baber/WOPTO huggingface dataset:
Patent GB-800547-A (GB)
Abstract: 800,547. Positive clutches; cams. CANADIAN PATENTS & DEVELOPMENT, Ltd. April 23, 1956 [April 22, 1955], No. 12383/56. Classes 80 (2) and 80 (3). [Also in Groups VIII and XIX] A clutch for use in a workmen's time-recorder (see Group XIX) comprises an annulus 74, Fig. 20, integral with a bearing 82 freely mounted on a continuously rotating shaft 70 to which a ratchet 73, Fig. 17 is secured. The ratchet 73 is surrounded by an annular pawl 76 pivoted to the annulus 74 at 74a and limited in its movement relative thereto by a notch 74b co-operating with a pin 76a. The pin 76a is urged against one side of the notch 74b by a spring 75 extending round the bearing 82, but is normally maintained against the other edge by an arm 72 engaging the other end of the pin 76a and holding the pawl 76 free from the ratchet 73. When a clutch controlling solenoid is energized, the arm 72 is withdrawn, the pawl 76 engages the ratchet 73, the normally stationary clutch parts 74, 82 turn with the shaft 70 and toward the end of a revolution, open a switch to deenergize the solenoid so that the arm 72 moves back to engage the pin 76a and the clutch parts come to rest again. A cam 102, Fig. 10, used in the same recorder, comprises a pivotally mounted cam portion 103 which lags behind the main cam surface to prolong the contact between the cam 102 and a lever 104 preventing the shock of a quick slip off.
Patent GB-2044491-A (GB)
Title: Automatic control of temperature
IPC: G05D23/24
Filed: 1980-02-20
Abstract: The temperature of a semi-conductor gas sensor 8 (Fig. 1) is controlled by a circuit Fig. 2 including a heater 6 and an NTC temperature sensor 7 in a bridge circuit. The desired temp. is pre-set on a pot 15 and deviation therefrom results in bridge output to an operational amplifier 19. A feedback circuit to the amplifier input including a capacitor 21, causes the amplifier to produce an oscillatory output, eg at 1 KHZ. Thereby a transistor 20 is controlled so as to apply current pulses through heater 6 with a mark/space ratio dependent upon the amount of temperature deviation. <IMAGE>
Patent GB-2075161-A (GB)
Title: Reclaiming sliding gate valve components
IPC: B22D41/30
Filed: 1980-04-25
Abstract: The can of a canned refractory (30) is recovered for reuse by heating the canned refractory in an oven to 200-300 DEG C, after which the canned refractory is placed on a support (32) which engages only the edges (33) of the can, the refractory (34, 36) being unsupported. Thus supported and while it is still hot, the canned refractory is subjected to a pressing operation, a driven plunger being forced against the refractory (36) so as to thrust it out of the can. <IMAGE>
Patent GB-2051230-A (GB)
Title: Ignition System for an Internal Combustion Engine Employing Fuel Injection
IPC: F02P5/04
Filed: 1980-05-13
Abstract: Each fuel injection valve has an electrically conductive needle 222 biassed into contact with a conductive valve seat 251 by a metal spring 220 otherwise insulated from the valve body. The needle lifts from the seat by fuel pressure and a thin film of fuel forms between the needle and the valve body to create a high resistance path therebetween. An electrical signal is developed by a comparator circuit and used to initiate an electric spark for the injected fuel.   <IMAGE>
Patent GB-2080640-A (GB)
Title: Power supply systems
IPC: H02H3/46
Filed: 1980-07-14
Abstract: For safeguarding an alternating current electrical power supply system against a blackout due to overloading, particularly on a system which is not strongly interconnected, each consumer (20, 21, 22) is provided with means sensing when the supply frequency falls below a predetermined frequency, these means controlling switching devices (36) for interrupting the power to at least part of the load taken by each consumer. The sensing means conveniently comprises a control unit (50) responsive to the loss in phase lock of an oscillator (40) locked to the incoming supply frequency and forming for example part of an energy metering device. Provision is made for automatic restoration of the supply to loads when the frequency increases to another predetermined value.
Patent GB-2087079-A (GB)
Title: Electronic safety switch
IPC: H03K17/97
Filed: 1980-10-01
Abstract: The switch has an actuator unit 12 and a switch unit 10 for attachment to relatively movable parts such as a door and door frame. The actuator unit 12 contains a plurality of bar magnets 16. When the units 10, 12 are closed together as shown, the magnets 16 switch on respective Hall-effect devices 26 mounted on a p.c.b. 22. A logic circuit on a second p.c.b. 24 provides a low-level logic output on cable 30 when all three devices 26 are on. <IMAGE>
Patent GB-2063973-A (GB)
Title: Roadway Barrier
IPC: E01F15/08
Filed: 1980-11-21
Abstract: A roadway crash barrier deformable under impact includes a pair of panels (14) deforming a cavity (22) for receiving ballast and connection means (26) for removably connecting the panels (14) together in spaced relationship. The panels 14 are secured to bulkheads 36 by rods 26 passing through holes 35, 39, 46 in the panels, bulkheads and locking brackets 42 respectively. The barrier provides lesser impact resistance in its lowermost zone. <IMAGE>
Patent GB-2064889-A (GB)
Title: Lampholders
IPC: H01R33/46
Filed: 1980-12-04
Abstract: A lampholder has its mains terminals covered by a cap (20) engaging a body part (11). Interengaging formations, lugs (17) on the cap (20) and recesses (15) in the body portion, cooperate to prevent both relative rotation and axial separation of the cap and body part. A threaded collar (30) may be provided to prevent unwanted disengagement of the formations and removal of the cap, which usually snap-fits to the body portion. <IMAGE>
Patent GB-2094107-A (GB)
Title: Digital code for line transmission
IPC: H04L25/49
Filed: 1981-01-16
Abstract: A method of transmitting information encoded into a binary digit stream in which successive groups of N binary digits are translated into corresponding groups of M binary digits, where M > N, the translation being accomplished according to at least the following rules:-   a) only M-bit groups having a disparity not exceeding +/- (M/2 - 2) are allowable; b) no M-bit group having more than n consecutive ones or zeros at the beginning or end is allowable, where n =M/2; c) no zero disparity M-bit group having more than n-2 consecutive ones (zeros) at the end and n-1 consecutive ones (zeros) at the beginning is allowable. The resulting M-bit code will have the unique features of   1) peak digital sum in every group occurs at the same digit position;   2) maximum run of like digits between successive groups only occurs with the last digit of the run always in the same digit position.   f
Patent GB-2069722-A (GB)
Title: Fuel injection pumping apparatus
IPC: F02M41/14
Filed: 1981-01-20
Abstract: A fuel injection pumping apparatus includes an axially movable distributor member 12 which carries pumping plungers 14 movable inwardly to effect delivery of fuel by means of cam lobes formed on a cam ring 32. The axial position of the distributor member determines the amount of fuel supplied by the apparatus each time the plungers are moved inwardly by means of outwardly flared surfaces on a head portion 24 of drive shaft 22 with which the pumping plunger's shoes 26 coact. The distributor member is moved axially by varying the volume of liquid fuel in a chamber 30, the distributor member moving as the volume of liquid increases against the action of a spring 29. The volume of liquid is controlled by means of a sleeve 35 axially movable by means of a governor mechanism 36 which includes weights 45. The sleeve controls the size of a port 34 which communicates with the chamber and liquid is supplied to the chamber through a passage 37 from a supply pump 21. Arrangements for advancing and retarding the timing, by moving cam ring 32, in response to engines speed and/or load are described with respect to Figure 2, (not shown). A modified arrangement of distribution is described with respect to Figure 4 (not shown). <IMAGE>
Patent GB-2069428-A (GB)
Title: An articulated vehicle
IPC: B62D47/02
Filed: 1981-02-04
Abstract: An articulated road bus which consists of two articulated units includes hydraulic piston/cylinder assemblies 3, 4 extending between the two units. The assemblies 3, 4 are interconnected hydraulically through a control system including at least two damping valves 19, 20 which serve to dampen the flow of hydraulic fluid between the assemblies 3, 4 and hence provide a damping resistance to angular displacement between the articulated units. The damping valves 19, 20 in conjunction with a non-return valve 17 are selectively switchable into and out of the hydraulic path between the two assemblies 3, 4 to provide a damping resistance which is not only variable independently of the rate of change in the angle of articulation but is also variable as a function of vehicle speed and the angular displacement of the vehicle's steerable wheels. <IMAGE>
Patent GB-2094579-A (GB)
Title: Signal sampling gate circuit
IPC: H04N9/793
Filed: 1981-02-27
Abstract: Signal sampling transistors (Q60, Q62), to which signals to be samples are coupled under the control of a first gate signal, and which couples those signals to holds circuits according to the first gate signal, are provided. A switching circuit for differentially switching the signal sampling transistors (Q60, Q62) to complementarily turn off one of those transistors is also provided. This switching circuit includes transistors (Q66 to Q69), one of which is turned on while the other is turned off according to a second gate signal. The individual switching circuit transistors (Q66 to Q69) are connected to the respective sampling transistors (Q60, Q62). With this arrangement, of the sampling transistors (Q60, Q62) one to which the "on" state one of the switching circuit transistors (Q66 to Q69) is connected is turned off while the other is turned on. Thus, the conduction state of the sampling transistors (Q60, Q62) for coupling the aforementioned signals to be sampled to the had circuits can be forcibly controlled by the second gate signal irrespective of the first gate signal. <IMAGE>
Patent GB-2094969-A (GB)
Title: Method of combustion of pulverized coal by pulverized coal burner
IPC: F23C6/04
Filed: 1981-03-13
Abstract: A method of combustion of pulverized coal in two stages of combustion to reduce the amount of NOx produced by combustion. In a first stage, exhaust gas is added to air for combustion in a proportion of 35-60% of the air necessary for carrying out combustion. In a second stage, air for combustion is supplied in a proportion of 25-35% of the air necessary for carrying out combustion. In this method of combustion, the pulverized coal is combusted slowly at low temperature with the formation of a flame of low brightness to produce in large amounts activated intermediate components responsible for denitration reaction to promote reduction of produced NOx, and the concentration of CO produced can be reduced by abstaining from using the minimum air necessary for combustion. <IMAGE>
Patent GB-2072815-A (GB)
Title: A line-thrower
IPC: F41A9/00
Filed: 1981-03-19
Abstract: A line-thrower comprises a cylindrical housing (10) and a discharge tube (16) fitted centrally therein in such a manner that a chamber (18) for storing a spool of line (21) is provided. During a feeding-out from the inside towards the outer portion of the spool the resistance will gradually increase during the passage of the line through an opening (20) in a shield (19). The braking action may be increased by the marginal portions (45) of the spool being impregnated with glue. A rocket (25) is located within the discharge tube and has a firing mechanism (26) at its forward end, which is accessible through a restricted throat (12) of the housing. A connection between the rocket (25) and the line (21) is obtained by means of a sleeve (33), which is slideable along the rocket towards a shoulder (35) at the rear end thereof. The sleeve carries a bridle (34) of flexible, non-combustible material. The bridle has sufficient length to permit the rocket (30) to be removed from its discharge tube, for replacement without disturbing the line. A soft metal wire (37) is attached to the bridle and is wound several turns around the discharge tube before it is attached to the line (21). The discharge tube comprises a tubular portion (16a), which is fitted to the bottom (17) of the discharge tube, by means of an easily breakable member (42) so that the tubular portion (16a) is pulled along by the metal wire (37) during the initial stage of the launching. <IMAGE>
Patent GB-2078512-A (GB)
Title: Fire-suppression equipment
IPC: A62C35/02
Filed: 1981-06-16
Abstract: Fire-suppression equipment comprising a pressurised container of fire extinguishment, for example halon gas, having a discharge nozzle normally closed by a normal-closed control valve openable manually or by a solenoid actuated by a signal from a fire detector or by gas pressure from an external gas bottle operated manually remote from the pressurised container or by any combination of these three modes of operation. A particular application of the fire-suppression equipment is the protection of complex and expensive electronic equipment such as computers which are enclosed in protective cabinets and consequently are inaccessible for fire-suppression purposes, and for this purpose the equipment includes a multi-outlet coupling assembly adapted to be fitted to the discharge head of the pressurised container, each outlet being adapted by means of a flexible hose and a probe which can be fitted into a convenient aperture in the cabinet casing. <IMAGE>
Patent GB-2100920-A (GB)
Title: Reducing gain ripple in travelling wave tubes
Inventor: CARTER RICHARD GEOFFREY
IPC: H01J25/38
Filed: 1981-06-20
Abstract: To reduce gain ripple,the radial coupling co-efficient, which is a function of the beam radius and of the beam tunnel radius, at the input and/or output end of an interaction section of the tube, is reduced. In the case of a cloverleaf tube the reduction is achieved by increasing the diameter (e.g. doubling) of the beam passage holes in the first and/or last coupling plates 8, 14 of the section. The diameter of the beam passage holes in the penultimate plates 9, 13 may also be increased to a lesser extent, (e.g. by a factor of one and a quarter). Particularly in the case of a travelling wave tube of the space harmonic type, the axial coupling co-efficient may be reduced in the same regions. <IMAGE>
Patent GB-2083384-A (GB)
Title: Making caddy type tin boxes
IPC: B21D51/38
Filed: 1981-08-04
Abstract: A method of making a caddy type tin box including the steps of forming what is to be a shoulder portion and a neck portion in tinplate. In order that changes can be made simply and easily so as to justify relatively short production runs, the shoulder portion 12 is punched from one piece of tinplate and the neck portion 14 is punched from another piece of tinplate and the two parts are then joined together. This method of production enables the neck portion to be formed by a rolling technique and to be formed with a bead on which a lid can subsequently be fitted. <IMAGE>
Patent GB-2077685-A (GB)
Title: Conveyor
IPC: B65G17/08
Filed: 1980-07-16
Abstract: Conveyor comprising on the one hand a chain of a number of links (1) preferably made of plastic material and connected with each other by means of articulations preferably of universal joint type, which articulations exhibit shaft pins (9) extending in transverse direction across the chain, and on the other hand a guiding means (2) exhibiting sliding surfaces of which upwards facing load-carrying sliding surfaces (25) form part, along which the links are arranged to displace themselves under the actuation of traction forces, which are transmitted between the links via said articulations, the links being arranged to carry and transport goods and exhibiting on the one hand goods-carrying surfaces (7) and on the other hand sliding surface (27, 45, 47), which are arranged to cooperate with the sliding surfaces of the guiding means. Each link (1) being divided up on the one hand in a first component (3), which is provided with the articulation (5) of the link, and on the other hand in a second component (4), which is designed as a separate unit, which by means of fastening means can be detachably attached to the first component and exhibits projecting portions (41), which extend over the outsides of the lateral portions of the respective first component (3), between which the articulation (5) of this component is placed, in such a manner that said shaft pins (9) obtain a support against said portions (41) of the second component, so that the shaft pin is retained in position at the same time as its ends are protected from contact with the guiding means (2).
Patent GB-2104887-A (GB)
Title: Decarboxylase-inhibiting acetylenic diaminobutane derivatives
Inventor: GERHART FRITZ
IPC: A61K31/16
Filed: 1981-08-19
Abstract: Novel acetylenic diamine derivatives are inhibitors of decarboxylase enzymes involved in polyamine formation and have the following general Formula I:-   <IMAGE>  wherein:-  Ra represents hydrogen or Rd, where Rd is as defined below; Rb represents hydrogen or, when Ra is hydrogen, Rd, where Rd is as defined below;  Rc represents hydrogen or -CORe, where Re is as defined below; each Rd independently represents C2-C5 alkyl-carbonyl, phenylcarbonyl, phenyl(C1-C4 alkyl)carbonyl, or an aminocarboxylic acid residue derived by removal of an hydroxy group from a carboxy moiety of an L-aminocarboxylic acid; Re represents hydroxy, or, when Ra and Rb are both hydrogen, C1-C8 alkoxy, NRfRg, where Rf and Rg are as defined below, or an aminocarboxylic acid residue derived by removal of a hydrogen atom from the amino moiety of an L- aminocarboxylic acid;  Rf and Rg independently represent hydrogen or C1-C4 alkyl;  R1 represents hydrogen or C1-C6 alkyl;  Z represents methylene or oxygen; and m and n each represent 0 or 1 but m+n=1.
Patent GB-2084083-A (GB)
Title: Method and apparatus for tuning ink jets
IPC: B41J2/045
Filed: 1981-09-10
Abstract: One or more portions of an ink jet transducer 20 surrounding a chamber 14 are deactivated so as to tune the transducer 20 to the transducer drive 22 rather than vice versa. Deactivation may be accomplished by creating a discontinuity 28 in a conductive coating 38 on the transducer 20 or by partially depoling the transducer 20. Thus effective length 'I' of transducer 20 can be shortened to 'I'' to correspond to the actual operating voltage value V'op of the transducer drive 22. Alternatively, a transducer 20 may have several discontinuities 28 and by conductively bridging the appropriate number the required length 'I'' can be built up. It becomes possible, therefore, to tune the operating voltage of an individual ink jet 12 upwards to a preselected voltage after determining the initial post-assembly operating voltage of that individual ink jet. <IMAGE>
Patent GB-2106979-A (GB)
Title: Door locks
Inventor: CORREIA JOAQUIM CARVALHO MACED
IPC: E05C1/16
Filed: 1981-09-29
Abstract: A door lock comprises a lockable, linearly moving latch bolt 6, having a single operating member 3 on the inside of the door, by which all the operating actions of the lock can be performed. The single operating member comprises a rotatable first part 3A and a linearly movable second part 3B, with the first part co-axially surrounding the second part. Retraction of the latch bolt against the force of a latch spring is performed by rotation of the first part of the knob. Locking means for locking the latch bolt in the retracted position is constructed and arranged to be operated by depression of the second part of the knob. <IMAGE>
Patent GB-2085013-A (GB)
Title: Stabilizers for Vinyl Chloride Polymers
IPC: C08K5/59
Filed: 1981-10-07
Abstract: A stabilizer composition for vinyl chloride polymers comprises a combination of an antimony mercaptoacid ester or mercaptide and a phosphite ester. The composition is effective to stabilize the vinyl chloride polymer against color degradation upon prolonged exposure to heat or ultraviolet radiation.
Patent GB-2088407-A (GB)
Title: Preparation of Hydrocarbons from Syngas
IPC: B01J23/00
Filed: 1981-11-26
Abstract: Two stage process for the preparation of hydrocarbons from syngas with a H2/CO mol. ratio between 1.0 and 2.0 in which the syngas is contacted in a first stage with a Fe-comprising catalyst composition having Fischer-Tropsch as well as CO-shift activity followed by contacting at least the H2 and CO separated from the first stage product in a second stage with a mono- or bifunctional catalyst comprising a Ni, Co or Ru Fischer-Tropsch function.
Patent GB-2111190-A (GB)
Title: Ventilation equipment
Inventor: ROBSON COLIN JAMES
IPC: F24F13/06
Filed: 1981-12-08
Abstract: A diffuser (2) comprises a generally cylindrical sack of foldable material, the sack being made up of a generally cylindrical wall component (3) and an end wall component (4). Both the components (3,4) are provided with holes (6,7). The diffuser can be used on the end of ducting (1) of a forced ventilation system in a mine to minimize the disturbance of dust by high velocity air discharging from the ducting. <IMAGE>
Patent GB-2095594-A (GB)
Title: Improvements in grinding control method and apparatus
IPC: B24B49/18
Filed: 1982-03-29
Abstract: Grinding control methods and apparatus pertaining generally to maintaining the shape and sharpness of a grinding wheel 20, despite the tendency of the wheel face to deteriorate from the desired shape and sharpness, as grinding of a given workpiece 24 or a succession of workpieces proceeds. Generally, as a common denominator of the novel features disclosed, a "conditioning element" 50 is brought into rubbing contact with the face of the grinding element under specially controlled and unique conditions to (i) restore the desired shape (conventionally called truing), or (ii) to establish the desired degree of sharpness (conventionally called "dressing"), or to accomplish both (i) and (ii) simultaneously. The methods and apparatus disclosed include creating the aforesaid controlled rubbing contact either while the grinding wheel is free of grinding contact with a workpiece or simultaneously while grinding is occurring, and then either continuously or intermittently. The methods and apparatus in many of their various embodiments involve use of a "truing element" or a "conditioning element" which may be softer, equal to or harder, or vastly harder than the grit of the wheel, and which may be diamond, a generally homogeneous metal, and in many cases the same metal as that of the workpieces being ground. In their different facets, the disclosed inventive features involve truing of wheel faces by controlling relative surface speeds and feeds of the wheel and the conditioning element. <IMAGE>
Patent GB-2097149-A (GB)
Title: Apparatus for aligning an optical fiber with a collimating lens
IPC: G02B6/38
Filed: 1982-04-16
Abstract: Apparatus for aligning a single optical fiber (23) with a collimating lens (21) includes an alignment bushing (25) having a chamfer (27) on a first side surface (29) adapted to receive the spherical collimating lens (21). An orifice (31) is arranged concentrically with the chamfer (27) and extends through to a second side (33) of the bushing (25). The orifice (31) is sized to securely hold a single optical fiber. In this way, a single relatively simple element accomplishes all of the axial alignment functions between the optical fiber and the spherical lens. <IMAGE>
Patent GB-2101898-A (GB)
Title: Apparatus for a horsejumping game
Inventor: DENNING RAYMOND ARTHUR
IPC: A63F9/04
Filed: 1982-06-18
Abstract: The apparatus comprises a board (1) having a course (2) marked thereon, obstacles such as fences, gates, and a wall, which can be placed at random, at least one model horse and rider, coloured dice, a random time generator and time recorder which determines times in accordance with throws of the dice. <IMAGE>