baber/WOPTO huggingface dataset:
Patent GB-989800-A (GB)
Title: Process for electrolytically producing insulating oxide films on the surface of tantalum or niobium bodies
IPC: C25D11/26
Filed: 1963-05-22
Abstract: An oxide film is formed on tantalum or niobium by anodization in a bath consisting of phosphoric acid in a glycol-water mixture, containing 25-90% by weight of glycol.  The concentration of phosphoric acid is selected from the range 1.8-600 millimoles per kg. of glycol-water mixture to give an oxide coating at a forming voltage of 200 volts having low residual current and high sparking voltage. The oxide coated metal is used as an electrode in an electrolytic capacitor.  Reference is made to a known process of anodizing tantalum or niobium in 10% phosphoric acid.
Patent GB-431294-A (GB)
Title: Improvements in plate clamping mechanism for use in printing machines
IPC: B41F27/10
Filed: 1934-07-11
Abstract: 431,294. Printing-surfaces. HOE & CO., Ltd., R., 109, Borough Road, London.- (Hoe & Co., Inc., R. ; 138th Street, New York, U.S.A.) July 11, 1934, No. 20383. [Class 100 (ii)] A plate clip for use on printing-cylinders comprises a body portion 161 insertable directly into the upper portion of a groove 13 on the cylinder, and a number of detachable shoe sections 18 slidably retained in the lower portion of the groove by side projections 22, 23 engaging recesses 14, 15 in the walls of the groove, the shoe sections being inserted into and withdrawn from the groove through an opening in the cylinder at the end of the groove. The shoe sections are preferably of a metal softer than that of the co-operating surfaces of the groove.
Patent GB-583357-A (GB)
Title: Improvements in or relating to induction discs for watthour meters and the like
IPC: G01R11/02
Filed: 1944-10-21
Abstract: 583,357. Supply meters. FERRANTI, Ltd., PRINCE, J., and WHITEHEAD, M. Oct. 21, 1944, No. 20431. [Class 37] An induction disc for use in energy and like meters, comprises an inner disc section and an outer annulus section, wherein the annulus is adapted to constitute the main conductor of the eddy currents produced, whilst the inner disc is of such a mass and electrical conductivity that the disc is of higher conductance/mass ratio than a comparable disc of constant thickness, and whose thickness and material are the same as the outer annulus. In Fig. 3 the inner section c is of a metal such as aluminium or magnesium, having lower conductivity and density than that forming the outer annulus d such as copper. The disc sections may be made of the same material the inner section being made thinner, so reducing the mass, this reduction in mass more than offsetting the resulting loss in conductance. A further outer annulus r, Fig. 9, having the same properties as the inner disc, may be included to increase the torque/mass ratio. For polyphase meters the outer annulus p can be split in two sections by an annulus ring q of insulating material, thus leaving two distinct and separate areas for the production of eddy currents. Discs made of two metals may be produced by rolling, spinning, electrodeposition &c. Specification 370,067 is referred to.
Patent GB-218140-A (GB)
Title: Improvements in and relating to hasp fastenings
IPC: E05C19/08
Filed: 1923-08-13
Abstract: 218,140. Knapp, W. F. Aug. 13, 1923. Hasp fastenings.-A padlock 17 is attached to a loop 16 on the staple plate 10 of a hasp fastening by a chain 18. Another loop 15 is provided on which the padlock is hung when not in use. The loop may be formed by bending back and riveting a strip of metal extending from the staple plate. A hook for suspending is provided on the staple plate, the hook being used instead of a padlock when it is desired to hold the door closed without locking it.
Patent GB-1453215-A (GB)
Title: Calcination of pulverous material
IPC: F27B7/20
Filed: 1974-05-10
Abstract: 1453215 Cement burning plant F L SMIDTH & CO AS 16 April 1975 [10 May 1974] 20839/74 Heading F4B Plant for subjecting to heat treatment a pulverulent raw material containing lime, e.g. cement raw materials comprises a rotary kiln 1 the upper end of which is connected to a raw material preheater and a separator and the lower end of which is connected to a cooler for treated materials, wherein first means, e.g. pipes 18, 18<SP>1</SP> is provided for feeding raw materials from the preheater to the upper end of the kiln so that material is entrained in the kiln exit gases and is at least partially calcined thereby on the way to the separator, and second means, e.g. pipe 21 is provided for feeding raw material from the separator to the upper end of the kiln so as to travel therethrough. The preheater is a suspension preheater of the cyclone type served by a riser pipe 5, the lowermost cyclone acting as the separator and the riser pipe is a preliminary calcinator. Fluidizing air and fuel may be fed at 20 and 22 into the portions 19, 19<SP>1</SP> of the pipes 18, 18<SP>1</SP>.
Patent GB-710563-A (GB)
Title: Cylinder heads for air-cooled internal combustion engines
IPC: F02B3/06
Filed: 1951-09-04
Abstract: 710,563. Inlet and exhaust conduits; valve chests. KLOCKNER-HUMBOLDT-DEUTZ AKT.-GES. Sept. 4, 1951 [Oct. 16, 1950], No. 20870/50. Class 7(2) In a cylinder head for air-cooled engines which is bolted to the crankcase (not shown), and which has inlet and exhaust passages 4, Figs. 2 and 5, Fig. 3, respectively, communicating with the interior of the cylinder, some of the securing bolts 6, 7 and the inlet and exhaust passages are arranged in such a manner that the axis of one of the bolts 7 or an extension thereof intersects the inlet passage 4 while the axis of another bolt 6 or an extension thereof intersects the exhaust passage 5. The cylinder head of a diesel engine with an offset, auxiliary combustion chamber and overhead valves, is secured by four bolts which pass through the cylinder walls into the crankcase; two of the bolts 6, 7, seat in recesses 11 in the inlet and exhaust passages 4. 5, caps 22 being provided which cover the bolt ends. If the cylinder head consists of light alloy the recess seatings 11 are made from steel rings 12 cast in position. The inlet passage 4 opens to the exterior at a point over the bolt 7 so that access to the latter is effected through the passage; the exhaust passage opens to the exerior laterally of the bolt 6 whereby an orifice 14 is formed in the head vertically over the bolt, the openings being normally closed by a plug 13. The valves are arranged in " V " formation with the apex directed towards the cylinder; the combustion chamber may be located between the remaining two bolts. If the bolts pass through the inlet and exhaust passages then each end is surrounded by a streamlined casing which is cast in the passage. The invention is applicable to two- and four-stroke engines and to engines in which the cylinder head is suspended, together with the cylinder, on a plate arranged above the cylinder and bolted to the crank casing. The valves 2 and 3 are actuated by a rocking lever housed in a casing cast in one with the cylinder head and having a closing member 17, Fig. 3. The remaining securing bolts are accessible through openings in the base of casing, which openings are normally closed in an oil-tight manner by threaded plugs.
Patent GB-294155-A (GB)
IPC: B01F33/40
Filed: 1928-07-18
Abstract: 294,155. Schering-Kahlbaum Akt.-Ges. July 18, 1927, [Convention date]. Mixers with circulating-devices.-A stirring or mixing device employed in the hydrogenation of liquids comprises a container in which is a hollow spiral and a nozzle for injecting gas or vapour so as to induce a flow of liquids through the spiral the liquids being carried to a height above the normal level of the liquid. In the form shown, the gas is injected from a nozzle c into the bottom f of a vertical spiral having a cylindrical mantle g so that the liquid is forced up the spiral and over its top edge h. The gas is circulated' through the pipe b by a pump a. The spiral may be tubular and may be inclined or horizontal; it may also be arranged round the walls of the container i. The liquid may fall through another spiral. Perforations may be provided to permit the gas and liquid to have different speeds of passage. The spiral may also rotate.
Patent GB-665038-A (GB)
Title: Improvements relating to automatic fire escape apparatus
Inventor: CLEMENTS HENRY GEORGE
IPC: A62B1/10
Filed: 1949-08-13
Abstract: 665,038. Rope grips. KERR & CO. (MANCHESTER), Ltd., J. Aug. 10, 1950. [Aug. 13, 1949] No. 21092/49. Classes 78 (ii) and 78 (v). [Also in Group XXXIV] In automatic escape apparatus the brake mechanism comprises a centrifugal brake having peripherally spaced brake elements co-operating with a non-rotating lining in a brake drum or housing, the brake being driven by the cable through an epicyclic gearing. A base plate 1 has a snap hook and a plate 4 rivetted to the plate 1 and having a central post 5 on which a cable pulley 6 rotates. The pulley has a flange 7 secured to a pair of planet wheels 9 meshing with a stationary annulus 10 secured by legs 12 to lugs 13a on a brake housing 13. The planet wheels mesh with a sun wheel 11 mounted to rotate on a bush 14 on the shaft 5 and integral with a hub. The hub has spokes 16 having a rim 17 with four cavities for weights 20. As the pulley 6 is rotated at speed the weights 20 are thrown outwardly to engage a brake lining 21 secured to the brake housing 13 so controlling the speed of descent. The mechanism is enclosed by a cover 22 attached to the plate 4.
Patent GB-678083-A (GB)
Title: Improvements in the filling of ball-point fountain pens
IPC: B43K7/04
Filed: 1948-08-10
Abstract: 678,083. Syringes &c. CHATFIELD, J. C., and LEFFERDINK, C. S. Aug. 10, 1948 [April 30, 1948], No. 21113/48. Class 102 (ii) [Also in Group XV] A device for filling the reservoir 9 of a ball-point fountain pen comprises a cylinder 15 closed at the ends by screw caps 16, 18, a piston 36 with rubber ring 38, and a screw 34 fitting in a gland nut 31 for depressing the piston to expel ink 14 from the cylinder through a long slender tube 28 secured to or forming part of the cap 18. The cylinder, piston, and tube may be of brass, copper, steel, or plastic material, and the cylinder, caps, and tube may be a single casting.
Patent GB-575447-A (GB)
Title: Improvements in or relating to high frequency electrical testing apparatus
IPC: H03G3/22
Filed: 1943-12-17
Abstract: 575,447. Valve generating circuits. WATTON, W. L. Dec. 17, 1943, No. 21162. [Class 40 (v)] High-frequency oscillations, passing from a generator through a frequency-sensitive coupling and an attenuator to an apparatus to be tested at a wide range of frequencies, are maintained at constant amplitude throughout the range by rectifying part of the output and utilizing the rectified voltage to correct any variation of amplitude. The valve 1 maintains oscillations in a tunable circuit 2 which are fed to a coil 3 connected through an attenuator 4 to the apparatus to be tested. The coil 3 also feeds a rectifier 5, the load resistance 6 of which is connected through a low-pass filter 21, 22 to the grid of an amplifier 10. This is direct-coupled to a pair of valves 11, 12 having a common cathode resistance 26 as in Specification 482,740, the anode of the second valve 12 being connected to the anode of the oscillator valve 1 so as to vary the anode voltage in such sense as to correct variations of amplitude of the oscillations reaching attenuator 4. The critical amplitude is adjustable by varying the cathode bias resistor 23 of the valve 10 or the grid bias supplied to valve 12 by the voltagedivider .27. A meter 7 may be connected in series with the resistance 6 to indicate output voltage. A cathode follower stage may be interposed between the valve 12 and the lead 14 to the oscillator anode (Fig. 2, not shown)..
Patent GB-149264-A (GB)
Title: Improved tin-opener
IPC: B67B7/46
Filed: 1920-07-13
Abstract: 149,264. Haastert & B³ll, R. July 14, 1919, [Convention date]. Hand-shears.-A tin-opener in the form of a pair of shears comprises a slightly curved support c for application to the underside of the rim of the tin and a slightly curved cutter d with a small sideways space between them. There is a cavity e between. the parts c, d which, with the curve of these parts, enables the lid to be cut close to the inside of the tin.
Patent GB-1034050-A (GB)
Title: A process for the manufacture of pyridine derivatives
IPC: C07D491/04
Filed: 1965-05-19
Abstract: Compounds of formula <FORM:1034050/C2/1> (wherein R1 is an alkyl group and R2 and R3 each represent a hydroxyl group or together are an epoxy group or a methylenedioxy or substituted-methylenedioxy group of formula <FORM:1034050/C2/2> where R4 and R5 are hydrogen atoms or alkyl, alkenyl, phenylalkyl or phenyl groups or together are an alkylene group) are obtained by additively reacting an oxazole of formula <FORM:1034050/C2/3> (where R1 is as above and R6 is an alkyl group) with a compound of formula <FORM:1034050/C2/4> (where R20 and R30 together are an epoxide group or a methylenedioxy or substitutedmethylenedioxy group as above) to form a Diels-Alder type adduct of formula <FORM:1034050/C2/5> isolating the adduct and breaking the oxide bridge at the 2,5-position (with concomittant removal of the alkoxy group at the 5-position and aromatization) in a weakly acid medium at a temperature lower than that at which the addition reaction is effected and where a 4,5-di-(hydroxy-methyl) product is required, hydrolysing the product and, where an acid addition salt is required, reacting the resulting compound with an acid.  In examples adducts are obtained by reacting 4-methyl-5-ethoxy-oxazole with 2 - isopropyl - 4,7 - dihydro - 1,3 - dioxepin, with 4,7-dihydro-1,3-dioxepin and with 2,5-dihydro-furan, the adducts are reacted with solutions of pyridoxin hydrochloride to break the oxide bridges and then hydrolysed with hydrochloric acid to obtain pyridoxin hydrochloride.
Patent GB-604126-A (GB)
Title: Improvements in vibrators
IPC: B06B3/00
Filed: 1944-11-01
Abstract: 604,126. Vibratory mechanism. STOKES, R. O., and KOPP, G. Nov. 1, 1944, No. 21395. [Class 80 (iv)] [Also in Group I] A vibrator for a reciprocating member, e.g. a vibrating screen, such as is described in Specification 604,125, [Group II], comprises an out-ofbalance weight held by flexible links and rotated. As shown, the weight 21 has attached to it strips 22, 22 which are held at their outer ends by pins 9, 19 in the end of a shaft 10 and a supporting bush 18 respectively, a torque tube 8 serving to transmit the torque from the shaft 10, which is driven by means of a pulley 12, to the bush 18. The bush 18 is mounted in a housing 13, slidable in a trunnion 4 and carrying a screwed spindle 14 on which is a hand-wheel 16 by means of which the throw of the out-of-balance weight 21 may be varied. In a modification the torque tube 8 is dispensed with and the links 22 are tensioned by a spring to lie approximately in a straight line when stationary. In a further modification the out-of-balance mass is constituted by a weight attached to a pinion which is hung on a chain supported between the two bearings, so that the vibrations set up are always symmetrical. Alternatively the chain itself may act as the out-of-balance weight.
Patent GB-1011957-A (GB)
Title: Improvements in or relating to apparatus for the display of information as to the positions of moving and stationary objects
Inventor: WIKKENHAUSER GUSTAV
IPC: G01S7/16
Filed: 1963-05-29
Abstract: 1,011,957. Radio navigation. S. SMITH & SONS (ENGLAND) Ltd. May 29, 1964 [May 29, 1963], No. 21397/63. Drawings to Specification. Heading H4D. In a radio navigation system a pulse radar plan-position indicator (P.P.I.) display is photographed, the image on the processed photographic film is projected on to a screen, a television camera scans the projected image, a line is introduced into the image, the line starting at the origin on the P.P.I. display and moving in synchronism with the scanning aerial of the radar, and the television camera output is transmitted omni-directionally. The 'line may be introduced into the image by a driven pointer lying against a screen and a half-silvered mirror. A 400 c/s. tone may be radiated on the television sound channel by a directional array which rotates together with the radar aerial; this signal may be rendered audible at a ship carrying a television receiver or may be used to alter the contrast or brightness of the display thereon. In a modification the 400 c/s. signal is not used but the ships carry means responsive to the radar signals.
Patent GB-149951-A (GB)
Title: Improvements in and relating to electric arc welding apparatus
IPC: B23K9/00
Filed: 1920-07-16
Abstract: 149,951. Siemens - Schuckertwerke. Aug. 19, 1919, [Convention date]. Uniting by fusion. - In an electric arc welding apparatus of the type in which the electrode and work form opposite poles, and in which the work plate and the electrode holder are capable of being moved relatively to one another in three directions, a support which forms a longitudinal guide for a slide carrying the electrode holder is arranged over the work plate so that the support and plate are relatively movable transversely to the longitudinal direction of the support, so that the electrode can be brought over each point of the work plate, the electrode holder being also movable in a vertical direction relatively to the work plate. In the form shown the work table 17 is fixed and the wire electrode 12, which is fed from a drum 13 by a motor 18 and flexible shaft 19, is carried by a head 11 mounted in a slide 14, laterally movable on a support 16, which is vertically movable on a pillar 15 round which it can also turn. In another form in which the electrode is of carbon and welding-material separately fed in wire form, the wirefeed motor is carried by the welding head, which slides on a support that is similar to the support 16, but only vertically movable, and the table is movable in an horizontal plane in a direction at right-angles to the head. The head may be rocked in its support to vary the inclination of the electrode for welding angles &c. The Specification as open to inspection under Sect. 91 (3) (a) states that the work table may be movable relatively to a fixed welding head. In welding seams, the work table and welding head may be moved by hand wheels or power. This subject-matter does not appear in the Specification as accepted.
Patent GB-224323-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F01B9/02
Filed: 1923-08-25
Abstract: 224,323. Felies, J. F., Vijgeboom, W., and Vijgeboom, M. C. Aug. 25, 1933. Crank linkages.-To cause a piston of an internal-combustion engine to dwell at the end of its stroke, it may be connected to an auxiliary crank 18, Fig. 14, pivoted to the main crank 19 and an eccentric crank 25 which has non-uniform angular velocity; the crank 18 may, however, be mounted on a spur wheel which rotates inside a fixed spur wheel three times its diameter or outside a fixed spur wheel of equal diameter. The piston may be connected to a block 28, Fig. 15, which is constrained to move in a circle and to slide in a slot 27 in a disc rotating with the main shaft. It may be connected to a member 34, Fig. 17, which is connected by a radius arm 35 to a pivot 36, and which slides on a lever 37 pivoted at 38; the lever is connected by a rod 39 to a crank 40 on the main shaft. It may be coupled through a connecting-rod 41, Fig. 18, with a lever 42 which is mounted on a rod 44 connected to a crank 45 on the main shaft; a crank 46, on this shaft, oscillates a bell-crank 48, 49 which is connected by a rod 50 with the lever 42.
Patent GB-781878-A (GB)
Title: Improvements in or relating to colour television transmitting systems and receivers therefor
Inventor: BILLIN JAMES JOHN
IPC: H04N11/12
Filed: 1954-07-27
Abstract: 781,878. Colour television. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 15, 1955 [July 27, 1954], No. 21834/54. Class 40 (3). In a colour television system generally of the American N.T.S.C. type in which the chrominance signals are transmitted on a carrier wave lying outside the frequency band occupied by the luminance signals, chrominance synchronizing signals are transmitted continuously in the form of a pilot carrier wave. In one way of carrying out the invention, the pilot wave is located on the opposite side of the luminance carrier wave to that occupied by the chrominance carrier wave and is spaced therefrom by the same frequency as the chrominance carrier wave. In another way of carrying out the invention, the pilot is located on the same side of the luminance carrier as the chrominance carrier wave but at a frequency equal to onethird or one-quarter of the frequency difference between the carriers. Thus, in a specific example, a 0-3 Mc/s luminance signal is transmitted with an upper vestigial sideband of 1.5 Mc/s and the chrominance carrier is located 2.66 Mc/s above the luminance carrier. The synchronizing pilot wave is then located either 2.66 Mc/s below the luminance carrier, just at one end of the luminance signal band and having a frequency equal to an odd multiple of one half line scanning frequency, or above the carrier within the vestigial sideband at onequarter as one-third of 2.66 Mc/s. In a receiver for use in the system employing the homodyning principle to effect quadrature detection of the chrominance signal, it is merely necessary to provide an amplifier for the pilot wave with a quadrature output transformer to obtain suitable detection signals. Specification 754,742 is referred to.
Patent GB-730178-A (GB)
Title: Improved sand cores and moulds for the casting of metals
Inventor: SHEEHAN JOHN JOSEPH
IPC: B22C1/22
Filed: 1951-09-18
Abstract: Metal-casting cores and moulds are made from sand coated with a wax as a water-repellant, and a natural or synthetic resin binder. The wax coating enables satisfactory cores and moulds to be obtained without the addition of starchy materials.  Specified resins are those resulting from urea- and phenol-aldehyde thermosetting condensates.  In examples: (1) 10 pounds core sand is wetted with 0.05 pounds montan wax in 200 c.c. benzene.  The sand is allowed to dry, treated with 0.36 pound methylolurea in aqueous solution, moulded and baked.
Patent GB-573264-A (GB)
Title: Applying protective coatings to surfaces
IPC: C09D5/46
Filed: 1943-12-31
Abstract: Coating a surface by melting a solid thermoplastic polythene composition and projecting the liquid so produced on to the surface to be coated in conjunction with a blast of gas heated sufficiently to maintain the composition in the molten state until it impinges on the surface.  Polythene compositions having a melt viscosity at 190 DEG  C. which allows between 70 and 250 grams to extrude per minute from a standardized jet under specified pressure are preferred. Polyisobutylene, bitumen, shellac or rosin, paraffin wax, calcium carbonate, titanium dioxide, dyes and pigments may be added to the polythene.  Metal spraying pistols in which the composition is melted in or near the nozzle from which it is sprayed, or is fed to the melting zone in the form of extruded monofil, or is melted in a container connected to the spraying nozzle by a pipe may be used for the projection of the liquid.  An undercoating of cyclo-rubber, Thiokol (R.T.M.) or asbestos is usually applied.  It is preferred to spray the composition at a temperature between 5 DEG  C. higher and 50 DEG  C. higher than its melting point and in conjunction with a blast of gas also heated to within this range of temperature, and to keep the surface at a temperature between 5 DEG  C. and 50 DEG  C. less than the melting point of the resin.  The surface may be displaced, e.g. rotated, whilst being sprayed.  Hot air is the preferred hot gas.  Specification 566,198, [Group III], is referred to.