baber/WOPTO huggingface dataset:
Patent GB-1040774-A (GB)
Title: Sanitary toilet seat
IPC: A47K13/20
Filed: 1963-06-21
Abstract: 1,040,774. Roll holders. G. M. TROMP. June 21, 1963 [June 22, 1962], No. 24881/63. Heading A4G. [Also in Division E1] In a toilet seat pivotable between substantially horizontal and substantially vertical positions about a fixed horizontal axis of aligned spindles 4 including hollow seat cushions 5, each containing nip rollers 8, 9 rotatable synchronously and driven by a spindle 15, connected thereto via a freewheel device and biased by a torsion spring 19 to rotate in the direction of slip of this device to wind around the spindle 15 one end of a nylon cord 16, to raise the seat to be substantially vertical with the spring 19 then minimally stressed, when the seat is pivoted to be substantially horizontal, the cord 17 is unwrapped to rotate the rollers 8, 9 which pull a strip 7 of paper over the cushion 5 from a roll 6 therein to be severed by a rib 12 and slot 11 on the rollers 8, 9 simultaneously with the tensioning of the spring 19 for return of the seat to the substantially vertical. The rib 12 and slot 11 do not contact each other, whereas the roller 9 is coated with a material having a high coefficient of friction relative to paper. The edges of the slot 11 in roller 10 may be raised radially above its surface.
Patent GB-208234-A (GB)
Title: An improved screw to prevent pilfering from packing cases and so forth
IPC: F16B35/04
Filed: 1922-09-14
Abstract: 208,234. Cooke, J. D. E. Travis-. Sept. 14,1922. Wood - screws. - A woodscrew for use in boxes &c. where it is desirable to prevent or detect tampering is provided with one or more horns e, f which are hammered into the wood when the screw has been driven home by means of a screwdriver. The horns are formed by making an axial saw-cut in a conical extension from the top of the screw and are semicircular in section. When the horns are bent outwardly, the lower end of the slot conveniently receives the point of the scremdriver. The horns may be barbed or serrated.
Patent GB-1272599-A (GB)
Title: Improvements in etching method and apparatus
IPC: C23F1/08
Filed: 1969-05-16
Abstract: 1,272,599. Etching. PRINTING TECHNIQUES LTD. 16 May, 1969 [20 May, 1968], No. 24992/69. Heading B6J. A cylindrical or other article 24, Fig. 1, e.g. of copper, zinc or magnesium, e.g. to be formed into a printing plate, is etched, e.g. with ferric chloride, in a machine comprising a tank 10 containing the etchant, which is splashed against the article by rotatable paddles 26, Figs. 1 and 3, including V-shaped blades 30 separated by partitions 32, the paddles closely fitting in troughs 40 mounted in the tank so as to project above the surface of the etchant, which passes into the troughs through holes 44 so as to maintain a predetermined amount of etchant in the troughs. Alternatively the troughs may each have a manifold below them supplied with etchant from the tank or from another source.
Patent GB-383948-A (GB)
Title: Improvements in and relating to machines for grinding paints, inks and the like
IPC: B02C4/10
Filed: 1932-09-09
Abstract: 383,948. Grinding paints &c. HOLMES, L. G., 23, Rue des Malades, Huy, Belgium. Sept. 9, 1932. No. 25193. [Class 59.] A machine for finegrinding, mixing, &c. paints &c. comprises a vertical rotating cylinder 1 and two or more segmental vertical pockets 5 closely surrounding the cylinder and open toward the same, for containing the material to be ground. As shown in Fig. 1 the shaft 3 of the grinding cylinder 1 is vertically slidable in a sleeve 17 of a bevel wheel 14, the upper part of the shaft being supported in a bearing 21 in a hopper 22. The bevel wheel 14 is driven by a wheel 15 and a pin 19 on the shaft of the wheel 15 lifts the shaft 3 at each rotation. Grinding pockets 5, Fig. 2, partly surround the cylinder 1 and each is provided with a grinding member 26 and a radial or tangential scraper member 27. The top of the pockets are open and register with openings in the bottom of the hopper 22. A stirrer 25 in the hopper is rotated by the shaft 3. When the hopper is removed from the pockets the latter may be swung out on adjustable hinge pins 9 after removing securing bolts 10. The grinding members 26 may be flat or curved and are slotted at the back where securing bolts 31, of a bracket 28, pass through, the upper end of the bracket being provided with a grinding member adjusting screw 29. The material ground by the grinding member on one pocket is scraped off the cylinder by the scraper on the other pocket and is collected in a trough 33. The pockets may be heated or cooled by means of jackets.
Patent GB-1099827-A (GB)
Title: Fluid dispensing systems
Inventor: WILLIAMS TREVOR JOHN
IPC: B05B9/03
Filed: 1964-06-18
Abstract: 1,099,827. Coating apparatus; spray producers. CLIFFORD COVERING CO. Ltd. May 28, 1965 [June 18, 1964], No. 25217/64. Headings B2F and B2L. A fluid dispensing system comprises a plurality of fluid circuits each connected or adapted to be connected at one end 4 to a source 5 of pressurised fluid and each including a first fluid pressure actuated regulator 6 having an inlet 11 connected to said one end of. the circuit, an outlet 12 and means for progressively restricting and relieving the flow of fluid from inlet to outlet as the fluid pressure at the outlet tends to increase and decrease respectively, a dispensing device 7 having an inlet 19 connected to the outlet 12 of the first regulator 12, a dispensing outlet 22 and a spill -outlet 30, and a second fluid pressure actuated regulator 8 having an inlet 31 connected to the spill outlet of dispensing device 7, an outlet 36 and means for progressively restricting and relieving the flow of fluid from the inlet to the outlet as the fluid pressure at the second regulator inlet tends to decrease or increase respectively. The dispenser 7 is in the form of a spray head having an outlet 22 fitted with a closure 23. The latter is carried at the end of a rod 24 the end of which is acted up by bellows 25 and urged into a closed position by spring 26. Compressed air admitted to bellows 25 from air line 27 serves to operate closure 23 to permit the discharge of fluid. Air may also be admitted to an annular chamber 28 to atomise fluid issuing from the nozzle 29. The regulators 6 and 8 are of conventional design and the pressures at which they operate can be adjusted either by screws 18 or through compressed air pipes 39, 40 in which case the control can be remote. In use regulator 8 is adjusted so that it opens at slightly above the lowest pressure at which spraying is satisfactory and regulator 6 is set at the pressure at which it is desired to spray. When no fluid is being delivered from dispenser 7 regulator 8 is open and regulator 6 tends to close although it cannot be completely closed, thus fluid circulates through the system preventing any clogging. When spraying commences regulator 8 will tend to close and regulator 6 will open to allow free flow of fluid to the dispenser 7. Pressure is maintained in the source 5 by a regulator valve 2.
Patent GB-400757-A (GB)
Title: Improvements in or relating to tyres for bicycles and like vehicles
IPC: B60C7/10
Filed: 1932-09-10
Abstract: 400,757. Wheel tyres. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and HARDEMAN, W. E., Fort Dunlop, Birmingham. Sept. 10, 1932, No. 25259. [Class 144 (ii).] A cushion tyre for bicycles and other light vehicles consists of a sponge-rubber core 1 vulcanized within a tubular rubber cover having a projecting base-portion 2 shaped to fit the wheel-rim 4, one or more helical spring rings 10 being embedded in the base 2. The latter may also be reinforced by fabric insertion 9.
Patent GB-811182-A (GB)
Title: Improvement of photographic prints
Inventor: CHAPMAN KENNETH HAZEL
IPC: G03C1/815
Filed: 1956-08-20
Abstract: 811,182. Photographic papers. IMPERIAL CHEMICAL INDUSTRIES Ltd. Aug. 16, 1957 [Aug. 20, 1956], No. 25361/56. Class 98(2) Photographic light-sensitive silver halide printing paper contains in the paper base or in a subbing, emulsion or overcoat layer, a fluorescent brightening agent which in the form of its free acid has the formula:- wherein R is chlorine, phenylamino or diphenylylamino. Examples are given of adding sodium salts of the agents to gelatine silver halide emulsions coated on a paper base subbed with gelatine hardened with formaldehyde, or to such a subbing layer which is then overcoated with the emulsion and finally with a protective layer of gelatine hardened with formaldehyde. Specifications 623,849, 624,052 and 704,974 [all in Group IV(b)] are referred to.
Patent GB-922114-A (GB)
Title: Improvements in or relating to the electronic correction of colour-representative electrical signals
IPC: G03F3/08
Filed: 1959-07-24
Abstract: 922,114. Copying in colour by scanning. R. HELL. July 24, 1959 [March 11, 1959], No. 25487/59. Addition to 910,180. Drawings to Specification. Class 40 (3). In an arrangement for copying coloured pictures in which " uncorrected " video signals derived by photo-electric scanning of the different colour (red, cream, blue) aspects of the original are sampled, quantized and the quanta combined in predetermined proportions to provide three " corrected " signals for controlling the reproduction process as described in the parent Specification, the " accuracy " of the system is improved by modulating each of the " uncorrected " video signals on to individual saw-tooth (or triangular) waves, each having a frequency of at least twice the highest video frequency and an amplitude equal to at least half a quantum before the sampling and quantizing &c are effected.
Patent GB-601336-A (GB)
Title: Improvements in deposited neoprene latex articles
IPC: C08J7/00
Filed: 1945-10-02
Abstract: Vulcanised deposited neoprene latex articles containing a soluble zinc salt are rendered more resistant to ageing by subjecting them to the action of gaseous ammonia.  In examples a 50 per cent neoprene latex containing zinc oxide, carbon black, soap, wetting and dispersing agents and antioxidants, was extruded into hydrochloric acid solution and the resulting threads dried, vulcanised, and treated with gaseous ammonia for 18 hours.  Thin vulcanised neoprene articles made from the same latex are treated with ammonia for a period of up to two hours.
Patent GB-479370-A (GB)
Title: Improvements in or relating to brushes
IPC: A46B15/00
Filed: 1936-09-19
Abstract: 479,370. Brushes. BULLIVANT, E. E. Sept. 19, 1936, No. 25498. [Class 19] [Also in Group XVII] A brush, more particularly for applying polish to boots and shoes, comprises a tubular handle 1 in the ends of which reversibly fit caps 2 carrying brushes 5. A central partition 1x may be provided to form two compartments for tins of polish.
Patent GB-180956-A (GB)
Title: Improvements in fuel tanks for motorcycles
IPC: B62J35/00
Filed: 1921-09-27
Abstract: 180,956. Gunter, H., and Deutsche Werke Akt.-Ges. Sept. 27, 1921. Fuel containers.-A saddle-shape motor-cycle tank adapted to saddle the top tube d is provided with an auxiliary or reserve fuel-tank g arranged in the space enclosed by the inner side walls of the main tank and the two upper frame tubes d, e. The reserve tank g is secured at its front end to the steering-head by a lug, and felt or similar packing m is arranged between the two tanks. The main tank carries on its upper part a tool-box which encloses the inlets to the two tanks and a depthgauge t. The inlet and outlet to the auxiliary tank pass through the upper and lower frame tubes respectively.
Patent GB-499677-A (GB)
Title: Improvements in or relating to decarbonizing commercial nickel or cobalt
IPC: C22B23/06
Filed: 1937-09-22
Abstract: Commercial nickel or cobalt containing above 0,2 per cent of carbon is decarburized by heating to a temperature above 1000 DEG  C. and below the melting point, preferably not over 1300 DEG  C., in a non-reducing, preferably an oxidizing, atmosphere, so that the final product contains less than 0,05 per cent of carbon.  The final product may be used for the production of ferro-alloys which are as free from carbon as possible.  In an example an alloy produced contains 0,02 per cent of carbon, 49,5 of iron 5 of copper, 10 of aluminium, 22,5 of nickel and 13 of cobalt.
Patent GB-1089748-A (GB)
Title: Improvements in or relating to briquettes of iron powder and the like
Inventor: THIEMANN PETER ALBERT WILLIAM
IPC: C22B1/24
Filed: 1965-06-17
Abstract: Briquettes of iron powder are made by compaction at a pressure of 35 to 100 tons/sq. in. and have incorporated in them 0.5 to 5% by weight of an oxidation inhibitor selected from the salts and bases of the alkali and alkaline earth metals which are alkaline in aqueous solution.  The briquette may also be given a surface coating of the inhibitor.  Preferred inhibitors are sodium carbonate, calcium hydroxide, or trisodium phosphate, but other compounds referred to are dibasic sodium phosphate, sodium metasilicate, sodium benzoate, sodium chromate, sodium nitrite and potassium chromate.  The briquette may be prepared from the product of a known rotary kiln reduction process using gaseous or solid reducing agent, the product being ground and magnetically separated and the inhibitor being added at an appropriate stage prior to compaction.
Patent GB-844624-A (GB)
Title: Improvements relating to electromagnetic wave permeable windows
IPC: H01P1/08
Filed: 1956-10-05
Abstract: 844,624. Waveguide windows. VARIAN ASSOCIATES. Oct. 5, 1956 [Nov. 14, 1955], No. 25774/59. Divided out of 844,621. Class 40(8). [Also in Group XXXVI] A vacuum-tight electromagnetic wave permeable window comprises a plate of electromagnetic wave permeable material mounted in a frame having inwardly projecting protuberances which engage the edge of the plate and centre it in the frame, sealing material being disposed between the edge of the plate and the frame to provide a vacuum-tight seal. The window shown comprises a disc 18 e.g. of alumina ceramic with a metallized edge mounted in a flanged frame 19 made of a ductile material such as copper or of a copper-coated less ductile but stronger material such as iron or nickel. The frame 19 has a plurality of indentations (p) making contact with the metallized edge of the disc 18 and leaving a gap of about 0.003 inch which is filled with a solder alloy 20, e.g. copper-gold, which alloys with the metal on the ceramic and with the frame 19 to form a vacuum-tight seal. The flange of the frame 19 is fixed in an apertured plate 21 which is secured obliquely across the waveguide assembly described in Specification 844,622 and forming part of the output arrangement of the velocitymodulated tube described in Specification 844,621. Specification 844,623 also is referred to.
Patent GB-1096507-A (GB)
Title: Methods of producing photoresists
IPC: G03F7/40
Filed: 1966-06-09
Abstract: 1,096,507. Photographic processes. POWERS CHEMCO, Inc. June 9, 1966 [June 10, 1965; Jan. 25, 1966], No. 25797/66. Headings G2C and G2M. A method of hardening a photo-resist which comprises coating a support with a photo-sensitive layer which contains free hydroxyl, imino or amino groups reactive with organic isocyanates, exposing the material imagewise and developing to remove the unexposed areas and then hardening the remaining areas by treating with an organic isocyanate. Specified isocyanates are ethyl, n-butyl, octadecyl, phenyl and p-chlorophenyl isocyanate; 2, 4-tolylene, p-phenylene, 1, 6-hexamethylene and 1, 5 naphthalene di-isocyanate, polymethylene polyphenyl isocyanate, triphenylmethane tri-isocyanate or an adduct of a trimethylolpropane with tolylene di-isocyanate. In the examples, polyvinyl butyral (which may be carboxylated), shellac, orange shellac, or zein is sensitized with magnesium or ammonium bichromate, or polyvinyl cinnamate is coated on a support, imagewise exposed, developed with an alcohol which may contain benzene, xylene or toluene or a dye and then treated with a solution of isocyanate to harden the resist. The resist may then be baked, etched or electroplated or removed from the support.
Patent GB-717456-A (GB)
Title: Chlorophenoxyacetaldehydes
Inventor: DRAKE LEWIS ROYAL
IPC: C07C47/277
Filed: 1952-10-15
Abstract: The invention comprises chlorophenoxyacetaldehydes of the formula <FORM:0717456/IV (b)/1> where n is an integer not greater than 5. They can be prepared by reacting the corresponding chlorophenoxyacetaldehyde diethyl acetal with at least two molecular proportions of water in the presence of acetic and sulphuric acids. The acetals can be obtained by reacting a sodium chlorophenate with 1 - chloro - 2,2 - diethoxyethane.  In an example, 4-chlorophenoxyacetaldehyde is prepared by heating the corresponding diethyl acetal with sulphuric and acetic acids.  Similarly prepared are the corresponding 2-chloro-, 2,4-dichloro-, and 2,4,6-trichloro-derivatives.  The 2,3,4,6-tetrachloro- and the pentachloro-compounds are also mentioned.
Patent GB-1389557-A (GB)
Title: Servo apparatus
IPC: G05B5/01
Filed: 1972-06-02
Abstract: 1389557 Non-linear circuits TOKYO KEIKI KK 2 June 1972 [4 June 1971] 25892 Heading G4G [Also in Division G3] In a servo system, e.g. for a marine autopilot or power steering gear, of the type in which a servo-drive device 5 is energized by a relay element 4 when an error signal reaches a prescribed upper value and until it falls to a different, lower value, a device 2 which supplies the error signal to the relay has a characteristic which produces a lag for increasing signals only, and the amount of lag is frequency dependent. The object is to avoid too frequent operation of the relay elements. Feedback from the output # is matched at 6 to the input 80 from which it is subtracted at 1 to form the error signal #i. The device 2 comprises an operational amplifier 11 whose output is limited by diodes 21, 22 which may be of Zener type. Fig. 6, shows the desired characteristic; with a steadily increasing error signal (dotted line), the output of device 2 follows the solid line #o. The relay operates at level #, which is reached at P3 instead of P1. The inertia of the system is such that actual correction does not begin until the error has reached P4. At P5 the output #o of 2 equals the input #i, the lag disappears and correction precedes to P6 when the relay is opened and stops at P7 when the momentum has been lost. Circuits for producing the required characteristic.-As shown, the operational amplifier 11 has proportional feedback via 23, 24 and non-linear feedback through network 77; in this, capacitor 19 or 20 (depending upon polarity of the input signal), is charged while the output signal is increasing, the charging current forming a feedback current. When the output is decreasing discharge takes place, e.g .through 26 and 17, and this discharge is not fed back to the amplifier which thus has proportional feedback only at this time. Alternative circuits for the network 77 are described (Figs. 7 to 11, not shown), having the following features in various combinations:- (i) the network is connected to the slider of 23 instead of the point 12, (ii) the diode bridge is re-arranged so that only one capacitor is necessary for either polarity, (iii) the relatively large capacitor is replaced by a small one in the base-emitter circuit of a transistor. The feedback current comprises the sum of the charging current and the resulting collector current; during discharge the transistor is off and although the discharge current constitutes feedback in some cases, this is negligible. In other embodiments (Figs. 12 to 15, not shown), an appropriate lag network is connected in series with the input signal to device 2 instead of or together with the feedback network. In Fig. 15 (not shown), in addition to the feedback network, a lag network is shunted across an input resistor. With this embodiment a "first order lead" characteristic is produced during decreasing error in addition to the lag for increasing error. This is said to stabilise the system.
Patent GB-601833-A (GB)
Title: Method of preforming finned tubing and the product thereof
IPC: F28F1/42
Filed: 1945-10-04
Abstract: 601,833. Rolling finned tubes. CALUMET & HECLA CONSOLIDATED COPPER CO. Oct. 4, 1945, No. 25899. Convention date, June 19, 1944. [Classes 83 (ii) and 83 (iv)] Tubing is provided with internal and external integral fins. A tubular blank A with smooth exterior and axially ribbed interior surface is formed by extrusion &c. and is then acted on by rollers E formed of discs of progressively changing section to raise radially external fins C. Twisting.-The external ribbing causes a slight twisting of the internal ribs and also a slight corrugation of the internal surface.
Patent GB-282317-A (GB)
Title: Improvements in automatic anti-vacuum valves for water mains and the like
IPC: F16K24/06
Filed: 1927-10-01
Abstract: 282,317. Glenfield & Kennedy, Ltd., and Price, O. A. Oct. 1, 1927. Addition to 258,051. Fluid-actuated valves.-An anti-vacuum valve for water mains of the kind described in the parent Specification has the counterpoise mechanism so arranged that a position of poise is attained at a point of the valve travel intermediate the closed and full open positions so that after the valve has opened to relieve vacuum it returns automatically to this position in which it remains to allow air to escape during the refilling of the pipe and only closes when water reaches the valve. The valve member 1 co-operates with a seat 2 and is carried by a spindle 5 secured to a dashpot cylinder 7 supported by links 11 from weighted levers 12 pivoted in a superstructure 9 on the valve shrouding 10. The dashpot may be constructed as described in the parent Specification, or it may comprise an oil container 8 fixed to the casing 9 so as to engage the cylinder 7. During the downward movement of the cylinder oil flows out of the container through non-return valves 29 and on the upward movement is returned through a central pipe 20 provided with side ports 26, the entrance to the pipe being gradually restricted by a needle 24 secured to the cylinder. The pipe 20 is adjustably mounted in a boss 21 on the bottom of the container and a spider 23 at the top and is adjusted by a screw 30 rotatably mounted in a cover 31 and engaging the closed end of the tube. Air vents 2'7, 28 are provided in the tube 20 and the oil container respectively.
Patent GB-587223-A (GB)
Title: Improvements in tipping trailer vehicles
IPC: B60P1/12
Filed: 1944-12-28
Abstract: 587,223. Tip vehicles; rest bars. OSWALD, A. B. (trading as OSWALD & SON, J.). Dec. 28, 1944, No. 25968. [Classes 108 (i) and 108 (ii)] In a two wheeled trailer vehicle tipping about the wheel axle, the means for tipping the vehicle by backward movement of the tractor comprises a telescopic tow-bar 1, 2, the outer sleeve 1 being connected to lugs 3 on the axle 4 and the sliding part 2 being provided with a towing eye and an upstanding strut 7 carrying a roller 9 adapted to roll on an inclined channel 10 and restrained thereon by a stirrup 12, the channel being fixed to the underside of the truck which in the travelling position rests on a support 16 attached to the outer sleeve 1. The sleeve 1 and the sliding part 2 are locked in position by a pin 11 for travelling and a spring- urged bolt 14 is mounted on the part 2 which can be turned when tipping the vehicle so that it automatically drops into one of a series of holes in the bar 2 to limit the tipping angle. Scotches are placed behind the wheels when backing the vehicle for tipping purposes and a jack 17 supports the tow-bar. The height of the tow-bar is adjusted for coupling with the tractor by the jack 17 which slides in a bracket 19 attached to the outer sleeve 1 of the tow-bar, the bracket being provided with a series of holes 20 through any one of which a pin 21 may be passed to rest on the top of the jack, the jack being raised by a tommy bar 26 inserted in one of a series of holes 23 in the bracket and bearing on a pin 22 on the foot of the jack 17 as a fulcrum. The Provisional Specification states that the jack may comprise a rack and pinion adapted to be locked by a spring-pressed catch.