baber/WOPTO huggingface dataset:
Patent CA-1149902-A (CA)
Inventor: WILD ALFRED
IPC: H04L25/12
Filed: 1980-06-24
Granted: 1983-07-12
Abstract: Abstract A d.c. telegraph transmitter comprises a transmitter keying circuit (ST) and a current regulating circuit, op-erating on the continuous regulator principle, which serves to maintain the line current constant, so that the power loss which is converted into heat is small. The current regulating circuit (IK) receives power from a telegraph battery (TB) or other voltage source via a switching stage ( SU, sl)which connects only one tapping of the telegraph battery to the in-put (E) of the current regulating circuit.  The voltage pres-ent at the input (E) of the current regulating circuit (IK) is automatically increased or reduced in stepped fashion in dependence upon the transmitting voltage which occurs on the line (L) (Fig.1).
Patent CA-1141370-A (CA)
Inventor: BERGMAN FRED S
IPC: H02G1/04
Filed: 1980-07-07
Granted: 1983-02-15
Abstract: ABSTRACT         An apparatus for automatically threading successive closed framed openings by helicopter towing a line equipped with a separable coupling.  The invention utilizes a short cable loop pre-threaded through each closed frame such as the throat of a stringing block which cable loop is provided at its ends with coupling halves releasably supported at the opposite ends of a trough overlying the framed opening to be threaded.  A heli-copter is manoeuvred to drop the towing line coupling into a trough where its halves are automatically separated and there-after recoupled to a respective end of the cable loop. Subsequently, the forward coupling can be similarly separated for insertion of a second cable loop in the towing line at the next threading apparatus in the helicopter's path of travel.
Patent CA-1161057-A (CA)
Inventor: KOENIG KARL-HEINZ
IPC: C07C265/06
Filed: 1980-08-04
Granted: 1984-01-24
Abstract: O.Z. 0050/034,039 Abstract of the Disclosure:   1-Monohalogenated iso-cyanates, and a process for the preparation of mixtures of 1-monohalogenated isocyanates and 1,2-unsaturated isocyanates by reacting 1-monohalogenated carbamic acid halides or isocyanates with a halogen-free isocyanate or diisocyanate or by reacting 1,2-unsaturated isocyanates with a carbamic acid halide or a bis-carbamic acid halide, The 1,2-unsaturated isocyanates and 1-mono-halogenated isocyanates prepared according to the inven-tion are valuable starting materials for the preparation of pest control agents, dyes, drugs, water-repellent textile finishes, detergents, plastics, bleaches and adhesives.
Patent CA-1152659-A (CA)
Inventor: ABBOTT ROBERT P
IPC: H04Q11/08
Filed: 1980-08-25
Granted: 1983-08-23
Abstract: 16. BROADCAST AND ALTERNATE MESSAGE TIME          SLOT INTERCHANGE         Abstract of the Disclosure It is common that communications such as telephone calls between calling and called lines be made by sharing a single communications path on a time division basis.  Each call is assigned to a shared path for a short time interval, also called a time slot.  It is known to interchange an input time slot to a different output time slot.  Unfortunately, known time slot inter-change arrangements insert an input sample in a single output time slot.  The instant time slot inter-changer extends an input sample onto a plurality of output time slots for broadcasting a sample through a plurality of locations.  Also, the instant time slot interchanger may selectively insert an alternate message, e.g., an error message, in an output time slot.
Patent CA-1151081-A (CA)
Inventor: JOHNSON ALLEN S JR
IPC: B01D46/04
Filed: 1980-08-25
Granted: 1983-08-02
Abstract: BAG-TYPE FILTER APPARATUS WITH INTERNAL AIR DIFFUSER Abstract of the Disclosure The cleaning of a tubular filter bag when a periodic reverse flow or purging air is directed into the outlet end of the filter bag is significantly enhanced in accordance with the present invention by providing interiorly of the filter bag means 30 for diffusing and distributing the reverse flow of purging air throughout the filter bag. More particularly, a hollow diffuser tube 30 is provided extending longitudinally within the tubular supporting cage 26 of the filter bag 14 with one end of the diffuser tube communicating with the outlet end of the filter bag.  The diffuser tube has perforations 33 therein located for diffusing and distri-buting air throughout the filter bag when a periodic reverse flow of purging air is directed into the outlet end of the filter bag and into the diffuser tube.
Patent CA-1131852-A (CA)
Title: Impact protective suit for racquetball
Inventor: CROTEAU JAMES WILLOW CRESCENT
IPC: A41D13/015
Filed: 1980-09-12
Granted: 1982-09-21
Abstract: Abstract An impact-protective suit for racquetball that enables the wearer to play aggressively, that permits free unrestricted movement during play and that readily vents body heat.  The suit includes a shirt portion and a pants portion, which are made of an outer material, a lining, and a selectively located impact protective material intermediate the outer material and the lining. The impact-protective material completely covers only the back side of the wearer, the front side of the wearer thereby being uncovered by the protective material.
Patent CA-1151161-A (CA)
Inventor: UMEZAWA HAMAO
IPC: C07H15/236
Filed: 1980-10-30
Granted: 1983-08-02
Abstract: TITLE OF INVENTION:     New process for the production of tobramycin ABSTRACT OF THE DISCLOSURE: 3'-Deoxykanamycin B, namely tobramycin is produced in an improved yield with a reduced reaction time under moderate reaction conditions, starting from a penta-N-protected 3'-mono-O-alkyl-, aralkyl- or arylsulfonylated derivative of kanamycin B in which all the 1, 3, 2' and 3"-amino groups and possibly the 6'-amino group have been protected by an arylsulfonyl group, especially tosyl group; the 3'-hydroxyl group of kanamycin B has been alkyl-, aralkyl- or arylsulfonylated; the 4"- and 6"-hydroxyl groups have been blocked with a di valent hydroxyl-protecting group; and possibly the 4'-hydroxyl group and 6'-amino group have been blocked by being converted into the form of a 4',6'-cyclic carbamate formed between the 4'-hydroxyl group and the 6'-amino group, by subjecting to a process essentially comprising reaction of said protected kanamycin B derivative with a metal halide for a reaction time of 30 min. to 2 hours at a reaction tem-perature of O°C-150°C to produce the corresponding 3'-halo compound, reductive replacement of the 3'-halo group by hydrogen and deprotection.
Patent CA-1149255-A (CA)
Inventor: FOX DEREK J
IPC: C11D11/00
Filed: 1980-11-26
Granted: 1983-07-05
Abstract: Abstract of the Disclosure A cleaning composition and method for removing road film from transportation vehicles without the necessity of mechanical brushing or wiping of the surface using high pressure spray equipment.  The composition comprises 2 to 30% by weight of chelating agent; 1 to 12% by weight of a bis(ethoxylated) quaternary ammonium compound; 0.5% to 5% by weight ethoxylated alcohol nonionic; 0-5% by weight sodium metasilicate and water. This concentrate is diluted with water and applied to the surface at a pressure of above 400 psi.
Patent CA-1167112-A (CA)
Inventor: BOWLES HOWARD R
IPC: H05B6/06
Filed: 1980-12-19
Granted: 1984-05-08
Abstract: ABSTRACT OF THE DISCLOSURE             A sensor arrangement for an induction heating apparatus which monitors the position of a cooking utensil on a work surface and disables an inverter circuit powering a work coil if the utensil is located at an off-center position with respect to the coil, or if no utensil is present upon the cooking surface.  The sensor arrangement comprises a plurality of sets of sensors at successively larger distances from the center of the work surface.  Each set comprises a plurality of sensors arranged on an imaginary circle substantially equidistant from each other.  Each sensor operates to provide an indication of the presence or absence of a utensil directly above the sensor.  The sensors are monitored by a logic arrangement which indicates whether a utensil is properly centered, based on the fullness or degree of activation of the various sets.  If the utensil is not properly positioned, the inverter is disabled and a signal advises the user of this condition. Additionally, the logic circuit determines the size of a properly positioned utensil and generates a signal which may be utilized to alter the output of the work coil in accordance therewith.
Patent CA-1153574-A (CA)
Inventor: DAY SAN-TONG
IPC: E05B37/16
Filed: 1980-12-30
Granted: 1983-09-13
Abstract: ABSTRACT OF THE DISCLOSURE         A mechanical digital lock operable through a series of mechanical operations actuated by the depression of digital keys and comprising an intellectual combination of essential mechanisms, including a plurality of keys, digital selectors, identifiers, locking means and automatic resets.  The lock cannot be opened unless the predetermined digitals are sequentially depressed.          Once the lock is opened, it is automatically reset.  A change of combination of digitals can easily be effected manually without any tool.  With structure the lock is highly reliable.
Patent CA-1155603-A (CA)
Inventor: BURSTEIN ALBERT H
IPC: A61F2/38
Filed: 1981-01-09
Granted: 1983-10-25
Abstract: ABSTRACT OF THE DISCLOSURE A box-like recess between the condylar portions of the femoral component has a transverse convexly curved cam follower portion at the posterior extremity of a superior wall which engages a concave cam surface at the inferior portion of the posterior surface of a tibial post that extends up from the plateau surface of the tibial component into the recess.  The camming action between the cam follower and cam surface forces the zones of contact between the condylar portions of the femoral component and concavities in the tibial component posteriorly as the leg approaches full flexion, thereby increasing the range of flexion without interference between posterior surfaces of the femur and the tibial component and preventing anterior dislocation of the femur.  The plateau of the tibial component slopes inferiorly and posteriorly, also to increase the range of flexion without interference.
Patent CA-1156117-A (CA)
Inventor: ROTHFUSS ROBERT G
IPC: A61B17/115
Filed: 1981-02-03
Granted: 1983-11-01
Abstract: A CUT-THROUGH BACKUP WASHER FOR THE SCALPEL OF AN INTRALUMINAL     SURGICAL STAPLING INSTRUMENT ABSTRACT OF THE DISCLOSURE A backup washer for the cylindrical scalpel of an intraluminal surgical stapling instrument of the type used to join tubular body organs.  The washer comprises an annular member of semi-rigid material having an annular groove formed therein extending from the distal surface of the washer inwardly toward the proximal surface of the washer facing the scalpel. As a result, the washer comprises two spaced annular walls joined at their proximal ends by a thin web providing a backup surface for the scalpel. When the scalpel is advanced by the surgical stapling instrument it will abut and cut through the thin web of the backup washer.  When the scalpel cuts through the backup washer web the force required to further advance the scalpel abruptly and noticeably diminishes giving the surgeon clear tactile indication that the surgical staples have been implanted and clinched in the tissue of the tubular body organs being joined and that the scalpel has completely severed the excess tissue.
Patent CA-1132847-A (CA)
Title: Overhead tilting door assembly
Inventor: DOLHAINE ALFRED W J
IPC: E05D15/40
Filed: 1981-03-23
Granted: 1982-10-05
Abstract: "OVERHEAD TILTING DOOR ASSEMBLY"    ABSTRACT OF THE DISCLOSURE An overhead tilting door assembly is provided, particularly for use in large buildings.  The door assembly includes a door member having a quadrant member attached to each of its upper corners.   Generally horizontal support members are provided on either side of the door member extending rearwardly therefrom.  Each quadrant member is rolled along a support member to tilt the door between open and closed positions. A drive means is pivotally attached to a quadrant member for tilting the door member and for locking the door member against movement, unless being tilted by the drive means.  The assembly also includes anti-skid means between the quadrant members and the support members to force the quadrant members to roll and not skid along the support members.
Patent CA-1153951-A (CA)
Inventor: CAMPBELL DOUGLAS D
IPC: D06N7/00
Filed: 1981-06-18
Granted: 1983-09-20
Abstract: 168,683 CAN/RF     FLOCKED MAT      Abstract A mat formed of a web comprising a resilient three-dimensional network of polymeric maternal which has been flocked throughout and adhered to a support backing.
Patent CA-1149233-A (CA)
Inventor: SEITZ ROBERT F
IPC: E05D15/10
Filed: 1981-08-24
Granted: 1983-07-05
Abstract: Title of the Invention AUXILIARY CRANK END Abstract of the Disclosure A railway house car has plug doors, each with a pair of rotationally driven top operating cranks and an auxiliary crank in engagement with a c-shaped top retainer.  The auxiliary crank is mounted between the operating cranks on a lower vertical crank end for rotation relative to the door.  An upper vertical crank end of the auxiliary cranks has mounted thereon a front sled moveably engaging the inner surface of the down-wardly extending front flange of the top retainer and a bottom sled moveably engaging the upper surface of the laterally outwardly extending lower flange of the top retainer.  The bottom sled and lower flange extend out-wardly beyond the front sled and front flange to resist the auxiliary crank's outward pivotal movement and separation from the retainer and any door displacement as a result.  The sleds provide large load bearing surface areas to resist distortion and are spaced and mounted on the common vertical axis of the upper vertical crank end for rotation independent of each other.
Patent CA-1163847-A (CA)
Inventor: LEFFERTS JOHANNES
IPC: D21F1/00
Filed: 1981-10-22
Granted: 1984-03-20
Abstract: ABSTRACT OF THE DISCLOSURE         The invention relates to a sieve belt composed of a multiplicity of helices made of a thermosetting synthetic resin material, especially synthetic resin wire.  Adjacent helices are interlocked so that the windings of one helix enter between the windings of the adjacent helix.  Through the channel thus formed by the helices a pintle wire is passed.  For controlling the air permeability of the sieve belt the hollow interiors of the helices are filled with filler material.  The invention further relates to a method for producing such a sieve belt.
Patent CA-1162262-A (CA)
Inventor: DOUTY GEORGE H
IPC: H01R12/50
Filed: 1981-11-03
Granted: 1984-02-14
Abstract: ABSTRACT:      A multi-plane connector is disclosed for making a pluggable  interconnection between  conductive planes of adjacent pairs of stacked circuit boards.   The subject connector can be used on any mating edge of a circuit board and does not require the use of either a back plane or a mother board.   The subject connector can be especially effective as an add-on to original equipment but also can be used as a spacer and interconnect in new equipment.  The subject connector has very cost effective stamped and formed contacts providing great economy for the connector.
Patent CA-1175637-A (CA)
Inventor: FLEMMERT GOSTA L
IPC: C01B33/18
Filed: 1981-12-08
Granted: 1984-10-09
Abstract: ABSTRACT OF THE DISCLOSURE         Process and apparatus are provided for preparing finely-divided silicon dioxide having high thickening capacity and good thixo-tropic properties by reaction of silicon fluoride in the vapor phase with water vapor, combustible gas and free oxygen-containing gas in a flame reaction zone to form silicon dioxide and hydrogen flouride while cooling the gaseous reaction mixture in that portion of the reaction zone adjacent the base of the flame by contact with a cooling surface maintained at a temperature below 500°C but above the dew point of the reaction waste gases generated in the flame reaction.
Patent CA-1180124-A (CA)
Inventor: RAVEL PAUL
IPC: G06F17/18
Filed: 1981-12-08
Granted: 1984-12-27
Abstract: A DEVICE FOR COMPUTING THE PSEUDO-VARIANCE    OF THE INSTANTANEOUS PERIODS OF AN     ALTERNATING-CURRENT SIGNAL                    Abstract of the Disclosure The device for computing the pseudo-variance   (Pi+1 - P1)   of the N instantaneous periods Pi of an alternating-current signal Se and especially for detecting a signal in the presence of noise comprises means for detecting the sign of the difference Pi+1 - Pi, means for adding the quantity 2(Pi+1 - Pi) to the quantity P1 + 2   (Pj+l - Pj)  (with 1 ? j ? i and Pj+l - Pj) when Pi+l is greater than Pi, and means for subtracting the value PN from the value P1 + 2   (Pi+1 - Pi) (with Pi+1 > Pi), the pseudo-variance to be determined being provided by the subtraction means.
Patent CA-1208844-A (CA)
Inventor: HOWES JOHN G B
IPC: A01N43/36
Filed: 1981-12-11
Granted: 1986-07-29
Abstract: A B S T R A C T       Polymers containing 55 to 90% of units of the formula (A):                 (A) wherein R  is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms; and 10 to 45% of units of the formula (B) and (C):                  (B) wherein R2 is a hydrogen group of 5 to 19 carbon atoms, for example n-C11H23, R3 is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, R4 is a hydrocarbon group of 5 to 19 carbon atoms, for example n-C11H23 and X- is an anion and which contain at least 10% of units of formula (C) and are free from polymeric species having a molecular weight of less than 10,000 are described.  The polymers possess antimicrobial activity agains common pathogens.          Isotonic aqueous solutions containing 0.002 to 0.025% of the polymer are suitable for the sterilisation of contact lenses for example by immersion of the lens in the solution overnight.  Hydrophilic ointments containing from 0.002 to 0.25% of the polymer are suitable for the treatment  of bacterial infection of lesions of the skin such as burns and ulcers.
Patent CA-1209429-A (CA)
Inventor: TAFF DOUGLAS C
IPC: F28D20/02
Filed: 1982-01-07
Granted: 1986-08-12
Abstract: S P E C I F I C A T I O N    MODULAR PASSIVE SOLAR ENERGY HEATING UNIT EMPLOYING PHASE    CHANGE HEAT STORAGE MATERIAL WHICH IS CLEARLY TRANSPARENT          WHEN IN ITS HIGH-STORED-ENERGY LIQUID STATE        Inventors: Douglas C. Taff Robert B. Holdridge ABSTRACT OF THE INVENTION          A highly effective modular passive solar energy heating unit is provided for heating an enclosed living or working space employing phase change heat storage material which is clearly optically  transparent to visible light rays when in its high-stored-energy liquid state, thereby advantageously enabling a view-er to see through it clearly and which is translucent milky white when in its low-stored-energy solid state for providing pleasant illumination to the enclosed space when first illuminated by sun-light in the initial part of the morning.  This phase change material is in a fluid-tight container having two opposite surface areas transparent to sunlight, this phase change material being polyethylene glycol having a heat of fusion of about 33 to 37 cal./gm. (4,170 to 4,670 Btu's per cubic ft.), a melting point of about 13 to 25°C (55°F to 77°F), a specific gravity of about 1.125 at 20°C, and desirable isotropic freezing and melting characteris-tics with only a very modest change in volume during phase change, and the unit additionally contains at least one layer of clearly optically transparent glazing facing the sunlight and preferably including a layer of insulation, which transmits short wavelength solar radiation while blocking longer wavelength heat rays for retaining thermal energy within the enclosed living or working space with which the units is associated.  In preferred embodi-ments of the invention, there are two layers of transparent glazing in closely spaced parallel relationship with respect to the fluid-tight container in which the phase change material is held, these two layers being positioned between the incident solar radiation and the transparent container.
Patent CA-1194859-A (CA)
Inventor: MELZER ARNFRIED
IPC: G03C8/10
Filed: 1982-01-13
Granted: 1985-10-08
Abstract: ABSTRACT OF THE DISCLOSURE Reducible dye releasers of formula I (q = 0) arc used for the produc-tion of cyan image dyes in the dye diffusion transfer process.  The dye re-leasers are used together with electron donor compounds in association to ~ silver halide emulsion layer.  On development they release in image distribu-tion diffusible cyan phthalocyanine dyes of formula I (q = 1) which exhibit im-proved stability to light.                               (I)   wherein MPc represents a tetravalent phthalocyanine radical corresponding to the formula   R1, R2, R3 represent hydrogen, halogen, alkyl, alkoxy, aryl or acylamino, or R2 and R3 complete a condensed ring, R4     represents hydrogen or alkyl, R5     represents hydrogen, halogen or alkyl, alkoxy or acylamino each with up to 4 carbon atoms, R6, R7 represent hydrogen or alkyl, alkenyl, aryl or R6 and R7 together represent the radical needed to complete a saturated 5- or 6-membered ring, wherein R6 and R7 together contain not more than 7 carbon atoms, Ka?    represents a cation p      = 0, 1 or 2, q      = 0 (for dye releaser);       = 1 (for released dyes), wherein at least one of the radicals R1, R2, R3 and R4 contains a ballasting radical.
Patent CA-1183404-A (CA)
Inventor: BRENNER KENNETH I
IPC: F01B3/02
Filed: 1982-02-02
Granted: 1985-03-05
Abstract: ABSTRACT         This invention relates to a slipper and swashplate cavitation erosion control and impact reduction assembly for a piston type hydraulic apparatus that includes a rotating cylinder block having at least one axially disposed bore. A piston is mounted for reciprocal movement within the bore.  A fixed port plate is provided as well as a pair of different fluid pressure sources.          The port plate cooperates with the rotating cylinder block to deliver alternately during two discrete and different portions of the cylinder block rotation first one of the fluid pressure sources and then the other of the fluid pressure sources to the bore and the piston.         The piston has at one end thereof a slipper coupled thereto and the slipper is mounted for a sliding interface movement on a surface of a swashplate.  The swashplate is nonrotatable in respect of the port plate.          The piston has an internal passage extending from one end of the piston to the other end of the piston to thereby allow fluid under alternate pressure to be delivered to and through an opening in the slipper to the interface between the slipper and said swashplate. The inventive improvement resides in the swashplate being provided with at least one vent passage. The vent passage has one end thereof opening at the swashplate surface and the slipper-swashplate interface and the other end of said vent passage opening to an environment in which the ambient pressure is lower than either of the fluid pressure sources to thereby reduced erosion and load impact effects at the slipper-swashplate interface.