baber/WOPTO huggingface dataset:
Patent GB-1035244-A (GB)
Title: High tenacity viscose rayon filaments
IPC: D01F2/08
Filed: 1963-04-01
Abstract: 1,035,244. Viscose spinning. COURTAULDS NORTH AMERICA Inc. April 1, 1963 [April 2, 1962], No. 12735/63. Heading B5B. High tenacity viscose rayon filaments are made by extruding viscose into a coagulating bath containing sulphuric acid and sodium sulphate in the presence of 0À5-2À0% by weight of formaldehyde to form filaments, withdrawing the filaments from the bath when they are no more than 20% regenerated, and subsequently stretching the filaments in a hot aqueous secondary bath and maintaining the acid concentration in the secondary bath at less than 0À5% by weight of sulphuric acid. The viscose may be made from pulp where cellulose has a degree of polymerization of 300-600, preferably over 600. Preferably the alkali cellulose is not aged, and the viscose spun without substantial ageing. It may contain 2-7% cellulose and 2-9% sodium hydroxide, and may have a sodium chloride salt figure of 12 to 23, a gamma number of not less than 60, normally 75 to 90, or higher, and a ball fall viscosity of 30-400 secs. Formaldehyde may be added to the viscose. The coagulating bath may contain 3-9% by weight sulphuric acid, 4-18% by weight sodium sulphate, (Na 2 SO 4 ) zinc sulphate being absent or below 0À2% of the anhydrous salt, and preferably contains 0À5- 1À0% by weight of formaldehyde. The coagulating bath temperature may be 20-35 C. The filaments are then passed through the aqueous secondary bath containing not more than 0À5% by weight sulphuric acid, suitably at 60-80 C., and suitably containing less than 1À0% by weight of formaldehyde, and may be stretched 150À350%. In examples, filaments of 1À20-1À55 denier so made have tenacities exceeding 5 g/denier.
Patent GB-1162042-A (GB)
Title: Improvements in Control apparatus for Stress/Strain Testing Machines
Inventor: BALL ROBERT EDWARD MICHAEL
IPC: G01N3/06
Filed: 1967-03-18
Abstract: 1,162,042. Stress/strain testing machines; recording apparatus. W. & T. AVERY Ltd. June 17, 1968 [March 18, 1967], No.12804/67. Addition to 1,050,348. Headings G1J and G1S. In the stress/strain testing machine described in the parent Specification, the response cursors are driven by servomotors 48, 49 which also drive a recording device. The stress cursor and the strain cursor are connected to wires 50 and 51 respectively which control between a set of pulleys 45 and a further set of pulleys on each side of a stress/strain display panel. The recording device comprises a drum 52 which is rotated by the wire 51 and a scribing instrument 54 which is moved along a guide rod 71 by the wire 50. The wire 51 rotates a pulley 60 which in turn rotates the drum 52 via gearing 65, 66. The scribing instrument 54 is mounted on a carriage 70 attached to a loop of wire 72 and the position of the carriage may be adjusted by a zero setting device comprising a knurled nut 74 on a threaded rod 75. The wire 50 is attached to the carriage 70. A sheet of paper is arranged around the periphery of the drum but a flat plate recorder may be used.
Patent GB-718834-A (GB)
Title: Improvements in or relating to servo-operated fluid pressure vehicle brake mechanism
Inventor: DEAN-AVERNS REGINALD
IPC: B60T11/10
Filed: 1952-05-21
Abstract: 718,834. Fluid-pressure brakes. WALKER BROS. (WIGAN), Ltd. April 14, 1953 [May 21, 1952], No. 12809/52. Class 103(1) In a servo-braking system for vehicles of the type wherein the handbrake lever 5 acts by mechanical means only upon the rear wheel brakes and its ratchet mechanism is used to lock the brakes for parking purposes, the parking brakes for the vehicle are made more effective by arranging for an isolating valve 16 between the fluid pressure servo-device 11 and the brake cylinders on either the front wheels or on all the wheels, to be shut by the initial movement of the handlever. As shown the isolating valve 16 is of rotary type and is linked to handlever 5 by an arm 18 connected to crank 21 by a slot 20 so shaped that the flow port 17 is quickly shut off by the first movement of the handlever, subsequent movement of which does not move the valve through a substantial angle. For full effective braking during parking the brakes are thus pressurized by the pedal 8, this pressure being maintained by actuation of the hand lever 5. A non-return valve 25, by-passing the isolating valve 16 enables the brake pressure to be increased if necessary without opening the isolating valve 16. In another arrangement described the isolating valve is of piston type operated by a pair of solenoids energized by operation of a two-way switch controlled by a press button on the hand lever.
Patent GB-567925-A (GB)
Title: Improvements relating to rail joints
IPC: E01B11/58
Filed: 1943-08-09
Abstract: 567,925. Rail joints. UNITED STEEL COS., Ltd., JAMES, W. L., and MASON, B. G. Aug. 9, 1943, No. 12829. [Class 104 (ii)] A rail-joint supporting member made from a rolled steel section has one or two rail-locating flanges or ribs of uniform depth and extending the full length of the member. Fig. 1 shows a member 5 made from a simple channel section and bent so as to rest on the strengthened edges 6 of the sleepers. Alternatively, the member could be straight and lie below the rails in specially deep chairs. Fig. 10 shows a rolled section with one rib. It can be used as cut, or each piece can be strengthened, as shown, by bending down the middle portions of the edges to form flanges 15.
Patent GB-1401172-A (GB)
Title: Hygrometers
IPC: G01N27/12
Filed: 1971-05-04
Abstract: 1401172 Measuring vapour pressure electrically NATIONAL RESEARCH DEVELOPMENT CORP 22 June 1972 [4 May 1971] 12837/71 Heading G1N [Also in Division G3] An arrangement for measuring vapour pressure comprises an element whose impedance varies with vapour pressure, and a heater controlled to maintain the temperature constant. As shown the device comprises an aluminium tube 11 having a porous moisture-absorbing surface layer of aluminium oxide and an over-lying porous gold layer 13, the capacitance between layers 11 and 13 being measured by a conventional bridge. The layer 13 is also used between terminals 14, 15 to constitute the heater 45, and is supplied through a rectroactive control circuit, (see Division G3); Fig. 2 (not shown), to maintain the temperature (sensed by thermistor 22A) constant. Alternatively the heater may be of the wire wound kind and disposed in the bore 23.
Patent GB-1075082-A (GB)
Title: Improvements relating to carpet looms
Inventor: LOWE HARRY FREDERICK
IPC: D03D39/02
Filed: 1964-03-26
Abstract: In a gripper axminster loom the jacquard mechanism is arranged substantially horizontally so that the tuft yarns project downwardly. Tuft yarns (12) from a creel (16) are fed over guides (14) to yarn carriers (13) which have stepped slots (30), (31) under a number of jacquard cylinders (22), (23) which are alternately arranged and each act on a group of carriers (13). The cylinders (22), (23) move downwardly in two steps.  During the first step a blank in a card causes a selector (26) to protrude into a slot (30), the jacquard carriage (24) is then moved to the right so that the selector (26) is over the deeper slot (31) and the cylinders are then moved downwardly again so that the selector enters the slot (31).  The carriage (24) is then moved to the left so that the selector (26) abuts an edge (32) of the slot (31) and the carrier (13) is moved to present a selected tuft to the grippers (5).
Patent GB-144459-A (GB)
Title: Improvements in sliding windows
IPC: E06B3/50
Filed: 1919-05-23
Abstract: 144,459. Moody, J. J. May 23, 1919. Window holders for sliding sashes; pivoted sliding window.-In a sliding window of the type in which the sash is maintained in position by a spring-pressed ball and recesses, two or more similar sashes are housed in the same grooves in the frame. The lower half of the parting bead is cut away to allow a sash to be transferred from one groove to the other for raising &c. and a spring-pressed ball 11 engages one of the pearshaped openings in the plate .16 on the sash to hold the window in position. A catch comprising a casing holding two spring-pressed balls 24 connected as shown by a pivoted lever 30 and plungers 26 is housed in the frame just below the bead. The sash pivots on one ball which is en. gaged therewith bv the flush face of the sash pressing on the other ball.
Patent GB-455982-A (GB)
Title: Improvements in vaporising devices for internal combustion engines
IPC: F02M31/18
Filed: 1935-05-01
Abstract: 455,982. Vaporizers. HANSEN, N. F., Sollested, Denmark. May 1, 1935, No. 12986. [Class 7 (iii)] Fuel from a container 19 is heated in a chamber 9 around the engine exhaust pipe 1 and passes through passages 7, 6 in a copper block 5 into a nozzle 12 controlled by a valve 16 and discharging into the suction pipe 11. Fuel vapours in the space 9 are returned to the container through a pipe 21 and led through a pipe 23 to the space surrounding the nozzle.
Patent GB-803793-A (GB)
Title: Cleaning appliances and associated storage device
IPC: A47L13/51
Filed: 1955-05-04
Abstract: 803,793. Vacuum cleaners. GRAMBKOW, B. VON. May 4, 1955 [May 4, 1954], No. 12987/55. Classes 8(1) and 8(2). [Also in Groups XVII and XXIII] A cleaning unit, Fig. 7, comprises a portable casing 4 containing a cylinder type vacuum cleaner 28, Fig. 9, and the tools therefor and having attached to its exterior the suction tubes for the cleaner and a handle which may be associated with a number of further cleaning elements such as brushes also contained in the container. An aperture in the side of the container permits the suction tubes to be fitted to the cleaner without removing the latter from the container. In a further embodiment, Fig. 10 (not shown) the cleaner is clipped to the exterior of the casing. It is also suggested that alternatively an upright type suction cleaner could be secured to the exterior of the casing. Such a cleaner could comprise a transverse motor and fan assembly 41, Fig. 12, connected through a duct 42 to a suction nozzle 43. It is also suggested that the dust bags for the cylinder cleaners could comprise asoda-cellulose paper bag 38, Fig. 11, with a gauze filter 37. This filter may be disposable with the bag or may be used with the next bag.
Patent GB-948418-A (GB)
Title: Improvements relating to the production of aluminium by melt electrolysis
IPC: C25C3/18
Filed: 1962-04-04
Abstract: Aluminium is produced by fusion electrolysis using a selected alumina having the following combination of properties: a true density exceeding 3.8 g. per c.c. (i.e. measured by pyknometer), an average heat conductivity between 3.5 and 2.9 X 10-4 cals./cm.S.  DEG C., and a loose cone angle of 45-55 degrees (i.e. angle of repose of heaped alumina). These properties and their determination are described in detail. The alumina is mainly a -Al2O3, and dissolves readily in the fusion melt.
Patent GB-107870-A (GB)
Title: Improvements in Machine for Cutting Barrel Staves and the like.
Inventor: ANDERSSON AXEL EDWARD
IPC: B27H3/02
Filed: 1916-09-13
Abstract: 107,870. Andersson, A. E. Sept. 13, 1916. Shaping by cutting; work-holders.-In machines for shaping the edges of cask staves of the kind wherein a wood-blank 4 and a templet 14 are carried by a table 3 past a rotary cutter 6 and guiding-roller 17, both carried by a shaft 18 pivoted so as to cause the bevelling of the edge of the stage to vary with the width of the stave at each point, the pivot 22 upon which the shaft 18 is rocked by the action of the templet 14 upon the roller 17 is situated in the machine opposite that face of the stave which goes to form the outside surface of the cask. The blanks 4 are held upon the reciprocating table 3 by spikes in the surface of the table and by a spring-pressed roller 8, and are initially positioned thereon between a central stop 11 on one side and a spring-pressed fork 13 on the other.
Patent GB-971683-A (GB)
Title: Improvements in high-frequency switching arrangements
IPC: H01P1/23
Filed: 1963-04-02
Abstract: 971,683. Combined radio receiving and transmitting systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 2, 1963 [April 5, 1962], No. 13021/63. Heading H4L. [Also in Division H1] In a T-R switching arrangement for a radar transmitter-receiver, transmitter pulses together with oscillations from a local oscillator are fed to one end of a rectangular waveguide 2 which contains the receiver mixer crystal 4, the waveguide being short-circuited at the other end by a piston 3. A phase-shifter comprising a ferrite rod 5 in the waveguide is controlled by a coil 6 disposed around the waveguide. In order to reduce the effect of the wall of the waveguide on the coil 6 a section 7 is made of insulating material coated on its inner surface with a metal layer 8 to form a continuation of the waveguide. The coil 6 is energized from a voltage source - V through resistors 18 and 9 and the resistor 9 is shunted by a transistor 10 which conducts to short-circuit resistor 9 between each transmitter pulse. The arrangement is such that during a transmitter pulse the electrical length of waveguide between diode 4 and piston 3 is equal to an even number of quarter wavelengths of the transmitted frequency so that the diode is located at a node of the electric field and during reception of the echo signals the current through the coil 6 is such that the electrical length between diode 4 and piston 3 is equal to an odd number of quarter wavelengths. During each transmitter pulse a positive pulse cuts off the transistor 10 and the pulse then decreases in a sawtooth manner to ensure that the receiver does not reach maximum sensitivity immediately after the end of the transmitter pulse in order to reduce the effect of strong echo signals from nearby objects.
Patent GB-276084-A (GB)
Title: Improvements in or relating to picture and the like telegraphy
IPC: H04N3/12
Filed: 1926-05-21
Abstract: 276,084. Round, H. J. May 21, 1926. Television; copying-telegraphs. - A bundle of quartz or glass rods or a bundle of tubes silverpolished on the inside is arranged with one end massed behind the picture to be transmitted, or behind the receiving screen, and the other ends of the rods or tubes are arranged to co-operate with one or more light-sensitive cells or with one or more variable light sources according as the apparatus is transmitting or receiving. Fig. 1 shows a transmitting arrangement. The ends 32 of the rods or tubes 3 are massed behind the picture 1 on which light is projected by a lens 2, and the ends 3<b> are arranged in a circle. The light-sensitive cell 4 carried by an arm 5 is moved in a circle beneath the ends 3<b>. Alternatively, a separate cell may be provided for each rod or tube, the current from each cell charging a condenser, and the condensers being discharged successively through a rotating brush. At the receiving station a light-source variable by the currents from the cell 4 is moved in a circle synchronously with the cell or brush, and the rods or tubes are arranged similarly to those at the transmitting station. Alternatively, a separate light-source may be provided for each rod or tube, each such source being controlled from a corresponding segment of a commutator traversed bv a brush moving synchronously with the cell or brush at the transmitting station.
Patent GB-130599-A (GB)
IPC: F01K25/06
Abstract: 130,599. Zack, M. July 28, 1919. Working-fluid supply.-In a motor, part of the gaseous mixture is condensed when expanding in one unit of the motor, and a further part of the gaseous mixture is condensed when expanding in a second unit, the invention being shown applied to a two-stage gas turbine 1, 2 supplied by hot gases from an internal-combustion engine or a furnace, the exhaust from the turbine being cooled by passing through a condenser containing liquefied gas. The gases first pass through a cooling chamber 7, and then to the first stage 1 of the turbine, that part of the motive fluid comprising water vapour being condensed at this stage and ejected through the outlet 10. In the second stage 2 of the turbine that part of the motive fluid comprising carbonic acid gas is condensed and liquefied carbonic acid is drawn off by way of an outlet 9. The remaining gases pass into the coils 11 of a condenser, in the lower part 4 of which liquefied gas is circulated by a liquefied gas producer 5. After leaving the coil 11, the exhaust (now condensed) passes to a pump 6 whence it is pumped to the upper chamber 4<1> of the condenser to cool the upper portion of the coil 11. The chamber 7 and turbine 2 are water-jacketed and placed in a common circulating system together with a pump 8.
Patent GB-812625-A (GB)
Title: Electric circuit breaker
IPC: H01H50/22
Filed: 1955-11-23
Abstract: 812,625. Protective cut-out arrangements; electromagnetic switches; thermal switches; contact members for switches. C.T. ELECTRICAL CONTROLS Ltd. Nov. 23, 1955 [Jan. 31, 1955], No. 13060/57. Divided out of 812,623. Class 38 (5). A circuit-breaking device comprises two pairs of contacts 18, 25 and 19, 26 to make and break a pair of circuits, the moving contacts 18, 19 being ganged for movement to the closed position by a solenoid 29 against the bias of a, spring 40, and overload responsive bimetallic elements 14, 15 in each circuit and adapted to actuate a switch 44 having contacts 53, 54 in series with the solenoid 29, the series circuit comprising the contacts 53, 54 and the solenoid 29 being connected between one of the contacts of each of the circuits. In the device shown, the solenoid 29 acts on an armature 30 connected by a plate 31 to a bar 22 carrying the moving contacts 18, 19, the end 33 of the plate 31 sliding between the forked ends of a rod 23 carrying the spring 40. The bimetallic strips are fixed to terminals 16, 17, have their free ends connected by flexible conductors 20, 21 to the moving contacts 18, 19 and carry a totalizing bar 41. The switch 44 comprises two forked plates 43, 51 interconnected by a tension spring 58 and pivoted in grooves formed in a support 46. The plate 51 carries the moving contact 53 which is opened with a snap-action when the centre of the totalizing bar 41 acting through a projecting tongue 42 of the plate 43 moves the end of the plate 43 and the spring 58 overcentre with respect to the grooves in the support 46. A return spring 48 is interposed between projections 49, 50 on the plate 43 and a frame member 47. The contact-carrying bar 22 is slidable on the rod 23 and has a centrally disposed cavity in which a flat plate 38 and a curved spring plate 39 are disposed between the bar 22 and the inclined edge 36 of the end 33 of the plate 31. This arrangement causes the bar 22 to be tiled in a clockwise direction as it is initially moved and then as the contacts engage to turn slightly in the anticlockwise direction so that a wiping action is obtained at the contacts. The circuit-breaking device may be used in the power system of Specification 812,623. Specifications 812,622, 812,624 and 812,626 also are referred to.
Patent GB-728361-A (GB)
Title: Road vehicle variable-speed power transmission mechanisms
IPC: F16H47/08
Filed: 1952-05-23
Abstract: 728,361. Change-speed gear. AUTO TRANSMISSIONS, Ltd., and NORMANVILLE, E. J. DE. May 15, 1953 [May 23, 1952], No. 13098/52. Class 80 (2). A three-speed planetary gear, including a one-way clutch u controlled by a brake t, and used behind a fluid coupling or torque-converter a on a vehicle, is adapted for hydrodynamic braking in the converter by engaging simultaneously reverse and second speeds, which condition also locks the gear input shaft c against transmission of forward drive torque when at rest, preventing idle-drag, and locks the output shaft h against reverse rotation, thus preventing roll-back of a vehicle on an upgrade. The output shaft c of the fluid coupling or converter is integral with a sun d of a rear train which acts alone for first and reverse by braking respectively at p, k a second sun e and ring j, the intermeshed planets of that train being mounted on an output carrier g, attached also to a free ring m of a front simple train, the planet-carrier e of which is fast to the rear reaction sun e. For second speed, the sun e is allowed controlled forward motion by braking the free sun q of the front train with brakes w and t, the former acting directly, the latter through the oneway clutch u. Direct-drive top is by releasing only the brake wand clutching the sun q to the fluid-driven shaft c at v, x. Hydrodynamic braking is by releasing the direct - drive clutch and applying the brake t and reverse brake k together to produce opposed engine and vehicle drive effects on the fluid coupling or converter. The direct-drive clutch x, v is engaged by hydraulic plungers y against springs z.
Patent GB-1088480-A (GB)
Title: A printed circuit card mounting assembly
IPC: H05K7/14
Filed: 1966-03-25
Abstract: 1,088,480. Mounting electrical equipment. SPERRY RAND CORPORATION. March 25, 1966 [April 13, 1965], No. 13209/66. Heading H1R. In a mounting assembly for a plurality of printed circuit boards of the kind in which opposite side edges of each board are received in grooves in a pair of guide members disposed in spaced apart parallel planes, each guide member 26 is formed as a grid of lightweight material, such as synthetic plastics material, each grooved section 28 thereof alternating with a space 30 to permit the passage of cooling air through the assembly. At one end of guide members 26 the grooves 28 open into channels 34 which receive retaining bars (not shown) in a cabinet, and the other end of members 26 is provided with integral projections 38 which engage recesses in the cabinet. Each printed circuit board (14, Fig. 4, not shown) is provided with a spacer member (10) having a longitudinal slot which receives the front edge of the board, and apertures (16) through which test probes may be inserted to contact terminal areas (22) of the printed wiring on the board. A pair of projecting lugs (24) on the spacer member (10) facilitate removal of the boards from the assembly, and the spacer members (10) of adjacent boards are closely abutted to prevent the escape of cooling air. Near the rear edge of each board, rows of terminals (40) co-operate with plug-in connectors.
Patent GB-132101-A (GB)
IPC: H01Q1/48
Abstract: 132,101. Latour, M. Oct.. 18, 1917, [Convention date]. Aerials and like radiating and receiving conductors. -An aerial current is divided in any desired proportion between two or more earth connexions by inserting inductances or capacities in the various connexions, by tapping the aerial inductance at different points, or by placing coils. inductively coupled, in the earth connexions. In the arrangement shown in Fig. 3, the opposed windings of a coil 8 are placed in the earth connexions 5 and 6, while the opposed windings of a coil 7 are placed in the earth connexion 4 and the common part of the earth connexions 5 and 6. When two earth connexions are employed, the second winding of the coil 7 is placed in the earth connexion 5. In the modification shown in Fig. 4, the earth connexions 5 and 6 are connected to intermediate points of the aerial inductance 7. In the modification shown in Fig. 5, inductances 7, 8, and 9 are placed in the earth connexions 4, 5, and 6, and a common tuning inductance may be inserted in the aerial. In a further modification, the inductances 7, 8, and 9 are replaced by capacities.