baber/WOPTO huggingface dataset:
Patent GB-1221422-A (GB)
Title: Door closer devices
Inventor: RANKIN JOHN
IPC: E05F3/10
Filed: 1967-03-09
Abstract: 1,221,422. Door closer device. TONKS (BIRMINGHAM) Ltd. 13 Feb., 1968 [9 March, 1967], .No. 11156/67. Heading E2M. A door. closer device has 2 cams 15, 16 carried on a spindle 10 which is connected to a door to be closed. The cam 16 acts, at the limit positions of the permitted rotation of the spindle 10 (which correspond to the fully open positions of the door) against a resilient stop means 23 which is secured in the casing 11 of the device by means of screws 24, and extends around the internal surface of the casing 11 at 'the end at which the spindle 10 is mounted. A hydraulic damper (not shown), for retarding the movement of the spindle during closing movement of the door, is connected to a cam follower 20, and acts upon the spindle through the cam 16, and roller 21. Compression springs (not shown) mounted in the casing 11 act on the cam 15 through the cam follower 17 and rollers 18 and 19, causing the spindle to rotate towards a position in which the door is closed.
Patent GB-149061-A (GB)
Title: Improvements in connection with perambulators or baby carriages
IPC: B62B9/18
Filed: 1919-05-05
Abstract: 149,061. Burrell, F. M., and Cox, A. R. May 5, 1919. Rest-bars.-Means for moving the safety legs. from their normal position to a position under the body of a baby carriage comprise a revolublespring-controlled shaft B, to which the legs A are fixed, a pulley-wheel F secured to the shaft, and a wire fastened at one end to the periphery of the pulley, and at the other end to a control lever f<2>. Instead of the spiral spring b<1>, the legs may be restored by gravity on release of the lever f<2>. A stop e<1> is provided for the legs to rest against, when in use.
Patent GB-1448777-A (GB)
Title: Magnetic device for producing domains
IPC: G11C11/14
Filed: 1974-03-13
Abstract: 1448777 Magnetic storage arrangements PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 13 March 1974 [13 March 1973] 11172/74 Heading H3B Bubble domains are generated in a magnetic layer having a preferred direction of magnetization normal to the layer by applying a unidirectional magnetic field H of short duration in the plane of the layer, a bubble domain being obtained in the presence of a bubblemaintaining bias field H 0  normal to the layer at an end of each T bar of a T and I bar permalloy overlay pattern on a surface of the layer. The magnetic layer may consist of Y 2À6 Gd 0À3 Pb 0À1  Fe 3À8 Ga 1À2 O 12  or Y 2À68 Gd 0À32 Fe 4À08 Ga 0À92 O 12 .
Patent GB-610622-A (GB)
Title: Improvements in and relating to solid boundary surfaces for fluid streams
IPC: B64C21/06
Filed: 1946-04-11
Abstract: 610,622. Reducing surface friction; boundary layer control. PRESTON, J. H., and THWAITES, B. April 11, 1946, No. 11197. [Class 4] Separation of the boundary layer of a fluid stream moving over a solid surface is prevented by forming the surface of porous material, the linear size and spacing of whose pores are small compared with the thickness of the fluid boundary layer, means being provided for applying suction to the fluid through the pores of the material. The pore size and spacing are of the order of one-hundredth of the boundary layer thickness and do not exceed onefiftieth thereof. The invention may be applied to aerofoils, propeller blades, blading for fans, compressors or turbines, aircraft bodies, engine nacelles, submarine hulls, or ducts or channels in which fluid flow is confined, such as diffusers for compressors and pumps, or the walls of wind tunnels. Suitable surface materials are sintered metal sheet or fine metal gauze bent to the desired shape, or a mould of the desired form may be sprayed to produce a porous metal layer. Fig. 1 shows a thick-section symmetrical aerofoil in which the upper and lower surfaces 5 of the rearward quarter-chord are of finely porous material, a space 6 being formed below the porous covering by an internal partition 7, the space being connected to a suction pump P by ducts D. In the embodiment according to Fig. 3, the porous surface layer 12 extends between the points 10 and 11 at the leading edge of a thin symmetrical aerofoil. In order to preserve laminar flow, the porous areas of the surfaces of the aerofoils may be more extensive than illustrated, and an aerofoil may even be provided with a porous surface throughout. Fig. 5 shows a symmetrical rectangular-section channel or duct in which the portions S of the walls W over which the velocity gradient is steeply negative are of porous material, to which suction is applied. Variation of the applied suction head may be obtained by partitioning the space below the porous area and applying different heads to the several compartments, or the degree of porosity of the surface material may be varied appropriately. Specification 479,598 is referred to, and the Provisional Specification refers to Specification 578,763.
Patent GB-1366560-A (GB)
Title: Assemblages of members having differnt co efficients of thermal expansion and to methods of forming such assemblages
IPC: F01D5/02
Filed: 1972-03-10
Abstract: 1366560 Securing discs on shafts GENERAL ELECTRIC CO 10 March 1972 [7 May 1971] 11217/72 Heading F2U Bodies subject to high or low extremes of temperature, such as a turbine disc 13 and shaft 15, the former having the higher coefficient of thermal expansion, are connected by bolted flanges having axially overlapping lips 20, 22, the contacting faces 27 of which are maintained in tight seated contact by forcing or shrinkfitting into the disc lip 20 before assembly a plug 30 of lower coefficient of thermal expansion (e.g. equal to that of the shaft) than the disc, the plug fit being such as to deform the disc lip 20 radially outwards, the expanded outer dimension of the lip being removed by subsequent machining or being allowed for in the casting. The lip is thus pre-stressed and on subsequent assembly on the shaft, with an interference fit at the contacting faces 27, and heating, the thermal expansion of the lip face 27 of the disc is determined by the thermal expansion of the disc and plug together and by the relaxation of the pre-stress, which can be arranged to be equal to the thermal expansion of the lip face 27 of the shaft, so that in the heated running condition the pre-stress is relieved or cancelled and there is no thermal stress.
Patent GB-1254260-A (GB)
Title: Glass compositions
Inventor: HAGEDORN ERWIN CARL
IPC: C03C4/00
Filed: 1969-02-24
Abstract: 1,254,260. Opalizable glass compositions. OWENS-ILLINOIS Inc. 24 Feb., 1969, No. 11231/71. Divided out of 1,253,729. Heading C1M. A thermally opalizable glass composition comprises (in weight per cent): SiO 2  55-76 ; Al 2 O 3  1À5-12 ; B 2 O 3  0-14 ; CaO 4À7-20 ; MgO 0-15 ; Na 2 O 1-11 ; K 2 O 0-5 ; Li 2 O 0-2 ; where (CaO+MgO) is 8-30 ; (Na 2 O+ K 2 O) is 1-11 ; (SiO 2  + Al 2 O 3  + B 2 O 3  + CaO + MgO + Na 2 O + K 2 O) > 95. The glasses formed may be subjected to an in situ phase separation to effect the opalization. This may be effected by heating the article at 600-980‹ C. for 15 minutes to 64 hours, but with certain of the above compositions the opalization may occur during the formation of the glass article. 0-2% of colorant oxides of Co, Cr, Cu, Ni or Mn may be present. The glass may be used in tumblers, rods or plates. The glass may become completely opaque. The invention claimed in Specification 1,253,729 is disclaimed.
Patent GB-829926-A (GB)
Title: Spectacle frames
IPC: G02C5/14
Filed: 1957-04-08
Abstract: 829,926. Spectacle frames. WHEWAY, F. O. June 9, 1958 [April 8, 1957], No. 11340/57. Class 97(1) A channel shaped decorative piece 9 is attached to a spectacle side arm 5 by engaging one end thereof in a retaining piece 8 secured to the side arm and passing a headed pin 10 on the decorative piece through a hole in the side arm where it is held in position by a pivoted catch 7.
Patent GB-195537-A (GB)
Title: System for the automatic ventilation of water-closets
IPC: F04D25/08
Filed: 1922-04-24
Abstract: 195,537. Gorian, G. April 24, 1922. Ventilation systems and apparatus.-A watercloset apartment is supplied with fresh air by a fan arranged in the window opening and intermittently driven by a turbine carried on the same shaft and operated by the water supply to the cistern, means being provided for preventing leakage of water through the bearings of the shaft. As shown in Figs. 1 and 2, the movement of the float valve 16 in the cistern 8 operates a piston 13 which, when the cord 17 is pulled, moves downwardly and allows communication between the water-supply pipe 5 and the pipe 6 which terminates in a nozzle 4, Fig. 3, delivering on to the turbine bucket-wheel 3 arranged cn the same shaft 23 as the fan 1. The wheel 3 carries a cylindrical sleeve 20 which rotates round two fixed inner sleeves 21, 21<1>, the ends 22, 22<1>, of which are provided with holes for the passage of the shaft 23, this arrangement preventing leakage of the waste water which is thrown off into the turbine casing 2 and conducted through the pipe 7 to the cistern 8. Reference has been directed by the Comptroller to Specifications 20727/97 and 28727/10.
Patent GB-455585-A (GB)
Title: Improved means for varying the compression ratio in internal combustion engines of the swash-plate or equivalent type
IPC: F02B75/02
Filed: 1935-08-27
Abstract: 455,585. Driving-gear. MICHELL, A. G. M., 4, Bank Place, Melbourne, Australia. Aug. 27, 1935, No. 11496 /36. Convention date, Oct. 29, 1934. Divided out of 452,240. [Class 7 (ii)] In a compression-ignition engine, deficient compression at starting &c. is corrected by the action of springs 23 which urge the shaft 1 and swashplate 2 to the left, Fig. 1, and the pistons 3 towards the cylinder head. The springs are enclosed in an oiltight-chamber, bearing against the end of a recess in the cylinder head 22 and a sleeve 17 which itself abuts against a collar 15 on the shaft 1, pads or rollers 16 being interposed. Oil is supplied to the chamber 20 from the lubricating-oil pump 25, its pressure being controlled by a needlevalve 27 in a byepass 26. Specification 279,548, [Class 7 (ii)], is referred to.
Patent GB-1215271-A (GB)
Title: Colloidal asbestos grease
Inventor: MORWAY ARNOLD JESSE
Filed: 1969-03-04
Abstract: 1,215,271. Greases. ESSO RESEARCH & ENG. CO. 4 March, 1969 [1 April, 1968], No. 11514/69. Heading C5F. Greases comprise a lubricating oil, 1-25 wt. per cent of chrysotile asbestos having a fibre length of 2000-30,000 mÁ and a diameter of 1-80 mÁ and 3-20 wt. per cent of polyethylene having a number average molecular weight of 10,000-50,000. The lubricating oils listed are naphthenic based mineral oils, esters of monobasic acids, diesters of dibasic acids, esters of glycols, complex esters, esters of phosphoric acid, halocarbon oils, alkyl silicates, sulphite esters, carbonates, mercaptals, formals and condensates of propylene oxide with butyl alcohol. 0À1 to 10 wt. per cent of phenyl 2- naphthylamine, sorbitan mono-oleate, and sodium nitrite can be included in the greases.
Patent GB-118139-A (GB)
Title: Improvements relating to Magnetic Compasses and Electric Lamps for use therewith.
Inventor: MASON RICHARD SYDNEY
IPC: F21V33/00
Filed: 1917-08-10
Abstract: 118,139. Mason, R. S., and Martin, A. E. Aug. 10, 1917. Compasses, magnetic.-In a combined magnetic compass and electric pocket lamp in which the compass has transparent covering surfaces and is illuminated from below, the compass 4 is mounted within the casing 8 of the lamp in such a manner that it may be moved over the source of light 9 as desired. The compass may be mounted on a wire frame 12 moving in guides fixed on the cap 11 and projecting through a slot 14. The frame 12 may carry a V-shaped contact which comes into or out of engagement with the contact 16 as it is moved so that the light is switched on or off. The transparent surfaces 5, 6 of the compass may be coloured or replaced by frosted glass or the like.
Patent GB-1175382-A (GB)
Title: Improvements in or relating to Concrete Roofing Tiles.
Inventor: BRAAS RUDOLF HEINRICH
IPC: E04D1/04
Filed: 1967-03-13
Abstract: 1,175,382. Roof tiles. BRAAS & CO. G.m.b.H. and REDLAND TILES Ltd. 13 March, 1967 [25 May, 1966], No. 11562/67. Addition to 1,151,722. Heading E1B. In the concrete roofing tile of the parent Specification disc-shaped protuberances 13, 14 adjacent protrusions 15, 16 on the hanging nibs 1 space the tile from its batten to avoid the collection of moisture, the disc faces being inclined at about 4‹ to the plane of the tile.
Patent GB-115641-A (GB)
IPC: F23K3/00
Abstract: 115,641. Motala Verkstads Nya Aktiebolag. Dec. 24, 1913, [Convention date]. Fuel, feeding.-In air-current pulverulent-fuel feeders, the outlet of an air-pipe which supplies air at the lower part of a hopper and the inlet of a pipe which conducts the mixed fuel and air to the furnace are adjustable relatively by hand or automatically. Fig. 4 shows a cylindrical structure 20 forming part of the fuel hopper on the tender of a locomotive; air is supplied by a pipe 4, which normally is set at a distance from the inlet of the pipe 1, so that the compressed air blows the powdered fuel into the tube 1 which conducts it to the furnace. The perforated nozzle 5 may be adjusted to the position shown in order to clean the tube 1. The Specification as published under the International Convention comprises also the following subject matter. Fig. 5 shows a modification wherein air is drawn through a valve 77 and tube 71 in the hopper, and through an annulus formed by a cone 72; fuel and air pass through an adjustable tube 73 and a fixed tube 74 to the furnace; additional air enter. ing at the opening 79 and an opening below fitted with a damper. The tube 73 and the damper are adjusted simultaneously. In another modification, the air nozzle consists of a tube 58 with an outlet formed by " disks " 59, Fig. 9; in the device shown, the tube 58 is attached to a movable bottom 61 connected to a flexible annular diaphragm 63, and is moved automatically by the pressure of the air in the supply pipe 50. It may also be adjusted by the arm 65. In the modification shown in Fig. 10, the fuel-and-air pipe 2 is adjusted relatively to the air supply nozzle 5; this nozzle is perforated all round like that shown in Fig. 4; a similar apparatus has a nozzle perforated only on one side. In the apparatus shown in Fig. 13, air is supplied by perforations 5 in a rotatable pipe 4; as this pipe is rotated, the air supply through the slot 10 in it is cut off, and dust falls out through the apertures 11. In a modification shown in Fig. 19, compressed air is supplied to a box 30 enclosing the air pipe 25, and passes also through pipes 33 into the hopper in order to keep the powder fluid. In another modification, the air pipe is inside the fuel-andair pipe, and is adjustable axially so that its perforated lower end may be wholly or partly inside or outside the chamfered lower end of the fuel-and-air pipe. The valve in the compressedair pipe may be connected to the air-supply nozzle such as that ahown in Figs. 4 and 9, so that the air supply valve and the nozzle are moved simultaneously.
Patent GB-250770-A (GB)
Title: Improvements in or relating to the manufacture of photographic films, papers and thelike
IPC: G03C1/36
Filed: 1925-05-05
Abstract: 250,770. Kodak, Ltd., Bent, W. G., and Crowther, R. E. May 5, 1925. Films and papers.-A design is applied to the surface either of the support, or of the sensitive emulsion, of a photographic paper, film, &c. in a medium which will reduce the sensitiveness of the emulsion or prevent the subsequent development of any latent image therein. The method may, for example, he employed to print a system of squares upon material to be used in the reproduction of maps or drawings, in order that dimensions may be read off therefrom even though the prints become distorted by development &c. The medium may be an organic acid such as citric acid, or a desensitizing dye such as phenosafranine, or a mixture of these in an aqueous solution thickened as with gum arabic or starch; or it may take the form of an oil-bearing ink, colour, or paste containing, for example, the base of the dye-stuff chrysoidine.
Patent GB-1346111-A (GB)
Title: Liquid metal heat exchanger
IPC: F28F9/013
Filed: 1971-04-27
Abstract: 1346111 Tubular heat exchangers FOSTER WHEELER CORP 27 April 1971 [25 May 1970] 11685/71 Heading F4S A shell and tube heat exchanger 10 having a lower shell section 12 and an upper section 22 includes a removable core 35 supported on a flange 34 at the upper end of shell 12 by means of a clamping ring 36. The core comprises an annular assembly 66 of tubes extending between upper and lower annular tube sheets 38, 46. Flow baffles 68 guide a first heat exchange fluid, e.g. liquid sodium, entering at 18 along a tortuous path over the tubes before the first fluid finally leaves through an outlet 16 in the bottom of the shell 12. A plurality of inner and outer spaced tie rods 72 and 74 interconnect the flow baffles to provide a more rigid support structure for the tubes. A second heat exchange fluid, e.g. liquid sodium, supplied through inlet 26 enters the tubes by way of a central tube 44 and header chamber 52 and leaves through outlet 24. The top of the upper section 22 is closed off by a removable inverted hemispherical member 28. A removable funnel-shaped construction defined by members 58, 61 leads the second fluid into the central tube 44.
Patent GB-142479-A (GB)
Title: Improvements in horseshoes
IPC: A01L3/04
Filed: 1920-04-27
Abstract: 142,479. Knowles, J. T., (Representative of Capewell, G. J.). April 28, 1919, [Convention date]. Segmental shoes; fixing; renewable treads.-A removable horseshoe is made with two metal plates 11, 12, each of shape similar to half a shoe of ordinary form, and provided with overlapping projections 13, 14, 15, 16. These projections are slotted to allow of slight adjustment when the shoe is first fitted, and are held in position after adjustment by toothed washers 19 of harder material than the plates driven into engagement by rivets 18. A cushion 39 of any suitable material is held in a groove in each member 11, 12. Shoe plates 21, 22 of comparatively thin metal are secured to the members 11, 12, and are provided with a number of short sharp spurs 23 projecting upwardly and penetrating the bottom of the hoof to prevent the shoe from sliding on the hoof. Supporting-clips 26 are pivoted on the opposite edges of the shoe plates 21, 22, and have pivoted fastening-plates 27 and loops 28 for the reception of a strap to secure them round the hoof. The clips are provided with spur plates 31 of spring metal formed with a slot to provide resilient branches. The plates are formed vertically and horizontally with a curve shorter than that of the hoof, to give a greater grip by the teeth 32, and to permit of yielding action between the hoof and holder-supports. Holding- clips projecting upwardly from the sides of the shoe to engage the sides of the hoof and a toeclip may be provided.
Patent GB-610864-A (GB)
Title: Improvements in or relating to a method of manufacturing filaments from tungsten
IPC: H01K3/02
Filed: 1946-04-17
Abstract: In a method of manufacturing single or multiple-coil recrystallized filaments from tungsten wire having an average crystal size of at least one turn of a single coil or, in the case of multiple-coil filaments, of a primary coil, the filament, prior to recrystallization is subjected, without a mandrel and either within or outside of an incandescent lamp, to a temperature between 1500 and 2000 DEG C. for at least 5 minutes to produce a far-advanced lattice recovery.  The filament, the wire of which may contain 0.05 to 0.1 per cent of iron, may be heated to 1850 DEG C. for from 5 to 120 minutes.  A formula is given correlating lattice recovery, time and temperature, and the heating should be such that recrystallization just does not occur.  Recrystallization is produced later by heating in a tungsten furnace to 2400 DEG C. or the filament may be mounted in a lamp and burned.  It is stated that filaments heated in this manner have a high resistance to vibration.
Patent GB-731015-A (GB)
Title: Improvements in or relating to machines for cutting shapes from sheet materials
Inventor: COLLINSON FREDERICK BAKER
IPC: A43D29/00
Filed: 1953-04-29
Abstract: 731,015. Endless belt conveyers. COLLINSON'S PATENTS, Ltd. April 29, 1964 [April 29, 1953], No. 11780/53. Class 78 (1). [Also in Group VIII] In a machine for cutting shapes from sheet material (see Group VIII), the cut shapes are caused, by means of a rotary flipper 22, to move up a ramp 21 and on to a conveyer belt 19. The conveyer belt is driven from the main driving motor of the machine through a free-wheel mechanism 20 on the shaft of the flipper 22, the mechanism being operative to transmit a drive to the conveyer belt only during the cutting- stroke. Specification 702,324 is referred to.
Patent GB-166740-A (GB)
Title: Improvements in or relating to valve mechanism for internal combustion engines
IPC: F01L1/12
Filed: 1920-04-28
Abstract: 166,740. Maina, J. April 28, 1920. Valve-gear.-The poppet valve p is actuated by a rocker j, pivoted at k and carrying an adjusting- screw m, which is acted upon by a tappet e carrying a roller f for engagement with the cam g.
Patent GB-1017534-A (GB)
Title: Improvements in or relating to the production of 7-aminocephalosporanic acid
Inventor: EARDLEY STEPHEN
IPC: C07D501/18
Filed: 1962-03-28
Abstract: 7-Amino-cephalosporanic acid is produced by subjecting Cephalosporin C or a salt thereof to the action of a nitrosating agent, decomposing the resultant intermediate with a lower alkanol such as methanol, ethanol or propanol, and precipitating the 7-amino-cephalosporanic acid from the resultant solution by adding a base. The preferred nitrosating agent is nitrosyl chloride and when this substance is employed the reaction medium is preferably a mixture of formic acid and an inert diluent, and the intermediate may be decomposed with water.