baber/WOPTO huggingface dataset:
Patent GB-935517-A (GB)
Title: Flat valve for hydraulic motor
IPC: F03C1/34
Filed: 1961-03-29
Abstract: 935,517. Liquid pressure motors. OILGEAR CO. March 29, 1961 [May 5, 1960], No. 11430/61. Class 69 (2). In a revolving cylinder liquid pressure motor having a valve seat arranged upon the cylinder barrel, a flat valve engaging the seat, which valve is provided with high and low pressure ports, hold-up motors under the valve ports for holding the valve on the valve seat and auxiliary hold-up motors under bridges between the valve ports, the bridges have recesses connecting with passages to the auxiliary hold-up motors so that the cylinder ports and the recesses cooperate simultaneously to connect the auxiliary hold-up motors alternately with the high and low pressure valve ports. The motor has an odd number N of cylinders, such that N+1 / 2 is   an even number, and they may be axially or radially arranged. Hold-up motors 42, 43 comprise spring-loaded hollow pistons, through which pressure liquid flows, and are always connected to their respective ports. They provide a force equal and opposite to the separating force between the valve and valve seat when N - 1 /2 cylinder ports register with the supply port of the valve. The auxiliary holdup motors provide the additional force required   when N+1 / 2 cylinder ports register therewith. The valve ports 31, 32 have extensions 31a, 31b and 32a, 32b, respectively, whose adjacent ends are spaced apart by a distance slightly greater than the diameter of a cylinder port. Timing slots 53, 54 are connected to the auxiliary hold-up motors by drilled passages and are of such length that only one cylinder port at a time can register therewith. In Fig. 2, a slight clockwise rotation of the cylinder block will connect timing slot 53 with extension 31a via cylinder port 29a and slot 54 with extension 31b via cylinder port 29d thereby energizing the auxiliary hold-up motors at the pressure in the port 31. Further rotation will connect the timing slots with the extensions 32a, 32b of the discharge port, thereby de-energizing the motors.
Patent GB-1116183-A (GB)
Title: A method and apparatus for indicating the presence of water in a fuel system
Inventor: ONION GEORGE
IPC: G01N31/22
Filed: 1965-03-18
Abstract: 1,116,183. Water detection. C.A.V. Ltd. Jan. 26,1966 [March 18,1965], No. 11477/65. Heading G1S. Apparatus for indicating the presence of water in a fuel system of an internal combustion engine having a transparent bowl 10 comprises a pellet 16 including a water soluble dye, which is substantially insoluble in the liquid fuel, the arrangement being such that any water entrained with the fuel will be tinted by the dye and thereby rendered visible from the exterior of the bowl. The pellet 16 may be placed either in the bowl 10 or in the fuel system upstream of the bowl. The pellet is formed by the dye and anacrylic moulding- powder.
Patent GB-200610-A (GB)
Title: Improvements in and relating to coupling devices for pipes, taps, or the like
IPC: F16L37/02
Filed: 1922-04-25
Abstract: 200,610. Hyne, C. J. C. W. April 25, 1922. Couplings, disconnectible.-A tubular connection T for coupling a hose &c. connected to it at one end to a tap, or for the like purpose, carries at one extremity a washer R of resilient material which is compressed against a washer-nut W and expanded to grip the interior surface of the tap by the rotation of a sleeve A mounted on the connection T. Longitudinal movement only is given to a sleeve S, Fig. 2, by the rotation of the sleeve A, the lower bevelled end of which coacts with the upper bevelled end of a collar or sleeve C bearing against a flange or ring on the connection T and prevented from turning. The sleeve S may be flanged at its upper end and may be locked to the sleeve A, when the washer R is expanded, by the engagement of a spring-finger on the sleeve A in one of a series of indents in the sleeve S. In a modified form shown in Fig. 3, the sleeve A rests on a ring secured to the connection T, its upper bevelled end coacting with the lower bevelled end of the non-rotatable sleeve S. By providing flexible washers R, R<1> at both ends of the connection T, and making the sleeve S, in two parts B, C as shown in Fig. 1, it may be used for coupling together two hose, lengths. The washer R may alternatively be expanded by the rotation of an internally screwed sleeve, coacting with a coarse thread on the connection T. By providing right- and left-handed threads inside this sleeve, both parts B, C of the sleeve S may be moved simultaneously to form a double connection piece of the kind shown in Fig. 1. The washers R, R<1> may be changed by unscrewing the washer-nuts W to adapt the connection to various sizes of hose &c., and they may be expanded into recesses in the hose or tap, suitable distance pieces being provided to ensure correct fitting of washers and recesses.
Patent GB-194584-A (GB)
Title: Improvements relating to incubators
IPC: A01K41/02
Filed: 1922-04-25
Abstract: 194,584. West, T. H. April 25, 1922. Dampers. - In an incubator the carrier c for the capsule a of the thermostat is arranged as a cantilever attached to the side. The operating- rod j bearing on the capsule engages a lever f pivoted on a flange d by which the tube c is secured to the side. The lever f is bent as shown and carries a damper h and an adjustable weight g.
Patent GB-822241-A (GB)
Title: Improvements in or relating to the manufacture of link parts for welded link chains
IPC: B21L11/14
Filed: 1957-04-10
Abstract: 822,241. Making chains; forging. TAYLOR & SONS (BRIERLEY HILL) Ltd., S., SMITH, D. A., and SHIRT, J. March 26, 1958 [April 10, 1957], No. 11644/57. Classes 83 (2) and 83 (4). In the manufacture of link parts for weldedlink chains of which each part consists of a U-shaped member 10 and integral stud portions 11, the part is made from a length of heated bar bent into U-shape and inserted in a split die 15, having a U-shaped cavity and a cross-cavity, within which the workpiece is upset by a pair of plungers 17 of a punch 18 acting on the limbs of the workpiece, thereby to fill the cavity and form the stud portions 11. The latter is of a D-section with the straight side outwards. Two link parts are subsequently resistance or flash welded together across the straight sides of the studs to form a chain link, Fig. 1 (not shown).
Patent GB-616826-A (GB)
Title: Improvements in or relating to electrical voltage regulators
IPC: G05F3/06
Filed: 1946-04-16
Abstract: 616,826. Automatic regulation; transformers. BUILDER, G. April 16, 1946, No. 11701. Convention date, April 17, 1945. [Classes 38 (ii) and 38 (iv)] In a voltage regulator comprising an unsaturated transformer and a saturated transformer associated with a capacity or filter, the two primary windings being in series, shelltype transformer cores are employed having part of the core common to both transformers. This provides a more compact arrangement than the use of separate transformers. A core of the shape shown in Fig. 2 may have one pair of windings in the windows 26 and the other pair in windows 16, the yoke 23 of the two cores being common and'providing two transformers 27, 17. Such a core may be made from laminations of the shape shown in Fig. 2a, the laminations being cut along the line 20 and the strip from the window 29 being used to form the common yoke section. If an air-gap is required in the magnetic circuit of transformer 17, Fig. 2, it may conveniently be located between the ends of the limbs and the common yoke. In a regulator in which an inductance is connected in the secondary circuit of the saturated transformer, the core of the inductance may be similarly incorporated in the assembly, see Fig. 3 (not shown). A suitable lamination for use in this arrangement is described with reference to Fig. 3a (not shown).
Patent GB-1055532-A (GB)
Title: Improvements in and relating to processes for the production of glacial acrylic acid
IPC: C07C57/07
Filed: 1964-03-19
Abstract: Acrylic acid (at least 99%) is prepared from a dilute aqueous solution by distillation under vacuum in the presence of an inert stripper which forms with the water vapour a mixture of constant composition which separates on condensation into two layers. Benzene, toluene, esters of acrylic and methacrylic acids, acrylonitrile, monochlorobenzene, carbon tetrachloride and orthodichlorobenzene are suitable. The process may be continuous or discontinuous and a suitable apparatus is described.
Patent GB-1202624-A (GB)
Title: Improvements in and relating to centrifugal pumps
Inventor: MURRAY WILLIAM
IPC: F04D29/12
Filed: 1968-03-11
Abstract: 1,202,624. Centrifugal pumps. FILTON Ltd. March 11, 1968, No. 11799/68. Heading F1C. A centrifugal pump comprises an impeller disc 11 carrying on one side, main working blades 10, and on the opposite side, narrower blades 12 arranged in a side chamber 14, and a passage 13 in an end-wall 2 communicates at its outer end with the side chamber 14 and at its inner end with a chamber 16 around a rotary contact shaft seal 15 so that fluid displaced by the impeller can be circulated in the direction of the arrows and cool or lubricate the seal. Arcuate discharge diffusers 6a are formed by arcuate vanes 4, 5, 6 which together form the peripheral wall of the impeller chamber. Each of these vanes entends over nearly 180 degrees and each diffuser extends over 45 degrees or more. The diffusers may discharge into a surrounding chamber having a common outlet. (For Figure see next page)
Patent GB-1095991-A (GB)
Title: Improvements in or relating to an apparatus for the cooling and liquefaction of gases
Inventor: PARKINSON DAVID HARDRESS
IPC: F25B9/02
Filed: 1955-04-23
Abstract: 1095991 Liquefying gases; tubular heat exchange elements MINISTER OF TECHNOLOGY 21 March 1956 [23 April 1955]  11800/55 Headings F4H and HG13 A heat exchanger comprises a tube having fins helically wound on it and itself wound about a cylindrical mounting of low thermal capacity, a pressure head for feeding one end of the tube, an expansion nozzle terminating the other end of the tube, and resilient worming wound with the tube to define in conjunction with the internal wall of a cylindrical container into which the heat exchanger is inserted in operation, a passage through the tube fins and extending concentrically with the axis of the cylindrical mounting for gas expanded by the expansion nozzle. In the Figure the heat exchanger coil 1 is wound on a cylinder 2 and wormed with cotton packing threads 3; the coil is secured between end caps 4, 5 and is provided with an expansion nozzle 7 at one end. A continuous spiral of copper is wound round the coil to provide cooling fins. The space 6 between the end caps is filled with a material of low thermal capacity to reduce convection. In use, the coil is inserted into a cooling space 11 in a double-walled Dewar flask, and fits snugly by virtue of the cotton threads 3, which cushion the coil against the glass sides of the flask; a resilient thermally conductive tubular sheath may be fitted over the outside of the coil 1 and the packing threads 3 to facilitate its insertion into the flask. High-pressure air from an air bottle enters the top end of the coil and after passing through the coil expands through the nozzle 7 and passes back round the outside of the coil and exhausts to the atmosphere. In an example 120 c.c. of air pass through the coil each second, and liquid air forms in the space 11 after about 24 seconds; the liquid air is absorbed by cotton wool 17, so that it is possible to use the apparatus in any altitude. The cooling may be controlled by adding 0À5% of carbon dioxide to the air so that the fins of the coil become blocked by solid carbon dioxide some time after liquefaction begins; the flow of air then ceases until the apparatus warms sufficiently to melt the carbon dioxide, whereupon the cycle re-commences.
Patent GB-886434-A (GB)
Title: Improvements in oscillator synchronisation circuits
Inventor: ROUT ERIC RAYMOND
IPC: H04N5/12
Filed: 1959-04-08
Abstract: 886,434. Valve pulse generating circuits; retroactive frequency control systems. BRITISH BROADCASTING CORPORATION. March 15, 1960 [April 8, 1959], No. 11896/59. Classes 40(5) and 40(6). A free-running oscillator, e.g. a blocking oscillator 9-13, Fig. 2, is synchronized by supplying it with a control voltage from a frequency discriminator including triodes 19, 20 to which synchronizing pulses are supplied at terminal 7, the output of the frequency discriminator being applied to the oscillator to vary its free-running frequency in such a way that the ratio of the freerunning frequency to the synchronizing frequency is constant, and the synchronizing pulses are also supplied directly to the grid 9 of tube 10 to effect exact synchronism of the oscillator. Tube 19 conducts when each pulse is applied at terminal 7, discharges capacitor 23 and cuts off tube 20 whose mean output voltage is applied to the oscillator 9-13, and is linearly proportional to the synchronizing frequency. An oscillator 36, Fig. 4, controlled in this manner by a frequency discriminator 34 and sychronizing pulses applied to terminal 37, may act as a stable frequency source for a further oscillator 33 connected in a retroactive loop including a phase comparator 35. The synchronizing system may be employed to provide a line time base which may be synchronized to the different frequencies of different scanning standards.
Patent GB-855661-A (GB)
Title: Improvements in or relating to protective cans for nuclear reactor fuel elements
Inventor: SKIPPER REUBEN GEORGE SANDY
IPC: G21C3/08
Filed: 1957-04-11
Abstract: 855,661. Nuclear reactors. GENERAL ELECTRIC CO. Ltd. April 10, 1958 [April 11, 1957], No. 11950/57. Class 39(4). A protective can for a nuclear reactor fuel element is provided with a plurality of longitudinal fins radiating from the outside of the main body of the can, passages being arranged through the fins at intervals along their lengths, and with baffles between adjacent fins, the baffles extending along a part or the whole of the length of the fins and each varying in distance from the main body along its length from a maximum at one end of the baffle to a minimum at the other. The can shown in Fig. 3 comprises a cylindrical body 1 provided with longitudinal fins 2. Between each pair of adjacent fins extend planar baffles which run along the whole length of the fins. Baffles 4 are fixed between the tips of the fins at their lower ends and near the roots of the fins at their upper ends ; baffles 5 are secured near the roots of the fins at their lower ends and near the tips of the fins at their upper ends. The fins are provided with radial slots 6 which may be arranged to lie on a continuous spiral or may be arranged in a series of planes transverse to the axis. The baffles need not be the same length as the fins ; baffles of a half, a third, or a quarter of the length may be employed, arranged in series along the length of the space between the fins and arranged to have similar or alternate inclinations. Specification 791,011 is referred to.
Patent GB-857057-A (GB)
Title: Industrial trucks
IPC: B66F9/075
Filed: 1959-04-09
Abstract: 857,057. Industrial lift trucks. YALE & TOWNE MANUFACTURING CO. April 9, 1959, No. 11986/59. Classes 79(3), 79(4) and 79(5). An industrial truck comprises the frame members 10, 11, 12 upon which is mounted a motor 19 driving the front wheels 21, an auxiliary motor 22 driving a pump 24 for operating the hydraulically controlled accessories and a fluid reservoir 25. The rear wheels 29 are carried upon an axle 27 rotatably mounted upon a trunnion 31 attached to the frame member 12 and are steerable about king pins 36, being connected together by a tie rod 37. The steering mechanism comprises a manually operated wheel 39, rotation of which is transmitted to the back wheels through a shaft 41, steering box 40, cardan shaft 44, a shaft mounted in a bearing sleeve 49 passing'through the frame member 10, and a pitman arm 50 connected by a drag link 50 to the tie rod 37.
Patent GB-754754-A (GB)
Title: Improvements in fuel tanks
IPC: B65D90/36
Filed: 1954-04-26
Abstract: 754,754. Fuel tanks. CAULAT, H. April 26, 1954 [April 24, 1953], No. 12028/54. Class 75(1). [Also in Group XXIX] A safety-panel for fuel tanks in which coversecuring means are adapted to shear and release a cover under excessive pressure in the tank and hence reduce damage to the tank comprises as shown a frusto-conical rim 4 disposed around an opening 3 in the tank 1, a cover 2 also having a frusto-conical rim 5 fitting inside the rim 4, an annular packing 13 compressed between the rims with a rolling action as the cover is forced into position, and cover-holding members 10 secured to supports 6 by shear-pins or rivets 11 and 12. The upper part of each support 6 may be bent outwards so that the face of the member 10 is substantially parallel to the rims 4 and 5 at this point.
Patent GB-1418749-A (GB)
Title: Electronic drive circuit for maintenance of the oscillations of a balance wheel
IPC: G04C3/06
Filed: 1973-03-13
Abstract: 1418749 Pulse oscillator circuits EBAUCHES SA 13 March 1973 [28 March 1972] 12058/73 Heading H3T [Also in Division G3] The oscillations of a balance wheel of a timepiece are maintained by an astable multivibrator (e.g. as Fig. 1) comprising a coil 4 electromagnetically coupled to the balance, transistors T1, T2, a timing circuit including capacitor 1 and a negative feedback circuit including T3, T4 and resistor 5 connected as a current mirror. When current 12 increases, the potential at a point B becomes lower. Consequently currents I4 and I3 become lower. (The ratio of I3/I4 is said to equal the ratio of areas of the surfaces of T3 and T4). The decreasing of current I3 opposes any increase in I2 and a state of equilibrium is reached before T2 is saturated. The use of a more elaborate current mirror in integrated form is described with reference to Fig. 2, not shown.
Patent GB-896081-A (GB)
Title: Improvements in or relating to the production of insoles for footwear
IPC: A43B17/02
Filed: 1958-05-14
Abstract: 896,081. Insoles. CASTLE, R. May 14, 1958, No. 12062/57. Class 17(2) A separate insole to comform to an individual foot and to engage and support the entire area of the foot, is formed by softening a sheet of resilient thermoplastic material and bringing it into close contact with a plaster cast formed from the foot. Foam plastic or foam rubber may be used, and may be backed with a sheet of linen, leather &c. Small perforations may be provided in the depressions in the insole to ventilate the shoe. To facilitate the insertion of the insoles into the shoe the portions of the insole forwardly of the depressions may be trimmed away. Replacement of the insole may be prevented by means of a disc or plug of leather &c. attached to the underside of the insole and engaged in a complementary recess in the heel of the shoe. Modelling clay, or potters clay and plaster may be used to form first a pattern and then the cast.
Patent GB-523141-A (GB)
Title: Improvements in collapsible showcards and advertising and display devices
IPC: G09F1/08
Filed: 1939-04-21
Abstract: 523,141. Showcards. WHITE, D. A., and SAXTON, CHATTERTON & CO., Ltd. April 21, 1939, No. 12071. [Class 3 (ii)] Relates to collapsable showcards &c. of the kind wherein a tubular front sheet 1 is foldably attached to a rigid back board 2 in a position to bring its bottom edge in register with the hinge line 4 of a flap 5 which can be turned to lie flat with the back 2, forming means being provided within the front sheet 1 and attached to the flap 5 so that when the latter is turned to lie at right angles to the back 2 the front sheet 1 is erected into its tubular form to represent a tin, carton &c. having the flap 5 as a base. The forming means comprises a parallel linkage separate from the front sheet 1 and made up of a pair of flat main links 6 7 parallel to the back 2 and flat connecting links 8, 9, and according to the invention the link 6 is hinged to the flap 5 on the line of the flap hinge 4 and throughout its length is otherwise entirely free from the back 2. The sheet 1 collapses about creases 3, and the link 8 may form the top shaper for the sheet 1.
Patent GB-101537-A (GB)
Title: Improvements in Playing Balls.
IPC: A63B37/00
Filed: 1916-08-28
Abstract: 101,537. St. Mungo Manufacturing Co., (Assignees of Knight, W. R.). Sept. 18, 1915, [Convention date]. Balls.-A liquid-cored golf ball contains one or more balls F of weighted rubber, metal, or com. position, free to move in the liquid and preferably of greater specific gravity than the liquid. The liquid is contained in a rubber bag, which is pre. ferably reinforced with an interior layer of fabric. The walls of the bag may consist of a layer of fabric with an exterior and an interior covering of rubber. The ball is completed by the addition of windings of rubber tape C, rubber thread D, and the usual guttapercha cover E.
Patent GB-983878-A (GB)
Title: Castellated nuts
IPC: F16B39/04
Filed: 1962-03-29
Abstract: 983,878. Locking nuts. ELASTIC STOP NUT CORPORATION OF AMERICA. March 29, 1962 [April 11, 1961], No. 12185/62. Heading F2H. A castellated metal nut includes resilient material e.g. an insert collar 16 of nylon, having castellations 18 in correspondence to the nut and for engagement with the bolt thread for locking, with subsequent expansion into the spaces between the nut castellations 12 to cushion a cotter pin to be used with the nut. The bottoms of the slots between the nylon castellations are level with or proud of the bottoms of the slots between the metal castellations and the nylon slots may be narrower.