baber/WOPTO huggingface dataset:
Patent GB-693182-A (GB)
Abstract: 693,182. Heat-exchangers. ALLEN, SONS & CO., Ltd., W. H., and OXFORD, J. T. B. July 23, 1951 [Sept. 28, 1950], No. 23756/50. Class 64 (iii) The working fluid (e.g. air) for a gas turbine is heated by waste gases in two successive stages, in the first of which it flows in the same direction as the gases and in the second of which it flows in the opposite direction to the gases. In the apparatus shown, the hot gases flow successively through two annular nests of tubes 6, 7 arranged end to end within a unitary shell, the tubes extending respectively between tube plates 2-4 and 4-3, the tube plate 4 being annular. Air, guided by tubular baffles 10, 12, flows from an inlet 8 to an outlet 13 in contra-flow to the gases in the tubes 6 and in the same direction as the gases in the tubes 7. The individual tubes may be continuous from one stage to the other or the tubes in one stage may be made from different material from those of the other. The apparatus may comprise heat-exchange elements having secondary heating surfaces.
Patent GB-2001906-A (GB)
Title: Synthetic resin moulding or trim strip
IPC: B29C48/12
Filed: 1978-08-03
Abstract: A synthetic resin molding or trim strip prepared by adhering a metallic foil to the surface of a thermoplastic resin substrate or embedding said foil in said substrate by using an adhesive consisting of a transparent thermoplastic high molecular weight polyester copolymer.
Patent GB-2035566-A (GB)
Title: Thickness measuring apparatus
IPC: G01B7/06
Filed: 1978-09-22
Abstract: An apparatus for measuring the thickness of a material 1 comprises a magnet 4 and measuring coil 3 assembly and a magnetically-permeable freely-movable object, such as a steel ball 2, placed on the side of the material opposite from that of the assembly 3, 4, the arrangement being such that the object 2 is constrained by the field of the magnet 4 and the position thereof is sensed by means of the modification of the electric signals in the coil 3 due to the inductive effect of the object 2. An auxiliary measuring system comprising a non metallic probe 5 which is connected to one part of a two part transducer 7 may also be provided for measuring the distance between the coil and the adjacent surface of the material. Alternatively the auxiliary measuring system may be replaced by a balance unit 12, 13, 14, 15 connected in a bridge with the coil 3, the ball 12 thereof being movable relative to the coil 13 by a micrometer or other measuring device so as to balance the bridge and hence provide a measure of the movement of the object 2. <IMAGE>
Patent GB-2016942-A (GB)
Title: A method of and an apparatus for expressing liquid from clarifying sludges
IPC: B01D37/00
Filed: 1978-11-09
Abstract: In a filter press (1) having communicating pressing chambers with a stack of plates (3, 4, 6) squeezable between a movable platen (9) and a fixed end plate (7), an initial sludge charging operation is followed by at least ten pressing operations in each of which there occurs further charging of the pressing chambers with smaller sludge amounts, the charging being initiated when the pressure in the chambers has fallen below a given lower value as a result of filtrate removal and the charging being stopped when the pressure has risen to a given upper value, this upper value being increased stepwise during the pressing operations to a maximum value. The limit value of the pressure in the initial charging operation is not more than 25% of the maximum upper value. The operation may be automatically controlled by a relay circuit controller 126. Additives, e.g. lime, may be mixed with the sludge by an arrangement 58, 121. <IMAGE>
Patent GB-2051264-A (GB)
Title: Expanding-pulley gear control
IPC: F16H61/662
Filed: 1978-12-09
Abstract: A control system for a continuously variable ratio transmission for a vehicle incorporates expanding-pulley gearing controlled by fluid pressures in the two sheaves 26, 27 thereof. The control system incorporates a means for controlling the difference between the pressures in the sheaves in order to control the torque transmitted thereby end also includes means 52, 53 or 54 for limiting the difference between the pressures in the sheaves in order to limit the maximum torque transmitted through the transmission. <IMAGE>
Patent GB-2014237-A (GB)
Title: Preventing Unauthorized Use of Vehicles
IPC: B60R25/21
Filed: 1978-12-18
Abstract: An electrical system of an automotive vehicle engine (1) comprises connected in series and supplied by the vehicle battery (16) a relay (20), a magnetic switch (21) operable by an external magnetic field and an on/off switch (24, 25) controlled by the relay for switching off and on the vehicle electric system depending on the presence or absence respectively of the external magnetic field. <IMAGE>
Patent GB-790157-A (GB)
Abstract: 790,157. Cold-cathode tubes. SIEMENS & HALSKE AKT.-GES. Dec. 23, 1955 [Dec. 23, 1954], No. 36940/55. Class 39(1). A cold cathode gas or vapour filled tube has a hollow cathode 1 consisting of two annular discs 2, 3 joined along an annular zone to enclose a central space extending to an appreciable extent in a direction perpendicular to an aperture, or apertures 6, 7 in the cathode surface. Preferably the discs are joined so that an annular gap is formed at the periphery of cathode to facilitate cathode cooling. The cathode may be made of molybdenum or tantalum and provided with emissive material on its inside surface. The cathode is mounted so that the remaining electrodes, viz. an anode 4, a starting electrode 11 and an auxiliary anode 5 are symmetrically arranged in relation to the axis of the apertures 6, 7.
Patent GB-2018119-A (GB)
Title: Tractor-mounted Device for Picking Up the Tow-bar of a Trailer
IPC: B60D1/46
Filed: 1979-03-30
Abstract: A device for picking up a tow-bar (18) of a trailer has a gripper bar (2) pivoted to a lifting arm (1) which can be elevated through a strut (49) connected to a tractor's hydraulic power lift. The gripper bar has a grab (3) which is used to grip the trailer tow-bar and which is operable by lateral rocking of a hand lever (4), the hand lever being also used for subsequently manipulating the gripped tow-bar to engage it with the tractor towing hitch (16). <IMAGE>
Patent GB-2026843-A (GB)
Title: Improvements in and relating to the preparation of animal feet, and particularly beef feet, for human consumption
IPC: A22B5/08
Filed: 1979-08-01
Abstract: A method of preparing beef feet for human consumption in which the feet are (1) inflated before rigor mortis has set in, (2) washed and tumbled together with a quantity of beef feet nails in clear water to remove hair and hair follicles, (3) singed to remove any remaining hair and hair follicles and (4) again washed and tumbled to remove the singed hair and hair follicles; and an apparatus for use in the method, the apparatus having an inclined V-shaped bed of rollers down which the feet can roll, the bed passing through an array of annularly disposed gas burners which direct heat onto the bed of rollers and singe the hair and hair follicles on the feet which pass through the array of burners.
Patent GB-2029129-A (GB)
Title: High-voltage electrical connector
IPC: H01R13/53
Filed: 1979-08-24
Abstract: In a two part high-voltage electrical connector, a first contract pin 30, in the plug assembly 12, is encased by a first dielectric sleeve 32 of relatively non-resilient material, and a second dielectric sleeve 34 of resilient material, is installed in the receptacle assembly 10 and is dimensioned to provide a continuous dielectric seal between the first dielectric sleeve 32 and the body 14 of the receptacle assembly 10, which is also of a dielectric material. The connector is coupled by inserting the first dielectric sleeve 32 of the plug assembly 12 into the second dielectric sleeve 34 of the receptacle assembly 10, thereby completing the continuous dielectric seal, but avoiding abrasive contact with the receptacle body 14 and minimizing the axial force needed to effect coupling and uncoupling. <IMAGE>
Patent GB-2038468-A (GB)
Title: Cooling and moistening dust- containing gases
IPC: F28C3/08
Filed: 1979-09-13
Abstract: To cool and moisten dust- containing gases, such as waste gases from furnaces and boilers, water is sprayed into the gas from a spray nozzle opening (2), an enveloping jet of compressed dust-free gas being formed around the water droplets issuing from the nozzle opening (2) by the supply of compressed air or gas to outer duct (6'), whereby the droplets can evaporate before coming into contact with the dust-containing gas, and whereby the tendency for sludge formation is reduced. A spraying agent such as steam or compressed gas may be supplied through an intermediate duct (3'), both gas supplies being caused to swirl by means (4, 8). The water spray nozzle may be of the return-flow type. <IMAGE>
Patent GB-2035767-A (GB)
Title: Microwave oven
IPC: H05B6/80
Filed: 1979-10-29
Abstract: A blower 48 introduces heated vapour to the microwave oven chamber 12 through a microwave screen 16 which prevents microwave energy entering the region where the vapour is heated. The blower 48 draws vapour out of chamber 12 through an apertured microwave screen 18 where it is oxidized by the combustion products of a gas burner 60 before being reintroduced to the chamber 12 through the screened inlet 16. Some of the vapour bleeds off through a vent 52 with cooling air blown by a blower 54. The burner operates in a slight negative pressure and burns air rich. <IMAGE>
Patent GB-2034588-A (GB)
Title: Number game
IPC: A63F1/02
Filed: 1979-11-01
Abstract: Game equipment intended for three or more players comprises a plurality of playing tokens defining a set, each token in the set being unique with regard to its selection of one of each of m (here 3) different attributes, there being n1, n2...nm (here 2, 3, 4) different possibilities for each attribute and at least n1 x n2 x...x nm (here 24) tokens in the set, n1, n2...nm being whole integers greater than one and m a whole integer greater than 2. The 24 cards have different mathematical sums derived from the three groups of numerical factors. The tokens may be printed on a board. The small cards shown are for indicating the number of common factors of that card and some other card. Figures 2 and 3 show other cards, the former having, if desired, multiplication signs as well, so that two different games can be played. <IMAGE>
Patent GB-2034633-A (GB)
Title: Machine frame for a circular saw
IPC: B23D47/02
Filed: 1979-11-06
Abstract: A machine frame for a circular saw (1) comprises a pair of parallel spaced plates (15, 21 and 43, 22) secured together by crosspieces (47 - 50). The plates have mutually opposed openings therethrough for feeding workpieces (3) transversely to the saw blade (1) carried between the frame plates on a slide (2). In a starting position of the slide (2), the saw blade (1) is protected from damage by a workpiece (3) either by being not exposed in the workpiece opening or by being protected by a workpiece stop (4) in the opening. The box-like frame is very rigid and not prone to bending and carries guide bars (42, 45) for the slide and clamps (13, 17) for the workpiece (3). The machine frame can be angled relative to the stop (4) to enable mitre cutting of the workpiece. <IMAGE>
Patent GB-2044539-A (GB)
Title: A mechanical switch for a printed circuit board
IPC: H01H1/58
Filed: 1980-02-08
Abstract: A mechanical switch for a printed circuit board 4 has a helical spring 1 surrounding a fixed contact 6 with one end 2 soldered into bore 5 in the board 4 whilst the other end 3 is bent to form a moving contact and engaged by a push button 7 which is guided in a guideway 8 and abuts against a stop 9 under pressure from the spring 1 when not depressed. Depression of the push-button brings the bent end 3 of the spring into contact with a contact layer 10 on the fixed contact 6, thereby closing the switch. In an alternative embodiment, the spring is spiral and the fixed contact is mounted in a recess in the board. <IMAGE>
Patent GB-2070735-A (GB)
Title: Shaft couplings for I C engine oil pumps
IPC: F01M1/02
Filed: 1980-02-29
Abstract: An improved drive coupling assembly between an oil pump shaft (11) and a distributor shaft of an internal combustion engine employing a known type of conventional drive connection comprising a tang on the distributor shaft engaging in a slot in the end of the oil pump shaft, wherein the improved assembly comprises a cylindrical connecting member (16) having two slots therein arranged in cruciform fashion, one slot (17a) being centrally disposed and the other slot (17b) being off-set, the tang (15) on the end of the distributor shaft (14) being engaged in one or the other of said slots depending upon whether the tang (15) is centrally disposed or off-set. <IMAGE>
Patent GB-2048622-A (GB)
Title: Current reducing device
IPC: G01V3/06
Filed: 1980-04-03
Abstract: A device for reducing the amplitude in a conductor (10) of an alternating current at a set frequency and phase has a current sensor (11) feeding an amplifier (12). The output of the amplifier (12) drives a current injector (13) to inject an opposing current of opposite phase to the sensed current to reduce it. The system may be tuned to the set frequency. In a cable tracing arrangement, the opposing current may be derived directly from the signal generator injecting the tracing current in the cable to be traced. Unwanted tracing currents in cables can thus be blocked. <IMAGE>
Patent GB-2053128-A (GB)
Title: Improvements in or relating to aerial conveyors
IPC: B66C21/04
Filed: 1980-05-16
Abstract: In an aerial conveyor of the kind having a carriage 4 mounted on an aerial rope 2 and rope-and-drum winding means extending to the carriage from which rope 25 extends for connection to the load, the range of the conveyor is extended and its operation is made less onerous by providing a rope-and-drum hoist 23 on the carriage and operatively connecting a pair of ropes 19,20 of the rope-and-drum winding means to the hoist drum so that the winding means are actuable to operate the hoist and also haul-back and haul-in the carriage 4. Moreover, the winding means take the form of a plurality of winding devices each comprising rotary drum means 11,12,13 frictionally engaging a coil of the rope to form with the coil a frictional drive capable of feeding the rope, and a winch engaging rope from the frictional drive to tighten the coil on to the drum means and collect and store the detensioned rope fed from the drum means. <IMAGE>
Patent GB-2051888-A (GB)
Title: Knotters
IPC: A01F15/14
Filed: 1980-06-16
Abstract: A knotter (24), particularly for agricultural balers, comprises a twine holder (63) operable to hold, during a knot-tying operation, a primary and a secondary portion of twine in which the knot is to be tied, and rotary knife means (130) operable to cut, at least one of said twine portions at a predetermined point in the operational cycle of the knotter and as said at least one twine portion is held by the twine holder, the knife means (130) being freely rotatable and mounted for rotation about an axis (140) offset from the path of movement of the twine portion or portions to be cut as the holder (63) rotates, whereby during the cutting operation the knife means (130) is rotated. <IMAGE>
Patent GB-2054275-A (GB)
Title: Antenna
IPC: H01Q13/18
Filed: 1980-07-08
Abstract: The antenna comprises an open-mouthed cylindrical cavity 1 defined by side 11 and bottom 12 walls. A conductive coating 5 on an insulative substrate 4 lies on the bottom wall 12. The coating 5 is spaced from the side wall 11 by an annular space 2. A coaxial line 7, 8 feeds microwave energy to the zone between the coating 5 and the wall 12. That zone acts as a radial transmission line which couples the coaxial line to the cavity. <IMAGE>
Patent GB-2054894-A (GB)
Title: Eye testing apparatus
IPC: A61B3/024
Filed: 1980-07-10
Abstract: Eye testing apparatus 10 comprises a control unit 12 to be viewed by the operator and a scanner unit 14 to be viewed by the patient, and may be used to detect blind spots in the visual field of an eye looking into the scanner unit through a lens 70. A display panel 24 on the control unit is provided with an array of light bulbs so that the operator can select a number of them to flash on and off, a corresponding number of light bulbs being flashed on and off on the scanner unit 14. The control unit 12 includes a memory which may be operated by the operator to store a record of the lights which the patient cannot see. These can then be recalled for double checking. A light pen can be used to flash on the light bulbs on the display panel individually or to change a selected pattern of illuminated light bulbs. <IMAGE>
Patent GB-2060491-A (GB)
Title: Security Document
IPC: B42D15/00
Filed: 1980-08-21
Abstract: In at least an area for handwriting, a document has a primary printing which will exhibit evidence of attempts at erasure by a solvent or chemical eradicator for the printing ink used and a secondary printing which is at least partially erasable by the use of mechanical erasing means such as an india rubber. Preferably, the secondary printing overlies the primary printing and the two printings are of different configurations so that each of them can be recognized.
Patent GB-2059377-A (GB)
Title: A method of pneumatically conveying fine-grain fuel to a gasifier
IPC: B65G53/66
Filed: 1980-09-22
Abstract: Fine-grain fuel (12) is fed from a supply tank (11), through a closure device (19) and into a conduit (17) which leads to a gasifier (10). Propellent gas is supplied through a pipe (13), and a pressure maintaining gas is supplied to the tank (11) through a conduit (15). Differential pressure between the tank (11) and the gasifier (10) is measured by a device (20) which acts on a controller (24) to determine the rate of flow of pressure maintaining gas through a valve (16). This enables the rate of feed of the fine-grain fuel through the conduit (17) to be maintained at a predetermined value which is linearly dependent upon the differential pressure between the tank (11) and the gasifier (10). <IMAGE>
Patent GB-2062699-A (GB)
Title: Improvements In Flyers for Spinning Wheels
IPC: D01H3/00
Filed: 1980-10-13
Abstract: A flyer assembly for a treadle spinning wheel has a two-armed flyer (24), having five yarn hooks (50) on each arm, mounted on a shaft journalled in two bearing posts (36,38), with a drive pulley (22) between the posts for a drive band from the spinning drive wheel; the yarn feed is not through the shaft as is conventional but is via a coiled wire guide means (52) mounted adjustably on a support near the open end of the flyer arms. The yarn can easily be fed from a fleece through the guide means (52), around a hook (50) and onto a bobbin (28) which is secured on the shaft between the arms. The hooks (50) are preferably spaced intermediate with each other on the two arms. A knob (30) screwed on the end of a rod (41) retains the bobbin on the shaft and can be pulled axially by a lever (44) and cord (46) so as to retard rotation of the bobbin. The assembly is mounted from its support (42) onto the bed of the spinning wheel. A bobbin holding frame may be mounted adjacent the flyer assembly. <IMAGE>
Patent GB-2063782-A (GB)
Title: Tyre building apparatus
IPC: B29D30/32
Filed: 1980-10-23
Abstract: A tyre building apparatus has two end drums 3, 3a disposed at respective ends of an intermediate drum 2 comprising a sleeve 39 pneumatically expandable to shape to toroidal form that portion of a tyre carcass which is disposed between the beads. The end drums 3, 3a include bead clamping members 48, 48a and ply turn-up bags 49, 49a, and together with the ends of the sleeve 39 are connected to carrier assemblies 7, 7a movable inwardly toward the centre of the apparatus, e.g. by screw and nut mechanism 28, 28a, during the aforementioned expanding of the sleeve 39. The bead clamping members 48, 48a are outwardly displaceable to clamp against the tyre beads by means of pivoted links 47, 47a controlled by annular pistons 19, 19a. The Fig. 2 apparatus is suitable for building a complete tyre blank in a single stage. A modified form of the apparatus, for use as a second-stage machine to complete the building of a tyre from a preformed first stage carcass that embodies two beads and the sidewall components of the tyre, is similar to that in Fig. 2 except that it includes stops for the carcass material axially outward of one bead clamping member and a substantially cylindrical telescoping supporting member for the expandable sleeve 39, and it does not have the ply turn-up bags 49, 49a. <IMAGE>
Patent GB-2088224-A (GB)
Title: Improvements in or Relating to Prompting Apparatus
IPC: H04N5/222
Filed: 1980-11-27
Abstract: The present invention concerns a prompting apparatus e.g. for a TV studio, comprising a keyboard (1) for entering an original text into a random access memory (5) under the control of a central processor unit (3). The unjustified text stored in random RAM (5) is fed to a random access memory (12) under the control of a memory mapped display unit and in accordance with an algorithm which de-hyphenates the text. The test to be displayed is read from the RAM (12) under the control of computer (2) via an address multiplexer (12) and a decoder circuit so as to partly address a read-only memory which contains the shapes of the characters to be displayed via a TV screen and a semi- transparent mirror. <IMAGE>
Patent GB-2092700-A (GB)
Title: Mobile arrangement for laying a continuous pipeline
IPC: F16L1/032
Filed: 1981-02-05
Abstract: A resistance welding apparatus 1 is supported by walls of a pipeline 4. The jib 3 of a pipe-laying means 2 carries a longitudinal structure 6 supporting a suspension 15 with rollers 16 for supporting the pipeline 4. The front end of the support structure 6 mounts a flash trimmer 7, and the rear end mounts an inductor 8 for thermal treatment of the weld. <IMAGE>
Patent GB-2074671-A (GB)
Title: Automatic gap adjustment for a mechanical drum brake
IPC: F16D65/56
Filed: 1981-03-24
Abstract: The brake includes back plate 1, brake shoes 5b, 5'b each having one end pivotally supported on the back plate, a cam member 9 interposed between the free ends of the shoes and adapted to be rotated by a brake arm 10 and a wedge adjuster 13 having cam surfaces abutting directly or indirectly (via cam collars 14, 14') upon the brake shoes, the adjuster 13 being disposed in the cam member 9 such that it is rotatable with the cam member and slidable in the direction extending at right angles to the expanding direction of the brake shoes, an adjusting rod 12 abutting upon the wedge adjuster 13 and threadedly connected to the cam member 9 an adjusting gear 15 engaged with said adjusting rod so that when rotated it extends threadedly the adjusting rod, so that the wedge adjuster is urged in the direction which causes expansion of the brake shoes. Various part arrangements to control rotation of gear 15 are disclosed. Various direct and indirect engagements of the shoes and the adjuster 13 are illustrated and described. A number of other modifications are disclosed. <IMAGE>
Patent GB-2075717-A (GB)
Title: Cleaning system with failure warning
IPC: G05B19/042
Filed: 1981-04-15
Abstract: A control device (3) controls a cleaning process carried out by cleaning apparatus (1), a manual-input panel (2) transmitting operation instructions to the control device. Failure detectors 11 to 14 at a plurality of locations in the cleaning apparatus inform the occurrence of a failure to the control device, an indicator (5, 5') indicating the location where the failure has occurred. In order to avoid troubles upon electric power failure, the cleaning system may have an operation step recorder (16) consisting of a plurality of latching relays (16a to 16c) for recording the current operation step of the cleaning apparatus. <IMAGE>