baber/WOPTO huggingface dataset:
Patent CA-1109357-A (CA)
Inventor: FOLLETT JOHN L
IPC: F16K17/28
Filed: 1978-12-04
Granted: 1981-09-22
Abstract: INVENTION OF:  JOHN L. FOLLETT          FOR:  AUTOMATIC SHUT-OFF VALVE AND METHOD OF OPERATION THEREOF                  ABSTRACT OF THE DISCLOSURE         A valve having a closure element in the form of a tapered plug normally maintained by gravity on a vertical rod extending loosely into a bore in the plug.  Flow of fluid through the valve in excess of a predetermined rate acts on a flow-responsive surface of the plug to move the latter into engagement with a valve seat, thus blocking further flow.   The construction is particularly suited to close control of the flow rate at which closure of the valve occurs.  The size, shape, weight and position of various elements influences the magnitude of the flow rate required for closure and may be tailored to effect closure repeatedly at a virtually exact desired flow rate.  One embodi-ment includes means for selectively changing the shape of the flow-responsive surface, and thereby the flow rate at which closure occurs.  In the preferred embodiment, the closure element is retained in the closed position by a permanent magnet until intentionally reset by external means, such as the application of a back pressure from the downstream side of the closure element sufficient to overcome the magnetic attraction, The invention also resides in the method of operating the preferred embodiment of the valve by effecting reset with application of back pressure from external means.
Patent CA-1097333-A (CA)
Inventor: MCENERY JAMES O
IPC: E21B10/00
Filed: 1979-01-11
Granted: 1981-03-10
Abstract: ABSTRACT OF  DISCLOSURE            The invention concerns down-the-hole drilling, where there is a persistent problem in providing an adequately controlled flow of flushing fluid to the face of the drill bit.  In known down-the-hole drills turbulence and closed circuits of the flushing fluid tend to erode the bit and reduce its lifespan,  The invention seeks to lessen these drawbacks by providing for the flow of flushing fluid to be divided into a component directed along a first cavity which terminates at the face of the bit and another component directed along a second cavity which terminates above the face and is deflected up the drill hole.  Weakening of the bit is avoided if there is at most one bore through the bit for flushing fluid.
Patent CA-1070216-A (CA)
Title: Pump jack assembly for wells
Inventor: CARLSON JOHN C
IPC: F04B47/04
Filed: 1979-02-22
Granted: 1980-01-22
Abstract: PUMP JACK ASSEMBLY FOR WELLS       ABSTRACT OF THE DISCLOSURE          One pair of actuating piston and cylinder assem-blies are operatively connected to the polish or sucker rod of the pump and are extended or retracted by hydraulic fluid.  A further pair of piston and cylinder assemblies are operatively connected to the polish rod and are opera-tively connected on the underside thereof to an accumulator that includes an inert gas over oil with the gas being sup-plied under adjustable control conditions from a cylinder or source of high pressure gas so that these further pair of piston and cylinder assemblies counteract the weight of the pump system.  On the downstroke, pressure is supplied to the upper sides of all four piston and cylinder assemblies with the two further piston and cylinder assemblies supporting the weight via the accumulator.  The gas pressure is adjustable to support the desired proportion of the weight of the pump assembly and the oil being pumped thereby and other accumula-tors are provided in the circuits to cushion the shock load at either end of the stroke of the pump.  Automatically ope-rated switch valves and adjustable flow dividers control the oil flow to the piston and cylinder assemblies at either end of the stroke and the speed of the stroke respectively.
Patent CA-1110295-A (CA)
Inventor: KENNEDY LEROY P
IPC: B60T15/00
Filed: 1979-03-06
Granted: 1981-10-06
Abstract: LEROY P. KENNEDY                FOR:  RAILROAD AIR BRAKE SYSTEMS     ABSTRACT OF THE DISCLOSURE           Brake system for a railroad vehicle in which the angle cocks and cut-off valve are eliminated and supplanted by a single valve assembly in a valve housing positioned at the junction of the brake pipe and branch pipe; the valve element is in the form of a selectively positionable seal support member carried on a shaft which may be operated from a safe position at either side of the vehicle; a positive lock holds the position of the valve element and is designed to discourage vandalism.
Patent CA-1117670-A (CA)
Inventor: RICHMAN JAY L
IPC: H04J3/00
Filed: 1979-04-03
Granted: 1982-02-02
Abstract: Disclosure 245-770060 PORTABLE MULTIPLEX BUS EXCITER                 ABSTRACT OF THE DISCLOSURE      A portable multiplex bus exerciser for exercising any digital communications multiplex bus having a system under test which is of the command/response type.  A command word and an optional data word, programmable as to address, message length, and data content, are applied to either of two multiplex buses.  By examining the activity of a bus line (or lines) the responses of the system under test can be analyzed to determine its operational readiness.
Patent CA-1130687-A (CA)
Inventor: WU YEONGCHI
IPC: A61F5/44
Filed: 1979-09-04
Granted: 1982-08-31
Abstract: Case 3353 IMPROVED DISPOSABLE URETHRAL CATHETER ASSEMBLY            Abstract of the Disclosure A disposable urethral catheter assembly includes a flexible bag in which a number of chambers are defined by barriers. In an upper chamber, a catheter is contained in a sterile environment. When the catheter is inserted through the urethra into the bladder, the fluid flows into the bag through the upper chamber and into a lower sample chamber, excess fluid being collected in the upper chamber. After cath-eterization a one-piece element which provides a sealable passage-way through the first barrier between the upper and lower chamber can be readily closed by manipulation through the wall of the bag and thus isolate the sample in the lower chamber. The upper chamber, its contents and the catheter are separated from the sealed lower chamber and discarded. The lower sample chamber which provides a sterile environment for its contents can then be sent to a laboratory for analysis and culture.
Patent CA-1144432-A (CA)
Inventor: ARCILESI DONALD A
IPC: C23C18/28
Filed: 1979-09-20
Granted: 1983-04-12
Abstract: Abstract of the Disclosure A process for treating a polymeric plastic substrate to render it receptive to electroless plating including the steps of etching the substrate, rinsing and activating the etched substrate with an acidic tin-palladium complex, rinsing and thereafter accel-erating the activated substrate employing an improved aqueous accelerating solution containing an aqueous soluble compatible substituted alkyl amine.  The improved accelerating solution is stable, easy to control, tolerant to metallic impurities present in the solution, inhibits rack plating and is of versatile use.
Patent CA-1110925-A (CA)
Inventor: MAEKINEN EERO
IPC: B63H5/16
Filed: 1979-09-25
Granted: 1981-10-20
Abstract: ABSTRACT            A vessel, in particular a ferry, intended for use in ice-filled waters, is provided with a propeller guard having the form of a rigid grid construction and being arranged to enclose one or several propellers acting in the front part of said vessel and/or below the keel line of said vessel.  The width of the guard at its upper edge at the hull of the vessel is at least substantially equal to the greatest  width of the guard.  At its front end, the guard has an oblique front edge which, in a longitudinal section, is at least to its major part, inclined relative to a horizontal plane at the most 50°, preferably at the most 45°.
Patent CA-1141438-A (CA)
Inventor: SMITH WALLACE E
IPC: B23K11/10
Filed: 1979-10-05
Granted: 1983-02-15
Abstract: WELD NUT;                   ABSTRACT         A weld nut for use in securing a fastener to a sheet of supporting material.  The weld nut com-prises a triangular-shaped plate with truncated vertices. The plate has a mating surface from which are raised first, second and third integral projections.  Each of the integral projections has a frusto-conical body with a rounded top and is surrounded by an annular channel to contain the flow of the material forming the projection when the nut is welded to the supporting material.  Each channel preferably intersects an adja-cent truncated end to permit the formation of an external fillet.
Patent CA-1105668-A (CA)
Inventor: CHALPIN STEPHEN F JR
IPC: E04D13/04
Filed: 1979-10-11
Granted: 1981-07-28
Abstract: Title of the Invention GUTTER SYSTEM FOR SKYLIGHTS         OR THE LIKE                   Abstract of the Disclosure A gutter system for skylights or the like which includes a formed or extruded primary gutter and a channel connector shop welded across the primary gutter at locations where a secondary gutter is desired.  A secondary gutter is nested in the connector and is attached thereto.  The channel connector has a drain hole defined therein for conducting water from the secondary gutter to the primary gutter.
Patent CA-1132123-A (CA)
Title: Initiator compositions for vinyl chloride  polymerization
Inventor: KAMATH VASANTH R
IPC: C08F14/06
Filed: 1979-10-19
Granted: 1982-09-21
Abstract: ABSTRACT      In vinyl chloride polymerization, the rate of polymeriz-ation is significantly increased by using an organic azo or peroxide free-radical initiator composition containing about 4.0 to 30% by weight based on the initiator of an alkyl or aralkyl alcohol of 8 to 20 carbons.
Patent CA-1139010-A (CA)
Inventor: OLSZEWSKI EDWARD J
IPC: H04Q1/02
Filed: 1979-10-23
Granted: 1983-01-04
Abstract: TELEPHONE LINE CUTOVER APPARATUS AND SWITCH          Abstract of the Disclosure A manual cutover apparatus activates a plurality of circuit boards in an equipment frame in a telephone switching facility.  Each circuit board is provided with a manually operable switch for inhibiting the function of the circuit or disabling a line termination at the circuit board, while the switch is in contact with an elongated control member. The control member spans the board locations in the frame and is held in place by slots in a connector shroud at each board position.  When the frame is empty of circuit boards, the control member is inserted into slots in the equipment frame.  After the required circuit boards are placed in the frame, these boards are activated by the withdrawal of the control member through a hole in a frame member at one end of the frame.  The switch includes a base with a pair of terminals and a cantilever spring switch member extending over a groove in the base.  As the circuit board is inserted into the frame the control member is received in the groove, displacing the switch member and effecting switching between the terminals.          --
Patent CA-1135602-A (CA)
Inventor: HOWELL GEORGE D
IPC: C23F11/00
Filed: 1979-12-06
Granted: 1982-11-16
Abstract: "ZINC RINSE FOR METAL COMPONENTS"                 Abstract of the Disclosure Zinc sealant rinse for phosphatized metal components to improve corrosion resistance and paint adhesion.
Patent CA-1169227-A (CA)
Inventor: SUZUKI HARUO
IPC: B22D17/00
Filed: 1980-02-07
Granted: 1984-06-19
Abstract: ABSTRACT OF THE DISCLOSURE         A die-casting method in which a molten metal is injected into a die cavity 30 through a runner 31 and the molten metal in the die cavity is pressurized and squeezed also through a squeeze passage 17 which is communicated with the die cavity 30 at a point other than the point of connection of the runner with the die cavity.          The timing of commencement of the squeeze effected through the squeeze passage 17, squeezing pressure and the amount of molten metal squeezed out of the squeeze passage 17 into the die cavity 30 are suitably determined so that the formation of cavities or voids which adversely affect the strength and gas-tightness of die-cast product is remarkably decreased to assure a reliable manufacture of voidless die-cast products without substantial fluctuation of quality.  The method of the invention can effectively be applied to the manufacture of die-cast products which are required to have high gas-tightness or intended for use under high pressure, and thus can be used to die-cast housings of compressors, pumps, etc.
Patent CA-1099862-A (CA)
Inventor: THOMPSON ALBERT N
IPC: A46D1/00
Filed: 1980-02-11
Granted: 1981-04-28
Abstract: ABSTRACT               A curling broom of the push-broom type has the active bottom surface provided with a fabric coating replacing the usual natural or artificial bristles. Preferably, two types of fabric are applied one beside the other, differing from each other in coarseness.  The generally flat active surfaces of the fabrics are vertically spaced from each other and one of the surfaces is preferably inclined relative to the other whereby a selective combination of polishing and buffing action can be achieved by simply tilting the handle of the broom.  The invention improves the action of the broom, reduces the manufacturing costs, virtually eliminates some contamination of the ice surface and greatly extends operation life of the device.  A   separate, detachable plate for use in the broom is also disclosed.
Patent CA-1136466-A (CA)
Inventor: BERTELS AUGUSTINUS W M
IPC: E01C11/16
Filed: 1980-02-15
Granted: 1982-11-30
Abstract: A B S T R A C T            A reinforced asphalt layer, consisting of an asphalt-forming mixture of bitumen with mineral particles, in which is embedded a reinforcing network of elongated reinforcing elements which, where they intersect one another, have a connection to one another. which at least to a certain degree fixes the cross-bond, in which the reinforcing elements at least locally have a cross-section of maximum linear dimension of the order of the particle size, and a shape such as to exhibit a change of direction longitudinally from location to location of their engagement of the surrounding material of the layer, the arrangement being such that in a finished, rolled asphalt layer the reinforcing elements have adjusted locally to the mineral particles by deformation, on the one hand, and the reinforcing network has largely retained its elasticity, on the other.
Patent CA-1128468-A (CA)
Inventor: PARENT DANIEL
IPC: B65D39/12
Filed: 1980-02-22
Granted: 1982-07-27
Abstract: ABSTRACT OF THE DISCLOSURE     The invention relates to a contractable closure member for sealing an open-ended container.          The closure member comprises a top wall formed of a rigid material and an elastic bottom wall formed of a flexible material and having an upwardly extending continuous side wall.  The side wall has a seal formed integral therewith, and this wall is securable to the top wall whereby the bottom wall is held in spaced relationship with the top wall.  A retracting lever is pivotally secured in the top wall and has an engagement end and a pusher end.  The pusher end is arcuately displaceable against a central portion of the bottom wall to distend the bottom wall whereby at least a portion of the side wall will be drawn inwardly to remove sealing pressure when positioned for sealing engagement in an open-ended container.
Patent CA-1140916-A (CA)
Inventor: KEMP JOHN E G
IPC: C07D499/32
Filed: 1980-05-15
Granted: 1983-02-08
Abstract: ABSTRACT            Title:   "Penicillins"   6-? and 6- ? -substituted penicillanic acid derivatives of the formula:               --- (I) wherein R is H or a conventional penicillin carboxy protecting group or an ester forming residue readily hydrolysable in vivo and R1 is a perhaloalkyl group of from 1 to 4 carbon atoms wherein the halogen atoms are fluorine or chlorine, undergo SN2 nucleophilic displacement with inversion of configuration at C-6 to yield the corresponding 6- .beta. or 6- ? -substituted product.  The compounds are therefore valuable intermediates particularly for the preparation of 6- ?-halo-penicillanic acid derivatives.
Patent CA-1108718-A (CA)
Inventor: KLEY VICTOR B
IPC: G08C21/00
Filed: 1980-05-20
Granted: 1981-09-08
Abstract: ABSTRACT OF THE DISCLOSURE          In a resistive planar graphic device, conductor strips are divided into two segments and corner resistances interconnect outer ends of the conductor strips which extend in spaced relationship along the edges of a rectangular resistive area and which are connected by edge connecting and isolating resistances to the edges of the rectangular area.  The corner resistances are selected to improve the linearity of voltage gradients in the rectangular area.
Patent CA-1135358-A (CA)
Inventor: MARSH EDWARD K
IPC: H01R13/10
Filed: 1980-05-22
Granted: 1982-11-09
Abstract: ABSTRACT           An electrical connector assembly (10) having an improved electrical contact (12) that includes an inner drawn holder (22) and an outer drawn sleeve (20) and a method of making the assembly (10) is disclosed. A bunch of electrical conducting fine wires (24) are axially aligned and crimped within an end portion (27) of a passage (25) which extends completely through the holder (22) such that the wires (24) extend beyond one end (26) of the holder (22).  The opposite end (4 ) of the holder (22) is adapted to receive a wire (54) stripped of insulation (55) so that the end (56) of the wire (54) engages the opposite end (52) of the wires (24) in electric circuit relationship therebetween. The outer sleeve (20) also has an axially extending passage (21) extending completely therethrough.  The end portion (40) of the passage (21) of the sleeve (20) has a cross-sectional area larger than the cross-sec-tional area of an interior portion (38) of the passage (21) to permit the spreading of the wires (24) in the end portion (40) of the sleeve passage (21).  The elec-trical contact (12) is releasably secured within an insert (14) which includes integrally formed, radially deflectable contact retaining fingers (18) to secure the contact (12) in the insert (14) about a flared annular retaining shoulder (58).
Patent CA-1140357-A (CA)
Title: Code type lock
Inventor: LYNG BJOERN LAS TORRES TACO AP
IPC: G08B13/00
Filed: 1980-06-06
Granted: 1983-02-01
Abstract: Abstract of the Disclosure A locking system suitable for use in a safe has locking and unlocking conditions.  An electronic device determines whether the locking system is in its locking or unlocking condition and comprises:  a store, an input device for entering a master code into the store to be retained therein and a comparison device for comparing the master code with an opening code subsequently entered through the input device.  The electronic device further comprises a counter for registering the entry through the input device of an opening code which is not identical to the master code and disabling the operation of the lock for a predetermined time when the number of registered opening codes which are not identical to the master code reaches a predetermined number.  A display device indicates the condition of the lock and the occurrence of at least one predetermined failure event.
Patent CA-1121337-A (CA)
Inventor: HERMANN JOHN ROANOKE ROAD DON
IPC: F28F1/08
Filed: 1980-07-25
Granted: 1982-04-06
Abstract: ABSTRACT OF THE DISCLOSURE     There is provided a heat-exchange element of generally cylindrical configuration, capable of being manufactured from a single sheet of metal.  The element includes a central portion with accordionated walls defining outwardly open V-shaped channels, between which are located inwardly open V-shaped channels.         One end of the element is a female end for receiving a cylindrical pipe, the female end being defined by a plurality of first segments which merge with the apical portions of the outwardly open V-shaped channels.  This leaves radially outwardly projecting ridges, the margins of which-are made gas-tight.  The other end provides a male end adapted to be received within the end of a cylindrical member, the male end being defined by second segments, each of which is con-tinuous with and merges with the apical portion of one of the inwardly open V-shaped channels.  The apical portions of the outwardly open V-shaped channels become, in the latter end portion, a radially inwardly projecting ridge of which the end margins are rendered substantially gas-tight.
Patent CA-1128974-A (CA)
Inventor: TAYLOR EDWARD BOX SNOW LAKE MA
IPC: E05C3/26
Filed: 1980-10-22
Granted: 1982-08-03
Abstract: "LOCK ASSEMBLY " ABSTRACT OF THE DISCLOSURE          The lock assembly includes a conventional inner bolt portion movable endwise by either a key or door knob in the usual way.  The end of the bolt portion within the door is provided with a ratchet and the other bolt portion is correspondingly ratcheted.  The other bolt portion is partially rotatable and includes the locking portion on the distal end thereof situated on the outside of the door.          This locking portion is cylindrical and has an inwardly step-ped lock plate engaging wall and a developed curve extending from the inner end of the step to the outer perimeter so that as it rolls along a sloping ramp in the keeper plate, the other part of the bolt partially rotates with the step engag-ing behind the keeper plate and the other bolt portion rota-ting about the longitudinal axis thereof with the ratchet preventing reverse rotation of the other portion of the bolt until the inner bolt portion is moved endwise by the key or knob thus disengaging the ratchet and allowing the other bolt portion to reverse its rotational movement and roll out of engagement with the lock plate as the door is opened.
Patent CA-1149419-A (CA)
Inventor: MOSS PHILIP H
IPC: C07C209/48
Filed: 1980-11-25
Granted: 1983-07-05
Abstract: PREPARATION OF POLYAMINES FROM POLYNITRILES                 (D#75,787-F) ABSTRACT OF THE DISCLOSURE           Covers a process for preparing polyamines from the corresponding  polynitriles  via  a  pelleted  cobalt-zinc hydrogenation  catalyst  which  comprises  contacting  a polynitrile with hydrogen in presence of said catalyst, said catalyst pellet being further characterized as substantially maintaining its integral character during said hydrogenation.                             I
Patent CA-1164218-A (CA)
Inventor: GRANT RICHARD A
IPC: C22B3/26
Filed: 1980-12-17
Granted: 1984-03-27
Abstract: ABSTRACT OF THE DISCLOSURE         This invention relates to the separation and purification of the platinum group metals; more particularly it relates to the separation of mixtures of Pt and/or Pd from Rh and/or Ru.  In more detail, the present invention relates to a process for the separation or purification of platinum group metals in which either platinum, iridium (IV) and/or palladium (II) are present in aqueous solution together with at least one of rhodium and ruthenium and one or more base metals comprising the steps of:  (a)  contacting the said aqueous solution at a pH of less than 1 with an organic hydrocarbon extraction solvent containing at least one nitrogen containing organic compound selected from the group consisting of primary, secondary and tertiary amines and quarternary ammonium compounds and at least one oxygen containing organic compound selected from the group consisting of alcohols, phenols and carboxylic acids; (b)  removing from contact with the said aqueous solution the said organic phase now containing the platinum, iridium (IV) and/or palladium (II) extracted from the aqueous solution together with the nitrogen- and oxygen-containing organic compounds while leaving other platinum group metals and base metals in the aqueous solution; and (c)  contacting the organic phase obtained at stage (b) above with an aqueous solution of a strong acid and thus stripping the platinum, iridium and/or palladium from the said organic phase and obtaining an aqueous solution of the said metals.