baber/WOPTO huggingface dataset:
Patent CA-1047078-A (CA)
Inventor: ARIKAWA HIROO
IPC: H01H85/47
Filed: 1976-04-15
Granted: 1979-01-23
Abstract: MINIATURE TIME-DELAY FUSE                 Abstract of the Disclosure A time-delay fuse is provided comprising a glass or ceramic tube sealed at both ends with sealing means such as, e.g., ferrules.  An elongated generally cylindrical core member, made from a highly heat conductive material (a sintered blend of aluminum oxide and magnesium oxide spinel), is diagonally dis-posed in said tube and rigidly fixed at both ends in intimate contact with said sealing means.  The fuse also comprises a wire strand spirally wound on said elongated core member.  The wire strand is made by winding a first metallic wire element over a second mutually fusible wire element and is soldered at both ends with a high melting solder element.
Patent CA-1068982-A (CA)
Inventor: GLADDEN ERNEST L
IPC: F42B3/18
Filed: 1976-04-22
Granted: 1980-01-01
Abstract: ABSTRACT OF THE DISCLOSURE            A detonating cap assembly is provided with a fuse-retaining bushing for protecting the charge within the cap from accidental ignition by static charges accumulating on the fuse.  The bushing is an elongated semi-conductive plastic member slidably received within the shell of the cap and having a longitudinally extending axial bore for receiving the fuse and providing a stand-off from the charge within the cap.  The bushing incorporates a thin rupturable membrane at its innermost end within the stand-off and a side notch adjacent the membrane forming a shunt path extend-ing laterally outwardly from the bore toward said shell for diverting static charge from the fuse toward the shell of the cap.
Patent CA-1084150-A (CA)
Inventor: BENNETT ROBERT R
IPC: G01S7/497
Filed: 1976-05-11
Granted: 1980-08-19
Abstract: ELECTRO-OPTICAL RANGING SYSTEM FOR DISTANCE MEASUREMENTS TO MOVING TARGETS     Abstract An electro-optical ranging system for measuring the distance to a moving target object.  A transceiver illuminates a small portion of the target object with a narrow beam of light modulated by a reference R-F signal.          Reflected light is received and focused upon a photodetector for demodulation to generate a detected R-F signal.  A pre-liminary measurement of the relative phase of the reference and detected signals is made by adjusting the relative phase using a digitally-controlled phase shifter until the output of a comparator circuit is as nearly null as possible with-out exceeding a digital input word corresponding to a dis-tance less than or equal to the target object.  The average amplitude of the comparator output corresponding to the aforementioned preliminary digital word is determined, and the average comparator output corresponding to that word as modified by the addition of one bit thereto is next determined.          The actual distance to the surface of the target object is then calculated by interpolating between the two resulting words to find an equivalent word corresponding to a null phase-comparator output.
Patent CA-1051562-A (CA)
Inventor: BARRETT HARRISON H
IPC: A61B6/02
Filed: 1976-05-28
Granted: 1979-03-27
Abstract: ABSTRACT OF THE DISCLOSURE            An apparatus and method for generating a two-dimen-sional back-projected image of a slice of an object wherein a carrier having parallel elongated projections each having an optical characteristic (transmissivity  or reflectivity) repre-senting the density characteristic of the slice of the object as measured at a particular relative rotational angle.          Successive sinusoidal patterns are imaged on the carrier at a predetermined rate.  A display or recorder synchronized at the predetermined rate, is responsive to the output of a photo-detector for displaying the back-projected image.  In a pre-ferred embodiment of the invention the carrier is a cylindrical film having projections with transmissivities that represent the density characteristic of the slice of the object under consideration.  In this embodiment, a device     unformly illuminates projections and an optical mask is provided in spaced relation to the cylindrical film and operative to image portions of the projections on the cylindrical film.  The cylindrical film is rotated on its axis so that the mask means continuously images different groups of projections on the film.          The relative angular motion between the mask and the axis of the cylindrical film is varied, whereby the mask continuously images varying portions of the cylindrical film, the variation being along the axial direction thereof.  In this embodiment the display is synchronized with the rotational rate of the cylindrical film and with the effective angular displacement rate between the mask and the axis of the cylindrical film.
Patent CA-1081843-A (CA)
Inventor: JETTEN GERBRAND
IPC: H04N7/18
Filed: 1976-06-10
Granted: 1980-07-15
Abstract: ABSTRACT:              A time video registration arrangement in which, with the use of a television camera, a storage device and a display device, each constructed in accordance with a television standard, time measurements can be performed at intervals smaller than the standard field period. To that end the arrangement is provided with a signal generator for supplying a field synchronisation-deflection signal to the camera, which signal has a repetition period which is an integral part of the field period, whilst a video signal of standard field frequency is applied to the storage device.
Patent CA-1039986-A (CA)
Inventor: HASLAM DONALD B
IPC: F16B13/06
Filed: 1976-06-21
Granted: 1978-10-10
Abstract: ABSTRACT     An expansible shell formed of a deformable material and rock bolt assembly incorporating said shell is described.          The shell comprises a one-piece casting formed of zinc, zinc alloy, aluminum, iron or plastics by die or gravity casting or by injection moulding.  Each shell consists of a plurality of outwardly diverging leaves each with a transversely convex curved outer rock engaging face for defining a substantially cylindrical external surface when the shell is compressed to its operative shape.  A planar face is formed on the inner side of each leaf inclined at a small angle of about 8° to the longitudinal centerline of the outer convex face whereby the leaf has a thin inner end and a thick outer end.  The shell inner ends each have a thin, resilient arm formed as an inner extension which interconnect to form a central bail-like structure.         In a preferred embodiment, the shell is adapted to fit over and engage a nut having a plurality of tapered planar faces corresponding with the planar inner faces of the leaves for expanding the leaves radially upon longitudinal axial movement of the nut relative to the shell.         The shell and rock bolt assembly of the invention provide a simple structural combination wherein the shells can be nested for storage and shipment, easily adapted for use, and the rock bolt assembly readily installed to provide improved surface area contact with a drill hole wall and improved resistance to sleeve slippage.
Patent CA-1069119-A (CA)
Inventor: NAGATA WATARU
IPC: C07D501/14
Filed: 1976-11-05
Granted: 1980-01-01
Abstract: ABSTRACT   Antibacterial cephems having following formula:       (wherein A is amino or substituted amino; COB is carboxy or pro-tected carboxy; R is two hydrogens, hydrogen and a monovalent substituent, or a divalent substituent; and n is zero or one) are prepared by reducing a compound having following formula:       (wherein A, COB, R, and n are defined above and X is halo or sul-fonyloxy) with a reducing reagent.
Patent CA-1078955-A (CA)
Inventor: PICKLES SIDNEY
IPC: H01Q3/14
Filed: 1977-02-17
Granted: 1980-06-03
Abstract: RADIO NAVIGATION ANTENNA SYSTEM            ABSTRACT OF THE DISCLOSURE          Tactical radio navigation systems provide bearing information to an interrogating aircraft in response to pairs of interrogation pulses received at a beacon transponder, such systems also provide distance measuring and identification information.  To provide the required bearing information, pulses radiated from a central antenna array are modulated at a 15 Hz frequency and by a 135 Hz frequency, by reflector elements rotating around a stationary central radiator   A counterpoise system associated with the central radiator and the reflector elements uptilts the carrier frequency and the 15 Hz modulation. To provide more uptilt to the radiated signal and further decrease the total energy radiated below the horizon, a double circuit shield counterpoise is provided in the lower part of a radome assembly enclosing the antenna system.
Patent CA-1038567-A (CA)
Inventor: NAUTA JELLE G
IPC: A47L7/00
Filed: 1977-02-28
Granted: 1978-09-19
Abstract: ABSTRACT OF THE DISCLOSURE         This invention relates to a vacuum cleaning machine which is capable of operating as a wet or dry pickup without any substantial modification in the basic structure of the machine.  To convert from a machine capable of operation as a wet pickup machine to a dry pickup machine requires only that the operator open the containment vessel and install a suitable paper or cloth bag over an elbow member protruding into the containment vessel.
Patent CA-1045838-A (CA)
Inventor: LOVAT RICHARD
IPC: E21D11/08
Filed: 1977-03-31
Granted: 1979-01-09
Abstract: DEVICE FOR ERECTING A SEGMENTED TUNNEL WALL LINING          A B S T R A C T        A device for positioning segments to line a tunnel wall.  An axially rotatable drive shaft carries at one end of an articulated arm with pivotably connected upper and lower arm members.  A jack interconnects the two arms intermediate their ends.  The upper arm member is pivotably connected at its free end to the drive shaft on an axis normal both to the shaft and to the upper arm member, and the arm lies in a plane through the normal axis.  Preferably a shoe is detachably connectable to the lower arm member and to a segment to be positioned against the tunnel wall.
Patent CA-1171014-A (CA)
Inventor: HAMNER GLEN P
IPC: B01J35/10
Filed: 1977-05-03
Granted: 1984-07-17
Abstract: ABSTRACT OF THE DISCLOSURE      A hydrodesulfurization process (and catalyst) wherein a sulfur-containing hydrocarbon feed is contacted, in the presence of hydrogen, with a catalyst having greater than fifty percent of its total pore volume of absolute diameter ranging from about 70.ANG. to about 160.ANG..  Preferably, the total pore volume of the catalyst contains greater than seventy percent of its total pore volume within the 70.ANG. to 160.ANG. pore diameter range, and more preferably greater than ninety percent of its total pore volume is within 70.ANG. to 160.ANG. pore diameter range, with pore diameters below 70.ANG. and above 160.ANG. being minimized.  The pore volume of such catalysts range be-tween about 0.35 cc/g and 1.0 cc/g (B.E.T.). and preferably from about 0.4 cc/g to about 0.9 cc/g.  The surface area of such cat-alysts range between about 150m2/g and 450 m2/g, preferably from about 200 m2/g to about 400 m2/g.
Patent CA-1095340-A (CA)
Inventor: COUCH THOMAS W
IPC: G01K11/06
Filed: 1977-05-20
Granted: 1981-02-10
Abstract: Abstract A freeze and thaw indicator is provided utilizing the expansion characteristics of water when it undergoes a change from the liquid state to the solid state.  An ampul having one side made weaker than its opposite side is substantially filled with water.  Indicator paper having ink printed on one side is situated adjacent to the ampul.  The indicator paper and ampul are housed in a blister pack plastic container for protecting the ampul from breakage.  When the temperature around the indicator reaches the freezing point of water, the ampul breaks.  During a subsequent thawing, the water flows on to the indicator paper causing the ink which is printed on one side to wick up, thereby indicating that the freeze or thaw has taken place.
Patent CA-1104720-A (CA)
Inventor: LEVINE PETER A
IPC: H01L21/339
Filed: 1977-06-30
Granted: 1981-07-07
Abstract: RCA 70,946 LOW NOISE CCD INPUT CIRCUIT     Abstract of the Disclosure A "fill and spill" charge coupled device (CCD) input circuit which includes a drain region separated from the input storage region by a potential barrier.  The barrier height is held at a level at least as high as that of the potential barrier beneath the first gate electrode and lower than that of the first transfer electrode to insure that carriers injected by the source electrode during the fill operation which might otherwise flow down the CCD channel pass instead to the drain region.
Patent CA-1092221-A (CA)
Title: Variable range marker
Inventor: BRYDEN JOSEPH E
IPC: G01S7/12
Filed: 1977-07-05
Granted: 1980-12-23
Abstract: VARIABLE RANGE MARKER                       ABSTRACT OF THE DISCLOSURE         A variable range marker device for use with a PPI radar with digitized video displayed in non-real time.  The position of the range marker is initially operator determined by rotation of a knob mechanically linked to an optically encoded disc.  Optical sensors produce a digital out-put indicative of the disc rotation angle and range mark position as a dis-tance from the center of the radar display screen.  A counter is preset with the digital output at the start of each sweep and decremented once each range cell until a count of zero is reached at which time an unblanking pulse is produced.  A numeric display of range is produced by dividing the number of range cells to the range mark by the range setting and displaying the result with a three digit LED display.
Patent CA-1091366-A (CA)
Inventor: ASH EDWARD B
IPC: G21C9/027
Filed: 1977-10-04
Granted: 1980-12-09
Abstract: ABSTRACT           A nuclear reactor having an inherently safe automatic shutdown capability.  The nuclear reactor comprises a pressure vessel, a core located within the vessel and containing a sufficient amount of fissionable material to establish and sustain a chain-type fission reaction, and a plurality of elongated conduits disposed in a regular arrangement within the vessel.  Each of the conduits defines a fluid flow path and comprises a first section located within and extending through the core, and a second section located exteriorly of the core and positioned above the first section.  Each of the conduits contains a plurality of substantially spherical bodies having a high neutron absorption cross section.  The bodies are present in a sufficient quantity to substantially fill the first section of each of the conduits and have a diameter of less than about one-half that of the narrowest part of the fluid flow path of the conduit, so that said bodies are freely movable through said conduits.  The conduits are provided with a first fluid connection to a lower part of the first section and a second fluid connection to an upper part of the second section for the passage of a pressurized fluid therethrough while maintaining the reactor in operation. The nuclear reactor further comprises a means for supplying the pressurized fluid to said first fluid connection for moving all of said plurality of bodies from the first section to said second section of each of the elongated conduits to form a hydraulically stacked bed of the spherical bodies.  A bypass means is located intermediate the second fluid connection, and the second section of each of the conduits and includes a plurality of fluid passageways distributed along the length of the second section to provide a ratio of the length of the second section provided with fluid passageways to the length of the second section occupied by the stacked bed of bodies of from about 0.5:1 to 1.2:1 for permitting a portion of the pressurized fluid to bypass a portion of the stacked bed of bodies during normal operation of the reactor.  Each of the plurality of fluid passageways has a cross-sectional area less than that of any single spherical body.
Patent CA-1104647-A (CA)
Inventor: SUZUKI TADAO
IPC: H02M7/5383
Filed: 1977-10-24
Granted: 1981-07-07
Abstract: ABSTRACT OF THE DISCLOSURE     An inverter includes a pair of switching elements operated by control signals from a signal generator to take two-position action in the same phase or in opposite phases, and a coupling transformer to couple the control signals so that ON actions or ON and OFF actions of the switching elements are synchronized with each other more precisely than circuits of the past have been able to provide.
Patent CA-1104235-A (CA)
Inventor: SMITH THEODORE D
IPC: H01H13/48
Filed: 1977-12-01
Granted: 1981-06-30
Abstract: SWITCH MECHANISM FOR A CALCULATOR TYPE KEYBOARD     ABSTRACT OF THE DISCLOSURE     A calculator type keyboard includes push-button switch contact mechanisms formed as integral parts of a con-ductive web. Each of the mechanisms includes support arms inter-secting in a crisscross configuration only a portion of which is deformed in a dome-like contour.  Contact blades extend from the intersection of the support arms and have ends coupled to adjacent support arms by bridge members.  As the switch contact mechanism is depressed to various degrees, the supported contact blades make contact with respective binary code conductors, the dome-like contour deflects through a snap action position and finally the apex of the dome-like contour makes contact with a centrally located flag contact.     While closure of the contact blades and code conductors is maintained, radial wiping movements of the contact blades across the surfaces of the code conductors occur.
Patent CA-1119542-A (CA)
Inventor: CLAVENNA LEROY R
IPC: C10J3/46
Filed: 1978-01-11
Granted: 1982-03-09
Abstract: U.S. 762,548 ABSTRACT OF DISCLOSURE In a coal gasification operation or similar conversion process carried out in the presence of an alkali metal-containing catalyst wherein solid particles containing alkali metal residues are produced, alkali metal constituents are recovered from the particles by mixing them with calcium oxide or a solid calcium-containing compound that decomposes upon heating to from calcium oxide, and heating the resultant mixture of solids to a temperature sufficiently high to cause calcium oxide to react with water insoluble alkali metal aluminosilicates in the alkali metal residues to produce reaction produces containing water soluble alkali metal aluminates and water insoluble calcium silicates.  The reaction products are contacted with water, which leaches the alkali metal aluminates and other water soluble alkali metal constituents from the solids.  The pH of the resultant aqueous solution is lowered by contacting it with a carbon dioxide-containing gas under conditions such that carbon dioxide reacts with the alkali metal aluminates to form a water insoluble precipitate containing aluminum hydroxide and an aqueous solution containing water soluble alkali metal carbonates.  The aqueous solution is recycled to the gasification process where the alkali metal carbonates serves as at least a portion of the alkali metal constituents which comprise the alkali metal-containing catalyst.  This process permits increased recovery of alkali metal constituents, thereby decreasing the overall cost of the gasification process by reducing the amount of makeup alkali metal compounds necessary.
Patent CA-1057542-A (CA)
Inventor: ERICKSON LLOYD A
IPC: F16B37/04
Filed: 1978-01-11
Granted: 1979-07-03
Abstract: ENCLOSED SEALING SCREW GROMMET            Abstract A one-piece plastic screw grommet for use in a polygonally apertured panel. The shank of the grommet is complimentary to the aperture with which it is used and includes a plurality of posts positioned in the corners of the aperture with the posts carrying web-like spring members that support and co-act with legs posi-tioned medially between adjacent posts. Each leg includes a trans-versely concave inner surface forming a segment of the bore with the concave surface falling substantially on the pitch diameter of the screw with which it is associated the posts, legs, and spring members are supported at opposite ends by the head and a free end element, with the end element closing the bore and the head sealing against the panel.
Patent CA-1081064-A (CA)
Inventor: FUJIKAWA TETSUZO
IPC: F02M35/16
Filed: 1978-01-13
Granted: 1980-07-08
Abstract: ABSTRACT OF THE DISCLOSURE         An air cleaner for an engine of a snow mobile provided with an endless vehicle track driven by the engine, includes an air cleaner main body comprising a duct extending longitudinally of the snow mobile and disposed on a floor covering of the endless vehicle track.  The air cleaner main body is connected at its forward end to a carburetor for the engine and includes a rearward portion formed with a plurality of air inlet apertures.  A riders seat is mounted on the rear portion of the air cleaner main body and includes a shock-absorbing member for enclosing the air inlet apertures, and an outer cover member for covering the shock-absorbing member.  The shock-absorbing member serves concurrently as a cleaning element of the air cleaner, and at least one air intake port is formed in the outer cover of the seat at its rear end or one or both of its sides.  The air cleaner main body is formed with an increased volume section which serves as a muffler for silencing engine intake noises.
Patent CA-1081142-A (CA)
Inventor: KRAMER HENDRIKUS
IPC: F16L27/107
Filed: 1978-02-21
Granted: 1980-07-08
Abstract: ABSTRACT OF THE DISCLOSURE        A flexible pipe section is provided with ends having coupling flanges.  The wall of the pipe section lying between the flanges comprises a number of metal annular members spaced. from one another and extending substantially between the inner and outer surfaces of said pipe wall.  Adjacent members are connected with one another by elastic material.  The pipe section is useful  for dredging purposes and offers a high resistance to wear and damage caused by penetration of sharp objects.
Patent CA-1103824-A (CA)
Inventor: AUSTIN ROBERT A
IPC: B41M5/155
Filed: 1978-03-06
Granted: 1981-06-23
Abstract: ABSTRACT OF THE DISCLOSURE      This invention relates to a process for the pro-duction of a hot melt coating composition containing micro-capsules.  The process comprises the steps of preparing a dispersion of substantially discrete microcapsules in a volatile solvent continuous phase.  A hot melt suspending medium is prepared, the hot melt suspending medium having a melting point of from about 50°C. to about 140°C. and a melting point range of less than about 15°C, the hot melt suspending medium being in a fluid state.  The dispersion of substantially discrete microcapsules in a volatile solvent is then mixed with the fluid hot melt suspending medium with turbulent agitation to form an intimate mixture of the dispersion of microcapsules and the hot melt suspending medium.  Heat and a vacuum are applied to the mixture, while maintaining the agitation, until the volatile solvent is substantially removed from the mixture to form a dispersion of substantially discrete microcapsules in the liquid hot melt suspending medium.  The heat is applied at a rate sufficient to maintain the mixture at a temperature above the melting point of the melt suspending medium, the temperature also being above the boiling point of water at the vacuum level.  This invention further relates to the coating composition produced by the process of this invention.