baber/WOPTO huggingface dataset:
Patent GB-1084851-A (GB)
Title: Improvements in and relating to pneumatic control systems
Inventor: FEDOSEEV ROBERT JURJEVICH
IPC: F15C3/04
Filed: 1964-09-06
Abstract: 1,084,851. Valves. NAUCHNO-ISSLEDOVATELJSKY INSTITUTE TEPLOENERGETICHESKOGO PRIBOROSTROENIJA. Sept. 6, 1964, No. 31987/64. Heading F2V. A fluid pressure comparator comprises a switching valve 2 having three interconnected diaphragms, a comparator 1 having three interconnected diaphragms a closing valve 3, similar to the valve 1, and two differential relay valves 4, 5. In all the valves, the middle diaphragm is of a larger effective area than the two outer diaphragm and loading pressures 21, 22 are applied to the chambers 20, 19 respectively of valves 2 and 3. The two pressure signals being compared are fed through passages 13, 14 to the switching valve 1 and a pressure 23, when preset, overcomes loading 21 to close passage 14 and open passage 13 but when absent, passage 14 is open and passage 13 closed. Thus the pressure in 13 or 14 appears in outlet 25, depending upon the condition of switching pressure 23, and this is fed to chamber 12 of comparator 1. The outer chambers of comparator 1 are connected to a supply 11 which also leads to the outer chambers of valve 3 and to one of the chambers of valves 4 and 5. In operation, when pressure 23 is applied, the signal 13 appears in passage 25 and chamber 12 of comparator 1. The pressure in supply 11 then builds up in chamber 9 of the comparator and this pressure is also fed through valve 3 and outlet 17 of this valve to chamber 15 of comparator 1 due to the pressure 23 also acting against the loading pressure 22 of valve 3. When the pressure 23 is released, the valve 3 immediately closes output 17 to trap the pressure equal to signal 13 in chamber 15 and through passage 24 the pressure in chambers 4a, 5a of valves 4 and 5. The signal pressure 14 now acts in chamber 12 against the pressure equal to 13 in chamber 15. The pressure in chamber 9 is now adjusted in accordance with the difference between the signals pressures so that the pressure in passage 16 now rises, falls or remains constant depending on whether signal 14 is above, below or equal to pressure 13. If the pressure 14 is above 13, the diaphragms of valve 4 close the connection of a supply 29 to an outlet 26 which then falls to atmospheric pressure. If the pressure 14 is below 13, the outlet 27 is atmospheric in a similar manner and if the pressures are equal, both outlets 26, 27 are at pressure.
Patent GB-655969-A (GB)
Title: Driving means for the shedding tappets of looms
IPC: D03C1/16
Filed: 1948-12-10
Abstract: 655,969. Driving shedding tappets. ZBROJOVKA BRNO, NARODNI PODNIK. Dec. 10, 1948, No. 32054. Convention date, Dec. 13, 1947. [Class 142(i)] Plain weave tappets 17 on a shaft 8 are driven from a shaft 2 through gears 4, 5, 6. The shaft 8 drives, through gears 7, 13 and an intermediate gear (not shown), a sleeve 14 carrying the slidable pinion 16 of a Norton tumbler gear, the intermediate pinion of which can be meshed with any of a cone of gears 10-12 on a shaft 9 to drive patterning tappets 19,
Patent GB-506338-A (GB)
Title: Improvements in automatic controllers
IPC: G05D23/19
Filed: 1937-11-22
Abstract: 506,338. Automatic control systems. KENT, Ltd., G., and SCANES, JUN., P. Nov. 22, 1937, No. 32119. [Classe 38 (iv)] [Also in Group XXXVII] Automatic controllers of the '' on-on '' type wherein a valve or the like is placed " on " a fixed amount if a controlled variable departs from a given value in one direction and " off " if the variable departs in the other direction, comprises controlling switches for the respective control operations which are selectively operated by one or two circular cams which have an annular flange engaged by a switch-operating follower, the flange or flanges being locally interrupted and provided with a sloping surface to lead the follower from one side of the flange to the other. Thus, an extended range of departure of the variable is provided for. The Figure shows a single flanged cam disc 18 having a recess 21<1> in which the follower 16 lies when the variable is at the desired value. The disc 18 is secured to a shaft 11 which is rotated in accordance with changes in the variable. The follower 16 is carried by an insulated blade 31 adapted to make electrical connection alternatively with insulated blades 30, 32. The three blades are carried by an arm 9 adjustable about the spindle 11 by chain gearing operating from a spindle 37 in order to determine the desired value of the variable. A block 22 with an inclined surface 19 provides, in conjunction with the end of the interrupted flange 21, a cam track leading the follower to one side or the other of the flange on deviation of the variable to cause contact with blade 30, or 32, which is maintained by the flange cooperating with the follower throughout an extended deviation. The width of the control zone is varied by flexing the contact blades 30, 32. The Figure also shows contact elements operated by a second cam (not shown) operable by an independent variable and having independent means of adjustment. Modifications are described in which two separate switches arc operated by independent cam discs wherein relative circumferential adjustment of the discs determines the width of the control zone.
Patent GB-150216-A (GB)
Title: Improvements in gun barrels
IPC: F41A21/18
Filed: 1919-12-24
Abstract: 150,216. Thompson, J. T. Dec. 24, 1919. Ordnance riflings.-Relates to guns in which the bore is gradually constricted throughout a portion of its length and is rifled along this portion, and consists in causing the rifling grooves to flare outwardly to compensate for the constriction. The muzzle end of a small-arm barrel is shown having a smooth bore portion 4 and a rifled portion 5, the bore across the lands converging and that across the grooves diverging from rear to front, to maintain the cross-sectional area of the bore constant.
Patent GB-785899-A (GB)
Title: Arrangement for gasifying finely divided fuels which are in suspension
IPC: C10J3/46
Filed: 1955-11-11
Abstract: 785,899. Gasefying pulverulent fuel. KOPPERS GES., H. Nov. 11, 1955 [Nov. 13, 1954], No. 32323/55. Class 55 (1). In gasefying finely divided fuels in suspension with oxygen, a homogeneous mixture of fuel and oxygen being blown into a reaction chamber 10 which is at an elevated temperature, the fuel is conveyed by a worm 16 into a compression chamber terminating in an annular slot 24, and the oxygen is passed through the hollow shaft 18 of worm 16 to the inner rim 26 of slot 24 so that the plug of fuel formed in slot 24 is constantly broken up from inside, and a comparatively short mixing section 28 is provided between the annular slot 24 and chamber 10. The worm 16 may be displaceable longitudinally in order to vary the cross-section of slot 24. The walls of the mixing section 28 are formed by a water-cooled jacket 32. A water-cooled jacket 38 is also provided adjacent chamber 10, the annular space 44 between jackets 32, 38 forming an injection nozzle for steam. Specification 673,163 is referred to.
Patent GB-179968-A (GB)
Title: A cage for roller bearings
IPC: F16C33/54
Filed: 1920-11-16
Abstract: 179,968. Walter & Berges Maschinenfabrik, and Berges, K. Nov. 16, 1920. Bearings.-In a tubular slotted cage for roller bearings, the edges of the separating members 5 are made taper by pointed stamps 13, Fig. 13, or the slots are cut so as to have tapered edges by two stamping-knives 12, Fig. 11, set at an angle to each other.
Patent GB-137516-A (GB)
Title: Improvements in the weaving of pile fabrics
IPC: D03D39/16
Filed: 1919-12-24
Abstract: 137,516. Koch, G. Jan. 9, 1919, [Convention date]. Pile-fabric looms. - In weaving pile fabrics, the pile loops C, Fig. 6, are formed by crossing the pile warps a<1> with respect to a series of longitudinallyextending attenuated supports n inserting wefts b between the pile warps and the supports, and returning the pile warps to their initial positions. The supports have free ends projecting beyond the fell of the fabric, so that as the fabric advances, the wefts b leave the supports and free the loops. Two fabrics may be woven face to face, as shown, and the supports n may comprise stout linen threads extending from a beam o, Fig. 1, between the two fabrics and supported by a heald r. Two shuttles q are employed, and a few picks of ground weft are inserted into sheds formed by crossing the ground and pile warps a, a<1> between the pile loops, pile warps a' being moved from one shed to the other to cross the supports n. The loops are preferable formed alternately in each fabric as shown to prevent the two fabrics being connected together by loops from each fabric being formed over the same weft thread. When a single fabric is woven, as shown in Fig. 9, the upper shuttle is picked only when pile loops are to be formed. Spaced breast beams are employed and the pile warps are kept taut by yielding means k. When worn, the ends of the supports n are cut off and the beam o is turned to advance the supports.
Patent GB-222356-A (GB)
Title: Improved feeding devices for meat slicing machines
IPC: B26D1/143
Filed: 1923-12-28
Abstract: 222,356. White, A. E., (Dayton Scale Co.). Dec. 28, 1923. Cutting slices in succession.-In a meat-slicing machine of the type comprising a table reciprocated from a main driving shaft by a crank and crank shaft and a meat plate displaceable transversely of the table by a lead screw, the screw is actuated by means independent of the crank shaft and the parts driven thereby. As usual a hand wheel 14, Fig. 3, rotates a shaft 15 geared to a shaft 18 having a crank 19 and connecting- rod 20 pivoted at 21 to the reciprocating meat table. To drive the feed screw a supplementary shaft 27 driven by a gear 30 carries a face cam 29 operating a rocking member 33 to which is secured at its outer portion a channel 34a which is thus oscillated vertically. The channel houses a roller 37 on a bell crank lever 36. This lever is pivoted on the meat table and its upper end engages a roller 38, Fig. 2, secured to a rack 61 gearing with a pinion 62 which actuates the feed screw 24. To adjust slice thickness the roller 38 is returned by springs 43, this return movement being limited by the head of a plunger 44 adjusted by a knob 45, an indicator 55 geared to the knob being graduated to show the thickness for which adjustment has been made. The pinion 62 actuates the feed screw by a " free-wheel " clutch of the wedging ball type. To allow the screw to be turned by a handle 73, Fig. 6, when desired a sleeve 77, is provided held by a spring ball 79 in either normal or operative position. The sleeve carries prongs 75, one for each ball 69, which, when the sleeve is pressed inwardly, move the balls from their wedging positions.
Patent GB-469365-A (GB)
Title: Improvements in and relating to fasteners for attaching strips to supports
IPC: B60J10/04
Filed: 1936-11-27
Abstract: 469,365. Fastenings. UNITED-CARR FASTENER CORPORATION. Nov. 27, 1936, No. 32531. Convention date, Dec. 14, 1935. [Class 44] A fastener for attaching a strip 4 to a support consists of a base 9 with a press button 7 upon one side and a hook-shaped spring 11 upon the other. Such fasteners are shown holding flexible strips 4 to the hollow frames 2 between which the window 3 slides. The fastener shown in Figs. 6, 7, is made from one piece of sheet metal the stud 7 being pressed out to form head and neck portions 12, 13 which are rendered resilient by slots 14. The arm 11 which is bent to grip the strip has a slot 17 and its end 16 is turned in to form a clamping edge. Specification 364,492 is referred to.
Patent GB-872894-A (GB)
Title: Improvements in or relating to mounting arrangements for semiconductor devices
Inventor: THOMPSON WILLIAM GEORGE
IPC: H01L23/473
Filed: 1958-10-13
Abstract: 872,894. Mounting arrangements for semiconductor devices. GENERAL ELECTRIC CO. Ltd. Oct. 5, 1959 [Oct. 13, 1958], No. 32592/58. Class 37. A mounting arrangement for semi-conductor devices, e.g. of the kind described in Specification 859,849, having a base electrode 3 constituted by a block of high thermal and electrical conductivity arranged to be cooled by fluid, comprises an insulating support 4 incorporating one or more ducts 5 and means, e.g. metallic inserts 7, for directing cooling fluid from a duct 5 on to the base electrode and for returning the fluid to the same, or a further duct. As shown, a semi-conductor device 1, together with a metallic insert 7, is mounted in an aperture 6 in the support 4, the metallic insert 7 also serving as an electrical connection to the base electrode. A power rectifier assembly may comprise a number of devices 1, each having a germanium rectifier element and a pair of opposed electrodes including copper base electrode 3, mounted along the length of a bar 4 of rectangular or elliptical cross-section or arranged in a circle on a supporting disc, the support being extruded or cast from a suitable resin or formed in two halves secured together. The devices 1 may be mounted alternately on opposite sides of the support 4 for ease in connecting the devices in series. Instead of being removable as shown, the inserts 7 may be moulded or cast in the support 4, Fig. 3 (not shown). Also the support may comprise two parallel ducts, the passages 12, 13 in the inserts 7 being transverse to the lengths of the ducts.
Patent GB-915279-A (GB)
Title: Fluid pressure regulators
Inventor: COX LAWRENCE ALFRED
IPC: G05D16/06
Filed: 1960-09-22
Abstract: 915,279. Valves. BRITISH OXYGEN CO. Ltd. Sept. 21, 1961 [Sept. 22, 1960], No. 32625/60. Class 135. A fluid-pressure regulator, such as for use in oxygen therapy equipment, comprises a housing 15 having an inlet for connection to a source of fluid under pressure and an outlet 26, a valve seat 2, a valve member 5, and a diaphragm 19 subjected on one side to the fluid pressure in the outlet urging it in a direction to allow the valve to close and, on the other side, to a loading force urging it in a direction to open the valve, the housing comprising two cooperating parts 14, 15 made, e.g. from lightalloy sheet metal, each having a radially outwardly-directed flange, one of the flanges having a lip crimped around the other flange to prevent separation of the flanges and to retain the periphery of the diaphragm between them in fluid-tight manner. The valve member 5, which may be of stainless steel, is mounted in a screwed nozzle 1 connected to the end of a container 9, the valve being urged by the pressure of fluid in the container and by a spring 7 into contact with a seat 2. The diaphragm is loaded by a spring 22 in order to provide the desired outlet pressure.
Patent GB-647739-A (GB)
Title: Improvements in or relating to apparatus for detecting or registering chemical characteristics of liquids
IPC: G01N27/49
Filed: 1947-12-11
Abstract: 647,739. Determining physical qualities of materials. WALLACE & TIERNAN PRODUCTS, Inc. Dec. 11, 1947, No. 32679. Convention date, Dec. 14, 1946. [Class 37] [Also in Groups XIX and XXXVII] Apparatus for detecting and recording the residual chlorine content of a water supply comprises an electric cell whose electrolyte is the water under test, and whose voltage operates an electromagnetic relay controlling the operation of further relays at pre-fixed high and low values of cell voltage to operate alarm mechanisms and record details of the residual chlorine content of the water. The electrolytic detector cell.-A cylindrical container 20 (Fig. 1) of insulating material, e.g. glass, spaced from a tubular porous body 30, e.g. of unglazed porcelain, is connected to an auxiliary receptacle 32 containing an electrode 35 in an electrolyte, e.g. sodium chloride solution. The container 20 also has a cylindrical electrode 40 whose periphery is covered with a spiral of platinum ribbon 42, and rotatable by a motor 47, contact to the ribbon being made via the shaft 44. The water to be tested is fed through the porous chamber 30 with the electrode 40 rotated at high speed, and the voltage generated by the complete cell, i.e. between electrodes 35, 40, is indicative of the residual chlorine content of the water. The electrode 40 may be a ribbon 42 of platinum, gold or silver, or may have a complete surface of such metal, or may be made of graphite. The indicator system.-In one embodiment, Fig. 5, the voltage derived from a detector cell fed from a water supply main 70 energizes a solenoid 80 to effect the movement of a pivoted permanent magnet core 82 to which is attached a thin vane 86 of heat-reflecting metal which may be introduced between a heater wire 88 and a bimetallic strip 89, to restore normally closed contacts 90, 91. The position of the vane 86 is initially adjusted so that it causes the closure of contacts 90, 91 for values of voltage from the detector cell below a predetermined minimum, resulting in the energization of a relay 105, which operates one or more warning lamps 112, 136 and energizes a transformer 120 feeding via its secondary winding a visual indicator 130 and solenoid 128 which operates a recording pen 142 marking on a rotating disc chart 140 the time and duration of the period during which the chlorination of the water is below minimum. In another embodiment (not shown) a recording pen is operated directly by the solenoid fed by the detector cell, the moving vane affecting the operation of two thermally controlled switches at predetermined maximum and minimum values of residual chlorine content, to cause the operation of an appropriate warning visible or audio indicator. Specifications 512,897, [Group XXVIII], 548,174 and 649,720 are referred to.
Patent GB-737486-A (GB)
Title: Improvements in shock absorbing devices
IPC: F16F9/50
Filed: 1952-12-29
Abstract: 737,486. Pneumatic shock absorbers. MERCIER, J. Dec. 29, 1953 [Dec. 29, 1952], No. 32882/52. Addition to 667,266. Drawings to Specification. Class 108 (3). The invention consists in using a gaseous working fluid (instead of a liquid) in the shockabsorbing device of the parent Specification. Otherwise the device described is identical with the device described in the parent Specification.
Patent GB-1358496-A (GB)
Title: Small-current integrator
IPC: G06G7/18
Filed: 1972-07-13
Abstract: 1358496 Current integrator system UNITED STATES ATOMIC ENERGY COMMISSION 13 July 1972 [25 Aug 1971] 32918/72 Heading G4H In a current integrator system in which the input current is integrated to a voltage which triggers a discriminator and pulse shaper and the pulse formed is both used to remove a predetermined charge from the integrator capacitor and is counted, the integrator has as controlled an input leakage of between 10<SP>-14</SP> and 10<SP>-16</SP> ampere and the system can integrate currents of the order of 10<SP>-12</SP> ampere, e.g. from radiation detectors. The low input leakage is achieved by using a dual-enhancement-mode MOSFET with a common mode feedback circuit including a voltage comparator and a current source which maintains the average drain voltage of the MOSFET within a few millivolts of ground potential. The accurately shaped pulse emerging from the pulse driver which includes a monostable multivibrator with a variable resistor for controlling the width of the output pulse and a pulse driver transistor is passed via a diode and resistor to the base collector junction of a low leakage transistor (QIa), the junction being biased slightly negative (-31 mV). A second transistor Q16 protects the MOSFET by providing a shunt to earth for voltages outside the range - 1À2 to + 12 volts.
Patent GB-172954-A (GB)
Title: Improvements in coal-bunkers for locomotives
IPC: B61C17/02
Filed: 1921-12-08
Abstract: 172,954. Aktiebolaget Ljungstr÷ms Angturbin. Dec. 18, 1920, [Convention date]. Bunkers, construction of.- The coal bunker is saddle-shaped and straddles the boiler near the cabin. The bunker 2 has a sloping forward end and is provided with pivoted shutters 4 which, in their open position, form a hopper for cooling. The sides of the bunker are formed with longitudinal channels 6 so as not to impede the driver's view from the cabin windows.
Patent GB-534124-A (GB)
Title: Improvements in and relating to internal combustion engines of the injected fuel type
IPC: F02B31/06
Filed: 1939-12-28
Abstract: 534,124. Fluid-pressure servomotor control systems. SOC. ANON. A. SAURER. Dec. 28, 1939, No. 33005. Convention date, Dec. 30, 1938. [Class 135] [Also in Group XXVII] In a fuel-injection engine in which, for assisting the formation of the mixture, a motion of the air around the axis of the cylinder is produced by means such as a baffle 6 on the air-inlet valve 4, the valve and baffle are adjusted automatically in dependence on the magnitude of a variable arising from the running of the engine. In one form, Fig. 1, the valves 4 of a multicylinder engine are adjusted by a piston 19 actuated by pressure from an engine-driven pump 24 and returned by a spring 22, the branch 29 of the delivery pipe 27 being provided with a restricted orifice 30. The piston 19 acts through a rod 18 carrying pins 16 engaging between leaf-springs 14 on arms 12 on the valve spindles 10, to allow those valves to be turned which are in the open position. In a modification, Fig. 2, the valves are adjusted in dependence on the pressure acting through a servo device. The stem 43 of a piston 42 actuated by the pressure carries a piston valve 41 controlling the admission and escape of pressure fluid to and from a cylinder 56, in which the pressure acts upon a servo piston 33 secured to the rod 18. Return springs 32, 52 act on the piston 33 and on the stem 43 of the piston 42. In a further modification, the leaf-springs 14 are omitted and the arms 12 are connected to the valve spindles 10 by tension springs serving as the loading springs for the valves.
Patent GB-1169195-A (GB)
Title: Improvements in or relating to Electric Circuit Arrangements for Operating Electric Discharge Lamps
Inventor: WILLIAMS CHARLES EDINGTON
IPC: H05B41/04
Filed: 1966-07-22
Abstract: 1,169,195. Supply systems for electric discharge lamps. GENERAL ELECTRIC & ENGLISH ELECTRIC CO's. Ltd. 12 July, 1967 [22 July, 1966], No. 33043/66. Heading H2H. A supply system for an electric discharge lamp of the type having a discharge envelope 1 situated inside a glass jacket 5 comprises a parallel circuit of an inductor 13 and a capacitor 14 connected in one of the supply leads between a supply terminal 9 and a lamp terminal 11, the capacitor 14 having a very much larger impedance value than the inductor 13. The discharge envelope 1 is in the form of a fused silica tube in which are placed main discharge electrodes 2, 2<SP>1</SP> and an auxiliary starting electrode 3. The capacitor has a value of between 0À1 and 1À0 micro-farad and the inductor a value between 20 and 450 ohms at the supply frequency. A normally closed bimetal switch 6, 7 is provided for starting the lamp and a normally open switch 8 is provided to minimize electrolysis effects during the running of the lamp. The lamp restriking voltage is more than twice its running voltage which is not less than half the supply voltage. In a second embodiment the lamp may be of the low pressure type without a starting electrode and the starting switch may be of the glow type external to the lamp. Capacitor 16 provides power factor correction.
Patent GB-1082095-A (GB)
Title: Improvements in or relating to anglers' floats
IPC: A01K93/02
Filed: 1965-08-03
Abstract: 1,082,095. Anglers floats. E. J. DICKENS. Aug. 1, 1966 [Aug. 3, 1965], No. 33076/65. Addition to 974,684. Heading A1A. The float comprises two parts 10, 11 screwed together, the upper part being at least partly transparent and being adapted to receive a lamp 50, a gravity switch comprising contacts 23, 25 which are closed by a ball 26 when the float is vertical, and an electric cell 30. The lamp is lit when a fish bites to pull the float from the horizontal to the vertical position.