baber/WOPTO huggingface dataset:
Patent CA-1079368-A (CA)
Inventor: BEEMAN ROBERT H
IPC: H04Q1/457
Filed: 1977-08-08
Granted: 1980-06-10
Abstract: TITLE                 TONE DETECTION SYNCHRONIZER                 ABSTRACT OF THE INVENTION           A synchronizer circuit for use with tone receivers employed in the reception of asynchronous tones.  A plurality of latch stages controlled by an external clock pulse source and internal timing circuitry provides synchronized outputs of a series of signal which represent the input tone on-off sequences.
Patent CA-1130422-A (CA)
Title: Tension control of fasteners
Inventor: ESHGHY SIAVASH
IPC: B25B23/14
Filed: 1977-08-08
Granted: 1982-08-24
Abstract: TENSION CONTROL OF FASTENERS                    Abstract of the Disclosure There is disclosed a technique for tightening threaded fasteners in which values of offset torque, initial tension rate relative to angle advance, final tension rate relative to angle advance and other joint related factors are empirically determined by instrumenting a plurality of fasteners of the type ultimately to be tightened.  In one embodiment, torque and angle of advance are monitored during the tightening of production fasteners.  Calculations are conducted, while tightening, of the ratio of the torque and the torque rate of the fastener being tightened to determine the tension prevailing in the bolt at a particular angle of advance.  By using the calculated tension value and the particular angle of advance, an instantaneous position of threading advance on the tension-angle curve of the fasteners is established.  From this instantaneous position, it is determined how much greater angle of advance or how much torque is required to tighten the fasteners to a final desired tension value.  The same technique is also used merely to monitor tightening which is terminated by a different tightening strategy.          In another embodiment, analog devices are utilized to convert sensed values of torque and the rate of threading advance into parameters which control tool shut off.
Patent CA-1075312-A (CA)
Inventor: FLAHERTY JOHN J
IPC: G01R27/02
Filed: 1977-08-12
Granted: 1980-04-08
Abstract: TITLE:  CONDUCTIVITY MEASURING INSTRUMENT         HAVING LINEARIZATION MEANS AND A DIGITAL READ-OUT                 Abstract of the Disclosure Conductivity measuring instruments are provided in which a test coil is supplied with alternating current and a detector responds to the voltage across the test coil to develop an analog voltage which is applied to a linearization circuit to develop an output voltage as a linear function of conductivity, the output voltage being applied to a digital read-out unit   As a function of conductivity, the analog voltage is single-valued, preferably with no more than a gradual slope change over a wide range of conductivity values.  In one embodi-ment, a high impedance is provided in series with the test coil, the detector is a phase detector operated to respond primarily to the inductive component and linearization circuit is of a diode-function type.  Alternatives are in the use of a phase-to-voltage type of detector and in the use of a digital type of detector and in the use of a digital type of linear-ization circuit.
Patent CA-1039848-A (CA)
Inventor: MASSE PHILIP R
IPC: G11B17/00
Filed: 1977-08-29
Granted: 1978-10-03
Abstract: LOADING AND UNLOADING MECHANISM        FOR FLEXIBLE MAGNETIC DISKS        Abstract of the Disclosure Mechanism for loading and unloading flexible disks contained in protective envelopes into and from a data recording and reading device for the disks which holds the disks vertically between a drive element and an arbor rotatable on horizontal axes.  The mechanism comprises a bin located on top of the recording and reading unit and having a hopper section and a stacker section.  Rotatable pick and feed rolls feed a disk in its protective envelope out of the hopper section and downwardly into the recording and reading unit; and, after information has been either read from or recorded on the disk, vertically movable lifter fingers move the disk and protective envelope upwardly to the feed roll which transfers the disk in its envelope into the stacker section of the bin.
Patent CA-1109449-A (CA)
Inventor: LOCKWOOD ROBERT J
IPC: C08G18/18
Filed: 1977-09-07
Granted: 1981-09-22
Abstract: ABSTRACT OF THE DISCLOSURE    A novel cocatalyst combination for the trimerization of polyisocyanates to polyisocyanurates is disclosed.  The catalyst combination comprises:  (a) alkali metal glycine salts, (b) hydroxyalkyltrialkylammonium carboxylate salts, and (c) alkali metal salts selected from the group consisting of (i) alkali metal salts of N-phenyl aliphatic amides, and (ii) alkali metal salts of aliphatic carboxylic acids.  The use of the cocatalyst combination provides for the facile formation of polyisocyanurate foam laminate boardstock which is characterized by good fire resistance and good physical properties.
Patent CA-1081672-A (CA)
Inventor: WETERINGS PETRUS J J
IPC: H01K1/56
Filed: 1977-09-13
Granted: 1980-07-15
Abstract: ABSTRACT:       Halides of Mn, Ba, Ca, Sr, Ce and La are used as a binder for getters in electric lamps. They have the advantage over organic binders of giving no oxygen-containing decomposition products when the lamps are put in operation.
Patent CA-1093728-A (CA)
Inventor: STUTZMAN GARY L
IPC: C08K9/06
Filed: 1977-10-26
Granted: 1981-01-13
Abstract: ABSTRACT OF THE DISCLOSURE          A vulcanizable composition suitable for thermoset injection molding consisting essentially of about 35 to about 75 parts by weight of (A) an ethylene-vinyl acetate copolymer containing about 7 to about 55 weight percent of vinyl acetate based on the total weight of said copolymer about 65 to about 25 parts by weight of (B) a clay filler selected from the class consisting of an organosilane treated clay and an organo-polyester treated clay;  he sum of (A) + (B) being about 100 parts by weight in the composition; about 1 to about 5 parts by weight based on the sum of (A) + (B) of (C) an organic peroxide crosslinking agent having a half-life at its stock temperature of greater than one hour; and 0 to about 5 parts by weight based on the sum of (A) + (B) of (D) of an organic crosslinking booster; wherein said components (A), (B), (C) and (D) are  such that a crosslinked product obtained upon crosslinking an admixture containing only said components (A), (B), (C) and (D) in the same proportions as (A), (B), (C) and (D) are present in said vulcanizable composition, has a hot tensile strength of at least 250 pounds per square inch when measured according to ASTM D412-64T at the same temperature employed to crosslink said admixture. The in-vention is believed to represent the first thermosetting, injection moldable composition based on ethylene-vinyl acetate copolymers. It differs from prior art compositions primarily in that a specific copolymer containing specific amounts of comonomers polymerized therein are required, and that clay treated with silane or organopolyester is required. Also, the peroxide must halve specific properties described above.
Patent CA-1086600-A (CA)
Inventor: HINDLE PETER
IPC: C11D17/00
Filed: 1977-11-09
Granted: 1980-09-30
Abstract: HARD-SURFACE CLEANING COMPOSITIONS AND             METHODS OF THEIR USE                      Peter Hindle William J. Welsh ABSTRACT OF THE DISCLOSURE        Hard-surface cleaning compositions especially suited for cleaning polished surfaces.  The compositions contain amine compounds as impurities and a sufficient amount of a metal ion to complex the amines thereby preventing them from attacking the polish composition.  Methods of using the compositions are also provided.
Patent CA-1092841-A (CA)
Inventor: SEDLEY BRUCE S
IPC: E05B47/00
Filed: 1977-11-17
Granted: 1981-01-06
Abstract: Abstract of the Disclosure A door lock structure adapted to be actusted by a  mag-netic card key to operate a conventional cylindrical door lock with  substantially no modification to such lock.  A housing containing the magnetically  operated elements of the lock is mounted, along with a modified knob, on the conventional spindle of the lockset in lieu of the usual door knob.  The housing is freely rotatable relative to the lockset spindle to prevent wrenching.  The latchbolt retractor of the lockset is actuated in the normal manner to unlock the lockset by rotating a con-ventional driver bar.  The driver bar in this structure is rotated by registering lnterengaging elements carried by the driver bar and a slide which is actuated by a properly coded magnetic card key. The modified knob may be freely rotatable on the spindle or may be fixed thereto,
Patent CA-1086279-A (CA)
Inventor: DOERING HERMANN
IPC: B60M5/00
Filed: 1977-11-28
Granted: 1980-09-23
Abstract: ABSTRACT OF THE DISCLOSURE   In a third rail system for electric railroads, double T shaped third rails are used, the web of which has an internal longitudinal slot to receive the guide projections of support insulators and for the space saving mounting of electrical and mechanical connecting parts of fixed and/or ex-pansion joints.  With this slot design, good heat transfer and at the same time, a large mechanical moment of inertia are obtained.
Patent CA-1083667-A (CA)
Inventor: BERGMANN GUENTHER
IPC: H03K17/30
Filed: 1977-11-30
Granted: 1980-08-12
Abstract: Abstract of Disclosure A two terminal solid state device for voltage limitation comprises a controllable current path and a control electrode for the control thereof. A series arrangement of one or more diodes is connected with one of the ends thereof to said control electrode and with the other end thereof to one of said two terminals of the device. The latter is adapted to operate above the combined threshold voltages of said controllable current path and that of said one or more diodes.
Patent CA-1094173-A (CA)
Inventor: DEHART DAVID A
IPC: G06F7/58
Filed: 1977-12-09
Granted: 1981-01-20
Abstract: DIGITALLY SHAPED NOISE GENERATING SYSTEM           ABSTRACT OF THE DISCLOSURE This invention relates to high-speed acoustic noise generating system that is under the control of a computer in order to produce spectrally shaped noise of any de-sired amplitude versus frequency shape. The foregoing is accomplished by randomly generating and serially storing binary noise in a first memory, by generating with a computer, filter coefficients and serially storing the filter coefficients in a second memory, and by individually adding and accumulating the filter coefficients generated by the computer when the serially corresponding noise coefficient has the same polar-ity as the logic that triggers the apparatus of this invention.
Patent CA-1087886-A (CA)
Inventor: HORGER OTTO A JR
IPC: A61C11/00
Filed: 1978-01-03
Granted: 1980-10-21
Abstract: THE METHOD OF MAKING CROWNS AND BRIDGES AND THE OCCLUSAL AND LINGUAL STAMP THERE OR     ABSTRACT OF THE DISCLOSURE In the method of making dental crowns and bridges, wherein from a bite simulating articulated master model of the patient's jaws, there has been sliced and separated a master die of the particular tooth and adjacent jaw requiring a crown or bridge, the steps of marking a constrasting finish line on and around the master die, and applying a layer of plastic sheet spacing material around said die down to the finish line. Further steps include applying a supportive plastic coping over the spacing material overlapping the finish line, and thereafter trimming said coping at the finish line and simultaneously forming a V-shaped channel around the die in registry with the finish line. Further steps include removing the spacing material and reapplying the master die and coping to the master model. Applying molten wax into the cavity of a preselected metal stamp having an occlusal or lingual anatomy; approximating the optimum shape of the particular tooth creating a preformed occlusal pattern the depth of the stamp. Inverting the occlusal pattern while plastic over said coping while applying axial pressure and heat, joining said pattern to said coping, and the final step with the master die removed from the master model, of applying molten wax to all lateral surfaces of the die from the margin to the occlusal pattern contouring same to the anatomical shape of a tooth.
Patent CA-1120643-A (CA)
Inventor: EMMONS WILLIAM D
IPC: C08L63/00
Filed: 1978-01-04
Granted: 1982-03-23
Abstract: ABSTRACT       Novel, versatile aminolysis products are obtained by aminolyzing, with a polyamine of aliphatic nature, an oligomeric homopolymer of an alkyl methacrylate in which the alkyl group contains from 1 to 6 carbon atoms or an oligomeric copolymer of at least two alkyl methacrylates, such oligomers being produced from monomeric alkyl methacrylates by anionic polymerization to provide number average molecular weights in the range of 600 to 10,000 and preferably in the range of 1,000 to 5,000.  Alternatively, an anionically polymerized homo-oligomer of a (C1-C6)- alkyl acrylate or co-oligomer of at least two alkyl acrylates in which the alkyl in at least one monomer has from 1 to 6 carbon atoms in the co-oligomer, and the alkyl in the comonomers may have from 1 to 18 or more carbon atoms, are aminolyzed with a polyamine of aliphatic nature.  Instead of oligomers obtained by anionic  polymeriza-tion of esters of acrylic acid or of esters of methacrylic acid, there may be used in the aminolysis, oligomers of cor-responding low molecular weight obtained by free radical poly-merization, and in this version there may also be included copolymers (not obtainable by anionic polymerization) of an ester of methacrylic acid with an ester of acrylic acid and also copolymers of one or more such esters with monomers not of ester type, such as styrene.  The aminolysis products have outstanding utility in the coatings field, particularly as the hardener for curing epoxy resins.
Patent CA-1100388-A (CA)
Inventor: ZAHID ABDUZ
IPC: F16L55/053
Filed: 1978-02-23
Granted: 1981-05-05
Abstract: Title:  LOCKING RING FOR PRESSURE VESSEL          Abstract of the Disclosure This invention relates to an improved locking ring for supporting the closure plug of a pressure vessel of the type used to store fluid under pressure, and particularly of the type having a deformable partition, such as a bladder.  The locking ring is comprised of two relatively foldable segments, the segments being held together by an annular elastomeric component, the device being characterized by the elastomer being molded in situ in an annular groove in the segments, which groove incorporates a non-reentrant mouth portion, whereby the elastomeric component is united to the segments without the necessity for bonding, etc.
Patent CA-1106560-A (CA)
Inventor: KRAAKMAN HILLEBRAND J J
IPC: B29D17/00
Filed: 1978-03-09
Granted: 1981-08-11
Abstract: ABSTRACT:                The invention relates to a method of manufac-turing a plastics record carrier, in particular a video disc, in which a mould is provided with a fluid moulding resin across which a substrate is provided. After curing the resin the assembly of substrate and cured layer of moulding resin bonded thereto is removed from the mould.  According to the invention the substrate is spherosymmetrically vaulted and as such pressed against the quantity of moulding resin present centrally on the mould. The moulding resin is rolled over the surface of the mould with a circular fluid front with simultaneous deformation of the vaulted substrate. After the moulding resin has been spread over the whole mould and the plane surface, the moulding resin is cured. Thevaulting of the substrateis preferably realized by flexibly suspending a plane substrate at the edge and then adjusting a different gas pressure on both sides of the substrate. The moulding resin is preferably a radiation-curable moulding resin which is cured by exposure to, for example, ultra-violet light via the substrate. The invention also relates to a device for carrying out the above method which comprises inter alia a holder for the substrate which has a cylindrical flexible collar the end face of which comprises means to connect the substrate to the collar in a detachable and air-tight manner.
Patent CA-1104523-A (CA)
Inventor: KUO CHUN L
IPC: B43K21/02
Filed: 1978-06-15
Granted: 1981-07-07
Abstract: ABSTRACT OF THE DISCLOSURE         This invention relates to a writing implement comprising an outer casing, a coil spring disposed within the casing, an inner tube inserted through the coil spring and having a plurality of presharpened leads stored therewithin, and a capping member inserted over the open end of the inner tube.  The front (writing) end of the inner tube is split into two clamping halves.  The front end of the coil spring is formed into a hooked portion which slides along the slot formed between the clamping halves to allow the expelling and feeding of presharpened lead pieces into the. clamping halves.
Patent CA-1102568-A (CA)
Inventor: JARRELL HAL K
IPC: E02B3/16
Filed: 1978-06-20
Granted: 1981-06-09
Abstract: HAL K. JARRELL                "METHOD OF LINING AN EARTHEN TANK"                   ABSTRACT OF THE DISCLOSURE A unitary liner for an earthen tank fabricated in insitu from a multiplicity of fiberglass panels bonded together to form a unitized membrane which is impervious to brine, crude and drilling mud.  The fiberglass panels are prefabricated and rolled into cylinders for delivery to the tank site where field fabrication of the membrane is completed by attaching overlap-ping edges of the panels to one another to form a seam.  The edges are subsequently bonded together by fiberglass cloth and polyester resin.  The fiberglass panels arc made up of a plural-ity of sheets of paper and fiberglass cloth bonded together by fiberglass resin.  The cylinder is of a configuration which en-ables it to be easily handled by workmen.                             - i -
Patent CA-1086405-A (CA)
Inventor: BLANCHARD HOUSTON F
IPC: G01P15/03
Filed: 1978-07-13
Granted: 1980-09-23
Abstract: ROLLING BAND VELOCITY SENSOR            Abstract of the Disclosure A velocity or acceleration responsive sensor includes a housing having a cavity including a pair of spaced side walls which taper relative to each other and define a predetermined included angle.  The side walls are joined by proximal and distal end walls.  A pair of bands of flexible spring material within the housing cavity are of generally figure 8 configuration.  The  bands are of generally elongate shape, with their adjacent abutting portions located coplanar with the bisector of the included angle and their remote portions bearing on the side walls of the cavity.  The abutting portions are commonly secured to each other and each remote portion is secured to a respec-tive side wall.  The force of the bands tending to return from their elongate shape to their free shape urges the bands toward the distal end wall of the cavity to provide a preload force.  When a predetermined velocity change or acceleration change occurs, the bands roll along the side walls oppositely of each other and further elongate relative to the proximal end wall.  Electrical contacts adjacent the proximal end walls are contacted by the bands to complete a circuit across a source of power and a device to be actuated.
Patent CA-1102354-A (CA)
Inventor: KRASKA ALLEN RICHARD
IPC: C07C217/32
Filed: 1978-08-16
Granted: 1981-06-02
Abstract: Abstract of the Disclosure Novel amine and amidine derivatives of di-O-(n-higher alkyl and alkenyl)-glycerols and -propanediols, and their pharmaceutically acceptable acid addition salts, are useful for combating viral infections in mammals.  Of particular interest is 1,3-di-O-(n-hexadecyl)-2-O-(3-aminopropyl)-glycerol, and its pharmaceutically acceptable acid addition salts.
Patent CA-1106335-A (CA)
Inventor: UEDA HIROSHI
IPC: B02C17/22
Filed: 1978-09-20
Granted: 1981-08-04
Abstract: LINER IN GRINDING MILL     ABSTRACT OF THE DISCLOSURE      The liner covering the inner wall surface of the drum of a grinding mill comprises a plurality of rec-tangular lining units each having an inner working surface inclined to approach the drum centerline from its upstream end to its downstream end, the lining units being in mutual dispositions such that lining units which are mutually adjacent in the drum rotational direction are mutually staggered in the drum longitudi-nal direction, and each lining unit is provided at its leading side part in the rotational direction with a concavely curved guide surface joining in a continuous-ly flush manner the inclined working surface of the adjacent lining unit in the rotational direction.
Patent CA-1105662-A (CA)
Inventor: ROTH ROBERT B
IPC: B24D13/06
Filed: 1978-11-14
Granted: 1981-07-28
Abstract: ROTARY STRIPPER            ABSTRACT OF THE DISCLOSURE         A rotary stripper comprising a pair of spaced plates driven around a shaft and studs extending between the plates and radially spaced from the shaft; stripper members, each comprising generally hairpin shaped members, with the bend mounted around a stud and the legs extending past the shaft and beyond the periphery of the plates; the legs of each stripper member are respectively supported against excessive deflection by the drive shaft and on the other studs; retainer studs are provided radially outside the mounting studs to block separation of the stripper members from their respective mounting studs; the stripper members are laid down on annularly successive studs until the required height of the stripper is reached, whereby the stripper members are interleaved.
Patent CA-1126811-A (CA)
Inventor: KOIZUMI AKIO
IPC: H02M3/335
Filed: 1978-12-14
Granted: 1982-06-29
Abstract: ABSTRACT OF THE DISCLOSURE      A switching regulator includes a switching transformer and a switching transistor connected in series between a DC voltage source through the primary winding of the switching transformer. A pulse width modulator and a control pulse signal generator are provided so as to produce a pair of ON-and OFF-pulse signals which are supplied to the control elec-trode of the switching transistor so as to increase the switch-ing speed thereof.
Patent CA-1121225-A (CA)
Inventor: MAXSON MYRON T
IPC: C09C1/30
Filed: 1979-01-03
Granted: 1982-04-06
Abstract: ABSTRACT OF THE DISCLOSURE          Reinforcing silica treated with short chain linear amidosiloxane of the formula   provides a useful reinforcing filler for silicone elastomers. Silicone elastomer bases manufactured using this treated silica can be cured by organic peroxides or the combination of organo-hydrogensiloxane and platinum catalyst.  When the later curing system is used, the cured products exhibit considerable retention of physical properties upon exposure to elevated temperatures for a significant period of time.