baber/WOPTO huggingface dataset:
Patent CA-1112431-A (CA)
Title: Method and apparatus for the continuous production of  optical fibres
Inventor: COCITO GIUSEPPE
IPC: C03B37/014
Filed: 1978-11-20
Granted: 1981-11-17
Abstract: ABSTRACT OF THE DISCLOSURE         A continuous optical fibre for telecommunications is made with a refractive index which can be graded radially and/or lengthwise by continuously and repeatedly depositing vitreous or vitrifiable raw material onto the end of a rod, doping the mate-rial in a desired pattern by ion implantation such as to fuse the material at least partially, fusion being optionally completed by electron beam bombardment, and advancing the rod as it is built up into a zone in which it is drawn into a continuous fibre, the rod being optionally subjected to further treatments as it is advanced.
Patent CA-1089347-A (CA)
Inventor: PIETSCH HELGE
IPC: B60N2/90
Filed: 1978-11-28
Granted: 1980-11-11
Abstract: "VEHICLE SEAT"                ABSTRACT OF THE DISCLOSURE     A spring loaded vehicle seat is of the kind having a seat frame and an underframe supports this seat frame by levers and a pneumatic spring so that the seat is maintained at a constant height. Valves control the flow of air to and from the spring to counteract the effect of vibrations.  A switch mechanism controls the operation of the valves and a coupling device transmits vibrations of the seat to the mechanism.  The coupling device is arranged so that movement of the mechanism after opening a valve lags behind the vibration of the seat.
Patent CA-1095078-A (CA)
Inventor: ERPENBACH HEINZ
IPC: B01J31/00
Filed: 1978-12-06
Granted: 1981-02-03
Abstract: ABSTRACT OF THE DISCLOSURE           Acetic acid and acetic anhydride are produced continuously from acetaldehyde which is reacted by oxidizing it with gaseous oxygen in liquid phase in the presence of copper acylate and cobalt acylate as a catalyst and in the pre-sence of an aliphatic carboxylic acid ester as a diluent. More specifically, the reaction is effected at temperatures of 62 to 90°C over a period of less than 20 minutes with the use of the diluent and acetaldehyde in a quantitative ratio of 60:40 to 40:60; the resulting reaction products are delivered to a distilling zone in which the carboxy-lic acid ester and water are distilled off overhead and separated into two phases.  Next, the organic phase is re-cycled with a reflux ratio of at least 1:1 to the distil-ling zone; base product accumulating in the distilling zone is delivered to an evaporating zone in which 2 to 12 parts by weight of an acetic acid/acetic anhydride-mixture as distillate are produced per part by weight of catalyst solution as base product.
Patent CA-1117019-A (CA)
Title: Composition cosmetique pour le renforcement des  ongles mous ou cassants
Inventor: BOUILLON CLAUDE
IPC: A61K8/365
Filed: 1978-12-15
Granted: 1982-01-26
Abstract: La présente invention a pour objet une composition cosmétique pour le renforcement des ongles. Elle contient en solution aqueuse, alcoolique ou hydroalcoolique de la triméthylolmélamine, au moins une résine cosmétique noncationique et/ou au moins une résine cosmétique cationique, au moins un agent plastifiant et un acide minéral ou organique.
Patent CA-1112349-A (CA)
Inventor: KIRBY ROBERT A
IPC: G01V1/104
Filed: 1979-03-13
Granted: 1981-11-10
Abstract: ABSTRACT OF THE DISCLOSURE An open-ended seismic source for use in a liquid medium such as water is disclosed.  The source includes a source of explosive gas, a firing chamber connected to the source, a capacitor discharge ignition system connected to the firing chamber for igniting the gas in the firing chamber, a barrel connected to the firing chamber, defining an explosion chamber and having an outlet at its lower end, a plurality of baffle plates fixed in the barrel near the outlet for permitting the exploded gas to enter the medium and for retarding the entry of the medium into the barrel, and a reaction plate attached to the barrel and disposed below the outlet so that the exploded gas entering the medium impinges on the plate and the recoil of the barrel is reduced.
Patent CA-1119963-A (CA)
Inventor: FUJII MICHINOBU
IPC: F01D5/22
Filed: 1979-03-23
Granted: 1982-03-16
Abstract: ABSTRACT OF THE DISCLOSURE   A coupling device of moving blades of a steam turbine comprises a pair of projections provided on the inner and outer surfaces of the adjacent moving blades.  One of the projections is provided with a hemispherical recess which loosely and slidably receives a corresponding hemispherical boss provided on the other projection when the moving blades are assembled.  Thus, the loose and slidable engagement of the hemispherical boss and recess makes it possible to effectively absorb a force causing the turbine blades to vibrate.
Patent CA-1088439-A (CA)
Inventor: BIRD JOHN M
IPC: B65D85/84
Filed: 1979-04-11
Granted: 1980-10-28
Abstract: ABSTRACT OF THE DISCLOSURE           Containers composed of nickel-iron alloys such as those natural minerals produced under thermodynamically stable conditions within serpentinite-type rocks and possessing a composition in the range exhibited by the minerals awaruite and josephinite.  Radioactive nuclear waste can be contained over extended periods of time by encapsulating the waste materials in containers composed of these alloys and burying the containers underground in an impervious, stable rock formation.
Patent CA-1121412-A (CA)
Inventor: CASSIDY ROBERT E
IPC: H01H61/00
Filed: 1979-05-04
Granted: 1982-04-06
Abstract: IMPROVED CIRCUIT BREAKER WITH PARALLEL SHORTING ELEMENT                ABSTRACT      A circuit breaker has a thermally sensitive bimetal connected across two lead-in wires in a glass envelope.  An electrically con-ductive bypass element is in parallel with the bimetal and shorts it out.  The bypass element can be removed from the circuit by melting it by means of a short duration pulse of high electric current.  The bimetal contains means to prevent its ends from welding together should an arc occur when the bypass element is melted.
Patent CA-1111255-A (CA)
Inventor: PHILLIPS EDWARD H
IPC: B24D9/02
Filed: 1979-06-07
Granted: 1981-10-27
Abstract: DRUM FOR SANDING BELT       ABSTRACT OF THE DISCLOSURE    A drum adapted to be coupled to the chuck of a hand drill for mounting a sanding belt for rotation. The drum is of one-piece construction and has a cen-tral, imperforate web integral with flexible flanges on the outer periphery of the web.  The web and flanges are formed from a resilient material, to that the web can expand or stretch and the flanges can flex under centrifugal force to increase the frictional engagement between the web and flanges and the inner surface of a sanding belt on the drum.   In one form of the drum, the flanges have a pair of continuous ribs at respective side extremities thereof.  This drum is adapted for use with a cylindrical sanding belt having a pair of axially spaced annular shoulders on the inner surface thereof, the ribs being adapted to engage the shoulders to prevent axial movement of the belt on the drum.  Another embodiment of the drum is free of such ribs and is adapted to be used with a sanding belt which may have abrasive on both the inner and outer surfaces thereof.
Patent CA-1115920-A (CA)
Title: Methode de construction d'un campement provisoire
Inventor: KOVACS JOZSEF M AVENUE KENSING
IPC: E04B1/343
Filed: 1979-06-08
Granted: 1982-01-12
Abstract: L'invention a pour objet une méthode de construction d'un campement provisoire sur des lieux choisis par simple et rapide assemblage d'un ensemble d'élément modulaires facilement transportables comprenant un nombre pair de modules de base ayant chacun une entrée à une extrémité, au moins un module de plancher, et deux modules formant vestibule et ayant sensiblement la même largeur que chaque module de plancher. Selon cette méthode, on dispose tout d'abord les modules de base face à face et côte à côte sur les lieux choisis de façon à for-mer un corridor. On dispose ensuite chaque module de plancher entre les modules de base de façon à réunir ces dernier à la base et on dispose les deux modules formant vestibule aux extrémités du corridor formé de façon à fermer celui-ci. On réunit ensuite les modules de base adjacents d'un même côté du corridor à l'ai-de d'une bande mince de matériau souple et étanche fixable de façon réversible et rapide sur les parois avant, de dessus et arrière de chaque module de base. On forme alors un double toit étanche sur toute la longueur du corridor en fixant de façon réversible et rapide une première bande large de matériau souple ayant sensiblement la largeur du corridor au dessus de ce dernier entre les extrémités supérieures des parois avant des modules de base, et une seconde bande large de matériau souple et étanche ayant une largeur supérieure à celle du corridor, au dessus de la première bande entre les parois de dessus des modules de base. On réunit enfin les modules formant vestibule aux modules de base et au double toit étanche aux extrémités du corridor de la même façon que l'on réunit chaque paire de modules de base adjacent entre eux. Le principal avantage de cette méthode réside dans la façon d'attacher les modules entre eux à l'aide de bandes de matériau souples et étanches fixables aux modules avec, par exemple des agraffes et des lacets. Ceci permet en effet l'installation rapide et à faibles coûts de locaux d'habitation sécuritaires, confortables et hygiéniques qui peuvent être utilisés dès le premier jour de leur arrivée sur les lieux et être facilement récupérés en vue d'une réutilisation ultérieure. L'invention a également pour objet le campement provisoire obtenu selon cette méthode.
Patent CA-1110536-A (CA)
Inventor: STIKELEATHER ALLAN
IPC: B23D19/04
Filed: 1979-06-12
Granted: 1981-10-13
Abstract: S P E C I F I C A T I O N      METHOD AND APPARATUS FOR SIMULTANEOUSLY ROLLING          AND SLITTING METAL STRIP            INVENTOR:  ALLAN STIKELEATHER               ABSTRACT OF THE DISCLOSURE           Metal strip is slit by passage between a pair of rollers which are flanged and mate together in close tolerance interfitting relationship to completely contain and confine the strip cross section.  The rollers com-pressively work the full width of the strip, thereby significantly reducing its thickness.  The working portions of each of the rolls have at least two neighboring roll surfaces which are offset in a direction radially with respect to their axes of rotation, i.e. in a "stepped" relationship, the amount of offset being sufficiently great for simultaneously separating the strip into at least two resultant substrips while the thickness of the substrips is being significantly reduced.  Both edges of each of the resultant substrips have an attractively polished appearance without sharpness or burr, and the substrips are produced without camber.
Patent CA-1080760-A (CA)
Inventor: CHABOT JEAN-MARIE
IPC: A63C13/00
Filed: 1979-06-18
Granted: 1980-07-01
Abstract: ABSTRACT OF THE DISCLOSURE:           A snowshoe comprising a central, forwardly located opening for receiving the front of a wearer's foot, and at least one attachment slot located at the rear of the opening for receiving therein and detachably securing attachment means pro-vided on a harness. The central opening has two side ribs and at least one slot is formed by a first, straight rib extending across the snowshoe and joined to the side ribs of the central opening, and a second rib spaced a short distance rearwardly from the first rib and extending paralle to it. The attachment means comprise at least one tab extending down from the harness and being inserted through the one slot.
Patent CA-1131254-A (CA)
Title: Process for the preparation of dicyclopentylene  (2,2'-bis(4-alkyl-6-t-butylphenols)
Inventor: MUELLER ROLF
IPC: C07C37/14
Filed: 1979-07-11
Granted: 1982-09-07
Abstract: ABSTRACT OF THE DISCLOSURE         A PROCESS FOR THE PREPARATION OF DICYCLOPENTYLENE  [2,2'-bis(4-ALKYL-6-t-BUTYLPHENOLS)] .   The invention concerns a-process for the preparation of dicyclopentylene [2,2'- bis(4-alkyl-6-t-butylphenols)] of the formula I                       (I) wherein R1 is tertiary butyl and R2 is methyl or ethyl, by the reaction of 1.5 to 2.5 moles of a 4-alkyl-6-t-butyl-phenol of the formula II       wherein R1 and R2 are as defined above, with 0.8 to 1.2 moles dicyclopentadiene at a temperature between 20 and 120° C in the presence of an organic solvent and borontrifluoride or a complex thereof as catalyst, characterised by employment of specially selected solvents and reaction under practically anhydrous conditions.
Patent CA-1133360-A (CA)
Title: Automatic sawmill apparatus
Inventor: JONES AARON U
IPC: B27B31/06
Filed: 1979-08-03
Granted: 1982-10-12
Abstract: AUTOMATIC SAWMILL APPARATUS                  Abstract A cant or plank is moved forwardly on a conveyor system, where its irregular leading lateral edge is measured by a plurality of fixed scanners.          In response to measurement of the cant, conveyor movement is altered for orienting the cant relative to a fixed saw line to be executed by a movable saw.  The cant is held or clamped in stationary position while the saw is moved on a carriage relative thereto, resulting in severing of the undesired irregular for-ward edge.  The sawn edge is employed as a reference as the cant is then moved forwardly on a conveyor system, where the measurements obtained from the scanners may be further utilized in cutting the cant into desired widths.
Patent CA-1136678-A (CA)
Inventor: SIMME STURE B R
IPC: B60J7/10
Filed: 1979-08-13
Granted: 1982-11-30
Abstract: ABSTRACT OF THE DISCLOSURE     A device for releasable attachment of a flexible cover to a flap or similar, preferably on a truck, trailer or similar.          In order to eliminate problems of complexity, expense and functioning associated with earlier designs the device, in addition to a slightly modified rigid member, con-sists of only two sections, preferably made of aluminum; a link section and a locking section, the former pivoted at its lower end to the rigid member and the latter pivoted at its lower end to the former, by which arrangement the locking section can fasten the cover against the rigid member.  Owing to the inherent resilience of the sections the pivot between the link section and the locking section may be snapped over a neutral line to bring about a secure locking of the device.
Patent CA-1133128-A (CA)
Inventor: GRAPES ROBERT D
IPC: G11B17/03
Filed: 1979-08-16
Granted: 1982-10-05
Abstract: DISK INDICATOR AND EJECTOR     ABSTRACT OF THE DISCLOSURE       A disk indicator and ejector for a disk drive mechanism including a base and a clamshell assembly mounted to the base to pivot between an open position for receiving a disk car-tridge, and a closed ]position for drivably engaging it.  The indicator and ejector includes a linking member mounted slide-ably with respect to the base.  A cartridge inserted into the mechanism contacts the linking member, moving it inwardly against the force of a tension spring.  Simultaneously, a latch rotatably mounted to the linking member contacts a latch block and is thereby rotated against a torsion spring.  As  the cartridge reaches its centered position, the linking member engages a pin mounted to the clamshell assembly, indicating complete insertion.  The clamshell assembly is then closed, moving the pin and linking member further inward and free of the cartridge, and setting the latch in a cocked position. To eject the cartridge, the clamshell is re-opened to move the pin and linking member outward, causing the latch to rotate from the cocked position and lift the linking member free of the pin.  The linking member, responsive to the tension spring, then ejects the cartridge.
Patent CA-1129917-A (CA)
Inventor: COYLE FORREST E
IPC: H01H1/40
Filed: 1979-08-20
Granted: 1982-08-17
Abstract: 47,811 ABSTRACT OF THE DISCLOSURE           A push-button assembly including a housing having an actuating plunger, a cover for the housing, and an elec-trical contact assembly mounted on the cover.  Assembly of the cover on the housing orients and operatively couples the actuating plunger with the electrical contact assembly.
Patent CA-1112717-A (CA)
Inventor: BEER LARRY D
IPC: H02P8/12
Filed: 1979-08-31
Granted: 1981-11-17
Abstract: ABSTRACT OF THE DISCLOSURE       Apparatus is disclosed for converting input step and direction commands from an external control source into stator winding drive current signals for a permanent magnet stepper motor. A translator circuit, having inputs coupled to the external control, generates sequential stator winding pulse enabling signals for transmission to a chopper-controlled power drive circuit.  The chopper control features the sharing of a single chopper power switch by pairs of stator windings.  The power drive circuit provides a winding current path to a reverse voltage supply upon initiation of winding current turn-off to enhance switching speed.  A dual level current reference is generated in a current regulator circuit and compared with instantaneous stator winding currents to control the conduction states of the chopper power switches.  Dual reference levels are established for idle versus accelerating or decelerating motor states, respectively.  The translator circuit includes means for inhibiting chopper power switch conduction independently of the current regulator reference level comparison whenever the translator is switching drive current among stator windings, thereby decreasing power dissipation due to transients.
Patent CA-1097062-A (CA)
Inventor: MIKHAIL RAOUF
IPC: A43B5/16
Filed: 1979-08-31
Granted: 1981-03-10
Abstract: ABSTRACT          A low cost, injection moulded plastics material skate boot, more particularly an ice skate boot, in which the upper shell is integrally moulded with the lower shell in such a way as to permit relative movement, at the ankle joint, between the upper and lower shells.  In an alternative embodiment a prefabricated blade assembly is also embedded in the boot sole during the moulding operation.
Patent CA-1108667-A (CA)
Inventor: SHAH ATUL
IPC: F16L33/22
Filed: 1979-09-07
Granted: 1981-09-08
Abstract: TITLE:     HOSE COUPLING JOINT INVENTOR: ATUL SHAH     ABSTRACT           A coupling joint for thermoplastic hose comprising a nipple having annular ribs of approximately the same diameter as the hose I.D., for easy insertion into the hose, and a nut of rigid material threaded over the hose O.D. and radially opposite the ribs.  The nut has a rounded tapered thread that deforms the hose material to fill the thread and to cause the I.D. of the hose to fill the spaces between-the annular ribs.  The nipple has a cylindrical portion at its end and the nut has a counterbore at its forward end and the hose is lightly gripped therebetween to avoid sudden stress concentration on the hose at the first rib.
Patent CA-1161605-A (CA)
Title: Composition de traitement des matieres fibreuses a  base de polymeres cationiques et anioniques
Inventor: VANLERBERGHE GUY
IPC: C11D3/37
Filed: 1979-09-13
Granted: 1984-02-07
Abstract: Composition à base de polymères destinée au traitement de matières fibreuses. Il s'agit d'une composition homogène aqueuse contenant au moins un polymère cationique, au moins un polymère anionique, au moins un sel de métal alcalin et au moins un agent de surface non-ionique ou contenant en plus des groupements non-ioniques un ou plusieurs groupements carboxyle ou carboxylate. Autres utilisations: shampooing, produit de coloration, lotion à rincer, à appliquer avant ou après le shampooing, avant ou après coloration ou décoloration, avant ou après permanente, lotion pour brushing, lotion restructurante.
Patent CA-1117412-A (CA)
Inventor: NELSON NORMAN A
IPC: E21B23/02
Filed: 1979-09-27
Granted: 1982-02-02
Abstract: WELL CASING HANGER ASSEMBLY                            Abstract A well casing hanger assembly for releasably connect-ing first and second well casings to and from each other in a well by longitudinal movement of the first member.  The first member includes an annular recess in its peripheral surface and a stop shoulder is positioned at each end of the recess and a resiliently expandable and contractible locking ring is positioned in the recess for engagement with a locking notch on the second member.  A protrusion is positioned in the recess and initially coacts with an opening in the locking ring.  An improved re-leasable holding means is provided for initially preventing the locking ring from moving axially on the first member until the locking ring expands and engages the second member.  The releasable holding means includes first and second tapered surfaces on the first member for engaging and restraining downward movement of the first member relative to the locking ring until the locking ring expands into the locking notch and thereafter act to posi-tively force the locking ring into the set position.  The locking ring may include coacting tapered surfaces for coacting with the first and second tapered surfaces and may include a C-shaped release ring positioned in the opening which includes a tapered surface coacting with the second tapered surface.
Patent CA-1152609-A (CA)
Inventor: ZIEHM RICHARD T
IPC: G03G15/00
Filed: 1979-10-16
Granted: 1983-08-23
Abstract: METHOD AND APPARATUS FOR CLEARING JAMS IN COPIERS     ABSTRACT OF THE DISCLOSURE         A method and apparatus for clearing jams in the transport path of a copier includes the steps of sensing a jam, clustering in-process sheets either at the jam location or at an area upstream of the jam location while simultaneously allowing sheets downstream from the jam location to continue out into a catch tray and removing the jam sheets after the last downstream sheet has exited the copier and the machine has stopped.
Patent CA-1086198-A (CA)
Inventor: PIERRE KENNETH J
IPC: C12Q1/25
Filed: 1979-10-17
Granted: 1980-09-23
Abstract: ABSTRACT OF THE DISCLOSURE     An inorganic phosphate assay comprising:   (a) performing coupled reactions, at a pH of from about 6 to about 8, which comprise:        (i) reacting maltose with an inorganic phosphate specimen in the presence of maltose phosphorylase to form glucose and .beta.-D-glucose-1-phosphate;        (ii) reacting .beta.-D-glucose-1-phosphate in the presence of .beta.-D-phosphoglucomutase to form glucose-6-phosphate: and (iii) reacting glucose-6-phosphate in the presence of glucose-6-phosphate dehydrogenase and a co-enzyme selected from a group consisting of .beta.-nicotinamide-adenine dinucleotide, .beta.-nicotinamide-adenine dinucleotide phosphate and mixtures thereof to form the reduced form of said co-enzyme and 6-phosphogluconate; and (b) measuring the production of said reduced co-enzyme, wherein the inorganic phosphate being measured is the limiting component and wherein a non-phosphate buffer is used to control said pH.
Patent CA-1137235-A (CA)
Inventor: GRIEPENTROG DAL F
IPC: H03J5/24
Filed: 1979-11-28
Granted: 1982-12-07
Abstract: RCA 73,411 Abstract A television tuning system for generating a tuning voltage for a varactor controlled local oscillator includes a continuous resistive element having first, second, third and fourth points along its resistive path which define first, second and third resistive sections corresponding, respectively, to the low VHF, high VHF and UHF tuning bands and a movable contact.  A position detecting arrangement determines the position of the movable contact along the path of the resistive element to determine which band is being tuned and in response selectively couples voltages corresponding to the magnitudes of the tuning voltage corresponding to the beginning and end points of the various bands to respective points along the resistive element.  As a result, with continuous motion of the movable contact a tuning voltage for each channel in the television range is developed at the movable contact.