baber/WOPTO huggingface dataset:
Patent GB-949004-A (GB)
Title: Improvements relating to fluid pressure reduction valves
IPC: G05D16/06
Filed: 1962-05-16
Abstract: 949,004. Valves. BRENT INDUSTRIES PROPRIETARY Ltd. May 16, 1962 [May 26, 1961], No. 18917/62. Heading F2V. A fluid pressure-reducing valve comprises a hollow piston member 9, Fig. 2, mounted in a casing 5 for axial movement. The piston member is slidable on an inlet 14 and is sealed with respect to the casing by a piston-like seal 35 or a diaphragm to form a pressure chamber 37 communicating with an outlet 40. The hollow piston has an outlet 15d to the pressure chamber and carries a valve closure 27 which cooperates with a valve member 50, which may be a loose ball loaded by a spring 51 to abut a rod 47 or may be secured to the rod. The piston 9 is loaded by a spring 11 in a valveopening direction and the fluid in the pressure chamber 37 acts on the seal 35 or diaphragm in a closing direction. Rods 65 may be provided to limit the movement of the piston. In a modification, the ball 50 is replaced by a disc valve carried by the rod or by an extension of the inlet tube 14. Fig. 8 shows a modified form of closure member 27<SP>11</SP> which consists of the resilient member 27<SP>11</SP> clamped between plates 78 providing a yielding closure.
Patent GB-209687-A (GB)
Title: Improvements in or relating to a process for case-hardening wrought iron or steel
IPC: C23C8/66
Filed: 1923-07-25
Abstract: 209,687. Bailey, J. A. July 25, 1923. Case-hardening.-In a process for case-hardening wrought iron or mild steel articles, the article is embedded in a mixture of a bichromate of an alkali or an alkaline earth and a carbonaceous material, the latter being in excess, and is heated to produce a hyper-eutectoid case. In an example, a mixture of 12 per cent of sodium bichromate and 88 per cent of charcoal is used, the bichromate being dissolved in water and sprinkled, with or without the addition of a hydrocarbon, such as oil, over the charcoal. The article embedded in the mixture is heated to a temperature of about 920‹ C.
Patent GB-135898-A (GB)
Title: Improvements in or relating to Gas Burners.
IPC: F23D14/10
Filed: 1918-11-21
Abstract: 135,898. Jacob & Co., W. & R., and Purdy, W. J. Nov. 21, 1918. Drawings to Specification. Perforated-tube and like multiple-jet burners.- Tubular gaseous-fuel burners for use in biscuitmaking ovens, and, according to the Provisional Specification, to other heating-chambers of considerable longitudinal dimensions, are provided with perforations or saw-cuts varying in size and so proportioned in respect to the pressure in the burner tube that a uniform flame length and intensity is obtained. The perforations may be elongated. The saw-cuts may be cut longitudinally in the tube or at an angle to the axis, and may be in discontinuous lengths. The position, number, and dimensions of the perforations of a particular burner tube are stated in the Specification as an example. Reference has been directed by the Comptroller to Specifications 14476/98 and 23558/03, [both in Class 126, Stoves &c.], and 4490/10.
Patent GB-1503157-A (GB)
Title: Aerosol detector
IPC: G08B17/11
Filed: 1975-05-07
Abstract: 1503157 Ionization gas detectors RCA CORPORATION 7 May 1975 [5 June 1974 (2) 19165/75 Heading G1N [Also in Division H1] Aerosols in a gas are detected by monitoring the current produced by a corona discharge device and which is exposed to the gas. A rod like probe electrode 12 having a hemispherical blunt end is connected to a high voltage source 10 and mounted in an open housing opposite a disc shaped receiving electrode 16, the respective radii of curvature of electrodes 12, 16, the spacing therebetween and the voltage applied to the electrode 12 being such that a corona discharge is formed about the end of electrode 12 with electrode 16 out of the discharge in a space charge limited current region. The ion current flowing between the electrodes 12, 16 is monitored by an integrating operational amplifier 20, the imput of which includes smoothing circuit 22, 24. If molecules of aerosol enter the housing they adhere to the ions and decrease their mobility so that: there is a corresponding change in the output of amplifier 20 which operates an alarm. In order to compensate for variations in the output of voltage source 10, the output of the latter is sampled by potentiometer 32 and a current proportional to the output is applied to the inverting input of the amplifier. An offset voltage is applied to terminal 21 of the amplifier 20. In order to improve the sensitivity of the device to small and infrequent amounts of aerosol which produce output signals indistinguishable from noise transients a wire mesh screen 52 is interposed between electrode 50 connected to voltage source 10 and a receiving electrode 54 coupled to ground Fig. 3. The screen 52 is connected to terminal 19 and the arrangement is such that aerosols are entrapped in the region between 52, 54 and interact for a relatively long duration with the charged ions. A line corona discharge may be produced by a wire Fig. 5 (not shown). The detector may be mounted in the upper part of a television receiver to monitor for smoke, Fig. 4 (not shown).
Patent GB-262021-A (GB)
Title: Pneumatic pistol
IPC: F41B11/72
Filed: 1926-08-03
Abstract: 262,021. Ottmann, E. Aug. 3, 1926. Pneumatic.-Relates to air pistols or guns of the kind having an air chamber adapted to be charged with compressed air by means of a pump on the gun. According to the invention, the valve controlling the passage from the chamber 5 to the barrel 1 comprises a sector 18 adapted to be turned aside to open the passage when the trigger 25 is pulled. The sector 18 is mounted on the end of a spindle 17 formed with a steep pitch screw thread and engaged by a non-rotary nut 20 adapted to be pressed forwards by a spring 23 and retained in the closed position by the trigger. As shown, the chamber 5 is behind the barrel and the pump 12 is arranged beneath the barrel.
Patent GB-1123083-A (GB)
Title: Improvements in or relating to arrangements for the heat treatment of materials by microwaves
IPC: H05B6/78
Filed: 1966-05-02
Abstract: 1,123,083. Microwave heating. MENSCHNER G.m.b.H., [trading as JOHANNES MENSCHNER TEXTILMASCHINENFABRIK]. 2 May, 1966 [4 May, 1965], No. 19264/66. Heading H5H. A web 1 of material is heated by microwave propagated in a split waveguide or waveguides 2a and additional radiant heat is supplied by ducts 2b which are not apertured (except at their ends) and serve as conduits for heating fluid or as supports for heat generators. Gases evolved during the heating process are drawn off through additional ducts 3, where the heating medium is in the form of a fluid, inlet and outlet apertures are provided at the ends of ducts 2b and the fluid is recirculated without loss of quantity. The apparatus may be used for heating adhesives supported by the web 1, such adhesives being of the kind which produce very little condensate.
Patent GB-256048-A (GB)
Title: Improvements in shades for electric and other lights
IPC: F21V1/00
Filed: 1925-07-29
Abstract: 256,048. Burrell, E. C. R. July 29, 1925. Omamenting.-A cotton or other fabric a for covering a lampshade is coated first with a translucent varnish b or other adhesive which is flexible when dry, and then with powdered or fine particles c of glass or other crystalline substance. The fabric is not opaque, and it may be treated with oil or other substance to increase its translucency. The fabric may be white or coloured and may have a design painted, printed, or otherwise provided thereon, or it may be a figured material. The powdered glass may be of a single or several colours and it may be sprinkled on the varnished fabric, or the varnished fabric may be laid on a. surface covered with the powdered glass.
Patent GB-713512-A (GB)
Title: Vat dyestuffs of the anthraquinone series
IPC: C09B5/34
Filed: 1952-07-30
Abstract: The invention comprises products obtainable by acylating 4-amino-2, 1-anthraquinone-4\sv-chlorobenzacridone with a benzoic acid (or a functional derivative thereof) substituted by halogen in orthoor meta-position.  The products dye cotton reddish-blue shades. Examples describe the acylation with (1) 3-bromo or chloro- or fluoro-benzoyl chloride, and (2) 2,4-dichlorbenzoyl chloride, 2-chloro-or 2.5-dichloro-benzoyl chloride. Specifications 592,268, and 633,132, are referred to.
Patent GB-792121-A (GB)
Title: Improvements in or relating to grinding or rumbling barrels
Inventor: SEDDON ROBERT MAXWELL
IPC: B24B31/02
Filed: 1954-07-21
Abstract: 792,121. Rumbling barrels. DUNLOP RUBBER CO., Ltd. July 5, 1955 [July 21, 1954], No. 19362/55. Class 60. A rumbling barrel comprises an open-ended body made of a flexible rubber compound, and at least one rigid reinforcing hoop attached coaxially to the body. A barrel comprises a cylindrical body 2 having an open end 3 ; the barrel is moulded from a flexible vulcanizable hard rubber compound of approximately 90 degrees Shore hardness. Three longitudinally extending ribs 4 moulded integrally on the internal surface of the barrel give a tumbling action to articles contained within the barrel upon its rotation. A pair of rubber tyres 5 are located one adjacent to each end of the body 2 ; the tyres are coaxial with the body and moulded integrally therewith. Each tyre has a recess for the reception of a rigid steel hoop 7. The open end 3 of the body 2 is provided with a rigid steel ring 9 which reinforces the end and prevents radially outward expansion thereof when the body is fitted with an internally fitting lid assembly ; various constructions of expandible lids are described in the Provisional Specification. In a modification, Fig. 2, a rubber body 10 of a rumbling barrel is provided with a pair of tyres each comprising two parts 12a, 12b, and a steel hoop 13. The body may be of hollow polygonal, e.g. octagonal, cross-section. The rubber may be natural or synthetic, e.g., a polychlorobutadiene, a butadiene styrene copolymer or polyvinyl chloride. The composition .may also contain powdered or fibrous fillers or resins particularly phenol-formaldehyde resins.
Patent GB-374304-A (GB)
Title: Kitchen chair adapted to be converted into an ironing table
IPC: A47C13/00
Filed: 1931-07-06
Abstract: 374,304. Seats and ironing-tables. CARL, L. K., Vintre M÷lle, near Kirke Saaby, Denmark. July 6, 1931, No. 19468. Convention date, April 8. [Classes 52 (ii) and 52 (iii).] A kitchen chair convertible into an ironing-table comprises a back d pivoted at e and adapted to be swung through about 270‹ and supported by turning up the seat g hinged at h; the rear edge of the seat then abuts against the batten f as shown.
Patent GB-766699-A (GB)
Title: Improvements in electric isolating switches
Inventor: HUMPHREYS CHARLES FOGDEN
IPC: H01H33/16
Filed: 1954-07-02
Abstract: 766,699. Air-break switches. BRITISH THOMSON-HOUSTON CO., Ltd. July 4, 1955 [July 2, 1954], No. 19492/54. Class 38(5) An air-break isolating switch has a resistance 11 connected in parallel with one of two pairs of series-connected contacts so that on opening the switch any transformer magnetizing or line charging current flowing is reduced by the resistance on the opening of the first pair and finally interrupted by the second pair of contacts. In the arrangement shown, a contact blade 10 mounted on a rotary insulating post 2 co-operates with fixed contacts 5, 6 mounted on fixed insulating posts 1, 3, the contact 6 having an elongated arcuate form so that the blade 10 disengages from the contact 6 after disengaging from the contact 5. The linear or non-linear resistance 11 is carried by a metal bracket 13 fixed to the contact 5 and a metal bracket 14 pivoted at 15 on the rotational axis of the blade 10. The blade 10 may be provided with spring mounted auxiliary " flicker " contacts.
Patent GB-166892-A (GB)
Title: Improvements in combing or carding machines
IPC: D01G19/22
Filed: 1921-07-21
Abstract: 166,892. Verstraete, C. July 21, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Combing-machines. - The needle-cleaning brush of a combing-machine is arranged so that it contacts with the comb cylinder only when the needles are passing. The brush 6 is mounted in a spring-controlled lever 8 which is depressed by a cam 5 on the comb shaft corresponding in length and position to the fluted segment. The cam bowl is adjustably mounted on the lever to enable the position of the brush relative to the cylinder to be adjusted.
Patent GB-298301-A (GB)
Title: Improvements in the separation of cobalt from other materials
Filed: 1927-07-25
Abstract: 298,301. Smith, S. C. July 25, 1927. Cobalt and nickel sulphates. - Metallic salt solutions containing a cobalt salt, particularly the sulphate, may be treated with lead peroxide in the presence of a soluble nickel compound. The cobalt is thrown down, together with the lead, as a precipitate, which is then leached with sulphuric acid, in order to bring the cobalt into solution, and the insoluble residue is suitable for re-conversion into lead peroxide. The precipitation is preferably carried out at the boiling-point of the solution. The process may be applied to separate cobalt and nickel from a solution containing both metals, the cobalt being precipitated substantially completely. Alternatively, the precipitation may be carried out in two stages, a small quantity of cobalt remaining in solution after the first precipitation. The same method of separation may also be applied to ores, concentrates or like materials containing cobalt and nickel : a solution of the salts of the two metals first being obtained.
Patent GB-1058728-A (GB)
Title: Improvements in or relating to potentiometers
IPC: H01C10/32
Filed: 1964-05-12
Abstract: 1,058,728. Variable resistors. IRC Inc. May 12, 1964 [May 21, 1963], No. 19720/64. Heading H1S. A miniature trimmer potentiometer comprises an insulating rectangular base 12 having a surface 18 on which is seated an annular wire wound resistance element 44, the spaced ends of the winding 48 being bonded to terminal strips 50a, 50b in turn bonded to the bent-over upper ends 52a of terminal wires 52, 54 extending through holes 42a, 42b in the base. A contact terminal wire 56 extends through a hob 40 in the base 12 and is bent to provide a portion 56a extending through a groove 36 in a rib 32 of the base, the wire being further bent to provide a portion 56b extending through a groove 38 in a hub 30 of the base. The portion 56b is at the centre of the element 44 and serves as a pivot for a resilient contact member 58 seated on the end of the hub. The contact member 58 has a finger 66 engaging the element 44 and a pair of holes 62, 70 receiving the wire 56, a wiper 71 on the member making electrical contact with the wire. An actuator knob 72 has a recess 76 receiving the hub 30, a slot 78 receiving the contact member 58 for driving the latter and a hole 80 receiving the wire 56. The knob is adjusted by a screw-driver slot 86 and has an arrow 88 co-operating with index marks 104 on a cover 90. A sealing washer 100 is provided between a projection 98 on the cover and a groove 82 in a flange 74 of the knob, the cover being cemented to the base 12. A stop lug 84 on the flange 74 co-operates with a stop lug on the cover to limit the rotation of the knob. In a modification (Fig. 6, not shown) the wires 52, 54, 56 are bent to extend along the outer surface of the base 12 so that the wire ends project from a side of the potentiometer instead of from the base and a grooved insulating plate for covering the wires is cemented to the base.
Patent GB-895172-A (GB)
Title: Industrial truck
IPC: B66F9/075
Filed: 1960-05-09
Abstract: 895,172. Fork-lift trucks. CLARK EQUIPMENT CO. May 9, 1960 [June 8, 1959], No. 19809/61. Divided out of 895,168. Class 78 (3). A fork-life truck comprises a lifting-mast mechanism 14 with fixed channel members 16 and a pair of I-beams 18 for vertical telescoping movement, the mast mechanism being movable longitudinally of the truck. An hydraulic cylinder lifting motor 20 is coupled to carriage 22 through chain-and-sprocket mechanism 24, a pair of fork tines 30 being supported upon carriage 22. The mast 14 is coupled by brackets 32 to channel members 10 for longitudinal movement relative thereto, a pair of rollers 34 being used for this purpose. The brackets are associated with worm gearing and a motor within housing 36 for driving the mast. A pair of dirigible wheels 38, having power steering control mechanism, are associated with tiller 40 and traction motors 42, 43. An operator's station 44 comprises a parking brake pedal 52 and a main control handle 50. Upward and downward movement of the handle 50 controls the hoist cylinder motor 20, initial movement of the handle starting a pump motor for low speed lifting action, and further movement of the handle then actuating another pump motor for high-speed lifting action. The control handle may also be rotated about its own axis to control the speed of the traction motors. Braking is controlled automatically upon actuation of the main control handle and as a function of the position of the master controller for the traction motors. The hydraulic section of the braking system is operated from the source which also operates the steering system. Specifications 818,457, 876,286, 895,170 and 895,171 also are referred to.
Patent GB-664305-A (GB)
Title: Process for making the converter perforated bottoms
IPC: C21C5/48
Filed: 1949-07-28
Abstract: In a process for making converter perforated bottoms by moulding, compacting and baking a mass, such as a mixture of tar and dolomite, with needles to form air flues, the lower part of each air flue is widened after baking into a nozzle shape diverging downwards, preferably so that the wide end of the flue registers roughly with the corresponding hole in the base plate supporting the bottom.  A sleeve of cardboard or similar material may be positioned round each needle abutting the base plate to form a skirt which prevents tar running into the holes in the base plate during baking, or a wooden conical plug may perform the same function and also leave less material to be removed, e.g. by milling, to give the required nozzle shape.  In this case the bottom end of the needle fits into a recess in the top of the plug.
Patent GB-1127471-A (GB)
Title: Improvements in or relating to pedals with reflectors
IPC: B62M3/12
Filed: 1966-05-06
Abstract: 1,127,471. Cycle &c. pedals. CESKE ZAVODY MOTOCYKLOVE NARODNI PODNIK. 6 May, 1966 [7 May, 1965], No. 20121/66. Heading B7E. A cycle &c. pedal comprises frame members 5 held relative to end plates 2, 3 by squeezing projections 9 provided at one or both ends, and tubular foot-tread members 4 surrounding the parts 5 and plastics frames 7 mounting reflectors 8 in through holes in the members 4. The frames 7 may, however, be omitted and the parts 4 made themselves to mount the reflectors.
Patent GB-1462121-A (GB)
Title: Folding cover systems for hatches or tween decks
IPC: B41F13/03
Filed: 1974-05-07
Abstract: 1462121 Hatch cover operating mechanisms KVAERNER BRUG AS 7 May 1974 [8 May 1973] 20141/74 Heading E2M The cover for an opening e.g. a hatchway comprises sections hinged together in pairs with adjacent pairs being connected together and the sections are moved along a runway 12 to cover or uncover the opening by means of an endless chain, wire or the like 14 and jacks 16 which are connected to the pairs of cover sections 1A 1B to 4A-4B. When opening the cover initially the jacks are retracted to lift the pivot axis of the respective pairs of cover sections. When closing the cover the jacks are extended during the final phase of unfolding to act as a brake for the respective pairs of cover sections. The jacks operate only during the initial and final phases of folding or unfolding the cover sections respectively.
Patent GB-171660-A (GB)
Title: Improvements in or relating to means for displaying articles in shop windows or likeplaces
IPC: B65D5/52
Filed: 1921-07-27
Abstract: 171,660. Speed, J. D. July 27, 1921. Fittings, internal and external; partitioned boxes.-A display box is open along one side and has a division member 2, comprising a horizontal part supported by two end pieces or comprising an open-ended box, adapted to support a tray 6 upon which in turn is supported, inclined by means of its attachment 8, a second tray 7. The trays 6, 7 are sub-divided, for instance, as shown, by inserting in them small open boxes adapted to contain and exhibit cachou boxes &c. A drawer 4 for containing a supply of the cachous &c., and paper bags &c., slides under the division member, which has a flap 3 adapted either to rest on the drawer when open, or to cover the open side of the box above the division member. When not in use for display purposes the trays are arranged superposed in the upper part of the box and a lid is fitted over retaining the flap 3 in its upturned position.
Patent GB-590990-A (GB)
Title: Fuel and air supply systems of carburetting apparatus
IPC: F02M71/00
Filed: 1945-08-07
Abstract: 590,990. Carburetting-apparatus. BENDIX AVIATION CORPORATION. Aug. 7, 1945, No. 20242. Convention date, Oct. 19, 1944. Addition to 590,960. [Classes 7 (iii) and 7 (vi)] The chamber 7, 8 behind the diaphragm 74 of the fuel-supply valve 86 forming part of the fuel and air supply system described in the parent Specification is subject to barometric or air inlet pressure..As shown the chamber 78 is connected by a passage 82 containing a constriction 84 to the throat of a Venturi tube 80 and a valve 140 actuated by a barometric device 120 controls the amount of air which can be bled through conduits 130, 144 into the passage 82. As the atmospheric pressure falls the valve 140 restricts the quantity of air bled into the passage 82 and consequently the pressure in the chamber 78 falls and the pressure of fuel supplied to the nozzle 28 increases. The barometric device comprises a bellows 124, filled with liquid and communicating through a passage 128 with a reservoir 126 the upper part of which is filled with a gas. Instead of being carried by a'yoke the fuel valve 86 is mounted on a stem 94 secured to the diaphragm 74. In a modified construction, the suction passage 82 is omitted and the chamber 78 ds open to the atmosphere, the pressure of the spring 100 being adjusted by a plunger which is either actuated by a link directly from a rod carried by the barometric device or is actuated by a solenoid in circuit with a resistance the amount of which is controlled by a rod carried by the barometric means.
Patent GB-951218-A (GB)
Title: A process for the di-ortho-alkylation of phenol
IPC: B01J31/02
Filed: 1961-06-05
Abstract: A process for the di-ortho-alkylation of phenol itself comprises heating phenol at a temperature of at least 100 DEG C. with at least 2 moles of an olefin per mole of phenol in the presence of a catalyst consisting of a dialkyl sulphate, an alkane sulphonic acid, a naphthalene-sulphonic acid or 3, 6-dihydroxy-1, 4-benzene disulphonic acid, and separating the 2, 6-dialkyl phenol from the reaction mixture at a time between the time at which the ratio of the molar concentration of 2, 6-dialkyl phenol to the sum of the molar concentrations of 2, 6-dialkyl phenol, 4-alkyl phenol, 2, 4-dialkyl phenol and 2, 4, 6-trialkyl phenol reaches a maximum and the time at which the concentration of 2, 6-dialkyl phenol in the reaction mixture reaches a maximum.  The alkylation may be carried out batchwise or continuously, preferably at 100 DEG  to 250 DEG C. and at 6.5 to 200 atmospheres in an inert atmosphere.  Catalysts mentioned are dimethyl, diethyl, dipropyl, di-isopropyl and dibutyl sulphates, and methane, ethane, propane, butane and a - and b - naphthalene sulphonic acids.  The preferred catalysts are dimethyl sulphate and methane sulphonic acids. Olefin reactants specified are ethylene, propylene, butylene, butadiene, isobutylene, amylene, isoamylene, hexylene, isoprene, dodecene, eicosene, cyclopentene, cyclohexene, styrene, a -methyl styrene, divinyl benzene and allylbenzene. The process is preferably carried out under non-ionic substantially anhydrous conditions.  In the examples phenol is reacted with isobutylene and 2-methyl butene-1 using various catalysts; tables are set forth showing the reaction conditions and the products formed.