baber/WOPTO huggingface dataset:
Patent GB-627575-A (GB)
Title: An improved apparatus for moulding plastic materials
IPC: H02P1/20
Filed: 1946-07-22
Abstract: 627,575. Moulding lenses &c. from thermoplastic material. KODAK, Ltd. July 22, 1946, No. 21857. Convention date, Sept. 4, 1943. [Class 87 (ii)] [Also in Groups XX, XXIII, XXXV and XL (b)] Apparatus for moulding articles particularly optical elements with highly polished surfaces from thermoplastic materials includes means for surrounding the heated moulds with an inert or reducing gas to prevent oxidation of the mould surfaces. The moulds 51, heated by electrical elements 60 thermostatically controlled, are enclosed in a cylindrical chamber 3 of heat resisting glass having its ends closed by glass plates 6, 9 through which pass the tubes 30, 31, on which the moulds are mounted. The cylinder 3 has an opening 4 in its side wall formed by a tubular member 12 inserted in a plate 14 clamped to a side extension of the chamber 3 by bolts and a clamping ring 17. Pipes 20, 21 and 22 through which cooling fluid is circulated surround the plates 6, 9 and 14. The tubes 30, 31 slide vertically in the bearings 28, 29 in the end plates 6, 9, the bearings having seals 32, 33. The outer ends of the tubes 30, 31 are closed and inert or reducing gas (e.g. hydrogen) is fed into them through pipes 40, 55 and passes into the moulding chamber through holes 80, 81 and out through the opening 4. A gas jet 56 is mounted below the opening 4 and is fed with air if the gas in the chamber is hydrogen, which is thus burnt to form a flame curtain over the opening 4. If the gas in the chamber 3 is inert, the jet is fed with a combustible gas. The lower tube 30 is normally fixed but is adjustable in a bracket 37 fixed on the frame of the apparatus. The upper tube 31 is carried in a bracket 41 which slides on a guide way 42 and is reciprocated by a pneumatic piston 47 spring urged upwards and controlled by a foot pedal 53. An adjustable stop 45 limits the downward movement of the braket 41. A blank to be moulded, on the end of a stick of the same material, is inserted through the opening 4, placed between the moulds and the upper mould brought down. The moulded article is removed in the same way.
Patent GB-185936-A (GB)
Title: Improvements in or relating to window sashes
IPC: E06B3/52
Filed: 1921-08-18
Abstract: 185,936. Holmes, A. Aug. 18, 1921. Hinges.-One or both hinges of a casement window which is first raised and may then be turned inwardly have the parts A in the frame cut away to form a slotted barrel with projections A' and the part B on the sash formed with openings B<3>, which engage the projections A<1> and permit turning when the sash is raised. A portion of the beading is hinged to allow the sash to open, and springs may be applied to take the weight of the sash and lessen shock.
Patent GB-155002-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F01L1/12
Filed: 1919-09-05
Abstract: 155,002. Ladetto, E. Sept. 5, 1919. Valve-gear; regulating.-A four-stroke-cycle engine comprises two cylinders 1, 1<1> in the same horizontal plane, but slightly displaced laterally in opposite directions from the central vertical plane. The connecting-rods 6, 6' are connected by ball bearings 7 to cranks 5, 5' 180 degrees apart on the crank-shaft 3 and joined by a thin web 3<1>. The ball-bearings 7 are secured on the cranks by two slightly conical members 8, 9, 8<1>, 9<1> held in position by screws. Inlet valves 12, 12' and exhaust valves 13, 13<1> are actuated by two cams 19, 20 by means of levers 16, 16<1>, 18, 18', which may be curved to enable each pair to bear on one cam, and plungers 14, 14<1>. The valve-gear is arranged symmetrically about the central horizontal plane of the engine. The exhaust valves may be lifted by link-work 24, 25, 26 .actuated by a rod 27.
Patent GB-576071-A (GB)
Title: Production of methyl methacrylate compositions
IPC: C08F220/14
Filed: 1943-12-31
Abstract: Polymerizing methyl methacrylate, in the presence of an amount not exceeding 3 per cent of an unsymmetrical olefinic compound containing the grouping -CH=CCl- and being free from both chromophoric and functional groups which inhibit the polymerization of methyl methacrylate, by heating under autogenous pressure at a temperature above 100 DEG  C. a dispersion of the monomers in a non-solvent liquid such as water.  Specified olefinic compounds are trichlorethylene, 2-chloropropene, 1-chloro-3-hydroxypropene-1, and methyl alpha-chloroacrylate.  In the preferred method, benzoyl peroxide and the halolefin are dissolved in methyl methacrylate, the solution suspended in water containing a dispersing agent (e.g., the sodium salt of polymethacrylic acid) with a buffering agent, agitated and polymerized.  Other catalysts such as di-n-dodecyl peroxide, diethyl peroxide, hydrogen peroxide, and persulphuric acid and its salts, may be used.  Plasticizers, lubricants, dyes or pigments may be added during polymerization or later.  The products may be used as moulding powders and may be extruded into tubing, filaments and rods. In example, the following mixtures were polymerized: (1) methyl methacrylate, trichlorethylene, octadecyl alcohol, sodium salt of polymethacrylic acid, sodium hydrogen phosphate, water and benzoyl peroxide; (2) as in (1) using 2-chloro-propene instead of trichloroethylene and no octadecyl alcohol; (3) as in (2) using 1 - chloro - 3 - hydroxypropene - 1 instead of 2-chloro-propene and (4) as in (2) using methyl-alphachloroacrylate instead of 2-chloro-propene.
Patent GB-387348-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B15/04
Filed: 1931-08-01
Abstract: 387,348. Sewing-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. and BATES, A., Union Works, Belgrave Road, Leicester. Aug. 1, 1931, No. 21982. [Class 112.] Multiple-needle machines ; boot-sole stitching and lasting machines.-A curved hooked needle sewing-machine, especially for stitching veldtschoen, of the character described in Specification 356,883, has two needles, a single shuttle 34 and other stitch-forming devices co-operating to form two parallel rows of lock stitching. Except for the duplication of the needle, the stitch-forming and thread-handling devices are as described in Specification 7793/92, [Class 112, Sewing &c.], the awl being duplicated and the looper being modified to lay a thread in the hook of each needle. The needles 1, 2 are carried in the usual segment and work in a guide 4 which is moved forwardly and downwardly to support the needles as they enter the holes made by the awls 6, 7. The rear awl 6 enters the work before the front awl to decrease the force required for penetration and to minimize squeezing the work. The looper operating mechanism is the same as that described in Specification 7793/92, but to enable it to handle two threads and lay them in their respective needle hooks, the looper is constructed with two apertured bosses 9, 10, Fig. 3, in the same horizontal plane. The tension, pull-off and thread-clamping devices are the same as those described in Specification 7793/92, except that the latter are operated by a single cam lever 19. Both thread clamping devices can be adjusted together by the link 20. The seam formed is shown in Fig. 6, two parallel rows of needle thread stitches 35, 36 appearing on the upper margin of the upper and a zig-zag shuttle thread 37, 38 appearing on the under surface of the margin to be covered by the usual cemented-on tread sole of crape rubber &c. A sole straightening tool 40 such as described in Specifications 20047/14 and 176,496, [both in Class 112, Sewing &c.], may be provided. Also, a device for bedding the upper into the angle between the sole margin and the last, similar to that described in Specification 731/15, [Class 112, Sewing &c.], may be provided. In place of the upper pulling pincers described in the last mentioned Specifications, simple means may be provided to pull the upper intermittently to the last. Such means are shown in Fig. 4. A toothed foot 41 engages the margin of the upper in the angle of the sole and last and is moved first upwardly to press the upper against the sole margin and then rearwardly to pull the upper frictionally over the sole margin snugly to the last, then downwardly away from the upper and finally forwardly. The foot is formed and lever 42 operated by the linkages 43, 48, 47, 57 and eccentric on the main shaft 56.
Patent GB-1436542-A (GB)
Title: Separation of gases
IPC: C01B32/40
Filed: 1972-05-10
Abstract: 1436542 Separating gases AIR PRODUCTS & CHEMICALS Inc 10 May 1973 [10 May 1972] 21984/72 Heading F4P A method of obtaining carbon monoxide (CO) from a pressurized feed stream containing hydrogen, CO, not more than 1 mole per cent of CO 2  and not more than 1 mole per cent of water vapour and possibly some nitrogen and methane comprises freezing out the CO 2  and water vapour in a heat exchanger E101 having two sets of passages 60, 61, the feed stream in one passage being cooled by a hydrogen rich stream at a lower pressure than the feed stream, in the other passage, the exchanger being derimed by reversing the connections to the exchanger periodically. The cold feed stream is led via line 16 to a methane wash column 17, from the top of which issues the hydrogen-rich stream which is work-expanded at 58 before effecting the cooling in exchanger E101. The liquid bottoms from column 17 are reduced in pressure in two stages into separators 20, 21, from which gaseous hydrogen is removed and fed through line 36 to exchanger E101. The liquid from separator 21 is partially vaporized in exchanger E104 and fed to a distillation column 26 to separate CO from methane. The CO which forms a heat-pump circuit is fed via line 37 to exchanger 102, some being branched through exchanger E101, the recombined streams at ambient temperature being compressed and removed as product, or further compressed, cooled in exchanger E102 and liquefied in reboiler E103, some of this liquid being refluxed to column 26, the remainder being expanded at valve 52, warmed in exchanger E104 and, partially vaporized, enters separator 54, the liquid from these cooling the column 17, the gas being recycled to the heat-pump circuit. The liquid methane from column 26 is compressed at 29 cooled in separators 21, 20 and exchanger E104 and fed to the wash column 17.
Patent GB-693298-A (GB)
Title: Improvements in or relating to blood transfusion apparatus
IPC: A61J1/00
Filed: 1950-09-06
Abstract: 693,298. Bottles etc.; stoppers &c. FREEMAN, W. S. Dec. 3, 1951 [Sept. 6, 1950], No. 21995/50. Classes 125(i) and 125 (iii). [Also in Group VI] A blood transfusion bottle 10 has a self-seal rubber stopper 11 secured by a cap 12, the stopper on its underside having a number of tubular extensions 16, 17, Fig. 4. The extension 16 has a groove 26 to receive the flange 25 of a small container 19, while the other extensions receive open ended tubes 20, 21 which act as guides for hypodermic needles 29. The top of the stopper has marks to indicate the position of the tubular extensions with the location of the container 19 specially indicated at 23. The container 19 is seated from the remainder of the bottle and is filled separately so that blood samples can.be extracted therefrom without unsealing the main bottle 10.
Patent GB-839488-A (GB)
Title: Improvements in or relating to apparatus for retreading tyres
Inventor: RICHARDSON ARTHUR EDWARD
IPC: B29C33/76
Filed: 1957-07-12
Abstract: 839,488. Retreading tyres. PARK, H. B., and SASLOVE, M. July 12, 1957, No. 22090/57. Class 87(2). An inflatable rubber bag 40 for retreading a tyre in a two-part mould 12, 14, heated by steam pipes 20, or in a band type mould is made of such a shape that it only presses against the tread of the tyre. The bag is held against the tyre by a rim 42 comprising a series of arcuate sections 43 connected together by pins 80, and forced outwardly against the bag by a pivoted clamping tool 94. An axial bead 62 on the bag engages a groove in the rim to locate the bag with respect to the rim. The bag is inflated by either air or steam through a valve 58. A valve 60 provides a bleed, when the bag is used with steam. When air is used, one of the valves may be plugged. The junction between the tread and side wall parts of the tyre is engaged by an annular ring 36 separated from the mould by annular air gaps 38 to prevent the side walls from being heated. The mould sections are retained between top and bottom plates 22. In a modification, Figs 4 and 5 (not shown), larger tyres may be accommodated in the mould by placing inserts between the mould sections.
Patent GB-203498-A (GB)
Title: Improvements in apparatus for the treatment of sewage and the like
IPC: B01D29/00
Filed: 1922-08-14
Abstract: 203,498. Roggers, A. E. Aug. 14, 1922. Plant. - Sewage is subjected to successive maceration, sedimentation and filtration, being passed from one stage of treatment to the next by the intermittent influx of liquid to the primary treating means. The liquid passes under gravity into the closed vessel through a pipe 2 extending below the level of a screen 3, and thence through a, siphon 5, having a cage screen 6 at its inlet end, to the first settling-vessel 4. The liquid is further passed through a second settling-tank 7, and filters 10, 13, 17 to a discharge pipe 19. The filters 10, 13 are charged with coke and provided with porcelain or like elements 12, 15 at the lower end.
Patent GB-410082-A (GB)
Title: Improvements in or relating to welding
IPC: B23K11/24
Filed: 1932-08-06
Abstract: 410,082. Electric welding. BUDD MANUFACTURING CO., E. G., 2500, Hunting Park Avenue, Philadelphia, U.S.A.- (Assignees of Ragsdale, E. J. W.; Curren Terrace, Norristown, Pennsylvania, U.S.A.) Aug. 6, 1932, No. 22115. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 8, 1932.] Drawing to Specification. [Class 83 (iv).] In electrically welding steel, aluminium, &c., particularly in spot welding stainless steel in aircraft construction, electrical energy is applied to the joint in excess of that required to make the joint but for a time less than that required for the energy to build up to a maximum. A transformer having a maximum capacity in excess of the power absorbed is used, but the time periods are of the order of <1>/20 to <1>/1000 of a second, preferably between 1/200 and <1>/500 of a second, so that the transformer does not build up to its full capacity. The welding operation is thus independent of the variation in the source of supply and less time is used than would be required to store sufficient heat in the surrounding metal to prevent rapid quenching and the physical characteristics of the metal are substantially unimpaired. An instantaneous time switch is used. Specification 397,157 is referred to.
Patent GB-587958-A (GB)
Title: Improvements relating to the insulation of high voltage electrical apparatus
IPC: H01F27/20
Filed: 1944-11-09
Abstract: 587,958. Magnetrons. BRITISH H THOMSON-HOUSTON CO., Ltd., and MELVILLE, W. S. Nov. 9, 1944, No. 22122. [Class 39 (i)] [Also in Group XXXV] high voltage transforrner suitable for producing short duration pulses for R.D.F. equipment embodying magnetrons, comprises windings 2 mounted on ceramic or glass' pillars 4 supported between insulating end-plates 5 abutting against the yokes of a core 1 and is enclosed in a hermetically - sealed casing evacuated to the order of 'one-hundredth of a micron. The casing comprises a copper mounting base 6 having tapered rings 8, 10 to which are sealed glass covers 15, 11. Thimbles 13, 16 are provided for sealing the input and output leads. The transformer and magnetron may be enclosed in a single evacuated case. Specification 547,074 is referred to.
Patent GB-762633-A (GB)
Title: Improvements in and relating to a device for the developing, fixing and washing of cinematograph films in daylight
IPC: G03D13/04
Filed: 1954-07-29
Abstract: 762,633. Photographic developing apparatus. COMPAGNIE, DES MONTRES. LONGINES FRANCILION SOC. ANON., and MADER, P. E. July 29, 1954 [Sept 9, 1953], No. 22175/54. Class 98(2) In apparatus for developing fixing and washing kinematograph film in daylight a tank 2 is divided into compartments containing the various treating liquids required and a light-tight container 10 for the film 13 is moved to position an opening 21 therein successively over riserpipes 6 provided one in each tank compartment, the container 10 being connected by a pipe-line 24, 17 to, a source of compressed air which on coincidence of the opening 21 and pipe 6 issues into the tank compartment through coincident apertures: 4 and 20 and forces the liquid up the pipe 6 and into the container 10. Preferably the film 13 is wound on a drum 11<SP>1</SP> which may be rotated by a handle 14 to wet the whole of'it. A rod 14<SP>1</SP> pivoted at 15<SP>1</SP> rests on a helical rib 12 on drum and. guides the film on to it from magazine 15. As shown in Fig. 1 the air pressure is effected by a bellows 16 actuated by pressure on a knob 18, the liquid remaining in the container 10 as long as the knob 18 is depressed. The tank 2 is surrounded by a thermostatic tank 1 and. is divided into five compartments and the container 10 is positioned over each in turn by engagement of a pair of pins 22 with a pair of notches 8. Packing is provided between the end 20 of the pipe 24 and the hole 4 and between the opening 21 and the hole 5 and a fluid-tight seal is effected by the pressure produced by resilient means engaging grooves 9 in rails 7.
Patent GB-1236641-A (GB)
Title: Improvements in or relating to supports
Inventor: CIELUCH HENRYK
IPC: F16L3/205
Filed: 1968-05-10
Abstract: 1,236,641. Pipe support. BRITISH INDUSTRIAL ENG. CO. (STAFFS) Ltd. 12 May, 1969 [10 May, 1968], No. 22203/68. Heading F2S. A variable spring support, e.g. for a pipe is locked during installation by pins 29, which extend through nuts 27, lodged in slots 26 in the support casing 10, and enter apertures 25 in lugs 24 on the load-bearing plate 19 which rests on the upper end of a helical spring 21. The nuts 27 are adjusted in the slots 26 until, with the pins inserted, the plate 19 exerts the desired precompression on the spring. Then the nuts are welded in position. When the support is required to resiliently support a load the pins 29 are withdrawn and the spring 21 affords a variable support. The apertures 25 may be elliptical to allow for misalignment, and the pins 29 may have a threaded shank and a plain portion.
Patent GB-532891-A (GB)
Title: Improvements in or relating to metal bonded abrasive articles
IPC: B24D3/08
Filed: 1939-07-31
Abstract: 532,891. Abrasive articles. TENNANT, W. J. (Carborundum Co.). July 31, 1939, No. 22223. [Class 70] Abrasive articles are' made by bonding an abrasive material such as diamonds with tin containing a metallic alloying agent which hardens the tin, e.g. copper, antimony, zinc, or magnesium or a combination of any two or more of these metals. When low diamond concentrations are used, other abrasives such as silicon carbide, boron carbide, fused alumina, garnet or quartz may be added. Specification 295,879, [Class 70], is referred to.
Patent GB-1467216-A (GB)
Title: Thermal protection of coil windings
IPC: H02K11/00
Filed: 1975-05-22
Abstract: 1467216 Coil formers GOULD Inc 22 May 1975 [19 June 1974] 22278/75 Heading B8M [Also in Division H2] A bobbin 11 has a flange 15a with an integral formation 19 defining two chambers 22, 23 separated by a partition 21, and the chambers are adapted so that a supply lead 17, e.g. of an electric motor (10, Fig. 1, not shown) may be received in the chamber 22 whereby to allow a bare end 36 of the lead to be introduced into the chamber 23 and wedged tightly against the conductive casing 29 of a thermal sensing device 18 when the device 18 is subsequently forced into the chamber 23. A current can then flow between the lead 17 and a coil-terminal 30 by way of a fixed contact 34 and a contact 33 at the end of a bimetallic arm 32 in the device 18. The bobbin 11 may be of an insulating material such as nylon, and the device 18 ensures that a coil which is to be mounted on the bobbin does not become overheated. In an alternative arrangement (Figs. 8a-12, not shown), a thermal sensing device is in the form of a tubular metalwalled fuse (40).
Patent GB-696174-A (GB)
Title: Improvements in or relating to mechanical linkwork devices
IPC: G05G13/00
Filed: 1951-09-27
Abstract: 696,174. Linkwork. MILLS, G. D. Sept. 27, 1951 [Nov. 3, .1950], No. 22546/51. Class 80 (iii). [Also in Groups II and XXIX] A linkage comprises short and long links 10, 12, pivoted together at one end 15 and connected at the other end 11, 15A, to bodies 18, 18A movable on the same axis. As shown, the bodies 18, 18A are valves, the casing 16 having inlet and outlet ports 17, 22. The links 10, 12, are pivoted to a link 19 connected to an actuating rod 20. The latter may be connected to a fluid pressure actuated diaphragm. In a modification, the valves 18, 18A are carried by levers connected to the points 11, 15A of the links 10, 12. The linkage may also be applied to rock crushers and to apparatus for the pressure moulding of bricks, plastics and the like.
Patent GB-1002209-A (GB)
Title: A rod-shaped handle for domestic appliances
IPC: A47L9/32
Filed: 1963-06-06
Abstract: 1,002,209. Hand tool handles. LICENTIA PATENT-VERWALTUNGS G.m.b.H. June 6, 1963 [June 12, 1962], No. 22593/63. Heading B4K. A sectional handle 2 for a suction cleaner or floor polisher comprises hollow cylindrical components 3, 4 of thermoplastic synthetic material, a metal tube with sleeves at its ends being inserted in the cylinder so that the sleeves rest against the inside of the handle. The handle parts 3, 4, Fig. 1, are connected by a screwed or plug-and-socket joint 5 and a metal tube 6 having piston-like sleeves 7, 8 at its ends is inserted in the cylinder. In a modification, the metal tube carries an additional central sleeve which forms a connecting joint for the parts of the handle. In another modification ribs are provided on the hollow cylinder to serve as stops for the metal tube 6 and against which the sleeve 7 bears. In another modification, Fig. 5, the metal tube 6 carries the cylinder 11 and sleeve 7. The tube 6 and cylinder 11 are fitted into each other and have longitudinal slots arranged at an angle of 180 degrees to each other.
Patent GB-736743-A (GB)
Title: Improvements in spinning mules and like machines
Inventor: BUCKLEY JOHN THOMAS
IPC: D01H3/04
Filed: 1953-08-17
Abstract: 736,743. Spinning mules &c. T.M.M. (RESEARCH), Ltd. Aug. 16, 1954 [Aug. 17, 1953], No. 22600/53. Class 120(2). The carriage of a mule, twiner or the like is reciprocated by an endless chain which has unidirectional movement. In one construction, a driving shaft driven through an electro-magnetic slip coupling, as described in Specification 732,665, drives through two parallel chains a pair of short countershafts driving two other parallel chains 27 between which a pin 31 carrying a slide block 32 extends. The slide block 32 engages in a vertical slot 33 in a bracket 34 fixed to the carriage. Similar mechanism is preferably provided at each end of the carriage, thus providing a squaring motion. Instead of the slide block 32 and bracket 34, a drag link may be pivoted on the pin 31 and also to a pin fixed to the carriage. In embodiments employing a single driving chain, either a single slide block may be used or two slide blocks attached to opposite sides of a pin 31 to engage in two brackets 34, one of them suitably modified to pass over the shafts carrying the reversing sprockets.