baber/WOPTO huggingface dataset:
Patent GB-510448-A (GB)
Title: Improvements in or relating to reading and working lamps
IPC: F21V1/00
Filed: 1938-02-01
Abstract: 510,448. Pedestal, ceiling, and wall lamps. WITT, G., DE. Feb. 1, 1938, No. 3122. [Classes 75 (ii) and 75 (iv)] In pedestal, ceiling and wall lamps of the kind in which the light source is vertically adjustable in relation to a reflector so that the area of illumination may be varied, the source and its mounting are flexibly connected with a counterweight in the form of a ring, tassel, or like handpull device. Fig. 1 shows a reading-lamp comprising a reflector b supported above a bowl or vase q on the neck of which is seated the rounded rim r of a tapered tube e, the electric bulb d being carried by a plunger c which is slidable in the tube e and is connected to a ring counterweight n by a ball chain u passing over the rim r. In the overhead lamp shown in Fig. 2, a double conical reflecter m, m<1> is employed, the bulb d being adjustably supported, so as to provide varying degrees of downward and upward illumination, by a cord k passing over pulleys and carrying a weighted tassel n. Fig. 3 shows a similar construction applied to a wall lamp, a half reflector m, m' being secured to a wall bracket s.
Patent GB-728818-A (GB)
Title: Improvements relating to plants for purifying the water of swimming baths
Inventor: MILTON JOHN GEORGE
IPC: C02F1/76
Filed: 1952-02-06
Abstract: 728,818. Purifying water. PERMUTIT CO., Ltd. Feb. 6, 1953 [Feb. 6, 1952], No. 3157/52. Class 46. A plant for purifying the water in a swimming bath comprises a circuit including a pump, a filter and means for adding a sterilising agent to the water and a second circuit including a pump arranged to be driven only when increase in the normal rate or circulation of water is required so as to provide a second flow of circulating water, the second circuit including means independent of those in the first circuit for adding a sterilising agent but not including any filter. Water is withdrawn continuously from a swimming bath 1 by a pump 4 through grids 2 and a pump suction chamber 3. The pump forces the water through a battery of filters 5, alum and soda being introduced on the way at 6. The water leaving the filters passes through an aerator 7 and is chlorinated at 8 before being reintroduced into the bath 1 through a number of inlets 9. When the number of bathers rises a second pump 10, which may or may not be of the same capacity as the pump 4, is brought into operation and the water delivered by it is chlorinated at 11 and immediately re-introduced into the bath through inlets 12 separate from the inlets 9.
Patent GB-288760-A (GB)
Title: Improvements in apparatus for use in the supplying of water to cattle and other animals
IPC: A01K7/02
Filed: 1927-02-04
Abstract: 288,760. Smith, J. Feb. 4, 1927. Filters with loose filtering-materials.-Water on its way to drinking vessels for cattle passes through a filter 6 which comprises a casing having two compartments d, g, the compartment d being provided with a container 7 filled with filtering material such as animal charcoal or the like and perforated at its base and sides. The water enters the compartment g through a pipe 5 passes over a partition h, flows round the container 7 and passes into the filtering material through the perforations, finally escaping through the outlet 8 which may be provided with a gauze tube 8<a>. Valve-controlled discharge pipes 11, 12, are provided for the filter compartments.
Patent GB-268090-A (GB)
Title: An improved grip or coupling element for stranded or solid wire
IPC: H01R4/32
Filed: 1926-02-05
Abstract: 268,090. Barton, P. C. Feb. 5, 1926. Wire strainers.-A grip or coupling element for stranded or solid wire c comprises a plate a having eyelets b provided with nut fastenings b<2> adapted to engage the wire, means being associated therewith for causing the wire to be bent in a plane parallel and also to an undulating formation in a plane at right angles to that of the plate. The latter formation is secured by positioning the eyelets in transverse channelings a<1> formed in the plate a, while the other results from the engagement of the bottom of each eyelet with oblique slots a<5> provided in the channels a<1>. The plate is provided at one extremity with a lip portion a<3> having an aperture a<4> through which the wire is passed prior to fixing while the other end is provided with a coupling hole a<2>.
Patent GB-387836-A (GB)
Title: A new or improved apparatus for playing a game
IPC: A63F9/00
Filed: 1932-02-04
Abstract: 387,836. Indoor games. CHAD VALLEY CO., Ltd., Harborne, Birmingham, and JOHNSON, A. J., Oaklands, Knowle, Warwickshire. Feb. 4, 1932, No. 3310. [Class 132 (ii).] Apparatus for playing a game comprises a number of boxes or receptacles having identification marks such as the names of towns marked thereon, a number of cards or playing pieces also marked with identification marks corresponding to those on the boxes or receptacles, with or without an outer container containing both the boxes and the cards. As shown, the boxes are of cardboard, metal or the like, and each consists of four or more panels 1 hinged together at adjacent edges so that they can fold flat, the top and bottom of the boxes being open. The boxes are designed to represent postal pillar-boxes, the names of the towns being marked thereon, and being chosen to include names of great similarity. The cards 2 are of cardboard, metal or the like and designed to represent postcards, each having a name corresponding to a name on one of the boxes permanently marked thereon. The outer box may be employed as the mail-box from which the cards are distributed.
Patent GB-381438-A (GB)
Title: Improvements in or relating to sealing jars or other containers
IPC: B65D39/00
Filed: 1932-02-04
Abstract: 381,438. Sealing jars. WHITTED, T. B., Woolworth Building, New York, U.S.A. Feb. 4, 1932, No. 3373. [Class 125 (ii).] In a device for exhausting and sealing jars containing food products, a vertically moving head 30 is depressed by hand and is raised by springs 24 fixed to arms 23. The head is guided on a fixed plunger 18 and is connected to an exhaust pump 45 by a pipe coiled at 47, 49. The jars 12 to be closed are carried by a conveyer 10, and the head 30 is brought down on to each by pressing on a button 44<1>, which at the same time closes an air valve 41, and by depressing a spring 39 opens a valve 35 communicating with the exhaust pipe. The end of the spring 39 forms a hinge on which the jar lid 15 is permitted to rise. When pressure is removed from the button 44<1>, air enters through the valve 41 and the lid 15 seats on its packing ring 16, the head 30 being raised by the springs 24.
Patent GB-414651-A (GB)
Title: Improvements in and relating to thermionic amplifiers
IPC: H03F1/08
Filed: 1933-02-03
Abstract: 414,651. Valve amplifying circuits; impedance networks. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, and OURA, H. L., St. Peters, Long Lane, Hillingdon, both in Middlesex. Feb. 3, 1933, No. 3392. [Classes 40 (iii) and 40 (v).] A low-frequency amplifier is provided with a coupling in which the attenuation characteristic can be varied for accentuating the higher voice frequencies or for other purposes ; and provision is made for filtering out a heterodyne whistle or the like. The air-cored inductance 13, Fig. 1, forms a resonating circuit with the condenser 14 and part of the autotransformer 8, a resistance 9 being added to damp the resonance at the higher-frequency settings of the condenser. A further condenser 15 forms with the inductance 13 a rejector circuit for eleminating a heterodyne whistle or the like. The autotransformer 8 may be replaced by a transformer 16, Fig. 2, and the frequency characteristic is varied by means of shunt paths including resistances 17, 19, one of which is increased as the other is decreased. These resistances may be replaced by a potentiometer 20, Fig. 3.
Patent GB-1423512-A (GB)
Title: Fluid pumps motors and internal combustion engines
IPC: F01B3/00
Filed: 1972-01-25
Abstract: 1423512 Reciprocating pumps and motors; axial piston IC engines T W BUNYAN 22 Jan 1973 [25 Jan 1972] 3454/72 Headings F1A and F1B [Also in Division F2] A pump, motor or I.C. engine comprises two banks of cylinders 1, 2 Fig. 1 with pistons 17 connected by rods 18 reciprocated by rockers 22 on an inclined crankpin 11 of a crankshaft 9, inlet and outlet connections 3, 4 being connected to manifolds 5, 6 in cylinder blocks 1, 2 and each cylinder having inlet and outlet ports 28, 29, Fig. 4, the inlet ports of cylinder block 1 being connected to inlet manifold 5 directly and the outlet ports to manifold 6 via ducts 35, and the inlet ports of block 2 being connected to manifold 5 via ducts 36 and the outlet ports to manifold 6 directly. The corresponding inlet and outlet slide valves 30, 31 of the cylinder banks are inter-connected to operate in antiphase by rods 37 passing through ducts 35, 36 and may be operated by a cam 58 on crankshaft 9, Fig. 1, acting via rockers 54, Fig. 4, or by tappets actuated by the pistons 17, Fig. 9 (not shown). The valve-operating cam 58 may be angularly adjusted relative to the crankshaft by a hydraulic vane motor, Fig. 11 (not shown), to vary the valve timing and hence the pump or motor displacement. In Fig. 10 (not shown), fluidpressure operated pistons on the valve rods can be operated to hold the inlet valves open and the discharge valves closed to render selected pairs of cylinders inoperative. For a reversible motor, the tappet valve gear of Fig. 9 (not shown), has alternative settings for each direction of rotation. Crossheads 19 on piston-rods 18 are guided by the side walls of the ducts 35, 36. The ducts are secured to the cylinder blocks by coupling flanges and gaskets (see Division F2). The crankshaft may be an integral forging, or may be constructed in two parts forming two hollow halves of the crankpin which are secured together by a pre-tensioned bolt, Fig. 12 (not shown), balance weights 80, Fig. 1, being provided. A two-part sleeve 11 surrounds the crankpin and has flanges 12 joined by bolts 13.
Patent GB-1043043-A (GB)
Title: Process for making substituted diphenyl ether sulfonates
Inventor: VALENTA JOSEPH CHARLES
Filed: 1964-01-28
Abstract: Diphenyl ether sulphonates of the general formula <FORM:1043043/C2/1> where R is a C8-C18 alkyl group, b is 0 or 1, and c is 1 or 2 are prepared by contacting a substituted diphenyl ether with at least the theoretical amount of chlorosulphonic acid or sulphur trioxide as a sulphonating agent at a temperature of 0-50 DEG  C. characterized in that the diphenyl ether is dissolved in a liquid saturated aliphatic hydrocarbon solvent prior to the sulphonation.  The sulphonation is preferably carried out by passing into the hydrocarbon-ether solution a gaseous mixture of sulphur trioxide and an inert gas.  When sufficient sulphur trioxide has been introduced and has reacted, the sulphonated product, being insoluble in the hydrocarbon solvent, forms a separate lower layer in the reaction mixture. The supernatant hydrocarbon layer may be decanted or drawn off for reuse in the process. The lower sulphonate layer may then be reacted with a base in water sufficient to make an aqueous salt solution.  Liquid chlorosulphonic acid may also be used as the sulphonating agent. Saturated aliphatic hydrocarbons suitable for use as solvents include those containing from four to twenty carbon atoms in the molecule and especially hexane particularly a hexane - rich mixture commercially available from petroleum refining processes. The preferred ratio of reactants is from about the theoretical equivalent amount to about 30% in excess of that amount of the sulphonating agent in relation to the substituted diphenyl ether. When sulphur trioxide is used for the sulphonation, an inert gas, e.g. nitrogen may be used as a carrier and diluent.  The process may be carried out in a batchwise or continuous manner.  A continuous reaction may be carried out in a column in which the gaseous sulphonating mixture is passed upward, countercurrent to the downward flow of a hydrocarbon-ether solution. Examples are given for the preparation of dodecyl diphenyl ether disulphonic acid and dodecyl chlorodiphenyl ether sulphonic acid using hexane and octane as the hydrocarbon solvent.
Patent GB-348135-A (GB)
Title: Improvements in or relating to bottle decanting apparatus
IPC: B67D3/00
Filed: 1930-02-03
Abstract: 348,135. Bottle-tilting appliances. MANNING, J. J., 328, Plumstead Common Road, Woolwich, London. Feb. 3, 1930 No. 3611. [Classes 21 and 125 (ii).] A decanting apparatus for beer bottles, mineral water bottles, &c. comprises a series of buckets 31 for bottles, a series of holders 9 for glasses, and a series of crown cork removers 85. The bottles are first tilted about a pivot 27 by pulling over a handle 29 till the necks rest in supports 24, a spring-pressed stop 63 being meanwhile retracted by a Bowden wire attached to a bucket 31, so that piston-rods 51 carrying pistons 49 are moved upwardly by springs on the frame, thus raising a platform 55 which raises the pivot 27 and tilts the bottles at a rate determined by a cock 73 in a by-pass 71 through which oil &c. flows from a cylinder 47 to a reservoir above it. The apparatus is re-set by pulling over a handle (not shown), which draws the piston-rods down, oil &c. entering the cylinders from the reservoir by valves 45.
Patent GB-1377182-A (GB)
Title: Electrical systems
IPC: F02P15/00
Filed: 1971-02-01
Abstract: 1377182 Automatic control of speed ASSOCIATED ENG Ltd 25 Jan 1972 [1 Feb 1971] 3641/71 Heading G3R [Also in Division F2] Electrical pulses from an engine-driven contact breaker 10 of a primary ignition circuit 12, after processing in a pulse shaper PS monostable vibrator M, and amplifier AM, produce at C pulses of uniform height and width, spaced by distances which decrease with speed increase, which pulses Fig. 2 (C), (not shown) are averaged at 57 to produce a voltage proportional to engine speed, which is fed to electronic control systems respectively controlling drive-ratio of an automatic transmission 58 and engine governor 59. The circuit further includes first and second binary dividers BD, BD2, producing two outputs 51, 52 in which the pulses are of opposite phase and of a width Figs. 2 (e) (f) (not shown) equal to two pulses and two zeros of the C pulse, their purpose being to control unspecified equipment associated with the engine.
Patent GB-1088506-A (GB)
Title: Synthetic composite filaments and fibres
IPC: D01F8/16
Filed: 1965-01-27
Abstract: 1,088,506. Bristles for brushes. J. C. LEWIS. Jan. 27, 1965 [Jan. 31, 1964], No. 3662/65. Heading A4K. [Also in Division B5] A composite synthetic fibre or filament comprises an outer unorientated polyolefine shell or sheath whose radius to annular wall thickness ratio is at least 4 to 1, and a core of a polyurethane foam composition. The fibre or filiament may be made by preparing a polyurethane premix by blending a polyester or a polyether resin, water, and a catalyst for the formation of a polyurethane, adding thereto an organic polyisocyanate, e.g. a di-isocyanate, mixing the resulting composition thoroughly to form a foam-producing composition, and immediately thereafter partly immersing hollow unorientated polyolefine fibres to a sufficient depth in the composition, applying suction to ends of the fibres projecting above .the composition to draw -the composition into the interiors of the fibres and retaining the composition therein until a polyurethane foam is formed therein. The polyolefine may be a high pressure polyethylene, a polypropylene or a copolymer of ethylene and propylene. The fibre or filament may have a longitudinal slit running along the length of the sheath which cuts through the sheath into the core. The slit may cut through to the axis of the core. The polyurethane foam composition forming the core of the fibre may contain a finely divided abrasive compound. The filaments and fibres of the invention may be used in the manufacture of mops, polishing brushes, abrasive stripbrushes, rotary brushes, and liquid retention brushes.
Patent GB-226063-A (GB)
Title: Improvements relating to percussive hand-supported and hand-guided tools
IPC: B25D11/12
Filed: 1924-02-12
Abstract: 226,063. Cunningham, J. W. Feb. 12, 1924. Percussive hand tools.-The hammer piston 28 is mounted inside an open-ended cylinder 22 reciprocated in the barrel by the action of an electro or other motor 7. The hammer piston is driven forwards by the action of the air cushion in the rear end of the cylinder 22, and the retarding action due to the reduction of pressure as the blow takes place is prevented by the successive opening of ports 25, 26 admitting air from a recessed chamber 24 in the cylinder wall. The piston 28 is drawn back by the reduction of pressure in the cylinder as it moves backwards, and at the rear limit of the movement of the piston the space 24 is opened at atmosphere through ports 27.
Patent GB-854191-A (GB)
Title: Improvements in or relating to the production of resinous compositions
Inventor: GRADY DENNIS
IPC: C08F18/08
Filed: 1958-02-05
Abstract: Polyvinyl acetate emulsions are obtained by catalytically polymerizing vinyl acetate by starting the polymerization in an emulsion containing (a) at least 2,2% by weight, based on the weight of the final emulsion, of a protective colloid and (b) from 0,5 to 2,5% of a plasticizer for polyvinyl acetate and then adding vinyl acetate slowly to the emulsion, the amount of vinyl acetate in the emulsion being kept at a concentration not greater than 15% by weight, based on the weight of the emulsion.  The protective colloid may be a hydroxyethyl cellulose, sodium carboxy methyl cellulose, methyl cellulose, benzyl cellulose, gum arabic, gum tragacanth or agar-agar, or a hydrolysed or partially hydrolysed polyvinyl acetate. The plasticizer may be dibutyl phthalate, diethylphthalate, tricresyl phosphate, trichloroethyl phosphate, triethylene glycol dihexoate, dibutyl sebacate or butyl phthalyl butyl glycollate.  The polymerization catalyst may be hydrogen peroxide, benzoyl peroxide, acetyl peroxide, ammonium persulphate, sodium perborate, the ammonium persulphate and potassium metabisulphite redox system or azo-bis-iso-butyronitrile.  Specifications 511,036, 641,653 and 658,426 are referred to.
Patent GB-451508-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J13/20
Filed: 1935-02-06
Abstract: 451,508. Discharge devices. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and WHITAKER, F. P., Old Pastures, Dunchurch Road, Rugby. Feb. 6, 1935, No. 3850. [Class 39 (i)] A device, such as a mercury - arc rectifier, is provided with an anode shield 4 within which is located a control grid 6 and an insulated non-control grid 8 which is adapted to surround the anode 1 in such manner that the discharge from the anode to the control grid and other metal parts must pass through the grid 8. The anode insulator 2 is provided with a recess in which the grid 8 is supported. The grids are cylinders concentric with the anode. A terminal 7 is connected to the grid 6 and baffles 5 may be provided within the shield.
Patent GB-1010700-A (GB)
Title: Improvements relating to flame spectrophotometres
Inventor: BEAN ARTHUR DEREK
IPC: G01N21/72
Filed: 1963-01-30
Abstract: 1,010,700. Flame spectrophotometry. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Jan. 17,1964 [Jan.30, 1963], No.3925/63. Heading G1A. A waveband from the flame of a spectrophotometer is interrupted at a low frequency before its reception by a photo-electric transducer 3 the output of which is given a small gain in a low frequency amplifier 4, the output of the amplifier is combined with a backing-off voltage 6 introduced with a coarse and fine control to zero the detector in the absence of any material introduced into the flame for examination, the combined signals being interrupted at a relatively high frequency by a chopper 8 for subsequent high gain amplification at 10. The output of transducer 3, which is a photomultiplier, is combined with the backing-off voltage by a switch 5 driven in phase with the light chopper 1 from a motor 2. A smoothing circuit 7 eliminates the effects of transient variations in flame intensity. The output of high gain amplifier 10 is shaped and filtered at 11 and 12 to produce a sine wave signal which is given a small gain in amplifier 13. A chopper 14 is employed to sample the centre portion of each alternate sine wave which samples are integrated at 20 to operate a recorder 22. The sampling chopper 14 is governed by a multivibrator 9 which operates self-restoring bi-stable circuits 16 and 19. Circuit 16 is triggered by the leading edge of pulses from 9 and produces a pulse of adjustable width. The trailing edge of the pulses from 16 are used to trigger the adjustable width pulse from circuit 19. By this means the position and width of the sampling pulse is adjustable. A direct indication of the intensity of a particular waveband producer by material introduced into the flame can be given but, as shown, an integral is made of the intensity producer by a given volume of a sample fed to the flame in solution. To this end a timer 23 and an atomising switch is provided as described in Specification 856,442.
Patent GB-1026048-A (GB)
Title: Fog navigation device for road vehicles
IPC: B60Q1/20
Filed: 1965-01-29
Abstract: 1,026,048. Road traffic signals. A. OUGHTON. Jan. 29, 1965, No. 3947/65. Heading G4Q. A fog navigating device for a vehicle comprises three flaps depending from the vehicle, one in the centre and one on each side, the flaps being adapted to be engaged by " cats'- eyes " in the road and when so engaged to close a switch thereby energizing a corresponding lamp in the vehicle as an indication to the driver. When the vehicle is running centrally over a line of cats'-eyes, the corresponding centre light will flash, whereas if the vehicle deviates to one side, the corresponding side light will flash. The flaps may be retracted when not required.