A",
    "US229198A",
    "US2331972A",
    "US2355093A",
    "US2526987A",
    "US2551383A",
    "US2618302A",
    "US2647337A",
    "US3052921A",
    "US3444029A",
    "US3771438A"
  ]
}