baber/WOPTO huggingface dataset:
Patent GB-808990-A (GB)
Title: Improvements in or relating to electrically operated acoustic signalling devices
IPC: G10K9/13
Filed: 1956-05-25
Abstract: 808,990. Diaphragm vibrators. BELL, C. F. May 25, 1956 [July 18, 1955], No. 16231/56. Class 13. [Also in Group XXXIX] In a diaphragm vibrator in which two diaphragms 1, 2 are rim clamped and mounted parallel to one another, each carries a ferro-magnetic plunger 9, 10 and a single energizing coil 12 effects the operation of both diaphragms. Perforated cores 6, 7 are provided for the diaphragms.
Patent GB-529535-A (GB)
Title: Improvements relating to electromagnetically controlled indicators for displaying variable information
IPC: G05D3/12
Filed: 1939-06-02
Abstract: 529,535. Totalizators. SIEMENS BROS. & CO., Ltd., BROOME, J, H., WOOD, A. F., and SOUTHAM, A. A. June 2, 1939, No. 16271. [Class 40 (i)] An endless band or like indicator, e.g. for a totalizator as described in Specification 357,616 is coupled to a power source by a magnetic clutch which is kept energized independently of its initial circuit between display positions. As shown the driving sprocket which is capable of slight axial movement against a spring is acted on by two pairs of magnets carried on a wheel GW, which may be constantly driven, and energized when a change of display is required. One pair of magnets is energized under distant control and the other by cam operated springs ON controlled by the other sprocket when the indicator begins to move to ensure a complete change of display. Further cam-operated contacts SC send an impulse at each change to the controlling mechanism in case the indicator is a main indicator. In a modification, Figs. 5 and 6 (not shown), a circuit for all the magnets is completed by a latch magnet acting on a notched disc carried by the idle sprocket and is maintained between display positions by engagement of the latch with the disc.
Patent GB-885757-A (GB)
Title: Improvements relating to the production of cast tubular hollows
Inventor: WHITAKER PAUL
IPC: B22D18/04
Filed: 1959-05-13
Abstract: 885,757. Casting processes. STEWARTS & LLOYDS Ltd. Feb. 10, 1960 [May 13, 1959], No. 16435/59. Class 83 (1). Tubular metal hollows are made by dipping one end of a forming die into a bath of molten metal, causing metal to rise in the die to a desired height and after timing the freezing to give a suitable wall thickness, allowing the molten core to flow back into the bath. The metal may be forced into the die 4 by gas pressure on the surface of the melt 3, or it may be drawn into the die by suction. Inert gas in a vessel 6 expands into the cast hollow when pressure is released and prevents oxidation. Specification 793,356 is referred to.
Patent GB-1174899-A (GB)
Title: Improvements relating to Controllable Rectifier Devices
Inventor: MILES CLIFFORD VICTOR
IPC: H01L29/74
Filed: 1966-04-15
Abstract: 1,174,899. Semi-conductor devices. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 17 March, 1967 [15 April, 1966], No. 16573/66. Heading H1K. The cathode region of a PNPN controlled rectifier comprises a main section 3 which is annular and carries a main current electrode and an auxiliary section 4 which carries the control electrode. A shorting contact 8 is provided on a small part of the inner periphery of the main section 3 so that when a triggering current is passed between the sections 3 and 4 it passes through the contact 8, but the contact 8 is made sufficiently small so as not to impair the operation of the device. The contact 8 may be applied by alloying, or plating, e.g. electroless plating. A shorting contact may also be situated around part of the periphery of the auxiliary cathode section 4.
Patent GB-749676-A (GB)
Title: Improving the translucency of lubricating oils
Inventor: PUDDINGTON IRA EDWIN
IPC: C10G71/00
Filed: 1952-07-01
Abstract: Lubricating oils, for example mineral oils; are refined and used lubricating oils recovered, by treating at 100-200 DEG C. with an oxidizing agent and sodium, and then coagulating and removing colloidal material from the oil.  Oxidizing agents specified are air, oxygen and hydrogen peroxide.  The coagulation may be effected by adding to the oil a hydrocarbon-insoluble polar liquid such as water, methyl or ethyl alcohol or glycerol.  The coagulated colloidal material may be removed by centrifuging, filtering or settling or electrically.  The process may be preceded or followed by treating the oil with clay.  The Provisional Specification refers to the treatment of the oil with an oxidizing agent in the presence of an oxidation inhibitor; inhibitors referred to are magnesium and metals of more positive potential than magnesium in the electromotive series, salts of such metals with weak acids, oxides, peroxides and hydroxides of such metals and of tin, antimony, chromium and lead and inorganic weak acids; examples are borates, phosphates, acetates and benzoates, e.g. sodium metaborate and perborate, sodium acetate and trisodium phosphate; sodium amalgam, sodium peroxide, sodium thiosulphate, sodium carbonate and calcium hypochlorite.
Patent GB-569535-A (GB)
Title: A support for a joint of ham or the like
IPC: A22C17/02
Filed: 1943-10-11
Abstract: 569,535. Carving-stands. LITTLE, E. C., and METCALF, C. B. L. Oct. 11, 1943, No. 16590. [Class 28 (ii)] A carving-stand has a universally tiltable upper platform 19 with spikes 25 and an arm 26 carrying an adjustable strap 27 to hold the joint to be carved.
Patent GB-297491-A (GB)
Title: Improvements in and relating to machines for the manufacture of glass articles
IPC: C03B9/20
Filed: 1927-06-22
Abstract: 297,491. Hunt, S. June 22, 1927. Blowing ; cutting-off excess metal.-A machine of the suction-gathering type is provided with stop mechanism for arresting the upward movement of the parison mould, after it has gathered a charge of metal, and for acting as an abutment for withstanding the thrust of the knife as it shears through the metal trailing from the mould. The stop is removed after the cutting-stroke in order to allow the mould to continue to rise so that the knife, on its return stroke, does not touch the mould bottom. The parison mould 5, Fig. 1, is supported by parallel Levers 8, 9 which are pivoted on an adjustable slide 10 and carry a counterbalance weight 11. A cam roll 12, resiliently supported by the weight 11, engages a fixed cam track 13 which causes the raising and lowering of the parison mould as the machine rotates. The upward movement of the mould is arrested by a, stop 16 mounted on a screw 20 of quick pitch which passes through brackets 17, 18 secured to the slide 10. A pinion 22, secured to the screw 20, is engaged by a long pinion 26 mounted on a vertical shaft 27 which is rotated by a rack 30 and pinion 29 from a fixed cam 31. In operation, when the mould rises after making a gather, the part 24 of the lever 9 descends until it is arrested by the stop 16. The knife 15 then shears through the metal trailing from the bottom of the mould and the thrust of the blade, against the bottom of the mould is taken up by the stop 16. The movement of the machine then carries the mould past a rise in the cam 31 which moves the rack 30 and lowers the stop 16. The mould is then enabled to continue its upward movement away from the path of the knife.
Patent GB-1423597-A (GB)
Title: Device for measuring movements of a first member relative to a  second member
IPC: G01D5/34
Filed: 1973-04-06
Abstract: 1423597 Photo-electric measuring apparatus CARL ZEISS JENA VEB 6 April 1973 16603/73 Heading G1A An arrangement for measuring movements of a first member relative to a second member in which an image of a first portion of a grating scale mounted on one of the members is directed on to a second portion of the scale includes a symmetrical telecentric objective. In a first embodiment, Fig. 2, a reflection grating is located on a machine tool bed (not shown) and a scanning system is located on the machine tool slide. Light from source 2 passing through condenser lens 3 is deflected by prism 11 on to a second prism 10 positioned in the semi-circular aperture 9 of a symmetrical telecentric objective 5, 6, 7, 8 so as to extend into half the width of the path of rays. The light deflected at face 12 after passing through objective 6, 5 is deflected by a pentaprism 13 downwardly into the plane of the drawing on to the first portion of the grating scale, Fig. 1 (not shown). The reflected image passes back through the symmetrical telecentric objective 5, 6, 7, 8 and is deflected by prism 15 through a pair of optical wedges on to the second portion of the scale. The two images of the scale portions are separated in phase by T1/2 and into two paths by the wedges and pass back through objectives 8, 7 and are reflected at surfaces 17, 11<SP>1</SP> on to photo-sensors 19, 20. The resultant pulses are counted and fed into a bi-directional counter via a direction discriminator. In a second embodiment Fig. 3 light from source 2 passes through a first portion 14 of grating scale 1 and after deflection at prisms 13, 15 and passage through symmetrical telecentric objective 5, 6, 7, 8 the image is directed on to second scale portion 16. The superposed image is directed to four photo-detectors 23, 24, 25, 26 which give outputs phase shifted by 90 degrees.
Patent GB-272055-A (GB)
Title: Improvements relating to drivers for wheel lathes
IPC: B23B5/34
Filed: 1926-07-02
Abstract: 272,055. Craven Bros. (Manchester), Ltd., and Andrew, C.. D. July 2, 1926. Lathe drivers and carriers. - In a driving arrangement for locomotive and like railway wheel lathes the lathe face-plate a is slotted at b to receive bolts for attaching a bracket c in a position suitable to the size of wheel being turned. A block e is mounted on the bracket c and carries a push-bar f provided with a stud j for drawing a clamping plate g into engagement with two spokes of the wheel, one of said spokes being gripped between screws h, i, on the bar f and plate g respectively. For heavy cuts the tyre of the wheel is gripped by a pad l slidable in a member k pivoted to the base of the bar f, the pad being forced against the tyre by a screw m so that the pressure caused thereby reacts on the spoke grip g and is not transmitted to the face-plate. When it is desired to face the side of the tyre, the screw m is loosened and the member k is rotated about its pivot so that the pad lies against the face-plate and is locked in this position by the screw m, the drive then being by the spoke grips only. A roller may be provided in association with the push bar f to avoid resistance to the reaction between the tyre grip l and the spoke grip g. According to the Provisional Specification the push-bar f is bifurcated or in two parts so as to embrace a single spoke, the clamp plate g being attached thereto by two swivel bolts, and the member k is attached to a lever pivoted to an adjusting screw in the block e and connected by a link to the push-bar.
Patent GB-543284-A (GB)
Title: Improvements in and relating to the manufacture of lubricants
Filed: 1940-07-05
Abstract: 543,284. Lubricants for drawing metals. CROWTHER, H. A. H., and INDUSTRIAL & COMMERCIAL DETERGENTS, Ltd. July 5, 1940, No. 16685/41. Divided out of 543,263. [Class 91] A lubricant suitable for drawing metals comprises an emulsion containing a mineral oil and an alumino silicate which is characterized in that it has been prepared by first mixing the mineral oil and alumino silicate into a paste and then mixing this paste with water in the presence of an emulsifying agent. Specification 543,253 is referred to.
Patent GB-574927-A (GB)
Title: Improved priming arrangements for petrol engines
IPC: F02N99/00
Filed: 1944-09-01
Abstract: 574,927. Priming systems. HEYWOOD COMPRESSOR CO., Ltd., and HUNT, J. A. Sept. 1, 1944, No. 16709. [Class 7 (v)] [Also in Groups XXIX and XXXVII] A switch s, t operates valves k, g by solenoids m, h and compressed air flows past valve k and forces fuel from tank a past the valve g to nozzles f in the engine induction pipes, the switch being held on by a coil q and released either by a capsule z worked by the engine temperature or a capsule y worked by a heater coil x in the circuit with the solenoids. The valve k when closed vents the tank to atmosphere and the float e then allows the tank to be filled to the correct level. The capsules have a highly expansible fluid which compress bellows w and opens a switch u, v. The heater coil prevents over-priming by opening the circuit after a given time.
Patent GB-1421826-A (GB)
Title: Convective emergency cooling systems of nuclear rectors
IPC: G21C15/18
Filed: 1973-04-06
Abstract: 1421826 Nuclear reactor emergency cooling INTERATOM INTERNATIONALE ATOMREAKTORBAU GmbH 6 April 1973 [8 April 1972] 16746/73 Heading G6C Upon failure of the primary cooling of a reactor, e.g. a sodium-cooled, fast breeder, emergency cooling is set up by natural circulation in a flow direction opposite to that in part of the reactor during normal, primary cooling. The reactor core includes a fission zone 2 and radial and axial breeding zones 3, 4. Surrounding the core is an annular space 8 for storage of " hot " fission and breeder elements, and an outer, annular space 9 in which are disposed emergency cooling heat-exchangers 10 each in a protective shield 11 with an open bottom and inlet apertures 13 below the minimum coolant level 12. Upon failure of the primary cooling system, natural-flow circulation commences automatically with flow directions in the various regions as indicated by the arrows, the flow-direction in the breeder zone 3 being reversed relative to normal cooling flow. Flow diodes 16 are arranged to facilitate the natural-circulation flow and restrict the amount of coolant which bypasses the fission zone during normal, primary cooling. The diodes may be of a variety of forms such as direction-dependent throttles or diaphragms, or valves actuated automatically in response to coolant pressure or temperature. In a particularly suitable form, radial guide vanes are offset from one another in a helical arrangement. The coolant passes through gas bubble separators 15 prior to entering the lower breeder zone 4.
Patent GB-627658-A (GB)
Title: Felted water-resistant sheet fibre board
IPC: D21H21/28
Filed: 1947-06-26
Abstract: 627,658. Felted fibrous board. JENKINS CO., G. O. June 26, 1947, No. 16904. Convention date, July 25, 1940. Drawings to Specification. [Class 96] A felted fibrous board for making shoe heel bases and lifts &c. comprises 50 per cent upwards of fibrous material of which less than half, but more than 9 per cent of the board, is leather fibre, and 8 to 20 per cent of asphalt, tar, or animal, vegetable or mineral pitches, &c., which may be added as an emulsion with clay, and sodium silicate and alum may be added after beating. Talc, carbon black, ochre, and iron oxide may also be present. The heel lifts are dinked out, gouged, pressed, and trimmed, &c. An example specifies waste paper and leatherboard chips, sodium silicate, asphalt and clay.
Patent GB-848816-A (GB)
Title: Polymerisable compositions
Inventor: HURD REGINALD
IPC: C09D163/00
Filed: 1957-05-29
Abstract: A polymerizable composition comprises a copolymer of methyl methacrylate and a minor amount of methacrylic acid, a copolymer of vinyl acetate and a minor amount of crotonic acid, a polyepoxy compound, a basic organic catalyst, a solvent and optionally a polymeric plasticizer.  The polyepoxy compound, atalyst, solvent and plasticiser are as described in Specification 809,658.  The compositions may also contain pigments such as titanium dioxide and iron oxide and may be used to coat light metal, steel, wood or polyvinyl chloride surfaces by spraying or brushing, polymerization being then effected by stoving, generally at 60 DEG -120 DEG  C. Specifications 775,764 and 810,940 also are referred to.
Patent GB-296970-A (GB)
Title: Improvements in or relating to can body forming machines
IPC: B21D51/26
Filed: 1927-06-29
Abstract: 296,970. Troyer, N, June 29, 1927. Divided on 297,864. Hollow-ware.- In a machine for making can bodies from sheet metal blanks, the blanks are first preformed to break the grain of and thus the stiffness of the metal so that after again flattening, and finally bending to form the body, a truly cylindrical shape is obtained. The blanks are arranged in a stack 36, the lowermost blank resting on fixed fingers and being engaged by a suction tube 38 reciprocated from a shaft 17 geared to the main shaft, the suction being obtained by a pump reciprocated from the shaft 18 also geared to the main shaft. The blanks are fed in turn intermittently along a guideway by feed bars 57, 53, 54 reciprocated along guides by a link 63 and levers from the shaft 17. At different stages it is clamped in position and is first bent and again straightened to break the stiffness, is then notched, the edges then flanged, and the blank then bent over a former and the seam closed. After the blank is fed to a position opposite the rolls 75, 76, 77 it is forced laterally by a chain 89 through the rollers 77, 76 against a bending block 100 and is then returned through rolls 75, 76 over an adjustable straightening plate 103. The chain is driven by chain gear 96 from a shaft 98 geared to the shaft 18. The rolls are geared together and to a shaft driven by a belt from an electric motor. The straightened blanks are received on a plate 102 under a cover plate 105, which is retained in position by a spring-pressed plunger 112. The blank is finally bent over a horn 125 by a pair of pivoted arms 126, operated by links 131, levers 132, rods 133 and eccentric pins 134 from the shafts 98, 98<1>, and the seam is closed by a bumper 127 driven from the shaft 17 by a pitman 140.
Patent GB-1024484-A (GB)
Title: Improvements in and relating to rubber compositions
IPC: C08K5/17
Filed: 1963-05-01
Abstract: Stabilized synthetic rubber compositions contain, as a stabilizing agent, a complexing or chelating agent which is a water-insoluble aliphatic amino acid having a plurality of carboxyalkyl groups attached to tertiary amino nitrogen atoms. The complexing or chelating agent is preferably a compound of the structure <FORM:1024484/C3/1> wherein R is an aliphatic hydrocarbon group of 6-20 carbon atoms, R1 is an alkylene group of 2-10 carbon atoms, x is 0 or 1, y is 1 or 2, and when x is 0, y is 1 and when x is 1, y is 2. The compositions usually contain rubber anti-oxidants in addition to the stabilizing agent. Many suitable synthetic rubbers are specified. Examples are given.ALSO:Compounds of the general formula <FORM:1024484/C2/1> wherein R is an alkyl group containing 8-20 carbon atoms, are prepared by reacting an aliphatic diamine with chloroacetic acid in accordance with the reaction <FORM:1024484/C2/2> Examples are given.
Patent GB-234662-A (GB)
Title: A machine for use in the manufacture of accurately fitting dies
IPC: B21D37/14
Filed: 1924-07-17
Abstract: 234,662. Dehn, F. B., (Budd Manufacturing Co., E. G.). July 17, 1924. Dies.-A device for use in the manufacture of mating dies for stamping-machines has fixed and movable holders for the dies which enable those to be brought together to test the fit after each cutting operation. A base 6 and a sliding head 11 are provided with T-slots 32, 33 for securing the dies, the head being moved by one or two non-rotary screws 15 and nuts 18, formed externally as gears 19 and engaged by gears on a shaft 42 driven by a motor 22 through a belt 23. The motor may be vertically adjustable by a screw to tension the belt and a hand brake may be provided.
Patent GB-111528-A (GB)
Title: Improvements in and connected with Tool Holders for Lathes and other Machine Tools.
IPC: B23B27/06
Filed: 1916-11-29
Abstract: 111,528. Richards, D., and Dyson & Co. Nov. 29, 1916. Tool-holders; tools.-A subholder for mounting tools in holders comprises a body portion adapted to be held in the main holder in lieu of a tool, and which is formed with a recess for receiving the cutter, and is provided with stationarv or self-adjusting locking-means. The sub-holder u has a T-shaped part u<1>, to engage jaws c in the shank of the main holder, and is acted on by spring-pressed rollers in transverse recesses in a block g secured by screws to the shank. The sub-holder has a horizontal recess v to receive a cutter w secured by a set-screw y. This construction permits of the use of short pieces of tool steel. For cutting screw-threads or helices, a circular recess is provided to permit angular adjustment. In a modification shown in Figs. 8 and 9, the sub-holder 1 has a T-shaped part 2 to engage jaws c, and a guide-groove to hold a projection 6 on the tool. shown as a chaser. The sub-holder has three horizontal recesses carrying spring-pressed pivoted pawl 9 which engage recesses formed in one side of the tool. To change from right-hand to left-hand work, the tool is removed, the sub-holder reversed, and the tool re-inserted, the pawls being turned on the insertion of the tool to lock it in position.
Patent GB-1504049-A (GB)
Title: System for sensing the air gap between a cutting tool and a work piece
IPC: B23Q15/22
Filed: 1975-04-25
Abstract: 1504049 Inductive displacement sensor WESTINGHOUSE ELECTRIC CORP 25 April 1975 [10 May 1974] 17231/75 Heading G1N [Also in Division B3]  The air-gap between a cutting tool 30 and a workpiece 32 is sensed by means of a first coil 12 mounted on the machine and a search coil 14 surrounding the cutting tool in proximity to the air-gap and mutually inductively coupled with the first coil. The first coil is connected in series aiding with a third coil 16 mutually inductively coupled with a fourth coil 18 connected in series opposition with the search coil. By adjustment of the coupling coefficient between the third and fourth coils using a non-magnetic screw (not shown) to effect relative displacement between them, and by adjustment of variable resistance 20, the signal output at terminals 24, 26 is a null at a datum air-gap, say 1.75 inches. Changes in the air-gap cause the mutual inductance between coils 12, 14 to change whereby an output voltage is produced at the terminals 24, 26 which voltage is processed by the circuit of Fig. 2.(not shown). This involves amplification, rectification, clipping by diode 88 and inversion (at 76). The resulting D.C. signal may be applied to modify the tool feed speed.