baber/WOPTO huggingface dataset:
Patent GB-327356-A (GB)
Title: Improvements in and relating to electric inductances and transformers
IPC: H01F41/04
Filed: 1929-07-06
Abstract: 327,356. Littledale, H. A. P. July 6, 1929. Etching.-A frame aerial or other radio inductance or transformer is made, from sheet metal by coating the sheet with acid-proof material, marking out the configuration of the coil thereon, and completely etching out the metal of the sheet at the markings. A frame aerial of the " pancake " type is made from a sheet of copper foil, which is cleaned and the back coated with a thin covering of Brunswick black diluted with amyl acetate, which is, not readily soluble, in alcohol. When dry, a thick covering of an alcohol-soluble acidproof varnish is applied. When this is half dried, a backing sheet somewhat larger than the foil sheet, and made of paper, cheese muslin, thin canvas, &c., is pressed on so as to adhere, and the coating allowed to dry while, the backing is retained under pressure. Further coats of acid-proof varnish are then applied. The face of the foil is then cleaned and coated with a thin coat of Brunswick black in amyl acetate, and when dry a thin coat. of acid-proof varnish in mebhylated spirit is applied and allowed to dry. A spiral cut is then made in the face by means of a needle or cutter, so as to expose the copper. The sheet is then immersed in an acid bath, such as dilute nitric acid or a mixture of nitric and hydrochloric acids, and the copper at the exposed parts etched out. so as to leave the sheet in the form of a spiral coil adhering to the backing. The coil may then be mounted on a stretcher or cemented to a sheet of three-ply wood. The thin varnish coats on the face may be replaced by wax, and the amyl acetate by turpentine or another solvent, or the metal face may be protected by gold size, shellac, 'graphite, &c. The coil may be transferred to another backing, or may be wound upon a cylinder to reduce its overall dimensions.
Patent GB-992431-A (GB)
Title: Girder
IPC: E04C3/09
Filed: 1962-05-30
Abstract: 992,431. Lattice girders. ROHREN-UND ROHEISENGROSSHANDEL G.m.b.H. May 30, 1962 [May 30,1961], No. 20814/62. Heading E1K. The upper boom of a lattice girder comprises C-section members 1, 3 connected by cross ties 2 the corners 7 of the C-section members' being rounded and the webs 8, 9 inset between the corners. The cross ties 2 are inverted channels with outwardly turned flanges.
Patent GB-614364-A (GB)
Title: An improved appliance for stretching gloves
IPC: D06F59/04
Filed: 1946-07-12
Abstract: 614,364. Glove stretchers. GIVONI, G. July 12, 1946, No. 20847. [Class 141] An appliance for stretching glove fingers comprises a central fixed member and two outer movable members at each side, the members being shaped at their upper ends to form half-fingers which co-act to formfour fingers, means being provided for opening the half-fingers. As shown, the fixed member 1, slotted at its upper end to form halffingers 6, is supported by a base 4 and has a plate 12 secured by screws 13 to each side. The two pairs of movable members 2, 3 are pivotally mounted, by screws 10, 11 respectively, on the plates 12. The members 2 are divided at their upper ends to form pairs of half-fingers 8 whilst the outer members 3 form single half-fingers 9 to complete the four finger members. The outer members 3 have continuations forming handles 14 provided with contact screws 16 adapted to engage the ends 15 of the members 2. Thus, an inward movement of the handles 14 first causes the half-fingers 9 to move outwardly stretching the two outer fingers, and then operates the members 2 so that the halffingers 8 also move outwardly stretching the two inner fingers, the movement of the pivoted members being limited by abutments 17 on the member 1. Compression springs 18, 19 bring the members 3, 2 'back to their normal position when the handles 14 are released.
Patent GB-614568-A (GB)
Title: Improvements in or relating to the taking-off of fibre webs or fleeces from smooth rollers in preparatory spinning operations
IPC: D01G15/96
Filed: 1946-07-12
Abstract: 614,568. Preparing fibres for spinning. LISTER & SONS, Ltd., H., and CROWTHER, L. July 12, 1946, No. 20904. [Class 120(i)] A fibre web is removed from a smoothfaced roller in preparatory spinning operations wherein the web is carried freely by the roller, by the use of a doffing roller rotated at a surface speed not greater than, and in the opposite direction to, that of the smooth roller in close proximity thereto and provided with wire teeth into which the web is pressed freely by the smooth roller to be carried round by the doffing roller to a stripping point. As shown, the invention is applied to the burr-crushing apparatus of Specification 444,043. A thinly spread out web 1 produced on a carding engine is passed between crushing rollers 2, 3 and remains in contact with the lower roller 3 until it is removed therefrom by a doffer roller 4 covered with card clothing the points of which are inclined rearwardly relative to their direction of motion. Doffer 4 rotates with a lower surface speed than roller 3 so that the web is condensed or thickened to produce a stronger sliver when it is stripped from the doffer by a fly comb 20, or alternatively by a small card-covered roller or by rotating beater blades, and delivered to a conveyer. The web 1 is conveyed from the carding engine to the crushing rollers by a pair of small conveyer rollers 34, 35 covered with card clothing of the normal density of carding machine stripper rollers, the wire points being inclined rearwardly relative to their direction of motion. Rollers 34 and 35 are set almost touching each other so as to clean each other and rotate with a slightly lower surface speed than roller 3. Rollers 34, 35 are adjustably mounted on supporting rods 36, and roller 4 and fly comb 20 are similarly mounted on supporting rods 17. The fly comb shaft is mounted in needle bearings 22, the oscillating mechanism being belt driven from a main pulley on the shaft 6 of roller 3, and rollers 4, 34 and 35 are driven by change-gearing from shaft 6.
Patent GB-1059471-A (GB)
Title: Method and apparatus for heat exchange, more particularly for the drying of solids suspended in a gas stream and known as suspension drying
IPC: F26B17/10
Filed: 1964-05-21
Abstract: 1,059,471. Drying suspended solids; heating or cooling particulate solid materials. SCHœCHTERMANN & KREMER-BAUM A.G. FUR AUFBEREITUNG. May 21, 1964 [June 4, 1963], No. 21113/64. Headings F4G and F4U. Solids to be heated, cooled or dried are introduced through sluices 6, 6<SP>1</SP> and are supported in a stream of gas tangentially introduced through slots 2, 2<SP>1</SP> in the upper end of a vertical turbulence chamber 1 for passage in a helical path downwardly to a closed trap 9 at the lower end of the chamber, in countercurrent to a stream of heated or cooled gas tangentially introduced through a central feed pipe 7 at the lower end of the chamber, which heated or cooled gas has a lower kinetic energy than the supporting gas stream but is given the same direction of rotation as the supporting gas. The mixture of supporting and heating or cooling gas free from solids is discharged through a central aperture 1<SP>111</SP> at the upper end of the chamber. Additional heating or cooling air may be tangentially introduced through inlet channels 12.
Patent GB-423666-A (GB)
Title: Improvements in and relating to means for controlling the liquid masses of tanks for compensating the rolling of ships
IPC: B63B39/03
Filed: 1933-07-27
Abstract: 423,666. Stabilizing ships. GES. FUR ELEKTRISCHE APPARATE, 44, Wilhelm V Siemensstrasse, Marienfelde, Berlin. July 27, 1933, No. 21184. Addition to 380,051. [Class 113 (i)] In an arrangement for stabilizing ships as described in the parent Specification, switches are employed to throw over the control device and the operating device suddenly when the roll angle indicator passes its zero position. The pointer 1 operated by a gyroscope or pendulum works over a ring divided into segments 4, 5, by insulating pieces 3. The segments 4, 5 are connected up to electromagnets 7, 8 which through bell-cranks 9, control the position of a shifter working in the cylinder 10. The left or right position of the shifter determined by which of the electromagnets is energized, determines the position of the main control plunger 12 which operates the two-way cock and 15 thus opens the starboard or port roll tank 37 to suction or pressure of the continually - running blower 34. When it is desired to anticipate the switching in or out of the relays 7 and 8 prior to the ship passing through its horizontal position and thus compensating for the inertia of the water masses in the tanks, the arrangement shown in Fig. 1 is supplemented by that shown in Fig. 2. In this case the ring 2 instead of being fixed is adjustable and is given a movement opposite in sense to that of the pointer 1, by means of the fork 28 which is operated by a pin 27 attached to a finger carried by a bracket 25. The position of this bracket is determined by the position of the piston 22 of a hydraulic device, throttled by the byepass 24. The movements of the piston 22 are determined by the alternative energizing of relays 18, 19, which are electrically converted to the segments 4, 5. When it is desired to compensate for a permanent list of the ship, a hydraulic control device similar to that shown in Fig. 2, is provided, but the movement of the piston in the cylinder is so damped that the piston 22 takes up a non-symmetrical position in the cylinder when a list has been definitely established.
Patent GB-320685-A (GB)
Title: Improvements in or relating to rubber-lined pipes, containers and the like, and to the manufacture thereof
IPC: B29C70/68
Filed: 1928-07-21
Abstract: 320,685. Swindin, N., and Nordac, Ltd. July 21, 1928. Moulding hodlow-ware, indiarubber, and pipes and tubes.-A pipe 10 or other hollow article is lined with rubber by applying a liner 27 comprising uncured rubber and a vulcanization agent to the interior of the pipe &c., forcing the liner into position and shape by the introduction of fluid under pressure thereto, and then effecting vulcanization of the liner in situ preferably by heating the said fluid to the necessary temperature. The bottom flange 30 of the pipe is adapted to be supported in a recess 25 of a former 23 which is bored to receive a connection leading from conduits 12. 13 and is further recessed to receive one end of the liner, while the other end of the liner is clamped to a draw-off connection 28, Fig. 3, in order to allow free passage for any air pressed out between the liner and pipe when liquid is first admitted to the liner. The fluid, preferably a solution of calcium chloride in water, is admitted to the liner from a tank 14 by the conduit 13 so as to rise slowly v in the liner and at a temperature sufficient to soften the rubber and force it into contact with the pipe, and passes out of the connection 28 to a tank 18 and thence to a receiving tank 20 from where it is pumped back to the feed tank 14. When all the air between the liner and pipe has been removed, the connection 28 is replaced by a former 33 having a.n outlet 17, and the circulation of liquid is recommenced. The liquid in the tank 14 is now heated to its vulcanization temperature by a steam coil 15 and is circulated continuously for about half an hour, after which the pipe is' drained by means of the conduit 12 which leads to the receiver tank 20. The interior of the pipe is preferably coated, prior to lining, with a junction compound such as that described in Specification 275,316, [Class 70, Indiarubber &c.], while the system described in Specification 265,234, [Class 2 (iii), Dyes &c. ], may be used for effecting circulation of the vulcanizing agent. Specification 2992/88, [Class 1, Acids, alkalies, &c.], also is referred to.
Patent GB-875984-A (GB)
Title: A process for the production of n-substituted n-aryl ureas
IPC: C07D295/215
Filed: 1960-06-16
Abstract: N1-substituted N-aryl ureas are prepared by reacting carbon monoxide with a mixture of a primary or a secondary amine (or both) and an aromatic nitro compound in the liquid state in the presence of a copper compound.  Suitable amines are dimethylamine, cyclohexylamine, pyrrolidine, piperidine and morpholine, nitrobenzene is preferred as the aromatic nitro compound, and specified copper compounds are the salts such as chloride, bromide, nitrate, sulphate and acetate, and cupric oxide and hydroxide when conditions are such that they form complexes with the amine used.  Symmetrical ureas are obtained as by-products.  In an example, piperidine and nitrobenzene are reacted with CO in the presence of CuCl2-2H2O to produce N1-pentamethylene-N-phenyl-urea and N,N1-bis-pentamethylene-urea. Other specified products are anilino piperidino carbonyl, 4-chloroanilino piperidino carbonyl, 2-methyl-4-chloroanilino piperidino carbonyl, and 4-chloroanilino morpholino carbonyl.ALSO:Herbicidal compositions comprise the usual carriers, and as active ingredient an N1-substituted N-aryl urea with or without a corresponding symmetrical urea (see Group IV (b)).
Patent GB-966526-A (GB)
Title: Improvements in or relating to the manufacture of low pressure mercury vapour fluorescent electric discharge lamps
Inventor: CLEMENTS JOHN AVENT
IPC: H01J9/20
Filed: 1960-06-16
Abstract: A phosphor suspension for coating the envelope of a low-pressure mercury vapour discharge lamp consists of 100 grs. of powdered phosphor having a particle size mainly in the range of 5-25 microns, 200 mls. of water and 12.5 mls. of an aqueous solution of ammonium polymethacrylate (Trade Name "Vulcastab"). The envelope is baked for approximately six minutes at a temperature of about 450 DEG  to 500 DEG  C., preferably initially at about 450 DEG  C. and subsequently at 500 DEG  C. with no intermediate cooling. Baking can be effected by introducing the envelope into an oven maintained at about 450 DEG C. and either raising the temperature to about 500 DEG  C. or transferring the envelope to a region of the oven maintained at about 500 DEG  C. A turret machine for coating a number of envelopes is described.  Specification 917,832 is referred to.
Patent GB-1385390-A (GB)
Title: Aircraft
IPC: B64D27/20
Filed: 1972-05-06
Abstract: 1385390 Aircraft BRITISH AIRCRAFT CORP Ltd 30 April 1973 [6 May 1972] 21211/72 Heading B7G An aircraft comprises a fuselage 3 high mounted wings 7 with anhedral, and a jet propulsion engine 2 mounted on each side of the fuselage substantially wholly between the leading and trailing edges of the associated wing by means of structure 14 which provides support also for an undercarriage leg 15. The undercarriage is pivotable on a fore-and-aft axis in structure 14 for sideways retraction, partly within the structure and partly within the fuselage.
Patent GB-517124-A (GB)
Title: Improvements in or relating to pumping apparatus
IPC: F16N13/16
Filed: 1938-07-18
Abstract: 517,124. Lubricating pumps. TECALEMIT, Ltd. July 18, 1938, No. 21299. Convention date, July 19, 1937. Addition to 499,892. [Class 102 (i)] Relates to pumps for lubricants as described in the parent Specification, in which a piston 43 discharges lubricant from a lower cylinder 17, past a check valve 27 into an upper cylinder 13 to an outlet 15, and, on the down stroke, lubricant is discharged from the upper cylinder by the descent of the portion 2 of the piston-rod of increased diameter. According to the invention restricted openings are formed between the space below the piston 43 and the exterior of the cylinder, by passages 21 in the suction valve 19. The piston rod 29 is of large diameter and, in dealing with thin lubricants, the volume of lubricant drawn in beneath the piston 43 is more than that required to fill the space above the piston, the excess being discharged through the passages 21. When pumping viscous lubricants, although the space below the piston 43 is not filled sufficient lubricant is drawn in to fill the space above the piston. The bucket. or piston 43 comprises a body sliding on a reduced portion 45 of the piston rod and having axial and radial passages 47, 49. The body seats on a disc 41. The pump is operated by a fluid-pressure cylinder 3.
Patent GB-1475787-A (GB)
Title: Self-contained front projection display cabinet
IPC: G03B21/10
Filed: 1974-05-14
Abstract: 1475787 Projection apparatus PB HINDS 14 May 1974 21319/74 Heading G2J A self-contained front projection display cabinet 10 comprises a slide or cine projector 26 which projects an image via mirrors 28, 30 on to a directional screen 20 supported by a rear wall 22, the image being viewed through a window 16 in the front wall 18 and the mirror 30 being located so as to block any ambient light from being directed to the screen along the same path as that of the projected image. This provides a bright, contrasting image. A directional screen is one which directs substantially all of the image light towards a limited region.
Patent GB-1435747-A (GB)
Title: Selective ionization detector
IPC: G01N27/62
Filed: 1973-05-04
Abstract: 1435747 Ionization detectors BODENSEEWERK PERKIN-ELMER & CO GmbH 4 May 1973 [6 May 1972] 21361/73 Heading H1D A selective ionization detector comprises a housing 10 having a gas inlet 18 at the end of a conduit 22 for sample gas to which is connected a conduit 24 for combustible gas opening into the sample gas conduit upstream of the inlet so that combustible gas supplied through this conduit will mix with the sample gas before reaching the inlet, a pair of spaced electrodes 30 and 42, the first 30 of which includes an alkali source in the form of a body of alkali-containing glass and is located adjacent the gas inlet so that gas flowing from the inlet will be directed over the surface of the alkali glass body, and heating means capable of supplying sufficient thermal energy to the glass body to maintain it in a viscous or softened condition during operation. The gas inlet 18 terminates in a nozzle immediately below an aperture 20 in a partition 12 dividing the housing 10 into chambers 14 and 16. A sample gas from the separating column of a gas chromatograph mixed with a carrier gas is supplied to the nozzle through conduit 22. The combustible gas, e.g. hydrogen, is supplied through conduit 24 and combustion air is supplied through a conduit 28 to produce a flame 26. A bead 30 of alkali-rich glass is suspended in chamber 16 by leads 32 and 34 which also supply heating current to a heating resistor 40. Electrode 42 is a collecting electrode. Alternatively the bead 30 is suspended in the flame 26 on a platinum bracket 52. Combustion products are exhausted through outlet 50. Circuit arrangements are described (Figs. 2, 3, and 6, not shown) in which the nozzle is either maintained at a potential negative with respect to the collecting electrode or at the same potential as the collecting electrode or is connected to a switch to enable either connection to be selected so that the detector can be switched from selective to non-selective operation. The alkali in the bead 30 may berubidium for detecting nitrogen, or sodium for detecting phosphorus.
Patent GB-236415-A (GB)
Title: Improvements in devices for the prevention of skidding and slipping of tyres
IPC: B60C27/08
Filed: 1924-09-10
Abstract: 236,415. Jowitt, S. G. Sept. 10, 1924. Tread bands.-A non-skid chain 2 is fitted with spaced transverse rods 3, 4 twisted around the links, as shown, or secured by welding. The rods are preferably obliquely arranged, adjacent rods being oppositely inclined.
Patent GB-800358-A (GB)
Title: Improvements in or relating to control devices for controlling the flow of fluid
Inventor: DALY JAMES URBAN
IPC: G05D23/12
Filed: 1956-07-11
Abstract: 800,358. Springs. ROBERTSHAW - FULTON CONTROLS CO. July 11, 1956 [Nov. 21, 1955], No. 21476/56. Class 108(3) [Also in Group XXIX] An over-centre spring for use in a valve (see Group XXIX) comprises a ring 106 and two arms 108, a cross-section through the diameter including the arms 108 being of cone shape. The two arms 108 engage between flanges on a spindle biasing a valve disc to engage with its seat.
Patent GB-136901-A (GB)
Title: Improvements in and relating to Portable Domestic Receptacles or Pails for Dust or Ashes.
Inventor: LINZELL ERNEST
IPC: F24B13/00
Filed: 1918-12-23
Abstract: 136,901. Linzell, E. Dec. 23, 1918. Scoops. - A scoop c used in conjunction with a dust receptacle has a flange or guard f of sufficient size to cover the opening in the lid of the receptacle.
Patent GB-484645-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/19
Filed: 1937-08-05
Abstract: 484,645. Vacuum cleaners. REPLOCLE,D.B. Aug. 5, 1937, No. 21627. Convention date, Aug. 5, 1936. [Classes 8 (i) and 8 (ii)] Above the floor nozzle 34 of a vacuum cleaner a motor 10 surmounts the fan 11 separated from the nozzle. A filter chamber 15 is pivotally supported from the face chamber; it is connected to an inlet 13 of the fan chamber and provided with rigid tubular handle to which is attached a hose, either carrying an independent nozzle or inserted in an outlet 33 of the floor nozzle. Air is drawn from the nozzle through a seamless paper filter bag supported in a coarse-meshed outer bag in the filter chamber 15 into the fan chamber and is discharged around and cools the motor chamber. The floor nozzle contains a brush 43 and an agitator 44 carrying beaters driven in opposite senses from a sleeve on the motor shaft which has a cone clutch 47 caused to engage the fan by means of a lever 51 operated by the insertion of the hose in the outlet 33. The nozzle carries yieldingly a serrated skirt 54, and is supported by yieldingly mounted rollers 56. The filter casing may be supported for propulsion by rollers 82 carried by a hinged bracket 81. The filter casing may have a transparent top to which the tubular handle 30 and the top of the filter bag are secured, and may contain a lamp 28 illuminating the cap and the dust drawn in.