baber/WOPTO huggingface dataset:
Patent GB-1122709-A (GB)
Title: Automatic control of gas separation unit
IPC: C10G7/12
Filed: 1967-02-27
Abstract: 1,122,709. Automatic control of gas separation unit; fractionating towers. LUMMUS CO. 27 Feb., 1967 [28 Feb., 1966], No. 9226/ 67. Headings BIB and B1L. A control system for a fractionating tower having a feedline, a bottoms reboiler and a reflux line for recycling condensed overhead comprises: means to establish a first signal proportional to the allowable reflux rate for a given feed rate; means to establish a second signal proportional to the actual concentration of a particular overhead constituent less the allowable maximum concentration of the constituent; means to establish a third signal which is the height of the second signal and zero; means to establish a fourth signal proportional to the sum of the first signal and the integral of the third signal over a period of time dt; and means responsive to the fourth signal controlling the reflux rate to the tower.. As shown a flow recorder 40 which generates a signal proportional to the flow rate of the feed to the tower 12, supplies the first signal. This is passed to a calculator A preferably an analog module, which calculates the proper reflux rate for that rate of feed. A concentration recorder 42 generates a second signal proportional to the concentration of the contaminating constituents in the tower overhead. This recorder works in conjunction with a suitable on-stream analysis. The second signal goes to a calculator B which subtracts the maximum acceptable level of the contaminating constituent from the measured level and generates a third signal proportional to the difference between the two. This third signal is then compared with zero in module C and the higher value is selected. A fourth calculator D takes this last signal, integrates it with respect to time and adds it to the first calculated signal. The output of the third calculator controls the setpoint of a flow controller in the reflux line.
Patent GB-579906-A (GB)
Title: Improvements in balanced oil valves for automatic pilots
IPC: F16K11/07
Filed: 1944-05-15
Abstract: 579,906. Servomotor control valves. JACK & HEINTZ, Inc. May 15, 1944, No. 9277. Convention date, Oct. 19, 1942. [Class 135] A balanced oil valve for automatic pilots comprises a piston valve member 4, adapted to be actuated by an air relay in the usual manner, working within a bushing 3 fitting in a bore 2 of the housing 1. The bushing 3 is provided with a series of annular grooves 18 each with. slots 16 to the piston valve bore leaving a plurality of narrow webs 17 connecting adjacent cylindrical portions. The grooves 18 communicate with outlet ports 5 and 6 to the servomotor device (not shown), an inlet passage 21 and an exhaust outlet 23, and control portions 7 and 8 of the piston valve control the supply to, and the exhaust from, the ports 5 and 6. The piston valve is biassed to its neutral position by a spring 9 which opposes movement in both directions. The housing 1 is preferably made of die cast magnesium and the bushing 3 of bronze.
Patent GB-555755-A (GB)
Title: Improvements in web roll splicing method and apparatus
IPC: B65H19/10
Filed: 1942-07-04
Abstract: 555,755. Feeding webs. WOOD NEWSPAPER MACHINERY CORPORATION. July 4, 1942, No. 9287. Convention date, Aug. 6, 1941. [Class 100 (i)] In a web renewing operation in a printing press or other machine, a coating of adhesive applied to the leading end of the web of the new roll, is covered by a flexible shield provided on its outer surface with a layer of a self-sticking adhesive of a kind which will not adhere to the uncoated web surface but will adhere strongly to a similar adhesive coating. In operation, the roll is brought into contact with the running web so that it is rotated thereby and a roller provided with a coating of the self-sticking adhesive is then brought into contact with the roll so that the shield adheres thereto and is removed to expose the underlying adhesive which thereafter adheres to the running web, after which the old web is severed. The leading end 12, Fig. 9, of the web of the new roll is attached to the body of the roll by grease or, as shown, by strips 14 having perforations 15 to facilitate breaking, and is provided with an adhesive 13 over which is applied the shield 16 attached to the roll at its ends by grease 17 or by strips 19 similar to the strips 14. The outer face of the shield and the surface of the shield-removing roller 21, which is normally out of contact with the roll, are provided with a coating of the self-sticking adhesive which may be any suitable non-vulcanizable rubber cement, such as unvulcanized rubber in a suitable solvent. Adherence of the shield to the adhesive 13 may be prevented or minimised by coating the inner surface of the shield with wax 47 or by providing it with ribs formed by corrugations in the shield or by threads or cords secured thereto. Instead of applying the adhesive and shield to the web of the roll, they may be applied to a separate strip which may be secured to the leading end of the web of the new roll when the latter is placed on the roll support.
Patent GB-251604-A (GB)
Title: Improvements in chimney cowls
IPC: F23L17/02
Filed: 1926-04-08
Abstract: 251,604. Vidoni, J. April 29, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Chimney tops. - A chimney cowl, adapted to embrace the top of a chimney, is provided with upwardly directed wind ducts, and a cap m having holes n in its walls. The cowl comprises a truncated pyramidal member a having ribs b at the angles made by its sides, a hollow rectangular member h supported by noses f on the ribs b and a lid k seated by means of a flange i on a shoulder formed on the top of the member k. The lid k is provided on its underside with ribs l facing the ribs b on the member a, so that the ribs b, l form the side walls of the upwardly directed ducts opening into gaps g formed in the member h. The lid is provided with a square opening forming a seat for the four-sided cap m having a cover o. The member a is provided with a rib e engaging a channel in the chimney d.
Patent GB-372050-A (GB)
Title: A new or improved ventilating device or screen suitable for use in motor vehicles or the like
IPC: B60J1/20
Filed: 1931-03-28
Abstract: 372,050. Wind, insect, and like screens for vehicles &c. WILSON, A. S., The Elms, Gosberton, near Spalding, Lincolnshire. March 28, 1931, No. 9456. [Classes 103 (ii) and 108 (i).] In a rail or road vehicle or ship's cabin of the kind in which a sliding roof section or window is designed to cover or uncover a roof or body opening, the opening when uncovered is adapted to be filled in either automatically or non-automatically by a screen of fabric netting or wire gauze mounted on a spring roller or in a rigid frame and functioning as a ventilator, dust or insect screen or as an antidazzle screen. In the construction shown in Fig. 1 the gauze screen a is carried on a spring roller b located at the forward edge of the roof and is attached by press-buttons, clips, screws, or studs and slots to the forward edge of a roof section c adapted to slide over a fixed rear section d, so that the screen a is automatically extended when the section c is displaced rearwardly. A second gauze screen a<1> is also provided to fill in a window opening in the side of the vehicle when the window is dropped. If desired, a flexible extension j, Fig. 6, of cloth or like material may connect the adjacent edges of the screen a and sliding roof section c to prevent draughts from entering between these parts. The roller b may be supported in a box-like casing n, Fig. 11, attached to the body i of the vehicle so as to co-operate with a revolving roller brush o for removing dust &c. from the gauze screen a. Taut spring wires may be stretched across the opening behind the gauze screen to prevent the latter from sagging under external wind pressure. Other constructions are described in which the screen a is supported rigidly at its edges and adapted to be slid by hand from beneath the fixed roof section d so as to fill in the opening left by the sliding section c, the screen a being guided either by rollers y as shown in Fig. 12 or by sliding on tubular guides. Specifications 2082/95, 22677/04, 3513/05, 5718/07, [all in Class 52, Furniture &c.], 18744/10, 295,792, [both in Class 52 (v), Window, stair, and like furniture &c.], and 343,573 are referred to.
Patent GB-358032-A (GB)
Title: Improvements in and relating to the production of esters of anthrahydroquinones
IPC: C07C305/22
Filed: 1930-03-25
Abstract: 1-Chloranthraquinone-2-carboxylic acid is treated with pyridine-sulphur trioxide and a metal, and the resulting sulphuric ester reacted with ammonia, preferably by treating a solution of the alkali salt of the sulphuric ester with ammonia in the presence of a cupric salt; the amidated product may be treated with nitrite and acid and then coupled with phenols to produce dyestuffs. Specifications 261,139, 333,506, and 333,507, [all in Class 2 (iii), Dyes &c.], are referred to.
Patent GB-664200-A (GB)
Title: Improvements relating to cranks for the support of tiles in a kiln
IPC: F27D5/00
Filed: 1949-04-08
Abstract: 664,200. Supporting tiles in kilns. BOOTE, Ltd., T. & R., and HORNE, L. April 6, 1950 [April 8, 1849], No. 9567/49. Class 87(i) Means for supporting tiles b in a kiln comprises plates a formed with protuberances a<SP>1</SP> on their upper faces, corresponding recesses being formed in their lower faces.' The plates are spaced apart by integral or separate legs c.
Patent GB-1476549-A (GB)
Title: Method of and device for the analysis of samples by means of flameless atomic absorption spectroscopy
IPC: G01N21/74
Filed: 1975-03-07
Abstract: 1476549 Atomizing spectrographic samples BODENSEEWERK PERKIN-ELMER CO GmbH 7 March 1975 [7 March 1974] 9636/75 Heading G2J The samples are deposited on a conveyer 36 and increasingly heated at station 14' 16' 22' to drive off solvent, to ash and to vaporize respectively. Chamber 22' is arranged to permit a beam of light to be passed through in the normal way. The chambers may be graphite tubes heated resistively by electricity.
Patent GB-1458691-A (GB)
Title: Bistable circuit
IPC: H03K17/30
Filed: 1974-03-04
Abstract: 1458691 Bi-stable circuits TOKYO SHIBAURA ELECTRIC CO Ltd 4 March 1974 [5 March 1973] 9674/74 Heading H3T In a bi-stable circuit exhibiting hysteresis having an IGFET 11 for generating control signals VP10 in response to input voltage levels at 21 and an IGFET 14 for switching output voltage levels at 22 in response to the control signals VP10, a feedback circuit formed of impedance elements 18, 19 is connected between the input and output and an IGFET 16 is connected in series with the IFGET 11 for controlling the input voltage levels for switching the output voltage levels in dependence on a signal derived from a circuit point between the impedance elements 18, 19. As shown N channel enhancement IGFET's are used; the transistors 12, 15, 18 and 19 can be replaced by resistors. Assuming the transistors 11, 16 and 18 are off and the transistor 14 is on making the output 22 low, when the input Vin at 21 rises from zero to a first threshold voltage Vth (Fig. 2, not shown) then the transistors 11 and 18 begin to turn on. However the transistor 16 remains off until the input voltage Vin has risen to a second threshold voltage Vth+Vth (VP20) to make the voltage at VP20 sufficient to turn on the transistor 16. Now the transistors 11 and 18 turn on and the transistor 14 turns off to make the output 22 high. This change at output 22 is positively fed back through the transistor 19 to turn off the transistor 18 so as to maintain this output state. When the input voltage Vin is reduced below Vth the transistor 11 turns off, transistor 14 turns on to make the output 22 low and the initial state is returned to. The circuit can use P type enhancement transistors. In a modification (Fig. 3, not shown) the drain source path of an additional FET (23) is connected between the transistor 18 and the point 20 so as to increase the range between the first and second hysteresis threshold voltages. The gate of the additional transistor (23) can be connected to the supply source + VDD or in a further modification can be connected to its drain (Fig. 5, not shown). In this further modification a further transistor can be provided between the additional transistor (23) and the point 20 with its gate connected to the power source or its own drain.
Patent GB-1199715-A (GB)
Title: A process for the production of Novel Iminocarbonic Acid Ester Derivatives
Inventor: GRIGAT ERNST
IPC: C01G5/00
Filed: 1969-02-24
Abstract: 1,199,715. Iminocarbonic acid ester derivatives. FARBENFABRIKEN BAYER A.G. 24 Feb., 1969 [9 March, 1968; 11 May, 1968; 15 June, 1968; 7 Aug., 1968 (2)], No. 9675/69. Heading C2C. The invention relates to compounds of the formula in which X denotes a halogen atom, A denotes a sulphur atom or a carbonyl group, n is 1 or 2, R denotes a halogenalkyl radical or an optionally substituted aromatic radical which may be attached to a heterocyclic radical and may contain bridge members and R<SP>1</SP> denotes (1) a halogen atom, (2) an optionally substituted aliphatic, cycloaliphatic, aromatic or heterocyclic radical, (3) a radical of the formula -COOR<SP>2</SP>, -COSR<SP>2</SP> or -CON(R<SP>2</SP>)R<SP>2</SP>, R<SP>2</SP> denoting a hydrogen atom or an aliphatic, cycloaliphatic, aromatic or heterocyclic radical, or (4) a radical of the formula -CX 3 , -COCl or -C(Cl) = NCl. The compounds are prepared by reacting a cyanic acid ester of the formula R(OCN) n  with a halogen compound of the formula X-A-R<SP>1</SP> at about - 20 to 250‹ C., optionally in an inert organic solvent. Many suitable starting materials are specified. Products of the invention may be of the formulµ R(O-C(Cl) = N-OCl) n , R(O-C(Cl) = N-S-COCl) n , R(OC(X) = N-S-CX 3 ) n , R(O-C(Cl) = N-S-C(Cl) = NCl) n , R(O-C(X) = N-CO-R<SP>1</SP>) n  and R(O-C(X) = N-CO-CO-YR<SP>11</SP>) n , in which R<SP>11</SP> together with N denotes a heterocyclic radical. The examples describe the manufacture of the following compounds, inter alia, The products are useful as plant-protecting agents or may be used to precipitate silver or to recover silver from its salt solutions.
Patent GB-291920-A (GB)
Title: Improvements in or relating to printing machinery
IPC: B41F23/00
Filed: 1927-04-08
Abstract: 291,920. Blackie &. Son, Ltd., and Ross, W. April 8, 1927. Dust, collecting.-Dust is removed from a paper web 4 on its way to the printing-cylinders (not shown) by means of suction nozzles acting on opposite sides of the web, brushing-devices being provided adjacent to the nozzles on one or both sides of the web. Devices for blowing the dust into the mouths of the suction nozzles may also be provided. A number of nozzles 5 arranged across the width of the web are provided on the upper side, each nozzle having a mouth 6 in the form of a long slot. The nozzles 5 extend from a main suction pipe 2 carried by an arm 9 pivotal about a pin 10, which is adjustable along a slot in a bracket 12 so that the nozzles may be adjusted along the length of the web and may be swung up out of the way. The pipe 2 is supported by pillars 14, which are screwed into bosses on the pipe, and rest on foot plates 16. A brush 24 is arranged on each nozzle at a trailing angle to the web. and is both pivotally and adjustably mounted. A valve may be provided in each nozzle 5 and in the main pipe 2. On the lower side of the web a similar set of nozzles 7 is provided extending from a pipe 3 fixed to a girder 19, which is attached to a fixed part by screws 17<1> passing through slots 18, and is supported by pillars 20. One boundary of each nozzle slot, e.g. the boundary 27 or 28, is at a different level from the other to prevent the web 4 sticking to the nozzle, and the edges of the slots may be serrated.
Patent GB-222527-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B25/00
Filed: 1923-04-09
Abstract: 222,527. Newcomb, E. C. April 9, 1923. Regulating.-In a two-stroke engine wherein combustible mixture is compressed in the crank case, the exhaust is controlled by a throttle 25 moved simultaneously with a cam 9, which limits the amount of opening of a suction-actuated valve in the carburettor delivery pipe 7.
Patent GB-165946-A (GB)
Title: Improvements in and relating to bombs or projectiles to be dropped from aircraft
IPC: F42C15/295
Filed: 1920-04-06
Abstract: 165,946. Nieukirk, J. W. April 6, 1920. Projectiles; fuzes.-Consists in a combined shrapnel and incendiary bomb, arranged as described below, and provided with special forms of delay and direct-action fuzes of the kind armed by an air-vane device. The firing-pin for igniting the delay composition is drawn against the primer by the air-vane, and the movement of the firing pin arms a detonator rod which passes longitudinally through the shell and normally bears at its inner end against the base of the locked firing pin. The detonating rod projects from the nose of the bomb, is urged outwards by a spring, and is formed with a plate which carries four directaction firing pins. As shown in longitudinal section in Fig. 6, the bomb comprises a head 20, annular chambers 82, 84, 86, containing respectively a bursting charge, shrapnel bullets, and an inflammable liquid, and a tail carrying the airvane 66, Fig. 10, the arming device, and a delayaction burning fuze. The firing pin 53 for igniting the delay composition is carried by the head 47, Fig. 8, of a hammer, the stem 48 of which passes axially through the tail and carries at its outer end a ball race 60, 61. The head 47 is located in a transverse slot 46 in a hammer-carrying member 44, Fig. 9, which is screwed on to the base plug 39 and is externally screwed to receive the threaded boss 65 of the air-vane 66. The member 44 carries a percussion cap in the path of the firing pin 53, and channels 51, Fig. 9, and 50, Fig. 6, of fuze composition make a transmission path from the cap to the bursting charge 83. The air-vane normally bears upon the projecting ends of the hammer head 47, but unscrews itself while the bomb is falling and then contacts with the anti-friction balls 61 and draws the firing pin upwards on to the percussion cap to ignite the delay fuze 50. A detonator rod 77 passes axially through the shell and bears against the hammer head 47. The rod projects through the nose of the bomb and is formed with a plate 74 carrying four firing pins 75. After the hammer 47 has been actuated by the air-vane, the rod 77 is armed, so that on impact with an object it is driven inwards against the pressure of a spring 76, and the firing pins 75 forced on to percussion caps 31 to ignite the bursting charge 83.
Patent GB-242873-A (GB)
Title: Improvements in upholstery piping bat and method of making the same
IPC: B68G7/02
Filed: 1925-04-14
Abstract: 242,873. Stack, M. J. April 14, 1925. Wadding. - Batting for upholstery padding and like purposes comprises a layer of fibrous material such as the ordinary unabsorbent cotton batting, wrapped around a loosely twisted rope of the same material forming a reinforcing core. The sheet of batting is folded in a machine in a direction opposed to the lay of the twisted core 9 by means of twist folders 5 - - 8, the folding operations being followed successively by pressing under rollers 2, 3, 4; the fibres of the core and envelope being by this action intermeshed as shown in Fig. 9.
Patent GB-1505711-A (GB)
Title: Refrigeration evaporator
IPC: F25B39/02
Filed: 1976-03-03
Abstract: 1505711 Defrosting T C STUCKEY and B A SUSSEX 3 March 1976 [10 March 1975 28 Nov 1975] 9780/75 and 18097/77 Heading F4H An evaporator comprises a plurality of spaced apart plates 11 interconnected by at least one elongate hollow member 27 containing either water or a eutectic substance 28, a first conduit 13 extending through the member 27 for conveying refrigerant, and means in the form of a second conduit, extending through all said plates at a location spaced from the hollow member for heating said plates when they have to be defrosted. The first and second conduits may be part of a refrigeration system which also comprises a compressor 22, a valve 21, a condenser 19, an expansion device 17, a distributor 14, and header tanks 15 and 25. The second conduit may be replaced by an electrically heatable rod.
Patent GB-550990-A (GB)
Title: Improvements in or relating to flexible coupling units
IPC: F16D3/50
Filed: 1941-08-01
Abstract: 550,990. Pipe-joints; articulated hose; belt gearing. ANDRE RUBBER CO., Ltd., T. B., and FRENCH R. D.. Aug. 1 1941, No. 9797. [Classes 99 (i) and 99 (ii)] [Also in Group XXIV] A flexible coupling unit, applicable to pipe joints or for connecting the ends of belts or chains, comprises two rigid tubular elements A having on their adjacent ends outwardly - extending flanges A<SP>1</SP>, spaced apart and embedded in rubber B to which they are bonded, and an outer metal safety ring C also bonded to the rubber and provided with inturned flanges C' which overlap radially the rubber-embedded flanges A<SP>1</SP>. In one form, Fig. 1, the ring C is transversely divided into two parts surrounded by an outer ring C<SP>2</SP> and the inner surface of the ring C is concentric with outer spherical surfaces of the flanges A<SP>1</SP>. A number of units may be connected to form a flexible pipe or bend or an endless belt. Fig. 3 shows two such units, with hook-shaped flanges E embedded in and bonded to rubber B', which also covers the safety ring D.
Patent GB-403097-A (GB)
Title: Improvements relating to cabins or chambers for protection against toxic gases
IPC: A62B31/00
Filed: 1932-04-05
Abstract: <PICT:0403097/III/1> <PICT:0403097/III/2> In connection with a chamber or cabin for protection against toxic gases, such gases as carbon monoxide, capable of combining with oxygen in the presence of spongy platinum or the like, are detected in the external atmosphere by the rise in temperature of an indicator comprising a U-tube 36 Fig. 12 with parallel or divergent limbs 41 set horizontally or vertically in plate 37 bolted with interposed packing 43 over an aperture in the cabin wall.  One limb 41 contains the catalyst 40 retained by a lip 39. Caps 44 protect the appliance when not in use. Instead of a U-tube a rectangular or cylindrical tube closed at one end and having a longitudinal partition may be employed.  A detector for phosgene comprises a tube 59, Fig. 17, with an open end 62 projecting through the wall of the cabin, having screw jointed thereto a glass tube 49 surrounded by a metal casing 51 with diametrically opposed elongated windows 55.  Rotatable on the casing 51 is a casing 53, closed at the bottom and having windows 56 adapted to register when required with the windows 55.  The tube 49 contains aniline which in the presence of phosgene deposit white crystals which are observed as a cloudiness in the liquid. Between observations casing 53 is rotated to screen the aniline from the action of light.