baber/WOPTO huggingface dataset:
Patent GB-1128718-A (GB)
Title: Apparatus for separating solids from liquids
IPC: C07C37/84
Filed: 1967-05-01
Abstract: 1,128,718. Reflux crystallization. INVENTA, AG. FUR FORSCHUNG UND PATENTVERWERTUNG, ZURICH. 1 May, 1967 [2 May, 1966], No. 20052/67. Heading BIG. In a process of reflux crystallization, crystals are conveyed through a column in countercurrent flow to liquid by means of a liquidpermeable screw conveyor of gauze or perforated material rotating at 0.1-300 rpm. The column may be subjected to a pulse having a frequency of 15-400 cycles per min and a stroke of 1-200 mm. Alternatively, the worm may be pulsated. As shown, a liquid mixture to be treated is crystallized in a scraper cooler 2 and is conveyed to the middle section of a reflux column 1 containing a sieve screw conveyor 8 and subjected to the pulsing action of a reciprocating piston 9. A high mp fraction in crystal form is melted by a heater 6 at the base of the column, a portion of the melt being withdrawn and the remainder passing back up the column. A low mp fraction in liquid form is discharged from the top of the column and a portion recycled in crystal form to the upper part of the column after passage through a scraper cooler 5. Caprolactam or phenol may be purified.
Patent GB-627021-A (GB)
Title: Improvements in or relating to navigation aiding radio-beacons
IPC: G01S1/02
Filed: 1946-07-05
Abstract: 627,021. Radio - - navigation. SADIRCARPENTIER. July 5, 1946, No. 20216. Convention date, Oct. 13, 1944. [Class 40 (vii)] In an equi-signal overlapping-field radio beacon comprising either two crossed loops or a single loop and open aerial, both aerials are fed with two different radio frequency currents (having angular frequencies #, #<1>), the current of angular frequency # in. one aerial and the current of angular frequency w<1> in the other being periodically and simultaneously reversed in phase in a dot-dash sequence. The beacon course lines are defined by the directions along which the amplitude of the beat frequency (# - #<1>), which occurs in the receiver after detection, does not vary in the dot-dash sequence. These directions are independent of relative phasing of the currents of the two radio frequencies. The course-lines lie perpendicular to the plane of each loop and are independent of the amplitudes of the currents flowing in the aerials, so long as certain conditions are maintained. Thus, in a crossed loop system (wherein the loops are not necessarily perpendicular), four course-lines are defined, and in a loop and open aerial system a pair of course-lines is defined. In the embodiment illustrated, a radio frequency signal from 1 and an audio frequency signal from 2 are mixed in 3 to give the radio frequency oscillations #, #<1> which are separated by the filter circuit 4, amplified at 5 and 6, and are combined in the stages 7 and 8 which feed the crossed loops 9 and 10 respectively. In each of the circuits 7 and 8, one radio frequency oscillation, say w in 7 and #<1> in 8, is applied directly to the power valve, Fig. 3 (not shown), feeding the respective loop, while each of the other oscillations is switched in phase by synchronously-operated mechanical switches. Alternatively electronic switching may be used. The relative amplitudes of the various oscillations may be varied by means of potentiometers so as to vary the sharpness of the beacon courses. Alternative means for producing the frequencies #, #<1> are described, as they may be too close together to be separated easily by filters such as at 4. The radio frequency and audio frequency are initially mixed with an intermediate frequency from which suitable components are selected and mixed again to produce the frequencies # and #<1>.
Patent GB-353661-A (GB)
Title: Improvements in or relating to golf clubs
IPC: A63B53/02
Filed: 1930-07-04
Abstract: 353,661. Golf clubs. TURNER, J. H., Frilford Heath Golf Club, Abingdon, Berkshire. July 4, 1930, No. 20344. Grant of Patent opposed. [Class 132 (ii).] In a golf-club of the kind in which the socket is formed to receive an externally tapered or reduced portion of a steel shaft, the head is attached to the shaft by a bolt that is inserted into the shaft from the upper end so as to'engage an internally constricted part at the lower end of the shaft, and is screwed into a nut located in a recess in the sole of the club head. As shown in Fig. 2, a bolt 7 having a conical head 7a is screwed into a conical nut 8 that expands the lower split end of the shaft 4 into engagement with the walls of a conical recess in the sole of the club head 2. The head 7a may be elongated and extend to a position above the socket 1 for strengthening purposes. In a modification, Fig. 3, the bolt passes through a conical plug 10 of wood, rubber, or other material, a washer 11 being interposed between the head and the plug. In a further modification, the bolt head engages a washer seated on the rib formed by an annular constriction of the shaft. The nut is formed with a diametral slot to receive a screwdriver.
Patent GB-721540-A (GB)
Title: Improvements in or relating to iso-octyl alcohol
IPC: C07C29/16
Filed: 1951-08-29
Abstract: Octyl alcohols are prepared by reacting a heptene fraction of B.R. 165-215 DEG  F. obtained by catalytic polymerization of propene or a mixture thereof with a minor proportion of ethylene and/or normal butenes but free from isobutene, with CO and H2 in the presence of cobalt catalysts, and hydrogenating the aldehyde obtained.  The products are dimethyl hexanols with the CH3 groups on different carbon atoms but with the 2- and 6-positions free, and yield on esterification with, e.g. phthalic, adipic, sebacic or phosphoric acid, plasticizers for resins and cellulose derivatives.  The olefin feed is freed of any isobutene, e.g. by extracting with 60-70 per cent sulphuric acid, benzene sulphonic acid or cresol, and polymerized with phosphoric acid-kieselguhr. The desired heptene cut is separated and worked up substantially as described in Specification 679,788.  With a feed of 90 per cent propene and 10 per cent normal butenes, the alcohols analysed: 3,5-dimethyl hexanol-1, 30; 4,5-dimethyl hexanol-1, 26; 3,4-dimethyl hexanol-1, 18; 3 and/or 5-methyl heptanol-1, 17; and 5,5-dimethyl hexanol-1, 1.5 per cent. Particularly suitable mixtures of dimethyl hexanols for plasticizers contain 15-45 per cent, 3,5-dimethyl, 14-40, 4,5-dimethyl, and 9-27, 3,4-dimethyl isomers.  The effect on plasticizer efficiency of varying butene and isobutene content of the feed is illustrated.
Patent GB-1395476-A (GB)
Title: Magnetic printing apparatus
IPC: B41J2/43
Filed: 1973-04-30
Abstract: 1395476 Magnetic printing DATA INTERFACE Inc 30 April 1973 [24 May 1972] 20395/73 Heading B6C Magnetic toner stripped from endless tape 10, after transfer of a developed line to copy web 28, is returned from erasure housing 32 to developing apparatus housing 30 for re-use by a conveyer within impression member 20. The tape 10 is imaged by recording head 16 and developed by powder toner flicked on to it by cylindrical brush 42, then is stopped to allow transfer of a line by a helical ridge 26 on the constantlyrotating impression member. When the tape is fed forward again erase head 18 removes the magnetic image and blades 50 remove residual toner. The conveyer comprises helical members 36 and 38, rotating with the impression member. The helical member 36 extends from one end of the interior of the impression member to the other, and extends into the housings 30, 32 at its ends.
Patent GB-1430335-A (GB)
Title: Shuttleless loom
IPC: D03D47/36
Filed: 1974-05-09
Abstract: 1430335 Shuttleless looms PATAX TRUST REG 9 May 1974 [1 June 1973] 20427/74 Heading D1E A weft thread storage device for a shuttleless loom comprises a thread clamp 5 and pivotable weft withdrawing arms 4 mounted on pivoting members 18 such that when a cam shaft 21 rotates a follower 10 causes a selected cam finger 13a to cause a member 5c to move downwardly opening clamp 5 whilst allowing a bar 16 fastened to member 5c to cause movement of the arms 4 to allow thread to be withdrawn at constant tension. Further rotation of cam shaft 21 allows clamp 5 to close and arm 4 to move to withdraw weft from the supply. The apparatus may be used to supply several wefts in each clamp and several sets of apparatus may be provided with a common cam shaft 21.
Patent GB-788409-A (GB)
Title: Improvements in or relating to the manufacture of spirit levels
IPC: C03B23/09
Filed: 1955-07-14
Abstract: 788,409. Levels. THOMAS, H. R. June 19, 1956 [July 14, 1955], No. 20458/55. Class 97(2) [Also in Group XXIII] In making a glass chamber 9 containing liquid and a gas bubble 10 for a spirit level, the inner face. of the closed end of a piece of glass tubing is shaped to the required concavity by heating the tubing and inserting a convex-ended mandrel therein and pressing the outer face against a former. The open end of the tubing is drawn to a capillary and is sealed after the liquid has been introduced. A circular mark may be formed on the outer face of the chamber by moulding, etching, or deposition of a ceramic marking.
Patent GB-477855-A (GB)
Title: Improvements relating to spring snap catches or fastenings for doors and the like
IPC: E05C19/02
Filed: 1936-07-24
Abstract: 477,855. Spring catches. SHOWELL & SONS, Ltd., E., PEARCE, A. J., and BRADBURN, H. G. July 24,1936, No. 20488. [Class 44] In a catch of the kind yielding to pull or pressure a cylindrical round-ended member 11 which engages with the usual catch plate, not shown, has adjustable screw-threaded engagement 11b with a spring-pressed sliding member 15 guided in a housing 14 with an aperture 14b through which a reduced shank 11a on member 11 extends. A spring 16 bears against the yoke of member 14 and against member 15 or an interposed washer 17. Member 15 is of annular form with ears 15a guided in slots 14e and removal of member 11 may be prevented by enlarging the end of shank 11a as shown. The periphery of member 11 may be milled to facilitate adjustment by hand. Member 14 is secured to the fixing plate 10 provided with screw-holes 10b, and as shown this is effected by providing the holes 10b with tubular burrs 10c which pass through apertures 14d in member 14 and are riveted over. Member 14 may be of simple bent strip form, Fig. 7 or may provide a cylindrical housing, Fig. 9, in which case the body has slits 14g to allow the ears 15a to be sprung into the slots 14e.
Patent GB-773445-A (GB)
Title: Data recording equipment
IPC: G06K1/12
Filed: 1955-07-15
Abstract: 773,445. Checking receipts; digital electric calculating-apparatus. STANDARD TELEPHONES & CABLES, Ltd. July 15, 1955 [July 19, 1954], No. 20530/55. Class 106 (1).  [Also in Group XX] Equipment for recording data related to documents comprises holding equipment for displaying documents one. at a time at an. inspection position and at a photographing position, means for actuating a computer at the photographing position in accordance with data relevant to a document displayed at the inspection position, means. associated with the computer for displaying a visible record of a result of a computation, and photographic equipment for simultaneously making a photographic record of the face of a displayed document and of the visible record of a computation result. The equipment described produces a microfilm record for a bank of both the front and the back of a check or credit slip 8 together with account data, including the customer's old and new balance, printed on sheet 19 by adding and subtracting machine 2. The documents 8 are secured by clips 9, Fig. 5, to a belt 7 which is advanced stepwise by energizing electromagnetic clutch 24, each step bringing a document from the right-hand inspection position to the lefthand photographing position. In operation, the data relevant to the check or slip 8 at the inspection position is entered by a ledger clerk through keyboard 25 into an electrical storage device 26 comprising, e.g. relay chains, gas tubes or a magnetic drum. The clerk then operates step key 29 which pulses lines 30 to energize clutch 24 and line 31 to transfer the stored data to the machine 2 which comprises levers remotely actuated by electric solenoids. When the required arithmetical and printing operations are completed, a cam 33 closes contacts 32, and when the belt 7 has advanced the check or slip to the photographing position, contacts 41 are grounded through metal insert 40. A magnet 34 is then energized and actuates detent 36 to release the shutter and thereafter to advance the film in camera 18. The photographic record is taken inside hood 3, Fig. 2, which houses the machine 2 and a portion of the belt 7 guided by strips 5 and 6. The belt is transparent or has windows 9<SP>1</SP> whereby the back of the document 8 can be displayed to the camera by means of mirrors 10, 11.
Patent GB-789222-A (GB)
Title: Improvements relating to stoves, boilers and the like
IPC: F24B5/02
Filed: 1954-07-14
Abstract: 789,222. Chimneys &c. APOSTOLIDES, M. A. July 14, 1955 [July 14, 1954], No. 20563/54. Class 25 In the metal flue gas duct 11, Fig. 1, electric resistances 12a...12d, are so mounted that the flue gas flow passes through said resistances successively. Each resistance wire may be coiled and spirally arranged, or aranged in a zig-zag manner, or embedded in a refractory material. In the latter case gas flow passages are formed in, the material preferably disposed so as to cause swirling of the gases passing through. The resistances are so connected in an electric circuit that they are individually controlled. Fig. 2 shows an arrangement where the flue gas flow rate is increased by feeding air by means of a fan 15 into the gas flow path prior to its entry into the nue duct. Specification 206,118 [Class 25] is referred to.
Patent GB-878065-A (GB)
Title: A method for the purification of acetone
Filed: 1959-06-16
Abstract: A method for continuously purifying acetone by alkali treatment while avoiding the use of moving parts, and subsequent distillation comprises treating the crude acetone in a fine dispersion in countercurrent with dilute aqueous alkaline lye in a concentration of approximately 15-30% by weight at about 40-90 DEG C. whilst ensuring that the fine dispersion of the acetone is maintained, water being added continuously or from time to time to the lye or the acetone in a quantity corresponding to the quantity of water contained in the acetone withdrawn, and separating the acetone from the lye and distilling it.  A packed tower or one with other baffling systems such as perforated trays may be used to maintain the fine dispersion. The acetone may be introduced at right angles to the current of lye, if desired in several streams.  The temperature and pressure are preferably maintained such that the acetone gently boils in the upper part of the washer, acetone being returned as reflux in a reflux ratio of about 1 : 2-5.  A pressure of about 0.5 to about 2 atmospheres is advantageous.
Patent GB-335979-A (GB)
Title: Improvements relating to carburettors for use in connection with internal combustion engines
IPC: F02M19/04
Filed: 1929-07-05
Abstract: 335,979. Wineberg, F. J. July 5, 1929. Closure members, lift.- A needle or like valve controlling the fuel orifice of a carburettor comprises a series of annular tapering collars a separated by annular channels c. The collars are individually of such a depth relatively to the depth of the orifice, and so spaced from one another, that, for for any position of the needle valve, a part at least of one of the collars is contained in the orifice and presents a sharp edge a against which the issuing fuel impinges. To effect this, the combined depth of a collar and its following channel is equal to or less than the depth of the orifice b. The channels may be of the form shown in broken lines.
Patent GB-1467932-A (GB)
Title: Position-responsive hydraulic cylinder
IPC: F15B9/12
Filed: 1975-05-15
Abstract: 1467932 Fluid-pressure servomotor systems DEERE & CO 15 May 1975 [15 May 1974] 20671/75 Heading G3P A hydraulic actuator, e.g. for positioning a tractor-drawn plough, comprises a piston 24 slidable within a cylinder 12 under the control of a valve 38 operated by a position selector (63), Fig. 1 (not shown), a screw-type feedback mechanism 100 being connected between piston-rod 16 and control valve 38 so as to restore the latter to a neutral position when the piston has moved to a position corresponding to that set by the selector. Valve 38 comprises a landed sleeve 51 axially slidable within a fixed bore 37 to control fluid-flow from an inlet port 42 to one or other of ports 40, 44 communicating respectively via passages 48, 46 with chambers 26, 28 on opposite sides of piston 24. Sleeve 51 also controls flow from the chambers to exhaust passage 36. Axial movement of sleeve 51 is limited by abutment surfaces 98, 98A. A further sleeve 52 is disposed within sleeves 51 and connected thereto by an arrangement 49 comprising a spring 90 held between washers 92, 92A retained by rings 94, 94A and 96, 96A. One end of sleeve 52 is threaded within a nut 76 externally slotted to receive two lugs on a bifurcated arm 68. The latter is fixed to a pivot shaft (66) Figs. 1, 4 (not shown) carrying a crank (64) connected via a cable (62) to the operator lever (58) of the position selector (63). Should lever (58) be moved to an excessive position, the spring arrangement 49 permits inner sleeve 52 to move relative to sleeve 51 after the latter has engaged abutment surfaces 98, 98A. Feedback mechanism 100 comprises an axially  fixed screw 104 engaged by pins 106 on piston-rod 16 such that movement of the latter causes the screw to rotate within bearing 102. The screw has an extension 108 slidably passing through an oblong aperture 82 in the end of sleeve 52. Thus rotation of screw 104 is transmitted to sleeve 52 which, by virtue of its threaded engagement within non-rotatable nut 76, is caused to move axially together with outer sleeve 51 until valve 38 has been restored to its neutral position. A free-float valve 110 places both actuator chambers 26, 28 in communication with exhaust when operator lever (58) is moved into a minimum rod extension position. A scale (23) indicates the degree of rod extension. In a modification Fig. 6 (not shown) inner sleeve 51 and connecting spring 90 are not provided.
Patent GB-688859-A (GB)
Title: Improvements in or relating to the production of glass-to-metal seals
IPC: C03C27/04
Filed: 1950-08-22
Abstract: An alloy suitable for sealing to glass contains up to 0.2 per cent carbon, 10-30 per cent chromium, 0.1-10 per cent cobalt and the balance iron.  It may also contain small quantities of one or more of the following: titanium, niobium, tantalum, aluminium, molybdenum, vanadium or tungsten.  Two examples are given: (1) 0.07 per cent carbon, 0.42 per cent silicon, 0.67 per cent manganese, 21.14 per cent chromium, 2.2 per cent cobalt and the balance iron; (2) 0.09 per cent carbon, 0.3 per cent silicon, 0.7 per cent manganese, 17.0 per cent chromium, 1.8 per cent cobalt and the balance iron. Specifications 392,421 and 417,751 are referred to.
Patent GB-154319-A (GB)
Title: Improvements in or relating to the manufacture of artificial fuel
IPC: C10L5/10
Filed: 1919-08-23
Abstract: 154,319. Leadbeater, J. W. Aug. 23, 1919. Composition fuel.-Black or lower strata peat, in its natural moist state as it leaves the bog, is finely disintegrated and mixed with ground caustic lime and with pitch or tar and fine coal. After these ingredients have been well mixed in a mixing machine, the mixture is ready for use without being pressed or formed into blocks, and can be handled in the same manner as ordinary coal. The caustic lime may be replaced by hydrated lime, or by one or more alkalies having similar properties to lime. The proportions employed may be as follows, namelv, peat 168 lb., pitch 8 lb., lime 4 lb., coal 270 lb.
Patent GB-835608-A (GB)
Title: Improvements in and relating to a method of producing electro-stencil blanks and a stencil blank produced by the method
IPC: B41N1/24
Filed: 1957-07-01
Abstract: 835,608. Stencils. ZEUTHER & AAGAARD A. S. July 1, 1957 [July 6, 1956], No. 20747/57. Drawings to Specification. Class 100(2) A method of producing electro-stencil blanks comprising a backing web, a contact layer and a stencil layer includes the steps of applying to a length of a backing web in the longitudinal direction a contact layer and a stencil layer over the contact layer, while leaving a continuous strip of the backing layer along one of its edges uncovered by the contact layer and the stencil layer, and cutting the length of material thus produced transversely to form electro-stencil blanks, the head of each blank being constituted by a portion of the uncovered part of the backing web. The backing web, contact layer and stencil layer may be paper, carbon and plastic respectively. The backing web is about 48 cm. wide, of which a marginal portion of about 10 cm. is uncovered by the contact and stencil layers. The stencil layer projects about 2 cm. beyond the contact layer, and the projecting edge strip adheres directly to the backing web. The backing web is provided with a longitudinal line of weakness aligned with the edge of the contact layer, and can be torn off, so as to leave the stencil area uncovered in what is to be the design or working area, the contact layer where remaining on the stencil layer or on the removed backing web, while the edge part of the backing web remains as the stencil heading. The projecting edge of the backing web (heading portion) may be folded over and glued to itself, its edge resting on the edge of the stencil layer which projects beyond the contact layer. A strip of cleaning material is applied to the projecting edge of the stencil layer, cr to the folded-over edge of the backing web resting on said projecting edge, for cleaning needles used to perforate the heading. The cleaning material is pressed, sprinkled cr blown on to a binding agent applied first by a roller, or the stencil layer may be used as the binding agent.