baber/WOPTO huggingface dataset:
Patent GB-823713-A (GB)
Title: Improvements relating to fuel economisers for internal combustion engines
IPC: F02D9/00
Filed: 1956-06-11
Abstract: 823,713. Treating charge. SNAPE, A. E. June 7, 1957 [June 11, 1956], No. 17925/56. Class 7(2) A plate 1 for insertion between a carburetter and inlet manifold has an extra-air duct 14, 13 the entry 16 to which is blocked at low and high engine suctions respectively by lands 19, 18 of a piston correspondingly moved completely over to the left or right in a cylinder 4 by a spring 8 or engine suction acting through a duct 22, the entry 16 being connected to a vent 12 at intermediate enginesuctions via the inter-land annular recess,.. diametral bores 23 if provided, and a bypass 17. Co-acting surfaces 6, 7, and an annular projection 21 co-acting with a resilient inner cylinder cover 11, seal off the duct 22 and vent 12 at opposite ends of the piston travel. A manual screw 15 controls maximum extra-air supply.
Patent GB-179095-A (GB)
Title: Improvements in or relating to cuffs for garment sleeves
IPC: A41B7/04
Filed: 1921-07-01
Abstract: 179,095. Long, J. J. July 1, 1921. Shirt cuffs.-Relates to reversible cuffs of the type which are permanently attached to the shirt sleeves and consists in a construction enabling the cuff to be reversed by turning it about an axis longitudinal of the sleeve. The cuff is provided with two slits 17, Fig. 3, and a tab 16 which is sewn to the sleeve, and by twisting the cuff on the tab as indicated in Fig. 4 the cuff is reversed. The cuff may be secured at its free ends by buttons, and may be folded to form a double cuff.
Patent GB-873677-A (GB)
Title: A new or improved washing machine
IPC: D06F17/00
Filed: 1959-05-27
Abstract: 873,677. Washing machines. FALL, A. S. May 18, 1960 [May 27, 1959], No. 18020/59. Class 138 (2). A washing machine comprises an opentopped washing tank 10 disposed within and communicating at its base with a balance tank 15, and means for introducing gas or vapour above the liquid in the balance tank so that quantities of gas or vapour are periodically discharged from the balance tank into the washing tank to agitate liquid and articles therein. In Fig. 1, an air inlet 18 controlled by a valve 19 is connected to a blower 20 which draws air through a pipe 21 to produce a circulation of cooling air in the space between the tank 15 and an outer casing 17. The machine also includes a removable perforated plate 13, an electric heater 25 and thermostat 26. By means of a lid 22 the tank 10 can be sealed and the blower 20 used to empty the machine through a pipe 24. In Fig. 2 steam is used instead of air under pressure, the steam being generated in a looped section 27 of a tube having an inlet 29 and outlet 34. The section 27 is heated by a burner 31 controlled by a thermostat 32. The machine can be used as a wash boiler by opening a valve 35, thereby stopping the rhythmic movement of water between the tanks 10, 15.
Patent GB-171132-A (GB)
Title: Furnace and process of combustion
IPC: F23M5/08
Filed: 1920-07-02
Abstract: 171,132. Seymour, F. July 2, 1920. Tubes, water; locomotive-type boilers. - Water-circulating tubes b connected to the boiler are employed in the walls B and roof C of a steam-generator furnace. Similar tubes F covered with refractory material or cinders form the floor of the furnace. Figs. 7 and 8 show a locomotive boiler in which water spaces surround the fire-box, water-legs F with a space G between them for discharge of liquid ash being provided beneath the floor.
Patent GB-1433287-A (GB)
Title: Timers
IPC: G04C23/16
Filed: 1974-04-25
Abstract: 1433287 Time switches CONTROLS CO OF AMERICA 25 April 1974 [26 Oct 1973] 18065/74 Heading H1N A timer suitable for controlling refrigerator defrost cycles comprises a housing 12, a timing cam 44 rotatably mounted in the housing and having a slow rise/fast drop surface, motor and gear assembly 16 for rotating the cam 44, three contact-carrying switch blades 62, 56 and 72 mounted in the housing one above the other with respect to the cam with their distal ends adjacent for mutual co-operation of their contacts and biased towards the cam, the first of the blades 62 being closest to the cam and always in engagement with the cam, the second blade 56 being longer than the first so that it engages the rise after the first blade 62 drops at the fast drop portion S of the cam 44 and is thereby held out of contact with the first blade until the second blade 56 itself drops at the fast drop S, a yoke member 74 on a pivotal support (76, Figs. 4, 5 and 6, not shown) fixed in the housing and having an arm 82 projecting between the first and second blades and another arm 84 projecting between the second and third blades with the second blade being movable between the arms and the arms serving to determine the minimum spacing between the first and third blades whereby the third blade is held out of contact with the second blade while the second blade is in contact with the first blade as the first blade engages the slow rise of the cam 44 and the third blade is able to contact the second blade while the second blade is in contact with the cam. The cam 44 rotates once in twelve or twenty-four hours and in order to observe whether the motor is operating the cam 44 has a hollow hub 42 (Fig. 2) with a shaft 40 therein rotating at 13 r.p.m., for example, and with an end configuration 49 which readily indicates whether or not it is rotating and is clearly visible from the exterior of the housing. The exposed end of hub 42 has a configuration 48 whereby it may be manually advanced in one direction only. The motor and gearing form a subassembly in a casing 18 with cover 38 and cam 44 is journalled in cover 38 and in a cover 14 for housing 12. The contact blades are accurately located in slots in the housing wall by means of sheared-out tabs 86 received in cavities 87. Cover 14 and pointed tongues (88, Fig. 8, not shown) pressed out of the blades serve to retain the blades in the housing.
Patent GB-281357-A (GB)
Title: Improved process for coating iron articles with tin and zinc
IPC: C23C2/30
Filed: 1926-07-20
Abstract: 281,357. Liban, T. July 20, 1926. Coating by dipping; cleaning; fixes.-Zinc or tin coatings are applied to iron articles by dipping them into a molten bath or into a solution of a mixture of fluorine compounds and zinc chloride or zinc ammonium chloride, and then into the molten metal, which may contain a small proportion of aluminium. In an example, a mixture of 0.5-6 per cent of potassium fluoride, 10-20 per cent of ammonium chloride and 74- 89.5 per cent of zinc chloride is used. When the metal bath comprises a layer of lead floating on a layer of zinc, the molten bath or solution of salts is used so that it forms a protective layer through which the articles are passed before passing through the lead and zinc layers. For tin coating tallow, resin or palm oil may be added to the fluorine compounds. When feeding and discharging rollers are provided, these rollers may be cleaned by a flux containing fluorine compounds, and, prior to coating, the articles may be treated in an acid or water bath containing fluorine compounds. During zinc coating a zinc aluminium alloy containing a small proportion of aluminium may be added to the molten metal. Specification 257,262 is referred to.
Patent GB-530355-A (GB)
Title: Improvements in, or relating to, thermostatic fluid mixing devices
IPC: G05D23/13
Filed: 1939-06-22
Abstract: 530,355. Mixing-valves. WALKER, CROSWELLER & CO., Ltd., and EATON, J. June 22, 1939, No. 18173. [Class 135] A thermostatically controlled mixing valve particularly adapted for mixing water and steam has the two supplies controlled by separate rotary cylindrical valves. In the form shown in the Figure the ported valve seats e are secured to upstanding tubular parts b, c on a base plate a and are provided with equally spaced ports f arranged in one or two banks. The tubular valve members g have corresponding ports h and are fitted with cylindrical baffles j formed with numerous small openings. These baffles are omitted in valves designed to mix hot and cold water. The valves are arranged in a box-like mixing chamber having a central opening l discharging on a thermosensitive element n situated in a chamber p formed by a baffle q forming an extension of the box-like member. The mixture passes through an annular passage between the baffle q and an outer casing r to alternative outlets in the base plate a. The thermo-sensitive member comprises two spiral members n the upper one being secured to an adjusting spindle m rotatably mounted in the casing and provided with a handle v. The lower member is secured to a socket m rotatably mounted on a fixed pin m<SP>1</SP> and provided with a flange z. The flange z has a pair of opposed lugs having pin and slot connections with reciprocating bars x pinned to eccentric points on the valve members. One bar has spaced lugs 2 adapted to co-operate with a stop 3. In a modification the socket m is secured to a pinion meshing with mutilated pinions secured to the valve members. The pinion is also gearing to a vane retarder rotatably mounted in a cylinder filled with liquid.
Patent GB-488676-A (GB)
Title: Improvements in or relating to clutches
IPC: F16F15/123
Filed: 1937-07-01
Abstract: 488,676. Yielding clutch plates. BORG & BECK CO., Ltd., and BARKER, H. T. July 1, 1937, No. 18261. [Class 80 (ii)] In a clutch - plate having shock - absorbing tangential coil springs 16 in registering slots 12... 14 in the hub flange 2, the disc 3 and a retainer plate 5, the springs are mounted each on a separate carrier 17 which projects beyond both ends of the spring, the carriers being wholly or in part within the thickness of the clutch-plate and being located at their ends to retain the springs in position. In one form, Figs. 2 and 3, the carriers 17 are tubular and engage notches 15 in the hub flange. The retainer plate 5 is secured to the disc 3 by rivets 6 passing through notches 7 in the hub flange to allow circumferential play. Washers 18 may be mounted on the carriers 17 at the ends of the springs. In modifications, in which the disc 3 and plate 5 are in contact with the hub flange, the carriers are solid rods 21, Fig. 6, with ends 22 flattened to a thickness equal to that of the hub flange, or flattened bars 24, Fig. 8, with curved edges 25 ; or the carriers may be of elliptical, square, polygonal, or circular section with one or more flats. The carriers may be retained by portions pressed out of the disc and retainer plate. The friction disc may be arranged between the hub flange and a retainer plate, or the retainer plate may be omitted.
Patent GB-530414-A (GB)
Title: Resiliently mounted butt-plate for firearms
IPC: F41C23/06
Filed: 1939-06-22
Abstract: 530,414. Butt-plates for smallarms. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST BRNO. June 22, 1939, No. 18284. Convention date, June 22, 1938. [Class 119] A resiliently mounted butt-plate 1 is provided with a pivoted member 4 which can be swung into a position adjacent the butt-plate for transport, or can be moved into a position such that it can rest on the shoulder of the gunner to support the firearm when aiming, the member 4 being secured in either of these positions by a member 5<SP>1</SP> which constitutes the resilient support for the butt-plate. The butt-plate, which is pivoted at 2<SP>1</SP>, has a lip 12 engaging in a recess 11 in the breech casing, and the member 5<SP>1</SP> is resiliently and telescopically mounted in a sleeve 6 pivoted in the butt 7 at 14. The member 5' seats in a slotted portion of the butt-plate, the rounded head of the member 5' snapping into one of the recesses 13 or 13' in the member 4 to retain the latter in the required position.
Patent GB-937260-A (GB)
Title: Process for the catalytic dealkylation of aromatic compounds
Inventor: VERSTAPPEN JACOBUS JOHANNES
IPC: C07C4/18
Filed: 1961-05-19
Abstract: In the catalytic dealkylation of aromatic hydrocarbons in the presence of a hydrogen-containing dealkylation gas, a gas mixture containing hydrogen and methane is separated from the product, subjected to partial combustion with oxygen and used as dealkylation gas.  This treatment of the gas is effected as described in the parent Specification, oxides of carbon being removed as there described by reaction with steam to form carbon dioxide and removing the latter with caustic solution. Dealkylation is effected at 300 DEG -750 DEG C. with activated alumina, HF-treated alumina, silica-alumina, a Group 6 or 8 metal or oxide thereof on a support, zinc chloride and alumina or iron oxide-soda-alumina as catalyst.
Patent GB-236742-A (GB)
Title: Improvements in or relating to vehicle hood fittings
IPC: B60J7/12
Filed: 1924-08-01
Abstract: 236,742. Bunn, C. W. Aug. 1, 1924. Hoods.-In a hood fitting of the kind provided with two falling pillars and a cant-rail at each side, the cant-rail 1 is connected to the forward falling pillar 2 by two links 3, 4 as shown, the falling pillars 2, 9 are connected at top and bottom by pivoted links 10, 14, and a pair of upwardly-inclined pivoted links 15, 16 carry the hood-bow 17. The provision of the links 13, 14 converts the hood fitting into a seif-contained unit which may be fitted to the body of the vehicle without the necessity of carefully marking the centres of the falling pillars. The links 10, 14 are pivoted to the rear falling pillar 9 at 11, 19 respectively, and the extensions of the links are connected bv a stay 13, the pivot 19 of the lower link 14 also carrying the hood rear-stay 20 and the body plates 21. The link 15 is connected to the rear falling pillar 9 by a link 18.
Patent GB-186990-A (GB)
Title: Improved planes, wings or foils for aircraft, submarines, hydroplanes, and other totally immersed craft
IPC: B64C21/08
Filed: 1921-07-07
Abstract: 186,990. Thurston, A. P., and Bristol Aeroplane Co., Ltd. July 7, 1921. Submarine vessels, special apparatus for steering.-Pinions similar to those described in Specification 180,359 have an operating device which both projects them and alters their angles of incidence. A frame c, rolling on guides b of the plane a carries a shaft e to which the pinions are fixed. Control cables f, g are led from the mechanism in the cockpit described in Specification 180,359, and divide into cables h, i, and h, j respectively, the cables h passing round a pulley coaxial with the pulley l and a pulley o pivoted to the frame c and is attached to one end of a chain which engages the sprocket wheel k<1>. The other end of the chain is attached to the cable i which passes over a pulley coaxial with the pulley o. When the cable g is pulled in, the frame c is moved outwards by a stop r acting through a spring t until it is at the end of its track, when further movement of the cable q rotates the wheel k<1> and the shaft e to which it is geared. The gearing may be a worm gear as shown or may comprise a pulley on the shaft e to which the cables i and j are connected. In a modification the pinion which surrounds and is fixed to the shaft e carries a cross-member at each end; the other pinions are pivoted to this cross-member and have radius arms of different lengths which are connected by links to lugs fixed to the frame c, so that, as the shaft c rotates, the angle between the pinions is altered. In a further modification, the angle of incidence of the pinions is altered as they are projected by sliding them through guides near the tips of the wings, the guides being inclined to one another. The pinions may be curved along their longitudinal axes, the guides then being not necessarily inclined to one another; or the angles of incidence may vary along the lengths of the pinions.
Patent GB-1216981-A (GB)
Title: Improvements in or relating to sensing circuit arrangements
Inventor: HARDIE NIEL STEWART
IPC: G05B1/02
Filed: 1967-04-21
Abstract: 1,216,981. Automatic control of speed. PLESSEY CO. Ltd. March 6, 1968 [April 21, 1967], No. 18449/67. Heading G3R. [Also in Division H4]. In a circuit for producing a pulsed output signal whose mark/ space ratio is dependent upon either the frequency or the magnitude of an input signal, the output pulses are produced by amplification of the duration of pulses produced at an intermediate stage. The intermediate stage comprises a differential amplifier 14 which is switched fully on when the magnitude of a sawtooth waveform applied to one input 13 exceeds a D. C. signal applied to a second input 16. The resulting output pulses from 14 turn on a transistor 25 which partially discharges a capacitor 34 as shown in the downward sloping portions of Fig.9, the amount of discharge depending upon the pulse length from 14. A transistor 31 is switched off by this discharge, and remains off until the capacitor, recharged through resistor 33, recovers its initial voltage. Thus the output at 37 comprises pulses whose length depends upon, but is greater than, the length of pulses from 14. As shown, the sawtooth waveform is produced on capacitor 11 which charges at a steady rate through resistor 12 and is fully discharged by a transistor 1 once per cycle of an A. C. input signal from an alternator at 3. Thus the magnitude of the peak of the sawtooth varies with frequency, and since the D. C. applied to input 16 is constant, so also does the pulse length from 14. In this case the output is used to energize a brake winding on the alternator and so control its speed to keep the frequency constant. In an alternative embodiment, Fig. 2 (not shown) the sawtooth waveform is constant and the D. C. signal at 16 comprises the input to the circuit, being the rectified and smoothed voltage of an alternator. Thus, the pulse length depends upon this voltage, and the output is used to adjust the field of the alternator to keep the voltage constant. Diodes 20, 21 protect the differential amplifier from excessive voltage differences and Zener diode 27 ensures adequate voltage to turn off 25 at the end of each pulse.
Patent GB-1128381-A (GB)
Title: Elastic wave generators
IPC: G10K11/18
Filed: 1966-04-27
Abstract: 1,128,381. Acoustic degassing and defoaming apparatus. TEKNIKA Inc. 27 April, 1966 [16 June, 1965], No. 18557/66. Heading B1M. [Also in Division G5] In an elastic wave generator in which the waves are generated by impingement of a fluid against a vibrator (15) and the fluid subsequently flows between a housing (30) and the vibrator mounting &c. (22, 23), said housing is provided with an inturned lip (35) whereby the fluid exhaust is directed by said lip across the axis of the device to prevent liquid (40) being degassed or defoamed being drawn into the generator. The numerals refer to Fig. 2 in which means 38, 39 are provided to supply a driving gas to the generator together with a diluent fluid for the material being degassed, to wash off any material depositing within the device. The vibrator 15 is mounted in a resonant chamber 13 which is surrounded by a hemispherical body 23. Cylindrical body 21 supports these parts and is in turn supported by posts 22 on cylindrical body 18.
Patent GB-194612-A (GB)
Title: Improvements in adjustable drawing squares
IPC: B43L7/12
Filed: 1922-07-07
Abstract: 194,612. Dargue, A. W. July 7, 1922. Squares.-In an adjustable setsquare comprising a base member a to which a movable member a<1> is pivoted, stiffness is imparted to the base by making it of triangular shape with the upper edges inclined to the lower edge at angles of not less than about 22¢‹. To facilitate adjustment and measurement of the angle given by the square, the member a is provided with a graduated arc c overlying an arc d secured to the member a', the arc d being provided with an index e and a clamping-nut g. The are c may carry a spring-plunger adapted to engage in one of a series of holes in the arc d to facilitate quick adjustment through known angles. The pivot-joint comprises a rivet i, Fig. 2, the head i<1> of which engages in recesses in the members a, a', is surmounted, by a keeper ring k which is held in position by the expanded upper edge of the rivet. The arc d may be replaced by a member in the form of an arm with laterally extending wings or by a segmental plate secured to the member a<1>.
Patent GB-376938-A (GB)
Title: Improvements in or relating to fluid operated feeding-means for rock-drills and other tools
IPC: E21B19/086
Filed: 1931-06-27
Abstract: 376,938. Percussive drills. HOLMAN, P. M., HOLMAN, K. J., of Holman Bros., and COCK, B., Woodbine, both in Camborne, Cornwall. June 27, 1931, No. 18644. [Class 124.] The percussive drill 10 is mounted to slide on guides mounted on the feed cylinder 13. The valve 11 controls the air supply to the percussive cylinder and to the conduits 35, 36 which in turn connect with the tubes 22, 23 which attach the drill to the feed piston rod 18. Air from the tube 22 enters the conduit 31, the hollow piston rod 18 and hole 19 to feed the tool forward, withdrawal being effected by air from tube 23 and conduits 32, 33, 21 entering the feed cylinder, air to the percussive cylinder being shut off meanwhile.
Patent GB-252309-A (GB)
Title: Improvements in or relating to receiving apparatus for radio-telegraphy and telephony
IPC: H04B1/16
Filed: 1925-07-23
Abstract: 252,309. Compagnie pour la Fabrication des Compteurs et MatÚriel d'Usines Ó Gaz. May 22, 1925, [Convention date]. Vacuum or low-pressure apparatus, arrangements of; converting pulsating currents into steady continuous currents.-In order to energize a valve receiving set from domestic supply mains, an adaptor fitting a1 - - a3 is inserted in each valve-holder for the purpose (a) of changing the filament wiring from parallel to series, (b) to isolate each grid by means of a suitable blocking condenser c1 - - c3, Fig. 2, (c) to impose a suitable grid bias by means of graduated leak resistances rl - - r4 or more complex impedances, and (d) to connect the negative high-tension terminal to a suitable point k on the mains. Alternating current from the mains is rectified by valves v1, v2 and fed through smoothing units l1 l2, l3, c4, c5, c6 to the terminals 80v for the plate circuit, and through a resistance p to the filament terminals CH, which are shunted by a safety resistance d.
Patent GB-440351-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D11/10
Filed: 1934-06-26
Abstract: 440,351. Claw clutches. HOLBROOK, R. E., 44, Martin Street, Stratford, London. June 26, 1934, No. 18902. [Class 80 (ii)] In a claw clutch comprising diametricallyopposed dogs 19, 20 on one member 5 engageable with corresponding recesses in the other member 7, the dogs being of different arcuate lengths, so that the members 5, 7 can engage only in one relative position, a ring 22 mounted for limited angular movement on the member 7 is provided with a projection 23 which, on movement of the member 7 towards the member 5, engages one or the other side of the dog 20 and moves to the appropriate end of its angular travel so as to bring the dogs into register with the recesses. The other dog 19 is cut away as shown so as to be incapable of engaging the projection 23. The ring 22 is mounted between the end of the member 7 and the flanged end of a sleeve 17 secured to the member 7. A double clutch, applied to the drive of the lead screw of a screw-cutting lathe, is shown. Specification 407,391 is referred to.