baber/WOPTO huggingface dataset:
Patent GB-689139-A (GB)
Title: Continuously regulatable hydraulic change speed transmission drive
IPC: F16H39/08
Filed: 1951-01-24
Abstract: 689,139. Hydraulic transmission. TRUDEL & CO. AKT.-GES. Jan. 24, 1951 [Oct. 20, 1950], No. 1873/51. Class 69 (ii). A continuously regulatable hydraulic change' speed drive comprising in a housing 1 an oil pump 10 and an oil motor 7 with the shaft 5 of the pump extending at right angles to the motor shaft 4, has a control plane 51 between the pump and the motor and oil flow control means through the wall forming said control plane permitting direct flow from the pump to the motor and vice-versa over separate oil flow passages for inflow and outflow of the actuating oil. A cover 8 forms the base plate for the primary motor (not shown) which is keyed to the shaft 5 to drive the pump 10 which has bores 54 housing ball-pistons 11, 20 spring urged against a ring 32a in a swash plate 9, the inclination of which is governed by a spring-loaded push-rod 16 actuated by a cam 14 secured to a spindle 14a attached to a control knob 12. The cam 14 can be continuously rotated if desired. The pump 10 has ports 53 and rotates over the control plane 51 which contains control slots or ports 52 and 52a. The motor 7 is housed in sleeve inserts 2 and 3 formed with annular channels 55 and 55a respectively and carrying discs 15 having cam tracks 15a. The motor has cylinders 58 with ports 57 and 57a and two ballpistons 19 spring urged against the track 15a. Oil from the pump flows from the central slots 52 into the annular channel 55 and through the port 57 into the cylinder 58, the pressure causing the ball-pistons 19 to ride up on the curved tracks 15a and thereby rotate the motor 7. Communicating slots 56 and 56a are relatively offset so that the port 57 is closed when the port 57a is open, and vice-versa. Oil from the pump circulates through the motor via port 57a, slot 56a, channel 55a, control slot 52a and into the pump port 53. The discs 15 may be exchanged for discs having tracks 15a of multiple curvilinear shape to change the number of motor piston strokes per revolution, the inserts 2 and 3 also being exchanged for inserts having the appropriate arrangement of control slots 56 and 56a. The housing has an oil filler 22 and all free spaces in the housing below the oil level 50 are in communication with the oil reservoir via ducts 60 and 61, the latter communicating with the channel 55a through an opening 62.
Patent GB-1013661-A (GB)
Title: Improvements relating to charging glass-melting furnaces
Inventor: GOODEY DEREK OWEN
IPC: C03B37/085
Filed: 1963-01-15
Abstract: <PICT:1013661/C1/1> Apparatus for charging and melting glass marbles comprises a hopper 2, furnace 11, and an inter-connecting free-flow gravity-feed guide conduit consisting of an upper sloping portion 6 pivoted at 8 to a lower fixed vertical portion 9 and driven at its upper end 5 to oscillate in a vertical plane, preferably through an angle of 13 degrees at 10 cycles/min., to prevent jamming of the marbles.  The hopper is provided with an internal weir 3, and the furnace is preferably electrically heated and used in the manufacture of glass filaments 12.  These filaments may be fed on to matting to form a chop stand mat. In a modification, a row of feed conduits may lead from a hopper or series of hoppers to a row of furnaces.
Patent GB-413372-A (GB)
Title: Improvements in means for feeding or conveying small coal, grain or other powdered or pulverulent material
IPC: B65G53/52
Filed: 1933-01-20
Abstract: 413,372. Transmitting pulverulent material. WHITEHOUSE, J. M., 13, Alexandra Road, and HADDAN, A. J. H., 1 lA, St. Andrew's Road, both in Bedford. Jan. 20, 1933, Nos. 1939 and 12765. [Class 102 (ii).] Pulverulent material is conveyed through a conduit a, Fig. 1, by pressure fluid admitted to the space between the conduit and an outer casing c by a pipe g. The conduit is made from a strip of sheet metal which is wound on a helical core in such a manner that at the overlapping portions there are formed channels, or a continuous narrow slot d, for the admission of the pressure fluid. A wire helix b is placed between the conduit and casing. A safety valve n, Fig. 14, may be provided on a chamber m<1> between sections of conduit which contains a number of fine screens o. In a modification the conduit is composed of a number of separate slightly tapered tubular members adapted to overlap at their ends to provide narrow channels for the passage of the fluid.
Patent GB-358832-A (GB)
Title: An improved razor stropper
IPC: B24D15/08
Filed: 1931-01-20
Abstract: 358,832. Stropping razors. FARROW, J. W., 48, The Bungalows, Villa Real, Consett, Co. Durham. Jan. 20, 1931, No. 1960. Addition to 350,322. [Class 60.] A razor stropper consists of a block c of glass or glazed pottery ware having on one face thereof a trough d in which are two projections a, b adapted to engage the two outer holes of a razor blade. The blade is pressed downwardly and released in order to strop it. One projection only may be employed.
Patent GB-1440541-A (GB)
Title: Organ system for automatically producting runs of various character
IPC: G10H1/26
Filed: 1974-01-16
Abstract: 1440541 Electrophonic musical instruments HAMMOND CORP 16 Jan 1974 [16 Jan 1973] 01973/74 Heading G5J The invention relates to arpeggio devices as in Specification 1,074,177 in which any note played on an accompaniment keyboard enables all octavely related keys on a special keyboard which is stroked to produce an arpeggio or run. The invention modifies the operation thus: (a) if no keys are actuated in the accompaniment keyboard all arpeggio keys are enabled to produce a chromatic run; (b) if one or more keys are actuated all either in the C or C # whole tone scale, the arpeggio keys corresponding to the other scale are disabled; (c) if one or more keys in each whole tone scale is actuated only the corresponding keys of the arpeggio keyboard are enabled. In the circuit, Fig. 2, the buses for supplying keying potential to octavely related keys of the arpeggio keyboard for the C whole tone scale are shown at 60-70 and for the C# whole tone scale at 61-71. When the accompaniment keyboard is not actuated, it applies keying potential to none of the buses, allowing both transistors 142 and 144 to conduct. The negative emitter potential is thus applied through diodes 100- 110 and 128-138 to enable all the keying buses 60-71, while the voltage drop across the diodes ensures that transistors 142, 144 conduct. If keying potential is applied by the accompaniment keyboard to a bus in the C whole tone scale, transistor 142 is cut off removing keying potential from the C# whole tone scale buses 67-71. If keying potential is applied by the accompaniment keyboard to one or more buses in each group these are the only ones to receive it as both transistors 142 and 144 are cut off. Preferably the circuit is on a plug in printed circuit board 80.
Patent GB-823134-A (GB)
Title: Improvements in or relating to travelling-wave tubes
IPC: H01J25/38
Filed: 1956-01-20
Abstract: 823,134. Travelling-wave tubes. BRITISH THOMSON-HOUSTON CO. Ltd. (General Electric Co.). Jan. 20, 1956, No. 2017/56. Class 39(1). To increase the gain of a travelling-wave tube, the wave transmission structure has an abrupt impedance discontinuity at a point along its length which reflects a portion of the electromagnetic field and thereby increases the field strength over the portion of the structure between the input end and the discontinuity. The helix 3 may have a notch 13, preferably situated half a wavelength from the input end, or a metal ring inside or outside the envelope, or. a probe coupled externally to a resonant circuit might be used. An attenuator 12, e.g. a band of lossy material inside or outside the envelope, may be provided, or the attenuator may be part of the envelope wall. The transmission structure may be a disc loaded rod or waveguide. A hollow beam may be used. Specification 793,987 is referred to.
Patent GB-1093927-A (GB)
Title: Process for the preparation of purified phosphoric acid
IPC: C01B25/234
Filed: 1966-01-17
Abstract: In a continuous process for purifying the H3PO4 obtained by treatment of rock phosphate with H2SO4, by extraction in countercurrent with a water-immiscible organic solvent followed by back extraction with water and recycling of the solvent, a source of HF is added to the acid before, during, or after extraction. The source may be gaseous or aqueous HF, or solid or aqueous NH4F or NH4HF2.  The process may be operated at at least 50 DEG  C. using three extraction stages with tributyl phosphate and six back extraction stages.  The organic solution of H3PO4 may be purified before back extraction by adding a solution of Ba phosphate in H3PO4 to ppt Ba sulphate and silicofluoride which are centrifuged off.  The acid remaining in the aqueous phase after extraction may be concentrated and treated again with solvent. The solvent may be purified with NaOH before being recycled.  The raw acid may be decolorized with carbon.
Patent GB-1305881-A (GB)
IPC: B41J21/04
Filed: 1971-01-15
Abstract: 1305881 Typewriters MESSA-MAQUINAS DE ESCREVER SARL 15 Jan 1971 [22 Jan 1970] 2140/71 Heading B6F Tabulator column stops 8 are set and cleared by keys 1A, 1 acting on a common bar 3 and a set and clear dog 7. The set key 1A and clear key I rotate the bar 3 in opposite directions to engage a set lug 7A or clear lug 7B with the column stop 8.
Patent GB-492013-A (GB)
Title: Improvements relating to rotors for rotating wing aircraft
IPC: B64C27/02
Filed: 1938-01-22
Abstract: 492,013. Aircraft with rotary - wing systems. FOCKE, H. Jan. 22, 1938, No. 2152. Convention date, Aug. 16, 1937. [Class 4] In an aircraft rotor having blades d connected to the hub by flapping and drag pivots a, b, the blades are supported, at rest, by a surface disposed outwardly from the hub beyond the drag pivot. As shown, the rotor-blade, at rest, is supported by a plate f engaging a plate e and carried by the hub. The plate e may be convex or concave, the plate f being concave or convex.
Patent GB-249264-A (GB)
Title: Improvements in lateral splash guards for motor and other vehicles
IPC: B62D25/18
Filed: 1925-01-24
Abstract: 249,264. Small & Parkes, Ltd., and McQueen, J. Jan. 24, 1925. Lateral-splash guards of the type depending from the hub cap of the wheel of a vehicle comprise in combination with a ball or roller bearing mounted on a stud B projecting outwardly of the hub cap A a depending arm C provided with a series of holes, a triangular frame D provided with a corresponding series of holes to secure the frame D adjustably to the depending arm C by means of studs or bolts d, and a strip or sheet E of indiarubber divided into vertical fingers e. As shown in Fig. 2, two strips E of rubber may be employed.
Patent GB-1518421-A (GB)
Title: Orthopaedic appliance
IPC: A61F5/02
Filed: 1976-01-20
Abstract: 1518421 Inflatable mechanically articulated orthopaedic appliance INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE INSERM 20 Jan 1976 [24 Jan 1975] 02198/76 Heading A5R An inflatable, mechanically articulated orthopaedic appliance which enables disabled people to stand or sit without its deflation comprises a series of vertically spaced, flexible, inextensible sheets 4, 5g, 6g that support vertical, inflatable tubes 3 and which are provided with mechanical articulation running the length of the appliance. The sheets are wrapped around the patient and connected at their ends, by vertically extending lateral tabs, e.g. 9a, 9b that afford support for connecting pipes, e.g. 10a, 11, 10b, that connect the inflatable tubes of adjacent sheets. The articulation is provided by hinges 12, 13, or motorized articulators, Figs. 4, 13 (not shown), that are connected by arcuate bars 14, 15, Fig. 3 and vertical, optionally telescopic pins, e.g. 18, that are pinched between the tubes when the latter are inflated. A footwear extension 24 may be provided, and the sheets may be connected at their ends in numerous ways.
Patent GB-552519-A (GB)
Title: Improvements in and connected with indicating means for testing electrical circuits
IPC: G01R31/02
Filed: 1941-12-16
Abstract: 552,519. Indicating faults. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., HILL, W. E., MORGAN, R. W., and WINTLE, T. D. G. Dec. 16, 1941, Nos. 2216/42 and 118/42. Divided out of 552,516. [Class 37] Means for indicating the presence of earth faults on wiring systems, particularly of aircraft, comprises a portable casing associated with a plug adapted to be connected to the mains, the casing being provided with means for indicating the main from which a fault is being fed and having a mounting clip adapted for serving also as an earth return means. An ellipsoidal casing is formed in two parts, one part a housing a two way switch a<SP>1</SP>, and the other part b being of translucent material and enclosing a lamp b<SP>1</SP>. The parts a, b are screwed into a sleeve 1. The switch a<SP>1</SP> is operated by a slidable bar c for connecting the lamp with either the positive or the negative main, one lead from the lamp being connected through the switch to a two-pin plug d to be introduced into a socket on a distribution board. The casing is provided with a mounting and earthing clip e comprising a plate l<SP>1</SP>, into which the lamp bl is screwed, formed with an arm l<SP>3</SP> with a hooked end l<SP>2</SP> against which the bent. end of a lever having a handle l<SP>4</SP> abuts. This lever is pivotally mounted on a bracket f which has a pin h and coiled spring g for keeping the clip closed. The handle l<SP>4</SP> serves also as a prod for performing continuity tests. The bar c is' marked to indicate, according to which end projects, whether an earthing fault exists on the negative or positive side. In a modification a pair of lamps are included in the casing, one at each end, the switch being omitted. The transparent or translucent ends of the casing are of contrasting colours or are marked with signs so as to indicate by the illumination of one or the other lamp, from which main an earth is being fed. Specification 552,516 is referred to.
Patent GB-985320-A (GB)
Title: Improvements in or relating to barred gates
IPC: E06B11/04
Filed: 1962-01-22
Abstract: 985,320. Gates. W. J. HOSKING. Jan. 22, 1963 [Jan. 22, 1962], No. 2230/62. Heading E1J. A cattle gate 11 hangs on, or is slidable over, a roller 9 pinned to a rotatable post 4. Bearings 2 and 6 are carried by the fixed gate post 1 and ground respectively, and the gate is prevented from rotating by a pin 8 towards the bottom of the rotatable post 4.
Patent GB-1286369-A (GB)
Title: Improvements in and relating to the manufacture of tubes
Inventor: SARIO JAVIER VIDAL
IPC: B23K11/087
Filed: 1970-01-16
Abstract: 1286369 Making tubes J V SARIO 16 Jan 1970 [18 Jan 1969 7 Jan 1970] 2350/70 Heading B3A Tubes are made by feeding a succession of U-shaped profiles to a turning device which inverts alternate profiles, positioning successive pairs of inverted and non-inverted sections with their free longitudinal edges juxtaposed, and welding the juxtaposed edges together. Two profiles 18 and 30 are pulled by rolls 20 and 25 through a welder 7 after which the tube passes through a device 17 for finishing the welds. The tube then passes through a further set of feed rolls 13 before passing through a straightener 14. In a modification the feeding of the tube is effected by a conventional draw bench.
Patent GB-764245-A (GB)
Title: Magnetic transducer unit
IPC: G11B5/29
Filed: 1955-01-26
Abstract: 764,245. Magnetic recording transducers. INTERNATIONAL BUSINESS MACHINES CORPORATION. Jan. 26, 1955 [Jan. 29, 1954], No. 2356/55. Class 40 (2). In a magnetic transducer component comprising wafer-like layers 10... 13 of non- magnetic and magnetic materials, including an inner magnetic layer 10 associated with an energizing winding 16 and having a pole tip 101 for coacting with a magnetic record not shown, two outer magnetic layers 11, and intermediate non-magnetic layers 13, the latter layers 13 are of electrically conductive material, e.g. brass, phosphor bronze or copper, for electrically shielding the inner layer. 10. As shown, the layers are stampings from sheet stock, the inner layer 10 may be of laminated construction, the intermediate layers 13 are apertured to receive the thickness of the winding 16, and the outer layers 11 being magnetic shield the component from magnetic fields, In the assembly of each component the layers are coated with a cement and by means of their mounting and location holes 14, 15 are located in a jig not shown in which they are clamped until the cement dries. A multiple-channel read-write magnetic head for use in magnetic tape recorders and the like may be formed from a pair of sections each of which comprises a plurality of the components mounted in a block.
Patent GB-888022-A (GB)
Title: An improved device for storing and delivering sheets of paper or the like
IPC: G03B17/26
Filed: 1960-01-22
Abstract: 888,022. Sheet separators. ZINDLER, W., [trading as LUMOPRINT ZINDLER KOMM.- GES]. Jan. 22, 1960 [Feb. 7, 1959], No. 2374/60. Class 100(1) [Also in Groups XVII and XX] A device for storing and delivering paper comprises a lightproof chamber for a light sensitive paper, a movable cover for closing the chamber, a feeding element which moves the paper towards an opening in the chamber, means for moving the feeding element into contact with the paper, and a lost-motion connection between the cover and the means for moving the feeding element. As shown the light-proof chamber has two parts 7, 9 connected by a member 8, the part 9 having an opening 10 therein. The opening 10 is closed by a sliding cover 12 which runs on rollers 13, 14, and has an operating handle 18. The chamber is mounted on feet 5, 6 so as to be inclined to the horizontal. A pile of sheets 2 is disposed on a support 23 carried by an insert 40 in the chamber. The sheet separator consists of a roller 29 carried by a rod 28 pivoted to a lever 21. The lever 21 is pivoted at 22 to the insert 40 and is biased by a spring 24 towards rotation in a clockwise direction, such rotation being prevented by a stop 25. The roller 29 is made of polished steel and has an insert 32 of rubber on its periphery, its rotation being restricted by projections 30, 31 on one end which abut against the rod 28. The roller 29 normally rests on the top sheet 2. When the cover 12 is slid back by the handle 18 a stop 20 on the underside thereof engages the upper end of the lever 21 and causes the lever to move in a counterclockwise direction. The roller 29 rolls over the sheet on which it rests until the projection 30 abuts against the rod 28. In this position the insert 32 engages the sheet and as the lever 21 rotates further the sheet is pushed up through the opening 10 where it can be grasped by the hand. When the handle 18 is released the cover 12 returns to the Fig. 1 position under the influence of gravity and the spring 24 returns the roller 29, the smooth surface of the roller riding over the uppermost sheet in the process. Trays 34, 35 are mounted on the feet 5, 6 for holding non-light sensitive sheets.
Patent GB-1281998-A (GB)
Title: Condensation polymers
Inventor: ELLINGER LEO PHILIPP
IPC: C08G63/137
Filed: 1969-01-15
Abstract: 1281998 Condensation polymers BP CHEMICALS Ltd 12 Dec 1969 [15 Jan 1969] 2404/69 Heading C3R A thermoplastic material is made by condensing in an inert atmosphere at 130‹ C. a tetracarboxylic acid A where n is 2 or 3 with one or more compounds C having molecules containing 2-4 functional groups attached to aliphatic C atoms; these groups are OH and/or amine groups. Compound C may be difunctional; there may be 1 or 2 moles of C per mole acid A. The 2 moles of C may contain 1 mole diamine and 1 mole dihydroxy compound. Compound C may be a hydroxyamine. The condensation may be performed in the presence of diphenyl ether, and of a tertiary amine base as catalyst. The amine salt may be formed initially from A and C and then used in the condensation reaction.
Patent GB-236836-A (GB)
Title: Improvements in or relating to warm water supply plants
IPC: F24D19/10
Filed: 1925-01-27
Abstract: 236,836. Bren, P. T. Jan. 27, 1925. Hcating water.-In warm-water supply plant, including a thermostatically-controlled addition of cold water to the delivery, a container 6 is provided, having a mixing-chamber 6a connected to the cold-water supply 3 and a supply-chamber 6<b> connected to the delivery pipe 5, the thermostatic control means 8 being fitted as shown, outside the mixing-chamber, and operated by the temperature in the supply-chamber. A by-pass 12 in the hot-water pipe 4 from the heater 1 enables the mixing device to be cut out when desired.
Patent GB-250153-A (GB)
Title: Improvements in hand stapling or tacking devices
IPC: B25C5/10
Filed: 1926-01-28
Abstract: 250,153. Johnstone, D. V., and Fearn, J. W. Jan. 28, 1926. Stapling, hand tools for. - In a bench-type stapling device of the kind described in Specification 26201/13, in which the plunger a has a bladelike cutting and driving extension b, this extension is provided with a. strengthening rib e which has a preferably curved face e<1> bearing against the wall of the plunger housing c. The inner face of the extension has a sliding contact at f<1>, f<2> with two spaced bearing faces g<1> in the base of the plunger bearing. The staple-strip stop i is formed with a groove i<1> to give clearance for the rib e.
Patent GB-1023275-A (GB)
Title: Production of titanium dioxide
Inventor: EVANS ARTHUR WALLACE
IPC: C01G23/053
Filed: 1964-01-21
Abstract: In the production of titanium dioxide by thermal hydrolysis of aqueous titanium tetrachloride the aqueous hydrochloric acid separated from the titanium dioxide is contacted with titanium tetrachloride to form gaseous hydrogen chloride and aqueous titanium tetrachloride. Mineral rutile or ilmenite or leucoxene is chlorinated and the resulting titanium tetrachloride, which may be purified by distillation in the presence of hydrocarbons, mineral oils, soaps and/or sulphides, and should contain less than 100 p.p.m. of Fe, Cr, V, Nb is dissolved in at least 20% hydrochloric acid solution to give a final concentration of 100-300 gm./1. at 35-60 DEG  C. depending on acid concentration. Gaseous hydrogen chloride is evolved, dried to less than 2% water and passed over a catalyst whence chlorine is produced and used in the production of further titanium tetrachloride. The remaining titanium tetrachloride solution is added to boiling water and retained for at least seventy minutes, peptisation of the hydrous titanium dioxide being prevented by addition of polyvalent anions, e.g. sulphuric acid as flocculating agents before or during recovery.  The aqueous hydrochloric acid separated from the recovered precipitate may be concentrated by addition of part of the gaseous hydrogen chloride liberated in the titanium tetrachloride dissolution before recycling to the dissolution step.  The recovered hydrated titanium dioxide is calcined at 800-850 DEG  C., or additioned, calcined, leached wet or dry milled in a fluid energy mill, hydroclarified, coated with hydrated oxides of Al, Ti, Zr, Si Ce, PO4 alcohols and/or alkanolamines and/or remilled to form pigmentary TiO2.
Patent GB-305983-A (GB)
Title: Improvements in transformers for use in rectifier installations
IPC: H02M7/06
Filed: 1929-01-25
Abstract: 305,983. Akt.-Ges. Brown, Boveri, et Cie. Feb. 13, 1928, [Convention date]. Drawings to Specification. Transformers.-Relates to transformers for feeding multi-anode rectifiers in which powerful magnetic forces due to short-circuit current are avoided by subdividing the windings into groups, the primary sections being separated and connected in parallel to each other, and consists in arranging the secondary windings which are coordinated to the parallel-connected anodes in groups opposite the parallel-connected sections of the primary winding. Specification 296,996 is referred to.