baber/WOPTO huggingface dataset:
Patent GB-531254-A (GB)
Title: Improvements in and relating to centrifugal air and like compressors
IPC: F04D29/44
Filed: 1939-06-21
Abstract: 531,254. Centrifuge compressors. BREVETS AERO-MECANIQUES SOC, ANON. June 21, 1939, No. 18095. Convention date, May 17. [Class 110 (i)] In a centrifugal air &c. compressor comprising radial rotor blades 2 and fixed guide blades 3, the latter are of such a form that at any section thereof, in a plane at right angles to the axis of rotation and through the blade, the portion of the neutral line, such as C-C, D-D, which comes at or towards the leading edge is substantially tangential to the direction of the air &c. stream issuing from the blades 2 at this particular section. The blades 3 are streamlined in longitudinal section and are curved in transverse section, Fig. 6, the curvature increasing from the leading edge towards the rear edge. The pressures of the air at various points across the delivery edges of the rotor blades is ascertained by means of a small apertured tube slidable across the edges of the blades and connected to an external manometer.
Patent GB-693203-A (GB)
Title: Machine for shovelling, sorting and sacking bulk material such as coal
IPC: B65B1/32
Filed: 1951-07-31
Abstract: 693,203. Weighing - apparatus. HUCHER, J. L. A. July 31, 1951 [Aug. 2, 1950], No. 18110/51. Class 143 [Also in Groups XXX, XXXI and XXXII]. In apparatus for shovelling and elevating bulk material such as coal the material is passed over screens and to automatic weighing and sacking apparatus. As shown in Fig. 1, material is conveyed by a shovel 48 to buckets on endless conveyer chains 58 to a screening device 92 consisting of spaced superimposed coarse and fine meshes which separate the fine particles which fall into a container 106 from the remainder which is either conveyed to a hopper 98 or further subdivided to a hopper 104, the material in the hopper 98 and 104 being automatically weighed and sacked. The weighing apparatus comprises two beams 113 with counterweight 112 and lower beams 114 pivoted at 115 to the framework whereby the weighing machine is maintained perpendicular to the chassis. The vehicle is driven by a motor which also operates a winch and cable 53 to rotate the elevator about the shaft- 40. The chains are driven from an auxiliary motor 77 and the screens are vibrated thereby. The elevator has rollers 57 which contact an abutment 37. The chassis is levelled when on a slope or uneven ground by a screw 10 operated by a handwheel 17 acting through a spring having a roller 8 running in guides 9 at one end and pivoted to the chassis at the other end.
Patent GB-979054-A (GB)
Title: Improvements in or relating to electrical capacitors
Inventor: FITCH RICHARD ANTHONY
IPC: H01G4/32
Filed: 1961-05-18
Abstract: 979,054. Capacitors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 14, 1962 [May 18, 1961], No. 18139/61. Heading H1M.  In an electrical capacitor which comprises conductor and insulator foils and has tab connections extending into the capacitor, the portion of each tab connection in contact with a conductor foil comprises a peripheral zone having a reduced mass per unit area as compared with the remainder of the portion to allow the zone to move with the conductor foil under an applied impulsive force arising during discharge of the capacitor, so that burning or tearing of the conductor foil during discharge is substantially prevented. This zone is provided by means of a thin foil 6 or 7 located between a relatively thick tab connection A or O and a conductor foil 1 or 2. There may in fact be a plurality of successively smaller thin foils between the conductor foil and the tab connection.
Patent GB-476265-A (GB)
Title: Improvements in or relating to manufacture of armour plate
IPC: C21D9/42
Filed: 1936-06-30
Abstract: 476,265. Heat - treating; annealing. MILLER, G. L. June 30, 1936, No. 18154. Convention date, May 28. [Class 72] [Also in Group XXII] Armour plate is made by securing two steel plates back-to-back with an intermediate layer of carbon resistant plastic, subjecting the plates to a carburizing agent to cause the formation of an outer case 8 and an inner soft core 7, and separating and trimming the edges of the plates. Each plate is heated and quenched in oil which is agitated to prevent soft spots due to gas or steam pockets, then reheated and partially quenched. During further cooling it is passed through a roller leveller to remove the internal strain and to give the plate the shape shown in Fig. 4. When the plate is completely cooled it assumes the shape shown in Fig. 5. The plate is then passed through a reciprocating bender with die which is moved over the plate to place the soft side of the plate in compression and to straighten it. A single plate may be made by securing it to a dummy.
Patent GB-186706-A (GB)
Title: A changeable advertising device
IPC: G09F11/06
Filed: 1921-07-05
Abstract: 186,706. Motter, G. J. July 5, 1921. Plates and the like, travelling.-A device for displaying changing advertisements comprises internally illuminated sign members F, which are brought in turn to an onening C in a casing A. The members F are carried in an upright position in grooves 18 in an intermittently-rotated disc 17, Fig. 3, and are slid in turn, while the disc 17 is stationary, on to a platform 5 having a vertical guide wall 8. Sufficient members F are carried to fill half the grooves in the disc 17, and the member being pushed to the opening C forces the one being exhibited to the empty groove G lying opposite. The mechanism comprises a motor 60 driving a shaft 55 carrying a crank 53 which reciprocates a cross-head 44 by means of a connecting-rod 49. The cross-head 44 carries a pusher 45, which engages the member F brought parallel to the opening C, and a roller 47 which bears on an arm 37 fixed on an oscillating crank-shaft 31. On the crank 30 of the shaft 31 is pivoted a rod 22 sliding through a swivelling sleeve 24 and carrying at its free end a spring-pressed pawl 20 which engages notches 19 in the rim of the disc 17. A spring 28 urges the pawl 20 and the arm 37 to the left. In operation, while a member F is being passed on to the platform 5 by the pusher 45, the pawl 20 moves in the same direction to engage the next notch 19. The member F remains displayed at the opening C while the pusher 45 returns and the pawl 20 pulls the disc 17 round through the space of one slot. Owing to the transference by rotation of the members F back into operative position, each side of each member is displayed alternately. The members are provided with advertising &c. placards held by clips 80 on each side, and covered by transparent sheets 78, 79. An end wall of the member F is removable. The lamp 67 in the member F is illuminated when in display position by contacts 9, 10 on the platform 5. Fixed side panels D, E, Fig. 1, and a top hinged plate 91 for manipulation of the members F, are provided.
Patent GB-145782-A (GB)
Title: Improved method of sealing vertical retorts and coke-oven chambers
IPC: C10B25/04
Filed: 1920-07-02
Abstract: 145,782. Collin Akt.-Ges. zur Verwertung von Brennstotffen und Metallen, F. J. April 28, 1919, [Convention date]. Retorts; coke ovens. - Vertical retorts and coke ovens are sealed at the lower end with granular coke. The coke is contained in a dish b and is continuously moistened by a water-pipe f. The cover e is also sealed with coke, and after discharging the retort the cover is raised to allow the coke to fall into the dish.
Patent GB-959620-A (GB)
Title: Improvements in or relating to electric circuits for supplying a substantially constant current to a load
Inventor: CLARKE JOHN PHILIP
IPC: G05F1/44
Filed: 1962-05-11
Abstract: 959,620. Automatic control of electric current. GENERAL ELECTRIC CO. Ltd. May 3, 1963 [May 11, 1962], No. 18231/62. Heading G3R. In an automatic current control arrangement the output of an oscillator is fed through a frequency-sensitive network and a rectifier to a load and the frequency of the oscillator is varied so as to maintain the load current constant. As shown, the output of a multivibrator 3, comprising transistors 13, 14, is fed via a filter 4 to the input 27 of a power amplifier 5, comprising a driver and phase-splitter transistor 30 and push-pull connected transistors 31. The output of the power amplifier 5 is rectified by a full-wave rectifier 34, smoothed by capacitors 35, 36 and resistors 37-39 and fed to a load across output lines 11, +. The voltage across the resistor 38, representative of the load current, is fed through lines 40, 41 to a control amplifier, comprising transistors 40, 45, the input of which across a resistor 19 varies the bias to the multivibrator so varying the output frequency so as to tend to maintain the load current constant. The voltage across the resistor 39 is applied to an alarm circuit 42. When two similar arrangements are connected in series to a common load the multivibrator centre-frequencies differ to avoid low-frequency beats and the performance of one arrangement is degraded by a shunt resistor.
Patent GB-183691-A (GB)
Title: Improvements in and relating to methods of making rotor elements for elastic fluid turbines
IPC: F01D5/04
Filed: 1921-07-06
Abstract: 183,691. British Thomson - Houston Co., Ltd., (General Electric Co.). July 6, 1921. Blades.-Rotor blade-rings of the kind described in Specification 11918/07, are built up of blades 14 fitting into spaced notches in mounting- rings 10, which are first fixed in grooves 13 in supporting-rings 12; the rings and blades being united by fusion of metal, preferably by the method described in Specification 158,565. The rotor element A - - D is attached to the rotor by an expansion ring 17. The blades may flare from inlet to exit, in which case they are formed from strips of material, Fig. 4, by notching as shown at 22, 23 and then cutting along the lines x, y in turn. The supporting-rings are wedgeshaped. The invention is applicable to radialflow turbines, and is particularly described in regard to radial-flow turbines, having oppositelyrevolving rotors with axiallyextending interleaving blade-rings.
Patent GB-442195-A (GB)
Title: Improvements in staples
IPC: F16B15/00
Filed: 1935-06-26
Abstract: 442,195. Staples. SORENSON, W. L., 1160, 85th Street, and GOODSTEIN, C. B., 3814, Seagate Avenue, both in Brooklyn, and POSNACK, E. R., 270, Broadway, both in New York, U.S.A. June 26, 1935, No. 18328. Convention date, Sept. 27, 1934. [Class 89 (ii)] A staple is formed of prong members comprising two angular disposed legs 18, 19, with an indented section 16, between them. The two prong members are formed with straight portions 20, 22 and tips 21, 23 bent so that the free ends 26a, 27a are in substantially the same vertical plane as the upper points 28, 29. In operation the staple is driven by a plunger 30 into the work until the intermediate part flattens and contacts with an anvil 32. The anvil is withdrawn after which the staple is completely forced in. During the ensuing clinching operation the legs are given an inward inclination so that the ends 21, 23 approach each other and may either overlap when the staple goes completely through the work, as in Fig. 7, or merely approach when embedded in the work, as in Fig. 8. Specification 428,552 is referred to.
Patent GB-1215834-A (GB)
Title: Improvements in and relating to harrows
IPC: A01B19/06
Filed: 1968-04-18
Abstract: 1,215,834. Harrows. LANDBOUWWERKTUIGEN - EN MACHINEFABRIEK H. VISSERS N.V. 18 April, 1968 [25 April, 1967], No. 18440/68. Heading A1B. A harrow comprises beams 4 carrying tines 5; and attached to each set of tines there is a rubbing plate 8 extending along the length of each beam 4, the plates having teeth 9 to break up clods of soil. These teeth may be rectangular (Fig. 3, not shown), trapezoidal (Fig. 4, not shown) or, as shown, triangular, may be pins, may be bent upwardly and then downwardly, may be formed as indentations in the plate 8 (Figs. 6, 7, not shown), or may lie in the plane of the plate (Fig. 8, not shown). Transverse reciprocating movement is obtained via a power take-off shaft, a disc 13 and a fork-shaped body 14 hinged to a sleeve 2 which has two arms 3, one connected to each of the beams 4. The reciprocating parts are suspended from a panel by levers 6 which are pivoted to the frame and have their arms hinged to the beams.
Patent GB-700331-A (GB)
Title: Improvements in or relating to garment pressing or steaming and pressing machines
IPC: D06F71/36
Filed: 1951-12-18
Abstract: A continuous heterogeneous coating of metallic globules or granules is deposited on a press plate for a garment pressing machine (see Group VIII), the plate being preferably roughened on one or both sides by etching, sand blasting or alloy coating before the molten metal is sprayed on.  The press plate may be of aluminium, "Monel" metal (R.T.M.), or other nonrusting thin sheet metal, and the coating may be of aluminium, bronze brass, stainless steel or "Monel" metal.
Patent GB-477844-A (GB)
Title: Safety means for use in preventing or correcting spinning in aircraft
IPC: B64D27/02
Filed: 1936-07-04
Abstract: 477,844. Controlling aeroplanes. MARTIN, J. July 4, 1936, No. 18618. [Class 4] Means for diverting air on to the rudder of an aeroplane when the latter is at a high angle of incidence comprise flaps mounted in advance of the tail unit and normally folded flush with the fuselage but adjustable to laterally projecting positions. Flaps 2, 2, Fig. 2, are hinged longitudinally at 3 to the fuselage 1 and are normally nested against the surface or accommodated in recesses therein. The flaps are maintained in their inoperative position by cables 10 connected to a cockpit control, for instance a hand lever with pawl and ratchet locking means, and are moved outwardly by spring struts 6 when this control is released, Fig. 4.
Patent GB-402515-A (GB)
Title: Improvements in or relating to advertising or like apparatus
IPC: G09F11/34
Filed: 1932-07-01
Abstract: 402,515. Changing signs. POTTER, E., 3, Staple Inn, High Holborn, London.- (Poliakoff, R. ; 1071, 6th Avenue, New York, U.S.A.) July 1, 1932, No. 18629. [Class 3 (i).] Flexible panels 7 having display matter on both sides and fitted with suspension rods 6 at both ends are transferred from the front to the back of a pack by a continuously rotating roller 8. The action inverts the panel so that it gradually slides down inclined supports 5 to display its other side when it again reaches the front of the pack. The mechanism for raising the panels 7 comprises a pawl 22 on a frame 20 having a projection 21 which is lifted by a pin 15 on the roller 8, the roller having a peg 9, which takes under the rod 6 and carries the panel round the roller. A finger 23 pivoted about a spindle 40 falls by gravity against the roller and displaces the rod 6 from the peg 9 and guides the rod beyond the supports 5. The finger 23 is raised from the roller 8 before the following rod 6 on the travelling panel reaches it, by the engagement of the pin 15 with a cam 15<1> on an arm 23<1> rigidly connected through a sleeve 24 with the finger 23, thus conducting this rod 6 on to the supports 5 and inverting the panel. To allow the roller 8 to make several ineffective rotations, and thus ensure a relatively quick transfer of the panel compared with the time of display, the pin 15 is mounted on a pinion 12 meshing with a pinion 13 carrying a cross-shaped cam 14. Both pinions 12, 13 are mounted on the roller 8, and the pinion 13 is registered in position by a spring 17. The cam 14 is advanced step-by-step at each rotation of the roller 8 by a pawl 18 fixed to a spindle 19, thus moving the pin 15 out of the path of the projection 21 for three revolutions of the roller 8 out of four. All these mechanisms are duplicated at the other end of the roller to manipulate the rods 6 evenly. A spring-pressed roll, which together with the roller 8 may be rubber-covered, bears on the panel 7 to give the latter frictional engagement with the roller 8 and after the pins 9 have disconnected. The pawl 18 may be put out of action periodically to display a particular sheet for a longer time by a pivoted cam 38 which bears against an arm 44 fast on the spindle 19. The arm 44 is forced out to render the pawl 18 ineffective by a pin 41 rotated by gearing from the roller shaft, and a gravity lever 37 which holds it out is disengaged after a period by cams 36a, 36b on an interchangeable disc 36.
Patent GB-256943-A (GB)
Title: Improvements in electric motor control systems
IPC: H02P3/18
Filed: 1926-07-26
Abstract: 256,943. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Sipher, E. F., and Drake, C. W.). Aug. 13, 1925, [Convention date]. Electric braking.-A synchronous motor having a primary winding 1 and a separately excited secondary winding 6 which can be short-circuited for starting, is rheostatically braked by changing the connections of the prmary winding from the upper to the lower contacts of a transfer switch 11, thus cutting off the alternating current supply and bringing the braking resistance 9 into action. In order to energize the secondary if the brake is called upon during the starting period, a relay 25 by the fall of its contact to the lower position effects the closure of a switch 19 which makes the necessary connection to the direct current supply. The invention is applicable to motors driving rubber mills.
Patent GB-902560-A (GB)
Title: Improvements in or relating to combating fungi
IPC: C07F7/22
Filed: 1961-05-24
Abstract: Triphenyl tin sulphides of formula (C6H5)3Sn.Sx.Sn(C6H5)3 where x is 1 to 4 are made by reacting a compound of formula (C6H5)3Sn.X where X is an inorganic or organic acid radical with a sulphide, disulphide or polysulphide of an alkali or alkaline earth metal or ammonium. The chloride and acetate are preferred.  The invention also comprises as new compounds bis(triphenyl tin) polysulphides of the above formula where x is 2, 3 or 4.  They may be used for combating moulds on living plants (see Group VI).ALSO:Compositions for combating live moulds on plants contain as active ingredient, a triphenyltin compound of formula <FORM:0902560/VI/1> where x is 1 to 4, and if desired adjuvants such as surface-active substances, dispersion agents and/or adhesives.  The composition may be a dust, containing finely powdered kieselguhr or dolomite, a wettable powder containing a wetting agent such as a fatty alcohol sulphate or an alkylaryl sulphonate and an inert carrier such as kaolin, chalk, pipeclay or colloidal silicic acid, a liquid concentrate containing an emulsifying agent and a solvent such as cyclohexanone, or a seed disinfectant containing a carrier and an adhesive.
Patent GB-334640-A (GB)
Title: Gas detector
IPC: G01N25/36
Filed: 1929-06-19
Abstract: 334,640. Espes, M. H. June 19, 1929. Gas analysis.-A gas-detecting apparatus of the kind employing the differential expansion of two members, one of which carries spongy platinum pellets, comprises two wires A, B, the wire A carrying the pellets N. The wires are attached at one end to adjusting screws C, D and at the other end, through springs E, F, to switch members G, H carrying contacts G<1>. H<1> which are normally separated. Expansion of the wire A allows the contacts to touch, closing a circuit containing a battery K<3> alarm bell K<1>, and signal lamp K<2>. A switch L, L<1> is included in the circuit. The wires and switch elements and, if desired, the alarm circuit, are enclosed in a casing O which has a window O<1> of wire gauze, or small holes 0<2>. Specifications 22303/10 and 12910/11, [both in Class 85, Mining &c.], are referred to.
Patent GB-770615-A (GB)
Title: Improvements in or relating to centrifugal strainer separators
IPC: B04B15/12
Filed: 1955-06-29
Abstract: 770,615. Centrifugal strainer-separators. WESTERN STATES MACHINE CO. June 29, 1955 [July 6, 1954], No. 18855/55. Class 46. In a centrifuge in which a rotatable basket for separating liquids from solids, a sprayer for delivering washing fluid on to the contents of the basket and a discharge mechanism are normally operated in sequence by an automatic timer, a fall in the pressure of the washing fluid below a predetermined value actuates an electric switch in a circuit of the timer to prevent the discharge mechanism from operating. Washing water supplied through a pipe system 20 is sprayed on to the contents of a basket strainer 13 by nozzles 18 on a pipe 17. The pipe system 20 includes a connection 27 leading to a pressure operated switch PSW in the discharge timer circuit, opening of the switch on a fall of pressure isolating the discharge timer from its power supply. A branch pipe 24 from the pipe 17 sprays a scraper 15, such as that described in Specification 688,707 [Group II] to remove material adhering thereto after its scraping action. The whole washing operation is timed by a solenoid, valve WWSY which controls the supply of compressed air which actuates a valve 21 in the pipe system 20 as described in Specification 688,712 [Group II].
Patent GB-975874-A (GB)
Title: A process for the manufacture of aminomethylene-malononitrile
IPC: C07C209/68
Filed: 1963-05-14
Abstract: Aminomethylene-malononitrile is prepared by reacting formamide with malononitrile in the presence of dimethyl sulphate.  The reaction is preferably carried out in an inert solvent, e.g. hydrocarbons and ethers, at temperatures from about 40 DEG C. to 70 DEG C. using a molar ratio of formamide to both the dimethyl sulphate and the malononitrile of at least 2:1.  The reaction mixture after the reaction has finished is preferably treated with ammonia.  The ammonia can be added in any form; for example, a methanolic ammonia solution or pure liquid ammonia can be added. Alternatively, any solvents present are removed, the residue dissolved in another solvent and gaseous ammonia passed into the resulting solution.
Patent GB-500545-A (GB)
Title: Improvements in and relating to electrical precipitators
IPC: B03C3/15
Filed: 1937-07-08
Abstract: 500,545. Electrical precipitation apparatus. HOLMES & CO., Ltd., W. C., LAKE, E. M., and HOLMES, F. B. July 8, 1937, No. 18974. [Class 39 (i)] The treating chamber is of annular form and constituted by inner and outer cylindrical members 6, 1 forming the collecting electrodes between which the discharge electrodes 7 are concentrically arranged, and the gas under treatment is admitted tangentially at the bottom inlet 2 and passes upwardly in a helical path to the outlet for clean gas at 3. One or both of the collecting electrodes is provided with a helical ridge 5. The discharge electrodes are supported by a rod 10 and bell-shaped insulator 11 in a chamber 12 at the top of the treating chamber, and a tube 13 is provided about the rod 10 to function as a collecting electrode and prevent entrance of dust to the insulator chamber. The high tension is supplied from a transformer 15 and a rectifier, preferably of the valve type which operates at an ambient temperature of 25 to 45‹ C., and is enclosed in a chamber 16, the temperature of which is thermostatically controlled. The supply of current to the transformer is from a control device 20 located at the bottom of the treating chamber. In the construction shown, the bottom of the treating chamber has a delivery tube 21 and a liquid seal consisting of the receiver 22 and outlet 23 for the separation of suspended liquid from the gas.
Patent GB-959177-A (GB)
Title: Spoon bait
IPC: A01K85/10
Filed: 1963-05-14
Abstract: 959,177. Fishing lures. ETABLISSEMENTS RUBLEX. May 14, 1963 [June 7, 1962], No. 19103/63. Heading A1A. A spoon bait comprises a shank 2 folded back to form a loop 16 for the hook 18 and provided with a short transversely bent end 2c which engages over the top end of a weight 9 and into a transverse bore 8, in a plastic cap 6 having a bore 7 through which the shank passes with slight clearance. The spoon 1 is pivotally carried by a strap 3 fitted over a ball 5 resting on the top of the cap 6.