baber/WOPTO huggingface dataset:
Patent GB-1270923-A (GB)
Title: Linearly moving indicator
Inventor: ECKETT SIDNEY WALLACE
IPC: G01D5/04
Filed: 1968-03-12
Abstract: 1,270,923. Linkwork. NALDER BROS. & THOMPSON Ltd. 30 April, 1969 [12 March, 1968], No. 12021/68. Heading F2K. [Also in Division G1] In measuring-apparatus (such as a moving- coil galvanometer) straight line movement of a painter 30 over a scale 31 is obtained proportional to angular movement of an arm 13 (which is proportional to a quantity to be measured) by suitably choosing the dimensions of linkwork formed by pivoting the pointer arm 18 on the arm 13 and restraining the end 22 of arm 18 to travel along a straight line normal to and intersecting the axis of rotation 14 of the arm 13, the straight line being defined by a thread 25 which passes around eccentrically mounted rollers 26 so that its height can be adjusted and which is tensioned by connecting at least one of its ends to a spring 27. The thread passes through a slot in the turned-down end 22 of the arm 18 and may be made of a low friction 0À005 inch diameter filament yarn. The pivotal connection 17, Fig. 5, between the two arms 13, 18 comprises an aluminium tube 33 secured by a part 34 to the arm 18 and with an aperture 36 in one side within which the arm 13 extends for connection to a steel pin 37 with point bearings 38 in jewels 35. Zero adjustment can be made through a threaded rod 43.
Patent GB-397966-A (GB)
Title: Improvements in or relating to joints for resisting high pressure
IPC: F16L17/08
Filed: 1932-04-27
Abstract: 397,966. Joint-making packing. IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London, and MANNING, W. R. D., Winnington Hall, Northwich, Cheshire. April 27,1932, No. 12157. [Class 122 (iii).] In a joint subjected to high pressures a hard metal packing ring 8, having a double convex outer surface 9, is forced into coaxial recesses 6, 7 in the members to be joined. The inner periphery of the ring may also be corrugated.
Patent GB-511882-A (GB)
Title: Improvements in and relating to ventilators
IPC: F23L17/08
Filed: 1938-04-23
Abstract: 511,882. Ventilators. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., and CONROY, M. J. April 23, 1938, No. 12198. [Class 137] A ventilator for the roof of a building comprises an eduction pipe a having an upwardly flared end portion, a storm band b around its end, a baseless cone e arranged above the eduction pipe a and a louvre ring f between the pipe a and the cone e; the louvre ring and the cone being greater in diameter than the largest diameter of the pipe end.
Patent GB-418595-A (GB)
Title: Improved appliance for teaching children to walk
IPC: A47D13/04
Filed: 1933-04-27
Abstract: 418,595. Appliances for teaching children to walk. HUDSON, J. N., 76, Brighton Grove, Newcastle-on-Tyne. April 27, 1933, No. 12248. [Class 132 (i).] An appliance for teaching children to walk comprises an annular top, a plurality of downwardly extending legs each terminating in a castor and a circular resilient member encompassing the legs so as to constitute a peripheral buffer, the resilient member being of tubular, channelled or other hollow radial cross-section for increasing the resilience. As shown, the appliance comprises an annular top 10 having legs 11 provided with castors 12 and carrying hooks 13 supporting an annular buffer 14 of U-shape cross-section obtained by longitudinally dividing a tyre-cover into two. A weight 15 formed of an endless ring of lead pipe is disposed in the buffer 14. In a modification a complete tyre cover is used, and the weight is disposed either inside the cover or carried on the hooks. In a further modification a bicycle wheel rim is attached to the legs, and is provided with an outer tyre cover and an inner tube, which latter may be inflated. In a further modification the lower ends of the legs are secured to blocks, and the buffer is attached to the lower surfaces of the blocks by the fixing members of the castors. The outer edge of the buffer may be provided with a longitudinally split rubber or like tube forming a beading. The buffer may be supported on springs. A tray may be supported on the device, or folding flaps may be provided, to convert it into a dinner wagon.
Patent GB-251439-A (GB)
Title: Improvements in or relating to courts and appliances for practising and playing tennis and the like
IPC: A63B69/00
Filed: 1925-05-12
Abstract: 251,439. Hunt, C. L. Cooper-. May 12,1925. Lawn-tennis practising appliances.-Lawn tennis and like games are practised upon a floor marked to represent a portion of a lawn tennis or like court, and having, instead of a tennis net,. a wall bearing a marked line representing the height and situation of the net, the wall having above the marking line a flat, rounded or faceted rebound surface sloping upwardly and backwardly relatively to the court. As shown the floor ismarked out by lines 12, 13, as half a lawn tennis court for singles. The wall has a vertical portion 20, three feet high, surmounted by a sloping portion 21 which may be flat or faceted. A line 14 represents the height of the net. The line 12 may be thirty-nine feet from the wall. The upper part of the wall may slope from the vertical by five to five and half inches in five feet. A stop net 19 supported by standards 16 may be provided to enclose the sides and back of the court. The portion of the stop net immediately over the wall slopes forwardly at an angle of approximately 45‹.
Patent GB-1036593-A (GB)
Title: Fungicidal compositions
Inventor: CROUCH ALAN EDGAR
IPC: D01F1/10
Filed: 1962-03-31
Abstract: A fungicidal composition contains as active ingredient tetrachloro-o-cresol or a salt thereof and one or more of the following:- surface active agents, solid diluents and organic non solvents.  Specified salts are those formed with metals e.g. Li, Na, Cu, K or Ca, ammonia or alkylamines.  Other fungicides may be present e.g. sulphur, cuprousoxide or copper oxychloride, nickel hydroxide, TM. T. D or creosote.  The active ingredients may be formulated as solutions, suspensions, dusts, wettable powders and dispersions to treat wood, fabrics, paints, plastics, varnishes, p  glues and plaster.  The compositions may contain anionic, non-ionic or cationic surface active agents, stickers and antiflocculants.
Patent GB-663067-A (GB)
Title: Improvements in or relating to the production of sintered metal products for anisotropic permanent magnets
Inventor: GARVIN STEFAN JUAN
IPC: C22C1/04
Filed: 1948-05-06
Abstract: In an improvement or modification of the parent Specification, in conjunction with the use of the protective porous mass therein specified, there is present in the composition to be sintered a small proportion of a substance having a strong affinity for carbon, e.g. Ti, V, B, Nb, Zr or rare earth metals such as cerium or an alloy or hydride of a metal having a strong affinity for carbon.  Thus the composition may contain 0.1-2 per cent Ti, 0.1-4 per cent Nb or 0.1-2.5 per cent V.
Patent GB-412741-A (GB)
Title: Improvements in moulds for casting artificial stone, cement concrete and like material
IPC: B28B7/00
Filed: 1933-05-01
Abstract: 412,741. Moulding artificial stone, concrete, &c. WHITING, W. G., 14, Maple Avenue, Maidstone, Kent. May 1, 1933, No. 12560. [Class 87 (ii).] A mould for casting artificial stone, cement concrete and the like comprises a base plate a, furnished with a raised panel and formed with a groove f along the foot of each of two opposite shoulders formed by the panel, and four interabutting side walls d, e, of which the walls d fit into the grooves f. The panel may be in one piece and flat or profiled or it may consist of a raised batten b and a profiled board c. The grooves may be formed across the shorter dimension of the base. The walls may be held together by screw clamps engaging the walls e which may be provided with fillets h engaging the walls d. The fillets h may be bevelled so as to aid quick release of the walls e. The shoulders formed by the members b, c may be undercut to allow the walls e to be swung outwards on release. The side walls may be placed at other than right-angles to each other. In use, a coating of loose sand is placed on top of the material in the mould and a flat surface firmly applied and clamped to the mould. The mould is then inverted and dismantled leaving the moulded article on the flat surface. According to the Provisional Specification, the grooves may be dispensed with and the side walls slid broadside from or towards the shoulders of the panel. The side walls are wide enough to stand upright and may be of channel section with flanges directed outwardly from the panel. One pair of opposite walls may extend to the termination of the flanges on the other walls and are rebated to receive the ends thereof. The clamps may be bolts engaging lugs outstanding at 45‹ from the walls.
Patent GB-1217513-A (GB)
Title: Improvements in or relating to the manufacture of pottery ware
Inventor: BRADSHAW ARTHUR
IPC: B28B13/02
Filed: 1967-03-17
Abstract: 1,217,513. Forming clay slugs by extrusion. SERVICE (ENGS.) Ltd. 18 March, 1968 [17 March, 1967], No. 12602/67. Heading B5A. Slugs of clay Care cut. from the extrudate of a screw extruder 12 by means of a knife 112, each slug is conveyed with its axis substantially horizontal to the neighbourhood of a mould 81 by means of a cradle 48, cradle 48 is swing into a vertical position above mould 18 to bring the slug into contact with a further cradle 66 and the slug is pushed out of the cradles into firm contact with the base of mould 18 by means of a vertically reciprocable piston 86, see also Fig. 2 (not shown). Cradle 48 is mounted on a block 29 slidable along horizontal bars 24 under the action of a piston and cylinder device 30 and is swung to a vertical position as block 29 is moved in a downstream direction by cooperation between an arm 42 fixed to the cradle and a cam 62. Piston 86, provided with a loose rubber cover 88, is actuated when cradle 66 is contacted by the slug and in turn contacts microswitch 74, provided that a further microswitch (not shown) has been actuated by a mould 18 moving to the clay-receiving position. On retraction of block 29 upstream, arm 44 (at this stage vertically disposed) contacts a cam 52 to swing cradle 48 once more into a horizontal position. The cutting mechanism and actuation thereof is essentially as described in specification 1,140,848, but in the present case the mechanism is also linked to the actuation of a microswitch 84 which indicates the presence or otherwise of cradle 48 in a clayreceiving position. Mould 18 is one of a number fixed to a turntable 16 and the whole apparatus may form part of a cup-making plant.
Patent GB-272832-A (GB)
Title: Improvements in the manufacture and production of valuable hydrocarbons and derivatives thereof from products of the distillation or extraction of coal and the like
IPC: C10G1/06
Filed: 1926-02-11
Abstract: 272,832. I. G. Farbenindustrie Akt.- Ges. Feb. 11, 1926. Addition to 247,584. Hydrogenation, destructive. - The process of hydrogenizing carbonaceous materials in presence of added combined sulphur as described in the parent Specification and in Specification 247,585 is applied to the treatment of the tar-like products obtained by the destructive hydrogenation of carbonaceous materials, to coumarone resins or other conversion products of the distillation and extraction products of carbonaceous solids, and to lignite wax and the like materials.
Patent GB-528252-A (GB)
Title: Feed-back amplifier filter
IPC: H03H11/12
Filed: 1939-04-27
Abstract: 528,252. Valve circuits for wireless reception. HAZELTINE CORPORATION. April 27, 1939, No. 12692. Convention date, May 9, 1938. [Class 40 (v)] An amplifier-filter section adapted to be matched to other filter sections on an image impedance basis comprises two reactance arms Cl, C2 connected across pairs of input and output terminals 6, 7 respectively, a valve 10 coupling the arms in the forward direction and further means coupling the arms with reversed polarity in the other direction. In the low-pass circuit shown in Fig. 1, the further means comprises a screen-grid valve 11 with the output taken from the screen 9. It is shown in the Specification that the section has image impedances corresponding to constantk mid-shunt image impedances and it may thus be directly connected to one or more further constant-k section 12 ... 14. The screen-grid valve 11 may be replaced by two valves in cascade or by a single valve combined with a phase-reversing transformer. In another arrangement, Fig. 4 (not shown), for a band-pass circuit, the back-coupling means comprises a triode valve with its input and output circuits coupled magnetically to the output and input circuits respectively of the valve 10. In the low-pass circuit shown in Fig. 5, the back coupling comprises resistances 151, 15<SP>11</SP> connected between anode and grid, and in order to provide a degree of regeneration at the cut-off frequency to compensate for loss in the resistances, phase changing means 25 ... 27 may be added. An inductance 22 in series with condenser 23 in the input reactance arm completes an m-derived termination having an image impedance which matches a constant resistance 30 connected across the input terminals. A further arrangement, Fig. 6, for a band-pass circuit comprises two amplifier-filter sections in cascade, the' shunt reactance arms being constituted by condenser 58, the primary and secondary windings of transformer 52, and condenser 68. Damping for the whole system is provided by resistances 59, 70 connected at the ends. Specification 419,784 is referred to.
Patent GB-1372750-A (GB)
Title: Rotational data storage devices
Inventor: FARR WILLIAM W JR
IPC: G06F17/30
Filed: 1972-03-17
Abstract: 1372750 Data storage HONEYWELL INFORMATION SYSTEMS Inc 17 March 1972 [24 June 1971] 12726/72 Heading G4C A rotational data storage device, i.e. magnetic drum or disc, stores one or more records each comprising a number of pages (segments), each holding data, a forward pointer indicating the address of the next page in the record and a reverse pointer indicating the address of previous page in the record, e.g. for a virtual memory system.  The drum or disc has a number of circumferential tracks, each track being divided, for example, into eight pages. The first page is linked to the second and last pages by the pointers, the second is linked to the first and third, and so on. Three possible page layouts are shown in Figs. 2A-2C in which the pointers have different positions within the page together with resynchronizing patterns, check bytes, &c. The Apparatus (Fig. 4, not shown).-This comprises a processor, the rotational storage device and another memory holding a page (segment) buffer which contains page addresses and a data buffer which holds data from the rotational device (after reading) or from a data source (before writing). Writing.-The last page address, the first page address and the second page address are accessed from the page buffer, the data is written and the various forward and reverse pointers are updated. Read.-The page buffers may hold only the first page address and the pages are read off in sequence. Editing.-The pointers can be changed without changing the data so that records can be added and deleted by this means. It is stated that the above functions can be effected by a program instead of by the apparatus. The generation of the page buffer in magnetic core or semiconductor memory is also described (Figs. 8 and 9, not shown).
Patent GB-948632-A (GB)
Title: Analogue to digital converter
Inventor: BERMAN NELSON
IPC: H03M1/00
Filed: 1960-04-09
Abstract: 948,632. Electric selective signalling systems. UNITED AIRCRAFT CORPORATION. April 9,1960, No. 12732/60. Heading G4H. In a shaft digitiser a magnetic circuit is influenced by the proximity of a movable member carried by the shaft so as to produce digital signals representative of the position of the shaft. In a first embodiment Figs. 1 and 2 the rotor 24 of a squirrel cage motor having a central stator 18 carries, on four circumferential tracks magnetic recordings of four differentfrequency signals. As the rotor rotates these magnetic recordings induce signals in four coils 38 mounted on annular shaped cores 36 having air gaps 40 and 42, and the relative amplitudes of these signals depends upon whether the outwardly pointing air gaps are bridged or not by segments 46 of magnetic material mounted on a member 44 displaceable by a stub axle shaft 52. Thus the pattern of signals induced in windings 38 represents the angular position of the shaft 52 and since the signals are of different frequencies they can be transmitted over a single lead. Two modifications of this embodiment are described. In the first (Fig. 5 not shown) the member 44 carrying the segments 46 is arranged to be in between the magnetic recordings and the cores 36, and in the second (Figs. 6 to 9 not shown) the magnetic recordings are replaced by rings of teeth-like projections. This modification also shows that the number of teeth per ring can be different, giving different frequency signals, as in Fig. 1 or the number can be the same, giving signals of the same frequency. A second embodiment is described Fig. 12 (and Figs. 10 and 11 not shown) in which the electric signals are not generated locally by a continuously rotating motor. This embodiment comprises essentially four transformers (taking the place of cores 36 of Fig. 1) having primaries 120 fed with A.C. and secondary windings 122, the coupling between the primary winding and the secondary windings being varied in accordance with the angular position of the shaft.
Patent GB-802338-A (GB)
Title: Improvements in or relating to the steam sterilization of liquids and semi-liquids
IPC: A23L2/46
Filed: 1956-04-25
Abstract: 802,338. Sterilizing liquids. CIBOIT, J. J. April 25, 1956 [April 29, 1955], No. 12739/56. Class 49. In apparatus for pasteurizing or sterilizing liquid or semi-liquid product comprising a chamber wherein the product is subjected to steam, a chamber wherein the steamed product is expanded, and a steam-heated surface heat exchanger for preliminary heating of the product, there is provided, in the pipe feeding steam to the surface heat exchanger, a valve controlled by a thermostatic relay responsive to difference between the temperature in the expansion chamber and that of the product entering the steam treatment chamber, so as to obtain a predetermined dilution, preferably no dilution, of the product being pasteurized or sterilized. Cold milk or cream fed by a pipe 2 is injected, after being heated to a temperature tl, through an atomizing nozzle 3 into a chamber 1 and steam fed by a pipe 4 is injected into the chamber at 5, the milk or cream collecting in the lower part of the chamber 1 is fed through an atomizing nozzle 7 into an expansion chamber 6, and the treated milk or cream, at a temperature t2, collecting in the lower part of the chamber 6 is removed by a pump 8, the milk or cream in the pipe 2 being caused to flow through a surface heat exchanger 9 which is supplied with sufficient steam by a pipe 10, independently of the steam supply to the chamber 1, to heat the milk or cream to the temperature t1; a valve 12 in the steam supply pipe 10 controls supply of steam to the heat exchanger 9 in response to a relay 13, which measures, through connections 14 and 15, any difference between t1 and t2, tl being maintained substantially equal to t2 when dilution of the milk or cream is to be avoided. The cold milk or cream may be heated in a surface heat exchanger supplied with steam from the expansion chamber 6 before it is heated to the temperature tl in the heat exchanger 9. Specification 750,027 is referred to.
Patent GB-1495547-A (GB)
Title: Polymerisation catalyst
IPC: C08F4/00
Filed: 1974-03-22
Abstract: 1495547 Polymerization of olefins using supported catalysts BRITISH PETROLEUM CO Ltd 7 March 1975 [22 March 1974] 12793/74 Heading C3P [Also in Division B1] 1-olefins are polymerized in the presence of a catalyst formed by incorporating a chromium compound into a catalyst precursor and then heating at 100-1200‹ C., wherein the catalyst precursor has itself been formed by (i) adding a titanium compound to an inorganic oxide support which is one or more of silica, alumina, zirconia or thoria having chemisorbed surface hydroxyl groups and heating to 150-1200‹ C. and (ii) treating the product by carrying out the following steps (a) and (b) one or more times; (a) reacting the treated support with a hydroxylcontaining compound, e.g. water or an alcohol, to reform hydroxyl groups on its surface, and (b) adding a titanium compound to the product thereby produced and heating at 150-1200‹ C. The olefin feed material may be ethylene or mixtures of ethylene with up to 25% wt. of propylene, 1-butene, 1-pentene, 1-hexene, 4- methyl - 1 - pentene, 1,3 - butadiene or isoprene. The examples describe the production of polyethylene in isobutane using a catalyst prepared from silica, titanium tetraisopropylate and ditertbutyl chromate.
Patent GB-1376704-A (GB)
Title: Pilot valve controlled main valve
IPC: G05D16/10
Filed: 1973-03-16
Abstract: 1376704 Fluid pressure servomotor systems JOS SCHNEIDER & CO OPTISCHE WERKE 16 March 1973 [25 May 1972] 12796/73 Heading G3P A fluid pressure control valve controls the pressure fed to a load 21 in accordance with the current in an electromagnetic torque motor 1 and maintains it constant. The piston-like main valve member 19 is loaded by fluid pressure as well as by a spring. This fluid pressure is fed via duct 20, radial throttles 10, axial passage 11, and further radial throttles 12, into annular chamber 14 and thence via radial throttles 15 to the rear face of the main valve 19. Pressure in the annular chamber 14 is controlled by a variable throttle 8 of a pilot valve comprising a piston 5 and cylinder 16. Piston 5 moves under the influence of the torque motor 1, the armature 2 of which acts through a ball 4, and the pressure within the passage 11 acting on the end of it, the other end being closed by a piston 9 pressing against a ball 13. The cylinder 16 is adjustable by means of a threaded plug 18 and bears against cup springs 17. In another embodiment the ball 4 is replaced by a connecting member attached to the piston 5 and bearing upon a ball fixed in the armature 2. The connecting member may be made in two parts of materials chosen to give temperature compensation.
Patent GB-975614-A (GB)
Title: Headbox for a paper making machine
IPC: D21F1/06
Filed: 1963-04-01
Abstract: 975,614. Paper-making apparatus. DOMINION ENGINEERING WORKS Ltd. April 1, 1963 [Feb. 9, 1963], No. 12798/63. Heading D2A. A headbox 19 of a paper-making machine includes a stock distributer 11, a stock inlet chamber 12 which has a baffle 14 anchored in and extending across the chamber 12, the baffle being movable in and counter to the direction of stock flow about the point of anchorage to different positions of adjustment, and means for securing the baffle in the selected position. The baffle is of flexible material and has a bulbous lip 15 to the ends of which are attached rods which extend through slots in the side walls of chamber 12. Each rod has a ratchet and screw mechanism (Fig. 6 not shown) to adjust its position in its slot, and a cover plate on the inside of the slot to prevent leakage of pulp. Air vents 20 link chamber 12 with headbox 19 which is of the pressurised type. A second adjustable baffle may replace rigid baffle plate 23 while alternatively one or two horizontal baffles, Figs. 3 and 4 (not shown) may be used instead of the vertical baffle or baffles. In the latter case air vents 20 are replaced by an upwardly sloping top wall of chamber 12.