baber/WOPTO huggingface dataset:
Patent GB-491692-A (GB)
Title: Improved method of making non-metallic sliding clasp fasteners
IPC: B29D5/08
Filed: 1937-11-25
Abstract: 491,692. Sliding - clasp fastenings. PUSCHNER, J., and PUSCHNER, J. Nov. 25, 1937, No. 32508. [Class 44] Sliding - clasp fasteners are made from a flat strip of non - metallic material with a series of apertures 4 cut therein of such shape that on bending the strip to a U -shape a series of fastener elements connected by small bridge pieces at the sides is obtained; this U -shaped strip is then mounted on the stringer tape, as by adhesive, Fig. 2, and thereafter the small bridge pieces are cut away as shown at 10, Fig. 3.
Patent GB-1145554-A (GB)
Title: Semiconductor delay line
IPC: H03H11/26
Filed: 1966-07-20
Abstract: 1,145,554. Delay lines; semi-conductor devices. RADIO CORPORATION OF AMERICA. 20 July, 1966 [30 July, 1965], No.32589/66. Headings H1K and H1W. A delay line comprises an element of semiconductive material adjacent to, insulated from and co-extensive with a section of transmission line or waveguide to which the signal to be delayed is applied. A control field is applied to the element in the direction of energy propagation and it is stated that the delay is inversely proportional to the applied potential and that there is no attenuation. The semi-conductive material may be n or p type germanium or silicon or materials such as GaAs or InSb may be used. The element fills the entire propagation space of a waveguide or coaxial line except for insulating layers around the conductors. A rod of semi-conductive may be inserted between the conductors of a strip line. Matching to external circuits may be obtained, e.g. by exponentially flairing the outer conductor of the coaxial delay line at its ends or by the use of cathode-follower circuits. When a waveguide is used, the input and output may consist of coaxial couples extending through the broad wall of the waveguide.
Patent GB-373551-A (GB)
Title: Improvements relating to jute softening machines
IPC: D01B9/00
Filed: 1931-11-27
Abstract: 373,551. Jute-softening machines. FRASER, G., FRASER, N., and FRASER, J., Westburn Foundry, Arbroath, Angus. Nov. 27, 1931, No. 32896. [Class 120 (i).] In a jute-softening machine of the type comprising two series of inter-connected gable frames, each gable, other than those at the driving or feed end of the machine, is of angle formation 1, 2, Fig. 1, or of T-formation 8, 9, Fig. 3, and is connected to the corresponding gable of the other series by a cross-stay 6, Fig. 1, or 10, Fig. 3, the construction providing a machine frame of which the legs are unconnected at their bases by members tending to obstruct the floor space 7 below the rollers. The gable 4, 5 at the driving or feed end of the machine is of inverted U-shape. The spaces 7 may be enclosed by sheet metal detachable or hinged covers.
Patent GB-911770-A (GB)
Title: Improvements in or relating to nuclear reactor plant
IPC: G21C19/14
Filed: 1961-09-14
Abstract: 911,770. Nuclear reactors. BABCOCK & WILCOX Ltd. Sept. 14, 1961 [Sept. 16, 1960], No. 32972/61. Class 39 (4). The reactor cone and heat-exchanger of a nuclear power plant are housed within a pressure vessel which is provided with an opening that is normally sealed, and a cover is secured to the pressure vessel around the opening to provide a containment chamber into which the opening leads. The pressure vessel consists of a cylinder 1 closed by end caps 2 and 3 containing a reactor core 4 and a heat-exchanger 5 separated by shielding 6. Charge tubes 9, which are normally sealed, provide access to the core for the charging machine 11 located within a cover formed by the spherical part 12 and tubular flange 13 which slides over the tubular flange 8 and to which it is held by bolts or other means. Sealing means 15 is provided between the flanges so that the cover provides an auxiliary closed chamber at a lower pressure than the main vessel, which may be insulated internally and cooled externally. In a modification, safety valves or rupture diaphragms may be provided in the region of the charge tubes 9 should the pressure within the cylinder 1 approach a dangerous value.
Patent GB-1091778-A (GB)
Title: Dynamic antiresonant vibration damping means
IPC: F16F7/10
Filed: 1965-08-03
Abstract: 1,091,778. Vibration isolators. KAMAN AIRCRAFT CORPORATION. Aug. 3, 1965 [Nov. 3, 1964], No. 33124/65. Heading F2S. A body 22 is supported upon a base 24 subjected to vibrations 36 by means of a vibration isolator comprising spring means 26 and an auxiliary mass 28, 34 having means 28 for moving it relative to, and in response to relative movement between, the body 22 and the base 24. The weight 34 is carried by a lever 28 which is pivoted respectively to the body 22 and the base 24 at points 30, 32, the combined mass of the lever 28 and the weight 34 constituting the auxiliary mass having a centre of gravity at a distance R from the pivot point 30. The weight need not be separate from the lever which may itself constitute the auxiliary mass. The centre of gravity of the mass may be designed to fall at various points along the length of the lever. In various modifications the lever and weight system is replaced by (a) a rack carried by the body 22 and co-operating with a flywheel pinion constituting the auxiliary mass and supported on the base 24; (b) two weights which are moved laterally toward or away from each other by linkages connecting them to the body and the base, (c) a horizontally disposed weighted annulus which is rotatable about a vertical axis by means of arms connecting it to the body and the base. In the arrangement shown in Fig. 1, springs may be located between the sides of the body 22 and the base 24, the lever 28 being pivoted to also swing laterally. An isolator may be connected between the base and an intermediate platform (112), Fig. 6, not shown, a spring damper system including springs (108), and a dashpot (110) being positioned between the body (22) and the platform (112). A spring damper system may also be arranged in parallel with an isolator arrangement.
Patent GB-325018-A (GB)
Title: Improvements in or relating to fire alarms
IPC: G08B17/04
Filed: 1928-11-13
Abstract: 325,018. Marklund, C. O. Nov. 13, 1928. Alarms operated by fusible devices and by change of gas pressure. - In alarm-operating means of the kind comprising a pressure-sensitive device controlled by the air pressure in a piping system arranged in the room or building to be protected, the piping 1, in which a constant pressure is maintained by an air reservoir 6 and pipe 5 with a " bleeder " device 22, contains U-shaped portions 2 with outlets 2<A> closed by fusible plugs, and opens into a chamber 3. To the latter is connected a hollow, curved, tube 4 which tends to straighten under the pressure in the piping, and so holds raised, by means of catch members 7, 8, a pivoted arm 9. When a plug 2<A> is heated and fuses, air escapes from the system and the tube 4 becomes more curved. The arm 9 is released and, in falling, exhibits a visible warning 13 through an aperture 13<A> in the casing 29. and rotates a rock-shaft 20. The latter carries an arm 31 which closes an electric circurt at 31<A> to sound a local alarm bell, and an arm 21 which releases the starting ratchet-lever 14<A> of an automatic telegraph transmitting device 14 for giving a distant alarm. A valve 33 is designed to open the piping system to atmosphere for testing purposes. In a modification, the piping system is evacuated, the tube 4 then acting to release the arm 9 when pressure in the piping is increased after fusing of a plug 2<A>.
Patent GB-624018-A (GB)
Title: Manufacture of polyazo dyestuffs
IPC: C09B35/40
Filed: 1946-11-08
Abstract: Polyazo dyestuffs, which dye natural and regenerated celluloses in brown and dark brown shades, are manufactured by coupling diazo or polyazo dyestuffs of the general formula <FORM:0624018/IV (c)/1> (wherein R represents a hydroxy group or a substituent convertible thereto, X represents the radical of a coupling component which contains an OH or NH2 group in o-position to the carbon atom at which coupling is effected, and which may also contain azo groups, and Y represents a sulphonic or carboxylic acid group) with diazo-azo compounds of the general formula <FORM:0624018/IV (c)/2> (wherein A represents the radical of a hydroxybenzene-o-carboxylic acid, which may be further substituted, B represents a mono- or multi-nuclear radical of the benzene series or a radical of the naphthalene series, which may be further substituted, and Z represents an anion).  The products may be treated in substance or on the fibre with agents yielding copper.  Suitable dyestuffs of formula (I) are obtainable by tetrazotizing 1 mol. of 1-hydroxy-, 1-methoxy, or 1-chloro-2 : 6-diaminobenzene-4-sulphonic acid or 1-hydroxy-2 : 6-diamino-benzene-4-carboxylic acid, and coupling with 1 mol. of any desired coupling component X-H and 1 mol. of resorcinol; or by diazotizing 1 mol. of 1-hydroxy- or 1-methoxy-2-amino - 6 - acetylaminobenzene - 4 - sulphonic acid or 1-hydroxy-2-amino-6-acetylaminobenzene-4-carboxylic acid, coupling with 1 mol. of any desired coupling component X-H, hydrolysing the acetylamino group after diazotization and before or after coupling, and subsequently rediazotizing and coupling with 1 mol. of resorcinol.  Many components are specified and examples and a table illustrate their use.  Specifications 578,537 and 610,772 are referred to.
Patent GB-1453736-A (GB)
Title: Plant container provided with a device for the retention of  water therein
IPC: A01G27/00
Filed: 1974-07-31
Abstract: 1453736 Water retention device for plant pots L R CHATELAIN 31 July 1974 [1 Aug 1973] 33780/74 Heading A1E A plant pot 1 is provided with a waterretaining device comprising a hollow cylindrical member 3, which is fixed to the base of the pot 1, so as to surround the drainage aperture 2. The upper end of the device contains at least one opening 7. The device may be made of metal, plastics or clay, and it may be either adhered at 6 to the pot 1 or formed integrally therewith.
Patent GB-876811-A (GB)
Title: A plough share and method of its manufacture
IPC: A43D69/12
Filed: 1958-10-22
Abstract: 876,811. Agricultural implements. AGROSTROJ ROUDNICE N. L., NARODNI PODNIK. Oct. 22, 1958 [Oct. 23, 1957], No. 33804/58. Class 6(1). A ploughshare consists of a basic part 1 with a chamfered cutting edge formed with a surface hardened layer and a beak part 2, fixed by screws 9 to the part 1, the beak part 2 being formed with a cutting edge which is surface hardened.
Patent GB-302497-A (GB)
Title: Improvements in and relating to low-voltage continuous current motors
IPC: H02K23/54
Filed: 1927-12-14
Abstract: 302,497. Keller, A. V., and Ancoek, B. F. Dec. 14, 1927. Rotary machines; coils; exciting. - A low-voltage continuous-current motor comprises one or more permanent magnets 3 having wound soft iron poles 5 between which rotates a disc armature 9 provided with a number of coils 21, the ends of the coils being connected to the segments of a commutator 15 upon which bear fixed brushes 11 adapted to be connected to the source of supply, the middle points of the coils being connected to the segments of a second. commutator 16 upon which bear brushes 7 connected to coils 6 upon the soft iron poles of the magnets. The permanent magnets preferably consist of steel laminations of high coercive force bolted together and adjustably secured in a frame 2 by screws 8, and the ends 4 are bored to receive the soft-iron cores 5. The armature coils preferably have the shape shown in Fig. 4 and are so located on the armature that the flux from the magnets passes only through the extended ends 22. The coils are held between thin pressed discs of aluminium or other material lined with insulating material and are secured by pressed indentations on the discs. The spindle 10 may carry a number of separate armatures co-operating with a number of independent magnets or with a single equivalent magnet.
Patent GB-510772-A (GB)
Title: Respiratory appliance
IPC: A61M16/00
Filed: 1938-11-22
Abstract: 510,772. Fluid-pressure servomotor-control systems; valves. DRAGER, O. H. Nov. 22, 1938, Nos. 33887 and 33888. Convention dates, Dec. 2, 1937, and Dec. 23, 1937. [Class 135] [Also in Group VI] The respiratory passages in a breathing bag 7 are, prior to use, flushed with a stream of oxygen admitted through a nozzle 5 having a permanently open lateral passage 21 for the normal supply and controlled by a valve 19. The valve is urged away from the mouth of the nozzle by a spring 18 and closed thereon after a predetermined time by the build-up of pressure in a space 14 above a diaphragm 15 which presses on a plate 16 mounted on the valve stem 17. The time required for the pressure to build up depends upon the size of a nozzle 9 in a duct connected to the oxygen inlet passage 1. The space 14 is provided with a relief valve 32 which may be actuated by hand. A fine bore pipe may be substituted for the nozzle 9.
Patent GB-341602-A (GB)
Title: Propulsion of aircraft
IPC: B64D27/02
Filed: 1929-11-07
Abstract: 341,602. Controlling and propelling aircraft. BROWN, A. HALL-, 14, Carlisle Mansions, Carlisle Place, Victoria, London. Nov. 7, 1929, No. 33966. [Class 4.] Reactions obtained from the discharge of the exhaust gases of an internal - combustion engine at a number of points on the wing or wings are utilized to propel or control an aircraft. The exhaust gases from the driving engine A of an aeroplane, Fig. 1, are led through a pipe B to branches C, D disposed along the trailing edge of the wing E, each branch being fitted with jets F. The branches C, D may be swivelled independently to control the aeroplane, for instance to increase the lift whilst landing. A valve G controls the supply of gas to one or both sides. The engine may be modified to obtain extra high exhaust pressures. Forwardly directed jets may be employed for stopping way. According to the Provisional Specification, propulsion may be effected solely by exhaust jet reaction, the airscrew being omitted.
Patent GB-928221-A (GB)
Title: Improvements relating to high voltage busbar installations
Inventor: CHRISTIE JOHN
IPC: H02B13/00
Filed: 1958-10-23
Abstract: 928,221. Switchgear structures. A. REYROLLE & CO. Ltd. Oct. 16, 1959 [Oct. 23, 1958], No. 34000/58. Class 38 (5). A high-voltage bus-bar installation includes a rotatably-mounted bus-bar section 50 positioned in a gap between two spaced sections of a run of bus-bar, the section 50 constituting a switching device operable to interconnect the spaced sections or to isolate them from one another. The section 50 comprises an elongated bushing formed with a curve or angle in its length and supported at an intermediate part 52 by a bearing 54 permitting rotation of the bushing about an axis parallel to the general direction of the bus-bar run, both ends of the bushing being radially-spaced from the bearing axis. The ends of a conductor embedded in the bushing form, or carry, switch contacts which co-operate with fixed contacts 56 connected to the spaced sections or with fixed earthing contacts 57. In the arrangement shown, each bus-bar section is formed by a rotatably mounted bushing. The Provisional Specification also describes an arrangement in which a rotatable bushing similar to that described above is used as a by-pass switch for the circuit breaker of Specification 886,290, or for a vertically-withdrawable circuit-breaker.
Patent GB-1267867-A (GB)
Title: Vehicle hydraulic braking system
IPC: B60T8/26
Filed: 1970-07-14
Abstract: 1,267,867. Anti-skid systems. DBA S.A. 14 July, 1970 [31 July, 1969], No. 34000/70. Heading F2F. In a vehicle hydraulic braking system of the split type incorporating an antiskid control and wherein an hydraulic pressure control source 10 is adapted, upon actuation to supply at least two independent braking circuits 14, 16 with two separate hydraulic braking pressures respectively, an antiskid control unit 22 is located in the first circuit 14 and is adapted to modulate the first braking pressure from the control source to the hydraulic brake actuators 18, 181 of a first set of wheels 20, 20<SP>1</SP> relating to at least one vehicle axle as a function of the skidding of at least one wheel of said first set, a modulator unit 30 is located in the second braking circuit 16 and is adapted to modulate the second braking pressure from the control source to the hydraulic brake actuators 26, 26<SP>1</SP> of a second set of wheels 28, 28<SP>1</SP> relating to at least one of the other vehicle axles as a function of the braking pressure in the first set of wheel brake actuators and, at least one normally closed by-pass valve unit 42 is located in parallel fluid flow relationship with the unit 30 and is controlled as a function of the pressure differential between said separate braking pressures from the control source to by-pass the modulator unit for directly connecting the control source to the second set of wheel brake actuators, upon a failure in the first braking circuit. As shown, the unit 22 is adapted to modulate the braking pressure at the actuators 18, 18<SP>1</SP> upon receipt of an input control signal generated by a sensor 24 responsive to angular velocity and/or deceleration of the wheel, and when the pressure to the actuators becomes lower than that to the actuators 26, 261 the piston 36 of unit 30 moves upwardly to terminate communication between chambers 32, 34 via valve 40 and to decrease the braking pressure in chamber 34; if the braking pressure in the actuators 18, 18<SP>1</SP> becomes greater than that in the actuators 26, 26<SP>1</SP> the piston 36 moves downwardly to increase the pressure in chamber 34, open the valve, and to directly connect the master cylinder 10 to the actuators 26, 26<SP>1</SP>. To prevent termination of the connection between the master cylinder and the actuators 26, 26<SP>1</SP> through closing of the valve 40, a differential piston 50 in the valve 42, upon failure of the hydraulic circuit 14, moves downwardly to open the normally closed valve 44 to thereby establish direct communication between the master cylinder and actuators 26, 26<SP>1</SP>, Brake pressure modifying valves 19, 52 of the pressure limiting type or of the pressure proportioning type may operate according to the vehicle load on the axles of the wheels.
Patent GB-843493-A (GB)
Title: Improvements in or relating to methods of treating titanium ores
IPC: C22B34/12
Filed: 1956-11-07
Abstract: Titaniferous ores containing oxides of titanium and iron are mixed with carbonaceous material and the mixture is subjected to prolonged heating within the temperature range 400-1300 DEG C., e.g. for 3-5 hours, then to heating within the range 1800-2500 DEG C., e.g. for 10-45 minutes, and finally to heating within the range 1300-1800 DEG C., e.g. for 1/2 -2 hours, to cause separation of molten iron from a slag enriched in titanium.  The operation may be performed in a low shaft furnace blown with an oxygen-enriched air or in a rotary kiln. Fluxes such as lime, silica magnesia or alumina or alkali metal hydroxides, carbonates, silicates or other salts may be added.  The amount of carbonaceous material may be sufficient only to reduce the iron oxides, or to reduce the iron oxides and partially to reduce the titanium oxides or to reduce both oxides and form titanium carbide. The slag may be separated in solid, liquid, or pasty form.
Patent GB-1365773-A (GB)
Title: High creep strength austenitic steel
IPC: C22C38/54
Filed: 1972-07-20
Abstract: 1365773 Creep-resistant austenitic steel UDDEHOLMS A B 20 July 1972 [21 July 1971] 34048/72 Heading C7A A creep resistant austenitic stainless steel comprises where the per cent V is 3-4 times the per cent N and the total content of Ti, Nb, Ta, Ce and Zr in the steel is not more than 0À02%. The creep strength of the steel arises from the carbide phase M 23 C 6  precipitated in the austenite grain boundaries and vanadium nitride VN precipitated on dislocations in the austenitic matrix. A solution treatment at 1000-1200‹C followed by a water quench is applied to the steel.
Patent GB-954252-A (GB)
Title: Improvements relating to position control arrangements
Inventor: CHESMOND COLIN JOHN
IPC: G05B19/29
Filed: 1961-09-22
Abstract: 954,252. Electric selective signalling systems; subtracters. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 21, 1962 [Sept. 22, 1961], No. 34054/61. Headings G4A and G4H. A follow-up system of the type in which control of a driven member is effected in accordance with the difference between desired position and actual position representing signals is characterised in that the position representing signals are in a main non-binary radix each digit of which is binarily coded and in that individual subtractors are used for each digit of the main radix. The system also has the feature, shown in Fig. 1, that the driven member always approaches its final position by the same sequence of movements. Fig. 1 shows the sequence of movements gone through by the driven member for three different starting positions Sp1, Fig. 1a, Sp2, Fig. 1b and Sp3, Fig. 1c, where the vertical axis 'A' represents speed and is drawn at the desired final position of the driven member. The invariable final sequence of movements comprises driving.at high speed to the left until a point Xp is reached, coasting to rest driving at slow speed to the right until a point Yp is reached and coasting to rest at the desired final position. As described the point Xp is 3" before the final position, the point Yp a few thousandths away and the complete range 100". Logic circuits (Figs. 4, 5 and 6 not shown) are described for effecting the sequence of operations outlined in Fig. 1 in accordance with the difference signals produced by the subtractors are described. Subtractor-Fig. 3. A pure binary number LM, Fig. 3, is subtracted from a pure binary member LD, the difference appearing on output leads OL1 to OL5 weighted respectively 1, 2, 4, 8 and -16. Thus, for example, when 4 (LM=0100) is taken from 9 (LD= 001) the result is 5 (=00101) but when 9 (LM= 1001) is taken from 4 (LD=0100) the result is -5 (=11011).
Patent GB-435101-A (GB)
Title: Improvements in or relating to a friction material or article and method of making same
IPC: F16D69/02
Filed: 1933-12-04
Abstract: 435,101. Friction clutches. JOHNSMANVILLE CORPORATION, 22, East 40th Street, New York, U.S.A.-(Assignees of Cannon, P. D.) Dec. 4, 1933, No. 34071. Convention date, March 23, 1933. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 11, 1934.] [Class 80 (ii)] .[See also Groups VIII, IX, XXVI, and XXXIV] Friction material for clutch - facings is made by interweaving fibrous warp strands 13 and weft strands 14 around pre-formed, self-sustaining, plastic strips 16 of friction compound, binder strands 15 being simultaneously inserted between the strips 16 to connect together the flat faces of the woven tube, applying additional friction compound to the outside of the tube, compressing and shaping the tube into a flat band, and hardening the friction compound. The fibrous strands may be of asbestos, jute, or flax and may be reinforced with brass, copper, &c. wire. The friction compound may consist of rubber with usual vulcanizing agents, fillers, &c. Alternatively or in addition phenol-aldehyde resin or a drying oil such as linseed or Chinawood oil may be used. Incompletely polymerized chloroprene (CH2: C Cl. CH: CH2) is also specified. The friction compound may contain fibres e.g. asbestos. The compound applied outside may be calendered on, or coated on as a solution in a volatile solvent. The hardening may be effected by heating to vulcanize the rubber, polymerize the chloroprene, &c. The Specification as open to inspection under Sect. 91 describes also friction material made by braiding fibrous yarns, e.g. in pairs, into a tube around a self-sustaining, plastic strip of friction compound, shaping, pressing, and hardening the friction compound. The strip on its way to the braiding machine may be coated with rubber cement. This subject-matter does not appear in the Specification as accepted.