baber/WOPTO huggingface dataset:
Patent GB-258905-A (GB)
Title: Improvements in filters
IPC: B01D35/12
Filed: 1926-09-27
Abstract: 258,905. Zwicky, J. Sept. 26, 1925, [Convention date]. Rotary cylindrical valves.-The flow of liqud from inlet 2 to outlet 3 through apparatus comprising two strainers 9 is controlled by a rotary cylindrical valve 12 formed in two parts pressed apart by springs 18. With the valve in the position shown the ports of the valve direct the liquid through the left-hand strainer. If the valve is turned through 180‹ the liquid passes through the right-hand strainer; if through 90‹ it passes direct from the inlet 2 to the outlet 3; if through 45‹ the flow of liquid is stopped. If one portion of the valve is removed, reversed endwise and replaced and the valve turned through 45‹, the liquid will be passed through the strainers successively.
Patent GB-983447-A (GB)
Title: Improvements in or relating to directional aerials
Inventor: RADFORD MATTHEW FREDERICK
IPC: H01Q17/00
Filed: 1961-07-03
Abstract: 983,447. Aerials. MARCONI CO. Ltd. May 10, 1962 [July 3, 1961], No. 23920/61. Heading H4A. The Specification discloses several types of logarithmic wide band aerial systems each comprising an array of dipoles or folded dipoles resonant at different frequencies throughout the band and which are constructed so that the effective aerial aperture and beam width of the system are constant over the entire band. These characteristics are achieved by incorporating one or more of the following features: (a) making the feeder and dipole elements of relatively highly resistive material (b) varying the impedance of the feeder along its length e.g. by means of a feeder of tapering cross section or of a pair of feeders running at a slight angle to one another (c) mounting an aerial having copper radiating elements and feeders on a panel of " lossy " dielectric material (d) making the cross sectional areas of the individual elements of the array (c) different or when these are folded dipoles by having the ends of the folds of different lengths. Fig. 1 shows an array of twelve dipoles logarithmically spaced and formed as copper deposits on a " lossy " panel P, one half of each element being on one side of the panel, the other half being on the other side as shown by the dotted lines. The elements on one side are joined by a feeder, in the form of a copper deposit and to which is soldered along its length the outer core C2 of the coaxial feeder. The inner core C1 of the coaxial feeder is joined to the remote end of a similar feeder deposited on the reverse side of the panel. A similar arrangement utilizing feeders of tapering cross - section is disclosed (Fig. 3, not shown). The elements in the form of folded dipoles may be deposited on one side only of the panel with the feeders side by side (Fig. 4, not shown). Fig. 6 discloses a similar array made of highly resistive wire and not mounted on a panel, the constant effective aperture over the operating band being achieved by decreasing towards the lower-frequency end of the array the impedance of the loops constituting the dipoles by decreasing the spacing between the X and Y conductors from a maximum for the shortest dipole to a minimum for the longest. A " wire " array in which the feeders taper towards each other is disclosed (Fig. 7, not shown).
Patent GB-820620-A (GB)
Title: Extrusion of organic thermoplastic materials
Inventor: PHIPPS JOHN WILDEY
IPC: B29C48/10
Filed: 1955-08-22
Abstract: A tubular film of thermoplastic material, e.g. polyethylene terephthalate, is formed by feeding the material through a pipe 1 and an annular passage 3 to an extrusion orifice.  The material is cooled in the die by a liquid, e.g. a eutectic mixture of diphenyl and diphenyl oxide, which is caused to boil in chambers 5, 51 by the heat extracted from the material.  A coolant is <PICT:0820620/IV (a)/1> passed through rings 6, 61 to condense vapour in the reservoirs 5,51. The die is heated by electrical units 7, 71 to bring it to the required temperature at the commencement of extrusion; it is surrounded by lagging 8.  The walls of the die may be parallel or may converge towards the extrusion orifice.  In a modification, the cooling chamber may be omitted from the core.  The tube may be removed at a rate greater than that of extrusion to cause thinning of the tube.
Patent GB-361399-A (GB)
Title: Improvements in the fastening of shoes
IPC: A43C11/14
Filed: 1930-08-12
Abstract: 361,399. Shoe fastenings. AIRD, A., George Street, Windsor, New South Wales, Australia. Aug. 12, 1930, No. 24098. [Class 17 (ii).] A fastening strap for c "Court" or like shoe is detach ably retained or the shoe by means providec on the under sur face of the waist of the shoe. As shown in Fig. 1, a one-piece strap 5 is held on the shoe by a pair of staples 6. The strap is given an angular formation midway of its length. Fig. 3 shows a twopart strap provided with loops 12 for co-operation with spring hooks 13 struck up from a metal plate 14 secured to the waist.
Patent GB-265132-A (GB)
Title: A detachable handle for potscourers
IPC: A47L13/022
Filed: 1926-09-30
Abstract: 265,132. Ruck, J. Jan. 26, 1926, [Convention date]. Scrapors, pan and like. -A pot scourer i is secured to a handle g by a rod e with a bottom toothed disc g which rod is passed through the scourer and is screwed into a nut in the upper part k of the handle, a cup shaped part b with toothed edge on the handle collar c forming a gripping abutment for the upper side of the scourer.
Patent GB-636533-A (GB)
Title: Improvements in or relating to gear-grinding machines
IPC: B23F5/06
Filed: 1946-08-14
Abstract: 636,533. Grinding. BUHLER, H. Aug. 14, 1946, No. 24172. Convention date, Sept. 7, 1945. [Class 60] [Also in Group XXII] The plane narrow annular working faces of the grinding wheels 1 of a gear-grinding machine (see Group XXII) are each trued and adjusted by a device 37 having a lever gauge 38 provided with a plane diamond.
Patent GB-1394779-A (GB)
Title: Burner for liquid fuel
IPC: F02N19/06
Filed: 1973-05-21
Abstract: 1394779 Vapourizing burners; ignition devices MONARK-CRESENT AB 21 May 1973 [14 June 1972] 24176/73 Headings F4F and F4T A burner for liquid fuel comprises a vaporizing chamber 4 to which liquid fuel is supplied through a tube 1 the downstream end of which is located juxtaposed to the internal surface of chamber 4 so that surface tension of liquid fuel flowing from tube 1 spreads the fuel over the internal surface of the chamber, the downstream end of the tube being initially heated to vaporize fuel therein by an ignition member 5 which ignites the vaporized fuel. A burner chamber 6 surrounds and communicates with the chamber 4 and heats chamber 4 to a fuel vaporizing temperature whereupon the ignition member 5 is deactivated. Preferably the ignition member is a glow coil. Combustion air is supplied from channel 2 through swirl vanes 3.
Patent GB-914297-A (GB)
Title: Compound heel radius for bead seats of pneumatic tire wheels
IPC: B60B21/10
Filed: 1961-07-05
Abstract: 914,297. Cast metal wheels. GOODYEAR TIRE & RUBBER CO. July 5, 1961 [Sept. 19, 1960], No. 24245/61. Class 144 (2). A cast metal aeroplane wheel rim comprises an endless tapered bead seat 3 which connects into a radial bead-retaining flange 6 by an arcuate fillet 11 having the form of a quadrant of an ellipse which merges tangentially with the seat 3 and flange 6, the fillet portion merging with the bead seat 3 having a radius of curvature 13 which is from four to eight times that 14 where the fillet merges with the flange 6. Radius 15 is stated to be that of the conventional circular fillet 15A.
Patent GB-1287706-A (GB)
Title: Adjustable venturi gas scrubber
Inventor: BORESTA JOHN GIOVANNI
IPC: B01D47/10
Filed: 1971-04-19
Abstract: 1287706 Gas scrubber CHEMICAL CONSTRUCTION CORP 19 April 1971 [18 March 1970] 24261/71 Heading B1R In a gas scrubber, gas to be scrubbed enters at 5 and pases downwardly through a throat 23 at the bottom of a downwardly converging section 22 irrigated with liquid from a pipe 21, and passes upwardly through an annular bed of packing material 24 to a gas outlet 25, the free upto and cross-sectional area of the passage for the flow of gas through the throat 23 being varied by vertical movement of a baffle member 15. The baffle member 15 is carried by a shaft 14 extending through a liquid supply tank 8 which supplies liquid to the upper portion of the baffle member 15. Movement of the baffle may be controlled automatically in response to changes in the pressure drop between the gas inlet and outlet.
Patent GB-870607-A (GB)
Title: Improved radar training apparatus
Inventor: MARVIN RONALD ARTHUR
IPC: G01S7/40
Filed: 1957-07-31
Abstract: 870,607. Trainers for radio navigation. COMMUNICATIONS PATENTS Ltd. July 31, 1957, No. 24328/57. Class 40(7) A radar training apparatus comprises a source of bearing data representing the assumed angle by which the scanner is rotated from a reference position, a source of data representing the velocity of the radar carrying craft, a source of time-base signals, means for resolving the time-base signals in accordance with the bearing data, and summing means responsive both to the time-base signals and to signals derived from the velocity data and representative of the position of the craft, said summing means producing resultant time-base signals. The training apparatus described can produce either a true-motion or a relative display. To give a relative display, time-base signals at 5 are resolved into perpendicular components by a sine-cosine potentiometer 4 whose shaft 6 is rotated in accordance with the assumed rotation of the scanning aerial. The components are amplified and fed to the fixed deflection coils 2, 3 of the display tube 1. To obtain a true-motion display the time-base signals are obtained from potentiometer 35. The stator of synchro 18 is connected to the stator of a differential synchro 22 whose rotor is moved in accordance with the assumed heading of the radar-carrying craft with respect to north. This rotor is connected to the stator of synchro 26 which, therefore, carries currents whose amplitudes are representative of the assumed bearing of the scanner with respect to north. The rotor of synchro 26 takes up a position indicative of this assumed bearing, and turns the shaft of the potentiometer 35, to which time-base signals are fed. To obtain signals corresponding to the position of the radar carrying craft a signal proportional to the speed of the craft is resolved by a sine-cosine potentiometer 43, whose wipers are driven in accordance with the craft's heading. The resolved signals pass to integrating servo systems whose outputs represent the rectangular co-ordinates of the crafts position. These outputs are combined in time-base amplifiers 15, 16 with the time-base signals and fed to the deflection coils. Specification 814,392 is referred to.
Patent GB-721883-A (GB)
Title: Improvements relating to installations for heating buildings
IPC: F24F7/00
Filed: 1951-10-18
Abstract: 721,883. Ventilating buildings. GORNALL, J. Oct. 13, 1952 [Oct. 18, 1951], No. 24333/51. Class 137. [Also in Group XIII] The flue gases from a slow combustion stove 10 housed in a small chamber 11 on the ground floor of a multistoried building pass into a flue box 12 housed in a similar chamber 13 on an upper floor, and air circulates from the adjoining rooms through each chamber 11, 13 independently of the other, through openings 28, 29, 30, 31. The flue gases pass from the stove through a pipe 20 into the upper part of a casing 19, and from the lower part of the latter through a pipe 21 to a flue pipe 14 leading to the flue box 12, which contains a baffle 24. Dampers 22, 27 controlling short-circuiting openings are provided. The surfaces of the stove and smoke box may be fluted or ribbed.
Patent GB-240845-A (GB)
Title: Improvements in hoisting devices
IPC: B66D1/14
Filed: 1925-09-30
Abstract: 240,845. Avermaete, M. van. Oct. 1, 1924. [Convention date]. No Patent granted (Sealing fee not paid). Driving-gear for winding and paying-out apparatus; self-sustaining gear; brakes.-The drum F is connected to an internally-toothed ring E which meshes with planetary pinions D mounted on a rotatable disc C. The pinions D are in gear with a pinion B keyed to the driving shaft A. The rotation of the disc C can be stopped by a friction clutch K actuated by a hand lever I and cams J. Ratchet teeth on a cheek L fixed to the drum are engaged by pawls M mounted within a brake drum N. The drum N is held stationary during hoisting by a brake 0 which is taken off bv a hand lever when it is desired to lower. The Specification as open to inspection under Sect'. 91 (3) (a) contains also the description of a winch for hoisting heavier loads at two different speeds in which the drum F is replaced by two sprocket gears either of which can be connected by chain gearing to a drum comprising a winding part and a storage part and mounted on a shaft arranged parallel to the shaft' A. This subjectmatter does not appear in the Specification as accepted.
Patent GB-668832-A (GB)
Title: Improvements relating to mechanical shovels
Inventor: TINDALE JOHN BASIL
IPC: E02F3/34
Filed: 1948-09-18
Abstract: 668,832. Scoop arm machines. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 18, 1949. [Sept. 18, 1948] No. 24510/48. Class 68 (i). [Also in Group XXX] In a scoop arm machine of the type in which the scoop 1 is pivotally mounted on the end of an arm 2 itself pivotally mounted on a vehicle 4, the engine 11 of which propels the vehicle as well as providing the means to raise and lower the arm, the centre of gravity of the scoop is to the rear of its pivot supports 1a so that there is always a tendency for it to rotate so that its open face is presented to the rear of the vehicle. This is prevented by cables 13 secured at 14 to the side cheeks of the scoop and to the vehicle structure 4 at 15, the cables being maintained under tension by the weight of the scoop. The arm 2 and the cables 13 with their points of attachment la, 3, 14 and 15 to the scoop and to the vehicle structure form a parallelogram linkage with the result that the open face of the scoop is maintained uppermost when the scoop is clear of the ground. Once the scoop contacts the ground, further downward movement of the arm 2 causes it to rotate so that the open face of the scoop is directed forward and is driven into the material by the vehicle. The scoop is of the bottom dumping type, the back of the scoop being a hinged plate 18b whose position relative to the remainder of the scoop can be regulated by a cable 19 to give a plurality of different size apertures to facilitate dumping.
Patent GB-444687-A (GB)
Title: Improvements in machines for the kneading, milling or like treatment of plastic substances
IPC: B01F5/00
Filed: 1934-08-25
Abstract: 444,687. Kneading-apparatus. LEYLAND & BIRMINGHAM RUBBER CO., Ltd., Golden Hill Lane, and BUTCHER, H. J., Rocklands, Sandy Lane, both in Leyland, near Preston, Lancashire. Aug. 25, 1934, No. 24520. [Class 86] Apparatus for kneading &c. rubber &c. comprises a rotatable disc mounted in spaced relationship between a pair of end plates each having an inlet near the centre of the disc between which and the end plates the material is treated as it passes to discharge at the periphery. The disc 4 and end plates 5, 6 are hollow, the latter being mounted in side frames 7 adjustable by means of set screws 8 and connected by bolts 11. The spaces 9 may be tapered towards the periphery as shown, or parallel sided, and the disc is enclosed by a casing 13. The material is fed into the inlets 19 and is discharged by a shoot 21. The disc has a spiral serration, rib or groove to carry the material clear of the feed openings 19, and may have radial or spiral ribs extending to the periphery ; it may taper in thickness towards its edge.
Patent GB-408867-A (GB)
Title: Improvements in depth sounding apparatus
IPC: G01S1/72
Filed: 1933-09-04
Abstract: 408,867. Echo-sounding and distancemeasuring apparatus ; diaphragm vibrators. SUBMARINE SIGNAL CO., 160, State Street, Boston, U.S.A.-(Assignees of Williams, R. L. ; 109, Waban Hill Road, North Chestnut Hill, Massachusetts, U.S.A.) Sept. 4, 1933, No. 24525. Convention date, Nov. 11, 1932. [Classes 13 and 118 (ii).] In a system in which hammer blows are used the hammer is electrically armed and the energizing circuit is completed immediately after an impact to prevent a second blow. Resistances are gradually cut into the energizing circuit after the hammer has been raised so that a high resistance circuit is opened when the impulse is to be emitted. As shown the hammer has just been released by cam 5 opening contacts 6, 7. Cam 34 now closes contacts 28 to cut resistances 25, 26, 27 out of the circuit and then contacts 6, 7 are closed by 5 to re-energize 22 and re-arm the hammer, the time between the opening and closing of 6, 7 being just sufficient to allow 21 to strike the diaphragm but insufficient for the hammer to make a second blow. Spring sets 29 and 30 are opened and as the shaft continues to rotate cam 15 opens springs 30 to cut resistance 27 into the energizing circuit, then cam 14 opens 29 to add 26 and then 13 opens 28 so that resistances 25, 26 and 27 are all in use. Cam 11 now swings arm 8 to bring the roller 35 into the path of cam 5 so that during the next revolution of 5 the springs 6, 7 are opened to produce a blow. The cycle is repeated. The hammer, when released, is forced against diaphragm 20 by spring 23. Buffer springs may be provided to assist the prevention of a double blow.
Patent GB-1352933-A (GB)
Title: Brilliant or gem stone
IPC: A44C17/00
Filed: 1971-04-19
Abstract: 1352933 Gem stone COLORANT SCHMUCKSTEIN GmbH 19 April 1971 [28 March 1970] 24531/71 Heading A3H A gem stone has a pavilion 2 joined at a girdle plane 6 to a crown 3, and a table 7 parallel to the girdle plane, which has at least eleven sides, a pavilion facet extending from each side at an angle in the range 37 to 45, such that incident light normal to the table is internally reflected by two pavilion facets to emerge at a fan-out angle of 120' to 1257'. The crown facets may be offset relative to the pavilion facets.
Patent GB-1039398-A (GB)
Title: Improvements relating to the production of polyoxymethylene
IPC: C08G2/00
Filed: 1964-06-12
Abstract: Trioxane is polymerized by heating a particulate trioxane having a particle size less than 1000 microns to 50 DEG  to 56 DEG  C., irradiating this so heated trioxane with high energy ionizing radiation to initiate polymerization and ageing the irradiated trioxane at above 30 DEG  C. until a desired degree of polymerization has taken place.  Unreacted trioxane is extracted from the polymer with water or removed by evaporation and the polyoxymethylene produced may be ground to give particles having a major dimension less than 50 microns and a length to diameter ratio above 10 to 1.
Patent GB-1518522-A (GB)
Title: Process and apparatus for supporting underground galleries during gallery advancement
IPC: E21D11/10
Filed: 1975-06-09
Abstract: 1518522 Tunnels; shuttering EISENHUTTE PRINZ RUDOLPH ZWEIGNIEDERLASSUNG DER SALZGITTER MASCHINEN AG 9 June 1975 [7 June 1974] 24577/75 Headings E1F and E1S Apparatus for advancing and lining a tunnel gallery includes a first frame 2 which acts as a tunnelling shield and a second frame 20 which acts as shuttering for the lining. the two frames 2, 20 being movable relative to each other. As described the frame 2 consists of longitudinal girders 16 carried by arches 3 mounted on base members 5. Each arch 3 consists of segments 8, 9, 10 which can be moved outwardly by ram 13 to brace the girders 16 against the walls of the gallery. The frame 20 consists of arches 23 (similar to arches 3) mounted on base members 6 and carrying shuttering 21 and forwardly extending girders 28 which extend between the girders 16 of the frame 2. Each frame 2, 20 can be advanced in turn by rams 7 connected between the base members 5, 6 the frame 2 being advanced in steps and the frame 20 being advanced gradually during backfilling. Backfilling material, e.g. concrete, is fed into the space between the gallery walls and shuttering 21 from a pump 30 through pipes 31, 32, the front end of the space being closed off by an inflatable cushion 34. A facing 25, e.g. of wire gauze or foil, is fed from reels 26 over rollers 29 to the surface of the shuttering 21. The lining is formed continuously as the frame 20 is gradually advanced. Arches 24 are inserted under the lining behind the frame 20.
Patent GB-242247-A (GB)
Title: Improvements in and relating to locking means for the spring drums of clockwork mechanisms, more particularly for toys
IPC: A63H29/04
Filed: 1925-10-02
Abstract: 242,247. Lehmann Patentwerk, E. P. Nov. 3, 1924, [Convention date]. Mechanical toys. - In clockwork mechanism, particularly for toys, the ratchet 6 of the spring drum is held by a pawl 5 formed upon a disc 4 between the ratchet and the casing wall 1, a projection 7 on the disc passing through the wall so that this disc may move laterally but not rotate.
Patent GB-1016476-A (GB)
Title: Plastics bag
IPC: B65D30/08
Filed: 1963-06-20
Abstract: 1,016,476. Vented plastics bags. SICEDISON S.p.A. June 20, 1963 [June 20, 1962], No. 24660/63. Heading B8K. Air can escape from a flat plastics bag 1 through a gap 6 communicating with the interior of the bag through a narrow channel 7 defined by a transverse weld 3 adjacent the bottom edge 5 of the bag. A sleeve 2 projecting from within the bag keeps the inner surfaces of the top edge clean to facilitate their welding after the projecting end of the sleeve 2 has been pushed inside the bag. The sleeve 2 may be welded near the open top end of the bag or, as illustrated, may be included in the weld 3 defining the venting channel 7. A gap 4 in this weld communicates with the interior of the bag.
Patent GB-741866-A (GB)
Title: Apparatus for the production of concrete elements
IPC: B28B23/06
Filed: 1952-10-02
Abstract: 741,866. Moulds for concrete. KIRCHNER, I. A. Oct. 2, 1952 [March 19, 1952], No. 24682/52. Class 87 (2). Apparatus for the production of elongated concrete elements comprises rows of mould-forming partitions 5 secured to a lower working platform the upper horizontal surfaces 33 of the partitions forming a further working plantform from which concrete is poured into the mould spaces between the partitions. Brackets 7 and gaps 4 between the beams 1, 2 forming the lower platform serve to position the partitions 5. The lower platform is completed by means of planks 3. The partitions 5 have collapsible handles 16 and wedge-shaped projections 15 which leave recesses 24, Fig. 4, in the moulded elements. The projections 15 may be shaped to produce recesses 29, Fig. 4, of modified form in which case it is necessary to make the partitions 5 collapsible to enable them .to be withdrawn. The collapsible partition shown at the left-hand side of Fig. 1 has a detachable top portion 33 and double side portions 30 which are held apart by removable distance pieces 32. The moulds are longitudinally subdivided by boxes 8 which are provided with slots 22 to accommodate the longitudinal reinforcement 17. Hinged bars 9 having recessforming projections 12 on their underside extend transversely across the top of the assembly and maintain the spacing of the partitions 5. The moulds are closed by means of strips 13 which also carry recess-forming projections 14.