baber/WOPTO huggingface dataset:
Patent GB-1366759-A (GB)
Title: Tuning circuits
IPC: H03J5/02
Filed: 1972-06-08
Abstract: 1366759 Digital to analogue converters INTERNATIONAL STANDARD ELECTRIC CORP 8 June 1972 [16 June 1971] 26768/72 Heading G4H [Also in Division H3] In a tuning circuit having one or more voltage variable capacitors D1, D2, D3 connected as a tuning element and a plurality of adjustable impedances R19, R29, R39 connected in common at one end and each selectable by a switching means A1, A2, A3 to cwuse a respective control voltage or current of adjustable magnitude to be applied to the tuning element, a respective decoupling diode D11, D21, D31 is connected in a control path which extends betwoen the respective adjustable impedance and the tuning element and a temperature compensating network D100, R6, D101, D102, Fig. 1, D103, R6, Fig. 2, is connected to the one end of the adjustable impedances and to the control path so as to compensate for variation of tuning frequencies with temperature which would otherwise occur. As shown in Fig. 1, A1, A2 and A3 are the outputs of electronic switches for selectively connecting tuning voltages from R19, R29, R39 via decoupling diodes D11, D21 and D31 to varactor diodes D1, D2, D3 of the tuner. Temperature compensating diodes D100 and D101, D102 are provided. Resistors R100 and R102 may be variable to adjust the compensation. By connecting a compensating diode D103, Fig. 2, in the backward direction compensation of the temperature effect of the decoupling diodes D11, D21, D31 is obtained. The temperature coefficient and the magnitude of the voltage at the compensating paths can be adjusted by suitably selecting the semiconductor material of the diode path such as silicon, germanium or selenium. The compensating diode D103 is biased in the forward direction by an independent voltage source U z . The voltage U z  may be obtained from a rectifier or multiplier circuit, a charging capacitor, one or more filter resistors and one or more filter capacitors connected to the horizontal or vertical deflection transformer or to the EHT transformer or to the deflection coils or to already existing or additional oscillators or pulse generators in television or radio receivers. The supply. voltage U z  may contain a voltage or current stabilizing section. Where very exact temperature compensation is required throughout the entire tuning range the supply voltage U z  is derived and/or controlled from the tuning voltage. In a modification of Fig. 2, the resistor R6 may be replaced by a transistor (T100, Fig. 3, not shown) controlled to provide a constant collector current. In a further embodiment (Fig. 4, not shown) a transistor (T106) produces a temperature dependent voltage drop across a resistor (R106) connected in place of the diode D103 for compensating the change in tuning voltage. When the elements to be compensated and the compensating elements are separate elements they are advantageously arranged in good heat transfer relationship. Preferably they are integrated on a common substrate.
Patent GB-762547-A (GB)
Title: Improvements relating to electric circuit interrupters
IPC: H01H33/92
Filed: 1954-09-15
Abstract: 762,547. Oil-break switches. GENERAL ELECTRIC CO. Sept. 15, 1954 [Sept. 17, 1953], No. 26771/54. Class 38(5) In order to guide the movement of a crosshead 16 carrying the movable contacts 11, 13 of the series breaks 8, 9 of an oil-blast circuit-breaker, a pair of tubular guide rods 52 secured to the crosshead and to a plate 53 telescope with rods 56 secured to a fixed plate 51, slide bearings 57 for the rods 52 being provided in the end casing 46. Contact 13 is mounted on an insulating rod 17 and connection between the breaks 8, 9 is made by a transfer contact 14. When the breaker opens, the crosshead 16 is moved downwards by springs 47, 48, the opening movement being limited by abutment of plate 53 with a resilient buffer 55. The upward movement of the crossbar 2 is transmitted to the crosshead 16 through series isolating contacts 18, 19, which open the circuit of a resistance R shunting the breaks. A pump 30 assists in quenching capacitancecurrent arcs at breaks 8, 9 and comprises a piston 35 spring-biased downwardly so that, when bar 2 is moved downwardly, thus separating rod 39a from stop 39, the pump forces oil through passages 43, 43a to arc-quenching chambers 21, 22. the flow being controlled by valves 44, 44a. To prevent overtravel of the crosshead 16 when closing the breaker, lugs 65 on the crosshead abut a ring 61 mounted on a plate 62, the excess energy of movement being then absorbed by a spring 60 held between the casing 46 and ring 61. In another embodiment (Fig. 3, not shown) the movable contacts are equally spaced from the axis of the pump. In another embodiment (Fig. 4, not shown) three interrupting: breaks and telescoping guides are provided. Specifications 193,136 [Class 38(v)], 493,262 and 750,842 are referred to.
Patent GB-872234-A (GB)
Title: Apparatus for the production of bulky yarns
IPC: D02G1/16
Filed: 1959-08-05
Abstract: 872,234. Finishing yarns. CANADIAN CELANESE Ltd. Aug. 5, 1959 [April 24, 1959], No. 26805/59. Class 120(3) Apparatus for bulking yarn by subjection to an air jet comprises a yarn passage having a closable, lateral, yarn access opening (for threading-up) extending along its length and at least one air passage opening into the yarn passage at least in one relative position of the several parts of the apparatus in which the opening is closed. A nozzle A, Fig. I, is supplied with air through conduit 8 and has a tubular yarn passage 6 and slot 7 which may be closed by a removable plate 5. Another nozzle, Fig. 2 comprises a bore 14 in which a plug 15 may be rotated between a threading-up position in which a slot 16 is in line with a slot 17 and the operating position in which slot 16 faces an air inlet 13. In a modification, Fig. 3, a dovetailed groove 22 is closed by a sliding tongue 23. In the nozzle of Fig. 4, complementary grooves 27, 30 and 26, 29 form yarn and air passages when panels C and D are in register.
Patent GB-1496523-A (GB)
Title: Clutch or vibration damper
IPC: F16D37/00
Filed: 1974-06-18
Abstract: 1496523 Powder clutches; vibration dampers POWDER COUPLING Ltd 22 May 1975 [18 June 1974] 26823/74 Headings F2C and F2S In a powder clutch or vibration damper wherein torque is transmitted between a rotor 14 and a casing 12a, 12b through a centrifugally formed ring of cast iron shot in a space 13 within the casing and an annular chamber 15 surrounds the space 13 and is connected thereto by passages 16, the passages 16 are covered by a wire mesh 17 through which broken particles of shot may pass whilst the larger particles are retained in the space 13. The passage 16 may be annular or may be a series of spaced passages. The rotor 14 may have radial corrugations or may contain one or more arrays of equi-angularly spaced holes. The rotor 14 and casing 12a, 12b are respectively connected to shafts 11, 10. The shot may have diameters in the range 0À022 to 0À032 inches.
Patent GB-377017-A (GB)
Title: Improvements in or relating to combined electric-magnetic regulators and automatic cut-out switches
IPC: H02J7/22
Filed: 1931-09-26
Abstract: 377,017. Electromagnetic switches and interrupters. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Sept. 26, 1931, No. 26868. Convention date, Oct. 9, 1930. Addition to 302,590, [Class 38 (v), Electric switches &c.]. [Class 38 (v).] In the combined electromagnetic regulator and automatic cut-out described in the parent Specification in order to provide sufficient resilience in the movable contact support of the automatic cut-out the bimetallic strip carrying the movable cut-out contact is itself supported by a strip of springy material. As shown in the Figure, the movable contact of the cut-out is carried by a bimetallic strip b which is riveted at its lower end to a strip a of springy material secured to the framework. Under overload conditions the sparking at the cutout contacts in breaking the battery circuit causes the bimetallic strip b to bend towards the fixed contact 12 so maintaining the cut-out contacts closed. On cooling, the bimetallic strip bends back and opens the cut-out contacts. The strip and its carrying spring may alternatively be welded together, and may be carried directly by the cut-out armature.
Patent GB-482671-A (GB)
Title: Improvements in or relating to harness, belt, strap or the like equipments
IPC: A44B11/00
Filed: 1936-10-03
Abstract: 482,671. Supporting buckles &c. on belts &c. NEWMAN, E. A. H. Oct. 3, 1936, No. 26887. [Class 43] A mounting for the support of buckles &c. upon belts &c. consists of a metal strip bent to the form of a loop 1 and attached to the buckle frame, the loop being slipped on the belt on which the buckle is to be supported. The loop may have one part extended and bent round the buckle as at 6 and lugs 7 may be formed on the other part to grip the first part. Specification 482,669 is referred to.
Patent GB-1393382-A (GB)
Title: Operation of internal combustion egnines
IPC: F02M27/02
Filed: 1972-06-08
Abstract: 1393382 I C engines E MUHLBERG 8 June 1972 26893/72 Heading F1B In a method of operating an I.C. engine all of the liquid fuel and part of the air supply are fed to a pre-combustion chamber 6 (via ducts 3, 9 respectively) in which partial combustion is effected to obtain a gaseous product comprising a hydrocarbon, part of the gaseous product being internally or externally recirculated to the pre-combustion chamber or the pre-combustion being carried out in the presence of a catalyst to prevent soot formation, the gaseous product then being mixed with further air and fed to the I.C. engine 16. The gaseous product is mixed with the further air which may be supplied by exhaust driven turbo-charger 19 in Venturi 14, the mixture passing through cooler 20 to be fed to the engine. Fuel and air flows are controlled by valves 5 and 11 in response to the temperature of the gaseous product sensed at 12 a, which temperature may be controlled in response to that of the engine sensed at 23. The flow of water through cooler 20 is also responsive to sensor 23. Air supplied by the turbo-charger 19 may also be cooled. The chamber 6 may be cooled by supplying water either to the chamber or to a conduit for external circulation of the gaseous product. For a higher boiling point fuel, the permissible lowest chamber temperature is higher than for a lower boiling point fuel. The gas/air mixture supplied to the engine may have a spin imparted, e.g. by shield valves, tangential inlet, &c. to induce charge stratification. If it is required to operate the engine normally on liquid fuel this can be sprayed into the pre-combustion chamber 6 without ignition. Alternatively a carburetter or injector for inlet pipe injection can be brought into operation by means of a change over device to circumvent the pre-combustion chamber.  The invention may be used with two or four stroke reciprocating engines or with rotary piston engines using applied ignition, i.e conventional timed ignition, or ignition using injection of ignition oil, catalysts or by hot spots such as heater plugs.
Patent GB-1153472-A (GB)
Title: A Method of, and Apparatus for, the Heating or Cooling of Liquids
Inventor: HADDEN RALPH KERR
IPC: F28D1/06
Filed: 1965-06-25
Abstract: 1,153,472. Heating or cooling liquids in bulk. R. K. HADDEN. 26 Sept., 1966 [25 June, 1965], No. 26952/65. Heading F4S. Liquid stored in a container may be heated or cooled by contacting the outer surface of the container with a flexible non-metallic blanket having at least one liquid passageway therethrough for the passage of a heating or cooling liquid from an inlet to an outlet. In Fig. 2, the blanket 3 comprises sheets 4 and 5 of plastics or rubberized stretched cotton whose edges are sealed together. Flexible tubing 6 is convoluted as shown and attached to the inner surfaces of both sheets. Press-studs 7 enable the blanket to be secured around a liquid container, e.g. a beer barrel. Screw-threaded attachments 9 on inlet and outlet ends 2 of the tubing 6 enable connections with other blankets and with a cooled water supply unit (Fig. 1), and a tap 8 controls the rate of flow of water through the blanket. A further embodiment comprises a circular portion with a radial slit, (Fig. 4), attached to the longer side of blanket 3 along a small arc of its circumference, so that the blanket can also be in contact with the top of a barrel surrounding the outlet pipe from the barrel. The liquid passageway may be formed by the blanket itself by sealing the edges of a folded sheet or two sheets and by securing together, at regular intervals across the width of the sheet or sheets, regions of the inner surfaces thereof (Figs. 3 and 5).
Patent GB-692949-A (GB)
Title: Improvements in or relating to pressure release valves
Inventor: YEWLETT GERARD JAMES
IPC: F16K17/06
Filed: 1950-11-04
Abstract: 692,949. Locking nuts. PRESTONE COOKERS, Ltd. April 25, 1951 [Nov. 4, 1950], No. 26989/50. Class 89 (i) [Also in Group XXIX] A lock-nut 6 for adjusting the minimum loading of a pressure relief valve has resilient jaws 6a, 6b which touch one another at their extremities in the unstressed condition but are spaced apart as shown when the nut is screwed on to a screw 5 which adjusts the valve loading spring 3. Nuts. The nut has a depending hook 7 which engages a flange 9 on the valve casing to limit the upward travel of the nut.
Patent GB-734126-A (GB)
Title: Improvements in or relating to process and apparatus for melt spinning artificial filaments
IPC: D01D1/04
Filed: 1952-10-27
Abstract: <PICT:0734126/IV (a)/1> In melt-spinning synthetic organic linear high polymers, particularly polymers that are substantially heat-stable in the molten state, solid polymer in small pieces is continuously fed to a melting space, heat is directly applied to the polymer to melt it at the periphery of the space and at a number of spaced surfaces distributed internally in the space, the size, shape and positions of the surfaces being such that the unliquefied polymer pieces mixed with liquefied polymer may freely move downwards by gravity around and between the surfaces and between them and the periphery of the melting space, and the liquefied polymer is allowed to flow out of the space by gravity while retaining the unliquefied polymer pieces therein by retention means located at the bottom of the melting space below the spaced surfaces.  As shown in Fig. 1, small pieces of a heat stable polymer such as polyamino-undecanoic acid or enanthic acid 11 gravitate from the feed hopper 10 into the melting apparatus 12, the lowermost frustoconical shaped portion 14 of which constitutes the melting chamber and is heated by fluid circulating through the jacket 15 and by the heating elements 18 which are vertical tubes or rods, spaced apart and from the wall 14 a distance exceeding three times the maximum dimension of the polymer pieces.  The elements 18 may be heated electrically or internally by the circulation of a hot fluid.  The lower outlet of the melting chamber 12 is provided with a wire gauze strainer 16 to retain any pieces of unmolten polymer and is connected to a conduit 17 leading to one or more spinning nozzles.  An inert gas is circulated through the upper portion of the chamber 12 by means of conduits 13-131.  The melting chamber may be mainly cylindrical in shape and the heating elements may be steeply sloping curved blades instead of vertical tubes or rods.  Specifications 461,237 and 728,232 are referred to.
Patent GB-220506-A (GB)
Title: Improvements in self-soaping lathering apparatus
IPC: A45D27/04
Filed: 1923-10-29
Abstract: 220,506. Kirschen, A. Oct. 29, 1923. Shaviwg - arppliances.- A self-soaping lathering device of the type having a hollow casing forming a handle in which a piece of soap is slidably mounted, is provided with a crossslitted lathering sponge 2, interchangeably mounted at one end of the casing 4, through which sponge the soap can be projected when the device is in use. A rubber casing 1 having slots 5 corresponding to the slits 11 in the sponge 2 fits into a holder 13 which screws on to the threaded end of the casing 4. The soap 6 is mounted in a slidable holder within the casing 4, and can be operated either by a radial pin 31 which projects through a slot 9 in the casing, or by an interior pin which can be operated whenthe lower closing cap is removed. The return movement of the soap may be assisted by a coiled spring. An alum stone 7 may be provided at the lower end of the casing, which is enclosed by a cover 10. In a modification, the sponge-holderis secured by vulcanization &c. to a rubber ring in the holder.
Patent GB-956783-A (GB)
Title: Voltage regulation in gas purifying plant
IPC: B03C3/68
Filed: 1960-08-05
Abstract: 956,783. Automatic control systems for electro-static precipitators. H. BRANDT. Aug. 5, 1960, No. 27158/60. Heading G3R. In order to optimise the electrode voltage of an electrostatic precipitator, the quanity of energy in each flash-over, i.e. in coulombs is measured, and the value integrated over a period of time, e.g. 1 minute. If the total energy dissipated during the period is below a predetermined value, the electrode voltage is raised, and vice-versa.
Patent GB-936977-A (GB)
Title: Improvements in safety devices for spindle valves
Inventor: CREIGHTON ARTHUR
IPC: F16K35/06
Filed: 1960-08-05
Abstract: 936,977. Key locks. W. N. BAINES & CO. Ltd. July 20, 1961 [Aug. 5, 1960], No. 27202/60. Class 44. In a valve having a spindle operated by a hand wheel, lever or the like, a safety device is provided which when operative enables the hand wheel, lever or the like to rotate freely with respect to the valve spindle and which prevents access to the valve spindle. In the embodiment shown in the drawings, a hand wheel 2 is used which has a boss 6. Slidably mounted in the boss 6 are two bolts 7 which can be projected to lie in the gaps between castellations of a dog 3 which is attached to the valve spindle 1 by a grub-screw 5. The bolts when retracted are free of the castellations and hence the hand wheel can turn freely with respect to the spindle 1. The bolts are moved by a barrel lock 9 which is provided with two pegs 8 each of which engages one of the bolts. To locate the hand wheel in the position in which the bolts are adjacent the gaps in the castellations a spring- loaded ball 16 is provided which engages depressions in a plate 11 screwed to the boss 6, which plate also serves to retain the bolts in position. A sleeve 13 is provided which is screw-threaded to the boss 6 and which extends over the spindle 1 to prevent the spindle being gripped by a tool. This sleeve is provided with an annular groove 14 and when the bolts 7 are retracted from the castellations an extension 15 of each bolt engages in the annular groove to prevent the sleeve being unscrewed from the boss 6.
Patent GB-1235431-A (GB)
Title: Improvements in and relating to the development of colour-reversal silver halide photographic films
IPC: C07D249/14
Filed: 1969-05-29
Abstract: 1,235,431. Development of multi-colourreversal silver halide photographic films. AGFAGEVAERT A.G. May 29, 1969 [June 14, 1968], No.27204/69. Heading G2C. A process for the development of a multi-colourreversal photographic silver halide film comprises treating the exposed material with a first silver image developer containing an aminomercapto derivative of the formula: - in which R is H or an aryl group and Y is an atom or group of atoms required to complete a 5- or 6- membered ring, or a corresponding tautomer. The compound may be 1-phenyl-5-amino-3-mercapto- 1, 2, 4-triazole, 4-hydroxy-6-amino-2- mercaptopyrimidine or 4-phenyl-5-amino-3- mercapto-1, 2, 4-triazole. The said first developer may contain potassium iodide. The compounds defined above depress the sensitivity of the top light-sensitive layer, which is normally the bluesensitive layer, resulting in a higher yellow density on colour development. The sensitivities of the light-sensitive layers below the top layer are unaffected or hardly affected. In addition these compounds do not cause colour fogging.
Patent GB-1293707-A (GB)
Title: Device for separating a liquid from a mixture of the liquid and a compressible fluid
IPC: B01D45/08
Filed: 1971-04-19
Abstract: 1293707 Centrifugal separator GUTEHOFFNUNGSHUTTE STERKRADE AG 19 April 1971 [14 Feb 1970] 27207/71 Heading B2P A steam-water separator comprises a collector casing 2, a duct 1 extending within the casing and containing a swirler 8, 9 for imparting a rotary motion to wet steam supplied through the duct from a steam generator, a guide 7 mounted on the upper edge of the duct for deflecting water centrifugally separated from the steam in the duct downwardly into the collector casing, and an array of staggered elongate members 3 of angled section providing a baffling device for removing residual water from the steam. The members 3 are closed at the top and bottom by covers, e.g. as shown at 4. Flow deflectors 6 are coaxially mounted at the top of the duct 1 to divide the escaping steam into three opproximately equal streams. The residual water runs down the members 3 and collects in the bottom of the casing which is provided with a water-seal trap 5. The dry steam passing radially outwards through the spaces between the members 3 collect into an annular space 10 from which it may be fed to a turbine.
Patent GB-797015-A (GB)
Title: Plant for feeding and collecting folded paper sheets to and on a conveyor member
IPC: B65H5/30
Filed: 1955-09-23
Abstract: 797,015. Sheet collating machines; feeding sheets. HEPP, R. Sept. 23, 1955 [Sept. 25, 1954], No. 27208/55. Class 100(1) A machine for feeding, opening and collecting folded paper sheets and delivering the sheets to a working place by means of a conveyer member, comprises two or more feeding and opening devices having a common or drive means, at least one of the feedins and opening devices being formed as a self-contained unit which is adjustable in respect of its operating position relatively to the run of the conveyer member. The machine comprises a continuously driven movable conveyer 10 having a roofshaped upper edge over which folded Sheets 12, 13, 14 are fed by feeding devices 1, 2, (Fig. 1). Each feeding device comprises a feeding drum 6 (Fig. 2) for feeding the sheets from piles 4, 5, in guide means (not shown) to opening rollers 7, 8, which operate by suction, applied at a hole 9, to open the folded sheet and deposit them on the conveyer 10, a collecting stud 11 serving to collect the sheets during movement of the conveyer. In the region 3 (Fig. 1) sheets may be fed manually to the conveyer. Between the two devices 1 and 2 common drive means is provided comprising sections 15 flexibly coupled to the feeding devices 1 and 2 by joints 16 and couplings 17. For adjusting the distance between the feeding devices 1 and 2 the couplings 15 may be telescopic or different lengths of couplings may be used. The weight of each feeding drum 6 is counterbalanced by a spring 21 which acts through a rod 22 on drum supports 23. Set screws 25 are provided for securing a base 27 of a feeding device on a supporting bed 28 in such a manner that the base can be turned slightly with respect to the bed 28. The axis of rotation of the rollers 7, 8, may thus be made to make an acute angle with the conveyer 10. Abutment members 29 or 31, (Fig. 4), may be provided adjustably along the conveyer 10 to assist the feed of the sheet on to the conveyer. In an alternative embodiment the opening devices may be mounted adjustably on a common carrier extending in the same direction as the conveyer 10.