baber/WOPTO huggingface dataset:
Patent GB-714958-A (GB)
Title: Improvements relating to voltage regulating apparatus of the electronic type
IPC: H03G11/00
Filed: 1952-04-07
Abstract: 714,958. Non-Unear circuits. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., and WALKER, A. H. B. Feb. 11, 1953 [April 7, 1952], No. 8822/52. Class 40 (6). [Also in Group XXXV] In a thermionic valve amplifier for automatic voltage control system (see Group XXXV) a condenser is connected between grid and anode of one of the valves so as to increase the time constant of the amplifier for small input signals, without increasing it for large signals. In one embodiment, Fig. 1, an error signal, detected at 2, is amplified by a triode V to control a device 3. The triode is so selected and biased by resistors 21, 7 that while for small input signals the valve is operating with a high mutual conductance, large signals drive the valve to cutoff, or into saturation. Hence for small signals only the condenser C between grid and anode, and the resistor R in series with the input have the effect of retarding the response of the valve to a variation in signal input by providing heavy differential negative feed back. In a second embodiment, Fig. 2 (not shown), a condenser is connected between grid and anode of the second triode of the double triode regulator disclosed in Specification 677,673, [Group XXXV].
Patent GB-766818-A (GB)
Title: A process and composition for increasing the harvest yield of grain and other seeds
Filed: 1954-03-26
Abstract: A composition for treating grain and seeds to increase the harvest yield contains a water-soluble hormone and a major amount relative thereto of a water-insoluble hormone derivative.  The weight of hormone plus derivative may be 0,02 per cent by weight of the composition, which may also contain about 99,9 per cent of a carrier, e.g. powdered talc or kaolin.  The composition may be mixed with grain and seeds prior to drilling.  About 10 g. of the composition may be used per k.g. of seed.  Between 1,0 and 3,0 m.g. of a -naphthyl acetic acid amide, 0,1 and 0,5 m.g. of a -naphthyl acetic acid, 0,5 and 2,0 m.g. of thiamin, 0,5 and 2,0 m.g. of ascobric acid and 1,0 and 4,0 m.g. of nicotinic acid may be used per k.g. of seed. A composition exemplified contains 0,018 per cent of a -naphthyl acetic acid amide 0,002 per cent of a -naphthyl acetic acid, 0,01 per cent of thiamin, 0,01 per cent of ascorbic acid, 0,02 per cent of nicotinic acid and 99,94 per cent of talc.
Patent GB-387167-A (GB)
Title: Process for the preparation of isocyanines containing ª‰-naphtho-quinoline nuclei
IPC: C09B23/04
Filed: 1931-08-12
Abstract: Iso-cyanines containing a b -naphthoquinoline nucleus are prepared by condensing an alkyl halide of a 2-halogenated b -naphthoquinoline with an alkyl halide of a heterocyclic nitrogen compound containing a reactive methyl group in the g -position.  The methyl iodide of 2-iodo-b -napthoquinoline is heated with lepidine ethiodide, alcohol and potassium hydroxide whereby 1 - methyl - 1<1> - ethyl - 5 : 6 - benz - iso - cyanine iodide is produced.  2-Iodo-b -naphthoquinoline methyl iodide is prepared by treating 1-methylorethyl b -naphthoquinolone with phosphorus pentachloride and oxychloride, and isolating the product by extracting the resulting mass with benzene after adding excess of caustic soda, and treating with concentrated hydrochloric acid.  The 2-chlor-b -naphthoquinoline hydrochloride which separates out is dissolved in water, the base liberated with ammonia and converted into the corresponding 2-iodo methiodide by heating in a sealed tube with methyl iodide.  Specification 369,946 is referred to.
Patent GB-1031763-A (GB)
Title: Welded rail grinding apparatus
IPC: E01B31/17
Filed: 1963-03-06
Abstract: 1,031,763. Grinding. ELEKTRO-THERMIT G.m.b.H. March 6, 1963 [March 13, 1962], No. 9007/63. Heading B3D. Welded rail grinding apparatus comprises a frame equipped with a rotatable grinding tool and with running and guide rollers adopted to co-operate with a rail whereby the frame may be moved on the rail, the grinding tool being adapted to be fed across the lower part of the rail head, the web and the upper part of the flange of an engaged rail by elevating means in combination with traversing means. A frame 1 has at each end rollers 2. The frame is positioned laterally of the rail by flanges 3 at one end of the rollers and guide rollers 4 adjustable to suit the width of the rail head. A grinding assembly 5 comprises a motor, a transmission 7 and a bracket 8 carrying a grinding-wheel 9 driven by the motor. The assembly is mounted on a slide 12 mounted in guides 6 on the frame for movement transversely of the frame. Vertical movement of the grinding-wheel is effected by raising or lowering one end of the frame 1 by varying the vertical position of one of the rollers 2 by a lever 10; a spring 14 compensates for the weight of the parts. Transverse movement of the grinding-wheel is effected by moving the slide 12 by a lever 11.
Patent GB-841006-A (GB)
Title: A device for controlling the supply of pneumatic pressure, and exhaust from pneumatic vehicle suspension springs
IPC: G05D16/18
Filed: 1958-03-21
Abstract: 841,006. Maintaining vehicle height constant. FABRICA ITALIANA MAGNETI MARELLI S.p.A. March 21, 1958 [April 4, 1957; July 20, 1957], No. 9096/58. Class 108(2). The lever 1 operating the valves 8, 10, controlling the admission and exhaust of pneumatic pressure respectively to and from a vehicle pneumatic suspension may be rendered ineffective at will by reducing the pneumatic pressure acting on a piston 12. The latter is connected to a rocker 3 the ends of which are linked to push rods 4, 5, which are adapted respectively to operate the valves 8, 10. The push rod 4 is hollow and open to atmosphere at i, and is open at its upper end. A chamber C containing the air acting on the piston 12 is connected to a chamber A on the high pressure side of the valve 8, by means of a conduit 11. When the valves 8, 10 are intended to be operated by the lever 1, the chamber A is connected by a cock (not shown) to a source of pneumatic pressure. The cock is also arranged to connect the chamber A at will to atmosphere. The distributor valve may operate in association with the vehicle door gear. In operation, when the vehicle static load is increased, the lever 1, connected to the axle, is deflected by sinking of the vehicle body to rotate the rocker 3 and open valve 8. Air from a source connected to chamber A passes through valve 8 and lifts valve 10 to pass to the suspension. On decrease of load, valve 10 is lifted and air passes through to a chamber 9 and thence via hollow push-rod 4 and port i to atmosphere. When the above-mentioned cock is set so as to connect the chamber C to atmosphere the rocker 3 is withdrawn from engagement from the lever 1 (Fig. 2) and changes of static load then have no effect on the valves 8, 10. Practical forms of the invention are described (Figs. 3-8, not shown). The push rods 4 and 5 and valves 8, 10, may be disposed coaxially (Figs. 7, 8).
Patent GB-127945-A (GB)
Title: Improvements in or relating to Artificial Hands.
Inventor: HOBBS EDWARD WALTER
IPC: A61F2/58
Filed: 1918-06-03
Abstract: 127,945. Hobbs, E. W. June 3, 1918. Limbs, artificial. - In a hand, the movable element for operating the grasping-parts has combined with it a locking-plate which slides on a rod, follows the movement of the said element, and is canted under the return thrust to bind on the rod and lock the element. Four rods A, B, C, D stand up from a plate E, the two inner rods B, C being of square cross-section, and the outer ones round. The rods B, C are arranged, so that their corners engage V-grooves in, and guide, a selector F having pivoted to it arms G<1>, G<2>. The outer rods A, D serves as guides for " closing " and " opening " sleeves H, J. A fifth and parallel rod M standing off from the others serves to guide a presserfoot comprising in one a plate N and a sleeve N'. The rods are connected at the top by a plate T. Beneath the presser-foot N is a locking-plate 0 sliding loosely on the rod M. A stud N<6> firm in the presser-foot N passes loosely through a hole in the locking-plate and prevents its rotation about the rod N. The head of a stud N<7>, also firm in the preseer-foot, engages under the locking-plate and limits its distance from the presserfoot. Loose washers P are arranged between these two parts. A forked reversing-lever K is pivoted in a bracket E<1> on the plate E. The closing- sleeve H is pivotally attached at its lower end to a rod Q leading to the hinged fingers or grasping-part to be moved. An operating-cord R is attached to the selector F, which is returned by a spring S. Upon pulling the cord with all the parts in the upper position, the selector F presses down the presser-foot N and the locking-plate, which moves without canting. Upon the article being grasped, the overhanging end O<2> of the locking-plate meets with resistance from the lug L<1> on the sleeve H, and the plate 0 is canted to grip its rod. The cord may then be released and the selector returned by its spring, other parts being held locked. Upon pulling on the cord again, the arm G<1> on the selector engages the lug on the sleeve .T and moves it down, a pin J<3> engaging the reversing- lever K. The cam-edge of this lever engages a lug N<4> on a part of the presser-foot which embraces the sleeve H loosely, and raises the presserfoot, the bolt N<7> raising the end of the plate O and uncanting it. The part K<3> of the lever K then engages a lug L<2> on the sleeve H and raises this sleeve to open the hand. Lost motion between the engagement of the lug N<4> and of the pin L<2> by the forked reversing-lever allows for the unlocking of the plate o.
Patent GB-688890-A (GB)
Title: Improvements in or relating to cross-bar selector switches
IPC: H01H67/26
Filed: 1950-02-03
Abstract: 688,890. Automatic exchange switches. STANDARD TELEPHONES & CABLES, Ltd. Feb. 3, 1950 [Feb. 10, 1949], No. 9226/52. Divided out of 688,835. Class 40 (iv). A cross-bar switch comprises contact sets in which corresponding springs in each row are cut from a single sheet of metal together with an integral multipling strip, the springs being bent near their junction to the multipling strip to extend in the direction of the corresponding contact wire. Metal blanks, Fig. 6, are stamped out in the shape shown, springs 7-10 being bent at the dotted lines, several sets being assembled on an insulating plate 4, Fig. 7. The switch operates as described in the parent Specification.
Patent GB-403702-A (GB)
Title: Improvements in or relating to collapsible display cases and supports
IPC: A47F3/12
Filed: 1932-03-31
Abstract: 403,702. Showcases. ANSELL, A., 64A, Uxbridge Road, Shepherd's Bush, London. March 31, 1932, No. 9252. [Class 52 (i).] A display cabinet comprises transparent members forming the sidewalls and shelves which are secured together and between channelled upper and lower members by interlocking male studs a' and female caps a<2> which engage in holes in the transparent members and in keyway openings in brackets c on the lugs a attached to the channelled members. Each male stud a<1> is provided with a projection which engages the keywayed slot in the lug, and rubber washers are interposed to prevent fracture of the glass. The channelled members at the front may be inclined and made double to accommodate sliding doors. The back shelf bracket may have a lip b' to prevent accidental slipping rearwards. Specifications 306,577, and 358,899 [Class 52 (i), Furniture, Fittings, &c. for], are referred to.
Patent GB-350608-A (GB)
Title: Welding rod
IPC: B23K35/32
Filed: 1930-03-22
Abstract: 350,608. Uniting by fusion. FORRESTER, H. J. C., 88, Chancery Lane, London.-(Stoody Co. ; Whittier, California, U.S.A.) March 22, 1930, No. 9279. [Class 83 (iv).] A welding-rod comprises a tubular container of low melting point containing in granular form a material which will not melt at the welding temperature. A container 1 of mild steel contains granular particles 2 of a substance of high melting point such as black diamonds, or tungsten carbide, the particles in the latter case being of sufficient size to prevent them readily melting in the operation. The rod is more particularly for use in a process as described in Specification 350,607.
Patent GB-1008014-A (GB)
Title: Method to heat metals for evaporation purposes and/or for diffusion
IPC: C23F4/02
Filed: 1963-03-08
Abstract: A metallic coating on a metallic base, particularly one in close proximity to an insulating member e.g. of glass, wood or plastic, such as produced by evaporation, galvanizing or electroplating, is heat treated to partially diffuse the coating into the base and then flash heated to evaporate off surplus coating to leave any desired thickness of coating by induced R.F. currents.  For example, magnetic relay contacts of 50% Ni-50% Fe alloy, comprising strips hermetically sealed in a glass tube filled with a protective atmosphere e.g. H2, He and/or N2, may be plated with a gold layer and then subjected to R.F. induction diffusion heating followed by R.F. flash heating to evaporate off surplus gold.
Patent GB-642542-A (GB)
Title: Improvements in or relating to long distance telephone exchange systems
Inventor: WRIGHT ESMOND PHILIP GOODWIN
IPC: H04M15/04
Filed: 1946-03-09
Abstract: 642,542. Exchange systems. STANDARD TELEPHONES & CABLES, Ltd. March 9, 1946, No. 9408/47. Divided out of 642,527. [Class 40 (iv)] An international call is set up automatically over a chain of exchanges, but in case of difficulty, an operator at the distant terminal exchange can be called in without the help of intermediate operators. At the terminal exchange, the call is set up by impulses of " x " frequency received by a device 2x, Magnet 31SM steps the selector S31, slow-torelease relay 2C being operated in parallel. The impulses are followed by hunting and 2H operates when a free outlet is found. If the operator is required a pulse of " y " frequency is transmitted to operate the discriminating relay 2K to light the calling lamp CL at an operator's position OP3. Discriminating relays are provided only in outlets leading to the associated national system and not in outlets leading to further international trunks. There are described arrangements at the calling exchange for transmitting the impulse of x frequency and for sending one short pulse of y frequency on operation of a forward transfer key.
Patent GB-600709-A (GB)
Title: Improvements in recoil buffers for guns
IPC: F41A25/18
Filed: 1944-05-17
Abstract: 600,709. Gun recoil apparatus. JONAS, F. S. W. May 17, 1944, No. 9422. [Class 92 (i)] A recoil cylinder F of annular cross-section surrounding the gun barrel x receives an annular piston 13 connected to the barrel at I by rods D extending through and parallel to the cylinder. The passage of liquid from one side of the piston to the other is controlled by tapered rods C fixed to the cylinder and passing through holes B' in the piston. The control rods C alternate with the piston-rods D and return springs E surround both sets of rods. The axis of the gun is preferably disposed in line with the axis of the elevating trunnions.
Patent GB-637631-A (GB)
Title: Carrying handles for use on attache cases, travelling bags, and like cases
IPC: A45C13/26
Filed: 1948-04-05
Abstract: 637,631. AttachÚ case &c. handles. CHENEY & SON, Ltd., C. W., and CHENEY, C. W. April 5, 1948, No. 9441. [Class 133] A handle 1 for an attachÚ case, trunk, travelling case or like case, the ends of which are connected to attachment brackets 9 by pivot pins 8, is formed of two approximately channel sections 3 and 4 fitting one within the other to form a closed structure, the terminations 5 of the inner section being engaged in outwardly turned terminations 6 of the outer section 4. The sections may be connected by means of clinched tongues provided at the terminations or alternatively they may be pressed into engagement by a planishing operation.
Patent GB-784977-A (GB)
Title: Improvements in or relating to the propulsion of water-craft
IPC: B63H11/00
Filed: 1956-03-27
Abstract: 784,977. Jet propulsion of water craft. NICHOL, R. H. March 27, 1956, No. 9497/56. Class 114. In a propulsion system for water craft in which a rearwardly directed jet 7 of water, produced by a centrifugal or other pump 4 powered, e.g. by an internal combustion engine 2, the pump delivers into a free-passage water duct extending longitudinally of the craft. The pump outlet tube 5 discharges into a conical nozzle member 6 the wider end of which receives the rearward ends of water ducts 9 disposed along the sides of the bottom of the boat and having inlets on each side of the prow. The pump draws water through pipes 10 branched from the ducts 9 close to their inlets and delivers a high speed jet into the nozzle 6, the jet inducing flow through the ducts 9.
Patent GB-586671-A (GB)
Title: Improvements in or relating to carbonising apparatus
IPC: C10B7/06
Filed: 1940-05-30
Abstract: 586,671. Carbonizing apparatus; cracking oil vapour. FRANCOIS, R. May 30, 1940, No. 9500. Convention date, May 30, 1939. [Classes 55(i) and 55 (ii)] In the continuous carbonization of solid carbonaceous material such as lignite shale, wood, or oil bearing matter, the material is fed from a hopper 18 on to a heated floor 5 along which it is moved by sets of scrapers 17 in staggered relationship mounted on an endless chain 14, this carbonized product dropping into a delivery trough 21. The distillates collect in a dome 24 divided by a vertical partition 25 open at the top over which they pass, and are freed from dust before discharge through an outlet 26 leading to conduits 27 heated in a flue 3 so that tarry products are cracked.
Patent GB-624609-A (GB)
Title: Improvements in or relating to the thermal treatment of manganese ores
IPC: C22B47/00
Filed: 1945-04-17
Abstract: <PICT:0624609/III/1> Manganese ores containing higher oxides are reduced to the manganous condition by heating a finely divided mixture with carbon in the proportions of at least 0.9 of an atomic weight of carbon for each atomic weight of manganese in the ore at 850-1050 DEG  C. for about 15 minutes by feeding the mixture into an elongated, inclined, rotating cylindrical conduit 1, the upper portion 94 being externally heated and the lower portion 102 externally cooled, discharging the product by a gas-tight air-excluding joint 76 into a stationary receptacle 74, and to exclude air maintaining a flow of carbon monoxide and dioxide gas, substantially free from water vapour, formed by the reduction from the conduit through an opening 55 at the feed end which permits free access to the interior for a rabbling and cleaning tool. Conditions are adjusted so that 95 per cent of the manganese in the resulting product is rendered soluble in sulphuric acid and the carbon and ore feed is preferably maintained dry.  The apparatus which comprises the subject-matter of Specification 624,683 may have an electrically-heated muffle 90, a circulating water spray cooling system 103, screw conveyer feed and discharge devices 32 and 78, a felt joint 76 and automatic counterweighted swing valves 85 for gas sealing the receptacle, and a hood fitting closely around the annular opening 55 to lead the gases to a fan, cyclone separator and stack. Specifications 295,338 and 306,561, [both in Class 51 (ii)], also are referred to.
Patent GB-288286-A (GB)
Title: Improvement in paper-making machines
IPC: D21F3/04
Filed: 1928-03-30
Abstract: 288,286. Ohlin, E. A., and Carlsson, F. O. April 9, 1927, [Convention date]. Felts; wet presses.-In paper machines of the type known as Yankee, which are provided with only one drying cylinder 1, at least two pairs 4, 5 of pressing rollers are used between the couching press 3 and the drying cylinder, the upper press rollers having a common felt 7, the lower rollers having separate felts. The lower felt 9 nearest the couching press 3 may be floo@ o@ stuff produced by hard twisted yarn, while for the felt 8 a tighter woven felt with a smooth surface is suitable. The felt 7 need not pass round the upper couch roll.
Patent GB-146649-A (GB)
Title: Improvements in or relating to concrete, cement or like moulded walls
IPC: E04G17/07
Filed: 1919-04-15
Abstract: 146,649. Day, S. April 15, 1919. Walls.-Concrete walls are cast between planks or permanent slabs which are placed so that the vertical abutting edges break joint in adjacent courses, and which are clamped by ribbed plates E, F which overlap two abutting corners at one or both ends and extend across the central portion of the planks or slabs above or below. The plates are slotted to receive a bolt D with slots D' for a wedge D<2>, and the bolts pass through concrete spacing blocks C which are left in the wall. Tubular spaces are formed by short pipe lengths G superimposed and held in alinement by guides H, Fig. 5, provided with leaf springs H' which press on the inner wall of the pipe and are collapsed by pulling on cords H<2>.
Patent GB-1002128-A (GB)
Title: Improvements in and relating to electric-acoustic transducers
IPC: H04R9/06
Filed: 1961-03-16
Abstract: 1,002,128. Moving coil loudspeakers. A. TAYLOR. March 16, 1962 [March 16, 1961], No. 9714/61. Heading H4J. In a moving-coil loud-speaker or microphone in which the magnetic circuit comprises a ring magnet, a central pole member, and opposed ferromagnetic end plates between which the ring magnet is disposed, an air gap being formed between at least one of said end plates and the central pole member, which may also be magnetized, the cone is disposed between the end plates within the ring magnet with the coil in the air gap. Fig. 5 shows an arrangement in which the ring magnet 1 end plates 5d and 7d which support polepiece 6d via non-magnetic members 17 and 18. The cone 10 is supported on a flange on the magnetic ring 1 and the coil former is attached ta the apex of the cone and carries windings 8 and 8d co-operating with the two gaps. In alternative embodiments one or the other of the windings is omitted and the central polecarried directly by the appropriate end plate, Figs. 1 and 3, not shown. In addition one or other of the end plates may be dished e.g. as in Fig. 2, while in Fig. 7 a further embodiment is shown mounted on a jig 24 which locates the central polepiece 6f relatively to the end plate 5f during assembly, in this embodiment the periphery of the cone is mounted on a cardboard or plastic sleeve 21 secured in the magnet ring 1f.