baber/WOPTO huggingface dataset:
Patent GB-1306151-A (GB)
IPC: G05B19/19
Filed: 1970-05-13
Abstract: 1306151 Screw-and-nut mechanism BENDIX CORP 13 May 1970 [13 May 1969] 23242/70 Heading F2Q [Also in Divisions B3 and G4] A lead screw 43 bears reference marks 57 along the crest of the thread which are sensed by sensors 54, 55, mounted upon the driven nut 42, to ascertain the position of the nut along the screw. The nut 42 is in two halves 61, 62 to avoid back-lash on change of direction and has external tubes 63 to circulate ball bearings. The marks may be magnetic or of the kind able to be sensed photo-electrically.
Patent GB-1270108-A (GB)
Title: Improvements in or relating to apparatus adapted for use in mixing plastics materials
Inventor: QUARMBY ROBERT CHARLES
IPC: B29B17/00
Filed: 1968-05-16
Abstract: 1,270,108. Mixing granular materials. BRITISH UNITED SHOE MACHINERY CO. Ltd. 15 May, 1969 [16 May, 1968], No. 23274/ 68. Heading B1C. [Also in Divisions B5 and B8] Apparatus for mixing granular plastics and supplying an injection moulding machine 60 comprises containers 104, 106 for two different grades or for virgin and re-granulated plastics which discharge to a jigging conveyer 26, the discharge rates being controlled by a sliding plate valve 112 having a large aperture 114 which gradually opens in succession the outlets 108, 110 and then closes them in reverse order so that any ratio of the two components can be obtained. The plate valve carries a divider 118, the flow along the jigging conveyor 26 is controlled by a vertically adjustable baffle 116. The mixture is conveyed by a blower 52 and tube 56 to a cyclone 58 where the air escapes at 68 and the granular material falls into a hopper 65. Sprues from the injection moulder 60 are discharged to an endless conveyor 82 and delivered to a re-granulator 16 and thence to container 106. Every closure of the mould actuates the air motor 70 to cause a plate 76 to descend on to the granules in the hopper 65; if it can descend far enough to cause a cam 74 to close a microswitch 78, 80, a stepwise movement of the conveyor 82 is effected and the jigging conveyor 26 is started. The conveyor 82 is driven by a piston pneumatic motor through a one-way roller clutch and has baffles to orient the sprues so that they are correctly presented to the regranulator 16.
Patent GB-1286938-A (GB)
Title: Improvements in or relating to piston rings
IPC: F16J9/06
Filed: 1971-04-19
Abstract: 1286938 Piston rings RAMSEY CORP 19 April 1971 [6 May 1970] 23393/71 Heading F2T  An oil control piston ring assembly 10 comprises a spacer-expander ring 11 having two axially spaced ring portions 14, 15 with scraper edges 24, 25 and a rail ring 12 supported on one ring portion 14 and urged axially and radially outward by spring fingers 20 extending from the other ring portion 15. The rings 11 and 12 are both split and the ring portions 14, 15 are formed by segments 17, 18 in staggered relation interconnected at their inner peripheries by legs 16. The spring fingers 20 extend between adjacent legs 16 into recesses formed by notches 19 at the ends of each segment 17 and have angled lips 21 at their free ends which contact the inner periphery of the rail ring 12 to urge it against the cylinder wall C and against the side wall of the ring groove G. In a modification, Fig. 6, struts 35 extend from the segments 18 across the channel 13 of the spacer-expander ring 31 to the segments 17 and prevent entry of the rail ring 12 into the channel 13 during installation in the ring groove.
Patent GB-245817-A (GB)
Title: Improvements in or relating to steam power plants
IPC: F01K3/00
Filed: 1924-10-03
Abstract: 245,817. Rosencrants, F. H. Oct. 3, 1924. Controlling and moderating superheat. - A steam power plant producing steam at high temperature and pressure, which is to be delivered at lower temperature and pressure to a low pressure turbine, has means for mixing saturated steam with superheated steam in predetermined proportions, the supply of both responding by means of automatic regulating devices to changes in pressure in the low pressure main, so that both pressure and temperature are maintained substantially constant in the low pressure main. From a high pressure superheated steam pipe 1 branch conduits 2, 3, having throttle valves 4. 5, lead to a low pressure main 17 and turbine (not shown). The conduit 2 communicates with a saturating chamber having water spraying nozzles 8 and contacting surfaces 10, e.g. copper rings, supported on a grid 11, the saturated steam passing through steam and water separators 7, 14, to a T-union 16 with which the conduit 3 and the low pressure main communicate. The throttle valves 4, 5 are coupled together so as to be operated in unison by the piston of a governing device shown as a hydraulic cylinder 19, water under pressure being admitted through a valve 24 which by means of a pipe 25 is under the influence of the pressure in the low pressure main. The valves 4, 5 accordingly respond to fluctuations of pressure in the main to maintain it constant within predetermined limits. The valves 4, 5 are initially set so that the resulting proportions of saturated and superheated steam mixed in the union 16 provide for the required reduction in temperature which is maintained in the low pressure main irrespective of changes in the quantity of steam delivered. A supply valve 38 prevents excessive pressure in the main due to leakages past the valves 4, 5 when closed.
Patent GB-396560-A (GB)
Title: Improvements in devices for gathering, raising or conveying materials such as stalk or root crops
IPC: A01D23/04
Filed: 1932-08-22
Abstract: 396,560. Lifting, gathering, and conveying crops &c. URSCHEL, W. E., 158, South Napoleon Street, Valparaiso, Indiana, U.S.A. Aug. 22, 1932, No. 23490. [Classes 6 (iii) and 58.] A device for gathering, raising, or conveying materials such as stalk or root crops, comprises a pair of generally parallel co-operating rotary units of which pair one unit at least consists of an assemblage of longitudinal bar-like members, each member having its ends oppositely cranked and being mounted for simultaneous planetary and individual rotational movement. The bars 1 are mounted in bearing blocks 2, 7 by extended bearing pins 3, cover plates 5, 8 being provided to protect the bearing surfaces. The bearing block 2 is keyed to a driving shaft 9 and the block 7 is rotatably mounted on a member 12 which in turn is pivotally secured to a spring-pressed support 14 that is adapted to yield should an excess of material be engaged by the device. The tension of the spring may be adjusted. The material is gripped between the device illustrated and a similar device in which the bearing blocks are driven in the reverse direction. The bars may be oval in transverse section. The device may be used for lifting root crops, pulling the head from the root or conveying the roots, such as beets, to cutting instrumentalities, or for harvesting cotton and like crops, the rotation of the blocks in this case being so directed that the stem of the plant is forced downwards, the mature bolls being left above the bars I. Indian-corn may be harvested in a similar way. The bars for harvesting Indian-corn may be smooth edged at their forward ends but provided with cutting edges at the rear so that the upper part of the stalk may be cut ready for binding; a separate cutting member may be attached to the bars. Instead of using two devices as illustrated to seize and carry the material one such device may be used co-operating with a pegged or a plain roller.
Patent GB-501359-A (GB)
Title: Air purification
IPC: B01D53/04
Filed: 1937-08-27
Abstract: 501,359. Absorbing gases. CONSOLIDATED AIR CONDITIONING CORPORATION. Aug. 27, 1937, No. 23494. Convention date, Sept. 3, 1936. [Class 8 (ii)] [Also in Groups VI and III] An apparatus for removing odorous gases from ventilating air comprises a cell-carrying plate M mounted aslant across a duct D, and having circular openings y upon which are mounted hollow cylindrical cells C<1>. Each cell comprises permeable inner and outer walls 31, 32 retaining an annular bed of granular adsorbent material of less than one inch in thickness, the height of the cells being such as to afford an adsorbent bed area many times as great as the cross sectional area of the duct.
Patent GB-886289-A (GB)
Title: A gas fuelled cigarette lighter
IPC: F23Q2/16
Filed: 1957-07-25
Abstract: 886,289. Liquified gaseous fuelled lighters. KOLLISCH, J., and KOLLISCH, B., [trading as KOLLISCH GEB.]. July 25, 1957 [July 25, 1956], No. 23627/57. Class 75(3) In a liquified gaseous fuel lighter in which a jet of gas is ignited on raising a pivoted snuffler cap the jet is controlled by a lever linked with the cap and with an apertured spring lever in such a manner that when the cap is raised a certain distance above the jet nozzle the apertured spring lever permits a valve to be gradually moved upwards against the spring lever by a spring contained in the valve to open the valve and produce a jet of gas of gradually increasing volume. In the arrangement shown in Fig. 1 depression of the spark producing mechanism 5 against a spring 7 causes a cap 43 covering the burner 4 to be tilted to the open position and at the same time a lever 8 to be rotated about a pivot 44. The lower end 10 of the lever 8 engages an aperture spring lever 11 until after a spark has been produced and then is moved out of engagement with the lever 11 thereby allowing the burner 4 to be lifted by a spring 18 so that the gas issues therefrom and can be ignited. The end of the lever 11 is annular and engages the shoulder 16 formed on the burner 4. The burner 4 is formed as a sleeve and rests on a valve 19 loaded by means of the spring 18. The valve 19, provided with a vertical bore 20 and a transverse bore 21, is slidably mounted in a collar 25 provided on a sleeve 26 and is reduced in diameter at its lower end in order to provide an annular channel 23 between the valve 19 and the inner wall of the collar 25. A rubber disc 24 on the lower end of the valve 19 seals a bore 27 in a dome shaped boss 28 at the bottom of the collar 25 when the valve 19 is in the closed position. The sleeve 26 is screwed on to tube 30 containing a wick 31 which tube 30 is in turn screwed into a sleeve 33. The burner 4 is formed with two downwardly extending lugs 37, 38 which pass through slots 39, 40 in the flange 41 on the sleeve 26 and a circlip is passed over the lugs 37. 38 and beneath the flange 41 to limit the upward movement of the valve 19 and the burner 4. The upper end of the wick 31 is surrounded by an annular rubber member 32.
Patent GB-1194073-A (GB)
Title: Sedimentation prevention
IPC: F04D29/70
Filed: 1968-05-17
Abstract: 1,194,073. Electrolytically precipitating sediments. POLITECHNIKA GDANSKA. May 17, 1968 [May 17, 1967], No. 23644/68. Heading C7B. [Also in Division F1] Sedimentation, e.g. of BaSO 4 , CaCO 3  and CaSO 4 , in a mine draining deep-well pump is prevented by applying a low D. C. voltage (less than 80 volts) to electrolytically precipitate sediments before the water enters the apparatus. Preferably, the P.D. between the cathode, e.g. a steel filter basket 2 fixed to the suction body 1 of the pump, and the anode, e.g. mesh 3 insulated from the body 1 by an insulating member 4, exceeds the precipitation potential of the ions.
Patent GB-1343638-A (GB)
Title: Recovery of silver from electrolytic copper refinery slimes
IPC: C22B3/06
Filed: 1971-04-19
Abstract: 1343638 Recovering silver values AMERICAN METAL CLIMAX Inc 19 April 1971 [14 April 1970] 23829/71 Heading ClA [Also in Division C7] Silver is recovered from electrolytic copper refinery slimes by slurrying the slimes in a HCl solution, and reacting with gaseous Cl 2  to solubilize most of the impurity elements and leave a silver chloride rich residue from which silver may be recovered. In the illustrated embodiment the slimes are slurried in reactor 10 with hydrochloric acid, which is then heated, preferably under reflux, while gaseous chlorine is passed into the slurry. After chlorination the product is filtered and leached, first with acidified boiling water (pH3) and then with hot water to remove lead chloride. The solid residue from these leachings is then cold leached with 2-15N ammonia solution the silver thus being obtained in solution. Ammonia is driven off at up to 100‹ C. (17). The silver chloride thus obtained is filtered (18), slurried in reactor 20 with NaOH and the AgOH thus produced, reduced by the addition of dextrose, acetaldehyde, formaldehyde, or molasses. The solid silver powder then produced is filtered off and may be melted to obtain silver ingots.
Patent GB-459380-A (GB)
Title: Improvements in the construction or arrangement of paddles for use in the propulsion of water craft and other purposes
IPC: B63H1/08
Filed: 1935-08-26
Abstract: 459,380. Paddle-wheels. WARREN, 1. M., The Chestnuts, Moulton, near Newmarket. Aug. 26, 1935, No. 23878. [Class 114] The blades of feathering paddle wheels are provided at their shanks with two projections at right angles located between independent faced cams which are positioned to provide a feathering action as the paddle rotates. The paddle shaft 10 carries an open box hub in the periphery of which are mounted the shanks 15 of the main blades 16. On those shanks are projections carrying respectively rollers 17, 18, and these are disposed between two plates 21, 22 on which are formed cam surfaces 20, 23, for moving the blades alternately into the driving and feathering position. The plates are supported by a sleeve 25. The cams are designed so that the blades enter and leave the water edgewise.
Patent GB-1475795-A (GB)
Title: Steroid 21-thioesters
IPC: C07J31/00
Filed: 1974-05-30
Abstract: 1475795 Steroid 21-thioesters JOUVEINAL SA 30 May 1974 [30 May 1973] 23992/74 Heading C2U The invention comprises compounds of formula (wherein R 1  is alkyl of at least 4 carbon atoms or p-fluorophenyl; R 2  is H or Me; R 3  is OH or oxo; R 4  is H or F ; and R 5  and R 6  are each H or together represent an extra C 1 -C 2  bond); and their preparation from the corresponding 21- iodo steroids by reaction with R 1 COSM (where M is an alkali metal). 9α-Fluoro-16α-methyl- 11#,17α - dihydroxy - 21 - mercaptopregna - 1,4- diene - 3,20 - dione 21 - trimethylacetate (Ia) per se is disclaimed. Anti-inflammatory oral, parenteral, topical and rectal compositions comprise a compound I or Ia and a carrier.
Patent GB-449724-A (GB)
Title: Apparatus for the electrical precipitation of suspended particles from gases
IPC: B03C3/40
Filed: 1935-08-27
Abstract: 449,724. Electrical precipitation apparatus. LODGE-COTTRELL, Ltd., George Street, Parade, Birmingham.-(McKee & Co., A. G.; 2422, Euclid Avenue, Cleveland, Ohio, U.S.A.) Aug. 27, 1935, No. 24004. [Class 39 (i)] Relates to electrical precipitators of the kind in which separating effects of an electrical and mechanical nature are combined. One construction of apparatus comprises a cylindrical discharge electrode 6, Fig. 1, closed at the top and open at the bottom for the entrance of the gases to be cleaned such as blast furnace gas as it emerges from a scrubber 1. The outer side of the electrode has radial ribs 12, Fig. 3, for equalizing and distributing the corona discharge and one or more longitudinally extending slits 10 for the passage of the gas into the treating space. The collecting electrode is a surrounding cylinder 13 with rows of openings 14 or a number of slits circumferentially staggered with relation to the slits in the discharge electrode. The slits in the discharge electrode are bounded by inwardly directed flanges 11. The gas under treatment flows through the slits 10 at high velocity into the treating space where the velocity is reduced and the path of the gas deflected by the opposed blank wall of the collecting electrode. The treated gas escapes through the openings in the collecting electrode to the conduit 30. In the construction of apparatus described a number of treating units B are arranged concentrically about a central unit A and are in communication therewith by way of the passages 15, 17. Flushing devices 31, 31<1> are preferably provided at the upper end of each unit. In another construction of apparatus, Fig. 4, the gas passes through a tubular discharge electrode 38 having a series of annular corona emanating rings 45 disposed in a plane perpendicular to the axis thereof. The collecting electrode is a flat plate 40 extending beyond the radius of the elements 45. 46 is a flushing device. The gas entering the treating area is subjected to the combined action of the electrical field and the action of centrifugal force due to its change of direction and the cleaned gas escapes by the conduit 44. Gas percolating into the annular space between the casing 32 and the electrode 38 is returned by the injector action of the gas entering through the nozzle 35.
Patent GB-506367-A (GB)
Title: Improvements in screw propellers
IPC: B64C11/30
Filed: 1938-08-15
Abstract: 506,367. Screw propellers. THORNTON, A. A. (Reid, M. M.) Aug. 15, 1938, No. 24016. [Class 114] A screw propeller blade is formed with a rigid core member having upper and lower aerofoil surfaces and a flexible sheathing forming a continuation of these surfaces and extending beyond the trailing edge thereof to form trailing surfaces which are flexible transversely to vary the effective pitch. The blade is formed with a core 3 having aerofoil surfaces 5, 6. upon which are applied sheathing plates 3, 4 secured thereto by screws 14. These plates rest against one or other of the core surfaces according to whether high or low pitch position is assumed. In order to modify the pitch a rod 20 is secured by rivets 21 to the ends 9, 10 of the sheathing and is mounted at the outer end 23 in a bearing 24 and at the inner end in a bearing 25. The rod is continued to the hub and engages a finger 26 on a movable plate 33, this plate being carried by bolts. 34 passing through the hub to a cross member 35 which is under adjustable spring restraint 36. For manual alteration of the pitch a lever system 45 operated from the cockpit has a fork 42 adapted to engage and move the plate 33. In a modification the trailing edge is straight, in which case the control rod is straight, and also the sheathing is not extended along the whole of the surface of the core member.
Patent GB-1016108-A (GB)
Title: Improvements in or relating to parametrically excited resonators
IPC: H03K3/47
Filed: 1963-06-17
Abstract: 1,016,108. Parametrically-excited resonators. H. MAEDA. June 17, 1963 [June 27, 1962], No. 24073/63. Heading H3B. In a parametrically excited resonator which comprises bridge arms 1-4, Fig. 1, each formed by a conductive wire coated with a ferromagnetic film, a tuning capacitor connected between the bridge functions a, b, and an exciting A.C. supply of frequency 2f with superimposed D.C. applied to bridge junctions c, d, the bridge arms 1, 2 and 3, 4 are arranged in proximity so as to be mutually coupled. Triangular, rectangular and curved arrangements are depicted in Figs. 3 and 4 and Fig. 5 (not shown). In a modification, Fig. 6 (not shown), the adjacent arms 1, 2 and 3, 4 are twisted together or formed as double coils to increase the degree of inductive coupling. The ferromagnetic film may be permalloy or nickel and the conductive wire copper, " Invar "  (Trade Mark) or molybdenum. A coupling winding may be associated with the bridge arms, Fig. 8 (not shown).
Patent GB-837694-A (GB)
Title: Improvements in or relating to keyboard electric switches
Inventor: PUGH ERNEST JOHN
IPC: H03J5/32
Filed: 1955-08-22
Abstract: 837,694. Keyboard switches. PLESSEY CO. Ltd. Aug. 8, 1956 [Aug. 22, 1955], No. 24107/55. Class 38 (5). In a switch in which the keys are inter connected so that actuation of one key latches that key and releases any other latched key, a card carrying the fixed contacts and a slider carrying the movable contacts are assembled in a frame subsequent to the assembly of the other components of the switch. The keys 6 are pivoted at 7 in a frame 5 and are biased clockwise, Fig. 5, by springs 9. A common latch bar 10 co-operates with a tooth 6b on a depressed key to hold it latched until the end of another key, when actuated, raises the bar against the action of a spring 11 and releases the first key. The slider 13 carries contacts 16 co-operating with contacts 14a on the card 12, and has an inclined slot 15 which can be arranged opposite the upper end of a slot 17a in the frame 3 to permit the slider to be tilted upwards to allow the left-hand stepped-end of card 12 to be placed in the slot. The righthand end of the card is then arranged opposite a hole 17 at that end of the frame and is slid into the position shown. The left-hand end of slider 13 can then be lowered, and the slider moved to the right to enter slot 17. The slider is finally coupled to a key at 18.
Patent GB-506622-A (GB)
Title: Improvements in and relating to tuyeres for shaft furnaces
IPC: C21B7/16
Filed: 1938-08-16
Abstract: 506,622. TuyÞres for shaft furnaces. BRASSERT & CO., Ltd., H. A. (Brassert & Co., H. A.) Aug. 16, 1938, No. 24119. [Classes 51 (i) and 51 (ii)] A water cooled tuyÞre for shaft furnaces has a non-rectilinear bore as indicated in Fig. 3, and the axial thickness of the nose 25 is'greater than the radial thickness of the wall 27. The bore of the nose portion is substantially circular in shape and of constant cross section. Cooling fins 28 extend from the nose portion 25 into the cooling space 23. The thickened portion of the nose may extend around the tuyÚre mouth only over the section liable to be burnt. The internal bore of the tuyÞre may be wholly or in part curved as shown in Fig. 7, A set of such tuyÞres may be arranged around a shaft furnace as shown in Fig. 9. The tuyÞres may be divided into two sets, one set being arranged to discharge at one angle to the radius of the furnace and the other set at another angle. Alternatively, one of the sets may deliver radially.
Patent GB-1509874-A (GB)
Title: Document feed apparatus
IPC: B65H1/18
Filed: 1976-06-10
Abstract: 1509874 Feeding sheets INTERNATIONAL BUSINESS MACHINES CORP 10 June 1976 [23 June 1975] 24138/76 Heading B8R Sheets 5 are seaprated from the top of a pile 1 supported on a vertically movable platform by a separator roller 18 and advanced thereby to the nip between feed rollers 15 and restraining rollers 14, all the rollers being driven from a shaft 13 when a clutch 12 is engaged the roller 19 being carried on pivoted arms 22 to allow it to be moved from and into engagement with the pile, and when the arms 22 swing downwards to a predetermined point, an adjustable member 30 actuates a switch 31 to energize a motor 4 to raise the platform, so as to keep the top of the pile level with the nip 9 between the rollers 15, 14. A photo-electric detector 32 senses a sheet advancing to the nip. When the leading edge is sensed, a solenoid 26 is energized to raise the roller 18 off the pile. When the trailing edge is sensed, the clutch 12 is disengaged to stop the rotation of all the rollers and the solenoid is thereafter de-energized to lower the roller on to the pile, this movement being sufficient to actuate the switch 31.