baber/WOPTO huggingface dataset:
Patent GB-1345987-A (GB)
Title: Power output unit and method for delivering constant frequency constant voltage ac power
IPC: H02P9/30
Filed: 1972-02-03
Abstract: 1345987 Automatic voltage control DYNAMOTE CORP 3 Feb 1972 [8 Feb 1971] 5171/72 Heading G3R The D.C. output from an engine-driven generator is used to produce a constant frequency A. C. voltage which is regulated and may be used to supply power to A. C. loads. In the circuit shown, a vehicle alternator 44 with a rectified output appearing at terminal 48 normally has its field winding terminal 46 connected to a voltage regulator 52, and supplies D.C. loads as well as charging the battery 38 through a lead 64. In order to supply A.C. loads a switch 16 is operated to connect terminal 46 with a regulator circuit 142 and energise relay 62 to connect output terminal 48 to an inverting autotransformer 96. The ends of the transformer winding 94 are connected through a capacitor 119 and thyristors or switching transistors 118, 120 which are fired alternatively by a constant frequency vibrating reed 110. The A.C. output is taken from across the capacitor 119 and fed to a distribution socket 18. Its magnitude is sensed by a winding 134 and rectifiers 136, 138 connected to a known regulator circuit 142 including transistors and a Zener diode, thus controlling the field of the alternator 44 to regulate the A.C. output from the transformer 96. When the alternator is disconnected from the D.C. regulator 52, its output voltage is allowed to rise so that higher voltage A.C. loads may be supplied, and the engine speed may be controlled, by a connection 148A from the circuit 142, in response to the electrical load in order to maintain a sufficient output from the alternator.
Patent GB-1365588-A (GB)
Title: Chucks for machine tools
IPC: B23B31/175
Filed: 1972-02-04
Abstract: 1365588 Chucks KMS INDUSTRIES Inc 4 Feb 1972 [8 Feb 1971] 5234/72 Heading B3B A chuck for gripping a workpiece 112 has jaws 40 that, in a first mode of operation of the chuck, can move relative to each other to compensate for irregularities on the workpiece, and in a second mode of operation can move simultaneously, rigidly interconnected, said chuck comprising a body 12, jaw slides 38 movable radially in said body, a draw sleeve 46 axially movable in the body, and jaw driving means operably connected between the jaw slides 38 and the draw sleeve 46, said means comprising first and second wobble rings 62, 64 coaxial with said sleeve 46 and pivotally mounted with respect to each other and at least one of said rings, e.g. ring 62, being pivotally mounted with respect to said sleeve 46 such that both of said rings can rock with respect to each other and said sleeve to allow the jaw slides to move radially non-uniformly in response to axial movement of said sleeve 46. The jaw slides are actuated by levers 66 that engage with a wobble ring 64. In the second mode of operation an adjusting nut 54 is rotated by an externally rotatable pinion drive to adjust its position axially on the sleeve 46 to lock the wobble rings 62, 64 against pivoting movement. The chuck body 12 is movable axially along guide posts 16, 18 between a face plate 14 attached to a spindle 30 by screws 29 and an end plate 24 against springs 32. Workpiece rest pads 36 are mounted on the ends of the guide posts 16, 18. When a draw bar 48 retracts the sleeve 46 the body 12 moves towards the face plate 14 and ensures a workpiece is held firmly against the rest pads 36. In one mode of operation a workpiece 112 is mounted on a spring urged centre 146 against an inner rest pad 130 before gripping by jaws 40. The centre 146 is spring biased in a carrier 126, and the carrier 126 is also spring biased in a support body 114 inserted coaxially with the draw sleeve 46. When a workpiece 112 is moved against the centre, the centre 46 is depressed until the inner rest pad 130 is engaged, whereupon the carrier 126 is moved rearwardly to trigger release a spring urged transversely movable locking member 164 which through inter-engaging inclined wedge faces 168, 170, locks the centre 146 at the correct axial position. When the workpiece 112 is removed the spring 140 urged movement of the carrier 126 forwardly automatically re-cocks the locking member 164 in its retracted position.
Patent GB-563793-A (GB)
Title: Improvements relating to rotary reels for dressing machines for granular or powderedstock
IPC: B07B1/24
Filed: 1943-04-02
Abstract: 563,793. Sifting apparatus. SIMON, Ltd., H., LOCKWOOD, J. F., and PARKER, T. S. April 2, 1943, No. 5313. [Class 117] In centrifugal reels, the stock is delivered to the interior of the reel by pockets e carried by the shaft a of the beaters b. The stock is fed by a spout d which communicates with the pockets through the end of the sieve frame c, so that stoppage of the beaters only interrupts the feed. The bottom of the pockets may be formed by a sleeve h on the sieve frame, or by an extension of the boss g by which the pockets are secured to the shaft b.
Patent GB-580259-A (GB)
Title: Cut-off or control valve for steam or gas turbines with high working temperatures
IPC: F16K49/00
Filed: 1944-03-27
Abstract: 580,259. Valves. ESCHER WYSS MASCHINENFABRIKEN AKT.-GES. March 23, 1944, No. 5423. Convention date, March 26, 1943. [Class 135] In a cut-off or control valve for steam or gas turbines with high working temperatures, working medium at a lower temperature than that which comes into contact with the valve closure member and its spindle is introduced into the gap between the valve spindle and at least one of the valve spindle guides to cool the valve spindle and so prevent its distortion at very high temperatures. The working medium so introduced is at a higher pressure than that on the inlet side of the valve. As shown, working medium is introduced by a pipe 5 to the guide sleeve 4. This supply may be taken from the inlet side of a superheater or from an intermediate point of the latter. The valve casing 1 is furnished with liners 6, 7, 8, 9 forming cooling spaces 6<1>, 7<1>, 8<1>, 9<1> and working medium which passes down the spindle 3 passes through a port 11 into the space 6<1> and thence via a pipe 12 into the space 9<1>. Working medium also passes through a pipe 13 into the spaces 7<1>, 8<1>. Openings 18, 19 connect the spaces 8<1>, 9<1> with the outlet and inlet sides of the valve respectively. The pipe 13 is connected to the outlet chamber 15 by a byepass pipe 14 containing a valve 16 opened automatically when the pressure difference between the spaces 7<1> and 15 becomes too great. Any working medium which passes up the valve spindle is led off by a pipe 21 to a point where it can be used as, for example, to a lower pressure stage of a steam turbine. A modification is described in which the cooling medium is also introduced into the valve member 2 and into a lower spindle guide by means of passages in the valve member and its spindle. The passages may, however, be arranged to pass straight through the spindle to the lower spindle guide.
Patent GB-465542-A (GB)
Title: Improvements relating to stocking and like suspender clasps
IPC: A41F11/04
Filed: 1936-02-24
Abstract: 465,542. Hose -- suspender grips. WALKER, Ltd., T., and WALKER, G. T. Feb. 24, 1936, No. 5434. [Class 44] A stocking or like suspender-clasp has a tab carrying a button or stud 6, the tab cosisting of a flat rubber strip with an upper attachment part 8 reduced in thickness in relation to the lower part 7 which carries the stud 6. The stud is moulded on the face of the strip which may be ribbed as shown in Fig. 6, and a reinforcement of satin 10 or other fabric may be applied to the back of the strip. The flexible upper end 8 of the tab is folded round the cross-bar of one or each of the two loops 1, 2 before the application of the coupling plate 3. As an alternative the flexible end may be passed round the plate 3 and its extremity secured to the body portion by cement. Specifications 194,229, [Class 44], and 348,054 are referred to.
Patent GB-1249052-A (GB)
Title: Improvements in or relating to condition responsive apparatus
IPC: G01R17/08
Filed: 1969-01-31
Abstract: 1, 249, 52. Reading indicators photoelectrically. DRESSER INDUSTRIES Inc. Jan. 31, 1969 [April 12, 1968], No.5441/69. Heading G1A. The movement of a slotted vane indicating pressure, temperature, fluid-flow, motion, weight &c. is detected by a pair of photo-cells connected in a bridge circuit, imbalance of the bridge actuating a mechanism driving the slotted vane to a null position and simultaneously indicating the measured variable. The vane 150 is actuated by a Bourdon tube 13 and the driving mechanism comprises a D. C. servomotor 164 driving a lead screw 44 through a gear-train 46, 48, 47, 49, 53. On the lead screw is a block 43 which urges the vane to a null position by means of a spring 42 and simultaneously traces a record with pen 54. Further bevel gears 53 co-operating with gear 49 provide digital read-out on a counter 51 and printer 52. A frameless direct drive servomotor may be placed operatively around the lead screw, thus eliminating the gearing. A variable range span is achieved by coupling the spring 42 to the Bourdon tube through an arm 174, Fig. 3 supported by leaf springs 175, 176 and adjustable slides 180, 181 connected by a leaf-spring 186. Temperature compensation is provided by mounting the vane 150 on a bi-metallic strip 187, and by including a thermister in the bridge circuit. Non- linearity in the properties of spring 42 are compensated by angular adjustments in the position of block 43 caused by a pin 190 running in a curved slot 191.
Patent GB-764810-A (GB)
Title: Plural temperature refrigerator
IPC: F25B5/00
Filed: 1955-02-23
Abstract: 764,810 Refrigerating. PHILCO CORPORATION. Feb. 23, 1955 [Feb. 23, 1954], No. 5460/55. Class 29 In a compression system, refrigerant flows through a pipe 16, Fig 1, from the condenser 15 to one vertical conduit 19 of a control device 18 whence it normally flows into another vertical conduit 20 having a first outlet 24, but, when heat is applied to the lower part of the first conduit, this flow is stopped by the resulting generation of vapour and the refrigerant rises to leave the first conduil through a second outlet 25. As shown in Fig. 1, refrigerant flows from first outlet 24 through a restrictor 26 to two evaporators 10, 11 in series and flows from the second outlet through a restrictor 27 to the second evaporator 11 only. The first conduit is heated by an electric element 34a energized upon the attainment of a predetermined low temperature by the first evaporator' 10. As shown in Fig. 4, the second conduit is in the form of an open ended tube 42 enclosed inside the first conduit 39, with inlet ports 40 and outlet ports 41, 45. Normal flow is in at 40 and then out by syphonic action at 45. When heater 46 operates a vapour blockage is set up at the lower end of conduct 39 and the refrigerant flows out by port 41. In a further modification (Fig. 3, not shown), the heater is replaced by a mass of material having a high thermal capacity, in contact with the ambient air. The compressor is controlled only by a thermostat in the food storage compartment operating between a temperature high enough to obtain complete defrosting of'evaporator 10, and a temperature somewhat higher than the minimum desired evaporator temperature. At the start of each compression period, the refrigerant is passed only to the low temperature evaporator, because of the vapour block in the first conduit caused by heat exchange between the mass and the refrigerant. By controlling the delay before normal conditions of flow prevail a fairly constant temperature can be maintained in the food storage compartment. The second outlet 25 may lead merely to a by-pass for the evaporator 10, evaporator 11 being omitted.
Patent GB-1490347-A (GB)
Title: Friction members
IPC: C10N70/00
Filed: 1974-02-08
Abstract: 1490347 Carbon coatings DUNLOP Ltd 23 Jan 1975 [8 Feb 1974] 05791/74 Heading ClA A friction member is prepared by (a) adhering a porous layer of carbon fibrous material or carbonizable fibrous material to a non-porous substrate with a carbonizable resin or pitch which is subsequently cured to effect a bond, (b) subjecting the porous layer to a chemical vapour deposition process whereby carbon is deposited thereon by the cracking of a hydrocarbon gas, the substrate being maintained at a higher temperature than the layer so that the vapour deposition of carbon proceeds progressively outwards from the substrate, through the fibrous layer to the exposed surface of the layer. The substrate is preferably of carbon, and the heating means may be high frequency electrical induction, or electrical resistance heating.
Patent GB-172598-A (GB)
Title: Improvements in or relating to embroidering machines
IPC: D05C1/02
Filed: 1921-02-21
Abstract: 172,598. Bachert et Cie. Dec. 6, 1920, [Convention date]. Embroidery machines.-Square frames 7 are mounted in the main work frame 1 of a shuttle embroidery machine, so that they can be turned to bring each edge uppermost in succession. The frames 7 rest in grooved plates 8, and are held at the top by plates 10<1> secured to the shaft 11 extending across the work-frame. All the frames 7 are released together by turning the shaft 11, and the shaft is held with the plates 10<1> up by means of a ratchet 14 and a detent 15. Two rows of frames 7 are provided, one on either side of a central horizontal bar 4 of the main frame. In use, the upper and lower edges of fabric squares are embroidered simultaneously, as shown, so that the squares are completed with one turn of the work-frame.
Patent GB-192939-A (GB)
Title: Improvements in automatic plate valves
IPC: F04B39/10
Filed: 1922-02-28
Abstract: 192,939. Marks, E. C. R., (Worthington Pump & Machinery Corporation). Feb. 28, 1922. Check elastic valves. -In valves formed of thin elastic plates free to flex uniformly as well as lift, the end portions are bent and coact with guides which position the valve. Each port a in the valve seat A, Figs. 1, 2, is controlled by a strip valve b which in its open position is supported by a strip c in an abutment C the ports d in which are out of line with the ports c. Each valve b and strip c has its ends bent at 1, 2, which project into recesses 3 and are supported by coil springs e. The recesses 3 and side walls 4 form guides for the valves during the opening and closing movements. In a modification, the, strip c is omitted and the valve contacts with a rounded plunger on the coil spring, or the spring and plunger may be dispensed with. The valve ends may be bent at right angles and used without the spring and strip. In another form, the end is curved around a circular sectioned pipe which takes the place of the abutment member.
Patent GB-548154-A (GB)
Title: Improvements in or relating to roofing tiles or slabs
IPC: E04D3/34
Filed: 1941-05-08
Abstract: 548,154. Slabs and tiles. BOWLER, T. G., WALKER, J., and WALKER (ARCHITECTURAL DECORATIONS), Ltd., J. May 8, 1941. No. 5969. [Class 87 (i)] A plaster tile or slab comprises a flat body 31, Fig. 3, with fabric reinforcement 26, Fig. 2, such as hessian, and stiffening ribs 28, 29, 30 with wooden lath reinforcement arranged T-fashion, the transverse rib 30 having an overhanging or drip formation and recesses. The slab is moulded in a mould 20, Fig. 2, formed by the use of a plaster pattern 5, Fig. 1, having longitudinal ribs 6, 7 and drip formation rib 9, the latter rib being separately formed and secured to the end recesses 8 by means of plaster slurry ; drip recesses or grooves 10 are provided alongside in the adjacent end of the ribs 6, 7.
Patent GB-780698-A (GB)
Title: Improvements in or relating to display equipment
Inventor: KAYE DAVID
IPC: G09F5/04
Filed: 1956-02-27
Abstract: 780,698. Filing papers. KAYE-KARDS, Ltd. Feb. 27,1956, No. 6034/56. Addition to 740,648. Class 146(1) [Also in Group XVIII] In a filing device as in the parent case, the divider member 15 is pivota'lly mounted on the supporting member 10 for movement in its own plane whereby the effective depth of the member 15 may be adjusted to suit that of the rack 12 in which it is to be used. As shown, the member 15 comprises a flat plate of plastic material on which the designating symbol (6) is applied and the plate is pivoted on a pin 16 between lugs 14 on the member 10 which is in the form of a U-shaped spring clip to fit over the edge of the front panel 11 of the rack and having pips 13 for assisting the grip on the panel. The plate 15 has a projecting portion 17 which is positioned over the clip 10 when a narrow rack 12 is used, as shown in dot-dash lines.
Patent GB-471133-A (GB)
Title: An attachment for use in centreless grinding, turning and like machining operations
IPC: B24B5/35
Filed: 1936-02-29
Abstract: 471,133. Grinding. BULLOCK, F. E. Feb. 29, 1936, No. 6112. [Class 60] [Also in Group XXII] An attachment for a grinding or like machine for supporting a workpiece for a centreless grinding operation is of the kind having spacedapart pairs of rollers b freely rotatable on axes parallel to that of the work d, and a further driven roller c carried by a lever e which is biassed in one direction by a spring k, Fig. 1, to hold this roller in driving engagement with the work, which may be a valve, the seating of which is to be faced. The driving roller may be withdrawn to release the work by a handle h.
Patent GB-1424593-A (GB)
Title: Gun or tool employing propellant cartridges
IPC: B25C1/14
Filed: 1973-02-07
Abstract: 1424593 Cartridge-actuated fastener driving tools GUNNEBO BRUKS AB 7 Feb 1973 [7 Feb 1972] 6116/73 Heading B4C [Also in Division F3] The subject-matter of this Specification is the same as that of Specification 1,424,591, but the claims are concerned with the cartridge case extractor.
Patent GB-1130352-A (GB)
Title: Dyestuff fixation
Inventor: EVANS RAYMOND VICTOR
IPC: D06B19/00
Filed: 1965-02-12
Abstract: 1,130,352. Dye fixation. SINGER-COBBLE Ltd. 12 May, 1966 [12 Feb., 1965], No. 6117/65. Heading D1B. Dyes are fixed on yarn or other textile material by passing the yarn or textile material after treatment with the dye through an oil bath the temperature of the oil and the time of immersion being selected according to the nature of the yarn and dyestuff employed, the oil is thereafter preferably worked off in a detergent bath. The oil bath may comprise a vegetable oil or a mixture, of soya bean oil and groundnut oil or liquid paraffin used at 275-300‹F. In examples, nylon, wool and acrilan are dyed with acid, premetallised, reactive and basic dyes.
Patent GB-1378771-A (GB)
Title: Oil compositions
IPC: C10M157/00
Filed: 1971-03-05
Abstract: 1378771 Lubricants SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 3 March 1972 [5 March 1971] 6133/71 Heading C5F Lubricant additive concentrates comprise a solution, in lubricating oil, of (1) a random copolymer of 30-44 wt. per cent butadiene and 56-70 wt. per cent styrene which has been hydrogenated until at least 95% of the olefinic double bonds and no more than 5% of the aromatic unsaturation have been saturated and (2) a polyester which comprises units derived from a C 64  alkyl ester of an α-olefinically unsaturated carboxylic acid. Lauryl or stearyl methacrylate are specified. The polyester may also contain other units, e.g. methyl methacrylate, 4-vinylpyridine and #-hydroxyethyl methacrylate. The concentrate, generally containing up to 25 wt. per cent of (1) and 0À05-1 wt. per cent of (2), may be mixed with the same or a different mineral or synthetic oil to produce a lubricant. Conventional additives may be present.
Patent GB-1381862-A (GB)
Title: Phonograph records
IPC: B29C43/02
Filed: 1971-03-08
Abstract: 1381862 Phonograph records MASSON SCOTT THRISSELL ENG Ltd 8 March 1972 [8 March 1971] 6252/71 Heading B5A [Also in Division G5] A phonograph record (10, Figs. 1-5) of plastics material is provided with a printed label(s) of plastics material compatible with that of the record so that the label and record may be remelted and remoulded together. The label (12) may be electrostatically held within a mould and the record moulded therearound or the label may be located wholly (Fig. 3) or partly (Fig. 4) within a recess (14) in a preformed record. The label may be held in the recess by electrostatic charge and/or ultrasonic or radio frequency welding, or by a pressure sensitive adhesive. The record and label may be formed from P.V.C. The material of the label has a higher melt viscosity than that of the record.
Patent GB-674373-A (GB)
Title: Improvements in apparatus for disintegrating waste paper
IPC: D21D1/32
Filed: 1950-03-13
Abstract: 674,373. Centrifugal pumps. LEJE & THURNE AKTIEBOLAG. March 13, 1950 [July 5, 1949], No. 6255/50. Class 110(i) [Also in Group VIII] Waste paper &c. is defibrated in a tank 1 by a wheel 2 bladed on its upper and lower surfaces, the upper blades 2' circulating the material within the tank, and the lower blades 2<SP>2</SP> acting as pump blades for discharging material that has passed through annular space 10.
Patent GB-1133142-A (GB)
Title: Improvements in rolling mill equipment
IPC: B21B37/64
Filed: 1966-02-14
Abstract: 1,133,142. Rolling. VEBWALTUNGSGESELLSCHAFT MOELLER & NEUMANN OFFENE HANDELSGESELLSCHAFT. 14 Feb., 1966 [9 March, 1965], No. 6330/66. Heading B3M. A prestressed rolling mill stand with closed frames 1 has a mechanical or hydraulic screwdown device 8 and hydraulic stressing cylinders 9, 10 between the chocks 2, 3, for pre-stressing the stand, the cylinders being adapted to be cut-off from a pressure source by controlled valves closely adjacent each cylinder in order to have only small amounts of fluid under pressure. The stressing cylinders 9, 10 and pistons 11, 12 are fitted in the lower chocks 3 and the piston heads 11a, 12a press against the upper chocks 2. The stand is pre-stressed by the cylinders 9, 10 to more than the maximum rolling pressure. Non-return control valves 13, 14 are arranged adjacent the cylinders and are connected to a pressure source through a valve (32), Fig. 6 (not shown), by pipes 15, 16. Pipes 17, 18 are control pipes for opening valves 13, 14 and are connected through valves (38), (38a), Fig. 6 (not shown), to a pressure pipe (39) connected to a pump. Springs (40) in the control valves 13, 14 hold the valve closed when the pipes 17, 18 are not connected to the pump. When the valves 13, 14 are opened the pressure chambers (58), Fig. 6 (not shown), of the cylinders are connected to the pressure source through pipes 15, 16. The hydraulic fluid is oil but mercury may be used. Electrical circuitry controlling the sequence of operation of the valves 13, 14, (32), (38), (38a) is described. The electrical and hydraulic arrangement is such that for each reversal of the motor 30 in the case of reversing rolls the pipes 15, 16 are connected to the pressure source and any leakage of fluid from the cylinders 9, 10 is automatically replaced. In the case of through rolling the valves 13, 14 are opened and closed when photo-cells arranged on both sides of the stand are activated.
Patent GB-115461-A (GB)
Title: Improvements in Nozzles for Fire Hose.
IPC: B05B1/16
Filed: 1917-05-04
Abstract: 115,461. Morris & Sons, J., Morris, J., and Morris, F. May 4, 1917. Combined roses and jets.-In a fire nozzle of the kind capable of discharging separately or simultaneously a solid jet of water through the centre and a sheet or spray through an annular orifice, the outer casing A and the inner member D for supporting the central tube C are formed in separate parts, the latter being formed as a sleeve screwed at the inner end d<1> into the body of the nozzle and at the outer end to receive the deflector e for the annular orifice and having ports d for the passage of water to the annular space between it and the outer member A. The passage of water to the tube C is controlled by a valve B and the annular spray by means of a sleeve G. In the form shown, the body of the nozzle is provided with an enlargement at a<1>, but in a modification this is dispensed with.