baber/WOPTO huggingface dataset:
Patent GB-659444-A (GB)
Title: Improvements in continuous disk filter
IPC: B01D33/23
Filed: 1948-03-04
Abstract: 659,444. Rotary disc filters. HUNTER, H. M., DICKEY. G. D., and GENTER, A. L. March 4, 1949, No. 6045. [Class 46] The lateral edges of the sector filtering elements of a sectionalized continuous suction disc-filter converge inwardly from the disc perimeter and are tangential to a circle concentric with the disc shaft whereby upon rotation of the disc the trailing edge of each element on the submerging side of the disc becomes horizontal at a level below the shaft axis. As shown in Fig. 9 the filtering sector elements are mounted between and supported by spaced tubular spokes 58 secured to the shafting 59 by means of rods 67 extending through the spokes 58 and threaded into the shaftring 59, the said rods 67 being provided at their outer ends with means for closing the outer ends of the spokes 58, e.g. by metallic bushings 66. A cross channel member 69 which together with spoke 58 and channel side member 71 forms a frame for the sector filter elements constitutes a drainage connection between members 58 and 71 and communicates with the interior of spokes 58 by a slotted opening 70 in the wall of spoke 58. The outer edge of the channel side member is transversely concaved as at 72, Fig. 10, to co-operate with the spoke 58 of the adjacent sector. A backing plate for the filter medium e.g. a corrugated plate 73 is secured in the frame, the passages or corrugations draining into the channel member 71, and also into the spoke 58 through openings 75. The interior of the spokes 58 fit telescopically over centring nipples 64 communicating with openings 60 in the ring 59 said openings forming part of the filtrate conduits of the shaft. Alternatively the tubular spoke 58 may be replaced by a channel member, and an outlet neck then projecting from the crosschannel member such as 69, in parallel relation to the leading spoke which in this case takes the form of a rod such as 67 secured at one end to the shaft ring 59 and, by means of a finger bearing on the edge of the backing plate, clamps the sector element with its neck outlet telescopingly fitted over a nipple communicating with the filtrate conduits of the shaft. The filter shaft 12, Fig. 18, comprises ring sections 13 such as ring section 59, Fig. 9; and intermediate relatively wide spacer sections 14 held together by means of bolts 18 which extend through a shoulder on bearing portion 15 and through a closure cap forming a part of bearing portion 16. Tank extensions 29 receive each disc filter individually and permit dropping the cakes discharged from the filters by scrapers 32 and 33, by gravity through the space 30 between said extensions. The opposite portion of the tank 11 receives the discs collectively. The backing plate may consist of a plurality of pieces held together in the frame by means of a bolt 57, Fig. 9.
Patent GB-1139075-A (GB)
Title: Apparatus and process for mechanically demoisturing and further treating filter press cakes of pigment or dispersion dyestuffs
IPC: B01F7/00
Filed: 1966-02-11
Abstract: 1,139,075. Filter cake demoisturing. FARBWERKE HOECHST A.G. 11 Feb., 1966 [12 Feb., 1965], No. 6163/66. Heading C4P. [Also in Division B1] Azo dyestuffs, in the form of cake from a filter press, are further demoistured by kneading in a container 3 having a pervious surface 2 on which a stationary layer of dyestuff is maintained 0À5 to 8 mm. thick by suitable spacing of roll 1, while maintaining a pressure difference across the said layer to expel liquid therethrough, the kneading consisting of alternate periods of fast and slow action with a speed ratio in the range 1/3 to 1/20 between them until no more liquid is obtained. The roll 1 describes a sun-and-planet movement round container 3, the two rotations being independently driven by variable speed motors (speeds given). Dyestuff is delivered by inlet 6, which may be subsequently used to apply pressure gas, and outlet 16 is connected to an air suction pump. Treated dyestuff is discharged by screw extrusion press 4, 5, whose tapered outlet may prevent discharge of excessively wet material. The apparatus may be used to treat the dyestuffs further, by adding washing water or other liquids able to displace the residual liquid, mixing therewith and again demoisturing. The spacing between roll 1 and fine mesh fabric (30 microns) or perforated surface 2 is adjusted by raising and lowering the drive-shaft 12, by nuts 14, 15.
Patent GB-692229-A (GB)
Title: Improvements in or relating to sintering apparatus
IPC: F27B21/06
Filed: 1951-03-14
Abstract: 692,229. Sintering apparatus. METALLGES., AKT.-GES. March 14, 1951 [April 28, 1950], No. 6179/51. Class 82(i) A sintering apparatus comprises an endless sintering band in the form of a horizontal loop, two pairs of sprocket wheels 8, each pair engaging the band at one end of the loop, a driving motor 3 disposed remote from the band, reduction gearing 4 driven by the motor and connected to a driven shaft on which sprockets 7 are mounted to drive the said pairs of sprocket wheels by means of chains. The chains may be Galle chains as described, for example, in French Specification 3922/1829, namely sprocket chains with laminated links. Between each sprocket and the reduction gearing may be interposed couplings 5 and 6, one of these couplings consisting of two unequally divided coupling plates such as 10 in Fig. 4, having 32 holes, and 11 in Fig. 3 having 36 holes, the plates being connected by shearresistant pins through at least two aligned holes.
Patent GB-164118-A (GB)
Title: Piano mandoline
IPC: G10D3/16
Filed: 1920-03-02
Abstract: 164,118. Mitchell, M. March 2, 1920. Mandolins, keyboard; plectra. - An instrument, termed a piano-mandolin, comprises two strings 2 strung over a rectangular body 11, which strings are simultaneously stopped by means of a keyboard 1, being plucked by a spring- wire 17 carried on the end of a bar 3 continuously rotated by a crank-handle 12 and gearing 18. The keys are mounted in saw-cuts in a wooden bar, on a rod passing therethrough, and an elastic cord under the keys returns them after being depressed. Specification 17545/00 is referred to.
Patent GB-1122453-A (GB)
Title: Improvements relating to methods of recovering luminescent material
IPC: H01J29/24
Filed: 1967-02-09
Abstract: 1,122,453. Luminescent coatings. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 9 Feb., 1967 [12 Feb., 1966], No. 6271/67. Heading B2K. [Also in Division H1] In a method of preparing a luminescent screen on a picture surface of a substantially rectangular face plate 1, in particular of a color TV tube, a luminescent material suspension is applied to the picture surface, the face plate rotated about a non-vertical axis to provide a uniform coating 6, and an excess of suspension 7 allowed to accumulate at the picture surface edge 2, the rotational speed being increased so that the suspension layer is dried uniformly and the excess suspension deposited in flexible receivers 4 preferably of synthetic plastic, held against the edge of and at each corner of the face plate.
Patent GB-1451532-A (GB)
Title: Centrifuges
IPC: B04B1/02
Filed: 1974-02-12
Abstract: 1451532 Centrifugal separator PELLERIN ZENITH AB 12 Feb 1974 [13 Feb 1973] 06346/ 74 Heading B2P A centrifuge comprises a shaft 1 supported by bearings 11 at its opposed ends and driven by a motor (not shown); a cylindrical drum 2 having end walls 3, 4 and coaxial with the shaft; two pairs of channels 5, 6 and 7, 8 provided in the shaft with their mouths at opposite ends of the drum and establishing communication between the interior of the drum and outlet conduits at the two ends of the shaft which are adapted to supply untreated feedstock and to discharge treated material, respectively; at least one sationary disc 9 located between the mouths of one pair of channels and extending at right angles to the shaft and having a radius smaller than that of the drum; and an annular piston 10 coaxial with the shaft and having a radius substantially equal to that of the drum, the piston being movable along the shaft from an extreme position at one end of the drum to an extreme position at the other end of the drum. When separating phosphatide sludge from fatty oil treated with phosphoric acid, the oil/sludge mixture is fed through channel 6. The sludge is centrifugally separated against the wall of the drum and, if of low viscosity, moves laterally therealong and through the annular gap between the disc 9 and the drum wall and discharges through channel 5. The oil is drawn off through channel 7. When the centrifuge is to be stopped and emptied, the feed of oil/sludge mixture is interrupted and water is supplied through channel 6. The water becomes interposed between the oil and sludge in the drum and expels the oil through channel 7. Water is then supplied through channel 8 to move the piston 10 towards the disc 9, Fig. 4, and force the mixture of sludge and water through the channel 5. The same procedure may be used to discharge highly viscous sludge which does not by itself move through the gap between the disc 9 and the drum 2. When the piston reaches its end position in which it bears against the disc 9 the supply of water through channel 8 is interrupted. To put the centrifuge back into operation, oil/sludge mixture is first supplied through the channel 5 to move the piston 10 to the right past the mouth of channel 6, the supply being then switched over to channel 6 to return the piston to its original position. The supply of water to dislodge the oil from the drum may be dispensed with and in this case the oil contained in the drum at the closure of channel 6 is discharged with the sludge through channel 5. In another embodiment, especially for treating oils with highly viscous sludge, a further disc is placed between the mouths of the channels 7 and 8 and the piston is movable between the discs.
Patent GB-103057-A (GB)
Title: Improvements in the Manufacture or Treatment of Cotton Yarns and Fabrics.
IPC: D06M11/38
Filed: 1916-05-04
Abstract: 103,057. Tootal Broadhurst Lee Co., and Lester, J. H. May 4, 1916. Knitted fabrics.-Consists in a combination of krown processes resulting in the production of a cotton yarn or fabric having the appearance and feel of yarn or fabric consisting wholly or partiallv of wool. Undyed unspun cotton (preferably Peruvian cotton) is mixed with dyed unspun cotton on with different shades or colours of dyed unspun cotton and spun. Or different shades of dyed unspun cotton, for example black dyed cotton and blue dyed cotton, or undyed cotton of different shades, such as brown Egyptian cotton and white Peruvian cotton, may be mixed together and spun. In each case, the spun yarn is shrunk by means of caustic soda, sulphuric acid, &c. The yarn so obtained may be woven or knitted into fabric, either alone or in combination with other kinds of yarn; or the unsbrunk yarn may be woven or knitted into fabrics which are afterwards shrunk.
Patent GB-322139-A (GB)
Title: Improvements in or relating to cylinder heads of internal combustion engines
IPC: F02F1/36
Filed: 1929-02-27
Abstract: 322,139. Guy, S. S. Feb. 27, 1929. Cylinders, heads for, and combustion chambers and internal passages of.-Fractured valve heads are prevented from falling into cylinders having sloping head joints and inclined valves, by making the clearance f less than the distance from the valve head to the root g of the curved part of the valve. A conical projection b having a flat part b<2> and a hollow part b<1>, which is arranged to form this clearance, and may be independent of the head, also produces turbulence. Specifications 121,977 and 150,767 are referred to.
Patent GB-972397-A (GB)
Title: Wheel rim attachment for a tubeless tire
IPC: B60C17/04
Filed: 1962-02-20
Abstract: 972,397. Pneumatic tyres. W. L. LINDLEY. Feb. 20, 1962, No. 6436/62. Heading B7C. To support the load and permit running of a vehicle in the event of deflation of a tubeless tyre 7, an auxiliary resilient-treaded wheel assembly is bolted to the rim base 6 within the tyre, the assembly comprising two rigid semicircular members 18, 19 each formed of a continuous inner part 20 connected by spaced radially and laterally outwardly extending webs 21 to a continuous outer tread part 30 having a transversely arcuate surface, of greater axial width than the inner part, on which is bonded a resilient tread 38 patterned by circumferential and transverse grooves 43, 44 to provide spaced blocks 45 which, when the assembly is operative, tend to feed the deflated tyre between the assembly and the ground and thus obviate bunching of the tyre in front of the wheel. As shown, the two assembly members 18, 19 seat in the well base of the rim, the webs 21 being appropriately shaped as shown in Fig. 3. Four of the webs 21, which in the assembly are spaced 90 degrees apart, are enlarged to present screw-threaded bores 54 aligned with openings 53 in the rim base to receive clamping bolts 52, the bolts having shank portions which cooperate with resilient bushes 56 in the bores 54 to seal the openings in the rim.
Patent GB-1108139-A (GB)
Title: Sterilisable suture containers
Inventor: EDGWORTH RAYMOND JOHN
IPC: A61B17/06
Filed: 1965-02-15
Abstract: 1,108,139. Suture containers. ARMOUR PHARMACEUTICAL CO. Ltd. 15 Feb., 1965. No. 6474/65. Heading A5R. A sterilisable suture container is made of polyacetal resin having at least one small hole 19 for removing condensed water and an aperture (27, Figure 6) for the removal of portions of the suture and to permit access of water or steam, and comprises two interengaging parts 10, 17 which are locked together by twisting one relative to the other in one direction and unlocked by twisting one relative to the other in the opposite direction to give free access to the container. The container parts are provided with complementary interlocking flanges 15, 23 or a screw thread (not shown). Each part has an internal boss 12, 20 for positioning one end of a spool (29) on which the suture is wound.
Patent GB-635712-A (GB)
Title: Improvements in or relating to television and like pick-up or camera cathode ray tubes
IPC: H04N5/228
Filed: 1947-03-07
Abstract: 635,712. Television. RADIO CORPORATION OF AMERICA. March 7, 1947, No. 6495. Convention date, March 8, 1946. [Class 40 (iii)] In a television system employing a pick-up tube of the type in which the target electrode is scanned by a low velocity cathode-ray beam, the return video modulated beam being intensified by an electron multiplier arrangement, output video signals are derived from the target electrode and from the electron multiplier and the two groups of output signals are fed to a combining circuit through low-pass and highpass filters respectively to produce a corrected composite video signal. The invention has for its object to eliminate undesirable variations in the video signal series generated by picture signal generating tubes of the " orthicon " type which employ electron multiplier arrangements integral with the tube, these undesirable variations resulting from movement of the point of impact of the return beam on the first electrode of the multiplier so that the current into the multiplier varies as the electron beam impacts points of different emission response. These variations are stated to occur at a frequency of about 100-300 kc/s. video signals above this frequency range being free from this effect. In accordance with the invention, therefore, output video signals from the final stage 48 of an electron multiplier incorporated in an " orthicon " type picture signal generating tube 10 are fed through a H.P. filter 60, cutting off at about 200 kc/s., and combined with output video signals, derived from the signal plate 14 of the target electrode (in which signals the undesired variations do not occur), fed through a L.P. filter 62 also cutting off at about 200 kc/s., an amplifier 64 being provided in the latter circuit to simulate the gain of the multiplier in the former channel, so that the combined signals comprise a composite video signal series which is free from the undesired effects. During blanking intervals, a positive pulse 57 is applied to both the cathode and control grid of tube 10 to reduce the velocity of the scanning beam so that no electrons reach the target whilst at the same time maintaining constant the current density of the beam to prevent undesirable fluctuations in the video signal output.
Patent GB-992632-A (GB)
Title: Improvements in or relating to control devices for burners
Inventor: NORRIS FRANK REGINALD
Filed: 1961-02-22
Abstract: 992,632. Controlling burners. PERL CONTROLS Ltd. Feb. 8, 1962 [Feb. 22, 1961], No. 6502/61. Heading F4T. [Also in Divisions G1 and G3] In a burner control system, energization of a solenoid 18 opens the fuel supply to a pilot burner and energization of solenoids 16 and 19, respectively opens the fuel supply to a main burner and holds open the fuel supply to the pilot burner, the arrangement being such that the main fuel supply cannot be opened until the pilot supply has been opened and until a signal has been received from a flame-sensitive device upon occurrence of a flame at the pilot burner. Valve arrangement (Fig. 2). The main fuel supply is controlled by a diaphragm valve 3 which has a pressure chamber 4 fed from the main fuel supply line 6 through a permanently open bleed passage 8 and through ducts 10 and 11 controlled by a valve 1a connected to a valve 1 which controls the fuel supply to the pilot burner through a line 12. A valve 2 operated by solenoid 16 controls release of pressure from the chamber 4 through a duct 5 and a flow restrictor 9 to the fuel outlet 7 from the main valve, the restrictor allowing sufficient flow to permit the diaphragm valve 3 to open when valve 2 is open and valve 1a closed, but preventing opening of the diaphragm valve when both valves la and 2 are open. Control circuit and operation.-When burner ignition is required, power is supplied through a transformer 13 to valves V 1  and V 2  and an ignition filament 29 in series with the cathode heaters 28. Conduction of current through the valve V 2  energizes solenoid 18 to supply fuel to the pilot burner and biases the valve V 1  below cut-off. After ignition of the pilot burner, the flame at the latter causes a flame rectifier 22 to become conductive, thus applying a negative bias to the grid of valve V 2  sufficient to cut off the latter. Valve V 1  is thus rendered conductive, causing energization of the holding solenoid 19 and the main fuel valve solenoid 16. If the fuel supply fails during operation, the negative bias is removed from valve V 2  and valve V 1  will cut off so that the main fuel valve closes and the pilot valve remains open to be relighted automatically on re-establishment of the fuel supply. The presence of a false flame signal due to a circuit fault will prevent burner ignition by rendering valve V 2  non-conductive. In modifications the filament 29 may be replaced by a spark or hot wire ignition device arranged to be activated through a transformer by a relay whenever the valve V 2  is energized, and the anode circuits of the valve may be fed with D.C. In a further modification, Fig. 3 (not shown), the flame rectifier is replaced by a photo-electric cell which, through a third thermionic valve and a rectifier circuit, cuts off the valve V 2  when irradiated with light from the pilot flame.
Patent GB-360779-A (GB)
Title: A shedding mechanism for manually-operated looms
IPC: D03C19/00
Filed: 1931-03-03
Abstract: 360,779. Hand-power looms. MACK, E. A., Red Roof, Frampton Cotterell, near Bristol. March 3, 1931, No. 6535. [Class 142 (ii).] A shedding appliance for hand-power looms of the kind in which the healds are raisedby handoperated cords J passed through and wound round rollers C comprises a pair of brackets each consisting of three boards A, L, P. The rollers C, to each of which the upper parts of the healds are attached bv means of fine steel rods D passed through eyelets E on a flattened part of the roller, are provided with pins F taking into holes B in the upright parts A of the brackets. The cords J pass through holes in the ends of the rollers, are secured by their knotted ends, and, after passing around the rollers, pass through holes in the horizontal parts L of the brackets, where they are secured to other cords M which are connected according to the tie-up and fastened to balls N adapted to be held in their lowered positions by engagement of their cords in slots in small brackets O fastened on the boards P. Holes Q are also provided on the boards P to permit the passage of light to facilitate the threading of the healds which are attached at their lower ends to weight rods H.
Patent GB-863679-A (GB)
Title: Improvements relating to electric components embedded in cast insulation
Inventor: PARRISS WALTER HENRY
IPC: H01B3/30
Filed: 1958-02-28
Abstract: Impregnatable electrical components, e.g. transformer coils, are embedded in cast insulation such as an epoxy or polyester resin by placing each component in a mould, investing it with a dry coarse grain filler, and introducing the insulation into the mould and causing it to permeate the filler and impregnate the component, the insulation then being allowed or caused to set. In one embodiment the transformer is first dried and then placed in a mould in a pressure chamber, sand from six hundred to one thousand five hundred microns in size is vibrated into the mould and epoxy resin applied to the transformer by alternate application of vacuum and pressure to the chamber so that a void-free casting is produced.