baber/WOPTO huggingface dataset:
Patent CA-1193006-A (CA)
Inventor: WAKABAYASHI MANABU
IPC: G11B23/033
Filed: 1982-10-20
Granted: 1985-09-03
Abstract: ABSTRACT OF THE DISCLOSURE         A disc cassette (11) for containing a disc (18) for rotation equipped with a shutter (14a, 14b) for opening and closing head windows (13) in slot form.  The shutter automatically opens when the disc cassette is mounted on a cassette drive apparatus and automatically closes when it is removed therefrom.  The shutter is mounted in center openings (15a, 15b) of the disc cassette for rotation therearound and has locked to one end portion thereof a movable belt (22) which causes the shutter to rotate when it moves.  The movable belt has fastened thereto a spring (29, 50) for moving the belt in sliding movement to close the shutter at all times when the disc cassette is removed from the cassette drive apparatus.
Patent CA-1197039-A (CA)
Title: Copolyester binder filaments and fibers
Inventor: SCOTT PAUL T
IPC: D01F6/84
Filed: 1982-11-02
Granted: 1985-11-19
Abstract: TITLE COPOLYESTER BINDER FILAMENTS AND FIBERS Novel improved copolyester binder filaments and fibers consist essentially of the terephthalate of ethylene and diethylene glycols with the mol percent of the latter being in the range of 20 to 45 percent.
Patent CA-1198060-A (CA)
Inventor: LONG EDWARD M
IPC: H03G5/16
Filed: 1982-12-31
Granted: 1985-12-17
Abstract: ABSTRACT         A method for processing the audio signal in a loudspeaker system prior to delivery to the loudspeaker (10) and the apparatus for such processing is disclosed. Uniform acoustic output with respect to frequency at freguencies below the resonant frequency of the loudspeaker system is achieved by changing the strength of the signal at a constant rate in inverse proportion to audio signal frequencies from a frequency below the resonant frequency to a frequency at least one octave above the resonant frequency.  A method and apparatus for limiting the audio signal to prevent distortion is also disclosed.
Patent CA-1180692-A (CA)
Inventor: RUSSELL LARRY R
IPC: E21B17/10
Filed: 1983-02-22
Granted: 1985-01-08
Abstract: Abstract of the Disclosure Drill string stabilizer apparatus, controllable to expand and retract entirely from the surface by control of drill string pressure, wherein increase of drill string pressure from the surface closes a valve to create a piston means which is moved down by drill string pressure to expand the stabilizer blades, said valve being opened and the piston moving upward upon reduction of drill string pressure to retract the sta-bilizer blades.  Upward and downward movements of the piston and an actuator sleeve therebelow are controlled by a barrel cam acting between the housing and the actuator sleeve.
Patent CA-1192255-A (CA)
Inventor: WATSON JOHN C
IPC: H01H85/048
Filed: 1983-03-25
Granted: 1985-08-20
Abstract: OVERLOAD PROTECTOR FOR A TELEPHONE SET          Abstract of the Disclosure An overload protector for a telephone set or other telecommunications terminal comprises an electrical component having DC continuity and DC resistance mounted by leads on a circuit board, the leads soldered to the conductor pattern.  A compression spring is positioned on each lead, held in compression between component and circuit board.  An insulating member fits around the component.  In application of an overload, the component heats up to a level at which sufficient heat travels down the leads to melt the solder. Usually both leads become unsoldered.  A convenient component is a carbon block resistor, in the Tip or Ring line.  The insulating member would be a sleeve loosely fitting over the resistor and retaining heat in the resistor.     -i-
Patent CA-1194555-A (CA)
Inventor: MACKEN JOHN A
IPC: B44B7/00
Filed: 1983-05-25
Granted: 1985-10-01
Abstract: ABSTRACT OF THE DISCLOSURE A non-contact laser engraving apparatus for reproducing on a work-piece an image, the image being formed on or in proximate relationship to a specularly reflecting surface of a cylindrical mirror being scanned laterally by a laser beam with the mirror in a focal plane.  The image is formed of a diffusely reflective substance with the beam then being appropriately brought to a focus at the workpiece.  Translation mechanisms are provided for providing relative movement between the workpiece and the image for recreating the image as an engraving in the workpiece.  Several embodiments are illustrated utiliz-ing mirrors or lenses or a combination of both for providing the scanning and focusing functions of the apparatus.
Patent CA-1194909-A (CA)
Inventor: THOMPSON PAIGE W
IPC: H01H35/26
Filed: 1983-06-03
Granted: 1985-10-08
Abstract: CONDITION RESPONSIVE ELECTRIC SWITCH           SYSTEM, ELECTRICAL SWITCHING DEVICE             AND METHOD OF OPERATION THEREOF             ABSTRACT OF THE DISCLOSURE       A condition responsive electric switch system comprises switch means which includes at least one set of contact elements defining a preselected open position, a preselected closed position, and a preselected initial contact make-break position, disposed between the open and closed positions.  Switch actuating means is movable in actuating relation with the switch means for operating the contact elements selectively into and  out of the three preselected positions.  Spring means and tempera-ture responsive means are connected to an impart motion to switch actuating means, with the spring means and tem-perature responsive means creating opposing forces on the switch actuating means.  The condition responsive electric switch system has both positive and negative spring gradients including a force producing means having maximum absolute positive gradient forces F1 and F2 in which F1 = maximum absolute positive gradient pre-load force on the contact elements at the preselected initial contact make-break position; F2 = maximum absolute positive gradient force on the contact elements at the preselected closed position wherein the value of the expression   should not be substantially less than unity.  A net contact elements force is also produced generally in the vicinity of zero as the contact elements pass at least through the preselected initial contact make-break position.  The system further includes means for adjusting the larger negative spring gradients in the system.       An electric switch device and a method of operating the switch device are also disclosed.
Patent CA-1205724-A (CA)
Inventor: HOULE GRATIEN
IPC: A01F29/00
Filed: 1983-06-28
Granted: 1986-06-10
Abstract: TITLE:  Improved cylindrical shredding rotor for shredding hay bales and the like ABSTRACT OF THE DISCLOSURE         A shredding rotor for use in portable hay bale shredding machines and the like.  It provides a smooth cylindrical surface which is less likely to catch strings, lines, cords and other similar fibrous objects that tend to wind around the revolving rotor in hay bale shredding machines.  It uses equilateral triangular cutters having three sharpened edges and a novel mounting means for the cutters to greatly facilitate installation of the cutters and maintenance of the shredding rotor.
Patent CA-1213465-A (CA)
Inventor: APPLEGATE STEVEN L
IPC: B41J33/36
Filed: 1983-07-05
Granted: 1986-11-04
Abstract: THERMAL TRANSFER MEDIUM FEEDING FOR CONSERVATION            Abstract Conservation of ribbon 40 is achieved by underfeeding ribbon 40 relative to movement of thermal print head 16.          Pressure of printhead 16 may be low enough that smearing from a typical ribbon 40 does not occur.  Gears 208, 210, 212, 214 and 216 may be positioned in one of two settings by action of bellcrank 230.  One position provides a 1.04 to 1 underfeed ratio and the other provides a 5 to 1 underfeed ratio. Control 232 lowers print current for the 5 to 1 ratio.  A printer having a single ratio of 1.04 to 1 provides printing of unimpaired quality with significant saving of ribbon.
Patent CA-1202381-A (CA)
Inventor: NAGATOMI AKIHIKO
IPC: H04N7/10
Filed: 1983-08-24
Granted: 1986-03-25
Abstract: ABSTRACT OF DISCLOSURE An improved high frequency signal changeover switch is provided for use especially as a horizontal-vertical selection switch in an artificial satellite broadcast receiving system for the purpose of selectively delivering either of vertical and horizontal polarization signals received at its two inputs, respectively, from its single output.         This inventive switch has the significant feature over the prior art switches that no mismatch occurs among all of these terminals.
Patent CA-1195115-A (CA)
Inventor: MOYERS THOMAS L
IPC: A01M23/24
Filed: 1983-09-15
Granted: 1985-10-15
Abstract: THOMAS L. MOYERS     SAFETY DEVICE FOR ANIMAL TRAPS     ABSTRACT OF THE DISCLOSURE      A safety device for positioning animal traps of the rotating frame type having spring actuated jaws, the device including a trap-engaging body portion con-nected to a handle, stationery retaining members ex-tending from the body portion, the device being movable to operatively engage the retaining members with the trap jaws to maintain the latter in the open or set position while the trap is being positioned for use. One or more pins extend outwardly from the body portion in predetermined relationship to the retaining members and trap jaws for preventing accidental disengagement of the device from the trap, the pin or pins being re-tractable to permit installation and removal of the safety device from the trap.
Patent CA-1206581-A (CA)
Inventor: BEUN ROGER A
IPC: H05K7/14
Filed: 1983-11-25
Granted: 1986-06-24
Abstract: LATCHING AND WITHDRAWING ASSEMBLY FOR PLUG-IN CIRCUIT PACKS Abstract of the Disclosure Plug-in circuit packs, as used in telecommunications systems are planar assemblies which slide into position in a support frame, with electrical connections usually made at the inner or rear end.  Assistance in withdrawal, and latching when in position are provided by a latching and withdrawing assembly at the front end of the circuit pack, having an integrally molded spring cantilever, free at its forward end and having an outwardly extending projection at its free end, the cantilever defining a channel in which slides an actuator.  The actuator has spaced side members joined at an inner end by a cylindrical member which slides in the channel.  Flange members are formed on the inner end of each side member.  Rotation of the actuator at its outermost position causes the flange members to bear on the free end of the cantilever to deflect it.  This disengages the outwardly extending projection at the free end of the cantilever from a detent in the support frame.  Projections on the side members bear against the support frame and bias the circuit pack out of the support frame.     - i -
Patent CA-1208850-A (CA)
Inventor: KUCHARSKA HELENA Z
IPC: C08J9/06
Filed: 1983-12-12
Granted: 1986-07-29
Abstract: Quaternary ammonium borohydrides of the formula < IMG > wherein R1, R2 and R3 may be the same or different and each is selected from alkyl, alkenyl, cycloalkyl, aryl, alkaryl and aralkyl groups and R4 is selected from alkyl and alkenyl groups having from 1 to 30 carbon atoms, are useful as blowing agents in foamable polyester compositions. Compounds of the above formula in which R1, R2, R3 and R4 are not all alkyl or R1, R2 or R3 is not benzyl when the remainder of R1, R2, R3 and R4 are all methyl or ethyl are believed to be novel. The new borohydrides are prepared by either mixing a borohydride salt and a quaternary ammonium salt in alkaline aqueous solution and extracting the resulting quaternary amine borohydride with an organic solvent or by reacting finely divided borohydride salt with an organic solution of quaternary ammonium salt.
Patent CA-1224647-A (CA)
Inventor: JUERGENS RAINER
IPC: B23P5/00
Filed: 1984-01-06
Granted: 1987-07-28
Abstract: A b s t r a c t A base powder mixture consisting of diamond material and solid support is inserted into the recess of a mold block for the manufacture of cutting elements for, in particular, deep drill bits, said mold block is then externally hermetically enclosed and hot isostatically pressed.
Patent CA-1209403-A (CA)
Inventor: PIATT MICHAEL J
IPC: B41J2/025
Filed: 1984-01-12
Granted: 1986-08-12
Abstract: INK JET PRINT HEAD              Abstract of the Disclosure An ink jet print head includes a manifold defining a fluid receiving reservoir, and an orifice plate  mounted  on  the  manifold  and  defining  a plurality  of  orifices  which  communicate  with  the reservoir.   Fluid  flows through  the  orifices  and emerges as fluid filaments which break up into jet drop streams.  A stimulator transducer contacts the orifice plate and, upon receipt of a drive signal, vibrates the orifice plate so as to cause bending waves to travel along the plate.  The bending waves stimulate the breakup of the  jet drop streams.   A sensor transducer is mounted on the orifice plate at the  opposite  end  thereof  from  the   stimulator transducer.   The  sensor  transducer produces  an electrical feedback signal which is proportional in amplitude  to the  amplitude  of  the  bending  waves.          This feedback signal is used by a drive circuit to control the amplitude of the drive signal applied to the stimulator transducer.  The sensor transducer is calibrated  by  observing  the  breakup  of  jet  drop streams as the drive signal is varied, and when an optimum  breakup  is  observed,  the  output  of  the sensor  transducer  is  adjusted to  a  predetermined amplitude  level.    This  adjustment  is  made  by applying  D.C.  pulses  of  proper  polarity  to  the sensor    transducer    poling  the   piezoelectric transducer.
Patent CA-1206056-A (CA)
Inventor: CHANG JIMMY C POWELL STREET SA
IPC: G07D9/00
Filed: 1984-01-24
Granted: 1986-06-17
Abstract: ABSTRACT OF THE DISCLOSURE       An elongated trough-like body has inclined sides deeper and wider than the largest coin handled having a grooved bott-om with a radius larger than the largest coin handled enabling the unaligned coins to be shaken and formed into an aligned stack where their count is indicated by adjacent scales.
Patent CA-1211763-A (CA)
Inventor: LOEBACH MICHAEL H
IPC: B65H39/065
Filed: 1984-02-21
Granted: 1986-09-23
Abstract: ABSTRACT           A gripper mechanism for printing press folding machines or other sheet handling equipment comprises a rigid holder mounted on a pivot shaft and a resilient gripper finger, fixed to the holder, which pivots into engagement with an angled clamping surface.  The geometry of the gripper finger relative to the holder is such that the rigid holder and resilient finger act as a linkage which, upon application of counterforce by the clamping surface, imparts a radial component of force to the gripper tip equal and opposite to the radial component of counterforce, thereby producing non-sliding engagement of a sheet of paper positioned between the clamping surface and said tip.
Patent CA-1209814-A (CA)
Title: Structures
Inventor: WICKS STEVEN J
IPC: E02B17/00
Filed: 1984-02-27
Granted: 1986-08-19
Abstract: ABSTRACT OF THE DISCLOSURE    A structure mounted on the seabed provides a working station above the sea level.  The structure has inner and outer steel skins linked by steel webs.  The space between the steel skins is filled with cementitious material.  The skins are built-up from individual steel plates welded to the webs and to each other so as to provide an impervious covering for the cementitious material.  The spacing between the webs is less than four times the spacing between the skins to ensure that the plates do not lose integrity with the concrete when the structure is under loads.    The structure provides an efficient resistance to punching or impact from ice masses or ships and so is particularly suitable for use in oil production in artic environments.
Patent CA-1209565-A (CA)
Inventor: SHIMP DAVID A
IPC: C08G59/68
Filed: 1984-03-26
Granted: 1986-08-12
Abstract: ABSTRACT OF THE DISCLOSURE           Curable compositions are made from polyepoxide resins and hindered aromatic diamines accelerated with copper fluoborate.          Cured products obtained from these compositions are useful in oil well casings, geothermal piping, chemical piping and tankage, filament wound large composites and the like.
Patent CA-1222272-A (CA)
Inventor: ANDREASSON JAN
IPC: H05B3/34
Filed: 1984-04-27
Granted: 1987-05-26
Abstract: Abstract It has been found that in heating pads for seats, preferably car-seats, in which the heating pad (1 and 2) covers both seat and back-rest, an energy recoil from the back-rest may occur.  The invention reduces said recoil  by  dimensioning  the  resistance  wire  (11)  in  the  section (4 and 6) of the heating pad (1 and 2) covering the seat and of the resistances wire (10) in the section (3 and 5) of the heating pad (1 and 2) covering the back-rest in such a way that the ratio between the resistance of the first-mentioned resistance wire (11) and that of the last-mentioned  resistance wire  (10)  increases  when  current  flows through.
Patent CA-1236784-A (CA)
Inventor: WRIGHT IAN G
IPC: A61K39/018
Filed: 1984-05-07
Granted: 1988-05-17
Abstract: ABSTRACT     A method of preparation of babesiosis antigen including the steps of:  (i)    forming a crude babesiosis antigenic fraction which is derived from a lysate of Babesiainfected erythrocytes or soluble fraction thereof;  (ii)   forming monoclonal antibody to said babesiosis antigenic fraction by cloning antibody producing cells from an animal having been administered thereto said babesiosis antigenic fraction;  (iii)  absorbing said monoclonal antibody onto an absorbent and passing said babesiosis antigenic fraction through said absorbent whereby an antigen specific to said monoclonal antibody may be bound thereto;  and (iv)   separating the specific antigen from the monoclonal antibody,
Patent CA-1244739-A (CA)
Inventor: CHOW HECTOR
IPC: A61B17/072
Filed: 1984-06-01
Granted: 1988-11-15
Abstract: ABSTRACT OF THE DISCLOSURE   A disposable linear surgical stapling instrument com-prising a body with handle means and trigger means and, at its forward end, a fixed anvil-supporting jaw.  A movable jaw comprising a staple cartridge is mounted on the body and is operatively connected to the handle means and trigger means.  An adjustment bolt is slidably mounted in the body and is shiftable forwardly and rear-wardly therein by an adjustment knob rotatively mounted at the rearward end of the body.  The adjustment bolt, when shifted forwardly, shifts the handle means and trigger means forwardly and the movable jaw toward the fixed jaw, the staple cartridge approaching the anvil. staple driver is connected to and shiftable by the trigger means to drive staples from the cartridge, through the tissue to be sutured and against the anvil over a range of distances between the anvil and the cartridge constituting the working gap of the instrument.          The adjustment bolt also actuates indicator means to each side of the instrument indicating when the working gap has been achieved.  An alignment pin is mounted on the body, extending through the cartridge, and is shiftable to an operative position extending into the fixed jaw.          Safety means prevents rotation of the adjustment knob unless the alignment pin is in its operative position.          Another safety means prevents actuation of the trigger means until the distance between the anvil and cartridge approaches the working gap.  Additional means locks the trigger means after achieving its actuated position to give visual, tactile and audible indication that the staples have been formed and implanted.
Patent CA-1229140-A (CA)
Inventor: PETERSON DONALD E
IPC: H01R13/56
Filed: 1984-07-17
Granted: 1987-11-10
Abstract: ABSTRACT OF THE DISCLOSURE         A strain relief for a power cord for electric devices includes a molded insulating body into which the power cord extends? a grounding lug extending from another side of the body and connected to the ground lead of the power cord.  Grooves are provided in the sides of the body to enable the body to be assembled in a slot of the electric device, with the grounding lug of the strain relief adjacent a wall of the electric device, so that the grounding lug may be held to the wall of the device by a screw.  The ground-ing lug may be used to function as a strain relief or auxiliary metal may be provided as a retainer.  Connectors extending from the device on the portion opposite the grounding lug are adapted to be connected to leads within the electric device, the connectors being for example spade lugs.  A fault sensing device such as an automotive fuse may be coupled to additional connectors on the body.
Patent CA-1225473-A (CA)
Inventor: FELL DONALD R
IPC: A47C27/14
Filed: 1984-07-25
Granted: 1987-08-11
Abstract: Abstract:    A fire blocking liner is proposed for location in an aircraft seat cushion (either lower or back cushion) between the inner core of foam and the outer dress cover. In addition to being made of a fire resistant material, this liner is designed to act as a tray to retain liquified foam in the event of a fire, thus helping to avoid spread-ing the fire.  In the case of the lower cushion, the tray effect is achieved by constructing the bottom and side panels of a substantially liquid tight, metalised fire resistant material.  On the other hand, the upper panel on which the passenger sits is made of an unmetalised material for comfort.  In the case of the back cushion, the major portion of the front vertical panel against which the passenger leans is again made of unmetalised material for comfort, while the tray effect is achieved by using the metalised material for the lower portion of this front panel and for the corresponding lower portions of the rear and side vertical panels as well as the bottom panel.
Patent CA-1222571-A (CA)
Inventor: NISHITANI TAKAO
IPC: H03M3/04
Filed: 1984-07-27
Granted: 1987-06-02
Abstract: Abstract of the Disclosure:       In an adaptive encoder encoding an encoder input signal into an encoder output signal by carrying out adaptive prediction, an encoder calculation circuit calculates electric power of an encoder electric signal related to the encoder input signal and the encoder output signal.  The adaptive prediction is interrupted by an encoder interruption circuit when the electric power is not greater than a reference electric power.          The electric signal may be either the encoder input signal or the encoder output signal.  Preferably, a local decoded signal is monitored as the encoder electric signal by the encoder calculation circuit.  When adaptive quantization is carried out in the encoder, an adaptive step size may be given as the electric signal to the encoder calculation circuit.  An adaptive decoder comprises a decoder calculation circuit for calculating electric power of a decoder electric signal related to either a decoder input signal or a decoder output signal in a manner similar to the encoder calculation circuit.          A decoder interruption circuit interrupts adaptive opera-tion in the decoder like the encoder interruption circuit.
Patent CA-1242643-A (CA)
Inventor: FOSSEL ERIC T
IPC: A61K49/06
Filed: 1984-08-09
Granted: 1988-10-04
Abstract: ABSTRACT            The subject invention is a process for NMR diagnostic imaging comprising introducing into a mammalian body a chemical shift reagent in an amount capable of altering the resonance frequency of atomic nuclei of diagnostic interest, and thereafter depicting the resulting shift in resonance frequency on a com-posite NMR signal spatial representation.
Patent CA-1240955-A (CA)
Inventor: MILLNER WILLIAM O
IPC: B21C3/18
Filed: 1984-08-13
Granted: 1988-08-23
Abstract: ABSTRACT A nib for a drawing die, and a method of its manufacture, is provided wherein subsequent nibs recut from the original nib are geometrically similar to the original nib, thereby minimizing the increase in the lengths of the reduction cavity and bearing cavity.