baber/WOPTO huggingface dataset:
Patent GB-183908-A (GB)
Title: Process for the manufacture of cellulose compounds
IPC: C08B1/00
Filed: 1921-04-28
Abstract: Cellulose derivatives, such as acetates, ethers, and phosphoric acid and sulphur compounds, are prepared by subjecting cellulose to high speed mechanical disintegration, and treating the colloidal and highly dispersed cellulose so obtained with suitable chemical reagents; the disintegration is essentially effected in a grinding-apparatus such as the colloid mill described in Specification 179,124, while employing a grinding speed of 1.000 metres per min. or higher.  In examples, cotton is dispersed in water in the colloid mill until the particles have a diameter of 0.8 m , and then combined with o-phosphoric acid at a temperature of 30-50 DEG  C. and preferably alter the addition of a trace of sulphuric acid; alternatively, the phosphoric acid may be allowed to react during the dispersion of the cellulose; dispersed cellulose is heated with acetic anhydride and acetic acid in the presence of sodium acetate as the accelerator, and the acetic acid may be produced in the nascent state by means of sodium acetate and sulphuric acid; dispersed cellulose is heated with sulphur, preferably in the presence of caustic or carbonated alkali and at a temperature not exceeding 150 DEG  C.; dispersed cellulose is mixed with methyl alcohol, and hydrochloric acid gas introduced-a methyl ether of cellulose is formed.ALSO:Solutions of cellulose derivatives, such as acetates, ethers, and phosphoric acid and sulphur compounds, are prepared by subjecting cellulose to high speed mechanical disintegration, and treating the colloidal and highly dispersed cellulose so obtained with suitable chemical reagents; the disintegration is essentially effected in a grinding-apparatus such as the colloid mill described in Specification 179,124, while employing a grinding speed of 1000 metres per minute or higher.  In examples, cotton is dispersed in water in the colloid mill until the particles have a diameter of 0.8 m , and then combined with o-phosphoric acid at a temperature of 30-50 DEG  C., and preferably after the addition of a trace of sulphuric acid.  Alternatively, the phosphoric acid may be allowed to react during the dispersion of the cellulose; dispersed cellulose is heated with acetic anhydride and acetic acid in the presence of sodium acetate as the accelerator, and the acetic acid may be produced in the nascent state by means of sodium acetate and sulphuric acid; dispersed cellulose is heated with sulphur, preferably in the presence of caustic or carbonated alkali and at a temperature not exceeding 150 DEG  C.; dispersed cellulose is mixed with methyl alcohol, and hydrochloric acid gas introduced-a methyl ether of cellulose is formed.
Patent GB-418803-A (GB)
Title: Improvements in or relating to wire meshwork surfaces for mattresses
IPC: A47C23/155
Filed: 1934-04-23
Abstract: 418,803. Spring mattresses. KLUTE, E., 13, Flurstrasse, Hagen, Germany. April 23, 1934, No. 12195. [Class 52 (iv).] A mattress with upwardly arched end bars b has a surface built up of longitudinal tension springs c, preferably flattened helices, which, in the body of the mattress, are interrupted by transversely arranged undulating wire springs e, upwardly arched, and preferably concave in end view.
Patent GB-1187171-A (GB)
Title: Improvements in Fluid Impingement Starting Means for Gas Turbine Engines.
IPC: F02C7/27
Filed: 1968-03-13
Abstract: 1,187,171. Gas turbine engines - starting. GENERAL ELECTRIC CO. March 13, 1968 [April 3, 1967], No. 12215/68. Heading F1G. The invention relates to a fluid impingement type starting system for a gas turbine engine, the starting system comprising a nozzle ring which is located downstream of a ring of turbine stator blades and upstream of a ring of turbine rotor blades, there being nozzle outlets in the nozzle ring through which starting fluid is directed on to the turbine rotor blades. The engine shown comprises a two stage turbine 12 comprising second stage nozzle guide vanes 18 and second stage rotor blades 13 which are mounted on the rotor 14. A starter nozzle ring 22 is located between the stator blade assembly 18 and the rotor blade assembly, 13, the ring 22 being of channel section and being formed in its base portion 24 with nozzle outlets 21 through which starting fluid may be discharged on to the rotor blades 13 to start the engine. The turbine stator structure comprises parts 2, 3, 4 secured together, the part 3 being formed with a starting fluid inlet duct 15 also with a duct part 17 through which starting fluid can pass to the nozzle ring member 22. The ring member 22 is supported in a "floating" manner as follows: the upstream flange 32 of the member bears against a radially inwardly projecting flange 27 of the stator member 3, while the downstream flange 33 of the ring member bears against a flange of the ring member 28 which is itself secured between the stator members 3, 4, the flange of the ring member 28 carrying projecting pins 29 which engage within radial slots 30 formed in the downstream flange 33 of the ring member 22 is located with provision for thermal radial expansion. The stator members 2, 3, 4 are onepiece, undivided members which allow the starter ring member to be assembled in an axial manner.
Patent GB-891886-A (GB)
Title: Candle holders
IPC: F21V35/00
Filed: 1958-04-17
Abstract: 891,886. Candle holders. YOUNG, S. G. July 11, 1958 [April 17, 1958; April 25, 1958], Nos. 12216/58 and 13274/58. Drawings to Specification. Class 75(1) A plastic candle holder has an integral spike for insertion into a cake and disposed so that the candle is supported beyond the periphery of the cake. The spike may extend at right angles to the axis of the holder so that it can be inserted in the side of the cake or it may be other than straight so that it can be inserted in the top of the cake. The spike may be of strip form which is either flat or corrugated or provided with ribs. The first Provisional Specification states that the holder and spike may be made of metal.
Patent GB-415211-A (GB)
Title: An improved package or box adapted more especially for containing comestibles
IPC: B65D5/42
Filed: 1933-04-28
Abstract: 415,211. Moistureproof boxes for comestibles. FULLER'S, Ltd., 45, Great Church Lane, Hammersmith, London, and BACKES, J. J. V., 29, Penwerris Avenue, Osterley, Middlesex. April 28, 1933, No. 12388. [Class 18.] A moistureproof and airtight package for foodstuffs comprises a box of cardboard, strawboard or the like, proofed and sealed at all joints by impregnation with a wax compound, and having a wall b apertured so as to leave a continuous margin, which aperture, after packing, is closed and sealed by a sheet of moistureproof transparent material g overlapping the continuous margin and affixed thereto by cement or by the wax compound. The package may be protected by an outer shell h or one or more may be enclosed in an outer box having a removable lid.
Patent GB-733679-A (GB)
Title: Improvements in or relating to grain harvesting machines
IPC: A01D57/10
Filed: 1953-05-05
Abstract: 733,679. Reaping-machines. PHILLIPS, C. M. May 5, 1953, No. 12498/53. Class 6 (3). An apparatus for association with a reaping- machine of the kind having a cutter-bar 10 backed by a platform or transverse conveyer 11 comprises a manifold 15 supported on brackets 17 so as to extend forwardly of the cutter-bar and above it, the manifold being rotatably adjustable on the brackets and being provided with air-ducts 13, along its length, extending downwardly and terminating in rearwardlydirected, laterally-extended nozzles 12 which blow a ribbon of air over the cutter-bar. The rotational adjustment comprises an upstanding bar 20 on the manifold having an aperture to mate selectively with apertures in a bar 18 pivoted to one bracket 17. The ducts 13 each have a forwardly-extending fin-like divider 25.
Patent GB-161455-A (GB)
Title: Improvements in combination folding beds, chairs or the like
IPC: A47C17/16
Filed: 1920-05-06
Abstract: 161,455. Farah, K. May 6, 1920. Bedsteads convertible into seats.-A folding bedstead convertible into a reclining chair or the like with adjustable leg and back rests, comprises a mattress with two end sections hinged to a central section, the side-bars b of the central section having downwardly-inclined extensions to which the legs d are pivoted at o. The head and foot sections c, a of the mattress are held at the desired inclination by ratchets e engaging members n carried by the central sections b. Folding rests m are provided at each end of the mattress frame.
Patent GB-402668-A (GB)
Title: Improvements in and relating to supply fillings for geysers and like heaters
IPC: F24H9/20
Filed: 1933-05-02
Abstract: 402,668. Supply fittings for water heaters. GAWAPATENT-VERWALTUNGS AKT.-GES., Schaffhausen, Switzerland.- (Assignees of Frister Akt.-Ges., R.; Obersch÷neweide, Berlin.) May 2, 1933, No. 12761. Convention date, May 2, 1932. [Class 135.] A supply fitting for a water heater supplying several draw-off taps comprises a fuel supply valve a opened by the flow of water to the heater and liquid-pressure regulator in the water supply conduit, adapted to cut-off completely the supply of liquid to the heater upon a certain pressure below the supply pressure being exceeded. When a drawoff tap on the hot water conduit is opened, pressure is lowered below the spring pressed regulator diaphragm f allowing the valve d to open and permit water to pass from the inlet a to the heater, through a pipe p. On its way to the heater the water passes through a restriction, the pressures on either of which are led to the chambers on either side of a diaphragm n coupled to the fuel valve s. When the flow of water ceases the two pressures are equalized and the fuel valve closed by a spring. The two actuating diaphragms are arranged co-axially and the space below the diaphragm f is fitted with a spring loaded relief valve k.
Patent GB-495042-A (GB)
Title: Improvements in electric testing apparatus for testing electric lamps and/or other electrical devices
IPC: H01J9/42
Filed: 1937-05-05
Abstract: 495,042. Electric tests ; mechanical switches without quick action. MARKS & SPENCER, Ltd., and BUTT, C. W. J. CLEGG-. May 5, 1937, No. 12869. [Class 37] [Also in Group XXXVII] Apparatus for testing devices such as electric irons and fires for continuity, and for visually comparing lamps for brilliance, comprises an auto-transformer 10 fed from mains 12, 13 through a fuse 23 and tapping 15, 16, corresponding to the mains voltage, tappings 24 on the output side of the transformer being connected to a rotary selector switch 11 whereby the appropriate voltage may be connected to lamp sockets 29 and socket connections 32, 33, 34 for other connectors. According to the invention the selector switch 11 and a make- and-break switch 22 in the transformer circuit are so located as to be operated simultaneously by the same hand of the operator. Lamps of the same voltage but different wattage are compared visually for brilliance by inserting them in the sockets 29. The sockets 32, 33, 34 are for the insertion of plugs connected to irons &c. in which continuity is indicated by the glowing of a lamp 39 in series therewith. Further sockets 40, 41, 42 and a switch 43 are for testing devices directly from the mains supply. Switch construction. The switch 11 comprises a rotary shaft 47, Fig. 2, mounted in a panel 54 and carrying a contact arm 26 movable over fixed contact studs 25 by means of a knob 48 having a radial pointer 50 moving over a voltage scale on the panel The switch 22 comprises two electrically-connected studs 56, 58 fixed in the panel 54 and a contact ring 55 rigid with an insulating ring 52 slidably carried by the spindle 47. Springs 53 normally lift the contact ring out of engagement with the studs. In operation the selector switch is rotated by the knob 48 against the action of a spring 51 until the correct voltage is indicated by pointer 50 and the ring 52 is then depressed to close the contacts 55, 56.
Patent GB-399250-A (GB)
Title: Improvements in or relating to means for edging garden paths and the like
IPC: A01G9/28
Filed: 1932-05-04
Abstract: 399,250. Garden edging. FIELD, A., Edgeley Bank, Bosworth Road, New Barnet Hertfordshire. May 4, 1932, No. 12874 [Class 6 (ii).] An edging for a garden path or the like is constructed from strips of sheet metal formed at their ends to engage by sliding horizontally one over another so as to form a continuous edging. The strips are formed of scrap sheet iron and the upper edge is bent to form a tubular beading b and the lower edge is doubled up at c. One. end of the tubular edge b is expanded at d and the other end is contracted at e to fit in an expanded portion. The lower edge c is slightly opened below the contracted edge e and the opposite lower edge g is cut away. Holes h may be provided for drainage purposes. The strips may be coated with a waterproof bitumen paint.
Patent GB-1351521-A (GB)
Title: Apparatus for filling vessels such as bottles
IPC: B67C3/00
Filed: 1971-05-04
Abstract: 1351521 Vacuum filling machines H LARRIEU 4 May 1971 [4 May 1970] 12877/71 Heading B8T A filling machine for bottles or other vessels comprises a filler head 15, a filler tube 16, and an air tube 17 connected to a vacuum source (not shown). The head 15 is fitted to a tubular body 5, which also carries a tube 6 extending into a vessel 7 having a constant level of liquid 8. The tubular body 5 and hence the head 15, is raised and lowered by means of a cam 3. In operation a bottle 29 to be filled is placed on a stationary plate P, the cam 3 is rotated until a locating ring 30 surrounds the neck 29a of the bottle, and a valve ring 26 seals off the rim of the neck. The bottle is then evacuated, as well as the body 5 and tube 6, and this action raises a ball 10 in the tube 6 and allows liquid to pass into the bottle until it reaches the tip 20. When liquid begins flowing in the tube 17, the pressure of liquid in tube 16 acts on the valve 22 and breaks the vacuum. The liquid remaining in the tube 16 is drawn off through the tube 17, giving a constant liquid level. If desired, the bottle can be filled with a neutral gas prior to filling with liquid by connecting the air tube 17 both to the vacuum source and a reservoir containing the neutral gas. To clean the apparatus, a bottle is positioned as before, the assembly 11, 12, 13 is depressed so that the pin 14 displaces the ball 10 laterally, and rinsing fluid is introduced through the air tube 17 and circulated through the apparatus in the opposite direction to the filling liquid.
Patent GB-129841-A (GB)
Title: Improvements in and connected with Transporting-magnets.
IPC: H01F7/20
Filed: 1918-08-09
Abstract: 129,841. West & Co., A., and Pickett, F. N. Aug. 9, 1918. Drawings to Specification. Electro magnets. - Relates to magnets for moving sheet-metal plates, and consists in increasing the friction between the magnet and the plate, either by covering the pole faces with a frictional material, such as a woven fabric of brass wire and asbestos, or by forming the faces with corrugations, teeth, &c. To prevent the magnetic flux of the magnet from penetrating into the rollers on which the sheets are carried, the magnet poles are separated by only a small airgap ; in a circular magnet, the poles are concentric annular rings separated by a narrow annular space, and woven material is secured to the face of the outer pole by means of a clamping-ring.
Patent GB-131005-A (GB)
Title: Improvements in and connected with Electric Starting and Ignition of Aeroplane Engines and the like.
IPC: A23B4/044
Filed: 1917-09-10
Abstract: 131,005. Leyland Motors, Ltd., and Thomas, J. G. P. Sept. 10, 1917. Starting; turning-gear.-In an electric starting system, the dynamo-electric machine which serves as starting-motor and as a generator for batterycharging and ignition may be hand-driven at high speed as an ignition generator when starting by hand. In the form shown, the armature of the generator 1 has a low-tension or motor winding 2 connected to the commutator 4, and a hightension or generator winding 3 connected to the commutator 5. The field may have a series winding of few turns and a shunt winding 29. When the machine 1 runs as a motor, it turns the crank-shaft 17 through reduction gearing 7, 8, 10, 11, a ratchet clutch 12, 13, and gearing 15, 16. When the engine starts, the clutch 12, 13 is automatically disengaged and the machine 1 is driven in the same direction as a generator through gearing 28, 27, 26, 25, 23 and a freewheel or centrifugal clutch 24. For starting by hand, the threaded end 21 of the starting-handle shaft 19 is screwed into the clutch member 12 and turns the engine by means of the clutch 13, shaft 14, and gearing 15, 16. The clutch 12, 13 is then disengaged, and the starting-handle drives the machine 1 at high speed through the gearing 11, 10, 8, 7, the brushes of the high-tension commutator 5 being connected to the primary of a sparking-coil. When the engine starts, the connexion 21 is automatically unscrewed to free the starting-handle, and the machine is driven through the clutch 24. The gear-wheel 10 may have an extension which drives a pump for priming or for supplying petrol to the carburettor before turning the engine for starting. A single switch controlling the various circuits is provided with a cam for retarding the ignition at starting, and may have a cam for moving the clutch member 13 into engagement with the member 12. The switch is of the tramcar type and has seven positions making connexions as follows : (1) from the battery to the commutator 4 for motoring, and to an ignition coil; (2) all connexions broken, enabling the engine to be turned by hand; (3) from the commutator 5 to the ignition coil, the generator being turned by hand ; (4) from the commutator 4 to the ignition coil; (5) as in (4), the battery being connected to the commutator 5; (6) and (7) from one or other pole of the battery to the ignition coil, the other pole being connected to the commutator 5. The trembler of the ignition coil is cut out except in positions (1) and
Patent GB-1422728-A (GB)
Title: Copolyester compositions
IPC: C08G63/672
Filed: 1973-03-19
Abstract: 1422728 Copolyester-polyepoxide compositions E I DU PONT DE NEMOURS & CO 19 March 1973 [20 March 1972] 13023/73 Headings C3R and C3B A copolyester composition comprises (a) a multiplicity of units -OGO-C:O-R-C:O- and -ODO-C:OR-C:O- joined head to tail where G is a divalent residue from a polyalkylene oxide HO-G-OH having a molecular weight of 400 to 6000 and a C:O ratio of 2À0 to 4À0 : 1, R is a divalent residue from a dicarboxylic acid HOOC-R-COOH having a molecular weight up to 300 and D is a divalent residue from a diol HO-D-OH having a molecular weight up to 250 and (b) a polyepoxide having a functionality of at least 2 and (c) an epoxy curing agent which is either an aromatic or aliphatic polyamine or a cyclic anhydride of a polycarboxylic acid. The polyepoxide (b) may have an epoxide equivalent of from 50 to 2000 and is represented by the formula in which n has a value of 2 to 15 and R<SP>1</SP>, R<SP>111</SP> and R<SP>1111</SP> are each hydrogen or an alkyl group and R<SP>11</SP> is a polyvalent radical which may contain carbocyclic nuclei which may be substituted with Cl or Br, or R<SP>1</SP> and R<SP>11</SP> may be joined to form a carbocyclic ring. The polyepoxide may be a polyglycidyl compound, e.g. a diglycidyl ether of bisphenol A or a polyglycidyl ether of a phenol-formaldehyde novolac. The curing agent (c) may be a cyclic anhydride of a polycarbocyclic acid which has a structural unit wherein Z is a bivalent radical which forms a 5 or 6 membered ring in combination with the two carbonyl carbon atoms and the oxygen atom of the anhydride.
Patent GB-528271-A (GB)
Title: Improvements in or relating to friction feeders
IPC: B65H3/52
Filed: 1939-05-02
Abstract: 528,271. Feeding sheets. DAVIDSON MANUFACTURING CORPORATION. May 2,1939, No. 13095. Convention date, May 2, 1938. [Class 100 (i)] Sheets are fed to a printing or like machine from a fanned out pile 25 arranged in a magazine 14 with adjustable sides 23, 24 by means of an intermittently rotated friction roller 26 of soft rubber arranged to engage the pile at the centre and to separate the top sheets successively in coaction with a movable retard member such as a hard rubber roller 27 which acts to keep back the sheets below the top one. The roller 26 is carried by a shaft 30 which is rotated intermittently by a rack 13 reciprocated from the printing-machine to which the sheets are fed and a gear wheel 28 which drives the shaft 30 by a free-wheel clutch 29. The retard roller is fixed to a shaft 34 mounted in eccentric bearings 35, and the shaft 34 is normally set by means of an adjustable stop which engages a spring-pressed arm 38 on it so as to separate the retard member from the roller 26 by a distance slightly less than the thickness of a sheet. Should two sheets a, b, Fig. 6, pass between the members 26, 27 the retard member is first moved to the left but then tends to return under spring action and so carries back the second sheet with it. The roller 26 feeds the separated sheet into the bite of feed rollers 54, 56 constantly driven. The upper rollers are mounted in angularly adjustable spring-pressed arms 58, and the lower rollers are rubber covered wooden rollers mounted on the shaft of a tape conveyer 17 which feeds the sheets to front stops 18. The tapes 52 of the conveyer 17 are inclined slightly towards an adjustable side guide 53 which controls the lateral position of the sheets. The rotation of the shaft 26 is controlled by a spring brake which prevents it from'rotating as the tail end of a sheet leaves the rollers 26, 27.
Patent GB-761473-A (GB)
Title: Improvements in the manufacture of concrete pipes having prestressed reinforcement
Inventor: HOMEWOOD LESLIE SPENCER GRAHAM
IPC: B28B21/62
Filed: 1954-05-05
Abstract: 761,473. Concrete pipes. STANTON IRONWORKS CO., Ltd. May 5, 1955 [May 5, 1954], No. 13135/54. Class 99(2) [Also in Group X] A concrete tube, ultimately forming the inner part or core of a concrete pipe, is cast and permitted to harden, and is then wound with wire under tension. Hydraulic pressure is applied to the inside of the core to tense the wire further before the application of the outer coating of concrete, the pressure fluid being forced into a clearance between a mandrel and the bore of the core. As shown, the mandrel 8, provided with reinforcing webs 10, has, at one end, a welded collar 12 carrying a ring 18 which, with sealing rings 22, 24, positions one end of the core 2. The other end is sealed by a two-part ring 26, 28, the part 28 being secured by bolts 38 to nuts 16 held in cages 14 welded to the inner surface of the mandrel 8. The ring 26 is bolted at 30 to the ring 28. Gaskets 34, 32 36 seal the end of the clearance 41. Pressure fluid is admitted at 60 and air is vented at 62. Inflatable or cupped gaskets may be used. In a modification, the concrete core is enclosed in a thin metal sheath on which the wire is wound. The sheath has a flared part welded thereto which lines the socket end of the pipe. The seal at this end of the pipe is made by a gasket bearing against the inside of the flare. If desired, a tube of flexible material may be fitted around the mandrel, the fluid being forced between the mandrel and the material. The clearance space may be filled with liquid, without pressure, before winding, so that compression of the concrete core by the winding operation is resisted. After winding, the pressure is raised and the coating layer of concrete is applied.