baber/WOPTO huggingface dataset:
Patent GB-835201-A (GB)
Title: A method of and furnace for refining glass
Inventor: GELL PHILIP ANTHONY MAUNSELL
IPC: C03B5/027
Filed: 1955-02-22
Abstract: 835,201. Electrode furnaces. ELEMELT Ltd. April 12, 1956 [Feb. 22, 1955(2)], Nos. 5240/55 and 5242/55. Class 39(3) [Also in Group XXIII] In the refining zone of a glass furnace having separate melting and refining zones or, as shown, in the common melting and refining zone 10, electrodes 13, 14 are provided along and preferably slightly in front of the end walls 30, 31 to form an alternating current path along the length of the zone to induce the convection currents shown in Fig. 3, and an opening 37 is provided in the floor of the furnace of such dimensions that a downward pull is exerted on the lower portion (i.e. the more refined portion) of the glass above the opening, which pull exceeds the upward convection flow which continues in the (less refined) upper portion. The opening communicates with a duct 12 leading to the forehearth or other zone 11 of the furnace and the dimensions of the opening are:- Length L (i.e. dimension parallel to the current path between electrodes 13 and 14) between one eighth and one half the length of the current path, and width W between half and the whole of the width of the zone 10, L in the form shown being less than W. The electrodes may be as described in Specification 756,382, and coolers 53 acting on-the blocks 54 near the ends of the opening may be provided. Electrodes may be provided in the duct 12 or, as shown, electrodes 15 may be provided in the zone 11 so that an auxiliary current path is formed in the duct 12 and the auxiliary current is of such magnitude as to produce the desired working temperature in the glass in the zone 11. Specifications 835,202 and 835,205 also are referred to.
Patent GB-608322-A (GB)
Title: Improvements in locks
IPC: E05B25/00
Filed: 1946-02-20
Abstract: 608,322. Door locks. LEGGE & CO., Ltd., J., and LEGGE, W. H. Feb. 20, 1946, No. 5247. [Class 44] In a double-handed lock of the type in which the bolt is secured by a pivoted tumbler which is engaged by the key, the tumbler spring 22 engages a stump 14 on the back plate 15 of the lock and co-operates with two abutments 19, 19a on the tumbler 11, the ends 23, 23a engaging the walls 24, 24a of the casing. The bolt is normally retained in the shot or withdrawn position by the lug 17 on the tumbler engaging respectively behind or in front of the abutment 18 on the bolt. The key engages one- or other of the inner edges 13 and simultaneously displaces the tumbler and moves the bolt as seen in the drawing. In a modification the tumbler, which is pivoted on a pin carried by the bolt, engages an abutment fixed to the lock casing. The spring is secured to the pin and engages lugs on the tumbler, the ends resting against abutments on the bolt.
Patent GB-838890-A (GB)
Title: Improvements in and relating to the manufacture of semiconductor devices
IPC: H01P1/18
Filed: 1958-02-19
Abstract: 838,890. Treatment of electrodes of semiconductor devices. PHILCO CORPORATION. Feb. 19, 1958 [Feb. 25, 1957], No. 5386/58. Class 37. The electrodes of a semi-conductor device are prepared for soldering by selectively plating the electrodes with a solderable material whilst a film of oxide prevents the plating of the whole device. A device such as a silicon alloy transistor with an aluminium electrode is covered with an oxide film which is then abraded where it covers the electrode. The abraded oxide film is then etched off in hydrochloric acid. The aluminium surface may then be zinc coated by placing the device in a zinc plating bath consisting of a solution of ZnSO 4  and HF. After rinsing, the device is ready for plating with a readily solderable material such as nickel. This is preferably done in an alkaline plating bath, a suggested composition of which is NiCl 2 .6H 2 O 30 gms., NaH 2 PO 2 .H 2 O 10 gms., (NH 4 ) 2  HC 6 H 5 O 7  65 gms., NH 4 Cl 50 gms., H 2 O to one litre and NH 4 OH to make pH 8 to 9. Cobalt or cobalt nickel alloys are also suitable materials for plating the electrode.
Patent GB-662786-A (GB)
Title: Improvements in or relating to cartridge burning devices
Inventor: GORDON FRANCIS CHARLES
IPC: F02C7/277
Filed: 1949-02-28
Abstract: 662,786. Generating combustion products under pressure. ROLLS-ROYCE, Ltd. Feb. 27, 1950 [Feb. 28, 1949], No. 5433/49. Class 51 (i). In a cartridge-burning device for producing pressure gas for use in a motor such as a starting motor for a gas turbine, the outlet grid comprises a central plate 10 and one or more ring-like members 11 encircling the plate, the plate and ring-like member being secured together so as to be capable of relative radial expansion. The plate and the ring-like member have radial slots 14 and 19, respectively, projecting inwardly from their peripheries, and the central plate is retained in position in a recess 15 in the ring-like member 11 by the ring 12 welded to the member 11, freedom for both radial and axial expansion being provided. The member 11 is supported from the cartridge-burning device by the bolts 24 screwed into the structure 23 the bolts having spigot engagement with holes 21 in the projections 20a of the ring-like member 11.
Patent GB-1408142-A (GB)
Title: Polymeric compositions
IPC: C08G18/42
Filed: 1971-12-09
Abstract: 1408142 Lactone-modified polyesters LAPORTE INDUSTRIES Ltd 5 Feb 1973 [9 Dec 1971] 5490/73 Divided out of 1408141 Heading C3R A modified polyester is prepared by reacting an organic polyol containing three or more hydroxyl groups with a polycarboxylic acid or anhydride to give a polyester containing hydroxyl side groups and then modifying the polyester by reacting at least some of the hydroxyl side groups with a lactone of the formula in which X is (CR 2 ) n , where n is 4 to 7 and R is hydrogen, methyl, ethyl, n-propyl, isopropyl, chlorine or bromine, provided that the total number of carbon atoms in X does not exceed 12 and that X contains no more than 2 hydrogen atoms. The modified polyester may be crosslinked with an amino resin or a polyisocyanate. The examples describe preparing a polyester from phthalic anhydride and either glycerol or trimethylol propane, optionally with ethylene glycol, modifying the polyester by reaction with caprolactone and cross-linking the modified polyester containing titanium dioxide with hexamethoxymethyl melamine or diphenyl methane di-isocyanate. The final composition may be coated on glass, steel or aluminium.
Patent GB-328715-A (GB)
Title: Improvements in or relating to gaiters, leggings, high-legged boots and like articles
IPC: A41D17/00
Filed: 1929-02-19
Abstract: 328,715. Trasler Bros. & Co., Ltd., and Dommett, F. E. Feb. 19, 1929. Gaiters; leggings and the like. - Gaiters, leggings, high-legged boots, and the like are arranged to be self-fitting with the aid of elastic means at the closure. This may take the form of an elastic lace threaded through eyelets at the upper part of the " fly " opening and combined with ordinary fastenings at the lower part, or the lower part may in addition be provided with fastenings which themselves also provide a selfadjusting means. As, shown in Fig. 1, an elastic lace 1 is passed through a series of eyelets and is anchored at one end 6 and fastened at the other end 7. Buttons and buttonhole fastenings 3, 4 are provided at the lower part. One form of elastic fastening is shown in Fig. 3, in which the buttons 3 are attached to an elastic lace 8 threaded through holes and anchored at-the ends. In another construction, the buttons are provided with elastic shanks.
Patent GB-525363-A (GB)
Title: Improvements in electrically operated variable stroke reciprocators and pumps
IPC: H02K7/02
Filed: 1939-02-20
Abstract: 525,363. Vibratory mechanism. SPENCE, W. L. Feb. 20, 1939, Nos. 5554/39 and 1354/40. [Class 80 (iv)] [Also in Group XXVIII] In mechanism for operating a reciprocating member, such as a pump-plunger, by means of oppositely-rotating bob-weights, an electric motor or a pair of electric motors for driving the bob-weights is mounted directly on the reciprocating element. The pump-plunger R shown in Fig. 1, is connected to a plate B having attached thereto oppositely-rotating electric motors M', M<2>, which are geared to run in synchronism and are provided at each end of the axles with bob-weights W<1>, W<3>. One of the motors may be omitted. Preferably equal bobweights arranged symmetrically are employed so that the pump-plunger receives a straight thrust without side thrust or twisting couple. In some cases, bob-weights of different weights or arranged non-symmetrically are employed so that the pump-plunger receives a twisting-couple for facilitating lubrication or other purposes. In another construction, two motors, each provided with a bob-weight, are arranged in axial alignment. The motor-leads may serve as springs for limiting movement of the reciprocating member. Specifications 212,155 and 221,128, [both in Class 80 (iv)], are referred to.
Patent GB-121885-A (GB)
Title: Improvements relating to Electric Switches.
Inventor: LUCAS HARRY
IPC: H01H13/64
Filed: 1918-03-30
Abstract: 121,885. Lucas, H., and Turner, W. C. March 30, 1918. Controllers.-A switch for controlling two circuits is so arranged so that the first movement of the operating-member closes one of the circuits, further movement in the same direction causes that circuit to be opened, and still further movement closes the second circuit. The return movement of the operating-member restores the parts to their original position without affecting the first circuit. The invention comprises the combination with an operating-member which carries or operates a movable switch directly, of catches which can engage and impart movement to a second movable contact, and a trip device which by acting on the catches liberates the same and permits the second movable contact to return under the action of a spring. The annular contact member f, adapted to engage the fixed contacts a, is actuated directly by the push-piece h and pin i, and a second annular contact member j, adapted to engage the fixed contacts b, is mounted to slide on the pillar d and is pressed upwards by a spring l. Spring catches m, mounted in the member f bear upon the upper end of the member j so that the first action of the push-piece is to press the member j into engagement with the fixed contacts b. Continued movement of the push-piece causes the projections n on the catches to ride over the bevelled end of the fixed collar k and to move outwards, liberating the member j which is then shot upwards by its spring. The final movement of the push-piece causes the engagement of the contact member f with the contacts a. The return movement is effected by a spring c. The operating-member may be actuated by hand, by the foot, or by the solenoid. The invention is stated to be specially applicable for use with an electric starting-motor for internal-combustion engines where electrical means are employed for meshing a pinion with a gear wheel on the engine prior to the admission of a full supply of current to the motor.
Patent GB-1043151-A (GB)
Title: Improvements in or relating to electroplating baths
IPC: C07F9/165
Filed: 1963-02-12
Abstract: An electroplating bath contains as a brightener an acidic sulphur-containing phosphorus compound of the general formula <FORM:1043151/C6-C7/1> where R and R1 are alkyl, cycloalkyl, cycloalkenyl aryl or aralkyl groups which may be substituted by halogen atoms or hydroxy groups, R11 represents alkylene, cycloalkylene, cycloalkenylene, arylene or aralkylene groups which may be substituted by halogen atoms, L represents hydrogen, a metal, ammonium or an organic base, but in these four cases R11 is always absent, or an acid radical or a salt of an acid radical, an amine radical neutralized by an acid, a quaternary ammonium group, or a polyalkylene glycol residue. X, Y, and Z represent -O-,-S-, or -NH-provided that X, Y, Z, and R11 may be omitted from the molecule either individually or in any combination but X and Y do not represent oxygen when Z is sulphur and L is an alkali metal. Examples are given of organic thionophosphoric, thionophosphonic thionophosphinic acids or their thiolo derivatives, of tetrathiophosphoric acids, salts, esters or amides of these acids, and of an organic phosphine sulphide.  The acid radicals specified for L are -COOH,-SO3H, and -PO4H2.  The additives may be incorporated in acid or cyanide baths for electrodepositing copper, brass, bronze, zinc, cadmium, silver and nickel on to ferrous, zinc, copper nickel or alloy bases with if necessary the usual thin cyanide copper interlayer.  Some of the brightener additives also produce levelling effects. Other known brightening, levelling, pore-preventing, water-hardness binding, and wetting agents, inhibitors, and conducting salts may be included in the bath.ALSO:The ammonium salt of O:O-didodecylthiolothionophosphoric acid-o -sulphopropyl ester is obtained when the ammonium salt of O:O-didodecylthiolothionophosphoric acid is dissolved in ethanol and treated dropwise with propanesultone at 65 DEG  C., followed by stirring.  The sodium salt of O:O-diphenylthiolo-thionophosphoric acid-o -sulphopropyl ester is similarly prepared from the corresponding phosphorus acid dissolved in water containing sodium hydroxide by reaction at 60-65 DEG  C. with molten propanesultone added dropwise followed by stirring.  The sodium salt of O:O-di-p-chlorophenyl-thiolothionophosphoric acid - o  - sulphopropyl ester is prepared from the corresponding phosphorus acid by adding propanesultone to a solution of the acid in ethanol containing some water at a temperature of 65 DEG  to 70 DEG  C. with stirring.
Patent GB-953752-A (GB)
Title: A laminated wood veneer
IPC: B27D1/00
Filed: 1961-02-15
Abstract: A coated laminated wood veneer is made by lining one side of the wood veneer with fibrous material impregnated with a thermoplastic adhesive, drying, applying a thermoplastic adhesive material, e.g. polyvinyl chloride, to the other side of the wood veneer, and drying. The fibrous material may be a cotton fabric, or cotton fleece.  A backing of chopped rubber waste, or rubber and textile waste may be applied to the fabric side of the laminate and a polyvinyl foil may be applied to the wood veneer side, with the aid of heat and pressure.  The appearance of the wood veneer may be altered by adding a colouring material to the adhesive applied thereto.
Patent GB-1015833-A (GB)
Title: Improvements in or relating to forming devices and methods
IPC: B21D26/14
Filed: 1964-02-11
Abstract: 1,015,833. Stamping; necking. GENERAL DYNAMICS CORPORATION. Feb. 11, 1964 [Feb. 18, 1963], No. 5705/64. Heading B3Q. A method of forming a workpiece comprises applying at least one current pulse to a coil whereby the coil serves as a source of magnetomotive force, disposing the workpiece in a location spatially removed from the coil and guiding and concentrating the flux produced by the force to form the workpiece. A forming coil assembly comprises conductive means 12 split into sections defining a semi-circular cavity 14, an insulated coil 16 disposed about the tubular mouth of the cavity and connected by switch 30, e.g. an ignitron to a source of high amperage pulses. Conductive split dies 46, 48 of copper or beryllium copper, having counterbores and work apertures 18, 20 are bolted to the inner walls of the cavity of each section. To reduce the flux at the points nearest to the coil the asymmetries in the magnetic field at the annular spaces surrounding the workpiece 10 are reduced to zero by increasing the reluctance of the path of the magnetic field by extending the lower portion of the gap 60 between the dies in length by making the body of the dies eccentric relative to the apertures 18, 20, thereof. The section 24 is slit at 36 so that the section does not act as a shorted turn around the flux. In operation the workpiece 10 is insulated and supported in the section 24, the section 26 clamped thereto and the coil energized, the resulting flux being forced into the cavity 14 through the gap 60 to escape through the annular spaces about the workpiece 10, the increased magnetic pressure being greater than the yield strength of the material and effecting swaging thereof in two places. To swage only one area one of the dies is replaced with one having a larger and longer aperture which spreads the flux over a larger area. Flux leakages between the sections is reduced by insulating material 38 placed therebetween.
Patent GB-1059144-A (GB)
Title: Capacitor-resistor constructions
IPC: H01G13/00
Filed: 1964-02-12
Abstract: 1,059,144. Circuit assemblies; capacitors; resistors. ILLINOIS TOOL WORKS Inc. Feb. 12, 1964 [Feb. 14. 1963], No. 5899/64. Headings HIM, HlR and HIS. In an integral R-C component, Fig. 2, a rolled foil capacitor 32 has resistive material 34 applied to its surface in contact with its terminal leads 36, 38 to provide resistance and capacitance in parallel. Other R-C combinations are provided by modifications. By suitable choice of resistive and dielectric materials, a measure of temperature compensation of impedance is obtained. Capacitor construction. Fig. 3.-Tin foils 42. 44 are staggered and rolled with intermediate plastic or paper dielectric film 46, the latter being over.wrapped several times at 48. Leads may be connected by soldering, but are preferably heated and forced diametrically through the roll of foil and dielectric near each end, so fusing the dielectric and malting good contact with one or the other foil. Resistor construction.--Resistive material 34 is adhesive-taped, evaporated, sputtered or preferably sprayed or applied by dipping on. to the capacitor. Dipping is performed after the capacitor leads are affixed; spraying preferably precedes the connection of leads. Fig. 21 (not shown) depicts a plurality of capacitors 86 adhesive-taped in spiral formation on a rotating and axially-moving drum 92 past a spray-gun 94 fed from a resistive resin supply 95. To prevent the leads cracking the resistive deposit, they may be disposed chordally to avoid the area of the deposit; alternatively, a low resistance plastic deposit may be sprayed on to the ends of the capacitors, prior to the main spraying step (Fig. 22, not shown) through which deposit the leads are passed. Finally a protective coating 40 is applied. Preferred resistive material, for layer 34.- 1050 gm. solvent based epoxy-melamine; 49À18 gm. coarse channel black; 21-07 gm. fine channel black; 216À8 gm. yellow stone talc; 157-5 gm. epoxy resin; 52-5 gm. polyamine. Curing: 150‹ C. for c. 24 hrs. Low resistance material may comprise solid epoxy resin in a solvent, a liquid epoxy resin, an inert filler, a curing agent, carbon, and optionally a plasticizer. Modifications.-A third foil 52d, Fig. 11 (not shown), may be included in the capacitor to co-operate with foils 42d and 44d respectively. A third lead 50d is provided for foil 52d; this lead may be insulated from resistive material 34d at 66, 68. Other R-C network constructions are described in the Specification.
Patent GB-293076-A (GB)
Title: Improvements in or relating to fish-hooks
IPC: A01K83/00
Filed: 1927-03-03
Abstract: 293,076. Readman, H. March 3, 1927. Fish-hooks; line and tackle.-Hooks or swivels are secured to gut, cord or line by use of sleeves of celluloid 9, 10, 11 which are threaded on to the gut &c. and are moved along to the required position, softened by heat or a solvent, compressed around the hook &c. and allowed to harden.
Patent GB-947516-A (GB)
Title: Improvements relating to pit-props
IPC: E21D15/44
Filed: 1960-02-19
Abstract: 947,516. Hydraulic pit props. GUTEHOFFNUNGSHUTTE STERKRADE A.G. Feb. 19, 1960 [Feb. 21, 1959], No. 5994/60. Heading EIE. An hydraulic pit prop 1, 2 incorporates an auxiliary piston 4 pressurized by an accumulator 21 which supplies pressure for retraction purposes and is charged during extension of said prop. The piston 4 is fixed to the base 2 of the prop and slides in a cylinder 6 which is fixed to the member I thereof and communicates with the accumulator through parts 22. The accumulator is made of spring steel, plastic or rubber and is mounted in a steel housing 23. The member 1 is elevated by a pump 7 which feeds liquid from the reservoir 8 through a conduit 9 and valves 10, 11 to a chamber 12, the underside of the member 1 being initially fed with liquid through a valve 14 and then fed with liquid through a valve 16 in the piston 4. A release valve 18 permits escape of liquid from the chambers 12, 15 to the reservoir 8 when the prop is to be released.
Patent GB-414447-A (GB)
Title: Improvements in and relating to gas meters
IPC: G01F3/22
Filed: 1933-02-28
Abstract: 414,447. Gas meters. ALEXANDER, W., and PINCHBECK, Ltd., Adams Place, Georges Road, Holloway, London. Feb. 28, 1933, Nos. 6085 and 13500. [Class 54.] In a dry gas meter the valves 31 slide over gas ports formed by parallel rectangular slots 11, 12, 13, in a rectangular grating 10 which is cast on to a similarly slotted sheet metal valve plate 14 adjacent the gas outlet pipe 21. The gas outlet passage 20 is formed by an inclined tinned plate 15 having vertical side portions 18, the upper horizontal edges being embedded in the cast grating. The grating is formed with inclined conduits 25 leading from the gas ports 13 through the passage 20 into the inner measuring chambers. The ports 11 open directly into the outer measuring chambers. The slide valves 31 may be operated by bellcrank levers 34, 35 which are pivoted on the valve plate and are connected by links 36 to a crank on a vertical crank-rod 29. The crank-rod 29 is journalled on in a lug 30 on the grating 10 and is rotated by the flag-rods 27. The valves may be cast with two apertured posts to engage a fixed guide rod or, as shown in Fig. 2, each valve may be formed with a socket 40 carrying a rod 41 engaging an apertured post 42 in the other valve.
Patent GB-108444-A (GB)
Title: Apparatus to Facilitate the Rapid Casting of the Centre-pieces of Grenades.
Inventor: GIBBONS ANTHONY BRIDGEMAN
IPC: B22D5/02
Filed: 1917-05-01
Abstract: 108,444. Gibbons, A. B. May 1, 1917. Projectiles.-A machine for casting a number of centre-pieces of hand-grenades, each of which carries the detonator and has a separately-made time-fuse carrying a copper tube x, Fig. 5, incorporated therewith, comprises an annular table A mounted to rotate freely in an horizontal plane on ball-bearing mounted rollers and carrying a number of equally spaced readily inverted moulds. A typemetal-melting furnace E to deliver molten metal to the moulds and a furnace for heating the cores are arranged within the table. Two-part moulds C<1>, C<2> are mounted in brackets c<0> and the parts are secured by a single clamp C which is provided at one end with a screw-threaded pivot c, Figs. 4 and 5, and the other end engages a dug c<1> which projects from the part C'. The parts are clamped together by means of a setscrew c<2>. Each mould is provided with a looselyfitting T-handle. The core D is provided with a peg d on which is placed the tube x after the core is heated in the furnace H. In positions 6 - - 12 moulds are turned through a right-angle to receive molten metal from the furnace E; in positions 13 - - 19 the moulds are inverted with the larger ends of the metal cores D directed downwards; in position 18 a stamp F is brought into operation to force the metal core D out of the casting and mould through an aperture a<0> into a circular trough G along which it passes to the furnace H; in position 20, the mould is turned through a rightangle and the casting removed; and in position 21 the casting is examined and if satisfactory an automatically interposed stop is released to allow the table to rotate. The cored stem of the casting carries the detonator and spring by which it is operated to ignite a time fuse in the tube x. A shield e<0> is provided to protect the operator of the furnace E from heat.