baber/WOPTO huggingface dataset:
Patent GB-1438387-A (GB)
Title: Television deflection circuit
IPC: H03K4/64
Filed: 1973-07-17
Abstract: 1438387 DC-DC converters RCA CORPORATION 17 July 1973 [27 July 1972] 33975/73 Heading H2F [Also in Division H3] An electron beam deflection circuit comprises a switching stage 19 which provides an operating path for a deflection winding 22, a driver stage 12 having a first current path via a first impedance 14 connected to a first source B+, and coupled without a transformer to the control terminal of the switching stage 19 and a rectifier 30 operating on voltage variations caused by current in the deflection winding 22 which provides a second voltage which is supplied to the output of the driver stage 12 and to the control terminal of the switching stage 19. The circuit is applicable to a TV receiver which, when first switched on, energizes the driver 12 from the B+ supply until the line switching stage 19 is operating, when the driver stage 12 is supplied with relatively lower voltage but higher current obtained by rectification of the output of the flyback transformer 24. The circuit is arranged so that the average forward drive provided for the line switching transistor 19 is greater than the average reverse drive and thus limits the reverse emitter/base voltage. The discharge of capacitor 16 when transistor 19 is being turned off removes excess charge carriers from transistor 19. Transient suppressing capacitors 13 and 36 are included. A further diode 34 may be included to prevent the collector circuit of transistor 12 being loaded by the circuit 30, 31, 24c when first switched on.
Patent GB-844193-A (GB)
Title: A focussing device for use with single lens photographic cameras
IPC: G03B13/02
Filed: 1957-10-31
Abstract: 844,193. Focussing devices for reflex cameras. PIERSE, D. J. Oct. 31, 1958 [Oct. 31, 1957], No. 34039/57. Class 98(1) A focussing device for a single-lens reflex camera has a lamp bulb 13 mounted so that its filament 12 lies in the plane 5 of the focussing screen 4. The image of the filament, reflected from the mirror 9 and then through the objective lens 2, is thrown on to the subject 10 which is to be photographed. The focussing ring 8 is adjusted, or alternatively the whole camera is moved, until the image on the subject 10 is in focus. The exposure is then made in the usual way. By mounting the filament centrally of the screen 4, the subject may be centralised in the picture area. The lamp is energised through leads 17 from a battery in a casing 18. According to the Provisional Specification, the device may also be applied to a twin-lens reflex camera, or may be constructed as a separate and detachable unit.
Patent GB-523053-A (GB)
Title: Improvements in or relating to bedside fitments and like articles of furniture
IPC: A47B23/02
Filed: 1938-11-23
Abstract: 523,053. Table attachments for beds &c. RAWNSLEY, R. V. Nov. 23, 1938, No. 34075. [Class 52 (v)] Relates to shelves or tables for attachment to the head boards of beds or divans, or to bedchairs &c. so as to be capable of movement in their own planes from an out-of-the-way position for subsequent arrangement in horizontal supporting positions. According to the invention, the shelf 3, Fig. 1 (shown in a vertical position), is contained when not in use in a frame 2 and may be turned into the horizontal position for use, about pivots 4. The frame is carried by an arm 10 rockable on a pivot 11 into an out-of-theway position behind the head board of the bed as indicated by broken lines. In a modification, the frame 2 slides behind the head board instead of pivoting. In a further modification, Fig. 4, a second shelf 16 also folds into the frame. The shelves may be held in the horizontal position by pin and slot devices 9 at the hinges, or by stays 17. Instead of hinging, the shelves 18, Fig. 5, may be removably fitted into grooves 20 in the frames. A table 26, Fig. 7, may be pivotally or otherwise attached to the shelf 3 so as to extend over the bed.
Patent GB-172985-A (GB)
Title: Improved method of generating and admitting steam to the combustion chamber of internal combustion engines
IPC: F02B47/02
Filed: 1921-12-19
Abstract: 172,985. Lover, R. R. B., Lover, A. E. B., and Lover, F. R. B. Dec. 20, 1920, [Convention date]. Drawings to Specification. Water, supplying to cylinders. - In a method of generating and adding steam to the cylinders water is fed to an annular chamber arranged in the cylinder head, the water in said chamber being vaporized immediately communication is established with the cylinder. The method is carried into effect by the apparatus described in Specification 172,984, in which a double beat valve operated by the explosion pressure controls communication with the annular chamber, to which water is admitted through a groove in the tubular stem of the valve.
Patent GB-284690-A (GB)
Title: Improvements in circuit arrangements for use in wireless telegraphy and telephony and for like purposes
IPC: H03F3/28
Filed: 1927-12-16
Abstract: 284,690. Telefunken Ges. fiir Drahtlose Telegraphie. Feb. 5, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Thermionic amplifiers and generators.-A pair of valves arranged in push-pull relation, and adapted for use in a wireless transmitting system, have separate resistances arranged in the directcurrent paths of their plate and for grid circuits, thus avoiding difficulties due to unequal conditions in the valves. The common plate oscillatory circuit S for the two valves R, R<1> includes a block condenser 1 across which the supply connections to the plate current source G are made. Each connection includes an adjustable resistance 4, 4<1> an ammeter 3, 3<1> and a choke coil 2, 2'. The grid circuit s is similarly arranged with separate paths for direct grid current comprising resistances 8, 8<1> ammeter 7, 7<1> and chokes 6, 6'.
Patent GB-638595-A (GB)
Title: Improvements in or relating to filters for liquids or gases
IPC: B01D46/24
Filed: 1947-12-24
Abstract: 638,595. Filters. MULLER, J. Dec. 24,1947, Nos. 34276 and 34277. Convention dates, March 27, 1942 and Sept. 10, 1942. [Class 46] [Also in Groups XXVII and XXVIII] A filter, comprises a pile of filtering elements 14 which are separated by dished rings 2 having their edges rolled over in opposite directions and perforated at 2e for the admission and release of the liquid. The elements 14 may be formed of granular, pulverulent or fibrous material, such as slag wool, asbestos fibres, activated carbon, charcoal or coke, or of solid bodies of porous stone or a ceramic and may be enclosed in cages formed of mating flanged rings. In the case of solid bodies, however, the cage may be omitted, the outer edge then being coated to close the pores. The elements 14 may be replaced by filter cloths each enclosed between two flexible conical discs, preferably corrugated to increase flexibility. The rolled-over edges of the rings 2 may be separate members crimped to the rings which may have contact surfaces transverse to the filter axis. The pile is held together by a spring 12 which is compressed when threaded wheel 7 is screwed on to a sleeve 6 connected by a pin 8 to an abutment 10. It is releasable from the outer casing 15 by rotation of a handle 20, which in the position shown also releases the spring pressure, through a cam 19. The elements 14 may each comprise a mixture of purifying and filtering elements or separate elements for these purposes may be combined. Cleaning is effected by supplying gas or air in the reverse direction.
Patent GB-204604-A (GB)
Title: Improvements in brick moulding machines
IPC: B28B3/14
Filed: 1922-12-16
Abstract: 204,604. Cosins, 0., and Cosins, L. Dec. 16, 1922. Rolling-machines. - In brick machines of the type comprising a pair of coacting cylinders 6, 7 furnished with ribs 8 adapted to form the mould walls, the cylinder 7 is reciprocated relatively to the cylinder 6 to relieve the points of the ribs 8 from strain. As shown, the cylinder 7 is mounted in sliding bearings 26 reciprocated through rods 27 by cranks 28 on a shaft 29 which is oscillated by a crank-driven rod 33. A modification is described in which the cylinder 7 is carried by levers which are rocked by cams. The lateral closure of the moulds is effected by rings 10 disposed eccentrically about the cylinder 6 against which they are retained by cover-plates 12. Rollers 14 support the rings which are separated by rollers 40 for delivery of the bricks to a belt 39; an abutment 41 assists delivery. One cylinder may be disposed within the other. Sanding. - Funnels 37 fitted with rollers 38 sprinkle the rollers with sand.
Patent GB-1012086-A (GB)
Title: A tension device for a separator screen and a method of mounting and manufacturing under tension separator screens
IPC: B07B1/48
Filed: 1964-08-21
Abstract: 1,012,086. Sifting apparatus. SOUTHWESTERN ENGINEERING CO. Aug. 21, 1964 [Nov. 26, 1963], No. 34407/64. Heading B2H. The screen 15, Fig. 2, for a separator is tensioned between, and held by, a pair of clamping rings 1, 7 having confronting cylindrical walls 4, 8 and confronting annular end walls 2, 9 extending radially inwardly from the respective cylindrical walls, yieldable means, such as a rubber ring 18, being provided between the screen and one of the end walls in the region of emergence of the screen therefrom to minimize stress concentration of the screen in that region. As shown, the screen is mounted between the flanges of adjacent cylindrical shells 13 of a vibratory separator by means of a gasket 12 and clamping ring 14. The screen may be manufactured, as shown in Figs. 4 and 6, by tacking the screen 15 to a board 16 and applying the ring 18 and a friction ring 21 of for example woven glass tape before clamping the rings 1 and 7 together by screws 19 ; separation of the rings is facilitated by bosses 20 tapped for jack screws.
Patent GB-303999-A (GB)
Title: Improvements in or relating to wind driven power plants
IPC: F03D7/02
Filed: 1927-12-19
Abstract: 303,999. Bucklen, H. E. Dec. 19, 1927. Regulating.-A windmill is normally held in the wind by a device acting with maximum force when the rotor is fully in the wind, but with decreasing force as the rotor is automatically turned-out of the wind at high wind speeds. As shown in Fig. 2, an electric generator 4 driven by a two-bladed screw propeller 5 is secured on a platform 1 which turns on a shaft at a rear corner and has hinged thereto a tail vane 9 controlled by spring means which comprise a spring 12 connected to an arm 19 on the platform 1 and to a sliding member 15 on the tail vne frame 6, which sliding member 15 is controlled by a spring 11. The effect is that when the platform 1 has turned a certain amount out of the wind the combined restoring effect of the springs 11, 12 is reduced due to the springs aligning. An auxiliary spring device comprising a sliding bolt 26 on the platform abutting on a plate 29 on the vane frame returns the platform when the wind falls. A buffer spring 31 threaded over and secured at one end to a chain 30 by which the windmill is manually put out of the wind prevents the windmill being jerked into the wind by gusts. The tail vane is formed with a hinged panel 10 which can be clamped in any desired position on brackets 35. The control mechanism can be adjusted by varying the points of connection of the 'springs 11, 12.
Patent GB-181035-A (GB)
Title: Improvements in or relating to the drying of peat or similar material
IPC: F26B17/28
Filed: 1920-12-07
Abstract: 181,035. Rigby, T. Dec. 7, 1920. Film evaporators; multiple-effect apparatus.- Thick or semi-fluid material, such as peat, is dried in thin films on heated surfaces as in a multiple-effect apparatus, the material to be dried being supplied to the heated surfaces in parallel while the heating-fluid passes from one effect to another in the ordinary way. In the apparatus shown, the drying-surfaces consist of vertical cylinders 33, 35, &c. rotating at a rate controlled by change-speed gears in casings 1, 2, &c., and heated by steam entering the cylinders through hollow axles 27 from chambers 11 arranged on top of the casings, the condensate passing through other hollow axles 29 to chambers 13 at the bottom. The construction and arrangement of the cylinders and the means for supplying the material to be dried are similar to those described in Specification 180,963. The dried material passes through a funnel 23 and thence through a continuously-rotating disc-valve to a closed conveyer 107. This conveyer is common to several effects (in the form shown, the first five of a set of nine) and its casing is connected by a pipe 109 with the duct 21 conveying heating vapour to the next (sixth) effect. From the conveyer 107 the material passes through a second valve 113 to a similar conveyer 115, also common to several effects and connected to the vapour-supply pipe of the next and so on, the conveyer 121 discharging through a valve and being connected by a pipe 123 to the vapour discharge of the last effect. The condensate from each of the chambers 13 passes through a U-tube 85 to a trap 87, whence the vapour produced under the reduced pressure passes through a pipe 91 to the vapour-inlet of the next effect, the water passing to the next chamber 13. The uncondensed gases and vapours from the chambers 13 pass through pipes 93 to a conduit 95 common to several effects and opening into the vapour-inlet of the next effect. The supply of heating vapour to each casing is closed by a pressure-regulated damper such as that described in Specification 180,963. The vapour leaving the last effect may be used for preheating, for heating feedwater, &c.
Patent GB-1213753-A (GB)
Title: A method of and apparatus for blending and destoring bulk material stored in elongated stock piles
Inventor: WEDDIG HANS-JOACHIM
IPC: B65G69/10
Filed: 1969-07-09
Abstract: 1,213,753. Average-discharge mixing apparatus. MIAG MUEHLENBAU UND INDUSTRIE G.m.b.H. 9 July, 1969. No. 34503/69. Heading B1C. [Also in Division B8] Loose material, such as cement raw materials, is stored in an elongated stratified heap by a conveying system comprising a fixed longitudinal belt conveyer 1 feeding to a longitudinally displaceable, reversible distributing belt 2 with a reversible ejecting belt 3 displaceable at right angles to the heap. Apparatus for removing the material comprises a jib 4 with a scraper chain pivoted on an axle 7 and mounted on a scraper carriage 6. In a method of blending and destoring the material each travelling movement of the carriage 6 towards the removal end is combined with a lowering movement of the jib 4. When the jib 4 reaches its lowermost position the directions of movement are reversed and the carriage 6 returned to beyond its original position by the scraper width to a new original position 25, the jib 4 reaching its highest position before the carriage 6 passes through its old original position. The reclaimed material is fed through a hopper 16 to a take-off conveyer belt 17. The whole installation is enclosed in a shed 19 which carries the storage system 1, 2, 3.
Patent GB-454061-A (GB)
Title: Improvements in or relating to a combined indirect lighting and wireless apparatus
IPC: H04B1/08
Filed: 1935-12-12
Abstract: 454,061. Wireless receiving-apparatus. ETABLISSEMENTS VICTOR, 21, Rue de Paradis, Paris. Dec. 12, 1935, No. 34539. Convention date, Dec. 12, 1934. [Class 40 (v)] A wireless receiver 1 is combined with an indirect lighting apparatus housed in the upper part of the casing, the top 2 of which is of ground or frosted glass. The light is projected upwards and is switched on and off with the set. In a modification, the top is made as a hinged lid.
Patent GB-961722-A (GB)
Title: Improvements in or relating to electromagnetic relays
IPC: H01H50/14
Filed: 1960-10-10
Abstract: 961,722. Electromagnetic relays. H. KUHNKE. Oct. 10, 1960 [May 28, 1960], No. 34670/60. Heading H2B. An electromagnetic relay has an insulating mounting plate 1 carrying fixed contacts 18 and soldering tags 23 which are integral with respective metal strips 17 having a wide part 19 passing through and secured in " knock-out " holes 20 in the plate 1 and a narrow part 21 connected as a lead to a respective terminal in a base 24 (Fig. 4). The portions 21 may be bent in a space between the plate 1 and base 24 to correspond to the positions of the terminal plug pins of the base and a flat sheet of insulating material (Fig. 5, not shown) may be mounted in this space to separate the bent connections. The plate and base are held together by a hollow rivet 25 splayed or " joggled " at 25a. The portions 21 may alternatively be secured to screw terminals on the base 24 (Figs. 6 and 7, not shown). The relay core 4 and yoke 6 are secured by a screw 3 to an extension 2 of the plate 1 and the armature 8 is biased by a spring 10 and carries movable contact springs 13, 14. Wires (not shown) from the coil 5 and moving contact springs 13, 14 are soldered to the tags 23.
Patent GB-1442318-A (GB)
Title: Methods of shaping and toughening of glass sheets
IPC: C03B27/02
Filed: 1973-07-20
Abstract: 1442318 Bending and toughening glass TRIPLEX SAFETY GLASS CO Ltd 11 July 1974 [20 July 1973] 34705/73 Heading C1M A glass sheet is bent and toughened by heating the sheet to a bending temperature, bending the sheet by means of dies heated so that their bending surfaces are at the same temperature as the glass, further heating the glass sheet and quenching it in a chilling medium. The chilling medium is preferably a mineral such as "Cylrex" (Registered Trade Mark) to which has been added 1% by weight toluene or carbon tetrachloride. The bending apparatus is as disclosed in Specification 1,442,314, the dies being heated by gas burners. The toughening apparatus is as disclosed in Specification 1,442,319.
Patent GB-429510-A (GB)
Title: Improvements in or relating to refrigerator cabinets
IPC: F25D3/00
Filed: 1933-12-11
Abstract: 429,510. R e f r i g e r a t o r s; coldaccumulators. PETIT, J., Villa Edith, Rue Nungesser, Biarritz, France. Dec. 11, 1933, No. 34871. Convention date, Dec. 27, 1932. [Class 29] The air in a refrigerator cabinet is cooled and dried by circulating over cold-accumulators 3 disposed in a compartment 2. Each accumulator consists of a hermetically sealed metal container filled with distilled water, which is frozen prior to the introduction of the accumulator into the compartment, and provided with a central hermetically sealed metal tube 5 charged with a liquid, e.g. alcohol, having a freezing point well below that of the water. The function of the liquid in the central tube is to maintain uniform cooling of the accumulator during the melting of the ice. Moisture precipitated from the air in the compartment is removed through a syphon drain 10.
Patent GB-462451-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J61/54
Filed: 1936-12-18
Abstract: 462,451. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 18, 1936, No. 34882. Convention date, Dec. 21, 1935. [Class 39 (i)] Relates to discharge tubes comprising at least two juxtaposed limbs and consists in the provision of a strip between the limbs and pressed into close contact with one by springs acting between the limbs, the strip functioning either as an external auxiliary ignition electrode, or as the lead to an external or internal auxiliary electrode. As shown, the strip 3 is formed with resilient bends 4 and is slid between the limbs of a U-shaped gas or vapour filled discharge tube 1 having incandescent electrodes 2 at its free ends. Preferably, the strip is provided with a coating of enamel or oxide which is solid and insulating at the working temperatures of the tube. The curved portion 6 of the tube may be provided with an external electrode in the form of a clip or an internal electrode projecting into the discharge space and the strip 3 then functions as the supply lead thereto. The clip may be used for centring the tube inside an outer envelope which may be single or double-walled, and the space between the double walls or between the single wall and the tube evacuated.
Patent GB-349006-A (GB)
Title: Gun sights
IPC: F41G1/02
Filed: 1929-11-15
Abstract: 349,006. Sights for firearms. CARUTH, W. A., 138, North Larchmont Avenue, Los Angeles, U.S.A. Nov. 15, 1929, No. 34990. [Class 119.] A foresight for smallarms and machine guns comprises one or more pairs of lugs extending inwardly from lateral vertical supports on the muzzle, so as to form one or more sight openings between them. According to one construction, a sight comprises a tubular member S, Fig. 2, which is adapted to be fitted over the muzzle of a smallarm and to be secured thereto by a screw H. Upstanding graduated walls 10 on the member Shave inturned lugs D, D<1> so disposed as to form horizontal and vertical sight openings between them. The vertical edges of the upper lugs D are parallel and subtend a width of 2 ft. at 200 yards range. For battle ranges, that is from 200 to 600 yards, it is stated that the feet of a standing human target should be sighted on the imaginary line F-F, Fig. 4, in order to ensure a hit on some part of the target. The inner edges of the lower lugs D<1> taper inwardly and downwardly. The taper is such that the correct elevation at any range is automatically obtained by sighting a human target so that it fills the middle third of the space between the lugs. The edges of the lugs are also slightly inclined in order to compensate for the drift of the projectile caused by the rifling of the gun barrel. For target practice the inner walls of the lugs are parallel, the correct elevation being ascertained by the graduation on the wall 10. In a modification, a sight adaptable for both standard target and military purposes is pivotally mounted on a pin 13, Figs. 8 and 11, extending between the walls 10. The pin carries two plates formed with inturned lugs, as described above, and either arm can be brought to the vertical operative position by rotating the pin. In another modification, the lugs are formed on a separate plate which slides between the walls 10. For antiaircraft purposes three or more sets of lugs may be employed.
Patent GB-1496486-A (GB)
Title: Electric plugs
IPC: H01R13/44
Filed: 1974-12-09
Abstract: 1496486 Two-part couplings J A CRABTREE & CO Ltd 9 Dec 1974 [8 Dec 1973] 35042/77 Divided out of 1496485 Heading H2E The disclosure is similar to that of parent Specification but the claims are concerned with the provision on the insulating sleeve of resiliently deformable means to position and retain the pins in the base. Two further embodiments are disclosed, see Figs. 8 and 10. In these embodiments a sleeve 44, 84 respectively is provided which overlies a portion of the pin shank of reduced cross-section so as to lie flush with the shank free end portion. In the Fig. 8 embodiment the pin 34 terminates in a threaded stud 35 onto which a head 36 is screwed, the pin being retained in the plug base by engagement between the head and a recess 60 in which it sits, and a pair of flaps 52 which engage shoulders 59 in the base. In the Fig. 10 embodiment the pin terminals in a projection 75 which is T-shaped in cross-section and onto which a head 76 having a complementary slot 77 can be slid. Engagement between head 76 and a recess 100 in which it sits prevents relative movement of the head 76 and projection 75 and together with a pair of flaps 92, see Fig. 11 (not shown), retains the pin in the plug.
Patent GB-1156526-A (GB)
Title: Bright Zinc Plating Bath and Addition Agent
IPC: C25D3/24
Filed: 1966-08-04
Abstract: 1,156,526. Zinc plating baths. PERNIX ENTHONE. Aug. 4, 1966 [Aug. 5, 1965], No.35081/66. Heading C7B. An alkaline zinc cyanide plating bath composition e.g. comprising Zn(CN) 2 , NaCN and NaOH, contains in solution, e.g. in the amount 0À03-0À75 g/l, a polyethylenimine to brighten the Zn electrodeposited e.g. on steel or copper. Preferably the polyethylenimine has a structure made up of 5 to 300 repeating units of the formula:- -(R 1 R 3 C-R 2 R 4 C-NR 5 )- wherein R 1 -R 5  are each selected from H, C 1-4  alkyl radicals, and substitution derivatives thereof wherein one or more alkyl hydrogens are substituted by a bath-compatible group such as -OH, -COOH, esterified-COOH, -CHO, -COCH 3 , =CO, -NH 2  or ether.