baber/WOPTO huggingface dataset:
Patent GB-536893-A (GB)
Title: Improvements in or relating to processes for producing copper base boron alloys, and oxygen-free copper base boron alloys of high electrical conductivity
IPC: C22C9/00
Filed: 1939-12-01
Abstract: 536,893. Alloys. STEVENS, A. H. (American Brass Co.). Dec. 1, 1939, No. 31275. [Class 82 (i)] Copper alloys containing boron are made by heating a copper alloy containing a reducing agent, which may be an alkali or akaline earth metal, with an oxygen compound of boron, for example boric anhydride, calcium borate, or borax. Copper may be first alloyed with a small proportion of magnesium and agitated with boric anhydride; or a mixture of powdered coppermagnesium alloy and boric anhydride may be stirred into molten copper ; or copper or a copper alloy may be melted under a slag containing boron-oxygen compounds, and a coppermagnesium alloy added to the melt. The copperboron alloys may also contain any of the following elements : beryllium, alluminium, silicon, phosphorus, sulphur, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, zinc, arsenic, selenium, zirconium, molybdenum, silver, cadmium, indium, tin, tellurium, tungsten, palladium, tantalum, platinum, gold, and lead.
Patent GB-1351838-A (GB)
Title: Vehicles
IPC: B62D27/00
Filed: 1971-07-05
Abstract: 1351838 Vehicles; cabs INTERNATIONAL HARVESTER CO 5 July 1971 [7 July 1970] 31328/71 Headings B7B and B7H A vehicle sub-frame, e.g. driver's cab 16 is attached to the main frame 12 by screws 32 which pass through oversize bores 36 in the wall 28 of the sub-frame and engage tappings 34 in the wall 18 of the main frame. Vertical adjustment is made by means of a pair of screws 24 which engage with nuts 20 which are welded to wall 18 of the main frame and whose heads bear against the top of apertures 30 in the wall 28 of the sub-frame.
Patent GB-844061-A (GB)
Title: Improvements in or relating to electrically propelled vehicles
IPC: B60K1/00
Filed: 1956-10-15
Abstract: 844,061. Controlting vehicles. KAYE, E., SHARP, J. R., and PAYNE, 1. S. Oct. 14, 1957 [Oct. 15, 1956], No. 31353/56. Class 79(5). [Also in Group XXXIV] A brake-operating lever 11 for an electrically propelled vehicle is pivoted at 13 on the vehicle framework 12 and may be locked in the "on" position by means including an element forming an interlock for interrupting the power circuit of the vehicle. A pawl 16 and a ratchet 17, pivoted at 13, operate a switch 29 in such manner that the power circuit is interrupted when the brake is "on" and is restored by a spring 26 when the pawl 16 is released by the driver. A stop 20 engages a slot in the ratchet to limit its movement while an adjustable screw 34 limits the forward movement of the lever 11. When the lever 11 is pulled back the cables 25 apply the brake and the pawl 16 rocks the ratchet 17 to the left against the action of the spring 26 to open the switch 29. As soon as the pawl 16 is released by squeezing a member at the top of the lever 11 the spring 26 restores the ratchet 17 to its original position to close the switch 29. The driving motor may thus be started before the brake is released to prevent the vehicle from running back when on a gradient.
Patent GB-1102503-A (GB)
Title: Digital control of servomechanisms
Inventor: LIDDELL IAN GORDON
IPC: G05D3/18
Filed: 1965-07-23
Abstract: 1,102,503. Selective signalling. NATIONAL RESEARCH DEVELOPMENT CORPORATION. 25 Aug., 1966 [23 July, 1965], No. 31398/65. Heading G4H. [Also in Divisions H2 and H3] A closed loop positioning-system is characterized in that the motor is controlled by siliconcontrolled rectifiers, one for forwards and one for backwards motion, whose firing times are determined by differentially timed pulses obtained by digitizing the analogue error signal.
Patent GB-703925-A (GB)
Title: Improvements in or relating to display stands or like advertising devices
Inventor: MORRIS REGINALD ARTHUR
IPC: G09F1/04
Filed: 1950-12-28
Abstract: 703,925. Collapsible display stands. WEBSTER, Ltd., W. J. Dec. 21, 1951 [Dec. 28, 1950], No. 31457/50. Class 3(2) A display stand or like advertising device is formed from cardboard or like material and comprises a platform 4 to the rear and side edges of which respectively are hingedly secured a back sheet 1 and side wings 2, 3, such hinged members being adapted either to be folded to form a flat pile of sheets or to be extended to bring the back sheet and side wings into substantially vertical planes, a locking member 13 being horizontally secured to the device below and centrally of the platform whereby not only are the hinged members held in their respective positions but a support is provided for the platform member. This device is formed from a single blank which is bent about a horizontal score line 5 to provide the platform 4 and the back sheet 1 and about vertical score lines to provide the forwardly extending side wings 2, 3. The wings 2, 3 are stitched or stapled to downwardly extending flaps 19 provided at each end of the platform 4 and the platform has a downwardy extending front riser 8 which has a rearwardly extending foot strip 10. The locking member 13 is in the form of a tongue secured underneath the platform 10 and has two downwardly extending flaps which support the centre of the platform. Each flap has an upward projection 16 at its rear end and these engage behind the back sheet 1 and are held in position by a slot in a strip 17 which is secured to the rear of the back sheet. To collapse the stand the projections 16 are disengaged from the strip 17 and the foot strip 10 and riser 8 are brought on to the plane of the platform 4. The parts 4, 8 and 10 may then be folded upwardly about two score lines 12 which extend obliquely, one from each rear corner of the platform causing the wings to fold inwardly on top of the platform and back sheet.
Patent GB-1198793-A (GB)
Title: Improvements in or relating to Circular Saw Blades
Inventor: DAY WILLIAM
IPC: B23D61/02
Filed: 1966-07-13
Abstract: 1,198,793. Sawing. NORTH LONDON SAW WORKS Ltd. 11 July, 1967 [13 July, 1966], No. 31488/66. Heading B5L. A circular saw blade comprises expansion slots B extending inwardly from the outer periphery of the blade for minimizing the risk of severe strains developing in the blade during use, at least some of the slots at least at their inner ends being plugged with a material having a temperature coefficient of expansion not greater than that of the metal forming the blade. As described, the blade has three slots B extending inwardly between teeth A2 and terminating in circular holes B<SP>1</SP>. The holes are filled with plugs C which, in addition to having a lower temperature coefficient of expansion than the blade material, are also softer than that material and have a melting point higher than the temperature that can be attained by the blade in use. The plugs may be made of non-ferrous material or synthetic fibres and retained in the holes by deformation into countersinking.
Patent GB-810765-A (GB)
Title: Improvements in preventing the agglomeration of hexamethylene tetramine
IPC: C07D487/18
Filed: 1957-10-10
Abstract: The agglomeration of hexamethylene tetramine is prevented by mixing therewith a small amount of a benzene monocarboxylic acid. Suitable acids are for example, benzoic acid and benzoic acid substituted in the nucleus by halogen atoms or alkyl groups containing 1-4 carbon atoms.  Additions of 0.1 to 1 per cent by weight of acid based on the hexamethylene tetramine are sufficient.  The acid may be mixed with dry crystalline hexamethylene tetramine and if desired, the mixture may be ground. Alternatively, the acid may be introduced into a solution at room or elevated temperature and the hexamethylene tetramine separated, for example, by evaporating the solvent and centrifuging the solid material.  In the examples agglomeration of hexamethylene tetramine is prevented by the addition of (a) benzoic acid; (b) p-chlorbenzoic acid; (c) p-toluic acid; (d) o-chlorbenzoic acid; and (e) o-toluic acid.
Patent GB-943302-A (GB)
Title: Reinforced concrete floor construction
IPC: E04C5/06
Filed: 1961-09-04
Abstract: 943,302. Reinforced concrete floors and ceilings. RHEINBAU G.m.b.H. Sept. 4, 1961 [Sept. 9, 1960], No. 31731/61. Heading E1V. A support structure for a reinforced concrete floor or ceiling comprises a plurality of parallel trusses including bottom chords 2, Fig. 6, a web 4 adapted to constitute a concrete form and plaster carrier, the web being rigid only along axes extending in one direction, and means for securing the web 4 to said bottom chords of the trusses with said axes extending transversely of said trusses. The web 4 may be of expanded metal formed with stiffening ribs 5, Fig. 4, and the securing means may comprise plates 6, adapted to seat within the ribs, carrying wires or rods 7 which may be twisted over the bottom chords 2. The web may also comprise a mat of reeds. A structural steel mat and/or imperforate foils may be inserted between the bottom chords 2 and the web 4.
Patent GB-1384446-A (GB)
Title: Process for the preparation of thiohydroximic esters
IPC: B01J21/04
Filed: 1972-07-06
Abstract: 1384446 Esters of thiohydroximic acids SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 6 July 1972 [8 July 1971] 31732/72 Heading C2C Compounds of the formula in which R<SP>1</SP> and R<SP>2</SP> are substituted or unsubstituted hydrocarbon groups or R<SP>1</SP> may be H, are prepared by reacting R<SP>1</SP>CH 2 NO 2  with R<SP>2</SP>SH in the presence of gamma-alumina. The products are usually obtained as mixtures of the syn and anti isomers; the syn isomer may be obtained by crystallization of the mixed product from an apolar solvent, and the anti form may be isolated from the remaining solution. Also treatment of the anti isomer, or the mixed isomers, with a hydrogen halide, e.g. dry HCl in a solvent, converts the anti to the syn isomer; or treatment of the syn isomer, or the mixed isomers, with toluenesulphonic acid converts the syn to the anti isomer. Pesticidal compounds are obtained by carbamoylation of the products, e.g. with COCl 2  and CH 3 NH 2 ; e.g. the S-(2-cyanoethyl) and S- methyl esters of O-(N-methylcarbamoyl)-thioacetohydroximic acid may be so obtained, and have insecticidal and acaricidal activity.
Patent GB-868441-A (GB)
Title: Manifolding assembly
IPC: B41L1/22
Filed: 1959-09-18
Abstract: 868,441. Manifolding units. PORT HURONSULPHITE & PAPER CO. Sept. 18, 1959 [Sept. 23, 1958], No. 31847/59. Class 16. A manifolding unit comprises a copy sheet 1 which is rectangular, a one-time transfer sheet 2 with a carbon coating 4 on one side which does not extend to the bottom edge, and a separate original sheet 7 the same size and shape as the copy sheet 1, the transfer sheet 2 being connected detachably to the bottom edge of the sheet 1 by spots 5 of a weak adhesive such that the bottom edge 3 of the sheet 2 extends beyond the bottom edge of the sheet 1, and the top free edge 6 of the sheet 2 terminates below the top edge of the sheet 1. Specification 707,072 is referred to.
Patent GB-446827-A (GB)
Title: Improvements relating to valves and apparatus for use in delivering beer and other liquids
IPC: B67D1/12
Filed: 1934-11-06
Abstract: 446,827. Delivering liquids. BOWLER, G. A., 22, Sussex Gardens, Hyde Park, and RITTERSHAUS, F. P., 45, Marville Road, Fulham, both in London. Nov. 6, 1934, No. 31858. [Class 116] [See also Group XXIX] Apparatus for delivering waste and main beer with the aid of an engine, comprises a main supply 14 and an auxiliary glass vessel 9 receiving waste beer, both connected by glass-and-rubber tubing to a three-way piece 12. A glass float valve 10 is arranged at the bottom of the vessel 9 and two float valves at 14<1> ; a tap 18 may also be included in the waste beer line.
Patent GB-450131-A (GB)
Title: A collector for liquid for use in centrifugal apparatus
IPC: B04B11/08
Filed: 1935-04-15
Abstract: 450,131. Centrifugal 1 machines. MILLAR, J. H., .52, Watling Street, Dublin, and GUINNESS, SON, & CO., Ltd., A., Salisbury House, Finsbury Circus, London. April 15, 1935, No. 31861. Convention date, June 22, 1934. Divided out of 450,117, [Group VI]. [Class 23] The separated liquid in a centrifuge is drawn off by a hollow collector 1<a> the mouth 1 of which has a stream-lined cross section and is immersed in the spinning liquid. Vanes 1<d> deflect the flow of liquid at the mouth of the collector. A bracket 4 supports the collector, and its position can be adjusted by means of the screw 7 operated by a hand wheel 8. A member 4b attached to the bracket 4 moves over the scale 11 and serves as an indicator. A similar collector 5<a> of larger size, also supported by the bracket 4, may be used for removing sludge after the liquid has been removed by the collector 1<a>. Specification 450,117 is referred to.
Patent GB-1207465-A (GB)
Title: A power plant employing an engine driven by a gaseous working medium
Inventor: MINTO WALLACE LOUIS
IPC: F01K13/02
Filed: 1968-07-04
Abstract: 1,207,465. 465. Vapour power plant. W. L. MINTO. July 4, 1968 [July 6, 1967J, No.31875/68. Headings F1Q and F1T. A prime mover system comprises a gaseous fluid driven engine 18, a boiler 11 containing a drive medium having a latent heat of vaporization of less than 100 gram calories per gram and a boiling point less than 95 C. at atmospheric pressure, a superheater 15, a condenser 20, exposed to a cooling medium and connected to the outlet of the engine for liquefying the outlet gases from the engine, the drive medium being non-flammable and having a critical temperature higher than the temperature of the cooling medium, means 22 for injecting liquid drive medium from the condenser into the boiler and means including an adjustable power or speed control throttle 17 valve connecting the outlet of the superheater to the inlet of the engine. The engine may be a turbine or a reciprocating engine. A number of halogenated hydrocarbons suitable for the working fluid are specified.
Patent GB-244535-A (GB)
Title: Improvements in boxes or containers for powders and powder puffs
IPC: A45D33/00
Filed: 1925-12-17
Abstract: 244,535. Brodrich, L. H. Dec. 17, 1924, [Convention date]. Partitioned boxes; covers.-A box 10 for containing face powder and a powder puff comprises a portion 26 forming the powder receptacle and closed by an imperforate frangible top 34 forming the bottom of the puff receptacle 25 which is closed by an imperforate frangible top 35; the box is closed by a cover 17. As shown, the box has an integral bottom 28 and the puff receptacle is formed of an annular member 33 with imperforate frangible ends 34, 35 secured thereto by paper 36; after the powder has been filled into the box the puff receptacle is fitted tightly above it. In a modification the puff receptacle is formed in the top of the box before being filled with powder, the bottom of the box having a central opening through which the powder is introduced and which is then closed by a disc and paper covering. The box has an interior annular member 32 which extends above the body portion 27 and forms a seat for the cover which has a double domeshaped top 30 reinforced by a member 31.
Patent GB-520949-A (GB)
Title: Improvements in or relating to power supply apparatus
IPC: B23K11/24
Filed: 1938-11-04
Abstract: 520,949. Electricity supply systems. WESTINGHOUSE ELECTRIC MANUFACTURING CO. Nov. 4, 1938, No. 31952. Convention date, Nov. 6, 1937. [Class 38 (iv)] Equalizing load on generator.-A welding circuit 3, Fig. 1, is supplied with intermittent pulses of power from a source 11, 13 through electric discharge devices 15, 17 controlled by further discharge devices 35, 39, 37, 41, and voltage fluctuations on the supply line are avoided by the provision of a second.load 189, Fig. 2, simulating the welding load and controlled by similar discharge devices 195, 197, 207, 209, 211, 213, so that during the whole of the periods between the intermittent supply of power to the circuit 3, the load 189 is supplied, and the power taken from the supply is substantially continuous and uniform. A motor 83 drives a disc 84 carrying pins 85 passing through the air gap of a permanent magnet 91 carrying coils 93, 95 whereby the discharge devices 35, 39 control the half-cycles of current for which the devices 15, 17 are conducting ; the discharge devices 37, 41, under the control of a phase - shifting circuit 143 determining the points in these half-cycles at which the discharge commences. Further pins 235 arranged to correspond with the spaces between the pins 85 and on the opposite side of the disc 84 similarly control the supply to the load 189. The phase - shifting circuits for the main and dummy loads are operated by a common member 269 which also operates contacts 291 so controlling a relay 105 that when the supply is started, the dummy load is first supplied with power increasing from zero up to the desired value, and then the two loads are supplied alternately under the control of the pins 85, 225. Specification 488,950 is referred to.
Patent GB-1059605-A (GB)
Title: Stabilizing polyurethanes
IPC: C08K5/13
Filed: 1965-07-27
Abstract: Synthetic elastomers comprising at least 85% of a segmented polyurethane are stabilized against fume discoloration by the presence therein of up to 10% by weight of 1,3,5-trimethyl - 2,4,6 - tris(3,5 - di - t. - butyl - 4 -hydroxybenzyl) -benzene and/or 1,2,4,5-tetramethyl -3,6 - bis(3,5 - di - t. - butyl - 4 hydroxy benzyl)benzene.  The segmented polyurethane is preferably prepared by reacting an isocyanate terminated polymeric intermediate with, e.g. water, hydrazine, organic diamines, glycols, hydrazides or amino alcohols.  Organic diamines are the preferred chain-extending agents and the examples describe the stabilization of a segmented polyurethane prepared by reacting a polytetramethylene ether glycol with p,p1-methylenediphenyl diisocyanate to yield an isocyanate terminated polyether which is then mixed with N,N-dimethylacetamide and chainextended with a mixture of m-xylylenediamine and diethylamine.  The stabilizer is generally added to the final viscous polymer solution which may then be dry-spun to form spandex filaments.
Patent GB-780640-A (GB)
Title: Improvements in or relating to piston rings
IPC: F16J9/26
Filed: 1955-11-09
Abstract: A sintered metal piston ring made by a powder metallurgical process includes 0.25 to 20 per cent by weight of hard particles of aluminium oxide.  The balance of the powder mixture preferably is iron or steel in the form of 50 to 300 mesh powder, with or without 0.3 to 4 per cent finely divided graphite and 0.3 to 2 per cent of a die lubricant comprising powdered zinc stearate or stearic acid.  The aluminium oxide may be in the form of fuzed alumina, "Turkish emery", corundum or tabular corundum, and may be in the form of 100 to 600 mesh powder.  The mixture may be briquetted at a pressure of 20,000 to 120,000 pounds per square inch and then sintered in an inert atmosphere for 4 to 90 minutes at a temperature of 1900 to 2300 DEG F. according to the nature of the metal.  A two-stage sintering also is described.  The inert atmosphere may comprise a mixture of 20 per cent CO, 3 per cent H, and 77 per cent N, or a mixture of 1.5 per cent CO, 1-5 per cent H, and 97 per cent N.  After sintering, the metal may be hot or cold worked to improve its tensile strength and reduce its porosity to between 2 and 13 per cent.  This may be followed by a tempering treatment for 30 to 60 minutes at a temperature between 800 and 1100 DEG F., and a surface-treatment e.g. with iron-manganese phosphate.  Instead of briquetting under high pressure before sintering, the powder may be loosely filled into a mould and may contain a relatively small amount of one ingredient having a lower melting point than the main ingredient.
Patent GB-276945-A (GB)
Title: Improvement in angle blow-off valve
IPC: F22B37/54
Filed: 1926-12-17
Abstract: 276,945. Everlasting Valve Co., (Assignees of Wilson, W. G.). Aug. 31, 1926, [Convention date]. Closure members, simple and double beat lift. -A blow off valve of the angle type for steam boiler service having means for preventing wiredrawing and the scouring of the closure surfaces comprises a seating port which is controlled by a plurality of sharp edges and plane surfaces engaging by line contact in parallel planes perpendicular to the line of movement of the valve. The valve head 5 is loosely mounted on the spindle 4, as shown, and is provided with a projection 5<c> making a partial closure in a cylindrical portion of the seating, as shown; the head also carries a sealing ring 6 of hard metal, such as bronze, loosely secured by the bevelled ledge of a screwed ring 7, the cross section of the sealing ring 6 being relatively small and substantially that of a diamond thereby providing sharp edges at the top and bottom for co-operation with the flat surfaces of the seating and the valve head 5. This sealing ring is slightly flexible and consequently adjusts itself readily to slight inequalities of the seating surfaces, and the sharp edges ensure tight closure even in the presence of grit. The ring 6 is flattened where it contacts with the flange 5a of the valve head 5. The cylindrical portion of the seating merges smoothly into the flat plane part of the seating, as shown, the latter being wide enough to have flat portions on each side of the part with which the sharp edge 6b contacts; the action of the fluid in opening or closing the valve causes any grit deposited on the seating to be swept away.
Patent GB-890059-A (GB)
Title: Improved gearshift mechanism for motor vehicles
Inventor: STOTT THOMAS CHARLES FELIX
IPC: G05G3/00
Filed: 1959-09-22
Abstract: 890,059. Change-speed controls. VAUXHALL MOTORS Ltd. Aug. 18, 1960 [Sept. 22, 1959], No. 32163/59. Class 80 (2). A sliding and turning selector shaft 13 is actuated by a conventional steering-column gear-shift lever and carries at its lower end a yoke 14 bearing pins 15, 16 engageable, according to the axial position of the shaft 13, in slots 8, 8<SP>1</SP> or 9, 9<SP>1</SP> of sleeves 4, 5 linked to the reverse-low and second-third speed shift shafts. The sleeves 4, 5 are rotatably supported on a stationary trunnion 1. The sides of the pins may be flattened to give a larger area of contact with the walls of the slots.
Patent GB-1107778-A (GB)
Title: Heat exchangers and air conditioners
IPC: F24F1/0287
Filed: 1966-07-18
Abstract: 1,107,778. Moving air. E.A. GLUCKSMAN. July 18, 1966, No. 32220/66. Heading F1N. [Also in Division F4] An air conditioning unit comprises finned-tube heat exchangers 12" surrounded by an endless belt 9" carried by pulleys 6", 7" and provided with vanes 10" arranged to propel air over the heat exchangers when the pulleys are rotated. The four heat exchangers shown are separated into pairs by a partition 16", the left hand pair being arranged to be cooled by air drawn from the outside of a building through a duct 2", and the right hand pair being warmed by air drawn from the inside of the building through a second duct 2". The air moved by the vanes is discharged through ducts 3" having fixed vanes. Simplified arrangements are also described, Figs. 1-5 (not shown) in which a single heat exchanger, possibly provided with fixed guide vanes, is surrounded by a vaned belt passing over a pair of pulleys. The belt may be in the form of a punched and moulded thermoplastic, having two parallel bands connected by transverse vanes integral therewith, Figs. 7 and 8 (not shown) or secured in recesses provided in the band, Figs. 9 and 10 (not shown).