Abstract: An automated open topped apparatus and improved method for cleaning soil from metal parts which employs a low vapor tension, low density, LVTC, liquid cleaner in a first tank and a high vapor tension, higher density, immiscible rinse, HVTR, liquid in a second tank and a rinse vapor zone above both tanks in the apparatus which provides steps and means for preventing rinse vapor loss during shut down periods by using microprocessor controlled steps that cause a layer of the liquid cleaner to be positioned atop and cover the liquid rinse in its tank and at the end of the idle period returns the liquid cleaner cover to the first tank and re-starts the cleaning process and thereafter monitors and controls cleaning operation until the succeeding shut down period.

Abstract: An automated open topped apparatus and improved method for cleaning soil from metal parts which employs a low vapor tension, low density, LVTC, liquid cleaner in a first tank and a high vapor tension, higher density, immiscible rinse, HVTR, liquid in a second tank and a rinse vapor zone above both tanks in the apparatus which provides steps and means for preventing rinse vapor loss during shut down periods by using microprocessor controlled steps that cause a layer of the liquid cleaner to be positioned atop and cover the liquid rinse in its tank and at the end of the idle period returns the liquid cleaner cover to the first tank and re-starts the cleaning process and thereafter monitors and controls cleaning operation until the succeeding shut down period.

Abstract: A dual-knife device for scribing or scoring a wood workpiece before sawing it with a motorized circular handsaw or other saw. The scoring insures a clean saw cut without splintering the wood at the edges, as is required in trimming veneer doors and wall panels. A guide bar is clamped to the workpiece to guide the saw and the scoring device. Prior to sawing, the scoring device is drawn by hand across the workpiece, guided by the same guide bar. The scoring device comprises a pair of knife blades mounted close together on a frame. The knife blades cut two parallel scribe lines or scores into the wood surface, one on each side of the kerf to be sawed. When the saw cut is made, the score lines prevent the saw blade from splintering or feathering the surface of the workpiece along the kerf line, insuring a clean cut.

Abstract: A guide for a motorized handsaw which guide includes a track member and clamps which fixedly engage the track and clamp to the underside adjacent edges of the workpiece to be cut by the saw. The clamps include sawable workpiece edge engaging members which extend into the area of the expected saw cut so that they indicate the guided saw line therebetween.

Abstract: A wood cutting or scarfing and wood sawing apparatus includes a power saw having a pair of mutually spaced scarfing blades positioned in advance of the saw blade and aligned with side edges thereof. The scarfing blades, spring urged into engagement with a wood article being cut, sever surface fibers of the article in the cutting path of the following saw blade. Because the surface fibers are previously cut by the scarfing blades, the saw blade, which may thus be of a conventional crosscut type, does not tear the surface and a clean, smooth edged cut is provided. The apparatus is particularly adapted to laminated wood articles, such as conventional hollow core doors and plywood panels and sheets, which are otherwise difficult and relatively time consuming to cut without splintering. To enable cutting of doors and large panels or sheets, a large article support structure and a saw guideway are provided.