baber/WOPTO huggingface dataset:
Patent GB-491723-A (GB)
Title: Improvements in or relating to fastening devices for motor car bonnets and the like
IPC: E05C19/14
Filed: 1937-03-05
Abstract: 491,723. Motor-bonnet fastenings. BINKS, C. L., and AMAL, Ltd. March 5, 1937, No. 6648. Addition to 406,199. [Class 44] In a, motor-car bonnet fastening of the kind described in the parent Specification, the sliding hook member is guided in its release movement so that it is swung clear of the cooperating member, allowing the bonnet to be opened by vertical movement. As shown, the hook member 6 slidably mounted on a plate 11 secured to the side panel 2 and adapted to engage a staple 4 on the cover 1 has studs 7, 8 respectively guided in slots 9, 10 in plate 11, each slot having a longitudinally disposed portion and an off-set portion. The slot form is such that member 6, which is operated by handle 20, crank 15, and spring link 21, first slides vertically to disengage the hook from member 4, and then swings clear of member 4. The spring passes over the dead-centre in moving from one position to the other, and in the fastening position a projection 18 on the crank bears against a stop 19 struck up from plate 11. In the movement by which the hook member is actually engaged with and disengaged from the staple 4, the spring 21 acts as a rigid link. A stiff coil spring of hair-pin form be used in place of the helical form shown.
Patent GB-601214-A (GB)
Title: Improved method of and apparatus for automatically controlling the thickness of metal strips, especially metal foils, in rolling mills
IPC: B21B3/00
Filed: 1944-04-11
Abstract: 601,214. Automatic control systems for rolling-mills. NEHER, Ltd., R. V. April 11, 1944, No. 6690. Convention date, March 4, 1943. [Class 38 (iv)] In the rolling of foil, particularly of aluminium or its alloys, the thickness of the product leaving the mills is continuously measured by means which automatically control the setting of parts of the mill to maintain the thickness control within prescribed limits. The control device consists of a measuring device 2 that creates eddy currents in the foil 1 ; the strength of the magnetic field due to the currents being used for the thickness measurement by apparatus 3 comprising a high-frequency amplifier and a galvanometer. When the permitted thickness variation is exceeded and current is switched on which by means of an amplifying relay 4 operates a reversing relay 5 causing rotation of an auxiliary motor 6 in one direction or the other. This may actuate a control 7 for regulating the speed of an A.C. motor driving the rolling-mill or it may control a brake for varying the back tension of the foil entering the mill. The tension of the foil on the leaving side of the mill may be controlled.
Patent GB-879057-A (GB)
Title: Improvements in or relating to the production of perfluoro-alkanes and perfluoro-cycloalkanes
IPC: C25B3/28
Filed: 1960-02-25
Abstract: 879,057. Perfluoro-hydrocarbons. SALINE LUDWIGSHALLE A.G. Feb. 25, 1960 (March 7, 1959], No. 6720/60. Class 41. Perfluoro hydrocarbons are formed by electrolysis of a solution in anhydrous HF containing a fluorinated alkane or cycloalkane, preferably the di- or tri-fluoro derivative, and which contains at least one H and one F atoms. A conductivity assistant e.g. NaF is preferably present. As starting materials fluor-alkanes or. cyclo-alkanes containing up to 20 C atoms may be used. In examples, 2.2-difluoro-hexane, - butane, or -octane is dissolved in anhydrous HF containing a little NaF, and electrolysed at 4 to 9 volts using sheet iron cathodes and nickel anodes. The cell is cooled with brine to maintain a temperature of 10 to 20 C., and a cooled condenser mounted to trap the vapours evolved. These were fractionated, and the HF returned to the cell. Products of respective starting materials are: (a) mainly C6F14; (b) C4F10; (c) C8F18. A diaphragm may be mounted in the cell to prevent hydrogen migrating to the anode. German Specification 1,065,397 is referred to.
Patent GB-339894-A (GB)
Title: Improvements in or relating to collapsable frame-work structures
IPC: A47B3/12
Filed: 1930-03-01
Abstract: 339,894. Hokanson, A. E., and Wells, E. G. March 1, 1930. Folding bedsteads.-A collapsa,ble framework for cots and other devices, of the kind comprising a collapsable X-frame as described in Specification 324,668, has longitudinally disposed members 14 hinged to each end of the X-frame barmembers 11, 12 so that they may be collapsed thereon. The hinges for the longitudinal members may be of the kind described in Specification 324,314. The X-frame members 11 and 12 may be combined with another X-frame 22, 23 to form a cot frame or camp bath, the lower longitudinals 15, 16 being hinged to both frames while the upper longitudinals 14, 17 are screwpin joined to the ends of the second frame. The cot proper is a shaped piece of fabric provided with pockets 29 for the reception of the longitudinal side bars and with removable spaced lath stiffeners 35. A cot cover may be supported on removable supports 32 clamped to the sides of the cot frame.
Patent GB-702510-A (GB)
Title: Improvements in temperature responsive instruments
IPC: G01K7/02
Filed: 1952-03-17
Abstract: 702,510. Electric indicating systems. FOXBORO CO. March 17, 1952 [March 24, 1951], No. 6878/52. Class 40 (1). Apparatus responsive to variable temperature comprising a first thermocouple unit providing a potential varying with temperature, a potential comparison circuit including a standard cell fixed potential providing a reference potential for comparison with the temperative variable potential, and a second thermocouple unit located in a temperature ambiency to which the first thermocouple is wholly or partly responsive which operates to vary .the reference potential in compensation for nonlinearity between the potential of the first thermocouple unit and the temperature to which it is responsive; part at least of the potential of the second thermocouple unit being applied to the standard cell in a totalling action with respect to the potential of the standard cell. In a temperature measuring apparatus the resultant voltage of two differential thermocouples 12, 13 measuring the temperatures in chambers 10, 11 is applied through a filter 15 to a nullbalance detector-amplifier circuit 16, 18, 19 (which may be of the kind described in Specifications 655,359 and 656,074) for comparison with a standard cell 17, to produce amplified unbalance voltages. The latter energise solenoids 20, 21 whose differentially arranged plungers 23, 24 are mechanically coupled to adjust a variable capacitor 22 rebalancing the measuring circuit 16, and deflect the pen 27 of a chart 28 through a linkage 29 to record the differential temperature between the chambers. The scale of the instrument is linearized relatively to the differential temperature by injecting in series with the standard cell a variable correcting voltage derived from a voltage divider 31 across a third thermocouple 30 in the chamber 11. In a modification the temperature indications derived from a single thermocouple may be linearised by injecting a portion of the voltage from a further thermocouple in the same enclosure into the standard cell circuit.
Patent GB-195606-A (GB)
Title: Improvements in or relating to machines for brushing, decorticating and cleaning cereals
IPC: B02B3/10
Filed: 1923-03-09
Abstract: 195,606. Simonis, L. Michel-. April 1, 1922, [Convention date]. Decorticating; scouring.- The brushes 8 of a machine for decorticating or cleaning cereals are arranged in a helical form with the bristles disposed in the direction of travel of the material. The brushes are mounted on a frame 6 of channel iron with longitudinal bars 5 between endplates 4, and consist of animal or vegetable bristles or metallic wires or strip mounted in wood. A longitudinal opening in the casing 2 is connected by a passage 14 to the suction fan 12. The grain outlet comprises a lateral channel 16 fitted with plates 13 of parabolic form, also connected to the fan 12.
Patent GB-178274-A (GB)
Title: Improvements in or connected with the valves of compressed gas containers
IPC: F16K35/02
Filed: 1921-03-02
Abstract: 178,274. Davis, R. H. March 2, 1921. Locking catches. -A valve for a compressed gas container is locked in its adjusted position by a spring urged bolt d which is adapted to engage any one of a series of holes in the operating hand - wheel b. A finger-piece h is provided for manipulating the bolt and for retaining it in the operative position by engagement in a notch in - the side of the guide e.
Patent GB-216178-A (GB)
Title: Improvements in steam engines
IPC: F01B17/04
Filed: 1922-12-11
Abstract: 216,178. Watson, H. B., and Billetop, T. C. Dec. 11, 1922. Slide valves, cylindrical and piston; fluid-actuated gears.-In a uniflow engine, the compression is regulated to suit working conditions by providing on either side of the main exhaust ports series of auxiliary ports controlled by adjustable valves. In Fig. 1, the rows of ports P, P<1>, Q, Q<1> are provided with screw-down, handoperated valves J. In a modification, rotary sleeve rings with bevelled recesses and adjusted by hand-operated tooth-gearing surround the cylinder lining and control the auxiliary ports therein. In the construction shown in Fig. 4, a fluid-operated, spring-controlled piston valve S with differential areas alternately subject to cylinder pressure and exhaust controls the auxiliary exhaust pouts P<4>, P<5>. The valve movement is limited by screws r<2>.
Patent GB-549690-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B13/00
Filed: 1941-05-30
Abstract: 549,690. Lenses. TAYLOR, TAYLOR & HOBSON, Ltd., and WARMISHAM, A. May 30, 1941, No. 6952. Drawings to Specification. [Class 97 (i)] In a photographic or like objective comprising four asymmetrically arranged air-spaced simple elements, the first and fourth being convergent and the other divergent, the radius of the front surface of the third element is at least five times that of the rear surface thereof, the middle air space is less than each of the others and is less than one third of their sum, and none of the air spaces exceeds 0.09 times the equivalent focal length of the objective. The numerical sum of the radii of the front surface of the first element and of the rear surface of the fourth element may be greater than 0.70 of the equivalent focal length, and the numerical sum of radii of the front surface of the second element and of the rear surface of the third element may be greater than 0.08 of the equivalent focal length.
Patent GB-658814-A (GB)
Title: Improvements in and relating to a cosmetic device
IPC: B05B11/06
Filed: 1949-03-14
Abstract: 658,814. Cosmetic containers. RODMAN TRADING CORPORATION. March 14, 1949, No. 6954. [Class 18] [Also in Group XXIX] Cosmetic containers are incorporated in a combined holder comprising an upper container held in a sleeve into which a second sleeve carrying a second container telescopes, a third container fitting within the second sleeve and closing it. The upper container 23 may carry liquid cosmetic and the closing cap 25 may incorporate a brush applicator 26. The second container may be a scent spray 32 (see Group XXIX) and the third may carry a retractable lipstick 53.
Patent GB-759787-A (GB)
Title: Improvements in pressure sensitive devices
IPC: B64D47/00
Filed: 1954-03-10
Abstract: 759,787. Gas turbine plant; jet propulsion 'engines. HOBSON, Ltd., H. M., and GRENLAND, L. S. Dec. 3, 1954 [March 10, 1954], No. 6973/54. Class 110(3) [Also in Group XXIX] A Mach number control unit for reducing the value of a signal pressure applied to an air-fuel ratio controller of a combustion turbine or ram jet engine upon the attainment by an airborne vehicle propelled by the turbine or engine of a predetermined Mach number, as in Specification 729,077, comprises a pressure responsive diaphragm 10 subject on its right-hand face to static pressure and rigidly connected to a lever 11 pivoted at 12 and to an evacuated, pressure responsive element 9. The signal pressure applied to the air-fuel ratio controller is ram pressure which is transmitted through a passage 6 having a restriction 4 on the downstream side of which is a static pressure vent 3, 8 normally closed by a valve 7 which is actuated by the lever 11. A passage containing an adjustable restriction 19 leads from the passage 6 to the chamber containing the element 9 and this chamber has a restricted outlet 2 so that the pressure that acts in the valveopening direction on the difference of areas of the diaphragm 10 and element 9 is an adjustable fraction of ram pressure. Specification 740,510 [Group XXXIII], also is referred to.
Patent GB-770712-A (GB)
Title: Rotary machine having a rotor provided with adjustable vanes
IPC: F04D29/36
Filed: 1955-03-09
Abstract: 770,712. Axial-flow pumps etc.; elastic-fluid and hydraulic turbines. KONINKLIJKE MASCHINEFABRIEK GEB. STORK & CO., N.V. March 9, 1955 [April 1, 1954], No. 6986/55. Classes 110 (1) and 110 (3). In a turbine or pump for use with gaseous or liquid medium, rotor blades 2 are adjusted by means of a rotatable auxiliary shaft 4 arranged coaxially in the hollow main shaft 9 of the rotor, the auxiliary shaft being operated by a motor 22 through reduction gearing which is housed in a casing 17 carried by the free end of the shaft 9, the latter being coupled by gearing 11, 12 to the driving motor 15 in the case of a pump or to the driven machine in the case of a turbine. Each blade 2 is provided with a worm-wheel driven by a worm, the worms being arranged with their axes parallel and driven in unison through intermediate gear-wheels by a pinion 3 on the end of the auxiliary shaft 4. The motor 22, which can be run in either direction to effect the adjustment, is connected to the reduction gearing by a coupling 21 which may be a centrifugal coupling or an electromagnetic coupling which is switched on or off simultaneously with the motor. The casing 17 is connected to the shaft 9 by a casing 16 having slots for guiding projections 27 carried by a nut 25 which engages a threaded part 24 of the shaft 4. The projections 27 are connected by a rack and pinion to an indicator 23.
Patent GB-557629-A (GB)
Title: Improvements in and relating to hose and the like and circular knitting machines therefor
IPC: D04B1/26
Filed: 1942-05-25
Abstract: 557,629. Knitting. BOOTON, Ltd., W. E., BOOTON, W. E., and WITTS, H. May 25, 1942, No. 7081. [Class 74 (ii)] A blank for a stocking or like article knitted upon a circular machine has the leg fashioned by introducing needles to produce an upwardly converging gap in the tubular fabric made by rotary knitting, and heel parts h united at their ends to the fabric at the back of the leg and to the foot bottom and formed by knitting on two spaced groups HN of needles while temporarily holding the intervening instep needles IN inoperative. The blank is knitted starting at the top. The heel flaps h may be knitted by rotary knitting, or to avoid long floats, they may be knitted by reciprocatory knitting. To form a good selvedge during reciprocatory knitting, the inner end needle of each line group may be temporarily elevated so that the thread wraps about it. The blank may be knitted upon a two-feeder machine having a group of leg-fashioning needles FN and a group of instep needles IN disposed over substantially diametrically opposed parts of the needle circle, and two groups of heel needles HN disposed between the groups of leg-fashioning and instep needles. Specifications 469,507, 537,965 and 538,839 are referred to.
Patent GB-488482-A (GB)
Title: An improved flushing valve for urinals, water closets and the like
IPC: E03D3/04
Filed: 1937-06-26
Abstract: 488,482. Flushing valves. DREYER, F. L., and BROMLEY, C. June 26, 1937, No. 7096/38. Divided out of 480,689. [Class 135] A flushing valve for closets and the like comprises a cylindrical casing 32 adapted for direct connection to a supply main 8a and divided into upper and lower chambers 3a and 4a by a partition, the communication between the upper chamber and the supply main being controlled by a valve 9a actuated by a piston 5a in the lower chamber 4a. The upper chamber 3a is also provided with radial ports 30 leading to an annular discharge space 31 formed between the casing 32 and a concentric casing 34 connected at its lower end to the flush pipe 33. Pressure fluid from the main 8a is supplied to the piston 5a to open the valve 9a through a passage 38 controlled by a manuallyoperable valve 37. On release of the valve 37, . the main valve 9a closes slowly by the leakage of the pressure fluid from below the piston through a relief orifice 44 which regulates the duration of the flush. The piston 5a is adapted to close the orifice 44 just before the valve 9a seats so that a cushioning action is obtained. An air escape passage 13a for the space above the piston is provided.
Patent GB-1182461-A (GB)
Title: Laminated Wall Pressure Vessel
Inventor: UTO YOSHIMITSU
IPC: F17C1/04
Filed: 1967-02-14
Abstract: 1,182,461. Hydrogen-resistant pressure vessel. MITSUBISHI JUKOGYO K.K. 14 Feb., 1967, No. 7118/67. Heading B1X. [Also in Division B3] In a pressure vessel for use in or for containing hydrogen and consisting of an inner cylinder 21, an outer cylinder 29 and an interposed laminate 2, the cylinder 21 or 29 exposed to hydrogen, the adjacent layer of the laminate and the weld(s) of this layer are formed of a steel resistant to hydrogen embrittlement i.e. comprising not less than 0.1% chromium and/or molybdenum. In a hydrogen containing vessel the inner cylinder 21 is formed with welds of such steel and the welds 33 of the adjacent layer 22 penetrate the inner cylinder of pressure equalising bore 35 extends through the outer cylinder 29 and the laminate 2. In this way the layers 23 . . . 28 and the outer cylinder are protected from hydrogen and may be made of carbon steel.
Patent GB-230863-A (GB)
Title: Improvements in shaving-brushes
IPC: A46B11/02
Filed: 1925-03-16
Abstract: 230,863. Larsson, C. R. March 15, 1924, [Convention date]. Shaving - appliances.-A shaving- brush is provided with a hollow handle 1, preferably of oval cross-section, within Which is arranged a soap-holding reservoir 6 positioned to one side of the handle to leave room for shaving-apparatus 12 with a detachable handle 13. Covers for the handle 1 and for the bristles are provided. In the construction shown in Fig. 4, the reservoir 6 which is detachably secured to the handle 1 is provided with a. nozzle 14 to project into a recess in the plate 3 and is formed with a groove 16 adapted to be engaged by a U-shaped spring clip 15, attached to the handle.
Patent GB-627562-A (GB)
Title: Improvements in or relating to the stabilisation of soil
IPC: C09K17/14
Filed: 1946-03-08
Abstract: The attack by soil micro-organisms on small quantities of water-insoluble organic compounds having a free polar group incorporated in soil to stabilise it is reduced by incorporating in the stabilised soil an antiseptic inimical to such organisms. The water-insoluble organic compounds may be resins, e.g. gum rosin, aliphatic fatty acids, powdered husks of ground nuts, or an organic compound (believed to be pectic acid) isolated from the liquor obtained in the soda process of making pulp from esparto grass.  The antiseptic may be mercuric chloride or sodium pentachlorphenate.
Patent GB-1017792-A (GB)
Title: Programme selection circuits controlled by a coin mechanism for self-service launderettes
IPC: D06F34/30
Filed: 1964-02-21
Abstract: 1,017,792. Coin-freed apparatus. MASCHINENFABRIK A. D. SCHULTHESS & CO. A.G. Feb. 21, 1964 [Nov. 25, 1963], No. 7282/64. Heading G4V. [Also in Divisions H1 and H2] In the washing machine programme control circuit described in Specification 1,017,791 the connections between the coin sensing photocells and the accumulated coin indicating relays, and the connections between the contacts of these relays and the relays which indicate the programme appropriate to the accumulated coins, are made by way of a printed circuit board which plugs into a contact strip on which all the terminals are represented. The contact strip comprises a U- section member containing the terminals in the form of conductive clips. On the printed circuit board horizontally printed bars on one side provide conductors for the relay windings and cross connections between contacts while the other side of the board has vertically printed bars providing conductors for the relay contacts. By drilling through the circuit board at the intersections of horizontal and vertical conductors solder plugs are inserted to make the circuit connections. The horizontal conductors for the relay windings are cranked through a right angle to connect with terminal portions along a horizontal edge of the board, terminal portions also being provided along the same edge for the vertical conductors. The position of the terminal portions along the edge of the printed circuit board match the contact clips on the contact strip so that the board is plugged into the strip edgewise to be incorporated in the circuit. If it is necessary to change the price structure of the washing machine it is merely necessary to replace one printed circuit board by another.
Patent GB-827348-A (GB)
Title: Improvements in x-ray tubes
IPC: H01J35/16
Filed: 1958-03-06
Abstract: 827,348. X-ray tubes. MACHLETT LABORATORIES Inc. March 6, 1958, No. 7286/58. Class 39(1). The anode of an X-ray tube is wholly within the envelope, and the target portion is enclosed by a hood extending in the direction of the cathode ; cooling liquid is circulated through channels in the main anode body portion adjacent the target surface, the said channels also extending into the hood. As shown in Fig. 2, the target 23 is embedded in a recessed portion 22 of the copper block forming the general anode structure, the hood part acting as a shield against secondary emission and unwanted radiation. The anode is supported by a sleeve 21 from a reentrant part of the glass envelope. The cooling liquid (oil or water) is introduced through a central pipe 28 into a conical chamber 33, from which it passes through a series of jets 34 to impinge on the walls of the passageways 35 just behind the target. -In a further provision for cooling the hood part itself, the liquid passes through a series of openings 40 into a channel 37 running down one side of the shield, through an annular passage connecting with a similar channel on the other side of the shield. The liquid outflow is deflected by a mounting ring 41 through parts 42 in a sleeve member 31, and flows out through a pipe 44 which is concentric with the inlet pipe 28. Resilient ring seals may be provided between the sleeve members 43 and 31.
Patent GB-1146338-A (GB)
Title: Concentrating nitric acid
IPC: C01B21/44
Filed: 1968-02-14
Abstract: 1,146,338. Concentrating nitric acid; lithium nitrate. ALLIED CHEMICAL CORP. 14 Feb., 1968 [15 Feb., 1967], No. 7333/68. Heading C1A. Concentration of nitric acid by dissolving molten lithium nitrate in at least 35% (by weight) nitric acid, and distilling to give concentrated nitric acid (at least 68% by weight), and a residue containing nitric acid and lithium nitrate in solution. This residue may be flash evaporated on a pool of molten lithium nitrate, giving lithium nitrate and dilute nitric acid. The acid may be concentrated by conventional distillation, and recycled. The lithium nitrate may also be recycled. Preferably, the nitric acid to be concentrated contains at least 50% nitric acid, and, if necessary, concentration by conventional distillation may be effected before the addition of lithium nitrate.