baber/WOPTO huggingface dataset:
Patent GB-605010-A (GB)
Title: Improvements in or relating to safety devices in free-piston internal combustion engine gas generators
IPC: F02B71/06
Filed: 1945-12-11
Abstract: 605,010. Free - piston gas generators. VICKERS-ARMSTRONGS, Ltd., and DAVIS, D. E. Dec. 11, 1945, No. 33541. [Class 7 (i)] In an opposed-piston free-piston internal combustion engine gas generator an arrangement for arresting the pistons in the event of overstrokes due to the working cylinder receiving an excessive charge of fuel comprises a chamber 7 at each end of the generator which communicates with a corresponding cushion cylinder 4 through ports 8 which are masked as the pistons approach their outward limit of travel the greater part of the outward stroke being resisted by compression of air in the cushion cylinder and the chambers which offers a comparatively low pressure cushioning action while towards the outer limit of travel the ports are masked and compression takes place in the cylinder 4 in which the pressure rises rapidly in the manner of a high-pressure cushion. The arrangement avoids the disadvantage of high-pressure cushion cylinders which overheat and combines the advantages of high-pressure and low-pressure cushions. As shown, compression takes place-between the outer faces of enlargements 5 of the pistons and the ends of the co-operating cylinders. The positions of the cushion cylinders and of the compression spaces may be interchanged or the cushion spaces may be at the outer end of a compressor cylinder in which compression takes place on an inward stroke. The chambers 7 may extend only partly around the cushion cylinders.
Patent GB-506762-A (GB)
Title: A method and apparatus for paving roads
IPC: E01C19/52
Filed: 1937-12-03
Abstract: 506,762. Road paving machines. BUHRMANN, H. Dec. 3, 1937, Nos. 33547 and 33548. Convention dates, Dec. 3, 1936 and Aug. 27, 1937. [Class 107] A road-paving machine, movable longitudinally along the road, comprises a frame extending over the whole or part of the width of the road and carries means for applying embedding material to the foundation, a screed for levelling the applied material, a template for ensuring the regular and accurate laying of paving stones on the levelled surface, and a device for ramming or pressing the stones into the embedding material. The machine shown in Fig. 1 comprises a frame 1, 3 supported by wheels 2 running on longitudinal rails 23. A hopper 4 carrying embedding material 24, such as cement mortar, is movable on transverse rails 26 near the front of the machine. The material may be fed to the hopper from a mixing device. An adjustable screed 6 is mounted on the hopper and a further adjustable screed 22 is mounted behind the hopper. A manually or mechanically operated conveyer belt 27 is arranged behind the hopper and is adapted to deliver paving stones 8 to workmen standing on a platform 28. The workmen place the stones into the cells 10, Fig. 7, of a frame 9, which frame is suspended by wire ropes 11 passing over rollers 12 and can be raised or lowered. During the laying operation the frame is lowered to rest on the levelled surface of the embedding material, and is then raised to leave the stones correctly positioned as shown. The machine is advanced step by step during the paving operation, and, after each forward movement a ramming or pressing device comprising planks 14, Fig. 3, is brought above the positioned stones. The planks are interconnected by girders 29 and members 30, and carry end plates which are guided for vertical movement in frames 16. The plates carry rollers 17 which are movable on the inclined surfaces 21 of a slide 18. By moving the slide backwards and forwards, by means of a hand wheel 20, the ramming planks are raised and lowered to effect the ramming or pressing of the paving blocks.
Patent GB-778676-A (GB)
Title: Improvements in or relating to textile guiding drums
IPC: D06B23/02
Filed: 1954-11-19
Abstract: 778,676. Rollers &c. HERAEUS QUARZSCHMELZE GES. Nov. 19, 1954 [Nov. 20, 1953], No. 33557/54. Class 42 (2). A drum for guiding fabrics, yarns, &c. during liquid treatment comprises a shell consisting of chemically-resistant material spaced from a cylindrical metal shaft at one end at least by carrier means having the same coefficient of expansion as the shell, at least one elastic sleeve being interposed between the carrier means and the shaft to absorb differences of radial heat expansion and annular thrust and torquetransmitting means serving to transmit drive from the shaft to the shell and to accommodate differences in axial heat expansion while maintaining the shell in axial compression. In one embodiment, Fig. 1, the shell 1 is spaced from the shaft 6 by a centring bush 2 of the same material as the shell and an elastic sleeve 7, e.g. of rubber, which can accommodate differences of radial expansion due to temperature changes. Nuts 5 screwed on the shaft pin 6b act through a metal washer 4 and acid-resistant rubber packings 3 to maintain shell 1 under compression and transmit torque, packings 3 accommodating changes in axial heat expansion ; additionally, a helical compression spring may be located between the washer and the nuts. In another embodiment, Fig. 3, the centring bush is replaced by a cap 22 ; differences of radial expansion are taken up by a sleeve 27, and of axial expansion by a rubber bush 23 and a helical spring 29. In another embodiment, Fig. 4, the shell 31 is supported on shaft 36 by a disc 32 of the same material as the shell and rubber sleeve 37 ; axial compression and torque are applied through a helical spring 39, a flanged metal thrust member 38 and a rubber ring 33 ; the axial position of disc 32 is located by a set-screw 50. In a further embodiment, Fig. 5, the shell end is bevelled cr rounded at 51 and seats against a rubber packing 47 in a groove in cap 42 having an elastic sleeve 43 and the shell is under compression from a spring 49. The chemically resistant material may be a metal oxide, a metalloid, glass or ceramic material. The metal parts may be of stainless steel, the shaft may be hollow, and the end face or faces of the shell may have annular beadings to increase frictional grip. Only one end of the drum may have elastic coupling and compression-applying means, the cap or bush at the other end of the drum abutting a ring or shoulder on the shaft.
Patent GB-469878-A (GB)
Title: Improvements in or relating to gloves and the like
IPC: A41D19/00
Filed: 1935-12-04
Abstract: 469,878. Garments and compositions for skin-beautifying treatment. TREVORROW, Ltd., R. G., and FOSS, P. E. Dec. 4, 1935, Nos. 33629/35 and 5992/36. [Classes 81 (i) and 81 (ii)] [Also in Group VII] Articles of clothing worn next the skin, such as gloves, mitts, stockings, socks, vests, bust bodices, corsets, night clothes, chin straps, body belts, are formed of thin cellular fabric of an absorbent nature impregnated with a substance containing stearine present in the fabric in a dry state. The impregnated articles are used for skin-beautifying purposes. As shown a mitt A, of light cellular absorbent fabric, having a separate thumb portion A<1>, is made by sewing or otherwise connecting together at their edges two halves of the contour shown and is provided with elastic A<2> at the wrist and a bound edge. The mitt is impregnated with a 10 per cent solution of an aqueous emulsion, made by mixing together 5 parts of triethanolamine, 15 parts of stearic acid, 1 part of boric acid, and 200 parts of water and passing the mixture through an emulsifying-apparatus, the liquid then being evaporated from the mitt.
Patent GB-776461-A (GB)
Title: Improvements in or relating to top units for articles of catering equipment such as food conveying trolleys and hot closets
Inventor: GARDINER WILLIAM THOMAS
IPC: A47B31/02
Filed: 1954-11-22
Abstract: 776,461. Hand trolleys. GARDINER & GULLAND, Ltd. Nov. 8, 1955 [Nov. 22, 1954], No. 33745/54. Class 108(1). [Also in Group VI] A top 10 for a serving trolley comprises ledges 14 for supporting frames 11, 12, 13 at least one frame being square externally. As shown, frames 11, 12 have integral cross bars 15 and frame 13 has a removable cross-bar 16. Further easily removable bridging bars 17 have end portions 171 which fit into recesses 18 in frames 11, 12, 13 and bridging bars 15, 16. Specifications 463,538 [Group VI] and 666,050 are referred to.
Patent GB-508943-A (GB)
Title: Improvements in or relating to the adhesive securing of shoe parts together and in or relating to means and adhesive compositions suitable for use therein
IPC: A43D25/06
Filed: 1937-12-07
Abstract: 508,943. Rubber compositions. BRITISH UNITED SHOE MACHINERY CO., Ltd., MACDONALD, D. B., PRATT, J. W., and BOOTHROYD, H. Dec. 7, 1937, Nos. 33781/37 and 19385/38. Drawings to Specification. [Class 70] [Also in Group VII] Relates to adhesives of the kind described in Specification 465,037, [Group VII], intended for securing soles to shoes, and comprising gutta-percha, water white rosin and partly polymerized chinawood oil. The adhesives are thermoplastic and are intended to be applied and allowed to set. Immediately before the parts are to be pressed together, the adhesive is activated by a high temperature heat source applied at short range for a very short time so as to heat the adhesive only. One suitable mixture comprises 17¥ parts of gutta-percha, 48 parts rosin, 3“ rubber from latex, 6¢ chinawood oil and 1/3 beta naphthol, all by weight. An alternative adhesive contains 48 parts rosin, 6¢ rubber, 3 5/8 chinawood oil, ¢ Stockholm tar and # beta naphthol. Instructions for making up the adhesives are given,
Patent GB-467090-A (GB)
Title: An improved mineral lubricating oil composition
Filed: 1935-12-05
Abstract: To prevent the sticking of piston-rings in internal-combustion engines, mineral lubricating oil is mixed with a small quantity (up to about 2 per cent) of a basic salt of petroleum naphthenic acids, particularly basic aluminium, cobalt, magnesium, zinc naphthenates. In an example, 1 per cent of aluminium dinaphthenate is added to lubricating oil.  There may also be added finely-divided solids such as graphite, colloidal metals, or inorganic metal salts.  British Specifications 252,018, 300,156, 334,181, [all in Class 91], 368,025, and U.S.A.  Specification 1,841,254 are referred to.
Patent GB-729901-A (GB)
Title: Improvements relating to balancing machines
Inventor: CLIFTON JAMES BERNARD MCCARTHY
IPC: G01M1/22
Filed: 1953-12-04
Abstract: 729,901. Measuring rotor unbalance electrically. SMALL ELECTRIC MOTORS, Ltd. Dec. 4, 1953, No. 33811/53. Class 40 (1). [Also in Group XL (c)] An apparatus for determining the position and magnitude of the unbalance masses of a rotor T (Fig. 1) by supporting it on bearings 1, 2 associated with transducers 5, 6 feeding signals which are combined at 7 to give a signal whose amplitude and phase is indicative of the magnitude and position of the unbalance mass at each support, which signal is fed through a tuned filter 8 and amplifier 9 to an indicator 11, and also to a stroboscope 13 so that the cyclic flashes on the stroboscope indicate the phase of the unbalance mass on indicator 11, is characterized in that the filter circuit 8 is continuously adjusted to the speed of rotation of the test rotor T. The A.C. supply feeding the rotor-driving motor 3 is also fed to a frequencysensitive bridge 14, whereby changes in frequency produce an unbalance current which energizes a motor 16 to rebalance the bridge 14, simultaneously adjusting impedance elements 17 in filter 8 to the new frequency. Methods of modifying the circuits to cope with changes in the relationship between the frequency of the mains supply and the frequency of the signals from the transducers produced by,e.g. a change in gear ratio, are discussed. The frequency-sensitive bridge 14 comprises capacitors 30, 33 (Fig. 2) and resistors 31, 32, an unbalance voltage between the corners 40, 40a due to a change in supply frequency being amplified by valves 36, 36a, 46, 46a to produce a current through the armature 50 of motor 16 which alters resistors 31, 32 to restore balance. The tuned filter 8 comprising two arms of a bridge circuit having a capacitor 88 (Fig. 3) and variable resistor 89 in series in one arm and a capacitor 90 and variable resistor 91 in parallel in the other arm, follows amplifying valves 62, 68, 93, 75 which are supplied with negative feed-back from the bridge circuit. The variable resistors 89, 91 are adjusted by the motor 16 as described above, to tune the circuit 8 to the frequency of the signals from the transducers 5, 6. The selected output signals are amplified at 102, integrated at 114, 115, 116 and rectified by double-diode 119 to be shown on a meter 11, and also feed a trigger valve 110 for flashing the stroboscopic lamp 13. Specification 726,107 is referred to.
Patent GB-1481359-A (GB)
Title: Installation for distributing fodder
IPC: A01K5/01
Filed: 1974-07-31
Abstract: 1481359 Fodder distribution installation SCHMEING Gebr 31 July 1974 [8 Aug 1973] 33827/74 Heading AIM An installation for supplying fodder to animals comprises a main duct 1 supplying at least one distribution manifold 2, connected to several distribution ducts 4 which terminate in short vertical sections 11, and has means 19, 20 for simultaneously opening or closing the outlet apertures: The distribution ducts 4 pass between animal pen dividing walls 7, 8 and terminate only a short distance above round feeding plates 5, each section 11 being supported above a respective feeding plate 5 by feeding place dividers. The walls 7, 8 are joined by clamps 9, 10. Instead of individual feeding plates 5, a continuous (feeding trough may be provided below the installation.
Patent GB-342737-A (GB)
Title: Improvements in or relating to water resistant varnishes
IPC: C08K5/03
Filed: 1929-11-06
Abstract: Water-resistant varnishes are made by incorporating a resinous body and a fatty oil with chlorinated derivatives of naphthalene, such as those known under the Registered Trade Mark of Halowax. Ester gum and tung oil, or the product of heating tung oil, formaldehyde, cresol, rosin, and hexamethylene-tetramine, are heated with chlornaphthalene. Solvents, such as benzene, toluene, xylene, and turpentine, pigments, fillers such as aluminium powder and leaf mica, and cobalt driers, may be added.
Patent GB-337605-A (GB)
Title: Improved manufacture of refractory materials from natural magnesium silicates
IPC: C04B35/16
Filed: 1929-11-07
Abstract: 337,605. Metallges. Akt.-Ges. Nov. 7, 1929. Refractory substances.-Relates to processes for making refractory substances from magnesium silicates, e.g. olivine, serpentine, talc, &c., containing substantial quantities of iron by heating the silicates, without fusion, with substances rich in magnesium, e.g. magnesium oxide and magnesite, in an oxidizing atmosphere. According to the invention the substances rich in magnesium are present in quantities which are sufficient for the conversion of the whole of the iron into magnesium ferrite and of the free silica into magnesium orthosilicate. The treatment may also be applied to silicates containing, instead of or in addition to iron, other metals such as nickel, manganese, chromium and aluminium. When silicates which are poorer in magnesium than magnesium orthosilicate are present, the proportion of magnesium oxide or the like is calculated so that the silicates are converted into magnesium orthosilicate. In some cases the amount of magnesium oxide, &c. is calculated to give an excess of magnesium oxide in the final product. The temperature of heating is below the melting point of the product, generally from 700 to 1,500‹ C. Other substances may be incorporated with the raw materials or with the products, for instance iron oxide or ores such as magnetite, aluminium compounds such as clay, kaolin and bauxite and chromium compounds such as chromites. In the manufacture of moulded articles, temporary binding agents, e.g. sulphite cellulose waste lyes may be used, and the moulding may be effected under high pressure, e.g. 500-1,000 kg. or more per sq. cm. Materials which on being treated increase in volume, e.g. certain olevines, may be mixed with substances which decrease in volume, e.g. serpentine, to form compositions having the desired change of volume characteristics. In an example. 1,000 kg. of a rock containing 800 kg. of an iron-containing olevine and 200 kg. of ironcontaining bronzite, with an average content of 10 per cent of FeO are mixed with sufficient magnesium oxide to convert the iron into MgFe2O4 and the silica into magnesia orthosilicate. The materials are ground to a fineness not exceeding 2 m.m. Moulding is effected with if desired binding agents and high pressure, and the moulded article is heated in an oxidizing atmosphere at 1,450‹ C. for 6 hours. Other examples are given in the Specification. Specification 301,547 is referred to.
Patent GB-342385-A (GB)
Title: Arrangement for the release of alternating current switches
IPC: H02H1/00
Filed: 1929-11-07
Abstract: 342,385. Protective cut-out systems. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Nov. 7, 1929, No. 34042. Convention date, Nov. 9, 1928. [Class 38 (v).] A device for releasing A.C. switches on shortcircuit comprises a rapid-acting circuit-breaker in combination with means which is practically independent of the A.C. working potential and acts more quickly than the working current to release the switch in response to conditions in the circuit. Preferably high-frequency currents are employed and are fed into the line 13 by a generator 16 connected to the mid-point of the primary of a transformer 22. An ohmic, inductive, or capacity resistance 21 is normally adjusted so that no potential is impressed on the secondary of transformer 22, but a short-circuit on line 13 causes an increase of current in the half of the primary connected with that line, and sets up a high-frequency potential in the secondary, which potential is rectified and passed through a thermionic amplifier 23 to the release coil 24 of the rapid-acting switch 25. If a frequency of 50000 cycles is injected in a 50-cycle circuit, the switch will be released in about one-thousandth of the time taken by the working frequency. The Specification also refers to the use of the natural frequencies of lines and to D.C. injections.
Patent GB-411433-A (GB)
Title: Improvements in or relating to the prevention of discoloration in liquid aromatic amines
Filed: 1932-12-01
Abstract: Discolouration is prevented or retarded in liquid aromatic amines by the removal of dissolved oxygen therefrom by the replacement of the dissolved oxygen by an inert gas, e.g. nitrogen (preferred), hydrogen or carbon dioxide.  The displacement of the dissolved oxygen is preferably effected by bubbling the inert gas through the liquid amine, but any other convenient method may be employed to assist in the removal of the oxygen, e.g. the amine may be heated or subjected to reduced pressure or both, prior to or during treatment with the inert gas.  The process is applicable to the treatment of aniline, ethylaniline, o-toluidine, vic.-o-xylidine, p-xylidine, dimethylaniline, o-anisidine and p-phenetidine.
Patent GB-341605-A (GB)
Title: Improvements in and relating to pipe joints
IPC: F16L13/06
Filed: 1929-11-08
Abstract: 341,605. Pipe joints. SPENCER, Ltd., J. and SPENCER, SIR T. H., Globe Tube Works, Wednesbury, Staffordshire. Nov. 8, 1929, No. 34077. Addition to 280,644, [Class 99 (i), Pipes and tubes, Joints &c. for]. [Class 99 (i).] The clamping means used in the joint described in the parent Specification are replaced by a loose ring f which has an internal flange f at one end with a series of cam or inclined surfaces g on its inner face to engage like surfaces h formed on the abutment c of the pipe a and a flange j at the other end to engage projections k on the abutment d of the pipe b. The flange j is formed with gaps complementary to the projections k so that the flange may engage the latter by passing the projections through the gaps and giving the ring a partial turn. The latter movement will cause the cam surfaces g, h to ride over each other and draw the pipes more tightly into engagement. The said projections may, if desired, be formed on the flange j and the gaps on the abutment d.
Patent GB-1310556-A (GB)
Title: Bobbin handling apparatus
IPC: B65H67/06
Filed: 1970-07-15
Abstract: 1310556 Sorting and supplying bobbins LEESONA CORP 15 July 1970 [18 July 1969] 34229/70 Heading D1F Apparatus for handling. bobbins having rounded cross-sections with diameters that may vary within a given range (the handling operation including segregating single bobbins from a disorderly mass thereof and orienting them) comprises a series of upwardly moving conveyor buckets each intended, by reason of its its cross-sectional, pherhaps adjustable, configuration to receive and retain one only of such bobbins. Each bucket includes an upwardly inclined, e.g. variably convex, portion for supporting the bobbin with its centre of gravity generally directly thereabove, Figs. 4 and 5 (not shown). The buckets, at a lower return stage of their travel, form a hopper for the bobbins.  In the operation of the machine shown, bobbins 90 deposited through an opening 92 are fed to and accumulate in randomly jumbled condition in, and concentrate towards the centre of, a hopper 94 responsive to the demand as assessed by the total weight therein. As conveyor chains 20 move buckets 50 in the direction of arrow 100 the lowermost thereof move along and gather the bobbins 90 and then convey them upwardly along a straight and adjustable portion of the path defined by the chain track 32 and wheel track 66 with their longitudinal axes oriented and parallel to each other and inclined to such path, any excess bobbins temporarily carried by the buckets falling against, and being directed into the hopper 94 by, a flexible deflector 130. At the summit of track 66 a fixed wheel track 62 curves slightly outwardly and then inwardly so that bobbins 90 are dumped from buckets 50 and are deposited one at a time into a chute 102 leading to an end orienting apparatus 104 through a discharge passageway 108 of which bobbins 90 are delivered with the larger diameter end 110 of the bobbin core downwards.
Patent GB-1093358-A (GB)
Title: Improved coatings for high temperature resistant alloys
Inventor: TURNER MERVYN EDWARD DENNANT
IPC: C23C10/28
Filed: 1965-08-10
Abstract: A high temperature alloy e.g. Ni-Cr is protected by depositing a layer of Ag, heating to diffuse it, depositing a layer of Ni, then Al and finally heating to diffuse the Al layer.  The Ag may be formed by electro-plating or decomposing the oxide in an aqueous suspension. The Ni is electro-deposited and the Al is deposited by heating a slip of Al or Al-Ni and aluminium oxide. Alternatively the Al may be applied using a pack of alumina, Al and ammonium chloride or bromide.
Patent GB-1221384-A (GB)
Title: Ribbon cartridge
IPC: B41J33/36
Filed: 1969-07-08
Abstract: 1,221,384. Ink ribbon mechanism. INTERNATIONAL BUSINESS MACHINES CORP. 8 July, 1969 [16 July, 1968], No. 34260/69. Addition to 1,183,172. Heading B6F. An ink ribbon cartridge 180 of the kind described and claimed in the parent Specification, including a slot 215 to receive a drive roller (40, Fig. 1) is modified in that the ribbon passes from a supply spool 184 to a take-up spool 199 around a guide 214 positioned at the end of the slot 215 furthest from the axis of rotation of the take-up spool. The drive roller (40) is driven by mechanism substantially as described in parent Specification, having two gear ratios selectable as a consequence of supplying the cartridge to the mechanism, the gear ratio being selectable according to the presence or absence of a member 220<SP>1</SP> limiting the depth of a recess 220 in the cartridge. The member 220<SP>1</SP> is intended to coact with :a gearratio selecting member (221, Fig. 4) of similar nature but modified construction with respect to the mechanism described in parent Specification. The cartridge further includes a slot 216 from which a stud (43, Fig. 5) may project, to indicate the amount of ribbon on the takeup spool 199. Knobs 190, 204, on the supply and take-up spools respectively, permit manual winding of the ribbon.