baber/WOPTO huggingface dataset:
Patent GB-428740-A (GB)
Title: A process for decolourising sugar juices
IPC: C13B20/12
Filed: 1934-07-10
Abstract: Sugar juices are decolourized by bringing them at elevated temperatures, for example, between 60 and 90 DEG  C., into contact with surface active materials such as active charcoal, bone charcoal, or active silica, a small quantity of hydrogen peroxide being previously added to the juice in such a way that after the passage of the juice through the surface active material the hydrogen peroxide is substantially used up.  The surface active material may be contained in a filter, for example, a charcoal filter.  Cane sugar, beet sugar, or wood sugar juices may be treated.  Examples are given.
Patent GB-614118-A (GB)
Title: Improvements in or relating to counting mechanism
IPC: G06M1/04
Filed: 1946-07-08
Abstract: 614,118. Reciprocating Motors. COUNTING INSTRUMENTS Ltd., PRIOR, F. J., and ALTMAN, W. July 8, 1946, No. 20296. [Class 35] [Also in Group XIX] An impulse-operated electro-magnetic motor for driving a counting-apparatus comprises an electromagnet, an armature rockably mounted in relation to the electromagnet on a knifeedge, a spring for urging the armature away from the magnet, and a pawl carried by the armature and co-acting with a ratchet wheel which rotates the counting mechanism. The magnet includes a coil 6, a pole 5 and a yoke 4, the upright pole 4a of which has its rear upper edge formed as a knife-edge for supporting the armature 7. Tongues 7b are formed on each side edge of the armature and ears 7c on its bent portion 7a. A spring 8 secured between the pole 4a and a limb 10a of an L-shaped frame 10 serves to hold the armature in place and return it to its normal position after it has been attracted. An extension 14a of the armature has pivotally connected to it an arm 15 which carries a specially shaped pawl 16 engaging a ratchet wheel 11 mounted on the limb 10b of the frame 10. This pawl and a retaining pawl 13 are urged inwards by a spring 18. A stop 17 prevents the pawl 16 from turning the ratchet wheel too far when the armature moves away from the magnet.
Patent GB-198933-A (GB)
Title: Electrodes and method of making same
IPC: C25B11/00
Filed: 1922-07-25
Abstract: 198,933. Scott, J. P. July 25, 1922. Electrodes.-Studs S or the like for supporting an electrode E for an electrolytic cell at a distance from a base plate P are secured to the base plate without perforating the latter. In one method, a wide conical flange on each stud is bent into shallow cup form and is then forced into an undercut recess in the plate. In other methods, the studs are electrically welded to the base plate, preferably several at a time. In order to ensure correct position during welding, each stud may have a central boss 10 fitting a recess in the plate, or the whole flange may fit in a recess. Alternatively a template laid on the base plate fits around the flanges of the studs. Welding- electrodes C, D are shaped so as to fit over the studs S and against the back of the base plate. The electrode E may consist of one or more perforated plates or layers of wire cloth which may be fused at their edges to form a solid border 17 and then welded to the studs S.
Patent GB-805295-A (GB)
Title: Organic acids
Filed: 1955-07-14
Abstract: The invention comprises compounds of the formula ROOC.(CH2)4.CH(SR1).CH2.COOH (wherein R is a hydrocarbon group and R1 is an acyl group), and their preparation by reacting the corresponding 7-monoester of 7-carboxy-2-heptenoic acid with a thiolcarboxylic acid R1SH. The reaction may be carried out in a solvent such as benzene, chloroform, carbon tetrachloride, toluene, dioxan or ethanol at temperatures of from room temperature up to about 70 DEG  C.  In examples: (1) thioacetic acid and 7-carboethoxy-2-heptenoic acid at room temperature give 3-acetylthio-7-carboethoxyheptanoic acid; (2) thiobutyric acid and 7-carbophenoxy-2-heptenoic acid in benzene at room temperature give 3 - butyrylthio - 7 - carbophenoxyheptanoic acid.  Reference is also made to the preparation of 3-propionylthio - 7 - carbomethoxy -, 3 - benzoylthio - 7 - carbopropoxy - and 3 - phenylacetylthio - 7 - carboethoxy - heptanoic acids and to starting materials in which R has the additional values of benzyl and vinyl and R1 has the additional values of valeryl and hexanoyl.
Patent GB-516827-A (GB)
Title: Cardboard box for eggs
IPC: B65D85/32
Filed: 1938-07-11
Abstract: 516,827. Boxes. JACOBSEN, P. E. V. July 11, 1938, No. 20484. Convention date, Sept. 18, 1937. [Class 18] Longitudinal, troughshaped walls 6, 7 of an egg box in which each egg rests in a separate compartment are folded flat inserted lengthwise throug] slits 8 in transverse wall 5, and allowed to expand to a V-shape, Slits 14, 15 in the walls 6, 7 register with the walls 5. The slits 8 comprise narrow portions 9 and notches 23 which guide the doubled edges of the walls 6, 7 during insertion. A wrapper 12 encloses the whole and tuck-in flaps 11 thereon engage incisions 10 in the walls 5. The centre of the base of the wrapper may have slits engaging tongues on the walls 5. The base of the V may be blunt and the slit part 9 may be a mere cut at its lower end. Holes 16 and 18 in the wrapper and 17 in the walls 6, 7 permit inspection by light rays (arrows, Fig. 1). The folding and insertion of the walls 6, may be effected automatically.
Patent GB-666441-A (GB)
Title: Stentering chain having combined clip and pin members for stretching textile fabrics
IPC: D06C3/04
Filed: 1949-08-06
Abstract: 666,441. Stentering machines. DECK, P. Aug. 6, 1949 [Jan. 13, 1949], No. 20494/49. Addition to 611,166. Class 42 (i). In a stentering chain one combined clip and pin member. as set forth in the parent Specification, instead of being formed integrally with a chain link, is mounted on upward extensions 2 of each pair of adjacent link pins 2b of a roller chain. As shown, each pair of pins 2b, to which the bent bracket 1 of a clip is secured by nuts 20, is fixed to a connecting-plate 2c which serves, together with the base of bracket 1, to provide the flanges of a roller chain link connected to the next similar link by a link 2a. When the clip arm 3 is in use, arm 12 covers the pins 9; when the pins are to be used, arm 12 is swung up, as in the parent Specification, to move the clip arm 3 to an inactive position.
Patent GB-205527-A (GB)
Abstract: 205,527. Brackett & Co., Ltd., F. W., and Brackett, F. W. May 18, 1922. Travelling-band strainers.-In apparatus comprising an endless band formed of perforated plates and travelling round drums, the plates are connected at their ends to transverse bars a carrying, or fixed to the axles of, rollers e which engage in toothed wheels at the ends of the drums, and the bars are clamped to wire ropes k by plates : i and bolts h. As shown in Fig. 1, ar axle d carrying a roller e is fixed on the hollow end of a bar a by pins b, c. The roller e is mounted freely on the axle, which is bored tc form a grease box f closed by a plug g. As shown in Fig. 4 each plate has at the upper end one or more metal hooks l of trough shape for receptior of the bar a and at its lower end one or more brackets m which rest on the bar a below.
Patent GB-1070761-A (GB)
Title: 6-fluoromethyl-í¸4,6-3-oxo-steroids
Inventor: ELLIS BERNARD
IPC: C07J1/00
Filed: 1965-05-17
Abstract: Novel steroids of the formula <FORM:1070761/C2/1> wherein R1 is hydrogen or methyl; R2 is fluorine chlorine, bromine, CF3, hydrogen or C1- 5-alkyl; and R3 is hydrogen, methyl or ethyl; are prepared by treating the corresponding 6-hydroxymethyl steroids with 2-chloro-1,1,2-trifluoro-triethylamine.  17a  - Chloroethynyl - 6 - hydroxymethyl - 17b  - methoxy - 19 - norandrosta - 4,6 - dien - 3 - one is prepared by reducing 17a -chloroethynyl-6-formyl 3,17b  - dimethoxy - 19 - norandrosta - 3,5 - diene (prepared from the corresponding 6-unsubstituted-2,5(10)-diene, phosgene and dimethylformamide) with sodium borohydride to the corresponding 6-hydroxymethyl compound and treating this with 2,3-dichloro-5,6-dicyano-benzoquinone. The corresponding free 17b -ols are prepared similarly.
Patent GB-234334-A (GB)
Title: Improvements in pneumatic hammers
IPC: B25D9/20
Filed: 1924-09-02
Abstract: 234,334. Marks, E. C. R., (Ingersoll-Rand Co. Sept. 2, 1924. Percussive hand tools.-The handle F of a percussive hand tool is secured to the barrel by means of bolts G.
Patent GB-893063-A (GB)
Title: Polymerization of vinylidene monomers
Inventor: LEVINOS STEVEN
IPC: C08F2/50
Filed: 1960-06-13
Abstract: Compounds containing the grouping CH2=C< are polymerized by exposing them to electromagnetic radiation having a wavelength of from 101 to 1010 cm. in the presence of an aromatic diazonium compound and a dye chosen from azo, cyanine, azanol, oxanol, styryl, hemicyanine and merocyanine dyes.  Polymerizable compounds specified are acrylamide, methacrylamide, N-ethanol acrylamide, acrylic and methacrylic acids, calcium acrylate, acrylonitrile, methyl methacrylate, methyl and ethyl acrylates, vinyl acetate, butyrate and benzoate, vinyl isopropyl and vinyl butyl ethers, vinyl pyrrolidone and mixtures of ethyl acrylate and vinyl acetate, acrylonitrile and styrene and butadiene and acrylonitrile.  The above compounds may be polymerized in admixture with small amounts of compounds containing two or more terminal vinyl groups such as divinyl benzene, divinyl ketone, triallyl cyanurate, methylene-bis-acrylamide and diglycol diacrylate. Numerous examples of suitable diazonium compounds and dyestuffs are provided.  The polymerization may be carried out in an aqueous medium or in bulk in the presence of a colloid carrier, e.g. gelatin, glue, casein, polyvinyl alcohol, carboxymethyl cellulose, saponified cellulose acetate and starch. The polymerizing radiation may be ultraviolet or visible light, gamma-rays or X-rays.  The examples describe the polymerization of mixtures of acrylamide and methylene-bis-acrylamide.  The process may be used in the production of polymeric photographic images, in which case the photopolymerizable composition is coated on a suitable support.
Patent GB-583426-A (GB)
Title: Improvement in curing butadiene copolymers
IPC: C08K5/08
Filed: 1944-10-25
Abstract: The rate of cure of a copolymer of butadiene and styrene with a member of the chlorinated class of vulcanizing agents such as tetrachlor parabenzoquinone is reduced by adding a small amount, preferably 0.01-4 per cent. of a thiuramdisulphide to the stock before cure.  The thiuramdisulphide has the general structure <FORM:0583426/V/1> in which both the terminal nitrogens are bonded to aliphatic hydrocarbon radicles such as alkyl, cycloalkyl or arylalkyl such as ethyl, butyl, amyl, cyclopentamethylene or benzyl, the preferred compound being a tetra-alkylthiuramdisulphide such as tetramethylthiuram disulphide, or a disubstituted thiuram disulphide such as dibenzyl thiuram disulphide.  Other substances which may be added to the mixes are fatty acid coated whiting, fine particle size whiting, mineral rubber, zinc oxide, stearic acid and an oxidizing agent such as lead peroxide.
Patent GB-236075-A (GB)
Title: Improvements in hat size reducers
IPC: A42B1/22
Filed: 1924-09-03
Abstract: 236,075. Cohen, L. Sept. 3, 1924. Bandeaux; hats, securing to head.-A crescent shaped bandeau for insertion into the rear of a lady's hat comprises a strip of spring metal 7 or the lika provided with prongs 8, 9 for engagement with the hat and maintained in the shape of a bow by elastic cord or webbing 10. A cord 15 may draw the centre part of the elastic inwardly, or the device may be inserted in a fabric covering of crescent shape.
Patent GB-872003-A (GB)
Title: Improvements in apparatus for the heat treatment of materials
IPC: B41F23/04
Filed: 1958-06-30
Abstract: 872,003. Drying fabric or like webs. TIMSON, E. A. June 25, 1959 [June 30, 1958], No. 20880/58. Class 34(1) Textile or paper webs are dried by rotatable and fixed burners 1, 3 respectively which operate independently of each other but in predetermined sequence related to the speed of relative travel between the webs and the burners by solenoid operated gas valves 5, 6 and switches 8, 9 activated by cams 13, 14 mounted on a shaft 16, which shaft is timed by a timer T synchronized with the speed control mechanism of an electric motor driving the webs. The burner 1 above the web is pivotally turnable about its longitudinal axis a by an air cylinder and piston device 10 which is controlled by a solenoid operated spring return air valve 11 timed from the timer T by a cam-actuated switch. 12. The sequence dictated by the timer T as the speed of the webs increases comprises opening the valve 5 to the burner 1 which at the rest position has its nozzle directed away from the webs, operating the valve 11 to rotate the burner towards the web and opening the valve 6 to the burner 3. The reverse sequence takes place on a slow-down of the electric motor. Further burners may be utilized as shown in dotted outline which are operated and controlled in a manner similar to the burner 1. Specification 872,004 is referred to.
Patent GB-218144-A (GB)
Title: Improvements in or relating to trousers presses
IPC: A47G25/72
Filed: 1923-08-17
Abstract: 218,144. Watts, J. R., (trading as Watts, J.). Aug. 17,1923. Trouser-presses.-In a portable type of press, a separating board F is employed around which the trousers are folded, a rod part G preventing a crease being formed at the fold. Pins K<1>, K<2> co-operate with bayonet slots H<1>, H<2> to position the board F. The pressure-producing device C, D and its co-operating surface on the upper board is described in Specification 177,929.
Patent GB-315104-A (GB)
Title: Improvements relating to gramophone records
IPC: G11B3/70
Filed: 1928-07-18
Abstract: 315,104. Celluloid Printers, Ltd., and Allport, K. P. July 18, 1928. Disc records comprising facing discs of celluloid with an intermediate printed paper disc visible therethrough are constructed with the printed disc of substantially smaller diameter than the facing discs which are consequently directly united around the printed disc when pressed under heat between dies carrying the sound traces. As shown in Fig. 3, the printed paper disc 3 is of smaller diameter and has a larger central aperture than the facing discs of celluloid. A suitable binder comprises amyl acetate, acetone, and methylated spirit, to which transparent celluloid scrap may be added. The facing discs may be of non-inflammable celluloid and one of them may be opaque, white, or coloured. The printed paper sheet may be built of two sheets stuck together back to back, and only one side may be printed, in which case one of the celluloid discs may be opaque.
Patent GB-238895-A (GB)
Title: Bearing metal alloys
IPC: C22C11/00
Filed: 1925-08-21
Abstract: 238,895. Neurath, J. [Firm of]. Aug. 23, 1924, [Convention date]. Alloys for bearings ontain about 65-77 per cent of lead, 3-14 per cent of tin, 10-27 per cent of antimony, and 0.7-2.5 per cent of arsenic.
Patent GB-1184107-A (GB)
Title: Improvements in or relating to Electric Capacitors
Inventor: CURTIS GORDON ALFRED
IPC: H01G4/38
Filed: 1967-05-05
Abstract: 1,184,107. Capacitors. BRITISH INSULATED CALLENDER'S CABLES Ltd. 3 May, 1968 [5 May, 1967], No. 21007/67. Heading H1M. A capacitor assembly comprises seriesconnected wound capacitor units 1 to 5 having their electrode foils offset and extending from the rolls as at 6 and 7, the units being separated and insulated from each other by the limbs of U-cross-sectioned members 8 to 12, and being so arranged that the electrodes at adjacent ends of adjacent pairs, e.g. 2, 3; 3, 4 and 4, 5 make contact with spring-loaded contacts 13, 15 and 14, housed in the bases of members 8, 11 and 9 respectively. The plurality of U-cross-sectioned members at either side of the assembly may alternatively be of integral construction. At the ends of the assembly, a half-sized U- member may be employed, e.g. member 18 embracing capacitor 1, or a dummy capacitor, e.g. 21, may be introduced. The width of the U-members is such as to permit the assembly to be reinforced by vertical tie-bars 24 passing through apertures in the members (Fig. 2, not shown).
Patent GB-460444-A (GB)
Title: Improvements in or relating to receptacles for containing substances in powder form
IPC: B65D39/00
Filed: 1935-07-27
Abstract: 460,444. Tins for containing powdered substances. BURTON, H. H., and JOHN BULL RUBBER CO., Ltd. July 27, 1935, No. 21344. [Class 18] A receptacle for powdered substances, e.g. powdered chalk for tyre repairs, has a discharge aperture c in the lid or upper portion of the container which is closed by a cylindrical piece d of indiarubber which may have a screw-thread on its exterior or may be normally of larger size than the aperture c. The rim of the aperture may have an annular depression or be turned inwards, the lid may be sealed by a strip b of adhesive tape or by solder &c., and the container may have no separable lid.
Patent GB-185005-A (GB)
Title: Loop-taker actuating mechanism for sewing machines
IPC: D05B57/32
Filed: 1921-08-12
Abstract: 185,005. Fairweather, W., (Singer Manufacturing Co.). Aug. 12, 1921. Lock stitching.-In order to allow the needle to rise above the work before the needle thread loop is substantially distended by the looptaker while at the same time employing a loop-taking beak of restricted length and therefore a correspondingly smaller oscillation of the loop taker, the motion of the looptaker is retarded at the same time of taking the loop by the employment of an actuating-mechanism therefor including a pitman formed in two unequal sections, the pivot point of which is constrained by a radius-rod. The loop-taker shaft 24 is driven from the main shaft 5 through a crank 26, links 27, 28 of which the upper is the shorter and the pivot 29 of which is constrained by a radius-rod 36, and cranks 30, 33 connected by a link 34 to a crank 35 on the shaft 24. The effect of the linkage 27, 28 is to cause a dwell in the movement of the link 28, and therefore of the looptaker, as the crank 26 is passing through its highest point and an acceleration while passing through its lowest point. The shuttle having a beak 18, 17 supports a bobbin-case 19 and is driven by a shuttle-driver 23 mounted on the shaft 24.
Patent GB-206254-A (GB)
Title: Improvements in or relating to sleepers for railways, tramways and the like
IPC: E01B9/32
Filed: 1923-05-02
Abstract: 206,254. Davis, F. J. May 2, 1923. Sleepers, securing rails to; chair keys.-A sleeper b is connected to a flatbottomed rail a by a key k adapted to extend transversely of the rail beneath an upstanding projection m formed from the sleeper, the projection being provided with a tongue o adapted to be bent into engagement with the end of the key when the latter is in position. The key may be formed with a recess n to receive the tongue o. The projection m may be in the form of a loop, as shown, oi may consist of a pair of lugs provided with one or two tongues. Both edges of the rail may be secured by transverse keys or, as shown, one of the edges may be engaged beneath a pressed-up lug h on the sleeper.
Patent GB-322185-A (GB)
Title: Improvements in or relating to method and apparatus for activating and revivifying spent activated carbon
IPC: C01B31/08
Filed: 1928-07-25
Abstract: 322,185. White, A. E., (Naugle, J. J.). July 25, 1928. Electrode furnaces; furnace and oven details.-In a furnace for producing active carbon, the charge is fed from a hopper 20 to an open trough 1 lined with refractory material 4 and having a bottom formed of cast iron plates 3, 5, the plates 3 remote from the feed end being water cooled. Electrode rakes 21, 22 and rakes 17, 18 extend into the material in the trough and are attached to a bar 9 which is carried on cross-bars 11 which have at their ends wheels 12 moving on tracks 13 on each side of the trough. The bar 9 is reciprocated by a link 15 connected at one end to a member 14 attached to the bar and at the other end to suitable driving mechanism, for example a crank 16. The material is electrically heated by current passing from one to the other of the electrodes 21, 22 through a substantial thickness of the material to the iron bottom and through the material again. An auxiliary heating means consisting of gas burners 6 is provided below plates 5. The charge may be heated to between 425‹ C. to about 475‹ C., for example 450‹ C. The bottom plate 5 may if desired be of brickwork or other insulating material, the current passing through the charge from one electrode to the other. In this form the electrodes need not be raised from the bottom. The electrodes 21, 22 are secured to the bar 9 by clamps 23, 24 insulated from the bar by mica sheets &c., and are electrically connected to the current source through uprights 25, 26 and bars 27, 28 which slide through slots in electric brushes 31, 32. A bridge member 33 carries the brushes 31, 32, mica or other insulation being provided therebetween. The rakes 17 are shaped to. propel the charge forward, the rakes 18, 21, 22 being flat. The rakes 21, 22 may be shaped like the rakes 17. The material falls at the discharge end to the floor or to a bin or conveyer. For revivification purposes, where less combustion is desirable, the trough 1 may be covered, and air admitted under control through dampers at the side; a flue is provided to remove the combustion products.
Patent GB-761044-A (GB)
Title: Manufacture and use of acid-base indicator dyestuffs
IPC: C09B43/00
Filed: 1952-08-27
Abstract: The Specification describes the introduction of the residue <FORM:0761044/IV(b)/1> into dyestuff intermediates, with subsequent conversion to the dyes (see Group IV(c)), by the action of formaldehyde and iminodiacetic acid, simultaneously or successively, or by halomethylation followed by reaction with iminodiacetic acid. An example describes the reaction of p-acetylaminophenol with formaldehyde and iminodiacetic acid, together with hydrolysis of the acetylamino group to give the dihydrochloride of the compound of the formula <FORM:0761044/IV(b)/2> Specification 718,509 is referred to.ALSO:The invention comprises acid-base indicator dyestuffs of the azodyestuff and triphenylmethane series which contain the residue of the formula:- <FORM:0761044/IV(b)/1> in at least one position vicinal to a phenolic hydroxy group. They are made by (1) condensing an azo - or triphenylmethane dye having at least one hydrogen atom in a position vicinal to a phenolic hydroxy group with formaldehyde or a compound yielding formaldehyde and iminodiacetic acid or a functional derivative thereof, or (2) by reacting the said dye with formaldehyde or a compound yielding formaldehyde to form a methylol compound and condensing the methylol compound with iminodiacetic acid or a functional derivative thereof, or (3) halomethylating the dye and condensing the halomethyl body with iminodiacetic acid or a functional derivative thereof.  The above reactions may also be performed on dyestuff intermediates (see Group IV(b)), with subsequent synthesis of the dyestuffs.  In examples, (1) phenolphthalein, #s - cresolphthalein, and the dye 4 - chloraniline --> phenol are each reacted with iminodiacetic acid and formaldehyde in presence of caustic soda; (2) p - acetylaminophenol is similarly treated, followed by hydrolysis of the acetylamino group to give a compound of the formula:- <FORM:0761044/IV(b)/2> which is diazotized and coupled with phenol or resorcinol.  An example describes the estimation of barium in solutions of compounds thereof by adding an indicator dye as above and noting the colour change when sufficient of a barium complex-forming agent, such as ethylene diamine tetracetic acid disodium salt or a salt of diamino - diethyl - glycol ether tetracetic acid has been added.  Other dyestuffs specified as starting materials are 2, 4 - dioxy - 41 - nitro - 1, 11 - azobenzene, 2, 4 - dioxy - 1, 11 - azobenzene - 41 - sulphonic acid, 4 - oxy - 31 - or 41 - nitro - 1, 11 - azobenzene - 31 - carboxylic acid, dichloro - or dibromo - phenol sulphophthalein, thymol sulphophthalein, #s - cresolsulphophthalein, #s - or m - cresol phthalein thymolphthalein.  Specification 718,509 [Group IV(b)] is referred to.