baber/WOPTO huggingface dataset:
Patent GB-1153503-A (GB)
Title: Production of Sodium Phosphates
IPC: C01B25/30
Filed: 1966-06-01
Abstract: 1,153,503. Disodium phosphate; sodium tripolyphosphate and sodium metaphosphate. HOOKER CHEMICAL CORP. 1 June, 1966 [7 June, 1965], No. 24385/66. Heading C1A. Crude sodium hydroxide and phosphoric acid, at least one of which contains impurities which on reaction of the alkali and the acid form a precipitate, are reacted at 40-100‹ C. in a mole ratio between 1À9 and 2À2 respectively (corresponding to a pH of 8 to 9À5) and the precipitated material comprising insoluble impurities is separated from the solution from which disodium phosphate is subsequently crystallized. Suitable phosphoric acids are wet process acid, containing 30-70 wt. per cent of P 2 O 5  and which may be first treated with a reducing agent, e.g. sodium dithionite, metallic iron, sulphites, nitrites, phosphites, sulphides or hydrazine, to reduce metallic impurity to a lower valence state, and furnace acid. The crude sodium hydroxide may be a chloro-alkali diaphragm catholyte liquor containing 9-15 wt. per cent NaOH, 9-16 wt. per cent NaCl and other impurities. A flocculating agent, e.g. calcium oxide, calcium hydroxide or lime can be added to the neutralized mixture which is then aged at 50-100‹ C. for 5 minutes to 6 hours before filtering using diatomaceous earth, silica or clay as a filter aid. The filtered solution is crystallized at 0 to 40‹ C. and washed with cold water; above about 20‹ C. the heptahydrate is obtained and below this the dodecahydrate is obtained. The solid filter cake of impurities may be dried, granulated and used as a fertilizer. Sodium tripolyphosphate and sodium metaphosphate are made by reacting the disodium phosphate with phosphoric acid in the mole ratios of 5 to 1 and 1 to 1 respectively and calcining the product.
Patent GB-387266-A (GB)
Title: Improvements in railway signalling control apparatus
IPC: B61L13/04
Filed: 1932-09-01
Abstract: 387,266. Railway signalling control apparatus. VEREINIGTE EISENBAHNSIGNALWERKE GES., Siemensstadt, Berlin. Sept. 1, 1932. No. 24434. Convention date, Sept. 22, 1931. [Class 105.] Railway signalling control apparatus comprises two relays 1, 2 and two or more insulated rail lengths arranged so that the relay 1 is operated only when two or more of the rail lengths are occupied and that the relay 2 is operated over a contact of the relay 1 when only the last rail length is occupied or just vacated. With the arrangement shown in Fig. 1, the resistances 6, 7, 8 are such that relay 1 is picked up only when the three rail lengths 3, 4, 5 are occupied ; the relay 1 is then held over its stick contact 11 and reverses the contact 12. The relay 2 is energized over the reversed contact 12 only when the rail length 5 is vacated as prior to this the relay is shunted by the axle connections to rail 10 The two relays 1, 2 control a lock magnet 20, a contact 201 of which then opens to restore the apparatus to normal by de-energizing the relay 1. With the arrangement shown in Fig. 2, the relay 1 is energized over the circuit 1, 3, 16, 15, 14, 4 only when the two rail lengths 3, 4 are occupied ; the relay 1 closes contact 11 whereby the relay 2 is energized when only the rail length 4 is occupied as the shunt 16, 15, 14 is then removed. The apparatus returns to normal when the rail length 4 is vacated.
Patent GB-1001846-A (GB)
Title: Improvements in or relating to time-division multiplex telecommunications systems
IPC: H04Q11/04
Filed: 1962-06-26
Abstract: 1,001,846. Automatic exchange systems. SIEMENS & HALSKE A.G. June 26, 1962 [June 29, 1961; Nov. 16, 1961; April 2, 1962], No. 24447/62. Heading H4K. In a system in which groups of subscribers ITn . . . YTn are served by time-division multiplex highways SM1 ... SMy each of these has access to at least one highway such as M1 . . . MX1 which give access to storage devices such as 1Co In the event of a call being required between two subscribers of the same group two free time positions are chosen, and these are inserted respectively in the appropriate combinations of delay lines F1 so that the respective subscribers are gated on to SM1 at these times. Both pulses are inserted into a store combination of J1 indicative of a cross point gate such as 1k1 which is thus opened at these times. Both pulses are also inserted into a store combination of G1 indicative of one of the condensers 1Co so that the condenser is thus connected to the respective subscribers line circuits in one or other of the two pulse positions. Energy interchange between condensers in the subscribers' line circuits and the condenser 1Co indicated by G1 in the respective pulse positions takes place by the resonant transfer method, the condenser 1Co bridging the interval between the pulses to complete the connection. For connections between subscribers of different groups only one pulse position is used the connection occurring over gates 1kx 1 + 1 and ykx 1 + 1 and auxiliary highway Mx1 + 1. Connections between interexchange lines belonging to different groups such as 1Lm, x 3 Lm takes place over auxiliary highways such as Mz1 using one pulse position only. Connections between interexchange lines belonging to the same group utilize two pulse positions and a highway such as Mzn giving access to the storage condenser group 1Co. Interconnection between interexchange lines and subscribers' lines takes place using one pulse position only over contacts such as 1kx3. In a modification, Figs. 3, 2 (not shown), each interexchange multiplex has access to each other interexchange multiplex over a single cross-point gate. The highways may be of the two- or fourwire type, examples of cross-point gating arrangements for the latter type being given in Fig. 4 (not shown). Specifications 822,297 and 981,336 are referred to.
Patent GB-674251-A (GB)
Title: Improvements in and relating to adjustable drivers seats for agricultural tractors and for motor driven road vehicles in general
IPC: B60N2/50
Filed: 1949-09-23
Abstract: 674,251. Resilient mountings for seats. HOLMES, T., and STILES, J. K. Sept. 8, 1950. fSept. 23, 1949] No. 24502/49. Class 52 (i). A spring seat assembly particularly for farm tractors, &c. comprises a suspension system having a variable rate of resistance over the range of deflection permitted, the system being adjustable to suit the weight of individual drivers. A damping device is also incorporated. The assembly comprises a member 1 of U-shape in cross section adapted to be positioned on the vehicle a pair of arms 5 mounted at one end on the rock shaft 4 of a known type shock absorber 3, a seat 10 secured to or hinged at 9 to the other ends of the arms 5, a bell crank lever 2 pivoted to the member 1, one arm 2a being- connected to the arms 5 by a thrust member 12 while the other arm 2b is connected through a link 15 to one end of the springs 7, lying sideby-side, the other end of the springs 7 being anchored to a bracket 6 mounted on the member 1. The tension of the springs 7 is such that at no load the pull of the springs passes through the fulcrum of the bell crank lever 2. Application of the load causes rotation of the bell crank lever 2 with increasing moment about the fulcrum and also increasing moment of the springs followed by decreasing moment about the fulcrum which maintaining the moment of the springs. The effective length of the link 2b and thereupon of the lever arm 2b is variable by means of a screw 16.
Patent GB-921617-A (GB)
Title: A windscreen washing device
IPC: B60S1/48
Filed: 1961-07-06
Abstract: 921,617. Reciprocating pumps. B.LOPATER July 6, 1961 [July 11, 1960], No. 24538/61. Class 102(1). [Also in Group XXIII]. A windscreen washer includes a reservoir 1 having an opening 5 and a well 3 in which is fitted a pump 6 housing on electromagnetic coil 13 which may be actuated to displace upwardly a hollow piston 23 in the central bores 8, 9 of the pump. Upward displacement of the piston causes discharge of cleaning liquid in the bore 8 through delivery pipes 18, 19, simultaneously filling the bore 9 via the grooved seating 20 and a valve 21. Downward, return movement of the piston 23 causes closure of the valve 21 and displacement of liquid from the bore 9 via a valve 26 into the bore 8. Component parts may be of plastic or plastic covered.
Patent GB-200405-A (GB)
Title: Improvements in fruit and the like baskets
IPC: B65D85/34
Filed: 1922-09-11
Abstract: 200,405. Hughes, H. E. Sept. 11, 1922. Tubular baskets made by winding or bending sheet material; corner joints, and strengthening- pieces; lids.-A fruit or like basket consists of a strip A of ply-wood or veneer bent to cylindrical shape to form the body and provided with buttended internal hoops B sprung into position at the top and bottom. Upper and lower metal encircling bands C with inturned ends C' are secured through the hoops to the body, the lower one holding in position the bottom E and the upper one having tongues C<2> adapted to be turned down to hold a lid D in place. Specification 183,406, [Class 133, Trunks &c.], is referred to.
Patent GB-817548-A (GB)
Title: Shear
IPC: B23D25/00
Filed: 1957-08-06
Abstract: 817,548. Shearing; rolling-mill plant. MORGAN CONSTRUCTION CO. Aug. 6, 1957 [Nov. 21, 1956], No. 24713/57. Class 83 (4). In a shears in which longitudinally moving stock passing through a guide tube 61 is severed when the guide tube 61 is swung to deflect the stock between a pair of blade discs 31 rotating on parallel axes, the guide tube 61 is cut away at its end adjacent the blade discs 31 to the form of an open channel, the open channel being closed by a hood 76 except during severing of the stock. Rod passes from a mill stand 11 through guides 12 and 56 to the flared inlet 58 of the guide-tube 61 supported at its inlet end on rollers engaging fixed inclined slots 64. The outlet end of the guide tube 61 is supported on rollers 71 engaging fixed inclined slots 73 and is connected to a piston in a cylinder 85 communicating with a compressed air bottle 91. When. the guide tube 61 is moved by the piston during severing, the hood 76 which is pivotally mounted on the guide tube 61 is temporarily opened by the action of rollers 81 engaging slots 83. The rod which prior to severing is fed into a guide pipe 14 now engages the curved upper face of a rectangular guide 35 and passes into a guide pipe 13. In a four-strand mill plant, Fig. 3, the rod issuing from each pass traverses the guide 12, a shear 10, an outlet guide-pipe 13 or 14, water-boxes 15, 16 and 17, and a guide 19 or 21 leading to a reeling device 22 or 23.
Patent GB-416020-A (GB)
Title: Anthraquinone derivatives
IPC: C09B1/26
Filed: 1933-03-04
Abstract: An N-substituted-1-aminoanthraquinone-2-sulphonic acid carrying as N-substituent one or two alkyl, aryl and/or aralkyl groups is halogenated by known general methods and the halogen atoms so introduced replaced by an unsulphonated primary or secondary amino group.  The starting materials may be obtained by the process of Specification 399,528.  In an example 4 - bromo - 1 - methylaminoanthra - quinone - 2 - sulphonic acid (prepared by brominating 1 - methylaminoanthraquinone - 2 - sulphonic acid) is condensed with p-toluidine; it dyes wool blue shades. Specification 27187/07, [Class 2], also is referred to.
Patent GB-1240113-A (GB)
Title: Heat exchangers
Inventor: MCCALLISTER ROBERT A
IPC: F22B35/00
Filed: 1968-05-23
Abstract: 1,240,113. Fluid heaters; steam superheaters. FOSTER WHEELER CORP. 23 May, 1968, No. 24745/68. Headings F4A and F4S. A heat exchanger control system, particularly for use in a flue passageway 18, as shown in Fig. 2, wherein fluid heaters 20, 22, 24 are arranged side by side within a partition arrangement 34, incorporates a series of adjustable butterfly valves or dampers 44 to regulate the flow of flue gases across each of the tube banks 20, 22, 24, thus independently controlling the temperature of the fluid, e.g. steam or process gas, in each of the heaters. In operation the valves are actuated by automatic controls 48 which are responsive to the outlet temperatures of the fluids in each of the respective heaters, the entrance valves 46, 50, 56 and exit valves 52, 58 being operated to provide series and/or parallel gas flow across the heater tube banks as required (Figs. 4A, 4B, 4C, not shown). A by-pass back pressure valve 62 is provided downstream of the fluid heaters. A fan (30, Fig. 1, not shown) produces an induced draught through the passageway 18. Various other arrangements for the partition 34 enclosing the fluid heaters are described (Figs. 6-10B, not shown).
Patent GB-1041616-A (GB)
Title: Improvements in cutting blades for power operated knife
IPC: B26B7/00
Filed: 1964-06-15
Abstract: 1,041,616. Slicing knives. GENERAL ELECTRIC CO. June 15, 1964 [July 29, 1963], No. 24764/64. Heading A4C. A power operated knife, particularly for meat, bread and vegetables, comprises a pair of counter-reciprocating blades 15, 16 arranged for sliding contact with one another along their cutting portions 15c, 16c, the blades having spaced apart tang portions 15b, 16b which prevent food juices that are moved by capilliary action between the cutting portions 15c, 16c from progressing in to the handle 10 at the tang portions 15b, 16b. The blades carry latching members 19, 20 for releasably securing them to the motor reciprocated connecting members 13, 14. Cutting portions 15c, 16c and tang portions 15b, 16b are joined by divergent portions 26, 27 the forward ends 26a, 27a of which are located exteriorly of the handle 10 in all operational positions. The lower edges 28 of the joining portions 26, 27 are inclined so that liquids gravitate forwardly to a drip point 29. Inclined deflectors (Figs. 1 and 2, not shown) are provided on the outer surfaces of the blades to prevent food from reaching the handle 10.
Patent GB-635682-A (GB)
Title: Improvements in and relating to electrically heated ovens
IPC: H05B3/00
Filed: 1945-09-25
Abstract: 635,682. Heating by infra-red lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 25, 1945, No. 24790. Convention date, Sept. 30, 1944. [Class 39 (iii)] An infra-red lamp oven or tunnel comprises a framework of hollow members supporting panels 191 on which the heating lamps are mounted. The lamp panels 19<SP>1</SP> are hinged at 23 and held by suitable catches to facilitate inspection and lamp replacement. Wiring is contained in the hollow frame member 17 and passes into panels 191 via the hollow hinges 23. The heating lamps are mounted so that natural or forced convection currents cool the lamp bases and provide additional heating of the oven if required. Various angles of lamp mounting are employed to obtain uniform heating of the articles under treatment which may be passed through the oven on a conveyer 42. A fan 40 driven by an electric motor may provide additional cooling air for the lamps through the hollow frame members and panels.
Patent GB-482944-A (GB)
Title: Improvements in and relating to direction indicators for motorcycles and cycles
IPC: B62J6/00
Filed: 1936-09-11
Abstract: 482,944. Traffic signals on vehicles. WORISCHEK, K., and WORISCHEK, H. Sept. 11, 1936, No. 24817. Convention date, Sept. 11, 1936. [Class 118 (ii)] A slidable direction indicator for cycles comprises a tubular member containing a lamp and adapted to be pushed axially outwards by the thumb without releasing the grip on the handlebar. The indicator may be mounted in the end of the handle-bar itself or in an adjoining tube. As shown in Fig. 5 the lamp 27 is held in a tube 20 by the bayonet-fastening of a transparent cap 30 against the action of a spring 33 and the tube is normally drawn inwardly by a spring 34 secured to a fixed plug 19. The tube 20 is provided with a finger-piece 23 for actuation and when it is thrust outwardly the circuit of the lamp is completed at 38 by engagement of an enlargement of a rod 29 fixed to the holder with a live contact sleeve 37. As shown in Fig. 1 the indicator may be arranged in a separate casing 9 secured to the handle-bar 1 by a bracket 6.
Patent GB-532496-A (GB)
Title: Power transmission mechanism for motor vehicles
IPC: B60K5/04
Filed: 1939-09-01
Abstract: 532,496. Variable-speed gearing. GENERAL MOTORS CORPORATION. Sept. 1, 1939, No. 25107. Convention date, Sept. 1, 1938. [Class 80 (ii)] Power transmission mechanism for motor vehicles comprises two gear mechanisms providing alternative driving ratios and each including a servo-operated clutch, the mechanism providing the lower gear ratio incorporating a hydraulic coupling, and the clutches being controlled by a speed-responsive device which selects the higher gear ratio above a pre-determined speed and the lower gear ratio below that speed. As shown, the engine shaft 1, Fig. 2, drives a gear-box shaft 2 carrying clutch members 4, 6, of clutches D, C, respectively The member 4 may be clutched to a gear 10 driving the pro. peller shaft 60, and the member 6 may be clutched to a hollow shaft 34. The latter may drive the gear 10 through a hydraulic coupling T and a one way clutch 18 for a forward drive, or through the coupling T and gearing 16, 32, 27, 28, 26, 23, for reverse driving, depending upon the position of a slider 25 movable by fork 95. The slider 25 may also be placed in a neutral position. The clutch D embodies synchronizing means. The clutches D, C, are operated by compressed air servo-motors M1, M2, the air supply being controlled by an electrically operated valve V, Fig. 9. When the solenoid 175 of the valve V is energized, compressed air passes through the pipe 124 to the cylinder 130 of the motor M1 to throw in clutch D, and then through pipe 122 to cylinder 125 of motor M2 to throw out clutch C. A speed governor G, switches S<1>, S<2>, S<3>, and a solenoid 155 associated with the carburetter throttle arm 151 are electrically connected to a battery B, and the solenoid 175. In operation when the speed exceeds a pre-determined limit, the sleeve 170 of the governor G makes contact at 176 to energize the solenoid to operate the clutches. During the movement, the arm 185 of switch S<2> is in the position shown in Fig. 9 and the solenoid 155 is energized to reduce the engine throttle to idling position to assist in the synchronization action of the clutch D. At the end of the movement the arm 185 is rocked by the shaft 71 to restore the engine throttle to the control of the driver. The accelerator rod 154 which is connected to the carburetter level 151 by a lost motion device 158 has a stop 165 thereon. This stop 165 will move the armature 180 over to the contact 178 when the engine throttle pedal is moved past full throttle position, resulting in energization of the solenoid 175 and down shift from direct to converter drive. Movement of the slider 25 is controlled by a lever 100 embodying a switch S<3> controlled by a button 198. Upon depression of the button 198 the solenoid 175 is energized, and the converter unit T is temporarily relieved from the drive to facilitate the shift of the slider 25.
Patent GB-302420-A (GB)
Title: Improvements relating to the disintegration of clays and similar materials
IPC: E21C47/10
Filed: 1927-09-24
Abstract: 302,420. Newsoni, J. F. Sept. 24, 1927. Parallel ropes and chains with or without widely-spaced cross-connections; tensioning.- Clays delivered by excavators or dredging devices are fed on to an apertured conveyer which allows granular &c. material to pass into screening &c. devices and delivers clay to devices which disintegrate the clay by driving it through the apertures in the conveyer. As shown, the dredge' buckets 1 dump on to a belt 2 formed of spaced wires or cables passing over grooved drums 21, each wire being yieldably tensioned by a sheave 42 connected to an adjustable spring 44. The belt 2 may be replaced by a conveyer comprising spaced transverse slats carried between sprocket chains supported on guides, the parts 7, 8 then being omitted.
Patent GB-403918-A (GB)
Title: Improved method of cutting jacquard cards
IPC: D03C17/00
Filed: 1933-09-12
Abstract: 403,918. Making jacquard cards. CARMICHAEL, D., 219, West Olney Avenue, Philadelphia, U.S.A. Sept. 12, 1933, No. 25255. Drawings to Specification. [Classes 142 (i) and 142 (iv).] In making jacquard cards, one repeat of the pattern with a slight overlap is produced on a perforated zinc sheet by filling certain of the holes with whiting and dextrin. The painted plate is then used as a pattern for punching as many perforated paper sheets as there are repeats in the width of the fabric to be woven. The paper sheets are then placed side by side to make a wide shoot containing the complete pattern. The jacquard cards are then made by a machine reading into the wide paper sheet. After use, the zinc sheet is cleaned for re-use.
Patent GB-336716-A (GB)
Title: Improvements in or relating to electric supply arrangements
IPC: G05F3/06
Filed: 1929-08-19
Abstract: 336,716. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Aug. 19, 1929. Regulation, automatic; supplying consuming devices.-The voltage variations of an alternating current supply to consuming devices, such as radio-receiving sets, are reduced by connecting the load P2 across an inductance x having a highly saturated iron core and connecting the inductance in series with a capacity C1 across the supply P1. A second capacity C2 may be connected in parallel with the inductance and the two capacities may be arranged, as in Fig. 3, in such a way that they may be varied while keeping their sum constant. The total capacity preferably exceeds three-fourths of the maximum value of the magnetization reactance of the inductance. The inductance may be constituted by a transformer or autotransformer and the load may be a thermionic rectifier. The arrangement is adapted to be connected to various supply voltages.
Patent GB-703882-A (GB)
Title: Improvements in or relating to cutting machines for use in mines
IPC: E21C35/06
Filed: 1951-10-30
Abstract: 703,882. Mining machines. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI, GEB. Oct. 30, 1951 [March 8, 1951; April 30, 1951; May 7, 1951], No. 25284/51. Class 68(1) A mining machine in which the cutting tools 2 are positioned ahead of the machine. body 1, to clear a way for the latter, is supported on the floor at several points, preferably three on slide blocks 5, 6, 7 one 7 of which is situated outside the face level with the lowermost cutting tool and to the side thereof. In the case of the three blocks, the rearward pair 5, 6 are on a line extending parallel with the cutting direction of the tools. The height of the blocks with respect to the machine frame is adjustable, so that the machine is supported higher at the rear than at the front. A loader scraper 10 is connected to the rear of the machine by a hinge bolt 6 which is guided in vertical slots 17. In a double-ended machine the cutter heads are slightly inclined to each other and are bent out of the plane of the machine which is provided on the side remote from the face with arms carrying at the outer ends supporting blocks, and there is mounted beneath the machine frame a block, or two interconnected blocks, in such a manner that it, or they, slide from one end to the other of the frame so .that the machine may tilt about the last mentioned block or blocks to bring the operative head parallel to the floor. Wedge assemblies are provided to clean the roof. The supporting block at the side of the cutting- tools has, at the part remote from the face, a rounded front edge and slides over the floor, whilst the part nearest the face does not contact the floor but is provided with an inclined cutting edge for cleaning it.