baber/WOPTO huggingface dataset:
Patent GB-899357-A (GB)
Title: Sealing grooves for preventing fluid leakage
IPC: F16K3/36
Filed: 1958-07-07
Abstract: 899,357. Valves. BUTLER, G. A. July 7, 1958 [Sept. 26, 1957], No. 21718/58. Class 135. A sealing groove in one of two slidably abutting valve faces is V-shaped with contoured edges facilitating flushing of the sealing fluid when the valve opens. In a gate valve, pressure at 12 or 13, Fig. 1, unseats an upstream gate part 61 or 62 to act above pistons 82, 83 floating on sealing material in cylinders 80, 81 to force the material into grooves 88 sealing the seats 63, 64 to the valve body and also through seat transfer port 90, gate transfer port 94 and seat transfer port 93, Fig. 3, whereby material flows into annular triangular shaped sealing groove 91 to seal gate port 61 around the downstream seat opening 71 when gate transfer port 94 straddles seat ports 90, 93. The seat may be relieved at 110 to enable pressure in port 71 to act on the material. The triangular sectioned groove 91 presents a large sealing area and permits detritus to be flushed out.
Patent GB-170911-A (GB)
Title: Improvements in and relating to the production of solutions containing aluminium formate and an alkali salt
IPC: C07C51/41
Filed: 1920-07-20
Abstract: A product which when dissolved in water gives a clear solution containing aluminium formate and an alkali salt is obtained by mixing an alkali formate and an aluminium salt the acid component of which is stronger than formic acid, in the proportion necessary for complete double decomposition.  By way of example, sodium formate and aluminium sulphate and alum are mentioned as suitable salts.  In order that the product may give a durable solution, the solid materials are partially or wholly desiccated before mixing, e.g. by heating in a vacuum.  The products are suitable for pharmaceutical use.
Patent GB-186292-A (GB)
Title: Improvements in starting and reversing compound internal combustion engines
IPC: F01L13/00
Filed: 1921-03-16
Abstract: 186,292. Sperry, E. A. March 16, 1921. starting.- In starting a compound four-stroke engine having two high pressure cylinders and a . ccmmon low - pressure cylinder by admitting air or gas under pressure to the high-pressure cylinders, the induction valves are held open, the transfer valves are actuated substantially as in the combustion cycle, and the closing of the exhaust valve is delayed so that two-stroke working is secured. In the engine shown, compressed air for starting is taken through a pipe 27 from a reservoir 150 which normally supplies air to the high-pressure cylinders, the air being compressed by the underside of the low pressure piston 7 past a valve 14. A combined inlet and transfer valve 17, 19 between the high pressure and low-pressure cylinders 3, 4 is of the kind described in Specification 186,291, [Class 7 (vi), Internal combustion engines, Valves &c. for]. At starting, the inlet valve 19 is held open by a rod 100<1> engaging the valvelever 29<1>, Fig. 5, and the exhaust valve 106 is opened later than in normal running by a rod 139<1>, Fig. 6, connected by a lever to an eccentric pivot for the exhaust-valve lever. The exhaust valve is also held open until the end of the inlet stroke of the low-pressure piston, by an additional cam moved axially on its shaft 40 by means of a rod 108. The inlet valve 110<1> in the pump space below the piston 7, Fig. 4, is held open by a rod 114' acting upon a spring arm 113' on a lever 111<1>, The fuel-injection valve is closed by a rod 139 connected to the valve lever 53, Fig. 7. by a bell-crank lever 117 pivoted at 118. A finger 120 on the lever 117 actuates a lever which closes an ignition circuit when the fuel valve is returned to the active position. The adjustments are effected from a single cam 126, Fig. 6, turned by means of a handle 129 acting directly or through a pinion 128. The cam has a spiral slot 130 in which engage rollers 131, 132 on arms 133, 134 connected to the adjusting-rods 100<1> &c. In position c of the handle 129, all the engine cylinders are supplied with compressed air for starting; in position b, one high-pressure cylinder is started on fuel; and in position a, all the cylinders are working normally on fuel. Reversing is effected 'by slowing down, reversing the direction of rotation of the cam shaft, and starting in the reverse direction by the method described. The cam shaft is driven by means of bevel gearing and a sliding clutch, the teeth of which engage only in certain positions. The shifting lever for the clutch is controlled by a locking plate connected to a governor so that it can only be moved when the engine is slowed down. Specifications 154,640 and 186,357, [both in Class 7 (ii), Internal-combustion engines, Arrangement. &c. of], also are referred to.
Patent GB-912035-A (GB)
Title: 11ª--hydroxy-11ª--methyl steroids
Inventor: KIRK DAVID NEVILLE
IPC: C07J75/00
Filed: 1960-06-22
Abstract: The invention comprises (1) a process for the preparation of steroids having, apart from substituents at the 16- and 17-positions, the formula <FORM:0912035/IV (b)/1> (wherein R is CHOH, CHO Acyl or CO) which comprises reacting the corresponding 11-keto steroid in which the 3-substituent is CHO Acyl or a protected CO group with a methyl magnesium halide in an inert solvent and hydrolysing the resulting complex; and (2) as a new steroid 11b ,17b -dihydroxy-11a -methyl-5a -androstan-3-one. The process may be applied to steroids of the androstane, pregnane or spirostane series which may contain 17b - or 20-hydroxy- or -acyloxy groups.  In Examples (1) 3b -acetoxy-5a ,25D-spirostan-11-one and methyl magnesium iodide give 3b , 11b -dihydroxy-11a -methyl - 5a ,25D - spirostan, which with acetic anhydride gives the 3-acetate; (2) 5a ,25D-spirostane-3,11-dione and methanol in presence of oxalic acid give 3,3-dimethoxy - 5a ,25D - spirostan-11-one and this with methyl magnesium bromide gives 11b -hydroxy - 11a  - methyl-5a ,25D-spirostan-3-one; (3) 3b ,20b -diacetoxy-5a -pregnan-11-one treated as in (1) gives 3b ,11b ,20b -trihydroxy-11a -methyl-5a -pregnane which on acetylation gives the 3,20-diacetate; and (4) 5a -androstane-3,11, 17-trione and methanol in presence of acetyl chloride gives 3,3-dimethoxy-5a -androstane-11,17-dione, this on sodium borohydride reduction gives 17b  - hydroxy - 3,3 - dimethoxy-5a -androstan-11-one, this on acetylation gives the 17-acetate, this treated as in (1) gives 11b ,17b -dihydroxy-11a -methyl-androstan-3-one and this on re-acetylation gives the 17-acetate.  Specification 912,036 is referred to.
Patent GB-584994-A (GB)
Title: An improved tamping appliance for use in compacting concrete surfaces
IPC: E01C19/34
Filed: 1944-11-08
Abstract: 584,994. Road rollers. HOLMAN BROS., Ltd., and FORD, W. J. Nov. 8, 1944, No. 21979. [Class 6 (i)] [Also in Group X] A roller for compacting concrete road surfaces comprises a main body 1, a plate 36 movable normally to the body, and one or more hammer devices mounted on the body to impart hammer blows to the plate. The latter is of T- section with its web engaged by, or attached to,. the anvil rods 27a of the hammering devices, whilst the ends of the body 1 are supported by three-armed spiders 37 carrying rollers 38 which run within the ends of the roller shell 34 which is movable by means of a handle 35.
Patent GB-773274-A (GB)
Title: Improvements in or relating to shipping containers
IPC: B65D88/52
Filed: 1955-08-03
Abstract: 773,274. Collapsible boxes. KAISER ALUMINUM & CHEMICAL CORPORATION. Aug. 3, 1955 [Sept. 22, 1954], No. 22330/55. Class 18. [Also in Group XXX] A box in which the side, end, base and lid panels are releasably assembled, has projecting ribs running along the lower edges of the side and end panels which engage peripheral grooves in the base with a hinging action, to secure them to the base. The panels in the embodiment described are each formed of extruded strip frames enclosing corrugated sheets 6. All four sides 5 of the base frame have grooves 15 which are engaged by ribs 27 on the lower frame members 20 of the sides 3 and ends 2. The vertical side and end frame members do not interlock, the end members 20 being of identical section with the frame members on the lower edges of the ends, but the side members 28 having no groove. Clips 35 secured to the members 28 engage portions of the vertical members 20 to join the sides and ends. The lid 4 has a connection at one edge 30 with an end 3 which is the same as that between the sides and ends and the base, but the remaining end and the sides inter-fit with the lid in the same manner as the vertical edges of the sides and ends. Clips 35 keep the lid closed. Partition members 90, 91 joined by hook means 95 may be hinged to the lid and base. Slinging and stacking of the box is facilitated by cleats 50, 80 on the base 1 and lid 4. The cleats 50 have sloping surfaces 68 which engage inwardly sloping ribs 81, 82 when one box is placed on another, and eyelets 69, 87 are provided for ropes &c.
Patent GB-1274168-A (GB)
Title: Smoking device for cigarettes, cigars and the like
Inventor: CATSOURIS PANAYOTIS GEORGIOU
IPC: A24F1/30
Filed: 1971-04-19
Abstract: 1,274,168. Cigar and cigarette holders. P. G. CATSOURIS. 19 April, 1971 [13 Nov., 1970], No. 22343/71. Heading A2M. A holder for cigars or cigarettes having a hookah-type filter, includes an outlet valve 20 in its body 2 adjacent a neck portion 3. In use, sucking on the mouthpiece 17 by the smoker causes smoke from a cigarette 11 to be drawn down a tube 7 and through a liquid 8 (e.g. water), outwardly extending fin members 14 aiding the dispersion of the smoke in the liquid 8. When the volume of the smoke in in the body 2 becomes excessive, or when the smoker has finished smoking, blowing through the mouthpiece 17 will exhaust the smoke through the valve 20.
Patent GB-864828-A (GB)
Title: An improved device for regulating the average effect of electric heating apparatus
IPC: H01H37/20
Filed: 1959-06-30
Abstract: 864,828. Thermal switches. SPECIALPOPPER A.B. June 30, 1959 [June 30, 1958], No. 22373/59. Class 38 (5). An electric energyregulator has a bimetal 21 carried on a spring mounting 16 for adjustment by a cam 20. The adjustment transmitting member 17 may be an ambient temperature compensating bimetal. A snap-action contact 13 co-operates with a contact 22 on the bimetal which carries, and is heated by, the load current. The snap-spring 12 has a tongue 14 arranged in known manner such that a downward force on the contact 13 (from the straightening action of the heated bimetal) pushes it over its mid-position from which it snaps open. It is reset by a hook 23 engaging the contact and pulling it over dead-centre as the bimetal cools.
Patent GB-766708-A (GB)
Title: Improvements in or relating to the manufacture of moistureproof, heat-sealable films
Inventor: SANDERSON EDWARD GEORGE
IPC: C08J7/052
Filed: 1954-08-03
Abstract: A composition suitable for the production of a moisture-proof, heat-sealable, self-sustaining film comprises an organic solvent-soluble, film-forming vinylidene chloride copolymer and a slip-agent therefor comprising, incorporated in a proportion of between 1.0 per cent and 5.0 per cent (based on the total weight of solids), a solid ketone comprising in its molecule, and attached directly to the carbon atom of the ketonic group, at least one alkyl group comprising a straight chain of at least 8 carbon atoms, the preferred ketone being laurone.  The slip-agent may also contain between 0.05 per cent and 1.0 per cent (based on the total weight of solids) of finely-divided polymer of vinyl chloride or finely-divided copolymer obtained by the polymerization of a mixture containing 90 per cent by weight or more of monomeric vinyl chloride, and/or between 0.5 and 3 per cent (based on the total weight of solids) of a long-chain alkyl amine derivative of bentonite.  The vinylidene chloride copolymer may be a copolymer of vinylidene chloride and one or more of acrylonitrile, methacrylonitrile, vinyl chloride, vinyl acetate, acrylates and methacrylates, and the monomeric mixture may also contain a small proportion of one or more of citraconic acid, citraconic anhydride, itaconic acid, itaconic anhydride, and mesaconic acid.  The composition may be dissolved in methyl ethyl ketone or a mixture of equal parts of methyl ethyl ketone and toluene, and employed for the production of films and coatings. Specification 655,006 is referred to.
Patent GB-1057003-A (GB)
Title: Improvements in or relating to electric semiconductor arrangements
IPC: H01L23/04
Filed: 1964-05-29
Abstract: 1,057,003. Semi-conductor devices. SIEMENS SCHUCKERTWERKE A.G. May 29, 1964 [May 29, 1963], No. 22462/64. Heading H1K. In soldering terminal plates 5 and 11 to a semi-conductor element or rectifier stack 9, the element or stack is located by pins 2, 3, 4 fitted in holes in the plates. The pins are part of a withdrawable jig 1. The holes in the plates have the same configuration as but of larger diameter than the pins, and the process of assembly involves the fitting of the plates on the pins and of the element or stack together with solder layers 8, 10 between the plates and the pins, and subsequently heating to melt the solder. An etching or other treatment may be performed subsequently and the complete assembly may then be fitted in a suitable housing. In an embodiment the element 9 is a silicon PN diode with nickel or gold-on-nickel electrode layers secured by lead-tin solder to the plates. The latter are of copper or iron and may serve both as terminals and as cooling fins. The single diode shown may be replaced by a plurality of diodes connected as a centre-tapped or bridge rectifier. Figs. 2 and 3 (not shown) depict respectively a three-pin and a four-pin element locating arrangement; the latter is appropriate if the element is rectangular and the former for other shapes of element, e.g. non-rectangular polygons or circles.
Patent GB-1107981-A (GB)
Title: Apparatus for automatically drawing lines
Inventor: RITCHIE DAVID SCARTH
IPC: G06K15/22
Filed: 1963-06-06
Abstract: 1,107,981. Recording apparatus. BARR & STROUD Ltd. and D. MAC Ltd. Sept. 7, 1964 [June 6, 1963], No.22484/63. Heading G1J. Apparatus for recording a prescribed line photographically from data, stored on magnetic tape or punched cards, relating to the co-ordinates of selected successive points along the line comprises a pair of carriages 10, 11 controlled to move a light-beam relative to a photo-sensitive sheet 12 in accordance with the stored coordinates. The carriages 10, 11 are controlled respectively by X and Y drive servomotors, which also drive tachometer generators 31, Fig. 3 (not shown). Their amplified outputs are fed to a resolver, which through a servomotor 3C, orients a dove prism 9 and, through a rectifier 36, controls the generation of pulses at a frequency dependent on the speed of the movement of the beam over the sheet 12 and the intensity of illumination from the lamp 21. A photo-electric cell in a feedback system can be used to ensure that the lamp intensity responds to the control unit as required. The optical path from the lamp 21, through condenser lens 20, a transparent disc 5 provided with an opaque arcuate wedge, a square diaphragm 4, a relay operated mirror 7, fixed prism 7A, can be combined with one from the lamp 21 through lens 25, relay operated mirror 22, a symbol transparency 24 and lens 26 by means of a prism 27, the paths continuing through the dove prism 9 between lenses 8. The pulse generator can be used to control the operation of the mirrors 7, 22 at regular intervals along the line, the mirror 7 being deflected from 45 degrees to interrupt the beam and create "dashes", the mirror 22 being oriented to 45 degrees to superpose a record of a symbol 29, pre-selected by turning the disc 24 on which the symbols are replaceably stored. To determine the thickness of the line, the size of the aperture 40 of the diaphragm 4 is controlled by hand or by a servomotor 3A in conjunction with a potentiometer 15, Fig. 2 (not shown) set by recorded information or by remote manual control. A double line can be obtained by dividing the beam with the arcuate wedge as it passes through the disc 5, which is turned manually or by remote manual or automatic control to set the space between the lines. The dove prism 9 inverts the beam without changing its direction and is orientated by the servomotor 3C in accordance with the direction of motion to keep'at right angles thereto the square image of the diaphragm 4 when recording a single line, the line of the spaced beams when recording double lines and any images of symbols 29. The invention may be applied to map making.
Patent GB-1472877-A (GB)
Title: Drive device for clamp holder carriages for a continuously operating pilger rolling mill
IPC: H02K11/00
Filed: 1974-05-21
Abstract: 1472877 Pilger rolling mills VALLOUREC (USINES A TUBES DE LOBRAINE-ESCAUT ET VALLOUREC REUNIES) 21 May 1974 [24 May 1973] 22524/74 Heading B3M A driving arrangement for the two work holding carriages 1 and 2 of a pilger rolling mill (for rod or tube) includes driving screws 9 and 12 for intermittently and sequentially feeding the two carriages towards and away from the rolls of the mill, the screws being rotatable in different senses by separate motors. To drive the carriage 1 towards the rolls, for example, the screw 9 is rotated by an hydraulic motor 17 through a clutch 21 and an axially fixed pinion 16 keyed to the screw. To reverse the carriage, the clutch is disengaged and an electric motor rotates the pinion 16 in the opposite sense. The motor 17 is common to both screws, but separate electric motors are provided. The carriages alternately grip a workpiece to feed it towards the rolls, and release it when moved in the opposite direction. A yoke 28 co-operates with nuts 24 carried on the screws and is movable axially by a lever 32 operated by a cam 34. The cam rotates continuously and oscillates the yoke 28. During each movement of the yoke towards the right, it moves a screw 9 and nut 28, and also the carriage 1, towards the rolls. The amplitude of the movement depends on the degree the nut 24 moves axially on the nut during movement of the yoke towards the left. When the carriage 1 has been shifted sufficiently towards the right, the clutch 21 for the screw 12 is engaged and the carriage 2 is moved. Spring loaded jaws 30<SP>1</SP> are used to lock the carriages to slides 3 when the carriages are not being driven by the screws. Hydraulic jacks release the jaws to permit return movement of the carriages to their initial positions.
Patent GB-1049898-A (GB)
Title: Nickel and cobalt based alloys
IPC: C22C19/05
Filed: 1964-06-01
Abstract: A nickel alloy containing:-  .Ni.40-85% .Co.0-28% .Cr.5-25% .Al + Ti (with or without Nb).3.5-12% .Mo and/or W and/or Ta.3-15% .C and/or B and/or Si and/or Zr.0-1% or a cobalt alloy containing:-  .Co.40-85% .Ni.0-28% .Cr.15-30% .Mo and/or W and/or Ta + Nb.5-25% .Ti and/or Al.0-4% .C and/or B and/or Si and/or Zr.0-5% .Also includes Th.0.05-3%
Patent GB-967826-A (GB)
Title: Improved greases
Inventor: MORRIS ARTHUR LESLIE
IPC: C09D5/04
Filed: 1961-06-22
Abstract: A grease composition comprises mineral oil thickened to a grease-consistency with a non-soap thickening agent, and containing 0.1-10 wt. per cent, based on the total composition, of a mixture of saturated fatty acids derived from wool grease. Wool grease fractions which may be used are pale wool grease, wool grease fatty acid, lanolin fatty acid, and wool grease flake stearine, the acids contained in these fractions including hydroxy-substituted fatty acids. Non-soap thickening agents mentioned are carbon black, polyethylene, mixtures of these two, a bentonite clay/didodecyl dimethyl ammonium complex, and other clay/amine complexes.  Optional additives which may be present include phenyl a - and b -naphthylamine, trialkyl phenols, bisphenols, and simple and complex amines (e.g. diphenylamine or phenothiazine). During the grease manufacture a dispersing agent may be present, acetone and propylene carbonate being mentioned.
Patent GB-690677-A (GB)
Title: Improvement in bag closures
IPC: B65B51/07
Filed: 1951-09-28
Abstract: 690,677. Paper bags. ST. REGIS PAPER CO. Sept. 28, 1951 [Nov. 14, 1950], No. 22674/51. Drawings to Specification. Class 94(ii) The bottom end of a multi-ply paper bag is closed by coating a strip of plain (or creped) kraft paper with molten wax (or a mixture of wax and polyethylene), folding the strip about the end of the bag laying on a sealing cord and stitching through the cord and strip. The outside of the strip may be coated with polyethylene. The sewing thread and the sealing cord may be treated with wax, wax and polyethylene, paraffin oil, or wax and paraffin oil. The strip is folded about and sewn to the end of the bag whilst the wax is in a softened state, heating means being provided at the sewing machine if necessary.
Patent GB-996079-A (GB)
Title: 17ª‡,21-substituted methylenedioxy steroids and methods therefor
Inventor: ERCOLI ALBERTO
IPC: C07J21/00
Filed: 1962-06-13
Abstract: The invention comprises steroids having at the 17, 20 and 21 positions the general formula <FORM:0996079/C2/1> wherein R1 represents an alkyl radical containing 1 to 3 carbon atoms and R represents an aliphatic hydrocarbon radical containing 1 to 9 carbon atoms, a cycloaliphatic hydrocarbon radical containing 4 to 6 carbon atoms, an arylaliphatic hydrocarbon radical containing 7 or 8 carbon atoms, a phenyl, a b -carboxyethyl, a b -carbomethoxyethyl or b -carbethoxyethyl radical, and the preparation thereof by reacting a 17a ,21-dihydroxy-20-keto-steroid having no free hydroxy group at the 16-position with an orthoester of the formula R-C(OR1)3 wherein R and R1 have the above significance in the presence of an acid catalyst and in solution in an organic solvent.  The steroids of the above formula may contain at the 3-position a keto or hydroxy group, an alkoxy group of 1 to 3 carbon atoms, an alkoxyloxy group of 1 to 3 carbon atoms or a benzoyloxy group.  Other substituents such as hydroxy, keto, halogen, ether and methyl groups, may be present, for example at positions 1,2,4,6,7,9,11 or 16.  The steroid nucleus may be saturated or have one or more double bonds, for example in the 1 :2, 3 : 4, 4 : 5, 5 : 6 or 9 : 11 positions-particularly at positions 4 : 5, or 1 : 2 and 4 : 5 in which case the preferred steroids having a 3-keto group, an 11-keto or b -hydroxy group, and coupled with the 11b -hydroxy group an a -halogen atom-particularly fluorine, at the 9-position.  Other substituents may occur at the 6- or 16-position, for example a 16a -acetoxy group.  The particularly preferred steroids containing the structure detailed above have the general formula <FORM:0996079/C2/2> wherein R and R1 have the above significance, X represents a keto or b -hydroxy group, Y represents hydrogen or fluorine, W represents hydrogen or fluorine or the methyl group, and R2 represents hydrogen, an a  or b -methyl group or an a -hydroxy group, and the corresponding 1 : 2-unsaturated derivatives thereof.  If the product of the above process contains a 16b -bromine atom, this may be reacted with silver acetate to form a 16b -acetoxy substituent which may then be hydrolysed, for example with potassium carbonate, to form a 16a -hydroxy substituent.  Specifications 963,829 and 996,080 are referred to.