baber/WOPTO huggingface dataset:
Patent GB-193637-A (GB)
Title: Improvements in sifting machines
IPC: B07B1/52
Filed: 1922-02-01
Abstract: 193,637. Carter, Ltd., J. H., Barradell, L., and Carter, G. Feb. 1, 1922. Reciprocating sieves; rotary sieves.-A series of rotating brushes, scrapers or knockers D are interconnected by linkg E and turnbuckle F and are dispose on opposite sides of the sieving material as shown. As applied to a reciprocating siecs C, Fig. 1, actuated by a crank B and connecting rod A and mounted on rollers P, the brushes are connected by a link G to an endless band driven by pulleys N by which they are traversed to and fro over the sieve. As applied to a rotary sieve P, Fig. III, the brushes remain under the influence of their own weight at the lowest part of the sieve during its rotation.
Patent GB-977174-A (GB)
Title: Improvements in or relating to radial flow pumps
IPC: F04D29/12
Filed: 1962-01-25
Abstract: 977,174. Mechanical seals. K. J. HEINICKE. Jan. 25, 1962, No. 2918/62. Heading F2B. [Also in Division Fl] In a radial-flow pump with a bellows-like sealing element seated on and rotating with a shaft which drives the impeller and is led into an impeller housing through a partition, the sealing element, by reason of its own axial resiliency, is supported at one end against a flat, radially extending boundary surface of the impeller and at the other end against a non- metallic sealing body mounted on the partition, against which sealing body the sealing element slides. In the pump shown in Fig. 3 a sealing member 48, Figs 3 and 8, of, say, polytetrafluoroethylene extends between the impeller and a stationary sealing ring 26, the right-hand portion 50<SP>1</SP> of its bore fitting snugly on the sleeve 36. The sealing member 48 is made resilient by the provision of a bellows-like convolution 53. Sealing ring 26 is of ceramic, sintered carbon or polished glass and is carried by a sealing ring 25 of plastics material which in turn is carried by a cup-like portion 24 of the partition 14. A sealing ring 54 is compressed between the sleeve 36 and a conical slinger ring 55 on the shaft 12. Water droplets leaking through the seals are thrown out by the slinger ring 55 and are discharged through ventilation holes 56.
Patent GB-680106-A (GB)
Title: Improvements relating to belt grinding or polishing machines
Inventor: ROSENTHAL ERWIN WILHELM SIGMUN
IPC: B24B21/00
Filed: 1949-02-03
Abstract: 680,106. Belt abrasive machines. MORRIS, Ltd., B. O. Feb. 3, 1950 [Feb. 3, 1949], No. 2941/49. Class 60. A grinding or polishing machine of the backstand type employing an endless belt 30 comprises a supporting stand carrying upper and lower rollers 3, 12 mounted for rotation about horizontal and parallel, or approximately parallel, axes which are spaced vertically apart and so positioned that the vertical spacing is relatively great compared with any horizontal spacing, the mounting of one of the rollers being adjustable to permit its rotational axis to be tilted into and out of exact parallelism with that of the other roller to obtain correct tracking of the belt. As shown in Figs. 1 and 2, the back-stand is in the form of a column 11 on a pedestal 13, the roller 3 being carried from a clamp 19 adjustable along the column. The roller 3 is carried on a bracket 20 which is pivoted to the clamp 13 on a vertical axis lying in a plane parallel to, and midway between, the end faces of the rollers 3, 12. Adjustment of the bracket 20 is effected by a rod 24 rotatably mounted in a lug 27 on the clamp and in screw-threaded engagement with a member 25 journalled in the bracket 20; a collar 28 on the rod 24 limits axial movement of the rod 24 in one direction, and a compression spring 29 is disposed between the lug 27 and member 25. At least one of the two rollers, and preferably the roller 12, is movable so as to adjust the tension of the belt. As shown, the roller 12 is supported on a lever 32 which is pivoted to the pedestal and connected to a bar 33; this bar is provided with a series of notches 35 for engaging a peg 36 on the column, and a guard rail 37 limits upward movement of the bar when released from the peg. Each of the rollers 3, 12 may be mounted so as to be adjustable axially, Fig. 3 (not shown). In use, the belt 30 passes over a driving roller 15 mounted on one of the spindles of a twin-spindle grinding machine 17. The Provisional Specification describes also the pivotal mounting of the lower roller as being spring-loaded to provide adjustable belt-tensioning means. Specification 680,107 is referred to.
Patent GB-639434-A (GB)
Title: Method of reactivating finely divided catalyst
IPC: B01J38/00
Filed: 1948-02-02
Abstract: Finely-divided catalyst fouled with carbonaceous deposits is regenerated by mixing with cooled regenerated catalyst and treating with a gas containing free oxygen under conditions to burn off the carbonaceous deposit.  In an example, a silica-alumina cracking catalyst is continuously fed to a rotary kiln which has internal projections to agitate the powdered catalyst during regeneration.
Patent GB-980144-A (GB)
Title: Automatic tracking control for magnetic reading head
IPC: G11B5/58
Filed: 1963-01-24
Abstract: 980,144. Automatic alignment control systems. SPERRY RAND CORPORATION. Jan. 24, 1963 [Feb. 5,1962], No. 2988/63. Heading G3R. [Also in Division G5] A method for correcting non-alignment of a sensing head with respect to a magnetic information recording track, wherein a plurality of guidance signal sequences are recorded in individual tracks near the information track, comprises sensing the signals in the guidance tracks, comparing the signals, and adjusting the position of the head in accordance with the relative characteristics of the guidance signals. The recording surface 100 shown in Fig. 1 comprises four information tracks 102,104,106 and 108 and five guidance tracks 110, 112, 114, 116, 118. The tracks 110, 114, and 118 comprise a pattern of dots, e.g. bursts of 10 cycles of a 1.4 mc/s frequency, whilst tracks 112 and 116 comprise a pattern of dashes, e.g. bursts of 30 cycles of the same 1. 4 mc/s frequency. The output from the head HD1 passes to a filter 133 which separates the information signal and passes the guidance signal through an amplifier to a transformer 134. The secondary of transformer 134 is connected to a full wave rectifier, a filter, a D.C. restorer unit 160, and a filter, the output of which passes to a differential servo 122 which controls the lateral position of the head. If the head is central, the input to transformer 134 will be a sine wave of constant amplitude and the output on line 190 will be zero. If the head deviates to one side the sine wave input to transformer 134 will be modulated in amplitude, being larger during the dot intervals or the dash intervals according to the sense of the deviation; the output on line 190 is then a positive or negative voltage depending on the sense of the deviation. A unit 126, which may be an instruction register, provides a voltage to servo 122 to select the desired information channel and connects line 190 to terminal 192 or 194 according to whether the channel is odd or even, since the guidance tracks are oppositely orientated for odd and even channels. In a modification, Fig. 3 (not shown), the recording surface comprises a pair of adjacent guidance tracks on one side of a group of five information channels, then a further pair of guidance tracks and a further group of information channels. The head assembly includes a track sensing head and five information sensing heads, the output of the track sensing head being fed directly to amplifier 131. The track sensing head may be a single head reading both guidance tracks or may be a pair of heads each reading one guidance track.
Patent GB-113339-A (GB)
Title: Improvements in or relating to Coaster Brakes for Cycles and like Vehicles.
Inventor: WADE HAROLD
IPC: B62L5/16
Filed: 1917-02-28
Abstract: 113,339. Wade, H., (Tobin Manufacturing Co.). Feb. 28, 1917. Band. - In a coaster-brake mechanism for bicycles &c., a pinion 28, rotating with the driving-member 18, gears with racks 35 sliding in a cage 29 in such manner that, in driving, the racks are moved outwards to engage behind lugs 39 or with ratchet teeth provided on the inner surface of the hub, whereas, on back-pedalling, the racks are moved through the cage in the opposite directions so that they engage with, or behind, arms 40, or with a ring of ratchet teeth, upon a brake-operating disk 41. The brake comprises a split member 44 anchored by lugs 52 and expanded into contact with the hub by the preferably elliptical portion 47 of a lever 46, which is actuated by the engagement of a pin 50 upon the disk 41 with the recessed end 49 of the lever. The cage is retained in position by a washer 30 upon the reduced end of the driving-sleeve. Drag springs 54 may be provided upon the arms 40 or member 41 to bear upon the cage.
Patent GB-1087059-A (GB)
Title: Improvements in conveyor systems and means for marking articles
Inventor: CAMPBELL HUGH
IPC: B41F17/24
Filed: 1965-01-22
Abstract: 1,087,059. Printing-machines. HUGH CAMPBELL (LONDON) Ltd. March 8, 1966 [Jan. 22, 1965], No. 3018/65. Heading B6C. Articles are fed from a packaging station by a conveyer 33, Fig. 1, on to a table A of a conveyer system comprising an input section 30, an intermediate section 32 and an output section 31, and thence on to a conveyer 34 leading to a discharge station. While passing along the section 30, the article is printed on one side by two printing-rollers 57, Fig. 3, mounted on pivoted arms and spring-urged towards the articles, the articles contacting rollers 62 on arms 61 on the printing roller axes to rotate the printing rollers. On the section 31, two further rollers 55, Fig. 5, print on opposite sides, and a numbering device 63 comprising two slidable markings (64, 65) also prints on it. Pneumatic devices cause the raising and lowering of tables A-D at the junctions of the various sections, to receive and deliver articles, and operation of the numbering device. The pneumatic devices are controlled by actuators 1, 3, 7, 9, 12, 26 &c. contacted by the articles.
Patent GB-182152-A (GB)
Title: Improvements relating to vehicle wheels having detachable rims
IPC: B60B23/10
Filed: 1921-01-26
Abstract: 182,152. Wagenhorst, J. H. Jan. 26, 1921. Spokes, securing, and adjusting.-Wooden spokes A are secured to a wheel felloe F by being shouldered as shown at B, the shouldered part entering an inwardly pressed aperture in the felloe. The shoulder is curved as shown at C.
Patent GB-1293562-A (GB)
Title: Improvements in or relating to refrigerator cabinets
Inventor: KITSON JOSHUA WILSON
IPC: F25D23/06
Filed: 1969-01-21
Abstract: 1293562 Refrigerator cabinet casings PHILIPS GLOEILAMPENFABRIEKEN NV 21 Jan 1970 [21 Jan 1969] 3273/69 Heading F4H A refrigerator cabinet comprises a plastics foam insulating body which is formed in situ between inner and outer surface layers, in which the outer layer is formed by a single sheet of thin material, e.g. moisture proofed cardboard, which is folded to define three walls of the cabinet, a recess for a refrigerating unit and an air duct. The inner layer is formed by a second folded sheet, the sheets being joined by flanges on the first sheet. Moisture proofing of the outer sheet by laminating a metal or plastics foil thereto, by surface coating or impregnation.
Patent GB-747284-A (GB)
Title: Flow-rate responsive switching-valve for hydraulic circuits
IPC: F15B13/02
Filed: 1954-02-04
Abstract: 747,284. Hydraulic apparatus; regulating fluid flow; valves. GRATZMULLER, J. L. Feb. 4, 1954, [Feb. 7, 1953], No. 3339/54. Classes 69 (2) and 135. A valve for diverting the delivery from a hydraulic pump when the rate of liquid flow is below a predetermined value and suitable for permitting a pump to be started in the unloaded condition comprises a cylinder 1 housing a piston 2 which is urged downwardly by a spring 19 and actuates a valve member 15 controlling an unloading outlet 7 from a chamber 4 to the feed tank of the pump. Liquid delivered by the pump enters the valve at 5 and passes through a restricted passage 8 comprising spaced plates with offset apertures before escaping to the outlet 7 whereby a pressure difference is established across the piston resulting in movement thereof to close the outlet 7 when the predetermined rate of flow is attained, liquid then passing solely to the utilization circuit through an outlet 6. Further upward movement of the piston results in the actuation by an extension 24 of the valve member of a ball valve 9 to open a passage 11, 12 in parallel with the restricted passage. The two passages may alternatively be outside the cylinder and the larger passage may have valve means calibrated to open at a predetermined pressure or arranged to be operated directly by the piston. In a modification the function of the ball 9 is performed by a flange on a sleeve surrounding the valve member 15. The valve may be used in a circuit for charging a hydraulic accumulator by means of a pump which is driven by an electric motor controlled by switches actuated by a pressure measuring device such as is described in Specification 689,539, [Group XIX]. The valve may also be incorporated in apparatus in which a pump driven by an electric motor is controlled by a time switch so as to be started up periodically to operate a jack. When the jack reaches the end of its stroke it interrupts the motor circuit allowing the jack piston to be returned by its load, the return flow of liquid passing to exhaust through the'open valve 15.
Patent GB-116869-A (GB)
Title: Improvements in or relating to Jigging Conveyors and the like.
Inventor: CANDLOT CHARLES
IPC: B65G27/00
Filed: 1918-02-25
Abstract: 116,869. Candlot, C. Feb. 25, 1918 Jigging conveyers.-The driving mechanism of a jigging conveyer comprises a bell-crank lever 4 which is pivotally connected at its centre to the end of a connecting-rod 2 and directly attached by its upper part to the conveyer and by its lower part to a resilient extensible but non-compressible coupling 7. The connecting-rod 2 is actuated by a crank 1 rotated with uniform angular velocity. If the angle of the bell-crank lever 4 is acute, the coupling 7 is compressible but non- extensible.
Patent GB-179256-A (GB)
Title: Improvements in safety locks
IPC: E05B23/00
Filed: 1921-01-27
Abstract: 179,256. Schulz (nÚe Muller), M., Muller, M., and Muller, W. Jan. 27, 1921. Lock mechanism, lever-type; slider-type; master-key; keys.-A lock is constructed so that the bolt is operable in two or more stages by successive operations of a key in one and the same key hole from one side of a door and comprises one or more groups of tumblers movable with the bolt and each having two or more notches or rises. In the form shown in Fig. 1, the bolt a carries with it a series of tumblers b each formed with two key-engaging notches x, y. According to the arrangement of the notches at these two points, the lock is operated by one or by two different single-bitted keys, or by a double-bitted key, as shown at g. Fig. 3 shows a modification having upper and lower groups of double-notched tumblers. If the groupings at x, w, and y, z, are symmetrical crossways, one double-bitted key operates the lock in two stages with a single turn; while if all are different, four bits are necessary, which may be carried upon one or more keys. Separate key-holes are provided for operation of the lock from both sides of the door, each key acting as described to actuate the bolt successively. If there is only one group of tumblers, one key suffices to work from either side, if the arrangement of the notches is reversely symmetrical; otherwise two keys, or a double key, are required. Similar reasoning applies when two groups of tumblers are fitted. Triple-throw locks, with one or two groups of tumblers, and with or without separate key-holes for use from the two sides of the lock are also described. Fig. 10 shows a double-throw bolt operable from either side through independent key-holes g, g<1>. The complexity of the key, or the number and type of keys necessary, may be reduced by the introduction of various kinds and degrees of symmetry in the arrangement of the tumblers.
Patent GB-1042233-A (GB)
Title: Process of refining iron
IPC: C21C5/04
Filed: 1965-01-26
Abstract: In double-hearth steelmaking process using oxygen or oxygen-enriched air, the carbon monoxide-rich gases evolved during refining in one hearth being used to preheat a fresh charge in the other hearth, and the two hearths being used alternately for refining, the said gases are burnt in the refining hearth and the combustion products discharged through the flue thereof, until such time as patching of the other hearth and charging are complete.  During this time hot air to support combustion may enter through the duct leading from the other hearth, or oxygen-containing gas may be supplied through a nozzle.
Patent GB-1327547-A (GB)
Title: Hydraulic steering system
IPC: B62D5/093
Filed: 1972-07-22
Abstract: 1327547 Power steering DEERE & CO 25 Jan 1972 [25 Jan 1971] 3441/72 Heading B7H In an hydraulic power steering system of the type in which the flow of fluid to the ports 42, 44 of a steering motor 12 is controlled by a steering control valve 32 having a neutral position and two active positions, the valve 32 is returned to its neutral position by a slave motor 84 one end of which is connected to a motor line 40 and the other end of which is connected to a follow-up motor formed by the hollow piston rod 18 of the steering motor 12 and a fixed piston 26. The steering control valve 32 is a three-position spool valve and controls the flow of pressure fluid from a pump 28 to either line 38 or 40 and to a return line 34 to reservoir 30. The valve 32 is actuated by a steering wheel 48 having a stub shaft 50 keyed to a shaft 58 to allow axial movement thereof. The shaft 58 has a threaded portion 74 which passes through a nut 76 and has a pair of collars 70 at its end which engage a link 82 connected to the valve 32. The nut 76 is prevented from rotating by rollers 78 engaging grooves 80 in housing 62 and is connected by a piston-rod 90 to a piston 88 of the slave motor 84. When the steering wheel 48 is turned the shaft 58 is moved axially (the piston 88 and nut 76 remaining stationary) and the valve 32 is moved to one of its active positions in which pressure fluid is fed to port 42 or 44 thus actuating the steering motor 12. Movement of the piston-rod 18 then causes fluid to flow into or out of the hollow cylinder 22 formed in the rod, the cylinder 22 being connected by line 94 to port 96 in the slave motor 84. This causes the piston 88 to move to the left or right to return the valve 32 to its neutral condition. Thus the cylinder 22 acts as a follow-up cylinder and the motor 12 is actuated only while the steering wheel 48 is being turned. Fluid is returned to the reservoir 30 via a pilot operated valve 36 which is opened only when valve 32 is in either of its active positions.
Patent GB-468713-A (GB)
Title: Improvements in and relating to braking systems
IPC: B66D5/26
Filed: 1936-02-05
Abstract: 468,713. Fluid - pressure brakes. BRITISH THOMSON-HOUSTON CO., Ltd., GIVEN, R. D., PETCH, T. H., and CROFTS, J. W. Feb. 5, 1936, No. 3508. [Class 103 (i)] In a braking system for winding-engines, lifts, &c. of the kind in which the brake lever 2 is operated by a falling weight 11 normally held in an inoperative position, in order to permit the applied pressure of the brakes to be varied without the weight 11 being simultaneously raised or lowered a fluid-pressure transmission is interposed between the weight 11 and the operating lever 2, and auxiliary means are provided for varying the pressure in such transmission. In the arrangement shown, the auxiliary means comprises a spring-loaded pressure-relieving valve 24, which works in a chamber 19 connected by a pipe 20 to the transmission pipe 9 and is controlled by an inertia governor 31 driven from the brake drum shaft through an auxiliary shaft 32. Thus, if the rate of deceleration is too rapid, the valve 24 is raised and the operative pressure in the pipe 9 suitably diminished. Normally, the brakes are retained in the released position by admitting fluid pressure to the under side' of the piston 5 of the brake engine 3 via admission pipe 6, valve cylinder 7 and pipe 8, the valve 16 in the cylinder 7 being controlled by a solenoid 17. When the brakes are to be applied, the valve 16 is displaced, and the space below the piston relieved of pressure and placed in communication via pipes 8, 18 with a fluid supply reservoir 33; the weight 11 operating in conjunction with a piston 15 in a cylinder 10 then applies the brakes. A pump 34 maintains a sufficiency of fluid in the transmission system, but in the event of a deficiency arising which would vitiate the action of the weight 11, the brake lever 2 is operated directly by an auxiliary link 29 having a pin-and-slot connection 30 with the weight lever 12. The pressure in the pipe 9 may be additionally controlled by an adjustable throttling valve 35.
Patent GB-1044116-A (GB)
Title: Improvements in or relating to electrolytically etched aluminum foil
IPC: C25F3/04
Filed: 1965-01-27
Abstract: An etched aluminium foil for an electrolytic capacitor, having a surface configuration comprising terraced levels with rounded base blocks therein exhibiting swirling lines forming together a helix, is made by electrolytically etching aluminium foil of 99.99% purity for 1 to 15 minutes at a current density of .39 to 9.36 amp/sq.in.and a temperature of 90 to 100 DEG C.  The electrolyte specified is 10% NaCl solution.
Patent GB-1453322-A (GB)
Title: Apparatus for cleaning the blanket cylinder of an offset printer
IPC: B41F35/06
Filed: 1974-01-25
Abstract: 1453322 Printing machines PITNEYBOWES Inc 25 Jan 1974 [26 Jan 1973] 03641/74 Heading B6C Apparatus for washing the blanket cylinder 10 of an offset press which comprises an elongate solvent reservoir 16, a scrub roller 44 having a solvent-absorbent surface supported so as to be partially immersed in the reservoir 16, means to enable the scrub roller to be brought into contact with the blanket, and to drive the scrub roller, an elongated wiper 122, means for positioning this wiper against the blanket, and a vacuum header 106 adjacent the wiper to remove solvent. The scrub roller is preferably driven in contra-rotation to the blanket cylinder. A squeegee roller may also be applied to the scrub roller.