baber/WOPTO huggingface dataset:
Patent GB-1207085-A (GB)
Title: An improved control device for hydraulic installations
IPC: F15B1/027
Filed: 1969-02-06
Abstract: 1,207,085. Fluid-pressure servomotor systems. GEWERKSCHAFT EISENHUTTE WESTFALIA. Feb.6, 1969 [Nov.7, 1968], No.6435/69. Heading G3P. A pump 1 supplying a hydraulic consumer system 10 is controlled by a device having a piston-  operated main valve 5 which is moved to a position in which the pump is prevented from supplying the system when the pressure on a valve 20 exceeds a predetermined maximum value and is returned to the position shown when the pressure on a valve 28 falls below a predetermined minimum value, the maximum and minimum values being independently adjustable. Fluid is supplied by the pump through a line 2 and a non-return valve 9 into the system 10 until the pressure has risen sufficiently to open the valve 20 against an adjustable spring load 21 and act on the piston 16 to open the valve 5. The pump delivery is now returned through a port 12 to the reservoir 13 and the valve 5 is held open as the system pressure falls by the fluid trapped behind the piston 16 when the valve 20 closes. A further fall in system pressure permits an adjustable spring 34 to open the valve 28 and release the trapped liquid so that the valve 5 is again closed by a spring 14. The valves 20 and 28 may be replaced by spool valves.
Patent GB-306291-A (GB)
Title: Improvements in self centring chucks for wheel axles
IPC: B23B5/34
Filed: 1928-03-01
Abstract: 306,291. Reed, F., W., and Craven Bros. (Manchester), Ltd. March 1, 1928. Lathes ; chucks.-In machines for ending and centring axles for railway and like wheels, the axle a is gripped at each end by a chuck e rotatable by means of a gear g in a headstock f. Three radial jaws b in each chuck are attached to blocks c slidable radially by means of wedges h moved axially by a yoke i and two pneumatic plungers j, k, mounted at diametrically opposite parts of the headstock. The wedges have surfaces n, of different inclination, the latter giving a powerful closing action, which engage pivoted pads o in the blocks c, and the blocks are moved outwards by springs d. The pneumatic cylinders are arranged so that they exert their greatest pressure in the direction causing opening of the chuck in order to make this action certain. The inclination of the surfaces n<1> of the wedges is such that the wedges are self-retaining in their gripping position, but they are further secured by spring plungers p arranged at right angles to the line of movement of the blocks c and engaging surfaces on the wedges inclined oppositely to the surfaces n, n<1>.
Patent GB-649144-A (GB)
Title: Moulded rubber toys
IPC: A63H9/00
Filed: 1948-03-01
Abstract: 649,144. Fibre coated moulded toys. PLAYLASTIC TOY CO., Ltd., and KLEIN, P. March 1, 1948, No. 6491. [Classes 93 and 132 (iii)] Moulded rubber toys with projecting portions are at least in part provided with an adherent covering of short fibres e.g. cotton flock. The toys may be coated with a vulcanizable adhesive, tumbled in the short fibres and then the adhesive vulcanized. The toys may be rubbed with the fibres prior to tumbling and they may be coated with a bonding agent consisting of a dispersion of a filler in a rubber solution e.g. 70 per cent filler (such as barium sulphate) and 30 per cent rubber, dried and then coated with the vulcanizable adhesive. The adhesive may be a solution of a mixture of degraded rubber and a resin the amount of resin being e.g. 5-10 per cent of the weight of the mixture and may contain a small amount (e.g. 0.3 per cent) of a viscosity reducing agent such as acetone, alcohols or the substance sold under the trade name " Bondogen ". A naphtha solution of rubber containing an inert filler and a softener e.g. paraffin oil may be used as a combined bonding agent and adhesive. The vulcanization may be carried out by means of sulphur chloride vapour. Different coloured flocks may be applied to different parts of the toy which may be a moulded rubber doll as shown in the drawing.
Patent GB-214396-A (GB)
Title: Safety attachments for the drawshafts of tar boilers, tarspraying machines and such like
IPC: B60D1/04
Filed: 1923-03-07
Abstract: 214,396. Dewhurst, H. B., Molyneux, J., Dewhurst, J. A., and Hoon, F., (trading as Municipal Appliances Co.). March 7, 1923. Shafts.-In a safety release device for horse-drawn tar-boilers &c., drawbars b secured to the shafts a have open topped gaps b<2> held in engagement with bolts &c. h on the axle or frame of the boiler by jaws c of a two-limbed lever pivoted at c<1> to the draw-bars and having a tail piece c<3> working in a slotted guide e depending from a transverse stay d. The jaws c are held in the engaging position by a transversely sliding rod f passing through holes e<2> in the guide e and tail piece c<3>. When released the lever falls until the tail piece rests on a. stop in the guide e.
Patent GB-125091-A (GB)
Title: Improvements in the Manufacture of Nitro-glycerine.
Inventor: BAXTER JOHN GEORGE
IPC: C06B21/00
Filed: 1916-05-06
Abstract: 125,091. Baxter, J. G. May 6, 1916. Nitroglycerine.-Apparatus for the continuous manufacture of nitroglycerine comprises the nitration vessel shown in Fig. 1 and the separator shown in Fig. 2. The nitration vessel is divided into two communicating compartments by an annular wall 6 provided with spaces 7 in its lower edge, and is furnished with cooling-coils 5, airagitation pipes 8, inlet-pipes 10, 11 for supply of mixed acid and glycerine, and an outflow pipe 12. A cross-wall 13 for preventing premature mixing of the acid and glycerine, thermometers 2, 3, a fume exit 1, and a discharge outlet 9, are also provided. The separator comprises a lower compartment 23, an upper compartment 28, and a neck 21 provided with an inspection window 22 ; the mixture of nitroglycerine and waste acid enters by the pipe 17 and separates; the acid flows away by a pipe 18 and the nitroglycerine by a pipe 19, to which is attached a rubber tube 20 which can be raised or lowered to regulate the outflow from the pipes 18, 19; a cooling-coil 25, thermometer 24, fume exit 27, and discharge outlet 26, are also provided.
Patent GB-549529-A (GB)
Title: Calculator respecting water streams used for fire fighting or other purposes
IPC: G06G1/12
Filed: 1941-05-22
Abstract: 549,529. Calculating-apparatus. MORRIS & SONS, Ltd., J., and STEVENSON, G. O. May 22, 1941, No. 6558. [Class 106 (i)] A device for use in solving problems relating to water-streams for fire-fighting or other purposes comprises a circular disc a, a segmental piece b with a part cut away, and a transverse scale c, all .connected by a centre-pin p. In use, the segment b is positioned so that the curved portion b<SP>o</SP> registers with a circle a<SP>2</SP> showing the size of nozzle to be used. Scale c is then positioned according to requirements as to any one of discharge per nozzle, pressure at nozzle, height or reach of jet, or allowable loss of pressure per 400 ft. of hose, when the required information can be obtained from the other scales.
Patent GB-564148-A (GB)
Title: Sewing machine table
IPC: D05B75/06
Filed: 1943-04-23
Abstract: 564,148. Tables for sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). April 23, 1943, No. 6560. [Class 52 (iii)] The sliding top 18 of a table having a well 14 to receive a sewing machine is supported in the open position by a swinging arm 26 urged by a spring 30 into the supporting position and engaged by the end of the sliding top to return it into the plane of one leg 10 of the table as the top is closed. The sliding top has marginal walls 19, 20 and is fitted with channel guide members 21 on its inner corners to engage the edge of the fixed part 13 of the table top; and with angle pieces 22 on its outer corners. A stop screw 23 on the part 13 is engaged by one angle piece 22 to prevent complete withdrawal of the sliding top. The pivot 27 of the supporting arm engages a hole in a cut-away part of the leg occupied by the arm when closed, and also a hole in a plate secured to the underside of the fixed top. A block 33 carried by the sliding top engages the end 29 of the supporting arm to move the arm against its spring in closing the top.
Patent GB-1445549-A (GB)
Title: Process for the preparation of a gas containing hydrogen and  carbon monoxide
IPC: C01B3/12
Filed: 1975-02-17
Abstract: 1445549 Preparing gas containing H 2  and CO SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 17 Feb 1975 [18 Feb 1974] 6590/75 Heading C5E A process for preparing gas containing H 2  and CO comprises incompletely burning a liquid hydrocarbon fuel with oxygen or an oxygen-containing gas in a first reaction zone, separating at least part of the soot from the product gas by cyclonic action, and converting the separated soot into H 2  and CO in a second reaction zone. In a preferred embodiment, Fig. 2, fuel oil 2, oxygen-containing gas 3, and steam 4 are fed into a first reaction zone 1, the products then passing into a heat exchanger 5 before entering a cyclone 21 at 24 via an injector 44. Soot 30 separated by the cyclone passes to a gathering line 32, and gas 27 still containing soot is fed to an injector 39 receiving water from a washtower 33, then to a separator 40. Partly washed gas 41 then enters the washtower 33 for complete removal of soot. Washtower products are the product gas 42 and sooty water 34 some of which 35 is recycled and replenished at 36, and the rest 38 is fed to the injector 39. The wet soot effluent 43 from the separator is fed to the injector 44 which receives the sooty gas from the heat exchanger 5, the water thereby being evaporated from the wet soot. Further cyclones 20, 22 form part of further first reactor/washer combinations (not shown) and also feed soot into the gathering line 32 which in turn feeds a second reaction zone 12 which is also fed with oxygen-containing gas 13, and, if used, steam 14 and more fuel oil 15. The product gas 19 emerges via a heat exchanger 16.
Patent GB-825943-A (GB)
Title: Improvements in stacking trays
IPC: B65D21/02
Filed: 1956-03-03
Abstract: 825,943. Trays. CLARK, W. June 3, 1957 [March 3, 1956; Oct. 16, 1956], Nos. 6760/56 and 31450/56. Class 18. A shallow rectangular tray for stacking is provided with a downwardly facing peripheral surface around the walls or base adjacent their meeting edges, so that the tray can be supported on an identical one below it by the line contact between the said surface and the upper edges of the tray below. The tray may be made of sheet metal, wire or tubing and various forms of pressed or welded construction are possible.
Patent GB-230845-A (GB)
Title: A vaporizer for internal combustion engines using heavy fuel
IPC: F02M21/10
Filed: 1925-03-12
Abstract: 230,845. Fabbrica Carburatori Memini. March 13, 1924, [Convention date]. Vaporizers, external.-A vaporizer for heavy fuel mixtures comprises an outer body 0 and an inner body 5 detachably secured in position by a bolt 13. The outer body is provided with an inlet 1 for mixture which flows around the inner body 5 to an outlet 2, and with an inlet 3 for exhaust gases which flow both through an outer chamber 7 and through the inner body 5 to an outlet 4.
Patent GB-227314-A (GB)
Title: Improvements in or relating to starting mechanism for gasoline rock drills
IPC: E21B1/34
Filed: 1924-03-17
Abstract: 227,314. Rice, J. V. March 17, 1924. Pumps. - In an internal-combustion engine for rock-drills, of the kind in which an extension 4 of the piston compresses air into a reservoir for starting or charging, a non- return valve 16 for the admission of air to the pump space 14 is under the control of a diaphragm 13 exposed to the pressure in the air reservoir, so that the valve 16 is held open and air ceases to be compressed when the reservoir pressure exceeds a predetermined amount. As shown, a pair of similar pistons are connected by a piston-rod 3, one piston carrying the drill and chuck (not shown). The extension 4 compresses air by way of an non-return valve 26 and a pipe 25 to the reservoir, the pipe 25 being connected to the space 50 on one side of the diaphragm 13, which carries a rod 20 abutting against the stem of the valve 16.
Patent GB-267551-A (GB)
Title: Improvements relating to luffing cranes
IPC: B66C23/10
Filed: 1927-03-11
Abstract: 267,551. Demag Akt.-Ges., (Assignees of Maschinenbau Akt.-Ges. Tigler). March 12, 1926, [Convention date]. Jib cranes. - Relates to level-luffing cranes in which the load rope passes directly from the jib-head to a compensating pulley 15 carried by a pivoted lever 14 connected with the jib. A counterweight for balancing the jib is carried by the lever 14 without any other support', the parts being so arranged that the movement of the lever 14 effects both balancing and level luffing, and at the centre of the range of movement, the lever 14 is perpendicular to the line of rope from the hoisting drum 17 to the compensating pulley. This arrangement ensures the minimum change of direction of the rope leading from the drum during luffing. The Specification describes the method of determining graphically the position of the counterweight 15 upon the lever. The lever turns in the same sense as the jib with the counterweight moving in the opposite direction to the jib-head.
Patent GB-123882-A (GB)
Title: Improvements in Vents for Electric Accumulators and Batteries.
IPC: H01M2/12
Filed: 1918-04-24
Abstract: 123,882. Ramsbottom, H., and Lithanode, Ltd. April 24, 1918. Gas exits. - A gas exit consists of three tubes D, E, F, the outer one D of which communicates with the cell through openings d', d<2>, the inner tube F communicating with a chamber G having a tube g leading to the atmosphere. The openings d<2> are formed by cutting out and bending up portions of the bottom of the tube D. Baffles e<3>, e<4>, f<1> may be provided. In a modification, the baffles and the chamber G are dispensed with.
Patent GB-1458768-A (GB)
Title: Sound reproduction devices
IPC: G11B25/04
Filed: 1974-02-15
Abstract: 1458768 Gramophone YUGEN KAISHA WATANABE KENKYUSHO 15 Feb 1974 [29 June 1973] 6954/74 Heading G5R In a battery operated gramophone having a first compartment 1a incorporating a speaker diaphragm 25 and a second compartment 1b with a turntable 3, pick up arm 20 and drive motor 8 mounted on gimbal bearings 10, 11, the depression of a rod 6 extending outwardly of the gramophone casing moves the turntable downwards on shaft 4 thus moving a peripheral rubber drive ring 3b on the turntable into engagement with the motor shaft 13 to tilt the motor against the action of a plate spring 15 so that the motor terminals 16 engage contacts 17 to apply the battery supply to drive the motor and hence the turntable. Downward movement of the turntable releases pick up stylus 23 from a recess 12 in the turntable so that the pick up arm is returned by spring 19 to a position over the start of a record formed in the turntable surface. On release of the rod the turntable is moved upwards by spring 15 into an intermediate position in engagement with the stylus and a dome 24 on the pick up arm is urged into engagement with a reinforcing member 26 at the apex of the speaker diaphragm. After the record is played the stylus drops into recess 12 allowing the turntable to be returned to its initial position during which movement the motor tilts disconnecting its power supply.
Patent GB-799796-A (GB)
Title: Improvements in or relating to reclining chairs
Inventor: LUCKHARDT JOHANNES
IPC: A47C1/034
Filed: 1956-03-07
Abstract: 799,796. Reclining chairs. LORENZ, A. "March 7, 1956, No. 7111/56. Class 52(2) A reclining chair with a back-rest 14 rigidly interconnected with a seat 16 to form a unit 12 rockably mounted on support 10 about an axis 18 has guiding links 22, 24 pivoted to the seat at 28 and to the support at 30 to form a toggle control linkage, biased by a spring or the like 34, to automatically block the unit 12 in the upper position, the pivot 32 being past dead-centre and link 22 engaging a stop 38. To move to reclined position the link 22 is moved to other side of dead-centre by a handle 26. A stop surface 40 engages the seat in its lowest reclined position.. In a modification, Fig. 3, link 122 is coupled by a link 154 to a leg rest 150 pivoted at 152 to the seat 116, the leg rest forming a counterbalance to replace spring 34. In a further modification, Fig. 5, the leg rest is pivoted to the support instead of the seat and in yet another modification, Fig. 7, the leg rest 350 is mounted on a lazy tong linkage having members 353, 354, 359.
Patent GB-1263621-A (GB)
Title: A printing machine
IPC: B41F15/08
Filed: 1969-02-10
Abstract: 1,263,621. Printing apparatus. VITOSETABS VITOUX S.A. 10 Feb., 1969 [8 Feb., 1968], No. 7144/69. Heading B6C. An endless belt printing screen 18 has at its edges, on its inner face, belts 17, preferably toothed integral with or attached to the screen, which belts co-operate with pulleys 11, 13, having side cheeks 16a to prevent lateral wandering and axially adjustable on their shafts for lateral tensioning of the screen. A normally stationary squeegee 28 is mounted so as to be adjustable longitudinally of the screen, which is preferably of silk, nylon or stainless steel. The screen is fed with ink by a duct and roller and an ink recovery blade 32 removes surplus ink. Alternatively (Fig. 6, not shown) the screen may be lined with ink absorbent material and the ink pressed through by a roller squeegee bearing directly on the screen or on an inner impermeable belt (46). The ink absorbent lining may be divided into zones (42a, 42b, 42c) by partitioning, each zone being separately inked for multi-colour printing.
Patent GB-578973-A (GB)
Title: Improvements in and relating to relief valves
IPC: F16K17/04
Filed: 1944-04-18
Abstract: 578,973. Locking screws. CUTHBERT, W. A., WARNER, W. C., HARDING, A. T., and BURT, R. H. (trading as WARNER ENGINEERING CO.). April 18, 1944, No. 7183. [Class 89 (i)] [Also in Group XXIX] A screwed plug 5 forming the loading spring abutment of a relief valve 9 is locked in its adjusted position by screws 17 driven across deep grooves 16 cut in the periphery of the plug.
Patent GB-217327-A (GB)
Title: Improvements in or relating to vacuum electric tubes
IPC: H02M7/00
Filed: 1923-03-15
Abstract: 217,327. Robinson, E. Y. March 15, 1923. Thermionic amplifiers and generators. - The vacuum valves used in systems for generating oscillations or single phase or polyphase alternating-currents are operated with earthed anodes. In one arrangement, Fig. 5, a directcurrent generator 25 is connected in series with a thermionic valve 22 and the primary winding of a transformer 24, the anode 26 of the valve being earthed, and alternating potentials are applied between the grid and the filament. The latter may be heated by a battery 23, or by alternating current obtained from the output circuit, the battery being then employed only for starting the device. Alternating currents may be diverted from the generator 25 by shunting it by a condenser or tuned circuit. In a modified arrangement, Fig. 7, the filamentheating current is supplied from the secondary winding of a transformer 34, and the space current is led in equally at both ends of the filament by making a connection to the middle point of this winding. Controlling oscillations are applied, to the grid through a transformer 36, and the output circuit 33. which may be a wireless antenna, is tuned to the frequency of these oscillations. In another arrangement, Fig. 8, the controlling oscillations are obtained by means of a back-coupling 41 from the output circuit 33. The space current) is led to the middle point of a choking-coil 39 in shunt with the filament. each half of the choking-coil being shunted by a condenser 40. Three-phase currents may be obtained from a direct-current source by employing three valves with earthed anodes and cathodes connected to the primary windings of transformers, from the secondary windings of which the three-phase currents are obtained. The grids of the valves are connected to the star-connected secondary windings of a threephase transformer, the mean voltage of the grids being adjusted by regulating the potential of the star point. In a modified arrangement, Fig. 10, a pair of valves 50, 51 is employed for each phase. The grid potentials are derived from a local three-phase alternator 53 connected to the primary windings of transformers 54, the same alternator also supplying the filament-heating currents through a three-phase transformer 62. The output current from each pair of valves flows alternately through the half-windings 58, 59 of transformers 60, the secondaries 61 of which supply the required three-phase current. Specifications 209,834 and 223,650 are referred to.
Patent GB-1457078-A (GB)
Title: Pyrazolo pyridine derivatives
IPC: A61P25/00
Filed: 1974-02-19
Abstract: 1457078 Pyrazolo[4,3-c]pyridine derivatives E R SQUIBB & SONS INC 19 Feb 1974 [12 March 1973] 7523/74 Heading C2C The invention comprises compounds of formula and their N-oxides and acid addition salts, wherein R and R<SP>3</SP> are each Ph, thienyl or pyridyl; R<SP>1</SP> and R<SP>2</SP> are each H, C 1-8  alkyl (possibly HO- or Ph-substituted) or C 2-9  alkanoyl; and said Ph groups may be subsituted by Cl, F, CF 3  or C 1-8  alkyl or alkoxy. These compounds are prepared by reacting R<SP>2</SP>NHNH 2  with the appropriate 3,5-bis(arylmethylene)-1-R<SP>1</SP>-4-piperidone, followed if desired by N-alkanoylation. Also prepared as starting material is 3-benzylidene - 1 - methyl - 4 - piperidone. Therapeutic compositions having C.N.S. dedepressant activity comprise compounds of the above formula, and may be administered orally (preferably), rectally, intraperitoneally, subcutaneously, intramuscularly or intravenously.
Patent GB-1198776-A (GB)
Title: Container made from Thermoplastic Sheet, for objects such as Ampoules, Vials and Gelatine Capsules
IPC: B65D73/00
Filed: 1968-02-15
Abstract: 1,198,776. Containers, e.g. for ampoules. O. HÍFLIGER and R. KARG [trading as HÍFLIGER & KARG]. 15 Feb., 1968, No. 7540/68. Heading B8C and B8P. A container formed of thermoplastic sheet material for ampoules or the like has chambers with elastically deformable constrictions across the mouth to return the ampoules in the chambers while permitting them to be forced past the constriction in loading. A transparent thermoplastic sheet 1 has constrictions 4 to retain pressed-in ampoules 5 in recesses in the sheet.