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A homogeneous sash or fenestration unit is shown which may be made of a wide variety of materials, and holds a first and a second pane of glazing material in a parallel, spaced apart, relationship without the use of spacers or a preassembled glazing unit. A novel method and apparatus for making the

A homogeneous sash or fenestration unit is shown which may be made of a wide variety of materials, and holds a first and a second pane of glazing material in a parallel, spaced apart, relationship without the use of spacers or a preassembled glazing unit. A novel method and apparatus for making the sash or fenestration unit may use a double door horizontal booking press with fixed or adjustable molds.

대표청구항 ▼

A homogeneous sash or fenestration unit is shown which may be made of a wide variety of materials, and holds a first and a second pane of glazing material in a parallel, spaced apart, relationship without the use of spacers or a preassembled glazing unit. A novel method and apparatus for making the

A homogeneous sash or fenestration unit is shown which may be made of a wide variety of materials, and holds a first and a second pane of glazing material in a parallel, spaced apart, relationship without the use of spacers or a preassembled glazing unit. A novel method and apparatus for making the sash or fenestration unit may use a double door horizontal booking press with fixed or adjustable molds. ent. 2. The key according to claim 1 wherein the stop arrangement comprises mutually engageable stops on the mounting element and the shaft, respectively. 3. The key according to claim 2 wherein one of the stops is defined by a surface of the mounting element which faces away from the rotary axis, and another of the stops is defined by a shoulder protruding transversely from the shaft. 4. The key according to claim 1 wherein the expansion element includes a cylindrical collar defining the rotary axis and upon which the mounting element is rotatably mounted. 5. The key according to claim 4 wherein the mounting section comprises a cylindrical sleeve projecting transversely from the mounting element in a direction parallel to the rotary axis. 6. The key according to claim 5 wherein the cylindrical sleeve includes a slit extending therethrough parallel to the rotary axis, wherein the cylindrical member is circumferentially elastically compressible. 7. The key according to claim 4 wherein the expansion number further includes an inner portion of out-of-round cross-section mounted in the shaft. 8. The key according to claim 7 wherein a center axis of the outer portion is parallel to and spaced from the rotary axis. 9. The key according to claim 1 wherein the mounting element comprises a plate lying in a plane oriented parallel to a plane of the shaft. 10. The key according to claim 1 further including a positioning member releasably retaining the shaft and the mounting element in a predetermined rotational relationship by frictional forces. 11. The key according to claim 10 wherein the positioning member comprises a spring-biased ball carried by the shaft and engageable in a countersink of the mounting element when the shaft and the mounting element are in the predetermined relationship. 12. The key according to claim 1 wherein the mounting section comprises a cylindrical sleeve projecting transversely from the mounting element in a direction parallel to the rotary axis. 13. The key according to claim 1 wherein expansion member further includes an inner portion of out-of-round cross-section mounted in the shaft. 14. The key according to claim 13 wherein a center axis of the outer portion is parallel to and spaced from the rotary axis. 15. A method of widening an insert seat of an insert holder, the holder including a slot extending from an inner end of the seat, the method utilizing a key comprising a shaft having a manual gripping portion, and an expansion mechanism mounted on the shaft at a location spaced from the gripping portion, the expansion member comprising a mounting element carried by the shaft, with the shaft being rotatable relative to the mounting element about a rotary axis extending transversely of a longitudinal axis of the shaft, the mounting element including a fixing section situated farther from the manual gripping portion than is the rotary axis, an expansion element connected to the shaft for rotation therewith relative to the mounting element, the expansion element extending through the mounting element parallel to the rotary axis and including a projecting portion projecting traversely from the mounting element and having an out-of-round cross sectional shape, the method comprising the steps of: A. mating the mounting section of the key with a corresponding mounting section of the holder and simultaneously causing the projecting portion of the expansion element to enter the slot of the holder; B. rotating the shaft about the rotary axis relative to the mounting element and the holder, wherein the projecting portion of the expansion element rotates together with the shaft and widens the slot and the seat; and C. performing step B until the shaft abuts a stop, to terminate the rotation of the shaft.