baber/WOPTO huggingface dataset:
Patent GB-857326-A (GB)
Title: Acoustic siren for generating wide band noise
IPC: G10K7/02
Filed: 1959-07-10
Abstract: 857,326. Sirens. PAM ASSOCIATES Inc. July 10, 1959 [July 11, 1958], No. 23703/59. Class 13. Wide-band noise is produced by the random disturbance of a jet stream from a nozzle 7 by means of one or more rotors. As shown, four overlapping rotors 1, 2, 3, 4 are driven at varying and irrationally related speeds by a variable-speed motor 11. Alternatively, the four rotors may be driven by four individual motors whose speeds are controlled by four potentiometers driven by a fifth motor. Each rotor incorporates a plurality of randomly spaced arcuate slots having randomly selected lengths.
Patent GB-934923-A (GB)
Title: Herbicidal, fungicidal and nematocidal compositions
IPC: A01N47/46
Filed: 1962-06-20
Abstract: Herbicidal, fungicidal and nematocidal compositions comprise a mixture of methyl isothiocyanate and a dichloroisobutylene and an inert solid or liquid extender or diluent.  Specified liquid diluents are aliphatic or aromatic optionally halogenated hydrocarbons, e.g. 1,2-dichloropropane, 2,3-dichloropropane, aliphatin I and II, xylene, carbon tetrachloride; ketones; alcohols and ethers.  Specified forms are solutions, emulsions, dusts or wettable powders.  Specification 767,752 is referred to.
Patent GB-746061-A (GB)
Title: Improvements in or relating to the manufacture of tantalum powder
Inventor: COLLENDER HAROLD FFYNER
IPC: C22B34/24
Filed: 1953-08-28
Abstract: A process for the production of tantalum powder comprises subjecting a tantalum powder to physical conditions which will remove gaseous impurities, allowing the powder to absorb hydrogen, disintegrating the powder to a fine state, subjecting the fine powder to physical conditions sufficient to remove the adsorbed hydrogen and allowing the powder to adsorb an inert gas.  The gases may be removed by heating the powders by eddy currents in a molybdenum crucible to 1700-2000 DEG C. under a pressure of 10-5 m.m. of mercury.  Hydrogen or the inert gas, e.g. argon or dry air, may be added to the vacuum chamber which is allowed to return to atmospheric temperature and pressure.  The powder finally produced is stated to be particularly suitable for the production of capacitors.
Patent GB-1350626-A (GB)
Title: Cell for mos random-access integrated circuit memory
IPC: G11C11/405
Filed: 1971-04-19
Abstract: 1350626 MOS memory cells INTEL CORP 19 April 1971 [13 March 1970] 23931/71 Heading H3T A voltage (" 1 ") on line 43 is stored on C34 when FET 30 is turned on by line 45; the stored voltage turns on FET 41 so that when a FET 42 in series with it is turned on by line 46 a path is made for a " 1 " voltage applied to line 43 during the read cycle to be discharged to the earth voltage on, or to charge up, the line 44. If a " 0 " voltage is stored, FET 41 cannot conduct. The connections between the series pair 41, 42 and their respective lines 44, 43 may be reversed (Fig. 3, not shown). Alternatively (Fig. 4, not shown), the FET whose gate is controlled by the stored voltage (71) may be connected to a common line at Or (81), which discharges a " 1 " voltage to which the read line 82 has been charged during the read cycle.
Patent GB-185428-A (GB)
Title: Method of signalling over telephone conductors fitted with intensifiers with a signal current of high periodicity
IPC: H04J1/14
Filed: 1922-09-04
Abstract: 185,428. Siemens & Halske Akt.-Ges. Sept. 5, 1921, [Convention date]. Manual exchange systems; repeating and amplifying systems.-Low-frequency calling or other signalling currents are superposed on a carrier-wave whose frequency lies in the range of speech frequencies, so that when transmitted over a system employing amplifiers which are particularly efficient for speech frequencies, no special modification of the amplifiers is neces. sary. The nodulated carrier-wave is converted back to low-frequency at the receiving station and operates a low-frequency signal receiver. Different carrier or modulating frequencies may be employed for different signalling purposes, for example, for lighting and extinguishing valve amplifiers as the different repeating stations or for calling up a repeating station. The signalling key may be arranged to control the generation of both the carrier-wave and the low-frequency signals.
Patent GB-1090603-A (GB)
Title: Thermoelectric method and apparatus for rapid determination of silicon in cast iron
IPC: G01N27/00
Filed: 1966-05-27
Abstract: 1,090,603. Determining physical qualities of materials. J. VIDTS. May 27, 1966 [June 4, 1965], No.23991/66, Heading G1N. The silicon and carbon contents of cast iron are measured by producing in a sample of iron in its austenitic state, a temperature gradient, and intermittently measuring the temperatures and the difference in thermo-electric e. m. f. s generated at two points spaced apart in the direction of the temperature gradient. The silicon content is then determined from the thermo-electric e. m. f. generated for a particular temperature gradient and the carbon content is obtained from the thermal arrest appearing on the cooling curve of the sample. In the embodiments, molten iron is poured into a mold 12, Fig. 1, having walls of refractory material, e.g. sand, and a metallic chill plate 18 forming its bottom. Two thermocouples 20, 22 are arranged in the mold cavity 14 to be enveloped by the cast iron, and may be connected through a switch 26 to a recording device 28. The switch is operated to connect first one and then the other of the thermocouples to the recorder to produce cooling curves for each of the points A, B. In this embodiment, the hot junctions of the thermocouples are uninsulated and one terminal of each junction is used to measure the difference between the thermal e.m.f. formed between the sample and the terminal 32 and between the sample and the terminal 30. To this end, these two terminals are connected by the switch 26 to a recorder 34. In a modification, Fig. 3 (not shown), the two thermocouples are disposed vertically in the mold. In a further embodiment, Fig. 2 (not shown), the hot junctions of the thermocouples are insulated from the sample, the thermal e. m. f. f. being measured by a pair of electrical conductors (40), (42), whose ends are arranged immediately adjacent the hot junctions of the thermocouples.
Patent GB-921405-A (GB)
Title: Improvements in and relating to microtomes
IPC: G01N1/06
Filed: 1961-07-03
Abstract: 921,405. Microtomes. D. DANON. July 3, 1961, No. 24009/61. Class 97 (1). A microtome comprises a system of two levers, one of which is adapted to be raised at an end remote from its pivotal axis in units of 1 micron by means of a gear system including a micrometric screw, the second lever being adapted to be raised about its fulcrum by the first lever through the intermediary of a pin arranged at a distance from its fulcrum and directly engaging the first lever, the second lever carrying a rotatable drum near said fulcrum, on which drum the specimen is mounted, the rotation of the drum being adapted to move the specimen past a cutting knife and to actuate the gear system for raising said first lever, whereby the specimen is advanced toward the knife. As shown, a specimen is mounted in a holder 34 on a rotatable drum 33, the shaft of which is provided with a handle (c.f. Figs. 2 and 3, not shown) for rotating the specimen past a fixed cutting knife 40 mounted on a known adjustable tool post 41. The drum is mounted on a lever 22 pivoted about bearings 25, 26. Mechanism for raising the lever 22 stepwise about its bearings so as to move the drum bodily towards the knife 40 comprises a member 10 eccentrically mounted on the shaft of the drum 33 and having two arms 10a, 10b engaging over a normally fixed pin 39<SP>1</SP>, the arrangement being such that for each rotation of the drum a ratchet wheel 9 on a shaft 6 is advanced by arm 10a by one tooth. This rotation is transmitted through a worm gearing 11, 12 and a micrometrically screw-threaded shaft 13 carrying the wheel 12 to an axially slidable but rotatably fixed bracket 17, this bracket being raised by 1 micron for each advance of the ratchet wheel. Axial movement of the bracket 17 causes pivotal movement of a lever 19 about its bearings 20, 21 and by way of a pin 29 adjustably positioned in a slot 28 in the lever 22, the raising of this lever about its bearings is obtained. The ball bearings 18, 20, 21, 25 and 26 have accurately located in conical or U-slots (Figs. 3 and 4, not shown). The lever 19 is of glass or metal covered with glass. Reference is also made to arrangement in which pin 39<SP>1</SP> lies against the outside of arm 10a.
Patent GB-772328-A (GB)
Title: Improvements in or relating to braking devices for motor vehicles and the like
IPC: G05G25/00
Filed: 1955-08-19
Abstract: 772,328. Vehicle hand brakes. SCHROTER, H. O. Aug. 19, 1955 [Aug. 21, 1954; Feb. 1, 1955], No. 24010/55. Class 103 (1). A vehicle hand brake 1, as shown in the brake-applied position in Fig. 2, has a hand control 1 which operates through a ratchet rod 2, lever 4 and link 5 to pivot a lever 7 about a pin on a further lever 6 rotatable about a fixed pivot 10. The pivot 10 and a stop 9 secured to lever 6 limit the movement of the end 8 of lever 7. The lever is normally prevented from being rotated clockwise by the spring 14, as a result of the one-way locking action of the friction shoes 12, on pivoted strips 11 which engage the segment 13. When, however, the brake control 1 is pulled and the lever 7 rotated clockwise by bearing against the top of strips 11, it releases the shoes 12 and the force of spring 14 is automatically applied to assist the manual effort. In this way the manual effort may at all times be assisted by a spring effort acting through pin 16 on lever 6, the lever 6 having secured to it at its lower end a chain 18 linked to the brakes through cable 19. Since the leverage of the spring 14 is increased as the lever 6 rotates clockwise, the servoforce will thus bo increased with the pulled out position of the handle 1. When the brake is released by forward return movement of the handle 1, the friction shoes 12 no longer have any locking effect on segment 13. In the embodiment shown in Fig. 3, the function of the one-way locking mechanism 11, 12, 13 is performed instead by a self-locking hydraulic piston and cylinder mechanism 11a, 12a, 13a, a valve 23 being opened to allow flow from one side of the piston to the other when the lever 7 is rotated clockwise.
Patent GB-950159-A (GB)
Title: Novel tetrahydro-isoquinoline derivatives and a process for the manufacture thereof
IPC: A61K31/00
Filed: 1962-06-22
Abstract: The invention comprises compounds of the formula: <FORM:0950159/C2/1> (wherein S denotes alkyl, alkoxy, aralkoxy, hydroxy or alkylenedioxy substitution occupying not more than 3 positions and includes at least one alkoxy group, alkylenedioxy being regarded as 2 alkoxy groups in this context, and S1 denotes alkyl, alkoxy, aralkoxy, hydroxy, nitro, halogeno or alkylenedioxy substitution occupying not more than 3 positions, and in which the broken lines denote bonds to optional groups) and acid-addition salts thereof; and their preparation by condensing a dihydroisoquinolinium salt of the formula: <FORM:0950159/C2/2> (wherein A- is an anion) with the appropriate ketone in the presence of a basic agent. Examples are given and the separation of products into optical isomers is also referred to.  Dihydroisoquinolinium salts of the second general formula above are obtained by quaternization of the corresponding 3,4-dihydroisoquinoline.  6 - Benzyloxy -7- methoxy-3, 4-dihydroisoquinoline is prepared by converting (3-benzyloxy-4-methoxy-phenyl)-ethylamin to its formamide and cyclizing this, the oxalate of the product being also prepared. 2-Ethyl-4, 5-dimethoxyacetophenone is prepared from 1-ethyl-3, 4-dimethoxybenzene and acetyl chloride.  The tetrahydroisoquinoline derivatives of the invention, which are stated to possess analgesic and antitussive properties, may be made up into pharmaceutical compositions with suitable carriers. These may take the form of dragees, tablets, capsules, suppositiories, solutions, suspensions or emulsions, and may contain preservatives, stabilizers, wetting or emulsifying agents, salts for varying osmotic pressure or buffers. Ampoules containing 1-[(p-chlorobenzoyl)-methyl] -2- methyl-6, 7-dimethoxy -1, 2, 3, 4-tetrahydroisoquinoline citrate and tablets containing the corresponding hydrochloride are described.
Patent GB-1032827-A (GB)
Title: Improvements in and relating to conveyor systems
Inventor: MARSH FRANCIS
IPC: B65G47/51
Filed: 1962-06-22
Abstract: 1,032,827. Endless conveyers; bunkers. SIMONACCO Ltd. June 12, 1963 [June 22, 1962], No. 24121/62. Headings B8A and B8E. A conveyer system for use underground in coal or ore mines comprises an endless main conveyer D fed with material by a linearly extending intermediate bunker conveyer system including an endless belt feeding conveyer C1 vertically spaced above an endless bunker conveyer C2 which forms a horizontal reversible floor of a storage bunker 10 responsive in motion to the torque required to move a predetermined quantity of material on the feeding conveyer and similar bunker conveyer systems A1, A2, B1 B2, which extend transversely from the conveyer C1, C2, and feed the latter via shoots 4, 6. The bunker 10 formed by metal or concrete side and back walls 12, 14 which extend upwardly between the bunker and feeding conveyers initially receive a pile M of material which then acts as a shoot for passing the material on to a shoot 15 for delivery to the main conveyer D. If the rate of flow on the feeding conveyer C1 exceeds the predetermined flow, a torque registering device causes energization of the bunker conveyer motor 21 and the conveyer C2 comprising flat plates 18 pivoted to endless chains 20, moves upstream to store the pile M of material thereon and so maintain a steady flow along the main conveyer D. When the bunker 10 becomes full, a sensing device is operated which sets the torque registering devices of the two upstream bunker conveyer systems A1, A2, B1, B2 to a total flow rate value equal to that already set for the intermediate conveyer system C1, C2. Any excess flow on these two feeding conveyers A1, B1 is then stored in the associated bunkers A2, B2 in the same way as for the conveyer system C1, C2. If in any of the bunker conveyer systems, the flow of material is less than the predetermined value, the torque responsive device causes the relevant bunker conveyer to move its stored material downstream to make good the deficiency. The torque responsive device may comprise pressure cells associated with a slidable mounting on a head pulley 26 or may be electrical current fluctuation devices in circuit with the conveyer driving motor 17. A manual overriding switch is provided at the conveyer system C which can be operated to change the control means back to its first condition.
Patent GB-677868-A (GB)
Title: Roller electrode tube welding machine
Inventor: ABBEY NELSON DANIEL
IPC: B23K11/06
Filed: 1950-10-03
Abstract: 677,868. Making tubes; welding by pressure. ETNA MACHINE CO. Oct. 3, 1950, No. 24175/50. Classes 83 (ii) and 83 (iv). A welding machine for producing longitudinally-jointed tubes formed from flat strip comprises a series of rolls on a bed, a transformer in a frame at the rear of the rolls, from which extends a rotatable shaft transverse to the rolls and carrying on the free end thereof a pair of electrode rollers which engage a tube in the rolls and means in front of the electrodes to adjust the position of the frame in a guideway on the bed and hence the axial position of the electrodes relative to the tube. In an embodiment a rotatable transformer 15 carrying electrodes 13 on a shaft 14 is mounted in a housing 16 vertically slidable on columns 17 which form a frame with a base 18 and a top 19. A motor 20 on the top 19 effects vertical movement of the housing 16 through gearing 24, 25, 26 and a rod 27 attached to the housing 16. The base 18 is grooved at 28 to receive guidebars 29 while a block 33 secured to the base 18 and movable in a slot 32 in the bed 10 engages a screwed rod 35 having a handle 41. Turning the handle 41 slides the frame across the bed 10. A key 31 engages a keyway in the base 18 and an electrode dressing device is provided on the housing 16.
Patent GB-598676-A (GB)
Title: Improvements in electromagnetic relays
IPC: H01H50/56
Filed: 1945-09-19
Abstract: 598,676. Electromagnetic relays. GENERAL ELECTRIC CO., Ltd., and HARRISON, W. J. D. Sept. 19, 1945, No. 24185. [Class 38(v)] In a relay particularly for use in H.F. circuits, the contact-springs are mounted on an insulating-strip 2, having transverseribs 3-8, and may be fastened between the ribs, or on a projecting end of the strip by rivets or screws which pass through holes 12, or alternatively the springs may be moulded in position. In Fig. 3, two strips are shown clamped between plates 18, 19, and attached to the yoke 21 of a relay which may be of the type described in Specification 598,675, by screws 20 which pass through holes in the ribs 3-8. When the relay is operated, an insulating block 23 carried by an extension of the armature moves a spring 22 to engage a spring 25, which is spaced from a stiff spring 24 by the stepped portion 27 of a flat insulator 26, the upper and lower parts of which pass freely through slots in the blades 24, 25. When further contact-sets are required, the insulator 26 is provided with additional stepped portions, and a similar stepped insulator fitted between the movable contact-springs.
Patent GB-287889-A (GB)
IPC: E21B19/07
Filed: 1927-09-14
Abstract: 287,889. National Supply Co. of Delaware, (Assignees of Young. F. J., and Dunn, J. A.). March 29, 1927, [Convention date]. Borehole apparatus. -Means for lifting and lowering well casings and the like comprises a body with a tapered bore therethrough containing segmental serrated slips and cam means for simultaneously raising or lowering the slips in the bore and for moving the slips radially. The body 1 has trunnions 2 for suspension and has a tapered bore 8 provided with annular grooves 9, 10, the upper and lower surfaces 18, 12 of the groove 10, and the lower surface 11 of the groove 9, tapering downwardly; the part 19 above the groove 10 projects inwardly beyond the rest of the tapered bore 8. The slips 17 have outwardly extending flanges 15, 16 complementary to the grooves 9, 10 and are held against lateral motion in the bore by means of guides 44 which engage tapered grooves 45 in the body and are held by bolts 47 and plates 48. Pins 39 project from the slips and carry rollers 40 engaging cam grooves 41 in a ring 28 which is held on the body 1 by a split ring 29. When the ring 28 is rotated by means of a bar engaging one of a series of recesses 43, the cam grooves lift the slips and the upper surfaces of the flanges 16 engage the tapered surface 18 of the groove 10 to move the slips outwardly to the position shown in Fig. 4. The outer surfaces of the slips have a curvature greater than that of the bore 8 to provide a line contact.
Patent GB-170171-A (GB)
Title: Improvements in and relating to the manufacture and treatment of knitted articles
IPC: D06M15/07
Filed: 1920-08-23
Abstract: 170,171. Tully, F. W. Aug. 23, 1920. Stockings; undergarments; gloves; materials for wearing-apparel.- Knitted fabrics, such as stockings, gloves, underwear &c., are made resistant to unravelling or like damage by treating parts of them with a colloid stiffening-material which sticks together the component fibres of the yarns, and renders the loops rigid, even when broken. A preferred material consists of a solution of cellulose acetate in pure acetone, to which is added an equal volume of a clarifier consisting of equal parts of methyl alcohol and benzol; a softener, consisting of equal weights of salol and triphenyl phosphate, is also added. The solution may be sprayed through a stencil, or applied by brushes or by a printing block. It may be sprayed upon the fabric while it is being knitted, for example, in the knitting of the stocking shown in Fig. 1, the spray may be applied to' the areas 5 immediately after knitting them, and to the heels and toes to render them wear-resisting: Cut edges of knitted fabrics may be similarly treated to stiffen them before sewing them together.
Patent GB-435641-A (GB)
Title: Improvements in or relating to electric lamp holders
IPC: H01R33/22
Filed: 1934-08-24
Abstract: 435,641. Electric - lamp holders. CASALS, P. C., 103, Rue Aribau, Barcelona, Spain. Aug. 24, 1934, No. 24457. Convention date, Sept. 18, 1933. [Class 39 (ii)] An electric - lamp holder comprises a member 1, Figs. 1 and 3, of insulating material provided with two oppositely disposed grooves 71 which may be peripheral, as shown, or longitudinal and receive the current leads, a screwthreaded metal socket 2 with a flat flange being secured on the face of the insulating body 1 by a screw 5, rivet, or the like, which forms the centre contact and also secures a metal strip 3 with an offset end extending through a lateral aperture 2<11> in the socket into a recess 91 in the insulating member 1, where it is provided with a terminal screw 3<1>. A sheet 4 of insulating material separates the flange of the metal socket 2 from the strip 3 and screw 5. The socket 2 is provided opposite to the lateral opening 2<11> with a tongue or lug 8 extending upwardly within a cavity 7 in the insulating member 1, and a terminal screw 8<1> mounted on the lug may be either screwed through into the member 1 or enter a recess therein to provide a lateral retaining means for the socket. The current leads secured to the terminal screws extend around the peripheral grooves and pass inwardly through apertures into a recess or cavity 12<11> in the member 1. The insulating member 1 and screwed socket 2 may be enclosed within a sheath or cover 10 by means of a tubular sleeve 11 which may be made of insulating material or metal lined with insulating material, and the cover 10 may be provided with diametrically opposite holes to receive current leads inserted laterally therethrough. In a modification adapted for candle lamps the current leads are received in longitudinal grooves parallel to the axis of the insulating body.
Patent GB-428991-A (GB)
Title: Improvements in tap washers
IPC: F16K1/36
Filed: 1934-08-27
Abstract: 428,991. Tap washers. COHEN, H., 3451, St. Lawrence Boulevard, Montreal, Canada. Aug. 27, 1934, No. 24617. Convention date, Sept. 1, 1933. [Class 135] A tap washer, made wholly or partly of leather or equivalent material, has a bushing extending only part way through the washer so as to leave a non-lined part of the central bore 15. In one form, the bushing 14 extends through the leather part 13 of the washer which is completed by a rubber facing-disc 18. Where the washer is made wholly of leather, the inner flange 17 on the bushing 14 sinks circumferentially into the sides of the bore 15 some distance from the end thereof. The washer may be conical in shape.
Patent GB-332099-A (GB)
Title: Improvements in buffing and draw gear for railway and like vehicles
IPC: B61G9/06
Filed: 1929-08-14
Abstract: 332,099. Spencer, A. Aug. 14, 1929. Combined buffer and draw-gear.- In a central buffer and draw-gear for railway and like vehicles a buffer spring 11 located in front of the headstock 20 is combined with a friction draught gear 1 of any suitable construction disposed between longitudinal members of the underframe at the rear of the headstock. As shown, in Fig. 1, the spring 11, which is preferably of the compound rubber and metal plate type, is arranged within a casing 10 and is adapted to be compressed by a pressure plate 13 projecting through the casing and co-operating with striking faces on the rear of the coupler-head 8. In a modification, Fig. 4, two springs 15 located one at each side of the coupler-head within a casting 17 are compressed by a single pressure plate 18 slidable over the coupler-head shank 7 and over bolts 16 which pass through the springs 15.