baber/WOPTO huggingface dataset:
Patent GB-560119-A (GB)
Title: Improvements relating to rotary boring heads
IPC: B23B29/034
Filed: 1942-09-16
Abstract: 560,119. Rotary boring-heads. BOOTH, C. M., and BROWN & BROS. Ltd., G. Sept. 16, 1942, No. 13087. [Class 83 (iii)] Rotary boring-heads of the type in which the tool-holder in the form of a slide is traversable transversely of the head during the rotation thereof have the motion transmitted by means such as racks and pinions. The head has a shank 1, body 3 and head 2 which are either integral or rigidly connected. A sleeve 6 surrounds the body 3 leaving an annular space 5 for the operating mechanism. The tool-slide 14 moves in transverse diametral ways and carries on its rear face rack teeth meshing with a long pinion 17 mounted in a bore in the head 2 and journalled in screwed plugs 19, 20 that close the bore. Bores 23, 24 parallel to the axis house rack rods 21, 22 carried by a sleeve 25 traversed through ball thrust bearings by a flanged sleeve 28 screwed into the sleeve 5 and connected by pins 29 to rotate with a cap 6 closing the end of the sleeve 4, which is mounted in ball bearings 8, 9, 10 and on a roller bearing 13. The cap is clamped to the sleeve at 38, and the flange of the cap and the sleeve 4 may have co-operating graduations to assist in making an adjustment, which may be done whilst the head is in action by grasping the sleeve 4 to bring it to rest and then releasing the clamp 38 and turning the cap 6. In a modification the rack rods 21, 22 are replaced by quick pitch screws engaging corresponding bores in pinions engaging racks connected directly to the tool-slide.
Patent GB-419297-A (GB)
Title: Improvements in devices for supporting flowering and other plants
IPC: A47G7/04
Filed: 1933-05-05
Abstract: 419,297. Treatment of growing plants. FURLEY, R. G., Clapton Nurseries, Clapton, near Clevedon, Somerset. May 5, 1933, No. 13148. [Class 6 (ii).] In a device for supporting plants of the kind comprising two metal helical coils adapted to encircle an upright or stake, the coils being in association with a wire-ring encircling the plant, the two coils c are positioned one above and one below the plane of the ring b in spaced relation and are interconnected by substantially vertical arms c<1> which also connect the ring b to the coils c. The device may be formed of a single piece of wire which is twisted at d to form the ring. In a modification, the ring wire is interrupted at e and one end is formed with a hook f adapted to engage one of the loops g in the ring. More than one ring may be carried on the same stake. According to the Provisional Specification, the plant ring may be divided and one of the extensions be provided with a hook to engage eyes or loops in the other extension.
Patent GB-486255-A (GB)
Title: An improved process for the production of aluminium oxide from bauxite and like aluminium-containing substances
IPC: C01F7/0633
Filed: 1937-05-08
Abstract: The treatment of bauxite and other aluminium-containing substances with a caustic alkali solution is effected in the presence of a neutral alkali metal salt, preferably a halide such as sodium chloride or bromide.  Thereby a proportion of less than 1,8 mols Na2O per mol of the Al2O3 may be maintained in the liquor, and about 1,1 mol Na2O per mol of Al2O3 may be used.  Complex compounds of the nature of sodium-chlorohydroxo-aluminate, which are more stable in caustic alkali solution than sodium aluminate, are stated to be formed.  The concentrated liquor obtained is diluted, separated from the residue, and aluminium hydroxide precipitated by stirring.  After concentration, the residual solution may be used for a further extraction.  The process is applicable to products obtained by heating bauxite or other aluminium-containing substances with sodium carbonate or sodium sulphate.
Patent GB-195883-A (GB)
Title: Improvements in feed water heaters
IPC: F22D1/42
Filed: 1922-05-10
Abstract: 195,883. Marks, E. C. R., (Worthington Pump & Machinery Corporation). May 10, 1922. Feed-water, supplying.-A feed-heater of the type described in Specifications 13444/03 and 135,232, in which excess water is compensated for under the control of a float, has a float chamber, separate from and at the side of the storage tank, which receives only a part of the heated water. Steam enters an oil separating chamber A and passes to the chamber B in which water is sprayed from a nozzle 16. The water collects in a chamber C from which it is drawn by the lower side of the pump J and delivered through the filter G to the boiler. Cold feed is drawn from the chamber H by the upper side of the pump and delivered to the chamber D, whence it passes by the passages 18, 17, to the nozzle 16. The float chamber E is connected to the cold storage tank C by a passage 35. The bucket float 37 is maintained full of water by a stream from a port 41 in the passage 18 and is partly supported by a spring 42. A rise in the level of the water in the chambers C, E causes the float to rise and allow the passage of excess water to the suction side of the pump by the passage 36. The steam cylinder K is controlled by enclosed valve gear in which a steam thrown valve distributes steam to the cylinder ends under the control of an auxiliary valve 1 moved by a rod 2 engaging alternately with the top and bottom of a passage 3 in the piston rod 24. The exhaust steam is delivered to the heater B. The pump is provided with a split cylinder head 32, and the lower head 33 of the steam cylinder has an opening normally closed by stuffing-box 34 of sufficient size to allow of the withdrawal of the piston 23 upward through it when necessary. In a modified construction, no oil separators or filtering chambers are provided, and the float is replaced bv a tilting balanced bucket which rises on accumulation of excess water and, through a rod, opens a valve which permits a portion of the cold water drawn in by the pump to return to the cold storage tank.
Patent GB-132734-A (GB)
IPC: B62B9/12
Abstract: 132,734. Dove, W. S. April 4, 1919. Springs, arrangement of.-Relates to the spring suspension of perambulator bodies mounted upon arcuate tubular frames. Brackets 5 on the body 6 are arranged to slide vertically against upper and lower compression springs 3, 4 on posts attached to spring holders 2 mounted upon each limb of the arcuate frame 1, the arrangement being such that the force of the springs acts substantially tangentially to the frame instead of radially. The frame is strengthened by forming the upper parts 7 thereof solid.
Patent GB-132749-A (GB)
IPC: B41J13/24
Abstract: 132,749. Elphinstone, W. H. May 5, Envelope and sheet feeding-arrangements. - Envelopes, labels, wrappers, and the like 1, to be addressed in a typewriter, are arranged in a holder or belt consisting of tapes or strips 2 of material such as paper or fabric, which are formed with loops for receiving the sides of the envelope or the like.
Patent GB-353949-A (GB)
Title: Improvements in and relating to the heat treatment of linseed oil
Filed: 1930-04-30
Abstract: Linseed oil is thickened and improved in drying power by heating to about 280 DEG  C. and then blowing in air, preferably preheated, while the temperature is raised to about 310 DEG  C. Products of the viscosity of stand oil are obtained in 2 hours; solids by longer treatment.
Patent GB-1430062-A (GB)
Title: Flowmeters
IPC: G01F1/32
Filed: 1972-03-22
Abstract: 1430062 Measuring fluid-flow KENT INSTRUMENTS Ltd 22 March 1973 [22 March 1972] 13384/72 Heading G1N In a flowmeter of the type wherein a body, disposed in a conduit for the fluid-flow, causes vortices to be produced whose frequency f is proportional to the fluid-flow, i.e. f = α V where α is a constant, the widths of the body and the conduit, which are factors of the constant α, are chosen to make α at or near its minimum value. As described for a cylindrical body of diameter d in a circular conduit of diameter D, the value of <SP>d</SP>/D is 0À36. For a flat plate of width d, <SP>d1</SP>/D is 0À26. Bodies of rectangular and square cross-section and rectangular pipes are contemplated. Vortex production may be by heat loss sensors giving an electrical output, and may be performed by the method described in Specification 1401272 Piezo-electric or variable capacitor detection, or fluid detection is also contemplated.
Patent GB-1470475-A (GB)
Title: Liquid crystal display
IPC: G02F1/1347
Filed: 1975-04-02
Abstract: 1470475 Controlling light MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 2 April 1975 [4 April 1974 17 May 1974] 13509/75 Heading G2F [Also in Division C5] A display system comprises an electro-optic "twist" nematic liquid crystal cell between a linear polarizer and an electro-optic guest-host alignment liquid crystal cell in which the guest material is a, red, pleochroic dye. Both liquid crystal layers have positive dielectric anisotropy so that in the presence of an electric field they are optionally inactive and colourless. In the absence of a field the twist cell rotates the plane of polarization of incident light by 90 degrees and the guest-host cell acts as a coloured linear polarizer. The polarizing direction of the guest-host cell and the nematic alignment of the twist cell at the side nearest the polarizer should each be either parallel or perpendicular to the polarizing direction of the polarizer. A second polarizer parallel or crossed with respect to the first, may follow the guest-host cell. By selective control of the cells, the system appears colourless, dark or coloured to light on the optical path. By shaping the electrodes in one or both cells, composite figures may be formed and parts thereof altered in appearance by selectively addressing the cells. An alpha-numeric display for a calculator may have a background which changes colour when an error signal from the calculator is fed to the guest-host cell.
Patent GB-1470763-A (GB)
Title: Overdrive arrangement for a torque converter
IPC: F16H37/04
Filed: 1973-03-21
Abstract: 1470763 Change-speed gearing SRM HYDROMEKANIK AB 8 March 1974 [21 March 1973 14 May 1973] 13598/73 and 22840/73 Heading F2D Planetary gearing comprising a sun wheel 20 carried by a cup-shaped coupling member 22, planetary wheels 18 on a carrier 14 drivingly connected to a shaft 10, and a ring gear 24 drivingly connected to a shaft 12, has biasing means, e.g. a Belleville spring 42<SP>1</SP>, acting between the coupling member 22 and the assembly of the ring gear with its shaft 12 to engage a clutch comprising conical surfaces 28, 30 to lock up the gearing to provide direct drive. A non- rotating piston 48 is actuable hydraulically to displace an abutment 22a and the member 22 to release the clutch and engage a conical surface 34 with a fixed conical surface 36 to hold the sun 20 so that an overdrive ratio is established between the shafts 10, 12. The shaft 12 is mounted in a bearing 54 and carries a tapered bearing 44 on the outer race of which the inner part of the Belleville spring reacts. The rubbing surfaces of the piston 48 and abutment 22a are lubricated by oil delivered through a passage 52b. As shown, the shaft 10 constitutes the input shaft and is driven from a transmission including a hydrodynamic torque converter T and a reverse gear. In a modification, a roller type freewheel is interposed between the carrier 14 and the ring gear. It is stated that the functions of the shafts may be interchanged to provide underdrive instead of overdrive, and that the planetary gearing may have intermeshed planets to act as a reversing gear.
Patent GB-148275-A (GB)
Title: Improvements in or relating to grinding concave spherical surfaces
IPC: B24B11/00
Filed: 1920-05-18
Abstract: 148,275. Nordiska Kullager Aktiebolaget. July 18, 1919, [Convention date]. Disk apparatus; round holes, enlarging and trueing.-Spherical concave surfaces are ground by means of a rotating grinding-disk mounted on. a shaft the axis of which intersects that of the rotating work at the centre of the spherical surface. The work, shown as a ring 19, is mounted on a rotating shaft 9 carried by a table 5 slidable on a guide 8, and the grinding-disk 28 is mounted on a rotating shaft 16 carried by a table 24 slidable on a guide 23 positioned at an oblique angle to the guide 8. The maximum possible diameter of the grinding-wheel corresponds to the position shown by the dotted line a<1>, whereby the face or the grinding-wheel is tangential to a sphere having the same centre as the spherical surface under formation and a diameter equal to the axial depth of the ring. As the disk wears, it is fed axially by the hand-wheel 25: when its diameter is reduced to that shown at the position a<4> it can no longer be used, its replacement by a larger wheel being necessary.
Patent GB-136841-A (GB)
IPC: C11D13/02
Abstract: 136,841. Welter, A. March 23, 1918, [Convention date]. Sodium carbonate.-Finely-divided anhydrous sodium carbonate is hydrated without caking by spraying with water or with a solution of a salt such as sodium sulphate or silicate, or of soap when a mixture is desired. The sodium carbonate may be allowed to fall through a tower into which a fine water spray or steam is admitted, cold air being admitted from below; or snow may be used instead of water. Alternatively, the soda may be blown by a jet of compressed air and water spray into a chamber; or a thin layer of soda may be spread on along conveyer belt which passes near small resisting-members that keep the soda moving, and the soda is then sprayed with a thin solution of water-glass, a bleaching-composition being thus obtained ; or the soda is kept in motion in a suitable mixing-vessel and sprayed with soap solution, care being taken to avoid such rise of temperature as would result in liquefaction or caking. Other materials may be incorporated during the treatment.
Patent GB-378431-A (GB)
Title: Improvements in or relating to the fabrication of bolts and the like
IPC: B21K1/58
Filed: 1931-05-09
Abstract: 378,431. Lubricating bolts. CHARBONNIER, R., 38, Boulevard Pont Noyelles, Amiens, Somme, France. May 9, 1931, No. 13812. Convention date. June 19, 1930. [Class 12 (ii).] The Specification as open to inspection under Sect. 91 (3) (a) describes a greasing bolt 11, Fig. 13 (Cancelled), with head 12 drilled and threaded to receive a greasing device and fitted with a threaded plug 14 for securing it by means of a nut to the member to be greased, and a second greasing bolt 15, Fig. 14 (Cancelled), having a head 16 with orifice closed by a spring-pressed ball 17, the stem being closed by a screw plug 21 and threaded at 22 for fixing. This subject-matter does not appear in the Specification as accepted.
Patent GB-1425102-A (GB)
Title: Methods of etching gallium arsenide substrates and epitaxially  depositing gallium arsenide thereon
IPC: H01L21/308
Filed: 1973-03-22
Abstract: 1425102 Semiconductor devices WESTERN ELECTRIC CO Inc 22 March 1973 [22 March 1972 and 1 May 1972] 13840/73 Heading H1K A gallium arsenide substrate is subjected to an etching flow of arsenic trichloride in helium carrier, and gallium arsenide is epitaxially grown thereon by subjecting the etched substrate to a flow of arsenic trichloride in hydrogen carrier at elevated temperature in the presence of gallium in a reaction chamber. Conduits 13, 14, 14A admit and remove hydrogen and helium derived from sources 15, 16 to and from a bubbler 11 including a heated arsenic trichloride reservoir 12. A dopant is admissible through inlet 18 and nitrogen through inlet 19. Heated reaction chamber 23 contains gallium source 24 and gallium arsenide substrate, and receives a hydrogen carrier flow containing the trichloride for deposition of gallium arsenide. Initially, helium is substituted for hydrogen to etch the substrate surface, and thereafter hydrogen is restored so that deposition is resumed. The helium carrier may be admixed with hydrogen, and a dopant may be introduced into the flow. Specification 1,425,101 is referred to.
Patent GB-1161892-A (GB)
Title: Hose Clamping Devices.
Inventor: COPONY EDWARD L
IPC: F16L3/01
Filed: 1966-07-27
Abstract: 1,161,892. Clamp fastenings. DRESSER INDUSTRIES, Inc. 27 July, 1967 [27 July, 1965], No. 13983/69. Divided out of 1,167,891. Heading E2B.  A hose clamping device for a dispensing hose of a liquid dispenser includes hose clamping means, a collar 24 mounted around said hose clamping means, said collar being made of a pair of identical housing members 22, 23 said members each having an internal peripheral groove for receiving said hose clamping means, means at one end portion of each member for connecting said members together comprising projections 34 and opposed recesses 36, opposed, recesses in, the opposite end portions of the members forming a cavity 28 for receiving a retriever cable 16, and a passageway 41 for the cable leading to said cavity, the entrance to said passageway being free of sharp edges to minimize wear of the cable. As shown near the other end each member has a pin 38 and a hole 40 each pin mating with the hole 40 of the other member, the two members being held together by a snap ring 54 disposed in an external groove 56. The cable 16 is anchored in the cavity 28 by inserting the free end portion 32 of the cable through a washer 30 and then knotting it. An inner member 18 of the hose clamping means has its inner surface serrated to provide for positive gripping of the hose and it is provided with pairs of outwardly extending bearing tabs 46 which define a track, a band clamp 20 being disposed around the inner member between the bearing tabs. A spacer sleeve 26 is positioned over the outermost edges of the bearing tabs 46, the sleeve having a slit 48 that can be opened to permit easy insertion over the hose; the member 18, the band clamp 20 and the sleeve 26 are all contained in the groove in the collar 46 and the sleeve 26 can be omitted if the hose 12 is of such diameter that the tabs 46 ride in the groove of collar 24 with a minimum clearance. An alternative form of spacer sleeve 25 is also described in which the sleeve before assembly is flat *and has a T shaped cross section; the sleeve is used either with the leg of the T between the tabs 46 for a large diameter hose or for a smaller diameter hose with the legs of the T facing outwardly.
Patent GB-946990-A (GB)
Title: Welding equipment
IPC: B23K9/127
Filed: 1961-04-19
Abstract: 946,990. Welding by fusion. F. HIRSCHMANN. April 13, 1962 [April 19, 1961], No. 14108/61. Addition to 901,203. Heading B3R. [Also in Division G3] The configuration of a seam to be welded is recorded by moving a stylus of a pantograph along the seam so that a pen produces a picture of the seam on a sheet of paper. The picture is scanned by a photo-electric tracing head which moves a welding torch through a servomotor. The stylus is guided by hand or by a roller sliding on the tapered edges of the seam. Vertical movement of the torch is controlled by a further pantograph or by a system as disclosed in Specification 805,496 which maintains the arc length constant. The drawing of the traces can be by two dark lines on a bright background and can be recorded as a comprehensive trace or as a separate trace for each of the two co-ordinates. The record can also be an engraved groove on a stencil plate or on a magnetic tape. The recording can be combined with recordings of other signals, e.g. welding current.
Patent GB-1214278-A (GB)
Title: Drier
Inventor: WISE WALTER G
IPC: F26B13/22
Filed: 1969-03-18
Abstract: 1,214,278. Drying printed webs. W. G. WISE. 18 March, 1969 [6 June, 1968], No. 14127/69. Heading F4G. Drying apparatus of the type described in Specification 1,175,460 is modified in that the burner 16 and air nozzle 17 are both directed along the direction of movement of the material. In the preferred embodiment the burner 16 and nozzle 17 are situated in a housing 11 at the entrance to a tunnel 13, whose walls 60, 61, 59 diverge from entrance to exit, the burner 16 being at a more acute angle to the direction of movement of the material 40 than the nozzle 17, and situated between the nozzle 17 and the material 40 which may be paper, aluminium or plastics having deposited thereon printing ink, lacquer, enamel, paint or varnish. The material 40 enters the housing 11 through entrance 41 and is dried as it passes along the tunnel 13 with the hot gases. A spark ignitor (55) and flame rod (50) may be used to diminish the fire risk. At the far end of the tunnel 13, the drying gases are forced away from the material 40 by an air knife 45 directing air downwards through holes (46) along axis 50. The gases are exhausted through exhaust stack 52. The air knife 45 is supplied from a blower (32). which also supplies the nozzle 17 and the gas-air mixer (22) which supplies a combustible mixture to the burner 16. In further embodiments there may be nozzle-burner pairs in series along the path of the material (Figs. 6-8, not shown) or on both sides of the material (Fig. 9, not shown).
Patent GB-1135766-A (GB)
Title: Improvements in or relating to steam turbines
Inventor: FRANKEL ADOLF
IPC: F01D9/06
Filed: 1965-04-02
Abstract: 1,135,766. Steam turbines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 28, 1966 [April 2, 1965 (3)], Nos. 14190/65, 14194/65 and 14195/65. Heading F1T. A steam turbine cylinder comprises a number of successive expansion stages through which the driving steam flows, an outer casing protected internally from contact with hot steam from the driving steam flow up to an intermediate stage, and means situated after that stage for collecting steam from the driving steam flow and circulating the collected steam to the inside of the outer casing for cooling the casing, this means being arranged to collect the steam in such manner as to convert at least part of the velocity head of the collected driving steam into a pressure head as a result of impact, which pressure head prevents undesired leakage of hot steam to the casing via a leakage path from the driving steam flow at or close to the intermediate stage. The casing 5, Fig.2A, of an H.P. steam turbine cylinder is formed as a one-piece casting or forging having an integral inlet branch 47 with a wall 47A sufficiently thick to withstand the reduced working pressure obtaining immediately downstream of the second stage. Steam at the full inlet pressure and temperature passes through a much thinner inner wall 47B of the branch 47 to an annular nozzle box 34. The inner wall 47B is clamped at its outer end to the outer wall 47A and a sleeve 93 is secured to its inner end. To allow for thermal expansion, the outer end of the sleeve 93 slidably engages the inner wall 47B, and the inner ends of the inner wall and sleeve slidably engage packing rings 95, 97 carried by the nozzle box 34. Steam at the reduced pressure and temperature obtaining immediately downstream of the second-stage rotor blading 57 is collected in a slot 125 in each of a series of spokes 123, the impact converting some of the velocity head into pressure head to increase the pressure of the collected steam. The collected steam passes via radial passages 127 to anannular chamber 129 and thence around the nozzle box 34 to the annular space 99 between the outer wall 47A and the sleeve 93, whence it flows through holes 101 at about the mid-length of the sleeve into the annular space 103 between the sleeve and the inner wall 47B. From the inner end of the space 103, the steam flows via an annular chamber 105 and ducts (107, 109), Fig. 2B (not shown), to a point of lower pressure. The flow of steam through the annular spaces 99, 103 cools the outer wall 47A so that its inner end is held at about the temperature of the casing 5. The transition between this temperature and the inlet temperature to which the outer end of the outer wall 47A is subjected occurs over a cylindrical part of the outer wall of uniform cross-section so that no undue thermal stress occurs.