baber/WOPTO huggingface dataset:
Patent GB-1303274-A (GB)
IPC: G05B11/42
Filed: 1970-03-03
Abstract: 1303274 Automatic control SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM) 3 March 1970 [3 March 1969] 10220/70 Heading G3R In a closed loop automatic control system for a process, the difference between a control signal (desired value) and a signal corresponding to the actual value of a process variable is applied through two cascaded groups of control elements which add an integral component and correct the variable, the final correction signal being operated on by a transfer function which is the product of a transfer function of the said first group and the transfer function of the process, and the correction output signal of the system being fed back to a point downstream of the first group of control elements via prediction elements which provide a prediction signal equal to the difference between the output signal operated upon by a circuit having a transfer function H and the output signal operated upon by a delay circuit having a transfer function F, the delay introduced equalling that of the process. In Fig.4, a signal 2 dependent of the magnitude of a process variable is compared with a signal 1 representing its desired value so that any error is applied through amplifiers 16, 18 and added to an integral component developed at 20. The resultant signal is then applied through an amplifier 26 to produce at 6 a signal which controls the process to restore the variable to its disired value. A signal dependent on the final control signal at 6 is fed back through an element 21, in this case an integrator, directly and through a delay unit 23 to a subtracter 22 and thence to a subtracter 24 in the forward control circuit and which subtracts the output of subtracter 22 from the output of summator 17. The transfer function of element 21 is made equal to the product of the transfer function corresponding to the time constant of the process and the transfer function of the elements of the forward control circuit upstream of subtracter 24. The delay of unit 23 is made equal to the dead time of the process. Gain controls 15, 19, 25 e.g. potentiometers and integrator controls (not shown) facilitate appropriate setting of the transfer functions. Modifications in which a differential component is added, the integral component is added on the downstream side of point 24, and the transfer function of element 21 is unity, are described. Digital forms of non-saturating integrator and delay unit coupled to the forward control circuit through digital/analogue converters are described. Automatic adjustment of the transfer functions in dependence on measurements of process characteristics is referred to.
Patent GB-138504-A (GB)
Title: Improvements in or relating to domestic hot and cold water supply apparatus
IPC: F24H1/18
Filed: 1919-04-24
Abstract: 138,504. Dyer, J. H. April 24, 1919. Heating water.-In a domestic system, the hotwater cistern a is horizontal and cylindrical, and the cold-water cistern 6 is rectangular and arranged saddle-wise on the former, the whole being mounted on legs c. The cistern a may be corrugated or beaded as at a<2> to increase its strength, and one or both may be covered with wood lagging.
Patent GB-243305-A (GB)
Title: Process for moulding small articles such as plugs or bridges for teeth, and devices for carrying out the process
IPC: A61C13/00
Filed: 1925-04-21
Abstract: 243,305. Jacobsen, O. Nov. 24, 1924, [Convention date]. Moulding processes; flasks; moulders' tools.- In a process for moulding small articles such as dental plugs a selfhardening mould-forming mass is rendered non- porous by subjecting it to pressure before hardening. In the apparatus shown in Fig. 1 a wax model 6 of a tooth-cavity is attached to a steel pin 7 and embedded in gypsum 5 in a container 3. The container is subjected to pressure before the gypsum hardens by a piston 1 and felt plug 2, moisture escaping through a filter 26 and holes 25. A hole in the bottom of the container allows the model to move downwards without distortion. In moulding a dental bridge a number of pins 7 are secured in parallelism to the model by a tool 12, Fig. 2, provided with sides 11 and aligned holes 13, and an oval flask reinforced by a jacket is employed. Apparatus is described for moulding dental plates.
Patent GB-487622-A (GB)
Title: High frequency electric cable and process of manufacturing the same
IPC: H01B13/06
Filed: 1937-04-12
Abstract: 487,622. Cables. FINSKA KABELFABRIKEN AKTIEBOLAG. April 12, 1937, No. 10409. Convention date, Dec. 5, 1936. [Class 36] A high-frequency cable comprises conductors 5, 6, Fig. 4, stranded together about an insulating strip 1 which is formed along its edges with staggered incisions or notches 2, Fig. 1, extending beyond the centre line of the strip so that during stranding the conductors enter certain of the incisions or notches and are supported therein. To prevent tearing of the strip the incisions or notches preferably terminate in perforations 3. The conductors may be segmental in cross-section. An outer conductor or sheath, over which may be applied armouring, completes the cable. In the manufacture of the cable, the conductors 5, 6 and the notched strip 1 are drawn from bobbins mounted on a flyer 8 by a capstan 10, Fig. 2, through a die 9 at which stranding takes place due to rotation of the flyer.
Patent GB-290802-A (GB)
Title: An improved tyre for attachment to the wheels of road vehicles the existing wheels whereof are steel shod
IPC: B60C7/28
Filed: 1927-04-19
Abstract: 290,802. Nicholson, F. April 19, 1927. Tyres, non-elastic.-Steel-shod wheels are provided with a detachable rubber tyre consisting of a plurality of sections 6 preferably vucanized on a canvas foundation 7 and clamped to the wheels 5 by means of segmental tie-rods 9, 11 having left and right hand threaded ends engaged by nuts 10. The tie-rods preferably pass through eyes 8a formed in wires bedded in the rubber.
Patent GB-1430031-A (GB)
Title: Polychloroprene mixture
IPC: C08L7/00
Filed: 1974-03-08
Abstract: 1430031 Blends of chloroprene polymers BAYER AG 8 March 1974 [9 March 1973] 10465/74 Heading C3P Blends of chloroprene polymers comprise (A) 90-20 parts by weight of at least one benzenesoluble chloroprene polymer having a Mooney viscosity ML-4<SP>1</SP> at 100 C. of 30-100, and (B) 10-80 parts by weight of at least crosslinked benzene-insoluble chloroprene polymer having a Mooney viscosity ML-4<SP>1</SP> at 100 C. of 30-75, said cross-linking being introduced both by the presence of 1-10 wt. per cent of a copolymerizable monomer containing at least two ethylenic bonds and by subjecting the polymer to high energy radiation, e.g. gamma-radiation or high speed electrons. In examples (B) is a copolymer of chloroprene with ethylene glycol dimethacrylate. The polymer mixtures may be conventionally compounded and vulcanized.
Patent GB-599199-A (GB)
Title: Improvements in method and apparatus for making fine glass fibres
IPC: C03B37/065
Filed: 1945-04-26
Abstract: 599,199. Glass fibres. THURSTON, A. P. April 26, 1945, No. 10488. Convention date, April 27, 1944. [Class 56] The process for forming fine glass fibres, as in Specification 590,258, by feeding attenuated filaments 23 into a high-speed, high-temperature blast produced as in that Specification, is modified in that the direction of feed is at substantially a right angle to the blast. In the form shown, the filaments pass along grooves in a guide 27. In a modification, the filaments pass through horizontal tubes, the ends of which are bent upwardly so as to feed the filaments at a right angle to the horizontallydirected blast and in another modification filaments of different diameters may be fed. at a right angle, simultaneously into the blast.
Patent GB-1362231-A (GB)
Title: Electric furnace steelmaking method and apparatus
IPC: C21C5/52
Filed: 1971-04-21
Abstract: 1362231 Electric steelmaking BRITISH STEEL CORP 20 April 1972 [21 April 1971] 10558/71 Heading C7D [Also in Division H5] Molten or particulate metal is continuously dispensed on to the charge in a steelmaking furnace, through the nozzle 9 on the tip of a tubular non-consumable electrode 3, an arc 12 being sustained in the metal flowing between the nozzle 9 and the charge 6. The electrode 3 shown is for use with molten steel 10, which is continually topped up, and comprises a graphite sleeve 7 between an inner and outer refractory casing 8. The sleeve 7 is connected to a supply and via a conductive path in the inner refractory casing 8 to the molten metal 10. In operation liquid metal is introduced to electrode 3, power is switched on, and as the jet 11 of molten metal issues from the nozzle an arc 12 is struck, melting the charge beneath. The molten metal supplied to the electrode merely helps to sustain the arc and does not appreciably contribute to the charge. The size of the nozzle orifice and the flow-rate are such selected that the arc root is just below the nozzle 9 and does not damage it. For use with particulate metal, which may be in the form of steel balls or pre-reduced iron pellets the electrode is made of metal and has a refractory nozzle. A graphite starting electrode which is movable in the nozzle for initiating arcing is also used to regulate flow of the particulate metal. In this arrangement the particulate metal may constitute the major or entire part of the charge. This arrangement may be used for vacuum arc remelting. A reducing gas may be passed through the electrode to prevent oxidation of the particulate material. Starting may be effected by the use of a fluid seeded with a compound which is  ionized at the subsisting temperature, as in Specification 1334116. Gaseous or liquid fuel may supply heat to the furnace.
Patent GB-1055206-A (GB)
Title: Improvements relating to fluid actuators
IPC: F15B15/08
Filed: 1964-10-19
Abstract: 1,055,206. Hydraulic or pneumatic motors. FLO-TORK Inc. Oct.19, 1964 [Oct.23, 1963], No. 10597/66. Divided out of 1, 055, 205. Headings F1A, F1P and F1S. The subject matter of this Specification is identical with that described in Specification 1, 055, 205, but the claims are concerned with the split construction of the motor housing.
Patent GB-1524744-A (GB)
Title: Safety footwear
IPC: A43C13/14
Filed: 1976-03-17
Abstract: 1524744 Footwear protectors RED WING SHOE CO INC 17 March 1976 [22 Oct 1975] 10632/76 Heading A3B An article of safety footwear having an integral toe protector 15, further includes a scuff-resistant toe protector 12 secured to the exterior thereof. The scuff-resistant protecter may be hingedly connected to a metatarsul protecter 13. Preferably the protector parts are formed of metal or impact-resistant plastics and are connected via a leather hinge 14 riveted to respective adjacent ends of the parts. The toe protecter may be riveted to an existing toe cap and the metatarsal protecter is preferably lined with padding. An alternative embodiment differs in that hinge 14 is not doubled back as shown but lies with both ends visibly riveted to respective adjacent ends of the parts.
Patent GB-1170900-A (GB)
Title: Display Device.
IPC: A47F3/08
Filed: 1968-03-05
Abstract: 1,170,900. Toy railway system. E.I.I. SON ROCKSTROM and J. J. B. GRUNWALD. 5 March, 1968 [23 March, 1967; 14 Sept., 1967], No. 10647/68. Heading A6S. [Also in Division G5] Goods may be displayed on a platform 24 rotatable by a motor 20 and mounted on a carriage 14; a motor 16 can drive the carriage 14 along rail means I associated with means 21 for supplying electricity to the motors; and a programmer 33 can supply electricity to the motors intermittently in a predetermined pattern. As described, a plurality of such carriages 2 run on a closed track in a shop window, and they queue up behind a screen 5 (on which images may be projected) and are released at fixed intervals to emerge from the screen, Fig. 1. Buffers 25, 26 on each carriage actuate switches to stop its motion if they strike an object; they may be replaced by photocell means. Each carriage runs on wheels 15 and platform 24 is rotated via wheels 18. The programmer may be controlled by clockwork, punched cards, remote signals, &c., but preferably comprises four timing units in cascade (Fig. 7, not shown), controlled by electronic switches, and effective to start, stop, reverse and stop motor 16 in that order; a similar programmer may control platform motor 20. Behind the screen, sections of the rails are electrically isolatable from each other by a projection 34 on the carriage striking a switch 35, see Figs. 8, 9 (not shown) thus bringing a following carriage to a halt in the queue; but means 4 eventually shorts out switch 35, setting a carriage in motion again. A tape recorder emits music or commentary, and the display goods are spotlighted.
Patent GB-330342-A (GB)
Title: Improvements in vacuum-jacketed vessels for storing ice cream or the like
IPC: A47J41/00
Filed: 1930-02-06
Abstract: 330,342. Ripley, J. T. Feb. 6, 1930. No Patent granted (Sealing fee not paid). Cold - retaining vessels. - A vacuumjacketed vessel for storing ice cream &c. comprises vessels 1, 2 of stainless steel &c. the space between which is closed by a plug 3 of " Bakelite " which forms a bearing for a vacuous stopper of stainless steel faced with " Bakedite." The vessel is enclosed in a casing packed with cork 8 and, for trans, port purposes, the whole may be enclosed in a cover packed with asbestos 9.
Patent GB-850573-A (GB)
Title: Improvements in or relating to electronic organs
IPC: G10H1/32
Filed: 1959-03-26
Abstract: 850,573. Electrophonic musical instruments. TUCK, K. E. March 26, 1959, No. 10717/59. Addition to 818,096. Class 88 (2). In a modification of the console electrophonic organ described in parent Specification and comprising a centre section 10 detaehably supported between two end sections 11 (not shown) and 12, a screw fixing device consists of a fixed element 19 on the centre section 10 and a rotatable element 23 which passes through the end section so that it may be screwed and unscrewed by means of its head 25 on the outer wall of the end section. A hook plate 17 and studs 26 on the centre section engage respectively a horizontal rod 22 and holes 27 in the end section. Electrical connections are made through a multi-pin plug 32 and a socket 33 and are so arranged that the two end sections may be interchanged in order to reverse the direction; of the loudspeakers contained therein.
Patent GB-1209913-A (GB)
Title: Electric arc-welding
Inventor: BOUGHTON PETER
IPC: B23K9/09
Filed: 1967-03-07
Abstract: 1,209,913. Supply systems for arc welding apparatus. BRITISH OXYGEN CO. Ltd. 28 Feb., 1968 [7 March, 1967], No. 10741/67. Heading H2H. Short-circuit, consumable electrode arc welding apparatus is provided with means to prevent weld splatter, such means being in the form of circuit elements which function to cause the weld current to increase when a short circuit of the arc occurs and a decrease in the weld current when the short circuit is broken. A consumable welding electrode 8 and workpiece 14 is fed from a transformer/rectifier combination 2 by way of an inductor L which is shunted by a diode Z. During a welding operation the diode Z will be biased " ON " or " OFF " by the back EMF generated by the inductor L, the operational effect of which is to cause the welding current to have a larger value when the arc is shortcircuited than the value when the arc is present. Furthermore the rise and fall of the welding current occurs at a faster rate. Numerous other embodiments are described wherein the inductor is tapped, the diode is connected across a part only of the inductor, a saturable reactor is connected in series with the inductor, the output of the combination 2 is shunted by a capacitor or a battery, the inductor is shunted by two diodes in series and lastly, in an A.C. arc welding system, a pair of inductors L are used each shunted by a diode the polarities of which are reversed.
Patent GB-211372-A (GB)
Title: Appliance for playing a ball game
IPC: A63B65/12
Filed: 1923-04-20
Abstract: 211,372. Bench, T. C., and Koff, J. April 20, 1923. Projecting and catching appliances.-An appliance for playing a ball game comprises two legs 1 pivoted together by a pin 5 passing through overlapping lugs 6 projecting from the legs, and a net 9 attached to loops 3 at the outer ends of the legs. Each leg is formed from a single piece of wire, and has an extension 2 for use as a handle. The legs are normally held together by a spring coiled round the pivot 5. A ball 11 may be projected from the net by squeezing the handles 2 together.
Patent GB-275701-A (GB)
Title: Improvements in or relating to the feeding of coal or other substances
IPC: F27D99/00
Filed: 1926-04-24
Abstract: 275,701. Fawcett, Ltd., T. C., Fawcett, D. L., and Bottomley, A. E. April 24, 1926. Charging.-In apparatus for feeding coal and other material, particularly adapted for supplying fuel to top-fired kilns, of the kind comprising a hopper a from which the fuel is fed to a vertical pipe a<1> by a. horizontal worm e, the latter is rotated alternately in the feeding and reverse directions to prevent bridging or binding in the hopper. The driving-gear comprises a toothed wheel g adapted to be rotated in the forward and reverse directions respectively by pawls h, i carried by a lever f which is loosely mounted on the worm-shaft e<1> and oscillated by any suitable means. The extent to which the worm is rotated in each direction is determined by shields h<1>, i<1> respectively which are carried by arms h<2>, i<2> and adjustable by thumb-screws h<3>, i<3>, the shields being so set that the rotation in the feeding direction is sufficiently in excess of that in the reverse direction to supply the required amount of fuel to the pipe a<1>. The latter, together with the legs c, serves to support the apparatus on the top of the kiln and is formed with a tapered lower end a<2> to engage in the feed-hole b. The edge of the worm thread may be serrated and the inner wall of the casing d is formed with helical ribs c<3>. The outer end of the casing d is closed by a perforated disc which serves to pulverize the fuel and, according to the Provisional Specification, a second perforated disc or cutter, carried on the end of the worm-shaft, is provided on the outer side of and close to the disc j.
Patent GB-1500622-A (GB)
Title: Centrifugal separators
IPC: B01L7/00
Filed: 1975-03-14
Abstract: 1500622 Controlling temperature in centrifuges WESTFALIA SEPARATOR AG 14 March 1975 [14 May 1974] 10844/75 Heading B2P In a centrifuge means for controlling the temperature of a fluid mixture being centrifuged or one of its components comprises an element 3 fitted in the rotatable drum 1 of the centrifuge and supported on several supports 4 on the drum shell 5 and forming with the latter at least one duct for a temperature control medium, the duct being sealed off from the separating chamber 25 of the drum and communicating with a calibrated bore 11 extending through the drum shell and directed towards a cooling jacket 12 surrounding the drum and mounted in a stationary housing 2 surrounding the drum, and an inlet 7 and an outlet 16 for the control medium communicating with the duct and connected to each other via a delivery mechanism 17. The element 3 is supported on the drum 5 by a plurality of ribs 4 disposed parallel to the drum axis so that a plurality of ducts are formed between the element and the shell. The ducts are interconnected by means of an annular groove 6 from which the bore 11 extends radially outwardly. The temperature control medium is supplied through an inlet pipe 7 to a feed channel 8 and flows from the latter through passages 9, 10 to the ducts behind the element 3. The jacket 12 is cooled by means of a cooling coil 13 provided with an inlet 14 and an outlet 15 for cooling medium. Seals 23, 24 between the element 3 and the drum 1 isolate the ducts from the separating chamber 25. The inlet and outlet pipes 7, 16 are interconnected via a pump 17, a container 18 and three-way valves 19, 20. When coolant is supplied as temperature control medium it is sprayed, after traversing the ducts, against the cooling jacket 12, flows down the latter and is discharged via pipe 16 and valve 20 into the container 18 from which it is recirculated by the pump 17. When the tap 19 is in its closed position any further supply of coolant is prevented and the ducts are emptied under the action of centrifugal force via the bore 11. The valves 19, 20 may be set to a position in which superheated steam may be supplied to the ducts via a pipe 21 and discharged via a pipe 22.
Patent GB-784248-A (GB)
Title: Improvements in the preparation of high quality dimethyl terephthalate
Filed: 1955-04-18
Abstract: Dimethyl terephthalate is made by reacting polyethylene terephthalate with a stoichiometric excess of methanol at a temperature between 165 DEG  and 250 DEG  C. and a pressure of at least 50 p.s.i.g.  An ester-interchange catalyst such as a metal hydride or oxide or a metal salt of an organic acid may be present.  The reaction system may be pressurized by an inert gas such as nitrogen.  The product separates from the reaction mixture on cooling and is re-crystallized from p-xylene.  Examples illustrate the reaction, (1) and (2)), in the absence of catalysts, and in the presence of (3) mixed manganese acetate and antimony trioxide, (4) lead monoxide, (5) zinc oxide, and (6) calcium hydride.
Patent GB-1469431-A (GB)
Title: Process and composition for assaying for biologically active  molecules
IPC: G01R33/28
Filed: 1974-03-12
Abstract: 1469431 Utilizing e.s.r. in immunological tests LELAND STANFORD JUNIOR UNIVERSITY BOARD OF TRUSTEES 12 March 1974 [12 March 1973] 11043/74 Heading G1B One reaction component in a method of arranging for a compound having at least one epitopic, antigen-active, site, for an antibody capable of specific binding to a specific epitopic site or for complement comprises a "sac" which is a ghost cell or liposome which encloses an aqueous solution of stable free radicals which while enclosed within the sac give rise to a broader peaked e.s.r.  (EPR) spectrum than when released from the sac and dispersed in the reaction system. The free radicals are preferably nitroxide radicals. The ghost cell sac may be prepared from erythrocytes by lysing them then re-sealing the cell membranes in an aqueous medium which includes the free radical substance. The liposome sacs may be prepared by adding a phospholipid, a neutral steroid and an amphiphilic compound to an aqueous medium containing the free radical substance. The epitopic site is provided by antigen or hapten adsorbed on to the wall of the sac, covalently reacted with the sac using a difunctional reagent or enclosed within the sac at the time of its formation. Sacs bound to antibody can by lysed by addition of complement, or agglutinated, separated from unbound sacs then lysed, and the e.s.r. spectrum of the lysed material determined and compared with that obtained with a known concentration of the compound being assayed. The method of assay generally comprises combining in an aqueous buffered medium (1) the unknown (2) the sacs and (3), for determination of compound, antibody and complement, for determination of complement, antibody, or, for determination of antibody, complement.