baber/WOPTO huggingface dataset:
Patent GB-567788-A (GB)
Title: Improvements in or relating to means for comparing electrical insulators and detecting deterioration thereof
IPC: G01R31/00
Filed: 1943-08-27
Abstract: 567,788. Converting electric currents. SWEETINBURGH, A. W. Aug. 27, 1943, No. 14022. [Class 38 (ii)] Also in Group XXXVI] Apparatus for comparing electrical insulation and detecting deterioration thereof comprises means for passing a current through the piece being tested so as to set up a pulsating potential difference across the test piece at selectively variable predetermined periodicities, by the use of a plurality of selectable interrupters forming part of the apparatus, and a deflecting measuring instrument through which the periodic impulse currents are passed. A motor 5a drives a D.C. generator 5 which, for example, may generate 1250 volts. Mounted on the shaft 1a are four rotary interrupters 1, 2, 3, 4 connected to a selector switch 6 by which the interrupters may be selectively connected to test prongs 7, 8. A change-over switch 9 is provided to connect a polarized moving coil instrument 10 alternatively in the input and output circuit. The instrument 10 is provided with a variable shunt 11. A voltage selector 12 is included in the generator circuit, as also is a switch 13 for selecting a series resistance. Each of the interrupters 1, 2, 3, 4 consists of a pair of discs separated by an air gap or an insulating material and formed with stops 14 so that a centre brush A, B, C, D makes contact with each disc of a pair alternately, while brushes a<SP>1</SP>, b<SP>1</SP>, c<SP>1</SP>, d<SP>1</SP>, e<SP>1</SP>, f<SP>1</SP>, g<SP>1</SP>, h<SP>1</SP> make contact continuously with their associated discs. With the interrupter in circuit there is obtained one cycle per revolution with relatively very short dead periods. The interrupters 2, 3 are so stepped as to give two and ten cycles per revolution respectively, with the same lengths of dead periods as the interrupter 1. The interrupter 4 is arranged to give two cycles per revolution with dead periods considerably longer than input and output periods. Gears &c. may be employed to operate two or more interrupters at different but definitely related speeds. The charging and discharging currents of the test piece are measured by the instrument 10, which indicates their mean values. For testing pieces of very small capacitance, the leakage between the two discs of an interrupter may introduce errors. These may be avoided by connecting the indicating instrument 10 in the line from the central brush leading to the test piece, the mean values of the charge and discharge currents being separated or filtered by using a pair of rectifiers in reverse connection as alternative paths. Alternatively, the central brush of each interrupter may be replaced by two separate brushes arranged to engage the intermittent contact projections of one disc only, the discs being axially separated sufficiently to permit this.
Patent GB-701610-A (GB)
Title: Improvements in or relating to conveyor systems
IPC: B65G17/48
Filed: 1951-06-13
Abstract: 701,610. Endless-chain conveyers. KING, D. M. June 4, 1952 [June 13, 1951], No. 14061/51. Class 78 (1) A conveyer comprises a single driving chain, a number of load carriers supported on the chain in such a way that while normally driven thereby they may be stopped, or moved relatively to it, without stopping it, and means whereby each load carrier may be stopped at one or more predetermined points when loaded and at one or more other points when unloaded. Means may be provided for positively connecting the carriers to the chain when necessary, e.g. when the chain is inclined. The upper part of each load carrier 17 carries two rollers 19 which extend through a slot in the driving- chain track 13 and rest on plates 20 mounted on the chain 10. A load carrying member 23 is mounted slidably in the lower part of each carrier and is connected to a horizontal member 24. A spring 26 normally maintains the member 24 in the upper position, in which position it co-operates with a stop 28 fixed to the track. When a load is attached, the member 23 is moved against the resistance of the spring into a lower position to co-operate with a stop 29. Spring-loaded pins 30, or pivoted dogs, mounted on the chain are projected by engagement with ramps 32 at the commencement of each inclined section to engage sockets 33 in the load carrier.. In order to ensure engagement of a pin with a carrier, a spring stop 34 is positioned to engage the front of a load carrier and the ramp 32 is supported by parallel links 35, one of which is controlled by a spring 36. If a pin on projection is not in register with a socket, the ramp will be depressed to allow the end of the pin to slide along the underside of the top of the carrier until it engages the socket or clears the carrier. When engagement occurs, the carrier is forced past the stop 34. This stop may be replaced by a roller mounted at the lower end of a pivoted lever, the upper end of which is acted on by a spring. Each carrier may have an extension piece at each end to space them apart sufficiently to ensure that if two or more approach an incline together, the space between them will be sufficient to receive the stop to retain the second carrier after the passage of the first. In a modification the rollers 19 are dispensed with and the carrier rests on rollers mounted in the chain.
Patent GB-231049-A (GB)
Title: Improved safety lock
IPC: E05B27/08
Filed: 1924-06-10
Abstract: 231,049. Gartmann, H. June 10, 1924. Locks, revolving-barrel; sliding bolts.-A sliding bolt b has a recess with arcuate recesses l separated by a ridge n and is operated by a follower g connected to a revolving barrel lock with, axial sliders, the follower boss having a rim k cut away at o. Fig. 2 shows the bolt in its midposition. On turning the follower to completely shoot or withdraw the bolt, the rim k is turned into one of the recesses l, m so that the ride n, co-operating therewith, blocks the bolt in position. Fig. 3 shows the revolving barrel lock for operating the follower. A slider 5 with sliders 1, 2, 3, 4 at each side of it has a notch v in its end and the other slides have grooves 2d, 1d. The sliders are normally held in a square hole s in the barrel q, and project into a square hole in the fixed plate u. Springs urge the sliders against the cover-plate t. When the key is inserted, sliders 1 - - 4 are pushed inwards to bring their recesses into register with the plate u, and the notch v of the slider 5 into engagement with the cross-pin w of the follower-boss k so that turning of the key operates the bolt. The springs 1a - - 5a of the sliders abut on lugs 1c - - 5c thereon, these springs being housed in holes 1b - - 5b in the barrel g and the narrow necks of the lugs sliding: in recesses in the barrel connecting the holes. lb - - 5b with the square recess s.
Patent GB-129035-A (GB)
Title: Improved Means for Doping Aeroplane and the like Fabrics or Materials.
Inventor: MOND ALBERT
IPC: D06B3/10
Filed: 1917-10-01
Abstract: 129,035. Mond, A. Oct. 1, 1917. Coating-appliances, hand.-A device for doping aircraft fabrics or materials comprises a container a for the fluid, a plurality of vertically-superimposed stirring-rollers g, h, i, which extend nearly to the bottom of the container, and a transfer roller e which projects through the cover b. The transfer roller e is operated, to deliver the fluid, either by applying it directly to the underside of the fabric, or by drawing a brush over its surface. The rollers are driven by direct contact, by gearing, or by other means, and may be fluted or be provided with pockets, recesses, &c. to increase the quantity of fluid taken up.
Patent GB-757755-A (GB)
Title: Improvements in magnetic focussing devices for cathode-ray tubes
Inventor: TYRRELL ARTHUR JAMES
IPC: H01J29/68
Filed: 1954-05-14
Abstract: 757,755. Cathode-ray tubes. MULLARD RADIO VALVE CO., Ltd. May 14, 1954, No. 14194/54. Class 39 (1). A magnetic focusing device for a cathode-ray tube comprises a U-sectioned sheath of soft ferromagnetic material, the two parts 1, 2 of which are relatively adjustable axially as by threaded parts 4 and enclosing a hollow cylindrical permanent magnet 8 axially magnetized, one end of the magnet being secured to one end wall of the sheath so that one pole is produced at the end wall of the sheath and the other pole is formed at the free end of the magnet or by a separate pole-piece 12 between the legs of the sheath. The pole-piece 12 is secured to magnet 8 by adhesive and the spacing between members 12, 2 can be adjusted by soft iron shims between 8 and 2. Sheath part 1 becomes a pole-piece of the same polarity as member 2. The design is such as to concentrate the field at the axis and to reduce stray fields as far as possible.
Patent GB-149809-A (GB)
Title: Improvements in internal combustion engines operating on the two-stroke cycle
IPC: F02B75/24
Filed: 1919-10-10
Abstract: 149,809. Bamber, W. V., and Laithwaite, J. W. Oct. 10, 1919. Two-stroke-cycle engines; cylinders, construction of and cooling; driving-cylinder.-The cylinder consists of a double-walled main portion A<2>, A<3> which is mounted on the crank-case B, carries the inlet and exhaust fittings, and receives the working end A of the cylinder jointed at A<5> and extended into the part A<2> as a liner A<7>. The mixture enters from the crank-case through a rotary valve and, after being compressed in the annular space A<8> is transferred to the working end A by way of a port A<9>. The exhaust gases escape through a port A<10>. The working portion A may be cooled by a water jacket or by fins E mounted on a sleeve E<2> screwed on the cylinder. In the arrangement shown, a pair of cylinders are placed co-axially, and their pistons are connected to the crank by a slotted cross-head C<3>.
Patent GB-121494-A (GB)
Title: Improvements in and relating to Apparatus for Controlling the Fire of Naval Guns.
Inventor: STAR RICHARD
IPC: F41G5/22
Filed: 1917-10-06
Abstract: 121,494. Star, R. Oct. 6, 1917. Ordnance, discharging by means external to breech mechanism; sights and methods of sighting.-Relates to firing-mechanism for naval guns, of the kind comprising pendulum apparatus controlling electric contacts in such a way that compensation is made for the angular velocity of the roll of the ship or the rate at which the gun is elevated or depressed, firing being effected during either the upward or downward movement at an advance angle corresponding to the angular velocity with which the light of sight is approaching the horizontal. The invention consists in (a) providing a separate pair of switch contacts for each direction of oscillation of the line of sight, and (b) pendulum apparatus comprising a main pendulum, two fire-timing pendulums, and expanding and contracting chambers containing liquid. The apparatus shown comprises a main pendulum 13 and two fire-timing pendulums 14, 15, one for the upward movement and one for the downward movement. The pendulum 14 carries a quadrant arm 17 provided with a contact 18 which co-acts with a contact 20 carried by an arm 25 moving with the gun when the ship rolls or when the gun is elevated. The arm 25 is connected to a block 34 which is set at the required angular position by two expanding chambers 35 containing liquid and connected by pipes to two expanding chambers 37, Fig. 1, controlled by the sighting-arm of the gun. The main pendulum 13 and the pendulum 14 are connected by expanding chambers 43, 44, 49, 50, containing liquid and cross-connected through a double conduit 54 as shown diagrammatically in Fig. 10. The chambers 43, 44 are of greater cross-section than the chambers 49, 50 and are separated at the bottom by a valve 41<a> which allows liquid to pass slowly. The chambers 49, 50 are separated by a partition 53. The conduit 54 is connected to the block 34 so that it oscillates with the line of sight, the valve 41<a> is connected to the main pendulum and the partition 53 is connected to the fire-timing pendulum 14. When the block 34 has been displaced to the left, Fig. 13, and is again approaching the zero position, liquid passes from the chamber 43 into the chamber 50 and swings the pendulum 14 to the right so that the contact 18 rises to meet the descending contact 20. The displacement of the pendulum 14 is diminished by liquid passing through the valve 41<a>, so that it is small for a slow movement and increases when the movement is faster. The contact 20 is constructed to close the circuit only when the quadrant arm 17 is moving to the left, Fios. 1 and 6. The end of the contact is a movable block 21 engaging a contact 23 at one side and maintained in frictional contact with the quadrant 17 by a spring 22. When the quadrant 17 is moving to the right, the block 21 is moved away from the contact 23 so that, when it slides over the contact 18, the circuit is not closed. Similar contacts 28, 31, Fig. 1, are conkolled in a similar manner by the other fire-timing pendulum 15.
Patent GB-851487-A (GB)
Title: Optical finders
IPC: G02B23/14
Filed: 1957-05-07
Abstract: 851,487. Optical apparatus. SOC. D'OPTIQUE ET DE MECANIQUE DE HAUTE PRECISION. May 7,1957 [May 11, 1956], No. 14490/57. Classes 97(1) and 98(1) An optical-image finder includes an image forming system, and a biprismatic body located in the region where the image is formed and having its dihedral edge substantially perpendicular to the axial ray through the system, and focussing means for causing relative movement of the dihedral edge and the image parallel to the axial ray so that the image viewed through the biprismatic body appears duplicated unless the dihedral edge lies substantially in the image plane. Fig. 1 shows a biprism 4 on a support 6 slidable in a tube 7 adjacent the image plane of an objective 1 and an eyepiece 2 for viewing the image. The position at which the dihedral edge 5 coincides with the image is shown on a Scale II which may give directly the range of the object imaged. The biprismatic body may be employed in a reflex type camera and for this purpose may be carried on the plane face of a plane-convex field lens. Alternatively the objective may be moved to effect focussing and may be coupled directly to a camera objective. The biprismatic body may be of the form shown in Fig. 6 or may be in the form of a plane parallel plate wedge shaped at one end.
Patent GB-1505674-A (GB)
Title: Evaporating apparatus
IPC: B01D1/22
Filed: 1976-04-08
Abstract: 1505674 Evaporating apparatus CROFTSHAW (SOLVENTS) Ltd 8 April 1976 [9 April 1975] 14555/75 Heading B1B Evaporator drum 2, sandwiched between condenser drum 1 and residue drum 3, comprises an internally heated evaporator plate 8 having a radial sector-shaped slot 9 and a spreader/scraper arm 11 mounted radially on rotatable shaft 12. Liquid, e.g. contaminated solvent, is delivered intermittently through spout 10 at regular intervals and is spread around the plate 8. Solvent vapour rises into the condenser 1 and the residue on the plate is scraped into the slot 9 falling into the collector 3. Two or more evaporator units may be provided in cascade. Instead of a rotary spreader/scraper, the cyclical action may be obtained by other means, e.g. endless belt with successive spreader and scraper bars.
Patent GB-199235-A (GB)
Title: Improvements in and relating to liquid-containers
IPC: B65D47/06
Filed: 1922-05-24
Abstract: 199,235. Meynell, H. May 24, 1922. Spouts.- An oil or other liquid container a of circular or polygonal cross-section, has a pouring spout or nozzle constructed in detachable sections of convergent form concentric with the axis cf the container and similar in cross-section thereto. The uppermost section c is shown closed by a screw cap d. The container is adapted to be supported, for example, on the side or other surface of a motor car, by means of a spring clip k and a holder l, secured to the surface by screws &c.
Patent GB-397979-A (GB)
Title: Method of and apparatus for the production of composite motion pictures and sound accompaniments therefor
IPC: G03B31/00
Filed: 1932-05-23
Abstract: 397,979. Sound-recording in association with kinematography. UNITED RESEARCH CORPORATION, 41, Van Pelt Street, Long Island, New York, U.S.A.- (Assignees of Jackman, F. W. ; Beverly Hills, California, U.S.A.) May 23, 1932, No. 14630. Convention date, May 23, 1931. [Class 40 (ii).] Composite motion pictures with sound accompaniment are prepared by photographing a background action for the composite picture and recording sound therefor, photographing a foreground action and separately recording the corresponding sounds, combining the foreground and background pictures into a composite motion picture, and combining the separate sound recordings into a composite sound record. The foreground picture component may be photographed in association with the photographic record of the background action to produce thereby a composite motion picture film. A background action 1, Fig. 1, is photographed by a camera 3 and the corresponding sounds are recorded through a microphone 4 which actuates either a disc-record recorder 5 or a sound-film recorder 6 driven in synchronism with the camera driving motor 9. As shown by Fig. 2, the foreground action 2 is illuminated by lamps 10 of a selected colour, such as yellow, and an ultramarine bluecoloured background 11 is illuminated by white light from lamps 12. The camera 13 contains panchromatic negative film before which is placed a positive print, dye-toned yellow, of the background action 1. Alternatively, the background action may be projected upon the screen 11 which is then made translucent, and the composite picture photographed by the camera 13 which is driven synchronously with the machine projecting the background action. The sound corresponding to the foreground action at 2 is recorded upon the disc-record recorder 5 or the sound-film recorder 6. A composite sound record of the separate recordings is effected by an arrangement, as shown by Fig. 4, wherein a series of records 19, 20, 21 corresponds to the foreground sounds and records 22, 23, 24 correspond to the background sounds. The records in each of these series are sequentially connected through pick-ups and switching means 25, 26 to amplifiers A and thence to a mixing device 27, 28, after which the combined sound-recording currents are led either to a disc sound-recorder 5 or a sound-film recorder 6. A synchronously driven projector 31 projects the composite picture film upon a screen 30. A similar arrangement is described for producing the composite sound record from separate recordings on sound record films. By means of connecting plugs 32 provided in each arrangement, the disc record reproducers 22, 23, 24 may be substituted by sound-film reproducers so that sounds recorded on a disc record may be combined with sounds recorded on a film record.
Patent GB-168391-A (GB)
Title: Improvements in apparatus for planing, machining, or grinding propeller blades or other helical, curved or similar surfaces
IPC: B23D3/04
Filed: 1920-05-28
Abstract: 168,391. Stone & Co., Ltd., J., and Larter, W. K. May 28, 1920. Disc wheel and roller apparatus; driving and feed devices. - Maahines for grinding propeller blades and similar helical surfaces have means which may be embodied in an attachment for maintaining the tool at a constant angle to the work. Fig. 1 shows a machine in which the work is fixed to an intermittently-rotated table a and the tool bar i is carried on a saddle h which is reciprocated along the main guide g the feed in the direction of the pitch being operated from screws k, l. A subsidiary guide m, consisting of two parallel bars, is secured by bolts n<1>, n<2> to the front of the main guide g and is slotted at p so that its inclination may be adjusted by a screw r. A saddle t has a lug u confined longitudinally between projection on the tool-bar clamping-plate h<1> and is connected by a link w bell-crank lever x, y and link 2 to the slide 3 movable on a quadrantal guide 4 concentric with the point of the tool 6. The vertical motion of the saddle t during the reciprocation of the tool-bar thus operates the tool-slide to maintain the tool at any required angle to the surface of the work. For propellers of opposite hand, the left-hand end of the subsidiary guide is bolted at n<4> and the guide 4 is shifted through 90‹, the link 2 being in this case attached to the arm y<1> of the bell-crank lever. In the tool-mounting for grinding, Fig. 7, the slide 3 is provided with bearings for a grinding disc 39 driven from a flexible shaft 41. In a modification, the axis of the grinding disc may be arranged parallel to the line of cut.
Patent GB-136112-A (GB)
Title: Improvements in Electrical Insulators.
Inventor: TALL FREDERICK WILLIAM LE
IPC: H01B17/20
Filed: 1919-06-10
Abstract: 136,112. Le Tall, F. W., (Westinghouse Electric & Manufacturing Co.). June 10, 1919. Insulators of the condenser type have insulating parts 4 with bodies 5 conforming to the electric field, while the metallic layers, Fig. 2, or the insulating parts, Fig. 1, are extended to form petticoats 11, 8 conforming to equipotential surfaces in the same field. The metallic layers 10 may be composed of metallic cement, whilst the inmost layer 12 may be extended down to the base of the bolt 6, or may be a close fit to the bolt, which may be composed of wood. The insulating bodies 5 are also substantially at rightangles to the mechanical stresses. Specification 20659/11 is referred to.
Patent GB-1186723-A (GB)
Title: Basically Substituted Bis-Benzimidazole derivatives and process for their manufacture
IPC: B60N2/90
Filed: 1967-03-30
Abstract: 1,186,723. Benzimidazole derivatives. FARBWERKE HOECHST A.G. 30 March, 1967 [1 April, 1966], No. 14681/67. Heading C2C. Novel benzimidazole derivatives of the general Formula (I) in which Ar represents an arylene radical, R 1  represents one or more substituents, which may be the same or different, on the arylene ring, the substituents being selected from H, halogen, hydroxy, lower alkyl, lower alkoxy, lower alkoxyalkoxy, mercapto, lower alkylmercapto, lower alkoxyalkylmercapto, and lower alkylenedioxy radicals, nitro, phenyl amino and lower alkylene diamino which lower alkylene diamino groups may be substituted, by one or more lower alkyl radicals; R 2  represents H, alkyl which may be substituted, carbalkoxy, carbamido, aryl or aralkyl and R 3  represents halogen, lower alkyl or lower alkoxy, wherein in the above a " lower " radical contains 1-4 carbon atoms, and physiologically tolerable salts thereof, are prepared by a variety of known methods involving the formation of either of the imidazole rings from an o-diamine and a carboxylio acid or a derivative thereof or an aldehyde, or the introduction of the piperazine ring, or the transformation of R groups. The following intermediates were obtained consecutively by known methods 2 - Phenyl - 6 - benzimidazole - iminomethylglycol ether hydrochloride is prepared by heating 3,4 - diaminobenzonitrile with ethyl benzimidate in acetic acid, dissolving in methanol, rendering alkaline with ammonia and diluting with water. Pharmaceutical compositions comprise a novel compound of general Formula (I) and a pharmaceutically suitable carrier.