baber/WOPTO huggingface dataset:
Patent GB-930989-A (GB)
Title: Production of inorganic compounds
IPC: C22C1/00
Filed: 1959-09-11
Abstract: A stoichiometric or non-stoichiometric compound of an element selected from Ag, Cu, Au, Hg, Pb, Bi, Ni, Ru, Rh, Pd, Os, Ir, Pt, As, Sb with an element from the group As, Sb, Se, Te, the two elements being different, is obtained by the simultaneous reduction in a common reaction medium of a compound of the element of the first group and a compound of the element of the second group with a reducing agent capable of liberating both elements. Preferred reducible compounds are water-soluble salts, and water-soluble oxy-acids of the second group, and reaction may be carried out in aqueous solution, in an aqueous-organic or organic solvent, or in the vapour phase.  Preferred reducing agents are those of the phosphorous acid group, or sulphur dioxide or solutions which liberate it on acidification.  Organic acids such as aldehydes, reducing sugars or unsaturated carboxylic acids may also be used.  Metal complexing agents, such as malic, citric and tartaric acids, are preferably present during the reaction.ALSO:A compound of an element selected from Ag, Cu, Au, Hg, Pb, Bi, Ni, Ru, Rh, Pd, Os, Ir, Pt, As, Sb with an element from the group As, Sb, Se, Te, the two elements being different, is obtained by the simultaneous reduction in a common reaction medium of a compound of the element of the first group and a compound of the element of the second group with a reducing agent capable of liberating both elements.  Preferred reducible compounds are water-soluble salts, and water-soluble oxy-acids of the second group, and reaction may be carried out in aqueous solution, in an aqueous-organic or organic solvent, or in the vapour phase. Preferred reducing agents are those of the phosphorous acid group, or sulphur dioxide or solutions which liberate it on acidification.  Organic acids such as aldehydes, reducing sugars or unsaturated carboxylic acids may also be used.  Metal complexing agents, such as malic, citric and tartaric acids, are preferably present during the reaction.
Patent GB-950457-A (GB)
Title: Improvements in or relating to building blocks
IPC: E04B2/18
Filed: 1959-09-11
Abstract: 950,457. Building blocks. E. B. DIELMAN. Sept. 8, 1960 [Sept. 11, 1959], No. 31052/59. Heading E1B. A concrete building block having tapered ribs 13, 43, 44 and corresponding grooves 10, 41 is provided with four vertical apertures 45 or with recesses 16 extending alongside the rib 13, 44. Closed cavities may extend into the block of Fig. 1 from the lower horizontal free and the ribs are slightly smaller than the grooves. Recesses 46 may be provided in one or both end frees of the block of Fig. 7 and the recesses 16 may also extend on the other two bonding frees of the block of Fig. 1. A corner block and half block are described.
Patent GB-1394988-A (GB)
Title: Combustion arrangements
IPC: F23R3/24
Filed: 1971-07-02
Abstract: 1394988 Combustion apparatus; gas turbine plant CAV Ltd 29 June 1972 [2 July 1971]  31074/71 Headings F1G and F1L The invention relates to combustion apparatus comprising a cylindrical combustion chamber to which air/fuel mixture is supplied for combustion therein and to which dilution fluid is supplied to reduce the temperature of the gases discharging from the chamber. The hot gas generator shown comprises a first compressor 11 which supplies a fuel/air mixture to the combustion chamber 16, a second compressor 12 which supplies dilution air to the combustion chamber, and a turbine 10 driven by gases from the combustion chamber, the turbine driving the two compressors 11 and 12. The combustion chamber carries a porous ring element 19 through which the fuel/air mixture from the compressor 11 is discharged in a radial direction into the chamber and ignited by igniter 21. Dilution air from the compressor 12 is delivered into the combustion chamber in an axial direction through an opening 18 in the end wall thereof. Some dilution air may flow through axially-extending openings in the porous ring and then discharge into the chamber.
Patent GB-222721-A (GB)
Title: Overedge sewing machine
IPC: D05B1/20
Filed: 1923-12-11
Abstract: 222,721. Fairweather, W., (Singer Manufacturing Co.). Dec. 11, 1923. Sewing-machines; loop-stitching; needles, driving; needle guides. - In an overedge sewing- machine in which the thread carried by an eyepointed work-penetrating needle 14, Fig. 1, is enchained at the margin of the work by a bearded needle 15 in conjunction with loop spreaders 37, 20 above and below the work, the spacing of the needles and the throw of the loop spreaders can be adjusted to a number of predetermined positions for substantially differing widths of seam. The needle-bar 16 carries a cam block 11, which coacts with a crank 8 on the main-shaft 6 to reciprocate the needle-bar, and a needle-holder 151 which carries the needles 14, 15, the latter of which is clamped in any one of a series of apertures in the holder. The loop-spreader 20 is carried by member 26 pivoted at 24 and oscillated by a link 28 adjustably connected to a lever 30, which is actuated from a cam 35 on the mainshaft 6. The loop spreader 37, Figs. 1 and 2, is adjustably clamped to a bell-crank 40, 58 pivoted on the free end of the arm 44 of a bell-crank 44, 47 which is adjustably connected by a link 48 to an arm 51 of a shaft 53 which is rocked from a cam 57 on the main-shaft. The bell-crank 40, 58 is linked to an arm 60 of a second shaft 61 rocked from a cam 64 on the main-shaft. While the needles are at the upper end of their stroke and the work is being fed, the spreader 37 is drawing a thread-loop to present to the needle 15. When the needles descend, and the spreader 37 completes its movement, the needle 15 descends between the arm of the upper loop a as shown in Fig. 6 carrying a loop b from under the work. The loop b slips past the beard 15<1> which is then closed between a back-guide 72, Fig. 2, mounted on the cloth plate 2 and a beard-closing block 74 mounted on an edge-guide 77. As the needles rise, the spreader 20 seizes a fresh loop b, thrown by the needle 14 and presents it to the beard of the needle 15, which seizes it as shown in Fig. 9 and is then closed to pass through the work and the two loops on its shank. The lateral stress produced by the drawing of the lower loop b is taken by a stitch-retaining finger 69, Fig. 2, having a bevelled edge slightly spaced from the bevelled edge 68 of the needle-hole 67 so that the loops will feed readily on to the work-plate. Work supporters and guides.-A circular throat plate 65 having a substantially rectangular needlehole 67 is secured in an opening in the cloth plate. An edge-guide 77 is adjustably secured upon the cloth-plate by screws 78 and a slot 79.
Patent GB-1437532-A (GB)
Title: Pump units
IPC: F04D29/04
Filed: 1973-06-29
Abstract: 1437532 Centrifugal pumps SEALED MOTOR CONSTRUCTION CO Ltd 20 May 1974 [29 June 1973] 31193/73 Heading F1C A pump unit for central heating systems, includes a rotatable shaft 4 having the rotor disc 5 of an axial-gap electric motor mounted on one end and the pump impeller 1 on the other end. The unit includes a bearing assembly comprising a ceramic tube 6 rotatable with the shaft in a fixed sleeve 7, and rotatable ceramic thrust washers 11, 12 arranged to bear against the ends 9 of the sleeve. The tube 6 and sleeve 7 are secured by adhesives or interference rings and the thrust washers are located by springing-in, adhesives, rubber mounts or separate retaining rings. One of the thrust washers may be replaced by a flange integral with the tube 6.
Patent GB-927436-A (GB)
Title: Pneumatic programming system for colorimetric analyzers
IPC: G01N35/08
Filed: 1959-09-14
Abstract: 927,436. Magnetic stirrers. S.L.F. ENGINEERING CO. Sept. 14, 1959 [Sept. 15, 1958], No. 31225/59. Class 86. [Also in Groups XXVIII, XXIX and XL (b)] The fluid in each cell of a colorimetric chemical analyzer is stirred by a plastic-covered bar magnet 56 driven by a permanent magnet 58 below the wall 48 and carried by the shaft of an electric motor 60.
Patent GB-520658-A (GB)
Title: Improvements in and relating to the storage of grain and the like and protection against air raids
IPC: E04H14/00
Filed: 1938-10-28
Abstract: 520,658. Granaries; air-raid shelters. JENNINGS, M. Oct. 28, 1938, No. 31266. [Class 20 (i)] A building in which grain or the like is stored covers a space in which an independent air-raid shelter is constructed. The granary 11, which is built of reinforced concrete, comprises a floor 12 disposed at a suitable level above the ground and covering a space 13, in which an independent air-raid shelter 21 is constructed, spaced from the walls of the enclosure. The side and end walls of the grain-storing space may be provided with spaced partition walls 16 to form lateral bins 17 and the inner ends of these walls may be supported on a wall 18, which may form the inner wall of a passageway, through which rails and trucks may run for use in unloading the grain through apertures in the floor. The space 22 disposed around the shelter 21 may be used for the storage of implement and grain elevators 23. Stairways or offices may be erected at the ends of the building. The lateral passageways may be divided into cubicles and be flooded with grain if desired. Access to the shelter 21 may be had through gas-locks or by means of a subway and air conditioning plant may be provided in the space 22. The building may be sunk below ground level in which case conveyers and elevators are provided for discharging the grain.
Patent GB-599903-A (GB)
Title: Electrical connector and method of fabrication thereof
IPC: H03F3/54
Filed: 1945-11-20
Abstract: 599,903. Making electric connectors. HAZELTINE CORPORATION. Nov. 20, 1945, No. 31270. Convention date, Jan. 6. [Class 83 (ii)] [Also in Group XXXVI] An electric connector, comprising a rigid cylinder 35 and contact fingers 36 resiliently connected thereto, may be formed from a flat strip, Fig. 3c, which is serrated for fingers 40, grooved at 41, 42 and bent as shown, the strip being formed into a cylinder with a rigid outside 39. In a modification, a rigid cylinder 43 Fig. 4, has serrations 44 and grooves 45, 46 to provide resilience, the serrations 44 being bent as indicated by the arrows I, II. The connector of Fig. 5a is formed from a circular blank 47 in which grooves 48, 49 and a tapered bore 50 are machined and slotted to provide V-shaped fingers 51. The 'connector is made of berylium copper or soft copper.
Patent GB-1032845-A (GB)
Title: Photographic printer
IPC: G03B27/20
Filed: 1964-08-04
Abstract: 1,032,845. Photographic printing apparatus. NUARC CO. Aug. 4, 1964 [May 11, 1964], No. 31310/64. Heading G2A. A printer 20 for use in making photographic plates comprises a cabinet 21 with a light source mounted therein; a printing frame 25 including a pair of glass plates 86 and a pair of imperforate resilient blankets 101, each blanke being face-toface with a plate 86; a continuous seal 103 around a peripheral position of each combination of plate and blanket, means for drawing a vacuum between the components of each combination; and means for mounting the frame in the top of the cabinet for pivotal movement about a central axis of the frame to enable either glass plate to face the light source while a vacuum is maintained between the components of the combination nearest the light source. Each plate 86 is carried in a frame assembly 85 which is raised to allow insertion of sensitized material and negatives which are laid on the blanket 101. The assembly is closed and locked by latches 96. A vacuum is drawn between the blanket and plate by actuating a vacuum control switch 106 (or 107 if the other side B of frame 25 is uppermost) which starts a vacuum pump connected to the cavity between the blanket and plate by tubular pintles 83, 84 having vacuum fittings 114 and conduits 116 at their outer ends and T fittings 118 and conduits 119,120 at their insides. Atmospheric pressure forces the blanket 101 against the plate 86. The frame 25 is rotated through 180 degrees about the pintles 83, 84 by releasing latch 142. The latch is locked, vacuum continues to be drawn and the photographic material is exposed while the other loading station (now on top) is unloaded and reloaded. The light source is preferably a xenon lamp. The blanket 101 is preferably a one piece rubber moulding and may be provided on its plate engaging face with a plurality of square, truncated pyramids or protuberances 102.
Patent GB-1016825-A (GB)
Title: Process for the production of n-substituted-n-halogeno-methyl-acylamino compounds
Inventor: KRITZLER HELMUTH
IPC: C07C233/02
Filed: 1962-08-15
Abstract: Polymers containing free hydroxyl groups, e.g. polyesters, may be cross-linked by heating with a compound of formula <FORM:1016825/C3/1> where R1 is an aliphatic, araliphatic or cycloaliphatic radical which may be substituted, R2 is chlorine, alkyl, alkenyl, aryl, haloalkyl, alkoxy, phenoxy, benxyloxy, alkylmercapto or phenylmercapto, and X is halogen.  Solvents may be used.  In an example a polyester derived from phthalic acid, trimethylolpropane and ethanolamine is cross-linked with N-methyl-N-chloromethyl carbamic acid chloride, in a mixture of toluene, ethyl acetate and butyl acetate.ALSO:Compounds of the formula <FORM:1016825/C2/1> where R1 is a branched or unbrached saturated or unsaturated aliphatic, araliphatic or cycloaliphatic radical which may be substituted, R2 is chlorine, alkyl, alkenyl, aryl, haloalkyl, alkoxy, phenoxy, benzyloxy, alkylmercapto or phenylmercapto, and X is halogen are prepared by reacting a compound <FORM:1016825/C2/2> with a compound R2CO.X or R2CS.X; an inert organic solvent may be used.  In addition, compounds of the first formula above in which R2 is alkylmercapto or phenylmercapto are claimed as novel.  Examples prepare the following compounds of formula R2CONR1.-CH2Cl (R1 and R2 given): (1) CH3, Cl; (2) C2H5, Cl; (3) C3H7, Cl; (4) C4H9, Cl; (5) allyl, Cl; (6) cyclohexyl, Cl; (8) CH3, CH3O; (9) CH3, C2H5O; (10) CH3, C6H5O; (11) CH3, CH3; (12) CH3, CH2 = C(CH3)-; (13) CH3, CCl3; (14) iso-C4H9, CH3O; (15) allyl, CH3O; (16 CH3, C6H5CH2O; (17) C6H5CH2, Cl; and (18) CH3, iso-C3H7O; and also (7) ClCH2N(CH3).-CS.Cl and (19) ClCH2N(CH3)CSSC4H9.  Other products and suitable starting materials are listed.ALSO:Glass is coated with a solution in toluene, ethyl acetate and butyl acetate of (1) a polyester prepared from phthalic acid, trimethylolpropane and ethanolamine, and (2) N-methyl-N-chloromethyl carbamic acid chloride, and the resulting film is dried and heated at 100  DEG C. to cross-link the polyester.
Patent GB-1186612-A (GB)
Title: Improvements in or relating to Article Retainer
Inventor: SWINGLE JOHN CHRISTOPHER
IPC: B42D17/00
Filed: 1967-07-07
Abstract: 1,186,612. Letter racks. J. C. SWINGLE. 7 July, 1967 [7 July, 1966], No. 31409/67. Heading B6E. A letter rack is in the form of an endless spiral of resilient material 10 secured by means, which may be readily releasable, to a base 11. The endless spiral may be made from an elongated cylindrical spring joined together at the ends.
Patent GB-1020570-A (GB)
Title: Improvements in or relating to segments for ring-shaped sections of tunnel lining
Inventor: MAKITA JINICHI
IPC: E21D19/04
Filed: 1963-08-09
Abstract: 1,020,570. Wells &c. KUMAGAI GUMI KABUSHIKI KAISHA. Aug. 9, 1963, No. 31464/63. Heading E1F. A segment for a ring of a tunnel lining comprises a curved, corrugated steel plate b, steel end plates c welded to the plate b, and curved structural steel sections a welded to the plate b. The plates c and the sections a have bolt holes d for attachment of adjacent segments. Jacks for a shield (not shown), having a conveyer react against a ring of segments.
Patent GB-684164-A (GB)
Title: Improvements in or relating to a percussion mechanism and the tool in which such mechanism is applied
IPC: B25D11/06
Filed: 1949-12-08
Abstract: 684,164. Percussive drills. RUSSUM, P. V., and SCHUL, G. Dec. 8, 1949 [Dec. 9, 1948; Sept. 17, 1949], Nos. 31480/49 and 31481/49. Class 124. In a percussive mechanism having at least one mass capable of rotary motion and oscillatory movement about a centre which joins in the rotary motion and at least one tool or a body in contact with a tool in the path of the oscillating mass, the centre of rotation is always between the centre of oscillation and the striking face and the oscillating mass is articulated to the rotating mass with which it is in contact in such a manner as to be always positively guided. As shown, applied to a percussive drill, an oscillatory mass 5, pivoted to a rotating member 1 at 3 has a face 13 co-operating with a guideway 10 on the member 1. Shoulders 11 and 12 on the member 1 make contact with the mass 5 at the ends of its travel. A striking face 13' on the mass 5 strikes an anvil or tool 8. In a modification, Figs. 8 and 9 (not shown), the face 13<SP>1</SP> is provided with a profiled groove so that the pressure on the faces is gradually reduced as the striking face slides over the anvil. In a further modification, Fig. 12 (not shown), the anvil may be in two parts separated by a spring. An electric motor may be used as the prime mover.
Patent GB-669685-A (GB)
Title: Improvements in or relating to devices for the suspension of garments
IPC: A47G25/62
Filed: 1949-12-08
Abstract: 669,685. Skirt hangers. SALAMAN, G. Oct. 13, 1950. [Dec. 8, 1949] No. 31547/49. Class 52 (v). A skirt hanger comprises a tubular bar 1 and two telescopic end members 2 urged outwardly by springs 11, abutting a hook 10 and a pin 12, mounted on the outer end of a rod 13 slidable within the spring 11. By altering the position of the pin 12, in a shaped slot 14 in the member 2, the spring pressure applied to the end member can be varied allowing different sized skirts to be suspended. Depending lugs 16 on the bar 1 retain the extensions in position. Fingerengaging lugs 5 facilitate retraction of the end members.
Patent GB-776236-A (GB)
Title: Improvements in or relating to tentering and stentering machines for drying fabrics in long lengths
Inventor: LODDING HERMAN
IPC: F26B13/10
Filed: 1955-11-04
Abstract: 776,236. Drying fabrics &c. WHITELEY, Ltd., E. G. Nov. 4, 1955, No. 31555/55. Class 34(1) A stenter drier has a series of blowing heads located at intervals along the length of the drying chamber, each having an upper and a lower jaw 5, 6 respectively disposed close to the fabric F and having apertures through which air heated by heater 4 is driven by a fan 2 on to the fabric, the intervals between adjacent blowing heads being approximately equal to the width of each such head.
Patent GB-336798-A (GB)
Title: Process and apparatus for the liquefaction of air and other gases
IPC: F25J3/04
Filed: 1929-10-17
Abstract: 336,798. Flamand, M. Hazard-. Oct. 18, 1928, [Convention date]. Liquefying. - Air &c. is compressed to 200 atmospheres by a compressor 1 and cooled by water in a cooler 2. After removal of water and carbon dioxide it is cooled say to -12 C. in an interchanger 3 and further cooled e.g. to -50 in a refrigerator by ammonia &c. boiling at -50. Either before or after passing through this refrigerator, a part of the air &c. is reduced in pressure by a cock 8 and expanded in a motor 9 to atmospheric pressure. The exhaust passes through a liquefier 5, liquefying the unexpanded remaining portion of the gas; the liquid is drawn off by a cock 7; the residual gas returns with the exhaust gas through the liquefier 5 and cooler 3.
Patent GB-714040-A (GB)
Title: Improvements in servo mechanisms
IPC: G05D3/14
Filed: 1952-12-12
Abstract: 714,040. Electric follow-up systems. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES. Dec. 12, 1952 [Dec. 18, 1951], No. 31594/52. Class 40 (1). The invention relates to a follow-up system wherein a shaft 108 is driven by a two phase servo-motor 107 to follow-up a control shaft 101, the usual error signal, derived e.g., from a discriminator 102, being amplified at 105 and applied to the control phase 112 of the motor through a balanced bridge circuit which feeds back negatively to the amplifier a voltage proportional to the back e.m.f. of the motor. The amplifier output is connected across the bridge ratio arms 109, 110 and across the series connected motor control phase 112 and a " balancing " network 113. According to the invention the network 113 comprises a magnetic circuit of the same material but of a volume 1/K of that of the motor magnetic circuit, (where K is the arbitrarily selected ratio of the bridge ratio arms 109, 110), and in which the ratio of the air-gap lengths to the total length of the magnetic circuit is the same for both circuits. If K is unity then a further motor identical with 107 in which the rotor is locked may be used for the balancing circuit. When K 1, a transformer, Fig. 3, having a short circuited secondary 303 and L-shaped core elements 304 dimensioned as stated above may be used for the bridge element 113. Substantial bridge balance at all motor speeds is thereby achieved whereby the feed back voltage is a function only of the back e.m.f. in the winding 112.
Patent GB-536896-A (GB)
Title: Improvements in apparatus for vibrating materials or objects or human bodies
IPC: A61H23/02
Filed: 1939-12-06
Abstract: 536,896. Massage appliances. DILLON, T. A. Dec. 6, 1939, No. 31609. [Class 81 (ii)] [Also in Group XXIV] Vibratory exercising &c. apparatus comprises a hollow frame 37, the top 39 of which forms a seat or support for the load and which encloses a supporting structure 40, 41, from which it is suspended through the medium of springs and rods 19. The rods are attached at their lower ends to a frame 43 which is secured by crossbeams 44 to the inside of the frame 37. When used as an exerciser, the top of the frame 37 may have folding extensions to provide a surface on which a patient can lie. The vibrating mechanism is of the kind described in Specification 512,810, [Group II], and comprises a shaft mounted eccentrically in bearings in the frame 43. The shaft carries a centrally disposed fly wheel 48 which functions also as a pulley for driving the shaft by means of a motor 51 and belt 53. In a modification, the shaft is driven directly by means of an armature carried thereby and passing through a motor casing supported on the fixed structure by a resilient arm.
Patent GB-737081-A (GB)
Title: Improvements relating to jet propulsion engines
IPC: F02K3/11
Filed: 1949-12-09
Abstract: 737,081. Gas turbine plant. SHARMA, D. N. Dec. 11, 1950 [Dec. 9, 1949], No. 31659/49. Class 110 (3). A gas turbine jet propulsion engine with an axial flow compressor has the air discharged from the compressor divided into two paths leading directly to two sets of heat generating sources located at the periphery of the engine casing, the air from one path being led to a turbine which drives the compressor and the air from the other path by-passes the turbine and discharges into the exhaust nozzle. The gas turbine shown has an axial flow compressor 4, 11, the discharge of which feeds sets of combustion chamber 7, 7A located at the periphery of the engine casing. The set of combustion chambers 7 supply gas to the turbines 9, 10 and the set of combustion chambers 7A supply gas direct to the exhaust nozzle 24, by-passing the turbines 9, 10. The turbine 10 drives a propeller through the shaft 26. The compressor drum 21 has compressor blades 22 which compress air sucked through apertures 20 and discharge it over the bearings and the parts of the turbine 23 to the exhaust nozzle 24. Burners may be fitted at the positions marked X. When the combustion chambers 7A are in operation, the reaction cone 32 is retracted by means of an electric motor 29 acting through a shaft 14A and nut 27. The movement of the cone may be used to operate the fuel supply cocks to the combustion chamber 7A. The cone 32 may have extra burners located at the tip.