baber/WOPTO huggingface dataset:
Patent CA-1062821-A (CA)
Inventor: MACKRILE SVATOPLUK
IPC: C02F1/52
Filed: 1975-04-28
Granted: 1979-09-18
Abstract: ABSTRACT OF THE DISCLOSURE :          A reactor for the purification, by fluid filtration of water introduced into the reactor via a first inlet conduit, the reactor comprising a vertically oriented tank, first par-tition means supported in an upper portion of the tank for de-fining a separating zone, second partition means supported in a lower portion of the tank beneath and in communication with the separating zone and including a pair of upwardly and in-wardly extending oblique walls, rotatable impeller means disposed between the oblique walls of the second partition means to define a homogenizing zone, means including an upper apertured wall of the second partition means for effecting communication of li-quid in the homogenizing zone with the separating zone, the portion of the tank extending outwardly of the first and second partition means defining a thickening zone, and third partition means extending into the thickening zone from an outer portion of the top of the first partition means.  The reactor is characte-rized by the fact that the first partition means includes a pair of downwardly and inwardly extending oblique walls terminating in contact with the upper end of the upwardly and inwardly exten-ding walls of the second partition means; the second partition means defining a closed chamber isolated from the remaining zones within the tank except through the upper apertured wall; and the reactor further comprising means for connecting the discharge end of the first inlet conduit to the interior of the closed chamber.
Patent CA-1043595-A (CA)
Inventor: FISCHER KENNETH J
IPC: A61C7/12
Filed: 1975-05-05
Granted: 1978-12-05
Abstract: PLASTIC ORTHODONTIC BRACKET           ABSTRACT OF THE DISCLOSURE           An all plastic orthodontic bracket is disclosed which is adapted to be attached directly to the labial surface of a tooth.  The bracket has a quasi triangular shaped body as viewed from the facial view to minimize forces being applied to the bracket during mastication and occlusion.          The apical section of the triangular shaped body is adapted to be attached to the incisal section of the tooth and the base of the triangular shaped body is adapted to be attached to the gingival section of the tooth.  All surfaces of the bracket body extending from a ligature undercut over the front surface of the bracket body are smooth and convex with the exception of those surfaces defined by an archwire slot and a second slot which is perpendicular to the archwire slot.          Smooth and convex bracket body surfaces substantially lessen plastic fatigue commonly found in prior art plastic ortho-dontic brackets having sharp corners.  The ligature undercut is of a depth which is substantially filled by a small gauge archwire or an elastic ring.  The relatively shallow depth of the ligature undercut insures that maximum bracket bulk is distributed between the archwire slot and the ligature undercut to lessen the tendency for bracket body fatigue between these points.
Patent CA-1118142-A (CA)
Inventor: GOODMAN DONALD
IPC: C08F6/00
Filed: 1975-06-23
Granted: 1982-02-09
Abstract: ABSTRACT     The invention relates to a process whereby vinyl chloride monomer (VCM) is removed from the wet cake produced during or after centrifuging or otherwise dewatering in the suspension process for producing poly (vinyl chloride) (PVC).  Steam is passed through the wet cake, thereby removing VCM from the resin.  As a result the PVC has less VCM associated therewith, for example, ten parts per million (weight/weight), or even as low as not to be detected by gas chromatography with a sensitivity of analyzing 0.1 ppm VCM. "Wet cake" is meant to include PVC homopolymers and copolymers containing from 1 to 50% (wt./wt.) of water and having particle sizes in the range of about 1 to 500 microns in diameter.  The preferred embodiment is in-process application of steam to the wet cake so that the VCM may be condensed, com-pressed, or otherwise captured.  Also included is the treatment of the resin after a drying step to obtain PVC of low VCM content.  Better VCM removal is obtained than with conventional methods where a slurry or latex of high VCM content is processed.
Patent CA-1058700-A (CA)
Title: Pile electrique comportant un indicateur visuel de son etat de charge
Inventor: DEPOIX PIERRE
IPC: H01M6/50
Filed: 1975-10-27
Granted: 1979-07-17
Abstract: PRECIS DE LA DIVULGATION:         L'invention concerne une pile électrique comportant une enveloppe extérieure présentant au moins une portion transparente à travers laquelle est visible un indicateur de décharge.  La pile inclue une électrode négative dont la matière active est à base de zinc divise et qui est située au contact de l'enveloppe au moins au voisinage d'une partie transparente de celle-ci, un électrolyte alcalin et une électrode positive.  La pile est carac-térisée par le fait que l'indicateur de décharge est constitué par une feuille perforée en un matériau choisi dans le groupe du cuivre et de ses alliages colorés, visible par la portion trans-parente et en contact avec la matière active négative imprégnée d'électrolyte, la position de la feuille dans la matière active négative étant choisie en fonction de l'état de décharge à repérer.
Patent CA-1047606-A (CA)
Inventor: EGGERMONT LUDWIG D J
IPC: H03M7/32
Filed: 1975-12-11
Granted: 1979-01-30
Abstract: ABSTRACT:            System comprising an integrating digital sig-nal processing device to which input signal samples x(nT) are supplied with a period T and which supplies output signal samples z(mrT) with a period rT. To this end in this integrating signal processing device con-secutive groups having a period rT and consisting of r successive consecutive signals samples are processed beforehand in a non-recursive digital filter for ge-nerating auxiliary signal samples y(mrT) which occur with a period rT, the last mentioned samples being integrated in an integrating network for generating the output signal samples z(mrT).
Patent CA-1046278-A (CA)
Inventor: LABATE MICHEAL D
IPC: C21C7/00
Filed: 1975-12-18
Granted: 1979-01-16
Abstract: ABSTRACT OF THE DISCLOSURE    A ladle for receiving molten metal is equipped with a device incorporating consumable components, the disintegration time of which may be predetermined, which holds a treating agent for the molten metal and is adapted to be submerged in the ladle and retained therein by the weight of the same.  The device is formed of a mixture of material selected from a group consisting of limestone and dolomite, a material selected from a group consisting of wood chips, wood flour and rice hulls, and a hydrocarbon resin binder and a catalyst for the binder.  This invention is distinguishable from others by reason of the form and composition of the treating agent containing device so that it will uniformly release the treating agent in a desired location in the ladle at a known desirable rate.
Patent CA-1046764-A (CA)
Inventor: STRIEGEL REX
IPC: A43B13/18
Filed: 1976-02-25
Granted: 1979-01-23
Abstract: A B S T R A C T      A support pad including an envelope of flex-ible material is disclosed.  A core of cellular material occupies substantially all of the space in the envelope. A liquid is dispersed in the cells of the core, the amount of the liquid being less than that which will saturate the core.
Patent CA-1051496-A (CA)
Inventor: BARTHELD ROBERT G
IPC: H02K15/16
Filed: 1976-03-19
Granted: 1979-03-27
Abstract: DYNAMOELECTRIC MACHINE SUPPORT FRAME WITH COPLANAR AND AXIALLY ALIGNED MOUNTING SURFACES                ABSTRACT OF THE DISCLOSURE    A support frame for a dynamoelectric machine having a stator and a rotor supported in bearings mounted in brackets for rotation about a horizontal axis with a uniform air gap between stator and rotor includes a horizontal base member and a pair of axially extending upstanding side walls rigidly connected to the base member and having first and second axially spaced pairs of planar rotor bearing bracket mounting surfaces adjacent opposite ends of the base member with all points thereon in a common horizontal plane and also having first and second axially spaced pairs of planar stator mounting surfaces disposed intermediate the first and second pairs of bracket mounting surfaces with all points thereon in a common horizontal plane.  In a preferred embodiment all mounting surfaces on the same lateral side of the frame are axially aligned with one another.
Patent CA-1038036-A (CA)
Inventor: PAYNE GEORGE C
IPC: G01V3/10
Filed: 1976-03-26
Granted: 1978-09-05
Abstract: SAMPLING METAL DETECTOR                            ABSTRACT         A sampling type of metal detector is described in which an oscillator transmits an oscillator signal current through the transmit coil of the detector to produce an electromagnetic field in the region of a search head.  A received signal is induced in the receive coil of the detector when a metal object is present within that portion of the electromagnetic field which is external to the search head.  A sampling pulse generator produces sampling pulses, at a time related to the output signal of the oscillator, which are transmitted to a sampling circuit for sampling the received signal.  In the preferred embodiment, the received signal is sampled at a time controlled by a phase shift adjustment means to produce an output sample voltage such that any indication due to mineral soils or other background conditions is excluded from the sample.
Patent CA-1063287-A (CA)
Inventor: IDE FUMIO
IPC: B32B27/30
Filed: 1976-04-30
Granted: 1979-09-25
Abstract: MULTI-LAYER STRUCTURE POLYMER COMPOSITION     ABSTRACT OF THE DISCLOSURE          A multi-layer structure polymer composition composed of an innermost layer (A), an elastomeric layer (B), an outermost layer (C), and at least one intermediate layer, said layer (A) having a glass transition temperature (Tg) of 10°C. or higher and consisting of the reaction product of 51 to 100 parts by weight of an alkyl meth-acrylate whose alkyl group has 4 or less carbon atoms, 0 to 49 parts by weight of a copolymerizable monomer, 0 to 10 parts by weight of a polyfunctional monomer, and 0.1 to 5 parts by weight of a graftlinking agent; said layer (B) having a glass transition temperature (Tg) of 0°C. or lower and consisting of the reaction product of 80 to 100 parts by weight of an alkyl acrylate whose alkyl group has 8 or less carbon atoms, 0 to 20 parts by weight of a copolymerizable monomer, 0 to 10 parts by weight of a polyfunctional monomer, and 0.1 to 5 parts by weight of a graftlinking agent; said layer (C) having a glass transition temperature (Tg) of 50°C. or higher and consist-ing of the reaction product of 51 to 100 parts by weight of an alkyl methacrylate whose alkyl group has 4 or less carbon atoms, and 0 to 49 parts by weight of a copolymeri-zable monomer; and said intermediate layer consisting of the reaction product of 10 to 90 parts by weight of an alkyl methacrylate whose alkyl group has 4 or less carbon atoms, 90 to 10 parts by weight of an alkyl acrylate whose alkyl group has 8 or less carbon atoms, 0 to 10 parts by weight of a polyfunctional monomer, and 0.1 to 5 parts by weight of a graftlinking agent.  The said polymer composi-tion is excellent in transparency, gloss, and resistance to stress whitening and has good resistance to weather and impact.
Patent CA-1065634-A (CA)
Inventor: PETROV EVGENY I
IPC: A41B11/00
Filed: 1976-05-25
Granted: 1979-11-06
Abstract: ABSTRACT OF THE DISCLOSURE         An article of hosiery and a method of knitting thereof on a circular knitting machine relates to the knitting industry.          The article is made up of two parts one of which parts is a single welt with an unravelling edge, whereas the second part has a machine-closed end.  Each loop of one part is linked with each loop of the other part by the ravelling courses arranged on the reverse side of the article along the linking line of the parts.  The process of knitting such an article starts with the knitting of one part on the needles of the circular machine, then a knitted part is shifted along these needles to a non-operating zone and the second part of the article is knitted on the same needles, meanwhile the already knitted part is held in the non-operating zone of the needles.  Thereafter, all the loops of the knitted parts are linked by the ravelling courses and the ready-to-wear article is knocked off from the needles of the machine.  The produced article has a pleasing appearance and good service properties.
Patent CA-1085491-A (CA)
Inventor: MATTHEWS RUSSELL B
IPC: F23N5/12
Filed: 1976-08-27
Granted: 1980-09-09
Abstract: ELECTRONIC VALVE SEAT LEAK DETECTOR     Abstract of the Disclosure:         An automatic fuel ignition system which provides automatic detection of a leak condition for a pilot valve which is operable to supply fuel to a pilot burner for ignition to establish pilot flame and a main valve which is operable to supply fuel to a main burner for ignition by the pilot flame of the system including a control circuit operable in response to a request signal to activate the system tentatively, a delay circuit which delays the operation of the pilot valve for a first delay period after the occurrence of the request signal, a flame sensing circuit which senses the presence of the pilot flame and effects operation of the main valve after a second delay period established by the control circuit, the flame sensing circuit being responsive to the presence of a flame at the pilot burner during the first delay period or at the main burner during the second delay period to cause the system to be deactivated.
Patent CA-1057954-A (CA)
Inventor: KARASAWA HIDEYASU
IPC: A63H15/00
Filed: 1976-08-27
Granted: 1979-07-10
Abstract: HUMMING BIRD     ABSTRACT OF THE DISCLOSURE:         A toy bird having a housing, within the housing are two sheaves mounted to a common shaft for rotation together, one of the sheaves having a larger inside diameter than the other, a first wing and a second wing disposed outside the housing, each wing being provided with a tang that passes through an opening provided in the housing and which is mounted for rotation within the housing independently of the other tang, two resilient cords, each cord passing through a separate opening provided in the housing and attached to one of the sheaves, the cord passing through the opening on the upper section of the housing being attached to the sheave having the smaller inside diameter so that when each cord is pulled with approximately equal force the hous-ing moves towards the end of the cord attached to the sheave hav-ing the smaller inside diameter, a shaft positioned off-center to the shaft attached to the two sheaves and passing through openings provided in the tang members causing its tang members to move when the sheaves are rotated, a cylinder and a piston mounted for reciprocal movement within the cylinder, the piston being opera-tively connected to the shaft that passes through the two open-ings, a sound producing mechanism in pneumatic connection with the bottom of the cylinder so that when the bird housing is caused to be moved upwardly and downwardly by force being applied or removed from one or both of the two cords, the wings "flutter" upwardly and downwardly and a sound is emitted each time the piston reciprocates in the cylinder.
Patent CA-1069479-A (CA)
Inventor: CORBEIL PAUL
IPC: B60Q3/20
Filed: 1976-09-16
Granted: 1980-01-08
Abstract: ABSTRACT OF THE DISCLOSURE           A lighting fixture comprising a housing having a light source therewithin.  A light transmitting panel is hinged to the housing with one of the longitudinal edges of the panel being formed with a hinge flange to hingeably engage within a channel member secured to the housing.  The other longitudinal edge is provided with fasteners to removably secure the panel to the housing.  The panel is constructed of translucent material and seals are provided to prevent light within the housing from leaking along the peripheral edge of the panel whereby all of the light from the housing is directed through the panel.
Patent CA-1062819-A (CA)
Inventor: AGAR GORDON E
IPC: B03D1/001
Filed: 1976-12-07
Granted: 1979-09-18
Abstract: ABSTRACT OF THE DISCLOSURE:           A flotation process for separating copper- and nickel-containing sulfide minerals from one another involves preparing the pulp of the sulfide mixture in an aqueous lime-saturated solution, conditioning the pulp at 35-55°C and carrying out the flotation in the presence of a cyanide salt and a collector for copper minerals.
Patent CA-1072156-A (CA)
Inventor: BLEWITT DONALD D
IPC: H01H85/10
Filed: 1976-12-08
Granted: 1980-02-19
Abstract: ABSTRACT OF THE DISCLOSURE         A high voltage current limiting fuse is taught which has a plurality of radially oriented, notched, pleated fuse ribbons.  The fuse ribbons feed through radial slots in spacers at either end of the fuse barrel.  A double fold in the fuse ribbon in the region  of the slot in each case provides a locking terminal for abutting the fuse ribbon against the spacer.  In addition, the double fold arrangement allows the fuse ribbon to be routed radially over the edge of the spacer and along the side of the fuse barrel, between the fuse barrel and the inside of a ferrule.          This secures the end of the fuse element and provides electri-cal continuity between the fuse element and the ferrule.
Patent CA-1079553-A (CA)
Inventor: HALL PETER J
IPC: G03B21/11
Filed: 1976-12-16
Granted: 1980-06-17
Abstract: ABSTRACT OF THE DISCLOSURE         A microfiche reader according to the present invention includes a housing consisting of a hood portion and a base por-tion, a screen located within the hood portion and visible through the front end of the hood, a combined microfiche carriage and index holder, a lens assembly and a projection system.  The com-bined microfiche carriage and index holder serves to accurately locate the microfiche with respect to the index grid.  By reason of the fact that there is no relative movement between the index grid and the microfiche in use, it is always possible to accurately locate the microfiche with respect to the projection system by reference to the index grid.   The index grid is illuminated by an index illuminating carried by the housing.  The illuminating lens is located in a fixed relationship with respect to the pro-jection path which again contributes to the facility with which the microfiche may be accurately located in the projection path. The lens  assembly includes a support plate mounted above the microfiche carriage and a slide member mounted in the support plate and a pair of lens members mounted in the above members so that either one may be located in the projection path as re-quired.  The projection system includes a demountable modular unit which may be easily mounted in and removed from the housing. A prefocussed lamp is mounted on the modular unit and the position of the prefocussed lamp with respect to the modular unit may be adjusted so as to vary the length of the illuminating path between the prefocussed lamp and the condenser means whereby the optical system may be adjusted to accommodate objective lenses having different characteristics.  The projection system consists of a profocussed lamp which projects a beam of light onto  a  cold mirror which reflects the beam of light through an optical con-denser which in turn directs the beam of light through the micro-fiche to an objective lens mounted thereabove.  A first surface mirror is mounted in the housing and reflects the beam of light emitted from the objective lens to a viewing screen mounted in the housing.  The viewing screen consists of a unitary body of molded plastics material having an image receiving surface formed with a concave spherical curvature. The image receiving surface may be plated with a suitable coating to form an image reflecting coating thereon.
Patent CA-1083694-A (CA)
Inventor: NGUYEN PHI D
IPC: H02J7/02
Filed: 1976-12-30
Granted: 1980-08-12
Abstract: METHOD AND APPARATUS TO RECHARGE A BATTERY         ABOARD AN ELECTRIC VEHICLE ABSTRACT OF THE DISCLOSURE          A method and an apparatus to recharge a power supply aboard a vehicle which is driven by one or more electric trac-tion motors.  The motors are capable of being fed by the power supply aboard the vehicle or by an exterior power supply source through an energy regulating circuit aboard the vehicle.  The energy regulating circuit is utilized to feed the electric trac-tion motors and to recharge the power supply aboard the vehicle. The energy regulating circuit operates at a constant rate whereby the energy not absorbed by the one or more electric traction motors is utilized to recharge the power supply aboard the vehicle.   A command circuit is associated with the energy regulating circuit to assure that the output of the energy regulating control circuit has a constant current out-put.
Patent CA-1102040-A (CA)
Inventor: FEEHAN CHESTER E
IPC: B05D7/14
Filed: 1977-01-21
Granted: 1981-05-26
Abstract: ABSTRACT           This invention provides a method of coating ferrous metal surfaces with a blend of high density and low density polyethylene powder wherein the coating is completed to the desired thickness in one application of the blended powder on a hot (400°F. to 550°F.) ferrous m tal surface.  The coating may be cured or quenched after application depending on the amount of heat available from the coated object.
Patent CA-1087738-A (CA)
Inventor: DAY CHRISTOPHER C
IPC: G01D9/00
Filed: 1977-04-14
Granted: 1980-10-14
Abstract: ABSTRACT           A system for the cyclical time-compression of a signal waveform, particularly applicable to the display of physiological waveform data from patients.  The system receives a continuous data sequence, as from an initial waveform, and continuously and temporarily stores waveform data during the trace and retrace phases (phases B & A) of a processing or display operation or cycle and which subsequently reads out substantially all of the stored data in a time-compressed form during the trace phase (phase B) of the cycle.  The average rate at which data is read out of storage is faster than the average rate at which it is entered into storage, the ratio of the average readout rate to the average entry rate being the compression ration of the system and corresponding herein with the ratio of a full display sweep cycle to the trace portion of that cycle.  The resulting data which is read out from the time-compression system may be applied to the input of display means and comprises the initial signal waveform now in time-compressed form, such that the initial waveform is displayed in its entirety.      In a preferred embodiment, periodic samples of the initial, or source, waveform are sequentially entered in a fixed access, recirculating memory (shift register) at a rate which results in apparent precession of the samples in the memory.  When the memory is "full", the Abstract...continued. samples are read out of memory at a syncopated rate which, on average, is faster than the rate at which samples had entered and are continuing to enter, thereby decreasing the storage delay between entry and readout.  The time-compression ration is essentially  , where n is an integer representative of the length of the trace phase of a trace-retrace display cycle.  Means are provided for reclocking and equalizing the timing of the data samples being read out of memory at a syncopated rate to avoid distortion in the output waveform.