baber/WOPTO huggingface dataset:
Patent GB-1033613-A (GB)
Title: Improvements in or relating to flexible packages
Inventor: BOULTING HERBERT JOHN
IPC: B31B27/00
Filed: 1962-03-26
Abstract: 1,033,613. Webs of plastics bags; seaming non-metallic sheet material. H. J. B. PLASTICS Ltd. March 26, 1963 [March 26, 1962], No. 11497/62. Headings B5D and B5K. A web of plastics film is folded upon itself at 11 (Fig. 3, not shown), pairs of transverse welds 27 are made at intervals along the web and a line of perforations 30 is made between each pair of weld lines 27 so that the web may easily be torn into individual bags. In the machine illustrated, a doubled web is fed over a roller 16 (Fig. 2, not shown) preferably coated with silicon rubber, which co-operates with a vertically reciprocating welding head 25 which has two projecting edges 26 to form pairs of welds either by heat seaming or high-frequency seaming. The web is subsequently fed over a bar 20 which has an inserted rubber pad 24 co-operating with a perforating bar 21. The web of bags is subsequently taken up on a roll 23. The web of plastics may initially be folded so that its side edges are coincident or alternatively with one edge projecting beyond the other to form a flap. The transverse welds and lines of weakening may be curved or zig-zag or any other desired form.
Patent GB-237871-A (GB)
Title: Improvements in spring buffers
IPC: B61G11/06
Filed: 1925-05-04
Abstract: 237,871. Krupp Akt.-Ges., F. Aug. 2, 1924, [Convention date]. Buffers; metallic springs.-In a buffer with a spring composed of two helical springs C, D screwed one into the other, the free ends of the combined spring are inserted into annular grooves in abutments E, F, one abutment F being mounted in the buffer shell so as to be easily rotatable, a convex disc f<2> being provided for this purpose. Screws e<2>, f<3> facilitate disengagement of the spring from the annular grooves.
Patent GB-117954-A (GB)
Title: Improvements in Wheels for Railway and Tramway Vehicles and other forms of Rolling Stock for the Purpose of Obviating the Corrugating of the Track Rails.
Inventor: HYLAND CHARLES
IPC: B60B17/00
Filed: 1917-08-11
Abstract: 117,954. Hyland, C. Aug. 11. 1917. Pulleys and driving-drums are formed with one or more peripheral grooves a of sinuous form which may have ductile or hard metal fillings.
Patent GB-1139084-A (GB)
Title: Method of fluxless brazing of aluminium and aluminium alloy parts
IPC: B23K1/00
Filed: 1966-03-16
Abstract: 1,139,084. Brazing. AVCO CORP. 16 March, 1966 [17 March, 1965], No. 11605/66. Heading B3R. In brazing joints between aluminium and/or aluminium alloy parts with an aluminium alloy brazing filler material, the parts and filler being coated with oxide film, the parts and filler are degreased, dried, immersed in a solution of sulphuric acid and water, immersed in overflowing tap water for about one minute, immersed in a solution of nitric acid and water, immersed in over-flowing tap water for about one minute, spray rinsed with demineralized or distilled water to remove immersion rinse water, dried and then brazed in an inert atmosphere. An aluminium alloy honeycomb or corrugated core 10 is to be brazed to aluminium alloy face sheets 12, 14 to form a sandwich enclosed by aluminium alloy end walls 15 with aluminiumsilicon alloy filler clad to the face sheets 12, 14. The filler may alternatively be in foil, wire or powder form. The clad face sheets are degreased by wiping with cheesecloth saturated with methyl-ethyl-ketone (MEK) and the core 10 is degreased by vapour degreasing or immersion in MEK. All the parts are dried to evaporate the solvent. The parts are then immersed for 4 to 4¢ minutes in a mildly agitated solution of sulphuric acid and tap water (35% Œ 3% sulphuric acid) and then in overflowing tap water for approx. 1 minute. The parts are then immersed in a mildly agitated solution of nitric acid and tap water (50% Œ 3% nitric acid) and then in overflowing tap water for approx. 1 minute. The parts are then spray rinsed with distilled water to remove the immersion rinse water and then dried, the sheets by towelling and the core in an oven. The parts are then wrapped in untreated paper to await brazing. The core, face sheets and end walls 15 are arranged in a cleaned welded stainless steel envelope 16 having rigid side walls 18, a bottom wall 20 and a flexible top wall 22 and an inlet 24 and outlet 26. Cleaned aluminium slip sheets 28 are arranged above and below the sandwich to be brazed and cleaned aluminium getter 32 is placed at the inlet 24. The en velope is placed in a tool of the type disclosed in Specification 1,067,484 having ceramic platens 33, 34, with cooling ducts 36 and resistance wires 38, supported on refractory insulating structures 40, 42 on steel back ups 44, 46 and thermocouples are welded to the top and bottom walls of the envelope 16 and copper or aluminium spacer sheets 48 are placed above and below the envelope. Copper heat sinks 50 and non-metallic cushion material are also arranged above and below the envelope. The sealed envelope is evacuated, and filled with argon at less than atmospheric pressure and the ceramic platen 33 is lowered to bring pressure on to the envelope. Heating is effected while continuing to pass argon into the envelope until at 965‹ Œ 10‹ F. the current supply to the resistance elements 38 is reduced, brazing is effected at 1085‹ Œ 10‹ F. in 4 minutes and the envelope is cooled with compressed air passed through the cooling ducts in the platens.
Patent GB-199364-A (GB)
Title: Process for the manufacture of hydrogen
IPC: C01B3/10
Filed: 1923-04-30
Abstract: 199,364. Soc. l'Oxhydrique Franþaise. June 17, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Hydrogen. - In the metal-steam process for producing hydrogen, the reduction of the metallic oxide, for example iron oxide, is effected by reducing gases, which are not specially prepared for the purpose, such as coal-gas or coke-oven gases. In the case of coal-gas a portion of the hydrogen and the carbon monoxide only is oxidized, the hydrocarbons present being unaffected and the calorific value of the gas is thereby increased. The heat of the residual gas or its heat of combustion and any waste heat from the gas or coke works may be used to preliminarily heat the reacting gases and apparatus.
Patent GB-473905-A (GB)
Title: A combined hatchway and bureau
IPC: A47B63/04
Filed: 1936-04-24
Abstract: 473,905. Cabinets. KEARNEY, E. W. C. April 24, 1936, No. 11678. [Class 52 (i)] A cabinet and hatchway for insertion in a partition wall has each face formed as a bureau, access to the hatchway 5 being obtained by opening the flaps 1, 11. A cupboard portion 7 surmounts the bureaux and lower drawers or cupboards 8 are also provided.
Patent GB-1505412-A (GB)
Title: Phenolic resins
IPC: C08L61/10
Filed: 1975-03-21
Abstract: Curable phenolic resins which do not contain any unbound (unbonded) phenol and no free formaldehyde and which evolve at most traces of formaldehyde in curing are used for preparing aqueous emulsions by emulsification in water. The phenolic resins are those as are obtained when methylene-bridged novolaks (novolacs) which are not predominantly ortho-structured are reacted with formaldehyde at 20 to 70 DEG C in the presence of from 0.15 to 1 equivalent of basic compounds, based on phenolic hydroxyl groups. The phenolic and/or aliphatic hydroxyl groups present in the phenolic resins may additionally be etherified after the reaction mentioned. The aqueous emulsions can be used as curable components in synthetic resin compositions.
Patent GB-741805-A (GB)
Title: Improvements in and relating to conveyors
IPC: E21F13/08
Filed: 1951-05-22
Abstract: 741,805. Conveyers; hydraulic pushing jacks. SUTCLIFFE, Ltd., R., SYNAC, J., BAINES, L., and WOODWARD, P. Jan. 14, 1953 [May 22, 1951; Feb. 21, 1952], Nos. 11993/51 and 4649/52. Classes 78 (1) and 78 (3). A conveyer capable of distortion along its length is fitted with a number of hydraulic jacks spaced along the length for moving the conveyer laterally, each jack being supplied with hydraulic medium from a common supply line via a control valve which, when operated, diverts the flow of hydraulic medium through the jack associated with the operated control valve, and isolates other jacks to which the hydraulic medium would otherwise pass. The invention is described as associated with a scraper conveyer built up of a number of unit sections capable of relative movement, each unit being fitted with a jack, and the driving head unit being fitted with two such jacks. Each jack comprises a ram tube 15, Fig. 4, with a ram rod 19 and a piston 20 bolted thereto. Externally the rod 19 has an eye 21 by means of which it may be attached to a pit prop shoe. A control valve located in a housing 14 comprises a piston 24 having a control handle 25, and formed with four parts 35 co-operating with annular passages 36 connecting parts 28 ... 33 to the central drilling. Port 28 is connected to the supply line and to port 30. Port 29 is connected to the exhaust line and port 32 is connected to the adjacent working space of the ram tube 15. Port 31 leads back into the supply line. In the neutral position shown, fluid passes on the supply side via ports 28 and 30 to port 31 and on the exhaust side through port 29. Operation of the handle 25 to the upper portion of member 24 breaks the communication between ports 30 and 31 and connects the supply via port 30 to port 32 to operate the ram. Fluid in the ram tube on the further side of the ram 20 passes through the tube 34 to port 33 and thence to the exhaust line via port 29. Operation of the handle in the reverse direction lowers the member 24 from its neutral position whereby the fluid flows from port 28 to port 33 and tube 34 to the further side of the ram and retracts the rod 19 into the tube, fluid on the near side of the ram being exhausted via ports 32 and 29. In each operating position the communication between ports 30 and 31 is broken so that further valves in the line are not supplied with fluid during the operation of one particular valve.
Patent GB-479721-A (GB)
Title: Process of coating metal with a plastic composition
IPC: B29C48/15
Filed: 1937-04-27
Abstract: 479,721. Coating metal by extrusion. REID, J. S. April 27, 1937, No. 11999. [Class 87 (ii)] Metal, preferably in the form of long strips, is coated with a plastic composition such as rubber by heating the metal, subjecting it to a vacuum to remove air &c., cooling it while still being subjected to vacuum, and applying hot plastic composition to the cooled metal without exposing it to the atmosphere. A strip of steel 1 is drawn from a reel 2 through a cleaning tank 4 in which it is submitted to the vapours of a heated cleansing agent 5 such as hydrochloric or sulphuric acid. Dirt and condensed vapours fall into the compartment 8. The strip passes through a sealed chamber 9 which is evacuated by a, pump 10, the strip being heated by an electric resistor- 96 to a temperature below its recalescence point. The strip then passes through a tube 12 provided with cooling fins into a chamber 13 which is cooled by a refrigerator 15, preferably to about 0 C. The tube 12 and chamber 13 are kept exhausted by the pump 10. The strip finally passes through a die 23 where it is coated with plastic rubber supplied by a worm 25. The rubber is then vulcanized. Other plastic material such as guttapercha, ozokerite, or bituminous material may be similarly applied.
Patent GB-542921-A (GB)
Title: Improvements in the deoxidation of iron and steel
IPC: B67B7/70
Filed: 1940-07-24
Abstract: 542,921. Deoxidizing iron & steel. FOUNDRY SERVICES, Ltd., and WEISS, E. July 24, 1940, No. 112103. [Class 72] Molten iron or steel is deoxidised by adding thereto tablets of uniform size and weight produced by the compacting, e.g. in a tabletting machine, of swarf obtained by the machining off aluminium and aluminium alloys. Prior to compacting the swarf may be cleansed by washing and degreased by heating or by centrifuging or by the use of trichlorethylene. To facilitate the removal of aluminium oxide produced in the de-oxidation a fluoride such as cryolite, sodium or calcium fluoride may be mixed with the swarf before it is compacted, e.g. up to 30 per cent. by weight.
Patent GB-252356-A (GB)
Title: Tail-holding carriage for aeroplanes
IPC: B64F1/22
Filed: 1926-05-11
Abstract: 252,356. Barrellier, C. May 19, 1925, [Convention date]. Hand-trucks for use in moving aeroplanes comprise a wheeled chassis upon which is adapted to run a small carriage having mounted thereon a clamp for the aeroplane tail skids, means being also provided for raising the clamp to enable the tail skids to clear the hand-truck chassis. As shown in Fig. 1, the small carriage comprises two pivoted parts 4, 4a which, by means of a screwed rod 34 and nut 35, are adapted to raise and lower a swivel head 6 to which the clamp 8 is pivoted. The carriage is adapted to run on the chassis 1 by means of wheels 5, a cable 15, and a winch drum 16 operated by a shaft 20 and hand-wheel 21. The clamp comprises arms having pivoted jaws 9 and operated by a screwed rod 11 and handwheel 12. In a modification, the small carriage comprises a wheeled frame 37, Fig. 3, having a swivelling head 39 bored to receive a tube 42 which may rotate and also move angularly. The tube 42 has pivoted thereto a tube 44 upon which slides a jaw 45 adapted to coact with a jaw 46. The jaws are operated by a screwed rod 49 and a handle. The tube 42 is caused to move angularly to raise the aeroplane skids by means of a screwed rod 55 and a nut.
Patent GB-527878-A (GB)
Title: Improvements relating to motor vehicles
IPC: B62D21/00
Filed: 1939-04-22
Abstract: 527,878. Road-vehicle spring-suspensions. ROVER CO., Ltd., and WILKS, M. C. April 22, 1939, No. 12147. [Class 108 (ii)] [Also in Group XXXI] The rear end of the chassis frame 11, which terminates in front of the rear axle 15, is supported on the rear axle by laminated springs 14 connected at their rear ends to the vehicle body 13a and between their ends to the axle, the body being made sufficiently strong to act as a substitute for the frame in the vicinity of the rear axle. In the construction shown in Fig. 1 the rear ends of the frame are connected by a transverse member 12 which may be extended to support the body side panels 13, or separate bearers 12a may be welded to the frame for this purpose. At the line 16, below the windscreen position, the frame longitudinals are curved upwards towards the front and the section of the longitudinals is greatest, tapering therefrom both to the front and the rear. In the construction shown in Fig. 2 applied to a vehicle having independently-sprung front wheels the frame is triangular with its base at the front end. The rear end of the triangle is joined to the transverse member 12. The independent spring suspension at the front may be described in Specification 518,597. The body may be mounted on rubber on the frame. In a modification of the construction shown in Fig. 2 the rear transverse member 12 is dispensed with and its place is taken by a transverse member of the body.
Patent GB-844504-A (GB)
Title: Gearing for stopping and starting machinery
IPC: F16D67/02
Filed: 1958-04-16
Abstract: 844,504. Friction clutches; gearing for stopping and starting machinery. DEMAG A.G. April 16, 1958 [April 20, 1957], No. 12175/58. Class 80 (2). [Also in Group XXXV] Driving machinery for mining-apparatus comprises a squirrel-cage electric motor 1 or the like upon the shaft 2 of which is secured a sleeve 3 carrying axially slidably a sleeve 6, masses 4 moving radially outwards under the influence of centrifugal force when the motor is started to slide the sleeve against the bias of a spring 8 so that a frusto-conical clutch disc 7 fast therewith engages a co-operating clutch surface 9 on a driven member, which is formed with a frustoconical brake surface 10 biased to engage a corresponding brake surface 12 on a surrounding casing 13 by a spring 11, increasing speed of rotation of the motor urging the clutch disc 7 further to the right to disengage the brake 10, 11 and transmit drive to a final output shaft. In Fig. 2 (not shown), (see Group XXXV), two electric motors drive through individual clutchbrake combinations according-to the invention to the sun-gear and the ring-gear of a planetary train, the planet carrier of which forms the final output member. Specification 816,192 is referred to.
Patent GB-293934-A (GB)
Title: Improvements in or relating to hub caps for motor vehicle wheels
IPC: B60B27/00
Filed: 1927-05-06
Abstract: 293,934. Kalatzky, I. L. May 6, 1927. Advertising on vehicle wheels.-The hub cap of a vehicle wheel is fitted with a stationary (non- rotary) member carrying a name or other displaymatter visible through an opening or window in the cap. In the form shown in Fig. 2, the stationary member 18 with an enlarged part 20 forming a counterweight is carried on a ballbearing 19 fitted inside the cap 17. The displaymatter is arranged on the part 21 of the member 18 opposite an opening in the cap. In a modification applied to a steering-wheel, the member 18 is formed with a boss having a recess to fit over the nut on the end of the stub axle. In the modification shown in Fig. 7, the displaydevice 55 is carried by a stationary collar 50 between which, and a nut 52 on the axle 10, a ball-bearing 54 is fitted. In the form shown in Fig. 8, a cup 58 fitted in the cap 17. which is closed by a transparent cover 59, contains water or other liquid 57 to support, a buoyant element 56. The display-matter is carried by the member 56 which may be of cork with a loaded base 60.
Patent GB-542044-A (GB)
Title: Improvements relating to roller mills for cereal grain
IPC: B02C4/42
Filed: 1940-07-29
Abstract: 542,044. Roller mills for cereal grain. ROBINSON & SON, Ltd., T., and ROBINSON, C. S. July 29, 1940, No. 12287. [Class 59] Each front roller d is driven by V belts or ropes from a pivotally mounted electric motor b, one motor for each front roller, the motors being arranged within the machine frame and at about the centre of width of the machine, the weight of the motors tending to increase the lengths of drive between motors and front rollers by turning the motors about their pivots. One motor is shown, pivoted at e and adjusted by a rod g. At the right hand side the back roller is driven from the front roller by the chain drive i described in Specification 541,583, and at the left hand side the drive is by spur gear.
Patent GB-184237-A (GB)
Title: Process and apparatus for the conveyance of loose materials
IPC: B03B5/62
Filed: 1921-04-29
Abstract: 184,237. Schloemann, E., [Firm of], and Dobbelstein, O. April 29, 1921. Upward. - current classifiers.-In conveying loose material, such as coal, in a stream of liquid by means of compressed air mixed with the liquid, the pressure is regulated so that o n l y the lighter material is held in suspension while the heavier material such as rock separates by gravity. As applied to the raising of coal from mines, the coal is fed from a hopper l through a shoot f, g. h into an uptake pipe b where it meets a stream of water fed by a surface pump through a down pipe a. Compressed air enters the pipe b at o and forces the mixture of water and coal up the pipe b. The pressure is regulated so that heavy material such as rock separates by gravity and falls into a chamber p provided with valves q, r. If mine water is used, the pipe a may be dispensed with. The valve n of the hopper and the valves i, k of the shoot g are interdependent so that, when the valves n, k, of the shoot g are interdependent so that, when the valves n, k, are open, the valve i is closed, and vice versa. When not in use for convoying, the apparatus may be used for flushing by connecting to the pipe a a pipe t provided with a flap valve u. If used for conveying potash, mother lye is used as the conveying liquid.
Patent GB-1045259-A (GB)
Title: Method for drilling holes in books and similar articles and an apparatus for utilizing the method
IPC: B26F1/16
Filed: 1965-03-24
Abstract: In a method for arc welding of steel without the use of a protective atmosphere or a protective slag, the uncoated electrode comprises <TABS:1045259/C6-C7/1> the balance, apart from impurities (e.g. Mn up to 0.75% and Si up to 0.33%), being iron.
Patent GB-553364-A (GB)
Title: Improvements in and relating to electric thermal switches
IPC: H05B41/06
Filed: 1942-09-04
Abstract: 553,364. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd., Sept. 4, 1942, No. 12499. Convention date, Sept. 5, 1941. [Class 38 (v)] A switch for starting electric discharge devices comprises a thermal strip 12, to which is secured a spring contact arm 13. both embracing and pivotally moving on a stem 11. The outer end of the strip 12 is free to move between stops 25, 26. The pivotal movement of the arms 12, 13 is frictionally restrained by the upward pressure of a leaf spring 19. A heater 22 of small thermal mass lies on one side of the strip 12, and optionally a second heater 33 of large thermal mass may lie on the other. For quick starting the heater 22 is operative, and the strip 12 first moves from stop 25 to stop 26 and then, as it bows moves the contact arm 13, the friction at the pivot 11, tending to give a retarded snap action. To prevent quick successive breaks, if the discharge lamp fails to light, the second heater 33 warms up slowly and keeps the strips in bowed position, and the circuit open for a relatively long time. Specification 292,110, [Class 37], is referred to.
Patent GB-1524647-A (GB)
Title: Device for use in cutting dovetail grooves
IPC: B27F1/12
Filed: 1977-03-24
Abstract: 1524647 Template for cutting dovetail grooves R WOLFF 24 March 1977 [15 May 1976 24 Sept 1976] 12502/77 Headings B4X and B5L Dovetail grooves are cut perpendicular to the plane of one of a pair of planks and parallel to the other of the pair of planks, to enable the planks to be comb-jointed, by a rotary cutter 25 and a template 3, the template comprising a pair of plates 5, 6 at right angles to each other and provided with slots 9, 10 having transverse grooves 18, 19 and 14, 15 in which a T-shaped guide on the cutter engages.
Patent GB-580337-A (GB)
Title: Improvements in abrasive articles and method of making the same
IPC: B24D7/08
Filed: 1944-07-03
Abstract: 580,337. Abrasive articles. NORTON GRINDING WHEEL CO., Ltd. July 3, 1944, No. 12621. Convention date, .July 1, 1943. [Class 60] A reinforced abrasive wheel is formed of abrasive segments 10 mounted permanently on a steel backing plate 12 and rigidly secured thereto by a wire mesh or other foraminous reinforcement 14. The mesh is welded to the backing plate 12 at spaced points 22 before the abrasive material is moulded and countersunk bolts 24 are provided for securing the segmental backing plates to a supporting disc 16.
Patent GB-1044032-A (GB)
Title: Balanced stereophonic demodulator apparatus
IPC: H03D1/22
Filed: 1963-04-01
Abstract: 1,044,032. Stereophonic radio receivers. H. H. SCOTT Inc. April 1, 1963 [May 9, 1962], No. 12884/63. Heading H4L. In a stereophonic radio receiver the composite signal is supplied via a low-pass filter 3 and parallel resistors R 1 , R 2  to the control grids of amplifier valves 7, 7<SP>1</SP> respectively, supplying outputs to corresponding channels A, A<SP>1</SP>. A pair of balanced demodulator circuits consisting of diode bridges B, B<SP>1</SP>, are supplied with the reconstituted subcarrier as a switching signal from oscillator 30 so that alternate half-cycles of the subcarrier short the composite signal to the common earth terminal G 2 . If the circuit is correctly balanced, the switching signal will be excluded from the output circuits A, A<SP>1</SP>. Resistors 22, 22<SP>1</SP> provide negative feedback. A passive reactance element 21 and a passive partially reactive element 22 provide equalization and improve the signal-to-noise rate.