baber/WOPTO huggingface dataset:
Patent CA-1119223-A (CA)
Title: Multiple cantilever spring contact  switch
Inventor: KUHFUS GERD
IPC: H01H1/58
Filed: 1980-06-02
Granted: 1982-03-02
Abstract: MULTIPLE CANTILEVER SPRING CONTACT SWITCH          Abstract of the Disclosure A multiple cantilever spring contact switch has a base, a housing and a cap.  A plurality of pairs of contacts are mounted in the base and the housing fits over the base and contacts.  A cap is mounted for movement up and down on the housing and has a plurality of cam members which extend through slots in the housing aligned with the contacts.  The cap is resiliently biased upward, and downward pressure on the cap moves the cap downwards and the cam members slide down the slots and actuate one contact of each pair.  The contact pairs can be normally open or normally closed, or combinations thereof, and actuation of the one contact by a cam member changes the condition of the contact pair.                             - i -
Patent CA-1138215-A (CA)
Inventor: STOVER KENNETH W
IPC: A47J31/06
Filed: 1980-06-12
Granted: 1982-12-28
Abstract: Case 790710 BREWING FUNNEL Kenneth W. Stover Abstract of the Disclosure A funnel is disclosed for use in brewing beverages such as coffee, tea and the like and for discharging the beverage into either of a plurality of spaced reservoirs below the funnel. The funnel includes an upstanding side wall, a bottom wall, and flow channel means associated with the bot-tom wall which communicates between the interior of the fun-nel and a discharge port spaced from the center of the funnel for selective discharge of liquid into alternate reservoirs by turning the funnel. Stop means provided at a selected radial position on the funnel cooperate with limiting switches or the like on the brewing machine to prevent brewing unless the funnel is in the proper location for discharge into a reservoir.
Patent CA-1141082-A (CA)
Inventor: KECK MAX H
IPC: C08G63/181
Filed: 1980-07-11
Granted: 1983-02-08
Abstract: Abstract LINEAR COPOLYESTERS containing TERTIARY BUTYL               ISOPHTHALIC ACID Novel compositions of matter comprising polymethylene terephthalate t-butyl isophthalate copolyesters wherein the t-butyl isophthalate repeating units range from 1 to 50 mole percent and the ethylene terephthalate repeating units range from 99 to 50 mole percent, said percentages being based on the sum of the moles of ethylene terephthal-ate and t-butyl isophthalate repeating units in said compositions.
Patent CA-1146486-A (CA)
Inventor: EPPERSON CHARLES N
IPC: B65D21/02
Filed: 1980-08-01
Granted: 1983-05-17
Abstract: TWO-WAY NESTING CONTAINER FOR LIQUIDS     Abstract of the Disclosure A container for liquids having a vertical pouring spout at the upper end thereof and adjacent the side thereof, a recess in the bottom of the container for receiving the spout of a lower container when two or more containers are stacked in an upright nesting condition, and a recess in the top of the container in spaced relation to the spout for receiving the downwardly projecting spout of a super-imposed inverted container while the spout of the given container is simultaneously received in the recess in the top of the inverted container.
Patent CA-1136817-A (CA)
Inventor: JANSSEN HARALD
IPC: H01B13/14
Filed: 1980-09-11
Granted: 1982-12-07
Abstract: Abstract An improved method of producing enamel-insulated winding wire is disclosed which comprises extruding around a conductor wire a coating of a partly crystalline thermoplastic having a crystallite melting point above 170°C and comprising an aromatic polyether ketone of the formula:                       wherein each Ar may be the same or different and represents an aromatic radical and n signifies a whole number between 50 and 200.  The product exhibits improved softening temperature meeting industry standards, as well as satisfactory heat-shock values and surface hardness.
Patent CA-1135216-A (CA)
Inventor: ISHIZUKA HIROSHI
IPC: C25C3/04
Filed: 1980-09-22
Granted: 1982-11-09
Abstract: TITLE OF INVENTION:      IMPROVEMENT IN AN APPARATUS FOR ELECTROLYTIC PRODUCTION OF MAGNESIUM METAL FROM ITS CHLORIDE            ABSTRACT: The present invention provides an apparatus for electrolytic production of magnesium metal from its chloride, which apparatus essentially comprises at least one externally unwired electrode which is made of graphite alone or graphite-iron composite and is placed between each pair of anode and cathode with the graphite side towards the cathode.  The apparatus preferably comprises further a cooling passage for electrolyte bath which allows the electrolyte bath to flow outside an electrolysis chamber where the electrodes are contained, from a bath surface level to the bottom   The bath, while it passes there, is cooled a little, not enough to solidify, to exhibit an increased density so that it flows down back into the electrolysis chamber at the bottom, thus forming a continuous upflow along the electrodes, which facilitates separation of products of magnesium metal and chlorine gas and their recovery.  Preferred anode construction is also illustrated.
Patent CA-1148341-A (CA)
Inventor: KAWACHI MASAO
IPC: C03B37/014
Filed: 1980-09-22
Granted: 1983-06-21
Abstract: ABSTRACT OF THE DISCLOSURE       A method of fabricating a single-mode optical fiber pre-form wherein a core torch produces fine glass particles eccentri-cally with respect to the center area of a flame stream, the core torch being so arranged as to blow the flame stream at an angle inclined to a seed rod.  The porous glass body forming the core is grown on one end of the rod and in the direction of the axis of the rod.  A cladding layer is formed on the periphery of the porous glass core body by at least one torch for forming the cladding.          The obtained porous glass body is heated and vitrified into a transparent glass body, which is sealed in a silica tube for jacketting to form a single-mode optical fiber preform.  At least one exhaust port is disposed with a distance of 1 mm to 50 mm from the periphery of the porous glass body and in the vicinity of the growing surface of the glass body to exhaust residual glass fine particles and undesired gases.  A porous glass body having a dia-meter of 20 mm or less is easily formed.  Single-mode optical fiber having a cladding-to-core-diameter ratio of 3 or more is fabricated by the VAD method.  Accordingly, a long-length and low-loss single-mode optical fiber is mass-produced.
Patent CA-1150544-A (CA)
Inventor: HUGUES EDGARD A
IPC: G02B9/00
Filed: 1980-10-01
Granted: 1983-07-26
Abstract: PHF 79571                34                     15.9.80 ABSTRACT: Objective comprising aspherical surfaces, whose focal length is variable over a wide range.     The objective comprises movable groups of len-ses and at least one stationary group of lenses, at least two of said groups including an aspherical surface. The movable groups are constituted by single lenses of which at least one lens comprises an aspherical surface, whilst the stationary group(s) may comprise at least one aspherical surface. Steadiness of the image plane is ob-tained by mechanical compensation for focal-length varia-tions with a ratio greater than five, which may readily reach the value eight. The aspherical lenses are arranged so that for the same focal length variation the total number of lenses of the objective, which may be spherical or non-spherical, is smaller than in any other variable-focus objective with a stationary image plane comprising solely spherical lenses:          This results in a reduction of the mass of the objective, namely of the movable parts, and a reduction of the power necessary for moving said parts.          Application to colour television camera.
Patent CA-1158491-A (CA)
Inventor: BRINKS WILLEM
IPC: A01L15/00
Filed: 1981-02-20
Granted: 1983-12-13
Abstract: ABSTRACT OF THE DISCLOSURE      This invention provides a hand held apparatus for trimming the claws or hoofs of animals.  The apparatus com-prises a housing; a drive means mounted in the housing and having a rotating output shaft; a trimming member coupled to the output shaft and being formed as a milling cutter; a generally annular head surrounding the trimming member and having an end face; means for fastening the head on the housing permitting movement of the head along the axis of rotation of the trimming member; and concentric spring means surrounding the shaft for resiliently biasing the head away from the housing so that the end face of the head is flush with the end of the milling cutter and for allowing the head to tilt along any one of a plurality of planes with respect to the milling cutter responsive to pressure exerted against the claw or hoof to expose the cutter.  The invention avoids disadvantages encountered with prior art devices in which a chip removing member is provided with which a long, sub-stantially maintenance-free operating time is possible, without the chip removing member getting clogged.
Patent CA-1159244-A (CA)
Inventor: DRAKE CYRIL F
IPC: C03C3/17
Filed: 1981-03-25
Granted: 1983-12-27
Abstract: ABSTRACT OF THE DISCLOSURE      A corrosion inhibiting material comprises a water soluble glass of the calcium oxide/phosphorus pentoxide type which, when in contact with water, releases phosphate ions which inhibit corrosion of adjacent metal surfaces. The glass solubility may be controlled by the incorporation of one or more glass modifying oxides. Advantageously the glass is finely ground and then dispersed in a resin carrier to form a primer paint formulation.      The preferred glass forming region of a typical calcium oxide/phosphorus pentoxide system is illustrated in the ternary phase/composition diagram of Fig. 1 of the accompanying drawings.
Patent CA-1157662-A (CA)
Inventor: MENASHI JAMEEL
IPC: C22B7/00
Filed: 1981-03-30
Granted: 1983-11-29
Abstract: PARTITIONING OF REFRACTORY METALS FROM OXIDATION RESISTANT SCRAP ALLOY            ABSTRACT OF THE DISCLOSURE            Alloy scrap containing refractory metals such as chro-mium, molybdenum, tungsten, vanadium, niobium and tantalum and base metals such as nickel, cobalt, copper and iron are treated to partition the refractory metal values from the base metal values without an energy intensive remelting step.  The scrap in finely divided form is calcined in the presence of an oxygen con-taining gas and a member of a certain group of alkali metal salts at a temperature in the range of 800°C to 1150°C for 1/4 hour to four hours.  This treatment converts the refractory metals to alkali metal molybdates, tungstates, chromates, vanadates, nioba-tes and tantalates and the base metals to oxides.  The calcined product may then be water leached to produce a substantially base metal-free liquor rich in refractory metal values.  Both the refractory and the base metal values may be subsequently reco-vered by conventional hydrometallurgical techniques.
Patent CA-1169537-A (CA)
Inventor: ENGEL JOSEPH C
IPC: H01H75/00
Filed: 1981-04-06
Granted: 1984-06-19
Abstract: 28                  47,128 ABSTRACT OF THE DISCLOSURE A circuit interrupter includes a trip unit consisting of a microcomputer, current transformers for sensing current flow through the interrupter, an A/D converter to supply digital values of current flow for use by the microcomputer, and an inter-changeable plug-in read-only memory chip removably inserted in the front panel of the interrupter for storing parameters of the time-current tripping characteristics of the circuit interrupter.
Patent CA-1163514-A (CA)
Inventor: WENK ROLF A
IPC: A61B17/80
Filed: 1981-04-08
Granted: 1984-03-13
Abstract: ABSTRACT     A bone compression plate is provided with several sliding slits for countersunk bone screws having ball heads in the longitudinal dimension of the plate.  Each sliding slit is countersunk in its end area opposite the fracture, the depth of which countersinking in the plate determines the final axial position of the screwhead.  That depth is greater than that of the rest of the sliding slit. The bearing surface of the countersinking for the screwhead extends over an area which is included within an angle of more than 180°.  It is thus possible, on the one hand, to move the plate with respect to the pieces of fractured bone to obtain a pressing together of the two pieces of bone when the bone screw has not been screwed tight.  On the other hand, it is possible to fasten the plate immovably to one piece of the fractured bone by inserting a bone screw into the counter-sink slit.  Pressing of the pieces of bone fragment together -can be accomplished automatically by means of chamfering pro vided on the ball head of the countersunk bone screw in the area at the opposite end of the sliding slit.  Deeper counter-sinking provided in the end area containing the original countersunk depression makes possible the positioning of the countersunk bone screw at an oblique angle.
Patent CA-1162258-A (CA)
Inventor: CASCIOTTI ALBERT
IPC: H01R13/66
Filed: 1981-04-16
Granted: 1984-02-14
Abstract: ABSTRACT An improved solderless filter mounting for header assemblies or feed-through connectors is described for retrofitting  filtered terminals into an existing electronic circuit.  Each of a plurality of terminals is provided with a filter sleeve which is soldered thereto.  The filtered terminal assemblies are inserted into a header housing in a fixed array with the filters being electrically connected to a ground plane by means of a conductive rubber gasket. Rubber mounting blocks are positioned on the filters and pins to each side of the ground plane and the conductive rubber gasket and are placed under com-pression by housing members to cause an electrical interconnection between the filters and the ground plane through the gasket while absorbing any shock that may be imparted to the filters from the pins.  The housing members are iden-tical and are provided with polarizing means, latching means, and the like, as necessary.
Patent CA-1158063-A (CA)
Inventor: KARR LAWRENCE J
IPC: G01K7/00
Filed: 1981-05-04
Granted: 1983-12-06
Abstract: TIME-TEMPERATURE INDICATOR                              ABSTRACT          This invention relates to time-temperature indication apparatus.  The shelf life in many products, including food, drugs, and photographic and X ray film is determined by the ambient temperature to which the product is exposed.  Time-temperature indication by chemical means is known; however, such indicators are played over a relatively narrow temperature range or tend to have only two operable states.  In any event, they do not accur-ately follow the actual shelf life of such products which tends to be a continuous function of ambient temperature and time.  The disclosed invention accomplishes time-temperature indication by generating an electrical current having an amplitude-temperature relationship thus proportional to the reciprocal of the time-temperature relationship characteristic of a substance to be monitored.  The current is integrated and an indication is given when the integrated current reaches a predetermined value, to signal a change in the characteristic of the substance being monitored.  The disclosed indicator includes a galvanic cell having a cell component that is consumed as electrical current is drawn from the ceil.  In effect, the consumable component serves as an integrator of the current drawn from the cell which is made dependent upon temperature by an electrical circuit.  The indicator is actuated when a predetermined percentage of the component is consumed.
Patent CA-1154464-A (CA)
Inventor: SATO KIMIHIKO
IPC: C07C15/08
Filed: 1981-07-24
Granted: 1983-09-27
Abstract: ABSTRACT OF THE DISCLOSURE In a process for producing p-xylene which comprises catalytically methylating toluene with a methylating agent in the gaseous phase, the improve-ment wherein (a) said methylation is carried out continuously in a multi-stage reaction system consisting of a plurality of separate series-connected fixed catalyst layers without separating the resulting xylenes in an intermediate stage, (b) said toluene is fed together with hydrogen gas into only the first-stage fixed catalyst layer and passed successively through the subsequent fixed catalyst layers, the amount of toluene fed being such that the total weight hourly space velocity of toluene is from 1 to 300 hr-1, (c) said methylating agent is fed into each of said fixed catalyst layers, if desired together with hydrogen gas, the amount of the methylating agent fed into each catalyst layer being 0.01/t moles to l/t moles, in which t is the number of methyl groups in the methylating agent, per mole of toluene fed into the first-stage catalyst layer, and the total amount of the methylating agent: fed into all of the cata-lyst layers being within the range of 0.1/t moles to 2/t moles, in which t is as defined, per mole of toluene fed into the first-stage catalyst layer, and (d) each fixed catalyst layer is filled with a catalyst composed of a crystal-line aluminosilicate containing magnesium oxide or lanthanide oxide.
Patent CA-1174548-A (CA)
Inventor: BERRY PETER W
IPC: A61L15/42
Filed: 1981-07-29
Granted: 1984-09-18
Abstract: ABSTRACT      Moisture vapour transmitting elastic bandages which comprise an inner layer of fabric and an outer layer of fabric bonded to a central layer characterised in that the central layer comprises an elastomeric film are described.
Patent CA-1164161-A (CA)
Inventor: JAHN ALEX K
IPC: D06M13/292
Filed: 1981-08-18
Granted: 1984-03-27
Abstract: ABSTRACT OF THE DISCLOSURE            Anti-soiling properties are imparted to fibers by applying thereto an effective amount of the neutralized phosphate ester of an aliphatic alcohol having from 12 to 22 carbon atoms in the chain.
Patent CA-1179021-A (CA)
Inventor: KONDO SHIGEKI
IPC: H05B6/12
Filed: 1981-09-18
Granted: 1984-12-04
Abstract: Abstract An electromagnetic cooking device has a resonance circuit composed of a heating coil and a capacitor; an inverter circuit including a switching transistor and a diode connected across the collector and the emitter of the switching transistor in the reverse direction.  The resonance circuit and inverter circuit are connected in series across a DC power source.  A start-signal generating circuit periodically develops a start pulse signal.  A stop-signal generating circuit receives the value of the current flowing through the heating coil as an input signal and develops a stop pulse signal when this value becomes zero.  A driving circuit is coupled to the inverter circuit.  The start-signal generating circuit and the stop-signal generating circuit receive the start pulse signal and the stop pulse signal as inputs and develop a signal for rendering the switching transistor conductive after the appearance of the start pulse signal and until appearance of the stop pulse signal.  As a result the maximum voltage impressed on the switching transistor can be kept to a desirably low level, while the operation is stable and reliable.
Patent CA-1175524-A (CA)
Inventor: DAVIES RONALD C
IPC: G05B1/02
Filed: 1981-10-07
Granted: 1984-10-02
Abstract: ABSTRACT OF THE INVENTION The present invention provides a single coin acceptor or rejector for use with coin-operated machines, which has an oscillator circuit and a sensing coil, wherein the oscillator oscillates at a constant ampli-tude, and has sufficient gain that it will continue to oscillate at such constant amplitude when a coin is placed within the sensing coil. A field effect transistor (F.E.T.) which is utilized in the circuit becomes in effect a vari-able resistor, the value of which is controllable by materials passing through the sensing coil. Such effective resistance changes are detected by a resistor cGnnected in series with the F.E.T. and which functions as a current to voltage converter.By two pairs of comparators and associ-ated circuitry an opto isolator is activated if the output of one comparator of the second pair goes high while the output of the other comparator of the same pair remains low; and when activated the opto isolator triggers a triac which, in turn, activates the accept armature of an accept solenoid. Non-genuine coins do not activate the opto isolatorand, in turn, the triac, and such coins are re-jected. The coin acceptor or rejector apparatus has a flapper with a flange at its lower end disposed in a slot in the coin chute, said flapper being movable by a solenoid out of said slot to accept genuine coins, and when in the slot to direct non-genuine coins to rejection.
Patent CA-1168679-A (CA)
Inventor: BRON DAN
IPC: A62C37/08
Filed: 1981-12-18
Granted: 1984-06-05
Abstract: ROTARY SPRINKLER                 ABSTRACT OF THE DISCLOSURE There is provided a pressure-regulated, rotating percussion sprinkler.  The sprinkler comprises a two-part housing, a pressure-regulating, elastically stretchable diaphragm dividing the interior of the two-part housing into a substnatially peripheral inlet chamber, and a central outlet chamber.  The inlet chamber is provided with an inlet connector.  The underside of the diaphragm is accessible to the pressure prevailing in the inlet chamber.  There is also provided at least one substantially tangentially oriented passageway connecting the peripheral inlet chamber and the central outlet chamber, and an inverted cup-like rotor.  The rotor comprises a hollow shaft rotatably mounted in a first part of the two-part housing, and a tubular projection substantially aligned with the hollow shaft and extending inside the rotor.  The cup-like rotor has a substantially annular peripheral wall, the inner surface of which is provided with at least one discontinuity constituted by a sudden and transient change of curvature and, in operation, serves as a race for at least one spherical mass freely movable in the space delimited by the diaphragm and by the inside of the cup-like rotor.  The bore of the hollow shaft terminates on the outside of the two-part housing in at least one relatively narrow nozzle-like opening producing a sprinkling jet.  A flow of water introduced through the inlet connector enters the central outlet via the tangentially oriented passageways producing a vortex flow and exits the outlet chamber via the hollow shaft and the nozzle-like opening.  The vortex flow entrains the spherical mass imparting to it an orbital movement upon and along the race, whereby, upon encountering, prior to being carried by its angular momentum over, the transient discontinuity, the spherical mass imparts an impulse-like, limited angular motion to the rotor, and, thereby, to the sprinkling jet.
Patent CA-1187869-A (CA)
Inventor: WHITE ABRAHAM
IPC: C07K14/655
Filed: 1981-12-21
Granted: 1985-05-28
Abstract: ABSTRACT OF THE DISCLOSURE     Novel peptides of the formula:                                             (I) wherein:    A, A' and A" are each independently Gly, D-Ala, D-Leu, or D-Trp, wherein A may optionally be N-alkylated or N-acylated;    B is Pro, .DELTA.3-Pro, Thz, or diMeThz;    C and C'are each independently Thr, Ser, Val, or alloThr;    D is Glu, Gln, Asp, or Asn;    R is hydrogen, or is lower alkyl or lower acyl, substituted for one of the hydrogens on the .epsilon.-amino group of the lysyl residue;    X is Cys, Ala, ABU, or Cys(Me); and Y is selected from the group consisting of hydroxy, Pro, Pro-Leu, and Pro-Leu-Met, -NH2, ProNH2, Pro-LeuNH2 and Pro-leu-MetNH2; and the pharmaceutically acceptable salts thereof, are useful for increasing immunologic competence.  Methods for preparation of the peptides are also described.