baber/WOPTO huggingface dataset:
Patent GB-1515827-A (GB)
Title: Transparent beta-quartz glass-ceramics
IPC: C03C4/10
Filed: 1977-03-18
Abstract: 1515827 Glass ceramics CORNING GLASS WORKS 18 March 1977 [25 May 1976] 11553/77 Heading C1M A transparent glass-ceramic article wherein beta-quartz solid solution constitutes the predominant crystal which article exhibits a coefficient of thermal expansion over the range of from room temperature to 600C of less than 10 Î 10<SP>-7</SP>/C and an infra-red transmittance at a wave-length of 2À5 microns through a polished plate of 3 mm thickness in excess of 75% comprises, by weight on the oxide basis, 2À5-3À5% Li 2 O,1À5-2À5% MgO, 1-2% ZnO, 17À75-20% Al 2 O 3 , 67-70% SiO 2 , 2-4À5% TiO 2  and 1-2% ZrO 2 , the balance, if any, consisting of one or more compatible constituents. The article may additionally contain BaO and conventional glass colouring agents such as Co 3 O 4 , NiO, Cr 2 O 3 , Fe 2 O 3 , MnO 2 , N 2 O 5  and Cu 2 O as well as As 2 O 3 . It has particular use in culinary applications and is suitably produced by exposing the glass to a temperature of 750-850C to cause the development of nuclei therein prior to exposing to a temperature of 850-950C.
Patent GB-181557-A (GB)
Title: An improved construction of lead for arc lamps
IPC: H05B31/18
Filed: 1921-04-21
Abstract: 181,557. Argill, W. H. April 21, 1921. Arc lamps. - Electric connection to a movable carbon holder in a kinematograph or like lamp is made by means of two copper &c. bars 1, 2, Fig. 1, pivoted by means of copper rivets to a double-forked link 3 and to forked pieces 6 carrying pins 9 for insertion in the binding posts 10. The whole conductor, except the pins, may be covered by a loose flexible sheath of asbestos or other insulating- material. The forked link 3 may be replaced by a pair of flat links on opposite sides of the bars. An additional connection between the bars 1, 2. may be made by a short piece of flexible conductor secured by binding-screws on the bars. To suit various arrangements of terminals, the terminal pins 9 may be in line with, offset from, orbent at right angles to the forked pieces 6; or a universal joint may be provided by means of a twisted link 14, Fig. 5, pivoted to the forked' terminal piece 6 and to an additional forked link 16.
Patent GB-959404-A (GB)
Title: Improvements in or relating to cast iron
Inventor: NEU MAX GERHARD
IPC: C21C1/10
Filed: 1961-03-29
Abstract: Spheroidal graphite iron is treated with a mixture of two or more of calcium fluoride, sodium aluminium fluoride, sodium carbonate, sodium silicate, powdered glass and sodium borate to reduce the incidence of casting defects caused by dross. A quantity of mixture amounting to 0.05-5% by weight of the iron is generally satisfactory, and the iron may be poured on to the mixture which has previously been placed in a ladle.  Particular compositions exemplified are: .calcium fluoride.10% .cryolite.90% and .calcium fluoride.43% .powdered glass.30% .sodium carbonate.27%
Patent GB-166190-A (GB)
Title: Improvements in power transmitting mechanism
IPC: F16H21/32
Filed: 1918-07-15
Abstract: 166,190. Dirjugik, N. July 15, 1918. No patent granted (Sealing fee not paid). Hand driving-mechanism; fly-wheels, applications of. - Power-transmitting mechanism for more efficiently utilising hand power in operating a pump rod 10 or other oscillating lever comprises a fly-wheel 3 linked to the lever 7 and driven by a handle 2 or otherwise. The leverage may be multiplied by connecting the point 8 with the free end of a second lever or with the handle 2 of a second fly-wheel, link 5, and lever 7. Reference has been directed by the Comptroller to Specifications 4752/86, [Class 80, Mechanism, &c.], 5284/00, and 11997/11, [both in Class 102 (i), Pumps, &c.].
Patent GB-1425034-A (GB)
Title: Diffuser casting
IPC: B28B7/34
Filed: 1972-03-13
Abstract: 1425034 Refractory diffuser element MORGAN REFRACTORIES Ltd 7 March 1973 [13 March 1972] 11590/72 Heading B5A [Also in Division F4] A cast refractory diffuser, for feeding gas, e.g. nitrogen into molten aluminium or other fluid material at high temperature, e.g. during purification thereof, comprising a tubular inlet stem integral with a hollow, gas-permeable outlet head extending laterally from the stem is made using, at least for the outlet head, a compressible fugitive casting core which maintains its shape during casting of the refractory from an aqueous mix but yields to shrinkage of the cast during drying and commencement of firing and is destroyed before completion of firing. The refractory may be silicon carbide bonded with carbon, alumina or clay, but is preferably a zirconia-mullite bonded silicon carbide. It may be cast in apparatus, Fig. 3, comprising plaster mould parts 7, 8 each having a cavity 9, 10 which together define the cavity for the diffuser to be produced and base 11, through which passes a withdrawable metal core 12, 15 to form the bore of the inlet stem. At its top, core 12 has a dowel 13 to locate in a socket 14 in a compressible, combustible core 15 forming the interior of the diffuser head. Core 15 is located by pins 16 withdrawable through holes 17. Core 15 is preferably a cellular plastics material, e.g. rigid polyurethane which leaves only a small residue on firing.
Patent GB-920342-A (GB)
Title: Improvements in or relating to magnetic memory arrangements
IPC: G11C17/02
Filed: 1960-04-02
Abstract: 920,342. Permanent data stores. TELEFONAKTIEBOLAGET L. M. ERICSSON. April 1, 1960 [April 10, 1959], No. 11627/60. Class 106 (1). A permanent store is formed by embedding a matrix of input and output conductors, P1, P2 and S1 S2, insulated from each other in the surface of a plate 1 of material of high permeability, e.g. ferrite, separated from a plate 3 of similar composition by a sheet 2 of conductive material, e.g. copper foil, formed with holes at the intersections of output and input conductors between which a connection is desired. When a pulse is applied to an input conductor magnetic flux about the conductor is prevented due to the presence of the sheet 2 except at the holes where the flux generates potentials in the output conductors crossing the input conductors at these points. In Fig. 1 the holes are dumbbell shaped and are directed along a bisector of the angle between input and output conductors. By selection of the bisector the polarity of the output can be determined and it is possible to store data in the ternary code, or to distinguish more clearly between binary digits. In alternative embodiments the output conductors may be arranged on the underside of plate 3, or a conductor may comprise a loop, one limb on each side of a ferrite plate, the input conductors on plate 1, the output conductors on plate 3. Several layers of ferrite plates and conductive sheets may comprise a large capacity store (Fig. 5, not shown). Also described is an embodiment suitable when input is derived from the closing of transistor switches (Fig. 2, not shown) in which the single input conductors P of Fig. 1 are replaced by conductive loops and the holes are of such shape that the flux about each limb of the loop produces potential of like polarity in the output conductor. The plates 1, 3 may be of insulating material with ferrite or like material embedded only at the intersections of the conductors.
Patent GB-588250-A (GB)
Title: Improvements in or relating to apparatus for fixing rings on grooved pins and the like
IPC: F16B13/00
Filed: 1944-06-20
Abstract: 588,250. Making dowel pins. NAPIER & SON, Ltd., D., and BACK, J. A. June 20, 1944, No. 11699. [Classes 83 (ii) and 83 (iv)] Shrinking hoops; drawing ; drawing and forging dies.-A dowel pin A has a ring C compressed into a groove therein. The pin is placed in a die D, bolted on a holder E, and is supported by a pin G<1> carried by an ejector operated by a spring H. The ring C is placed in position on the pin A. correct location being determined by a pin O<1> in the punch M, having an attached hardened member K with a flange K<2> corresponding to the flared mouth of the die D. The ring C is forced by the flange K<2> into the annular space D<3> in the die, thus contracting the ring into the groove B. The pin O<1> at the same time depresses the pin A, maintaining the correct relative position of ring and pin, and compressing the ejector spring H. The sides of the groove B may be undercut. The dowel pin forms the subject-matter of Specification 588,288, [Group XXV].
Patent GB-161843-A (GB)
Title: Broomhead and handle connector
IPC: B25G3/12
Filed: 1920-04-28
Abstract: 161,843. Fenner, H. E., and Parker, F. C. April 28, 1920. Fixing by detachable socket pieces, with clamping and lug attachments. -A device for fixing a broom handle in the socket of the stock comprises a sleeve A having flanges A<1> for clamping it on the handle by means of a small bolt and nut B, and three lugs C with holes for fixing to the stock.
Patent GB-643424-A (GB)
Title: Improvements relating to the spring suspension for the wheels of perambulators and the like
IPC: B62B9/18
Filed: 1948-04-29
Abstract: 643,424. Spring suspensions. TAN SAD, Ltd., and SHOTT, P. April 29, 1948, No. 11720. [Class 108(ii)] A spring suspension for perambulators and the like comprises upper and lower curved or cranked members a, d, pivotally connected together at complementary extremities and connected together at opposite extremities by a helical compression spring e, the upper member being secured to the chassis c of the perambulator or the like by a bracket b and the lower member attached to the axle f, the pivot being disposed in a horizontal plane which passes midway through the compression spring e. In the arrangement shown the members a, d are connected through a knuckle joint h and the wheel axle f is secured in the angle between the underside of the member d and' a protuberance d<SP>1</SP> thereon. According to the Provisional Specification, the joint h may be a multiple knuckle joint.
Patent GB-1131197-A (GB)
Title: Improvements in or relating to furnace grates
IPC: F23H7/06
Filed: 1967-03-14
Abstract: 1,131,197. Furnace grates. HANIEL & LUEG G.m.b.H. 14 March, 1967 [16 March, 1966], No. 11792/67. Heading F4B. A grate, particularly for burning refuse, and comprising a series of grate sections 1 pivoting about transverse axes 3, has side labyrinth seals formed by the co-operation of discs 6 carried by the grate sections and concentric with the axes of the grate sections with recesses 7 in the combustion chamber wall. A cover may be provided to form a labyrinth seal independent of the chamber wall. The grate sections may be driven through the discs or their journals.
Patent GB-761396-A (GB)
Title: New and improved ammonium nitrate blasting explosive compositions
Inventor: DAVIDSON SAMUEL HENRY
IPC: C06B45/00
Filed: 1954-04-26
Abstract: 761,396. Ammonium nitrate explosives. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 24, 1955 [April 26, 1954], No. 11944/54. Class 9 (2). An explosive composition, free from selfexplosive organic ingredients, comprises ammonium nitrate of particle size such that substantially all, i.e. at least 98 per cent., passes a 120 B.S.S. sieve, aluminium particles of which at least a portion consist of paint-fine aluminium, vegetable tissue material, and at least one flame-quenching ingredient, the composition having a bulk density 0.85-1.1 g/c.c., and being substantially oxygen balanced, i.e. there is a surplus or deficiency of not more than 5 g. O 2  per 100 g. composition. The ammonium nitrate should be such that not less than 60 per cent. passes 240 B.S.S., and not less than 80 per cent. passes 170 B.S.S. 1-2.5 per cent. aluminium may be used and 0.5-1 per cent. may be paint-fine. Vegetable tissue may be wood flour, balsa meal, ground cork, or bagasse. The flame quenching ingredient may be sodium chloride, or sulphate, or china clay, and for sodium chloride the amount may be 8-25 per cent. The composition may also include orthonitrotoluol and should have a power less than 74 per cent. of that of blasting gelatin.
Patent GB-309927-A (GB)
Title: Improvements in ball or spherical valves
IPC: F16K31/06
Filed: 1928-12-05
Abstract: 309,927. Halsey, E. S. Dec. 5, 1928. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 8, 1928]. Divided on 301,875. Electrically - actuated valves; fluid - actuated valves.-An electrically-actuated ball valve comprises a casing having a smooth upwardlyextending runway formed by a vertical bore 2 in a brass chamber 9, a valve seat spaced away from the wall of the runway, a magnetic ball valve 3, and pole pieces 10', 11<1> of an electromagnet M extending into and forming part of the wall of the runway above the ball 3 so that when the magnet is energized it first moves the ball 3 sideways off its seat and against the runway wall up which it then moves under magnetic action. The pole piece 10<1> is in magnetic connection with an iron plate 10 extending vertically outside the brass chamber 9, the top of the plate 10 being in magnetic connection with the forked upper end 13<1> of the flat magnet core 13 the lower end 12 of which is in magnetic connection with pole piece 11'. The ball valve 3 when opened supplies alcohol from the runway or cold chamber to a hot. chamber forming part of a diaphragm operating means for a valve, as shown.
Patent GB-407552-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B13/20
Filed: 1933-04-25
Abstract: 407,552. Photographic twin lens and stereoscopic cameras. FRANKE, P., 32c, Wolfenb³ttlerstrasse, and HEIDECKE, R. 7, Seesenerstrasse, both in Brunswick, Germany. April 25, 1933, No. 12067. Convention date, April 25, 1932. [Classes 98 (i) and 98 (ii).] A camera of the kind having a viewfinding chamber 3 arranged above the exposure chamber 2 and producing on a ground-glass screen 6 an image of the same size as the photograph is fitted in the finding chamber with a dihedral mirror or prism 7 of the kind known in connection with ordinary finder attachments, in order to produce on the ground-glass screen 6 a laterally-true and upright finder-image ; and the partition between the two chambers is shaped to conform substantially to the cone of rays in the exposure chamber 2 so that the lower end of the mirror or prism 7 can be accommodated without raising the finder lens 5. The two reflecting surfaces of the mirror or prism are arranged preferably at right angles to each other. The Specification as open to inspection under Sect. 91 describes also a stereoscopic camera with a view-finding chamber, employing such a mirror or prism, arranged between the two exposure chambers each of which is shaped to conform substantially to the exposure ray-cone. This subject-matter does not appear in the Specification as accepted.
Patent GB-527867-A (GB)
Title: Improvements relating to rotary pumps
IPC: F04C2/36
Filed: 1939-04-21
Abstract: 527,867. Rotary pumps. SCHIMKAT, G. April 21, 1939, No. 12100. Convention date, July 5, 1938. Drawings to Specification. [Class 110 (ii)] In a rotary pump where the lateral leakage from the pressure-chamber varies as the arcuate length of the chamber changes during the course of a revolution, a corresponding lateral leakage is arranged for from the delivery into the suction chamber. By this means the total leakage, though increased, is kept at a constant value and irregularity of flow due to variable leakage is avoided.
Patent GB-905714-A (GB)
Title: Improvements in or relating to clearers for yarns
Inventor: ROSCOE SAMUEL
IPC: B65H63/06
Filed: 1959-04-10
Abstract: 905,714. Yarn clearers. HAYESHAW Ltd. July 8, 1960 [April 10, 1959], No. 12120/59. Class 120 (2). A yarn clearer comprises a plate having blades 44, 45 forming between them a narrow, tapering, slub-engaging slot 27 of fixed aperture and slub-catching and yarn breaking means 31 overlying part of said slot towards the narrower end thereof. As shown, the clearer is mounted on a base 21 slotted to receive a bracket 22 engaging the underside of the base and fixed thereto by a nut and screw 43. The blades 44, 45 are secured to rivets 47 to the plate 46 which is drilled and tapped in line with the aperture 48 in the blades so as to receive a locking screw 25 by which the blade assembly is adjustably fixed to upper flange 23 of the bracket 22 ; plate 53 with a slub catching comb 31 is also mounted on the flange 23 by screws 54 engaging elongated holes 55 in the comb plate so that the position of the comb may be changed if e.g. a comb tooth is broken. The clearer is mounted so that the yarn passes between the blades making an acute angle, e.g. 10-40 degrees with the open end of the blades which can be adjusted by having provided elongated holes 56 for mounting the base 21. Before assembly the blades are ground on either side of the recesses 49, 50 to give the slot the required width and degree of taper which is preferably uniform. Markings 29 on the upper blade indicate the width of the slot and adjustment of the slot to catch slubs of different sizes is effected by slackening the locking screw 25 and moving the blades until the yarn passes through the slot at a point where the slot width is of the required magnitude. The yarn engaging edges of the blades are preferably chromium plated or heat treated to minimize wear. In another form the slot is cut from a single plate.
Patent GB-862001-A (GB)
Title: Helicopter controls
IPC: B64C27/32
Filed: 1959-04-10
Abstract: 862,001. Revolving seats. UNITED AIRCRAFT CORPORATION. April 10, 1959 [May 13, 1958], No. 12170/59. Class 52(2). [Also in Group XXXIII] In a special-purpose helicopter wherein the pilot has to view forwardly and rearwardly, the seat 40 is pivotally mounted at 66 in a yoke fitting 64 which has a depending hollow spindle 68 rotatably mounted in a housing 74 secured to the cabin floor 76. Radial loads are carried by plain bearings 80, 84 and thrust loads by a ball race 78. Control mechanism 158 (see Group XXXIII) passes coaxially through spindle 68.
Patent GB-754868-A (GB)
Title: Improvements in or relating to control valves for fluid actuated systems
IPC: F16K1/36
Filed: 1954-04-27
Abstract: 754,868. Fluid-pressure servomotor-control systems; valves. BENDIX AVIATION CORPORATION. April 27, 1954 [July 24, 1953], No. 12177/54. Class 135. A hydraulic control valve for use in an automobile power steering mechanism, comprises flexible disc valve members 98, 100, Fig. 3, spaced apart on an operating shaft 70 between seats 132, 140 and seats 134, 142, respectively. The valve discs control motor ports 26, 28 leading to opposite sides of a double-acting servomotor, an exhaust port 18, Fig. 2, connected to a space between the seats 140, 142, and a supply port 12 conected to spaces between the seats 132, 134 and sealing bushes 110, 112. The valve discs are arranged so that in their neutral position they are closer to the seats 132, 134 than the seats 140, 142, so that, e.g. when the disc 100 is seated against the seat 142, the disc 98 is deflected and held more firmly against the seat 132 in opposition to the inlet pressure. On movement of the driver's steering column a ball-ended arm 90 mounted between spherical seats 82, 84 housed in a tubular socket 76 secured to the shaft 70 by a socket 72 and pin 74 moves the shaft 70 to actuate the discs so that one side of the motor is open to pressure supply and the other side to exhaust. The motor cylinder is connected to a cross-shaft to which the road wheels are operatively connected and moves to operate the road wheels, the valve casing 66 connected to the crossshaft through a sleeve 88 then moves to follow up the movement of the discs 98, 100. The seats 140, 142, are made smaller in diameter than the seats 132, 134, so that when the driver removes his steering effort an annular area on one or other of the valves is subjected to inlet pressure and the discs are returned to their neutral positions.
Patent GB-640607-A (GB)
Title: Improvements in or relating to a pneumatic tire
IPC: B60C9/06
Filed: 1948-05-04
Abstract: 640,607. Pneumatic tyres. GOODRICH CO., B. F. May 4, 1948, No. 12224. Convention date, June 18, 1947. [Class 144 (ii)] In a pneumatic tyre having plies 10 ... 15 formed of cords extending from bead-to-bead, and one or more breaker-strips 18, 19, the cords of the latter are of greater stretchability than those used for the main plies. The main plies may be formed of rayon and the breakerstrip cords of nylon ; or, cotton or wire of low stretchability may be used for the main plies and high-twist rayon or other relativelystretchable material for the breaker-strip cords.
Patent GB-118452-A (GB)
Title: Improvements in or relating to Internal-combustion Engines.
IPC: F02F1/22
Filed: 1917-08-28
Abstract: 118.452. Villiers Engineering Co., Funck, G., and Farrer, F. H. Aug. 28, 1917. Two - stroke - cycle engines.-The induetion passage D leading to the crank chamber is formed in the wall of the cylinder, its inlet C being remote from the crank-shaft in order that a fiy-wheel m a y be mounted beneath the carburettor.
Patent GB-275733-A (GB)
Title: Improvements in or relating to the manufacture or construction of loud speakers or sound amplifiers
IPC: G10K11/02
Filed: 1926-05-14
Abstract: 275,733. U-Phone Go., Ltd., and Burrill, R. May 14, 1926. Sound magnifying and directing appliances. - A horn is formed of two straight portions k, l meeting at an angle of 45‹ with a smooth curve of deflection around the angle, this curve being struck from a circle having a diameter equal to four times the diameter of the inlet ef. In the example shown, the lengths ab, bc are each eight inches, the diameter of the curve at the angle is three inches, and the diameter of the inlet ef and the outlet gh are respectively three-quarters of an inch and six inches. The centre d of the circle is obtained by setting off a distance equal to one inch from the point b along the line bc. The point h is determined by making ah equal to ab, and the lines hj, fi are drawn tangential to the curve. The sound passage k is a cone having the line ba as axis and the line fi as generating line. The intersection of this cone with the curve gives the point m and the passage l is formed as a cone containing the lines hj, mg. The horn may be cut out in sections from solid wood or may be moulded.
Patent GB-120941-A (GB)
Title: A New or Improved Device for the Removal of Refuse of All Kinds.
Inventor: OCHSNER JACOB
IPC: B65F3/12
Filed: 1917-08-29
Abstract: 120,941. Ochsner, J. Aug. 29, 1917. Scavengers' carts.-To prevent the escape of dust in emptying one refuse receptacle into another or into a furnace, the hinged lid of the receptacle to be emptied becomes coupled to the sliding lid of the collecting receptacle when the one receptacle is hung on to the other so that, upon turning the receptacle to be emptied over on to the collecting receptacle, the lids are automatically opened. Fig. 1 shows the receptacle 1 of a dust cart with a slide 9 running in guides 7 on the hinged cover 3. The dustbin 12 is adapted to be hung on to a bar 10 on the cart and a forked member 14 projecting from the hinged lid 12' of the bin then embraces a projection 11 on the slide 9. Upon turning the bin over on to the receptacle 1 about the bar 10, the lid 12' of the bin pushes back the slide 9 and is itself opened. The lid 12<1> may have a fastening means comprising a ball 42, Fig. 4, on the lid adapted to engage a. reinforcing wire 40 on the rim of the bin. This fastening is disengaged when the bin is hung on the receptacle 1 by the arm 14 striking the slide 9 and a tooth or tappet mav be provided on the back of the projection 11 so as to be engaged by the arm 14 and effect the engagement of the fastening upon returning the bin after emptying. The cart receptacle 1 is provided with a journal 21 and the hinged lid 3 thereof with an arm 22 to enable this receptacle to be emptied into the hopper of a refuse combination furnace in a similar manner to that described for the dustbin