baber/WOPTO huggingface dataset:
Patent GB-806874-A (GB)
Title: Protective means for use in an electric system supplied by a motor driven alternating current generator
Inventor: HANKINS WILLIAM CORBETT
IPC: H02H3/20
Filed: 1955-09-26
Abstract: 806,874. Protective cut-out arrangements. ROTAX Ltd. Dec. 17, 1956 [Sept. 26, 1955], No. 27330/55. Class 38 (5). [Also in Group XXXIX] An over-voltage protective arrangement for a motor-driven generator i comprises a transductor a having control windings m connected in series with neon or other gas discharge tubes n across the output terminals of rectifiers o, the input terminals of the rectifiers being connected across the ends of resistors p which are connected in series with saturable inductances r for energization by the output voltage of the generator i. The transductor also has parallel windings b which are interconnected through half-wave rectifiers c and when supplied with current from a transformer k normally permit the energization of a relay through a rectifier d. When the voltage generated exceeds a predetermined amount, the tubes n strike and the control windings m are energized with the result that the current in the winding of the relay e is reduced. The relay e opens its contacts to deenergize the closing winding f of a contactor g which opens its contacts to stop the driving motor h. A condenser t delays the release of the relay e to prevent undesired interruption due to transient over-voltages. The arrangement may be made responsive to generator frequency by providing a further control winding in circuit with a further discharge tube and an appropriate frequency-responsive means.
Patent GB-691356-A (GB)
Title: Improvements in or relating to cartons and blanks therefor
Inventor: FOYLE JOHN ROLAND
IPC: B65D5/24
Filed: 1949-10-25
Abstract: 691,356. Cartons. BOXFOLDIA, Ltd., and FOYLE, J. R. Oct. 25, 1950 [Oct. 25, 1949], No. 27337/49. Class 18 In a carton, or blank therefor, comprising body portion and lid, there is in each panel 15 which is folded about a line 13 to form the inner thickness of a double end wall, a cut 18 defining the free edge of a flap 19 which can be folded about a line 20, aligned or substantially aligned with the line 13, to extend horizontally when the carton is erected, and support the lid 24. The folded over end walls enclose wings 23; but the slit 18 may extend the complete length of the panel 15, Fig. 4, the wings being replaced by gussets 28, in each of which are fold lines 32, 35, so that the gussets may be folded as shown and the panel 15 folded about the lines 20, 32. Tongues 16 on the panels 15 engage slits 17. A flap 26 on the lid may engage the inner face of the front wall 21 of the carton, or may lie outside that wall and have a tongue engaging a slit in the wall. Specification 355,560 is referred to.
Patent GB-1071706-A (GB)
Title: A method of making paper which dissolves or rapidly disintegrates in water
IPC: D21H23/42
Filed: 1965-06-28
Abstract: Paper which will dissolve or disintegrate rapidly in water is made by (a) heating a paper web comprising fibrous cellulose-glycolic acid at a temperature and for a time such that it will no dissolve or disintegrate during the following step, (b) impregnating the web with an aqueous alkali so that it takes up alkali in amount at least equivalent to the cellulose-glycolic acid, and (c) heating the impregnated web to dry it.  The starting material may comprise cellulose-glycolic acid alone, or mixtures with other fibres, such as wood-pulp, cotton linters, nylon, carbon fibres, asbestos or glass fibres.  In the examples: (1) pulp was beaten, rosin soap added, pH adjusted with aluminium sulphate and cottony cellulose-glycolic acid added, the pulp was formed into a web and treated as above, it could then be written, printed or typed upon, but dispersed readily in water and (2) flocculent cellulose-glycolic acid was mixed with dissolving pulp, beaten, formed into sanitary paper and treated as above.  It is said to be known to treat paper comprising cellulose-glycolic acid with a solution of sodium hydroxide or carbonate in alcohol or acetone.
Patent GB-1046314-A (GB)
Title: Improvements in or relating to electrical cables
IPC: H01B7/288
Filed: 1965-06-29
Abstract: 1,046,314. Cables. SIEMENS & HALSKE A.G. June 29, 1965 [July 29, 1964; April 26, 1965], No. 27395/65. Heading H1A. Moisture pentrating a sheathed cable is restricted from spreading axially by the incorporation at intervals within the sheath of a material which swells on contact with water. The intervals may be of 30 metres or the material may advantageously be introduced just before and after cable couplings. The material may be in the form of threads, cords or foils stranded with the synthetic resin insulated wires during manufacture of the cable, but preferably is in powder or gel form. Suitable materials include bentonite, bentone, crosslinked dextrans, cross-linked dextrins, starch, cellulose derivatives and alginates, injected into the core in suspension in an alcohol and/or water which is subsequently removed. Alternatively the material may be introduced as a paste with petroleum jelly or like silicone base. The location of the material may be marked with a radioactive or ferromagnetic substance.
Patent GB-1416000-A (GB)
Title: Belt conveyor
IPC: B65G21/00
Filed: 1974-06-20
Abstract: 1416000 Endless belt conveyers T R L HOLMQVIST and A G GUSTAFSON 20 June 1974 [9 July 1973] 27412/74 Heading B8A The driving wheel 4 of a conveyer belt 3 is carried by a yoke 11 having a shank portion which fits into a tubular shaped main frame member 7. The return wheel 6 is similarly mounted in the member 7. As shown, the tubular member 7 is of square cross-section. The member 7 also carries belt supporting and guiding rollers 5. Tension of the belt and dismantling of the latter may be effected by screw means 13. Two conveyers as above described, are connected by laterally disposed frame members (35), (36) (Fig. 2, not shown), to form a single unit having two laterally spaced belts. Plates 39 (Fig. 7) carrying mats for formation into fibreboard sheets, are fed successively from the conveyer on to respective floors of an elevator 38 by the action of a ram 28. The latter embodies switches 29, 30, at respective ends of its travel, thereby controlling mechanism (Fig. 7) for activating the ram, and the loading of a pneumatic damping device 31 for the sheets. A system embodying a series of the conveyers is described (Fig. 8, not shown). Each downstream conveyer has its level altered relative to the upstream conveyer, in each case, so as to enable the sheets to be transferred from conveyer to conveyer.
Patent GB-872726-A (GB)
Title: Apparatus for electric arc cutting
Inventor: CRESSWELL ROBERT ARTHUR
IPC: B23K9/013
Filed: 1956-09-07
Abstract: 872,726. Arc torches. BRITISH OXYGEN CO. Ltd. Aug. 28, 1957 [Sept. 7, 1956], No. 27497/56. Class 39(3). [Also in Group XXII] An electric arc cutting device comprises a housing 8 having a shielding nozzle 1 with a replaceable insert 5 defining a passage 6 about a non-consumable electrode 7 supported within the housing with its tip extending into or through the nozzle, connections 12 for supplying a shielding gas to flow around the electrode and through the passage, and a secondary electrode 5 for subjecting the shielding gas to ionisation. The electrode 7 which may be of tungsten is carried by a support 11 made of an oxide or oxides of aluminium, zirconium, silicon or magnesium and having passage 12 for the shielding gas which may be argon, nitrogen or hydrogen. The nozzle 1 has a cooling chamber 2 and may be made of carbon, carborundum, metal, a ceramic material or of ceramic and metal; it has a replaceable insert 5 of electrographite which constitutes the secondary electrode. The electrode 7 and workpiece 14, Fig. 2, are connected to a direct or alternating current source 13 and the secondary electrode 5 is connected to a high frequency current source 15 such as a spark generator through a conductor 4 which is also a coolant discharge pipe. This high frequency source may be switched off when the cutting arc has been established.
Patent GB-825649-A (GB)
Title: Improvements in or relating to a method of and a machine for grinding spur gears andhelical gears
IPC: B23F23/12
Filed: 1956-09-10
Abstract: 825,649. Gear-grinding. REISHAUER-WERKZEUGE A.G. Sept. 10, 1956 [May 2, 1956], No. 27602/56. Class 83 (3). [Also in Groups XXIII and XXXVII] A hobbing machine for grinding spur and helical gears comprises automatic control means which in response to load angle variations occurring on the rotor of a synchronous motor driving the hob 9, impart to a synchronous motor 12 driving the work 10 corresponding load angle variations. The work 10 is carried on a slide 4 reciprocated by a piston 5 on a cradle 3 adjustable angularly by worm-gearing 7. The work is rotated by a synchronous motor 12 through differential gearing 13, 18 and gears 20, 23, 24 25, 27 and 29. The differential gearing is locked by a disc 48 and a pin 30 when plain spur-gears are ground, the disc 48 being replaced by a gear 49 when helical gears are ground. The gear 49 rotates gears 52, 54, the latter meshing with a rack 55 on the slide 4. The gear 29 rotates a gear 33 driving a pump 32 which passes oil through a line 36 to a regulator valve 37 at a pressure indicated by a gauge 39. The valve co-operates with a rod 41 which is engaged by a spring 56, compressed to a variable extent by a pin 63 running on a template 40 attached to the slide 4. During grinding, as the single-, or multi-start hob moves upwards into full-mesh with the gear, there is a force tending to retard the synchronous motor driving the hob up to an angle #α. Upon disengagement of the hob, the angle #α gradually decreases to zero. To compensate for this retardation and consequent error on the teeth of the gear, a corresponding retardation is applied to the synchronous motor driving the work, by moving the valve-rod 41 by the template 40, to increase the pressure in the line 36 and consequently the power taken by the pump 32. In a modification, the template 40 is omitted, and the power taken by the pump 32 set at a fixed amount by locking the pin 63. In one of the phase-supply lines to the hob motor 2, Fig. 10, a wattmeter 80 is inserted which is connected to a regulator 81, which produces a voltage reduction in the supply of the work motor 12 when there is a load increase on the motor 2. Alternatively, the variations measured by the wattmeter 80 may be used to displace the core of an induction coil, which, through a hydraulic copying device, controls the movements of a valve, which in turn controls the pump 32. In a further modification, the hob-motor itself is controlled to prevent any load-angle variation. Finally, the hob may be traversed instead of the work. The hob may be fed in when the work is in its central position, and may cut on upward and downward strokes.
Patent GB-1221096-A (GB)
Title: Apparatus and method for positioning an elongated member
IPC: F16C32/06
Filed: 1968-06-11
Abstract: 1,221,096. Fluid bearings. CORNING GLASS WORKS. 11 June, 1968 [13 June, 1967], No. 27736/68. Heading F2A. An elongate member 22 having a flat surface is positioned by a pair of gas bearings .10 having coplanar faces 14, the spacing between the flat surface of the member and the bearing faces being such as to create, on movement of the elongate member away from its equilibrium position and away from the gas bearings, a Bernoulli effect region whereby the elongate member is returned to the equilibrium position. Air is supplied to the bearings via ducts 16 and 18 and is regulated by a valve 20. In place of the valve a fluid amplifier (Fig. 3, not shown) may be used. Air thickness gauging nozzles 24, 26 may be provided for monitoring the ribbon thickness.
Patent GB-1412519-A (GB)
Title: Copolymers and production of the same
IPC: C08F4/619
Filed: 1973-06-11
Abstract: 1412519 Elastomeric tetrapolymers SNAMPROGETTI SpA 11 June 1973 [21 June 1972] 27779/73 Heading C3P A vulcanizable copolymer comprises units of (a) ethylene, (b) an α-mono-olefin containing at least 3 carbon atoms, (c) a compound containing at least two carbon-carbon double bonds, no two such double bonds being conjugated, and (d) a polycyclic polyene containing one non-aromatic hydrocarbon ring having an endomethylene bridge and preferably a double bond, and a second non-aromatic hydrocarbon ring othocondensed with the first which contains a conjugated diene system including the carbon atoms common to the two rings. The copolymer may be prepared using a catalyst comprising a compound of a transition metal of groups IV-VIII and a reducing aluminium compound, monomers (c) and (d) preferably being added in portions during the course of the reaction to maintain constant concentrations. It may be vulcanized by conventional methods or covulcanized with a diene polymer or copolymer elastomer. In examples (b) is propylene, (c) is endo and/or exo dicyclopentadiene, hexa - 1,4 - diene, 4 - vinylcyclohexene, cycloocta - 1,5 - diene, or mixed dimerization and addition products of butadiene and cyclopentadiene, (d) is dehydrodicyclopentadiene or its 1- or 2-methyl derivative (various other suitable monomers being mentioned), and the catalyst comprises Et 2 AlCl and vanadium trisacetylacetonate; a small amount of pyridine is also added.
Patent GB-637298-A (GB)
Title: Improvements in or relating to the fixing of wall slabs to supporting members or to one another
IPC: E04B2/58
Filed: 1947-08-19
Abstract: 637,298. Walls slabs. STEAD, R. G. Aug. 19, 1947, No. 27780/46. [Classes 20 (iv) and 87 (i)] Wall slabs are fixed to one another or to a supporting member by projecting headed lugs which are inserted and slid in keyhole-shaped slots, each slot having a wedge-surface, or being positioned to create a wedging action, on the lug throughout the full length of the narrow portion of the slot so that the slabs are drawn into close contact with one another or the supporting member. As shown in Fig. 2, a double wall comprises concrete slabs 1 each having two lugs 2 near each side end hooked around reinforcing rods 7 and projecting into slots 3 in flanges of steel channel uprights 4. Wedge-shaped projections 5 are provided for each slot. In another form (Fig. 3), the lugs are bent at right angles and engage inclined slots 11 in the web of the channel. They may be integral with the slab reinforcements. Figs. 5 and 7 show a method of connecting together two tongued and grooved slabs in which the slots are provided in metal fittings 15 having holes 16 through which a reinforcing rod 17 is threaded. Slabs may be similarly connected to concrete columns. The fitting 15 may have additional side flanges to receive a horizontal reinforcing rod.
Patent GB-474010-A (GB)
Title: Improvements relating to filters
IPC: B01D35/12
Filed: 1936-10-13
Abstract: 474,010. Filters. VOKES, C. G. Oct. 13, 1936, No. 27815. [Class 46] The operation of a filter system comprising alternative filter units is controlled by valves which move under gravity when the system is revolved, the arrangement being such that one unit is always in circuit. Hollow filtering elements 24 of gauze and felt are mounted on either side of a member 40 which is attached to trunnions 1. Liquid supplied through one trunnion flows through a passage 42 and the bore of a plug 48 to the interior of the upper element and after filtration is discharged through a similar bored plug, a passage 46 and the opposite trunnion. When the device is turned about the trunnions, balls 50 which have closed the bores leading to and from the element initially in the lower position, move to open these bores and to close those of the bores for the element moving into the lower position. Specification 425,409 is referred to.
Patent GB-867956-A (GB)
Title: Strainer, particularly for tea and coffee
IPC: A47J43/22
Filed: 1959-08-14
Abstract: 867,956. Tea- or coffeestrainers. BEDNARTZ, H. Aug. 14, 1959 [Aug. 16, 1958], No. 27839/59. Class 46. The strainer consists of a spherical liquidtrap 2, Fig. 1, and a straining-element 1, the trap 2 having an edge 3 which projects beyond the straining-element and is flanged outwardly, forming a pouring-edge which first narrows and then widens. Alternatively the straining-element may be provided with the edge 3. In a further alternative a metal straining element having a small number of holes is used, each hole having an edge such as is described above. A handle or supporting rest 7, Fig. 3, has a raised portion 7a, and a hole 6 into which fits a lug 5 on the bottom of the trap 2. By adjusting the angular location of trap 2 relative to handle 7 the device may be used by either a left-handed or a right-handed person.
Patent GB-616655-A (GB)
Title: Improvements in electric current switches
IPC: F21V23/04
Filed: 1946-09-18
Abstract: 616,655. Snap-action switches. VENOT, E. Sept. 18, 1946, No. 27931. Convention date, March 27, 1941. [Class 38 (v)] [Also in Group XXXII] The resilience of moulded insulating walls on the switch base and contact-carrier is utilized to impart snap-action to a movable contact. Fixed contacts 6, 7 are bridgeable by a contact 5 on an inverted U-shaped carrier 3 having bosses 4 on its lower walls which spring out of and into engagement with corresponding recesses in walls 1a on the switch base 1 when the switch is operated.
Patent GB-890237-A (GB)
Title: Improvements in or relating to crossbar switch selectors
Inventor: CORNER ARTHUR CHARLES
IPC: H04Q3/00
Filed: 1959-05-09
Abstract: 890,237. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. April 27, 1960 [May 9, 1959], No. 27996/61. Divided out of 890,235. Drawings to Specification. Class 40 (4). An exchange uses cross-bar switches each of which has inlets individual to the bridges and a number of outlets multipled to corresponding cross-points of the bridges, the outlets of each switch being divided into groups so that a discriminating relay allows a select and an auxiliary select magnet to operate only in response to markings on the wanted group of outlets. The arrangement is part of the exchange described in Specification 890,239. Specification 739,905 also is referred to.
Patent GB-442071-A (GB)
Title: Apparatus for recovering water from or supplying water to subterranean formations
IPC: E03B3/26
Filed: 1934-07-23
Abstract: 442,071. Water supply ; drainage and irrigation. RANNEY, L., Petrolia, Ontario, Canada. July 23,1934, No. 27998 /35. Divided out of 442,008. [Classes 68 (i) and 85] [See also Group I] Apparatus adapted to be sunk into the ground for recovering fluids from, or supply of fluids to, a subterranean formation comprises a plurality of sectional vertical cells arranged to form a hollow shaft and has an outer perforated wall spaced from and immovable relatively to an inner wall. A hollow shaft 43 is circumferentially divided into independent vertical cells 44, each of which may be built up of superposed sections during sinking of the shaft. Each cell has a perforated outer wall 46 and an imperforate inner wall 47 and sides 49 ; an opening 48 is provided at the bottom of each cell for passage of the water to or from openings 51. Adjacent cells and the walls of each cell are bolted together. A shoe 45, built of sections, is provided on the lower cell sections and filled with concrete &c. For sinking the shaft by jetting, a pipe within the shaft supplies water to the shoe. The cells may be filled with sand &c. to facilitate sinking, the sand then being discharged through openings 51. A pipe 50 is connected to the top of each cell or extends through the cell for backwashing while the openings 51, other than those in the cells adjacent to that under treatment, are closed ; this pipe or a further pipe may be perforated within the cell and connected to opening 51, and may be surrounded by graded gravel, the finer gravel being towards the outside of the cell where cheese cloth &c. may be placed to retain the gravel. One or more of the cells may have an opening for outward projection of a collecting or discharging head. Water may be taken from upper strata by such collecting &c. heads and passed downwards through the lower screens to deeper strata.
Patent GB-1153987-A (GB)
Title: Improvements in or relating to Rolling Bearings
IPC: F16C19/46
Filed: 1966-06-23
Abstract: 1,153,987. Bearings. NADELLA S.A. and A. PITNER. 23 June, 1966 [24 June, 1965; 6 June, 1966], No. 28015/66. Heading F2A. A needle bearing comprises a race 1 with radial end flanges 4, a rigid washer 8 between the needles and one flange, and a resilient seal 6 between the washer 8 and the one flange, an axial flange 11 of the seal being compressed between the washer and race ring. The seal is of rubber and is more firmly connected to the washer by vulcanization (Fig. 1), or by engaging tapered surfaces (Figs. 2 and 4, not shown). The seal and flange 4 are connected by studs and notches in Fig. 2 (not shown) and by engaging tapered surfaces in Fig. 4 (not shown). The washer and seal are placed in the ring before formation of the second flange.
Patent GB-715702-A (GB)
Title: Improvements in or relating to apparatus and method for making and filling containers
IPC: B65B9/12
Filed: 1951-11-29
Abstract: 715,702. Packaging. STERLING DRUG, Inc. Nov. 29, 1951 [Dec. 12, 1950], No. 28016/51. Class 94 (1) Apparatus for making and filling successive sterile containers comprises a closed housing, means for advancing a two-layer strip of heat sealable material through the housing, a sterilizing device in the housing arranged at each side of the strip, means for forming the strip into a container, means for filling the container, crosssealing means for closing the container and severing the container from the strip, and an outlet in the wall of the housing for the filled containers. A flattened tube 20 of heat-sealable material.is passed from a reel 14 up between sterilizing ultra-violet radiators 58, 60 in an enclosure 22 and thence between ultra-violet tubes 76, 78 in a housing 42 which is kept supplied with sterilized air, at a pressure greater than atmosphere, through a port 124. In the housing 42 the tube 20 passes to slitting means 30, comprising a knife 80, Fig. 5, which slits the tube to allow the insertion of a filling pipe 92, an ultra-violet radiator 84 sterilizing the knife and the interior of the tube. A non-heat-sealable strip 24 is wound through the machine, off a reel 16 and onto a reel 18, passing parallel to the tube 20 and being guided into contact therewith just before it reaches a side sealer 32. The side sealer comprises opposed heated rollers 96, 98 (not shown), the roller 96 being hotter than the roller 98, and the strip 24 passing between the roller 96 and the tube 20 to prevent the tube sticking thereto. These rollers substantially sever two marginal strips 100 from the tube which strips are engaged by rollers 104 to feed the tube along, the strips subsequently being guided away from the filled tube. The filled tube is cross-sealed by heated members 110, 112, the member 112 being the hotter, and the strip 24 passing between it and the filled tube to prevent sticking. A feeler 117 contacts the filled tube before cross-sealing and is adapted to stop the filling if the tube assumes a more nearly cylindrical form due to too great a column of liquid therein. A pair of ultra-violet ray radiating tubes 119 sterilize the atmosphere in the housing 42 prior to use of the machine. Specification 703,850 is referred to as disclosing details of the filling and sealing means.