baber/WOPTO huggingface dataset:
Patent GB-165776-A (GB)
Title: Improvements in gun carriages
IPC: F41A23/50
Filed: 1921-04-22
Abstract: 165,776. Compagnie des Forges et AciÚries de la Marine et d'HomÚcourt. June 30, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Field carriages; recoil apparatus.-Consists in providing (1) a pivoted supplementary spade for soft ground which can be locked in either the operative or the housed position, (2) special means for actuating the wheel brakes, (3) a special graduated drum for elevating the gun beyond the limits obtainable by moving the cradle, and (4) a shield moving with the gun over an aperture in a fixed shield and slidable shutters to cover the openings exposed on each side of the aperture during training. The supplementary trail-spade 5, Fig. 2, is pivoted at 4 to a transverse partition at the rear end of the trail and is either housed as shown beneath a rearwardly projecting portion x of the partition or it may be rotated to bear against and form an extension of the main spade 3. The spade 5 is locked in each position by the heel 8 of a transversely rocking lever 9 which is wedged against the front or the rear of a projection 6 on the spade. The wheel brakes are actuated by rotating a shaft 10, Fig. 6, either from the rear end of the trail by a cable 14, lever 13, and arm 11, or from a position near the wheel axle by a double-handed lever 16, 17 connected to an arm 12. The handle 16 is operated from the gunner's seat during firing, and the handle 17 is for use when travelling. The elevating drum 21, Fig. 10, has several scales both on its cylindrical surface and on its flat end and is frictionally geared to a graduated disc 25 carrying a pinion 22 moving over a toothed arc 23 on the gun cradle. The fixed shield 28, Fig. 13, is secured to the wheel axle 30 by members 29 and has a large aperture 31 over which a shield 32 carried by the gun moves during training. Sliding shutters 35 are movable by projections on the shield 32 or by handles 41 to cover the exposed parts of the opening 31.
Patent GB-1423315-A (GB)
Title: Dredging plant
IPC: E02F3/90
Filed: 1973-03-12
Abstract: 1423315 Section dredger G FALDI 12 March 1973 [17 March 19721 11703/73 Heading E1F Dredging plant includes a pump-shovel assembly 14 suspended from a watercraft 10 arranged for anchoring to two fixed points 16, the assembly comprising two shovels 22 facing in opposite directions, with valve means (30), (32) or (33), Figs. 4, 5, 6 respectively (not shown), provided to place one or the other of the shovels in communication with the pump, which includes one or more pumping chambers 24, the inclination of the shovels being controlled by cables 21 which intersects the centre line of the craft 10 outside the craft. There is a cable 21 connected to a winch 20 at each end of the craft so that dredging can be carried out in either direction. The cable 21 may pass around a pulley 18 connected to the craft by a cable 118 and also to a cable 17 which passes around a pulley at an anchoring point 16 and is used to drag the watercraft; or the cable 21 may pass around pulleys 54 on a rigid vertical boom 53 at an end of the craft. Either method may be used at both ends of the craft, Figs. 1, 3 (not shown).
Patent GB-542248-A (GB)
Title: Improved speed control system for a multi-engine power plant for the electric propulsion of moving craft
IPC: H02P9/04
Filed: 1940-07-15
Abstract: 542,248. Transmitting mechanical power ; automatic control systems for prime movers; governors. BRITISH THOMSON-HOUSTON CO., Ltd., JEWITT, D. E., and CALDERWOOD, J. July 15, 1940, No. 11707. Drawings to Specification. [Class 38 (iv)] [Also in Group XXVI] Speed control.-A number of A.C. generators supplying current to one or more motors driving a moving craft are jointly controlled in speed by an auxiliary A.C. generator and the speed of the auxiliary machine is made dependent on load variations to produce a drooping load-speed characteristic of the plant. The fuel admission valve of each of the prime movers is adjusted by a differential A.C. dynamo-electric machine one element being energized by the output of its generator or of a generator driven by the same prime mover and the other element being energized from the auxiliary A.C. generator, which is preferably driven by a D.C. motor with adjustable excitation. A further differential A.C. dynamo-electric machine energized from the output of the main generators and from the auxiliary A.C. generator adjusts a field rheostat of the D.C. motor to cause its speed to fall off when the loading produces a fall in frequency in the main generators. Excessive speed of each generator is prevented by a centrifugal governor operating through a lost motion on linkage connecting its differential machine with the admission valve to cause it to close. Each valve is adjustably coupled to its differential machine to determine individual loading of the main generators.
Patent GB-624145-A (GB)
Title: Improvements in or relating to cathode ray oscillograph apparatus
IPC: H01J29/94
Filed: 1947-05-01
Abstract: 624,145. Automatic current control systems. GENERAL ELECTRIC CO., Ltd., and CHIL. TON, J. M. May 1, 1947, No. 11735. [Class 38 (iv)] The beam current in a continuously evacuated cathode-ray tube is held constant by controlling the gas content of the tube, the gas being emitted by calcium carbonate which is electrically heated, the heating depending upon the magnitude of the beam current. The E.H.T. for the tube 1 is provided by rectifiers supplied by a transformer 4 which is supplied through a current transformer 19. The output of the current transformer is rectified at 23 to provide across condenser 24 a voltage proportional to the beam current plus the no load current in transformer 4. The no load component is subtracted by rectifying at 25 the input voltage to transformer 4 and applying it across resistances 27, 28, 29 in series, whilst the voltage across condenser 24 is connected in opposition to the slider 30 of resistance 27. The resultant voltage is applied to the grid of a gas-filled triode 33. When the beam current falls, this voltage is reduced, and the valve conducts, thereby energizing the coil of a relay 39, which coil is in series with the anode supply from transformer 34. The anode circuit includes a thermal delay switch 36 energized from the valve heater supply. Closing the relay energizes transformer 45, which is supplying the heater element 2, and also short-circuits resistors 28, 29, thereby cutting off valve 33 by driving the grid further negative and releasing relay 39 which continues to vibrate to pass sufficient current to the heater element 2 to release just enough gas into the tube 1 to keep the beam current substantially constant at a value determined by the setting of resistors 27, 29.
Patent GB-1188331-A (GB)
Title: Improved Surgical Drainage Device
Inventor: BIDWELL ROBERT ERNEST
IPC: A61M1/00
Filed: 1967-03-14
Abstract: 1,188,331. Surgical drainage apparatus. R. E. BIDWELL, S. MISHKIN and E. J. HALLSTEIN. 14 March, 1967 [17 March, 1966], No. 11823/67. Heading A5R. Apparatus for draining fluid from a cavity comprises a one-piece chamber unit providing a chamber 28 to receive and trap liquid collected through an inlet port 32, a chamber 20, 26 to hold a liquid seal 20A, 26A which separates the trap chamber from an outlet port 22, and a manometer chamber 16, 18 with one limb connected to the outlet side of the seal chamber and the other limb open to  atmospheric pressure, whereby liquid from the cavity may be collected in the trap chamber and gases from the cavity may be caused to pass through the trap chamber and the liquid in the seal chamber to the outlet port. As shown, the receptacle of transparent plastics material is connected to the pleural cavity by tubes 34, 36 and is arranged on a base 14 in which is a suction pump 72 able to apply negative pressure to the cavity via tubes 64, 24, the seal passage 20, 26, and the liquid collecting chamber 28. The apparatus also includes a motor 70, a pressure control 74, (60), a moisture trap 76, a lighting element 80, graduations on the manometer and chamber 28, and a grommet (46) by which liquid may be sampled from the chamber 28. The receptable has a handle 44 and may be disposable, and the apparatus may be used to drain fluids without using the liquid seal and the suction pump.
Patent GB-642121-A (GB)
Title: Improvements in straight-bar knitting machines
IPC: D04B11/00
Filed: 1947-05-02
Abstract: 642,121. Knitting-machines. SOC. ITALIANA ERNESTO BREDA PER COSTRUZIONI MECCANICHE. May 2, 1947, No. 11846. Convention date, Feb. 16, 1946. [Class 74 (ii)] A draw mechanism for a straight-bar machine comprises an endless chain 10 engaging sprockets 4 ... 9 and provided with a pin 11 which engages a fork 12 on a bar 13 driving the thread carriers. The sprockets 4, 7 and 5, 6 are mounted on adjustable slides 17 and 18 to enable the traverse of the bar 13 to be varied, the position of the sprockets 4, 5 determining the point of withdrawal of the pin 11 from the fork 12 as the chain passes round these sprockets. The drive for the chain is transmitted through bevel gears 2, 3 mounted on the slide 17 and driving the sprocket 4, the bevel gear 2 being mounted on a helicoidalsplined shaft 1 from which it is driven and along which it slides when the slide 17 is adjusted to vary the traverse of the bar 13.
Patent GB-294973-A (GB)
Title: Improvements relating to musical instruments of the reed type
IPC: G10D9/04
Filed: 1927-05-03
Abstract: 294,973. Packman, P. J. May 3, 1927. Saxophones.-An octave key of a saxophone or other reed instrument is arranged to be operable by the thumb of the right hand, with an alternative operation by the left thumb, thus enabling the keys of D, E# (in an E# alto saxophone) to be operated by L thumb, E# by L1, and F by L1 or 2. As shown :n Fig. 1, the usual L thumb key g for the lower octave hole a is removed and the arm g' is operated by an arm l<1> by R thumb on key l<5> near the thumb-rest n. An auxiliary key l<6> for L thumb is secured on the same spindle l<4> near the thumb-rest h. The space thus made available may be occupied by keys e<1>, d<1> of pads e, d, of D, E#, operable by L thumb, the usual keys k, j, being removed. L1 and L2 may then be employed for keys c<1>, b' on pads c, b of E, F, the usual key i of pad b being removed. In a modification (Fig. 2, not shown), the octave-pad a, besides being normally held closed by an arm similar to g<1>, is also held closed by another arm controlled by a key for L3. This key when raised allows the ring f of the upper octave pad to be operated by the keys l<5>, l<6>, the pad a remaining closed, but when depressed prevents operation of the upper octave pad by the keys l<5>, l<6>, the pad a then opening. In this form also intermediate levers are arranged between the keys d<1>, e<1> and the pads d, e; and the key e' carries a lug under the key d<1> so as to be depressed therewith. In another modification (Fig. 3, not shown), the keys l<5>, l<6> are carried by an extension of the spindle g<2>, and the key c<1> for L1 is transferred to a duplicate hole for E. In another modification (Fig. 4, not shown), the spindle carrying the keys l<5>, l<6> is replaced by a series of collinear levers on transverse pivots. In applying the construction shown in Fig. 1 to existing instruments, the spindle g<2> may be set at an angle; and the keys j, k may be retained, the keys d', e<1> being additional and acting under lugs on the pads d, e. The thumb-bracket m for the right hand may be movable on a pivot, or on a ball and socket m<3> with a bearing-roller m<6>.
Patent GB-330064-A (GB)
Title: An improved prop for use in mines and the like
IPC: E21D15/52
Filed: 1929-04-17
Abstract: 330,064. Ritchie, A. M. April 17, 1929. Mine props are formed with a tubular main portion a having a wood filling f and a sleeve b secured to its upper end adapted to receive a sliding metal socket c adjustable by means of a cross-wedge d passing through opposed apertures in the sleeve. The lower end of the socket portion and upper end of the main prop portion may be provided with abutment plates i, g, respectively, or the ends of these portions may be closed by diaphragms to form abutment surfaces for the wedge.
Patent GB-288835-A (GB)
Title: Improvements in or relating to rollers and roller coverings as used in connection with textile machinery
IPC: D01H5/74
Filed: 1927-05-04
Abstract: 288,835. Marshall, T. P. D. May 4, 1927. Rollers for drawing, roving, spinning, and like textile machines of the kind built up in three parts comprising a disc of fibre, leather or the like and two metal or like plates, which support the rim of the disc by means of lateral peripheral flanges, one of of the end plates 2 is formed with a plain central opening which is a sliding fit on a central hub or boss 5 on the other and screws 7 are fitted in aligned holes in the plates and in the web of the disc 1 for clamping purposes.
Patent GB-591566-A (GB)
Title: Improvements in and relating to building bricks
IPC: E04B2/02
Filed: 1945-05-12
Abstract: 591,566. Building-bricks. HARMS, A. May 12, 1945, No. 11956. [Class 87 (i)] [Also in Group XV] A building - brick has a bevelled upper edge 2 of any desired depth and angle, extending all round the upper face, and is laid so that its lower edge 3, which is substantially square but may be rounded off, overhangs the bevelled edge of the brick in the course below and thus forms a lip to act as a drip line. A frog may be formed in the upper or lower face or in both. A drip groove may be moulded around the lower face of the brick near its periphery or alternatively the lower edge 3 may be slightly inclined upwards towards the frog. To enable bricks to be divided into fractions, slots A, B, C with splayed edges are provided in the top or bottom face at varying distances from the ends.
Patent GB-451874-A (GB)
Title: Improvements relating to machines for use in the fluid-pressure testing of tubes and other hollow bodies
IPC: G01M3/28
Filed: 1935-04-18
Abstract: 451,874. Testing strength of pipes. STIRRAT, A. Y., Rushton Manor, Rushton, near Kettering, and STEWARTS & LLOYDS, Ltd., 41, Oswald Street, Glasgow. April 18, 1935, No. 11957. [Class 106 (ii)] Comprises a construction of headstock for a testing machine in which a hollow cylindrical body sliding over a fixed hollow cylindrical body and provided with a jointing surface for engagement with the tube under test, is moved by separate fluid pressure means into and out of engagement with the tube to be tested. At one end of a long bed a is arranged a tailstock adjustable longitudinally of the bed by a screw and provided with a closure for one end of the pipe. At the other end of the bed is the fixed headstock g, Fig. 3, in which is supported a hollow cylindrical body i secured to a slidable carrier u. The part i is arranged to slide over a fixed plunger h between which and the part i is a gland k. The outer end of the body i forms an abutment m having a leather or like washer n which is pressed against the end of the pipe. The pressure fluid is introduced through the plunger h. An air release valve is provided in either head to release entrapped air when liquid is the fluid used. The part i is moved towards the pipe by pressure fluid being introduced into the cylinder q to move a plunger o and is returned by pressure fluid introduced into the cylinder s and acting on a plunger p. The joint may be made solely by fluid pressure by making the body i sufficiently larger in diameter than the tube under test, or it may be supplemented or provided by the pressure on the plunger o. The parts h, i may be replaced by like parts of different diameter. A head such as g may be used at each end and the parts o, q, p, s may be reversed, that is cylinders may work over pistons.
Patent GB-881982-A (GB)
Title: Tire mold and method of manufacturing such mold
IPC: B29C33/02
Filed: 1960-04-05
Abstract: 881,982. Tyre moulds. FIRESTONE TIRE & RUBBER CO. April 5, 1960 [Aug. 13, 1959], No. 11976/60. Class 87(2). [Also in Group XXII] A three-piece mould for a tyre comprises an upper end section 21 and a lower end section 19 having surfaces to mould the beads, sidewalls and shoulders of the tyre and an intermediate section 20 having surfaces to mould the entire axial width of the tread. The tread-moulding section 20 incorporates a thin-walled tread ring 22 which is cast in one piece, forced into true circular form by a expanding chuck and then accurately machined on its outer surface 28, a relatively massive backing ring 23, having an accurately machined bore, being heated and shrunk on to the tread ring. When assembling the mould, the intermediate section 20 may be bolted to either the upper or lower end sections, depending on the type of vulcanizing pressured, a pair of mating, registering surfaces 40, 41 being incorporated so that the sections of the mould are accurately aligned when the mould closes.
Patent GB-685822-A (GB)
Title: An improved filtering agent for tobacco smoke
IPC: A24D3/16
Filed: 1951-05-22
Abstract: To convert the carbon monoxide in tobacco smoke to carbon dioxide, it is passed over metal oxides, including manganese dioxide and cupric oxide, kept dry by admixture with, e.g. three times the quantity of, slaked lime.  A preferred oxide mixture is:-60 per cent manganese dioxide, 38 per cent cupric oxide, 2 per cent ferric oxide and traces of silver oxide and cobalt oxide. Used in conjunction with tar and nicotine absorbents such as cotton, active charcoal and silica gel in a tubular filter unit as for insertion in a cigarette holder, the oxides are placed at the end of the unit nearest the smoker's mouth.
Patent GB-433231-A (GB)
Title: Improvements in and relating to pressure equalising valves
IPC: G05D16/18
Filed: 1934-04-20
Abstract: 433,231. Fluid - actuated valves. LAWSON, C. W., 80, Shrewsbury Lane, Woolwich, London, and BRYCE, Ltd., Kelvin Works, Hackbridge, Surrey. April 20, 1934, No. 11998. [Class 135] A liquid - fuel valve for ensuring that fuel is not supplied until the correct pressure has been attained by the pump 8 and also for relieving the pressure due to pressure waves along the pipe line 11 comprises a slidable plunger 17 loaded at opposite ends by springs 22, 23, the movement of which is limited by collars 20, 21 abutting shoulders 31, 30 on the plunger in its intermediate position and the ends of the plunger guide 15 in the valve casing 5, 1 when the plunger moves in either direction from its intermediate position. Grooves or passageways 26, 27, 28 in the plunger or its guide 15, or in both allow the passage of fuel. The lateral grooves 28 and the T-passage 26, 27 may be reversed, or two sets of lateral grooves, or two T-passages are provided in modifications. Alternatively grooves extending from opposite ends of the valve guide 15 replace the grooves or passages in the plunger. The notched stem 19 limits the upward movement of the plunger. In another modification, the plunger has a small free axial movement with respect to the collars 20, 21 in the intermediate position. According to the Provisional Specification, the valve may be used on the suction side of the pump.
Patent GB-1288012-A (GB)
IPC: B60K26/02
Filed: 1971-04-29
Abstract: 1288012 Accelerator linkage FORD MOTOR CO Ltd 29 April 1971 [2 June 1970] 12029/71 Heading F1B Engine accelerator linkage assembly comprises a pedal 14 which actuates a bell crank 20, the upper end of which is pivotally connected at 30 to one end of a flexible cable 32, the other end of the cable being connected to a throttle lever 38. The cable slides in a sheath 41, the opposite ends of which abut brackets 44 and 52. The end of the cable which is attached to the throttle lever terminates in a metal adapter which fits over a ball stud 56 projecting from the lever. The adapter is secured in the end of a sleeve 58 which telescopes over a tube 62, one end of which abuts the bracket 44. Surrounding the tube 62, is a compression spring which is received in a socket 60 formed at the end of the sleeve and which also abuts the bracket 44. In operation, tension in the cable compresses the spring, and should the spring break, there is still sufficient force to move the throttle to the closed position.
Patent GB-506455-A (GB)
Title: Improvements in or relating to air doors for mine roads and like passageways
IPC: E21F1/10
Filed: 1938-04-22
Abstract: 506,455. Air-locks. INTERNATIONAL COMBUSTION, Ltd., DAVIDSON, G. W., and HERBERT, S. L. April 22, 1938, . No. 12084. [Class 68 (ii)] . An air-lock in mine roads and other passageways comprises an endless band or chain 4 disposed in the upper part of the passageway and driven by drums or sprockets 3, doors 5 being carried by the chain &c. so that at least two doors cooperate to close the passageway against the free passage of air. A conveyer driven synchronously with the chain 4 carries arms 10, by which trams &c. 9 may be hauled through without fouling the doors.
Patent GB-219943-A (GB)
IPC: C21B9/06
Filed: 1924-05-16
Abstract: 219,943. Pfõlzische Chamotte-und Thonwerke (Schiffer und Kircher) Akt.-Ges., (Assignees of Strack, 0.). Aug. 2, 1923, [Convention date]. Bricks, special shapes of. -A brick for hot-blast stoves &c. is provided with a plurality of passages a for the hot gases and the blast, a portion d' of one end being cut away in order to provide a lateral interconnection of such passages. The block is of polygonal form in cross section, and the passages are uniformly distributed over the cross sectional area. A projection is provided at one end of the brick and a corresponding rscess at the other end. Parts b are cut away at the corners or at the middle of the sides.
Patent GB-665173-A (GB)
Title: Improvements in or relating to fire-guards
IPC: A47G5/04
Filed: 1949-05-07
Abstract: 665,173. Fire guards. BAKER, Ltd., G., and BAKER, C. F. Jan. 19, 1950 [May 7, 1949], No. 12231/49. Class 126. An open wire mesh fireguard has a layer of finer wire mesh for the arrest of sparks extending upwardly to a height equal to half the height of the guard. A fireguard comprises two trapezoidal panels a, b hinged together and a triangular panel d hinged to one trapezoidal panel a and having a clip f for engagement with the other trapezoidal panel b. Wire gauze of finer mesh is attached by welding, binding &c. to the lower part of each trapezoidal panel to arrest sparks and pieces of fuel which may be shot out of the fire.