baber/WOPTO huggingface dataset:
Patent GB-643122-A (GB)
Title: Improvements in method and apparatus for the continuous casting of metal tubes
IPC: B22D11/00
Filed: 1948-05-07
Abstract: 643,122. Continuous casting - machines. ROSSI, I. May 7, 1948, No. 12619. [Class 83 (i)] Apparatus for continuously casting metal tubes T comprises a mould block 1 having a cavity in which a pool 2 of molten metal is maintained and having a passage 6 extending therethrough, a water-cooled-mandrel 8 forming the sole means for withdrawing heat to cause solidification of the molten metal, and the mould block being maintained at a temperature sufficient to prevent appreciable withdrawal of heat from the molten metal, whereby solidification of the molten metal proceeds entirely outwardly from the mandrel towards the wall of the mould passage. The mandrel comprises inner and outer tubes 9, 11 the bore 13 of the tube 9 having apertures 14 through which cooling water is sprayed against the interior of the solidified tube. A spray ring 16 applies cooling water to the outside of the solidified tube. The mandrel is moved downwardly at the same rate as that at which the tube is withdrawn and is moved upwardly at a more rapid rate. The mould block may be provided with passages 15 to receive heating elements. The apparatus may be modified for casting a plurality of tubes.
Patent GB-671785-A (GB)
Title: Improvements in or relating to glass compositions
IPC: C03C14/00
Filed: 1950-05-22
Abstract: 671,785. Glass compositions. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. May 22, 1950 [June 29, 1949], No. 12712-/50. Drawings to Specification. Class 56. [Also in Group XL (a)] A glass is composed of 60-85 per cent by weight B 2 O 3 , 10-20 per cent SiO 2 , 3-10 per cent ZnO, 3-8 per cent of at 'least one alkali metal oxide or halide added in sufficient quantity to make the glass transparent, and 0-5 per cent of at least one of the oxides Al 2 O 3 , MgO, BeO, CaO. A specific example consists of 74 per cent B 2 O 3 , 15 per cent SiO 2 , 5 per cent ZnO, 1 per cent Al 2 O 3  4 per cent Na 2 O, and 1 per cent NaF. The glass can form a self-supporting non-porous thin glass plate and is particularly suitable to act as a matrix in which particles of a phosphor such as ZnS and/or CdS are embedded to form a screen, e.g. in image intensifier tubes, the glass completely covering the phosphor particles and having a smooth glossy surface. The screen is preferably formed by depositing a thin layer of the powdered glass on a sheet of metal, e.g. 0.00075 inch Ni, if the glass flows at a temperature below 650 C., or 0.005 inch Al, fusing the layer, depositing a second layer of a mixture of rather coarse glass powder and the phosphor, and heating, at a temperature and in an atmosphere which does not harm the phosphor, to cause the glass to flow around and enclose the phosphor particles. The plate is then cooled and the base stripped off if of Ni but left on the glass if of Al. If desired a third thin layer of glass may be applied above the glass/ phosphor layer. Alternatively a layer of glass is deposited followed by a layer of phosphor, and the sheet heated, but with this method higher temperatures are required, Phosphors such as ZnS should be heated in non-oxidising atmospheres such as N 2  or N 2  and H,. Fine particles are preferably removed from the glass powder. The coefficient of expansion of the glass is approximately the same as that of the phosphor. The glass and/or phosphor may be deposited by air settling or by means of a liquid medium. The deposit may be made on a metal, ceramic, or other support in the form of a sheet or layer of powder or flakes such as inconel powder, and the support left on the glass if it is not objectionable, or on a thick metal or other support from which the fused glass plate is removed. The support may have any desired curvature. The first deposit of glass may differ in composition and particle size from that used with the phosphor, thus the first glass layer may comprise 85 per cent B 2 O 3  and 15 per cent SiO 2 . The layers may be,fused in one heating operation, or separately. Specification 652,451, [Group XL (a)], is referred to.
Patent GB-449974-A (GB)
Title: An improved boring and drilling tool
IPC: E21B10/56
Filed: 1935-04-29
Abstract: 449,974. Well &c. drills. ASSAM OIL CO., Ltd., Britannic House, Finsbury Circus, London.-(Corstorphine, J. ; Digboi P.O., Assam, India) April 29, 1935, No. 12717. [Class 85] In a tool for drilling wells &c. comprising a plurality of substantially radial blades each with a lower transverse cutting edge and a substantially vertical reaming edge, the forward face of each blade has incorporated therewith one or more cutting teeth each presenting one or more vertical cutting edges towards the direction of rotation of the tool. The teeth may 'be made integral with the blade. In Fig. 1, each blade 1, 2, has three cutters 3, welded thereto and relatively staggered. Each cutter may have a protruding point 11 and may be made of a triangular bar, Figs. 6 and 7, with a recess 6 in which a bar 12 of hard metal carbide is fixed ; the recess is then filled with a low carbon steel, the faces of the latter being coated with hard metal carbide. Metal carbide 15 may also be applied to each blade and to the face 16 of the reaming edge, in which inserts of metal carbide may be provided. In another form, the metal carbide is omitted and the cutters of the blades are not relatively staggered, while in a further form, the cutters do not protrude below the transverse edges of the drill and may be built up integral with the metal carbide coating 15 of the blades. In Fig. 12, each blade has slots cut therein in which cutters 19 are welded ; the cutters may be similar to the cutters 3 of Fig. 1 or may have a narrow flat cutting face the lower part of which is coated with hard metal carbide 20. End cutters 22 are wider and their coating extended to form a reaming face 23.
Patent GB-1415993-A (GB)
Title: Spool for recording tapes
IPC: G11B23/037
Filed: 1974-03-21
Abstract: 1415993 Spools KIENZLE APPARATE GmbH 21 March 1974 [29 March 1973] 12737/74 Heading B8M Part A A spool for recording tape comprises detachable lateral guide flanges 1, 1<SP>1</SP>, independently and releasably mountable on a hollow core 2 by insertion into a bore 3 and engagement of radially elastic pawls 12, 13, 14 and/or 12<SP>1</SP>, 13<SP>1</SP>, 14<SP>1</SP>, with cut-out portions 9, 10, 11. The core consists of hollow part cylindrical portions 4 and 5 of different radii, the latter being supplemented by a clip 6 which serves to secure the internal end of the tape 7. Recessed portions 8 may be utilized for driving the spool during winding and/or to secure the flanges against rotation relative to the core as by ribs 18 and 19 of segment 17 entering therein. Flanges are further located on the core by segments 15, 16, 16<SP>1</SP>. The spools are normally driven via bridges 21, 211, a clutch (not shown) between a clockwork drive and the spool having fingers which enter recessed portions 22 between each two bridges. Projections 23, 23<SP>1</SP>, serve as a running collar for bearing the spool in a cassette or recording instrument.
Patent GB-574517-A (GB)
Title: Improvements in or relating to internal-combustion engines
IPC: F02B75/06
Filed: 1943-08-06
Abstract: 574,517. Driving engine auxiliaries. BOWER, G. S. Aug. 6, 1943, No. 12763. [Classes 7 (ii) and 7 (iii)] An internal combustion engine has an auxiliary, such as a fuel pump 10, the speed or timing of which affects the engine torque, driven from the engine through a spring drive and damping means so that the auxiliary is not affected by torsional engine vibrations. A bevel wheel 13 is driven from the crank-shaft, the drive being preferably taken from a nodal point of at least one mode of crankshaft vibration, and is mounted on a sleeve 14 splined at 17 to a hub 18. The latter is in turn splined at 20 to a torsion rod 19 the other end of which is splined to a torsion tube 25 keyed at 26 to a second sleeve- 27. This sleeve is coupled to the cam shaft by a floating coupling ring 31 which allows for slight misalignment. The torsion members 19, 25, permit limited angular movements between-the wheel 13 and the camshaft. The damping is effected by a fly-wheel device 41 which is as described in, Specification 574,516, [Group XXXII], the fly-wheel being mounted on a quickpitch thread on a sleeve 42 secured together with an oil-filled cylinder 41 on the cam-shaft. If the cam-shaft oscillates torsionally the fly-wheel tends to run at constant speed and is thus moved axially in the cylinder. This action pumps oil from one side to the other of the fly-wheel and provides the required damping, the torsional vibrations of the camshaft being thus reduced to a point where they produce no. substantial effect on the pump output.
Patent GB-884822-A (GB)
Title: Production of d-arabitol by fermentation
Inventor: TREVELYAN WILLIAM EDWARD
IPC: C12P7/18
Filed: 1959-04-15
Abstract: D-arabitol is produced by fermenting under aerobic conditions a liquid nutrient medium including sources of assimilable carbon, nitrogen and phosphorus with a D-arabitol producing species of the genus Hansenula and controlling the rate of utilisation of the assimilable carbon source in such a manner as to prevent the formation of substantial quantities of ethyl alcohol and/or ethyl acetate during the fermentation by limiting the concentration of one of the other required nutrients in the medium, conveniently the assimilable phosphorus.  Controlled quantities of the limiting nutrient may be added during the fermentation.  The arabitol may be recovered by adding phosphoric acid or calcium superphosphate to the fermented medium, neutralising with lime, filtering hot and crystallising the arabitol from the filtrate. Specification 870,622 is referred to.
Patent GB-787670-A (GB)
Title: Safety device for electrically heated appliances
IPC: H05B1/02
Filed: 1955-05-03
Abstract: 787,670. Thermal switches. JUBY, C. W., and REEVE, W. J. Jan. 13, 1956 [May 3, 1955], No. 12862/55. Class 38 (5). In a kettle or like appliance wherein, on overheating, a spring-pressed rod 5 moves to the right to eject a connector or otherwise break the heating circuit, the rod being normally held against such movement by a soldered ratchet-wheel 11, the solder 15 is contained in a cup 13, the outside surface of which constitutes a bearing for the ratchetwheel, and an inner projecting portion 14 of the ratchet-wheel dips into the solder. In the form shown, the rod 5 carries two pawls 9 which engage two ratchet-wheels mounted on two cups. The solder or fusible alloy in the two cups may have different melting points and the cup 13 or the projection 14 may be of square or other polygonal shape.
Patent GB-200066-A (GB)
Title: Improvements in or relating to hand knitting frames
IPC: D04B11/00
Filed: 1923-05-14
Abstract: 200,066. Boudios, Les Fits de E. June 28, 1922, [Convention date]. Straight-bar machines.-A fashioning apparatus for use in knitting corsets and belts with seamless hips, of elastic fabric, comprises two sections 8, 8<1>, carrying two set-, of transfer points 10, 13 and movable endways on a fixed central section 20 which may be furnished with usual transfer points 10<1>. The points 10, 10<1> are spaced the same distance apart; the points 13 are placed midway between adjacent points 10. The points 10 are mounted in bars 11 and the points 13 are mounted in slides 14, 14<1> which can be moved forward or backward by a handle 18, the points 13 sliding in grooves 12 in the bar 11. The sections 8, 8<1> are moved towards or away from one another by a cam 22 which bears against stops 23, 24 on the sections 8, 8<1>, a spring 25 being provided to hold the stops against the cam. The apparatus is mounted on pivots 3 which can be moved in slotted arms 1 by means of a handle 5.
Patent GB-611387-A (GB)
Title: Linear actuator
IPC: B64C25/24
Filed: 1946-04-30
Abstract: 611,387. Electric motor control systems. CHICAGO PNEUMATIC TOOL CO. April 30, 1946, No. 13022. Convention date, July 17, 1945. [Class 38 (iii)] [Also in Group XXX] In a reversible motordriven screw-and-nut actuator for aircraft controls and the like, having a main housing adapted for attachment to a first body, a connecting head adapted for attachment to the bodies to relative movement in either direction for stopping the motor, the stopping means includes a lever interposed between the housing and the first body. In Fig. 1, the motor 16, in a housing 61 drives the separately housed gearing 15 which rotates the screw 14 in the axially movable, internally-threaded sleeve 21 so that the head 23 attached thereto is extended or withdrawn from the main casing 27 according to the direction of rotation of the motor, and pivoted to the casing 27 by means of a pin 118 is a bellcrank lever 19 having two arms, the shorter of which is pivoted at its free end to anchor bracket 11, the free end of the other being pivoted to a switch actuating rod 81 extending through helical spring 17 which normally prevents any pivotal movement between the lever and the casing, but permits such pivotal movement upon development of a predetermined force between the housing and the anchor bracket which is set up by the arm 12 being forced against one of stops 116, 121. Spring 17 contained in housing 78 is maintained in a preloaded condition by washers 93, 94, normally seating against the ends of housing 78, one of which can be unseated by shoulders 92 or 97 on rod 81, upon the development of a predetermined pulling or pushing force between casing 27 and anchor bracket 11. Movement of rod 81 in either direction away from an intermediate normal position actuates switch 18, in housing 64, which operates either of relays 111 or 114, Fig. 5, which actuates switches 112 or 115 connecting the stator to a three-phase A.C. supply, these switches being arranged to provide opposite phase rotation, thereby rotating the motor in opposite directions. Lever 19, rod 81 and switch 18 remain in an off-normal position after the motor stops, the circuit being arranged to prevent connection of the motor to the supply until after the reversing switch 106 has been moved to its opposite position. A sleeve guide 25 anchored to the main housing has a wiper 29 attached to its outer end for cleaning the external surface of sleeve 21 as it slides in and out of said guide.
Patent GB-1279203-A (GB)
Title: Improvements in and relating to the production of esters
Inventor: CHILTON JOHN REGINALD
IPC: C07C67/48
Filed: 1970-03-18
Abstract: 1279203 Purification of esters IMPERIAL CHEMICAL INDUSTRIES Ltd 19 April 1971 [18 March 1970] 13036/70 Heading C2C The acidity of an ester product of an esterification reaction is reduced by contacting the ester with steam and a finely divided solid alkali at a temperature greater than 100 C. The ester may be derived from a saturated mono-, di- or tri-basic aliphatic or aromatic acid and a saturated mono-, di- or tri-basic aliphatic or aromatic alcohol. The alkali is suitably an alkali metal or alkaline earth metal hydroxide, carbonate or bicarbonate, or an ammonium carbonate or bicarbonate. Examples describe the production of plasticizer esters for P.V.C. by heating orthophthalic acid or phthalic anhydride in the presence of a titanium catalyst and an excess of one or more (C 4 -C 14 ) alkanols to 200-270 C., adding solid Na 2 CO 3 , reducing the pressure, admitting steam at 200-210 C. and removing excess alcohol at 140-210 C.
Patent GB-310663-A (GB)
Title: Process for producing steel castings
IPC: B22C9/06
Filed: 1928-05-03
Abstract: 310,663. Evans, W. E., (Ges. f³r Forderanlagen E. Heckel). May 3, 1928. Casting processes; moulds. -In casting steel wheels or other articles in moulds consisting of a number of sections which are released in zones before contraction takes place, the release is begun before all the steel has been poured into the mould and, if a wheel is being cast, proceeds from the rim towards the. hub. In the mould shown the part a is raised, b lowered and the halves of the ring hare separated, after an interval the parts c, dare withdrawn, then the parts e, f, and finally the mandrel g, the wheel being then only supported by the table i.
Patent GB-757709-A (GB)
Title: Improvements in or relating to screw-spikes
IPC: E01B9/10
Filed: 1953-05-12
Abstract: 757,709. Wood-screws; rail-spikes. SOC. DES FORGES & BOULONNERIES HERMANT HICQUET & D'ARS SUR MOSELLE. May 12, 1953 [June 17, 1952], No. 13199/53. Class 89 (2). [Also in Group XXII] A screw for fixing a permanent-way rail 2 to a sleeper 2a comprises a non-thread upper part with head 1 and a conically tapered core 5 with a screw-thread 7 of constant crest diameter, the crest being progressively truncated from the screwend to said upper part. The pitch may be constant or may decrease progressively from said end to said upper part. The hole which receives the screw has a conical entrance 8 leading to a parallel bore 9 of substantially the same diameter as the end of core 5.
Patent GB-820004-A (GB)
Title: Improvements in the cure of polyurethanes
IPC: C08G18/68
Filed: 1957-04-25
Abstract: A method of curing a polyurethane which is an organic diisocyanate-modified polymer, the polymer being selected from polyesters, polyethers, polyester-polyethers and polyester-polyamides, comprises heating the polyurethane with an organic peroxide having not more than 18 carbon atoms and selected from di-tertiaryalkyl peroxides, dicumyl peroxide and di-(3-methyl-pentynyl)-3-peroxide.  While saturated polyurethanes are cured by this method, unsaturated polyurethanes such as those produced by the method of Specification 820,005 are preferred. Suitably 0.25 to 10 parts of peroxide to 100 parts of polyurethane (by weight) are employed.  Carbon black is the preferred filler. Others specified are asbestos, blanc fixe, clay, iron oxide, lithopone, mica, silicious materials, titanium dioxide, whiting and floc.  A curing temperature of about 100 DEG  to 250 DEG  C. is usually sufficient.  Example (1) describes the curing of compositions comprising (A) dicumyl peroxide, (B) t-butyl peroxide with the reaction product of diphenylmethane diisocyanate, p,p1-diaminodiphenylmethane, and a polyester from adipic acid, ethylene and propylene glycols and 2-butene-1,4-diol (with benzoyl peroxide and t-butyl hydroxperoxide as alternative catalysts in comparison cures).  In generally similar examples the materials cured are selected from the reaction products of adipic acid, ethylene glycol and propylene glycol polyester, diphenylmethane diisocyanate and diaminodiphenylmethane; an adipic acid/ethylene glycol/propylene glycol polyester, p,p-diphenylmethane diisocyanate, p,p1-diaminodiphenylmethane and methylvinyl carbinol; polytetramethylene glycol, toluene diisocyanate and water; a diisocyanate modified polyether; an adipic acid/ethylene glycol/2-butene-1,4-diol polyester, diphenylmethane diisocyanate and p,p1-diaminodiphenylmethane.  Carbon black, iron oxide and stearic acid are other ingredients of some of the compositions.  Comparison cures with other peroxides are also described.
Patent GB-132164-A (GB)
IPC: C01B31/12
Abstract: 132,164. Wetter, J., (Weinrich, M.). Jan. 31, 1919. Drawings to Specification. Carbon, applicable for filtering purposes or in the manufacture of printer's ink, is obtained by mixing molasses or other solutions containing sucrose, glucose, &c. with lime, comminuting the hard mass obtained, drying and calcining, cooling the burnt material, and then removing the free lime by washing and boiling with dilute hydrochloric acid. Powdered, caustic, or slaked lime, or a mixture of these is used, the proportions of the materials, the density of the solutions treated, and the temperature of treatment being varied accordingly. Milk of lime may be used instead of powder.
Patent GB-717069-A (GB)
Title: Improvements relating to the construction of motor vehicles
IPC: B62D43/08
Filed: 1952-05-26
Abstract: 717,069. Road vehicles. DAIMLERBENZ AKT.-GES. May 26, 1952 [May 25, 1951], No. 13324/52. Class 108(1) A road vehicle having a central driving position has spare wheels 8 mounted adjacent the steering column 4 or on the transverse wall at the rear of the seats access to a spare .wheel being obtained via a cover or door in the skin of the vehicle.
Patent GB-1164142-A (GB)
Title: Improvements in or relating to Gears for Gear-Crimping Filaments and Fibres
Inventor: DUNNELL ALLAN KEITH
IPC: D02G1/14
Filed: 1966-03-25
Abstract: 1,164,142. Gear crimping. IMPERIAL CHEMICAL INDUSTRIES Ltd. 10 March, 1967 [25 March, 1966], No. 13325/66. Heading D1F. At least one gear wheel of an assembly of gear wheels for crimping filaments or fibres is composed of, or girded or coated with a plastics material, for example, polyoxymethylene or polyurethane. The plastics gear wheel or wheels may be moulded or cut. The assembly may include a steel gear wheel having electric heating means.
Patent GB-493199-A (GB)
Title: Improvements in hand or arm supporting devices for the interior of motor car bodies
IPC: B60N3/02
Filed: 1938-05-04
Abstract: 493,199. Hand-grips. CROVATTO, M. May 4, 1938, No. 13372. [Class 103 (iv)] [Also in Group XIV] A hand-grip for vehicles comprises a loop B, Fig. 1, secured to a pin c, Fig. 2, which is rotatably mounted in a member a secured to the body work and is biassed by a spring e so as normally to maintain the loop B in a horizontal position. The loop, of fabric, for instance, with a stiffening of leather or other material, is secured to the pin c by means of a sleeve h, Fig. 4, which embraces the pin and is secured thereto by a key l and which has an extension k to which the ends of the loop B are clamped by a metal binding R, S, which engages projections p on the extension k. A sheath t, Fig. 1, may cover the ends of the loop.
Patent GB-1385941-A (GB)
Title: Printing cylinder adjustment
Inventor: FROST H-H
IPC: B41F13/14
Filed: 1972-03-22
Abstract: 1385941 Printing apparatus WINKLER & DUNNEBIER MASCHINENFABRIK UND EISENGIESSEREI KG 22 March 1972 [24 March 1971] 13380/72 Heading B6C A rotary printing cylinder 1 is adjusted axially by movement of a rigidly keyed bush 7, which is pushed bodily between extreme positions within a housing 21 when a threaded bolt 17 is rotated, and is adjusted circumferentially by axial movement of a helical gear 13 which is slidable relative to the bush 7, and in normal use serves to drive the bush 7 and cylinder 1. Being helical, the gear 13 rotates when it is shifted laterally of a further gear with which it meshes, and the other gear is held still. Lateral movement of the gear 13 is brought about by rotation of a nut 33, which turns a threaded bush 32 and displaces the gear. The nut 33 carries a scale, and end plate 31 a mark against which the nut is set, and the bolt 17 carries a scale on disc 22.
Patent GB-557281-A (GB)
Title: Improvements in and connected with cleats for electric cables
IPC: H02G3/32
Filed: 1942-09-24
Abstract: 557,281. Electric cable clips. CRABTREE & CO., J. A., McLOUGHLIN, H. F., and HILL, W. E. Sept. 24, 1942, No. 13435. [Class 36] A cable clip comprises a pair of hinged detachable members a, a<SP>1</SP> containing rubber &c. compressible blocks h for seating against the cables. The hinges are formed by loops b, c connected by removable pins d for insertion or removal of a cable. Each block has a stud k entering an opening l in its plate, adjacent plates being secured together by screws engaging countersunk holes e and tapped openings f. The blocks have bevelled ends i engaging corresponding ends of the plates.
Patent GB-1526141-A (GB)
Title: Production of hydroxytelechelic polymers and oligomers
IPC: C08F4/28
Filed: 1976-04-02
Abstract: 1526141 Hydroxytelechelic oligomers and polymers AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 2 April 1976 [4 April 1975] 13438/76 Heading C3P A process for the simultaneous production of hydroxytelechelic (i.e. HO-terminated) oligomers and polymers comprises polymerizing one or more ethylenically unsaturated monomers with UV radiation in the presence of H 2 O 2 , the polymerization being effected in a diluent medium comprising an alcohol. By selecting particular alcohols, the product can be obtained with either unimodal or multimodal mol. wt. distribution.