Abstract: A mat cutting machine utilizes a trolley which runs smoothly and accurately along a shaft mounted upon the clamping bar assembly. Means is provided for precisely adjusting the relationship between the bevel cutting blade and the edge of the clamping bar, and the blades are held by magazines which permit ready interchangeability and facile adjustment of the amount of blade protrusion so as to enable the cutting depth to be altered with considerable ease. The base of the machine includes means for accurately positioning the workpiece, and for readily controlling the travel of the trolley, to afford high volume production capability.

Abstract: A stack of fasteners cooperatively define a lateral groove which cooperates with an elongate rib to orient the stack in a magazine of a driving machine.

Abstract: A mat cutting machine utilizes a trolley, which runs smoothly and stably along a shaft mounted upon the clamping bar assembly, the head assembly of the trolley including eccentric means for precisely adjusting the relationship between the cutting blade on the bevel side and the edge of the clamping bar.

Abstract: An angle guide device has a pair of arm members which are adjustable through a range of angles to engage adjacent edges at the corner of a piece of mat board. The device is adapted for mounting upon a triangular guide member in a mat cutting machine, and to be secured in each of a multiplicity of positions along the length of the guide member.

Abstract: A machine for driving glazier's and framer's points utilizes a push plate which is effective to drive the points at both of two levels. A ramp element is incorporated, which serves to deflect the points from an upper to a lower level as they are being driven forwardly into the workpiece, and edge features of the points employed impart a rotation or turning action thereto which deflects the tail portions downwardly to bear tightly upon the glass plate or other piece that is being mounted. Features of the points cooperate with elements of the magazine to ensure proper orientation, and the machine is effective and comfortable to use.

Abstract: A framer's tool consists of a handle member on which is provided an anvil portion for abutment with the outside surface of a picture frame. An actuating rod extends forwardly from the handle member, and is attached to an operating trigger pivotably mounted therewithin. A driving jaw adjustably mounted on the forward portion of the actuating rod, and has a magnetic component on its lower end for setting framer's points, brads and the like, positioning them with a rearward orientation to be squeezed by the tool into the inner surface of the frame component. The anvil portion on the handle member may have a pair of spaced resilient pads mounted upon it, which cooperate with a rib on the confronting surface of the jaw to bend, and thereby fracture, a prescored piece of glass squeezed therebetween.

Abstract: Force upon the cutting head of a glass cutter will displace it rearwardly into the handle, thereby opening a valve by shifting an interconnecting tubular stem, admitting air into the reservoir. The air passes through the stem, the lubricant flows along its exterior, and both pass through a wick disposed to apply the lubricating fluid to the cutting wheel.

Abstract: The glazier holds the toe of the driver on the glass, adjacent the edge of the sash, such that a handle trigger can be operated to drive the lowermost point from the magazine into the sash by the action of a coiled compression spring. The magazine has an insert associated with it so that points of various size can be accommodated in a single point driver. Since larger points require a greater spring force, means is also provided for conveniently adjusting the compression springs displacement. The guide block and push plate assembly for driving the points into the sash are slidably supported in the frame so as to precisely engage only the lowermost point in the stack.

Abstract: A unique triangular point for use by a glazier has a star shaped central opening such that a plurality of such points can be stacked in oriented relationship to one another, and can be retained by a cotter key having skewed legs such that the key is easily inserted in opposed notches of the aligned openings in the points, and such that the key can be twisted for removal when inserting the stack of points in a conventional point driver. A plastic retainer is also disclosed and is adapted to fit into the aligned openings of the stacked points.

Abstract: A glass scoring head has pressure rollers which engage the glass on either side of the scoring wheel to compensate for variations of flatness in the glass, and the scoring wheel is pendulously supported so that it can score in one and an opposite direction without moving the head on the associated bridge structure. The means for so supporting the scoring wheel also includes novel means for rotating the pendulum support itself to permit scoring in mutually perpendicular directions, both of which directions are also reversible as a result of the pendulous mount.

Abstract: A glass scoring head which compensates for variation in the flatness of the glass to provide a score of uniform depth as it traverses the glass has an outer body adapted to be mounted in four possible positions to a bridge or the like to score glass in four different directions. This support body defines an air cylinder with an elongated annular piston means movably mounted therein. A pair of pressure rollers are journalled on the lower end of the piston means to bear on the glass with a force proportional to the air pressure in this cylinder. An elongated support tube is slidably mounted inside the annular piston means, and a second air cylinder urges the tube downwardly to supplement a spring acting between the second air cylinder piston and the tube.

Abstract: An attachment for a glass cutter has a curved palm contacting portion and an integrally formed sleeve which is tapered to receive the flared finger receiving lower portion of the handle. A self spring is defined in the sleeve side wall to secure the attachment to the handle.

Abstract: A glass cutter of the type having a pillar post capable of limited angular movement about a vertical axis is disclosed. The pillar post is provided in a conventional head which is adapted to traverse a glass sheet in one and an opposite direction, and the glass cutter can score in both directions because the tool is designed to trail this vertical axis, and thereby provide a castering action in both directions. The tool is mounted in a small pendulum which is gravity biased to assume a ready position such that traversing movement of the head and pillar post in one direction, in conjunction with engagement between the tool and the edge of the glass sheet itself, moves or swings the pendulum to a first limit position such that the tool trails the said vertical axis achieving the above castering action.

Abstract: Glass tubes to be cut are placed side-by-side on an inclined bed which has an anvil at one end, and a movable measuring bar or stop spaced downstream of the anvil to define the tube length desired. The tubes are adapted to slide downwardly on the inclined bed to engage the stop, and can be clamped to the bed so that a glass scoring tool and break off shoe, provided in a movable carriage, can score and break the tubes over the anvil after the stop has been retracted. Superstructure above the bed includes a continuously driven shaft together with parallel guide rods for the carriage. Selectively casterable wheels in the carriage engage the continuously driven shaft to move it in one, and an opposite direction, and the carriage includes means for retracting the scoring tool and break off shoe for the return movement of the carriage. A magazine is provided below the group of cut tube segments, and has a floor which is indexed downwardly in response to completion of each cutting pass by the carriage.

Abstract: Two holders are disclosed, one with a downwardly removable retainer, the other with a forwardly removable retainer. The retainer in each case is U-shaped and has aligned openings to receive the long axle. The retainer is so mounted in the holder that an axle slot, oriented perpendicularly to the slot for the retainer, assists in supporting the retainer and cutter wheel axle. Pins extend across the axle slot to further support the axle, cutter and retainer in the holder.

Abstract: The head compensates for variations in flatness of a table upon which a glass sheet is placed for scoring, and also compensates for bending of the rails or support structure which carry the head as it traverses the table. A jump wheel is provided on a first arm pivotally mounted in the head, which head may comprise a trolley structure, and a scoring tool is mounted in a pivoted second arm having its pivot on the first arm. A spring acts between the first and second arms to bias the scoring tool to a limit position, defined by a suitable stop, such that the force of the scoring tool on the surface of the glass is independent of vertical displacement of the scoring tool as it traverses the sheet. The first arm is also spring biased to maintain contact between the jump wheel and the glass surface.

Abstract: Two plier elements are pivotally connected so that squeezing the handles together clamps the jaws against a glass sheet adjacent a score line. The actual clamping force is limited because the handles are made from a yieldable plastic such that the handles actually touch one another, preventing a predetermined clamping force from being exceeded. The jaws and handles are molded integrally in each plier element, and metal inserts are provided for the jaws.

Abstract: Two versions are disclosed, and each includes a pillar post mounted for castering action in a head which moves relative to the glass sheet. In both versions the pillar post has a bifurcated lower portion, with a rectangular insert provided between the furcations and a glass cutting wheel mounted in the insert. In one version the insert has an upstanding stem releasably retained in a central bore defined in the pillar post, and in the second version the insert has a laterally projecting pin which is releasably retained in a side slot provided in one of the pillar post furcations. In both versions the insert projects beyond the bifurcated pillar post to facilitate removal thereof, and both versions are designed to permit assembly of the insert in its associated pillar post in only one orientation.