baber/WOPTO huggingface dataset:
Patent GB-688493-A (GB)
Title: Processes and machines for the continuous manufacture of artificial yarn
IPC: D01D10/04
Filed: 1950-07-27
Abstract: <PICT:0688493/IV (a)/1> <PICT:0688493/IV (a)/2> A machine for the continuous manufacture of artificial yarn comprises, in combination, means for forming the yarn from a spinning solution, a yarn-storage and advancing device positioned above and spaced from the yarn forming means and adapted to draw the yarn upwardly and away from the yarn-forming means and to advance the yarn in a large number of helical turns, a drying device positioned above and spaced from the said yarn-storage and advancing device, and a yarn-collecting device positioned adjacent the drying device.  The apparatus may be used in the production and after-treatment of regenerated cellulose yarn. Viscose may be extruded into an acid spinning bath, and the bundle of filaments may be brought together as a yarn which is drawn upwardly to the yarn-storage and advancing device, treatment liquid being applied to the turns of yarn on the device.  The yarn is then led upwardly to a drying device and adjacent collecting device.  As shown in Fig. 1, filaments from spinneret 2 pass upwardly from the coagulating bath 1 to a yarn-advancing reel 3. Excess of the bath liquid is thrown off by centrifugal force as the yarn passes round the reel.  A cover 4 encloses the reel except for small openings for the entry and exit of the yarn. From reel 3, the yarn passes upwardly to another reel 7 where it is treated with several liquids in succession.  The liquids are applied separately by rotating brush-like devices 8, as shown in Fig. 2.  The reel 7 is enclosed by a cover 9 which is connected to an exhaust duct 21.  From reel 7 the yarn passes upwardly to another reel 11 where it is subjected to a further series of treating liquids in succession as it advances from one end of the reel to the other.  The yarn passes from reel 11 upwardly to the drying device 16 positioned at an upper level or on a separate upper floor.  The device 16 comprises a pair of rotatable metal drums 17 arranged with canted axes and heated internally.  The yarn advances axially over the surfaces of the drums in a series of loops, and is passed in dry condition to a winding reel 19 placed adjacent to and just above the drying device. Specifications 474,973 and 474,974 are referred to.
Patent GB-583506-A (GB)
Title: An improved method of, and shaft kiln for, burning, calcining or sintering granulated or briquetted materials
IPC: F27B1/00
Filed: 1944-10-03
Abstract: 583,506. Shaft kilns. GOTTLIEB, S., and PORTLAND CEMENT CO. NESHER, Ltd. Oct. 3, 1944, No. 18943. [Class 51 (ii)] [Also in Group XI] Granulated or briquetted materials are burnt in a shaft kiln by introducing liquid fuel from the top of the kiln with a limited supply of air into an intermediate z o n e where a minor part of the fuel is burnt and the remainder gasified and burnt with secondary air introduced at the bottom of the kiln. As shown, liquid fuel and an atomizing fluid are supplied through flexible pipes 8, 9 to a burner 10 located in the lower bellend 4 of an air supply conduit 3 covered by firebrick 5 and a concrete block 7 suspended by bracing members 6 from the top of the kiln. The burner has a centring ring 10<1> which rests on ribs 4<1> on the conduit 3. The conduit 3 is bent at an angle and is provided with a mirror 13 for observing the interior of the kiln through the inclined part 3' of the conduit 3. The bell-mouth 4 of the conduit 3 may be formed as a coil through which cooling liquid is circulated or a cooling coil may be arranged within the bell-mouth. Secondary air is supplied to the base of the kiln through the port 17. Specification 504,142 is referred to.
Patent GB-147020-A (GB)
Title: Improvements in connection with the removal of dust from the gases derived from the roasting of ores
IPC: C22B7/02
Filed: 1920-07-06
Abstract: 147,020. Manufactures de Produits Chimiques du Nord, Etablissements Kuhlmann. May 6, 1914, [Convention date]. Magnetic separators.-A device for removal of dust from gases evolved in the roasting of ores consists of a chamber in which the current of gas passes at right angles through curtains consisting each of several parallel rows of chains which may be magnetized, the curtains being separated by spaces forming depositing chambers; the chains of consecutive rows of a curtain being disposed so as to split the current up as much as possible. Fig. 1 shows a chamber into which the gas enters by a conduit 1 and strikes against the rows 4, 5 of chains, part of the dust being deposited thereon and part in the intermediate spaces between the curtains; the purified gas passes out by the conduit 13. The chains of a row may be fastened together, while the chains of the rows forming a curtain are connected to wires 7 by which they may be shaken at intervals when no gas is passing. Dust falling to the bottom is carried out. side the chamber by a screw conveyer 10. The chains of successive rows of a curtain may be disposed in echelon vertically or horizontally.
Patent GB-1208526-A (GB)
Title: A bistable electrical circuit
Inventor: WIEDMANN SIEGFRIED KURT
IPC: H03K3/286
Filed: 1969-04-14
Abstract: 1,208,526. Transistor bi-stable circuits. INTERNATIONAL BUSINESS MACHINES CORP. 14 April, 1969 [13 April, 1968], No. 18970/69. Heading H3T. A cross-coupled bi-stable transistor pair T1, T2 deriving its emitter and collector supply potentials from a source 10, is switched in response to a pulse at B1, or B0 by raising the potential of the complete bi-stable (by a pulse from 10) relatively to a switching circuit, such as an emitter-coupled pair of transistors T3, T4. If T2 is OFF, and a " 1 " pulse is applied at B1, then when the pulse from 10 raises the potential V0 the base-emitter junction of T4 becomes forward biased and T4 conducts, the base current therein producing a potential drop across the collector resistor RC2 of T2 which is sufficient to turn off T1, and thus change the state of the bi-stable. Raising the potential of the bi-stable, instead of lowering the potential of the switching circuit transistors T3, T4 as happens in what is said to be the known circuit of Fig. 1 (not shown), enables the collector diodes (D0, D1) to be dispensed with. This facilitates integrated circuit construction, in which the collectors of the T3 transistors in a plurality of identical bi-stable stages are all formed in a common semi-conductor block; and similarly for the T4 collectors.
Patent GB-212186-A (GB)
Title: Improvements in electric control apparatus for illuminated signs
IPC: G09G3/00
Filed: 1923-07-24
Abstract: 212,186. Roth, L. July 24, 1923. Stencil switches.-Relates to apparatus of the type in which electric lamps are selectively illuminated to form words or the like, and comprises switching apparatus wherein a series of legends is set up for successive display, any legend of the series being readily alterable without arresting the intermittent action of the device. Each group of lamps can be made to represent any letter or the like. and the sets of contacts 14, Fig. 6, corresponding to successive groups are arranged in successive straight rows on a plate 15. Figs. 1 and 6, which is reciprocated vertically above one of the frames 1. In each frame 1 is interchangeably secured, by snap springs or the like, a box 17, Fig. 4, in which are arranged a set of contact bars 16, Figs. 4 and 6, each bar corresponding to one letter and being adapted to engage with its corresponding row of contacts 14 and cut away so as to miss certain of these contacts, according to the letter required. The frames 1 are connected in a chain by means of hinges 2 having rollers 3 running in U-sectioned guides and over revolving frames 5, one of which is given an automatic intermittent motion by means of a pin 8 which is carried by a continuously revolving disc 7 and engages intermittently in slots 10 in a disc 11 attached to the frame 5. During the; motion of the chain, the plate 15 is lifted clear of the contact frames 1 by a lever 21 operated by a cam 24.
Patent GB-1009934-A (GB)
Title: Improvements in the blow mouding of hollow articles
Inventor: AMIGO ALFONSO
IPC: B29C49/42
Filed: 1961-05-25
Abstract: 1,009,934. Blow moulding hollow articles. AMIGO MACHINE CO. Ltd. April 11, 1962 [May 25, 1961], No. 18987/61. Heading B5A. In a method of blow moulding hollow articles a thermoplastic polymer is extruded horizontally in a plastic condition from a heated extrusion die and, while still substantially plastic, supported and bent to form a vertical portion of tube at least part of which is enclosed in a mould and expanded by introducing fluid under pressure. The supporting and bending means are electrically heated and may comprise as rod mounted on the core of the extrusion die and curving from the horizontal to the vertical, or a roller mounted for free rotation about a horizontal axis.
Patent GB-390485-A (GB)
Title: Improvements in process for crocheting and machine for performing this process
IPC: D04B23/12
Filed: 1931-07-01
Abstract: 390,485. Knitting-machines. MURMANN, S. P., 20, Niels Ebbesensvej, Frederiksberg, Denmark. July 1, 1931, No. 19002. Convention date, July 2, 1930. Void [Published under Sect. 91 of the Acts]. [Class 74 (ii).] Relates to warp machines for knitting sponge cloth. The weft 57 is supplied by a thread guide 54 mounted upon a shaft 46 having a left and a right handed screw thread 50 of large pitch. A screw-threaded shaft 81 of small pitch is rotatable in both directions and is provided with a nut 100 which, when it reaches either end of the shaft 81, disengages the thread guide 54 from its shaft 46 so that the guide may remain at rest while the weft thread is laid upon the needles. Hooked members 64 carried upon a bar 62, Fig. 4, are depressed when the guide 54 reaches the end of its stroke in each direction to place the weft thread 57 in the path of the needles 21. Gearing 40 .. 44 is provided for changing the speed of rotation of the shaft 46 so that a greater or smaller number of warp loops may be knitted between each laying of a weft thread. The warp threads 26 are fed through holes 27 in a stationary bar 28, the front edge of which serves as a latch opener. The fabric take-up drum 110 is driven by an eccentric 120, strap 119 and rod 118. The rod 118 is secured to a disc 113 and a freewheel device 114, 115, 116 is provided so that the drum 110 rotates in one direction only. Adjustment of the strap 119 upon the rod 118 varies the speed of take-up or tension of the knitted fabric.
Patent GB-405630-A (GB)
Title: Improvements relating to loose leaf books
IPC: B42F13/00
Filed: 1932-07-06
Abstract: 405,630. Loose - leaf books. STONE, H. B., 17, Craven Road, Addiscombe, Croydon, and JONES, P. H., Twinlock Works, Beckenham, Kent. July 6, 1932, No. 19110. [Class 146 (i).] In loose-leaf books having telescopic posts mounted on clamping-bars and enclosing springs for drawing the clamping-bars together, some of the posts are movable longitudinally of the clamping-bars by cords extending between the bars and engage locking slots on the leaves. As shown, the posts c are fixed to the clamping- bars a and the posts f are mounted on a slide g on each clamping-bar. Springs k tend to move the posts f to the position shown dotted where they engage L-shaped slots in the leaves and lock them in the book. A cord m is attached to each slide g and passes through one of the fixed posts and is fastened to the opposite bar a so that when the bars a are moved apart, the posts f are moved automatically to sheetreleasing position. A single cord attached to both slides g may be employed. Further, separate slides for the base of each post f may be provided and the springs k and cords m arranged so that the posts move in opposite directions, the slots in the leaves being arranged to correspond : a flanged plate b of curved cross-section is slid over the bar a to cover the mechanism when it has been assembled thereon.
Patent GB-430123-A (GB)
Title: Improvements in storage chambers for maintaining food and other goods at desired temperatures
IPC: F25D17/04
Filed: 1934-06-29
Abstract: 430,123. Refrigerators. XTRAVAC, Ltd., 27, Shortland Street, Auckland, New Zealand. June 29, 1934, No. 19245. Convention date, Aug. 7, 1933. [Class 29] A storage chamber for food and other goods is provided with a jacket G through which cooling or heating media can be passed and a jacket J which can be evacuated, and the storage space A is provided with a pipe connection M for evacuating it and a connector N for breaking the vacuum when the door C is to be opened. The door may contain insulating material or be provided with an evacuated space in order to complete the heat insulation of the storage space. Packing E is provided to prevent air leaking into chamber A when the door is shut.
Patent GB-1380160-A (GB)
Title: Arrangements for the optical evaluation of specimens
IPC: G01N21/25
Filed: 1972-04-26
Abstract: 1380160 Photometric analysis MAXPLANCK-GES ZUR FOERDERUNG DER WISSENSCHAFTEN EV 26 April 1972 [27 April 1971] 19259/72 Heading G1A [Also in Division G2] A plurality of fluid samples are investigated photometrically in an apparatus which has a first support 4 supporting a plurality of transparent chambers 5 in mutually spaced arrangement about an axis, each chamber being shaped to permit flow of fluid therethrough, conduits connecting the chambers to respective sources of the fluid specimens to be examined; a second support structure 9, supporting a photo-detector 6 and a light source 1 focused on the photo-detector, the first and second support structures being relatively rotatable about said axis, reversible drive means, e.g. motor 7, for effecting such rotation, the chambers being arranged relative to the light source and detector so as to sequentially intercept the beam therebetween upon rotation. The chambers may be tubes mounted in grooves in rotor 4, pipes feeding and emptying the tubes being provided. The drive for the rotor may be as shown, or through gearing so that the axis of the motor shaft is displaced from the axis of the rotor. The motor drive may also drive an indicator to denote which sample is under investigation, and the motor may also be arranged to reverse direction of drive when the rotor has turned through about 350 degrees, to bring the apparatus back to the starting position.
Patent GB-146736-A (GB)
Title: Improvements in suspenders
IPC: A41F3/00
Filed: 1919-08-05
Abstract: 146,736. Stevens, W. H. Aug. 5, 1919. Buckles.-In a pair of braces, the connexion at the back between the shoulder strap and tab end is made by a frame 14 with a pair of parallel slots 15, 16 and a pair of inclined slots 19, 20. The shoulder strap 22 is slidable in the uppermost slot, and the tab end webbing 11 passes through one of the inclined slots, through both the parallel slots, and lastly through the other inclined slot.
Patent GB-969681-A (GB)
Title: A device for measuring pressure or pressure variations in liquids or gases
IPC: A61B5/0215
Filed: 1962-05-21
Abstract: 969,681. Measuring body fluid pressure. H. P. O. UNGER, and J. E. TENGBERG. May 21, 1962 [May 29, 1961], No. 19419/62. Heading ASK. [Also in Division G1] The pressure of a fluid in a space I<SP>1</SP>, e.g. the human body, is measured by inserting a needle or an inlet tube 1 into the fluid and balancing the pressure against the air pressure caused by moving a piston 9 in a cylinder until the boundary between the fluid and the air is aligned with an indicator mark 3. If the fluid is a gas a buffer liquid may be introduced between the gas and the air. Alternative shape of tubing 2 may be provided, e.g. a liquid-filled tube shaped to prevent air entering fluid in space 1<SP>1</SP> if piston 9 is depressed too far. Different graduated scales may be provided on housing 12 for different temperature conditions.
Patent GB-1084486-A (GB)
Title: Modified bitumen
Inventor: KREMER HENRY AUSTIN FRANCIS LE
IPC: C08L95/00
Filed: 1966-05-03
Abstract: A composition comprises bitumen and a lesser weight of a waxy polymer having M.W. 50,000-75,000, R and B m.p. 300-380 DEG  F., and melt viscosity (400 DEG  F.) 1000-4000 c.p.s. The polymer may be a saturated aliphatic polymer or copolymer, e.g. polyolefin or polyester. Fillers, e.g. fly ash, comminuted asbestos, slate powder, or powdered limestone, may be added.ALSO:Roofing felt is made by reinforcing with hessian, asbestos, rags, or synthetic fibres a composition comprising bitumen and a waxy polymer with or without fillers.  The polymer has MW 50,000 - 75,000, R & B m.p. 300 DEG  - 380 DEG F, and viscosity (400 DEG F) 1000-4000 cps, and may be a saturated aliphatic polymer or copolymer, e.g. polyolefin or polyester.ALSO:Roofing felt is made by reinforcing a composition comprising bitumen and a waxy polymer, with or without fillers, with a glass fibre fabric or mat, or with metal foil.  The polymer, which has MW 50,000 - 75,000, R and B m.p. 300 DEG  - 380 DEG F, and viscosity (400 DEG F) 1000 - 4000 cps, may be a saturated aliphatic polymer or copolymer, e.g. polyolefin or polyester.
Patent GB-1530214-A (GB)
Title: Cathode reactants
IPC: H01M6/26
Filed: 1976-05-12
Abstract: 1530214 Reactive metal cell containing cathodic reactants in electrolyte LOCKHEED MISSILES & SPACE CO Inc 12 May 1976 [29 Dec 1975] 19480/76 Heading H1B An electrochemical cell comprising a reactive metal anode, e.g. Lithium, highly reactive with water and spaced from a cathode, e.g. Iron, by an electrically insulating film formed on the anode in the presence of water, an aqueous alkaline electrolyte in which the anode and cathode are immersed, e.g. potassium or lithium hydroxide, the electrolyte permitting at the anode electrochemical dissolution of reactive metal and formation of a solid salt containing said ions in the form of a porous film on the anode and at least one soluble inorganic ion selected from the group of ions consisting of nitrite, hypochlorite, chlorate, bromate, dinitrogen trioxide and sulphite ions in the aqueous alkaline electrolyte which ion is reduced preferentially to water at the cathode and substantially eliminates hydrogen evalution. The soluble ions may be formed by dissolving soluble salts of potassium and sodium in the electrolyte or by dissolving soluble gases, e.g. dinitrogen trioxide or sulphur dioxide in the electrolyte,
Patent GB-893445-A (GB)
Title: Improvements in regulating the flow to the chill mould in continuous-casting plant
IPC: B22D11/18
Filed: 1960-06-02
Abstract: 893,445. Continuous casting processes. SCHLOEMANN A.G. June 2, 1960 [June 3, 1959], No. 19513/60. Class 83 (1). [Also in Group XXXV] Flow of metal to a continuous casting mould 6 is regulated by passing an electric current through the melt along the path of flow, while maintaining a magnetic field in a plane perpendicular to said flow, the reaction tending to force the jet against the wall of the outlet 2 and thus constricting the jet. The inner wall of the outlet 2 may be roughened, and the flow rate may be varied by varying the voltage between the electrodes 8, 9 or by varying the strength of the field.
Patent GB-1171214-A (GB)
Title: Improvements in Servo Systems
Inventor: TINKLER KENNETH
IPC: G05D3/14
Filed: 1967-04-27
Abstract: 1,171,214. Automatic speed control. TELEHOIST Ltd. July 25, 1968 [April 27, 1967], No.19513/67. Heading G3R. To prevent any jerky motion of a driven member at relatively slow speeds the D.C. gain and A.C. gain of the operational amplifier 15 whose output determines the movement of the member are increased simultaneously by switchable means responsive to the occurence or selection of a predetermined slow speed, a velocity feedback loop feeding to the amplifier input a signal representing the actual rate of movement of the member. The member is driven by a hydraulic motor 11 controlled by flow of hydraulic fluid through tubes 12 of a servovalve 10 in accordance with the signal received by a coil 13 from the output of a driver amplifier 16 fed by amplifier 15. Amplifier 15 has a resistive feedback path 22 and a capacitative feedback path 23 controlling the D.C. gain and A.C. gain respectively. Resistor 25 and capacitor 27 are short circuited at high speeds by the closing of contacts 28 and 29 of a relay having a coil 30. Actual motor speed is sensed by a tachogenerator 14 and fed to amplifier 15. Motor speed and direction are determined by the choice or setting of a potentiometer 17, the older 20 being coupled to amplifier 15 through an R.C. smoothing filter 21 for preventing step inputs. The relay is operative when the desired motor speed is above a preset level, the sensing unit 31 responding to the voltage at slider 20 or to the choice of potentiometer. If required there may be separate transition points, the lower for falling speeds and the higher for rising speeds. A dither oscillation is coupled to the input of amplifier 16, when the relay closes a contact 32 to oscillator 33, to overcome stiction. A system for controlling the angular position of the motor shaft includes a potentiometer 40, Fig. 2, for selecting the required position, feeding one input of a summing amplifier 41 whose other input is fed from the output of a transducer 42 responsive to actual position of the shaft or of the driven member. The output of the amplifier feeds a system 43 comprising the system of Fig.1 except that potentiometer 17 is replaced by the output of amplifier 41. The velosity feedback provides damping to prevent too rapid approach of a controlled member to a selected position, the relay being automatically operable on the achievement of a low speed. The Fig. 1 system may control surface finishing apparatus.
Patent GB-872210-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J75/00
Filed: 1958-06-18
Abstract: The invention comprises compounds of the formula:  <FORM:0872210/IV (b)/1> wherein R is hydrogen or the acyl radical of a hydrocarbon carboxylic acid of 1-12 carbon atoms, inclusive; R1 is hydroxy or keto; and X is hydrogen, bromine, fluorine or chlorine; and the 1,2-dehydro analogues thereof; compounds having the formulae <FORM:0872210/IV (b)/2> wherein R is hydrogen or the acyl radical of a hydrocarbon carboxylic acid of from 1-12 carbon atoms inclusive, R1 is a hydroxy or a keto group, R11 is hydrogen, lower alkoxy, trifluoromethyl or carbo-lower-alkoxy and M is an alkali metal, and the preparation thereof by converting 11b ,21 - dihydroxy - 6 - methyl - 4,17(20)-pregnadiene-3-one or a 21-ester thereof to a 2-carbonyl derivative, methylating to produce the corresponding 2-methyl-2-carbonyl compound, removing the 2-carbonyl group to produce the 2-methyl compound, esterifying the thus-produced 21-hydroxy compound to produce a 21-esterified compound and oxidatively hydroxylating the D 17(20)-double bond to produce 2,6a  - dimethyl hydrocortisone acylate.  The 11-hydroxy group may be oxidised e.g. with chromic acid to form an 11-keto group.  A D 1-double bond may be introduced by means of a fungus of the genus Septomyxa or selenium dioxide.  Illustrative products of the invention are 2,6a -dimethylhydrocortisone, 2,6a  - dimethylhydrocortisone, 2,6a -dimethylcortisone, 2,6a -dimethyl-9a -fluorohydrocortisone, 2,6a -dimethyl-9a -fluorocortisone, and the 21-acetates thereof. Specification 829,903 is referred to.ALSO:Pharmaceutical compositions comprise 2,6a -dimethyl - 11b ,17a ,21 - trihydroxy - 4 - pregnene-3,20-dione, the 21-esters thereof, or the 9a -fluoro or 11-keto analogues thereof and a pharmaceutical diluent.  They may be employed for injection in suspensions, orally, or topically as ointments, creams, and lotions. Specification 829,903 is referred to.
Patent GB-964768-A (GB)
Title: Attachment for scourers
Inventor: AITKEN ROY
IPC: A47L13/022
Filed: 1963-05-16
Abstract: 964,768. Cleaning pads; pan scrapers. ROY AITKEN & PARTNERS Ltd May 16, 1963, No. 19555/63. Headings A4F and A4R. A scouring pad 12 is clamped between a disc 17 having a toothed scouring surface and a head 10 formed with a handle 11. Teeth 13 provided on the head 10 prevent relative movement between the head and the central portion of the pad 12.