baber/WOPTO huggingface dataset:
Patent CA-1082797-A (CA)
Inventor: CULLEN DONALD E
IPC: G01L9/00
Filed: 1978-02-22
Granted: 1980-07-29
Abstract: ABSTRACT OF THE DISCLOSURE    A diaphragm formed in a substrate and having a piezo-electric surface includes a first surface acoustic wave (SAW) delay line disposed on said surface and connected in an oscillator circuit for a significant frequency sensitivity to surface strain of said diaphragm, and a second, similar oscillator with the SAW delay line thereof connected for a significant frequency sensitivity to surface strain of the diaphragm opposite in sense to that of the first oscillator, and a mixer for providing the difference in the frequencies of the two oscillators, whereby the overall sensitivity to strain is enhanced, while at the same time the sensitivity to temperature variations is reduced significantly through subtractive combination.     The invention disclosed herein was made in the course of or under a contract with the Department of the Navy.
Patent CA-1098423-A (CA)
Inventor: BARNES DEREK
IPC: B27L7/00
Filed: 1978-03-13
Granted: 1981-03-31
Abstract: ABSTRACT OF THE DISCLOSURE         A process is disclosed for making long wood strands.          Long wood strands are required in structural lumber products and in order to obtain maximum strength should be split along the grain.  A method of splitting a log into longitudinal wood strands is disclosed comprising the steps of radially splitting the log substantially along the grain of the log into a plurality of sector shaped segments, and further splitting each of the sector shaped segments substantially along the grain of the segment into a plurality of longitudinal grain wood strands.
Patent CA-1084369-A (CA)
Inventor: ZABONICK JERRY L
IPC: F16D25/0635
Filed: 1978-03-20
Granted: 1980-08-26
Abstract: ABSTRACT OF THE DISCLOSURE A fluid actuatable fan clutch having an energy absorbing internal caliper action, including a pulley or sheave rotatably mounted on a fixed shaft; an annular friction facing connected to an internal surface of the sheave; a fan blade hub rotatably mounted on the shaft adjacent the sheave, the hub having an annular piston cavity or cylinder having a piston located therein facing the friction facing, the piston being normally urged out of contact with the friction facing by a suitable spring member; an annular thrust cap located on the side of said friction facing opposite the piston, the thrust cap being connected to the fan hub and being normally out of contact with the friction facing; and suitable passageways for supplying air or other fluid to the back side of said piston for urging the piston into contact with said friction facing and against said thrust cap to thereby engage the fan hub with the sheave.  The fan clutch also has a removable fan hub cap for permitting access to the airseal located at the outer end of the shaft to thereby permit easy replacement thereof.  The fan clutch is further provided with a safety retaining ring located on the shaft to prevent the fan hub and connected parts from being thrust outwardly off the shaft in the event of a clutch failure.
Patent CA-1112127-A (CA)
Inventor: BOLSSENS FRANS P J
IPC: H02G1/12
Filed: 1978-05-01
Granted: 1981-11-10
Abstract: Abstract of the Disclosure The valve includes an input port and two output ports and an arrangement to cause fluid pulses to appear at the output ports as a result of the appearance of fluid pulses at the inlet port.  The fluid pulses fed to the inlet port directly appears at the outlet ports and directly causes the valve to pass at lest through three successive positions for every two successive pulses at the inlet port.  This valve controls the operation of a pneumatic control circuit of a wire cutting, skinning and wrapping tool which is mounted in the handgrip of the tool.
Patent CA-1120007-A (CA)
Inventor: GERSTER-VOGTLI WERNER
IPC: B65D45/34
Filed: 1978-05-18
Granted: 1982-03-16
Abstract: INVENTOR:  WERNER GERSTER INVENTION: TENSIONING HOOP     Abstract of the Disclosure A tensioning hoop for sealingly closing a container, such as a drum or barrel, with a matching lid; the hoop is made of an elongated metal member for substantially encompassing the periphery of the lid and the rim of the container aperture; the ends of the elonqated metal member form a variable slot and are provided with two substantially flat members forming a hoop actuating device; one end of each flat member is pivotably conn-ected with the flanged upper hoop portion near the slot and both flat members are pivotably connected with each other. The actuat-ing device is shaped in conformity with the hoop so as not to pro-trude from the outer periphery thereof and can be operated repeat-edly for removal of the lid from the container and for closing the container with the lid. The novel tensioning hoop provides for substantial cost reductions and is suitable for use in automated container packaging without manual operation of the actuating de-vice.
Patent CA-1101503-A (CA)
Inventor: SEIDEL HAROLD
IPC: H03F3/24
Filed: 1978-07-13
Granted: 1981-05-19
Abstract: Abstract:    Improved interferometric amplification is achieved by separating the input signal in accordance with the signal's projection on two orthogonal reference signals, with one of the reference signals capable of following the instantaneous frequency of the input signal.  The separated signals are further separated into constant amplitude variable phase signal pairs defining the projected signals, and the constant amplitude signals are amplified and appropriately combined to form a signal that is an amplified replica of the input signal.
Patent CA-1098466-A (CA)
Inventor: MURRAY ROBERT G
IPC: C10G1/04
Filed: 1978-07-17
Granted: 1981-03-31
Abstract: PROCESS AND APPARATUS FOR SEPARATING COARSE SAND PARTICLES AND RECOVERING BITUMEN FROM TAR SANDS               ABSTRACT OF DISCLOSURE            A system for effecting a sharp separation from tar sands of the large weight fraction of coarse materials present therein and for recovering bitumen, or tar, from the retaining product, wherein, as a first step, finely divided particles of a tar sand are added to a liquid hydrocarbon solvent in an agitation zone to form a dilute solution of the bitumen component which is agitated to maintain both the coarse as well as the fine solid particles present in a well dispersed condition.  This dispersion flows downwardly from the agitation zone and through a shallow conduit, generally rectangular in cross section and having an opening extending across its bottom portion over which the dispersion passes.  During the short residence time of the dispersion over the opening, the coarse sand particles, which under the influence of gravity fall faster than the fines, selectively drop out of the dispersion and pass through the conduit opening into an underlying sand-receiving chamber.  The latter is continuously provided with solvent which wells up into the bitumen solution passing overhead which still contains the fines portion of the dispersion.
Patent CA-1107644-A (CA)
Inventor: SCHALL ROY F JR
IPC: G01N33/532
Filed: 1978-07-26
Granted: 1981-08-25
Abstract: ABSTRACT OF THE DISCLOSURE     A new diagnostic labeled spine tool is disclosed for use in immunoassay technique, e.g., determination of a compo-nent of the antigen-antibody reaction.  The new tool is a labeled-spine material product of the formula:     (XVI)   where R is an organic group labeled with a radioisotope, fluores-cent group, lysis-initiating compound, enzyme, pr other suitable marker material; T1 and T2 are any of -CH3,  ,  , -CH2OH, -CH?SH, and -NH2;          X is selected from the group consisting of (CH2)m. where m is an integer from 0 to about 10, phenylene, hydroxyl-substituted phenylene, halogen-substituted phenylene, alkyl sub-stituted phenylene or aminated phenylene groups; a is 0, 1 or 2; b is 2-a, with the proviso that there be at least two R groups in the product; and n is a number from 1 to about 100,000 The new tool provides higher specific activity for labeled sub-stances thus facilitating determination of the desired compound.          Preferably R is an enzyme, a is one, and X is of the formula (CH2)m, where m is from 2 to 5.
Patent CA-1057957-A (CA)
Inventor: SAWRENKO PETER
IPC: B24B23/04
Filed: 1978-09-25
Granted: 1979-07-10
Abstract: ABSTRACT      A hone adapted to be used with a domestic electric knife.  The knife comprises an electric motor compartment and a reciprocable drive from the motor to a take off point adjacent one end of the motor compartment. There are attachments on the drive to enable reciprocable drive of blades from the take off point.  The hone comprises two carrying arms each having at a first end engagement means to engage the attachment in the motor compartment at the take off point.  A hone member is attached to each carrying arm adjacent a longitudinal edge of that arm - the arms are held together as they reciprocate when driven by the electric motor.
Patent CA-1102142-A (CA)
Inventor: LIVESEY-GOLDBLATT ERIC
IPC: C22B3/08
Filed: 1978-10-23
Granted: 1981-06-02
Abstract: TITLE            A process for the recovery of useful materials from calcines.                    ABSTRACT OF THE DISCLOSURE        The invention concerns the recovery of non-ferrous metals, such as gold, uranium or the like from iron oxide containing calcines which have the non-ferrous metal present in solid solution and/or encapsulated within the iron oxide.      The calcine is reacted, while stirring vigorously, with sulphuric acid or another strong inorganic acid to cause the iron to form the ferric salt.  The material obtained is mixed with water and the liquid and solid phases are separated from each other.  The non-ferrous metal is then obtained from at least one of these phases by leaching, or the like.                               -1a-
Patent CA-1091447-A (CA)
Inventor: OHNO IETATSU
IPC: B24B1/00
Filed: 1978-11-06
Granted: 1980-12-16
Abstract: GRINDING METHOD AND APPARATUS            ABSTRACT OF THE DISCLOSURE     A grinding method characterized in that a rotatably arranged grinding tank and downward projecting spindles rotatable in any direction on a stationary or rotatable main shaft stand positioned above the grinding tank and fitted to a fitting column body are provided, the grinding tank is charged with such grinding materials as hone grains and is stopped or rotated at a low or high speed depending on the work product.  The work product to be ground is fitted to the spindle on the main shaft stand, is put into the grinding materials within the tank and is rotated reversely to or in the same direction as of the rotation of the grinding tank or is stopped and the work or the grinding tank is moved up and down and for-ward and rearward so that the work may be ground in a low pressure fluid state or high pressure fluid state.  The tank is sealed to permit high grinding pressures when the tank and work products are rotated at high speeds.
Patent CA-1082020-A (CA)
Inventor: FRYKHULT RUNE H
IPC: D21D5/26
Filed: 1978-11-24
Granted: 1980-07-22
Abstract: ABSTRACT OF THE DISCLOSURE           The paper-making stock is fed continuously to a tank with two chambers separated by a partition having an opening for passage of stock from the first to the second chamber, evacuation means being provided for maintaining equally low gas pressures in the two chambers.  A stock con-sumer is connected to a stock outlet of the first chamber, and stock from an outlet of the second chamber is returned to the tank via a recycle line.  Means for sensing the stock level in the first chamber are provided to control valve means in the recycle line, whereby said stock level is main-tained constant.
Patent CA-1095235-A (CA)
Inventor: SCHMOHL MICHAEL W
IPC: A43B5/00
Filed: 1978-11-28
Granted: 1981-02-10
Abstract: CONTINUOUS OUTSOLE FOR SPORTS SHOE     ABSTRACT OF THE DISCLOSURE     A continuous outsole for a sports shoe has a profile pattern characterized by a first large circular pattern section at the area of the ball of the foot and a second large circular pattern section at the heel area.  Each large circular pattern section has a center point that is disposed substantially on a longitudinal dividing line that extends from an end of the toe por-tion to an end of the heel portion and divides the out-sole into two substantially equal longitudinal areas.
Patent CA-1101653-A (CA)
Inventor: ANDERSON LLOYD E
IPC: B26B5/00
Filed: 1978-12-22
Granted: 1981-05-26
Abstract: CUTTING TOOL AND BLADE HOLDER FOR        REPLACEABLE BLADES                      Abstract A cutting tool designed for changing or reposi-tioning blades without requiring internal access to the tool, as by opening or otherwise taking the handle apart for access to the blade.  The tool in one preferred form has only the end opening, out of which the blade extends for cutting, for gaining access to the blade to reposition or change it.           A blade holder for holding a cutting blade rigidly in place while cutting but allowing the blade to be readily repositioned in or removed from the holder for replacement or positional adjustment therein.  The holder is configured such that it adjustably and slidably holds the cutting in a selected position by lateral surface area contact or wedging of the blade in the holder in a cutting position.
Patent CA-1092493-A (CA)
Inventor: CEDERGREN KARL I
IPC: B27L7/04
Filed: 1979-01-09
Granted: 1980-12-30
Abstract: ABSTRACT OF THE DISCLOSURE           A protective contrivance for a wood splitting machine having a rotatable splitting element having a screw-like fore end with a drill point, and a work-table which is located under the splitting element and provided with a table plate extending towards and under the splitting element, whereby the protective contrivance protects the drill point from unintentional contact.          A disk-shaped protective element is fastened to a swivel arm and extending up through a groove in the table plate.  The pro-tective element is biased to a position where one of its end edges is situated close to the drill point.  The protective element, when it is forced down into the table plate, is swung such that the end edge is moved away from the drill point and the protective element, when it is returning towards the initial position, strives to position its protective portion adjacent the drill point before this has pierced through a piece of wood being split.
Patent CA-1130049-A (CA)
Title: Prevention of pvc polymer buildup in polymerization  reactors using oxalyl bis(benzylidenehydrazide)  and alumina
Inventor: WEIMER DEAN R
IPC: C08F14/00
Filed: 1979-02-19
Granted: 1982-08-17
Abstract: Abstract of the Disclosure Polymer buildup in polymerization reactions during vinyl chloride polymerizations is greatly reduced by applying a water dispersion of alumina and oxalyl bis(benzylidenehydrazide)  (OABH) to the reactor surfaces exposed to the polymerization medium prior to carrying out the polymerization.  Long term effects of the buildup pre-ventor can be obtained by applying a caustic wash to the reactor walls, prior to applying the oxalyl bis(benzyli-denehydrazide) and alumina dispersion.  The effect of the OABH/alumina and caustic is synergistic since the preven-tative effect is greater than either material used alone,
Patent CA-1129503-A (CA)
Title: Controlled electric heating apparatus for stacking  clips in insulator
Inventor: FRIESE EGON F
IPC: H01R13/426
Filed: 1979-05-11
Granted: 1982-08-10
Abstract: E. F. Friese 2 CONTROLLED ELECTRIC HEATING APPARATUS    FOR STACKING CLIPS IN INSULATOR     ABSTRACT OF THE DISCLOSURE     A temperature controlled heat delivery head for heat staking electrical contact retention clips in rapid succession in an insulator.  A large heat-conductive body acts to store heat and to deliver it to a substantially smaller heat-conductive projection.  The body is maintained at, for example, about 820°F.  The projection is maintained at, for example, about 830°F.  Two refractory portions carry the body.  Separate independent thermocouples control heater current to respective heating elements via respective temperature controllers connected with the body and projection, respectively.
Patent CA-1104316-A (CA)
Inventor: SCHUPLIN JEROME T
IPC: F21V21/02
Filed: 1979-05-16
Granted: 1981-07-07
Abstract: ROTATABLY INSTALLED SUSPENSION CLIP          ABSTRACT OF THE DISCLOSURE         A suspension clip for assembly with a beam support having a base flange, such as for instance an inverted T-beam.          The clip is formed of resilient sheet material and comprises a generally flat body and reversely bent arms extending generally parallel to the body on the same side of the latter, from oppo-site edges of the body, with each arm including a generally up-standing tab extending generally perpendicular to the plane of the body. The clip is adapted to be placed against the underside of the base flange of the support beam, and rotated to cause the body and coacting arms to resiliently grasp the base flange.  The body may have dependent structure for attaching an article to the beam-clip assembly.
Patent CA-1112292-A (CA)
Inventor: HARRISON GEORGE C
IPC: G02B7/40
Filed: 1979-05-25
Granted: 1981-11-10
Abstract: ABSTRACT OF THE DISCLOSURE         Electronic flash apparatus for a camera having automatic focusing with sonic ranging has a charge control system which inhibits charging of the flash tube capacitor during at least the automatic focusing operation of the camera.  The flash apparatus thus schedules capacitor charging to occur at times other than the sonic ranging for automatic focusing, and thereby avoids the likelihood that spurious radiation from the capacitor-charging oscillator interferes with the sonic ranging operation.
Patent CA-1099800-A (CA)
Title: Electrical connector
Inventor: NIX LOTHAR H W
IPC: H01R12/16
Filed: 1979-07-06
Granted: 1981-04-21
Abstract: ABSTRACT         An electrical connector housing is formed of two relatively slidable parts movable between a condition in which contact cavities are aligned, for insertion of contacts and a condition in which the cavities are slightly out of alignment so that one housing part presents shoulders overlapping edges of cavities in the other part for positively retaining contacts in the other part.  The housing parts have interengaging guide means and resilient latch means securing the housing parts in the second condition.
Patent CA-1133902-A (CA)
Inventor: EICKEN KARL
IPC: C07D257/04
Filed: 1979-07-10
Granted: 1982-10-19
Abstract: ABSTRACT:               The invention relates to tetrahydro-1,3-oxazines of the formula (II)   where R denotes linear or branched haloalkyl of up to 3 carbon atoms, R1, R2, R3, R4 and R5 are identical or different and each denotes hydrogen or linear or branched alkyl of up to 3 carbon atoms, R6 denotes hydrogen or linear or branched alkyl of up to 8 carbon atoms, R7 denotes hydrogen, linear or branched alkyl of up to 8 carbon atoms, alkoxyalkyl of up to 6 carbon atoms or dialkoxyalkyl of up to 8 carbon atoms, and R6 and R7 may together form a methylene chain of 4 to 5 carbon atoms. The invention also relates to a process for combatting unwanted plant growth in Indian corn and cereal crops, in which these compounds of formula (II) are used as antagonistic agent to increase the tolerance of crop plants to herbicidal acetanilides.
Patent CA-1127939-A (CA)
Title: Mold for directionally solidified single  crystal castings and method for preparing  same
Inventor: BURD LAMAR
IPC: B22C9/04
Filed: 1979-07-13
Granted: 1982-07-20
Abstract: MOLD FOR DIRECTIONAL SOLIDIFIED SINGLE CRYSTAL     CASTINGS AND METHOD FOR PREPARING SAME                Abstract of the Disclosure A shell mold for producing directionally solidi-fied single crystal metal castings in which use is made of a crystal selector of helical shape wound about a support of a non heat disposable material which eliminates the need for providing a crystal selector of sufficient dimension for self support or other supporting means and which may form a part of the pattern assembly about which the shell mold is formed.
Patent CA-1118269-A (CA)
Inventor: KUEPER THEODORE V
IPC: A23L29/281
Filed: 1979-07-16
Granted: 1982-02-16
Abstract: GELATIN DESSERT COMPOSITION             ABSTRACT OF THE DISCLOSURE           A gelatin dessert composition comprising a syrup containing water, dissolved gelatin, and from about 30% to 200% by weight of the gelatin of food grade acid, preferably selected from the group consisting of citric acid, malic acid, ascorbic acid, erythorbic acid and mixtures thereof.
Patent CA-1131564-A (CA)
Inventor: TAKAHASHI HIROSHI
IPC: G10K15/02
Filed: 1979-07-17
Granted: 1982-09-14
Abstract: ABSTRACT OF THE DISCLOSURE     In a digital signal mixing apparatus for mixing S-channel input digital signals to obtain T-channel output digital signals, there are provided a memory in which matrix elements [S x T] are stored with digital form, a circuit which determines the matrix elements [S x T] in response to a desired mixing ratio between the S-channel input digital signals and supplies the above matrix elements to the memory, and a circuit which operates the S-channel input digital signals with the matrix elements read out from the memory to generate the T-channel output digital signal therefrom.
Patent CA-1133595-A (CA)
Inventor: CROOKS ROBERT C
IPC: H03G3/04
Filed: 1980-01-22
Granted: 1982-10-12
Abstract: ABSTRACT According to the present invention circuit means and method are provided which correct for variations in an amplifier load such as a speaker by sensing the load current, developing a feedback signal related to the load current, comparing this feedback signal with the amplifier program, and instantaneously adjusting the gain of the amplifier to compensate for load current deviations from the program applied to the amplifier. By this means the performance of the speaker or other load that is driven by the amplifier is positively controlled and forced to track accurately with the program applied to the amplifier despite such opposing factors as reactance or inertia of the load, whereby the acoustic or other load response is a substantially accurate reproduction of the program.
Patent CA-1136953-A (CA)
Inventor: WEIRICH WALTER
IPC: F16K17/04
Filed: 1980-03-21
Granted: 1982-12-07
Abstract: ABSTRACT        A pressure-relief valve device, especially for use with hydraulic props, has a main hollow housing containing a guide piece with a through bore in which a cylindrical shank of a valve or piston member is received. The shank is slidable within the guide piece bore and is held, by a spring force applied to a head thereof, in a closed position.          The shank has a blind axial bore leading through five, or preferably six radial borings to outlets at its periphery. An O-ring held in a groove in the wall of the guide piece bore engages on the peripheral surface of the shank. An elastic deformable thrust disc is located in the groove and contacts a wall of the groove adjacent the head of the valve member as well as the O-ring. The thrust disc serves to prevent creep of the O-ring during use whereby excess fluid pressure acts to displace the valve member against the restoring force of the spring to move the outlets of the shank of the valve member passed the O-ring to allow pressure-relief.