baber/WOPTO huggingface dataset:
Patent GB-1437497-A (GB)
Title: Expandable mandrel or chuck
IPC: B23B31/40
Filed: 1973-12-20
Abstract: 1437497 Expandable mandrel or roller L R DAMOUR 20 Dec 1973 [26 Dec 1972] 59092/73 Heading F2U An expandable mandrel or roller comprises a body 20 provided with ends 33 and an intermediate portion, an inflatable tube 30 disposed in a helical groove in the intermediate portion, longitudinally disposed gripping members 32 movable outwardly by the inflatable tube to the limit set by retaining members 34, and a fluid pressure connection 54 for filling and discharging the inflatable tube. The inflatable tube 30 may be made of rubber, one end being closed by a clamp associated with one of the holding down bolts 36 of the retaining members, the other end being inserted over a conical plug of the connection 54 which may be fitted with a tyre-type valve. The outer surfaces of the gripping members may be ribbed to provide a good grip on a surrounding cylinder to be driven. In a modification for a rewind roller, Figs. 12 to 14 (not shown), the gripping members (132) are made of polished aluminium or plastics to provide a smooth sliding action. When the gripping members are made of aluminium their outer surface may be coated with plastics or chemically treated.
Patent GB-599587-A (GB)
Abstract: 599,587. Electric control systems. LINDARS, H. Sept. 19, 1945, No. 24245. [Class 40 (i)] The relative time of on and off periods of a switch controlling current in an electrical circuit is controlled in dependence on a fluid pressure by an electrically self-balanced lever upon which the fluid pressure exerts a turning moment. A system for automatically controlling the feed of an underfeed stoker for a furnace in accordance with air flow to the furnace, involving an electrically-controlled self-balancing lever upon which air pressure corresponding to air flow exerts a turning moment as described in Specification 582,094, is modified by the introduction of a system similar to that described in Specification 585,373, [Group XXXV], for controlling the stoker feed motor by intermittent energization for time intervals of variable duration. In Fig. 1B, a potentiometer 65 supplied through a transformer 105 from an A.C. source 104, is adjusted by the lever self-balancing mechanism, Figs. 1 and 1A (not shown), to give a voltage output, proportional to air flow, which is applied to a current coil 59 of a wattmeter type eddy-current disc relay 61. Coil 59 opposes the action of a stronger current coil 60, also supplied through transformer 105, which rotates disc 61 clockwise until a stop 62 closes contacts 63 to operate relays 73 and 81 and thereby disconnect stoker motor 56. Coil 60 is disconnected at the same time so that disc 61 then rotates anti-clockwise until a contactor 71 driven by a synchronous motor 70 re-energizes relay 73 to operate motor 56 and cause stop 62 to approach contacts 63 once more. Motor 56 is thus energized intermittently during the periods that stop 62 approaches contacts 63 and, since the speed of disc 61 and, therefore, the duration of the above-mentioned periods is dependent on the intensity of energization of coil 59, fuel feed is dependent on air flow. Where necessary, graded potentiometers are used to ensure proportionality between air flow and the energization of coil 59. The fuel /air ratio maintained is manually adjustable by a ratio maintained is manually adjustable by a potentiometer 68 controlling the energization of coil 60, and a voltmeter 107 indicates the setting. Voltmeter 106 indicates air flow. Adjustable resistance 67 introduces a component of energization of coil 59 to allow for air leakage into the furnace.
Patent GB-1397330-A (GB)
Title: Housings for semiconductor  systems
IPC: H01L23/055
Filed: 1972-12-29
Abstract: 1397330 Housings for semi-conductor devices SIEMENS AG 29 Dec 1972 [22 March 1972] 60051/72 Heading H1K In a semi-conductor device housing comprising an insulating base 2, cover 4 and a spacing ring 3 and in which the base 2 has metallized patterns 5, 7, 14 on both surfaces electrically interconnected by metal-filled bores 10, the bores 10 terminate opposite the ring 3 outside the internal space defined by the base 2, cover 4 and ring 3. This ensures that the hermaticity of the internal space does not depend upon the sealing effect of the metal-filled bores 10. The metal filling the bores 10 may be solder and may either entirely fill the bores or merely line their walls.
Patent GB-1242610-A (GB)
Title: Improvements in or relating to an apparatus for the systematic correction and marking of teaching tests
Inventor: DUBOST PIERRE J
IPC: G09B3/08
Filed: 1968-12-18
Abstract: 1,242,610. Educational appliances. H. PERRET, and P. J. DUBOST. 18 Dec., 1968 [1 Feb., 1968], No. 60231/68. Heading G5G. Apparatus for use with multiple-choice tests enabling a user to determine whether his answer is correct, the marks scored by his answer, and the correct answer, if different from the chosen answer, comprises two pairs of discs DI, DII and DIII, DIV rotatable about pins 102a and 102b in a flat case 101 having windows 104, 107, 112 in the front face and windows 204, 206, 209 in the rear face. Discs DI and DII bear numerals 103 and 105 ranging from 00-99 and 0-9, respectively, whereby the number of a question being answered is displayed in window 104. Mark 106 on disc DII displayed at window 107 relates to the test in which the question being answered occurs. Disc DIII is set to display the number of the chosen answer in window 112. On the reverse side, disc DI carries green and red marks 201, 202, one of which is visible through an aperture 205 in disc DIII and a window 206 to indicate whether the chosen answer is correct or not. In addition a numeral 203 on disc DI is visible through window 204 and indicates the correct answer. Disc DIV is rotated to display a numeral 207 in window 206 corresponding to the correct answer whereby apertures 208 in the disc DIV uncover one of the letters A, B, C, D on the reverse side of disc DIII in the window 209. The letters B, C, D indicate that the chosen answer is progressively remote from the correct answer. A separate chart gives the marks scored by the letters A, B, C, D in each test denoted by the mark 106. The numerical and/or alphabetical markings may be replaced by geometrical or picture symbols or by braille.
Patent GB-1248410-A (GB)
Title: Improvements in or relating to derricks for ships
Inventor: BANKS WILLIAM L
IPC: B66C23/60
Filed: 1968-12-19
Abstract: 1,248,410. Ships' derricks. TESTING ASSOCIATES Inc. 19 Dec., 1968, No. 60523/68. Heading B8B. A derrick for a ship includes a hollow mast 10 and a fixed housing 11 with sides 11A, 11B carrying a pair of topping lift arms 20, 21 independently rotatable on supports 32 to which they are pivoted on supports 38. A boom 15 is pivoted on supports 14 on a ring 13 supported on rollers on a turntable 12 fixed to the mast 10. The boom 15 is lifted and hauled by a pair of topping lift winches 48A, 48B and a cable 46, see Fig. 9, passing from winch 48A over lead sheave 62A, up the mast 10, over sheaves 61A, 44A and 60A to single block 18A on arm 16A of a yoke 16 pivotally attached to the end of the boom 15. The cable 46 continues over sheaves 54A, 45A, 50A and down the mast 10 to the drum of a winch 65 for two or three turns, then back up the mast 10 and, symmetrically, back to the winch 48B. Operation of winches 48A, 48B clockwise takes up cable and lifts the boom 15. while anticlockwise rotation lowers the boom 15. Rotation of the winch 65, winches 48A, 48B being stationary, swings the boom 15. At 90 degrees from a central starting position, with the boom 15 raised, a null point is reached. In  order to continue past the null point for a further 90 degrees swing, arm 20 or 21 must be carried past the null point. To do this the supports 32 are formed as gears. A reversible motor 80 is provided to drive a shaft 81 to engage the gears through centrifugal clutches 82. The motor 80 is brought into action by mechanical switches (not shown) on the arms 20, 21 to carry them over into the adjacent sector, further switches (not shown), cutting the motor 80 after rotating the supports 32 through a selected arc. The boom 15 can thus be swung 180 degrees either way from a central starting position.
Patent GB-1361839-A (GB)
Title: Method of electrophotography
IPC: G03G15/10
Filed: 1971-12-29
Abstract: 1361839 Electro-photography FUJI PHOTO FILM CO Ltd 29 Dec 1971 [28 Dec 1970] 60554/71 Heading G2H A web of photo-conductive paper is coated with an insulative liquid before cutting, charging, exposing and developing with a liquid which is miscible with the precoating liquid. The precoating liquid may be cyclohexane, n-heptane, noctane, iso-octane, gasoline, kerosene, decalin or an isoparaffin such as Isopar (RTM). It may include a resin or vegetable or silicone oil. It may be applied by roller Figs. 1 and 3, (not shown), felt Fig.2, (not shown), or by immersion in a bath of liquid Fig. 4, (not shown). The coating may be 0.1-800 micron thick.
Patent GB-1411546-A (GB)
Title: Visual display of information
IPC: H04N9/43
Filed: 1971-12-31
Abstract: 1411546 Image analysis IMAGE ANALYSING COMPUTERS Ltd 18 Dec 1972 [31 Dec 1971] 61036/71 Heading G4D [Also in Division H4] In an image analysis system in which a video signal is compared with a reference voltage and constant amplitude pulses are generated from the resulting detected amplitude excursions to form so-called detected signal pulses and in which measurements are made on the detected signal pulses or pulses derived therefrom, e.g. the area, number, size, volume, proximity &c. of features in the analysed field may be measured, a monitoring arrangement is inclined in which the video signal is displayed in monochrome on a colour display CRT and the detected signal pulses or pulses derived therefrom are displayed in one or more distinctive colours (e.g. red, green and blue) on the colour display CRT. A coloured measurement grid may be included in the display, and alpha numeric information, e.g. corresponding to the measured size of a detected region, may be included in the display in different colours. Specifications 1,127,742, 1,264,804, 1,264,805, 1,264,807 and 1,323,556 are referred to.
Patent GB-655224-A (GB)
Abstract: 655,224. Protractors. O'CONNOR, H. Oct. 16, 1948, Nos. 26944/48 and 15739/49. [Class 97 (iii)] A protractor is provided with a radially movable arm 17, Fig. 3, which at its outer end 171 is formed with or carries an arcuate or circular surface 19, contacting the circular edge of the protractor, and having a radius equal to that of the circle inscribed within a space bounded by the curved surface of the protractor and any pair of tangents to the curved surface of the protractor which intersect at right angles, e.g. tangents 20, 201. In use the index 172 of the arm 17 is set to a scale reading corresponding to the angle to be measured, the circular surface 19 and the periphery of the protractor brought into tangential relationship with the straight edge 20 and a line drawn along the base edge of the protractor will then make the required angle with the straight edge. Preferably the circular surface 19 is constituted by a circular disc rotatably mounted on the end of the arm 17 and suitably spaced therefrom by packing means so that the disc 19 and the undersurface of the protractor are co-planar. In a modification the arm 17 moves between the protractor plate 16 and a semi-circular plate member having an arcuate slot through which projects a screw secured to the arm 17 and carrying a clamping knob. In another embodiment a circular protractor 23, Fig. 6, is provided with an arm 17 with the appropriately dimensioned circular disc 19 at its outer end and the protractor 23 has a plurality of radial slots 231 equidistantly spaced which are used as base lines. The arm 17 has a central aperture 178 enabling the slots to be viewed at all positions of the arm 17, and the arm 17 lies between the arcuate scale member 24 and the plate 23. The arm 17 is pivoted on an upturned flange 233 of the plate 23, the centre of the pivot being marked by the intersection of the lines on a transparent disc 234 and the arm may be clamped by means of an annulus 237 having a screw thread engaging the threaded internal aperture of the upturned flange 233.
Patent GB-690509-A (GB)
Abstract: 690,509. Workmen's time - recorders. STOCKALL, MARPLES, & CO., Ltd., and STOCKALL, J. J. Nov. 23, 1951 [Nov. 24, 1950], No. 28789/50. Class 106 (iv). A workmen's time-recorder comprising a movable card guide with a spring-loaded catch extending up near to the front lip of the card guide for appropriate engagement in and disengagement from notches in a stationary member, for example a plate, has the stationary member secured to a hinged front part of the case of the time-recorder. ' A guide for a record card comprises a funnel 10, leading into a slot 15, an integral neck-plate 11 and two side-pieces 12 with hooks 13 at their lower ends slidably engaging a rod 14 fixed in a bracket in the timerecorder. The side-pieces 12 are slotted from top to bottom to guide the edges of the cards. A rotatable rod 16 slides in brackets within the time-recorder and passes through lugs formed in the side-pieces 12 while two collars 17 held on the rod 16 by set-screws ensure that the card guide moves laterally with the rod 16. A catch 18 is secured to the rod 16 by a set-screw 19 and a wire spring 20, fixed by a screw 21 to one sidepiece 12, engages the screw 19 and tends to turn the upper part of the catch 18 away from the card guide. A cover-plate 22 rests on the plate 11 and both plates are cut out to permit free movement of the catch 18. A notched plate 23 is secured to a hinged front part (not shown) of the time-recorder case and when this part is secured in closed position the notched plate 23 occupies a suitable position for locating the card guide and a locking device prevents the catch 18 from being disengaged from the notch in which it has been set. The locking device may comprise a screw 24 whose head is ground away at one side and arranged so that only when turned as shown in Fig. 3, is there sufficient play for the catch 18 to be disengaged from a notch. The screw 24 may have a special socket in place of a conventional slot in its head.
Patent GB-2003206-A (GB)
Title: Improvements in or relating to the treatment of timber
IPC: B27K3/10
Filed: 1978-08-24
Abstract: Logs of timber are treated by surrounding one end with a pressure tight casing and filling this casing with a treatment liquid under pressure which then impregnates the log. The casing has two parts. A sleeve which fits over the end of the log, grips the log and is sealed there around, and a cap which engages over the sleeve and can be easily secured thereto with a pressure seal also being provided between the cap and the sleeve. A space is defined within the end of the cap around the end of the log. Suitable valves are provided for allowing entry of the treatment liquid and control of the pressure within the space. <IMAGE>
Patent GB-2004431-A (GB)
Title: Amplifier with field effect and bipolar transistors
IPC: H03G11/00
Filed: 1978-09-01
Abstract: A bipolar stage Q3, Q4 of an amplifier is fed in cascade by a FET Q5 of the enhancement type. In such applications as ionisation chamber smoke detectors with acoustic alarms, there is a risk of the collector current of the bipolar becoming excessive. The source of the FET is therefore earthed through a threshold conductor 14 and the source follower output developed thereacross is connected to the bipolar base via a current limiting resistor R1, which has a limiting effect on the collector current. The input is also taken to a second FET Q6 connected with its main current path in series with the main current path of the bipolar Q3, Q4. Threshold conductor 14 when non- conductive has an impedance which is high, but not too high compared with its environment. It may be comprised by diode-connected bipolars requiring multiples of VBE applied to initiate conduction, or by a Schottky diode circuit. <IMAGE>
Patent GB-2006665-A (GB)
Title: High frequency percussive rock drill
IPC: E21B1/38
Filed: 1978-10-03
Abstract: A rock drill system uses a high frequency, low energy per blow percussive drill device to drive a rock drill bit having a cylindrical sleeve and a breaking bar within the sleeve adjacent the cutting edge of the bit. The bit is operated without rotation and the low energy, high frequency enables operation without destroying the bit. A peening effect occurs around the outer circumference of the drilling end of the bit to create a slightly larger diameter than the diameter of the bit thereby enabling easy withdrawal from the hole. <IMAGE>
Patent GB-2015926-A (GB)
Title: Manifolding
IPC: B41L1/26
Filed: 1978-11-10
Abstract: A plurality of superposed record sheets, which have copying properties in whole or parts are glued together along their left-hand and right-hand edges 2, 3. The edge portions 6, 7 may be separated from the remainder of the manifolding unit 1 by tearing along perforations 4. Individual manifolding units are connected to form a web. Before or after separation from the web along perforations 4, 8 each manifolding unit may be folded along a central strip 5, in which the record sheets are glued together, to form a bound booklet. <IMAGE>
Patent GB-2011249-A (GB)
Title: Apparatus for metering the moisture of moist cleaning equipment for cleaning buildings
IPC: A47L13/59
Filed: 1978-12-13
Abstract: Apparatus enabling the moisture of moist cleaning appliances which are for use in cleaning buildings to be metered and controlled comprises a press part 6 operable to urges moist cleaning appliance against a discharge plate 5 apertured so that it enables moisture to pass therethrough. The appliance is connectable to a working vehicle. The press part may be manually operated either via a crank lever or from a handle 12 coupled to the press part via a ratchet gear arrangement 15, 18. <IMAGE>
Patent GB-2020252-A (GB)
Title: Vial and Closure
IPC: B65D51/18
Filed: 1979-01-23
Abstract: A vial or container 11 of the two- compartment type, for containing lyophilized medication in compartment 14 and a solvent in compartment 16 has a displaceable, moisture-proof plug 18 disposed between the two compartments. a closure structure 12 comprises a stopper 20 which is partially inserted into the neck 13 of the vial and is covered by a cap member 27 having a fastening portion 28, in gripping engagement with an annular side surface of the open end of the vial neck and a sleeve portion 32 of reduced diameter which snugly surrounds protruding portion 34 of the stopper and is disconnectible in frangible ridges 37 from portion 28 in order to move with the protruding stopper portion 34 into the neck of the bottle under manually applied pressure, Fig. 6 (not shown). A dust shield 36 is removably secured to the free end of the sleeve portion 32. The needle of a syringe can be inserted through the stopper to communicate with the interior of the vial. <IMAGE>
Patent GB-2017872-A (GB)
Title: A flow control valve
IPC: B67D1/14
Filed: 1979-03-21
Abstract: A flow control valve for dispensing beverages, e.g. beer, comprises a valve body (40) having upstream and downstream ends, an outer plunger assembly 60, 70 axially movable within the valve body (1), an inner plunger assembly 90, 100 coaxial with and projecting at least partly into the outer plunger assembly, high and low pressure passageways being defined by the plunger assemblies and the valve body, the low pressure passageway incorporating a short construction (105) to produce a sharp pressure drop. A seal (78) seals the passageway between the outer plunger assembly and the valve body 40 and a second seal 104 seals the passageway between the two plunger assemblies. Two rigidly connected cam members 122, 113, offset from the axis of rotation of a control handle 116, respectively serve to move both plunger assemblies to open one passageway and to move the inner plunger assembly relative to the outer assembly to open the other passageway. <IMAGE>
Patent GB-2019698-A (GB)
Title: Telephone number memory and indicator system
IPC: H04M1/57
Filed: 1979-03-29
Abstract: The invention relates to a telephone number memory and indicator system which allows a caller to leave his number when the person to whom he is calling is absent. The system includes an automatic answering system 10 which detects a ringing signal and intercepts the call after a predetermined time. On interception a proceed signal is generated by generator 11 which indicates to the caller, or to elements within his telephone, that the system is ready to receive his number data. This data when transmitted is detected by detectors 12, 14 within the system and stored in store 18 for future recall and display at 23. <IMAGE>
Patent GB-2019997-A (GB)
Title: Motor vehicle headlamp
IPC: B60Q1/08
Filed: 1979-04-26
Abstract: A motor vehicle headlamp, Fig. 2 is mounted in a fixing cage, Fig. 6, defining a seating for the headlamp and including securing means 26, 27 for the said headlamp, the cage being fixed on the vehicle body at three points 38, 44, 45 and means such as a threaded rod 40 being provided for adjusting the position of the cage in elevation and in azimuth. The headlamp is installed in the cage by simple latching to its seating. Adjacent cages may be interconnected by means of interfitting bosses such as 31, 33a, 33b and assembly rods 36. The headlamp reflector 15 may be tilted in its case in response to acceleration and deceleration by means of a pendulum system mounted on a bracket 6. A wiper motor 30 and drive shaft 46 are provided. <IMAGE>
Patent GB-2026016-A (GB)
Title: Radiation dosimeter
IPC: C09K11/02
Filed: 1979-05-08
Abstract: A radiation dosimeter comprises a thermoluminescent phosphor incorporated in matrix of polyethersulphone. The dosimeter is preferably a thin film formed by spreading a suspension of a powdered phosphor in a solution of polyethersulphone onto a flat surface. The solvent for the polyethersulphone is a mixture of a n-methyl-2-pyrrolidone and xylene in equal proportions. A thin, inert film of polyethersulphone can be cemented to one surface of the dosimeter so as to provide a skin dosimeter.
Patent GB-2027488-A (GB)
Title: Fuel atomization system
IPC: F02M69/00
Filed: 1979-08-03
Abstract: An intermittently actuated fuel injector 10, 11 is mounted on the throttle body 20 of an internal combustion engine 15 so as to spray atomized fuel into the throttle bores 26, 27 of a twin-choke carburettor against throttle blades 30, 31. The atomized fuel is mixed in, and further atomized by, the turbulent high velocity air flowing in the gap between the walls of the throttle bores 26, 27 and the edges of the throttle blades 30, 31. At wide open throttle position, part of the fuel plates on surface 29. It is then mixed and further atomized by the air which shears the plated fuel off a discontinuous edge of surface 29. Differences in the air/fuel ratio between cylinders are reduced by achieving injections at a predetermined advance before top dead center of the cylinders. The injectors may be co-axial with the throttle bores 26, 27 and inject into secondary venturis upstream of the throttle blades 30, 31. The injectors may provide all the fuel required by the engine or may function as power jets in a conventional float-chamber fed carburettor. <IMAGE>
Patent GB-2029242-A (GB)
Title: Ball puzzle game
IPC: A63F7/04
Filed: 1979-08-07
Abstract: A ball 19 is held captive within a structure 10 comprised of individual compartments 11 stacked one upon another and each having a central partition 12 containing apertures 13 at least one of which allows the ball to pass through. The game is played by players having alternate moves in opposite directions each striving to transfer the playing piece (19) to his allotted end. A sand timer having a smaller aperture 18, which may be adjustable, indicates the period of a player's turn. The timing means could be an object falling through a fluid or clockwork or electronic means. Rotation of parts of the device may be necessary to allow passage of the ball. <IMAGE>