baber/WOPTO huggingface dataset:
Patent CA-1111658-A (CA)
Inventor: PETERSSON STIG A
IPC: C22B15/06
Filed: 1978-07-28
Granted: 1981-11-03
Abstract: A B S T R A C T            A method of producing blister copper from raw material contain-ing antimony. The invention is characterized in that a slag is separated from copper matte formed by smelting the raw material. Thereafter the matte is brought into contact, under violent agitation preferably in a rotary converter of the Kaldo type, with a substantially inert gas in a quantity sufficient to re-duce by volatilization the antimony content of the copper matte and, possibly, also the content of other impurities such as bismuth, arsenic and zinc to a level acceptable when perfor-ming the subsequent converting process, so as to obtain the desired blister copper product, preferably a maximum content of antimony, 0.04 percent by weight and of bismuth 0.03 per-cent by weight, The rotary converter is suitably operated with a rotation corresponding to a peripheral speed of approxima-tely 0,5 - 7 m/s, preferably 2-5 m/s.
Patent CA-1087078-A (CA)
Inventor: AIMAR MICHELE
IPC: F16B37/14
Filed: 1978-09-11
Granted: 1980-10-07
Abstract: ABSTRACT           A bush of plastic material is provided which is intended to be embedded in the panel of semi-foamed or foamed synthetic resin and which comprise a cup-shaped portion having a bottom provided with a hole for anchoring the head of a panel fastener and a cover portion adapted to engage by snap action a mouth of said cup-shaped portion so as to provide a seal and integrally con-nected to the cup-shaped portion through a web acting as a hinge.
Patent CA-1143034-A (CA)
Inventor: LANDA BENZION
IPC: B41J23/34
Filed: 1978-09-19
Granted: 1983-03-15
Abstract: Title of the Invention LOW PROFILE KEYBOARD ACTUATOR                Abstract of the Disclosure A low profile keyboard actuator for a typewriter is which L-shaped levers are pivotally mounted on a transverse shaft mounted immediately in front of the typewriter.  The levers have generally horizontal arms of various lengths, the ends of which contact the keys of the various rows of the key-board.  The levers have depending arms of uniform length and are resiliently biased to depress the keys.  A common oper-ating bar bearing against the depending arms cyclically permits the levers to depress the keys and then restores the levers to the original position where no key is depressed: however, depression of all but a selected key is inhibited by a plural-ity of vertically superposed, transversely shiftable, binary-coded slides having teeth which bear against all depending arms except that one corresponding to the selected key.  An electric keyboard mounted above the horizontal arms provides signals which shift the slides and actuate the common operating bar to permit depression of a corresponding key of the typewriter.          These signals are alternatively provided from a data source for automatic operation of the typewriter.
Patent CA-1087764-A (CA)
Inventor: CORBETT AUBREY E
IPC: A47C27/10
Filed: 1978-10-05
Granted: 1980-10-14
Abstract: ABSTRACT A ripple bed has an upper and a lower inflatable layer.  The upper layer has separate air passages which are independently inflatable and deflatable to provide the rippling effect.  The lower layer is separately inflatable to provide support over any area of the upper layer which is deflated.
Patent CA-1092595-A (CA)
Inventor: EMMERICH KENNETH C
IPC: E21B10/38
Filed: 1978-10-11
Granted: 1980-12-30
Abstract: ABSTRACT OF THE DISCLOSURE         An improved roof drill bit for use in mining operations in which a carbide insert is diametrically located in a cylindrical body and held on axial prongs in diametrically opposed quadrants of the body by a brazed connection; diverging axial holes for coolant are positioned in said prongs to open at the trailing side of the cutting edges of the carbide insert to flood the edges with coolant liquid and flush cuttings into the other quadrants.  The coolant passages also pass near the brazed face of the insert to cool the body in this area and minimize softening of the braze.   i.
Patent CA-1121835-A (CA)
Inventor: STROBEL FELIX
IPC: G01G7/00
Filed: 1978-10-31
Granted: 1982-04-13
Abstract: ABSTRACT OF THE DISCLOSURE      A control circuit which feeds a control signal to a comparator to determine the duration of pulses of constant current to the compensating means for an electric balance having electromagnetic coil means, is modified to include an additional entirely loop, to minimise digitisation error arising from the need to cut off each current pulse just after the comparator produces a cut-off signal.  The fluctuation of the display when the scale operates at high resolution in relation to the frequency of timing marking used for counting the lengths of current pulses and producing a digital indication is reduced by including an integrator arranged to be controlled by the synchroniser and to supply an error voltage combined with the control signal voltage at the input to the comparator.        The mechanical inertia of the load-receiver is excluded sufficiently so that digitisation error can be cancelled out relatively rapidly.
Patent CA-1116256-A (CA)
Inventor: NUDING ERICH
IPC: H01P1/02
Filed: 1978-10-31
Granted: 1982-01-12
Abstract: ABSTRACT OF THE DISCLOSURE      A junction for connecting together two waveguides whose major transverse axes are inclined to one another, composed of elements connecting the frontal faces of the waveguides in such a manner that their major axes are adjustably inclined to one another, flanges covering the nonoverlapping frontal faces of the two waveguides, and reactance components disposed at the point of discontinuity produced by the angular offset between the waveguides for compensating for such discontinuity over a broad frequency band.
Patent CA-1198291-A (CA)
Inventor: PERDUE BENNIE G
IPC: A01G3/06
Filed: 1978-11-24
Granted: 1985-12-24
Abstract: ABSTRACT OF THE DISCLOSURE A spool upon which one or more lengths of filament are wound is provided and housed within a cylindrical cover having one or more generally radial openings formed through one wall portion thereof and the free ends of the filaments are threaded through the openings and extend outwardly there-from for flail-type cutting of vegetation thereby when the spool and housing are rotated as a single unit at high speed.  The spool is controlably rotatable relative to the housing whereby the spool may be rotated in discrete controlable increments in a direction to unwind the filaments therefrom so as to renew the extended end portions of the filaments projecting outwardly of the housing by said predetermined increments as the extended ends of the filaments incur breakage.  Latching structure is operatively associated with the spool and housing for releasably retaining the spool in adjusted angularly displaced position relative to the housing and the latching structure is remotely operable from a mounting structure relative to which the spool and housing may be rotated at high speed and during high speed rotation of the spool and housing relative to the mounting structure.  In this manner, when breakage of the extended end portion of a filament occurs, a filament may be further extended during operation of the cutter so as to renew the extended end portion of the filament to the desired length.
Patent CA-1106714-A (CA)
Inventor: BABISH JOHN A
IPC: F02B77/04
Filed: 1979-01-03
Granted: 1981-08-11
Abstract: ENGINE COOLANT SYSTEM FLUSH ATTACHMENT FOR COOLANT HOSE          Abstract of the Disclosure A flush attachment for a coolant hose accommodates gas or air induction to mix with a pressurized stream of cleaning liquid for efficient scavenging of rust or scale from machinery cooling systems.  The construction of the attachment also protects against over pressurization and possible bursting.  The device is adapted for connection to the cooling duct of the machine cooling system and includes means coupled with the duct to supply a controlled pressurized flow mixture of cleaning liquid and gas bubbles.          The means includes a generally tubular body having a high pressure liquid inlet at one end thereof and a low pressure flow mixture outlet at the opposite end.  The means further includes a gas passage associated with the body to supply a sidestream of gas into the body to mix with the liquid flowing to the outlet and an excess pressure release passage is associated with the body to release liquid pressure above a predetermined amount.
Patent CA-1106704-A (CA)
Title: Method and apparatus for adjusting stroke length of a  ram for presses
Inventor: KOJIMA SHIGENORI
IPC: B30B15/14
Filed: 1979-03-30
Granted: 1981-08-11
Abstract: Abstract of the Disclosure The present invention provides a method for adjusting the stroke length of a ram for presses comprising a ram, a first tool held by the ram and a second tool held by a fixed member provided in opposition to the ram in which method the stroke limit of the ram with respect to the fixed member is set or measured as an original measuring point on or from a point where the first and second tools completely engage each other at a predetermined pressure.
Patent CA-1109160-A (CA)
Inventor: WOODWARD DONALD R
IPC: G06F11/27
Filed: 1979-04-23
Granted: 1981-09-15
Abstract: VERIFYING CIRCUIT OPERATION                       ABSTRACT          A polynomial based apparatus, such as an error correcting apparatus, is checked by repeatedly supplying test bits to the apparatus.  On even cycles, the modulo two sum of the signal contents should be zero, while on odd cycles it should be equal to the pattern used for test purposes.
Patent CA-1111354-A (CA)
Inventor: PRESTON GARY W
IPC: F16D65/095
Filed: 1979-05-28
Granted: 1981-10-27
Abstract: hydraulic ANTI-RATTLE SPRING FOR DISC BRAKE             ABSTRACT OF THE DISCLOSURE         A disc brake includes a pair of friction elements which are movable by a hydraulic actuator and a caliper into engagement with the disc to effectuate braking.  A torque member movably supports the callper The hydraulic actuator includes a piston cup and an anti-rattle spring is disposed within the piston cup and releasably engaged with one of the pair of friction elements to eliminate noise generated between the one friction element and the caliper, the torque member, or the piston cup.          In particular, the anti rattle spring comprises a split ring having a polygonal circumference.  The split ring is contracted radially for insertion into the piston cup and sides of the polygonal surface are ex-panded radially to receive the one friction element.  A pair of tabs on the split ring releasably engages the one friction element to retain the same in engagement with the piston cup.
Patent CA-1135322-A (CA)
Inventor: ASHIZAKI SHIGEYA
IPC: H01J29/50
Filed: 1979-07-24
Granted: 1982-11-09
Abstract: TITLE OF THE INVENTION:          In-Line Electron Gun ABSTRACT OF THE DISCLOSURE:         In an in-line electron gun, three apertures, closer to an accelerating electrode, of a focusing electrode, which forms three main electron lenses, are defined by bridging with a partition electrode means two neck portions of a peanut-shaped aperture consisting of a center or inner aperture and two outer apertures which partially overlap the center or inner aperture and are contiguous therewith, thus forming a   continuous aperture in the form of a peanut pod having three seeds.
Patent CA-1160460-A (CA)
Inventor: DESNOES ANDRE
IPC: B07B7/00
Filed: 1979-08-10
Granted: 1984-01-17
Abstract: ABSTRACT OF THE DISCLOSURE A process of upgrading garnieritic ores, oxidised nickel-iferous ores of lateritic origin which includes subjecting the ore to controlled attrition and classifying particles so formed according to their size, those having a dimension smaller than a predetermined value being recovered.  The present specifi-cation discloses, among other things, a process for upgrading garnieritic ores at least 0.5% in nickel comprising the steps of:  (a) subjecting a raw garnieritic ore to a preliminary grinding or crushing to produce an ore in which about 80% of the ore particles have a size between about 5,000 and 100 microns; (b) subjecting the resultant ore to a controlled attrition whereby the ratio d90/d10 increases by a factor of at least 2.0; and (c) recovering the particles of a size below 10 microns whereby a nickel recovery of at least 70 is accomplished.
Patent CA-1140203-A (CA)
Inventor: OTTOS JAMES G
IPC: H01J29/02
Filed: 1979-08-20
Granted: 1983-01-25
Abstract: RCA 71,751 Abstract An electrode of the electron gun assembly has two accurately positioned alignment apertures therein, a line connecting the centers of the alignment apertures being transverse to the central longitudinal axis of the gun assembly.  The alignment method includes holding the electron gun assembly relative to the cathode-ray tube envelope and directing a collimated light beam toward the alignment apertures.  Next, the position of the electron gun assembly is rotationally stepped about its central longitudinal axis while the light source is pulsed in coordination with the steps of the electron gun assembly. During the rotation, the number of light pulses passing through the alignment apertures are counted up.  Thereafter, the stepping direction of the electron gun assembly is reversed and the number of light pulses passing through the alignment apertures are counted down.  The reverse rotation of the electron gun assembly is stopped when the number of counted down light pulses are half of the maximum number of light pulses counted up.
Patent CA-1144615-A (CA)
Inventor: PATE HAROLD T
IPC: H02G7/04
Filed: 1979-09-17
Granted: 1983-04-12
Abstract: Abstract of the Disclosure A clamping device comprising an elongated wedge body having a bifurcated end, and a second end opposite the bifurcated end. The wedge body is of substantially rectangular transverse cross-sectional configuration, and is relatively thick at the second end, tapering to a relatively thin dimension at the bifurcated end.  She wedge body has first and second sides extending between its bifurcated and second ends.  Each of these sides carries a plu-rality of longitudinally spaced, contiguous teeth or serrations over a major portion of its length.  The bifurcation in one end of the wedge body defines a pair of spaced, substantially parallel legs, which legs have continuations of the teeth or serrations extended along one side thereof, and are relatively smooth on the opposite side thereof.  In a useful combination, the clamping device retains an electrical conductor in place at the location where it enters a knock-out window in a synthetic resin electri-cal box. The clamping device is wedged between the conductor and the portion of the box which defines the window so that the serrations carried on opposite sides of the wedge body engage, respectively, the synthetic resin of the box and the insulating jacket of the conductor to firmly clamp the conductor in position.
Patent CA-1119903-A (CA)
Inventor: SAVIT JOSEPH
IPC: B65D27/32
Filed: 1979-09-26
Granted: 1982-03-16
Abstract: ABSTRACT OF THE DISCLOSURE A process is provided for the opening of envelopes made of cellulosic paper in which there is applied to at least one envelope edge as the sole reac-tant with the cellulose wherein a non-noxious organic acid having at least one pK value at room temperature between about 1.5 and about 5, followed by the applica-tion of heat and mild mechanical action to the envelope edge.
Patent CA-1109237-A (CA)
Inventor: ANGAROLA BARRY R
IPC: B65D63/06
Filed: 1979-10-24
Granted: 1981-09-22
Abstract: ABSTRACT OF THE DISCLOSURE A flat strap segment is formed into a loop and ten-sioned about an article with the strap having outer and inner overlapping portions retained in a fixed position solely by a crimped seal.  The outer overlapping portion of the strap has a distal end segment protruding from the crimped seal and terminating in a terminal portion.  A bend is provided in the distal end segment inwardly of the terminal portion and spaced axially from the adjacent end of the crimped seal for directing the terminal portion toward a flat underlying region of the inner overlapping portion of the strap to minimize exposure of the sharp cut edge of the strap.
Patent CA-1135922-A (CA)
Inventor: MILLER PHILIP L
IPC: B29C65/00
Filed: 1979-10-30
Granted: 1982-11-23
Abstract: TITLE            METHOD AND APPARATUS FOR MAKING           BACKOUT STOP FOR CAULKER CARTRIDGE          ABSTRACT    The inventive method and apparatus make a backout stop for a caulker cartridge having a cylindrical barrel of resin material.  The backout stop is formed at the rear end of the barrel as an inwardly oriented hook that has a generally triangular cross-sectional shape.  The two exposed sides of the hook are an inclined surface sloping radially inward so a plunger can slide over the backout stop into the rear of the barrel and an abrupt edge extending radially inward to prevent the plunger from backing out of the barrel. The apparatus includes a tool with a socket that fits over the rear end of the barrel and has a resin-forming edge protruding obliquely into the socket to extend along the inclined surface of the hook when the tool is seated on the rear end of the barrel. The barrel and tool are supported on a common axis, are moved into axial engagement, and are rotated relative to each other while pressed together so that the edge plows along the inclined surface and forms the resin material into the hook.  The tool can use several edges and preferably rotates through a short enough arc to form the stop as several separated segments around the rear end of the barrel.
Patent CA-1104532-A (CA)
Inventor: MUELLER JOHN J
IPC: B65D83/00
Filed: 1979-10-31
Granted: 1981-07-07
Abstract: DISPENSING APPARATUS                      Abstract Dispensing apparatus for a flexible container, including a closure for the container and an expansible bladder associated with the closure and adapted to fit within the container to expand and displace the dispensed contents.  The closure has two openings, one at which it is attached to the container and the other forming an outlet for dispensing.  A conduit extends from the bladder into the closure and communicates to the exterior of the closure and container through one of the two openings.  The outlet opening is constructed to allow the contents to flow only in a direction from the container during use and a check valve allows flow through the conduit only into the bladder.
Patent CA-1143948-A (CA)
Inventor: FITOUSSI RICHARD
IPC: C01B25/238
Filed: 1979-11-19
Granted: 1983-04-05
Abstract: URANIUM RECOVERY PROCESS ABSTRACT OF THE DISCLOSURE Process for the recovery of the uranium present in a phosphoric acid solution by bringing the said sol-ution into contact with an organic solvent suitable for extracting the uranium, wherein the said organic solvent comprises a system of extractants constituted by an acid organophosphorus compound having at least one sulphur atom and by a neutral phosphine oxide of formula.                             in which R1, R2 and R3 are identical or different alkyl, alkoxyalkyl or aryl radicals.
Patent CA-1147108-A (CA)
Inventor: THOMPSON JOHN ARTHUR
IPC: C10G73/02
Filed: 1979-12-06
Granted: 1983-05-31
Abstract: ABSTRACT OF THE DISCLOSURE Hydrophilic, semi-permeable , regenerated cellulose membranes are converted to membranes useful for separating organic liquids by a process comprising soaking the membranes in water to remove the glycol they normally contain and then sequentially permeating the water-containing membrane with a series of solvents of decreasing polarity, under pressure, to dis-place the water in the membrane with the first solvent and then sequentially displace each solvent in the membrane with the next, successive solvent of decreasing polarity, beginning with a low molecular weight alcohol or ketone which is completely miscible in water and ending with a solvent exhibiting bulk liguid-liquid miscibility with both the higher polarity solvent immediatelyproceeding it and the organic material desired to be selectively permeated through the membrane and wherein there is complete bulk liquid-liquid misib-ility between any two adjacent solvents In the sequential series. These so-converted membranes are useful for selectively fractionating organic solvent mixtures, (see apparatus figure 1), for selectively removing dewaxing solvent from a dewaxed oil in solvent dewaxing processes (see process scheme figure 3) for removing aromatics from D naphtha stream, for recovering solvent from slack wax/foots oils separation processes, (see process scheme figure 4) etc. The selective separation is accomplished by contacting the organic liquid solution with one side of the modified regenerated membrane, under pressure, resulting in the selective permeation of one component through the membrane yielding n permeate richer in said selected component and a retentate leaner in said selected component.
Patent CA-1174787-A (CA)
Inventor: CHUNG DANIEL A
IPC: C08G18/65
Filed: 1980-01-04
Granted: 1984-09-18
Abstract: Abstract The invention relates to polyurethanes prepared by reacting at least one selected aromatic diamine with  an inocyanate-terminated prepolymer   The particular diamines are selected from 3,5-diaminobenzotrifluoride and bis-(2-aminophenyl)sulfide.
Patent CA-1104404-A (CA)
Inventor: WHALEN BERNARD F
IPC: A01B21/04
Filed: 1980-03-06
Granted: 1981-07-07
Abstract: MULTIPLE ROTARY HOE AND SUPPORT ARMS          A rotary hoe having rows of hoe wheels with one row in advance of the other row mounted on independent operating arms supporting the hoe wheels for individual operative ground contact, all of the operating arms being mounted on a pivot shaft which is mounted on a frame by laterally spaced pivot bearings and springs on the pivot shaft individual to each operating arm to exert pressure to urge each hoe wheel into contact with the ground but which yields to upward movement, a stop on each operating arm which engages the frame to dispose all of the wheels of each row in the same operative position but adapted to function independently without translating movement to any other wheel, each operating arm having a lower hub mounting a wheel and an upper hub mounting the arm on the pivot shaft and wherein the extent of the lower hub is such that the hoe wheel is mounted within the planes of the upper hub which acts as a spacer between the operating arms.
Patent CA-1134355-A (CA)
Inventor: THELWALL LESLIE A W
IPC: C07H13/00
Filed: 1980-04-02
Granted: 1982-10-26
Abstract: ABSTRACT OF THE DISCLOSURE       "Sugar Acetals, their Preparation and Use"       Novel sugar acetals such as those of formula                           (I) where Ra is hydrocarbyl; Rb and Rc are hydrogen or hydrocarbyl;          R3', R4' and R6' are hydrogen or R4' and R3' or R6' is   are made from 1,4-linked reducing disaccharides by a new ex-change acetalation process in which the solvent is omitted.         The sugar acetals have free hydroxy groups on the ring which groups can be converted to other substituents, e.g. chloro-deoxy or fatty acid acyl.  After deprotection the correspond-ing derivative of the initial disaccharide is obtained.  The acetals are useful intermediates in the synthesis of sugars.