baber/WOPTO huggingface dataset:
Patent GB-562886-A (GB)
Title: Improvements in or relating to rate of turn meters and bank indicators
IPC: G01C19/32
Filed: 1942-12-09
Abstract: 562,886. Gyroscopic apparatus. BENDIX AVIATION CORPORATION. Dec. 9, 1942, No. 17548. Convention date, April 17, 1942. [Class 97 (iii)] In a rate-of-turn gyroscope 'and attitude indicator for aircraft, precession is opposed by a force which is a function of the tangent of the angle through which the gyroscope precesses. The angle of deflection of the gyroscope during turning at a predetermined air speed (for which the instrument is calibrated) is arranged to be substantially equal to the angle of bank so as to give a true measure of the rate of turn at that bank. As shown in Fig. 3, the precessional movement of the gimbal 11 supporting the airdriven rotor 9 with two degrees of freedom is resisted by a pair of oppositely-wound springs 35, 36; the outer coils of which make contact successively with (or move away from) rings of inwardly-directed stops 38, 39 as the springs unwind or wind up. By adjusting the stops, the resistance of the springs may be made to conform to a tangent law. The shaft 14 of the gimbal carries a fork 19 which operates a rod 20, lever 21, hollow shaft 22 and a rotatable dial 23 calibrated to indicate rate of turn in degrees per minute. The scale is read against a fixed pointer 25 attached to a ring 26 on the instrument case. Horizontal lines 28 are marked on the dial to serve as an horizon reference. During a properly banked turn when flying at calibration speed, the horizon lines 28 remain horizontal with respect to the ground. Bank of the aircraft is indicated by a miniature airplane 40 attached to a shaft 41 connected by a fork 43 to a pendulum 46. The miniature aircraft is read with reference to pointers 48 on the casing and with reference to the horizon lines 28. U.S.A. Specifications 1,407,491, 1,894,038 and 2,249,914 are referred to.
Patent GB-762237-A (GB)
Title: Improvements in or relating to the production of titanium
Inventor: GRAY JAMES JOHN
IPC: C22B34/12
Filed: 1954-06-16
Abstract: In a process for producing titanium by reaction of titanium tetrachloride with an alkali metal or alkaline earth metal, the molten reducing metal is contacted, before the reaction, with titanium metal contained in a perforated enclosure at a temperature between 500 DEG C. and the boiling point of the reducing metal.  This container, which is preferably made of mild steel, may be retained in the reaction vessel while the reaction proceeds and is removed after reaction is complete.
Patent GB-606120-A (GB)
Title: Process of and apparatus for making half-tone negatives
IPC: G03F5/06
Filed: 1945-07-11
Abstract: 606,120. Photo mechanical process and apparatus. POWERS PHOTO ENGRAVING CO. July 11, 1945, No. 17726. Convention date, Aug. 23, 1944. [Class 98 (ii)] Half-tone negatives are made by twice exposing a light-sensitive element located in the focal plane of a camera to light reflected from copy through a screen which has spaced intersecting lines wider than the spaces in between the lines, one exposure through a smaller stop aperture and the other through a larger aperture which surrounds an opaque area similar to the smaller aperture, the spacing of the screen from the element and stop apertures, and the sizes of the apertures, being such that the larger aperture will produce exposures surrounding those of the smaller aperture. The apertures may be square or the larger one may be of quadrilateral shape, the outer periphery of each side being convexly curved, and they may be aligned at an angle of 45 degrees to the lines of the screen. The negative may be the usual wet plate, or, as shown in Fig. 1, a film 19 which is exposed to light through lens 11, stop 12, with aperture 13 and half-tone screen assembly indicated generally at 14, the latter having a screen mounted in a frame (Figs. 2, 3 and 4, not shown), and spaced apart from a transparent plate 15 so that the screen is at the correct distance from the film 19, being held there by camera screen bars 16, while the film 19 is pressed against plate 15 by a further plate 17. Fig. 5 shows a stop with smaller aperture 36 and a larger aperture which has opaque centre 38, and Fig. 7 shows how the larger aperture is used to produce exposed areas 42 around the exposure 41 of the smaller aperture.
Patent GB-900110-A (GB)
Title: Surface-active urethane derivatives
IPC: C07C271/06
Filed: 1959-05-25
Abstract: The invention comprises urethanes of the formula: R-O-CO-NR1-X-Y, wherein R represents a C8-12 alkyl radical, R1 represents a C8 alkyl radical, X represents a C1-3 alkylene radical and Y represents a carboxylic or sulphonic group in free or water-soluble salt form. The compounds are prepared by reacting a compound of the formula: R1-NH-X-Y with a chlorocarbonic acid ester of the formula R-O-CO-Cl. Salts with ammonia, alkali metals and alkaline earth metals are referred to.  The compounds have surface-active properties. Specification 31614/38 is referred to.
Patent GB-256593-A (GB)
Title: Improvements in and relating to firing sockets or cups for grenades
IPC: F41C27/06
Filed: 1926-07-15
Abstract: 256,593. Fabrique Nationale d'Armes de Guerre Soc. Anon. Aug. 8, 1925, [Convention date]. Barrels.-A grenade-projecting socket of the kind in which the socket is eccentrically mounted on the gun and communicates with the barrel bore so that the grenade is projected when a ball cartridge is fired in the barrel, is removably mounted by means of an axial projection on the base of the socket, a bracket member on the barrel formed with a recess into which the projection on the socket fits, and a lateral locking plug engaging a transverse groove in the docket projection. As shown, the socket 2 has, at the base, an axial projection 3 fitting into a recess in a bracket member 6 fixed to the barrel. A rotatable plug 8 is adapted to engage a transverse groove 7 in the projection 3 to lock the socket, and is formed with a side groove 9 which by turning the plug can be brought into position to release the socket. The gas passage 11, 11<1>, 10, 12 from the barrel to the socket passes through the plug so that when the plug is turned to the releasing position the passage is closed.
Patent GB-407913-A (GB)
Title: A method of making articles with patterns from moulded materials
IPC: B05D5/06
Filed: 1932-06-23
Abstract: Articles having patterns of various colours, e.g. buttons and combs are moulded from powdered or plastic material, e.g. horn by first filling the mould with the material of one colour, pressing therein an impression of the required pattern, filling the depression thus formed with differently coloured material, using a stencil, and then finally pressing the article in known manner.
Patent GB-1101752-A (GB)
Title: Improvements in or relating to gating systems
IPC: H03K17/60
Filed: 1965-04-28
Abstract: 1,101,752. Recording and playback. AMPEX CORPORATION. 28 April, 1965 [26 June, 1964], No. 17847/65. Heading G5R. [Also in Division H3]  A gating system, particularly for switching outputs from the playback heads of a rotating drum magnetic tape recorder, comprises a plurality of gates coupled between respective input channels and an output terminal and a bi-stable circuit for producing control signals for the gates in response to the presence of R.F. signals in the appropriate input channel. In Fig. 1B, modulated R.F. signals from diametrically opposed playback heads on a rotating drum are fed via terminal 10, an emitter follower T1 and a gate comprising diodes 40, 42 and transistor T2 to a common output terminal 18. Signals at the other heads are fed via terminal 11, emitter follower T3 and gate 86, 87, T4 to the common output terminal 18. When transistor T2 is off, diodes 40, 42 are biased on, so that signals at terminal 10 are transmitted to output 18. This path, however, is broken whenever T2 is made conductive by voltage El supplied to its base. Transistor T4 is arranged to be made conductive by signals E2 whenever T2 is non-conductive so as to block signals A2 from the output 18. Derivation of gate control signals.-In Fig. 1A, R.F. signals from one pair of playback heads are fed via terminal 10 and an amplifier T9 to voltage-doubling rectifiers 166, 168, the output of which is smoothed at 174. The D.C. output is passed by an emitter follower T10, a differentiating capacitor 188 and a pulse shaping transistor T11 to line D1 where a negativegoing pulse is provided in response to the onset of each R.F. signal at 10. A further negativegoing pulse is provided at D2 in response to the onset of each R.F. signal at 11. Each pulse D1 or D2 sets or resets a bi-stable multivibrator 420 signals E1, E2 from which respectively open or close the gates (Fig. 1B) comprising transistors T2, T4 in such a way that the appearance of a signal at 10 causes gate 40, 42 to pass that signal to the output 18 whilst the subsequent appearance of a signal at 11 results in gate 86, 87, T4 passing such signal to the output 18. In the rotary head tape recorder, playback signals  at 10 or 11 are thus steered by the appropriate  gate to output 18 without the need for any separate gate control signals synchronized with the rotating drum. The D.C. levels of signals from 10 and 11 are equalized by adjustment of variable resistor 22.
Patent GB-545844-A (GB)
Title: An apparatus for the estimation of moisture in granulated solids
IPC: G01N33/24
Filed: 1940-12-19
Abstract: 545,844. Testing moisture content of sand &c. MORGAN, J. S., and GAMMON, J. C. Dec. 19, 1940, No. 17874. Drawings to Specification. [Class 106 (ii)] To determine the moisture content of a granulated solid such as sand, free water is poured into the vessel up to a mark "A", then dry sand is added and settles to a mark " B ", the water subsequently rising to a level which represents " zero " moisture content for that kind of sand. The operation is now repeated with a sample of the similar sand to be tested, the water finally rising to a level above the " zero mark the excess being the amount of water present in the sand. The vessel may be provided with several scales corresponding to sands having grains of different sizes and scale to be used being determined by a test with dry sand.
Patent GB-611803-A (GB)
Title: Improvements in or relating to catadioptric lens systems
IPC: G02B17/08
Filed: 1946-06-14
Abstract: 611,803. Optical systems. KODAK, Ltd. June 14, 1946, No. 17917. Convention date, June 19, 1945. [Class 97 (i)] An objective for use at finite conjugates, particularly with a cathode-ray tube, comprises a concave spherical mirror, at least one meniscus correcting element substantially concentric with the mirror and a positive meniscus field lens the concave surface of which substantially coincides with the short conjugate surface, whereby the long conjugate surface is substantially plane. As shown, the field lens 21 forms one end of the cathode-ray tube, the inner surface of the lens bearing the fluorescent material. The outer surface of the lens 21 is more strongly curved than the inner, which is aspherical, the curvature decreasing towards the edges. 24 is the plane surface on which the image is formed, the diaphragm 28 being located at the centre of curvature of the mirror. Data are given for one example of the system shown and for one in which the meniscus correcting element 22 is between the diaphragm 28 and surface 24 and is concave to the mirror. A Schmidt plate may be used with the system. Specification 610,798 is referred to.
Patent GB-786800-A (GB)
Title: Improvements in methods and apparatus for the manufacture of anhydrous uranium fluoride and the like
Inventor: ROUZET MICHEL
IPC: C01G43/06
Filed: 1955-06-22
Abstract: <PICT:0786800/III/1> Pulverulent uranium dioxide is countercurrently contacted at 5-600 DEG  C. with gaseous hydrofluoric acid, the solid material being allowed to fall over mechanical obstructions which are shaken so as to permit an easy flow of said solid material whilst in contact with said gas.  The invention also includes an apparatus for treating uranium dioxide and other powders which swell when treated with gases, comprising an oven having a vertical chamber, a plurality of baffles disposed in said chamber above one another and spaced apart from one another and a wall of the chamber to permit the passage of the powder from one baffle to another through said chamber, means for shaking said baffles and means for feeding the powder at the top of said chamber and the gaseous reagent at the bottom of said chamber.  In the preferred embodiment (see Fig. 1) uranium dioxide is fed from hopper 12 into a chamber 1 surrounded by an electrical heating coil 3 within jacket 2 and falls on to and through baffles 4 and 5 vibrated with a vibrator 11 whilst a current of hydrogen fluoride is passed upwardly from the tube 14.  Remaining hydrofluoric acid and water vapour pass out through pipe 18, and the product collects in chamber 15.  Preferred materials of construction for the parts of the apparatus exposed to hydrofluoric acid are magnesium, graphite, calcium fluoride, copper, nickel and some special alloys of nickel; the baffles 4 and 5 may consist of an upper face of a substance such as fluorite not detrimental to the uranium tetrafluoride, supported on a mechanically strong material such as copper which does not come into contact with solids.  A gas-tight joint 19 made of tetrofluorethylene may be provided.
Patent GB-897759-A (GB)
Title: Improvements in and relating to typesetting machines
IPC: B41B7/04
Filed: 1960-05-23
Abstract: 897,759. Type-making &c. machines. SCHNEIDER, J. May 23, 1960, No. 18162/60. Addition to 838,633. Class 100(3) . Justifying type. In a machine of the general construction disclosed in the parent Specification, the chain drive B is driven by a reversible electric motor M2, the reversal being controlled by a switch b actuated by an electromagnet M1 energized when a switch a is closed by the space key. The switch b is also actuated when a composed line engages the stop E on the lever 17. The motor is stopped when a switch c is opened when the gate W is opened, and when a switch d is opened when a temporary space casting 11 enters the cut-out in the plate U. The end-of-line key closes a switch e to energize a magnet M<SP>3</SP> and release the slide FS. Operation of the space casting key closes a switch i, which energizes a magnet M<SP>10</SP> to stop the matrix wheel in the space position, and energizes a relay M<SP>1</SP>, which then energizes magnets M<SP>5</SP>, M<SP>6</SP>, M<SP>7</SP>, M<SP>9</SP>. The magnet M<SP>5</SP> actuates the ejector slide C, the magnet M<SP>6</SP> actuates the plates S, U, and the magnet M<SP>7</SP> operates the space counter register. A switch g is opened to de-energize the magnet M<SP>7</SP> when the slide FS is nearly at the end of its stroke, but can be short-circuited by closing a switch h when very short words or symbols requiring spaces between them occur at the end of the line. The magnet M<SP>9</SP> controls the mould adjustment. During the casting of the first line, when permanent space casings are not required, a space key switch f is used to energize a relay M<SP>4</SP>. The relay M<SP>4</SP> energizes the magnets M<SP>5</SP>, M<SP>6</SP>, M<SP>7</SP>, but not the magnet M<SP>9</SP>. '
Patent GB-1508994-A (GB)
Title: Building members
IPC: E06B9/17
Filed: 1974-04-25
Abstract: 1508994 Blinds and shutters, lintels CATNIC COMPONENTS Ltd 25 April 1975 [25 April 1974] 18185/74 Headings E1J and E1K A lintel has walls 2, 3, 4 forming a channel shape and walls 9 adjacent the ends of the lintel. Vertical plates 9 are secured to the top wall 3 of the lintel and to plates 8, and support a spindle (14) of a roller blind or shutter (10). A pulley (19) at one end of the blind takes an operating cord (20) which passes through a guide (21) and between rollers (23), The roller is reversible. The edges of the shutter run in guides 28 set into the sides of the aperture. The central portion of the lintel is partly closed by a plate (24 Fig. 5) with a filler (25), a removable panel 31 being secured to window or door frame (30).
Patent GB-530650-A (GB)
Title: Improvements in and relating to the production of coated and impregnated textile andsimilar materials
IPC: D06M13/248
Filed: 1939-06-22
Abstract: 530,650. Single coatings; fabric bases. HABGOOD, B. J., JONES, M., SMITH, W. F., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 22, 1939, No. 18248. [Class 140] [Also in Groups IV and V] Textile or similar sheet material coated and/or impregnated with polythene compositions are prepared by calendering on the material a heated plastic mixture of polythene and a minor proportion of natural rubber or a synthetic rubber-like material at least sufficient to yield a mixture which remains plastic without melting over a range of temperature convenient for calendering the mixture. Synthetic rubber-like materials are defined as products obtained by the polymerization of butadiene-1.3, 2-chlorobutadiene-1.3 or their homologues either alone or along with other unsaturated substances, e.g. styrene and acrylonitrile, thioplastics obtained by the treatment of organic chloro compounds with alkali or alkaline earth metal polysulphides, and poly-isobutylene. The ingredients of the composition may be mixed in a rubber roller mill, and the compositions may be applied to cotton, woollen or silk fabrics, paper or leather. After passing through one nip of the calender the coated materials may be passed over heated rollers or hung in heated chambers. The coated material may be used as insulating tape, as a compound of electrical condensers, in the fabrication of leathercloths, as a doubling material for fabrics and in the construction of chemical plant. In examples fabrics are coated by calendering thereon mixtures of polythene with (1) and (2) a condensation product made by heating glycerol α-γ dichlorhydrin with a polysulphide as described in Specification 453,850, [Group IV], and natural rubber or poly-2 chlorobutadiene 1.3 (3) natural rubber, (4) poly-2-chlorobutadiene 1.3 or (5) and (6) polyisobutylene. Specifications 471,590, [Group IV], 491,804 and 514,687, [Group IV], also are referred to.
Patent GB-146327-A (GB)
Title: Supporting means for the gun carriage frame of railway guns on a turn-table
IPC: F41A23/40
Filed: 1920-07-02
Abstract: 146,327. Krupp Akt.-Ges., F. June 12, 1918, [Convention date]. Turntables.-Consists in providing a railway turntable with beams arranged transversely to its line of rails for supporting a railway gun carriage in the firing position independently of its bogies. The gun carriage side cheeks D are shown supported on bogies D<1>, D<2> running on rails C<1>. The turntable A, shown in the receiving position in Figs. 1 and 2 and in the firing position in Fig. 4, is mounted on a ball race B and is formed of girders a<2>, a<3>, crossing one another at rightangles. The rails C on the turntable, which are normally in line with the rails C<1>, Fig. 1, are arranged with the usual gauge clearance between the girders a<2> to permit the carriage to be brought over the turntable. The table is then turned through 90 degrees to the position shown in Fig. 4 and by means of screw jacks the frame D is first raised to allow the bogies to be removed and then lowered so that the carriage cheeks D rest directly on the girders a<3>. The gun carriage is then in the firing position, the breech of the gun being accommodated at high angles of elevation in a gap a<4> in the turntable.
Patent GB-423653-A (GB)
Title: Improvements in metal carriages for mule machines
IPC: D01H3/04
Filed: 1934-06-20
Abstract: 423,653. Spinning-mules. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES, Mulhouse, Haut-Rhin, and TAINE, R., 38, Rue St. Henri, La Madeleine-lez-Lille, Nord, both in France. June 20, 1934, No. 18278. Convention date, July 29, 1933. [Class 120 (ii)] A metal carriage for a mule comprises a sheet-metal box, the base plate of which is put under tension, to enable thinner plates to be used and to obtain greater rigidity. The base plate may be put under tension transversely as well as longitudinally. The carriage comprises a longitudinal box of sheet metal 3, 4, Fig. 1, with longitudinal tubes 11 and brackets 1, 2 which receive an adjustable stretching rod a, whereby the base 14 is tensioned. The stretching means may carry other fittings, e.g. tinroller bearings, and may be outside the box, Fig. 4, and carry wheel supporting brackets 8, expansion being effected by the screw 7. Fig. 6 shows how a joint may be arranged in the longitudinal rods 11 ; one rod carries a plug 20, and the other rod bears thereon, so allowing for slight mis-alignment of the rods. In a modification, Fig. 8, the base 14 is formed separately from the sides of the carriage ; the base is put under tension by triangulated extending tubular rods 21-24, the rods 23 and 24 bearing on blocks 25 carried on longitudinal angle irons 26, Fig. 9, arranged so that the block 25 can slide if necessary.
Patent GB-888746-A (GB)
Title: Improvements in liquefied gas storage tanks
IPC: B63B25/16
Filed: 1959-05-29
Abstract: 888,746. Storing liquefied gases. CALIFORNIA RESEARCH CORPORATION. May 29, 1959 [May 23, 1958], No. 18395/59. Class 8(2). A flat bottomed heat insulated liquefied gas e.g., methane storage tank operating at substantially atmospheric pressure is supported by a plurality of substantially vertical plates 28, Fig. 5, each lying in a plane normal to a line extending from the centre of the tank bottom 10 to its periphery and being secured to a vehicle body e.g., a ship's framing 14, Fig. 6. Further support is afforded by a skirt 27 and the top and bottom of each plate 28 engage in saddles 29, 30, Fig. 15, and are rocked therein by lateral thermal expansion and contraction and by movement caused by rolling of the ship. In a modification the plates 13, Fig. 8, which are of flexible construction are bolted to the framing 14 and are keyed to a wooden block 16 secured to the tank bottom 10. Conventional insulation 15 surrounds the tank 11 and the bottom 10 is internally reinforced by bars 24, 25. Pipe connections are made below a sump well 12.
Patent GB-252569-A (GB)
Title: Improvements in or relating to typecasting machines
IPC: B41B5/06
Filed: 1925-07-20
Abstract: 252,569. Smyth, F. J., and Lanston Monotype Corporation, Ltd. July 20, 1925. Galleys and galley mechanism for type-casting machines.-Machines for casting single types 'in a series of a kind or sort are provided with means for delivering the types in column formation on to a table, or into a galley, comprising a line transferrer or pusher in front of which the types are assembled in a line, a trip device operated by a line gauge, and an interponent moved by the trip device into the path of a constantly operating member for actuating the line transferrer. The types x are assembled in a line channel formed by walls E, E<1>, the wall E<1> being adjustable. The line gauge is formed in two parts C, C', so that the part C can be used alone for the larger sizes of type. The part C is formed with a projection C<2> connected by a cord C<3>, passing over guide pulleys C', C<5>, to a weight for returning the line gauge to initial position. The line transferrer A is adjustably secured to a bar A' having an extension A<6> slotted to accommodate a lever G rocked at each revolution of the machine from a cam, through connections adjustable to vary the throw of the lever G for different pointwise dimensions of type. An interponent D, mounted in guides on the bar A<1> for movement into and out of the path of the lever G, is connected to a trip lever B pivoted to a bracket B<1> on the bar A', and extending into the path of the line gauge C. The bracket B<r> is provided with a micrometer screw adjustment b<2>. The lines of tppe are held on the table or galley F between side walls F<1>, F<2>, the wall F<2> being adjustable in a guide F<5>, and the wall F<1> having a micrometer screw adjustment F<6>. The last deliverad line is advanced past a spring-actuated catch or projection f on the wall F<2>.