baber/WOPTO huggingface dataset:
Patent GB-1195828-A (GB)
Title: Improvements in or relating to Variable Phase Shifters
IPC: H01P1/18
Filed: 1969-05-30
Abstract: 1,195,828. Phase shifters. THOMSON CSF. 30 May, 1969 [31 May, 1968], No. 27484/69. Heading H1W. A variable phase-shifter comprises means for dividing an input signal into two components of constant relative phase and variable relative amplitude, and a circulator for vectorially adding the two components. As shown, the input signal is divided by a directional coupler 4 into equal amplitude components which are fed through attenuators 32, 33 and variable amplifiers 6, 11 respectively to ports 1 and 2 of a circulator 7 having an output port 8. Amplifier 11 is mismatched to the circulator 7 so that the signal proceeding in an anticlockwise direction from port 1 to port 8 is reflected at the output terminals of the amplifier. Taking into account the 90-degree phase shift of the coupler 4 and the subsequent difference in path lengths, the components U, U<SP>1</SP> arrive at the port 8 with a constant phase difference # and add to produce a signal R of phase #. It can be seen from the vector diagram that the phase of R varies with the amplitudes of U and U<SP>1</SP>, and that maximum variation occurs when either U or U<SP>1</SP> is reduced to zero. If the control terminals 12, 13 of amplifiers 6, 11 are fed by equal voltages in antiphase then, assuming identical amplifiers with linear response, U + U<SP>1</SP> = B where B is a voltage equal to the maximum value of U and of U<SP>1</SP>, and 9 varies from 0 to #. The amplitude of R does not, however, remain constant. To obtain an output of constant amplitude R, the amplitudes U and U<SP>1</SP> of the components must be equal respectively to Rsin (#-#)/sin # and Rsin#/ sin # (deducible from the vector diagram). To this end, the amplifiers are controlled by a modulator 36 and phase comparator 37. One of the signals fed to the comparator may be reference signal and the other may be derived from the output 8.
Patent GB-736495-A (GB)
Title: Improvements in or relating to hydraulic copying attachments for lathes milling machines and the like
IPC: B23Q35/18
Filed: 1953-02-23
Abstract: 736,495. Copy-turning and milling. BRIDGES, G. N. Feb. 23, 1953 [Nov. 23, 1951], No. 27527/51. Class 83 (3). A hydraulic copying attachment for lathes or milling machines in which deflections of a tracer finger moving over a stationary pattern actuate a hydraulic control for a piston and cylinder, the cylinder being connected to a tool holder, comprises axially movable valve members in the hydraulic control which operate in a cylindrical bore formed with ports which are closed by end faces of associated valve members abutting against a shoulder or interference in the bore. The tool holder 8, Fig. 1, is adjustable on the upper part of an inclined transverse slide 7 which has an extension 1 secured to a cylinder 2 moving over a piston 3 anchored to a base 6. A hydraulic control 13 (see below) is secured below the cylinder and delivers pressure fluid to the cylinder. A pair of brackets 18, Fig. 7, fixed to the bed of the machine, carry a slide 16 along which centres 14 for supporting a pattern are adjustable. The pattern may be a finished workpiece or a flat template. The tracer finger 9 is carried in a bracket 10 pivoted at 9a on the slide carrying the tool-holder. An arm 11 projects from the bracket 10 and carries a pin 12 which engages a plunger A, Figs. 1 and 4, forming part of the hydraulic control. Fluid-pressure copying.-The tracer-controlled plunger A, Fig. 4, is carried in an end closure of the control valve 13 and in addition to the axial movement imposed by the tracer against springs H, V, rapid movement of the tool slide may be obtained by rotation of a screwed sleeve W which also moves the plunger A. The sleeve W is provided with grooves by which it may be turned by a cable from a remote-control handle on the tool slide. On movement of the plunger to the right from the position shown, a valve sleeve B is forced against a valve C and shoulders C1, C2 close ports or interferences D, E. The springs V, H are compressed and the ports F, G opened by the movement of collars C3, C4. Oil passes through an inlet I into an annulus a through the port G and into cylinder 2 on the side M of the piston 3. The cylinder 2 and tool holder 8 thus move to the right. Similarly an opposite movement of the plunger.A gives a movement of cylinder 2 to the left. When used on a milling-machine the cylinder 2 and hydraulic control unit may be in separate housings, the cylinder being connected to the tool carrier of the machine.
Patent GB-483034-A (GB)
Title: Improvements in or relating to a method of and means for producing directional oscillations
IPC: B06B1/16
Filed: 1936-10-10
Abstract: 483,034. Vibratory mechanism. DEHN, F. B. (Losenhausenwerk D³sseldorfer Maschinenbau Akt.-Ges.) Oct. 10, 1936, No. 27572. [Class 80 (iv)] Directed oscillatory forces are produced by mounting a rotary mass at one end of a pendulum arm and absorbing the forces which are at right-angles to the arm. In the device shown in Fig. 1, a motor 1 carries an unbalanced mass 2 the effect of which is to produce utilizable forces, indicated by the arrows 16, at the pivot 4. In the device shown in Fig. 3, the motor is connected with a housing 12 by springs 13, 14 the arm 10 being horizontal. Horizontal forces are produced at the pivot 11 in this case. A further form is similar to that shown in Fig. 1, except that the pivot is placed at the apex of a triangular frame mounted on a base, which is thus subjected to the vertical forces.
Patent GB-158393-A (GB)
Title: Improvements in bulwarks for collapsible life-boats
IPC: B63C9/02
Filed: 1919-11-10
Abstract: 158,393. MacLaren, G. Nov. 10, 1919. Collapsable vessels.-In life-boats having collapsable bulwarks the end portions of which are lifted down for stowing, fastening-means, such as levers or turn-fasteners 3, 3<a>, are provided on the coamings 1 to secure the end sections 2 in their erected positions, as shown in full lines. When taken down, these sections are stowed, as shown in dotted lines, in recesses 4 strengthened by plates 5. Hinged folding sections or stems may be provided at the fore and aft extremities of the hull.
Patent GB-1195242-A (GB)
Title: Indirect-Ion-Exchange Technique for Removal of Ions by the Formation of Insoluble Salts
Inventor: IRVING BRIAN ARTHUR
IPC: B01D15/04
Filed: 1967-06-15
Abstract: 1,195,242. Ion-exchange. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 8 May, 1968 [15 June, 1967], No. 27736/67. Heading B1J. Anions are removed from aqueous solution by precipitating with a suitable cation obtained by passing the solution through a column of ion-exchange resin in the appropriate cation form.
Patent GB-1035374-A (GB)
Title: A method and apparatus for severing individual sheets from a band formed of overlapping sheets of paper joined to a backing sheet
IPC: B26D1/20
Filed: 1964-07-06
Abstract: 1,035,374. Cutting webs. COVERPHAN ITALIANA, S.r.L. July 6, 1964 [July 10, 1963], No. 27767/64. Heading B4B. A method of severing individual sheets from a band 1, Fig. 1, formed by overlapping sheets la joined to a backing layer 2 e.g. of thermoplastic material comprises folding the band about a plate 3, Fig. 2, and severing the layer 2 between the edges of contiguous sheets 1a by means of a knife 4. Apparatus for carrying out the method comprises in addition tc the plate 3 and the knife 4, which is pneumatically operated, a guide plate 8, Fig. 4, and conveyer belts 7 between which the band is fed from a supply reel 5, guide members 12 mounted on a rotatable shaft 11 and a plate 18 supported by arms 17 on a rotatable shaft 15 and provided with resilient portions 19. Shaft 15 is rotated by means of pneumatically-operable racks 37 engaging pinions 38 on the shaft. Shaft 11 is rotated by means of an arm 14 carried by the shaft 15 engaging a tappet 13. The apparatus may be coupled directly to a laminating machine.
Patent GB-321513-A (GB)
Title: Improvements in or relating to gas treating devices for enclosed electrical apparatus
IPC: H01F27/14
Filed: 1928-09-27
Abstract: 321,513. Ellis, A. G., Diggle, H., and Associated Electrical Industries, Ltd. Sept. 27, 1928. Drying gases. - Gases for enclosed electrical apparatus are dried by desiccants in apparatus of the kind described in Specification 296,160 and so arranged that water taken up by the desiccant is drained off into a U-tube without contact with the liquid in the seal. Air entering at 10 passes through an oil seal 8 into a tower 1 and passes over baffle plates 12, 13 and trays 14, 15 containing solid calcium chloride to an outlet 6. Baffles or spouts 19 on the sloping travs are in line and direct liquid from the gas into a funnel 20 with a U-shaped escape pipe 21, which is deep enough to prevent entrance of gas and is in the first place filled with water. The side 2 of the tower is removable.
Patent GB-152219-A (GB)
Title: Improvements in smokers' pipes
IPC: A24F1/08
Filed: 1919-11-11
Abstract: 152,219. Broatch, G. N. Nov. 11, 1919. Tobacco pipes.-A perforated conical screen 14 formed with a cylindrical end 17 fits on a reduced end of the mouthpiece 12 and projects into an enlarged collecting-chamber 15 in the stem 11. Particles of tobacco and moisture are intercepted by the screen.
Patent GB-639604-A (GB)
Title: Improvements in and relating to electric incandescent lamps
IPC: H01K1/24
Filed: 1947-10-17
Abstract: 639,604. Electric incandescent lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 17, 1947, No. 27853. Convention date, Oct. 19, 1946. [Class 39 (ii)] A tubular lamp of the kind provided with a cap and leading-in wires at one end only has a rigid filament support comprising a strip of metal 8, preferably of V-shaped section, which is located adjacent to the inner wall of the tube and welded at one end to a lead-in wire 7, the other end being provided with an offset extension 9 connected to one end of the filament 10, and an integral flat extension 14 which is bent around to form a resilient semicircular spring having an unflexed diameter slightly larger than that of the interior of the tube, with which it is engaged. The filament is connected under slight tension, between the offset extension 9 and a short lead-in wire 4, and has a number of intermediate supporting wires 11 mounted in glass beads 12 which are fusion sealed to the conductor 8.
Patent GB-649894-A (GB)
Title: Improvements in and relating to electrical measuring instruments
IPC: G01R27/26
Filed: 1948-10-27
Abstract: 649,894. Q-value measurements. WILKINS, S. R., and AUTOMATIC COIL WINDER & ELECTRICAL EQUIPMENT CO., Ltd. Oct. 27,1948, No. 27905. [Class 37] Oscillations, at the frequency at which the Q-value of a circuit T is to be measured, are developed at 10 and applied over a light coupling 11 to the circuit T which is adjusted to resonance ; the frequency of oscillator 10 is then varied, as by varying C, until the voltmeter reads a suitable proportion, e.g. 1/#2 of its reading at resonance; the variation in C is then related to the Q-value of the circuit T. For measurement at another frequency, the inductance I is varied. The condenser C may have its plates shaped to give a suitably open scale. The voltmeter W may have two scales related so that a reading on one is 1/#2 of the reading on the other.
Patent GB-1031576-A (GB)
Title: Improvements in electric hot water heating systems
IPC: F24D13/04
Filed: 1964-07-07
Abstract: 1,031,576. Space heating apparatus. C. L. RILL, and N. O. RILL. July 7, 1964 [April 13, 1964], No. 27973/64. Heading F4S. Space heating apparatus comprises a hollow skirting board containing a finned tube 30 within which is an electrical heating element 58, the annular space between the element and the tube being filled with water through a pipe 22. A temperature control unit 64 supplements a room thermostat 84 and switches off the electric supply if the element overheats. In a modification, Fig. 5 (not shown), a radiator suitable for floor or wall mounting has a lower header chamber containing an electric heating element controlled by a temperature-responsive element 110 and an upper header chamber interconnected by a plurality of tubes, and may have a fan to circulate warmed air.
Patent GB-746592-A (GB)
Title: Adjustable candlebranch
IPC: F21V35/00
Filed: 1952-11-07
Abstract: 746,592. Adjustable brackets; stands. DAVIS, J. W. Feb. 3, 1954 [Nov. 7, 1952], No. 28131/52. Classes 52(3) and 52(5). A candlebranch comprises a vertical pillar G provided at its upper end with a slot H in which the corresponding ends of a pair of vertically spaced, parallel bar D are pivoted, candleholders E each provided with a slot J through which the parallel bars pass and are pivoted, and a piston A pivoted to the lower bar and sliding in a sleeve B pivotally mounted on the pillar, a screwed knob C being provided to lock the piston at any desired position in the sleeye. A second pair of parallel bars and candleholders may be similarly mounted at the other side of the pillar.
Patent GB-1472459-A (GB)
Title: Fuel pumping systems
IPC: F04C14/06
Filed: 1974-06-25
Abstract: 1472459 Centrifugal pumps; rotary positive displacement fluid machines TRW Inc 25 June 1974 [25 June 1973] 28161/74 Headings F1C and F1F In a fuel pumping system, particularly for jet aircraft engines, including a centrifugal pump 11, Fig. 1, and a positive displacement pump 23 driven by common drive means, the pumping action of the pump 23 is automatically terminated when the speed of the pumps 11 reaches a predetermined value. Thus the pump 23 is used only for low-speed and dry-lift-cranking operations. At low speeds, fuel supplied through inlet 13 passes through the pump 11, a filter 18, the pump 23, a conduit 32 and a valve 34 to outlet 21. As the speed increases the discharge pressure from both pumps increases and a pressure-relief by-pass valve 26 gradually opens to unload the pump 23. When the delivery pressure of the pump 11 reaches the desired value the valve 26 opens fully whereafter a valve 30 opens to communicate the pressure with a hydraulicallyactuated clutch 25 to disengage the pump 23. Moreover, a valve 20 opens so that the pump 11 discharges direct to the engine. Passages 14, 17 lead to and from a heater (not shown). A heater by-pass valve 15 may be provided. Valve 34 has a small passage 35 therethrough to permit air to be pumped by the pump 23 during dry-lift cranking. A return-flow conduit 37 and valve 36 are provided. In another embodiment the pump 23 is of the sliding-vane type and the vanes are locked in an inoperative position when the pump reaches a certain speed. This is achieved by a pair of weights 49, 50, Fig. 2, which swing centrifugally about pivot 51  and move a sleeve 52 axially into engagement with wedge-shaped elements 48 carried by the vanes 46 to lock the vanes in radially-retracted inoperative positions.
Patent GB-1480136-A (GB)
Title: Moulds or head boxes therefor
IPC: B22D7/10
Filed: 1974-06-25
Abstract: 1480136 Springs OGLEBAY NORTON CO 25 June 1974 [28 June 1973] 28217/74 Heading F2S [Also in Divisions B3 and E2] Refractory panels 11, 14 each have a rear surface 21 engaging a wall of a mould or headbox therefor and converging edge surfaces 22, 23 (so that the panel section is in the form of a trapezium) and are wedged by an elongated corner member 30a engaging the front surfaces 20 and edges 22, 23 and made of a pair of sheet metal strips 31a, 32a secured together as by welds 35. The strips 31a, 32a are resilient and in the form of longitudinally tapered channels having edge flanges 40-43. The angle A, Fig. 1, of the panel edges and the corresponding flanges of the corner members may be an acute or a right angle. After initially positioning panels 11-14 in the mould 10 tapered corner members 30a, 30b, 30c, 30d are driven between them. A corner member may urge each panel it contacts laterally into engagement with a further corner member as shown in Fig. 1 or with an adjacent panel.
Patent GB-830755-A (GB)
Title: Photographic camera having a shutter automatically controlled by a photoelectric regulating device
IPC: G03B7/083
Filed: 1957-09-06
Abstract: 830,755. Photo-electric exposure control. AGFA A.G. Sept. 6, 1957 [Sept. 25, 1956], No. 28269/57. Class 40 (3). To control the exposure in a camera, the shutter 21 is held open by a spring-pressed pawl 33 engaging a shoulder 36 on a spring-controlled operating disc 15 until a predetermined amount of light has fallen on a photo-cell 8 when an electronic switch 9 is closed and an electromagnet 10 energized to disengage the pawl 33. The shutter 21 is opened by a release key 31 acting through a lever 29 to disengage another lever 25 from a shoulder 22 on the disc 15 after the latter has been cocked by a setting-lever 14. The disc 15 is connected to a shutter-operating ring 20 by a spring-pressed lever 18. The photo-cell is arranged between the objective and the film and preferably receives light reflected from the film.
Patent GB-1244154-A (GB)
Title: Improvements in or relating to the moulding of shoe bottoms
Inventor: BERRILL WILLIAM HERBERT
IPC: B29D35/06
Filed: 1967-06-20
Abstract: 1,244,154. Injection moulding of shoe bottoms. BRITISH UNITED SHOE MACHINERY CO. Ltd. 19 Sept., 1968 [20 June, 1967], No. 28287/67. Heading B5A. Shoe bottoms are moulded on to uppers in a mould comprising a sole member 4 surrounded by two side members 16 which, in the mould closed position, are brought into mutual abutment and engage a gasket 10. Welt plates 18 on the side members engage an upper on a vertically reciprocable foot form 60 at the feather line thereof to complete the mould closure. With the mould thus closed, sealing assemblies 22, 32 on opposite sides of the mould, each comprising a plate 25 carrying a rubber sealing member 28 contoured to the feather line of the upper, are moved inwardly whereby the edges of the rubber members engage the upper and are deflected downwards to provide a seal between the welt plates and the upper. Further sealing assemblies 36, 46 are located at the opposed ends of the upper.
Patent GB-736604-A (GB)
Title: ºÓ-ethyl phenol separation process
Inventor: MILNER DAVID WILLIAM
IPC: C07C37/00
Filed: 1952-11-11
Abstract: A process of separating ortho ethyl phenol from a coal-tar concentrate containing the same comprises mixing the concentrate with quinaldine and removing the resulting ortho ethyl phenolquinaldine complex.  The quinaldine may be added to the 2 : 6 xylenol concentrates obtained from e.g. vertical and low temperature retort tars or to the mother liquor from the crystallization of the xylenol. The concentrate may be a cresol-xylenol fraction which has been subjected to fractional azeotropic distillation with water to produce a mixture enriched in 2 : 6 xylenol or it may be obtained by dry distillation of the cresol fraction of vertical retort tar.  In an example an ortho ethyl phenol fraction obtained by the latter method is mixed with quinaldine and cooled to obtain crystals of the complex which are treated with water and hydrochloric acid and steam distilled to obtain ortho ethyl phenol.  Specification 708,925 is referred to.
Patent GB-710846-A (GB)
Title: Improvements in monomethine dyes containing a thiobarbituric acid nucleus
IPC: C09B23/04
Filed: 1952-11-13
Abstract: 1-Ethyl-2-thiobarbituric acid is prepared by heating di-ethyl malonate and ethyl-thiourea in the presence of sodium ethoxide.ALSO:Monomethine dyes are described with the general formula:-<FORM:0710846/IV(c)/1> wherein R and R2 each represents an alkyl or cycloalkyl group such as methyl, n-butyl, n-dodecyl, or cyclohexyl, or an aryl group such as phenyl, o-, m-, or p-tolyl, or an aralkyl group such as benzyl; R1 represents a primary alkyl group with 1 to 4 carbon atoms, and Z completes a heterocyclic nucleus of the pyrrole, indole or pyrrocoline series.  These dyes may be made by condensing an aldehyde of the formula <FORM:0710846/IV(c)/2> with a thiobarbituric acid of the formula <FORM:0710846/IV(c)/3> wherein the symbols have the meanings given above.  The condensation may be carried out by refluxing the reactants in ethyl alcohol. Specification 529,440, [Group XX], is referred to.
Patent GB-1481216-A (GB)
Title: Photocurable resin composition
IPC: G03F7/032
Filed: 1974-06-27
Abstract: 1481216 Photo-sensitive printing plate precursors TEIJIN Ltd 27 June 1974 [28 June 1973 2 July 1973] 28640/74 Heading G2C [Also in Division C3] Photo-sensitive elements suitable for the production of printing plates comprise a support bearing a layer of a photocurable resin composition which comprises an unsaturated polyester having an acid value of at least 20, a cross-linking agent and a photopolymerisation initiator, said cross-linking agent consisting of (a) a compound having at least one free radical-polymerizable double band within the molecule, other than compound (b) defined below, and (b) a compound of the Formula wherein n is an integer of at least 1, p, q and, r each independently is 0 or an integer of at least 1, with the proviso that p + q + r is 2 to 6, R<SP>1</SP> is hydrogen or methyl, R<SP>2</SP> is C 1  - C 4  alkyl which may be optionally substituted by halogen, and R<SP>3</SP> is optionally substituted alkyl, aryl or acyl, the compound (b) being present in an amount of from 0À5 to 40 by wt per cent of the composition. After imagewise exposure, the elements can be developed by washing out with a dilute aqueous solution of an inorganic or organic base. The amount of compound (b) in the photocurable layer is preferably not more than 80 by wt per cent of the cross-linking agent, and the amount of cross-linking agent is preferably from 5 to 70 by wt per cent of the photocurable composition. Component (a) of the cross-linking agent is suitably a combination of (i) acrylamide or a derivative thereof and (ii) a polyacrylate or polymethacrylate ester of a polyol. In Examples the unsaturated polyester is derived from (a) fumaric acid, adipic acid, trimellitic anhydride and diethylene glycol and (b) fumaric acid, adipic acid, diethylene glycol and propylene glycol; and the photoinitiator is benzoin methyl ether, benzoin ethyl ether or anthraquinone. Optional components include polymerization inhibitors and polyethylene glycol, as filler. An adhesive and an anti-halation layer may be provided on the support.
Patent GB-428812-A (GB)
Title: Process of and apparatus for shrinking fabrics
IPC: D06C21/00
Filed: 1934-10-08
Abstract: <PICT:0428812/IV/1> <PICT:0428812/IV/2> <PICT:0428812/IV/3> Fabrics are shrunk in passing from the grip of one surface, e.g. a roller C, to the grip of another surface, e.g. the roller D, the speed of the first surface being higher than the speed of the second surface.  The rollers may be perforated and the fabric held thereon by external pressure or internal suction.  The suction in the second roller may be greater than that in the first roller to facilitate transfer of the material, and may be produced by fans &c. at the ends of the rollers.  The fabric may be initially softened and damped by steam from jets j, and may finally be dried by jets of air O around the roller D.