baber/WOPTO huggingface dataset:
Patent GB-572385-A (GB)
Title: Improvements in the production of pre-stressed reinforced concrete sleepers and similar beams
IPC: B28B23/06
Filed: 1943-04-08
Abstract: 572,385. Moulding pre-stressed reinforced concrete sleepers, beams, &c. DOWSETT ENGINEERING CONSTRUCTION, Ltd., and BARBER, R. S. V. April 8, 1943, No. 5661. [Class 87 (ii)] A group of long reinforcing wires is stretched above a production line, and moulds, which run on a track in the line, are assembled in series around the wires and filled with concrete. Fig. 1 is a plan of part of an arrangement in which four groups of wires 18, in two pairs of groups, are stretched above tracks 16 having spaced mould-supporting rollers 17. Each mould comprises an open-ended trough 22 and end plates 23 which are slotted for the reception of the wires (see Specification 572,387). In operation, the empty troughs are fed in laterally in pairs along a runway 19 to a turntable 20 where they are turned into alignment with the production lines A, B. An elevator 21 then raises them to the level of the lines A, B, the end plates are bolted into position, bolt-pins are placed in position, and the completed empty moulds are slid to the right along the wires until they rest on a platform 12 beneath a concrete-containing hopper 15. Concrete is then fed into the moulds, which are simultaneously vibrated by means of a vibratory platform 14. The filled moulds are then slid along the wires, to the right or left, to their setting and hardening stations, the production lines being thus filled with charged moulds. When the concrete has hardened, the moulds are brought over an elevator 28, the wires are severed, and the moulds are lowered on to a lateral discharge track 26, which is stated to be a power-driven conveyer. The reinforcing wires themselves may form the haulage means for pulling the moulds into position over the elevator 28, and as shown a winch 25 is coupled by cable 29 and T -head 30 to one of the moulds, whereby the whole series can be pulled along as a train. Details.-The moulds may have rollers or wheels or skids, or each mould may be supported on a trolley having rollers, wheels or skids. The wires may be cleaned or etched, and are tensioned between standards. The final tension may be applied to the wires after the moulds have been assembled therearound. The production lines may be arranged in tiers, as described in Specification 572,388. The hopper 15, the vibratory platform 14 and the elevators 21 and 28 may move laterally between the production lines A, B and the production lines C, D. Specifications 338,864, [Class 87 (ii)], 364,621, 393,576 and 572,390 also are referred to.
Patent GB-539948-A (GB)
Title: Improvements in or relating to carrier wave signalling systems
IPC: H04J1/04
Filed: 1940-03-29
Abstract: 539,948. Multiplex transmission. STANDARD TELEPHONES & CABLES, Ltd., FAIRLEY, F., and WALSH, R. March 29, 1940, No. 5686. Drawings to Specification. [Class 40 (iv)] In a system in which the frequency bands allotted to a number of telephone channels for transmission in the two directions form two groups in the spectrum with a gap between them, the gap is made wide enough to accommodate a broadcast channel comprising two frequency bands each of which transmits in the same direction as the adjacent group of telephone bands. The two bands may be transmitted on the same or different carriers, and may overlap to a limited extent. The broadcast channel may be carried by the same line as the telephone channels or by a parallel line, but in either case it is separated therefrom at repeater stations. The repeaters for the broadcast channel may comprise a single amplifier with directional switching or separate amplifiers for the two directions with a band-suppressor circuit switched from one path to the other to prevent singing. Specification 426,664, [Group XL], is referred to.
Patent GB-337706-A (GB)
IPC: C22F1/06
Filed: 1930-02-20
Abstract: 337,706. I. G. Farbenindustrie Akt.- Ges. March 11, 1929, [Convention date]. Physical or molecular structure, altering by mechanical treatment ; squirting ; rolling; forging; drawing. - The mechanical strength, especially the compression yield point of magnesium or its alloys is improved by hot working the metal e.g. by forging, rolling or drawing at any rate preferably the standard rate, which is defined as the maximum rate of working to give a good product without fracture, and then quenching immediately it issues from the working position, e.g. from extrusion dies, to a temperature at which modification of the size and orientation of the constituent crystals no longer occurs. The working rate may be reduced to less than half the standard rate, in which case normal cooling takes the place of definite quench. ing. The working temperature may vary from 200‹C. to 500‹C. Working at specified temperatures.-Examples of alloys are given that are extruded at temperatures of 450‹, 350‹, 300‹ and 200‹ C.
Patent GB-1495104-A (GB)
Title: Frequency stabilised microwave source
IPC: H03B9/14
Filed: 1976-02-13
Abstract: 1495104 Microwave diode oscillators COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 13 Feb 1976 [13 Feb 1975] 5721/76 Heading H3T [Also in Division H1] In a frequency stabilized microwave source including a diode oscillator 1, Fig. 2 mounted in a rectangular waveguide 2 defined between first and second blocks 3 and 5, a resonant cavity 6, Fig. 3, formed in the second block is coupled to the waveguide at a point 8 between the diode and an absorptive load 16 at one end of the waveguide, the resonant cavity includes a piston formed partially at 7 of the same material as the second block and partially at 9 of another material and the materials and their relative dispositions are so chosen that the length of the piston varies with change in temperature such as to vary the resonant frequency of the cavity to compensate for temperature drift in the oscillator frequency of the diode. As shown a Gunn diode 1 is mounted by a screw 4 on a good heat conductive block, such as brass having a high percentage of copper. The block 5 and piston port 7 are made of Invar Registered Trade Mark and the port 9 of the piston is of copper. In a modification the base portion (10, Fig. 4, not shown) is of copper to derive a better heat conduction.
Patent GB-444432-A (GB)
Title: Improvements relating to self-lubricating pulley blocks
IPC: B66D3/04
Filed: 1935-02-22
Abstract: 444,432. Pulley-blocks. FINDLAY & SONS, Ltd., W., and FINDLAY, R. P., 69, Side, Newcastle-on-Tyne. Feb. 22, 1935, No. 5762. [Class 78 (v)] [See also Group XXXIV] The invention relates to selflubricating cargo blocks of the kind wherein the sheave, or, in the case of multiple pulleys, each of them is provided with an internal groove forming a reservoir for lubricant. As shown, the spindle b has an axial passage b<1> always in communication with the lubricant reservoir a<1> in the sheave a through a lateral passage b<2> and a circumferential groove c<1> around the inner periphery of a bush c having radial apertures c<2> ; the axial passage is normally closed by a nipple b<3> containing a non-return valve through which the pulley can be forcibly charged with grease. A ball or roller suspension is provided as in Specification 443,833. Each cheek j is provided with a moulding j<1> which may be integral therewith or of a different metal or alloy. Specification 385,816 also is referred to.
Patent GB-1440970-A (GB)
Title: laminated magnetically soft material and method of making  same
IPC: H01F3/02
Filed: 1973-06-28
Abstract: 1440970 Laminated magnet cores; transformers C N WHETSTONE 28 June 1973 05781/76 Divided out of 1440968 Headings H1P and H1T The disclosure is contained in Specification 1,440,968, but the claims embrace a magnetically soft laminate comprising plural layers of magnetically soft material interleaved with and bonded together by continuous layers of semi-conductor material having electrical resistivity >10<SP>-4</SP> ohm cm; and to a method of making such a laminate by interleaving in a stack the plural magnetically soft layers with layers of a different material and heating to form continuous layers of a semi-conductor of the required resistivity bonded with the interleaved, magnetic layers. Specification 1,440,969 is referred to.
Patent GB-1521026-A (GB)
Title: Lubricating compositions and methods utilizing hydroxy-thioethers
IPC: C10N30/10
Filed: 1977-02-11
Abstract: 1521026 Transmission or diesel lubricant containing a hydroxy thioether LUBRIZOL CORP 11  Feb 1977 [19 Feb 1976] 05787/77 Heading C5E A transmission or railroad diesel lubricating composition comprises a major amount of a lubricating oil; a minor amount, sufficient to improve the oxidative stability of the lubricating composition, of one or more additives of the formula wherein R is a hydrocarbon-based (as herein defined) group containing up to 30 carbon atoms and having a valence of m + q; each R' is independently selected from hydrogen and a hydrocarbon-based (as herein defined) group of up to 20 carbon atoms; x and y are each independently an integer of from 2 to 5; z is 0 or an integer of from 1 to 5; q is 0 or an integer of from 1 to 4; and m is an integer of from 1 to 5 with the proviso that the sum of m + q is from 1 to 6; and at least one dispersant. The dispersant may be high M.W. acylated nitrogen-based, ester-based, Mannich-based or hydrocarbylamine-based or interpolymeric or a mixture thereof.
Patent GB-145377-A (GB)
Title: Improvements in selecting devices for automatic telephone systems
IPC: H01H67/06
Filed: 1920-02-26
Abstract: 145,377. Siemens Bros. & Co., Petithory, E. A., and Collyer, J. E. Feb. 26, 1920. Automatic exchange selectors.-An electromagnetically-operated cam device clutches one out of several sets of wipers to a shaft which is then rotated to carry the selected wipers over a row of terminals. Each set of wipers is mounted on a block 11 carried by a frame 8, which is normally loose on the shaft 1 but can be clutched to it by the leftward movement of a slider 23, which brings a lug 29 into a notch 30 in a flange 31 fixed to the shaft. Only one set of wipers can be clutched at a time, the choice being effected by the setting of a spindle 5 carrying cams 6, 7, &c., which operate rocker-bars 33 controlling the spring-urged sliders 23. The spindles 5, 1 are rotated in turn by electro-magnetic ratchet mechanism, and the selector is eventually restored by moving these spindles forward again until they reach their normal positions. Each set of wipers may consist of three pairs, such as 21, 22, Fig. 4, one wiper of each pair engaging individual terminals 15 while the other wipes over a continuous contact strip 18. The two wipers of a pair are connected through springs 28 and the frame 48 in which they are pivoted.
Patent GB-1383831-A (GB)
Title: Yarn joining assembly for automatic yarn piecing apparatus
IPC: D01H15/013
Filed: 1972-02-08
Abstract: 1383831 Yarn piecing apparatus MAREMONT CORP 8 Feb 1972 [5 March 1971] 5828/72 Heading D1D An automatic yarn 'piecing apparatus includes a yarn joining assembly having a frame movable on a pivoted support arm towards and away from a textile drafting means and carrying a yarn joining roller, a yarn clamp, a yarn cutter and a yarn tension control arm. As shown, in a ring spinning machine, a joining assembly 58, Fig. 4, comprises a frame 82 on a pivoted support arm 60, the frame 82 carrying yarn joining roller 84 biased forwardly on slide rod 112 by spring arm 90", clamp jaws 86, 88, cutter 94 and tension control arm 98. Yarn joining commences when the piecing apparatus extends a yarn (not shown) from a winding 'bobbin to intersect the path of the assembly, which is then pivoted about shaft 62 so that the extended yarn is laid over roller 84, jaw 88 and arm 98 lying between the roller and jaw. During further assembly movement, follower 150 contacts fixed cam 156 to rotate lever 104, yoke 142 and shaft 134 and thus move jaw 86 downwardly to clamp the yarn against jaw 88 and to cut off excess yarn on cutter 94. Follower 148 is also moved by cam 156 to raise arm 98 and thereby the clamped yarn. The jaws are maintained clamped by a detent on an arm supporting jaw 86, a detent notch receiving the upper end of spring arm 90". As assembly 58 moves beyond cam 156 towards drafting rollers 14, Fig. 5, the clamped yarn is twisted by rotation of the bobbin and thereby tensioned, which lowers arm 98 against spring bias. The abutment of roller 84 with one of drafting rollers 14 causes the roller 84 to move rearward with rod 112 in frame 82 against the bias of spring arm 90", thus deflecting the arm out of engagement with the detent to allow jaw 86 to pivot upwards under spring bias to release the yarn. The released twisting yarn then interconnects with the broken yarn end projecting from rollers 14. To ensure that the clamped yarn is aligned with the broken yarn end, arm 60 supporting frame 82 is splined on shaft 62 and the arm and frame are guided axially along the shaft by cam means.
Patent GB-633543-A (GB)
Title: Improvements in or relating to protective arrangements for electric circuits
IPC: H01H71/12
Filed: 1948-02-26
Abstract: 633,543. Cut-outs. GENERAL ELECTRIC CO., Ltd., and KEELEY, F. J. Feb. 26, 1948, No. 5829. [Class 38 (i)] [Also in Group XXXVII] A fuse device, arranged to trip a circuitbreaker (see Group XXXVII) when it fuses, has an arcing gap arranged in parallel with the fuse link 5. The latter is stretched between a fixed terminal 7, insulated from the metal casing 6, and a spring-plunger 13 connected to casing 6. The terminal 7 has a frusto-conical part 20 arranged parallel with casing 6 so as to form the arcing gap 21. When the link fuses, the plunger 13 operates the circuit-breaker trip mechanism, the short-circuit current meanwhile being carried by the gap 21.
Patent GB-654182-A (GB)
Title: Improvements in and relating to electric control systems
IPC: H02P9/34
Filed: 1948-02-26
Abstract: 654,182. Automatic voltage, speed, control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 26, 1948, No. 5844. Convention date, Sept. 28, 1942. [Class 38 (iv)] [Also in Group XL (c)] In a system wherein a D.C. motor drives an alternator, either the speed of the motor or the voltage of the alternator is controlled by applying the alternator output to a direct coupled amplifier including two reversely connected valves, the output of the amplifier controlling either the motor field or the alternator field, either by a saturable reactor or by a carbon pile regulator. Voltage.-The output of the alternator 1 is applied by a transformer 16 to a direct coupled amplifier in which two reversely connected valves 17, 18 conduct on opposite half cycles (see Group XL (c)). The input voltage to valve 17, tapped off potentiometer 31, is compared with the voltage across the glow discharge device 27, amplified and used to control a saturable reactor 12 connected in series with a rectifier 10 supplying the control field 9 of the alternator. In a modification, Fig. 3 (not shown), the output of the amplifier controls a further valve, the anode circuit of which includes a heater coil acting on a thermally expansible rod to vary a carbon pile in series with the alternator field, which is excited from an auxiliary D.C. source. Speed.-The field of the driving motor is similarly controlled instead of the field of the alternator.
Patent GB-1448332-A (GB)
Title: Light-sensitive compoudns and photoresists containing the same
IPC: C09D163/00
Filed: 1974-02-08
Abstract: 1448332 Photosensitive synthetic resins MULLARD Ltd 8 Feb 1974 05846/74 Addition to 1330263 Heading C3B [Also in Division G2] A light-sensitive polymer (P) is (III) or a 1,2-propylene oxide, p-azidobenzoxy, or pnitrobenzoxy derivative thereof, where R<SP>1</SP> is hydroxypropylene, or the nucleus of a dihydric phenol free from functional groups other than p-azido benzoxy, p-nitrobenzoxy, or phenolic OH, n is 0-3, one X is N 3  and one X is NO 2 , or, in a heterogeneous M.W. distribution of such polymers, X in # 1 polymer is N 3  and X in #1 other polymer is NO 2 . (P) may be made by reacting, in a solvent, epoxy resin (I) where R is hydroxypropylene or the nucleus of a dihydric phenol free from functional groups other than phenolic OH, with a mixture of pazidobenzoic acid, or esterifiable derivative thereof, and a p-nitrobenzoic acid optionally o- or m-substituted with a C 1-4  alkyl, or esterifiable derivative thereof; the reaction temperature may be, e.g. 130-200‹ C. (I) may be similar, and made similarly, to (I) in the parent Specification, and the modes of sensitization and application and the uses of (P) are similar to those of compound (II) of the parent Specification. In (III), R<SP>1</SP> may have #1 terminal pazidobenzoxy or p-nitrobenzoxy group as the result of the reaction of at least one phenolic OH with (1) epichlorohydrin and then with (2) the above mixture of acids.
Patent GB-1246019-A (GB)
Title: Exhaust gas conditioning apparatus for internal combustion engines
IPC: F01N3/04
Filed: 1969-02-04
Abstract: 1,246,019. Cleaning exhaust gases. ENVIROTECH CORP. 4 Feb., 1969 [23 Feb., 1968], No. 5904/69. Heading B1R. In apparatus for treating exhaust gases from an I.C. engine the gases are led by a pipe 18 into a contact chamber 60 where they are sprayed with water countercurrently from a nozzle 38 and then pass via a nozzle 62 into a dilution chamber 64, the nozzle being so arranged that a flow of air to dilute the exhaust gases is induced. As shown in Fig. 3 the inlet end of the chamber 64 is flared. The apparatus may be arranged so that the inlet to the chamber 64 is in the path of a stream of air directed onto the engine for cooling or air may be supplied to the inlet of the chamber 64 under pressure by a blower. Water is fed to the nozzle 38 through a pipe 34 from a reservoir by a pump 28 operated in a manner described in Specification 1,168,584 to relate the amount of water sprayed into the contact chamber to the volume and temperature of the gases to be treated.
Patent GB-1158203-A (GB)
Title: Applicator with Assembly for Mixing Materials to be Applied.
Inventor: SCHWARTZMAN GILBERT
IPC: B65D47/24
Filed: 1967-02-08
Abstract: 1,158,203. Reservoir brushes. G. SCHWARTZMAN. 8 Feb., 1967 [31 Aug., 1966], No. 5927/67. Heading A4K. [Also in Division B8] An applicator of the reservoir brush type has a head 34 joined to a tubular portion 14 by outwardly resilient bellows 20 compressible to displace by means of a stem 32, a disc 46 separating a material B, e.g. powder, from a material A, e.g. a liquid. A disc 30 on the stem is displaced from its seating 26 to enable the contents A and B, when mixed, to be dispensed through apertures 36 in the head.
Patent GB-697593-A (GB)
Title: Improvements in coupling device
IPC: B21C1/14
Filed: 1952-03-06
Abstract: 697,593. Clutches. SCHUMAG SCHUMACHER METALLWERKE AKT. - GES. March 6, 1952 [March 24, 1951], No. 5932/52. Class 80 (ii). A device for clutching a toothed driving wheel 1 to a coaxially arranged rotat able disc 2, comprises a catch, carried on the disc shiftable parallel to the disc axis, and engageable with the teeth of the driv ing wheel, the catch con sisting of at least two rat chet teeth 3, 4 arrangec. side by side and movable independently of each other and having a pitch smaller or greater than, but not double, that of the teeth of the driving wheel. The driving wheel 1 is fast on a driving shaft S on which is rotatable the driven disc 2, the ratchet teeth 3, 4 being urged to engage the driving wheel by springs 5, 6 but being disengageable therefrom by a tongue 7, forming part of a bellcrank lever 8, which can be swung to lie in the path of projections 9, 10 on the ratchet teeth. The device has particular application to control members, such as cam discs, in machines for drawing metal rods and wires.
Patent GB-1353114-A (GB)
Title: Turbo-machinery
IPC: F01D5/22
Filed: 1972-02-09
Abstract: 1353114 Turbomachine blades GENERAL ELECTRIC CO 9 Feb 1972 [23 April 1971] 5936/72 Heading FIT To reduce vibration, adjacent turbine or compressor rotor blades are interconnected by sleeves 23 freely engaging over lugs 22 projecting from bosses 21 on the blade flanks. The ends of each sleeve 23 are cut back at 25 and the lugs 22 rounded at 24 to permit the blades to twist without developing transverse loads on the lugs and sleeves. The latter have the cross-section shown in Fig.4.
Patent GB-424378-A (GB)
Title: A process for the manufacture of articles of clothing, such as collars, cuffs, and the like
IPC: A41H33/00
Filed: 1934-02-23
Abstract: 424,378. Moulding and vulcanizing rubber. ROUGERIE, P., and BROUSSE, J., 31, Rue de Colombes, Asnieres, Seine, France. Feb. 23, 1934, No. 5950. Convention date, March 7, 1933. [Classes 70 and 87 (ii)] [See also Group VII] Rubber articles such as collars, cuffs, shirt fronts, &c. are made by forming a preliminary shape by casting compounded latex in a mould and drying it, partially vulcanizing this shape and then finally vulcanizing in a mould which gives the article its final shape. Both moulds may be engraved so that the article may have the appearance of linen fabric. The article may be finished by treatment with an alkali such as ammonia, washing in hot soap suds and rinsing followed by removal of burrs and, if desired, piercing of the surface in contact with the skin to allow the dispersion of sweat. A collar as shown, Fig. 1, is made by casting compounded latex in a mould, Fig. 2, which may be made of synthetic resin, drying the latex down, partially vulcanizing and completing vulcanization and shaping in a second mould, Fig. 3. The Specification as open to inspection under Sect. 91 describes also the making of the articles by cutting them from a rubber sheet, and subjecting them to a two stage vulcanization. This subject-matter does not appear in the Specification as accepted.
Patent GB-491382-A (GB)
Title: Improvements in or relating to electric oscillation generators
IPC: H03B5/10
Filed: 1937-03-01
Abstract: 491,382. Valve circuits. CLARK, H. A. M. March 1, 1937, No. 6061. [Class 40 (v)] In an oscillator circuit in which alternating current is used as the anode supply one or more rejector circuits tuned to unwanted har. monics are included in the anode circuit. The invention applied to a Hartley oscillator having two valves in parallel is shown, the tuned rejector circuit L2, C2, in the anode circuit removing the modulation frequency due to the second harmonic of the supply mains. Other rejector circuits tuned to other harmonics of the modulation frequency may be connected in series with the circuit shown or a simple inductance may be provided in addition to one or more rejector circuits.
Patent GB-268528-A (GB)
Title: Improved coilholder for wireless purposes
IPC: H01F27/00
Filed: 1926-03-04
Abstract: 268,528. Scammell, F. March 4, 1926. Wireless tuning- apparatus, adjustment devices for. - In coil-holders for radio receiving sets, the moving coil-plug P is driven from an operating rod R through a friction drive comprising a metal disc D fixedly attached to the plug P and gripped at its edge between two bushes B, B<1> on the rod R. The metal bush B<1> is fixed to the rod R and the metal bush B slides thereon and is adjustably pressed against the bush B<1> by nuts N, N<1>.
Patent GB-1024940-A (GB)
Title: Improvements in or relating to gimbal mounting arrangements
Inventor: RING RONALD HENRY
IPC: G01C23/00
Filed: 1964-02-13
Abstract: 1,024,940. Mounting for bearing recorder. S. G. BROWN Ltd and R. H. RING. Dec. 29,1964 [Feb. 13, 1964], No. 6123/64. Heading G1F. A gimbal mounted device for displaying a display element 3 comprises a gimbal ring 11 connected to the device below the display element 3, the display element having a transverse dimension greater than any transverse dimension of the portion of the device received through the gimbal ring. The device is illustrated for mounting a bearing repeater which comprises a bowl 2 for the repeater card or dial 3, a neck portion 6 and a lower portion 5. The gimbal ring 11 is pivoted to the neck portion at diametrically opposite points 12 and pivoted to a yoke 14 at pivots 13 on a diameter at right angles to pivots 12. The yoke 14 is mounted on the bulk head 15 by means of bracket 17.