baber/WOPTO huggingface dataset:
Patent GB-952174-A (GB)
Title: Process for the manufacture of sulpha-methylpyrimidine
Inventor: WESCHE HANS
IPC: C07D239/69
Filed: 1960-03-22
Abstract: Sulpha-methyl pyrimidine or an alkali metal salt thereof, is prepared by decomposing with ice-water a suspension of the complex compound of 2,2-dichlorobutanone-2 and aluminium chloride in a halogenated hydrocarbon which does not react with acetyl chloride, vinyl chloride or the dichlorobutanone, but is capable of dissolving the latter and is sparingly soluble in water, separating the resulting solution of dichlorobutanone and halogenated hydrocarbon and subjecting it to a continuous distillation in a thin-film evaporator to separate the solution into the dichlorobutanone and halogenated hydrocarbon and then condensing the dichlorobutanone with sulpha-guanidine in an alcoholic solution of an alkali-metal alcoholate, the free sulpha-methyl pyrimidine being obtained on acidifying the product. The continuous distillation is preferably effected under reduced pressure and the recovered dichlorobutanone may be fed continuously or dis-continuously into the suspension of sulpha-guanidine, which is desirably maintained under the same reduced pressure. The halogenated hydrocarbon may be carbon tetrachloride, methylene chloride, tri- or tetrachlor ethane or chlorobenzene.  Suitable forms of apparatus are described (see Division B1).  An example is given in which the initially required dichlorobutanone-AlCl3 complex is obtained by reacting acetyl chloride with vinyl chloride in a suspension of aluminium chloride in CCl4.
Patent GB-550757-A (GB)
Title: Improvements in the manufacture of detergents
IPC: C11D17/00
Filed: 1941-08-12
Abstract: 550,757. Detergents. LEVER BROS. and UNILEVER, Ltd. Aug. 12, 1941, No. 10234. Convention date, Aug. 14, 1940. [Class 91] A non-soapy detergent is produced in bar or cake form from a mass of the detergent free from material proportions of inorganic salts by thoroughly working and agitating the mass at a temperature at which it is plastic or semi-fluid and thereafter forming the mass into bars or cakes. The proportion of inorganic salts in the resulting bar or cake is less than 15 per cent. The detergent mass may contain a proportion of soap, such as coconut oil soap, the proportion being as high as 70 per cent. in some compositions. The groups of non-soapy detergents specified comprise the products known under the Registered Trade Mark "Gardinol," i.e. sulphated higher fatty alcohols such as the sodium salt of lauryl sulphate ; the products known under the Registered Trade Mark "Igepon" such as the fatty acid esters of hydroxy-ethane sulphonic acid ; and the sulphocarboxylic acid esters of alcohol amines. The detergent mass is preferably worked at temperatures between 100 and 200 F., the mass being heated prior or during the mixing operation. The latter is conducted in a chamber closed to the atmosphere, batch or continuous working being used. Suitable apparatus are described in U.S.A. Specifications 1,200,070 and 2.048,286. The mass may be aerated by a compatible gas, such as air, during this operation, sufficient being introduced if desired to produce a floating product. Pressure working is preferred, particularly when aerating, pressures up to about 100 lbs. per square inch, suitably 25 lbs. per square inch, being used. The moisture content of the mass may vary but usually 10-20 per cent is satisfactory. When the mass is completely mixed, it is released or discharged by extrusion into a mould or form-imparting means where it may be cooled and solidified while retaining its continuous structure.
Patent GB-590870-A (GB)
Title: Improvements relating to snap action electric switches
IPC: H01H13/36
Filed: 1945-04-24
Abstract: 590,870. Press-button retractive switches; snap- .action switches. JENNINGS, H. W. K., (First Industrial Corporation). April 24, 1945, No. 10310. [Class 38 (v)] A snap-action switch comprises an anchor 16 secured to the switch base 10, an actuating arm 24 pivoted to the anchor, a leaf-spring 20 in tension and a compression spring 22, one of these springs being supported at one end on the arm 24 and co-operating with the other spring to produce the snap-action. In the Figure, the springs 20, 22, are joined together at their right hand ends and carry a contact 36 co-operating with a fixed contact 38. The left hand ends of springs 20, 22, are attached to the anchor 16 and a shoulder 24a on the arm 24 respectively. A spring 26 normally biasses the arm 24 counterclockwise, as shown, to close the contacts, but when a button 46 is depressed, arm 24 rotates clockwise and moves the left hand end of spring 22 across the centre line of spring 20 to open the contacts with a snap-action. On release of the button, the contacts reclose. Adjustable screws 32, 42, limit the upward movement of the arm 24 and contact 36 respectively. A magnet 44 extinguishes any arcs that may form. The insulating casing 10, 12, has a protective metal housing 13.
Patent GB-568333-A (GB)
Title: Device for testing the hardness or firmness of the ground, or for like purposes
IPC: E02D1/02
Filed: 1943-06-25
Abstract: 568,333. Testing hardness of the ground. CAMPBELL, SIR M. June 25, 1943, No. 10339. [Class 106 (ii)] A device for testing the hardness or firmness of the ground consists of a tube 10 from which a plunger 28, 32 is protruded by springs 50 to force a head 36 into the ground. In use, the device is set up vertically with a plate 12 secured to the tube 10 resting on the ground and is held in position by the operator standing on stirrups 16, 18 after these have been moved to the extended positions, Fig. 1. A projection of the plunger 32 extends through a slot 24 in the tube 10 and is attached to side members carrying handles 72, 74 by means of which the plunger is drawn to the top of the tube, the springs 50 thus being compressed. The plunger is maintained in this position by the engagement of a pawl 64 on the plunger with ratchet teeth on a bar 52 fixed to the tube 10. The plunger is released by turning a handle 43 secured to a rod 40 having a flattened part on which bears a pin 70, the pin thus being raised to move the pawl 64 from engagement with the ratchet teeth. The extent of penetration is shown by an index 63 carried by the plunger 32 and indicating against a scale 65 on the bar 52. Tools 94 and an oil can are carried in a tube forming part of the handle 48.
Patent GB-850959-A (GB)
Title: Improvements in or relating to lubricants for use in the hot deformation of metals
IPC: B21C23/32
Filed: 1958-04-01
Abstract: A lubricant for use in the hot deformation of metals or alloys, and particularly in the hot extrusion of metals or alloys, comprises an anhydrous suspension of sugar and graphite in a mineral or vegetable oil or a fat.  The metal may be coated with the lubricant just before engaging the extrusion die plate.  The vegetable oil may be groundnut, linseed or palm oil, while the fat may be horse, beef or pork fat.  In the examples, the preparation is described of suspensions in mineral, groundnut or linseed oil of cane or beet sugar and flake graphite, with or without colloidal graphite.
Patent GB-657975-A (GB)
Title: Improvements in or relating to the tuning device of a radio apparatus or a similar apparatus
IPC: H03J1/14
Filed: 1949-04-20
Abstract: 657,975. Adjusting radio apparatus. HOLSTENSSON, A. H. April 20, 1949, Nos. 10466 and 10467. Convention dates, April 23, 1948. [Class 40 (v)] [Also in Group XXIV] A two-speed drive between a hand-knob 10, provided with a flywheel 9, and a spindle 30 of a radio-tuning capacitor, comprises a direct-reduced planetary friction train driving a first intermediate spindle 8, which drives a second intermediate spindle 26 through a friction reducing-gear 24, 25, so that in either condition of the planet-train both the driving flywheel 9 and the reduction ratio of the friction-gear 24, 25 are always effective. The second intermediate spindle 26 drives the condenser-spindle 30 through a cord-pulley reducing-gear 27, 29, 28. The planet-gear comprises a planet-spindle carrying stepped planets 20, 22, Fig. 4, frictionally engaging respectively a sun 19 on the driving-knob spindle 7 and a larger sun 23 on the aligned first intermediate spindle 8, the end of which latter is formed as the friction wheel 24 of the second reductionstage 24, 25. The planet-carrier is formed of plates 11, 12, 13, 14, centred on the aligned spindles 7, 8 and axially spaced by three distance-rods 16, any one of which is adapted to be held by engagement with a notch 46, Fig. 1, in a stop.-plate 45 which is pivoted into or out of engagement for reduced or direct drive by an independent hand-knob 43, Fig. 2, an over-centre spring 49 being provided to hold the stop-plate in both positions. In the free-position, the friction of the sun and planet wheels 19 ... 23 is sufficient to overcome load resistance to produce solid drive in the planet-section of the gear. The Specification as open to inspection under Sect. 91 refers to Swedish Specification 86,183. This reference does not appear in the Specification as accepted.
Patent GB-410309-A (GB)
Title: Machine for universally milling, grinding and drilling workpieces of all kinds
IPC: B23C3/20
Filed: 1933-04-07
Abstract: 410,309. Combination milling, drilling, and grinding machines. KOLSCH, R., 24, Erbprinzenstrasse, Pforzheim, Germany. April 7, 1933, No. 10469. Convention date, April 7, 1932. [Class 83 (iii).] In a machine for milling, grinding, or drilling particularly for making dies, punches, matrices, or the like, a chuck 10 carrying the work piece 11 is mounted on a compound slide 8, 8<a> supported on a rotatable main shaft 2 while the tool 16 is mounted on a second compound slide 30 and is angularly adjustable in a horizontal plane about a pivot bolt 34. The main shaft 2, which is provided with a dividing disc 5 may be turned either by a hand wheel 3 or by a drop-worm 13 operated by hand gearing 14, 15. The outer carriage 8<a> of the compound work-slide carries a dividing- device 9 connected with the chuck 10. The tool is mounted on a spindle 17 in a head 18 and is driven from a motor 19 through a belt which is tensioned by a weight 28 and passes over a pair of upper pulleys 21 mounted on a bar 23 slidable in a pivoted frame 24. The other end of the bar 23 carries a pair of pulleys 21<a> mounted in a carrier movable about a horizontal'axis and serving to guide the belt to pulleys 22 on the tool spindle. In order to permit movement of the tool slide without unshipping the belt a bar 26 pivoted to the tool slide is slidably connected to the pulley carrier 25. The tool may also be driven by a motor either directly mounted on the tool-head, Fig. 9, or connected to the tool spindle by a flexible shaft. The compound tool slide includes a dividing device 31. By means of the slide 8, 8<a> the work piece may be adjusted so that its axis either coincides with or is eccentric to the axis of the main shaft 2 and any desired division either concentric with the work axis or eccentric thereto may be effected by means of one or other of the dividing devices 5, 9. Similarly arcuate cuts of any desired radius may be made on the work. An example is given in the Specification of the milling of a punch of the profile shown in Fig. 14 the dividing device 9 being used for the angular adjustments of the workpiece between the milling of successive sides thereof and the work being rotated around the axis of the shaft 2 to produce the arcuate portions IV, V. If the punch is to be formed with bevelled top edges the milling tool is set over to the required angle. Scales 32 are provided to indicate the movements of the slides 8 and 30 and the strokes of these slides may be limited by abutments such as 33. By arranging the tool head to be angularly adjustable around the bolt 34, the slide 30 may be employed for feeding the tool parallel to the mainshaft while the tool spindle is inclined to the line of feed.
Patent GB-527314-A (GB)
Title: Improvements in or relating to the pasteurisation and sterilisation of bottled goods and materials for use therein
IPC: C11D11/00
Filed: 1939-04-04
Abstract: 527,314. Preventing corrosion. CROWTHER, H. A. H. April 4, 1939, No. 10483. [Class 123 (i)] In the pasteurizing or sterilizing of bottled goods such as beer and milk by spraying with or immersion in water of varying temperatures, the corrosion of the metal parts of the plant such as carriers and chains in contact with the water by means of yeast, bacteria &c. produced therein, is prevented by the addition to the water of an alkaline composition including a substance which produces a protective film on the metal parts. Tannic acid or a tannate, in the presence of caustic soda, may be used to produce a film of iron tannate on the iron parts. The composition may also include bleaching powder or a hypochlorite for disinfection purposes, the chlorine being stabilized by adding ammonium sulphate. In addition, alkalies may be present and caustic soda, sodium silicate, tri-sodium phosphate and sodium hexametaphosphate are specified; the acidity of the liquid is thereby neutralized and the water also softened. Also, fatty matter from milk &c. is emulsified by the phosphate. The composition may contain starch to facilitate making the mixture into a paste. A specified example comprises tannic acid, 4 per cent. ; bleaching powder, 2 per cent. ; (NH 4 ) 2  SO 4 , 2 per cent.; NaOH, 20 per cent.; Na 2  Si O 3 , 10 per cent.; Na 3  PO 4 , 5 per cent. ; sodium hexametaphosphate, 2 per cent.; starch, 1 per cent.; water, 54 per cent. ; and is used in the proportion of 1 pound per 1,000 gallons of water.
Patent GB-1134310-A (GB)
Title: Hull form for ships
Inventor: GALLIN CONSTANTIN
IPC: B63B1/06
Filed: 1967-03-07
Abstract: 1,134,310. Hull form. BLOHM & VOSS A.G. 7 March, 1967, No. 10658/67. Heading B7A. A hull form for ships of all kinds excluding low speed vessels such as dredgers, floating cranes and pontoons, consists exclusively or mainly of flat plates providing surfaces having three or more straight edges and the angle between two abutting surfaces seen from the inside of the ship and measured in the plane determined (a) by the intersection point of the abutting edges of said surfaces with the flow stream at the design speed, (b) by the tangent to the flow stream at the intersection point, (c) by a line perpendicular to the said abutting edges at the intersection point, lies between 150 and 180 degrees and does not exceed 120 degrees at the end of the flow stream.
Patent GB-623265-A (GB)
Title: Improvements in or relating to tobacco cartridge
IPC: A24D1/14
Filed: 1947-04-22
Abstract: A tobacco-pipe cartridge comprises a charge of tobacco completely enclosed in an envelope of a pervious fabric of spun glass.  The envelope may be formed from tubular fabric tied or fused together at both ends after filling with tobacco or of a bag closed at the top. The Specification as open to inspection under Sect. 91 comprises also an envelope of spun quartz.  This subject-matter does not appear in the Specification as accepted.
Patent GB-555143-A (GB)
Title: Improvements in or relating to photographic shutters
IPC: G03B9/20
Filed: 1942-07-31
Abstract: 555,143. Photographic shutters. KODAK, Ltd. July 31, 1942, No. 10768. Convention date, Sept. 6, 1941. [Class 98 (i)] The blade ring of a multiple-blade photographic shutter is operated by a prime mover comprising a Geneva driver tensioned by a spring between it and a winding member and so located in this condition that upon its release by the shutter trigger it is substantially accelerated by the spring before engaging a Geneva driver member connected to the blade ring. As shown, the shutter blades 5, which make a single revolution at each exposure, are operated by a gear ring 8 engaging pinions 7 on the shafts carrying the blades. The gear ring 8 forms part of a Geneva driven member 9 operated by a driver 12 carried on a plate 13 extending radially from a disc 14 which engages one of the curved surfaces 11 of the member 9 to lock it except during its operation by the member 9, when a cut-away portion of the disc allows it to be moved one step. The driver 12 is actuated by a spring 38, which is wound by a knob 16. To limit the setting movement of the knob to a single turn a pin 27 which is carried by an arm 26 on a sleeve 25 secured to the Geneva driven member forms a stop which is engaged by a pin 28 on the knob. Fig. 1 shows the parts after an exposure ; in re-setting the shutter the knob is rotated anti-clockwise, the stop 27 following the pin 28 until a lug 30 on a plate 24 secured to the Geneva driving member is engaged by a lug 42 on the pivoted release member 32, Fig. 7, so holding it and the stop 27 against further rotation. Further movement of the knob finally causes the pin 28 to engage the other side of the stop. A ratchet device prevents return movement of the knob. On movement of the release arm 32 the Geneva driving member is released and moves anticlockwise through approximately 100 degrees before the driver 12 engages a slot in the driven member 9. After the exposure the parts are again in the position shown in Fig. 1. The lug 42 prevents operation of the release arm 32 by engaging a flange 40 on the knob during winding of the shutter, but may pass into a slot 41 in the flange when the shutter is fully wound. Specification 555,144 is referred to.
Patent GB-373723-A (GB)
Title: Improvements in cores for electric dry batteries and the like
IPC: H01M4/10
Filed: 1931-04-13
Abstract: 373,723. Galvanic batteries. AUTOM SPEZIAL-MASCHINEN GES., 5, Biilowstrasse, Berlin.-(Assignees of Bumke Ges., H. A. ; 8, Chausseestrasse, Berlin.) April 13, 1931, No. 10817. Convention date, Feb. 24. [Class 53.] Dollies for dry batteries are provided with wrappings of material permeable to the electrolyte, the wrapping of each core being held in place by adhesive means applied only over the outer or exposed longitudinal edge of the wrapping on the lateral surface of each core, and consisting of the same heat liquefiable substance as an insulating centring cap applied to or formed on the lower end of said core. The adhesive means is advantageously a single strip forming a direct continuation of the centring cap. Preferably the wrapping material 3 is only applied about the lateral surface of the core, and is held by a pair of insulating caps 8, 10 of a heat liquefiable substance provided on the uncovered ends of the core and attached to the upper and lower peripheral edges of the wrapping ; the adhesive strip 9 on the longitudinal edge of the wrapping extends between the said caps.
Patent GB-144842-A (GB)
Title: Improvements in means to be employed in the electric welding of iron, or steel, or alloys thereof
IPC: B23K35/04
Filed: 1919-05-01
Abstract: 144,842. Hyde, A. C. May 1, 1919. Heating by electricity.-Electric welding-wires &c. of iron, steel, or alloy thereof, are provided with a coating of flux consisting of a mixture of materials of a vitrifiable character, by dipping into a flux paste and then drying and heating to a temperature between 700 and 900‹ C., so that one of the constituents is melted and the mixture is closely adherent to the wire &c., but at the welding temperature a slag is formed which does not adhere to the welded iron &c. and can be thus easily removed therefrom. The flux, which has a coefficient of expansion approximate to that of the electrode, may consist of a mixture of anhydrous soluble silicate of soda and asbestos, both in powdered form and preferably in the proportions of from 10 to 20 per cent of silicate of soda and 90 to 80 per cent of asbestos. The mixture is made into a paste with hot water or other liquid, and the wires, after they have been dipped in the paste, are dried and then heated to a temperature between 700 and 900‹ C., to fuse the silicate of soda and form a semi-vitreous mass adherent to the iron &c. core. When welding, the flux is completely fused by the electric arc, the slag formed having a different coefficient of expansion and being easily detachable. The thickness of coating may be varied by increasing the number of dipping operaticns or by reducing the proportion of liquid in making the paste. Specification 128,463 is referred to.
Patent GB-490958-A (GB)
Title: Improvements in the manufacture and production of azo dyestuffs
IPC: C09B29/08
Filed: 1937-04-16
Abstract: Dyes are made by coupling diazo compounds of aromatic or heterocyclic amines containing carboxylic groups but being free p  from sulphonic groups with arylaminocarboxylic acid nitriles of the formula <FORM:0490958/IV/1> which are free from sulphonic and carboxylic groups and in which R is a methylene group or chain of methylene groups, X is a hydrogen atom or an alkyl, hydroxyalkyl, aryl, or aralkyl group, and Y is an aryl group.  Diazo compounds specified are those derived from aminobenzoic acids, 5-nitroanthranilic acid, 4-amino-3-chlorbenzoic acid, 4-aminosalicylic acid, aniline-2.4-dicarboxylic acid, aminonaphthalene carboxylic acids, 4-aminophenylacetic acid, 4-aminocinnamic acid, 4-aminohydrocinnamic acid, 2-aminophenoxyacetic acid, 4-methyl-3-aminophenylsulphonylacetic acid, 4-aminophenyl-b -sulphonylpropionic acid, N-(4-aminophenyl)-b  - aminopropionic acid, N - (4 aminophenyl)aspartic acid, 1-amino-5-naphthoxy - acetic acid, 4 - aminodiphenyl - 41-carboxylic acid, 4-aminodiphenylamine-21-carboxylic acid, 4-aminodiphenylether-21-carboxylic acid, 4-aminoazobenzene-31-carboxylic acid, aminobenzothiazole - 6 - carboxylic acid.  The products are soluble in water and dye cellulose esters and ethers red to yellow shades.  In examples, N(b -cyanethyl-b -hydroxyethyl)-m-toluidine is coupled with the diazo compounds from (1) 4-aminobenzene-1-carboxylic acid; (2) 4-aminophenoxyacetic acid; (3) 4-aminosalicylic acid; (4) 2-aminobenzothiazole -6-carboxylic acid; (5) 2.3-aminonaphthoic acid; (6) the azo-compound obtained by coupling diazotized 4-aminobenzene-1-carboxylic acid with 2.5-dimethyl-1-aminobenzene; also in examples; (7) 5-nitroanthranilic acid is diazotized and coupled with N-b -cyanethyl-N-ethylaniline.  2 - Aminobenzothiazole - 6 - carboxylic acid is prepared by reacting p-aminobenzoic acid with sodium thiocyanate in glacial acetic acid and gradually adding bromine.
Patent GB-543608-A (GB)
Title: Improvements in pressure cabin aircraft
IPC: B64D13/04
Filed: 1940-06-28
Abstract: 543,608. Ventilating aircraft. GENERAL AIRCRAFT, Ltd., WILLIAMS, D. L. H., and CROCOMBE, F. F. June 28, 1940, No. 11015. [Class 137] In a pressure cabin aircraft, a supercharger 7 draws in air through an intake duct 8 and delivers it into the cabin through a duct 10, and control means are provided in the intake duct to provide a throughput in conformity with that through a cabin air outlet valve 26. A valve 12 in the intake is actuated by a cam 21 moved by a piston 13 working in a cylinder 14 communicating by a pipe 16 with the atmosphere and by a pipe 15 with the interior of the cabin. Movement of the piston against a spring 27 due to a fall in external pressure opens the valve 12 and increases the air supply to the cabin. In an electrical control, Fig. 4, for the air outlet valve for the cabin, a fixed sleeve 35 open to the atmosphere co-operates with an outer movable sleeve 36 to vary the amount by which ports 37, 38 are caused to register, the sleeve 36 being attached by a plunger 39 to a solenoid 40. A bellows 41 in the cabin causes an arm 42 to swing about a pivot 43 and engage either contact 44 or 45 completing the circuit through relays 46, 47 from a battery 48 to the solenoid which either opens or closes the effective air passage to the atmosphere. In Fig. 5 is shown a fixed sleeve 28<SP>1</SP> and a sliding sleeve 30 with an opening 31 under control of a bellows 32 constituting a coarse adjustment of the air outlet. A fine adjustment is provided by movement of an external sleeve 36 and its opening 381 with respect to a fixed opening 371 in the sleeve 28<SP>1</SP> by means of a solenoid 40 operating as is described in connection with Fig. 4.