baber/WOPTO huggingface dataset:
Patent GB-989649-A (GB)
Title: Optical apparatus
IPC: G01D5/38
Filed: 1962-08-16
Abstract: 989,649. Optical apparatus. G. S. K. WONG. Nov. 15,1963 [Aug. 16,1962], No. 31411/62. Heading G2J. A member M, whose linear displacement is to be measured, is rigidly connected to an optical plate O having a front silvered surface S adjacent a second optical flate O<SP>1</SP> of clear glass inclined at a small angle and thereto so that an interference fringe pattern may be formed by monochromatic light from source T, the interference pattern being observed through a grating G so that MoirÚ fringes are seen. The grating placed on the surface of optical flat O<SP>1</SP>, with its rulings set at a small angle to the bands of the interference fringe pattern, and the MoirÚ fringes may be counted by photoelectric cell P, amplifier A and electronic decade counter K.
Patent GB-502011-A (GB)
Title: Improvements in or relating to air logs
IPC: G01P5/07
Filed: 1938-10-31
Abstract: 502,011. Electric signalling systems. GRANAT, E., and COMPAGNIE DES FORGES ET ACIERIES DE LA MARINE ET D'HOMECOURT. Oct. 31, 1938, No. 31470. , Convention date, Nov. 23, 1937. [Class 40 (i)] [Also in Group XX] An air log is provided with a variable pitch impeller to enable errors in the air speed indications to be corrected. As shown the impeller 1 drives a transmitter 2 actuating a synchronous electric receiver 4. The transmitter 2 comprises two conducting segments 24, 25, connected to D.C. mains and co-operating with three equidistant stationary brushes 29, 30, 31, which are connected through the transmission wires 8 to a polyphase rotor in the receiver. The latter drives a speedometer 10 which may include a totalizer.
Patent GB-490640-A (GB)
Title: Improvements in or relating to cord for use in articles of rubber and cord adapted to withstand cyclic stresses
IPC: D02G3/28
Filed: 1937-11-16
Abstract: 490,640. Stretching yarns. GOODRICH CO., B. F. Nov. 16, 1937, No. 31506. Convention date, Feb. 24. [Classes 120 (ii) and 120 (iii)] A balanced cord for use in articles of rubber and cord adapted to withstand cyclic stresses, e.g. tyres and belts, is made by producing a twisted unbalanced cord and then elongating it an amount sufficient to produce in the subsequently relaxed cord a substantially balanced condition. As shown in Fig. 3, an unbalanced cord A from a spool 10, which may be braked, is passed around idler rollers 14, 15 to the stretching means 18 and the balanced cord is wound up into a package 11. The cord before passing to the means 18 may be moistened by a brush 28 rotatable in a bath of water 27 and the stretching means comprises a pulley 21 formed with a pair of grooves 22, 23, Fig. 4, and rotatably mounted on a stud 19 in a bracket 16 ; the grooves in the pulley are preferably tapered and the cord from the roller 15 passes several times about the groove 23 of lesser diameter, around an idler pulley 24 mounted in the bracket 16 and then several times around the groove 22 of larger diameter before passing around a stop-motion member 25 on to the package 11. In the arrangement shown in Fig. 6 the stretching pulley 32 is mounted in a frame member 31 and is driven by a belt from a shaft 41 and the idler pulley 33 is rotatably carried in an arm 52 pivoted with the frame member 31 and having a roller 54 at the pivot 53 connected by a chain 55 to a roller 56 integral with an arm 57 pivoted on the axis of the roller 56 and carrying a counterweight 58 ; the arm 57 is connected by a link 59 to a lever 60 pivoted on a rod 61 and carrying a brake 62 adapted to be moved into and out of contact with the supply spool 30 and cushioned by a spring 63 on the link 59. Should the cord A become slack, the pulley 33 drops and causes the brake to be applied to the spool 30. In a modification, the idler pulley 33 is mounted in an arm disposed in close proximity to the stretching pulley so as to reduce the extent of the reach of the stretched cord between the pulleys.
Patent GB-935655-A (GB)
Title: Counter type phase-pulse detector
IPC: H04L5/12
Filed: 1960-09-13
Abstract: 935,655. Multiplex transmission systems. COLLINS RADIO CO. Sept. 13, 1960 [Nov. 20, 1959], No. 31538/60. Class 40 (5). In an arrangement for receiving and demodulating phase modulated signals in which the phase of a signal is changed relative to its previous phase by one of a plurality of discrete amounts, each discrete amount representing a unique combination of marks and spaces on a plurality of channels, existing and previous signals are stored and caused to produce pulses whose separation is indicative of the phase shift, the exact shift being determined by a pulse counter started and stopped by the respective pulses. As shown, Fig. 1, the input is allowed to build up a signal in one of the stores 11, 12 whilst the previous signal is stored in the other. At the end of a storage period for a particular store the signal is quenched and the subsequent signal is then allowed to build up. The stores feed pulse formers 13, 14 which produce output pulses each time the signal crosses the zero axis in a positive going direction. Sampling pulses occurring near the end of each storage period cause the circuit 15 to emit a single pulse received from the pulse former 13. This pulse sets a bi-stable circuit 29 and initiates the circulation of a pulse in a delay circuit 27 the number of circulations being counted by the binary counter 31. The next output from the pulse former 14 resets the bi-stable circuit 29 to interrupt the circulation, the final count in the counter 31 being submitted to a decoder matrix 32 which transforms the count into appropriate mark or space signals on channel outputs I . . . III. Inversion of alternate signals from one of the channels is necessary as described in Specification 735,654. The phase shifts for the various combinations of mark and space are so chosen that channels may be discontinued without necessity for changing the receiving arrangements, Fig. 8 (not shown). In an alternative arrangement the pulse formers are arranged to produce pulses on both upward and downward crossings of the zero axis. In this case the number of pulses to be counted is halved, but the ultimate result is ambiguous since the same count may be obtained for two phase differences which themselves differ by 180 degrees. This ambiguity is resolved by the provision arrangements for detecting whether the phase difference lies between 0 and 180 degrees or between 180 and 360 degrees, Fig. 2 (not shown). Specification 828.782 also is referred to.
Patent GB-1292477-A (GB)
Title: Improvements relating to vacuum cleaners
IPC: A47L5/22
Filed: 1970-06-30
Abstract: 1292477 Suction cleaners GENERAL ELECTRIC CO 30 June 1970 [17 July 1969] 31644/70 Heading A4F [Also in Division F1] An electric motor and suction fan assembly for a vacuum cleaner comprises an integrally moulded member 46 forming a part 48 of a fan chamber and a part 50 of an electric motor housing separated by an integrally moulded partition 52, a fan 88 including a hub 90 and radially extending blades 94, 96, the fan chamber including an air inlet zone 116 in which air flows freely to both sides of the fan and an air accelerating passage in which two generally spiral air flows are produced as illustrated in Fig. 8, and a diffusing passage 123 leading to an exhaust opening, a substantial part of the diffusing chamber 123 being integrally moulded with the fan chamber. The part 50 is integrally formed with recesses for the commutator brushes 40 of the motor 25 the main body of which is housed in a sheet metal member 80 secured by screws to the part 50. Air is drawn by the fan 88 through a dust bag 28, Fig. 2 (not shown) and a filter sleeve 87 surrounding and slots 82 in the member 80, and over the motor to cool it, and thence through an opening 112, Fig.7 (not shown) in the partition 52 into the fan chamber. If desired a further air inlet opening may be provided in the moulded cover member 104 of the fan chamber which is connected by screws to the moulding 46. The air discharged from the fan chamber via the diffusing chamber 123 is diverted laterally by louvres 128, Fig.3 (not shown) so as not to be directed towards the user of the machine.
Patent GB-676099-A (GB)
Title: Improvements in or relating to the dehydration of foodstuffs and other substances
IPC: F26B9/06
Filed: 1948-12-07
Abstract: 676,099. Drying apparatus. WOOD, J. H. G., and MODERN HEALTH PRODUCTS, Ltd. Dec. 7,1949 [Dec. 7, 1948], No. 31651/48. Class 34(ii) In apparatus for drying foodstuffs &c. comprising a drying chamber 1 having trays 3 supported tier fashion on bearers 4, openings 7 being formed in one side of each tray and the trays being so arranged that the openings are alternately directed to opposite sides of the chamber, expansion chambers 8, a fan supplying heated air to the bottom of the chamber 1 and return air ducts 9 connecting the expansion chambers to a heater 10, each air duct 9 is fitted internally with a cooling water pipe 12 or a honey-combed radiator extending through the duct and with baffles 11 to cause the air to follow a tortuous path. Chamber 1 is divided by a partition 2 into two compartments each containing trays and each having an expansion chamber 8 and return duct 9, the trays having wire mesh bottoms 5 and flanges 6 formed with apertures 7, the alternate arrangement of the trays causing the drying air to follow a sinous path. The drying air has a temperature of 80‹F to 140‹F and the cooling pipes may be supplied with defrigerated water.
Patent GB-689809-A (GB)
Title: Improvements in and relating to fusible plugs for radiators for space heating
Inventor: NYBLAD LAWRANCE JOHN
IPC: F24D19/10
Filed: 1950-12-30
Abstract: 689,809. Radiators for heating buildings. SANTON Ltd. Dec. 31, 1951 [Dec. 30, 1950], No. 31668/50. Class 64 (ii) [Also in Group XXI-X] In a pressure-relief safety device for a space-heating radiator in which oil or water is sealed, a member 8 of eutectic material normally closes an axial, outlet bore 5 in the body 3 of a plug but fuses at an excess temperature, which may be above that of the boiling point of the liquid in the radiator; any issuing liquid or vapour is diffused, e.g. by a wad of fibre glass 11. The plug has a hexagonal head so that its screw thread may be tightened in the radiator body 4 and is swaged over at its respective ends to retain at one end a washer 9 holding a disc 8 of the eutectic alloy of bismuth and lead and at the other end a perforated copper cap 12 for retaining the fibre glass 11 in an enlarged portion of the bore 5.
Patent GB-836533-A (GB)
Title: Improvements in or relating to weaving shafts
IPC: D03C9/06
Filed: 1958-10-06
Abstract: 836,533. Weaving shafts. FROHLICH A.G., E. Oct. 6, 1958 [Oct. 5, 1957], No. 31838/58. Class 142(2) The carrier rods of a weaving shaft are attached to the side stays 1 by means of a deformable element 4 which is attached to the side stays 1 by means of bolts 8 and a rigid plate 5, and inserted in the hollow ends of the carrier rods, the bolts 8 then being tightened so that the element 4 expands in planes at right angles to the bolts, thereby wedging itself in the carrier rod.
Patent GB-1164018-A (GB)
Title: Improvements in or relating to Turbo-Driven Superchargers for Two-Stroke I.C. Engines
Inventor: OLSSON ROLF EINAR MAGNUS
IPC: F02B37/007
Filed: 1967-07-11
Abstract: 1,164,018. Supercharged I.C. engines. GOTAVERKEN AB. July 11, 1967, No. 31853/67. Heading F1B. In a supercharged engine having the turbine 8 of an exhaust driven turbocharger connected to a group of cylinders by a short conduit 7, a receiver 15 is connected to the pipe 7 by a shut off valve 16. At starting and low loads valve 16 is closed and turbine 8 operates on the pulse system. At higher loads valve 16 is opened, whereby receiver 15 damps pulsations and the turbine operates on the constant pressure system. In Fig. 1 separate groups of cylinders 1...3, and 4...6 are connected by pipes 7, 9, to separate turbines 8, 10, and receiver 15 is connected to both conduits 7, 9 through valves 16. The turbochargers 11, 12, deliver through coolers 14 to opposite ends of the charge receiver 13. In engines having more than six cylinders, groups of cylinders may be connected to separate inlet compartments of each turbine.
Patent GB-335761-A (GB)
Title: Change-speed gearing for motor vehicles
IPC: F16H3/08
Filed: 1929-10-22
Abstract: 335,761. Alltree, A. Oct. 22, 1929. Variable-speed gearing. - Comprises four or three-speed and reversing countershaft gearing with a direct clutch drive, helical clutch gearing for both or the only middle speed, and a sliding- gear spur pair for the lowest speed, and is a development of the arrangement of Specification 201,594, [Class 38 (v), Electric switches &c.]. The driven shaft b, Fig. 1, and/or the countershaft l are formed with splines from end to end and are in two main diameters b<1>, b<3> and l<1>, l<3> with thrust rings b<4>, l<4> splined at the junction of the two diameters supporting bearing sleeves b<2>, l<2> for the loose helical gears e, n. The splines are deeper at b<1>, l<1> when the diameter is greater. In Fig. 1, a double splined clutch c engages driving-shaft a direct, or gear e for upper middle speed. Gears f, g are splined to shaft b, so that lower middle speed is entrained by clutch m<1> with teeth in line with spur teeth of gear m, which engages spur gear g for lowest speed. An idler meshing with gear m may be slid into mesh with gear g for reversed driving and may be operated from the selector device through which the strikers of elements c, m are controlled. In one modified four-speed gear, the spur pair g, m is arranged between the helical pairs e, o and #, m. In a second modified four-speed gear, both the sliding elements c, m are arranged on the driven shaft b. In a third modified four-speed gear, the lower middle speed as well as the lowest speed is effected by enmeshment of spur gears. A three-speed form is shown in Fig. 8, the sliding elements being c, m as before. Reversal is effected by sliding a pair of idlers into mesh with spur gears q, g. In a modified three-speed form, the gear g is slidable on shaft b. The bearing b<2> may be lubricated by a scoop z, Fig. 4. attached to the adjacent wheel g. The scoop picks up oil and drives it in through a hole e<3> in the projecting boss e<2> of the loose gear e.
Patent GB-1486539-A (GB)
Title: Steelmaking
IPC: C21C5/52
Filed: 1974-10-04
Abstract: 1486539 Refining ferrous melts BRITISH STEEL CORP 4 Oct 1974 [5 July 1973] 32043/73 Heading C7D In the electric arc furnace production of steel, metal in liquid and/or solid state is charged to the furnace, the charge is heated both by the arcs and by oxygen blown through the inner nozzle of a coaxial tuyere 8 in the side wall 2 of the furnace, (the outer nozzle carrying a protective fluid) and a particulate charge of ferrous material is continuously fed into the vessel. The oxygen may include entrained lime, and may be replaced by an inert gas if the molten metal in the furnace does not cover the tuyere, and when the metal is subsequently tapped. The protective fluid may be atomized fuel oil, propane, natural gas, blast furnace or coke oven gas, N 2 , H 2 , CO 2 , Ar or H 2 O and is supplied preferably at 2-10% of the 02-rate. Suitable solid and particulate charges are ferrous scrap, pig iron or pre-reduced pellets; suitable molten charges include pig iron and prerefined iron or steel. The outer nozzle may be of C or stainless steel, and the inner of Cu; the nozzles may be spaced by fins. In another embodiment Figs. 2, 3 (not shown) the furnace is tilted to allow the molten metal to cover the tuyere so that O 2 - refining may commence. The furnace may be provided with two coaxial tuyeres.
Patent GB-845184-A (GB)
Title: Improvements in electrodialytic apparatus for the treatment of liquids
Inventor: KRESSMAN THEODORE ROGER ERNEST
IPC: B01D61/50
Filed: 1955-11-09
Abstract: 845,184. Rigid laminates. PERMUTIT CO. Ltd. Oct. 17, 1956 [Nov. 9, 1955; March 2, 1956], No. 32060/55 and 6656/56. Class 140. [Also in Group XXXVI] Inserts facilitating liquid flow in electrodialysis cells comprise parallel sheets 1, 2, Fig. 2, of polyvinyl chloride, polystyrene or polythene, or of metal covered with one of these materials, enclosing separators which may be of rectangular or circular cross-section as at 3, or may comprise corrugated sheets, or pairs of sheets secured face-to-face and having overlapping circular or other holes or rectangular slots which provide for sinuous flow of liquid through and over the sheets. Specification 845,186 is referred to.
Patent GB-507288-A (GB)
Title: Improvements in hopper wagons
IPC: B61D7/30
Filed: 1938-11-07
Abstract: 507,288. Unloading wagons. WHITE, J. W., and VALBERG, C. O. Nov. 7, 1938, No. 32166. [Class 78 (iv)] A hopper wagon has a hinged door or side 5 held normally against gravity by pivoted catches 14 which are released at the dumping point by an arm 16 engaging a ramp rail 18. A second ramp rail 19 restores the door to the closed position in which the catches automatically re-engage. In a modified construction an additional link is interposed between the catch arm and the ramp arm 16, and the catch arm has a combined sliding and pivotal movement which is stated to close the door more effectually.
Patent GB-652084-A (GB)
Title: Improvements in or relating to rotating cutter heads for wood-working machines
IPC: B27G13/10
Filed: 1948-12-13
Abstract: 652,084. Cutter heads. RATCLIFFE, J. T., and HARPER, I. W. E. Dec. 13, 1948, No. 32196. [Class 145(i)] A cutter head for a woodworking machine of the kind in which the cutter blades 15 are inserted in oufwardly directed slots extending axially for the width of the head, has plate 12 against which the blades abut and clamping members 17 having a groove co-operating with a similar groove in the head to receive a tapered collet 21 expanded by tapered head 19 of bolt 18. In a modification (not shown), the head engages the clamping member directly. The Provisional Specification describes an embodiment having a threaded clamping member directly engaging bolt 18 and having a tapered projection which engages a semi-circular groove in the head.
Patent GB-1487926-A (GB)
Title: Plasma arc torch operating method
IPC: B23K10/00
Filed: 1976-10-06
Abstract: 1487926 Blow torches RIKAGAKU KENKYUSHO 6 Got 1976 [20 July 1973] 32211/74 Heading H5H [Also in Division B3] In a method of operating a transferred plasma arc torch comprising a cathode rod 1 surrounded by electrically conductive bushings 3, 6, a reactive gas 7, e.g. oxygen or air is supplied to the channel between the two bushings 3, 6 and an inert gas 4, e.g. argon is supplied to the channel between the cathode 1 and inner bushing 3 at a flow rate such that the reactive gas 7 is prevented from entering the bushing 3 and such that it is below the point of inflexion of the relationship between heat loss at the outer bushing 6 and the flow rate of the inert gas (Fig. 3, not shown). The cathode 1 and water cooled bushings 3, 6 of the torch, which is used for welding, coating or cutting of aluminium or steel, are insulated from each other by insulators 10. The arc 9 is transferred from the cathode 1 to the workpiece 8 during the starting of the torch, via the bushings 3, 6 with the aid of switches 12, 13. Inert gas 4 is supplied to the inner bushing 3 via an electromagnetically operated valve 21 or 22 and a needle valve 23 or 24. The channel between the two bushings 3, 6 is flushed with inert gas 29 via valves 30, 31 before the reactive gas 26 is supplied to the channel via valves 27, 28. A pressure relief valve 32 is provided.
Patent GB-859164-A (GB)
Title: Improvements in or relating to rotary duplicating machines
IPC: B65H7/18
Filed: 1958-10-09
Abstract: 859,164. Copying documents; feeding sheets. RITZERFELD, W., and RITZERFELD, G. Oct. 9, 1958 [Oct. 25, 1957], No. 32252/58. Addition to 823,552. Classes 100(1) and 100(2) In a rotary duplicating machine for printing from a manuscript master sheet attached to a printing drum, comprising a counter pressure roller co-operating with the drum, and conveyer means for guiding a copy sheet from a feeding point through the line of printing to a delivery point, the conveyer means having a copy sheet gripping bridge extending between movable guides which with the bridge perform one circuit during a revolution of the drum, there is provided an electric device in the feed path of a sheet to the bridge for sensing a deviation of the sheet from its desired path, further feed movement being then interrupted. The conveyer means 13, Figs. 1 and 2, and gripping bridge 17 are as described in the parent Specification. If a copy sheet 26 fed by a device 24 from a stack 25 to the gripping bridge deviates from its path, it passes between sensing members 81, 139, thereby interrupting a circuit to a magnet 143 when a holding circuit through contacts 146 is broken by a cam 137 on the drum 1, and the member 139 is swung upwards by a cam 136. The armature 147 is released and closes contacts 148 to energise a magnet 75, whose armature 77 releases a locking disc 79 on the counter-pressure roller 4, which is thereupon turned away from the drum 1 by rotattion about its eccentric shaft 5. The feeding device 24 is reciprocated through linkage from a segmental toothed wheel 23 fixed to the shaft 2 on which the drum is rotatable. When the roller 4 is moved away from the drum, a switching segment 156 is moved counter-clockwise, causing release of the wheel 23 from the drum to stop the feed and to stop the conveyer 12, which is also driven from the wheel 23. If no sheet is held by the bridge 17, a sensing device 30 on the bridge slides across a contact 150 to energise the magnet 75. If a copy sheet remains attached to the bridge after the delivery point 69, the device 30 is prevented from touching a contact 152 at a time when a cam 138 has opened the contact 146, and the magnet 143 is de-energised and the magnet 75 energised. A manual lever 152 can be pressed so that a roller 153 enters a recess 154 at a particular position of the drum, to close a contact 1351 and energise the magnet 75.
Patent GB-943986-A (GB)
Title: Substituted 2-oxo-3:3-di-(para-hydroxyphenyl)-1-thiaindanes and process for their manufacture
IPC: C07D333/64
Filed: 1961-09-08
Abstract: The invention comprises 2-oxo-3:3-di(p-hydroxyphenyl)-1-thiaindanes which are substituted in the thiaindane residue by at least one substituent selected from halogen atoms, lower (1-6C) alkyl groups and lower alkoxy groups; their phenolates and esters; and their preparation by condensing an appropriate 2:3-dioxo-1-thiaindane with phenol, followed, if desired, by conversion of a resulting free hydroxy compound into a phenolate thereof, or vice versa, or conversion of a free hydroxy compound or phenolate into an ester.ALSO:Disinfecting and preserving agents contain, in admixture or conjunction with a suitable diluent, a 2-oxo-3 : 3-di-(p-hydroxyphenyl)-1-thiaindane which is substituted in the thiaindane residue by at least one substituent selected from halogen atoms, lower (1-6 C) alkyl groups and lower alkoxy groups, or a phenolate or ester thereof; the process of treating inanimate materials therewith is also claimed.  Solutions, emulsions, ointments, creams, powders and tinctures are mentioned which can be applied to the skin, instruments and textiles. Specified esters are those formed with alkane carboxylic acids e.g. acetic, propionic, butyric and trimethyl acetic.  Specified phenolates are the sodium, potassium or calcium phenolates.ALSO:Foods and feeds are preserved against bacteria and fungi by the use of 2-oxo-3:3-di(p-hydroxyphenyl)-1-thiaindanes substituted in the thiaindane residue by at least one halogen atom, lower (1-6c) alkyl group or lower alkoxy group, and their phenclates and esters.