baber/WOPTO huggingface dataset:
Patent CA-1193878-A (CA)
Inventor: GRENCI CARL A
IPC: G01M3/02
Filed: 1983-03-22
Granted: 1985-09-24
Abstract: ABSTRACT OF THE DISCLOSURE        A test head useful in the testing of compressed gas cylinders capable of withstanding high pressure. The test head includes a neck seal including a spud insertable into the neck of a compressed gas cylinder for permitting a high pressure seal to be made to the cylinder.  The present neck seal incorporates a permanent quick-connect sleeve for which mating male spud insert units can be designed for nearly any size cylinder neck. Changing the spud insert can be accomplished by hand, without removing the head from its use location. A dia-phragm support spring is installed between the moving spud stem assembly and the top plate of the head which biases the spud stem assembly, thus increasing diaphragm life and preventing increasing reassembly difficulty following spud changes. Studs and screws replace welds in holding the top, side and  bottom plates together which greatly alleviates the task of servicing inside the head when leaks eventually occur in the moving ele-ments. A heavy, long-lasting head boot is included which requires less servicing, simplifying field installation.
Patent CA-1206835-A (CA)
Inventor: DAGHE JOSEPH L
IPC: E03C1/10
Filed: 1983-03-29
Granted: 1986-07-02
Abstract: RELIEF VALVE ASSEMBLY FOR USE WITH BACKFLOW PREVENTERS     ABSTRACT OF THE DISCLOSURE          A relief valve assembly for use in backflow preventers having at least one check valve, the relief valve assembly being operable in response to changes in differential pressure across the check valve and in fluid connection downstream of the check valve for discharging liquid therefrom to atmosphere when a backflow condition occurs.  The at least one check valve prevents backflow from a service pipe to the supply pipe but when the at least one check valve is fouled, and a backflow condition occurs, the relief valve assembly operates to permit the discharge of the liquid from the service line and prevent contamination of the supply line.
Patent CA-1214865-A (CA)
Inventor: MCNAMARA ROBERT P
IPC: H04N7/10
Filed: 1983-04-29
Granted: 1986-12-02
Abstract: ABSTRACT A two way digital communication arrangement utilizes a CATV system to provide bidirectional data transport service between any two points within the CATV system. The headend receives an upstream message and selectively rebroadcasts such message on the downstream portion of the spectrum. System intelligence is thus distributed throughout the system as server and subscriber nodes can be located anywhere in the CATV network. In order to obtain access to the CATV communication resources, user equipment at each node must attach a frame verifier (FV) code to each respective message. The headend examines the FV and permits rebroadcast of messages only if the FV code indicates that the user is authorized.
Patent CA-1220179-A (CA)
Inventor: STYLIANOU ANDREAS S
IPC: B65D5/50
Filed: 1983-05-20
Granted: 1987-04-07
Abstract: ABSTRACT           There is provided a cassette support box having four wall panels to enclose a four-sided volume for receiving a tape cassette holder.  One end of the box is closed by structure which includes an end panel hinged to a first wall panel, a tuck flap hinged to the end panel and adapted to be tucked inside a second wall panel opposite the first wall panel, the tuck flap and the end panel being joined along a hinge line which contains a slot, the second wall panel having a linking tab hinged thereto, and an entry tab hinged to the linking tab.  The entry tab has a general width less than the length of the slot, but including a lateral protrusion which increases the width to greater than the length of the slot, thereby requiring a distorting force in order to insert the entry tab into the slot.  In this manner, removal of the entry tab from the slot is dis-couraged.  This design is intended to reduce theft.
Patent CA-1247443-A (CA)
Inventor: HEIART ROBERT B
IPC: H05K3/00
Filed: 1983-06-09
Granted: 1988-12-28
Abstract: TITLE REGISTERING AND EXPOSING SHEET SUBSTRATES USING PHOTOSENSITIVE LIQUID            ABSTRACT OF THE DISCLOSURE A process of imagewise exposure to actinic radiation of a photosensitive layer applied to a sheet substrate with registration of a photomask to the substrate is disclosed.  The process comprises the steps of:      (1)  advancing a substrate to a position in a device to undertake in either order or concurrently (a)  aligning the substrate and a photomask in a predetermined relationship; (b)  applying a photosensitive liquid to between the substrate and the photomask; (2)  contacting through the photosensitive liquid the substrate and the photomask such that during the contacting the substrate and the photomask remain in a fixed position relative to one another; (3)  exposing the photosensitive liquid to actinic radiation through the photomask; (4)  removing the photomask from the substrate whereby substantially no hardened material resulting from the photosensitive liquid remains on the photomask; and (5)  obtaining a substrate containing discrete portions of bonded hardened material resulting from the photosensitive liquid.
Patent CA-1214845-A (CA)
Inventor: MOORE ROBERT G JR
IPC: F02D41/14
Filed: 1983-07-15
Granted: 1986-12-02
Abstract: ABSTRACT OF THE DISCLOSURE           A fuel/air ratio control apparatus for a reciprocating engine used in light aircraft including a fuel metering apparatus (32) and a fuel/air ratio controller (40).  The controller (40) generates an electrical signal (Wf/Wa) indicative of a desired fuel/air ratio based upon the flight condition of the aircraft and the metering apparatus (32) meters fuel flow (Wf) according to the mass airflow ingested into the engine.  The desired fuel/air ratio is a best power ratio (Wf/Wa (2)) for takeoff and climb conditions and a best economy ratio (Wf/Wa (3)) for cruise conditions as derived from the exhaust gas temperature. These ratios are limited by a ratio (Wf/Wa (1)) based upon the maximum cylinder head temperature tolerable for a particular flight condition.
Patent CA-1202206-A (CA)
Inventor: BERUTO MARCO
IPC: G03C1/42
Filed: 1983-08-26
Granted: 1986-03-25
Abstract: Gelatin Silver Halide Photographic Elements For Tanning Development.                       Abstract Of Disclosure Silver halide photographic elements for tanning de-velopment including tanning developers, which can diffuse into the gelatin layer containing them, can be improved if they are associated with non-diffusing hydroquinones.  In the case where such tanning de-veloper is hydroquinone or a derivative thereof, said elements include such diffusing hydroquinone associated with a hydroquinone derivative non-diffusing in the gelatin layer containing it.  Such non-diffusing hydroquinones preferably are hydroquinones substituted with aliphatic chains containing a total of at least twelve carbon atoms and, more preferably, are dispersed in the layer dissolved in a high-boiling organic solvent.
Patent CA-1214941-A (CA)
Inventor: ROBERT EDGARDO J
IPC: F27B3/08
Filed: 1983-09-12
Granted: 1986-12-09
Abstract: METHOD FOR THE FABRICATION OF SPECIAL STEELS IN METALLURGICAL VESSELS      ABSTRACT    The device consists of a retractible tuyere which can be used with different types of steel melting furnaces, or any other metallurgical vessel. Said tuyere is introduced in the liquid steel bath to make the controlled refining of the same by means of gaseous oxygen injection with any other innert gas, generally argon.    The retractible tuyere consists of two concentric pipes. Through the annular gap between the pipes a cooling gas or liquid fluid is injected, which is generaly an hydrocarbon.    Through the center pipe a refining gas mixture is injected.    The system also consists of a cooled tuyere holding box and a fluid control and injection system.    The tuyere is generally introduced through an opening made in the side wall of the furnace, in a way that the tip of the same is located below the liquid steel level. Due to the retractible characteristic of the tuyere,; the same is introduced in the bath only during the time required by the process.     BACKGROUND OF THE INVENTION    Fabrication of high alloy steels, particularly stainles steel, in electric furnaces, has some difficulties in cases of high Cr and low C contents (less than 0.10% Carbon), due to high process temperatures required, and Cr loss in slag due to the high oxidation needed to reduce the carbon content.    As a result of the high temperatures in the furnace there is a high consump-tion of refractory. Both factors, refractory consumption and chromium losses makes this way of production costly and inefficient.    An alternate method is based in the AOD process. The AOD process is a metallurgical method that consists of a vessel with an opening on top of the same, and a set of tuyeres that are located in the side wall, below the liquid level, and usually extended radially in horizontal position.    The AOD converter is usually fed with hot metal by an electric furnace. The hot metal contains generally 0.9-1.7% carbon. A mixture of oxygen and argon having a ratio of about 3 parts of oxygen to 1 part of argon is blown through
Patent CA-1216778-A (CA)
Inventor: GREEN DAVID T
IPC: A61B17/12
Filed: 1983-09-28
Granted: 1987-01-20
Abstract: SURGICAL CLIP APPLYING APPARATUS        HAVING FIXED JAWS            Abstract of the Disclosure Surgical clip applying apparatus having a pair of laterally spaced fixed jaws with opposing clip forming surfaces which are inclined toward one another in the direction in which a clip is pushed into the jaws.  Tissue to be clipped is positioned between the jaws.  A clip is pushed into the jaws so that the free end of each arm of the clip contacts a respective one of the clip forming surfaces, and so that the clip forming surfaces cooperate to force the arms of the clip together on opposite sides of the tissue to produce hemostasis of the tissue.  Various means can be included in the apparatus for feeding a plurality of clips to the jaws one at a time in succession. The clips can be made of metal or of plastic.  Plastic clips can be either biologically absorbable or nonabsorbable.
Patent CA-1209683-A (CA)
Inventor: INGRAM JOHN D
IPC: G01V1/44
Filed: 1983-10-14
Granted: 1986-08-12
Abstract: ABSTRACT     Methods and apparatus are described for estimating shear wave slowness of formations traversed by a borehole from guided wave acoustic log data.  Acoustic energy is generated at a point in the borehole and received at at least four receiver stations spaced one from the other and from the generating point.  Full wave forms of the received signals are produced and windowed to identify guided wavelets.  Fourier transforms of the guided wavelets are obtained and from these determined the phase velocity and frequency of the guided wavelet.  Values of formation density, drilling fluid density, drilling fluid slowness and borehole diameter are measured and a value of Poissons ratio may be estimated.  A multi-dimensional matrix is established comprised of predetermined ranges of assumed values of frequency, Poissons ratio, drilling fluid slowness, drilling fluid density, formation density, phase velocity and borehole diameter.  The measured data is fitted to the multi-dimensional matrix to obtain an estimate of shear wave slowness at the point in the borehole, and the estimate is recorded as a function of depth.
Patent CA-1208740-A (CA)
Inventor: LANDIS WILLIAM R
IPC: F23N3/08
Filed: 1983-11-08
Granted: 1986-07-29
Abstract: ABSTRACT OF THE DISCLOSURE A purge time hold circuit is provided in a flame safeguard sequencer to in turn provide a safe start check of a burner control system.  If a flame is indi-cated during a prepurge period, the purge time hold means will reset to a zero status and the timer will hold until the signal clears itself.  If the flame signal does not clear itself within a preset time, a safety shut down will be commanded.
Patent CA-1207965-A (CA)
Inventor: HEHL KARL
IPC: B29C45/40
Filed: 1983-11-28
Granted: 1986-07-22
Abstract: A B S T R A C T     An ejection device in a the die closing unit of an injec-tion molding machine in which the ejector piston rod, reach-ing from behind through the movable die carrier and into an engagement cavity in the back plate of the movable die half, is automatically engaged with, or disengaged from, the ejec-tor plate, in the course of the movement of a die assembly into and out of the operating position, in conjunction with a mechanized die exchange procedure.  A connecting socket at the extremity of the piston rod cooperates with a connecting plug on the back side of the ejector plate.  A brief inter-ruption of the transfer movement, obtained by means of a stop-start mechanism responsive to the die assembly transfer move-ment, allows for the piston rod to be extended into, or re-tracted from, the engagement cavity.
Patent CA-1232185-A (CA)
Inventor: RHOADES JAMES J
IPC: B21D5/00
Filed: 1983-11-30
Granted: 1988-02-02
Abstract: PORTABLE SHEET BENDING BRAKE     Abstract of the Disclosure A sheet bending brake comprising a plurality of C-shaped frame members that support a first member.  The first member has a clamping surface.  A second member is hinged to the first member and has a bending surface.  A plurality of bars are pivoted to the frame members and support an anvil member that extends longitudinally of the first member.  A cam support shaft is rotatably mounted on the frame members and a plurality of eccentric cams are secured on the shaft.          Each bar is generally C-shaped and a cam is positioned be-tween the upper and lower flanges thereof.  A handle is secured to the shaft such that when the handle is operated, the eccentric cams are rotated to move the bars and, in turn, the anvil member into and out of clamping position.  The shaft and eccentric cams are provided with circumferentially spaced teeth extending axially so that the cams are locked in any adjusted position.  The position of a cam can be adjusted by moving the cam axially relative to the shaft to disengage the teeth on the cam from the teeth on the shaft, rotating the cam to the desired adjusted position and moving the cam axially to reengage the teeth.   i
Patent CA-1209646-A (CA)
Inventor: MILLER MATTHEW S
IPC: F24C7/02
Filed: 1983-12-09
Granted: 1986-08-12
Abstract: ROTATING SLOT ANTENNA ARRANGEMENT FOR MICROWAVE OVEN    ABSTRACT           An excitation system for a microwave cooking appliance which employs a low profile rotating disk to enhance time-averaged uniformity of energy distribution within the resonant cooking cavity.  A rectangular waveguide couples energy from the magnetron to the cooking cavity.  A cir-cular opening is formed in a common wall between the waveguide and the cooking cavity, which opening is essentially blocked by a rotatable metallic disk overlapping the opening on the cavity side of the wall.          An elongated radiating slot is formed on the disk for coupling energy from the waveguide to the cooking cavity extending generally transverse to the radius of the disk.  The axis of rotation of the disk is longi-tudinally spaced an odd integral multiple of quarter guide wavelengths from the short circuit termination of the waveguide, and the longitudinal axis of the radiating slot is radially spaced approximately one quarter guide wavelength from the axis of rotation of the disk, thereby orienting the slot alternately as a series slot at a maximum wall current point and a shunt slot at a maximum field point with each quarter revolution of the disk.  During each complete rotation of the disk, the slot passes through four maximum energy coupling positions with less optimum coupling positions interspersed therebetween, thereby enhancing time-averaged energy distri-bution uniformity in the cavity by periodically varying the radiation intensity of the slot and its position in the cavity during each rotation of the disk.
Patent CA-1219565-A (CA)
Inventor: BURTON GEORGE W
IPC: B65D83/04
Filed: 1983-12-21
Granted: 1987-03-24
Abstract: A B S T R A C T     A dispensing container for dispensing small tablets one at a time wherein the container comprises an inner element within an outer element, both elements being substantially rectangular in plan so as to form a flat dispensing pack, and wherein the outer element has a tablet orienting member with a channel to receive tablets and to arrange the tablets in alignment, the channel terminating at one end thereof adjacent to a pocket provided in a projecting member, on the inner element, which is shaped to receive a single tablet, a dispensing opening being provided in the bottom of the outer element through which the projecting member can pass in such a way as normally to close the opening, downward movement of the inner member relatively to the outer member being effective to uncover the opening to dispense a single tablet.
Patent CA-1223701-A (CA)
Inventor: FOSTER L DALE
IPC: A61G7/00
Filed: 1983-12-28
Granted: 1987-07-07
Abstract: ABSTRACT OF THE DISCLOSURE         A bed uniformly distributes the weight of a bed-ridden patient to minimize the occurrence of bedsores.        The bed comprises a frame and a plurality of support assemblies mounted on the frame.  Each support assembly comprises a plurality of elongate support slats extending transversely of the fore-aft direction, and a pair of transversely spaced lever modules carrying opposite ends of the slats. Each lever module comprises a plurality of levers which are so mounted as to be swung in response to the downward action of heavier portions of the patient, whereupon opposite ends of the levers swing upwardly to transfer some of that weight to the lighter portions of the patient's body . The levers disposed on one side of the bed are rotatable relative to the corresponding levers on the opposite side of the bed, whereby the support slats may assume positions inclined relative to horizontal and thereby maintain a greater degree of contact with the patient. The area immediately beneath the slats is vacant, whereby an air-circulating channel can be formed for circulating drying/warming air to the patient. Moisture can gravitate from the patient into the channel and be collected upon a moisture collector for removal. Some of the support modules can be mounted for movement relative to an articulated bed frame in the fore-aft direction to avoid colliding with the frame and/or one another as the bed is articulated upwardly.          A highly porous mattress can be utilized which facilitates the upward circulation of air to the patient and the downward gravitation of moisture away from the patient.
Patent CA-1224611-A (CA)
Title: Procede simplifie pour l'obtention de fil polyester a   grande vitesse
Inventor: PEREZ GERARD
IPC: D02J1/00
Filed: 1984-01-26
Granted: 1987-07-28
Abstract: L'invention concerne un procédé de filage simplifié de fils à base de polytéréphtalate d'éthylène, à grande vitesse et avec appel direct sur le bobinoir. Ce procédé est caractérisé en ce qu'après leur sortie de la filière, les filaments sont refroidis au moyen d'un fluide gazeux simultanément regroupés et ensimés en un point de convergence situé à une distance 1l de la filière telle que 1o ? 1l ? 1o + 30 cm, la valeur de 1o correspondant au ler point pour lequel la dérivée de la courbe représentant la biréfringence des filaments en fonction de la distance (en cm) passe par un maximum, et renvidés à vitesse égale ou supérieure à 4 500 m/min, de préférence égale ou supérieure à 5 000 m/min, la distance maximale entre la filière et le point de dépôt du fil sur la bobine étant comprise entre 100 et 200 cm. Les fils obtenus sont utilisables tels quels ou peuvent être texturés. L'invention concerne également les articles en forme tels que fils, tissus ou tricots, obtenus à partir des filaments issus du procédé ci-dessus mentionné.
Patent CA-1197193-A (CA)
Inventor: PARAZADER GEORGE RIDGE RD N R
IPC: F01N1/02
Filed: 1984-02-20
Granted: 1985-11-26
Abstract: A B S T R A C T   This invention combines the exhaust pipe, tailpipe and muffler presently in use to silence exhaust gases of internal combustion engines into one continuous unit.  The use of two pipes, one of which fits into the other such that gases may pass alternatively through the inner pipe as well as in the area between the two pipes and with the inner pipe having incorporated into it various size openings at particular locations as well as inner and outer baffles, creates the necessary expansion, resonance and spit chambers to effectively muffle or silence the sound of the gases while conducting same to the atmosphere.          To install the unit on any vehicle using an internal combustion engine,the unit can be bent to the desired shape and installed in the usual manner using clamps and hangers without reducing the effectiveness of the unit.          This system standardizes muffler exhaust systems, reduces manufacturingand storage costs and because of its simplistic design and ease of manufacture can be economically produced using other materials, particularly stainless steel.  The unique design allows for a more uniform heat distribution and less entrapment of moisture which decreases rusting thereby prolonging the life of the component.
Patent CA-1226738-A (CA)
Inventor: ORMESHER ROBERT J
IPC: C22B7/00
Filed: 1984-03-08
Granted: 1987-09-15
Abstract: Abstract of the Disclosure An improved method of melting metal scrap in a molten melting media is disclosed.  The method comprises the steps of providing a body of molten melting media in a housing having an upper portion and a lower portion, the lower portion having a generally cylindrical wall section.  A supply of metal scrap is added to the housing and a supply of molten melting media is introduced to the upper portion of the housing.  Melting of the metal scrap is initiated by ingesting it and molten melting media downwardly in the housing by action of an impeller positioned in the lower portion, the impeller having a flat ring member having an opening in the center thereof and having blades extending from said ring member to a substantially circular disc member.  The scrap and melting media enters the opening in the ring member in an axial direction and is propelled therefrom in a radial direction by use of the blades.   The impeller is positioned in the cylindrical wall section such that at least the ring member cooperates therewith to move the scrap and melting media from the upper portion through said impeller while substantially avoiding recirculation of the molten melting media within the housing to the upper portion.
Patent CA-1211132-A (CA)
Inventor: NAKAMURA KUNIHIKO
IPC: B65H29/40
Filed: 1984-03-14
Granted: 1986-09-09
Abstract: Abstract of the Disclosure A stacking apparatus for paper sheets has a transporting belt mechanism for sequentially supplying paper sheets one by one at predetermined intervals, rotatable blade wheels for receiving the paper sheets in elongated spaces defined there between, a stationary stop for abutting against the paper sheet rotated together with the blade wheels to remove each paper sheet from the space and for dropping the paper sheet toward a predetermined stacking position of a stacking unit, separators which are coaxially rotated together with the blade wheels without briny brought into contact with the paper sheets inserted in the spaces, which stop at a receiving hand immediately before a first paper sheet drops from the blade wheels and which receive the subsequent paper sheets, which are started when a predetermined number of paper sheets previously stacked in the stacking position is cleared away by the stacking unit, which transfer the paper sheets from the receiving hand to the stacking position, and which are operated such that the paper sheets discharged from the blade wheels are directly stacked on the stacking position until the first paper sheet of the next group having the predetermined number of paper sheets drops, and a control circuit for controlling the blade wheels, the separators, and a controlling unit to achieve the operation mentioned above.