baber/WOPTO huggingface dataset:
Patent GB-1523643-A (GB)
Title: Data reading apparatus
IPC: G06K7/10
Filed: 1975-07-23
Abstract: 1523643 Bar code reader MITSUBISHI DENKI KK 23 July 1975 [21 Aug 1974 8 Jan 1975 (3)] 30881/75 Heading G4M [Also in Division H4] A reader for bar codes, e.g. on labels has a television camera the scanning direction of which is rotated. The camera has circuits causing the rotation. The camera has two pairs of deflecting coils with one coil of each pair at 90 degrees relative to the other coil of each pair. Two horizontal deflecting coils 81, 83 and two vertical deflecting coils 82, 84 may be provided (Fig. 9). An envelope signal generator 48 generates a sine wave (Fig. 5A) and a generator 47 generates pulse trains determining the scanning period of the horizontal deflection (Fig. 5B). The sine wave feeds positive and negative detection circuit 49 which produces a signal Fig. 5C on line 402 and Fig. 5D on 403. These lines enable gates 50, 51 to produce on lines 405, 406 signals Fig. 5E, Fig. 5F respectively. These signals operate gates 52A, 52B, 53A, 53B to selectively connect junction 507 to zero potential so that a series of pulses are applied to capacitor 43 and are integrated to produce signal Fig. 5H at deflection coil 41. This signal is applied to one of a pair of coils and a similar signal phase shifted 90 degrees is applied to the other coil of the pair. A similar pair of signals having a different pulse frequency is applied to the other pair of coils (Fig. 11, not shown).
Patent GB-667060-A (GB)
Title: Improvements in apparatus for dressing potatoes or other vegetables or fruit
IPC: B26D3/18
Filed: 1949-12-02
Abstract: 667,060. Removing eyes from potatoes. DARLING, J. Nov. 17, 1950 [Dec. 2, 1949], No. 30979/49. Class 28 (ii). Potato eyes or hard cores of vegetables &c. are removed by pressing the potato against a countersinking boring bit 5, 6 provided with a collar 8 to limit the depth of the cut. The bit is secured to an electric motor spindle and is normally sheathed within a guard tube 10 having a spring pressed abutment 12 which recedes on hand pressure of a potato to expose the bit. The tube 10 is slidable in the boss 11 of a conical guard 9.
Patent GB-994520-A (GB)
Title: Emulsion polymerisation process for ethylene
IPC: C08F10/00
Filed: 1962-08-13
Abstract: A fluid, reactor-, strip-, shelf- and mechanically-stable anionically emulsified latex of oxygen- and sulphur-free polyethylene is produced by continuously introducing at, e.g. 80-95 DEG  C. and 2000-5000 p.s.i., into a reactor, ethylene and a mixture of water, up to 15 parts t.-butanol, a persulphate initiator, e.g. 0.08-0.3 parts, a pH adjuster to maintain the pH of the mixture above 10, and an emulsifier which is a salt of a C12- 18 saturated fatty acid e.g. 2-5 parts, (parts being per 105 parts of mixture), and continuously withdrawing unconverted ethylene and the latex. The latex may be stripped, e.g. by evaporation from a moving film, to give a fluid latex containing up to 60% of emulsified polyethylene by removal of water and any t.-butanol. The pH adjuster may be tri-potassium phosphate, the initiator may be potassium persulphate and the emulsifier, which may be formed in situ, may be potassium myristate.
Patent GB-712614-A (GB)
Title: Improvements in or relating to variable pitch marine screw propellers
Inventor: HARVEY GEORGE COLLINS
IPC: B63H3/04
Filed: 1950-12-20
Abstract: 712,614. Variable pitch marine propellers. SLACK & PARR (MARINE), Ltd. Dec. 20, 1951 [Dec. 20, 1950], No. 31000/50. Class 114 In a variable pitch marine propeller whose pitch is varied by a member arranged coaxially of the propeller shaft, the axial thrust on the member resulting from the twisting loads on the propeller blades is taken by a thrust bearing carried by a fixed element which also carries a second thrust bearing for taking the thrust of the propeller shaft. The pitch is adjusted by a rod 10 slidable in a hollow propeller shaft 11 and rotatable therewith by means of a pin 12 passing through an elongated slot 9 in the shaft. The pin is secured to a sleeve 14 slidable on the shaft and carrying the inner races 15 of a pair of taper roller bearings 16 which take the axial thrust on the rod 10. The bearings 16 are mounted in a cylindrical housing 18 formed with a screw thread 19 co-operating with a nut member 20 secured to a casing 21 which is rigidly attached to the hull of the ship and/or to the engine. The housing 18 carries a toothed gear 25 in mesh with a pinion 24 on a shaft 26 which is rotated manually for varying the pitch through a chain 28 and sprocket 27 or alternatively it may be rotated by hydraulic or electric power. The casing 21 carries a second pair of taper roller bearings 30 for taking the thrust on the propeller shaft 11 and is formed as an oil reservoir to facilitate lubrication of the mechanism enclosed therein. In another embodiment the housing 18 is secured to the casing whilst the nut is rotated by the shaft 26 and carries a single ball bearing for taking the thrust on the rod 10. In a further embodiment the propeller shaft is formed in parts connected together by flanged couplings and the thrust thereon is taken by a double thrust taper roller bearing carried by the casing 21. The thrust bearing taking the thrust on the rod 10 is axially spaced from the forward end of the latter and is connected thereto by three thrust rods disposed around the axis of the shaft.
Patent GB-678126-A (GB)
Title: Improvements in or relating to filters
Inventor: FUHRMEISTER CHARLES HENRY
IPC: B01D33/00
Filed: 1950-12-20
Abstract: 678,126. Rotary filters. OLIVER UNITED FILTERS, Inc. Dec. 20, 1950, No. 31009/50. Class 46 In a rotary table type of filter in which a filter section is arranged to travel in a closed path through a feed zone 61, Fig. 3, in which the slurry to be filtered is flowed on to the screen 8 as by a feed distributer, a cake-forming zone in which the slurry is subjected to a differential filtering pressure or suction; and a cake discharge zone in which the upper layer of the cake 45 formed on the section is removed as by the rigid lip 41 and discharged as by a paddle wheel 58 into the discharge trough 37; blowback pressure is applied at a point intermediate the feed zone to disintegrate the lower strata 44 of cake and repulp it with the slurry being fed to the filter section. To this end in a sectionalized table filter an automatic filter valve is connected to each filter section and includes a stationary valve body 17, Fig. 8, having a port 63 communicating with a source of superatmospheric pressure and ports 64, 65, 66 communicating with a source of suction. A wear plate having a series of ports each connected to a filter section and registering with the channel 68 rotates in phase with the filter. The wear plate port of each filter section puts the section under suction when the port is in registration with channel 68 but is blanked off periodically as it passes over bridges 69 and 71 during which times the filtering action of the section is subject only to the influence of gravity and when the port passes between bridges 69 and 71 the section is subject to a blow-back pressure which is arranged to occur as the section passes through the feeding zone.
Patent GB-310264-A (GB)
Abstract: 310,264. Laing, C. A., and Laing, A. J. A. Dec. 27, 1928. Mudguards rotating with wheels. - In a tyre having side flanges A spaced from the tread F and normally clear of the ground, to prevent side-splash, the flanges are formed with vertical outer faces B, converging inner faces C, and flat peripheries E.
Patent GB-319964-A (GB)
Title: Improvements in or relating to rope or cord
IPC: D07B1/02
Filed: 1928-10-26
Abstract: 319,964. Turner, C. A. Oct. 26, 1928. Ropes made by special methods.-A rope or cord is formed of a core of manilla, sisal, jute or like cheap fibrous material and a braided cover of material such as cotton. The core 2 comprises a number of strands 4, each formed of twisted fibres, disposed parallel to one another, and the strands 6 of the cover 3 extend in the same spiral direction as the twisted individual strands 4, but at a wider angle to the core.
Patent GB-1015229-A (GB)
Title: Improvements in leakage flux suppressors for transformers and the like
IPC: H01F27/36
Filed: 1964-08-04
Abstract: 1,015,229. Transformers. MASCHINENFABRIK OERLIKON. Aug. 4, 1964 [Aug. 13, 1963], No. 31072/64. Heading H1T. A transformer or other apparatus is provided with magnetic members 2 (Fig. 1) which provide a high permeability path for leakage flux and are arranged to surround the axes of the core limbs 4, 5 and 1, to abut the yokes. The laminations of the members 2, 2 (Fig. 2, not shown), may be secured together by tape, bolts or synthetic resin bonding and they may be arranged in line with the space between the primary and secondary windings 6, which are provided with independent compressors 12, 13, The lower member 2<SP>1</SP> may be embedded in an insulating spacer and the members 2, 2<SP>1</SP> may have their edges rounded and insulated. The edges of the members 2, 2<SP>1</SP> may be shaped to fit closely or approximately to the yokes (Figs. 3a-4b, not shown).
Patent GB-726415-A (GB)
Title: Improvements in or relating to chimney pots
IPC: F23L17/02
Filed: 1953-11-10
Abstract: 726,415. Chimney pots. DREWES, F. J. J. Nov. 10, 1953 [Nov. 15, 1952], No. 31166/53. Class 25. A round chimney pot of concrete, burnt clay or the like has a dead air space 5 of constant width extending round the whole circumference and height of the pot and a protective cap member 10 of the same material as the pot and presenting an opening round substantially its whole periphery. The top wall 9 of the pot slopes downwardly from the inside of the pot, and the cap 10, concave towards the pot, is supported on three or four legs 11 provided with feet 12 projecting through the top wall 9 of the pot.
Patent GB-1206569-A (GB)
Title: Radiant-tube furnace
IPC: F27B9/06
Filed: 1969-06-20
Abstract: 1,206,569. Radiant tube furnaces. THERMO ELECTRON CORP. 20 June, 1969 [1 Aug., 1968], No. 31305/69. Heading F4B. In an industrial furnace having a generally horizontally disposed hearth for supporting work to be heat-processed and radiant tubes for providing heat, pairs of radiant tubes 38 form an inverted Vee over the hearth 22 with the angle subtended by the tubes of each pair lying between 28 and 70 degrees. As shown, flue gases leaving the radiant tubes 38 are fed into recuperators 59, the air pre-heated therein passing via tubes 60 to chamber 46 leading to burners 50. In another embodiment (see Fig. 3) a single arched radiant tube (138) is utilized.
Patent GB-1278685-A (GB)
Title: Web transport drive structure
IPC: G11B15/32
Filed: 1969-06-20
Abstract: 1278685 Reverse gear MINNESOTA MINING & MFG CO 20 June 1969 [21 June 1968] 31392/69 Heading F2D [Also in Division G5]  A spool-driving spindle assembly 17 is axially movable to bring its peripheral drive surface 84 into engagement with a drive surface 68 of a driving member 27. As shown, in a tape recorder in which the tape is wound on two spools (7, 8), Fig. 2 (not shown), in a cassette (5), movement of a lever 114 to either side tilts an arm 108 or 109 so that a spindle assembly 16 or 17 is lowered into driving engagement with respectively the outer surface 69 or the inner surface 68 of an upstanding peripheral flange on a flywheel 27 secured to a capstan 19.
Patent GB-1475132-A (GB)
Title: Torque transmission device
IPC: F16B21/20
Filed: 1974-07-17
Abstract: 1475132 Spring driven couplings; retarding apparatus MICROTECNICA SpA 17 July 1974 [1 Aug 1973] 31603/74 Heading B8B [Also in Division F2] A device for transmitting a torque from a motor (not shown) to a load 8, comprises a stationary drum 1 around which is wound a helical spring 2, a rotatable drive member 12 for connection to the motor and a rotatable load member 7 from which the load 8 is suspended by a rope 9. First and second transmission means 5, 6 are mounted on the end turns 3, 4 respectively of the spring 2, while first and second transmission members 13, 14 and 10, 11 are mounted on the drive member 12 and Toad member 7 respectively, and a friction member 15 is located in groove in each of the spring's end turns 3, 4 and acts between the bottom of the groove and the surface of drum 1. Because of the weight of the load 8 transmission member 11 co-operates with transmission means 6 of the spring 2 in a direction which causes tightening of the spring 2 about the drum 1, and because of the presence of the friction members 15 the turns of the spring 2 are all in engagement with the drum 1 as shown in Fig. 5 (not shown) so that the spring 2 exerts a braking action on the load member 7 and renders the latter stationary, as long as drive member-12 is inactive. If the motor (and) thus drive member 12) is rotated in the direction opposed to the torque applied by the load 8 the transmission member 14 is rotated anti-clockwise as viewed in Fig. 1 to engage transmission means 6 in a direction to slacken spring 2 so that the torque of the motor, reduced by the dragging torque of the spring, is transmitted to the transmission member 11 of load member 7 to rotate the latter. Conversely, if the motor is rotated in the direction of the torque applied by the load 8, the transmission member 13 is rotated clockwise and engages spring transmission means 5 in a direction to slacken spring 2, so that the braking torque of the spring 2 is made equal to the torque of load 8, and the latter is lowered without dragging the motor. As shown in Fig. 2, each friction member 15 is in the form of a corrugated blade.  If the load 8 is slung from the load member 7 in the sense opposite to that shown in Fig. 1 the roles of the transmission members 13, 14 are the reverse of those set out above.
Patent GB-341539-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B60T15/04
Filed: 1929-10-18
Abstract: 341,539. Fluid-pressure brakes. WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London.-(Assignees of Farmer, C. C. ; 7008, Thomas Boulevard, Pittsburg, U.S.A.) Oct. 18, 1929, No. 31720. Convention date, Nov. 24, 1928. [Class 103 (i).] In an automatic pressure brake system the supply of fluid under pressure to the train pipe is arranged to be cut off automatically upon a reduction in train pipe pressure acting directly on one side of the abutment of the cutoff valve the movement being effected by fluid pressure acting in a chamber on the other side of the abutment when the driver's valve is in the running position, fluid being vented from this chamber when the driver's valve is in the release position so that the abutment is moved back to its initial position by a spring. The feed valve 16 connected to the main reservoir 14 is connected by a slide valve 7 and pipe 20 to the driver's valve 10, in the running position of which the pipe 20 is connected to the train pipe 4. The slide valve is operated by a piston 5, the chamber 2 on one side of which is connected to the train pipe by a pipe 3 and the chamber 6 on the other side is connected, in the running position of the driver's valve, to the train pipe also by means of a pipe 11 branched from a pipe 9. The piston is thus held in the position shown by a spring 13. If the train should part the train pipe pressure in the chamber 2 falls and by reason of a check valve 12 in the pipe 11 and as the pipe 9 is blanked in the running position of the driver's valve the pressure in the chamber 6 is maintained and the piston 5 moves the slide valve 7 to cut off the connection between the feed valve and the train pipe. When the driver's valve is moved to release position fluid is supplied from the main reservoir through a pipe 15 to the train pipe and the chamber 6 is connected by the pipe 9 to the atmosphere and the pipe 11 is blanked and the piston 5 is moved by the spring 13 to the left-hand position. In the service and emergency positions of the driver's valve the pipe 9 is connected to atmosphere so that the piston 5 is maintained in the left-hand position.
Patent GB-1080781-A (GB)
Title: Processes and materials for preparing photographic images
IPC: G03C8/28
Filed: 1964-08-05
Abstract: So-called "silver precipitation nucleic" (used in the photographic silver salt diffusion process; see Division G2) are obtained by mixing a dispersion of a sulphide or selenide of any of the metals nickel, copper, iron, cobalt, zinc, cadmium, mercury, germanium, tin and lead formed in an aqueous dispersion of a water-permeable hydrophilic colloid, e.g. gelatin, and an aqueous dispersion of a silver salt which is more water-soluble than the sulphide or selenide, e.g. silver iodide, bromide, chloride, nitrate or p-toluenesulphonic acid silver salt.  The molar ratio of silver salt to the metal sulphide or selenide may be from 1:20 to 5:1 and the nuclei may have an average particle size of 7-2500 <\>rAngstroms.  In examples nickel sulphide is precipitated by adding an aqueous nickelous nitrate solution to an aqueous gelatin solution of sodium sulphide.  To this nickel sulphide dispersion is added an aqueous dispersion of silver iodide made by mixing potassium iodide and silver nitrate. Alternatively, the silver iodide dispersion may be prepared by adding an aqueous silver-nitrate solution to a aqueous gelatin solution of potassium iodide.
Patent GB-506039-A (GB)
Title: Calculating device for use with machine tools
IPC: G06G1/14
Filed: 1937-11-18
Abstract: 506,039. Calculating - apparatus. CROOKS, E. Nov. 18, 1937, No. 31797. [Class 106 (i)] The invention relates to a calculating device for use with machine tools which have a rotary member carrying the work or cutter. The device comprises a base member A bearing graduations D, a relatively movable (preferably rotatable) indicator element B co-operating with the graduations D and provided with a scale e extending across its direction of movement, a third set of graduations on the base comprising a family of lines f co-operating with the graduations e of the indicator B, the three scales representing : cutting speed, diameter of work or cutter, and speed of rotation of work or cutter. The scales D and e are preferably logarithmic. Where D represents speeds of rotation (as shown), a series of six additional scales D<1> to D<6> representing six gear settings, calibrated according to variable motor speeds obtainable may be provided. Instead of the additional scales a single scale movable round the pivot of the arm B may be used to select a suitable gear ratio. A family of lines i representing rates of feed co-operate with an additional scale h on indicator B to indicate the rate of traverse of the tool for the particular speed of rotation. Means (e.g. electrical) could readily be provided for indicating whether the speed of the machine tool is in accordance with that indicated by the instrument. Distinctive markings may be used to indicate the required manipulation of the gears.
Patent GB-323783-A (GB)
Title: Improvements in the manufacture of safety glass
IPC: B32B17/10
Filed: 1928-10-08
Abstract: 323,783. Burnet, E. Oct. 8, 1928. Divided on 323,745. Compound transparent sheets. - Curved compound transparent sheets are formed by uniting thin flexible sheets of glass and cement by pressure on a curved base k, with or without stepped supports m for the separate sheets. The sheets when placed in the container a are subjected to a vacuum by the pipe l; the press f with pneumatic cushion i is then forced on to the sheets by means of the piston d and air admitted by opening cock c. Air, heated if desired, is then admitted by the pipe l, the cock c being closed, and after setting of the cement the compound sheet is removed. The press is preferably provided with a rubber cushion g to engage the edges of the sheets and to prevent entry of air when the pressure in the container is restored to atmospheric.
Patent GB-363763-A (GB)
Title: An improved shifting spanner
IPC: B25B13/24
Filed: 1930-10-24
Abstract: 363,763. Sliding-jaw wrenches. GILL, H. A., 51, Chancery Lane, London.-(Brooks, L. ; Homewood Avenue, Karori, Welling- ton, and Andrews, F. H. ; Hautapu Street, Taihape, both in New Zealand.) Oct. 24, 1930, No. 32045. [Class 61 (iii).] In a spanner or wrench, a sliding jaw 3 is locked in adjusted position on a -stock 2 by operation of a lever 7 which slides, through a pin-and-slot connection 12, a slightly tapered wedge 5 between the members 3, 2. In a modification, Fig. 6 (not shown), the sliding jaw and the wedge move at right-angles to the stock.
Patent GB-733875-A (GB)
Title: Process for the manufacture of therapeutically active preparations
IPC: A61K31/00
Filed: 1952-12-18
Abstract: Therapeutically active preparations containing Vitamin B12 and a constituent having intrinsic factor activity are obtained by treating an aqueous solution of a combination of Vitamin B12 and said constituent with an organic liquid cooled down to below 0 DEG  C. which is miscible in water, inert to the said combination and is capable of precipitating this from aqueous solution while taking care that the temperature of the mixture is maintained below 0 DEG  C.  As organic liquids there may be used lower alkanols containing one to three carbon atoms, e.g. methanol or ethanol, and lower alkanones containing three to seven carbon atoms, e.g. dimethyl or diethyl ketone.
Patent GB-279671-A (GB)
Title: Improvements in or relating to the manufacture of laminated glass
IPC: C09J5/06
Filed: 1926-12-21
Abstract: 279,671. Imray, O. Y., (Bartelstone, L.). Dec. 21, 1926. Transparencies; compound sheets.-Two sheets of glass are cemented to a sheet of celluloid, cellulose acetate or the like to make a splinterless transparent sheet for wind shields, port windows, eyeglasses, &c., by means of a film of a non-solvent such as castor oil or linseed oil, applied to the celluloid. The glass sheets when applied to the celluloid are subjected to a pressure of 100 lbs. to 400 lbs. per square inch and a temperature of 228‹ F. to 240‹ F. for 5 to 20 minutes. The pressure is applied first at the centre so that excess of oil is expelled. The glass is preferablv first coated with a thin film of celluloid applied in solution and thoroughly dried. The oil may be chemically pure or substantially free from other ingredients.
Patent GB-1282220-A (GB)
Title: Process for producing shadow dyeings and multicolour effects on polyamide materials
IPC: D06P3/82
Filed: 1970-07-03
Abstract: 1282220 Dyeing polyamides FARBWERKE HOECHST AG 3 July 1970 [4 July 1969] 32422/70 Addition to 1264523 Heading D1B Shadow dyeings and multicolour effects are produced on textile materials of synthetic polyamides by treating at a liquor to goods ratio of 10:1 to 40:1 at 60‹-120‹C and pH 2-9 with a water soluble non-dyeing natural or synthetic tanning agent, for 10-60 minutes followed by blending the material so treated with untreated polyamide material and then dyeing the blended material at pH 3-7 with an aqueous bath containing an acid dye or any two or three-component mixture of an acid dye, a basic dye and a disperse dye.