baber/WOPTO huggingface dataset:
Patent GB-975371-A (GB)
Title: Improvements in processes for the separation of gases and/or vapours by selective adsorption and desorption
IPC: C01B32/40
Filed: 1962-05-11
Abstract: 975,371. Separating gases by selective adsorption and desorption. ESSO RESEARCH & ENGINEERING CO. May 11, 1962 [May 16, 1961], No. 18227/62. Heading B1L. In a process for separating a mixture of gases and/or vapours by passing the mixture at a relatively high pressure into a bed of adsorbent such as activated charcoal, alumina or a molecular sieve, and then desorbing the bed in two or more stages of successively reduced pressure, the first stage of desorption is carried out by connecting the bed to be desorbed with a bed of adsorbent which has already been desorbed at a relatively low pressure. A mixture of gases A and B is passed through line 18 into bed 1 where B is selectively adsorbed, and unabsorbed gas is taken off through line 21 as product rich in A. Bed 2, which is to be desorbed, is connected via lines 20, 17 and 19 to bed 3 which has already been desorbed and is at low pressure ; and the flow of desorbing gas from bed 2 to bed 3 is allowed to continue until the same (intermediate) pressure is reached in both beds. The connection between beds 2 and 3 is then closed, and bed 2 is further depressurized by allowing the remaining gas, which is rich in B, to desorb and flow through line 19 into receiver 23. Bed 3 is brought to adsorption pressure by the introduction of feed mixture or non-adsorbed product. At the end of the operating cycle, bed 1 is depressurized ; bed 2 is repressurized, and bed 3 is employed to separate the mixture by preferential adsorption. An example is given which relates to the separation of hydrogen from methane using a 5Š molecular sieve. The adsorption pressure is 500 p.s.i.a., and the final desorption pressure is 20 p.s.i.a. Other separations referred to are: H2 from refinery gases, H2S from natural gases, H2O from air or refinery gases, O2 from N2, argon from air, carbon oxides from flue gases, normal paraffins from other hydrocarbons, and benzene from light naphthas.
Patent GB-913834-A (GB)
Title: Improvements in ceramic stains
IPC: C09C1/00
Filed: 1960-05-24
Abstract: 913,834. Ceramic pigments. ASSOCIATED LEAD MANUFACTURERS Ltd., and OLBY, J. K. March 9, 1961 [May 24, 1960; Nov. 14, 1960 (2); Jan. 20, 1961], Nos. 18309/60, 29047/60, 29048/60 and 2418/61. Class 56. A vanadium-zirconium ceramic pigment for use in the production of glazes for ceramics, of the type comprising a calcined mixture of zirconia, silica, sodium fluoride or other alkali metal halide and ammonium vanadate or other source of vanadium pentoxide which has a zirconium silicate crystal lattice with vanadium present therein, contains in the crystal lattice as colour modifier 0.1-1% phosphorus; or 0.1-2% arsenic; or 0.5-25% bismuth; or 0.5-15% bismuth and either 0.1-3% yttrium or 0.2-6% lanthanum or 0.2-6% neodymium ; or 0.1-2% manganese, all being percentages by weight of the zirconium oxide in the pigment. A number of examples of mixtures and methods of mixing are given which, besides normal oxides, utilize sodium phosphate, zirconium oxychloride, sulphuric acid and ammonium metavanadate. Specification 625,448 is referred to.
Patent GB-570698-A (GB)
Title: Improvements in or relating to machines for cutting cheese and like foodstuffs
IPC: A01J27/04
Filed: 1943-11-04
Abstract: 570,698. Cheese &c. cutters. PHIPPEN, A. J. Nov. 4, 1943, No. 18310. [Class 87 (ii)] A.cutting wire 12 projects upwardly through a slot in a table 1a, and is normally pulled down by a weight W acting through a chain 5 and chains 8 which are secured to the ends of the wire. When not in use, the wire is hung on hooks 3. In use, the wire is taken off the hooks and allowed to rest on a piece of cheese on the table. Then a sprocket wheel 4 is turned, by means of a handle 16, to pull the wire down through the cheese. The connection between the handle 16 and the sprocket wheel shaft includes a clutch which is spring-pushed out when the device is idle ; to engage the clutch the handle is pushed in axially along the shaft.
Patent GB-363671-A (GB)
Title: Improved process for the manufacture of detonating caps
IPC: F42B3/11
Filed: 1930-06-17
Abstract: An alloy of 90-95 per cent of copper with 5-10 per cent of aluminium is described for making detonating caps, and it is stated that a large portion of the copper may be replaced by zinc and a portion of the aluminium may be replaced by magnesium.
Patent GB-405538-A (GB)
Title: Improvements in moving-coil loud speakers
IPC: H04R9/04
Filed: 1933-06-29
Abstract: 405,538. Loud-speakers. ROLA CO., Cleveland, Ohio, U.S.A. June 29, 1933, No. 18527. Convention date, Jan. 13. [Class 40 (iv).] A two part centring spider 20, Figs. 1 and 2, for a moving coil loud-speaker, preferably formed of a phenolic condensation product, is provided with tabs 25 at the marginal edges adapted to project through spaced slots in the diaphragm 10 and to be cemented to the back of the diaphragm at 32. Figs. 5 and 6 show alternative forms of spider.
Patent GB-563021-A (GB)
Title: Improved petrol lighter
IPC: F23Q2/08
Filed: 1944-01-31
Abstract: 563,021. Pyrophoric lighters. ABBOTT, S. E. Jan. 31, 1944, No. 18563/42. [Class 75 (iii)] The extinguisher ca,p 16 and the friction wheel 22 of a pyrophoric lighter are pivoted on a pin 17 carried by limbs 18 on the projecting end of the flint tube 19, part of the periphery of the friction wheel extending through a slot in the top of the cap so that the friction wheel and cap may be operated simultaneously by a finger or thumb. The sides of the cap are connected at their rear ends by a bridge-pin 24. The cap is held in the open or closed position by the engagement of a spring 25 on the cap with the top or side edges of the limbs 18 or of a spring secured to the lighter body with the underside and end of the cap.
Patent GB-405186-A (GB)
Title: Improvements in or relating to hinges for tin boxes
IPC: B65D43/16
Filed: 1933-07-01
Abstract: 405,186. Hinges; boxes. SCHMIDT, E., 3, Ilmenauerstrasse, Grunewald, Berlin. July 1, 1933, No. 18735. [Class 65 (ii).] In a hinge for the lid of a tin box, formed of the concentrically rolled edges of the lid and box, the rolled portions being provided with one or more transverse interengaging grooves to prevent relative longitudinal movement, the grooves are tapered or wedgeshaped in the peripheral direction so as to produce a jamming action when the lid is opened, the lid being thus frictionally held in any open position. In the Figure, the curled edge 3 of the lid bears on the curled edge 4 of the box and is provided with a part-circumferential groove on its inner side, forming a projection 7 on its outer side, of depth increasing gradually towards the edge of the metal ; the box part 4 is formed with a similar projection fitting into the groove in the part 3. As the lid is opened, the shallow part of the groove in part 3 rides over the deeper part of the projection on part 4, producing friction between the parts to hold the lid open.
Patent GB-399623-A (GB)
Title: Improvements in mechanical games
IPC: G07F17/32
Filed: 1932-07-04
Abstract: 399,623. Coin-freed game apparatus. WINNING, J. F. F., 17, Westminster Road, Hanwell, Middlesex. July 4,1932, No. 18817, [Class 27.] A coin-freed amusement machine is adapted to deliver to the player, after the insertion of two coins, a check which may be of higher or lower value than the inserted coins, and which is subsequently exchanged for commodities. The machine is characterized in the coin action hereinafter described. Delivery of articles stored in piles.-The checks are stored in four hoppers 30 in a turret 17, Fig. 5, and delivered from each hopper in turn to a recess 13 in a spring-pressed drawer 10 which is released by a bolt 9, Fig. 2. As the drawer moves outwardly, a cam surface on a member 14 carried thereby engages a pin 15 on a sliding detent 16, withdrawing the latter from engagement with one of four notches 16<1> formed on the base of the turret 17. As the drawer is pushed back, a pawl 18 thereon engages one of four pins 19 carried by the turret, rotating the latter through a quarter revolution, so that a check from the next hopper falls into the recess 13. The checks are pressed downwardly by weights, one of which is adapted to lock the drawer 10 when the checks are exhausted. Coin action, mechanical-connection; multiple coin.-A penny is inserted in a diametric slot in a drum 4, Fig. 2, capable of rotation in one direction by a hand-wheel 1, and displaces a spring-pressed locking member 3 from engagement with the slot. The drum may now be rotated half a turn, during which the penny drops out, and at the end of which the member 3 again engages the slot. A second penny is now inserted, and during the subsequent half turn, a projection on the spindle 4 engages a spring-controlled rod 6 which, through a bellcrank 7 engaging a pin 8, operates the bolt 9 to release the drawer. In order to prevent repeated actuation of the drawer by keeping the spindle 4 in such a position that the rod 6 is permanently depressed, a detent 40 carried by a'pivoted arm 38 is kept in engagement with ratchet teeth 41 on the drawer by a spring 42, preventing the drawer being shut except when the locking member 3 is engaging the slot, in which position a pin 44 on a member 43 carried by the member 3 engages the arm 38 and frees the drawer. To prevent the spindle 4 from being turned so rapidly that the first penny does not fall out, thus enabling the machine to be used without the insertion of a second penny, a rod 22 is positioned in proximity to the spindle 4 for catching the edge of a penny which has not dropped out.
Patent GB-953727-A (GB)
Title: Apparatus for intensifying light
IPC: H01S3/03
Filed: 1960-04-01
Abstract: 953,727. Communication systems. TRG Inc. April 1, 1960 [April 6,1959], No.18836/63. Divided out of 953, 721. Heading G1A. [Also in Division H3] Lasers (see Division H3) are used in a system for transmitting messages by a beam of light. At the transmitter 201 a laser 203 produces a beam which is modulated by a Kerr cell 205 under the control of a multiplexer 206 receiving signals from a number of channels. At the receiver 202, another laser 209 amplifies the signals before they are demodulated by a photosensitive device 212. The electric signals are directed to their appropriate channels by a demultiplexer 213. Specifications 953,722, 953,723, 953,724, 953,725 and 953,726 also are referred to.
Patent GB-260334-A (GB)
Title: Improvements in and connected with the circuits of train lighting and similar installations and with electro-magnetic switches for controlling the said circuits
IPC: H02J7/14
Filed: 1925-07-24
Abstract: 260,334. Stone & Co., Ltd., J., and Darker, A. H. July 24, 1925. Lighting systems; charging batteries. - In a train lighting or similar system, momentary closure of a press-button j, Fig. 1, energizes a coil g from a battery B to close an electromagnetic switch f, whereupon a holding circuit is completed by the switch f through a coil h and normally closed press-button l, and a circuit is completed to the " half " lights L and to the main lights L<1> under control of a tumbler switch S. The switch f is opened by momentarily opening the press button l or by energizing a demagnetizing winding (not shown) from the guard's van. A stop m is adjusted so that the coil g is ineffective to close the switch f if the battery B is not sufficiently charged, and another stop n is adjusted so that the coil h fails to hold the switch f closed after the battery has discharged to a predetermined extent. When the train is running, an auxiliary coil o is energized by the battery charging dynamo D and aids the coil h to maintain the switch f closed even though the switch is subjected to vibration. The coil o is not strong enough by itself to close the switch or to hold it closed. In a modification, the coil o is in circuit with a. hand switch p, Fig. 3, and the movable contact of the usual " cut-in " switch C. Upon closure of the doublepole switch p, p<1> the lamps L<1> are lit irrespective of the state of the battery, but the lamps L are only brought into circuit through the switch f which can be closed and opened by the pressbuttons j, l as in the system shown. in Fig. 1. However, when the train is running at such a speed that the " cut-in " switch C closes, the coil o is energized from the dynamo, and in this modification the coil o is effective to close the switch f, so the lights L are lit when the train is running. If the automatic closing of the switch f is not desired, then the power of the coil o is reduced by removing a short-circuit g<1> from a resistance q. The separate coils g, h may be combined so that the whole coil acts for closing the switch, whereupon a part of the coil is used for holding purposes. Specification 180,049 is referred to.
Patent GB-200360-A (GB)
Title: An improved ruler for office and other use
IPC: B43L7/04
Filed: 1923-01-09
Abstract: 200,360. Upton, W. Jan. 9, 1923. Rulers.-In a ruler of the kind comprising two rollers a, b mounted on parallel axes within an openbottomed corrugated sheath c, the edge of the sheath is substantially in line with the axes of the rollers. The sheath may be formed with longitudinal strengthening-ribs h.
Patent GB-1325129-A (GB)
Title: Permanentmagnet magnetic chucks or work holders
IPC: B23Q3/154
Filed: 1972-04-25
Abstract: 1325129 Magnetic holding devices P M BRAILLON 25 April 1972 [13 May 1971] 19067/72 Heading H1P A magnetic chuck or work-holder comprises (Fig. 1) a base-plate 1 of magnetizable material and a polar plate 4 wherein polepieces 5 and non-magnetic separators 6 are lineally stacked at predetermined pitch. A non-magnetic metal rectangular frame 2 having cylindrical recesses receiving alternate polepieces 7 and permanent magnets 8 which is interposed between plates 1 and 4 receives a slidable core 3 having a non- magnetic metal block with cylindrical recesses in two longitudinal rows alternately receiving polepieces 9 and permanent magnets 10. In the position of Fig. 2 the magnets and polepieces are transversely aligned so that polepieces 5 are energized to attract a workpiece 12 (Fig. 3) by a magnetic field looped therethrough. In the opposite position of the core 3 (Figs. 4, 5, not shown) the magnets are misaligned inter se and the magnetic field is looped through the polepieces 5 of plate 4 to release the workpiece. In a modification (Figs. 6-9, not shown), the magnetic core comprises three adjacent blocks each having two rows of cylindrical holes alternately receiving polepieces and permanent magnets enclosed in a frame as above, with the central block stationary and the flank blocks movable simultaneously; all the magnets being aligned in the operative position and misaligned inter se in the release position. The magnets and polepieces are identical and interchangeable.
Patent GB-128835-A (GB)
Title: Improvements connected with Pits Used for Liming and Tanning Hides.
Inventor: RANDALL GEORGE
IPC: C14B1/00
Filed: 1918-11-21
Abstract: 128,835. Randall, G. Nov. 21, 1918. Treating hides with liquids; vats, construction of.-A frame for carrying and suspending hides in a liming or tanning pit comprises two main bars c held rigidly apart by crossing bars e. The bars c rest on the edges of the pit and have longitudinal depending webs c<2> perforated at f to receive devices g for holding the hides j edgewise. The device g may be a chain carrying a nip-hook. It is stated in the Provisional Specification that the solution is stirred by lifting and lowering the frame and hides.
Patent GB-1030881-A (GB)
Title: Improvements in or relating to artificial leather and the production thereof
IPC: D06N3/12
Filed: 1963-05-14
Abstract: An artificial leather comprises textile fibres, of which the density is greatly increased by subjection to pressure, in a matrix of a material comprising a flexible hardened epoxide resin.  Specified fibres are cotton, polyester and polyamide fibres.  Preferably the fibres are opened, e.g. by beating, before impregnation.  The fabric is made by adding an excess of binder to the fibres and pressing to squeeze out the excess.  The binder preferably comprises an epoxide resin, a polysulphide polymer, a polyamide resin and an aromatic amine.  The resin blending may be diluted with a mixture of equal weights of methanol and acetone. The bonded fabric is hardened by curing at room or elevated temperatures and a chemical hardener, e.g. diaminodiphenylmethane, may be added.  The artificial leather may be tanned.  In one example, a layer of opened polyamide fibres were spread over a polypropylene sheet and compacted by rolling the sheet inwards from the edge thereof.  The sheet was unrolled, a small amount of adhesive spread on the surface of the fibrous layer, the fibrous mass was passed through the binder and then between rollers to squeeze out excess binder.  The polypropylene sheet and fibrous layer thereon were cut into strips and stacked on a steel plate and pressure applied from above by a second steel plate, the resin being cured at a high temperature whilst the layers were still under pressure.  Finally the polypropylene sheets were peeled off of the fibrous layers.  In another example, a layer of polyester fibres was placed on the binder which had been poured into a mould and the mixture compacted by a plunger plate.  The resin was cured whilst still under pressure.  Examples of the chemical composition of the component substances of the binder are given.
Patent GB-1020997-A (GB)
Title: Protective device for use in transistorised circuits
IPC: G05F1/573
Filed: 1964-05-08
Abstract: 1,020,997. Fusible cut-outs; protective systems. STANDARD TELEPHONES & CABLES Ltd. May 8, 1964 [May 14, 1963], No. 19216/64. Headings H2G and H2K. An electrical fuse comprises a short length of fuse wire between two terminals 1<SP>1</SP> and 3<SP>1</SP>, which is fusible to open the circuit containing the capacitor C and is arranged so that if an arc is formed by the fusing of this wire this is diverted so that current flows between terminals 1<SP>1</SP> and 2<SP>1</SP>, thus by-passing the capacitor. A helically wound insulated wire is connected to terminal 2<SP>1</SP> which is thereby initially insulated from terminals 1<SP>1</SP> and 31, but when arcing occurs the insulation is burned away and the arc is diverted to terminal 2. The transistor TS, in the circuit is thus protected from discharge-current pulses formed by a short circuit in the load circuit B.
Patent GB-1209204-A (GB)
Title: Parachute
Inventor: SCHUERCH HANS ULRICH
IPC: B64D17/00
Filed: 1968-04-23
Abstract: 1,209,204. Parachutes and equivalent apparatus. ASTRO RESEARCH CORP. 23 April, 1968, No. 19236/68. Heading B7G. In a parachute or equivalent apparatus the canopy 20 or member 30 producing drag as the apparatus passes through the air is made of open-work material comprising elements (e.g. fibres) spaced at a pitch of at least four times, and preferably twenty times, the element width. The canopy 20 may be a normal domed canopy with the load suspended by rigging lines, or it may comprise an outer rigid ring 21, and an inner circular platform 22 on which the load 24 is held by bands 23. In an alternative form the member 30 is a streamer having rigid elements 31 32 at its ends the load 33 being suspended from one element 32 which may comprise a roller 35 from which the streamer is unwound, the movement of the roller may be controlled by a brake or an electric motor.
Patent GB-1437568-A (GB)
Title: Method of reducing emission of pollutants from multi-cylinder engine
IPC: F01N3/26
Filed: 1974-05-02
Abstract: 1437568 Reducing pollutants in engine exhaust NISSAN MOTOR CO Ltd 2 May 1974 [30 May 1973] 19293/74 Heading F1B [Also in Division F4] A method of reducing concentration of oxides of nitrogen in exhaust gas from.a multi-cylinder I.C. engine comprises supplying a rich air-fuel mixture to a first group 11, 14 of engine cylinders and supplying a lean air-fuel mixture to a second group 12, 13 of engine cylinders. The exhaust from each group passes into a reactor 40. The lean mixture may be obtained by diluting the rich mixture from a carburetter 30 with air drawn in through regulating valves 60. The valves are controlled by the vacuum in the venturi of the carburetter Fig. 3 (not shown). The reactor comprises a double cylinder (41), (42), Figs. 4, 5 (not shown) to aid mixing of the exhaust gases from the two groups of cylinders. The engine may alternatively be provided with two carburetters set for rich and lean mixtures or an equivalent fuel injection system Figs. 6, 7 (not shown).
Patent GB-1179364-A (GB)
Title: Method and Device for the Production of Fish Fillets
IPC: A22C25/16
Filed: 1967-04-27
Abstract: 1,179,364. Filleting fish. NORDISCHER MASCHINENBAU RUD. BAADER. 27 April, 1967 [29 April, 1966], No. 19380/67. Heading A2U. In producing fish fillets substantially fish is slit open by knives 11, the backbone free from pinbones the belly cavity of the is loosened in the tail region by a pair of parallel knives 12, the belly flaps containing the pinbones 4 are severed by a pair of angularly disposed knives 13 aided by guide elements 9 and the fillets are cut from the skeleton of the fish by knives 14 and 15. The knives 13 subtend an angle between them of less than 180 degrees as seen from the back of the fish. The cuts made by knives 13 extend parallel to the longitudinal axis of the fish in the pinbone region of the fish and also extend between such region and the anus region. The fish may have their dorsal or belly sides engaging the conveying means which may convey the fish in a circular or straight line path.
Patent GB-1418864-A (GB)
Title: Method for enciphering and deciphering continuous-tone pictures  in picture telegraphy
IPC: H04L9/18
Filed: 1961-05-29
Abstract: 1418864 Facsimile system R HELL 29 May 1961 [28 May 1960] 19387/61 Heading H4F In a method for enciphering and deciphering continuous tone pictures in picture telegraphy using pulse code modulation, the picture amplitudes are quantized and coded and are transmitted as pulse combinations, and a predetermined initial co-ordination between the quantized picture amplitudes is currently altered according to a key in agreement at the transmitter and the receiver. In Fig. 1 the picture to be transmitted is scanned by the scanning device 1 and the signals are fed through a low pass filter 2 and amplifier 3 to a tone value reversal unit 4, which changes the positive im-  age into a negative image since the reproducing equipment requires a negative image. The signals from unit 4 are sampled by unit 5 at twice the highest signal frequency (e.g. 2000 cycles per second) and fed to a holding circuit 6 comprising a capacitor which retains the sampled amplitude over the sampling period and is then discharged. A cypher amplitude signal generated in unit 8 may be added in unit 7 to the signal and the resultant fed to quantizing and coding units 9, 10; these may comprise a cathode-ray tube which produces a five digit binary code number in response to the input. The output pulses are shaped in unit 12 and used to open a gate 13 which allows standardized rectangular pulses from generator 14 to pass when there is a pulse input. Units 15 and 16 are an alternative to units 7 and 8 and allow the pulses to be cyphered by addition, according to Vernam's sign rules, in unit 15 to cypher pulses produced in generator 16. Synchronizing pulses from timing generator 22 are added in unit 17, and the signals are fed through a low pass filter 18 and amplifier 19 to the telegraph line 20. At the receiver, Fig. 2, signals pass through a filter 30, amplifier 31, synchronization pulse separator 32, and pulse shaper 34 to open gate 35 which allows rectangular pulses from generator 36 to pass when there is a pulse input. Cypher generator 38 corresponds to unit 16 at the transmitter, and the input is decoded in unit 37 and converted to an amplitude level in one of the units 39, 40 which are alternately operated by switches 41, 42. Units 43-46 subtract the cypher amplitude, if this was added in unit 7 at the transmitter, and the signal is then passed through a filter 47 and amplifier 48 to the picture recording apparatus 49.