baber/WOPTO huggingface dataset:
Patent CA-1059323-A (CA)
Inventor: FLEIGLE DONALD E
IPC: A01D34/73
Filed: 1976-07-13
Granted: 1979-07-31
Abstract: ABSTRACT             In a cordless electric rotary lawnmower, for example, of the type having two counter-rotating blades, a blade configuration providing substantially improved efficiency and performance is disclosed. The lawn mower is battery operated and each blade in a twin blade mower, or the single blade of a single blade mower, is provided with a configuration to maximum cutting effectiveness, air flow and blade life. The blade comprises a generally rectangular strip of metal having a cross section defined by two parallel spaced flat surfaces joined at their ends by generally tapering surfaces. The flat surfaces extend across approximately 50 to 70% of the total width of the blade adjacent the blade ends and preferably extend across about 60%. In addition, the blade deviates from a rectangular strip in that its outer portions are twisted downwardly from a planar portion at the center to define a lift angle to obtain axial air flow. On the bottom surface of the outer portions, the tapering surface comprises a flat to provide a sharp cutting edge.
Patent CA-1085400-A (CA)
Title: Procede de preparation de nouveaux derives phenoxy
Inventor: BEREGI LASZLO
IPC: A61P3/04
Filed: 1976-07-14
Granted: 1980-09-09
Abstract: De nouveaux dérivés phénoxy de formule générale I: I dans laquelle R et R', identiques ou différents, sont hydrogène, halogène, alkyle, alcoxy ou alkylthio de C1 à C5, nitro, amino, thifluorométhyle, trifluorométhylthio, trifluorométhoxy, alcoxycarbonyle de C2 à C6, ou diméthylsulfamoyle, et leurs sels d'addition avec des acides compatibles, sont préparés par réaction d'une phénoxyaniline de formule II: II avec une bis-(.beta.-halogénoéthyl) amine de formule III: III dans laquelle X est halogène, puis alcalinisation de l'halogénhydrate ainsi formé. Les nouveaux dérivés de formule I et leurs sels physiologiquement tolérables sont utilisés en thérapeutique notamment dans le traitement des troubles du métabolisme des lipides et des glucides.
Patent CA-1052836-A (CA)
Inventor: THUMM HERBERT H
IPC: F16J15/32
Filed: 1976-09-28
Granted: 1979-04-17
Abstract: LUBRICANT SEAL          ABSTRACT OF THE INVENTION           A unitized, hand installable lubricant seal for sealing between a bore and a shaft subject to rotation relative to each other, such as a vehicle wheel hub and axle, provides a resilient surface for sealingly engaging the bore, a resilient surface for sealingly engaging the shaft and a resilient seal lip to rigid wear surface running seal between the resilient surfaces.  No  special tools are required to install or remove the seal.
Patent CA-1086967-A (CA)
Inventor: FUKUICHI TAKURO
IPC: G04G9/00
Filed: 1976-10-12
Granted: 1980-10-07
Abstract: ABSTRACT A digital electronic watch comprises a time display device; time indicating circuitry for producting an actual time of day indication, for display by the display device; alarm time storage circuitry; an alarm setting circuit by which an alarm time may be set in the storage circuitry; an alarm for producing a warning when the set alarm time and the actual time of day indication coincide; display illuminating means; and means for preventing more than one of the alarm and the illuminating means from being in an energised state at any time.  By preventing simultaneous energization of the alarm and the illuminating means, the power drain upon the battery of the watch is considerably decreased.
Patent CA-1087325-A (CA)
Inventor: HAYASHI HIROSHI
IPC: G21C7/08
Filed: 1976-11-05
Granted: 1980-10-07
Abstract: METHOD OF CONTROLLING POWER OF NUCLEAR REACTOR          ABSTRACT OF THE DISCLOSURE         A method of controlling the power of a nuclear reactor comprising adding a liquid poison to heavy water in the reactor core before extracting control rods to a desired pattern, extracting the control rods from the reactor core to the desired pattern maintaining the reactor power lower than a desired power level and, thereafter, removing the poison from the heavy water.
Patent CA-1061017-A (CA)
Inventor: SALEM ROBERT J
IPC: G08B17/12
Filed: 1976-11-16
Granted: 1979-08-21
Abstract: ABSTRACT OF THE DISCLOSURE           A smoke detector of the ionization type is provided with a movable test target or probe for intercepting alpha radiation within the measuring chamber when moved to a particular position.  As a result of the interception of alpha particles, the electrical resistance of the chamber between a pair of electrodes is increased.  Since the electrical resistance similarly increases when airborne products of combustion enter the measuring chamber, the operative position and size of the test target may be selected such that its movement to its operative position results in electrical simulation of a pre-determined level of airborne products of combustion within the measuring chamber.
Patent CA-1053331-A (CA)
Inventor: WILLS FRANK E
IPC: G05F1/455
Filed: 1977-01-05
Granted: 1979-04-24
Abstract: ABSTRACT           The phases of a three-phase AC power supply are applied to a three-phase load, such as a motor, by respective ones of three triacs.  Three alternating voltages, phase-displaced by 120°, appear across the triacs.  When each alternating voltage is in its half cycles of one polarity, for example when the main terminal T2 is negative relative to the main terminal T1 of the triac to which the voltage is applied, the triac conducts continuously. During the half cycles of the opposite polarity, however, the conduction angle or time of each triac is varied in response to a control effect.  In this way, the magnitude of the phase voltages applied to the load are varied to control the operation of the load, such as to vary the speed of the motor.  No neutral point exists for the load currents so a triac, during the negative excursion of its main terminal T2, cannot conduct unless the terminals T2 of the other two triac are in a positive excursion and have been triggered into conduction.  A feedback arrangement insures that for a given control effect any undesired variations of the load voltages will be balanced out or compensated.
Patent CA-1065801-A (CA)
Inventor: HERZOG MILTON W
IPC: A47F5/00
Filed: 1977-01-11
Granted: 1979-11-06
Abstract: INVENTORY-CONTROL MERCHANDISE DISPLAY APPARATUS     ABSTRACT OF THE DISCLOSURE          Merchandise display apparatus here includes an upright support and a cantilever arm extending from the support.  The arm bears demarcations distributed along its length to provide a measure of the amount of merchandise on the rod and a label at a portion of the arm remote from the support enabling the arm to be related to the merchandise on the arm.  The transverse size of the arm all along its length including the demarcations and the label-bearing portion is limited so that the arm can readily enter a conventional opening in merchandise-bearing cards that are to be loaded onto and removed from the arm.
Patent CA-1077595-A (CA)
Inventor: HYDE MICHAEL B
IPC: B60Q5/00
Filed: 1977-03-14
Granted: 1980-05-13
Abstract: "BACK-UP ALARM ACTIVATION MECHANISM     FOR POWER SHIFT TRACTORS "     ABSTRACT OF THE DISCLOSURE            An apparatus for signalling an intended reverse operation of a mechanism having a shift lever selectively positionable in forward, neutral, and reverse positions prior to placement of the shift lever in the reverse posi-tion for effecting reverse operation.  The apparatus includes an activating structure responsive to movement of the shift lever in the neutral position toward the reverse position for activating the control of a signalling device prior to reverse operation of the mechanism.  The apparatus is adapted for use in signalling the back-up operation of a vehicle, such as a tractor, before the tractor starts in a reverse direction motion.
Patent CA-1089542-A (CA)
Inventor: WILSON DENNIS R
IPC: H03K3/356
Filed: 1977-03-29
Granted: 1980-11-11
Abstract: DYNAMIC SENSE-REFRESH  DETECTOR AMPLIFIER          Abstract of the Disclosure A dynamic sense-refresh detector amplifier consists essentially of a cross coupled MOS transistor pair and two sets of load-refresh circuits which each include a capacitor and three MOS transistors.  The load-refresh circuits eliminate the negative effect of threshold voltage losses on noise margin by allowing the memory cells from which information is read out and sensed to be refreshed to full "1" and "0" levels.  The dynamic operation of the amplifier allows for relatively low power dissipation.
Patent CA-1060781-A (CA)
Inventor: SCOTT LYLE B
IPC: E21B33/076
Filed: 1977-04-26
Granted: 1979-08-21
Abstract: Abstract of the Disclosure A method and apparatus for multiple stage cementing of well casing in subsea wells.  Also a subsea stage cementer, plug stack assembly.  The combination with a subsea stage cementer plug stack assembly of a packing and shipping crate therefor.  A trip-plug for operating a stage cementing collar to open the ports thereof.  A dart adapted to enter the bore of a hollow plug to block the flow of liquid through the bore.
Patent CA-1076562-A (CA)
Inventor: SUAMI TETSUO
IPC: A61P31/04
Filed: 1977-05-05
Granted: 1980-04-29
Abstract: ABSTRACT OF THE DISCLOSURE            This invention relates to a dideoxyneamine useful as an antimicrobial agent and a process for preparing the same.          More particularly, this invention relates to 5,6-didexoyneamine represented by the formula (I):            (I)   and a process for preparing 5,6-dideoxyneamine which comprises hydrogenating a compound represented by the formula (II):                          (II) wherein R1 represents a protective group for an amino group and R2 represents a protective group for a hydroxyl group, and then removing the protective groups for the amino and hydroxyl groups.
Patent CA-1071400-A (CA)
Inventor: SIMON GUENTER
IPC: F27D1/00
Filed: 1977-05-05
Granted: 1980-02-12
Abstract: Abstract of the Disclosure A brick lining for a dish-shaped furnace is disclosed.  The bed bricks are disposed in groups of parallel rows.  The rows of adjacent groups extend horizontally at right angles to one another.  The outermost bed bricks of each row are faced by abutment bricks.  In said rows the outermost bed bricks terminate in a sloping abutment having the same angle of inclination in the case of each row.
Patent CA-1091562-A (CA)
Inventor: THILLY WILLIAM G
IPC: C12Q1/02
Filed: 1977-05-10
Granted: 1980-12-16
Abstract: ASSAY FOR MUTAGENESIS IN DIPLOID HUMAN LYMPHOBLASTS           ABSTRACT OF THE DISCLOSURE           An assay is disclosed for determining mutagenic damage caused by the administration of a known or suspected mutagen to diploid human lymphoblastoid cell lines.  After administration of or exposure to a mutagenic agent, the lymphoblasts are incubated for a  sufficient number of genera-tions to allow full expression of phenotypic resistance to 6-thioguanine or other purines which serve as substrates for hypoxanthine guanine phosphoribosyl transferase (HGPRT).          A surprising discovery is the remarkably long length of time required for such phenotypic expression.  After the pheno-typic lag has passed, the mutant fraction can be determined to complete the assay.  A nontoxic, active, sterile micro-somal drug-metabolizing system compatible with mammalian cell bioassays is also disclosed which can be used in the assay to determine metabolite-caused mutagenesis.  These bioassay systems can be used by genetic toxicologists to determine the potential genetic hazards to human beings for a variety of suspected or known mutagens, including newly developed chemicals.
Patent CA-1074980-A (CA)
Inventor: STAENDEKE HORST
IPC: C01B25/00
Filed: 1977-06-01
Granted: 1980-04-08
Abstract: STABILIZED RED PHOSPHORUS AND PROCESS FOR MAKING IT       ABSTRACT OF THE DISCLOSURE The invention provides stabilized pulverulent red phosphorus. It comprises a homogeneous blend of red phos-phorus particles with a size of at most about 2 mm and a metal compound of the second or third group of the Periodic System as an oxidation stabilizer, wherein the metal compound is the neutral aluminum, magnesium, calcium or zinc salt of orthophosphoric acid, the metal compound being present in the homogeneous blend in a proportion of about 0.5 to 5 weight %.
Patent CA-1094486-A (CA)
Inventor: SZE MORGAN C
IPC: C10B55/00
Filed: 1977-06-30
Granted: 1981-01-27
Abstract: PROCESS FOR THE PRODUCTION OF        PETROLEUM COKE          Abstract of the Disclosure A high crystalline coke can be prepared by heat-soaking a petroleum feedstock in the presence of added dissolved sulfur, heating to effect controlled thermal cracking thereof, separat-ing non-crystalline substances as pitch, recovering a heavy cokable residue from the pitch free feed, and subjecting the residue to delayed coking.
Patent CA-1058488-A (CA)
Inventor: BAKOWSKI THOMAS G
IPC: A01G23/085
Filed: 1977-08-15
Granted: 1979-07-17
Abstract: TITLE   :  CLAMP ASSEMBLY                      INVENTOR:  THOMAS G. BAKOWSKI     ABSTRACT OF THE DISCLOSURE     A processor clamp for a tree harvester.  The tree engaging surface of a movable arm of the clamp is made up of two elements, a convex cam portion and a concave portion, to insure that all trees within the diameter range of the harvester will be clamped along a line either perpendicular to a downwardly angled, fixed tree engaging surface or tending to force the tree upward along the surface.  The fixed tree engaging surface is adapted to penetrate a tree clamped thereon, but permits the tree to roll off into a bunk when the movable arm is released.          The clamp assembly is easily removable from and attachable to the harvester to selectively use the harvester as a single tree machine or a multiple tree machine.
Patent CA-1082485-A (CA)
Inventor: OWEN THEODORE R
IPC: G01J3/28
Filed: 1977-09-20
Granted: 1980-07-29
Abstract: SPECTROPHOTOMETER WITH    PHOTODIODE ARRAY                   ABSTRACT      In a spectrophotometer, light that has passed through, or been reflected from, a sample is carried by a fiber-optic bundle.  The output end of the fiberoptic bundle is bonded to one side of a wedge-shaped linear variable interference filter.  The other side of the filter is bonded to an array of photodiodes.  Because each photo-diode receives light that has passed through a different portion of the filter, each photodiode will respond to light of a different wavelength.
Patent CA-1083696-A (CA)
Inventor: LANGENBACH-BELZ MANFRED
IPC: H04Q3/52
Filed: 1977-11-18
Granted: 1980-08-12
Abstract: TIME DIVISION SWITCHING NETWORK     ABSTRACT OF THE DISCLOSURE          A time division network using time slot inter-changers for interfacing between groups of terminal circuits and a time division highway and for interfacing between dif-ferent time division highways.  All interchangers are of uni-form construction and each performs a conversion from one number of channels at one end to a greater number of channels at the other end.  When highways of the same num-ber of channels are to be interconnected, two interchangers are arrayed between the highways in series with the one end of the respective interchangers coupled together.
Patent CA-1090820-A (CA)
Inventor: DRABEK JOZEF
IPC: A01N47/34
Filed: 1978-01-10
Granted: 1980-12-02
Abstract: Abatract of the Disclosure Carbimidocarbonylphenylformamidlnes of the formula   whereln each of R1 to R6 represents hydrogen, halogen, C1-4alkyl,  C1-C4alkoxy,  trifluoromethyl or cyano, a process for their production and their use in pest control.
Patent CA-1103642-A (CA)
Inventor: FALCON-STEWARD HUGH R
IPC: B02C23/06
Filed: 1978-01-12
Granted: 1981-06-23
Abstract: "Improvements in or relating to the comminution of materials".                 ABSTRACT OF THE DISCLOSURE     A method of comminuting a solid material comprising calcium carbonate to obtain a product containing at least 60% by weight of particles smaller than 2 microns equivalent spherical diameter comprises forming an aqueous suspension of the solid material which has a solids content in the range of from 5% to 50% by weight of dry solids and contains a dispersing agent, comminuting the solid material in the suspension by agitating the suspension in admixture with a particulate grinding medium, separating from the suspension thereby obtained an aqueous suspension containing comminuted solid material at least 60% by weight of which is smaller than 2 microns equivalent spherical diameter, flocculating the comminuted solid material by means of an electrolyte having a multivalent cation, and dewatering the aqueous suspension containing the comminuted and flocculated solid material.
Patent CA-1097218-A (CA)
Inventor: MCALEER WILLIAM J
IPC: A61K39/12
Filed: 1978-01-17
Granted: 1981-03-10
Abstract: HEPATITIS B SURFACE ANTIGEN            ABSTRACT OF THE DISCLOSURE         Biological fluid containing hepatitis B surface antigen is concentrated using ammonium sulfate, and sub-jected to an isopycnic banding followed by a rate zonal handing.
Patent CA-1048733-A (CA)
Inventor: LAST ANTHONY J
IPC: C02F1/32
Filed: 1978-01-30
Granted: 1979-02-20
Abstract: OZONE/ULTRAVIOLET WATER PURIFIER               ABSTRACT OF THE DISCLOSURE         There is provided an apparatus for purifying liquid such as water, in which an ultraviolet light source irradiates air passing through a first chamber surrounding the source, and then irradiates the liquid passing through the second chamber surrounding the first chamber.  The air from the first chamber is ozonated by the U.V. light, and this air is bubbled into the water in the second chamber to maximize the purifi-cation through simultaneous ultraviolet and ozone exposure.
Patent CA-1091171-A (CA)
Inventor: STEIN KLAUS
IPC: F16D43/202
Filed: 1978-05-03
Granted: 1980-12-09
Abstract: ABSTRACT OF THE DISCLOSURE     A safety clutch for the drive of floor cleaning machines comprises at least one first dog and at least one second dog which are in engagement with one another and oppose each other and the input and output for transmitting torque. One of the dogs is arranged axially resilient so that it upon exceeding a predetermined torque is capable of being brought from the engagement into the disengagement position and vice versa by an axial force thereby re-sulting.
Patent CA-1116420-A (CA)
Inventor: DE JONG FRANCISCUS
IPC: F17C3/02
Filed: 1978-09-12
Granted: 1982-01-19
Abstract: A B S T R A C T    A container for liquefied gas, comprising an outer shell consisting of a concrete bottom wall and a concrete side wall, earth material lying against the outer side of the concrete side wall, polyurethane foam arranged along the inner side of the concrete side wall, load-bearing heat insulating material arranged along the inner side of the concrete bottom wall, an inner tank positioned inside the concrete outer shell in such a way that the bottom wall of the inner tank is supported by the load-bearing heat insulating material, a relatively large annular space between the polyurethane foam on the concrete side wall and the side wall of the inner tank, a heat insulated roof sealing the inside of the inner tank and of the outer shell from the environment, and a communication between the vapour space of the inner tank and the annular space (Figure 1).
Patent CA-1075133-A (CA)
Inventor: GARDEN LORNE J
IPC: B65G17/00
Filed: 1978-09-12
Granted: 1980-04-08
Abstract: INFEED AND OUTFEED APPARATUS FOR WOODWORKING MACHINES                                    Abstract Infeed and outfeed apparatus for feeding boards to and receiving boards from a woodworking machine such as a chipper or saw each include an endless roller chain draped over a pair of sprockets affixed to spaced, parallel shafts.  Links on the roller chain carry small nibs that extend above a straight line path defined by the outer portion of the links. The nibs engage a board received by the infeed or outfeed apparatus and prevent the board from laterally deviating from the path defined by the chain links. Each of the shafts also carries idler rollers mounted for rotation on the shafts on each side of the chain sprockets. The distance of the periphery of rollers from the shaft axis is substantially the same as that of the outer surface of the links so that the nibs extend slightly above the periphery of the rollers. The rollers support the board and prevent it from rotating about its longitudinal axis.
Patent CA-1109069-A (CA)
Inventor: BLOOM STANLEY M
IPC: C07D309/12
Filed: 1978-09-22
Granted: 1981-09-15
Abstract: ABSTRACT OF THE DISCLOSURE            This invention relates to certain 3,3-di(4'-OP-carbocyclic aryl)-2,3-dihydrobenz[d]isothiazole-1,1-dioxides (and-2,3-dihydronaphtho[1,8-de]-1,2-thiazine-1,1-dioxides) and to the preparation thereof by reacting (a) at least 2 equivalents of (i) a 4'-OP-carbocyclic aryllithium compound wherein P is a protecting group compatible with organometal-lic reagents or (ii) a 4'-OP-carbocyclic arylMgE compound wherein P is a protecting group compatible with organometallic reagents and E is chloro, bromo or iodo and (b) 1 equivalent of a compound selected from a 3-chlorobenz[d]isothiazole-1, 1-dioxide and a 3-chloronaphtho[1,8-de]-1,2-thiazine-1,1-dioxide to give the corresponding 3,3-di(4'-OP-carbocyclic aryl)-2,3-dihydrobenz[d]isothiazole-1,1-dioxide or the corresponding 3,3-di(4'-OP-carbocyclic aryl)-2,3-dihydranaph-tho[1,8-de]-1,2-thiazine-1,1-dioxide, which compounds are useful in the synthesis of phenol and 1-naphthol sulfam(na)-phthaleins employed, for example, as photographic optical filter agents and filter agent precursors.
Patent CA-1097691-A (CA)
Inventor: SEIDEL WILLIAM C
IPC: C07F5/02
Filed: 1978-10-31
Granted: 1981-03-17
Abstract: ABSTRACT OF THE DISCLOSURE           Separating triarylboranes, e.g., triphenyl-borane from diaryl substituted boranes, e.g., diphenyl boronic acid by precipitation wherein the triaryl borans is present in a basic solution as the adduct while avoiding coprecipitation of the boranes by neutralizing the solution to a pH not less than the pH defined by the equation pH = pKn + log (X) and maintaining the ionic strength of the solution so that it is at least about 1 molar upon completion of the neutralization.
Patent CA-1103599-A (CA)
Inventor: BEGNAUD EDWARD M
IPC: B65D19/06
Filed: 1979-01-31
Granted: 1981-06-23
Abstract: CONTAINER              ABSTRACT OF THE INVENTION A container for the storing and shipping of a flowable material and more particularly baled rubber wherein the container has an inner corrugated paperboard liner supported on two sides by separate rigid frame members, each frame member having interconnected cross braces.  An outer shell made of corrugated paperboard encompasses the bottom and respective sides of the liner and frame members.  The shell has straps internally thereof encompassing the container to cooperate with the rigid side frame members to provide support for the container. Such container may be covered with a plastic cover or a flat corrugated sheet of material.  Alterna-tively, a cap or lid may be made to encompass a portion of the upper end of the outer shell to enclose all material within the container.  The container is attached to a pallet to form an integral unit.