baber/WOPTO huggingface dataset:
Patent GB-1525493-A (GB)
Title: Angular coder for encoding the crankshaft angle of an internal combustion engine
IPC: G01D5/245
Filed: 1975-10-21
Abstract: 1525493 Frequency detectors; pulse frequency changing DUCELLIER ET CIE 21 Oct 1975 [24 Oct 1974] 43070/75 Headings H3A and H3T [Also in Division G1] In a shaft angular encoder (see Division G1) a tachometric generator 4, in use, receives a first pulse train at a transistor 28 and through a pair of transistors 18, 25 coupled by a filtering circuit 21, 23, 24 produces a constant current output which is an analogue of the frequency of the pulse train. The output is fed to an oscillator stage 5 wherein a capacitor 7 is periodically charged and discharged to provide a second pulse train at the output of the oscillator stage 5. The values of the circuitry of the oscillator stage 5 are such that the frequency of the second pulse train is higher than and a multiple of the first pulse train. As shown the first base 13 of transistor 6 is utilized in the pulse shaping circuit. Alternatively the other base of transistor 6 may be used (Fig, 3, not shown). In a further embodiment (Fig. 4, not shown) pulses are taken directly from the capacitor 7 and amplified.
Patent GB-981899-A (GB)
Title: Improvements in an improved method for securing metal tips to the body of cutting and like tools or teeth to the body of a worm or other gear wheel
Inventor: ATTACHED ROBERT RUSSELL DRAWIN
IPC: B23B27/18
Filed: 1962-11-15
Abstract: 981,899. Mineral-mining picks. HALL & PICKLES Ltd. Nov. 14, 1963 [Nov. 15, 1962], No. 43168/62. Heading E1F. [Also in Division B3] A tip B is secured to the body A of a cutting tool by pressing the tip into a bore a and deforming a slug c of ductile metal or a plastics material to fill the space between the tip and the bone. The shank b may be plain, ribbed, fluted, knurled, serrated or splined.
Patent GB-1039590-A (GB)
Title: Refrigerating apparatus
IPC: A23G9/16
Filed: 1964-10-23
Abstract: 1,039,590. Refrigerating; defrosting; ice cream freezers. ST. REGIS PAPER CO. Oct. 23, 1964 [Oct. 25, 1963], No. 43380/64. Heading F4H. Refrigeration apparatus, e.g. for freezing icecream, comprises an open-ended chamber A formed of a heat transferring wall 12 and a second chamber 13 formed of a lower portion 11a of a casing 11 and a heat transferring wall 14, this wall including a plurality of tubes 17 projecting into a third chamber 18 but opening into the chamber 13, the wall -14 having a surface area substantially greater than the external surface area of the first chamber. The second and third chambers contain refrigerants B and C respectively. The substance to be cooled passes through chamber A and its heat is absorbed through walls 12 by refrigerant B which volatilizes, the vapours condensing in the tubes 17 and refluxing back into the chamber 13. The heat given up by the condensing vapours is absorbed by the refrigerant C. The chamber 13 is in communication with a collecting tank 20 by a tube 21, the tank and chamber also being connected through a conduit 22 containing a valve 23. When the apparatus is inoperative the valve 23 is open and the pressure within the tank and the chamber is equalized, whereupon the refrigerant B flows by gravity into the tank. The refrigerant is returned to chamber 13 by first closing valve 23 and then energizing a heating element 24, operated through switch 26, whereby the refrigerant volatilizes, the pressure generated forcing the refrigerant up through tube 21. Refrigerant vapours which collect in the upper portion of chamber 18 are sucked through conduit 30, the pressure in the conduit being regulated by a valve 31, and the vapours led to a secondary refrigerating system, including a compressor and condenser, which is not shown. The operating pressure in chamber 18 is controlled by valve 33 in conduit 32. An electrically operated valve 34 is automatically closed with the valve 23, thereby shutting off conduit 32 when the apparatus is made inoperative. The valves 23 and 34 are operated together by a rod 43 in communication with the valve 23 and a double throw switch 42. Rapid defrosting of chamber 18 is obtained by opening valve 38 by switch 40 which permits hot gas into the chamber. In an alternative embodiment of the invention, Fig. 3 (not shown), the third chamber is formed by a series of tubes passing through the second chamber and the heat conducting wall of the second chamber is constituted by the walls of these tubes.
Patent GB-1094169-A (GB)
Title: Multiple stage, hydraulic jet propulsion apparatus for water craft
Inventor: ASCHAUER GEORGE REISCH
IPC: B63H11/11
Filed: 1966-09-29
Abstract: 1,094,169. Marine jet propulsion. TWIN DISC CLUTCH CO. Sept. 29, 1966 [Oct. 13, 1965], No. 43629/66. Heading B7V. [Also in Division F1] In a multi-stage marine hydraulic jet propulsion unit U, a first stage impeller 10 fixed to the drive sleeve 8 is driven by drive shaft 6 through gear reduction unit 7 and a second stage impeller 14 coaxially mounted aft of the first stage impeller 10 and fixed to the driveshaft 6 rotates faster than the first stage impeller. The housing H closely surrounds and complements the peripheral shape of the impellers and stator blades 14, 15 are fixed within the housing respectively between the impellers and aft of the second stage impeller to straighten out the flow of water.
Patent GB-1008143-A (GB)
Title: Improvements in or relating to coupling devices for use between a shaft and a concentric member
IPC: F16D23/06
Filed: 1961-12-06
Abstract: 1,008,143. Positive clutches. REGIE NATIONALE DES USINES RENAULT. Dec. 6, 1961 [Jan. 10, 1961], No. 43730/61. Heading F2C. Positive clutch rollers 5 carried in recesses 3 in the hubs of gear pinions 7, 17 are pressed against the action of return springs 4 into grooves in a shaft 6 for clutch engagement when a sliding sleeve 19, having cams 12 coacting with balls as rollers 1 which act on the roller 5, is moved to the left or right. In Figs. 1-6 (not shown), the clutch is balk-ring synchronized and the sliding sleeve 19 acts on the balk rings on which the cams 12 are formed. The passages carrying the balls 1 may be inclined and the roller carrying recesses 3 may be shaped so that during clutch engagement the reaction on the sliding sleeve 19 is negligible for one direction of rotation. In Figs. 9-11 (not shown), two rollers are carried by each recess 3 and the reaction on the sliding sleeve 19 is negligible for both directions of rotation.
Patent GB-1155707-A (GB)
Title: Improvements in and relating to the Application of Closures to Containers
Inventor: DAVIES GLANVILLE
IPC: B67B3/12
Filed: 1965-10-15
Abstract: 1,155,707. Capping bottles &c. THOMAS HUNTER Ltd. 1 July, 1966 [15 Oct., 1965], No. 43750/65. Heading B8T. The throat 7 of a die for applying a cap 3 to, for example, a glass jar tapers over its lower portion 8, and is made of a tough resilient plastics material such as nylon or polytetrafluorethylene. A spring-loaded plate 1, mounted centrally within the throat 7, holds the cap 3 on to the neck 4 of the jar on initial descent of the die relative to the jar, and on further descent the skirt of the cap is pressed into conformity with the outer shape of the neck 4. The neck 4 may carry a screw-thread 10, in which case the resilience of the throat 7 allows a bead 9 on the cap skirt to remain uncrushed as the cap 3 is pressed down over the neck 4. Thus in the final form of the cap 3 the only parts of the bead 9 which are crushed are the parts actually lying against the projecting regions of the thread 10. A multi-start threaded jar may be closed in this way. Alternatively the jar may have a single outward flange around its mouth. The inner surface of the lower portion 8 of the throat 7 may be smooth, or may be provided with serrations (11), Fig. 2 (not shown), to form a serrated edge to the cap.
Patent GB-1516518-A (GB)
Title: Regeneration method for gravity-flowing particles of deactivated hydrocarbon conversion catalyst
IPC: B01J38/42
Filed: 1975-10-27
Abstract: 1516518 Catalyst regeneration UOP INC 27 Oct 1975 [13 Nov 1974] 44084/75 Headings B1E and B1F Deactivated hydrocarbon conversion catalysts comprising a platinum group metal and halogen on a refractory inorganic oxide support are regeneration in a gravity-flow moving bed regeneration zone 1 by (i) introducing a first air stream 20 directly from a source external to the regenerator to an upper carbon-burning zone 2 (defined at its lower end in the illustrated embodiment by baffles 4) and maintaining at a temperature to burn-off substantially all of deactivating carbon deposits on the catalyst; (ii) passing the treated catalyst to a halogenation zone 5 and reacting with a steam/halogen or halogen-containing compound mixture (introduced via line 31); (iii) passing the halogenated catalyst to a drying zone 7 wherein it is contacted with a further heated air sream from an external source 23; and (iv) withdrawing regenerated catalyst 24 for reuse. Suitably, the ratio of air in the first stream 20 to that in the further stream 23 is at least 1 to 1. Flue gas withdrawn (by line 15) from the burning zone may be recycled without treatment except for cooling. The catalyst may contain a further metal, e.g. 0.01 - 5% wt. of Tc, Re, V, Co, Ni, Au, Ge, Sn, Pb, Bi in addition to the platinum group metal, the latter suitably being present in an amount of 0.01 - 2% wt. The catalyst may contain 0.1 - 5% wt. halogen and be supported on alumina, silica, zirconia, hafnia, boria, thoria or mixtures thereof.
Patent GB-1402905-A (GB)
Title: Motor control system for governing the operation of the compressor  motor of a refrigeration system
IPC: H02H7/22
Filed: 1972-09-25
Abstract: 1402905 Control of A.C. motors; protective arrangements CARRIER CORP 25 Sept 1972 [12 Oct 1971 (2)] 44232/72 Headings H2J and H2K A control system for a motor includes two tripping circuits for operating a relay controlling the supply of power to the motor each of which is responsive to signals exceeding a predetermined magnitude and a reset time delay operable to prevent re-energization of the relay for a period after the operation of a trip circuit. In the circuit shown the motor is used to drive a refrigerator compressor and has a first trip circuit which is responsive to a motor overload and a second trip circuit which trips the motor supply if there is a rise in refrigerant temperature. The arrangement is designed to prevent relay contact damage when chatter occurs caused by thermostat contact bounce. Relay coil 23 is connected in series with a triac 56 and thermostat contacts 22 and to a supply through terminals 90, 91 and thus the motor operates whenever contacts 22 are closed and the triac 56 is conducting. A triggering voltage for triac 56 is provided by the normally conducting darlington pair 57 and this pair can be switched off by making the darlington pair 71 conductive to form the first trip circuit or by making either of transistors 83, 88 conductive as the second trip circuit.  Motor overload current tripping.-Terminals 60, 61 are in series with the common lead of the motor windings and a D.C. voltage is produced by rectifier bridge 63 from current transformer 62. The voltage is limited by diode 68 and causes capacitor to rapidly discharge through resistor 65 and thus makes pair 71 conductive to operate the tripping circuit. When triac 56 switches off the voltage across resistor 67 and across resistors 73, 74 will change to increase the current through pair 71 and reduce the reset level of pair 71. Capacitor 66 will slowly charge through resistor 76 until the reset voltage for pair 71 is reached when pair 71 is made non- conducting and pair 57 will conduct causing triac 56 to conduct if thermostat contacts 22 are closed. Refrigerant temperature tripping.-A change in the resistance of thermistor 80 causes tranistor 83 to conduct and switch off the pair 57 as above. The resetting time in this case will be reduced since capacitor 66 has not been discharged. Thermostat contact operation.-Opening of contacts 22 causes relay 23 to drop and also, because of the voltage across resistor 92, causes transistor 88 to conduct and the pair 57 are switched off as above. Integrator circuit 93, 97 ensures that a time delay is imposed to prevent contact chatter causing relay operation when the contacts 22 close.
Patent GB-995166-A (GB)
Title: Improvements in or relating to electrostatic high speed printers
IPC: G06K15/14
Filed: 1962-11-22
Abstract: 995,166. Developing charge images. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORPORATION. Nov. 22, 1962 [Dec.27, 19611, No. 44270/62. Heading G2H. [Also in Division G41 In an electrostatic printer, paper 12, Fig. 2, passes to an electrostatic printing head 8 and then in turn to (1) a developing station 16 where a mixture of iron powder and a developing powder is brought into contact with the charged paper by a drum 14 carrying a radial arrangement of permanent magnets, (2) a vibrating station 17 to remove any excess powder, (3) a fixing station 43 where the paper is heated by gas burners, (4) a cooling station where the paper is air cooled and (5) a rotatary cutter 22 to a delivery exit.
Patent GB-1477459-A (GB)
Title: Distributing apparatus suitable for use to supply aqueous calcium sulphate alpha-semihydrate suspension to moulds
IPC: B28B13/02
Filed: 1975-10-28
Abstract: An apparatus for distributing aqueous calcium sulphate  alpha -hemihydrate suspension over various casting moulds of casting machines which are adapted to the manufacture of gypsum (plaster of Paris) mouldings consists of a collecting device (4) for receiving the calcium sulphate  alpha -hemihydrate suspension, a movable line (5) which is connected to the flow of the collecting device (4), several chutes (6) which lead to various casting machines, a funnel (11) for collecting excess material, the chutes (6) protruding into the upper region of the funnel, and a discharge line (12) through which liquids containing calcium sulphate  alpha -hemihydrate and running out of the funnel can be recycled to the plaster of Paris preparation equipment. A lifting device (7) is located above the movable line (5) and is frictionally connected with the end of the movable line which faces away from the collecting device. The movable line (5) is furthermore connected to a rotatably mounted pivoting device (8), by means of which the movable line (5) can be moved in a horizontal direction. <IMAGE>
Patent GB-1246634-A (GB)
Title: Active rc filter with transfer zeros
Inventor: BOHME HOLFE
IPC: H03H11/12
Filed: 1968-09-18
Abstract: 1,246,634. Transistor amplifier circuits. RFT MESSELEKTRONIK DRESDEN VEB. 18 Sept., 1968, No. 44357/68. Heading H3T. An active filter having a zero in its transfer characteristic comprises an inverting amplifier and two integrating amplifiers coupled in a closed loop, at least two of the amplifiers being coupled through individual impedances, e.g. resistors R 1 , R 2 , to a common input U e . In the embodiment of Fig. 1, the third amplifier is also connected to the input via resistor R 3 . In an alternative arrangement, Fig. 3 (not shown), one integrating amplifier is connected to the input by a capacitor (C 2 ) and the other is connected to the input by a parallel CR (C 3 , R 3 ). Each amplifier may comprise a common emitter stage followed by a common collector stage (Fig. 4, not shown) or a common collector stage followed by a common emitter, Fig. 5 (not shown).
Patent GB-900839-A (GB)
Title: A new or improved apparatus for cleaning the sealing surfaces of the door frames of horizontal coke ovens
Inventor: RANDELL GEOFFREY EDWARD CHARLE
IPC: C10B43/04
Filed: 1959-12-31
Abstract: 900,839. Cleaning coke oven doors. WOODALL-DUCKHAM CONSTRUCTION CO. Ltd. Dec. 19, 1960 [Dec. 31, 1959], No. 44434/59. Class 99(2). Cleaning apparatus for the sealing surfaces of doors or door frames of a horizontal coke oven comprises a pair of vertically movable carriages 18, Fig. 1, carrying scrapers for the sides of the sealing surfaces and a pair of horizontally movable carriages 23, 24, with scrapers 25, 26, for the top and bottom of the sealing surfaces, the scrapers being supported by an open frame 11 which permits the pusher ram 15 of the coke oven to pass therethrough. The frame 11 is movable alongside the oven battery to register with any oven door and movable into engagement with the door or door frame by hydraulic rams 10. The carriages 18, each of which carries a pair of scrapers 19, 20, movable into scraping position by jacks 43, 44, are moved up and down along rails 17 by endless chains 29 driven from hydraulic motors 38 and the carriages 23, 24, are traversed along rails 21, 22, by hydraulic jacks 45, Fig. 2. The carriages 18 perform part of their downward travel with scraper 19 in operation and are then reversed for a short distance and the downward travel completed with scraper 20 operative. An hydraulic circuit and control system for the apparatus is described in detail. A modified scraper for the side surfaces comprises a carriage 18<SP>1</SP>, Fig. 8, having a guide slot 100 in which moves a block 101 carrying the scraper 19<SP>1</SP> and attached through a pin and slot connection 103<SP>1</SP> to an arm 103. At the beginning of scraping a ram 102 moves arm 103 whereby block 101 is moved to the bottom of block 18<SP>1</SP> so that the scraper 19<SP>1</SP> scrapes the top portion of the side of the frame. The carriage 18<SP>1</SP> is then moved downwards to complete the scraping with scraper 19<SP>1</SP> in its lowered position. Specifications 856,095, 857,778, 857,779, 857,780 and 900,840 are referred to.
Patent GB-1100108-A (GB)
Title: A hollow member such as a lamp standard, tubular post or conduit
IPC: B21C37/15
Filed: 1965-10-20
Abstract: 1,100,108. Metal conduits. COMPAGNIE GENERALE DU DURALUMIN ET DU CUIVRE. 20 Oct., 1965 [30 Oct., 1964], No. 44507/65. Heading F2P. [Also in Division E1] A tubular aluminium alloy conduit 1 having an aperture 6 for an inspection door is internally reinforced adjacent the aperture by a lining 2 comprising a split tube of steel or alloy sprung within the tube 1. The lining 2 has its longitudinal split diametrically opposite an aperture corresponding to and overlying the aperture 6 and carries mounting blocks, Fig. 4 (not shown), welded to the edges of the split for supporting electrical equipment. A sole plate 3 is welded to the tube 1 and lining 2. In manufacture, the lining is contracted in diameter for insertion within the tube by means of tongs.
Patent GB-988343-A (GB)
Title: Improvements in and relating to bagging apparatus
IPC: B65B31/04
Filed: 1963-11-12
Abstract: 988,343. Packaging-machines. SCHWEIZERISCHE INDUSTRIE - GESELLSCHAFT. Nov. 12, 1963 [Nov. 12, 1962 (2)], No. 44535/63. Heading B8C. In a machine in which a web is tubed about a mandrel 1 through which increments of material are fed and enclosed in the tube by transverse seams, the mandrel includes means for applying suction while the transverse sealing jaws are closed, to assist the material in flowing down the mandrel. Suction is applied through an arcuate passage 11 by a pump 9 while the jaws 8 move down with the tube. Lowering of a valve plate 14 connects the pump to atmosphere when the jaws are open. The device is particularly applicable to packaging potato crisps. The apparatus may have in the hopper a rotatable crusher which breaks up any crisps lodging at the top of the mandrel (Fig. 3, not shown).
Patent GB-1272507-A (GB)
Title: Apparatus for coding the value of an integrated measurement
Inventor: NYFELER A
IPC: G01D5/249
Filed: 1970-09-18
Abstract: 1,272,507. Counters; shaft encoders. ELECTROMETRE S.A. 18 Sept., 1970 [6 Nov., 1969], No. 44661/70. Headings G4D and G4H. Each time a meter advances by a predetermined amount a bimetallic element is heated to advance a coding device. The bimetallic element 7 is coiled and current is passed through the right half only at each incoming signal, the resulting imbalance turning a shaft 13 and driving a coding disc 21 through a ratchet mechanism. Carry from disc 21 to a higher disc 31 is by deep notch means. The coding is binary for read-out to a remote station.
Patent GB-945269-A (GB)
Title: Balanced frequency detector circuit
IPC: H03D3/00
Filed: 1961-12-13
Abstract: 945,269. Multiplex radio signalling. HAZELTINE CORPORATION. Dec. 13, 1961 [Jam 24, 1961], No. 44688/61. Drawings to Specification. Heading H4L. The system described is the same as that described in Specification 945,267, but the claims differ. Specification 945,268 also is referred to.
Patent GB-447011-A (GB)
Abstract: 447,011. Interrupters. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart, Germany. Sept. 5, 1935, No. 24739. Convention date, Sept. 7, 1934. [Class 38 (v)] An interrupter for ignition apparatus has a rocking member e dis. placeable about a pivot pin c by a cam o against the action of a helical spring k seated on or about the pivotal axis of the rocking member, the arrangement being such that the torsional stress of the spring causes the rocking member to bear against the pivot pin at or near that part of the periphery of the pin against which it is pressed by the cam. Sliding displacement between the movable contact h carried by the member e and the fixed contact b is thereby prevented. In the arrangement shown, the spring k is mounted between the rocking member e and the base-plate a of the interrupter and is held on its axis by a disc p seated in a groove on the pivot pin c. One end of the spring bears against a stop in on the plate a, while the other acts on the rocker e at the point n. The movable contact h is carried by a steel band f bent around and secured to the rocker e, the other end of the band being bent into an eye g which engages the cam. In a modification, the helical spring is arranged in a bore of the pivot pin.
Patent GB-949758-A (GB)
Title: Fluid heater
Inventor: HENSEL WALTER CHRISTIAN
IPC: F24H1/40
Filed: 1962-11-28
Abstract: 949,758. Liquid and gas heaters. UNIVERSAL OIL PRODUCTS. Nov. 28, 1962, No. 44939/62. Headings F4A and F4S. In a fluid heater comprising an enclosure having a lower radiant heating zone and an upper convection heating zone, the lower zone is bounded by a number of curved wall sections 1 which oppose each other, thus forming a linear series of interconnected cylinder-like heating chambers whilst the top of each section is connected by an inwardly tapering wall 5 to a vertical wall 6, the vertical walls forming the straight side walls of the upper zone. A series of top walls 7 form the roof of the upper zone, the enclosure being completed by end walls 12 and a floor 10. The sections which may be prefabricated, consist of steel plates lined with a refractory material 9. They are interconnected by welding or bolting to the flanges of beams 3 and columns 2, the latter being secured to a foundation 23 by base-plates 4. Each of the arcuate sections 1 is provided with vertically spaced, individually controllable burners 17 supplied with oil or gas from headers 18, the burners being designed to direct flame only along the refractory wall surfaces at the side of and above each burner to provide uniform radiant heating for a fluid heating tube bank 13 located between the sections. Hot gases rise into the convection zone 14 in which is located a further bank 15 of fluid heating tubes, the gases discharging through a stack 8.
Patent GB-1517405-A (GB)
Title: Recording sheets
IPC: B41M5/155
Filed: 1976-10-28
Abstract: 1517405 Colour-developer coating compositions FUJI PHOTO FILM CO Ltd 28 Oct 1976 [28 Oct 1975] 44961/76 Heading C4A [Also in Division D2] A colour-developer coating composition contains a dimer of a compound of the general formula wherein R 1 , R 2  and R 3  each represents a hydrogen atom, an alkyl group. an aryl group, an alkaryl group, a halogen-substituted aryl group or an aralkyl group, and n is 1 to 4, and a binder.