Abstract: Disclosed are occlusal splints and the method of manufacturing the same. The occlusal splints described are worn on the upper arch of the mouth over the teeth. They are formed of two layers. The first layer is formed of a soft material molded to conform to the shape of the upper teeth and to be resiliently retained thereon, and the second layer is made of cold-cure acrylic resin built up on the first layer.

Abstract: A threading tool intended primarily for use as an electrical wiring pencil has a tubular body housing a manually operable brake member which can be moved into frictional engagement with the edges of a rotatable spool to restrain movement of connecting wire through the body. The brake member is housed in a recessed channel which is open to the outside of the body along its entire length via a relatively narrow slot. The slot and the channel are open at the spool end of the tool to allow easy assembly of the brake member into the tool. Insertion and removal of the spool is performed by prising apart jaws at the end of the body. When inserted, the spool holds the brake member in place.

Abstract: Disclosed is a safety latch cylinder for a tiltcab truck. The safety latch cylinder comprises a hydraulic cylinder extension of which unlatches a cab latch mechanism and a bypass to tank through the hydraulic cylinder. The hydraulic cylinder is in hydraulic series with the tilt cylinder(s), and, when the hydraulic cylinder is prevented from extending to unlatch the cab latch mechanism, hydraulic fluid is returned to tank through the hydraulic cylinder, preventing extension of the tilt cylinder(s).

Abstract: A digital gauge for measuring the sagittal depth and thickness of a lens comprises an encoder for deriving electrical signals corresponding to the saggital depth and thickness of the lens, a first digital circuit responsive to the electrical signals corresponding to the sagittal depth of the lens for producing a first digital output representing the sagittal depth, a second digital circuit responsive to the electrical signals corresponding to the thickness of the lens for producing a second digital output representing the thickness, and a display unit responsive to the first and second digital outputs for displaying the sagittal depth and thickness, respectively, of the lens. A first embodiment employs dual encoders and associated dual moveable plungers, while a second embodiment employs a single encoder and associated moveable plunger, together with a fixed stop in alignment with the plunger.

Abstract: A heat sink/retainer clip (54) capable of resiliently holding objects, such as printed circuit boards, in tubular members, such as telemetering tools. The heat sink/retainer clip comprises two portions (56, 60) which extend across the tube from opposite sides thereof and two portions (58, 62) which engage the inner periphery of a tube (48). The clip is made of a resilient material, and the outer radii of the second two portions is slightly greater than the inner radius of the tube, so that the clip is distorted by the tube, during assembly, to resiliently grip the object between the first two portions.

Abstract: Disclosed is a magnetic closure mechanism comprising two strips of flexible, non-magnetic material having magnets incorporated in them, mechanical detent means for holding strips adjacent each other such that faces having opposite polarity are adjacent each other, closing the mechanism, and means for moving the magnets relative to each other such that faces having the same polarity are brought adjacent each other, opening the mechanism.

Abstract: A method and apparatus for handling and dispersing a coolant and/or working fluid in ophthalmic lens processing equipment and the like. The apparatus includes a dispersing member (50) including a landing surface (52). An extension strip (62) projects away from the landing surface and includes a leading edge (64) having a compound arcuate contour. In operation a columnar flowing fluid (60) is directed onto the landing surface where it is spread into a sheet of flowing fluid (80). The sheet of fluid is guided away from the landing zone and onto working members operably intended to receive the fluid.

Abstract: An insulated point gap assembly for a toroidal coupled telemetry system wherein a drill collar (38), operable to be connected to a lower portion of a drill string (32), carries a toroidal core having primary windings (88) and secondary windings (130). An aperture (154) is laterally fashioned through the drill collar. A conductor (150) is connected to one end of the secondary and extends through the aperture and the other end of the secondary is connected to the drill collar. The conductor is surrounded by an electrical insulation member (152). In a preferred embodiment, an axially extending sleeve of insulating material (156) is applied about the drill collar at the location of the conductor (150) to further isolate the conductor 15 from the drill collar.

Abstract: Disclosed is a pump comprising a rotatable barrel, a tiltable pump cam, and a proportional servo actuator operatively connected to the pump cam to affect the angle between the pump cam and the axis of the barrel.

Abstract: Disclosed is an automatic edge beveller for removing the sharp peripheral edges of ophthalmic lenses. It comprises (a) first apparatus for positioning an ophthalmic lens perpendicular to a first axis which extends through the lens, (b) second apparatus for rotating the lens about the first axis, (c) third apparatus for translating the ophthalmic lens parallel to the first axis, (d) a grinding wheel, and (e) fourth apparatus for rotating the grinding wheel about a second axis which intersects the first axis at an acute angle.

Abstract: An oil filter apparatus including a disc element (16) operable to be releasably mounted between a conventional oil filter cannister (14) and a machine (10) to be lubricated. The disc element has generally mutually parallel and opposing end surfaces (50, 52) operable to be mounted between the machine and the oil filter and abut against and sealingly engage with compatible surfaces on both members. The disc element (16) includes a first disc passage (56) extending between the opposing surfaces of the disc and being in fluid communication between a first oil passage (3) carrying oil under pressure within the machine to be lubricated and the inlet side of an oil filter element. A second disc passage (58) extends between the opposite surfaces of the disc and is in fluid communication with an oil outlet port (40) of the filter element and a second oil passage (42) of the machine downstream of the first oil passage.

Abstract: Disclosed is a bale wagon comprising a bed upon which bales are stored and a tower mounted on the bed for receiving a bale or bales, lifting the bale(s) to a selected height, and moving the bale(s) longitudinally of the bed length, depositing same on the bed or on a partially formed load already on the bed and wherein said tower can retrieve said bales from said load and eject them from said bed.

Abstract: The non-linear conductance and capacitance characteristics of electrically non-homogenous materials over a given frequency range are used to identify and analyze such materials.

Abstract: A device for plotting points on a drawing surface comprises a number of separate parts which are assembled on the drawing surface to produce a drawing instrument which covers a required angular range. The parts include a pivot boss which may be taped to the surface with its cross-wire over a given reference center, a radius arm which is pivotally mountable on the boss, and a plurality of interlocking protractor segments having an angular scale. The radius arm has a detachable radial distance scale, a vernier angular scale, and also a small hole for plotting positioning arcs on the surface. The protractor segments are separately attachable to the surface and may be positioned with respect to the center by means of the said positioning arcs. In an alternative embodiment the radius arm comprises a radial distance scale member with a pivot member clamped to one end and a vernier angular scale clamped to the other end.

Abstract: Disclosed is apparatus for playing a competitive game comprising (a) a playing board having a first player's station at one end and a second player's station at the opposite end, (b) an upright standard centrally mounted on the playing board, (c) a weight which is connected to the upright standard at a point remote from the playing board, but which is permitted to rotate about the upright standard, (d) at least one target mounted on the playing board in position to be contacted by the weight, and (e) a mallet mounted at each of the player's stations by means permitting the mallet to be both pivoted and moved longitudinally. The mallets are used to strike the weight, thereby causing it to rotate about the upright standard and to contact the target.

Abstract: An insulated drill collar gap sub for a toroidal coupled telemetry system comprising a first annular sub member (100) operable to be connected at one end to a drill collar and a second annular sub member (104) operable to be connected at the other end to the drill collar. The first and second annular sub members have longitudinally extending interconnecting structural members (106, 118) operable to structurally interfere. The interconnecting structural members are dimensioned to form a continuous gap (116) between mutually opposing surfaces and a dielectric material (118) fills the gap to electrically isolate the first annular sub member (100) from the second annular sub member (108). A bearing member (124) is positioned between the first annular member and the second annular member but is insulated from at least one of said annular members to facilitate the formation of a drill collar of structural and electrical integrity.

Abstract: A system and method for reproducing a plurality of images on a printer in printed form in accordance with selectable, variable multiple formats. The method generally comprises the steps of selecting a given one of a plurality of selectable, variable formats, receiving and storing digital data corresponding to each of the plurality of images except for one of the plurality of images, multiplexing the digital data corresponding to each of the plurality of images except for one with the digital data corresponding to that one of the plurality of images, and providing the multiplexed digital data to a gray line printer so as to reproduce the plurality of images in printed form in accordance with the selected format.

Abstract: Disclosed are several devices for supplementing conventional fuels (liquid or gas) in internal combustion engines with gaseous fuel supplements. The first device contains means for introducing a stream of hydrogen and/or oxygen gas into the spark gap. The second device contains means for introducing a gaseous fuel supplement into the combustion chamber through the piston. The third and fourth devices both contain means for introducing a gaseous fuel supplement into the venturi.

Abstract: Disclosed is a flow sensing check valve comprising an outer shell; an inner sleeve mounted in the outer shell and having a first port at one end, a second port at the other end, and a third port axially located intermediate the other two near the first port; a poppet valve urged into valving engagement with the first port, the poppet valve being in sealing engagement with the interior of the inner sleeve between the second and third ports and having a pilot flow control passageway therethrough; and a velocity fuse mounted in the second port. When the velocity fuse senses a pre-selected difference in flow, it causes the poppet valve to seat.