baber/WOPTO huggingface dataset:
Patent GB-864659-A (GB)
Title: Improvements in solenoid-operated fluid-flow control valves
IPC: F16K31/40
Filed: 1957-07-10
Abstract: 864,659. Valves. HOSKINS, S. W. July 10, 1957, No. 21903/57. Class 135. Between the walls 3A, Fig. 1, of a valve casing 2 and an inner-tube assembly 3 is disposed a solenoid coil, not shown, whilst coaxially disposed in the assembly is a brass inlet 1 and a soft-iron outlet 9, the inlet 1 having a skirt 11 to the lower end of which is threaded a soft-iron polepiece 14 that co-operates with an armature 13 capable of a small axial movement in a chamber 12 in the skirt 11; the armature has a pilot valve 17 adjustably mounted therein, the valve 17 embodying a conical tip 17A with opposed flats which coacts with a pad 16 of elastically deformable plastic material to control a passage 26 through the polepiece. Slidable over polepiece 14 and skirt 11 is a brass main-valve closure 8 that co-operates with a seat 10 on the outlet 9. With the solenoid de-energized a spring 28 in a chamber 21 of the closure 8 urges the latter on to its seat 10 so fluid entering the inlet 1 passes through an annular space 7 between the assembly 3 and the closure 8 and enters chamber 21 via an orifice 22 from whence it flows by axial passages 20 to the chamber 12 between the polepiece and armature, and since a spring 13A unseats the valve 17 the fluid in chamber 12 escapes through passage 26 to the outlet 9. A pressure difference is in consequence created between the opposing faces of the closure 8 and the latter opens when the inlet pressure in the space 7 below the closure attains a given value. Upon energizing the solenoid the armature 13 is attracted to the polepiece 14 and seats the valve 17 thereby closing passage 26 whereby the difference between the static pressure in the chamber 21 and the dynamic pressure acting beneath the closure 8 in the space 7 seats the closure 8 with the aid of the spring 28. In a modification, the main valve seat 75, Fig. 2, is formed at the inlet, the valve 76 cooperating therewith and being guided in the inner tube assembly 74 by fins 78; slidable in the valve 76 is the armature 81 that has the pilot valve 86 secured therein, which armature coacts with the polepiece 92A that is part of the outlet 92. The pilot valve 86, which controls flow through passages 84, 88, 101 and chambers 79A and 89, has its seat 100 in the polepiece 92A. The main flow to the outlet 96 takes place through the annular space 83. Specification 864,454 is referred to.
Patent GB-1378083-A (GB)
Title: Power wrench
IPC: B25B23/145
Filed: 1972-05-10
Abstract: 1378083 Power wrenches ATLAS COPCO AB 10 May 1972 [19 May 1971] 21918/72 Heading B3N A power wrench comprises an air motor 12 drivingly connected to a drive spindle 21 via a power transmission that includes a clutch with a member 15 axially movable and biased to an engaged position, by a spring 42, a piston 53 axially engageable with said clutch member and slidable in a cylinder, to define a cylinder chamber 50 therewith for positively moving said clutch member into its disengaged position when said cylinder chamber is pressurized, a passage 64, ending in said cylinder, which can be pressurized, said piston being adapted to close said passage when said clutch member is in its engaged position but being adapted to open said passage when said clutch member moves out of its engaged position in response to the torque load rising to a predetermined load. A clutch member 14 has rollers 36 mounted thereon by pins 36. These rollers engage with cam profiles on clutch member 15. In operation, movement of clutch member 15 causes movement of bearing 40. A sleeve 59 is moved with the bearing by a spring 60. This spring normally acts to keep piston 53 in a closed position. Sleeve 59 abuts snap ring 58 and thus moves the piston to the left. Such movement allows pressurized air to enter chamber 50. This causes rapid further movement of the piston until it abuts valve seat 31. During the movement the piston contacts bearing 40 and moves it, together with clutch member 15, to a completely disengaged position. If the piston jams during operation the clutch members will still disengage but there will be a ratcheting effect. Seating of the piston against valve seat 31 shuts off the passage of exhaust air to atmosphere and causes the motor to stop. In a modification, Fig. 6 (not shown), there is no sleeve 57 but instead sleeve 39 has a spring- biased ball mounted therein, which ball engages snap ring 58 in the same manner as sleeve 59. Spring biasing of the ball enables the clutch members to disengage even if the piston jams. In a further modification, Fig. 7 (not shown), piston 53 does not act as a valve and the motor has exhaust ports leading directly to atmosphere. Instead chamber 50 has a passage leading to a valve in the air inlet passage such that when the piston moves to the left the passage is pressurized to cause the valve to shut off the inlet passage.
Patent GB-212190-A (GB)
Title: Improvements relating to electric furnaces
IPC: H05B3/66
Filed: 1923-08-31
Abstract: 212,190. Metropolitan-Vickers Electrical Co., Ltd., (Westinghouse Electric & Manufacturing Co.). Aug. 31, 1923. Resistance grids.-In a furnace having a plurality.of refractory plates 16 for supporting the resistances and constituting a muffle or furnace lining, the plates are supported against inward displacement bv refractory members 19 engaged between and solely supported bv the plates. The resistance consists of a metal bar bent as shown in Fig. 3, alignment being secured by means of projections 17 formed on the plates.
Patent GB-921466-A (GB)
Title: Method for the manufacture of perchlorodiphenylene dioxide
IPC: C07D319/24
Filed: 1960-06-23
Abstract: In a method for the manufacture of perchloro-diphenylene dioxide by pyrolysis of pentachlorophenol, penta chlorophenol or the salts thereof are heated at 150-300 DEG C. in the presence of an isomer or mixture of isomers of the class of the hexachlorocyclohexadienones and/or octachlorocyclohexenones. Mixtures obtained by chlorination of phenol may be employed as starting materials.  Representative of the many solvents specified which may be used in the process are chlorination products of ethylene, cyclopentadiene, anthracene, indane and aniline.  Other solvents are mentioned for addition to the reaction mixture on completion of the reaction.  A mixture of pentachlorophenol and octachlorocyclohexenones for use as starting material is obtained by chlorinating phenol in the presence of antimony pentachloride.
Patent GB-517383-A (GB)
Title: Egg-top cutter
IPC: A47G19/28
Filed: 1938-07-25
Abstract: 517,383. Opening eggs. ROSE, R. July 25, 1938, No. 22101. [Class 28 (ii)] In an egg opener of the kind comprising a flat plate-like body portion upon which slides a flat blade to engage the top of an egg arranged to project through a circular aperture 8 near one end of the body portion, the blade 2 is guided by the provision of a plate 4 below the body portion 1, the plate 4 being connected to the blade through the intermediary of a rib-like element 5 positioned, and adapted to slide, within a longitudinal slot 3 in the body portion. The connection between the parts 2, 5, 4 is effected by screws carrying upper and lower handles 6, 7. The cutting end of the blade may be of V-form.
Patent GB-1402493-A (GB)
Title: Conveyor
IPC: B65G37/00
Filed: 1973-05-09
Abstract: 1402493 Endless conveyers for bottles and similar articles EMHART ZURICH SA 9 May 1973 [9 May 1972] 22191/73 Heading B8A Bottles and similar shaped articles 13 are transferred between conveyers (10) (11) (Fig. 1, not shown) at different levels by being gripped between padded load carriers 7 carried by opposed runs of two co-operating endless chain conveyers 30, 31. Each end of the conveyers 30, 31 may be curved so as to bring the conveyer path at the respective end, parallel with the conveyer with which transfer is to take place. Each conveyer 30, 31, comprises a roller chain 21, each pair of links of which carries a pair of channel-shaped carriers 16. A plastic holder element 15 is secured to a flange 17 of each carrier 16. The article engaging face of the element 15 may be ribbed as at 23. The ribs 23 may be inclined (Fig. 3A, not shown). The carriers 16 are guided by rails 19 which have guide shoes 18 of low-friction plastic material.
Patent GB-842528-A (GB)
Title: A hot gas recirculating chamber device for open fireplaces
IPC: F24B1/18
Filed: 1958-07-12
Abstract: 842,528. Open fireplaces. MARTIN, J. S. July 12, 1958, No. 22427/58. Class 126. A hot gas recirculating device, Fig. 1, to be mounted in the upper part of an open fireplace 1 comprises a substantially domed base 2, a chimney member 6 and side walls 5a, 5b, at least one opening 4 or 4<SP>1</SP> in the base 2 near the side walls connecting the fireplace 1 with the chimney member 6. The upper parts 7, 71 of the side walls may have outlets 8, 81, each connected by a conduit 6<SP>1</SP> to a secondary gas recirculating chamber 12, Fig. 2, which may be in another room, comprising a base 9, side walls 13, 131 with openings 16, 16<SP>1</SP> and a ceiling 14, outer side walls 10, 10<SP>1</SP> defining a channel 17 which with the openings 16, 161 connects the chamber 12 with a chimney member 15, which may discharge into a common stack with the chimney member 6. An inspection door 19 may give access to the chamber 12 for cleaning.
Patent GB-715585-A (GB)
Title: Improvements in and relating to purifiers used in milling
IPC: B02B1/02
Filed: 1952-09-06
Abstract: 715,585. Middlings purifiers. ROBINSON & SON, Ltd., T., and ORMEROD, H. July 10. 1953 [Sept. 6, 1952], No. 22450/52. Class 117 In a middlings purifier such as that described in Specification 713,294 a plurality of transverse exhaust tubes 7 are mounted in a frame 4 above the sieves 3. and arranged on either side of and connect with a central air chamber 3; all the parts vibrating together as a unit. The tubes have a channel formation above them leading to openings in the top of the tube Fig. 4 (not shown)' and each tube is individually removable from the frame.
Patent GB-461249-A (GB)
Title: Improvements in or relating to methods of and means for classifying ores
IPC: B03B5/62
Filed: 1935-08-09
Abstract: 461,249. Wet-separating apparatus. DAMAN, A. C. Aug. 9, 1935, No. 22540. [Class 82 (ii)] Ore pulp is fed to a primary classifying vessel and subjected therein to agitation and aeration, the finer matter in suspension being directed upwardly to a point of overflow and the coarse material being permitted or induced to settle in a quiescent zone located beneath the agitation zone and being discharged from the primary classifying vessel and subjected to a second classification or dewatering treatment whilst being conveyed upwardly to a point of discharge. The primary classification is effected in an element A comprising a circular weir 6 having an adjustable rim 8. Pulp fed by a launder 12 passes between concentric tubes 9, 10 to the lower portion of the vessel 5. The tubes 9, 10 are rigidly connected by cross tubes 15 and an apertured flange 16 and are driven by a worm wheel 13. The tube 10 has an enlargement 17 to receive the pulp from the launder and shields 18 to direct upwardly moving material into the cross tubes 15. Apertures 19 in the tube 9 are controlled by a slide valve 20 to vary the amount of pulp and air passing into the inner tube. An impeller 22, carried by a central vertical shaft 21, is housed in a conical baffle 24 carried by the tubes 9, 10. A stationary baffle 26 overlaps the baffle 24. Scrapers 27 are connected with the baffle 24 or may be carried by a vertically adjustable ring 35 around the mouth 17 of the feed tube. An element B, serving as a secondary classifier or dewatering element and as a conveyer, comprises a tube connected by a flexible elbow 30 with the outlet 7 of the element A : sand discharges at 31. A vibratory movement, which may be differential, is imparted to the element B and, if desired, to the element A, by electric vibrators 32. Water is supplied at 33 and, if desired, at 34. Oversize material discharged at 31 may be conducted to a ball mill and returned to the apparatus. The impeller functions in conjunction with the tubes 9, 10 as an aerator by the creation of a vortex. The apparatus may be used as a conditioner for flotation agents. If desired, the feed may be introduced directly into the tube 9 by opening the valve 20 and plugging the tube 10 at 36. In modifications, a third conical baffle surrounds the baffle 26 ; the element B comprises one or more reciprocating rakes or a helical conveyer moving over the sloping bottom of a tank in which the element A is disposed ; a second impeller is provided.
Patent GB-626655-A (GB)
Title: Improvements in and relating to hydraulic means for feeding a tool spindle
IPC: B23B47/22
Filed: 1946-07-30
Abstract: 626,655. Drilling long holes. LE MAIRE TOOL & MANUFACTURING CO., LEGG, W. C., and HARDING, L. V. July 30, 1946, No. 22644. [Class 83 (iii)] [Also in Group XXIX] A machine-tool, for feeding a rotating tool 27 intermittently at a constant rate, comprises a fixed main housing 10 containing a telescopic housing 23 which carries a rotary toolspindle 20 and which is extended and retracted by hydraulic means, means controlled by the movement of the spindle for intermittently applying hydraulic pressure to the telescopic housing during a predetermined interval in its extension, and hydraulic means for effecting a rapid return of the housing at the end of the interval. The spindle 20 is rotatably mounted in a piston 34 sliding in a cylinder 35 and is rotated by a motor 11 driving through gears 14, 15 and a female splined member 106. The member 106 incorporates a rotary valve 54, Fig. 6, which controls the supply of intermittent feed pressure. Drilling is commenced by pressing a button 86, Fig. 9, which actuates a solenoid 89 and a 4-way valve 51 so that an hydraulic motor 13, Figs. 3 and 9, supplies pressure, via lines 62, 65, a valve 72 and lines 68, 66 and 67, directly to the piston 34. Intermittent feed commences when a cam-rod 75, which is mounted on a flange 93 on the piston 34, actuates the valve 72 to close line 65 so that pressure is supplied only through lines 62, 64 and the rotary valve 54, a relief valve 50 being actuated when the valve 54 is closed. As break-through commences, a compensating valve 53 in the discharge line 79 maintains a back-pressure in a line 69 and prevents a jump of the drill. At the end of the stroke, an adjustable dog on an arm, also attached to the flange 93, trips a switch 91 to cut-out the solenoid 89 and reverse the valve 51 to supply pressure via both lines 59 and 60. At the completion of the cycle a spring-pressed plungervalve 111, Fig. 3, enters a recess 112 in the piston 34 and connects a port 121 to exhaust at 71, thus allowing the pump 13 to idle. The valve 106 may be modified to vary the flow during feed or to provide more than one pressure feed during one revolution, or only one pressure feed during several revolutions, of the spindle 20. The rear casing of the drill unit forms an oil reservoir 41. A sight gauge is provided in the casing to check the fluid level in the chamber 45.
Patent GB-625270-A (GB)
Title: Improvements in or relating to adhesive-applying devices
IPC: A24C5/24
Filed: 1946-07-30
Abstract: 625,270. Coating webs. RUAU, F. F., and MOLINS MACHINE CO., Ltd. July 30,1946, No. 22665. [Class 140] [Also in Group VI] In an adhesive-applying device, especially suitable for a continuous rod cigarette-making machine, the adhesive is milled as it travels between a rotor 8 and its casing 3, the rotor being urged to the right by resilient-pressure to seal the aperture through which its driving shaft 9 extends. This is effected by a spring- pressed plunger 18 bearing on a cover 19, and a space 21 in which the adhesive presses on the end of the rotor. The rotor has an annular groove 22 of square section co-operating with the inlet 5 for the adhesive and tapering helical grooves 23. Alternatively, longitudinal or square grooves may be formed in the casing 3. The nozzle 2 applying the adhesive to the continuous rod cigarette paper 1 is mounted as described in Specification 625,322, on a hollow spindle 24 movable in its casing by handle 31 so as to bring a port out of register with an outlet 7 when it is desired to cut-off the supply. An adjustable stop 27 locates the end of the nozzle. An automatic cut-off comprises a solenoid 28 energized when the machine starting handle is in the "off" position so as to draw back a plunger 29, the hand lever 31 being spring-pressed to follow.
Patent GB-1401737-A (GB)
Title: Anti-coagulant isolation
IPC: C12N9/64
Filed: 1973-05-11
Abstract: 1401737 Chromotographic purification ABBOT LABORATORIES 11 May 1973 [12 May 1972] 22685/73 Heading B1H [Also in Divisions A5 and C3] A process for isolating the thrombin-like acting component from the venom of the viper Ancistrodon rhodostoma consists essentially in preparing a clear solution of the native venom in a 0.25 molar aqueous sodium chloride solution bufferedto a pH of 7.5-8.3, placing said solution on a columnar bed packed with agmatine-coupled agarose beads, washing the column with a 0.25 molar aqueous solution of sodium chloride buffered to a pH of 7.5-8.3 until the absorption of radiation of wavelength 280 mm by the wash solution is reduced to 0.04 or less, and eluting the active thrombin-like material from said column with an aqueous solution of 0.1- 0.25 molar guanidine hydrochloride buffered to a pH of 7.5-8.3. The buffered solution so obtained may be concentrated by ultrafiltration and then subjected to gel filtration: alternatively the guanidine hydrochloride and elution buffer may be eliminated by dialysis against another buffer. Benzyl alcohol, methyl and/or propyl p-hydroxybenzoate or chlorobutanol may be added as a preservative.
Patent GB-1530225-A (GB)
Title: Process for the production of polyurethane foams
IPC: C08G18/18
Filed: 1977-05-30
Abstract: 1530225 Polyurethane foams BAYER AG 30 May 1977 [1 June 1976] 22728/77 Heading C3R  A process for the production of a polyurethane foam comprises reacting a polyisocyanate with a compound containing at least two NCO-reactive hydrogen atoms in the presence of, as blowing agent, water and, as catalyst, a compound of the formula wherein n, n<SP>1</SP> and n<SP>11</SP> each represents 2 or 3, Z and Z<SP>1</SP> each represents R or the group where R represents C 1-5 -alkyl and m represents 0 or 1 or the group The reaction mixture may additionally comprise other catalysts, e.g. conventional tertiary amines and organo tin compounds, other blowing agents and other conventional additives. In the examples polyurethanes foams are prepared using as catalyst a mixture of diazabicyclo-2,2,2-octane and either tris-(3-dimethyl aminopropyl)-amine or tris-(3,7-diaza-3,7,7-trimethyl-heptyl)-amine.
Patent GB-1467649-A (GB)
Title: Electronic amplifier
IPC: H03G11/00
Filed: 1974-05-21
Abstract: 1467649 Amplifiers; limiters; gain control NOVANEX AUTOMATION NV 21 May 1974 [22 May 1973] 22740/74 Heading H3T and H4R A power amplifier is provided with a limiter which is so connected to a potentiometer comprising two resistors and a Zener diode coupled between the output of the amplifier and a power supply terminal that the limiting level increases with mains voltage. Pre-amplifier 1 has input terminals 2 and is coupled by capacitor 3 to power amplifier 4 which drives loud-speaker 5. The input at the power amplifier is shunted by FET 10, the gate 13 of which is biased via resistor 14 and a series diode from the tapping point of a potentiometer comprising resistors 18, 19 and Zener diode 17, connected between the negative supply line and output of power amplifier 4. The gate 13 is also connected to the input of power amplifier 4 via resistor 15 and capacitor 16 to make its characteristic symmetrical. The cut-off characteristic is smoothed by means of a pair of reversely-poled diodes 7, 8 in series with adjustable resistor 9 across resistor 6. The Specification includes also, but does not describe, a complete circuit-diagram of the power amplifier (Fig. 2, not shown).
Patent GB-1389996-A (GB)
Title: Styryl compounds
IPC: C07C15/42
Filed: 1973-05-14
Abstract: 1389996 Styryl compounds NIPPON KAYAKU KK 14 May 1973 [19 May 1972] 22889/73 Heading C2C [Also in Divisions C3 and C5] Compounds of the general Formula I are prepared by a process which comprises reacting 1 mol. of a compound of the formula X-A-X with 2 moles., of one or two styrene derivatives of the formula in the presence of a palladium catalyst and a basic substance at an operated temperature; wherein X is iodine, or bromine and A is a bivalent radical selected from groups of the formula R 1  and R 1 <SP>1</SP> are the same or different and each is a substituent selected from hydrogen chlorine C 1  to C 4  alkyl methoxy, ethoxy, sulphonic acid or the salts thereof, sulphonamide, and C 1  to C 4  alkyl substituted sulphonamide and R 2  and R 2 <SP>1</SP> are the same or different and each is a substituent selected from hydrogen; chlorine C 1  to C 4  alkyl sulphonic and or the salts thereof, sulphonamide and C 1  to C 4  alkyl substituted sulphonamide radical. The compounds of Formula I wherein A is of formula are claimed per se.
Patent GB-1368002-A (GB)
Title: amphibious vehicle
IPC: B60F3/00
Filed: 1972-05-16
Abstract: 1368002 Amphibious vehicles DR ING hcF PORSCHE AG 16 May 1972 [17 July 1971] 22892/72 Headings B7A and B7V An amphibious vehicle body 1 has auxiliary buoyancy members 2, 3 pivotally mounted for movement from a position in or on the body during land travel to a position outward of the vehicle body when floating. Levers 6 actuated hydraulically by piston/cylinder 10, 11 move the auxiliary bouyancy members in a manner such that they are continuously adjustable relative to the vehicle body in all operative floating positions. Each angle lever 6 is mounted on a fulcrum 7 on the vehicle body with its ends interconnecting the buoyancy member and the piston/cylinder. Auxiliary drive screws 13, 14 are provided in the auxiliary buoyancy members for control during floating, the drive to the screws being effected by splined shafts 19 of adjustable length.
Patent GB-669138-A (GB)
Title: Improvements in dry gas meters
IPC: G01F3/22
Filed: 1949-09-05
Abstract: 669,138. Gas meters. BEGWACO METERS, Ltd., and BUTTERWORTH, E. July 4, 1950 [Sept. 5, 1949], No. 22920/49. Class 54. In a dry gas meter of the diaphragm type wicks c extend through the base of each diaphragm chamber for draining off to the gas meter casing any liquor which may be deposited by the gas in the diaphragm chambers b and this without providing any path for the passage of gas by the drainage means.