Abstract: A laminated vinyl fabric and a process for making the same, said fabric comprising a sheet of vinyl resin with which a major proportion of plasticizer is combined, said fabric also having been made by extrusion and promptly thereafter having been adhesively laminated at a relatively low temperature with a knitted fabric at substantially only wrap pressure. In one form, the knitted fabric is of an interlock double-knit construction with one surface thereof having a relatively small number of contacts with said vinyl sheet via an intermediate adhesive.

Abstract: Postal franking apparatus in which both semi-permanent and variable information to be printed onto an envelope is stored electrically in a memory and is read out to form printing control signals for controlling a thermal printer containing thermally activable inking means at a printing station into which the envelope is placed. The thermal printer is in the form of an elongate conductive plate having a large plurality of electrical connections along its length to which are fed the printing control signals in synchronized relationship to passage of the envelope, the plate being of sufficiently high resistivity that only localized areas thereof are heated by the currents associated with the control signals, and ink is applied to the envelope only at the heated localities.

Abstract: A filtering screen is described comprising: a first filter mesh, a second filter mesh having a different mesh size from the first and overlying the first mesh, and an apertured support to which both of the meshes are bonded so as to maintain the two meshes in tension, the tension in one of the meshes being greater than that in the other. At least one other filter mesh may be bonded over the first two meshes. The support may comprise a plate of fiber reinforced material having apertures formed therein which are much greater in area than the openings in the filter mesh, or a sheet of metal in which apertures are formed and in which edge regions of each aperture are turned through approximately 90.degree. to extend normal to the plane of the sheet from the underside thereof to increase the rigidity of the sheet. The frame may alternatively be a honeycomb structure or an apertured metallic plate, the filter meshes being joined to the surface of the frame.

Abstract: This circuit includes a DC source in series with a load to be energized, the DC source also being coupled to a constant-current circuit coupled to the input of an output-signal-generating means. The latter produces an output signal in response to the detection by an associated sensor of a changing condition monitored by the sensor. When the signal-generating means detects a change, an SCR coupled to the DC source is turned on thereby by-passing all of the DC from said source around said constant current source. Simultaneously, the signal-generating means causes an associated LED to emit a light signal.

Abstract: A system for maintaining back-pressure in chemical laboratory testing apparatus includes a modified flow control valve governed by a special control system which includes an input/output controller. That controller includes a microprocessor and memory into which a program developed specifically for the modified valve has been placed. A pre-pressure valve is also used upstream of the instrument in which the pressure is to be maintained for effecting quicker control of the pressure. The input/output controller, in conjunction with the servo-amplifier, integrates out the error between the desired set-point pressure and actual pressure thereby enabling maintenance of pressure within one pound.

Abstract: An electromagnetically actuatable probe is inserted in a vessel containing a body of liquid and in which high pressure, high temperature, corrosive, or other hostile conditions exist. Pulses are transmitted to the probe within a predetermined range of frequencies which include the normal resonant frequency of the probe. Return signals are generated by the probe between the times the transmitted pulses are sent. These return pulses are processed to produce signals which are a function of the level of the liquid that are then employed to control the discharge of the liquid or used by another utilization circuit.

Abstract: A dual power-supply system is used to produce a sharp rise-time characteristic and a high steady-state temperature in a platinum ribbon pyrolysis probe. First, a small "boost" power supply generates a very short, high power pulse that is applied to the probe. Then, at its peak, the first power supply is effectively disabled and a second power supply is brought into play to maintain the power (and the temperature) in the probe at a high steady-state value approximating the peak value of the boost pulse.

Abstract: Partially wet organic fibrous material is centrifugally impacted in a hot exhaust gas atmosphere such as flue gas to defiberize and dry the material. Then the material is separated from the hot exhaust gas by fluid energy. In one form of the invention, the separated material is burned in a prime combustion zone thereby producing hot flue gas which is fed back to the centrifugal impacting zone.

Abstract: Compositions from 25% to 65% of a synthetic rubber block copolymer and from 75% to 35% plasticizer by weight are heated and mixed and applied, usually with a curing agent, to the lid or cover of a container such as a drum or pail. The application may take place while the lid or cover is revolved and the heated mixture is flowed on. The synthetic rubbers may be of the groups comprising SBS rubber, SIS rubber, S-EB-S rubber. The plasticizer may be from the group comprising paraffin, oils or waxes, polyethylene, polypropylene or ethyl vinyl alcohol.Apparatus is also shown and described for implementing the application of the compositions to the lid or cover as it is revolved. If a groove is formed in the cover before reception of the composition, the apparatus extrudes or flows it into the groove and then the flowed-in material is permitted to set.

Abstract: An insulating housing has a circuit board mounted on its interior with separate conductive tab end portions of the board protruding outwardly through apertures in the housing. The tab portions have printed thereon conductive parts which connect with selected printed points or components on the board within the housing. Each tab has a hole for a screw in its conductive part so that when a wire is wound around the screw and the screw is tightened, good low-ohmic contact with a designated part of the board is made and the tab is positionally fixed to the housing. Slots between the tabs permit each screw binding post to be electrically insulated from its adjacent post by the interposition of integrally molded perpendicular barriers in the slots.

Abstract: A reactor tube of a microreactor assembly including a first central temperature sensor and a channel formed in its outer surface to circulate a coolant. A tightly fitting conductive core surrounds the cooling channel and is sealed to the reactor tube at both ends to confine the coolant except for inlet and outlet holes. Around that core a metallic tube is fitted having a longitudinal slot to which a second temperature sensor is fixed. A heating element to heat the tube and the reactor tube is disposed on the slotted tube and second sensor so that temperature changes on the outer wall of the reactor tube-core sub-assembly can be detected. Both the first and second temperature sensors are adapted to feed output signals to a controlling data processing unit.

Abstract: A synthetic plastic rope includes a selected number of first components having a relatively high elongation characteristic and second components whose elongation characteristic is considerably lower. In one form of the invention, the rope has a central core in which the first components are located, and a plurality of surrounding strands principally constituted of second components. In other forms, the rope does not have a core and there are a plurality of strands braided (plaited) or laid (twisted) together primarily consisting of the low elongation components, but having high elongation components distributed substantially symmetrically and which in the aggregate have substantially less mass than the low elongation components.

Abstract: An assembly which involves a ratchet wheel adapted to be rotated by incremental steps to drive a shaft connected thereto. A rotatable pushbutton is mounted through a hole in the chassis and is connected to a rod to which a flexible pawl is mounted parallel to the rod. When the pushbutton is in one rotary position, inward pressure strokes on the pushbutton cause the pawl to engage teeth in one region of the ratchet wheel causing it to move in a clockwise direction. When the pushbutton is rotated 180.degree. to a second rotary position, each inward push on the pushbutton causes the pawl to engage respective teeth in another region of the wheel thereby moving the wheel incrementally one step in a counterclockwise direction.

Abstract: A camera zoom lens system comprising; means for generating and storing a first information signal representing a predetermined position of the first movable lens group, means for generating a second information signal whose value determines a relationship between the respective positions of said first and second movable lens groups, first computing means for deriving from the stored first information signal a third signal representing the position to which the second movable lens group must move so that both lens groups produce an in-focus image of the object at infinity, second computing means responsive to the first and second information signals for generating a correction signal which when combined with the third signal produces an output signal representing the position to which the second movable lens group must move so that both lens groups will produce an in-focus image of an object at a specified distance, third computing means responsive to the correction signal and the third signal for generating a

Abstract: A method and apparatus for preparing a proof or sample of an ink (as herein defined) as a preliminary to its being employed in a printing or coating process to enable its color and coating capability to be determined. A quantity of the ink is applied to a first roller the surface of which is engraved. The ink is evenly distributed over the roller using a doctor-blade set so as to wipe the roller surface clean and leave the ink only in the engravings. A second roller of resiliently deformable material is moved into contact with the inked roller so causing ink to be transferred to the surface of the second roller until equilibrium is reached and a sheet of the substrate to be inked or coated is introduced into the nip between the two rollers. Means is provided for cleaning the rollers after use.

Abstract: A tile cutter for separating into parts a ceramic tile or the like after scoring a break line, comprised of a pair of blocks hinged by stop hinges and having proximate edge faces cut away to provide clearance for folding the blocks about the hinge. Slots extend through the blocks and are normally coplanar to admit a tile so as to bridge the gap between the two blocks. A stop which may be adjustable towards and away from the hinge, governs the amount by which a tile can be introduced into the aligned slots. Alternatively the tile may be held in position through a cut-out. A scale allows the amount of insertion to be measured. A scribing tool is used to scribe a line in the tile surface to define the break line and the tile is cut (or broken) by sharply hinging one of the two blocks relative to the other as by a sharp impact, so as to stress the tile along the tile scribed line to cut/break the tile therealong.

Abstract: A composition which comprises principally powdered bloodroot powdered ginger root, and zinc chloride in relatively equal parts by weight, is applied in a number of treatments to skin lesions such as epithelioma tumors. After a short time, the growth comes out and a healing ointment comprising lard, lanolin, phenol and tannic acid powder is applied to the site until healing is effected.

Abstract: System for determining supplementary feed rations for dairy cows, which comprises the steps of:(a) recording in a hand-holdable microprocessor-based recorder (1) information relating to the cow identity of each of a plurality of cows which are to use a milking parlor,(b) entering information relating to the cow identity of each cow actually entering the parlor for a milking session, the recorder being programmed to validate the entered cow identities with the recorded cow identities,(c) entering respective milk yields in relation to respective validated cow identity entries,(d) after a milking session, connecting the recorder to a master unit (30), and(e) causing the master unit to read the information in the recorder as to milk yield Y for each identified cow and enter this information into a central processor programmed to compute a value of feed concentrate ration (R) for each cow according to an algorithm having the general form: R=V(Y-M+L(t)+C), where M, L(t) and C are values for "maintenance +", lactati

Abstract: In one embodiment, the incinerator has three or more aligned stationary, vertical adjacent structures, each of which has a heat-exchange section covered partially by respective plates which are so arranged as to provide between adjacent ones of the sections substantially uniform gas flow paths via a common combustion chamber disposed above all of the sections. In another embodiment, generally cylindrical vertical and aligned sections are provided, each having a heat-exchange bed supported on a perforated member. The level of the heat-exchange elements in each section is kept very low. The tops of the three sections communicate with one another via a generally horizontal, combustion passageway formed between them into which at least one burner is placed.

Abstract: A ball bearing puller comprising a head member with a central force applying bolt and a number of extractor bars rotatably and slidably mounted at first ends in slots radiating from the bolt. The extractor bars can be clamped at any position along the slots so as to be non-rotatable. Each extractor bar has a modified sphere at its other end with inner and outer race clearing flats which are parallel and positioned symmetrically one either side of the longitudinal axis of the extractor bar and a cage clearing flat at the extremity of said one end intersected by said longitudinal axis.