baber/WOPTO huggingface dataset:
Patent GB-444257-A (GB)
Title: Improvements in or relating to plastic materials and to methods of production thereof
IPC: C08F20/12
Filed: 1934-09-17
Abstract: Vinyl esters or the lower alkyl esters of acrylic acid or its homologues, or mixtures of such esters are polymerized in admixture with an aqueous solution of 0,1 to 10 per cent of a polyvinyl alcohol, an amide or metallic salt of polyacrylic acid or its homologues, or mixtures of these, with continuous stirring during polymerization.  The product consists of homogeneous solid granules which may be powder-like in bulk.  The water-soluble polymer may be formed in situ.  The pressure may be above or below atmospheric. Polymerization catalysts such as benzoyl peroxide, hydrogen peroxide, or benzaldehyde may be present.  Plasticizers, dyes or fillers may be added before polymerization.  In examples (1) and (2), methyl methacrylate which may contain benzoyl peroxide in solution is heated with an aqueous solution of polymeric sodium methacrylate; in examples (3) and (4) methyl methacrylate containing benzoyl peroxide in solution is heated with aqueous caustic soda or an aqueous solution of polymethacrylamide.  Specification 427,494 is referred to.
Patent GB-824578-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23Q9/12
Filed: 1957-08-23
Abstract: 824,578. Gas burners. FAURE & CIE. Aug. 23, 1957 [Sept. 14, 1956], No. 26709/57. Classes 75(1) and 75(3) [Also in Group XXIX] A gas burner safety device comprises one or more pilot flame orifices the size and disposition of which are such that the flame becomes unstable and extinguished when the oxygen of the combustion air falls below a critical value, which value is such that the air still supports animal life, and the pilot flame controls a thermostat controlling the gas supply to the burner. On turning lever 22, Fig. 4, anticlockwise sector 19 is rotated against return spring 25 through arm 23 and abutment 24 so that mercury switch 18 closes and an electric igniter 17 is energized and brought adjacent ignition gas nozzles 8. Lever 22 also sets a cock 21 adjusting the gas supply to a cut-off valve 13 controlling the gas to the burner pipe 14. Cock 13, Fig. 3, is opened by turning lever 16 against spring 15 and is held open by bimetal 9 engaging roller 10 when a pilot burner 4 heats the bimetal. Valves 13, 21 may be operated by a single lever. The burner consists of a lower chamber 1 and upper chamber 2 separated by a ported partition 5 whereby gas entering chamber 1 at venturi 3 has a static pressure at ignition nozzles 8 and main burner nozzles 6 to give a stable flame, but is led directly to pilot burner nozzle 4 where it has a dynamic pressure so that the flame is in a retractable condition, i.e. at the limit of its detachment from the nozzle so that should the atmosphere surrounding the burners become deficient in oxygen, the flame becomes detached and extinguished, and bimetal 9 releases the roller to close cock 13. The flames at nozzles 8 and 6 and pilot burner ignition nozzles 7 are not metastable. In alternative embodiments the main and pilot flames are separate and the main gas cock is shut off when a catch is released by a thermal ball and bellows, a bimetal or a thermocouple and solenoid heated by the pilot flame.
Patent GB-1330569-A (GB)
Title: Devices and circuits for detecting false starts in athletic events
IPC: A63K3/02
Filed: 1971-04-19
Abstract: 1330569 S.C.R. logic circuits M WEIDACHER 19 April 1971 [10 April 1970] 26711/71 Heading H3T [Also in Divisions A6 and H1] A device for detecting a false start at athletic events (i.e. a start before the giving of a "start" signal or within a pre-set time after such a signal) comprises an inertia switch (Division H1) connected to a starting block and connected to a monitoring circuit which detects any false start and activates an indicator (e.g. a lamp or acoustic device). As shown, inertia switches K1 to Kn (each connected to a respective starting block) are each in the control circuit of respectide thyristors Th1to Thn having their cathodes connected through respective diodes D1 to Dn to a first control line m connected via a diode D11 to the base of a switching transistor Ts1, the collector thereof being connected to a second line S. If there is a false start, one of the switches, e.g. K1, is closed, the respective thyristor, Th1 is fired and ignites lamps Lp1 and Lp11 and sends a positive pulse to transistor Ts1 which becomes conductive and applies zero potential to the second control line s to prevent any further thyristors firing. For a normal start, a starting pistol PK produces a pulse from a monostable trigger MK, having an adjustable time delay, which is applied to a second switching transistor Ts2 which fires a further thyristor ThA, ignites lamp LpA and, via a diode D12 drives the switch Ts1 to prevent any further thyristors from being fired. Also, if there is a false start, the pulse on line m is applied to a transistor Ts3 which either activates the cocking catch Sp of the starting pistol or drives a further transistor Ts4 to deenergize an electric starting device EP. An adjustable time delay may be included between D11 and R11 to allow several thyristors to fire in the event of several competitors making false starts. The starting pistol may start a timing device, a second inertia switch in each block stopping the device when the switch is closed.
Patent GB-722524-A (GB)
Title: Improvements in apparatus for the industrial compression of gases or vapours
IPC: F04B39/06
Filed: 1951-11-16
Abstract: 722,524. Compressors. GOSSE, P. Nov. 16, 1951. [Nov. 17, 1950] No. 26863/51. Class 8 (1). A gas or vapour compressor is cooled by water injected under pressure into its cylinder B through a plurality of capillary orifices supplied through a pipe G by a pump F driven by an electric motor Y, and pressure responsive means simultaneously control the intake valve X of the compressor and the pump F so that water is fed to the cylinder only when compression is taking place. The compressed mixture is discharged through a pipe I and cooler J into a separator K from which the gas is delivered to a receiver. M and the water passes into a tank C which supplies the pump through a double filter unit E. The .pressure in the receiver M acts on a regulator Q which, at a predetermined pressure, causes the inlet valve to be held open and simultaneously breaks the circuit feeding the motor Y.
Patent GB-991616-A (GB)
Title: Improvements in and relating to weighing apparatus
Inventor: SENIOR ALAN GORDON
IPC: G01G19/08
Filed: 1961-07-25
Abstract: 991,616. Weighing apparatus. KINS DEVELOPMENTS Ltd. July 25,1962 [July 25, 1961], No. 26881/61. Headings G1N and G1W. A weighing apparatus, which may be incorporated on a vehicle and used for weighing and transporting materials e.g. in a steelworks, colliery &c. comprises a weigh platform 28 (Fig. 1) resiliently coupled by bonded steel/rubber compression units 29 to a sub frame 15 carried on four weighing devices 12 respectively mounted at the four corners of the vehicle chassis. Each device 12 comprises a known type resistance strain gauge load cell 13 (Fig. 3) having a cone 23 nesting in a cup 24 at the base of a spring 25 the upper end of which has a cone 26 nesting in a cup 27 on the sub frame. Lateral displacement of the sub frame is absorbed by the springs and only vertical load is applied to the cells 13. Rods 16, terminating in rubber bushes 17 where they are attached to the sub frame and chassis 10 respectively, also rubber compression units 30 between the frame and chassis, restrain the sub frame against lateral movement. The weighcar may be electrically driven by electrically driven by electric motor 11 and connected by trailing cables to a central control where visual indication of weight is given and from where movement of the weighcar is controlled. The weighing mechanism decribed need not be incorporated on a vehicle.
Patent GB-293609-A (GB)
Title: An improved metal powder and a method of producing the same
IPC: B22F1/065
Filed: 1927-10-11
Abstract: 293,609. Kramer, E., and Hartstoff- Metall Alct.-Ges. (Hametag). Oct. 11, 1927. Metal powder is made by working small laminar granules, Fig. 1, into hollow spherical form, Fig. 3, as by rotary beaters 6, Fig. 4, in a container 2. The powder is of 0.5 mm. diameter, or less, and is stated to be particularly applicable in conjunction with graphite, or an insulating material, to the manufacture of dynamo brushes, current collectors, magnet cores for induction coils &c.
Patent GB-985126-A (GB)
Title: A mill drying process and apparatus for performing the same
IPC: B02C21/00
Filed: 1963-07-08
Abstract: 985,126. Tube mills. POLYSIUS G.m.b.H. July 8, 1963 [Dec. 12, 1962], No. 27016/63. Heading B2A. [Also in Division F4] In apparatus for grinding and drying material in a tube mill, the moist material is fed at 1, Fig. 1, into a drying compartment of the mill having tumbler blades 3 and drying gas fed thereto at 4, the dried material being exhausted through apertures 5 in the tube mill wall into a duct 6 and casing 7, respectively. The material passes through a duct 8 to a classifier (not shown) from which the coarse material is passed at 11 into the fine grinding compartment 9 of the mill from which it passes out through a perforated plate 10 and apertures 5 to be combined with the material from the drying compartment 2. Fresh or warm air is introduced into the compartment 9 through a connection 12. In a modification, Fig. 2 (not shown), the milled material from the compartment is not combined with the dried material but passes to a separate duct for passage to a classifier which also serves the stream of dried material, which stream, however, previously passes through a hammer or impact mill from which the coarse material passes to the fine grinding compartment while only the fines pass to the common classifier. In a further form, a coarse grinding compartment 15, Fig. 3, is provided between the drying compartment 2 and the fine grinding compartment 9, and a compartment having a cylinder screen 13 between the drying and coarse drying compartments which serves to deliver screened fines through the apertures 5 into a collecting casing 7 common to all three compartments ; the material from the grinding compartments passing through perforated plates 10, 16 to a common series of apertures 17.
Patent GB-264927-A (GB)
Title: Improvements in telephone systems
IPC: H04Q3/00
Filed: 1925-10-28
Abstract: 264,927. Western Electric Co., Ltd., (Bell Telephone Laboratories, Inc.). Oct. 28, 1925. Automatic exchange systems.-In a system in which switch frames of successive switching stages are so inter-connected that a call may be extended over any switch frame at each switching stage in any desired direction, a plurality of trunks leads from each switch frame of the first stage to every switch frame of the second stage. In the system shown employing thirty-three district selector frames 2304 - - 2308 and thirty-three trunk selector frames 2309 - - 2313 all of which may be of the cross-bar type, the trunks outgoing from each of the district selector frames are divided into three groups of thirty-three and one trunk from each group leads to each of the trunk frames. For example, the first trunk 2322 of the first group 2320 of the first district frame 2304 leads to the first group of the first trunk frame 2309, the second trunk 2323 of the first groups leads to the first group of the second trunk frame 2313, the third trunk 2324 leads to the first group of the third trunk frame 2312, and so on. In a similar manner, the first trunk 2327 of the second group 2321 leads to the second group of the first frame 2309, the second trunk of the second group leads to the second group of the second frame, and so on. The outlets from the trunk frames 2309 - - 2313 lead to inter-office trunks and to local finalselector frames 2314 - - 2317 and are so distributed that any call may be extended over any trunk frame. The operations of the selectors are controlled by markers 2403 temporarily associated with digit registers 2400 and with the respective selectors by multi-contact relays 2402, 2405, 2406, 2408.
Patent GB-449156-A (GB)
Title: Improvements in and relating to thermal switches
IPC: H01H37/00
Filed: 1934-09-20
Abstract: 449,156. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Sept. 20, 1934, No. 27086. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 21, 1935]. [Class 38 (v)] A thermal switch is normally operated by a capsule containing an expansible fluid, but is adapted for operation by the melting of a fusible member in the event of the failure of the fluid member. A heated body I whose temperature is to be controlled has arranged in intimate contact with it a capsule 2 containing an expansible fluid. A fusible ring 12, on a shoulder 2 of the capsule, supports a frame 7 which is biassed towards the body 1 by springs 15, and which has pivoted to it at 6 a lever 5 having a projection 4 which rests on the capsule 2. The frame 7 also has pivoted at 11 a contact arm 10, and carries a fixed contact 8. On an increase in temperature the capsule expands until a diaphragm 3, constituting its upper surface, snaps across causing arm 5 to move up and engage an adjustable screw 17 to move contact arm 10 to break circuit. If the capsule fails to operate, the temperature rises until the ring 12 melts allowing the springs 15 to move the frame 7 downwards together with the switch parts causing the switch to open.
Patent GB-382036-A (GB)
Title: Improvements in or relating to pile-reversing feeds in sheethandling machines
IPC: B65H1/22
Filed: 1931-09-29
Abstract: 382,036. Feeding sheets. POLLAK, J. E., 20, Holborn, London.-(Brehmer Geb.; Plagwitz, Leipsic, Germany.) Sept. 29, 1931, No. 27133. [Class 100 (i).] In a sheet-feeding apparatus for printing, folding, or other sheet-handling machines, of the kind in which a fanned out pile is fed from an upper feed board 11 by tapes or belts 18 around a reversing drum 14, and is advanced to sheet-separating means over a lower board 12 by means of tapes or belts 22, lateral deviation of the sheets is prevented by causing certain of the tapes 18 to move over the board 12 parallel to the tapes 22, the sheets thus being gripped between moving tapes 18, 22 to prevent the deviation. To adjust the apparatus for sheets of different sizes, the tapes 18, 22 are passed over pulleys 17 which are laterally adjustable, and the tapes 18 are acted on by pulleys 27, 34 carried in spring-tensioned arms 28, 33 which are mounted on a laterally adjustable rod 30. Tapes 39 coact with the drum 14 to effect reversal of the sheets.
Patent GB-1004616-A (GB)
Title: A method of producing l-glutamic acid by fermentation
IPC: C12P13/14
Filed: 1962-07-16
Abstract: A culture medium suitable for the growth of Microbacterium ammoniaphilum (ATCC 15354; see Specification 993,699 in Division C2) contains sorbitan mono-oleate as a substitute for biotin.ALSO:L-Glutamic acid is produced by fermentation of a species of Microbacterium ammoniaphilum (ATCC 15354; see Specification 993,699) in a fermentation medium not containing biotin, but containing an oleic ester of sorbitan.
Patent GB-271887-A (GB)
Abstract: 271,887. National Cash Register Co. May 27, 1926, [Convention date]. Keyboard mechanism.-In a cash register &c. having a plurality of banks of non-registering keys b and manually releasable means for latching depressed keys, of the type comprising a key c, which may be placed in any position in any one of the banks and releases all depressed keys in all the banks simultaneously, the key has a flattened pin f to engage an inclined surface g on the latching detent d and a link h connects the detent with a rod i carried by arms i secured to a sleeve I freely mounted on the release shaft m, the rod j engaging hooks k formed on the ends of the other latching detents. Release of the registering keys by the shaft m is effected without release of the keys b. Specification 176,781 is referred to.
Patent GB-603311-A (GB)
Title: Improvements in rotary pumps
IPC: F04C2/32
Filed: 1945-10-18
Abstract: 603,311. Rotary pumps. WEATHERHEAD CO. Oct. 18, 1945, No. 27322. Convention date, Nov. 10, 1944. [Class 110 (ii)] In a rotary pump of the gyratory piston type, the connection between the sliding abutment vane and the piston is by means of resiliently yieldable material. The piston 11, Figs. 1 and 2, is coated with a layer 14 of resilient material, such as natural or synthetic rubber, which laps over the end edges of the piston and extends outwardly at 15 to embrace the inner edge of the abutment 12. The latter is spaced from the piston. The recess 13 in which the abutment slides is flared outwardly at 16, preferably at a greater angle than the portion 15 to allow lateral freedom to the latter.. The layer 14 may be extended along the end edges of the abutment, as at 17. The attachment of the resilient material is preferably by vulcanizing or bonding. In an alternative construction, Fig. 5, the use of resilient material is confined to the connection between the piston and abutment. The cam 32 slidably engages a squared portion 29 of the driving shaft and is urged outwards by a spring 36. The piston takes the form of the outer race 33 of a ball or roller bearing, but it may alternatively bear directly on the cam 32. Ball or roller bearings may be used in the embodiment of Figs. 1 and 2 in place of the plain bearing.
Patent GB-248673-A (GB)
Title: Improvements in game apparatus
IPC: A63F3/00
Filed: 1925-10-31
Abstract: 248,673. McCollom, E. P. Oct. 31, 1925. Board games; card games.-A board is marked cut into a plurality of separately distinguished spaces, a series of cards bearing marks corresponding to those of the spaces on the board being used with the board to play a game. As shown in Fig. 1, the board is marked out by lines 3, 4 into 49 squares, each numbered, and squares bearing a number divisible by 5 are further distinguished by circles 7. The cards 8 are dealt to the players, who then place them in turn on the board according to rules, scores being given on the playing of the cards on predetermined squares. An extra card playable on any square is provided in the pack. The board may be foldable.
Patent GB-764304-A (GB)
Title: Improvements in and relating to refuse collecting vehicles
Inventor: EDWARDS CHARLES KEARNS
IPC: B65F3/22
Filed: 1952-10-31
Abstract: 764,304. Refuse vehicles; raising and tipping bins. SHELVOKE & DREWRY, Ltd. Feb. 1, 1954 [Oct. 31, 1952], No. 27412/52. Class 78 (4). A bin 38 is tipped to discharge into the body 16 of a refuse vehicle as the body tips forwardly about trunnions 18 to trim the load. The body may also be tipped rearwardly about a pivot 14 to discharge the load, and the loading opening is accessible for manual discharge of bins. As illustrated the lifting rail 36 of the bin engages in hooks 34 on a pair of arms 32 carried by the same shaft 30 on the rear door 24 as a pair of arms 58 and normally resting against buffers 60. The arms 58 are engaged by rollers on the ends of levers 52 which, as the body 16 tilts about its trunnions 18, are turned against the bias of springs 54 by cables 40 anchored at points 42 on a sub-frame 12. The bin is thus tilted into engagement with a sealing device similar to that described in Specification 764,305 and forming the face of a hood 46. The velocity ratio of the tipping mechanism is such that the bin is completely inverted when the body 16 has been turned into a vertical position. As. the bin is tipped latches 76 pivoted at 78 to the arms 32 and connected by links 80 to the door close the hooks 34. The bin is prevented from turning through more than 180 degrees by a hook 82 suspended within the hood 46 by chains 84 and springs 86 in position to engage the upper side of the mouth of the bin. The hood 46 may be raised about its hinge 63 to permit bins to be discharged manually over a sill 48 defining the lower margin of the loading opening in the rear door 24. The body 16 is turned about its trunnions 18 by a ram 22 which also serves, when a bolt described in Specification 679,362, [Group XXXII], is released, to tip the body 16 and the sub-frame 12 together about the pivot 14 to discharge the load. During this action the hood 46 and rear door 24 are automatically opened by cables 72, 66 passing over cams 74, 68 and connected by springs 70, 44 to anchorages on the body.
Patent GB-274248-A (GB)
Abstract: 274,248. Bennett, J. F., and Hadfield, J. June 4, 1926. Compositions containing bituminous materials, oils and sulphur.-Plastic material suitable for surfacing roads &c. is obtained by heating 32 parts of a mixture containing equal amounts of an organic vulcanizable oil, e.g. castor oil and bitumen with 13-64 parts of sulphur until evolution of gas takes place. The mixture may contain tar, resins, filling and colouring materials, and is applied hot by spreading and rolling or dissolved in creosote and applied by spraying. Specification 216,602 is referred to.
Patent GB-189608-A (GB)
Title: Improvements in horseshoes
IPC: A01L5/00
Filed: 1921-10-17
Abstract: 189,608. Newall, A., Roberts, G., and Wells, A. Oct. 17, 1921. Fixing; non-metazlic and composite shoes.-A horseshoe comprises a rubber composition wearing surface 1 of the usual open shape, and a rubber composition clip portion 2 formed integral with and adapted to retain the shoe in position solely by its clip action. For large shoes a rubber strip 4 may connect the heels. A steel spring 5 may be embedded in the wearing portion, Fig. 6, and reinforcing strips of canvas 7 may be provided in the clip 2, Fig. 5. The shoe is made of rubber and carborundum, to which may be added gutta percha and/or steel filings.
Patent GB-1081270-A (GB)
Title: Dithiol-phosphoric acid esters
Inventor: MANNES KARL
IPC: A01N57/12
Filed: 1966-06-20
Abstract: Novel compounds of the general formula (RS)2P(O)OC2H5 where R is a n-propyl or isopropyl radical are prepared by reacting C2H5O-P(O)(Hal)2, where Hal is a halogen atom, preferably Cl or Br, with n- or isopropylmercaptan in the presence of an acid-binding agent, or with the corresponding alkali metal or ammonium mercaptide. The reaction is preferably carried out in the presence of solvents or diluents, e.g. optionally chlorinated hydrocarbons, ethers, ketones or nitriles, at a temperature between -20 DEG  C. and the boiling point of the reaction mixture. Atmospheric pressure is usually employed, but increased pressure may be used.  The O-ethylphosphoric acid ester dihalide starting materials may be prepared by reacting phosphorus oxyhalides with ethanol, preferably without the use of an acid-acceptor.  The compounds have nematocidal activity.ALSO:Nematocidal compositions contain a compound of the formula (RS)2P(O)OC2H5 where R is n-propyl or isopropyl ralical, in admixture with a solid or liquid diluent or carrier. They may be formulated as solutions, emulsifiable concentrates, emulsions, suspensions, spray powders, pastes, soluble powders, dusts and granules.  The active compounds or formulations containing them may be used to combat nematodes by applying them to a nematode habitat, e.g. soil, by e.g. pouring, spraying, scattering, vapourising, or soil injection.
Patent GB-1517272-A (GB)
Title: Liquid treatment apparatus
IPC: B01D15/00
Filed: 1975-06-18
Abstract: 1517272 Liquid treatment apparatus WHATMAN REEVE ANGEL Ltd 20 June 1974 [20 June 1974] 27486/74 Addition to 1351712 Headings B1D and B1J A unitary disposable liquid treatment apparatus comprises a liquid treatment element, a moulded plastics tubular holder 14, having a flow passage therethrough, a support member, the support member extending across the inside of the holder to support the element in its operative position across the flow passage of the holder and sealing means to lock the element in said positions. The element may be a treated paper or an adsorbent material in the form of a paper disc or a tablet of powder and may perform ion exchange. It may be phosphorylated cellulose to remove ferric ions or it may be treated (e.g. with silicones or cetyl pyridinium bromide) to be inert to particular materials.