baber/WOPTO huggingface dataset:
Patent GB-441971-A (GB)
Title: Improvements relating to rotary intaglio printing
IPC: B41F9/06
Filed: 1934-07-23
Abstract: 441,971. Intaglio printing-machines. WEISS, A., 2823, Avenue 1, Brooklyn, New York, U.S.A. July 23, 1934, No. 12602/35. Convention date, July 22, 1933. Divided out of 440,748. Drawings to Specification. [Class 100 (ii)] Inking-apparatits.-In a rotary intaglio printing-machine of the kind having a circulating inking system and having wiping means adjacent to and in front of the impression cylinder, the ink is directed on to the printing- cylinder at such a position that it remains in contact with the cylinder during the major portion of the revolution of the cylinder before the excess is removed by the wiping means. The solvent action of the newly applied ink upon the ink remaining upon the cylinder after printing is thus prolonged. The construction of machine described is identical with that described in Specification 440,748. Specifications 440,773 and 440,775 also are referred to.
Patent GB-112400-A (GB)
Title: Improvements relating to the Lubrication of Internal-combustion Engines.
Inventor: HAGENS HUBERT
IPC: F01M1/16
Filed: 1917-09-05
Abstract: 112,400. Hagens, H. Sept. 5, 1917. Force-feed lubricators.-In a pump lubricating- system for internal-combustion engines having a by-pass connected to the engine throttle so as to reduce the supply of lubricant at low speeds, the by-pass comprises a piston valve B having an opening d connecting the supply and delivery pipes a, e and a groove b connecting the pipe a to a pipe c leading to the reservoir. The pipe c is fitted with a regulating-valve C. One or a pair of piston valves B are operated by a link D pivoted in the same axial line as the throttle lever on the carburettor.
Patent GB-296564-A (GB)
Title: Improvements in rotary engines and pumps
IPC: F01C1/356
Filed: 1928-03-12
Abstract: 296,564. Lammeren, W. P. van. March 12, 1928. Movable abutment type; working-fluid supply; cooling parts. - A rotary engine or pump of the sliding abutment type with an annular chamber and piston 4 of circular cross-section has the piston 4 formed cam-shape and with a groove 13 of a shape to correspond with the semi-circular abutting end of the sliding abutment, Fig. 10. Fig. 6 shows an internal-combustion engine in which mixture compressed in a compressor chamber 24 is transferred past a rotary disc valve 29 to the explosion chamber 25. The compressor and engine pistons are arranged at an angle to each other and also the disc valve 29 are carried by a rotor which is formed with flanges co-operating with the stator to form the annular chambers 24, 25 of circular cross-section. The abutments 5 may be spring-actuated but are shown fitted with control pistons 6 for pneumatic operation, the compressor abutment being actuated by the exhaust gas pressure and the engine abutment by the compressed gas pressure through the medium of the disc valve 29 carried by the rotor. The rotor is cooled by openings 36 for the passage of air and the stator by water jackets 37. In the modification shown in Fig. 8 the engine unit is replaced by turbine blades 46. Mixture is compressed past a valve 42 into an explosion chamber 43 and after ignition is delivered past a valve 45 on to the blades. The compressor piston, valves 42, 45, and turbine blades 46 are carried by a single rotor 47.
Patent GB-890599-A (GB)
Title: Silicon carbide single crystal semiconductor devices
IPC: H01L21/04
Filed: 1960-04-11
Abstract: 890,599. Semi-conductor devices. WESTING- HOUSE ELECTRIC CORPORATION. April 11, 1960 [April 24, 1959], No. 12765/60. Class 37. In a method of making a semi-conductor device involving heating to bond or alloy a member or members to or diffuse impurity into a silicon carbide monocrystal, the monocrystal and the member or members or the source of diffusing impurity are enclosed in a mould of finely divided refractory powder compacted about the assembly. The powder, which must not wet the crystal at the heating temperature used, and is preferably of similar thermal expansion coefficient to the crystal, may be tungsten, molybdenum, boron nitride, graphite or mixtures thereof. Graphite containing powdered silicon is the preferred material since it tends to restrict decomposition of the crystal. In one embodiment graphite powder is first pressed into the bottom of a cylindrical hole in a graphite block. A monocrystalline silicon carbide disc 0.02 inch thick previously etched in hydrofluoric acid and cleaned in alcohol is placed on the graphite powder followed by a similarly cleaned germanium foil 0.052 inch thick. Graphite powder packed on top of this assembly is held down by a graphite block while the arrangement is heated to 1725‹ C. for three minutes in an atmosphere of argon by passing current through the graphite. A plurality of crystals may be treated simultaneously using a graphite block with a plurality of holes. In another method a foil of aluminiumsilicon eutectic containing 1% by weight boron and a superposed silicon carbide crystal wafer are embedded as above and heated in argon to 1425‹ C. for 30 minutes. In a further alternative powdered silicon nitride containing 1% by weight of aluminium is laid on the graphite powder base and compressed and the silicon carbide wafer placed on top of it. The graphite powder packing is then completed as before and the assembly fired in vacuum at 1800‹ C. for three minutes to diffuse aluminium into the crystal.
Patent GB-559727-A (GB)
Title: Filters for decontaminating air
IPC: B01D46/32
Filed: 1942-09-10
Abstract: 559,727. Absorption of gases. CHEMA MANUFACTURING CO., Ltd., and SIGMUND, M. Sept. 10, 1942, No. 12798. [Class 1 (i)] [Also in Groups XXVIII and VI] Air is purified by activated charcoal contained in an annular container with perforated sides 6, 11, the charcoal being compressed by a slidable lid 16 held down by springs 26 abutting on the cover of an outer vessel 9. The top edge of the side 11 of the container is stiffened, to ensure free movement of the lid, by an outer metal ring 21 pressed outwards at the lower end and turned down at the upper end over the ring 21. The lid 16 is domed to slide freely over the inner side 6 and is stiffened by circular under ribs 17 and radial ribs on the upper face. Studs 27 help to locate the springs. Corrugated rings 29 protect and locate the container. Specification 545,089, [Group XXVIII], is referred to.
Patent GB-543190-A (GB)
Title: Improvements in and connected with electromagnetically released electric switches
IPC: H01H83/22
Filed: 1940-08-12
Abstract: 543,190. Electromagetic switches. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., and HILL, W. E. Aug. 12, 1940, No. 12864. [Class 38 (v)]. The magnet of an automatically - released overload electric switch is held on a base a by "shading" means g detachable from the core c and held in position by screws h. The core may have a fixed air-gap c' and is slid into the coil which may have extending terminal tongues to engage contacts when in position. The armature is of the clapper type and may be floatably mounted.
Patent GB-148274-A (GB)
Title: An improved speed indicator for ships or aircraft
IPC: G01P7/00
Filed: 1920-05-10
Abstract: 148,274. Boerner, A. July 18, 1919, [Convention date]. Gyroscopic speed-indicators; accelerometers. - Apparatus for indicating the speed of a ship or aircraft consists of a table 1 corresponding to the chart of an Auschutz or Sperry gyroscopic compass and carried by a float 2 contained in a vessel 3 of mercury and maintained in a horizontal position by three gyroscopes 4 associated therewith. Mounted on the table on axes 6<a>, 7<a>, pointing due north and south, are rings 6, 7 from which are suspended similar horizontal gyroscopic disks 8, 9 driven at equal speeds in opposite directions. Connected with the rings 6, 7 are frames 6b, 7b bearings rods 6<c>, 7<c> arranged in line with the axes of the gyroscopes, and passing through spring roller bearings carried by horizontal rods 10, 11 adapted to move in an east and west direction. Connected to the rods 10, 11 and arranged to slide and turn with shafts 12a, 13a are friction disks 12, 13 engaging the peripheries of cones 14, 15 driven at equal and opposite speeds by clockwork. The shafts 12a, 13a bear bevel wheels 17, 18 forming part of a differential gearing carried by a pivoted frame 21 provided with a pointer 22. Any acceleration or retardation in a north and south direction causes the gyroscopes to oscillate about the axes 6<a>, 7<a> and to move the friction wheels 12, 13 from their central positions along the cones 14, 15 thus rocking the frame 21 to move the pointer 22. The device may be employed to determine the speed on any course, as distinguished from a north and south course, by mounting the apparatus rotatably on the table 1. Odometers.-The distance covered may be determined by combining a second integrating device with the pointer 22.
Patent GB-552472-A (GB)
Title: Improvements in or relating to driving bands or chains
IPC: F16G5/18
Filed: 1941-10-07
Abstract: 552,472. Driving-chains. P. I. V. CHAIN GEARS, Ltd., and ABBOTT, G. J. Oct. 7, 1941, No. 12927. [Class 24J [Also in Group XXIV] Relates to powertransmission driving bands or chains of the kind carrying a series of transversely movable slats the ends of which form teeth to engage depressions in the flanges of expanding pulleys. Such chains are described in Specifications 228,838, [Class 80 (i)], 242,416 and 335,366, [both in Class 24], the slats being mounted in the links. An improvement on this is described in Specification 519,851 wherein the slats are mounted in carriers capable of rocking about the axis of the pivots connecting each pair of links. According to the invention the links -have extensions adapted to co-operate with surfaces on the slat carriers which are thereby so tilted as to enable the slats to engage correctly the depressions in the flanges. The chain comprises a number of links A with pivots B on which are rockably mounted end plates C of the slat carriers. The centre parts of the slats D lie to the outer, and the ends D' to the inner side of the line joining the axes of the pivots. The end plates have a' central portion C' which supports the slats, and the arms of the plates, which are U-shaped, are shaped to 'engage slots E<1> formed near the ends of a cover plate E, Figs. 4, 8, held in place by a locking plate F having a central tongue F' which is bent down, to engage a slot E<2>. The plates have shoulders C' engaged by tongues E<3> bent up from the cover plate E to prevent the latter from being pressed too heavily on the slats. The central edges of each cover plate are bent down to form cam surfaces G which cooperate with hook-like cam portions A<1> on the links, as the chain comes on to a pulley, to cause the carriers to assume a radial position. As the carriers leave the pulley they are tilted forward and then, as they approach the other pulley they are tilted backwards to assume again the radial position. Further, the end plates C of the carriers are of such contour that by their inter-engagement, a prelimary backward movement is imparted before the final pre-setting operation by the extensions A<1> and cam surfaces G.
Patent GB-220087-A (GB)
Title: Improvements relating to fastenings for spring gaiters for motor vehicles, wearing apparel such as leggings, hand bags, and other like purposes
IPC: F16F1/24
Filed: 1923-05-15
Abstract: 220,087. Kinsella, J. F. May 15, 1923. Metal-strip fastenings; staple and slotted plate fastenings. - A fastening for spring gaiters for motor vehicles, wearing-apparel such as leggings, hand bags and for other purposes comprises two metal strips e, Figs. 3 and 7, adapted at their opposite ends to engage staples. or pegs c and at their overlapping adjacent ends to engage a common staple or peg d, a strap or pin f being passed through the staple or peg d respectively. The staples and pegs c, d aresecured to the lower overlapping portion of the article to be fastened and pass through eyelets in the edge of the upper portion. When the edges a, b of the article abut instead of overlapping, each edge is provided with staples c, Fig. 6, which overlap. The adjacent ends of the strips pass over two staples disposed side by side. For fastening the cover g of a motor vehicle radiator, Fig. 8, each strip e is cranked at one end and provided with a slot for detachably engaging a peg c on the vehicle. The other ends engage a staple d and are secured by a strap f.passed therethrough.
Patent GB-611452-A (GB)
Title: Improvements in or relating to cases for storing photographic plates and like articles
IPC: G03B21/54
Filed: 1946-04-30
Abstract: 611,452. Delivering contents of boxes. LEHNER, H. April 30, 1946. No. 13051. [Class 18] [Also in Group XX] A container for storing photographic plates and the like is characterised in that a device is disposed below the inserted plates which consists of a shaft rotatably mounted below the plates and carrying prongs spaced apart by distances corresponding to twice the distance between the adjacent plates, so that on operation of the device every other plate is raised so that it can readily be gripped for removal. As shown, below the plates 4, which are inserted between vertical guides 2 and rest on horizontal bars, is a shaft 1 with prongs spaced and staggered so that rotation of the shaft through 45 degrees by a handle 3 in one direction lifts the odd-numbered. plates, and in the other direction lifts the even-numbered plates. The shaft is held in any one of its three positions by a spring pin in the front wall of the container.
Patent GB-715855-A (GB)
Title: Gun carriage
IPC: F41A27/06
Filed: 1952-05-22
Abstract: 715,855. Change speed gear; friction clutches. VERWALTUNGSGES DER WERKZEUGMASCHINEN-FABRIK OERLIKON. May 22, 1952 [May 23, 1951], No. 3051/52. Class 80 (2) [Also in Group XXI] A seated gunner moves the gun in azimuth by pressing a foot against either one of two pedals 16. The pedals shown are each rotatable about a horizontal axis in a mounting 18, and when rotated by a foot of the gunner serves, by means of cams, to couple the mounting with a plate 32 so that the latter rotates with the mounting 18 upon application of foot pressure to one or the other pedal. Studs 85 couple the plate 32 with a clutch casing 86 which is mounted on a longitudinally movable ring 87. The'ring and the casing with it can be moved up and down by mechanism comprising a rod 95, lever 94, plunger 96 and spring 97. In the position shown the casing 86 engages a clutch plate 88 fitted with teeth which mesh with two planet gears 91 on a support 90, the gears 91 also meshing with the toothed rim 92 on an outrigger 80 extending from the gun mounting. The support 90 is connected to a hollow shaft 81 which carries a sprocket 83, this being connected by a chain to a sprocket on the gun mounting whereby its rotation will serve to train the gun. For a higher aiming speed the plunger 96 is moved downwards to bring the casing 86 into engagement with an upper clutch plate 84 carried by the shaft 81. In a modification, Figs 19 and 20 (not shown) one of the pedals is movable to effect the gear change.
Patent GB-776036-A (GB)
Title: Improvements in or relating to unions for multi-layer tubes
IPC: F16L23/028
Filed: 1955-05-05
Abstract: 776,036. Pipe couplings. MANNESMANN AKT.-GES., and PETERSEN, U. May 5, 1955, No. 13070/55. Class 99(1) In a pipe line consisting of at least two multi-layer tubes 1, Fig. 1, joined by a union, wherein the adjacent ends of the tubes overlap, at least two annular springs 3 tapered to slide over one another are located in a space between the overlapping portions of the tubes and are urged together by clamping means, such as a nut 4, externally threaded on a collar 8. In a modification, a set of springs 3, 3<SP>1</SP>, Fig. 2, is interposed between each tube end and the corresponding end of a sleeve 7, a nut 4 being threaded into each end of the sleeve; rubber packing rings 5 are provided as shown. The springs nearest the joint may be made of steel resistant to the medium conveyed by the tubes. In another modification, the ends of the inner layers diverge and contact a substantially correspondingly-shaped thrust-ring 10, Fig. 3, and in this region the outer layers. are replaced by similarly formed compression rings 11. The springs 3 are each enclosed by a sleeve 7<SP>1</SP> or 7<SP>11</SP> and urged together by bolts 13 acting on and distributed peripherally around thrust collars 12 and engaging threaded bores in the sleeves; threaded pins 14 extend through the bolts and hold the sleeves together. In a final embodiment, a split retaining-ring is associated with each thrust collar to prevent inadvertent separation of one or both tubes from the union. Examples are given of the materials from which the springs may be made.
Patent GB-723361-A (GB)
Title: Improvements in and relating to the manufacture of soap tablets
Inventor: LEADLEY SYDNEY
IPC: C11D13/10
Filed: 1952-05-24
Abstract: In the manufacture of soap tablets, partially dried soap is subjected to such action as will convert or partially convert it from the a -phase to the b -phase, water then added to it and the mass is mixed and formed into tablets.  The conversion to the b -phase may be effected by milling or plodding or both.  The original partly dried soap may have a fatty acid content of from 75 to 80 per cent, and about one-fifth of its weight of water may be added.  The soap with added water may be further milled or plodded or both before stamping into tablets.  A proportion of sodium carboxy methyl cellulose may be added with the water, preferably as a solution containing not less than 5 per cent. Alternatively a small amount of silicate of soda may be added with the water.  Colour and perfume may be mixed with the soap before it is first milled or plodded.
Patent GB-949716-A (GB)
Title: Composition for diagnosing glucose
IPC: C12Q1/54
Filed: 1961-04-12
Abstract: Diagnostic compositions for glucose comprising an enzyme having glucose oxidase activity, a substance having peroxidase activity, an indicator which is oxidized with colour change in the presence of hydrogen peroxide and said peroxidative substance are characterized by the presence as stabilizer of sodium alginate or carrageenin or gum guar.  Specified oxidase enzymes, peroxidative compounds, indicators and other components are the same as those in Specification 911,181.  In addition (a) it is stated that sodium and other molybdates may be used alone as peroxidative substance, (b) in an example, gallic acid is present as an antagonist substance changing the range in which the colour change takes place, (c) ethanol is used to dissolve the indicator, methanol, propanol, i-propanol and acetone being alternatives, and (d) glutamic acid, glycine and polypeptides are mentioned as alternatives to gelatin. The composition may be in the form of a tablet, powder or impregnated bibulous strip.  Specifications 575,612, 784,548, 808,742, 831,804, 843,221, 855,013, 867,192, 880,526, 883,744, and 886,778 also are referred to.
Patent GB-552650-A (GB)
Title: Improvements in or relating to neutralised high-frequency amplifiers
IPC: H03F1/08
Filed: 1941-10-14
Abstract: 552,650. Valve amplifying circuits. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Oct. 14, 1941, No. 13229. [Class 40 (v)] In a neutralized high frequency amplifier for short waves the lead connecting the cathodes is as short as possible and the input circuit is connected to such points in the leads connecting the neutralizing condensers to the grids that the ratio of the inductances in the grid and cathode circuits is equal to the ratio of the anode-cathode to anode-grid capacities of the valve. Fig. 3 shows the arrangement and Fig. 4 a substitution diagram. The neutrodyne condensers Cn are so adjusted that 1/w Cag : (w Ln-1/w Cn) = 1 /w Caf : (wLf-1/w Caf) which ensures that a voltage across the output circuit II does not produce voltage across G, F1 and G, F2 respectively. The input circuit I is connected to points P1 P, so chosen that Lg1 P, : ¢ Lf= 1 /Cag in which Lg1 P1 represents the inductance between the grid and the point P, so that the input circuit is not affected by voltages across the output circuit II. A valve with two connections to the input grid may be used. Specification 383,545 is referred to.
Patent GB-435982-A (GB)
Title: Improvements in and relating to electric motor drives for centrifugal machines
IPC: H02P1/26
Filed: 1935-05-03
Abstract: 435,982. Centrifugal machines. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. May 3, 1935, No. 13241. Convention date, May 3, 1934. [Class 23] The electric motor of the short-circuited rotor type for driving a centrifugal machine is slowed up during the filling operation by the automatic insertion of a single phase stator resistance. Current is supplied to the motor 5 through a switch 2 and contacts 1, 6. When the motor has attained a predetermined speed a contact 7 closes and a mechanical filling trough 10 is set in operation by an electrohydraulic apparatus 13. On the turning down of the trough 10 a contact 12 sets a time relay 14 and a contact 11<1> opens contact 6 and inserts the stator resistance 4. At the end of the filling operation the relay 14 actuates the apparatus 13, the trough is lifted, the contact 11<1> is opened and the contact 6 is closed. After any predetermined centrifuging time, the motor is stopped by a contact 12a and time relay 18. The latter also operates a band brake 16. The electric brake drive 17 is reversed to release the brake after the stoppage of the motor by a motor contact 8 and reversing contactor 19. A contact 21 allows the motor to be restarted by the switch 2 only on the release of the brake which is indicated by a green lamp 22. In a modification the centrifuging time is regulated in accordance with the colour of the light reflected from the material, the reflected light being directed on to a photoelectric cell.
Patent GB-133059-A (GB)
Abstract: 133,059. Forwood, G. F., and Taplay, J. G. Dec. 22, 1916. Mineral oils, purifying &c.-Hydrocarbon oils are hydrogenated, cracked, or treated for the removal of sulphur by bringing their vapours mixed with steam at temperatures between 450 and 600‹ C. into contact with a form of carbon that is capable of decomposing steam with the production of nascent hydrogen at those temperatures. The forms of carbon used include lampblack, soot, charcoals derived from wood, cellulose and lignite, and carbons obtained by carbonizing oil residues and other organic bodies at temperatures below 600‹ C. The process is applied to the treatment of coal oil, shale oil, petroleum and lignite oil. In examples, cracked spirit is hydrogenated at 500‹ C., and shale spirit is desulphurized at 530‹ C. The products are led to a condenser and thence to a scrubber where they are washed with creosote oil. After desulphurization, the products are washed with dilute caustic soda to remove sulphuretted hydrogen.
Patent GB-1460173-A (GB)
Title: Method and apparatus for non-consumable electrode type auto matic arc welding
IPC: B23K9/073
Filed: 1974-03-26
Abstract: 1460173 Welding by fusion KOBE STEEL Ltd 26 March 1974 [26 March 1973 28 March 1973] 13315/74 Heading B3R [Also in Division G3] Automatic non-consumable electrode arc welding apparatus suitable for overhead TIG welding, includes a pair of welding electrodes 40 each fed with filler wire from a reel 83 by feed mechanisms 82. The wire feed rate is controlled in accordance with measurements of the voltage between each welding electrode and the associated filler wire, and the arc length is controlled by measuring and regulating the arc voltage. In addition each welding head includes housings b1, b2 containing weaving or oscillating mechanisms, Fig. 15 (not shown), an arrangement for ensuring that the welding electrode follows a desired path 84 using a photoelectric device 94 following a marked line 93 and a device for keeping the welding head a constant distance from the workpiece using a differential transformer 98 with a roller contacting the workpiece.