baber/WOPTO huggingface dataset:
Patent GB-804270-A (GB)
Title: Chemically expanded rivets and a process for their manufacture
IPC: B21K1/58
Filed: 1957-05-06
Abstract: 804,270. Making rivets; jointing by stamping. DU PONT DE NEMOURS & CO., E.I. May 6, 1957 [May 7, 1956: July 31, 1956], No. 14299/57. Classes 83 (2) and 83 (4). [Also in Group XXV] An explosive rivet comprises a head 1, Fig. 1a, and a shank 2, the shank having a recess 5 containing an explosive charge 5a, a spacer 6 and a spherical metal plug 7, the free end of the shank being swaged to hold the spacer and plug in position. The rivet is made by clamping the head 1 to a part 10, Fig. 2a, with the shank extending vertically upwards. The charge, spacer and plug are placed successively in the recess and the free end of the shank is chamfered by a die 12. Thereafter the rivet is conveyed to swaging dies 13, 14, Fig. 2b, to secure the charge &c. in the recess. Specification 711,417, [Group XXV], is referred to.
Patent GB-167336-A (GB)
Title: Improvements in and relating to tires
IPC: B60B9/22
Filed: 1920-05-25
Abstract: 167,336. Master, S. D. May 25, 1920. Tread bands.-A, tread band is formed of separate segments 8, fiexibly connected as shown in Fig. 2, and is held to the pneumatic tyre cover 1 by flanges 4 upon each segment, Fig. 1. In order to maintain the alignment of the segments, a metal band 6 is provided which may be corrugated transversely throughout its length, or only at the parts adjacent to the joints between the segments as shown at 7, Fig. 2. The rounded parts 9 of the segments 8 may be upset at their ends which extend beyond the edges of the segments as shown at 11<a>, Fig. 6 in which case the continuous metal band 6 is not necessary.
Patent GB-660796-A (GB)
Title: Improvements in and relating to numeral wheels for counters
IPC: G06M1/24
Filed: 1948-05-27
Abstract: 660,796. Counting apparatus. SMITH METERS, Ltd., and ANGOLD, H. E. April 5, 1949 [May 27, 1948], No. 14386/48. Class 106 (i). A numeral drum for a consumption meter indicator, or other counter, comprises a cupshaped body 1 with a fitting 7 at its open end bearing an isolated pair of teeth 10 for driving a transfer pinion, the body rim having an aperture at 6 in register with the tooth space in the fitting 7. The fitting 7 may be a diametral bar, or of spider formation, but is shown as a disc with a conical boss 12 to space the adjacent drum. It has the teeth 10 formed in the end of an offset tongue 8 and is secured to the base 5 of the body by distance rivets 15 which also secure the driving wheel 4 to the base. The centre part 3 of the base is off-set to give clearance to the toothed periphery of the driving wheel. The parts may be pressings in aluminium or alloy, or made by die-casting or moulding.
Patent GB-278312-A (GB)
Title: Improvements in radial cylinder explosion or internal combustion engines
IPC: F02B75/18
Filed: 1927-05-30
Abstract: 278,312. Sklenßr, I., and Keller, J. R. Oct. 4, 1926, [Convention date]. Four - stroke - cycle engines; pumps, centrifugal.-In a radial, revolving cylinder engine inlet and exhaust is controlled by an annular ported plate 3 surrounding the cylinder heads. the joints between this plate and the heads being made by rings 17; the contacting surfaces between the plate and rings are spherical enabling the rings to adjust their position in two directions. The plate is attached by spokes 4 to a casing 5 enclosing gearing 8, 9, 10, 11 and 12, by means of which the plate is driven at a different rate to the speed of rotation of the cylinder block. The rings 17 are held against the plate by centrifugal force and may be by the pressure within the cylinder; in the latter case the ring is placed within the. opening 15 in the cylinder head 16. The space between the cylinder heads is filled by pieces 21, which embrace the heads by means of rings 22 formed on the pieces. These pieces also have spherical contacting surfaces to bear on to the plate 3, and are held up to the plate by centrifugal force and by 'the action of adjustable weights 28 on the ends of arms 27 connected bv links 26 to the pieces; the arms 27 are supported in rods 24 fast on the engine casing. To cool the ported plate, that part not occupied by ports is formed with ribs in the shape of scoops to direct air over the plate during the movement of the cylinders through the atmosphere. To assist in the withdrawal of the exhaust a plate 36 is fixed over the exhaust ports on the slide valve, vanes 38 being formed on the plate, between which vanes the exhaust passes and exerts rotational force on the plate. The Specification as open to inspection under Sect. 91 (3) (a) also describes the use of adjustable springs for holding up the rings 17 and a modified form of packing, wherein rings 17, 17a, Fig. 4a (Cancelled) are used inside and outside the cylinder head 16; the inner one has inclined ribs 17b which by the alternating flow of gases causes rotational movement of the ring and reduces wear. The outer ring 17<a> is held up by an adjustable plate spring 19<a> attached to a piece 21. Mixture is supplied from the hollow crank shaft to the crank case, whence it is drawn through pipes 30 on the suction stroke into the cylinder through the inlet port 7. The valve construction may be applied to stationary cylinders. This subject-matter does not appear in the Specification as accepted.
Patent GB-626561-A (GB)
Title: Improvements in or relating to the recovery of acetylene from gaseous mixtures
IPC: C07C7/148
Filed: 1947-06-03
Abstract: Carbon dioxide contaminant in acetylene is removed by contacting the gaseous mixture with a concentrated aqueous solution of an alkali metal or ammonium carbonate at a temperature below the decomposition temperature of the aqueous solution of the corresponding bicarbonate, the acetylene being relatively insoluble in the concentrated solution.  The bicarbonate solution formed is withdrawn and heated to remove the carbon dioxide and the solution recycled.  Preferably the concentration of the carbonate solution is as high as can be attained without deposition of the bicarbonate from the solution during gas absorption, e.g. 60-80 per cent by weight in the case of potassium carbonate.ALSO:Acetylene is freed from carbon dioxide contaminant by contacting the gaseous mixture with a concentrated alkali metal or ammonium carbonate at a temperature below the decomposition temperature of the aqueous solution of the corresponding bicarbonate, the acetylene being relatively insoluble in the concentrated solution.  The bicarbonate solution formed is withdrawn, heated to remove the carbon dioxide and the solution recycled.  Preferably the concentration of the carbonate solution is as high as can be attained without deposition of the bicarbonate from the solution during gas absorption, e.g. 60-80 per cent by weight in the case of potassium carbonate.
Patent GB-1377275-A (GB)
Title: N-o-cyanophenyl-n,n,- disubstituted formamidines and their salts
IPC: C07C/
Filed: 1972-03-29
Abstract: 1377275 N - o - cyanophenyl - N<SP>1</SP>,N<SP>1</SP> - disubstituted formamidines BADISCHE ANILIN- & SODA-FABRIK AG 29 March 1972 [31 March 1971] 14703/72 Heading C2C N - o - Cyanophenyl - N<SP>1</SP>,N<SP>1</SP> - disubstituted formamidines of the formula or a salt thereof of formula in which R<SP>1</SP> and R<SP>2</SP> are identical or different alkyl groups, one of the groups may also be phenyl, or R<SP>1</SP> and R<SP>2</SP> together with the nitrogen are a heterocyclic saturated ring, R<SP>3</SP> and R<SP>4</SP> are each H, Hal, alkyl, alkoxy, CN or NO 2  and X is an acid radical capable of forming an anion, is produced when an anthranilamide of formula in which R<SP>3</SP> and R<SP>4</SP> have the meanings given above, is reacted with an N,N-disubstituted formamide chloride of formula in which R<SP>1</SP> and R<SP>2</SP> have the meanings given above or with a reaction product of an N,N- disubstituted formamide of formula in which R<SP>1</SP> and R<SP>2</SP> have the above meanings with an acid chloride. The process is preferably carried out in an inert organic solvent at a temperature range of from about 15‹ to 100‹ C.
Patent GB-753772-A (GB)
Title: Improvements in rotary compressors
IPC: F04C18/16
Filed: 1954-05-19
Abstract: 753,772. Rotary pumps. SOC. ANON. A. SAURER. May 19, 1954 [Sept. 21, 1953], No. 14721/54. Class 110(2) A pump of the meshing screw type has each helical thread of the male rotor 2a formed of three main arcs, a leading convex flank I the part Ia of which is an arc of a circle, a trailing flank II which is less convex than the flank I and a middle arc III the purpose of which is to give a better sealing and the length of which is 0.7 to 1 times the length of the arc IV of a thread of the female rotor 3a. Each arc III may have inserted strips 18 of abradable synthetic material (e.g. artificial resin, Neopren) or soft metal running longitudinally along the thread or may have grooves 20 similarly situated which are preferably discontinuous as in Fig. 8 to prevent leakage along them. Each arc III may be covered with a layer of soft metal and the surface of this layer is preferably pitted as at 23 in Fig. 6 to reduce friction between a thread and the casing if they touch. The arcs IV of the female rotor 3a may be similarly treated and the edges 17 may be rounded. The rotors being geared together run with small clearances and in spaced relation and may have equal or unequal numbers of threads. The inlet and outlet ports are trapezium shaped.
Patent GB-929125-A (GB)
Title: Improvements in scaffold fittings
Inventor: EVESON JOSHUA WILLIAM CHARLES
IPC: E04G7/18
Filed: 1961-04-25
Abstract: 929,125. Clamp fastenings. ROBERT RIGBY Ltd. March 22, 1962 [April 25, 1961], No. 14828/61. Class 44. A scaffold fitting comprises a body 12 which is adapted to embrace a scaffold tube to clamp the latter to an article such as another tube, the clamping being effected by a threaded member which is screw engaged with a nut 10 which is retained in the body by a circlip 11. The nut has a hexagonal portion 14 and a cylindrical spigot portion 15, the spigot portion projecting through an aperture. The spigot portion has a peripheral groove in which the circlip 11 is located, the circlip seating on the outer surface of the body. The nut is prevented from rotation by local crimpings 16 of the body which cause the body to engage opposite faces of the hexagonal portion 14.
Patent GB-403940-A (GB)
Title: Improvements in or relating to radio telephone systems
IPC: H04K1/04
Filed: 1932-05-25
Abstract: 403,940. Transmission systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, WILSON, W. P., 42, Vicarage Road, and MURPHY, F. M. G., Orchard Lodge, London Road, both in Chelmsford. May 25, 1932, No. 14878. Drawing to Specification. [Class 40 (iv).] In a radiotelephony transmitter in which speech currents modulate a supersonic oscillation of the order of 13.000 and after demodulation are applied to the transmitting modulator with frequency bands inverted and/or trans. posed, a gain-control device is inserted after modulation and before demodulation for the purpose of limiting the amplitude of the speech band. This device may be of the kind described in Specifications 5373/15, 157,209, 172,376, [all in Class 40 (v), Wireless signalling &c.], or 346,666, [Group XL], or of other known type. Undesired modulation products are cut out by means of filters. The system has the advantage that those modulation products which are harmonics of the lower frequencies in the passed band are cut out, whereas if filtering were not effected till after demodulation they would be within the passed band.
Patent GB-694440-A (GB)
Title: Improvements in and relating to 2-thienyl-substituted silanes
IPC: C07F7/18
Filed: 1950-06-15
Abstract: Thienyl substituted silanes of the general formula: <FORM:0694440/IV (b)/1> wherein Z represents an alkoxy radical and n is 1, 2 or 3, are prepared by reacting a 2-thienyl Grignard reagent with a tetra-alkoxy silane of the general formula Si(OR)4, where R represents a monovalent saturated aliphatic radical.  The Grignard reagent may be 2-thienyl magnesium bromide and the tetraalkoxy silane may be tetra-ethyl orthosilicate.  The group R may be a methyl, propyl, butyl, isobutyl, hexyl, 2-ethyl-hexyl, decyl or octadecyl radical. In the example, 2-thienyltriethoxysilane and di-(2-thienyl)-diethoxysilane are prepared; tri-(2-thienyl)-ethoxysilane is also probably formed.
Patent GB-630198-A (GB)
Title: Improvements in or relating to centrifugal moulding machines
IPC: B22D13/04
Filed: 1946-05-17
Abstract: 630,198. Centrifugal casting - machines ; clamping moulds; extracting castings. CHAZE, P. May 17, 1946, No. 15002. Convention date, May 25, 1945. [Class 83 (i)] A centrifugal casting-machine comprises a rotary plate 3 adapted to receive interchangeable moulds 10, 11 and is provided with centring and securing means. The mould part 11 may be fixed by screws 13 to the plate 3, which may be rotated by belt gearing 4 and stopped by a brake 5. The mould part 10 may be aligned to 11 by formations 12 and be secured by screws 24 to a cover 22 and funnel 23. Rotatably mounted on the mould part 11 is a ring 27 having external gear-teeth 28 and internal spaced lugs 26, Fig. 2, adapted to engage over external lugs 25 of the cover 22 and thus clamp the mould parts together. Assuming that a pour has been made and the cast articles 15 have solidified, a rack 35 is hydraulically operated to rotate gearing 36, shaft 30, and a mutilated gear 29, which engages the teeth 28 and rotates the ring 27 relatively to the mould to bring the lugs 26 into the spaces between the lugs 25. At the same time an arm 31 on the shaft 30 engages the funnel 23 as shown in broken lines in Fig. 1. A hydraulic jack 37 is then operated to raise the shaft 30 and thus the mould part 10 and the rack 35 is again moved to swing the part 10 clear of the part 11. Hydraulic jacks 17 are also operated to lift a plate 16 to energize pins 14a, Fig. 3, which lift the mould part 10, and then pins 14, 14b, &c., which eject the cast articles 15 and the gates &c. 15a. If cores 19, Fig. 4, are required, these are extracted by a plate 18 engaged by an annular screw 20 which is rotated by a pinspanner 21 rotated in turn by a loose pinspanner, not shown, engaged in holes 21b. After the castings have been removed the parts of the machine are returned to their original position ready for pouring. All the hydraulic gear is operated in correct sequence under the control of a distributer valve 39. In a modification inertia is used to clamp and unclamp the mould parts. The lugs 43, Fig. 5, of the cap 22, pass between rollers 44 on an upturned rim 45 of the plate 3 when the parts are assembled and when the plate 3 is rotated the rollers 44 engage steep inclines over which they pass onto the less inclined parts of the lugs 43 to clamp the parts 3, 11, 10, 22 together. As the speed increases weights 50 in radial guides 51 move outwardly, against the action of springs 52, thus engaging some of the detents 54 in teeth 55 to prevent undesired rotation of the cap 22 relative to the plate 3. When this is braked the detents release and the cap 22 overruns the plate, thus releasing the part 10 so that it can be lifted and, if desired, moved aside by a collar 48. In a modification the detents 54 are actuated by fluid pressure or electromagnetically.
Patent GB-229922-A (GB)
Title: Bearing
IPC: F16C35/06
Filed: 1924-06-23
Abstract: 229,922. Eikenroth, F. June 23, 1924. Brackets; vehicle-axle bearings.- A bearing comprises a bush a welded to the end of a sheet iron tube e, and having supporting flaps c fixed thereon by welding. The bush a has rollers b, or like bearing elements, and is closed by a ring d. The tube e has a lubricator f. If the bush a is in two parts, each part has flaps c connected to one another and to the part on which the bearing is mounted by bolts. The construction may be adapted as a wall bracket.
Patent GB-826066-A (GB)
Title: Albumin diagnostic composition
IPC: G01N33/68
Filed: 1957-05-13
Abstract: An indicator for determining albumin in liquids comprises a bibulous body such as paper impregnated with an indicator dye which exhibits protein error, and a solid acid-reacting material effective to buffer the body and the dye at a point adjacent to but on the acid side of the pH at which the colour-changes of the dye normally occurs.  The acid reacting material is usually a mixture of sodium citrate and citric acid but exemplified are a mixture of phthalic acid and fumaric acid, aluminium sulphate or sulphates and the following acids used singly or in combination: ascorbic, salicylic, sulphosalicylic, oxalic, itaconic, gluconic, sulphamic, succinic, benzoic, mandelic, glutaric, malic, tartaric, maleic, citric, phthalic, and sulphosalicylic, and sodium carbonate/bicarbonate and mixtures of sodium phosphates.  The dyes exemplified are tetrabromophenolphthalein ethyl ester, brom phenol blue, brom cresol green, dimethylaminoazobenzene and Congo Red.
Patent GB-809284-A (GB)
Title: Process for the production of titanium dioxide powders
IPC: C09C3/04
Filed: 1955-05-26
Abstract: Titanium dioxide is produced in the form of a free-flowing powder by making a suspension of titanium dioxide in a volatile liquid, and subjecting the suspension, broken up into fine droplets, to evaporation in a current of hot gas.  The average size of the dry globular aggregates of titanium dioxide so produced can be regulated by controlling the concentration of the suspension and the size of the droplets.  The product is suitable for use in paint mixers.  In an example, an aqueous suspension containing 50 per cent by weight of titanium dioxide was prepared, and the suspension was spray-dried in a current of air at 120 DEG  C. by means of a rose-nozzle having a radius of 10 cm. and provided with apertures of 1 mm. diameter.  The nozzle was rotated at 10,000 revolutions per minute in the current of air.  The substantially dry product was collected in a cyclone separator at 80 DEG  C.  It had a moisture content of about 0.2 per cent, and consisted of smooth globular aggregates of a size ranging from 0.02 to 0.05 mm. diameter.
Patent GB-1110614-A (GB)
Title: Improvements relating to containers incorporating a pouring device
Inventor: BENNETT ROGER WILSON
IPC: B65D47/26
Filed: 1966-04-06
Abstract: 1,110,614. Container closures. BETTIX Ltd., and CEREBOS FOODS Ltd. 4 April, 1967 [6 April, 1966], No. 15365/66. Heading B8T. The top 2 of a salt &c. tin has a hole 5 in which pivots a spigot (9), Fig. 5 (not shown), of a plastics closure 7 formed integrally with a hinged shoot 14, opening the closure by turning it anticlockwise through 90 degrees from the position shown in solid lines aligning a passage 12 extending radially from its underside with a pouring hole 4 in the top of the tin. In the closed position, the shoot 14 lies flat on the top 2 of the tin. In the opened position, shown in chain-dotted lines, the shoot 14 is cammed upwards by an upstanding rim flange 3 around the top 2 of the tin, the shoot hinging about a line of weakness 15. Rear faces 16 on the side walls of the shoot 14 then abut the face 13 of a ridge extending radially across the closure and containing the passage 12. A ridge 11 across the closure 7 is gripped to turn it. By rotating the closure 7 through 180 degrees from the closed position, sprinkling holes 17 are aligned with the pouring hole 4.
Patent GB-277269-A (GB)
Title: Improvements in or relating to coke pushing machines
IPC: C10B33/10
Filed: 1927-06-09
Abstract: 277,269. Imray, O. Y., (Naamlooze Vennootschap Silica en Ovenbouw Mij). June 9, 1927. Discharging.-In coke oven discharging apparatus, of the kind comprising a travelling machine a fitted with a pusher-bar b carrying a. ram-head c, there is slidably mounted on the bar b a shoe d which, as the bar bends downwardly during the pushing operation, grounds upon and thus prevents contact of the head c with the floor of the oven. The shoe d is supported by rollers e engaging rails f on the bar b and is provided with additional rollers g on which the bar slides after the rails f cease, owing to sagging of the bar, to engage with the roller e. In the modification shown in Fig. 2, the shoe d is locked to the head c by the engagement of one arm h<1> of a bell-crank h in an eye c<1>, the locking device being automatically released, when the shoe reaches the middle, of the oven or thereabouts, by a rod i which is secured to the other arm h<2> of the bell-crank and provided with a lug i<1> adapted to engage a stop on the machine a.
Patent GB-296967-A (GB)
Title: Improvements in and relating to railway crossings
IPC: E01B7/30
Filed: 1928-05-25
Abstract: 296,967. Jackson, L. Mellersh-, (Continuous Rail Crossing Corporation). May 25, 1928. Crossings with movable parts; operated in conjunction with point-indicating signals; locking- bolts; electrically operated and controlled by vehicle.-A railway-crossing intersection has a casing containing a grooved turntable which is locked in either extreme position. Each table 14, Fig. 1, has a lever 19 connected by links 22, 23 to operating rods 26 and also a segment of gear teeth in mesh with racks 32 connected to lock-rods 33 perforated to receive pins formed at the ends of rods 37, 38 coupled at 39 and actuated bv a control rod 43. The racks 32 are also coupled to signals 47. In a modification, Fig. 6, the racks actuate the signals while the control rod actuates pins 67 which enter one of two apertures 68 in each table. The tables may be operated and locked electrically, Fig. 9, by an approaching vehicle engaging contacts 131, 133, 136 on the trolly wire. Contact 131 energizes a coil 132 to withdraw a locking-pin 126 from the linkage 119. Contact 133 energizes 134 to actuate the tables while contact 136 energizes coil 137 to insert the pin 126 and lock the tables in their new position. On the cross track, contacts 141, 144 energize coils 132, 137 while contact 142 energizes coils 143 to move the tables oppositely to coils 134.
Patent GB-203380-A (GB)
Title: Improvements in electrical protection systems
IPC: G08B13/22
Filed: 1922-06-01
Abstract: 203,380. Williams, J. P. June 1., 1922. Drawings to Specification. Counters.-Counter grille work is protected against interference by being connected with the secondary of a spark coil generating a sufficiently high potential to give a shock. The secondary circuit is led to an insulated floor plate and the other wire grounded through the counter grille. The primary and interrupter are continuously in operation during a desired period of time and may at other times be brought into action by depressing a switch behind the counter, and such switch may operate a relay to bring the system into continuous action and to operate an alarm bell.
Patent GB-1077789-A (GB)
Title: Luggage cases and a method of manufacturing luggage cases
IPC: A45C5/02
Filed: 1965-04-12
Abstract: 1,077,789. Luggage case. ATLANTIC PRODUCTS CORPORATION. April 12, 1965 [Aug. 4, 1964], No. 15518/65. Heading A4G. [Also in Division B8] The edge of a carrying case is formed in the flat by a central elongated metal section 14, Fig. 2, to the edges of which are secured, e.g. in slots 27, 28, rigid or flexible panels 15, 16, the handle and feet parts being attached to the metal section and the assembly then being bent and the ends joined to form the rectangular support frame of the case. The side walls 90, Fig. 13, are secured to the frame by U-shaped welts 94 having a wire-reinforced bead 95 and sewing at 95, 96. The metal frame or a zipped flap in a side wall may open the case. A colour band 30 may be inserted in the metal strip.