baber/WOPTO huggingface dataset:
Patent CA-1116895-A (CA)
Inventor: HANSON GUSTAF H
IPC: A61C7/28
Filed: 1979-02-22
Granted: 1982-01-26
Abstract: Abstract of the Disclosure A new orthodontic bracket comprises a bracket body (20) with a mesial-distal slot (42) for the reception of an arch wire (46 or 80) and a resilient retainer member (48) for retaining the arch wire in the slot, the retainer member being movable on the bracket body in the occlusal-gingival directions between s slot-closed position (e.g. Fig. 5) and a slot-open position (e.g. Fig. 4).  The part (50) of the retainer member which closes the slot extends into the slot, so that movement of the retainer member out of the slot-closed position takes place against its resilience as the opposed embracing retainer parts are moved apart.  Moreover, any force urging the arch wire out of the slot and contacting it with the retainer urges-the retainer to the slot-closed position.  In the slot-open position the retainer member can be "parked" on a mesial-distal extending parking land (70) on the bracket body. A labial-extending gingival step surface (60) is provided to determine the slot-closed position and to shield the adjacent bottom edge of the retainer member. The lingual end (52) of the retainer member protrudes into a recess (66) in the base, the shape of the recess enabling the member to be moved from slot-closed to slot-open position by inserting a sutiable tool into the recess.  A new arch wire (80) for use with such an orthodontic bracket has a convex curved labial face (82) and a lingual face (88) that is lingually inclined in the direction from the gingval face to the occlusal face to form a wedge shaped profile, the wire receiving slot (42) having a complementary cross-section.  Such a wire provides better control of torque, while at the same time the bracket is usable with a round arch wire (46).
Patent CA-1087136-A (CA)
Inventor: SCHMIDT LEWIS W
IPC: B30B9/30
Filed: 1979-02-26
Granted: 1980-10-07
Abstract: ABSTRACT OF THE DISCLOSURE           A lid unit for a refuse compactor which includes a bin having a power-actuated compacting blade therein; the lid unit comprising a flat, dual-section lid supported on the bin in normally closing relation thereto, the lid embodying a front section and a rear section transversely hinged together at adjacent edges, the lid being longitudinally shiftable a limited distance on the bin to different selective positions, and instrumentalities provided between the lid and the bin arranged to prevent opening of either of the lid sections when the lid is in one position, to permit the front lid section only to be opened when the lid is in a second position, and to permit the rear lid section to be folded onto the front lid section and the folded-together sections then swung to depend in front of the bin when the lid is in a third position.  The prevention of opening of either of the lid sections is for safety during operation of the compacting blade; the opening of only the front lid section is for the purpose of depositing refuse into the bin; and the folding of the lid sections and, as folded, their dependency in front of the bin is to allow the then open-top bin to be engaged and partially inverted for dumping into a hauling truck.
Patent CA-1076356-A (CA)
Inventor: MECKLER GERSHON
IPC: F25B27/00
Filed: 1979-03-12
Granted: 1980-04-29
Abstract: ABSTRACT An air conditioning apparatus and method are disclosed.          The apparatus includes a chemical dehumidifier which employs an aqueous hygroscopic solution of glycol and a solar energy collector for use in regenerating the solution.  Air to be conditioned is circulated through a contactor of the chemical dehumidifier, in contact with cooled glycol solution.          Concentrated hygroscopic glycol solution is circulated from a regenerator to the contactor, while dilute solution is circulated from the contactor to the regenerator.  Energy from the solar collector is transferred to facilitate concentration thereof.  In one disclosed embodiment energy from the solar collector is also transferred to the generator of heat-powered refrigeration apparatus, e.g., absorption or rankine engine driven refrigeration apparatus.  The condenser of the refrigeration apparatus may operate to heat the glycol solution in the regenerator of the dehumidifier and the evaporator may cool the concentrated glycol solution in the contactor and/or may supply chilled fluid to a heat exchanger for cooling the dehumidified air.  In a modified embodiment, a diesel engine drives the refrigeration apparatus.  Waste heat from the diesel engine either augments the solar energy for regenerating the glycol solution or regenerates desiccant from a second stage of dehumidification.
Patent CA-1103817-A (CA)
Inventor: ECHEVARRIA ANGEL M
IPC: A47C27/08
Filed: 1979-03-27
Granted: 1981-06-23
Abstract: ABSTRACT OF THE DISCLOSURE           The exterior of a waterbed mattress is defined by a pair of registering frame or panel members having resilient borders of substantial height, the upper one of which includes a top pad and a resilient border of rectangular cross-section, fitting around an inclined resilient border attached to a base pad on the lower panel member.  A cavity or enclosed volume defined between the two panel members is filled with separate pliant water containers, which may be elongated tubes or have other configurations, and which have only limited stretchability in response to pressures normally exerted by a user.  The separate water containers yield locally to user pres-sure and conform to the user's shape, but do not transmit significant side forces or wave motion to other tubes, thus improving the sleeping character-istics of the surface.  A quilted cover surface and side margin are attached to the top cover member, the quilted sleeping surface including foam of a substantial thickness, nominally of the order of 1-1/2" before quilting, to provide a luxurious feel and appearance while supplying added thermal insula-tion relative to the waterbed.  A water barrier or collector sheet may be disposed under the water containers and across the open cavity defined by the upper-side of the lower panel.  With this construction, the individual tubes may be filled, moved, and emptied very readily.  Should leaking occur in a tube it would not damage the floor or furniture.
Patent CA-1105910-A (CA)
Inventor: BALDWIN SAMUEL L
IPC: F21V15/01
Filed: 1979-04-06
Granted: 1981-07-28
Abstract: ABSTRACT OF THE DISCLOSURE    An indoor lighting fixture provides semi-indirect symmetrical light distribution.  The fixture, which is adapted to be positioned adjacent the ceiling of a room, comprises a high intensity gaseous discharge lamp mounted at its base on the ceiling and extending downwardly into a box-shaped reflector open at its top with reflective sides and a diffuser panel at its bottom.  Positioned in the reflector and surrounding the lower portion of the lamp is a dish-shaped semi-transparent reflector which reflects a portion of the incident light toward the ceiling and transmits a portion of the light to the area below the fixture.  The arrangement is such that direct and indirect light are distributed by the fixture, while glare is avoided by shielding the light source from direct view of the room occupants.
Patent CA-1131042-A (CA)
Title: Pressure sensing apparatus
Inventor: TEMPLETON JOHN S III
IPC: G01L1/22
Filed: 1979-04-19
Granted: 1982-09-07
Abstract: ABSTRACT      A pressure sensing apparatus for measuring ice pressure forces while embedded in an ice pack is disclosed.  The pressure sensing apparatus is thin in comparison to its width and length, having a stiffness similar to the average anticipated stiffness of the embedding material.  The apparatus includes a housing having a first and second substantially flat plate con-nected at their outer edges and sensitive to external ice pressure forces. A thin member is supported within the housing between the first and second plate by a plurality of standoffs or ribs which subjected the member to reverse curvature bending upon the application of external pressures to the first and second plates.  Wire resistance strain gauges are attached to the thin member to measure the strain of the member when subjected to the bending. In this manner, the pressure against the sensor can be correlated with the strain measurements resulting on the member.
Patent CA-1144739-A (CA)
Inventor: ELBERT RAYMOND J
IPC: C01B33/02
Filed: 1979-05-02
Granted: 1983-04-19
Abstract: PRODUCTION OF LOW-COST POLYCRYSTALLINE SILICON POWDER              Abstract of the Disclosure A silicon-containing feed gas, such as silane, or a halosilane, is decomposed in the free space zone of a reactor maintained at from about 390-1400°C, preferably at about 800-1000°C,  to form a silicon powder and by-product gas.  The silicon  powder is separated from said gas in a settling  chamber with additional silicon powder being recovered by the passage of the by-product gas through dust collection means. By introducing the feed gas turbulently into the free space zone, decomposition at the reactor wall and  a silicon wall deposit build-up can be minimized.  The feed gas may be introduced into the reactor essentially without dilution or together with hydrogen or an inert carrier gas.  Silane is the preferred feed gas, with the feed gas preferably being injected into the free space zone through injector means at the top of the reactor.  By preheating the injected feed gas, increased production rates or a reduction in the reactor wall temperature may be acheived.                 S P E C I F I C A T I O N
Patent CA-1120358-A (CA)
Inventor: BLACKSTONE ROBERT L
IPC: F41B5/00
Filed: 1979-06-12
Granted: 1982-03-23
Abstract: COMPOUND BOW                  ABSTRACT OF THE DISCLOSURE             A compound bow having a handle and flexing limbs extending outwardly from the handle.  A bracket is carried adjacent a medial portion of the handle and a pair of arms are pivotally secured thereto.  The arms diverge rearwardly from the bracket.  A string engaging member is carried adjacent the outer ends of each of the arms.  A pair of pulleys are carried adjacent each remote end of the limbs.          A bow string has opposed ends thereof attached to a respective inner end of a respective arm.  The string extends around the pulleys on the ends of the limbs and the string engaging members so that when a notching portion of the string is drawn for shooting an arrow, the pivotal arms are pivoted from an open extended position to a partially closed position providing a uniform draw of the string when drawing the string from a released position to a fully drawn position.  A pair of eccentric cams are carried adjacent the arms over which respective opposed end portions of the string extends.  These eccentric cams are pivotally mounted so that when the string is pulled to the fully drawn position, the cams are pivoted, minimizing or steadying the holding force required for holding the string.
Patent CA-1126797-A (CA)
Title: Core mounting for solenoidal electric field lamps
Inventor: ANDERSON JOHN M
IPC: H01J65/04
Filed: 1979-06-22
Granted: 1982-06-29
Abstract: CORE MOUNTING FOR SOLENOIDAL ELECTRIC FIELD LAMPS     Abstract of the Disclosure A mounting assembly for a ferrite core disposed within a solenoidal electric field lamp comprises first and second members disposed in chord-like fashion, each having an opening for receiving the core, and in one embodiment, a third member which encircles the core in a chord-like fashion and also encloses the first and second members so as to fixedly hold them to the core when ends of the first and second members are stressedly anchored to points distal from the core.  In another embodiment the third member comprises a circular band to which said first and second members are attached, said band being readily affixable to a glass pedestal header assembly.  The mounting means cooperate with the lamp assembly so as to reduce the level of electromagnetic interference produced, and can be fabricated rapidly and inexpensively
Patent CA-1122106-A (CA)
Inventor: YOSHIMOTO HIROMU
IPC: C22F1/04
Filed: 1979-07-13
Granted: 1982-04-20
Abstract: Abstract of the Disclosure During the process in which an aluminum strip is moved in a floating mode, the strip is first heated, then cooled and annealed.  Then the aluminum strip is cooled, the strip is moved while being curved into a wave-like form toward the moving direction thereof.  The aluminum strip is curved in a manner as described, and as a result, the aluminum strip increases in antibuckling stress.  The increased antibuckling stress overcomes a thermal stress produced in the direction of the width of the aluminum strip  during the process of cooling.          Accordingly, the aluminum strip is cooled without formation of wrinkle parallel to a longitudinal direction of the strip.
Patent CA-1127831-A (CA)
Inventor: AZIZ MOHAMMED I
IPC: D06C23/04
Filed: 1979-07-23
Granted: 1982-07-20
Abstract: IMPROVED EMBOSSED TEXTILE AND     METHOD OF MANUFACTURE                             ABSTRACT           An improvement in the embossing of a thermo-plastic textile, in particular the topsheet of an absorbent structure such as a diaper, which improves the high load caliper of the textile.  The knobs and depressions of the mated embossing rolls used to emboss the textile have side walls which define a small angle with respect to a radius of the embossing roll.  The preferred embossing knobs and depressions each define a frustum with a rhombic base and land, with the longer diagonal of the rhombus aligned in the machine direction of the embossing roll.  The resulting embossed textile has stronger bosses, and thus maintains a greater caliper under load, than is observed in the prior art embossed textile.
Patent CA-1156819-A (CA)
Inventor: GODBE JAMES R
IPC: B25B27/02
Filed: 1979-07-31
Granted: 1983-11-15
Abstract: ABSTRACT OF THE DISCLOSURE           A boiler tube crimping tool and method of use for breaking the seal between a boiler tube and tube sheet to facili-tate the pulling of the boiler tube from the tube sheet.  The preferred method includes cutting the boiler tube, then crimping the remaining tube stub, followed by pushing the tube stub from the tube sheet.
Patent CA-1117876-A (CA)
Inventor: LAGERKVIST CONNY B
IPC: F42B3/24
Filed: 1979-09-17
Granted: 1982-02-09
Abstract: NITRO NOBEL AB, Gyttorp.                                       LAU 793 Tubular container for viscous, viscous-elastic, plastic products as well as for powder or granular products Abstract It has been found that fluid, semi-fluid, plastic products as well as powder or granular products packed in plastic tubes have caused great problems in tropical countries due to the change in temperature during day and night.  In some cases the products have expanded and burst open the closure of the plastic tube so that the contents ran out or, due to their constituents, the products have caused deterioration of the protective properties of the plastic tube.  By choosing a plastic tube or olefin plastic and sealing said plastic tube with closures of olefin plastic, as well as orientating the plastic molecules in the tube in both axial and radial direction, a plastic seal is obtained which is not affected by the products enclosed and which also stands expansion of the products without rupturing.   1.
Patent CA-1130830-A (CA)
Inventor: NORD KEITH W
IPC: B65G57/30
Filed: 1979-10-02
Granted: 1982-08-31
Abstract: CONVEYING AND STACKING MACHINE                 ABSTRACT OF THE DISCLOSURE           The drawings illustrate a conveying and stacking machine for handling basket trays and dollies.  This machine includes a dual-speed conveyor adapted to receive basket trays, a chute mounted at a predetermined converging angle above the entrance portion of the conveyor and adapted to receive dollies, an end portion pivotally connected to the downstream end of the chute for at times pivotting into close proximity to the conveyor, a magazine for storing two aligned stacks of dollies, a stacking mechanism for receiv-ing and stacking the trays in end-to-end stacks of a pre-determined number per stack and calling for a pair of dollies from the chute, if available, or otherwise from the magazine, the dollies thereupon receiving the respective stacks of basket trays and conveying the two assembled basket tray and dolly stacks at a decreased speed to the exit portion of the conveyor.
Patent CA-1142367-A (CA)
Inventor: ABISHEV DZHANTORE N
IPC: C22B1/02
Filed: 1979-10-30
Granted: 1983-03-08
Abstract: ABSTRACT OF THE DISCLOSURE     A method comprises heating the material to be treated without access of  air at 2 temperature of 700 to 800°C for a period of 1-2 hours, and then subjecting this material to subsequent magnetic separations.     It is advisable that the furnace walls surrounding the material under treatment be heated to a temperature which is 100°C to 200°C higher than the boiling temperature of the material volatile components Upon completion of the heating operation, the material being treated is cooled at a rate of 2 to 4 deg. per minute, whereafter iron  are removed therefrom by means of magnetic separation, the intensity of magnetic field  ranging from 1000 to 2000 oersted, and then copper sulphides are separated, with the field intensity rang-ing from 4500 to 6000 oersted.
Patent CA-1102731-A (CA)
Inventor: SCHREYER KENNETH D
IPC: B65G9/00
Filed: 1979-11-09
Granted: 1981-06-09
Abstract: ABSTRACT OF THE DISCLOSURE             A rolling trolley device adapted to ride upon opposite side flanges of a support beam; said trolley device comprising a generally v-shaped load supporting yoke bar of one-piece forma-tion carrying at the opposite legs thereof a pair of generally tubular-shaped trolley wheel support housings; wheel support members extending from said housings at opposite  sides of the legs of said bar; and support beam engaging wheels mounted upon said support members; said housings being keyed to said yoke bar legs in positionally adjustable relation thereon to adapt said device tooperate efficiently on a large variety of support beam sizes and flange width and slope configurations.  The trolley wheels are carried by said housing so as to rotate about axes which slope away from and into acute angle inter-sections with the planes of the trolley wheel contact/support surfaces; thereby directionally balancing out the thrust load and reaction load forces to provide an improved wheel tracking operation.
Patent CA-1140148-A (CA)
Inventor: WATANABE HARUO
IPC: C11B3/02
Filed: 1979-11-28
Granted: 1983-01-25
Abstract: ABSTRACT OF THE DISCLOSURE        A method of refining crude animal and vegetable oils and fats comprising treating said oils and fats with an alkaline solution, directly treating the resulting mixture with an acid solution, separating the insoluble matter from the mixture, and, if required, treating the mixture by con-ventional adsorption and steam distillation methods.  An al-ternative method includes a direct treatment of the mixture resulting from the second step by an adsorption method, and, if required, the resulting mixture is subjected to steam distil-lation.  The yield of treated oil is improved over standard methods and the flavour is also better.
Patent CA-1126609-A (CA)
Inventor: HARDWICK MICHAEL J
IPC: A24B15/16
Filed: 1979-12-11
Granted: 1982-06-29
Abstract: ABSTRACT OF THE DISCLOSURE          A process for making a tobacco substitute and a product of the method in which a felt web of viscous fibres is prepared having a three dimensional lay and in which the bulk density of the felt web is from 5 to 80 kg./cu.m with an areal density of between 0.15 and 1.0 kg./sq.m.  The felt web is then subjected to controlled pyrolysis until the organic residue contains at least 90% carbon by weight.  The felt web is subsequently loaded with smoking and combustion agents cut into strips which are sub-sequently individually wrapped in a tubular wrapper.
Patent CA-1151499-A (CA)
Inventor: HOWARD PETER B
IPC: C09D7/00
Filed: 1980-01-30
Granted: 1983-08-09
Abstract: ABSTRACT     AQUEOUS DISPERSIONS     Aqueous pastes have been prepared by dispersing dried particulate material in water in the presence of a dispersing agent.    A new process for the manufacture of aqueous pastes involves two-stage filtration in which a first stage filter cake is mixed with a dispersing agent in an amount sufficient to render the cake free-flowing which is then subjected to a second stage pressure filtration and the cake is then homogenised.    Preferably the cake is of titanium dioxide and the cake from the first filtration is mixed with the dispersing agent in a sand mill.  A membrane pressure filter is preferably used in the first and second filtration stages.          During homogenisation preferably a further amount of the dispersing agent is mixed with the filter cake.  Aqueous paste prepared by this new process can have solids contents in excess of 70% by weight.
Patent CA-1126590-A (CA)
Title: Stern drive gear box and clutching arrangement
Inventor: KASHMERICK GERALD E
IPC: B63H5/125
Filed: 1980-02-14
Granted: 1982-06-29
Abstract: ABSTRACT OF THE DISCLOSURE     Disclosed herein is a stern drive unit including a stationary housing adapted to be fixed relative to a boat hull and a movable housing mounted on the stationary housing for pivotal movement about a tilt axis which is substantially horizontal when the stationary housing is fixed to the boat hull.  The stern drive unit also includes a propulsion leg including a rotatably mounted propeller, an input shaft in the stationary housing transverse to the tilt axis, and an output shaft journaled in the movable housing and having an axis transverse to the tilt axis, generally intersecting the tilt axis, and connected to the propeller.  The stern drive unit also includes a reversing transmission connected to the input and output shafts for selectively controlling operation of the propeller, the reversing transmission including a transfer gear supported for rotation coaxially with the tilt axis, spaced bevel gears mounted for rotation coaxially with the transfer gear, a first clutch pack for selectively connecting and disconnecting the transfer gear to one of the bevel gears, and a second clutch pack for selectively connecting and disconnecting the transfer gear to the other of the bevel gears.  The stern drive unit further includes a first gear mounted on one of the input shaft and the output shaft in mesh with the transfer gear, and a second gear mounted on the other of the input shaft and the output shaft and in mesh with both of the spaced bevel gears.
Patent CA-1150061-A (CA)
Inventor: KUNDA WASYL
IPC: B22F9/20
Filed: 1980-05-30
Granted: 1983-07-19
Abstract: A B S T R A C T     A process for the production of elemental silver from silver chloride or silver sulphate includes mixing the silver salt with sodium carbonate, and heating the mixture at a temperature in the range of from about 500°C to about 650°C to produce elemental silver powder.
Patent CA-1142328-A (CA)
Inventor: KOBAYASHI KAZUO
IPC: C01B7/03
Filed: 1980-06-30
Granted: 1983-03-08
Abstract: Abstract of the Disclosure An improved apparatus for producing potassium sulfate and hydrogen chloride gas from potassium hydrogen sulfate and potassium chloride is provided, which comprises a horizontal type muffle furnace having an arcuate upper wall, at least one shaft of agitator, a means for feeding raw materials, and a means for discharging the reaction product, to discharge the product by overflow; and an outer casing for said muffle furnace in which said furnace is accomodated on a bed of an insulating material and a space over said furnace, as a passage for heating gas.          A heating gas introduced into said space over said furnace supplies the heat quantity required for the total reaction, through the upper wall of the furnace to raw materials.          According to this apparatus, the life of furnace for continuous operation can be prolonged.