baber/WOPTO huggingface dataset:
Patent GB-844246-A (GB)
Title: Improvements in and relating to gas turbine plants
Inventor: FORSLING BENGT ERIK GUSTAF
IPC: F02C9/18
Filed: 1956-09-19
Abstract: 844,246. Gas turbine plant. BRITISH THOMSON-HOUSTON CO. Ltd. Sept. 19, 1957 [Sept. 19, 1956], No. 28718/56. Class 110(3). In a gas turbine plant having in series flow relationship a high-pressure turbine 9 driving a compressor 2, a low- or intermediate-pressure turbine 10 supplying output power, such as for ship propulsion, a by-pass valve 12 being arranged in a duct interconnecting the inlet and outlet of the power turbine for the control of the output power, no control valve or stop valve is provided in the flow of the working medium between the by-pass valve and an upstream point where the working medium first takes in heat, a controlled relief valve 13 is provided at a point of the flow of the working medium between the compressor outlet and the compressor turbine inlet. In the plant shown, air from the compressor 2 passes through a duct 3 to the inlet header 4 of a heat exchanger 5 in which the air is pre-heated by turbine exhaust gases. The outlet header 6 of the heat exchanger is connected by a duct 7 to a combustion chamber 8 from which gases pass in series through the turbines 9, 10. The relief valve 13 is controlled in dependence on the speed of the high-pressure turbine and compressor shaft by means of a governor 14 but it may alternatively be controlled manually. The fuel supply may be controlled by a speed governor and the relief valve by hand, the relief valve being preferably interlocked with the operation of the by-pass valve. In the case of a closed cycle plant, air blown off from the relief valve could be led for example to a pre-cooler in front of the compressor. In a further arrangement the power turbine is an intermediate pressure turbine disposed between a high-pressure turbine driving a high-pressure compressor and a low-pressure turbine driving a low-pressure compressor. Specifications 607,884 and 844,247 are referred to.
Patent GB-811678-A (GB)
Title: Improvements in or relating to tipping bodies for commercial vehicles
Inventor: MEATS WILLIAM HENRY
IPC: B62D33/02
Filed: 1956-09-20
Abstract: 811,678. Tipping vehicle bodies. TELEHOIST Ltd. Feb. 22, 1957 [Sept. 20, 1956], No. 28730/56. Class 108(1) An all-metal fixed-side tipping body for a commercial vehicle has a combination of longitudinal side-panels 13 bent towards their lower longitudinal edges, outwardly and downwardly to form side sills 16 affording marginal rigidity, and a floor sheet 20 the longitudinal side edges of which are upwardly turned to form radiused flanges 21 connected to the side panels 13 adjacent the top of the sills 16. Floor sheet 20 and the inwardly bent lower flange 19 of the side sills 16 are secured to a series of transverse members 23. Extra rigidity is imparted to the substantially flat side panels 13 by spaced vertical stiffeners 24 and by reinforcing channels 15 formed at the upper longitudinal edges of the side panels. The corner pillars 25 of the body also form part of the side panel assembly, the head board 10 and tail board 11 being attached thereto.
Patent GB-842877-A (GB)
Title: Improvements in or relating to automatic friction drop hammers
Inventor: WELLS LIONEL WRAITH
IPC: B21J7/44
Filed: 1956-09-20
Abstract: 842,877. Drop hammers. MASSEY Ltd., B. & S., WELLS, L, W., and SCOTT, K. Dec. 20, 1957 [Sept. 20, 1956], No. 28841/56. Class 83 (4). An automatic friction drop hammer comprises fluid-actuated means 10 controlled by the foot treadle for so operating the pull cord 24 which contacts the friction lift mechanism 25, that the tup continues to rise and fall whilst the treadle is depressed, said means also permitting the pull cord to be operated manually if desired. The means 10 comprise a vertical air cylinder containing a piston 20, Fig. 6, mounted on a hollow piston rod 19 consisting of a portion 19a and a smaller diameter upper portion 19b. The piston 20 can move radially relatively to its piston rod and is sealed thereto by rubber sleeves 21, 22. At its lower end piston rod 19 projects out of the cylinder 10 and engages a stop 28 on the pull cord 24 which passes through the hollow piston rod and has a handle 27. Pressure air is admitted constantly below piston 20 to bias it upwardly and for raising the tup air is also admitted above the piston which descends due to the differential pressure and pulls the cord. The downstroke of the piston controls the length of the upstroke of the tup which falls when the space above the piston is opened to exhaust. The handle 27 may be pulled to effect manual control without disturbing the piston 20. In another embodiment, Figs. 7-9 (not shown), the piston rod is of uniform diameter and compressed air at reduced pressure is admitted constantly below the piston through a pressure-reducing and relief valve.
Patent GB-247889-A (GB)
Title: Improvements in vehicle wheel rims
IPC: B60C7/12
Filed: 1925-11-17
Abstract: 247,889. Fairweather, W. C., (Gummiwerke Fulda Akt.-Ges.). Nov. 17, 1925. Non-metallic elastic bodies and cores; rims.- A cushion tyre having a divided base and a two-part foundation band A1, A2 with its outer face of concave section has the facing edges of the bands curved radially outwards or inwards according to whether the walls of the cavity converge towards or from the. tyre base, as shown at B4, B5 and 137, in Figs. 1 and 2, respectively.
Patent GB-174151-A (GB)
Title: Improvements in and relating to adjustable drills, reamers, taps and like tools
IPC: B23B29/034
Filed: 1920-10-13
Abstract: 174,151. Samuel, G. Oct. 13, 1920. Cutters and cutter bars; boring heads and bars.-Cutter-carrying blocks 3, 4, Fig. 1, are equally and oppositely adjusted across a diametral groove of the shank 1 by a right and left handed screw 5 and are further moved into binding engagement with the threads of the adjusting-screw by means of one or more countering screws 6. The facing, boring, or other cutters 16 are locked in dovetailed grooves in the blocks by cotters 19 which may be disposed either along or transversely to the roots of the cutters. The countering-screw may be graduated for fine adjustment, and may be arranged to act either in compression or tension. For stiffening purposes the cutter blocks may be provided with undercut lateral projections 25, Fig. 15, engaging similarlyshaped parallel ways on the end of the shank, or an end cap 21, Fig. 2, may be fitted, spigoted as shown, and formed with a central bridge-piece 22, Fig. 6. The tool may be supported at both ends by providing the bridge 22, Fig. 24, of the stiffening-cap with an extension 34 adapted to be screwed, &c. to the spindle 33. In a further modification the shank is formed in halves between which a stiffening-member, 39, Fig. 26, is riveted, the halves being subsequently united by screwed or shrunk-on rings 36, 37. In this modification the shank is screwed directly to the machine spindle. Taps; reamaers.-The cutters 26, Fig. 22, are disposed longitudinally in the cutter-blocks, which latter are adjusted by the screw 5, Fig. 21, journaled on the stiffening-bridge 22 and locked by two countering-screws 6, 27.
Patent GB-246425-A (GB)
Title: Improvements in shearing machines for metal
IPC: B23D21/00
Filed: 1925-11-17
Abstract: 246,425. Pels, H. Nov. 17, 1925. Cutting girders and profile bars.-A machine for shearing profile bars has passive cutters 21, 22, 23, Fig. 3, and active cutters 1, 15. 19, Fig. 1. To sheer an H-bar 2, the latter is supported on the blade 22, and by blades 21, 23 connected by linkage 30, 31 and actuated by a cam 28 on a shaft 29. The active cutter 1, on a lever 4, is then swung about a pivot 5 by an eccentric 8 on the shaft 29 to lower the cutter on to the bar until projections 11, 12 contact. The pivot 5 is carried on a lever 7, carrying blades 15, 19, pivoted on a pin 6. Continual movement of the eccentric swings about the pivot 6 the blades 1, 15, 19 which co-operate with the blades 22, 21, 23 to shear the web and the top left flange, the right flange, and lower left flange respectively. The blades 15, 19, 21 are adjustable by screw means.
Patent GB-1124880-A (GB)
Title: Continuous measurement of moisture
IPC: G01N22/04
Filed: 1967-06-23
Abstract: 1,124,880. Measuring moisture content. LIGGETT & MYERS TOBACCO CO. June 23, 1967 [June 23, 1966], No. 29013/67. Heading G1N. In apparatus for continuously measuring the moisture content of tobacco comprising a chute 16 and a pair of micro-wave horns 34 for transmitting micro-wave energy therebetween through the tobacco in chute 16, a diverting paddle 22 (or a sliding cover (46), Fig. 4 (not shown), admits tobacco to chute 16 or diverts tobacco according as the level of tobacco in the chute 16 is below or above the level of a photo-electric cell 24 while picker rolls 32 remove tobacco from the bottom of the chute at a predetermined rate. A thermistor 36 is provided for temperature compensation. A removable baseboard (33) is insertable beneath the rolls 32 to enable the tobacco to build up in the chute 16 at the start of a run. The system may be calibrated using samples of known moisture content. In Fig. 5, a switch 56 enables a check to be made on drift of the generator 52. In the embodiment described with reference to Fig. 4 (not shown), the cover (46) controls access of the tobacco on a main conveyer to a conveyer (40) leading to the chute 16.
Patent GB-1276704-A (GB)
Title: Valve-controlled diaphragm pump
IPC: H01M8/04029
Filed: 1969-06-09
Abstract: 1276704 Valves SIEMENS AG 9 June 1969 [7 June 1968] 29123/69 Heading F2V [Also in Division F1] The admission of actuating gas to the working chamber of a diaphragm pump is controlled by two mechanically actuated snap-action threeway valves. In each valve in one embodiment, Fig. 3, a closure member 73 is movable to selectively close part 74 or 75 by means of a push-rod 71 acting on a leaf spring 72a connected to the member 73 via a U-spring 72b. The members 73 of the two valves may be connected to the same U-spring to be actuated in common. In another embodiment, Fig. 4a, the closure member 86, 87 of each valve is connected to a part 90a of a stirrup 90, 90a which carries a pretensioned leaf spring 91. Push-rods act on the spring 91 (Figs. 4b-4d, not shown) to effect snap over this in turn causes movement of the stirrup and the closure members. In a further embodiment (Fig. 7, not shown) the stirrup is connected to the stems of ball valve members of three-way valves.
Patent GB-1471049-A (GB)
Title: Transfer roller assembly in a reproduction machine
IPC: G03G15/16
Filed: 1974-07-01
Abstract: 1471049 Transferring developed electrostatic images XEROX CORP 1 July 1974 [2 July 1973] 29160/74 Heading B6C A developed electrostatic image on endless photoconductive belt 12 is transferred to a copy sheet by electrically biased transfer roller 32 mechanically biased against the copy sheet, the mechanical bias being sufficient only to maintain uniform contact with the endless surface, transfer of the developed image being effected solely by the electrical bias. The ratio of the radius of curvature of the belt 12 at the point of transfer to the radius of the transfer roller being at least 3, and preferably 3-3À5. The roller 32 may be supported as shown in arms 34b pivoted at 40 to arm 36b. Shaft 60, rotatable by lever 72, carries cam surfaces coacting with arm 34b to bring roller 32 out of contact with belt 12. The arms 34b and 36b may be urged apart by a spring therebetween (Fig. 4, not shown), and a nut may be provided to adjust the tension in the spring. Brush 48 is provided to clean the surface of roller 32. The roller 32 may be electrically biased.
Patent GB-678567-A (GB)
Title: Improvements in apparatus for practising golf or other game where a stick, bat or club is used to hit a ball or similar object
IPC: A63B69/36
Filed: 1949-11-15
Abstract: 678,567. Game-practising appliances. HAWKINS, T. J. Feb. 12, 1951 [Nov. 15, 1949], No. 29208/49. Class 132 (ii). For practising strokes at games such as golf, a base-board 1 has an upper longitudinal channel 2 along which are formed transverse spaced lower slots 5 accommodating resilient, inverted 'T-shaped pegs 7 which can be covered with chalk to mark the face of a club, the nature of the markings indicating the correctness of the stroke. The peg is milled to take the chalk.
Patent GB-1019954-A (GB)
Title: Improvements in or relating to railway vehicles
Inventor: ATTAC WILLIAM HARTIN PETERSON
IPC: F16F9/48
Filed: 1963-07-24
Abstract: 1,019,954. Railway vehicle undercarriages. PULLMAN Inc. July 24, 1963, No. 29279/63. Heading B7L. [Also in Division F2] An improvement in the invention described and claimed in the parent Specification comprises the provision of an hydraulic cushion device 18a, Fig. 1, having a housing 660 fixed between stops 662 secured to the railway vehicle underframe 21 and an operating rod 666 the two ends 672 of which engage abutment members 650 rigidly fixed to the framing members 42 of the load carrier 14 longitudinally slidable on the underframe. Moreover the cushion travel characteristics are either automatically controlled by the load sensing means 95 or by manual adjustment means. Referring to Fig. 3, the cushion housing 660 has secured therein a cylinder 670 having a row of orifices 680 and in which is slidable a piston head 668 secured to the rod 666. Rotatable on the cylinder is a sleeve 690 provided with a row of orifices 692 to cooperate with the orifices 680, the sleeve being surrounded by an annular chamber 693. As the piston head moves under coupler impacts, hydraulic liquid is moved from one end of the cylinder through orifices 680 under the control of the orifices 692 into the chamber 693 and thence to the other end of the cylinder through orifices 692 and 680. The device is recentred by springs 678, Fig. 1. As shown in Fig. 3, the sleeve 690 has a bevel gear ring 694 at one end engaged with a bevel gear 696 on a shaft 700. The latter is operated by a pinion 702 from the load sensing means 95 as described in previously mentioned Specification. Alternatively, the shaft may be operated manually as described with reference to Fig. 2 (not shown). The sleeve may be provided with a worm-gear instead of the bevel gear and engaged by a worm as described with reference to Fig. 5 (not shown). In another embodiment described with reference to Fig. 6 (not shown) the rotatable sleeve is operable manually by the use of a screw driver engaging a slot in the end of the sleeve operating shaft. The sleeve in this case is provided with several rows of orifices selectively engageable with the single row of orifices in the cylinder. The end of the sleeve opposed to the bevel gear is notched at the ends of the rows for engagement with a spring-urged ball in the housing, the notches and associated indicia appearing, when selected, in a window provided in the housing. The latter is also provided with a flexible wall portion to avoid undue pressure build-ups in the housing. In a further modification the cushion housing may be fixed to the load carrier 14 and the abutment stops 650 fixed to the vehicle underframe.
Patent GB-1371452-A (GB)
Title: Method of making coarse silica
IPC: C01B33/187
Filed: 1972-06-22
Abstract: 1371452 Coarse silica aggregates W R GRACE & CO 22 June 1972 [23 June 1971] 29282/72 Heading C1A Particulate silica aggregates of primary particle size 200-500 mÁ are made by either (1) mixing an alkalimetal silicate aqueous solution with an ammoniated aqueous solution of formic, acetic, propionic or carbonic acid at a pH of 9À9 to 11 or (2) mixing the silicate solution, ammoniated to a pH of from 10-11À5 with a solution of formic, acetic or propionic acid in an alcohol so as to produce said aggregates which may be washed, dried and deaggregated in a fluid energy mill. Preferred alcohols for use in process (2) above are ethanol, a propanol, a butanol, a pentanol or a hexanol.
Patent GB-1468914-A (GB)
Title: Espagnolette for shutters windows french windows and the like
IPC: E05C9/18
Filed: 1974-07-03
Abstract: 1468914 Window &c fastenings S W BENGTSSON 3 July 1974 [9 July 1973] 29403/74 Heading E2A An espagnolette for shutters, windows French doors &c having a portion 16 swing- ably mounted in relation to a casement 17 comprises at least one rod 10 reciprocable along one of the vertical sides of the swing- able portion 16 and means for operating at least one bolt 15, pivotable about a horizontal axis 22 and which in a locked position extends into an aperture 20 defined by a keeper plate 21. The or each bolt is formed as a hook 24 so that in the locking position it engages the keeper plate to prevent separation of the swingable portion from the casement in the plane of the latter and the bolt is wedge-shaped at least at its vertical side face 26 remote from the casement so that when the bolt is brought into locking position it co-operates with the adjacent edge of the opening 20 to force the swingable portion towards a jamb 18 on the casement.
Patent GB-191880-A (GB)
Title: Improved house service cutout combined with sealing chamber
IPC: H01H85/20
Filed: 1921-11-04
Abstract: 191,880. Macintosh Cable Co., Ltd., and Watson, D. D. Nov. 4, 1921. Drawings to Specification. Fusible cut-outs.-House service fuse-boxes combined with seating chambers and composed of insulating material, for example, a mixture of asbestos and silica impregnated with an extract of coal tar, have the fuse contacts moulded into the said material.
Patent GB-1369187-A (GB)
IPC: H01F7/14
Filed: 1973-06-21
Abstract: 1369187 Electromagnets ROBERT BOSCH GmbH 21 June 1973 [22 June 1972] 29435/73 Heading H1D In an electromagnetic device, e.g. a relay comprising an iron core, an exciting coil thereon, and an armature completing the magnetic circuit; a working gap interposed between the core and the armature is defined by at least one magnetically inert film, e.g. plastic or non- magnetic metal, of predetermined thickness adherent to the core and/or to the armature; one surface thereof being made self-adhesive.
Patent GB-943928-A (GB)
Title: Acid addition compounds of 3-pyrazolidones and photographic developers containing them
Inventor: AXFORD ANTHONY JOSEPH
IPC: G03C5/30
Filed: 1960-08-25
Abstract: The invention relates to acid addition salts of aromatic sulphonic acids with compounds of the general formula: <FORM:0943928/C2/1> where R1 R2 R3 and R4 which may be the same or different are hydrogen atoms or hydrocarbon groups e.g. alkyl, aryl, aralkyl or aryl substituted with hydroxy, alkoxy hydroxyalkyl, amino, substituted amino, nitro, sulphonic or carboxylic groups or halogen atoms. The aromatic sulphonic acids are of the benzene, naphthalene and anthracene series.  Toluene, xylylene, naphthalene, and anthracene mono- and poly-sulphonic acids being particularly suitable. Examples are given in which the acids used are p toluene sulphonic acid and naphthalene-1:5-disulphonic acid.  The compounds may be used in photographic developing compositions (see Division G2). Specifications 542,502,811,185 and 898,984 are referred to.
Patent GB-1285837-A (GB)
Title: Improvements relating to image reproduction systems
IPC: G01T1/164
Filed: 1970-06-18
Abstract: 1285837 Cathode-ray tube displays; local viewing PICKER CORP 18 June 1970 [18 June 1969] 29677/70 Headings H4F and H4T The output signals of a scintillation camera 11 (Fig. 1)-e.g. responsive to the distribution of a radio-active isotope in a patient-are converted to X-Y co-ordinate position signals in respective computer means 12, 14 and further means 14 are provided for adding a cyclic variation to each position signal so that when the latter are utilized via the X and Y deflection means of an oscilloscope 15 to reproduce a display of the isotope distribution as a pattern of discrete light spots each spot is effectively enlarged and a more continuous image pattern is produced. The means 40 comprises identical circuits 45, 46 (Fig. 2) for producing the required cyclic variations for the X and Y components respectively. Both circuits are fed from a +D.C. power supply including a load resistor R1 and a filter capacitor C1 and comprise, as shown in respect of the Y circuit 46, an oscillator 50 producing negatively going pulses (50, Fig. 3), a bi-stable multivibrator 51 producing a square wave output (51, Fig. 3), an integrator 52, producing a sawtooth wave output (52, Fig. 3), an amplifier 53, a voltage sensitive waveforming circuit 54 producing the waveform 54 (Fig. 3) and an amplifier 55 the gain of which may be adjusted by potentiometer 80 to vary the size of the produced spots. Because of the shape of the cyclic variation deflection waveform the spots are distributed around the centre of the location determined by the X and Y position signals in a Gaussian distribution. In the operation of the arrangement a pulse height selector 13 unblanks the beam in response to scantillations in a predetermined intensity range and during the production of the display a rapid blank-unblank of the beam is effected. The circuit of Fig. 2 may be arranged to provide cyclic deflection waveforms having the forms shown at 100 and 101 (Fig. 5) instead of the forms 54-55.
Patent GB-619043-A (GB)
Title: Device for the transmission of calling and clearing signals in long distance telephonic circuits
IPC: H04Q1/446
Filed: 1945-11-08
Abstract: 619,043. Voice frequency signalling. SOC. ANON. DE TELECOMMUNICATIONS. Nov. 8, 1945, No. 29797. Convention date, April 22, 1943. Drawings to Specification. [Class 40 (iv)] In voice frequency ringing equipment for use on four-wire circuits, the low frequency and voice frequency signal generators are connected in parallel with the two-wire termination and the outgoing pair of the four-wire circuit respectively without breaking the talking circuit.
Patent GB-669447-A (GB)
Title: A rack for suspending and supporting clothing, laundry and other articles
IPC: A47B55/02
Filed: 1949-11-22
Abstract: 669,447. Garment racks; brackets. ADLER, H. Oct. 6, 1950. [Nov. 22, 1949] No. 29873/49. Class 52 (v). A supporting rack comprises a main tubular grid frame 1 and side support frames 7 with depending legs attached to the main frame by means of eye portions 5 journalled on rods 6 fixed into adjacent portions of the frame 1. The side supports may thus be swung to be flat against the underside of the main frame. Each support has a hook 8 with holes 10 so it may be hooked over an article or screwed into position. An extension grid is journalled on a cross-bar 2 and may be held in the position shown in Fig. 4 by a clip 12 or may be swung outwardly to project beyond the grid. A curtain 13 may be suspended from the grid to form a wardrobe, clips 14 being provided to support extra garments. A clip 15 may be provided to hold the side supports in folded position.
Patent GB-800947-A (GB)
Title: Divided last and process of making the same
IPC: A43D3/02
Filed: 1956-10-02
Abstract: 800,947. Lasts. McNEILL, A. W. Oct. 2, 1956, No. 29940/56. Class 17(1) [Also in Group XXIII] To form a divided hinged last a solid last on a carrier is guided towards a band saw by means which causes the last to be presented in a path normal to the inclined front line of the last cone to form an initial cut along that path, and then rocks the carrier so that as the latter is further advanced a continuing cut is made which is inclined inwardly and toward the heel of the last and is caused to terminate short of the last bottom. As shown the last parts are joined by a tension link 20 engaging pins 21, 22 and are latched in position by engagement of a spring-pressed pivoted latch link 23 with a pin 24. In manufacture the solid last is supported by pins 39, 40 on a plate 38 adjustable angularly on carrier 35, the latter being supported by arms 36, 37 having rolls which engage respectively in cam slot 34 and straight slot 33. As the carrier is moved towards the band saw 31 a cut is first made at 13. then, as arm 36 moves downwardly in slot 34. the last is moved angularly and the cut is continued at 14. The bottom cut 17 is made before or after cut 13, 14, and separation is completed by breaking the wood between the ends of cuts 14, 17.