baber/WOPTO huggingface dataset:
Patent CA-1045613-A (CA)
Inventor: FISHER WALTER A
IPC: E02D17/08
Filed: 1977-01-06
Granted: 1979-01-02
Abstract: ABSTRACT OF DISCLOSURE This invention relates to a trench shoring assembly which includes a pair of spaced apart side walls for vertical disposition within a trench.  Spreader pipes and spreader collars interconnect the side walls and allow limited pivotal movement between the wide walls.  Each side wall includes outer and inner metal plates connected to a plurality of interconnected struc-tural members include horizontally extending hollow metal beams including a top beam which extends longitudinally along the top of the side wall, two intermediate beams parallel the hollow metal beam and a bottom beam.  A hardwood insert is disposed within the top beam to prevent the collapse of the hollow metal beam.  Each side wall contains a number of hollow beams extending perpendicularly to the horizontal beams and ribbed members extending perpendicularly to the horizontal beams. These vertical beams and members are interconnected by a strip member.  The side walls of the assembly have a tapered bottom portion which defines a triangular shaped pointed lower extremity extending between the ends of the bottom portion.   Triangular members are disposed at the ends of the bottom portion to protect the ends from abrasion.  A metallic bar is disposed at the pointed lower extremity and extends between the ends of the bottom portion and protects the bottom of the side wall against abrasion.  A number of triangularly shaped gusset plates are spaced along the lower extremity and extend downwardly from the horizontally extending bottom beam to a pointed lower end of the lower extremity. The metallic bar is disposed in a notch of the pointed lower ends of the gusset plates.  A U-shaped member is welded to the main frame, and, in turn, a spreader collar is welded to the U-shaped member so that a force applied to the spreader collar is trans-ferred directly to the main frame.  Each spreader pipe spaces the side walls apart between two spreader collars to which the spreader pipe is attached by spreader pins.  The spreader pins extend through a hole extending through the spreader collar and an elongated slot formed through the spreader pipe.  The elong-ated slot is larger than the spreader pin to allow for limited pivotal movement between the overlapping spreader pipe and spreader collar.  A pair of horizontally spaced structural brace plates extend vertically between a pair of vertically spaced spreader pipes.  Lifting rings are slidably attached to the spreader pipes for lifting the assembly.  A plurality of flanges extend from a spreader pipe and are connected by locking pins to mating flanges which extend from another spreader pipe of another vertically stacked trench shoring assembly.
Patent CA-1044741-A (CA)
Inventor: HEDSTROM NORMAN A
IPC: A47B65/00
Filed: 1977-02-08
Granted: 1978-12-19
Abstract: ABSTRACT      A cabinet is provided which comprises a pull-out shelf, means for supporting books on the shelf so that they can be opened and read without removing them from the shelf, and means for automatically closing the books at the ends of the shelf when the shelf is pushed back into the cabinet.
Patent CA-1073098-A (CA)
Inventor: BRAITBERG MICHAEL F
IPC: G11B5/03
Filed: 1977-05-05
Granted: 1980-03-04
Abstract: Case 04-4095-U.S.                      APPLICATION OF MICHAEL F. BRAITBERG          FOR MAGNETIC RECORDING CONTROL CIRCUIT                  ABSTRACT OF THE DISCLOSURE     A magnetic recording head driving circuit in a single operational differential amplifier which mixes the bias signals with the data signals, the signal level of the two signals being separately controlled.  The output of the amplifier is applied to the recording head through an impedance matching network.  The impedance matching network converts the relatively high inductive impedance of the head to a substantially and effectively resistive load, matching the output impedance of the amplifier at the frequency of the bias signal.
Patent CA-1093474-A (CA)
Inventor: OLSSON KNUT A G
IPC: C02F11/12
Filed: 1977-05-24
Granted: 1981-01-13
Abstract: CANADIAN PATENT APPLICATION      OF                           GUNNAR OLSSON                                AND                           PETER ASTROM                               AND             CHRISTIAN JOHANSSON                               FOR             METHOD AND APPARATUS FOR REMOVING FILTERABLE SUBSTANCES FROM           A LIQUID               Abstract of the Disclosure The disclosure relates to a method and apparatus for removing separable impurities from a liquid. In the method, the liquid is caused to pass radially through a cylindrical roll of web-like, wet-strength fiber material at the same time as the fiber web which forms the roll is continuously drawn out at low speed from the roll at that circumferential side where the liquid is caused to enter. As a result, the roll constantly offers a relatively clean surface to the penetrating liquid. The apparatus comprises a chamber for the roll, a conduit for conducting the liquid to the one circumferential side of the roll, a discharge for conveying off liquid from the vessel at the other side of the roll, rollers for guided withdrawal of the fiber web, and a receptacle for collecting the web withdrawn from the roll.
Patent CA-1077846-A (CA)
Inventor: BARTHOLINI GIUSEPPE
IPC: A61K31/55
Filed: 1977-07-19
Granted: 1980-05-20
Abstract: PHARMACEUTICAL COMPOSITIONS HAVING AN ACTION ON THE CENTRAL NERVOUS SYSTEM            Abstract of the Disclosure The specification discloses pharmaceutical compositions, having an action on the central nervous system, containing a gabamimetic  compound and a neuroleptic compound.          The gabamimetic  compound has the formula   and the neuroleptic compound has the formula   The compositions of the invention are medicaments which can be used in human therapy in the psychiatric field and, in particular, in the treatment of psychosis.
Patent CA-1043308-A (CA)
Inventor: WIEDER RODNEY L
IPC: A47G25/14
Filed: 1977-09-01
Granted: 1978-11-28
Abstract: APPARATUS AND METHOD FOR HANDLING GARMENT HANGERS    Abstract of Disclosure A method and an apparatus are provided from handl-ing a plurality of garment hangers as a unit for mounting and dismounting on the bars of garment racks and for transporta-tion therebetween.  The apparatus includes a handle for carry-ing the apparatus and a scooping member joined to the handle and having a hanger hook-receiving surface which is generally parallel to and spaced from the handle.  In addition, the hanger hook-receiving surface is inclined with respect to a plane parallel to the handle and intersecting both the handle and the receiving surface.  To remove garment hangers from a bar, the apparatus is positioned so that the receiving sur-face is disposed below and is inclined downward and away from the open portions of the hanger hooks.  The entire apparatus is then raised upwards so that the hanger hooks slide down the receiving surface and are securely supported therefrom.          The hangers may then be carried wherever necessary.  The garment hangers are replaced on a supporting bar by lowering the apparatus down to the bar to bring the hook openings directly over it.  The apparatus is then moved downward and outward through the hanger hook openings, thereby leaving the hangers supported on the bar.
Patent CA-1084489-A (CA)
Inventor: LOUVAR JOSEPH F
IPC: C08G65/30
Filed: 1977-09-09
Granted: 1980-08-26
Abstract: Abstract of the Disclosure An improvement in the process for the removal of residual catalyst from polyether polyols is achieved by the use of a solvent wash and recovery system.
Patent CA-1098293-A (CA)
Title: Bn bonded bn fiber article from boric oxide fiber
Inventor: HAMILTON ROBERT S
IPC: H01Q1/42
Filed: 1977-09-27
Granted: 1981-03-31
Abstract: ABSTRACT OF THE INVENTION           A boron nitride bonded boron nitride fiber article and the method for its manufacture which comprises forming a shaped article with a composition comprising boron oxide fibers and boric acid, heating the composition in an anhydrous gas to a temperature above the melting point of the boric acid and nitriding the resulting article in ammonia gas.
Patent CA-1097688-A (CA)
Inventor: LAWS DEREK R J
IPC: C12C3/10
Filed: 1977-10-12
Granted: 1981-03-17
Abstract: ABSTRACT OF THE DISCLOSURE A method of providing a high quality iso-.alpha.-acid preparation is described. The method involves extracting a high quality primary extract containing .alpha.-acids from hops using liquid CO2 and isomerizing the .alpha.-acids in the primary extract.  The liquid CO2 extraction is performed at a sub-critical temperature of not less than -5°C.  The primary extract contains .alpha.-acids, .beta.-acids, hop oil and usually no significant amounts of other organic compounds originating from the hops.  In the preferred method the primary extract is not purified and the isomerization is performed by boiling an alkaline solution of the extract.  This boiling can be utilized to remove the hop oil.  The .beta.-acids can be readily removed by acidifying the solutionof iso-.alpha.-acid and filtering off the precipitated .beta.-acids.  The iso-.alpha.-acid preparation is of outstanding purity and can be added to beer after fermen-tation and in particular to bright beer after final filtration to provide bitterness.
Patent CA-1054988-A (CA)
Inventor: LEAKEY JOSEPH W
IPC: B65D5/32
Filed: 1977-11-04
Granted: 1979-05-22
Abstract: LEAK-PROOF BOX                      ABSTRACT OF THE INVENTION         A leak-proof box formed of three individual blanks having cooperating glue flaps secured at the corners of the box and sealer flaps which provide leak-proof seals at the upper box corners and along the upper ends of the box when a top closure panel is secured into position.
Patent CA-1111337-A (CA)
Inventor: GROVE LESLIE H
IPC: F23L7/00
Filed: 1978-01-05
Granted: 1981-10-27
Abstract: ABSTRACT Although it is known to improve the efficiency of combustion by feeding steam into an open flame, the present invention achieves an extra-ordinary increase in efficiency by feeding steam from the vicinity of the burner directly into the flame at a controlled rate such that the steam exceeds 15% (and preferably is 60% to 90%) of the oxygen theoretically required for complete combustion, but less than the rate at which the flame would be extinguished.
Patent CA-1079611-A (CA)
Inventor: GIGUERE A MARCEL
IPC: F03B13/18
Filed: 1978-03-15
Granted: 1980-06-17
Abstract: ABSTRACT      The invention provides for a floating island for pro-ducing power from waves.  The floating island is comprised of columns fixed to the ocean bed,and a float interconnected to the column by gimbal mounting means.  The gimbal mounting means allow the float to tilt in relation to the wave motion.          The up and down motion of the float on the column, in response to the waves, is translated into power by force linking means, and electrical generating means convert this power into use-ful electricity.  Suitable force linking means may be com-prised of pulley gear mechanisms, helical drive mechanisms, rack and pinion mechanism, induction mechanisms, and hydraulic mechanisms.
Patent CA-1102499-A (CA)
Inventor: RIGGE RONALD J
IPC: C08K3/34
Filed: 1978-04-05
Granted: 1981-06-02
Abstract: ABSTRACT OF THE DISCLOSURE Bauxites are rendered compatible with polymer compo-sitions employed in the carpet industry. Suitable bauxites, which can be employed as flame-retarding fillers, are characterized by a surface area of less than about 12 m2/g, a pH in aqueous suspension of more than about 6.5 and a particle size distribution, wherein less than about 15% by weight of the particles have a size of less than 3 microns. Bauxites having a surface area in the range of about 12-20 m2/g can also be rendered compatible by modifying their surfaces with a small but effective amount of modifier selected from inorganic phosphates, silicates, aliphatic and aromatic hydroxycarboxylic acids.
Patent CA-1071370-A (CA)
Title: Process for the manufacture of polytetrafluoroethylene molding powder from polytetrafluoroethylene granular resin
Inventor: MANWILLER CARL H
Filed: 1978-04-06
Granted: 1980-02-12
Abstract: POLYTETRAFLUOROETHYLENE MOLDING POWDER       Abstract of the Disclosure Finely divided polutetrafluoroethylene molding powder is disclosed having a remarkable combination of high apparent density and high moldability, the latter being re-flected as a small difference in specific gravity (.DELTA.SG) of standard moldings molded at high and low preform pressures. For example, molding powders having an average particle diam-eter (d50) of no greater than 60, a .DELTA.SG5-1 of no greater than 30 and apparent density of at least 600 g/l are disclosed. These molding powders are obtained from unique process steps involving either the fine powder type of polytetrafluoroethylene or the granular type of polytetrafluoroethylene as the starting material.  The fine powder type is compacted to a high degree, followed by partially decompacting the resultant compacted fine powder to the molding powder particle size desired.  When the granular type is the starting material, this is comminuted to the molding powder particle size desired, followed by separating the molding powder into hard and soft material fractions, fol-lowed by re-grinding the relatively coarse, hard fraction by itself to an average particle size of at least as small as the original combined fractions.  The resultant molding powder is useful in the manner of previous polytetrafluoroethylene molding powders with the advantage of requiring reduced mold height and molding pressure to achieve equivalent quality moldings.
Patent CA-1103481-A (CA)
Inventor: CLARKE GEORGE C
IPC: A01D34/68
Filed: 1978-04-14
Granted: 1981-06-23
Abstract: Abstract of the Disclosure A variable speed drive for a riding lawn mower or the like has a double pulley variable speed sheave assembly coupled between a driving pulley an d a driven pulley by first and second V-belts, respectively.  The sheave assembly is carried at one end of a bell crank which is centrally pivoted to one end of a pivot arm.  The pivot arm is pivotally connected to the vehicle frame and is biased to urge the sheave assembly toward an operat-ing position with the belts under driving tension.  A mechanical control link-age is connected to the other end of the bell crank, and is operable to shift the sheave assembly with respect to the driving and driven pulley to alter the sheave assembly  drive ratio in a manner such that belt tension varies with variations in operating speed.  The control linkage is operable to move the sheave assembly between a stopped position with both belts decluthed and a range of low to high speed operating positions, and is springably biased to urge the sheave assembly toward said stopped position.
Patent CA-1074697-A (CA)
Inventor: DARBY LACY B
IPC: E21B29/02
Filed: 1978-05-31
Granted: 1980-04-01
Abstract: ABSTRACT OF THE DISCLOSURE           Method and apparatus are disclosed for recover-ing submerged equipment, such as a guide base and wellhead used in offshore well operations.  A recovery tool, which includes an elongated member capable of extending from above the equipment into a well pipe and means for latching the recovery tool to the equipment and explosive means attached to the elongated member for severing the well pipe, is lowered from the water's surface to the equip-ment and then latched thereto.  The explosive is then detonated to sever the well pipe.  The recovery tool, together with the equipment and severed portion of the well pipe, is raised to the water's surface.
Patent CA-1098484-A (CA)
Title: Method and apparatus for separation of fluids with an  electric field and centrifuge
Inventor: PRESTRIDGE FLOYD L
IPC: B04C5/04
Filed: 1978-06-15
Granted: 1981-03-31
Abstract: ABSTRACT OF THE DISCLOSURE Fluids are separated from each other by passing their mixture through an electric field and centrifuge in sequence.  The drops of a first fluid dispersed in a second fluid are coalesced by the force of an electric field to a predetermined size.  The mixture is then passed into a centrifuge which develops the force to move the coalesced drops away from the other fluids of the mixture without reaching the value at which fluid shear forces, between the coalesced fluid and the fluid in which the coalesced fluid is dispersed, will fragment the coalesced drops.
Patent CA-1112567-A (CA)
Inventor: BROWN KENNETH
IPC: A61K9/12
Filed: 1978-07-17
Granted: 1981-11-17
Abstract: COMPOSITION ABSTRACT     Dispersions or suspensions of lecithin or a sorbitan or sorbitol ester in propellant 12, the dispersions or suspension containing no propellant 11 are described.  The use of the dispersions in pressure pack formulations of medicaments  is also described.
Patent CA-1105144-A (CA)
Inventor: TAN YOICHI
IPC: H04L1/00
Filed: 1978-08-14
Granted: 1981-07-14
Abstract: ABSTRACT A bit error detecting circuit for detecting errors in digital sig-nal transmissions is disclosed.  An input digital signal is fed to a clock recovery circuit which reproduces a clock signal to clock first and second decision circuits and a digital pattern generator.  The input digital signal is fed to the first decision circuit which produces a decision output based on a first reference level.  The input digital signal is also added to a predetermined binary code pattern produced by the pattern generator and the combined signal is fed to the second decision circuit which produces a deci-sion output based on a second reference level.  The two decision outputs are fed to respective inputs of an Exclusive-OR circuit.  The use of the pattern generating circuit contributes to very stable operation which can be further improved by incorporating a capacitor in the circuitry for adding the input signal and the predetermined signal.
Patent CA-1110044-A (CA)
Inventor: FEUILLADE JEAN-LOUIS
IPC: E01B9/30
Filed: 1978-08-17
Granted: 1981-10-06
Abstract: ABSTRACT OF THE DISCLOSURE           Apparatus for molding rail ties of the type which include one or more fastening tabs embedded in the concrete, the tabs being of the type having a shoe plate which rests on the tie and a projecting part, the mold having plates, which are preferably removable inserts,  for accepting the shoe portion of the tab, and flexible jaws which engage the projecting part of the tab to align it with respect to the mold.
Patent CA-1112258-A (CA)
Inventor: GEMMEL JOHN
IPC: A63B69/36
Filed: 1978-10-04
Granted: 1981-11-10
Abstract: HOCKEY STICK PRACTICE WEIGHT     ABSTRACT OF THE DISCLOSURE         Although practice weights exist for golf clubs and baseball bats, they cannot readily be adapted for use on hockey sticks because baseball bats and golf club handles increase in diameter from the butt end towards the head end and are circular in cross section so that the practice weight usually is a doughtnut shaped device with a central aperture which is slipped over the end of the handle and secured there-along by wedging action.  Centrifugal force during practice swings, increases this wedging action.  Hockey sticks are not only rectangular in cross section but decrease in size from the butt end towards the blade.  Furthermore, the butt end is always heavily taped making it impossible to engage and disengage this type of weight over the handle.  The present device is U-shaped to engage the hockey stick shaft or handle anywhere along the length thereof, and is clamped in position by means of clamp screws.  A flexible cover is secured by one end thereof to one side of said weight and is wrapped around the weight to cover the clamp screws and the weight and overlaps the one end and is fastened there-to by means of detachable friction fastening means.
Patent CA-1120557-A (CA)
Inventor: FARMER ROBERT L
IPC: H04L25/26
Filed: 1979-01-10
Granted: 1982-03-23
Abstract: 26,602 BALANCED TERMINATION FOR A TRANSMISSION LINE                    Abstract of the Disclosure Balancing of a "transmit" line and a "receive" line, which make up a half-duplex serial transmission line, is accomplished, where a first optical isolator is utilized to drive an electrical current signal over-the "transmit" line and a second optical isolator is utilized to receive electrical current signals from the "receive" line, by adding a third optical isolator to the circuit.  The third optical isolator is in an on condition when the first opti-cal isolator is in an on condition and is in an off condition when the first optical isolator is in an off condition.  The third optical isolator is used to make the "receive" and "transmit" lines both see a "signal ground", at the ends thereof connected to the first and second optical isolators, when current is flowing in the "transmit" line.  The third optical isolator is used to make the "receive" and "transmit" lines both see the same resistive element, at the ends thereof connected to the first and second optical isolators, when no current is flowing in the "transmit" line.  In this manner, a balanced transmission line is insured under all circumstances.
Patent CA-1103145-A (CA)
Inventor: BERGMAN ERIK
IPC: D21F7/00
Filed: 1979-01-29
Granted: 1981-06-16
Abstract: ABSTRACT OF THE DISCLOSURE           Paper trim which is cut from the edges of a web of paper is conveyed in a conduit by air at less than atmospheric pressure to a separating tank.  A fan downstream of the separating tank establishes the reduced pressure and a spray nozzle at the top of the tank sprays a pulp down onto the air and trim to separate the trim from the air stream and wash it down into a mixing tank.
Patent CA-1119602-A (CA)
Inventor: DUMAITRE BERNARD
IPC: C07D405/06
Filed: 1979-02-13
Granted: 1982-03-09
Abstract: NEW BENZODIOXAN DERIVATIVES, PROCESS FOR THEIR PREPARATION AND THEIR THERAPEUTIC APPLICATIONS.                  ABSTRACT OF THE DISCLOSURE.           This invention relates to the preparation of compounds having the formula :                        (I) in which R is selected from hydrogen, halogen, C1-6 alkyl, hydroxy, C1-6 alkoxy and acyloxy, and their pharmaceutically acceptable acid addition salts.    Said compounds are therapeutically useful as anti-hypertensive agents.
Patent CA-1117215-A (CA)
Inventor: SAVALLE RENE JR
IPC: H01Q3/08
Filed: 1979-04-20
Granted: 1982-01-26
Abstract: Abstract Of The Disclosure A mount for an earth station antenna includes an hour angle beam supporting the antenna for pivotal move-ment of the antenna about an hour angle axis determined by the position of the hour angle beam.  An adjustable azimuth strut is connected to the antenna for pivoting the antenna about the hour angle axis.  Two pairs of struts pivotally support the hour angle beam at spaced pivot points to permit adjustment of the hour angle axis so that the antenna can be pointed at a satellite.  The lower ends of -the two pairs of struts are pivotally connected to a foundation on hori-zontally spaced axes with the lower ends of the pair of struts connected to the lower pivot point on the hour angle beam being spaced farther away from the lower end of the beam than the lower ends of the other pair of struts, so that pivotal movement of the hour angle beam pivots the upper and lower ends of the beam along different arcs.  An ad-justable elevation strut pivots the two pairs of main support struts about their pivotal connections to the foundation to adjust the vertical positions of the upper ends of the struts to effect pivotal movement of the hour angle beam.