baber/WOPTO huggingface dataset:
Patent GB-1274837-A (GB)
Title: A process for the production of allyl esters
Inventor: SWODENK WOLFGANG
IPC: C07C69/02
Filed: 1970-06-22
Abstract: 1,274,837. Allyl esters. FARBENFABRIKEN BAYER A.G. 22 June, 1970 [2 July, 1969], No. 30130/70. Heading C2C. Allyl esters are prepared by reacting allyl acetate with a carboxylic acid methyl or ethyl ester in the presence of an alkoxide of a metal of Periodic Groups Ia, IIa, IIIa (Mendeleev) or a complex salt thereof. An excess of the allyl acetate is used and saturated and unsaturated aliphatic and cycloaliphatic, substituted aliphatic, cycloaliphatic, araliphatic mono- and polycarboxylic acids and aromatic mono- and polycarboxylic acids and carbonic acid are listed. The catalysts may be lithium, sodium, potassium, magnesium, calcium methylates or mixed methylates and others. Examples describe the reaction of allyl acetate with methyl propionate, methyl stearate, hexahydrobenzoic acid methyl ester, adipic acid dimethyl ester, chloracetic acid ethyl ester, dichloroacetic acid methyl ester, ethoxyacetic acid methyl ester, diglycolic acid dimethyl ester, phenyl acetic acid methyl ester, methyl acrylate, methyl methacrylate, ethyl cinnamate, methyl sorbate, maleic acid dimethyl ester, methyl benzoate, dimethyl phthalate, dimethyl terephthalate, and carbonic acid diethyl ester.
Patent GB-465067-A (GB)
Title: Improvements relating to the carbonisation of coal
IPC: C10B55/02
Filed: 1935-11-01
Abstract: <PICT:0465067/III/1> <PICT:0465067/III/2> Coal is extracted and carbonized by treating the coal in suspension in oil in a series of heated containers, separating the gases and vapours produced from the suspension as it passes from one container to another, passing the treated suspension to a boiler where the pressure is released, and coking the viscous residues.  The coal/oil suspension is fed from a line 1 through a coiled pipe 4 in a heatexchanger 5 and a pipe 6 into the bottom of the first of six heated cylinders 7 individually heated in flues 8a of a furnace 8.  Each cylinder comprises rotary member 9 carrying a number of separating plates 11, Fig. 2, supported by flexible steel plates 13.  These plates which run the length of each member 9 divide the coal suspension in the annular passages 10 into vertical sections and also serve to rub down and emulsify the coal. The total products from each cylinder pass off at the top through a pipe 15 into an adjacent unheated container 16 where separation of vapours and gases from liquids takes place, the liquids passing down the separator and into the bottom of the next cylinder 7, while the gaseous products pass off through an automatic blow-off valve 18 operated by a float 17 and thence through a line 19 in which they are mixed with the liquid products from the last chamber 7 and pass together into a boiler 20 from which vapours pass to a fractionating column 28 and residues to retorts 25 where they are distilled to coke.  The vapours evolved from the coking oven are passed through a drier 25a to the heat-exchanger 5, to which bottoms from the column 28 are also passed through a line 33a, the combined condensate being led off through a pipe 34 to storage and used for preparing the coaloil suspension.  Vapours taken off from the top of the column 28 through a pipe 29 are condensed in a cooler 30, the condensate being separated from water and gases in a separator 32 connected by a pipe 32a to a gas blow-off line 28a.  The reaction temperature is preferably increased in steps in each successive pair of cylinders, e.g. 300--420--450 DEG  C. while the boiler 20 is heated to 320 DEG C.  Specifications 436,380 and 446,357 are referred to.
Patent GB-1207952-A (GB)
Title: Improvements in or relating to extrusion apparatus
Inventor: CAMPBELL RONALD
IPC: B29C48/11
Filed: 1966-07-06
Abstract: 1,207,952. Extrusion dies. MINISTER OF TECHNOLOGY. 6 Oct., 1967 [6 July, 1966], No. 30289/66. Heading B5A. In the production of extrudates having a plurality of bores, an extrusion die is used comprising a convergent nozzle 1 and a plate 2 affixed to its upstream end, the plate 2 supporting a plurality of flexible pins 3 which extend downstream to a region where external die pressure on the extruding material is relieved. Pins 3 may be made from cable or high tensile steel wire and may have an anti-friction coating of PTFE. Preferably the pins are sufficiently flexible to follow the stream-lines of flow and are arranged to form the desired pattern of bores by being slid through appropriate ones of holes 5 in plate 2 to be held against downstream movement of nipples 7. Plate 2 may support a mandrel for the production of tubes. The plate may be replaced by one or more pin-carrying spiders. The die is particularly intended for use with viscous materials, e.g. pastes, clays, ceramics, certain plastics, which are cured or cross-linked after extrusion, and in particular solid propellants.
Patent GB-868401-A (GB)
Title: Illumination apparatus
IPC: E01F9/615
Filed: 1959-09-05
Abstract: 868,401. Airfield lighting beacons. HENSCHEL, W. Sept. 5, 1959, No. 30385/59. Class 75(4). A lighting device especially for use as an airfield marker beacon, comprises a base 21, a transparent outer envelope 44 mounted on the base and enclosing an inner tubular envelope 35 in which is mounted a fluorescent discharge tube 38. The tube 38 is carried in a socket 34 and held in place by a cap 40 at the upper end, which also forms the electric supply means. The base 21 is supported by a downwardly directed tube 24 engaging in a socket 11, screw threaded on to a base 13 which may be the cover-plate of a housing for a transformer. The socket 11 has an annular channel groove 26 forming a weakened portion so that the device will yield on coming into contact with a moving object. The outer envelope may be of coloured plastic.
Patent GB-1436085-A (GB)
Title: Liquid crystal display device
IPC: G02F1/1335
Filed: 1974-07-09
Abstract: 1436085 Modulating light SUWA SEIKOSHA KK 9 July 1974 [31 July 1973] 30396/74 Heading H4F In a display arrangement comprising an electro-optic liquid crystal cell and at least one linear polarizer of the absorbing type on a common optical path, the or at least one of the polarizers has a transmittance towards normally incident unpolarized white light of 38-15%. As particularly described, the cell is a 90 degree "twist" cell comprising glass substrates and a polarizer with the specified transmittance bonded to the outer surface of each substrate. A white light scattering plate is mounted on one polarizing plate.
Patent GB-244100-A (GB)
Title: Apparatus for the vertical adjustment with respect to the surface of the work of thesuspended tool of wood grinding or polishing machines
IPC: B24B7/22
Filed: 1925-12-02
Abstract: 244,100. Rogers, F. H., (Steingõsser & Co.). Dec. 2, 1925. Flat extended surfaces, surfacing and polishing. -In a machine for grinding and polishing wood, means are provided for adjusting the tool vertically to and from the work. The work c is supported on a table a and is ground &c. by a tool g supported on a frame f movable along the work on rollers e running on runways d. The tool is carried by a frame h movable across the work on rollers i resting on bars k and moved, through a chain &c. m, by operation of a handle s which may be coupled to a spur wheel q driving, through a spur wheel p, one of the sprockets l supporting the chain m. In order that the tool may be adjusted vertically, the bars k are pivoted to links l, which are pivoted at their other ends to the frame f. One of the shafts r on which the links are carried has secured thereon a toothed sector 4 meshing with a wheel 5 connected with a worm-wheel 6, which is moved by a worm 7 operated by a hand-wheel 8, where: by rotation of the hand-wheel raises or lowers the bars k. The bars k may be suspended below the horizontal frame f instead of being placed above as shown. Specification 244,101 is referred to.
Patent GB-825526-A (GB)
Title: Improvements in or relating to rotary pumps
Inventor: SADLER PETER
IPC: F04C18/324
Filed: 1955-12-09
Abstract: 825,526. Rotary pumps. N.G.N. ELECTRICAL Ltd. March 5, 1956 [Dec. 9, 1955], No. 30503/57. Divided out of 825,524. Drawings to Specification. Class 110 (2). The subject-matter of this Specification is substantially the same as that described in Specification 825,524, but the claims differ. Specification 825,527, [Group XXIX], also is referred to.
Patent GB-1492398-A (GB)
Title: Crochet teaching aids
IPC: D04B33/00
Filed: 1975-08-05
Abstract: 1492398 Crocheting-apparatus W BROUGHTON 5 Aug 1975 [10 July 1974] 30533/74 Heading D1C An aid for holding crochet stitches to facilitate teaching crochet work comprises a former having a series of posts 6 upstanding from one edge of a body portion 5 with at least the outer end portions of the posts, which are formed with holes 10, directed at or nearly at right angles to the plane of the body portion so that the holes 10 are aligned, and a rod 12 is insertable through the holes to define with the posts a series of side by side apertures capable of accommodating the passage of crochet hooks to form stitches supported on the roll. The whole of the posts may be at right angles to the body portion, e.g. by mounting the posts on a flange at said one edge. The rod has a pointed end and a head 13 which may engage tightly in the end hole 10 to secure the rod. The former may be of plastics and may be flexible so as to form a circle in which shape it is retained by fasteners at its ends. The ends of the posts may be inclined at slightly more or less than 90‹ to grip the rod more securely.
Patent GB-997587-A (GB)
Title: Mould construction
Inventor: WERRELL HARRY GEORGE
IPC: B29C33/00
Filed: 1962-08-09
Abstract: 997,587. Mould construction. KENILWORTH MANUFACTURING CO. Ltd. Aug. 9, 1963 [Aug. 9, 1962], No. 30663/62. Heading B5A. A method of constructing a mould comprises coating a pattern with thermosetting resin and allowing it to set and then applying a thermosetting resin composition adapted to set in a rigid porous mass, allowing this to set and then removing the pattern. A pattern mould is coated with a paste 2 of thermosetting resin containing accelerators and catalyst. The layer is allowed to set and another coating 3 applied, of the same material but without the accelerator. The pattern mould is then filled with thermosetting composition 4 and this and the layer 3 allowed to set after which the pattern is removed. Holes 5 are drilled through the surface layers to form a vacuum mould. Without the holes however, the mould may be used in blow-moulding and other moulding processes. A resin impregnated glass fibre layer may be disposed between the two surface layers for strengthening purposes. A similar layer may be embedded in the porous member to limit circulation of a cooling medium to that part of the mould adjacent the surface layers. The surface layers of thermoset resin may be epoxy resin, which may contain metallic powder, such as aluminium or zinc. The porous member may be metal granules, e.g. crushed aluminium foil bonded together by a thermoset resin, e.g. epoxy resin.
Patent GB-818997-A (GB)
Title: Improvements in or relating to aprons
IPC: A41D13/04
Filed: 1956-10-09
Abstract: 818,997. Aprons. HUXLEY, I. B. Jan. 8, 1958 [Oct. 9, 1956], No. 30693/56. Class 141 A waterproof apron 10 made of rubber, thermoplastic material, &c. is provided with a detachable outer layer 14 of towelling or other absorbent material. The upper edge 15 of the absorbent layer is connected to the waistband 11 by buttons and buttonholes, press studs, or hooks and bars, or by detachable buttons engaged in registering holes in the two layers. The absorbent layer may cover substantially the whole apron, as shown, or it may comprise a smaller square, Fig. 5 (not shown), having one corner secured at the centre or towards one side of the waistband, or a pentagonal layer 24. Fig. 6, secured along one edge 25 to the waistband. The layer 14 may be convertible into a pocket by means of a draw-tape 20 or a permanently attached tape along its lower edge.
Patent GB-391830-A (GB)
Title: Improvements in and relating to dough moulding machines and the like
IPC: A21C1/14
Filed: 1931-11-05
Abstract: 391,830. Machinery guards. ARMSTRONG, WHITWORTH, & CO. (ENGINEERS), Ltd., SIR W. G. and PRATT, H., Scotswood Works, Newcastleon-Tyne. Nov. 5, 1931. No. 30694. [Class 80 (iv).] In a machine for moulding dough, bricks, soap tablets, &c., a hinged member 3 yields inwardly when the operator's hand is caught between it and one of the moulds 21, moving into the path of a vertically reciprocating moulding tool, causing a projection 7 on this member 3 to move a stop or pillar 8 movably mounted on the table of the machine under a stop 16 on the descending crosshead 11 so that further downward movement of the latter is prevented. The projection 7 may, instead of engaging the stop 8, contact a separate abutment moving with the stop 8. The hinged member comprises a flap door 3 rotatable about a horizontal hinge pin 5 which at its outer end is bent at right-angles to contact the switch button 18 of the driving motor. Two such doors 3, 4 are located in guards 1, 2 in diametrically opposite positions with respect to a column 10 on which the crosshead 11 reciprocates. The guards 1, 2 are hinged at opposite ends and, apart from periodic opening to adjust the moulding tools carried by brackets A, B, are permanently in the positions shown. Projections 7, 7<1> and stops 8, 8<1>, 16, 16<1> are provided at diametrically opposite positions. The stops 8, 8<1> are mounted on a ring 9 rotatable about the column 10 and are urged by springs 12, 12<1> secured to hooks 13, 14 on the ring and column respectively, the springs being mounted in slots 15 to allow a limited angular movement. A weaker spring 19 maintains the projection 7 against the stop 8 so that in the event of the latter not being withdrawn from beneath the stop 16, the door 3 remains open and the motor circuit broken. The vertical depending stop 16 may be replaced by a projection 17 cast on the crosshead 11. Side guards 20 are also provided. The motor drive may be through a clutch slipping at a load slightly above that necessary for the moulding operations, so that no damage is incurred by the contact of stops 8, 16 if for any reason the motor circuit is not broken.
Patent GB-234728-A (GB)
Title: Improved means for controlling the supercharging of aircraft internal combustion engines
IPC: F02D9/00
Filed: 1924-12-20
Abstract: 234,728. Lorenzen, C., and Lorenzen- Turbinen-Akt.-Ges. Dec. 20, 1924. Regulating.-The supply of supercharging air or other gases to the induction pipe of an aircraft engine is regulated automatically according to the altitude and also mechanically by the pilot. A flexible container 3 filled with air at sealevel pressure is arranged within an airtight casing 6 open at 8 to the induction pipe 10, the supply of air or other gas to which, from a compressor connection 11, is regulated by valves 1 connected to the container 3. This container is further connected by a spindle 14 to a hand lever 18, which may be connected to a distant control operated by the pilot. The spindle 14 may bo further adjustable by means of a nut 21, and is hollow and fitted with a cap 16, by removal of which the container 3 may be opened to the atmosphere at sea level.
Patent GB-183770-A (GB)
Title: Trousers stretcher
IPC: A47G25/44
Filed: 1921-11-17
Abstract: 183,770. Meyer, N. Aug. 4, 1921, [Convention date]. Trouser stretchers.-Sliding bars 1, 1<a> carry at one end spring clips b and at the other end are formed as coils 2, 2a, respectively. The coils form embracing guides for the opposite sliding member and are flattened at 3, 3a for attachment of the corresponding hooks 4, 4<a>, which are similarly flattened to prevent turning movement. Each bar has a projection 10, between which and its coil is placed a spring 9, Fig. 5, which provides a friction device for maintaining the bars in their adjusted position.
Patent GB-188213-A (GB)
Title: Improvements in or relating to recording pressure gauges and like measuring instruments
IPC: G01L19/08
Filed: 1921-11-17
Abstract: 188,213. Dugon, A. L. Nov. 17, 1921. Disc recording-apparatus.-In a measuring instrument such as a recording pressure gauge of the kind described in Specifications s 25986/12, 13710/14, 108,775, and 162,582, and in which the clockwork mechanism is so arranged that the record disc driving spindle serves also as a means for winding the said mechanism, the said spindle e is provided with a screw-threaded boss h having a plain flange and which projects through a central hole in a fixed supporting plate f that forms a backing over substantially the whole area, of the rotatable record disc d. The record disc is secured to the boss h by means of a clamping nut i which is formed to engage the clock winding key, Fig. 6, or is apertured centrally to give access to or permit the passage therethrough of the end of said driving spindle. The clockwork b is attached to an interchangeable back a by means of screws c and the plate f is supported by pillars g. The spindle e which is connected to the inner end of the main spring the outer end of which is secured to its casing carries a ratchet wheel e<1> that cooperates with a pawl on a pinion of the escapement train of wheels.
Patent GB-391860-A (GB)
Title: Improvements relating to steam-heated radiators particularly intended for railway vehicles
IPC: B61D27/00
Filed: 1931-11-06
Abstract: 391,860. Radiators for heating buildings &c. ; thermostats. TOMLINSON, A. V., 65, Victoria Street, London.-(Compagnie des Freins Westinghouse ; 23, Rue d'Athenes, Paris.) Nov. 6, 1931, No. 30815. [Class 64 (ii).] In a steam heater for railway vehicles having a thermostatic regulating rod, the rod is composed of two or more parts secured end to end. these parts having different temperature coefficients. The heater comprises two headers 1, 2 connected by gilled tubes 3 .. 6 of copper. Steam is admitted through valve 7 mounted on a regulating rod or tube 13, the. two parts of which have different relatively low temperature coefficients so that the rod as a whole may have any desired expansibility within limits. When a tube is used, it may be perforated to allow access of steam. The tube may have one or more of its parts formed of perforated sheet stainless steel, ' the edges parallel to the axis being butted but not welded. Alternatively, the rod or tube may comprise a middle perforated tube of copper secured to two rods or tubes of the alloy known under the Registered Trade Mark " Invar." The rod 13 is secured at one end to a steam-tight bellows 15, the valve 7 being biased toward the closed position by a spring 17. Temperature adjustment is effected by a handle 19 carrying a threaded abutment for the end of the rod 13, and an adjustable stop 21 may be provided. One of the radiating tubes 5 may have an inner tube 25 to conduct air from the chamber 26 to the outlet 24 when steam is admitted.
Patent GB-808696-A (GB)
Title: Improved refrigerator
IPC: F25D17/06
Filed: 1957-10-02
Abstract: 808,696. Refrigerators. GENERAL MOTORS CORPORATION. Oct. 2, 1957 [Oct. 19, 1956], No. 30828/57. Class 29 In a refrigerator, air is forced over an evaporator cooling the freezer compartment by conduction through the walls, thence through a passage into the freezer compartment. the passage being such that the temperature of the air is raised so as to reduce the relative humidity. A domestic refrigerator has inner liners 22, 24 defining food storage and freezing compartments respectively, closed by doors 26, 28. Below the freezing compartment is a space 30 housing an evaporator 32 of which the fins are in contact with the floor of the freezing compartment. Leading from the rear of space 30 are passages 34, 38 extending across the width of the freezing compartment, passage 38 containing a fan 36 and air directing baffles 40, 42. Cold dry air from passage 38 enters the freezing compartment through ports 44. passage 52 leads from the fan to an opening 54 in the liner 22 thence circulating through the food storage compartment. Air in passage 52 is warmed by the food storage compartment and through the cabinet insulation. The position of a flap 56 covering opening 54 is determined by the action of a bellows 58 in the food storage compartment on lever 60. A channel shaped passage 48 surrounding the freezer compartment receives air from the compartment through ports 50 and from the food compartment through flexible tubes 64, and is in communication with space 30. Defrosting of the evaporator by an electric heater 92 is initiated by a time switch which also stops the fan and compressor motors. Defrost water is drained to a receptacle 131 having a dam 133. Water overflowing the dam empties to a tray 137 in the machine compartment where it is evaporated, while that remaining provides a heat seal for the space 30. The fan motor is switched off on the opening of either door.
Patent GB-807518-A (GB)
Title: Improvements in or relating to protection and control systems for synchronous motors
IPC: H02H7/08
Filed: 1955-10-31
Abstract: 807,518. Control of A.C. motors. IGRANIC ELECTRIC CO. Ltd. Oct. 31, 1955 [Nov. 10, 1954], No. 31063/55. Class 38 (3). A synchronous motor 10 is started under normal operating conditions by closing switch 18 to energize contactor 16, the motor accelerating as an induction motor so that the voltage induced in field winding 12 decreases in frequency as the motor approaches synchronism. At low speeds, the field current passes through relay coil 28a rather than reactor 22 so that contacts 28b open to interrupt the circuit of coil 26b before the coil can actuate its contacts. Thus, contacts 26a, 26e remain closed until the motor approaches synchronous speed and the relay 28 is de-energized to actuate contactor 26, the D.C. excitation circuit of the field winding being then completed through contacts 26c, 26d. If the motor fails to start when the contactor 16 is closed, the current induced in the field winding remains at a high frequency and a portion of the voltage drop across resistor 24 becomes effective to actuate a sensitive thermal element 20c whereby contacts 20a operate to open the main contactor. The voltage drop across the resistor is applied through capacitor 34 to transformer 32 having the element 20c in its secondary circuit. To prevent false operation of the element 20c under normal operating conditions, it is arranged that the current flowing through the element diminishes rapidly as the frequency of the field current is reduced. For this purpose, the transformer 32 is provided with an air gap to reduce saturation and to make the secondary current more sensitive to changes of frequency, the inductive character of the transformer also aiding in this effect. Moreover, the capacitor 34 passes high-frequency currents but blocks those in the low-frequency range. The values of the circuit elements 30, 32, 34 are so chosen that the circuit is series resonant at a frequency just above that of the supply source, the transformer 32 being replaceable by a swinging choke. If the motor starts but does not pull into synchronism within a predetermined period, the closure of contacts 26e is prolonged so that thermal element 20b opens the contacts 20a.
Patent GB-1066723-A (GB)
Title: Aluminum alloy particularly for galvanic anodes
Inventor: REDING JOHN THOMAS
IPC: H01M4/46
Filed: 1965-07-22
Abstract: An alloy consists of .Ga.0.003 - 0.2% .Bi.0.02 - 2% .Pb.0.02 - 2% .Al.the remainder,  the Bi/Pb ratio being 0.5 - 2.  The alloy has a high oxidation potential and may be used for cathodic protection anodes, primary cell anodes, paint pigments, coatings, as an active ingredient in flares, as a reducing agent and in the preparation of aluminium alkyls.
Patent GB-341908-A (GB)
Title: Improvements relating to paper or like cartons or receptacles
IPC: B31B1/74
Filed: 1929-10-15
Abstract: <PICT:0341908/III/1> Paper or like cartons are coated internally with molten wax which is sprayed into the inverted carton b from a nozzle or pressure injector a whilst the carton is supported over a wax bath.  Reference has been directed by the Comptroller to Specifications 3301/06, 22536/07, [both in Class 18, Boxes &c.], 142,867 and 239,013, [both in Class 95, Paints &c.].