baber/WOPTO huggingface dataset:
Patent GB-447045-A (GB)
Title: Improvements relating to the preparation of printing surfaces for colour printing
IPC: G03F3/00
Filed: 1934-08-13
Abstract: 447,045. Photomechanical printing- surfaces. YELLAND, N. W., Capesthorne, Wythenshaw Road, Northenden, Cheshire. Aug. 13, 1934, No. 23351. [Class 98 (ii)] To provide the necessary allowance between the colour areas on engraved surfaces for multicolour printing, a negative is prepared having the boundary line round each area in intaglio or relief and these lines are projected onto a sensitive surface spaced from the negative so that an image is produced with a double border line. An image or ground may be enclosed within each boundary line on the negative, for example, by exposing a plate bearing an image of the ground under an engraver's sketch, or a positive copy thereof, bearing the boundary lines, and developing as a wash-out relief so as to remove the ground in the unexposed areas. Or, a plate bearing an image of the ground may be exposed for a sufficient time to destroy the ground under the transparent lines. The thickness of the double line produced may be varied by varying the distance between the negative and the sensitive surface or by altering the size of the boundary lines on the negative. It may also be varied by employing a different thickness for the sensitive material which may be of gelatine sensitized with a bichromate. The ground may be produced by mechanical or photographic means, e.g. by exposure through a screen. To still further increase the allowance, a positive having broader lines may be made from a negative of the original using a ring of lamps as a light source, and employed as the original as described.
Patent GB-465404-A (GB)
Title: Improvements in impregnators, disinfectors, autoclaves and other heated tanks and vessels
IPC: B01J3/04
Filed: 1936-08-06
Abstract: 465,404. Heating liquids. BROWN, A. G., and MORGAN, I. C. Aug. 6, 1936, No. 23439/35. [Class 64 (i)] Tanks, vats, impregnators, disinfectors, or autoclaves 1 for heating or cooling material therein have internal chambers 2 containing oil and coils or rows of pipes 3 through which steam or cold or hot water may be passed. An external jacket 4, contains oil under atmospheric pressure and the pipes may also extend under the bottom and round the sides of the tank.
Patent GB-1337506-A (GB)
Title: Oxobenzofuran carboxamide anti-inflammatory agents
IPC: C07C59/64
Filed: 1971-04-19
Abstract: 1337506 Benzofuran derivatives PFIZER Inc 19 April 1971 [15 Oct 1970] 23468/71 Heading C2C Novel benzofuran derivatives of the formula and the base salts thereof with pharmacologically acceptable cations, wherein X and Y each are H, F, Cl, Br, C 1-5  alkyl, C 1-5  alkoxy, CF 3  or OCF 3 ; and R is naphthyl, phenyl, or mono- or di-substituted phenyl wherein each substituent is chosen from F, Cl, Br, C 1-4  alkyl, C 1-3  alkoxy or C 1-3  alkylthio CF 3  or OCF 3 ; are prepared by reacting the appropriately substituted 2,3- dihydrofuran-2-ones with isocyanates of the formula RNCO or by reacting the appropriate 2,3 - dihydrofuran - 2 - ones in the form of alkali metal or alkaline earth metal salts with ureas of the formula (R<SP>1</SP>) 2 NCONHR, wherein R<SP>1</SP> is an aryl group. 2,3 - Dihydrobenzofuran - 2 - ones substituted by one or two C 1-5  alkyl groups are obtained by cyclizing the corresponding 2-hydroxyphenylacetic acids. Pharmaceutical compositions, suitable for oral or parenteral administration, contain the above novel compounds or salts thereof and carriers. The compounds possess anti-inflammatory activity.
Patent GB-360061-A (GB)
Title: Improvements in or relating to parachutes
IPC: B64D17/52
Filed: 1930-08-05
Abstract: 360,061. Parachute packs. LUNDHOLM AKTIEBOLAG, C. H., 4, Võstra Trõdgardsgatan, Stockholm.-(Assignees of Lundholm, C. H.; 4, Võstra Tradgardsgatan, Stockholm.) Aug. 5, 1930, No. 23475. Convention date, Aug. 24, 1929. [Class 4.] Parachutes adapted for combined manual and automatic release have their packs closed by two flaps interconnected by a closing member separate from the pack itself, one flap being released manually and the other automatically, the arrangement being such that release of either flap causes release of the other which is opened by elastic means and carries the closing member with it. The pilot parachute is nested under flaps 20, 20<1>, Fig. 1, which are secured to the sides of the pack 10 and 'are opened by blade springs 21 which tend to roll up the flaps outwardly. Rubber springs may also be employed secured to loops 22 on the free edges of the flaps and to corresponding loops on the back of the pack. The closing member 23, Fig. 4, is disposed over the pilot parachute and under the flaps 20, 201 and is provided with conical studs 24 which project through corresponding eyelets in the flap edges, the flaps being secured by piano wires 26, 27 respectively passed through holes in studs 24. Wire 26 is passed through a flexible tube 28 and is connected to a pull ring 29 and wire 27 is guided through a tube 30 and connected to the static line 31 of the parachute. Line 31 terminates in a loop 32 by which it is secured to the aircraft. The studs 24 may be rotatably mounted to avoid sticking of the wire. The pack proper containing the main parachute is closed by flaps 11, 12, Fig. 3, of which the free ends are divided into parts 11a, 11b and 12a, 12b respectively, all except the last which is fitted with loops 13 being provided with holes. The holes in the lower parts 11a, 12a allow of the insertion of a temporary fastening means such as a rod to hold the flaps in position whilst the loops 13 on part 12b are passed through the holes in part 11b and secured by pins 16 secured to shroud lines 17 of the pilot parachute. In modifications rings may be substituted for the studs 24 and the guide 30 may be omitted, the wire 27 being connected directly to the line 31.
Patent GB-835561-A (GB)
Title: Improvements in or relating to a method and apparatus for measuring the width of a material
IPC: G01B11/04
Filed: 1956-07-30
Abstract: 835,561. Photo-electric width measuring apparatus. EXATEST GESELLSCHAFT FUR MESSTECHNIK. July 30, 1956 [Juy 28, 1955], No. 23528/56. Addition to 787,385 and modified by 810,982. Class 40 (3). [Also in Group XL (c)] In a method of measuring the width of material, wherein one television camera scans one edge and another television camera scans the opposite edge of the material and the resulting images are superimposed in intersecting relationship one upon the other on the screen of a single television receiver so that any variation in the width of the material causes displacement of the point of intersection of the images on the receiver screen, means are provided whereby, upon bodily transverse movement of the material, the mean axes of the electron beams of the two television cameras or the mean axes of the electron beam of the receiver are turned so that the point of intersection of the images on the receiver screen undergoes little or no displacement. The turning of the electron beams is effected by a control signal superimposed upon the sawtooth line deflection signal. The control signal may be derived from the line control of one of the cameras by means of a circuit producing an output voltage depending upon the ratio of the length alpha<1>, Fig. 11, of brightly illuminated section to the length #<1> of weakly illuminated section in the individual lines. In one circuit arrangement, Figs. 12 and 13 (not shown), the voltage supplied by the camera is converted, by an impulse differentiation circuit, into voltage peaks which control a multivibrator the output of which comprises the rectangular waveform of Fig. 13a in which W represents the duration of the bright portion of the line. The waveform of Fig. 13a is smoothed and applied to a direct-voltage amplifier, Fig. 14 (not shown), which maintains a condenser at an appropriate voltage which constitutes the control signal, the amplifier being blocked by the frame blanking pulses so that the condenser retains this voltage over the pause between consecutive frames. In another arrangement the camera voltage, Fig. 15a, is applied to an RC amplifier including a valve biased to cut off at a value indicated by the line 1<1> so as to produce the waveform shown in Fig. 15b, in which w corresponds to the period of time required by the camera beam to scan the brightly illuminated line portion and from which a mean direct current control signal can be derived. The control signal may also be derived from a photo-cell F1, Fig. 16, mounted on the receiver tube above the boundary line of the dark measuring wedge. In a further arrangement, Fig. 17, an image of the edge of the material K2 is formed on a photo-cell F2 from which the control voltage is derived. A mask M is provided to ensure that the control voltage is proportional to the transverse displacement of the material.
Patent GB-236251-A (GB)
Abstract: 236,251. Vickers, Ltd., and Gray, P. W. March 3, 1924. Sights and methods of sighting. - Relates to apparatus for controlling the aim of anti-aircraft guns by continuous mechanical calculation of the vertical and lateral deflections corresponding to the distance travelled by the target during the time of flight of the shell. The invention relates particularly to apparatus of the kind comprising an infinitely variable speed device driven at constant speed and connected to the observing sight; the speed-varying element being adjusted to cause the sight to follow the target. According to the invention, the adjusting handle operates through mechanism which multiplies the displacement of the element by the time of flight, the position of the handle which is indicated, or transmitted to the gun station, being a measure of the deflection for a given time of flight. The invention is shown applied to the apparatus for determining vertical and horizontal deflections described in Specification 236,250. The variable speed device comprises a pair of discs d<3x>, D<2> driven at constant speed and ball-carriers d', D<2x> movable radially on the discs by adjusting the vertical-deflection handle d and the horizontal-deflection handle D through the intermediary of calculating apparatus which introduces the time of flight, as described in the above-mentioned Specification. The ball-carriers engage rollers d<3>, D<1x> which are connected through the calculating apparatus described in the abovementioned Specification with the elevation sight A and the training sight A'. The dial d<8x> serves to indicate the vertical deflection, the chart E' the fuse member, and the crart D<5x> the lateral deflection in the plane of sight.
Patent GB-761243-A (GB)
Title: Improvements in optical gauging methods and apparatus
Inventor: MATHEWS LEONARD WILLIAM
IPC: G02B21/00
Filed: 1953-08-28
Abstract: 761,243. Optical-projection gauges. SPERRY GYROSCOPE CO., Ltd. Nov. 26, 1954 [Aug. 28, 1953], No. 23804/53. Class 106 (2). The dimensions and/or locations of the inner opening of a passage through a wall of a hollow body, e.g. of the ports A, B, C in a hydraulic sleeve 10 are gauged by projecting a beam of light 18, e.g. from a source 17 via parabolic reflector 19, lenses 20a, 20b, mask 21, and probe 22 into the interior of the body and via a prism 23 through the passage to be tested to produce an image of the inner opening of the passage on a screen 24, preferably magnified by a microscope 25. As shown, the sleeve is mounted on a mandrel 11 having a datum face X-X and may be rotated in an accurate journal mounting 12. Specification 731,539 is referred to.
Patent GB-239723-A (GB)
Title: Improvements in and relating to crushing rollers
IPC: B02C4/30
Filed: 1924-10-08
Abstract: 239,723. Millar, G. W., and Blair, D. A. Oct. 8, 1924. Roller mills. - Relates to crushing-rollers for use in cane-crushing mills &c. and of the kind having incorporated therein steel or other studs, pegs, pins, or their equivalent which present a harder surface than the iron of the roller. The steel or other studs &c. are positioned in a mould, and the roller then cast so as to incorporate the studs &c. therein. The projecting ends of the studs a are afterwards broken off as shown in the middle portion of the roller, and the roller is machined to form a series of circumferential grooves or ridges b as usual. The studs may be of round, square, triangular, or other crosssection.
Patent GB-796168-A (GB)
Title: Improvements in machines for continuous bleaching and dyeing
IPC: D06B3/16
Filed: 1955-08-18
Abstract: <PICT:0796168/IV (b)/1> Apparatus for dyeing, bleaching or boiling textile fibres, hair, or a continuous length of material, comprises a U-shaped tank having one arm 2 of smaller cross-sectional area than the other arm which has a lower portion sloping at about 30 degrees, the arms being joined together at the bottom by a chamber which decreases in cross-section towards the arm 2, in which apparatus the level of the treating liquid in the arm 2 is maintained below the level of the liquid in the larger arm by means of a pump 20 which returns the liquid in the arm 2 via a duct 14 and outlet 9 to the larger arm.  The bath may be heated by thermostatically controlled steam or electric coils 11, 12, and the pressure drop in the bath which should be present due to the liquid head is equalized by the resistance to flow of the material.  The conduit 15 branching from the return duct 14 supplies an auxiliary tank 21 provided with an overflow 16 and a float valve so that if the level in the reservoir rises from a normal level a regulator is operated by the arm of the float valve to adjust the speed of operation of the whole machine, thus providing automatic control of its continuous operation.  The discharge rate of the machine is controlled by a column 22 having a float 23 which rises and falls with the level in the arm 2 and in so doing controls the output of the pump 20 by means of a butterfly valve 27 in the duct 14, and also makes one of the contacts 32 thus accelerating or reducing the speed of the take-off roller 30 and lighting warning lamps. If a continuous length material is being treated it is folded into the larger arm of the tank by a known mechanism, and drawn out by another known mechanism, a roller 30 being shown, the speed of circulation of the bath depending upon the pressure drop of the liquid, that is the difference between the liquid levels in the arms, during the passage of the material through the apparatus.  If the material to be treated consists of hanks, flocks, hair or fluff the feeding device may consist of a conveyer belt provided with cavities or hooks which discharge into the load arm.  At the outlet arm 2 a conveyer of the same type lifts up the material from the bottom of the tank.
Patent GB-586342-A (GB)
Title: Improvements in wall construction
IPC: E04B1/08
Filed: 1944-11-29
Abstract: 586,342. Wall stays. BROWN, D. Nov. 29, 1944, No. 23837. [Classes 20 (ii) and 20 (iv)] In a wall or partition formed of interlocked vertical cavity panels of sheet material, continuous flexible stay members are provided tying anchorages in the foundation to members bearing on the tops of the panels. In the form shown, each stay member comprises a twisted double metal strip a the lower end of which passes round a pin k inserted in a loop c of an anchorage d embedded in concrete j. The upper end projects through a cover plate p bearing on the panel elements g, h, and through a clamp r, which connects the cover plate to a supporting T-beam t, and the stay is tensioned by a wedge u. A wedge may also be provided at the lower ends of the strips a and an alternative form of anchorage is described. The stay member may be of wire. Specification 414,677 is referred to
Patent GB-1151233-A (GB)
Title: Improvements in or relating to Heat Exchange Assemblies
IPC: F28F9/16
Filed: 1966-05-27
Abstract: 1,151,233. Tube connections. Q.V.F. Ltd., and R. C. BRAIN. 20 Feb., 1967 [27 May, 1966], No. 23838/66. Heading F2G. [Also in Division F4] The tubes 1 of a heat exchanger assembly are connected to the end walls 3, 4 thereof by annular members 2 of an elastomeric material such as silicone or foamed silicone rubber. The members 2 are adhered to both the tubes and the walls of the heat exchanger within the thickness of the walls. The tubes may be of glass and the walls of metal. The assembly may be used for liquid/liquid, liquid/gas, or gas/gas heat exchange.
Patent GB-1338442-A (GB)
Title: Containers
IPC: B65D41/32
Filed: 1971-04-19
Abstract: 1338442 Easy-opening cans AMERICAN CAN CO 19 April 1971 [13 March 1970] 23866/71 Heading B8D A pull tab 10 riveted to a scoreline-defined removable panel of an aluminium can end, comprises a flat web portion 22 joined to a nose portion 28 by a rounded shoulder portion 26 whereby the nose portion is spaced above the panel in a plane parallel to the plane of the web portion, and a rib 32 in the nose portion projecting into the space between the planes and extending from the shoulder to the nose portion end. The panel is provided with an ancillary vent scoreline 74 which is ruptured prior to the panel-defining score 62, and the rib localizes the rupturing pressure applied to the score 62 so that the necessary manually-applied opening force is reduced and enables the tab to be made of aluminium. A further pair of scorelines 88 are provided in the panel portion between the scorelines 64 and 74, said pair of scorelines defining a flexural axis about which the panel portion pivots when the tab is raised to effect rupturing of the scorelines 62 and 74. The panel may be of relatively small size.
Patent GB-281804-A (GB)
Title: Improvements in or relating to artificial legs
IPC: A61F2/60
Filed: 1926-09-28
Abstract: 281,804. Swain, J. A., and Shaw, A. W. Sept. 28, 1926. Limbs, artificial.-Artificial legs provided with socket-pieces connected to the trunk of the wearer and to the leg by pairs of interlatching straps hinged on transverse pivot pins have the axis of one pivot pin lower than that of the other. As shown, the pivot 5 connects the usual male and female straps on the right side of the leg, the lower pivot 7 on the left side connecting straps 8, 9 through a link 10 having a pin-and-slot connection 11, 12, the arrangement permitting a twisting movement of the leg when the wearer sits down. A further pin-and-slot connection 13, 14 permits relative movement between the link 10 and strap 9. Specification 188,592 is referred to.
Patent GB-240478-A (GB)
Title: Improvements in and relating to moulding processes and apparatus
IPC: B28B1/04
Filed: 1925-09-25
Abstract: 240,478. British Thomson-Houston Co., Ltd., (Assignees of Wry, T. A.). Sept. 25, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Tamping-machines; processes.-Electrical insulators &c. are moulded from compositions such as mixtures of asbestos, mineral filler, and asphaltdc or gummy binder by subjecting the composition to a succession of blows of about one ton pressure. As shown, pressure is applied to a charge of composition within a mould by a pneumatic hammer 10 operated by compressed air supplied through a pipe 31 fitted with a valve 32 controlled through a timing-device so that about 45 blows are delivered. After moulding, the hammer 10 is raised by a piston 27 operated by compressed air through a pipe 29 fitted with a hand-operated valve 30. The moulded article is ejected by a rod 54 connected to a lever 52 which is turned about a pivot 53 by a rod 51 engaged through a latch 56 by a hook 58 on a rod 46 depending from crossbar 47 cnnnecte3 to the hammer 10. The lever 52 may be operared manually through an arm 60 and the latch 58 may be furnished with a. lever 57. The valve 32 is opened, against the action of a spring 39, through a lever 38 connected by a chain 37 to a hand lever 36 which is raised until a pin 35 is engaged by a latch 34; a weight 40, raised by the lever 36, falls under the control of a dash-pot 41 and closes an electric circuit through contacts 42, thereby energizing a solenoid 33 to release the latch 34.
Patent GB-264101-A (GB)
Title: Improvements in adjustable wrenches
IPC: B25B13/16
Filed: 1926-09-29
Abstract: 264,101. Larson, J. V. Sept. 29, 1926. Pivoted and sliding jaw wrenches.-An adjustable wrench comprises a fixed jaw member 8 having an operating-handle 5 carrying a U- shaped housing 1 for a nut 11 which engages the threaded portion of the shank 10 of the movable jaw 9 and which bears at its forward end against a rocker yoke 12 located in the housing 1. The rocker yoke consists of a slotted disc portion 13 with an upper extension 14 guided in the housing 1 and a lower portion 16 which is bent up at the forward end 15 to form a pivot bearing in recesses 3 of the housing and in a recess of a lug 6 on the handle. The rear of the portion 16 has a lug 17 located in the path of the operating nut 11 and bearing on curved surfaces 4 of the housing. In operation, the pressure of the thumb on the rear of the shank 10 overcomes the closing-pressure of a spring 18 to apply the wrench to a pipe &c.
Patent GB-316980-A (GB)
Title: Improvements in or relating to oil cooling systems for aircraft engines
IPC: F01P11/08
Filed: 1929-08-06
Abstract: 316,980. Boeing Airplane Co., (Assignees of Monteith, C. M., and Pierce, L. L.). Aug. 7, 1928, [Convention date]. Propelling. - An aircooled radiator of annular shape for the lubricating oil of an aeroplane engine having air tubes 12, Figs. 3 and 4, and inlet and outlet openings 14, 13 respectively for the oil is disposed between the engine 1 and the apertured nose 3 of the aeroplane. The flow of air through the apertures in the nose is regulated by a similarly apertured rotatable disc 5 operated by the pilot. While the oil remains cool, it is circulated by a pump from the tank 16 through a pipe 22 into the engine crankease and thence through the pipe 17 and the upper part of a pipe 15 having a spring-urged pivoted flap valve 19 back to the tank. When the oil becomes heated, the pressure is insufficient to open the flap valve and the oil flows through the lower part of the pipe 15 into the oil cooler and returns therefrom through a pipe 18.