Abstract: A sequence numbering code marking device includes a rotary drum housing, a stroke actuated sequential numbering printing head operated by a pivotally mounted trip lever which is eccentrically mounted on a center post to trip the counter with each revolution of the drum. Means are provided to positively cause rotation of the drum by each passing article and an improved null return mechanism is provided to cause the drum to stop its rotation at a preselected position after each rotation.

Abstract: A foldable bench for converting a normally hand-held electrically powered circular saw into a table saw, wherein the bench is easily portable when folded and highly stable when in use. In particular, the bench employs four foldable leg members having floor engaging extremities movable from a first position wherein the leg members are contained entirely within the bench housing to a second position wherein the floor engaging extremities are positioned laterally beyond the lateral extremities of the upper surface of the bench to thereby provide a compact, portable unit when the leg members are folded and an extremely stable bench when the leg members are extended. Simplicity in design is achieved by extrusion forming the upper surface from a single unitary member having means for slidingly mounting the portable hand-held circular saw and containing side grooves for receiving auxiliary attachment fasteners.

Abstract: A universal television tuner knob is comprised of four simple readily assembled parts only one of which must be made of different sizes; the parts comprising a tuning shaft engageable sleeve, a channel indicator disc adapted to be mounted on said sleeve, finger manipulatable means formed integrally with the sleeve and means carried on said sleeve to engage the channel indicating disc in any one of thirteen angular positions whereby the disc may be positioned relative to the tuner shaft so that the indicator disc will properly indicate the channel on which the tuner is fixed.

Abstract: A heat exchanger particularly for use in a circulating hot air fireplace is constructed to induce vorticity in the flame and/or hot combustion gases at a position in proximity to a heat exchange surface to enhance residence time and thermal transfer to the circulating air.The vorticity pattern acts as a self-adjusting flow controller.

Abstract: A versatile and ornamental planter design and construction, and a method of manufacture thereof, the planter design being susceptible of specifically different configurations and sizes for maximal usage possibilities from the standpoint of aesthetics and decor in different environments, and which is preferably constructed of a material such as Plexiglas or a thermoplastic, which can be clear, translucent, or colored to fit in varied decor and/or design motifs of a room or place of use. The planter can serve as an article of furniture, rendering a most attractive appearance by virtue of the design and construction and being extremely versatile, susceptible of usage with various types and sizes of plants which may vary in environmental and growing conditions and requirements, especially as to moisture and sunlight, and the construction being such as to provide enhanced structural strength and optimum utilization of the materials of construction.

Abstract: A heat exchanger particularly for use in a circulating hot air fireplace is constructed to induce vorticity in the flame and/or hot combustion gases at a position in proximity to a heat exchange surface to enhance residence time and thermal transfer to the circulating air.The vorticity pattern acts as a self-adjusting flow controller.

Abstract: A hinged retaining bar which engages the otherwise free edges of circuit cards when in position in a card file has an engagement face provided with slots filled with a resilient material. The resilient material provides elastic engagement with the edge of each card whereas the slot edges provide rigid restraint against lateral motion to prevent vibrational damage to the card and abrasive wear of the resilient material. A unique gripping action is attained through a particular slot geometry.

Abstract: The phototypesetting machine of this invention includes a character carrier bearing a group of characters arranged for projection by a projection unit. The character carrier is driven at a constant speed so that the characters move consecutively past the projection unit. Position marks and width marks are placed on the character carrier to control the projection of the characters and to provide the width information necessary to set the characters. The character carrier as segmented into replaceable sections, each section bearing at least one distinct alphabet or character group with the width information therefor.