baber/WOPTO huggingface dataset:
Patent GB-487674-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J19/40
Filed: 1936-09-18
Abstract: 487,674. Thermionic valves. BULL, C. S. Sept. 18, 1936, No. 25416. [Class 39 (i)] In a screen grid valve an additional screen grid 5 is placed between the positively-biassed screen grid 4 and the control grid 3 ; the turns of the two screen grids are aligned in radial planes from the cathode to anode and the additional grid 5 is at cathode or negative potential to prevent screen grid current. In valves with two or more positively-biassed screen grids such as mixer valves each such screen or suppressor grid has an associated grid 5 as described ; to suppress secondary emission the distance between the anode and adjacent screening grid may be made large or earthed plates as described in Specification 423,932 may be used. The turns of the associated grids may be aligned by the methods described in Specification 435,559 ; or they may be formed on the two sides of a perforated insulator. The use of the valve with screens as described in a high frequency amplifier stage and in the output stage of a radio receiver is set out in Specification 487,768.
Patent GB-726158-A (GB)
Title: Drying means for printing machines
IPC: B41F31/00
Filed: 1953-09-15
Abstract: 726,158. Printing-machines. ST. MARIE, G. J. Sept. 15, 1953, No. 25459/53. Class 100(2). Inking and damping - apparatus.-Drying means to remove moisture fed back into an inking system of a lithographic, offset &c. printing press from the dampened non-image areas of the printing surface, comprises a shield 16 mounted adjacent an inking roller 11<SP>1</SP> and supporting two parallel hollow members 13, 14 whose faces 19, 20 nearest the roller are perforated at 22, 26 along their entire length for passage of air from the member 13, supplied with compressed air, and into the member 14, connected to a vacuum source; valve means 23, 24 are provided to close selectively the perforations 22. In Fig. 1 a downward air stream will flow tangentially against the upwardly-moving surface of the metal roller 11<SP>1</SP>; the shield 16 is of hollow box form. Similar drying means may be associated with the forme inking rollers 4 and with the metal rollers 11 of the lithographic press shown, in which the messenger roller 7 of the damping apparatus contacts two formedamping rollers 3 simultaneously.
Patent GB-673342-A (GB)
Title: Improvements in or relating to electron discharge tubes for storing electrical signals
IPC: H01J31/60
Filed: 1950-10-19
Abstract: 673,342. Cathode-ray tubes. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Oct. 19, 1950 [Oct. 20, 1949], No. 25481/50. Class 39 (i). [Also in Group XL (c)] An electron discharge device comprising a storage electrode arranged to carry a charge image representative of information to be stored and adapted to be scanned with a lowvelocity electron beam modulated at a high frequency, has a progressively increasing positive potential of stepped or linear form superimposed on the stored signals, the side of the target on which storage occurs being adapted to be irradiated periodically with high velocity flooding electrons. In Fig. 1 the storage electrode comprises an insulating layer C and a conducting layer S which is connected to an output transformer HF and input resistances R and R1. Whilst the target is being scanned with a high frequency modulated beam Fe of slow electrons input pulses Is are applied across resistance R and cause areas of the target to be charged negatively. At a subsequent scansion the potential of the target is raised by a small amount by the stepped voltage caused by the current Ij in the resistance R1; the target as a whole is therefore charged negatively by the beam Fe except at points previously charged by the input pulses which cause a drop in the output current which is detected by the output transformer HF. The process can be repeated until the potential of the target falls to that of the initially charged areas, and the target is then discharged by the high velocity flooding beam Fr. Specification 611,222 is referred to.
Patent GB-372659-A (GB)
Title: An improved process and apparatus for the purification of carbonic acid gas produced by fermentation and other processes
IPC: C01B32/50
Filed: 1931-09-11
Abstract: The purification of carbon dioxide, especially that produced by a fermentation process, is effected with active carbon after the elimination of the sulphur content of the gas by other means. The sulphur may be removed by combining it with a metal to form a sulphide, suitable agents being pumice, wadding or the like charged with metal oxides or hydroxides, or an agent prepared by stirring gypsum with an aqueous suspension of ferric or other metallic hydroxide and allowing the mass to set.  Preferably, however, the hydrogen sulphide and other sulphur compounds in the gas are converted into elementary sulphur by treatment with manganese dioxide.  The carbon dioxide may be dried, say by cooling, prior to the treatment with active carbon, or preferably, prior to the elimination of the sulphur.  The process may be carried out at slightly increased pressure.  The active carbon may be regenerated by treatment with hot, dry gases, for example superheated steam at 300 DEG  C.  The manganese dioxide may also be regenerated by a blast of steam.  The carbon dioxide may be passed in succession through a cooler, a receptacle containing manganese dioxide and one or more vessels containing active carbon, each adapted to be cut off from the stream of carbon dioxide and connected with a current of hot gases. Specification 12165/14, [Class 1 (ii), Inorganic compounds, other than &c.], is referred to.
Patent GB-704958-A (GB)
Title: Means for actuating an air-controlling damper on a solid fuel combustion apparatus
Inventor: HAWKES STANLEY ARTHUR
IPC: F23N3/04
Filed: 1950-10-20
Abstract: 704,958. Thermally-actuated valves. RADIATION, Ltd. Sept. 28, 1951 [Oct. 20, 1950; Dec. 12, 1950], Nos. 25585/50 and 30315/50..Class 135. [Also in Group XI] An air supply damper g, loaded by a spring 3, is pivoted to a lug 2 attached to a lever f. A : knife edge fulcrum e for the lever f is carried by a bracket supporting a housing b, Fig. 2, which forms an annular chamber with a metal bellows a. This annular chamber is filled with expansible liquid and connected through a pipe c to a suitable temperature sensitive' device. A cup m, spaced from the housing b by a compression spring n, lies within the bellows a and supports a stem k which passes through a gap in the lever j and carries a screw-threaded collar p bearing on a knife-edge q on the lever f. A hollow head r formed on an adjusting spindle s is splined onto the collar p and is held in contact with a socket v by a compression spring u. An increase in the temperature of sensitive device compresses the bellows a, reduces the pressure exerted on the lever f by the spring n through the stem k and collar p and allows a spring i to move the lever f so as to reduce the air inflow. When the movement of lever f has brought the damper g to the position shown in Fig. 1, further movement of the lever f rotates the damper g about a fulcrum 4 on the air duct. The compression of the spring n, and hence the pressure on the knife edge q, is adjusted by rotating the spindle s.
Patent GB-186344-A (GB)
Title: Improvements in the construction of concrete vaulting for hangars, or sheds for airships and analogous engineering structures
IPC: E04B1/32
Filed: 1922-09-21
Abstract: 186,344. Soc. Limousin et Cie. Sept. 22, 1921, [Convention date]. Arches; roofs.- Vaulted concrete roofing for large structures such as hangars or sheds is cast in situ in the form of a series of arched ribs of trough section, Fig. 8. the bases being thickened and the ribs cross-braced to ensure strength and rigidity. The ribs are cast successively by a single mould a, c, carried by a centering b, Figs. 4 and 5. which is mounted on supports b<1>, b<2> movable laterally to free the mould, and longitudinally for casting an adjacent rib. The crown of the centering may be lowered by jacks. The outer and inner moulds are spaced apart by concrete or other tubes h through which are passed bolts h<1>. The outer mould c may consist of hinged or removable panels, or alternatively, it may be secured to an external travelling centering similar to the centering b.
Patent GB-1193778-A (GB)
Title: Improvements in or relating to the Treatment of Aqueous Effluents
Inventor: STORSAND BJARNE
IPC: B01D3/10
Filed: 1968-05-29
Abstract: 1,193,778. Separation of water from aqueous effluents which contain combustible organic constituents. MASCHINEFABRIK OERLIKON. 29 May, 1968 [12 June, 1967], No. 25607/68. Heading B1B. Water is separated from an oil-in-water emulsion by pumping it from container 6 through heating appliance 3 and then through pipe 13 to vaporizing chamber 16 which is maintained under reduced pressure by water-jet pump 28. The hot emulsion enters chamber 16 through apertured member 14 and forms a number of streams 15 from which a large proportion of the water vaporizes from the emulsion. The residual oil collects in receptacle 17 and, when it reaches a predetermined level, flows through pipe 18 into container 6. Some of the residual oil rises into annular gap 19 and flows to burner 10, the combustion gases being used to heat the emulsion in appliance 3. The steam formed in chamber 16 passes through filter column 22, and condenses on the cooled walls 23. The condensate collects in chamber 25 and flows to chamber 27 which is provided with cooling coil 31. Part of the water-condensate is circulated by pump 30 to operate jet-pump 28, and the remainder is withdrawn through cock 32. Also described is an apparatus comprising four stages, each of the type described above, connected in series, only the first stage being .provided with an oil burner. The emulsion is preheated by using it as coolant for the condensers. Also described is a film-type evaporator comprising a conical evaporating surface which surrounds an axial condenser coil. The treatment of effluents from abattoirs, sugar refineries and cellulose pulp plants, is referred to.
Patent GB-777197-A (GB)
Title: Improvements in separating polymer admixtures from recycled ethylene during the polymerisation of ethylene under high pressure
IPC: C07C7/09
Filed: 1955-09-07
Abstract: <PICT:0777197/IV(a)/1> In a process for the polymerization of ethylene alone or with e.g. propylene, styrene and acrylic esters, under high pressure, e.g. between 800 and 4000 atmospheres and at 40 DEG  to 400 DEG  C., using an oxygen catalyst, the gas mixture separated from the main part of the polymer is fractionally cooled at temperatures adjusted in the different stages to temperatures above the flow point of the condensed polymer.  In a continuous process, after compression in 1 and 2, reaction in 4 and separation in 6, the gas is led through a multi-stage, preferably three-stage, cooling zone at a pressure between 50 and 500 atmospheres comprising a plurality of pipes fitted with cooling jackets 8 and collectors 9 and the purified ethylene is recycled to compressor 2.  In an example using a three-stage collector, the polyethylenes collected have molecular weights above 6000, between 1000 and 6000 with melting points between 85 DEG  C. and 95 DEG  C., and are liquid respectively.
Patent GB-1426922-A (GB)
Title: Containers for molten metals
IPC: F27D1/00
Filed: 1973-05-30
Abstract: 1426922 Metallurgical condenser I S C SMELTING Ltd 12 March 1974 [30 May 1973] 25630/73 Heading C7D  A condenser for condensing Zn vapour, e.g. from a Zn blast furnace, with molten Zn or Pb is supported on an open steelwork grid and is constructed of refractory brickwork 1 embedded in concrete 2 surrounded by a steel casing 3, such that the brickwork in contact with molten metal is constrained by the casing 3 to be under compression at the working temperature.
Patent GB-188475-A (GB)
Title: Improvements in or relating to culinary or like domestic articles
IPC: A47J43/28
Filed: 1921-09-29
Abstract: 188,475. Clements, S. Sept. 20, 1921. Spoons and ladles.-Culinary implements such as a soup ladle 1, Fig. 1, soup skimmer 2, fish slice 3, and a cooking fork 4, are adapted to be attached to a common handle 15, Fig. 5, and a wall bracket having pegs 23 for engaging the stems 5, and flanges 25 for supporting the handle 15, is provided to accommodate the articles. The articles may be made of pressed aluminium plate and the stems 5 are of aluminium tubing. The ends of the stem tubings are slit and bent over to form superposed lugs which, in case of a soup bowl, are secured to the bowl by rivets 9 and a rivet 10 which passes through the closed end of the tube. A small angle piece is interposed be tween the soup skimmer and the stem 5, and is riveted to both. The handle 15 is provided with a bayonet slot 17 and a raised portion 18 which slides over the engaging pressed-up pegs 16 on the stem 5. A spring 19 interposed between fixed and movable washers 20, 21 holds the stem firmly in the bayonet joint.
Patent GB-721335-A (GB)
Title: Improvements in hydraulic presses
IPC: B30B15/16
Filed: 1952-10-15
Abstract: 721,335. Hydraulic presses. LANGEN. STEIN UND SCHEMANN AKT.-GES. Oct- 15, 1952 [Oct. 27, 1951; Out. 27, 1951; Oct. 27, 1951], No. 25818/52. Class 69 (2). [Also in Group XXII] In a hydraulic press having a large preliminary filling valve 6 the opening movement of which is controllable by a piston 7 movable in a control cylinder 9 against the pressure of a closing spring 11, the control cylinder is in constant communication via pipes 12, 14 with an annular space 4 operating as a return cylinder for the ram 2. The piston 7 has a crosshead 10 having holes or slats therein in order that it may act as a damping device during reciprocating movement of the valve 6. When the pump 13 is adjusted via linkage 20 and control rod 18 to deliver pressure fluid into pipe 15, the ram 2 is forced downwards and the valve 6 will close automatically with build-up of pressure in the working chamber 3. The valve 6 is surrounded by a hood 6b immersed in the tank 38 in order to prevent the suction of air. When the pump 13 is adjusted to deliver into pipe 14 and space 4 to retract the ram, pressure fluid also flows into pipe 12 and cylinder 9 to act on the piston 7 to open the valve 6. When the pump is adjusted via control rod 18 to its neutral position, the ram will be held stationary. The rod 18 is actuated by a hand lever 16 which may be locked in position by a fitting 32, or may be actuated by a tappet thereon engaging an arm which moves with the ram. By actuating a valve 28 the space 4 may be exhausted through a pipe 39 and the press operated as a drop hammer [see Group XXII).
Patent GB-246228-A (GB)
Title: Improvements relating to electrodes for electrolytic decomposition apparatus
IPC: C25B11/02
Filed: 1924-10-29
Abstract: 246,228. Holmboe, C. F. Oct. 29, 1924. Electrodes; diaphragms. - An electrode comprises a plate 1 having vertical ribs 3 on both sides which provide the greater proportion of the active surface. The ribs mav extend over the whole height of the electrode or there may be superimposed separate ribs 4 as shown for the electrode 2. The electrodes are suspended from the cell cover 7 within a bell 8, together with a diaphragm 9 spaced from the ribs. The ribs of adjacent electrodes may be in alignment or staggered. The plates may have end ribs set at an acute angle thereto, forming an abutment for a diaphragm bag when such is employed.
Patent GB-914876-A (GB)
Title: Photographic layers for the silver dyestuff bleaching method
IPC: C09B39/00
Filed: 1961-07-17
Abstract: The Specification refers to azo dyes having the general formula <FORM:0914876/IV (b)/1> wherein X1 is hydrogen or a sulphonic acid group, X2 is a sulphonic acid or sulphonamide group, R is a cyclic residue containing a benzene ring to which the azo group is bound, and A is an acylamino group (including sulphonylamino and cyanuramido) bound to R by its nitrogen atom.  The residue R may be a benzene ring which may be further substituted with alkyl, alkoxy, carboxy or sulpho groups or with chlorine atoms.  The group A may be a simple group such as acetylamino, benzoylamino, lauroylamino, sulpho-benzoylamino, p-toluene sulphonamido or m-lauroylamino-benzene sulphonamido, or a complex group such as p-[4;6- di(p-sulphophenylamino)- 1;3;5-triazinyl-2-amino] benzoylamino.  In many of the examples, however, A is so chosen as to give a symmetrical disazo dye wherein the azo groups of the naphthols are joined together by the group -C6H4-NH-CO-NH-C6H4 in which the benzene rings may have sulpho substituents, or by the group -C6H3(SO3H) -NHCO -B-CO -NHC6H3(SO3H)-, where B is -C6H4-, -CH=CH-, -C6H4NHCONHC6H4-, -C6H4NHCOCH= CHCONHC6H4- or -C6H4NHCOC6H4CON-HC6H4-. The group X2 may be -SO2NR1R2 wherein R1 is an alkyl group which may be substituted by hydroxyl, or a cycloalkyl, aryl or aralkyl group, and R2 is hydrogen or an alkyl group which may be substituted, or R1 and R2 together may complete a heterocyclic ring such as morpholine.  In the examples, X2 is sulpho, -SO2NH2 or -SO2NR1R2 where R1 is n-hexyl or b -hydroxyethyl and R2 is H or CH3.
Patent GB-1343551-A (GB)
Title: Composition for pre-washing treatment of textiles
IPC: C11D1/831
Filed: 1972-06-02
Abstract: 1343551 Jelly like detergent composition KAO SOAP CO Ltd 2 June 1972 [9 June 1971] 25905/72 Heading C5D  A jelly-like detergent composition consists essentially of (A) 8 to 30% by wt. of a straight chain or branched chain alkylbenzene sulphonate detergent, (B) 10 to 62% wt. of a polyoxyethylene non-ionic surfactant and (C) water: the sum of ingredients (A) and (B) being 25 to 70% wt. of the composition. Compounds (B) are ethylene oxide condensates of C 8-22  aliphatic alcohols and C 8 -C 18  alkyl phenols with 1 to 8 oxyethylene units, which have a HLB value of 5 to 11. Part of ingredient (B) may be replaced by (C) a glycolether solvent in quantities of not more than 6% wt. of the total composition, and / or (D) a dialkylsulphosuccinate in not more than 5% wt. of the total composition. The composition is applied to heavily stained clothing to remove oily dirt prior to washing.
Patent GB-1422744-A (GB)
Title: Label applying method and apparatus
IPC: B65C5/00
Filed: 1973-05-31
Abstract: 1422744 Wrapping labels around articles; labelling machines; conveyors J E KIENEL 31 May 1973 [1 June 1972] 26069/73 Headings B8C B8A and B8F Labels 12 are fed sequentially along a path to a station 44 where a pair of socks are laid across the middle of the label and the ends of the label are lifted and folded across the top of the pair of socks by arms 76, 78. The labels are separated from a carrier strip 16 as the strip passes around a corner member 30, the separation being aided by a wand 40, and are fed over a suction box 42 by perforated belts 46, 47 passing along slots in the top of the box. The belts are driven by an electric motor through a drive including a brake and a clutch which overrides the brake when both are engaged. The label feed is terminated when a switch arm 63 falls below the trailing edge of a label. An arm (74), which raises the trailing edge of a label for engagement by the arm 76, and arms 76, 78 are operated pneumatically when an operator depresses a switch 145 when he lays the socks across the label.
Patent GB-1246361-A (GB)
Title: Improvements in or relating to computing machines
IPC: G06C3/00
Filed: 1969-05-22
Abstract: 1,246,361. Calculating apparatus. STIG COMPUGRAPH Inc. 22 May, 1969 [27 May, 1968], No. 26106/69. Heading G4B. Multiplying apparatus includes an infinitely variable gear unit, a reading device for sensing a punched card inserted in the apparatus and controlling the setting of the gear unit in accordance with an aperture in the card representing a multiplier, and manually operable means for driving the gear unit in accordance with the multiplicand. The variable gear unit comprises a plastics gear 46 having a friction surface 54 and a wheel 20 slidable along a splined shaft 22. The gear 46 is supported in an apertured plate between a pair of spaced plates, Fig. 3 (not shown). The wheel 20 is moved along the shaft 22 under the control of a carriage 28 having a feeler 32 engageable with an apertured card 36 to set the multiplier. A cam 44 moves the wheel 20 away from gear 46 during setting. A thumb wheel 76 is provided for rotating gear 46 and through co-operating gears 78, 80, 84 moves a pointer 94 over a scale on the card 36 to set the multiplicand. The gear unit drives a flexible band 6 along a scale 8 indicating the result. The gear 80 is carried by a spring-loaded pivoted lever 82 co-operating with the card 36 so that on removing the card from the apparatus, the gear 80 is disengaged from gear 84 which rotates under the action of spring 96 to return the pointer automatically to its initial position.
Patent GB-226171-A (GB)
Title: Improvements in electric thermic time limit relays
IPC: H01H43/30
Filed: 1924-11-03
Abstract: 226,171. Allmõnna Svenska Elektriska Aktiebolaget. Dec. 10, 1923, [Convention date]. Electrically tripped switches ; electromagnetic switches.-A body 3 of a suitable magnetic material constitutes part of an electromagnetic circuit energized by a winding 4 and normally attracts an armature 2, but when the current atelectromagnet 1 until the body 3 becomes heated. and loses its magnetic properties thus increasing the reluctance of the circuit and causing contacts- 6, 7 to be closed. According to the arrangement shown, for use with alternating current, the body 3 is in the form of a zig-zag strip in series with a coil 5 which forms the secondary of a transformer the primary of which is the coil 4, and sois heated by the current in the secondary. The armature 2 is attracted to an almost equal extent in opposite directions by the two poles of the electro-magnet 1 until the body 3 becomes heated when the attraction of the right hand pole predominates and the contacts 6, 7 are closed. Suitable materials for the body 3 are iron, nickel, alloys of nickel and copper, or alloy of aluminium and manganese, &c.
Patent GB-757774-A (GB)
Title: Improvements in or relating to two-co-ordinate electro-magnetic step-by-step switches
IPC: H01H67/16
Filed: 1954-09-09
Abstract: 757,774. Automatic exchange switches. GENERAL ELECTRIC CO., Ltd., and ROSE, W. R. Aug. 15, 1955 [Sept. 9, 1954], No. 26187/54. Class 40 (4). In a vertical and rotary switch a normal post spring set 4 is operated by means of a discshaped member 7 mounted coaxially with the switch shaft which deflects a cam assembly during the vertical stepping motion of the switch. The cam assembly comprises a pile of selectively adjustable and eccentrically-shaped cams 10 threaded on a spindle 9 which is mounted in a frame 8. The frame 8 is pivoted to the switch frame on an axis 13 and actuates the spring set 4 by pushing on a rigid link 20. Each cam 10 has a bevelled projection 15 and a flat surface 16 and can be positively located in either of two positions by the engagement of manually releasable spring teeth 17 with grooves 14 in the cam. In one of the two positions the portion 15 of a cam projects to engage the disc 7 while in the other position the portion 15 is turned away from the disc and is consequently inactive. The rest position of the cam assembly is determined by the stiffness of the contactcarrying blades of the spring set. Specification 638,384 is referred to.