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AssigneesMatsushita Electric Industrial Co., Ltd., Japanese National Railways
InventorsKeiji Shimizu, Hiroshi Yoshida, Haruhisa Furuishi, Yoshihiro Murata, Hidenori Suzaki, Kuninori Azuma, Kinji Terawaki, Hiroshi Izumi
Estimating the term…
A pad comprising at least one sheet of material having a thermoplastic resinous composition and a heater actuable to heat and soften the sheet, the pad being for use in alignment of machine equipment, rails, beams, girders, or other constructional elements relative to a horizontal base, vertical or inclined line, or to other constructional elements. In use the pad is placed between the equipment, rail or the like and a support or abutment therefor, and the heater is actuated so as to soften the pad just sufficiently that the weight of object or a force thereon reduces the thickness of the pad an amount equal to the desired movement of the object necessary to achieve the desired alignment.
An electrically heated aligment pad which comprises at least one plate member of thermoplastic resin and at least one thin flat electric heater lying against said plate member for heating said plate member to soften said plate member, said plate member having a large plurality of apertures therein spread substantially uniformly over the whole area of said plate member and into which portions of said plate member around said apertures flow laterally when said plate member is in the heat softened condition and an external compression force is applied thereto for reducing the thickness of said plate, whereby an object through which the compression force is applied can be moved by the reduction of thickness of the alignment pad for adjusting the position thereof in the direction of the force being applied to the alignment pad.
An electrically heated alignment pad which comprises a plurality of plate members of thermoplastic resin, each of said plate members having a plurality of openings therein each of which openings extends completely through the thickness of said plate member, and a plurality of surface heaters, one between each two adjacent plate members, each of said heaters being a woven mat having a metallic heating element woven therethrough, said heaters, when energized, heating said plate members to soften the latter so that the thickness of said pad is reduced when an external compression force is applied thereto, whereby an object through which the compression force is applied can be moved by the reduction of thickness of the alignment pad for adjusting the position thereof in the direction of the force being applied to the alignment pad.
An electrically heated alignment pad which comprises;
Dependencies are inferred from the claim text.