baber/WOPTO huggingface dataset:
Patent GB-118266-A (GB)
Title: Improvements in and relating to Cigar, Cigarette and like Lighters.
Inventor: WALKOS MICHAEL
IPC: F23Q2/24
Filed: 1918-02-20
Abstract: 118,266. Walkos, M. Aug. 17, 1917, [Convention date]. P o c k e t igniters, fulminating - p e l l e t and like. - A case 10 provided with a spring-hinged cover 12 and a hinged side door 18 contains means for holding and feeding forwards a cord 27 of cotton treated with inflammable solution such as kerosene and paraffin and carrying igniting-composition in the form of beads 28 of sulphur and saltpetre. The cord is canied by a drum 23, its inner end being held between the hub 24, Fig. 3, of the drum and a spring 26. A shaft 20 having its bearings in the door 18 and in one side of the case 10 carries the drum 23 and is provided with a small crank 25. The cord is fed past a guide-roller 33, Fig. 4, and between feed-rollers 29, 30, Fig. 6, geared together by toothed wheels 32; the feed is effected by pressing a finger-piece 47, connected to a lever 46, spring-pressed rod 43, and toggle levers 41, which operate a ratchet wheel 40 both on the down and the up stroke. After passing the feed-rollers, the match cord 27 passes through a guide-tube 34 and between the opposed ends of two sliding grippers 35, Figs. 4 and 5, which are controlled by springs 37, 38; the grippers are moved apart by means of a cam 50 secured to the pivot 49 of the lever 46, and when this is released by releasing the finger-piece 47, the springs 37, 38 cause the grippers to close on the cord. In this position, one of the beads of igniting composition 28 is ignited by a serrated plate 55, Fig. 3, forming part of a slide 53 which is operated by a finger knob 54. During ignition, the bead 28 is held against the serrated V- shaped surface of a slide 61, Fig. 5, operated by a spring-controlled lever 66 and a finger-piece 70.
Patent GB-1056771-A (GB)
Title: Improvements in and relating to pneumatic tyres
IPC: B60C3/06
Filed: 1964-01-23
Abstract: 1,056,771. Pneumatic tyres. COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN RAISON SOCIALE MICHELIN & CIE. Jan. 23, 1964 [Feb. 1, 1963; Nov. 7, 1963], No. 3061/64. Headings B7C. A pneumatic tyre is provided with a carcass which is constructed so that it has annular midsidewall portions of a radial height of between one-quarter and one-half the radial height of the carcass, said sidewall portions being less stiff than the portions extending therefrom to the tread and to the beads so as to concentrate the radial flexibility of the tyre in its midsidewall portions. The carcass may comprise two plies 6, 7 of radially extending cords. The radially inner and outer portions of the sidewalls 2 are stiffened by means of inserts 50, 51 of an elastomer of greater modulus of elasticity than the carcass, said inserts being arranged between the carcass plies. In another embodiment, Fig. 11, the radially outer portions of the sidewalls are stiffened by the extension of the tread reinforcing plies 110, 111 into those portions, while each insert 50 is replaced by a ply of parallel metal cords which is wrapped around the bead wire 4. The radial heights h, k and l of the mid-sidewall portions, the radially inner and outer sidewall portions respectively are limited in the following ways: where H is the radial height of the carcass measured from the beads 4 so that
Patent GB-714284-A (GB)
Title: Improvements relating to processes for the treatment of hydrocarbon gases
IPC: C01B3/38
Filed: 1952-02-05
Abstract: 714,284. Reforming hydrocarbon gases. GALOCSY, Z. DE. Feb. 5, 1952 [Feb. 9, 1951], No. 3062/52. Class 55 (2) A two-step process for the treatment of hydrocarbon gases to render them suitable for use as synthesis or hydrogenation gases or as town's gas comprises burning a primary gas in air, oxygenenriched air or oxygen, the combustion products then being used to reform the hydrocarbon gas to obtain a gas containing carbon monoxide and hydrogen. In the first step of the process, a gas, e.g. a part of the gas to be treated or a part of the final reformed gas, is burnt in air or oxygen, the maximum temperature in the combustion vessel being limited to about 2000‹ C. by adding preheated steam or carbon dioxide to the gas to be burnt. In the second step, which may be conducted under pressure, the hot combustion products meet the preheated hydrocarbon gas, the steam, carbon dioxide and any excess oxygen present in the combustion products reacting with the hydrocarbons to give a gas containing carbon monoxide and hydrogen. If the sensible heat of the products is insufficient for the endothermic reforming reactions, the reforming vessel may be externally heated, e.g. electrically. To reduce the reacting temperature, the reforming vessel may be lined with a catalyst or may contain a fluidized bed of catalytic material. When the reformed gas is to be used for synthesis or hydrogenation purposes or for the production of a non-toxic town's gas, it is reacted with steam in the presence of an iron catalyst to remove its carbon monoxide content. For example, to produce a town's gas, a natural gas containing 2 per cent of C0 2 , 4 per cent of N, and 94 per cent of CH 4  was reformed with combustion products made by burning this gas, to give a gas containing 1.9 per cent of C0 2  ; 21.4 per cent of CO ; 64.6 per cent of H 2  and 12.1 per cent of N 2 , After conversion with steam, removal by washing of part of the CO 2  formed and addition of methane to raise the calorific value, the final gas has a composition of 6.0 per cent of C0 2  ; 1 per cent of CO ; 55.6 per cent of H 2 ; 26 per cent of CH 4  and 11.4 per cent of N,.
Patent GB-1130272-A (GB)
Title: Method of preparing dialkyl phenol compounds
IPC: C07C37/14
Filed: 1967-01-20
Abstract: 1,130,272. Dialkylated phenols. THOMPSON-HAYWARD CHEMICAL CO. 20 Jan., 1967 [24 Jan., 1966], No. 3084/67. Heading C2C. Dialkyl phenols are prepared by a process comprising (1) mixing phenol with a catalyst in a proportion of 0À1-10% by weight, (2) heating the mixture to 50-100 C. in the absence of oxygen, (3) treating the mixture still in the absence of oxygen, with an excess amount of an olefine having 3-24 carbon atoms in the molecule, (4) removing excess olefine and catalyst from the mixture, e.g. by vacuum distillation, and (5) cooling the product to below 50 C. before allowing access of oxygen thereto. Specified catalysts are hydrogen chloride, hydrogen fluoride, phosphorus trioxide, boron trifluoride and stannic chloride. A number of olefines are specified, and mixtures of olefines may also be used. Examples are given.
Patent GB-672537-A (GB)
Title: Low pressure vapourisation apparatus
Inventor: JAQUES THOMAS ARTHUR JOHN
IPC: C23C14/54
Filed: 1950-02-07
Abstract: 672,537. Determining physical qualities of materials. NATIONAL RESEARCH. DEVELOPMENT CORPORATION. Feb. 5, 1951 [Feb. 7, 1950], No. 3086/50. Class 37. [Also in Group II] A low-pressure vaporisation apparatus has an electrode arranged in a circuit to collect electrons emitted from the vaporizing element, this circuit including a current meter. In the apparatus shown for coating a nylon screen with a light-proof film of aluminium, a baseplate 1 carries pillars 2, 3 for supporting electrodes 4, 5 between which is a heating element 6. Short lengths of aluminium wire 7 to be vaporized are suspended from the element 6, which is supplied with current from an A.C. source 12 through a switch 13. A nylon screen 14, which is to be coated with aluminium, is supported on a stand 15. Between the element 6 and screen 14 is a metal plate 16 which shields the screen from the element when in the position shown. The plate 16 is carried on an arm 17 pivoted on a pin 18 in a supporting pillar 19. An armature 22 movable in a solenoid 21 carries a rod 23 which is pivoted to the end of the arm 17. An H.T. source 28 has its negative side 29 connected to the electrode 5 and its positive side 30 connected to the plate 16 through the pillar 19 and arm 17. A relay 31, switch 32, and meter 33 are connected in series with the H.T. source 28. The relay 31 is set to operate at a predetermined current and closes contacts 34 to energize the solenoid 21 from a battery 35. The apparatus is enclosed in a vacuum-tight cover 36 such as a bell-jar, which is exhausted to a pressure of about 10<SP>-6</SP> mm. Hg. The wires 7 fuse as the temperature of the element 6 rises and a layer of molten aluminium spreads over the element. Electron flow between the element 6 and plate 16 increases until a steady state of vaporization is reached. The solenoid 21 is then energized and the plate 16 is moved to expose the screen 14 to the molecular radiations from the element 6. Integrated electron current may be used to expose a series of articles sequentially. The current may control the temperature of the vaporizing element or the feed of metal to be evaporated so that a regulated rate of vaporization occurs.
Patent GB-881172-A (GB)
Title: Improvements relating to static switching arrangements of the cross-ponit type
Inventor: KINSEY RONALD WILLIAM STANLEY
IPC: H04Q3/52
Filed: 1959-01-28
Abstract: 881,172. Automatic - exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 18, 1960 [Jan. 28, 1959], No. 3101/59. Class 40 (4). [Also in Group XL (c)] In a static switching arrangement of the " cross-point " type the switching circuit associated with each cross-point comprises a four-zone diode DP and a rectifier MRP connected in series between the two conductors forming the cross-point, and a resistive biasing circuit RP connected to the junction of the diode DP and the rectifiers MRP. The circuit is arranged so that when the four-zone diode is " off," the rectifier is back biased, and when the diode is " on " the rectifier is forward biased. As shown, the signal paths associated with the conductors are connected to the switch by transformers TRX, TRY each of which is shunted by a limiter circuit, e.g. double Zener diodes ZX, ZY, to limit spurious signals which may cause false operation of the switch. The circuit is connected by applying a positive pulse to terminal TY, and a negative pulse to terminal TX, rectifiers MRX, MRY isolating the signal paths from these pulses. The circuit may be opened by breaking the holding current circuit at BLX. In addition to the bias circuit, a gating circuit may be connected to the junction of the diode and rectifier associated with each cross-point to sub-divide the cross-points into groups. As described in the Provisional Specification, two clamping diodes connected to suitable potentials are used in place of each Zener diode.
Patent GB-358840-A (GB)
Title: Improvements in or relating to change speed gears
IPC: F16H61/664
Filed: 1931-02-04
Abstract: 358,840. Variable-speed friction gearing. THOMSEN, T. P., 87,Amager Landevej, and THOMSEN, A. V., 9, Corneliusmindevej, both in Kastrup, Denmark. Feb. 4, 1931, No. 3558. Convention date, Feb. 19, 1930. [Classes 80 (i) and 80 (ii).] Variable-speed friction gearing comprises planetary balls 11 with diametral pins 10 by which the speed of driven shaft 4 relatively to driving-shaft 1 is varied. A ring of balls 11, preferably in duplicate as shown, is supported between plates g, h<1> carried by shaft 1. The balls run on a race b on a disc 35 fast on shaft 4. They also run on a fixed race 12 within casing k. The outer ends of pins 10 engage radial slots 31 in plate h<1>. The slots 32 in plate g engaged by the inner ends of pins 10 are inclined to the radius. The speed is varied by displacing plate h<1> angularly relatively to plate g, which has the effect of deflecting pins 10 out of the axial plane. The balls 11 precess so as to bring pins 10 back to the axial plane but inclined to the gear axis. The balls 11 turning on pins 10 then transmit a different speed. The displacing of plate h<1> may be effected manually by the axial sliding of a helix 17 having key connections with the plate h<1> and shaft 1. In a modification, the duplicated treads 12, bare centrally arranged and the balls 11 are kept in place by loose encircling rings.
Patent GB-211167-A (GB)
Title: Manufacture of acetic anhydride
IPC: C07C51/56
Filed: 1924-02-12
Abstract: Acetic anhydride is prepared by reacting on glacial acetic acid with chlorine together with sulphur or sulphur chloride, the proportions of the reactants being such that for each atom of sulphur, four atoms of chlorine and at least four molecules of acetic acid are present. The chlorine may be employed under pressure.  Chlorine is led into a mixture of the calculated proportions of sulphur chloride and acetic acid whilst cooling and stirring until the sulphurchlorine ratio of 1 : 4 is attained; the mixture is then heated and the acetic anhydride finally separated by distillation at ordinary or reduced pressure. Escaping sulphur chloride, as well as any acetyl chloride formed, are recovered by passing the vapours into acetic acid, which is then used as the parent material; the loss of sulphur chloride during the reaction must be made good.  If elementary sulphur be employed instead of sulphur chloride, it is suspended in the finely-divided state in the acetic acid.  The process may be operated in a continuous manner by treating the mixture of acetic acid and sulphur chloride or sulphur in an irrigation apparatus with a countercurrent of chlorine while cooling, and leading the reaction product continuously to a distilling apparatus.  By using excess of acetic acid, a mixture of acetic anhydride and acetic acid results.
Patent GB-1353343-A (GB)
Title: Ammunition for hand firearms
IPC: F42B12/06
Filed: 1971-05-03
Abstract: 1353343 Cartridges H-L SCHIRNEKER 3 May 1971 [2 May 1970 7 Jan 1971] 3674/72 Divided out of 1353342 Heading F3A A cartridge 23, Fig. 1, for a firearm as claimed in the main Specification, has a bullet 87 having a body 89 of tungsten and a tip 90 of copper for example which may be needle sharp. The cartridge 23 has a shell 80 of synthetic plastics material, having a cross-section which is uniform over its entire length. The shell 80 contains an insert 86 of brass or steel which receives the bullet 87, powder 85 and a detonator 81. The insert 86 has a frusto-conical end face which serves as a valve seat. The detonator 81 contains composition 82 and an anvil 83 which is abutted by a bead 84 of the detonator 81. The cartridge is provided with a shearing edge 92, Fig. 4, which separates the cartridge from a belt during the firing of the firearm. In another embodiment a wall 95, Fig. 2 (not shown), is provided with an axial bore 96 and a bead 97 is provided in a shell 93. In a further embodiment beads 97, 99, Fig. 3 (not shown), are provided in a shell 93. In other embodiments a percussion cap 364, Fig. 7 (not shown), a firing pin opening 363 and a synthetic plastics sealing member 369 are provided, a synthetic plastics cover 377, Fig. 9 (not shown), is mounted at an end of shell 380, an anvil comprises spring arms 379 and annular beads 383 are formed to fit into grooves of a sealing member 384, metal caps 389, 390, Fig. 11 (not shown), are positioned one at each end of shell 388, a sealing ring 393, Fig. 12 (not shown), is provided, and a projection 404, Fig. 13 (not shown) of a cover-plate 402 penetrates into a percussion cap 405 to effect detonation.
Patent GB-926823-A (GB)
Title: Floor underlay
IPC: F24D13/02
Filed: 1961-02-01
Abstract: 926,823. Mounting electric heating elements in floor underlays. H. SMITH. June 28, 1961 [Feb. 1, 1961], No. 3735/61. Class 39 (3). A floor underlay fabric comprises a sheet 10a of synthetic plastic material, e.g. polyvinyl chloride, having a plurality of parallel passages 11 communicating with one surface of the sheet by respective slits 12 and arranged in the thickness thereof, said passages being wider than said slits, and an electrical heating element 17 contained in the passages. Each slit 12 may be closed by welding after introducing the heating element into the passage. The element and passage are preferably of circular cross-section, and a thermostat may be provided to maintain the temperature between 110‹ F. and 125‹ F.
Patent GB-687093-A (GB)
Title: Improvements in garments with detachable and replaceable parts
IPC: A41B3/00
Filed: 1951-02-05
Abstract: 687,093. Shirt collars; cuffs. DONNER, I. Feb. 6, 1951 [Feb. 5, 1951], No. 3803/52. Divided out of 2763/51 and Addition to 687,071. Class 141. Garments as described and claimed in the parent Specification are modified in that the attaching border on one of the separable garment parts, e.g. a neckband, is formed of two plies of material, 10, Figs. 4, 5, and two lining plies 11, the upper edges of the two plies being turned over the upper edges of the lining plies slightly and stitched at 13, and the two plies of material and the lining plies being stitched together at 14 to provide a channel 15 for the reception of the detachable collar which may be secured by a line of stitching or as described in Specification 503,354. The stitching 16 provides the side limbs at the ends of the channel.
Patent GB-327375-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1929-02-07
Abstract: 327,375. Associated Telephone & Telegraph Co. March 17, 1928, [Convention date]. Divided on 307,913. Automatic exchange systems.-In systems employing group selectors, more than one level is allocated to the same outgoing group of lines and the switches are arranged to apportion the traffic over the levels. This is effected either by arrang. ing the, wipers to be, when normal, in different positions on the switch shafts or by arranging for groups of register controllers to send out different translations for the same input. As illustrated in Fig. 1, the group selectors give access to two main groups, the wipers of the groups of switches being arranged respectively below the 1st, 2nd, 3rd, 4th, and 5th levels. Digits 1 and 6 are received by the switches for the two groups and the traffic is thus sent out over all the levels. If the switches receive digits 1 and 2 the wipers are arranged respectively below the 1st, 3rd, 5th, 7th and 9th levels, even and odd levels being used to give access to the two groups. Specifications 227,888 and 307,913 are referred to.
Patent GB-579347-A (GB)
Title: Improvements in cycle saddles
IPC: B62J1/00
Filed: 1944-03-01
Abstract: 579,347. Cycle saddles. SCHWINN, F. W. March 1, 1944, No. 3886. Convention date, Aug. 14, 1943. [Class 136 (iii)] A cycle saddle includes a saddle top 63 comprising a woven base fabric 10, Fig. 3, having weft and warp threads 11, 12 which are substantially at right angles to each other lying diagonally to the longitudinal axis of the saddle and are loosely interwoven and embedded in a resilient vulcanized material. The base fabric is covered by a layer of soft sponge rubber 14 and a top layer of smooth rubber 15, the three layers being moulded to a predetermined shape. The saddle frame 28 includes a pair of rearwardly extending parallel portions 21 for attachment to a saddle pillar, a transversely extending rear portion (not shown) and a nose part which comprises a member 46 joining the end portions of the frame 28 and carrying a threaded member 49 which engages a nosepiece 47. The rear portion of the top 63 (not shown) is folded around the rear support wire of the frame 28 and is vulcanized to the wire and to the underside of the main part of the saddle top. The forward part of the top 63 may be riveted in the usual manner to the nosepiece 47 or as shown may embody an integral socket portion 62 to fit over the nosepiece which may be cylindrical in cross-section or recessed on each side to form guides in which the wires 28 of the saddle frame may slide.
Patent GB-136957-A (GB)
Title: An Improved Method of Drying Blast Furnace Air, and Apparatus therefor.
Inventor: MACKAY PHILIP ALEXANDER
IPC: C21B9/16
Filed: 1919-02-17
Abstract: 136,957. Mackay, P. A. Feb. 17, 1919. Drying air and gases.-Relates to a method of drying air to be supplied to blast furnaces, by passing the air through or in contact with an acid, preferably sulphuric acid. The acid is supplied under pressure to the drying-vessel by a circulatory system so arranged that the concentration of the acid remains substantially constant. The air, supplied under pressure by a blower, is conducted by a conduit 1 to the drying-vessel 2, whence it passes through a container 4 packed with coke or some other absorbent material to remove any acid mist or spray. The conduit terminates in a rose or perforated crown 6 near the lower part of the acid vessel 2, so that the incoming stream of air is broken up and bubbles through the acid. In order to maintain the concentration of the acid, the strong acid is delivered by a pump 9 from a tank 10 to the vessel 2, and, after becoming diluted by the absorbed moisture, passes through a liquid seal 13 back to the tank. Fresh strong acid is fed to the tank by a pipe 15, while the lighter diluted acid passes through an overflow pipe into another tank 16, whence it may be conducted to any suitable device for reconcentration.
Patent GB-100190-A (GB)
Title: Improvements in Hair Cutting Devices.
IPC: B26B21/12
Filed: 1916-03-17
Abstract: 100,190. American Fire Alarm Co., (Assignees of McDonough, J. J.) March 17, 1915, [Convention date]. Hair-cutting appliances of safety-razor type.- A comb 4 is combined with one or more rocking blades 7 resiliently mounted so as to operate as the comb is drawn through the hair. As shown, the blade is mounted by being passed through a slot 2 in a casing 1, and is there held by a cover 5 provided with a slot, through which passes a bolt adapted to be tightened by a nut 13. This bolt and nut fasten the whole to a spring clip 10, by which the device is clamped to the comb and about which it reciprocates. The upward movement of the cutter takes place against the action of a leaf spring 9, one end of which bears against the back of the comb, the other end being gripped by the bolt and nut.
Patent GB-747129-A (GB)
Title: Improvements in or relating to straight bar knitting machines
Inventor: WICKARDT KURT WILLI
IPC: D04B11/32
Filed: 1954-02-12
Abstract: 747,129. Knitting-machines. HOSEMASTER MACHINE CO., Ltd. Feb. 12, 1954, No. 4130/54. Class 74(2). To ensure an even tension during take up of the fabric on a straightbar machine, means are provided for counterbalancing or offsetting the weight of the welt rod 5 when it is wound on the take-up roller so that the torque of the roller remains constant. The means may comprise weights 6 attached to the welt straps 3 such that they are positioned when the straps are wound on the take-up roller 2 diametrically opposite the we!t rod. Alternatively the roller may be suitably weighted or recessed to receive the welt rod. The welt straps may comprise blocks 46 attached by springs 48 to end members 47 carrying the hooks 55 such that the springs permit yielding during the knitting cycles. The blocks 46 are attached to a weight 44 which is hinged to shaped member 41 attached to the roller 2. The take-up roller may be operated by springs or weights, and a pawl and ratchet mechanism is operated to relieve the tension during the loop forming portion of each knitting cycle and during fashioning. A cam is also provided for operating the pawl- and-ratchet mechanism to unwind the welt straps on completion of the fabric.
Patent GB-172551-A (GB)
Title: Improvements in children's perambulators, mail carts, and like hand-propelled vehicles
IPC: B62B9/12
Filed: 1921-02-04
Abstract: 172,551. Gower, W. T. Feb. 4, 1921. Perambulators.-A perambulator comprising a main body 1 and an auxiliary body 8 has undercut recesses or grooves along the jointing edges of the sides of one body which receive the jointing edges of the other body. Behind a rib 12 on the auxiliary body 8 is a groove 13 to receive the edges of the main body 1. Upturned clips 14 on the auxiliary body engage eyes 15 on the main body or vice versa. The overlapping parts 11 of the auxiliary body rest on guide-ledges 6 on the main body and a spring clip (not shown) beneath the former enters a recess 17 in the latter to lock the bodies together. Alternatively, the overlapping parts of the bodies may be secured by passing cross-pins through concentric openings therein.