baber/WOPTO huggingface dataset:
Patent GB-1383818-A (GB)
Title: Filtration method
IPC: B01J47/12
Filed: 1972-03-09
Abstract: 1383818 Filter aids BAYER AG 9 March 1972 [12 March 1971] 10946/72 Heading BID [Also in Division Cl] A liquid suspension is filtered by passage through a filter body precoated with a filter acid, wherein the precoat is formed by contacting the filter body with a homogeneous suspension of ground polyacrylonitrile or polyamide fibres, still retaining a fibrous structure, to form a homogeneous coating. Suitably, the ground fibres have a denier range of 1 to 50 dtex and are added in a quantity of 125 to 1250 g. per sq metre of filter surface. Active carbon and/or an ion exchanger may be added to the ground fibres when forming the precoat. The filter apparatus may comprise a plurality of horizontal or vertically upstanding or depending filter candles formed of stainless steel, fibres or other sintered materials. The examples relate to the treatment of condensates from heat-generating stations, saccharine juices and electrolyte solutions.
Patent GB-309493-A (GB)
Title: Improvements relating to the regulation of windmills
IPC: F03D7/02
Filed: 1929-04-09
Abstract: 309,493. Constantin, L., and Beaulieu, P. Fortier-. April 11, 1928, [Convention date.]. Screw-motors; regulating.-Relates to the regulation of windmills. The wind vane 3 which controls the setting of the head 1 carrying the main wheel 2 is itself adjusted by differential gearing 4. One pinion 12 is driven by the main wheel 2 through gearing 13, 14, and the other pinion 15 is driven by a governed auxiliary motor 17, which may be a wind motor or an electric motor, through gearing which may comprise a change speed box 22. The differential casing 4 is connected by gearing 5, 7, 10 to' the base member 11 of the wind vane system 3, which may be of the type described in Specification 192,764, [Class 4, Aeronautics &c.]. The vane system 3 may adjust the mill head 1 by actuating a servomotor arrangement as described in Specification 292,917. The auxiliary wind wheel 17 may act as the servo-motor. Specification 228,918 also is referred to.
Patent GB-352416-A (GB)
Title: Improvements in or relating to road and rail vehicles
IPC: B60F1/02
Filed: 1930-04-07
Abstract: 352,416. Rail-or-road vehicles. RENDLE, W. E. EDGCUMBE-, 5, Victoria Street, London. April 7, 1930, Nos. 11032 and 13608. [Class 108 (ii).] A road wheel is adapted to be moved axially to engage with or be disengaged from the hub of a rail wheel and when disengaged is mounted on a rotatable eccentric carrier which may then be adjusted to support the road-wheel in its inoperative position. In the construction shown in the Figure the hub of the road-wheel 1 is adapted to engage with and be locked to the hub 2 of the rail wheel 3 which is mounted on the axle 31. The road-wheel is then secured in position by the nut 4 which is screwed on to the end of the hub 2. When the nut 4 is turned so as to free the hub of the road-wheel 1 the two may then be moved outwards on to the carrier 8, the wheel being secured on the carrier by the nut 4 which engages the threads 7. The wheel is further secured on the carrier by radial bolts 14 which engage recesses 14<1> in the interior of the hub. The bolts 14 are moved in one direction by springs and in the other by cams on an adjustable spindle 12. The support 8 is fixed eccentrically to a disc 9 which is mounted in the casing 11 and may be rotated through an angle of 180‹ to raise the support 8 to the position shown in dotted lines. A catch 17 holds the disc in its upper or lower position. In a modification the carrier is connected by an eccentric pin to the casing 11 and is adjusted by an arm working in a semicircular slot. Two such wheels mav be arranged in tandem in one casing. v
Patent GB-232997-A (GB)
IPC: A47B23/04
Filed: 1925-04-28
Abstract: 232,997. Mendelsohn, S. April 28, 1924, [Convention date]. Boxes combined with supports.-A collapsable booksupporting frame l is detachably secured to a telescopic support a hinged at one end of a case z so that the whole can be folded into the case; a chamfered tongue 4 on the hinged lid 3 of the case engages a notch 1 on the support a to hold this firmly in the upright position.
Patent GB-352423-A (GB)
IPC: B42F13/28
Filed: 1930-04-07
Abstract: 352,423. Filing papers. VEIL, J. F., Floreat Lindum, Kings Road, Westcliff-on- Sea. April 7, 1930, No. 11061. Convention date, April 10, 1929. [Class 146 (i).] A letter file comprises filing prongs a, b carried by frames c, i and d, k respectively, pivoted together at l and maintained in the closed or intermediate positions by a spring-actuated lever m engaging the lateral members i, k of the frames, the frame c, i being hinged at f adjacent to one of the folds e of the cover so that the complete file mechanism may be turned through 90‹ relatively to the file back with the member c lying adjacent to the file back, and the frame d, k may then be turned through 180‹ so that the member d also lies adjacent to the back, both sets of prongs a, b being finally in an upstanding position. During the movement of the frame d, k relatively to the frame c, i, the lever m engages notches n in the members i, k to limit the movement until manually released. In order to open the file mechanism when it is resting in its normal position on the back of the cover, the lever m is lifted and engages a stop q on the member i so that the pivot l is lifted and the frames opened.
Patent GB-473431-A (GB)
Title: Automatic regulating apparatus for use in connection with sieves for washing granular material
IPC: B03B5/24
Filed: 1936-04-17
Abstract: 473,431. Washing granular materials. SPINETTA, D. April 17, 1936, No. 11069. [Class 82 (ii)] [Also in Group XXXV] The discharge of heavy products from a jig washer is controlled as long as the depth of the bed varies only to a small extent from the mean depth, by an air cock which is opened or closed by the movements of a float and which governs the air pressure above the discharge end of the bed, but when the variations in the depth of the bed become extreme the movements of the float actuate through a relay a movable blade, slide, or sill which increases or decreases the rate of evacuation of the shale. The layer of shale 3 on the sieve 2 passes through a discharge opening formed by adjustable dampers 7 and 8, the amplitude of the water pulsations passing through the opening being governed by the air pressure in a chamber 20 which communicates with the atmosphere through a cock 19. The cock 19 is connected to a float 15 which follows the water pulsations in a tube 16 passing through the ore bed and the sieve. The connection is such that when the movement of the float is small the cock 19 closes, when the movements are average the cock remains stationary, and when they are large the cock opens. Additional means which operate only for extreme conditions of the shale layer are provided to control the discharge of the shale. In the form shown, the means comprise a pivoted blade 9 below the sieve which in the position 13 will allow the full force of the pulsations to act at the discharge opening and in the position 14 practically stops the passage of water through the end of the sieve. Instead of a blade below the sieve a vertically adjustable damper which varies the size of the discharge opening may be used. The blade or damper is connected by a rod 27 to a two-armed lever 26 and is normally held in a mean position by means of a counterweight 21 acting through a toothed wheel 22 on a toothed pinion 24 on the axis of the lever 26. When the thickness of the shale bed reaches a predetermined maximum or minimum an electric circuit is closed which acts on a solenoid 28 or 29 to tilt the lever 26 and move the blade or damper against the action of the counterweight. The closing of the electric circuits is preferably effected by the movements of the cock 19. the circuit containing the solenoid 28 being closed when the cock is fully opened and the circuit with the solenoid 29 when it is completely closed. When the float returns towards its mean position the circuit is broken and the blade or damper returned to its mean position by the counterweight 21.
Patent GB-804136-A (GB)
Title: Magnetic tape recorder driving mechanism
IPC: G11B15/28
Filed: 1955-04-18
Abstract: 804,136. Magnetic recording apparatus. V.M. CORPORATION. April 18, 1955 [April 26, 1954], No. 11071/55. Class 40 (2). In a magnetic tape or wire recorder driving- mechanism comprising a frame 10, take-up and supply reels 42, 58, a power-driven capstan 24, and a pivotally-mounted carriage-bar 12 carrying a pressure roller 26 for holding tape 28 against the capstan, a reciprocably mounted operating arm 18 is connected at one end to the carriage bar 12 and at the other end pivotally to a rockable brake lever 34 biased by a spring 48 to move a brake shoe 36 mounted on the lever to engage a drum 40 rotatable with the take-up reel 42 in which engaged position the brake is held by a locking-device 50 engageable with an operating arm detent 52; reciprocation of operating arm 18 alternately moves the pressure roller 26 into and out of the position engaging the tape with the capstan 24 and the brake shoe 36 out of and into take-up reel braking position, and the mechanism is said to eliminate audible surge clicks caused by starting and stopping of the tape by arranging that the brake shoe stops the take-up reel just after the pressure roller releases from the capstan so that castiing of the supply wheel 58 slackens the tape 28. The operating arm 18 is manually operable and is biased by a spring 30. A motor, not shown, drives the take-up reel via a wheel 46 and slipping belt 44.
Patent GB-1429346-A (GB)
Title: Separating apparatus having a strainer and a method of cleaning a strainer
IPC: B01D29/00
Filed: 1973-03-07
Abstract: 1429346 Cleaning filters; screening apparatus CELLECO AB 7 March 1973 [29 March 1972] 11182/73 Headings BID and B2H The straining means (e.g. plate, endless belt, rotary drum) of a separating apparatus (e.g. for classification or filtration of a paper suspension) is cleaned by spraying a gas or liquid e.g. steam, water) onto its upstream side whilst a reflector is in surface contact with its downstream side to reflect the gas or liquid. The reflector may comprise a plate, a roller or rotating arms. In Fig. 1 the straining plate 2 is cleaned by rasing plate 9a against its undersurface by means of hydraulic cylinder 11 and spraying it with fluid from nozzle 5. During filtration of a suspension sprayed from nozzle 5 the filtrate containing fine particles is discharged from chamber 4 maintained under vacuum, through outlet 6 and the larger particles retained on plate 2 are discharged through outlet 7.
Patent GB-954119-A (GB)
Title: Copolymers
IPC: C08F10/00
Filed: 1962-03-23
Abstract: A mixture of ethylene and 2 to 3.5% of isobutylene or propylene is copolymerized at 28,000 to 35,000 psi and at 400 DEG  to 450 DEG F., using a catalyst such as t-Bu perbenzoate, t-Bu peracetate or di-t-Bu peroxide preferably in the presence of a carrier such as mineral oil, benzene or saturated hydrocarbons.  The polymerization may be in bulk or in the presence of benzene or water and may be with a continuous feed having a residence time of 15 to 60 seconds.  The products may be of density 0.9195 to 0.9225 and melt index of 1 to 5 and find application as film having improved optical properties, e.g. for use in the packaging of foodstuffs, soft goods, pharmaceutical and surgical supplies, hardware, toys and garments.
Patent GB-273226-A (GB)
Title: Improvement in propelling devices for water craft
IPC: B63H1/36
Filed: 1927-04-28
Abstract: 273,226. Hansson, O. April 28, 1927. Vibrating plates or fins.-In propellers for ships of the type comprising oscillating flexible wings with elastic stiffeners, the stiffeners are each actuated by an oscillating shaft whereby the wing is flexed correctly for each stroke. The propeller 1 comprises two wings having an outer flexible sheet 2 of cloth unpregnated with a celluloid solution or consisting of brass strips hinged together. Forward and rear edge stiffeners 3, 4 are joined at the. tips and at the centre are connected to a hollow shaft 5 and concentric inner shaft 6 respectively. Arms 8, 9 are secured to the shafts and have connecting pedals 10, 11 whereby relative oscillation of the shafts and both flexing and oscillation of the wings can be produced. The arms 8, 9 can be actuated by power.
Patent GB-559377-A (GB)
Title: Improvements in or relating to power supply systems for carrier communication systems
IPC: G05F1/46
Filed: 1942-08-14
Abstract: 559,377. Automatic control systems for electricity supply. STANDARD TELEPHONES & CABLES, Ltd., and KELLY, R. Aug. 14, 1942, No. 11403. Drawings to Specification. [Class 38 (iv)] Voltage.-Rectified current is supplied to the anode and cathode heating circuits of thermionic valves used in a telecommunication system, from separate secondary windings of a transformer, tappings on the primary winding of which are automatically adjusted to maintain constant the load voltages by a reversible motor controlled by a relay subject to the voltage across the anode supply or to the sum of the voltage across both supplies. The voltage regulator may be of the kind described in Specification 515,948.
Patent GB-541797-A (GB)
Title: Improvements relating to processes for the manufacture of styrene
IPC: C07C15/46
Filed: 1940-07-08
Abstract: 541,797. Preparation of styrene. INSTITUTO PER LO STUDIO DELLA GOMMA SINTETICA., and NATTA, G. July 8, 1940, No. 11409. Convention date, July 8, 1939. [Class 2 (iiij] Styrene is prepared from ethyl benzene by a dehydrogenation process and the resulting mixture of styrene and ethyl benzene is separated by distilling the hydrocarbon mixture in the presence of water under conditions resulting in the formation of a mixture of the azeotropes, and rectifying the mixture. The distillation is carried out with the use of a column, the ethylbenzene - water azeotrope distills from the top of the column and the styrene-water azeotrope distills from the bottom of the column. The temperature at the top of the column is maintained at a temperature between the respective boiling point temperatures of the two azeotropes. If desired small amounts of naphthenes, scarcely volatile phenols and like anti-agers may be added to the distillation vessel to inhibit the polymerization, of the styrene. The amount of water used need not be the full amount corresponding to the azeotrope of ethylbenzene and water provided a sufficient reflux of ethyl benzene is maintained. The rectification may be either intermittent or continuous. To obtain completely pure styrene a second distillation is desirable also in the presence of water. In this case the styrenewater azeotrope is withdrawn from a point part way up the column, and the products issuing from the top of the second column-are conveyed to the top of the first column.
Patent GB-114759-A (GB)
IPC: A45C5/02
Abstract: 114,759. Brooks, W. M. Sept. 8, 1917. Corner joints and strengthening-pieces; covered boxes and trunks.-The corners of a box, trunk, case, &c. are strengthened by bars 1, Fig. 2, which may be secured, in place by nails 9 and have a covering 4 of leather, fabric, &c. Extensions 6 of the covering 4 are passed between adjacent boxmembers 2, 3, and are secured thereto by stitching 8. The members 2, 3 may have a covering 7 of leather or fabric, which may be integral with the covering 4. In the modification shown in Fig. 3, a binding-strip 10 of leather &c. is stitched to extensions of the coverings 4, 7. The side 2 of the box may extend beyond the side 3, as shown in Fig. 4, in which arrangement only one thick. ness 5 of the material 4 is disposed between the parts 2, 3. In another modification, a vertical strip 11, Fig. 5, of leather is placed between the member 2 and the covering 7, an external binding- strip 10 being employed.
Patent GB-114818-A (GB)
IPC: B29C33/02
Abstract: 114,818. Robert & Desaules, and Barbier, A. March 31, 1917, [Convention date]. Heating b y electricity. - An electric vulcanizer comprises a twopart pressing- member a, b, the member a being provided with resistance coils and with a mercury thermometer f for controlling an electro-magnetic cut-out m, n, p as soon as the desired temperature is reached. The thermometer f is provided with contacts connected to terminals h, h<1> so that, when the mercury reaches both of these contacts, part of the heating current is shunted through the solenoid p of the cut-out. The switch comprises a fixed contact o, and movable contact n forming one arm of a lever pivoted at l, the other arm carrying a counterweight m. Contact is broken when the solenoid p is energized and raises a non-magnetic plunger q attached to the core of the magnet. Contact may be made again by depressing a finger s on a pivoted lever. The main terminals are shown at K, K<1> and those of the heating-coil at e, e<1>.
Patent GB-366359-A (GB)
Title: Improvements in or relating to radio and other high frequency receivers
IPC: H04B1/16
Filed: 1931-04-17
Abstract: 366,359. Valve amplifying and detecting circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Roberts, W. van B. ; 155, Hodge Road, Princeton, New Jersey, U.S.A.) April 17, 1931, No. 11492. Convention date, April 17, 1930. [Class 40 (v).] A radio receiving-circuit comprises a detecting valve, preferably a tetrode, with its anode directly connected to the input grid of a following pentode valve. The received signals are applied to the tuned input circuit 5, 8 of the detector tetrode 6, with or without the interposition of a high-frequency amplifier 1. The screening-grid circuit of the tetrode may be used to supply reaction to the input circuit 5 by means of the coil 12. The plate 14 of the tetrode is directly connected to the input grid 16 of a pentode output valve 17. Coupling between the tetrode and pentode is afforded by virtue of the high resistance R6 in the plate circuit of the former. Plate and grid bias voltages are supplied from a series of resistances R1 .. R5 connected across a source of HT voltage. The detector valve is shown with an indirectly-heated cathode 7, the other valves being directly-heated. Hum is reduced by adjustment of the slider 25 on a resistance R2, the slider being connected through a condenser C to the cathode 7. The return lead to the cathode 7 includes a resistance R7 which in conjunction with an adjustable slider 27 gives correct bias to the input grid of the tetrode 6. The pentode filament 18 has an inductance 20 .connected across it, the mid-point of which is connected to a point 31 on the potentiometer resistance R4.
Patent GB-1101332-A (GB)
Title: Improvements relating to a method of concentrating aqueous solutions of ammonium phosphate or sodium phosphate
IPC: C01B25/40
Filed: 1965-03-18
Abstract: In a method of concentrating aqueous ammonium phosphate or aqueous sodium phosphate, water vapour obtained by concentrating the phosphate in vacuo in an evaporator consisting of a heat transfer device is used for diluting concentrated sulphuric acid and the resulting heated dilute sulphuric acid is utilized as a heating fluid in the evaporator of the phosphate solution. Apparatus similar to that indicated in the parent Specification may be employed.
Patent GB-912145-A (GB)
Title: Torque indicator and/or controller
IPC: G01L3/02
Filed: 1960-04-01
Abstract: 912,145. Measuring torque. HINDMARCH, T. March 14, 1961 [April 1, 1960], No. 11517/60. Class 106 (2). [Also in Groups XXIV, XXIX and XXXIII] A torque indicator comprises a shaft 1 carrying a helical gear 2 and mounted in a thrust bearing 3 whereby the shaft moves axially in response to changes of torque. A piston 4, having a groove 5 in communication with a chamber 10, is moved in response to changes of torque to connect the chamber 10 to an inlet 12 or exhaust 13 to vary the pressure until the piston is moved to the neutral position shown. The chamber 10 is connected to a pressure gauge 9 which gives the measurement of torque.
Patent GB-494020-A (GB)
Title: Improved process for the regeneration of waste of artificial and synthetic leathers
IPC: C08L89/06
Filed: 1937-04-22
Abstract: Artificial leather waste, consisting of animal, vegetable or mineral fibres agglutinated by synthetic resins such as vinyl or glycero-phthalic resins, or dimethylol urea, is disintegrated by passage between differentially geared rolls at a temperature of 50 to 60 DEG  C., and then mixed with a solvent such as a chlorinated hydrocarbon.  Agents for producing a second condensation or polymerization of the binder, such as sulphonic acid for glycerophthalic resins or caustic alkali for phenolformaldehyde resins, may be added during the mixing, also softeners, fillers and fibres.  The mix may be extruded, calendered, or moulded.ALSO:Artificial leather waste, consisting of animal, vegetable or mineral fibres agglutinated by rubber, synthetic resins, or siccative oils, is disintegrated by passage between differentially geared rolls at a temperature of 50-60 DEG  C., and then mixed with a solvent, such as a chlorinated hydrocarbon. Agents for producing a second vulcanization, condensation or p  polymerization of the binder may be added during the mixing, also softeners, fillers and fibres. The mixture may be extruded, calendered, or moulded.
Patent GB-317505-A (GB)
Title: Improvements in or relating to beacons, lighthouses and the like
IPC: B64F1/20
Filed: 1928-04-19
Abstract: 317,505. Green, H. N. April 19. 1928. Lighthouse, revolving, and like lamps. -A drum lens 4 for an aerial beacon or a lighthouse is of circular crosssection and is composed of prisms arranged to give herizontal distribution of light to form a signal by combining a number of beams of equal divergence and intensity so that light of uniform intensity is received simultaneously from the whole area of the lens contributing to each beam. The lens 4 is rotatably mounted within a fixed drum lens 1 arranged to give the required vertical light distribution, and the light source 2 is arranged at the focal centre of the lenses. The arrangement of prisms shown in Fig. 2 transmits the letter A in Morse three times during each revolution of the inner lens, the, short flash being exhibited on the portion of the lens subtending the angle b and the long flash on the portion subtending thej angles c, d, e. The leading edge of the beam beginning the group and the lagging edge of the beam ending the groups are equally inclined on opposite sides of the line bisecting the angle a enclosing the group of flashes.
Patent GB-879502-A (GB)
Title: Improvements in electric light fittings
Inventor: LOEBL RONALD FREDERICK
IPC: F21V31/00
Filed: 1960-04-01
Abstract: 879,502. Lighting fittings. LOBLITE Ltd. April 1, 1960, No. 11594/60. Class 75(4). An electric light fitting comprises a body 1 on which a lamp is mounted and a well glass 2 securable to the body and serving to enclose the lamp, the body comprising a resilient sealing member positioned to correspond to the edge of the glass and a plurality of locking plates 7 attached to the body at spaced positions by screws engaged in slotted holes in the plates and threaded into the body, the plates being arranged to bear against the glass and press it into sealing engagement with the sealing member. An undercut on the plate 7 engages a nange 10 at both ends of the glass which seats on a resilient sealing washer 5 in a trough in the body 1. The slotted holes in the plates 7 allow the plates to slide sideways to remove the glass. Each plate has three bearing lugs 7a, to bear on the glass and body, and a finger flange 13a. The body has a hole 17 at each end for the electric wires which pass through a tunnel member 18 in the body. A lamp socket is carried on a bracket which is removably mounted on the body.