baber/WOPTO huggingface dataset:
Patent GB-1183542-A (GB)
Title: Improvements in or relating to circuit arrangements for starting and operating electric discharge lamps from alternating current supplies
Inventor: WILLIAMS CHARLES EDINGTON
IPC: H05B41/04
Filed: 1967-09-08
Abstract: 1,183,542. Supply systems for gas discharge lamps. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. 2 Oct., 1968 [8 Sept., 1967; 20 Oct., 1967; 21 Nov., 1967], Nos. 41085/67, 47851/67 and 52896/67. Heading H2H. An operating circuit for a gas discharge lamp, such as a high pressure sodium vapour lamp 1, comprises a circuit having an inductor 3 and a capacitor 5, the resonant frequency of which circuit is higher than the frequency of the A.C. supply 4, a thyristor 7 being connected in series with the capacitor 5 and the lamp 1 connected across the series circuit of the capacitor 5 and the thyristor 7. A diode 6 is connected in shunt with the thyristor 7 in order to allow charging of the capacitor 5 to take place. In operation the capacitor 5 charges gradually towards the peak value of the A.C. supply 4. At a given point the thyristor 7 fires and an oscillatory voltage is produced by the inductor 3-capacitor 5 which voltage is superimposed on the A.C. supply voltage to start the lamp 1. In numerous other embodiments the capacitor may be connected to a tapping-on the inductor which then forms a step-up autotransformer, in which a plurality of thyristors may be connected in series, the diode 6 replaced by a resistor, and a Zener diode connected in the gate circuit of the thyristor. Furthermore, means may be incorporated into the circuit to render the thyristor inoperative when the lamp is running.
Patent GB-1027197-A (GB)
Title: Fuel element loading and unloading device for a nuclear reactor
Inventor: KAPLAN CLAUDE
IPC: G21C19/16
Filed: 1964-12-31
Abstract: 1,027,197. Fuelling reactors. ELECTRICITE DE FRANCE (SERVICE NATIONAL). Dec. 31, 1964 [Jan. 9, 1964], No. 53006/64. Heading G4C. Fuel elements transferred by a grab (not shown) between channels 18 in the reactor core 21 and the entry 42 of a standpipe 2 are guided by a fixed structure comprising tubes 16 leading to individual channels and opening at different positions into a central tube 10 extending from the standpipe. The selection of the desired tube 16 for refuelling a particular channel 18 is made by inserting a selected tubular routing member 26 having a lateral opening 28 communicating with the selected tube 16 and also having a recess 30 for engagement by the grab. The member 26 rests upon an annular abutment 22 secured to the assembly 10, 16 and its correct orientation is assured by providing the abutment bearing surface with two helical portions 32, 32<1> which have over half a turn the same slope as one another but with opposite hands, their ends being common, the lower end of the member 26 being similarly shaped. The tube selection may be alternatively or additionally made by interposing a selected spacing member (Fig. 3, not shown) between the abutment 22 and the member 26, the two ends of the spacing member having helical portions corresponding to the portions 32, 32<1>.
Patent GB-1213366-A (GB)
Title: Air velocity measuring system
Inventor: OBERMAIER ALFRED ARTHUR
IPC: G01F1/46
Filed: 1968-11-11
Abstract: 1,213,366. Measuring fluid flow. ILLINOIS TESTING LABORATORIES Inc. Nov. 11, 1968 [Nov. 13, 1967], No.53308/68. Heading G1R. In an air velocity probe, such as for use in an air velocity measuring system including an air velocity measuring device having an input and an output, comprising a conduit 16, a pair of tubes 20, 21, preferably of D-shaped cross-section longitudinally positioned within the conduit 16 and an air flow control member 28 telescoped in the end of the conduit 16 the arrangement is such that an air stream 38, having a total pressure consisting of velocity and static pressures, enters a passageway 30 and the velocity pressure component 40 is diverted, primarily, by a fixed baffle 36 into the tube 20 and a variable baffle 31 effects a fine adjustment of the air flow 40 to match a pressure indicated by a pilot tube standard. The air velocity component 40 is directed through a transverse aperture 48 into a chamber 54 of a range adjusting switch 12, containing a rubber bushing 54 against which the end 19 of the conduit 16 abuts and passes through a filter 60 into a tube 90 and through a duct 64, by-passing the filter 60, to the downstream side of the baffle 36. A rotatable range switch plate 66, rotated by a spring biased screw 68, is mounted at the lower end of the switch 12 and is provided with a plurality of co-operative pairs of apertures 70, 71, 72, 73 and a control aperture 74, Fig. 6A (not shown) which aperture 74 coacts with a screw 76 for securing the plate in position if needle valve 80 is housed in each aperture 72, 73 and places a different precalibrated resistance in the air stream path and therefore increases the range of the measuring apparatus.
Patent GB-1305100-A (GB)
IPC: G09B5/04
Filed: 1970-11-10
Abstract: 1305100 Recording BORG-WARNER CORP 10 Nov 1970 [24 Dec 1969] 53518/70 Heading G5R In a method of cutting a spiral groove gramophone record having a series of bands of grooves in which each successive groove in a band carries the same message commencing and finishing on the same radial lines and for use e.g. in a teaching machine, each message is initially recorded on magnetic tape, checked and then transferred to a magnetic tape loop rotating in synchronism with a turntable carrying the record from which loop the message is repeatedly transferred to the record cutting head until the required band is formed. During the transfer process the next message is made ready on the first tape so that cutting can be continuous. The first tape 15 is recorded in the arrangement shown in Fig. 1 in which record head 16 is spaced from erase head 18 by a tape path length corresponding to a message length. The recording is commenced by judge 24 issuing a command to message reader 22 and at the same time recording a "stop" tone in a first track of the tape. The message is then recorded on a second track and if judged correct in context and duration a command is issued to commence recording the second message and a "stop" signal is recorded again in the first track. If the message is judged incorrect the "stop" signal is erased by head 18 so that all valid signals to be recorded are preceded by a recorded "stop" tone. The tape is then transferred to a play back unit 32, Fig. 2, forming part of the arrangement for cuttting the disc 72. This is mounted on the turntable 71 about which magnetic tape loop 100 is formed. When cutter head 74 is lowered on to the record, relay 96 is enabled to pass signals produced in reed relay unit 90 in response to passage of a magnet 91 on the turntable to a control and counter unit 54. When the unit 90 indicates that the turntable is properly orientated control relay units 48 and 60 are operated via the unit 54 whereby a first passage on the tape is read by pick up head 34 and transferred via amplifier 38, head unit 40 and recording head 82R to the tape loop 100. At the same time any previous message on the loop is erased by head 82E and the message being recorded is played back by head 82P and applied via amplifier 78 and cutter head 74 to cut the first groove of the band. After one revolution of the turntable the reed switch unit is again actuated by the magnet 91, which action is communicated to control unit 54 and this via control relay 60 switches off the record and erase heads 82R and 82E. Thereafter unit 40 issues a counting pulse each time the message is recorded by head 74 i.e. at each revolution of the turntable and these are counted in unit 54. At the same time tape player 32 advances tape 15 until a stop tone is detected by amplifier 44 and applied to control unit 48 to stop the tape in a position just in advance of the next valid message. When the count in unit 54 reaches the predetermined number of similarly recorded grooves per band it issues a command when the turntable is properly oriented to repeat the process with the next message to be recorded.
Patent GB-1333226-A (GB)
Title: Process for the continuous extrusion of metals
IPC: B21C23/21
Filed: 1970-11-13
Abstract: 1333226 Extruding A E RUNEVALL and B HANSSON 13 Nov 1970 [17 Nov 1969] 54141/70 Heading B3P In a metal extrusion process using a screw press to which the metal is introduced in a molten state, the thread of the screw propels the metal after it has solidified through a zone where the metal is heated by internal friction due to the metal being kneaded. The solidification is caused by a coolant flowing inside the screw, and the kneading is caused by depressions or projections on the thread or core of the screw, Fig. 6. The chamber 4 around the screw also has cooling ducts 10. The metal may be cooled just prior to the die 6, Fig. 1, so that the die effects cold working. The metal may be lead, lead alloy or aluminium.
Patent GB-1101640-A (GB)
Title: Production of monomeric isocyanic acid
Inventor: OERTEL GUNTER
IPC: C01C3/20
Filed: 1965-12-21
Abstract: Monomeric isocyanic acid (HNCO) is produced as a solution in an organic solvent by reacting a hydrogen halide, e.g. HCl or HBr, and a suspension of at least an equivalent amount (chemical equivalent) based on the hydrogen halide of an alkali metal, alkaline earth metal (Mg, Ca, Sr, Ba), or ammonium cyanate in an organic solvent for monomeric isocyanic acid which does not contain any active hydrogen atoms as determined by the Zerewitinoff method and under substantially anhydrous conditions, at a temperature from - 50 DEG to +200 DEG  C., and separating off the resulting solution of monomeric isocyanic acid from the inorganic salts formed, e.g. by filtration. Catalytic amounts, e.g. 0.001 to 0.5% by volume (based on the total volume of the reaction mixture) of water or dimethylformamide may be present.  Organic solvents specified are benzene, toluene, xylene, ligroin, chlorobenzene, trichloroethylene, dimethyl ether, dioxane, acetone and diethyl ketone.  The hydrogen halide may be used as a gas or as a solution in one of the above solvents.ALSO:According to Example 2 (b), n-butyl-a -isocyanato ethyl ether (C4H9.O.CH(NCO).CH3) is prepared by the dropwise addition of n-butyl-vinyl ether at 30-50 DEG  C. to a solution of monomeric isocyanic acid in benzene, p-toluene sulphonic acid being present as a catalyst.
Patent GB-1215198-A (GB)
Title: Process for the production of acetals and ketals of chlorinated aldehydes and ketones, respectively
Inventor: VOGT WILHELM DR
IPC: C07C41/00
Filed: 1968-11-14
Abstract: 1,215,198. α-Chloro-acetals and -ketals; chlorine compounds. DYNAMIT NOBEL A.G. 14 Nov., 1968 [22 Nov., 1967; 16 March, 1968], No. 54179/68. Heading C2C. Acetals and ketals of the general formula are prepared by reacting a compound of the general formula with Cl 2  and with a compound ROH, more than 2 moles of the alcohol being used for each mole of the olefinically unsaturated compound; in the above formulµ R is an alkyl, aralkyl or cycloalkyl radical which is optionally substituted by halogen atoms or alkoxy radicals, R 1  is a hydrogen atom or an alkyl or aryl radical which is optionally substituted by halogen atoms or alkoxy radicals, each of the R 2  groups is a hydrogen atom or an alkyl radical which is optionally substituted by halogen atoms or alkoxy radicals, and X is F, Cl or Br. The process proceeds by the initial formation of a 1,2-dichloro-2-alkoxy compound which then reacts with excess alcohol to form a 1-chloro- 2,2-dialkoxy compound of the given formula. The corresponding 1,1,2-trichloro compounds are formed as by-products. The process is preferably conducted in the presence of acidcombining reagents capable of combining with HX and HCl. The 1,1,2-trichloro compounds may be removed from the α-chloro-acetals and -ketals by dehydrohalogenation of the 1,1,2- trichloro compound by treatment at 10-100‹ C. with an alkaline-reacting agent and then working up the resulting mixture to obtain the α- chloro-acetal or -ketal and the dehydrohalogenation product.
Patent GB-1207008-A (GB)
Title: Improvements in continuous machines for the instantaneous production of whipped cream
IPC: A01J13/00
Filed: 1968-11-20
Abstract: 1,207,008. Dispensing liquids. APAW S.A. 20 Nov., 1968 [20 Nov., 1967; 8 July, 1968], No. 55095/68. Heading A4T. [Also in Division B1] Apparatus for making whipped cream comprises a container 1 for cream and a gear pump 5 feeding a mixture of cream and of air from inlet 4 to a labyrinth E the flow passage in which increases in cross-section, continuously or discontinuously, in the direction of flow. The product is discharged by a cock C the piston P of which operates the pump switch SW. In one embodiment of the labyrinth mixing device it has a conical core 8, Fig. 5, having circumferential annular grooves, and lands which are normally maintained in contact with the bore of the housing 7 by a spring 9; in operation the core is axially displaced by the mixture pressure to create a clearance. The core 8 may have cylindrical ends 308, 408 the ribs 118, 218 of which have interruptions to provide a sinuous flow path (see also Figs. 6 and 7, not shown). In another embodiment, Figs. 8-10 (not shown) the mixer consists of a stack of discs with indented faces to allow flow between them, alternate discs having clearances at the centre and periphery to provide a sinuous path. In a modification (Figs. 11-13, not shown) the labyrinth consists of co-axial interfitting cylinders with indented surfaces, flow taking place up and down between the cylinders and round the ends of alternate ones.
Patent GB-1166639-A (GB)
Title: Improvements in or relating to Indexing Mechanisms
IPC: B23Q16/06
Filed: 1966-12-08
Abstract: 1,166,639. Indexing mechanism. CTS CORP. 8 Dec., 1966 [8 Dec., 1965], No. 65111/66. Heading B3T. [Also in Division F2] An indexing mechanism e.g. in a turret lathe or for a work-table for the assembly of electronic components comprises a rotary member or dial having a series of equally spaced roller followers disposed around the periphery thereof and arranged to co-operate with a cam which is rotatable to index the dial and which in the course of each revolution is moved axially to bring part thereof into and out of engagement with the followers. The cam 21 has portions at two levels and includes a cylindrical portion 26 which is of sufficient diameter to bear on two adjacent roller followers 12a, 12b to lock the dial during part of the rotation of the cam, a cut-out portion 26a into which the middle roller of a set of three roller followers can project to allow the cam to be moved axially towards the dial for indexing which is then effected by the cam portion 27. Axial movement of the cam 21 towards and away from the table is effected in suitably timed relation to the rotation thereof by means of a fixed roller cam 24 and follower 25 the latter rotating with the drive shaft 22 on which the cam 21 is mounted.
Patent GB-1141190-A (GB)
Title: Improvements in or relating to pneumatically-operated shuttle-conveying systems
IPC: B65G51/32
Filed: 1967-12-05
Abstract: 1,141,190. Pneumatic conveyers. SIEMENS A.G. 5 Dec., 1967 [6 Dec., 1966], No. 55271/67. Heading B8A. [Also in Division F2] A device adapted to be selectively usable as an intermediate station, a transmitting station or a receiving station in a pneumaticallyoperated shuttle-conveying system comprises a housing 1 having travel tube connections 2, 3 which are in line on opposite sides thereof a pivotally mounted drum with two tubes 5, 6 diametrically opposite each other and a deflection component 10 on an exit flap 9 loaded by a tension spring 11. An air-tight dispatch flap 4 is provided. In the position shown in Figs. 1(a), 1(b) the device acts as an intermediate station or a transmitting station, tube 6 being in line with the connections 2, 3. By means of compressed air a shuttle is thus fed unimpeded through the station. When operating as a transmitting station tube 5 is in line with the flap 4 and a shuttle 27 may be introduced therein by a manner not indicated. With the aid of a selector device (not shown) at the station another station in the system is selected as the destination. A solenoid (15), Fig. 3 (not shown), is operated twice in a manner to index the drum through two steps, each of 90 degrees (see Division F2), tube 5 occupying the position of tube 6 in Fig. 1(b), and holding down the flap 9 in its turn. The compressed air blower (not shown) is then started and the shuttle 27 fed to its destination and extracted there. The compressed air forces the flap 9 against elastic surround 12 of exit aperture 8. To act as a receiving station the drum is indexed by one step of 90 degrees from the position shown in Fig. 1(b), to the position shown in Figs. 2(a), 2(b). A shuttle arriving through the tube 2 is deflected by the component 10 to strike the elastic surround 12 and to drop into a catcher container (not shown). After the shuttle 28 has been fed out the drum is indexed a further 90‹ so that the flap 9 is closed by tube 5 or 6. A toggle 13 on the drum spindle 7 locks the flap 4 when the device is set for receiving, so that shuttles cannot then be inserted into the housing 1.
Patent GB-1213477-A (GB)
Title: Ignition timing devices for internal combustion engines
Inventor: SAUVIGNET HENRI
IPC: F02M63/00
Filed: 1967-12-06
Abstract: 1,213,477. Ignition systems; timing ignition. COMPAGNIE DES COMPTEURS. Dec.6, 1967 [Dec. 13, 1966], No.55462/67. Heading F1B. An ignition timing device for an internal combustion engine comprises current producing means for supplying an electrical current to a capacitance commencing at an instant when the piston reaches a predetermined position, the valve of the current being proportional to w (a+ bw), where w is proportional to the speed of the engine and a and b are constants, and threshold means for producing an ignition signal in response to the voltage on the capacitance reaching a threshold value. As shown the circuit includes three transistors T 1 , T 2 , T 3  arranged to be cut off when the piston reaches a predetermined position. Connected across capacitor C is a threshold device ST which may be for example a unijunction transistor Schmitt trigger, tunnel diode or the like, which acts wherever the voltage across the capacitor C reaches the triggering voltage V s  of the device ST, to produce a spark, through the agency either of transistors which interrupt the primary current of an ignition coil or of thyristors permitting a capacitor to discharge across the primary of an ignition coil.
Patent GB-558497-A (GB)
Abstract: 558,497. Sparking plugs. GENERAL MOTORS CORPORATION. July 15, 1942, No. 9816. Convention date, Aug. 22, 1941. [Class 7 (iv)] [Also in Groups XXIII and XXXVI] For eliminating interference with radio reception or for minimizing wear on the electrode, a resistance 30 included in the insulator assembly is formed of a mixture of a readily fusible glass and a conductor of electricity and is thermally bonded to the insulator 14. The resistance 30 may be composed of boro-silicate glass (27.5 per cent.), boro-magnesia glass (25 per cent.), boron carbide (37.5 per cent.), tungsten carbide (10 per cent.) and a binder such as a hydrogenated cotton-seed oil (3 per cent.). Metallic boron may be used in place of tungsten carbide. The insulator 14 may be of the sintered oxide type consisting of aluminium oxide alone or with oxides such as those of magnesium or beryllium or silicates such as mullite, or may be composed of porcelain and glass containing mullite, zircon or zirconia. As shown, the electrode part 20 consists of a nickel-alloy tube 22 filled with copper 24 or other good conductor and is shouldered at 26. The resistance 30 may be connected to the parts 20, 34 directly or by conducting seals 28, 29 comprising powdered copper and glass fused in place. A suitable composition consists of copper, 55 parts, boro-silicate glass, 45 parts, and a binder, 3 parts. Carbon in the form of graphite or carbon black may be added. In assembling,. the assembly is heated to cause the glass to flow and pressure is applied to the electrode part 34. In a modification, Fig. 2, the electrode part'34 is provided with an inverted cup 35 engaged by the seal 29. Specification 494,701 is referred to. Reference has been directed by the Comptroller to Specification 548,841.
Patent GB-1378165-A (GB)
Title: Blast furnaces
IPC: C21B7/20
Filed: 1971-12-02
Abstract: 1378165 Charging blast furnaces J WIECZOREK 2 Dec 1971 [4 Dec 1970] 56013/71 Heading F4B Apparatus for charging a high pressure blast furnace comprises storage bins 12 and 13 controlled by upper flap valves 10 and 11 and lower flap valves 16 and 17, rotary feeders 14 and 15 controlling the rate of discharge and a rotary distributing shoot 19 extending from frustoconical hopper 18 mounted rotatably in the furnace throat, said shoot being inclined at an angle of 40-50 degrees to the vertical. The bins 12 and 13 are disposed between and supported by the waste gases offtakes 23 and three-way valves 24 and 25 enable the bins to be put under pressure from the off takes or vented to atmosphere. Operation of the shoot produces a crosssectional contour of the furnace charge which is M-shaped. In modifications (Figs. 9 and 10) which incorporate two and three distributing shoots, the respective contours produced are 2M and 3M shaped (Figs. 1-4). In all the constructions, each shoot is associated with two bins which may be formed by appropriately dividing a single cylindrical casing. The hopper 18 and shoot 19 may be water cooled. The wide variety of possible charging steps allowing for the many blast furnace parameters may be programmed by an industrial process computer.
Patent GB-1208728-A (GB)
Title: Laundry folding device
Inventor: WEIR HENRY JOHN
IPC: D06F89/00
Filed: 1966-12-19
Abstract: 1,208,728. Folding sheets. H. J. WEIR. 15 Dec., 1967 [19 Dec., 1966], No. 56811/66. Heading D1S. Apparatus for folding a sheet comprises a conveyor 1 consisting of a number of spaced continuously moving bands; raising means 2 at a fold position on the conveyor 1 for raising the sheet from the conveyor 1 at a fold line in the sheet transverse to the direction of travel; timing means effective to activate the raising means 2 when a desired fold line is at the fold position, Fig. 2 (not shown) clamping means 3 disposed above the conveyor 1 and actuated to clamp the sheet at the fold line when it is raised, Fig. 3 (not shown), the position of the clamping means 3 being such that the trailing part of the sheet is drawn by the conveyor 1 beneath the clamped fold line to lie under the leading part of the sheet, Fig. 4 (not shown); and release means to release the clamping means 3 to drop the sheet when the trailing part thereof has been so drawn forward, Fig. 5 (not shown). The raising means 2 comprises a set of fingers constituted by curved metal tubes flattened at their ends and mounted to be normally disposed beneath the upper run of the conveyor 1 but projectable upwardly between the bands thereof by a pneumatic ram 7 through a linkage 8 pivoted at 9. The clamping means 3 comprises a pair of plates each movable by a pneumatic ram 4 and each mounted on a support 5 pivoted at 6. The timing device is similar to that described in Specification No. 1,081,871 and is actuated by the sheet passing a microswitch S1. An electrical circuit diagram, Fig. 9 (not shown), for the apparatus is described. In modifications (not shown), (a) the raising means comprises an air jet arrangement, (b) the raising means comprises a vertical plate having upstanding fingers thereon and (c) one of the plates 3 is fixed and the other movable.