Abstract: A sewing machine cabinet for mounting a sewing machine and for housing and storing the machine when not being worked, which provides a drop platform interiorly of the cabinet below the top working surface thereof for lowering the machine into the interior of the cabinet maintaining the sewing machine in an upright position not tilting. The cabinet is well adapted to open-arm sewing machines. A hinged top cover when opened lifts the sewing machine up out of the interior of the cabinet by leverage action on a pivoting link attached to a guided sliding support arm which is attached to drop platform which supports the sewing machine and is guided by a rack. The rack is provided by one or a pair of guide columns. The hinged top cover when opened 180.degree. acts as a brake and lock for the moving drop shelf.

Abstract: An arrow rest support comprises an arrow support member having an elongate and hollow structure open from end-to-end along an upper portion of its length to provide a cradle-shaped arrow rest, which rigidly supports the arrow vertically against the force of gravity and semi-rigidly horizontally. Such member has sufficient open space to allow the fletching of the arrow to pass without impediment. The arrow rest support also comprises an attachment arrangement for adjusting the space between the bow handle and the arrow rest. The arrow support member is preferably molded from a medium density plastic material, such as a medium density polyethylene in a general box beam configuration having a rectangular cross section, but open along an upper elongate corner as a gap between arrow rest surfaces.

Abstract: An archery bow sight mounting device having a mechanism means for adjusting the vertical launch trajectory of an arrow through an angle of ten degrees or more in closely spaced steps of 20 minutes of arc, or less, having structure to inhibit an accidental misadjustment, and having indica for calibrating range with respect to each adjustment. Structure is also provided for adjusting the transverse launch trajectory angle to compensate for variations between bows or archers.

Abstract: The bowstring drawback and release device of the invention has a handle member that is advantageously of comfortably contoured T-formation in which the stem of the T extends forwardly and is connected by ball and socket joinder to a support for a bowstring catch. The support is in the form of a housing that is desirably open at its forward end and along its bottom, the catch being a lever within and pivoted to the housing intermediate its ends so as to drop open upon release effected by pulling a resiliently biased trigger that is pivoted within the housing and extends outside for convenient pulling, as by the thumb of the hand of an archer holding the handle.

Abstract: A sewing machine cabinet has a power lift operable by a rack and pinion type of mechanism whose pinion is driven by a reversible electric motor which preferably has incorporated therein braking means and speed reduction gearing. The rack is provided by one of a pair of guide columns, which is preferably indented along its length in sprocket formation. The pinion is preferably a sprocket wheel meshing with the sprocket indentations.

Abstract: A convertible table structure, providing a planar table top adapted, among other things, to support an open-arm or portable type of sewing machine, includes an apertured platform providing the table top and having a platform section fitting the aperture and adapted to mount the sewing machine so it can be lowered to a position wherein its working surface is coplanar with the work top of the platform proper. Link means, such as parallel motion mechanism, attaches the platform section to the platform proper, and means, such as a specially shaped lever rod, is provided for moving the platform section between its coplanar position and a lowered position, as well as for locking the platform section in its coplanar position. Other means are provided for holding such platform section in a selected lowered position. Legs or other suitable structure, such as a cabinet, supports the platform at a convenient working level.

Abstract: A folding leg mechanism for a table is adapted to be releasably locked in a firm, stable position as the leg portion thereof is swung down to extended position from retracted position against the underside of the table top. A longitudinal slot extends through at least one side of the leg and has its longitudinal axis in substantial alignment along the leg with the pivot axis about which the leg swings. A pin extends outwardly through the slot and is adapted for movement along the longitudinal axis of the slot. Spring means are provided for biasing the pin toward that end of the leg which is attached to the table. A trackway is positioned at the side of the leg from which the pin extends, so that the pin rides on and along the trackway as the leg swings between its retracted and extended positions. Abutment means are provided with which the leg makes contact when it is moved to its extended position.

Abstract: A work cabinet, for mounting a sewing machine in different work positions and for housing the machine when not being worked, provides a drop shelf interiorly of the cabinet below the top working surface thereof for lowering the machine into the interior of the cabinet. The drop shelf carries a mount for the machine, by means of linkage which permits raising and lowering of the machine to different work positions. Pivotally fulcrumed on the drop shelf is a lever having a work arm and a power-input arm, the former underlying the machine mount so as to raise and lower the sewing machine when power, usually manual, is applied to the latter. The cabinet is well adapted to open-arm types of sewing machines, and is provided with a removable insert for its apertured top wall as an extender for the limited work surface of such top wall in the work positions of the machine.