baber/WOPTO huggingface dataset:
Patent CA-1189048-A (CA)
Inventor: DENKOWSKI WALTER J
IPC: F16K31/04
Filed: 1983-06-17
Granted: 1985-06-18
Abstract: Abstract of the Disclosure A valve operator has a de-clutch mechanism for automatically shifting the clutch out of handwheel drive and into electric motor drive upon actuation of the electric motor.  The motor drive sleeve 23 has an annular step 25 which has a flat 26.  The clutch 50 is biased by spring 55 toward the motor drive sleeve 23 but is prevented from moving in the direction of the motor drive sleeve by the clutch fork 40 which has extending therefrom two latch arms 71,72 one of which 71 is longer than the other 72.  The longer latch arm 71 abuts against the step 25 on the motor drive sleeve.  When the electric motor M is energized, the motor drive sleeve rotates and the flat 26 comes into alignment first with the longer latch arm 71 and later with the shorter latch arm 72, thereby releasing in two steps the clutch fork 40 and allowing the clutch 50 to shift out of handwheel drive and into electric motor drive.
Patent CA-1181225-A (CA)
Inventor: FREDETTE MAURICE C J
IPC: C01B11/02
Filed: 1983-06-30
Granted: 1985-01-22
Abstract: Abstract of the Disclosure Chlorine   dioxide   is   formed   in   commercial quantities at high efficiency from a solution of acid sodium chlorate at high sulphuric acid normality to which methanol is fed.  The reaction medium is at its boiling point under a subatmospheric pressure.  Total acid normality values in the range of below 9 normal down  to  about  7  normal  may  be  used  while  high efficiency   of   chlorine   dioxide   production   is maintained.
Patent CA-1210504-A (CA)
Inventor: MARIS JOHN M
IPC: G06G7/70
Filed: 1983-07-05
Granted: 1986-08-26
Abstract: ABSTRACT     The approaching stall of an aircraft wing is predicted using an inherent characteristic of the airflow as the stall is approached.  The airspeed over the wing is sensed at a predetermined location spaced above the top surface of the wing, input signals are produced representative of airspeed fluctuations caused by air turbulence, input signals are used to produce a signal representative of the ratio of the airspeed fluctuations to the average airspeed, and the ratio signal produces a signal indicating imminent stalling.
Patent CA-1211321-A (CA)
Inventor: WHITE GEORGE
IPC: B32B27/10
Filed: 1983-07-19
Granted: 1986-09-16
Abstract: ABSTRACT OF THE DISCLOSURE        The present invention provides a process for coating a substrate web e.g. paper, nylon film, polyethylene film, with polyethylene in which process a polyethylene having a melt index of between about 30 and about 100 dg/min, is extruded, through a slotted die,  in the form of a sheet having two edges onto the substrate web which is being transported past the slotted die, to form a coated web. Subsequently the coated web is passed through a nip roll assembly comprising a chill roll and another roll which form a throat therebetween.  The slotted die has edge guides at the extremities thereof which are kept at a temperature higher than the melting temperature of the polyethylene. The edge guides are adapted to direct the edges of the extruded sheet into the throat of the nip roll assembly.
Patent CA-1203547-A (CA)
Title: Method for the preparation of difluoromethoxyaromatic   compounds
Inventor: SIDDENS JACK K
IPC: C07C205/37
Filed: 1983-08-22
Granted: 1986-04-22
Abstract: A METHOD FOR THE PREPARATION OF DIFLUORO-METHOXYAROMATIC COMPOUNDS     ABSTRACT OF THE DISCLOSURE A method for the preparation of certain difluoro-methoxyaromatic compounds useful as intermediates in the preparation of pyrethroid pesticides. The method comprises alkylating a p-substituted phenol with excess chlorodiflu-oromethane at atmospheric or superatmospheric pressures in the presence of a base, water, and an inert water miscible organic solvent or solvent mixtures.
Patent CA-1200508-A (CA)
Inventor: POLLOCK ELISABETH M
IPC: A61L27/00
Filed: 1983-08-23
Granted: 1986-02-11
Abstract: ABSTRACT            Natural tissues fixed with a tanning solution such as glutaraldehyde and intended for implantation in humans, e.g., porcine heart valve prosthetic devices, are treated with a solution of a water soluble phosphate ester such as sodium dodecyl hydrogen phosphate to inhibit mineraliza-tion, particularly calcification, of the tissue after implantation.
Patent CA-1214153-A (CA)
Inventor: GEBHARD GEORG
IPC: B01D53/50
Filed: 1983-08-26
Granted: 1986-11-18
Abstract: ABSTRACT OF THE DISCLOSURE             An absorbent for the dry removal of sulfur dioxide and other noxious and toxic components from a combustion flue gas which consists essentially of at least one finely divided alkaline-earth compound and an additive selected from the group which consists of at least one carboxylic acid or an alkali metal, alkaline-earth metal or ammonium salt thereof.
Patent CA-1227892-A (CA)
Inventor: MUELLER DIETRICH
IPC: C10L5/40
Filed: 1983-11-25
Granted: 1987-10-06
Abstract: ABSTRACT OF THE DISCLOSURE          The invention relates to a process, which is characterized by mixing sewage sludge with comminuted, dried autumn foliage or the solvent extraction residue thereof.  It also relates to the use of the deformable and optionally dried material obtained as a fuel briquette, and the use of the ash obtained after burning the fuel briquette as a fertilizer component.
Patent CA-1211685-A (CA)
Inventor: HARTMANN JAMES R
IPC: B27B19/09
Filed: 1984-01-30
Granted: 1986-09-23
Abstract: ADJUSTABLE ORBITAL RECIPROCATING SAW                 Abstract of the Disclosure The jigsaw has a drive gear carrying an eccentrically mounted drive pin forming part of a Scotch-yoke mechanism for reciprocating the plunger and bladeholder along a generally longitudinal axis. The plunger is held by a pair of spaced swivel bearings; the lower bearing mounted to the housing while the upper bearing is mounted for oscillatory movement in a bearing carriage. Drive means synchronized to the reciprocal motion of the plunger urge oscillatory movement of the bearing carriage and upper bearing thereby causing orbital motion of the blade. A knob on the top of the housing adjustably limits or inhibits the oscillatory movement of the bearing carriage thereby permitting ready and convenient adjustment of the orbital blade motion.
Patent CA-1200354-A (CA)
Inventor: BARTLEY DONALD R
IPC: B29C33/10
Filed: 1984-02-22
Granted: 1986-02-11
Abstract: ABSTRACT A tire mold having air venting passages or holes is provided with plastic inserts or plugs for the vent holes along the cavity side of the mold. The inserts are composed of a plastic material having a heat distortion temperature of no less than 275°F at 66 psi in accordance with ASTM D648 and a coefficient of thermal expansion less than 8x10-5in/in/°C.
Patent CA-1245492-A (CA)
Inventor: STEINER CARL
IPC: G02B23/10
Filed: 1984-04-09
Granted: 1988-11-29
Abstract: ABSTRACT OF THE DISCLOSURE    A system for superimposing information on the optical path of a telescope is described.  A slide or film strip containing a map sector and angle information is carried in a holder out of the optical path.  An arm containing optics can he swung into and out of the optical path to transmit the image contained on the slide or film strip to the optical path as desired.     Rotation of the image can be achieved in one embodiment by means of a thumb-wheel connected to the slide holder whereby the slide itself can be rotated. In another embodiment rotation of an optical prism assembly forming part of the optics is used to achieve image rotation.  Another thumb-wheel is used for that.
Patent CA-1218178-A (CA)
Inventor: WEFER JOHN M
IPC: C08L67/00
Filed: 1984-05-18
Granted: 1987-02-17
Abstract: ABSTRACT      Blend of polybutylene terephthalate resin and a graft copoly-mer of styrene and acrylonitrile on olefin copolymer rubber (e.g., EPDM) has high impact strength, provided the blend contains at least 25% of the graft.
Patent CA-1245161-A (CA)
Inventor: BOGATY HERMAN
IPC: A61K8/81
Filed: 1984-08-02
Granted: 1988-11-22
Abstract: ABSTRACT OF DISCLOSURE        A process and composition for coloring human hair on the head with pigments that employ a dispersion of pigment or pigments in an aqueous alcoholic liquid medium that contains a cationic polymer that is compatible with the aqueous alcoholic medium.
Patent CA-1220059-A (CA)
Inventor: ISAKOV EDMUND
IPC: E21B10/58
Filed: 1984-08-20
Granted: 1987-04-07
Abstract: TITLE OF THE INVENTION  A TWO-PRONG ROTARY BIT, ESPECIALLY FOR USE WITH ROOF              DRILLS, AND INSERT THEREFOR              ABSTRACT OF THE DISCLOSURE    Disclosed according to the present invention is a two-prong rotary drill bit, especially for use with roof drills.  The two-prong bit has a supporting body having an axis of rotation.  The two-prong bit has a pair of inserts, one insert on each of the prongs.  Each of the inserts has a cutting portion facing in the direction of rotation and a mounting portion.  When viewed in a direction parallel to the axis of rotation, each of the inserts will have a cross sectional configuration which is generally wedge-shaped.  Also disclosed are wedge shaped inserts especially for use with roof drill bits.
Patent CA-1247797-A (CA)
Inventor: MALCOLM-BROWN TESSA
IPC: C08K3/34
Filed: 1984-10-09
Granted: 1988-12-28
Abstract: ABSTRACT                   Intumescent Composition An  intumescent  rubber  or  elastomeric  composition comprises a rubber or elastomer containing:        (a)  one or more organic polyhydroxy compounds  as carbonific;        (b) one or more organic polyamido compounds in free and/or combined forms as spumific;        (c)  an  ammonium  phosphate  as  activator  for  the carbonific; and (d) an amino resin as binder; and, in addition to or instead of components (a) and (d), (e) sodium silicate as an intumsecent material, components  (a) to (d) if present being intermixed one with another.
Patent CA-1249401-A (CA)
Inventor: PIGNEUL RAYMOND
IPC: A61F13/472
Filed: 1984-11-07
Granted: 1989-01-31
Abstract: L'invention concerne le domaine de l'hygiène et a pour objet un articleà jeter absorbant les liquides comportant un matelas absorbant (2) de forme rectangulaire recouvert sur sa face interne d'une feuille (9) perméable aux liquides telle qu'une feuille de non tissé et sur sa face externe d'une feuille (8) imperméable aux liquides telle qu'une feuille de polyéthylène, ces deux feuilles étant soudées entre elles le long de leurs bords, ledit matelas (2) étant formé de trois couches (14a, 14b, 14c) superposées d'une nappe de mousse de cellulose, la couche externe étant continue tandis que les autres couches (14b, 14c) sont constituées de deux demi-couches juxtaposées et disposées symétriquement par rapport à l'axe longitudinal du matelas. Le matelas présente en outre des extensions latérales monocouches (16). Application à la confection de changes à jeter, serviettes périodiques, pansements.
Patent CA-1226371-A (CA)
Inventor: GOODMAN WILLIAM R
IPC: G06F13/42
Filed: 1984-11-08
Granted: 1987-09-01
Abstract: S P E C I F I C A T I O N                  COMMUNICATIONS METHOD                         ABSTRACT         The present disclosure relates to a communications method for communicating data over a data channel that com-prises two unidirectional communication lines.  A protocol which is a set of predetermined control characters is used by the communications method and the protocol is  used for transferring data between communicating devices.  The communi-cations method combines acknowledgements which are control characters of the protocol transmitted in between messages, piggy-backing which is the combining of control characters of the protocol and data messages, and hold-offs with long time outs which cause the devices to enter a standby idle mode waiting for a responsive control character of the protocol.         The communications system and method combines these features so as to permit improved efficient flow control of data information between the communicating devices.
Patent CA-1254922-A (CA)
Inventor: BUCKLEY JOHN E
IPC: E05D15/44
Filed: 1984-11-22
Granted: 1989-05-30
Abstract: Abstract Friction supporting stays for windows A friction stay comprises a track 10 which can be attached to a window frame.  The track 10 has, at its upper end a nose portion 14 of plastic with a curved inner surface adapted to receive the nose portion 28 of a bar 24 which has holes 27 for receiving screws by which the window sash may be attached to bar 24.  The sash will normally be supported by a pair of these stays, one on each side of the window.    Bar 24 is pivotally attached to the track 10, by a link 16 joined to the bar 24 at rivet 25 and to track at rivet 17.  The bar 24 is also attached to a slider 15, engaged in track 10, by a link 21 pivoted on rivets 22,23.      A brace 18 extends from link 16 to slider 15 and is attached by rivets 19,20.  Optionally an extra link 26 may be included.      To provide additional strength, in accordance with this invention, a link 31 is provided, pivoted to link 16 at 32 and to a second slider 35 at 34.
Patent CA-1272051-A (CA)
Inventor: WADDELL PETER
IPC: G02B7/18
Filed: 1985-02-07
Granted: 1990-07-31
Abstract: ABSTRACT             OPTICAL MIRROR ASSEMBLY    A variable focal length mirror assembly incorporates a rigid circular structure defining a hollow chamber with a circular aperture     .   A flexible elastomer having a reflective coating      is disposed across aperture      with coating     outwardly facing. The elastomer         is peripherally gripped and clamped by a circularly-extending clamp means         located radially outwardly of the structure     .   The clamp means are mounted for movement axially of the structure      in order to render flat that portion of the elastomer covering the aperture      in the absence of any applied elastomer deformation force.   Means   for applying elastomer deformation forces are provided.
Patent CA-1246625-A (CA)
Inventor: VANCELETTE STANLEY R
IPC: H01L21/683
Filed: 1985-02-13
Granted: 1988-12-13
Abstract: ABSTRACT    A placement mechanism for vertically displacing a micro-electronic component to place the component on a printed circuit board.  The mechanism has a spindle that is displaceable on a vertical axis and rotatable on the vertical axis to align the component leads with the lands of the circuit on the board.  The spindle carries a placement rod in communication with a vacuum source to enable the component to be retrieved and placed on the board.  The placement rod has a resilient interconnection with the spindle to allow for varying board heights and to buffer the impact of the placement of the component on the board.
Patent CA-1243711-A (CA)
Title: Releasable spear for retrieving tubular members from  a well bore
Inventor: MORRIS GEORGE H
IPC: E21B31/16
Filed: 1985-03-01
Granted: 1988-10-25
Abstract: RELEASABLE SPEAR FOR RETRIEVING TUBULAR        MEMBERS FROM A WELL BORE         ABSTRACT A releasable spear for retrieving tubular members from a well bore has a top member connected to a mandrel which in turn is connected to a lower member, the remote end of the member from the mandrel  being adapted to secure a cutter.  Rotatably and longitudinally slidably disposed about the mandrel is a sleeve having a tapered portion which is arranged to mate with and slidably cooperate with a corresponding taper on the inside diameter of a grapple carrier having grapples.  In a non-expanded position of the grapples the grapple carrier is located on wedges but upon rotation of the sleeve by a dog clutch  so the wedges locate within a longitudinal keyway of the grapple carrier and the grapple carrier slides downwardly over the keys thereby radially expanding the grapples.  By increasing the tension on the drilling string so the radially outward pressure of the grapples upon the internal surfaces of the tubular member to be machined is increased.  Whilst maintaining the drilling string in tension fluid is pumped through internal passages of the members and mandrel to radially extend the cutter and the spear may then be rotated to sever the tubular member whilst the drilling string is in tension.       In another embodiment, instead of grapples an external screw thread is provided on a sleeve to suit a thread on the well head to be cut.  In a further embodiment, again instead of using grapples a two part sleeve is provided with a cam and radially expandable pins which are driven outwardly by rotation of the cam to engage with the internal surface of a tubular member to be cut.
Patent CA-1238352-A (CA)
Inventor: FUKUI KUNIHIRO
IPC: F16L15/00
Filed: 1985-03-25
Granted: 1988-06-21
Abstract: OIL WELL PIPE JOINT          Abstract of the disclosure An oil well pipe joint comprising a metal-to-metal sealing portion without thread is disclosed.  A metal-plated or resin-coated layer exhibiting improved resistance to galling is provided on the outer peripheral surface of a thread-free lip portion which constitutes part of the metal-to-metal sealing portion on an externally-threaded member.  At the metal sealing portion, satisfactory sealing properties are maintained under severe corrosive conditions, enabling the joint to be connected and disconnected over 10 times, and usually over 25 times.
Patent CA-1228138-A (CA)
Inventor: HAN DOYOUNG
IPC: G05D23/20
Filed: 1985-04-11
Granted: 1987-10-13
Abstract: Title CONTROL AND METHOD FOR TEMPERING SUPPLY AIR         Inventors Abstract A microprocessor based control for tempering supply air in a multi-stage temperature conditioning system.  The temperature conditioning stages are normally controlled in response to a comfort temperature sensor to maintain the zone at a setpoint.  However, if a sensor in the supply airstream indicates that the temperature of the supply air is less than a predetermined minimum, the primary control algorithm is overridden and the temperature conditioning stages are controlled to increase the supply air temperature.  Tempering the supply air prevents personal discomfort due to excessively cold air being supplied to the zone.
Patent CA-1230584-A (CA)
Inventor: EDWARDS BRYANT
IPC: B65D71/50
Filed: 1985-04-12
Granted: 1987-12-22
Abstract: MULTI-PACKAGE AND PACKAGING DEVICE     Abstract A plastic band is provided for encircling and combining into a single package, two multi-package assemblies of cans.  The plastic band of the present invention encircles the outside of the array of cans comprising the combination of two multi-packages and further provides a central stablizing strap which provides firm resilient engagement with at least all of the corner cans of each individual multi-package.     .
Patent CA-1266036-A (CA)
Inventor: MARTIN ROGER
IPC: F16K5/20
Filed: 1985-05-15
Granted: 1990-02-20
Abstract: A ball valve has a movable upstream valve seat with a metal lip engageable with the valve ball under pressure generated by a bellows section or metal membrane connected between the movable valve seat and the housing. The force of fluid pressure against this moveable valve seat is relieved by operation of a bypass valve connecting opposite sides of this seat. The ball can also have a deformable metal lip.
Patent CA-1252069-A (CA)
Inventor: SMITH FRED P
IPC: B09B1/00
Filed: 1985-09-11
Granted: 1989-04-04
Abstract: ABSTRACT OF THE DISCLOSURE Apparatus for use in grabbing a refuse container such that the container can be emptied into a refuse collection truck.  The grabbing apparatus includes a pair of apposed articulated grabbing arms which have the capability of securely grabbing containers of substantially different sizes without crushing or otherwise damaging those containers.
Patent CA-1240046-A (CA)
Inventor: RAUCH SOL
IPC: G08B25/00
Filed: 1985-10-03
Granted: 1988-08-02
Abstract: Abstract of the Disclosure The invention relates to a status display system for aircraft which system receives signals from sensors/ transducers monitoring a plurality of parameters and sub-systems of the aircraft.  The system then displays text identifying faulty ones of the parameters or subsystems in a prioritized sequence.  With the system of the invention, only a single indicator is needed to identify a plurality of faults as compared to available systems wherein each parameter and subsystem is monitored by a separate device including a separate display.  Thus, the present invention is an improvement over the prior art in that:   (1)  it requires less cockpit space for displaying faults; and (2)  it presents faults in order of priority so that the pilot does not have to make decisions about the most important fault to attend to when, as in the prior art systems, faced with a plurality of fault indications on a plurality of fault indicators.
Patent CA-1250645-A (CA)
Title: Apparatus for measuring the position of a luminous  object
Inventor: SALES ANDRE
IPC: G01S3/78
Filed: 1985-10-21
Granted: 1989-02-28
Abstract: ABSTRACT OF THE DISCLOSURE     APPARATUS FOR MEASURING THE POSITION OF A LUMINOUS OBJECT     R.A.T.P. Régie Autonome des Transports Parisiens The invention relates to Apparatus for localising and locating a luminous object comprising an optical system and a sensor for the position of the image formed, the locating being performed first at high speed , then at low speed. The object of the invention is to achieve rapid localising with reduced risk of losing the object to be located. In accordance with the invention, the optical system comprises a wide-angle objective and a narrow angle objective, position sensors comprising two photocell devices for detecting the image position and  the localising is obtained by coarse adjustment using the wide-angle objective then fine adjustment using the narrow angle-objective. The invention is applicable to localising tiles which are coming unstuck from a vault.
Patent CA-1269445-A (CA)
Inventor: MICHALIK JOHN K
IPC: G06T1/00
Filed: 1985-10-25
Granted: 1990-05-22
Abstract: Abstract A circuit and method for converting signals from a photoelectric image sensor into digital signals containing information as to a characteristic of the sensor signals. The photoelectric image sensor provides output pulses having characteristic determined by the manner in which light is incident thereon and this, in turn, is determined by a light influencing medium in an optical path between a light source and the image sensor.  In particular, the peak amplitude of each signal from the sensor is determined amd then converted into a digital signal containing information as to the peak amplitude.  This is accomplished by detecting the rise of each sensor signal to a peak amplitude and then holding a signal level corresponding to the peak level of the sensor signal as the sensor signal falls in amplitude for a time at least equal to the time for acquiring or converting into the digital signal.  In particular, there is provided a peak detector circuit operatively connected to the photo-electric image sensor for detecting the peak amplitudes of signals obtained from the sensor and an analog to digital converter connected to the peak detector circuit for providing digital signals containing information as to peak amplitudes of the sensor signals.  The peak detector circuit comprises a portion responsive to the rise of each sensor signal to a peak amplitude and a portion for holding a signal level corresponding to the peak level of each sensor signal as the sensor signal falls in amplitude for a time at lease equal to the acquisition time or conversion time of the analog-to-digital converter.