baber/WOPTO huggingface dataset:
Patent GB-498165-A (GB)
Title: Dicyandiamide-formaldehyde condensation products
IPC: C08G14/06
Filed: 1937-08-25
Abstract: Water-resistant resins are prepared by reacting 2,75 to 3,5 mols., preferably 3 mols., of formaldehyde with 1 mol. of dicyandiamide under alkaline conditions, the reaction being carried out at boiling temperature or in the presence of added alkali, and being continued until at the reaction temperature and before cooling a gel or precipitate is formed.  Water-soluble bye-products may be removed by hot water, which may contain sodium sulphite.  There may be added fillers, e.g. wood meal, cellulose, cotton; colouring matter; fluxing agents; and hardening accelerators.  Similar resins may also be prepared by alkaline condensation of dicyandiamide, phenol, and formaldehyde using, to 1 mol. of dicyandiamide, 2,75 to 3,5 mols. of formaldehyde, the formaldehyde being at least 1 mol., in excess of the total mols. of phenol and dicyandiamide.  The phenol, or, alternatively, a phenol-formaldehyde resol, may be added during the dicyandiamide-formaldehyde condensation.  Preferably the resol has been prepared by condensing phenol with less than an equimolecular quantity of formaldehyde for a time longer than that for which the dicyandiamide-formaldehyde condensation has been in progress.  In examples: dicyandiamide and formaldehyde are condensed, with or without the addition of cellulose or wood meal; dicyandiamide, phenol, and formaldehyde are condensed by boiling; dicyandiamide and formaldehyde are condensed in the presence of caustic soda, a resol added prepared by condensing phenol and formaldehyde in the presence of ammonia, and the condensation continued.
Patent GB-1124930-A (GB)
Title: Improvements relating to tubing and piping of thermoplastics material
Inventor: SANDS DAVID HAROLD
IPC: B29C57/06
Filed: 1966-05-25
Abstract: 1,124,930. Moulding grooves in pipes. CHEMIDUS PLASTICS Ltd. 2 May, 1967 [25 May, 1966], No. 23282/66. Heading B5A. [Also in Division F2] An internal annular groove or recess 17 e.g. for the reception of a sealing ring at a pipe joint, is formed in the heat softened end of a thermoplastic pipe 1, e.g. a cold water or rainwater pipe of P.V.C., or of an enlarged socket end 2 thereof around the exterior whereof is clamped a split cavity mould 3, having an internal annular cavity corresponding to the external profile of the desired groove 17, and the interior whereof is blocked by a mandrel 6 comprising bolted together members 8, 10 which define an annular space 7 therebetween housing an expandable moulding ring 14 e.g. of natural rubber or neoprene. The ring is radially expanded to deform and mould the pipe wall into the annular cavity by the thrust from the inclined surface 12a of a frusto-conical member 12 which is displaced axially upon an internal cylindrical portion of mandrel 6 by rods 13, and which member 12 either acts directly upon the interior of moulding ring 14 or upon the mating internal surface 15 of a thrust ring. The latter comprises a plurality of separate rigid thrust sections (15b) (Figs. 3 and 4, not shown), each secured by bonding or mechanical engagement at the circumference thereof to the inner edge of ring 14 which is expanded by their radial movement. The edges 3a of the cavity are rounded to reduce strain at the corners 17a of the groove 17. Localized thinning of the pipe wall may be reduced by swaging to increase the socket 2 thickness after forming the socket or by the heat shrink fitting thereon of a thermoplastic sleeve prior to formation of the groove 17 and which operation may be followed by heating of the mould and combined pipe and sleeve and forming a plain socket 2 and the groove 17 either immediately thereafter, or after further heating of the pipe and sleeve. The external surface of the ring 14 is cylindrical. In an alternative embodiment (Figs. 5-8, not shown), the thrust ring (15) is provided with a concentric passage (18) extending through each section (15b) thereof and wherein is located a coil spring (19) which acts to contract the thrust ring (15), which may or may not be attached to the moulding ring 14.
Patent GB-201066-A (GB)
Title: Improvements relating to mechanism for grinding crankshafts
IPC: B24B5/42
Filed: 1922-08-28
Abstract: 201,066. Thomas, A., and Deutsche Werke Akt.-Ges. Aug. 28, 1922. Disc apparatus.-A crank-shaft t is mounted between a poppet z and a chuck s, secured to a drum r, which is fast on a spindle p and is rotated by a key u of a cylinder d, in which it slides. The cylinder d is rotated in rings c of a slide-rest b by a belt e<2>, pulley e<3>, feathered shaft f, and gears e<1>, e. Automatic feed of the rest b is obtained by the action of a shaft s<1>. An eccentric h is adjustably secured to the end of the cylinder d, and the strap i thereof forms a slide vertically movable in guides g, which are connected by a plate l transversely slidable on the rest b. A grinding-disc k mounted in a casing k<1> is driven by a belt o, and the casing is mounted on slideways on the slide i, being adjustable thereon by means of a hand-wheel and screwed spindle. The grinding-disc is thereby caused to follow the path of the crank-pin.
Patent GB-185408-A (GB)
Title: Apparatus for the determination of the specific gravity of solid bodies
IPC: G01N9/02
Filed: 1922-08-28
Abstract: 185,408. Walberer, K. Sept. 2, 1921, [Convention date]. Specific-gravity estimating-apparatus.- Relates to apparatus for determining the specific gravity of solids by finding their weight and volume. The weighing-means comprise a scale-pan d attached to one arm b of a lever, the arm c of which has a forked extremity engaging a weight e which can move along an arcuate guide f. The rear face of the weight e is adapted to be engaged by a spring-urged locking-strip g which can be moved out of engagement by depressing a button m and is released when the weight e has moved to its correct position so as to lock the weight. The weight e is carried by an arm n operating a pointer o moving over a scale q carried by an arm r which is connected by links s to the stem t of a float u immersed in the vessel v in which the test bodv is inserted for determination of volume. The scale q is thus moved in accordance with the volume of the test body so that the specific gravity is obtained from a single reading on the scale. The apparatus is particularly intended for determining the specific gravity of eggs.
Patent GB-229253-A (GB)
Title: Improvements in and relating to the vulcanisation of rubber
IPC: C07D277/82
Filed: 1924-10-03
Abstract: An arylaminothiazole is employed as an accelerator of vulcanization. According to an example, anilinobenzothiazole is employed. Homologues containing lateral groups in the benzene nucleus or in the benzothiazole may also be used.  These substances may be obtained by the action of oxidizing agents as bromine or chlorine on substituted thioureas.
Patent GB-214545-A (GB)
Title: A protecting hood for the stoppers of vacuum-insulated bottles
IPC: A47J41/00
Filed: 1923-09-19
Abstract: 214,545. Schmidt, P. F. Sept. 19, 1923. Fitted with drinking cups; protective devices, external.-The stopper of a vacuum flask is protected by a sheet-iron hood a within which a porcelain drinking cup c, formed with a projecting rim, is secured by a snap fastening d adapted to leave a small air space between the cup and the hood. A handle h, normally placed around the stopper i, is adapted to be secured to lugs on the fastener d when the cup is required for use. The hood is secured to the vessel by a bayonetjoint fastening f.
Patent GB-532061-A (GB)
Title: Improvements in or relating to a process of preparing nodular or coherent masses from finely divided siliceous materials in the manufacture of siliceous bodies and to providing a glass batch material
IPC: C03C1/02
Filed: 1939-08-15
Abstract: 532,061. Glass manufacture. STEVENS, A. H. (Garbisch, N. S.). Aug. 15, 1939, No. 23541. [Class 56] Relates to a method of utilizing the waste sand, mixed with powdered glass, gypsum &c. which results from the grinding of plate glass. According to the invention, the waste is mixed, after treatment, to remove the iron, with suitable fluxes to form a glass batch, and the mixture is then formed into nodules or briquettes which are melted to form glass. A suitable flux may comprise 17.5 parts of calcium carbonate, 15.5 parts of soda ash, and about 1.8 parts of salt cake, and sufficient water may be added with the flux to agglomerate the mixture. Plaster of Paris may be included as a bonding medium.
Patent GB-353716-A (GB)
Title: Improvements in radial cylinder internal combustion engines
IPC: F01L1/42
Filed: 1930-08-06
Abstract: 353,716. Force - feed lubricating. CHEVRON MOTOR CORPORATION, 11901, 15th Avenue, College Point, New York, U.S.A. Aug. 6, 1930, No. 23563. Convention date, Aug. 6, 1929. [Class 12 (iii).] In a radial-cylinder internal-combustion engine, particularly for aircraft, an oil pump 31 having both pressure and scavenger sections, is driven from the end of a countershaft 24, which also carries a wheel 25 gearing with a pinion 26 on the crank shaft.
Patent GB-479592-A (GB)
Title: Improvements in the construction of bogie trucks for railway and like vehicles
IPC: B61F5/08
Filed: 1936-08-27
Abstract: 479,592. Railway - vehicle bogies. SHEFFIELD. G. H., and SHEFFIELD & CO. (ENGINEERS), Ltd.. G. H. Aug. 27, 1937, No. 23570. [Class 103 (vi)] The Frame of a railway bogie is built up of a pair of side frames a which are connected only by an upper and a lower transverse member c, d respectively, each having its major axis horizontal. Preferably, as shown, the members c, d are in the form of shallow channels facing each other and having their flanges secured direct to the side frames without the intervention of ties. In addition the flanges may be riveted or otherwise secured to vertical plates f completing the transom, while the lower transverse beam d may be lightened by providing apertures e in it. The bearing plates h are mounted upon tubular sleeves g which pass through openings in the upper beam c and are supported by springs arranged between springs caps k, i, the arrangement permitting the springs to be removed laterally through the side frames. Specification 259,021, [Class 103 (vi)], is referred to.
Patent GB-443348-A (GB)
Title: Improvements in or relating to the control of the fuel supply to internal combustionengines
IPC: F02M69/00
Filed: 1935-08-22
Abstract: 443,348. Oil engines; regulating. BAGNULO, A., 54, Rue Armand, Courbevoie, Seine, France. Aug. 22, 1935, No. 23586. Convention date, Nov. 15, 1934. [Classes 7 (iii) and 7 (vi)] In means for controlling the fuel supplied to the cylinders in accordance with the pressure in the air-supply conduit, the fuel nozzle 9 is controlled by a needle valve 10 connected to a piston 11 subjected by a connection 14 to the air pressure, preferably at a point between a manually-actuated throttle 16 and an automatic eccentrically - mounted throttle 17 in the air-supply conduit 15, a small quantity of air being drawn in with the fuel, through a Venturi 8, which is also adjusted by the valve 10. The rich mixture thus formed is heated in passage 7 and enters past a valve 6 into a hot bulb 3, provided with a sparking-plug 5 and with a Venturi connection 4 to the cylinder.
Patent GB-681178-A (GB)
Title: Improvements in and relating to power operated control systems for aircraft
IPC: B64C13/00
Filed: 1949-09-13
Abstract: 681,178. Fluid-pressure servomotor-control systems. BOULTON PAUL AIRCRAFT, Ltd., and NORTH, J. D. Sept. 12, 1950 [Sept. 13, 1949], No. 23594/49. Class 135. In a power-operated aircraft control system comprising a servo tab 4 hinged to an aircraft control surface 5 and coupled to the pilot's control column 1, and with a power-operated servo system connected between the servo tab and the control surface so as to actuate the latter in accordance with the actuation of the servo tab, the servo tab and the control surface are connected to the input elements of a differential, and the output of the latter is used to control the servo system. When the column 1 is moved, besides actuating the servo tab, it moves one input 10 of a gear differential, and as the other input 11 of the differential is coupled to the control surface 5, the carrier 18 of the differential will be moved in accordance with the displacement between the column 1 and surface 5. The movement of the carrier is transmitted through gearing 19 and a cam and follower 21 to operate a hydraulic follow-up servo mechanism 25 which actuates the controlling member of a variable delivery reversible flow hydraulic pump 26 of the rotating radial piston type with eccentric reaction ring. Liquid under pressure from the pump is applied to a jack 27 which moves the control surface 5, and movement of the latter is transmitted back to differential element 11 as a follow-up signal to neutralise the system. The gear differential may be replaced by a lever type differential.
Patent GB-798558-A (GB)
Title: Improvements in ambulances
Inventor: LOMAS AUBREY
IPC: A61G3/00
Filed: 1955-08-17
Abstract: 798,558. Ambulances. LOMAS, Ltd., H. Aug. 16, 1956 [Aug. 17, 1955], No. 23649/55. Addition to 757,675. Drawings to Specification. Class 108(1) The runways of a stretcher carrier as described and claimed in the parent Specification are made of sufficient width to accommodate stretchers of British, French or American design and are also provided with pairs of holes to receive a locking pin.
Patent GB-927823-A (GB)
Title: Process for the manufacture of l-lysine or salts thereof
IPC: C07C/
Filed: 1960-07-06
Abstract: L-Lysine or a salt thereof is prepared by hydrolysis of an aqueous solution of L-a -amino-e -caprolactam with a strong base, e.g. sodium or potassium hydroxide.  Sodium or potassium lysinates so obtained may be passed over an ion exchanger to give L-lysine, which may be subsequently converted to the calcium or hydrochloric acid salt.
Patent GB-788470-A (GB)
Title: Improvements relating to bottle-filling machines
IPC: B67C3/06
Filed: 1955-08-17
Abstract: 788,470. Bottling. FOX, D. P. S., and CLARKE, W. A. Aug. 10, 1956 [Aug. 17, 1955], No. 23702/55. Class 126(2). In order that a counterpressure bottling machine can be used to fill bottles of different heights to the same neck level, the filling heads 32, the liquid reservoir 19, and the filling level controller 20, which is of the liquid column type, are carried by a common member 22 vertically adjustable relative to the machine table 10 by screw jacks 23. Jacks 23 are operated in unison through a sprocket chain 27 and one jackshaft has a gear 31 rotatable through a worm by a handle 28. Specification 746,585 is referred to.
Patent GB-1466096-A (GB)
Title: Calorie-free dipeptide sweetening composition
IPC: A23L27/30
Filed: 1974-05-29
Abstract: 1466096 Dipeptide sugar substitute composition CUMBERLAND PACKING CORP 29 May 1974 23788/74 Heading A2B A sugar substitute composition comprises (a) one part dipeptide sweetener, (b) 1/25-6 parts by wt of potassium bitartrate and/or sodium bicrabonate and/or potassium bicarbonate and (c) 5-50 parts by wt of glucono delta lactone, and/or sodium gluconate and/or potassium gluconate. Up to 50% of the dipeptide sweetener may be replaced by saccharine artificial sweetener.
Patent GB-170712-A (GB)
Title: Improvements in and relating to mechanism for opening and closing doors and the like
IPC: E05D15/30
Filed: 1920-08-14
Abstract: 170,712. Tacoma, J., and Vleeschouwer, C. de. Aug. 14, 1920. Addition to 123,790. Sliding doors.-A door &c. operated by mechanism arranged as described in the parent Specification is supported by a roller or wheel 14 running on a straight track 25 adjacent to the side of the show-case &c. The supporting-bolt 10 runs in a slot 26 in the floor of the case, dust being excluded from the case by a bar 27, which normally covers the slot 26 but is automatically pressed aside by the bolt 10 when the door is moved from its closed or open position.
Patent GB-1334623-A (GB)
Title: Lubricating arrangements in internal vibrators
IPC: F16N7/04
Filed: 1971-04-19
Abstract: 1334623 Lubricating vibrators WACKER WERKE KG 19 April 1971 [14 March 1970] 23820/71 Headings F2A and F2X A vibrator has a hollow cap 21 which constitutes a lubricant reservoir which is separated from the parts to be lubricated by a wall in which there is a nozzle 23 through which lubricant is urged by the oscillation of the vibrator, e.g. as a result of the movement and the resultant increase in temperature causing atomization of the lubricant. A deflector 22 may be provided to prevent lubricant surging through the nozzle 23.
Patent GB-203515-A (GB)
Title: A device for supplying dry food in the form of grains, peas or beans, or meals of various kinds to animals such as pigs
IPC: A01K5/02
Filed: 1922-09-04
Abstract: 203,515. Napier, W. E. Sept. 4, 1922. Feeding-appliances for animals.-Relates to apparatus of the kind wherein food is not delivered from the hopper to the trough until the animal presses against a movable part, and consists in mounting the hopper upon a pivot and providing means for pressing it against an abutment that closes the food passage when freed by the animal. The rectangular wooden or metal hopper a with removable lid m and depending pusher n has a delivery mouth d and is so mounted between similarly depending side members l that it is out of centre upon the pivots c, whereby it presses against a front stop h closing the delivery mouth, until the animal, by pressure against the pusher n, swings the hopper rearwards towards a back-stop k adapted to shake the hopper and free the food which falls into the trough b. Adjustment of the delivery mouth can be effected by a sliding plate e, clamped by a bolt p. The position of the pivots may be adjusted, to vary the force necessary to swing the hopper back, there may be a number of hoppers mounted on a single pivot-rod in a commonframe, and there may be a cross-board, on which the animal stands, fitted between extended bearers s.
Patent GB-1388176-A (GB)
Title: Method of making whiskers
IPC: C30B29/62
Filed: 1972-05-22
Abstract: 1388176 Silicon carbide whiskers LONZA Ltd 22 May 1972 [20 Aug 1971] 24000/72 Heading C1A A method of making silicon carbide whiskers comprises spreading on a substrate a layer of a mixture of natural, largely gengue-free graphite having carbon content 80-98%, iron 0À2-5%, and a grain size 5-200 microns with a synthetic or natural carbonizable binder; the layer is allowed to dry and carbonize; a gaseous mixture containing carbon, hydrogen and halogen is simultaneously contacted at elevated temperature with the layer and with a powder containing silicon and substantially free from iron, silicon being thereby evaporated into the gas and the growth of silicon carbide whiskers on the layer thereby caused.
Patent GB-685198-A (GB)
Title: Improvements in apparatus for distributing powdered or granular substances
IPC: A01C15/06
Filed: 1951-10-15
Abstract: 685,198. Manure-distributers. PLANT, F. W. Oct. 15, 1951. No. 24019/51. Class 6 (i), A plant duster, carried on a tractor, comprises an elongated hopper 10 having depending tubular nozzles 28, each nozzle being connected to the hopper by a cylindrical portion 12 in which reciprocates a piston 33 having perforations or valves which allow powder, to pass therethrough, the powder being expelled through the nozzles by the down-strokes of the pistons. The hopper is supported from the rear of the tractor and the pistons are driven from a shaft 18 carrying a wheel 21 which bears against one of the tractor wheels 22. The shaft also carries cams 25 which drive the spring-loaded piston-rods 26. The nozzles 28 extend at about 45 degrees to the cylinders 12 which include flanges, 29 clamped by a plate 31 secured to the bottom of the hopper: by loosening the plate the nozzles can be rotated about vertical axes. The pistons may include flap-valves or simple perforations. The hopper is fitted with a false floor 36 sloping downwardly to each orifice.
Patent GB-783024-A (GB)
Title: Method of and apparatus for manufacturing folded boxes
IPC: B31B50/00
Filed: 1955-08-22
Abstract: 783,024. Cutting webs. BAHLSEN, W. Aug. 22, 1955 [Sept. 27, 1954], No. 24064/55. Class 31 (1). [Also in Group XVII] In a box-making machine (see Group XVII) in which mandrels thrust a paper web 19 into pockets 4 in a wheel 3, the web is cut by means of vertically reciprocating knives 20 between each pair of pockets. The knives are mounted in the wheel and operated by a cam 24 and followers 23.
Patent GB-388803-A (GB)
Title: Transformer
IPC: H01F27/26
Filed: 1931-08-28
Abstract: 388,803. Transformers. LARSEN, K. A., 1, Kobenhavnsvey, and CASPERSEN, W. C. C. J., 37, Nyportstraede, both in Koge, Denmark. Aug. 28, 1931, No. 24180. [Class 38 (ii).] In a transformer for use in wireless and like apparatus, the windings 11 are provided with pintype terminals 12 co-operating wit h contact elements 5 located in the space between the parts 1, 2 of a divided base and secured to the terminals 7. The core is divided in order that the windings may be readily removed, the upper part being normally retained in position by a cover 13 secured by spring tongues 14 engaging recesses 17 in the base, a spring 18 being inserted between the cover and the upper core part.
Patent GB-1359928-A (GB)
Title: Low frequency multi-phase sinewave generator circuit
IPC: H02M7/49
Filed: 1972-05-23
Abstract: 1359928 Inverting J W BATES 23 May 1972 [28 Oct 1971] 24183/72 Heading H2F An inverter for providing a three-phase substantially sinusoidal stepped wave comprises a major three-phase inverter 4 comprising switching devices S1 ... S6, providing three-phase square waves and a minor three-phase bridge 4<SP>1</SP> comprising switching devices S1<SP>1</SP>...S6<SP>1</SP> arranged to provide additional pulses for combining with the square wave from the major bridge 4 so as to provide the required wave forms at A, B, C. Each bridge circuit comprises six transistors having inverse diodes (Fig. 5, not shown) and three primary windings 20, 22, 24 and 20<SP>1</SP>, 22<SP>1</SP>, 24<SP>1</SP> of two three-phase transformers, the secondary windings of which are combined so as to produce the required output at terminals A, B, C. In Fig. 6 (not shown) a single threephase transformer is employed, the primaries being connected as shown in Fig. 1 to either the major or minor bridge. Fig. 2 (not shown) relates to the conduction periods of the various transistors in the two bridges so as to provide the required stepped sinusoidal wave form.
Patent GB-317989-A (GB)
Title: Improvements relating to sandwich dishes or the like
IPC: A47G23/06
Filed: 1928-08-23
Abstract: 317,989. Greenberg & Co., Ltd., I. S., and Greenberg, M. S. Aug. 23, 1928. Stands.-A sandwich or other dish 1 of the kind which is divided into compartments by partitions, has the partitions 2, 3 detachably engaged in intersecting slots 8, 9 in a junctionmember 6, which may rest on the dish, or which may be secured thereto, as by means of a wing- nut 12 engaging a threaded extension 11 at its lower end. The junction-member 6 may be formed at its upper end into a handle 7, and the slots 8, 9 therein are of sufficient height to permit the partitions to be moved vertically upwards sufficient for disengagement from one another. Any number of partitions may be provided, and any desired number may be detached, as may also be the junction member 6. In this latter case, the hole in the base of the dish may be covered by a disc having a threaded extension for engagement by the wing-nut 12.