baber/WOPTO huggingface dataset:
Patent GB-652193-A (GB)
Abstract: 652,193. Protective cut-out arrangements. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Oct. 22, 1948. No. 27528. Convention date, Oct. 30, 1947. Drawings to Specification. [Class 38(v)] A system for protecting a three-phase transmission line, such as that described in Specification 651,998 in which under fault conditions carrier currents are used to effect a comparison of the phase angles of the line currents at the two ends of the protected line or section and in which the protective equipment at each end includes fault detecting means, a trip relay, a transmitter, a receiver and means for applying square topped operating impulses to the relay and square topped controlling impulses to the transmitter on alternate half cycles, has means to delay the building-up of the operating impulses in the relay without substantially delaying their decay, so that the operating impulses may be matched with the received restraining impulses. These delayed build-up means permit the use of two carrier frequencies for the protective equipments at the two ends without the risk of incorrect operation due to the slow build-up of the received impulses owing to the inability of the tuned receiving circuit to pass the higher harmonics. They are described in their application to the arrangement of the above Specification and each comprise an inductance and capacitor forming a lowpass filter which is shunted by a half-wave rectifier and connected between the impulse producing means and the relay, the filter delaying the building up of the impulses, whilst the rectifier is so connected that it allows the rapid discharge of the filter capacitor so that the decay of the impulses is not delayed.
Patent GB-663771-A (GB)
Abstract: 663,771. Textile drafting heads. SANDELIN, O. E. Sept. 21, 1948 [Nov. 1, 1947] No. 24736/48. Class 120(ii) A textile drafting head, including an endless fibre supporting means, such as a belt, located between pairs of drafting rollers, has a region of the fibre supporting means pervious to air and a suction device adapted to suck air through the region to hold fibres undergoing drafting in firm engagement with the supporting means. The suction device may be a box 9 connected to a suction pump and which forms a guide for the belt 8 having a pervious region 10 above a slot, or line of perforations in the box 9. Alternatively, the box 9 may be completely open at the top and the belt 8 may be pervious to air over its whole width. Instead of a belt, a drum pervious to air at least within the fibre contacting region may be used.
Patent GB-708724-A (GB)
IPC: G01B5/20
Abstract: 708,724. Gauging departure from standard form. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 13, 1952 [March 14, 1951], No. 6203/51. Class 106 (2) In a device for comparing the profile of a workpiece with that of a master pattern comprising a tracer which can touch the surface of the master pattern, a measuring stylus for touching the workpiece and means tending to tie tracer and stylus together by permitting relative movement between them, which movement is measured and preferably recorded, the master pattern and workpiece are held stationary, and a carrier for the tracer is driven around a determined path corresponding approximately with the shape of the master pattern, the tracer being urged by resilient means to move relatively to the carrier towards the master pattern in a direction always approximately normal to its surface. In the device shown, for comparing a turbine blade T with a master blade M, Fig. 1, the blades are mounted in vices in a holder 2 vertically adjustable by a handwheel 3, and are contacted by rollers 36, 14 carried by stems 35, 13 respectively, which are suspended from corresponding points of a pantograph linkwork 7-12, Fig. 4, pivotally mounted on fixed pillars 4, 5. The pantograph can give a scale reduction if required. The end of the stem 13 engages a slot in a link 22, Fig. 2, and is urged by a spring 23 so as to press the roller 14 against the blade M. The link 22 is pivoted on a lever 20 by a pin 21 which connects the link to an arm 26 having a pin engaging a slot in a link 27 which is driven through a pin- and-slot linkwork and friction reduction gearing 29 by an electric motor 17, Fig. 1, mounted, together with linkwork supports such as 28, on a fixed pillar 6. The drive is such that the roller 14 moves around the blade at a substantially constant speed. The lever 20 moves around pivot P between adjustable stops 19a, 19b on a bracket 18 whereby the link 22 makes different parts of its movement about different centres of rotation P and 21 so that its path approximates to the profile of the blade. The motor 17 or another motor may be used, in place of handwheel 3, for automatically raising or lowering, through a disengageable clutch, the holder 2, for comparing different sections along the length of the blades. The roller 36, Figs. 1 and 5, is larger than the roller 14 and is rotatable on a mandrel 37 suspended by three wires 40 from a member 39 secured to the stems 35 whereby the roller 36 can be deflected in any radial direction. Such radial deflection causes a thrust to be applied through a conical cap 37b and spring-loaded ball 42 to a rod 45 which actuates a gauge 46 which may include means for recording on a chart the deviations of the blade T from the master and/or a dial indicator and electric contacts which operate one of three differently coloured lamps according to whether the dimensions of the blade T lie within the required tolerances or not.
Patent GB-731262-A (GB)
Abstract: 731,262. Piles. LEE, D. H. March 28, 1952, No. 7976/52. Class 68(2). A pre-stressable reinforced concrete pile has the head portion 3 provided with one or more deep recesses 13 parallel to the pile axis each of which terminates in a transverse floor 16 to provide a shoulder against which the end anchorage means 15 of a prestressing member 9 can bear, the axial depth of the or each recess being sufficient to accommodate the anchorage means 15 and the projecting end 14 of member 9 below the head surface of the pile and the zone which may deform under driving blows. As shown the pile comprises the head portion 3, intermediate portion 2 and shoe section 1, the portion 2 being hollow and receiving cylindrical portions 10 formed on the head and shoe. Metal ties 11 may secure the portions together by embedding in transverse portions 12 within the hollow section 2. The pile portions are of square cross section with one pre-stressing member 9, such as a steel bar, in each corner, the lower ends being either threaded into the metal driving shoe or point 5 or, as shown, are secured by a nut 20 abutting a thrust plate 21 embedded in the concrete and spaced from the surface 22 of section 1 by a ferrule 23. The upper ends of each bar 9 is tensioned by a nut and washer 15 bearing against an apertured thrust plate 17 embedded in the floor 16 and spaced from the lower face 25 of section 3 by a ferrule 24. In a modification each bar is in threaded engagement with its corresponding plate 71 and the stressing up is done from the shoe end of the pile, the nuts 20 and plate 21 being readily accessible.
Patent GB-2024650-A (GB)
Title: Control installations for gas transmission or distribution systems
IPC: F17D1/04
Filed: 1978-07-07
Abstract: Apparatus for controlling the pressure and/or flow of gas in a pipeline comprises a housing enclosing a cyclone 5, a filter 10, pressure regulators 11 and an emergency closure valve 12 arranged in series between inlet and outlet connections to a pipeline. Housing 1 can be located below ground and when cover 14 is removed items 10,11, 12 may be withdrawn as a complete unit for maintenance or other purposes. <IMAGE>
Patent GB-2002129-A (GB)
Title: Apparatus for testing semiconductor memories
IPC: G11C16/28
Filed: 1978-07-25
Abstract: In apparatus for testing memories in which the memory cells comprise variable threshold semiconductor devices, a threshold voltage of a memory cell is applied to one side of a bistable latch circuit and a reference voltage is applied to the other side, the reference voltage is incremented until the latch circuit latches in the opposite sense, thereby giving a measure of the threshold voltage. The apparatus can alternatively be operated with two threshold voltages from a single memory cell applied to the two sides of the latch so that the latch reads out the contents of the cell. The latch outputs may be cross-coupled to the input circuits by transistor circuits to increase the voltage separation of the latch circuit and reduce its power consumption. The apparatus can be fabricated on a single integrated chip and may be fabricated on the same chip as a memory array.
Patent GB-2002898-A (GB)
Title: Optoelectronic tachometer
IPC: G01P3/48
Filed: 1978-08-08
Abstract: The tachometer comprises an optoelectronic pulse generator for generating primary pulses whose frequency is proportional to the speed of a machine shaft. In order to convert these pulses to an analogue signal proportional to speed, means 8 are provided for converting the primary pulses into secondary pulses whose width and height remain substantially unaltered as the frequency of the primary pulses is varied, and a filter 12 is provided for generating the analogue signal from the secondary pulses. Preferably also a frequency changer 3 is provided for changing the frequency of the primary pulses when within certain frequency ranges. In one embodiment this frequency change is compensated for by amplifying 11 the secondary pulses by an appropriate factor. In another embodiment the frequency change is compensated for by supplying pulses whose width depends on the frequency change undergone by the corresponding primary pulses. In this manner it is possible to detect a substantially greater speed range than with a conventional electromagnetic tachogenerator. <IMAGE>
Patent GB-2003411-A (GB)
Title: Swaging mandrel
IPC: B21J13/00
Filed: 1978-08-08
Abstract: A swaging mandrel comprises a hollow mandrel body, through which a cooling fluid flows, a tubular mandrel rod 7, through which conduits for supplying and discharging the cooling fluid extend, and a core member 12, which defines cooling passages 11 in which the cooling fluid is conducted from the free end of the mandrel along the inside surface of the mandrel body. The mandrel body comprises an outer shell 9 consisting of a material which has a high strength at elevated temperature. The shell surrounds a carrying sleeve 10 made of tool steel or materials having similar strength properties. A water-air mixture is used as cooling fluid. Such mandrel has a high resistance to wear at surface temperatures up to about 900 DEG C and can assume a high outside temperature so that the temperature of the workpiece is not substantially decreased. The mandrel can be subjected to a controlled cooling within a large range. <IMAGE>
Patent GB-2017081-A (GB)
Title: Thioalkanoylalkanoic acid compounds
IPC: A61K31/22
Filed: 1978-12-22
Abstract: Thioalkanoylalkanoic acid compounds and salts thereof having the formula   <IMAGE>  wherein R1, R2, R3 and R4 each is hydrogen or lower alkyl;  R5 is hydrogen, lower alkanoyl, benzoyl or   <IMAGE> A and B each is hydrogen or join together as a polymethylene chain -(CH2)n- to complete a 4-, 5- or 6- membered cycloalkyl group, and  m is 0 or 1, are angiotensin converting enzyme inhibitors and are useful as hypotensive agents.
Patent GB-786915-A (GB)
Abstract: 786,915. Covering cores. SPECIALTIES DEVELOPMENT CORPORATION. Aug. 8, 1955 [Nov. 24, 1954], No. 22758/55. Class 109 [Also in Group XXVII] Hollow articles such as cylinders, spheres, or pipes for storing or conveying fluid under pressure are formed by passing a plurality of strands S of yarn through a resin bath 26 while maintaining the strands out of contact with each other, grouping the resin-impregnated strands together at 32, winding them on to 'a former R and heating to cure the resin, the former R being retained as a liner for the completed article. The yarn is preferably fibre-glass but alternatively multi-filament yarns of nylon, vinylidene chloride, polyester or flexible metal may be used. The reels of yarn 20 are mounted in a container 20 provided with strand-tensioning means such as described in Specification 715,942 and supplied with hot air at 22 to dry the yarn. The individual strands S are maintained apart in the bath 26 by combs 28, 29 and excess resin is removed from the strands by a wiper blade 30 or by squeeze rolls. The strand grouping means 32 comprises a pair of pins, a ring, or a converging tube and a flanged wheel 33 arranges the strands into a ribbon-like band which is positioned during winding on to the rotating former R by a traversing means 37. After winding, the resin is cured by placing the former R in an oven at a temperature of about 212‹F. for about four hours. The resin used may be an epoxy resin, polyester or acrylic resins, or silicone or phenolic resins combined with a solvent. A wetting agent may be added to the resin to facilitate impregnation of the yarn.
Patent GB-2014508-A (GB)
Title: Liquid-permeable film
IPC: A61F13/511
Filed: 1979-02-15
Abstract: A film from thermoplastic material eg. polyolefine or PVC as covering layer for absorbent layers of an article has embossments with openings arranged at their ends. The embossments are formed in such a way that their side walls 2 extend at approximately right angles to the base surface 1. As a result the embossments form capillaries with a cross-section 5 which does not change over the entire depth of the embossments. The side walls 2 of the embossments may have at their open ends a bead 3. The embossments and the openings can have any shape. Preferred are slit-shaped embossments having dimensions of 0.3 x 2 mm, which have been arranged in rows, staggered and in alternating direction. <IMAGE>
Patent GB-2028289-A (GB)
Title: Producing silicon
IPC: H01L21/208
Filed: 1979-05-04
Abstract: A low temperature, closed loop, thermal decomposition process for producing a controllable mixture of heterogeneously and homogeneously nucleated ultrahigh purity polycrystalline silicon suitable for use in the manufacture of semi-conductor devices and photovoltaic solar cells uses the chemical reaction:   <IMAGE> where X is chlorine or bromine.c
Patent GB-2046779-A (GB)
Title: Process for gasification of ethanol
IPC: C07C1/00
Filed: 1979-06-21
Abstract: A mixture of ethanol and steam is passed over a gasification catalyst at 300 to 600 DEG C and 1 to 100 Kg/cm<2> using a steam to ethanol ratio by weight of 0.5:1 to 3.0:1 to produce a mixture of hydrogen, carbon monoxide and dioxide, methane and steam. The catalyst is one which is capable of gasifying hydrocarbons at 350 to 600 DEG C and preferably is nickel-based.
Patent GB-2026248-A (GB)
Title: Pressure regulating systems for vehicle brakes
IPC: F16K31/02
Filed: 1979-07-12
Abstract: A pressure regulating system for anti-lock or anti-skid regulating systems in vehicle braking systems comprises at least two solenoid valves 10-13 which are separately controlled by an amplifier 14, actuating means 16-18 for commonly actuating all the solenoid valves for a short period of time on the appearance of an actuating signal for one of the valves, and a control circuit having a holding winding 10a-13a associated with each of the valves. In operation, all of the solenoid valves 10-13 are actuated briefly on the appearance of an actuating signal from a monostable circuit 2 for one of the valves and thereafter a desired one of the valves remains actuated. The common actuating means may also comprise a single cylinder and piston acting on a linkage or a secondary winding on the solenoids. <IMAGE>
Patent GB-2030401-A (GB)
Title: Semiconductor circuit arrangements
IPC: H01L27/082
Filed: 1979-08-24
Abstract: A monolithic integrated semiconductor circuit arrangement comprises at least one injection logic circuit (e.g. T11) and at least one further circuit (B). The supply currents (Iq) of the further circuits (B) are derived from the injection logic circuit, for example by providing an extra collector zone (4, in Figures 5 and 6) adjacent the injector (1, in Figures 5 and 6) of the injection circuit. In this way problems are avoided which arise when the further circuits (B) which may be interface circuits are supplied from a special peripheral power supply circuit via an intricate conductor configuration, and a fixed ratio between the injector current (Is) of the injection logic circuit (T11) and the supply currents (Iq) for the interface circuits (B) can be maintained. <IMAGE>
Patent GB-2057767-A (GB)
Title: Push button switches
IPC: H01H1/24
Filed: 1979-08-31
Abstract: A push button switch with a "collapse" action has a plunger 10 with a cam member 16 which is adapted to be pressed against and to displace sidewards one or two close-coiled springs 18, 20. The force required to initially depress the button is high and this force reduces as the springs 18, 20 are displaced due to the cam profile. The springs may also act as return springs although a different shaped cam could be used to give a "pull to release switch". Where buttons are mounted in rows the coil springs can be made long enough to serve the entire row. The sideways deflection of the coil springs is used to operate contacts 26, 28. <IMAGE>
Patent GB-2029482-A (GB)
Title: Connecting window frames
IPC: E06B1/36
Filed: 1979-09-04
Abstract: Two adjoining window frames (1, 3 and 2, 4) can be connected together at a preselected angle by means of a structure which comprises two supports (12 and 13) to be connected to the fixed uprights (2 and 1) of the adjoining frames, the supports (12 and 13) each having a projection (8 or 9) of circular cross-section to be pivotally engaged in a respective recess (6 or 7) of an element (5). The structure allows the supports to be set at any desired angle relative to one another by appropriately cutting the arms 17, 18 of the supports, pivoting the supports, and then securing the free ends of the arms 17, 18 by glue or adhesive tape at 19 and a thermoplastic seal 20. The supports 12, 13 and the element 5 are of thermoplastics. <IMAGE>
Patent GB-2031245-A (GB)
Title: Apparatus for the reproduction and enlargement of still or moving pictures
IPC: H04N5/262
Filed: 1979-09-05
Abstract: An apparatus for the reproduction and enlargement of still or moving pictures, comprises an electronic scanning tube for scanning an original picture, a television tube for reproducing the picture, and saw-tooth generators (11,11') for horizontal scanning and vertical scanning of the scanning tube and the television tube. The saw-tooth voltage for the horizontal scanning in the scanning tube is synchronized with the saw-tooth voltage for the horizontal scanning in the television tube and the saw-tooth voltage for the vertical scanning in the scanning tube is synchronized with the saw-tooth voltage for the vertical scanning of the television tube. Means (P2, P3, P2', P3') are provided in the horizontal and in the vertical channel of the scanning signals of the scanning tube, for the superimposition of direct current voltages on the sawtooth voltages thereby enabling the centre of the scanning raster of the scanning tube to be selected, and potentiometers (P1, P1') are provided for varying the amplitudes of the saw-tooth voltages in the horizontal and in the vertical channel of the scanning signals of the scanning tube thereby enabling the enlargement of the scanned picture section to be selected. <IMAGE>
Patent GB-2063835-A (GB)
Title: Improvements in or relating to apparatus for removing and collecting crown corks
IPC: B67B7/16
Filed: 1979-10-30
Abstract: Apparatus for removing crown corks from bottles and collecting the removed crown corks comprises a mounting 1 of rigid sheet material intended to be secured to a downwardly depending face 6 of a bar by a first part 2 of the mounting which carries a crown cork remover 8 and a collector vessel 16 detachably supported on the mounting, the mounting 1 and the collector vessel 16 being configured and dimensioned to locate the mouth of the collector vessel vertically below the crown cork remover when the mounting is secured to a bar. The mounting 1 has a second intermediate part 3 extending rearwardly and downwardly of the first part 2 and a third part 4 for supporting the collector vessel extending forwardly and normal to the second part. <IMAGE>
Patent GB-2034624-A (GB)
Title: Hydraulically actuated hollow clamping cylinder for clamping devices on a rotating spindle
IPC: B23B31/30
Filed: 1979-11-02
Abstract: Internal space is economized and oil friction reduced in a clamping cylinder having a housing (1), for connection to a rotating spindle, and having an annular chamber (3) containing a piston (4) with a collar (5), for connection to a traction member for actuating a clamping device, and passing through a gap (6) to a supporting bore (7) in a housing cap (2). This assembly rotates on a stationary unit (16) with connections (17.1, 17.2) for supply and discharge of pressure oil to and from opposite faces of piston (4) to actuate the traction member. Part of this oil is leaked through a bearing gap (21) surrounding a projecting portion (13) of housing (1). Cooling air is fed through cooling chamber (22) by fan blades (24.1). Safety valves are provided between the ducts of each of two pairs of ducts leading to chamber (3) for said oil supply and discharge. These safety valves prevent inadvertent movement of the piston and unintentional clamping device release. <IMAGE>
Patent GB-2036889-A (GB)
Title: Sealing
IPC: F16J15/34
Filed: 1979-11-05
Abstract: A conveyor mechanism for a pasty mass has a conveying drum 2 rotatably mounted in a housing 8 and whose end is sealed with respect to the housing 8. The sealing is effected via a labyrinth seal 18 and radial sealing faces of sealing flange 26 and ring 30. Arranged between the labyrinth seal 18 and the sealing faces is an annular channel 20 for the return of leaked mass to the inlet side of the conveyor mechanism. To improve the sealing outwardly, one sealing face 28 is connected via sealing ring 30 to a radially aligned supporting face 34 of a thrust ring 32 prestressed by means of a pressing device 36 between the conveying member 2 and the housing. A lubricating device 38 is provided for supplying lubricant to the sealing faces. The pressing device may comprise piston-cylinder units or springs. <IMAGE>
Patent GB-2063183-A (GB)
Title: Live birds handling equipment
IPC: A01K45/00
Filed: 1979-11-09
Abstract: This invention relates to the handling of live poultry from farm to factory. In order to minimise damage to the birds they are transferred from a controlled environment house (5) to an air conditioned closed-sided vehicle (1) fitted with an awning (4) to integrate the vehicle (1) with the house (5). The transfer takes place on a conveyor (11) feeding birds onto a rotary loading table (12) whence they are transferred onto conveyors (40) in cages (9) in the vehicle (1). Catching, loading, transport and unloading preferably take place under conditions of subdued lighting to mute bird activity. <IMAGE>
Patent GB-2041411-A (GB)
Title: Manufacturing a low-oxygen copper wire
IPC: B21C37/04
Filed: 1979-12-11
Abstract: A method of manufacturing a low-oxygen copper wire comprises the steps of supplying molten copper to a covered launder to maintain a predetermined atmosphere and gas-sealed by a reducing or inert gas at least at the final stage, measuring the oxygen content of the molten copper in the launder or at an inlet of the casting machine, and adjusting the oxygen content of molten copper in accordance with the thus measured oxygen content, the oxygen content being adjusted to produce a low-oxygen copper wire having the desired oxygen content in the range of oxygen-free copper to tough-pitch copper after continuous casting in a belt-type casting machine followed by rolling. <IMAGE>