baber/WOPTO huggingface dataset:
Patent GB-888574-A (GB)
Title: Embroidery frame
Inventor: MOTE HAROLD TREVOR
IPC: D05C9/04
Filed: 1957-10-01
Abstract: 888,574. Sewing; sewing machines. BRAYHEAD'(ASCOT) Ltd. Sept. 29, 1958 [Oct. 1, 1957], No. 30695/57. Class 112 A work holder comprises two frame members at least one of which is provided with one or more permanent magnets and the other is made at least in part of magnetic material, whereby said members are urged together by magnetic attraction when they are placed together with fabric positioned therebetween. As shown, the frame members 1 and 2 are in the form of hollow squares. The sides of members 1 are channelshaped in cross section to provide magnetreceiving cavities 3 separated from each other by partitions 5. Each side contains two magnets 4 secured in position by adhesive. The outer wall 7 of the channel is flush with the magnets and is formed with a peripheral flange 7a. The inner wall 8 is higher than the outer wall. Member 1 is made from a plastics material such as polythene or polystyrene. Member 2 is made of steel and fits over the inner wall 8 and rests over the magnets to hold the work fabric 12 there against. Notches 9 are formed in the corners of wall 8 to allow the latter to flex inwardly to accommodate thick fabrics. A work holder may be detachably held in a carrier frame mounted on the frame of an embroidery machine. The carrier frame comprises a flat base 16 formed with a square-shaped opening to each side of which is secured a spring clip 17, the work holder being held by said clips. Base 16 is attached to the machine frame 14 by a hinge 15 having a removable pintle 15a. To accommodate work holders of different sizes adaptor rings may be provided, such a ring fitting within the clips 17 and having similar clips for receiving a work holder of smaller size.
Patent GB-749323-A (GB)
Title: Improvements in or relating to instruments for testing the printing speeds of light-sensitive materials
IPC: G01J1/12
Filed: 1953-11-06
Abstract: 749,323. Sensitometers. MASON & SONS, Ltd., E. N., and WOODHAM, E. Nov. 5, 1954 [Nov. 6, 1963], No. 30731/53. Class 98 (1). A sensitometer comprises two concentric cylinders surrounding a light source, the inner cylinder having an aperture in its periphery, and the outer cylinder, which carries the lightsensitive material, being rotatable round the light source. As shown, a light source 1 is surrounded by two cylinders 2, 8. The outer cylinder 2 carries the light-sensitive material 3 positioned over an aperture 5 and is connected to hub 17 which is rotated by pulleys 7, 13 and belt 6. The inner cylinder 8 has a stepped aperture 11 and is secured to a shaft 21 which can also be rotated by pulleys 10, 14 and belt 9, preferably in the opposite direction to the outer cylinder. According to the Provisional Specification, the sensitive material 3 may be located on the inner wall of cylinder 2.
Patent GB-501776-A (GB)
Title: Process for producing valuable liquid hydrocarbons from normally gaseous olefinic hydrocarbons
IPC: C07C2/18
Filed: 1937-11-09
Abstract: 501,776. Polymerizing olefins. MOND, A. L., and UNIVERSAL OIL PRODUCTS CO. Nov. 9, 1937, No. 30784. Addition to 464,671. [Class 2 (iii)] In a process for producing normally liquid hydrocarbons from a normally gaseous hydrocarbon mixture containing iso-butylenes and n-butylenes, e.g. mixtures produced in oil cracking operations, such as stabilizer refluxes, or B-B fractions, the mixture is subjected to selective polymerization by contact with solid phosphoric acid catalysts at a temperature of 20-66‹ C. in a first stage to polymerize substantially only iso-butylenes and of 66-121‹ C. in a second stage to polymerize n-butylenes, sufficient pressure being maintained in each stage. to retain the butylenes in liquid phase. The pressure in the first stage is preferably 3À4-10 atmospheres and in the second 10-24 atmospheres. Some mixed polymerization between the iso and n butylenes may take place. If the initial gases contain propylene this may be polymerized in a third stage at higher temperature, preferably 205- 260‹ C. and at superatmospheric pressure, e.g. 6À5-20 atmcspheres. Hydrogen sulphide, low boiling mercaptans, dienes and other gases which may interfere with the catalyst may be removed from the gas mixture before treatment. The liquid polymer products may be subjected to ordinary chemical treatments e.g. with sulphuric acid, caustic soda or sweeteners, or small amounts of inhibitors may be added. The iso-octenes produced in the first stage and the octenes of the second stage may be hydrogenated in known manner to octanes, useful as fuels or as anti-knock blending fluids. Details are givan of the preparation and regeneration of the catalysts. In examples : (1) a mixture of 16À8 per cent isobutylenes, 36À0 per cent n-butylenes and 47À2 per cent nbutane was passed at 38‹ C. and 6À8 atmospheres pressure through a bed of catalyst comprising 72 per cent of phosphoric acid (approximating the pyro acid in composition) and 28 per cent kieselguhr. After removal of iso-butylene polymers, the residual mixture was passed at 93‹ C. and 17 atmospheres pressure through the catalyst to polymerize the n-butenes ; (2) a stabilizer, reflux from a cracking plant containing 5 per cent isobutylene, 10 per cent nbutylenes and 25 per cent propylene was passed at 21‹ C. and 13 atmospheres downwardly through a tower containing catalyst granules formed by adding 65 per cent of pyrophosphoric acid to kieselguhr and mixing at 160‹ C. The resulting liquid was stabilized by heating to 66‹ C. to vaporize the unpolymerized three and four carbon atom olefines, which were then condensed and passed to a second tower at 93‹ C. and 17 atmospheres pressure. The resulting liquid polymers were separated and residual propylene passed to a third tower at 232‹ C, and 6À8 atmospheres pressure.
Patent GB-233270-A (GB)
Title: Improvements in or relating to railway points or switches
IPC: E01B7/04
Filed: 1924-12-23
Abstract: 233,270. Bochumer Verein f³r Bergbau und Gussstahlfabrikation. June 3, 1924, [Convention date]. Point-tongues, mounting of. - The heel a of the tongue rests in a chair b having a pivot c and is secured to the chair by one or more clamping cones or wedges d acting between an edge of the rail and the adjacent edge of the chair. The chair and rail edges are recessed, to receive the cones.
Patent GB-988948-A (GB)
Title: Fire inhibitor and extinguisher
IPC: B64D37/32
Filed: 1961-08-30
Abstract: 988,948. Preventing and minimizing fires. D. POWELL. Aug. 30, 1961, No. 31164/61. Heading A5A. In a method of preventing and extinguishing combustion in or of the effluent from an enclosure containing inflammable liquid, input heat is intercepted and absorbed to cause emission of non-inflammable vapour from a non- inflammable liquid held within or adjacent the enclosure, the non-inflammable vapour being mixed with the inflammable vapour flowing out of the enclosure or the air entering the enclosure so that the resultant mixture is non- inflammable. In one embodiment, Fig. 1, the inflammable liquid 12 is stored in a container 10 which has a combined cover and interceptor 16 preferably constructed of a highly conductive metallic material painted black, spaced from the container 10 by a heat insulating layer 26. Non-inflammable vapour from the liquids held in reservoirs 34, 38 mixes at 30 with the inflammable vapour passing through passage way 28. If a temperature rise causes a sudden pressurization of the liquid in reservoir 38 the liquid is forced out of a spray nozzle 46 the spray from which mixes with the inflammable vapour. In another embodiment, Fig. 3, an open-top storage tank has a floating cover 52 which comprises a reservoir 54 having apertures 60 in the side walls thereof. A top wall 64 painted black defines a mixing chamber 66 with the side walls of the tank and has heat conducting fins 70. In a further embodiment, Fig. 4, inflammable vapour from a horizontal tank is rendered non-inflammable by non-inflammable vapour passing via ducts 88, 90 from reservoirs 84, 86. In another embodiment (not shown) a  reservoir of non-inflammable liquid is provided within the wing of an aeroplane. Radiant heat from hostile engine fire causes non-inflammable vapour to pass through ducts from the reservoir and mix with the air surrounding the engine and fuel tanks. Jettisoned fuel can also be rendered non-inflammable by causing non-inflammable vapour to flow from the reservoir via a duct to a point adjacent and preferably ahead of the fuel outlet.
Patent GB-1399379-A (GB)
Title: Process for the preparation of a hydrocarbon conversion catalyst
IPC: C10G45/64
Filed: 1972-07-04
Abstract: 1399379 Hydrocracking; selective hydrocracking NIPPON OIL CO Ltd 4 July 1972 [14 July 1971] 31172/72 Heading C5E [Also in Division B1] Hydrocarbon feeds boiling at at least 200‹ C. are hydroconverted in the presence of a catalyst which comprises a Group VI, VII or VIII metal or compound thereof supported on a silica-alumina/crystalline aluminosilicate composite in which the silica-alumina has been prepared by reacting a silicon compound with a water-soluble aluminium compound in aqueous medium at pH 10-14, acidifying to pH 1-5, basifying to pH 5-9, washing and drying. The aluminosilicate having had at least 60% of exchangeable alkali metal ions replaced by hydrogen ions, hydrogen ion-forming ions or polyvalent metal ions and being added at any stage before drying. The hydroconversion may be at 100-600‹ C., 10-250 kg./cm.<SP>2</SP> gauge, LHSV of 0À1-20 and 100-4000 litre H 2  per litre of hydrocarbon feed. Examples describe the treatment of propane-deasphalted vacuum residual oil to give a dewaxed lubricating oil and the hydrocracking of an atmospheredistilled residual oil and of a prehydrogenated vacuum-distilled fraction oil.
Patent GB-1219997-A (GB)
Title: Jaw crushers including feed mechanisms and methods of operating them
IPC: B02C1/02
Filed: 1969-06-20
Abstract: 1,219,997. Jaw crushers. ENVIROTECH CORP. 20 June, 1969 [12 July, 1968], No. 31345/69. Heading B2A. A jaw crusher comprises jaws 90, 92, Fig. 8, mounted for eccentric motion, having linkages 324, 332, 328 340, 344, 336, 352, 348 to reciprocate a feeder 18, Fig. 1, in a direction opposite to the reciprocating component of the eccentric motion of the jaw or jaws. The jaws 90, 92 are driven by electric motors and synchronized by a cross shaft 112, Fig. 7, and shafts 82, 84 having eccentric portions 86, 88. Vibration is reduced by offset counter-balance portions 94. The jaws have removable reversible wear plates 120, 122. Toggle linkages 130, 132 are provided at the forward end of the jaws, as described in U.S.A. Specification 3,479,904, and tie rod devices 152, 154. The feeder and classifier arrangement comprises an oscillatory screen 212, 214, 216, 218, and belt conveyor 226, Fig. 7, mounted on a frame comprising beams 300, 302. The forward end of the screen has a centre platform 254 to support material between the crusher faces. Crushed material falls on to a surface 232 of the belt 226.
Patent GB-1500724-A (GB)
Title: Mould fluxes
IPC: B22D27/06
Filed: 1975-05-21
Abstract: 1500724 Casting mould flux FOSECO INTERNATIONAL Ltd 21 May 1975 [16 July 1974] 31461/74 Heading C7M A particulate mould flux comprises in wt. per cent 10-70 CaO with a moisture content # 1À5, 1-20 carbon, 1-30 Na 2 CO 3  and 5-40 lightweight filler such as expanded perlite or vermiculite, diatomaceous earth, pozzolana or calcined rice husks. The carbon may be crushed coke, graphite or carbon black and the CaO and Na 2 CO 3  particle size may be 0À05-0À25 mm with the filler having a loose poured bulk density of 0À04-0À2 g/cc. The flux is used in metal casting where the flux is placed in the bottom of a mould and a molten metal such as high C killed steel or medium C steel is poured into the mould at 1550‹ or 1580‹C.
Patent GB-1407396-A (GB)
Title: Reversible plough operating mechanism
IPC: A01B3/421
Filed: 1972-10-04
Abstract: 1407396 Reversible ploughs C V R DOWDESWELL 4 Oct 1972 [6 July 1971] 31552/71 Heading A1B [Also in Division F2] A reversible plough includes a mechanism whereby the plough frame is positively supported at its mid-way over-centre position such that stress is relieved from the plough turning hydraulic ram.  Reversal is effected by rotation of a shaft 5 by the pivoting of an arm 6, connected to plough share boom 2 from its Fig. 2 position to its Fig. 3 broken line position through the retraction and expansion of hydraulic ram 25. At the mid-way over-centre position (full line Fig. 3) a pin 60 on the arm 6 engages within the mouth of a pivoted claw-like lock 24 and abuts claw arm 24d. The claw is pivoted to the ram cylinder at 29 and to an inverted, generally U-shaped support 40 at 30. Continued movement of the arm 6 to its Fig. 3 broken line position cannot occur until the ram is extended to disengage pin 60 from claw arm 24d. Upon return of the arm 6 the pin engages with claw arm 24e in a similar manner. Additional over-centre support may be given by the engagement of a spring biassed pivoted pawl 31 on arm 6 with ratchet teeth 36 upon claw 24. The support 40, which aids in the connection of the plough to a tractor comprises two spaced but connected inverted U-shaped members between which the claw is pivoted at 30. The claw likewise comprises two spaced but connected members between which the ram is pivoted at 29.
Patent GB-1359362-A (GB)
Title: Process for preparing conjugate filaments
IPC: D01D5/30
Filed: 1971-07-06
Abstract: 1359362 Crimped yarns HERCULES Inc 6 July 1971 [8 July 1970] 31659/71 Heading B5B [Also in Division D1] A process for preparing a helically crimped yarn comprises conjugately spinning at least two propylene polymer components having different molecular weight distributions to form composite filaments, gathering the filaments into a yarn, subjecting the yarn to a radiantly heated environment having a temperature of 120‹ to 200‹ C. while winding the yarn into packages, drawing the yarn by 200 to 400% and heat relaxing the yarn. As shown, yarn ends 2, while being wound to form packages 5, are heated by radiant heaters 7. Pneumatic piston-cylinder unit 15 operates via rod 17 to move the heaters to maintain constant the distance between the heaters and the periphery of the expanding packages. The package diameter is measured by directing an air jet at one package, the back pressure induced by the expanding package in an air pipe adjacent the jet serving to control the air valve of unit 15. Alternatively the package diameter may be measured by an electronic device, e.g. a photo-electric device.
Patent GB-255714-A (GB)
Title: Improvements in and relating to rotary pumps
IPC: F04D3/02
Filed: 1925-12-15
Abstract: 255,714. Mumford, Ltd., A. G., and Tait, E. B. Dec. 15, 1925. Worm pumps; starting, facilitating.-A pump has a conical rotor 2 with a worm upon it arranged inside a conical casing 1, the gap between the casing and the rotor being constant throughout its length on uniformly convergent from the inlet end 14 to the discharge end 11 as shown. The side of the casing or of the rotor may be curved and a uniform or variable cross-section of the pump passage may be obtained by varying the depth of the worm which may be a single or multiple thread. The inlet branch 10 terminates at a point above the casing 1 so that water is trapped in the casing when the pump is stopped and so assists the re-starting of the pump. A connection 13 between the inlet 10 and the suction end 14 of the pump prevents the water from syphoning out of the inlet 10. To seal the fine clearance between the tip of the worm and the casing 1 during starting, a pipe 15 connects any convenient point 16 in the discharge outlet to the point 17 on the suction side of the pump and a cock 18 is provided to open and close the pipe.
Patent GB-1504344-A (GB)
Title: Magnetron
IPC: H01J25/50
Filed: 1975-07-29
Abstract: 1504344 Magnetrons MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 29 July 1975 [3 Aug 1974 26 March 1975 (2)] 31725/75 Heading H1D The permanent magnet or magnets of a magnetron are of a manganese-aluminiumcarbon alloy, and are either disposed within, or form part of, the envelope. In Fig. 3, the truncated cone-shaped magnets 10a and 10b are mounted within the envelope 11, which is formed of an iron-copper laminate, and acts both as anode cylinder and as magnetic yoke. In Fig. 7, a single cylinder magnet 12 forms the anode cylinder, the cathode support and leads passing out through the pole piece 20b and a sealing insulator button 40. In Fig. 8, the magnets 14a and 14b are coupled by the yoke 2, thermal conduction to the magnets from the anode cylinder being reduced by hermetically sealing both of them to interposed glass or aluminium oxide ceramic rings 15a, 15b, Fig. 8 (or 17a, 176, Fig. 10, not shown) or very thin metal rings (16a, 16b, Fig. 9, not shown). Alternatively, the anode cylinder may be of reduced thickness adjacent the seal.
Patent GB-652147-A (GB)
Title: Substructure for well-drilling rigs
IPC: E21B15/00
Filed: 1948-12-08
Abstract: 652,147. Drilling-rig substructures. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Dec. 8, 1948, No. 31756. Convention date, Dec. 29, 1947. [Class 78 (iv)] A portable drilling rig substructure comprises two spaced base trusses resting on the ground on either side of the well bore or well bore site, at least one floor truss mounted on the two base trusses substantially at right angles thereto and situated wholly or partly under or within the derrick, clamping means for detachably fixing the floor truss or trusses to the base trusses, and flooring substantially covering the floor truss or trusses to form an operating platform thereon. Two base trusses 15 and 16 are mounted on concrete strips 21 and 22 and support floor members 17 and 18 comprising a trussed framework. The floor and base trusses may be adjustably clamped together and the tops of the floor trusses covered with flooring. A derrick 19 is secured to the top of the floor. The rotary table 26 and its driving member 46 are secured to floor trusses, the table may be mounted on beams 47 and 48 so that it is level with the flooring. The draw-works 49 and power unit 50 are mounted on base trusses. A cat head 53 is mounted above the drawworks. The drill-pipe is racked on the ground by removing part of the flooring to form an opening. The blow-out 36 and drilling riser 59 are set. When the bolts 61 are removed connecting the beams 48 to the floor trusses the table 26 is supported directly on the riser 59. In a modified form three spaced trusses are mounted on two base members. The rotary table is fixedly mounted within one of the floor trusses. The drill pipe is racked on the ground, or at any height, through a bay in the flooring between the floor trusses, and the draw-works can be mounted on the operating floor within the derrick.
Patent GB-1299604-A (GB)
Title: New process for the preparation of n-(2-diethylaminoethyl)-4-amino-5-chloro-2-methoxybenzamide
Inventor: MURAKAMI MASUO
IPC: C07C233/12
Filed: 1969-11-20
Abstract: 1299604 Benzamide derivative YAMANOUCHI PHARMACEUTICAL CO Ltd 20 Nov 1969 [2 Dec 1968 9 Dec 1968 4 April 1969] 31799/72 1299603 Heading C2C N - (2 - Diethylaminoethyl) - 4 - amino - 5- chloro-2-methoxybenzamide is obtained either by reacting 4-amino-5-chloro-2-methoxybenzoic acid with N,N-diethylethylenediamine in the presence of phosphorus trichloride. 4 - Amino - 5 - chloro - 2 - methoxybenzoic acid is obtained by halogenating 4-amino-2- methoxybenzoic acid.
Patent GB-957411-A (GB)
Title: Improvements in or relating to centreless grinding machines
Inventor: FOXALL GERALD GAINSFORD
IPC: F16C29/06
Filed: 1959-09-18
Abstract: 957,411. Rectilinear-motion bearings. BIRMINGHAM SMALL ARMS CO. Ltd. Sept. 19, 1960 [Sept. 18, 1959], No. 31804/59. Heading F2A. [Also in Division B3] The trueing diamond 18 of a centreless grinding machine is slidably mounted for axial movement in a cross-slide 7, both sliding movements being facilitated by the use of rectilinear-motion ball bearings 15, 10 and 11, preferably of the re-circulating type in which inner and outer groups of balls are circumferentially arranged in parallel channels joined by part-circular end-portions. The bearings 10, 11 are of segmental form to provide for the support bolts of the guides 5, 6 of the lateral slide 7.
Patent GB-1448662-A (GB)
Title: Process for treating a steel surface
IPC: C23C2/08
Filed: 1975-07-30
Abstract: 1448662 Coating steel with Sn by hot-dipping; recovering Sn; electro-stripping Sn AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 30 July 1975 [14 Aug 1974 20 June 1975] 31922/75 Headings C7B C7D C7E and C7F A steel, which may contain Ni and Cr, is diffusion coated with Sn by hot-dipping (400 to 700‹C) and the surface layer (Fe Sn 2 ) removed to leave the Fe Sn layer exposed. The Sn bath may contain Ni, Mg, and Cr. On removal from the bath the cooling rate may be 100‹C per hour. The layer is removed by e.g. grinding, pickling or electrochemically. Pickling may be in nitric acid containing hexamethylene tetramine. The electro-chemical removal may be at constant or variable voltage in sulphuric acid. A reference electrode may be used to control the time of the treatment. The tin may be recovered by cathodic reduction on a Pt electrode, after conversion of the stannic sulphate to stannic chloride by hydrochloric acid. Alternatively the tin may be recovered by direct reduction using Zn, Al or Mg as reducing agents.
Patent GB-1013741-A (GB)
Title: Improvements in or relating to weighing apparatus
Inventor: HARVISON RONALD ERIC
IPC: G01G13/285
Filed: 1962-08-21
Abstract: 1,013,741. Batch weighing. J. BIBBY & SONS Ltd. July 26,1963 [Aug. 21,1962],No. 31974/62. Headings G1N and G1W. In a system for filling bags with a required weight of material from a conveyer, a predetermined mass of the material is placed in a filling hopper and the weight made up to the required amount from a dribble feeder, under the control of an electrical load cell. The system is initiated by a signal S1 (Fig. 1) which allows material from a belt conveyer 11b to be delivered to container 11a, and also sets a timer T1. After a predetermined interval, a signal S2 is applied to the conveyer 11b to stop it, and a signal S3 is sent through an interlock 1 to open the doors 17, 18 of container 11a transferring the material to a weighing hopper 13. A timer T2 then applies a signal S4 to close the doors 17, 18: a signal S7 to restart timer T1 and the supply of material to container 11a: a signal S16 to start a weight make-up dribbler 15: and a signal S6 to start a further timer T3. Timer T3 after its delay period operates a dashpot device 34, 35 which allows a weigh beam 12 to take the load. A load cell 36 produces a weight signal indicative of the difference between the weight of the hopper 13 and the counterweight 28, which is amplified at A, and, when it is reduced to zero, stops the dribble feeder 15, opens the doors of the weighing hopper 13 and sets a timer T4, which, after a delay, recloses the doors, resets the dashpot device and enables the interlock I so that the next load can be delivered from container 11a into the weighing hopper 13 for the next cycle. The weigh beam 12 is preferably mounted by a crossed spring arrangement 21, 22 the weighing hopper 13 and a counter weight 28 being similarly mounted on the beam. The make-up material is added to a pan 16 which is emptied into the hopper 13 by an arm connected to the doors. Specification 1,013,742 is referred to.