baber/WOPTO huggingface dataset:
Patent GB-437063-A (GB)
Title: Improvements relating to fastenings for doors, hinged windows and the like
IPC: E05C9/12
Filed: 1934-08-29
Abstract: 437,063. Multiple-bolt fastenings. HOPE & SONS, Ltd., H., and WATSON, G., Halford Works, Smethwick, Staffordshire. Aug. 29, 1934, No. 24894. [Class 44] A multiple fastening for doors &c. comprises a pair of vertical bolts b, each provided with a rack d, a short horizontal bolt c provided with a pair of racks e, and a pair of toothed sectors f, each engaging a rack d and one of the racks e. One of the sectors is mounted on a non-circular spindle i operated by a handle h to shoot or retract the bolts simultaneously. The bolts may be locked in shot position by a pivoted member k adapted to engage a shoulder l on the upper bolt b. Member k is operated by a key m engaging in aperture p in the member, and is locked in each of its extreme positions by a key-released tumbler q having a gated aperture t co-operating with a projection s on the member k.
Patent GB-1277201-A (GB)
Title: Improvements in semi-conductor components
Inventor: MCCOLL JOHN DUNCAN
IPC: H01L23/051
Filed: 1968-05-24
Abstract: 1277201 Semi-conductor devices ENGLISH ELECTRIC CO Ltd 12 Aug 1969 [24 May 1968] 24902/68 Heading H1K A semi-conductor wafer is sandwiched between two massive thermally conductive members by means of a cap secured to one member and embracing and applying spring pressure to the other member, the two members being joined by a hermetically sealed insulating envelope and the two members having cross-sections not substantially less than that of the wafer throughout their extent within the sealed envelope. As shown, Fig. 1, an SCR comprises a wafer 1 resting on a copper cathode contact member 2 and having its upper face contacted by a second copper contact member 3 having a bore for an insulated gate contact electrode 4. The members 2, 3 are urged towards one another by means of belleville-type spring washers 8 and a metal cap 11 which screws on to a ring 12 brazed to member 2. The cap 11 is insulated by means of ceramic caps 9, 13. The envelope comprises a ceramic ring 15 joined to the members 2, 3 by discs 17, 18; 6, 16 which are soldered to respective members and ring as appropriate and then joined by welding at 19 and 20. Large area heat sinks 22 may be soldered or shrunk on to the members 2, 3. In a modification, Figs. 2 and 3 (not shown), the spring washers are omitted and the metal cap (23) has circumferential slots to increase its resilience so that it forms a spring. The semi-conductor device may be a diode instead of an SCR and the metal cap may be crimped on to the lower body. The contact members 2, 3 may be provided with rims or pips to locate the semi-conductor wafer. Reference has been directed by the Comptroller to Specification 992,472.
Patent GB-636769-A (GB)
Title: Improvements in and relating to the flow of water through parallel circuits of forced recirculation water-tube boilers
IPC: F22B29/02
Filed: 1947-09-11
Abstract: 636,769. Forced flow steam boilers. LA MONT INTERNATIONAL ASSOCIATION, Ltd., and BOWER, F. W. Sept. 11, 1947, No. 24942. [Class 123(ii)] In a forced-circulation water-tube boiler including an upper steam-and-water drum 1, one or more circulating pumps 3. and several parallel circuits each comprising a number of tubes connected in parallel between lower headers 11, 12, 13 ... and upper headers 23, 24, 25 . . . or the drum 1, some of the said circuits are provided with one or more pressure-reducing orifice plates and/or nozzles for controlling the fluid flow therethrcugh. Thus, in the circuit comprising the pump discharge pipe 36, inlet header 16, parallel tubes 8 and drum 1, an orifice plate 49 is fitted in the pipe 36 adjacent the header 16 and two nozzles 47, 48 are arranged in series at or near the inlet of each of the tubes 8. The circuit including the header 11 is provided only with an orifice plate 41 in the pump discharge pipe 31, and that including the header 17 with two such plates 50, 51. Other arrangements comprise a single nozzle 40 and a pair of nozzles 52. 53 respectively in the tubes 6, 10 associated with the headers 15, 18, and an orifice plate 44 in the pump discharge pipes to the headers 12, 13, 14 with a nozzle 39 in each of the tubes 5 leading therefrom.
Patent GB-1184554-A (GB)
Title: Fluid Pressure Governors.
Inventor: BURRETT KENNETH FREDERICK
IPC: G05D16/06
Filed: 1966-06-04
Abstract: 1,184,554. Valves. UNITED GAS INDUSTRIES Ltd. 5 June, 1967 [4 June, 1966], No. 24999/66. Heading F2V. A fluid pressure regulating valve, adapted to be associated with a gas operated appliance, comprises a casing formed of two parts, the lower part 1 carrying the inlet and outlet connections 5, 2 respectively, and the upper part 6 having attached to it, by means of a U-shaped sheet metal belt 24, an annulus 10 with a diaphragm 12 being interposed between the two, the two casing parts being removably secured together by bolts 26. Depending from the annulus is a cast or moulded cylindrical member 15 having formed therein a series of spaced apertures 29 and carrying a valve seat 16 engageable by a closure member 27 carried by, and depending from the diaphragm 12, a further diaphragm 13 extending between the closure member spindle 18 and the annulus 10. Removal of bolts 26 permits the withdrawal of the various valve components without disturbing the casing lower part 1. Disposed around member 15 is a cylindrical filter 30 which is held in position by flanges 14, 32 and 33, the arrangement being such that fluid from the inlet is forced to pass through the filter before flowing past the valve seat.
Patent GB-1166745-A (GB)
Title: Improvements in or relating to Photometer Arrangements
IPC: G01N21/27
Filed: 1967-05-31
Abstract: 1,166,745. Photo-electric photometer. ERNST LEITZ G.m.b.H. May 31, 1967 [June 2, 1966], No. 25057/67. Heading G1A. In a photo-electric photometer a digital counter is driven at a rate dependent upon the intensity of a sample radiation beam for a length of time determined by the intensity of a reference radiation beam. In one arrangement shown in Fig. 1a sample dosimeter glass 21 and a reference dosimeter glass 11 are irradiated with ultraviolet light from a mercury vapour discharge lamp 9 and emit orange light which is received respectively by two photo-multipliers 23 and 13. The photo-multiplier outputs each drive a relaxation oscillator 241, 141 comprising a capacitor, gas discharge tube and resistor. The sample glass oscillator 241 drives a digital counter 27 until the gas discharge tube 15 of the reference glass oscillator 141 discharges for the first time and operates relay 18 to shut down the photometer. The irradiation of the dosimeter reference glass need not be known as the photometer is calibrated using a standard sample dosimeter glass. In an alternative arrangement Fig.2 (not shown) a single photometer is sequentially irradiated with sample and reference orange light beams and its output synchronously passed to sample and reference oscillators. To achieve this sequential irradiation of the photometer an apertured shutter may be placed before the photometer to alternately pass the orange sample and reference beam Fig. 4 (not shown). Alternatively ultraviolet light may be directed alternately to the sample and reference glasses either by an oscillating or rotating mirror Fig. 3 (not shown) or oscillating prism Fig. 3a (not shown), or by alternately energizing two lamps.
Patent GB-616043-A (GB)
Title: Brake adjustment
IPC: F16D65/46
Filed: 1946-08-22
Abstract: 616,043. Drum brakes. TIMKEN-DETROIT AXLE CO. Aug. 22, 1946, No. 25062. Convention date, Sept. 4, 1945. [Class 103 (i)] In brakes such as described in Specifications 576,503 and 598,626, comprising a pair of shoes each rockably and slidably mounted upon an actuating lever so as when applied, to engage at one end or the other according to the disection of rotation of the brake drum, an abutment which is independent of the lever, adjusting means are provided adapted simultaneously to adjust the fulcrum of the two levers and the adjacent abutments for the shoes. The web 24 of each brake shoe is disposed between a pair of'plates 18 which form a lever fulcrummed on a pin 45, and is rockable upon the curved surface of a thrust block 26<SP>1</SP> which is slidable upon the flat surface of a saddle bar 23 secured to the plates. A spring 29 urges the shoe web against the block 26<SP>1</SP>. The shoes have surfaces 27 adapted to engage abutments 16, 17 pivotally mounted on pins 12, 13 carried by the fixed foundation plate 10. The levers 18 are connected at 22 to the pistons of a hydraulic cylinder 20 mounted on a bracket 21 supported on the pins 12, 13 which also carry a tie member 30 serving to hold the levers and shoes in place. The fulcrum pins 45 are each carried by a screwed rod 40 which has a circular head 42 upon which is rockable an abutment 44 adapted to be engaged by a surface 28 on the shoe web. Each rod 40 screws into a sleeve 37 rotatable but not axially movable in a part 36 of a housing 34 secured to the foundation plate 10 by screwed studs 33. The sleeves are arranged to be simultaneously rotated to advance the rods 40 and thus to adjust the levers and the abutments 44 to compensate for wear of the shoe linings 25, by a bevel gear 59 having teeth 53 meshed with teeth on the ends of the sleeves 37. The gear 59 is rotatable by a shaft 49 having a polygonal post 52 extending through the gear and a head 49<SP>1</SP> by which the shaft may be turned from the outerside of the plate 10. The housing 34 has a removable cover plate. Specification 481,665 also is referred to.
Patent GB-1127831-A (GB)
Title: Improvements relating to the coating of metals
Inventor: MAYHEW JOHN THOMAS
IPC: C23C2/20
Filed: 1965-06-14
Abstract: 1,127,831. Continuous hot dipping process. NATIONAL STEEL CORP. June 14, 1965, No.25065/65. Heading C7F In a continuous hot dip process for coating strip such as steel with a metal such as Zn, the weight of the applied coating metal is controlled by passing the strip through a control zone above is applied across the full width of each of the the surface of the molten coating bath in which a stream of hot gas such as super-heated steam strip faces to impinge substantially perpendicularly i.e. 5 degrees above or below the perpendicular, the amount of gas impinging on the strip being controlled to obtain the required uniform coating weight. As shown in Fig.1 the strip 18 after passing through cleaning and/or annealing apparatus 12 passes via controlled atmosphere chute 14 into the molten bath 16. The strip passes through a controlled temperature zone 20 at the exit zone of the bath, the temperature being controlled by tubes 21 at 800‹ - 860‹F. The nozzles 24, 26 supplying the hot gas at 500‹ - 1500‹F. are supported in such a way that the angle of impingement of the gas, the height above the bath, the gap between the nozzles and the gap between the nozzles and the strip can all be adjusted. The temperature of the gas supplied is continuously measured and controlled and the coating weight of metal on the strip is also continuously measured and is controlled by either varying the rate of gas flow to the nozzles or by adjusting the distance of the nozzles from the strip. Different coating weights can be applied to each side of the strip by adjusting the above variables.
Patent GB-854468-A (GB)
Title: Tunneling device
Inventor: MORLAN ERWIN ANGLE
IPC: E21D9/10
Filed: 1958-08-05
Abstract: 854,468. Tunnelling machines. HUGHES TOOL CO. Aug. 5, 1958. No. 25089/58. Class 85 [Also in Group XXI] . A plurality of cutter assemblies 13 are slidable radially on a rotatable cutter head 7. Each cutter assembly 13 carries a rotatable frusto-conical cutter 13<SP>1</SP>, 13<SP>11</SP> which may have fixed or detachable cutting teeth. The cutter may be actuated by rotating the cutter head 7 or preferably by incorporating a prime mover in some or all of the cutter assemblies 13 whereby rotation of the cutters 13<SP>1</SP>, 13<SP>11</SP> against the working face rotates also the cutter head 7. The main frame 4 is mounted on mobile carriages 2 and 3 and formsalso the cylinder of a jack 1, whereof the piston rod 5 carries other jacks 36, 38, 39 and shoes 34 forming an anchor which may be engaged with the walls of the bore to resist the operating thrust. The machine is advanced into the bore by operation of the jack 1 optionally supplemented by power applied to the wheels of the carriages 2, 3. The rotatable cutter head 7 carries spoil buckets 26 which discharge into a hopper 28 and thence via a conveyer or belt 29, hopper 30 and shoot 31 into a truck 32. Fine dust is removed from the working face by suction means through the nozzles 33 and transferred through the conduit 44 to truck 32.
Patent GB-850191-A (GB)
Title: Improvements in or relating to methods of metallizing surfaces of ceramic bodies
Inventor: HERBST HENRY
IPC: C04B37/02
Filed: 1958-08-06
Abstract: The surface of a ceramic body is metallised by forming thereon a layer of metal comprising manganese either alone or with a smaller proportion by weight of one or more of molybdenum, nickel, iron, tungsten, chromium and cobalt, and firing the layer in a non-oxidising atmosphere to a sufficient temperature to bond it in position.  In a modification, one or more of the metals may be applied in the form of oxide or other compound which is subsequently reduced to the metal on firing in a reducing atmosphere.  The layer may be applied as a paint by suspending finely-powdered metals in an organic binder.  The binder used in the example is prepared by dissolving pyroxylin in ethyl lactate. The process is applied to the joining of ceramic bodies to metal bodies or other ceramic bodies. Specification 850,190 is referred to.ALSO:The surface of a ceramic body is metallized by forming thereon a layer of metal comprising manganese either alone or with a smaller proportion by weight of one or more of molybdenum, nickel, iron, tungsten, chromium and cobalt, and firing the layer in a non-oxidizing atmosphere to a sufficient temperature to bond it in position.  When a plurality of metals are used, the layer initially applied may be a single homogenous coating or may be constituted by a number of sub-layers of different compositions. The metals may be applied (1) by evaporation or sputtering, (2) as a paint by suspending finely-powdered metals in an organic binder, (3) in the form of a foil, e.g. a composite foil made by electroplating one of the metals with one or more layers of other metals, or (4) in the form of oxide or other compound which is subsequently reduced to the metal on firing in a reducing atmosphere. Bodies metallized in this may may be joined to metal bodies or to other similarly metallized ceramic bodies by soldering or brazing. Alternatively, two ceramic bodies may be joined in a single operation by interposing a layer of manganese &c. between two matching surfaces and then firing.  The invention is applicable to the joining of ceramic bodies for use as envelopes for semi-conductor devices or, according to the Provisional Specification, in the manufacture of thermionic valves.  Specification 850,190 is referred to.
Patent GB-934163-A (GB)
Title: Treatment of vessels used for holding molten metal
Inventor: DUCKETT RICHARD GERALD
IPC: F27D25/00
Filed: 1961-07-11
Abstract: A powdered flux, which is sprayed on to the walls of a vessel for molten metal, particularly aluminium alloys, and allowed to melt in situ to remove contamination, comprises 30-50 parts by weight of NaCl, 30-50 parts by weight of KCl and 20-40 parts by weight of a fluoride.  To remove residues of aluminium, the flux has the composition NaCl 40 parts by weight, KCl, 35 parts by weight, and cryolite, 25 parts by weight.
Patent GB-1404823-A (GB)
Title: Frequency shifted modulated carrier protective relaying system with amplitude modulated voice communication
IPC: H02H1/00
Filed: 1972-05-30
Abstract: 1404823 Carrier current protection WESTINGHOUSE ELECTRIC CORP 30 May 1972 [29 June 1971] 25220/72 H2K [Also in Division H4] Transmission system, e.g. for conveying signals indicating phase relations of a power supply, or a circuit breaker trip signal, together with another signal, transmits the other signal as amplitude modulation of a carrier and the phase, or trip, signal as frequency modulation of the same carrier, with the band of the amplitude modulated carrier limited in the low frequency region to prevent interference with the low frequency phase or trip frequency modulated signal, and the modulation depth limited, by limiting the modulating signal, to prevent instantaneous carrier level falling below a predetermined minimum guard signal level. As described the a.m. signal is speech, with low frequencies below 500 Hz suppressed, or a ring- ing signal at 350 Hz. Fig. 1 shows one embodiment in which under normal conditions transmitter 24 transmits a guard carrier at a low power, e.g. 1 W. If a fault occurs contacts 34 close to cause the carrier power to be raised to 10 W. and the carrier frequency to be changed by 200 Hz. Should telephone communication be required the handset is lifted operating hook switch 44 which at 45 causes the carrier power to be changed to 4À35 W. Closure of switch 49 causes a ringing signal of 350 Hz to be sent as amplitude modulation of the carrier and speech communication can be effected, via amplifier 40 and filter 42, by amplitude modulation of the carrier. At the receiver the discriminator 1 detects frequency modulation of the carrier and detection of the guard frequency or the trip frequency to allow appropriate inhibition or operation of the alarm bell and trip relay. Receiver 3 detects amplitude modulation and filter 16 passes speech signals to handset 14 and filter 22 passes 350 Hz ringing signal to bell 18. A modulation circuit is described, Fig. 3 (not shown), which prevents amplitude modulation to such a level as would allow the instantaneous power to fall below the 1 W. guard signal level. In an alternative transmitter receiver, Figs. 6, 7 (not shown). The carrier is normally transmitted at the 10 W. level and the mark space ratio, or phase of the frequency modulating waveform is varied to convey power frequency phase information or fault indication with the power level being dropped to 4 W. for a.m. telephone transmission or ringing, and automatic switching to the 10 W. level on occurrence of a fault.
Patent GB-959890-A (GB)
Title: Booster-assisted hydraulic operating systems
Inventor: DAVIS JOHN WALTER
IPC: B60T13/24
Filed: 1959-07-23
Abstract: 959,890. Fluid pressure braking systems. GIRLING Ltd. July 22, 1960 [July 23, 1959], No. 25260/59. Heading F2F. [Also in Division F1] A booster-assisted hydraulic operating system, such as a braking system, comprises a manuallyoperated member 34 which actuates a piston 23 or the like for displacing fluid from a master cylinder 10 and, at the same time, actuates a valve or valves 47, 48 controlling the energization of a booster 16, 17 actuating another means 18 other than the piston 23 for increasing the displacement of fluid from the master cylinder when the booster is energized. The means 18 may be a hollow piston-rod which is secured to a piston 17 in the cylinder 16 of the booster, the cylinder being connected by a passage 38 to a valve chamber 22 which, at one end, has a valve 48 co-operating with a recess 44 joined by a passage 43 to a source of vacuum and connected by a passage 51 to a cylinder 52, the vacuum causing the rod 54 of a piston 53 in the cylinder to engage a groove 55 in a sleeve 37 so that the sleeve moves with the booster piston 17. The opposite end of the valve chamber has a valve 47 which co-operates with a recess 41 connected by a passage 39 to atmosphere. The valves 47, 48 are carried by a reduced part of a rod which is formed with the piston 23 and connected to the operating member 34. In the inoperative position, the valve 48 is closed and valve 47 is open to connect the booster cylinder to the atmosphere. Movement of the rod 34 causes the piston 23 to displace fluid from the master cylinder 10 through a port 14 leading to the brake cylinder and reverses the valves 47, 48 so that the vacuum is connected to the cylinder 16 and the piston 17 moves the hollow rod 18 to displace additional fluid from the cylinder 10. The initial movement of the piston also actuates a valve 27 to close a passage 12 leading from a reservoir 11 providing liquid to make-up for losses caused by leakage. In the event of failure of the source of vacuum, the piston-rod 54 is disengaged from the groove 55 to permit actuation of the piston 23 on its own. In other embodiments, the manually-operated and booster-operated pistons are separate and parallel, or the booster may move the master cylinder in the opposite direction to the manually-operated piston.
Patent GB-1398765-A (GB)
Title: Polishing agent and method of producing same
IPC: C09C1/68
Filed: 1972-05-31
Abstract: 1398765 Sodium zirconium silicates TRANSELCO Inc 31 May 1972 [23 June 1971] 25524/72 Heading C1A A glass polishing agent consists of sodium zirconium silicate having a composition of (0À1-1À1 Na 2 O) (ZrO 2 ) (SiO 2 ) an average particle size of 0À7-0À8 microns with a maximum particle size of 8-10 microns. It may be produced by reacting NaOH or NaCO 3  with ZrSiO 4  at a molar ratio of 0À1 to 0À6 Na 2 O to ZrSiO 4  at between 2000 and 2300 F. for 6-12 hours and then milling to the desired particle size. Phosphoric acid may be added during the milling to control the pH at 7-8. A preferred silicate comprises 58% ZrO 2 , 28% SiO 2  and 14% Na 2 O.
Patent GB-358212-A (GB)
Title: Improvements in or relating to calculating devices
IPC: G06G1/00
Filed: 1930-08-27
Abstract: 358,212. Calculating-apparatus. CROSS, E., 1, Cedars Road, Clapham Common, London. Aug. 27, 1930, No. 25547. [Class 106 (i).] Slide-rules.-A device of disc form for calculations relating to amounts, weights and prices and percentages comprises a rotatable disc with a scale A representing quantity or weight divided into fifteen parts, a concentric scale B representing monetary units arranged in two circles the outer of which has markings sixteen times as great or one-sixteenth of those of the inner circle, and a transparent cursor F with a central radial reading line. The scale A is provided with an index arrow G and an inner circle of graduations is provided for determining percentages.
Patent GB-256181-A (GB)
Abstract: 256,181. Malaval, P., and Paquelier, R. P. E. Aug. 3, 1925, [Convention date]. Addition to 179,958. Ordnance tubes; built-up.-The increase in the elastic limit of the lining tube described in the parent Specification relatively to the elastic limit of the barrel is obtained by a self-hooping operation which results in a cold hardening action and allows the difference between the elastic limits to be made smaller.
Patent GB-1492686-A (GB)
Title: Process for preparing thiazolidini-azetidinone derivative
IPC: C07D513/04
Filed: 1975-06-17
Abstract: 1492686 Thiazolo[5,4-b]azetidinones SOC FARMACEUTICI ITALIA SpA 17 June 1975 [21 June 1974] 25670/75 Heading C2C Compounds (I), where W is hydrogen or an optionally substituted aliphatic or an aromatic, arylaliphatic or acyl residue; and R is hydrogen or alkyl, alkenyl or cycloalkyl of up to 12 carbon atoms optionally substituted by one or more free or protected hydroxy or amino groups, cyano or nitro or is thienylmethyl, furylmethyl, naphthylmethyl, cyclohexylmethyl or cyclohexadienylmethyl or is a group (II), (III) or (IV), where X is hydrogen, halogen, optionally protected hydroxy or amino, or C 1-4  alkyl, nitro or cyano; n is 0, 1, 2, 3 or 4 ; Y is protected hydroxyl, amino or carboxyl and each of A<SP>1</SP> and A<SP>2</SP> is hydrogen or C 1-4  alkyl, are made by reducing compounds (VIII) with sodium cyanoborohydride under acidic and non-hydrogenolytic conditions.