baber/WOPTO huggingface dataset:
Patent GB-468544-A (GB)
Title: Improvements in shock-absorbing devices for cycle and like handle-bars
IPC: B62K21/14
Filed: 1936-08-27
Abstract: 468,544. Handle-bars. HOUDAILLE, M., and LECLER, C. Aug. 27, 1936, No. 23576. Convention date, Oct. 28, 1935. [Class 136 (iii)] In shock-absorbing devices for cycle &c. handle-bars, of the type comprising one or more rubber bushes interposed between the handle-bar and a fitting securing it to the stem, the bush is formed of a rubber band spirally wound on the handle-bar and held in position by an external socket, by means of which the handle-bar is held in position. In the form shown, the handle-bar 1 is rotatably mounted under the resilient control of a spirally-wound rubber bush or sleeve 2 surrounded by a slit ring 4, which in turn is mounted in a socket 3 adapted to be tightened by a bolt and nut 6, 7, or by a milled adjusting-screw &c. The socket. 3 may be rigid with a bracket 8 secured to the stem 9 ; or the handle-bar may be carried at the outer end of a pivoted rod or bracket provided at one or both ends with the spirally-wound resilient articulation. The resilient suspension may be rendered inoperative by locking- devices, one form of which comprises a nut screwed on the handle-bar 1 and provided with an inner conical part engaging in the correspondingly-shaped end of the socket 3, friction means being provided between the conical parts to exercise a damping action variable up to a complete looking of the parts ; or friction washers may be interposed between a flange on the socket and an adjusting-nut fitted with a lock-nut. In a further form of locking-device, a slidable bolt fitted with a spring-pressed detent is adapted to engage apertures in an end wall of the socket. The Specification as open to inspection under Sect. 91 comprises also constructions in which the outer parts of the handle-bar are resiliently connected to the central part by cylindrical rubber bushes or blocks, or in which the handle-bar itself is formed of a resilient steel wire or strip encased in a rubber sheath. This subject-matter does not appear in the Specification as accepted.
Patent GB-252954-A (GB)
Title: Improvements in and relating to concrete building element
IPC: E04G15/06
Filed: 1925-09-22
Abstract: 252,954. Lake, S. Sept. 22, 1925. Moulds; strickles.-A hand tool 16, Fig. 8, is used as a strickle in surfacing the inner faces of hollow built-up concrete slabs. Projecting pegs 17 on the tool run in recesses in wooden battens in the slab. To cast the upper side of the slab after completing the lower side, hollow cores 33, Fig. 9, are supported on hinged let-down cam members 30, or on packing strips sliding in slots in the members 1. The cores comprise base members 32, Fig. 12, having stamped members 33 attached thereto so as to leave intervening depressions 34 which form ribs on the lower side of the concrete facing. In a modified core two sets of depressions are provided with cross one another at right-angles. Fig. 17 shows a modified core made of dished sheet metal plates 40 seamed on to sheet-metal base plates 39 having metal ducts 43 welded thereonto for conveying steam to the hollow interiors through the nozzles 44.
Patent GB-1304988-A (GB)
IPC: H04B3/23
Filed: 1971-04-19
Abstract: 1304988 Echo compensation SIEMENS AG 19 April 1971 [12 March 1970] 23679/71 Heading H4R In an arrangement for reducing echoes in a transmission path by subtraction of an echo synthesized by a transversal filter, a number of delay elements are provided connectible in series with the transversal filter to compensate for the basic delay of the transmission path. As described the echo zt on an outgoing line SA is cancelled by an echo derived by an adaptive transversal filter from the signal x(t) on the incoming line. As soon as a connection is established a control circuit 1 transmits a test signal over the echo path. Simultaneously with the test pulse transmission a stepping circuit effects the closure of the switches O to K on the taps of a delay circuit VL. The stepping circuit is stopped when the test pulse is detected above a preset threshold on the outgoing line at which time the delay connected in series with the transversal equalizer by the operated one of switches O to K is equal to the delay in the echo path. The transversal filter is then set up in known manner, e.g. by a correlation process.
Patent GB-945853-A (GB)
Title: Process for the production of linear polyesters
IPC: C08G63/83
Filed: 1962-06-20
Abstract: Polyesters are made by reacting dicarboxylic anhydrides with alkylene oxides containing 2-4 carbon atoms in the presence of a catalyst which is a zinc compound, e.g. the oxide, carbonate, chloride, acetate or maleate or a complex of formula [Zn(NH3)6]Cl2.  A small amount of water is advantageously added to the reaction mixture. Specified anhydrides are succinic, adipic, glutaric, maleic, tetrahydrophthalic and phthalic anhydrides.  In an example, phthalic anhydride, maleic anhydride and propylene oxide are reacted.
Patent GB-1152781-A (GB)
Title: Improvements in or relating to Pelletizers for Synthetic Plastics Material
IPC: B29B9/06
Filed: 1966-05-26
Abstract: 1,152,781. Extrusion pelletizers. BLACK CLAWSON CO. 26 May, 1966 [1 June, 1965], No. 23726/66. Heading B5A. The die plate 35 of an extrusion pelletizer is made up of three annular parts 38, 40, 42 welded together, the intermediate one 40 having extrusion passages 45 between radial rows of which extend pairs of ducts 105 which carry heating fluid, e.g. oil or steam. Outer part 42 has fluid inlets 107 and outlets 118 and ducts 105 are linked by slots 110, 115 and 116 in part 40, see also Figs. 5-7 (not reproduced), sealed by the radially outer surface of part 38 and the radially inner surface of part 42. Each extrusion passage 45 is provided with a wear-resistant nozzle 50, e.g. of tungsten carbide, at the working face of the die plate and the space between the nozzles is filled with heat insulation 55, e.g. a silicon/glass fibre composition. Material extruded through passages 45 is cut by blades 82 of a rotary cutter (80), Fig. 1 (not shown), and to ensure that wear of each blade 82 is even, wear stubs 100 are inserted in part 40 and are made of the same material as nozzles 50. The die plate is fed via passageways (14, 16 and 30), Fig. 1 (not shown), and cutter (80) is driven via a coupling (74) and is housed within a water chamber (60) having an inlet (90), distribution channels (92) formed in cutter (80), and an outlet (94) for the water entrained pellets.
Patent GB-241178-A (GB)
Title: Inner tubes for pneumatic tyres
IPC: B60C5/04
Filed: 1925-09-23
Abstract: 241,178. Tosoni, D. Oct. 8, 1924, [Convention date]. Air tubes.-To prevent bursts, a reinforcement 2 of hard rubber, fabric, metal, or other material is fitted to the tread portion of an air-tube a tyreclamping bead 3 of similar material being fitted to the opposite side of the tube. The bead 3 extends above the height of the rim flanges, and engages the edges of the cover in the deflated condition of t.he tube.
Patent GB-316682-A (GB)
Title: Controlling mechanisms adapted for use in regulating the temperature of an oven
IPC: G05D23/275
Filed: 1929-08-02
Abstract: 316,682. Fabrique Nationale d'Armes de Guerre. Aug. 2, 1928, [Convention date]. Thermostats.-The temperature of an oven 2 is regulated by means of a thermal switch comprising a contact arm 7 which is moved by a thermal element 2a between two contacts 7<g>, 7<k> which are in the form of screws driven independently of each other by clockwork so as to vary the temperature at which the oven is maintained. In the arrangement shown in Fig. 1, engagement of the contacts 7, 7k closes a circuit to the electromagnet 6 which attracts its armature 5a and thereby not only breaks at 5k the circuit 5<f> to the actuating-electromagnets 91 of valves 9 controlling the supply of air and gas to the oven, but closes at 6<k> a retaining circuit which keeps the magnet energized until the arm 7 moves into engagement with another clookwork-controlled contact 7<g> and short-circuits the electromagnet. The thermal element 2a may comprise (Fig. 3, not shown) a rod of silica enclosed in a tube of steel consisting of iron, silicon, manganese, carbon, copper, nickel and chromium in specified proportions. When heated the tube expands more than the rod, and the latter or an extension of it moves downwards. In Fig. 1, the rod bears on an intermediate lever which bears on the contact arm 7. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a simpler arrangement, Fig. 1 (Cancelled) in which the rod 2 bears directly on the arm 7 which engages only one clockwork-driven stop 7<k> thereby shorb-circuiting an electromagnet 6 whereupon a spring pulls down the core and lifts a rod 5k out of a mercury cup thereby breaking a circuit 61f to the heaters of the oven. This subject-matter does not appear in the Specification as accepted..
Patent GB-532899-A (GB)
Title: Improvements in or relating to tubular rivets
IPC: F16B19/10
Filed: 1939-08-18
Abstract: 532,899. Rivets. JOHNSON. S. T., and ROE, Sir A. VERDON-. Aug. 18, 1939, No. 23919. [Class 89 (i)] Tubular rivets are tapered externally so that the wall of the rivet is thickened at the tail end. The taper may be uniform as in Fig. 1, or there may be a short cylindrical portion at either or each end, or the taper portion of any of the above modifications may be non uniform as at W, Fig. 9, or stepped as shown internally in Fig. 10. The interior of the rivet may be parallel or may taper so that the bore decreases towards the tail end and the internal tapers are subject to all the modifications described for the external tapers and the internal and external tapers may be variously combined.
Patent GB-618894-A (GB)
Title: Improvements in or relating to tri-heterocyclo-substituted methanes
IPC: C07D277/64
Filed: 1946-08-13
Abstract: Tri-heterocyclic substituted methanes are prepared by reacting together an alkali metal salt of a heterocyclic nitrogen base containing a reactive methyl group in a - or g -position to the heterocyclic N atom with a heterocyclic nitrogen base containing a halogen atom in a  or g -position to the heterocyclic N atom.  A cooled solvent such as liquid ammonia may be used, and the reaction may be effected in presence of excess alkali metal.  The alkali-metal may be added to the liquid ammonia to form the amide and the heterocyclic compound containing the reactive methyl group and that containing the halogen atom successively added.  Tri-benzthiazolyl (1)-methane is prepared by adding sodium and a little ferric nitrate (catalyst) to liquid ammonia cooled in alcohol and solid CO2 and successively adding 1-methyl-benzthiazole and 1-chlorobenzthiazole. Benzthiazolyl (1) - di - (benzoxazolyl - 1) - methane, quinolyl (2) - di - (benzthiazolyl - 1) - methane, quinolyl (4) - di - (benzthiazolyl - 1) - methane, thiazolinyl (2) - di - (benzthiazolyl - 1) - methane, and benzthiazolyl (1) - di - (quinolyl - 4) - methane are similarly prepared.
Patent GB-239488-A (GB)
Abstract: 239,488. Marcesche, E. C. Sept. 8, 1924, [Convention date]. Addition to 238,128. Air and steam sprayers.-In an airpressure sprayer as described in the parent Specification the auxiliary current of air between the divergent cone 7 and convergent cone 6 is produced by means of steam jets formed by convergently - directed nozzles 5 mounted on a ring 3 supplied with. steam by means of a pipe 4.
Patent GB-1191891-A (GB)
Title: Imaging Process
IPC: G03G5/04
Filed: 1967-05-24
Abstract: 1,191,891. Electro-photographic and electrographic processes. RANK XEROX Ltd. May 24, 1967 [May 31, 1966], No. 24123/67. Heading G2H. In an electro-photographic or electro-graphic process, an electrostatic image is applied to a plate Fig. 1. comprising in order a support 2 (e.g. of polyethylene terephthalate), a conductive layer 3 (e.g. of Cu, Ag or Al), an electrically insulating layer 4 (e.g. of a polymer) which is soluble in a solvent in which the support and layers 1 and 3 are insoluble, and a disruptable layer of photo-chromic particles or a fracturable layer capable of breaking up to form such particles (e.g. of selenium or phthalocyanine); the plate is then treated with solvent to dissolve the insulating layer 4, particles of layer 1 migrating to and depositing on layer 3 in imagewise configuration and those not migrating being removed by the solvent, and then treating the plate to remove conductive layer 3 in areas not covered by particles to expose the support. Alternatively layer 4 may contain a photo-conductor (e.g. 2: 4: 7-trinitro-g-fluorenone) and layer 1 may be a particulate or fracturable insulating, photoconductive or conductive material (e.g. black iron oxide particles). Depending on the materials used, the particles may migrate to areas where the electrostatic image was present or absent so that negative or positive images may be obtained. The plate may have a further layer between support 2 and layer 3 such that it becomes tacky during solvent treatment so that the image-forming particles adhere. Treatment to remove the conductive layer 3 and to expose the support in non-image areas includes treating a copper layer with iodine vapour Fig. 5 (not shown), with chromic acidsodium dichromate solution, with bromine in CCl 4  or with a solution in toluene or in polyvinyl pyrrolidone solution. In the latter case the image is fixed by the resin coating obtained.
Patent GB-296562-A (GB)
Title: Improvements in or relating to folding seats
IPC: A47C9/10
Filed: 1927-09-14
Abstract: 296,562. Jennens, W. H., Ravenscroft, E. J., and Read, 0. Sept. 14, 1927. Folding s e a t s.- The stick member of a walking-stick seat is prevented from entering too far into the ground by means comprising two plates 8 provided with lugs 9 by which they are pivoted at 7 to the members 2, 5. The plates 8 are of curved cross section so that when not in use, they lie close to and embrace the stick, and when in use their inner ends abut against the sides of the stick.
Patent GB-606273-A (GB)
Title: Production of polymers and copolymers comprising trifluorcethylene
IPC: C08F14/18
Filed: 1945-09-19
Abstract: Trifluoroethylene is polymerized by heating in the presence of a peroxy catalyst.  Copolymers may be formed with vinyl chloride and acetate; ethylene, propylene, isobutylene, styrene; butadiene, chloroprene, fluoroprene, isoprene; vinylidene chloride and fluoride; tetrafluoroethylene, trifluorochloroethylene; acrylic and methacrylic acids and their esters, e.g. methyl methacrylate, anhydrides, amides and nitriles.  Polymerization may be effected in bulk, or in aqueous dispersion or emulsion.  Catalysts specified are hydrogen, diethyl, benzoyl and lauroyl peroxides; tert-butyl hydroperoxide; ammonium, sodium and potassium persulphates.  The products may be combined with or prepared in the presence of plasticisers, stabilizers, fillers, pigments, dyes and natural or synthetic resins, and used in making films and fibres.  Specification 605,446 is referred to.
Patent GB-347988-A (GB)
Title: Improvements in or relating to light-producing apparatus for stroboscopic and like devices
IPC: H05B41/34
Filed: 1930-08-13
Abstract: 347,988. Vapour and lamp systems. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.- (Assignees of Staege, S. A. ; 6624, Beacon Street, Pittsburg, U.S.A.) Aug. 13, 1930, No. 24212. Convention date, Aug. 14, 1929. [Class 38 (iv).] Charging and discharging condensers.-An electric lamp having a critical lighting voltage, such as a neon tube, is shunted by a condenser and supplied from an alternating current source so that it is intermittently illuminated for a period during each half cycle limited by its critical lighting voltage and its shut-off voltage. The invention is particularly applicable to stroboscope illumination. A neon tube 9 shunted by a condenser 14 is supplied through a resistance 13 from a transformer 3 with a variable resistance 7 in its primary circuit. During a half cycle of e.m.f. the condenser voltage builds up to the critical lamp voltage whereupon the condenser discharges through the lamp until the shutoff voltage is reached. The resistance 7 is adjusted to give a maximum applied voltage substantially above the critical lamp voltage. The brilliancy of the lamp and its lighting period may be varied by changing the magnitude of the condenser 14 and resistance 7. The transformer may be omitted.
Patent GB-1308756-A (GB)
Title: Disposable sand cup and support
IPC: G01N25/02
Filed: 1971-04-19
Abstract: 1308756 Temporary - contact appliances ELECTRO-NITE CO 19 April 1971 [9 Feb 1971] 24248/71 Heading H2E [Also in Division H1] An expendable device for determining the composition of a metal melt by temperature measurement of a solidifying sample comprises a cup having a thermocouple mounted in a bore in its base, the underside of the base being provided with a boss which supports the thermocouple wires which are bent at right angles and extend in opposite directions across recesses in the boss to provide contact portions. As shown, a cup 14 of sand or similar material together with a binder is provided with abore 26 in which is inserted a two bore ceramic insulator 28 supporting thermocouple wires, the assembly being secured by refractory cement 32 which also covers the exposed hot junction 30. The lower end of the cup 14 is provided with a generally semicircular boss 24, the thermocouple wires 64, 66 being bent at right angles so that they extend across vertical recesses 34, 36 in the face of the boss within which they are contacted by a pair of pins 60, 62 mounted on a spring loaded carrier 52. The boss 24 is also provided with a tapered slot 44 which engages with a pin 48 on the holder to align the cup. The pins 60, 62 are selected to be of the same material as the thermocouple wires used.
Patent GB-577775-A (GB)
Title: Improvements in or relating to frequency discriminator circuits
IPC: H01J25/12
Filed: 1944-03-25
Abstract: 577,775. frequency modulation. WHITE, E. L. C. March 25, 1944, No. 24249. Divided out of 577,758. [Classes 39 (i) and 40 (v)] [Also in Group XXXV] A frequency discriminator circuit comprises a velocity-modulated electron discharge valve or valves excited by an applied wave and including two output resonators tuned respectively above and below a mean frequency, said resonators feeding detectors which are arranged to give a differential output dependent on deviations of frequency of the applied wave. As shown, the incoming wave from an aerial 17 is applied as input to two resonators 3, 13 each tuned to the mean frequency, and each operating as a " buncher " to the respective velocity-modulated tubes 1, 2. Two other resonators 6, 16 operating as " catchers " in the respective tubes are tuned one above and the other below the mean frequency, and are associated with quarter-wave coaxial lines 20, 30 feeding energy to detectors 21, 31. Output is taken from a balanced load resistance 23. In F.M. receiver, the output is taken to the audio stages and to a reproducer ; or the output may be utilized to reduce frequency variations as in Specification 577,758. The valves 1, 2 may be switched on and off by bias applied to control electrodes 27, 37. A single valve may be used having two " catcher " resonators tuned above and below the mean frequency respectively. Specification 537,518 also is referred to.
Patent GB-760223-A (GB)
Title: Improvements in a method of producing floor coverings and the like
IPC: B27M3/04
Filed: 1952-09-29
Abstract: 760,223. Flexible laminated materials. ALLSOPP, H. S. Sept. 29, 1953 [Sept. 29, 1952], No. 24313/52. Class 140. A laminated material, suitable for use as a floor-covering, consisting of rectangular blocks 2, Fig. 2, of hard-wearing material laid in pairs forming souares and adhered to a flexible backing or base 1 with the blocks of each pair extending at right angles to those of adjoining pairs, is made by feeding a length of the flexible backing over a support 4, Fig. 4, applying an adhesive by a device 8 to the backing, assembling the blocks 2 on the adhesive-coated backing, applying pressure to the assembly, e.g. by a pair of spring-pressed rollers 10, 11, keeping the product rigid until dry, e.g. under a weight 12, squaring the edges by means of a straight line edger, and rendering it uniform in thickness with the aid of a " thicknesser " or belt sander. The hard-wearing material may be wood or a plastic material. The adhesive may be applied in two stages as in the case of urea-formaldehyde resin where a second coating of a setting agent may be applied. The backing may be similar to the material used as underfelt for carpets, and may be water- and rot-proof.
Patent GB-296305-A (GB)
Title: Multi-stage air compressor
IPC: F04B25/02
Filed: 1928-08-24
Abstract: 296,305. Hoerbiger & Co. Aug. 27, 1927, [Convention date]. Compound piston pumps.-The receivers associated with successive stages of a compressor are connected with each other by a differential piston valve, the faces of which are subject to the stage pressure and their areas are inversely as the ratio required between the stage pressures. The tank 4 which acts also as an intercooler, receives air from the first stage outlet valve 3 and delivers it to the second stage inlet valve 7. The tank 10 receives air from the second stages outlet valve 8, and delivers to a final receiver 11. Communication between the tanks 4, 10 takes place under control of a differential piston valve 14 having its faces in the same ratio as those of the compressor piston 1 and acted upon also by a spring 15. The inlet valve 2 is provided with a regulator 16 controlled through a valve 17 communicating with the high pressure chamber 10.
Patent GB-1186088-A (GB)
Title: Method and Apparatus of Processing Non-Ferrous Ores and Concentrates.
Inventor: KOSTIN VLADIMIR NIKOLAEVICH
IPC: C22B4/00
Filed: 1967-05-25
Abstract: 1,186,088. Extracting metals. MINISTERSTVO TSVETNOI METALLURGII. May 25, 1967, No.24394/67. Heading C7D. Ores and concentrates containing non-ferrous and "rare" metals (i. e. metals which sublime at up to 1600‹C. ) are oxidized and melted by feeding them, together with an oxygen-containing gas, tangentially (via injector 3) into a cyclone chamber 2 in which the gas flow is cyclonic, the melt formed is separated from the gases produced in a separating zone 4, the melt is passed to an electro-thermic furnace 6 where metal oxides are reduced to metallic products, and the said products are removed from the furnace separately from slag. The melt is initially collected or cooled sill 13 and then flows by gravity into furnace 6, the latter being separated from zone 4 by cooled partition wall 5 the lower portion of which is immersed in slag. In a modification Fig. 4 (not shown) the separating zone and furnace are connected by a weir. "Rare" metals such as Pb, Cd, Se, Re, Hg, Bi, Ge, T1, Te are recovered from the gases evolved during the melting operation. Zn is condensed in the condenser associated with the furnace. Reference is also made to the extraction of Cu and Ni.
Patent GB-1491670-A (GB)
Title: Composite print wheel
IPC: B41J1/30
Filed: 1975-01-21
Abstract: 1491670 Selective printing XEROX CORP 21 Jan 1975 [25 Sept 1974] 24453/77 Divided out of 1491257 Heading B6F The subject matter of this Specification is identical to that of Specifications 1,490,633 and 1,491,257, the claims being directed to the attachment of the print wheel's hub to the insert member.
Patent GB-626839-A (GB)
Title: Improvements relating to mechanically-operated shavers
IPC: B26B19/46
Filed: 1947-09-05
Abstract: 626,839. Dry shavers. WARR, R. H. Sept. 5, 1947, No. 24537. [Class 131] In a mechanically operated dry shaver one or more electric lamps 2 are arranged in a longitudinally extending hood 3 provided centrally on one of the flat faces of the casing 1 of the shaver and having a window 7. The lamps may be supplied directly from the mains or battery or through a resistance or transformer and may be of the screw-in, tubular or gas-discharge type. Part of the hood may be of transparent plastic material.