baber/WOPTO huggingface dataset:
Patent GB-524865-A (GB)
Title: Improvements in the control surfaces of aircraft
IPC: B64C3/54
Filed: 1939-01-27
Abstract: 524,865. Aircraft control surfaces. ARENDS, H. M. Jan. 27, 1939, No. 2806. [Class 4] An aircraft has elevator flaps 10 fitted with tips 11 each tiltable simultaneously or independently about two hinge lines 12, 13 at an angle to one another. The triangular frame between the hinge lines may itself be covered to act as a continuation of the flaps. The elevators 10 themselves are movable in the same or opposite directions, and by adjusting the various parts the functions of the usual elevator rudder and ailerons may be performed and the rudder and ailerons dispensed with. The rear fin also may be reduced in size or eliminated. The elevators may be in one plane or set at a dihedral angle. The tips 11 may have parts 19 extending into cut away parts of the elevators. The hinge axes 12, 13 may run into the rear edge of the elevators instead of into the forward edge as shown, in which case the triangular frames have forwardly facing apices.
Patent GB-577285-A (GB)
Title: Improvements in networks for coupling the input of an amplifier to the output of a preceding circuit
IPC: H03F1/50
Filed: 1942-03-03
Abstract: 577,285. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. March 3, 1942, No. 2811. Convention date, March 6, 1941. [Class 40 (v)] A network for coupling an amplifier to a preceding circuit the output from which consists of an asymmetric waveform, e.g., as shown in Fig. 1, is arranged to be such that the bias on the amplifier instead of varying with signal amplitude is so arranged as to produce a compensating voltage so that a constant bias is obtained. The network comprises a series capacity C connected between the grid of the amplifier L2 and the load resistance R2 of the preceding circuit, shown as a diode detector D, Fig. 3, and a shunt impedance arm R connected on the amplifier side of the series capacity in series with means to produce the compensating voltage. Fig. 3 shows the application to a goniometric apparatus for direction indicating in which a rotating element modulates the high frequency waves received and an intermediate frequency so modulated is applied to the detector D. The coupling network applies the demodulated signal to a modulator.L2 together with the output of an oscillator L3, the output amplified by the valve L4 is applied to the search coil of a goniometer rotated in synchronism with the rotating element which may be the antennµ or the coil of a goniometer. The outputs from the goniometer are amplified by the valves L5, L6 and feed push-pull voltages to the deflecting plates of a cathode ray tube. The compensating voltage is produced by capacity C1 in series with resistance R and connected to a tapping on the load resistance R2 through a resistance R1 such that the combination C1, R1 eliminates the asymmetrical waveform.
Patent GB-248154-A (GB)
Title: Improvements in steam turbine power plants
IPC: F01K7/22
Filed: 1925-01-31
Abstract: 248,154. English Electric Co., Ltd., and Chittenden, J. P. Jan. 31, 1925. Controlling superheat. - Regulation of the reheating of the steam between the stages of a turbine is effected by making the speed of the pump 30 which circulates the heating fluid dependent on the quantity of steam passing through the turbine. This may be done by driving the pump 30 by means of an auxiliary turbine 33 supplied by steam tapped from the first stage of the main turbine through a pipe 34. Alternatively, the pressure existing in the main turbine may be used to actuate the control valve of the auxiliary turbine; or the control valves of the two turbines may be interconnected. An electric driving motor with a rheostat control may replace the auxiliary turbine.
Patent GB-104359-A (GB)
Title: Improvements in Loom Dobbies.
Inventor: LEEMING FRANK
IPC: D03C1/12
Filed: 1916-02-25
Abstract: 104,359. Leeming, F. Feb. 25, 1916. Dobbies.-In a dobby having crank-wheels operated by partly toothed wheels, the crank-wheels are mounted in two sets upon stationary shafts, and the corresponding sets of partly toothed wheels are slidably mounted upon their actuating-shafts, so that they may individually be moved along the shafts to engage or disengage the crank-wheels by levers controlled by the pattern mechanism. As shown, the crank-wheels 4, 4a Fig. 2, which actuate the jacks 2 through connecting-rods 3, are mounted on shafts 5, 5<a> carried by brackets 6, 6<a>, which are loosely mounted on fixed shafts 7, 7<a> and are supported by grids 8, 8<a> and give-way cross-rods 9, 9<a>. The partly toothed wheels 12, 12<a> are splined on their shafts 10, 10<a>, which are driven by spur and bevel gearing from an upright shaft rotated through a clutch. Annular pieces c are loosely mounted and held on the hubs of the wheels 12, 12<a> and have pins f, f' engaging cam-slots in levers 14, 14<a>, which are loosely mounted on a fixed shaft h and are controlled by the pattern chain on the barrel 15, the arrangement preferably being such that, when the levers 14, 14<a> are raised, the pieces c are moved by the cam-slots and slide the wheels 12, 12a along their shafts into engagement with the crank-wheels, which are thereby rotated through half a revolution to move the rods 3 from one dead-centre position to the other. Blank spaces on the wheels 4, 4a engage correspondingly-shaped blank spaces on the wheels 12, 12<a>, or on the pieces c, to hold the wheels 4, 4a against rotation after each movement. Rotation of the pieces c is prevented by surfaces thereon engaging corrsponding surfaces on the levers 14, 14<a>. All the levers 14, 14<a> may be raised to cause all the wheels 12, 12<a> to engage their crank-wheels by cross-rods 20, 20<a> extending between levers 19<a>, which are connected by a shaft 23 and a rod 22 to a hand-lever 21, the toothed wheels being then rotated by a hand-wheel to give the crank-wheels a quarter of a revolution to bring all the healds to a central position. The shaft of the pattern barrel 15 is supported between levers loosely mounted on the shaft 7<a> and held in adjusted position by spring- controlled rods, so that the pattern barrel may yield in case of obstruction. The pattern barrel is driven by a toothed wheel 30, Fig. 9, with short teeth w and mounted on the shaft 15b of the barrel, being intermittently rotated by a partly toothed wheel x secured to a spur-wheel loosely mounted on the shaft 7<a> and engaging the driving- gear on the shaft 10<a>. When the clutch on the vertical driving-shaft is disengaged, the weaver can rotate the shaft 10<a> by a hand-wheel thereon and actuate all the other parts of the dobby. The crank-wheels &c. may rotate in either direction during the working of the dobby. The levers 14, 14<a> and the jacks 2 have slots to engage their shafts h, r and are held in position by rods u, s respectively.
Patent GB-654409-A (GB)
Title: Improvements in machines for the drying of sheet material
IPC: G03D15/02
Filed: 1948-01-31
Abstract: 654,409. Drying photographic material. MORSE, S. H. Jan. 31, 1948, No. 2901. [Class 98 (ii)] [Also in Group XIII] In apparatus of the kind in which a sheet to be dried is taken up on an endless band thickened at its free edges and guided on a revolving drum, the edges of the band overlie end shoulders on the drying drum which are spaced apart by a distance less than the width of the band and which are formed by the peripheral outer ends of a single maximum diameter portion of the drying drum. As shown, the band 13 passes over the major part of the surface of a heated drum 10, and over a driving roller 15, fixed idler rollers 16, 17, 18, a jockey roller 19, a fixed idler roller 20, and adjustably mounted rollers 21, 22. The drum 10 and the rollers 15, 16, 17, 18, 20 are pivoted horizontally in side frames 12 of the machine, and the band has thickened edges which overlie peripheral shoulders formed at the ends of the drum and the rollers. Roller 15 is driven anticlockwise and is in driving engagement with band 13, for which purposes it may be fluted. Jockey roller 19 is horizontally pivoted on members 27 pivoted to the frame at 28, which are acted upon by springs or weights to maintain tension in the band. Rollers 21, 22 are pivoted between brackets 34 pivoted to the side frames at 35 and movable in unison. An outwardly bowed bar 50 bears on the band surface to remove creases. The sheets are fed in over a bar 47, which removes excess moisture, and are carried round the drum. On emerging they are turned over by a guide plate 44 on to a plate 45, or on to the outer surface of the belt to be discharged near roller 16.
Patent GB-269995-A (GB)
Title: Improvements in and relating to coupling devices for rods, bars, tubes and the like
IPC: E04G7/14
Filed: 1926-02-01
Abstract: 269,995. Davidson, F. A. Feb. 1, 1926. Clips, band. -A coupling device for scaffold poles and the like comprises two open sleeve portions 7 formed integrally with their longer axes substantially at right-angles and complementary closure portions 11 hinged to each sleeve portion. The clamping bolts 16 are hinged to the sleeve portions and pass through slotted lugs 14 on the closure portions.
Patent GB-965483-A (GB)
Title: Improvements in and relating to a control circuit for a fluid pressure operated resistance welding machine
Inventor: LOWTON WILLIAM
IPC: B23K11/02
Filed: 1962-01-26
Abstract: 965,483. Fluid actuation of switches. MERITUS (BARNET) Ltd. Dec. 12, 1962 [Jan. 26, 1962], No. 2967/62. Heading H2B. A fluid pressure operated device for switching in a welding circuit when the pressure between welding electrodes reaches a predetermined value comprises a piston 21 with one end 22 of greater diameter than the other end, 23, the ends 22 and 23 being connected respectively to the " return " and " thrust " ends of the pneumatic machine operating cylinder, Fig. 1 (not shown). The piston 21 has a shoulder 24 which actuates a micro-switch 25 through a roller 27 when the piston 21 is moved.
Patent GB-1130491-A (GB)
Title: Stabilised formaldehyde solutions
IPC: C07C45/86
Filed: 1966-01-21
Abstract: 1,130,491. Stabilized formaldehyde. MONSANTO CO. 21 Jan., 1966 [21 Jan., 1965], No. 2967/66. Heading C2C. Aqueous solutions of formaldehyde containing at least 38% by weight of HCHO are stabilized by dissolving therein at least 1 p.p.m. by weight of a polymer which is polyvinyl acetate, a partially hydrolysed polyvinyl acetate in which less than 50% of the acetate groups have been hydrolysed, or a copolymer of vinyl acetate with allyl alcohol, methallyl alcohol or an alkyl acrylate or dialkyl fumarate in which the alkyl group(s) have 1-6 C atoms, the polymer having a weight average molecular weight of 800- 10,000, or a mixture of such polymers. The polymer may be added in the form of a solution in a water-miscible organic solvent, e.g. methanol, ethanol, acetone or methyl acetate, in such an amount that the stabilized solution contains less than 5% by weight. In the examples, 40% and 50% aq. HCHO solutions are stabilized with a 90% vinyl acetate-10% allyl alcohol copolymer of molecular weight 3800 or an unhydrolysed polyvinyl acetate of molecular weight 4500.
Patent GB-264334-A (GB)
Title: Improvements in fire-bars
IPC: F23H17/12
Filed: 1926-02-02
Abstract: 264,334. Evans, H. D., and Lawrence, E. Feb. 2, 1926. Firebars.-In firebars which have at intervals throughout their length elongated vertical slots 1 extending completely through the bar from top to bottom and separated by narrow integral transverse divisions 2, and in which the side cheeks 3 thus formed have apertures for the admission of air, the apertures 9 in one cheek are staggered in relation to those in the other cheek. Each cheek 3 has an external longitudinal rib 4, the ribs on adjacent bars being adapted to abut one another. Each rib 4 has a longitudinal groove 5 above it and a recess 6 below it, while vertical strengthening ribs 10 are arranged in the plane of the internal divisions 2. The slots 1 taper in width from the bottom to the top of the bar and the apertures 9 are arranged so that there is one aperture in each wall of each slot.
Patent GB-592954-A (GB)
Title: Improvements in machines for comminuting tough and ductile materials
IPC: B02C18/14
Filed: 1945-02-06
Abstract: 5 9 2 , 9 5 4 . Impact pulverizers. RUPRECHT, L. Feb. 6, 1945, No. 2993. Convention date, Jan. 29, 1944. [Class 59] [Also in Group XXII] A machine for comminuting tough and ductile materials such as magnesium, comprises a cutting tool or tools carried by a rotating head, and adapted to cut ribbon-like shavings from the end of a billet (.see Group XXII) which are fed to a number of pivoted beater blades 75 carried by the tool head 15. A casing 85 completely surrounds the head and is in the form of a spiral with a downwardly directed opening 81. A partition or screen 90 is provided within the chamber and a number of bars with bevelled edges extend across the screen at equally spaced circumferential intervals. The shavings are hurled against the bars by the beaters and are broken up into small particles which pass through the screen, finally dropping into a porous collecting bag 95.
Patent GB-187532-A (GB)
Title: Improvements relating to the actuating or operating mechanism of gear boxes, such as those employed upon motor cycles and the like
IPC: B62M25/04
Filed: 1922-02-02
Abstract: 187,532. Duckitt, W. Feb. 2, 1922. Controlling variable-speed gearing. - In pedaloperated gear control devices for motor-cycles and the like a hand or foot actuated trip is provided to prevent the unintentional overrunning of a particular gear. The gear is controlled by a shaft operated through pinion and sector gearing from a pedal 1 on the shaft of which is fixed a sector 11. An arm 17 loosely mounted on the shaft rides in a gap in the flange of the sector 11. A spring stop 19 engages the arm 17 and, in the position shown, prevents further depression of the pedal to bring the high gear into operation by the engagement of the arm 17 with one end of the gap. On withdrawing the stop 19 to effect a drive on the top gear, the arm 17 falls to the other end of the gap, and by its engagement with the stop prevents the pedal being moved to the neutral and reverse positions. The stop can be withdrawn by a hand-operated Bowden wire or in a modification, by the pivotal movement of the tread 23 of the pedal.
Patent GB-670399-A (GB)
Title: Improvements in disc clutches
IPC: F16D25/0638
Filed: 1950-02-06
Abstract: 670,399. Friction clutches. MASSARDIER, J. Feb. 6, 1950 [Dec. 8, 1949], No. 3047/50. Addition to 656,691. Class 80 (ii). Twin presser-plates a, b, which are simultaneously urged apart by oil-pressure applied to their faces a<SP>1</SP> through a shaft-duct, not shown in Fig. 2, to clamp friction disc-groups together for clutching a toothed wheel d to a shaft h, as in the parent Specification, are urged together for clutch disengagement by oil-pressure supplied constantly through a second shaft-duct k to act on presser-plate faces a<SP>2</SP> of smaller area than those a' of the engaging pressure faces. Figs. 4-10 (not shown) show two clutches as above on a common shaft and controlled by a threeway selector-valve.
Patent GB-305098-A (GB)
Title: Improved manufacture of sheet material suitable for making packages and other hollowbodies
IPC: D21J1/16
Filed: 1929-01-29
Abstract: 305,098. Rado, L. Jan. 30, 1928, [Convention date]. Linings, coatings, and coverings.-A compound sheet material capable of being drawn or pressed to form hollow bodies is made by coating paste board with a pellicle of cellulose hydrate, cellulose acetate, &c., which is coated on one or both sides with a water repellant substance, such as a solution of celluloid or of nitro-cellulose. Preferably the cellulose pellicle is pasted to a thin layer of paper before being attached to the pasteboard. The pasteboard may be coated on ore or both sides with cellulose pellicles, and may beused for making boxes, cartons and other containers by pressing or stamping.
Patent GB-489716-A (GB)
Title: Improvements in or relating to methods of modulating television and like signals upon carrier waves
IPC: H04N5/38
Filed: 1937-02-02
Abstract: 489,716. Television; modulating systems. BAIRD TELEVISION, Ltd., and BROWN, A. J. Feb. 2, 1937, No. 3062. Drawings to Specification. [Classes 40 (iii) and 40 (v)] Television and like signals comprising picture and synchronizing signals are modulated on to a carrier at separate stages of frequency multiplication. Oscillations from a master source are amplified and frequency-multiplied before modulation by synchronizing signals, the resultant being further amplified and frequency-multiplied before modulation with the picture signals. The synchronizing impulses reduce the carrier to zero or a low amplitude. Specification 460,222 is referred to.
Patent GB-675615-A (GB)
Title: Improvements in switching devices for tap-changing transformers
IPC: H01F29/02
Filed: 1950-02-07
Abstract: 675,615. Transformers. FOSTER TRANSFORMERS & SWITCHGEAR, Ltd., and JENNINGS, R. E. Feb. 6, 1951 [Feb. 7, 1950], No. 3105/50. Class 38 (ii). An on - load tap - changing transformer system has coarse and fine-step switches, SC and SF, respectively, mechanically interconnected so that movement of the fine step switch SF effects stepwise movement of the coarse step switch, the system being characterized in that each transformer winding feeding the fine step switch is divided into two sections, say a, b, with tappings, the voltages at which tappings are so arranged with one another to give a uniform voltage progression at successive contact positions 1, 2, 3 &c., and in that the two sections are connected by a single resistance, say R, which is centre-tapped for connection to a moving contact S2 of the course step switch. The windings a, b are divided into 2 v. volt steps with the exception of the first step of the winding b, which has only 1 v. volt difference. The steps of these windings are alternately connected to the contacts 1, 2, 3, &c., of the fine-step switch SF, the windings c, d being similarly divided and connected to contacts 13, 14, 15 of the fine-step switch so that the successive contacts 1, 2, 3, &c. all represent increments of 1 v. volts. The full range of voltage obtainable over the fine-step switch is equal to the increment between successive positions of the coarse-step switch. When the fine-step switch brush, in passing from one contact to another, is in contact with two contacts simultaneously, the energy thereby caused is dissipated in the resistors R, R1. The arrangement of the switches is as described in Specification 619,474, [Group XXXVII]. Specification 607,347 also is referred to.
Patent GB-1378625-A (GB)
Title: Method of assembling a journal and bearing of a rotary-piston internal combustion engine
IPC: F02B53/00
Filed: 1973-01-22
Abstract: 1378625 Rotary positive-displacement machines DAIMLER-BENZ AG 22 Jan 1973 [31 Jan 1972] 3149/73 Heading F1F In a trochoidal-type I.C. engine with two pistons 15, 16 a common shaft 6 has a journal 10 of greater diameter than the eccentrics 11, 12, closer to each of the latter than the thickness of a casing wall-part 5 and engaging with a plain bearing 9 between oil outlet bores 20. When the engine is being assembled the part 5 with the bearing 9 therein is moved in a perpendicular attitude along the shaft until it abuts one side of the journal 10, Fig.2 (not shown) and is then tilted as shown in Fig.5, moved radially to align the bearing with the journal, Fig.6 (not shown) and finally shifted axially while being turned back to its former perpendicular attitude to bring the bearing on to the journal.
Patent GB-620944-A (GB)
Title: Improvements in or relating to blowpipe burners
IPC: F23D14/82
Filed: 1947-02-03
Abstract: 620,944. Blowpipe burners. SINTERED PRODUCTS, Ltd., LENNOX, J. W., and SINCLAIR, C. E. Feb. 3, 1947, No. 3212. [Class 75(i)] A blowpipe burner comprises a disc of sintered porous metal disposed in the gas line. The porous metal may consist of sintered bronze, brass, iron alloy, nickel, nickel alloy or copper, and may be disposed between a mixing chamber and burner nozzle. The burner may comprise two discs one before the mixing chamber and one after the mixing chamber separated by a tubular distance piece.
Patent GB-479240-A (GB)
Title: Improvements relating to the treatment of coconut fibres in preparation for formation into sliver
IPC: D01C1/02
Filed: 1937-02-03
Abstract: 479,240. Forming slivers of coconut fibre. JAGT, B. G. H. VAN DER. Feb. 3, 1937, No. 3230. Convention date, Feb. 26, 1936. [Class 120 (iii)] In the preparation of coconut fibre for formation into sliver the fibre, without preliminary treatment with alkali, is treated with a binding or adhesive material, e.g. starch water or rubber latex. The fibres are then partially dried to the desired degree and formed into a sliver on a carding-engine and drawing-frame. A dry adhesive powder may alternatively be used, while the fibre may be dyed, impregnated or bleached before treatment with adhesive. Specification 313,016, [Class 120 (iii)], is referred to.
Patent GB-1376753-A (GB)
Title: Moulding apparatus for the production of hollow bodies from thermoplastic material
IPC: B29C49/48
Filed: 1972-01-24
Abstract: 1376753 Blow-moulding articles with undercuts WORSON SA 24 Jan 1972 [29 Jan 1971] 3267/72 Heading B5A Apparatus for producing a hollow body having an undercut formed by an indented circumferential wall comprises an injection mould and a blow-mould opening towards each other, the blow-mould comprising a one-piece main body portion, a base portion defining the end opposite the opening, and a plural-part auxiliary body forming the undercut portion, the parts of the auxiliary body radially movable together to define the undercut and apart so as to remove the hollow body from the mould and a rotatable core member carrying two oppositely extending mould cores located between the injection and blow-mould cavities so that, in one position thereof, it is displaceable relatively to the injection mould to insert a core into the injection mould and subsequently withdraw it therefrom with the injection moulded preform and, in the other position thereof, it is displaceable relatively to the blow-mould to insert the core and preform into the blow-mould and subsequently withdraw the core and blow-moulded article therefrom. As shown in Fig. 1, a preform 7 is formed on core 3a in injection mould 2 by injection means 1. After axially withdrawing the core 3a and preform 7, core plate 3 is rotated by 180 degrees and hollow mould 4 advanced thereon by means of mould plate 5. After blow-moulding, e.g. through core 3a with or without vacuum assistance, mould 4 is withdrawn by plate 5, auxiliary mould parts 4b opened and the moulded hollow body 6 ejected by members 8 or by compressed air. In Fig. 2 (not shown), the undercut portion is at the narrowest portion of the article, mould plate (15) being separated, from the main body of mould (14) before ejection of the article. The auxiliary mould body may be in two parts (Fig. 3, not shown), or multipart, e.g. eight (Fig. 4, not shown). The moulds may be multi-cavity, the plate 3 having a plurality of cores for co-operation therewith.