baber/WOPTO huggingface dataset:
Patent GB-655172-A (GB)
Title: Improvements in or relating to automatic control systems for aircraft
IPC: G05D1/06
Filed: 1948-02-28
Abstract: 655,172. Automatic speed control systems. SPERRY CORPORATION. Feb. 28, 1948, No. 6240. Convention date, Jan. 24, 1947. [Class 38 (iv)] An aircraft engine throttle is automatically adjusted by a bellows sensitive to air speed ; the throttle servomotor is positioned by a balanced amplifier, the input to which is supplied simultaneously by a magnetic pick-up operated by the bellows and a feed-back signal from the servomotor ; differential and integral components of the error and feed-back signals respectively are derived. As shown, the bellows 4 positions the armature 10 of the pick-up 8, the A.C. output of which is fed to the phasesensitive rectifier stage 29, 30 which supplies a D.C. signal to the balanced amplifier 46, 47, 48, 49. Throttle 63 is adjusted by servomotor 59 energized from 46, 47, 48, 49 and the generator 68 is driven by 59 and supplies the phase-sensitive rectifier 73, 74 to generate a D.C. feed-back voltage, which is a measure of the speed and direction of motor 59. A first differential of the error signal is generated at 41 and an integral of the feed-back signal at 83.
Patent GB-179714-A (GB)
Title: Improvements in upright boilers
IPC: F22B13/02
Filed: 1921-02-24
Abstract: 179,714. Hudson, T. Feb. 24, 1921. Addition to 134,002. Water - tube boilers.-The casing around the boiler described in the parent Specification is water - jacketed, the jacket serving as a feed-water heater. The inner wall 6 of the jacket tapers upwardly and is secured to the upper and lower water chambers 4, 3 by channel - section members 13, 12. The outer wall of the jacket is secured to the inner wall by channel - section members 15.
Patent GB-1400665-A (GB)
Title: Process for rendering cellulosic materials flame retardant
IPC: D06M101/08
Filed: 1973-02-08
Abstract: 1400665 Flame retardant material HOOKER CHEMICALS & PLASTICS CORP 8 Feb 1973 [17 Feb 1972] 6266/73 Heading D1P Flame retardant cellulosic material is produced by (1) impregnating the cellulosic material with an aqueous solution of pH 7 to 9 containing 10 to 40% wt of monomeric trio- (hydroxymethyl)phosphine, (2) drying the impregnated material to a moisture content of 10 to 20% wt, (3) treating the partially dried material with gaseous NH 3  for 1 to 5 minutes, (4) then treating the material with aqueous solution of NH 3  or an ammonium salt for 10 to 60 seconds to polmerise the trio(hydroxymethyl)phosphine. The impregnating solution may contain an equilibrium mixture of trio- (hydroxymethyl) phosphine and tetrakis (hydroxymethyl)phosphonium hydroxide and can be applied by padding, dipping, spraying and removed by squeeze rolls, centrifuging or coringing. The impregnated material may be dried in air or in an oven at up to 100C. The treatment of the dried material with gaseous NH 3  may polymerise up to 85% of the monomeric phosphine. The treatment with aqueous NH 3  can be performed by padding, dipping or spraying. This ammonium salt solution may contain NH 4 OH, (NH 4 ) 2 CO 3  or a buffered ammonium salt. Following polymerisation of the phosphine, the material may be scoured with a solution containing sodium carbonate, perborate, peroxide and synthetic detergents, dried and calendered. The treated materials have improved tear and tensile strength. The material treated may be cotton, rayon, paper, jute, ramie, wood and mixtures thereof, and blends of cotton or rayon with nylon polyesters or acrylics.
Patent GB-695405-A (GB)
Title: Improvements in or relating to standard sources of electromotive force
IPC: G05D23/275
Filed: 1951-03-15
Abstract: 695,405. Electric control systems. CARTON, J. March 15, 1951 [March 16, 1950], No. 6272/51. Class 40 (i) [Also in Group XXXV] In an arrangement using an electric heater and a contact making mercury thermostat for maintaining the temperature of one junction of a thermocouple constant, the junction is surrounded by the heater coil and is separated therefrom by a heat transmitting medium of high thermal inertia. The junction 7 is incorporated in a device of high thermal inertia 9 supported within, but separated by an air gap or insulating material from, a hollow body 6. The thermometer 11 is in contact with the body 6, and both are surrounded by the heater coil 4. The body 6 is made by spirally winding a strip of copper foil, the individual turns being separated by a paper strip of suitable thickness. In a modification, Fig. 3 (not shown), the thermometer bulb includes a hollow filled with tar or resin and within which the junction is embedded.
Patent GB-379990-A (GB)
Title: Improvements in the manufacture of chilled rolls
IPC: B22D19/16
Filed: 1932-03-02
Abstract: 379,990. Casting composite articles. ROBBINS, W. A., 1, Lower Green, Tipton, Staffordshire, JONES, S. A. A., 1, East Castle Street, Bridgnorth, Shropshire, and JONES, E. H., 24, Westdale Road, Rock Ferry, Birkenhead. March 2, 1932, No. 6292. [Class 83 (i).] Moulds ; chills.-In casting chilled rolls as in Specification 374,156, the mould has chills A<1>, A<2> for the journals of which the upper one is supported on snugs F, which are removed from or with the flask B, at a definite time after casting, to allow the chill A<1> to fall as the roll contracts.
Patent GB-1079321-A (GB)
Title: Improvements in or relating to means for maintaining and handling various objects in bulk
IPC: B66C1/18
Filed: 1965-02-15
Abstract: 1,079,321. Slings. J. SAUVARD. Feb. 15, 1965 [March 25, 1964], No. 6450/65. Heading B8H. Two groups of objects 1, 2, are lifted by pulling upwards on a loop 8 of a sling 3 comprising an endless band which passes round sides 4, 5, 6, 7 of group 1 and sides 9, 10, 11, 12 of group 2. A tube for engagement by a lifting member may be passed through the loop 8. A forked member 17, Fig. 5 (not shown), may be inserted in the loop 8 for engagement by a lifting fork 18. The member 17 may be replaced by a batten of rectangular cross. section. A safety net, Fig. 10 (not shown), may be provided. Figs. 13, 14 (not shown), illustrate a pivoted safety frame surrounding loads 40-42 which are supported by loops 43, 44. Figs. 15, 16 (not shown), illustrate a long load with two pairs of hinged safety arms.
Patent GB-525828-A (GB)
Title: Magnetic compass means for guiding military tanks and other armoured land vehicles
IPC: G01C17/00
Filed: 1939-03-01
Abstract: 525,828. Mounting magnetic compasses on armoured vehicles. SCHILOVSKY, P. March 1, 1939, No. 6675. [Class 79 (iii)] For the purpose of guiding military tanks and other armoured land vehicles by magnetic compasses the tank &c. is constructed so that there is in its interior a space or spaces each large enough to contain a sphere not less than about one foot diameter devoid of magnetic material, at the centre of which spheres compasses are located so that their indicators can be seen by the driver and/or other occupant of the vehicle, and pedestals or supports of non- magnetic material for supporting the compasses are secured to the tank body. Compasses with extra strong north-seeking couple are employed so that with dead beat or aperiodic damping their needles return to the meridian from 90 degrees displacement in about 2.5 to 3 seconds. In small tanks if the compass is located in front of the driver, the driver's seat is moved back 6 to 10 inches, the iron floor is supplemented by a non-iron pedestal and the guiding handles, levers and the like, if found to be temporarily entering the 6-inch radius sphere, are made of non-magnetic material. The magnetic compass may be brought to precision by compensation.
Patent GB-549536-A (GB)
Title: Improvements in and connected with induction regulators and their application
IPC: H01F29/12
Filed: 1941-05-26
Abstract: 549,536. Induction regulators; A.C. commutator motor control. SCHWARZ, B. May 26, 1941, Nos. 6750/41, 2960/42 and 3168/42. [Classes 35 and 38 (ii)] A single induction regulator has its primary winding P connected in series with its secondary winding S, the arrangement being such that the output voltage (taken, for example, from the connecting parts between the windings) may be resolved into a component of constant voltage and a component of variable voltage preferably of fixed phase position. In the vector diagram, Fig. 1a, 01 represents the supply voltage which is the vectorial sum of the voltages of the windings S and P represented respectively by 02 and 21 or 021 and 211 &c. according to the adjustment of the regulator. If the coils P and S are equal, the points 2, 21, 211 &c. will lie on a straight line and the output voltage will be represented by O2<SP>1</SP> &c. which may be resolved into the constant voltage 02 and the variable voltage 2, 21. If desired the constant voltage component can be varied or eliminated by applying a suitable voltage in series with the windings S, P (Figs. 2, 5, &c., not shown). If the coils P and S are not equal, the. points 2, 21 &c. will lie on a circle. The regulator is specially adapted for controlling a stator-fed A.C. commutator motor, the constant voltage component providing a magnetizing current in the commutator circuit for power factor compensation, and the variable voltage component serving to regulate the speed. Fig. 3 shows a simple arrangement, one only of the three phases being represented, and IR representing the induction regulator which is supplied from a transformer St, F, the primary of which viz. St, is the stator winding of the motor C. In modifications the regulator is fed directly from the supply and the output passes to the motor via a transformer. In another arrangement, Fig. 10, each winding P and S of the regulator has a secondary winding PS and SS and the secondary windings are connected in series with the motor. In modifications of this last form, Figs. 1a, 2a, 3a of the second Provisional Specification, (not shown), the stator circuit may also be varied to provide increasing or decreasing torque with varying speed. Fig. 1 (3168/42) shows an arrangement including a switch RS for reversing the motor. A primary winding PT connected directly to the line supplies the induction regulator IR by means of the secondary F and the reversing switch RS connects the motor to one or other of two tappings on this winding F. The result is that the voltage from the regulator has an extra voltage added to it and the resulting constant voltage component for the motor is positive or negative according to the particular tapping.
Patent GB-457871-A (GB)
Title: A device for atomizing liquids
IPC: B05B7/12
Filed: 1935-03-04
Abstract: 457,871. Spray-producers. MARCH- AND, M., 201, De Carpentierstraat, The Hague. March 4, 1935, No. 6818. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 3, 1935]. [Class 69 (iii)] Compressed air is supplied to a chamber 1 provided with a vent 3, and connected through a valved passage to a second chamber 8 from whence it passes to an atomizing nozzle 21. A rod 9 carries a valve 11 to close the opening to the passage 18, a buffer 14 to close the vent 3 and a packing 16 to close the tube 17. The rod 9 is moved into the operative position shown by pressure on the head 15. Air passes from the chamber 1 through the opening 12 to the chamber 8. On releasing the head 15, the passage 12 is closed and the passage 16 and vent 3 opened to release pressure in the vessel 8 and prevent undue pressure in the chamber 1. A modification is described in which the air chamber is mounted on a spray gun the trigger of which operates the valve rod 9 and also a needle valve to control the liquid.
Patent GB-905566-A (GB)
Title: Manufacture of semicrystalline ceramic bodies
IPC: C03C10/00
Filed: 1961-02-24
Abstract: 905,566. Ceramic glass bodies. CORNING GLASS WORKS. Feb. 24, 1961 [March 7, 1960 (2)], No. 6872/61. Class 56. In the heat treatment of a glass body to a semi-crystalline body, the resistance to attack by alkaline solutions is increased by carrying out the treatment in a controlled atmosphere comprising at least 25% by volume of water vapour or, alternatively, in a reducing atmosphere equivalent to 1-10% of excess combustibles therein until the temperature has reached 900-1000‹ C. and thereafter substituting therefor an oxidizing atmosphere and maintaining the oxidizing atmosphere during the final heating and the cooling to below about 1000‹ C. The process is particularly used in the heat-treatment of ceramic glass as in Specification 857,367 and of the composition in percentages by weight: SiO 2  70; Li 2 O 2.5; Al 2 O 3 , 18; TiO 2  4.5; MgO 3; ZnO 1, with up to 1 impurities, the glass being heated to about 800‹ C., held for 1 hour, heating to 1080-1175‹ C., held at 1080-1120‹ C. for 4 hours, at 1120-1175‹ C. for 2 hours and cooled. To produce the water vapour atmosphere, dry steam is passed under pressure into the heating kiln which is maintained throughout the heating and cooling. The reducing atmosphere is produced by passing a non-explosive mixture of nitrogen and hydrogen into the kiln, or, in gas-fired kilns, variation of the air supply gives first the reducing and then oxidizing atmosphere. Specifications 829,147 and 857,367 are referred to.
Patent GB-1249566-A (GB)
Title: Improvements in or relating to flexible hoses
Inventor: FOOTE JAMES CONWAY
IPC: F16L9/21
Filed: 1969-02-10
Abstract: 1,249,566. Hose. NORMALAIR-GARRETT Ltd. 6 Feb., 1970 [10 Feb., 1969], No. 7041/69. Heading F2P. A hose has an inside ply of flexible, inextensible material 22 and an impermeable outer ply 17 separated by a layer of foam 15, there being a flexible crushproof inner support 14 in the bore of the hose and end fittings 11, 12 attached to the inner ply 22 and having the outer ply 17 partially extending over them. As shown, the tube has an irregularly corrugated surface and the inner support 14 is a helical coil in the bore of the hose. Alternatively a flexible perforated tube also in the bore of the tube may be used. The foam 15 can be open or closed cells of polyurethane, the inner ply 22 of polyester fibre and the outer ply of a knitted polyester fibre coated with silicone rubber. In a method of manufacturing such a hose, Figs. 2-6B (not shown), the inner ply 22 is made integrally with the end fitting 12 to give assembly 16, a fabric cuff is fitted to one end of the inner support 14, which is then placed inside the inner ply 22 with the end fitting adjacent to the cuff, the second end fitting is secured to the inner ply 22 and the layers of foam 15 and outer ply 17 fitted, the latter being secured to the end fittings by heat and pressure. In one embodiment the spring 14 has one close coiled end and a cuff of polyester fibre 20 is secured to it using a diluted elastomeric adhesive by wrapping it over the coil when mounted on a mandrel 21. The end fitting 12 is made integrally with the inner ply 22 by sandwiching one end of the latter between layers of rubber 24, 25 built up on a pattern 23, the ribbon and inner ply's end are then subjected to heat and pressure by placing a mould around the covered pattern 23. The spring 14 with the cuff 20 is then inserted inside the inner ply 22 with the cuff 20 and end fitting 12 adjacent. End fitting 11 is then fitted to both the spring 14 and inner ply 22. A layer of polyurethane foam is wrapped to form a tube and joined to the ends of the inner ply by adhesive. The outer ply may be formed by skelping or convolutely winding a sheet of silicone rubber coated polyester fibre which is placed over the remainder of the hose by drawing the latter through it and sticking the outer ply 17 to the end fittings 11, 12.
Patent GB-1371462-A (GB)
Title: Apparatus for coating workpieces
IPC: H01J37/34
Filed: 1972-02-16
Abstract: 1371462 Sputtering apparatus P J CLARKE 16 Feb 1972 [18 Feb 1971] 7061/72 Heading C7F Sputtering apparatus comprises a base-plate 10 over which is fitted a bell jar Fig.1 (not shown), the base-plate having attached to it a hollow cathode shell 27. The anode 33 is carried on a conductive stem 34, and the cathode shell 27 is surrounded by a magnet 31. A ring 30 of material to be sputtered is provided on the cathode. The field created by the magnet has a linear central portion (shown by A) and non-linear end portions (shown dotted), and the ring 30 intercepts a non- linear end portion. The substrates have an induced bias or a bias may be applied by a lead 45, and they are carried by a continuously or intermittently rotatable plate.
Patent GB-356666-A (GB)
Title: Improved friction producing means for shock absorbers, door closing devices and the like
IPC: B60G13/04
Filed: 1930-03-04
Abstract: 356,666. Shock-absorbers. GLASSNER, K., 11, Vojtesska, and KORNFELD, F. L., 12, Safarikova, both in Prague. March 4, 1930, No. 7075. Convention date, Sept. 4, 1929. Void [Published under Sect. 91 of the Acts]. [Class 108 (iii).] Frictional vibration dampers of the one-way type for motor vehicle doorclosing devices &c. comprise frictional elements, one of which is wedged towards the other as the result of movement relatively to a member gripped between them. When the member 15 of the construction shown in Fig. 1 moves upwardly, the tapered end of the member 9 engages the roller 14 carried by the bracket 2 on the coacting member 1 and the upward movement of the member 15 is frictionally retarded. The member 9 may be held lightly in engagement by a spring 7. The effect may be varied by altering the inclination or shape of the wedging surfaces or two such surfaces may be provided on the member. The maximum wedging movement may be limited by the screw 11 engaging the bracket 2. An adjustable eccentric mav be used instead of the screw 11. In a modification, the members 1, 9, 15 are curved. In the modification shown in Fig. 11, two discs 1, 9 grip between them a third disc 15 during rotation in one direction, wedges 13 being used for this purpose in conjunction with the centre pin 27 and the cross-bar 4. The operating arms 45, 46 are connected respectively to the outer discs 1, 9 and the central disc 15 when applied to a motor vehicle. A similar construction may be used in door-closing apparatus. A double wedge may be used.
Patent GB-242858-A (GB)
Title: Improvements in apparatus for dusting or cleaning tinned plates
IPC: B24B29/00
Filed: 1925-03-17
Abstract: 242,858. Williams, H., Roberts, W., and James, L. March 17,1925. Reversing-gearing.-In a machine for cleaning tinned plates a shaft 1, Fig. 2, is driven in two directions by chain and toothed gearing from the main shaft b, one of the shafts 1 having a chain wheel g and a gear wheel h mounted thereon. The wheel g is provided with projections or teeth i and the wheel h with projections or teeth j, a clutch k being mounted on the shaft 1 and being adapted to engage the projections i or j, so that the shaft l can be driven in the forward or reverse directions. The clutch k is fixed in position on the shaft 1 by a set screw l. In a modification shown in Fig. 4, the clutch k is fixed to one side of the wheel h, the clutch engaging the projections i to give the direct drive of the rollers. For reversing the drive, the wheel h is reversed and put on the shaft, the wheel g then being loose on the shaft. In a further modification, Fig. 5, fast and loose pulleys 6, 7 are mounted on the shaft b and pulleys 8, 9 are keyed on the shaft 1, a belt 10 connecting one pair of the pulleys 6, 7 with the pulley 8 and a crossed belt 11 the other pair of pulleys 6, 7 with the pulley 9. To reverse the drive of the rollers, the belts 10, 11 are moved simultaneously by the forks 12 to the other pulleys 6, 7.
Patent GB-1494871-A (GB)
Title: Colour cathode ray tube envelope
IPC: H01J29/07
Filed: 1975-02-20
Abstract: 1494871 Colour television tubes ZENITH RADIO CORP 20 Feb 1975 [22 April 1974 28 Feb 1974] 7183/75 Heading H1D The flangeless, rectangular faceplate of a shadow-mask colour television tube has discrete referencing means extending from at least two perimetric regions of its inner surface, and together defining a set of faceplate reference surfaces which co-operate with corresponding reference surfaces in the interior of the funnel, whereby to determine the relative positions of the funnel and the faceplate when assembling the tube without the use of external sealing jigs. The funnel reference surfaces may be formed merely by those areas of the funnel which oppose the faceplate reference surfaces, or by flats, specially formed on the funnel surface, or, as shown, by the provision at the corners of the funnel of moulded notches 11, 13, 15, &c., into each of which notches fit corresponding sheet metal studs disposed one at each corner of the faceplate. The studs may, as shown in Fig. 5, be apertured to receive the support lugs of a shadow mask (Figs. 7 to 9, not shown) and may be of channel shape (Fig. 9, not shown) to facilitate this. In an embodiment providing only three reference surfaces (Figs. 1 to 3, not shown), two surfaces may be provided at one corner of the funnel, roughly following the funnel contour round the corner, the third surface being provided to one side of an adjacent corner.
Patent GB-398110-A (GB)
Title: Improvements in or relating to radiators for cooling liquids
IPC: F28F1/02
Filed: 1933-03-09
Abstract: 398,110. Radiators for cooling liquids. SOC. ANON. DES USINES CHAUSSON, 35, Rue Malakoff, Asnieres, France. March 9, 1933, No. 7213. Convention date, March 11, 1932. [Classes 29 and 64 (iii).] In a radiator for cooling liquids comprising rows 1, 2 .. of obliquely disposed flat tubes, the tubes of one row are in staggered relationship to the tubes of an adjacent row. The tubes are cross-connected by undulating horizontal webs 3.
Patent GB-1214582-A (GB)
Title: Process for preparing silica gel
IPC: C01B33/154
Filed: 1968-02-14
Abstract: 1,214,582. Silica gel. W. R. GRACE & CO. 14 Feb., 1968 [20 April, 1967], No. 7300/68. Heading C1A. Silica gel is produced by mixing a sodium silicate solution having an 5i0 2  content of 7À5-20% by wt., and a mineral acid solution of concentration 3À5-7À0% by wt. at 25-50 C., and pH 9À8-10À4; aging for 2-60 minutes; lowering the pH of the hydrogel to from 1À8- 3-0; aging for 5-300 minutes; raising the pH to at least 8; aging for ¢-4 hours, at 25-90 C.; and recovering the silica gel by separation, washing and drying. In a modification, the hydrogel slurry in the third aging step is aged for 2-5 hours, at pH 9À5-10À5 and 70-90C., and the gel then separated by spray-drying, washed, and dried. The lowering of pH may be effected using a mineral acid, e.g. sulphuric acid. The pH may be raised to at least 8 by means of aqueous ammonium hydroxide. The final drying may also be effected by spraydrying.
Patent GB-609335-A (GB)
Title: Improvements in or relating to coke oven structures
IPC: C10B29/08
Filed: 1946-03-11
Abstract: 609,335. Coke oven bracings. WOODALL-DUCKHAM (1920), Ltd., and DOBSON, F W. March 11, 1946, No. 7567. [Class 51 (ii)] External bracings for a coke oven battery include a series of buckstays 20 terminating immediately below the sole 6, each buckstay being associated by the spring pressed member 37, with a rigid girder framework anchored, as by bolts 17, to the bat tery foundation. The buckstays are forked at their lower ends and a crosspiece 33 carries the screw 34 of the pressure member 37, tension being adjusted by the nut 39. The lower portion of the battery is braced by a series of matresses or grids 47 extending betweer adjacent uprights 12 and comprising vertical girders 48, 49 and 50, and horizontal girders 51 and 52. Adjacent grids are attached to an upright 12 by means of U- shaped bolts 61, each arm of which has a yielding packing piece or spring anc an adjustable nut by which the pressure of the grid against the battery structure is adjusted. Specification 566,996 is referred to.