baber/WOPTO huggingface dataset:
Patent CA-1141123-A (CA)
Inventor: MOODY DALE R
IPC: B29C43/24
Filed: 1980-05-06
Granted: 1983-02-15
Abstract: ABSTRACT OF THE DISCLOSURE         A method and apparatus for making elastomer sheet  utilizing an extruder in combination with a calendering apparatus.  Elastomer material is extruded in tubular form from the extruder and longitudinally slit as it is discharged therefrom.  The slit tubular elastomer is opened to a planar form.  Calendering mechanism is provided having a pair of spaced rollers which provide a constant force for holding one of the rollers in position relative to the other.  Nip adjustment is provided between a bearing element of the calendering mechanism to limit the nip between the rollers and to load the bearing element by the constant force.  The planar elastomer material is introduced to the nip between the pair of rollers.  The planar elastomer material is calendered with the pair of rollers thereby reducing the material to a desired thickness.
Patent CA-1132683-A (CA)
Inventor: BUILTA KENNETH E
IPC: B64C13/16
Filed: 1980-05-13
Granted: 1982-09-28
Abstract: ELECTRICALLY CONTROLLED ELEVATOR            ABSTRACT OF THE DISCLOSURE    A helicopter elevator is driven by an electrical actuator to position the elevator to an optimum angle of incidence for given flight conditions.  The actuator is included within a servo loop which responds to a command signal derived from an electronics module.  Transducers which measure longitudinal cyclic position, collective pitch position and air speed generate signals which are summed in a summation unit.  The output of the summation unit is passed through a signal multiplier which has the gain thereof set inversely proportional to air speed.  A trigger unit activates the signal multiplier at an air speed above a preset threshold.  An integrator integrates the sum of the outputs of the longitudinal cyclic position transducer and air speed transducer to compensate for different center of gravity aircraft loadings.  Duplicate electronic systems are provided to drive a pair of servo motors with brakes provided to lock the actuator when an electronic failure is detected.
Patent CA-1152805-A (CA)
Inventor: WILLIAMS CHARLES E
IPC: A47J37/04
Filed: 1980-07-18
Granted: 1983-08-30
Abstract: Abstract A steam cooker processes large quantities of food products such as meat, fish, poultry and produce passed therethrough in a spiral conveyor path.  The continuously running conveyor is provided with loading and unloading stations outside the cooker and with a continuously operable spray detergent cleaning bath.  Efficient cooking is achieved without loss of humidity, flavor or appearance by maintaining water drop free steam at near 100°C and 100% humidity at a pressure greater than atmospheric and by features of the apparatus including control of steam flow out of the cooking chamber and introduction of cold air thereinto.  Two separate steam sources, internal and external, are provided with the internal source comprising a heated pool of water on the floor of the cooker chamber, which is agitated for heat transfer efficiency and to remove fat or drippings from the cooking products.  Sanitation means include mounting of machinery parts outside the cooker, access to all sides of the cooking chamber for cleaning, an internal cleaning spray system and other apparatus features.
Patent CA-1146098-A (CA)
Inventor: SIEGWART EMIL
IPC: B29C63/34
Filed: 1980-08-07
Granted: 1983-05-10
Abstract: ABSTRACT OF THE DISCLOSURE          A corrugated pipe with a smooth inner lining and method of production is disclosed.  The invention overcomes a problem of joining corrugated pipes together, or joining a corrugated pipe to a straight pipe where the more normal procedure is to wrap the joint with tape.  In the pipe, the inner lining consists of an un-corrugated foil and has an outside diameter corresponding substan-tially to the inside diameter of the corrugated pipe.  The lining is secured therein by an adhesive to the inside of the pipe, and the space between the foil lining and at least one corrugation trough is completely filled with a sealing compound.  In the pro-cess, at least one corrugation of the pipe is completely filled with a sealing compound, and a sleeve made of thin foil having an outside diameter approximately equal to the inside diameter of the corrugated pipe is inserted into the pipe and pressed against the inner wall so that it lies tightly against the sealing compound in the corrugation.
Patent CA-1147000-A (CA)
Inventor: MITSUGI ITARU
IPC: H01H13/06
Filed: 1980-08-08
Granted: 1983-05-24
Abstract: Abstract of the Disclosure A push-switch comprising a moving contact of partial-hemisphere-face-shaped resilient metal diaphragm which is disposed with its periphery on a pair of peripheral fixed contacts in a contacting manner and at its central part spaced above a central fixed contact.  The metal diaphragm moving contact has an opening having at least a protrusion with respect to the opening; so that the opening allows air to pass at inversing and restoring motions of the central principal part of the moving contact, thereby preventing dust from being drawn onto the central fixed contact.  The protrusion slides on and cleans the surface of the central fixed contact at each motion of the central part of the moving contact.
Patent CA-1123707-A (CA)
Inventor: BALDAUF DALE
IPC: B60K17/10
Filed: 1980-08-22
Granted: 1982-05-18
Abstract: AUXILIARY DRIVE SYSTEM WITH NEUTRAL                  Abstract of the Disclosure The steerable wheels of a hydraulically driven vehicle are provided with auxiliary motors which are connected in para-llel both with each other and with the motor which powers the main drive wheels.  A selector valve permits the motors for the steerable wheels to be optionally connected and disconnected from the reversible, variable displacement main pump.  Flow dividers in the hydraulic lines limit the maximum flow of fluid to any one hydraulic motor. The auxiliary motors are of the variable displacement type, enabling them to be destroked to neutral when disconnected from the main pump.  Destroking to neutral eliminates energy loss due to the pumping of large quantities of hydraulic fluid through a closed loop when the motors are driven by the wheels.
Patent CA-1142723-A (CA)
Inventor: GENG HANS
IPC: B29C48/50
Filed: 1980-09-05
Granted: 1983-03-15
Abstract: ABSTRACT OF THE DISCLOSURE     A worm extruder for replastifying miscast plastic webs has a cylinder bore communicating with a receiving chamber at a feed opening, the chamber and the bore being provided with a plurality of longitudinal grooves for catching plastic strips wound about the extruder shaft upon feeding to the receiving chamber.  Upon being snagged by the grooves, the strips are ground between a worm thread of the extruder shaft and a polished surface of the bore in which the catch grooves are disposed.  The receiving chamber is asymmetrically formed with a peripheral sickle-shaped space extending in part into the cylinder bore toward a resin outlet, while the shaft is formed in the region of the chamber with a plurality of worm threads having equispaced notches.  The walls of the chamber are polished.
Patent CA-1162639-A (CA)
Inventor: MEHALEK GLENN M
IPC: H04N1/04
Filed: 1980-09-18
Granted: 1984-02-21
Abstract: ABSTRACT OF THE DISCLOSURE           An  image  input  terminal  (IIT)  with  automatic document handler for feeding documents to be scanned into registered position on the IIT platen.  The IIT includes a pair of multi-element scanning arrays with cooperating scan lamp and optics on a movable carriage disposed in scanning relationship  with  the  platen.    Analog  image  signals generated by the scanning arrays are initially processed in separate channels and then combined into a serial stream. The  stream of  analog  image  signals  may  optionally  be thresholded or  screened  to  provide  binary  level  image signals or converted to multi-bit gray scale.          A   control   system   including   microprocessor provides  timing  and  control  signals  for  synchronizing operation of the scanning carriage, document handler, and image  signal  reading   and  processing   together  with electronic crossover between arrays to avoid loss of data, automatic signal gain control, and deletion of bad image signals or pixels.
Patent CA-1114853-A (CA)
Inventor: CRAIG IAN
IPC: F24C3/14
Filed: 1980-10-22
Granted: 1981-12-22
Abstract: ABSTRACT OF THE DISCLOSURE    The present invention provides a valved cap for use at the fuel inlet of a pressurized fuel tank.  The cap is removable for fueling the tank and is provided with a oneway valve adaped to connect to a pressure source. The oneway valve is normally closed for maintaining pressure within the tank and is automatically opened with connection to the pressure source.
Patent CA-1145214-A (CA)
Inventor: FOX CLARENCE D
IPC: F02M21/04
Filed: 1980-10-22
Granted: 1983-04-26
Abstract: FUEL ENRICHMENT APPARATUS FOR GASEOUS               FUEL MIXERS            Abstract:     A fuel enrichment apparatus and method is shown for a gaseous fuel carburetor of either a fixed venturi or air valve type.  The apparatus provides fuel enriching at the starting (Fig. 1) and wide open (Fig. 4) throttle conditions of the carburetor when the pressure drop in the induction passage is at a minimum.  The apparatus (44) also economizes on fuel usage by being closed to fuel transfer at idle speed and normal engine speed (Fig. 3).  The apparatus operates from the fuel supply line (28) to the carburetor with only the fuel pressure available in that line, thereby obviating the need for either a second fuel line or a high pressure fuel line.
Patent CA-1174762-A (CA)
Inventor: KURAFUJI SETSUO
IPC: G11C11/412
Filed: 1980-11-18
Granted: 1984-09-18
Abstract: A SEMICONDUCTOR RAM DEVICE     ABSTRACT OF THE DISCLOSURE      A static type semiconductor RAM device comprising a latch circuit at every column which detects, amplifies and temporarily memorizes a read-out signal from each of the memory cells disposed at the corresponding column and which has a large drive capacity.  In the static type RAM device according to the present invention, each of the memory cells is used as an element which only holds information, and data bus lines are driven by the latch circuits having a large drive capacity, so that the slow down of the read-out speed and the decrease of reliability of read-out data of the static type RAM device having a large memory capacity is prevented.
Patent CA-1154473-A (CA)
Inventor: CARLSSON LARS
IPC: B65H45/16
Filed: 1980-12-10
Granted: 1983-09-27
Abstract: ABSTRACT OF THE DISCLOSURE      The feed of a web provided with a pattern can be effected using a rotating driver.  When the feed is to be synchronous with a processing operation, or when for other reasons the feed must take place in register, the feed up to now has been monitored and corrected by photocell equip-ment and photocell marks made on the web.  In the case of webs which are provided with transverse crease lines, as is customary for example in the packaging industry, the feed as well as the keeping in register may be effected in accordance with the invention using a feed mandrel which engages with the transverse crease lines of the web by means of a number of edges arranged around the circumfer-ence of the mandrel.  Any faults in the mutual distance between the transverse crease lines are corrected auto-matically by the mandrel, and any special monitoring or subsequent correction of the feed is not necessary.
Patent CA-1166933-A (CA)
Inventor: MARSH MERVYN R
IPC: F04C14/00
Filed: 1980-12-10
Granted: 1984-05-08
Abstract: ABSTRACT      This invention provides apparatus for use in a drive transmission system comprising a pump adapted to perform work on a medium and means repetitively and automatically to unload the pump.  When connected with a flywheel driven by a prime mover an embodiment alternately performs work and then is unloaded to permit acceleration of the flywheel.  In use in a driven transmission system there is provided a flywheel driven by an engine, a pump driven by the flywheel, powered by the pump, and means repetitively to unload the pump permitting the engine to accelerate the flywheel and compensation means to power the hydraulic motor while the pump is unloaded.  The pump is preferably a rotary positive displacement pump having relief galleries eliminating the seal between pumping elements driving each cycle.
Patent CA-1158782-A (CA)
Inventor: HOLMBERG SCOTT H
IPC: H01L27/24
Filed: 1980-12-12
Granted: 1983-12-13
Abstract: ABSTRACT    A programmable cell for use in programmable electronic arrays such as PROM devices, logic ar-rays, gate arrays and die interconnect arrays.  The cells have a highly non-conductive state settable and substantially non-resettable into a highly conductive state.  The cells have a resistance of 10,000 ohms or more in the non-conductive state which are settable into the conductive state by a threshold voltage of 20 volts or less, a current of 25 milliamps or less, for 1000 microseconds or less.  The cells in the conductive state have a resistance of 500 ohms or less.  The cells have a maximum permittable processing temperature of 200° centigrade or more and a storage temperature of 175° centigrade or more.  The cells can be formed from chalcogenide elements, such as germanium tel-lurium and selenium or combination thereof.  The cells also can be formed from tetrahedral elements, such as silicon, germanium and carbon or combina-tions thereof.    Each cell in an array is a thin film deposited cell and includes an isolating device which can be a bipolar or MOS device or can be a thin film diode or transistor.  The associated addressing circuitry also can be conventional bipolar or MOS devices or thin film deposited devices.  The cells have a cell area of less than one square mil to provide a high cell packing density.
Patent CA-1146501-A (CA)
Inventor: REEVES JERRY L
IPC: B66F9/12
Filed: 1981-02-03
Granted: 1983-05-17
Abstract: Load Lifting Carriage Having Side Shift Adjustable Forks Abstract A load lifting carriage has horizontal rails, vertical side members, forks slidably supported on the rails, cylinders having outer jackets connected to the vertical side members and cylinder rods, and couplers which couple the rods to the forks to permit the forks to be simultaneously positioned at one side or the other side of the centerline of the carriage or at their full out position.         The carriage overcomes problems, such as on a fork lift truck, relating to laterally shifting the forks to certain positions on the carriage, the use of heavy sub-carriages which support and laterally shift the forks, and damage to the cylinders, which are rigidly connected to the forks, due to excessive impact.  The couplers permit positioning of both forks on either side of the carriage centerline, are non-load supporting, and will decouple the cylinders from the forks on receiving excessive side thrust and tipping loads.
Patent CA-1147362-A (CA)
Inventor: TOMARIN SEYMOUR A
IPC: E01C13/08
Filed: 1981-03-09
Granted: 1983-05-31
Abstract: TENNIS COURT SURFACE   ABSTRACT OF DISCLOSURE A stabilized sand surface for tennis courts is formed of a thick, densely tufted, coarse, synthetic fiber carpet which is covered with a single layer of fine, dry, silica sand. The carpet tufts each comprise numerous, closely packed, resilient, somewhat twisted strands of substantially equal length, which are tufted to a resilient carpet base sheet so that the strands tend to intertwine, but extend generally upright from the sheet. The sand layer covers the carpet and fills the interstices from the base sheet to substantially the full height or a little below the full height of the strands. The sand covering layer is stabilized by the mat-like network formed of the closely packed, intertwined, resilient strands against substantial permanent shifting or wind loss, while being relatively yieldable under impact of the tennis ball to produce a playing surface which simulates the playing quality of a clay-type tennis court surface.
Patent CA-1174255-A (CA)
Inventor: HAERTEL VOLKER
IPC: F16M7/00
Filed: 1981-03-19
Granted: 1984-09-11
Abstract: Abstract of the Disclosure:            Two-chamber motor mount with hydraulic damping, especially for vehicles, including an upper and lower chamber having rubber-elastic walls and being filled with liquid, the upper chamber being of hollow conical construction, a holding flange disposed between the walls of the upper and lower chambers, an inter-mediate plate formed with a throttle orifice located in vecinity of the holding flange, the upper and the lower chambers being connected to one another through the intermediate plate with the throttle orifice for preventing an hydraulic response for high frequency vibrations of small amplitude, the intermediate plate being responsive to high frequency vibrations of small amplitude and the throttle orifice-being automatically closeable at high pressures.
Patent CA-1176058-A (CA)
Inventor: BATHGATE RAYMOND J
IPC: C08J9/10
Filed: 1981-03-20
Granted: 1984-10-16
Abstract: ABSTRACT     The present invention relates to a composition com-prising a blowing agent and an activator characterised in that the blowing agent and activator have been micronised together rather than separately as hitherto; to methods for making the composition and to the use of the composi-tions in expanding polymers.
Patent CA-1173977-A (CA)
Inventor: SCHMIDT TERRANCE C
IPC: H04N3/23
Filed: 1981-03-31
Granted: 1984-09-04
Abstract: ABSTRACT OF THE DISCLOSURE          The input voltage to the deflection system of a raster scanned CRT is made variable and is controlled by a feedback network in such a way that the width of the raster remains constant regardless of scanning fre-quency variations.
Patent CA-1155881-A (CA)
Inventor: SHARMA DEVENDRA N
IPC: A63G31/00
Filed: 1981-04-13
Granted: 1983-10-25
Abstract: ABSTRACT OF THE DISCLOSURE     A vehicle for sports or amusement includes a circular or oval body, the periphery of which is a resilient collision bumper; a cockpit with a seat for the driver; a steering wheel in the cockpit; a motor or other drive for propelling the vehicle; and wheels or at least one endless belt beneath the body for carrying the latter.  The vehicle is used on a flat, slippery playing surface, e.g. glass, plastic or rubber which is surrounded by a wall for keeping the vehicle on the playing surface.
Patent CA-1167270-A (CA)
Inventor: QUADRANTI MARCO
IPC: A01N43/88
Filed: 1981-06-25
Granted: 1984-05-15
Abstract: Case 5-12938/=     Synergistic composition and method of selectively controlling weeds, especially in cereals and soybeans Abstract of the Disclosure Compositions which contain 4-(3',5'-dichloro-pyridyl-2'-oxy)-.alpha.-phenoxypropionic acid propargyl ester or 4-(3',5'-dichloropyridyl-2'-oxy)-a-phenoxythiopropionic acid propargyl ester and 3-isopropyl-(1H)-benzo-2,1,3-thiadiazin-4-one-2,2-dioxide in admixture with each other, exhibit synergistic herbicidal activity in crops of cereals and soybeans.
Patent CA-1171020-A (CA)
Inventor: LUNDEN SIDNEY L
IPC: B65G37/00
Filed: 1981-08-27
Granted: 1984-07-17
Abstract: Abstract of the Disclosure A board feeder (10) is described for loading boards (11) one at a time from a feed station (12) to a delivery sta-tion (13).  The individual boards (11) are gripped on opposite horizontal surfaces, lifted over a stop (23), and deposited at the delivery station.  Clamp members (24,25) are situated on opposite horizontal board sides for moving together to grip the board and for movement between the feed station (12) and the delivery station (13).  A top clamp member (24) moves in an arc back and forth over the stations and stop.  A bottom clamp member (25) moves in a closed curve matching the stroke of the top clamp arc.  A top part of the closed path represents a de-livery stroke starting at the feed station and passing over the stop (23).  The top part of the path ends at the delivery sta-tion.  The remainder of the top clamp path is a return stroke situated below the stop (23) and stations.
Patent CA-1159289-A (CA)
Inventor: HUMPHREY WILLIAM E
IPC: G02B3/06
Filed: 1981-09-17
Granted: 1983-12-27
Abstract: REFLECTION REJECTION SPHERICIAL OPTICAL TRAIN       COMPOSED OF TIPPED LENS ELEMENTS   HAVING CYLINDRICAL COMPONENTS .                 Abstract of the Disclosure A reflection rejecting spherical optical train is disclosed. At least two optical elements each having cylin-drical components are disposed along an optical axis The elements are each crossed one with respect to another so that the total and combined optical output comprises an overall spherical lens. Each of the lens elements having a cylin-drical component is tilted with respect to planes normal to the optic axis. Light passing along the optical axis which is reflected at the defined optical interfaces is rejected by the reflection at angles which do not include a return along the optic axis; reflection rejection occurs. Preference is given to a lens train of three or more lens elements having cylindrical components, with the near point of each tilted lens element being located at equal angular intervals about the optic axis.  A preferred embodiment: is illustrated util-izing three tipped spherical lens elements -- typically positive -- which with each of these elements having its near point to one end of the lens train spaced at 120° angular intervals about the optic axis.
Patent CA-1181318-A (CA)
Inventor: CHOW PETER C M
IPC: F16L55/00
Filed: 1981-10-20
Granted: 1985-01-22
Abstract: ABSTRACT OF THE DISCLOSURE     A multi-stage pressure regulating system including a pilot-governed main pressure reducing regulator, with one or more passive back pressure regulators arranged in tandem therewith.          The regulators are valves of the type conditioned to open when the upstream pressure therein overcomes a jacket pressure.  The jacket in the main valve is loaded by upstream fluid, but a pilot, which monitors a particular fluid flow characteristic, such as pressure, at a selected location in the pipeline, controls bleeding of the jacket as necessary to regulate flow through the main valve so as to maintain a predetermined value or level of the characteristic being monitored.  Hence, flow through the main valve is controlled solely by the pilot device, but its discharge to the ultimate downstream level, is through at least one auxiliary valve, the jacket of which is loaded with a pneumatic pressure at a suitable level, so that the pressure drop to the downstream level is in two or more stages.
Patent CA-1166346-A (CA)
Inventor: MAY CURTIS L
IPC: H04N5/21
Filed: 1981-11-16
Granted: 1984-04-24
Abstract: ADAPTIVE ENHANCEMENT OF SIGNAL-TO-NOISE      RATIO IN TELEVISION IMAGERY            Abstract of the Invention A noise reduction filter for a television receiver in which two running averages of video signal amplitude are generated over regions of the video picture where the brightness level is substantially constant.  One or the other of the averages is used to control intensity to obtain a reduction of random noise in the video signal. In areas of the picture where rapid changes in intensity occur, the averages are not used in favor of the unmodified video signal.
Patent CA-1190861-A (CA)
Inventor: BELLATI HANS
IPC: F01D25/16
Filed: 1982-01-13
Granted: 1985-07-23
Abstract: Abstract of the Disclosure To avoid torsional stress on a foundation crossbeam and undue movement of a bearing housing at the mounting point, it is proposed, in order to displace the fixed point of the stationary parts of a turbine, that the turbine housing be connected rigidly in an axial direction to the foundation crossbeam by a retaining device via a supporting rib and a sway brace.  Further, the turbine housing is mounted on the bearing housing via a mounting lug resting axially movably on a bearing face.