baber/WOPTO huggingface dataset:
Patent GB-2036822-A (GB)
Title: Water Impervious Fabric
IPC: D06M101/16
Filed: 1979-12-10
Abstract: A water impervious fabric suitable for use as a lining material for liquid- containing structures is produced by coating or impregnating a woven or non-woven polyester fabric with a plasticised sulphur composition in a molten state, the plasticised sulphur composition containing from 50 to 98 weight percent of sulphur, based on the sulphur and plasticiser content of the composition. The sulphur composition advantageously contains an inorganic filler such as mica. The polyester fabric is preferably one formed from polyethylene terephthalate fibre.
Patent GB-2070189-A (GB)
Title: Pulley
IPC: F16H55/44
Filed: 1980-02-21
Abstract: A toothed pulley for use in a motor vehicle is economically produced from a pair of cup-shaped, mild steel flanges 1 and 2, and an externally toothed ring 3. The flanges 1 and 2 are nested together with the ring 3 between spaced apart outer portions thereof. The flanges 1 and 2 are crimped at 7 to secure the toothed ring 3 against rotation relative to the flanges 1 and 2. The inner portion of the flanges 1 and 2 are engaged with a rotary drive or drive member and are spot welded at 8 so as to be in facial engagement. <IMAGE>
Patent GB-2070586-A (GB)
Title: Derivatives of Proline or Pipecolic Acid
IPC: C07D211/60
Filed: 1980-02-29
Abstract: This invention is directed to compounds of the formula   <IMAGE>  or a physiologically acceptable salt thereof,  wherein  R is hydrogen or lower alkyl, R1 and R3 are independently selected from the group consisting of hydrogen, lower alkyl, lower alkylthio, -(CH2)n-SH, and halo substituted lower alkyl; R2 is hydrogen or lower alkyl provided that R2 is lower alkyl only when R1 is lower alkyl;  m is zero, one or two;  n is one, two or three;  p and q are each one or two provided that both are not two; and R4 is hydrogen, a hydrolyzably removable protecting group, a chemically removable protecting group, or provided that neither R1 nor R3 is -(CH2)n-SH,   <IMAGE> which are useful in the treatment of hypertension.
Patent GB-2050595-A (GB)
Title: Fluid flow control damper casing
IPC: F24F13/20
Filed: 1980-05-15
Abstract: This invention covers the method of construction of a casing (1) suitable for insertion into a duct or piping system, with primary reference to ventilation or such associated installations, such that it becomes a permanent component of that system, but allows for the insertion and removal of a fluid flow control damper (2) as and when required, particularly for inspection and maintenance purposes. The invention also describes how a damper of one height can be used with casings associated with ducts of different heights within a range which still ensures that the only obstruction to the fluid flow with the control damper blades in the fully open position is that offered by the thickness of the blades, and how the damper is retained in the correct position relative to the duct irrespective of the plane of installation. <IMAGE>
Patent GB-2079731-A (GB)
Title: Cap for gas cylinder
IPC: F17C13/06
Filed: 1980-05-21
Abstract: A cap 20 for a gas cylinder is of flexible plastics material. It has a top 28 and an internal spigot 30 depending from the top 30. It also has a body comprising lower and upper portions 22 and 26 of hexagonal cross-section, and an intermediate portion 34 that is readily severable. A slot 24 is formed in a wall of the lower portion 22. The cap makes a push fit with the body of a cylinder valve by virtue of the spigot being received in an internal vertical passage through such body. The slot 24 receives a gland nut (or other projection from the valve body) which acts as a stop preventing rotation of the cap relative to the valve body. The cap may be removed from cylinder by tearing the lower portion 22 away from the rest of the cap along the circumference of the portion 34, thereby enabling the top of the cap to be rotated to remove the spines 32 from the passage in the valve body. Fitting full cylinders with such caps enables them to be readily distinguished from empty ones. <IMAGE>
Patent GB-2053136-A (GB)
Title: Improvements in or relating to systems for controlling the lowering of top cutters for silage
IPC: A01F25/20
Filed: 1980-06-16
Abstract: This invention relates to control for a top extraction cutter for feedstuff silos 1 of the kind in which the cutter 3 is suspended from cables 7 and is vertically displaceable out of engagement with the silo contents 2 by lifting as soon as a maximum preset load limiting value of the motor driving said cutter 3 is exceeded, whereupon the cutter is automatically lowered on to the silo contents again. According to the invention, means 9 are provided for cyclically lowering the cutter 3, the working cycle periods consisting of a lowering displacement and a subsequent pause, unless overidden by overload of the cutter motor. <IMAGE>
Patent GB-2079452-A (GB)
Title: Electrothermal Actuators
IPC: G05D23/19
Filed: 1980-07-01
Abstract: Electrothermal actuators use as their operative elements thermostat capsules such as described in our UK Patent Application No. 7915085 published serial number 2048473A. Such a capsule has a flat stainless can closed by a stiff corrugated stainless steel diaphragm. The can has a filling of a suitable liquid such as methanol or a fluorocarbon. In the present arrangement such a capsule (1,2,3) is provided with a heater (4) and a thermal sensor (5) such as a thermistor permanently attached to its base plate. The heater enables the capsule to be heated to a level appropriate to the function to be controlled, and the sensor provides a feedback signal as to the amount of deflection of the capsule. In another embodiment the heater (11) and sensor (12) are actually inside the can, the leads to them being brought out via a glass/metal seal (13). This is a more efficient arrangement. The use of such capsules to drive a controlled device such as a radiator valve is described. <IMAGE>
Patent GB-2054383-A (GB)
Title: Plugs for the medullary canal of a bone
IPC: A61L27/58
Filed: 1980-07-18
Abstract: An implant 22, e.g. for locating a hip prosthesis, is placed in the medullary canal 18 of a bone 20 (e.g. the femur) and secured by pressurised cement 24. A push-fit plug 10 prevents cement penetrating down the canal. The plug can be biodegradable so that in time it dissolves away and does not modify the flexural rigidity of the cement/bone system and the risk of fractures occurring at the level of the plug is reduced. Additionally or alternatively, the outwardly facing end portion 16 of the plug may be generally conical so that the thickness of the cement increases gradually and the flexural rigidity likewise changes gradually. <IMAGE>
Patent GB-2094385-A (GB)
Title: Exhaust clamp
IPC: F16L23/08
Filed: 1981-03-05
Abstract: A pipe clamp particularly for fixing together two parts of a vehicle exhaust system comprises two C- shaped parts 10, 12 inherently provided with a Vee cross section groove (Fig. 2) which can receive the flanged ends of the pipes and draw them together when the clamp is tightened. The two-C-shaped parts are connected together by a tongue and slot hinge 18, 22 at one end and by a nut and bolt 30, 32 at the other end. <IMAGE>
Patent GB-2099741-A (GB)
Title: Hand riveting tool
IPC: B21J15/04
Filed: 1981-06-09
Abstract: A tool for setting blind rivets has a fixed handle (12), a movable handle (13) and an operating bar pivotally supported by the main body of the riveter with one end pivoted to a chuck for gripping the mandrel and the other end serving as an engaging portion (30). A pusher (36) is pivoted to the movable handle and has grooved portions engageable with the engaging portion. A bearing member (40) pivoted to the main body is formed with bearing grooves positioned alongside the grooved portions in corresponding relation thereto and engageable with the engaging portion. When the movable handle is repeatedly operated, the pusher successively moves the engaging portion in engagement with one grooved portion after another, to engage the engaging portion correspondingly in one bearing groove after another, and move the chuck by the resulting movement of the operating bar for setting the rivet. <IMAGE>
Patent GB-2117737-A (GB)
Title: Intermittent feeding using reciprocating clamps
Inventor: WICKHAM DAVID JOHN
IPC: B65H20/18
Filed: 1981-07-18
Abstract: Web is indexed through a work area by a pair of reciprocating clamps, the leading pair of clamps including a roller (b) as the lower clamp which rotates in a direction to keep the material taut during the return stroke of the mechanism. The rotational speed is such that the surface velocity is greater than the linear velocity of the reciprocating mechanism to which the clamps are attached, thereby keeping the web taut. <IMAGE>
Patent GB-2095954-A (GB)
Title: Compander system
IPC: H03G7/00
Filed: 1981-11-18
Abstract: A compander system comprises an improved gain control module 10 and an improved detector 12 which are adapted to be manufactured in integrated circuit form. The gain control module 10 includes an op-amp with two feedback paths for respective (polarity) representations of the input signal and each includes a log circuit, provision for adding a gain control signal, and an antilog circuit, a bias current independent of temperature being caused to pass through the log and antilog circuits. The detector 12 includes a rectifying op-amp having respective current conductor paths for different representations of its input signal connecting the input and output of the op-amp, a signal generator producing a signal responsive to the passage of current through one such path and of a form which is an inverted version of the input signal, a log circuit and a low pass filter connecting the output of the rectifying op-amp with the gain control module, and a second bias being applied to the current conduction paths and to the signal generator to reduce the slow rate of the rectifying op-amp. <IMAGE>
Patent GB-2089929-A (GB)
Title: Feed device having a threaded spindle and threaded members axially movable by the spindle
IPC: F16H25/24
Filed: 1981-12-03
Abstract: A feed device has a plurality of axially telescopically extensible arms, each of which is drivingly connected to a respective threaded nut member in turn drivable by a single rotatable threaded spindle (5). To accommodate possible variation in the spacing of adjacent nut members being driven on the spindle, a threaded portion (G1, G3) at each end of the spindle has one or more flanks (22', 23') of the thread set back from the flank or flanks (22, 23) of the basic thread by an amount which decreases towards the middle of the length of the spindle, the reduced length flanks merging into the basic length flanks. <IMAGE>
Patent GB-2107178-A (GB)
Title: Chairs
Inventor: MOLINARI PIER LUIGI
IPC: A47C3/026
Filed: 1982-01-27
Abstract: A chair, for example an office arm-chair, comprises a frame of metal section with bands or strips 40, 42 extending between the two sides of the frame, and a removable covering having pockets at the ends thereof. The frame includes a first bent section element 12, which forms both sides 16 of an arm-chair back, arm rest parts 18 and a first base crosspiece 22, and a second bent section element 14 which forms the seat sides and inclines to a second base crosspiece 30; the two elements are joined to each other at an intermediate position 32 thereof and also by a gusset plate 34 at the bottom crosspieces thereof; the gusset plate provides for the mounting of a base or support. <IMAGE>
Patent GB-2099617-A (GB)
Title: Method and means for processing and packaging digital data
IPC: G11C27/00
Filed: 1982-04-05
Abstract: A digital data memory device converts digital data bytes into analogue voltages which are then mapped to time-dependent base reference quantities also in analogue form derived from a digital base reference counter 24. The mapped analogue data signals from successive data units are then deposited on a capacitor storage element 12 to build up a charge packet of compressed data and parameters relating to the stored data are held in digital form in parameter registers 62. The system is dynamically organised under programmed control of a microcontroller unit 14. Mapping of the data involves time domains and unusually high degrees of compression and storage capacity are achieved. <IMAGE>
Patent GB-2122557-A (GB)
Title: Human powered cycle
Inventor: CHEN HENRY TAI-HENG
IPC: B62K5/05
Filed: 1982-06-22
Abstract: This invention relates to a cycling sport equipment, namely roller shuttle comprising a seated frame with a chain-driven rear wheel and two front rolling wheels. It is adapted to be used in a small space, and can be operated easily and safely. A pedal driven cycle has a chain driven rear wheel, two front rolling wheels, and a brake to stop the rear wheel; the cycle is steered by body movements of the rider to shift his weight. <IMAGE>
Patent GB-2108439-A (GB)
Title: Pneumatic vehicle tyre
Inventor: THIELEMANN KLAUS
IPC: B60C9/22
Filed: 1982-07-21
Abstract: A pneumatic vehicle tyre includes crown reinforcing belt comprising two or more plies (6) of parallel cords inclined to the circumferential direction of the tyre, the cords (7) of at least one ply (6) being made of steel or a similarly inextensible material and being subdivided by discontinuities (8) into aligned portions (9), for increasing puncturing resistance. Each cord (7) may be interrupted three times between the ply edges, and the discontinuities may be provided only in a central zone of the belt. The cords (7) may be in groups, of e.g. four, with discontinuities at the same points, but with the discontinuities staggered from group to group. <IMAGE>
Patent GB-2105881-A (GB)
Title: Feedback controlled hydraulic valve system
Inventor: HAMMOND JOHN ANTHONY GORDON
IPC: F15B13/16
Filed: 1982-08-20
Abstract: A hydraulic system in which a pilot operated four-way main valve (11) controls the direction and rate of fluid flow to a hydraulic load (13), includes a flow sensor (15) which is capable of operating bidirectionally and may therefore be located in one of the service lines (25, 26) from the main valve (11) to the load (13). The main components of the flow sensor are a variable or fixed aperture flow sensing orifice (52, 53), and a pressure transducer (18) to which the pressure differential developed across the orifice is applied and which converts the pressure differential into an electric negative feedback signal. This electric feedback signal is compared in an electronic circuit (17) with a demand signal, and a corresponding command signal sets the pilot valve (12) which controls the main valve (11). The pressure transducer (18) in the described embodiment is a cantilever beam pressure transducer (36), acted on by the inner ends of a pair of diameter-matched sliding pins (34, 35), across the outer ends of which the pressure differential is applied. <IMAGE>
Patent GB-2105896-A (GB)
Title: Display unit
Inventor: BLOOM HAROLD
IPC: G09F13/04
Filed: 1982-07-14
Abstract: A display unit comprises a screen 60 or 70 which is retained at its top and bottom edges by two identical wall members 11, 12 of extruded translucent plastics material. The unit contains fluorescent tubes 18 and is mounted on a rear wall by means of internal brackets 13. Information is displayed on a bowed screen 60, for example a poster may be inserted between the layers 62, 63 forming the screen. A flat screen 70 may alternatively be used. Further strips 61 may also carry displays which are back lit by the lights 18. The unit may be located at a small spacing from the rear wall so that light escaping around the edges produces a halo effect to provide a source of additional light in a room in which the unit is installed. <IMAGE>
Patent GB-2111929-A (GB)
Title: High-speed amphibious aircraft
Inventor: WHITEHEAD BERNARD
IPC: B64C39/10
Filed: 1982-09-16
Abstract: In an aircraft, preferably an all- wing amphibious aircraft, in which the wing can be progressively slowed from a maximum aspect ratio position for take-off, landing, and low speed flight, to a minimum aspect ratio position for high-speed flight, the engines are mounted on a centrally located turntable so that as the wing is slowed the thrust line can be maintained in alignment with the direction of flight. The engines, which can also be tilted relative to the turntable, may be of jet or propeller type. <IMAGE>
Patent GB-2131155-A (GB)
Title: Solar heating
Inventor: MAHDJURI SABET FARAMARZ
IPC: F24S10/95
Filed: 1982-11-26
Abstract: A solar heating system comprises a water storage tank (7) and an array of solar collectors (1), each comprising an elongate, evacuated, substantially cylindrical, transparent envelope and an absorber plate (2). Each absorber plate is thermally conductively connected to the evaporation zone of a heat pipe (3) which extends through the end of the transparent envelope so that its condenser zone is situated in the tank. <IMAGE>
Patent GB-2120197-A (GB)
Title: Bottle packages
Inventor: KLYGIS MINDAUGAS JULIUS
IPC: B65D71/50
Filed: 1982-12-06
Abstract: A highly stretched tubular sleeve 14 of resilient, elastic, biaxially oriented plastics material is positioned about an array of two or more bottles 12. The wall thickness of the sleeve is less than 0.004 inch (0.10 mm) and the unstretched circumferential dimension of the sleeve is at least 20% smaller than the maximum circumferential dimension of the array. The sleeve in unstretched condition has a distorted legend printed thereon, the distortion being removed when the sleeve is in position about the array of bottles. <IMAGE>
Patent GB-2115460-A (GB)
Title: Rotary drilling bits
Inventor: GRAINGER ALFRED JAMES
IPC: E21B10/22
Filed: 1983-02-18
Abstract: A rotary drilling drag bit for drilling from the surface deep holes in sub-surface formations e.g. for oil has a body (4) with a diameter of at least 100 mm and having a bore for passage of drilling fluid to its face (3) and rotatable cutting elements (6) having a cutting face (9) comprising an agglomerate of diamond particles so mounted on the body (4) that they are free to rotate in use. The cutting elements are of long life and highly effective in drilling. <IMAGE>
Patent GB-2125607-A (GB)
Title: Apparatus for use with gramophone turntable
Inventor: EKLUND RUNE
IPC: G11B17/028
Filed: 1983-05-11
Abstract: A device for use with a grammophone turntable comprises a thrust member 2 and means for releasable engagement with a spindle including jaws 29 at the end of a split bushing 25. An annular pressure plate 3 is screwthreaded to the engagement means and can be tightened to bear on an underlying disc to maintain it flat against the turntable mat. The engagement means are insufficient to hold the device to the spindle when a pressure greater than a predetermined amount is brought to bear on the underlying record. This amount is chosen to correspond to the optimum applied pressure. An alternative embodiment is described w r-t. Figure 4 (not shown). <IMAGE>
Patent GB-2140900-A (GB)
Title: Burner apparatus for smelting furnace
Inventor: KAI TATSUYA
IPC: F27D99/00
Filed: 1983-06-03
Abstract: A burner apparatus for a smelting furnace comprising a burner body 18 having a tip insertable into and withdrawable from a burner inserting bore 15 in the wall of the furnace, a seal bar 21 insertable into and withdrawable from the bore for closing the bore, shifting means 23 for alternatively positioning the tip or the seal bar in alignment with the bore, and means 20 for driving the tip and the seal bar into and out of the bore. When the burner is not used for auxiliary combustion, the seal bar is inserted into the bore to prevent the bore and the burner nozzles from clogging with splashes of molten metal and slag. <IMAGE>
Patent GB-2128777-A (GB)
Title: Two wire heater regulator control circuit
Inventor: CROSS MICHAEL
IPC: G05D23/24
Filed: 1983-09-30
Abstract: A continuous excitation voltage 9 and a power voltage 5 can be simultaneously present at the heater coil RHC. Temperature of the heater is established by continuous excitation and sensing independent of the occurrence of power for heating. A short circuit protection circuit 17 is responsive to an electrical short in the heater coil (which significantly changes its resistance with temperature) and disables the power voltage. <IMAGE>
Patent GB-2153046-A (GB)
Title: Temperature triggered fluid isolator
Inventor: ROBERTSON ATHOLL DUNCAN FAIRLE
IPC: F16K31/68
Filed: 1984-01-14
Abstract: The invention consists of a valve plunger with attached spindle both of dimensions suitable for the casing into which the whole device has to fit. The body of the spindle is hollowed out axially and contains a fixed spring of sufficient power to overcome the force of the fluid to be isolated when the said spring has expanded to act upon the casing and the rear of the plunger. The void space in the spindle is fitted with a suitable substance such as water which expands both on heating and on solidification. A weak bridge is made circumferentially around the spindle near the far end from the plunger. Expansion of the internally contained substance due to excessive rise or fall in temperature causes fracture of the weak area and irreversible action of the spring so as to interrupt fluid flow. <IMAGE>
Patent GB-2137801-A (GB)
Title: Safe non-venting electrolyte for non-aqueous electrochemical cells
Inventor: BOWDEN WILLIAM LEE
IPC: H01M6/16
Filed: 1984-03-09
Abstract: A safe non-venting electrolyte for use in non-aqueous cells such as Li/SO2 cells comprises LiCl in propylene carbonate.
Patent GB-2157184-A (GB)
Title: Dartboard bullseye ring
Inventor: BLUCK JOHN EDWARD GEORGE
IPC: F41J3/00
Filed: 1984-04-12
Abstract: A member for defining the bullseye scoring area of a dartboard comprises a steel ring 1 with integral fixing legs 2. The legs are pressed into the board to hold the ring in position, the ring standing slightly proud of the board. The outward facing circular surface of the ring is bevelled so that this surface tapers outwardly of the board to a circular apex 5 and thus presents only a small perpendicular obstructional area to an oncoming dart. <IMAGE>
Patent GB-2143088-A (GB)
Title: A pressure responsive switch arrangement
Inventor: HAMSCHER MANFRED
IPC: H01H35/26
Filed: 1984-05-25
Abstract: In a reduced pressure or vacuum responsive switch arrangement for an internal combustion engine having a variable source of reduced pressure, at least two vacuum diaphragm switches (2) are provided which have virtually identical constructions and some components in common. The arrangement comprises a common vacuum chamber (3) with a common vacuum or input connection (4) for connection to the source of reduced pressure, a common diaphragm (5) disposed between two housing halves (11, 12), but separate microswitches (16) with separate vacuum diaphragm adjusting members (15). This results in a small number of components being needed and the switch arrangement having a compact overall arrangement whilst being very versatile in its use. <IMAGE>
Patent GB-2160454-A (GB)
Title: Improvements in the manufacture of castings
Inventor: DAVIS TERENCE WILLIAM
IPC: B22C9/12
Filed: 1984-06-20
Abstract: Shrinkage in a casting is reduced or modified by introducing the metal or alloy under pressure into a frozen sand mould. Solidification begins quickly which results in more even distribution of porosity in the casting, and because the need is avoided for metal or alloy to be fed to the casting as it solidifies defects and distortion are reduced. The method is particularly advantageous applied to metals or alloys cast in the temperature range 400 DEG -800 DEG ; it may be applied to zinc-aluminium alloys, and to the manufacture of castings having fibre reinforcement.