baber/WOPTO huggingface dataset:
Patent GB-946647-A (GB)
Title: Gaging apparatus
IPC: G01L7/00
Filed: 1962-07-25
Abstract: 946,647. Pressure gauges; lined dimension gauges. SHEFFIELD CORPORATION. July 25, 1962 [Aug. 16, 1961], No. 28628/62. Headings G1L and G1M. A differential-pressure-responsive device, for use with a pneumatic gauging head A having gauging orifices 10,12, between which a workpiece B is located, comprises a plurality of annular diaphragms held at their puter periphery between spacer members forming part of the housing C and at their inner periphery by spacing members clamped by a threaded bolt 66 between holding portions 62 and 64 to formacentral hub structure spring-loaded downwards against pressure in chamber 72 supplied from a steady pressure source 88. The differential gauging pressures originating from a separate source 14 are applied via conduits 28 and 30 to chambers 32 and 34 respectively whereby the central hub structure is displaced to vary the clearance between its lower portion 64 and a throttle orifice 74 giving pressure variations in chamber 72 read off on the gauge 82 as a function of the gauged dimension of workpiece B. The position of the throttle 76 is so adjusted initially that the gauge 82 will give a constant zero reading for zero differential pressure at different values of absolute pressure.
Patent GB-196637-A (GB)
Title: Improvements in or relating to the utilization of sewage sludge and the like
IPC: C05F7/00
Filed: 1921-10-28
Abstract: As a preliminary step in the extraction of grease, sewage sludge is dried by evaporation, while presenting an extended surface as a film on a heating surface or dispersed in a current of hot gas, matter which would hinder the formation of such extended surface being previously separated from the sludge.  The sludge may be dried as a film in apparatus as described in Specifications 149,055, 180,963, and 181,035, [all in Class 32, Distilling &c.], the vapour given off by the film being used for further drying.  Apparatus as described in Specification 182,157 may be used for drying sludge by means of a current of hot gas in which the sludge is dispersed.  Hard bodies which would hinder the filming or dispersion may be removed by means of the apparatus described in Specification 19847/12, [Class 117, Sifting &c.]. The sludge may be partially dried as a film, and the drying completed by a current of hot gas or in a rotary kiln.  The grease is removed from the dried or partially dried sludge by means of a suitable solvent.  In the Provisional Specification, Specification 24748/11, [Class 34 (ii), Drying systems &c.], is referred to.
Patent GB-484384-A (GB)
Title: Improvements in and relating to air compressing machines
IPC: F04B39/14
Filed: 1937-10-21
Abstract: 484,384. Air compressors. BRIGHTWELL, W. J. Oct..21, 1937, No. 28774. [Class8(i)] A series of compressor cylinders are disposed side by side, each furnished with fins 8 secured to spaced parallel bars 6 supported by a base frame. Their pistons are driven by connecting- rods 10 from a crank-shaft 35 driven through chains and sprockets from a parallel shaft driven by a chain 49. The cylinders are connected by a common cross-pipe 29 and a valved junction pipe with a reservoir. Valves 56 may be closed and the connecting-rods detached for repair of any compressor. The frame support is in parts of different height, so that the cylinder axes are coplanar with the crank-shaft.
Patent GB-870447-A (GB)
Title: Improvements in or relating to jacking appliances
Inventor: PRYKE FORDHAM
IPC: B66F3/24
Filed: 1956-09-20
Abstract: 870,447. Lifting jacks. PYNFORD Ltd. Sept. 20, 1957 [Sept. 20, 1956], No. 28784/56. Addition to 856,612. Class 78 (3). A jack forming a modification of the invention of the parent Specification comprises a load engaging plate L provided with non-rotatable nuts K engaging one or more screws B which are rotatable by worm gearing C, E. The screws are mounted on liquid thrust bearings D and roller bearing G1, and worm E is journalled in a liquid thrust bearing (not shown) similar to bearing D. In a modification (Fig. 3, not shown) the worm-wheels on three screws mesh with two opposite hand parallel worms interconnected by gearing for simultaneous rotation. In a further modification (Figs. 4 and 5, not shown), four screws are rotated by two worms on a common shaft and the liquid thrust bearings supporting the screws can be put into hydraulic communication with one another thereby permitting a small amount of self alignment of the plate L before lifting the load.
Patent GB-358707-A (GB)
Title: Emergency fire escape
IPC: A62B1/06
Filed: 1930-09-26
Abstract: 358,707. Fire-escapes. HILL, H. L., 5, Belsize Park Gardens, Hampstead, London. Sept. 26, 1930, No. 28828. [Class 47 (i).] A fire-escape device comprises a rope 4 and a star-shaped plate 1 which is formed with claws 2 and has secured to it a tubular pillar 3. The rope is passed through the pillar and knotted behind the plate. A conical bucket 5 is secured to the rope by ropes 6, and rubber grips 8 slide on the rope. The knot 4a of the rope may be protected by a cup or disc secured to the plate 1. In use, the plate 1 is placed, for example, at the angle of a window so that the rope hangs freely from the end of the pillar. Descent is then made by the bucket, or by the sliding grips 8. When not in use, the bucket is inverted over the plate, with the ropes coiled inside it.
Patent GB-732570-A (GB)
Title: Improvements in or relating to the saponification of wool wax
IPC: C11D13/02
Filed: 1952-11-14
Abstract: Wool wax is saponified by treating about 100 parts by weight thereof with about 2-30 parts of an hydroxide or hydroxides of calcium and/or magnesium in from about 2.5-25 parts of water under agitation at elevated temperature and pressure.  The hydroxides are preferably formed in situ from the corresponding oxides.  Dolmitic limes may be used.  Accelerators such as a calcium or magnesium soap, e.g. calcium soap of wool wax acids, synthetic detergents, solvents for both wool wax and water, caustic alkalies and alkaline earth hydroxides, may be present. Long chain alkyl sulphates, aryl and alkyl-aryl sulphonates, ethylene oxide condensates, quaternary ammonium cationic detergents, monoethyl ether of ethylene glycol, n-butanol and di-n-propyl ketone are mentioned as accelerators.  Preferably 7.5-25, and optionally 15, parts by weight of water are used per 100 parts of wax.  Up to 10 parts of accelerator per 100 parts of wax are used.  The saponification may be taken to any stage to yield on further treatment and/or isolation soaps especially those of calcium and magnesium, their corresponding free acids and non-saponifiables, e.g. alcohols and hydrocarbons.  The soaps may be separated from non-saponifiables by extraction with acetone or ethylene dichloride and the free acids liberated from the soaps with mineral acids at 130-140 DEG  C.  Saponification may be effected at about 80-150 DEG C. particularly about 130-140 DEG  C.  Examples are provided in which wool wax is treated under pressure at 130 DEG  or 140 DEG  C. with calcium oxide, magnesium oxide, or a dolmitic or blue lime containing both oxides in the presence of certain of the above indicated accelerators.
Patent GB-279262-A (GB)
Title: An improved table fork
IPC: A47G21/02
Filed: 1927-08-15
Abstract: 279,262. Forsyth, M. H., Aug. 15, 1927. Drawings to Specification. Table forks.-The prongs of table forks are made with inclined sides connected by rounded front and back surfaces.
Patent GB-1007367-A (GB)
Title: Force-exerting apparatus
Inventor: MOORE IVAN GEOFFREY
IPC: E21D15/58
Filed: 1963-07-22
Abstract: 1,007,367. Fluid-pressure operated pit props. WESTINGHOUSE BRAKE AND SIGNAL CO. Ltd. July 15, 1964 [July 22, 1963], No. 28890/63. Heading E1E. [Also in Division F2]. Force exerting apparatus which may be employed as a pit-prop comprises an output member movable by a motor until arrested by a load, the motor then exerting a force on the load, and clutch means by which the member is retained in its arrested position, the clutch including two engagable parts resiliently urged together, one formed as a nut carried on a screw member attached to the output member wherein on the movement of the output member the clutch parts are disengaged to allow rotation of the nut on the screw, the reaction to the said force exerted when the output member is arrested causing the clutch parts to engage to prevent rotation of the nut and thus prevent the return of the output member by that reaction, until the clutch parts are positively disengaged. In the hydraulic apparatus shown in Fig. 2 the pump 63 first supplies fluid under pressure in the direction of the right hand arrow through conduits 62, 32 to enter cylinder 9 and move the output member 10 rightwards, disengaging the nut 18 from the face 23 to allow the nut to spin as the screwed part of rod 10 moves through it. The movement of the rod also allows valve 3 to move to close communication between line 59 and lines 50, 57. When the rod 10 is arrested, reaction to the force exerted engages clutch parts 18, 23 to hold the nut stationary and member 10 extended. To release the prop, the delivery of pump 63 is reversed to supply cylinder 28 to move the case 26 with its nut 18 rightwards to free the nut for rotation as the member 10 is returned by rigging springs. Valve 2 also moves, as the case 26 moves away, to disconnect lines 48, 50, and connect lines 60, 61 to allow the fluid to leave cylinder 9. In another embodiment (Fig. 9, not shown) the member moves inwards on application of fluid pressure and the valves 2, 3 are omitted.
Patent GB-1397180-A (GB)
Title: Stop motion
IPC: D04B35/14
Filed: 1973-06-19
Abstract: 1397180 Knitting machines stop-motion STOP-MOTION DEVICES CORP 19 June 1973 [15 Jan 1973] 29064/73 Heading D1C A stop motion for detecting a broken yarn comprises a fly wire 46 held in a first position by a running yarn and biased to a second position, the bias being at a minimum in the first position and increasing progressively as the wire moves to the second position. The stop motion includes a housing having aligned yarn guides 36, 38, 40. A guide 50 attached to the fly wire is aligned with the housing guides. The wire is fixed to a pivot pin 42 carrying an eccentric cam 56, truncated at one side. A belt 72 attached to, and surrounding the cam supports a spring 74. In the first, aligned, position of the wire the torque of the spring on the wire is a minimum. If the yarn breaks the wire is pivoted to the second position with increasing torque, as the point of action of the spring moves further from the pin 42. In the second position of the wire an end flange of the cam contacts a metal strip 84. Power to the machine is thereby interrupted and a lamp 96 illuminated. The position of the strip relative to the cam and hence the response time of the stop motion may be adjusted by a screw 110. The lower end of spring 74 is attached to a rack slide 78 so that its force can be varied by turning a knob 114 fixed to a pinion 112. The broken end of yarn is secured in a catcher 106.
Patent GB-1107126-A (GB)
Title: Material conveying apparatus
IPC: A01K79/00
Filed: 1965-07-08
Abstract: 1,107,126. Delivering measured quantities of granular material. HARBOR BOAT BUILDING CO. 8 July, 1965 [26 May, 1965], No. 29076/65. Heading B8N. [Also in Division F1] Material which may be raised by vacuum e.g. fish suspended in water, is drawn into a chamber 17 from an inlet pipe 18 (Fig. 1, not shown) by sub-atmospheric pressure created in the chamber by a vacuum pump connected to the pipe 19. The degree of vacuum is controlled by a butterfly valve 82 connected to a device 85 sensitive to the level of material in the chamber 17. A continuously rotated valve device comprising vanes 75 discharges the material to an outlet. Dividers 49 guide the material into the vane sectors. The vacuum pipe is also connected by a pipe 68 to a manifold 70 having perforations 73 opening to one vane sector to reduce the pressure therein before it communicates with the chamber 17.
Patent GB-215796-A (GB)
Title: Improvements in or relating to the vulcanisation of india rubber
IPC: C08J3/24
Filed: 1923-06-25
Abstract: 215,796. Dunlop Rubber Co., Ltd., and Twiss, D. F. June 25, 1923. Vulcanizing-compositions. - Self-vulcanizing compositions and solutions contain india-rubber, zinc oxide, sulphur, and zinc or cadmium normal or iso-propyl xanthogenate, either the sulphur or the xanthogenate, alone or in solution or admixture, being added shortly before the composition is required for use, whereupon vulcanization commences without the application of heat. A solution for joining rubber surfaces is prepared by adding either powdered sulphur, sulphur solution, or a solution of sulphur and rubber to a solution of rubber, zinc oxide, and xanthogenate. A dough suitable for filling cuts in tyres is prepared in a similar manner, the volatile solvent being reduced in amount or replaced by cottonseed oil or fluid balata resin. Fillers and colouring materials, such as natural gas black, lampblack, antimony sulphide, iron oxide, refined clay, &c. may be added to the compositions. Specification 177,493 is referred to.
Patent GB-1435078-A (GB)
Title: Slide control mechanisms for machine tools
IPC: G05B19/40
Filed: 1972-06-22
Abstract: 1435078 Automatic control of movement WICKMAN MACHINE TOOL SALES Ltd 4 June 1973 [22 June 1972] 29218/72 Heading G3N An electronic system for a machine tool slide control mechanism comprises a transducer driven from the main shaft of the machine the output of which through a direction sensor, a multi-plexer, pre-set from a control for a required slide operation, and a digital-to-analogue converter controls the power supply to a drive motor for the mechanism. As shown, a stepping motor 22 for a lead-screw 21 of a machine-tool is driven in response to quadrature pulse outputs from a photo-electric transducer 23 driven from the machine-tool spindle not shown. The quadrature outputs are fed to a noise reducer and direction sensor 24, the outputs of which are fed 1) to a rate multiplier 25, responsive to a pre-programmed or a manually set cycle-control 29, so as to modify the position output from the sensor 24 and 2) to a fixed multiplier 27 and a rate divider 28 which modifies the position output in dependence on the control signals. The outputs from paths 1) and 2) are fed to a multi-plexer 26 which, in response to a signal from the control 29, feeds one output to a counter 31 which is also responsive to the direction signal from the sensor 24 to provide an output to a D/A converter 32 which effects an additive or subtractive voltage charge, equivalent to the required feed, in the output fed to drive device 33 providing a power supply pulse train to the stepping motor 22.
Patent GB-510651-A (GB)
Title: Improvements in rotary engines, compressors, and the like
IPC: F02B53/00
Filed: 1938-10-08
Abstract: 510,651. Rotary engines. BREWER, C. E. Oct. 8, 1938, No. 29221. [Class 110 (ii)] [Also in Group XXVII] The engine is provided with a piston rotor c and an abutment rotor d. Inlet and/or exhaust passages j, k, placed in the end walls of the casing co-operate with ports l, m, in the piston rotor which connect with the annular working chamber b. A curved piston e co-acts with a recess g in the abutment. The rotors may be hollow and contain a cooling or lubricating medium. Two or more piston rotors may cooperate with one abutment. Units may be aligned axially to form compression chambers and engines supplied by the compressor. In a modified arrangement two piston rotors, d, d<1>, Fig. 8, with a rotary abutment f between them, supply compressed gas to cylinders p, p<1> of a reciprocating internal-combustion engine. The abutment also controls the outlet of the exhaust gases from the cylinders.
Patent GB-894026-A (GB)
Title: Amplitude limiter
IPC: H03G11/00
Filed: 1960-08-24
Abstract: 894,026. Valve limiting circuits. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Aug. 24, 1960 [Aug. 24, 1959], No. 29258/60. Class 40(6). In an amplitude limiter comprising first and second electron discharge tubes, with a direct connection from the anode of the first tube to the control grid of the second tube, the first tube limits the output for negative going signals while the second tube limits the output for positive going signals. In the embodiment shown a pentode 2 has an input 5 applied to its control grid, the anode being directly coupled to a second pentode 3 which has a bandpass filter 4 in its anode circuit. This arrangement provides for limiting both half cycles of an input signal and the bandpass filter makes the limiter active only over a selected frequency band. The limiter may be used in a pulse receiver radar (Fig. 2, not shown).
Patent GB-951259-A (GB)
Title: Negative resistance diode memory
IPC: G11C11/38
Filed: 1960-08-24
Abstract: 951,259. Electric digital-data-storage apparatus. RADIO CORPORATION OF AMERICA. Aug. 24, 1960 [Sept. 8, 1959], No. 29287/60. Heading G4C. [Also in Division H3] A storage element comprises a voltagecontrolled negative resistance diode, means for switching the diode between its stable states to produce a voltage transient across the diode and circuit means to detect the transient voltage, thereby indicating that the diode has changed its state. Fig. 1 shows the characteristic curve a b c d of a negative resistance diode, the full line 20 representing the load line, the intersections 22, 24 being stable low and high states respectively and the intersection 26 being an unstable state. The diode may be switched between its stable states by short current pulses. As shown in Fig. 2, a D. C. source 56 biases a negative resistance diode as indicated by load line 20. To write a binary digit "1", D. C. sources 30, 38 supply pulses 60, 62, each insufficient but together sufficient to switch to diode to its high state. To write "0", sources 46, 48 supply reverse-bias pulses 64, 66. Read-out may be effected by causing sources 30, 38 to apply pulses 60, 62, and if the diode 34 is in its low state, representing "0", it is switched thereby exciting a resonant circuit 50 which rings, the ringing being detected by an antenna 52. If the diode is in its high state, representing "I", the read-out pulses cause an output of insignificant amplitude and the resonant circuit 50 is not excited. If desired, reverse-bias pulses could be employed for readout. A number of diodes and associated resonant circuits may be connected in a matrix array. Fig. 6 shows a two dimensional array having three rows X 1 ,X 2 ,Z 3 , and three columns y 1 ,y 2 ,y 3 , a common antenna 80 being provided for detecting state changes in the diodes which are at each row and column intersection. Switching and read-out may be. by coincident pulses. Alternatively, there may be provided a z or inhibit bus 83 connected to a reverse-bias source 87. To write a "0", forwardbias pulses are applied to the selected x and y lines and a reverse-bias pulse to the z bus, the selected diode remaining in its low state. To write a "1", forward-bias pulses are applied to the selected x and y lines, but no inhibit pulse is applied to the z line so that the selected diode changes from its low to its high state.
Patent GB-689715-A (GB)
Title: Improvements in and relating to adhesives and their use in book binding
IPC: C09J131/04
Filed: 1950-11-30
Abstract: A hot melt adhesive composition comprises a copolymer of vinyl acetate and crotonic acid dispersible in dilute aqueous alkali and as plasticizer, a methylated diaryl sulphone with at least one methyl substituent in each aryl group, e.g. dixylyl, ditolyl or tolyl xylyl sulphone, a mixture of isomeric methylated diaryl sulphones, or a chlorinated diphenyl.  Fillers, e.g. asbestine, cotton flock, regenerated cellulose flakes, glass fibres; additional plasticizers, e.g. di-(ethylene glycol monoethyl ether) phthalate, triethyl citrate, tricresyl phosphate and citrate, dicresyl carbitol, butyl phthalyl butyl glycollate, o-cresyl p-toluene sulphonate and polyethylene glycol di-2-ethyl hexoate, or a modified rosin may be included.  The copolymers may be prepared with the aid of catalysts, e.g. lauryl and benzoyl peroxides, a ,a 1-azo-bis-(isobutyronitrile), and a ,a 1-azo-bis-(a -g -dimethyl valeronitrile), solvents, e.g. toluene, benzene, ethyl alcohol and t.-butyl alcohol and inhibitors, e.g. a trisubstituted phenol "Ionol" (Registered Trade Mark).  The product may be purified by dissolving in ammonium hydroxide and precipitating with hydrochloric acid.  The plasticizer may be added to the monomeric mixture and the catalyst added in two portions. Copolymers containing up to 10 per cent crotonic acid may be used as book-binding adhesives. Other copolymers may be used as label adhesives for glass or metal containers.  Adhesive contaminated waste paper may be repulped at about 5 per cent consistency in water and deinked at between 110 DEG  and 180 DEG  F., using, for example, sodium silicate and sodium peroxide, or caustic soda alone or mixed with soda ash.  U.S.A. Specifications 1,073,324 and 2,471,959 are referred to.
Patent GB-624102-A (GB)
Title: Improvements in or relating to grain driers
IPC: F26B17/14
Filed: 1946-10-02
Abstract: 624,102. Grain drying apparatus. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd. (International Harvester Co.). Oct. 2, 1946, No. 29378. [Class 34(ii)] A grain drier of the type in which preheated air passes upwardly through a mass of grain in the drying chamber, has a conveying device at the top extending centrally and longitudinally to distribute the grain along the length of the chamber. In the preferred embodiment, grain is discharged from a perforated pipe 37 by a conveyer screw 40 to a drying chamber 42, the upper grain surfaces being represented by lines 59. A dome-shaped furnace 115 within a chamber 123 circulates its exhaust gases through superposed chambers 125- 127 and then through further conduits 130 surrounding a fan 18. Finally, these gases pass into a tubular member 132 within a casing 133 and are exhausted by a fan, not shown. Cool air, drawn into the fan 18 at 116, Fig. 4, is thereby pre-heated, and then pass from chambers 66-68 through outlets 60-65 and circulate upwardly through the 65 and circulate upwardly through the grain, being discharged through the open top. The grain is discharged to a conveyer 80 having nail-like projections 86, by grooved rollers 69 rotated intermittently, the grain travelling in the direction of arrows 90 and 91 along corrugated channels 89, to a discharge screw 92, Fig. 3. A proportion of the incoming cold air enters at 118, and thereby cools the hot dry grain on the corrugated plating.
Patent GB-1473618-A (GB)
Title: Sampling cell
IPC: G01N21/03
Filed: 1975-07-14
Abstract: 1473618 Sample cell WILKS SCIENTIFIC CORP 14 July 1975 [2 April 1975] 29485/75 Heading G2 J In a cell having two windows 10, 16 and a metallic spacer 18 and secured together by amalgamation; the improvement of metallizing 24 the contacting surfaces of the windows to promote adhesion. One window, 10, is formed with inlet and outlet ports 12, 14. The windows are of crystal salts.
Patent GB-832109-A (GB)
Title: An improved visible card index
IPC: B42F17/18
Filed: 1957-09-19
Abstract: 832,109. Visible indexes. DUDLEYBRANGHAM. F., Sent. 19, 1957 [Nov. 9, 1956], No. 29489/57. Class 146(1) A visible card index comprises a base member 7 with lateral channels or flanges 8. a card holder 4 and card 1. the card holder 4 constituted by a member, arranged transversely of the base 7 of resilient material with roller or cylindrical extremities 5, the member 4 being bent for engagement of the extremities 5 with the channels 8, the member 4 being further provided with a pair of loops 6 for engagement by tongues 3 provided on the cards 1, when the cards are flexed. Preferably the cards are slit at 2 to provide the tongues 3. The card holders 4 may be of spring steel or moulded plastic, and the rollers 5 and loops 6 may be secured to the strip member 4 or formed integrally therewith. The base members 7 may be incorporated as trays in cabinets or a pair may be joined by a hinge to form a book.