baber/WOPTO huggingface dataset:
Patent CA-1040265-A (CA)
Title: In-service technique for measuring transmission characteristics of a microwave radio link
Inventor: OADES JOHN W
IPC: G01R27/04
Filed: 1976-10-04
Granted: 1978-10-10
Abstract: AN IN-SERVICE TECHNIQUE FOR MEASURING TRANSMISSION          CHARACTERISTICS OF A MICROWAVE RADIO LINK by John Willson Oades ABSTRACT OF INVENTION     A composite test signal consisting of a search test signal and a sweep test signal from a link test set is combined with the through-path traffic signals during in-service testing.  The composite signals are simultaneously applied to a transmitter of a microwave radio communication link under test.  The sweep signal level is adjusted at the microwave radio communication link transmitter so that the total FM deviation is limited to the normal IF or RF transmission frequency band.  The composite test signals and traffic signals are received and split into a through path signal and a test path signal.  In the through path, the test signals are blocked, and the traffic signals are transmitted to the next microwave radio hop.  In the test path, the traffic signals are blocked, and the test signals are applied to the receive section of a link test set.  The link test set is then used to measure the transmission characteristics of the microwave radio communication link under test.
Patent CA-1068157-A (CA)
Inventor: POITRAS ANDRE
IPC: B41L49/02
Filed: 1976-11-16
Granted: 1979-12-18
Abstract: ABSTRACT OF THE DISCLOSURE:           This invention relates to numbering assembly incorpora-ted into a conventional press of the offset type, which may selectively be rendered inoperative if numbering is not desired or printing is stopped, and which is automatically deactuated during the operation of the offset press if no printed material is discharged to avoid movement or change of numbers on the regis-ter in the absence of printed material on which a number is to be printed. The numbering assembly according to the invention, advantageously comprises an improved control assembly including a first electrical circuit comprising detection means responsive to the presence and absence of gripped material, a first normally open switch and a relay connected in series. The control assembly also includes a second electrical circuit which comprises a main switch, the above-mentioned relay and a first solenoid connected in series, which solenoid operates first mechanical means which in turn closes a third electrical circuit comprising a switch operated by the first mechanical means, the main switch and a second solenoid. The second solenoid operates second mechanical means which brings the numbering machine in operative position so that the number to be impressed be stepped each time a sheet of printed material is passing through the numbering machine.
Patent CA-1056100-A (CA)
Inventor: ROSENBLATT SOLOMON
IPC: A61B19/00
Filed: 1976-11-29
Granted: 1979-06-05
Abstract: Abstract of the Disclosure A uniformly expandable hydrophilic sponge, adapted for medical usage, characterized by instantaneous wicking and a high liquid holding capacity comprising a reaction product of polyvinyl alcohol and formaldehyde.  The wicking and liquid holding capacity is attained by controlling the time, temperature and processing conditions while forming and curing the reaction product in an aqueous medium.  The sponge is rendered uniformly expandable by drying the wet sponge while maintaining the shape of the wet sponge.  The sponge can be made X-ray opaque by incorporating, homogeneously, throughout an encapsulated radiopaque substance with the formaldehyde and polyvinyl alcohol.  The sponge is biocompatible, non-toxic, lint free, compressible, resilient, strong, non-abrasive, free of foreign leachable materials and is of exceptionally high fluid holding capacity.
Patent CA-1072183-A (CA)
Inventor: PIGMAN CHESTER J
IPC: H01H9/26
Filed: 1977-01-07
Granted: 1980-02-19
Abstract: ABSTRACT OF THE DISCLOSURE An electrical control for providing a graduated change in the magnitude of electrical energy transferred from a source of electrical energy to a device driven thereby including a mount, a plurality of load contacts disposed in fixed relation on the mount, a movable power contact engaging certain of the plurality of load contacts, a movable transition contact asso-ciated with the movable power contact first engaging each of the load contacts engaged by the movable power contact to provide an alternate full load current path through each of the load contacts engaged by the movable power contact prior to engagement by the movable power contact, thus providing a transition between the load contacts engaged by the movable power contacts which are connected to differing magnitudes of impedance substantially without arcing; and a third movable contact may be provided for selectivity engaging other of the plurality of load contacts for effecting a switching function.
Patent CA-1072988-A (CA)
Inventor: WARD DENNIS J
IPC: C07C2/00
Filed: 1977-01-21
Granted: 1980-03-04
Abstract: ABSTRACT OF THE DISCLOSURE A process to reduce utility consumption in the catalytic alkyla-tion of benzene with propylene to form cumene.  Propylene and benzene are reacted in an alkylation reaction zone, the effluent of which is divided into two portions, the first being recirculated to the inlet of the re-action zone and the second being passed into a separation zone wherein cumene product, di-and triisopropylbenzene and excess benzene are separated.  A portion of the excess benzene is recycled to the inlet of the alkylation reaction zone, and a second portion is admixed with di- and triisopropylbenzene and passed into a transalkylation zone, the effluent of which is introduced into the separation zone.  Utility con-sumption is reduced compared to prior art processes, as a result of a reduction of the portion of excess benzene separated and recycled to the alkylation reaction zone.
Patent CA-1072993-A (CA)
Inventor: YAMANAKA TAKESHI
IPC: G11B15/295
Filed: 1977-02-01
Granted: 1980-03-04
Abstract: ABSTRACT OF THE DISCLOSURE   Tape apparatus in which a length of pliant material is fed between supply and take-up rolls in edge driven relationship with a capstan.  A static force provided, for example  by friction or a spring is utilized to maintain the take-up roll against the capstan with a greater force than the supply roll, and in the event of a reversal of tape direction.  This force is immediately and automatically applied to the new take-up roll and removed from the new supply roll.
Patent CA-1104199-A (CA)
Inventor: JASINSKI STEFAN A
IPC: G03G15/02
Filed: 1977-02-23
Granted: 1981-06-30
Abstract: ABSTRACT OF THE DISCLOSURE         A corona generating device having an elongated generally U-shaped shield and a corona wire mounted within and extending along the length of the shield has an improved cleaning apparatus for cleaning both the interior surface of the shield and the wire.  The cleaning apparatus includes a block slidably mounted within the shield so that the block can be moved back and forth along the shield, and a disposable cap which locks onto the block over the corona wire.  The cap has cleaning pads mounted thereon for cleaning the interior surface of the shield, and a protrusion and recess are used to lock the cap onto the block in an operative position in which the cleaning pads contact the interior surface to be cleaned.  Separate disposable pads for cleaning the corona wire are located between the block and cap, and when the cap is replaced, these wire cleaning pads are replaced also.
Patent CA-1088615-A (CA)
Inventor: AINSWORTH THOMAS S
IPC: H01J61/18
Filed: 1977-02-24
Granted: 1980-10-28
Abstract: ABSTRACT OF THE DISCLOSURE:         The invention relates to the production of metal halide discharge lamps.  Residual water vapour within the envelope of metal halide discharge lamps is gettered by the inclusion of a small quantity of phosphorous. By this means it is possible to dispense with complexities in the conventional manufacture of such discharge lamps arising from the hygroscopic nature of many metal halides.
Patent CA-1071309-A (CA)
Inventor: PATTERSON HUBERT A
IPC: H04B7/24
Filed: 1977-03-03
Granted: 1980-02-05
Abstract: ABSTRACT OF THE DISCLOSURE           A plurality of transmitters, such as radio transmitters, frequently share a common communication medium or path, such as a single radio frequency channel.  In order to prevent two transmitters from simultaneously transmitting over the common medium, each transmitter is provided with control apparatus.          This apparatus causes transmission in response to a start action and in the absence of any other transmission on the medium.  The apparatus also produces a repeating signal at predetermined intervals in response to the start action, so that if there is a transmission on the medium, the repeating signal continues until such time as there is an absence of any transmission on the medium.  The repeating signal then causes a transmission, and thereafter the repeating signal is stopped.  The interval between repeating signals may be the same for each transmitter, but simultaneous transmission by two transmitters will not or is very unlikely to occur because start times are likely to be different.
Patent CA-1055854-A (CA)
Inventor: JOHNSON REYNOLD B
IPC: G11B3/00
Filed: 1977-03-30
Granted: 1979-06-05
Abstract: ABSTRACT OF THE DISCLOSURE A hand held audio transducer device transduces signals from a stationary record and includes a housing containing a transducer.  The housing has an uncovered region in a portion of the housing or includes an opening serving to accomodate entry therein of a person's finger to pass into contact with Braille characters.  The transducer is carried by a rotatable body so that the transducer follows a path of the record, A member carried by the body is movable between projected and retracted positions for registering the transducer to follow the record path.  A power supply and drive motor are provided to rotate the body and transducer.  The transducing device can be used with a recording apparatus to teach pronunciation of words.  Pre-recorded words properly spoken are played back through a speaker and recorded via a microphone onto a recording medium.  The same words spoken by a student are recorded onto the medium after the words from the speaker of the transducer device.
Patent CA-1072162-A (CA)
Inventor: ERICSON ERIC A
IPC: H02B11/127
Filed: 1977-06-29
Granted: 1980-02-19
Abstract: ABSTRACT OF THE DISCLOSURE Drawout apparatus includes a carriage mounting a circuit breaker and supported on telescoping rails to facilitate racking movement of the circuit breaker between extreme positions of electrical engagement and disengagement with respect to switchboard primary terminals.  Racking movement into the engaged position from an intermediate test position is mechanically assisted by a racking screw.  While in the engaged position, a separate clamping screw of a joint clamping mechanism is operated to exert equal and oppositely directed forces on interleaved contact fingers of plural associated breaker-switchboard terminal connectors. An access control assembly interlocked with the clamping and racking mechanisms and the carriage position regulates access to the clamping and racking screws.
Patent CA-1073425-A (CA)
Inventor: HINZ HANS-DIETER
IPC: G03B1/54
Filed: 1977-08-24
Granted: 1980-03-11
Abstract: ABSTRACT:      A record carrier is stationary during recor-ding or reading and is subject to a tape tension which is higher than that during the subsequent transport.  These different tape tensions are obtained in that the tape-like record carrier is guided each time around a compen-sating roller of different weight in front of and behind the recording or read head, the braking device being ar-ranged between the light compensating roller and the re-cording or read head.  During operation of the braking de-vice, the heavy compensating roller freely acts on the record carrier and the light compensating roller pulls the record carrier off the supply roll by forced dis-placement.  When the braking device is not in operation, the heavy compensating roller is blocked and the light compensating roller freely acts on the record carrier and is hence returned to its starting position.
Patent CA-1102122-A (CA)
Inventor: LAWTON WILLIAM R
IPC: B41M5/323
Filed: 1978-02-24
Granted: 1981-06-02
Abstract: ABSTRACT OF THE DISCLOSURE     A heat-sensitive recording composition containing normally colorless lactones or spiropyran compounds in com-bination with hydrogen bonded molecular complexes of phenolic compounds having a dissociation temperature ranging from 50°C to 220°C.  The composition of the invention is less sensitive to pressure and less susceptible to background staining, image flooding, moisture sensitivity, odor, railroading and burnout problems as compared with compositions in which phenolic compounds are not complexed.
Patent CA-1083492-A (CA)
Inventor: KISAKA HIROYUKI
IPC: F16H3/02
Filed: 1978-04-10
Granted: 1980-08-12
Abstract: ABSTRACT OF THE DISCLOSURE          A tractor wherein the power of an engine is transmitted to a propulsion system and to a PTO system.  The tractor comprises a main shaft rotatable by engine power, speed change means of the hydraulic clutch type provided for the propulsion system to transmit the torque of the main shaft thereto, speed change means of the gear type provided for the PTO system to similarly trans-mit the torque of the main shaft thereto, secondary speed change means coupled to the hydraulic clutch type speed change means, and differential means coupled to the secondary speed change means.  At least one of the gears mounted on the main shaft is serviceable as a gear for transmitting the power to the hydraulic clutch type speed change means for the propulsion system and to the gear type speed change means for the PTO system.
Patent CA-1130248-A (CA)
Inventor: STEINLEIN RUDOLF F
IPC: B65D1/24
Filed: 1978-04-21
Granted: 1982-08-24
Abstract: ABSTRACT OF THE DISCLOSURE     The interior of the case is divided by compartmenting walls into a plurality of bottle-receiving compartments and also a central compartment which is not suited for receiving bottles and is elongated. The compartments are hexagonal. At each end of the central compartment there is a Y-intersection of three compartmenting walls. The compartmenting walls are extended upwards at these two intersections at each end of the central compartment and tapered together as they rise. Across the top of the central compartment and attached to the shanks formed by the extensions of the compartmenting wall intersections is a central handle for carrying the case. The handle shanks thus do not require space in the case in addition to the space already taken up by the compartmenting walls, and at the same time provide guide surfaces for the bottles being inserted into the compartments surrounding the end regions of the central compartment. This greatly facilitates machine loading of the case with bottles. The case also is provided with several other features which facilitate handling. A  spacing of the receiving compartments away from the side wall and an inner contouring of the side wall handels permits firmer holding by mechanical tongs and to reinforces against sideways pressure. Bottom support ribs are arranged for optimum load support. Special corner depressions at the top corners accomodate the bottom support rib arrangement of a similar case when stacked on top.
Patent CA-1114772-A (CA)
Title: Purification of glycoproteins and immunization  therewith
Inventor: KRUPEY JOHN
IPC: G01N33/76
Filed: 1978-06-02
Granted: 1981-12-22
Abstract: PURIFICATION OF GLYCOPROTEINS AND              IMMUNIZATION THEREWITH          Abstract A method is disclosed for the purification of the beta subunit of human chorionic gonadotrophin.  Also disclosed is an antiserum composition and method of producing same using spleen immunization to obtain antiserum compositions having high antibody titres.
Patent CA-1088910-A (CA)
Inventor: STILL ROBERT C
IPC: F16K3/02
Filed: 1978-06-16
Granted: 1980-11-04
Abstract: A REPLACEABLE ONE PIECE LINER FOR A GATE VALVE            Abstract of the Disclosure A replaceable one piece bore and chest liner is enclosed within a pair of mirror image castings to define a gate valve.  A cast gate, enveloped within molded material, cooperates with the liner to open and close the gate valve.
Patent CA-1118596-A (CA)
Title: Dispositif pour la manutention des differents  elements d'une installation d'injection d'air  prechauffe dans un four a cuve
Inventor: MAILLIET PIERRE
IPC: C21B7/16
Filed: 1978-07-28
Granted: 1982-02-23
Abstract: Dispositif pour la manutention des différents éléments d'une installation d'injection d'air préchauffé dans un four à cuve. Il est conçu pour être associé temporairement, au moyen d' un bras de levage à un chariot automoteur à usages multiples et il est pivotable autour d'un premier axe vertical alors que l'ensemble constitué par le bras de levage et le dispositif de manutention est pivotable autour d'un second axe vertical distinct du premier. Application au remplacement d'un porte-vent et d'une tuyère.
Patent CA-1106785-A (CA)
Inventor: HOCHSTEIN FRANCIS A
IPC: C12Q1/04
Filed: 1978-08-25
Granted: 1981-08-11
Abstract: P.C. 5918 HYPERTONIC CULTURE MEDIA Abstract of the Invention Improved hypertonic culture media, employing mannitol, erythritol or sorbitol in place of sucrose to provide high osmolarity, are described for the detection and growth of microorganisms in body fluids, particularly of bacteria in blood specimens.
Patent CA-1085231-A (CA)
Title: Buckle support system
Inventor: MARTIN LESLIE W
IPC: B60P7/14
Filed: 1978-09-11
Granted: 1980-09-09
Abstract: ABSTRACT OF THE DISCLOSURE     There is disclosed herein a buckle support system for use with a curtain-style lading-restraining device of the type which is suspended from an overhead support and includes a plurality of vertically-spaced and laterally-extending restraining belts, each of which includes a buckle for tightening the belt.  A cable system is provided which is secured at its uppermost end to the overhead support and which connects to each buckle.  Stop sleeves are secured or crimped to the cable at positions to engage and support each buckle so that the weight of the buckle is carried by the overhead support through the cable system.  This system, in addition to supporting the weight of the buckles, deters buckle theft or removal, since in order to obtain the buckle, the belts and the cable must be severed.
Patent CA-1114518-A (CA)
Inventor: STRECKER WILLIAM D
IPC: G06F9/355
Filed: 1978-10-25
Granted: 1981-12-15
Abstract: Application of William D. Strecker, Thomas N. Hastings, Richard F. Lary, David P. Rodgers and Steven H. Rothman Relating to CENTRAL PROCESSOR UNIT FOR EXECUTING INSTRUCTIONS WITH A SPECIAL OPERAND SPECIFIER     Abstract of the Disclosure.        A digital data processing system with a central processor for responding to diverse instructions characterized by having variable length.  Each instruction includes an operation code.  Certain instructions also include one or more operand specifiers.  Each operand specifier can comprise one or more data bytes,  Each instruction passes to an instruction buffer.  Control circuitry in the central processor decodes the operation code and, in succession, each operand specifier byte. The operand specifiers and information derived from the operation code concerning each operand specifier are combined to obtain the address from which the operand is to be retrieved or to which an operand is to be transferred.  Central processor response to an instruction for adding two addends located in first and second storage locations and storing the sum in a third location and instructions for calling a subroutine and returning from the subroutine to the calling routine are disclosed.
Patent CA-1120255-A (CA)
Inventor: WEST ROBERT F
IPC: G01B3/02
Filed: 1979-01-03
Granted: 1982-03-23
Abstract: ABSTRACT           A metric rafter square has a body and tongue with lengths of at least 300 mm and 400 mm respectively and scales along their outer edges in millimeters. A rise per meter table on the body includes a series of entries which cooperates with a rise per meter scale disposed along the tongue and pivot points disposed along the body. The rise per meter scale on the tongue is cooperatively compressed and has gradua-tions and a series of numerical values along its length for the graduations which are greater than the actual values represented by the unit length of the scale designated thereby. The required angles for end cuts are established between the preselected pivot points on the body and coopera-tive points on the rise per meter scale and the metric scale of the tongue. Methods are disclosed for the use of the metric square in the scribing of framing members with the appropriate lines to establish lengths and desired angles for end and side cuts.
Patent CA-1096553-A (CA)
Inventor: CROXTON JOHN M
IPC: A47C19/04
Filed: 1979-03-20
Granted: 1981-03-03
Abstract: ABSTRACT OF THE DISCLOSURE          A hospital bed is described having a twin canting plate mechanical jack for raising the top of the bed relative to the base or chassis, for holding the top in an elevated position, and for permitting descent, in which the jack comprises a horizontally arranged main shaft which extends through the canting plates, with opposite ends of the shaft being connected to respective bell cranks of a linkage system which carries the bed top.
Patent CA-1077998-A (CA)
Inventor: OFFERMANN PAUL F
IPC: H05B3/00
Filed: 1979-03-27
Granted: 1980-05-20
Abstract: METHOD AND MEANS FOR  SEGMENTALLY REDUCING              HEAT OUTPUT IN A HEAT-TRACING PIPE                 ABSTRACT OF THE DISCLOSURE           This invention relates to an improvement in 2 heat-generating pipe made up of a ferromagnetic pipe having an insulated conductor extending through it to a given point so that both the pipe and conductor may be connected in series with a power source of alternating current.  The invention is directed to both a method and means for reducing the heat output over a desired segment of the pipe by reducing the magnetic field created by the alternating current flowing in the insulated conductor and that segment of the pipe.  The means may be:  a second electrical conductor internal and parallel to the heat reduced segment; 2 segment of nonferromagnetic electrically conductive pipe; an electrically nonconductive pipe extending throughout the desired segment shunted by a second conductor; or a portion of the insulated conductor that is exterior to the ferromagnetic pipe along the segment so that it is magnetically decoupled from the pipe in which a reduced heat output is desired.  The method comprises the requisite steps of connecting an electromagnetic field-decreasing means in the series circuit to reduce the alternating magnetic field produced in the pipe by the alternating current flowing through the conductor inside the pipe.
Patent CA-1111077-A (CA)
Title: Sod harvesting machine having means for conveying and  stacking sod pads
Inventor: HUDSON WILLIAM W
IPC: B65G21/00
Filed: 1979-05-16
Granted: 1981-10-20
Abstract: ABSTRACT OF DISCLOSURE          A self-propelled sod harvesting machine includes a cutter head which separates a strip of sod from the ground, an elevator for raising the sod strip on the machine, and a blade assembly for cutting individual sod pads from the strip.  A conveyer for the sod pads includes a plurality of spaced apart chains drawn around sprockets and carrying outwardly projecting teeth which penetrate the pads from the top.  The teeth are arranged to pinch the sod in a manner to retain it on the con-veyer as the individual pads are successively carried to a sod box containing a pallet.  A stripping mechanism is lowered in a rocking type stroke to strip the sod pads off of the conveyer teeth and onto the pallet in a stack.