baber/WOPTO huggingface dataset:
Patent GB-750539-A (GB)
Title: Improvements in and relating to objectives
IPC: G02B13/04
Filed: 1954-03-01
Abstract: 750,539. Optical objectives. VOIGTLANDER, AKT.-GES. March 1, 1954 (Feb. 27, 1953], No. 6006/54. Class 97 (1). A corrected wide-aperture objective comprises four components the first, third and fourth of which are simple, the first and second components, arranged in front of the stop space being respectively a positive meniscus convex to the front and a compound dispersing menis. cus convex towards the front, whilst the third and fourth components, following the stop are respectively a dispersing meniscus concave to the front and a collecting component having unequally curved surfaces, the arrangement being such that the quotient obtained by dividing the axial length of the stop space by the thickness of the third component is greater than 3.333, and that obtained by dividing the said stop space length by the axial distance between the inner and outer surfaces of the third and fourth components is greater than 1.333 but not greater than 6.667 whilst the product of the aforesaid quotients is greater than 6.667 but not greater than 33.33, and in addition twice the radius of the front surface divided by the product of the negative value of the radius of the rear surface of the objective and the aperture number is greater than 1.167. Numerical data are given for two examples of the objective shown. The second component may be a cemented triplet.
Patent GB-141477-A (GB)
Title: Improvements in and relating to gyroscopic apparatus
IPC: G01C21/18
Filed: 1919-03-11
Abstract: 141,477. Gardiner, W. C. March 11, 1919. Gyroscopic apparatus.-A gyroscope 4, mounted in gimbals 2, 3 and having its axis maintained in the vertical direction by gravitational or pendulous action, is provided with means, responsive to acceleration forces, for varying the amount of pendulous control. The means employed comprise a solenoid 6 adapted, when energized, to displace a mass 5 vertically, the current to the solenoid being controlled by an accelerometer &c., which may be of the kind described in Specification 20231/09, [Class 97 (ii), Surveying &c. instruments], or may consist, as shown, of a bowl 8 having a conducting-ring 9 and containing mercury 7 adapted to cover the ring 9 when the acceleration reaches a predetermined value. Levels may be mounted on the apparatus.
Patent GB-1523567-A (GB)
Title: Apparatus for supporting a drilling platform on the ocean floor
IPC: E21B33/035
Filed: 1977-02-15
Abstract: 1523567 Offshore structures SEA-LOG CORP 15 Feb 1977 [17 Feb 1976] 06154/77 Heading E1H A monopod drilling platform 10, Fig. 1, is sealed to a hollow mounting structure 24 in a water-tight manner by a resilient seal 56, Fig. 11. Turnbuckles 58 hold the platform on the base 24. Alternatively, a seal 66 may be provided, Fig. 12, compressed by hydraulic jacks 70 and a ring 68. The chamber 24 and the inside of the monopod leg are pumped dry. A method of installation is described.
Patent GB-1489556-A (GB)
Title: Flat conductor flat cable adapter
IPC: H01R12/67
Filed: 1976-02-17
Abstract: 1489556 Electric couplings THOMAS & BETTS CORP 17 Feb 1976 [19 May 1975] 06166/76 Heading H2E In a method of aligning the flat conductors 52a-52f of a flat cable 50 with the contacts 20 of a mating connector, a flat plate member 70 is employed having a plurality of apertures 72a- 72f that extend through the member 70, each aperture 72a-72f being positioned to overlie a respective conductor 52a-52f, the member 70 being adhered to the cable 50 when in position. The cable 50 with member 70 attached thereto is then positioned in the connector so that each contact 20 enters a respective aperture 72a- 72f to establish contact with a flat conductor 52a-52f. As described, the apertures 72a-72f may be situated in one or more rows depending upon the spacing of the conductors 52a-52f. A pressure sensitive adhesive layer 78 may be provided on the plate member 70 to adhere the member 70 to the cable 50, the layer 78 being initially protected by a release layer. Alternatively, the member 70 may be fixed to the cable 50 by a chemically- or heat-actuated adhesive, or by sonic welding.
Patent GB-777803-A (GB)
Title: Improvements in or relating to television receivers
Inventor: COPE JOHN EDWARD
IPC: H04N5/21
Filed: 1953-01-15
Abstract: 777,803. Automatic gain control. PYE, Ltd. Jan. 15, 1954 [Jan. 15, 1953], No. 6186/56. Divided out of 777,801. Drawings to Specification. Class 40 (5) The subject-matter of this Specification is included in that described in Specification 777,801. but the claims differ.
Patent GB-785325-A (GB)
Title: Improvements in or relating to the manufacture of chromium-free steel
IPC: C21C1/00
Filed: 1955-03-02
Abstract: A method of manufacturing chromium free steel from iron ores containing chromium comprises smelting the chromium containing iron ores with other iron ores in a blast furnace to produce a pig iron containing over 0.2 per cent Cr and below 0.8 per cent Mn, refining the pig by oxidation in the presence of heat absorbing oxides to decrease the chromium to below 0.1 per cent and converting the low chromium pig into chromium-free steel.  The oxidation may be carried out in a ladle by blowing with air, oxygen enriched air, or oxygen, the addition of a heat absorbing oxide, e.g. mill scale, or other solid, liquid, or gaseous oxides suspended in the blowing medium, and maintaining the temperature below 1350 DEG C. so that the carbon content is not reduced to an appreciable extent.  The low chromium pig iron may then be blown in a Bessemer converter to produce a chromium-free, low nitrogen steel.
Patent GB-911372-A (GB)
Title: Perforation attachments for paper bag making machines
IPC: B26F1/10
Filed: 1959-02-24
Abstract: 911,372. Perforating-apparatus. ROWE, M., [trading as MASCHINENFABRIK M. ROWE]. Feb. 24, 1959 [Feb. 24, 1958], No. 6279/59. Class 31 (2). In a perforation attachment for paper bag making machines comprising a rotatable cutter block 3 provided with a perforation cutter 6 having cutting edges co-operable with grooves 22 in a counter cutter shaft 21, the bearings 20, 20<SP>1</SP> of the shaft 21 are arranged eccentrically on a non-rotatable shaft 16 supporting bracket elements 15, 15<SP>1</SP> provided with bearing holes in which the cutter block is rotatable so that the cutter block performs the same axial movement as the shaft 16 when the latter is moved axially, after releasing a lock-nut 18<SP>1</SP>, by means of a spindle 17 provided with a hand wheel 18. The bearings 20, 20<SP>1</SP> are supported on toothed sleeves 19, 19<SP>1</SP> rotatable by means of gear-wheels 24, 24<SP>1</SP> mounted on a shaft 25 which, after releasing a capstan 27, may be rotated by means of a handle 26 to adjust the degree of perforation. A bar 8 serves as a counterweight.
Patent GB-515412-A (GB)
Title: Processes of preparing derivatives of aromatic amino-sulfamids
IPC: C07C311/37
Filed: 1938-02-28
Abstract: 515,412. Sulphonamide compounds. RICHTER GEDEON VEGYESZETI GYAR R.T. Feb. 28, 1938, Nos. 6329 and 6330. Void. Convention dates, April 29, 1937, and Jan. 31, 1938. [Class 2(iii)] Aminobenzene-sulphonamides are acylated with aliphatic or aromatic dicarboxylic acids to give products of the formula in which R represents an aliphatic or aromatic residue and X stands for hydrogen, alkyl or aryl, which two latter groups may be split off by saponification. The acid products, which may be converted into salts, possess therapeutic properties. According to the examples (1) p-aminobenzene-sulphonamide is melted with adipic acid to give p-adipinylaminobenzene sulphonamide ; (2) p-aminobenzene-sulphonamide is heated with succinic acid in aqueous solution and produces p-succinylaminobenzenesulphonamide; the product may be converted into its salts with quinine and with phenolazoalpha:alpha - diaminopyridine ; (3) p-aminobenzene - sulphonamide is dissolved in aqueous sodium carbonate and treated with malonic acid monochloride, Whereby p - malonylaminobenzene - sulphonamide is formed ; (4) p-aminobenzenesulphonamide is heated in aqueous solution with phthalic anhydride 'to give p-phthalylaminobenzene-sulphonamide ; (5) p-aminobenzenesulphonamide is boiled with diethyl oxalate and the resulting mono-ester saponified with caustic soda solution to yield p-oxalylaminobenzene-sulphonamide.
Patent GB-346111-A (GB)
Title: Improvements in or relating to devices for testing brakes on automobiles or the like
IPC: G01L5/28
Filed: 1930-02-26
Abstract: 346,111. Dynamometers. POWELL, A. D. The Limes, New Street, and BRADBURY & SONS, J., New Street Works, Braintree, Essex. Feb. 26, 1930, No. 6351. [Class 106 (ii).] For vehicle brakes.-To test the brakes of a motor vehicle, it is run over spring-controlled movable platforms and the displacement of these when the vehicle is braked is indicated electrically. Fig. 1 shows one form in which a bar F is moved, by connection with the overlying platform, against the action of springs E, E1. Lugs A2 on the platform also serve to advance a bar H retracted by a spring H1. One end of the bar H acts as a brush bridging a conductor K and a number of contacts I wired to lamps J, and a pawl L engaging a rack M retains the bar in its most advanced position. When the car runs off the platform it may complete a circuit at Q through an electromagnet N so as to withdraw the pawl and allow the bar H to return. When this has occurred a projection O breaks the circuit of the magnet N at P. By placing a switch R in midposition as shown the circuit through Q may be broken so that the indication is preserved until the switch is thrown to the left whereupon the pawl is released and the bar H returns. In a second construction, Fig. 3, the bar F is controlled by light springs El and, after lost motion, by powerful springs E. When the platform advances, the circuit of magnet N is broken at S but prepared at P so that when the car leaves the platform the bar F can return fully to home position under the pull of the light springs and complete circuit at S to release the pawl and bar H. The restoration of the latter again breaks the circuit at P. The indication may be allowed to persist, by opening the switch T as shown. In a further modification the contacts I are disposed circularly and the form of the parts K, M, &c. correspondingly modified.
Patent GB-1374102-A (GB)
Title: Aircraft control systems
IPC: G06G7/70
Filed: 1971-11-30
Abstract: 1374102 Automatic control of aircraft SPERRY RAND CORP 30 Nov 1971 [10 Dec 1970] 06514/74 Divided out of 1374101 Heading G3R A system for controlling the air speed of an aircraft to approach and maintain a desired air speed consistent with a safe stall margin for each of a plurality of positions of wing surfaces com-  prises means for producing an actual air speed signal Vc, manually operable means 145 for setting a reference air speed, limiting means 149 to limit the reference speed to a safe value as determined by a computer 136 ... 139 in response to the aircraft's lift characteristic, and means 36, 38 for controlling the air speed. The reference speed is further limited at 150 to a lesser extent for increasing than for decreasing speeds. The actual speed is determined by a dynamic pressure device. The means 36, 38 comprise the engine throttles and these may be controlled independently of the above by a signal 165 from a "thrust rating computer" Fig.2 (not shown) which is said to represent the difference between the speed of the fastest engine and an "optimum value". This signal may also limit that from the first system if that calls for too high acceleration. The limiting computer derives V MIN  from a transducer signal #F for wing surfaces position and a signal W, from a further computer Fig.11 (not shown), representing the aircraft weight. This is derived from computations of the actual coefficient of lift, the lift over weight ratio, and the actual airspeed, according to a given formula. The difference 153 between desired and actual air speeds is combined with a rate term VTC and filtered at 154 for display on a "fast/ slow" meter which the pilot may follow. It is also applied to the throttle servo via an "integral" path 156, 157 and a "displacement" path via a gust filter 158. Signals #e and #iH for elevator and stabilizer deflections respectively provide anticipatory adjustment of the throttles when these surfaces are moved. The Specification also describes an arrangement for controlling the pitch angle; also eliminating dynamic errors in the computer for aircraft weight, and for calculating the angle of attack, and these form the subjects of the parent and other Divisional Specifications.
Patent GB-563607-A (GB)
Title: Improvements in and relating to potato planting machines
IPC: A01C9/08
Filed: 1943-04-23
Abstract: 563,607. Potato - planting machines. GREENWOOD, L. P. April 23, 1943, No. 6547. [Class 6 (i)] A potato-planting machine comprises a wheeled main frame supporting a hopper having an inclined base in which is fitted one or more distributers controlling discharge to delivery shoots 18. The front part 8 of the hopper is hinged to the main portion 7 and resiliently supported on rods 12 by springs 13. Each distributer consists of concentric rings, the outer 22 fixed to the hopper base and the inner carried by'radial plates 19 projecting from a hub 20, the spindle of which is driven from the land wheels at varying speeds depending on the change-wheels used. The potatoes are assisted through the discharge openings 17 by pendulous plates 25 supported on a radial spindle 26. One end of the spindle engages loosely the stub end 27 of the central spindle and the other enters one of a series of openings in the fixed member 28. Soil-replacing shares 50 are adjustably carried on an auxiliary frame 45; They may be lifted from operative position jointly or independently. The frame 45 is resiliently supported at the rear from the main frame 1. Manure distributers may also be provided. Seats 61 are associated with each distributer. According to the Provisional Specification radial arms on a wheel driven from the main axle pass through slots in the shoots and feed the potatoes one by one. A joggling action may be imparted to the hopper which may also have, inclined guides or baffles.
Patent GB-1398200-A (GB)
Title: Smokable products based on filler-containing cellulose films
IPC: A24B15/16
Filed: 1973-02-09
Abstract: 1398200 Tobacco substitutes HAARMANN & REIMER GmbH 9 Feb 1973 [10 Feb 1972] 6557/73 Heading A2C [Also in Division C3] A smokable product is based on a carbonized cellulose film containing a total of from 5 to 50% by weight of one or more inorganic fillers. The carbonization is performed at a temperature of 150 to 300C to give a product having a degree of degradation of from 5 to 30% by weight and a carbon to water ratio within the range of from 1 to 0.8 to 1:1 inclusive. The product may also contain from I to 20% of a soluble neutral salt such as sodium or potassium chloride or phosphate, magnesium aluminium citrate, manganese aluminum citrate or tartrate, magnesium- or manganese-iron citrate or tartrate. Cigarettes made from these compositions are stated to have a mild or neutral flavour with diminished sharpness and to yield very little condensate. The material is readily worked when moist.
Patent GB-1092686-A (GB)
Title: Improvements in or relating to hydraulic brakes
IPC: F16D55/228
Filed: 1966-02-15
Abstract: 1,092,686. Vehicle brakes. H. TEVES, E. A. TEVES and M. TAUSEND [trading as ALFRED TEVES MASCHINENUND ARMATURENFABRIK KOMM. GES.] Feb. 15, 1966 [March 15, 1965], No. 6577/66. Heading F2E. An hydraulic brake in which two pistons 2 reciprocate to opposite hands in a pair of hydraulic cylinders 1 to apply linings 21<SP>1</SP> to a brake surface has operating the pistons a mechanical device comprising an actuating shaft 3 extending through the cylinder with its axis transverse to the direction of movement of the pistons and connected thereto by transmission members, see Fig. 1, which convert rotatory movement of the shaft 3 to axial braking movement of the piston 2 and are connected to the piston through an adjusting drive 7, 8 which determines the relative position of the piston and the transmission axially in the cylinder and on every occasion the brake is applied move the piston away from its transmission member by a step of predetermined length as the piston is advanced towards the brake surface. The actuating shaft has a cutaway position at 24-26 forming a flat surface of what the upper or lower edge can operate as a cam on the abutting back surface of the transmission member which is perpendicular to the axis of the piston. The barrel 7 of the adjusting drive is rotationally attached to the transmission member and is screw threaded onto a stem 2a on the piston 2. The adjusting member 8 is pivoted at 19 on the transmission member and has a lever arm 15 which engages with the end 18 of a pin protruding inwards from the cylinder wall so as to cause the member 8 to rock about its pivot whenever the transmission member is moved to apply the brake. When the member 8 is rocked an arm 14 on its end overrides one or more teeth protruding from a wheel on the end of the barrel 7 and when the brake is released again it engages the tooth whereon it rests and with the aid of a spring arm at 16 rotates the barrel and transmission member about the screw thread on the stem 2a to increase the distance between the flat surface on the transmission member and the piston head. Recesses 41, 42 are provided for manual adjustment of the piston head when the brake is released.
Patent GB-582001-A (GB)
Title: Improved method of and apparatus for laundering clothes and the like
IPC: D06F43/06
Filed: 1944-04-05
Abstract: Articles such as garments and bedding are laundered in an apparatus in which they are fed by a conveyer belt 3 (which may be made of stainless steel wire) into a bath 5 containing a volatile organic solvent capable of dissolving grease, e.g. trichlorethylene (preferred), tetrachlorethane, carbon tetrachloride, cyclohexanone or light hydrocarbon distillates, through which they are conveyed between the conveyer belt (passing between rollers 6 and 10) <PICT:0582001/IV/1> and a series of guide belts 8 (passing round the rollers 6), said guide belts being narrower than the conveyer belt and offset with respect to each other so that every part of the articles is subjected to treatment with the solvent, then freed from the solvent (e.g. by passing between heated rollers) whilst being conveyed on a conveyer belt through a chamber or vessel (which may be part of the bath), and then washed in a further bath containing an aqueous washing liquid, e.g. a solution of detergents such as soap, soda, sodium silicate or the sodium salts of sulphated higher aliphatic alcohols, through which the articles are conveyed between a conveyer belt (which may be of canvas) and a series of guide belts arranged in a similar manner to those in the first bath.  If desired, the treatment with the organic solvent may be preceded by a treatment with a strong soap solution.  After the washing process the articles are generally subjected to bleaching (e.g. with an aqueous solution of sodium hypochlorite), rinsing, blueing, further rinsing, starching (if desired), and drying (e.g. by squeezing or heating, or by freezing and removing the ice by mechanical means followed by a short treatment with hot air or other gases), which treatments may be effected in baths or chambers through which the articles are passed continuously (e.g. on a cotton or rubber conveyer belt) after leaving the washing bath and in which sprayers, agitators, rotary scrubbers, beaters or possers may be operated.  After drying, the articles may be conveyed to an ironing machine.  Specifications 10951/08, [Class 15], and 421,044 are referred to.
Patent GB-1067984-A (GB)
Title: Discharge hatch for fodder silos
IPC: A01F25/16
Filed: 1966-02-15
Abstract: 1,067,984. Pressure-resisting doors. METALLWORK A.-G. BUCHS. Feb. 15, 1966 [Feb. 15, 1965], No. 6627/66. Heading F2P. The outwardly projecting edge 1 of the hatchway of a silo is covered by a wing 3 hinged on a joint 2 and corresponding to the curvature of the silo wall and supported by a member 4 which contacts the edge 1 through a packing 5. A yoke 6 pivotable on a bolt 7 connected to the parts 3, 4 is pressed against the silo wall by a hand wheel 8; the yoke is pivoted on the bolt to allow opening of the wing 2 and is secured in the locking position shown by a lug 9 on the silo and passing through an aperture in the yoke.
Patent GB-1428763-A (GB)
Title: Potentiometer method of and apparatus for cooling metal bars heated to a  high temperature
IPC: H01C1/12
Filed: 1973-02-12
Abstract: 1428763 Potentiometers AB ELECTRONIC COMPONENTS Ltd 4 Feb 1974 [12 Feb 1973] 6724/73 Heading HIS The contact spring 4 of a rotary potentiometer has wipers 6, 7 which respectively engage the non-coplanar contact surfaces of a resistance element 2 and a collector 3, and to enable correct contact pressure to be obtained the wiper arms 13, 14 rest upon relatively inclined surfaces 10, 11 of a rotatable contact carrier 5. The spring 4, which in its unloaded condition is flat, is mounted in a slot 9 of the carrier 5 and fixed thereto by eyelets 12. Carrier 5 is held in position against the action of spring 4 by cover plate 15.
Patent GB-193691-A (GB)
Title: Improvements in or relating to sound boxes for gramophones and similar instruments
IPC: G11B3/46
Filed: 1922-03-08
Abstract: 193,691. Weber, J. H: March 8, 1922. Tool-arm mountings.-In a sound-box for gramophones or the like, knife-edge or point bearings for the stylus-bar are formed on a bar removably mounted in a slot in the casing or on the stylus-bar itself, the latter being resiliently held to the casing by spring strips. A bar 4 disposed in a slot in the casing 1 has knife-edges 4<a> which engage in a slight depression in the transverse member 6 of the stylus-bar 5. This is held in position by flat springs 7 which are secured at diagonally-disposed ends by screws 8 to lugs on the casing, so that the free ends of the spring strips bear upon the plate 6. Pads 10 of rubber &c. are interposed between the parts 6, 7. The bearing-bar 4, which is retained in its slot by the pressure of the springs, may thus be readily renewed when worn. It may be made by stamping, or formed from substances such as quartz or glass.
Patent GB-540605-A (GB)
Title: Slide fasteners
IPC: B21D53/50
Filed: 1940-04-16
Abstract: 540,605. Sliding clasp fasteners. ULRICH, F. April 16, 1940, No. 6856. [Class 44] [Also in Group XXII] The fastener elements shown in Fig. 4 are cut from a strip as shown in Figs 1 and 2 pressed from a wire 26, the space between the jaws 12 before they are closed on the tape being wide enough to take the projection 10. In another form, the elements are cut from a strip, the edges of which are serrated to conform to the outer ends of the jaws. The elements may be severed from the strip 42 by a punch 52 co-operating with a fixed die 54 and a spring pad 56. Strips with serrated edges may be formed from sheet material by a punch or die having the outline of the strip. The heads of the elements may be formed on the strip by a punch 78 co-operating with a fixed die 80 and spring pads 76. Specification 539,525 is referred to.