baber/WOPTO huggingface dataset:
Patent GB-1145144-A (GB)
Title: Photographic products and processes
IPC: G03C8/08
Filed: 1966-05-02
Abstract: 1,145,144. Photographic diffusion transfer processes. INTERNATIONAL POLAROID CORP. May 2, 1966 [May 12, 1965], No. 19241/66. Heading G2C. A photographic diffusion transfer process comprises imagewise exposing a photographic material containing a silver halide emulsion, contacting the emulsion with an aqueous alkaline solution to initiate development of the latent image with a developer containing a dihydroxybenzene benzene group and having at least one unsubstituted carbon atom ortho to one of the hydroxy groups, the developer being oxidized when used in development, and reducing the mobility of the oxidized developer with the emulsion by reacting it with a colour coupler having a methine or methylene group substituted by at least one activating group but being uncharged. The developer is preferably a dye developer and the developer and coupler are preferably incorporated in the emulsion but it is claimed that both dye developer and coupler may be in the processing solution. The photographic material may be a multi-layer one used in the production of multi-colour images as disclosed in Specification 804, 972. The alkaline processing solution may contain an auxiliary developer such as 4'-methyl phenylhydroquinone.
Patent GB-264407-A (GB)
Title: Improvements relating to valve gear for internal combustion engines
IPC: F01L1/12
Filed: 1926-08-04
Abstract: 264,407. Newson, S. C., and Laystall Motor Engineering Works, Ltd. Aug. 4,1926. Regulating.-The timing of the inlet and exhaust valves is varied, either bv hander automatically, by adjustment 0 f the e eccentricallymounted fulcrum c of a locker d interposed between the cam h and valve tappet or lever g.
Patent GB-596615-A (GB)
Title: Improvements to rotary compressors
IPC: F04C18/352
Filed: 1945-07-27
Abstract: 596,615. Rotary compressors. SHORROCK, C. July 27, 1945, No. 19320. [Class 110 (ii)] In a rotary compressor wherein flat vanes are slidably arranged in slots in trunnions mounted for oscillation in a light alloy rotor, parts of at least two materials are interposed between the vane and the rotor so that the bearing surfaces provide a combination of a hard metal and either a non-metallic wear-resisting material or the light alloy. The trunnion, Fig. 1, has a hard metallic outer sleeve 5 with a core 6 of light bonded material such as phenolic synthetic resin-impregnated fabric or similar material with an asbestos base. In an alternative construction, the outer sleeve 5 is eliminated and separate hard metal bearing surfaces are secured in the rotor to receive the trunnion. These two constructions may be combined, i.e., the separate bearing surfaces may be additional to the use of the outer sleeve 5. Specifications 16093/95, 14868/02, [both in Class 110], and 194,695, [Class 110 (ii)], are referred to.
Patent GB-1421365-A (GB)
Title: Antenna arrangements for use with electromagnetic field  measuring devices
IPC: H01Q23/00
Filed: 1973-04-24
Abstract: 1421365 Measuring electromagnetic radiation R R BOWMAN E B LARSEN and D R BELSHER [trading as BLB CO] 24 April 1973 19487/73 Heading G1U [Also in Divisions H3-H5] For measuring electromagnetic fields, three mutually orthogonal antenna are provided, having a common centre at which are disposed three detectors, one for each antenna, the detector outputs being led away via high resistance transmission lines. The detectors may be diodes, light-emitting diodes associated with photosensitive devices, thermocouples, thermistors, barretters, ion-tubes or Golay cells. The transmission lines 22 are preferably led away at equal angles to all three antennae to avoid disturbing the measured field, and are connected to a measuring station where the sum of the squares of the three components is determined. When diodes are used as detectors and dipoles as the antennae, the diode connects the dipole halves and the transmission line and the diode leads are imbedded inside the hollow dipole using conductive adhesive. Magnetic dipole loops may also be used.
Patent GB-147524-A (GB)
Title: Improvements in and relating to winches for automatic grabs
IPC: B66C3/12
Filed: 1920-07-08
Abstract: 147,524. Soc. de Construction et de Location d'Appareils de Levage et de Materiel de Travaux Publics. April 8, 1916, [Convention date]. Apparatus with jointly-controllable drums. - The opening-drum 11 of a double-chain grab is connected to the hoisting-drum 1 through epioyclic gearing, the grab being opened when the drum 11 is held against rotation by a brake 18. The drum 11 carries planet-pinions 13 gearing with an internally-toothed ring 8 driven from the hoisting-drum and with a sun pinion 15 fixed on the shaft 10. The shaft 10 is always lightly braked at 20 to prevent slack in the opening- chain, and is provided with another brake 16 operated alternately with the brake 18. Thus for hoisting and lowering the grab, the brake 16 is applied and the brake 18 is free; for opening the grab, the brake 16 is free and the brake 18 is applied. The brakes 16, 18 are operated by solenoids 17, 19.
Patent GB-596555-A (GB)
Title: Improvements in or relating to typewriters
IPC: B41J7/90
Filed: 1945-07-30
Abstract: 596,555. Typewriters. HARRISON, H. M. July 30, 1945, No. 19501. [Class 100 (iv)] Letter-spacing mechanism.-In a typewriter comprising a movable platen carriage operated by an escapement mechanism, and mechanism operated by type levers having each a number of type heads thereon, for moving the carriage selectively in single-space and double-space intervals, the type heads carry a number of letters arranged individually and in pairs, and settable mechanism is interposed between the type levers and the escapement mechanism for selectively actuating the same in single-space intervals or double-space intervals on actuation of the type levers. The escapement comprises a toothed wheel 46 engaged alternately by pawls 45, 45A on a plate 44 rocked about a pivot 47, one complete oscillation resulting in a single-space movement of the carriage. The plate 44 is actuated from a type lever 4 which strikes an anvil 53 acting on a lever 36 fixed to a pivoted rod 38 and connected to the plate 44 by a rod 41. The anvil 53 acts through toggles 24 for single-spacing and through toggles 32 for double-spacing, the toggles to be active being straightened by depressing a shift key 15 on the end of a lever 14 fixed to a shaft 9 carrying an arm 18 to which rods 21, 22 connected to the toggle hinges are fixed. In double-spacing, an arm 31 integral with the anvil oscillates about a dead centre whereby the lever 36 is given a double oscillation.
Patent GB-335279-A (GB)
Title: Improvements in or relating to lighting systems for vehicles
IPC: B60Q1/24
Filed: 1929-06-25
Abstract: 335,279. Tatnell, W. J. June 25, 1929. Lighting, systems of; vehicle lamps.-In a system of lighting for road vehicles the ordinary headlights are dispensed with and one or more lamps are arranged about midway of the length of the vehicle, one or more of the lamps being disposed above the body of the vehicle, so as to project light on to the road ahead of the vehicle, on to the roof or other upper part of the vehicle. and on to one or both sides of the vehicle and the road adjacent thereto. In the form shown in Figs. 1 and 3, a main lamp arranged centrally above the roof of the vehicle comprises an electric lamp bulb 10 and a reflector 18 for projecting light on to the road ahead of the vehicle, and an electric lamp bulb 11 and a reflector 19 for projecting light on to the roof of the vehicle and also into the interior of the vehicle through a roof window 20 provided with a shutter or its equivalent. Brackets 21 have inclined portions 27 carrying electric lamp bulbs 12, 13, each of which is provided with a top reflecting portion 28 for projecting light on to the roof of the vehicle, and a side reflecting portion 29 for projecting light on to the side of the vehicle. These side lamps may be provided with front lenses 30 and with red rear lenses. The reflector 19 may be so arranged as to project light down the rear of the vehicle, or additional lamps, suitably screened so as not to show to the front or rear of the vehicle, may be employed for illuminating the rear or other part of the vehicle and the road adjacent thereto. Instead of being arranged centrally the main lamps may be arranged on each side of the vehicle, in which case each bulb 11 and reflector 19 may be arranged to illuminate one side as well as part of the roof of the vehicle, and the side lamps dispensed with.
Patent GB-627171-A (GB)
Title: Improvements in or relating to staples
IPC: G09F3/12
Filed: 1947-07-22
Abstract: 627,171. Staples. BOSTON WIRE STITCHER CO. July 22, 1947, No. 19599. Convention date, Oct. 19, 1946. [Class 89 (ii)] Staples for connecting a number of small articles together or for attaching them to cards are made in the form of a connected series of circular arcs 2, 3, 4. When made from wire the ends 5 are pointed by cutting the wire obliquely and are offset from the plane of the centre portion to ensure that, when closed into ring form, the parts 3, 4 overlap as shown in Fig. 4. A number of the staples may be connected side by side to facilitate use in a stapling-machine and they may also be employed for connecting wires to form open mesh screens, or for attaching coil springs in the manufacture of mattresses' &c.
Patent GB-766872-A (GB)
Title: Improvements in or relating to cowls for flues and ventilating ducts
IPC: F23L17/10
Filed: 1952-08-06
Abstract: 766,872. Flue and ventilating duct cowls. LACHMANN, G. V. Oct. 28, 1953 [Aug. 6, 1952], No. 19759/52. Class 25 A continuously convexly curved surfaced cowl is apertured in such a manner that for any direction of the outer flow, e.g. wind flow, there will be produced over the major portion of the cowl's surface a static pressure below the free-stream static pressure of the outer flow. The cowl shown in Fig. 1 comprises a hollow cylindrical shaft 1 having a hemispherical dome 2 and longitudinally arranged slits 4 partly edged with protuberances 5. A ridge 3 connects shaft and dome. In the modified cowl of Fig. 2, the ridge 3 is formed by a wire ring 15 and inclined strips 16 are fixed inside the cowl to prevent any rain which may enter slits similar to 4, reaching the flue 12. The cowl shown in Fig. 3 comprises an elliptical cross-sectioned shaft 20 arranged over three square cross-sectioned flues 17, 18, 19, the shaft having slots 22 provided with flanges 20a and a detachable lid 23 in its half-ellipsoidal dome cap 21. Any rain entering the cowl is kept from the flues by a hollow elliptical cross-sectioned screen 24. A screen similar to 24 but of circular cross-section may be provided in a cowl having a cylindrical shaft. Detachable lids such as 23 may be provided in other cowl forms. The shaft of cowl 29, Fig. 4, covering four square cross-sectioned flues, is formed of vertical members 30 of lenticular cross-section topped by a dome 31. The cowl, Fig. 5, has a perforated shaft 33 closed by a dome 34, a wind-directed rotatable shaft 35 mounting a curved shield 38 being fitted such that apertures on the windward side of the shaft are shielded. In a modification of this cowl, the shield 38 comprises two half-portions spring-urged against the inner surface of the shaft 33. The cowl of Fig. 7 comprises a fixed perforate shaft 44 and a rotatable wind-directed partly perforate shaft 43, the wind-vane 46 being so arranged that the imperforate portion 45 of shaft 43 shields the apertures of 44 on the windward side..
Patent GB-314447-A (GB)
Title: Improvements in the colouration of artificial materials made of or containing cellulose esters
IPC: D06P3/42
Filed: 1929-06-27
Abstract: 314,447. British Celanese, Ltd., (Assignees of Platt, H., and Dreyfus, C.). June 27, 1928, [Convention date]. Yarns &c., treating with liquids.-In a modification of the processes of Specifications 304,596 and 309,377 for the superficial saponification of fabrics, yarns, &c. made of or containing organic esters of cellulose, strong alkaline solutions, preferably concentrations corresponding to 5-20 per cent of caustic soda, are used, at temperatures below 35‹ C. The safe ironing point of the material is raised, particularly when a 20 per cent concentration is used.
Patent GB-586804-A (GB)
Title: Improvements in apparatus for spreading or distributing insecticide powders, artificial manure, dressings and the like
IPC: A01M9/00
Filed: 1944-10-13
Abstract: 586,804. Manure distributors. HIGGINS, G. W., and ALLMAN, E. J. Oct. 13, 1944, Nos. 19846/44 and 18891/45. [Class 6 (i)] Insecticides, manures &c. in a container 1 are sprayed over land by means of the exhaust gases of an internal combustion engine which acts as an ejector to induce a flow of the powder from the container and eject it through a tube 32 which delivers it through the orifices of a distributor pipe 33. The apparatus may be mounted, for example, on the draw bar of an agricultural tractor. The engine exhaust at 27 is directed by flap valve 29 to a branch pipe 25 through a flexible tube 25 coupled at 23 to a tube 22 provided with a venturi passage 21. The gases suck the powder from the container 1 through an adjustable valve 10 and deliver it to a forked tube 32 leaving by a flexible tube 32<SP>1</SP>, Fig. 4, to a horizontal pipe 33 provided with keyhole orifices 34. These orifices are masked as desired by individual spring clips 35 provided with similar orifices and movable to provide variable side openings. The distributing apparatus is carried by a frame 37 pivoted about bolts 39, Fig. 5, on the vehicle and held in position by pins 42 fitted into one or other of the holes in a disc 40 fixed on the frame 37, 38. This adjustment allows the distributor pipe 33 to rise freely over uneven ground, but fixes its lower limit of position. The powder valve 10 is adjustable towards or from its seat 9 by means of a hand wheel 15 whereby cams 12 raise or lower a head 16 of a rod 11 jointed to the valve 10. To stop distributing, the flap valve 29 is moved by handle 30 to deflect the exhaust gases to atmosphere through exhaust 28.
Patent GB-771892-A (GB)
Title: Improvements in and relating to slide tracks for machine tools
IPC: B23Q1/30
Filed: 1954-07-07
Abstract: 771,892. Face-plates and tables; lubricating slides. ESCHER WYSS AKT.-GES. July 7, 1954 [July 16, 1953], No. 19944/54. Class 83 (3). [Also in Group XXXIV] A slide-track 2, Fig. 1, e.g. for the face-plate 9, Fig. 2, of a vertical-lathe, has distributed therein a number of pressure-chambers 4 filled with lubricant and enclosed by guidetracks 2<SP>1</SP>, there being a number of lubricant feed-devices 6, each being separately connected to at least one of the chambers to maintain a film 14 between the guide-tracks and the plate. The plate may be supported additionally by a slide-track 1 having chambers 3 similarly fed with lubricant. The quantities of lubricant supplied to the feed-devices 6, while maintaining a substantially constant ratio between each other, are varied in dependence on the sliding-speed of the plate, whereby the thickness of film 14 remains constant. Pumps 8 supply the conduits 12 from a reservoir to which the lubricant is returned via channels 15. A single pump may supply all the chambers through distributing means, and the thickness of the film may be measured by a feeler which regulates the pump. A supply-system comprises a battery of pumps 36, Fig. 5, driven from a common shaft 37, having feed-devices 35, and drawing lubricant from reservoir 38. Shaft 37 is coupled to a shaft 37a connected by gears 48, 47 to a shaft 37b. A motor 45 is coupled to shaft 37b through a free-wheel 53 and the motor 40, which drives the face-plate 29, is coupled to said shaft through a free-wheel 54, whereby the pumps are driven by motor 45 when the face-plate is stationary or when motor 40 is rotating at a lower speed than motor 45. For rotation of motor 40 and the face-plate in the opposite direction, shaft 37 is driven by motor 40, when its speed exceeds that of motor 45, by gearing 50 and a freewheel 55.
Patent GB-639979-A (GB)
Title: Improvements relating to plug and socket connectors for electric cables
IPC: H01R13/648
Filed: 1948-07-28
Abstract: 639,979. Two-part couplings. VICTOR PRODUCTS (WALLSEND), Ltd., and WILES, R. C. July 28, 1948, No. 20172. [Class 38 (i)] In a plug and socket connector for connecting lengths of cable together, as shown, or for making terminal connections, and wherein earth continuity is maintained through the metal body of the' connector, the earth wire 29 of the cable 10 or 15 is partly enclosed in a channel-shaped metal washer 28 gripped between a cable-gland housing 26 and the body 6 or 7 of the plug or socket, earth contact between the two bodies being ensured by a scraper ring contact 23 secured in the body 7. Housing 26 and the connector body are in screwthreaded engagement and the latter has sharpened pins 32 thereon which engage washer 28 and prevent it rotating as the housing is tightened up. A set-screw 33 in the housing is then screwed up to bite into the washer to prevent the housing unscrewing. The body portions 6, 7 carry insulating plugs 11, 14 housing sockets and pins respectively, the two bodies being secured together by a screw ring 8. Slots and keys 18, 19 on the plug and socket respectively prevent the plugs 11, 14 from rotating in the body portions and the latter are located for correct interengagement by a slot and key 21, 22. In each housing 26 a gland ring 36 is compressed on to the cable by a nut 37.
Patent GB-1236363-A (GB)
Title: Fixing for simplifying assembly of components
IPC: F16B9/02
Filed: 1969-04-21
Abstract: 1,236,363. Stud and socket fasteners. FORD MOTOR CO. Ltd. 21 April, 1969 [2 May, 1968], No. 20194/69. Heading E2B. A fastening device for a fixing bolt 5 provided with mutually opposite barb-like stops 4 comprises a base-plate 1' provided with clip tongues 3' punched from legs 2' of the base plate and converging towards one another and extending away from the base-plate, the clip tongues being arranged to secure the bolt 5 at mutually opposite sides after the bolt has been passed between the tongues and to allow removal of the bolt when the latter is rotated through substantially 90 degrees. The device is retained in an aperture in a pressing by means of holding tongues 7, 9 bent out of the baseplate and by a tongue 10.
Patent GB-747503-A (GB)
Title: Improvements in or relating to apparatus for detecting the presence or absence of a conductive or magnetic object
IPC: E21B47/09
Filed: 1953-07-21
Abstract: 747,503. Electric tests. GENERAL ELECTRIC CO., Ltd., and THOMPSON, W. G. June 24, 1954 [July 21, 1953], No. 20229/53. Class 37. Apparatus for indicating the passage of conductive or magnetic bodies by means of an A.C. fed transformer 4 (Fig. 1) with normally balanced secondary windings which are unbalanced by the presence or absence of the body 1 is characterized in that the body carries a brush 6 with stiff, resilient steel or brass bristles projecting towards the transformer, whereby the distance between the body and the transformer does not produce large variations in the output signal. The transformer 4 is preferably covered by a wood or plastic shield 5. Specifications 729,817 and 745,357 are referred to.
Patent GB-153560-A (GB)
Title: Improvements in and relating to disc mills
IPC: B02C11/08
Filed: 1920-07-09
Abstract: 153,560. Steinmetz, S. June 12, 1915, [Convention date]. Disk mills.-Mills for grinding corn, bran, &c. are provided on the periphery of one of the oppositely - rotating grinding- disks a, b with tangentially-disposed blades or beaters which extend outwardly over both disks, and with a curved sieve h at one side of the spiral grinding-chamber c, so that on one side the blades drive the grist issuing from the disks upwardly, and on the other side fling it against the sieve h. The fine material passing through the sieve escapes by an outlet k, while the coarser particles pass through an opening m in one of the walls of the grinding chamber into a channel leading to the feed-inlet of the mill. The blades g extend over both disks and may consist of bent or slit parts or screw-like surfaces to move the ground material parallel to the axis of the disks in addition to throwing it against the screen. A cone-shaped ring i fitted to the periphery of the other disk diverts the ground material towards the opposite side of the grinding chamber. Two grinding zones are provided on each disk, the inner cutting-zone b<2> consisting of a plate with sharp teeth and the outer grinding- zone b<1> of an annular plate coated with emery &c. For cooling the disks, an exhaust fan connected to an opening o draws an axial current of air through the feed-hopper d and openings a<2> in the disk a. The feed hopper d contains a feedroller e, and distributing-blades f are provided.
Patent GB-1013517-A (GB)
Title: Coated abrasives
IPC: G11B5/708
Filed: 1963-05-21
Abstract: Abrasive grain containing 15-75% by volume of diamond grit and 85-25% by volume of a diluent grain having a Moh hardness of 4.0-8.5 is bonded to a backing member by at least one coat of adhesive.  Diluent abrasives specified are flint, emery, garnet, ground glass and ground phenolic resins with or without calcium carbonate.  The backing may be cotton fabric, paper, fibre, leather, or nylon.  The backing may be waterproofed.
Patent GB-148368-A (GB)
Title: Improvements in or relating to electric generating systems
IPC: F02N11/04
Filed: 1920-07-09
Abstract: 148,368. Kohler Co., (Assignees of Bucher, W. W.). March 20, 1919, [Convention date]. Lighting and heating systems.-In a self-contained electric supply system comprising a primemover, a dynamo-electric machine, and a battery, a low-voltage battery is employed adapted to drive the dynamo-electric machine as a shuntwound motor to start the engine when the load circuit is closed. The dynamo-electric machine runs as a compound-wound generator to supply the load and to charge the battery through a resistance. The engine 1, Fig. 1, generator 2, magneto 21, feed system 22, battery charging resistance 25, switch 8 and battery 26 are mounted upon a common base. A throttle valve 10 and a choker 11, controlling the air supply to the engine, is controlled by a governor 20 through lines 12 and 13 and " hunting " is prevented by means of a dash-pot 16. The switch 8 comprises a starting magnet 47, Fig. 2, a running magnet 43 and a differential magnet 28<1> having a fine winding 63 and a coarse winding 28. The generator 2 is provided with a shunt winding 55, a series winding 53 and, if necessary, an overcompounding winding 54. When one or more lamps 50 is turned on through a switch or switches 49 the winding 63 of the magnet 28<1> and the contact 38 is raised to remove the short-circuit on the magneto 21. The contact 38 in its upper position closes the circuit of the starting magnet 47 the contact 44 of which connects the machine 2, operating as a shunt motor, to the battery 26 to start the engine. When the machine 2, operating as a dynamo, reaches its rated voltage and after the governor 20 has opened the circuit 75, 76 the running magnet 43 is energized over the series field-winding 53 of the machine 2 and the contact 39 is raised to complete the following circuit, machine terminal 56, field winding 53, lead 67, contacts 40, 39, 41, lead 69, winding 28, lead 59, closed switches 49 and their lamps 50, and machine terminal 52. A branch circuit from the contact 39, contact 42, lead 73, resistance 25 and battery 26 is also established to charge the battery 26.