baber/WOPTO huggingface dataset:
Patent CA-1167009-A (CA)
Inventor: LITCHFIELD PETER A
IPC: E06C7/12
Filed: 1983-09-27
Granted: 1984-05-08
Abstract: SAFETY DEVICE AND HARNESS FOR USE IN SAME         ABSTRACT OF THE DISCLOSURE A safety device is disclosed comprising a harness made of flexible sheet, preferably of a strong canvas sheet provided with suitable fasteners and straps for securing the body of an injured person to the flexible base.  In one embodiment, the base can be suspended on a pulley-and-rope mechanism secured to the top of an associated ladder.  The invention is not limited to the combination including a ladder as the harness can be used with virtually any known suitable lifting device.  The flexible harness can be guided along the associated ladder by a rigid U-shaped piece which is secured to the rear of the flexible base of the harness, the guide member being the only rigid portion of the entire harness.  The harness and the rope-and-pulley system can be neatly tucked within an envelope near the top of the ladder whereby the contour of the ladder is generally unobstructed and the ladder can be used for purposes other than rescue at times at which there is no emergency, with the rescue harness being ready for a rescue application if necessary.  The advance in the art is in the ease of folding the harness into a small space e.g. within a countour of a ladder, while retaining same in operative association with the respective ladder, also securing, by strategically located straps, safe securement of an injured person to the flexible canvas base.
Patent CA-1203860-A (CA)
Inventor: DWORSKY LAWRENCE N
IPC: H03H9/17
Filed: 1983-10-17
Granted: 1986-04-29
Abstract: ABSTRACT    A trapped energy piezoelectric resonator for oscillator and multiple resonator applications has a piezoelectric sub-strate with electrodes disposed on each of its major surfaces.          These electrodes are further comprised of a plurality of electrically interconnected and acoustically coupled sub-electrodes.  The resonant frequency of these resonators may be controlled by varying the separation and, therefore, the acoustic coupling between the sub-electrodes.  This resonator may be used in the feedback loop of an oscillator circuit as the frequency determining element.  It may also be used to provide a resonator on a substrate carrying resonators of significantly different frequency.
Patent CA-1206850-A (CA)
Inventor: KNASTER MARK
IPC: G01N27/26
Filed: 1983-10-21
Granted: 1986-07-02
Abstract: ABSTRACT OF THE DISCLOSURE      An electrochemical sensor system to control the surface char-acteristics or coating quality of an electrically conducting sur-face treated with a chemical treatment solution.  The sensor system operates by measuring the electrical characteristics of the elec-trically conducting surface.  The system can be used as a quality control test and as a method for controlling the composition of the chemical treatment solution.
Patent CA-1202999-A (CA)
Inventor: STONE THOMAS R
IPC: B62D33/067
Filed: 1983-11-04
Granted: 1986-04-08
Abstract: SUSPENSION FOR A TRUCK TILT CAB            Abstract of the Disclosure A tilt-cab truck with the cab independently suspended on the main frame.  A power device for tilting is connected to the cab and the frame at pivots spaced away from the main cab pivot.  On each side of the truck a front suspension bell crank is pivoted to the cab by a main pivot and has an arm extending substantially horizontally back to a pivotal connected to the main frame, with a crank arm extending down from the rear and bearing on one end of a horizontal front air spring that is secured to the main frame at its other end.  A leveling valve assembly for maintaining cab height relative to the frame is connected to the front air springs and to a source of air pressure.  An anti-roll structure is rigidly connected at each end to the bell crank and extends down below it and then laterally across to the other side of the truck.  A pair of lower latch assemblies are each secured to the main frame near the rear of the cab, and a pair of upper latch assemblies are each releasably secured to a lower latch assembly.  A pair of horizontal rear links are each pivotally connected at a forward end to the cab and at a rear end to an upper latch assembly, and a pair of rear air springs are each mounted on an upper latch assembly with an upper end bearing against the cab.  A leveling valve assembly for each rear air spring is connected to the source of air pressure, for maintaining the cab height relative to the frame.  A pair of front damper-snubbers, each adjacent to the main pivot, are operatively interposed between the cab and the main frame, and a pair of rear damper-snubbers, each adjacent to the rear end of one rear link, are interposed between the cab and the upper latch assembly, each damper-snubber has hydraulic cushioning for preventing bottoming out at each end of its stroke.
Patent CA-1241900-A (CA)
Inventor: BARES RICHARD
IPC: B27N1/00
Filed: 1983-11-18
Granted: 1988-09-13
Abstract: ABSTRACT OF THE DISCLOSURE:                The present invention pertains to a composite material from parts of a plant origin, for example, from wooden elements, veneers, chips, sawdust, bark, corn cobs, stalks and straw, containing lignocellulose materials with the content of polysaccharides, lignin, tannins, essential oils, which parts are bound together in the said composite material.  The invention consists in application of an activation agent, for example, sulfuric acid, on the parts of starting material, which causes transformation of the polymeric compound of parts to an active monomer.  An ex-cess of activation agent is neutralized, if it is desired, by addition of a neutralization agent, for example, powder-ed urea.  The activated parts are then put together and compressed under heating, to cause crosslinking of the activated monomer to a polymeric compound of similar char-acter as is the original polymeric compound and thus bind the parts together.  The activation effect can be increased by addition of a catalyst, for example, potassium permanga-nate.  The binding effect of the binder generated from the lignocellulose material may be increased by addition of furylalcohol, furylaldehyde, furylacetone, phenols, or their precondensates or thermoplastics.
Patent CA-1225956-A (CA)
Inventor: SIH CHARLES J
IPC: C12P7/42
Filed: 1983-11-29
Granted: 1987-08-25
Abstract: ABSTRACT     A process for preparing L-carnitine which comprises exposing .gamma.-substituted acetoacetic acid esters or amides to the fermentative enzymatic action of a microorganism which elaborates L- .beta. -hydroxyacyl CoA dehydrogenase [EC 1.1.1.35]  , recovering the resulting, optically active, corresponding  .gamma.-substituted- .beta. -hydroxybutyric acid deriva-tive and converting said derivative to L-carnitine. An improvement in the process is also disclosed which com-prises reacting a 4-chloro-3(R)-hydroxybutyrate  with sodium iodide or bromide to produce the corresponding 4-iodo- or 4-bromo-3(R)-hydroxybutyrate, converting the 4-iodo or 4-bromo-3(R)-hydroxybutyrate to the trimethyl-amino-3(R)-hydroxybutyrate salt, then converting the trimethylamino-3(R)-hydroxybutyrate salt into L-carnitine inner salt. Novel chemical intermediates prepared in the processes are also disclosed.
Patent CA-1208533-A (CA)
Inventor: BUTA JOHN
IPC: B23D35/00
Filed: 1983-12-05
Granted: 1986-07-29
Abstract: AUTOMATIC KNIFE ALIGNMENT         FOR SHEAR Abstract of the Disclosure A device is provided to automatically adjust the horizontal space between movable and fixed knives of a metal cutting shear.  Bellcranks are mounted on opposite sides of the shear frame with first arms in contact with the outboard vertical sides of the movable knife holder and with second arms positioned beneath the opposite outboard ends of the shear hold down clamp.  Followers on the hold down clamp make contact with the second arms as the hold down clamp is lowered into clamping engagement with the top surface of a metal strip or plate to be sheared.  The followers shift the second arms downwardly causing the first arms to shift the movable knife horizontally toward the fixed knife.  The respective lengths of the first and second arms are selected to cause the horizontal shift of the movable knife to be a predetermined fraction of the vertical move-ment of the second arms to provide the correct clearance between knives for the determined thickness of the strip about to be sheared.
Patent CA-1220848-A (CA)
Inventor: FOX JOHN R
IPC: H04N7/173
Filed: 1984-02-03
Granted: 1987-04-21
Abstract: Abstract of the Disclosure An interactive wideband cable network has a central service position which can supply a plurality of simultaneous wideband services. At least one optical fibre is connected to the central service position and has at least one passive optical tapping point. At least two wideband switches are connected to the tapped optical fibre, and between the central service position and each wideband switch at least one additional optical fibre associated only with that switch.
Patent CA-1213394-A (CA)
Inventor: WATSON STUART L JR
IPC: C08G18/02
Filed: 1984-02-03
Granted: 1986-10-28
Abstract: METHOD OF MAKING MIXED ALIPHATIC/AROMATIC            POLYCARBODIIMIDES              ABSTRACT OF THE INVENTION Mixed aliphatic/aromatic polycarbodiimides can be prepared by first heating aliphatic mono- and diisocyanates with a phospholene oxide catalyst and then feeding the aromatic mono and/or diisocyanates in an inert solvent to the reaction mixture.
Patent CA-1200905-A (CA)
Inventor: LIPTAY-WAGNER NICHOLAS
IPC: G01B11/14
Filed: 1984-02-03
Granted: 1986-02-18
Abstract: ABSTRACT OF THE DISCLOSURE A method and apparatus are provided for analyzing a light pattern produced on a photodetector array wherein a signal from the array is filtered by a low pass filter and then differentiated by at least one differentiator to obtain the first or second derivative of a point or points in the pattern.  A zero crossing detector detects the point of zero crossing in the differentiated signal and a timer times this point to obtain the position of the point(s) in the pattern.  This technique can be used with back-lit illumination of edge images as well as with diffraction fringes and triangulation spots, among other uses.  Further techniques using photodetector arrays are also disclosed.
Patent CA-1228905-A (CA)
Inventor: CLARK MICHAEL G
IPC: G06F3/041
Filed: 1984-02-08
Granted: 1987-11-03
Abstract: ABSTRACT            INTERACTIVE DISPLAY SYSTEM            A system whereby a user can interact directly with a display by touching the screen of the display with a probe.  The screen is covered by individual resistive tracts each of which is energised by a different source signal.  Position co-ordinates of probe contact with the screen are determined simultaneously using probe circuitry for signal identification and for signal level measurement.  Display address signals may be used for energisation, eliminating the need for a separate source.  The tracks may be formed on the surface of the screen rather than on an overlay, and to conserve the number of source connections required, may be of folded configuration.
Patent CA-1212558-A (CA)
Inventor: HART FREDERICK M
IPC: F16H1/22
Filed: 1984-02-14
Granted: 1986-10-14
Abstract: MULTI-ANGLE PINION AND GEAR                    POWER TRANSMISSION      A power transmission is disclosed, including a single input pinion or worm and multiple gears and output shafts associated therewith such that two of the latter shafts are at right angles to one another, or any other angle other than parallel.  In an alternate embodiment, two worms are formed on one input shaft, with one or more gears meshing with each worm, producing multiple outputs at two different speeds.
Patent CA-1224481-A (CA)
Inventor: PARTON RICHARD L
IPC: G03C1/06
Filed: 1984-02-21
Granted: 1987-07-21
Abstract: ADSORBABLE ARYLHYDRAZIDES AND APPLICATIONS     THEREOF TO SILVER HALIDE PHOTOGRAPHY     Abstract of the Disclosure The use of oxythioamido substituted aryl-hydrazides in producing images in silver halide photographic elements is disclosed.  The oxythio-amido substituted arylhydrazide can be incorporated in photographic silver halide emulsions.  The oxythioamido substituent is capable of promoting adsorption of the arylhydrazide to silver halide grain surfaces. In negative working surface latent image forming emulsions the oxythloamido substituted arylhydrazides permit higher speeds to be achieved. In direct positive internal latent image forming emulsions increased nucleation activity can be achieved.
Patent CA-1220942-A (CA)
Inventor: RAO JAGDISH J
IPC: C01B17/69
Filed: 1984-02-22
Granted: 1987-04-28
Abstract: ABSTRACT      A method of preparing mixtures of dilute acid of varying final specific gravities utilizes microprocessor controlled mixing in two in-line stages.  Process recycled or production reject acid or water is initially mixed with concentrated acid and directed to an intermediate heat exchanger for removing the exothermic heat generated during mixing.  The specific gravity of the mixture exiting from the heat exchanger is continuously measured and fed to a microprocessor which calculates the deviation between the measured specific gravity and a preselected set point specific gravity which is greater than the desired final specific gravity.  The calculated deviation is used to generate a control signal which, in turn, is applied to adjust the flow of concentrated acid until the measured specific gravity corresponds to the set point specific gravity.  In the second stage, the set point specific gravity acid/water mixture is mixed with water and the specific gravity of this second stage mixture is continuously measured and also fed to the microprocessor which calculates the deviation between the measured specific gravity and the final desired specific gravity.          A second control signal based on the second calculated deviation is generated to adjust the flow of water to provide a second stage mixture of the desired final specific gravity.  The method is particularly adaptable to providing sulfuric acid mixtures of various specific gravities typically utilized in the manufacture of lead-acid batteries.
Patent CA-1246106-A (CA)
Inventor: JOHNSON DAVID E
IPC: B65G51/02
Filed: 1984-02-28
Granted: 1988-12-06
Abstract: APPARATUS AND METHOD FOR FORMING        STACKS OF NESTED CONTAINERS EACH          HAVING A PREDETERMINED COUNT OF CONTAINERS                            ABSTRACT          An apparatus and a method for forming stacks of nested containers, such as cups and the like, and more particularly, an apparatus and method for isolating or separating stacks each consisting of a requisite count of isolated nested containers from a continuous supply of the containers.
Patent CA-1217976-A (CA)
Inventor: RUESSEMEYER HANS
IPC: B65G53/52
Filed: 1984-03-22
Granted: 1987-02-17
Abstract: ABSTRACT OF THE DISCLOSURE           A plurality of receiving stations is automatically and pneumatically charged by a pulverized or granular material fed at a relatively low rate through a main conveying pipe into a plurality of series connected intermediate containers.  Each intermediate container is connected with a substantially horizontally directed branch conduit which is provided with downwardly directed discharge or sink pipes opening into a preliminary storage hopper of a corresponding receiving station. Each branch conduit is connected via unidirectional valves or via throttles with an auxiliary pneumatic line which when the end of the sink pipe is open, fluidizes the material in the branch conduit and simultaneously discharges it into the preliminary hopper.  As soon as the level of charge in the hopper reaches the open end of the sink pipe, the fluidization is interrupted and the loose material from the intermediate container plugs the branch conduit.  Only after the level of discharge in the hopper drops below the open ends of the sink pipes, the fluidization and discharge is restarted.
Patent CA-1254999-A (CA)
Inventor: REITSMA JOGCHUM
IPC: H04N1/417
Filed: 1984-04-11
Granted: 1989-05-30
Abstract: ABSTRACT     In a system for the line-wise compression of binary data of a picture field, a first series of data bits of a current picture line and a second series of data bits of the directly preceding picture line are shifted together into a compression translator.  To this end, in a memory operation each time a word of a line memory is read in order to obtain the data of the preceding line; at the same time the same word is written in order to buffer the data of the current line.  At the output of the compression translator the serial compression bits are regrouped in order to form words.  Exclusively groups of significant compression bits are thus formed.  For the decompression a code word is read and a series of data bits is emulated and encoded as if it were.  When the code word thus found corresponds to the code word read, a next code word is read and possibly a change of value for the data bits to be subsequently emulated is introduced.
Patent CA-1236036-A (CA)
Inventor: SUTTON BENJAMIN C S
IPC: C07K14/195
Filed: 1984-04-19
Granted: 1988-05-03
Abstract: ABSTRACT OF THE DISCLOSURE         Root hair curling is a first step in the infection of soybeans by Rhizobium which leads to nodulation and symbiotic nitrogen fixation.  DNA encoding this function has been isolated from two strains R. japonicum and cloned into broad host range vectors.  The two 8.7 kb EcoRi fragments found to contain the root-hair curling genes can be transferred to various bacterial genera to confer root-hair curling phenotypes.  Pseudomonas putida served as a most suitable host for such expression of root-hair curling gene.  Transfer of multicopy plasmid containing these genes enhances the root-hair curling phenotype, and such transfers may enhance competitiveness of the recipients.  The location of the root-hair curling gene followed by its expression in a suitable host may allow identification of the product encoded by such genes.
Patent CA-1209221-A (CA)
Title: Multi-pin contact bar and method of manufacturing and assembling same
Inventor: HEHL KARL
IPC: H01R4/24
Filed: 1984-05-04
Granted: 1986-08-05
Abstract: A B S T R A C T      A multi-pin contact bar connectable to a multi-conductor ribbon cable, the contact bar holding two rows of sheet metal contact posts with dual contact blades which are manufactured as a continuous sheet metal segment strip with doubled seg-ment halves forming the contact posts, the latter remaining attached to a carrier strip until broken away, following si-multaneous insertion of a set of contact posts into a contact post housing.  The contact blades of the two rows of contact posts are offset from their contact pins in opposite direc-tions, for connection to alternate conductor strands, clamp-ing members with beds of conductor positioning grooves and guide slits holding the strands for snap-action attachment to the housing and simultaneous electrical connection of the con-tact posts to the conductor strands.
Patent CA-1214358-A (CA)
Inventor: WHITEMAN MARVIN E
IPC: F04B9/117
Filed: 1984-05-09
Granted: 1986-11-25
Abstract: DRILLING FLUID PUMP ABSTRACT OF THE DISCLOSURE            A pump is provided for circulating drilling fluid and the like into a well during a well drilling process.   The pump comprises a pair of double-ended piston assemblies hydraulically reciprocated in opposite directions by a common hydraulic drive arrangement, wherein each piston assembly has a relatively large piston at one end and a relatively small piston at an opposite end.   The various pistons reciprocate within appropriately sized cylinders each having a working end with a one-way intake valve through which drilling fluid is drawn from a supply tank and a one-way discharge valve through which drilling fluid is discharged to the well.  These intake and discharge valves, or other flow control valves in an alternative form of the invention, can be set appropriately for pumping drilling fluid at a relatively high pressure and low flow rate using only the smaller pistons or for pumping drilling fluid at a comparatively lower pressure and higher flow rate using only the larger pistons, wherein drilling fluid is continuously circulated by the unused pistons through the unused cylinders to maintain fluid flow thereby preventing settling of particulate entrained in the drilling fluid within unused cylinders.  Still further, the various valves can be set for pumping drilling fluid at a further reduced pressure and still higher flow rate using the large and small pistons in combination.   In other alternative embodiments of the invention, the discharge pressure of the drilling fluid can be intensi-fied by appropriate routing of a portion of the drilling fluid in a manner to assist driving either the large or small pistons.
Patent CA-1222380-A (CA)
Inventor: BJOERNBERG ARNE
IPC: C22B1/10
Filed: 1984-05-16
Granted: 1987-06-02
Abstract: ABSTRACT   The invention relates to a method for preparing a sulphidic concentrate which is intended for further processing to copper and/or precious metals and which contains high percentages of arsenic and/or antimony, and possibly also bismuth in quantities likely to disturb subsequent processing stages, by partially roasting the concentrate in a fluidized bed, so as to eliminate substantially all the arsenic present and a major part of the antimony and/or bismuth. According to the invention, the concentrate and gas are supplied to a fluidized-bed reactor, and are there heated to a minimum temperature above the splitting or decompo-sition temperatures of the complex minerals containing arsenic and/or antimony and bismuth present in the concentrate. The oxygen potential in the reactor is regulated, so as to prevent the formation of non-volatile compounds of said impurities. The residence time of the concentrate in the reactor is controlled in a manner to ensure a given minimum elimination of the impurities. The gas and solids are withdrawn from the reactor and passed to a separating means, in which substantially impurity-free solids can be separated from the gas. The aforesaid minimum temperature and said regulated oxygen potential are main-tained while the solids are in contact with said gas, and at least a part of theseparated solids is returned to the reactor, for controlling the residence time,and an end product is removed from the fluidized bed and/or the separating means. The method is suitably carried out in one stage in a fluidized-bed reactor having a circulatory fluidized bed, although in certain cases the method can be carried out in two stages, in mutually separate reactors.
Patent CA-1204872-A (CA)
Inventor: CHAMBERLAIN SAVVAS G
IPC: H04N1/409
Filed: 1984-05-18
Granted: 1986-05-20
Abstract: ABSTRACT     The invention discloses apparatus for receiving a plurality of inputs and subjecting the inputs to a Laplacian operator function.  The apparatus comprises CCD shift register means for receiving the inputs and introducing positive and negative weights to respective ones of the inputs, and combines the inputs to produce the Laplacian operator function.
Patent CA-1194332-A (CA)
Inventor: CRESPY SERGE
IPC: G10K5/00
Filed: 1984-06-26
Granted: 1985-10-01
Abstract: ABSTRACT               An article comprises a housing having a lighter fluid accommodating upper cavity and a whistle sound-producing lower cavity.  The lighter fluid accommodating upper cavity may accommodate lighter fluid within a conventional disposable cigarette lighter in which case the article serves as a cigarette lighter holder.  Alternately, the article may be a unitary whistle-lighter in which case the upper cavity serves as a reservoir for lighter fluid directly contacting the sides of the upper cavity.