baber/WOPTO huggingface dataset:
Patent GB-584197-A (GB)
Title: Decorative articles and materials
IPC: B44C3/02
Filed: 1944-12-04
Abstract: Decorative materials and articles having a striated structure are made by superposing a number of sheets, each consisting of a mixture of comminuted methyl methacrylate polymer and monomeric methyl methacrylate and being coated on one or both sides with a solid layer of a material of different colour, shade or opacity, and solidifying the striated mass by polymerizing the monomeric methyl methacrylate. The methyl methacrylate polymer may be made by polymerizing methyl methacrylate by itself or with minor proportions of other polymerizable monomers such as styrene or butyl methacrylate.  Dyes, pigments, fillers or plasticisers may be added to the polymer or to the mixture thereof with methyl methacrylate.  The solid layer may consist of a film, fibres, or a powder.  The polymerization is effected in a mould with provision for following up the shrinkage which occurs on polymerizing methyl methacrylate, e.g. as described in Specifications 450,305 and 576,034, [Group V], and may be effected by heat, under pressure, in the presence of a catalyst such as benzoyl peroxide.  A mixture of comminuted polymethyl methacrylate and titanium dioxide pigment is made into a dough with monomeric methyl methacrylate which is rolled into a thin sheet and coloured on one side by rubbing with a cloth previously dipped in red pigment. Squares cut from the sheet are superposed in a mould, and the assembly is subjected to heat and pressure to polymerize the monomeric methyl methacrylate and cooled under pressure.  The material is suitable for knife handles and imitation ivory.
Patent GB-967792-A (GB)
Title: Mobile apparatus for producing foam
IPC: A62C5/00
Filed: 1959-07-14
Abstract: 967,792. Making foam. P. NASH, and R. J. FRENCH. Sept 23, 1960 [July 14, 1959], No. 24175/59. Heading B1C. [Also in Division A5] Fire extinguishing foam-generating apparatus which may be mounted on a crash tender or on a helicopter, comprises a gas-turbine compressed-air generator 14, a tank or, as shown, separate tanks 11, 13 for storing water and foam compound, a mixing chamber 19, an air line 15 from the generator having connections to the tanks and to the mixing chamber and a liquid line or lines 21, 22 for supplying water and foam compound to the mixer. The foam passes via an improver 23 to a monitor 24 and to hand lines 25 or alternatively the improver and monitor can be omitted and the foam fed directly to hand lines each equipped with a foam-making branch pipe at the output end. When mounted on a helicopter with reaction powered blades, on landing at the scene of a crash, the output from the turbo-compressor would be switched to the foam generator by a valve arrangement.
Patent GB-780265-A (GB)
Title: Fibrous filter medium
Inventor: WYLLIE DEREK MCLEAN
IPC: B01D39/08
Filed: 1954-08-19
Abstract: 780,265. Resin-treated fibrous filter mats. FORD, Ltd., T. B. Aug. 9, 1955 [Aug. 19, 1954], No. 24185/54. Class 96. Mats, e.g. formed of cellulosic and asbestos fibres, e.g. for use in filter presses for beer, have directly deposited on one or both surfaces a water-insoluble resin, e.g. unmodified or pentaerythritol - modified urea - formaldehyde, applied as droplets, which, after evaporation form particles to provide a permeable film on such mat surfaces. Deposition may be by spraying the resin which, in an aromatic solvent, has been brought into the presence of water, or an emulsion may be used.
Patent GB-423294-A (GB)
Title: Improvement in tobacco pipes
IPC: A24F1/08
Filed: 1934-08-22
Abstract: 423,294. Tobacco pipes. LAVIETES, D. P., 198, Terrace Place, Brooklyn, New York, U.S.A. Aug. 22, 1934, No. 24196. [Class 130] In a tobacco pipe the bowl stem 11 and bit 12 are connected by a tubular union 17 which engages frictionally the wells 15, 16 of the stem and bit and is provided with a collar 18 constituting a distance piece between the latter. A tubular metal plug 19 is removably disposed within the bowl end of the union 17 and is provided with tubular extensions 20, 21, the extension 20 projecting into the passage of that part of the union located in the well 16 and the extension 21 being formed with a thickened end 21<a> and projecting into the well 15. An air inlet 22 is provided in the bowl stem adjacent the relatively thin part of the extension 21. In a modification the bowl stem and union are in screw-threaded engagement.
Patent GB-1377102-A (GB)
Title: Erythrocyte separation
IPC: C07K16/06
Filed: 1972-07-11
Abstract: 1377102 Erythrocyte separation UPJOHN CO 11 July 1972 [23 July 1971] 24295/74 Divided out of 1377101 Heading A5B Erythrocyte stromata are separated from their menstruum by contacting a suspension of erythrocytes with acrinol. Preferably the erythrocyte stromata are lysed prior to contacting them with acrinol. The amount of acrinol may be' from 3 to 5 g/l of original packed erythrocytes.
Patent GB-361401-A (GB)
Title: Device for measuring liquids
IPC: G01F11/02
Filed: 1930-08-14
Abstract: 361,401. Delivering measured quantities of liquids. FABRIK EXPLOSIONSSICHERER GEF€SSE SALZKOTTEN GES., Salzkotten, Germany. Aug. 14, 1930, No. 24348. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 3, 1930.] Addition to 361,427. [Class 106 (v).] The spaces above and below a piston 2 working in a vertical transparent cylinder 1 are alternately charged and discharged in response to the movements of a valve 16 having connections 17, 18 to supply and delivery respectively. The accumulation of air or gas beneath the piston is prevented by a duct 7 secured in the piston and having an opening 8 close to the highest point. This duct depends into the lower part of the channel 4 which is constricted where it emerges into the cylinder 1. According to the Specification as open to inspection under Sect. 91 (3) (a) the duct 7 may project lower still into a cavity formed by a removable cap. On first using the apparatus a cotter pin prevents the piston from rising until the air has been driven from beneath the piston. The cotter is then withdrawn, the cap screwed on, and normal working ensues. The tube 7 may be omitted, and the bottom of the piston made to be flush on the cylinder end. The passage to the valve 16 is conical, and may be entirely filled by a projection from the bolt which holds together the piston and its washers. This subject-matter does not appear in the Specification as accepted.
Patent GB-1143984-A (GB)
Title: Improvements in or relating to a portable case, especially a stacking container
IPC: B65D21/02
Filed: 1967-05-28
Abstract: 1,143,984. Collapsible boxes. MATASCHAPPIJ TOT EXPLOITEREN VNA OCTROOIEN EN LICENTIES " MATEPA "  N.V. 25 May, 1967 [26 May, 1966], No. 24353/67. Heading B8P. A collapsible box for vegetables &c. has side walls hinged to the base and held erect by a removable frame member 3. Members 4 may be attached for stacking. In a modification, Fig. 3 (not shown), the frame and corner stacking members are of wire.
Patent GB-739908-A (GB)
Title: Improvements relating to welded joints in pipes or the like
Inventor: BAILEY RICHARD WILLIAM
IPC: F16L13/06
Filed: 1952-09-29
Abstract: 739,908. Pipe joints. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Sept. 29, 1953 [Sept. 29, 1952; Jan. 30, 1953; March 3, 1953], Nos. 24362/52, 2765/53 and 5910/53. Class 99 (1). [Also in Group XXII] In joining pipes &c. by a substantially full depth butt weld using weld metal having a creep strength less than that of the pipes, axial reinforcement of the weld in the form of an annular series of parallel bolts to draw together flanges or collars, one on each pipe, is provided to transmit more than half of the axial load. In one embodiment collars 8, 9, Fig. 2, are screwed and welded to the respective pipes 10, 11 which are welded with a ductile metal, e.g. mild steel, using a mild steel backing ring 15a, and flange rings 6, 7 are clamped against the collars by annularly arranged bolts 12. The flange rings, collars and bolts may be of high creep strength material, e.g. ferritic low alloy steel, similar to that of the pipes. The bolts are initially tightened to induce a tensile stress therein and a corresponding compressive stress in the weld. At working temperature the plastic strain and creep effect in the bolts cause the initial stress to fall so that the weld carries part of the load. In modifications the collars are formed integral with the pipes or the collars and flange rings may be integral. To provide a butt weld of uniform thickness axially of the pipes, the pipe end walls may be machined square and weld metal 17, Fig. 3, e.g. mild steel, is deposited thereon. This is machined to provide a U- groove 18 which is filled with mild steel weld metal 19. The thickness of each deposit 17 is at the bore of the pipes about half the axial length of the complete weld. Alternatively the square ends may have metal 20, Fig. 4, deposited thereon and machined so that with a backing ring 21 a channel of trapezoidal section is formed to be filled with weld metal. The invention is applicable to joints in steam piping where temperatures of 1050‹ F. and pressures of 1000-1500 lb./in.<SP>2</SP> are encountered; the piping, collars, rings, bolts, &c., being of ferritic steel containing molybdenum and vanadium and the weld metal being of mild steel. According to the Provisional Specification a ferritic steel sleeve may be welded to each pipe as an alternative reinforcement. Specification 402,415 is referred to.
Patent GB-916173-A (GB)
Title: Improvements in forced flow once-through vapour generating and vapour heating units
IPC: F22B35/14
Filed: 1959-07-15
Abstract: 916,173. Forced-flow steam boilers. BABCOCK & WILCOX CO. July 15, 1959 [July 17, 1958], No. 24370/59. Class 123 (2). In a forced flow, once-through boiler operating at high, perhaps supercritical, pressure, provision is made in the event of feed pump stoppage for cooling the heating tubes which would be endangered by overheating due to the residual heat in the setting by producing a thermal circulation of steam and water through those tubes. The supercritical pressure boiler shown is of the kind described in Specification 899,359. It has a tube-lined, upright furnace chamber A fired by pulverized fuel burners 18 and surmounted by a convection gas cooling chamber B which is divided into three passes 22, 23, 24 by tubulous partitions 20, 21. The gas flow through the passes is proportioned by outlet dampers 33, 34, 35. The upper and lower portions of all the passes contain respectively an economizer 32 and a secondary superheater 29 whilst the central portions of the passes respectively contain a final primary superheater 28, a first stage reheater 30 and an initial primary superheater 27 and a second stage reheater 31. A feed pump 46 supplies water through a conduit 42 to the economizers 32 whence it flows through a downcomer 44 and then upwardly in steam generating tubes lining the walls of the chambers A and B to a header 47. From this header steam-water mixture descends in downcomers 48 to enter tubes forming slag screens 25, 26 and the partitions 20, 21 through which it rises to a header 49. From this header steam passes into the initial primary superheater 27, leaving through a conduit 50 for passage through the superheaters 28, 29. A conduit 51 containing a check valve 52 connects the outlet of the pump 46 with the outlet conduit 50 from the superheater 27. The check valve 52 comprises a piston 52A moving in a cylinder 53. In its uppermost position the piston contacts a seating 56 and closes the conduit 51, the piston occupying this position when the generator is working normally since the pump pressure holds it on to the seating. If the feed water supply to the unit fails, the fuel firing equipment is automatically shut off and the piston 52A, no longer supported by the pump pressure, falls to open the conduit 51, whereupon a thermo-syphon circulation is established in a flow path including the economizers 32, the downcomer 44, the wall lining, screen and partition tubes, the superheater 27 and the conduits 51, 42. The generating tubes and superheater 27 which, unlike the secondary superheater and reheater, are not made of high quality steel are thus protected from being overheated by the residual heat of the setting by the natural circulation of working fluid, the heat being transferred thereby to the economizer. Since no heat is lost from the unit it can be restarted without delay when the feed supply is available, the valve 52A being closed manually by a rod 52B.
Patent GB-372654-A (GB)
Title: Improvements in or relating to electrical control systems, employing thermionic valves and other electron discharge devices
IPC: H01J17/04
Filed: 1931-09-01
Abstract: 372,654. Thermostats. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Finch, J. L. ; Rocky Point, Long Island, New York, U.S.A.) Sept. 1, 1931, No. 24576. Convention date, Sept. 8, 1930. [Class 64 (ii).] An electron discharge device, particularly one of the type known under the registered Trade Name " Thyratron," is arranged to control temperature, or the flow of liquids. As shown in the Figure, so long as the contact 20 is open, the voltages from the A.C. source 4 are applied in phase to the anode 26 and through a resistance 22 to the grid 30, and rectified current flows through a heating element 24. As the surrounding temperature increases the contact 20 closes by thermostatic action, the applied grid voltage is reversed so that it is out of phase with the anode voltage, and the anode current is cut off. Several Thyratrons may be used in parallel to increase the output ; or two may be connected in series across the input transformer.
Patent GB-1328006-A (GB)
Title: Carbo-functional derivatives of silatranes and a process for  producing same
IPC: C07F7/18
Filed: 1971-04-19
Abstract: 1328006 Carbo-functional silatranes VYZKUMNY USTAV ORGANICKYCH SYNTEZ 19 April 1971 [18 March 1970] 24615/71 Heading C3S [Also in Division C5] Novel carbofunctionel silatranes of the formula wherein R<SP>11</SP> denotes hydrogen or alkyl and X denotes a functional group, are prepared by reacting a trialkanolamine N(CH 2 CHR<SP>11</SP>OH) 3  with an organosilicon compound in which at least one silicon atom has one valency taken up by an XCH 2  group and the remaining three valencies are taken up by groups containing an oxygen atom bonded to said at least one silicon atom. X may be halogen, -OH, -OR, -SO 3 H, -NRR<SP>1</SP>, NC-, HS-, RCOO-, F 3 C-, NCS-, HORO-, RNHCOO-, -OP(OR) 2  or RSO 2 NH-, wherein R and R<SP>1</SP> denote alkyl, aryl or alkenyl. Organosilicon reactants include alkoxy silanes, polysiloxanes, polysiloxanols, silanols, polysilanols and alkoxysiloxanes. Examples describe the preparation of phenylaminomethylsilatrane, chloromethylsilatrane, methacryloxymethylsilatrane, orthotoluenesulphoaminomethylsilatrane and acryloxymethylsilatrane. Uses.-Lubricant additives, antistatic and finishing agents for glass fibres and cloth, emulsion stabilizers and separating agents.
Patent GB-953035-A (GB)
Title: Improvements in or relating to time-base circuits employing transistors
Inventor: ATTWOOD BRIAN ERNEST
IPC: H03K3/35
Filed: 1962-06-27
Abstract: 953,035. Transistor sawtooth circuits. MULLARD Ltd. June 27, 1962, No. 24704/62. Heading H3T. A field time-base circuit for television apparatus comprises a sawtooth oscillator using a semi-conductor device, periodically discharging a capacitor, the residual voltage across the capacitor during each flyback period being cancelled by a backing-off voltage induced into a winding in series with the discharge circuit. The oscillator is D.C. coupled to an output transistor hence the backing-off voltage clamps the base potential of the output transistor. Fig. 2 shows two capacitors C12, C13, charged via resistor R13 and periodically discharged via a blocking oscillator comprising transistor T1 and feed-back transformer Lb1, Lb2. The sawtooth voltage across the capacitors is passed via an optional emitter follower T2 to an amplifier T3 coupled to field deflection coils Ly via capacitor Cy. A flyback pulse induced into winding Lb3 cancels the residual voltage across the blocking oscillator T1 and clamps the base voltage of T3. Lb3 could alternatively be connected in the emitter circuit of T1. The frequency of the blocking oscillator T1 is stabilized by a negative-temperature coefficient resistor R2 as described in Specification 896,024. The output is linearized by feed-back via R16. Further feed-back may be provided via a capacitor and resistor (not shown) in series, connected between the emitter of T2 and the junction of C1, R1. Transistor T1 may be replaced by a controlled PNPN device fed from a stabilized voltage derived from T3 as described in Specification 924,260. Specification 935,722 also is referred to.
Patent GB-754296-A (GB)
Title: Face screen
IPC: A61F9/06
Filed: 1954-08-25
Abstract: 754,296. Goggles. FOCUS VEILIG N.V. Aug. 25, 1954 [Aug. 28, 1953], No. 24729/54. Class 97 (1). A face screen, particularly for welders, has a sight glass fixed to an aperture thereon by means of a frame having an edge extending through the aperture and engaged by a fastening plate contacting one side of the screen, a flange on the frame. contacting the other side of the screen. As shown, one edge 3 of a rectangular frame 2 projects through an aperture in the screen 1 and has a peripheral groove 3 engaged by a pair of fastening plates 6 shaped as shown in Fig. 4. Each plate carries a projection 7 engaging a central hole in the groove which may extend along the base of the frame for engagement by a wire clip 10 which holds the glass 9 in position in the frame. The screen 1 is thus clamped between the plates 6 and a flange 4 on the frame 2.
Patent GB-734942-A (GB)
Title: Improvements relating to collars and shirts
IPC: A41B3/04
Filed: 1952-10-02
Abstract: 734,942. Shirt collars. HOLT, T. W., and SEYMOUR, S. Oct. 1, 1953 [Oct. 2, 1952], No. 24732/52. Class 141. Means for attaching collars to a shirt neckband comprises a strip of pliable plastic material secured to each collar and the neckband, the adjacent faces of the two strips interengaging and interlocking in wear. As shown, the collar a is provided with a plastic strip g having projections h with upwardly turned ends engaged by projections i which are turned downwardly on a similar strip j attached to the shirt neckband. According to the Provisional Specification the plastic strip attached to the neckband has a spherical projection adopted to engage a partcircular projection on the collar strip.
Patent GB-1021597-A (GB)
Title: Phototropic glass article and method of making it
IPC: C03C4/06
Filed: 1964-06-15
Abstract: A phototropic article comprises a body of a silicate glass at least a portion thereof containing crystals of at least one cadmium-doped silver halide selected from AgCl, AgBr and Ag 1, and containing 0.04-0.3% by weight of CdO. The preferred base glass compositions comprise, in per cent by weight, SiO2, 40-76; Al2O3, 4-26; B2O3, 4-26; and at least one alkali metal oxide selected from Li2O, 2-8; Na2O, 4-15; K2O, 6-20; Rb2O, 8-25; Cs2O, 10-30; to this composition is added at least one of Cl, 0.2; Br, 0.1; I, 0.08; and the following minimum percentages of silver when the effective halogen is indicated; for Cl, 0.2; for Br with less than 0.08% I, 0.05; for at least 0.08% I, 0.03; the same of the above ingredients being at least 85% of the total composition. Also present may be very small amounts (less than 1%) of SnO, FeO, Cu2O, As2O3 and Sb2O3; minor amounts of F and P2O5; and not more than 15% of the following divalent metal oxides whose maximum percentages are indicated: MgO, 4;CaO,6;SrO, 7; BaO, 8; and ZnO ,8; Pb should be absent.  The above batch ingredients and the CdO are compounded, melted, shaped, and quenched; the radiation-sensitive crystallization of silver halide is performed during the above process or by a subsequent heat-treatment e.g. by heating to 450-1000 DEG  C.  The CdO has a synergistic effect on the fading rate of the darkened glass.
Patent GB-962598-A (GB)
Title: Change speed gearing
IPC: F16H3/097
Filed: 1962-06-27
Abstract: 962,598. Change speed gearing. EATON MANUFACTURING CO. June 27, 1962 [Aug. 3, 1961], No. 24736/62. Heading F2D. A change speed gear has means for alternately driving first and second countershafts from the input shaft, the countershafts being connected for continuous rotation in the same direction and having means for driving the output shaft. An input shaft 31 has gears 32, 33 rigid therewith meshing respectively with gears 62, 76 and 63, 88 clutchable to the countershafts 61, 74 by dog clutch members 69, 91, respectively. The two countershafts are continuously geared together by an idler gear 104 (not shown) between gears 72 and 99 integral with the respective shafts 61, 74; the gear 72 further meshing with a gear 42 freely rotatable on the output shaft 34. A dog clutch sleeve 52 may connect either gear 42 or gear 47, driven from a gear 73 integral with shaft 61, to the output shaft through synchronizing clutches 46, 51 to provide a speed-range shift. Direct drive is obtained by engagement of a dog clutch sleeve 37, splined to the output shaft, with teeth within the gear 33 of the input shaft, and reverse is obtained by engagement of a sliding gear 93 with dogs 98 on shaft 74 and with gear 63 on shaft 61. The gearing provides four ratios by selective engagement of the two double dog clutches 69, 91 combined with the two ratios obtained by selective engagement of the dog clutch sleeve 52 to provide eight ratios, direct drive and two reverse ratios. The range change clutch 52 (Fig. 4) selected by presetting control 113 can only be shifted by shift cylinder 114 when an interlock mechanism 110 dependent on the neutral position of both clutches 69, 91 opens a valve 111 in the supply. Specification 681,759 is referred to.
Patent GB-277810-A (GB)
Title: Improved construction of tea infuser
IPC: A47G19/16
Filed: 1926-10-06
Abstract: 277,810. Brook, E. J. L. Oct. 6, 1926. Infusers.-A perforated spoon-like tea &c. infuser a with a rigid handle d has a perforated spoon-like cover a<2> held in pivotal engagement therewith by a bowed spring c without a hinged connection. The cover a<2> pivots on a bearing member which may be obtained by forming the attachment end of the handle d bifurcated with a transverse bar e, the spring c being passed through the slot f so formed. A small tongue a<4> may be formed on the handle, giving an additional bearing surface. In a modification, the bearing surface may be formed by a rearward extension of the infuser a. The cover can be swung to two positions, open and closed.