baber/WOPTO huggingface dataset:
Patent GB-1374023-A (GB)
Title: Centrifuge
IPC: B04B11/04
Filed: 1972-02-02
Abstract: 1374023 Centrifugal separators PENNWALT CORP 2 Feb 1972 [26 Feb 1971] 4979/72 Heading B2P A sludge centrifuge, Figs. 1 and 2, comprises a rotatable bowl 14, with an annular, inwardly extending liquid-overflow lip 34 at one end of the bowl, feed outlet means 21 disposed near the opposite end of the bowl and radially inwardly fromthe overflow lip for discharging feed radially toward the peripheral wall 32 of the bowl, means 26 and/or 42 for removing accumulated sludge from the wall, and a plurality of radially extending accelerator vanes 54 angularly. spaced from 4‹ to 30‹ apart from one another. The inner edge of each vane being disposed radially, as seen in plan view, anywhere between the feed outlet means 21 and a point located one-half inch outwardly from the overflow lip 34, the outer edge of each vane being disposed radially outwardly from the overflow lip a distance equal to at least one-third the total distance a from the overflow lip 34 to the peripheral wall 32, and each vane being wholly disposed in the end portion of the bowl opposite the overflow lip, the axial dimension e of the end portion being not more than one-third of the total axial length c of the bowl. This arrangement of accelerator vanes is stated to improve flow orientation, reduce turbulence and greatly increase the effectiveness of the separation process. Feed slurry is introduced into the bowl 14 through a stationary tube 16 provided with a solenoid valve 18 and opening into a core 20 from which the slurry exits via the outlet means 21. Alternatively, the slurry may be fed through a single pipe or via a feed receiving cup having one or more conduits extending to the bottom of the bowl. Accumulated sludge may be removed by means of a skimmer 24 which is reciprocable by a pair of pneumatic piston-cylinder assemblies. Subsequent to the skimmer 24, or instead of it, a knife blade 42, mounted by means of arms 41 on a shaft 40 rotatable by a motor 38, is used to remove the sludge, the latter in this case being discharged through openings 44, 46 in the bowl and housing respectively. The knife blade has a notch 56 which cooperates with the vanes 54 to allow the blade to be moved radially outwardly towards the wall 32. In a modification, Figs. 3 and 4 (not shown) only the skimmer (24a) is used and the accelerator vanes (54a) have no inner and outer rims and extend to the bottom of the bowl. In a further modification, Fig. 7B (not shown), the accelerator vanes (54c) do not extend completely to the wall (32c) of the bowl. In Fig. 7A, the vanes 54b are used in conjunction with a knife blade 42b and extend completely to the bowl bottom 33b which is inclined to minimize sludge accumulation. Other dimensions are given.
Patent GB-1261962-A (GB)
Title: Hole structure and method of forming the same
IPC: B29C48/11
Filed: 1969-01-29
Abstract: 1,261,962. Spinneret. BRUNSWICK CORP. 29 Jan., 1969 [30 Jan., 1968], No. 5015/69. Heading B5B. [Also in Division B3] A spinneret for use in preparing a coalesced filament of plastic material comprises a plurality of discs 44 provided with passages 49 the maximum cross-section dimension of each of which is under 500 microns. The passages are T-shaped and inclined to the disc axis so that when the discs are mounted in a circular plate 46 in a duct 47 plastic material extruded through the spinneret forms a multi-strand filamentary bundle. The cross-section of the passages can be of any shape having a plurality of straight sides e.g. polygonal, rectangular, square, triangular, hexagonal or star-shaped.
Patent GB-305828-A (GB)
Title: Improvements in the treatment of artificial silk
IPC: D06M11/155
Filed: 1928-02-17
Abstract: 305,828. Terrell, C., (Representative of Terrell, T.). Feb. 17, 1928. Yarns &c., treating with liquids.-Viscose silk in the form of skeins is delustred by producing in and/or on the filaments or threads of the silk an insoluble uncoloured opaque precipitate by impregnating the silk with an aqueous solution of a salt, drying it, and then treating it with an aqueous solution of a salt capable of producing the precipitate by double decomposition with the first salt; one or other of the salts, may be replaced by a suitable base. For example, the silk may be impregnated with an aqueous solution of a barium salt such as barium chloride, dried, and then treated with an aqueous solution of a soluble sulphate such as ammonuim sulphate or of ammonium carbonate, or the solutions may be applied in the reverse order. Similarly, precipitates may be produced from solutions of sodium silicate and a soluble aluminium salt such as aluminium nitrate, or from solutions of a calcium salt and a carbonate. The silk may be washed before and after the delustring treatment.
Patent GB-366297-A (GB)
Title: An improvements in or relating to hose couplings
IPC: F16L37/084
Filed: 1931-02-18
Abstract: 366,297. Pipe couplings. BLAKEBOROUGH, R. A. and KLOUMAN, F. A., Woodhouse Works, Brighouse, Yorkshire. Feb. 18, 1931, No. 5091. [Class 99 (i).] In a hose-pipe coupling a socketb carries a number of spring-pressed pawls e having inclined faces el which are engaged by a collar a<2> on the spigot a to depress the pawls, which spring out behind the collar to retain the spigot. For disconnection a sleeve g is moved towards the socket and rotated so that projections g<1> engage the curved inner faces e<2> of the pawls and move them back into the recesses d. A cup - leather packing ring c is provided in the socket adjacent the tapered surface a<1> of the spigot.
Patent GB-142958-A (GB)
Title: Improvements in or relating to concrete or material for similar plastic compositions
IPC: C04B28/10
Filed: 1919-03-01
Abstract: 142,958. Bravin, G. A. March 1, 1919. Concretes and mortars.-A concrete for making building blocks or slabs consists of cement (or Lime) 1 measure, breeze or furnace residue, clinker, ashes, &c. 3 to 4 measures, lime (or lime putty) 1 measure, with or without wood sawdust ¢-1 measure. To produce a dry powder, the breeze &c. and lime putty are ground together wet and then dried, and the resulting lumps are ground with the cement (or lime), with or without the sawdust. For immediate use, the breeze and lime putty are ground together wet, and the cement mixed with water is ground in. Preferably, the breeze and lime mixture is allowed to stand 2 or 3 days before grinding in the cement, or the wet concrete should be kept for a like period before use. Slabs &c. of the composition may be reinforced.
Patent GB-508404-A (GB)
Title: Improvements relating to valves for controlling fluids
IPC: F16K3/36
Filed: 1938-02-19
Abstract: 508,404. Rotary disc valves. AUDLEY ENGINEERING CO., Ltd., and LEACH, R. W. Feb. 19, 1938, No. 5242. [Class 135] In a rotary disc valve a renewable ported plate k is provided on the seating member d (as shown), or the closure member e or both, and is held, e.g. by dowels, against relative movement thereto, grooves around the ports on either side of the plate being supplied with lubricant or sealing substance to prevent leakage. The lubricant is supplied from a chamber r under pressure of a piston s (spring- loaded or subject to the pressure of the controlled fluid or both), through a channel y in the actuating spindle j, to a chamber z, whence it passes by channels q and a non-circular chamber 4 in the plate k to annular grooves o around each port l ; in the service positions of the valve, the chamber 4 also communicates with radial grooves in the closure member e, these grooves at the same time communicating with an annular groove 2 through the dowel holes in the plate. The chamber is replenished from a reservoir 6 through a check valve 8 by means of a screw 7, and sealing grooves 9 and 16, supplied in a similar manner, may be provided. The valve comprises an inlet similar to the outlet f<1>, but at right-angles thereto, which in the position shown intercommunicates therewith through holes such as h<1> in the closure member e, and the space g. On rotation of the member e through 90‹, the passage f<1> intercommunicates with a further passage, opposite the inlet, through a groove i, the inlet still communicating, by the hole h<1>, with the space g, so that in both positions inlet pressure obtaining in the space g assists in pressing the closure member upon its seat.
Patent GB-219256-A (GB)
Title: Improvements in or relating to buckles
IPC: A41F11/12
Filed: 1924-02-29
Abstract: 219,256. Jackson, W. J., Mellersh-, (Waterbury Buckle Co.). Feb. 29, 1924. Buckles.-A buckle has a one-piece wire frame bent to form a continuous upper bar 6, side bars 7, two inwardly-extending aligned loops 8 forming the lower part of the frame 10, and two gripping arms 9 for nipping the end of the webbings 15 between them and the loops 8, thereby attaching the webbing without sewing. A lever 11 is pivoted to the upper bar. The webbing is attached by the gripping arms 9 when these are bent to the position shown in dotted lines in Fig. 5. It is then passed over the loops 8 and taken in a loop 17 from rear to front and passed through the frame from front to rear, under the gripping edges of the arm 12 of the lever 11, as shown in Fig. 3. In use, the buckle is held in adjusted position by the edge of the arm 12 of the lever 11 bending it and pressing it downwards on to the cushion 16 formed by pushing the webbing over the loops 8. The edges of the arm 12 may be serrated.
Patent GB-198408-A (GB)
Title: Improvements in golf balls
IPC: A63B37/00
Filed: 1922-02-23
Abstract: 198,408. Morris, W. G. Feb. 23, 1922. Balls.-The cover of a golf ball is pressed on to the core in a heated mould, only sufficient heat being employed to mould the cover to shape and make a good joint between the parts of the cover. The ball is then removed from the mould and subected to a gas process of vulcanization, such as the Peachey gas process. The vulcanization process employed preferably entails no further heating. The material of the cover consists of india-rubber, balata, or gutta percha, or mixtures thereof and contains no sulphur.
Patent GB-163781-A (GB)
Title: Improvements in or relating to wire edged covers of pneumatic tyres and an improved process of and machinery for covering or preparing the endless wires of same
IPC: B29D30/50
Filed: 1920-02-23
Abstract: 163,781. Bates, Ltd., W. & A., Healey, J., and Shaw & Co., Ltd., F. Feb. 23, 1920. Tyres, elastic, special apparatus for making.- In apparatus for covering endless for use in the edges of tyre covers, a strip 4 of solutioned canvas &c. is fed into a groove 6 of a pulley 2 over which, and a similar pulley 1, the wire 3 is strained. The upstanding edges of the strip 4 are folded over by a pivoted arm 8 which rests on the ledges 7 of the groove and carries a weighted rod 11. The arm 8 is raised by means of a camlever 23 whose movement is limited by a lug 25 engaging a stop 26. For manipulating and tensioning the wire 3, the pulley 1 is mounted on a spindle 17, the tension being maintained by a weighted arm 18.
Patent GB-276248-A (GB)
Title: Improvements in or relating to controllers for electrically operated motors
IPC: H02P3/06
Filed: 1926-05-18
Abstract: 276,248. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). May 18, 1926. Obtaining reciprocacating motion; travelling a fixed distance.- In control a motor for effecting reciprocating movements. as in a garment press, a switch 11 having two contacts 12, 13 closes the motor r circuit through a stationary contact 15 when a racked bar 19 gearing with the switch spindle 16 is moved by hand to the left from the off ' position shown in the figure. When the motor has run for half-a-revolution it carries a pin 21. against a projection 20 on the racked bar which is thus returned to the original position, breaking the motor circuit. A mechanical braking action is automatically applied at the end of each stroke. Specification 276,071 is referred to.
Patent GB-592517-A (GB)
Title: Improvements in or relating to the manufacture of solid polymers and interpolymers of ethylene
IPC: C08F10/00
Filed: 1945-03-05
Abstract: Solid polymers and interpolymers of ethylene are prepared by subjecting ethylene in the presence of anhydrous benzene and a dialkyl peroxide to a pressure exceeding 400 atmospheres and a temperature between 100 DEG  and 300 DEG  C., the weight ratio of benzene to ethylene being between 0.9 and 4.7 to 1 for a continuous process and between 0.6 and 1.2 to 1 for a batch process. Peroxides specified are dimethyl, diethyl, methyl propyl, di-tert.-butyl, distearyl, dibenzyl and dicylohexyl peroxides. Interpolymers with vinyl fluoride, tetrafluoroethylene, vinyl and vinylidene chlorides, methyl methacrylate, vinyl acetate, N-vinylphthalimide, N-vinyl succinimide and dimethyl fumarate or maleate are described.  The products may be formed into films, tubes and fibres, which may be oriented.  Paraffin wax may be added and the composition formed into wrapping foils. Specifications 471,590, 497,643, 569,927, 578,992, 582,890 and 592,486 are referred to.
Patent GB-190393-A (GB)
Title: Improvements in tunnel kilns
IPC: F27B9/30
Filed: 1922-02-24
Abstract: 190,393. Woodall, Duckham, & Jones (1920), Ltd., Duckham, Sir A. M., and Kent, A. T. Feb. 24, 1921. Addition to 177,561. Drawings to Specification. Gaseous-fuel furnaces.-In connection with improvements relating to the travel of the trucks through a tunnel kiln and the supply of heated air for drying the goods, means for firing the kiln, the same as those of the parent Specification, are described.
Patent GB-1456266-A (GB)
Title: Herbicide
IPC: A01N/
Filed: 1974-02-07
Abstract: 1456266 Solid herbicidal composition BASF AG 7 Feb 1974 [8 Feb 1973] 05589/74 Heading A5E A solid herbicidal composition comprises (a) from 10 to 60% by wt. of 1 -phenyl-4- amino-5-chloropyridazone-6 and, adsorbed on a particulate adsorbent solid carrier, (b) from 10 to 50% by wt. of 2, 3-dichloroallyl N, N- diisopropyl thiolcarbamate and/or 2, 3, 3-trichloroallyl N, N-diisopropyl thiolcarbamate, the concentration of (a) and (b) being in excess of 20% by wt. The carrier may be a siliceous material, e.g. silica gel.
Patent GB-243949-A (GB)
Title: An improved plant for use in the process of manufacture of metal tubes
IPC: B21B23/00
Filed: 1925-03-02
Abstract: 243,949. Hutchison, R. March 2, 1925. Rolling tubes. - Ingots pass from furnaces A to a piercing machine C driven by a motor D whence they travel on a rollerway E to a trolley F which runs on a track G and carries the hollow ingots to the mandrel carriage H of a pilgering roll I driven by a motor J. The partlyformed tube is then conveyed along a table K to an automatic discharge device L which delivers to a roller-way M whence, after passing through a re-heating furnace N, the tube is finally reduced in stages to the finished diameter in a reducing-mill O, preferably of the kind described in Specification 180,322, and driven by a motor P. The tubes may be cut into lengths by a saw Q before passing to the reducing-mill.
Patent GB-209624-A (GB)
Title: Improvements in and relating to hydraulic installations
IPC: F04D13/00
Filed: 1923-02-28
Abstract: 209,624. Weir, Ltd., G. & J., and Weir, J. G. Feb. 28, 1923. Regulating or controlling.-In an hydraulic installation the main service pipe h is supplied by a centrifugal pump a and an auxiliary pump c of any suitable type. The pump a is shown driven by a turbine b supplied with steam through the pipe e which also supplies the motor driving the auxiliary pump. Both pumps draw fluid from the tank t and the pump a discharges through a non-return valve v and pipe o. The steam supply to the turbine b is controlled by a pressure operated governor m so that steam is shut off when the pressure in the service pipe h exceeds a certain minimum. A by-pass k permits steam to pass to keep the pump running at a low speed. The centrifugal pump is able to meet the maximum demand upon the system. When the pressure in the service pipe is high, as under stand-by or low load conditions, the governor m closes the main steam supply to the turbine b and the system is supplied by the auxiliary pump c. When the pressure falls, the governor m brings the pump a into action. The driving motors may be electric.
Patent GB-252471-A (GB)
Title: Improvements in spinning and twisting artificial filaments
IPC: D01H1/06
Filed: 1925-03-03
Abstract: 252,471. Levy, L. A. March 3, 1925. Spindle apparatus. - A slotted cap g for use in spinning artificial silk in capframes is provided with a conical base h, and an opposed cone i is arranged coaxially therewith so that a space of about an eighth of an inch is left for the passage of the filaments which contact only with the lower edge of the cap. Slots j are provided in the cone i to permit the passage of the driving-belt as the bobbin is raised and lowered.
Patent GB-1357248-A (GB)
Title: Manufacture of synthesis gas
IPC: C10J3/12
Filed: 1972-02-08
Abstract: 1357248 Synthesis gas FMC CORP 8 Feb 1972 [11 Feb 1971] 5864/72 Heading C5E Fines, separated from a synthesis gas stream withdrawn from above a fluidized bed, are burnt to heat inert pellets which are introduced into the gasification zone in the preparation of synthesis gas by gasification of a carbonaceous solid with steam in a fluidized bed.
Patent GB-1412346-A (GB)
Title: Heat exchanger
IPC: F28D9/00
Filed: 1973-02-06
Abstract: 1412346 Heat exchangers J R WILSON 6 Feb 1973 5871/73 Heading F4S In a heat exchanger wherein two fluids respectively at different pressure flow in channels separated from each other by a heat transfer wall 16 which may be fluted or embossed, the wall is rigidly supported by a fluid-permeable mass of contiguous particles filling the whole of the channel carrying the lower pressure fluid the higher pressure fluid flowing in the unpacked channel. The wall 16 may, e.g. be made of titanium, or of polymerized tetrafluorethylene. The particles are preferably spherical beads (e.g. <SP>1</SP>/ 10  inch to ¢ inch diameter) of glass, plastics, ceramic or concrete. The particles may, e.g. comprise sand or gravel. As shown (and see also Figs. 16 and 17), the wall 16 is sinuously folded to provide channels 54 for one fluid alternating with channels 52 for another fluid. Cooling air flows through the channels 52 from one end to the other of a cover member 14; whilst a gas to be condensed or a liquid to be cooled flows in the channels 54 which are packed with the particles and communicate with inlet and outlet headers 18, 20. In another form (Figs. 14-15) the heat transfer wall is formed by a pair of sinuously folded sheets defining between them a channel (70) for one fluid, and the space outside the channel being filled with the particles. Uses of the apparatus may comprise condensers, water/air heat exchangers in dry cooling towers, fluid concentrators, multistage flash evaporators and vertical packed channel evaporators for sea-water desalting.
Patent GB-595728-A (GB)
Title: Improvements in pneumatic spring suspension of vehicles
IPC: F16F9/04
Filed: 1946-02-21
Abstract: 595,728. Road-vehicle spring-suspensions; pneumatic springs. LEES, A. Feb. 21, 1946, No. 6056/45. [Classes 108 (ii) and 108 (iii)] In a vehicle spring suspension of the type in which the body load is transmitted through inflated cushions spaced between flat horizontal surfaces on the sprung and unsprung parts of the vehicle, each cushion consisting of a tube of resilient material reinforced with canvas and having ends, Fig. 11, which 'are closed by being flattened and secured in such condition, a block of material C forming a seal or closure is vulcanised in one or each end or is secured therein by clamping bolts P. Each cushion B, Fig. 5, has an integral fin E on its upper and lower surfaces. each of which is clamped by bolts between the flanges of a pair of angle sections F by which it is secured to the spring and unsprung parts G, H respectively: In this construction the part G comprises a longitudinal chassis frame member to which a lever H carrying the axle J is pivoted at L. In an alternative construction, Fig. 6, not shown, the cushion B is disposed transversely of the vehicle with its upper fin bolted between two transverse channel-sectioned chassis frame members and the lower fin is bolted between a single channel member and the axle. In a further construction, Fig. 7, not shown, two cushions are provided for each axle end, one-arranged transversely and the other longitudinally, the fins of each being bolted to a bracket having two angle sectional portions spaced apart and at right angles. In an alternative construction of cushion the upper and lower horizontal surfaces have beaded longitudinal edges which engage in grooves formed in the sides of a shallow channel shaped member which may be formed by a pair of angle sections placed together with adjacent flanges vertical and the remaining flanges horizontal and coplanar, their edges being turned inwardly to form the channel. The upper and lower surfaces of each cushion may be thickened and reinforced by a horizontal metal strip.
Patent GB-540978-A (GB)
Title: Improvements in or relating to the production of azo dyestuffs
IPC: D06P1/12
Filed: 1940-04-04
Abstract: 540,978. Dyeing textiles. HEATON, J. S., and HOWIS, C. C. April 4, 1940, No. 6111. [Class 15 (ii)] Azo dyes, forming on the material; printing.- Stable preparations for use in the production of azo dyestuffs on the material to be dyed, by the action of steam alone and without the use of acid, are obtained by diazotizing aniline or an alkyl or alkoxy-substituted derivative thereof, re-acting the diazo compound with an aminomonocarboxylic acid of the benzene series, free from sulphonic acid or sulphonamide groups and having the amino group unsubstituted, and mixing the resulting diazoamino compound with a coupling component in presence of an amount of a fixed alkali sufficient to neutralize all the acid and hydroxyl groups present. Specified substituted anilines for use as diazo components are o-, m- and ptoluidines, o- and p-anisidines, p-phenetidine, 4-m-xylidine, p-xylidine and #-cumidine and specified amino-monocarboxylic acids for use as stabilizers are o-, m- and p-aminobenzoic and 3-amino-4-methylbenzoic acids. In examples, (1) an aqueous paste containing the sodium salt of the diazoamino compound from diazotized p-xylidine and o-aminobenzoic acid is mixed with di-(acetoacetyl)-tolidine and aqueous caustic soda and a neutral or weakly caustic thickener is added ; the resulting paste may be printed on a cellulosic fabric and developed to a yellow print by steaming ; (2) the coupling component in (1) is replaced by the anilide of 2 : 3-hydroxynaphthoic acid to obtain a scarlet print ; (3) the diazo component in (1) is replaced by #-cumidine to obtain a yellow print. Specification 466,846 is referred to.
Patent GB-1070494-A (GB)
Title: Improvements in or relating to continuous band filters
IPC: B01D33/04
Filed: 1965-02-12
Abstract: An endless filter medium (e.g. cloth) (8), Fig. 1, (not shown) is supported by preferably two endless bands (1, 1\sv)(e.g. of rubber with reinforcing fabric embedded therein), travelling side by side and separated longitudinally by a narrow gap (5).  A stationary suction box (12) extends beneath the upper run of the bands and under the gap.  Each band has an upstanding rib (2) or (2\sv) along its outer edge only, and has transverse drainage fluites (4, 4\sv), Fig. 2 (not shown), communicating with the gap. The gap is maintained by spacers (6), Fig. 3 (not shown), at intervals, those at the ends of the suction box serving to prevent ingress of air thereto.  In a modification, Figs. 4 to 6 (not shown), the bands abut instead of being separated by a gap, and each abutting edge is formed by a wall extending no higher than the tops of the ribs separating the flutes. Drainage perforations are provided near the abutting edges.  In a further modification, not illustrated, the two bands are associated with a third band travelling between them and having no upstanding edge ribs.  Two longitudinal gaps equivalent to gap (5) are thus provided and a suction box is disposed beneath each of them.  A perforated rubber cloth may be inserted beneath the filter medium.