baber/WOPTO huggingface dataset:
Patent GB-696456-A (GB)
Title: Devices for repeated dispensing of measured quantities of liquids
IPC: G01F11/06
Filed: 1951-07-18
Abstract: 696,456. Delivering measured quantities of liquids. PILLIN, Ltd., J. B., and EARLY, K. C. July 18, 1952 [July 18, 1951], No. 16996/51. Class 106 (v). Apparatus for delivering measured quantities of liquids,. particularly oil, petrol or water to vehicles in an assembly line, comprises a supply tank 81, a pump 82, an accumulator 83 (or, alternatively, a pressurized ring main), a by-pass relief valve 111 and, fitted in a cabinet 110, a valve 84 which controls the supply of the liquid to one side of a free piston 2 in a measuring chamber 1 and directs the measured quantity delivered.on the other side through a hose to a delivery nozzle 86. A heating jacket 23 surrounds the chamber and a rod 11 extending into the chamber to provide an abutment 9 for limiting the piston stroke is adjustable by a handwheel 21 on a lead screw 20 engaging a nut 12 secured to the rod. The nut 12 and the rod 11 are prevented from rotating by a flange 14 which slides on a pair of guide rods 17, one of which is provided with a scale co-operating with a vernier plate 22 on the flange. Initial compensation for small variations in size of the measuring chamber may be made by placing washers on the chamber or by adjusting the flange 14 on the nut 12 and then securing it by locknuts 16. The inner rotary member of the control valve is turned step-bystep through 90 degrees by a ratchet mechanism which is operated manually or automatically by passage of the vehicles. Control passages and slots at 90 degrees to each other in the inner rotary member and ports in the body of the valve are duplicated by diametrically-opposite passages, slots and ports, the ports being interconnected to balance the pressure on each side of the inner member. The delivery nozzle 86 incorporates a spring-loaded shut-off valve 74 and an anti-drip valve 75 held on a seat 76 by a light spring 77. A connection having a normally-closed valve may be provided between the ends of the measuring chambers so that, when setting the abutment, the liquid displaced by the movement of the piston may be directed to the other side of the piston and prevent a vacuum being formed.
Patent GB-632335-A (GB)
Title: Improvements in and relating to amino-formaldehyde resin compositions incorporating latent curing agents
IPC: C08K5/31
Filed: 1947-06-27
Abstract: A fusible amino-formaldehyde resin has incorporated therein as curing catalyst an acyl carbamylguanidine salt, or an aryl guanylurea.  As arylating acids are preferred those of dissociation constant 10-5 or less, e.g. acetic, lauric. The preparation is described (see Group IV (b)) of acetyl carbamylguanidine neutral sulphate, and phthalate, lauroyl carbamylguanidine neutral sulphate, and the hydrochlorides of lauroyl and benzoyl guanylureas.  Resins to be cured may be made (A) by refluxing 284 pts. urea and 652 pts. 37 per cent formaldehyde at pH 7.7, then adjusting to pH 8.0 followed by rapid cooling to 30-35 DEG  C., and refluxing until a product having a viscosity of 58-62 centipoises was obtained, whereupon the pH was adjusted to 8.0 while cooling rapidly; (B) reacting at 70-85 DEG  C. melamine and formaldehyde at pH 7.0 until hydrophobed, adjusting the pH to 9.0 and cooling.  An aqueous paste of the two resins is mixed with the curing agents, and used for a plywood adhesive. Wood flour, pigments and buffers may be added.ALSO:Salts of acyl carbamylguanidines and acyl guanyl ureas are prepared for use as curing catalysts for amino-formaldehyde resins (see Group IV (a)).  In examples: (1) acetyl caramylguanidine neutral sulphate is obtained by the gradual addition of dicyandiamide to a mixture, prepared below 50 DEG  C., of concentrated sulphuric acid, acetic acid, and acetic anhydride, keeping the temperature at 50-70 DEG  C.  The product is precipitated and recrystallized from water; (2) the sulphate of (1) is reacted with sodium diphthalate to yield the corresponding phthalate; (3) lauroyl carbamylguanidine neutral sulphate is prepared by adding dicyandiamide to a mixture of lauric acid, sulphuric acid and oleum, at 25-30 DEG  C., and pouring the mixture on to ice; (4) lauroyl guanyl-urea hydrochloride is prepared by refluxing together lauroyl dicyandiamide, aqueous alcohol and hydrochloric acid, and then precipitating the salt by cooling; (5) benzoyl guanylurea hydro chloride is prepared by refluxing benzoyl dicyandiamide with 10 per cent hydrochloric acid.
Patent GB-595105-A (GB)
Title: Improvements in or relating to dust-collecting apparatus for use with grinding wheels, buffing wheels, and like rotating, abrading and polishing heads
IPC: B24B55/06
Filed: 1945-07-04
Abstract: 5 9 5 , 1 0 5 .  Centrifugal machines. MULLER, W., RICHARTZ, P., and RICHARTZ, S. July 4, 1945, No. 17083. [Class 23] [Also in Group XXVIII] In a dust collecting apparatus for use with a rotating abrading head partly encircled by a hood from which dust is removed through an adjacent conduit by an induced airstream, the hood is so shaped as to provide a substantially closed air circuit round the head and a free flow of dust-laden air into an adjacent separator, and the separator is so shaped as to provide a second substantially closed air circuit in which cleaned air merges with the dust-laden air and is returned to the separator inlet. As shown, the hood comprises a two-part casing 11, 12, the latter part 12 of which converges forwardly to the periphery of a head 10 to give an air stream induced by the rotation of the head on which may be mounted impellers; a high velocity directed downwardly to the workpiece. The lower part of the casing 11 comprises rear and front walls 17, 18 flanked by conduits 21 through which dust thrown by centrifugal force and passing beneath an adjustable forked baffle plate 23 enters the separator at 31. Air passing above the plate 23 completes the first closed circuit. The separator comprises a fixed cylindrical casing 27 having a spout-like extension 44 with one tangential side wall to gather the air stream induced by the rotation of a wire mesh basket 38 mounted within the casing 27, and which removes the dust. The open end of the spout is shrouded at 48, 49 to form a gap 55 through which clean high-velocity air is directed to flow tangentially to the head 10 to meet dust-laden air of the first closed circuit and to enter the separator to complete the second closed circuit.
Patent GB-434296-A (GB)
Title: Improvements in conveyances for transporting railway cars and the like by road
IPC: B60P3/06
Filed: 1934-06-09
Abstract: 434,296. Vehicle spring-suspensions. GOTHAER WAGGONFABRIK AKT.-GES., Gotha, Germany. June 9, 1934, No. 17176. Convention date, June 9, 1933. [Class 108 (ii)] [See also Group XXXI] A low-platform semi-trailer combination for transporting railway vehicles over roads is characterized by a tractor having three trailing wheels on each side of the frame, each set comprising a side-by-side pair of wheels d and behind these a wheel e farther from the frame than the inner wheel of the pair so as to provide steering clearance, the trailer being pivotally connected to the tractor at a point between and below the level of the tops of the trailing wheels. The trailer, Figs. 2 and 3, is furnished with channel rails b to guide the wheels of the railway vehicle well forward and, at its rear end, is mounted through the medium of springs g and equalizing levers h on wheels c, the stub axles of which are formed on transverse arms f pivoted to the trailer frame at their inner ends b<1>. The tractor wheels d, which are mounted on the ends of a cross bar o<2>, Fig. 4, are connected by chain or toothed gears in casings A<1> to differentials A at the ends of cross shafts A<2> driven through a central differential A<3> by the engine. The third wheel e of each set may be mounted on an extension o of the crossbar o<2>, Fig. 4, the tractor frame s being supported thereon by springs i, and guides o<1> being provided to prevent wheel wobble. Alternatively, as shown in Figs. 2 and 5, the spring i may comprise the connection between the crossbar o<2> and the stub axle of the wheel e, the tractor frame bearing thereon by means of a transverse girder member k, Fig. 2, or shaped member t, Fig. 5, fixed at one edge to the tractor frame and arched over the wheels d, its other edge carrying inverted cups l seated on rounded bosses on the springs.
Patent GB-188291-A (GB)
Title: Improvements in and relating to conveying belts
IPC: B65G15/42
Filed: 1922-06-22
Abstract: 188,291. Alexander, A. E., (Portable Machinery Co.). June 22, 1922. Flat endless-belt conveyers.-Articles carried are prevented from slipping down an inclined endless belt conveyer 10 by a series of arched flexible flights 13. Openings may be formed in the rear face of each flight for cleaning purposes.
Patent GB-929692-A (GB)
Title: Improvements in or relating to expansible gas-containing cells for use with oil-immersed transformers
IPC: H01F27/14
Filed: 1961-05-11
Abstract: 929,692. Gas sealed transformers. S. NAKAZAWA. May 11, 1961, No. 17238/61. Class 38 (2). An airtight expansible cell which is housed in a housing 18 and communicates with the nitrogen-filled space of an oil-immersed transformer for maintaining its pressure constant, is made out of rectangular and triangular metal plates shown spread out in Fig. 2, jointed together with flexible, gas-tight material such as vinyl resin, synthetic rubber or metal sheets. Front plate 1 may be fixed to an inner side of the housing 18 and back plate 7, borne on a wheel 21, is guided on rails 22. The size of the cell may be seen through slot P. Two or more cells may be enclosed in a common housing, Fig. 12 (not shown).
Patent GB-170626-A (GB)
Title: Improvements in thread-spooling machines
IPC: B65H54/74
Filed: 1920-06-25
Abstract: 170,626. Ellam, G. June 25, 1920. Variable-speed friction gearing.-In a friction disc drive in a thread-spooling machine, the pressure between the disc and roller g, h is adjusted bv mounting the roller h on a spindle i carried in pivoted brackets m, which are controlled by a spring r, arranged to draw the brackets against an adjustable screw stop s.
Patent GB-824427-A (GB)
Title: Improvements in or relating to the purification of electrolytic fluorine
Inventor: LEECH HARRY ROWLAND
IPC: C01B7/20
Filed: 1957-05-31
Abstract: Hydrofluoric acid-contaminated electrolytic fluorine is intimately contacted with fluorosulphonic acid, and the fluorosulphonic acid containing HF is regenerated for reuse as absorbent.  The gas may pass up a tower, e.g. packed with nickel turnings, down which the fluorosulphonic acid is sprayed at -25 DEG  to 40 DEG  C.  The spent absorbent may be heated in a fractionation column and stripped HF condensed, or may be reacted with SO3 to convert all the HF to fluorosulphonic acid and a portion returned to the absorption tower, or may be reacted with SO3 to make up for fluorosulphonic acid losses and heated to strip out remaining HF, or may be heated to strip out a portion of the HF and reacted with SO2 to make up losses.
Patent GB-1422780-A (GB)
Title: Retro-reflectors
IPC: G02B5/12
Filed: 1972-04-14
Abstract: 1422780 Retro-reflectors ASSOCIATED ENG Ltd 12 April 1973 [14 April 1972]  17472/72 Heading G2J A retro-reflector which repetitively modifies e.g. flashes reflected light when relative motion occurs between the light source 15, Fig. 1 and the retroreflector 10 along a line, e.g. optic axis 16 of the retro-reflector which may be the road surface into which the reflector 10 is sunk, inclined to the line joining the source and retro-reflector, has means e.g. the curved front surface 11 of a cylinder 10 of glass or plastics to at least substantially focus a substantially parallel beam 14 substantially at right angles on to the curved rear surface 12 of the retroreflector, surface 12 having alternating bands e.g. 17, 18, Fig. 2 of greater and lesser reflectivity, so that the bands are traversed by the beam during relative motion. The surfaces 11, 12 have radii of curvature R, L and are separated substantially by a distance R + L. The bands may be formed alternately silvered and black, or polished metal with slots, silvered and coloured, bright and matt or they may merge into each other. They may have increasing width, e.g. as shown, so that the rate of flashing is proportional to distance between source and retro-reflector, or may be constant, or of equal width so as to be proportional to speed, and they may be upwardly curved to compensate the downward camber of e.g. a road surface. In an alternative embodiment the retro-reflector comprises a thin front lens and a rear concave mirror, the respective focal length and radius of curvature being substantially equal and the separation being equal to the radius.
Patent GB-1187172-A (GB)
Title: A Forging Manipulator Co-operating with a Forging Press.
IPC: B21J13/10
Filed: 1968-04-11
Abstract: 1,187,172. Forging manipulators. SCHLOEMANN A.G. 11 April, 1968 [22 April, 1967], No. 17516/68. Heading B3H. A forging manipulator has grippers 12 mounted for longitudinal movement on a carriage 13 and hydraulic control means to supply fluid to an hydraulic motor 9 to move the carriage and to a cylinder 10 to move the grippers relative to the carriage. The fluid is supplied through three-way valves 7, 8 from either a pair of pumps 1, 4 or a pair of quantity regulating valves (25), (26), Fig. 2 (not shown). The pumps are independently driven and are connected by linkages 6 so that they are equally adjusted. A servo-control 3 continuously varies the delivery of the pumps. In the other embodiment the valves (25), (26) are equally adjusted by a rod 27 with adjustable wedges 28 and the adjustment effected by a servo-control 3. Initially both the three-way valves are in their left-hand position 14, 17 so that the piston 20 is pushed to the right as the carriage is fed to the left and the grippers remain stationary relative to the press. At the end of the forging the valve 8 is moved to the right and the grippers are moved to the left at twice the speed of the carriage.
Patent GB-710001-A (GB)
Title: Improved process for treating lard
Inventor: WAL ROBERT J VANDER
IPC: C11C3/10
Filed: 1951-07-24
Abstract: Natural lard is modified by heating the lard in the liquid phase in the presence of an alkali metal alcoholate at a temperature between that necessary to keep the lard in the liquid phase throughout the reaction and 150 DEG C.  The triglycerides are thereby rearranged and the shortening properties improved.  The heating may be carried out between 50 DEG  and 135 DEG C., preferably between 50 DEG  and 55 DEG C., for a time which may be between 5 and 20 minutes.  Any alkali metal alcoholate may be employed, sodium methoxide and ethoxide being specified, the amount being less than 1 per cent. (preferably 0.5 per cent.) by weight of the lard to be treated.  After the treatment the catalyst may be inactivated by the addition of water, followed by filtering or centrifuging.  In an example 750g. of lard is filtered and vacuum dried, heated to 55 DEG C., and 3.75g. of fresh sodium methoxide is added with rapid stirring.  After an hour 14 c.c. of water is added to destroy the catalyst, the mixture is filtered and the modified product is hardened by the addition of 8 per cent. of lard, flakes and plasticized.
Patent GB-581591-A (GB)
Title: Improvements in, or relating to, electric couplings for use with thermocouples, thermal fuses and the like
IPC: G01K7/02
Filed: 1944-09-14
Abstract: 581,591. Electric couplings. BIRLEC, Ltd., (formerly BIRMINGHAM ELECTRIC FURNACES, Ltd.), and LEAN, R. J. Sept. 14, 1944, Nos. 17557/44 and 1097/45. [Class 38 (i)] A coupling for connecting pairs of conductors which are at an angle to one another comprises a movable wedge which is forced between one pair of conductors to press them into contact with the conductors of the other pair. Figs. 1 and 2 show in elevation and plan a coupling for connecting a pair of conductors 7 to a pair 10 at right angles. The conductors are . led into a casing 1 having a hinged cover 2 and a socket 3 which can be connected to a temperature recording device. Within the casing is an insulator 4 baving passages for the wires the bared ends of which eater a cavity in the insulator containing a wedge 11. As shown in Fig. 2 the wedge abuts against a bar 13 which can be moved by screws 14 to cause the wedge to pass between the conductors 7 and force them apart and press them against the conductors 10. In a modification the wedge is moved by a screw cap which abuts against the blunt edge of the wedge. The boss 22 through which the conductors 10 enter the casing is formed partly in the cover 2 and partly in the body of the casing. The external surface of the boss may be tapered and screwthreaded to receive a clamping ring.
Patent GB-152734-A (GB)
Title: Improvements in tubes for honeycomb and like radiators and like heat exchangers
IPC: F28F1/04
Filed: 1919-07-14
Abstract: 152,734. Richards, E. J. July 14, 1919. Honeycomb and like tube apparatus. - A seamed tube 2 having a polygonal cross-section and enlarged ends 1, for use in the construction of honeycomb radiators and like heat-exchangers is formed with the seam extending throughout the whole length instead of extending only between the enlarged ends. The lap 4 of the seam extends over half the width of the inner surface of a flat side of the tube.
Patent GB-788464-A (GB)
Title: Apparatus for operating the adjusting gears of axial bearings, more particularly on roll-type machines for straightening rolled metal rod or sections
IPC: B21D3/00
Filed: 1955-06-17
Abstract: 788,464. Straightening. SCHLOEMANN AKT.-GES. June 17, 1955 [July 10, 1954], No. 17584/55. Class 83 (4). An apparatus for operating the adjusting gear of axial bearings of roll-type straightening machines by means of adjusting shafts is characterized in that the adjusting gears of all the roll shafts in one plane are self-braking and are associated with a single manually- or motoractuated shaft which is adapted to be operatively connected with the gear by clutches, actuated manually, electrically or hydraulically either individually or jointly. As shown, a hollow adjusting shaft 1 has a plurality of clutches 2 which connect the shaft with pinions 3 for adjusting threaded bushes 4 of axial bear. ings 5 of straightening roll shafts 6. The clutches 2 each comprise a member 11 axially slidable on, but non-rotatable on the shaft 1. The member 11 has an annular member 12 carrying teeth 10 for engagement with teeth 9 on a member 7 rotatable on the shaft 1. The membr 12 is urged axially of the shaft 1 in opposite directions by springs 18 and 19. To engage one of the clutches a rod 14 is pulled outwards, against the action of one of the springs 18, by its hand lever 16 and rotated into locked position as determined by a notch 17 in a handwheel 15, such that a radial projection 13 on the rod 14 causes the teeth 10 to engage the teeth 9. The bush 4 may then be adjusted by rotation of the handwheel 15. The adjusting shaft 1 may be rotated by an electric motor instead of manually, while the clutches 2 may be actuated by magnets. In a modification, Fig. 3 (not shown), a manually rotated adjusting shaft is axially displaceable and has a plurality of spaced-apart pinions that can be brought in turn into engagement with a series of pinions on shafts which adjusts the bearings of the straightening rolls. The spacing between the pinions on the adjusting shaft is greater or less than the spacing between the pinions on the bearing adjusting shafts by at least one tooth width. A locking bolt can engage in any one of a series of grooves in the adjusting shaft so as to determine its axial setting.
Patent GB-576222-A (GB)
Title: Manufacture of para-aminobenzene-sulphonyl-guanidine
IPC: C07C311/64
Filed: 1942-12-11
Abstract: p-Aminobenzenesulphonyl-guanidine is made by reacting ammonia with an S-alkyl or aralkyl benzenesulphonyl-pseudo-thiourea having a p-amino group or substitutent which can be converted thereto by hydrolysis or reduction or reaction with ammonia, e.g. an acylamino, azo or nitro group or halogen.  p-Substituted S-methyl, ethyl, propyl or benzyl-benzenesulphonyl-pseudo-thioureas may be used, prepared by condensing p-substituted benzenesulphonic acid halides with S-substituted pseudo-thioureas or salts thereof in pyridine.  The reaction with ammonia may be effected in the presence of water or solvents such as dioxane, alcohol, benzene, toluene, xylene, chlorbenzene, nitrobenzene or tetrachlorethane or in anhydrous liquid ammonia.  In examples: p - amino - benzenesulphonyl - S - ethyl - pseudo - thiourea, made by condensing S-ethyl-pseudo-thiourea hydrobromide with p-acetylaminobenzenesulphochloride and subsequent saponification, is heated with dilute ammonia solution, whereby mercaptan is evolved and a solution obtained which gives p-aminobenzenesulphonyl-guanidine on cooling.  The corresponding S-methyl compound may be used similarly; (2) p-acetylaminobenzenesulphonyl-S-ethyl-pseudo-thiourea is heated with ammonia solution to yield p - acetylaminobenzenesulphonyl p  - guanidine which is heated with hydrochloric acid to produce the p-amino compound.  The S-benzyl compound may be used similarly; (3) p-nitrobenzenesulphonyl-S-ethyl-pseudo-thiourea is refluxed with ammonia solution and alcohol to give p-nitrobenzenesulphonyl-guanidine which is heated with acid-etched iron powder, water and alcohol to produce p-aminobenzenesulphonyl-guanidine.
Patent GB-1219715-A (GB)
Title: A plate cylinder incorporating a clamping device for flexible printing plates
Inventor: ROTH GERHARD
IPC: B41F27/12
Filed: 1969-04-03
Abstract: 1,219,715. Printing cylinders; printing plates. MASCHINENFABRIK AUGSBURG NURNBERG A.G. 3 April, 1969 [24 April, 1968], No. 17665/69. Heading B6C. In a printing cylinder 1 which may be used in a printing press in either direction of rotation a flexible printing plate 19 is clamped by a device located in a longitudinal gap 2 comprising spindles 3, 4, each having a longitudinal flap 9 or 10 which engages one of the end edges of the plate. Rotation of each spindle is effected by a worm and worm gearing device located at the end of the gap 2. Clamping of the trailing edge of the plate is effected by a longitudinal rod 14, which is located in the gap and is spring-loaded radially from the centre of the cylinder to engage the trailing edge and hold it against either the flap 10, Fig. 2, or flap 9, Fig. 3, according to the intended rotational direction of the cylinder.
Patent GB-562063-A (GB)
Title: Improvements in steam or other vapour superheaters
IPC: F22G7/14
Filed: 1942-12-11
Abstract: 562,063. Steam superheaters. McINTOSH, C. Dec. 11, 1942, No. 17675. [Class 123 (iii)] In a superheater having elements each consisting of a,number of steam tubes 6 secured by welds 14 in recesses in the walls of a watertube 2 as described in Specifications 478,119 and 423,095, the superheat is controlled by supplying water continuously to the tube 2 under the control of a valve 76 governed by a thermostat in the steam outlet header 58, the water flowing in the same direction as the steam. The water is supplied by a pump 46 drawing from the lower drum 64 of the boiler in which the superheater is installed, and the upper end of the tube discharges into an upper drum 55 through a pipe 54. At starting, the flow of water is controlled by a hand valve 100 in a byepass 70 between the pump and the water inlet header 45. The water flow is also controlled by a valve 98 in a byepass 72 and governed by a thermostat in the water outlet header 53. The passage through the water tube 2 may be of annular cross-section.
Patent GB-1526393-A (GB)
Title: Lockers
IPC: A47B55/00
Filed: 1975-08-20
Abstract: 1526393 Lockers LINK 51 Ltd 20 Aug 1975 [24 July 1974] 17675/78 Divided out of 1526392 Heading A4B A locker moulded from self-skinning polyurethane foam comprises a hinged door which lies in a plane converging on a wall forming the back and front walls.