Abstract: Method and apparatus for trimming plastic frames. Frames are joined to bring heated, soften ends into engagement, causing some softened material to be forced out from between the engaged portions, forming a flashing. This flashing is trimmed by a pair of trimming blades moved along associated guide members. The trimming assembly is mounted directly upon clamps holding the frame members, enabling performance of the trimming operation and eliminating the need for moving to a separate trimming/finishing station remote from the joining equipment. Excellent cutting action is assured by locking the guide blocks preparatory to a trimming operation. Various combinations and sequences of repetitive trimming operations may be selected whereby the cooperating blades are moved in selective cooperating directions to provide a trimming operation which avoids the need for further finishing. Trimming may also be performed simultaneously on multiple stacks of members being joined using the above technique.

Abstract: Method and apparatus for trimming plastic frames. Frames are joined to bring heated, soften ends into engagement, causing some softened material to be forced out from between the engaged portions, forming a flashing. This flashing is trimmed by a pair of trimming blades moved along associated guide members. The trimming assembly is mounted directly upon clamps holding the frame members, enabling performance of the trimming operation and eliminating the need for moving to a separate trimming/finishing station remote from the joining equipment. Excellent cutting action is assured by locking the guide blocks preparatory to a trimming operation. Various combinations and sequences of repetitive trimming operations may be selected whereby the cooperating blades are moved in selective cooperating directions to provide a trimming operation which avoids the need for further finishing. Trimming may also be performed simultaneously on multiple stacks of members being joined using the above technique.

Abstract: A support for a laser beam generator in a carpenter's level is positioned on the level so that the laser beam generated will lie in the plane of a flat reference surface of the level. A battery or other power supply is housed in the carpenter's level together with circuitry to connect the power supply to the laser beam generator and preferably a switch allowing the generator to be turned off and on. Gauges may be employed in the level for vertical, as well as horizontal, orientation to the reference surface and, if desired, a gauge enabling the reference surface to be repeatedly placed at a predetermined angle relative to the horizontal may be included. Such a gauge may be a commercial gauge such as an inclinometer. Preferably, however, a conventional gauge employing an arcuate tube filled with liquid having a bubble in it which seeks the highest level of the tube with calibration marks for accurately positioning the bubble.

Abstract: A bracket forms the base for a scaffolding post and includes a rectangular receiving box with an open top face for receiving and holding a vertically extending scaffolding post. The receiving box pivots about a horizontal axis established by a pin held in a base member of the bracket. This base member includes a flat nailing plate which can be used to secure the bracket to a pitched roof. The pin allows a free pivoting of the receiving box with respect to the angle of the pitched roof to which the nailing plate is attached.