baber/WOPTO huggingface dataset:
Patent GB-652701-A (GB)
Title: Support of workings in underground development
IPC: E21D17/086
Filed: 1948-03-15
Abstract: 652,701. Mine roof supports. ETUDES ET RECHERCHES INDUSTRIELLES ET SCIENTIFIQUES, E.R.I.S. March 15, 1948, Nos. 7782 and 7783. Convention dates, March 20, 1947 and March 9, 1948. [Class 20(ii)] A supporting system for mine &c. roofs comprises a succession of links S<SP>1</SP>-S<SP>11</SP>, Fig. 9, detachably hinged to each other in chain formation and adapted to be locked together to form a rigid beam which is supported against the roof by props E<SP>1</SP>, E<SP>2</SP>. The arrangement is such that as the working face F<SP>1</SP>, recedes, links S', S<SP>2</SP> &c. are detached in turn from one end of the chain and joined up with the link S" at the working face so that these can be locked in the support position. Alternatively an endless chain of links may be used. Each link comprises a main: body of I-shaped cross-section having a web 11, Fig. 1 and upper and lower flanges 11(a), 11(b), the latter having housings 12 to receive projections provided on the head of the prop. The main body is extended at one end by a web 13, Figs: 1, 2, and at the opposite end by a yoke 14 adapted to receive between its arms the web 13 of an adjacent link. The two arms of the yoke, shaped at their lower ends as shown in Fig. 1, are connected by a spindle 15 and have openings 16, 17 assuming together the shape of a wedge. The terminal web 13 is formed with a hook 21 adapted to engage the spindle 15 of an adjacent link and has a wedge-shaped opening 20 which is adapted to be in register with the openings 16, 17 of the yoke of an adjacent link. Locking between two adjacent links is effected by a wedge C, Fig. 8, which passes through the openings 16, 17, 20, the arrangement being such that the wedge can assume any intermediate position between the extreme positions C<SP>1</SP> and C<SP>2</SP> in which positions the upper flange 11a of one link assumes with the upper flange of its adjacent link an angle of 5 degrees directed either upwardly or downwardly. This permits the chain of supporting links to be in close contact along its length with an uneven roof.
Patent GB-1244714-A (GB)
Title: Thermal cracking of liquid hydrocarbons
IPC: C10G9/36
Filed: 1970-02-18
Abstract: 1,244,714. Thermal cracking of heavy oils. KUREHA KAGAKU KOGYO K.K., and CHIYODA KAKO KENSETSU K.K. 18 Feb., 1970 [21 Feb., 1969], No. 7844/70. Heading C5E. Heavy hydrocarbon oil, e.g. crude oil, is cracked to produce ethylene and/or acetylene by pre-heating to 200-500‹ C. and then spraying the oil into a reaction chamber maintained at a temperature above 800‹ C. and a pressure from normal to 10 kg/sq. cm. gauge, the spraying being through one or more nozzles at a pressure above 20 kg/sq. cm. so that at least 5 wt. per cent of the oil is flash-evaporated and the oil is finely atomized. Where the oil is such that a toohigh preheating temperature is required to flash-evaporate at least 5 wt. per cent thereof, an easily volatilizable hydrocarbon oil may be added thereto to achieve the same effect. In the example, a crude oil is cracked at 2000‹ C. in a hydrogen-oxygen flame after pre-heating to different temperatures and spraying.
Patent GB-589482-A (GB)
Title: Improvements in foldable baby carriages
IPC: B62B7/10
Filed: 1945-03-28
Abstract: 589,482. Collapsable vehicles. LAMMIMAN, A. F., and REUBEN, S. March 28, 1945, No. 7874. [Class 108 (i)] In a folding baby-carriage, the wheels are mounted on C-springs which are pivoted to permit the wheels to be swung to lie under the seat. The back rest and handle are in two hinged parts and arm rests are provided, the whole structure being maintained in extended form by break-hinge links. As shown, the seat frame comprises two tubular sides 1 connected at the front and rear by transverse strips and carrying brackets 3 to which transverse rods 4 are attached. The fabric 5, 5a is carried by the rods 4 and by a rod 13 forming a hinge between parts 11, 12 of the handle, which parts are locked in operative position by spring-pressed pins 14 engaging holes in the part 11. The arm rests 15 are pivoted to the front brackets 3 and to the handle parts 11, links 16 maintaining them and the handle in operative position. The wheels 8 are journalled on stub axles secured to C-springs 6 associated one with each tube 1. The springs have a rod, or rods, secured, e.g., by welding, to the ends of the springs, the rods extending into or through the tubes 1. A hinge is thus provided which permits the springs, and wheels thereon, to be swung inwardly and upwardly against the underside of the seat, or to be retained in the vertical operative position by links 9. A spring clip grips the.links 9 in the folded position and holds them. In the collapsed position, the pins 14 engage under lugs 20 on the part 11 to prevent the structure from being accidentally opened when the carriage is picked up by the handle. A foot rest 17 is provided, which, in the collapsed position, is swung over to lie on the seat.
Patent GB-1103206-A (GB)
Title: Process for the purification of residual gypsum arising in the manufacture of phosphoric acid by sulphuric reaction of natural phosphates
IPC: C04B11/26
Filed: 1965-02-24
Abstract: Residual gypsum, a by-product in the manufacture of phosphoric acid by the wet method, i.e. by the reaction of natural phosphates with sulphuric acid or other acids in the presence of the sulphate ion, is purified by forming a slurry of the gypsum and a mineral acid other than phosphoric acid, feeding the slurry continuously into a reactor, agitating therein at 50 150 DEG  C. while the acid concentration is 0.5-60% by wt., and continuously withdrawing the slurry containing recrystallized calcium sulphate as anhydrite or hemihydrate, the treatment taking place in the presence of anhydrite or hemihydrate crystals already formed and permanently present so as to accelerate the reaction and to direct it towards the formation of very coarse cystals.  The previously produced crystals may be continuously or periodically introduced into the reactor in an amount of 0.5-5% by wt. of the gypsum introduced during the same period of time. Crystals formed may be separated from the withdrawn slurry, part or all of the remaining acid being used to prepare the slurry with gypsum and at least part of the remaining liquid may be reintroduced into the cycle for the preparation of phosphoric acid. Gypsum may be obtained by rehydration of the crystals withdrawn.
Patent GB-1304623-A (GB)
Inventor: DRABER W
IPC: C07D233/56
Filed: 1970-02-19
Abstract: 1304623 Substituted benzylimidazoles BAYER AG 19 Feb 1970 [22 Feb 1969] 8030/70 Heading C2C The invention comprises compounds of formula and their salts, wherein R 1 , R 2 , R 3  are each H or alkyl or alkenyl (up to C 4 ), X is H, alkyl. alkoxy or alkylmercapto, or an electronegative or basic substituent, n is 0, 1 or 2, A is (possibly substituted) phenyl, pyridyl, alkyl, alkenyl or cycloalkyl, and B is an aliphatic, cycloaliphatic or aromatic radical, provided that A is not phenyl, substituted phenyl or pyridyl when B is phenyl or substituted phenyl. These compounds are prepared by reacting with imidazole in an organic solvent at 20-150 C., an appropriate precursor having Cl or Br instead of the imidazolyl group in the above formula. Therapeutic compositions for oral, parenteral, rectal or topical administration comprise compounds of the above formula, which are antimycotic, and also have activity against pathogenic protozoa and bacteria.
Patent GB-911494-A (GB)
Title: Switching follow-up positioning system
IPC: G05D3/12
Filed: 1959-03-09
Abstract: 911,494. Electric selective signalling systems. BENDIX CORPORATION. March 9, 1959 [March 19, 1958], No. 8141/59. Class 40 (1). A conventional remote control system using either ordinary gap switches having a single gap, Fig. 1, or coded gap switches having a pattern of gaps (Figs. 3 and 4, not shown) is modified by the addition of a switch 27 at the controlling gap switch 10 and a further disc 28 on the follower gap switch 20 so that when the position of the follower gap switch agrees with that of the controlling gap switch a relay 31 can be controlled by the switch 27. In a modification, Fig. 5, it is arranged that the switch can transmit a signal from a device 53 with a characteristic (e.g. frequency) recognisable by a device 54 to control the relay 31. Specification 769,353 is referred to.
Patent GB-586873-A (GB)
Title: Improvements in and relating to the formation of continuous laminated biscuit dough or other webs
IPC: A21C3/02
Filed: 1944-05-01
Abstract: 586,873. Dough-lapping machines. BAKER, G. R., and BAKER PERKINS, Ltd. May 1, 1944, No. 8169. [Class 87 (ii)] A method of forming a laminated dough web comprises continuously feeding a dough supply web (towards a dough laying position) in a path of bight form adapted to provide a reserve length or "pool" of dough web, and adjusting the bight alternately (a) to liberate or give up, and (b) to accommodate or receive. dough laying lengths as the dough is laid on a receiving conveyer in (a) forward and (b) rearward laps respectively. Fig. 1 shows an arrangement in which an endless conveyer belt 11 is trained around rollers 14, 1, 2, 3, 4, 5, 12 and 13. The belt is driven through the roller 12, which is rotated at constant speed by a chain 43 from a sprocket 44. Dough web fed on to the belt at a point near the roller 14 travels to the right, passes over roller 1, travels to the left on a short conveyer 15 which runs on rollers 6, 7, and then travels to the right on conveyer 11. The rearwardly-directed web bight extending between rollers 1, 2 and 3 serves as a "pool." The rollers 2, 3, and the conveyer 15, are supported on a reciprocating dough-laying carriage A, and the rollers 1, 4, are supported on a reciprocating compensating carriage B. Carriage B is reciprocated by cam and link means 38, 41, 36, 35, at half the speed of the conveyer 11, and carriage A, which is mounted on carriage B, is moved at twice the speed of carriage B by means of a rack and pinion arrangement 31, 30. 18. Roller 5 is stationary. The operation is shown in Fig. 4. As the two carriages move from position a to position c, the "pool" bight is shortened and dough web (advancing at twice the speed of carriage A) flows over the doughlaying roller 3 and is deposited on a transverselymoving conveyer 10. As the carriages move from position c to position e, the pool bight is lengthened, dough on the laying bight is brought to rest, and dough web is laid on the previouslylaid web. In modifications:-(a) Roller 4 may be mounted upon an independent sliding carriage controlled by a spring or counterpoise. (b) Roller 4 may be fixed and roller 5 mounted on a sliding carriage to act as a compensator; (c) (Fig. 2, not shown) Roller 1 is fixed, rollers 2, 6, 7 are mounted upon one (half-speed) carriage, roller 3 is mounted upon another (fullspeed) carriage, roller 4 is mounted upon the half-speed carriage and roller 5 is mounted in a fixed position : or one of the rollers 4, 5 may be fixed and the other controlled by a spring or weight. A roller 45 mounted in a frame 46 is moved by the dough web in such a way as to ensure that the dough web is laid evenly. Fat or flour or both may be applied to the web in transit to the laying station.
Patent GB-857462-A (GB)
Title: Improvements relating to rotary wing aircraft
IPC: B64C27/54
Filed: 1956-05-31
Abstract: 857,462. Rotary wing aircraft rotors. LOVE, J., and KAY, D. Aug. 30, 1957 [May 31, 1956 (2)] Nos. 8211/56 and 8212/56. Class 4. A rotary wing aircraft rotor comprises a plurality of blades each articulated to a hub 1 through a pair of links 7, 8 the longitudinal axes of which lie in a plane parallel to the hub axis, the links being attached at their inboard ends to the hub for pivoting about parallel axes 9, 10 offset from and lying in planes perpendicular to the hub axis, and being attached at their outboard ends to the blade rest fitting 2 for swinging about parallel axes 5, 6 on opposite sides of and lying in planes perpendicular to the spanwise axis of the blade, the links converging towards the hub, the arrangement being such that the blade flaps about a virtual axis closer to the hub axis than the axes 9, 10. Pitch control independent of flapping movement is applied by mounting the blade root 16 for pitch change movement in bearings 17, 18 in the fitting 2. A chordwise lever (not shown) extending from the root 16 is pivoted to a link 15 pivoted to an intermediate point of a beam 12. One end of beam 12 is pivoted to a link 13 also pivoted to a lug 14 on fitting 2, and the other end of beam 12 is pivoted to a rod 11 about an axis located at the same distance from the hub axis as the virtual flapping axis. In a mean pitch setting, beam 12 and root 16, and link 13 and link 15, are parallel. Axial movement of rod 11 raises ar lowers link 15, altering the pitch of the blade. Flapping movement has substantially no effect on blade pitch. For collective pitch control only, a single rod 11 is pivoted to the beam of each blade. For cyclic pitch, each beam 12 has its own rod 11, or a single rod 11 is provided with a tiltable head. Drag hinges may be incorporated in hinges 9, 10. The hub may be fixed or tilting.
Patent GB-566184-A (GB)
Title: A superheater for use in connection with steam boilers
IPC: F22G7/14
Filed: 1943-05-24
Abstract: 566,184. Steam superheaters. YARROW, SIR H. E. May 24, 1943, No. 8220. [Class 123 (iii)] A super heater unit comprises an outer tube a, through which steam is passed from a header f and an inner tube b connected to the boiler water space through a manually or thermostatically controlled valve c. The outside of tube a is in contact with the furnace gas, and the temperature of the steam is regulated by the amount of boiler water passing through the tube b or by the height of water in it. If the valve c is closed, the steam is not desuperheated. Heat is conducted to the tube b by fins k with or with. out an intermediate tube l. Expansion rings m may be provided or tube a or b. The superheater may be subject to the furnace radiation, or may be placed behind a bank of water tubes where it is subject to the hot gases.
Patent GB-1500845-A (GB)
Title: Fail safe logic monitor
IPC: G06F7/02
Filed: 1976-03-02
Abstract: 1500845 Monitoring data words BENDIX CORP 2 March 1976 [17 March 1975] 08337/76 Heading G4H In a fail-safe system for monitoring a multibit logic word, the word and a reference word are passed by respective multiplexing means 34, 36 and 68<SP>1</SP>, 70 via respective gating means 74 and 78 to a comparator 82 which provides an alternating output on substantial agreement and a constant level output otherwise, the alternating output driving respective address means 96, 106 and 100, 108 for the two multiplexing means. Inequality at the comparator thus stops the system. The alternating signal is derived from a clock pulse train added to one input of the comparator 82 (at 86). Each address means includes a frequency-dividing flip-flop 96, 100 and a binary counter 106, 108, a voltage-limiting Zener diode 102, 104 being provided. The system is fail-safe since internal failure will cause the counters to become de-synchronized, producing inequality at the comparator, which will stop the system. The multiplexing means 68<SP>1</SP>, 70 can be pre-tested by providing a low level at test terminal 135, blocking the output from multiplexing means 34, 36 and enabling flip-flop constituted by gates 120, 122 and 128, 130 to be set if the outputs from 68<SP>1</SP> and 70 change state. This setting is necessary for subsequent indication of fault in the logic word. The logic word may relate to landing of an aircraft in an automatic flight control system.
Patent GB-434540-A (GB)
Title: Improvements in the manufacture of alkali cellulose
IPC: C08B1/08
Filed: 1934-03-16
Abstract: Alkali cellulose is prepared by treating moist cellulose pulp, containing more than 25 and less than 75 per cent of cellulose, in a kneading machine, sulphiding drum, or shredder, with just the required amount of alkali lye, which is introduced in the form of a fine spray.  In an example, 155 parts of moist cellulose pulp (containing 100 parts of dry cellulose) are shredded and sprayed with 100 parts of caustic soda lye (containing 55 parts of caustic soda) at 10 DEG  C.  The alkali cellulose is then sulphided, immediately, or after ripening.  In another example, 220 parts of moist pulp (containing 100 parts of dry cellulose) are sprayed with 32 parts of a 25 per cent solution of sodium sulphide, and then sprayed with 75 parts of 48 per cent caustic soda solution. The mass is sulphided without ripening and dissolved to form a viscose.  Specification 434,547 is referred to.
Patent GB-177532-A (GB)
Title: Improvements in hand-driven starters for starting internal combustion engines from adistance
IPC: F02N3/02
Filed: 1922-03-22
Abstract: 177,532. Ravenel, E. March 22, 1921, [Convention date]. Spray carburettors. - The Specification, as open to inspection under Sect. 91 (3) (a), comprises means for flooding the carburettor at starting, consisting of a spring knob 16 connected to a cable passing through a tube 17 and terminating in a ball 19 acting upon the float 20. This subject-matter does not appear in the Specification as accepted.
Patent GB-520813-A (GB)
Title: Improvements in or relating to the preservation of rubber and the like
IPC: C08K5/18
Filed: 1939-03-16
Abstract: 520,813. Preserving rubber. UNITED STATES RUBBER CO. March 16, 1939, No. 8408. Convention date, March 17, 1938. [Class 70] An anti-oxidant for rubber, gutta percha, balata, polychloroprene &c. consists of a compound of the formulawhere R is an arylene group, R 1 , R 2  are aryl groups and A is a methyl radical. Examples are the N-methyl derivatives of N, N'-diphenylo or p-phenylene diamine, N, N<SP>1</SP>-di-p-anisylp-phenylene diamine, N, N<SP>1</SP>-di-#-naphthyl-pphenylene diamine, N, N<SP>1</SP>-di-o-tolyl-p-phenylene diamine, N, N<SP>1</SP>-diphenyl-2.5 toluylene diamine N, N<SP>1</SP>, diphenyl-1.4-diamino-naphthalene, N, N<SP>1</SP>, di-p-cyclohexyl-phenyl-p-phenylene diamine.
Patent GB-242154-A (GB)
Title: Improvements in demountable rim construction
IPC: B60B23/10
Filed: 1924-08-08
Abstract: 242,154. Wagenhorst, J. H. Aug. 8, 1924. Tyre attachments to rims.- A bridge-plate 118 secured to one end of a split tyre-carrying rim A and adapted to engage a stud &c. 121 on the other end of the rim, is formed with an apertured lug 123 to receive one of the bolts C by which the rim is detachably secured to the wheel. Specification 241,328 is referred to.
Patent GB-217983-A (GB)
Title: Improvements in or relating to heating apparatus of the class organised for softening parts of or for boot or shoe uppers
IPC: A43D95/12
Filed: 1923-03-26
Abstract: 217,983. British United Shoe Machinery Co., Ltd., and Ricks, F. March 26, 1923. Softening.-In a heater for softening thermoplastic shoe stiffeners, the work-support comprises closely spaced surfaces having small contact area with the stiffener and of material of low thermal conductivity. The work-supporting bars 7 may be knife-edged and of sheet asbestos, and may be a finger-breadth apart to allow the operator readily to remove a treated stiffener. The top of the treating chamber is roofed by a surface 12 heated by products of combustion from a burner 13, these products also passing under the floor of the chamber, between partitions 16, and along one side 11. In a modification, additional burners are provided under water vessels, for use when moist heat is required. A group of passages of honeycomb formation and a layer of wire gauze are provided under the asbestos grid work support. Specifications 197,351, 210,161, and 210,849. [all in Class 17 (ii). Boots and shoes, Construction of], are referred to.
Patent GB-1215927-A (GB)
Title: Improvements relating to alluvial prospecting units
Inventor: RICHARDSON HENRY JOHN
IPC: E21B21/12
Filed: 1967-02-22
Abstract: 1,215,927. Drilling. ALLUVIAL MINING & SHAFTSINKING CO. Ltd. 22 Feb., 1968 [22 Feb., 1967], No. 8549/67. Heading E1F. An alluvial prospecting unit comprises an outer casing 1 having a cutting shoe 3 at its lower end, means-for example an air-actuated hammer 4-for driving the casing into an underwater layer, and a production pipe 10 suspended from a vessel, slidably mounted in the casing so that vertical movement of the vessel does not affect the casing, and having its lower end open to receive the spoil lying within the outer casing. The upper part 13 of the pipe 10 extends out of a slot in the casing and is oonneoted to hose 31 leading to a vessel. High pressure water may be supplied to shoe 3 through nozzles 8 from the annular space between inner and outer walls of the casing. Disintegrator bits and a ring to prevent oversize particles entering the pipe may be provided at the bottom thereof. The spoil may be lifted through pipe 10 by means of high pressure water or air supplied through an annular passage in the pipe. An inclinometer 25 is provided.
Patent GB-815514-A (GB)
Title: Improvements in and relating to alumina
IPC: C01F7/428
Filed: 1956-03-20
Abstract: Alumina of high average pore size (i.e. above 50  ) is prepared by treating an aluminium amalgam with an aqueous medium, preferably water, above 80 DEG  C., and calcining the alumina hydrate so formed at above 550 DEG  C., but below the temperature at which a -alumina is formed, preferably between 550 DEG  and 900 DEG  C.  The calcination is preferably carried out for 2 to 40 hours.  The hydrate is preferably dried before calcination.  In an example, small pieces of high purity aluminium were immersed in 0.1 N hydrochloric acid for three hours, and then mercury equal in weight to the aluminium was added and the mixture allowed to stand for one hour with occasional shaking, after which the hydrochloric acid and excess mercury were decanted from the amalgam, which was rinsed with distilled water, and then reacted with disdistilled water at 95 DEG  C. for 16 hours.  The hydrate is decanted off as a slurry, filtered, dried at 80 DEG  C., and calcined.  Depending on calcination conditions, products ranging from specific surface area of 287 m.2/g. with an average pore diameter of 78   to 121 m.2/g. with an average pore diameter of 126 ., may be obtained.  Specifications 815,512 and 815,513 are referred to.
Patent GB-311398-A (GB)
Title: Improvements in pneumatic percussive tools for driving spikes and the like
IPC: B25C1/00
Filed: 1929-03-18
Abstract: 311,398. Ingersoll-Rand Co., (Assignees of Rudlin, F. W.). May 11, 1928, [Convention date]. Percussive drills.- For driving spike nails by a percussive tool a tool head P having a recess T in its end free, is attached to the end of the shank J of the anvil block.
Patent GB-142629-A (GB)
Title: Improvements in or relating to cutting or boring tools or boring heads
IPC: B23B29/034
Filed: 1919-04-07
Abstract: 142,629. Francis, H. April 7, 1919. Boring-bars; cutter-bars.-A boring-head or tool with adjustable cutters has the cutters mounted in blocks B in slots in the head and adjusted by means of a scroll-plate D engaging threads on the blocks, the cutters being locked in the adjusted position by a nut E. The scroll has a V-shaped thread and is rotated by a screw in it engaging threads on the body C. The body may be solid and provided with a shank, or may be hollow for use on a boring-bar.