baber/WOPTO huggingface dataset:
Patent GB-257079-A (GB)
Title: Improvements in telephonic repeating systems
IPC: H04M3/56
Filed: 1925-07-28
Abstract: 257,079. Western Electric Co., Ltd., (Bell Telephone Laboratories, Inc.). July 28, 1925. Repeating and amplifying systems for telephony. A monitoring set involving additional balanced windings 19, 20 on the usual three-coil transformers of a two-way repeater, as described in Specification 228,387, is provided with means for altering its circuits to admit of (1) amplified reception from either or both lines at will, (2) transmission over either or both lines combined with amplified reception, (3) direct transmission, reception, and ringing at 20 or 135 cycles over either line. The set can be used in conjunction with a 22-type repeater, Fig. 1, a fourwire system, Fig. 9, or a 21-type repeater. Fig. 10. In the latter case however communication with each line separately is not possible. and one of the extra windings is replaced by an impedance 299. Amplified reception from either or both lines. With plugs 26, 27 in jacks 24, 25 and keys 35 - - 37 in the normal position as shown, the receiver 30 is connected via a condenser 49 to the low impedance winding 48 of a transformer 34 the high impedance, winding 44 of which is connected to the points 21. 23, and amplified speech from both lines is received. If the key 35 is thrown to the right the upper end 80 of winding 44 is connected to the point 22 instead of to the point 23 and reception takes place from line 13 only. If the left-hand contacts of key 35 are operated the lower end of winding 44 is connected to point 22 and reception takes place from line 11. Transmission and amplified reception. Key 36 is thrown to the right and relays 51, 60 pull up, connect the microphone to the low impedance winding 48, complete a battery fed circuit 65, 66, and connect one end of the receiver 30 to the tapping 78 of winding 44. With key 35 in' its normal position the circuit arrangement is as shown in Fig. 5, the windings 19, 20 being connected across low impedance sections of the winding 44 on either side of the tapping 78. A resistance 92 is connected across the receiver to make the ratio of the impedance of the branch 22, 78 to that of the section 77, 79 approximate to a particular value at all frequencies to avoid singing, as explained in U.S.A. Specification 1.254,472 (equation 8, page 5). If key 35 now operates its right-hand contacts the conditions are changed to those shown in Fig. 6 and communication is possible with line 13 only. In a similar way communication with line 11 is obtained by throwing key 35 to the left. Direct communication and ringing. Plugs 26, 27 are inserted in jacks 28 or 29 and key 36 is thrown to the left. Relays 51, 60 pulls up as before but the circuit conditions are those shown in Fig. 8. With this arrangement side tone is prevented by the fact that the section 79, 80 of winding 44 is of high impedance and balances the line impedance. Key 37 connects up either of two ringing generators 38, 39.
Patent GB-1121933-A (GB)
Title: Improvements in or relating to the cooling of insulated electric power cables
Inventor: DAVEY EDWARD LESLIE
IPC: H01B9/06
Filed: 1966-05-02
Abstract: 1,121,933. Connecting cables; cable joints; cooling cables. BRITISH INSULATED CALLENDERS CABLES Ltd. 1 May, 1967 [2 May, 1966], No. 19217/66. Headings H2C and H2E. [Also in Division H1] A high voltage, high power electric cable is cooled by forcing cooling liquid in the same direction through the or each hollow conductor of the cable and through one or more passages between the screened core of the cable and its sheath, but with a periodic transposition of the two cooling streams at intervals along the cable. As shown in Fig. 2, a pump 8 forces oil through a central duct 10 and an outer duct 11 of the cable and at a cable joint 9 the two streams are transposed. At a remote end of the cable the oil passes through a heat exchanger 12 and a pump 13 then delivers it to a second cable, the operation being repeated for each of the cables of an A.C. three-phase or D.C. cable system. In the cable joint shown in Fig. 3, a hollow conductor 16, built around a steel helix 17 is fitted with an end mandrel 18 and ferrule 20 with parallel bores 21, 22, is compression jointed at 23 to conductor 16 and fitted into a socket formed by flexible fingers 24 projecting from a metal barrier plate 25. Bores 21, 22 mate with ducts 26, 27 in a similar ferrule 28 on the other side of the barrier 25 which is connected to cylindrical metal screens 29, 30 embedded in a body 31 of synthetic resin.
Patent GB-638846-A (GB)
Title: Improvements in or relating to electric plug-and-socket couplings
IPC: H01R4/36
Filed: 1948-07-17
Abstract: 638,846. Two-part couplings. WARD & GOLDSTONE, Ltd., and HART, G. B. July 17, 1948, No. 19240. [Class 38 (i)] In a socket of the type wherein the contacts are combined with terminals, each socket contact A is located in a hole E in a one-piece insulating body B with its inner end abutting a peripheral shoulder F, a screw I passing through aligned holes in the body and contact and engaging a nut K located in the hole E, thereby serving to clamp a conductor in the contact and to retain the latter in the body. The contacts are formed from sheet metal and have a longitudinal split D. Each nut is prevented from rotating by engaging the sides of the hole E and/or a lug on the contact. In order to obviate the use of larger screws in greater size sockets, the latter are made of stepped form, the narrower part receiving the conductor.
Patent GB-1135196-A (GB)
Title: An improved bath
IPC: A47K3/00
Filed: 1965-05-07
Abstract: 1,135,196. An improved bath. G. E. COWLEY. 4 March, 1966 [7 May, 1965], No. 19278/65. Heading A4N. A bath characterized in that there is provided in the side of the bath an opening (15) whereby a door (22) can be fitted which is capable of being closed and the opening sealed by inflatable seating means. The bath may have an integral or removable seat (10) and the seat portion may be provided with spaced apart runners (not shown) extending across the bath from the open side whereby a person can be wheeled on a trolley into the bath. The door may be of horizontally or vertically sliding type having two sealing members, one of which is an inflatable tube (18), capable of being inflated by a pump (19) which can be manually or mechanically operated, located in the undercut portion of an undercut groove formed around the periphery of the opening, and the other is a non-inflatable or inflatable seal member adapted to bear against the opposite side of the door. A hinged door may also be used.
Patent GB-1117078-A (GB)
Title: Crane counterweight removal device
IPC: B66C23/74
Filed: 1967-04-27
Abstract: 1,117,078. Counterbalancing mobile jib cranes. RUSTON-BUCYRUS Ltd. 27 April, 1967 [20 May, 1966], No. 19344/67. Heading B8B. A vehicle mounted crane having a working frame 3 on a bed 2 comprises a pair of levers 10, one either side of the frame 3 and each vertically, pivotally mounted on the frame 3 by a pin 11. A counterweight 5 is releasably, pivotally mounted on the levers 10 by removable connecting pins 26. Each lever 10 is pivotally connected to the piston 13 of an hydraulic cylinder 12 pivoted to a top member 7 of a sub-frame 6 of the frame 3. In its mounted, full-line, position the counterweight is raised and close to the frame 3 where it is held by removable look pins 20. In order to dismount the counterweight 5, the look pins 20 are removed and the cylinders 12 actuated to retract the pistons 13 which lowers the counterweight 5 and removes it from the frame 3 to rest on the bed 2. The pins 26 are then removed to disconnect the counterweight 5 from the levers 10 and the frame 3.
Patent GB-147507-A (GB)
Title: Clutch for vacuum cleaner
IPC: A47L5/30
Filed: 1920-07-08
Abstract: 147,507. Sheffler, I. L. Jan. 20, 1919, [Convention date]. Carpet - sweepers. - In a vacuum-cleaner having a power-driven brush within the suction nozzle, the brush is driven through gearing within an enclosed chamber at the end of the nozzle, a yielding clutch being interposed. As shown, a gear-wheel F is loosely mounted on the brush shaft and is driven by a worm G actuated through a suitablyhoused flexible shaft connected with the shaft of the motor and fan. A spring disk I<1> is mounted on the brush shaft and bears against the gear F. The. motor thus continues in operation should the brush E be entangled and stopped.
Patent GB-422205-A (GB)
Title: Improvements in controllers for electric motors
IPC: H01H9/26
Filed: 1933-07-10
Abstract: 422,205. Drum and rocking-bar controllers. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and MARDIS, P. L., Lyndhurst, Sedbergh Park, Ilkley, Yorkshire. July 10, 1933, No. 19493. [Class 38 (iii)] A controller for electric traction comprises a main spindle 2 movable to power and brake positions, cylindrical contact segments 17, Fig. 3, for engaging contact fingers 16, and cams 13, Fig. 2, for operating contactor type switches 11, the segments and cams being all mounted on the main spindle, the movements of which operate a separate power brake change-over switch 23, and hold it positively in one or other of its effective positions. Cams 30, 31, Fig. 4, at the lower end of the spindle 2, operate on a pivoted lever 26 provided with rollers 28, 29 to operate and hold the powerbrake switch 23, which is freely mounted on a spindle 3. The cams 13, 30, 31, and the segments 17 embrace and are clamped to the insulated main spindle 2. The controller also comprises a drum reversing switch 20 mounted on the spindle 3 above the switch 23, and arranged to be moved vertically to cut out one or the other of two motors, the movement being effected from outside the controller casing by means of two connecting rods coupling two discs mounted respectively on an operating spindle, and on a spindle having a peg which engages discs on the reversing drum. Specification 348,815 is referred to.
Patent GB-974034-A (GB)
Title: Production of vacuum-tight spinel bodies
IPC: C04B35/42
Filed: 1962-05-21
Abstract: A sealed hollow body of a spinel of magnesium, zinc or nickel oxide and Al2O3 or Fe2O3 is formed by assembling two or more sub-bodies of Al2O3 or Fe2O3 to define a chamber isolated from the surrounding atmosphere and reacting with magnesium, zinc, or nickel oxide to convert the Al2O3 or Fe2O3 to the corresponding spinel and to seal the junctures between the sub-bodies.  Sub-bodies of alumina may be reacted with magnesia either by surrounding the assembled sub-bodies with solid magnesia and firing at a temperature of between 1500 DEG C. and 1900 DEG  C. or by subjecting the assembly to vaporized magnesia in a hydrogen-containing atmosphere.  The alumina employed may contain an addition of magnesia up to 0.5 weight per cent. Sub-bodies of ferric oxide may be reacted with magnesia at a temperature of 1100 DEG  C. to 1500 DEG  C. and in an atmosphere substantially inert to the ferric oxide e.g. oxygen. Both the sub-bodies of Al2O3 and Fe2O3 may be made by either slip-casting, powder-compacting or extrusion methods.  Specification 931,023 is referred to.
Patent GB-862017-A (GB)
Title: Improvements in power transmission systems
IPC: F16D33/16
Filed: 1957-06-21
Abstract: 862,017. Hydrodynamic couplings. VOITH G.m.b.H., J. M. June 21, 1957 [June 25, 1956], No. 19674/57. Class 69 (2). [Also in Group XXVIII]  A turbo coupling for the drive of a rail-vehicle-brake air-compressor, which is operated for considerable periods at a high degree of slip, comprises an impeller 8 and runner 10 enclosed in a stationary housing 15, 16 on which are mounted a valve 77  controlling filling and emptying of the coupling and an automatically operated valve 78 for steplessly varying the degree of filling. Liquid is supplied to the working chamber of the coupling by a pump 37 drawing from a sump 38 and supplying liquid via valve 77 and passages 41-46, a space 47 and ducts 49 in the impeller blading to the central portion of the working chamber, Liquid leaves the working chamber through openings 21 in the runner shell, and thence via a duct 56, valve 78 and a pipe 62 to the sump 38. A spool 55 of valve 78 is urged upwardly to open communication with the return pipe 62 by the pressure in duct 56, which is equal to the centrifugal pressure in the working chamber plus the static pressure. The valve is urged downwardly towards its closing position by a spring 60 and by the static pressure which is applied to the top of the valve spool via a duct 58 leading from near the coupling axis. The valve 77 is urged by spring 36 to a position connecting the pump 37 to the working chamber, and is urged downwardly by the pressure in the brake system to a position for emptying the working chamber through a pipe 53. A safety valve 63 opens if the pressure in duct 56 becomes excessive. In order to reduce friction the runner shell is extended so as to partially enclose the impeller shell. Since, when the driving engine is operating at high speed, the coupling is operating at high slip, the runner speed is considerably less than the impeller speed, and friction due to the stationary housing is greatly reduced. To facilitate assembly of the coupling parts the overlapping portion of the impeller and runner shells are formed as " teeth " 19, 20 so that the impeller and runner can be brought into their operating position by axial movement during assembly of the coupling. For cooling purposes during operation of the coupling a continuous flow of liquid is maintained through a nozzle 67 of small cross-section. Ducts 28, 33 for venting air from the coupling are provided in the runner blading and lead respectively from the central portion and from the axial portion of the working chamber. Specification 775,525 is referred to.
Patent GB-600091-A (GB)
Title: Flame proof filters
IPC: F02M35/04
Filed: 1945-08-01
Abstract: 600,091. Gas filters. AIR-MAZE (GREAT BRITAIN), Ltd. Aug. 1, 1945, No. 19749. Convention date, Aug. 19, 1944. [Class 8 (ii)] A flame-proof gas filter comprises an assembly of corrugated wire mesh filtering layers 17 ... 21 and an assembly of corrugated brass wire mesh flame-proof layers 16 located downstream of the filter layers in a frame 14 secured in good heat conducting contact with a frame 10 surrounding the filter layers. The corrugations of layers 17, 18, of mesh 6 x 6, 8 x 8 respectively, extend at right angles to those of layers 19, 20 also of similar mesh. Six layers 21 of 16 x 16 mesh bronze complete the filter, and have corrugations of alternate layers crossing to prevent nesting. All the layers are oiled. The flame-proof layers 16 of 24 x 24 mesh brass, and having their <3>/32 inch corrugations crossed, are secured to the frame 14, which is itself welded to the frame 10. Further layers 22 ... 25 of bronze mesh resiliently mounted in the frame 10 serve to cool flame propagation against the gas stream and to protect the layers 16 from dirt raised by an explosion downstream. The Specification as open to inspection under Sect. 91 states that the filtering means may be of the kind set forth in Specifications 544,296, 585,201 and 600.306. This subject-matter dues not appear in the Specification as accepted.
Patent GB-879211-A (GB)
Title: Improvements in or relating to glyceride esters
Inventor: CRAWFORD RAYMOND VINCENT
IPC: C11C3/02
Filed: 1958-06-20
Abstract: Cocoa butter substitute in the form of a eutectic random esterified mixture of triglycerides is obtained by reacting glycerol with a mixture of fatty acids consisting of 85 to 100% by weight of lauric and myristic acid, present in proportions between 2.3 to 1 and 4 to 1, at elevated temperature, e.g. 160 to 250 DEG C. and in stoichemical proportions, any other fatty acids present being only those with 8, 10, 16, or 18 carbon atoms.  In a modification, a mixture of triglycerides of the fatty acids above, is interesterified at a temperature above the complete melting point of the mixture, in the presence of a catalyst, e.g. sodium methoxide at up to 160 DEG C. and potassium hydroxide at 220 DEG C. A preferred mixture of fatty acids is one with at least 90% of lauric and myristic acid in the mixture, with a ratio of lauric to myristic acid of 3:1, and catalysts such as sodium hydroxide or zinc chloride are used for the esterification.  Examples describe the esterification of a mixture of 3 parts lauric and 1 part myristic acids with glycerol at a temperature increasing from 180 to 230 DEG C. under reduced pressure to yield a fat of M.P. 33.7 DEG C.; and the heating of a mixture of 3 parts trilaurin and 1 part trimyristin, dry and free from fatty acids at 90 DEG C. or 160 DEG C. with sodium methoxide or at 220 DEG C. with potassium hydroxide to yield a product which is purified to yield a neutral hard fat, M.P. 33.5 DEG C., containing glycerides of trilaurin, dilaurin myristin laurodimyristin and trimyristin.ALSO:Cocoa butter substitute in the form of a eutectic random esterified mixture of triglycerides is obtained by interesterification of a mixture of triglycerides of fatty acids consisting of 85 to 100% lauric and myristic acids, the ratio of the lauric to myristic acid being within the range 2.3 to 1 and 4 to 1, any other fatty acid radicals present comprising only those of acids having 8, 10, 16 or 18 carbon atoms in the acid molecule. The temperature of interesterification is above the complete melting point of the mixture and a catalyst e.g. sodium methoxide or potassium hydroxide is present.  In examples, 3 parts of trilaurin and 1 part of trimyristin are heated under nitrogen at up to 90 DEG C. or up to 160 DEG C. with sodium methoxide, or up to 220 DEG C. with potassium hydroxide, to yield after removal of impurities, a neutral hard fat of M.P. 33.5 DEG C. containing the glycerides trilaurin, dilaurinmyristin, lauro - dimyristin and trimyristin in random proportions.
Patent GB-457288-A (GB)
Title: Improvements in flexible hose
IPC: F16L11/16
Filed: 1935-07-11
Abstract: 457,288. Flexible hose. TUCK & CO., Ltd., and MATTHEWS, E. W. R., 61, St. Mary Axe, London. July 11, 1935, No. 19818. [Class 99 (ii)] A flexible hose comprises an inner lining tube g of helically-wound strip metal h, a fabric insertion i preferably impregnated with artificial resin, and a layer k of cellulosic material such as " Cellophane," (Registered Trade Mark). The hose may be reinforced by a layer m of fabric treated with resin or linseed oil, layers n, p of rubber-proofed fabric, a wire winding o, and a braided covering q.
Patent GB-578144-A (GB)
Title: Improvements in toys
IPC: A63H33/30
Filed: 1944-10-13
Abstract: 578,144. Toy rollers. LINES BROS., Ltd., and LINES, W. Oct. 13, 1944, No. 19825. [Class 132 (iii)] A toy garden roller is formed from a tube of cardboard or like material made from fibrous pulp, and has its ends closed by dished circular pieces of similar material, to the centres of which metal plates are riveted to form bearings for an axle, upon the outer end of which a handle is mounted. In the toy shown, a cardboard tube 1 has its ends closed by dished circular pieces 2, the flanges of which are flush with the ends of the tube. Two metal plates 5 are riveted to the centre of eachend piece and are drawn out to form bearings for an axle 7. A handle is formed from a single strip of metal as shown, the ends of which fit over squared portions of the axle and are secured by screw caps 9. A wooden grip 18 is bolted to the middle of the strip and the two arms of the latter are transversely connected by a transverse strip 20, circular metal plate 21 and distance pieces 23. The handle is provided with a metal or concrete counterweight 24 rigidly secured to the axle. Alternatively, for ease of packing, the handle may be formed from two metal tubes ; one tube has its two ends secured to those of the axle and the other is detachably secured to the middle of the first tube and carries a wooden handle at its other extremity.
Patent GB-986842-A (GB)
Title: Improvements in or relating to fluidised bed reactors
IPC: B01J8/00
Filed: 1960-06-07
Abstract: A fluidized bed reactor, e.g. for roasting ores such as chalcopyrites, is provided with a series of tangential gas inlets above the intended level of the bed to provide a zone of restricted turbulence above said bed.  As shown in the Figures, furnace 3 having an annular grate 4 is supplied with fluidizing gas by means of a series of tuyeres and with solids through inlet 7. The particles of the bed are removed by overflow through openings 9 in central tube 8, a slide 10 being used to cover such openings as may be desired and thereby regulate the height of the bed.  Tangential gas inlets 13 supply additional gas, which may be twice as much as that introduced through the grate and result in three times the throughput.  An adjustable baffle 12 deflects entrained coarser particles back into the bed.  The projecting annular portion 11 and the conical top 14 to the outlet pipe serve to confine and stabilize the vortex above the bed. <PICT:0986842/C1/1>
Patent GB-121284-A (GB)
Title: A Prepared Health Food and Process of Making Same.
IPC: A23L7/196
Filed: 1918-12-03
Abstract: 121,284. Fruited Cereal Co., (Assignees of Pursell, J. P.). Dec. 4, 1917, [Convention date]. Food preparations.-Cereals, such as wheat or oats, are cooked in water and steam under pressure, along with ground fruit, such as dates, figs, and raisins. The mixture is then dried, after which it may be flaked by rollers. It is finally toasted or granulated or both.
Patent GB-453303-A (GB)
Title: Improvements in or relating to flexible pipes and a process of manufacture thereof
IPC: F16L11/112
Filed: 1935-07-12
Abstract: 453,303. Flexible pipes. SOC. ANON. BANCAIRE ET IMMOBILIERE POUR INDUSTRIE ET AGRICULTURE, 29, Croix d'Or, Geneva, Switzerland. July 12, 1935, No. 20039. Convention date, June 19. [Class 99 (ii)] [See also Group V] A flexible pipe 1 for the conveyance of liquid hydrocarbons &c. is formed of a plastic material, e.g. glues, gelatines or products derived from the polymerization of vinyl compounds, and is provided with internal and external helical undulations. The plastic material is preferably extruded on to a mandrel 2, the undulations being formed by removable staggered cords 3, 4 wound around the mandrel and pipe respectively ; alternatively a fabric coated with the plastic material is wound upon the mandrel. Reference has been directed by the Comptroller to Specifications 144,931 and 151,298, [both in Class 99 (ii)].
Patent GB-260064-A (GB)
Title: Improvements in rotary engines
IPC: F01D1/34
Filed: 1925-08-11
Abstract: 260,064. Hopkinson, E. C., White, F. W., and Jones, C. D. Aug. 11, 1925. Siren - type. - A turbine is constructed on the principle that if a pair of discs, one fixed and one rotatable, with holes arranged in a circle round their axes, are placed face to face with the holes partially overlapping, the movable disc will rotate to bring the holes into register when a fluid pressure is applied axially, and its momentum will carry it past this point until the holes again overlap, so that the fluid imparts a rotary movement to the disc. In Fig. 4, C is the fixed disc and A the movable one. When fluid pressure is applied in the direction of the arrow E the disc will rotate in the direction of the arrow F. If the holes Dare B overlap in the opposite direction, Fig. 5, the disc A will rotate in the opposite direction. The turbine comprises a rotor A in shafts H in a casing G, Fig. 7. The holes B in the rotor are countersunk and normally register with inlet holes N in a plate G'. The plate C with the holes D is mounted to rotate within limits on the axis H of the rotor in the exhaust side and exhaust holes 0 are made in the plate G<2>. By applying fluid pressure through the holes N, B, the rotor will be caused to rotate and the direction is determined by the disc C. When this disc is at one end of its limit the rotor moves in one direction and when thrown over to the other limit, the direction of rotation is reversed. The disc C has only half as many holes as the rotor and is provided with securing means for keeping it in the corect position.