baber/WOPTO huggingface dataset:
Patent GB-1072121-A (GB)
Title: Treatment of metal
Inventor: CHURCHER THOMAS CHRISTOPHER
IPC: C21C5/46
Filed: 1964-02-07
Abstract: A water-cooled, oxy-fuel burner made of copper is disposed downwardly and inwardly of the wall of an electric arc furnace so that on tilting the furnace molten metal contained therein may be refined. The burner, Fig.2 (not shown) comprises a central duct for oxygen &c., with a concentric duct for fuel both leading to a convergent-divergent nozzle and outer concentric passageways for cooling water.  During melting, the burner is used the fuel then being turned off and the furnace heated by the electric arcs. Lime and silica may be supplied with the remaining oxygen, the furnace being titled to bring the burner tip below the melt level. More than one burner may be mounted in the furnace and the burner or burners may be used to supply nitrogen or argon, either alone, or with powdered lime as a desulphurizing agent. The burners may also supply a gaseous or solid carburizing agent such as propane, butane or powdered graphite or anthracite, or for introducing finishing materials, solid reagents being suspended in a suitable gas.
Patent GB-194683-A (GB)
Title: Improvements relating to the preservation of wood
IPC: B27K3/02
Filed: 1923-02-23
Abstract: 194,683. Tolmer, P. March 10, 1922, [Convention date]. Wood, treating with liquids.-Wood is heated to a temperature of 80-120‹ C. and simultaneously or subsequently impregnated with a material consisting of an antiseptic and a fixing agent such as that described in Specification 15713/10. The wood tar contained in this material may be replaced by similar hydrocarbons such as compounds of phenol or cresol. Reference has been directed by the Comptroller to Specification 111,842.
Patent GB-470922-A (GB)
Title: Improvements in or relating to television and like systems
IPC: H03K4/34
Filed: 1936-02-24
Abstract: 470,922. Valve generating circuits. BAIRD TELEVISION, Ltd., and JOHNSTONE, D. M. Feb. 24, 1936, No. 5492. [Class 40 (v)] A scanning-oscillator is arranged to produce current of saw-tooth form through its anode circuit by providing a back coupling between two grid circuits, one of which includes a resistance - capacity combination. The anode circuit may include a scanning- coil, or a resistance with the deflecting-plates connected across it. As shown, a condenser 3 is connected between resistances 2, 6, both of which may be variable, across the supply source. The positive side of the condenser 3 is connected to the inner grid of a valve 1 through a coil 4 which is coupled to a coil 5 in the circuit of the positively-polarized screen grid. The anode circuit includes an inductance 7 and is connected by a condenser 8 to the scanning-coils. The condenser 3 is slowly charged through the resistances 2, 6 and when the inner grid reaches a certain positive voltage the valve breaks into self-oscillation and the condenser quickly discharges. Synchronizing pulses may be applied to the suppressor grid or to the inner grid by connections across the resistance 2. If electrostatic scanning is employed, the anode impedance 7 is resistive.
Patent GB-449967-A (GB)
Title: Improved means for supporting roofs of mines and other underground roadways
IPC: B03C1/14
Filed: 1935-02-21
Abstract: 449,967. Mine roof supports. STEWARTS & LLOYDS, Ltd., 41, Oswald Street, Glasgow. Feb. 21, 1935, No. 5545. Convention date, Aug. 29, 1934. [Class 20 (ii)] A mine-prop or roof-support comprises telescopic tubular metal members, the outer member being provided with internal projections which contact with the end of the internal member and offer resistance to its movement under load. The end of the inner tubular member 21 is inturned and normally rests on projections 27 carried by a clamping ring 24 which encircles the outer prop-member 22, the projections passing through holes in the wall of the outer prop-member. Relative longitudinal movement between the propmembers under load results in grooves being formed in the inner member by the projections. Alternatively, the projections may be directly fixed in the wall of the outer member and more than one set of projections may be provided. For mine roofs a cambered bar 20 supports bearers E and is fixed at each end to the recessed end 25 of an inner propmember, further bearers being interposed between the props and the walls of the tunnels ; the props give when the load on the cambered bar exceeds a predetermined amount.
Patent GB-833403-A (GB)
Title: Current compensator control for welding circuit
Inventor: THOMSEN THEODORE
IPC: B23K11/24
Filed: 1958-02-20
Abstract: 833,403. Automatic current-control systems for resistance-welding; phase shifting. ROBOTRON CORPORATION. Feb. 20, 1958, No. 5545/58. Classes 38 (2) and 38 (4). A system for automatically stabilizing the current of a resistance welder consists of the following combination of features. The welding transformer 41 is energized from an A.C. source 43 through a pair of ignitrons 44, 46 controlled by a pair of thyratrons 47, 48, the firing points of which is determined by a phase-shifting circuit consisting of a variable resistance circuit 26 in series with a capacitor 23 across the secondary of a transformer 9 and an output transformer 21 connected between the capacitor 23 and the centre-top of transformer 9. The circuit 26 consists of a pair of triodes 27, 28 shunted by rectifiers 32, 33 so that the current flowing in alternate halfcycles is determined by the bias applied to each triode. The bias is obtained across the load resistor 68 of a comparator valve 66 to which are applied a voltage proportional to welding current (obtained by rectifying at 84 the output of a current transformer 81 in series with the welding transformer) and a reference voltage tapped off a potential divider 72. The system then operates to maintain the welding current at a value predetermined by the setting of the potential divider 72. The reference voltage is obtained from a D.C. source stabilized by a tube 61, and can be varied by passing current through a valve 76 and resistor 74. During welding the valve 76 is cut-off by bias from a transformer 102 and the full value of reference voltage is available. Between welds, when the contactor 11 is open, valve 76 conducts and reduces the reference voltage to a level such that in the absence of the welding current signal, the valve 66 is not cut-off and so the phaseshift circuit 26 is held prepared for the next weld. In a modification, Fig. 2 (not shown), the welding current is increased or decreased during the duration of the weld by switching a resistance-capacitance network into the grid circuit of valve 76 so that according to whether the capacitance is arranged to charge or discharge, the reference voltage will rise or fall and consequently the welding current will rise or fall during the weld.
Patent GB-817485-A (GB)
Title: Improvements in and relating to filter presses
IPC: B01D25/176
Filed: 1956-02-23
Abstract: 817,485. Filter presses. GEIGY, A. G., J. R. Feb. 23, 1956 [Feb. 25, 1955], No. 5583/56. Class 46. In a plate for a filter press in which the liquid to be filtered enters through the material of the frame R, the central part is of reduced thickness and comprises a double filter cloth arranged over a rough central support plate P having a central slot Sp over which the edges of similar slots in the filter cloths project and are secured together. The edges may be secured together before the cloth is applied to the support, one cloth being drawn through the slot to cover the opposite side of the support : the central slot extends over substantially the whole height of the central part. Specification 727,091 is referred to.
Patent GB-271383-A (GB)
Title: Improvements in printing types made of glass
IPC: B41B1/02
Filed: 1927-02-28
Abstract: 271,383. Kajihara, S., and Shinohara, K. July 17, 1926, [Convention date]. Types made of glass have one or more of their lateral surfaces 1 frosted, so as to increase the coefficient of friction of the surface, and thereby facilitate setting.
Patent GB-1437573-A (GB)
Title: Hand tools
IPC: B25G3/34
Filed: 1974-02-07
Abstract: 1437573 Attaching handles ENGLISH TOOLS Ltd 6 Feb 1975 [7 Feb 1974] 05594/74 Heading B3A [Also in Division B4]  A hand tool having a metal head with a shaft 10 extending therefrom has a non-metallic handle 14 connected to the shaft by a spigot and socket joint and has a tubular metal sleeve 15 enclosing the joint and secured to both the handle and the shaft. The sleeve 15 may be riveted or welded to the shaft 10 and riveted or cemented to the handle 14. The tool may be a rake or hoe and the tool head is preferably welded to the end 11 of the shaft 10 prior to the connection to the handle being made. The sleeve 15 may be swaged or shrunk on to the adjacent portions of the shaft and handle.
Patent GB-212096-A (GB)
Title: Improvements in or relating to fluid pressure gauges
IPC: G01L27/00
Filed: 1923-02-27
Abstract: 212,096. Hill, E. H., and Hill, H. Feb. 27,1923. Pneumatic - tyre pressure gauges.-A fluid-pressure gauge particularly suitable for attachment to pumps for inflating pneumatic tyres is fitted to the pump cylinder or other container in such a way that the fluid under pressure may be admitted to or released from the pressure gauge by moving the 'gauge relative to the container. On the gauge 1 is provided a stem 2 having a passage 3 communicating with the gauge, and also by a port 4 with an annular space between the stem 2 and a sleeve 5 which is adapted to be screwed into the wall 18 of the container. A spring 10 arranged between the gauge body 1 and the head 6 of the sleeve 5 acts normallv to hold the head 8 of the stem 2 against the end of the sleeve, and so prevents access of pressure fluid to the gauge. while at the same time the gauge is open to atmospheric pressure through the annular space and a port 15. When it is desired to take a reading, the gauge body is depressed, as by a forked lever 16, Fig. 3, and the movement of the head 8 permits access of pressure fluid to the gauge. A cup washer 12 closes the atmospheric port 15. The head 8 may be fitted with a washer 9. and a washer 7 is provided between the port 6 and the container wall 18. In a modification the cup shaped washer 12 is replaced by a flat washer. The washer 9 may be formed of cup shape. The apparatus may be further modified by arranging the gauge body 1 and its stem 2 to have rotary motion relatively to the container, in which case suitable ports are arranged in the stem 2 and sleeve 5, or a straight or skew groove may be formed on the stem 2. When cup shaped washers are used at the ends of the annular space; the ports may be arranged in the cup leathers. '
Patent GB-441740-A (GB)
Title: Improvements in or relating to magnetron arrangements
IPC: H03B9/10
Filed: 1935-02-21
Abstract: 441,740. Discharge devices. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Feb. 21, 1935, Nos. 5632 and 5633. Convention dates, Feb. 23, 1934 and July 5, 1934. [Class 39 (i)] In a magnetic arrangement the discharge device is situated in a gap in the magnetic circuit which comprises a permanent magnet and a ferro-magnetic member which is adjustable to vary the field. A magnetron R, provided with a split cylindrical anode, is mounted between the poles P of the magnet and the field is varied by a shunt S which is pivoted at a, and is provided with a pointer z, co-operating with a scale SK, and with clamping or locking means. Alternatively, the shunt is moved longitudinally between the limbs of the magnet by a spindle which screws into the part B or is adjustably arranged parallel to the gap in which the magnetron is situated. In other forms a ferromagnetic member is movably arranged in a gap in one of the limbs C, or a gap in the limb is partly or wholly filled with non-ferro-magnetic material and four ferro-magnetic members are arranged on the sides of the limbs and are adapted to be moved relatively to one another to vary the length of the gap. In another form, one or both poles P are movable.
Patent GB-234903-A (GB)
Title: Improvements in the design of road crossings at the junctions of roads, to relieve traffic of congested nature
IPC: E01C1/02
Filed: 1924-03-05
Abstract: 234,903. Gangopadhyay, J. N. March 5, 1924. Roads and ways, arrangements of.-To facilitate the passage of traffic at cross roads, an elongated barrier 1 is disposed longitudinally along the main road a, c and flanked by end islands 2 which are curved to coact with the rounded ends of the barrier to provide definite passages for cross traffic which, to effect a crossing, must pass round the ends of the barrier and join the oppositely moving traffic on the other side. The invention is shown in Fig. 2 applied to the junetion of six roads. Fig. 4 shows the end island extended across the road to restrict the traffic at the side of the road to a single or double stream.
Patent GB-178998-A (GB)
Title: Improvements in flanges for warp beams or rollers used in looms and other textile machines
IPC: D02H13/28
Filed: 1921-02-19
Abstract: 178,998. Fisher & Ludlow (1920), Ltd., and Shaw, A. Feb. 19, 1921. Warp beams.-An identification plate A, which may be annular, is secured between the flange B and the flanged boss C of a warp beam by bolts 3, which pass through the plate and secure the boss to the flange. The plate, which is of larger diameter than the flange of the boss, may be stamped with an annular channel 6 fitting a similar channel 4 in the flange B to receive the bolt-heads 5.
Patent GB-1537375-A (GB)
Title: Soluble copper phthalocyanine dyes and their use
IPC: C09B47/10
Filed: 1976-02-13
Abstract: 1537375 Copper phthalocyanines BASF AG 13 Feb 1976 [14 Feb 1975] 05717/76 Heading C4P The invention comprises copper phthalocyanine dyes having the general Formula (I) wherein m has a mean value of at least 3, the sum (n+m) is not more than 16, CuPc is a copper phthalocyanine radical devoid of hydroxy groups attached to the phenylene nucleus thereof, X is chlorine or bromine, R is phenyl optionally substituted by one or more substituents which do not confer solubility in water, the groups R may be the same or different and if n is more than one, the groups X may be the same or different. Preferred R groups are phenyl, methyl-phenyl, tbutylphenyl, i-propylphenyl, octylphenyl, dodecylphenyl, dimethylphenyl, diethylphenyl, trifluoromethylphenyl, methoxyphenyl, cyclohexylphenyl, diphenyl, bis-(phenylethyl)phenyl, 4-(α,α- dimethyl - p - hydroxybenzyl) phenyl, dimethyl-, aminophenyl, 2 - pyrrolidon - 1 - yl - phenyl, chlorophenyl and chloromethylphenyl. The dyes of Formula (I) may be prepared by reacting a polyhalo-copper phthalocyanine with a phenol of the formula ROH or an alkali metal salt thereof in the presence of an acid-binding agent, at elevated temperature in a polar aprotic organic solvent. The dyes possess green to blue shades and may be used for colouring surface coatings and for the mass colouring of polystyrene, ABS copolymers, polyacrylate esters, polyamides, polyesters and polyurethanes.
Patent GB-608451-A (GB)
Title: Improvements in fastenings for attache and suitcases and the like
IPC: E05B65/50
Filed: 1946-02-25
Abstract: 608,451. Attache-case fastenings. CHENEY & SON, Ltd., C. W., and CHENEY, C. W. Feb. 25, 1946, No. 5727. [Class 44] In fastenings of the type having a manuallyoperated, slidable knob for withdrawing the bolt and a rotatable ring-member arranged concentrically of the knob to block the withdrawal of the bolt, the ring member 8 is rotatably united with a centre-piece 7 to constitute a permanently assembled knob unit. The centre member is connected to the bolt 3 by ears 18 and the ring member has operating knobs and a cam-piece 12 to co-operate with an abutment 14 to resist retraction of the bolt. The ring member carries lugs 20, which are closed over the rim 17 of the centre member 7, the bearing surface between the two being of conical form.
Patent GB-306550-A (GB)
Title: Improvements in or relating to processes and apparatus for the mechanical productionof froth
IPC: B01F3/04
Filed: 1929-02-21
Abstract: 306,550. Schr÷der, E., and Deurs, J. A. S. van. Feb. 21, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 25, 1929]. Continuous-discharge apparatus with stationary containers.-In the mechanical production of froth, a gas and a froth-forming liquid are directed against rotary whipping members or stationary wires or coarse wire gauge at a relatively high velocity and under a pressure greater than atmospheric. As shown, water from a pipe d controlled by a valve e is pumped by a pump b into a whipping device a, the pump drawing in air at f and a frothing agent from a tank h at j. Froth is delivered at a pipe l with branches m controlled by valves n. The gas and liquid might be pumped into the device a by separate pumps. The pressure from the pump b and the resistance offered to flow by the valves n may be so arranged that any desired pressure is obtained in the device a. A whipping device, Fig. 2, comprises a casing o with a rotatable shaft p carrying whipping brushes q and partitions r. The latter co-operate with fixed partitions s, causing the gas and liquid to follow a sinuous course. Slotted walls or vanes x between the partitions r, s stop or impede rotary motion of the liquid. In a modification, the casing o is rotatable and carries the brushes q and partitions s, the partitions r and slotted vanes x being carried by a fixed shaft which is hollow for admission of the air and liquid. A pair of shafts carrying brushes might be provided. In a further modification, rotary whipping members are dispensed with, and the casing has a series of stationary wires or vrire-nettings, through which the gas and liquid are forced under pressure and at relatively high velocity.
Patent GB-778741-A (GB)
Title: Improvements in, or relating to, cranes
IPC: B66C13/18
Filed: 1955-02-26
Abstract: 778,741. Lever load handling machines. WHITTALL, J. A. Feb. 22, 1956 [Feb. 26, 1955], No. 5800/55, Class 78 (3). In a crane of the type in which a boom is pivoted at a point intermediate its ends on a telescopic tower, one end of the boom carries the load and the other end is connected to the tower so that expansion or contraction of the tower displaces the latter end in the opposite direction to the displacement of the tower. As shown, Fig. 1, a boom 16 is pivoted at 14 to a cylinder 10 which is slidably mounted in a framework 6 and which is raised by an hydraulic cylinder 7 and ram 8. A cable 17 passes from one end of the boom round pulleys 19, 20 to a collar 11 secured to the bottom of cylinder 7 and slidable in guides 26, 27. As the cylinder 10 is raised, the collar 11 is raised so pulling down one end of the boom by the cable 17. As shown, the crane is mounted on two road wheels, but alternatively it may be mounted directly on the ground or on more than two wheels.
Patent GB-254226-A (GB)
Title: An improved supporting device for smokers' pipes or cigar or cigarette holders whilein use
IPC: A24F9/14
Filed: 1926-03-02
Abstract: 254,226. Jewell, A. March 2, 1926. Tobacco pipes and cigar and d cigarette holders. - A device adapted to support a tobacco pipe or cigar or cigarette holder while in use comprises a length of wire bent to form limbs a, b, which are preferably crossed, cranked semicircular portions c for gripping the tobacco pipe or like stem, and a straight portion d adapted to bear against the chin of the smoker. The wire may alternately be bent so that the free ends comprise the portion d. The portions c, d may be covered with material such as rubber tubing, which may be serrated on its bearing surfaces.
Patent GB-1219222-A (GB)
Title: Control circuit for machine tools
Inventor: HABERLAND KURT
IPC: G05B19/23
Filed: 1969-02-04
Abstract: 1,219,222. Programmed control of machine tools. STARKSTROM-ANLAGENBAU KARLMARX-STADT VEB. Feb. 4, 1969, No. 5827/69. Heading G3N. A positional control for a numerically controlled machine wherein a displacable element over-runs a set position then is reversed to it at a decreasing speed to absorb backlash includes a diode matrix 2, in which speed reduction values for the cycle is stored, a quadrant control 3 for the emission of a direction signal, and a positioning counter 1 connected together and to a second diode matrix 5 in which speed reduction values corresponding to determined distances from the set point are stored. The matrix inputs are connected to an instruction store 4 and the out-puts to a machine control unit 6. As the displacable element approaches the set position HK from point VKI, a first speed reduction takes place at VKI and an instruction from store 4 blocks matrix 2 hence a further reduction programmed at point VK2 is non-effective and the element over-runs point HK at which point the counter 1 is reversed by the quadrant and control 3 and matrix 2 is released. At point SK, the counter 1 emits a signal to matrix 5 which causes the direction of the element to be reversed and the speed is further reduced at VK2 and stopped at HK, the count being zero at this point. The reversal point SK may lie at any distance from HK2 may occur coincidently with or before VK2. Where the element approaches from the right the above operation is reversed.
Patent GB-1192743-A (GB)
Title: Improvements in or relating to methods of and apparatus for Consolidating Textile Slivers
Inventor: SOWERBY VERNON
IPC: B65H54/84
Filed: 1967-02-07
Abstract: 1,192,743. Packaging textile slivers. TAYLOR WORDSWORTH & CO. Ltd. 5 Feb., 1968 [7 Feb., 1967], No. 5851/67. Heading B8C. [Also in Division B5] In a baling press of the type in which a coiled sliver located in a can is compressed between the false bottom of the can and an upper member, the compression is effected in two stages, the first stage being effected within the can and the second, final stage, being effected outside of the can. In the embodiment shown in the figures, the sliver is coiled around a spindle 33 carried by the false bottom plate 34 of a can 35. The upper end of the spindle is releasably connectible with a collet 32 carried by a ram 29 itself mounted upon a vertically reciprocable framework 15, 17, 20. In operation, a can containing a coiled sliver is wheeled to a position below the framework and the framework lowered until plate 21 carried thereby engages the upper surface of the coil. The ram 29 is then actuated to lower the collet into engagement with the spindle after which the collet is raised to pull the bottom plate 34 upwardly thus effecting the initial compression. The framework is then raised to raise the compressed coil clear of the can after which the ram 29 is actuated to further raise the bottom plate and effect the final compression, during which compression strings 40 are tied round the package thus formed, the strings being accommodated in grooves 41 in the plates 21 and 34. Finally the bottom plate is lowered and is released by the collet and allowed to fall back into the can, the bale being retained for subsequent removal on the plate 21 by a spring plate 21 over which the strings 40 pass.