baber/WOPTO huggingface dataset:
Patent GB-2008895-A (GB)
Title: Improvements in or relating to the switching of digital signals
IPC: H04Q11/04
Filed: 1978-11-07
Abstract: A digital switching device of the stored programme type has an input time switching stage 15, an output time switching stage 16, a space switching stage 17 intermediate the time switching stages and a central control unit 25. Each time switching stage has a connection store (174, 174') - Figs. 12, 15 (not shown) - and the space switch Fig. 16 (not shown) has comparison means (314, 315) linked to the connection stores (174, 174'). The comparison means compares the contents of connection stores and controls the operation of the space switch on the basis of this comparison. <IMAGE>
Patent GB-2013412-A (GB)
Title: Parallel sided winding slots in a rotor for an electric machine
IPC: H02K3/12
Filed: 1979-01-16
Abstract: The rotor (1) has parallel sided slots (2) which are wider at their open end than at the bottom. This shape is stated to be suitable for use with inexpensive aluminium windings instead of copper windings without impairing the performance characteristic. The rotor may be formed of laminated plates, or metal strips wound edgeways; and the windings may be shaped to fit the groove and have an impregnating agent applied to them in the slots. <IMAGE>
Patent GB-2012665-A (GB)
Title: Joining pieces of laminar material
IPC: B29C65/50
Filed: 1979-01-18
Abstract: An apparatus for joining plywood core strips comprises a first set of conveyor belts (1) for feeding the wood strips to be jointed, a second set of conveyor belts (7) moving at a slower speed than the belts (1) and pressure elements (22, 24), effective to press the wood strips against the conveyor belts (1 and 7). Each pressure element includes a rod (22, 24) having its front end (22f, 24f) bent upwardly and pivotally supported by the machine frame (23, 25) through a linkage (22a, 22b, 24a, 24b), each rod (22, 24) being urged against the underlying conveyor belt (1, 7) by a pneumatic cylinder (22c, 24c). Alignment means (26, 26') including stop pawls (26') and sensors (34) controlling the actuation of the stop pawls (26') are provided to align the strips perpendicular to the feeding direction. Adhesive coated threads (46) fed from rolls (45, 50) are applied across and on both sides of abutted edges of adjacent wood strips, the adhesive coating being softened either by ultrasonic sonotrodes (47, 54) or electrical resistance heating devices. Pressing rollers (42, 39) are provided. <IMAGE>
Patent GB-2016560-A (GB)
Title: Method of and apparatus for cutting channels
IPC: E02F5/10
Filed: 1979-03-01
Abstract: Channels are cut in the ground or sea bed using high pressure water jets. The jets preferably cut slots which are preferably undercut so that the channels can be completed using a plough. <IMAGE>
Patent GB-2019118-A (GB)
Title: Terminal contact
IPC: H01R4/24
Filed: 1979-03-27
Abstract: A terminal contact (1) made from a metal sheet of even thickness has a slot (2) for receiving an insulated electrical connection wire (8, 10) and for cutting through the insulation (10) as a result of pushing of the wire into the slot. The slot is, at least along an inner part, provided with bevelled sides (7). The bevelled sides (7) of the slot are smooth and bright and are produced by inserting a wedge shaped portion of an anvil through a slot in a metal sheet and stamping two elongate grooves (4) in the sheet to cause the metal to be pressed against the wedge shaped portion. <IMAGE>
Patent GB-2022515-A (GB)
Title: A head for a dot printer
IPC: B41J2/275
Filed: 1979-04-25
Abstract: A head for a dot printer comprises print wires (2) each of which engages with one end of a respective operating plate (1) arranged to be driven by a respective electro-magnet (11). A spacer sheet (16), impregnated with lubricant, is disposed between the operating plate and a yoke plate (15) to which the operating plates are attracted when the electro-magnets are energised. The spacer sheet (16) thus reduces wear and friction by acting as a long lasting supply of lubricant. In another embodiment (Figure 3) the spacer sheet has tongs which extend into the regions where the print wires engage the respective operating plates to lubricate those regions. <IMAGE>
Patent GB-2048086-A (GB)
Title: Water Squirting Boat
IPC: A63H23/04
Filed: 1979-05-11
Abstract: An amusement device comprises a motor-driven vessel which floats in a liquid but which includes openings in its bottom so that liquid can pass into the internal cavity formed between top member (20) and bottom member (10). Buoyancy bags (16) prevent the vessel sinking. A reciprocating smokestack (50) is driven from the motor (35), the smokestack having an end sleeve (54) which slides up and down on a post (19). During each reciprocation cycle, a burst of liquid is forced through a hole (53) in the base of the smokestack and ejected from the smokestack as the sleeve (54) slides down the post (19). In addition, the base of the smokestack strikes the top of the post (19) to produce a clicking noise. <IMAGE>
Patent GB-2050319-A (GB)
Title: Applying closures to product- filled deformable containers
IPC: B65B61/00
Filed: 1979-05-31
Abstract: Apparatus and a method are described for the application of closures to product-filled plastics bottles (10). The apparatus includes a chamber (8) which can be lowered into sealing engagement with the neck of the bottle. Within the apparatus a head (24) holds a closure (26) in spaced relationship from the bottle. Gas emitted from a 'T' piece (32) between the bottle and closure purges the closure and bottle of air and eventually purges the chamber of air. Closure of an outlet valve (44) allows the pressure to build up in the chamber. The 'T' piece is swung out of the way and the head brought down to fit the closure to the bottle. The bottle is then released from the apparatus. By filling the head space with a gas inert to the contents, the quality of the contents is maintained. By pressurising the head space, deformation of the bottle is resisted. <IMAGE>
Patent GB-2062049-A (GB)
Title: Foam coating and levelling technique
IPC: E04F13/02
Filed: 1979-10-31
Abstract: A method is provided of foam coating a surface to present a generally flat finish, comprising securing a succession of parallel spaced apart battens (12) to said surface, foam coating the surface between said battens to a depth, which, when the foam sets, is at least equal to the depth of the battens, whilst leaving at least part of the front surface of each batten exposed; and levelling the rigid set foam coating by taking an elongate cutting member (15) which is long enough to span at least two successive battens, positioning opposite ends of said member on said front surfaces of said battens, and drawing said cutting member along said battens, so removing any part of said foam coating which projects beyond said front surfaces of said battens, leaving said foam coating substantially level with said front surfaces of said battens. <IMAGE>
Patent GB-2039465-A (GB)
Title: Process for the manufacture of a printed polyethylene sheet
IPC: B41M1/30
Filed: 1979-12-21
Abstract: The invention relates to the manufacture of a printed polyethylene sheet which is very suitable for use as an exercise mat or play mat. According to the invention, a flexible sheet of polyethylene which is provided with print marks on one or both sides is subjected to a pretreatment, on the surface provided with print marks, in order to render the said surface receptive to adhesion, after which a transparent layer of polyethylene is extruded over the treated surface. Preferably, the extruded layer exhibits a matt surface after cooling.
Patent GB-2044337-A (GB)
Title: A Biasing Unit for a Door Handle and Backplate Assembly
IPC: E05B3/06
Filed: 1980-01-15
Abstract: A self contained basing unit for a door handle and backplate assembly comprising a body (10) for non- rotatably fitting in a backplate, the body rotatably mounting therein a stop member (27) having a central non-circular section bore (29) therethrough and a pair of abutments (34, 35) extending outwardly therefrom in opposite radial directions respectively, the abutments each having a hook-shaped end (37, 39) extending into an elongated cavity (12, 13) in the body to engage a compression spring therein, which biases the stop member to a rest position. The biasing unit is self- contained so that it can easily be fitted in a number of different types of backplate to provide biasing means for the door handle. It also can fit left- and right-hand closing doors. <IMAGE>
Patent GB-2068061-A (GB)
Title: A torque limiting clutch for a power tool
IPC: B25B23/14
Filed: 1980-01-23
Abstract: The clutch has a driven member (14, 17) with a series of interconnected camming surfaces, and the driving member (13) carries clutch balls (18) in radial passages, each ball (18) being biassed against a respective camming surface by spring-loaded sleeve (19). As shown, the clutch is embodied in a pneumatic screwdriver and the camming surfaces have detent recesses (33) or ears whereby a greater torque is transmitted in one direction than the other. A push rod (29) for actuating a valve controlling the air supply to the screwdriver opens the valve upon application of thrust sufficient to compress spring (27) and is released to close the valve when latch sleeve (23) is shifted against spring (37) by sleeve (19) in response to clutch slip. <IMAGE>
Patent GB-2070714-A (GB)
Title: Magnetic device
IPC: D06F49/00
Filed: 1980-02-12
Abstract: A magnetic device to prevent the interlock on the lid of a rotary electric machine being released while the motor is operating comprises a ring 24 of plastics material attached to a stub shaft 25 at the lower end of the motor, the ring 24 acting as a 'primary magnet' and having embedded in the plastic a number of small magnets which present alternate north and south poles, and, located below ring 24, a second ring 26 which also carries alternate north and south pole magnets. The ring 26 is mounted to rotate freely on a shaft 28 and it carries a pin 29 which is adapted, if the ring 26 is lifted and rotated through 90 DEG  or more, to engage a stop 30 on a fixed member 31 on the shaft 28. Attached to the ring 26 is a boss 26' to which is pinned a yoke 32 on the end of an arm 33. Arm 33 is pivoted at 34 to a fixed member and the free end 35 of the arm 33 acts as a stop to prevent an arm 18 moving to a position in which it allows the interlock mechanism to be released whilst the motor is running. When the motor rotates the magnetic rings separate and arm 33 turns about point 34 to place its end 35 in a position to inhibit movement of arm 18 and thus prevent unlocking of the lid. When the motor is stationary, the magnetic ring 26 is attracted towards the magnetic ring 24 causing the free end 35 of arm 33 to move clear of the arm 18 and thereby allow unlocking of the lid. <IMAGE>
Patent GB-2045480-A (GB)
Title: Electronic woman thermometer
IPC: A61B10/00
Filed: 1980-02-18
Abstract: An electronic woman thermometer includes a body temperature measuring circuit for measuring the body temperature, a first memory block for storing the body temperature of the present day and the predetermined number of preceding days, and a second memory block for storing the menstruation cycle data. A determination circuit is responsive to the data stored in the first memory block and the second memory block for determining whether the present day belongs to the conceiving period or the sterile period. The determination result is displayed on a display panel.
Patent GB-2061261-A (GB)
Title: Substituted 2-(pyridylcyclopropyl)-chromones
IPC: C07D405/08
Filed: 1980-07-31
Abstract: Compounds of formula (I> <IMAGE>  wherein  n is 0 or 1; R1 represents a hydrogen atom or a C1-C4 alkyl group which is unsubstituted or substituted by a   <IMAGE> group, wherein each of R3 and R4 independently represents a hydrogen atom or a C1 or C2 alkyl group, thereby providing a basic ester group; R2 represents a C2 or C3 alkyl group or an allyl group, and pharmaceutically acceptable salts thereof have antiallergic activity and are anti-ulcer agents.
Patent GB-2059202-A (GB)
Title: Digitally controlled wide range automatic gain control
IPC: H03G3/20
Filed: 1980-09-04
Abstract: In high speed high quality modems it is important to be able to preserve the gain value for the automatic gain control system during breaks in transmission to permit rapid resumption of normal operation. The a.g.c. circuit includes an a.g.c. transistor amplifier T whose conductance is varied by a control voltage from the output of a digital-to-analog converter D/A which is controlled by a digital-up-down counter, controlled by a window comparator WC which compares the rectified output voltage of an amplifier G with a reference voltage level and upper and lower limits. If the output voltage exceeds either limit, the counter is enabled and the appropriate up or down indication is given. The counter is then clocked to change the drive to the D/A converter which thereby changes the conductance of the a.g.c. transistor T. The state of the up down counter will be used to maintain the a.g.c. at the last level in the event of a transmission break by inhibiting the clock for the counter. <IMAGE>
Patent GB-2063745-A (GB)
Title: Self-tapping screw for plastics parts
IPC: F16B25/00
Filed: 1980-10-31
Abstract: The self-tapping screw with a sheet-metal-type screw-thread (4) and a conical tip portion (2) is characterised by the following features: the thread (4) pitch is between 2/3 and 3/4 of the core (1) diameter; the flank angle of the thread (4) is between 30 DEG  and 50 DEG ; there is provided in the tip portion (2) a V cross-section cutting notch (5), the included angle ( gamma ) of which is 150 DEG  to 160 DEG ; the bottom (6) of the notch (5) intersects the screw axis in or near the tip portion (2). The thread (4) flank angle is preferably 40 DEG . The tip portion (2) is formed as a truncated cone, the end diameter being 10 to 20% smaller than the core diameter. The angle of the notch bottom (6) in relation to the screw axis is 20 DEG  to 35 DEG . <IMAGE>
Patent GB-2064455-A (GB)
Title: Portable Ski Lift
IPC: B61B11/00
Filed: 1980-11-05
Abstract: The lift consists of a motor driven pulley unit 10 adapted to rest upon the ground and be releasably secured to ground engaging members 30, an endless traction rope 18 encircling and extending between a top pulley 12 adjacent to the motor driven pulley unit 10, and a bottom pulley 14. A safety cut-out device including sensing cord 64 is connected between the top pulley and the motor unit so that displacement thereof stops the motor driven pulley. <IMAGE>
Patent GB-2076443-A (GB)
Title: Water closet cistern overflow
IPC: E03D1/00
Filed: 1981-04-27
Abstract: In a w.c. cistern the overflow water is passed by means of a pipe or a duct 12 into the lower end 14 of the flush pipe and is discharged therethrough into the toilet pan. The overflow pipe or duct may be part of an integral siphon-discharge unit. <IMAGE>
Patent GB-2097453-A (GB)
Title: Fastening rails to a wooden railway sleeper
IPC: E01B9/30
Filed: 1981-04-27
Abstract: A wooden railway sleeper 8 has four holes 9 in it, extending downwardly from its upper surface, each hole having in it a stem portion 1 of an anchorage member and material 12 which has set in the hole and holds the stem portion 1 in the hole. Each of the four anchorage members is of sheet metal and has an arch 3 beneath which a passageway is formed into which a leg 13 of a clip, for holding a rail 11 down on the sleeper, can be driven. One rail is between two anchorage members and located by them and another rail is between the other two anchorage members and located by them. Portions 14 of the clips bear on the rail flange and portions 15 of the clips bear on portions 5 of the anchorage members. The sleeper may be for a narrow-gauge railway and may have been made by cutting down a sleeper originally intended for a wider gauge railway. <IMAGE>
Patent GB-2079974-A (GB)
Title: Improvements in Camera Viewfinders for Preparing Overlay Images
IPC: G03B15/00
Filed: 1981-07-01
Abstract: To enable the customer of a hairdresser to appreciate the appearance to be given by a hairstyle, a photograph is taken of the face of the customer and has superimposed upon it a representation of the hairstyle. To ensure that the image of the face appearing in the photograph corresponds in scale to the representation of the hairstyle, the face of the subject as viewed through the viewfinder system of the camera is compared with a template in the form of a silhouette 2 of a human face on a suitable mount, conveniently a mirror 1 of the viewfinder system of the camera. <IMAGE>
Patent GB-2081847-A (GB)
Title: Control valves
IPC: F02K9/58
Filed: 1981-07-20
Abstract: A control valve, for adjustment of the quantities of propellant fed to the combustion chamber of a rocket propulsion unit of variable output performance, comprises a tubular control element E by which two annular and mutually coaxial feed channels 3 and 4 for two liquid propellants B and O flowing to the injection head are separated from each other up to the injection point where the injection flow cross sections are controlled. The tubular control element E is fixed in the housing of the propulsion unit. Centrally within the tubular control element E is a control piston K which controls the radially innermost feed channel 3 for one liquid propellant O, and coaxially outside the tubular control element E is a slide valve V, operatively connected with the control piston K and serving to control the radially outermost feed channel 4 for the other liquid propellant. The valve slide V and piston K are situated in such a way that they are adjustable in an axial direction. The valve slide V is provided on the outside as viewed in the radial direction with an annular piston 18 which slides in a cylinder 16 connected to a pressure system supplying the radially outermost feed channel 4 with the propellant B. <IMAGE>
Patent GB-2085552-A (GB)
Title: Damper Disc
IPC: F16F15/121
Filed: 1981-09-21
Abstract: A damper disc applicable to a clutch disc comprises a hub flange 3; a pair of annular side plates 5, 6; a pair of annular sub-plates 16 disposed respectively between the side plates 5, 6 and the flange 3; stud pins 18 connecting the sub-plates 16 together; recesses 33 formed at middle portions of the side edges of openings 24, 25, 23 in the flange 3, each stud pin 18 extending through said each recess 33 with a spacing corresponding to a torsion angle for first hysteresis torque between the stud pin 18 and the side edge of the recess 33; stop pins 12 connecting the radially outer portions of the side plates 5, 6 together; notches 30 are formed at outer edges of the openings 24, 25, 23 in the flange 3, each stop pin 12 extending through each notch 30 with a space corresponding to a maximum torsion angle between the stop pin 12 and the side edge of the notch 30. Friction damping 15, 17 of differing degree is applied to sub plates and side plates. Three differing sizes 20, 21, 22 of torsion spring are used. <IMAGE>
Patent GB-2108564-A (GB)
Title: Cabinet drawer interlocks
Inventor: GARDNER JAMES J
IPC: E05B65/463
Filed: 1981-10-16
Abstract: A filing cabinet is equipped with a safety device to prevent more than one drawer being withdrawn at any one time, so that the filing cabinet is less likely to topple. Each drawer is mounted on conventional runners 6 and is provided with a profiled strip 7 and a block 8 at one side. A bar 12 is vertically slidable within a recess 10 in one side 11 of the housing, and a respective peg 13 projects from the bar 12 adjacent the mouth of the passage 9 defined between each profiled strip 7 and the adjacent block 8. As one drawer is withdrawn from the housing, the engagement of the profiled strip 7 of that drawer with the adjoining peg 13 will cause the peg 13 and bar 12 to rise, thereby bringing the remaining pegs 13 in front of their associated blocks 8. The remaining drawers can therefore not be withdrawn from the housing. <IMAGE>
Patent GB-2112442-A (GB)
Title: Emergency door lock
Inventor: NORTH MALCOLM
IPC: E05B39/02
Filed: 1981-12-24
Abstract: A lock comprises a housing 10 and a locking member 11 movable between a locking position and an unlocking position by a carrier plate 12, the lock normally being operated by means of a key. Provided on the lock is an emergency unlocking device comprising a control member 26 which is slidable along guide bar 23 and biased by a spring 27 to unlock the lock by means of extension 34 of member 26 which acts on arm 37 of carrier plate 12. The control member 26 is normally prevented from sliding along guide bar 23 by means of a glass plate 30 which in an emergency can be broken to allow the spring 27 to act on member 26 and hence effect unlocking of the lock. <IMAGE>
Patent GB-2100488-A (GB)
Title: Flame control device for burners
IPC: F24C3/12
Filed: 1982-01-08
Abstract: The present invention relates to a flame-control device comprising:   - a sequencer 1 adapted to deliver control pulses in the cyclic ratio T1/T; - a logic safety unit 5 receiving as input signals, the output signal of the sequencer and a signal sent by a flame-detection electrodes 17 associated with the burner, - and a cut-out circuit 8 interposed between, on the one hand, a source of power L and, on the other hand, an igniter 14 associated to the burner, and an electrovalve 16 controlling the arrival of gas to the burner.   The invention finds a useful application in gas cookers for domestic use. <IMAGE>
Patent GB-2279762-A (GB)
Title: Optical scanning system
Inventor: SILLITTO HILLARY GIL
IPC: H04N3/09
Filed: 1982-02-15
Abstract: An optical scanning system includes scanning means 10, 15 operable to scan an object field and including a rotatable drum 10 having a plurality of plane reflecting faces 11 each perpendicular to the axis of rotation. A detector 16 is provided which is sensitive to radiation directed on to it by the scanning means. Stabilising means 20, 21 are provided which are operable to direct a line of sight through the scanning means towards any selected point in the object field. Preferably the stabilising means comprise a second rotatable drum 20 having the same number of plane reflecting faces as a first drum. The two drums are arranged to rotate at the same speed through the phase angle between them may be varied at will. The stabilising means are used in association with a laser rangefinder 22. <IMAGE>
Patent GB-2095567-A (GB)
Title: Lottery ticket
IPC: A63F3/06
Filed: 1982-03-11
Abstract: A lottery ticket has initially concealed portions 4, 6, 15 indicating that the user is to remove such numbered squares on a concealed grid below. Other embodiments are disclosed including that of Fig. 4 in which a user chooses one of the concealed boxes 20,22 which when rubbed, reveals an instruction as to what operation to perform on the concealed grid below. <IMAGE>
Patent GB-2103398-A (GB)
Title: Microcomputer apparatus for use with a video display
Inventor: MATSUMOTO YOSHIHIKO
IPC: G06F15/78
Filed: 1982-06-15
Abstract: Microcomputer apparatus includes a Zilog Registered Trade Mark Z80A-CPU central processing unit 1 operable with 8-bit data and 16-bit address information, an upper 8-bit address bus 5H, a lower 8-bit address bus 5L, an 8-bit data bus 4, a ROM 2 for storing a monitor program and/or a BASIC interpreter and connected to the central processing unit 1 through the address buses 5H, 5L and the data bus 4, a first RAM 3 for a work area connected to the central processing unit 1 through the address buses 5H, 5L and the data bus 4, a second separate video buffer RAM 12 for video display connected to the central processing unit 1 through the address buses 5H, 5L and the data bus 4 and accessed by I/O instructions from the central processing unit 1, and a cathode ray tube display 23 for displaying a video picture in response to video data stored in the video RAM 12. <IMAGE>