baber/WOPTO huggingface dataset:
Patent GB-523200-A (GB)
Title: Improvements in or relating to agitators for suction cleaners
IPC: A47L9/04
Filed: 1938-12-28
Abstract: 523,200. Vacuum cleaners. HOOVER, Ltd. Dec. 28, 1938, Nos. 37612 and 37613. Convention dates, Dec. 31, 1937, and Dec. 23, 1938. [Class 8 (i)] Rotary agitators of vacuum cleaners are provided with helical brushes adjustable radially. The Figure shows an agitator with a brush the body of which lies in a groove 2 and is formed with pairs of longitudinal ribs coacting with flanges 7 on a channel member in the groove. The groove member may be detached from the agitator, and the brush then longitudinally withdrawn and reinserted with the upper brush ribs either above or below the flanges 7. In a modification, the groove member is fixed, and one end of it may be exposed by turning a hinged part of the thread guard at that end releasing a spring-pressed plate normally closing the groove end ; the brush is then removed and reinserted longitudinally. In a further modification, the brush body has stepped portions at each end. one or other of which engages a lug on an adjusting member, either the brush or the member being adjusted longitudinally.
Patent GB-1188008-A (GB)
Title: Indole Derivatives
Inventor: CHEMERDA JOHN MARTIN
IPC: C07D209/28
Filed: 1967-08-16
Abstract: 1,188,008. Indole derivatives. MERCK & CO. Inc. 16 Aug., 1967 [25 Aug., 1966], No. 37646/67. Heading C2C. Indole derivatives of the general formula wherein R is a methoxy or dimethylamino group, are prepared by (a) diazotization of an amino-substituted indole derivative of the general formula wherein each Y is independently either an amino group or a hydrogen atom, at least one Y being an amino group, and R<SP>11</SP> is a hydrogen atom, and subsequent removal of the diazonium group(s) by treatment with hypophosphorous acid; or (b) de-esterification of an amino-substituted indole derivative of the second general formula above wherein R<SP>11</SP> is a C 1-5  alkyl group, followed by treatment as in (a). Novel amino-substituted indole derivatives of the second general formula above wherein R<SP>11</SP> is a hydrogen atom or a C 1-5  alkyl group are prepared by catalytic reduction of a nitrosubstituted indole derivative of the general formula wherein each X is independently either a nitro group or a hydrogen atom, at least one X being a nitro group, and R<SP>1</SP> is a hydrogen atom or a C 1-5  alkyl or aralkyl group. Nitro-substituted indole derivatives of the third general formula above are prepared by nitration of an N-unsubstituted indole derivative of the general formula wherein R<SP>111</SP> is a C 1-5  alkyl or aralkyl group, and treatment of the resulting nitrated N-unsubstituted indole derivative with sodium hydride and p-chlorobenzoyl chloride or a derivative thereof having up to two nitro groups substituted on the benzene nucleus (in the latter case, the first step may be omitted), followed optionally by de-esterification.
Patent GB-945363-A (GB)
Title: Application of identification sleeves to electric conductors
Inventor: HESTER PATRICK MURRAY
IPC: H01B13/34
Filed: 1959-11-06
Abstract: 945,363. Identifying electric cables. PERMARK SERVICE Ltd. Nov. 3, 1960 [Nov. 6, 1959;April 13, 1960],Nos. 37711/59 and 13172/60. Heading H1A. [Also in Division B8] Identification sleeves to be threaded on to conductors are supplied in a holder 12 which is lodged in recess 17 so that the sleeves 11 fall down bore 18 formed in block 15. The bottommost sleeve falls into depression 19 of drum 16 which is rotated to present the sleeve opposite aperture 20. The operator pushes the conductor into aperture 20 so that the sleeve in depression 19 is threaded thereupon and withdraws the conductor together with the sleeve. The drum may be formed with a plurality of depressions 19 which serve a plurality of bores 18 so that a plurality of different sleeves 11 may be presented at a series of apertures 20 to be threaded on appropriate conductors. Specification 945,364 is referred to.
Patent GB-1446319-A (GB)
Title: Ceiling suspension clip
IPC: F16B5/06
Filed: 1973-08-09
Abstract: 1446319 Suspended ceiling suspension clip ARMSTRONG CORK CO 9 Aug 1973 [9 Aug 1972] 37729/73 Headings E1W and E2B A U-shaped clip 2 for securing suspended ceiling runners 16 to ceiling joists, not shown, comprises resilient converging side arms 6 adapted to engage the sides of a ceiling joist and has a slot extending transversely across the base 11 of the clip from one resilient side to the other and up each said resilient side 12. Resilient spring fingers are also provided projecting into the region of the slot so as to grip a portion 18 of a ceiling runner introduced into the slot. The ceiling runners may be of T-shaped cross section and the arms 6 of the clip may be provided with struck out tangs 8 to engage the joist sides. The clip may be formed of spring steel or other resilient materials.
Patent GB-1378087-A (GB)
Title: Fuel dispensing system with indicator verification means
IPC: G06M3/12
Filed: 1972-08-14
Abstract: 1378087 Dispensing liquids VEEDER INDUSTRIES Inc 14 Aug 1972 [27 Sept 1971] 37832/72 Heading A4T [Also in Division G4] In a fluid dispensing system having segmented numerical indicators for registering amount of fluid delivered and price, the operation of the numerical indicators is checked before and/or after dispensing by switching all segments on and off together. As shown, motor 12 drives pump 10 of a fuel dispensing system and pulses generated by flowmeter 14 are passed to counter 22 for display at 30 as volume dispensed and to computer 20 for calculation of price which is displayed at 28. The pre-set price per unit volume is displayed at 32. To ensure that all segments of the seven segment display unit are operating correctly they are switched on and off both before dispensing and after the dispensing when the figures have been displayed for a short time. Control handle 46 is operated prior to removal of dispensing nozzle 16 and this turns control unit 50 to its ON position. The ON cycle circuit 72 is switched on by lead 72, lead 71 signals the circuit 72 to actuate decoder driver circuits 34, 36, 38 and switch on all display segments At the same time, 'time control' 64 is actuated and supplies pulses from clock 66 to counter 68. When a predetermined count is reached, a first counter output sends a signal to the decoders to blank out the indicators. At the next predetermined count the indicators are reset; 28 and 30 to zero and 32 to the unit price. Simultaneously the pump motor 12 is actuated ready for dispensing and the time control is turned off by a signal from circuit 72. Upon completion of fuel delivery, handle 46 is turned to its off position, time control 64 is again switched on and "OFF cycle circuit" 74 and indicator termination 76 are also actuated. Circuit 74 responds to a third output pulse from the counter and switches on all display segments and then switches them all off. The display is then returned to its correct reading. After several minutes a fourth pulse from counter 68 causes the indicator termination 76 to switch off the volume and cost sections of the display; the unit price section being protected by diode 82 and remaining on. The display may be restored by switch 84.
Patent GB-1167869-A (GB)
Title: Improvements relating to the production of Micro-Crystalline Waxes
Inventor: COLLIER ALAN
IPC: C10G73/40
Filed: 1966-12-05
Abstract: 1,167,869. Refining micro-crystalline wax. BRITISH PETROLEUM CO. Ltd. 18 Oct., 1967 [5 Dec., 1966; 17 Aug., 1967], Nos. 54275/66 and 37860/67. Heading C5W. Flexible micro-crystalline waxes are obtained from feedstocks containing micro-crystalline and n-paraffin wax by selectively converting the n-paraffin wax with hydrogen in the presence of a catalyst comprising a Group VI or VIII hydrogenation component incorporated with a crystalline mordenite of less than 2% by weight alkali metal content. The catalyst may be obtained from a normal mordenite of formula where n is the valency of Me, by decationization to a SiO 2  : Al 2 O 3  ratio of at least 14 : 1, preferably 16-25 : 1, followed by ion exchange with a platinum group metal in an amount 0À01-10% by weight of the catalyst; 0À1- 5% Pt or Pd is preferred. Process conditions may be a temperature of 400-800‹ F., a pressure of 100-3000 p.s.i.g., a space velocity of 0À2-20 v/v/hr. and a gas rate of 500-20,000 S.C.F. hydrogen/B. The process may be effected at any wax production stage subsequent to de-asphalting, preferred feedstocks being a bright stock slack wax, or a de-oiled wax.
Patent GB-1281765-A (GB)
Title: Precision fluid flow control valve
IPC: F16K3/02
Filed: 1970-08-06
Abstract: 1281765 Valves LABORATOIRE SUISSE DE RECHERCHES HORLOGERES 6 Aug 1970 [25 Aug 1969] 37963/70 Heading F2V A valve comprises a perforated member 8, Fig. 1, rotatable between elements 10 to control flow through ports 9 and 11, the facing surfaces of member 8 and elements 10 having an optical precision finish of at least 2/10 #5500 Š and a hardness on the Vickers scale of at least HV = 600 kg./mm.<SP>2</SP>, springs 12 pressing the surfaces against one another so as to obtain a fluid-proof joint without the aid of a gasket or other sealing means. The facing surfaces comprise sintered carbides, a thermochemical deposit of titanium carbide, or a diffusion layer obtained by chromization. In another embodiment, Fig. 3, a ported plate 18 is rotatable to align ports 19 with ports 22 in two facing plates. Rotation is limited to 60 degrees by a slot 20 in which the operating handle 17 moves or by a pin-and-slot arrangement 26, 27. A ball 29 acts as a locking element for the plate. In a further embodiment, Fig. 4, a perforated spherical member 33 is clamped between perforated elements 31 and 32 by means 34. The member 33 is provided with twenty-three perforations (only four of which are shown) and is moved through a neutral position, in which all the perforations are closed, before moving to another aligned position.
Patent GB-1014960-A (GB)
Title: Improvements in or relating to sliver coilers
IPC: B65H67/04
Filed: 1964-09-18
Abstract: Sliver coiling apparatus of the type having a rotating tube plate has sliver severing means comprising a wiper-for example a flexible strip or a roller the rotation of which is prevented by a pawl and ratchet mechanism during the wiping action-arranged to wipe over the lower surface of the plate when the sliver cans are changed.  The wiper may be mounted on the can ejector rod.
Patent GB-1011627-A (GB)
Title: Improved apparatus for advancing conveyor belts
IPC: B41F15/18
Filed: 1964-09-18
Abstract: 1,011,627. Endless conveyers. FRITZ BUSER A.G. Sept. 18, 1964, No. 38265/64. Drawings to Specification. Heading B8A. The subject-matter of this Specification is substantially the same as that described in Specification 1,012,294, but the claims are concerned with means for moving at least two driving elements longitudinally of the conveyer belt.
Patent GB-350986-A (GB)
Title: Improvements in and relating to devices for securing co-operating screw-threaded members
IPC: H03J3/00
Filed: 1929-12-13
Abstract: 350,986. Lock nuts. DUCHATEL, E. E. H., 87, Boulevard St. Michel, Paris. Dec. 13, 1929, No. 38286. Convention date, Dec. 21, 1928. Void [Published under Sect. 91 of the Acts]. [Class 89 (i).] The bolt a provided with slots h, is threaded to receive a tapered stud g. In a modification, a slotted conical extension on the nut is gripped by a threaded ring.
Patent GB-962107-A (GB)
Title: Improvements in or relating to governor-controlled hydraulic systems
Inventor: MOSS NORMAN
IPC: G05D13/00
Filed: 1959-11-11
Abstract: 962,107. Fluid-pressure servomotor control systems. PLESSEY CO. Ltd. Nov. 11, 1960 [Nov. 11, 1959; Nov. 20, 1959], Nos. 38322/59 and 39468/59. Heading G3P. A governor-controlled hydraulic system wherein a positive-displacement pump 2, Fig. 1, driven at substantially constant speed supplies liquid to a circuit which includes one branch 4 leading to the pump inlet or to some other low pressure point through a metering aperture 6 and a second branch also leading to the low pressure point which contains second metering aperture 13 in series with a variable aperture has the variable aperture controlled by a centrifugal element 6. 7 driven by a shaft 1 whose speed is to be kept constant, a differential piston 11 constituting the servomotor being subject on its smaller-area side to the pressure between the pump and the aperture 6 and on its larger-area side to the pressure between the variable aperture and the aperture 13. The shaft 1 is coupled to the pump 2 and to a shaft 3 having a bore 8 supplied through a chamber 17 from the pump and obturated by the element 6. When the latter begins to uncover the bore 8 pressure rises in chambers 9, 10 to move the piston 11 to the right and reduce the speed of the shaft 1 through a constant-speed drive, such as that described in Specification 952,982. In Fig. 2, a gear pump 21 supplies one side of the piston 33 through a reed type governor 29 and a relief valve 30 for keeping the pressure constant while the other side of the piston is supplied through a duct containing an adjustable bleed valve 28. Actuation of the governor in response to speed changes causes pressure variations on the right hand side of the piston 33 to adjust the speed control.
Patent GB-1327315-A (GB)
Title: N,n-bis-hydroxyalkyl- ethylenediamines
IPC: C07C215/14
Filed: 1971-08-16
Abstract: 1327315 Hydroxyamines PLIVA PHARMACEUTICAL & CHEMICAL WORKS 16 Aug 1971 [17 Aug 1970 12 May 1971] 38340/71 Heading C2C Compounds of the general formula (R 1-3  = H, C 1-4  alkyl) and their salts are prepared by hydrogenating a compound of the formula in an inert solvent in the presence of a platinum or platinum-rhodium catalyst at a pressure of 1-100 atmospheres and a temperature of up to 100‹ C., optionally followed by salt formation.
Patent GB-1184145-A (GB)
Title: Improvements in or relating to Stock Feeders
Inventor: SCRIBNER ALBERT WILLIS
IPC: B21D43/11
Filed: 1968-08-12
Abstract: 1,184,145. Stock feeders. A. W. SCRIBNER. 12 Aug., 1968, No. 38349/68. Heading B3W. [Also in Division B8] A stock feeder comprising a fluid operated stock clamping device 16 mounted on a frame 18 and a fluid operated stock gripping device 32 mounted on a feed slide 36 carried on the frame for reciprocating movement in feed and indexing directions 42 and 43, the feed slide being operated in one direction by a piston and cylinder 26 and continuously biased in the other direction, is operated by means of a valve 10 with two outlet lines one 14 being connected to the clamping means 16 and the piston and cylinder 26, the other 30 being connected to the stock gripping means 36 such that in one operative condition of the valve the feeder partakes of a stock feeding stroke and in a second operative condition of the valve the device performs an indexing stroke. The valve is preferably operated by a cam member 11 operable by the machine to which the stock is fed.
Patent GB-1124335-A (GB)
Title: Beverage concentrate
IPC: A23L2/62
Filed: 1965-09-09
Abstract: A frozen beverage concentrate contains fruit pulp dissolved and dispersed in ice, which concentrate contains materials not derived from fruit and amounts of one or more pulp flotation agents sufficient to assist in supporting the pulp and maintaining it in suspension in a beverage produced by dilution of the concentrate. Pulp flotation agents: (1) a gum soluble in the water of dilution at a temperature of from 32 DEG  to 70 DEG  F., such as sodium carrageenate, proplylene glycol alginate, gum tragacanth, high viscosity sodium carboxymethylcellulose and guar gum, (2) a gum swellable in the water of dilution at a temperature of from 32 DEG to 70 DEG F., such as gelatine, agar, calcium alginate, furcellaran and potassium calcium carrageenate, and/or (3) the employment of fruit pulp in the form which acts as a pulp flotation agent i.e. it has at least 80 per cent of total cells as whole cells, the concentrate being free of fruit juice except for that adhered to the pulp.  Orange, grapefruit, lemon, lime, tangerine, mango, papaya, grape and pineapple concentrates may be prepared.  The concentrates may contain a sweetening agent such as sucrose, dextrose, invert sugar, fructose, mannitol, sorbitol, saccharine and cyclamates; edible acids such as citric, tartaric, adipic and fumaric acids and their alkali metal salts; tri-sodium phosphate; vitamins (specified); plastic fat encapsulated in gum arabic (clouding or opacifying agent); citrus oils encapsulated with sucrose, dextrose, corn syrup solids, gelatine, gum acacia or glycerol into particles coated with an anti-caking material such as tricalcium phosphate; acetaldehyde, ethyl butyrate and cotton-seed oil.  There are disclosed preferred ranges of proportions for the fruit pulp and gum in beverages made by diluting the concentrates.
Patent GB-1156414-A (GB)
Title: Storage and Display Device
Inventor: MACKRIDGE DONALD JOHN
IPC: B42F17/08
Filed: 1966-08-31
Abstract: 1,156,414. Filing papers. D. J. MACKRIDGE. 30 Nov., 1967 [31 Aug., 1966], No. 38919/66. Heading B6E. A file comprises a back board 10 adapted to be mounted on a wall or like vertical surface, and a plurality of open-topped pockets having collapsible sides 16, secured to the back board in staggered overlapping relationship. Each pocket is formed by two collapsible side members 16, a front member such as 14 and a back member such as 15, the back member of each pocket forming the front member of an adjacent pocket. The back member of the uppermost pocket is formed by the back board 10. Each member 14, 15 rests with its lower edge on a step 12, and the lower portion thereof may be glued or stapled to the back board 10. Alternatively, front and side portions may be formed from integral blanks. Two springs 22, each held between two screws 23, 24, bias the pockets towards the closed position. Index references may be written near the projecting top edge of each pocket. Holes (11), Fig. 1 (not shown) are formed in the back board for fixing the file to a wall. The back board 10 may be of plastics material or hardboard.
Patent GB-861871-A (GB)
Title: Photosensitive materials and processing thereof
IPC: G03C1/053
Filed: 1957-12-07
Abstract: 861,871. Photosensitive compositions and procedures therewith. MONSANTO CHEMICAL CO. Dec. 17, 1957 [Dec. 17, 1956(2)], No. 39161/57. Class 98(2) The compositions comprise a photosensitive material and a partial carboxylic acid-partial carboxylic ester obtainable by the copolymerisation of a vinyl or vinylidene hydrocarbon, ester, ether, nitrile or halide and an olefinic alpha, beta-dicarboxylic acid or anhydride or ester thereof, from 5-90 %of the total carboxylic acid plus carboxylic ester groups being aliphatic, cycloaliphatic or aromatic carboxylic ester groups. As described the compositions in organic solvents, or such with a minor proportion of water where the photosensitive material requires this, are coated, exposed and processed by generally conventional methods, the resinous copolymers being sufficiently waterpermeable or solvent or alkali removable for the desired type of processing. Seventy-six of the polymers are described or indicated, and the photographic procedures followed as more particularly described are, Examples 1-17 onecomponent diazotype; Examples 18, 19 twocomponent diazotype; Examples 20, 21 silver bromide directly precipitated into the resin solution which is flowed on to a polyester glass cloth and dried with subsequent neutral amidol development; Examples 22-24 ferric chloride blue-print procedure; Examples 25-28 bichromate relief with acetone/water processing; Examples 29, 30 diazo relief including heat lamp exposure and caustic alkaline wash out of image area; Examples 31-33 diazo intaglio including coupling and ammonia washing out of image (coupled) area. Iron-silver and other iron and silver sensitising systems are referred to briefly. Printing plate production includes relief, intaglio and planographic. Numerous diazo sensitisers, monomers, adjuncts for the polymers such as softeners, hardeners and pigments; solvents, coating methods, supports, couplers and other processing liquids are referred to.
Patent GB-947668-A (GB)
Title: Heat treatment of metals
Inventor: JOHNSON LEONARD TERENCE
IPC: C21D9/50
Filed: 1961-11-01
Abstract: In a modification of the method of heat-treating a weld disclosed in Specification 913,225, the weld is heated by the action of an exothermic composition, which is backed by a box structure containing powder, granules or small pieces of heat-insulating material such as furnace aggregate, vermiculate, asbestos, molochite, chamotte, alumina, or a mixture of light-weight aggregate, fibrous cellulosic material and a binder. The box may be perforated to allow ready access of air.  The exothermic composition may consist mainly of carbonaceous material having within it inserts of aluminothermic material.
Patent GB-842832-A (GB)
Title: Arrangement with means for reproducing sound recordings, for example, a magnetic tape recorder
IPC: G11B27/22
Filed: 1958-12-06
Abstract: 842,832. Magnetic reproducing apparatus. LOEWE, S. Dec. 6, 1958, No. 39393/58. Class 40 (2). In a sound record reproducing apparatus control elements are provided whereby the apparatus is stopped, delayed or reversed in response to the recording level falling below normal level, especially inclusive of gaps and pauses. The embodiment described relates to a dictationmachine having control means for restoring the drive after an automatic stopping has taken place following a pause in the sound reproduction. During normal reproduction the anode current of an output valve 1 energizes a relay 2 to close a pair of contacts 5, 7 and establish a current supply 9 to a prime mover 8. The bias conditions of valve 1 are so arranged that when the signal falls below a certain value the relay 2 drops out and drive is interrupted. Drive may be manually restored by operation of a button 13, or contacts 6, 14 may be arranged to close the circuit of a servomotor 15 which rotates a cam 18 to close intermittingly the circuit of prime mover 8 to slowly advance the record until normal drive is established by a normal signal arriving at the grid of valve 1.
Patent GB-1121792-A (GB)
Title: Magnetohydrodynamic generation of electrical energy
IPC: H02K44/08
Filed: 1965-09-15
Abstract: A self-sustaining solid fuel grain, suitable for providing the ionized working fluid to an MHD generator, consists of polymethyl methacrylate (fuel), ammonium perchlorate (oxidizer) and potassium carbonate (seed) homogeneously mixed together.  The solid grain is moulded and perforated to give the desired burning characteristics. Alternatively, if the grain is not selfsustaining but has a controlled external supply of oxidizer, a homogeneous mixture of 95% by weight of a polymethyl methacrylate monomer seeded with 5% by weight of caesium nitrate may be used.