baber/WOPTO huggingface dataset:
Patent GB-672399-A (GB)
Title: Improved means for the introduction of air in boiler furnaces
IPC: F23L9/00
Filed: 1950-03-24
Abstract: 672,399. Steam-generator furnaces. VORKAUF, H. March 24, 1950, No. 7469/50. Class 51 (i). Means for the introduction of additional air for steam boiler firing are characterized by the provision of one or more air ducts having their discharge openings arranged in the central part of the combustion chamber and surrounded by tubes disposed closely together and traversed by a cooling medium. As shown in Fig. 3, a steam generator is fired tangentially by pulverized fuel through burners 1, thus producing a turbulent flame, and secondary air is introduced through one or more pipes 3 surrounded by cooling tubes 6, the air emerging through openings 4 in each pipe 3. In a modification the cooling tubes are parallel with the axis of the pipe 3.
Patent GB-661773-A (GB)
Title: Improvements in or relating to electrical filter circuits
IPC: H03H7/06
Filed: 1949-03-18
Abstract: 661,773. Electric filters. GENERAL ELECTRIC CO., Ltd., and IMM, R. C. March 17, 1950 [March 18, 1949]; No. 7479/49. Class 40 (viii). An electrical filter circuit comprises a pair of series arms, the first of which includes a parallel circuit 3 resonant at a first frequency and a condenser 2, and the other series arm includes a parallel circuit 8 resonant at a second frequency, and an inductance 9, the complete arms being each series resonant at a third intermediate frequency and the shunt arm containing a parallel circuit 11 resonant at this frequency. The T-section shown can be changed to an H-section by adding two similar series arms. A # or O section filter on the same principle can be formed by including the two parallel resonant circuits in one series arm and arranging for them to be series resonant at the third frequency. Both shunt arms will contain a parallel circuit 11. The circuit is intended for use with a harmonic oscillation generator. The third frequency above corresponds to the harmonic it is desired to employ and the other two frequencies correspond with the neighbouring harmonics which must be eliminated.
Patent GB-568071-A (GB)
Title: Improvements in or relating to insulating material
IPC: H01B3/04
Filed: 1943-05-11
Abstract: Mica flakes are bonded together with a solution of polyisobutylene in toluene or similar solvents.  In an example, a base material such as woven fibre glass or cambric is bonded by the polyisobutylene solution layer to a super-imposed layer of mica flakes.  Additional layers of mica flakes may be applied with more of the resin solution. A final layer of uncoated mica flakes may be given and the whole heated under pressure to remove the solvent.  The fabric may be treated with an impregnating composition such as a polyvinyl composition, e.g. polyvinyl alcohol or polyvinyl acetate, and/or it may be varnished with tung oil type insulating varnishes; an upper fabric layer may also be p  incorporated.  Instead of polyisobutylene alone, related mono-olefines and diolefins such as isoprene may be added to the polyisobutylene after polymerization.  The treated fabrics have good electrical insulating properties.
Patent GB-458256-A (GB)
Title: An improved method of producing single-colour or multi-colour photographs and kinematograph films
IPC: G03C8/04
Filed: 1935-03-11
Abstract: 458,256. Photographic sensitive materials; colour photography. GASPAR, B., 57, Rue de Tenbosch, Brussels. March 11, 1935, No. 7509. Convention date, March 29, 1934. [Class 98 (ii)] Colour photographs and kinematograph films are produced by exposing a light-sensitive layer having incorporated therein a coarselydispersed dyestuff and subsequently converting this dyestuff into a finely dispersed form in which it colours the layer, by means of a chemical. or physical agent such as a solvent, and producing therefrom a dye image corresponding to the image formed by exposure, in any known manner. Multilayer material having several layers as above or one or more layers as above united with one or more colourless layers or layers incorporating dyestuff components may be used. The dyestuffs may be added to the emulsion or binding agent in powder form. Alternatively, a water-insoluble dyestuff e.g. Chinoline Yellow or the tannates or abietinates of basic dyes e.g. methylene blue, Janus Blue, Red, or Yellow, may be added to the emulsion or to a water soluble binding agent e.g. gelatin, in alcoholic solution, and the solution in alcohol poured into water and the resulting dispersion mixed with gelatin. Precipitates of the dyestuffs, for example, salts of acid or substantive dyestuffs such as Anthosine, Metanil Yellow, Naphthylamine Black, or Diamine Pure Blue with alkaline earths, magnesium, or the heavy metals such as zinc or silver, or with organic bases such as aniline or naphthylamine may be used. These may be formed in water or in situ in the binding agent. Dyestuffs which are soluble in hot water and are precipitated on cooling may be employed without precipitants. The dyestuffs may also be formed in situ in the layer from the preliminary stages or components in any suitable manner. The conversion into the finely dispersed form may be effected by the use of solvents or by treatment with dilute acids or alkalies. In the case of vat dyes the convention may be performed with alkaline hydrosulphite followed by oxidation. Stop baths may be used to control the intensity of colour. The conversion may also take place in the developing or fixing bath in the case of silver halide layers. In examples : (1) Spirit Fast Red B is mixed in powder form with gelatin, the conversion being performed with an alcoholic solution, and (2) Chrysophenine or Anthosine is precipitated as a barium salt and mixed with a silver halide emulsion, the conversion being carried out with dilute sulphuric acid. The layers may be colour sensitized and may contain filter dyestuffs. Bichromated colloid layers may also be used. Dark coloured dyestuffs may be used for document copying papers or for sound films. Specification 458,304 is referred to.
Patent GB-1491057-A (GB)
Title: Device for automatically feeding flowable material to a production machine
IPC: B29B9/00
Filed: 1975-02-21
Abstract: 1491057 Pneumatic conveyers K HEHL 21 Feb 1975 [26 Feb 1974] 7509/75 Heading B8A A pneumatic conveyer comprises a supply receptacle 29, a conveying line communicating with the receptacle and with means 10 for supplying air, a receiving barrel (not shown) including a sieve portion, and a by-pass flow channel connected to the conveying line upstream of the barrel and incorporating flow resistance means which allow flow only when the barrel is substantially full of material. As shown the conveying line includes an upright pipe 18 telescoping with an elbow section 19 connected to a transparent hose 22 leading to the barrel and incorporating a wire spiral 23 for reinforcement and removing electrostatic charges. An air supply line 30 includes a heater 12 and communicates with a chamber 21 in communication with the pipe 18 and the interior of the receptacle 29, via a perforated wall 35. The top of the receptacle includes a biased poppet valve 14 leading back to the air supply means 10. Thus when the barrel is full, air flows through the receptacle back to the supply means 10.
Patent GB-650588-A (GB)
Title: Improvements in gauges for checking the external diameter of tubes
IPC: G01B3/34
Filed: 1948-03-12
Abstract: 650,588. Linear-dimension gauges. CONEX. TERNA, Ltd., and WHITWORTH, F. March 12, 1948, No. 7547. [Class 106 (ii)] A gauge for measuring the external diameter of tubes comprises a plate 1 having a tapered slot 2 stepped to accommodate various diameters, and a sliding member 4 adapted to engage the external surface of the tube nearest the bottom of the slot. Graduation marks c, b, d are provided whereby the slider 4 will indicate the external diameter and the probable gauge of metal and internal diameter to be expected from a standard tube of the external diameter so measured. The angle of taper may be 12 degrees and in the example given the gauge is designed for dealing with tubes from ¢ inch external diameter to 1¢ inches external diameter in “ inch grades.
Patent GB-435261-A (GB)
Title: Improvements in and relating to yarn clearers
IPC: B65H63/06
Filed: 1934-03-10
Abstract: 435,261. Yarn clearers. COOK & CO., MANCHESTER, Ltd., and CHARNOCK, C. J., 18, Exchange Street, Manchester. March 10, 1934, No. 7623. [Class 120 (ii)] In a yarn clearer comprising a pair of movable jaws between which the yarn is passed, one jaw being movable to and from the other and caused to close thereon to break the yarn by the passage of a knot or the like therein, the movable jaw is pivoted and adjustable to and from the other and is held in its adjusted position by adjustable resilient means until moved by a knot or the like in the yarn and is returned to its normal position when released from the pull of the yarn by the resilient means. As shown the movable jaw or blade 11 is adjustably mounted on a plate 10 pivoted by ears 19 on a pin 20 in the support 5 and is adjusted in relation to the fixed jaw 8 by a screw 14 passing through the plate 10 and bearing against the support 5 while a weight 13 adjustable along a rod 12 projecting from the plate 10 resiliently holds the screw 14 against the support. In a modification the adjusting screw bears against a spring-pressed plunger disposed in the support. The side of the plate 10 is curved and, in conjunction with guides 15, 16 guides the yarn, as it is pulled down, to the jaw 8 and beneath the blade 11. According to the Provisional Specification the jaws may be V-slotted and both may be pivoted. Reference has been directed by the Comptroller to Specification 26230 /11, [Class 120 (ii)]
Patent GB-1168069-A (GB)
Title: Electric Warning Device
Inventor: KLEIN H C
IPC: B60T17/22
Filed: 1967-07-18
Abstract: 1,168,069. Brake indicators. ALFRED TEVES G.m.b.H. 18 July, 1967 [1 Sept., 1966], No. 7660/69. Divided out of 1,155,990. Heading F2E. A failure indicator for a dual braking system comprises a switch 18 actuated by the excessive travel of the brake pedal when failure of one, or both, of the systems occurs. Actuation of switch 18 locks in relay 8 and the indicator lamp 9 can then only be cancelled by actuation of reset switch 19. Liquid level warning and checking switches 6, 7 are also provided.
Patent GB-923949-A (GB)
Title: Improvements in methods of producing dispersion-strengthened metal products
IPC: C22C32/00
Filed: 1961-03-02
Abstract: A dispersion strengthened metal or alloy containing a dispensed refractory oxide phase in a metal which has an elevated temperature phase transformation is produced by compacting and sintering a mixture of the powdered constituents followed by mechanically working the sintered compact at a temperature not exceeding the phase transformation temperature of the metal.  The metal constituent may be Fe or Fe base alloys containing solid solutions of at least 50% Fe such as steels; Fe-up to 20% Cr; Fe-up to 4% W; Fe-up to 4% Mo; Fe-up to 10% Ni; Fe-up to 15% Si.  In addition the following may form the metal constituent: Co; Co-Mo; Co-Ni-W; Co-Cr-W; Co-Cr-Mo; Ti; Zr; U. The refractory oxides are MgO; SiO2; Al2O3; CaO; BaO; ZrO; BeO; ZrO2; TiO2; ThO2; rare earth oxides, the oxides forming 1-15% by volume of the composition.  The grain size of the metal powder ranges up to 20 micron and the oxide grain size from 0.01-0.1 micron.  After mixing, the powders may be heated in hydrogen at 700-900 DEG  F. and then packed in a rubber tube supported in a perforated steel container. After evacuating the air from the powder hydrostatic compaction is effected at 30,000 p.s.i.  Sintering is effected in hydrogen, preferably below the phase transformation temperature of the metal, e.g. for Fe/Al2O3 compositions sintering is at 1525 DEG  F. for ten hours.  The sintered compacts are packed in a mild steel can and then extruded at a temperature below the metal phase change, e.g. at 1550 DEG  F. for Fe/Al2O3.  If g  Al2O3 is used the working temperature should also preferably be below g -a  Al2O3 change point.
Patent GB-276260-A (GB)
Title: An improved transport stretcher
IPC: A61G1/04
Filed: 1927-03-21
Abstract: 276,260. Kenny, E. March 21, 1927. Litters.-A stretcher comprises an upper frame having a rigid bed I supported by means of spiral springs D on an underframe A preferably having wheels B. Handles R are provided. A hinged footboard K and hinged curtain frames E are provided while a frame G for a head cover is hinged as shown. Curtains M and a cover N are adapted to be rolled up as shown in Fig. 1 when not required.
Patent GB-589432-A (GB)
Title: Improvements in or relating to connectors for the joining of braided electric cables
IPC: H02G3/06
Filed: 1945-03-28
Abstract: 589,432. Cable joints. HOLMAN, H. E. March 28,1945, No. 7893. [Class 38 (i)] [Also in Group XXII] A connector for joining braided cables comprises a thin conducting sleeve 5, which is secured by grooves 7 to the cable-sheath 4 and has a flange 6 on the surface of which the braiding 3, after removal of the sheath 4, is spread out, and which is engaged by a coupling sleeve 12. A cup 8 having serrations 9 which are bent over the flange may be provided to hold the braiding in position against the flange. The join in the cable conductor 1 is insulated by a split sleeve 16 from a split tubular metal casing 14 to the ends of which are screwed the coupling sleeves 12, thereby maintaining the continuity of the braiding. A sealing-washer 13 may be provided between the flange and the sleeve 12. The invention is applicable to a plug-and-socket connector, and the sleeve 12 may be screwed direct to the threaded boss of a junction box, Fig. 4 (not shown).
Patent GB-914203-A (GB)
Title: Improvements in or relating to sliding-clasp fasteners
Inventor: HAWLEY EDWIN LAWRENCE
IPC: A44B19/16
Filed: 1959-03-06
Abstract: 914,203. Sliding-clasp fasteners. E.P.S. (RESEARCH & DEVELOPMENT) Ltd. Dec. 29, 1959 [March 6, 1959], No. 7906/59. Class 44. In a sliding-clasp fastener comprising polyvinyl chloride strips 1, 2, having interlocking groove and tongue longitudinal configurations 3 and 5 and 6 and 4, opening of the engaged strips is effected by a two-fingered projection 23 depending from a saddle-shaped piece 17 of the slider. The strips 1, 2 also comprise longitudinal grooves 10, 11 which are engaged by fingers 21, 22, 27, 28 projecting from the two-part bridgeshaped slider parts 16, 26. The slider is completed by a two-part saddle member 12 having serrated gripping surfaces 13, a number of shims 15 sufficient to ensure proper spacing of the slider over the strips 1, 2, and the appropriate number of assembly bolts 14, 18, 19 and 25. When opening the interlocked strips the fingers 21, 22 of the moving slider engages the strip grooves 10, 11 to thus press the strips together at the inner marginal portion of their junction so as partially to force the tongue 5 from the groove 3. The projection 23 then enters between the strips and prises them apart such that the tongue 4 is disengaged from the groove 6. The ends of the fastener are closed by hoods 29 heatsealed thereto, their internal configuration matching, respectively, the external shape of the interlocked and non-interlocked strips 1 and 2. The fastener is heat-sealed to the material 9 of the article to which it is applied, the strips having longitudinal grooves 8 for this purpose. The slider may have internal rollers engaging longitudinal grooves in the outer edges of the strips 1, 2. Such rollers may comprise the projections 21, 22 of plate 16 and/or the projections 27, 28 of plate 26. Specification 887,956 is referred to.
Patent GB-1406391-A (GB)
Title: Inverter circuit arrangements
IPC: H03K19/017
Filed: 1973-02-17
Abstract: 1406391 Integrated circuits FERRANTI Ltd 18 Feb 1974 [17 Feb 1973] 7910/73 Heading H1K [Also in Division H3] A logic inverter circuit (see Division H3) comprises a field effect transistor 11 and a bipolar transistor 10 formed on a single chip, with the gate electrode 57 and base electrode 45, 46 connected to an input terminal 65 and the source 56 and collector 52 connected to the output. As described the F.E.T. is a junction F.E.T., but an insulated gate type may be used. The input circuit may include one or more diodes and a number of stages may be combined to perform a logic function.
Patent GB-124105-A (GB)
Title: Improvements in or relating to Sectional Racks, Compartmental Structures and the like.
Inventor: REES MYER
IPC: A47B47/00
Filed: 1918-05-13
Abstract: 124,105. Rees, M. May 13, 1918. Sectionad furniture. - A sectional rack comprises a number of plates 1 with beaded edges 2 connected by locking or connecting bars with which they have sliding engagement. The connecting bars are formed of two pairs of channelsection strips 4 slotted as shown at 5 and interlocked to form a structure as shown in Fig. 5. The recesses in the exterior connecting bars of a unit may be closed by strips which may be integral with the channel-strips. The open ends of the connecting-bars may be closed by plugs 14 of the form shown in Fig. 7.
Patent GB-552524-A (GB)
Title: Improvement in coating compositions containing shellac
IPC: C09D161/32
Filed: 1941-06-27
Abstract: 552,524. Coating-compositions. AMERICAN CYANAMID CO. June 27, 1941, No. 8119. Convention date, Oct. 31, 1940. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 21, 1942.] [Class 2 (iii)] A coating composition contains shellac and a melamine-formaldehyde resin which has been alkylated with an alcohol containing at least 2 carbon atoms, wherein the molar ratio of formaldehyde to melamine is at least 2.5 : 1. Examples are given of the preparation of melamine-formaldehyde resins alkylated with n-butanol, ethanol, n-hexyl alcohol, amyl alcohols, and benzyl alcohol, and of the addition of these resins to shellac solutions to form coating compositions. Specified optional additions are methanol, ethanol, butyl alcohol, amyl alcohol, turpentine, benzene, chloroform, alkyl phthalates, tricresyl phosphate, lithopone, zinc oxide, titanium oxide, ferric oxide, Prussian blue, toluidine red, malachite green, mica, glass fibres, ground glass, silica, phosphoric acid, ammonium phosphates, urea-formaldehyde resins, phenol-formaldehyde resins, alkyd resins, ethyl cellulose, cellulose acetate and nitrocellulose. The products are useful in the preparation of lacquers, varnishes, paints, enamels and adhesives.
Patent GB-374932-A (GB)
Title: Means for automatically controlling the proportion of an additional fluid supply to a main fluid stream
IPC: A61L2/24
Filed: 1931-03-17
Abstract: 374,932. Valves. ANTHONY, T. E. and PALATINE ENGINEERING CO., Ltd., Hawthorne Road, Bootle, Lancashire. March 17, 1931, No. 8124. [Class 135.] To regulate the quantity of sterilizing fluid delivered to a water-supply main, a disc sliding in an open truncated cone sets up angular movements in a cam or pinion which through a lever operates a valve controlling the supply of sterilizing fluid. The disc 1, Fig. 1, which slides in the truncated cone 2a interposed in the main 2 is connected by a flexible cord 3 to a pulley 4 mounted on a spindle 5. The disc 1 is counterbalanced by a weight 6 hung from a pulley 7. A cam 8, Fig. 3, is secured to the spindle 5 eccentric to its axis. A roller 11 on the end of a lever 12 pivoted at 13 to a casing 14 engages a slot 9 in the cam 8 so that when the disc 1 falls due to a decrease in the flow in the main, the cam 8 moves in a clockwise direction and the lever 12 presses a plunger 19 inwards. The plunger actuates a needle valve 18 secured to a flexible diaphragm 17. The casing 14 is provided with an inlet 15 and an outlet 16 for the sterilizing- fluid. A spring 20 may be provided to urge the lever towards the plunger 19. In a modification, a snail cam is used and a double-arm lever has a roller at one end which engages a notch in the valve spindle. In a further modification, a pinion on the spindle 5 engages toothed gearing on the boss of a rocking lever, the ends of which are connected by cords to plungers operating in cylinders located in similar vessels, one containing sterilizing fluid and the other water. The vessels communicate by pipes containing check valves with a common pipe leading to the main fluid stream. An increase in flow in the latter causes a port in the cylinder of the vessel containing sterilizing-fluid to be uncovered and a corresponding port in the other cylinder to be covered a corresponding amount. Reference has been directed by the Comptroller to Specification 13130/09, [Class 8 (i), Air and gases, Compressing &c.].
Patent GB-777807-A (GB)
Title: Improvements in or relating to television receivers
Inventor: COPE JOHN EDWARD
IPC: H04N5/53
Filed: 1954-01-15
Abstract: 777,807. Automatic gain control. PYE, Ltd. Jan. 15, 1954, No. 8149/56. Divided. out of 777,801. Addition to 777,803. Drawings to Specification. Class 40(5) The subject-matter of this Specification is included in that described in Specification 777,801, but the claims differ. Specifications 777,804 and 777,805 also are referred to.
Patent GB-609564-A (GB)
Title: Improvements in electro-pneumatic operated machines used for operating tools
IPC: D04B17/04
Filed: 1946-07-25
Abstract: 609,564. Connecting-rods. FUERY, G. T. (Etablissements Vitoux). July 25, 1946, No. 8210. [Class 122 (i)] A connecting rod for electro-pneumatic machines used for operating tools includes a member 14 over which is placed the actuating diaphragm 13 and which is screwed into the threaded bore 12 in the rod 6. A washer 19 fits over the cylindrical portion 15 of the member 14 and is pressed into contact with the diaphragm 13 by a spring 22 which also abuts a collar 10 on the rod 6.
Patent GB-447941-A (GB)
Title: Improvements relating to by-pass valves for use with parallel slide valves
IPC: F16K1/48
Filed: 1935-03-18
Abstract: 447,941. Valves. HOPKINSONS, Ltd., and BIRKBECK, J. R., Britannia Works, Wheathouse Road, Huddersfield. March 18, 1935, No. 8325. [Class 135] A byepass valve for use with parallel slide valves has a rotary valve spindle whereby the valve may be actuated to open or close the byepass and a see-saw valve member on the end of the spindle whereby when the byepass is closed the space between the main valve members is automatically connected to the side of the main valve which for the moment in subject to the higher pressure. The valve members o, p carried by a see-saw lever n pivoted at n<1> to the lower end of the actuating spindle l co-operate with seats j, k on the ends of passages connected by pipes to the two sides of the main valve. The chamber above the valve is connected by a third pipe with the chamber between the two main valve members. To ensure that one or other of the valves o, p is always seated when the byepass is closed a snap action spring r and toggle link q is arranged to act on the see-saw lever.
Patent GB-289611-A (GB)
Title: Improvements in cake baskets, sweet trays or the like
IPC: A47J45/06
Filed: 1927-03-26
Abstract: 289,611. Dutton, R. March 26, 1927. Stands. - The ends of the handle 8 of a cake basket, sweet dish or the like are pivoted to the basket &c. by means of lugs or brackets 1, which have a flanged portion 2 adapted to rest against the underside of a portion of the basket &c. when the upstanding portion or portions 5 of the lug are passed through a slot or slots 3 in the basket. The portions 5 have holes 7 to take the pivot pin 9 of the handle. The lugs are soft soldered to the bracket &c.