baber/WOPTO huggingface dataset:
Patent CA-1108946-A (CA)
Inventor: STAROSELSKY NAUM
IPC: F15B13/02
Filed: 1978-11-30
Granted: 1981-09-15
Abstract: ABSTRACT OF THE DISCLOSURE           A control apparatus for antisurge protection of a dynamic compressor including a junction of a closed antisurge loop with a surge limit computing module and a two-mode controller with a relay backup system with deviation alarms provided herein.  In its opera-tion during a slow disturbance, the two mode controller provides modulated antisurge protection by opening a relief valve, if the operating point of the compressor crosses the surge control line.          During a dangerously fast disturbance, the relay backup system provides antisurge protection if a preestablished deviation of the operating point from the surge control line appears.  A relay backup system opens the relief valve very quickly.  When the relief valve is so opened, the process of the user of fluid from the compressor is compensated by increasing the performance of the compressor to maintain pressure or flow rate.  Then the relay system closes the relief valve with a relatively slow speed, which prevents a danger-ous deviation of the operating point from the surge control line.          In time, the surge limit line may change so that the surge control line is no longer correctly placed.  If under such circumstances surge appears, then the backup relay system opens the relief valve very fast, closes it with a relatively slow speed and changes the position of surge control line.  A much higher reliability of con-trol of the compressor is thus achieved when operating close to the surge control line.  This permits an expansion of the safe operating zone of the dynamic compressor and also increases the safety of operation of the process using the compressed gas.
Patent CA-1113313-A (CA)
Inventor: WINCH ALLEN R
IPC: D06B3/12
Filed: 1978-12-08
Granted: 1981-12-01
Abstract: ABSTRACT OF THE DISCLOSURE           An apparatus and method for providing an impregnation/ rinsing of a web with fluid is disclosed wherein the web is repeatedly gently squeezed and allowed to open. A per-forated conveyor belt carries the web within a longitudinal tank in which a series of squeeze rollers and a series of singular or cooperating rollers are arranged with the cooper-ating rollers being disposed intermediate the squeeze rollers. The web is carried by the conveyor belt beneath the first squeeze roller where the web is gently squeezed in a nip defined between the conveyor belt and the roller. The conveyor belt then carries the web above a cooperating roller. After the fluid in the tank with out restraint until the web is gently squeezed again between the conveyor belt and the next squeeze roller. The steps of squeezing and absorbing are repeated throughout the longitudinal tank. Fluid is supplied to the longitudinal tank by one or more orifices which receive fluid from either a collection tank provided beneath the conveyor belt and longitudinal tank and/or from a supply of fresh fluid. The fluid in the tank typically travels in a path which is opposed to the general direction of travel of the web within the tank, especially when the apparatus is used as a rinser. Various devices and arrange-ments of belts may be added, if desired, to prevent the web from adhering to the surface of the squeeze rollers.
Patent CA-1099593-A (CA)
Inventor: MATTE ROGER A
IPC: B60F1/00
Filed: 1978-12-14
Granted: 1981-04-21
Abstract: ABSTRACT OF THE DISCLOSURE        A portable railroad attachment for a motor bicycle comprises a trolley unit for supporting the bicycle and having a pair of track wheels engageable with a first rail of the track and a third wheel engageable with the other rail.  The trolley unit is detachably secured to the bicycle frame by a swivel coupling which provides a pivotal support about which the bicycle is pivoted under the weight of a rider to bring the driven wheel of the bicycle into tractional engagement with the first track rail.
Patent CA-1152259-A (CA)
Title: Hydrophilic contact lens coating
Inventor: ELLIS EDWARD J
IPC: G02C7/04
Filed: 1978-12-21
Granted: 1983-08-23
Abstract: Soft and hard contact lenses with an ionic charge on their surface are treated with a lens solution containing an oppositely charged ionic polymer to form a hydrophilic polyelectrolyte complex on the lens surface, which complex acts as a hydrogel and improves the properties of the lens.
Patent CA-1113284-A (CA)
Title: Powder-metallurgy steel article with high  vanadium-carbide content
Inventor: HASWELL WALTER T
IPC: C22C38/00
Filed: 1979-01-05
Granted: 1981-12-01
Abstract: ABSTRACT OF THE DISCLOSURE         A powder metallurgy tool steel article for use in applications requiring high wear resistance having a carbide content of 10 to 18 volume percent of substantially all MC-type vanadium carbides, which carbides are substantially spherical and uniformly dispersed; the carbon content of the article is balanced relative to the carbide formers vanadium, chromium and molybdenum to provide an amount of carbon in the matrix of the article sufficient to permit the article to be heat treated to a hardness of at least 56 Rc.                          *****
Patent CA-1105352-A (CA)
Inventor: DEATON THOMAS M
IPC: E21B34/10
Filed: 1979-02-19
Granted: 1981-07-21
Abstract: IMPROVED SUBSURFACE SAFETY VALVE     ABSTRACT OF THE DISCLOSURE      A subsurface safety valve assembly for connection in a well pipe, including a valve member disposed in a valve body having a bore or passageway therethrough, a pair of spaced apart and oppositely facing valve seats in surrounding rela-tion to an intermediate portion of the passageway, the valve positioned there at and operable to open and close said passageway, a space within the valve body outwardly of the passageway therethrough, a control frame guidably movable within the space and having a piston associated therewith adapted to define first and second variable capacity pressure chambers within the space, means for moving the control frame in opposite longitudinal directions to open and close the valve, the means for moving the control frame including first and second ports, the first port providing fluid communication between the first variable capacity pressure chamber and an external source of pressure fluid, the second port providing fluid communication between the second variable capacity pressure chamber and the passageway through the valve body.
Patent CA-1126167-A (CA)
Inventor: NEWBOLD WILLIAM F
IPC: H03M1/00
Filed: 1979-03-14
Granted: 1982-06-22
Abstract: Case 04-4161-U.S.                     APPLICATION OF                  WILLIAM F. NEWBOLD AND GURNAM SINGH FLUIDIC ANALOG TO DIGITAL CONVERTER              ABSTRACT             A fluidic analog to electronic digital converter responsive to fluid pressure input signals to produce corresponding electronic digital output signals.  A common pressure chamber is provided with a plurality of outlets connected to one side of each of a plurality of respective differential pressure transducers.  The other side of each of the differential pressure transducers is connected to a source of a process pressure to be converted.  An imput to the common chamber is obtained from a pressure ramp generator capable of producing a fluid pressure ramp In a first embodiment, an electrial output from each of the pressure transducers is detected and is applied to a restec-tive one of a plurality of gates to control electrical signal transmission therethrough.  A common oscillator circuit is arranged to supply fixed frequency signals to a signal counter having an output connected to a second input of all of the signal gates.  An output from each of the signal gates is applied to a respective one of a plurality of count storage circuits.  Each of the signal gates are responsive to an output signal from the respective one of the plurality of pressure transducers to transfer a stored count from the counter to a respective one of the count storage cicuits upon the detection of a pressure equality by the correspond-ing pressure transducers.  In a second embodiment, the common chamber is also provided with a pressure measuring transducer.     The output from the pressure measuring transducer is applied to each of a plurality of sample and hold circuits.          The detected outputs from the differential pressure trans-ducers are also applied to respective ones of the sample and hold circuits to energize the circuits to sample the output from the pressure measuring transducer.  The output of the sample and hold circuits are applied to respective inputs of a multiplexer.  The output of the multiplexer is, in turn, connected to the input of an analog-to-digital converter to convert the signal output from the multiplexer to a digital signal.
Patent CA-1107287-A (CA)
Inventor: FLIEDNER LEONARD J JR
IPC: C07D209/82
Filed: 1979-03-14
Granted: 1981-08-18
Abstract: ABSTRACT OF THE DISCLOSURE   2-Amino- and 2-(substituted amino)   tetra-hydro- and -cis-hexahydro --carbazoles useful for alleviating depression in mammals or as intermediate compounds thereto.
Patent CA-1103417-A (CA)
Inventor: THOMAS WILLIAM J
IPC: A46B17/06
Filed: 1979-03-16
Granted: 1981-06-23
Abstract: ABSTRACT OF THE DISCLOSURE                 A self cleaning brush comprises a body member having a hollow interior compartment and an anterior wall provided with a number of spaced apertures through which the bristles of the brush can project. A bristle supporting member, including a brush head to which the bristles are affixed, is located within the hollow compartment and has a brush head operating member attached to its upper surface which projects through an opening in a posterior wall. The brush head operating member is movable reciprocable within the hollow compartment from a first position, in which the bristles project through registering apertures in the anterior wall, to a second position, where the bristles are fully retracted within the brush body the retraction of the bristles through the apertures in the anterior wall allows for easy removal of hair or debris from the bristles, The brush head operating member may be locked in any desired position by means of a  reciprocable lever member which extends from the brush body, The inner end of the lever member constitutes a so-called "locking panel" which fits within one of a plurality of recesses located within the brush head operating member. When the lever is not engaged within one of the recesses in the brush head operating member, the brush head and bristles can be easily extended or retracted as desired.
Patent CA-1101913-A (CA)
Inventor: STRANCZEK NORMAN J
IPC: H01H9/28
Filed: 1979-04-30
Granted: 1981-05-26
Abstract: MANUAL OPERATING HANDLE ASSEMBLY FOR CIRCUIT INTERRUPTER DEVICES Disclosed is a manually operated handle assembly for operating high voltage circuit interrupter devices which are suitable for circuit opening operations but which are not suitable for circuit closing operations.  Interrupter devices for which the handle assembly embodied in the present invention is suitable, therefore, are intended to be used in conjunction with a disconnect switch that is suitable for circuit-closing operations.  By removing a lock bar, which unless removed prevents movement of the operating handle, and raising the operating handle to the horizontal position, the operating handle can be pivoted to rotate an operating shaft which causes the interrupter device to trip open.  Closing the interrupter device is accomplished by pivoting the operating handle farther and thereby rotating the operating shaft an additional amount.  The handle assembly provides an interlock feature which prevents the interrupter device being operated by the handle from being inadvertently closed unless the associated disconnect switch is open. However, the interlock feature does not interfere with operation of the handle assembly to cause the interrupter device to trip open. The interlock feature of the disclosed invention incorporates a key operated locking mechanism which prevents operation of the handle to complete the closing of the interrupter device unless an associated disconnect switch has been opened and locked in the open position. The operating handle is held in a horizontal position except when it is rotated to the "home" position, thereby providing a visual indication when the interrupter device is not in the "home" position.
Patent CA-1130650-A (CA)
Inventor: SIEGHARTNER LEONARD J
IPC: F04D29/22
Filed: 1979-05-01
Granted: 1982-08-31
Abstract: LEONARD J. SIEGHARTNER For: CENTRIFUGAL IMPELLERS ABSTRACT A centrifugal impeller for use in a combination centrifugal-turbine pump capable of pumping liquids at or near the boiling point thereof with suction heads not greater than about one foot and wherein the entrance portion of the centrifugal impeller includes a plurality of vane inserts removably mounted therein, with adjacent ones of the inserts having vanes that are aligned with each other to define liquid-feeding spiral vanes that extend through the plurality of inserts.
Patent CA-1123367-A (CA)
Inventor: MARKLUND ERLAND
IPC: B07C5/14
Filed: 1979-06-15
Granted: 1982-05-11
Abstract: ABSTRACT      This invention relates to a compartment for elongated objects, such as wood, and of the type comprising flexible support means forming bottom and sides of the compartment, e.g. in the form bands.   To make possible i.a. a rapid and a correct restoration of such a compartment after emptying the support means can according to the invention, be rolled onto each their coiling means and are at their free end, which is designed as or with an attaching means, detachably attached in an attaching mechanism, which at emptying of the compartment loosens the bands, means being arranged after loosening the bands to introduce the bands in the attaching mechanism to bring the attaching means of the bands by coiling of the bands onto the coiling means to a retaining engagement with the attaching mechanism.
Patent CA-1071353-A (CA)
Inventor: SCHREIBER HINDA S
IPC: A41C3/00
Filed: 1979-06-29
Granted: 1980-02-12
Abstract: ABSTRACT OF THE DISCLOSURE     An athletic brassiere, particularly suitable for women runners, holds the breasts comfortably and snugly to the body.          The brassiere has a flat front panel covering the front of both breasts when worn and which is free of seams in the vicinity of the nipples and which does not uplift the breasts.  Side panels are sewn to side edges of the flat front panel with the sewing seams being away from the wearer.  A wide elastic rib band and elastic straps which cross in the back hold the brassiere firmly in place.  Non-irritating material is used and all seams face the outside.  All hardware is eliminated.  The cups are not shaped but are preferably made of elastic material to pull the breasts in snugly against the body.
Patent CA-1115049-A (CA)
Inventor: CANTARELLA BRUNO G
IPC: E02F3/76
Filed: 1979-07-03
Granted: 1981-12-29
Abstract: EARTH MOVING MACHINE OF THE SCRAPING BLADE TYPE                  ABSTRACT OF THE DISCLOSURE An earth moving machine having an improved mounting for a scraping blade attached thereto.  The scraping blade of the machine herein disclosed is capable of undergoing independent or simultaneous rotational movement about three perpendicular axes and applying high forces to material to be moved.  Move-ment about two of these axes is controlled by two separate pairs of hydraulic cylinders.  A hydraulic actuator effects movement of the blade about a third axis and acts to transmit a part of the force applied to the blade during operation to the frame of the machine.
Patent CA-1137519-A (CA)
Inventor: PAI CHAO-CHYAN
IPC: C07C29/14
Filed: 1979-08-10
Granted: 1982-12-14
Abstract: 12,191 A HETEROGENEOUS VAPOR PHASE PROCESS FOR THE CATALYTIC HYDROGENATION OF ALDEHYDES               TO ALCOHOLS                 ABSTRACT OF THE DISCLOSURE           A heterogeneous vapor phase process for the hydrogenation of aldehyde(s) containing 1 to 8 carbon atoms to the corresponding alcohol(s) which process comprises contacting a vaporous stream of aldehyde(s) and a hydrogen containing gas with a catalyst comprising a reduced mixture of CuO and ZnO at a temperature of between about 110° and 180°C and a pressure of between about 20 and 150 psig.     S P E C I F I C A T I O N
Patent CA-1114718-A (CA)
Inventor: UCHIMURA TOSHIO
IPC: F15B11/02
Filed: 1979-09-11
Granted: 1981-12-22
Abstract: ABSTRACT OF THE DISCLOSURE           An inching valve of the hydraulic balance type com-prising a valve box having a bore hole and a plurality of ports formed therein, a spool slidably mounted within the bore hole, the spool having a spring chamber and a hydraulic pressure receiving chamber formed therein, and a valve stem slidably mounted within the spool, one end of the valve stem is mechanic-ally connected to an inching pedal and the other end being provided with a nut.   A spring is accommodated within the spring chamber and a load piston is disposed within the hydraulic pressure receiving chamber.  The spring force applied against the valve stem in an axial direction is balanced with the hydraulic pressure exerted on the nut through the load piston in the opposite axial direction.
Patent CA-1127195-A (CA)
Inventor: RUSCHEPAUL KLAUS-JOERG
IPC: B65H1/04
Filed: 1979-10-11
Granted: 1982-07-06
Abstract: ABSTRACT OF THE DISCLOSURE     Disclosed is a device for separating sheets from a stack of sheets, comprising a base for supporting the stack of sheets; a bar extending transversely along one edge of the stack of sheets; two members attached to the bar at a distance from one another corresponding to the width of the sheets for holding down the corners of the sheets; and two guide elements mounted on the base on opposing sides of the stack of sheets for vertically displaceably receiving the bar and guiding the bar along a vertical path.
Patent CA-1113164-A (CA)
Inventor: WARD RONALD C
IPC: H01R4/24
Filed: 1979-12-13
Granted: 1981-11-24
Abstract: TITLE       A TERMINAL APPARATUS FOR INTERCONNECTING      TWO OR MORE INSULATED ELECTRICAL CONDUCTORS                         ABSTRACT          Terminal apparatus comprised of an inter-connecting terminal and an insulated base complementary to the terminal.  The terminal includes a center section providing an electrical connection.  The center section which includes slot-type termination devices is connected to an electrical conductor held within a support channel on the base, by moving the center section and the base together in a linear direction.  The outer sections of the terminal are left in an angled position.  In making subsequent connections to other electrical conductors held on the base, the ends of the outer sections are moved downward in a pivoting fashion.  Slot-type termination devices on the outer sections engage the respective conductors.
Patent CA-1143708-A (CA)
Title: Arrangement for crossings between roads and  railways
Inventor: LIMMERGARD STEN
IPC: E01B1/00
Filed: 1979-12-14
Granted: 1983-03-29
Abstract: ABSTRACT OF THE DISCLOSURE          The present invention relates to an arrangement for crossings between road and railway, where the road structure is interrupted between two edges, between which is positioned at least one railroad track, the arrangement comprising two rails supported by a row of sleepers arranged substantially perpendicular to the rails, said sleepers resting on a foundation, outer slabs being deposited in the area between the rails and the respective edges of the road structure, and a center slab, preferably divided up into sections in the longitudinal direction of the track and positioned between the rails forming the railroad track, which slabs are provided with their top surfaces level with the top surfaces of the rails and the top surface of the road structure, and elongated supporting elements provided to extend along said edges of the road structure.  The elongated supporting elements comprise in combination a bottom surface provided to rest on the foundation, a first side edge which is provided to face the road structure, forming a support for the same, a first upper surface connected to said side edge, a positioned second upper surface positioned at a distance from the first upper surface which substantially is level with the first upper surface, between the both upper surfaces and extedning along the supporting element, a groove open in the upper surfaces and provided to form a water outflow, a second side edge opposite to the first side edge, forming a support for the outer edge of the respective outer slab, so that the elongated supporting element forms a support for the road structure, a base surface level with the road and the outer slab, a support for the outer slab and a water outflow for water preferably from the road.
Patent CA-1137726-A (CA)
Inventor: KODERA YUJI
IPC: B29C55/00
Filed: 1979-12-18
Granted: 1982-12-21
Abstract: A METHOD OF PRODUCING ETHYLENE-VINYL ALCOHOL COPOLYMER FILM      Abstract of the Disclosure A method of producing films of ethylene-vinyl alcohol copolymers having an ethylene content of 20-55 mole % and a saponification degree of not less than 96% is provided which is characterized in that biaxial or multiaxial stretching at a low moisture content and at low tempera-tures, previously thought difficult, is made possible by using unstretched films which are especially low in the degree of crystallinity.  The degree of crystallinity of the unstretched film is represented by the density at 25°C thereof and when the ethylene content is X mole %, a film having a lower density value than the value calculated by the formula 1.320 - 4.3 x 10-3 X          ( g/ml ) is used.  The moisture content is not more than 3.5%, preferably not more than 2.0%, the stretching temperature is 50-150°C, preferably 50°-100°C, and the stretching ratio is 4-20 times.  If necessary, heat treatment follows the stretching.  Such a method gives excellent packaging films having low levels of oxygen gas permeability, which are moreover less dependent on humidity in the atmosphere.
Patent CA-1114604-A (CA)
Inventor: BARBIERI JOSEPH C
IPC: H01B7/36
Filed: 1979-12-24
Granted: 1981-12-22
Abstract: ABSTRACT         A marker sleeve assembly comprising a plural-ity of marker sleeves each joined to a longitudinal connecting member.  The connecting member is formed integrally with the marker sleeves and is attached to the outer wall of each sleeve in the assembly.  The marker sleeves are detachably joined to the connecting member so that an individual marker sleeve can be removed from the connecting member for application to an article.