baber/WOPTO huggingface dataset:
Patent CA-1125796-A (CA)
Inventor: MCMICKLE ROBERT L
IPC: E01H5/04
Filed: 1979-11-26
Granted: 1982-06-15
Abstract: ABSTRACT OF THE DISCLOSURE     A portable rotary snow thrower is disclosed.  The housing of the snow thrower is baffled to cause the snow to be thrown to one side for a particular direction of rotation of the rotor.  The rotor may also be rotated in the opposite direction to throw the snow to the opposite side of the snow thrower through the same opening without repositioning of baffles or other mechanical elements.
Patent CA-1128927-A (CA)
Inventor: THOMPSON CHARLES M
IPC: E21B7/04
Filed: 1979-12-20
Granted: 1982-08-03
Abstract: ABSTRACT           A stabilizer for a drill string is disclosed.          The stabilizer is of split configuration having an open slot or split which extends for the length of the stabilizer.          The split stabilizer is slipped over a drill collar and fasteners are used to draw the split stabilizer together to clamp the stabilizer to the drill collar.   The stabilizer may thus be positioned at any desired axial location on the drill collar and non-rotatably locked thereto by the fast-eners.  Advantageously, the stabilizer is made of a non-magnetic material.
Patent CA-1120217-A (CA)
Inventor: DEMRICK CARL J
IPC: B60B33/00
Filed: 1980-01-16
Granted: 1982-03-23
Abstract: BUSHING AND GREASE RETAINER FOR CASTERS               ABSTRACT OF DISCLOSURE             This invention relates to a pivot bushing for casters and in which the stem for associating the caster with an article it is to support, is mounted.  The bushing pre-ferably is non-metallic and fits into the caster stem mount with a close fit for at least a portion of its depth with a clearance fit in the lower area where the system must pass beyond an annular shoulder in the bushing for retention.  The bushing has a fully closed lower end for retaining grease used to lubricate the stem for rotation in the bushing.  The upper end of the bushing includes an integral cap-like en-closure, or shroud, which overlies the top end of the tube for mounting the bushing and stem in a caster and which lends a finished appearance in this area.  A vertical exterior bead on one side of the bushing serves to engage a seam in the mounting tube to position the bushing properly relative to the caster.
Patent CA-1137908-A (CA)
Inventor: BARTHOLIC DAVID B
IPC: C10G11/18
Filed: 1980-01-23
Granted: 1982-12-21
Abstract: CONTROL OF EMISSIONS IN FCC REGENERATOR FLUE GAS            ABSTRACT OF THE DISCLOSURE         Process and system are described for control of sulfur oxide in emissions to the atmosphere from regenerators of Fluid Catalytic Cracking Units (FCC) in a manner which improves the operation of the regenerator and/ or the reactor.  Spent FCC cracking catalyst containing sulfur-bearing inacti-vating carbonaceous deposit is partially oxidized, preferably in the presence of steam, thereby producing a mixture of CO and CO2 and releasing sulfur in the resulting reducing atmosphere as vaporous hydrogen sulfide before the catalyst is regenerated, whereby the amount of sulfur convertible to noxious SOx in the regenerator flue gas is reduced.  By the disclosed process and system, the quantity of oxygen introduced is predetermined and controlled in response to hydrogen content of the coke on the partially oxidized catalyst or an SOx analyzer associated with the regenerator can be used as a control tool.  Preferably, spent catalyst is partially oxidized in the presence of steam in a vessel separate from the regenerator and reactor, whereby the effluent can be utilized as a source of low BTU gas.
Patent CA-1133592-A (CA)
Inventor: BLACKBURN TOM L
IPC: G05F3/22
Filed: 1980-02-08
Granted: 1982-10-12
Abstract: D-21,851 TEMPERATURE COMPENSATED CURRENT SOURCE by Tom L. Blackburn ABSTRACT OF THE DISCLOSURE              An integrated current source comprising a plurality of NPN transistors and a discrete resistor having one side thereof electrically connected through a PNP transistor to a first DC supply voltage and through series connected base-emitter junction diodes of a prescribed number of ones of the NPN tran-sistors to a temperature stable DC supply voltage.  The other side of the resistor is electrically connected to a temperature stable reference potential through series connected base-emitter junction diodes of the same prescribed number of others of the NPN tran-sistors, with the base-emitter junction diodes of one and other NPN transistors being poled in opposite directions.  Each of the one transistors is also paired with an associated other transis-tor.  Considering each pair individually, the transistors thereof are caused to pass collector currents of substantially the same values so that their base-emitter junction voltages are also substantially the same values.  This causes the temperature stable supply voltage to be established across the resistor in order to set a reference current in it and one of the other transistors that is substantially constant and independent of temperature.
Patent CA-1132438-A (CA)
Inventor: SAELE ARVID H
IPC: F04B1/26
Filed: 1980-03-03
Granted: 1982-09-28
Abstract: POSITIVE NEUTRAL CONTROL FOR HYDROSTATIC TRANSMISSION               Abstract of the Disclosure A hydrostatic transmission includes a reversible, variable displacement pump having a swashplate actuator controlled by a pilot-operated displacement control valve.  A manually operated displacement control lever is manipulated to opposite sides of a neutral position to effect command signals for causing pilot operation of the displacement control valve to control movement of the swashplate in accordance with the command.  A neutral control valve is coupled to the displacement control lever and is operated thereby to a neutral position, wherein it connects the swashplate actuator to sump, when the lever is moved to its neutral position.
Patent CA-1136218-A (CA)
Inventor: SUZUKI MASAYUKI
IPC: G01N17/02
Filed: 1980-03-07
Granted: 1982-11-23
Abstract: Abstract of the Disclosure A test piece is immersed in an electroless plating bath.  It is then electrically charged instantaneously via a counter electrode to have a polarization potential ?(t) of a few millivolts.  The charge consumed by the electroless plating reaction of the test piece is measured by a potential recorder in the form of a variation of the polarization potential ?(t) with respect to time t.  The ?(t)-t relation is analyzed to obtain a resistance R of the test piece.  After the potential of the test piece has returns to electroless deposition potential EELP, the test piece is charged again until its polarization potential ?(t) rises to 50 millivolts or more.  A ?(t)-t relation is obtained. Based on the ?(t)-t relation, a Tafel slope .beta.a of anodic reaction is obtained.  After the potential of the test piece has returned to electroless deposition potential EELP, the test piece is so charged for the third time as to have its polarization potential ?(t) lowered to -50 millivolts or less, and a ?(t)-t relation is obtained.  This relation is analyzed to obtain a Tafel slope .beta.c of anodic reaction of the test piece.  Based on the reaction resistance R, Tafel slopes .beta.a and .beta.c, an electroless plating current density IELP is obtained. Based on the electroless plating current density IELP, a rate of electroless plating VELP is calculated.
Patent CA-1130784-A (CA)
Title: Apparatus for securing a heating or cooling means  to a pipe
Inventor: WOJTECKI RUDOLPH G
IPC: F28F9/013
Filed: 1980-05-21
Granted: 1982-08-31
Abstract: ABSTRACT OF THE DISCLOSURE           A heat transfer apparatus (13) adapted to re-leasably secure an elongate heating or cooling means to a pipe.  Apparatus (13) has a flexible base member (3) that adapts to the radius of curvature of the outer circumfer-ence of the pipe and preferrably has at least one protu-berance (8) in its wall.  One or two resilient side walls (4) extend over the side of base member (3) that faces away from the pipe to provide a longitudinal cavity for contain-ing the heating or cooling means.  An entrance-way (6) is provided for inserting or removing the heating source into or from the cavity.  Side walls (4) are shaped such that they press uniformly against the heating or cooling means and urge said means against base member (3).  Means (11) are provided for securing apparatus (13) to the pipe so the heating or cooling means can be removed from or inserted into the ca-vity without having to release apparatus (13) from the pipe.
Patent CA-1154443-A (CA)
Inventor: REINSTORFF DIETER
IPC: C07C45/29
Filed: 1980-05-23
Granted: 1983-09-27
Abstract: ABSTRACT OF THE DISCLOSURE         The invention relates to a process for the preparation of a solution of trichinoyl, its radicals, polymers and chain fragments, also as radicals, and a medicament prepared according to this process, where-by the compounds rhodizonic acid and trichinoyl and their polymers preparable in accordance with the invention form an oxidoreduction equilibrium if they are incorrect proportions with respect to one another, and also assume the character of free radicals and can therefore decouple electron transfers blocked in the breathing chain of living cells and/or in the inter-mediary metabolism and can be used for eliminating illnesses or for aiding the cure of patients.
Patent CA-1132615-A (CA)
Inventor: BERKOWITZ SIDNEY
IPC: C07C41/03
Filed: 1980-06-25
Granted: 1982-09-28
Abstract: Abstract:          PREPARATION OF ALKYL GLYCERYL ETHER ALCOHOLS      This invention relates to a process for preparing nonionic glycidol-derived surfactants.  Specifically C10-C20 n-alkyl glyceryl ether alcohols containing from 1 to about 10 glyceryl units, are prepared by reacting crude glycidol and a C10-C20 n-alkyl alcohol in the presence of a non-polar, non-reactive miscible solvent.
Patent CA-1175990-A (CA)
Inventor: AVIRAM ARI
IPC: G03C5/16
Filed: 1980-08-25
Granted: 1984-10-09
Abstract: ABSTRACT           A new class of phot resists is described.  The resists are donor polymer-doped halcarbon acceptor transfer complexes.  They are prepared from know polymeric backbones such as polyvinylchloride, polyglutamic acid, polyvinylbenzylchloxide, polyepichlorohydrin, poly(.alpha.halophosphazenes), polyacrylic chloride, polystyrene and the like; and donor molecules such as tetrathiafulvalenes, tetraselenafulvalenes, dithiadiselenafulvalene, ferrocenes, phenothiazines, pyrazoline and an amine having the general formula R-NH2 where R can be selected from alkyl and aryl groups.  A lithographic method is also described.
Patent CA-1167580-A (CA)
Inventor: LEWIS RICHARD H
IPC: D06P1/00
Filed: 1980-09-05
Granted: 1984-05-15
Abstract: ABSTRACT OF THE DISCLOSURE This invention provides an aqueous gel composition which is adapted for application on the surface of articles to achieve a sharply defined multicolor pattern effect.          The aqueous gel composition consists of an aqueous gel matrix which has dispersed therein one or more immiscible colorant gel phases.
Patent CA-1153874-A (CA)
Inventor: VAN DER BURGT MAARTEN J
IPC: F04D23/00
Filed: 1980-09-09
Granted: 1983-09-20
Abstract: A B S T R A C T     A METHOD AND DEVICE FOR THE FEEDING OF FINELY DIVIDED SOLID           MATTER TO A GAS-CONTAINING VESSEL     Process and device for introducing solid particles, e.g. particulate coal, into a gas-containing vessel, using a cen-trifugal coal pump comprising a feed inlet and a rotor. The rotor is surrounded by hydrogen, having a lower density than the vessel gas in order to reduce friction. means to reduce leakage are provided for.
Patent CA-1155869-A (CA)
Inventor: YANG KANG
IPC: C07C213/00
Filed: 1980-09-22
Granted: 1983-10-25
Abstract: Abstract of the Disclosure Cresylic acid ethoxylation is catalyzed by basic compounds and salts of alkaline earth metals.  Ethoxylates from such reactions have narrow ethylene oxide distributions, lower pour points and lower by-products as compared to alkali base catalyzed ethoxylation.  Suitable catalysts include strontium-containing and barium-containing materials.  The catalyst also includes co-catalyst combinations using these materials with one or more promoters including polyols, amines, amides, carboxylic acids and phenols.  The co-catalyst combinations can be preformed prior to introduction into the reaction mixture.
Patent CA-1157763-A (CA)
Inventor: BROADHEAD JAMES H
IPC: A47C7/38
Filed: 1980-10-09
Granted: 1983-11-29
Abstract: ABSTRACT OF THE DISCLOSURE     An articulating headrest for a dental chair having a unidirectional locking means is described.  The locking means comprises a locking plate engageable with a pivotable shaft connected to a headrest support means.  The locking means is adapted to one-handed operation by an operator and permits unhindered forward rotational movement of the headrest about the support means in order to prevent accidental jamming of the headrest against an object during downward movement of the dental chair.
Patent CA-1152575-A (CA)
Inventor: BERGGREN BENNY
IPC: H05B6/80
Filed: 1980-11-27
Granted: 1983-08-23
Abstract: ABSTRACT OF THE DISCLOSURE           A device for microwave heating, comprising a waveguide, in which a material is intended to be heated, and a microwave source connected to the waveguide. According to the invention, the waveguide includes a part where its cross-sectional area decreases con-tinuously from the part end located closest to the microwave source to the other end of the part, where the waveguide along said part includes a portion with a geometry, at which fed-in microwave energy no longer can propagate in the waveguide, i.e. the waveguide proceeds continuously to so-called cut off at a certain distance from the narrower end of said part.
Patent CA-1157042-A (CA)
Inventor: LOGAN TED J
IPC: C11B7/00
Filed: 1981-01-14
Granted: 1983-11-15
Abstract: ABSTRACT      Alkyl fatty carboxylate mixture is separated accord-ing to degree of unsaturation utilizing selected surface aluminated silica gel adsorbent and selected solvent(s).
Patent CA-1129658-A (CA)
Inventor: GOLDSMITH SYDNEY A
IPC: A01D46/26
Filed: 1981-02-03
Granted: 1982-08-17
Abstract: IMPROVEMENTS IN AND RELATING TO HARVESTING APARATUS             ABSTRACT OF THE DISCLOSURE         The specification discloses harvesting apparatus comprising a main frame which is moveable relative to the ground.  Power means are mounted on the main frame to provide power for the relative movement between the frame and the ground.  At least one shaker head assembly is located on each side of a longitudinal horizontal axis through the frame.  The or each shaker head assembly to one side of said longitudinal axis is located forwardly of the corresponding shaker head assembly on the other side of the horizontal axis such that the shaker head assemblies are positioned in a staggered relationship along the frame. A shaft attached to an output of each shaker head assembly is provided with at least one set of radially spaced harvesting fingers.  These harvesting fingers, in use, come in contact with produce bearing plants or bushes as the main frame moves through or over the plants or bushes thus vibrating and shaking the plants or bushes to cause fruit berries or the like produce to be dislodged therefrom.  This arrangement has the advantage of increasing the yield of harvested crops.
Patent CA-1162253-A (CA)
Inventor: HARDIGG JAMES S
IPC: H01M50/169
Filed: 1981-02-04
Granted: 1984-02-14
Abstract: ABSTRACT OF THE DISCLOSURE          WELDING APPARATUS AND METHOD          A device and method for welding battery jar covers onto battery jars with the battery elements and terminal post in position within the jar and with a cover placed in position.  The invention includes an exemplary welding apparatus that employs separate heating and clamping mechanisms on each side of the jar so that the cover does not have to be lifted completely off the jar during welding and this structure greatly reduces the time required to change over from one size to another thereby increasing the per unit processing capacity of the device.  Further, in order that a variety of jar sizes be rapidly handled, two of the heating and clamping mechanisms are relatively long while the other two or relatively short and equal to the constant width dimension of batteries.  The invention accomplishes the loading operation automatically and by not removing the cover fully from the jar better and more accurate welds are produced.
Patent CA-1250014-A (CA)
Inventor: SPIRA JOEL S
IPC: H05B41/392
Filed: 1981-02-18
Granted: 1989-02-14
Abstract: GAS DISCHARGE LAMP CONTROL            ABSTRACT OF THE DISCLOSURE           The input energy to a gas discharge lamp is con-trolled over a given range to obtain output light regulation in a controlled fashion for different kinds of gas discharge lamps, including fluorescent lamps, high intensity discharge lamps and others associated with any type ballast, including conventional non-dimming type ballasts. A suitable circuit switches each half wave of an input a-c wave form from some instantaneous value greater than zero to a substantially zero value and then back to a value greater than zero one or more times in each half cycle. The time duration of the sub-stantially zero energy interval is varied to vary the total energy applied to the gas discharge lamps. In a preferred embodiment, a first high speed electronic switch is con-nected in series with the a-c source and lamp ballast and a high speed electronic shunt switch is connected across the a-c line and ballast input. The series switch is opened to produce the zero energy interval. Simultaneously with the opening of the series switch, the shunt switch is closed to allow discharge of energy stored in the reactive components of the ballast into the lamp. When the series switch is re-closed, the shunt switch is simultaneously opened. Other embodiments are described which include the use of passive energy divertors in place of the shunt switches or across the series switch.  Numerous protective circuits protect the control circuit, the lamp and ballast, and the a-c line.     These include a drop-out circuit which turns off the circuit if input power varies from a given value for one-half cycle or more; logic timing circuits for the series and shunt switches; surge current protection circuits to protect the series switch during turn-on; and circuits to control the turn-on and shut-down processes of the circuit.  The control circuit is suited to retrofitting into existing in-stallations using gas discharge lamps and conventional ballasts.  Arrangements are described to allow independent turn on and turn off of banks of lamps energized from a common control circuit such that a sufficiently high striking voltage is applied to the starting bank for a pre-determined time, even though the other banks are operated in a dimmed condition.
Patent CA-1137033-A (CA)
Inventor: WEAVER JAMES A
IPC: E05D15/06
Filed: 1981-02-20
Granted: 1982-12-07
Abstract: ATTACHMENT FOR FORK LIFT TRACK                         ABSTRACT      An attachment for a fork lift truck for opening and closing sliding doors such as railway freight car doors.  The attachment includes a floor that can be engaged by the  tines of the fork lift and two vertically  spaced  apart  door engaging  members mounted to the floor for transverse movement with respect thereto.  The floor also mounts an up-standing cage assembly so that a person can work inside a protected area.
Patent CA-1156157-A (CA)
Inventor: BERZ WOLFGANG
IPC: B01D46/30
Filed: 1981-03-10
Granted: 1983-11-01
Abstract: Abstract In an installation which operates intermittently, a filter bed (30), consisting of granulate material, is located between two gas-permeable walls (31, 32).   One (31) of these gas-permeable walls is connected to one pole of a direct current source (33) of high electrical potential, whilst the other wall (32) is connected to earth, via conductors (34, 35).    The two gas-permeable walls (31, 32) are located concentrically, so that the filter bed (30) has an annular cross-section.    Regen-eration of the filter-bed material is effected with the aid of a central conveying pipe.    The filter device is part of a system which consists of a plurality of units, in which system at least one unit is regenerated, at any given time, with the source of direct current switched off, whilst the filter beds of the other units, which are in operation, are undisturbed.       Through the combination of the high electrical potential charging of the filter bed, with a filter-bed thickness between 25 and 100 mm, and a grain size bet-ween 0.5 and 2 mm, there results an energy-saving mode of operation, with uniform gas throughput and a high degree of cleaning.       The system can be employed wherever dust-laden industrial gases have to be cleaned.                                  (Figure 3).
Patent CA-1169585-A (CA)
Inventor: ABBAS SHAKIR A
IPC: H01L27/10
Filed: 1981-06-15
Granted: 1984-06-19
Abstract: SELF-ALIGNED METAL PROCESS FOR FIELD EFFECT      TRANSISTOR INTEGRATED CIRCUITS                    Abstract A self-aligned metal process is described which achieves self-aligned metal to silicon contacts and submicron contact-to-contact and metal-to-metal spacing for field effect transistor integrated circuits.  The insulation between the contacts and the metal is a pattern of dielectric material having a thickness dimension in the order of a micron or less.  The metal and dielectric structure is substantially planar.  The method for forming integrated circuits with this structure involves providing a silicon body and then forming a first insulating layer on a major surface of the silicon body.  A layer of polycrystalline silicon is formed thereover.  Openings are made in the poly-crystalline silicon layer by reactive ion etching which results in the structure having substantially horizontal surfaces and substantially vertical surfaces.  The openings can be in either the areas designated to be the gate regions or a PN junction region of the field effect transistors in the integrated circuit.  A second insulating layer is then formed on both the substantially horizontal surfaces and substantially vertical surfaces. Reactive ion etching of this second insulating layer substantially removes the horizontal layers and provides a narrow dimensioned dielectric pattern of regions on the major surface of the silicon body.  The gate dielectric is either formed hereat or PN junctions are fabricated by diffusion or ion implantation techniques.  The remaining polycrystalline silicon layer is then removed by etching to leave the narrow dimensioned regions on the major surface of the silicon body. conductive layer is blanket deposited over the narrow dimensioned regions and areas in between to make contact to source/drain PN regions and form the gate electrodes.  A blanket layer of a plastic material over the conductive layer is used to planarize the surface.  Reactive ion etching the plastic material and the conductive layer is continued until the tops of the narrow dimensioned regions are reached.  The plastic material is then removed leaving the structure of patterns of metal or polycrystalline silicon filling the regions between the pattern of dielectric material having a thickness dimension in the order of a micron or less.  The gate, source and drain electrodes are thusly formed.
Patent CA-1128992-A (CA)
Title: High frequency circuit for operating a high-intensity,  gaseous discharge lamp
Inventor: HOLMES KENNETH P
IPC: H02M7/44
Filed: 1981-06-29
Granted: 1982-08-03
Abstract: HIGH FREQUENCY CIRCUIT FOR OPERATING                 A HIGH-INTENSITY, GASEOUS                      DISCHARGE LAMP     ABSTRACT OF THE DISCLOSURE         A high frequency drive circuit operating as a push-pull, Class C oscillator for driving a high-intensity, gaseous discharge lamp and avoiding the use of a relatively large ballast coil.  A highly stable power supply for operating in conjunction with such circuit is also provided.