baber/WOPTO huggingface dataset:
Patent CA-2118882-A1 (CA)
Title: Sod roll-out machine with endless tracks
Inventor: WOERNER EDWARD E
IPC: A01B45/00
Filed: 1994-03-11
Abstract: A sod roll-out machine with endless tracks having a low center of gravity to prevent tipping on hills or inclines. The machine can be operated and steered by one person, wherein the roll of sod can be unwound in a forward or reverse direction. A pair of arms are elevated by hydraulic cylinders to facilitate the loading of a roll of sod to the distal ends of the arms, and to maintain the roll of sod slightly above the earth during the unrolling process. Due to the unique two track driving mechanism, the machine can be turned in place and operated in areas having limited accessibility. The tracks are driven by a motor, wherein each track can be individually controlled to be rotated in either a forward or reverse direction. A hydraulic pump is driven by the motor, wherein hydraulic fluid is provided to each of the hydraulic cylinders to control the elevation of each of the elevating arms. A cradle member is defined at the distal end of each arm for receiving a rod which is projecting out each end along an axis of a roll of sod. Hence, the loading and unrolling process is easy to perform. Large rolls of sod can be transported and unrolled thus minimizing the number of rolls of sod required to create a lawn. Further, the manual labor required by the operator is reduced as well.
Patent CA-2118914-A1 (CA)
Title: Method of stabilizing hygral expansion of protein fiber product
Inventor: KOIKE SACHIZUMI
IPC: D06M13/345
Filed: 1993-07-19
Abstract: A method of stabilizing a hygral expansion of a protein  fiber  product  which  comprises  the  steps  of preparing  a  water-soluble  solution  by  dissolving  a polyoxirane derivative of PEGDE or PPGDE having a water solubility of 95 wt.% or above in a solvent which has a solubility parameter of 13.0-10.1 (cal/cm3)1/2 and a boiling point of 101-190°C and is freely miscible with water, preparing a treatment solution by adding to the obtained solution  an  aqueous  solution  containing  at  least  two catalysts for oxirane compounds selected from the group consisting  of  dicyanodiamide,  hydroxy  carboxylic  acid salts, thiocyanic acid salts and L-cysteines, dipping a protein fiber product in the treatment solution followed by dehydration,  cross-linking the dehydrated fiber product with the polyoxirane derivative by heat treating the fiber product,  and removing by-products from the heat-treated fiber product.  This method serves to stabilize a hygral expansion of a protein fiber product with more certainty and remove difficultly water-soluble by-products formed by the heat treatment.
Patent CA-2119601-A1 (CA)
Title: Stabilizers for photothermography with nitrile blocking groups
Inventor: KREPSKI LARRY R
IPC: G03C1/498
Filed: 1994-03-22
Abstract: STABILIZERS FOR PHOTOTHERMOGRAPHY WITH             NITRILE BLOCKING GROUPS                        ABSTRACT OF DISCLOSURE Photothermographic compositions comprising a photographic silver halide, an organic silver salt, and a reducing agent for the organic silver salt, display improved stability in the presence of a compound having a nucleus of the formula:      wherein:      A represents any monovalent group for which the corresponding compound AH functions as a post-processing stabilizer, R1, R2, and R3, are independently hydrogen or methyl and with the proviso that R1 can represent an aryl group when R2 and R3 are hydrogen;      R4 is hydrogen or lower alkyl of from 1 to 4 carbon atoms; R5 and R6 independently represent hydrogen, an alkyl group, a cyclo-alkyl group, an aryl group or R5 and R6 taken together with the carbon atom to which they are joined form a ring of 4 to 12 atoms; R7 and R8 are independently hydrogen or lower alkyl of 1 to 4 carbon atoms; and n is 0 or 1.
Patent CA-2121946-A1 (CA)
Title: Portable sheet bending brake
Inventor: OLSEN DAVID B
IPC: B21D5/04
Filed: 1994-04-22
Abstract: Abstract of the Disclosure A sheet bending brake comprises a frame having a fixed jaw and a movable jaw.  The fixed jaw defines a clamping surface and the movable jaw has a clamping surface movable between workpiece clamping and non-clamping positions relative to the clamping surface on the fixed jaw.  A bending member is hingedly connected to the fixed jaw.  A handle is pivoted to the frame.          A plurality of axially extensible links are provided.  Each link is pivoted at one end to the handle and at the other end to the movable jaw such that in one position of the handle, the links move the movable jaw out of clamping position, and in another position of the handle, the movable jaw is in clamping position.  Each link includes an upper block connected to the frame, a shaft extending from the upper block and rotatable therein and threaded into a lower block pivoted to the movable jaw.  The shaft has a socket connection in the upper end thereof accessible through an opening in the upper block.
Patent CA-2122669-A1 (CA)
Title: Yeast-leavened dough crusts and preparation process
Inventor: WOOD ROBERT WILLIAM
IPC: A21D13/00
Filed: 1994-05-02
Abstract: An improved process for preparing thin, yeast-leavened dough crusts provides improved products with reduced fragility. The process comprises: preparing a dough, preferably including an antimycotic; holding the dough at a suitably low temperature which is effective to develop the dough while maintaining good forming characteristics; dividing the dough into weighed pieces; finally proofing the weighed dough pieces; pressing the weighed dough pieces between upper and lower, differentially-heated platens to form and condition a flat dough preform, the starch in the upper surface being partially gelatinized and the lower surface being strengthened. Preferably, the product baked and then packaged in a heat-sealed plastic covering.
Patent CA-2122789-A1 (CA)
Title: Substituted pyridines and 2-oxo-1,2-dihydropyridines
Inventor: FEY PETER
IPC: C07D213/60
Filed: 1994-05-03
Abstract: Substituted pyridines and 2-oxo-1,2-dihydropyridines Abstract Substituted pyridines and 2-oxo-1,2-dihydropyridines are prepared  by  reaction  of  correspondingly  substituted halogenobenzenes  with  tetrazolylboronic  acids.  The substituted  pyridines  and  2-oxo-1,2-dihydropyridines according to the invention can be employed as active compounds in medicaments, in particular for the treatment of arterial hypertension and atherosclerosis.
Patent CA-2124976-A1 (CA)
Title: Class 'd' audio speaker amplifier circuit with state variable feedback control
Inventor: WAGNER RANDALL M
IPC: H03F3/217
Filed: 1994-06-02
Abstract: ABSTRACT     An audio amplifier for telephone-sourced audio signals that drive paging speaker employs 21 class D amplifier and a state variable feedback network, which monitors voltage and current levels of an audio output filter to which the paging speakers are coupled, so as to adjust the operation of the amplifier circuit, to compensate variations in the speaker loading of the audio  output filter. The class D amplifier includes a pulse width modulator, which control the switching of a power Hbridge-configured switching circuit. The switching circuit sources and sinks current with respect lo the paging speaker load. The output of the power bridge switching circuit is a high energy square wave-type signal, which is filtered in a downstream audio filter to remove the switching transients and preserve the desired voice paging signal for application to the paging speakers. The state variable feedback network monitors variations in current flow and voltage at a plurality of circuit locations.
Patent CA-2126051-A1 (CA)
Title: Registration system for web feeding
Inventor: HINTON GAYLEN R
IPC: B65C9/42
Filed: 1994-06-16
Abstract: ABSTRACT OF THE DISCLOSURE An apparatus and method are disclosed for controlling the motion of a machine system so as to cut individual lengths from a web having graphics on predetermined web positions and which allows the use of an inexpensive AC induction motor.  An AC induction motor (42) has an output power shaft for imparting the motive force necessary to drive the machine system, such as a web feeding system.  A sensor (29) is operatively coupled to the AC motor for determining the position of the motor during system operation.  A controller (26) is operatively connected to the sensor and motor and forms a closed loop control circuit. The controller changes the feedback loop characteristics of the closed  loop  control  circuit  during  a  stop,  hold or  start condition of the motor.   By adding an externally generated compensating signal to the input of the feedback loop,  the controller also minimizes acceleration error.   The controller also limits the value of a signal reaching the feedback loop of the control circuit to a given maximum value so as to eliminate any over-reaction of the system, while allowing a signal having less than a given threshold value to proceed unaffected to the feedback loop.
Patent CA-2126797-A1 (CA)
Inventor: QUI YANPING
IPC: B65H75/50
Filed: 1994-06-27
Abstract: The invention provides spirally wound paperboard cores for winding of textiles and other materials and which have enhanced high speed winding capability.  The spirally wound paperboard plies forming the body wall of the paperboard core have a predetermined spiral winding angle with respect to the axis of the cylindrical body wall of greater than 71 degrees.  In winding cores having a relatively large ID of between about 4.8 in. (120 mm) and 6 in. (150 mm), the paperboard plies forming the spirally wound cores have a winding angle of greater than 74 degrees.  In winding cores having a lower ID of less than 4.8 inches (120 mm), all of the paperboard plies have a width of 3.5 in.  (89 mm) or less and a spiral winding angle of greater than 71 degrees.
Patent CA-2128430-A1 (CA)
Title: Production of Hydrogen Peroxide
Inventor: CHUANG KARL T
IPC: C01B15/029
Filed: 1993-01-21
Abstract: The invention a relates to hydrogen peroxide manufacture, and catalyst therefor, by direct oxidation of hydrogen with oxygen in an acidic aqueous medium. The catalyst includes a Group VIII metal on a partially hydrophobic, partially hydrophilic support, such as Pd on fluorinated carbon. Improvements in H2O2 selectivity and catalyst stability are achieved by adding a source of sodium and chloride ions to the reaction medium and, in the case of a fluorinated carbon support, adding a source of fluoride ions.
Patent CA-2129866-A1 (CA)
Inventor: MIKI JUN
IPC: B01J23/847
Filed: 1994-08-10
Abstract: A catalyst for producing phenols consists essentially of; an iron oxide; a nickel oxide; at least one first oxide selected from the group consisting of a vanadium oxide and a molybdenum oxide; and at least one second oxide selected from the group consisting of an alkali metal oxide and an alkaline earth metal oxide.      The catalyst is used to produce phenols from benzoic acid or an alkyl benzoic acid.
Patent CA-2130126-A1 (CA)
Title: Replacement endless vehicle tracks
Inventor: EDWARDS JOHN W
IPC: B62D55/24
Filed: 1994-08-15
Abstract: ABSTRACT OF THE DISCLOSURE       A replacement endless drive track for use on a heavy duty tracked vehicle such as a bulldozer or tank includes a reinforced polymeric drive belt, two parallel sets of closely spaced rail blocks adjacent the drive belt, a plurality of drive pins extending between opposing ones of the rail blocks, and supporting members adjoining the drive belt and the rail blocks.  The rail blocks are substantially Z-shaped, such that a forward portion of one rail block is offset and overlaps the rearward portion of a directly adjacent rail block.   The rail blocks, drive pins and drive treads may be comprised of a polymeric material which is harder than the polymeric material of the drive belt.   The drive pins may alternatively be disposed at a lateral end of the supporting members to accommodate a tracked vehicle with peripherally disposed drive sprockets.   In addition, the frame of the tracked vehicle  may  be  adapted  to  provide  for  attachment  of widened rollers which roll  directly  on the  track  for smoother and quieter travel.  In an alternative manner, a conventional endless track may be modified to accommodate the widened rollers by fixing a plurality of supporting pads to the grousers of the endless track, the widened rollers  riding directly  on  the  supporting pads.   The conventional  endless track may be  further modified to include rotatable bushings over the existing pins or pin and bushing arrangements.
Patent CA-2134993-A1 (CA)
Title: Tallon toothbrush
Inventor: TALLON BEVERLEY ANNE
IPC: A46B5/00
Filed: 1995-09-21
Abstract: Those toothbrushes in use today have straight handles or with a slight deviation from straight.   For this invention, the toothbrush handle is curved and thus more easily fits into the gum line, providing more effective and more comfortable brushing.
Patent CA-2135710-A1 (CA)
Title: Melatonin derivatives for use in treating desynchronization disorders
Inventor: FLAUGH MICHAEL E
IPC: A61K31/40
Filed: 1994-11-14
Abstract: The present invention provides a method of treating desynchronization disorders using various melatonin analogs.  The invention further provides pharmaceutical formulations suitable for use in such method.
Patent CA-2138432-A1 (CA)
Title: Skills hockey game
Inventor: DESMARAIS JAMES P
IPC: A63F7/06
Filed: 1994-12-19
Abstract: This invention relates to an indoor hockey game to be played by two(2) competing players, each player manipulating a mannequin located on the playing surface. Whereas such games have been produced and used in the past, the figures representing the goalie  and goal scorer have been severely restricted in their movements, such movements being generally restricted to the rotation about the figures vertical axis or where a combination of movements were provided, the combination of movement available did not provide realistic game situation. The uniqueness of my invention lies in the pivoting of the mannequins arms and legs thus allowing freedom of movement of the mannequin and its ability to perform realistically under the control of its operator. In particular the goal scoring, or offensive mannequin is provided with independent lateral and rotational movements allowing complete freedom of offense. The mannequin has a hand control attached to the top part of the shoulders . This hand control device controls the circular pivotal horizontal and vertical movements as well as having a trigger that controls the swivel action of the shoulders. The trigger is connected to a cable , which , runs to the lever that is attached to the swivel bracket, the bracket is attached to the arm support that houses the arms that are attached to the hockey stick. , when the trigger is pulled the chain reaction causes the stick to make contact with the puck projecting it towards the goal tender. What makes this mannequin unique is the ability to propel the puck to any desired direction of the goalie net and also being in the form of a mannequin the action of shooting the puck is identical to that of a real life like hockey player, velocity and type of shot are controlled by offensive player. Not included in drawings,  the goal scoring mannequin could be made to move all over the surface to resemble skating like motions as well as having the same motions  and movements as previously described.
Patent CA-2139106-A1 (CA)
Title: Internal combustion engine block having a cylinder liner shunt flow cooling system and method of cooling same
Inventor: KENNEDY LAWRENCE C
IPC: F02B75/02
Filed: 1993-05-24
Abstract: An internal combustion engine block (10) having a circumferential channel (34) formed between the cylinder block (10) and a cylinder liner (14), surrounding and adjacent to the high temperature combustion chamber region of the engine, to which coolant flow is diverted from the main coolant stream to uniformly and effectively cool this critical area of the liner. The high ve-locity flow of the main coolant stream, as it passes the end of the cylinder liner adjacent the combustion chamber provides a re-duced pressure head at the port interconnecting the outlet end of the circumferential channel with the main coolant stream. Chan-nel entrance holes (36), located upstream at relatively stagnant regions in the main coolant flow, are at a higher pressure head than the channel exit port (38), thus inducing flow through the channel at a high velocity flow.
Patent CA-2139408-A1 (CA)
Title: Method for manufacturing a carpet having a secondary backing substantially impervious to liquids and the resultant carpet
Inventor: HEIM WILLIAM W
IPC: D06N7/00
Filed: 1994-12-30
Abstract: This invention relates to methods for making a carpet having a secondary backing which is substantially impervious to liquids.  The methods involve applying a repellent finish onto the secondary backing material and drying the finish.  The finish may be applied as foam to the secondary backing, against the force of gravity, by means of a press roll.  This invention also includes the resultant carpets prepared from these methods.
Patent CA-2140001-A1 (CA)
Title: Metal ion doped polymers as waveguides and holographic recording media
Inventor: MANIVANNAN GURUSAMY
IPC: C08L29/04
Filed: 1995-01-11
Abstract: Cr (VI) and Fe (III) metal ion doped photosensitive polymer materials are used as holographic recording medium and to make optical waveguides. To fabricate the metal ion doped photosensitive polymer materials, 20 grams of poly(acrylic acid) /7 grams of poly(vinyl alcohol) are dissolved in 100 ml of deionized water pre-heated at a temperature of about 60°C. Ammonium or potassium dichromate (0.2 to 2.2 wt.%)/ferric chloride (0.5 to 7 wt.%) are added to the aqueous polymer solution. The aqueous polymer solution is stirred at a temperature of approximately 20°C until a uniform mixture is obtained. The stirred aqueous polymer solution is gravity settled or a substrate is spin coated with this solution which is then allowed to dry at a temperature of 20°C and a relative humidity of 35-45% to obtain the metal ion doped photosensitive polymer material.
Patent CA-2140632-A1 (CA)
Inventor: LIU RU-SHI
IPC: C01G21/00
Filed: 1993-07-21
Abstract: 2140632 9402947 PCTABS00030 A superconductor that is free of Tl and may have a sharp transition from metallic to superconducting behaviour at temperatures up to about 80K at least is characterized by the formula (PbaA1-a)(SrbBa1-b)2(CacB1-c)Cu2O7 in which at least half the A atoms are Hg and the remainder, if any, are selected from one or more of Zn, Cd, Tl, Sc, Mg, and Cu; B is selected from Y and the rare earth elements; a is from 0.3 to 0.7;  b is from 0 to 1; and c is from 0.2 to 0.5 (all limits inclusive).
Patent CA-2142087-A1 (CA)
Title: Reusable packaging, shipping and display system
Inventor: HOEDL HERBERT
IPC: B65D21/06
Filed: 1995-02-08
Abstract: A reusable and returnable container system for packaging, shipping and displaying goods comprises a tote having an opening in a bottom surface and an upper opening. The opening in the bottom surface has an abutment for supporting a tray inside the tote. The tote is preferably stackable and nestable with like totes. The tray is adapted to carry goods and is insertable into the tote for resting on the abutment. The tote is easily separated from the tray without first removing the goods. Each tray can be transferred to a shelf for displaying the goods for selection by consumers. After the tray has been emptied, each tray can be stored in a stack of nested totes for returning for re-use.
Patent CA-2142606-A1 (CA)
Title: Papermaking belt having semicontinuous pattern and paper made thereon
Inventor: AYERS PETER G
IPC: D21F3/00
Filed: 1993-08-16
Abstract: A secondary belt for papermaking. The belt has a frame-work of protuberances (20) arranged in a semicontinuous pattern to provide a semicontinuous pattern of deflection conduits (40). The semicontinuous pattern is distingushed from the discrete and continuous patterns of the prior art. The protuberances may be generally parallel, or may provide individual cells within the deflection conduits between the protuberances. Also disclosed is the paper made on such a scondary belt.
Patent CA-2142833-A1 (CA)
Title: Stabilisation of radionuclides into wastes
Inventor: HOLLITT MICHAEL J
IPC: G21F9/16
Filed: 1993-08-13
Abstract: The specification discloses a process far stabilising radionuclides extracted during the upgrading of minerals. The process comprises forming a composition of a radionuclide and a component and roasting the composition so that the component forms a crystalline phase having a structure that binds the radionuclides. Suitable components include a compound of a lanthanide and/or phosphorus and zirconia. Zirconia in its cubic form is useful in stabilising uranium and thorium.
Patent CA-2146124-A1 (CA)
Title: Method and apparatus for producing metal strip
Inventor: TANG NAI-YONG
IPC: B22D11/12
Filed: 1993-10-04
Abstract: A method and apparatus for the casting of molten metals and particularly molten lead and wide-freezing range lead alloys as strip for use in battery grids. The strip (10) is cast on a chilled casting surface of a rotating drum from a pool of said molten metal contained in a tundish (14) having a graphite lip insert seated therein cooperating with the casting surface adjacent to the tundish (14) to form and contain the pool of said molten metal. The tundish (14) preferably contains a feed chamber, a return chamber, and a diverting chamber, said feed chamber and the diverting chamber effectively removing turbulence from the molten feed and said return chamber having a vertically adjustable weir dividing the return chamber from the diverting chamber for controlling the surface level of the pool of molten metal in the diverting chamber and the lip insert and for diverting a flow of molten metal to the return chamber. A preferred lead alloy is a low antimony-lead alloy which is cast into strip (10) and is subjected to a heat treatment (98) to permit expansion and shaping in subsequent production of expanded mesh battery grids. The battery grids produced by the method have improved electrochemical properties such as corrosion resistance and resistance of growth.
Patent CA-2146397-A1 (CA)
Title: Cationisation process and a reagent for use therein
Inventor: FITTON MICHAEL G
IPC: B01D61/44
Filed: 1995-04-05
Abstract: The present invention relates to a process for the preparation of a cationic reagent suitable for use in the preparation of cationic starch. The present invention also relates to cationic reagents containing significantlyless chloride ions. The invention also relates to cationic starches containing less chloride ions.
Patent CA-2147125-A1 (CA)
Inventor: CARROLL MAX LAMAR JR
IPC: G01N3/02
Filed: 1993-10-12
Abstract: Disclosed are a method and apparatus for determining the stretching characteristics of thermoplastic articles such as bottles on a consistently accurate basis by making an initial measurement such as dimension or volume, stretching the article to the onset of strain hardening, and correlating the measurements to a physical property such as inherent viscosity, intrinsic viscosity or molecular weight of the thermoplastic article.
Patent CA-2149199-A1 (CA)
Title: Preparation of cast elastomers using aiminocrotonate-terminated polyether chain extenders
Inventor: MAFOTI ROBSON
IPC: C08G18/67
Filed: 1995-05-11
Abstract: This invention relates to a process for preparing polyurethane elastomers comprising reacting in an open mold at an isocyanate index of about 90 to about 110 (a) an isocyanate prepolymer having an isocyanate content of about 2 to about 15% by weight and a molecular weight of from about 500 to about 5000 prepared by reaction of (i) at least one organic polyisocyanate with (ii) at least one isocyanate-reactive compound having at least two isocyanate-reactive groups and a molecular weight of from about 250 to about 4000; with (b) certain aminocrotonate-terminated polyethers having a molecular weight of from about 500 to about 1500; (c) optional chain extenders and/or crosslinkers other than aminocrotonate-terminated polyether (b); and (d) optional auxiliaries and/or additives.