baber/WOPTO huggingface dataset:
Patent GB-553361-A (GB)
Title: Improvements electric spot welders
IPC: B23K11/31
Filed: 1942-08-20
Abstract: 553,361. Electric welding. BATEMAN, J. R. Aug. 20, 1942, No. 11727. [Class 83 (iv)] In a spot welder of the kind in which the electrodes are adjustably mounted in the ends of arms disposed in a vertical plane the upper arm of which is pivoted and operated by a pedal which also controls the welding switch, the transformer is so mounted within the casing as to permit the lower arm to extend in its inner position right across the space of the casing. The position of the arms may thus be adjusted for work of different sizes. The upper arm a is slidable in the arm f of a lever e, f, which is pivoted at k in a bearing m mounted on a slotted horizontal plate q and is operated by a pedal h through a rod i which also closes the switch g. The bearing m is provided with a slotted web to allow for the passage of the lower arm b which is adjustable horizontally and secured in adjusted position in a bearings. The bearing carries a flange r provided with bolts t movable in a pair of slots in the face w of the casing so that the arm may also be vertically adjusted, the face w being also slotted to allow movement of the bearing s therein. The transformer o is placed horizontally and is mounted on pillars p secured to the horizontal plate q. The contactor and contact panels are spaced apart in the casing sufficiently to permit vertical adjustment of the arm b.
Patent GB-266940-A (GB)
Title: The manufacture of new acid sulphuric acid esters of oxy-alkyl compounds of the aromatic series
IPC: C07C305/10
Filed: 1926-05-04
Abstract: 266,940. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). May 4, 1926. Acid sulphuric esters of aromatic oxyalkylethers are made by treating oxyalkylethers of phenols, naphthols, oxyanthracenes or their derivatives with a sulphonating agent, e.g. concentrated sulphuric acid or chlorsulphonic acid. In examples (1) the oxyethylether of m-nitro-pcresol is treated with sulphuric acid, and the potassium salt of the ester is obtained by salting out with potassium chloride: the corresponding amino compound may be obtained by reducing the nitro group, (2) #-naphthylethylene glycol is treated with sulphuric acid and the product salted out with sodium chloride: (3) 1-anthracylethylene glycol is similarly treated, and (4) onaphthyl glycerolether is treated with sulphuric acid, the solution obtained is neutralized with chalk and filtered, and the filtrate is treated with sodium carbonate to yield the sodium salt of the sulphuric ester. Oxyalkylphenol ethers are obtained by condensing salts of phenols with halogenhydrins. In examples, m-nitro-p-cresol, and 1-oxyanthracene are converted into the oxyethylethers by heating with caustic soda solution and ethylene chlorhydrin. Azo dyes.-The above acid sulphuric esters are used as intermediate products in; the production of azo dyes, particularly for dyeing artificial silk. In examples, the acid sulphuric ester obtained from m-amino-p-cresol-oxyethylether is diazotized and coupled with #-naphthol, to produce a bluish-red dyestuff, or is coupled with diazotized p-nitraniline to produce a yellowish-red dyestuff suitable for dyeing acetate silk.
Patent GB-402992-A (GB)
Title: Aeroplane with rotatable wings
IPC: B64C23/02
Filed: 1933-04-21
Abstract: 402,992. Supporting and controlling aircraft. CHAPPEDELAINE, J. L. M. O. DE, 51, Rue Chardon Lagache, Paris. April 21, 1933, No. 11744. Convention date, Jan. 28. [Class 4.] An aircraft fitted with wings of symmetrical or asymmetrical aerofoil section rotating about a transverse axis has means for fixing them against rotation for gliding flight and for adjusting them to different angles for lateral balancing. For balancing the machine when the wings are rotating the relative rate of rotation of the wings on the two sides of the machine may be varied by brakes. Alternatively ailerons may be used on a fixed wing below which the rotary wings are supported. The shaft 3 of the rotary wing 4 carries a disc 21 against which a disc 17 is adapted to be pressed when it is desired to retard the movement. The disc 17 is splined to a sleeve 7 mounted on a sleeve 1 fixed to a support 5, the sleeve 7 having an arm 9 normally kept in mid position by springs but capable of being moved by the pilot. The disc 17 is normally held out of contact with the disc 21 by springs 20 but when a disc 12, also splined to the sleeve 7, is moved by a forked lever 25, springs 18 press the discs into contact. Further pressure forces pins 13, 14 through holes in the disc 17 into recesses in the disc 21 to fix the rotating plane in a definite position. The spline grooves on the sleeve 7 are helical so as to start the rotation of the wing 4 in the right direction when the brake is withdrawn. The wings may be driven from the main engine through a freewheel clutch. The rotating wings may be mounted in openings in fixed wings. When the lever 9 is moved a projection 31 engaging a cam groove in the disc 12 causes the brake to be applied to the rotating wing.
Patent GB-248213-A (GB)
Title: Improvements in feed mechanism for sheets, papers, or flat articles
IPC: B65H3/08
Filed: 1925-05-06
Abstract: 248,213. Marks, E. C. R., (Nonpareil Machine Co.). May 6, 1925. Sheet-separating devices ; pile supports ; sheet-carriers, - In connection with mechanism for feeding papers, paper sections, and the like from piles, means are provided for holding back all the sheets &c. except a few of the endmost sheets, while the endmost sheet is separated from the pile A by means such as an oscillating suction separator 5 co-operating with a segmental forwarding-roller 8 and a feed roller 9, the sheet being discharged by rollers 11, 12. The bottom of the pile is normally engaged by fingers 13, which hold the folded ends of the papers in position, and are swung to the position shown in Fig. 2 to release the sheets when the sucker 5 comes into operation. The oscillating shaft 28 on which the fingers 13 are mounted, is connected to a shaft 24 fitted with a slotted arm 21 engaging a pin 23 on a slide 16 fitted with pins 14 adapted to be forced into the pile to support all but a few of the sheets while the bottom sheet is being separated. The pins 14 are adjustably mounted so that the number of sheets which are between them and the sucker can be varied. The sheets below the pins 14 are supported by pivoted clips 17, Fig. 6, controlled by springs 31 secured to blocks 33 and held by pins 34. As applied to stacks in which the sheets rest on their edges, the clips 17 are dispensed with.
Patent GB-332229-A (GB)
Title: Improvements in or relating to heating devices for buildings
IPC: F24D5/00
Filed: 1929-04-16
Abstract: 332,229. Barker, A. H. April 16, 1929. Heating buildings.-In heating systems comprising radiator elements traversed by the combustion products from gas burners, the combustible gas and the secondary air for supporting combustion are admitted separately to the burners under pressure at or above that of the atmosphere and are caused to intermix at the ignition point. The burners H are supplied with combustible gas and air under pressure through pipes E and F respectively provided with automatic pressure regulating devices D, D. Primary air may be supplied to the gas by the cross connecting pipe G. The burner comprises a tubular member h communicating with the gas supply pipe E through lateral openings h<x> and an outer duct I supplied with secondary air through pipes F, the two supplies intermixing at the place of ignition. The gas supply is controlled by a needle valve h<2>; the secondary air supply by the orifice i which is varied by the retarding or advancing of the tube h. The pilot flame K impinges on a bimetallic strip l so that when it is extinguished the flexing of the strip causes a valve L to cut off the flow of gas. The system may include various types of heating devices N<1>, N<2>, N<3>, N<4>, the hot gaseous products from the burners entering by trumpet mouths M. The exhaust outlets n<5>, preferably detachable, discharge directly into the open air or into a vertical draught inducing pipe. A bye-pass branch F<1> of the secondary air supply pipe may discharge into an ejector F<2>, to increase the draught. The secondary air blast may pass wholly to the ejector so as to induce a flow of atmospheric secondary air to the burner nozzle.
Patent GB-640224-A (GB)
Title: Improvements in or relating to parachutes
IPC: B64D17/38
Filed: 1946-04-17
Abstract: 640,224. Parachutes. FRIEDER, L. P. April 17, 1946, No. 11841. Convention date, Aug. 20, 1943. [Class 4] Parachutes are opened by a single cord connected at one end to an aeroplane carrying the parachute and directly connected at the other end to one point only of the outer edge of the canopy, the cord being constructed so as to break under'the strain produced by the opening of the canopy and the weight of the load. The static cord 14 is shown as connected to the hem-cord 13 of the multi-ply hem of a canopy constructed as described in Specification 582,365. The static cord 14 has a weakened section 15, which may be a length of smaller cord connected between the cut ends of a hollow-centre cord 14. For discharging a series of parachutes connecting cords are provided between consecutive parachutes (or their loads), the hem of the last parachute being connected to the plane as already described. The parachutes may be packed in containers or chute packs; or folded up in the load and bound by a breakable or releasable cord.
Patent GB-116608-A (GB)
Title: Improvements in or relating to Internal Combustion Engines.
IPC: F02B57/10
Filed: 1917-08-17
Abstract: 116,608. Centrum Syndicate, and Tacchi, P. G. Aug. 17, 1917. Valve-gear.-In a two-stroke-cycle rotating- cylinder engine having a stationary cam track F, a pair of oppositely-moving pistons reciprocates in a cylinder B and compresses combustible mixture in the ends of the cylinder and in an outer casing E having a mechanically actuated inlet valve at h<3>. A supplementary cam track, (not shown), holds the piston in contact with the driving-cam which has concentric portions at f<1> and portions f<3>, f<4> which are each struck from a different radius. Combustible mixture is admitted to the cylinder from the pump space either through automatic valves, or through valves G actuated by the main cam. Terminal exhaust ports in the cylinders coincide, at intervals, with ports e in the stationary casing E.
Patent GB-1478274-A (GB)
Title: Sample combustion system
IPC: G01N33/20
Filed: 1975-03-21
Abstract: 1478274 Sample combustion for analysis; infrared gas analyzers LECO CORP 21 March 1975 [21 Nov 1974] 11917/75 Headings G1A and G1B A sample combustion system comprises Fig. 1, a gas flow loop 20 which includes a combustion chamber forming part of a sample combustion furnace, means arranged to circulate gas around the loop and means to introduce a carrier gas into the loop. The loop may also include a detector 50 which may be an I.R. detector arranged to determine SO 2 , CO and CO 2  or alternatively the gas flow in the loop can be sampled through septum 65 and the sample analyzed in a separate detector. The sample combination zone may include induction type furnace 25 enclosing crucible 30 for specimen 32, the combustion chamber 27 having sealable access means for insertion and removal of crucibles &c. and a gas inlet line having a downwardly directed nozzle 29. The specimen may be a steel sample. In use of the system for combusting and analyzing a non gaseous sample, the sample is placed in the combustion chamber, an oxidizing gas is introduced into the loop, the sample is combusted and simultaneously the gas is circulated round the loop, the circulation being continued after completion of combustion, and the concentration of a component in the loop is measured. Infrared detector cell 50' Fig. 2, may be an axial type cell comprising a cylindrical chamber having at opposite ends spherical mirrors 53', 55' of equal focal lengths arranged to provide nine passes of radiation therebetween, each mirror having a calcium fluoride window at its centre. A broad band infrared generator 70 comprises a nichrome wire coil coupled to be heated to 900C, the radiation being chopped at 75 Hz by rotating chopper disc 72. Transmission-type filters 76, 77, 78 pass respectively 7À3 micron radiation, for SO 2  determination, 4À6 micron radiation, for CO determination, and 2À7 micron radiation, for CO 2  determination. Pyroelectric detectors 86, 87, 88 are coupled to control and read-out circuit 90.
Patent GB-760622-A (GB)
Title: Improvements in or relating to apparatus for connecting one pipe line with another
IPC: F16L41/06
Filed: 1954-04-26
Abstract: 760,622. Portable drilling-and-turning apparatus. FOPPEN, G. April 26, 1954, No. 12006/54. Class 83 (3). [Also in Group XXVIII] A connecting-piece 2, for connecting a main pipe 1 to a branch-pipe, has a guide-surface 9 whereby, after connecting the end 2<SP>1</SP> to the pipe 1, e.g. by welding at 3, and the arm 4 to the branch-pipe, a drill 13 may be inserted in sealed relationship to the surface 9 to pierce the wall of the pipe 1. The drill 13, which may be hollow to receive the drillings, is sealed in the limb 9 by a rubber ring 15 compressed by a sleeve 16, and the drill is rotated by a ratchet-wrench, engaged at 19, and fed by a screw 22 in a clamp 21 screwed to a member 10 attached to the connecting-piece 2. After the drill is removed, a turning-device 31 with a rubber sealing-ring 32 is inserted to true the seating surfaces or seats 7, 8, to be engaged subsequently by sealing and stopping pins. The device 31 has two cutting- edges 29, 37, of diameters corresponding to the seats 7, 8, and has grooves 30 to receive the cuttings. A hole 40 at each end serves for fixing a sleeve 42 thereto, having a bayonet slot 43 for engagement by a handle to rotate the tool 31. In a modification, Fig. 7, a spring- loaded valve 112, which is pushed aside by the drill 110 or turning device automatically closes the limb 9 of the connecting-piece to prevent escape of fluid when the drill or truing device is withdrawn. The connecting-piece 2 may be attached to the main 1 by, a saddle and U-bolt.
Patent GB-623610-A (GB)
Title: Improvements in or relating to alternating current arc welding systems
IPC: B23K9/067
Filed: 1947-05-05
Abstract: 623,610. Supply systems for welding arcs. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 5, 1947, No. 12068. Convention date, May 7, 1946. [Class 38 (iv)] In an alternating current are welding system including means for supplying pulses of highfrequency current to the welding circuit for stabilizing the arc, and particularly a system using a bare tungsten welding electrode operating in an atmosphere of argon or helium, the periods of ionization produced by the highfrequency pulses are prolonged by connecting across the welding circuit a condenser in series with a resistor of a value sufficient to render non-oscillatory the discharge of the condenser in response to a high-frequency pulse, but insufficient appreciably to damp the charging current. The capacity of the condenser may be from 5 to 50 microfarads and the resistor 10 to 2 ohms. As shown in Fig. 1, a welding circuit 13 fed from a low-frequency source 12 through a transformer 11 and choke 16, is also energized by high-frequency pulses through a shunt circuit 24, 25 coupled to a high-frequency generator 18 of the spark-gap type. To prolong the periods of ionization produced at the welding electrode 27 by the high-frequency pulses, a condenser 31 in series with a damping resistor 32 and a choke 34 (for preventing a short-circuit of the high-frequency generator) is connected across the welding circuit. Series, instead of shunt, injection of the high-frequency pulses into the welding circuit may also be employed, in which case the choke 34 is unnecessary. Fig. 3 shows such an arrangement which also includes a switching system 53-55 operating in conjunction with chokes 49, 50 and two secondary windings on the welding transformer 45 to provide two different welding voltages. A condenser 57 equalizes the injected high-frequency voltages in the two switch positions. An arrangement utilizing a vacuum tube oscillator as high-frequency generator is also described.
Patent GB-206176-A (GB)
Title: Improvements in or relating to the manufacture of boots or shoes
IPC: A43D11/00
Filed: 1922-05-01
Abstract: 206,176. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Corporation). May 1, 1922. Drawings to Specification. Sewing-machines; work guides.-Parts of a boot or shoe to be sewn together are provided with jig holes co-operating with jig pins on the work carrier of the sewing machine for correctly locating the parts. Specifications 2453/88, 18738/97, and 10595/06, [all in Class 17, Boots &c.], 104,068, [Class 17 (ii), Boots and shoes, Construction of], and 205,839, [Class 17 (i), Boots and shoes. Apparatus for making &c.], are referred to.
Patent GB-719340-A (GB)
Title: Organic derivatives of titanium
Inventor: BOYD THOMAS
IPC: C08K5/09
Filed: 1952-05-14
Abstract: A mixed anhydride of a carboxylic acid and orthotitanic acid is prepared by heating titanium disulphide with at least four molecular equivalents of a carboxylic acid or a carboxylic acid anhydride under substantially anhydrous conditions.  When a polycarboxylic acid, a polycarboxylic anhydride or an acid containing alcoholic or phenolic hydroxyl groups is employed, the proportion of titanium disulphide required depends upon the number of reactive groups present.  The reaction may be carried out at a temperature of from 40 DEG  to 100 DEG  C.  Inert anhydrous reaction solvents can be used in the above reaction, e.g. a hydrocarbon or a halogenated hydrocarbon such as xylene, benzene, solvent naphtha or carbon tetrachloride.  The carboxylic acid may be a mono- or poly-carboxylic acid, and may be substituted in the organo residue, e.g. by chlorine, bromine, fluorine or iodine or by nitro groups.  The carboxylic acid may also contain alcoholic or phenolic hydroxyl groups.  The carboxylic acids may contain straight or branched chains, or carbocyclic or heterocyclic rings. The following carboxylic acids are referred to: acetic, propionic, butyric, isobutyric, valeric, lauric, stearic, phthalic, tricarballylic, malonic, succinic, glutaric, suberic, mellitic, acrylic, methacrylic, crotonic, atropic, maleic, fumaric, citraconic, aconitic, tiglic, oleic, elaidic, behenic, propiolic, benzoic, naphthoic, toluic, monochloroacetic, trichloroacetic, lactic, salicyclic, 2-nitrobutyric, campholic, camphoric, pyromucic, picolinic and 2-quinolinic acids, and thiophene-2-carboxylic acid. In the examples, mixed anhydrides of orthotitanic acid with acetic acid, phthalic acid and lactic acid are prepared.
Patent GB-1024413-A (GB)
Title: Improvements in or relating to parachute packs
Inventor: GLADSTONE DEREK MICHAEL
IPC: B64D17/52
Filed: 1964-03-23
Abstract: 1,024,413. Parachute packs. IRVING AIR CHUTE OF GREAT BRITAIN Ltd. March 2, 1965 [March 23, 1964], No. 12205/64. Heading B7G. A parachute pack has a wall panel unit including a stiff insert 27 normally folded as shown, and which may be unfolded to increase the circumference of the pack to facilitate the release of the parachute. The panel unit may form part of the wall (Figs. 1-3, not shown), or may be attached thereto by loops 30, 31, the wall 20 then being split. The fold is maintained by loops 28, 29 through which a lace or pin is inserted, or by putting the pack into a rigid compartment too small to allow the panel. to unfold. Before the parachute is deployed, the lace or pin is removed, or the pack removed from the rigid compartment to allow the panel to unfold when the wall 20 is split, as shown. The panel may be parallel-sided, or may taper.
Patent GB-583072-A (GB)
Title: Assorting machine
IPC: B07C5/06
Filed: 1944-06-27
Abstract: 583,072. Assorting-machines. SHUMAN, M. June 27, 1944, No. 12210. [Class 106 (ii)] An assorting-machine for screws and the like in which the screws are firstly assorted according to head diameter, secondly according to head height and thirdly according to shank length. The'screws are placed into a hopper 1, Fig. 1, and pass singly along a shoot 2 into guide 3 wherein they are carried by diverging rotating shafts 4 and 5. The screws slowly advance along the shafts and drop through the space between them into various hoppers as soon as that space becomes wider than the diameter of the screw head. From the hoppers 6 they pass down shoots 8 into the notches 9 of a corresponding series of belts 10, 11, 12 mounted on pulleys 13 and 14. Each of these belts pass through a row of six casings, in which perforations are provided to allow passage of the screws. In the first three of these casings the screws are assorted according to height of head by means of dislodging members 37 mounted on rotating shafts 33, 34, 35 situated above the belts (see Fig. 4). In the next three casings the screws are separatedaccording to shank length by means of dislodging members 27 mounted on rotating shafts 23, 24, 25 situated below the belts. The screws that are dislodged in the first three casings are returned to hoppers 6 to pass again on to the continuously moving belts, the shafts 33, 34, 35 are stopped and the screws are sorted according to shank length. Connections for rotating the various shafts comprise an electric - motor 40 driving a shaft 41 on which is mounted a worm 42 engaging a worm-wheel 43 to rotate shaft 16 and the pulleys 13, 14. Spiral gearing 44, 45 rotates shaft 46 which, in turn, rotates shafts 23, 24, 25 by means of bevels thereby driving the screw dislodging members 27. Similarly, the members 37 are rotated from a shaft 54 attached to shaft 41 by means of clutch members 55, 56. The clutch members 55, 56 can be disconnected when it is desired to stop the shafts 33, 34, 35. Figs. 5 and 6 (not shown) illustrate a modified dislodging means in which a series of rotating discs are used.
Patent GB-952286-A (GB)
Title: Process for the production of zinc
IPC: C22B19/04
Filed: 1962-03-30
Abstract: Zinc with or without up to 10%, preferably 0.01-1.0% of Al, up to 5% Cu and/or up to 1% of Ca and Mg, has Pb removed by the addition of up to 5% of Na and/or K to a melt at 500  DEG C., cooling the melt to 430  DEG C. and removing the lead rich phase.  In the example the lead content is reduced from 1.11 to 0.5 by the addition of 0.6% of sodium.