baber/WOPTO huggingface dataset:
Patent GB-838634-A (GB)
Title: Improvements to television equipments
IPC: H04N5/268
Filed: 1958-03-10
Abstract: 838,634. Television. SOC. NOUVELLE DE L'OUTILLAGE R.B.V. ET DE LA RADIOINDUSTRIE. March 10, 1958 [March 11, 1957], No. 7678/58. Drawings to Specification. Class 40 (3). A switching unit for television channels is arranged to substitute one channel for another for an adjustable predetermined time interval and at an externally controlled time, the switchover operation at the beginning of the interval and the switch-back operation at the termination of the interval each being effected automatically during a frame blanking interval when no picture information occurs. The invention is described as applied to the switching unit described in Specification 806,636 where each of a plurality of channels is associated with a different stage of a counter and a desired channel is selected by a switching circuit which conditions the counter to step to the appropriate stage and stop. The counter is stepped by line synchronizing pulses which are gated during the frame blanking interval and the operation proceeds on a cyclic basis with the counter being reset and re-stepped to select the desired channel during each frame interval. If the counter is conditioned simultaneously at two stages, the counter steps to and stops at the stage which is of lower order. This feature is utilized in carrying out the invention by arranging that the channel which is to be substituted for the predetermined interval is allocated to the first stage of the counter. The procedure then merely involves operating the switching unit in the normal manner as described in Specification 806,636 to select amongst the channels connected to stage 2 and those of higher order, the substitution of the stage 1 channel when desired being effected by conditioning stage 1 for the desired predetermined interval without disturbing the conditioning of the stage for the selected channel. On the next operation of the counter, during the immediately following frame interval, the stage 1 channel is substituted and remains in operation until the termination of the chosen interval when, during the next following frame interval, the counter reverts to the stage for the previously selected channel. The conditioning of the stage involves the closure of a contact and the Specification describes a circuit, Fig. 3 (not shown), which is actuated by a push-button switch and thereafter operates in response to frame synchronizing pulses to energize a relay controlling the contact for the period of either one, two or four frames as determined by the setting of a counter. It is stated that the invention may also be embodied in the switching unit described in Specification 787,425.
Patent GB-398518-A (GB)
Title: Improvements in regulator valve apparatus for locomotive and like engines
IPC: F01B25/00
Filed: 1932-03-15
Abstract: 398,518. Locomotive regulators. SUPERHEATER CO., Ltd. and BOYES, F. A., Bush House, Aldwych, London. March 15, 1932, No. 7704. [Class 135.] A locomotive regulator has one or more lift valves for shutting off steam from the engine interconnected with an additional valve whereby the supply may be regulated while the lift valves are maintained in their fully open position. In the form, shown in Fig. 1, a single lift valve 5 carrying a pilot valve 6 is used, but a modification is described employing two main valves and a pilot valve co-operating with a fixed seat. The pilot valve spindle works in guide sockets in the casing and cover and is provided with webs 7 to guide the main valve 5 which is furnished with a ported tubular stem 8. The valves 5, 6 are operated by arms on a rock shaft 10 engaging between collars 12, 13 on the spindle of the valve 6 so that the valve 6 is first opened and afterwards. when the collar 12 engages the plate 14, the valve 5 is opened. The additional valve 17 is in the form of a butterfly valve having unequal wings so the fluid flow tends to move the valve to its fully open position resting against a stop 19. The valve 17 is mounted on a spindle 16 provided with an external crank arm 21 connected bv a link 24 to a floating lever 22 coupled by a link 23 to an arm 20 on the spindle 10. The regulator lever is connected by a link 25 to the floating lever. From the closed position, shown in Fig. 8, a movement of the link 25 towards the right first opens the pilot valve 6 to admit steam to the space between the valves 5, 17 to balance the valve 5. Continued movement in the same direction moves both valves 5, 6 to their fully open positions in contact with fixed stops. A movement of the rod 25 in the reverse direction now permits the unbalanced pressure on the valve 17 to move it towards its open position, the same force being transmitted through the linkage system to maintain the valves 5, 6 in their open position. A continued movement in the same direction first moves the valve 17 to its fully open position and afterwards closes the valves 5, 6. In the form in which the pilot valve co-operates with a fixed seat, this valve may be used as a drifting valve in which case a pipe connection to the cylinder steam chest is made from the space between the valves 5, 17. When two or more outlets are provided each of them is fitted with a butterfly valve and the valves are coupled together so as to act in unison. Specification 382,642 is referred to.
Patent GB-434690-A (GB)
Title: A closure for bottles or containers for liquid
IPC: B43L25/02
Filed: 1934-02-06
Abstract: 434,690. Dispensing liquids. LLEWELLYN, J. B., 4, Bonaparte Mansions, Westbourne Grove, Notting Hill, London. Feb. 6, 1934, No. 7709 /35. Divided out of 434,658. [Class 102 (ii)] [See also Group XV] In a device for effecting a removal of the liquid contents of a bottle or container by increments into a well by compressing the air above the liquid in the bottle &c. by means of a flexible diaphragm, the latter is moulded or otherwise preformed so as thereby to be position - retaining at each limit of movement. The well 4 is centrally mounted in the diaphragm 6, which is of preformed conical shape and is held fluid-tightly to the neck 2 of the bottle by means of a cap 8, which may be screw-threaded to engage a corresponding thread on the neck 2, or may be attached to the neck by turning over the free end of the downwardlydepending portion of the cap. Upon depressing the well 4 and the diaphragm 6, which may be done by simple manual pressure, ink or other liquid is forced up the tube 12 into the well 4 and remains therein until the well 4 is raised again, when it flows back into the bottle. A valve washer in the well with apertures offset relatively to the inlet tube 12 may be provided to prevent splashing of the liquid ; alternatively, the tube 12 may communicate with an aperture in the side wall of the well. The initial downward movement of the diaphragm may be obtained by means of projections 24 which engage therewith and are carried by a second outer cap 14, which screws on to the fixed cap 8. Owing to the preformed shape of the diaphragm, the final part of the downward movement takes place automatically. The well may be formed of synthetic resin or both the well and the diaphragm may be of rubber. The diaphragm may be integral with the well or separate and secured thereto, in which case it may be formed of thin metal. Specification 434,658 is referred to. According to the Provisional Specification, the bottle may be provided with a cap holding the integral diaphragm and well fixed in the bottle neck, and the cap is formed with an aperture through which the well projects. A limited movement of the well and the cap is permitted, whereby ink may be forced into the well, and the latter is held in its depressed position by providing it with a roughened surface which engages the edge of the aperture in the cap. In a further modification, the diaphragm is in the form of an annulus, the outer edge of which is fixed to the bottle neck by the cap while the inner edge engages a groove in the wall of the well which is integral with the cap. A screw in the cap is adapted to project downwards and engage with the surface of the resilient diaphragm, so that as the screw is rotated the diaphragm is depressed. The well may then be eccentrically disposed relative to the axis of the bottle, and the operating screw may be large enough to act as a stopper to the well, which is then screw-threaded.
Patent GB-755872-A (GB)
Title: Improvements relating to the welding of a boss to a container
IPC: B23K9/035
Filed: 1954-03-18
Abstract: 755,872. Welding by fusion. LOUVROIL MONTBARD AUINOYE. March 18, 1954 [March 19, 1953], No. 7891/54. Class 83 (4). A backing device supporting the weld be. tween a boss having a small orifice and a container and engaging the interior of the boss and the container is withdrawn through the orifice after the weld is completed. The device is placed in position before or after the equal. torial weld of the container is made. An arcuate refractory backing strip 1, Fig. 1, supporting the weld S and engaging the interior surfaces of the container B and the boss E is carried by pivoted links 2, 3 urged to closed position by a spring 5. The links 2, 3 open out when the device is withdrawn through the orifice. As shown in Fig. 3, the device comprises a disc 6 in one or more pieces of refractory material held by a clamp 7 and positioned before the equatorial weld of the container B is made. The disc 6 is crushed prior to removal. The backing device may consist of an adhesive strip of glass silk which adheres to the inner surfaces of the boss and container. Fig. 6 shows a device consisting of a backing strip 10 supported by a deformable braided copper cable 11. A backing of refractory material 15, Fig. 7, is supported in a groove in a deformable metal disc 12 which can be removed through the orifice. The bucking device may comprise an inflatable bladder 17, Fig. 9, which presses powdered flux 16 against the weld. The container is inverted before inflation of the bladder.
Patent GB-819390-A (GB)
Title: Welded joint for steel tubes
IPC: F16L13/02
Filed: 1957-03-11
Abstract: 819,390. Pipe joints. SOC. DES USINES A. TUBES DE LA SARRE. March 11, 1957 [March 9, 1956], No. 7901/57. Class 99(1). [Also in Group XXII] A metal ring 2 welded at 6 on to and at a distance from the end of a tube 1 abuts against the outer edge of a socket 3 when the tube is fully inserted into the socket, and an annular welding groove 5 is provided between the end of the socket and the end of the ring. The groove is positioned substantially mid-way between the end of the tube 1 and the welded end of the ring 2. As shown in Fig. 1, the ring and the socket are bevelled to form a V-shaped groove, and an annular space 7 allows gases given off during the welding process to escape to the inside of the pipes ; a protective film externally of the tube 1 and internally of the socket is forced, during welding, towards the weld 6 and the inner end of the socket to promote fluid-tightness of the joint. To obtain a joint between divergent pipes, the end of the socket and/or the ring may be cut at an angle. In modifications, (a) the end of the socket or ring is flanged, and (b) the ring 2 which is of a diameter equal to an enlarged diameter portion of the socket 3 is provided with a screw-threaded hole to allow filling of the space 10 with heatinsulating material.
Patent GB-453777-A (GB)
Title: Improvements relating to the transmission of signals to railroad vehicles
IPC: B61L3/22
Filed: 1935-03-15
Abstract: 453,777. Railway signalling systems. SOC. D'ELECTRICITE MORS, 16, Rue Lafayette, Paris. March 15, 1935, Nos. 8044, 8045, and 8046. Convention dates, March 15, 1934, Nov. 29, 1934, and March 4, 1935. [Class 105] Code current applied to the track rails in accordance with the state of ahead track sections actuates receiver apparatus on the locomotive to give a rhythmic signal repeating the actual code. The signal may be given by a glow-discharge lamp 62, Fig. 2, the rhythmic flashes of which may be recorded, through a filter 65, on a travelling band of photographic film 68 ; the visual flashes are seen through a filter 64. The filters 64, 65 are such as to prevent external light reaching the film 68. The signal may be given by a telephone on the driver's ear or by a vibrator under his fingers. The code current is provided by a pendulum device 2 operating contacts during its swings to either side whereby current from an alternating current generator G is periodically applied to a transformer FA and thereby impressed on the track circuit A, different codes being applied according as the relays NB, NC of the ahead sections B, C close or open their contacts 30, 29, 31. During a swing to the right a pendulum contact 13<a> engages and thereafter moves a spring 15<a> which however still co-operates with its contact spring 18<a> until this last spring 18a is stopped by an abutment 19<a> ; thus the contact 13<a>-15<a>-18<a> is closed during a certain part of the outward swing to the right and also during the corresponding return inward movement. Similar contacts 13b, 13c, 13d operate in a similar manner but at different phases. A contact 4 engages a contact spring 6 at the limit of the right-hand swing. With both ahead sections B, C free the contacts 30, 31 are closed and code current is applied by all the contacts 13<a>.. 13d so that eight pulses per complete oscillation are given. If the distant section C is occupied then the contact 31 is open and only the contacts 13<b>, 13d are effective so that four pulses per complete oscillation are given. If the near section B is occupied then the contact 30 is open and the contact 29 is closed so that only the end contact 4-6 is effective thus giving one pulse per complete oscillation. The pendulum is maintained in oscillation by discharging a condenser c through-a winding 12 acting on a magnet 1 of the pendulum when the pendulum closes an end contact 8-9. The condenser is charged to an amount determined by the duration of a transitional contact 20-24-23.
Patent GB-1389394-A (GB)
Title: Digital servo systems
IPC: G05B19/33
Filed: 1973-02-19
Abstract: 1389394 D/A converters NIPPON ELECTRIC CO Ltd 19 Feb 1973 [19 Feb 1972] 8069/73 Heading G4H [Also in Division G3] An D/A converter for providing an A.C. signal Pv at Tf Tg is supplied with input A.C. at Td and Te and digital binary coded bits at Ty, Tz, the receipt of a "1" bit at either terminal Ty or Tz causing a corresponding triac TR1, TR2 to be switched on via firing circuits 41 or 42 to connect a corresponding primary of transformers T 2  or T 3  across the A.C. input, the secondaries of all the transformers T 1 -T 3  being series connected to provide the required output Pv.
Patent GB-1189653-A (GB)
Title: Dyeing Systems.
Inventor: FREER JOSEPH JACK
IPC: D06B5/00
Filed: 1966-02-24
Abstract: 1,189,653. Sampling dyed goods. SAMUEL PEGG & SON Ltd. 23 May, 1967 [24 Feb., 1966], No. 8080/66. Heading B1X. [Also in Division Dl] A method of sampling goods being dyed in a high temperature dyeing installation of the kind in which dye liquor is circulated at high temperature and under pressure in a closed circuit which includes kier 1 containing goods to be dyed, and impeller pump 4, comprises passing dye liquor from the dyeing installation at a measured constant rate of flow and at the concentration and temperature of the liquor in kier 1 through a sample of the goods disposed in a sampling vessel 14 connected to the installation, the sample being of predetermined form in relation to the flow of liquor through it so that the sample is dyed under the same or comparable conditions as the goods in kier 1, and removing the sample from vessel 14 for examination. In the apparatus shown, when valve 19 is closed and valves 17, 18 open, dyeing liquor in the overflow pipe 6 from kier 1 flows through a bypass circuit which includes sampling vessel 14, then through expansion tank 9 and pump 4 back to the kier. When the sampling vessel 14 is isolated by closing valves 17, 18 the liquor may be drained from the sampling vessel through discharge valve 39 and a sample removed from the vessel for inspection. In the sampling vessel 14 (Fig. 4 not shown) each sample of fabric (32) is placed between peripheral frames (31). The samples project from the fronts of the frames so that they can be extracted individually as dyeing proceeds.
Patent GB-819450-A (GB)
Title: Process for the conversion of hydroperoxides of secondary alkyl aryls into phenols and ketones
IPC: C07C45/53
Filed: 1958-03-13
Abstract: Hydroperoxides of secondary alkyl aryl compounds are converted into phenols and ketones by decomposing the hydroperoxide with a catalytic amount of sulphur trioxide, viz. 0.001 to 1 per cent by weight (based on the total reaction mixture), the reaction being carried out in a polar organic solvent, such as a ketone.  The solvent may contain 0.2 to 1 per cent by weight of water.  In Example (2), metal di-isopropyl benzene dihydroperoxide is prepared by oxidation of meta di-isopropyl benzene with air; and the dihydroperoxide is crystallized out by adding toluene.  The dihydroperoxide is then dissolved in acetone having a water-content of 0.3 per cent.  A dilute solution of sulphur trioxide in acetone is also prepared.  The two solutions are separately pumped through two reactors connected in series.  The reactors are maintained at 58 DEG  C.; and the residence-time of the mixture therein is 10 minutes.  After adding magnesia to the effluent, it is filtered, and fractionally distilled to separate resorcinol.  Example (4) relates to the conversion of cumene hydroperoxide into phenol.  Specification 684,039 is referred to.
Patent GB-554545-A (GB)
Title: Joining beryllium to other metals by fusion particularly for x-ray apparatus
IPC: H01J35/18
Filed: 1942-06-16
Abstract: 554,545. Copper -containing solder alloys. BRITISH THOMSON - HOUSTON CO., Ltd., (General Electric Co.). June 16, 1942, No. 8247. Drawings to Specification. [Class 82 (i)] [Also in Groups XXII and XL] In soldering or brazing beryllium to steel or other metals such as in forming a vacuum-tight joint between a beryllium window and the body of an X-ray apparatus for examining chemical substances &c. an alloy is used of a metal which goes into solution relatively slowly with beryllium when both metals are in the molten state. The alloy has a melting point above 700C and preferably between 700C and 900C and may consist of equal parts of copper and silver and brazing may be effected in a hydrogen furnace with calcium chloride as a flux. Another alloy may consist of 80 per cent of copper, 15 per cent of nickel and 5 per cent of iron which has a melting point about 1200 C.
Patent GB-392711-A (GB)
Title: Process for improving the mechanical and magnetic properties of iron-nickel-beryllium alloys
IPC: C22C38/08
Filed: 1932-03-19
Abstract: In a process for improving the alloys described in the parent Specification, especially those containing up to 36 per cent of nickel, the alloys are quenched from 800-1200 DEG  C. and reheated to 700-850 DEG  C.  Alloys containing 12 per cent of chromium, 1 per cent of beryllium and 8 or 11 per cent of nickel and the remainder iron are referred to.  The treated alloys may be used for the manufacture of springs.
Patent GB-1063804-A (GB)
Title: Lead titanate zirconate ferroelectric ceramic material
IPC: C04B35/50
Filed: 1964-02-27
Abstract: A lead zirconate-titanate ferroelectric ceramic includes an amount not exceeding 5% by weight of thorium oxide and an amount not exceeding 0.3% by weight of chromium sesquioxide (Cr2O3).  The fundamental composition may comprise 46 mol. per cent of PbTiO3 and 54 mol. per cent of PbZrO3.  The components are mixed in a ball mill, pre-sintered at 900 DEG  C. for one hour and then pulverized. The powdered material is pressed and sintered at 1300 DEG  C. for one hour. Several examples of compositions are given.  A composition containing thoria as the sole additive is referred to.
Patent GB-1284066-A (GB)
Title: An alloy steel
IPC: C22C38/38
Filed: 1970-02-20
Abstract: 1284066 Non-magnetic steel JAPAN STEEL WORKS Ltd 20 Feb 1970 [3 Oct 1969] 8336/70 Heading C7A A non-magnetic steel alloy having a high 0À2% yield strength consists of by weight per cent: C 0À3-0À7 Si 0-1 Mn 5-25 Ni 0-10 Cr 3.5-10 Mo 1-3À5 (part of which, in excess of 1%, may be replaced by W) V 0À5-1À5 N 0-0.12 balance iron, the alloy being subjected to age hardening after cold working. Also present may be: Nb 0-0À5 Ti 0-0À5 P and S may be present as impurities, In an example the high yield strength is obtained by solution heat-treatment to 1,200‹C. followed by water cooling, 25% cold working and finally age hardening at 600‹C. for 5 hours. The alloy may be used in the construction of electric generators.
Patent GB-512848-A (GB)
Title: Arrangement on footwear, applicable to sporting use
IPC: A43B5/16
Filed: 1938-03-18
Abstract: 512,848. Skates. OMSTED, A., and SMAALAND S. March 18, 1938, No. 8408. Convention date, March 20, 1937. ['Class 132 (i)] [Also in Group VII] The upper of a skating boot is extended inwards on both sides under the arch of the foot and connected to. gether by a flexible par 12 which, when the boot. is fastened, will support the inner side of the metatarsus. The boot sole is in two separate portions, one, 14, corresponding to the foot-plate and the other, 13, to the heel-plate of the skate.
Patent GB-766241-A (GB)
Title: Improvements in or relating to coaxial-pair electric cables
IPC: H01B11/18
Filed: 1955-03-23
Abstract: 766,241. Air-space cables. PIRELLI SOC. PER AZIONI. March 23, 1955 [March 24, 1954; March 25, 1954], No. 8439/55. Class 36. The inner conductor 2 of a coaxial cable is covered with a thin layer 3 of low permittivity insulation and is spaced from the outer conductor 1 by a single helically extending radial rib 4 of insulating material and of the minimum dimensions necessary to maintain the spacing. The rib 4 may be formed by extrusion together with the layer 3, the straight rib thus obtained being subsequently formed into a helix. Alter. natively, a helically wound rib or cord may be applied to the layer 3 which may comprise a winding of one or more tapes. A longitudinallyextending rib attached to the layer 3 may be deformed into helical shape by permanent torsion of the insulated conductor 5 (Fig. 3), which is drawn from a bobbin 6 and around pulleys 13, 14 by a capstan 7. The pulleys 13 rotate bodily with a cage 8 housing bobbin 6, causing the rib to assume a helical form. The outer conductor may be applied by a machine located between pulleys 14 and capstan 7. In an alternative arrangement the insulated conductor coming from an extrusion machine is led around capstan 7, pulleys 14 and 13 to bobbin 6 which is rotated about its own axis to act as a take-up bobbin.