baber/WOPTO huggingface dataset:
Patent GB-893861-A (GB)
Title: Improvements in rotational reduction friction gears
IPC: F16H13/08
Filed: 1957-08-08
Abstract: 893,861. Friction gearing. ANGUS & CO. Ltd., GEORGE, and FEARNS, S. July 31, 1958 [Aug. 8, 1957], No. 25046/57. Class 80 (1). In epicyclic friction reduction gearing comprising a number of similar caged ball or rollerbearings mounted coaxially by their outer races 2 in a cylindrical housing 3, the cage 8 of one being connected to the inner race of the next, helical, rubber or diaphragm spring end loading 22 is provided to increase the contact pressure. As shown, the outer races 2 of three ball-bearings are held against rotation in the housing 3 by corrugated spring bands which allow limited axial movement. An input shaft 15 has a boss 7 carrying the split inner race of the first bearing whose cage 8 is integral with a sleeve carrying the split inner race of the second bearing. Similarly the cage 8 of the second bearing drives the split inner race of the third bearing, whose cage drives the output shaft 12. Opposed pairs of dished spring washers 22 are provided to load the split inner races. In a modification the outer races are split and are loaded by helical springs. In this construction the gearing is mounted on the end of a motor, and successive cages and inner races are coupled by tongues on the cages engaging slots in the races. In other modifications double row oblique contact ball-bearings are used, only one row of which need be caged. Alternatively, tapered roller bearings may be used.
Patent GB-674337-A (GB)
Title: Improvements in and relating to devices for examining diesel engine injectors and other articles
IPC: G01B11/30
Filed: 1949-09-29
Abstract: 674,337. Optical apparatus. HARTRIDGE, L. Sept. 11, 1950 [Sept. 29, 1949], No. 25072/49. Class 97 (i). A device for examining the surfaces of small articles comprises a lamp house having a flat base adapted to rest on a table and having a light aperture in a side wall thereof, means on said side wall to support an article for examination adjacent said light aperture, and optical magnifying means on said side wall positioned adjacent said aperture to produce a magnified image of the surface under examination. The device shown comprises a hollow, pyramidal lamp-house 4 having a light source 10 therein from which light passes out of the lamp house through oppositely disposed apertures 7 and 8 and an aperture 9. Spring clips 11 are mounted adjacent each aperture 7 and 8 for holding the outside under test, e.g. an open or closed ended nozzle NO or NC. Nozzle NO is mounted so that light from aperture 7 enters the bore thereof obliquely and an eyepiece 12 is mounted on a bracket 13 for receiving the bore. Light from the aperture 8 is directed by a reflector 15 obliquely into the bore of nozzle NC which is disposed vertically. This reflector is formed on a support 14 carrying another eyepiece 12 and a diaphragm 14a. Adjacent the aperture 9 is a microscope 17 slidably mounted in a support 18 and below the microscope is a vertically adjustable mount 23 having pivoted thereto a bar 22 carrying slidable supports 21 for a needle N, the external surface of which is to be examined.
Patent GB-412167-A (GB)
Title: Improvements in or relating to protective cut-out arrangements associated with the earthing of electrical apparatus
IPC: H02H7/00
Filed: 1932-09-09
Abstract: 412,167. Protective cut-out arrangements. SWITCHGEAR & COWANS, Ltd., and NEEP, G. H., Elsinore Road, Old Trafford, Manchester. Sept. 9, 1932, No. 25126. [Class 38 (v).] A protective system associated with a safetyearthing circuit, for example, for electricallydriven mining apparatus, comprises the provision of a current rectifier or rectifiers in the earth circuit whereby, on a short-circuit occurring between an earth core and pilot wire forming part of said circuit, the value or nature of the current in that circuit will be so altered that an automatic trip device therein opens, or prevents closing of, the power circuit. An earth lead 10 connects the frames 3, 4 of the main switch and apparatus, respectively, and forms with a pilot wire 7 a circuit to a control switch 9 from a transformer 6. The coil 5 of the trip device is connected between 7 and the mid point 6<c> of the secondary 6b. Rectifiers 8, 11, which may be of the metal type, are connected as shown normally to supply full-wave current to coil 5, but if a short-circuit occurs between 7, 10, the rectifier 8 will be short-circuited, and 5 will be fed with half-wave rectified current and A.C. in opposition thereto, whereby it is rendered ineffective to close, or hold closed, the main switch. In a modification, Fig. 2 (not shown), 8 is placed in series with 5 across the entire secondary 6b so as normally to be fed with half-wave current, but on a short-circuit occurring, 5 will be fed with A.C. of reduced value due to the circuit reactance. Specification 209,831, [Class 38 (v)], is referred to. Reference has been directed by the Comptroller to Specification 378,180.
Patent GB-1202508-A (GB)
Title: Device for the explosion shaping of a workpiece
IPC: B21D26/08
Filed: 1969-05-16
Abstract: 1,202,508. Explosive forming. BOHLER & CO. A.G. GEB. 16 May, 1969 [17 May, 1968] No. 25196/69. Heading B3Q. Explosive forming apparatus comprises a base-plate 4, an anvil 2 spaced from plate 4 by spring means 6, and means 8 for maintaining a layer of liquid, e.g. water, between the plate 4 and anvil 2 to act as a damping cushion that may be expelled laterally. A hollow cylinder 1, to be expanded by an explosive detonated in its base, is placed or clamped on the anvil 2. Plungers 5 on the anvil slide in guide passages 3 in the plate 4 on which one or more springs are mounted. Guide rods may be arranged on the plate 4 for passage through bores in the anvil 2. The sides of the container 8 are protected by a screen of air bubbles 10. A cylindrical container may be used which may be filled with water to the level of the anvil 2, the crankpiece being above the water level.
Patent GB-1357532-A (GB)
Title: Art of moulding
IPC: B29C45/04
Filed: 1970-07-17
Abstract: 1357532 Moulding containers AIRFIX INDUSTRIES Ltd 2 July 1971 [17 July 1970 9 Dec 1970 12 Jan 1971] 25319/73 25320/73 and 25321/73 Divided out of 1357531 Heading B5A [Also in Division B6] The subject-matter is the same as that of Specification 1,357,531, but the claims are directed to the moulding machine.
Patent GB-675876-A (GB)
Title: Improvements relating to key operated electric switches for automobiles
IPC: H01H27/06
Filed: 1949-10-03
Abstract: 675,876. Key-operated mechanical switches, without quick action. HAMMOND, E. Sept. 21, 1950. [Oct. 3, 1949] No. 25345/49. Class 38 (v). A key-operated ignition switch for an automobile has a spring to eject the key when the switch is turned off, so that a driver cannot leave the key in the switch after switching off the ignition. In Fig. 2, the switch is actuated by a key which fits over the operating shaft k. A spring m surrounding the shaft k has to be compressed by the end of the key before the key can be inserted far enough to bring it in line with wards (not shown) to enable it to be turned. Shoulders n on the key engage with the sides of the aperture o through which the key is inserted, to prevent the ejection of the key when the switch is "on". The switch has a moving contact a which when the switch is "on" co-operates with a fixed contact to complete the battery-earth connection and when the switch is "off" engages a second fixed contact to earth the ignition coil and distributor in addition to opening the batteryearth connection to interrupt the supply. An auxiliary switch constituted by a knurled ring q with contact strips s co-operating with fixed contacts t is provided to permit parking lights to be switched on while the ignition switch is off and the main battery-earth connection is open.
Patent GB-898546-A (GB)
Title: Portable-sewing-machine table
IPC: A47B29/00
Filed: 1960-07-20
Abstract: 898,546. Tables. TYPE-WRITE DESK MFG. CO. Inc. July 20, 1960 [July 20, 1959], No. 25351/60. Class 52(3 A table top with interconnected hinged leaves 11, 12, 13 is fixed to the lower table top 20 by spacers 23 and other suitable means so that the notch 16 can receive the base of a "free-arm" sewing-machine 17 and form a co-planar table around it and when necessary may be folded away. from it. The hinges along the edge 18 are on the upper surface and along the edge 19 are on the lower surface to allow folding in the appropriate directions. The legs 30 are mounted on hinges so as to fold against the surface 20.
Patent GB-246224-A (GB)
Title: Improvements in or relating to rolling mills
IPC: B21B1/20
Filed: 1924-10-24
Abstract: 246,224. Davies, E. W. Oct. 24, 1924. Rolling.-A rolling-mill for eliminating free passes comprises two pairs of rolls 4, 5, and 7, 8, which are preferably intergeared so that each pair rotates in opposite directions, each pair having draft grooves 9 and wider clearance grooves 11 so that the work may pass freely through the clearance grooves of the first pair while being rolled down by the aligned draft grooves of the second pair, after which rolling, the work is passed back through clearance grooves of the second pair and rolled down in draft grooves of the first pair.
Patent GB-423569-A (GB)
Title: Improvements in or relating to printing mechanism for computing and printing machines
IPC: B41J3/00
Filed: 1934-09-06
Abstract: 423,569. Typewriters &c. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Underwood Elliott Fisher Co.; 342, Madison Avenue, New York, U.S.A.) Sept. 6, 1934, No. 25698. [Class 100 (iv)] Type-lever machines ; type-carriages.- A computing-printing machine having reciprocatory type-bars for printing amounts is provided with a laterally movable set of type-levers, or typebars having actuating-means movable therewith, for printing words, dates, &c., in association with the amounts. The machine shown in Figs. 1 and 3 comprises keys 4 for setting type-bars 8 arranged in front of a platen 7 supported by a carriage 5. For printing words &c., the machine is provided with a type-carriage 10 which runs on rails 14, 15 on the framework 2 and supports keylevers 18, and down-strike typelevers 30 having the same printing line as the type-bars 8. The key-levers are pivoted on a rod 19 and have pin-and-slot connection 34 with sub-levers 31 which are connected by links 32 to the type-levers. To provide for visible typing, the actions are arranged in two separate groups, and a cover 29 for the actions is provided at the middle with an opening. The typecarriage is urged towards the right by means of a spring drum 39, and is associated with the letter - spacing and tabulating mechanism described below. The type-levers can be employed for typing words &c., at either the left or right side of the sheet, the paper-carriage 5 being moved over to the right or left before typing is commenced. Letter-spacing mechanism; carriage-releasing arrangements ; tabulating-mechanism.-An escapement wheel 44 on the type-carriage 10 is provided with a pinion co-operating with a stationary rack 42. The escapement wheel co-operates with fast and loose dogs on horizontally swinging rocker 45 connected to a universal bar 60 operated by the key-levers 18 and a space-bar 63. A tabulating keylever 65 on the type-carriage is arranged to depress the rocker 45 and thereby release the type-carriage. The tabulating key-lever is arranged also to rock a shaft 72, and thereby move adjustable column-stops 75 on the. shaft into position for engaging a stationary stop 77. Ink-ribbon mechanism.-The type-levers 30, Fig. 3, strike an ink ribbon 81 which is wound on spools on the type-carriage 10 and passes through a slidable vibrator 85, operated by a bell-crank 87 in connection with the universal bar 60. The type-bars 8 strike a ribbon 95.
Patent GB-1447438-A (GB)
Title: Locks
IPC: E05B65/52
Filed: 1974-06-10
Abstract: 1447438 Locks GREGOR HOFBAUER OHG 10 June 1974 [8 June 1973] 25724/74 Heading E2A A lock I for a container provided with a hinged handle 2 and comprising two container parts 3, 4 includes a bolt 5 and an operating device, e.g. a push-button 6, mountable on one part 4, a keeper 7 mountable on the other part 3 and a safety device the arrangement being such that, in use, with the handle 2 in its carrying position the safety device prevents withdrawal of the bolt 5 from the keeper 5 and with the handle 2 pivoted to one side away from the carrying position the bolt 5 can be withdrawn from the keeper 7 by operation of the operating device. As shown the safety device comprises a transmission lever 9 pivotable about opposed surfaces of the lock casing and a bolt lever 26 supported on a fulcrum on the lever 9, movable along the lever 9 and carrying the bolt 5 at one end thereof. The two levers 9, 26 are connected by a spring and the range of pivoting movement of the bolt lever 26 relative to the lever 9 is limited by straps on the lever 9. Movement of the bolt 5 from the keeper 7 is achieved by a "breaking" of the strip comprising two levers (Fig. 5, not shown). The handle 2 carries a can 45 which co-operates with a projection 42 of the bolt lever 26 such that in the carrying position of the handle the combination of the two levers 9, 26 is pivoted to a position (Fig. 8) from which it cannot be moved by the push-button 6, the projection 42 being urged into engagement with the can 45 by a spring 46. Rotation of the cam urges the projection downward (Fig. 8) against its spring loading to pivot the aforesaid combination into its operative condition. A key operated locking member 48 is also provided the forward end of a locking bar 39 thereof engaging in a groove of the transmission lever to hold the same against pivotable movement.
Patent GB-964127-A (GB)
IPC: C07C4/10
Filed: 1962-07-05
Abstract: Allene and methyl acetylene are prepared by contacting propylene and/or isobutylene with a catalyst comprising metallic silver, for example silver gauze or silver deposited on an inert carrier such as carbon, at elevated temperature, for example 800-900 DEG  C. and thereafter quickly cooling the allene and methyl acetylene to below 500 DEG  C., for example by passing into water. The allene and methyl acetylene may be separated.  The starting gases may be diluted with steam or an inert gas.  U.S.A. Specification 2,925,451 is referred to.
Patent GB-518792-A (GB)
Title: Sedimentation apparatus
IPC: B01D21/00
Filed: 1938-09-05
Abstract: 518,792. Gravity - separation apparatus. STEINDORF, R. T. Sept. 5, 1938, No 25885. [Class 111] Organic and inorganic solid matter settling in a settling-tank is collected by a conveyer and lifted to a conduit above by which it is passed to a washing chamber fitted with an agitator which causes the separation of the lighter organic from the heavier inorganic matter. As shown, each of a pair of settling- chambers 11 arranged side-by-side is provided with an endless conveyer the buckets 16 of which collect sludge from the floor of the chamber and discharge it into an inclined trough 26. Aided by sprays from nozzles 55 the sludge flows down the trough into a washing or separating chamber 40 having an inclined box 43 and a vertical baffle 46. The sludge is agitated by a screw 47. and the inorganic matter settles and is raised by the screw to an outlet 51. Organic matter is carried away by the liquid through an outlet and returned to the liquid leaving the settling-chambers.
Patent GB-1121964-A (GB)
Title: Improvements in or relating to method for tinting coating compositions
IPC: C09D7/80
Filed: 1966-06-10
Abstract: Either water or oil based coating compositions can be tinted by dispersing in an amount of water not exceeding 5% of the volume of the coating composition a dry powdered mixture of a particulate pigment and a surface-active agent, the latter being such that the powder is readily dispersible in water to give a dispersion emulsifiable in oil-based compositions and dispersible in water-based compositions, adding the resulting dispersion to the coating composition, and agitating the mix.  The surface-active agent may be sodium lauryl sulphate in an amount up to 15% by weight, based on the pigment weight.  The pigment may be ochre and may be extended with calcium carbonate, both of 0.1-30 microns particle size.
Patent GB-1070017-A (GB)
Title: Operating device for a pivoted window
Inventor: GRANGE KENNETH
IPC: E05C17/18
Filed: 1963-07-01
Abstract: 1,070,017. Stays for hinged articles. HENRY HOPE & SONS Ltd. June 30, 1964 [July 1, 1963], No. 25973/63. Heading E2F. A stay bar 5 is pivotally attached to a window horizontally pivoted about its upper frame member, and passes through a plug 9 rotatably mounted within a block 7 attached to a fixed frame 8. Apertures or slots 5b in the stay 5 engage with a projection 9b of the internal passage of plug 9 to hold the window in various open positions. The body 7 and plug 9 are provided with suitable recesses (7b, 9c Fig. 4) to allow the stay to be pivoted to one side in the closed position.
Patent GB-986518-A (GB)
Title: Planar-hall device
IPC: G11C11/18
Filed: 1962-07-06
Abstract: 986,518. Magnetic storage devices. NORTH AMERICAN AVIATION Inc. July 6, 1962 [July 10, 1961], No. 25981/62. Heading H1T. [Also in Division H3] An easy axis thin film device having a memory function with non-destructive read-out has sources of current connected to conductors arranged, when energized, to generate magnetic fields in the film in the easy and hard directions respectively, means being provided for causing a current to flow through the film, a (Hall effect) read-out signal being obtained either by causing such a current to flow through the film or by a signal from the appropriate source producing a magnetic field in the hard direction. The device is usable as a magnetic memory or as an " and " or an " or " gate and comprises a conductive ferromagnetic thin film provided with pairs of terminals 14, 16 (Fig. 3) and 24, 26 arranged on perpendicular axes parallel to the easy and hard directions of magnetization so that when a current is passed through the film between one pair of contacts e.g. 24, 26 and the magnetic vector in the film is at an angle to the current direction an output voltage appears between the other pair of electrodes 14, 16. The film may be on a glass or insulated metal substrate and may have conductive distributing strips 25, 27 (Fig. 1, not shown) directing the current from terminals 24, 26. The polarity of the output voltage depends on the direction os remanent magnetization non-destructive read-out of the information stored in the film by a wide write-in conductor 18 being obtained by turning the magnetic vector at an angle to the easy axis by means of a cross field and passing a current through the film. The cross field may be produced by a continuous current or a pulse in a wide interrogating conductor 20 or by a permanent magnet. With a continuous current in 20 a voltage output pulse may be obtained by pulsing the current in the film. The device can be used as an " and " or an " or " gate since a zero effect is produced if either the current in the film or the cross field current is absent while an output is obtained if both currents are present. It can also be so used if the write-in and cross field conductors are arranged at e.g. 45 degrees to the easy axis, current in either conductor then producing an output if a continuous current .is passed through the film. A plurality of devices may be arranged in a potted matrix (Division H3).
Patent GB-884233-A (GB)
Title: Improvements in or relating to a variable ratio transmission unit, more particularlyfor motor vehicles
IPC: F16H61/02
Filed: 1959-07-29
Abstract: 884,233. Change-speed control; clutches. SIGURET, P., and PORNIN, H. July 29, 1959 [July 31, 1958], No. 26019/59. Class 80 (2). A transmission, particularly for a vehicle, comprises a variable-speed gear in which speed changes are initiated by positive clutches controlled by electromagnetically operated axially movable plungers serving as clutch locking or moving elements. The two-speed gear unit shown in Fig. 1 comprises input and output shafts 2, 7 with pinions 1, 6 meshing with pinions 3, 5 on a layshaft 4, and two electromagnet assemblies 10, 11 for establishing a direct drive and gear drive respectively. For direct drive coil 12 is first energized to establish synchronism between shafts 2, 7 by an armature 18 provided with recesses 21, the engagement of balls 22 with which operates electric contacts 27, 28 to energize coil 13, thereby causing axial displacement of an armature 15 and the forcing of plungers 17 into armature openings 20 to lock shafts 2, 7. Coils 12a, 13a of assembly 11 are operated in a similar manner to establish synchronism and locking of pinion 6 and shaft 7 for gear drive. The transmission shown in Fig. 2 comprises an electromagnetically operated main clutch 30, a unit with electromagnets 10, 11 operating as previously described to establish second and third gears, and a second unit with an electromagnet 37 for first gear and a sliding pinion 5b for reverse drive. In this case the locking plungers 17, 17a are integral with the axially movable armature 15. The main clutch is supplied with current from the vehicle dynamo and the magnets 10, 11, 37 from the battery, under manual or automatic control. Fig. 3 shows a manually operated switch arrangement consisting of three studs I, II, III for the respective ratios, and each provided with three contacts connected to the battery, main clutch winding 31, and the appropriate one of the magnets 10, 11, 37. In automatic arrangements, Figs. 5 and 6 (not shown), energizing of the magnets is controlled by a rotary contact arm (82) driven in accordance with engine speed. In a further transmission. Fig. 7 (not shown), the plungers (123, 124, 125) operate dog-clutch elements.
Patent GB-465250-A (GB)
Title: Improvements in or relating to electrical speed-indicators for extrusion presses for metal tubes and rods
IPC: B21C31/00
Filed: 1936-09-25
Abstract: 465,250. Electric signalling systems. SCHLOEMANN AKT.-GES. Sept. 25, 1936, No. 26040. Convention date, Nov. 19, 1935. [Class 40 (i)] An electrical impulse-measuring device is employed to produce a readable voltage corresponding to the speed of the ram of a press for extruding metal tubes and rods, the device being actuated by a member moving with the ram. The ram 1 carries a bracket 2 supporting a rack 3 the teeth of which engage a contact spring 4 whereby a relay 5 is successively energized and de-energized at a frequency which varies with the ram speed. Upon energization of the relay 5, contacts 6, 7 are closed and a condenser 9 is charged from a source of current 10. Upon de-energization, contacts 6, 8 are closed, and the condenser 9 is discharged through a variable resistance 18 and a circuit comprising condensers 11, 12, 13, and resistances 14, 15, 16 to give a reading on the voltmeter 17, the smoothed impulses giving a steady reading which increases with the speed of the ram. The characteristic of the device is such that low speeds are indicated on a larger scale than the higher speeds. The inertia of the spring 4 may be such that, in the event of excessive speeds of the ram, the spring remains out of contact with the teeth of the rack 3.