baber/WOPTO huggingface dataset:
Patent GB-1138997-A (GB)
Title: Magnetic data storage
IPC: G02F1/09
Filed: 1967-03-10
Abstract: 1,138,997. Magneto-optical recording &c. apparatus. INTERNATIONAL BUSINESS MACHINES CORP. 10 March, 1967 [8 April, 1966], No. 11272/67. Heading G5R. A magnetic data storage medium comprises a glass substrate 2 bearing a transparent magnetizable film 6 having a high Verdet constant such as europous chalcogenides or garnets so that information stored in film 6 as magnetized areas can be detected by the rotation of the plane of polarized light passing through the film. A thin dielectric layer 8, e.g. silicon monoxide, is formed on the film 6. A dichroic mirror 4 is provided between the glass substrate 2 and the film 6. A conventional magnetic write head 1 records bits of information as localized fields M in film 6. The record may be played back by the Faraday effect, a laser source or any other form of polarized light 10 being directed at a moving film 6 and analysed, after traversing film 6 and repeated reflection from surfaces 4, 8 by an analyser 14 which transmits light having a predetermined plane of polarization. A photo-cell 16 senses this transmitted light and a recording instrument 18 indicates its presence.
Patent GB-708439-A (GB)
Title: Improvements in and relating to stereoscopic optical projection
IPC: G03B35/20
Filed: 1951-05-15
Abstract: 708,439. Stereoscopic optical projection. WILLIAMSON MANUFACTURING CO., Ltd. (Jackson, K. B.). May 15, 1952 [May 15, 1951], No. 11335/51. Class 97(1) A stereoscopic pair of pictures is projected on to a screen and a third image projected in such a way as to be adjustable on the screen and to be visible to both eyes of an observer e.g. in anaglyphic projection the third image is projected by white light. As shown, the projectors 1, 2 are carried on tables 5, 6 each having underneath at 8 a ball ended pivot resting in a socket on the base 7. A screw 21 is threaded into the front end of each table and the lower end rests on the base 7 without constraint. A screw 11 is threaded into the rear of each table and its lower end rests in a groove in one of two blocks 12, 13 engaging oppositely screw threaded parts of a rod 15 with handwheel 19. The smaller image is produced by a projector 4 having a universal mounting on a tripod 24 and being adjustable by a handle 25. The apparatus may be used for training stereoscopic vision.
Patent GB-113587-A (GB)
IPC: B44B5/00
Abstract: 113,587. Burgess, W. B., Burgess, C. E., and Eldridge, J. E. Nov. 17, 1917. Tools.-In knurling cylindrical articles, one or more small central ribs A are formed around the article, before submitting it to the knurling operation, by a tool having corresponding notches B in the cutting edge.
Patent GB-589281-A (GB)
Title: Improved means for damping torsional vibrations
IPC: F16F15/10
Filed: 1943-07-13
Abstract: 589,281. Motor power plant. CORBITT, R. W. July 13, 1943, No. 11362. [Classes 110 (i) and 110 (iii)] [Also in Groups XXVII and XXXII] In an aero-engine particularly of, the fuel injection type having a crank-shaft 1 driving a propeller 4, in order to damp torsional vibration in the crank-shaft and its connection to the propeller, a centrifugal supercharger 5 is driven from the crank-shaft solely through a free-wheel clutch 8 so as to permit the supercharger to over-run the crank-shaft, and/or the whole power output of an exhaust turbine 9 is transmitted to the crank-shaft through a free-wheel clutch 11 arranged to permit the crank-shaft to over-run the turbine. As shown, the crank-shaft drives the propeller 4 through reduction gearing 2,. 3 and the supercharger through speed-increasing gearing 6, 7, the drive to the supercharger being stiffer than the drive to the propeller so that the clutch 8 operates before any torque reversal in the drive to the propeller. The turbine 9 is connected to the crank-shaft through gearing 10, 6 and the clutch 11 is arranged oppositely to the clutch 8 so that the crank-shaft can over-run the turbine. Hence, when the driving speed is affected by torsional vibration, the damping effect is produced by the supercharger varying the load on the engine or by the turbine providing a variable supply of additional power to the crank-shaft.
Patent GB-566403-A (GB)
Title: Improvements connected with scaffold brackets or the like
IPC: E04G5/04
Filed: 1943-07-14
Abstract: 566,403. Scaffold brackets. FREEMAN, C. H. July 14, 1943, No. 11412. [Class 20 (ii)] [Also in Group XIV] A scaffold holding bracket comprises an inverted T-section 5 driven into a brickwork joint by hammering on an enlarged part 8 formed thereon. The T-section is tapered at 6 and the vertical web 7 enters a vertical joint in the brickwork. The scaffold boards lie on an L-section piece 10 which is pivoted at 9 so it can be adjusted to the level and held there by a peg 13, fitted into one of the holes 12 in a vertical member 11.
Patent GB-886193-A (GB)
Title: Improvements in snares for drums and like percussion musical instruments
Inventor: PORTA ALBERT CLAUDE DELLA
IPC: G10D13/02
Filed: 1959-04-03
Abstract: 886,193. Drums. PREMIER DRUM CO. Ltd. Feb. 20, 1960 [April 3, 1959], No. 11429/59. Class 88 (2).  A snare is carried by a bar which is carried by damping means mounted on the drum shell. As shown in Fig. 1 the snare 2 is carried by arms 4 pivoted on a bar 7 and having tension screws 10. The bar 7 is mounted in the drum wall in collars 8 of rubber, plastics material or felt. The levers 4 may be replaced by the twoposition hand-operated lever 22 shown in Fig. 4. To mount the snare inside the drum the tensioning arrangement of Fig. 3 may be used in which one end of the snare is mounted on a sliding arm 20 propelled by screw 18 while the other end of the snare is carried by an arm such as 20 but fixed to the bar 7. Another way of mounting the snare inside the drum is shown in Fig. 2 where the bar 7 is mounted in shock-absorbent pads 11 and the snare is tensioned by a pivoting arm 15 and a screw 18.
Patent GB-129452-A (GB)
Title: Improvements in Apparatus for Weighing Liquids or Semi-liquids.
IPC: G01G13/00
Filed: 1918-07-13
Abstract: 129,452. Avery, W. & T., Burrows, J. J., and Walters, E. July 13, 1918. Automatic-feed weighers.-In an automatic-feed weigher for liquids or semi-liquids, the material passes from a main supply tank 1 down a pipe 2 and through a main feed valve 5 to the weighing-receptacle. The main supply tank is also connected by a pipe 2<a> to a supplementary or dribble tank 3 provided with a pipe 4 through which the liquid overflows to the weighing-receptacle. The first movement of the scale closes the valve 5 in known manner and also operates a three-way valve 6, thus shutting off the supply to the tank 3 and opening a passage from the tank 3 to the weighing-receptacle. A dribble feed of constant speed and pressure is thus obtained, The weighing is completed in known manner,
Patent GB-1237632-A (GB)
Title: Ethylene and acrylate esters, their preparation and their use as wax crystal modifiers
Inventor: TUNKEL NORMAN
IPC: C10L1/196
Filed: 1969-03-04
Abstract: 1,237,632. Dewaxing oils; pour point depressants. ESSO RESEARCH & ENG. CO. 4 March, 1969 [1 April, 1968], No. 11513/69. Headings C5E and C5G. [Also in Division C3] Copolymers particularly useful as wax crystal modifiers for dewaxing or depressing the pour point of petroleum oils, have a M.W. of 1000- 50,000, comprise at least 80 mole per cent of a mixture of ethylene and acrylate in a relative mole ratio of 4 to 40 molar proportions of ethylene per molar proportion of acrylate of the formula CH 2  = C(X)Y wherein X is hydrogen or methyl and Y is-COOR wherein R is a C 1  to C 16  alkyl group, and are prepared by copolymerizing ethylene and the acrylate in an inert hydrocarbon solvent with a free radical type polymerization catalyst, under a pressure above 2000 p.s.i.g., and up to 50,000 p.s.i.g. The copolymer may include up to 20 mole per cent of a third or even a fourth monomer (specified). Examples are directed to the preparation of copolymers of ethylene and ethyl or isobutyl acrylate using di-t-butyl peroxide or di-lauroyl peroxide as catalyst and benzene (or hexane) as solvent. 0À001-2À0% by weight of the copolymer is added to petroleum distillate oil boiling in the range of 250-750‹ F. such as heating oil and diesel fuel oil as a pour depressant. 0À05% by weight of an ethylene-ethyl acrylate copolymer was added at 150‹ F. to hexane/oil (ratio 3À5/l) and the resulting mixture was chilled at the rate of 2‹ F. per minute down to -30‹ F. Wax was then removed from the chilled mixture by filtering through a leaf filter. The oil containing the 0À05 wt. per cent polymer was found to filter faster than the untreated oil.
Patent GB-1453506-A (GB)
Title: Manufacture of succinimide
IPC: C07D207/40
Filed: 1974-03-15
Abstract: 1453506 Succinimide BASF AG 15 March 1974 [17 March 1973] 11580/74 Heading C2C Succinimide is prepared by reacting succinic acid with aqueous ammonia in the presence of a preferably minor quantity (e.g. 0À5 to 1À5% by weight) of tertiary ammonium phosphate.
Patent GB-497536-A (GB)
Title: Improvements in centrifugal hydro-extractors
IPC: B04B3/04
Filed: 1938-04-14
Abstract: 497,536. Centrifugal hydro-extractors. CASAGRANDE, A. April 14, 1938, No. 11601. Convention clate, April 15, 1937. [Class 23] A centrifugal extractor, particularly for dehydrating textile fibres, has a truncated conical basket 3 and an internal rotor 4 with helices to move the fibres through the basket : the angle of slope between each of the surfaces of the basket and the rotor with the axis is between eighteen degrees and thirty-five degrees, according to the nature of the fibres, so that these are not held on to the surface by friction. The basket and the rotor have different angles of slope so that the space between them is wider at the top than at the bottom ; they are driven at different speeds through gearing in the gear box 9. The fibres are fed in through the hopper 2 and they are prevented from settling on the tops of the helices by teeth 6 fixed inside the top of the basket 3. They are also prevented from settling on the arms of the spider 5 at the exit of the basket, by a projection 7 at the lower end of each helix. The liquid extracted from the fibres passes through the basket wall to the container 8 and the dried material passes downwards.
Patent GB-403685-A (GB)
Title: Improvements in acoustic diaphragms and method of making the same
IPC: H04R7/14
Filed: 1932-04-22
Abstract: 403,685. Diaphragms. HAWLEY, J. B., 200, East Batavia Road, Geneva, Illinois, U.S.A. April 22, 1932, No. 11651. [Class 40 (iv).] A seamless acoustic diaphragm is formed from fibrous material by submerging a porous contoured former in a water bath of suspended fibres, such as pulp fibres, the fibres being caused to acerete, interlace and integrate on the surface of the former by forcing the water through the pores or apertures in the former. After such deposition, the former is raised from the bath and the wet blank on it removed, dried and suitably treated. The Figures show suitable forms of diaphragm, those shown in Figs. 1, 3 and 8 being of uniform thickness or tapered in thickness from the apex to the periphery or vice versa. The diaphragm may also be flat and the outline instead of being circular may be polygonal, oval or elliptical. Different areas of the diaphragm may also be made of varying density. The surrounding annular flange portion is made flexible to afford freedom of movement of the cone or the juncture of the cone portion and the rim portion may be made thinner than the cone portion or in the form of a groove. Specification 293,912, [Class 87 (ii), Moulding plastic &c. substances], is referred to. Reference has been directed by the Comptroller to Specification 399,165.
Patent GB-1379282-A (GB)
Title: Removal of burrs from butt-welded rod lengths of equal cross- section especially chain links
IPC: B21L15/00
Filed: 1972-03-13
Abstract: 1379282 Deburring chain links MEYER ROTH & PASTOR MASCHINENFABRIK GmbH 13 March 1972 [11 March 1971] 11699/72 Heading B3L A device for deburring a chain link comprises a cutter fork 11 which is displaceable in the direction 15 of the link leg axis and has cutters 13 movable at right angles to the central plane of the link, each cutter extends over half the link circumference. In operation the fork is moved so that the cutters are adjacent weld ridge 10-the dotted lines of Fig. 2. The fork is now pivoted about axis 18 so that one of the cutters moves to an operative position. Feeding of the fork removes half the weld ridge. Pivoting of the fork in the reverse direction and reverse feed removes the rest of the weld ridge. The movement of the fork and the construction of the cutters could be such as to allow cutting in one direction only. This would mean two further movements of the fork.
Patent GB-953770-A (GB)
Title: Improvements in road rollers
IPC: E01C19/26
Filed: 1962-03-27
Abstract: 953,770. Road rollers. BOMFORD & EVERSHED Ltd., and J. V. FOX. Feb. 19, 1963 [March 27, 1962], No. 11701/62. Heading A1B. To enable a tricycle roller to roll when travelling in a path of substantial curvature without leaving unrolled portions between the rear rollers 11, the front roller 15 is movable around an axis 18 between the front and rear rollers and the width of the front roller 15 is such that when turned by at least 10‹ from the straight ahead position the front roller covers the area left unrolled between the rear rollers. As shown the front roller 15 is mounted in a frame 22 pivotably mounted on a pin 20 attached to a frame 16 pivoted on the axis 18. Two hydraulic jacks 26 move the frame 16 to steer the roller.
Patent GB-1118499-A (GB)
Title: Method of preparing camphene
Inventor: VYRODOV VIKTOR ANTONOVICH
IPC: C07C5/29
Filed: 1966-03-17
Abstract: Camphene is obtained by isomerizing pinene (e.g. a mixture of a - and b -pinenes) in the vapour phase in admixture with an inert gas (e.g. N2) and in the presence of a catalyst in suspension. Suitable catalysts are TiO2, boric acid, salicylic acid, picric acid or activated clay, and the carrier may be a terpene, e.g. camphene itself. The reaction temperature may be 100-160 DEG  C. and the process may be continuous.
Patent GB-543313-A (GB)
Title: Improvements in thread tensioning devices
IPC: D04B15/48
Filed: 1940-07-16
Abstract: 543,313. Yarn tensioning. TOONE, H. B. S., and TOONE, H. S., (trading as TOONE & CO., B.), and TOONE, R. N. July 16, 1940, No. 11749. [Class 74 (ii)] Relates to improvements in yarn tensioning devices with particular but not exclusive reference to circular knitting machines. In one form, for controlling three independent yarns 24 ... 26 simultaneously, a cup or socket member 27 houses a ball 29, which is capabe of limited rotary movement in all directions. The ball projects below the socket and is provided with a vertically depending rod 39 carrying an adjustable weight 40. A stem 30 projecting vertically upwards from the ball carries a collar 31 and three equi-angular yarn tensioning arms 32 ... 34. The three yarns 24 . . . 26 each pass through two fixed eyes 36 and one movable one 35. If now the tension of, say, yarn 24 increases, arm 32 drops and arms 33. 34 rise against the pull of the weight 40, thereby increasing the tension of yarns 25, 26 until the tension of all three yarns is equalised. Similarly if the tension of one yarn decreases. Another form of device, for equalising two yarns, resembles a weighing scale beam.
Patent GB-492918-A (GB)
Title: Improvements relating to means for fixing stair runners
IPC: A47G27/06
Filed: 1937-04-26
Abstract: 492,918. Stair-carpet holders. GRAY, C. S. April 26, 1937, No. 11842. [Class 52 (v)] Stair carpets 5 extending from tread to tread are fastened by rods 1 engageable with selected loops or pockets 4 arranged on the underside of the carpet, the rods cooperating with hook-like fittings 2 on the stair framework and being completely hidden by the carpet. The loops may be constituted by tapes extending the length of the runner and secured by stitching at intervals. The hooks 2 are swingably mounted on the fixing screws 8.
Patent GB-275130-A (GB)
Title: Improvements in wireless receiving or transmitting apparatus
IPC: H04B1/16
Filed: 1927-05-04
Abstract: 275,130. Kindler, W. May 4, 1927. No Patent granted (Sealing fee not paid). Thermionic detectors and amplifiers.-The plate supply for a wireless receiving set is tapped at 4, 5 and 6 from an openended resistance, 3 connected to the positive terminal 2 of a direct-current power supply, no direct connection being made from the negative main 7 to the set. This is stated to eliminate hum, or generator noise, and to prevent any risk of the valves being burnt out.
Patent GB-399426-A (GB)
Title: Improvements in inking mechanism for rotary letter press printing machines
IPC: B41F31/00
Filed: 1933-04-24
Abstract: 399,426. Printing. MASCHINENFABRIK WINKLER, FALLERT. & CO. AKT.-GES., 35, Wyleringstrasse, Berne, and KLIMROTH, M., Wabernpark, Wabern, near Berne, Switzerland. April 24, 1933, No. 11903. [Class 100 (ii).] Inking - mechanism. -In inking-mechanism for rotary letterpress printing- machines having a large distributing- drum g around which all the composition rollers belonging to the distributing and plate-inking mechanism are grouped, th ink layer coming from the ink fountain a is preliminarily distributed bv a chain of composition rollers b, d, f and steel rollers c, e, by which it is applied to the distributing-drum g, and around the .circumference of the latter are provided several ink-distributing groups each consisting of at least two composition rollers h, i or k, l, co-operating with the drum g, and of one steel roller m or n riding on the composition rollers, and also the plate-inking rollers o, p. The drum g is hollow, and is cooled by passing water or the like through a hole in the shaft into the drum. The roller b may be vibrated.
Patent GB-788538-A (GB)
Title: Improvements in or relating to heat-conduction manometers
IPC: G01L21/12
Filed: 1954-04-26
Abstract: 788,538. Heat conduction manometers. HERAEUS GES., W. C. April 26, 1954 [April 25, 1953; Nov. 27, 1953], No. 12001/54. Class 40 (1). In a heat conduction manometer comprising a casing 7 containing a sealed measuring chamber 8 communicating only with the pressure chamber and a similar reference chamber 9 containing gas at constant pressure, the chambers each contain a small semi-conductor bead supported by thin electrodes. The beads 1a, 1b form the measuring and reference arms respectively of a Wheatstone bridge which is provided with a positive temperature coefficient resistor 20 in parallel with the bridge instrument to compensate for changes in ambient temperature. Through each of electrodes 2a, 2b, which are preferably of Pt or Pt alloy not more than 25 thick and circa 25 to 50 mm. long, heat conduction is less than 4 x 10<SP>-7</SP> cols./‹ C. temperature difference between its ends, and thus no greater than the heat loss through the gas the variations of which with pressure make the measurement possible. The casing 7, e.g. of brass or Cu which may be water cooled to maintain its temperature constant, is fixed to a flange 6 having a hole communicating with vacuum chamber 23. To stop bead poisoning and electrode corrosion any vapours present in the chamber are condensed on cooled baffles in the communication hole. The other bridge resistors may be external to or contained within the casing 7. Compensation for variations in sensitivity and of the zero point with such changes in ambient temperature as may occur may be effected by placing positive temperature coefficient resistors, e.g. 18 and 19, in the other bridge arms in series with the normal balancing resistors 14, 15 which may also have positive temperature coefficients and making one, 18, adjustable; by a temperature sensitive resistor 22 in series with the bridge instrument; by a negative temperature coefficient resistor 21 in the supply line of the bridge; or as shown by a combination of all these methods. In an alternative arrangement, the bridge instrument is replaced by an amplifier to permit of indication at a remote point.
Patent GB-118326-A (GB)
Title: Improvements in Motor Vehicles.
IPC: B62D61/08
Filed: 1917-08-23
Abstract: 118,326. Coventry Premier, Ltd., and Funck, G. Aug. 23, 1917. Spring devices.-Relates to the chain casing, chain adjustment, and rear-frame spring suspension of a n,otor - cycle or like vehicle having a chaindriven rear driving- wheel. The driving- wheel B is mounted in the rear end of an horizontal tubular H-frame A, the front end being formed as eccentric straps A<1> enclosing eccentric sheaves C, whereby the frame is pivoted on trunnions D' upon a gear-box D. T h e transverse driving-shaft 0 extends through one of the trunnions and is connected to the usual chain and sprocket gear K, J. The chain casing consists of a plate I mounted on brackets A<2> on the frame and having a flanged dished cover I', the forward end of the plate being carried by the adjacent eccentric sheave. The sheaves are rotated to adjust the tension of the chain by means of suitably actuated arms C, after the straps have been slackened. The rear frame is completed by a yoke T pivoted respectively to the rear ends of the H- frame and to the arms of the cantilever springs S, the front ends of which are clamped to a tubular cross-member Q of the main frame.
Patent GB-1207430-A (GB)
Title: A method for purifying ungeltinised starch derivatives
Inventor: TUSCHOFF JOHN VINCENT
IPC: C08B31/12
Filed: 1968-11-25
Abstract: 1,207,430. Purifying hydroxyalkylated starches. A. E. STALEY MFG. CO. 25 Nov., 1968 [8 Jan., 1968], No. 12127/70. Divided out of 1,207,429. Heading C3V. A process for purifying an ungelatinized cold water-soluble or cold water-swelling hydroxyalkylated starch material (as defined) comprises washing the starch material in a mixture of water and a monohydric alcohol maintained at a pH below 7 for a time sufficient to remove substantially all undesirable contaminants from the starch material, the water and the alcohol being present in the mixture in a weight ratio of from 0À1:1 to 0À7:1; and thereafter separating from the mixture the purified starch material. Suitable monohydric alcohols are methanol, ethanol &c. The starches used may be modified, e.g. cross-linked, acid-thinned, oxidized &c.
Patent GB-552028-A (GB)
Title: Improvements in and relating to domestic washing machines
IPC: D06F13/02
Filed: 1941-09-19
Abstract: 552,028. Washing and drying machines. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 19, 1941, No. 12143. Convention date Sept. 21, 1940. [Class 138 (ii)] A washing-machine for washing and centrifugally drying clothes in a single tub adapted to be rotated selectively at different speeds has means for introducing rinsing liquid to the tub and a device responsive to the speed of rotation of the tub for preventing the inflow of rinsing liquid during the high speed rotation. The oscillation for the agitator for washing and rotation for drying, for example, by apparatus such as described' in Specification 452,402, is effected by a two-speed electric motor with armature 7 and high and low speed windings 8 and 9. For washing, the tub being filled with water through valve 65 and nozzle 64, and the pump inlet 47 being open, the control knob 30 is turned to put the rack 19 in gear to oscillate the shaft 5, the wash water spilling over and being returned by the pump 48 through the filter ring 53. To dry, valve 47 is closed and the knob 30 rotated to disengage the rack and to clutch in the high speed drive 28, 29, and the expelled water is drained by valve 60 and 61, to the casing floor. After drying, rinsing is started by pulling out the knob 30, which switches over by contact arm 71, Fig. 3, from the high speed to the low speed armature 9 and opens the rinsing water drain 62, and when the speed has fallen sufficiently to close contact 84 the rinsing water inlet valve 67 is opened, thus avoiding damage to the clothes from impact of the rinsing water.