baber/WOPTO huggingface dataset:
Patent GB-281253-A (GB)
IPC: F01K7/34
Filed: 1927-11-07
Abstract: 281,253. Aktiebolaget Vaporackumulator. Nov. 29, 1926, [Convention date]. Automatic gear.-In a steam-supply installation having high and low-pressure steam mains F, N, and a motor with high and low pressure sections H, C, the former of which exhausts to the low-pressure main N and to the low-pressure section C through a valve U, V controlled by the pressure in the tapping-pipe T to keep that pressure constant, a valve X is arranged in the pipe T which begins to close as the speed' of the motor decreases after the live steam regulator Z has fully opened owing to the power demand of the motor and the demand of the low-pressure consumers becoming excessive. The power of the motor is thereby maintained, additional steam passing to the main N through the branch L. In the turbine plant shown, the valve X may be controlled by a centrifugal governor mechanically rotated by the engine shaft, or by an electric motor whose speed changes with the speed of the generator G, or a pump may be driven by the electric motor which may be in series with the generator, the delivery head of which pump varies with the speed and the pressure thereof affects the valve X. The pump delivery may pass through an adjustable throttling-device, the pressure affecting a diaphragm regulating the valve. If the tapped steam supplies several consumers, the valve X may be mounted upon the supply pipe of only one, the other consumers thereby getting unthrottled tapped steam. In the arrangement shown in Fig. 3, a third main E is provided the consumers attached to which obtain steam from an accumulator S. The motor condensate is supplied to the accumulator S from which it is pumped to the generator. In addition to the valve X the accumulator may have a valve U, V, controlled by the pressure in the main F. The invention may be applied to a multi-stage motor. If there are several valves X, the valve in the accumulator discharge main will first close, so that the reduced quantity tapped by the other valves may be supplemented by steam from the accumulator.
Patent GB-463085-A (GB)
Title: Improvements in insulating compositions
IPC: C04B26/04
Filed: 1935-10-29
Abstract: Insulating compositions, capable of moulding above 200 DEG  C comprise polymerized N-vinyl carbazole and mica.  The ingredients may be incorporated on heated rollers or the mica may be applied to a thin foil of polymerized N-vinyl carbazole, cut up and a number of pieces pressed together.  The mica may also be introduced into solutions of polymerized N-vinyl carbazole and the solutions worked up.  Thus, alternate layers of split mica and polymerized N-vinyl carbazole are built up upon a steel plate and then subjected to pressure at 200--250 DEG  C.; split mica laid out upon a substratum of textile material is coated with a solution of polymerized N-vinyl carbazole, a further layer of mica is applied and the material is hot pressed after evaporation of the solvent, or plates of mica treated with the solution are applied to each other and hot pressed; or the mica may be suspended in the solution and, after evaporation of the solvent, the resulting films are further worked up.  Specification 444,260 is referred to.
Patent GB-1409066-A (GB)
Title: Method of manufacturing a solvent
IPC: B41M5/165
Filed: 1972-06-27
Abstract: 1409066 Perfumed paper JAPAN GASOLINE CO LTD and KUREHAKAGAKU KOGYO KK 27 June 1972 30 [June 1971] 29983/72 Heading B2E [Also in Divisions C3, C4, C5 and D2] Hydrocarbon fractions obtained by the alkylation of a specified aromatic gas oil (see Division C5) are used as solvents for perfumes, in the manufacture of perfumed paper. In example 2, beta-phenylethanol is dissolved in the solvent, microcapsulated and coated on to paper to provide a pressure-sensitive perfumed paper. Synthetic musk ketone and jasminal can be applied similarly. Reference has been directed by the comptroller to Specification 1250736.
Patent GB-536069-A (GB)
Title: Improvements in packaging apparatus
IPC: B65B7/20
Filed: 1939-11-15
Abstract: 536,069. Packeting. ROSE, A. G., and ROSE BROS. (GAINSBOROUGH), Ltd. Nov. 15, 1939, No. 30106. [Class 94 (i)] Relates to apparatus for closing the two inside flaps of a cardboard box or like container before the outer flaps are closed to seal the container. According to the invention, a container is carried by a conveyer beneath a rotatable front folder which engages and closes the forward flap of the moving container, and a rotatable rear folder that engages and folds the rear nap, the folders being moved apart from one another as the rear flap approaches in order to allow the flap to pass between them. The apparatus comprises a support 16 on which is pivoted a front folder 19 and a rear folder 21, the support being rotated in synchronism with the movement of a conveyer 14 that carries the containers 11. The folder 21 is urged outwards by a spring 46, and the folder 19 is also urged outwards by a spring 41 but it is also provided with an arm 37 that bears on a stationary cam 39. The timing of the moving parts is so regulated that the upstanding rear flap A of the container just clears the tip of the rear folder 21, as shown, and at this time the cam 39 has moved the folder 19 inwards so as to leave the maximum gap between the tips of the folders. After the flaps have been folded, the conveyer is carried beneath a retaining member 48 which resiliently presses the flaps together and then between ploughs 56 which turn the remaining flaps outwards for the application of gum. In a modified construction, the folder 21 is moved outwards by a stationary cam as the folder 19 is moved inwards: The support 16 is secured to a shaft 22 which is journalled in bearings 23 in a pair of arms 24 pivoted to the frame 28 of the machine. The arms are free to swing about the pivots 27, but the movement of the support 16 is restricted by arcuate slots 32 in the frame through which the shaft 22 passes. If a container does not pass smoothly through the apparatus, or in any way fouls the folders, the arms 24 with the support 16 move upwards and release a spring-loaded switch 59 which stops the drive of the machine. Alternatively, the support 16 may be driven through a slipping clutch mechanism which yields in the event of an obstruction occurring during the folding operation.
Patent GB-490038-A (GB)
Title: Improvements in or relating to change speed gears
IPC: F16D23/04
Filed: 1936-11-05
Abstract: 490,038. Positive clutches ; variablespeed gearing. SOC. ANON. G. CLAUDE, MANET, & CIE. Nov. 5, 1936, No. 30141. Void. Convention date, Aug. 3. [Class 80 (ii)] Friction synchronizing means for a positive toothed clutch for use in variable-speed gear. ing comprises rods 11 slidable longitudinally in holes in the movable clutch member 1 but normally restrained by spring-loaded ball detents 13, the ends of the rods being bevelled to engage a bevelled surface 16 formed on the fixed gear-and-clutch member 6 or 7. The rods may be polygonal or circular, and engage the surface 16 with only a part of their bevelled ends, so that, if the rods are circular, they tend to turn about their own axes and thus augment the friction action. The clutch teeth 4 and 5 on the clutch members are formed by drilling longitudinal countersunk holes, such as 8, and then recessing the side faces so as to leave semicircular depressions. Alternatively, the gear teeth of the member 6 or 7 may be utilized as clutch teeth. The male teeth may be provided on the member 1 and the female teeth on the gear 6 or 7, and the inclination of the bevel surfaces may be reversed.
Patent GB-709909-A (GB)
Title: Improvements in or relating to an electron tube with fluorescent screen, particularly a tuning indicator tube
IPC: C09J7/21
Filed: 1950-12-08
Abstract: 709,909. Cathode-ray tubes. SIEMENS & HALSKE AKT.-GES. Dec. 8, 1950 [Dec. 9, 1949; Dec. 9, 1949; Jan. 13, 1950; Jan. 23, 1950; Feb. 6, 1950; Feb. 6, 1950; Feb. 10, 1950; Feb. 10, 1950], No. 30142/50. Class 39(1) [Also in Group XL(c)] A tuning indicator tube or the like comprises a long narrow fluorescent screen on which an indication is produced in the form of a luminous column, and a cathode which is arranged so that its longitudinal axis is in the same plane as the longitudinal axis of the luminous column, the cathode being so thin in relation to the maximum width of the luminous column, and the remaining electrode or electrodes and the tube envelope being so arranged, that a clear view of the luminous column may be obtained from a view-point that lies on the same side of the screen as the cathode. In one arrangement, Fig. 1, the tube comprises a fluorescent screen 3, a control electrode 2 in the form of a diaphragm provided with a V-shaped aperture, and a cathode 1 which is preferably directly heated but may be semi-indirectly heated. The indication is in the form of a line of variable length and the screen is viewed in the direction of the arrow 4 so that the cathode is seen in front of the screen. The cathode may be heated by the anode current of one or more valves in a radio receiver so that the cathode temperature is changed simultaneously with any change in the length of the luminous column to give a supporting indication. In another arrangement, Fig. 2, the electrode 7 corresponds to the electrode 2 of Fig. 1 and two additional electrodes 5, 6 are provided to control the luminous intensity or the width of the luminous column. The luminescent screen may be viewed through a cylindrical lens which may be attached to the envelope; the lens may be grooved on the side facing the screen as shown in Fig. 10. As an alternative the screen may be viewed edgewise through a plurality of thin glass plates stuck together. The backing plate for the fluorescent screen may be roughened or may be provided with horizontal grooves 100, Fig. 12; preferably a silver coating is provided on the backing plate before the application of the fluorescent material.
Patent GB-1144126-A (GB)
Title: Battery charging systems
Inventor: WRIGHT MAURICE JAMES
IPC: H02J7/14
Filed: 1965-07-16
Abstract: 1,144,126. Automatic voltage control. JOSEPH LUCAS (INDUSTRIES) Ltd. June 30, 1966 [July 16, 19651, No.30257/65. Heading G3R. [Also in Division H2] A multi-phase permanent magnet alternator 11 charges a battery 21 over a full wave rectifier comprising diodes 15, 16, 17 and thyristors 12, 13, 14 the gate electrodes of which are connected to receive firing pulses from an oscillator 31 to 36 which is associated with a Zener diode 24 responsive to the battery voltage. The arrangement is such that the oscillator operates with a mark space ratio which varies with the battery voltage, the oscillator operating permanently to keep the thyristors in a conductive state when the battery voltage is low and not operating at all when the battery voltage is high. To ensure a more accurate control, the Zener diode 24 is connected to the input of the oscillator by way of a multi-vibrator constituted by transistors 25, 29 which oscillate between their fully conductive states with a markspace ratio determined by the current supplied through the Zener diode 24.
Patent GB-1253574-A (GB)
Title: Improved process for preparation of alkyl half esters of maleic anhydride copolymers
IPC: C08F8/00
Filed: 1969-06-16
Abstract: 1,253,574. Alkyl half esters of maleic anhydride copolymers. MONSANTO CO. 16 June, 1969 [17 June, 1968], No. 30434/69. Heading C3P. A copolymer of maleic anhydride and a C 2-4  olefin or a C 1-3  alkyl vinyl ether is reacted with a C 1-8  linear primary alcohol, C 5-8  branched chain primary alcohol or a C 6-8  secondary alcohol by a process wherein the reaction mixture contains 0-5-1-1 molecular proportions of alcohol per anhydride group, additionally there is present 0'5 - 2-0 molecular proportions of isopropanol per maleic anhydride group, the reaction is carried out at superatmospheric pressure at a temperature at least 2 C. above the atmospheric boiling point of the reaction mixture but below the temperature where substantial product degradation occurs.
Patent GB-1293103-A (GB)
Title: Hydraulic reservoir for a master cylinder
IPC: B60T11/228
Filed: 1971-06-30
Abstract: 1293103 Hydraulic accumulators SOC ANON DBA 30 June 1971 [24 July 1970] 30533/71 Heading F1P [Also in Division F2] An hydraulic reservoir for a master cylinder has a removable cap sealing an expanding diaphragm 18 on a refill port 16 of the reservoir to define a variable volume chamber 22 sealed from the atmosphere and a resilient means, e.g. a spring 26, located between the bottom of the diaphragm and a retaining port 28 at the cap to maintain fluid in the chamber 22 above atmospheric pressure. The chamber 22 communicates with a tandem master cylinder. The retaining port 28 is located in the cap 20 by a bayonet connection.
Patent GB-189763-A (GB)
Title: Improved process for applying transparent stamps to glass
IPC: C03C15/00
Filed: 1922-11-08
Abstract: 189,763. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Dec. 1, 1921, [Convention date]. Void (Published under Sect. 91 of the Act]. Ink.-An acid-resisting ink for printing or stamping designs on glass prior to etching is composed of " Lanoline," bees-wax and resin with or without resin-oil and horse-fat, and is preferably applied to the glass in a fused state.
Patent GB-190869-A (GB)
Title: Improvements in and in the manufacture of hose pipe and like clips
IPC: B21D53/36
Filed: 1921-11-16
Abstract: 190,869. Showell & Sons, Ltd., E., and Smith, H. J. Nov. 16,1921. Clips, band. - Hose pipe and like clips, the ends a<1>, a<2> of which are bent up to receive a fastening screw c, are constructed from a metal blank a from the middle a<4> of which a strip e is stamped out, this strip being mounted in pressedup channels f in the clip so as to bridge the space between the ends a', a<2> and lie flush with the interior of the ring.
Patent GB-1506882-A (GB)
Title: Current regulating circuits
IPC: H03F3/347
Filed: 1975-07-22
Abstract: 1506882 Exponential function generators RCA CORPORATION 22 July 1975 [24 Feb 1975] 30627/75 Divided out of 1506881 Heading G4G [Also in Divisions G3 and H3] A current amplifier having a gain which falls exponentially with input current I 1  applied at terminal 32 comprises transistors 35 and 36 and resistor 34. At small input currents, little voltage is dropped across resistor 34 so the base-emitter voltages of transistors 34 and 36 are substantially equal. The output current at 33 is therefore -HoI 1  where Ho is the ratio of the emitter areas of transistors 36 and 35. As I 1  increases the voltage drop across resistor 34 reduces the base-emitter voltage of transistor 36 relative to transistor 35, thereby reducing the gain.
Patent GB-1110134-A (GB)
Title: Hydraulic servo control device
IPC: B63H25/28
Filed: 1965-07-20
Abstract: 1,110,134. Fluid-pressure servomotor systems. J. MERCIER and B. MERCIER. July 20, 1965, No. 30794/65. Heading G3P. A hydraulic control device for rotating a ship's rudder shaft comprises a plate 21 mounted on the shaft 14 and connected to the rows of pivoted jacks 16A-16D. Inter-connected valves 61, 62 control the supply and exhaust of fluid to the jacks, the valves being connected to a spring-loaded lever 53 rotated by movements of a ram 50. A manual pressure supply device 44 controls the supply of fluid through lines 42 or 43 to a valve 40 which normally connects lines 42 and 43 to ports 46 and 47 leading to opposite sides of the ram 50 and the ports 46, 47 are also connected to line 38, 39 leading to the opposite sides of a hydraulic motor 15 connected to the shaft 14. The ram 50 carries throttling hands 56, 54, 57 which restricts the rate of the flow to the left hand face of the ram 50. The supply to valves 61, 62 is provided by pumps 83, 90, 84, the pump 94 having an associated accumulator 89 and a valve 87 which is opened only on a predetermined movement of the lever 53. In operation, assuming that the manual control is actuated to supply pressure to line 42 and the rudder is in a neutral position, fluid pressure flows to the left hand side of the piston 50 at a rate controlled by the throttle and when the pressure is sufficient to overcome the loading, the lever 53 is rotated to move the valves 61, 62. If the lever movement is small, the valve 87 is not actuated and the pumps 83, 84 alone supply fluid to the jacks 16A-16D. The jack cylinders carry arms (23), Fig. 3 (not shown) which co-operate with valves (25) so that initially two opposite jacks say 16A, 16D move outwards while the other two 16B, 16C move inwards thus rotating the plate 21 in an anti-clockwise direction. However, once the axis of the jack rams 16B, 16C reach the line between the jack pivot and the shaft axis, the valves 25 of jacks 16B, 16C are reversed so that these jacks also act outwards. The initial supply of fluid from line 42 to the motor 15 does not provide sufficient torque to rotate the shaft 14 but a rotation of the shaft by the jacks, the motor rotates to cause cavitation and a subsequent fall of pressure in the line 42 which allows the spring- loading on the lever 53 to close the valves 61, 62. With a rapid movement of the wheel 45 of device 44, a rapid pressure change in the line 42 causes a quicker action of ram 50 and a further movement of lever 53 which opens the valve 87 to provide a greater supply of fluid with the resultant rapid movement of the shaft 14. The control 44 may be isolated by actuation of a solenoid valve 40 in response to movement of the rudder beyond 40‹ or manually and the ram 50 controlled by an electric motor 59 through a rack and pinion. In a modification, the manual control pumps liquid to actuate a distributing valve controlling the supply and exhaust of fluid to and from a rotary motor attached to the shaft. The distributing valve is recentred on movement of the shaft by a motor similar to the effect of motor 15.
Patent GB-1515524-A (GB)
Title: Security film for shatterproofing windows
IPC: B32B15/09
Filed: 1975-07-24
Abstract: 1515524 Security film for shatterproofing windows MATERIAL DISTRIBUTORS CORP 24 July 1975 [21 May 1975] 31066/75 Heading B2E An adhesive transparent film for shatterproofing windows comprises 2-5 layers of polyethylene terephthalate film bonded to each other by polyethylene terephthalate copolymer layers, and a pressure-sensitive adhesive layer of a tacky formulation of acrylate polymer and elastomeric polyene on one outside face, at least two of the polyethylene terephthalate film layers being at least 25Á thick, the bonding layers being 2.5 to 7.5Á thick, and the adhesive layer being 3-15 times the thickness of each of said bonding layers, all of the layers being optically clear, and the total thickness of the film being 62.5 to 150Á. The film may have a semi-transparent sunlight control layer of vapour-deposited aluminium interposed between a face of one of the polyethylene terephthalate films and one of the bonding layers. The copolymer of the bonding layers may be a copolymer of low molecular weight relative to that of the polyethylene terephthalate film, of polyethylene glycol terephthalate, polyethylene propylene terephthalate or polyethylene butylene terephthalate. The adhesive may be a formulation of straight chain co-, homo- or inter-polymer of methyl, ethyl, propyl or butyl acrylate and a low molecular weight rubber e.g. polybutene or polyterpene. The film may have a silicone-treated paper release layer as a protective backing on the adhesive layer, the backing being peeled off before use.
Patent GB-781639-A (GB)
Title: Improvements in and relating to electric arc furnaces
Inventor: STEELE OWEN STEVENSON
IPC: H05B7/152
Filed: 1955-10-31
Abstract: 781,639. Automatic control systems for arc furnaces. BRITISH THOMSON-HOUSTON CO., Ltd, Oct. 31, 1955, No. 31099/55. Class 38 (4). In an arrangement for automatically maintaining constant the current in an electric A.C. arc furnace by obtaining control voltages responsive to the current in and voltage across the arc and utilizing said voltages to control a reversible D.C. electric motor to adjust electrode position, compensation is introduced for the reactance of the lead between the electrode and the point at which the voltage is measured. As shown, a direct voltage V1 representative of the current to an electrode 1 of a three-phase arc furnace 2 is derived from a current transformer 8 through a rectifier 10. A second direct voltage V representative of the voltage across the arc is derived through a rectifier 3 and is compensated for the effect of the volt drop in lead 12 by introducing an inductance 6 of appropriate impedance in series with the input to rectifier 3 and developing across it, through a transformer 12, an opposing voltage dependent on arc current. A capacitance 5 compensates for the effect of the reactance of inductance 6 on current flowing in the voltage responsive circuit. The difference between voltages V and V1 controls, in a manner not shown, an amplidyne exciter supplying a D.C. motor adjusting electrode position to maintain operating voltage at a value determined by the setting of a rheostat 7.
Patent GB-488822-A (GB)
Title: Improvements in devices for demonstrating schemes of decoration
IPC: G09B25/08
Filed: 1937-11-12
Abstract: 488,822. Design - building appliances. CLARK, W. H. Nov. 12, 1937, No. 31146. [Class 146 (ii)] A device for demonstrating schemes of decoration comprises a three-sided collapsable frame provided with clips or other means for selectively supporting a number of main cards representing three walls of a room decorated with wall paper, paint, &c., and further cards representing window dressings, fire places, or the like, and furniture models, or floor coverings. The frame is composed of three card or plywood members E, E<1>, E<2>, the back member E being hinged, if desired to a base D, and clips H being provided for enabling the sides E<1>, E<2> to be secured in desired positions. The cards B, B', B<2> representing the walls of the room are hinged together and are connected to the frame by clips G. Cards ruled off in squares and faced with tracing-paper are also provided so that sketches of desired schemes can be made and inserted into place. A card or wood member K may represent a ceiling and a light may be placed behind a hand-grip aperture L. The base D and back E of the frame may constitute the lid of a container O designed to accommodate the various elements, the lid being attached by levers P, and the member K forming the cover for a compartment for the furniture models F.
Patent GB-700626-A (GB)
Title: Improvements in or relating to the production of cast iron
IPC: C21C1/10
Filed: 1950-12-21
Abstract: A process for the production of a grey cast iron containing Ca comprises adding to a molten iron, which on casting gives a grey cast-iron hypereutectic in relation to carbon, a Ca-providing substance such as its carbide, nitride, cyanamide or hydride or its alloys, e.g. with Si or Ni, the addition being made under conditions which substantially prevent formation of CaO, the temperature of the molten iron being maintained below 1650 DEG C. The Ca-providing substance may be carried in a stream of inert gas through a tube dipping below the surface of the molten iron. After the addition of Ca a graphitizing inoculant such as ferrosilicon or graphite may be added.  Specification 622,419 is referred to.
Patent GB-430293-A (GB)
Title: Wooden doors
IPC: E06B3/70
Filed: 1934-10-31
Abstract: 430,293. Door bodies; panels. OY, K., and SNELLMAN, L., Kolho, Finland. Oct. 31, 1934, No. 31239. [Classes 20 (iii) and 20 (iv)] A hollow door comprises stiles composed of members 1<a> braced by transverse struts and to the frame thus formed are glued continuous surfaces of boards 2 to which are glued two plywood panels 3.