baber/WOPTO huggingface dataset:
Patent GB-429422-A (GB)
Title: Improvements in and connected with apparatus for screening water and other fluids
IPC: E03F5/14
Filed: 1934-04-17
Abstract: 429,422. Filters. PEEBLES, J., Waterworks Cottage, Dalrymple, and GLENFIELD & KENNEDY, Ltd., Kilmarnock, both in Ayrshire. April 17, 1934, No. 23631/33. [Class 46] A rotary drum strainer of the outward-flow type and provided with a stationary tray to collect solid matter separated by and falling from the inner surface of the drum is closed at one end by a stationary disc, which supports the tray and has an outlet through which the matter is discharged from the tray. The solid matter is flushed from the drum by jets which oscillate so as to sweep over the full length of the drum. The drum 1 is mounted in a chamber 5 on a shaft 2 journalled at one end in a partition 3 and at the other in a disc 4 supported on a pedestal 4<1>. The water to be strained enters through a surge compartment 7 and passes over a wall 6 and through an aperture 10 in the wall 3 into the drum. Solids retained by the strainer are carried to the top and there flushed .away by water sprayed from an oscillating pipe 14, so that they fall into a tray 11 and are discharged through an aperture in the disc 4 and a conduit 12. The periphery of the disc 4 is engaged by roller bearings 36, Fig. 4, carried by an annular plate 37 fixed to the drum. The drum is rotated from a turbine 24 by gearing which comprises a shaft 16 with a worm 22 gearing with a toothed ring 23 on the end of the drum. The pipe 14 is oscillated from an eccentric 17 on the shaft 16 and is supplied with water through a branch 31 from the inlet to the turbine. A brush or comb may be provided outside the drum in the neighbourhood of the jets to assist the cleansing action of the jets. Extra power for rotating the drum may be obtained from a wind-driven wheel.
Patent GB-462023-A (GB)
Title: Improvements in or relating to speed warning devices for use with speedometers
IPC: G01P1/11
Filed: 1935-08-23
Abstract: 462,023. Speedometers. WYATT, T. Aug. 23, 1935, No. 23631. [Class 106 (iii)] A contact device operated by the spindle of a speedometer needle to close a warning lamp circuit when a certain speed is reached comprises a spring clip 5 pressed on to the needle socket and carrying a projection 8 adapted to press together flexible contact strips 6, 7.
Patent GB-745467-A (GB)
Title: Method of manufacturing wheel discs
Inventor: CHATTERTON PERCY BARNES
IPC: B21D53/26
Filed: 1953-08-27
Abstract: 745,467. Making wheel discs. DUNLOP RUBBER CO., Ltd. Aug. 9, 1954 [Aug. 27, 1953], No. 23648/53. Class 83 (2). A method of manufacturing a wheel disc comprises forming e.g. by stamping or rolling, a circular hoop of material of even gauge thickness and predetermined width into dished formation by increasing the diameter of one edge and decreasing the diameter of the opposite edge whereby the thickness of the material forming said hoop is reduced adjacent the increased diameter edge and increased adjacent the decreased diameter edge to form a tapering crosssection. The hoop 2 is subjected to a series of hot pressing operations as shown in Figs. 3, 4 and 5 and the face 5 (Fig. 5) is planished flat, drilled to receive wheel studs and then welded at its outer periphery to the gutter of a threepiece rim of known type (Fig. 6). Alternatively, the opening out and closing in of the opposite edges of the hoop may be performed by separate operations. Specification 434,044 is referred to.
Patent GB-1045298-A (GB)
Title: Polyhalophenols
Inventor: BONDY HERBERT FREDERICK
IPC: C07C37/02
Filed: 1964-06-08
Abstract: In the manufacture of polyhalogen phenols from polyhalogenbenzenes, containing at least three halogen atoms, by alkaline hydrolysis at a raised temperature in the presence of a solvent, there is included in the reaction mixture an additive which restrains sublimation or evaporation of the polyhalogenbenzene, the additive being a halobenzene containing fewer halogen atoms than the polyhalobenzene under treatment. Specified additives are the dihalogenbenzenes, o-dichlorobenzene being preferred. The preferred solvent is diethylene glycol and the preferred hydrolysing agent is sodium hydroxide.  The reaction temperature may be 160-185 DEG  C.  An example describes the manufacture of 2,4,5-trichlorophenol from 1,2,4,5-tetrachlorobenzene.
Patent GB-945505-A (GB)
Title: New steroid compounds and processes for their preparation
IPC: C07J75/00
Filed: 1961-06-30
Abstract: The invention comprises 3#x-amino-20-bis-(hydroxymethylene) -5b - pregnan -11- one having the formula: <FORM:0945505/C2/1> the salts thereof, and a process for the preparation thereof in which 3-oximido -20- bis- (hydroxymethylene) -5b - pregnane is reduced to form 3#x-amino -20- bis -(hydroxymethylene) - 5b -pregnan -11- one. Reduction may be effected by hydrogenation in the presence of platinum oxide. The hydrochloride may be formed with hydrochloric acid. Specification 945,503 is referred to.
Patent GB-386276-A (GB)
Title: Improvements in or relating to the treatment of sugar juices
IPC: C13B20/12
Filed: 1932-08-24
Abstract: A colloidal hydrosol having an alumina base for use in purifying sugar is made by treating a salt of aluminium, such as the chloride or sulphate, with ammonia and passing a current of sulphur dioxide through the colloidal hydrogel mass.ALSO:Sugar juices are purified by the addition of a colloidal hydrosol having an alumina base obtained through the intermediary of a hydrogel and filtering.  The hydrosol may be prepared by treating a salt of aluminium, such as the chloride or sulphate, with ammonia, and passing a current of sulphur dioxide through the colloidal hydrogel mass.  The hydrosol may be used alone or with the addition of colloidal silica and formaldehyde.  Less lime is required during the subsequent treatment.  The deposits filtered during the first filtration provides a fertilizer rich in organic nitrogen and having a basis of alumina.ALSO:The deposit obtained by filtering sugar juices which have been purified by the addition of a colloidal hydrosol having an alumina base provides a fertilizer rich in organic nitrogen.
Patent GB-231391-A (GB)
Title: Improvements relating to collapsible or folding or non-collapsible boxes
IPC: B65D5/44
Filed: 1924-10-08
Abstract: 231,391. Smalldridge, W. J., and Abbott, E. P. Oct. 8, 1924. Corner strengthening - pieces.- Rigid cardboard boxes or collapsable boxes of the kind described in Specification 122,375 are strengthened by the provision in each corner of hollow reinforcing columns 1 of square section which are formed separately from the walls of the box and are stitched each to one side of the box so as to be capable of being flattened out or deformed to angle shape. Specification 24382/07 also is referred to.
Patent GB-277364-A (GB)
Title: Electrical gas filled discharge device
IPC: H01J17/52
Filed: 1927-09-09
Abstract: 277,364. Meyer, F., and Spanner, H. J. Sept. 9, 1926, [Convention date]. Addition to 275,552. Vacuum tubes; low-pressure metallic-vapour apparaus.-A rectifier according to the parent Specification has an incandescent cathode comprising a compound of an alkali or alkaline earth metal with an amphoteric oxide, a filling of a gas other than inert and highly adsorbent bodies such as activated carbon, charged with gas, so as to prevent a decrease in gas pressure due to overloading. A getter may be provided for absorbing gas given off during the process of exhausting. The electron-emitting materials may be nickelites, cobaltites, aluminates, or zirconiates produced by the process described in Specification 272,440. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of materials such as the azides of the alkali or alkaline earth metals capable of evolving a gas such as hydrogen or nitrogen, or metallic vapours. This subjectmatter does not appear in the Specification as accepted.
Patent GB-922823-A (GB)
Title: Improvements in or relating to mounts for solid state semiconductors
Inventor: NIPPERT PAUL WILLIAM
IPC: H01L21/60
Filed: 1961-07-03
Abstract: 922,823. Making electric components; extruding; forging; soldering; welding by pressure. NIPPERT ELECTRIC PRODUCTS CO. July 3, 1961, No. 23878/61. Classes 83 (2) and 83 (4). [Also in Group XXXVI] A mount for a solid state semi-conductor, e.g. a transistor, is made by thermally fusing a metal element to the upper surface of a blank, and pressing the blank in a confining die to form a stem extending from the lower surface of the blank. A molybdenum disc 26, Fig. 1, on which a semi-conductor element is to be secured and a steel or copper welding ring 29 to which a container is to be welded are brazed using a disc 22 and a ring 28 of silver brazing metal in recesses in a blank 20 stamped and formed by a coining die from a sheet of copper or copper alloy. The assembly is formed and work-hardened by pressing between a fixed die 35, Fig. 11, and a moving die 36 provided with an ejector rod 52 in an hydraulic press to form a flange 33, Fig. 2, and a stem 32 and, if required flats 27, Fig. 4. The enclosure is either flash welded or cold pressure welded to the ring 29 depending on whether the ring is of steel or copper. The blank 20 may be of a copper alloy having a high annealing temperature so that a soft copper welding ring 28 can be annealed by heating the formed assembly without the work-hardened blank being softened. In a modification the whole of the upper surface of the blank within the welding ring is raised during forming and the molybdenum disc is either omitted or covers the whole raised portion. In a further modification, a one-piece steel disc 152, Fig. 10, covers the whole upper surface of the blank.
Patent GB-729485-A (GB)
Title: Improvements relating to adjustable windows
Inventor: DUTFIELD ALBERT ERNEST
IPC: E05F1/10
Filed: 1952-09-24
Abstract: 729,485. Window stays. RAWLINGS MANUFACTURING CO., Ltd. Oct. 30, 1953 [Sept. 24, 1952], No. 23950/52. Class 65(1). [Also in Group X] A hinged window 2 is held either in the closed or in the open position by a telescopic link, the outer member 6 of the latter being pivoted to a bracket 9 on the fixed frame 5, and the inner member 8, which is urged outwardly by a spring 7, being pivoted by a pin 15 to a bracket 10 on the outer edge of the window; the open position of the window being determined by the engagement of the pin 15 with an end of a slot 14 formed in a longitudinal extension 13 of the outer member 6. The window 2 constitutes a narrow ventilating pane which surmounts a fixed larger window pane as used at the front end of the upper and lower decks of public vehicles.
Patent GB-754505-A (GB)
Title: Method for producing reels and the like parts provided with terminal cheeks
IPC: B21D53/26
Filed: 1954-08-20
Abstract: 754,505. Making reels, wheels and pulleys. ETABLISSEMENTS G. DECOMBE. Aug. 20, 1954 [Nov. 5, 1953], No. 24306/54. Addition to 652,483. Class 83 (2). [Also in Group XXVIII] The method of the parent Specification for producing the cheeks of reels, pulleys, wheels and the like is modified in that the transverse flat member to which the corrugated member 18 is secured is a sheet 17 of sufficient width and thickness to form, after bending, the drum of the reel &c. either by itself or together with the corresponding member of the other cheek. In one form the width of the sheet 17 is such that the sheets of two cheeks 18 welded along the line a-b, Fig. 6, form the drum 17a. In a modification the sheet is itself wide enough to form the drum and two corrugated members 24a, 24b, adjacent each edge, Fig. 8.
Patent GB-585491-A (GB)
Title: Improvements in or relating to indicating instrument cases
IPC: G01D11/24
Filed: 1944-12-05
Abstract: 585,491. Indicating-apparatus. SMITH & SONS (ENGLAND), Ltd., S., and DORER, P. O. Dec. 5, 1944, No. 24329. [Class 106 (iv)] An instrument case 10 has a cover glass 19 held against a flange 18 by means of U-shaped springs 12 disposed between the back of the cover glass 19 and inwardly extending lugs 11 to which the instrument is attached by studs. A mask 14 cut away to expose the face of .the instrument, may be interposed between the back of the cover glass and the ends 13 of the springs 12 which may be curved. The inner face of the mask is made light-reflecting and light-dispersing, space is allowed between it and the face of the instrument and a light source 23 is so disposed within the case that light rays are reflected from the inner face of the mask on to the face of the instrument. The mask 14 may be formed slightly larger than the case, except at the corners, and the margin may be bent to provide resilient tongues 17 to securely locate the mask in the case. The inner part 20 of the mask may be inset away from the glass. Specification 555,909 is referred to.
Patent GB-1459899-A (GB)
Title: Device for pulling up trees bushes masts or poles
IPC: E02D9/02
Filed: 1974-05-31
Abstract: 1459899 Hauling out trees J KEHREN 31 May 1974 [8 June 1973] 24341/74 Heading B8H Trees are hauled out of the ground by a device comprising a pressure medium cylinder disposed on an upstanding part having a piston-rod connected to a guide member at least partly embracing the tree and to a holding member from which it is spaced, the cylinder having a rigidly mounted holding member to support the tree in a partly pulled-out position. In the Figure, holding member 13 is connected to and spaced from piston-rod 14a by rod 18, while holding member 19 is rigidly mounted on cylinder 14. In operation, chain 12 is fastened round the tree, pressure medium is pumped into cylinder 14, raising rod 14a, guide member 16 and holding member 13, which together with chain 12 grips the tree and hauls it upwards. If the first such operation is not sufficient to remove the tree from the ground, chain 20 on holding member 19 is fastened round the tree to permit loosening of chain 12, lowering of piston 14, and recommencement of the operation.
Patent GB-701718-A (GB)
Title: Method of producing phenols free from neutral oil
IPC: C07C37/00
Filed: 1951-10-19
Abstract: Phenols are separated from materials containing phenols and neutral oils, e.g. oils and tars, by solvent extraction to give a crude product which is distilled to remove asphaltic impurities and the remaining impurities are separated by extraction, in the presence of water, with substances capable of dissolving neutral oils. Preferably the initial material such as a tar oil is extracted with aqueous alcohol, e.g. aqueous methanol suitably in the presence of low boiling aliphatic hydrocarbons such as benzine which remove the neutral oils.  The aqueous alcoholic extract is subjected to a rectifying distillation preferably using a column of over 50 theoretical plates and with an increase reflux ratio, the resulting phenol fraction is saturated with water and treated with a low boiling saturated aliphatic hydrocarbon such as benzine to remove the neutral oils leaving water-saturated phenols, which are separated by distillation.  In the case of a phenol fraction containing a high content of higher boiling phenols, the final extraction step is suitably carried out at a slightly elevated temperature and in the presence of a water dissolving substance such as carbolic acid or methanol to increase the miscibility of the phenols with water.  An example is given.
Patent GB-245460-A (GB)
Abstract: 245,460. Leonori, O. Dec. 31, 1924, [Convention date]. Void [Published under Sect. 91 of the Acts]. Motor spirit; mineral and tar oils, purifying.- A fuel for internal-combustion engines is obtained by treating alcohol with calcium carbide. Hydrocarbons such as petrol, benzine, shale oil, turpentine, benzol, toluol, xylol, amylene, naphtha, and naphthalene may be added before or after the carbide, treatment. The alcohol may be pure, methylated, or commercial. The alcohol or hydrocarbons or both may be first purified by agitation with a small quantity of ammonium hydrate which is not separated. A suitable fuel consists of 60 Ib. of alcohol, 20 lb. of turpentine, 10 lb. of benzol, 15 lb. of petrol, 2 lb. of naphthalene, and the dissolved acetylene.
Patent GB-746861-A (GB)
Title: Improvements in or relating to adjustable valve mechanisms
IPC: G05D23/02
Filed: 1953-09-04
Abstract: 746,861. Valves. MAIN, Ltd., R. & A., WORTLEY, G. W., and ROBINSON, H. N. July 1, 1954 [Sept. 4, 1953], No. 24551/53. Class 135. In a valve mechanism comprising a disc valve 14 which co-operates with an annular seat 11 in the valve casing 10 and is internally threaded to engage a threaded tappet 16, one end of which engages an operating member, such as the rod 19 of a rod and tube type thermallyresponsive device, and the other end of which is connected by a tongue and slot connection to an adjusting member 23 rotatably mounted in and extending through a part of the valve casing, means are provided for limiting the relative movement of the two elements of the tongue and slot connection to an extent not exceeding two thousandths of an inch in a direction transverse to the axis of rotation of the adjusting member whilst still permitting sufficient transverse movement to prevent the tappet binding in its bearing 18 and also allowing relative axial movement of the elements. Such means may comprise a pin 33 axially mounted in one of the elements, as shown the slot 22 in the adjusting member 23, and arranged to extend loosely into a hole 30 in the other element, in this case the tongue 21 on the tappet 16. The clearance between the pin 33 and the hole 30 may be one thousandth of an inch. To prevent damage to the pin it extends only to the top of the slot 22. A flange 24 on the adjusting member 23 is pressed against the inside wall of a closure member 25 for the valve casing by a spring 18 which surrounds the tongue and slot connection and is disposed in a recess in the valve disc. In an alternative arrangement, one of the elements of the tongue and slot connection, the tongue 21 as shown in Fig. 6, has a transverse pin 31 engaging with limited clearance a slot 32 formed in the end of the other element, i.e. the adjustment member 23. The slot 32 is at right angles to the slot 22. Specifications 572,649 and 730,232 are referred to.
Patent GB-786869-A (GB)
Title: Improvements in and relating to curtains
Inventor: WEBER ALEXANDER
IPC: A47H23/05
Filed: 1955-08-26
Abstract: 786,869. Curtains. BEER, H., and HORISBERGER, E. WEBER-. Aug. 26, 1955, No. 24562/55. Class 52(5) A curtain comprises thin, resilient strips each hanging freely, supported at its narrow upper end, and composed of standard pieces detachably connected to each other along the length of the strip. As shown, the strips are made up of standard pieces 50 of thin metal or synthetic resin connected to each other by oblique hooks 53 pressed out near the base of each piece engaging elliptical apertures 51 near the top of the adjacent piece. The pieces 50 are laterally curved, the hooks and apertures being positioned so that engagement or disengagement can take place only when the pieces are flexed. Each piece contacts the same face of adjoining pieces in a light-tight manner. The strip may be supported on a runner displaceable along a rail by holders 56 riveted at 57 and each having a hook 58, similar to the hooks 53, and a pin 60 engaged by a chain manipulated to alter the hanging position of the strip. In a modification the standard pieces are different lengths, the hooks 53 being replaced by heads having restricted necks and the apertures 51 by key-hole slots. The surfaces of the pieces 50 may be ornamented by etching, anodizing, stamping, perforated &c.
Patent GB-443492-A (GB)
Title: Improvements in and relating to balls for tennis and the like games and the manufacture thereof
IPC: A63B39/04
Filed: 1934-08-28
Abstract: 443,492. Balls for games; vulcanizing- moulds. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and MURPHY, E. A., and TROBRIDGE, G. W., Fort Dunlop, Birmingham. Aug. 28, 1934, No. 24733. [Class 132 (ii)] [See also Group V] An inflated rubber ten nis ball has an inflation plug 3 accommodated in a recess in the wall of the ball, so that the plug does not project into the interior of the ball. The recess is produced by forming a protuberance : on the mould 1 in which the ball is formed. The plug is then secured in the recess by a rubber solution which may contain vulcanizing ingre dients.
Patent GB-1429554-A (GB)
Title: Heat exchanger
IPC: F28F1/42
Filed: 1973-05-23
Abstract: 1429554 Corrugating tubes CTC AB 23 May 1973 [23 May 1972] 24740/73 Heading B3E [Also in Division F4] The surface of a heat exchange tube is formed with a plurality of spaced groove-shaped depressions 10 and 11 extending helically both in the right hand sense and the left hand sense, the intersecting grooves 10 and 11 forming a diamond-shaped pattern. The grooves on the external surface produce a corresponding pattern of ridges on the internal surface of the tube. A plurality of such tubes may be helically wound between inner and outer cylinder (15 and 16, Figs. 4 and 5, not shown) the tubes being coupled in parallel with the fluid passing through the tubes flowing generally countercurrently to the fluid passing over the tubes. The grooves are formed in the surface of the tube by drawing a plain tube through two tools journalled to rotate about the axis of the tube, each tool comprising a plurality of rollers 23 arranged circumferentially about the axis, with the plane of the rollers forming an acute angle relative to the tube axis.
Patent GB-164379-A (GB)
Title: An improved device for clearing wind-screens, windows and the like
IPC: B60S1/14
Filed: 1919-10-09
Abstract: 164,379. Hern, M. B. Oct. 9, 1919. Windows and the like, cleaning.-Relates to pivoted squeegees for clearing moisture &c. from wind-screens of motor-vehicles &c., and consists in forming a pivot-pin bearing attached to the screen by soft washers 16, 17 and metal washers 15, 18 held in place by a screwed collared bush 12 and nut 14. The washer 15 is provided with projections which limit the movement of the squeegee to 180‹. The squeegee is formed of a metal tube split longitudinally, wherein is inserted a rubber tube pinched in, or a rubber strip bent back on itself and tapering in width from the outer end. A metal rod 30 inside the tube keeps the rubber in place, and is secured by a cap nut 31 which forms a watertight closure. Reference has been directed by the Comptroller to Specifications 12392/07, 21241/14, and 9498/15.