baber/WOPTO huggingface dataset:
Patent CA-1052842-A (CA)
Inventor: DESIO FRANK B
IPC: H01H13/70
Filed: 1976-08-26
Granted: 1979-04-17
Abstract: LIGHTED MOMENTARY CONTACT SWITCHES IN DUAL-IN-LINE PACKAGE         Abstract of the Disclosure A dual-in-line switch package having a plurality of momentary contact switching stations and a plurality of indicating lights is disclosed. The switching mechanism of the switches is provided by a close wound coil spring having one end that encloses one contact and another end that is: bent by the depression of a pushbutton so that it makes contact with a second contact in order to complete the circuit. The indicating lights may be light-emitting diodes which have lead extensions that are brought out of the package in line with the contacts for the switches. The light-emitting di-odes rest on a support guide rail and are held in place in the switch when the cover is snapped on.
Patent CA-1077883-A (CA)
Inventor: FONG JAAN-JIUE
IPC: C25D3/26
Filed: 1976-08-27
Granted: 1980-05-20
Abstract: CADMIUM ELECTROPLATING BATH    Abstract An aqueous acidic cadmium electroplating bath contain-ing cadmium ion, sulfuric and/or fluoboric free acid and a sur-factant comprises of a combination of a condensed naphthalene sulfonate and a non-ionic polyoxyalkylated compound.  Preferably, the bath also contains one or more brighteners.
Patent CA-1070778-A (CA)
Inventor: GUIDOUX LOIC B Y
IPC: H03H17/06
Filed: 1976-12-20
Granted: 1980-01-29
Abstract: ABSTRACT           Digital transversal filter for realizing a low-pass filter with a cut-off frequency fg and an impulse res-ponse h1(i), a lowpass filter derived therefrom having a cut-off frequency 2fg which has a transfer characteristic which is in phase with the first-mentioned lowpass filter, as well as a lowpass filter with a quadrature transfer characteristic of the in-phase filter. Herewith the sampling frequency fs is an integral multiple of 2fg.  This discrete filter is pro-vided with multipliers for multiplying input samples x(n) by an associated coefficient a(i) for generating modified input samples z(n,i) = a(i)x(n-i).  The coefficients a(i) are the same for all three transfer characteristics and are given by: a(i) = h1(i). Groups of modified input samples z(n,i) are thereafter added together for generating sum values P(n,r) which are given by:                              To realize the lowpass filter with cut-off frequency fg these sum values are added together for generating an output sample   To realize the in-phase filter these sum values are multiplied by a factor cos(2?rfg/fs) for generating an output sample   To realize the quadrature filter the sum values are multiplied by a factor sin(2 ? rfg/fs) for generating an output sample
Patent CA-1102391-A (CA)
Inventor: SCHWARTZ LEON J
IPC: G06Q50/00
Filed: 1977-01-12
Granted: 1981-06-02
Abstract: ABSTRACT OF THE DISCLOSURE         A micro computerized, miniature postage meter comprises an ink jet printing device adapted to project ink droplets onto a document.  A micro computer, which performs the control and data processing functions of the meter, include a logic circuit programmed to actuate the ink jet printing device to project ink droplets on the document in a postage indicia forming pattern.          In the preferred form of the postage meter, the ink jet printing device is mounted to be moved in close operative proximity relative to the document and the logic circuit is programmed to sequentially actuate the printing device during this relative movement. The rate of movement of the printing device relative to the document is observed by an optical monitor, mounted with the printing device. The micro computer also includes a clock circuit, connected to the optical monitor that computes the instantaneous rate of relative movement of the printing device and document and then generated a feedback signal to the logic circuit to coordinate the instantaneous rate of actuation of the printing device to the computer instantaneous rate of relative printing device-document movement.  A postage memory registor stores a purchased amount of postage and is addressable by the logic circuit to reduce the stored amount of postage by the amount printed during each meter use.  A disabling look-out circuit disables the meter when postage stored in the memory register is depleted to a predetermined minimum amount.
Patent CA-1149086-A (CA)
Inventor: COLLIER ROBERT J
IPC: H01J37/305
Filed: 1977-01-27
Granted: 1983-06-28
Abstract: Collier-Thomson 14-1 VARIABLE-SPOT RASTER SCANNING IN AN ELECTRON BEAM EXPOSURE SYSTEM     Abstract of the Disclosure For a given resolution or address dimension, the pattern-writing speed of an electron beam exposure system is increased by utilizing a new mode of raster scanning.  In the new mode, the writing spot dimensions of the electron beam are varied rapidly during the scan. In an electron column designed for variable-spot raster scanning, an illuminated aperture is demagnified to form the writing spot.  By imaging a first aperture upon a second aperture and rapidly deflecting the image of the first aperture, the portion of the second aperture that is illuminated by the electron beam is altered.  In that way, the spot size is selectively varied in a high-speed way during the raster scanning process.
Patent CA-1046092-A (CA)
Inventor: PROEHL NORMAN P
IPC: E02F9/28
Filed: 1977-02-02
Granted: 1979-01-09
Abstract: ABSTRACT OF THE DISCLOSURE         A cutter head for a suction dredge which is constructed of simplified wearing parts and strength members which may be easily assembled and replaced.  The cutter includes a circular front plate mounted on a hub.  Portions of the circular front plate are cut away to form a plurality of spokes extending radially outwardly of the hub.  Struts extend between the circular plate and a back ring having a greater radius than the spokes to form a truncated conical cutter head.  Blades are connected to the struts and are inclined in the direction of rotation of cutter head.  A plurality of inclined lifter plates are attached to the circular front plate on the rear side thereof.  Each lifter plate is aligned with and extends rearwardly from a cut-away portion of the circular front plate.  Scoops are mounted on the front side of the circular front plate and each scoop forms a forward extension of an inclined lifter plate.          Cutting tooth assemblies are attached to and are positioned along the struts.  The teeth extend radially to the longitudinal axis of the cutter head and project outwardly beyond the blades.          Each cutter tooth is positioned in a socket mounted on a strut.          Each tooth is held in its socket by a removable fastener extending through aligned openings in the socket and in the tooth.  A tooth backup member engages the trailing edge of each tooth to absorb forces exerted against the tooth during digging operations.
Patent CA-1041461-A (CA)
Inventor: HERPICH WILLIAM A
IPC: B65F3/20
Filed: 1977-02-24
Granted: 1978-10-31
Abstract: T I T L E TAILGATE FOR A REAR LOADING REFUSE VEHICLE              ABSTRACT OF THE DISCLOSURE       A tailgate for a rear loading refuse vehicle.  The tailgate has vertical side walls and a hopper-like bottom.   There is an upwardly and forwardly inclined guide track in each of the side walls.  A slide block is reciprocated in each guide track by one of a pair of packing cylinders which extend along and are spaced laterally from the guide tracks with the bases of the cylinders at the upper ends of the tracks and the ends of their rods connected to the slide blocks.  A generally rectangular packer blade is pivotally supported along its upper edge by the guide blocks.  A pair of sweep cylinders are pivotally connected at the upper rear corner of the tailgate and their rods are pivotally connected to the packer blade at a point intermediate its upper and lower edges.  The geometry of the apparatus is such as to apply the force acting laterally on the guide tracks primarily in the down direction so that the tailgate structure is supported against this force by the vehicle body enabling the tailgate sidewalls to be less massive.  Preferably the guide tracks open toward the inside of the tailgate and the packing cylinders are located inside the tailgate.  A non-load carrying fall back shield also is carried by the slide blocks to prevent refuse already in the vehicle body from falling backwardly over the packer blade.
Patent CA-1077860-A (CA)
Inventor: BROWN JUDSON G
IPC: B01D33/04
Filed: 1977-03-11
Granted: 1980-05-20
Abstract: ABSTRACT OF THE DISCLOSURE            A filter belt is formed into a tube which follows a substantially U-shaped path.  Feed is introduced into the tube and by hydrostatic pressure is filtered.  The tube is opened and the cake removed and the tube reformed.
Patent CA-1061814-A (CA)
Title: Leaf spring weighing scale
Inventor: STORACE ANTHONY
IPC: G01G3/08
Filed: 1977-04-07
Granted: 1979-09-04
Abstract: LEAF SPRING WEIGHING SCALE                  Abstract of the Disclosure A leaf spring weighing scale is described which uses load cells to measure the deflection of the tare.  The load cells are arranged in tandem.  One of the load cells is a low range deflection reading cell, and the other load cell is a high range measuring cell.  Each of the load cells is bottomed before it reaches its deflection limit to prevent damage to the cell.  A point contact connection between the tare and the load cells eliminates errors caused by lateral forces, and errors due to the non-linearities in the tare deflection.  The leaf springs of the scale are constructed as thin strips to eliminate the effects of "oil canning", and to reduce structural and assembly inaccuracies.
Patent CA-1061669-A (CA)
Inventor: LI YAO T
IPC: F41B5/00
Filed: 1977-04-13
Granted: 1979-09-04
Abstract: ARCHERY BOW Abstract of the Disclosure An archery bow having a pair of elastic limbs at least one of the limbs storing potential energy in the deforma-tion of its cross sectional shape as the bow is drawn as well as in its bending mode in the plane of the bow.
Patent CA-1068358-A (CA)
Inventor: GEWARTOWSKI JAMES W
IPC: H03F3/10
Filed: 1977-05-04
Granted: 1979-12-18
Abstract: PARAMETRICALLY-STABLE NEGATIVE    RESISTANCE DIODE CIRCUIT     Abstract of the Disclosure A parametrically-stable microwave circuit comprises in cascade a negative resistance diode, a stabilizing network, and a complementary type filter. The complementary type filter presents a substantially constant impedance to the stabilizing network from low frequencies to the operating frequency by selectively coupling the diode microwave signals to a dummy load or to a circuit load. With its termination thus con-trolled, the stabilizing network may be designed to suppress spurious parametric oscillations by presenting to the negative resistance diode a predetermined impedance over a broad range of frequencies.
Patent CA-1036928-A (CA)
Inventor: ROUTSON WILLIS G
IPC: E21B43/25
Filed: 1977-05-06
Granted: 1978-08-22
Abstract: ABSTRACT OF THE DISCLOSURE         Bituminous hydrocarbons are recovered from uncon-solidated tar sands by in-place, selective leaching with a hot condensate formed upon contact with hot solvent vapors injected in the formation.  The composition and temperature of the vapors are regulated so that a less soluble fraction of the tar is left behind as a residue.  This residue does not dissolve in the vapors passing through the already leached portion of the formation and continues to act as a sand-supporting and immobilizing agent.  Thus, subsidence of the leached formation and release of sand grains (which tend to interfere with removal of the leachate from the formation) are avoided.  Solvent for the process is obtainable by dis-tillation or cracking of the produced bitumens.
Patent CA-1059105-A (CA)
Inventor: FRIESS JEAN
IPC: F16K1/00
Filed: 1977-05-27
Granted: 1979-07-24
Abstract: TITLE:                      "ANNULAR VALVE SEATING"                             ABSTRACT   the invention provides an annular seating, for valves and cocks comprising a body formed with an axial duct and a movable closure member having a bearing surface associated with the seating.  The seating has a metal casing having a hollow cross-section having an anchor part adapted to be held in a recess of the body  and an annular closure part having an annular contact surface adapted to co-operate resiliently with the annular bearing surface of the closure member when the seat is in the operating position.
Patent CA-1079173-A (CA)
Inventor: TAKAHASHI MITSUHIRO
IPC: B32B5/22
Filed: 1977-06-16
Granted: 1980-06-10
Abstract: STRAPPING BAND                 Abstract of the Disclosure In a strapping band comprising a tape-shaped core having continuous reinforcing fibers combined together with a thermosetting resin and an outer layer of thermoplastic resin covering the tape-shaped core, the thermoplastic and thermosetting resins each has polymeric units derived from the same monomer.
Patent CA-1077124-A (CA)
Inventor: YOSHINO TSUNEMI
IPC: H05B41/34
Filed: 1977-06-29
Granted: 1980-05-06
Abstract: ABSTRACT           A stroboscope for a camera wherein the energy stored on a main capacitor is converted by a flash lamp into a flash of light.  It is provided with a flash delay means for maintain-ing constant a time delay elapsing from the time the strobo-scope receives a flash command signal from the camera to the time the flash lamp flashes irrespective of the magnitude of the voltage charged across the main capacitor, whereby a strobo-scopic circuitry may be considerably simplified.
Patent CA-1094330-A (CA)
Inventor: HETKE ADOLF
IPC: C21C7/04
Filed: 1977-06-30
Granted: 1981-01-27
Abstract: ABSTRACT OF THE DISCLOSURE         A method of treating molten metals is disclosed which employs a solid sheathless flexible strand containing particles of the treating agent uniformly suspended in a binder matrix, the latter being consumable or vaporizable upon contact with molten metal.  Positive and predetermined solution conditions of the treating agent are assured by regulating the molten metal flow velocity to be at or above a predetermined minimum and the strand injection rate to be within defined limits.
Patent CA-1094262-A (CA)
Title: Brightening compositions
Inventor: GUENTER FRANZ
IPC: C11D3/42
Filed: 1977-07-07
Granted: 1981-01-27
Abstract: Case 1-10594/++ Canada Brightening compositions A brightening composition consisting of a mixture of brighteners and 0 to 99.995 % by weight of a commercially available washing agent, said mixture containing at least two brighteners of the formula in which A and B independently of one another denote a radical of the formula or                          in which M represents hydrogen or an ammonium,alkaline earth metal, amine salt or alkali metal ion, as well as a process for brightening organic textiles are disclosed.
Patent CA-1092089-A (CA)
Inventor: RYER JACK
IPC: C10M159/12
Filed: 1977-09-13
Granted: 1980-12-23
Abstract: ABSTRACT OF THE DISCLOSURE      Oxazoline reaction products of C8-C49 hydrocarbon-substituted unsaturated C4-C10 dicarboxylic acids, esters, or anhydrides, for example octadecenylsuccinic anhydride, with 2,2-disubstituted-2-amino-1-alkanols, such as tria-hyfroxymethylaminomethane (THAM), and their derivatives are useful additives in olesginous compositions, such as sludge dispersants for lubricating oil or ani-rust agents for gasoline.
Patent CA-1103140-A (CA)
Inventor: STANLEY HUGH E
IPC: B32B27/32
Filed: 1977-09-22
Granted: 1981-06-16
Abstract: TRILAMINATE FILM FOR                  FORMING SIDEWELD BAGS                 ABSTRACT OF THE DISCLOSURE          Sideweld bags having strong sidewelds can be made from a trilaminate film comprising a core layer of an ethylene-propylene block copolymer sandwiched between skin layers of polypropylene or an ethylene-propylene random copolymer.
Patent CA-1101941-A (CA)
Inventor: THOMSON ELIHU C
IPC: H01L31/02
Filed: 1977-11-02
Granted: 1981-05-26
Abstract: Abstract of the Disclosure A two-terminal photodetector comprising a photodiode and a plurality of active and passive components connected so that when connected to a source of current the voltage across the terminals is proportional to the illumination and is proportional by an amplification factor to rapidly changing illumination levels.  In one embodiment the photodetector includes a first transistor having the photodiode connected in the emitter base circuit and a feedback resistor connected in the base collector circuit.  This transistor is biased such that it is nearly saturated.  Illumination on the photodiode causes the collector voltage to rise correspondingly.  An output transistor is connected with its base joined to the emitter of the first transistor and a voltage divider connected between its emitter and collector.  The output transistor has only a unity gain for low frequency signals but the gain is considerably increased for high frequency signals corresponding to rapidly changing illumination.
Patent CA-1089107-A (CA)
Inventor: CAPOWSKI ROBERT S
IPC: G06F15/02
Filed: 1977-12-02
Granted: 1980-11-04
Abstract: CHANNEL BUS CONTROLLER            ABSTRACT OF THE DISCLOSURE    The Channel Bus Controller (CBC) transfers information between groups of input/output channels and processor storage. Storage receives or dispenses two data words per access operation.  Interfaces for transfers from the channel groups to the CBC are advantageously one word wide; since each output (fetch) request consists of a single request word. Information sent by each group is assembled into three-word units (a request word and zero, one or two data words) in a respective channel bus assembly register (CBAR).  The assem-bled unit is passed from the CBAR to a respective area of an In Buffer array and from that array to storage.  Zero filler words are inserted into unused data word positions.  A channel request may be tagged to designate a transfer of four data words.  If the transfer is an input the four data words are sent to the CBC with a single request word.  The third and fourth data words are written in the CBAR over the first and second data words as (or after) the unit formed by the request and first and second data words is advanced to the In Buffer. The same request and the third and fourth data words are trans-ferred as a second unit from the CBAR to the In Buffer. The low order bit in the address part of the request is inverted by the CBC to designate the "next" storage address. This saves time by eliminating a request unit transfer from the source channel group.  Request transfers from a group are permitted when a vacancy exists either in the respective CBAR or in a respective area of the In Buffer.  Outputs from storage (acknowledgments of data inputs and fetched/output data) are returned to the respective channel group via a respective area of an out suffer array.  Returns to a group are ordered in the input sequence of respective requests to the CBC although the requests may be applied to storage in another sequence.  Tags generated by the CBC are used to maintain the correct output order without delaying evacuation of the In Buffer.  The area partitioning of the in and out buffer arrays provides balanced group access to storage and simplifies handling of group traffic.  Channel identity information in the request words is looped through the buffer arrays and returned to the channel groups with respective outputs.  This permits the CBC (and storage) to ignore channel origins of group traffic and thereby further simplifies handling of traffic.
Patent CA-1116937-A (CA)
Title: Disk printer inking mechanism
Inventor: DREJZA JOHN E
IPC: B41J27/10
Filed: 1977-12-09
Granted: 1982-01-26
Abstract: DISK PRINTER INKING MECHANISM              ABSTRACT OF THE DISCLOSURE       A serial disk printer which includes an ink roll is disclosed.  During printing, the print disk is continuously rotated at a constant speed as it moves across the print line.          The motion of the carrier across the print line does not begin until rotation of the print disk has been brought up to speed.          In order to avoid unnecessary delay, the rotation of the print disk is not immediatley stopped at the end of each line of printing.  Instead  after each line of printing the carrier is returned to a home position and the disk is rotated for several seconds so that in the event printing of another line is required shortly after the completion of a line of printing the disk is still rotating and there will not be any delay before printing can begin.  Ink is applied to the print disk by an ink roll which is in contact with the print disk. mechanism is provided to lift the ink roll from the print disk while the disk is idling in home position.  Thus, there is no wear on the ink roll while it is in home position.  In a second embodiment of the invention, an added element keeps the ink roll rotating when the carrier is in home position so that there is minimal relative motion between the ink roll and the print disk when they are brought into contact.
Patent CA-1092799-A (CA)
Inventor: TEENY SAMUEL J
IPC: A21C9/04
Filed: 1977-12-13
Granted: 1981-01-06
Abstract: ARTICLE MOISTENER                 Abstract of the Disclosure Apparatus for applying liquid to one side of a substan-tially flat article includes a power-driven, rotatably journaled drum having a perforate, cylindrical surface.  Within the inter-ior of the drum is disposed a roller.  The roller includes a resilient, absorbent surface which engages the inside surface of the drum such that rotation of the drum imparts relative rotation to the roller.  The roller is rotatable through a liquid reser-voir and a pressure member is selectively operable to press or urge the perforate surface against the roller such that liquid picked up by the roller is squeezed through the perforations.  An article contacting the drum surface will thereby have liquid applied to one side thereof.
Patent CA-1067103-A (CA)
Inventor: MAHENDROO RAJINDER K
IPC: C07C7/163
Filed: 1977-12-21
Granted: 1979-11-27
Abstract: SELECTIVE HYDROGENATION PROCESS                      ABSTRACT OF THE DISCLOSURE       In a process for the selective hydrogenation of unsaturated hydrocarbon components of a feedstock, the feedstock is initially passed over a hydrogenation catalyst in the absence of hydrogen to increase hydrogenation selectivity of the catalyst, after which the amount of hydrogen required is then passed over the catalyst along with the feedstock to carry out the desired hydrogenation reaction.
Patent CA-1082434-A (CA)
Inventor: FRAUENHOFFER JOSEF
IPC: B23P21/00
Filed: 1978-02-21
Granted: 1980-07-29
Abstract: METHOD AND APPARATUS FOR ASSEMBLING BEARING ROLLERS                  Abstract of the Disclosure Bearing rollers are assembled in a circumferential path with a bearing bushing by successively feeding bearing rollers to an annular channel formed between a piston and an outer sleeve member.  The bearing rollers are accumulated in the annular channel until a predetermined number of bearing rollers occupy the channel.  An axial force is then simulta-neously applied to each of the bearing rollers accommodated within the annular channel to insert the accumulated bearing rollers into a prepositioned bearing bushing.  The plurality of bearing rollers are fed to and supported in the annular channel in the direction of insertion into the bearing bushing.
Patent CA-1083629-A (CA)
Inventor: HENNING JAMES
IPC: B60D3/00
Filed: 1978-03-23
Granted: 1980-08-12
Abstract: Abstract of the Disclosure A front mounted ground supported tractor attachment, steerable with and pushed by the tractor, includes a portable frame supported on caster wheels and a drive linkage connected between the frame and tractor for pivotal movement of the frame about both a transverse axis and a longitudinal axis relative to the tractor.  The drive linkage transmits the forward motion of the tractor to the frame and the caster wheels allow the frame to turn with the tractor as it is steered in the usual manner.  A pair of elongated push members on the drive linkage help push the frame while permitting it to pivot or swivel about the longitudinal axis, Abutment means limits the downward and forward pivotal movement of the frame relative to the tractor for safety.