baber/WOPTO huggingface dataset:
Patent CA-1068398-A (CA)
Inventor: MCGINNIS BERNARD W
IPC: G11B5/60
Filed: 1975-05-23
Granted: 1979-12-18
Abstract: BISTABLE DEFLECTION SEPARATION OF FLEXIBLE DISKS               Abstract of the Disclosure Multiple (e.g. 500) ultra-thin flexible storage disks are stacked in a closely spaced configuration between circular end plates and arranged for rotation together with the plates about a common axis.  Record-ing surfaces of the rotating disks are deflected to successively expand (open) and contract (close) a selected interface and thereby provide recording access at the expanded interface.  Separation of the selected interfacing surfaces for access is facilitated by maintaining a predetermined air pressure between the contracted disks which conditions the rotation of the disks to bistability in the contracted position.  Thus only a small initiat-ing force is required to expand any selected interface with the disks initial-ly contracted.  This reduces disk wear.  Expansion of a selected interface is accelerated (for shortening access time) by applying vacuum to the disks in synchronism with the initiating force.  Advantageously recording surfaces on both sides of the expanded interface rotate in generally flat planar paths, simplifying track location when both surfaces are subject to record-ing usage.
Patent CA-1036678-A (CA)
Inventor: TOMLINSON JOHN H
IPC: H03G3/02
Filed: 1975-06-27
Granted: 1978-08-15
Abstract: ELECTRICAL DIGITAL FADE IN AND FADE OUT CIRCUIT              ABSTRACT OF THE DISCLOSURE    An analog signal amplifier is connected in series in a control signal path of a control system.  The feedback resistance which controls the gain of the amplifier is regulated in a digital manner and in response thereto the output of the amplifier is varied in a plurality of discrete steps in order to fade in or fade out the control signal.  The control for the feedback resistance utilizes a quad analog switch which responds to the output from a digital counter.  The circuit is applicable to aircraft control systems to provide smooth transitions during the switching of signal gain paths.
Patent CA-1030538-A (CA)
Title: Derive de la n-(trimethoxy-3,4,5 cynnamoyl) piperazine, ses sels d'addition d'acides, son procede de preparation et son application en therapeutique
Inventor: TURIN MICHEL
IPC: C07D/
Filed: 1975-07-16
Granted: 1978-05-02
Abstract: PRECIS DE LA DIVULGATION:               . La présente invention se rapporte à un procédé de pré-paration d'un nouveau dérivé de la N-(triméthoxy-3,4,5 cinnamoyl) pipérazine de formule (I) :                                          (I) et ses sels d'addition avec les acides pharmaceutiquement accep-tables, caractérisé en ce que l'on condense la N-(triméthoxy-3,4,5 cinnamoyl) pipérazine de formule (II) :         (II) avec le N-(pyrrolidinone-2) chloracétamide de iormule (III) :                                   (III) en milieu acétate d'éthyle, à reflux, et en présence de carbonate de sodlum, puis le cas échéant, salifie la base ainsi obtenue en milieu acétonique à l'aide d'un acide pharmaceutiquement acceptable.  Le nouveau dérivé ainsi obtenu est utilisé es thé-rapeutique humaine et, plus particulièrement  dans le traitement des issuffisances circulatoires périphériques et coronaires et de l'hypertension.
Patent CA-1045063-A (CA)
Title: Rivet panel (bellow) for easy-o end rivet structure
Inventor: PATEL ANILKUMAR U
IPC: B65D17/34
Filed: 1975-08-18
Granted: 1978-12-26
Abstract: ABSTRACT OF THE DISCLOSURE           An improved pull tab mounting arrangement provides an movable fulcrum to facilitate opening a self-opening can. An expandable pleat is formed in the end panel at the base of the tab-attaching rivet and the tab is mounted with its nose portion in spaced relation above and radially inward of the opening score line.  As the finger ring portion of the tab is lifted, the pleat unfolds, allowing both the rivet and the tab to travel upwardly and outwardly to bring the tab nose into contact with the score line.  This displacement moves the fulcrum point of the tab toward the nose portion and away from the finger ring portion, thereby providing increased leverage and reducing the effort required to fracture the score line.  In addition, the stress placed on the tab and the end panel during opening is reduced, thereby permitting the use of thinner gauge metal for these members.  Further, spacing of the nose portion and the score line reduces the probability that mishandling of the container will result in an unintentional fracture of the score.
Patent CA-1040670-A (CA)
Inventor: TAYLOR THOMAS N
IPC: B65H9/00
Filed: 1975-08-18
Granted: 1978-10-17
Abstract: SHEET FEEDING APPARATUS               ABSTRACT OF THE DISCLOSURE           Sheet feeding apparatuses and reproducing machines employing such apparatuses are provided including one or more of the following embodiments.  In accordance with one embodiment a stop means is provided for intercepting an edge of the sheet to allow a buckle to form in the sheet.  Chute means are pro-vided for guiding the sheet during the buckling, The chute means is movably mounted and connected to the stop means so that it moves in the sheet feeding direction as the stop means moves out of sheet blocking relationship.  In another embodiment the apparatus includes a buckle assisting means for flattening the buckle comprising a plurality of members biased against the buckle which are spaced apart along the transverse width of the sheet. In another embodiment two sheet feeding means are employed which feed sheets to the same stop means and a buckle assisting means is provided for flattening a buckle formed in a sheet fed from either sheet feeding means. In another embodi-ment the buckle assisting means comprises a flexible member which is slack for guiding the sheet during buckle formation and which is pulled taut to assist in flattening the buckle.
Patent CA-1038574-A (CA)
Inventor: SHUMAN JACK N
IPC: B29C51/26
Filed: 1975-09-25
Granted: 1978-09-19
Abstract: Abstract of the Disclosure A table for use in plastic forming machines, the table including a plurality of upstanding tubular support members arranged in a predetermined pattern, a plurality of alternately usable platform members, each such platform member being of a different size to support different vacuum molds and each being mountable on selected ones of the upstanding tubular supports.          A plastic material clamping frame having readily adjustable side elements for varying the size of the clamping frame is arranged to be selectively positionable, at all variable sizes thereof, between selected tubular support members to thereby hold the edges of a sheet of plastic material along and beneath the edges of different vacuum forming molds mounted on a platform member supported by the tubular support members.
Patent CA-1039896-A (CA)
Inventor: KOSTER JOHAN B
IPC: C07F7/18
Filed: 1975-11-12
Granted: 1978-10-03
Abstract: Abstract of the Disclosure This invention relates to a process for the making of cold-hardening foams containing urethane groups by in-mold foaming.  The need to use a relatively large number of additives like emulsifiers, stabilizers and activators can be eliminated by using certain silicon compounds of a specific formula.  Foamable reaction mixtures using these compounds with polyethers, polyisocyanates, water and/or organic blowing agents, and catalysts will produce foams with prop-erties acceptable for use in upholstery, cars, and furniture.
Patent CA-1051930-A (CA)
Title: Produits refractaires isolants a porosite elevee et leur mode de preparation
Inventor: CARBONNEL HENRI
IPC: F16L59/00
Filed: 1976-01-13
Granted: 1979-04-03
Abstract: Produits réfractaires présentant une résistance remarquable aux chocs thermiques comportant 60 % du poids total de fibres de céramique, dispersées dans 40 % du poids total de ciment, obtenus par chauffage lent jusqu'à 800.degree.C après la prise et le démoulage. Une liaison chimique s'établit dans ces conditions entre la fibre et l'aluminate de calcium du ciment. Application à la construction de pièces restant en contact avec des métaux fondus réactifs.
Patent CA-1077935-A (CA)
Inventor: FINDEISEN KURT
IPC: C07D235/02
Filed: 1976-02-10
Granted: 1980-05-20
Abstract: Abstract of the Disclosure The present invention relates to a new organic heterocyclic isocyanate which is the reaction product of an organic diisocyanate and an amino or hydroxy nitrile.          The invention also relates to a process of producing such isocyanates by reacting an excess of the diisocyanate with the nitrile under conditions under which the nitrile will not decompose and then maintaining the reaction mix-ture at an elevated temperature until the isocyanate nitrile adduct cyclizes.  The reaction may be carried out in the presence of a catalyst for isocyanate addition reactions.    Additionally, the invention relates to a process for the production of polyurethane by the reaction of the hetero-cyclic isocyanates with compounds carrying at least two isocyanate reactive hydrogen atoms per molecule.
Patent CA-1040362-A (CA)
Inventor: RUNIONS SINVILLE
IPC: A43D25/047
Filed: 1976-02-11
Granted: 1978-10-17
Abstract: LASTING MACHINE HAVING FLEXIBLE LASTING STRAP        ABSTRACT OF THE DISCLOSURE A lasting machine for operating on a shoe assembly formed of a last hav-ing an upper mounted thereon and an insole located on its bottom by wiping the side portions of the margin of an upper against the corresponding portions of an insole.  The wiping is performed by flexible lasting straps having rigid top segments which are moved from a position wherein the top segments are folded part way towards the insole to positions wherein the top segments press the upper margin against the insole to wipe the upper margin against the in-sole and bond the wiped margin to the insole by means of cement.  The machine has nozzles that travel along the corners between the upper margin and the insole periphery, while the top segments are folded part way towards the insole, and apply the cement into the corners during this travel.  The shoe assembly is supported bottom-up on a support that applies a yieldable upwardly directed force to the shoe assembly.
Patent CA-1073249-A (CA)
Inventor: FORBES JONES ROBIN M
IPC: C22C38/54
Filed: 1976-04-12
Granted: 1980-03-11
Abstract: Abstract of the Disclosure A highly-castable, ductile, corrosion-resistant and weldable stainless steel intended for exposure in marine environments.  A highly satisfactory composition of the alloy is, by weight, 24% Ni, 24% Cr, 4% Mo, 2% Si, 0.2% B and balance Iron.
Patent CA-1041421-A (CA)
Inventor: OBERLEY WILLIAM J
IPC: C09D5/14
Filed: 1976-04-15
Granted: 1978-10-31
Abstract: Abstract of the Disclosure Chromated copper arsentate wood preserving solutions in which the ratio of hexavalent chromium to trivalent chromium in the solution is between about 4.0:1.0 to about 1.0:1.0 give improved penetration into the wood, better reten-tion of preservative in the wood, and improved stability of the treating solu-tion.  The solutions contain an acid to maintain the required pH, prevent corrosion, and further improve t?  solution stability.
Patent CA-1050667-A (CA)
Inventor: INAYOSHI KATSUYUKI
IPC: H01L21/00
Filed: 1976-04-29
Granted: 1979-03-13
Abstract: ABSTRACT OF THE DISCLOSURE A method of manufacturing semiconductor devices comprising (a) form-ing a base region on a semiconductor substrate surface (b) forming an emitter electrode window and a base electrode on an insulating film covering the semi-conductor substrate surface (c) forming a polycrystal semiconductor layer over the entire area of said insulating film including said windows (d)  form-ing an emitter region by introducing impurity into the substrate through said polycrystal semiconductor layer (e) forming an electrode metal layer over the entire part of said polycrystal semiconductor layer, and (f)  leaving said electrode metal layer and polycrystal semiconductor layer in the form of wiring.
Patent CA-1052344-A (CA)
Inventor: DEMING KENNETH R
IPC: G06M1/34
Filed: 1976-06-28
Granted: 1979-04-10
Abstract: RESET ODOMETER MECHANISM     Abstract of the Disclosure An improved "reset" type odometer assembly having counting wheels rotatably supported on a shaft and inter-connected by pinion gears therebetween for sequential counting as mileage progresses.  A gear wheel between each of the counting wheels is engaged on its right side by a pinion gear which moves with each revolution of the counting wheel located to its right.  In turn the gear wheel engages an outer pawl on a molded ratchet spring to cause corresponding rotation of the leftwardly positioned counting wheel.  The ratchet spring also has an inner pawl which is engaged by a groove in the shaft when rotated to cause the ratchet spring and counting wheel to rotate during a reset mode of operation.  During resetting, the gear wheel and pinion gears are stationary and the outer pawl moves between circumferentially spaced detents in the gear wheel.  The ratchet spring itself is formed with inner and outer hoop portions and is of a relatively flexible plastic material to permit movement between the hoop portions and the two pawls.
Patent CA-1066604-A (CA)
Inventor: LANCASTER PATRICK R III
IPC: B65B53/00
Filed: 1976-07-05
Granted: 1979-11-20
Abstract: ABSTRACT OF THE DISCLOSURE     An apparatus and process for wrapping loads into wrapped packages employ a pusher conveyor for feeding the loads to a film dispensing apparatus comprising a frame, a ring member rotatably mounted on the frame and a brake member mounted on the ring member.  A load support rail is aligned with the conveyor to receive the loads.  A film material handling assembly adjacent the dispenser apparatus has two clamps, one of which alternately holds the leading edge of stretchable film material carried by the ring member in a fixed position while the other holds the trailing edge of the stretchable film material forming a package wrap.  The material handling assembly also includes a cutting bar positioned between the two clamps for severing the web of the last wrap of the material around the load.  A drive wheel engages the ring member to alternately rotate the ring member in alternate opposite directions so that it dispenses the material around the guide rail, the material handling assembly, and the load currently being carried by the guide rail, with the brake member stretching the material as it is being placed around the load.
Patent CA-1092303-A (CA)
Inventor: MACGREGOR DAVID C
Filed: 1976-08-13
Granted: 1980-12-30
Abstract: ABSTRACT OF THE DISCLOSURE       A novel vascular graft comprises a flexible elongate tube of polymeric material having an internal porous surface and a network of interconnected interstitial pores below the surface in fluid flow communication with the surface pores.  Tissue forms a smooth thin adherent coating of self-determining thickness on the porous surface making it resistant to the formation of the blood clots normally associated with the presence of foreign bodies in the blood-stream.
Patent CA-1051814-A (CA)
Inventor: HETMAN THOMAS JR
IPC: C03B27/052
Filed: 1976-10-08
Granted: 1979-04-03
Abstract: ABSTRACT OF THE DISCLOSURE           A sheet handling apparatus including means in the form of support feet for "catching" or receiving the bottom edge of a vertically descending sheet upon the release of the upper por-tion of the glass from gripping tongs which initially support the sheet in a vertical plane.  The bottom edge of the sheet engages the support feet substantially simultaneously with the release of the tongs to effect a smooth transition without interruption during continuous downward movement of the sheet.
Patent CA-1067605-A (CA)
Title: Programmable electronic tracking control for vehicles with hydrostatic transmissions
Inventor: JACKOVICH MELVIN C
IPC: F16H61/46
Filed: 1976-10-22
Granted: 1979-12-04
Abstract: ABSTRACT OF THE DISCLOSURE In a vehicle wherein power is applied to each track or wheel through a hydrostatic transmission and control system including: a displacement control unit for regulating each transmission; a steering control valve associated with each displacement control unit for modifying the operation of the dis-placement control unit; and a speed and direction control unit for applying hydraulic pressure to each of the displacement control units for controlling the basic direction and speed of the vehicle; wherein the maintenance of the desired direction of operation of the vehicle is enhanced by an electronic tracking control circuit that includes: means for measuring the actual speed of each track; a phase comparator for providing a signal indicating the dif-ference in track speeds; an integrator for providing a signal proportional to the difference in speed as measured over time; and comparator circuits re-sponsive to the integrator for triggering a solenoid control valve connected between the appropriate steering control valve and displacement control unit to open, thereby reducing the speed of the faster moving track in order to maintain the desired direction of operation.  Either a straight line or curved path of operation for the vehicle can be selected by adjusting bias voltages applied to the integrator.  Additional circuitry is provided to deactivate the electronic tracking control when either of the steering control valves is ac-tuated.
Patent CA-1044870-A (CA)
Inventor: PRICE REGINALD S
IPC: F16B15/00
Filed: 1977-05-05
Granted: 1978-12-26
Abstract: "SUSPENSION ASSEMBLY FOR PARTITION PANEL"                ABSTRACT OF THE DISCLOSURE              A suspension assembly for suspending a gypsum board panel from a channel member of a support structure comprises a plate having a plurality of panel-piercing members extending from one face.  The plate has upper and lower portions with a transverse line of weakness extending across the plate adjacent the upper end of the lower portion.          A separate suspension clip is attached to the plate above the line of weakness, a lower portion of the clip situated below the level of the line of weakness being inclined outward-ly from the plane of the plate to form a cam surface which engages over a side leg of the channel member.  Under the applied loads, the clip causes the plate to bend about the line of weakness in a sense to incline the panel-piercing members of the lower plate portion in an upwards direction.          This inclination prevents the panel-piercing members from being drawn out of the panel during use.
Patent CA-1070649-A (CA)
Inventor: COLES ROBERT E
IPC: B65B9/20
Filed: 1977-05-13
Granted: 1980-01-29
Abstract: ABSTRACT OF THE INVENTION      This invention relates to the wrapping of a stack of articles, and more particularly to a process for wrapping a stack of dispensing cups, each containing a measured amount of material, to provide a pack having improved storage-life for the material therein.
Patent CA-1055839-A (CA)
Inventor: FRENCH GORDON B
IPC: E21B43/24
Filed: 1977-06-07
Granted: 1979-06-05
Abstract: BE IT KNOWN THAT GORDON B. FRENCH and RICHARD D. RIDLEY of,respectively: Route 8, Box 253, Bakersfield, California, U.S.A., and 2224 First Street, Grand Junction, Colorado 81501, U.S.A., having made an invention entitled:       METHOD OF ENHANCING RECOVERY OF OIL FROM PILLARS ADJACENT IN SITU OIL SHALE RETORT   the following disclosure contains a correct and full description of the invention and of the best mode known to the inventor(s) of taking advantage of the same.            Abstract of the Disclosure An underground in situ oil shale retort contains a bed of fragmented oil shale particles having an appreciable void volume distributed therethrough.   Air or other retorting gas passed through this bed of fragmented oil shale supports combustion of some of the carbonaceous material in the oil shale and provides heat for retorting oil therefrom.   A number of such retorts may be formed in an area and pillars are left to support the overburden.   Pillars forming walls between adjacent retorts also prevent gas leakage.          Oil recovery from intact oil shale pillars between retorts is enhanced by fracturing the pillars as well as fragmenting the shale in the retort.   The pillars are fractured by detonating explosives in bore holes in the region between the retort and pillars, preferably a fraction of a second after explosive fragmentation of the oil shale in the retort.   1.
Patent CA-1106361-A (CA)
Inventor: ATHERTON FRANK R
IPC: C07F9/572
Filed: 1977-07-07
Granted: 1981-08-04
Abstract: ABSTRACT        A process for the manufacture of peptide derivatives of the general formula                (I) , wherein R1, R2 and R3 each represent the characterising group of an .alpha.-amino acid of the type normally found in proteins; R4 represents a hydroxy or methyl group; n stands for zero, 1, 2 or 3; the configuration at the carbon atoms designated as (a), (b) and (c) is L (when R1 or R2  ? H); and the configuration at the carbon atom designated as (d) is (R)  (when R3  ? H), and of pharmaceutically acceptable salts thereof, which process comprises condensing a compound of the general formula                      (II) , wherein R10, R20 and R30 have any of the values accorded to R1, R2 and R3 above respec-tively except that any amino group(s) present is (are) protected by a hydrogenolytically cleavable protecting group, R4 and n have the significances given above and the configuration at the carbon atoms designated as (b), (c) and (d) is as spedified above, with a compound of the general formula                     (III) , wherein R5 represents a 2,4,5-trichloro-phenyl, pentachlorophenyl or succinimido group, R6 represents a hydrogen atom or an aralkoxycarbonyl group and the coniiguration at the carbon atom designated as (a) is L, subjecting a condensation product obtained which contains a protected amino group and/or an aralkoxycarbonyl group R6 to hydrogenoiysis and, if desired, converting a compound of formula I obtained into a pharmaceutically acceptable salt.
Patent CA-1075789-A (CA)
Inventor: BALL DAVID J
IPC: H01R13/187
Filed: 1977-07-08
Granted: 1980-04-15
Abstract: ABSTRACT OF THE DISCLOSURE An improved electrical connector having a mating plug and receptacle is disclosed, the plug and receptacle each being of the type in which a dielectric insert positioned within an outer metal shell carries electrical contacts disposed in a predetermined configuration. The problem encountered by prior connectors of holding the insert securely against axial displacement is solved by providing a compressible ring having an external thread of one configuration and providing an internal thread of a second different configur-ation on the shell. The ring can be forced axially into an annular space defined between the insert and the internal threads of the shell and hard up against a thrust shoulder of the ring. The external and internal threads become pressure interlocked at angularly spaced intersections of the external and internal threads.
Patent CA-1159468-A (CA)
Inventor: SCOTT RICHARD M
IPC: A01N39/02
Filed: 1977-07-13
Granted: 1983-12-27
Abstract: A B S T R A C T      Stereo-specific isomers of phenoxy-alkanoic acid derivatives, especially phenoxy-propionic acid derivatives, can be prepared by re-acting a substituted phenol, e.g., 4-chloro-2-methyl phenol or 2,4-dichlorophenol with a lactic acid derivative of formula:                  wherein X-O- is a leaving group, e.g., methane sulphonyl; R2 = 1-4 C alkyl; and R1 = H, metal ion, alkyl or (substituted) ammonium and x denotes the absolute configuration of the lactic acid derivative concerned, at elevated temperature with a base. The R-(+)-isomers exhibit selective activity against broad-leaved weeds.