baber/WOPTO huggingface dataset:
Patent GB-794305-A (GB)
Title: Method of bending glass sheets
IPC: C03B23/027
Filed: 1956-06-04
Abstract: 794,305. Bending glass sheets. PITTSBURGH PLATE GLASS CO. June 4, 1956 [June 6, 1955], No. 17171/56. Class 56. In a glass-bending mould comprising a stationary centre portion 32 and counterweighted wing portions 42, 44 pivoted at 56 to its ends, the mould is divided by metal plates 114 into three compartments-a central compartment which does not require so much heating in view of the flatness of the curvature to be imparted to the glass, and end compartments requiring greater heating in view of the severe curvatures to be imparted near the ends. The heat in the bending lehr is adjusted to correspond with the compartments. The plates 114 are pivoted at 112 to right-angled arms 110 pivoted at P to arms 96 pivoted at 97 to the mould. The frames carrying the plates are initially in the position shown on the right ; after the glass (G) has been positioned on the mould the frames are swung about their pivots P so that the plates extend vertically above and transversely across the glass as shown on the left.
Patent GB-676015-A (GB)
Title: Improvements in or relating to the balancing of reciprocating engines
IPC: F16F15/26
Filed: 1949-06-29
Abstract: 676,015. Balancing engines. CATERPILLAR TRACTOR CO. June 29, 1949 [April 16, 1949], No. 17174/49. Class 122(iii) Balancing means for an engine having secondary force and secondary moment unbalance comprises two pairs of balance weights mounted for rotation at twice engine speed about axes parallel to the crankshaft, the first pair of weights being in phase and rotating in the same direction as the crankshaft and the second pair of weights rotating in the opposite direction to the crankshaft and being in opposite phase and at right-angles to the first pair. In a V-8 engine having the crankpins 12 all in one plane and the cylinders in one bank offset with relation to the cylinders in the other bank so that two connecting rods, one associated with a piston in each bank, are connected to a single crankpin, the secondary out-of-balance forces are balanced by a pair of weights 16, one at each end of the crankshaft 13, carried on a piston 17 driven from the crankshaft through a pinion 19 and an idler wheel 18 in the same direction as and at twice the speed of the crankshaft which rotates at twice crankshaft speed and in the opposite direction thereto.
Patent GB-1339947-A (GB)
Title: Method and apparatus for constructing an underground railway
IPC: E21D9/00
Filed: 1971-05-26
Abstract: 1339947 Underground railway MINING EQUIPMENT MFG CORP 26 May 1971 [28 May 1970] 17195/71 Heading B7L [Also in Division E1] A method of constructing an underground railway, comprising a plurality of tunnels at least one of which is a platform tunnel 4 disposed between and communicating with a first and second carrier tunnel 5, 6, comprises the construction of the platform and carrier tunnels as a continuous gallery formed by gradually tunnelling from the first carrier tunnel through the platform tunnel to the second carrier tunnel. The gallery is formed with the aid of any suitable underground tunnelling machine housed in a shield (see Division E1), the tunnels having substantially the same cross-sectional profile and having a horizontal partition 29 to give upper and lower levels on which the rolling stock 25 can travel. When two of the carrier tunnels intersect at the same level, Fig. 7, ramps 70 are provided through the partition 29 to enable all traffic in one tunnel 31 to transfer to the upper level and all traffic in the other tunnel 30 to transfer to the lower level thus avoiding crossings at the intersection. Each carrier tunnel may have one or two tracks on each level and each platform tunnel has a platform extending for substantially one half the width of the tunnel, all the traffic being directed to the other half of the tunnel width.
Patent GB-661732-A (GB)
Title: High frequency dielectric heating method and apparatus for bonding thermoplastic material
IPC: H05B6/50
Filed: 1949-06-29
Abstract: 661,732. Supply systems for high frequency heaters. RADIO CORPORATION OF AMERICA. June 29, 1949 [June 29, 1948], No. 17226/49. Class 38 (iv). [Also in Group XI] In a method for the high frequency bonding of thermoplastic dielectric material (see Group XI), the high-frequency voltage across the work plates 5, 6 is supplied by a generator 11, and is increased from a minimum to a maximum value at a controlled rate in response to the energization of the generator. In one embodiment a variable capacitor 10, normally held in a zero capacity position by a spring 33, is brought to a maximum capacity position by a motor 27 when a switch 26 is closed. The rate of voltage increase is adjusted by a contact 40 and a potentiometer resistor 28, which effects variation of the motor speed. The generator 11 and motor 27 are fed through rectifiers 13 and 35 respectively, and oscillations are suppressed when the switch 26 is open, by a potential applied to the control grid 20 of the oscillator tube 12. Alternatively, Fig. 2, a saturable reactor 48, 49 in the rectifier 13 power supply has the saturating winding 49 supplied with current from a potentiometer 51, 52 when a switch 19 is closed. The current builds up to decrease the reactance of the reactor 48 and thereby causes the rectifier output voltage and hence the load voltage to build up. The rate of voltage increase is varied by adjustment of a resistor 50.
Patent GB-532110-A (GB)
Title: Improvements in or relating to electrical discharge circuits
IPC: H03K4/12
Filed: 1939-06-13
Abstract: 532,110. Valve generating circuits. THORNTON, A. A. (Philco Radio & Television Corporation). June 13, 1939, No. 17261. [Class 40 (v)] In a saw-tooth voltage generator, the slowstroke discharge circuit 5, 7, is isolated by the charging valve V1 from the power supply 6 during the discharge portion of each cycle, thereby preventing distortion of the wave-form by transients or other disturbances from the power supply. The valve V1 is biased below the point of plate current cut off except in the presence of a pulse from generator 1, when the condenser 5 is rapidly charged. During the discharge period of each cycle, the circuit 5, 7 is isolated from the power supply as the valve V1 is then non-conducting. The valve V1 may be arranged as a blocking-oscillator, thus generating its own pulse signals, Fig. 2 (not shown). Specification 485,999 is referred to.
Patent GB-828878-A (GB)
Title: Improvements in or relating to individual warp-tensioning devices for looms
IPC: D03D49/06
Filed: 1958-05-30
Abstract: 828,878. Warp stop motions; tensioning warp threads. SOC. D'APPLICATIONS GENERALES D'ELECTRICITE ET DE MECANIQUE. May 30, 1958 [July 2, 1957], No. 17318/58. Class 142(2) Tensioning springs 1 for individual warp threads 9 in a circular or other loom hook on to a bar 5, pass under a grooved rod 2, and project through a reed 12. The loom is stopped if a wire closes an electric current by touching the cap 15 of the reed due to a thread breaking or becoming too slack, or by touching a rod 19 due to a thread becoming too tight.
Patent GB-241295-A (GB)
Title: Apparatus for marking and orienting cores or samples to be taken from the bottom of bore holes
IPC: E21B47/026
Filed: 1924-07-19
Abstract: 241,295. Dixon, A. F. July 19, 1924. Bore-hole apparatus.- Before cutting, cores are marked by means of a drill, wheel, chisel, &c. d eccentrically carried by a holder a maintained in a definite position in azimuth by means of a gyroscope b. The gyroscope is placed in a watertight compartment and the drill &c. d is driven by a spring, electric, or compressed-air motor c. The motor c may be started automatically when the drill &c. d or other member contacts with the bottom of the bore-hole.
Patent GB-612950-A (GB)
Title: Improvements relating to closure members for motor vehicle petrol or oil tanks, radiators, or like fluid receptacles
IPC: B60K15/04
Filed: 1946-06-11
Abstract: 612,950. Closures for petrol tanks &c. WILMOTBREEDEN, Ltd., and SPICER, H. J. June 11, 1946, No. 17393. [Class 125 (iii)] A closure member for a motor vehicle petrol or oil tank, radiator or like fluid receptacle comprises the combination of a hollow fitting a adapted to be attached to the entrance or neck of the receptacle by a flexible tube b<1>, a cover piece i attached by a pivot h to the fitting a, and a spring device o, p, r associated with the pivot for holding the cover piece in both its closed and open positions. The spring device comprises a stem o pivotally attached at its upper end to the cover i and surrounded by a helical compression spring p the lower end of which is supported by a convex abutment q at the bottom of cavity in a hollow lug f formed at one side of the fitting a, and the upper end of which contacts a shoulder r upon the stem o. The hollow fitting a may contain a pipe c, the outer flanged end of which forms a seating d. A narrow annular clearance e between the tube c and the fitting a forms an air vent. To the underside of the cover piece i is attached a sealing piecej which is held, in the closed position of the cover, in close contact with the pipe s by a spring k. The cover may be provided with a barrel lock u. In a modification, the stem r is formed with a transverse head engaging within a recess within the cover piece i or the stem piece o may be omitted, the helical compression spring p being inserted within a closely fitting cylindrical cavity within lug f, being supported at its lower end by a transverse pin, and co-operating with the cover piece i at its upper end either directly or through the medium of a ball.
Patent GB-458410-A (GB)
Title: Device for compressing air by means of water under pressure
IPC: F04B39/00
Filed: 1935-06-18
Abstract: 458,410. Hydraulic air compressors. WEBER, H., 138, Forchstrasse, Zurich, Switzerland. June 18, 1935, No. 17466. [Classes 8 (i) and 71] Water entering by a nozzle 5 entrains air through a pipe 6, and the mixture flows down a pipe 4 and emerges through slots 7 where the water falls into a cup 8 and overflows into the con. tainer 1 while the air rises into a float 10 guided on the pipe 4. The air is delivered through apertures 23 in the float and passes to an outlet pipe 22. The float in rising actuates a lever 12 through a link 11 to open a water outlet valve 18. The various joints and pivots fit loosely allowing their operation even when coated with lime precipitated from the water.
Patent GB-1093395-A (GB)
Title: Advancing hydraulic support assembly
IPC: E21D23/04
Filed: 1965-04-26
Abstract: 1,093,395. Advancing pit-props. GEWERKSCHAFT EISENHUTTE WESTFALIA. April 26. 1965 [May 11, 1964], No. 17484/65. Heading E1E. A walking support system comprises props 1, 3, 10 on a base member (of two parts 4, 12) supporting a cantilevered roof beam 11, 16 the props 1, 10 being rigid and perpendicular to the base member 4, 12 and the prop 3. 6, 9 having an upper part 3 and a lower part 6. 9 connected by a joint 7, 8. The props 1, 10 have rigid joints and the prop 3 has articulated joints. The props 1, 3 are clamped in a box frame 4a on the base member 4, the parts 4, 12 being connected by spring strip members pivotably connected thereto for relative movement between the relevant props.
Patent GB-319060-A (GB)
Title: Improvements in or relating to straightway valves
IPC: F16K3/06
Filed: 1928-06-16
Abstract: 319,060. Curtis, A. June 16, 1928. Oscillatory discvalves; leakage, preventing. - In an oscillatory 'disc or gate valve in which closure-members 6, 7, pressed apart by an interposed spring 14, coact with aligned ports 4, 5 in a twopart casing 1, 2, the operating spindle 19 is formed with a collar 19<a> and is pressed by a spring 21 against packing- rings 20 seated in an annular enlargement 2c of the bearing bore in the casing. The spindle, to which the closure member r 6 is attached, may, for this purpose, be formed d with a radial projection or crank arm 18 fitting an aperture 17 of corresponding shape in the closure member extension 6<1>. The sealing-faces 4, 5 in the casing are extended so that the annular seating-surfaces 9, 12 on the closure-members maintain engagement therewith in all positions. An aperture 6<*> in the closure-member 6 allows the pressure of the fluid to act upon the closure-member 7, the latter being of circular formation and slidably seated in a cylindrical recess in the member 6. The members are further recessed to position a conical spring 14 carrying a knob 15. A lug 6a on the member 6 locates the parts in the closed position. To facilitate assembly, a packing- washer 3 is located by an annular flange 1<*> on the casing-member 1.
Patent GB-202462-A (GB)
Title: Improvements in files for papers, loose leaves, documents, pamphlets and the like
IPC: B42F13/40
Filed: 1922-06-26
Abstract: 202,462. Atherton, E. B., and Edson (Printers), Ltd. June 26, 1922. No Patent granted (Sealing fee not paid). Perforators; covers.-In a cover or file 2 having extending inwardly from its back a perforated strip 3 to which the similarly perforated sheets 11 are attached by a cord or other fastening- device, a perforating-device is provided consisting of a strip hinged to the perforated strip and provided with punches which can coact with the perforations in the perforated strip when the filed sheets have been removed, to perforate sheets to he filed. The perforated filing-strip 3 is reinforced by a similarly perforated metal strip 4 to which is hinged at 7 a member 6 provided with punches 8 arranged so as to enter the perforations 5 when the member 6 is folded against the strip 4 and so perforate a loose sheet placed between the parts 4 and 6. Where only one punch is provided, gauge marks may be placed on the cover to enable the perforations to be made at the correct distance apart. Cord files; clamping-devices; attaching files to covers.-The perforated sheets are filed on an elastic cord 12, loops of which are passed through the perforations and attached to the strip 4 by wire retainers 13, 14 through the eyes of which the loops pass. Length-adjusting discs 15 are provided for the elastic cord. Springs 9 may be attached to the hinge 7 so that when the papers 11 are filed the member 6 presses against them or against a stiff blank member resting on them and attached to the strip 4. The member 6 may be hinged to the end of the strip 4.
Patent GB-1353828-A (GB)
Title: Elastroscopic toner fusing apparatus
IPC: G03G15/20
Filed: 1971-05-27
Abstract: 1353828 Electro-photographic fixing apparatus EASTMAN KODAK CO 27 May 1971 [27 May 1970] 17614/71 Heading G2H Electro-photographic fixing apparatus comprises an insulating block 13 having a slot 24 through which air is blown from a blower 28, electrical heaters 15 being mounted in block 13 to heat the air for fixing a toner image on a moving web 21. Web 21 may be conveyed by an endless porous belt 23 moving around a vacuum platen 31 or by a perforated metal drum (not shown). Platen 31 may be heated.
Patent GB-410332-A (GB)
Title: Improvements in or relating to grilling devices for gas cookers and the like
IPC: A47J37/06
Filed: 1933-06-21
Abstract: 410,332. Grilling - stoves. CANNON IRON FOUNDRIES, Ltd., CLAYTON, R. T., and BENTON, W. E., Deepfields, Bilston, Staffordshire. June 21, 1933, No. 17642. [Class 126.] In a grilling device for gas cookers and the like, an imperforate metal plate a is provided over and spaced from the upper surface of a horizontal metal grill element or fret b, so as to conserve the heat normally passing upwardly through the fret to waste. The plate may be formed of castiron, sheet metal, or two layers of sheet metal with insulating material between, and may be porcelain enamelled on its upper surface and edges. On its outer edge are teeth or lugs j with inclined sides. Below the perforated fret b is a supplementary perforated fret c, the apertures of the two frets being of similar spacing and dimensions but staggered relative to one another. The fret c may have downwardly projecting points k. The plate a and fret b are spaced apart by lugs d, f. Bolts e, passing through the frets b, c, screw into the lugs d and hold the frets and plate together.
Patent GB-426166-A (GB)
Title: A process for obtaining the hormone of corpus luteum
IPC: A61K31/56
Filed: 1934-06-14
Abstract: Impure preparations of corpus luteum hormone are dissolved in an organic solvent immiscible in water, and the solution extracted with a strong mineral acid.  The acid layer is removed and diluted with water or partly neutralized until the hormone is precipitated, and the latter is then extracted by means of a water-immiscible organic solvent and the solvent expelled from the extract to yield the purified hormone.  Organic solvents specified are benzene, toluene, chlorobenzene, ether, petroleum ether, methylcyclohexane, chloroform and mixtures of any of these; acids are sulphuric acid, hydrogen halide acids, phosphoric acid, and mixtures of these.  According to examples (1) corpus luteum hormone purified in the manner described in Specification 401,574 is dissolved in benzene, the solution extracted with sulphuric acid of 50 per cent strength and the acid extract then diluted to 20 per cent strength and extracted with ether; (2) corpus luteum extract dissolved in ether is extracted with hydrochloric acid (30 per cent) and the acid extract nearly neutralized with sodium bicarbonate solution and extracted with petroleum ether.
Patent GB-454785-A (GB)
Title: Improvements relating to glazing arrangements for supporting panes of glass and the like
IPC: B64C1/14
Filed: 1936-06-25
Abstract: 454,785. Glazing. RHEINMETALLBORSIG AKT.-GES., 125, Ulmenstrasse, Derendorf, D³sseldorf, Germany. June 25, 1936, No. 17665. Convention date, Dec. 21, 1935. [Class 20 (iii)] Astragals for supporting the transparent covering of the gun cockpits of aeroplanes and the like comprise a bar a having laps or glasssupports projecting on opposite sides alternately and strips d, e engaging the glass b, c, on the outside and secured to the bar a by bolts f. The securing strips d, e<1>, are placed on the side of the bar opposite to that on which the glass-engaging strip projects. The bar a may be stiffened by a rod g secured in a fold or by corrugations or like structural stiffening.
Patent GB-597590-A (GB)
Title: Improvements in or relating to the manufacture of resinous condensation products
IPC: C08F120/06
Filed: 1945-07-11
Abstract: Alpha-beta unsaturated mono- or poly-basic acids which are not readily polymerizable alone are heated with ammonia, or a substance giving rise to ammonia on heating such as ammonium carbonate or sodamide, till a resin is formed.  The non-resinous amides or ammonium salts of the above acids can also be heated to form a resin, those specified being maleamic acid ammonium cinnamate, and mono ammonium maleate.  Acids specified are maleic, chlormaleic, citraconic, itaconic, crotonic, fumaric, sorbic and cinnamic and their anhydrides.  Malic and citric acids may be used, since on heating these acids give alpha-beta unsaturated acids.  Half esters such as mono-n-butyl or -n-octyl maleates may be heated with ammonia. The process may be carried out in aqueous media, organic solvents, such as n-butanol and methyl alcohol, or under substantially anhydrous conditions.  Certain of the resin products are soluble in water, xylol and methyl alcohol.  In examples (1) a water solution of the resin from ammonia and maleic anhydride is treated with lead acetate to give an infusible precipitate; (5) zinc ammonium maleate is heated.
Patent GB-214511-A (GB)
Title: Improvements in shoes
IPC: A43B7/14
Filed: 1923-07-09
Abstract: 214,511. Brown, (nÚe Cline), B. July 9, 1923. Ankle and foot-arch supports.-A boot or shoe adapted to support the metatarsal arch of the foot is provided with a metal shank stiffener having a central longitudinal rib 15, and having its outer side 13 horizontal and its inner side 14 raised to support the foot. The forward end of the stiffener is extended at 24 and pads 21, 25 are arranged above and below this extension. The insole is moulded with a protuberance 20 to accommodate the upper pad 21. The boot is preferably assembled upon a last having a pocket to receive the protuberance 20. A triangular pad may be inserted at the rear of the part 14 of the stiffener to support the heel and the stiffener may be covered by a canvas layer 22.
Patent GB-317000-A (GB)
Title: Improvements in engine connecting-rods
IPC: F16J1/14
Filed: 1929-06-10
Abstract: 317,000. Ciampini, M. Aug. 8, 1928, [Convention date]. Connecting-rods.-A connecting.rod for an internal-combustion engine comprises two bundles a, b of plates, spaced at the middle by a strut c, and bolted at the ends to the piston e and to the big-end g. The Specification as open to inspection under Sect. 91 (3) (a) states that the width of the plates may be at right-angles to the crank-pin, in which case the plates are pivoted to the piston. This subject-matter does not appear in the Specification as accepted.
Patent GB-581810-A (GB)
Title: Improvements in tyres for vehicles
IPC: B60C5/00
Filed: 1942-12-15
Abstract: 581,810. Wheel tyres. URMSTON, J. Dec. 15, 1942, No. 17831. Convention date, Dec. 15, 1941. [Class 144 (ii)] A core 6 of expanded rubber, i.e., rubber having isolated cells filled with gas or air, placed in the inner tube 8 of a pneumatic tyre to support it in the event of puncture, has an impermeable extensible skin 12.
Patent GB-956912-A (GB)
Title: Outboard motor impeller hub
Inventor: CARLSON GEORGE ERNEST
IPC: F04D3/00
Filed: 1962-05-09
Abstract: 956,912. Axial-flow pumps. MINNESOTA RUBBER CO. May 9, 1962, No. 17893/62. Heading F1C. An outboard motor impeller hub comprises a rigid tubular member 5, secured to a rotary shaft for rotation therewith, having a number of rigid circumferentially spaced axially extending support elements 9 extending radially outwardly from its outer surface 8 and a number of axially spaced rigid annular anchor rings 10 extending continuously around the support elements 9 in radially spaced relation to the outer surface 8 of the tubular member 5. The tubular member 5, support elements 9 and anchor rings 10 are formed as one integral unit preferably of plastics. Axially extending channels 13 and the spaces between the rings 10 allow part of the rubber vanes (not shown), moulded to the hub, to completely surround the rings 10 and thereby provide a suitable bond.