Bell Industries, Inc.

Peter D Kaye

A programmable-sequencing valve assembly for controlling plural fluid-operated motors, which includes a series of valve housing modules, sealably joined to one another thereby forming an elongate valve housing which receives plural valve inserts. The valve housing modules collectively form manifolds which may be connected to a pressurized source of fluid and an exhaust line. The assembly is mechanically programmable and provides a visible, non-volatile program to control multiple motors. Individual valves are actuated by cam-operated rocker arms. A cam shaft includes removable adjustable cams, a program may be quickly changed by replacing or rearranging the shaft, its associated cams, or nodules on the cams.

Mechanically programmable-sequencing valve

Saw-advancing apparatus in a grinder for circular saws which includes a pad brought into engagement with the edge of the saw by extension of a fluid-operated ram. The pad and ram are swung as a unit to produce rotation of a saw engaged by the pad.

Saw-advancing means with edge engaging pad

Grinding apparatus which includes a clamp for holding an article to be ground. The clamp is swung, in orbital fashion, to move the clamp from a position located under a lower edge portion of a grinding wheel located on one side of the wheel's rotation axis, to a position located under a lower edge portion of the grinding wheel located on the opposite side of the wheel's rotation axis. In the sharpening of saw chain, the clamp is used in holding chain during the sharpening of cutter links of one hand when occupying one position, and is used in holding chain during the sharpening of cutter links of opposite hand when occupying its outer position.

Grinding machine with reorientable chain holding clamp

A grinder for sharpening saw chain cutting teeth includes a base, an arcuate guide arranged on the base, a power-driven rotary grinding wheel mounted on a pivotal motor arm movable with a mounting bracket along the arcuate guide and a releasable, self-centering clamp for holding a segment of a saw chain in position beneath the grinding wheel. The clamp includes laterally opposed elongate bars which support a saw chain and which are each simultaneously displaceable at equal rates toward a preselected datum line. The preselected datum line intersects a fixed, reference axis about which the mounting bracket is angularly displaced. Because the elongate bars are movable equally with respect to the preselected datum line, the lengthwise centerline of a saw chain will always be maintained substantially aligned on the preselected datum line regardless of the width of the chain. The arcuate guide is an elongate bar having an arcuate guide track which receives the motor arm mounting bracket. The arcuate guide is pivotal about a pivot axis so that the mounting bracket may be angularly displaced along the arcuate guide and offset at varying distances from the reference axis.

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Monroe, OR, United States of America

Peter D Kaye