Abstract: A batting practice mat comprising a sheet of dense resilient, thick material having substantially its entire surface perforated by holes slightly smaller than a ball whereby a ball may be inserted in a hole and frictionally retained therein; this sheet is suspended from a bracket and held at the top and at the bottom by a plurality of elastic cables. The bracket is adjustable to sustain the sheet at various levels.

Abstract: A combination heater, a processing oven and incinerator in which a single burner constitutes the source of heat for processing materials in an oven and also constitutes the means of incinerating the products of combustion to an innocuous residue, capable of being discharged into the air without environmental damage. The products of combustion do not pass through the oven.

Abstract: A leader pin, providing a slotted rod received in a tube, with a first fin on the rod positioned to prevent a strip in the slot from moving transversely; and a second fin on the rod to prevent the tube from disengaging from the rod.

Abstract: A sheathed razor blade in which a folded film sheath embraces the blade, with the fold in general registration with the cutting edge of the blade; the folded film sheath overlapping the sides of the blade; the overlap of the folded film sheath bonded together to form a relatively stiff, lateral two ply enlargement beyond the side of the blade for removing the sheath.

Abstract: A low pressure gas regulator for purging vessels in which valve means first connects a vessel to be purged with a vacuum pump, and then when the vessel is substantially evacuated, it connects the evacuated vessel with a source of purging gas.

Abstract: A clip for intimately engaging a solar-ray absorber in heat exchange relation with a conduit whereby a channelled absorber or fin receives the conduit in the channel; a generally C-shaped, resilient clip is applied to the back of the channel to embrace the absorber from behind and clinch it to wrap the channel closely around the conduit.

Abstract: A conveyor having a plurality of indentations sufficiently wide to receive a single article and a bar transverse to the movement of the conveyor, the bar being suspended from filaments above the conveyor a distance sufficient to pass a single layer of articles and to gently nudge superposed articles into a successive unoccupied indentation.

Abstract: An adjustable table wherein front and rear legs open to provide a rigid support for a pair of pivotably mounted upper legs, to which a table is pivotably attached; slotted arms adjust the position of the upper legs with respect to the front legs; and slotted arms adjust the position of the table with respect to the upper legs; a bar spaces the front legs apart and a smaller space the upper legs aparts; each bar encloses a rod with a threaded end for a thumb nut to cinch a slotted arm in a preselected position for holding the table.

Abstract: A leader-pin to securely hold the leader of a film strip or magnetic tape for high speed unwinding and rewinding wherein the end of the film strip or magnetic tape is inserted between a split rod and the split rod is then inserted into an elongated, resilient tube, with the end of the strip protruding from an elongated slit in the tube; the tube frictionally engaging the strip and the rod, so that the strip will not slip out of the leader-pin.

Abstract: A Fish Hook Setter wherein a releaseable, spring-loaded sleeve is normally urged into a tube and is lockable in extended position; when a fish nibbles at the bait, deflecting the fishing line, the sleeve is manually released and moves back into the tube; the sleeve is connected to a pivotably mounted fishing rod and socket which socket is jogged and jerks the fishing line to set a fish hook in the mouth of a fish.

Abstract: This relates to a high capacity, high speed random access filing system for graphic data. Graphic data on microfilm is placed in cartridges and the cartridges stored in a storage drum. The location of each cartridge is defined by a four digit address and each image frame is further defined by a four digit address. A source document is accessed by entering the combined eight digit address via a keyboard. The corresponding cartridge is automatically retrieved and the image frame corresponding to the requisitioned document is located and projected onto a display screen. A hard copy may then be produced if desired. The above system may be combined with an electronic memory search and data capture equipment for originating, maintaining, and updating stored graphical data.

Abstract: A combination confection and holder providing a confectionary slab with a concavity and a holder therefore; the holder has bifurcated resilient arms having opposed convexities which snap fit into the concavities in the confectionary slab, which the arms seize and hold.

Abstract: An in-ground swimming pool having a plurality of panels; the vertical edges of each adjacent panel seized between a front wall-joint and rear back-up joint having a rearwardly extending U-shaped channel to receive one side edge of a triangular brace; another U-shaped channel to receive the other side edge of the triangular brace; another U-shaped channel at the top of each panel to receive the edge of a deck member; a double channel having a regular position attached at the top of the panels to receive the outer edge of a horizontal deck; another double channel having a regular channel, receiving the bottom of each panel, and offset channels on each double channel receiving an outer edge of the deck; each offset channel having a brace attached at each end in the offset channels.

Abstract: A compact and portable colorimeter, including an integrally-formed probe having both a solid-state source of relatively monochromatic light and an optically coupled photodetector mounted therein. A power oscillator gating means is connected to the light source for pulsing same, to provide a chopped optical input. A demodulating circuit receives the output from the photodetector. The power oscillator gate signal is provided to a synchronous detector at the demodulating circuit, to synchronize detection with the chopping. The output from the demodulator is converted to a signal and read-out indicative of the concentration of that component of the sample which has absorbance characteristics correlated with the wavelength of the monochromatic source.

Abstract: A burner gun to provide a narrow spray pattern under high or low fire conditions, having a nozzle with an elongated tunnel passage therein which nozzle is spacially adjustable with respect to a spray tip; the spray tip has an oil swirl chamber with an axially movable piston to obstruct in varying degree oil intake ports in the swirl chamber, to reduce the flow when low fire operation is required.

Abstract: A collector box comprising a receptacle with at least one generally hollow sleeve attached to receptacle with a passage therethrough extending in a generally vertical direction and a support slidable in the passage; the bottom of the support having an enlargement, larger in diameter than the passage and the top of the support having an offset arm with a generally flat support pad.