baber/WOPTO huggingface dataset:
Patent GB-731026-A (GB)
Title: Improvements in the production of oximes
Filed: 1953-06-16
Abstract: Oximes are produced by a process which comprises introducing aqueous solutions of about equivalent amounts of secondary aliphatic or cycloaliphatic aci-nitro compounds or their water-soluble salts and water-soluble salts of hyposulphurous acid simultaneously into excess aqueous acid.  Nitro compounds mentioned include nitro - hydrocarbons, e.g. 2 - nitro - propane, nitrocyclohexane, nitrocyclo - pentane, methylated nitrocyclohexanes, the secondary nitro-butanes and-hexanes which are preferably used in the form of their alkali metal, alkaline earth metal or ammonium salts.  Alkali metal and ammonium hyposulphites are the preferred hyposulphites.  Aqueous solutions of salts of the nitro-compounds and of hyposulphites, either after previous mixing or separately but simultaneously, may be stirred into dilute acids.  Indifferent organic solvents or dispersing agents may also be employed.  In a continuous process solutions of the reactants are allowed to flow together with excess acid, e.g. in a mixing tube.  The reaction usually takes place at room temperature though cooling or elevated temperature may be employed if necessary.  An excess of acid may be provided initially or the reaction mixture may be maintained acid by periodic or continuous addition of acid.  In examples: cyclohexanone oxime is obtained by adding an aqueous solution of sodium hyposulphite to a solution of nitrocyclohexane in aqueous caustic soda and allowing the mixture to flow into 2N sulphuric acid (1) and (3); and 1-methyl-3-nitrocyclohexanone oxime is obtained by adding aqueous sodium hyposulphite to a solution of 1-methyl-3-nitrocyclohexane dissolved in aqueous caustic soda, adding the mixture to 2N sulphuric acid, neutralizing the reacted mixture and extracting the desired product with ether (2).
Patent GB-451145-A (GB)
Title: Improvements in or relating to beacons for air-craft and the like
IPC: B64F1/20
Filed: 1935-06-07
Abstract: 451,145. Rotary beacon lights &c. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and WALDRAM, J. M., c/o General Electric Co., Ltd., Wembley, Middlesex. June 7, 1935, No. 16577. [Class 75 (iv)] In an aircraft or like beacon projecting a rotating beam which is subject to interruptions which are varied cyclically so that observers in different directions see different series of flashes, an image of a shadow-bar, i.e., an opaque member, or of a slit, is formed in the optical system projecting the light beam and rotates relatively to that beam with an angular velocity substantially equal ,and opposite to the angular velocity with which the beam rotates relative to observers. When the angle over which the beam is to be obscured is less than the angle of the beam, the image of the shadow-bar rotates throughout the time it interrupts the beam. When, however, the angle of obscuration is greater than the angle of the beam, the image of the shadowbar may subtend at the point of divergence of the beam an angle equal to the angle of obscuration, and rotate throughout the time it interrupts the beam, or the image may subtend at the divergence point an angle equal to the angle of the beam, and be carried with the beam during part of the period of interruption. In the form shown, the optical system comprises a main reflector 10 which is parabolic in vertical section and elliptical in horizontal section, and a spherical mirror 12. A real image of the luminous body 11 is formed in horizontal planes at 13. Two pairs of shadow-bars 18, 18<1> and 19, 191 rotate about 11. For small angles of interruption, e.g. the angle 20, 13, 21, rotation of one pair of shadow-bars only is necessary. When the angle of interruption is larger than the angle of the beam, e.g. when it is the angle 20, 13, 22, one pair 18, 18<1> rotate alone in the direction shown until their rear edges are on the line 14, 11, 17. The second pair then rotate with the first pair until the two pairs entirely interrupt the beam. They then rotate with the beam until the leading edge of the beam, if uninterrupted, would reach the direction parallel to the line 22, and resume rotation relative to the beam until the members of each pair have interchanged places. An example of a cycle of interrupted rotations is given. Specifications 400,900, 401,104, and 433,715, are referred to.
Patent GB-1465957-A (GB)
Title: Seat for a vehicle
IPC: B60N2/42
Filed: 1974-04-16
Abstract: 1465957 Adjustable vehicle seats T SAITO 16 April 1974 [20 April 1973 23 April 1973] 16615/74 Heading B7B [Also in Division A4] A vehicle seat backrest is adjustably secured to the ceiling of the vehicle. In the first embodiment, the backrest is integral with the seat rest and the upper end of the backrest is provided with a spring biased pin 17 engaging one of a number of apertures 14 in a channel member 13 secured to the ceiling struts 12. Simultaneous release of the pin 17 with release of a locking lever 22 of a seat slide 21 secured to the vehicle floor being effected by a cable 19 connecting the pin and lever. In the second embodiment in which the backrest is pivotally connected to the seat rest, an hydraulic or pneumatic piston and cylinder unit 110 connects the ceiling and the backrest, the unit having two pressure chambers defined by the piston and communicating with each other through a conduit having a valve. The seat may be fixed to the floor. Alternatively the seat is mounted on a slide and the release lever of the slide is connected to the valve. The unit may be actuated in dependently of the slide to adjust the rake of the backrest. The unit may be slidably mounted on the ceiling. The piston and cylinder unit may be replaced by a telescopic unit comprising a rod slidably mounted within a tubular shaft and locked against sliding by an externally tapered, locking collet mounted in an internally tapered locking sleeve and provided with teeth which engage the rod.
Patent GB-785594-A (GB)
Title: Process for the manufacture of composite sheets or shaped members having covering layers impregnated with synthetic resin
IPC: B32B27/00
Filed: 1953-05-07
Abstract: 785,594. Laminates. RITTER, E. J., [trading as GES. FUR WERKSTOFF-FORMUNG E. J. RITTER KOMM.-GES.]. May 7, 1953 [Oct. 11, 1952], No. 16813/57. Divided out of 785,592. Class 140. In composite sheets or shaped members in which a core layer of fibres or shavings or both and a synthetic resin binding agent is united with covering layers impregnated with synthetic resin by hot-pressing to consolidate the core and liquefy and in appropriate cases cure the synthetic resin, flow of synthetic resin from the covering layers to the core during the pressing operation is prevented or reduced by the interposition between the covering and core layers of an intermediate layer which is impregnated with an excess of synthetic resin or which is permeable to synthetic resin but reduces the flow of resin. The intermediate, flow-reducing layer may be parchment, metal foil perforated with small apertures, or a layer of paper, fabric, e.g. of glass or asbestos fibres, thin wood coated or treated, e.g. with starch, so as to reduce its permeability to synthetic resin. In order to prevent or reduce flow of synthetic resin from the covering layers laterally towards the edges of the laminate, the covering layers may extend beyond the core, and bars or laths of wood may be placed against the lateral edges of the core layer and between marginal portions of the upper and lower covering layers, which become clamped during the pressing operation between the press-plates and the bars or laths. The bars or laths may be resin-coated and become bonded to the core. The synthetic resin may be thermoplastic or hardenable, e.g. phenol-, urea-, or melaminealdehyde. The covering layer may comprise several superposed layers of which the outermost is impregnated with melamine-aldehyde resin while less expensive resins are employed for the inner layers and core, e.g. urea-aldehyde resin for the inner layer and a phenol-, or cresolaldehyde resin for the core and, if desired, for the innermost layer of a composite covering layer.
Patent GB-316932-A (GB)
Title: Improvements in or relating to the vulcanisation of rubber
IPC: C08K5/00
Filed: 1929-05-31
Abstract: 316,932. Rubber Service Laboratories Co., (Assignees of Scott, W.). Aug. 6, 1928, [Convention date]. Aryl thioethers of aryl thiazoles are formed by condensing 2 : 4-dinitrochlorbenzene with mercaptoaryl-thiazoles or their alkaline salts and like derivatives.
Patent GB-643126-A (GB)
Title: Improvements in or relating to tipping vehicles or trucks
IPC: B60P1/28
Filed: 1948-06-23
Abstract: 643,126. Tipping-vehicles. FORSS, L. E. June 23, 1948, No. 16885. [Classes 103(iv) and 108(i)] The body of a tip wagon is carried by a hollow central longitudinal shaft 1 supported by the wheel frames, the shaft carrying triangular members 4, Fig. 5, which operate levers 5 to release the side walls 2 during tipping. The shaft also carries springs.. 10, Fig. 6, for returning the body to the horizontal position upon completion of unloading. Operation of the body release bolts 13 is effected by links 14 connected to the driver's control member 15, which passes through the shaft 1. In the tipped position one of the bolts enters a recess 17 at the end of an arcuate rubbing strip 16. The lower side edges of the truck body carry inclined members 9 which engage the ground when the body is tipped and enable the contents to be discharged along a line when the truck moves forward.
Patent GB-1536997-A (GB)
Title: Scene simulation
IPC: H04N5/272
Filed: 1977-04-22
Abstract: 1536997 Television systems MALTERIEL TELEPHONIQUE 22 April 1977 [23 April 1976] 16927/77 Heading H4F An arrangement for simulating an animated scene, e.g. for use in weapon firing or ship control training, includes means for mixing a video signal representing an object with a video signal representing a portion of a background scene, the composite signal being displayed to provide a composite image which is optically inserted in a corresponding portion of a second and similar background scene. Both scenes are movable to provide movement of the object relative to the background. The disclosed embodiment, Fig. 1, uses two photographs PH1, PH2 of a background scene, the photographs being movable E3 identically in their common plane. A video signal representing a portion of one photograph PHI is generated CA1 and passed to a processor DT which also receives a video signal representing an object M. The latter signal may be generated by a variable magnification television camera CA2, or by telecine or magnetic recording equipment. The video signals are mixed DT and the resultant composite signal displayed MO. The composite image is projected via a semi-transparent mirror LSR on to a screen E. The screen E overlies precisely the same portion of the other photograph PH2 as is viewed by CA1. The screen E and photograph PH2 are viewed via a fixed sight L. When the photographs are moved the object appears to move within the background. To ensure that it appears to the observer that it is the object that moves, rather than the background, an optical system SO lies between the sight L and the screen E, the system including elements which are moved El in correspondence with the movement of the photographs.
Patent GB-836455-A (GB)
Title: Improvements relating to spanners or wrenches
Inventor: WELTON-COOK ROBERT
IPC: B25B13/14
Filed: 1957-05-29
Abstract: 836,455. Wrenches. GARRINGTONS Ltd. April 21, 1958 [May 29, 1957], No. 16981/57. Class 61. In a wrench having a fixed jaw 10 rigidly connected to or formed integrally with the handle 11, a movable jaw slidably mounted on the handle and formed with a series of teeth which are engaged by a worm 15 rotatably mounted in an aperture 16 in the handle, the worm is rotatably mounted on the intermediate portion of a pin 21 which is driven into a hole 20 in the handle and extends across the aperture 16 and into a hole 19 on the opposite side, the pin being a driving fit in the hole 20 and having an enlarged head disposed outside the body.
Patent GB-788868-A (GB)
Title: New heterocyclic derivatives and processes for their preparation
Inventor: JACOB ROBERT MICHEL
IPC: C07D403/06
Filed: 1955-06-13
Abstract: The invention comprises compounds of the general formula: <FORM:0788868/IV (b)/1> (wherein A represents a saturated divalent aliphatic group which may carry one or more phenyl substituents, B a straight or branched saturated divalent aliphatic chain, and R an alkyl group of 1-4 carbon atoms) and their acid addition and quaternary ammonium salts, and the preparation of the free bases by reacting an imide of the general formula: <FORM:0788868/IV (b)/2> with an ester of the general formula: <FORM:0788868/IV (b)/3> (wherein Z represents the acid residue of a reactive ester, e.g. a halogen atom or a sulphonic or sulphuric grouping).  The products may be converted into acid addition salts by treatment with mineral or organic acids, or into quaternary ammonium salts by treatment with alkyl esters.  Alternatively the quarternary ammonium salts may be prepared directly by replacing compound (III) by a corresponding quaternary ammonium salt or compound (II) by a corresponding compound in which the nitrogen atom is tertiary.  The products are useful in human or veterinary medicine as ganglionblocking agents, hypotensors, spasmolytics, and potentiators of an esthetics and analgesics.  In examples: (1) 3 : 3-diphenylpyrrolidine-2 : 5-dione is refluxed with 1-(g -chloropropyl)-4-methylpiperazine in dimethylformamide in the presence of potassium ethoxide to produce 1-(g  - 41 - methyl - 11 - piperazinglypropyl)-3 : 3-diphenylpyrrolidine-2 : 5-dione, the hydrochloride of which is described; (2) the product of (1) is refluxed with methyl iodide in acetone to form its dimethiodide.  The Provisional Specification refers broadly to compounds of the general formula: <FORM:0788868/IV (b)/4> (wherein A represents a saturated or unsaturated aliphatic or an aromatic divalent hydrocarbon group, such as vinylene, alkylene or o-phenylene, which may be substituted by one or more halogen atoms or lower (1-4 C) alkyl or aryl groups, B is as defined above, X1 and X2 each represent a straight or branched saturated divalent aliphatic chain of not more than 4 carbon atoms and together contain not less than 3 carbon atoms, and R represents hydrogen or a lower alkyl or acyl group), and describes the following further methods of preparation: (i) reaction of an imide of the general formula: <FORM:0788868/IV (b)/5> with a compound of the general formula: <FORM:0788868/IV (b)/6> (ii) (when R is lower alkyl or acyl) alkylation or acylation of the corresponding compounds in which R=H; (iii) reaction of a diacid of the general formula; <FORM:0788868/IV (b)/7> or a derivative (e.g. halide, ester or anhydride) thereof, with a compound of the general formula: <FORM:0788868/IV (b)/8> (iv) (when B is -CH2-) reaction of compound (II) with compound (C) in the presence of formaldehyde.
Patent GB-350710-A (GB)
Title: Improvements in or relating to gas-meter control means
IPC: G01F3/22
Filed: 1930-06-02
Abstract: 350,710. Levers. PINTSCH, AKT.- GES., J., 71, Andreasstrasse, Berlin. June 2, 1930, No. 17045. Addition to 253,109, [Class 54, Gas distribution]. [Class 80 (iii).] A resilient lever for operating the valves of a gas meter consists of a main or primary spring 1 having one or more auxiliary springs 2, 3 secured on both its faces.
Patent GB-193772-A (GB)
Title: Improvements relating to corsets
IPC: A41C1/06
Filed: 1922-06-20
Abstract: 193,772. Rebsamen, O. June 20, 1922. Corsets; brassiÞres; stiffeners. - The breast portion is in two framed parts 1, 2 and is detachably connected by adjustable straps 7, passing under the arms of the wearer, to buttons 9 on the back portions 3, 4 of the corset. Shoulder straps 13 also connect the breast portions to adjustable straps 14 detachably connected to the back portions. Adjustable straps 7<a>, 7<b> connect the breast portion to the front and side respectively of the lower portion of the corset. Tapes 8, which may be provided with stiffeners, maintain the straps 7 in spaced relationship. The detachability of the parts allows for washing or other purposes. Stiffeners 16 are housed at both ends in loops 17, between which they are covered by strips of fabric 18 and a flap 19. To obviate the necessity for shoulder straps the breast and rear pcrtion of the corset are provided with Stiffeners 37, Fig. 5, entering pockets 35 in the lower part of the corset and pockets 38 in the upper back parts, which are separate from the other part of the corset. Other removable stiffeners 41 are provided in pocket 40, and pockets 43 support stiffeners 42 which, at their upper end, are arranged in pockets 44, Fig. 6. The pockets 44 are provided with slots at regular intervals and the stiffener can be arranged to pass through the loops 47 of the connecting-straps 33. The loops may engage notches 48 in the stiffeners.
Patent GB-107753-A (GB)
Title: Improvements in or relating to Safety Razors.
Inventor: PLETSCHER OTTO
IPC: B26B21/10
Filed: 1916-11-30
Abstract: 107,753. Pletscher, O. July 7, 1916, [Convention date]. Addition to 106,083. Razors, safety. The members 1, 2 of the razor described in the parent Specification are made independent of each other, and are connected at the ends away from the grip-plates by means which consist of interengaging spirallyshaped hooks 17, 18. The parts may easily be opened out. as shown, for cleaning and separated, if necessary, while, on closing them together, a clamping action takes place. The Specification describes the other parts of the razor as in the parent Specification.
Patent GB-1078255-A (GB)
Title: A method of and means for detecting yarn breakage in yarn making and yarn handling machines
Inventor: SMITH RONALD RIGBY
IPC: D03D51/28
Filed: 1965-04-23
Abstract: A stop motion for a warp machine comprises a slotted elongated box (7), Figs 2 and 4, not shown, placed beneath the warp and adapted to direct a stream of air through the slot (16) upwardly to impinge on the warp and deflect any loosely tensioned or broken thread into the path of a collinated infra-red light beam (10) whereby a light sensitive detector is responsive to the interference of the beam to cause a warning device to be actuated or the machine to be stopped. The slot may be increased or decreased in width by adjusting the position of the sides of the box.
Patent GB-167746-A (GB)
Title: Means for synchronizing the moving parts of direct-acting fluid-pressure motors and pumps
IPC: F02B71/00
Filed: 1921-06-23
Abstract: 167,746. Pelterie, R. Esnault-. Aug. 10, 1920, [Convention date]. Engines with reciprocating cylinders. - In a direct-acting, fluid-pressure motor wherein a moveable piston works in a moveable cylinder which slides in a fixed cylinder, the movements of the parts are synchronized to effect balance and restore the centre of gravity of the moving masses to its mean position. The racks a, b, Fig. 1, are connected respectively to the moving piston and cylinder by fingers a<1>, b', and engage pinions c, c<1> mounted on pins d<1> on spring-mounted frames d. Lugs f in the frames engage helical springs e held between shoulders on stationary parts g. A motor provided with the above apparatus may be started as described in Specification 131,901, [Class 7 (v), Internal-combustion engines, Starting &c.], or with the mechanism shown. One of the racks a is reciprocated by a hand-operated rod j provided with a spring-mounted hook i which engages a notch h therein. A spring- mounted transverse member o is provided with a projection n which slides in a recess in the rod j which it tends to raise. The member o and rod j arc held down by a spring-controlled hook p which, on the interposition of a hand-operated blade t when disconnection is desired, is disengaged by a screw s carried by a lug q on the rod j. In a modification of the apparatus shown in Fig. 6, the geared racks and springs are replaced by liquid pressure chambers in which work plungers a<3>, a<4>, b<3>, b<4> connected respectively to the piston and cylinder to be controlled. The elasticity of the liquid serves the place of the springs. To avoid relative displacement of the plungers owing to leakage, the plungers and chambers are recessed and provided with ports and passages as shown, and under normal circumstances pressure liquid is supplied through passages j<3>, j<4> and escapes by passages h<3>, h', but when displacement takes place, passes by passages c<3>, d<3>, g<3>, n<3>, or c<4>, d<4>, g<4>, n<4> to the chamber v<3> or v<4> respectively to make good the loss. A modification is described wherein one plunger is hollow and surrounds the other. The fluid is pumped by a diamond-shaped member a<6> carried by the plunger b<3>, b<4> which through bell-cranks d<6>, link f<6> and spring h<6> actuates a plunger g<6>. Apparatus similar to that shown in Fig. 1 is used for starting. A frame carrying racks which engage a fixed pinion is secured to the casting. The racks carry spring fingers which engage the plungers during starting. The upper rack is connected to the starting-handle. On inserting a hand-operated stop during cranking, the frame is sprung aside, the plungers disengaged. The apparatus may be applied to the motors described in Specifications 118,091 and 124,418, [both in Class 7 (ii), Internal-combustion engines, Arrangement &c. of], when the apparatus is applied to cylinders and piston of different masses, the ratio of the gearing, Fig. 1, or the area of the plungers, Fig. 6, is proportionately modified.
Patent GB-1117269-A (GB)
Title: Improvements in or relating to magnetic memory devices
IPC: G11C7/02
Filed: 1967-04-14
Abstract: 1,117,269. Magnetic storage apparatus. TOKO KABUSHIKI KAISHA. 14 April, 1967 [20 April, 1966], No. 17305/67. Heading H3B. A magnetic store comprises spaced parallel conductors A1 ... A5, individually coated with thin magnetic film, each conductor fitting into a respective trough formed in a corrugated film 2 bearing a plurality of printed word lines 1, the conductors being orthogonal to the word lines and occupying troughs on both sides of the corrugated film. The arrangement thus corresponds to a woven magnetic store. The conductors and printed word lines are insulated from each other, and are positioned between earth plates 4, each abutting a cover-plate 5.
Patent GB-660727-A (GB)
Title: Improvements in and relating to ignition systems for internal combustion engines
IPC: F02P15/12
Filed: 1949-06-30
Abstract: 660,727. High tension change-over switches. BRITISH THOMSON-HOUSTON CO., Ltd., and GRIFFITH, L. April 14, 1950. [June 30, 1949]. No. 17329/49. Class 38 (v). A high tension change-over switch for changing over from the starting ignition system to the main ignition system of in I.C. engine is enclosed in the metal casing 16 that contains the distributer 14 that serves to prevent radio interference. In the form shown a cap 7 is rotated by a Bowden wire device against a return spring 10 and serves to move a rotor 3 so that a spring-pressed brush 4b is brought from engagement with one terminal 2a to another terminal 2a arranged at 120 degrees or 180 degrees thereby connecting the selected ignition system to a central brush 4a which engages the central distributer terminal 1a. In a modification, instead of the rod 4 that carries the brush 4a being fixed to the rotor 3, it is stationary and forms a bearing for the rotor. The moulding 2 enclosing this modified change-over switch may be filled with oil.