baber/WOPTO huggingface dataset:
Patent GB-959062-A (GB)
Title: Curable mixtures of epoxy resins and hydroxy-sulpholene-adducts
IPC: C08G59/50
Filed: 1962-04-04
Abstract: Adducts of hydroxysulpholenes with a polyamine and having the general formula: <FORM:0959062/C2/1> in which R1 to R8 are H or alkyl of 1-4 carbon atoms; Z1 and Z2 are divalent aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon residues and n is a whole number from 1 to 4, are prepared by simple mixing of both components, if desired, with moderate heating. Preferred sulpholenes are 4-hydroxy-2-sulpholene and 4-methyl-4-hydroxy-2-sulpholene.  Lists of suitable polyamines are given in the Specification. Examples describe adducts from 4-hydroxy-2-sulpholene with triethylene tetramine; 4-hydroxy-sulpholene and bis-(p-aminophenyl) methane; 4-hydroxy-2-sulpholene and 3-(N:N-dimethyl-amino) propylamine; 4-methyl-4-hydroxy-2-sulpholene and triethylene tetramine; 4-hydroxy-2-sulpholene and a mixture of triethylene tetramine, 3-(N:N-dimethylamino) propylamine and bis-(p-aminophenyl) methane; 4-hydroxy-2-sulpholene and 4, 41-diamino-dicyclohexyldimethyl-methane.  Hydroxysulpholene starting materials are prepared by treating sulpholenes with hypochlorous acid and then with alkali at a pH not substantially above 8. Specification 361,341 is referred to.ALSO:Curable compositions comprise a polyepoxide and an adduct from an hydroxy-sulpholene and a polyamine which contains at least one amine hydrogen atom.  The compositions may also include a polyamine. The adduct may be prepared in situ by reaction with the polyamine which may be present in excess.  Lists are given in the Specification of suitable polyepoxy compounds and of suitable polyamines.  Suitable sulpholenes may be obtained by treating sulpholenes prepared as described in Specification 361,341 or German Specification 506,839 with hypochlorous acid and then with alkali at a pH not higher than 8. The adducts are of the formula: <FORM:0959062/C3/1> in which R1 to R8 are H or alkyl of 1-4 carbon atoms, Z1 and Z2 are divalent aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon residues and n is a whole number from 1 to 4.  The compositions may contain conventional additives, e.g. dibutyl phthalate, dioctyl phthalate, tricresyl phosphate, asphalt, bitumen, glass fibres, mica, quartz meal, cellulose, kaolin, dolomite, colloidal silica or metal, e.g. Al powder. Examples describe the curing of compositions containing a liquid polyepoxide prepared from epichlorohydrin and bis-(p-hydroxyphenyl)-dimethyl methane with adducts prepared from 4-hydroxy -2- sulpholene or 4-methyl -4- hydroxy-2 sulpholene and triethylene tetramine, bis (p-aminophenyl) methane, (N,N-dimethylamino) propylamine, 4, 41-diamino-dicyclohexyl dimethylmethane. In one example a mixture of amines is used to prepare the adducts. In some examples some free polyamine is present as well as the adducts.
Patent GB-400994-A (GB)
Title: Improvements in and relating to electric discharge rectifiers
IPC: H01J13/22
Filed: 1932-05-06
Abstract: 400,994. Metallic-vapour rectifiers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Elektricitats- Ges. ; 2, Friedrich Karl-Ufer, Berlin.) May 6, 1932, No. 13129. Convention date, May 6, 1931. [Class 39 (i).] Metallic parts within a metallic vapour rectifier are protected from secondary discharges by insulated metal grids which are situated in the paths of the secondary discharges but clear of the path of the main discharge and to which is applied a constant or periodically varying potential. In the form shown, the anode shield 4, the container and the cooling coil are protected by grids 5 .. 8 respectively.
Patent GB-561515-A (GB)
Title: Improvements in machines for sorting cylindrical objects
IPC: B07C5/06
Filed: 1942-09-17
Abstract: 561,515. Sorting cylindrical objects. GENERAL ELECTRIC CO., Ltd., ROWLEY, E. R., and MOSS, A. Sept. 17, 1942, No. 13144. [Class 106 (ii)] A machine for sorting cylindrical objects comprises (1) three right cylinders A, B, C with their axes parallel, so arranged that the gap between A and B is the " go " limit, 'and the gap between B and C the " no go " limit; (2) means for periodically presenting the objects to the gap between A and B, and if they pass that gap, to the gap between B and C ; and (3) projections on at least two of the cylinders, which pass through the said gaps between the presentation of successive objects and carry away an object that has not passed through the gap in that interval. As shown, carbon rods 1 fall from a hopper 4 into grooves 3 of a roller D which drops them periodically into the gap between cylinders A and B rotating in the same direction. Oversize rods are swept away by claws 6 on cylinder B, the others are presented to the gap between cylinders Band C rotating in opposite directions. Undersize rods pass through the gap, while those of correct size are swept away by claws 8. If only one end of a rod passes the first gap it is caught by a plate 7 until picked up by the claw 6. The gaps may be varied according to the desired limits by micrometer screws. The claws may be made larger than the gaps, in which case grooves are cut in the corresponding cylinders. The cylinders may all rotate in the same direction.
Patent GB-215961-A (GB)
Title: Improvements in centrifugal pumps
IPC: F04D7/04
Filed: 1923-05-16
Abstract: 215,961. Allen, Sons, & Co., Ltd., W. H., and Allen, H. G. May 16, 1923. Wear, preventing.-Renewable liners d, e form the sides of the casing of a centrifugal pump, and the leakage passage round the impeller a on the suction side of the pump has two narrow ends f, g connected together by a wider passage h. The ends f, g q of the passage are parallel to each other but inclined to the axis while the intermediate portion h is at right angles to the axis.
Patent GB-131870-A (GB)
IPC: C01C1/24
Abstract: 131,870. L'Air Liquide Soc. Anon. pour l'Etude et l'Exploitation des ProcÚdÚs G. Claude. Aug. 24, 1918, [Convention date]. Ammonium chloride; sodium bicarbonate. - Relates to a modification of the process for producing ammonium chloride and sodium bicarbonate from synthetic ammonia described in Specification 130,365. According to the invention, sodium chloride is added to the mother-liquor, obtained after separating out the sodium bicarbonate and containing mainly ammonium chloride, in such quantity that it remains dissolved during the subsequent operations, ammonia and carbon dioxide are passed in, and the solution is cooled to separate out ammonium chloride; the solution is then treated with sodium chloride and carbon dioxide to precipitate sodium bicarbonate; these operations are then repeated on the resulting mother-liquor to produce more ammonium chloride and sodium bicarbonate. The ammonium chloride produced is heated to nearly 70‹ C. to destroy any alkalinity. The cooling of the solution to separate out the ammonium chloride may be effected by the evaporation of the liquid ammonia or of the liquid or solid carbon dioxide used in the process.
Patent GB-779719-A (GB)
Title: Improvements in protection devices for motorcyclists
IPC: B62J27/00
Filed: 1955-05-06
Abstract: 779,719. Weather shields for motor-cycles; crash-guards. SEBA, R. May 6, 1955 [May 8, 1954], No. 13251/55. Class 136(1). [Also in Group XXV] A protection device for motor-cyclists comprises a leg splash shield 7 releasably secured by means of pegs 4A . . . 4D and clips 6A . . . 6D to a transverse bumper structure 3. The shield shown in Fig. 1 is of flexible material but a rigid shield may also be used. The shield may be extended at its lower end to provide a flap 7A giving extra weather protection to the riders' feet. In a modification shown in Fig. 6, the pegs on the bumper 3 are drilled to receive knurled-head screws 11. The rigid shield 7 has eyeletted holes for the passage of the screws. The shield is of U-shape and has upper extensions 7B to increase the protection up to the knees of the rider.
Patent GB-252718-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/06
Filed: 1926-05-26
Abstract: 252,718. Berkel, C. F. M. van. May 27, 1925, [Convention date]. Cutting slices in succession. - In a slicing- machine wherein the substance to be sliced is advanced intermittently towards the knife by a feed-screw and feed-nut, variations in the slicethickness due to the wearing of the feed-screw and feed-nut are prevented by an auxiliary member, or members, which engages the feed-screw and opposes the forward movement due to the inertia of the feed table. As shown in plan in Fig. 1, the invention is applied to a disc-knife reciprocating-table machine, the feed-screw D being engaged by a segmental feed-nut 3 and by an auxiliary member which consists of a member 4 having teeth 5, slidable between guides 7 and urged towards the screw D by a spring 6. The member 4 slides obliquely to the feed-screw and is mounted on the underside of the feed table. The feed-nut 3 and the member 4 are simultaneously disengaged from the screw D by mechanism consisting of a rod 8 slidable in guides 8<1> on the underside of the feed-table, one end of the rod being engaged by a cam on a pivoted handle 10 and the other end carrying a limb 16 which engages an inclined portion of the pivoted lever which carries the nut 3. The lever and nut 3 are thereby raised against the action of a torsion spring and the member 4 is retracted by the engagement of the inclined face 12<1> of a lever 12 with a stop 15 on the member 4, the lever being pivoted at 13 to the feed-table and slotted to engage a projection 14 on the rod 8 which is returned by a spring 9. The cam on the lever 10 is provided with limit stops. Two or more auxiliary members may be provided.
Patent GB-261804-A (GB)
Title: An improved motor-operated agricultural digging machine
IPC: A01B11/00
Filed: 1925-05-21
Abstract: 261,804. Hejma, V. May 21,1925. Mechanical-spade machines; lifting tool frames manually; tools, construction of. - In a motor digging-machine comprising spades that are resiliently and pivotally mounted on their shanks, each spade is provided with a counterweight which bears against the controlling spring as the spade is being forced through hard ground, and subsequently assists the outward swing of the spade for turning the soil. The bent shade shanks 6 are connected to cranks on a shaft A driven from the motor by bevel and spur gearing. Plates 16 on the lower ends of the shanks are connected by links 7 to a sector V adjustable about a pivot E by worm gearing 8. Each spade comprises a notched blade 9 interchange. ably connected to a frame consisting of a transverse plate 14, curved side plates 13, and carrying arms 18. Between the side plates 13 are knives projecting from the transverse plate 14. The spade is pivoted on the shank 6 and controlled by a counterweight 20 and a spring 23 passing round a pin 22. When the edge of the spade encounters the hard ground surface the weight 20 is forced into contact with the spring 23. A tappet 24 on the link 7 then also engages the spring and puts increasing downward pressure on it. When the hard surface has been penetrated the spring and the weight turn the spade about its pivot F and the soil is turned over, passing over the blade 9 and between the arms 18 and encountering the knives projecting from the plate 14. A baffle plate 15 is provided. In a modification, the movement of the spade is limited by a pin on the plates 16 passing through a slot in the counterweight 20.
Patent GB-299031-A (GB)
Title: Method and apparatus for twisting a textile thread or for twisting and doubling a plurality of threads
IPC: D01H1/00
Filed: 1928-05-07
Abstract: 299,031. Soie de Chatillon. Oct. 20, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Doubling and twisting machines with twisting arrangements at delivery.-In a machine for twisting .or doubling threads both the delivery and receiving bobbins are rotated to impart twist to the thread. The thread 6 is delivered from a bobbin 1 on a spindle, 2 rotated by a band 4 and passes through a guide 7 to a driven roller 8 round which it is wrapped. It is then fed by the roller 8 through a guide 12 to a ring spindle 15. A number of threads drawn from delivery bobbins may be passed together through the guide 7 and doubled on the ring spindle.
Patent GB-301277-A (GB)
Title: Name and number plate of metal frames
IPC: G09F7/10
Filed: 1928-05-07
Abstract: 301,277. Jammer, E. May 7, 1928. Loose-letter signs.-Letters are supported in grooves made by bending over the edges of sheet metal and are secured in place by end-pieces b having tongues b<1> adapted to enter the grooves. Pieces having several tongues May be used to combine several strips together.
Patent GB-349262-A (GB)
Title: Improvements in the construction of filters
IPC: B01D29/075
Filed: 1930-05-01
Abstract: 349,262. Filters. RILEY, F. G., 256, South Lambeth Road, London. May 1, 1930, No. 13447. [Class 46.] In a filter comprising blocks H of paper pulp or similar material with internal draining gauze I and separating plates P, the blocks and plates are mounted on a central outlet tube O which has apertures O<1> and is closed at the upper end by a nut R which serves to hold the blocks in position and to spread the liquid to be filtered as it enters the casing centrally from above. Sheets M<1>, K<1>, of ebonite are provided on the cover M and baseplate K of the casing which is held together by bolts N. Specification 22256/02, [Class 46, Filtering &c.], is referred to in the Provisional Specification.
Patent GB-354196-A (GB)
Title: Improvements in the manufacture and production of polyhydric alcohols
IPC: C07C31/26
Filed: 1930-05-01
Abstract: Polyhydric alcohols, such as sorbitol or mannitol, are obtained by treating aldoses of natural origin, such as glucose, with hydrogen in the presence of water, a base metal-reducing catalyst and a quantity of alkali providing in the reaction mixture a hydrogen-ion concentration between pH 7 and 12, preferably between 7 and 9. The alkali may be chosen from substances giving an alkaline reaction with water such as alkali or alkaline-earth metal oxides or hydroxides or their alkaline reacting salts such as carbonates, silicates, borates or salts with other weak acids as fatty acids, aliphatic and aromatic sulphonic acids etc.; alcoholates, ammonia, or organic nitrogenous bases such as alkyl or alkylol amines, cycylic bases such as pyridine, or piperidine or aromatic bases such as aniline. Suitable catalysts are nickel, copper, cobalt, their alloys and oxides, which may be activated by the addition of one or more difficulty reducible metal oxides, e.g. oxides of chromium, cerium, titanium, molybdenum, tungsten, thorium or aluminium in a quantity of from 1 to 10 per cent of the base metal catalyst. The catalysts may be deposited on carriers such as fuller's earth, kieselguhr, active carbon, silica gel, earthenware sherds or other substances with a large superficial area. The quantity of water employed is at least that of the aldose and an addition of alcohols such as ethylene glycol or glycerol or other water-soluble organic solvents such as acetone may be made. Foaming agents such as saponin, or protective colloids may also be added. The reaction can be accelerated by warming, temperatures between 30-160 DEG  C. being employed. Pressures up to 90 atmospheres, but preferably between 10-20 atmospheres, may be used.
Patent GB-1248052-A (GB)
Title: Improvements in or relating to the treatment of glass sheets
Inventor: KAY SOLOMON ELIJAH
IPC: C03B23/031
Filed: 1968-03-20
Abstract: 1,248,052. Bending glass sheets. TRIPLEX SAFETY GLASS CO. Ltd., and S. E. KAY. 11 March, 1969 [20 March, 1968], No. 13544/68. Heading C1M. A glass sheet 1 having a sharp edge is heated preparatory to bending, and then is bent and, while gripped between complementary bending dies 3 and 4, a continuous peripheral margin of the sheet is exposed and further heated to cause rounding of the edges of said margin. The further heating may be effected by heating with a flame, e.g. of propane, supplied via burners 7. Alternatively, a conductive material, e.g. carbon, may be coated on to the said margin and electric current passed therethrough to heat the margin. The conductive material may be applied adjacent a score line in a larger sheet, along which score line the said larger sheet is broken to supply the glass sheet 1.
Patent GB-1383396-A (GB)
Title: Boiler feed water heater
IPC: F28F17/00
Filed: 1972-03-23
Abstract: 1383396 Boiler feed water heaters TOKYO SHIBAURA ELECTRIC CO Ltd 23 March 1972 [5 April 1971] 13627/72 Heading F4A In a boiler feed water heater having a chamber within a shell 11, feed water to be heated is introduced into U-shaped tubes 14 through openings in a tube plate 13 from an inlet chamber 19 and the feed water is heated by steam which can enter through an opening 15 in the chamber wall and the feed water thereafter is discharged through an outlet 22 in a manifold 20. At the same time water at a higher temperature than the feed water is directed into the chamber through inlet 26 so as to contact the tubes 14 only at a region adjoining the ends of the tubes. An outlet 18 in the chamber wall provides an outlet for water and condensed steam. The steam entering the opening 15 is directed through a zig-zag path determined by baffles 24 a pipe 30 acts to direct the water away from the parts of the tubes 14 in the vicinity of the opening and baffles 29 form a zig-zag path so that the water flows in the path indicated by the arrows and is exhausted through outlet 18. An alternative embodiment is disclosed in the Specification (Figs. 2 and 3, not shown) in which ducts are provided to guide the water entering the chamber through inlet 26 to prevent the water contacting the tubes 14.
Patent GB-1216978-A (GB)
Title: Elevator motor control
IPC: B66B1/06
Filed: 1969-03-14
Abstract: 1,216,978. Semi-conductor pulse and switching circuits. OTIS ELEVATOR CO. 14 March, 1969 [1 April, 1968], No. 13630/69. Heading H3T. [Also in Division H2] In a Ward-Leonard control system for a lift, resistors in series with the generator field are sequentially short circuited for acceleration by contactors having coils 1E . . . 4E which are energized in turn by electronic switching means responsive to repetitive impulses. The impulses are produced by a relaxation oscillator across a Zener diode Z 1 and comprising a unijunction transistor T1, capacitor C1 and resistors R2, S and 1EP; the latter may be short circuited by contacts 1E4 closed by the first contactor 1E so that subsequent ones are energized at shorter intervals. The "electronic switching means" comprises a pair of thyristors SCR1, SCR2 in a multivibrator circuit and connected through diodes D4 ... D7 to odd and even numbered contactor coils respectively. The impulses are applied to the triggers of SCR1 and SCR2 via diodes D1 and D2 respectively; the first pulse is passed by D1 because D2 is back biased by the potential on a capacitor C2, but when SCR1 conducts this potential is lowered so that the next pulse is passed by D2 to trigger SCR2. Conduction of either thyristor switches the other one off by commutating capacitor C3. The contactors have "hold-on" contacts 1E1 ... 4E1, interlock contacts 1E2 ... 3E2 and are sequentially de-energized by mechanically operated contacts SLS1 ... SLS4.
Patent GB-146848-A (GB)
Title: Improvements in or relating to apparatus for treating fluids with radium
IPC: A61K51/12
Filed: 1920-07-05
Abstract: 146,848. Miller, R. S., (Assignee of Williamson, H. M., and Alexander, S. H.). April 17, 1916, [Convention date]. Radiations, treating diseases with.-An apparatus for charging air with radium emanation is provided with an air-purifying chamber. As shown, the purifying-apparatus is integral with the stopper 7 of the vessel 5 containing a solution of a radium salt, and it consists of a depending vessel 10 containing for example a solution of potassium permanganate, an inlet pipe 13 opening below the surface of the liquid, and an outlet pipe 15 ending below the surface of the solution in the vessel 5. The stopper 7 is provided with an outlet 17 in which a control cock 18 may be fitted. On applying suction.at the outlet, air is drawn in through the pipe 13, bubbles first through the purifying-solution, and then through the radium-salt solution, being thus charged with emanation. To enable liquid charged with radium emanation to be delivered, the apparatus 5 is connected by flexible tubing 24 to a second vessel 6 containing water or other liquid and provided with inlet and outlet pipes 21, 22; these are carried by the stopper 23, and the outlet is connected by flexible tubing 25 to a mouthpiece 26. On applying suction at the mouthpiece, air charged with emanation is drawn from the vessel 5, bubbles through the liquid in the vessel 6, and the liquid, which is then charged with emanation,. delivered to the patient.
Patent GB-797969-A (GB)
Title: A method and apparatus for drying materials
Inventor: ONARHEIM THORD
IPC: B02C13/288
Filed: 1956-05-04
Abstract: 797,969. Drying fish meal &c. AKTIESELSKAP STORD. May 4, 1956, No. 13774/56. Class 34(2) Fish meal &c. after the expression of oil therefrom is dried during conveyance through a stationary drum 26, Figs. 3, 5, by a gaseous drying medium, e.g. a mixture of air and the products of combustion from a burner, at a temperature of from 200 to 400‹C., in which the meal is entrained, rotary arms 29, 47 mounted on a shaft 28 being provided for comminuting and dispersing the meal and means such as annular rings 31, 48, 49 having individually adjustable segments 32 for retarding the flow of the meal. The gaseous medium with the entrained meal is fed into the drum through a duct 14a, Fig. 2, and on entry is comminuted by triangular blades 30 mounted on the arms 29. In succeeding compartments of the drum, defined by rings 31, 48, 49, the meal is agitated by tapered arms 47 and in the final compartments is forced by blades 57 on arms 56 through the perforate end portion of the drum into a surrounding casing 59 from which it is withdrawn together with the gaseous medium and discharged into a cyclone separator. As shown in Fig. 2, the gaseous medium with the entrained meal is drawn off from the end compartment of the drum through a duct 60 by a fan 22 which discharges into the cyclone separator 23.
Patent GB-332659-A (GB)
Title: Improvements relating to concrete railway ties
IPC: B28B7/00
Filed: 1929-05-03
Abstract: 332,659. Yeomans, W. C. May 3, 1939. Moulds; moulding concrete railway sleepers.- An invertible concrete pot sleeper, with holes for tie-bars 3 and rail-securing bolts, and depressions near the rail seat for the rail clamps, is formed in a. mould consisting of a base 26 and; sides 27, 28. The sides are hinged at 29 and connected together by a hook 32 and eye 36. The sides have ledges receiving bars 43 with lugs tn form the depressions and holes for core-bars for the bolt-holes. Nuts 52 may be moulded into the base of the sleeper. 49, 50 are the reinforcing bars for the sleeper.