baber/WOPTO huggingface dataset:
Patent CA-1107207-A (CA)
Inventor: TWICKLER ROBERT G
IPC: F16D55/00
Filed: 1979-04-05
Granted: 1981-08-18
Abstract: Abstract A combination no-back brake and torque limiter assembly including an input shaft and an output shaft and with a brake including interleaved brake plates associated with the output shaft and with the brake plates normally spring-urged into pressure engagement, when there is no drive of the input shaft, to prevent rotation of the output shaft to provide the no-back brake operation. Torque-responsive structure connected between the input and output shafts senses input shaft torque to initially cause release of the pressure engagement of the brake to permit rotation of the output shaft and also senses a maximum torque condition to re-engage the brake for torque limiting operation.
Patent CA-1100538-A (CA)
Inventor: HENDERSON PETER J
IPC: B65H5/06
Filed: 1979-04-11
Granted: 1981-05-05
Abstract: METHOD AND APPARATUS FOR FEEDING DOCUMENTS WITH VARIABLE DRIVING FORCE              Abstract To feed sheet material such as punched cards, copy sheets and the like along a given feed path, the driving force applied to the material is altered in dependence upon the specific driving force requirements at any given portion of the feed path.  Where a pair of feed rollers are used, (a drive roller and or idler roller), the driving force is varied by selectively varying the nip pressure between the rollers. Control of nip pressure can be effected by electro-magnetic means operatively connected one or other of the idler and drive rollers.
Patent CA-1119092-A (CA)
Inventor: DILGREN RICHARD E
IPC: E21B43/24
Filed: 1979-04-18
Granted: 1982-03-02
Abstract: A B S T R A C T      A relatively viscous oil is produced from a subterranean reservoir by establishing a hot channel of preferential per-meability through the reservoir between injection and production locations, then flowing through the reservoir a hot foam of aqueous liquid, non-condensable gas and surfactant, and con-trolling the mobility of the foam so that heated oil is produced and hot fluid is flowed through portions of the reservoir within and outside the channel of preferential permeability.
Patent CA-1101689-A (CA)
Inventor: KERN GEORG
IPC: E04C5/03
Filed: 1979-05-09
Granted: 1981-05-26
Abstract: Abstract of the Disclosure A steel rod of the type having a generally rounded core and two or more spaced series of parallel ribs projecting therefrom, so constructed that the ribs act as threads to attach the rod to an anchoring or connecting device which has matching internal threads, is provided which in addition to the rib structure has a longitudinal groove in at least one of the regions between the adjacent ends of two of the series of ribs.  The longitudinal groove or grooves provides a canal which permits the cavities between the rod and an enveloping anchoring or connecting means to be filled with cement or similar material which will protect the internal surfaces against corrosion.
Patent CA-1132299-A (CA)
Inventor: LOSHAEK SAMUEL
IPC: C08F12/00
Filed: 1979-05-31
Granted: 1982-09-21
Abstract: ABSTRACT     This invention relates to bonnets for making contact lenses and contact lenses having high gas permeability shaped from a polymer selected from (a) polymers consist-ing essentially of the polymerization reaction products of one or a combination of different alkyl styrene monomers with one or more alkyl substituents on the aromatic ring and an unsubstituted vinyl group, and optionally at least one compatible cross-linking monomer, (b) polymers consis-ting essentially of the polymerization reaction products of at least one alkyl styrene monomer as defined in (a) with one or a combination of other styrene monomers selected from styrene, styrene with an alkyl substituent on the vinyl group only, and styrene with both an alkyl substituent on the vinyl group and one or more alkyl sub-stituents on the aromatic ring, and optionally at least one compatible cross-linking monomer and (c) polymers consisting essentially of the polymerization reaction products of one of the styrenes defined in (a) and (b) or combinations thereof with at least one compatible mono-olefinically unsaturated polymerizable monomer, and optionally at least one compatible cross-linking monomer.
Patent CA-1119321-A (CA)
Inventor: NICOL STUART K
IPC: B03B9/00
Filed: 1979-06-14
Granted: 1982-03-02
Abstract: ABSTRACT OF THE DISCLOSURE          Process for beneficiating and dewatering an aqueous slurry of particulate material.  The slurry is first subjected to froth flotation and the resulting froth provides a concentrate.  An agglomeration agent, preferably a liquid hydrocarbon is added to the concentrate to cause selective agglomeration of the particulate material in the concentrate.          The concentrate may then be subjected to a shear regime, for example by means of a rotary impeller or agitator, before passing to dewatering equipment such as a screen, filter or centrifuge.  Alternatively the concentrate with added agglomeration agent may be passed directly to the dewatering equipment.
Patent CA-1109494-A (CA)
Title: Process for recovering unreacted propylene in the mass polymerization
Inventor: MAYER GUNTER
IPC: C08F6/00
Filed: 1979-06-14
Granted: 1981-09-22
Abstract: PROCESS FOR RECOVERING UNREACTED PROPYLENE IN       THE MASS POLYMERIZATION          Abstract of the disclosure During the recovery of the unreacted propylene from the mother liquor obtained in the polymerization of liquid propylene, the major part of the propylene is evaporated in a first evaporation step at a low temperature and the remaining part is evaporated in a second evaporator at a high temperature.          In this way an early agglomerization of the atactic and/or low-molecular weight polymer dissolved in the mother liquor and fouling of the heat exchanger tubes and/or of the column trays is avoided.
Patent CA-1100548-A (CA)
Inventor: WIEDENBECK ROGER D
IPC: F16C11/06
Filed: 1979-06-26
Granted: 1981-05-05
Abstract: ABSTRACT OF THE DISCLOSURE        The invention pertains to a rotary joint wherein pres-sures imposed upon the joint by the pressurized medium therein are internally compensated.  The joint is characterized by its ability to accomodate axial drum expansion, minimize rotative friction and the major joint components are self-aligning with respect to rotary motion.  The basic components include a body member receiving an end of a nipple member, one of the members being fixed against axial displacement.  A single annular nip-ple seal mounted upon the nipple member within the body member chamber engaging a seal ring constitutes the sole mechanical connection between the body and nipple members, and the fact that the nipple seal is axially displaceable upon the nipple member permits an internal compensation of axial forces pro-duced within the joint, permits accomodation of axial thermal expansion of the joint components, and the spherical configur-ation of the nipple seal provides self alignment between the body and nipple members.
Patent CA-1122305-A (CA)
Title: Method of and apparatus for producing plate  material having uniform width and lengthwise  thickness variation
Inventor: HASEGAWA YOSHIMICHI
IPC: B21B37/26
Filed: 1979-07-20
Granted: 1982-04-20
Abstract: ABSTRACT OF THE DISCLOSURE         A method of producing a plate material having a uniform width and a lengthwise thickness variation by imparting plastic deformations to a work by means of widthwise rolling rolls and thicknesswise rolling rolls.          The method has the steps of measuring the travelling amounts of the work at the outlet sides of the widthwise rolling rolls and the thicknesswise rolling rolls, continuously changing the roll gap of the widthwise rolling rolls in accordance with the measured travelling amount and a predetermined condition so as to reduce the width of the work at portions of the latter where the width is expected to be increased as a result of the subsequent thicknesswise rolling so that the work after the thicknesswise rolling may have a uniform width, and changing the thickness of the work by continuously changing the roll gap in the thicknesswise rolling rolls in accordance with the measured travelling amount and a predetermined condition.  Also, disclosed is an apparatus for carrying out this method.
Patent CA-1123586-A (CA)
Title: Method and apparatus for assembling dynamoelectric  machine stators
Inventor: WALKER ROBERT G
IPC: H02K15/06
Filed: 1979-08-03
Granted: 1982-05-18
Abstract: ABSTRACT OF THE DISCLOSURE    Method and apparatus for forming a stator for a dynamoelectric machine by inserting prewound coils into a slotted stator core in-cludes enlarging the slot openings or gap between certain adjacent pairs of stator teeth, placing the prewound stator windings in se-lected stator core slots and thereafter reducing the slot opening or gap between those certain adjacent pairs of teeth. The disclo-sure apparatus includes a stator bore support and a series of punches to be placed in stator slots and collapsed radially in-wardly to bend the stator teeth tips to conform to the bore sup-port.  An otherwise conventional coil inserting or injecting machine has unique blades, each of which has a pair of elongated depres-sions for accepting the respective formed stator teeth tips, and a pair of ribs outside the depression for spanning the corresponding tooth.  Reforming of the stator teeth so as to provide a cylindri-cal bore stator may be accomplished by a plurality of cylindrical rollers which simultaneously engage the stator bore and traverse that bore interior surface to displace the stator teeth tips ra-dially outwardly, thereby providing a wound stator for further processing having a substantially reduced iron gap or for a given iron gap containing windings of a larger wire size than normally insertable in a stator having that iron gap.  The slot openings may be enlarged either by mechanical forming of the stator tooth tips or the stator laminations may be initially stamped with this deformation so that the stator core or stack of such laminations need not be mechanically formed to increase the iron gap available for the wire insertion process.
Patent CA-1127914-A (CA)
Title: Releasably flocked fiber base and method making  same
Inventor: HIGASHIGUCHI SHIGEHIKO
IPC: B44C1/16
Filed: 1979-08-17
Granted: 1982-07-20
Abstract: ABSTRACT OF THE DISCLOSURE:          A transferable flocked fiber design or sticker material which comprises a releasably flocked fiber base including fibers releasably flocked at one ends to one major surface of a release support base sheet in upright position by means of a release adhesive layer; and a thermoplastic and pressure-sensitive synthetic resin layer applied to the other ends of the flocked fibers.  The entire area of the fiber-flocked surface of the release support base sheet is coloured or printed or a selected area of the surface is coloured or printed in a desired design or pattern and hot melt resin in the form of particle or pellet is sprinklet over the coloured or printed surface of the release support base sheet.  A method for preparing the releasably flock-ed fiber base in which a release adhesive layer is formed on one major surface of a release support base sheet, fibers are relea-sably flocked to the adhesive-applied surface of the release support base sheet and the adhesive-applied surface is coloured or printed.
Patent CA-1159728-A (CA)
Inventor: SCHROETER SIEGFRIED H
IPC: C08J7/046
Filed: 1979-10-19
Granted: 1984-01-03
Abstract: ABSTRACT OF THE DISCLOSURE A non-opaque coated polycarbonate shaped article, and a process for producing the same, having improved abrasion and chemical solvent resistance comprising a polycarbonate substrate having thereon (i) a primer layer comprised of a thermoplastic acrylic polymer containing functional groups; and (ii) a top coat containing a thermoset organopolysiloxane on the primer layer.  The process for producing the coated polycarbonate article comprises the steps of:  (i) priming the surface of a polycarbonate substrate by forming a primer layer comprised of a thermoplastic acrylic polymer containing functional groups (ii) applying a top coat composition containing a further curable organo-polysiloxane onto the primed substrate; and (iii) curing the further curable organopolysiloxane to form a hard, abrasion and chemical solvent resistant top coat which is tenaciously and durable adhered to the polycarbonate substrate.
Patent CA-1123274-A (CA)
Inventor: MCNEELY GERALD W
IPC: G01K3/00
Filed: 1979-11-09
Granted: 1982-05-11
Abstract: TEMPERATURE INDICATOR     ABSTRACT            A temperature indicator including a backing strip with an embossed well stamped therein is provided.  The well contains a matrix carrier which is impregnated with a thermally responsive fusible chemical.  The bottom of the well is painted a bright color.  The impregnated matrix is placed over and substantially covers the colored bottom of the well.  The top of the well is covered by a transparent film.  At a temperature below a prede-termined level, the colored bottom of the well is substantially invisible due to the impregnated matrix being opaque, and at temperatures above such predetermined level, the colored bottom of the well is clearly visible due to the transparency of the impregnated matrix upon melting of the chemical.
Patent CA-1135446-A (CA)
Inventor: GLOWAKY RAYMOND C
IPC: B01D21/01
Filed: 1979-12-03
Granted: 1982-11-09
Abstract: Abstract Amine polymers are used to dewater suspensions of particulate matter in water.  The polymers are synthesized by the reaction of a nitrile polymer such as polyacrylo-nitrile, an aminating agent, and a sulfur activator. The dewatering properties of these amine polymers can be beneficially employed to treat sewage sludge, silt laden water, industrial waste and the like.
Patent CA-1149156-A (CA)
Inventor: NAPADOW STANLEY C
IPC: B05B15/12
Filed: 1979-12-28
Granted: 1983-07-05
Abstract: ABSTRACT A protected conveyor for a spray chamber or spray booth is provided with a pressurized housing and an air curtain means which substantially isolates the con-veyor from the deleterious fluids within the spray booth and substantially isolates the articles from droppings from the conveyor. More specifically, a blower supplies air under pressure to a plenum connected to a nozzle means which discharges a thin curtain of air transversely across a slot in the housing wall and transversely across depend-ing conveyor hangers extending downwardly through the slot. The blower also supplies air under pressure to the housing to provide air discharge out of the housing slot. The transverse air discharge combines with and redirects the air discharge through the slot as common continued air movement transversely away from the conveyed articles and toward an external air exhaust from the booth. The hous-ing, conveyor and air curtain means are formed in an inexpensive manner.
Patent CA-1088825-A (CA)
Inventor: KINGSBURY WILLIAM L
IPC: F02B19/14
Filed: 1980-01-02
Granted: 1980-11-04
Abstract: DIESEL ENGINE COMBUSTION CHAMBERS          Abstract of the Disclosure Combustion chamber arrangements for divided cham-ber (prechamber) type diesel engines characterized by relatively low emissions of HC, CO and NOx, relatively low noise and physical stress and good fuel economy and power output and having: 1.  canted valves in the heads and forming therewith lateral wedge-shaped valve recesses, 2.  cooperating wedge recesses in the pistons forming disc or pancake-like valve pockets in conjunction with the cylinder head recesses, and 3.  in-head prechambers closed by flame cups having wide connecting passages in their floors and side outlets for connection through channels with the edges of the valve pockets.
Patent CA-1136832-A (CA)
Inventor: BIENVENU GERARD
IPC: B01F13/08
Filed: 1980-01-16
Granted: 1982-12-07
Abstract: ABSTRACT OF THE DISCLOSURE           The process comprises subjecting a magnetic material dispersed in the fluid to the action of a variable magnetic field.  It is thus possible to provide efficient stirring of this fluid and to facilitate reactions taking place, between a constituent of the fluid medium, and particles dispersed in this fluid, including a substance at least partly active at the surface.  They may be, in particular, a ferromagnetic solid substance and a compound in solution in the fluid and non-magnetic.
Patent CA-1131409-A (CA)
Inventor: KNOPF HERBERT
IPC: C14C3/06
Filed: 1980-03-05
Granted: 1982-09-14
Abstract: Bayer 3877-LH            AGE RESISTANT CHROME TANNING AGENTS              Abstract of the Disclosure A pulverulent spray dried chrome tanning agent having about 1.8 to 2.6 mols of formate/mol Cr2O3  a basicity of at least about 42% and a sulphate content of at least about 1.8 mols SO3/mol Cr2O3, maintaining its solubility in water over a prolonged period of time compared with a similar composition having a lower sulphate content, i.e. the latter becomes increasingly water-insoluble with the passage of time.            Le A 19 549
Patent CA-1111645-A (CA)
Inventor: COYNE GERARD G
IPC: F25B29/00
Filed: 1980-03-21
Granted: 1981-11-03
Abstract: ABSTRACT OF THE DISCLOSURE            An apparatus and method of attaching an auxiliary heat exchanger to a split refrigeration system. The auxiliary heat exchanger is in heat transfer relationship with a supply of water.  Connectors are provided in bypass relationship with a valve arranged in the liquid line.  The auxiliary heat exchanger, when desired, is closed placing the auxiliary heater in series flow relationship with the system condenser.
Patent CA-1135145-A (CA)
Inventor: CONNOR GERALD I
IPC: A61F7/00
Filed: 1980-03-27
Granted: 1982-11-09
Abstract: TITLE:  PROCTOLOGIC DEVICE FOR THE THERAPEUTIC TREATMENT OF HEMORRHOIDS     Abstract of the Disclosure A proctologic device is described for therapeutically treating hemorrhoids extending from the anal canal wall of a patient.  The device includes an anal canal appliance for inti-mately contacting the anal canal wall and hemorrhoids.  The appliance has sufficient length to extend from the anus to the rectum and sufficient diameter to intimately contact the wall tissues without overly stretching the sphincter muscles.  The appliance contains an internal electrical resistor for generat-ing heat in response to the application of electrical energy and a temperature transducer for sensing the temperature of the appliance in the anal canal.  The device has a portable case containing an electrical energy storage battery and a con-trol circuit for controlling the application of the electrical energy to the resistor to maintain the temperature of the appli-ance above body temperature.  The control circuit has safety network for discontinuing the application of heat to the appli-ance should the sensed temperature fall below a preset low temperature or go above a preset elevated temperature.
Patent CA-1128432-A (CA)
Inventor: WEBER DONALD D
IPC: B62B5/04
Filed: 1980-04-03
Granted: 1982-07-27
Abstract: BRAKE MECHANISM FOR A HAND OPERATED LIFT TRUCK                 ABSTRACT OF THE DISCLOSURE A brake mechanism for hand operated lift trucks in which two brake shoes are pivotally mounted on the lower end of the handle assembly so that contact between one or the other shoe and the brake drum is accomplished by either upward or downward movement of the handle. The pivotal mounting of the shoes makes them self adjusting. A spring is used to return the  handle to a brake applied position when the handle is released by the operator.
Patent CA-1145015-A (CA)
Inventor: STEPHEN JAMES H
IPC: G08B13/24
Filed: 1980-05-16
Granted: 1983-04-19
Abstract: Improvements in or relating to surveillance systems ABSTRACT      A surveillance system transmits a microwave carrier signal through a surveillance zone (14).  Two  low frequency enemy fields are also established in the zone being produced by respective pairs of closely spaced apart low frequency signals radiated from opposite sides of the zone.  A receptor reradiator in the zones receives these signals and reradiates a reply signal to a receiver the reply signal consisting of the microwave carrier signal amplitude modulated in accor-dance with the instantaneous value of the low frequency fields at the location of the receptor reradiator.  The receiver separates out preselected intermodulation products and activates an alarm only when the preselected intermodu-lation products are present.
Patent CA-1138361-A (CA)
Inventor: KESSICK MICHAEL A
IPC: C10G1/04
Filed: 1980-06-06
Granted: 1982-12-28
Abstract: ABSTRACT OF THE DISCLOSURE        Slimes from the slimes pond formed from the tailings stream of a hot water process for recovery of bitumen from oil sands is treated to effect separation of bitumen, clay and aqueous phases therefrom by a controlled two-stage addition of slaked lime thereto.  The first slaked lime addition is used to form a water-in-oil emulsion from the bitumen and the second slaked lime addition is used to effect flocculation of the clay suspension following separation of the water-in-oil emulsion.  The tailings' stream from a hot water process is treated in similar manner to avoid the formation of slimes.       In another modification of the hot water process, the middlings stream from the primary separation step is mixed with slaked lime prior to passage to the flotation scaven-ging operation in order to improve the separation of bitumen from the aqueous phase.  The bitumen-free tailings stream which results is readily dewatered using further slaked lime addition settling.
Patent CA-1165008-A (CA)
Inventor: OCHMANN RUDOLF
IPC: H05G1/36
Filed: 1980-07-07
Granted: 1984-04-03
Abstract: ABSTRACT:           The temperature of the anode disc of a rotary-anode X-ray tube is continuously determined by means of the method apparatus in accordance with the invention.  When the temperature exceeds a first limit value, the power of the X-ray tube is reduced to a fraction (for example, 80%) of the otherwise permissible power.  When a second limit value of the anode disc temperature is exceeded, exposures are completely inhibited.  In the case of exposures which are performed in rapid succession with a comparatively low power, it may occur that the anode disc temperature does not reach the second limit value, but that the mean value of the applied electric power is so high that the bearing of the rotary anode, and possibly also the joint between the anode shaft and the rotor, is overloaded.  Overloading is prevented by the fact that the mean value of the power applied to the X-ray tube is also monitored, the exposure being inhibited when this mean value is too high.
Patent CA-1133886-A (CA)
Title: Dispositif de levage en particulier moufle
Inventor: SINGER EDOUARD
IPC: B66D3/04
Filed: 1980-07-08
Granted: 1982-10-19
Abstract: Abrégé L'invention concerne un dispositif de levage, en particular moufle constituée d'une chape pourvue à sa partie supèrieure d'un organe d'accrochage et formée de deux ailes parallèles dont une présent une échancrure, d'un axe, d'un réa, mobile sur cet axe et placé entre les deux ailes de la chape, et d'au moins un réa fixe enfilé sur une extrémité de l'axe faisant saillie par rapport à l'aile de la chape dans laquelle l'échancrure est réalisée et sur lequel l'un des brins de la corde enroulée autour du réa mobile est susceptible d'être enroulé après passage à travers l'échancrure réalisée dans l'aile de la chape interposée entre le réa mobile et le (ou les) réa(s) fixe(s).  Il comporte, en combinaison, d'une part, un patin monté sur une plaque coulissante et coopérant avec le réa mobile pour imnobiliser ce dernier et, d'autre part, un second réa fixe composé de deux flasques à l'écartement variable dont l'un est solidaire de la face externe due capot, appliqué contre le premier réa fixe, et dont l'autre, coulissant sur l'axe est rappelé élastiquement pour un princement du brin libre de la corde entre les deux flasques.