baber/WOPTO huggingface dataset:
Patent GB-159584-A (GB)
Title: Improvements in or relating to ascension pipes employed on coke ovens
IPC: C10B27/06
Filed: 1919-11-28
Abstract: 159,584. Morrison, J., and Johnson, T. Nov. 28, 1919. Ascension pipes. - Air is admitted at the base of an ascension pipe h for the purpose of burning away deposits by means of a box or casting a fitted with doors b. A cover at the top of the pipe is removed during the operation.
Patent GB-445779-A (GB)
Title: Improvements in or relating to chairs, seats or the like
IPC: A47C4/12
Filed: 1934-10-17
Abstract: 445,779. Folding seats. SCHOENBERG, H., Str. Venerei 12 Alce, Casa Ing. Calmanovici, Bucharest. Oct. 17, 1934, No. 29682. [Classes 52 (ii) and 52 (iii)] A folding chair comprises a back frame 12, a seat frame comprising a pair of side members 11, a pair of front legs 13 pivoted to the side members 11, a pair of rear legs 16, each connected intermediate its ends to one of the side members 11 by a pin-and-slot connection, diagonal members 17 on each side pivoted to the upper part of the corresponding rear leg, and pivotally connected to the corresponding front leg or to the corresponding side member 11 near the pivot of the front leg, and means for locking the front legs in operative position. The locking means may comprise arm rests 20, pivoted at the rear to the diagonal members 17 or to the rear legs, and at the front to links 21 pivoted to the front legs. The back frame 12 is covered with canvas 36 wrapped round and laced at the back, and is adjusted by means of a roller 19 engaged in recesses in the members 17. The diagonal members 17 extend beyond the seat back, and serve, with legs 16, to support the chair in an inverted position in which the back 12 forms the seat. In this position the arm rests 20 and the legs 13 may be folded. The canvas seat is detachably mounted on the frame 11, the front edge being provided with a wire which is engaged in a slot in the cross member 26, and the canvas being wrapped round the member 26, and the rear edge being similarly secured to a bar 28, the ends of which engage in slots in the members 11 ; the bar 28 is adjusted by means of eye-bolts 32 and nuts 34. A foot-rest 40 having hooks 41 engaging the member 26 and struts 42 engaging holes 44 in cross members on the front legs, may be provided. A detachable table 45 having U-shaped feet 46 engaging holes in the arm rests, and adapted to be engaged with the cross members on the front legs when not in use, may be provided. The table may be engaged with the arm-rests in two positions. A reading frame may also be provided which comprises a support 50, Fig. 8, with a transparent plate 51 on which a book may be placed face downwards, and a pair of arms 52 adapted to be adjustably secured to the diagonal members 17.
Patent GB-1145019-A (GB)
Title: Rolling mill with means for roll deflection
Inventor: TRACY JOHN ANDRE
IPC: B21B29/00
Filed: 1965-07-13
Abstract: 1,145,019. Rolling mill adjustment. LOEWY ENG. CO. Ltd. 8 June, 1966 [13 July, 1965], No. 29752/65. Heading B5A. [Also in Division B3] In a rolling mill for metal or plastics materials a controllable deflection is imparted to one or more rolls to obtain a roll gap of desired contour, the roll chocks of each deflectable roll being tilted by forces acting parallel to the roll axis. The chocks 18 of the backing rolls 16 in a 4-high mill are connected to each other by toggle links 31-34, similar linkages being provided on both sides of the rolls. By introducing pressure into hydraulic piston and cylinder units 40, the links 31 and 32 tend to be collapsed and the free ends of links 33 and 34 forced away from one another. The chocks 18 thus tilt in the plane of the roll axes to decrease the gap between the control part of working rolls 24. The linkages can operate directly on the working roll chocks or can be used in a 2-high mill. In an alternative arrangement, Fig. 3, double-acting piston and cylinder units 50 are located between the chocks 18 of each deflectable roll, the pressures supplied to the various units controlling the deflection of the roll. Three or four units can be supplied between each pair of chocks. In place of the couples which are produced by forces acting on opposite sides of the roll axis, a single force may be applied to each chock in order to create a bending moment in the chock.
Patent GB-362581-A (GB)
Title: Process and plant for the low temperature distillation of coal, cannel-coal and like fuels
IPC: C10B7/06
Filed: 1930-10-06
Abstract: 362,581. Low temperature carbonization; charging and discharging retorts. STEVEN, H., 60, Rue Alfred Becquet, Namur, Belgium. Oct. 6, 1930, No. 29844. Convention date, Oct. 5, 1929. [Classes 51 (ii) and 55 (i).] In the low temperature distillation of coal or like fuel at between 420‹ and 500‹ C., and under a vacuum of about half an atmosphere, the charge is conveyed through the retort 1 by scrapers on endless chains 8, and. the inlet and outlet of the fuel are maintained gastight by causing the fuel to act as the sealing means. At the discharge end, for example, a reciprocation piston 13 compresses the fuel into a chamber 12 from which it may issue in blocks 15. A charging device 6 of similar con. struction may be used below the hopper 4. Dis. tillates are withdrawn through a suction pipe 3.
Patent GB-465053-A (GB)
Title: Improvements in thermionic amplifiers
IPC: H03F1/50
Filed: 1935-10-29
Abstract: 465,053. Valve amplifying circuits. BRITISH THOMSON-HOUSTON CO., Ltd., MOIR, J., and HIBBERD, R. G. Oct. 29, 1935, No. 29861. [Class 40 (v)] In a push-pull resistance capacity coupled amplifier dealing with a wide band of frequencies without frequency discrimination loss of high frequencies is avoided by the provision of condensers C1 C2 to neutralize inherent self-capacity. The condensers C1 C2 have each a capacity equal to the anode grid capacity of the valves and are provided in the final stage of the amplifier. In this way higher anode resistances with corresponding increase in gain may be used without loss of high frequencies. Reference has been directed by the Comptroller to Specifcation 354,192.
Patent GB-465056-A (GB)
Title: Improvements in or relating to the construction of water cooling towers
IPC: F28F25/08
Filed: 1935-10-29
Abstract: 465,056. Cooling - towers. MOUCHEL & PARTNERS, Ltd., L. G., ELMER, R. B., and GERARD, P. J. Oct. 29, 1935 No. 29873. Addition to 402,857. [Class 29] The thin drip laths c described in the parent Specification have acting upper surfaces c<2> which are approximately horizontal when the laths are placed on the inclined supports a, so as to subdivide the falling water drops into a spray. In the case of rectangular laths, the upper edges or both upper and lower edges may be chamfered to the required shape. Specification 18172 /04, [Class 29], is referred to.
Patent GB-1423978-A (GB)
Title: Electric cell or accumulator comprising a negative lithium electrode and an organic electrolyte
IPC: H01M10/0566
Filed: 1974-07-05
Abstract: 1423978 Organic electrolyte cell with lithium anode VARTA BATTERIE AG 5 July 1974 [7 July 1973] 29963/74 Heading H1B An accumulator or cell comprises a lithium anode, sulphur cathode and an organic electrolyte comprising a mixture of dimethyl carbonate and 1, 2-dimethoxyethane containing at least 15% by weight of boron trifluoride. Boron trifluoride ensures complete utilization of the sulphur and prevents formation of polysulphides. To impose the conductivity of the electrolyte conducting salts may be added, e.g. LiBF 4 , LiAlCl 4  and LiF. A preferred electrolyte composition is, by weight, 20% dimethyl carbonate, 45% 1, 2-dimethoxyethane, 25% boron trifluoride and 10 % LiBF 4 . The specification describes the construction of a button cell.
Patent GB-1040166-A (GB)
Title: Penicillins
Inventor: FOSKER GEORGE ROBERT
IPC: C07D499/00
Filed: 1964-07-29
Abstract: a -Ureido penicillins of formula <FORM:1040166/C2/1> where R is H, alkyl, aralkyl, aryl or heterocyclic, which may be substituted, and their non-toxic salts, are prepared by (A) treating 6-aminopenicillanic acid or a salt thereof with an a -ureido acid of formula <FORM:1040166/C2/2> where R has the above meaning.  A functional derivative of the acid or an intermediate formed from the acid and a condensing agent may be used.  (B) Treating an a -aminopenicillin of formula <FORM:1040166/C2/3> where R has the above meaning, with a salt of cyanic acid, e.g. potassium cyanate.  The preferred penicillin is a -ureidobenzyl penicillin. Others are a -ureidomethyl-penicillin, a -ureido-2-furylmethyl - penicillin, a  - ureido - 2 - thienyl-methyl penicillin and a -ureido-3-thienylmethyl-penicillin.  D( - )a -Ureidophenylacetic acid is prepared by treating D( - )a -aminophenylacetic acid with potassium cyanate.
Patent GB-1096374-A (GB)
Title: Improvements in or relating to power transmissions for winches or the like
IPC: B66D1/14
Filed: 1965-07-16
Abstract: 1,096,374. Winches. SPERRY RAND CORPORATION. July 16, 1965 [July 16, 1964], No.30215/65. Heading B8B. [Also in Division F2] In a two-speed planet gear for a winch wherein two sun-ring planet trains 20, 22 have a common fixed ring gear 18 and an input shaft 58 is selectively clutched at 94 or 96 to the sun 50 or carrier 48 of the first train 22 for low or high ratio respectively, a spring 104 biases both clutches to an engaged position, as shown, to effect braking of an output shaft 34 fast with the carrier 32 of the second train 20, the planets 24 of which mesh the ring 18 and a sun 38 fast with the carrier 48 of the first train. For low ratio pressure fluid is supplied from a pump 106 through a valve 112 to a servo 68 which moves left the input shaft 58 and integral drum 82. A circlip 88 on the drum moves left the presser plate 99 of the clutch 96 to disengage the latter and permit drive through the clutch 94 and both planet trains 20, 22. For high ratio pressure fluid supplied to a servo 66 moves right the output shaft 58, drum 82 and through a circlip 86 the presser plate 98 to disengage the clutch 94 and permit the input to drive the planet carrier 48 through the clutch 96. In this ratio the second train 20 acts alone. Hydrostatic transmission.-The planet gear is driven from a prime mover 107 through a forward-reverse hydrostatic gear having a pump 106 which supplies pressure fluid through a reversing valve 114 to a motor 61. For drive in the forward or inhaul direction the valve 114 connects the pump supply line 110 through a line 132, one-way valve 140 and line 136 to the motor 61. For drive in the reverse or payout direction the valve 114 connects the pump supply through a line 130 to the motor, the outflow from which is blocked by a valve 144 to brake the output shaft until the pressure in the line 130, which acts through a line 50 on the lower end of the valve 144, is sufficient to raise the valve 144 against the bias of a spring 146. On overrun of the output shaft the pressure in the line 130 falls and the valve 144 throttles the outflow from the motor to effect braking. Excessive pressure in the motor return line 136 acts through a line 149 on a small piston 151 to raise the valve 144 and prevent damage to the motor. Excess pressure in the lines 130, 132 is relieved through one-way valves 152, 154 and a relief valve 156. Control.-The valves 112, 114, Fig. 3 (not shown), are arranged so that when the valve 114 is in its neutral position the pump supply line 110 is vented irrespective of the position of the valve 112 and thus the servos 66, 68 are vented and both clutches 94, 96 engaged to brake the output shaft 34.
Patent GB-694203-A (GB)
Title: Manufacture of shaped bodies of refractory metals
Inventor: HAWORTH JOHN BRIAN
IPC: B22F3/22
Filed: 1950-12-11
Abstract: A slip of acid-leached finely divided powder of refractory metal, e.g. molybdenum or tungsten, is cast onto a former or into a mould and the liquid is removed, e.g. by using a porous former or mould, to leave a casting which is then dried, removed from the former or mould, further dried and then sintered.  The slip is preferably slightly acidulated, e.g. by using residual acid from the acid leaching process which may be performed in stages, using relatively strong acid at first followed by successive repetitions each time using weaker acid; e.g. 10 per cent. (vol/vol) hydrochloric acid at first, followed successively by 5 per cent., 2 1/2 per cent., 1 per cent. hydrochloric acid.
Patent GB-216453-A (GB)
Title: Improvements in pneumatic lifting jacks
IPC: B66F3/24
Filed: 1923-12-01
Abstract: 216,453. Soc. Alsacienne d'Accessoires pour Automobiles, and Schwarzer, F. Dec. 1, 1923. Jacks.-An annular packing 8 preferably of rubber is placed in a groove 7 in the piston 3 of a pneumatic jack and has a flange 10 which bears against the cylinder. A space 11 is provided between the flanged web 8<1> of the packing and the wall 3<1> of the piston. The packing is supported by a resilient ring 9 which rests on curved radial lugs formed on a plate 12 mounted on the piston. The load is supported by a hardened steel point 6 detachably mounted in the end of the telescopic piston-rod.
Patent GB-906099-A (GB)
Title: Improvements in or relating to electro-magnetic relays
IPC: H01H51/06
Filed: 1960-09-02
Abstract: 906,099. Electromagnetic relays. INFRANOR S.A. Sept. 2, 1960 [Sept. 4, 1959], No. 30389/60. Class 38 (5). An elongated armature 15 is secured at its centre on a spindle 14 mounted in bearings 13, 22 in bridges 11, 20 spaced apart on shoulders 12, 21 of a stirrup support 4 secured to the relay base 1. The latter has glass sleeve inserts 3 carrying terminals 2, some of which carry fixed contact sleeves 10 whilst others have moving contact springs 8 secured thereto. Members 18, 19 project from the armature 15 through holes in the bridge 11 and normally engage the springs 8 so that the armature is biased out of alignment with pole ends 27, 28 of an electromagnet 23 having a one-piece core and a coil 26. When the coil is energized the armature moves to bridge the pole ends 27, 28 and projections 18, 19 open or close contacts 8, 10. The complete assembly may be mounted in an evacuated or gas-filled box.
Patent GB-901393-A (GB)
Title: Method of and apparatus for severing tubes with a helical welding seam
IPC: B23Q7/00
Filed: 1958-12-23
Abstract: 901,393. Making helically seamed tubes; shearing; milling. KUCKENS, A. Dec. 23, 1958 [April 5, 1958], No. 30520/60. Divided out of 901,391. Classes 83 (2), 83 (3) and 83 (4). [Also in Group XXIII] A method of cutting off tubes from tubing emerging from a machine for making helically welded tubing from strip comprises first machining a circular V-shaped groove in the wall of the tube and then completely severing the remaining material of the tube wall. Steel strip 1a is coiled into tubular form in a forming tool 2 and adjacent edges are welded together to form a helical seam. The rotating formed tubing is delivered on to a carriage 3, on which cutting off is effected when the end of the tubing engages a stop 4 on a rod 7 connecting the carriage 3 and a carriage 6. After cutting, the severed tube is removed by accelerating supporting rolls 5b by a motor 5a, the carriages then returning. The carriage 3 comprises, Fig. 3, a frame 36 running, on wheels 37, on rails 5, and carrying tube-locating rolls 44, a milling head 40 and a rotary cutter blade 41. In operation a programme selector operated by a stop 47 on the carriage engaging a limit switch 48 on a rail 5 starts a pump 49 on the carriage to cause hydraulic means 45 to move the rolls 44 on to the tube, then, after some delay, to cause hydraulic means 42 to feed the milling cutter 40 into the tube, until the tube is engaged by a depth control roller 39. The cutter 41 is then moved in by hydraulic means 41 to sever the tube at the apex of the groove cut by the milling cutter 40. The groove may be produced by grinding. A weighted saddle G rests on the tube to damp vibrations when milling and cutting. Specification 901,392 also is referred to.
Patent GB-1114904-A (GB)
Title: Epoxy resin foam plastics and process for making them
IPC: C08G59/52
Filed: 1965-07-19
Abstract: Foaming and hardening epoxy resins under the action of a carbamate of at least one primary or secondary polyamine optionally in admixture with at least one primary or secondary polyamine as additional hardener.  Foaming is achieved by thermal decomposition of the carbamate in the temperature range 20-200 DEG  C. to give carbon dioxide and the free polyamine. Polyepoxy compounds based on specified mono-nuclear phenols containing two hydroxyl groups, multi-nuclear phenols or bis-phenols, aliphatic poly-epoxides of diols or polyols and their high molecular weight reaction products with ethylene oxide and/or propylene oxide may be used.  In particular epichlorhydrin derivatives of mono-nuclear dihydric phenols, bis-phenols such as 2,2-di-(p-hydroxyphenyl) propane, aliphatic diols or aliphatic polyols such as glycerol are specified. The preferred carbamates are compounds of the formula <FORM:1114904/C3/1> wherein R is a straight or branched chain aliphatic, cycloaliphatic, aromatic or araliphatic radical and n is an integer from 0 to 30, compounds of the formula <FORM:1114904/C3/2> wherein R1 and R2 have the same significance as R above, R3 is branched or unbranched saturated or unsaturated aliphatic, cycloaliphatic or araliphatic and n is an integer in the range 0 to 10 as well as carbamates obtained by the action of carbon dioxide on specified aliphatic or cycloaliphatic primary, secondary or primary-secondary polyamines, aromatic diamines and di-(aminophenyl)alkanes.  The free polyamines corresponding to the above-mentioned carbamates can also be present as the additional hardening agents.  Specified surface active agents such as polysiloxanes or polyepoxides may be incorporated and, if desired, a filler, a dyestuff, a plasticizer, a fire-retarding agent or a mixture of any two or more of these substances may be present.  The foamed products may find application in thermal, acoustic or electrical insulation.  Carbamates of the first general formula above, which are soluble in amines and polyepoxide resins, are obtained by treating acrylonitrile with the appropriate specified di- or poly-ol and reacting the hydrogenated product with carbon dioxide. Carbamates of the second general formula above are obtained by treating specified 1,2-alkylene oxides with specified di- or poly-amines and reacting the product with carbon dioxide.
Patent GB-1106437-A (GB)
Title: Poppet valve
Inventor: NIXON GEOFFREY HERBERT
IPC: F16K1/06
Filed: 1965-07-20
Abstract: 1,106,437. Valves. BRISTOL SIDDELEY ENGINES Ltd. 15 July, 1966 [20 July, 1965], No. 30776/65. Heading F2V. A valve mounted on the base 1 of a tank for controlling the flow of liquid hydrogen peroxide from the tank to the combustion chamber of a rocket engine comprises, a housing 4 defining seats 9, 10 for a closure member 11, a bellows 6 connecting the housing to an annular plate 7 carried by the base 1, an outlet conduit 5 and an annular plate 8 spaced from the base 1 by ribs 2 and connected to a baffle plate 3. A stem 12 carried by the closure member has a head 19 slidable in a cylinder 13 connected to housing 4 by webs 14. To open the valve against a spring 17, compressed hydrogen peroxide is admitted from a starting tank to chamber 23, via passages 21-22. The liquid hydrogen peroxide then flows radially through the annular path defined by base 1, plates 7, 8 and the concave underside 16 of the closure member to the opening defined by housing 4. The said path has a substantially constant cross-sectional area. Pipe 5 supplies a pump and when the latter is running normally a tapping is made from its delivery line to passage 20 so that the pump then maintains the valve open. Closure member 11 has soft and hard rubber sealing rings 25, 24 which co-operate respectively with seats 9, 10. Bellows 6 accommodates movement of the base 1 that occurs when the tank is full.
Patent GB-797747-A (GB)
Title: Galvanized overhead conductor wire
IPC: C21D9/52
Filed: 1956-10-09
Abstract: In a process of producing an overhead conductor wire, rimmed steel is made by the method of the Parent Specification, the billets are rolled into rod which is heated above the AC3 point (to about 1650 DEG F.) and quenched in molten lead at between 830 DEG  and 975 DEG F., then pickled, limed, drawn into wire of the desired size, and finally galvanized.  A steel wire so made may consist of 0.35-0.85 per cent C, up to 0.04 per cent Si; from 0.15 to 0.75 per cent Mn, and the balance Fe apart from residual impurities.  The presence of P less than 0.002 per cent, S less than 0.03 per cent, Al less than 0.01 per cent, is also mentioned. The outer zone of lower C and S content produced by the parent process persists in the wire.
Patent GB-787584-A (GB)
Title: Improvements in or relating to discharge tubes having a plurality of discharge gaps
IPC: H01J17/48
Filed: 1954-10-26
Abstract: 787,584. Multi-gap cold-cathode tubes. TELEFONAKTIEBOLAGET L. M. ERICSSON. Oct. 26, 1954 [Oct. 26, 1953], No. 30918/54. Class 39(1). In a gas discharge tube wherein a plurality of cathodes and one anode common to the cathodes are provided to afford a plurality of discharge gaps, the cathodes being formed and located in such a way that when one such discharge gap is in a fired condition the ignition voltages of the two discharge gaps adjacent said one gap are reduced by different amounts, an auxiliary electrode is located between each pair of discharge gaps and is associated with the cathodes of the latter, the arrangement being such that a positive potential applied to the auxiliary electrode adjacent said one gap can cause the discharge to be transferred to a particular adjacent discharge gap. The tube shown diagrammatically in Fig. 3 comprises directional cathodes K 1 , K 2  &c. connected through R-C circuits to earth, and a common anode A 1  connected to a source of positive potential V 1  through an anode resistance. Auxiliary electrodes S 1 , S 2  &c. are connected together inside the tube and through a resistance to a source of positive potential Vz. The tube is operated by applying positive pulses to the auxiliary electrodes, the manner of operation depending on the magnitude of the operating voltage. The auxiliary electrodes may act as screens and take only a small probe current, the operation depending on the fact that an increase in the potential of an auxiliary electrode adjacent to a discharging gap has the effect of decreasing the ignition voltage of the next main gap. Alternatively, the potential of an auxiliary electrode adjacent to a discharging gap may be increased to an extent such that an auxiliary discharge takes place between the auxiliary electrode and the next cathode, after which the main gap corresponding to the said next cathode is fired. The tube may be operated by a combination of the two effects. The electrode arrangement may be as shown in Fig. 5, in which the cathodes are arranged obliquely to the anode as described in Specification 772,615 to obtain the directional effect, and the auxiliary electrodes are plates arranged perpendicularly to the anode. Alternatively the auxiliary electrodes may be arranged parallel to the anode as described in Specification 772,615. In Fig. 6 the cathodes are the " tail and plate " type and the auxiliary electrodes are angle members. The de-ionization time of the tube may be reduced by adding a small quantity of hydrogen to the rare gas filling. Reference has been directed by the Comptroller to Specification 772,615.