baber/WOPTO huggingface dataset:
Patent GB-551075-A (GB)
Title: Improvements in or relating to devices for measuring direct voltages
IPC: G01R19/18
Filed: 1942-02-13
Abstract: 551,075. Measuring voltages. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Feb. 13, 1942, No. 1970. [Class 37] In an arrangement for measuring small D.C. voltages, such as in balancing a Wheatstone bridge, the voltage at 1 is applied across a series combination of a resistor 5 and condenser 6 which is short-circuited periodically by a switch 7 operated by an electro-magnet energized by an A.C. supply, or by a rotary switch. The resulting alternating voltage set up across the condenser 6 (or across the resistor 5) is fed to an amplifier 3 and thence to a cathode-ray indicator 4 or moving-coil instrument. Instead of condenser 6, the capacity between the grid and cathode of the amplifier 3 may be employed, as diagrammatically shown at 10. In order to remove errors introduced by the varying contact-potential of switch 7, a swamping resistance may be connected in the discharge circuit. The time of closure of switch 7 and the time-constant of the discharge circuit are preferably so proportioned that the condenser is completely discharged so as to make the amplitude of the alternating voltage as large as possible, and if the times of charge and discharge are equal, the voltage is symmetrical. The resistance 5 should be large, for example 10 megohms, to avoid overloading the voltagesource, unless the latter has itself a high internal resistance in which case both resistance and condenser have a low value, or 10 may be used. In order to adapt the device to different conditions, resistance 5 may be variable and condenser 6 may be replaceable or adapted to be cut out of circuit.
Patent GB-152560-A (GB)
Title: Improvements in gear transmission
IPC: F16H57/00
Filed: 1920-01-22
Abstract: 152,560. Sizaire, M. H. L., and Berwick & Co., F. W. Jan. 22, 1920. Toothed wheels.-A toothed gearwheel for use in connexion with magnetos, pumps, &c. of motor-vehicle engines is connected resiliently to its shaft and has an eccentric adjustment to regulate the mesh. The toothed wheel C is mounted on an eccentric bush D on a fixed sleeve B through which the shaft A passes. The bush D is adjusted by a. radial arm d movable over a fixed sector F. A cross-bar G on the shaft is connected to the wheel C through springs J.
Patent GB-174856-A (GB)
Title: Improvements in or relating to the head lights of motor vehicles and the like
IPC: B60Q1/14
Filed: 1921-01-15
Abstract: 174,856. Dobson, L. A. Jan. 15, 1921. Lantern screens.- Screens E of rectangular channel section are secured to a sleeve D which is pivotally mounted on a cross-bar B on the vehicle, and are arranged so that they can be turned from down in front of the lamps A to cut off the upward rays of light. The under sides of the screens may be polished or formed as mirrors.
Patent GB-1004331-A (GB)
Title: Overload protection for transistor power oscillators
Inventor: PALMER KENNETH ARTHUR
IPC: H02H7/122
Filed: 1962-01-22
Abstract: 1,004,331. Transistor oscillator circuits. ERICSSON TELEPHONES Ltd. March 20, 1963 [Jan. 22, 1962], No. 2204/62. Heading H3T. [Also in Division H2] A transistor power oscillator 10 includes means for shutting down the oscillator in response to an increase in oscillation frequency. As described, the means is a series resonant circuit comprising a capacitor 17 and a relay A, the resonant frequency of the circuit being higher than the frequency of oscillation of the oscillator. If the load 16 increases the oscillation frequency and hence the current through relay A, increases until relay A operates, releasing relay B to disconnect the supply to the oscillator, and also operating an alarm (not shown). Power may be restored by actuation of key 24 to re-energize relay B.
Patent GB-528240-A (GB)
Title: Electrolytic processes and baths
IPC: C25D3/32
Filed: 1939-01-23
Abstract: 528,240. Electrodeposition of tin. NACHTMAN, J. S. Jan. 23., 1939, No. 2237. Convention date, Jan. 25, 1938. [Class 41] Baths for the electrodeposition of tin contain a stannous salt such as the fluoride or sulphate, an inorganic acid, a colloid such as.gelatine, peptone, liquorice, aloin, lysalbic acid, gum arabic &c. a wetting agent such as an alkali salt of a sulphate ester of an organic alcohol having 8 to 12 carbon atoms in the molecule, and one of the following substances : tar acid boiling at 220-250‹C., alpha- or #-naphthol, and sulphonated cresylic acid, cresol or alpha- or #- naphthol. A reducing agent such as hydroquinone, or tartaric, malic, oxalic or citric acid, a metallic salt such as copper, chromium, nickel, cobalt or iron salt, and an organic acid such as gluconic, benzene disulphonic or succinic acid may be added. The base metal may be given a preliminary coating of iron, iron alloy, nickel, nickel alloy or copper-tin alloy, and the coated metal be heated in a non-oxidizing atmosphere to alloy the coating and afterwards polished or rolled. After coating with tin, the metal may be heated to melt the tin and alloy it with the undercoating. Specification 473,479 is referred to. The Specification as open to inspection under Sect. 91 describes the use in the melting of the tin coating of pre-heating, heating and cooling baths consisting of chlorinated or hydrogenated mineral, vegetable or animal oils which may contain phenol-formaldehyde condensation products or other synthetic resins. This subjectmatter does not appear in the Specification as accepted.
Patent GB-412658-A (GB)
Title: Wristlet, writing, or marking pad
IPC: B42D19/00
Filed: 1933-01-24
Abstract: 412,658. Memorandum appliances. LOMAS, G. E., 93, WoodsMoor Lane, Stockport. Jan. 24, 1933, No. 2252. [Class 16.] In a memorandum appliance of the type in which a web of paper is adapted to be unwound from one spindle and wound on to another, for movement under a writing aperture in a metal or other casing adapted to be strapped to the wrist, the spindles b, provided with manipulating knobs, are situated in recesses in the casing, and are split longitudinally to retain the ends of the web, and splayed out at the split ends to retain the spindles within the casing. The casing is curved to fit on the wrist, and may be provided with a leather or like strap. An additional bore or recess in the casing is adapted to receive a pen or pencil d. Instead of paper a web of tracing cloth may be used, from which writing may be removed by means of a sponge.
Patent GB-848256-A (GB)
Title: Improvements in or relating to locking devices for sliding doors
Inventor: WISBEY SAMUEL
IPC: E05B65/08
Filed: 1958-01-23
Abstract: 848,256. Door fastenings. ACME SHOWCARD & SIGN CO. Ltd. Jan. 12, 1959 [Jan. 23, 1958], No. 2349/58. Class 44. A locking device for a sliding door of a cabinet or the like, comprises a bar 27 adapted to lie in a plane parallel to that of the door and having one end 29 bent substantially at right angles thereto so as to project inwardly towards the door, the bar being slidable on and rotatable about the axis of a stem 17, 18 adapted to be mounted in the door frame or surround so that it can be turned to a position perpendicular to the direction of sliding movement of the door and moved inwardly to cause its bent end to lie in the path of movement of the door, or moved outwardly and turned to a position parallel to the path of movement of the door, leaving the door free to slide, the stem being apertured to receive the bail 33 of a padlock 34 adapted to retain the bar in its inward position. As shown, the device is applied to a cabinet having two pairs of sliding doors 13, 14 and 15, 16 one above the other located at the bottom and top respectively in channel strips 11 and 12 fixed to a channel section frame member 10. The stem 17, 18 is rotatably mounted in the member 10 and the bar 27, which is bent at both ends, is non- rotatably but slidably mounted on the rectangular section part 17 so that it can be moved into and out of the path of movement of both doors 13 and 15. The doors 14 and 16 may be secured by a pin inserted in a hole which extends through the member 10 and through the bottom of the channel in the strips 11, 12 for the inner doors. The part 17 includes a head 26 to retain the bar 27. For a single door, or a single pair of doors one bent end of the bar 27 may be omitted or may fit in a suitably located socket. The stem 17, 18 may be circular in cross-section and non- rotatable, with the bar 27 mounted rotatably thereon.
Patent GB-138161-A (GB)
Title: Improvements in slab walls, buildings and fences
IPC: E04B2/56
Filed: 1919-01-31
Abstract: 138,161. Baines, J. S. Jan. 31, 1919. Walls and partitions.-Partitions, garden walls or fences, and other walls are formed from concrete slabs P reinforced with wirework or expanded metal and pre-cast studs, posts, or pillars formed in two parts, the slabs, copings, and studs being all grouted together. In constructing the walls, holes and troughs are dug for the foundations of the posts and are filled with concrete, in which are embedded metal plates C and one or more metal upright rods B. The slabs and parts D of the posts are placed in position, and concrete is poured between the parts D of the posts, which may be connected by bolts G. The rods B, X are spaced by plates, which are drilled by means of templets. The coping blocks are provided with sharp-edged metal plates K and are grooved to fit over the slabs P.
Patent GB-580872-A (GB)
Title: Improvements in or relating to burner supports for gas cookers and hot plates
IPC: F24C3/08
Filed: 1945-02-01
Abstract: 580,872. Burner supports. MAIN, Ltd., R. & A., ADAM, A. J., and FRANCIS, S. E. Feb. 1, 1945, No. 2548. [Class 75 (i)] A support for a gas burner for use in a hotplate or cooker comprises a supporting member formed separately from the burner and hotplate or cooker frame, and arranged at one end detachably to engage a socket 16 on the cooker, and at the other end to support the burner 12. The supporting member which is preferably made of a rod of deformable material, such as mild steel, may have its ends welded at 18, Fig- 2, to form a crossbar 19, bearing against the back face above the slot, while an inflexion 13, Fig. 1, is provided which bears against the front face below the slot. The burner head may have a channel 20 arranged to rest on the forward crossbar 11 of the support.
Patent GB-591954-A (GB)
Title: Method of repairing damaged or fractured gas pipes or mains
IPC: F16L55/10
Filed: 1945-02-01
Abstract: 591,954. Repairing and stopping pipes. MANNING, D. J.,-ENGEL, F. A., ENGEL, J. G., and HUBER, K. Feb. 1, 1945, No. 2600. Convention date, Sept. 17,-1942. Drawings to Specification. [Class 99 (ii)] . Repairs to a gas pipe are effected whilst the flow of gas is temporarily stopped by introducing into the pipe a mass of foam such as is produced by a fire extinguisher of known type, preferably with an inert gas in the foam bubbles.
Patent GB-726072-A (GB)
Title: Improvements in and relating to elastic fluid turbines
Inventor: YATES HENRY GEORGE
IPC: F01D25/28
Filed: 1953-01-29
Abstract: 726,072. Elastic-fluid turbines. PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. Nov. 6, 1953 [Jan. 29, 1953], No. 2619/53. Class 110 (3). An elastic fluid turbine has an inner split barrel exhausting at one end to an outer split casing within which it is supported, the lower half of the casing being of rectangular form and comprising two vertical parallel side-plates, two vertical parallel end-plates, and a base-plate, the plates being united preferably by welding. The base-plate and side-plates have extensions which have a substantial degree of flexibility in directions normal to the turbine axis and the side-plates extensions are provided with feet or other supporting means. The inner barrel a, Fig. 1, is split at band has an open end d. It is slidingly supported by palms g in the outer casing in known manner. The outer casing comprises an upper half c and a lower half built up from end-plates i, side-plates h with extensions k, m provided with supporting feet n, o, and a base-plate j with extensions j<SP>1</SP>, j<SP>11</SP>. Triangular openings are provided in the side and base-plate extensions as shown, to provide the required flexibility. The lower extensions of the side-plates may be combined with the extensions of the base - plate into single members arranged in inclined planes. The rotor bearings r<SP>1</SP> are carried on transverse beams s, Fig. 5, slung from the side-plates by plates t. Keys v on the sides of the beams engage vertical keyways provided on the endplates i. Cooling of the side- and base-plates may be effected by the provision of ribs, cooling coils or passages for cooling fluid. The endplates have central conical portions adapted to carry gland housings 2. One end of the rotor carries blades enclosed in a separate housing f and may constitute an astern turbine. The casing is carried on trunnions x and is axially located by a vertical pin y.
Patent GB-585503-A (GB)
Title: Improvements relating to kneeling supports
IPC: A47L13/62
Filed: 1945-02-02
Abstract: 585,503. Kneeling supports. LEVEY, H. J. Feb. 2, 1945, No. 2723. [Class 52 (ii)] A kneeling support comprises a frame, of steel rod, having two base members 3, 4, and two side members 7, 8, and is formed with helices 5 at each corner to provide resilience to a knee resting sheet 9 which is attached to the side members 7, 8.
Patent GB-364366-A (GB)
Title: Improvements in packing fragile articles
IPC: B65D5/50
Filed: 1931-01-28
Abstract: 364,366. Packing fragile articles. HOLED-TITE PACKING CORPORATION, 100, East 42nd Street, New York, U.S.A. Jan. 28, 1931, No. 2738. Convention date, Feb. 11, 1930. [Classes 18 and 94 (i).] A wrapper or enclosure and holder for electric light bulbs, thermionic valves, &c. comprises a sheet of flexible material having hinged portions in preformed bent form adapted to form sides of a wrapper for the article, the sides extending inwardly towards the article from their hinge connections. A sheet 10 comprises panels 11 .. 14 each moulded to a bent formation and separated by folding lines or hinges 15, 16, 17. Depressions 18 are formed in each panel to engage the article and projections 19, 20 position the ends thereof when the sheet is folded as shown in Fig. 4. The package may be placed in an outer wrapper or carton 22 and by exerting outward pressure thereon, brace the walls thereof. In modifications, the sheet has three panels or the depressions 18 are omitted and the device is used to enclose a carton itself holding a fragile article.
Patent GB-206059-A (GB)
Title: Improvements in or relating to variable-speed gearing
IPC: F16H15/04
Filed: 1923-01-30
Abstract: 206,059. Johnson, J. W., (Johnson, W. T.). Jan. 30, 1923. Variable-speed gearing comprises a spherical surface C coacting with a ring of friction rollers 21 the axis of which ring is moved angularly to change the velocity ratio. The rollers 21 turn freely in separate carriages 20 which slide radially being thrust ootwards by spring-pressed wedges 19. The frame B supporting the rollers 21 has an inner spherical surface 16 driven from an inner invariable ring of rollers 15 carried by a spherical boss A secured to a driving-shaft 1. The speed at which the sphere C is driven is varied by changing the obliquity of the frame B which is done by means of a conical pedestal 28 which can be turned relatively to a fixed oblique eccentric 23 by a manually-operated worm 31. In the arrangement shown, the sphere C is coupled to the internal gear 34 of an epicyclic train, to control it. The sun gear 32 of this train is secured to a driven shaft 2, and the planet gears 33 are carried by the shaft 1. The speed of the shaft 2 varies on both sides of zero. For safety, an automatic centrifugal friction clutch is arranged between the shait 1 and the boss A. This comprises two collars 6 sliding on feathers and pressing into action two multiple-plate clutches 11 which transmit power to the wedge supports 9 of the inner rollers 15. These collars are thrust towards one another by rings of loose centrifugal wedge-blocks 12 against the action of a medial spring 7.
Patent GB-1042081-A (GB)
Title: Improvements relating to the freeze drying of materials
IPC: F26B5/06
Filed: 1964-01-22
Abstract: 1,042,081. Freeze-drying. LEYBOLDHOCHVAKUUM ANLAGEN G.m.b.H. Jan. 22,1964 [March 2, 1963], No. 2745/64. Heading F4G. [Also in Divisions A2 and G6] A method of freeze drying materials wherein the material is fed from a hermetically sealed storage container into a freeze drying chamber, dried therein and discharged to a hermetically sealed collecting chamber, the feeding, drying and discharging operations being controlled without the material being exposed at any time to atmosphere. In freeze drying apparatus, the material is fed from a hermetically sealed storage container (not shown), via a valved pipe and feed means 51 into a chamber 2 on to one or more horizontal discs 29 mounted on a rotatable vertical shaft 26 through which a coolant may pass to pipes 21 within the discs 29, and the chamber is ventable through a valve 233. Heat medium for sublimation is passed through the shaft 26 and pipes 21 and the chamber is put into communication with a condensing chamber 3 connected to a pump 4 by opening a gate 33. The material is spread on the discs 29 by elements 25 which can be raised or lowered and perform a figure-of-eight-movement through actuating means 251, which spreaders also dislodge the material when dry to fall through a valved floor portion 27 into a hermetically sealed collecting vessel 28.
Patent GB-1287194-A (GB)
Title: Process for removing carbon dioxide from gas mixtures
IPC: B01D53/52
Filed: 1970-01-21
Abstract: 1287194 Removing CO 2  from gas mixtures BADISCHE ANILIN- & SODA-FABRIK AG 21 Jan 1970 [22 Jan 1969 30 Jan 1969] 2843/ 70 Heading B1L Acid gas comprising carbon dioxide and optionally also hydrogen sulphide is removed from gas streams by scrubbing the stream under pressure at a solvent bottoms temperature of 70-110C. with an aqeous 2.5-4.5M solution of methyldiethanolamine which may also contain 0.1-0.4 mole/1, monomethylmonoethanolamine. The scrubbing may be carried out in either a one- or two-stage process. In the former, rich bottoms from countercurrent scrubbing is depressured to release absorbed acid gas before being fully regenerated and passed back to the scrubbing, the overhead gas from regeneration being passed to the depressuring chamber before leaving the system (see Fig. 2, not shown). In the latter, most of the partially regenerated liquid from the depressuring chamber is returned to an intermediate point of the scrubber, while a small proportion is highly regenerated and passed to the scrubber head.
Patent GB-1424521-A (GB)
Title: Methods and apparatus for testing cigarettes
IPC: A24C5/34
Filed: 1972-01-21
Abstract: 1424521 Testing cigarettes MOLINS Ltd 22 Jan 1973 [21 Jan 1972] 2897/72 Heading A2C The Specification describes the same apparatus as that described in relation to Figs. 9 to 11 of Specification 1385792 but the claims are directed to testing a cigarette by directing a stream of air against the side of the cigarette adjacent to one of its ends with sufficient velocity to deform the end portion of an inadequately filled cigarette, and detecting a characteristic of the air stream in a region to which said air stream is deflected by the deformed side of an inadequately filled cigarette.
Patent GB-489706-A (GB)
Title: Improvements in or relating to gradient indicators
IPC: G01C9/22
Filed: 1937-02-01
Abstract: 489,706. Inclinometers. STROTHMANN, F. Feb. 1, 1937, Nos. 2914 and 2915. Convention dates, Jan. 31, 1936 and April 4, 1936. [Class 97 (ii)] A tubular level system, adjustably carried in a casing 1 so that the indicating meniscus may be brought to the zero position without modifying the quantity of liquid, comprises two adjacent tubes 14, 14<1> communicating at the top with a common reservoir 9 through tubes 11, 11<1>, the tube 14<1> communicating with the reservoir 9 at the bottom through an admission channel 10<1>, 31, 32, and with the bottom of the tube 14, which indicates the inclination on the scale 38, through a byepass 34 and tube 10. The tubes 11<1>, 14<1> 10<1>, 31, thus form a damping system which exerts during accelerations a compensating pressure on the liquid in the tubes 11, 14, 10. As shown, the tubular systems are carried by a bracket 12 angularly adjustable in the outer casing 1 on a pivot screw 16 and clamped in set position by a screw-and-nut 18, 17 working in an arcuate slot 8 in the casing 1. At the rear the bracket 12 has a screw 25 and nut 26 for securing the rear plate 5. The tube 10 has a constriction 19 adjustable by means of a threaded needle valve 20. The tube 10<1> is throttled at 32 so that during accelerations surging of the liquid in the system 10<1>, 14<1>, 11<1> causes pressures to be transmitted through the passage 34 and diminish surging in the system 10, 14, 11. A scale 38 adjacent the tube 14 and masking the tube 14<1> is provided on the casing 1 and a reflector 13 is carried by the bracket 12.
Patent GB-605915-A (GB)
Title: The manufacture of substituted benzhydryl ethers
IPC: C07D295/088
Filed: 1946-01-29
Abstract: Compounds of the general formula <FORM:0605915/IV(b)/1> in which R1 and R2 are the same or different substituents and represent hydrogen, an alkyl or an alkoxy radical containing 1 or 2 carbon atoms, R3 and R4 are the same or different alkyl radicals containing 1 to 3 carbon atoms or may form part of a saturated ring such as piperidine, a methyl substituted piperidine, morpholine, a methyl substituted morpholine or thiomorpholine, are obtained by reacting a benzhydryl halide, e.g. the bromide with an alkali metal alcoholate of the formula <FORM:0605915/IV(b)/2> Xylene, toluene, benzene, ether and petroleum ether may be employed as a reaction medium.  The product may be isolated as an acid oxalate salt.  Detailed examples are given of the preparation of b -dimethylaminoethyl, b -N-piperidylethyl, b - N - morpholinylethyl, b  - diethyl - aminoethyl, b  - di - n - propylaminoethyl - p,p1 - dimethyl, and b  - methylethylaminoethyl - o - methoxy benzhydryl ether.
Patent GB-1522911-A (GB)
Title: Automatic detection of tracked vehicles
IPC: G01S13/53
Filed: 1977-01-25
Abstract: 1522911 Radar INTERNATIONAL STANDARD ELECTRIC CORP 25 Jan 1977 [10 Feb 1976] 02946/77 Heading H4D A Doppler radar for detection of vehicles having caterpillar tracks comprises a circuit for detecting the Doppler shift in the received echo signal produced by the movement at approximately 2v where v is the vehicle speed. Due to slight slip the actual track speed is not exactly 2v and the circuit according to the invention detects this 1 or 2 cycle shift in the Doppler frequency due to the motion of the tracks. The radar video signal is doubled at 1, limited at 2 and this signal multiplied with the video signal at 3. Filter 4 is very narrow bandwidth low pass to detect the shift in Doppler frequency from the 2nd harmonic, and the amplitude of this signal is normalized with the video signal amplitude at 7. The normalized signal only produces an output signal when above the threshold provided at comparator 8.
Patent GB-113658-A (GB)
Title: Improvements in and relating to Driving Belts.
Inventor: GRIFFIN AQUILA HENRY
IPC: F16G1/22
Filed: 1917-02-28
Abstract: 113,658. Griffin, A. H., Griffin, G., and Steward, J. W. Feb. 28, 1917. Belts.-A diving belt is provided with one or more elastic sections to take up slackness, consisting of helical springs c protected by coiled or tubular leather thongs b. A thong h. Fig. 7, placed inside each spring to prevent overdistension, has the central part h<1> rolled over as shown. The ends of the springs and the thongs are riveted immovably to the belt ends. The thongs b, h may be replaced by a strip secured behind the springs on the inner face of the belt