baber/WOPTO huggingface dataset:
Patent GB-655089-A (GB)
Title: Improvements in or relating to the control of aircraft at low speeds
Inventor: EDWARDS WILLIAM EDMUND
IPC: B64D27/02
Filed: 1948-03-04
Abstract: 655,089. Controlling aircraft. FAIREY AVIATION CO., Ltd. March 4, 1948, No. 6791. [Class 4] An aircraft is controlled at speeds below the normal flying speed by a discharge device mounted on a spanwise pivot below the control surface of the wing and normally substantially parallel with the general plane of the wing, the discharge device being mechanically connected with the control surface so that the effect of the jet issuing from the discharge device is varied automatically on movement of the control surface to augment the effectiveness of the control surface. As shown, a rocket 32 is pivoted to a bracket 33 depending from a wing 10. A link 35 is pivoted to an aileron 12 and to a collar 34 slidably mounted on the rocket 32. A link 36 is also pivoted to the collar 34 and to a sleeve 37 which sleeve is slidable along the pivotal axis 38 of the rocket in order to vary the position of the collar 34 and hence the angular movement of the rocket in response to displacement of the aileron 12. In another embodiment (Figs. 1 and 2, not shown), the rod 35 is pivoted directly to the rocket 32.
Patent GB-580407-A (GB)
Title: Improved process for the production of polymers and apparatus therefor
IPC: B01J19/18
Filed: 1943-04-29
Abstract: <PICT:0580407/III/1> <PICT:0580407/III/2> A polymerization reactor comprises a tube 4 containing a circulating device 14 and return tubes 5 connected by headers to form a closed circuit, which is surrounded by a refrigerating jacket 1.  The circuit has an outlet 31 connected to a receiving vessel at a higher level so that the reactor is maintained full. The circulating device may be a propeller or a centrifugal device.  Polymerizable material and catalyst are separately introduced into the turbulence zone of the circulating device by pipes 16, 17.  The Specification describes the use of the reactor for the low-temperature polymerization of olefinic materials. These are delivered to the reactor, optionally in admixture with a diluent, through line 16 at a temperature of -103 DEG  C., liquid ethylene being used as refrigerant.  The propeller is then started and a Friedel-Crafts catalyst as vapour or in solution is admitted through line 17.  The polymer is formed as a fine-grained slurry in the diluent which overflows through exit 31 to a recovery tank (not shown) containing warm water, from which the polymer is subsequently separated.
Patent GB-557491-A (GB)
Title: Improvements in or relating to range finders
IPC: G01C3/12
Filed: 1942-05-19
Abstract: 557,491. Range-finders. KODAK, Ltd. May 19, 1942, No. 6814. Convention date, July 19, 1941. [Class 97 (i)] An eyepiece is arranged unsymmetrically with respect to the objectives of a coincidence rangefinder, images of the objective images, of equal size, being formed in a single field in the focal plane of the eyepiece by lens systems of different powers and by reflectors in at least one of the imaging systems. The Figure shows objectives 25, 26, producing equal images 34, 35, a lens 28 producing an erect image 36 of the image 34 in the focal plane of an eyepiece 27, and a lens 29, and mirrors 30, 31 producing an image, coincident with the image 36, of the image 35. The mirror 31 may be semi-transparent, or may cover only half the field to produce a split field. Coincidence may be produced by any means, for example by moving the lens 29 laterally, a pointer 40 on its mount indicating range on an adjacent scale 41.
Patent GB-700776-A (GB)
Title: Control means for internal combustion prime movers
Inventor: WATSON ERNEST ANSLEY
IPC: F02C9/28
Filed: 1951-03-27
Abstract: 700,776. Gas turbine plant. LUCAS (INDUSTRIES), Ltd., J. March 24, 1952 [March 27, 1951], No. 7048/51. Class 110 (3) [Also in Group XXIX] The operation of a jet-propulsion or gas turbine engine is regulated by a hand operated servomotor controlled by a valve actuated by a lever mechanism which is acted on by a force or forces corresponding to the ratio of engine blower inlet pressure or ambient atmospheric pressure to blower delivery pressure, the power member of the servomotor being adapted to vary the fulcrum of the lever mechanism and to effect adjustment of the engine controlling means, e.g. the fuel control. Blower delivery pressure acts through a connection r on an evacuated elastic capsule n and on one side of a diaphragm p the opposite side of which is exposed to the atmospheric pressure or to blower inlet pressure through a connection s. The diaphragm which is of larger area than the capsule is operatively connected to the capsule through a rod o and a lever k having an adjustable fulcrum m. The rod o acts through a lever j on a vent valve h controlling a servo-piston b operating in a cylinder a supplied with liquid from the fuel system by a passage e, the two ends of the cylinder being connected through a restricted orifice f. The piston b operates through a rod d on the movable fulcrum m so as to reset the vent valve h after a control operation. The piston b also regulates the engine control means which in this case comprise a throttle 2 in the main fuel supply passage 3. The throttle 2 is operated by a spring-loaded servo-piston 4, generally similar to the piston b, controlled by a vent valve 7 carried by a lever 8 connected to the throttle by a spring 14. The lever 8 is operatively connected to a lever 17 through a movable abutment 18. The lever 17 is acted on by an evacuated elastic capsule 15 subject to blower delivery pressure through a connection 16. The abutment 18 is carried by a spring-loaded rod 19 adjustably positioned by a cam 20 operated through rack and pinion mechanism 21 by the piston rod d The pressure drop across the throttle 2 acts on a diaphragm 11 which is connected through a lever 12 to a vent valve 13 which controls through a further liquid-operated servomotor (not shown) the fuel pump output. Specification 577,016, [Group XXIX], is referred to.
Patent GB-437867-A (GB)
Title: Improvements in or relating to printing appliances employing embossed printing plates
IPC: B41L47/42
Filed: 1935-03-07
Abstract: 437,867. Printing-machines. ADREMA MASCHINENBAUGES., 20, Gotzkowskystrasse, Berlin. March 7, 1935, Nos. 7212 and 7213. Convention dates, March 7, 1934 and Dec. 12, 1934. [Class 100 (ii)] Platen machines; addressin{J - machines.- Relates to platen printing-machines of the kind comprising a rocking arm carrying a printing-head adapted to receive an embossed sheet-metal printing-plate and consists in providing a number of impression pads mounted on a common carrier which can be moved to bring any one of the pads into printing position. In the machine shown in Figs. 4 and 5, a number-printing head 26 and a head 8 grooved to receive a printing-plate 7 are carried by a rocking arm 24 actuated by a handle 25, and impression pads a-c are mounted on a carrier 28 slidable in guides 27 so that any selected pad can be moved into printing position to print from different parts of the plate 7 with or without numbering, the carrier being retained in adjusted position by a ball catch 37 and prevented from complete withdrawal by stops 39. Each pad consists of strips such as a<11>-c<11> removably secured to a base plate 36 detachably held between a fixed bolt 33 and a spring-pressed bolt 34 on a plate 30 secured to the carrier 28 by levelling-screws 32 with the interposition of a ball 31. Figs. 1-3 (not shown), illustrate a similar construction in which the arm 24 is foot-operated. In a third construction, a carrier 68, Fig. 8, for pads 70-72 is retained in adjusted position by a pair of pivoted pawls 76, 76<1> pressed upwardly by springs 78 so that bevelled ends of the pawls lie in the paths of movement of studs 83-85 projecting downwardly from the carrier. By turning a D-shaped shaft 81, the pawls may be lowered so that the carrier may be moved into the next position, the ends of the pawls being bevelled oppositely as shown so that whichever way the carrier is moved one of the pins 83-86 depresses the first pawl and comes to rest between the two pawls. In this machine, the printing-plate is slid into the printing-head from the front so that the lines of characters extend across the carrier, whereby a list-sheet of any length can be printed. An ink-ribbon 49 mounted on spools 50, 51 is fed step-by-step by a pawl-bar reciprocated by a crank 62 connected by a link 63 to a stationary bracket and oscillated by the movement of the rocking printing-arm. Either of two pawls 59, 59<1> may be put in operation to wind in one direction or the other. Specification 348,265 is referred to.
Patent GB-1294241-A (GB)
Title: Improved method and apparatus for testing flexible textile reinforced structures
IPC: G01N3/00
Filed: 1970-02-16
Abstract: 1294241 Testing flexible tubes MILLHAVEN FIBRES Ltd 16 Feb 1970 [17 Feb 1969] 7278/70 Heading G1S A flexible tube 17 to be tested is inflated to simulate a vehicle tyre and has one end rotatably fixed to an arm 22 which may be adjustably positioned and fixed by a nut 26 to a quadrant 25 and the other end of the tube is rotated by and fixed to the shaft 9 of an electric motor 1 rigidly retained in a cage 2 counterweighted at 3. The motor and its cage are freely rotatable in bearings 7, 8 and turn a toothed wheel 15 by which the speed and r.p.m. of the motor shaft 9 can be gauged. A pointer 30 fixed to support 4 is used to determine the degree of deflection of the cage 2 when the tube 17 is rotated. Air is passed under pressure into an air box 10 and through shaft duct 14 to pressurize the tube 17 which rotates about its bent axis until rupture results. The number of tube rotations are indicated from the wheel 15 and different angles of bend may be set up. In another embodiment the tube 17 is not bent through a fixed angle but subjected to a fixed bending torque applied by a chain 27 and weight 29. The amount of reverse torque applied to the cage 2 is indicated by pointer 30 and from this and the r.p.m. of the shaft 9 the energy or work input converted to heat per revolution or per unit of time may be calculated to give the hysteresis loss.
Patent GB-1122777-A (GB)
Title: An improved footrest
IPC: A47C16/02
Filed: 1966-02-19
Abstract: 1,122,777. Foot rests. F. D. CHISHOLM. 19 May, 1967 [19 Feb., 1966], No. 7381/66. Heading A4J. In a footrest, the position of a foot-supporting panel 2 is adjustable, in inclination and height, by means of a clampable slide 10, moveable along a sleeve 7, and a telescopically extendable rod 4, pivoted to the base frame 3.
Patent GB-349661-A (GB)
Title: Petroleum borehole pump
IPC: F04B9/10
Filed: 1930-03-06
Abstract: 349,661. Borehole pumps. DIETZ, F., 46, Ludwigstrasse, Nuremberg, Germany. March 6, 1930, No. 7427. [Class 102 (i).] In petroleum borehole pumps there are provided separating layers of a liquid which is immiscible with the liquid to be raised for keeping the latter out of contact with the sliding parts, such layers being disposed in front of and behind the parts of the pump which are in sliding contact. A pump 1 has its plunger 2 immersed in front and behind at 5, 6 in a protective liquid which is immiscible with the liquid to be raised, the latter being drawn in through a suction valve 3 into the space 9 and delivered through a valve 4 into the bore 11. In the modification in Fig. 4, the pump is arranged so that the cylinder 34 and piston 35 contain pure oil and sealing tubes 38, 39 are fitted in which is contained the sealing liquid 44, 45. In this case the sealing liquid may be MgCl2 or CaCl2, which is only slightly greater in density than the oil. Ordinarily the protective liquid would be mercury. According to the arrangement in Fig. 5, the conical valve 49 employed seats on the ring 48 and above it is an elastic member 51 held in position by the cap 53. The liquid 54 to be raised enters through the passages 55 and is delivered through the passages 56. A downward extension of the valve cone 49 acts as a guide and moves over the fixed hollow piston 50 and on them are mounted sealing tubes 58, 59 respectively. In and above the stationary hollow piston 50 is placed the pure oil 60 which is separated from the crude oil 54 by a mercury column 61, 62.
Patent GB-492041-A (GB)
Title: Improvements relating to electrically operated sound producing signalling or warningapparatus
IPC: G08B3/10
Filed: 1937-03-13
Abstract: 492,041. Audible signalling-apparatus. LUCAS, Ltd., J., HARRIS, T. A., and TAYLOR, H. C. March 13, 1937, No. 7456. [Class 118 (ii)] In an electrically operated sound-producing apparatus, such as a motor-car horn, the exciting winding is in two parts a, b connected in series with an interrupter f and the contact g of a switch e, the other contact h being connected to a tapping c on the winding in order that a loud or soft signal may be given. In a modification, Fig. 2, a relay i is used to close the contacts j, k when giving a loud signal. In a further modification, two horns are connected in parallel with the taps taken to two sets of contacts closed by the relay.
Patent GB-557850-A (GB)
Title: Preparation of ª‰-alanine amide by reduction of cyanoacetamide
Filed: 1942-06-03
Abstract: 557,850. #-amino-propionamide. LEDERLE LABORATORIES, Inc. June 3, 1942, No. 7560. Convention date, June 19, 1941. [Class 2 (iii)] #-amino-propionamide is prepared from cyano-acetamide by a reduction process which is carried out by the gradual addition of an acetic acid solution of cyano-acetamide to a hydrogenation catalyst and hydrogen. The preferred catalyst is one prepared by reducing palladium chloride in the presence of activated charcoal and an amount of anhydrous sodium acetate in excess of that required to react with the liberated hydrogen chloride. In examples (1) an acetic acid solution of cyano-acetamide is added to an acetic acid suspension of reduced palladium chloride, a hydrogen pressure being maintained in the apparatus. When the theoretical amount of hydrogen had been absorbed the solids were filtered and the solvent removed in vacuo. The #-amino-propionamide is then extracted with hot ethanol and if desired hydrolysed to #-alanine. (2) As in example (1) with varying times of reaction and quantities of reagents.
Patent GB-824293-A (GB)
Title: Process for the production of nitrogen-containing heterocyclic carboxylic acids
IPC: C07D213/803
Filed: 1956-03-12
Abstract: Aromatic N-heterocyclic carboxylic acids are produced by reacting in the liquid phase aromatic N-heterocyclic compounds, having at least one aliphatic side chain oxidizable to a carboxyl group, with molecular oxygen in the presence of a catalyst comprising in conjoint presence bromine and a heavy metal oxidation catalyst.  Preferably the metal (e.g. manganese and/or cobalt) and/or the bromine is in ionic form, e.g. both may be introduced jointly as a heavy metal bromide, or the heavy metal may be introduced as a carboxylate thereof and the bromine as ammonium bromide or a soluble organic bromide.  Examples describe the oxidation of 3- and 4-methylpyridine to nicotinic and isonicotinic acids (the former isolated as its copper salt), and reference is also made to the oxidation of 5 : 6 : 7 : 8-tetrahydroisoquinoline to pyridine-3 : 4-dicarboxylic acid.
Patent GB-1023220-A (GB)
Title: Production of carboxylic acid amides
IPC: C07D215/52
Filed: 1963-02-26
Abstract: The invention comprises a process for preparing compounds of formula <FORM:1023220/C2/1> wherein R1 and R2 are hydrogen or methyl or ethyl groups or form a benzene ring in combination with the 5- and 6-carbon atoms of the pyridine ring, which may have a 2-phenyl substituent when a quinoline is formed, R3 is an aliphatic, substituted or unsubstituted aryl or heterocyclyl group and R4 is hydrogen or an alkyl group or R3 and R4 in combination with the nitrogen atom to which they are attached form a heterocyclic ring, by heating the appropriate acid and the appropriate amine in molar ratio in the presence of polyphosphoric acid.
Patent GB-1136891-A (GB)
Title: Preparation of monomeric perfluoroalky esters of unsaturated acids
IPC: C08F20/24
Filed: 1966-02-21
Abstract: 1,136,891. Fluoroalkyl esters of acrylic and methacylic acids. MINNESOTA MINING & MFG. CO. 21 Feb., 1966 [1 March, 1965], No. 7596/66. Heading C2C. Acrylic or methacrylic fluoroalkyl esters of formula in which R #  represents a perfluoroalkyl group (3-12 C), m is 2 to 12 and R represents hydrogen or a methyl group are prepared by reacting a saturated fluorinated alkyl ester in which R<SP>1</SP> represents an alkyl (1-4 C), with an alkyl (1-4 C) acrylate or methacrylate in the presence of an ester-interchange catalyst. Tetraisopropyl titanate, p-toluene sulphonic acid, sodium bisulphate, sulphuric acid, boron fluoride diethyl ether complex, mercuric acetate or copper resinate may be used as catalysts and the preparation of and is described.
Patent GB-990957-A (GB)
Title: Strontium ion-containing toothpaste
Inventor: ROSENTHAL MURRAY WILLIAM
IPC: A61K8/86
Filed: 1964-02-24
Abstract: Toothpaste compositions, for treatment of hypersensitive dentin, comprise non-toxic ionizable strontium salts in an aqueous solution, which also contains a surface-active wetting agent compatible with strontium ions, the said compositions being free from appreciable amounts of substances which precipitate strontium salts are the chloride, acetate, bromide, lactate, iodide, nitrate, or salicylate. Suitable wetting agents are polyoxyethylene partial esters of polyhydric fatty acid derivatives, polyoxyethylene-polyoxypropylene condensate, polyoxyethylene-fatty alcohol ether, or a fatty acid N-methyl taurine condensate.  The toothpaste preferably contains strontium-ion-compatible polishing agents, e.g. strontium phosphate, strontium carbonate, micronized silica, or aluminium hydroxide; and a strontium-ion-compatible bodying agent, e.g. methyl cellulose, hydroxyethyl cellulose, or high molecular weight polyoxy ethylene polymers.  Sufficient water should be present to dissolve a therapeutically active amount of the strontium compound.
Patent GB-229129-A (GB)
Title: Improvements in and relating to hangers or supports for garments
IPC: A47G25/30
Filed: 1924-03-26
Abstract: 229,129. Smith, H. G. Lee-. March 26, 1924. Coat and like hangers. -The upper surface of a hanger is covered or partly covered with a strip B of rubber, leather, or like material to prevent the garment from slipping off. The strip may be of pimbled rubber fastened by glue, or embossed leather.
Patent GB-313219-A (GB)
Title: Improvements in or relating to means for securing plates or sheets of metal or like material to a supporting frame
IPC: F24C15/02
Filed: 1928-03-13
Abstract: 313,219. Flavel, P. W. March 13, 1928. Doors.-In constructions comprising spaced sheets secured in a frame bv members which clamp one of the plates against the frame and form an interlocking joint with the other plate, the interlocking joint is such that the plate secured by it can be'moved to allow one clamping member to be secured to the frame from the space between the sheets, after which the plate is interlocked with another clamping member, which is then secured from outside the frame. The invention is particularly applicable to the doors of gas ovens, that shown comprising an outer frame 1 in which are secured metal plates 3, 15 by means of angle-iron securing members 7, 10. The plate 3 is clamped between the horizontal flanges of the securing members and a flange 2 on the frame, a pad of sheet asbestos 4 preferably being interposed. The plate 15 has bent-over edges 13, 14 which interlock with the vertical flanges of the securing members. In assembling, the upper securing member 7 is first attached to the frame by an internal screw 5, the plate 15 hinging about the engaging edge of the member to allow access to the screw. The lower edge of the plate is then engaged with the vertical flange of the member 10, which is then secured from outside the frame by a screw 8. Only one screw thus appears outside the frame. The screws 5, 8 are inclined as shown to force the members 7, 10 against the front plate 3. The upper edge of the plate 15 may engage a hook or lug on the frame 1 instead of engaging the member 7.
Patent GB-123654-A (GB)
Title: Improvements in or relating to Pumps.
IPC: F04D29/10
Filed: 1918-05-08
Abstract: 123,654. Vickers, Ltd., and Duncan, T. S. May 8, 1918. Leakage-preventing devices.-A hollow impeller shaft B with radial openings B<2> into a chamber L' surrounding the shaft serves to conduct to the suction chamber of the pump any liquid which escapes along the shaft past the washers or packing-rings G, K. The cylindrical face of the cupleather G is forced centrifugally against the boss E' on the casing. The hat-leather washers K, M, are held between the flange E<3>, the loose sleeve L and the plate N which, with the ball-bearing J, is held in place by the cap E<2>. In a modification, the hat-leather M is replaced by a washer of T- section. The pump may be driven by an airdriven screw C, or from an engine shaft.
Patent GB-683551-A (GB)
Title: Improvements in or relating to steel pit-props
IPC: E21D15/32
Filed: 1949-12-13
Abstract: 683,551. Pit props. RINGFEDER GES. Dec. 13, 1949 [Sept. 26, 1949], No. 7745/50. Divided out of 683,541. Class20(ii) The locking device o a two-part telescopic pit prop comprises split nut or segments 4 with a frusto-conical exterior surface dis posed around the upper part 1 and having screw threads, recesses or projections adapted to engage complemental screw threads &c. on the part 1, the split nut 4 bearing against a. collar 7 on the lower part 2 and being surrounded by a ring spring 3 with a frustoconical inner surface, the arrangement being such. that downward movement of the spring 3 over the split nut 4 causes positive engagement of the projections and recesses, the two prop parts being thus locked together. The spring 3 is surrounded by a housing 5 which together with the spring 3 is caused to move downwards by a movable pin 9 on which is mounted a cam disc or eccentric 8 operated by a hand lever 10 and bearing against the collar 7. Spring rings 6 serve to maintain on the split nut 4 a force tending to disengage it from the upper part 1. In a modification the ring spring itself is fashioned as a housing 11, Fig. 2 (not shown), adapted to ride over the split nut and to engage it with the part 1.
Patent GB-243594-A (GB)
Title: Improvements in and relating to rings and travellers for spinning and twisting machines
IPC: D01H7/60
Filed: 1925-03-23
Abstract: 243,594. Gordon, S. S. March 23, 1925. Spindle apparatus.-Relates to rings for spinning and twisting machines of the kind formed of two concentric members having coplanar flanges, the edges of which are spaced apart to form a slot through which a shank which, with an attached shoe, constitutes the traveller projects. The ring is provided with tracks 20, 21 for the traveller, and with oil channels 22 forming a reservoir connected with the guiding surfaces of the tracks by capillary ducts 23 inclined in the direction of travel of the traveller, so that the movement of the traveller exercises a slight suction effect and causes a diffusion of oil to the guiding surfaces. Strands of yarn are laid in the channels and may ba extended into the ducts, and the channels are supplied through an opening 27. The traveller comprises a bronze shank 11 secured to a shoe 12 and is formed from a blank, the edges being bent to form a cylindrical shank. A brake ring 25 is provided to retard the traveller at high speeds.