baber/WOPTO huggingface dataset:
Patent GB-120423-A (GB)
Title: Improvements in and relating to Electric Switches.
Inventor: HOLT ALFRED
IPC: H01H9/16
Filed: 1917-11-06
Abstract: 120,423. Holt, A. Nov. 6, 1917. Indicators.-In an electric switch of tumbler type particularly for use on aircraft, the tumbler arm 3 is connected by a link 4 or equivalent member with a sliding block 5 carrying a plate adapted to exhibit " on," " off," or equivalent words through an opening 6 in the cover. The indications may have distinctive colours, and the words may be in luminous paint for night use.
Patent GB-590273-A (GB)
Title: Improvements in or relating to automatically loaded recoil-less guns
IPC: F41A1/08
Filed: 1943-10-04
Abstract: 590,273. Loading appliances for ordnance. BURNEY, SIR C. D. Oct. 4, 1943, No. 16262. [Classes 92 (i) and 92 (ii)] Relates to non-recoil guns having rearwardly discharging gas nozzles as described in Specification 586,749, and adapted for automatic loading through the space between the nozzles as described in Specifications 590,272 and 594,577. According to the present invention, ammunition of the fixed type is loaded through the space between a pair of the nozzles 3 by an ammunition carrier 26 rotatable on one of the nozzles and is transferred to the breech by a moving breech block 10 reciprocated by gas or recoil action aided by a return spring. In the form shown, a forked gas piston rod 11 has pin and groove connection with rearwardly pivoted arms 15 which operate through depending rods 16, Fig. 9, pawls 23 and ratchet teeth 64 to rotate the carrier step by step. One pawl acts for a half-step during rearward movement of the rod 11 and the other during forward movement thereof. The breech screw 10, Fig. 5, of the interrupted thread type is formed in two spring- connected parts and is attached to the rod 11. After ramming, the spring play is taken up to rotate the screw for locking and to effect firing by a pin 50. To prevent double loading a spring pin 67, Fig. 11, engages the cartridge case, the pin being connected to a detent 68 which engages a notch 69 in the rod 11 to prevent loading movement until after ejection of the case by the lever 65 shown in Fig. 10. Catches released by a press-button 25 permit removal of the container for recharging or the container may be of sprocket form fed by an ammunition belt of chain form.
Patent GB-374267-A (GB)
Title: A new or improved vent peg or venting device for barrels or other receptacles from which liquids are drawn off
IPC: B65D51/16
Filed: 1931-06-04
Abstract: 374,267. Venting devices. BROWN, A. T., Prestwood Garage, Great Missenden, Buckinghamshire. June 4, 1931, No. 16321. [Class 21.] A venting device for beer barrels &c. consists of a stem 2 with a lateral extension 3 and a bore 5, 6, the exit being closed by a screwed thimble 8 containing a spring or gravity controlled ball valve 11 which admits air on reduction of pressure. Slots 12 ensure that the ball shall not completely obturate the channel 6. Reference has been directed by the Comptroller to Specifications 12700/03 and 314,407, [both in Class 21, Casks &c.].
Patent GB-779507-A (GB)
Title: 4-acyl-3:5-dioxopyrazolidines and methods for the production thereof
Filed: 1955-06-07
Abstract: The invention comprises 1:2-diphenyl-3:5-dioxopyrazolidines substituted in the 4-position by an aliphatic acyl group with a straight or branched chain of up to 6 carbon atoms, and the preparation thereof by reacting 1:2-diphenyl - 3:5-dioxopyrazolidine with the appropriate acid halide, preferably in the presence of a condensing agent, e.g. an aluminium halide.  The products have antipyretic and analgesic activity.  In examples, 1:2-diphenyl-3:5-dioxopyrazolidine is heated with (1) acetyl chloride in pyridine; (2) and (3) butyryl or isobutyryl chloride in carbon disulphide in the presence of aluminium chloride.
Patent GB-1106146-A (GB)
Title: Improvements in or relating to optical display devices
Inventor: JONES ERIC EDWARD
IPC: G03B21/00
Filed: 1964-04-21
Abstract: 1,106,146. Optical projection apparatus. PLESSEY-UK. Ltd. July 21, 1965 April 21, 1964], No.16402/64. Heading G2J. An optical display device comprises a curved transparent microfilm slide 5 rotatable on gimbal bearings as an armature 7 is selectively attracted one of two sets of electromagnets such as 8, 9, 10 arranged in two mutually perpendicular directions as one of said electromagnets is energized. The slide 5 rotates about axes through projection lens 3 to bring the required micro-image into position and is balanced to prevent overshoot. A part-cylindrical or part-spherical microfilm is used.
Patent GB-312995-A (GB)
Title: Lice collector for chicken roosts
IPC: A01K31/12
Filed: 1929-05-28
Abstract: 312,995. Thompson, J. N. June 4, 1928, [Convention date]. Parasite.s, destroying.-A pair of thin boards 6 connected by hinges 8 are folded flat as shown and detachably attached to brackets 13 depending from a roosting perch 9. Lice collecting between the boards may be destroyed on removal of the boards or poison treatment may be applied to the confronting surfaces of the boards.
Patent GB-897042-A (GB)
Title: Ratchet spanner or key
Inventor: HOPWOOD HERBERT
IPC: B25B13/46
Filed: 1960-05-10
Abstract: 897,042. Wrenches. SHELLEY Ltd., R. T. March 14, 1961 [May 10, 1960], No. 16435/60. Class 61. A ratchet spanner has a rotable member 13 provided with a central through opening 15 for engagement with a nut or the like, the member 13 being rotatably mounted in a lever handle 10 carrying a spring pressed pawl 17 located in a slot 12 for engagement with peripheral ratchet teeth 14 on the member 13. The member 13 is formed from flat steel sheet or plate and is a rotatable working fit in the circular opening 11 in a handle formed from flat steel plate or sheet of substantially the same thickness as that from which the rotatable member is formed, the member 13 being retained in the opening by apertured cover plates 19 secured to opposite sides of the handle. The ratchet teeth 14 have short, part circumferential lands 16 between them to provide a substantial bearing area between the member 13 and the inner edge of the opening 11.
Patent GB-1025957-A (GB)
Title: Metal can with hermetic closure
IPC: B65D53/06
Filed: 1963-04-26
Abstract: 1,025,957. Container closures. NESTLE'S PRODUCTS Ltd. April 26, 1963 [May 4, 1962; Feb. 19, 1963], No. 16563/63. Headings B8D and B8T. A metal can of which the bottom 4 is seamed after filling comprises a body 1 having an upper part with a rounded portion 1a and a replaceable lid 2 having a peripheral lip 2b, the adjacent surfaces of the can body and lip 2b being hermetically sealed by a band 3 of adhesive. The adhesive is preferably a silicone-base resin applied by injection under pressure after the lid 2 has been fitted, or applied to both surfaces before fitting the lid. The resin is then polymerized by heating and the can is filled through the base and closed by a plate 4. The lid 2 engages frictionally with the body at 2a and is removed by prising. An annular flange 1b of diameter equal to or greater than that of the lip 2b prevents the lids of adjacent cans catching and becoming dislodged. In a modification, Fig. 3 (not shown), the lid encloses and engages frictionally an upper part of the can body, the lip of the lid being sealed to an annular flange on the body.
Patent GB-303720-A (GB)
Title: Improvements in or relating to crank shafts
IPC: F16C3/12
Filed: 1928-06-07
Abstract: 303,720. Soc. Industrielle de Machines Agricoles Rotatives Simar. May 10, 1928, [Convention date]. Crank shafts. - In built-up crank shafts, a crank-pin 5 is secured in its webs 3, 4 by providing it with a partly coned central passage 7 and a split end 6 so that a conical plug 9 forced into the coned end of the passage expands the pin into close contact with the hole in the web 4. For dismantling, the plug may be driven out from the other end of the pin. The pin may be similarly secured 'to the web 3 or may be shrunk therein. The webs may be shrunk upon the shaft parts 1, 2 or may be forged integrally therewith.
Patent GB-1106636-A (GB)
Title: Mechanical drive arrangement
Inventor: MURCHIE ROY JAMES
IPC: F16H55/16
Filed: 1967-04-12
Abstract: 1,106,636. Mechanical drive for sliding windows. FORD MOTOR CO. Ltd. 12 April, 1967, No. 16672/67. Heading E2M. [Also in Division F2] In a motor vehicle window operating mechanism, a pinion 18, driven by an electric motor 17, meshes a toothed sector 19 carrying an arm 21, and the material of the pinion 18 is flexible so that the teeth are able to deflect, as shown in Fig. 3, to allow relative slipping above a predetermined load. Preferably the material of the pinion 18 is polyurethane, and that of the sector 19 is nylon. The arm 21 carries a pin 22 which engages a slot 16 in a plate 15 secured to a support 12 for a window 11 which is slidable between guides 13, 14.
Patent GB-457665-A (GB)
Title: Improvements in and relating to baling and like presses
IPC: B30B9/30
Filed: 1935-06-08
Abstract: 457,665. Baling - presses. SHAW & SONS (SALFORD), Ltd., J., and SHAW, J., Wellington Street, Salford, Lancashire. June 8, 1935, No. 16713. [Class 94 (i)] [See also Group XXIX] Relates to baling-presses having a preliminary pressing compartment from which the material is transferred hydraulically to a press box. In the construction shown, top and bottom cross-heads a, b are connected by vertical pillars c. A junction box and valve unit a<1> is mounted on the lower cross-head, and extending therefrom are two hollow stationary rams d upon which heavy cylinders e slide, being connected at the top to a common press table e<1>. A circular platform f is mounted for rotation on one of the pillars c, and carries three bale boxes g depending therefrom at 120‹ to each other, and above it are three baling chambers h, each being a continuation of its respective bale box. The upper open face of the baling chambers is just below the grooved undersurface of the upper cross-head, and a stillage is arranged in each bale box which, in its lowest position, is just above the press table e<1>. The bale chambers each comprise 'two main doors k, pivoted at k<2> to the swivel block on the upright c. One face of the swivel block constitutes one side of the bale chamber, the doors k are the parallel long sides, and the fourth side is formed by a door m pivoted at its lower end in cross-stays m<1> forming the bottom frame of the chamber. A latch n is pivoted to one of the doors k, and hooks over the outer end of the other door. In order to take the thrust of the bale on the door m, a hand wheel r<1> is turned to press a screw r against it during hooping. The press is operated by low pressure fluid which is fed to the rams d and to a hydraulic intensifier j having a large piston i which is connected to six rams in cylinders communicating with the hollow rams d, and of different diameters. The rams are successively eliminated by hydraulically operated valves as the pressure rises.
Patent GB-497343-A (GB)
Title: Improvements in or relating to modulated carrier wave transmitters
IPC: H03F1/06
Filed: 1937-06-16
Abstract: 497,343. Modulating systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and TWATT, J. June 16, 1937, No. 16770. [Class 40 (v)] Relates to improvements in modulated carrier wave transmitters of high efficiency which do not employ large iron-cored transformers. The main valve stage 2 operates as a class C amplifier driven from a high frequency source 15 and delivers power to the tuned circuit 11, 12, resistance 13 representing the load. A high-frequency choke 4 and audio-frequency choke 5 are included in the high tension supply. Modulating signals from lead 28 are supplied to the grid of the modulator stage 32 the anode of which is connected to the high tension supply through the choke 5. The bias of valve 32 is set approximately to cut off so that it produces anode modulation substantially only over the negative half cycles of the envelope. Modulated carrier from a modulator 17 of any convenient type is fed to a supplementary power stage 20 the output of which is tapped down about half way on the tuned circuit 11, 12 at 27. The ratio of peak radio-frequency voltage to high tension voltage on the anode 21 of valve 20 in the unmodulated carrier condition, will be only about 0À45 or half the value obtaining at the anode of the main valve 2. The valve 20 is so biassed back that with no modulation a small anode feed flows and during positive peaks of modulation the stage is driven harder and delivers increased power, the tendency of the main valve 2 to take decreased feed being resisted by choke 5 with the result that this stage also delivers increased power. In a modification the drive to the main stage may be a modulated carrier in which case it may be taken from the same source as the drive to the supplementary stage.
Patent GB-334614-A (GB)
Title: Shutter for photographic cameras
IPC: G03B9/08
Filed: 1929-03-06
Abstract: 334,614. Mayer, B. March 6, 1929. Divided on 330,304. Shutters with pivoting blades. - A shutter for photographic cameras comprises a shutter plate f which has an elongated opening h and is mounted to oscillate on a common pivot with the shutter lever o, to which it is connected by a spring h<1>; a diaphragm plate which has openings x, y and is pivoted for adjustment by a lever c; and a pivoted stop lever m having a projection engaging a shoulder e on the shutter plate to retain this in the central position in register with the diaphragm opening when a time exposure is required.
Patent GB-142359-A (GB)
Title: Improvements in gas stoves or ranges
IPC: F24C3/04
Filed: 1919-07-05
Abstract: 142,359. Waters, I. A. July 5, 1919. Gas cooking-stoves.-Comprises detail improvements in a gas cooker of the kind wherein an oven and hot-plate arranged as in an ordinary kitchen range are heated by a gas fire which replaces the usual coal fire. Fig. 3 shows a stove with an oven 46 heated by three sets of burners, the flames of which play on refractory material 18 supported by a grid 17. A water tank 37 and heater 38 are fitted, and also an auxiliary burner 31. The burners, Figs 4 and 5, consist of dome-like caps 15 with parallel slitlike flame orifices; they are arranged on conduits 3 or mixing-tubes, to which air is admitted by bends 12 facing an orifice 13 in the front 8 of the stove. The front ends of the tubes 3 are removably attached to the front plate 8 by screwed bushes 9 with collars 10, through which pass the gas inlet pipes 23. The gas supply to each mixing-tube 3 is controlled by a separate tap 22 on the main 20, Fig. 4, to which gas is supplied by a pipe 19 arranged inside the fire-box so as to heat the gas passing through it. A perforated tube 24 controlled by a tap 25 serves as a pilot light. The rear ends of the mixing-tubes 3 are supported by a recessed block 6. A damper 27 may be opened to enable the combustion products to pass directly to the chimney during the preliminary heating of the stove. The burner 31 is supplied with gas by pipes 34, 32; the air inlet has a regulator 33. The chimney passes up through a plate rack and canopy above the range, and has an air inlet to allow the fumes to pass away from the canopy into the chimney. The oven has a drop door and a sloping top 42.
Patent GB-109164-A (GB)
Title: Improvements in Keyboard Mechanism of Typographic Composing and Casting Machines.
Inventor: DRUITT PERCY WALTER
IPC: B41B27/04
Filed: 1916-11-24
Abstract: 109,164. Druitt, P. W., and Gilpin, W. R. Nov. 24, 1916. Keyboards for type-bar-making machines.-In machines such as are described in Specifications 24603/94, 3585/07, and 11870/13, in which keycontrolled cam-levers for actuating escapement rods are arranged in two banks, both banks are arranged on the same side of the escapement rods and are preferably actuated by a single rotating roller. As shown, the two banks of cam-levers b are arranged in front of the escapement rods c, and a single rotating roller d is arranged between the banks. The upper bank of cam-levers is arranged in the usual manner, the cams e engaging the top of the roller when the releasing-dogs g are actuated. The cam-levers of the lower bank consist of weighted bell-cranks pivoted on a rod l and provided at the front with cams e<1> which engage the front of the roller when the releasing- dogs g' are.actuated. The cam-levers in the lower bank are staggered with respect to those in the upper bank, the arrangement causing the wear to be distributed throughout the length of the roller so that the working surface of the roller is equal to that of the usual two rollers. Any cam-lever can be readily detached, those in the lower bank being lifted off the rod l, and those in the upper bank being removed from the rod i after withdrawing a keeper-plate j.
Patent GB-570715-A (GB)
Title: Improvements in or relating to the production of cyanuric acid
IPC: C01C3/02
Filed: 1943-10-15
Abstract: 570,715. Cyanuric acid. BRUNDRIT, D., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 15, 1943, No. 16951. [Class 1 (ii)] Cyanuric acid is produced by heating, e.g., to above 190‹C. and advantageously to approximately 220‹ to 240‹C. the crude product of the reaction at room temperature of phosgene with anhydrous ammonia. Such crude product may be obtained by bringing the reagents together in the gaseous phase or by introducing them into a dry-inert liquid such as carbon tetrachloride or benzene. Advantageously a uniform heating is ensured by applying indirect heat to a suspension of such crude product in an inert liquid, e.g., medicinal paraffin or molten paraffin wax, in which case the product may be separated from the liquid by extraction with water. In examples: (1) the crude product from the reaction of phosgene and ammonia is heated in an open vessel for 30 min. at 220‹- 240‹C. with stirring; the cooled product is extracted twice shaken with dilute aqueous ammonia and the cyanuric acid separated from the cooled aqueous extract after acidification with hydrochloric acid, (2) gaseous phosgene and ammonia are passed simultaneously into dry carbon tetrachloride and the white amorphous precipitate thereby obtained is suspended in medicinal paraffin and heated to approximately 230‹C. whereupon after washing with ether, the solid is extracted with boiling water and the cyanuric acid deposited from the filtrate recrystallised.
Patent GB-195559-A (GB)
Title: Improvements in and relating to plastic compositions
IPC: B29B13/02
Filed: 1922-06-20
Abstract: To plastic compositions or cements containing phenol-aldehyde condensation products, to be hardened by heating to a definite temperature, a small amount of a dye which permanently changes or loses its colour at the appropriate temperature is added to serve as an indicator.  Suitable substances are dyes of the triphenylmethane and diphenylmethane groups, such as malachite green, methyl violet, and auramine yellow.  The invention is particularly applicable to cements such as are used in the manufacture of electric lamps.
Patent GB-1400979-A (GB)
Title: Photopolymerizable compositions
IPC: C09D11/10
Filed: 1973-04-10
Abstract: 1400979 Photo-polymerizable compositions CONTINENTAL CAN CO Inc 10 April 1973 [10 April 1972] 17026/73 Headings C3B and C3P A photo-polymerizable composition comprises (I) >30% by wt. of a #-hydroxy ester prepared by reacting a polyepoxide with a C 3-6  α,#- ethylenically unsaturated acid (e.g. as described and claimed in copending Specification 1,400,978) and (II) <20% by wt. of a polyitaconate prepared by reacting a polyepoxide with itaconic acid. In preparing I the polyepoxide to acid molar ratio may be 1 : 1 to 1 : 2; a minor amount of the unsaturated acid may be replaced by a C 3-18  saturated monocarboxylic acid. In preparing II substantially equimolar amounts of polyepoxide, e.g. a mixture of an aromatic and aliphatic polyepoxide, may be reacted with itaconic acid, a minor amount of which may be replaced by a saturated dicarboxylic acid, e.g. a C 36  dimer acid. The polymerizable mixture may also include an acrylic ester of a polyhydric alcohol, e.g. pentaerythritol tetraacrylate. A photo-sensitizer, e.g. 1-chloro, 2- methylanthraquinone may also be present. A printing ink, suitable for metallic surface may comprise 30-55% by wt. of #-hydroxy ester, 2-10% by wt. of polyitaconate, 40-70% of an acrylic ester as described above and 0À1-5% by wt. of a photo-sensitizer. After coating on a substrate the coating may be cured by exposure to ultraviolet radiation followed by heating the surface, e.g. at at least 150‹ C.
Patent GB-255083-A (GB)
Title: Improvements in or relating to disconnectible toothed gearing
IPC: B61C15/02
Filed: 1926-07-08
Abstract: 255,083. Bethlehem Steel Co., (Assignees of McGrew, J. A.). July 8, 1925, [Convention date]. Connecting and disconnecting arrangements.- In means for automatically effecting connection between toothed wheels when the driving-wheel commences to rotate, applicable in the drive of locomotive tender trucks, the teeth of an idle wheel 16, carried on an arm 17 swinging under the control of a spring 18 about the axis of the driving-wheel 14, are engaged by the teeth 23, 24 of a weighted rocking-bar 21 turning on a fixed pivot 22. The tooth 23 maintains contact with the wheel until the latter engages or nearly engages the driven wheel 15, the bar maintaining its position by engagement with the stop 26, so as to lock the idler wheel when the drive ceases and the spring 18 breaks the gearing connection. One tooth or more than two teeth may be found on the bar 21.
Patent GB-1344931-A (GB)
Title: Vehicle suspension
IPC: B60G11/18
Filed: 1971-05-26
Abstract: 1344931 Torsion bar suspensions CHRYSLER FRANCE 26 May 1971 [29 July 1970] 17163/71 Heading B7D In a vehicle suspension comprising a wheel arm 14 connected to a longitudinal torsion bar 15 having its rear end 16 adjustably anchored to a chassis cross-member 12 through a lever 17 and a bolt 18, the rear end 16 of the torsion bar 15 is held in an open cradle 50 on the underside of the cross-member 12 only by the torsional stress in the bar 15 and the reaction of the lever 17. A forked end 60 on the lever 17 engages a hemispherical member 59 carried by the bolt 18. The cross-member 12 has an inverted U- shaped cross-section which partially contains the lever 17. A connecting sleeve 52 through which the lever 17 is connected to the bar 15 has an internal configuration complementary to a hexagonal formation at the end of the bar, and external splines 54 in engagement with the lever.
Patent GB-1150695-A (GB)
Title: Device for Damping Oscillations of Crane Hoist Ropes
Inventor: HEIKKINEN URHO JOHANNES
IPC: B66C13/06
Filed: 1968-04-10
Abstract: 1,150,695. Damping oscillations of crane hoisting ropes. KONE OSAKEYHTIO. 10 April, 1968, No. 17234/68. Headings B8B and B8H. To ensure rapid damping of the lateral oscillations in the hoist rope of a crane attached to a container spreader by rings 1 the spreader comprises two beams 9, 10 joined by pivoted links 3 and an hydraulic damper 4. Swinging of the beam 10 relative to the beam 9 is damped by the damper 4 and this in turn damps the oscillations of the ropes. The damper 4 may have either a restricted orifice in its piston, or, fluid under pressure may be supplied alternately to opposite sides of the piston to oppose the motion thereof. Oscillations in a plane perpendicular to that shown in Fig. 1 may be damped by a further piston and cylinder 12, Fig. 2, (not shown).
Patent GB-755573-A (GB)
Title: Improvements in or relating to motor vehicles having self-supporting bodies
IPC: B60K5/10
Filed: 1954-06-11
Abstract: 755,573. Vehicle bodies. FIAT SOC. PER AZIONI. June 11, 1954 [June 30, 1953], No. 17251/54. Class 108 (1). [Also in Group XXXI] In a rear-engined vehicle having a self-supporting body 1 a transverse body panel 6 is detachably connected to the side walls of the body and supports the rear portion of the engine 3, the panel 6 co-operating with an upwardlytiltable lid 4 to close the engine compartment 2. As shown, the engine 3 is resiliently mounted at two front points (not shown) and on the panel 6 through spring pads members 9, 11 and a bolt 10. The member 6 is secured to a reinforcing member 6a provided with wings 7 bolted at 8 to the body 1.