baber/WOPTO huggingface dataset:
Patent GB-1262512-A (GB)
Title: An electrical circuit for sensing variation of a signal voltage
IPC: G01B7/28
Filed: 1969-03-14
Abstract: 1,262,512. Valve and semi-conductor switching circuits. MICROMATIC HONE CORP. 14 March, 1969 [19 March, 1968], No. 13565/69. Headings H3P and H3T. In apparatus for detecting a peak value of an electrical signal, the signal at 13 is passed via a diode 18 to one grid of a balanced cathode follower 10, 11 in which it is compared with a signal at 13 after delay by a capacitor 24. The cathode follower output is fed to a threshold switching circuit which operates shortly after a peak in the input signal. The circuit may be used to monitor the output of a transducer which determines variations in radius of a body. Because of the delay imposed by the components 22, 24, cathode follower 11 passes greater current than cathode follower 10 until a positive-going peak is reached in the input signal, when the polarity of the balance output changes so as to turn on (or off) siliconcontrolled switch 50 which energizes a relay 1CR which ejects the effective part. The operation may be repeated by closing pushbutton S-1 which energizes relays 3CR and 4CR which release the silicon-controlled switch 50 and discharge capacitor 24. The balance may be adjusted at 36 whilst the minimum detectable threshold is adjustable at 38.
Patent GB-352604-A (GB)
Title: Process for producing negative electrodes for electric accumulators
IPC: H01M4/02
Filed: 1930-05-02
Abstract: 352,604. Galvanic batteries. SOC. ITALIANA BATTERIE ELETTRICHE CELLINO, 4, Via Manzoni, Milan, Italy. May 2, 1930, No. 13582. Convention date, May 2, 1929. [Class 53.] Electrodes.-In an accumulator employing a zinc negative electrode, the latter is prepared by depositing zinc electrolytically from a bath containing an alkali silicate. The bath, which is subjected to a preliminary treatment before being used, consists of sulphuric or other acid, an alkali silicate such as sodium silicate, and a salt of mercury such as the sulphate. Before the bath is used for the deposition of zinc on to supports which are to form the negative electrodes of the accumulator, zinc anodes and lead cathodes are immersed in the bath and a current passed through the solution for some hours to dissolve the zinc. The liquid is then used to deposit zinc electrolytically on to the negative electrodes which may consist of lead sheets. The plated electrodes may be used in an accumulator having lead or lead peroxide positive electrodes and an electrolyte of sulphuric acid. Specification 241,898, [Class 53, Galvanic batteries], is referred to.
Patent GB-712369-A (GB)
Title: Improvements in or relating to internal shoe-drum brakes for vehicles
Inventor: MACE THOMAS KEMP
IPC: F16D51/30
Filed: 1952-05-29
Abstract: 712,369. Internal shoe-drum brakes. GIRLING, Ltd. May 26, 1953 [May 29, 1952], No. 13639/52. Class 103(1) In an internal shoe-drum brake in which the shoes are of T section with radial webs and arcuate flanges carrying friction linings, the web of the shoe is slotted with angularly spaced slots or slits extending radially outwards from its inner edge to eliminate or reduce to a minimum any tendency for the brakes to squeal when applied. In two leading shoe type of brake illustrated there are two slots or slits 21, 22 in each shoe web 10, 11; slot 21 being located towards the toe end of the shoe at a point where the resultant of the shoe tip input force and the single resultant drum/lining reaction force produces the maximum bending movement on the radial shoe section in the toe region of the shoe, and slot 22 being located towards the heel end of the shoe at a point such that the positive deflection at the toe of the shoe lining due to the first slot is balanced by the negative deflection at the toe produced by slot 22.
Patent GB-434372-A (GB)
Title: Improvements in and relating to whistling kettles and in the manufacture thereof
IPC: A47J27/212
Filed: 1934-05-07
Abstract: 434,372. Kettles. CHOWN BROS. & MULHOLLAND, Ltd., Wattle Street, Sydney, Australia. May 7, 1934, Nos. 13686 and 13687. Convention dates, May 5, 1933 and June 30 1933. [Class 66] A lidless whistling kettle comprises a spun or pressed sheet metal, for instance aluminium, body portion 14 which is provided with a rolled-on bottom 25 and formed with openings to receive a spout 15, a whistle 23, disposed to one side of the top, and rivets for securing the handle 24. The spout, which is preferably of cast aluminium, and provided with an integral baffle 19, is secured in place by the spigot end 17 being upset to grip the edge of the body opening enclosed between it and the flange 16, the whistle being secured in position in a similar manner. The whistle may comprise outer and inner coincidently apertured cup-shaped sheet metal members 26, 28, Fig. 9, spun together to afford a rib or flange 31 and a spigot part 32. The Specification as open to inspection under Sect. 91 describes also an alternative separate baffle member of recessed form, secured in place by turning the marginal part over the end 17 of the spout. This subject-matter does not appear in the Specification as accepted.
Patent GB-198364-A (GB)
Title: Polychromatic prints proof against direct reproduction by photography
IPC: B41M3/14
Filed: 1923-05-23
Abstract: 198,364. Lacher, C. W. May 24, 1922, [Convention date]. Addition to 157,811. Printing in several colours; inkless printing by chemical reaction.-To enable a greater variety of
Patent GB-706715-A (GB)
Title: Improvements in or relating to electrical pulse slicing arrangements
IPC: H03K5/08
Filed: 1951-06-08
Abstract: 706,715. Pulse shaping circuits. GENERAL ELECTRIC CO., Ltd., and IMM, R. C. June 4, 1952 [June 8, 1951; Nov. 26, 1951], Nos. 13712/51 and 27727/51. Class 40 (6) In a pulse slicing arrangement for use with pulse signals having N levels the signal is fed to two parallel circuits clamping the signal at its most positive and negative levels respectively, a potential divider across the circuits being connected to N-1 slicing circuits, the outputs of which are combined. A two-level pulse signal, Fig. 2(a), is fed to two capacitor-diode circuits 9, 12 and 10, 13, Fig. 1, to produce signals Fig. 2(b) and (c) respectively clamped at a datum level 36 set by the lead 19 connected to an intermediate point on the H.T. supply. A signal Fig. 2(d) is set up at the join of equal resistors 21, 22 and fed to the cathode coupled slicing valve 24 to produce an output voltage similar to Fig. 2(a) but due to the slicing action, noise at the two levels of the input is lost. In a modification, Fig. 3 (not shown), the diodes and capacitors 'are interchanged. In a further modification, Fig. 4 (not shown), two slicers are fed from taps on the potential divider 21, 22 to slice a threelevel pulse input. Specification 706,687 is referred to.
Patent GB-390013-A (GB)
Title: Lighting device on motor vehicles
IPC: B60Q1/26
Filed: 1932-05-12
Abstract: 390,013. System of lighting for road vehicles. STOFFEL, G. and JAM, 0., 10, Bahnhofstrasse, Bellinzona, Switzerland. May 12, 1932, No. 13729. [Class 75 (iv).] In a system of lighting for road vehicles in which a pair of independent projectors adapted to project beams of light in different directions are adjustably mounted inside a common casing, each of the projectors 4, 5 is pivotally connected at 11 to the front part 1 of the casing and carries a clamping screw 13 working in a guide slot 12, the part 1 being disconnectible from the rear part 2 of the casing so as to give access to the adjusting means. The projectors may be illuminated separately or simultaneously, they may be arranged side by side or one above the other, and the projector 4 may project a beam downwardly so as to intercept a beam projected horizontally by the projector 5. The casing 1, 2 is fitted with a vertical or horizontal nipple 3 by means of which it is detachably secured to the back mudguard or adjacent the radiator of the vehicle.
Patent GB-793493-A (GB)
Title: Marine craft with tipping cargo containers intended for bulk material
Inventor: FRANKE HARALD
IPC: E02B3/12
Filed: 1956-05-03
Abstract: 793,493. Vessel with tipping cargo containers. BARTL, H. May 3,1956, No. 13732/56. Class 113. A vessel has on its upper deck containers 9 for bulk cargo tiltable outwardly about at least one fore-and-aft axis 24, several containers being arranged one behind another in a fore- and-aft direction. Each container may be tipped by means of a jack 10, and a water ballast tank 18 may be provided for reducing the angle of heel when the vessel is discharging cargo.
Patent GB-109845-A (GB)
Title: Improvements in Hermetically Closable Pots to Contain Easily Perishable Substances.
Inventor: KAEGI HANS
IPC: B65D77/24
Filed: 1916-09-28
Abstract: 109,845. Kõgi, H. Sept. 28, 1916. Lids and covers. -In a pot for butter, mustard, &c., in which the spoon is held horizontally between the tightlyclosing cover b and the contents of the pot, the cover b is secured by a yoke c which is pivoted to the pot and has the parts e<1> of the legs e<2> eccentric and engaging pins b<3> on the cover.
Patent GB-672465-A (GB)
Title: Permanent magnet structure for a loudspeaker
Inventor: SMITH FRANCIS BRADFORD
IPC: H04R9/02
Filed: 1950-06-01
Abstract: 672,465. Permanent magnets. ROLA CO., Inc. June 1, 1950, No. 13777/50. Class 35. A permanent magnet structure for a loud-speaker has pole tip 31 and a permanent magnet 30 having isotropic and anisotropic characteristics respectively and an annular pole 20 supported by the structure and surrounding the pole tip 31 and part of the magnet 30 so as to provide an air gap for the voice coil 51.
Patent GB-123925-A (GB)
Title: Improvements in the Method of Treating Grain for the Preservation thereof, and in Apparatus Employed in connection therewith.
Inventor: WEST CLIFTON
IPC: A23L7/10
Filed: 1918-08-24
Abstract: 123,925. West, C. Aug. 24, 1918. Rotary-mould-table machines.-Grain is preserved by steam and briquetting, the grain being formed into blocks by means of the apparatus shown. This comprises a rotating table c having in it three moulds, which are filled in succession from a hopper at n. The filled moulds pass on over a plate s, which prevents the grain from falling out, to a hydraulic press which compresses the grain into a block against a beam u arranged above the table, and then to a hydraulically-operated plunger v which presses the block out onto a conveyer w.
Patent GB-947058-A (GB)
Title: Electrical resistors
Inventor: WIGGS PETER KENNETH CLIFFORD
IPC: H01C7/118
Filed: 1959-04-23
Abstract: 947,058. Voltage variable resistors. MORGAN CRUCIBLE CO. Ltd. April 21, 1960 [April 23, 1959], No. 13917/59. Heading H1K. A voltage-sensitive resistor consists of a tapered plug electrode and a brass plate electrode with a matching tapered hole into which the plug fits with a small clearance. The electrodes are separated and retained in fixed relative positions by frictional engagement between an intervening layer of granular silicon carbide and the electrodes. In making a typical device with a plug taper of 5-15 degrees, the plug is coated with epoxy resin and sprinkled with uniform sized silicon carbide particles before insertion into the hole. The clearance between plug and hole is adjusted by pressure until the resistance measures 10 K. After curing the resin by heating at 120‹ C. for 30 minutes, the device is stabilized by connecting it to a 110 volt D.C. supply and passing 200 mA. through it for ¢ second, first in one direction and then the other. Alternatively, the clearance is preset by dimensioning the plug to stop in the right position. In another arrangement, the binder material is dissolved away after assembly of the device. An assembly may be formed of several such resistors connected in series and/or parallel and oonductively bonded together. Alternatively, such an assembly is formed by several tapered plugs placed in mating holes in a single metal plate, or by a pair of tapered plugs fitting into opposite ends of a double tapered hole.
Patent GB-1078393-A (GB)
Title: Improvements in and relating to steam generators
Inventor: BELL ALAN
IPC: F22B29/06
Filed: 1963-04-08
Abstract: 1,078,393. Once-through steam generators; superheaters. FOSTER WHEELER Ltd. April 8, 1964 [April 8, 1963], No. 13954/63. Heading F4A. A once-through forced circulation steam generator has one or more tubular superheater sections S, each connected to a tubular evaporating section E, arranged to provide for a steamwater mixture a flow path having a length 28, 32 in which high speed turbulent flow occurs followed by a length 34 in which lower speed flow occurs. The change in flow speed is due to a change in the cross-sectional area of the flow path available either due to a change in the number of tubes through which the mixture flows or a change in their diameter or both. The tubular elements 10, 34 are arranged in vertical hexagonal clusters joined by tube plates 12, 20, 22 and intermediate headers 14, 24 to form preheating, evaporating and superheating sections P, E and S respectively, the tubes 10, 34 being kept evenly separated by spacer plates 44. After parallel fluid flow through the preheating and evaporating sections, the steam and water mixture flows through central tube 28 of the superheating section S, is deflected back through the two tubes 32 by member 30 and then flows out through the remaining sixteen tubes 34 of the superheating section. The cross-sectional area of tube 28 equals the sum of the areas of the tubes 32 but is less than the sum of the areas of tubes 34. All tubes except tube 28 contain helical inserts 40 to promote turbulence.
Patent GB-1339926-A (GB)
Title: Production of formaldehyde
IPC: C07C45/38
Filed: 1971-05-10
Abstract: 1339926 Formaldehyde BADISCHE ANILIN- & SODA-FABRIK AG 10 May 1971 [11 May 1970] 13960/71 Heading C2C In a process for the production of formaldehyde by oxidative dehydrogenation of methanol in the presence of a silver catalyst, 1 to 2 moles (based on 1 mole of methanol fed to the reaction) of the off-gas obtained after the separation of the major portion of the formaldehyde is treated with a basic compound and/or an oxidizing agent and then recycled to the reaction.
Patent GB-383558-A (GB)
Title: Improvements in or relating to hooks
IPC: B64B1/58
Filed: 1932-05-17
Abstract: 383,558. Hooks. ETABLISSEMENTS C. FAURE-ROUX, St. Chamond, Loire, France. May 17, 1932, No. 14018. Convention date, May 28, 1931. [Class 89 (ii).] A hook 1 has a part circular portion adapted to engage a rod, the mouth of the hook being smaller than the rod diameter. The free ends of the hook are bevelled on their outer surface. This hook is applied to connect the ends of an elastic strap 5 to rods 7 attached to two parts of an airship. The connecting part of the envelope between these rods is formed as a bellows 12 to allow movement of the two parts under the internal gas pressure.
Patent GB-180332-A (GB)
Title: Improvements in and relating to radio receiving systems
IPC: H01Q11/02
Filed: 1922-05-18
Abstract: 180,332. British Thomson - Houston Co., Ltd., (Assignees of Rice, C. W., and Kellogg, E. W.). May 18, 1921, [Convention date]. Induction, preventing and minimizing. - In order to prevent the building up of high-frequency currents in telegraph, telephone, and power lines due to electromagnetic waves, the line 5, 6 is provided with inductance coils 17 shunted by resistances 18. Small condensers 20 may also be arranged to allow high-frequency currents to leak to earth through resistances 21.
Patent GB-594775-A (GB)
Title: Improvements in thermal regulators for electrical heating apparatus
IPC: H01H61/013
Filed: 1944-07-22
Abstract: 594,775. Thermal switches. SATCHWELL, L., WILSON, W. H., and CHINN, A. J. July 22, 1944, No. 14041. [Class 38(v)] [Also in Group XXXV] A thermal regulating switch as described in Specification 588,829 is provided with an auxiliary switch operated by the adjusting knob 211 whereby the heater 2 may be short circuited in the fully " on " position by the knob. The auxiliary switch may be arranged to short circuit both the heater and the regulating switch or to open the circuit of the heater. As shown an arm 28 on the spindle 21 co-operates with a spring blade 25 to close contacts 26, 27 in the fully " on " position of the knob 21.
Patent GB-611819-A (GB)
Title: Improvements in or relating to apparatus for electrically treating fluids
IPC: C02F1/46
Filed: 1946-05-09
Abstract: 611,819. Electrolytic treatment of fluids. DUBILIER CONDENSER CO. (1925), Ltd. May 9, 1946, No. 14044. Convention date, Feb. 12. Addition to 601,579. [Class 41] In a modification of the apparatus described in the parent Specification, the auxiliary electrodes are disposed on the main stream of fluid flow between the inlet conduit of the apparatus and the main fluid-treating electrodes. As shown in Fig. 1, a casing 10 which constitutes the main cathode of the apparatus is insulated from the main anode 14. The anode is formed with longitudinal slots 20 to permit free flow of the fluid through the casing 10 to the outlet 13. The lower end of the casing has a fitting 21 in which are mounted two adjustable auxiliary electrode rods 25, 26 which are connected in series with the main electrodes 10, 14 to a battery 29. In the arrangement shown in Fig. 2, the anode comprises a slotted structure 36 of plastic moulded material, the surface of which is coated with a metallic layer of tin or other metal. An auxiliary electrode 41 is secured adjustably to the side of the casing 10, and a second auxiliary electrode 38 projects from the base of the anode 36. In a modification employing a metallic anode, the second auxiliary electrode comprises a metallic screen extending across the casing near the bottom. In a further construction, an auxiliary electrode consists of a pin depending from the anode and projecting through but insulated from a perforated metal disc which is arranged across the casing. The apparatus may be provided with a fixed or variable resistance.
Patent GB-388055-A (GB)
Title: Process and apparatus for grinding and polishing the faces of saw blades of all kinds and similar laminar metal articles
IPC: B24B7/12
Filed: 1931-05-12
Abstract: 388,055. Grinding. POEGGEL, E., 59A, Fichtenstrasse, Remscheid, Germany. May 12, 1931, No. 14080. Convention date, Nov. 22, 1930. [Class 60.] Flat extended surfaces, surfacing and polishing.-The grinding of articles, especially saws, in band or disc form, is effected on both sides simultaneously by two discs, arranged one above the other and with parallel axes, and carried on two pairs of scissor levers so as to counterbalance one another. Grinding-wheels 1, 2, Fig. 1, are supported in bearings 3, 4, moved uniformly towards or away from the central plane by scissor levers 7, 8, pivoting about a shaft 15 and carrying gear segments actuated through gear trains from a hand-wheel 17. Screw or hydraulic means may replace the lever system. A feeding-device comprises two pairs of rolls 37, 38, mounted on a lever system similar to that of the grinding-wheels and normally held together by a spring 49, but separated for insertion of the work by a pedal through a link 48. The feeding mechanism is slidable as a whole in ways on the base 69 for removal of the grinding-wheels. The feeding- rolls may be disposed at right-angles to the wheel axes for feeding a band saw axially for bevelling the back. A circular saw 73, Fig. 9, is rotated with increasing speed as the grinding plane moves from the periphery of the work to the centre. Pressure rollers 74 carried on shafts 75 bearing in brackets 81 and telescoping in driven hollow shafts 76, rotate the work. A shaft.90 is driven through gearing from a friction roller 85, a backing-up roller bearing on the upper surface, the shaft being in screw-threaded engagement with a feed-nut 82, and having an internal thread of opposite hand working on a non-rotatable screwed shaft 94. The threads are of equal pitch, and the rollers 74 are thus fed towards the centre with a velocity equal to that of the forward feed. Slides.-The ways in the base 69, Figs. 5 and 7, of the first modification comprise grooves 70, 72 disposed at right-angles to accommodate the feeding mechanism in its two positions.
Patent GB-986036-A (GB)
Title: Tunnel diode assembly
IPC: H01L23/04
Filed: 1963-04-09
Abstract: 986,036. Tunnel diodes. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 9, 1963 [April 9, l962], No. 14103/63. Heading H1K. A housing for a tunnel diode is provided by an insulating block containing two mutually parallel bores interconnected by a third smaller parallel bore defined by two part-cylindrical surfaces with a tunnel diode element therebetween. In the embodiment a tunnel diode element 7 is mounted in the central bore of the ceramic block 1 and ohmically connected with conductive coatings 1a and 1b or soldered in position. The PN junction region is then etched off until the required area is reached during which time the characteristics of the element are continuously measured. The small bore may be sealed with a drop of cast resin and the remaining bores with silicon rubber.
Patent GB-333554-A (GB)
Title: Process for dyeing with the reserving of wool
IPC: D06P3/82
Filed: 1929-05-06
Abstract: 333,554. Carpmael, A., (I. G. Farbenindustric Akt.-Ges.). May 6, 1929. Amides.-The following amides are made from aryldiamines by the method according to Specification 333,559. 4-Chloro-3-aminobenzene-1-sulphonyl-4<1>-chloroaniline-3<1>-sulphonic acid is made from 4-chloro-3-nitrobenzene-1-sulphochloride and 4-chloroaniline-3-sulphonic acid and reducing. 3- Sulphonic acid - benzoyl-1<1>-aminobenzene-3<1>- sulphonylbenzylamine is made by condensing 3-nitrobenzenesulphochloride with benzylamine, reducing and condensing with the semichloride, ot 3- sulphobenzoic acid. 1 : 2-Dichlorobenzene-4-sulphonyl - 3'- aminobenzene-1<1>-sulphonyl-1<11>-aminobenzene-3"-sulphonic acid is made from metanilic acid and 3-nitrobenzenesulphochloride, reducing and condensing with 1 : 2-dichlorobsnzene-4-sulphochloride. 1 : 2-Dichlorobenzene-4-sulphonyl- 3<1> - aminobeaizene-1'-sulphonyl-3"-aminobenzene- 1" - sulphonyl - 1<111>-aminobenzene-3<111>-sulphonic acid is similarly prepared. Bis-3-sulphonic acidbenzoyl-bis - 3<1>-aminobenzene-1<1>-sulphonylethylenediamide is made by condensing ethylenediamine with 3-nitrobenzene-1-sulphochloride (2 mols.) reducing and condensing with the semichloride of 3-sulphobenzoic acid. Sulphochlorides. - 1 : 2: 3-Trichlorobenzene-4- sulphochloride is made from 1 : 2 : 3-trichlorobenzene and chlorsulphonic acid.
Patent GB-506788-A (GB)
Title: Improvements in arc discharge arrangements for converting electric currents
IPC: H02M7/44
Filed: 1937-12-01
Abstract: 506,788. Converting. ADAMS, T. HAMILTON-. Dec. 1, 1937, No. 14120. [Class 38 (ii)] Intermittent current is produced in a circuit including a mercury vapour are by inserting in the anode circuit the primary of a transformer T, the secondary of which has connected across its terminals a " perforated secondary anode " A<1> located between the main anode A and the cathode C. Two " secondary anodes " associated with a pair of main anodes and oppositely connected to the transformer secondary may be provided to cause the arc to alternate between the main anodes. A switch S may be provided for connecting the " secondary anode" to the main supply for striking the arc.