baber/WOPTO huggingface dataset:
Patent GB-470452-A (GB)
Title: Improvements in or relating to coating iron or steel structures with metals
IPC: C23C22/22
Filed: 1935-12-11
Abstract: The Specification comprises a plurality of improvements in or modifications of the process claimed in the parent Specification, according to which an iron or steel structure is treated at ordinary atmospheric temperature with a substantially neutral non-oxidizing liquid or paste containing a compound of zinc or other metal less noble than iron but not less noble than magnesium and also a salt of another metal which salt is capable of forming a complex salt with iron, the treatment resulting in the formation of a coating of the metal less noble than iron but not less noble than magnesium. According to the present Specification an alkali or alkaline earth metal phosphate may be used as the salt which will form a complex salt with iron; for example the liquid or paste may comprise mono-calcium phosphate and zinc chloride, oxide, or phosphate.  The liquid may be made into a paste by the addition of dextrine or kieselguhr.  Instead of a phosphate an acetate may be used in conjunction with glycerine, e.g. in the form of a paste comprising zinc chloride, potassium acetate, glycerine, kieselguhr, and water. A plurality of layers of the aqueous pastes may be applied, in which case the formation of the coating may be improved by including subdivided iron or a small excess of weak acid, e.g. tartaric acid, in some of the layers. When a phosphate is used in the liquid or paste the coating produced consists of a metal layer covered by a layer of insoluble phosphates.  The coatings produced by the action of the pastes may be used as undercoats for paints.  According to a further modification the iron or steel structure is treated with a solution of mono-calcium phosphate to form a phosphate layer prior to the treatment with the metallizing liquid or paste, the metal layer being formed under the phosphate layer.  The treatment of ships, ships' tanks, steam boilers, pipe lines, bridges, pillars, &c. is referred to.
Patent GB-391566-A (GB)
Title: Improvements in liquid fuel and pulverulent fuel burners
IPC: F23D11/10
Filed: 1932-02-08
Abstract: 391,566. Liquid and pulverulent fuel burners. DOBLE, W., 4053, Harlan Street, Emeryville, California, U.S.A. Feb. 8, 1932, No. 3740. Convention date, March 6, 1931. [Class 75 (i).] A liquid and pulverulent fuel burner comprises a venturi tube 16 provided with an axially and transversely tapered projection 31 to form in the air current passing through the tube a low-pressure area into which a mixture of fuel and air are delivered by a pipe 18. In the burner construction shown a blower 7 delivers air through a conduit 8 to a nozzle 12 formed with a throat 13 adajcent to which the outlet from the tube 16 is arranged. Part of the air is diverted by a scoop member 26 through a sump 24 past the fuel nozzle 21 to the pipe 18 which preferably has a throated end portion 28. The sump 24 is fitted with a drain pipe 25 for excess fuel.
Patent GB-510790-A (GB)
Title: Improvements in steering gear
IPC: B63H25/28
Filed: 1938-02-07
Abstract: 510,790. Fluid-pressure servomotor-control systems. JOHNSON, M. E., and BARKER, S. Feb. 7, 1938, No. 3767. [Class 135] In steering gear for boats and vehicles comprising a servomotor cylinder or cylinders employing vacuum or fluid pressure which is controlled by a valve actuated by manual operating means, the control valve is interposed in the connections between the manual operating means and the rudder, road-wheels or the like and the servomotor piston or pistons is connected to the rudder, road-wheels or the like independently of the manual operating connections. The invention is shown applied to a high-speed power boat a having three rudders b, b<1>, b<2> on separate spindles c, c', c<2>. The latter have spindle arms d, d<1>, d<2> connected by rods e, e'. The centre spindle c<1> has a further arm d<3> connected by a piston rod g' to the piston g of the servomotor h, which is pivoted at h'. The two ends of the servomotor are connected by flexible pipes h<2>, h<3> to the control valve p, r. The latter comprises a grooved piston p centralised within a casing r by springs q, q'. The two parts of the valve p, r are respectively connected to the two parts of a connecting rod j, j<1>. The rod j is also connected to the drop arm k of a worm and wheel, cam and roller or other suitable steering gear l of the type used on motor vehicles. The gear l is operated from a steering wheel o by chain and sprocket gearing m, m', m<2>, n, n', n<2>, n'. The other rod section j' is secured to an arm i on the rudder spindle c<2> so that the movement of the servomotor restores the control valve casing r to its previous relative position to the valve member p, i.e., to the central position shown in Fig. 3. The pipes h<2>, h' are connected to ports x<2>, x<3> which are normally partly masked by the lands p<1>, p<2>. The lands p<1>, P<2> may also be arranged so as to mask the ports x<2>, x<3> completely or to expose parts of these ports to the suction or pressure. The casing also has atmospheric ports z, z<1> opposite the respective grooves y, y<2> and a supply port x opposite the central groove y<1>. Either fluid pressure or vacuum may be employed to operate the servomotor. As shown the port x communicates by a junction member s and flexible pipes s<1>, s<2> with vacuum tanks t, t<1>. The latter may be exhausted by an exhauster v connected with the tanks through pipes u, u<1>, u<2> and a junction box w fitted with non-return valves. The control valve may be of the rotary type. In the application to motor vehicles, the control valve is provided in the usual drag link.
Patent GB-275279-A (GB)
Title: Improvements in or relating to strengthened glass
IPC: B32B17/10
Filed: 1926-02-10
Abstract: 275,279. Head, P. H., and Safety Glass & Xetal Products, Ltd., Feb. 10, 1926. Grant of Patent refused. Compound sheets. - Consists in making compound glass plates or blocks by facially connecting by means of an adhesive a number of sheets or pieces of glass, two or more of which are of contrasting thickness. Interposed layers of celluloid, gelatine, or equivalent material, which may have a coloured or other design, may be provided as a connecting medium between the glass sheets or blocks. The Figure shows a thin sheet 2 of glass attached to each face of a thicker sheet 1 by celluloid &c. 3. "Bullet-proof" glass is made in accordance with the invention by attaching a thin sheet of glass by celluloid &c. to a very thick glass plate or block.
Patent GB-764797-A (GB)
Title: Improvements in railway vehicle compressed air braking systems
IPC: B60T15/12
Filed: 1955-02-09
Abstract: 764,797. Fluid pressure railway brakes. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. Feb.9, 1955 [Feb. 25, 1954], No. 3820/55. Class 103 (1). A driver's valve RM for fluid pressure railway brakes has a modified feed valve SA which in combination with a supplementary volume chamber 7 having a calibrated orifice 8 open to atmosphere avoids the danger, as with known driver's valves used on long trains, such as of 80 vehicles, that either the rear vehicle brakes may not be released or that the vehicle at the head of the train may become overcharged. When the driver's valve RM is placed in the limited overchange position, corresponding to Fig. 1, the brake pipe CG is fed via the feed valve SA, connected at 16, the regulation of which corresponds to the normal pressure (for example 5 Kgs/cm<SP>2</SP>) given by the spring 38 plus a certain overcharge controlled by the supplementary effort of the piston 41, moved upwards by the pressure in space 40, which exerts a thrust under the diaphragm 35. Under these conditions, firstly, an escape of air to atmosphere, via the hole 47 will occur, and secondly there will be a return of air from the supplementary volume 7 (if the pressure of this has been greater than the brake pipe pressure) to the brake pipe CG by the pipe 4, and the supplementary passage 2 in the rotary valve 1 until the pressure in volume 7 equalizes with that of the brake pipe CG, which will then be fed at a pressure equal to normal pressure (for example 5 Kgs/cm<SP>2</SP>) plus the overcharge (for example 300/400 grams), the high pressure in the pipe CG then allows the release of all triple valves throughout the train. In another embodiment described, the feed valve SA has been modified so as to comprise two distinct parts, one of which is a pilot valve that regulates the normal pressure in a stable and accurate manner and the other a relay valve which controls the pressure in the brake pipe CG according to the normal pressure and an overcharge of, for example, 300/400 grams, such increase in pressure being obtained in the limited overcharge position of the driver's valve RM and facilitating release of the brakes throughout the train.
Patent GB-1062860-A (GB)
Title: Closed loop control system
IPC: G05B11/01
Filed: 1966-01-28
Abstract: 1,62,860. Automatic control systems. INTERNATIONAL BUSINESS MACHINES CORPORATION. Jan.28, 1966 [Feb.23, 1965], No.3857/66. Heading G3R. In a closed loop system, a plant or process 10 to be controlled is associated with digital computer 12 and analog controller 14, a device 16 sensing a condition of the plant such as liquidlevel and mechanism 18 controlling a variable such as rate of flow of liquid. The digital computer receives analog signals from device 16 and generates analog signals through line 32 to unit 24 for comparison with a reference signal on line 30. The error signal is fed back to mechanism 18 and is also fed back to the analog input unit 20, the computer 12 acting as a low pass filter whereby the rate of change of the signal on line 32 has a predetermined value when the error signal is small, and when the error signal is greater, the rate of change is equal to the error signal. During each cycle the computer uses the magnitude of the error signal during the preceding cycle in its calculations, the results of which establish the magnitude of the signal on output C which is maintained during the succeeding time period. When the reference voltage is changed, the error signal changes immediately, and, on the next cycle, the rate of change of feedback signal is established by the magnitude of the new error signal. If the magnitude of the feedback signal changes for any other reason, the system responds slowly, the length of each cycle being such as to eliminate high-frequency noise signals. In another arrangement, the signal representing a variable to be controlled is fed through a variable integrator to a comparator, the delayed error signal being fed back to the integrator provided that the magnitude of the delayed signal is greater than a fixed value. Otherwise, a minimum limit reference signal is supplied to the variable integrator. The integrator may comprise a photo-resistor associated with a light source and capacitor.
Patent GB-419341-A (GB)
Title: Improvements relating to feeders for pulverised material
IPC: B65G65/48
Filed: 1934-02-06
Abstract: 419,341. Feeding pulverized fuel to furnaces. HOUTZ, E. L., 18, Holborn Viaduct, London.-(Pettibone, W. W.; 256, West 22nd Street, Erie, Pennsylvania, U.S.A.) Feb. 6, 1934, No. 3878. [Class 51 (i).] Apparatus for delivering pulverized fuel into a current of air which conveys it to a furnace, comprises a rotary table 10 having flanges 11, 12 forming a peripheral groove 13, the fuel entering this groove from a hopper 36 through an aperture 37 and being discharged therefrom to the inlet 33 of a fan 29 by a scraper 42. The latter is adjustably mounted so that the extent to which it projects into the groove 13 may be varied. To prevent any fuel from reaching the upper bearing 26 of the shaft 14 carrying the table 10, the housing 54 is formed with a sleeve 56 extending upwardly into a deep groove 57 provided on the underside of the table. The housing 34 enclosing the table 10 is formed with a groove 51 which collects any fuel leaking past the flange 12, the fuel so collected being carried round and delivered to the fan inlet 33 by teeth 52 formed on a flange 49 depending from the flange 12. The table 10 and fan 29 are both driven by the motor 16, the latter directly by the motor shaft 17 and the former through worm gearing 18, 19, 22, 23 enclosed in an oil reservoir 24. The oil in the latter is maintained at such a level that the high-speed shaft 17 operates above it.
Patent GB-1472969-A (GB)
Title: Protected mos circuit
IPC: H01L29/78
Filed: 1975-01-29
Abstract: 1472969 Transistor circuits ROCKWELL INTERNATIONAL CORP 29 Jan 1975 [28 March 1974] 3888/75 Heading H3T An MOS element 14 in a circuit is protected against the effect of charges on the interelectrode capacitances by a capacitor 19 which is connected to the element 14 by a switch 20 when the circuit is energized, but which is isolated from it when the circuit is de-energized to allow the inter-electrode capacitances to provide voltage feedback thereby dissipating spurious voltage signals. The circuit is described as a logic inverter to which an input is applied from a previous stage for a gate 24 controlled by a clock signal.
Patent GB-114036-A (GB)
Title: Improvements in or relating to Levelling or Adjusting Screws for Measuring and other Scientific Instruments.
Inventor: WATTS FRANK CHARLES
IPC: F16M11/06
Filed: 1917-03-17
Abstract: 114,036. Watts, F. C., Watts, G. W., and Fearnley, J. L., (trading as Watts & Son, E. R.). March 17, 1917. Cases, clock.-Levelling or adjusting screws 4 take into a tubular fitting 3, the upper portion of the fitting being internally threaded, extemally tapered, and provided with longitudinal saw-cuts. By screwing down an internally tapered cap 9, the fitting 3 is compressed on to the screw to compensate for wear or to lock it in position.
Patent GB-731861-A (GB)
Title: Improvements in the production of cigarettes with mouthpieces
IPC: A24C5/47
Filed: 1953-02-12
Abstract: 731,861. Cigarette-making machines. KORBER, K., and KOPER, E., [trading as KORBER & CO., KOMM.-GES., K.]. Feb. 12, 1953 [Sept. 8, 1952], No. 3961/53. Class 130. The projecting flaps of an adhesive-coated strip 9 attached to the contact zone between a cigarette 8 and mouthpiece 8a fed to a continuously rotating member 2 and supported thereon in abutting relation are in turn folded down by radiallymovable elements 20, 36 whilst the assembly 8, 8a is in movement in a continuous path without rotation or radial displacement relative to the member 2. As shown, a rotary drum 10 delivers assemblies of two cigarettes 8 and an interposed double-length mouthpiece 8a to flutes 3 of a drum 2, provided with elements 20, 36 for each flute, at a point where suction is applied to the flutes via bores 4<1>, 4<11> from a chamber 5 defined between the drum interior and a stationary segment 5<1> therein. As the assemblies 8, 8a pass beneath and are pinned down by the bars 14 of a rotary cage 13 the elements 20, 36 are partially projected outwards together to initiate wrapping of the strip 9, each element in turn as the drum 2 travels on being then projected fully and retracted partially to effect full flap folding-down. Finally, the elements 20, 36 are fully retracted and the assemblies 8, 8a pass a knife 44 which divides them into mouthpiece cigarettes. Gears 15, 17 on the members 10, 13 mesh a gear 16 on the drum 2. The elements 20, 36 are pivoted, preferably under the constraint of a torsional spring urging them towards the assemblies 8, 8a, to carriers 18, 34 operated against springs 30, 43 by rockshafts 24, 31, arms 23, 38 of which engage pins 22, 37 on the respective carriers and further arms 27, 42 of which have rollers engaging stationary cam tracks 29, 40. Each element 20 or 34 may be in two or three axially aligned portions. The carriers 18, 34 may be mounted on a parallelogram linkage ; the bars 14 may be independently controlled. The mouthpieces 8a may be paper tubes and/or filter elements.
Patent GB-545457-A (GB)
Title: Improvements in heat operated refrigerating apparatus
IPC: F25B33/00
Filed: 1941-03-26
Abstract: 545,457. Refrigerating. ELECTROLUX, Ltd. March 26, 1941, No. 4054. Convention date, Feb. 7, 1940. [Class 29] Absorption machines.-An upright generator 10 of a continuous-cycle inert gas apparatus, provided with a flue 12 adapted to receive an electric heating cartridge or the wick or other burner of liquid or gaseous fuel, is dimensioned in diameter and height to provide sufficient heat transfer surface from the flue while leaving room above the-generator for an unheated stand pipe 13 to which strong liquor from the absorber is delivered by the usual "pumping" coil 26 and pipe 40. The stand pipe may be formed as a partial coil at 43 or as a coil around the top of the generator. The whole of the generated vapour rises through the strong liquor in the stand pipe and is analysed. Where a gas burner 35 is used the lower opening of the flue may be partly closed, to lessen entry of cold air, by a ring 34 serving to support a known radiating device 38. The upper end 41 of the flue may extend laterally through the usual heat insulation.
Patent GB-1134985-A (GB)
Title: 2-halo-1,1,3,3-tetrafluoropropanes
IPC: A61K31/02
Filed: 1967-01-27
Abstract: 1,134,985. 2 - Halo - 1,1,3,3 - tetrafluoropropanes. BAXTER LABORATORIES Inc. 27 Jan., 1967 [2 Feb., 1966], No. 4058/67. Heading C2C. [Also in Division A5] Novel 2-chloro- and 2-bromo-1,1,3,3-tetrafluoropropane are prepared by the interaction of the novel 1,1,3,3-tetrafluoro-2-propyd-p-toluenesulphonate and the appropriate alkali metal halide, e.g. KC1, LiC1, KBr or LiBr. The novel intermediate toluenesulphonate is prepared by reacting 1,1,3,3 - tetrafluoro - 2 - propanol with p-toluenesulphonyl chloride and the propanol is obtained by the hydrogenation of 1,3- dichloro-1,1,3,3-tetrafluoroacetone or by reducing 1,1,3,3-tetrafluoroacetone with sodium borohydride.
Patent GB-556322-A (GB)
Title: Improvements in or relating to metal bonded abrasives and the manufacture thereof
IPC: B24D18/00
Filed: 1942-03-27
Abstract: 556,322. Dental instruments, engraving tools &c. CARBORUNDUM CO. March 27, 1942, No. 4097. Convention date, March 27, 1941. [Class 41] [Also in Groups VI, XVI and XXIII] Articles such as dental drills or grinding wheels, engraving points &c. are provided with an abrasive surface by bonding thereto abrasive grains such as diamond particles by electrolytically deposited metal. In the cell shown in Fig. 1, into which electrolyte enters by pipe 12 and from which it is withdrawn by pipe 16, a mass of loose abrasive particles is packed between the metal blank 19 to be coated and a hollow anode 17 under which is disposed a screen 18 of non- conducting material. Fig. 2 shows a cell arranged for coating the peripheral edge of 'a grinding wheel 40. Fig. 3 shows on arrangement for the production of thin cut-off wheels. The cathode in this construction is an annulus 52 of copper or other metal coated electrolytically with a " parting " layer 60 of lead, disposed in an insulating tray 51 resting on the bottom of the cell, electrical connection to the annulus being made by a wire 55 passing through an insulating tube 54. The anode 57 is supported on the upper edge of the cell. Abrasive particles introduced at the surface of the electrolyte are allowed to fall on to the annulus, being restricted by a tube 58 to the outer margin thereof. The tube 58 is then removed and plating carried out. Figs. 4 and 5 show apparatus for producing dental or engraving points in a series of removably mounted cells 10 supported on rests 72 and operating as in Fig. 1. The cells are supplied with electrolyte from a manifold 65 through check valves 69, Fig. 5, which are opened by the upwardly extending necks 71 of branch pipes 12 attached to the cells 10 when these are placed in position, the issuing electrolyte passing to a trough 77 and being re-circulated by a pump 74. Electrical connections are made from a connection block 78 across the plating circuit 79 by jacks and plugs.
Patent GB-744652-A (GB)
Title: Needle positioning device for sewing machines
IPC: D05B69/22
Filed: 1953-01-21
Abstract: 744,652. Sewing-machines. SINGER MANUFACTURING CO. Jan. 21, 1953 [Jan. 30, 1952], No. 4116/55. Divided out of 744,610. Drawings to Specification. Class 112. A sewing-machine electrically driven through a clutch and brake controlled by a treadle has associated with it an electrically-actuated device (e.g. means for controlling the stopping position of the machine), and the connection between the treadle and the clutch and brake includes relatively-movable members providing lost-motion which is used to actuate a switch controlling the device. The apparatus described is the same as that shown in Figs. 1-6 of Specification 744,610.
Patent GB-1283772-A (GB)
Title: Improvements relating to apparatus for use in image projection
Inventor: HOLMES ANTHONY EDWARD
IPC: G03B21/11
Filed: 1969-01-25
Abstract: 1283772 Optical projection apparatus LEYLAND PHOTOCOPYING Ltd 17 April 1970 [25 Jan 1969] 4345/69 Heading G2A In a projection apparatus for microfilm or other transparencies, the projected image size and focus are controlled by fluid-pressure operable means, a cylinder 13 and pistons 14 acting to displace a carriage 15 bearing projection lens 40 along slide rods 12 for focusing, and interconnected cylinders 1 and 8 with pistons 2 and 9 acting respectively to displace mirror 5 on carriage 3 along slide rods 4, and to displace on rods 11 the yoke 10 bearing the slide rods 12, to vary the size of image projected on to screen 26. Lamp and condenser mounting 1À8 and transparency carrier 17 are fixed on rods 12, cooling air being provided by fan 24. Sensitive paper may be located over screen 26 against stop 28.
Patent GB-162125-A (GB)
Title: A new or improved handle for suit cases, dressing bags and the like
IPC: A45C13/26
Filed: 1920-02-12
Abstract: 162,125. Critchley, H. S. B. Feb. 12, 1920. Handles.-The ends of a detachable handle for a suit-case, dressing - bag, &c. are provided with fittings b adapted to slide i n t o correspondingly - shaped grooves c formed in fittings d permanently secured to the receptacle. Accidental detachment of the handle may be prevented by spring catches f provided with push-buttons h.
Patent GB-989618-A (GB)
Title: Improvements in or relating to liquid measurement
Inventor: COATES TERENCE JOHN
IPC: G01F23/26
Filed: 1961-02-06
Abstract: 989,618. Determining liquid level. S. SMITH & SONS (ENGLAND) Ltd. Feb. 12, 1962 [Feb. 6, 1961], No. 4369/61. Heading G1N. A capacitance probe for liquid level measurement comprises a cylindrical conductivie structure 17 having an insulated wire second electrode 16 disposed in a plurality of paths extending lengthwise within it. The wire may be of different lengths to compensate for irregularities in tank cross-section and is mounted by being passed through holes 14, Fig. 2, in spacers 13. The spacers are attached to a control metal tube 12 which is electrically connected to the outer cylinder by screws 18. This arrangement is said to compensate for any movement of the wire. The tubes 12 and 17 may be of aluminium, and the wire may be of stock type or specifically manufactured with insulation of accurate dimension, the insulating being of nylon, P.T.F.E. or P.T.F.C.E. Tube 17 is riveted to a skirt 20 and a hole 22 is provided to permit free flow of the liquid. The unit may be bolted to the top or bottom of a tank by a flange 21, the leads passing through seals and being connected to a coaxial feeder. Tube 17 may be perforated throughout its length or perforated at one end only, may be made of metalised fibre or built from metal rods or wires. The capacitor may be incorporated in a self-balancing bridge for measuring purposes. The arrangement is suitable for measuring levels of water, methanol, and water glycol mixtures, in aeroplane tanks, and the insulation must be impervious to the liquids. Dimensions and capacitance values are exemplified.