baber/WOPTO huggingface dataset:
Patent CA-1200979-A (CA)
Inventor: GERMAN MARTIN A
IPC: B24B53/08
Filed: 1981-12-29
Granted: 1986-02-25
Abstract: ABSTRACT An automatic external cylindrical grinding center (10), having a pair of driven grinding wheels (86, 88) capable of straight and angular wheel feed for grinding a workpiece in on-center or chucking configur-ations.  The grinding center (10) has a base (16) with a swivel table (20) pivotally mounted thereon.  A longitudinally positionable work head (24) and footstock (26) are mounted on the base (16). A carriage (56) is slidably mounted on ways (52, 54) which extend longi-tudinally on the base (16).  A pair of rearward extending ways (72, 74) are provided on top of the carriage (56) to support a wheel slide assembly (76) for back and forth movement.  A rotatable wheel head (84) is mounted from the wheel slide (76) and supports two driven grinding wheels (86, 88) mounted thereon.  The rotatable wheel head (84) is positionable at various positions to bring either grinding wheel (86, 88) into position for contacting the workpiece.  The carriage (56) and wheel slide assembly (76) are movable along their respective axes in response to a programmable controller.  The orthogonal feed axes-can be selectively programmed to operate independently or simultaneously at independent or related feed rates permitting use of the machine as a straight plunge or an angular feed grinding machine.  A carriage traverse guide (66) extending parallel to the longitudinal ways (52, 54) is located to minimize effects of machine base thermal distortions.  Two fixed dressing diamonds (36, 38) are mounted to the footstock (26) for dressing the grinding wheels (86, 88).  Dressing is accomplished by moving the carriage (56) and wheel slide assembly (76) along a selected path at programmed rates and distances to produce the desired wheel contours.
Patent CA-1187583-A (CA)
Inventor: GETZ EDWARD H
IPC: D06F39/08
Filed: 1981-12-30
Granted: 1985-05-21
Abstract: AUTOMATIC LIQUID LEVEL CONTROL FOR AUTOMATIC WASHERS               ABSTRACT OF THE DISCLOSURE         An automatic liquid level control is provided for an automatic washing machine which measures the volume of liquid required to be added to the tub increase the liquid level in the tub by a predetermined increment.  The measured amount is compared to a reference amount corresponding to an empty tub.  When the measured amount equals the reference amount, the clothes in the washer will be covered and the control terminates introduction of the liquid into the tub and continues with the remainder of the washing cycle.
Patent CA-1166219-A (CA)
Inventor: EMINGER ROBERT J
IPC: H02K15/085
Filed: 1982-01-22
Granted: 1984-04-24
Abstract: ABSTRACT:           FLYER WINDER FOR EXTERNALLY SLOTTED DYNAMOELECTRIC MACHINE CORE MEMBER    Apparatus for winding coils in the slots of an externally-slotted dynamoelectric machine core member comprises a flyer and a support for the core arranged so that the flyer axis extends through the peripheral edge of the core midway between the two slots in which a coil is to be wound and parallel with and midway between the core sides.  A shroud member is disposed within the path of rotation of the flyer, the shroud having portions adapted to extend outwardly over each side of the core to overlay the sides of the core portion between the two slots around which a coil is to be wound.  The shroud portions have outer and inner ends with the inner and outer ends being joined by a radially outwardly facing, outwardly tapered surfaces.  Two rotatable wheel elements are provided on opposite sides of the core and having peripheral surfaces adjacent the shroud portion surfaces.  The outer surface of each shroud portion has an out-wardly extending groove therein and the peripheral surface of the respective wheel element extends into the groove thereby inhibiting rotation of the shroud member.  Each of the wheel elements has a cut-out portion which communicates with its peripheral surface and which has a radially extending trailing edge which faces the respective core side as the wheel element is rotated in a direction to move the edge from the inner to the outer end of the respective shroud surface.  The wheel elements are rotated in opposite directions and the cut-out portions are phase-displaced by 180° to permit passage of the flyer as the same rotates about the shroud member so that wire is initially wound around the shroud portions and alternately engaged by the leading edge of a wheel element cut-out portion and pulled thereby outwardly over the outer end of a shroud portion to guide the wire into and toward the back of the two slots.
Patent CA-1178464-A (CA)
Inventor: LE ROUZIC JEAN
IPC: G02B6/293
Filed: 1982-02-10
Granted: 1984-11-27
Abstract: ABSTRACT OF THE DISCLOSURE A matrix-type optical concentrator -distributor.          It comprises a matrix of retractable light deflection members, whereof the m lines and k columns (respectively 1 remaining columns) are optically connected to m and k transmitters - receivers (respectively 1 transmitters) of light signals to form two submatrixes having respectively k x m and 1 x m of said members. Preferably, the k x m members permit the passage of the incident signals from the transmitters and in part those from the transmitters -receivers and the 1 x m members permit the partial passage of the incident signals from the 1 transmitters and the m transmitters - receivers. This leads to bidirectional communication between the m and k transmitters - receivers and unidirectional communicat-ions from the 1 transmitters to the m transmitters -receivers, optically managed by the means intercepting a transmitted part of the signals.         Application to optical telecommunications.     Figure 1.
Patent CA-1193804-A (CA)
Inventor: MOTOV DAVID L
IPC: C14C3/04
Filed: 1982-02-10
Granted: 1985-09-24
Abstract: LEATHER TANNING AGENT AND PROCESS FOR MAKING          SAME                       A b s t r a c t A leather tanning agent characterized in that it con-tains the following components, per cent by weight: sulphate of aluminium and ammonium containing 0.001 to 1.0% of TiO2 or TiO2 and ZrO2    3 to 20 and/or sulphate of zirconium and ammonium con-taining 0.001 to 0.5% of TiO2 or TiO2 and Al2O3 20 to 50 and sulphate of titanyl and ammonium contain-ing 0.001 to 1.0% of Al2O3 and/or ZrO2         the balance.       The above-mentioned additives of TiO2, ZrO2 and Al2O3 incorporated in the sulphates are present therein in a che-mically combined state.      A process for producing the leather tanning agent is c h a r a c t e r i z e d   i n   t h a t   a titanium-con-taining solution with a concentration of titanium of from 80 to 200 g/l as calculated for titanium dioxide is reacted with a solution of aluminium sulphate containing 80 to 130 g/l of aluminium as calculated for alumina, and/or a so-lution of zirconium sulphate containing 50 to 200 g/l of zir-conium as calculated for zirconium dioxide in the presence of sulphuric acid and ammonium sulphate.     The sulphate tanning agent according to the present invention can be very useful in the leather industry.
Patent CA-1165409-A (CA)
Inventor: BLACKBURN TOM L
IPC: H03G3/30
Filed: 1982-03-05
Granted: 1984-04-10
Abstract: D-22,794 VARIOLOSSER FOR AN AUTOMATIC GAIN CONTROL CIRCUIT   by Tom L. Blackburn Abstract of Disclosure A dc control current is developed in a first transistor circuit and the control current is responsive to a control voltage which is pro-portional to the output voltage of a fixed gain amplifier. A reference voltage is applied to a second transistor which provides the normal oper-ating bias for said fixed gain amplifier, and, also, provides a variable impedance via the diode circuit of the base-emitter junction. This diode circuit is a part of a variolossor that also includes a resistor which is connected in the series path between the signal source and the fixed gain amplifier. The bias voltage of the second transistor does not change but the diode impedance varies as the control voltage varies so as to main-tain the amplifier output constant.
Patent CA-1163644-A (CA)
Inventor: EISTETTER KLAUS
IPC: C07D303/48
Filed: 1982-03-05
Granted: 1984-03-13
Abstract: Abstract A process for the preparation of new epoxycycloalkylalkane-carboxylic acids of the general formula I                   (I) wherein R denotes a hydrogen atom or a lower alkyl group, Y denotes an oxygen atom (-O-) or a methylene group (-CH2-), m denotes an integer from 0 to 6, n denotes an integer from 0 to 6 and p denotes an integer from 2 to 11 (and m cannot be 0 or 1 if Y represents an oxygen atom, and the sum of the numbers m, n and p is an integer from 6 to 15), and also the salts of the carboxylic acids, is given.  The compounds produced according to the invention exhibit a hypoglycaemic action on warmblooded animals.
Patent CA-1168385-A (CA)
Inventor: BISS RUDY
IPC: B03D1/02
Filed: 1982-04-30
Granted: 1984-05-29
Abstract: ABSTRACT OF THE DISCLOSURE          Direct flotation of pyrochlore from its ore can be carried out at acidic pH using 1-amidoethyl-2-substituted imidazolines of the formula (I)   wherein R and R' are independently alkyl or alkenyl of 8 to 22 carbons, or their salts.  In the presence of large amounts of carbonate in the ore, the pulp is acidified with hydrofluoric acid, fluosilicic acid, or their acid reacting compounds.  Using this process, pyrochlore concentrates can be obtained by direct flotation from ore containing 0.1% or more of sulphide compounds calculated as FeS2.
Patent CA-1152209-A (CA)
Inventor: DESANTIS CHARLES M
IPC: H01Q23/00
Filed: 1982-05-03
Granted: 1983-08-16
Abstract: Abstract of the Disclosure A low-profile survivable antenna suitable for military use is described.  Despite its small size, which might be one tenth of a wavelength, the antenna has reasonable transmission range for these applications.  Very little operator attention is needed in operation, since a special matching circuit within the antenna network enables effective impedance matching, over a 3:1 frequency range, without necessity of switching to different matching circuits over different frequency bands.  By including resistive components along with other passive inductive or capacitive elements, the reactance of the single matching circuit is made to effectively compensate the antenna's impedance over the entire frequency range.  The impedance of the circuit has a decreasing positive reactance which compensates for the decreasing negative reactance, with frequency, of the antenna.  Although the transmission effi-ciency of the matched antenna network is somewhat diminished by resistive losses, it is still satisfactory, and band switching with this matching circuit is completely eliminated.  By including a slender whip screwed into the top, the range can be doubled with no further changes.  The matching techniques to be described are most easily realized in the HF through VHF range (1-200 MHz).
Patent CA-1178099-A (CA)
Title: Microcomputer controlled photographic exposure system   and method
Inventor: FEINERMAN ALAN D
IPC: G03B7/28
Filed: 1982-08-18
Granted: 1984-11-20
Abstract: ABSTRACT OF THE DISCLOSURE A microcomputer is employed in an automatic exposure control system for developing and controlling execution of film exposure strategies for both ambient light exposures and flash and fill flash exposures wherein the scene is illuminated with a mixture of ambient light and artificial illumination provided by a photoflash lamp which may have light output characteristics that deviate from specification due to manufacturing variances.  Using pre-exposure scene brightness and distance inputs the computer selects an appropriate one of a plurality of different preprogrammed trajectory signal programs which is to be fed to a stepper motor that drives a shutter blade mechanism in a manner whereby its operation is characterized by an aperture size versus time trajectory curve defined by the selected program.  During the course of an exposure interval scene brightness level, including the flash contribution is monitored and is fed back to the computer which is programmed to regulate the provision of trajectory signals to the stepper motor so as to adjust the trajectory curve for optimum exposure in a manner that compensates for variations in the output characteristics of the photoflash lamp.
Patent CA-1206700-A (CA)
Inventor: FLORENCE DAVID M
IPC: C08J9/10
Filed: 1982-09-08
Granted: 1986-06-24
Abstract: LOW DENSITY CELLULAR POLYVINYL CHLORIDE                       Abstract A blend is provided which is suitable for preparing low density cellular products, said blend comprising a vinyl chloride resin, e.g., polyvinyl chloride; a butadiene rubber, e.g , butadiene-acrylonitrile; and a liquid polyfunctional monomer, e.g., styrene.  Insulation products such as sheets or tubes (for pipe insulation) are easily fabricated by freely expanding (i.e., without employing forming molds) blends of the invention which contain heat activated blowing agents.
Patent CA-1179420-A (CA)
Inventor: TAKADA KEISUKE
IPC: G05B11/01
Filed: 1982-10-15
Granted: 1984-12-11
Abstract: Abstract of the Disclosure A computer process control system includes at least one control section which is housed in a case and connected to a detection terminal and which automatically produces an operation signal for compensating for a difference between a process variable and a preset target value.  At least one man-machine interface unit is included separate from the control section to display the process variable and the target value and to allow the operator to manually produce an operation signal.  An output section is detachably connected to the control section and the man-machine interface unit and supplies one of the operation signals, in accordance with one of the corresponding operation modes, to a process actuator terminal.          The man-machine interface unit is arranged to an important loop to be supervised by the operator.
Patent CA-1176235-A (CA)
Inventor: MULLINS JOHN M
IPC: E21B10/23
Filed: 1982-10-27
Granted: 1984-10-16
Abstract: ABSTRACT OF THE DISCLOSURE      An earth boring bit of the air cooled bearing type has features to improve cleaning of the borehole.  The bit has three bit legs, each with a depending bearing pin that receives a rotatable cutter.  Bearings are located between the  bearing  pin and  the  cutter. Passages  communicate drilling fluid from the drill string to the bearings.  A slot between the bit leg and the backface of the cutter enables air to be discharged from the bearing pin into the borehole.  The portion of the slot on the lower side of the bearing pin is greater in cross-sectional  flow area than the portion on the upper side.  The portion of the slot on the lower side exposes  the outer  ends  of  the roller bearings to the borehole.
Patent CA-1203525-A (CA)
Inventor: ROYDHOUSE RICHARD H
IPC: B01D53/64
Filed: 1982-11-04
Granted: 1986-04-22
Abstract: ABSTRACT OF THE DISCLOSURE            A composition to absorb mercury vapour and suppress the formation of the vapour.  The composition comprises a carrier liquid, for example water, an alcohol or glycol, copper ions, for example copper sulphate and thiosulphate ions, for example sodium thiosulphate.  The absorbent is efficient and clean in use.
Patent CA-1214638-A (CA)
Inventor: BRASS ROBERT L
IPC: F16B21/08
Filed: 1983-02-03
Granted: 1986-12-02
Abstract: S P E C I F I C A T I O N         TITLE:  TOY CONSTRUCTION SYSTEM HAVING               REUSABLE STRUCTURAL FASTENERS               AND INSERTION TOOL THEREFOR        INVENTOR:  ROBERT L. BRASS                ABSTRACT OF THE DISCLOSURE    A child's toy construction system, similar in purpose and use to "Erector" sets, is provided having reusable structural fasteners, instead of nuts and bolts.  It has a fastener insertion and removal tool which holds and controls the fasten-ers and provides a realistic tool-like feeling.    The system includes planar plates and bars to be joined. together to create different structures.  They  are joined by use of structural fasteners which are inserted through aligned holes in the plates and bars.    The fasteners are formed of molded plastic units generally cylindrical in form, having a head at one end (to be grasped and held by the insertion and removal tool) and two elastic, inwardly-distendable prongs or tines at the opposite end.  The outer surface of the tines has gripping "steps" positioned and dimensioned so as to enable the fastener to receive and hold either two or three plates.  The outer diameter of the fasteners along the prong portion (not including the steps) is approximately equal to the size of the holes in the plates and bars being joined.     Accordingly, the fasteners may be inserted into and removed from the holes by pressure which flexes the prongs inwardly so that the prongs and their steps may be extended into or removed from the holes.  An insertion tool is provided having means to grip the fastener head and conformingly hold the fastener by means of jaws so that the fastener may be inserted and removed from the holes.
Patent CA-1192235-A (CA)
Inventor: HALEWIJN HARRY J
IPC: G03B1/42
Filed: 1983-03-04
Granted: 1985-08-20
Abstract: Abstract of the Disclosure A bi-directional film transport device includes an upper and lower plate member having a separation gap between a first and second pair of drive rollers, the bytes of which are positioned adjacent the gap. A single drive motor is rigidly rotationally coupled to drive the first and second pair of drive rollers and the plate members function to eliminate the tendency of the film to buckle which in turn maintains the film in the proper plane of focus. As a result of this simple arrangement, complex clutch mechanisms which are otherwise employed to maintain tension during bi-directional operation have been elimi-nated. Side walls coupled between the plates parallel to the path of film travel prevent skewing of the film driven by the short low inertia high speed drive rollers.
Patent CA-1210491-A (CA)
Inventor: SHICHI MASARU
IPC: H01F27/18
Filed: 1983-03-15
Granted: 1986-08-26
Abstract: ABSTRACT OF THE DISCLOSURE     An electromagnetic inductor means such as a trans-former is improved by reducing the amount of condensable cooling liquid to a level approximating that actually needed to effect cooling; by injecting a resin into spaces between the casing and an insulating container surrounding the sides and bottom of the windings.
Patent CA-1191051-A (CA)
Inventor: GEYER ROBERT P
IPC: B61F5/14
Filed: 1983-04-12
Granted: 1985-07-30
Abstract: RESILIENT SIDE BEARING                       ABSTRACT OF THE DISCLOSURE         A constant contact resilient side bearing adapted to be positioned on a railroad car truck bolster and in constant contact with the underside of the car body for retarding movement of the car truck relative to the car body includes a housing adapted to be positioned on the bolster and which may, in some applications, be integrally cast with the bolster.  A pair of rollers are mounted within the housing for contact with the under-side of a car body, the rollers being arranged with their axes approximately parallel to the longitudinal axis of the bolster or generally having the roller axes intersect in the center of the center plate.  A resilient elastomeric pad is positioned within the housing and beneath the rollers.  The pad provides resistance to movement of the rollers responsive to relative rotation between the car truck bolster and car body underside.
Patent CA-1195920-A (CA)
Inventor: YILDIRIM ERDAL
IPC: E21B43/24
Filed: 1983-05-04
Granted: 1985-10-29
Abstract: ABSTRACT      Bitumen  is  recovered  from an underground tar sands (oil sands)  formation by an in-situ percolation process.          After drilling a borehole to the bottom of the tar sand formation,  the  hole  is  enlarged  by  radially  hydraulic jetting, with the resultant slurry being removed to the surface.  Then, the main body of the formation immediately surrounding  the  borehole  is  fragmented  and  slurried, forming  a  cell  or  chamber  for  in-situ  processing. system of small  diameter,  specially designed,  flexible, perforated  metal  pipes  is  then  introduced  through  the slurry mixture to the bottom of the chamber.  As designed, the pipes flare radially outward as they descend, result-ing in a set of pipes resting on or near the bottom of the chamber,  pointing  outwardly  from the central  pipe  like wheel  spokes.   Processing material,  such a hot alkaline water, is pressured through the pipe system and percolates upwardly through the slurry mixture, separating the bitu-men from the sand matrix.  The crude bitumen is collected at  the  top  of  the processed  slurry  and pumped  to  the surface, for further treatment.
Patent CA-1206727-A (CA)
Inventor: STEHNING WERNER
IPC: C01F11/46
Filed: 1983-05-26
Granted: 1986-07-02
Abstract: ABSTRACT OF THE DISCLOSURE     A scrubber is provided with a grate in its sump through which oxygen is introduced to separate the oxidation zone above this grate from a reaction zone below the grate, a calcium containing additive being introduced into this reaction zone.  Flue gas to be desulfurized is passed through a washing zone above the sump and there contacted with normally scrubbing liquid containing the additive to absorb sulfur dioxide and sulfur trioxide.  The sulfur dioxide is oxidized to sulfur trioxide and the additive induces precipitation of calcium sulfate in the sump.  After a prolonged standstill, settled solids in the sump are induced into movement by drawing a portion of the sump liquid from an upper part thereof and injecting it into a lower part of the sump.
Patent CA-1209589-A (CA)
Inventor: RATTON SERGE
IPC: B01J23/00
Filed: 1983-06-27
Granted: 1986-08-12
Abstract: ABSTRACT          "PROCESS FOR THE PREPARATION OF OPTIONALLY HALOGENATED                       ANILINES"          Process for the manufacture of an optionally halogenated aniline of the formula:                                        I   in which Y = halogen t R = H, alkyl (C1-C4 ) or alkoxy (C1-C4) and n = 0 to 5.      Halogenobenzenes of the formula:                                            II   in which Y, R and n are as above and X = halogen, are subjected to ammonolysis with aqueous ammonia solution, in the presence of copper and 8-hydroxyquinoline.          The process can be used, in particular, for the preparation of 3,5-dichloroaniline.
Patent CA-1249483-A (CA)
Inventor: MANCUSO PAUL
IPC: E06B3/46
Filed: 1983-07-07
Granted: 1989-01-31
Abstract: ABSTRACT OF THE DISCLOSURE           A sliding glass door assembly comprises a frame of rigid plastic, for example polyvinyl chloride, extruded in the form of a plurality of adjacent hollow sections.          The upright and horizontal frame members are attached together by screws extending horizontally through the upright members into longitudinally extending screw bosses in the horizontal frame members.  The frame members include depending guides for supporting door panels, at least one of which slides open and closed. The door panels are formed of vertical and horizontal sash members which support at least one, but preferably several, glass panels.  The sash members are also formed of plural hollow sections that cooperate for strength, and are attached by screw bosses.  Preferably, the screw bosses in the sash of the moveable panel or panels are contained in the upright sash members, and preferably each upright sash member has a pair of screw bosses for attaching not only the lower sash member, but also for attaching roller elements at each end of the moveable sash.  The roller elements are supported on a track held in the lower horizontal frame member.