baber/WOPTO huggingface dataset:
Patent GB-673747-A (GB)
Title: Method of and apparatus for manufacturing endless flexible band tracks for vehicles
IPC: B29D30/02
Filed: 1949-03-11
Abstract: 673,747. Moulding endless band tracks for vehicles. WINGFOOT CORPORATION. March 11, 1949 [Sept. 23, 1948], No. 6707/49. Class 87(ii). Apparatus for manufacturing flexible endless band tracks for vehicles comprises a chuck 5, Fig. 1, having arms 6 radially extendable or retractable by means of a wheel 7, a split ring 8, an inflatable airbag or form 11, and a vulcanising mould 24. The form 11, Figs. 2, 3, which may be of rubber or synthetic rubber, fabric &c., may be expanded when inflated and is produced from a strip of tough rubber applied to the outside of a cut and spliced length of tubing. The form is moulded and vulcanised so that it has a flat part 12, ridges 13 and grooves 14 for moulding corresponding grooves and ribs in the band track, arcuate flexible side walls 15, and a substantial base 16 for mounting on the ring 8. In the process of moulding, the form is mounted on the chuck 5 and partially inflated through the valve 25. Fabric 17, Fig. 2, in sheet or strip is then placed over the form so as to overhang the sides, and is stitched or rolled into the grooves and over the ridges. The fabric may, however, be omitted. Strips of unvulcanised rubber 18 are next rolled into the grooves and a sheet of rubber 19 is placed over the strips and stitched down. A plurality of plies of rubberised wire fabric 20 are then positioned over the sheet 19 and a further sheet of rubber 21 is placed overall. The loose sides of the fabric 17 are then tucked over and a sheet of rubber 22 is finally stitched down to finish the fabrication. The plies 20 may be alternately applied so that the strands of each ply cross those of the preceding layer as in Fig. 1, thus allowing a slight amount of stretch of the band when the form 11 is inflated but negligible stretch after vulcanisation. After fabrication the form and band 23 are removed from the chuck 5 and the assembly placed in a mould 24, the form is fully inflated and heat and pressure is applied to the mould in known way to vulcanise the band. The mould halves 26, 27 form a cavity 28 provided with ridges 30 and depressions 31 to shape the tread portions of the band, and the wheel contacting ribs 32 and grooves 33 are formed by the grooves 14 and ridges 13 of the form 11. The portion 29 of the mould is of greater diameter than the band so that the band may expand and be under tension when the form is inflated. In a modification, Fig. 4 (not shown), the operations of building up the band are reversed, the fabric over the ribs being applied in strips and the tread surface of the band being moulded by the form whilst the wheel contacting surface is shaped by the mould. The band is reversed when removed from the form.
Patent GB-307495-A (GB)
Title: Improvements in subaqueous sound transmitters
IPC: G01S1/72
Filed: 1929-03-01
Abstract: 307,495. Electroacustic Ges. March 10, 1928, [Convention date]. Subaqueous sound signals.-In electromagnetic subaaqueous s o u n d - transmitters, separate windings 6, 7, Fig. 1, are provided for the polarizing and alternating currents, and connections to the sources of supply 8, 9 are taken over a Morse key 10, the load on the sources being kept constant by cutting in resistances and inductances 11, 12, 13. The casing 1 is formed with diaphragms 2, 3. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the modification shown in Fig. 3 (Cancelled), in which a common winding 6 is used for both currents and, in addition, a condenser 14 is inserted in the loading circuit of the alternating current supply 9. This subject-matter does not appear in the Specification as accepted.
Patent GB-712546-A (GB)
Title: Printing wheels having porous type members
IPC: B41K3/54
Filed: 1952-03-17
Abstract: 712,546. Typewriters &c. NATIONAL CASH REGISTER CO. March 17, 1952 [March 22, 1951], No. 6802/52. Class 100 (4) An inking arrangement for a type wheel or wheels comprises an ink containing shaft 25 for feeding ink to capillary channels of the type wheels formed of carbon plates 31, 32 and with a porous type-carrying rim 33, the carbon plates forming an ink-proof seal with the metal shaft and with metal members, e.g. gears 36 and collar 40, located on each side of the type wheels. One end of the shaft 25 is mounted on a stud 22 on a frame plate 21 and the other end is threaded to receive an ink-font 26 mounted through a hole in a plate 20. Radial holes 32a allow the ink to pass to the capillary channels of the type wheels. These channels may be formed as shown in Fig. 2, by a film of metal foil 47 containing cut-out channels 34 and is mounted between the plates 31, 32 by two thin layers of thermo-setting bonding material 46, 48 having similar channels 34 formed therein. The plates 31, 32 are formed from amorphous coke, or lamp black, and graphite powders pressed into shape, sintered into a rigid mass, and then impregnated with wax or resin. On one side of the wheeel is bonded a gear wheel 36 and the other side wears to form a seal with the adjacent gear wheel or end collar 40. The collar 40 urged by a spring 38 effects a pressure contact between the plates 31, 32, a carbon end collar 37, and the gears 36. The spring 38 is covered by an oil-resistant rubber sleeve 41 or a thin metal bellows welded to the collar 40 and ink-font 26. The metal bellows may also serve as the spring 38. In a modification, the capillary channels are formed in one of the carbon plates and attached by adhesive to the other plate. The channels may be radial, spiral or tortuous in shape.
Patent GB-751640-A (GB)
Title: Improvements in or relating to valves for controlling the flow of fluids
Inventor: CREAMER DAVID GEORGE
IPC: G05D7/06
Filed: 1954-03-09
Abstract: 751,640. Valves controlled by auxiliary valves. FLIGHT REFUELLING, Ltd. March 9, 1954, No. 6862/54. Addition to 705,881. Class 135. In the valve described in the parent Specification, the chamber which was connected by a passage to the exterior of the valve controlled conduit is now isolated from the atmosphere and connected by a passage to the outlet side of the valve so that back pressure on the main valve does not prevent it from opening. As shown, a bellows 22, the movable head 23 of which is connected by a stem 20 to the main valve 21, divides a casing 42, supported on a ring 17 in spaced relation to the conduit section 15 and to the valve seat member 10, into two chambers 45, 46. The chamber 45 as in the parent Specification is connected through a restricted passage 44 with the inlet side of the main valve and through a passage 32 controlled by a solenoid-actuated pilot valve 33 with the outlet side of the main valve. The chamber 46 is connected by a passage 47 extending through one of the legs 16 joining the ring 17 to the seat member 10, to the outlet side of the main valve. The passage 47 is connected to a branch passage 48 which opens into two sockets containing sealed plugs 51. The leads 55 of the solenoid 38 pass through the passages 47, 48 and the plugs 51 to a socket member 57, the rear end of which is enclosed by a cover 59.
Patent GB-251063-A (GB)
Title: Improvements relating to extra air valves for internal combustion engines
IPC: F02D9/00
Filed: 1925-03-13
Abstract: 251,063. Burch, R. E., and Walker, A. E. March 13, 1925. Addition to 212,178. Induction pipes, fittings for.-The extra-air valve described in the parent Specification, which is controlled from the ignition control rod, is modified in that the valve and ignition control rod are positively interconnected. The air admission valve b is provided with a bifurcated cam lever f engaged by an adjustable pin e on an arm d which is adjustably secured to the ignition control rod c. The arms k<1>, k<2> of the lever f are so shaped that, as the arm d is moved to advance the spark, in which movement the pin e is moved from the position z to the position w, the air valve b (i) is held closed until the pin reaches the position y, (2) is gradually opened fully as the pin is moved from position y to position x and (3) is held fully open as the pin is moved to position w.
Patent GB-834371-A (GB)
Title: High flux homogeneous nuclear process and reactor with circulating fissile material
IPC: G21C1/24
Filed: 1958-03-04
Abstract: 834,371. Nuclear reactors. ESSO RESEARCH & ENGINEERING CO. March 4, 1958 [March 13, 1957], No. 6887/58. Class 39(4). In a nuclear reactor a fluid composition of fissile material is passed as a flowing stream through a flow path and a reaction zone, the iron-sectional area of at least an appreciable portion of the flow path being at least equal to the cross-sectional area of the reaction zone so that initial conditions would normally obtain in the flow path but are prevented by neutron absorbing material arranged in the vicinity of the flow path, the absorbing material having a cross-section greater than 10 barns for neutrons of energy between 0À025 and 2À5 e.v. The fissile material may be in solid, liquid or gaseous form and may be mixed with a moderator material of solid, liquid or gaseous form to form a substantially homogeneous mixture. In the arrangement shown in Fig. 1, the fuel is an aqueous solution of uranium phosphate, the uranium being 90% U235, and passes from an inlet 1 through a reaction zone 2 to an outlet 5. The pipes 1 and 5 may be surrounded with neutron absorbing material 3, 6 such as cadmium and rods 7 of neutron absorbing material may be placed inside the pipes. The reaction chamber 2 is surrounded by reflecting material 4, for example of graphite, which may be cooled, and control rods 16 may be inserted into the core. After passing through the core the fuel may pass through a heat exchanger 11 where it gives up useful heat. Branch lines may be provided so that fuel solution can be withdrawn for separation of impurities or removal of fission products. In alternative arrangements, Figs. 2-5 (not shown), the reflector 4 is replaced by a chamber defining a petroleum processing zone through which petroleum fractions are passed to be subjected to radiation and act as a reflector whilst in the processing zone.
Patent GB-229873-A (GB)
Title: Improvements in the means for fastening the straps of wristlet watches, bracelets orthe like
IPC: A44B11/22
Filed: 1924-03-18
Abstract: 229,873. Jarvis & Co., S. V., and Woolley, B. A. March 18, 1924. Buckles.-Relates to buckles of the kind having a base-plate 1 provided with a pin 2, for engagement in one of a series of perforations 11 formed in the strap to be fastened and with a hinged cover 3 closing on the base-plate with a snap action. According to the invention, the base-plate is provided with two loops or rings 7, 8, the latter serving as a means of attachment for the strap of a bracelet 9 or the like, and the former as a guide for the free end 10 of the strap.
Patent GB-115427-A (GB)
Title: Improved Process and Apparatus for the Manufacturer of Moulded or Cast Articles of Cement and Iron Filaments.
Inventor: TABOURIN PIERRE JULES
IPC: E01B3/44
Filed: 1918-04-24
Abstract: 115,427. Tabourin, P. J. Oct. 31, 1913, [Convention date]. Feeding processes.-Relates to the moulding or casting of sleepers and other articles composed of cement and iron filaments (French paille de fer ") and consists in agitating the mass of filaments, previously introduced into the mould, whilst the cement is introduced. Apparatus for carrying out the invention comprises a perforated tray 2 vertically movable upon hinged rods 5 by chains 7 and provided with spikes 4 adapted to penetrate the filaments in the mould 1, the tray being vibrated by an eccentric 9. Cement is supplied to the tray from a receptacle 11 and is distributed uniformly therein by a grooved inclined plane 12. Specification 11637/09, [Class 87 (i), Bricks &c.], is referred to.
Patent GB-1076208-A (GB)
Title: Mehtod for producing a compacted and sintered vanadium carbide addition alloy
IPC: C22B34/22
Filed: 1966-02-17
Abstract: Sintered vanadium carbide briquettes are prepared by heating fused and crushed V2O5 to 565-620 DEG  C. in a hydrocarbon atmosphere to form V2O4, which is then heated to at least 1040 DEG  C. in a hydrocarbon atmosphere to form VCxOy (where x is 0.4-0.6, y is 0.4-0.8), which is cooled to ambient temperature in a non-oxidizing atmosphere, mixed with sufficient C to effect a stoichiometric balance of C to combined O and to give an 8-15% excess of C, briquetting the mixture, heating the briquettes to 1370-1480 DEG  C. while withdrawing the evolved gases until gas evolution stops, and cooling the briquettes in a non-oxidizing atmosphere.  The hydrocarbon atmosphere may comprise natural gas, CH4, C2H6, C3H8, C4H10, or mixtures thereof.  Specified carbons are graphite and lampblack.  The first heating stage (565-620 DEG  C.) and second (1040 DEG  C.) may be conducted for 60-90 and 100-180 minutes respectively, and finely divided C may be added prior to either stage.  The said first and second heating stages may be carried out in externally-fired rotating retort furnaces wherein the material is progressively heated as it passes through the furnaces; two such furnaces preferably being placed in tandem such that the material from the first stage furnace discharges directly into the second. The final heating stage (1370-1480 DEG  C.) may be conducted in a vacuum furnace until the pressure is less than 0.05 mm. Hg.
Patent GB-307496-A (GB)
Title: Improvements in or relating to internal combustion engine plants
IPC: F02B37/007
Filed: 1929-03-04
Abstract: 307,496. Buchi, A. March 10, 1928, [Convention date]. Pumps, centrifugal. - A double-acting engine is supplied with air by two sets of turbo-compressors, one set corresponding to the upper or outer sides of the cylinders and the other set to the inner. As shown the exhaust ports on the sides 8 - - 13 are divided into two sets and are connected to two pipes 24, 25 and' the lower exhaust ports to pipes 27, 28. These deliver to separate chambers in the exhaust turbines 20, 21, which drive the air compressors 22, 23 connected to the upper and lower inlet ports of the cylinders. A valved cross-connection 33 enables the delivery pressures to be balanced or the two compressors may supply to one side only. In a modification cross connections are provided between the pipes 24, 27 and 25, 28; by suitable valve arrangements one or other turbine may be driven by exhaust from either side of the cylinders. In another arrangement air for the inner compressor set may be drawn from an outer-stage in the other compressor or may be supplied by a further compressor. Specification 262,106 is referred to.
Patent GB-1370981-A (GB)
Title: Digital electric calculator
IPC: G06F7/491
Filed: 1972-02-15
Abstract: 1370981 Calculator SUWA SEIKOSHA KK 15 Feb 1972 [17 Feb 1971] 6984/72 Heading G4A A calculator is adapted to perform calculations on quantities of time expressed in hours and minutes or hours, minutes and seconds. The calculator is a mixed radix device consisting of two serial adders 1 and 2 (the Specification states that parallel devices could be used), a shift register 9, delays 8, 18, and 33, and a gating network connected to the shift register to determine when it is necessary to add filler digits to the results from adder 1 in adder 2. Inputs 37 and 38 receive serial four bit B.C.D. signals indicative of digits to be added or subtracted and input 39 receives a series of digit timing pulses T 1 -T 7  corresponding to successive digits of a time value in hours, minutes and seconds. Each digit pulse is sub-divided by bit timing pulses t 1 -t 4  applied to inputs 40-43. The. gating network 10-16 produces a signal at the output of gate 14 indicating whether the result of the addition in adder 1 is greater than or equal to 0110 and 1010 respectively depending on whether gate 16 or gate 15 is enabled by a signal on line 44 indicating base 6 or 10 operation. The calculator switches between base 6 and base 10 operation in accordance with the digit timing pulses, e.g. carries between the units and tens seconds digits are to base 10 whereas carries between the tens seconds and unit minutes digits are to base 6, the appropriate filler digits being supplied to adder 2 by gates 25, 26 which gate appropriate ones. of the bit timing pulses to the adder to form the filler digits. Multiplication and division are said to be performed by repeated addition and subtraction respectively so that, e.g., the charge for a fixed period of time at a fixed charge per unit time may be calculated. Specifications 1,370,982, 1,370,983, 1,370,984 and 1,370,985 are referred to.
Patent GB-1171834-A (GB)
Title: Organopolysiloxane Compositions which Cure at Room Temperature to give Elastomers.
IPC: C08L83/04
Filed: 1967-02-14
Abstract: 1,171,834. Silicone coatings. WACKERCHEMIE G.m.b.H. 14 Feb., 1967 [23 Feb., 1966], No. 7038/67. Heading B2E. [Also in Division C3] Textiles, paper, zinc sheet, anodised aluminium, phenol-formaldehyde/paper laminates, may be coated with a composition which cures in moist air to an elastomer and comprises (1) the product of reaction of a hydroxy-terminated polysiloxane with a diacyloxy silane and (2) a silicon compound containing at least three acyloxy groups (see Division C3).
Patent GB-398230-A (GB)
Title: Improvements in or relating to photographic cameras with telemeters
IPC: G03B13/20
Filed: 1932-03-09
Abstract: 398,230. Cameras. ZEISS IKON AKT.- GES., 72, Schandauer Strasse, Dresden, Germany. March 9, 1932, No. 7124. Addition to 378,347. [Class 98 (i).] A telemeter as described in the parent Specification, having a fixed mirror 4, Fig. 1, and an adjustable mirror 3 controlled by an arm 5 the end of which abuts against a cam-faced sleeve 8 on the focusing lens mount 9, is built into the camera casing in a compartment 2 above the exposure chamber 1. The arm 5 projects through an opening 31 in the partition 32. In the construction illustrated the upper roller of a blind shutter 22, Fig. 3, is situated immediately behind the compartment 2. Kinematograph film stock is used, the supply and take-up spools being mounted in side housings within the camera. The film 24 passes from the supply spool over the focal plane and over a sprocket roller adjacent the focal plane which is geared with the take-up spool. At infinity focus the lens sleeve is engaged by a catch on a crank lever 19, which is released by an external button 17. The lens is focused by a projecting wheel 10 mounted on the front panel of the camera and geared with a gear wheel 12 on the lens mount.
Patent GB-1102655-A (GB)
Title: Thin film capacitors
Inventor: DUCKWORTH ROGER GEORGE
IPC: H01G4/10
Filed: 1964-11-19
Abstract: 1,102,655. Thin film capacitors. ULTRA ELECTRONICS Ltd. 18 Feb., 1966 [19 Nov., 1964], No. 7134/66. Divided out of 1,088,647. Heading HIM. A thin film tantalum capacitor of low series resistance has a layer of highly conducting metal such as aluminium between the tantalum electrode and the substrate. The arrangement shown, forming part of an R.C. circuit, is manufactured by sputtering aluminium or an alloy of aluminium on to a substrate, etching a channel to form a picture frame around the desired electrode area, sputtering on a layer of tantalum, masking the tantalum within the picture frame, etching away the unwanted aluminium plus the tantalum where it covers aluminium other than in the masked area using an aluminium etchant, removing the mask, anodizing the tantalum electrode, and applying an aluminium counterelectrode and connections.
Patent GB-136982-A (GB)
Title: An Improved Gauge for Bevels, Mitres and the like, Chiefly Designed for use in the Construction of Roofs.
Inventor: NICHOLSON JOHN SHAW MCLUCKIE
IPC: G06G1/00
Filed: 1919-03-22
Abstract: 136,982. Nicholson, J. S. M. March 22, 1919. Bevels and mitres.- A gauge particularly adapted for determining the angles at which to cut members of a roof of given pitch, comprises a semicircular base-plate A having a straight edge W along its diameter and carrying a square B, C, pivoting about its centre R and having pointers D - - H, J, L - - P co-operating with two sets of concentric scales on the plate. The arms B, C are connected by setscrews U, V to two similarly - arranged arms on the back of the plate; these arms, with the edge W, being used when setting out the ascertained cuts.
Patent GB-943001-A (GB)
Title: Improvements in or relating to pulse generating circuits employing a thyratron valve and electromagnetic relays
IPC: H03K3/55
Filed: 1960-03-02
Abstract: 943,001. Valve relay circuits. ZAVODY PRUMYSLOVE AUTOMATISACENARODNI PODNIK. March 2, 1960 [March 2, 1959], No. 7327/60. Heading H3P. In a pulse generating circuit energized from an A.C. source of supply and comprising a cold cathode gas-filled valve T and electromagnetic relays A, B, Fig. 2, the trigger electrode of the valve is connected via a timeconstant circuit comprising capacitor C and resistors R 1 , R 2  to a point of steady D.C. potential developed by a rectifier across a capacitor Ce from the A.C. source. so that after a period determined by the time constant R 1  C the valve fires to energize relay B, thus changing contacts b 1  over and energizing relay A through a connection which is effective for a limited period only and as shown comprises a capacitor Cz. Energization of relay A switches over contacts a 2 , a 3 , thus reversing the connection of capacitor C to the trigger electrode of the valve T which is consequently extinguished, releasing relay B so that contact b 1  is restored to its original position and the energization of relay A is maintained through the D.C. path constituted by contacts a 1 , b 1 . After a further period determined by the timeconstant R 2  C, valve T again conducts and relay B is energized to break the holding circuit for relay A, so that after a short interval determined by the magnitude of capacitor Cz, relay A drops out, contacts a 2 , a 3  return to their original positions thus extinguishing valve T and releasing relay B so that the circuit is restored to its initial state and another cycle of oscillation can take place. In a modication, Fig. 3 (not shown), the capacitor C 2  is replaced by the contacts of a relay controlled by further contacts of the relay B. This relay is either slow-to-operate or slow-to-release and fulfils the delay function otherwise provided by capacitor Cz. Fig. 1 shows a circuit not forming part of the invention. In the state shown the trigger electrode of valve T 2  is earthed through resistor Rv so that T 2  cannot conduct. However, after an interval determined by the timeconstant R 1 , C 1 , valve T 1  conducts to energize relay A which is subsequently maintained energized through self-holding contact a 1 , valve T 1  being extinguished. Contact a 2  is changed over to remove the short-circuit from the trigger electrode of valve T 2  which therefore, after an interval determined by time constant R 2 , C 2 , conducts to energize relay B and break the connection from the D.C. source for the anodes of the valves. Relay A is released so that contacts a 1 , a 2  return to their original positions, so discharging capacitor C 2  before relay B, which is held energized for a short interval by means of capacitor C 3  is released so restoring the circuit to its initial state.
Patent GB-434688-A (GB)
Title: Improvements in or relating to means for lifting liquids by direct impulse of fluid under pressure
IPC: F22D11/06
Filed: 1935-03-08
Abstract: 434,688. Raising liquids by gas pressure. HOLDEN & BROOKE, Ltd., and McNAIR, D. G., Sirius Works, West Gorton, Manchester. March 8, 1935, No. 7331. [Class 102 (ii)] In apparatus in which liquid is discharged by fluid under pressure, a bucket float 7 is connected to a pivoted lever 12 adapted to control a steam admission valve 10 and exhaust valve 11. The valves and float lever are arranged within the container 2. Liquid enters the container through a check valve 3, and is discharged through pipe 6 and check valve 5. In modifications, the float rod 14 may be cranked to accommodate a longer lever 12, or the lever 12 may be pivoted at the side of the container.