baber/WOPTO huggingface dataset:
Patent GB-192273-A (GB)
Title: Improvements in or relating to devices for centering and setting up work in machine tools
IPC: B23B31/02
Filed: 1922-01-23
Abstract: 192,273. Green, E. R. Jan. 23, 1922. Face-plates. - A face-plate for holding bored work, such as a wheel blank in a gear-cutting machine, is provided with a tapered member, movable normally to the face of the plate so as to co-operate with the edge of the base to centre the work. The face-plate 1 is bored at 3 to receive a tapered member 9 which is pressed by a spring 8 against a stop-nut 14 on a rod 7 screwed into the upper end of a central pin 5 extending from the base 4. The pin 5 is provided with an enlargement 6 to guide and support the member 9 in the vicinity of the work 22. The work is placed on the tapered member which is forced down when the work is clamped to the plate by a nut 16 and slotted washer 17. Bolts and straps may be used in conjunction with T- slots to fix the work more securely. For use with work having a large range of bores, a series of members of different taper may be used separately as required to keep the height of the tool low, Fig. 3 showing a form in which a flat annular platform 26 is formed between the conical surface and the cylindrical bearing surface 11. If the part 25 of the work is smaller than the bore 3 and there is no other machined surface to co-operate with the face-plate, a flat machined washer may be interposed between the work and the plate. A recess 19 and holes in the face-plate are provided for registering and fixing the tool to a back plate, which can be bored and screwed to fit a machine tool head, or formed with a spigot to register with the central base of any existing worktable.
Patent GB-701347-A (GB)
Title: Improvements in or relating to electric pulse coding signalling systems
Inventor: DUREAU GABRIEL
IPC: H04B14/02
Filed: 1952-01-24
Abstract: 701,347. Cathode-ray tubes. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES. Jan. 24, 1952 [March 1, 1951], No. 2011/52. Addition to 661,808. Class 39(1) [Also in Group XL(c)] The cathode-ray tube coder of the parent Specification, for producing code groups of pulses corresponding to sampled signal amplitudes, is modified to include an automatic beam control device to ensure accurate quantization of the input signal before coding. The tube comprises the deflecting electrodes 6, apertured coding plate 8 and output electrode 7 as in the parent Specification and interposed between electrodes 6 and plate 8 is a further apertured screen 9 adapted to emit secondary electrons to a collector electrode 10 surrounding the beam path. When the beam is released by a pulse 21 applied to control electrode 3 the deflecting electrodes 6 receive a sample step of the signal wave 22 and the rising portion of the sawtooth 23 through amplifier 14. If the initial deflection causes the beam to be inaccurately centred on one of the apertures 9<SP>1</SP>, 9<SP>2</SP> &c., of screen 9, a current developed in resistance 11 from electrode 10 is amplified in circuits 12 and 13 and added 10 the input of amplifier 14 to correct the centering. This operation takes place during the period of a pulse 24 which gates open the amplifier 13, comprising valves 16, 17 and 18, the correcting voltage thereafter being maintained by the charge developed on.condenser 19 during this period. This charge is dissipated during the next period of beam suppression by a gating pulse 25 which renders valves 16 and 17 conducting, the input from amplifier 12 being absent at this period. Valve 17 acts as the anode impedance of valve 16 and also the discharging impedance for condenser 19. The output valve 18 is a cathode follower stage fed with the voltage across condenser 19.
Patent GB-237303-A (GB)
Title: Improvements in sheet metal hollow-ware
IPC: A47J47/18
Filed: 1924-10-27
Abstract: 237,303. Stewart & Son (Wolverhampton), Ltd., J., and Jones, E. A. G. Oct. 27, 1924. Bottoms ; foot-rings.- Relates to the attachment of the bodies to the bottoms and footrings or buckets or other sheet - metal hollow-ware. The base portion C is brought by swaging to the form shown in Fig. 4, comprising an annular groove f and a shoulder e. The side G, slightly bell mouthed at g, is placed in position and the parts, after being spot-welded, if desired, are secured together by swaging a rib h, Fig. 5, from the side into the groove of the base. The s'waging is done completely round the base in one direction and then reversed.
Patent GB-546890-A (GB)
Title: An improved method and apparatus for the mixing of gas and air in burners
IPC: F23D14/64
Filed: 1942-02-16
Abstract: 546,890. Bakers' ovens; atmospheric gas burners. VICARS, Ltd., T. & T., and CROSLAND, E. M. Feb. 16, 1942, No. 2030. [Class 75 (i)] [Also in Group XII] The burner 7 heating a bakers' oven or other heating chamber is connected to mixing tube 5 into which a stream of gas issuing at a high velocity from a nozzle 3 induces a flow of air through a chamber 12 from a jacket containing slag-wool asbestos-wood or other insulating material 9 surrounding the oven. Any moisture deposited in the material 9 is thereby removed and deposits of dust or flour on the mixing tube tending to affect the air and gas ratio are prevented. The chamber 12 is surrounded by a perforated plate 11 and a gauge shield 10. The air flow from the chamber 12 to the mixing tube may be regulated by an adjustable screw 14. The air is preferably filtered before entering the oven' jacket. In another construction the air from the jacket instead of being drawn through the chamber 12 is drawn through an annular chamber surrounding the nozzle 3. The air may enter the jacket through perforations below the oven floor or through a casing at the front of the oven.
Patent GB-854935-A (GB)
Title: Improvements in or relating to nitration of aromatic compounds
IPC: C07C205/12
Filed: 1959-01-20
Abstract: Aromatic compounds, which have at least one aromatic ring free from a meta-orientating group, are nitrated with nitric acid of 30 to 100% concentration in the presence of a sulphonated aromatic ion-exchange resin, preferably a sulphonated styrene-divinylbenzene copolymer. The nitration may be carried out at room temperature; and it is desirable that the reaction-temperature should not exceed 50 DEG C. Even when an excess of nitric acid is employed in the reaction, in no event is more than one nitro group attached to any one aromatic ring. The nitration, in the presence of the resin, of toluene (Examples 1, 4, 5) and chlorobenzene (Examples 2 and 6) yields a much higher proportion of the para-nitro isomer than when nitration is effected with nitricsulphuric mixed acids.  In the nitration of a -nitronaphthalene (Example 7), the formation of 1,5-dinitronaphthalene is favoured over the formation of 1,8-dinitronaphthalene.  The resin normally has an average of 1,5 to 4 sulphonic acid groups per aryl nucleus.  Resins which contain a large proportion of water are treated to remove this water, by azeotropic distillation with toluene or by washing with sulphuric acid, before the resin is used in the nitration.  The resin may be in the form of a bed through which the mixture of nitric acid and aromatic compound is allowed to percolate, the pressure being maintained sufficiently low so that the reaction-water is vaporized, together with excess aromatic compound, as an azeotrope.  Example 3 relates to the nitration of bromobenzene, benzyl chloride, cumene and butyl benzene.  Example 8 relates to the nitration of phenol to give o- and p-nitrophenol. Example 10 relates to the nitration of naphthalene to yield predominantly 1,5-dinitronaphthalene, with smaller proportions of a -nitronaphthalene and 1,8-dinitronaphthalene.  Example 11 relates to the nitration of acenaphthene to yield a mixture of 3-nitro-acenaphthene and 3,4-dinitroacenaphthene.  Examples 12 and 13 relate to the preparation of 9-nitroanthracene and 9-nitrophenanthrene, respectively.  The nitration of the following compounds is briefly referred to: fluorobenzene, iodobenzene, 1-chloro-3-bromobenzene, aniline, o- and m-toluidine, the cresols, anisole, phenyl acetate and phenyl propionate. Specification 577,707 is referred to.
Patent GB-628809-A (GB)
Title: Stretcher convertible into other apparatus
IPC: A61G1/04
Filed: 1946-01-23
Abstract: 628,809. Hinges. DEURINCK, A. R. A. Jan. 23, 1946, No. 2181. Convention date, Feb. 15, 1941. [Class 65 (ii)] [Also in Group XXXII] A stretcher comprises two side bars 1, 2, Fig. 2, each terminating in a casting 3, Fig. 3, having serrated faces 4, 5, the end of the casting being bored to receive one end of a U-shaped cross-bar 9, the other end of the cross-bar being provided with a flattened surface which abuts the end of the adjacent casting to which it is secured by a swing latch 13, Fig. 6 (not shown). Two arms 16, 19 are hinged to the casting 3 by a bolt 22 and nut 23, the abutting faces of the arms 16, 19 being serrated to engage with the serrated faces 4, 5. The arms 16, 19 may be turned into various positions to form different articles, e.g. they may be aligned with the side bars with one pair of arms 19 inclined to form a headrest of a stretcher, or the arms 16 may be turned down to form table legs. In other modifications two depending arms 16 may be provided with wheels or one cross-bar 19 provided with one wheel to form a wheelbarrow, in a further modification the structure may be placed on a trailer vehicle to form a hood the bars 16 at one end being attached to a bicycle.
Patent GB-996060-A (GB)
Title: Bundling apparatus
IPC: B65B25/14
Filed: 1961-11-27
Abstract: 996,060. Wrapping-machines. TORONTO STAR Ltd. Nov. 27, 1961 [Oct. 25, 1961], No. 2183/64. Divided out of 996,059. Heading B8C. The subject-matter and claims are concerned with the roller cage of Specification 996,059.
Patent GB-639250-A (GB)
Title: Manufacture of dyestuffs of the anthraquinone series
IPC: C09B1/516
Filed: 1947-08-06
Abstract: Dyes are made by acylating a mono-oxymono-amino-anthraquinone, of which the oxy group is in 1-position and the amino group in 5-position, using an acylating agent capable of introducing the residue of an aliphatic monocarboxylic acid containing at least 3 carbon atoms.  Monocarboxylic acids specified are propionic, valeric, butyric, caproic, caprylic, lauric, palmitic, stearic, or oleic. Inert media specified are pyridine, acetone, nitrobenzene, or chlorbenzene, or excess acylating agent may be employed.  The products dye or print cellulose esters (e.g. the acetate), superpolyamides, superpolyurethanes, and polyvinyl compounds yellow shades, and colour fats and oils.  Examples describe the reaction of 1-amino-5-oxyanthraquinone with propionyl chloride, and the use of the acid-pasted product, in admixture with sulphite cellulose waste liquor, to dye cellulose acetate.
Patent GB-565495-A (GB)
Title: Improvements relating to apparatus for applying wax and like materials to cardboard,paper and the like
IPC: B31B1/74
Filed: 1943-02-11
Abstract: 565,495. Printing processes. LYONS & CO., Ltd., J., and HENDRICK, W. T. S. Feb. 11, 1943, No. 2299. [Class 100 (ii)] [Also in Group III] In a machine for applying wax or other material requiring heat to reduce it to a suitable consistency for printing, to box blanks, &c., the wax &c. is printed by a roller 30 etched or engraved, e.g. along fold lines 2, to leave printing areas in relief to which areas the wax &c. is applied by the edge of a felt strip 4 to which the molten wax is continuously supplied from a duct 12 connected to a supply tank 10. The printing roller may be provided with electrical heating elements 3. The tank 10 discharges into a duct 7 leading to a number of the ducts 12 controlled by valves 16 urged to the closed position by springs 17 and having collars 18 connected by suitable linkage to a governor controlling the speed of the machine so that the supply of wax varies with the speed of printing. The felt strip 4 is mounted on a tray 23 slidable on the base of the valve block 6 so that the strip may be withdrawn from contact with the roller 30 when the machine is idle. Instead of a gravity feed of the wax from the tank 10, the wax may be continuously circulated through the duct 7 from a feed tank, excess passing to a second tank connected by a pipe to the feed tank.
Patent GB-510009-A (GB)
Title: Improvements in or relating to lockstitch sewing machines
IPC: D05B57/14
Filed: 1938-01-25
Abstract: 510,009. Sewing-machines. UNION SPECIAL MACHINE CO. Jan. 25, 1938, No. 2339. Convention date, Jan. 30, 1937. [Class 112] In order to reduce wear between the raceway 31 of a rotary hook and the rib 39 of the bobbin holder 38, the raceway is made wider than the rib so that side contact is not continuous, and to avoid pinching the needle thread between the rib and the raceway these parts are pressed together during the first half revolution of the hook after catching the loop, the rib floating in the raceway during the remainder of the stitchforming cycle. In the arrangement shown, the rotary hook makes two revolutions to one of the needle-driving shaft and the means for pressing the rib 39 against the side of the raceway 31 when required is actuated by the feed mechanism. The feed-bar 6 is supported by a link 23 from the feed-lift crank and is pivoted to an arm 9 on a rock-shaft 10 which is oscillated through a telescopic link 12 from the feedadvance eccentric, the feed being varied by mechanism as described in Specification 413,120. The bobbin-case cover 50 is provided with a pair of lugs 44, which embrace the end of a fixed arm 45 to prevent rotation of the bobbincase, and with a raised cam surface 55. An arm 60, pivoted to the feed-bar and spring- biassed to swing back when a spring latch 67 is released, has adjustably fixed to it an abutment member 58 which engages the cam surface 55 on the bobbin-case cover during the idle rearward movement of the feed dog to press the rib 39 against the side of the raceway 31.
Patent GB-741717-A (GB)
Title: Improvements in projectiles and other flying bodies
Inventor: WALLIS BARNES NEVILLE
IPC: B64C3/40
Filed: 1947-01-25
Abstract: 741,717. Controlling aircraft. VICKERS-ARMSTRONGS, Ltd. Jan. 22, 1948 [Jan. 25, 1947; March 25, 1947], Nos. 2375/47 and 8096/47. Class 4. [Also in Group XXI] An aircraft or other flying body 10 is provided with wings 13, 14 which are movable in azimuth during flight, about axes tangential to the sides of the body 10, the aircraft being characterized by the fact that each wing is carried by a pintle 20 and is rotatable thereon by a fluid-pressure motor 22. Each pintle is secured to a carriage 18B mounted on two sets of rollers 19B moving in tracks 17B secured to the fuselage frames 11, 12. The carriages are driven by a fluid-pressure motor 28 through a rack 27 and toothed quadrants 26 to rotate the wings about the azimuthal axes X1, X2; Y1, Y2. Four pinions 31, 32 secured to tubular shafts 33 mesh with duplex racks 30 to transmit torsional stresses on the wings to the frames 11, 12. The motors 22 move the wings differentially to control roll and in unison to control pitch. The wings of an aircraft as described in Specification 595,464 may be extended during launching and landing but folded back for high-speed flight. Alternatively a projectile as described in Specification 374,247 may have wings that are extended after launching. The first Provisional Specification refers to Specification 595,490.
Patent GB-902991-A (GB)
Title: Improvements relating to intermittent index mechanisms
IPC: F16H27/04
Filed: 1961-01-20
Abstract: 902,991. Toothed gearing. GLEASON WORKS. Jan. 20, 1961 [Feb. 15, 1960], No. 2391/61. Class 80 (1). In index mechanism, particularly for a gearcutting machine, whereby a shaft 27 is intermittently rotated in one-revolution steps, the shaft 27 carries a gear 23 and a cam follower 24 co-operating respectively with a gear segment 10 and cam drum 11 which are continuously rotated through worm and bevel gearing by a motor 12. The cam 11 rotates at twice the speed of the gear 10 and the velocity ratio between gears 10 and 23 is 3 : 2. As the segmental toothed gearing 10-23 comes out of mesh rollers 25, 26 on the follower 24 swing into engagement with open-ended grooves in the cam drum 11 which then smoothly control the deceleration, dwell and acceleration periods of the shaft 27. As the gearing 10-23 again comes into mesh the rollers 25, 26 swing out of the cam grooves. Thus during each cycle, comprising one revolution of the shaft 27 and two revolutions of the cam 11, the shaft 27 is accelerated from rest by the cam 11, driven at constant speed by the gearing 10-23, decelerated by the cam 11 and held for a " dwell " by the cam 11. In a modification the shaft 27 carries a gear segment engaging a fully-toothed gear replacing the gear 10.
Patent GB-823437-A (GB)
Title: Oxidation of dialkyl benzenes
Inventor: O'NEILL WILLIAM A LEXANDER
IPC: C07C51/275
Filed: 1957-01-23
Abstract: Aromatic dicarboxylic acids are prepared by oxidizing a dialkyl benzene with nitrogen dioxide in a non-aqueous liquid medium which is stable under the oxidation conditions used.  The reaction may take place at elevated temperature and pressure in a carboxylic acid medium such as acetic, propionic or benzoic acids in the presence of a metallic oxidation catalyst such as cobalt or manganese acetate or bromide.  The oxidant may be liquid or gaseous NO2 which may be mixed with small amounts of other oxidizing gases such as air or nitric oxide.  The examples describe the oxidation of o-, m- and p-xylene and p-di-isopropylbenzene.
Patent GB-1452862-A (GB)
Title: Apparatus for ventilating cutter heads of mineral mining machines
IPC: E21C35/23
Filed: 1974-01-18
Abstract: 1452862 Ventilation and dust suppression in mining machines COAL INDUSTRY (PATENTS) Ltd 18 Dec 1974 [18 Jan 1974] 02430/74 Heading E1F The apparatus for ventilating drum type cutter heads of mineral-mining machines involves re-locating of the low pressure, dust-suppression fluid-supplying conduit system 16, 13, 20 and air flow-inducing, high pressure fluid jet-discharging nozzle 39 of the apparatus of the referred to Specification 1378456 so that the nozzle 39 will now be offset from instead of lying on, as in said specification, the axis of the bore 6 in the driven, cutter drum-carrying shaft 3 of a mining machine when the apparatus is mounted on the machine to span the inlet of the bore 6 and the conduit system will extend along said axis 4 instead of being offset thereof as in said Specification. The axis of the outlet nozzle 39 may be either inclined to or extend parallel to said axis 4. Several nozzles may, like the shown nozzle 39, be mounted on that component 7 of the apparatus by which the apparatus is mounted on the machine. The elongated member 20 is rotatably associated with a head 26 to feed dust-suppressing liquid into passages 27, 28 within the head, the passages leading to spray-producing outlets such as 38, 100.
Patent GB-154165-A (GB)
Title: Improvements in and relating to apparatus for turning over sheets of glass and the like to facilitate working on both sides of the sheets
IPC: B65G49/06
Filed: 1920-01-26
Abstract: 154,165. Soc. Anon. des Manufactures des Glaces et Produits Chimiques de St. Gobain, Chauny et Cirey. Nov. 20, 1919, [Convention date]. Benches, work.-Relates to a frame for carrying sheets of glass &c. adapted to rotate about a horizontal axis to present either side of the sheets uppermost. As shown, the sides of the wooden frame a are mounted in channel irons g carried on trunnions h, about which the frame may be rotated bv double reduction gearing h'. The sheets are carried between upper and lower sets of cross pieces d, slidably supported on tubular bars b, carried at the ends of the frame. D-shaped stop pieces f are carried on vertical axes f<2>, and prevent longitudinal movement of the glass. The contacting edges of the stop pieces, and of the cross-pieces are felt lined. When working upon the sheets the upper cross-pieces are drawn aside.
Patent GB-336900-A (GB)
Title: Improvements in and relating to portable power-driven tools for performing drilling or similar operations
IPC: B23B45/14
Filed: 1930-01-24
Abstract: 336,900. Volet, R. A. L. Feb. 8, 1929, [Convention date]. Drilling-machines.-A stand for a portable drilling &c. machine comprises a pillar b attached to a base c and slidably supporting a bracket h which is normally raised by a spring g. The lower limb h<2> of the bracket is provided with a boss h<3> for receiving the cylindrical end a' of the portable electric or other drill a and the upper limb h<1> receives a slidable pointed plunger i normally pressed by a spring j into contact with a recess in the upper end of the drill. The plunger is connected by a pin i<2> to a slot d‹ in a lever d pivoted at e to an adjustable bracket f on the pillar. The lever d serves for feeding the drill and on being raised past its normal highest point releases the plunger from the drill and allows the latter to be removed readily from the bracket h.
Patent GB-175176-A (GB)
Title: Improvements in cases for powder puffs and the like
IPC: A45D33/00
Filed: 1921-01-19
Abstract: 175,176. Berkovi, L. Jan. 19,1921. Folding or knock-down cases.-A container for a powder puff, powder, and a sifter comprises a stiff base C, Fig. 1, and a stiff annular member A. so connected by material that they are capable of being pressed together bellows fashion to reduce the size of the container as the quantity of powder diminishes. A hinged cover BB, fitted with a mirror may be applied to the top member, or the material of the sides, or the lining, may be continued upwards to form a flexible closure provided with a draw string D, Fig. 2.
Patent GB-1245906-A (GB)
Title: Explosive shell
Inventor: ALBREKTSSON KJELL ALVAR
IPC: F42B12/20
Filed: 1970-01-19
Abstract: 1,245,906. Explosive shrapnel shells. BOFORS A.B. 19 Jan., 1970 [20 Jan., 1969], No. 2555/70. Heading F3A. An explosive shell for high speed rotation comprises preformed shrapnel material 8 positioned between an outer sleeve 7 and an inner sleeve 4 which is integral with the body 3 of the projectile and contains an explosive charge 9, the inner sleeve being dimensioned to transmit to a front portion 1 of the shell a portion of the axial forces generated by the propellant gases when the shell is fired, with the outer sleeve 7 transmitting the remaining portion of the axial forces to the front portion 1 whilst retaining the shrapnel material 8 until the charge 9 is exploded. The inner sleeve 4 has twice the thickness of the sleeve 7 and transmits the major portion of the axial forces. A ring 6 connects the inner and outer sleeves together. A copper driving band 3a rotates the shell at high speed when fired. The shrapnel material 8 comprises balls, cylinders or rings held together in a cylinder of plastics material.
Patent GB-524270-A (GB)
Title: Improvement relating to tractor wheels
IPC: B60B15/02
Filed: 1939-01-25
Abstract: 524,270. Vehicle wheels. GOULD, I. T. Jan. 25, 1939, No. 2576. [Class 144 (i)] A tractor wheel comprises a pair of spaced rims 7 of V-section which carry projecting strakes 8 and are secured by brackets 9 to a wheel-disc 4 having cutaway portions 5 for mud &c. clearance.
Patent GB-1357084-A (GB)
Title: Essences of fresh pot-herbs and process for preparing same
IPC: A23L27/10
Filed: 1973-01-18
Abstract: 1357084 Herb essence DRAGOCO GERBERDING & CO GmbH 18 Jan 1973 [24 Feb 1972] 2595/73 Heading A2B Frozen pot herbs are comminuted, pressed at a temperature no greater than a few degrees above the freezing point of water to express liquid therefrom and form a press cake, the press cake is treated with concentrated acetic acid, acetic-acid extract is expressed therefrom, and the expressed liquid and extract are combined to give a substantially sterile lasting pot-herb essence, which may be mixed with common salt, filtered through a sterile filter, emulsified together with hydrocolloids and an edible oil, and dried.