baber/WOPTO huggingface dataset:
Patent GB-1385057-A (GB)
Title: Data transmission
IPC: H04L25/03
Filed: 1972-05-31
Abstract: 1385057 Adaptive equalizers INTERNATIONAL BUSINESS MACHINES CORP 31 May 1972 [30 June 1971] 25357/72 Addition to 1357609 Heading H4R In an adaptive equalizer for a signal received from a transmission system which is of the form 1-A, where 1 is a unit amplitude pulse and -A is the distortion produced during transmission and consists of a series of response values at sampling instants before and after the unit pulse, the signal is applied initially to a transversal equalizer 10 having all multipliers 14 except the main tap multiplier # 0  set to zero, the multiplier # 0  being set to 1. The equalizer output is modified, by subtraction from either 1 or 2, in adder 19 or 19<SP>1</SP>, and the adder output applied again to the equalizer input, via line 20. The equalizer output is then used to adjust the multipliers # -2  to # +2  via the tap adjusting means 16 so that the values of the multipliers are set equal to the signal values at the respective sampling points along the equalizer output signal. With the new equalizer adjustment a fresh signal is applied to the equalizer input and the two stage process repeated to derive further adjustments of the equalizer tap multipliers. The process is repeated a number of times,  e.g. 5, until the distortion component in the equalizer output signal is reduced to an acceptable value. Instead of using the same equalizer 10 for each original signal and modified signal passage a second equalizer 10<SP>1</SP> identical to the first and with its multipliers coupled to those of the first, can be used to operate on the modified signal from the adder 19 or 19<SP>1</SP>, this reduces convergence time by allowing overlapping of the signals in the two equalizers. The adjustment of the equalizer tap multipliers may be incremental, in which case the summer 19 is used, so that the summer output is just the inverted distortion component, e.g. +A of the equalizer output, or all the multipliers can be set to zero and reset to the required value by the tap adjuster 16 in which case the summer 19<SP>1</SP> is used, providing an output which is the main pulse 1 plus the inverted distortion component (e.g. + A on the first passage through the equalizer with its initial setting).
Patent GB-882511-A (GB)
Title: Improvements in and relating to valve tappet housings for internal combustion engines
IPC: F01L1/12
Filed: 1959-07-23
Abstract: 882,511. Casings; valve gear; lubricating. CESKOSLOVENSKE ZAVODY NAFTOVYCH MOTORU PRAHA, NARODNI PODNIK ,and NOVOTNY, V., and DOROSENKO, N. July 23, 1959 [Aug. 28, 1958], No. 25369/59. Classes 7(2) and 7(6). A valve tappet housing 10, Fig. 2, which forms for each working cylinder a removable guide and cover unit, has a seating surface 11, which lies perpendicular to the tappet motion, and securing screws 13, Fig. 3, which are parallel to the tappet motion. Jointing means 20, 21 are included in the apertures of the housing side walls. Cams 4 and 6 operate the valve push rods 5 and a fuel injection pump 7. The longitudinal partitions 25 bound the duct 26 for fuel oil drippings and the lubrication oil channel 27 and these ducts on adjacent housings are interconnected by tubular connections.
Patent GB-1449297-A (GB)
Title: Tricyclic compounds
IPC: A61P25/20
Filed: 1974-06-07
Abstract: 1449297 Tricyclic compounds F HOFFMANN LA ROCHE & CO AG 7 June 1974 [8 June 1973] 25381/74 Heading C2C Compounds of the general formula (X = O, S; R 1 , 2  = H, C 1-7  alkyl; R 3  = H or R 2+3  = additional bond; R 4 , 5  = H, C 1-7  alkyl or hydroxyalkyl, alkanoyloxy-(C 1-7  alkyl) or NR 4 R 5  = saturated 5- or 6-membered ring which may contain O, S or a second N and/or be substituted by C 1-7  alkyl or hydroxyalkyl, or alkanoyloxy-(C 1-7  alkyl); R 6  = halogen, CF 3 , OH, NO 2 , NH 2 , di(C 1-7  alkyl)amino, di(C 1-7  alkyl)sulphamoyl, C 1-7  alkyl, alkoxy, alkylthio or alkylsulphonyl; R 7 , 8  = H or a substituent listed for R 6 ), N-oxides of the tertiary amines and acid addition salts of the compounds and N- oxides are prepared by (a) the Mannich reaction, (b) reacting a corresponding compound in which the amino group is replaced by a leaving atom or group with R 4 R 5 NH, (c) dehydrating a corresponding compound in which R 2  = H and R 3  = OH, (d) alkylating a primary or secondary amine, (e) oxidizing a tertiary amine or (f) introducing an alkanoyl group, optionally followed by salt formation. Any hydroxy group R 6-8  may be protected during the reaction. The preparation of starting materials for processes (a), (b) and (c) and 3-(8-chlorodibenzo[b,f]thiepin - 10 - yl) - 2 - propyn - 1 - ol is described. The above compounds are neuroleptics, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-698846-A (GB)
Title: Improvements in gangways
IPC: B63B27/14
Filed: 1951-10-30
Abstract: 698,846. Gangways. RUHRSTAHL AKT.- GES. Oct. 30, 1951. [Feb. 14, 1951] No. 25398/51. Class 113 (i). A gangway has longitudinal rails 1 of closed hollow section of light metal constituting buoyant bodies. The rails are of flat tubes to which are welded supports for cross rails carrying the flooring and on which are mounted supports 7 for the rail posts 2.
Patent GB-241233-A (GB)
Title: Improvements in and relating to hoists
IPC: B66F9/02
Filed: 1925-10-12
Abstract: 241,233. Centner, G. Oct. 11, 1924, [Convention date]. Winch-actuated guided-skip hoists. -Relates to a hoist in which the carrier 4 is provided with a tilting platform 5, and the hoisting drum 12 is braked and the friction driving-gear disengaged automatically when the platform reaches its maximum inclination, as described in Specification 178,114. The drum 12 is driven by the motor 22 through friction gearing 18, 17, and spur reducing gear 15, 14, and a. brake drum 27 is mounted on the shaft 13 carrying the hoisting drum. The shafts 13, 16 are mounted in eccentrics which are connected bv the linkage 24, 25, and may be turned by a hand-lever 26, or by a lever 41 actuated when the carrier 4 meets a stop, so as to disengage the friction wheels 18, 17 and bring the brake drum 27 against the brake shoe 28. The bearings of the shafts 16, 13 are mounted in spherical sets in rings 49, Fig. 3, and are self-adjusting. The brake shoe 28 is supported by a lever system 56, 58, 59, Fig. 4, with fixed pivots at 57, 60 and with an adjustable spring 62. so that' the brake is applied gradually, the action commencing as soon as the drive is disengaged. The platform 5 is provided with hinge eyes at each of three sides, so that it may tilt in any of three directions according to the setting of the hinge pin and of the tilting-rope 29. The frame 1 of the hoist folds about the hinge 67.
Patent GB-1114859-A (GB)
Title: Improvements in or relating to drive systems
Inventor: NASVYTIS ALGIRDAS LEONES
IPC: F16H13/08
Filed: 1965-06-16
Abstract: 1,114,859. Friction gearing. TRW Inc. 16 June, 1965, No.25501/65. Heading F2Q. An epicyclic reduction gear comprises an input roller 100, a ring 140 and sets of interengaged planetary rollers 110 . . . 112, 120 . . . 125, 130. . . 135 which are stepped, the larger step engaging a roller nearer the gear axis whilst the smaller step engages a roller or the ring 140 further from the gear axis. Each roller engages other rollers or the ring 140 at three points so that the whole assembly retains the relative positions shown without any supporting bearings. An output carrier 150 has slats 152 in which the shafts of the outer rollers 130 . . . 135 engage with radial freedom.
Patent GB-1148456-A (GB)
Title: Dihydrotricyclopentadienylamine and its production
Inventor: KIEFER HANS
IPC: C08K5/17
Filed: 1966-06-08
Abstract: 1,148,456. Dihydrotricyclopentadienylamine. BADISCHE ANILIN- & SODA-FABRIK A.G. 8 June, 1966 [9 June, 1965], No. 25518/66. Heading C2C. [Also in Division C3] The invention comprises a dihydrotricyclopentadienylamine having the formula and a process for the preparation thereof wherein tricyclopentadiene is reacted with at least five up to twenty moles of hydrocyanic acid and sulphuric acid in the proportion of more than one but not more than three moles per mole of tricyclopentadiene in the presence of one to three moles of a di-n-alkyl ether at a temperature of from - 5‹ to + 35‹ C. and hydrolysing the resultant N-dihydrotricyclopentadienyl formamide. The product is a rubber accelerator. Examples are furnished.
Patent GB-627258-A (GB)
Title: Improvements in and relating to controllable pitch axial-flow fans
IPC: F04D29/32
Filed: 1946-08-27
Abstract: 627,258. Pitch- - changing mechanism. CIERVA AUTOGIRO CO., Ltd., PULLIN, C. G., SHAPIRO, J. S., and WATSON, K. Aug. 27, 1946, No. 25577. [Class 114] Pitch changing of an axial flow fan, the blades 9, Fig. 2, of which are so mounted that the aerodynamic centrifugal moments acting on them tend to reduce pitch is effected by partial relative rotation about the fan axis of a common control member, e.g. a crownwheel 13 which is subject to a force exerted by centrifugal counterweights 34, displaceable in a plane normal to the fan axis and in such a manner as to rotate the control member to coarsen the pitch, the counterweight pitchcoarsening moments being substantially equal to the pitch reducing moments so as to result in the control effort being limited to that necessary for overcoming friction inertia and back-lash between the control member and the blades at all times when the fan is running. Each fan blade 9 is screwed and pinned to a shaft 9b mounted for rotation about its own axis in bearings 24, 26 and is carried by a common hub drum 7c to which are bolted flanged sleeves 7a, 7b, themselves supported by a fixed sleeve 6 and a hollow fan axle 5 respectively. The fan drive is applied to the end of the sleeve 7b. The crown-wheel 13 meshes with sectors 14 of the blade roots and normally rotates with the fan wheel, but is rotated relatively thereto to effect pitch changing by sliding a sleeve 10 axially along the axle 5 to displace studs 11a mounted on a rotating collar 11, along axial and helicallyinclined slots 17, 18 in the hub sleeve 7a and the crown-wheel shell 12 respectively. The counterweights 34, three in number, are carried by links 29 pivoted on symmetrically and circumferentially disposed pins 28 carried between parallel flanges of a bracket 27 secured to the wheel 13. Three forked brackets 30, Fig. 1, secured to the fan wheel carry pivoted split links 32 which articulate with the links 29 on pins 33 carrying the weights 34. The pivots 28, 31 being equiradiused and the pivot 33 being of smaller radius with respect to the fan axis, centrifugal force tends to throw the links 29, 32 into compression and force the pivots 28, 31 of each pair apart, thus tending to rotate the wheel 13 to coarsen the pitch. The geometry of the linkages is chosen so that the pitch coarsening effort balances the pitch fixing effort.
Patent GB-965797-A (GB)
Title: A triggered saw-tooth generator
IPC: H03K4/20
Filed: 1961-07-14
Abstract: 965,797. Sawtooth generating circuits. LICENTIA PATENT - VERWALTUNGS G.m.b.H. July 14, 1961 [July 20, 1960], No. 25602/61. Heading H3P. In a time-base generator of the type in which an integrator 2 is controlled by a bi-stable multivibrator 1, the bi-stable circuit 1 is reset, when the output of the integrator has reached the required value, by a potential divider 13 feeding a diode 14. Re-triggering during the flyback is prevented by a delay circuit comprising a further potential divider 15, a pair of diodes 17, 18 and a capacitor 19 connected to the junction of the diodes. As described, potentiometer 20 may either be adjusted so that the complete circuit is self-oscillating or may be set to provide sensitive triggering by pulses at line A. Initially, diode 22 is conductive and diodes 14, 17, 18 non-conductive. A negative trigger pulse at A reverses the state of the bi-stable circuit 1 and initiates a linear voltage sweep at the output C of the Miller integrator 2. When the sweep voltage at C rises above that at F, diode 14 becomes conductive, blocking diode 22. Capacitor 19 is meanwhile charging via diode 17. When the sweep voltage fed to G via diode 14 reaches a predetermined value, the bi-stable multivibrator 1 becomes reset, terminating the sweep from the integrator 2. Capacitor 19 now discharges slowly via the reverse resistance of diode 17. When the voltage at G falls below that at D, diode 18 becomes conductive and prevents further triggering of the bi-stable circuit 1 until the end of the flyback, i.e. until the end of the discharge of capacitor 19. Germanium diodes should be used at 14, 17, 18 and a silicon diode at 22. If diode 17 is replaced by a silicon or thermionic diode, it should be by-passed by a resistor.
Patent GB-166834-A (GB)
Title: Improvements in and relating to kilns
IPC: F27B1/14
Filed: 1920-09-06
Abstract: 166,834. Nelson, J. Sept. 6, 1920. Gaseous-fuel furnaces.-A down-draught shaft kiln for the manufacture of Portland cement is heated by a burner 17 consisting of two semiannular parts with downwardly directed nozzles 18. The combustible mixture is supplied through pipes 20, at the lower ends of which are rotary hit-and-miss valves operated simultaneously with the gas valves.
Patent GB-476776-A (GB)
Title: Improvements relating to the starting of internal combustion engines
Filed: 1936-09-22
Abstract: 476,776. Starting prime movers. BOSCH AKT.-GES., R. Sept. 22, 1936, No. 25685. Convention date, Sept. 24, 1935. [Class 38 (iv)] In starting-apparatus for internal-combustion engines in which several electric starting motors receive their main current only when all are coupled to the engine, the circuits which effect the coupling are switched on electro-magnetically under the sole control of a hand switch. In the arrangement shown in the Figure, the armatures of the two starter motors 1, 2 move axially and rotate slowly to engage pinions 21, 22 with the fly-wheel gear ring 23, when current is supplied from battery 24 through auxiliary exciting windings 5, 6. As soon as both pinions are in gear, starting current is supplied through the main exciting windings 3, 4. When the starter switch 25 is first closed, the movement of electromagnetic switches 7, 8 is limited by trip levers 17, 18 so that the bridge members 11, 12 engage only contacts 13, 14 and current is only supplied to auxiliary winding 6. When engagement of the corresponding pinions 22 is effected, lever 18 is tripped by disc 20 on the armature shaft, and the bridge member 12 engages both of its contacts so that bridge 11 and auxiliary winding 5 of the other starter motor are supplied with current from the battery. As soon as pinion 21 is engaged and lever 17 tripped, bridge 11 makes full contact with contacts 13, 15 and the full starting current is supplied to both motors. In a modification, the switch members 11, 12, when fully engaged, energize a relay switch by which the full current is supplied. In a further modification, two such switches, one for each starter motor, are provided. When starter pinions slidable on the armature shafts are employed, contacts closed thereby complete, through relays, the main starting circuits. If separate exciting windings are dispensed with, a resistance in series with each field is cut out only when both motors are engaged.
Patent GB-476707-A (GB)
Title: Improvements in or relating to closures for bottles and other containers
IPC: B65D41/12
Filed: 1936-09-22
Abstract: 476,707. Closures for bottles. PARKER, C. J. Sept. 22, 1936, No. 25727. Drawings to Specification. [Class 125 (iii)] A crown-cork &c. for a bottle &c. has a cork &c. liner, covered by a transparent facing sheet attached therto by an opaque adhesive. The adhesive may contain a pigment, and the transparent covering material may be that sold under the Registered Trade Mark " Cellophane," cellulosic esters &c. The adhesive may be guttapercha. Specification 368,328 is referred to.
Patent GB-1079467-A (GB)
Title: N-(4-amino-2-butynyl) cyclicimides
IPC: C07D211/88
Filed: 1965-06-17
Abstract: Novel compounds of general formula <FORM:1079467/C2/1> wherein R1 is H or C1-C5 alkyl, n is 2 or 3, and R2 and R3 are C1-C5 alkyl or together with the nitrogen atom are pyrrolidino or piperidino are prepared by reaction of the amine HNR1R2, formaldehyde and a compound of formula <FORM:1079467/C2/2> The N-propargylimides of the last general formula above are prepared by reaction of propargyl bromide and the appropriate amide.
Patent GB-535254-A (GB)
Title: Improvements in the hardening of synthetic urea-formaldehyde or like products
IPC: D06M15/423
Filed: 1939-09-14
Abstract: 535.254. Synthetic resin adhesives. YORKSHIRE DYEWARE & CHEMICAL CO., Ltd., BEDFORD, C. S., FOURNESS, R. K., and BEDFORD, J. G. Sept. 14, 1939, No. 25807. [Class 2 (iii)] The crazing " of urea-formaldehyde resins, when used as liquid adhesives, is prevented by effecting the final hardening of the resin in the presence of phthalate or substituted phthalate ions as hardening agent, and in the absence of a polyhydric alcohol or derivative thereof. Specified substances capable of yielding the phthalate ions are phthalic anhydride, ammonium hydrogen phthalate, di-ammonium phthalate, sodium ammonium phthalate, and potassium hydrogen phthalate, and these may be used in the solid state or in solution, by previous mixture with the adhesive or by previous application to one or both sides of the joint. Other compounds also may be present in the hardener, and specified additions are ammonium and substituted ammonium compounds, and resorcinol. Examples are given. The Provisional Specification is not limited to the use of phthalate ions, but mentions the use of any dicarboxylic acid. Further, it is stated in the Provisional Specification that the invention is applicable to phenol-urea and amine-aldehyde resins.
Patent GB-337867-A (GB)
Title: Improvements relating to metal extrusion presses
IPC: B21C25/04
Filed: 1929-08-24
Abstract: 337,867. Hydraulik Ges., and Schlenstedt, O. Aug. 24. 1929. Squirting.-A press for extruding metal tubes of the kind in which the container is movable relatively to a hollow ram and the block is perforated by a mandrel passing through the closure of the container, the closure which acts as a guide for the mandrel is detachably connected to the container so as to act as an abutment for the tube to facilitate strip. ping from the mandrel. The block 9 is placed in the container 2 on the die 4 carried by the stationary hollow ram 3 and the closure 6 through which the mandrel 13 passes is then secured to the container by angular extensions 7 and bayonet grooves 8. The press piston 10 is then moved forward and the head 12 of the mandrel is secured in the recess 11 therein either by wedge-shaped jaws 14 or by forming the head and the entrance to the recess of the shape shown in Fig. 4 and rotating the mandrel after insertion therein. Forward motion of the piston 10 first causes the mandrel to perforate the block and then moves the container to form the tube. Withdrawal of the press piston removes the mandrel from the tube and the closure is then removed for the insertion of a fresh block. The block may be perforated before insertion in the container, and the piston 10 may be stationary and the ram 3 movable. The mandrel may also be rigidly secured to the piston 10.
Patent GB-260415-A (GB)
Title: New or improved ink or other liquid receptacle
IPC: B43L25/02
Filed: 1925-10-17
Abstract: 260,415. Knight, E. O. Oct. 17, 1925. Inkstands. - An inkstand or other liquid receptacle is provided at the upper part of the main container with an integral or normallyfixed dipping-well located below a dipping-orifice in a removable cover, the parts being arranged so that the upper portion of the liquid in the container is admitted to the dipping-well when the receptacle is tilted, while redundant liquid can flow back into the container. As shown in Fig. 1, a channel 3 is formed around the upper part of the receptacle 1, a portion 4 of the channel serving as the dipping-well. A slot 7 or other aperture extending upwardly from the top of the well 4 is formed in the wall of the channel. A cover 5, having a depending tubular portion 6 located above the well 4 is detachably secured to the receptacle. The width of the well 4 and of the diametricallyopposed part of the channel 3 is preferably wider than the remainder of the channel, and a filter may be placed in the channel. The floor of the well 4 may be stepped and the tubular portion 6 arranged to be displaceable in the cover 5. As shown in Fig. 7, a detachable trough 16 having a stepped bottom 8 - - 10 is mounted in the upper part of the container by means of lugs 17 located in slots in the wall of the container . Liquid enters the trough, when the receptacle is tilted, through the annular space between the trough and the container, and excess escapes through the apertures 7, the trough being prevented from displacement by extensions 19 of the lugs 17 engaging the cover 5. In other modifications, the cover 5 is formed to prevent escape of liquid should the container be overturned, the lower end of the part 6 acting to prevent displacement of the trough. According to a modification described in the Provisional Specification, a number of small cylindrical containers of graduated depth are mounted in the upper part of the receptacle.
Patent GB-398032-A (GB)
Title: Improvements relating to the production of lubricating oils, kerosene and other improved hydrocarbons from petroleum stocks by treatment with aluminium chloride
IPC: C10G29/12
Filed: 1932-09-20
Abstract: Lubricating oils, kerosene &c. are obtained from heavy petroleum stocks by treatment with aluminium chloride at temperatures below 150 DEG  C., hydrogen chloride or chlorine gas being passed through the materials during the reaction. Hydrocarbons of lower molecular weight may be added to the heavy stocks prior to or during the reaction. The oil obtained is purified by treatment with fine clay and hydrated lime followed by filtration, or with sulphuric acid, or by heating to 232-287 DEG  C. to remove suspended sludge.  Oklahoma crude petroleum, after treatment with dry hydrogen chloride for 4 hours is heated to 135 DEG  C, and stirred for 2 hours with 10 per cent by weight of aluminium chloride.  After allowing the sludge to settle the oil is decanted and steamed at 232 DEG  C. with 0,5 pounds of fine clay per gallon and 0,6 pounds of hydrated lime per barrel. Examples of methods of carrying out the process as applied to lubricating distillates, pressure still tar, and light gas oil are given.
Patent GB-676935-A (GB)
Title: Improvements in or relating to electric arc welding
IPC: B23K9/18
Filed: 1950-10-26
Abstract: 676,935. Uniting by fusion. RHEINISCHE ROHRENWERKE AKT.-GES. Oct. 26, 1950 [Oct. 26, 1949], No. 26192/50. Class 83 (iv). In welding together steel members by the submerged-arc process and by a single traverse of successive electrodes along the seam at such a speed that at least the major part of the molten steel produced by one electrode has solidified before the next electrode reaches it, the melting temperature at this electrode is such that the solidified melt produced by the preceding electrode is only re-melted to a negligible extent. The amperage and voltage of the current supplied to each electrode may be separately adjustable, the power supplied to any electrode preferably being greater than that supplied to the electrode following it. If plates 1, 2, 80 mms. thick, are to be joined by a non- symmetrical seam the smaller portion 3 may be welded by a known process to a depth e, e.g. about 25 mms. Then the groove 4 is welded to a depth of about 60 mms. by means of two electrodes 6, 7 about 170 mms. apart, the first electrode 6 may be 8 mms. in diameter and supplied with 2400 amps, at 48 volts while the electrode 7 may be 7 mms. in diameter and supplied with 1250 amps. at 45 volts. The distance between the heads carrying the electrodes is preferably adjustable so that these may be anything between 50 and 250 mms. apart. The welding powder 11 may have a lower silica content than usual, e.g. under 40 per cent.