baber/WOPTO huggingface dataset:
Patent GB-1128852-A (GB)
Title: Electric circuit arrangement for influencing the picture character of a television picture
Inventor: HAENDLE JORG
IPC: H04N5/32
Filed: 1966-02-11
Abstract: 1,128,852. Television. SIEMENS-REINIGER-WERKE A.G. 11 Feb., 1966, No. 6254/66. Heading H4F. To bring the large-area picture contrast of a television picture to a uniform brightness level in order that fine picture details present within the large-area contrast ranges may be intensified with the aid of a contrast regulator at the picture reproducing apparatus, a circuit arrangement is disposed in the transmission path between the television camera and the picture reproducing apparatus. The intensified screen image of an object 3 exposed to an X-ray source 1 appearing on the output fluorescent screen of an image intensifier 2 is picked up by television camera 5 and the corresponding video signal is applied via amplifiers 6 and 8 to circuit arrangements 9 and 7 as shown. Circuit 9 includes a charge-storage tube 10 the cathode of which is earthed through cathode resistor 11 and the signal plate of which is connected through operating resistor 13 to a positive potential. The amplitude of the scanning electron beam of tube 10 is thus modulated by the video signal to form a potential image which is erased by light source 12 which continuously irradiates the signal plate with such an intensity that at each scanning the potential image formed by the preceding scanning just remains present, the electron beam being defocused in the plane of the signal plate so that the potential image formed only contains the larger area picture details which are to be suppressed. The undisplayed high-frequency portion of the video signal which corresponds to the fine picture details occurs directly as an alternating voltage across the operating resistor 13. In order that the potential image displayed on the signal plate does not appear at the operating resistor the picture content must be constant or only slowly varying. The alternating video voltage which contains only fine contrasts is applied to a mixing amplifier 14 for subtractive mixing with the video signal from amplifier 6 and the resulting voltage which contains only large-area picture details is applied to a second mixing amplifier 15 for subtractive mixing again with the video signal from amplifier 6. The resulting alternating voltage contains only the fine picture details are applied to the picture reproducing apparatus 17 through amplifier 16. The degree of suppression of the large-area picture details is influenced by variable amplifier 18 and the contrast of the fine picture details may be intensified by means of a contrast regulator at the picture reproducing apparatus 17.
Patent GB-282576-A (GB)
Title: Apparatus for exhibiting pattern and other sheets in succession
IPC: A47F7/16
Filed: 1927-03-07
Abstract: 282,576. Romahn, F., and Nolte, P. March 7, 1927. Hinged elements, rotary apparatus with.- An appliance for exhibiting pattern and other sheets in succession in which the sheets are carried by bars spaced around the periphery of a rotatable roller has the sheets arranged in sets of two or more in each bar, the sheets being pushed over into the display position by friction rollers. The roller a has a collar b at each end, the collars carrying eyelets c supporting split bars e between the halves of which the sets of sheets f are clamped. Depending arms g<2> at the sides of the frame are suspended from a transverse shaft O<@> slidably mounted in slots p<2> and carrying an upper set of rollers k and a lower set i mounted on shafts driven by pulley and rope gearing q and a motor l. The rollers i frictionally press against the rearmost sheet and raise it in readiness for turning into the display position, which is effected by the upper rollers k. A weighted arm n presses the rollers against the sheets.
Patent GB-351931-A (GB)
Title: Variable speed transmission gear for motor vehicles and locomotives
IPC: F16H3/08
Filed: 1930-02-26
Abstract: 351,931. Change-speed gearing for locomotives and motor vehicles. DYRENKOV, N. 1., 108, Ul Krasnoge, Odessa, Russia. Feb. 26, 1930, No. 6415. [Class 79 (ii).] Comprises a variable speed and reverse gear adapted to be mounted on or removed from the axle of a motor-driven locomotive without removing the axle from under the locomotive or the wheels from the axle, in which the gears are constantly in mesh to prevent breakage of teeth when changing gears and the weight of the gear box is evenly balanced on the axle and does not hang heavily on any other parts of the mech. anism or on the driving shaft. A worm wheel 1, Figs. 2 and 6, made in two halves split on a diagonal line, is bolted and keyed to the axle 5 as shown, and engages with a worm shaft 17, 18 carried by partitions 20, 20<1> in the gear box 14. An intermediate shaft 33, 33<1>, Fig. 1, runs parallel to the worm shaft and in line with a driving shaft 55 connected by a universal coupling, not shown, to the engine shaft. The weight of the parts rests mainly on the worm wheel but the gear box is held in position by a fork 76 secured to one end and bolted by bolt holes 78 to the frame or clutch housing of the locomotive. Sliding jaw clutches 64, 42 are mounted on splined portions of the shaft 33, 33<1> for changing speed and for reverse drive respectively. When the clutch 64 is moved to the left, direct drive from the shaft 55 to the shaft 33<1>, 33 is effected. When it is moved to the right, drive at reduced speed is effected through the gears 54, 72, 62, 61. When the clutch 42 is moved to the left, forward drive is transmitted from the shaft 33<1>, 33 to the worm shaft 18 through the intermediary of gears 37, 21. When it is moved to the right, reverse drive is transmitted through the gears 38, 49, 22. As the gears are constantly in mesh, they may be of noiseless spiral or herring-bone form. Access to the three compartments of the gear box, which may be filled with oil, is effected through openings 74 closed by covers 75.
Patent GB-139894-A (GB)
Title: Improvements in or relating to valve operating gear for internal combustion engines
IPC: F01L1/26
Filed: 1919-03-14
Abstract: 139,894. Stevenson, A. C., and Smith, W. S. March 14, 1919. Valve-gear.-In an internal-combustion engine in which two or more poppet valves are mounted in an inclined position in the cylinder head and are operated by rocking- levers moving in planes containing the axes of the valves, the rocking-levers are actuated by rockers operated by tension rods, Four valves 6 are set obliquely in a spherically-headed cylinder 5 and are operated by levers 15 - - 18 rocking in bearings on a plate integral with, or attached to, the cylinder head. The rocking-levers 15, 16 and 17, 18 are operated respectively by two rocking-levers 10, and a central lever 14 mounted on a pin 11 in a bracket 12 on the cylinder head and actuated by tension rods 7, 8. At the inner end, the levers 10, 14 are provided with palms engaging beneath the ends of the valve levers 15 - - 18.
Patent GB-476007-A (GB)
Title: Machine for measuring the lengths particularly of running webs
IPC: D06H1/02
Filed: 1937-03-04
Abstract: 476,007. Measuring fabrics &c. MENSCHNER, J. March 4, 1937, No. 6485. [Class 42 (ii)] In a machine for measuring fabrics &c. the registering apparatus 7 and the printing apparatus m are driven through a friction coupling 2a under the control of the measuring wheel 3. As shown, the cloth feed roller 13 is coupled through the friction coupling 2a with a hollow shaft 1 which carries a casing 8 and a gear-wheel 6 gearing with a wheel 6a of the registering &c. apparatus. Two connected idle wheels 5a, 9a within the casing gear respectively with a fixed wheel 5 and with a wheel 9 on a shaft 11 carrying also a brake drum 8a. The band brake 8b has one end fixed to the casing 8 at 8e and the other end to a lever 12 pivoted at 8h to the casing S. The other end of the lever 12 engages a crank-pin 8c geared to the measuring roller 3. The friction coupling tends to overdrive the registering &c. apparatus 7, m, but is prevented by the roller 3, crank 8c, and brake.
Patent GB-1458291-A (GB)
Title: Azo dyestuffs from aminopyridine coupling components
IPC: C07D213/82
Filed: 1974-02-13
Abstract: 1458291 Amino pyridone derivatives BAYER AG 13 Feb 1974 [14 Feb 1973 24 Oct 1973] 6535/74 Heading C2C [Also in Division C4] 1-Methyl (or ethyl)-3-cyano-4-methylamino (or ethylamino)-6-amino-pyridone-2 is prepared from the corresponding 2-chloro-pyridinium chlorides and sodium carbonate. 1 - Methyl - 3 - carbamoyl - 4 - methylamino- 6 - amino - pyridone - 2 is prepared by hydrolysing the corresponding 3-cyano compound in sulphuric acid.
Patent GB-1512491-A (GB)
Title: Process for obtaining pure proteolytically active enzymes from latex of carica papaya
IPC: C12N9/50
Filed: 1976-02-19
Abstract: 1512491 Compositions containing an enzyme from Carica papaya LEK TOVARNA FARMACEVTSKIH IN KEMICNIH IZDELKOV 19 Feb 1976 [20 Feb 1975] 6594/76 Heading A5B [Also in Division C3] A pharmaceutical composition comprises a proteolytically active enzyme obtained by subjecting raw latex of Carica papaya to chromatography on a chromatographic material which is polymerised dextran substituted by sulphopropyl groups using Tris- HCl or phosphate buffer, e.g. papain, chymopapain, lysozyme or proteinase D, and a pharmaceutically acceptable carrier, e.g. sodium chloride.
Patent GB-986774-A (GB)
Title: Door fastening means
Inventor: FRANKS NORMAN
IPC: E05B65/00
Filed: 1963-02-20
Abstract: 986,774. Door latches. WALTER CASSEY Ltd. Feb. 5, 1964 [Feb. 20, 1963], No. 6789/63. Heading E2A. A door fastening means includes a housing 4 for mounting on one side of a door 6, a latch member 12 pivotally mounted in the housing and having a keeper engaging portion 15, an operating member 8 which engages and moves the latch member from a latched to an unlatched position, a spring loaded toggle mechanism 17, 18 mounted in the housing for retaining the latch member in both its latched and unlatched positions and an actuating mechanism 21 for mounting on the opposite side of the door, said actuating mechanism being connected to the toggle mechanism so that the former can be used to unlatch the latch member 12 when the operating member is secured in a position corresponding to the latched position. The operating member 8 is a lever pivoted to the housing on a pin 9, the longer limb having apertured lugs which can be aligned with an apertured lug 11 on the housing to enable the member 8 to be locked in the latched position by means of a padlock. The latch member 12 is pivoted about an axis 13 and has a nose portion 14 which is engageable and movable by the shorter limb of the member 8 to unlatch the latch member. The toggle mechanism includes a lug 17 projecting from the latch member 12 and connected to a hollow link 18 by a pin and slot connection, the link being pivotally connected at its other end to the housing 4. The interior actuating mechanism has a body 21 mounted by flanges 22 to the door and includes an actuating member 23 pivoted relative to the body and urged away from it by a spring 24 and an actuating rod which engages the actuating member and the hollow link. The fastening means is used in conjunction with a keeper 26 mounted on the door frame. Even when the operating member 8 is held in a locked position the latch member can be released by the actuating member 23 which, through the rod 25, moves the link 18 into the unlatched position (Fig. 2 not shown) causing the toggle mechanism to be over-centred. The fastening is closed by the nose portion 14 abutting the keeper 26 causing the latch member to pivot and over-centre the toggle mechanism into the latched position.
Patent GB-701672-A (GB)
Title: Improvements in or relating to glass blowing machines
IPC: C03B9/12
Filed: 1952-03-17
Abstract: 701,672. Glass blowing. BRITISH THOMSON-HOUSTON CO., Ltd. March 17, 1952 [March 17, 1951], No. 6840/52. Class 56 An automatic glassblowing machine comprises an endless conveyer 4 carrying a number of blow-heads 7 and another endless conveyer 5 carrying a corresponding number of moulds 8, 9. The conveyers 4, 5, are positioned on opposite sides of a third endless conveyer 3 comprising a number of plates 2 articulated together and each provided with two holes 6. A ribbon of plastic glass 1 is deposited on the conveyer 3 and those portions thereof above the holes sag into the holes and are engaged above and below by the blow-heads and moulds respectively. Closing of the mould halves, rotation of the moulds and the subsequent opening thereof are automatically controlled ; likewise the lowering and raising of the blow-heads.
Patent GB-1055314-A (GB)
Title: Improvements in or relating to bistable devices
Inventor: TRUSLOVE DAVID JAMES
IPC: F15C3/00
Filed: 1963-02-20
Abstract: 1,055,314. Mercury switches. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 5, 1964 [Feb. 20, 1963], No. 6847/63. Heading H2B. [Also in Division G4] An indicator or storage device (see Division G4) comprises two liquid reservoirs interconnected through a constricted passage, one of the reservoirs containing a globule of mercury or the like which can be transferred between the reservoirs A and B by gas pressure. In one embodiment, Fig. 6b (not shown), the devices are arranged in a matrix, and the presence of a globule in one reservoir connects a pair of conductors such as A1 and S1 in a manner similar to that of a crossbar switch.
Patent GB-558888-A (GB)
Title: Ha ogen of unsaturated organic compounds
IPC: C07C17/08
Filed: 1942-05-20
Abstract: 558,888. Alumina ; catalytic agents. SHELL DEVELOPMENT CO. May 20, 1942, No. 6852. Convention date, May 29, 1941. [Classes 1 (i) and 1 (iii)] [Also in Group IV] Unsaturated hydrocarbons having an unsaturated linkage between carbon atoms of aliphatic character or unsaturated partly halogenated derivatives thereof are treated in the gaseous phase at elevated temperature with a solid halogenating agent comprising an adsorptive alumina predominating in gamma alumina and alpha alumina hydrate and a substantial amount of a chloride or bromide of scandium, titanium, vanadium, chromium, manganese, iron, cobalt, copper, molybdenum, tungsten or uranium wherein the metal has a valency greater than the minimum. In examples, butylene is chlorinated in a glass tube heated by means of an aluminium block and packed with pellets having a high content of gamma alumina and an alumina hydrate impregnated with cupric chloride and in some case sodium chloride. In the first of four stages, a mixture of air, steam and hydrogen chloride is passed through the tube, secondly a mixture of steam and air to complete the oxidation, thirdly, butylene and steam are passed over thus activated halogenating agent and fourthly the chlorinated products are removed by passing steam through the tube. The alumina used as carrier for the halogenating agents may be that obtained from the aluminium trihydrate deposited in the Fiches-Sherwin modification of the Bayer process for the production of aluminium. Suitable carriers may also be prepared by slow precipitation of aluminium trihydrate by passage of carbon dioxide through aqueous sodim aluminate and drying and heating the resulting alumina, by acid washing of hydrargillite and careful heating or by treating aluminium amalgam under water and calcining the resulting precipitate. Unsaturated compounds used as starting materials which are mentioned include: ethylene, the pentenes, 2-methylbutene-3, hexene-1, 4-methylpentene-2, octene-1, cyclopentene, cyclohexene 2-methylcyclo hexene, butadiene-1:3, pentadiene-1:3, hexadiene-1:3, acetylene, propyne, hexyne, vinyl halides, allylhalides, 2-halopropylene, crotylhalides, isocrotylhalides, 4-halobutene-1, methallylhalides, monohalogenacetylenes, propargylhalides, 1: 1-dihaloethylene, 3-halopentene-1, 3-halocyclo pentene, 3-halopentadiene-1:4. Unsaturated bromine, iodine and fluorene compounds are also mentioned.
Patent GB-726232-A (GB)
Title: Improved arrangement for the joining of frame members of windows and the like
IPC: E06B3/98
Filed: 1953-03-12
Abstract: 726,232. Windows. PERSSON, E. S. March 12, 1953 [March 19, 1952], No. 6866/53. Class 20 (3). In metal window frames wherein a U-shaped sash 7 surrounds the glass 1 on three sides and is retained by a bar 8, the end pieces 11 of the bar slide in longitudinal grooves 12 in the legs of the U, and each is locked therein by a circular disc 16 engaging arcuate recesses 17 in the edges of the groove 12 and screw 15, passing through arcuate slots 19 which when the disc is angularly adjusted, exert a cam-like action against the recesses 17 to press the bar 8 on to the edge of,the glass.
Patent GB-847834-A (GB)
Title: Improvements in or connected with ventilating apparatus
Inventor: HICKMOTT BRIAN WILLIAM RUSSELL
IPC: F24F13/065
Filed: 1957-03-01
Abstract: 847,834. Ventilators. NORVENT Ltd. June 27, 1957. [March 1, 1957], No. 6910/57. Class 137. Ventilating apparatus includes a housing to be secured in an air duct opening in which there is a drum 8, having a slot 10 extending therethrough, in which fixed or adjustable air guiding vanes are secured suitably spaced, the drum 8 being rotatable about its axis on pivots 9 from a central position in two opposite directions, so as to close the slot 10, and a hit-andmiss type air volume damper adjustable to admit air through each slot 16 escaping from the housing via the slot 10 when the drum 8 is suitably positioned. The housing has a flat portion, a bearing portion 3 extending longitudinally of it with closed ends and a slot 4, a rear plate 5 having a portion carrying a bearing portion 6 lined with soft material 21 also closed at the ends wtih a slot 7. The drum 8 has a strip 12 with a knob or like attachment whereby it is turned to give an upward or downward deflection of 45 degrees, the portion 3 having a slot into which the drum 8 can be further turned for closure. The damper comprises a slidable plate 17 on a fitting 14 with slots 16, and having as many slots 18 with means, such as a bolt and nut 19 working in a slot, to fix the plate 17.
Patent GB-1166733-A (GB)
Title: Aircraft Engine Intake Ducts
Inventor: GOLDSMITH EUSTACE LAURENCE
IPC: F02C7/042
Filed: 1967-02-14
Abstract: 1,166,733. Boundary layer control. MINISTER OF TECHNOLOGY. 14 Feb., 1968 [14 Feb., 1967], No. 6916/67. Heading F2R. [Also in Division F1] An aircraft engine air intake duct has means movable transversely of the airflow into the duct between a retracted position at subsonic airspeeds and an extended position at supersonic airspeeds, the movable means in the extended position causing the boundary layer flow over an associated upstream aerodynamic surface to leave the surface, and bleed means downstream of the movable means to bleed off at least some of the deflected boundary layer from the main flow through the intake duct. In one embodiment, Fig. 3, the engine intake duct 23 is of generally half-moon end section and is defined between a part of the aircraft fuselage 21 and an enclosure 22. A wall 24 is mounted in the fuselage and is movable transversely of the airflow through the duct 23 between a retracted position at subsonic airspeeds and an extended position, shown, at supersonic airspeeds. The movement is effected by a member 25 controlled manually by the pilot or automatically in accordance with airspeed. In the extended position the wall 24 reduces the flow area of the duct 23 and at the same time causes the boundary layer flow to separate from the fuselage upstream of the wall 24, the separated layer being drawn off through a bleed aperture 26. The separation causes the formation of shock waves C and D. Aerodynamic efficiency can be improved by jets of air 27 supplied by a pump 28 to increase the boundary layer velocity and by drawing off an additional portion of the boundary layer through an aperture 29 by means of a suction pump 30. Further air jets at 31 and/or 32 may assist the bleed flow through aperture 26 by ejector action and additional assistance may be provided by a pivoted flap 33 adjacent aperture 26 movable into the position shown dotted during supersonic operation. In a modification, Figs. 4 to 6 (not shown), the intake duct (41) is cylindrical having a conical central spike (42) and the movable wall is formed by an annular assembly of interfitting segments (43), the deflected boundary layer passing through a bleed aperture (45) to the interior of a hollow centre body (46). In a further modification, Fig. 7 (not shown), the intake duct (71) is rectangular having a wedge-like centre body (72). In a further arrangement, Fig. 8 (not shown), the movable wall (84), is mounted on a rectangular or circular intake (81) rather than on the centre body (83).
Patent GB-394292-A (GB)
Title: A method for the determination of oxygen or combustible gas constituents by combustion
IPC: G01N7/08
Filed: 1933-03-08
Abstract: In the determination of combustible gas constituents or of oxygen by combustion, the reacting gases are conveyed separately to the combustion chamber to obviate the danger of explosion. Fig. 1 illustrates the application of the invention to an automatic volumetric apparatus operated by the rise and fall of a liquid.  The reacting gases are drawn into the measuring chambers 1, 2 and expelled from these through the tubes 8, 9 respectively to the combustion chamber 10.  Fig. 2 illustrates a continuously operating device working on the electric resistance principle. The gases are <PICT:0394292/III/1> <PICT:0394292/III/2> led in through separate tubes 8, 9 to the combustion chamber 10 containing an electric resistance 16 which is compared with the standard resistance 17.
Patent GB-692980-A (GB)
Title: Improvements relating to seat sticks
IPC: A45B5/00
Filed: 1952-03-19
Abstract: 692,980. Seat sticks. ADENEY, G. L. March 19, 1952, No. 7134/52. Class 52(ii) In seat sticks of the kind wherein the stem is hollow to accommodate an umbrella &c. and wherein the base of the seat member, closing the hollow stem, is in pivoted connection with a sleeve screwed upon the stick stem the base is provided with a pair of lugs 9, 10 pivoted by coaxial pivots 12, 13 to the sleeve 7 screwed upon the stem 1 which stem is provided with a plain spigot end 5 so that as the seat member is unscrewed from the stem 1 the spigot 5 withdraws from the seat base to allow the seat base to be pivoted about the pivots 12, 13 and so expose the hollow stem to permit the entry or withdrawal of the umbrella &c.