baber/WOPTO huggingface dataset:
Patent GB-705040-A (GB)
Title: Hydrocyclone apparatus and method of regulating the operation of such apparatus
IPC: B04C11/00
Filed: 1951-12-05
Abstract: 705,040. Centrifugal separators. DORR CO. Dec. 5, 1951 [Dec. 5, 1950], No. 28482/51. Class 23 In the treatment of a suspension in a hydrocyclone to produce either a thickened suspension, a clarified liquid, classified solids, or separated solids, variations in the consistency of the discharge from the outlet 10 due to variations in the composition of the feed are prevented by applying a constant suction to the outlet 11 and varying the area of the outlet 10 in accordance with the magnitude of the partial vacuum in the air core. A vacuum probe 12 entering into the core is connected by pipes 28, 14 to a device 15 which supplies compressed air to an annular rubber valve 18 so that the area of the outlet 10 automatically increases with increase in the magnitude of the vacuum in the core. Valves 22, 24 and a manometer 23 enable the automatic control of the area of the outlet 10 to be replaced by manual control. The pipe 9 giving the constant suction'may be replaced by a rotary pump or a steam ejector. In a modification, Fig. 3 (not shown), fluid from the outlet 11 discharges directly into a header tank before passing to the pipe 9 and a probe connected to the top of the tank is connected to a device supplying compressed air or oil to reciprocate a mushroom valve controlling the outlet 10. In the application of the invention to small hydro-cyclones the device 15 is dispensed with and the outlet 10 is controlled by a mechanical linkage operated by the probe itself. Specification 671,934 is referred to.
Patent GB-192454-A (GB)
Title: Improvements in or relating to teapots and like vessels
IPC: A47J31/14
Filed: 1921-10-28
Abstract: 192,454. Gordon, F. E. Oct. 28, 1921. Pots. - A strainer for tea-pots &c. comprises a shaped perforated plate a adapted to fit against 'the inside of the spout opening and provided with a curved spring handle d which may have a knob h. The lower edge of the plate and the free end of the handle take into fittings c, e on the body of the pot. Reference has been directed by the Comptroller to Specifications 2034/09 and 27397/11.
Patent GB-1284859-A (GB)
Title: Producing cylindrical castings
Inventor: MILMAN BORIS SAMOILOVICH
IPC: B22D19/16
Filed: 1971-06-18
Abstract: 1284859 Centrifugal casting machines TSEN. TRALNY NAUCHNO - ISSLEDOVATELSKY INSTITUT TEKHNOLOGII MASHINOSTROENIA 18 June 1971 [18 June 1970] 28734/71 Heading B3F Centrifugal casting apparatus comprises a mould 1 rotatable about a horizontal axis and having at one end an inlet hole 7 with tapered walls 14 at its outer end, a runner-forming member 16 with an outlet end 22 whose shape is congruent with that of the tapered walls, and means for pressing the outlet end 22 against the tapered walls 14. The member 16 is mounted on an arm (17) which is pivotable about a vertical axis so as to move the member 16 towards and away from the mould. It is pressed against the tapered walls 14 by means of a piston and cylinder unit (25) detachably connected to the end of the arm (17). The mould 1 has a cast iron housing 2, steel end-caps 3 and 4, steel bushings 5, moulded parts 10 and 11, a refractory lining 33, a steel disc 8 having a hole 9 for letting out gas, and a cast-iron insert 6. The junction between the rotating mould 1 and the stationary runner-forming member 16 is cooled by a spray of water so that plugs of solidified metal 35 and 36 form in the inlet hole 7 outlet 22 respectively and prevent communication between the molten metal in the runner system and that in the mould when the latter is full. The apparatus may be used to cast a composite roll, a flux being introduced into the mould between the pouring of metal for the outer layer 34 of the roll and that for the core 15.
Patent GB-1471386-A (GB)
Title: Interferometer for testing telescope optics
IPC: G01J9/02
Filed: 1974-06-28
Abstract: 1471386 Interferometers PERKIN ELMER CORP 28 June 1974 28908/74 Heading G1A [Also in Divisions G2-3] An interferometer for testing the optics of a telescope for alignment and aberrations comprises means 15 for collimating light received by the telescope, e.g. from a star, into a beam 16 which is split by plate 19 into a reference beam 18, which is reflected by a reflective dot 17 on the plate, and a transmitted main beam 20. The path length of the reference beam 18 is varied, e.g. by Piezoelectric pusher 32 and cube-corner reflector 23, and the beam 18 is expanded by reflectors 24, 25 so that it can be superposed on the main beam 20 after reflection at 21, 22'. The two beams 18, 20 interfere and detectors, e.g. photo-multipliers, sample the interference fringes at plane 30. If the phase detectors 36, 37 detect a difference in phase between 34 and 35, the surface of mirror 12 is not perfect and difference signal from 38 may be amplified at 39 to control actuators which make corrections to the mirror.
Patent GB-663150-A (GB)
Title: Improved jet nozzle for jet engines
IPC: F02K1/12
Filed: 1949-11-11
Abstract: 663,150. Jet propulsion plant. GENERAL MOTORS CORPORATION. Nov. 11. 1949 [Nov. 12, 1948], No. 28912/49. Class 110(iii) A variable area jet propulsion nozzle has a number of hinged segments which may be swung inwardly and outwardly to vary the area of the duct, the gaps between the segments being covered by auxiliary segments which also swing inwardly and outwardly. The main segments 13 are hinged at 15 to a ring 14 on the fixed nozzle section 11. Between the offset margins 21 of the main segments are the auxiliary segments 22 which are held at their forward ends and are slidingly connected at their rearward ends to the adjoining main segments 13 by the outwardly bent tongues 28. The main segments are connected towards their rearward ends by a hoop 29 whose circumference may be increased or decreased and which comprises a number of rods 31 connected by universal joints 32, each of the rods having left-handed and right-handed screwed portions which engage correspondingly screwed nuts 35 spherically mounted in cages 34 mounted in the trough-shaped brackets 33 secured to the main segments. The ends of the rods 31 are splined into the forks of the universal joints to permit the variation in the length of the hoop which is produced by rotation of the worm wheel 36 by the worm 39; the worm wheel 36 being mounted on the shank of a fork of one of the universal joints.
Patent GB-391148-A (GB)
Title: Process for the manufacture of pigments
IPC: C09C1/64
Filed: 1931-10-17
Abstract: Aluminium powder, anodically coated with oxide, is caused to take up a dye suitable for the production of a lake, for example, by immersion in a dye-bath, or simultaneously with the anodic treatment as described in Specification 359,495, [Group XXXVI]. According to an example, aluminium powder is treated in an electrolyte containing alizarin red, glycerol, and glacial acetic acid.  Specifications 223,995, [Class 41, Electrolysis], and 359,494, [Group XXXVI], also are referred to.
Patent GB-140351-A (GB)
Title: Improvements in hooks for angle iron beams
IPC: F16B45/02
Filed: 1919-11-21
Abstract: 140,351. Francis, P. Nov. 21, 1919. Load, engaging and releasing.-A lifting device for use with angle-iron beams, girders, &c. comprises a pivoted member H which is held in engagement with the girder &c. by a pivoted shackle S, to which a pull or load is applied. A cutaway portion of the shackle allows the jaws to open when the shackle is turned into the proper position.
Patent GB-323761-A (GB)
Title: Improvements in the manufacture of velvet cord
IPC: D03D27/00
Filed: 1928-10-09
Abstract: 323,761. Wolf, E. Oct. 9, 1928. Weft pile fabrics such as velvet cord with coloured patterns have dyed yarns for the warp and for the pile weft, the warp having or including a colour different from that of the pile weft, or from the colours of the weft when this is dyed in several colours, whereby the patterns produced by the weaving are accentuated. Reference has been ,directed by the Comptroller to Specifications 2108/81, 8021/85, 9101/89, 13082/89, 16494/91, 30536/97 and 7735/07.
Patent GB-1102015-A (GB)
Title: Substituted triazine compounds and their preparation
Inventor: ROW JOHN HENRY ALEXANDER
Filed: 1964-07-15
Abstract: The invention comprises 2,4-dichloro-6-(1,1,3 -trihydrotetrafluoropropoxy - 1,3,5 - triazine and the preparation thereof by heating cyanuric chloride with an alkali metal alkoxide of 1,1,3 -trihydrotetrafluoropropanol under reflux in an inert solvent. Suitable solvents are acetone and dioxan.
Patent GB-451551-A (GB)
Title: Improvements in and relating to wheel brakes
IPC: F16D69/00
Filed: 1935-10-22
Abstract: 451,551. Disc brakes for vehicles. ROTADISK APPARATEBAU GES., 63, Kopenhagenerstrasse, Reinickendorf, Berlin. Oct. 22, 1935, No. 29108. Convention date, March 12. [Class 103 (i)] The brake lining is secured on a flexible flat disc by grooving the surface, preferably by grooves having sharp edges which press into and hold the material on its support. The grooves in a disc a may be radial as shown at h, or annular rings i, or criss - cross grooves g.
Patent GB-291282-A (GB)
Title: Improvements in printing machines
IPC: B41F1/00
Filed: 1927-11-01
Abstract: 291,282. Aspinall, D. A. Nov. 1, 1927. P l a t e n machines. - A treadle-operated platen press of the kind in which the chase 3, Fig. 2, is integral with a fixed drum 2, around which the inking-rollers 28 are traversed, and the printing is effected by a swinging platen 11, is constructed with the platen pivotally mounted on the treadle-operated driving- shaft 6 and independently actuated through gearing and links from the shaft. The shaft 6 is the only rotary member mounted between the side plates 1, Fig. 1, of the press, and is geared to a disc 18 supported by one of the side plates 1 and fitted with an eccentric rod 17, Fig. 2, for operating a draw-bar 16 connected to toggle levers 13, 15 for actuating the platen 11. The shaft 6 is also geared to a wheel 26 mounted freely on a bolt 4 and connected to arms 27 in which are mounted the inking-rollers 28. The shaft 6 rotates three times for each complete rotation of the disc 18 and the arms 27. The rod 17 is supported also by a bar 21 fixed to the shaft 20 of the disc 18 and spaced from the disc by a sleeve 22.
Patent GB-836850-A (GB)
Title: Improved seal for containers
IPC: F16L23/18
Filed: 1957-09-17
Abstract: 836,850. Joint-making packing. RAZDOW, A. Sept. 17, 1957 [Sept. 18, 1956], No. 29182/57. Class 122 (3). [Also in Group XVIII] A container sealing arrangement comprises a hollow closed pressurized metal tube 9 having a wall thickness of not more than 0.006 inch and a coating 12, 12<2> of malleable material which may be either on the tube, Fig. 1, or on the faces of the container engaged by the tube, Fig. 2. The coating may be of silicone rubber, polytetrafluoroethylene, polymers of trifluorochloroethylene or soft metals such as copper, silver or gold or alloys thereof. The tube 9 may be of cold rolled or stainless steel, copper, &c., and the fluid 10 in the tube is preferably inert gas, for example nitrogen or helium or a mixture thereof, at a pressure preferably between 600 and 1500 pounds per square inch. This pressure may be obtained by any known means, e.g. by injecting into the tube a small amount of liquid gas at low temperature or a chemical in its solid state which when heated produces gas at the required pressure. In the arrangement shown in Fig. 5 the tube having a filling opening 11 is disposed in a container 13 to which gas is fed until the required pressure is reached, the opening 11 is then closed by brazing by means of an electric heating coil 16 and when the tube has cooled the pressure is released from the container and the closed pressurized tube removed.
Patent GB-1070645-A (GB)
Title: Improvements in or relating to sprocket wheels
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: F16H55/30
Filed: 1963-07-23
Abstract: 1,070,645. Chain wheels. GEO. W. KING Ltd. June 29, 1964 [July 23, 1963], No. 29209/63. Heading F2Q. A sprocket wheel comprises a central spur disc 11 and side discs 10 secured together by pins passing through apertures 12, recesses 15 being provided in the discs 10 to accommodate alternate links of a chain. The disc 11 is formed with recesses 16 to accommodate links lying in the plane of the sprocket wheel and to define spurs or teeth 17. The whole sprocket may alternatively be formed as a single casting.
Patent GB-784575-A (GB)
Title: Improvements in hysteresis motors
IPC: H02K19/10
Filed: 1954-10-11
Abstract: 784,575. Electric motors. LACY, R. D. Aug. 8, 1955 [Oct. 11, 1954], No. 29210/54. Class 35. In an hysteresis motor with a distributed stator winding, the teeth are magnetically bridged by strips inserted in the slot mouths. The strips 10 could have tabs 10a to rest against the inner surfaces of the heads of the teeth as shown in Fig. 3 or they may have tabs at their ends to wrap around an insulating member 26 placed at each end of the stator core as shown in Fig. 8. The rotor may be internal or external or the stator and rotor could be of disc form or conical. Specification 784,576, [Group XXXVIII], is referred to and Specification 576,249 also is referred to in the Provisional Specification.
Patent GB-307406-A (GB)
Title: Improvements in and apparatus for carrying out photochemical gas reactions
IPC: B01J19/12
Filed: 1927-11-02
Abstract: 307,406. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Nov. 2, 1927. Low-pressure metallic-vapour apparatus.-In effecting chemical reactions by subjecting gases to radiation from a discharge effected in metallic vapour, the discharge tube is arranged so that it surrounds or is surrounded by the reaction tube. The intensity of the discharge may be increased by admitting small amounts of gases of the argon group to the discharge tube, or by using high-frequency alternating current either alone or superimposed on direct current. Fig. 1 shows an apparatus comprising an iron vessel K containing a mercury anode Q and an incandescent cathode G. The reaction gas passes through quartz tubes I, J. Fig. 4 shows an apparatus having an annular discharge tube R. The reaction gas traverses the inner or outer spaces I<1>, I<2>.
Patent GB-740531-A (GB)
Title: Automatic telecommunication exchange system
IPC: H04Q3/00
Filed: 1950-12-01
Abstract: 740,531. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. Dec. 1, 1950 [Dec. 30, 1949], No. 29430/50. Class 40 (4). In order to identify a calling subscriber's line.in a system in which groups of lines are each served by a multipled set of switches, two recurring pulses are applied over a control wire of the switch connected to the line to an identification position, the time positions of the pulses each being one of two recurring cycles of pulses and respectively indicating the line within the group and the group of lines. The system utilizes combinations of pulses in a 1200 time unit cycle, the positions and lengths of the pulses being as shown in Fig. 9. Pulses Pa ... Pd are at - 16 v. with - 40 v. intervals and pulses Ra ... Rd are at - 50 v. with - 100 v. intervals. The pulses in each sixth time unit are not used for identification. Assuming the line La is connected over a line finder Ch to a cord circuit Cd and contacts LFHB1, LFHB2 and m1 are closed, the operator throws key CL 1 to obtain the caller's number, e.g. 2570. A gate common to the line finders serving the group of one hundred subscribers including the caller consists of rectifiers rd1 ... rd3 and a resistance r1 which are respectively connected to pulse sources Pa1 Pb1, Pc2, Pd4. During the time unit 391 of the cycle, this gate passes a pulse over the wire C to a pulse regenerator which delays the pulses one time unit and converts it into a pulse of - 50 v. with - 100 v. intervals. The combination of the pulse sources Pa, Pb, Pc determines the number 00 . . . 99 and the pulse source Pd4 determines that this number is that of the hundred subscribers served by the particular group of line finders. During the long pulse Pd1 connected over make contacts m1 a network of gates consisting of rectifiers ARCP, ARCS; BRCP, BRCS; CRCP for applying pulses characterizing the last two digits to each of the group of one hundred subscribers, applies a pulse derived from the pulse sources Pa1, Pb5, Pc3 indicating digits 70 over wire D1 of the calling line circuit and wire C to the pulse regenerator. The two pulses are identified by two groups VA, VA1 of fourteen cold cathode tubes. The circuits to the control electrodes of these. tubes are each controlled by a gate consisting of a -pair of rectifiers, one of which is blocked by the pulse source Rd1 or Rd4 depending on the group of tubes, and the other by one of the sources Ra2-6, Rb1-5, Rc1-4. Thus each of the identification pulses fires three cold cathode tubes, the anode relays of which actuate contact trees which light four lamps each indicating a digit of the callers number. This arrangement may be used in the system described in Specifications 737,865 and 737,866 in which case the pulse identifying the last two digits of a subscriber's number is used for controlling the line finders and for indicating the busy condition to final selectors.
Patent GB-1055214-A (GB)
Title: Textured surface painting and method
IPC: B44F11/02
Filed: 1965-07-12
Abstract: 1,055,214. Reproducing pictures. M. KLEIN. July 12, 1965 [July 16, 1964; Dec. 30, 1964], No. 29443/65. Heading B6P. To reproduce as to texture and colour an oil painting on canvas having brush and palletknife marks, a sheet 30 is printed with the boundaries of zones of various colours and numbers within said zones, and is then pressed between moulds 25, 29 formed from the original 20 so as to duplicate the contours of the original, and to form a margin 32 which may constitute a frame. A plastic coating 34 is then applied, followed by paint 35 of the requisite colours. The moulded sheet 31 is provided as part of a kit including tubes or containers of paint and a brush 36.
Patent GB-1267835-A (GB)
Title: Refining of potash ores
Inventor: WILSON MARTIN
IPC: C01D3/08
Filed: 1969-06-10
Abstract: 1,267,835. Treatment of potassium chloride ores. UNITED STATES BORAX & CHEMICAL CORP. 10 June, 1969, No. 29466/69. Heading C1A. Potash (KCl) particles containing hematite are cleaned by dissolving to form a hot solution, adding a clarifying agent comprising a primary alkylamine having 14-30 carbon atoms, or a clay dispersion or mixtures thereof and settling the slime by addition of a flocculating agent. The potash particles are preferably potash flotation concentrate separated from halite (NaCl) particles and may contain 1-5 pounds of hematite per ton of potash ore and is preferably pretreated by 2 flotation steps, the concentrate from the second being centrifuged to provide the impure potash as a filter cake and an effluent comprising flotation reagents and clay slimes which after thickening may be used as the clarifying agent. The flocculating agent is preferably anionic, and may be a polymer of acrylamide or a polysaccharide, e.g. a copolymer of acrylamide and acrylic acid. The preferred flotation reagents are primary fatty amines or salts thereof.
Patent GB-206352-A (GB)
Title: Improvements in friction clutches
IPC: F16D43/18
Filed: 1922-10-30
Abstract: 206,352. Bridge, R., and Bradshaw, E. Oct. 30, 1922. Clutches-Relates to clutches of the kind comprising internal wings d expanded into frictional engagement by screws e engaging the free ends i of the wings. To counteract the tendency of such clutches to burst, a lever g is pivoted upon a central lug f with its shorter arm g<11> adapted to pull inwards the free end i of each wing as centrifugal force acts on a mass g<1> on the longer arm. Specifications 6004/87 and 12119/00 are referred to.
Patent GB-903411-A (GB)
Title: Improvements in devices for use in crystal-pulling apparatus
IPC: C30B15/14
Filed: 1959-08-31
Abstract: <PICT:0903411/III/1> A rod 8 is pulled from a melt in a bowl-shaped crucible 2 connected by a conduit 6 to a cylindrical reservoir 3, melt being forced from the reservoir to the crucible by upward movement of a piston 4.  An area of more intensive heating is provided by the presence of two annular chambers 11 and 12 between the crucible and the reservoir.  The crucible, conduit, reservoir, and annular chambers are formed in a graphite cylinder 1 surrounded by an induction heating coil 7.  The clearance between the cylindrical reservoir and the piston may be 0,1 m.m.  Specification 903,412 is referred to.
Patent GB-815658-A (GB)
Title: A stapling machine
Inventor: MAYNARD ARTHUR HAYES
IPC: B25C5/02
Filed: 1956-09-28
Abstract: 815,658. Stapling machines. BOSTITCH Inc. Sept. 28, 1956, No. 29667/56. Class 89(3) In a stapling machine for inserting and clinching a staple S, Fig. 7, having a downwardly looped head and inwardly bowed legs, without the use of an anvil on the reverse side of the workpiece f, an anvil 60, Fig. 15, pivoted at the front of the staple driving throat, is provided with a lip 62 which sustains the downwardly looped staple head whilst the staple legs are driven in and clinched in overlapping relationship within the workpiece by a driver blade 40, Fig. 17. The blade 40 has an opening 66 which towards the end of the driving stroke moves into alignment with a cam projection 63 on the anvil 60, allowing the projection 63 to enter the opening 66 so that the anvil rocks to withdraw the lip 62 from beneath the head of the staple which is finally driven flat against the workpiece, Fig. 9. The anvil 60 is pivoted in a slot 55 in a gate 50, Fig. 14, which can be swung upwardly and outwardly, Fig. 4, to expose the throat so that it may be cleared in the event of it becoming clogged. When the gate 50 is opened the staples are prevented from escaping from the magazine 2 by a retainer 75 which may be raised against a spring to permit withdrawal of the staples or to permit the magazine to be re-loaded from the front. A spring loaded plunger 20, Fig. 11, mounted at the rear of the throat, is urged against the side of a staple being driven to frictionally prevent lateral displacement of the staple during the driving operation. The staples in the magazine are fed forwardly by a pusher 95 having a downwardly spring urged pawl 110 which engages the rearmost staple. The magazine is preferably re-loaded by inserting staples through its open rear end and then withdrawing the pusher 95 rearwardly so that the pawl 110 rides over the staples until it engages behind the rearmost staple. The rear end of the magazine is provided with a spring loaded detent (Figs. 1 and 2 not shown), which prevents any tendency for the staples to move rearwardly when the pusher 95 is withdrawn. The machine is operated by air pressure, the driver blade 40 being coupled to a piston in a cylinder which can be connected either to an air pressure supply or to exhaust by means of a trigger actuated valve in the handle, (Figs. 1 and 2 not shown). The machine may be operated manually by means of a suitable lever.