baber/WOPTO huggingface dataset:
Patent GB-586074-A (GB)
Title: Improvements in hydraulic classifiers
IPC: B03B5/62
Filed: 1944-10-24
Abstract: 586,074. Upward current classifiers. STOKES, R. O. Oct. 24, 1944, No. 20648. [Class 82 (ii)] [Also in Group XXXV] The opening of the discharge valve in a hindered or free settling type of classifier having a continuous discharge is adjusted by a reversible electric motor coupled to the valve and which has a reversing switch actuated in response to the relative movement of elements dependent in position on the degree of opening of the discharge valve and the effective head of the teetering or settled solids respectively. As shown, applied to a classifier as described in Specification 509,020, the head 18 of a rod 7 which moves in response to the operation of a diaphragm (not shown), subject to a pressure dependent on the head of the teetering solids, has an insulating fibre lever 19 pivoted by a pin 20 and carrying contacts 22 and 23 coupled to it by a pin 21. Two brass strips 26 having clearance holes for the pins 20 and carrying contact strips 29 are pivoted by a pin 27 to a base 13 and coupled to the head 18 by the pin 21. Vertical rods 9 journalled in the casing 3 and operating the discharge valve through the cradle 8 carry the base 13 and are fastened together by a cross bar 12 which has a tapped hole engaging a shaft 14 driven by a reversible motor 16. In operation, the rod 7 on rising, due to increased density of the teetering fluid, lifts the bar 29 and lowers the contact 22 starting the motor in the direction to open the valve. This also raises the switch base 13 and breaks the motor circuit. Reduced density of the teetering fluid causes similar action in the opposite direction.
Patent GB-500525-A (GB)
Title: Improvements relating to buckle fasteners
IPC: A62B18/08
Filed: 1938-07-13
Abstract: 500,525. Attaching buckles to gasmasks. UNITED-CARR FASTENER CORPORATION. July 13, 1938, No. 20782. Convention date, Aug. 6, 1937. [Class 43] A plate 6 to which a buckle 8 is secured is attached to a gasmask by means of a a bridge-piece 3 integral with the rubber body portion 1, and a metal clamping member 5 upon which the plate is pivotally mounted. The lower wall 11 of the member 5 is slidden under the bridge-piece 3 and the member is closed by squeezing. The pivotal movement of the plate 6 is limited by the engagement of its edges 16 with a stop 14 on the member 5.
Patent GB-1077853-A (GB)
Title: An improved flushing tank or cistern
Inventor: KENT STANLEY GEORGE
IPC: E03D1/06
Filed: 1963-05-24
Abstract: 1,077,853. Siphon-discharged flushing cisterns. DENT & HELLYER Ltd. May 8, 1964 [May 24, 1963], No. 20786/63. Heading E1C. In a cistern comprising a tank 1, in which is a siphon tube 4 having an inlet leg 3 opening near to the bottom and an outlet leg 4 for connecting to a flush pipe, a motor-driven pump 7 delivers liquid into the opening in the leg 3 to initiate siphonic action for flushing, and is connected to an on-off electric switch 14 for the supply to the motor. The pump and motor may be housed in a liquid-tight compartment in the tank 1, to be submerged therein after recharging, or mounted externally of it, and the pump inlet 8 may draw liquid from the tank 1. The switch 14 may be urged to the open position or may be one opening automatically after a predetermined time of closure. The pump inlet 8 may be closed automatically by a ball 11, (which floats on the liquid above a decided level 17), when the liquid has dropped to a predetermined level 16, the ball 11 being housed in a foraminous cupshaped member 9. Several cisterns each with a pump and motor may be connected to a common electric switch. Further, several cisters may be operated by one pump 7 and motor, with an electric switch 14 to pump liquid into all the siphon tubes.
Patent GB-155800-A (GB)
Title: Improvements in railway and the like signalling systems
IPC: B61L3/12
Filed: 1920-07-12
Abstract: 155,800. Bethenod, J. July 12, 1920. Addition to 148,990. Drawings to Specification. Track apparatus actuating signats on trains.- In a train signalling system of the kind described in the parent Specification, the signals are operated by the inductive reaction between coils on the train and track; the train coil is supplied with high-frequency current and its frequency is varied by the influence of the track coil circuit over which the train passes. The modification of the current may operate a commutator controlling actuating circuits or may cause a variation of mechanical effort. The circuit of the train coil may be tuned to respond to a predetermined frequency. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a track coil movable, for signalling purposes, into the path of influence of the train coil. This subject-matter does not appear in the Specification as accepted.
Patent GB-645009-A (GB)
Title: Improvements in and relating to pneumatic conveyers
IPC: B65G53/00
Filed: 1947-08-01
Abstract: 645,009. Conveying powdered materials. WHITFIELD, J. E. Aug. 1, 1947, No. 20956. Convention date, Dec. 4, 1941. [Class 78 (i)] Means in a pneumatic conveying apparatus whereby the material conveyed may byepass the blower comprises a cylindrical casing 1, Fig. 1; air inlet 18 for conveying the air and material to pockets 11 of the rotating hollow cylindrical member 7; an outlet 19 for conveying the air to the blower after the material has been deposited in the pocket 11; air inlet 20 for conveying the compressed air from the blower to the pockets; air outlet 21 for conveying away the air and material from the pockets; and screen means 16 for effecting the separation of the air from the material. Fig. 1. Inside a fixed portion consisting of pipes 18, 19, 20, 21 formed at the ends of fixed casing 1 rotates a cylinder member 7 on shaft 6. Cylinder member 7 is divided into open-ended pockets 11 by longitudinally-extending spokes 10 and one end of the member 7 is closed by screen 16 integrally secured thereto. The air current carrying material flows from pipe 18 into a pocket 11 of rotating member 7 and passes through screen 16 and out through pipe 19 to the suction end of a blower, thus leaving the material in a pocket 7. The air returns from the pressure end of the blower through pipe 20 and blows out the material from a pocket 11 and conveys it away through pipe 21, the conveyed material thus by-passing the blower. Figs. 3, 4, 8. The fixed casing 22 has end air pipes 25, 28 and side air pipes 27, 30, the latter leading respectively to manifolds 26, 29; and inside the casing rotates rotary cylindrical member 32 on shaft 31. The rotary member 32 is formed with an outer cylinder 33 and is divided into open-ended pockets 41 by vertical longitudinal spokes 34; each spoke being formed as a unit with vertical screens 44 (see Figs. 10, 11) at the side thereof and the space enclosed being divided at intervals by horizontal triangular ribs 42, and each spoke being slidden down as shown to wedge between shaft 31 and outer cylinder 33. Outer holes 36 are formed in the outer cylinder 33 and the space between the outer cylinder 33 and inner longitudinal sectors 38 is divided by horizontal ribs 37 coplanar with the triangular ribs 42 enclosed within each pair of screens. Operation.-Air carrying material enters down pipe 25 and flows into a pocket 41 of the rotary member 32, the material being deposited at the bottom of the pocket and the air escaping through each side screen 44 of the pocket and flowing therefrom out between the triangular ribs 42 and then between the ribs 37 and out through holes 36 into manifold 26 which leads to the suction end of the blower. The material is carried round in pocket 41 and blown out by air from the pressure side of the blower which enters through pipe 30 and carries away the material through pipe 28 to the place where it is wanted. The apparatus may also be used for conveying materials using a liquid medium.
Patent GB-614379-A (GB)
Title: Improvements relating to forming-apparatus for catamenial appliances
IPC: A61F13/20
Filed: 1946-07-13
Abstract: 614,379. Catamenial tampons. McLAUGHLIN, J. R. July 13, 1946. No. 21021. [Class 81 (ii)] [Also in Group VIII] A cutting apparatus which is especially adapted to sever the string connections z between cotton catamenial wads x as they pass from a sewing machine to a forming machine for completing the making of the wads, is constructed so that the operation of the cutter is controlled by passage of the wads through feed rollers. From the sewing-machine the chain of wads passes to a driven corrugated feed roller 40 mounted between side plates C, C<1> provided with guides 11 for the wads, and a plain roller 42 coacting with roller 40 is mounted in arms 44 fixed to a shaft 28 upon which is freely mounted a pulley 25 forming part of a conveying means for feeding the cut wads to a conveyer 12 leading to the forming machine. A belt 26 pulley 24, rising and falling pressing rollers 36 and a tensioning- roller 30 complete the conveying means, and between these and feed rollers 40, 42 the normally stationary cutting rollers 48, 49 are arranged, the roller 49 having a cut-away part to admit passage of the wad x as shown in Fig. 9 and being fitted with a knife 51 held by a clamp 54 to a sectional part 52. When the arms 44 are raised by passage of a wad between the rollers 40, 42 an arm 81, Fig. 6, is moved clockwise to depress a switch which energizes an electromagnet' 64, and this causes clockwise rotation of a lever arm 65 and a clutch 72 is thrown in to cause rotation of the shaft 47 of the cutting roller 48 and its associated roller 49. The wad is flattened while being cut, and the chain is maintained taut by the greater speed of the belt 26. The cut effected is, as shown in Fig. 10, near the end of a wad x. The magnet 64 is maintained in energized condition by an arm 60 freely mounted on shaft 28 but operated by a cam 57 on shaft 47 to maintain the clutch 72 in action until the cutting rollers have completed one revolution when a depressed part of the cam permits a counterclockwise movement of the arm 60.
Patent GB-836842-A (GB)
Title: Process for matting glass
IPC: C03C17/245
Filed: 1957-07-03
Abstract: A glass surface to be rendered matt is coated with a dispersion prepared from at least two oxides of metals and/or silicon and/or boron which have been obtained by thermal decomposition of mixtures of volatile compounds of these elements in the vapour phase and the dispersant is then removed from the surface.  The coated surface may then be heated.  Alternatively, the glass surface may first be heated to its softening point and the dispersion then applied.  Suitable oxides are those of aluminium, titanium, zirconium and silicon and the volatile compounds may be halides; these may be decomposed in the presence of oxidizing water with oxygen, e.g. in a hydrogen air flame at a temperature above 1500 DEG  C.  The dispersant may be water; binding agents such as waterglass, dextrine or agar-agar and fluxing agents such as boron trioxide or lead silicate may be added.  The process may be applied to glass fibres or the surfaces of incandescent lamps.ALSO:Glass fibres to be rendered matt are coated with a dispersion prepared from at least two oxides of metals and/or silicon and/or boron which have been obtained by thermal decomposition of mixtures of volatile compounds of these elements in the vapour phase, and the dispersant is then removed.  The coated surfaces may then be heated.  Alternatively the glass fibres may first be heated to the softening point and the dispersion then applied. Suitable oxides are those of aluminium, titanium, zirconium and silicon and the volatile compounds may be halides; these may be decomposed in the presence of oxidizing gases and preferably also gases which form water with oxygen, e.g. in a hydrogen-air flame at a temperature above 1500 DEG  C.  The dispersant may be water; binding agents such as waterglass, dextrine or agaragar and fluxing agents such as boron trioxide or lead silicate may be added.
Patent GB-1526791-A (GB)
Title: Bobbin and bobbin carrier assembly for braiding machines
IPC: D04C3/38
Filed: 1975-05-19
Abstract: 1526791 Braiding-machines A R POUNDS E V POUNDS E D PATTINSON and P J PATTINSON 24 Sept 1975 [19 May 1975] 21109/75 Heading D1C A bobbin-carrier for a braiding-machine comprises a support structure with a spindle 4 on which are rotatably mounted a bobbin 5 and a ratchet member 1 engageable by a pawl 7 to arrest the bobbin, the bobbin and ratchet member being coupled to rotate together by a slipping, e.g. magnetic, clutch 2, 6 to allow relative rotation in the event of excessive yarn tension.
Patent GB-573919-A (GB)
Title: Improvements in or relating to metal dock gate construction
IPC: B63B9/00
Filed: 1943-12-17
Abstract: 573,919. Dock gates. HEAD, WRIGHTSON, & CO., Ltd., WALKER, F. J., and WRIGHTSON, SIR T. G. Dec. 17, 1943, No. 21228. [Class 68 (ii)] A dock gate is formed from heel and mitre posts and a number of horizontal units extending between them, the posts being formed with machined interfitting joints so that they can be secured together on the site. As shown, the heel post 1 is formed with a flat to which a channel iron 5 is attached, a similar channel iron being attached to the mitre post (not shown). The horizontal units are each formed by a spaced pair of plate girders 6 with their webs 8 horizontal, and with their flanges 9 on one or both sides connected by plates 7, so as in the latter case to form box girders. The flanges 9 are cut away at their ends, and the plates 7 extend beyond the cut-away portions, so forming a tongue and groove connection with the flanges of the channel irons 5 ; the mating portions are machined at the factory so that they may be readily assembled at the site and secured as by welding or riveting. The horizontal units or box girders are spaced by sections of vertical diaphragms 10 secured to them, the gaps between them being subsequently closed by attaching additional plates similar to the plates 7, thus completing the skin of the gate.
Patent GB-586078-A (GB)
Title: Improvements in and connected with hacksaws
IPC: B23D51/14
Filed: 1944-11-30
Abstract: 586,078. Hand saws. CRAWFORD, L. R. J., and WILD,. F. Nov. 30, 1944, No. 21230. [Class 61 (ii)] The tensioning members 8 of a hack-saw blade are carried in circular bushes 6 mounted in bearing brackets 5 fixed to the frame limbs 1, 2 and the bushes 6 are provided with grooves 11 around their periphery coacting with spring- pressed pivoted locking levers 12 for readily adjusting the angular position of the blade.
Patent GB-242025-A (GB)
Title: Improvements relating to planing, moulding and like wood working machines
IPC: B27C1/12
Filed: 1924-09-09
Abstract: 242,025. Oliver Machinery Co., Ltd., and Haigh, W. B. Sept. 9, 1924. Planing; moulding.-The bearings c of the feed rolls a, b, of a planing or like machine are vertically adjustable in guides, the upper rolls a being carried in a. housing f which is itself vertically adjustable by hand-operated worm gear i, whilst it' can be set at a slight angle to the fence 8 by loosening bolts k. In the case of the lower rolls the adjusting screws 5 at the ends of each roll shaft are connected by a chain (not shown). The bottom rolls are driven by a chain 3 and the top rolls by a chain 4 with jockey pulleys m, l, both chains being driven by a pinion on a counter shaft 2 geared to the machine spindle y. This spindle is started by tightening a belt q by rocking a housing t in which the belt pulley r is carried.
Patent GB-1044632-A (GB)
Title: Improvements in and relating to liquid fuel burners
IPC: F23D11/10
Filed: 1963-05-28
Abstract: 1,044,632. Oil burners. R. SMITH. May 25, 1964 [May 28, 1963], No. 21307/63. Heading F4T. Liquid fuel flows along the annular passage between a stem 19 and the bore 18 of a nozzle 2 and its flow is restricted by an orifice plate 24 so that it forms a thin film on the flared end 20 of the stem 19. Air is discharged through the gap between the nozzle 2 and an outer nozzle 3 and atomizes the oil.. The oil is supplied by a connector 16 and passes through an aperture 17 into a tube 5 to which the nozzle 2 is connected. Radial bores 25 connect the bore 18 with the tube 5. Air is supplied by a tube 14 to a casing 1 surrounding the oil tube 5 and passes through bores 26 in the nozzle 2 to the outer nozzle 3. The nozzles are cooled by air from a shroud 32 supplied by a duct 31. The fuel flow passage and the outer nozzle beyond the flared end 20 of the stem 19 may be of elliptical section to provide a wide flat flame. In another embodiment, Fig. 3 (not shown), the stem 32 is tubular and is supplied with air which is discharged into the oil mist.
Patent GB-294487-A (GB)
Title: An improved process for working up materials containing lead, tin, copper and antimony
IPC: C22C3/00
Filed: 1928-07-23
Abstract: 294,487. H³ttenwerk Niedersch÷nweide Akt.-Ges. July 21, 1927, [Convention date]. Alloys. A process for working up materials containing tin, lead, copper, and antimony, comprises liquating a deep layer of the material in a shaft furnace heated from above whereby there is obtained at the bottom first an alloy consisting mainly of tin and lead with small proportions of copper and antimony. The temperature may then be raised to obtain an intermediate alloy which is subsequently added to a fresh charge, while the residue is finally drawn off at a higher temperature.
Patent GB-1394120-A (GB)
Title: Safety valves
IPC: F16K17/04
Filed: 1972-05-08
Abstract: 1394120 Valves BRITISH OXYGEN CO Ltd 8 May 1972 [10 May 1971] 21346/72 Heading F2V A relief valve has a primary piston 21 with a nose 22 received within 0-ring 16 and subjected to inlet pressure acting in opposition to a spring 29 adjusted by nut 28 which also acts as a guide for a stem 26 carrying both the primary piston 21 and a secondary piston 24, the pistons suitably being of P.F.T.E. Increasing inlet pressure shifts the pistons until chamfer 23 on nose 22 moves into the 0-ring to allow flow past the pistons via annulus 20, 25 to vents 19. When the pistons have moved far enough for most of the total pressure drop to occur across piston 24, they are shifted rapidly to afully-open condition. Cap nut 31 locks nut 28 to the housing 10.
Patent GB-1431947-A (GB)
Title: Storage equipment
IPC: B65G1/04
Filed: 1973-05-04
Abstract: 1431947 Storage systems RACK ENG CO 4 May 1973 21442/73 Heading A4T In a storage system comprising uprights 2 supporting shelves 4, 5 each provided with rails 11 on which a load-carrying dolly 15, runs an outrigger 30 can be engaged with notches 4 in the uprights 2 to align rails 44 on the outrigger with the rails 11  to enable the dolly 15 to be pulled on to the outrigger, stops 45 ensuring that the dolly cannot completely leave the rails 11. The outrigger has lifting members 60 which can be engaged with a lifting bar 65 carried by a hoist for lifting the outrigger into position, and carries cleat 51, 52 which engage in vertically spaced notches 4 to hold the outrigger in position. The dolly has a spring biased pen-catch 23 which engages the shelf 5 to prevent movement of the dolly but which can be released by rotation of a cam 73 carried by the outrigger.
Patent GB-1011749-A (GB)
Title: Energization circuits for inductive devices
IPC: H01F7/18
Filed: 1962-06-05
Abstract: 1,011,749. Switching inductive loads. TELETYPE CORPORATION. June 5, 1962 [July 5, 1961], No. 21578/62. Heading H3T. A circuit for energizing an inductor in response to a signal provides a steady potential across the inductor while the current therein is increasing and then holds the current at a steady value when a predetermined magnitude is reached. The invention is described in connection with the selector magnet of a teleprinter which is to be controlled by signals having mark and space periods. In the space period transistor 11 is cut off by the absence of signal on its base, and transistor 15 is thus conducting. Transistor 19 is cut off by the voltage drop across voltage-sensitive resistors 30, 31. Transistor 48 is conducting, while transistor 60 is cut off by the voltage drop across 64. The input circuit of transistor 11 has ohmic resistors 25, 26 and voltage-sensitive resistors 27, 28 which are switchable to cater for different magnitudes and datum levels of the mark signal applied at 23. When a mark signal appears it turns on transistor 11 and cuts off transistor 15 through lead 16, thus reducing the voltage drop across 30. Transistor 19 now conducts and current is able to flow through the inductor 45 via transistors 48 and 19. As soon as this current starts, the base and emitter of transistor 60 go more positive to extents that enable this transistor to conduct; transistor 49 is then cut off since its base potential is maintained first by capacitor 73 and then by clamping diode 74 in conjunction with resistors 71 and 72. Thus the rising current through the inductor is carried by transistor 60 instead of 48. When, however, the emitter of 50 becomes sufficiently positive transistor 48 will conduct again and cut off 60, the inductor current now being through transistor 48 and high resistance 54. The circuit is stabilized during the period of rising inductor current by positive feedback through diode 57 which holds transistor 15 cut off. At the end of the "mark" period, the input signal cuts off transistor 11 and thus turns on transistor 15. The collector voltage of 15 is transferred via diode 65 to the base of transistor 19 and cuts it off (together with diode 55), thus opening the path of current through the inductor. The back E.M.F. across the inductor causes diodes 55 and 66 to conduct and drives the collector of 19 and the base of 15 more negative via diode 57, ensuring that the latter is held conducting. During this changeover period transistor 48 remains conducting and transistor 60 remains cut off. NPN transistors can be used instead of PNP. The voltage-sensitive resistors 27, 28, 30, 31 act as current-limiters for surges and provide a fixed voltage drop; they comprise PN and NP junctions in parallel. Specification 556,700 is referred to.