baber/WOPTO huggingface dataset:
Patent GB-748574-A (GB)
Title: Improvements relating to vacuum cleaners
IPC: A47L5/34
Filed: 1953-10-16
Abstract: 748,574. Suction cleaners. HOOVER, Ltd. Oct. 16, 1953 [Oct. 17, 1952], No. 28572/52. Class 8(1). Nozzle height adjusting means for a vacuum cleaner of the handle propelled type in which wheels 11 are mounted on the ends 24 of a cranked shaft 25 and one end 24 rests on a cam 28 having a number of depressions 31 at varying radial distances from the axis of rotation 29, comprises a ratchet 41 secured to the cam 28 and a pawl 40 fixed to a spring 35 secured to the housing at one end and carrying a pedal 37 at the other. Depressing the pedal 37 stresses the spring 35 and causes the pawl 40 to engage the next tooth on the ratchet 41. On releasing the pedal the spring 35 rotates the ratchet and cam and the end 24 engages another of the depressions 31. In a modification the spring 35 is replaced by a coil spring which carries a hook which engages a face ratchet formed on the cam.
Patent GB-753235-A (GB)
Title: Process for treating tows of polycaprolactam filaments
IPC: D06B5/06
Filed: 1953-10-19
Abstract: <PICT:0753235/IV(a)/1> A tow 5 of polycaprolactam filaments, after treatment with a spinning preparation consisting of water or an emulsion of oil in water and subsequent washing in water, is passed over an arched surface of a pressure chamber 1 having one or more narrow, transversely extending slots 2 from which a jet of gas or steam emerges at a pressure of at least 2 atmospheres.  The arched surface has lateral guide surfaces 4.  Air or superheated steam may be used.  The treatment effects more thorough removal of dimers and trimers which tend to form an adherent film on the filaments.
Patent GB-939160-A (GB)
Title: Improvements in or relating to signal storing and frequency band transforming circuit arrangements
Inventor: PLAISTOWE DONALD LEOPOLD
IPC: G01S7/00
Filed: 1960-08-19
Abstract: 939,160. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. May 19, 1961 [Aug. 19, 1960], No. 28866/60. Class 39 (1). [Also in Group XL (c)] A storage cathode-ray tube comprises three storage targets T5, T6, T7, two pairs of beam deflecting electrodes T8, T9 and two pairs of electron beam sources consisting of a double gun T1, T2 and either a split gun T3, T4, as shown, or, a second double gun. Each of the targets consists of a glass plate having a signal plate electrode on the side remote from the guns and carrying on the other side a number of discrete mutually insulated bar-like metallic deposits. The tube is employed in a radar system (see Group XL (c)] in which received echo pulses laid-down on target T6 by means of gun T1 are read-off by means of gun T4, and to ensure that both beams scan together and linearly in step with the pulse repetition frequency of the system (generator 3) the signals generated by scanning targets T5 and T7 by respective guns T2, T3 are utilized by phase comparison with signals derived from the output of generator 3 to derive respective control signals for saw-tooth generators 7 and 13.
Patent GB-536026-A (GB)
Title: Improvements relating to furnaces
IPC: F16L23/036
Filed: 1939-10-27
Abstract: 536,026. Furnaces. GRENE, G. H. S., and WILD-BARFIELD ELECTRIC FURNACES, Ltd. Oct. 27, 1939, No. 28869. [Class 51 (ii)] [Also in Group XXVIII] In a muffle furnace, the furnace liner 1 is clamped to an adjacent cooling section 4 by claw bolts 7 passing through lugs 6 on 4 and engaging a narrow undercut or recessed flange or part flange 1a on 1. The'section'4 may'also have a narrow flange 5 and a packing 8 may be placed between.
Patent GB-1021015-A (GB)
Title: Photographic silver complex diffusion transfer materials and processes
IPC: G03C8/24
Filed: 1963-07-22
Abstract: 1, 021, 015. Photographic transfer processes and materials therefor. GEVAERT PHOTOPRODUCTEN N.V. July 22, 1963 [July 25, 1962], No. 28893/63. Heading G2C. In the silver salt diffusion transfer process, the development and/or the image transfer takes place in the presence of a blue-black toning agent of one of the two formulae wherein X is oxygen or sulphur, R 1  to R 3  are hydrogen or alkyl, R 4  is alkyl or aryl or R 3  and R 4  together complete a carbocyclic ring e.g. a cyclopentene ring. The toning agent and the developer may be added to the processing liquid, the image receiving sheet or the silver halide emulsion.
Patent GB-958171-A (GB)
Title: Improvements in or relating to double-acting reciprocating pumps for liquids
IPC: F04B53/10
Filed: 1962-07-27
Abstract: 958,171. Reciprocating pumps. WELTIS ENGINEERING CO. Ltd., and H. G. WELCH. July 27, 1962, No. 28947/62. Heading F1A. A foot or crank-actuated, doubleacting pump comprises a pump cylinder 4 and valve cylinders 3 and 5 clamped between plates 1, 2, e.g. by bolts, sealing being effected by O rings 32. An inlet shuttle valve 26 in cylinder 5 comprises rubber valve elements 25 mounted on a rod 27 and engageable with seats 29. An outlet shuttle valve 18 in cylinder 3 comprises a rubber moulding having faces 19 engageable with seats 20. The piston comprises a rubber disc 9 clamped between plates 10. In foot operation of the pump, a return spring or a heel-and-toe actuated treadle may be used. The valve cylinders 3, 5 are rotatable for positioning the inlet and outlet conduits 31, 21.
Patent GB-298984-A (GB)
Title: Improvements in actions for typewriting machines
IPC: B41J1/08
Filed: 1928-10-09
Abstract: 298,984. Royal Typewriter Co., Inc., (Assignees of Myers, L. C.). Oct. 18, 1927, [Convention date]. Type-bar actions; case-shift mechanism.-In a sliding type-bar machine, each type-bar is provided with a number of groups of types and is associated with a corresponding number of keylevers, each key-lever being arranged to operate the type-bar, and one or more of the key-levers being arranged to operate also, preferably by means of a yielding connection, a shiftable support for the type-bar. In the action shown in the Figure, the type-bar 1, provided with two pairs a, band c, d of types, is mounted on a rocking support 2 and is operated by either of a pair of key-levers 32, 33. The support is formed with guide-lugs 4 and is provided with a guide plate 6 having guide-lugs 7. The support is guided by a member 64 and has an arm 55 co-operating with adjustable stops 56, 58. The key-levers 32, 33 are connected by links 37, 37<1> to bell-cranks 38. 41 having ears 40, 42 engaging a rock-arm 30 which is connected by a link 29 to a bell-crank 24. The bell-crank is connected by a link 22 to a rock-arm 14 which is connected by a link 10 to the type-bar. The members 14, 24, 30 are mounted on a bracket 16 which can be adjusted by means of a screw 19. The key-lever 33 has a pin 62 engaging a cam 63 on a lever 47 pivoted to a bell-crank 45 which has pin-and-slot engagement 44 with an arm 43 on the support. The movement of the lever 47 is limited by adjustable stops 52, 53, and a spring 50 is arranged between the bell-crank 45 and the lever, the bell-crank and spring forming a yielding connection. When the key-lever 32 is depressed, the support 2 remains at rest and impression is effected from the type c or a as determined by the position of the platen A. When, however, the key-lever 33 is depressed, the support is rocked upwards and impression is effected from the type d or b as determined by the position of the platen. the movement of the support is completed before impression is effected, and thereafter the lever 47 moves idly and the spring 50 yields. A dwell in the cam 63 co-operates with the pin 62 to hold the lever. The support 2, bell-crank 24, and key-levers are provided with returning-springs 60, 27, and 35. When the type-bar is provided with more than two types in a group, the additional key-levers are associated with the above-described yielding connection and a variable shift-stop for the support. The action may be embodied in a poweroperated machine.
Patent GB-799675-A (GB)
Title: Improvements in or relating to axial flow gas compressors and turbines
Inventor: LEWIS GORDON MANNS
IPC: F04D27/02
Filed: 1955-10-13
Abstract: 799,675. Axial-flow compressors and turbines. BRISTOL AERO-ENGINES, Ltd. Oct. 2, 1956 [Oct. 13, 1955], No. 29230/55. Classes 110 (1) and 110 (3). In an axial-flow compressor or turbine, gas is injected into the flow passage through an annular slot or an annular series of slots in a wall of the flow passage, with a component of motion which is directed upstream against the main flow, to reduce the effective flow area in the region of the slot or slots. In the compressor shown, air is tapped off from the delivery or an intermediate stage and passed through conduits 19 and 23 to annular galleries 16 and 22 respectively, from which the air is injected into the flow passage in an upstream direction at about 60 degrees to the compressor axis, through annular slots 18 and 20 respectively (or annular series of slots). The slots, which are of nozzle formation, are adjacent the inlet guide blades 13. The injected air adds energy to the vortices adjacent the tips of the rotor blades 10 which occur at low compressor speeds and which provide a rotating stall pattern, causing the vortices to join up into a single stabilized toroidal vortex. The resultant relative uniform annular stalled zone allows a smooth transition to the fully stalled zone. In addition, the annular zone reduces the effective cross-sectional area available to the main flow, thereby increasing the velocity of the main flow in the inlet stages of the compressor. This improves the matching between the inlet stages and the later stages so that a wider flow range is possible before surging occurs. The injection of air may take place from the outer wall only of the flow passage, either upstream or downstream of the inlet guide blades, or from both the inner and outer walls at a common radial plane upstream of the inlet guide blades. Where the maximum efficiency of the compressor is designed to occur at partial loading, air may be injected immediately upstream of the shortest rotor blades of the compressor, so that the tips of these blades are stalled at speeds above the design speed. The capacity of an axial-flow turbine can be reduced, for example for improving its matching with a compressor in a gas turbine engine at a speed below the design speed, by injecting gas into the turbine flow passage, preferably between a stator blade ring and the next downstream rotor blade ring. The gas may be tapped from the main gas flow passage of the turbine or of the engine or taken from another source. In either a compressor or a turbine, the supply of air or gas to the slot or slots may be controlled by a valve which closes progressively with increase of speed or with increase in the rate of delivery of fuel to the gas turbine engine. The blades may be shrouded.
Patent GB-781169-A (GB)
Title: Manufacture of polyesters
IPC: C08G63/42
Filed: 1953-10-22
Abstract: Polyesters are made by condensing an organic polycarboxylic acid with the cyclic sulphite of an aliphatic diol, sulphur dioxide and water being given off.  Specified acids are adipic, sebacic, maleic, p-phenylene diacetic, p-phenylene dipropionic, phthalic and terephthalic acids and those of formula HOOC-C6H4-R-C6H4 COOH in which R is -S-, -S-(CH2)x-S-, -O-or -O-(CH2)x-O-, x being 1-10.  The cyclic sulphite may be that of ethylene, 1 : 2- or 1 : 3-propylene, or 1 : 4-butylene glycol and it may be used in admixture with a polyol, e.g. ethylene glycol, 1 : 3-propylene glycol or 1 : 2 : 3-propane triol.  Condensation is effected at 120-375 DEG  C. and the final stage is preferably effected under reduced pressure.  Catalysts which may be used are sulphuric acid, p-toluene sulphonic acid, p-toluene sulphonic acid chloride, zinc chloride, alkaline earth oxides or hydroxides, alkali metal alcoholates or phenolates or hydroxides, sodium or potassium glycolate, alkali metal salts of aliphatic or aromatic mono-or di-carboxylic acids (e.g. sodium acetate, sodium benzoate, sodium terephthalate or potassium terephthalate, free metals (e.g. magnesium, zinc, cadmium or lead), or glass powder.  Examples disclose: (1) and (2) wax-like polyesters obtained by condensing adipic acid and ethylene glycol sulphite or 1 : 4-butane-diol sulphite; (3) a fibre-forming polyester obtained by condensing terephthalic acid and ethylene glycol sulphite.
Patent GB-930710-A (GB)
Title: A method of heating by high frequency electric currents
IPC: B23K13/00
Filed: 1960-08-24
Abstract: 930,710. Heating metal members by passage of current. SOC. DE TRAITEMENTS ELECTROLYTIQUES ET ELECTROTHERMIQUES. Aug. 24, 1960 [Sept. 8, 1959; Jan. 8, 1960], No. 29298/60. Class 39 (3). Surface portions 1 and 2 of metal to be welded together or hardened are pre-heated or heated respectively by high-frequency currents passing through a conductive member 5 having surface portions of complementary contour to the portions 1 and 2 and then in the opposite direction through the said portions so that the heating currents are concentrated therein. The currents are conducted to and from the portions 1 and 2 by contact elements 3 and 4. Element 3 has a terminal 6, and element 4 is integral with the conductive member 5 which has a terminal 7, for connection to a high-frequency (one or several kc/s.) generator. Similar arrangements are described for pre-heating the edges of a split tube or the ends of two tubes (Figs. 3 and 4, not shown) and for heating gear-teeth (Figs. 6 and 7, not shown). The conductor 5 may be cooled by passing cooling fluid through a copper pipe brazed thereto, and may itself be hollow and provided with perforations through which quenching water is ejected (Fig. 8, not shown).
Patent GB-1367936-A (GB)
Title: Sponge applicators
IPC: B05C/
Filed: 1972-06-21
Abstract: 1367936 Reservoir applicators RECKITT & COLMAN (OVERSEAS) Ltd 21 June 1972 [23 June 1971] 29381/71 Heading A4K A liquid applicator comprises a web 4 supporting a sponge 13, the web being secured to a container 1 for the liquid by a flexible peripheral wall 6 which spaces the web from the end-wall 2 of the container and which flexes when the sponge is pressed against a surface to be treated such that a stem 11 with an enlarged head 12 which normally closes an aperture 3 in the endwall moves thereby opening the aperture and allowing liquid to flow to the sponge via apertures 10 in the web.
Patent GB-639613-A (GB)
Title: Improvements in and relating to mixing and kneading apparatus
IPC: B01F7/04
Filed: 1947-11-05
Abstract: 639,613. Mixing apparatus. BUSS AKT.- GES. Nov. 5, 1947, No. 29525. Convention date, July 13, 1946. [Class 86] Z-shaped stirrers for a trough mixer are mounted at each end in two bearings to prevent bending in and avoid leakage at the stuffing boxes. The stub shafts of the stirrers 6, 7 are each mounted in a stuffing box 2a &c. and in a bearing comprising two rolling races 9. The races 9 may be replaced by sleeve bearings or a combination of rolling and sleeve bearings may be used. In a modification, the driving gear wheel is placed on the stub shaft, between the two bearings, and the whole enclosed in a fluid-tight casing filled with oil.
Patent GB-750793-A (GB)
Title: Fork lift or industrial trucks
Inventor: HOLMES EDWARD PERCY
IPC: B66F9/14
Filed: 1952-11-21
Abstract: 750,793. Lift trucks. ELECTRO-HYDRAULICS, Ltd. Feb. 16,1954 [Nov. 21, 1952; Feb. 16, 1953; June 25, 1953], Nos..29527/ 52, 4309/53 and 17699/53. Class 78(3). A fork lift truck in which the forks are mounted on a carrier in front of the truck carriage, comprises means for traversing the forks across the truck and positive guide means for ensuring that the carrier is prevented from tipping with respect to the truck carriage or its normally provided support, the positive guide means comprising either a double rack-and-pinion device, or a nut and lead screw device, or a link system or an endless chain mechanism. A fork lift truck as shown in Fig. 1, is fitted with a carriage 2 movable on uprights 3, and a carrier 5 with forks 6 has an upright extension 5a mounting a torsion rod with end pinions traversable over a pair of guide racks 7 on members 4 secured to the carriage. The forks are traversed by a screw 18, Fig. 1, engaging a nut 19 on the member 5a and driven by a motor having a pinion engaging a pinion 21 on the screw. The forks may be traversed by an hydraulic cylinder 11, Fig. 11, the piston 14 of which is fixed to the carriage 2 and the cylinder 11 has a sprocket at each end round each of which passes a chain anchored to the carriage 2 and upright 5a. The carrier is guided by upper and lower rollers 23 engaging in grooves in the members 4. Rollers 26 on a bogie connected to the upright 5a also engage the top of the lower member 4. The forks are removably mounted to slide in a groove 27 on the carrier 5 so that they can be supported to project from either side. The piston 14 is mounted in an end bearing, the piston being fixed and the cylinder movable. Alternatively, the piston may be movable and secured to a member connecting the members 4 and 5a. The carrier may be traversed by an endless chain secured to the member 5a and passing over sprockets at the ends of the members 4. The forks may be mounted to pivot as well as traverse. A motor 38, Fig. 14, is mounted on an extension of member 5a and a bevel-wheel 4 driven thereby engages a pinion on an upright rod mounted in bearings in the member 5a and carrying the carrier 5, operating the motor 38 pivots the forks. The motor may be dispensed with and the traversing mechanism used to pivot the forks. Operating a handle rotates a bevel gear into engagement with the upper pinion on the torsion rod used for traversing. The shaft of the bevel gear has a worm engaging a pinion on the upright rod mounted in bearings in the member 5a and thereby rotates the forks.
Patent GB-891274-A (GB)
Title: Improvements in or relating to whistle signal devices for insertion in tank pipes
Inventor: RUDOLF HENRY JAMES GRAY
IPC: G01F23/00
Filed: 1960-08-26
Abstract: 891,274. Assembling force fits. APPLIED MECHANICS CO. Aug. 26, 1960,No. 29566/60. Class 83 (4). [Also in Group XVIII] A reacher tool for inserting a signal device 30 (see Group XVIII) through the filling opening 100 of a domestic oil tank 20 for force fitting to the tank end of a vent pipe 26 comprises an adjustable arm 110, 112 carrying, at its ends, perpendicular shanks 122, 125 arranged in a common plane, the shank 122 being provided with a gauge pin 130, a handle 124, and a guid. ing device 132, and the shank 125 with a spring 128 for releasably engaging the signal device.
Patent GB-379140-A (GB)
Title: Improvements in hair-clippers
IPC: B26B19/06
Filed: 1931-10-26
Abstract: 379,140. Hair clippers. ROHNER, A., 56, Bahnhofstrasse, Plauen, Voigtland, Germany. Oct. 26, 1931, No. 29645. [Class 131.]. A hair-clipper comprises a lower reciprocating comb a having short broad-edged teeth.e with forwardly-deepening and widening grooves f extending rearwardly on the underside between the teeth, and an upper fixed comb d having upwardly-curved teeth projecting beyond the front of the teeth of the lower comb.
Patent GB-903965-A (GB)
Title: Improvements relating to circular knitting machines
Inventor: JONES EDWARD JAMES
IPC: D04B35/00
Filed: 1959-08-31
Abstract: 903,965. Knitting-machines. INVICTA PLASTICS Ltd. Sept. 8, 1960 [Aug. 31, 1959], No. 29650/59. Class 74 (2). A lubricant drip tray 1, with means facilitating mounting thereof beneath the knitting head of a circular machine, has an opening 5 for the passage of fabric to the take-down rollers 9 and upstanding lips 6, 7 at periphery and opening, respectively. At least the latter lip has a rounded edge and merges smoothly into the parent plate. The opening may be circular, or a slot parallel to the rollers. The tray is mounted on the machine by a bolt 15 passing through an aperture in a nose 3 of the tray and may be tilted towards drain holes 8. The tray may be of a plastics material.
Patent GB-336402-A (GB)
Title: Improvements relating to methods of welding bronze
IPC: B23K35/36
Filed: 1929-10-01
Abstract: 336,402. Tibbenham, L. J. Oct. 1, 1939. Uniting by fusion.-A welding rod for use in welding bronze by the blow pipe flame consists of bronze with a flux coating comprising metallic oxides together with a binder. The coating may consist of 49 parts of boracic powder, 9 parts of sodium borate, 30 parts of one or more metallicoxides, and 12 parts of sodium silicate. The metallic-oxides may consist of iron oxide or copper oxide or both. A metallic-oxide mixture may consist of 13 parts of iron oxide and 17 parts of copper oxide.
Patent GB-1391051-A (GB)
Title: 3-amino-pyrazolones-5, processes for their manufacture and their use as medicines
IPC: C07D231/44
Filed: 1973-06-22
Abstract: 1391051 Aminopyrazolones BAYER AG 22 June 1973 [23 June 1972] 29785/73 Heading C2C The invention comprises compounds of the tautomeric formulae and their salts, wherein R is (a) a phenyl radical carrying one or two identical or different substituents selected from alkyl, phenyl, trifluoromethyl, trifluoromethoxy, nitro, nitrile, carbamoyl, sulphamoyl, alkylamino, fluorine, bromine and iodine radicals but cannot be a phenyl radical carrying trifluoromethyl only as one substituent, or (b) a phenyl radical carrying an annellated, branched or unbranched, saturated or unsaturated, five to seven-membered isocyclic or heterocyclic ring (the heterocyclic ring containing one or more oxygen and/or sulphur atoms); or (c) a phenyl radical carrying as substituent an SO n -alkyl group (n = 0, 1 or 2), an alkoxy group, or an -O-(CH 2 ) n -N(alkyl) 2  group (n = 2 or 3); or (d) a phenyl radical carrying two identical substituents selected from alkoxy and trifluoromethyl groups; or (e) a phenyl radical carrying two different substituents selected from alkyl, phenyl, halogen, alkoxy, trifluoromethyl, trifluoromethoxy, alkylamino, nitrile, carbamoyl, sulphamoyl, -SO n  alkyl (n = 0, 1 or 2) and nitro radicals; or (f) a trichlorophenyl radical; or (g) a naphthyl radical carrying one or two identical or different substituents selected from halogen atoms and alkyl groups; or (h) an unsubstituted #-naphthyl, anthryl or phenanthryl radical. These compounds are prepared by reacting RCH 2 NHNH 2  with CNCH 2 COX or where X is OH, alkoxy, aralkoxy, NH 2  or alkylamino, and Y is alkoxy, aryloxy, aralkoxy, alkylmercapto, aralkylmercapto or NH 2 . Therapeutic compositions having diuretic, saluretic and antihypertensive activity comprise compounds of the above formulae, and may be administered orally, parenterally, rectally, topically or by means of a spray.
Patent GB-966648-A (GB)
Title: Magnetically-coupled multivibrators
IPC: H02M7/53862
Filed: 1962-08-03
Abstract: 966,648. Circuits employing bi-stable magnetic cores, transistor oscillator circuits, pulse modulation circuits. GENERAL MOTORS CORPORATION. Aug. 3, 1962 [Aug. 21, 1961], No. 29905/62. Headings H3B, H3T and H4L. The current through one switch means 16 of a multivibrator is used directly to drive a core 12 to saturation and to reset a core 10 from saturation to an intermediate state, a second switch means 14 resetting core 12 and saturating core 10 during the other half cycle. In the embodiment of Fig. 1, current flowing through transistor 14 and primary winding 20 induces a current in winding 22 which maintains the transistor 14 in its conducting state. The current flowing in primary winding 30 induces a current in winding 32 which cuts off transistor 16. When core 10 saturates the feedback current ceases and transistor 14 cuts off. The flow of current through windings 20 and 30 ceases, inducing currents in windings 22 and 32 which further cut off transistor 14 and switch on transistor 16. The alternate half cycle then proceeds in an analogous manner. A control current from source 58 flowing in windings 24 and 34 produces a bias which affects the degree of reset and thus controls the frequency of the device. The bias current in windings 26 and 36 determines the zero point of the control. A similar embodiment utilizes a transformer to take the bulk of the transistor currents (Fig. 2, not shown). The output of Fig. 1 is taken between the collectors and in the embodiment of Fig. 2 across the output of the transformer.