baber/WOPTO huggingface dataset:
Patent GB-525228-A (GB)
Title: Improvements in and relating to fire-extinguishing compositions
IPC: A62D1/00
Filed: 1939-02-18
Abstract: 525,228. Fire - extinguishing. MACKAHAN,  R. E., CORCORAN, T. D., HARD, M. W., and SAFFELL, H. V. Feb. 18, 1939, No. 5477. Convention date, Sept. 1, 1938. [Class 47 (ii)] A fire-extinguishing liquid comprises carbontetrachloride which, when heated, produces a heavy, blanketing vapour. and liquid readilyvaporisable aliphatic hydrocarbon, preferably of low boiling point, such as butane, which, by its rapid combustion when the mixture is thrown upon a fire, assists in vaporizing the carbontetrachloride. The butane may be added under pressure to the carbon-tetrachloride, in proportions suitable for particular fire risks. The mixture also may include carbon-dioxide under pressure, a freezing point depressant such as chloroform and trichlorethylene, and a small quantity of soda ash as a desiccant. Specifications 525,348 and 525,349 are referred to.
Patent GB-779461-A (GB)
Title: Improvements in foundation garments
IPC: A41C1/00
Filed: 1955-02-24
Abstract: 779,461. Pantie girdles. GOSSARD, Ltd. (Gossard Co., H. W.). Feb. 22, 1956 [Feb. 24, 1955], No. 5548/55. Class 141. In a pantie girdle comprising two side panels 2 connected by a back seam, a front panel 1 and a crotch piece 6, elastic bands 9 are provided around the leg openings and arranged to give an inverted V-form over the fronts of the thighs. Each band is secured at one end to the panel 1 and between one panel 2 and the crotch piece 6, and the other end crosses the band at a position spread from the first end. A detachable lining 11 may be secured within the crotch piece by looping it around elastic strips 13 and engaging its ends with buttons 12. The front panel 1 may be vertically and the side panels 2 horizontally stretchable or the front panel may be of two-way stretch or non- stretch material and the side panels of two-way stretch material.
Patent GB-705925-A (GB)
Title: Improvements in or relating to paper-making or like machines
IPC: D21F1/36
Filed: 1951-03-08
Abstract: 705,925. Fluid-pressure servomotor-control systems. BELOIT IRON WORKS. March 8, 1951 [Aug. 17; 1950], No. 5617/51. Class 135. [Also in Group VIII] One end of a guide roll 26 of a paper-making or like machine has a swivel bearing, and the bearing at the other end is in a cradle 23 resting on springs 61 and guided by uprights 13, 14 for vertical movement which is effected by a rod projecting upwardly from a diaphragm responsive to changes of the pressure of air &c. supplied at 58 and varied in accordance with the position of a tapered plug of a bleeder-valve which is controlled in accordance with the position of a feeler-plate 83 which is spring-urged against the edge of a felt &c. 85 which travels substantially vertically past the guide roll 26. The edge of the diaphragm is clamped by bolts 53 and its upper surface is at atmospheric pressure. The cradle 23 can be secured in an adjusted position by a pin 89.
Patent GB-230267-A (GB)
Title: An improvement in or relating to hopper feed mechanism for textile machines such as scribbling and carding machines
IPC: D01G23/04
Filed: 1924-03-07
Abstract: 230,267. Cliffe & Co.., Ltd., and Moorhouse, O. March 7, 1924. Feeding openers &c.-In hopper feeding- machines in which the lattice is stopped during the emptying of the weighing-pan, the lattice is driven by a belt and and loose pulleys 3, 4, Figs. 1 and 3. During normal working the belt is held on the fast pulley 3 against the action of a spring 13 by a catch lever 12 engaging an arm 14<1> on the belt fork 14. When the pan 2 is full and begins to descend the part 9<1> on the arm 9 releases the arm 8<1> on the pivoted pawl 8 and allows the pawl to swing on its pivot and engage the catch wheel 5 which is driven by a friction strap 6. This causes the arm 7 carrying the pawl to be pushed over and a screw 11 on an arm 10 to depress the lever 12 and allow the spring 13 to pull the belt fork over. When the empty pan 2 rises under the action of the usual spring 19 and lever arm 16, a rod 15 connected to this arm and carrying a projection 18 pushes the arm 14<1> to move the belt back on to the. fast pulley, whereupon the. catch lever 12 re-engages it. A projection 15<1> also moves the arm 8<1> and disengages the pawl 8.
Patent GB-291517-A (GB)
Title: Improvements in or relating to compressors for air or gas
IPC: F04B39/08
Filed: 1927-03-03
Abstract: 291,517. Ricardo, H. R. March 3, 1927. Addition to 234,183. Valves, arrangement of.-An annular delivery port A<6> or ring of delivery ports in the cylinder wall controlled by the sleeve valve is furnished with a lower sealing ring D carried by the cylinder to form the lower edge of the ports and engaging the exterior of the sleeve, and an upper sealing ring either similarly carried and constituting the upper edge, or carried by the cylinder head as at A<2> and engaging the interior of the sleeve. The sealing rings may be constructed as described in Specification 276,434, [Class 7 (vi), Internal-combustion engines, Valves &c. for]. A sealing ring L is disposed below the inlet ports A<5>. The sleeve valve, A<3> is operated from the lower stage valve B<3> by a lever K engaging the valve B<3> at one end and pivotally connected to a tubular member K<4> depending rotatably from the base F; an intermediate point K<5> is linked to a stud K' rigidly mounted on the sleeve valve A<3>. The sleeve valve B<3> may be operated by a pinion mounted in the crank case carrying an eccentric pin engaging the sleeve and driven from the crank shaft. Fig. 4 shows the sealing rings formed each as a double ring V, V<1>, the upper and lower pairs being separated by a ported distance ring W. Fig. 3 shows the rings as a pair of engaging L's containing a ported ring and tending to be separated by the pressure of air between them. The L's may be replaced by single U-rings.
Patent GB-143981-A (GB)
Title: Improvements in ships' rudders and brakes for stopping way
IPC: B63H25/38
Filed: 1919-03-10
Abstract: 143,981. Asch, N. van. March 10, 1919. Rudders; steering-gear; stopping way. - Relates to steering and braking devices of the type comprising a pair of rudders mounted on parallel rudder posts arranged in spaced relation, and consists in providing the rudder posts with forward extensions adapted to abut against one another to close the space between the posts when braking is effected. The two rudder posts 16, 17, Figs. 2 and 3, have rudders 10, 11. forward extensions 25, 26, quadrants 18, 19, and operating-pinions 20, 21 respectively. The shafts on which the operating-pinions 20, 21 are fixed are rotated by ropes 38, 39 passing over pulleys 31, 35, which can be moved by handwheels 34, 36 in the same direction for steering, or oppositely for braking or stopping way.
Patent GB-373623-A (GB)
Title: Improvements in or relating to two-way telephonic transmission systems and the like
IPC: H04B3/20
Filed: 1931-02-25
Abstract: 373,623. Two - way transmission systems. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Mathes, R. C. ; 171, Sagamore Road, Wyoming, New Jersey, U.S.A.) Feb. 25, 1931, No. 5951. Convention date, March 8, 1930. [Class 40 (iv).] When a four-wire toll telephone circuit LC is connected in tandem with the echo-suppressing four-wire repeater circuit at the end. of a submarine cable 1 or a radio link, the twowire connecting links 4, 2, in which the circuits normally terminate together with the associated. hybrid coils H2, H1, and balancing networks N2, N1, are cut out and a continuous four-wire circuit is established. At the same time the echo-suppressing arrangements 6 of the telephone circuit LC are disconnected. These operations may be effected by a manual key 41, Fig. 3, controlling relays 42 .. 45, or by plug- and-jack connections. Fig. 4. Specifications 245,554, 338,971, 333,972, 338,973, [all in Class 40 (iv), Telephones &c.], 340,624, and 369,636 are referred to.
Patent GB-802787-A (GB)
Title: An improved warp tension or like measuring instrument
Inventor: GREENWOOD KURT
IPC: D03D49/06
Filed: 1956-02-25
Abstract: 802,787. Measuring tension. BRITISH RAYON RESEARCH ASSOCIATION. May 2, 1957 [Feb. 25, 1956], No. 5954/56. Class 106 (2). [Also in Group IX] To measure the aggregate tension in threads 15 such as the warp in a loom, the threads are diverted from their normal path, some over and some under a compressible bar consisting of a wooden rod 13 grooved to receive a rubber tube 14, enclosed in a collapsible casing 11, 12. The tube 14 is connected to a glass gauge tube provided with a scale. Rapid fluctuations in tension are damped out by a restriction in the connecting tubing or by using oil of suitable viscosity. A reservoir consisting of a cylinder with a piston movable by a screw may communicate with the gauge for adjusting the zero reading. The two halves 11, 12 of the casing may be hinged together or the casing may be in one piece split along one edge. The casing may be omitted, the tube 14 being placed between two wooden or light metal bars hinged together. It is stated that the tension may be measured by a metal tube, split along one edge and containing an electrical strain gauge; in this case, a permanent record of the tension can be made.
Patent GB-658265-A (GB)
Title: Improvements in or relating to thermionic valve oscillator circuits for high frequencies
IPC: H03B5/18
Filed: 1948-02-27
Abstract: 658,265. Valve generating circuits. DEPARTMENT OF COMMERCE, DIRECTOR OF THE OFFICE OF TECHNICAL SERVICES OF. Feb. 27, 1948, No. 5978. Convention date, Dec. 10, 1945. [Class 40 (vi)] In a push-pull oscillator comprising a first lecher line connected between the anodes and a second lecher line connected between the grids the terminations of the lines are coupled to earth by impedances which prevent operation in parallel modes. As shown, the oscillator comprises a lecher line 12, 14, tuning the anode circuits and a lecher line 20, 22 tuning the grid circuits. The ends of the lines are shorted by fixed bridges 16 and 24, and adjustable bridges 17 and 25 are provided for tuning. The ends of the conductors of the lines are connected to earth through capacitors 40-43, the values of which are large enough to prevent the anode or grid circuits operating in parallel as open circuited half-wave lines and yet not so large that these circuits will operate as short-circuited quarter-wave lines. The output is extracted by a tuned loop 52, 55.
Patent GB-414599-A (GB)
Title: Telescopic tool for deep stamping
IPC: B21D22/28
Filed: 1934-02-23
Abstract: 414,599. Cupping presses. MANUFACTURE GENERALE DE MUNITIONS, Bourg-les-Valence, Dr¶me, France.-(Assignees of Brun, M. R. ; Pont-en-Royans, IsÞre, France.) Feb. 23, 1934, No. 6025. Convention date, Feb. 28, 1933. [Class 83 (iv).] Dies.-A deep cup is drawn by the single descent of a stepped die 1 over a punch comprising a core 7 with several concentric rings 8, 9 which are released to recede in sequence, so that the cup is reduced in diameter and deepened in stages. The diameter of the die 1 is reduced in steps but has enlarged clearances behind each step. In operation, a disc is cut from the plate by the cutting die 6 by descent of the die 1, and further descent cups it over the combined punch member 7, 8, 9, Fig. 4. As the draw-ring 10 descends it depresses its supports 23 against the resistance of a rubber, hydraulic, pneumatic, electric or spring &c. buffer 24. On further descent Fig. 5 the flange of the drawring 10 presses on the slope 37 of support plates 12, so that they swing outward about their pivots 11 and the support stop 35 of the plate, Fig. 5 slips from under the flange of the ring 8 allowing it to descend, so that the cup is further drawn over the parts 7 and 9 only. Still further descent similarly allows the ring 9 to descend so that the cup is finished over the core 7 only. The cup is stripped by the upward pressure of the spring 19 on the rings 8, 9, while springs 13 reset the plates 12. The die 1 contains an ejector 2 which may also carry a punch. The dies can be shaped to cup, oval, rectangular &c. forms.
Patent GB-958875-A (GB)
Title: Flexible tube
IPC: F16L11/16
Filed: 1963-02-14
Abstract: 958,875. Flexible tubes. AIR REDUCTION CO. Inc. Feb. 14, 1963 [Feb. 15, 1962], No. 6085/63. Heading F2P. A flexible tube comprises plastic strip 1 of channel cross-section wound helically with its flanges 3 outwards and contiguous and a second similar strip 4 wound with its flanges 6 inwards overlying and bonded to the outwardly directed flanges 3. The bonding may be by heat or by an adhesive. One or more layers of a plastic tape 8 may be wound over the second strip to bridge the convolutions whereby it forms external corrugations 9. The convolutions beneath the tape may be filled with a foamed elastomer 11 which may be introduced as a premoulded strip or formed in situ. A strengthening wire or electrical conductor 15 may be moulded into the first channel as shown in Fig. 8. If two conductors are necessary, the tube may be wound as a double helix 12, 13. Suitable plastics mentioned are polyvinylchloride, acrylonitrile-butadiene-styrene, polypropylene and ethylene-ethyl-acrylate.
Patent GB-744615-A (GB)
Title: Directive radio antenna arrangement
Inventor: HAWKES HENRY WILLIAM
IPC: H01Q3/14
Filed: 1954-02-26
Abstract: 744,615. Directive radio systems. STANDARD TELEPHONES & CABLES, Ltd. Feb. 26, 1954 [March 5, 1953], No. 6112/53. Class 40 (7). An antenna system for producing a rotatable pattern consists of a relatively small array unit of N spaced antennae surrounded by a stationary unit consisting of at least 2N energyguiding channels uniformly spaced round the arc of rotation of the array unit to transfer energy therefrom to free space, the outer ends of the channels collectively defining a radiation aperture large relative to that of the array unit. A system for producing a rotatable 8-petal " daisy " pattern has an array unit consisting of a hollow metal cylinder 1 rotatable about an axis 2 and provided with 8 equi-spaced slots. The slots are energized at points about a third of the way along their length by a branched balanced transmission line with the polarities indicated. Surrounding the slotted cylinder is a circular unit consisting of 36 energy-guiding channels each formed by the space bounded by the opposing surfaces of a pair of radial metal plates (e.g. 9 and 10) and the upper and lower end plates of which only the upper one 11 is shown. The channels may be partially closed at one or both ends to coupling slots but in any case their inner ends must be well within the local field zone of the rotating part of the system. The stationary unit may also be modified by the omission of the upper and lower end plates or by making these of non-conductive material. At least two channels are required in the stationary unit for each antenna of the array unit if the shape of the radiation pattern is not to vary as the antennae rotate past the channel ends. The system may be modified by replacing the slotted cylinder by a horizontal loop fed to produce standing waves round the loop having the required number of lobes. For vertical polarization the array unit slots may be replaced by centre-fed vertical dipoles and each energy-guiding channel consist of an inner collector dipole close to the array unit coupled by a non-radiating transmission line to an outer dipole radiating into free space. The dipole array in this system may be replaced by two collinear hollow metal cylinders coupled to the feeder system in balanced fashion at spaced points to provide a plurality of nodes round the slot radiator so formed.
Patent GB-1043124-A (GB)
Title: Electrical circuits including field-effect transistors
IPC: H03B5/12
Filed: 1964-02-13
Abstract: 1,043,124. Circuits employing field-effect transistors; television. RADIO CORPORATION OF AMERICA. Feb. 13, 1964 [Feb. 25, 1963], No. 6158/64. Headings H3T and H4F. Limiting is produced in an amplifier circuit employing an insulated-gate field-effect transistor by connecting the input to the gate through a capacitor 58 and connecting the gate to a point of reference potential and to a substrate electrode through respective resistors 56 and 68. A rectifying junction exists between the substrate and source electrodes so that for large-amplitude signals rectification takes place between substrate and source electrodes so producing a reverse bias at the gate electrode to produce a limiting effect. Similar limiting action may be produced in a synchronizing- signal separation, Fig. 5 (not shown) or in a free-running oscillator, Fig. 6 (not shown).
Patent GB-344204-A (GB)
Title: Improvements in or relating to the derivation of smooth unidirectional electric current from an alternating source
IPC: H02M1/14
Filed: 1930-02-25
Abstract: 344,204. Converting alternating current into steady unidirectional current. NUNN, R. H. and DEAN, F. L. W., 21, Bartlett's Buildings, Holborn Circus, London. Feb. 25, 1930, No. 6236. [Class 38 (ii).] In a rectifying arrangement of the type comprising a pair of rectifiers 15, 16 and a pair of condensers 17, 18 connected in the form of a bridge with input connections at the points 11, 12 and output connections at the points 19, 20, a single condenser 21 is connected across the output connections to effect partial smoothing of the output current. The latter may be passed through a smoothing circuit in which the capacity and inductance elements are of smaller dimensions than usual.
Patent GB-1262181-A (GB)
Title: Methods of and apparatus for controlling fluids
Inventor: STARK VIRGIL
IPC: G05D16/20
Filed: 1969-02-05
Abstract: 1,262,181. Automatic pressure control. NORTH AMERICAN UTILITY CONSTRUCTION CORP. Feb.5, 1969, No.6278/69. Heading G3R. An electrical signal periodically responsive to variations of pressure in a fluid supply line relative to a predetermined pressure controls the number of jet inductors supplying fluid to the line to maintain the pressure constant. In Fig.4, if the pressure of fluid supplied from a manifold 84 is outside limits set by adjustable contacts 23, a coil 24 or 25, according to the sense of error, is energized intermittently through a switch 26 periodically operated by clockwork. As a result, a rotary switch 27 is operated in a corresponding sense to alter, through electromagnetic relays 30-33, the number and combination of valves 38-41 which are open to supply fluid from a header 100 to manifold 84, until the pressure is restored between the limits. A further fluid is introduced into manifold 84 by jet induction from a header 85. The supplies to headers 85, 100 are controlled by valves 90, 99 which are adjusted automatically and intermittently if the pressure in manifold 84 is outside limits determined by the setting of pressure-responsive switches 93, 96. If fluid is supplied to header 100 through a heat exchanger 104, the supply of fluid and heat to the heat exchanger may also be controlled by pressureresponsive switch 96 as shown. The frequency of operation of interrupter switches 26, 92, 97 may be varied according to the time of day.
Patent GB-397909-A (GB)
Title: An improved process for making resinous products by condensing aldehydes with other compounds such as urea or phenol
IPC: C08G8/28
Filed: 1932-03-02
Abstract: In the manufacture of synthetic resins by condensing aldehydes with other compounds such as urea or phenol, in the presence or absence of an acid, basic or neutral catalyst, the reaction product is fractionated by treatment with water into portions having different affinities for water, and the separated fractions are compounded in any desired proportions to produce the final product.  In the preferred procedure, an experimental determination is made of the minimum amount of distilled water which must be added to the hot reaction mixture to effect separation into two layers when the mixture is cooled to 15 DEG  C. After adding that amount of water and cooling the mixture, the lower layer comprising the highest condensation products only is separated, and the aqueous upper layer is further diluted. Further separation then occurs, with the precipitation of middle condensation products.  The aqueous residue comprises the lowest condensation products, together with unchanged starting material and condensing agent.  An example is given in which urea and formaldehyde are condensed in known manner and the reaction mixture is treated as described above; by compounding the fractions in specified proportions a product of improved properties is obtained.  An example is given also in which phenol and formaldehyde are condensed in the presence of soda, the reaction mixture is treated as described above, and the highest and middle condensation products are mixed together, the aqueous residue being rejected.
Patent GB-270649-A (GB)
Title: Method of manufacturing improved bituminous products or other similar substances
IPC: C10C3/06
Filed: 1927-03-07
Abstract: 270,649. Alexander, D. B. W. May 4, 1926, [Convention date]. Hydrocarbons, distilling.-A method of obtaining an improved bituminous or like substance such as asphalt from a distillation process or the residuum therefrom consists in charging the still, preparing a slurry of finely divided particles of vegetable or mineral matter and a liquid which is miscible with the charge, introducing the slurry into the still for mixture with the charge, and distilling the mixture. The finely divided material, which is thus distributed evenly through the asphalt &c., may consist of wood pulp, lampblack, ground silica, Tripoli, slaked lime, limestone, or Portland cement, and is mixed with a liquid such as kerosene, gasolene, naphtha, or benzene. The slurry may be passed through a preheater, heat exchanger, or dehydrator connected with the condenser of the still, and then introduced into the charging line of the still, so that the whole mass receives the usual agitation as soon as it enters the still. In the case of steam agitation, however, such agitation is not begun until the contents of the still have reached such a temperature that the steam will not condense on entering the still. The kerosene &c. distilled off is recovered and used repeatedly.
Patent GB-1410192-A (GB)
Title: Fluorescent aryl 3,3-pyrazolyl-2-pyrazolines
IPC: C07D231/12
Filed: 1972-02-10
Abstract: 1410192 Pyrazolyl-2-pyrazolines MINNESOTA MINING & MFG CO 6 Feb 1973 [10 Feb 1972] 6384/72 Heading C2C The invention comprises aryl-3,3<SP>1</SP>-pyrazolyl- 2-pyrazolins of general formula in which R<SP>1</SP> to R<SP>4</SP> are the same or different and represent hydrogen or alkyl or aralkyl groups and R<SP>5</SP> and R<SP>6</SP> are aryl or substituted aryl groups. Preferably R<SP>1</SP> and R<SP>3</SP>, R<SP>2</SP> and R<SP>4</SP> and R<SP>5</SP> and R<SP>6</SP> are identical. They may be prepared by reacting at least one 1 -aryl-pyrazolidin-3-one of general formula with phosphorus oxychloride in the presence of an organic base. Examples describe the preparation of (a) 1, 1<SP>1</SP>-diphenyl-3,3<SP>1</SP>-pyrazolyl-2- pyrazoline; (b) 4,4<SP>1</SP>-dimethyl-1,1<SP>1</SP>-diphenyl- 3,3<SP>1</SP>-pyrazolyl-2-pyrazoline; (c) 1,1<SP>1</SP>-di-(pchlorophenyl)-3,3<SP>1</SP>-pyrazolyl-2-pyrazoline; (d) 1,1<SP>1</SP> - p - tolyl - 3,31 - pyrazolyl - 2 - pyrazoline; (e) 5,5<SP>1</SP>-dimethyl-1,1<SP>1</SP>-diphenyl-3,3<SP>1</SP>-pyrazolyl- 2-pyrazoline; and (f) 1,1<SP>1</SP>-di-(p-anisyl)-3,3<SP>1</SP>- pyrazolyl-2-pyrazoline. It is stated that the products may be used as optical brightening agents.
Patent GB-719805-A (GB)
Title: Improvements in or relating to tubular heat exchanger walls
Inventor: TOLLOW FREDERICK SYDNEY
IPC: F22B7/16
Filed: 1952-03-12
Abstract: 719,805. Furnace walls. BABCOCK & WILCOX, Ltd. March 12, 1953 (March, 12, 1952], No. 6402/52. Class 51 (1) A tube wall for a furnace comprises a wall 10 held to tubes 2 by studs 3 screwed into nuts 1 welded to the tubes and longitudinally slit at 4 so that in the event of abnormal pressure within the chamber causing the wall to be forced outwards the studs 3 will separate from the nuts 4 before the force transmitted from the wall, through the studs and sleeves, to the tubes becomes sufficiently great to damage the tubes.