baber/WOPTO huggingface dataset:
Patent GB-1280392-A (GB)
Title: High-speed parallel binary adder
IPC: G06F7/50
Filed: 1970-03-04
Abstract: 1280392 Digital computers; parallel adders BURROUGHS CORP 4 March 1970 [22 July 1969] 10359/70 Heading G4A A parallel binary adder uses a carry lookahead system formed entirely of AND gates. This is stated to reduce operating speed. The augend and addend of 48 bits each are passed from respective registers 10, 12, to carry gating logic 16 and to adder logic 18 by clock pulses. Adder logic 18.-This comprises independent sub-adders 0 to 11 each of which receives 4 bits of the augend and addend and also the appropriate carry from the carry logic 16 to produce four bits of the sum, the whole sum passing to an output register 20 having a 48 bit sum and a carry C out. Each subadder is made up entirely of AND gates and sets 4 flip-flops in the register 20. Complement signals are provided from all the bits in registers 10, 12 for true and false logic to provide the carry and its complement respectively, and also complement clock pulses so that summing occurs between the clock pulses. Part of one subadder is shown in Fig. 7 where bits AA 4  and BB 4  are being added. The bits pass to an exclusive OR circuit 160 (made up of two AND gates) and the output passes to exclusive OR gate 162 which receives the external carry C from the logic 16 and a signal (A 1 #B 1 ) (A 2 #B 2 ) (A 3 #B 3 ) which determines whether the carry is appropriate to this bit of the sum. The adder also takes into account internal carries from lower stages within that subadder through gate 164. Carry logic 16.-This comprises three levels m, n, and p (Fig. 1) and a low order logic 22 which deals with carry from a previous calculation. Level m comprises 23 identical sections each receiving two bits from both addend and augend (Fig. 3, not shown) and comprising AND gates to produce true and false outputs. Stage n comprises eleven identical AND gate circuits (Fig. 4, not shown) and stage p (Fig. not shown) two AND gate circuits. The Low order logic 22 comprises AND gates and sends one bit direct to register 20, see Fig. 1.
Patent GB-1444560-A (GB)
Title: Hoses
IPC: F16L11/08
Filed: 1973-03-03
Abstract: 1444560 Flexible hoses DUNLOP Ltd 20 Feb 1974 [3 March 1973 16 June 1973] 10447/73 and 28727/73 Heading F2P A flexible hose having a co-axial helical supporting coil is reinforced by a structure which is disposed relative to the coil so as to span the gaps between the turns thereof and which comprises a thin supporting membrane of non- woven material which supports a layer of reinforcing material disposed adjacent a surface of the membrane, the non-woven membrane being formed from randomly orientated filaments, e.g. nylon filaments bonded together at their cross-over points. The membrane may be impregnated with polymeric material, e.g. natural or synthetic rubber. The thin supporting membrane may comprise a radially outer or inner portion of the hose. The reinforcement structure may be formed by winding at least one strip of non-woven material, e.g. of nylon filaments over the support coil and helically winding over this layer at least one strip of reinforcing material which may be either a plurality of reinforcing filaments or a woven material. The filaments may be in yarn or cord form and may be of nylon, cotton, rayon, polyester, polypropylene, glass carbon or steel and the woven fabric made from cotton, rayon, nylon, Terylene or polypropylene fibres. The windings may be bonded together by polymeric material (examples are given). Alternatively the reinforcement structure is a preformed compound strip disposed either radially inwardly or outwardly of the coil. The hose may be provided with a single helical coil or at least two helical coils of similar or different diameters and each coil may be embedded in a layer of polymeric material, e.g. natural rubber. In one embodiment a hose Fig. 1 comprises a helically wound inner support coil 10 of galvanized steel wire; a first reinforcement structure 11 formed by helically winding around coil 10 a strip comprising a plurality of filaments 12 and a non-woven support membrane 13; a second similar reinforcement structure 14 wound helically in the opposite sense to the layer 11 so that the filaments of both structures are adjacent and a second coil 15 wound over layers 11, 14 so that its coils lie between those of coil 10. In another embodiment Fig. 3 a heavier duty hose comprises a helically wound inner layer 100 of natural rubber; a first reinforcing structure 101 similar to structure 11, Fig. 1; a pair of helically wound coils 102, 103 of steel wire embedded within a mass of rubber 104; a reinforcing structure 105 similar to structure 101 and an outer covering layer 106.
Patent GB-1535664-A (GB)
Title: Iron removal from solutions of aluminium fluoride
IPC: C22B3/00
Filed: 1977-03-11
Abstract: 1535664 Purifying aluminium fluoride solutions FREEPORT MINERALS CO 11 March 1977 [11 May 1976] 10472/77 Heading C1A Iron values are recovered from aqueous solutions of aluminium fluoride by contacting the solution with an extractant which comprises a solution of a mixture of an alkyl-substituted monophenylphosphoric acid and an alkyl-substituted diphenylphosphoric acid in an inert organic solvent. The iron depleted aqueous solution obtained may then be treated to crystallize out aluminium trifluoride trihydrate, which may be dried and dehydrated and/or subjected to pyrolytic hydrolysis to obtain alumina and hydrogen fluoride.
Patent GB-427924-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B15/00
Filed: 1934-04-06
Abstract: 427,924. Sewing-machines. MOSTER, F., 1, K³mmelgasse, Pirmasens, Rheinpfalz, Germany. April 6, 1934, Nos. 10473 and 10474. Convention dates, April 6, 1933 and July 10, 1933. [Class 112] A work feed for marginal sewing comprises a sliding member d with a depending yoke g extending beneath the work and against which the work is pressed by a clamping lever f. The lever f is spring pressed or is connected to the driving linkage of the member d. The welt is led to the work feed by a guide i which carries a tongue to prevent the upturned welt lip b folding over at the stitching point.
Patent GB-166357-A (GB)
Title: Improvements in maize-harvesting machines
IPC: A01D45/02
Filed: 1920-04-15
Abstract: 166,357. Sclanders, D. G., and Sparks, M. S. April 15, 1920. Maize - harvesters. - A maizeharvester is provided with a number of doubleended rotary blades 13 for stripping the ears from the standing stalks. The blades 13, which are curved at each end as shown in Fig. 2, are mounted on a shaft 12 driven through a clutch from a groundwheel 5. Guides 19 which extend from the shaft 12 to a conveyer at the rear of the serve to prevent lateral distortion of the blades and form a means whereby the ears may travel from. the blades to the conveyer. An elevator 38 carries the ears from the conveyer to a hopper 44, whence they fall into sacks supported on sack-holders 45. A deflecting- plate 46 is fitted to permit the ears to be deflected into another sack while a filled sack is being substituted by an empty one. A blower 47 driven from the shaft 12 discharges a blast of air through a shoot 48 to remove fine particles carried up by the elevator 38. A hood 52 encloses the blades 13.
Patent GB-105493-A (GB)
IPC: G01G23/00
Abstract: 105,493. Avery, W. & T., and Brown, A. W. Aug. 10, 1916. Steelyard apparatus.-The balance weight 3 of a steelyard 1 is adjusted within its usual box 2 by rotating a spirally grooved disk 4 pivoted to the box and engaging a pin 9 on the balance weight. In a modification, the disk 4 is pivoted on the balance weight.
Patent GB-1525774-A (GB)
Title: Thermally stable high nitrile resins and method for producing the same
IPC: C08F279/02
Filed: 1976-03-17
Abstract: 1525774 Stabilizing acrylonitrile copolymers STANDARD OIL CO 17 March 1976 [28 April 1975] 10666/76 Heading C3K Polymers of a major proportion of an unsaturated nitrile, preferably acrylonitrile, with a minor proportion of an unsaturated comonomer are stabilized against thermal discoloration with 0À1-1À5 parts per 100 parts of copolymer of at least one ester where R 7  is a hydrocarbon group, preferably containing 1-20 C atoms. The copolymer may be prepared by polymerization in an aqueous medium, optionally in the presence of a preformed diene rubber.
Patent GB-1531791-A (GB)
Title: Transducers
IPC: H04R9/04
Filed: 1976-03-17
Abstract: 1531791 Moving coil transducers RANK ORGANISATION Ltd 2 March 19777 [17 March 1976] 10674/76 Heading H4J A "tweeter" loudspeaker or other electro-acoustic transducer (Fig. 2) comprises a dome diaphragm 20 having a coil 18 extending into an annular air gap 17 of a magnetic circuit comprising a magnet 12. An annular recess 23 surrounds the air gap 17. The dome diaphragm 2 has a radial flange 21 whose rim is circular and concentric with the dome. The flange 21 is located by a cylindrical element 29 engaging in the recess 23. Element 29 is preferably an axial flange on a mounting ring 27 having a further axial flange 30 at least partly surrounding the dome and influencing the frequency response. The mounting ring 27 is clamped in position by a mounting plate 31 having a locating shoulder 33. A cardboard sealing ring 25 has an outer diameter substantially the same as that of the radial flange 21 and its inner diameter is greater than the outer diameter of a corrugated part 22 of the flange 21.
Patent GB-331583-A (GB)
Title: Air heating installations for furnaces
IPC: F23M20/00
Filed: 1929-04-06
Abstract: 331,583. Howden & Co., Ltd., J., and Hume, J. H. April 6, 1929. Regenerators.-An air heating installation for boiler furnaces of the kind comprising nests of tubes or corrugated plates comprises a casing divided by partitions into sections having baffles whereby one supply of air passes through at least one air pass of a section and is delivered to the furnace as heated forced draught secondary air and another supply of air passes through at least two passes of a heater section and is delivered as heated primary air. Fig. 1 shows a tubular air heater for a pulverized-fuel furnace divided by partitions 6 into wing sections 7 for secondary air and a central section 8 for primary air. Air is supplied by a fan to the inlets 10 of the wing sections and is caused to take a tortuous path by baffles 9 over the waste gas tubes 3 and is finally delivered as secondary air to the furnace through the legs 12. Air enters the primary air heater from the atmosphere through the inlet 16 and is caused by a baffle 14 to pass back and forth over the tubes 3 before leaving by the outlet 17 connected to the pulverized fuel fan. The inlet 16 may be supplied by the fan connected to the air inlets 10. When primary air is required at a higher temperature than the secondary air the primary air heater 8 is divided by baffles into four passes and receives air from the atmosphere or from one of the passes of the secondary air heaters 7. Fig. 6 shows an air heater for furnaces having grates adapted to supply air at a higher temperature above the grate than below. The heater is of the corrugated plate type and comprises two sections A. Air is supplied to a chamber 26 of each section and is divided into two independent streams. One stream for delivery below the firebars passes as shown by arrows through the passages 35 - - 38 and 24 and the other stream for delivery above the firebars through passages 27 - - 34 and 23. A slightly modified arrangement is employed for boiler furnaces employing pulverized fuel in which the primary air for the pulverizer is required at the highest possible temperature. The secondary air makes four passes of the corrugated plate heater and then divides into two parts, one part passes direct to the furnace and the 'remainder passes through two subsidiary passes and is further heated for use as primary air. Where space is limited, one pass only of each heater section is used for secondary air, while four subsidiary passes at the bottom of each section are employed for the primary air supplied to the pulverizer. Various other arrangements of primary and secondary air passages in the heater sections are also described and illustrated.
Patent GB-569782-A (GB)
Title: Improvement in vibratory electric motor
IPC: H02K33/02
Filed: 1943-07-02
Abstract: 569,782. Reciprocating motors. WEYANDT, C. S. July 2, 1943, No. 10790. Convention date, July 17, 1942. [Class 35] The armature of a vibratory motor is secured to the centre of leaf springs, the ends of which are received in open-ended slots on the frame, removable means being provided to close the ends of the slots and clamp the ends of the springs against the bases of the slot. In the form shown, the frame 2, 3 carries an electromagnet 31 co-operating with an armature 28 secured to the centre of a pack of springs 7, the ends of which are clamped in slots in frames 23 by bars 8, 9 urged by bolts 11 against filling pieces 12, 13 in the slot mouths. The winding 32 may be energized through a rectifier and the motor may vibrate a conveyer trough.
Patent GB-693729-A (GB)
Title: Improvements in helicopter flight control systems instrument
IPC: G05D1/08
Filed: 1951-05-08
Abstract: 693,729. Electric indicating systems. BELL AIRCRAFT CORPORATION. May 8, 1951 [June 8, 1950], No. 10804/51. Class 40 (i) [Also in Group XXXIII] A helicopter flight instrument for indicating the inclination of the rotor disc to the horizon is characterized by a rotor signal generator mechanically driven in accordance with the tilt of the rotor with respect to the rotor drive shaft, and a gyroscope for establishing a reference plane independent of movements of the fuselage, a signal being generated in accordance with tilt of the fuselage with respect to the reference plane and combined with the rotor signal to determine the tilt of the rotor with respect to the reference plane independently of movements of the fuselage. In the arrangement shown two indicators 100, 102 are employed for showing the longitudinal and lateral inclinations of the rotor respectively. A Selsyn generator 28 is mounted at the top of the drive shaft 10, the rotor being oscillated in accordance with tilting of a lifting blade 12 by a link 29 connected to one of the universal mounting stirrups 16. The Selsyn generator comprises a rotor or primary winding 30 and a stator or secondary winding 32 with three terminals, one of which is connected to one of the stator terminals and to earth through a slip-ring on the shaft 10, one of the other terminals being free, while the other is connected through a potentiometer 34 to earth. Signals proportional to fuselage pitch and roll derived from potentiometers 40, 42 of a standard type horizon gyroscope 38 are combined with the signal from the Selsyn potentiometer 34, and fed to the indicators 100, 102 through circuits incorporating amplifiers 50, 52, phase detectors 54, 56 and synchronous relays 60, 61. The latter are operated by conducting segments on a slip-ring 62, Fig. 2 (not shown), on the shaft 10, these segments being angularly disposed at 90 degrees and arranged so that the relay 60 is closed when the rotor blade 12 is in the longitudinal or fore-and-aft position, while the relay 61 is closed when the blade is disposed transversely at right angles to the fore- and-aft position. Smoothing condensers 104, 106 are provided between the relays and the indicators 100, 102.
Patent GB-655721-A (GB)
Title: Improvements relating to laundry washing machines
Inventor: MOORE JOHN RICHARDSON
IPC: D06F37/04
Filed: 1948-04-20
Abstract: <PICT:0655721/III/1> In a dry-cleaning machine having a stationary casing 1 enclosing an oscillatory cage or drum 2, and having in the lower part of the cage a device 3 for lifting the contained goods out of the liquid as oscillation begins, and in the upper part of the cage a reaction member 6 against which the goods are squeezed as oscillation terminates, the reaction member is counter-balanced by a pendulous counter-weight 7 outside the casing so that there is an initially low squeezing pressure as the goods first contact the reaction member, which pressure gradually increases to a maximum as the reaction member and counter-weight are displaced from the position of equilibrium.  The reaction member 6 is normally held in a vertical position by the counter-weight 7, and both are mounted on a shaft 8 which rotates in trunnions at the ends of the cage 2.  The device 3 comprises a longitudinal partition dividing the cage into two separate washing spaces into each of which one half of the load is placed.  The lifting device 3 and the reaction member 6 may have perforated walls as well as the cage 2.  The oscillation of the cage 2 is produced by means of a pair of cranks connected by a rigid rod, one crank being of longer stroke than the other.  The amplitude of the oscillation is normally not less than 300 degrees, and not more than 540 degrees.  Where this angle is 340 degrees or more the motion of one crank is doubled by a two-to-one gear.  The machine is preferably electrically driven, the electric drive being imparted to the rotary cage through a fluid clutch.  Doors 4, 5 are provided along both sides of the cage 2 and casing 1.  The Provisional Specification describes also a machine in which the reaction member and lifter move towards and away from each other so that the squeezing action takes place in a horizontal position, and the counter-weight may be replaced by spring means.
Patent GB-711801-A (GB)
Title: Improvements in shaped charges for use inside well casings
IPC: F42B1/02
Filed: 1951-05-09
Abstract: 711,801. Blasting charges. SOC. DE PROSPECTION ELECTRIQUE (PROCEDES SCHLUMBERGER), May 9, 1951 [May 11, 1950], No. 10896/51. Addition to 694,144. Class 9(1) Shaped charge as described in the parent Specification for use in apparatus for piercing welllinings has a mass 12 of hard rubber or ebonite of cellular form placed in the cavity of the liner. Other cellular material of the same physical structure may be used.
Patent GB-790966-A (GB)
Title: Improvements in and relating to enzymes
IPC: C12N9/64
Filed: 1956-04-10
Abstract: A pancreatic proteinase, designated "Pankrin," useful for dispersing tissue cells for a tissue culture medium, is characterized analytically by being incapable of clotting blood plasma, clotting milk and having a protealyric activity on urea-denatured hemoglobin and acetyl-l-kyrosine ethyl ester substrates such that the ratio of the hemoglobin to acetyl-l-kyrosine ethyl ester activity is at least 150.  It is also characterized chemically in that it is soluble in 60 per cent ethyl or methyl alcohol at 25 DEG  C. and maintains a protcolytic activity in an aqueous solution of pH 4.7 at a temperature of 25 DEG  C. for eight hours, or for two months at a temperature of 2 DEG  to 3 DEG  C. at a pH of 7.4 or 4.7.  Pankrin is derived from mammalian pancreas and is produced by subjecting a crude aqueous extract of pancreatic tissue containing also an inorganic salt such as sodium chloride and duodenal tissue to treatment with a weak cation exchange resin, e.g. XE-97 or IRC-50.  The proteinase may be adsorbed on to the resin at a pH of 4.5 to 5.0 and at an ionic strenght of less than 0.4, with optimum absorption at a pH 4.7 and an ionic strength of 0.05.  The proteinase may be eluted from the resin with an aqueous eluant at a pH 4.5 to 5.0 and an ionic strength greater than 0.4, with better results at pH 4.7 and an ionic strength of 1.2.  The examples illustrate the use of 2M sodium acetate-acetic acid buffer solution as the eluent.  The eluted proteinase is further purified by fractional precipitation at substantially complete saturation with ammonium sulphate, i.e. the enzyme is insoluble at an ammonium sulphate saturation of more than 0.8, or by fractionation with alcohol, e.g. ethanol or methanol at at least 65 per cent concentration at -5 DEG  C.  The precipitate is separated by centrifuging and filtration, and then dialysed and, if desired, dehydrated by lyophilization.ALSO:A method of dispersing tissue cells in microorganism cultures such as tissue degenerative viruses comprises the addition of a protealytic enzyme designated "Pankrin" to the tissue cultures. Pankrin is characterized by its ability to clot milk, its inability to clot blood plasma and by having a protealytic activity on urea-denatured hemoglobin and actyl-l-tyrosine ethyl ether substrates such that the ratio of its hemoglobin to acetyl-l-tyrosine ethyl ester activity is at least 150.
Patent GB-109498-A (GB)
IPC: F41C27/06
Abstract: 109,498. Viven, J., and Bessiere, G. Sept. 26, 1916. Bomb-throwing, guns adapted for.-Consists in adapting small-arms barrels to discharge bombs, by arranging one or more super-calibre barrels 4 on one or both sides of the axis of the ordinary barrel 1. The barrels 4 which receive short range projectiles 5 communicate by conduits 4<a> with a tube placed over the muzzle end of the ordinary barrel 1 from which the usual projectile is fired. An additional super-calibre barrel may be arranged in line with the ordinary barrel, in which case blank ammunition is employed.
Patent GB-376813-A (GB)
Title: Improvements in and relating to refrigeration apparatus
IPC: F25D7/00
Filed: 1931-04-14
Abstract: 376,813. Refrigerators. FREEBORN, A. G., Arawa, Buxton Lane, Caterham, Surrey. April 14, 1931, No. 10963. [Class 29.] An evaporatively - cooled refrigerator comprises an earthenware or like porous chamber 5 the top of which forms a reservoir for water &c. which percolates through the walls of the chamber and is evaporated by a current of air forced through the space between the chamber and its wood or metal casing 8 by a fan. The fan may be supported by a water trough 12 secured to the casing or it may be attached directly to the casing. Specification 218,838, [Class 29, Cooling &c.], is referred to.
Patent GB-1475655-A (GB)
Title: Foamable polyester resin compositions foamed compositions obtained therefrom articles comprising these foamed compo sitions and a method of preparing these articles
IPC: C08J9/34
Filed: 1975-03-17
Abstract: 1475655 Foamable polyester resin compositions and foams thereof GOODYEAR TIRE & RUBBER CO 17 March 1975 [8 April 1974] 11013/75 Heading C3C A foamable thermoplastic mouldable composition comprises (a) 100 parts by wt. of one or more thermoplastic polyester resins of m.p. above 149 C., (b) 0À05-15 parts by wt. of a lubricating agent which is an ester of a C 10-27  organic acid or an alkali or alkaline earth metal salt of a C 10-25  organic acid, (c) 0.05-15 parts by wt. of a foaming agent which decomposes, and releases a gas which does not react chemically with the resin, at a temperature above the m.p. of the resin and (d) 2-45 parts, by wt. of a reinforcing agent which is a fibre of glass, potassium titanate, asbestos, aromatic polyamide fibres or graphite. Foams are made by heating the above compositions to 400- 600 F. In the Examples (7-9) poly(tetramethylene terephthalate) was mixed with 5- phenyltetrazole, lithium stearate and glass fibres in the melt and the mixtures were injection moulded and foamed to produce a porous material having a solid skin.