baber/WOPTO huggingface dataset:
Patent GB-240371-A (GB)
Title: Manufacture of nucleal condensation products from ª‡-naphthol and cyanuric halides
Filed: 1925-03-20
Abstract: Condensation products are produced by condensing 1 or 2 molecular proportions of a -naphthol and 2 or 1 molecular proportions of any other aromatic compound which yields nuclear condensation products, in any order, with one molecular proportion of a cyanuric halide in the presence of a condensing agent.  They dissolve in alkalies but not in water and are valuable intermediate products for the manufacture of dyestuffs. The following compounds are obtained according to examples, the condensations being effected in every case in presence of aluminum chloride and either carbon bisulphide or tetrachlorethane.-(1) 2 : 4-di-p-oxynaphthyl-6-xylyl-1 : 3 : 5-triazine from 1 mol. cyanuric chloride, 2 mols. a -naphthol, and an excess of xylene; (2) 2 - p - oxynaphthyl-4 : 6-di-b -oxynaphthyl-1 : 3 : 5-triazine from 1 mol. cyanuric chloride, 1 mol. a -naphthol, and 2-mols. b -naphthol; (3) 2 : 4-di-p-oxynaphthyl-6-resorcyl-1 : 3 : 5-triazine from 1 mol. cyanuric chloride, 2 mols. a -naphthol, and resorcin; (4) 2 : 4-di-p-oxynaphthyl-6-b -oxynaphthyl-1 : 3 : 5-triazine and 1 mol. cyanuric chloride, 2-mols. a -naphthol, and b -naphthol; (5) 2 : 4-di-p-oxynaphthyl-6-b -methoxynaphthyl-1 : 3 : 5-triazine from 2 : 4-di-p-oxynaphthyl-6-chloro-1 : 3 : 5-triazine and b -naphtholmethylether; (6) 2 : 4-di-poxynaphthyl -6-p-cresyl- 1 : 3 : 5 -triazine from 2 : 4-di-p-oxynaphthyl-6-chloro-1 : 3 : 5-triazine and p-cresol; (7) 2 : 4-di-p-oxynaphthyl-6-anthraceno-1 : 3 : 5-triazine from the same chlorotriazine and anthracene.
Patent GB-138481-A (GB)
Title: Improvements in rotary engines, pumps and the like
IPC: F04C2/10
Filed: 1919-03-26
Abstract: 138,481. Robertson, J. March 26, 1919. Fixed-abutment type; packing drums &c.-In a rotary engine having outwardly sliding vanes j mounted in a rotor b revolving eccentrically within a casing a, sufficient oil is first admitted to fill the working spaces at their minimum capacity, the motive fluid being then admitted through a port .e to passages g, h in the rotor leading to the working spaces p. The radial outwardly-expanding passages h, according to the invention, are curved backwardly with respect to the direction of rotation. The motive fluid is subsequently discharged through the passages h, g and an outlet port f. The oil passes through holes o into vane recesses n, thereby reducing friction between the vanes and the casing. The vanes are provided with lugs k which are guided by the rotor projections l, m. The apparatus may be used as a pump or blower.
Patent GB-566152-A (GB)
Title: Improvements in respect of tiled and slated roof and wall construction
IPC: E04B7/20
Filed: 1943-05-15
Abstract: 566,152. Roofs. HAMILTON, D. ST. A. May 15, 1943, No. 7753. [Class 20 (iv)] A roof structure is composed of ladder-like units consisting of parallel members 1 with transverse tubular welded battens 2. Where the structure approaches a valley or hip, the end of the unit is angularly curtailed. The eaves of the roof may be formed of similar, but shorter, units arranged at a shallower angle. The side members 1 are bolted together directly, except at valley or hip, where intermediate plates 4, 5 are provided. Units on opposite sides of the roof are bolted together by gusset plates 7. The units are supported at their lower ends on the top of the wall by a crossmember which is embedded in a recess in the wall. Fig. 10 shows the junction of six units. On the valley side, the adjacent members 1 of the units D are bolted to the plate 4. On the hip side, adjacent members 1 of the units B are bolted to the plate 5, and the members 1 of units B and D are bolted to angle plates 15. The tiles 19, Fig. 13, are secured to the battens 2 by hooks 20 passing through the tiles and hooking under the battens. The construction may be applied to a wall.
Patent GB-292670-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H35/24
Filed: 1927-03-21
Abstract: 292,670. Norballe, H. J. March 21, 1927. Controllers, actuating. -A pressure gauge actuates a two-way switch 21 associated with a relay 31 for throwing in and out a motor-starter winding 34 with the object of maintaining substantially constant pressure in a reservoir. The relay has an actuating and holding-on winding which is closed when the switch 21 is on the low-pressure side 20, and is short-circuited when the switch moves to the high pressure side 19. The arrangement may be used for maintaining temperature, humidity, or other conditions.
Patent GB-839772-A (GB)
Title: Methods and apparatus for removing soap and detergent residues from laundered goods
Inventor: HUBEL CURT THEODOR
IPC: D06F41/00
Filed: 1957-03-08
Abstract: 839,772. Rinsing-machines. OGREN, L. March 8, 1957, No. 7829/57. Class 138 (2). Soap and detergent residues are removed from laundered goods inside a rotating centrifugal drum the goods being exposed to even watering from above substantially downwards and from the centre substantially horizontally, the quantity of water fed per unit of time corresponding approximately to the quantity of water discharged from the centrifuge per unit of time. In Fig. 1 a centrifuge 2 is provided with a central perforated pipe 11. A water supply pipe 17 extends within pipe 11 to, or nearly to, the bottom thereof. Water is supplied at such velocity that it escapes by holes 12 to water the laundered goods horizontally and some water is ejected from the top of pipe 11 on to the inner curved surface 18 of the lid which deflects it as an approximately vertical shower on to the goods. In a modification, Fig. 2, water is supplied through pipe 15 to a sprinkler plate 19, some of this water escaping through tube 21 into the perforated pipe 11 from which it is sprayed horizontally. Alternatively water may be supplied from below through the hollow driving shaft of the centrifuge. In a further modification (Fig. 3, not shown) water may be poured through a ftumel-shaped water intake in the lid.
Patent GB-398543-A (GB)
Title: An improved device for cleaning out the passages in the water gauge fittings of steam generators
IPC: F22B37/78
Filed: 1932-03-17
Abstract: 398,543. Gauge glasses. BATES, G. L. The Grange, Main Road, Wilford, Notting- hamshire. March 17, 1932, No. 7905. [Class 123 (i).] A means for cleaning out passages in gaugeglass fittings comprises a screw plug A carrying a steel drill B fitted with a handle C. When in use, the plug A replaces an end plug, and the drill may be pushed in and rotated to clear the spigot H of a stopcock G. Reference has been directed by the Comptroller to Specifications 29091/96, 16008/97, 19191/00, and 13204/07, [all in Class 123, Steam generators].
Patent GB-404495-A (GB)
Title: Improvements in and relating to soot separators
IPC: B01D45/16
Filed: 1933-03-15
Abstract: 404,495. Centrifugal gas cleaners. KAESLING, L., 27, Speyerstrasse, Berlin. March 15, 1933, No. 7914. Convention date, March 15, 1932. [Class 23.] A soot separator for chimneys comprises a substantially closed casing 1 housing a vertical tube 3 bent into a corrugated shape and having in the outer wall at the crests of the corrugations slots 4, 41, 4<11> through which the soot passes due to centrifugal force. Viewed in the direction of flow of the gases, the upper edges of the slots are bent inwards and the lower edges outwards. The upper end of the tube 3 is provided with a fan 6 mounted on a partition 5 across the casing 1 and rotated either by the ascending gases or by separate driving means. The lower end of the casing forms a collecting chamber for the soot.
Patent GB-1535136-A (GB)
Title: Feeding device for feeding semi-finished metal sheet pieces between two presses
IPC: B21D43/12
Filed: 1977-02-25
Abstract: 1535136 Shearing P MIRAMONDI 25 Feb 1977 [11 March 1976] 08029/77 Heading B3W Pieces of sheet metal are fed on slideways 1 between presses 2 by a carriage 11 movable along a guide bar 9, the carriage having at its ends vertically movable arms 16, 16<SP>1</SP> supporting cross-beams 17, 17<SP>1</SP> the ends 19 of which engage the sheet to be fed. The carriage is driven by a chain 12 and a motor 14 controlled by microswitches 15 along the feed path of the sheet. Upon a return movement of the carriage the leading ends 19 ride up over a sheet just advanced by the trailing ends and come to rest behind the sheet they then advance by a further step upon the next forward movement of the carriage. The sheet bears against a sheet already advanced and feeds it into the next press, the trailing ends 19 having received and advanced a succeeding sheet from the press 2. The feeder may slide out of the gap between the presses.
Patent GB-1526615-A (GB)
Title: Bag stacker
IPC: B65H33/02
Filed: 1977-02-25
Abstract: 1526615 Stacking sheets GLOUCESTER ENG CO Inc 25 Feb 1977 [2 March 1976] 08136/77 Heading B8R Plastic bags are counted as they form a stack, against a fence 52, Fig. 4, and supported on a platform 104 and stationary belt 12. When a desired count is reached, a combined clamp 101 and bag support 100, interdigitated with the fence 52, is pivoted downwardly so that succeeding bags are part-supported on the support 100, whilst the completed stack is clamped on the belt 12. Depending fingers 56 with protruding ends 58 are pivoted anticlockwise and the fence 52 raised, (Fig. 6, position), before the fingers are returned to act as a temporary bag support whilst the clamp/support 100, 101 is moved together with the belt 12 to remove the completed stack (Fig. 8). Finally the fence is lowered again.
Patent GB-1514447-A (GB)
Title: Security closures
IPC: B65D41/58
Filed: 1977-02-25
Abstract: 1514447 Tamper indicating closure LE BOUCHAGE MECANIQUE 25 Feb 1977 [16 March 1976 23 Sept 1976] 08168/77 Heading B8T A plug stopper A has a tearstrip 8 attached thereto, the free end 11 of the tearstrip extending through an opening 18 in an overcapsule B which has two lines of weakness 15, 16, aligned with the longitudinal edges of the tearstrip 8.
Patent GB-541021-A (GB)
Title: Improved method of and means for controlling the mixture strength in two-stroke cycle internal-combustion engines
IPC: F01L5/06
Filed: 1940-05-07
Abstract: 541,021. Two-stroke engines ; valves. ROWLEDGE, A. J., and WOOD, H. May 7, 1940, No. 8234. [Classes 7 (ii) and 7 (vi)] In a two-stroke engine operating with direct injection of liquid fuel, an excess of scavenging-air is admitted to the cylinder, and a portion thereof is expelled on the compression stroke through a port 23 in the sleeve valve, which sweeps across an exhaust port after this has been closed by the upper edge of the sleeve.
Patent GB-759400-A (GB)
Title: Gas line filter and automatic drain valve
Inventor: FAUST DELBERT GRANT
IPC: F16T1/20
Filed: 1954-03-22
Abstract: 759,400. Centrifugal separators. NORGREN CO., C. A. March 22, 1954, No. 8309/54. Class 23. [Also in Groups XIII and XXIX] Means for separating liquid from a compressed gas conduit comprises an inlet 13 leading to a filter 18 for removing solid matter, a plate 24 with vanes 26 for directing the gas downwardly in a circular path, a reservoir 34 for collecting liquid thrown against the wall by the motion of the gas, and an outlet 14 for the gas. A drain valve 57 is opened upon the accumulation of liquid in the reservoir by a fluid-pressure servomotor (see Group XXIX) comprising a diaphragm 61 subject to gas pressure under the control of a float-actuated pilot valve 49. Specification 725,700 is referred to.
Patent GB-1534055-A (GB)
Title: Dental handpiece
IPC: A61C1/14
Filed: 1976-03-02
Abstract: 1534055 Dental handpiece KALTENBACH & VOIGT 2 March 1976 [10 March 1975] 08381/76 Heading A5R [Also in Division B3] A dental handpiece has a drive shaft 7 rotated by a motor 15 and provided at its forward end with a tool retaining chuck 9 axially movable with respect to the shaft between a rearward position, to which it is biased by spring 21, to retain a tool, and a forward position to which it is moved by a piston and cylinder arrangement 24 to release a tool, the chuck and forward end of the shaft having co-operating frusto conical faces which cause tongues 13 of the chuck to move axially inwards to grip a tool. A chuck shaft 14 is located in shaft 8 and rotates therewith whilst being axially movable with respect thereto, the spring 21, formed of cup elements, acting on the chuck shaft via a ring 18 and pin 19. The inward end of the chuck shaft is contacted, via a pusher 22, by one of a series of pistons 23 arranged in respective chambers 33 of a cylinder housing 34. The pistons are aligned with the axis of the handpiece and connected by their smaller diameter hub parts 32 entering the larger diameter hub part 31 of the preceding piston. When it is required to release a tool from the chuck, pressure fluid enters the hand piece via conduit 51 and passes along path 49, 50, 57 and into the chambers 33 via bores 42, 42a in the piston hubs and apertures 43 extending from the hubs. Hence all the pistons are forced to the left and act on the chuck via its shaft 14. To allow the spring 21 to move the chuck inwards to grip a tool a shaft 48 in which the inlet aperture 49 is formed is rotated by sleeve 53 so that the path from conduit 51 is formed by 49, 50, 58, 47 to annular ducts 45 and apertures 44 to the opposite sides of the pistons. At the same time fluid in line 47 flows to the motor 15 to drive it if it is a fluid motor or cool it if it is an electric motor. The sleeve 53 rotates a block 4 in which shaft 48 is located by a pin 54 and is retained in a set position by a spring loaded ball 64. The block has passages therein to vent the opposite sides of the pistons to those subjected to the pressure fluid to a discharge line 52.
Patent GB-685045-A (GB)
Title: Improvements in or relating to conveyors
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B65G21/22
Filed: 1949-03-29
Abstract: 685,045. Endless conveyers. KING, Ltd., G. W. Jan. 20, 1950. [March 29, 1949] No. 8499/49. Class 78 (i). A track for a conveyer of the kind comprising slats supported on a pair of spaced parallel endless chains, consists of a pair of spaced parallel track members each comprising at least one track section made up of sheet metal bent or folded to form two parallel grooves or channels constituting running surfaces for supporting wheels or rollers of the endless chains, the arrangement being such that on assembly of the track, the upper and lower running surfaces will be provided at opposite sides of the conveyer tu support the upper and lower flights thereof. In the embodiment shown, the conveyer comprises slats 14 carried by spindles 13 which are secured at their ends on parallel endless chains 30 and support rollers 13<SP>1</SP> which engage in channels 11, 12 formed in sheet metal sections 10 secured end-to-end. Hardened strips 16 fixed in the channels constitute running surfaces for the rollers. The sections 10 are braced at their lateral edge portions by legs 17 and are secured to one another by bolts 18, 19 engaging abutting legs.
Patent GB-378905-A (GB)
Title: Improvements in or relating to apparatus for polishing or grinding the internal surfaces of hollow bodies
IPC: B24B33/08
Filed: 1931-03-19
Abstract: 378,905. Internal grinding. AGOS. TONI, G. G., 36, Viale Certosa, Milan, Italy, March 19, 1931, No. 8500. Convention date, March 20, 1930. [Class 60.] Rotating-tool apparatus.-In an apparatus for the internal grinding of conical &c. surfaces a driving spindle 18 is positioned by a steady roll 32. A conical or other shaped port of the spindle engages radial wedges 20 cooperating with radial plates 25 carrying abrasive blocks 24. The blocks are positioned in slots in a slotted shell 26a and are held by spring rings 21. The wedges are moved axially by a tube 19. Rotation of a knurled ring 8 moves axially a nut 13 attached to the tube 19 and moves the wedges to adjust the abrasive blocks. Rotation of a knurled ring 3 moves axially a nut 5 carrying a stop 5<1> for the nut 13 to control the limit of adjustment of the wedges.
Patent GB-927641-A (GB)
Title: Method and means for determining the crushing strengths of solid materials
IPC: G01N3/10
Filed: 1960-03-10
Abstract: 927,641. Testing crushing strength. STAMICARBON N.V. March 10, 1960 [March 13, 1959; June 16, 1959], No. 8522/60. Class 106 (2). Apparatus for testing crushing strengths of pieces of material 3, e.g. agglomerated fuel pieces, comprises a fixed pressing member 1 and a reciprocatable pressing member 2 operated by pressure on a piston 5 in a cylinder 6 containing oil 7. Compressed air is supplied through valves 16 and according to the position of the piston 17 in a valve 15 raises or lowers the piston 5. In the position shown compressed air is applied to the surface 8 of the oil 7 and the member 2 applies pressure to an ovoid 3. When the ovoid is crushed a control-rod operates a valve 13 causing movement of piston 17 so that the piston 5 is raised until the control-rod 12 operates a valve 14. This causes movement of piston 17 to the position shown in Fig. 1 and piston 5 is again lowered. The ovoids 3 are placed in a channel 21, Fig. 3, in the member 1 between spaced fingers 20. Each upward movement of the piston 5 causes a control-rod 29, wedge 18, rod 27, ratchet-wheel 25 and shaft 28 to rotate the fingers and bring an uncrushed ovoid to the position below member 2. The crushed ovoid is swept away by the fingers and may be disposed of through an aperture 22 in the member 1. In an alternative construction, Fig. 6, the ovoids 3 are placed on members 5 hinged to the fingers and crushed ovoids are discharged when the member 5 passes over an aperture 10 and swings downwards.
Patent GB-558225-A (GB)
Title: Improvements in and relating to the acylation of sulphonamides
Filed: 1942-06-22
Abstract: 558,225. Sulphonacylamides. KATSCHER, E., and WARD, BLENKINSOP & CO., Ltd. June 22, 1942, No..8541. Sample furnished. [Class 2 (iii)] Salts of acyl derivatives of sulphonamides are made by treating sulphonamides in the form of their N-salts with carboxylic acid amides. The sulphonamide group may be attached to an alkyl aryl aralkyl or heterocyclic residue and the carbamido group of the acid amide may be attached to hydrogen or to an alkyl aryl or aralkyl residue. The hydrogen atoms of the carbamide group may be free or one or both may be substituted by the same or different groupings. If the sulphonamide contains addition free or substituted amino group there is a tendency for this group also to become acylated, a tendency which increases with the temperature. The free acylated sulphonamide may be liberated from the salt by treatment with an acid ; and where two acylation products are produced, these may be separated by differences in their solubility. In examples (1) Anhydrous sodium sulphanilamide and acetamide are melted together until the evolution of ammonia has ceased when the reaction mixture is taken up with acid and the two products N 1 -acetylsulphanilamide and N 1  N 4 -diacetylsulphanilamide are separated. (2) Anhydrous sodium sulphanilamide and acetamide are heated together and the excess of acetamide removed under reduced pressure, to give a product consisting only of N 1 -acetylsulphanilamide. (3) Sodium N 4 -acetylsulphanilamide is melted with N 4 -acetylsulphanilamide and the product extracted with acid, to give N 1  N 4 -diacetylsulphanilamide and N 4 -acetylsulphanilamide. (4) Molten sulphanilamide is stirred with sodium hydroxide and acetamide added, the heating being continued while ammonia is evolved. There are obtained N 1 -acetylsulphanilamide, N 4 -acetylsulphanilamide and N 1  N 4 - diacetylsulphanilamide which are separated by means of their varying solibility in dilute acid. A sample has been filed under Sect. 2 (5) of formyl sulphanilamide prepared by heating sodium sulphanilamide and formamide together until no more ammonia is evolved and treating the sodium salt so formed with free formic acid. Specification 541,958 is referred to.
Patent GB-453861-A (GB)
Title: Improvements in or relating to perforated-record controlled mechanism
Filed: 1935-03-19
Abstract: 453,861. Perforated - record controlled mechanism; statistical apparatus. BRITISH TABULATING MACHINE CO., Ltd., Victoria House, Vernon Place, Southampton Row, London. March 19, 1935, No. 8588. Convention date, March 20, 1934. [Class 106 (i)] Perforated - record controlled mechanism wherein each record 1 is fed between a rotating contact roller 5 and a row of wire reading- brushes 4, the latter engaging the roller through the holes to complete electric operating circuits, is characterized in that the surface of the contact roller is roughened to agitate the wires forming the brushes. The roughening consists in forming grooves 9 helically of the roller. Fig. 3 shows the grooves 9 in section. Instead of the grooves running in one direction (Fig. 2) they may cross each other ; or other forms of irregularities may be made on the surface of the roller. The gear train 6 driving the feed rollers 3 for the cards 1, also drives gear 8 attached to roller 5, so that the latter rotates counter clockwise, Fig. 1.
Patent GB-1495622-A (GB)
Title: Rendering electrostatic charge images visible
IPC: G03G15/08
Filed: 1975-02-28
Abstract: 1495622 Developing electrostatic images SIEMENS AG 28 Feb 1975[4 March 1974] 8594/75 Heading G2H As spray 2 and grid electrode 2 apply toner to photo-conductive layer 6 the absorption of radiation from source 16 at the resulting developed images is monitored by transducer 19, and a resulting control signal is used to control the rate of supply of toner. Preferably the radiation is infrared and the supply of toner is cut-off when the optical density of the applied toner exceeds a threshold value.
Patent GB-751135-A (GB)
Title: Dichlorostyryl-pyridinium compounds and process for the manufacture thereof
IPC: C07D213/26
Filed: 1954-03-24
Abstract: The invention comprises 1-alkyl-2- and 4-dichlorostyryl-pyridinium salts.  Such compounds are obtained by reacting a 1-alkyl-2- or 4-methyl-pyridinium salt in the presence of a secondary amine as a catalyst with a dichlorobenzaldehyde.  The initial 1-alkyl-2- or 4-methyl-pyridinium salts are obtained by quaternisation of a - or g -picoline with, for example, alkyl halides, alkyl sulphates or alkyl-p-toluene sulphonates.  Piperidine is a suitable catalyst and absolute alcohol a suitable reaction medium. In example (1), 1,2-dimethyl-pyridinium iodide and 3,5-dichlorobenzaldehyde are reacted in alcohol in the presence of pyridine to give 1 - methyl - 2 - (31,51 - dichlorostyryl) - pyridinium iodide.  Examples 2 to 17 describe further 1 - alkyl - 2 - and 4 - dichlorostyrylpyridinium salts in which the alkyl group is selected from methyl, ethyl, n-hexyl, n-octyl and n-dodecyl radicals.  The styryl radical is selected from those chlorinated in the 2,3-, 2,4-, 2,5-, 2,6-, 3,4- and 3,5-positions and the anion is an iodide or bromide radical.  1 - (n - Hexyl) - 2 - methyl pyridinium bromide, 1 - (n - octyl) - 2 - methyl pyridinium bromide and (1 - (n - dodecyl) - 4 - methylpyridinium bromide are obtained by reacting the appropriate picoline with the appropriate alkyl bromide.