baber/WOPTO huggingface dataset:
Patent GB-475006-A (GB)
Title: Electric incandescent lamp, and a luminous body especially adapted for use in such lamp
IPC: H01K1/50
Filed: 1936-11-16
Abstract: 475,006. Destructible cores. LONN, E. I. Nov. 16, 1936, No. 31278. Convention date, Nov. 16, 1935. [Class 83 (iv)] [Also in Group XI] A triple spiral body or filament, especially for electric incandescent lamps for common illuminating purposes is wound upon successive mandrels of diameters so proportioned that the ratio of the diameter d of the filament to the core diameter D<1> of the primary spiral is within the limits 1:0À9-1À8, and the ratio of d to the pitch P<1> of the primary spiral is within the limits 1 : 1À6-2À2; the ratio of d to the core diameter D<2> of the secondary spiral is within the limits 1 : 3 -5À2, and its ratio to the pitch D<2> of the secondary spiral is within the limits 1: 5À4-7À8; while the ratio of d to the core diameter D<3> of the tertiary spiral is within the limits 1 : 8À5-19, and its ratio to the pitch P<3> of the tertiary spiral is within the limits 1 : 15-32. In an example, the ratio d : D<1> : D<2> : D<3> is 1 : 1À4 : 3À7 : 11, with corresponding pitch ratios d : P<1> : P<2> : P<3> having the value 1 : 1À8 : 6À5 : 26. All the spirals are preferably formed with the cores still retained in position, the choice of core material depending on the heat treatment required. Cores of refractory metal such as molybdenum are used when, together with the filament, they are heated to a temperature exceeding 1600‹ C., whereas the primary and secondary cores may be of steel, nickel or the like, and the tertiary core of refractory metal when a heat treatment at a lower temperature is given to eliminate mechanical stress, the first two cores being removed by acid before the final heating at high temperature and subsequent removal of the refractory core by drawing it from the completed filament. The spirals may be wound in different or similar directions ; in the example they are all in the same direction. Reference has been directed by the Comptroller to Specification 456,760, [Group XI].
Patent GB-1398839-A (GB)
Title: Teleprinters
IPC: H04L9/18
Filed: 1958-09-30
Abstract: 1398839 Data transmission; ciphering systems SIEMENS AG 30 Sept 1958 [30 Sept 1957] 31283/58 Heading H4P In a teleprinter with an enciphering or deciphering device, a circuit for mixing a plain-language or cipher message with a cipher key is arranged so that the setting of its contacts does not disturb any flow of current, so that detection of the plain message or key by the interference voltages produced is avoided; printer and punching device magnets are balanced so that the current they take is the same as marking and spacing positions. Fig. 7, shows a teleprinter set to receive an enciphered message. MTB is the middle of the telegraph battery, i.e. earth. A received start pulse operates contact er or relay ER to start the receiver distributer, incoming pulses are explored and the results stored in capacitors EC1-EC5. The capacitors are then discharged through relays ESK1-ESR5 controlling pairs of contacts in five mixing circuits, one for each significant pulse. In the first mixing circuit contacts esr1a and esr1b are set by ESR1, and sa1 by a cipher-key punched tape. A central switch ZKe is then closed, allowing current to flow to operate printer magnet DM1a or DM1b and punching device magnet LM1a or LM1b. In transmission, switch lk1 is controlled by a plain language punched tape or tk1 by a keyboard and sa1 by a cipher-key tape. When these are set current flows through a central switch ZKl to ZKs to printers and to a transmitter storage relay SSR1 having contacts ssr1a and ssr1b which control voltage stored in capacitor SC1. Pulses are then transmitted successively by a transmitter distributer through a transmitter relay SR with a contact sr, start and stop pulses being added, over line Ltg. The central switches ZKe, ZKl, ZKs are operated by the appropriate distributer. The circuit also includes: a send-receive switch with contacts (in the first mixing circuit) S/E1a, S/Elb, S/E1c and S/Ed; a manual switch S1a, S1b for the punching device; a manual switch V/Kl1 for plain or cipher operation; and a manual switch LE/E1a LE/E1b for "local deciphering". Also described are double current circuits with polarized relays or rectifier arrangements, and a general arrangement of a teleprinter for universal operation.
Patent GB-1510243-A (GB)
Title: Transducer switching system
IPC: H04R1/10
Filed: 1976-07-27
Abstract: 1510243 Transducer switching system ELECTRONIC ENG CO OF CALIFORNIA 27 July 1976 [2 April 1976] 31301/76 Heading H4J In a transducer switching system, when an acoustic connector (such as a stethoscope type headset for a listener) is inserted into an enclosure housing a transducer, a switch is changed from its normally open state to a closed state, thereby shorting out a resistor in a circuit and allowing an effective level of electrical power to operate the transducer. Sound from a moving coil transducer 3 (Fig. 4) passes into a chamber 4 (Fig. 1) in a cylindrical body 2 and through an orifice 5 into a cylindrical cavity 6. A male acoustic connector 7 has an opening connected to a stethoscopic tubular headset (not shown). A plug 10 within cavity 6 is urged against a shoulder 8 by a spring 9 to acoustically seal the chamber 4 from the cavity 6. When the connector 7 is fully mounted into the cavity 6 it displaces the plug 10 downwardly against the spring 9 to permit sound from the orifice 5 to pass through the cavity 6 into the headset. The spring 9 has a lower central portion 11  that rests upon a fixed contact 12 (Fig. 4) on a printed circuit board. When downward deformation occurs, the first large diameter portion of the spring 9 touches an annular contact 15. This closes the switch formed by the contacts 12 and 15 and shorts a resistor 18 from a circuit including a signal generator source 19 and the moving coil transducer 3. The resistor 18 is in circuit when the system is not used and under this condition the transducer 3 is not significantly powered and thus its life is prolonged. Two such arrangements are combined in a stereophonic system (Fig. 3, not shown).
Patent GB-957319-A (GB)
Title: Improvements in or relating to address signalling arrangements
IPC: H04M1/515
Filed: 1961-08-31
Abstract: 957,319. Subscriber's number sending devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 31, 1961 [Sept. 3, 1960], No. 31385/61. Heading H4K. A subscriber's digit sender comprises a transistor cut-off by the charge on a condenser, which is then caused to discharge through a time constant circuit dependent on the digit to be sent, whereupon the transistor becomes conductive again. A differentiating circuit in the output of the transistor circuit thus produces pulses separated by an interval indicative of the digit to be sent. As shown operation of the hook-switch H charges reservoir condenser C 3  over the line L 1 , L 2  from the exchange battery and with transistor TR conducting condenser C 1  is charged with its right-hand plate positive. When a digit key is pressed to and one of keys t 1  . . . t 10  are closed whereupon the charge on C 1  cuts off TR to produce a negative pulse over condenser C 2 . Condenser C 1 , under the influence of the reverse polarity now applied over t 0 , discharges in a time determined by the value of the resistance switched in by the particular one of keys t 1  . . . t 10 . When the charge on C 1  reaches zero (or becomes slightly negative) transistor TR conducts again to produce a positive pulse over C 2 . When the key is released with t 0  open C 1  charges positively in preparation for the sending of the next digit. It is to be noted that two keys, e.g. t 1  and t 6 , are appropriate to each time constant. However, the push buttons for the two keys are arranged to operate a further contact t 11  to close one or other of contacts d, e to effect discrimination. Thus with contact d closed the pulses from condenser C 2  are applied directly to line, and with e closed they are applied via a polarity inverting transformer S. This transformer may be part of the substation anti-side-tone circuit. To prevent the condenser C 3  from interfering with the normal operation of the circuit a resistance may be included in series with it, said resistance being short circuited during signalling.
Patent GB-314079-A (GB)
Abstract: 314,079. Kessler, J., and Fischer, G. June 22, 1928, [Convention date]. Matches.-A container for the dipping mass in match-making machines in which the dipping table moves vertically up and down is provided with channels along its walls, the channels being clear of the dipping table. The channels are arranged to guide the dipping mass as it is displaced during the motion of the table so as to cause it to circulate in a circumferential direction round the container. The container 1, which may be portable, has bottom surfaces 3, 4, inclined towards its longitudinal axis. Around its sides are ribs 8 all inclined in a similar direction. The dipping table 5 is similar in shape to the container, and is lowered into it so as to clear the ribs 8. During the downward motion of the table, the dipping mass rises in the channels 9 between the ribs and overflows the tops thereof, and during its upward motion the mass sinks down the channels again. It thus has a continuous circumferential motion as indicated by the arrow in Fig. 3.
Patent GB-790662-A (GB)
Title: Improvements in and relating to supporting working platforms on scaffolding
Inventor: HILLAND SVERRE
IPC: E04G1/20
Filed: 1955-11-03
Abstract: 790,662. Scaffold - staging supports. COMLEY & PITT, Ltd. Nov. 3, 1955, No. 31433/55. Class 20(2) [Also in Group XXX] A device for climbing or descending a scaffold pole and described particularly with reference to a vertically adjustable support for scaffold planks comprises a pair of brackets 1, 2 which straddle the scaffold pole (not shown) the brackets having a pivoted extension 6 with an end stop 9 for supporting the scaffold planks and being adapted to be wound down the scaffold pole 'by a rotatable gripper 17. The brackets have a fixed upper pin 3 and a removable pin 4 to guide the device on the scaffold pole during adjustment and, at the lower end of the device, a stirrup 12 with pole engaging square-bar grippers 10, 11 is urged clockwise into locking engagement with the pole by a spring 16 carried by a pivoted stirrup 14. The device is caused to climb the pole by raising a lever 25, e.g. by a toe stirrup 27. the lever being pivoted at 26 and coupled to a stirrup 22 which is pivoted to a stirrup 19 in similar manner to the stirrups 12, 14. The stirrup 19 has one fixed square gripper bar 28, but the complementary gripper is in the form of a twisted square bar 17 provided with a crank 20 and is longitudinally movable in its bearings either to become fast with the stirrup or to be free. when the crank can be rotated to wind the device ,down the scaffold pole.
Patent GB-1127267-A (GB)
Title: Process and apparatus for drying sludge such as sewage sludge
IPC: C02F11/13
Filed: 1967-07-07
Abstract: 1,127,267. Drying sludge. W. LUDIN. 7 July, 1967 [12 July, 1966], No. 31498/67. Heading F4G. A process for drying sludge comprises drying in a thermal drying plant producing a watervapour-containing waste gas, wherein heat contained in the waste gas of the plant is used partially to dewater the sludge in a partial-pressure evaporator to which the sludge is fed prior to introduction into the drying plant. The waste gas from a drying plant substantially as described in Specification 1,097,846, viz a rotary drum drier 2 heated by a furnace 1 and cyclone separator 6, is fed to an air preheater 10 and thence both to a partial-pressure evaporator 12 containing sludge 12a and sludge preheater 11. The sludge is recirculated through lines 13, 14 from the heater to the evaporator and vice versa with fresh sludge being introduced into the line 14 and partially de-watered sludge is withdrawn from the evaporator through a line 17 to a mixer 4 for mixture with sawdust or the like absorbent carrier material prior to entry into the drier 2.
Patent GB-507756-A (GB)
Title: Improvements in or relating to the drying of grass or the like
IPC: F26B21/00
Filed: 1937-11-16
Abstract: 507,756. Drying grass &c. KALOROIL BURNERS, Ltd., GOLDBERG, A., and SLADE, R. E. Nov. 16, 1937, Nos. 31531/37 and 24869/38. [Class 34 (ii)] Grass and other vegetable material is dried on a perforated tray 5 through which hot air rises 1 foot per second measured at 20‹ C. The grass is fed 2-3 feet deep on the tray, which has holes of 1/16''-1/4'' diameter forming about 10 per cent of its area, so that the air resistance of the tray is about half that of the grass, and the air resistance of the tray and grass is about one-third of the total resistance of the system. The air speed is kept constant. Burnt gas from a coke furnace 1 and fresh air are drawn at 250‹ C. by a fan 3 through a duct 4 to below the tray 5, which is of metal but has brick or concrete sides 6. When nearly dry the grass has shrunk, and another layer is then placed on wire netting or sheep hurdles on the top thereof. A third layer may be added in turn, and drying is continued until gas leaves at the top at 120‹ C. and the layer is 2-3 feet thick. The layers may be mixed before drying is complete. Grain may be dried in a layer 6" deep.
Patent GB-1531246-A (GB)
Title: Mine roof support control systems
IPC: B66F3/24
Filed: 1975-07-29
Abstract: 1531246 Mine roof support control system GULLICK DOBSON Ltd 28 Oct 1975 [29  July 1975] 31625/75 Heading E1P A control system for a self advancing mine roof support comprises remote signalling means 18 or 20 located externally of the support for generating coded electrical signals representing different operative functions of the support and means for supplying the signals to the support and, at the support, a function selection hydraulic valve la responsive to the coded signals which assumes the state represented by them, means 14 for generating other coded electrical signals representing the state of the valve, and means 15 for comparing the coded signals to determine whether the valve is in the required state or not. The valve la is driven by an hydraulic motor 2 when a solenoid valve 12 receives a signal from the comparator 15 and is rotated until the two coded signals are-the same. The implementation of the operative function is dependent upon an enabling signal from a deadman's handle 26 associated with the remote signalling means. An electronic logic circuit 24 using AND and OR gates ensures that the roof support can only be controlled from one at a time of the two remote signalling means 18, 20 mounted on adjacent roof supports. In a modification, Fig. 2 (not shown), the solenoid valve is replaced by an electric motor which controls the operation of the hydraulic motor.
Patent GB-316398-A (GB)
Abstract: 316,398. Goldbeck, H. L. June 28, 1928. Ready-reckoning apparatus.-A drum carrying columns of products is rotatable within a slotted easing to bring a desired column into view, by means, of flexible cords secured to a rectilinearlv settable finger-piece. The drum 1 supported within the fixed casing 35 is rigid with a pulley 10 carrying internally two rotatable pins 16, Fig. 5, serving to anchor the ends of cords 18 guided by another pin 15 at the exit from the pulley. The cords after passing around the pulley are led around guide pulleys 26 and secured to a finger-piece 22 slidable along a channel 20 in the base 6. An index 28 secured to the finger-piece moves over a removable scale 33 of wage rates corresponding with the columns on the chart. One or a pair of spring detents arranged on the underside of the index co-operates with holes 31 to hold the finger-piece when set. The hours scale is carried by a slotted plate 38 removably held by guides 39 flanking the view slot in the casing. Instead of a chart a number of removable scales may be carried by the drum. Modifications in the mounting details of the drum are described and in Fig. 14 is shown a detent mechanism for holding the drum in adjusted position. This mechanism comprises a plate 140 guided on the base by pins and slots 138, 139 and pulled rearwardly by springs 143. A stud 142 carried by the plate thus tends to enter one of a number of recesses 134 formed in a flange 133 on the lower end of the drum.
Patent GB-406814-A (GB)
Title: Improvements in laundry washing machines
IPC: D06F15/00
Filed: 1932-11-10
Abstract: 406,814. Washing - machines. MAc- DONALD, J., Drummossie, Golf Course, Girvan, Ayrshire. Nov. 10, 1932, No. 31734. [Class 138 (ii).] In a combined washing and wringing machine wherein an open-topped wash-tub A, rotated on a vertical axis with a plunger j<7> reciprocated therein, and a wringer W are carried by the same framework and driven from the same drive shaft g, the plunger, which is provided with an upstanding annular sleeve j<9>, is secured to a screw j<6> which works in a nut on a link k<4> adjustably secured to an arm j<5>. The screw is locked by a lock nut k<1> and the arm j<5>, which is provided with a vertical cranked portion j<2> slidable in bearings j<3>, j<4>, is secured in a lug k<2> by a screw k<3>. The bearings j<3>, j<4> are carried by a vertical bar j which is reciprocated by an eccentric g<1> on the shaft g engaging a roller i on the free end of a spring i secured to a lever h pivoted to the frame at h<1> and to the bar j at j<1> a radius rod h<3> being pivoted to the bottom of the bar j. The bar j may be held stationary at the top of its stroke by the engagement under the radius rod of a roller l<3> operated from a lever l and the plunger may then be swung from the tub by releasing the screw k<3> and swinging the arm j<5>. The turntable b on which the tub is placed is driven through bevel gear f and spur gearing b<6>, b<5>, the shaft of the pinion b<6> being carried by a bracket d which can be manually moved so that the pinion is either in gear or out of gear with the spur wheel b<5>. The shaft g is driven from an electric motor E through double belt reduction gear n, n<3>, the tension of each belt being independently adjusted by screws and springs o, o<1>. The wringer is put into driving connection with the shaft g by depressing a pedal s<5> which pulls down a lever p<8> carrying a combined belt pulley and pinion s which is engaged by a pinion p' driven from the shaft g through bevel gear. In the elevated position of the lever p<8> the belt pulley is clear of the belt s<2>, which is part of the transmission to the wringer, but on depressing the pedal the pulley s grips the belt to transmit the drive.
Patent GB-1341809-A (GB)
Title: Phenanthridine derivatives
IPC: C07D221/12
Filed: 1972-07-06
Abstract: 1341809 Phenanthridine derivatives RHONEPOULENC SA 6 July 1972 [8 July 1971] 31773/72 Heading C2C Novel compounds of Formula I (wherein the symbol A represents a straight- or branched-chain alkylene radical containing 1 to 5 carbon atoms, and the symbols R 1  and R 2  each represent the same or a different alkyl radical containing 1 to 5 carbon atoms, or the symbols R 1  and R 2  together with the nitrogen atom to which they are attached represent a 5- or 6- membered mononuclear heterocyclic group, optionally containing a second hetero atom selected from nitrogen, oxygen and sulphur atoms) and acid addition and quaternary ammonium salts thereof are prepared by reacting a compound of formula wherein R 3  is alkyl containing 1 to 3 carbon atoms or an acid addition salt thereof with an amine of H 2 N-A-NR 1 .R 2 . Intermediate of Formula III above, where R 3  is methyl, is prepared by methylating the mercaptan (III R 3  = H) obtained by cyclization of the compound prepared by reacting o-phenylanaline with thiophosgene and sodium hydroxide. Pharmaceutical compositions in conventional forms for oral, rectal, parenteral and topical administration and having anti-arrhythmic activity comprise an above novel compound or salt thereof and a carrier or diluent.
Patent GB-317797-A (GB)
IPC: C08G63/20
Abstract: 317,797. British Thomson-Houston Co., Ltd., (Assignees of Kienle, R. H.). Aug. 22, 1928, [Convention date]. Ester condensation products.-Alkyl resins are produced by the condensation of glycol or other dihydric alcohol and a polyhydric alcohol, such as glycerine, with a polybasic acid or anhydride. In the examples, (1) phthalic anhydride, glycerine and glycol are heated gradually to 240‹ C.; (2) a similar mixture, is employed containing diethylene glycol instead of glycol; propylene glycol can be used similarly; (3) phthalic anhydride, glycerine, glycol, and the fatty acids from linseed oil are heated together. It is stated that other polybasic acids may be used such as succinic, citric, benzoic, and salicylic acids. Specification 299,424 is referred to. Reference has been directed by the Comptroller to Specification 305,965.
Patent GB-405768-A (GB)
Title: Short wave radio apparatus
IPC: H03J3/10
Filed: 1932-11-10
Abstract: 405,768. Adjusting wireless apparatus ; inductances. FAIRWEATHER, H. G. C., 65, Chancery Lane, London.-(Hazeltine Corporation ; 15, Exchange Place, Jersey City, New Jersey, U.S.A.) Nov. 10, 1932, No. 31850. [Class 37.] Fig. 1 shows a short wave supersonic heterodyne converter, operating in conjunction with a normal broadcast receiver 57 over wavebands of 163-72, 79-33 and 35-15.5 metres and the Specification gives detailed constructions of the coils and components used. The tuning coil 16 adapted to be short-circuited in two sections and the twosection continuously rotatable tuning condenser 21 is provided with three scales and scale lights 71a ... 71c to indicate the wave range in use. Fig. 9 shows the construction of the oscillator tuning coil 40 and Fig. 10 the associated feed-back coil 42 and coupling coils 44, 45 to the cathode of the detector 17.
Patent GB-488825-A (GB)
Title: Improvements relating to water-tube steam generators
IPC: F22B31/04
Filed: 1937-11-19
Abstract: 488,825. Water-tube boiler furnaces. FOSTER WHEELER, Ltd. Nov. 19, 1937, No. 31898. Convention date, Nov. 19, 1936. [Class 51 (i)] [Also in Group XIII] The hot gases from pulverized coal, or liquid- or gaseous-fuel burners 37 at the front of combustion chambers at the sides of a vertical water-tube boiler 14 flow horizontally towards the rear of the chambers and then back and around walls 32 between the chambers and the water-tubes. The gases first pass through a water-tube slag screen 34 and then flow forwardly over looped superheater tubes 30 and the boiler tubes 14. Downcomers 25 between groups of boiler tubes are shielded by refractory material. The furnace walls are cooled by water tubes 36. The burners are supplied with secondary air from a casing 40 having outlet passages 41 above and below the burner nozzles.
Patent GB-189991-A (GB)
Title: Improved depth, draught and displacement indicator
IPC: B63B39/12
Filed: 1921-11-29
Abstract: 189,991. Alexander, W. Nov. 29, 1921. Draught, determining.-In draught-indicating apparatus such as described in Specifications 29105/09, 144,423 and 150,209 of the type in which the pressure of the head of liquid is balanced by gas pressure indicated by a pressure gauge, the zero of the. gauge is tested and indicated simultaneously with the source of gas pressure being put into communication with the water of flotation. The controlling-valve comprises a pair of ported barrels 4 rotating in unison. At the. preliminary setting of the valve, the port 79 is brought into connection with the pipe 7 fed by the source of compressed air and also in communication with the pipe 9 which leads to the bottom of the liquid-containing tank. Simultaneously the source of pressure is in connection through the port 79, 96 and the pipe 6 with the head of the indicating-column in the gauge-glass 2 and also with the other end of the column through the port 65 in communication with the gauge reservoir. In the other operative position of the valve, shown in Fig. 5, the pipe 9 connects with the gauge reservoir to transmit the pressure of the head of liquid to the indicating-column through the ports 79, 96. The head of the column is simultaneously in communication either with the atmosphere, or in the case of a pressure feed tank, with the top of the tank by way of the pipe 6, port 68, and pipe 8.