baber/WOPTO huggingface dataset:
Patent GB-742745-A (GB)
Title: Improvements in or relating to foundry sand-ramming machines
IPC: B22C15/20
Filed: 1953-06-24
Abstract: 742,745. Moulding-machines. BEECH, A. S., and FOUNDRY EQUIPMENT, Ltd. April 21, 1954 [June 24, 1953], No. 17558/53. Class 83 (1). In a sand-ramming machine an arm 13 carries a ramming head 11 comprising an impeller, a belt conveyer 16, a shoot 23 fixed on the carrier arm beside the conveyer, guide walls 17 along each side of the conveyer to keep sand in place thereon and a movable section 25 in one side wall pivoted so that it can be swung obliquely across the conveyer belt to direct sand therefrom into the shoot, whence it may fall by gravity into the mould-box. Specification 588,325 is referred to.
Patent GB-720431-A (GB)
Title: Improvements in or relating to means for automatically stopping internal combustion engines
Inventor: HAMMOND ARTHUR CHARLES EDWARD
IPC: F02M63/02
Filed: 1952-07-11
Abstract: 720,431. Engine stop-gear. DAVEY, PAXMAN & GO., Ltd. May 20, 1953 [July 11, 1952], No. 17604/52. Class 122 (4). An internal combustion engine wherein the fuel is normally pumped to the fuel-injection pump 10 by a feed pump 12 drawing from a reservoir 9 is automatically stopped, if an operating condition of the engine becomes abnormal, by reversing the direction of flow of fuel between the feed and injection pumps by means of a valve 1 slidable in a ported casing 3 adapted to be connected to the reservoir, the injection pump, and the inlet and outlet of the feed pump. The valve 1 is biased towards its operative position by a compression spring 21 and maintained in its inoperative position, as shown in Fig. 1, by a latch 23. The casing wall has five ports 4, 5, 6, 7 and 8 therein connected respectively to the reservoir 9, the injection pump 10, the feed pump outlet 11, the feed pump inlet 13 and the reservoir 9, and the valve has two axially spaced longitudinal grooves 16 and 18 opening at one end into channels 15 and 17 respectively formed in the valve surface. During normal engine running the valve is in its inoperative condition and the feed pump 12 draws fuel from the reservoir 9 via port 4, channel 15, groove 16 and port 7 and discharges it to the injection pump via port 6, channel 17, groove 18 and port 5. In the event of an abnormal operating condition such as engine overspeed, failure of lubricating-oil pressure or overheating of the lubricating oil or cooling water, the latch 23 is automatically released and the valve is moved to its operative position in which port 4 is closed and the feed pump draws fuel from the injection pump via ports 5 and 7 and channel 15 and discharges to the reservoir 9 via ports 6 and 8 and channel 17. A mechanism is described, Fig. 3 (not shown), in which the latch 23 is disengaged at a predetermined engine speed by a centrifugally operated spring-loaded trip lever driven from the engine shaft. The latch may be operated by a solenoid or thermostatic or pressure-responsive device, or the latch and coil spring 21 may be omitted and the valve 1 actuated by a solenoid controlled by a switch operated by the engine tachometer or a thermostatic or pressure-responsive device.
Patent GB-339326-A (GB)
Title: Process and apparatus for cutting surgical dressings, bandages and the like
IPC: D06H7/04
Filed: 1929-06-07
Abstract: 339,326. Johnson & Johnson (Gt. Britain), Ltd., (Johnson & Johnson). June 7, 1929. Rotary - blade machines; stationary-cutter machines. - Surgical gauze is cut while supported against distor tion by severing both the warp and the weft at one operation. A platen roll 5 covered with emery cloth or other abrasive material 7 has grooves coacting with cutters 10 on a roll 9. The cutters comprise a series of teeth round the circumference each with cutting surfaces 12 to shear the weft in cooperation with the annular grooves 6, and a transverse arcuate cutting edge between the two points to sever the warp, the material passing over the platen roll and held in position by the abrasive material thereon. At least one warp thread is cut. A picker and suction apparatus may be included to remove waste.
Patent GB-974277-A (GB)
Title: Electric switch unit
IPC: H01H13/02
Filed: 1962-05-08
Abstract: 974,277. Press-button retractive switches; indicators for switches. BROOKHIRST IGRANIC Ltd. May 8, 1962 [July 24, 1961], No. 17633/62. Heading H2B. A press-button assembly 10, a transformer 14 and a double-switch unit 16 are secured together by screws 34 in the switch casing engaging internally threaded beads 38 of screws 35 in the transformer housing, which in turn are engaged in threaded holes 70 in a flange 72 of the button housing 20. The button comprises a translucent plastic lens 76 in a holder 74 slidably carried in the housing 20 with sealing rings 78, 80 and retracting spring 90. Two projections (Fig. 5, not shown) at the lower edge of lens holder 74 engage grooves (not shown) in the housing 20 to prevent the button rotating. This ensures that two dependent pins 86 are aligned with pusher pins 64, freely slidable in holes 66 moulded in the transformer housing, and themselves aligned with switch actuating buttons 28, respectively. The transformer housing includes a lamp base 54 for an indicator lamp 60 connected to the transformer secondary winding. If desired, a further switch unit may be attached below the first (Fig. 4, not shown).
Patent GB-477404-A (GB)
Title: Improvements in or connected with conveyors of the belt type
IPC: B65G23/14
Filed: 1936-06-26
Abstract: 477,404. Endless - belt conveyers. MAVOR & COULSON, Ltd., and THOMSON, J. June 26, 1936, No. 17758. [Class 78 (i)] In driving-gear of the kind comprising two or more drums 2, 3 in which the direction of travel of the belt A is reversed during its passage over the drum 2 and a bight of belting is formed in this reversal extending from the other drum 3, round the reversing drum 2, and then away from the latter, a pressure belt B is provided which extends into the bight, passes round the reversing drum 2 between that drum and the conveyer belt, and in its passage into the bight bears upon the conveyer belt where the latter passes over the other drum 3. Screw mechanism 6 is provided for tensioning the belt B by adjustment of the roller 5. In a modification the idler rollers 4, 5 are mounted on parallel linkage mechanism so that as the tension of the belt A increases, a corresponding increase in the tension of the belt B occurs.
Patent GB-1300032-A (GB)
Title: Improvements in or relating to ratchet mechanisms
IPC: F16H29/02
Filed: 1971-05-28
Abstract: 1300032 Ratchet gearing SIEMENS AG 28 May 1971 [29 May 1970] 17770/71 Heading F2Q In a mechanism for converting continuous rotation of an input shaft W1 into intermittent rotation of an output shaft W2, a rocker SW is rotatably mounted on the output shaft W2 and carries pivoted pawls K1, K2 which engage a ratchet wheel SR secured to the output shaft W2, the rocker SW being oscillated by a cam SN secured to the input shaft W1. The spacing of the ratchet teeth and pawls is such that the pawls drive alternatively, and are urged into engagement with the ratchet teeth by springs F1, F2. A spring DF urges a roller R, carried by the rocker SW, into engagement with the cam SN. Over-running is prevented by a spring-pressed felt brake member. A control lever ST is rotatably mounted on the output shaft W2 snd has an arm forming a solenoid armature MA and two lugs N which, under the influence of a spring ZF, are adapted to engage arms FH on the pawls K1, K2, when a solenoid M is not energized, in order to disengage the pawls from the ratchet teeth. The mechanism is applied to a punch card perforator.
Patent GB-351227-A (GB)
Title: Improvements in and relating to film cut-outs
IPC: H01H1/14
Filed: 1930-06-11
Abstract: 351,227. Film cut-outs. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Butler, H. E.;. 210, Ballston Avenue, Scotia, New York, U.S.A.) June 11, 1930, No. 17951. Convention date, June 12, 1929. [Class 38 (i).] A film cut-out comprises a metal disc 3 with a rim 9 and a small disc 4 with a raised part 7 separated by an insulating film of paper etc.; the metal discs are held together by an insulating disc 6 which has a centre hole to engage the projection 7 and is clamped at its outer edge by the spun over rim 9 on the disc 3. Specification 2789/05, [Class 38, Electricity, Regulating &c.], is referred to.
Patent GB-1009464-A (GB)
Title: Electric switch assembly
Inventor: BEER DONALD COURTNEY
IPC: H01H13/14
Filed: 1963-05-07
Abstract: 1,009,464. Press-button retractive switches; switch cases. OTEHALL Ltd. June 2, 1964 [May 7, 1963], No. 17977/63. Heading H2B. Two or more microswitch units a, b are assembled side by side and pivotally connected by a bolt 6 so that, by turning one unit relative to the other about the pivot, the positions of the respective operating knobs 5a, 5c can be adjusted relative to a common actuator, viz. the flange 17 of a push button actuator 16, and the adjustment is effected by a bolt 7 rotatable in a hole 4a in unit a and having an eccentric rib portion 8 rotatable in an enlarged hole 4b in unit b to rock the unit b up and down relative to the unit a. A nut is tightened on the threaded end of each bolt 6, 7, to secure the microswitch units in the adjusted position.
Patent GB-1427393-A (GB)
Title: Hydraulic vane pumps
IPC: F03C1/30
Filed: 1973-04-13
Abstract: 1427393 Rotary positive-displacement pumps ABEX CORP 13 April 1973 [10 May 1972] 17996/73 Heading F1F Separation of each vane 32 from the inner end portion of an inwardly inclined ramp 67 of a cam surface 34 is prevented in an hydraulic pump which comprises restriction means 77, 78 which create a pressure differential between the radially inner and outer edges of each vane so as to urge the vane against the cam, and relief means 58 for relieving the pressure under each vane when the vane engages the central part of ramp 67. Each vane 32 has two sets of restriction means each comprising a restricted orifice 78 at the inner end of the vane the orifice being connected to a groove 63 at the outer end of the vane by a wider passage 77. In use, fluid is drawn into the slot beneath the vane through a suction port 45 in a cheek plate 10, Fig. 2, and this fluid is pressurized by inward movement of the vane when the latter engages ramp 67. This causes fluid to be forced through orifice 78 and create a higher pressure beneath the vane than outwardly of it. This maintains the vane in contact with the cam. To prevent this pressure from producing wear at the central part of the ramp 67 the pressure is relieved through an outlet port 58 in cheek plate 10 which registers with the rounded inner end of each vane slot.
Patent GB-296514-A (GB)
Title: Improvements in the manufacture of phenolic resins
IPC: C08G8/00
Filed: 1927-07-07
Abstract: 296,514. British Dyestuffs Corporation, Ltd., Strafford, N., and Walker, E.E. July 7, 1927. Phenolic condensation prodructs.-Free phenol and soluble condensation products, usually of low molecular weight, are removed from resinous phenolic condensation products by incorporating the resins with an inert filler such as wood, meal or pulp, cotton &c. wastes, asbestos, china clay, fullers earth, &c. and extracting with a solvent such as water, benzene or ether. Instead of incorporating with a filler, the resin may be spread on paper or fabric, and after extraction of the phenolic impurities the sheets may be dried and pressed to form laminated products. The extraction may be preceded, accompanied or followed by adjustment of the pH, preferably to a value beween 3.5 and 7. Specification 259,046 is referred to in this respect. The liquid resole, or the solid obtained by evaporation of water, is incorporated with the filler or spread on sheets in thin layers, and suspended in water. The pH value is adjusted by the addition of soluble acids or alkalies, in the presence or absence of " buffer '' substances such as sodium salts of weak acids. It is preferable to adjust the pH value before extracting the phenolic impurities. After extraction, the resin may either be dissolved off the substratum and used as a varnish, or separated from water, dried and the whole used as a moulding powder. Catalysts, plastics, pigments, &c. may be added before use. Several examples are given.
Patent GB-835377-A (GB)
Title: Carton construction
IPC: B65D5/496
Filed: 1958-06-06
Abstract: 835,377. Cartons. PUTNAM, H. W. P. June 6, 1958 [Jan. 15, 1958], No. 18073/58. Class 18. A carton having flaps 18 extending from the edges of the side walls 12 to form top and bottom walls is provided in one side wall 12s with a slot 20 through which a cardboard handle 38 normally housed in the box may be projected. In the gap between two sets of partitions 22 is located a piece of carboard 26 folded about a crease line 28, forming a central partition the folded portions 30 of which extend across to the opposite wall along it and along each adjacent wall. Between the portions 30 there is a further slidable piece 36 having the handle portion 38 projecting through a slot 34 along the crease line 28 and through the slot 20.
Patent GB-1065686-A (GB)
Title: Apparatus for counteracting forces generated by the reciprocating elements in rotating mechanisms
Inventor: CROWDY EDMUND PORTER
IPC: F16F15/26
Filed: 1964-04-30
Abstract: 1,065,686. Linkwork. HAWTHORN LESLIE (ENGINEERS) Ltd. Feb.  25 , 1965 [April 30, 1964], No. 18083/64. Headings F2K and F2X.  A weight H is suspended from fixed points G by two pairs of pivoted links E, F, pivoted together at points D, and is reciprocated vertically by lateral oscillations of the points D by means of eccentrics B on a driving shaft A. The weight K is guided by a pair of vertical bars K. Springs N are located between the upper surface of the weight H and fixed supporting structure M. The mechanism is used for counteracting unbalancing forces generated by the reciprocating elements of rotating mechanisms.
Patent GB-440107-A (GB)
Title: An improved cover for ignition plugs
IPC: H01T13/06
Filed: 1934-06-20
Abstract: 440,107. Two-part couplings. ELLIOTT, A. G., Darley Dene, Belper Road, Derby. June 20, 1934, No. 18231. [Class 38 (i)] [See also Group XXVII] A cover made of synthetic resin or other insulating-material makes a push-fit within the cylindrical recess in which the sparking- plug is fitted. It encloses a hollow metal cap d<1> within the end of which is a spring ring d<3> clipping on to the terminal of the plug. The screwed end f<1> of a conductor f projects into the socket e and penetrates the cable-end. The cover may be in two parts, and may be metal-covered for screening radio apparatus.
Patent GB-768572-A (GB)
Title: Improvements in or relating to apparatus for selecting stabilized frequencies for controlling an oscillator
IPC: H03L7/20
Filed: 1954-06-22
Abstract: 768,572. Electromagnetic brakes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 22, 1954 [June 23, 1953], No. 18282/54. Class 103 (1). [Also in Groups XXIV and XXXV] In an electromagnetic brake, a ring 19 forms the axially movable armature of a fixed pot magnet 18 and is provided with bolts 29 sliding in axial bores in a sleeve 30 keyed to the rotatable shaft 24. The return spring 20 is a resilient dish bearing on nuts 32 secured to bolts 29.
Patent GB-879913-A (GB)
Title: Door handle assemblies
IPC: E05B3/06
Filed: 1959-05-29
Abstract: 879,913. Door handles. LEGGE & CO. Ltd., J., and LEGGE, J. E. May 16, 1960 [May 29, 1959], No. 18301/59. Class 44. In a door handle assembly adaptable for right or left hand, an abutment 18 is formed on a washer 16 riveted to the shank 12 of the handle 11, and co-operates with an abutment comprising a spring clip 21 supported on a projection 20, and with one of two fixed abutments 19, on the rose plate 10. The assembly is altered for opposite hand by swinging the handle through 180 degrees after removing the spring clip 21, and transposing the tension spring 22 to the other of the two anchor studs 24.
Patent GB-656614-A (GB)
Title: Method of treating iron ores
IPC: C22B1/10
Filed: 1948-07-07
Abstract: 656,614. Reduction of ores. STANDARD OIL DEVELOPMENT CO. July 7, 1948, No. 18322. Convention date, March 11, 1948. [Classes 72 and 82 (i)] Oxidic iron ore in a subdivided state is charged into a primary high temperature reducing zone wherein the oxide is partially reduced to a lower oxide by a gaseous medium and melted, the melted oxide being separated and reduced to the metallic state by a gaseous medium at a temperature above the melting point of iron, the molten iron being collected in a pool into which is introduced a fuel gas and oxygen which react to produce the reducing gas and liberate heat to keep the pool molten, and finally the molten iron is withdrawn. As shown, finely divided iron oxide ore is withdrawn from a hopper 2 into a preheated air line 6 from which it is discharged into a vessel 1 where a strongly reducing gas obtained from the lower part of the vessel 1 is burned to produce a weakly reducing gas which reduces the iron ore to a lower oxide existing as a liquid at the prevailing temperature. The droplets of lower oxide coalesce and form a pool 10 into which are blown air, through pipe 11, and fuel gas, comprising a preheated, normally liquid or gaseous hydrocarbon, e.g. methane, through pipe 12. The resulting gas is strongly reducing and completes the reduction of the oxide to iron, which is withdrawn, and the excess reducing gas is burned in the upper part of the vessel 1. The effluent gases may pass through a tortuous passage either above or down the sides of the vessel 1 to remove any droplets entrained therein, which droplets are returned to the pool 10. The pipes 11 and 12 may enter the pool above the bottom, thus leaving a quiescent pool in which the liquid iron may collect. The air and iron ore and, if required for temperature control, a small quantity of fuel gas may enter through a pipe set tangentially to the vessel in order to produce a swirling movement. The Specification as open to inspection under Sect. 91 includes also the application of the invention to non-ferrous ores. This subject-matter does not appear in the Specification as accepted.
Patent GB-731281-A (GB)
Title: Improvements in or relating to the hot working of ferrous metal articles
Inventor: HINDE JOSEPH
IPC: C22F1/00
Filed: 1952-07-21
Abstract: 731,281. Forging; working at specified temperatures. BRISTOL AEROPLANE CO. Ltd. July 16, 1953 [July 21, 1952], No. 18399/52. Classes 83 (2) and 83 (4). Making compressor blades.-A method of hot working a ferrous metal blank comprises coating the surface of the blank before heating with a metallic paint composed mainly of aluminium particles and a low temperature binder. In the manufacture of a compressor blade for a gas turbine from a mild steel or low alloy steel blank, the latter is first roughly shaped by upsetting, swaging or extrusion and is then cleaned by shot blasting. It is then sprayed with or dipped into the metallic paint to provide a coating of approximately 0.001 inch thick. This coating is dried by heating for one hour at 160‹ C. in a normal atmosphere. The blank is then heated for 5 minutes at 1100‹ C. in a normal atmosphere and this causes the outer surface of the paint to be oxidized and form a self-healing coating. The blank is then forged and thereafter reheated to forging temperature and re-forged. The surface of the blank is then cleaned by hot blasting, a second coat of paint is applied and dried. The blank is again heated to forging temperature and forged to final shape. Finally, the finished blade is subjected to normalizing treatment in a non-oxidizing atmosphere and is then polished.
Patent GB-1107672-A (GB)
Title: Process for operating diaphragm and mercury electrolytic brine cells
IPC: C25B15/08
Filed: 1966-04-27
Abstract: <PICT:1107672/C6-C7/1> In the electrolysis of alkali metal halide brines (e.g. of NaCl brine to produce Cl2 and NaOH), co-ordinated operation of diaphragm and Hg cells is employed, alkali metal halide from the catholyte of the diaphragm cell being purified and supplied to the Hg cell.  By the process, NaClO3 does not build up in the diaphragm cell circuit and the sulphate impurity content of recycled brines is controlled.  The Fig. illustrates the electrolysis of NaCl brine.  Raw brine is purified from Ca and Mg impurities at 10, saturated with NaCl at 14 and electrolyzed in a diaphragm cell 20 to produce Cl2.  The cell liquor, which contains NaOH, NaCl and impurity Na2SO4, is removed via line 22 and evaporated to produce a 50% NaOH solution and a salt cake comprising NaCl and Na2SO4.  The salt cake is repulped at 26 with H2 from a line 28 and impure brine from a line 30 thus dissolving some of the Na2SO4. The resulting slurry is supplied by a line 32 to a separator 34 where it is washed with depleted brine from a Hg cell 52 to dissolve further Na2SO4.  The brine from the separator contains NaClO3 impurities derived from the Hg cell in addition to the Na2SO4 impurities.  This impure brine is removed from the system by line 35 except for the portion supplied through line 30 for the repulping.  The salt fraction from the separator 34 is low in Na2SO4 and NaClO3.  It is divided into two portions, the first being used to resaturate at 40 depleted recycle brine from the Hg cell 52, the brine being recycled through lines 36, 42, 44, 50.  The second salt portion from the separator 34 is supplied by line 16 to saturate the brine supplied to the diaphragm cell 20.
Patent GB-466074-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23D14/30
Filed: 1936-07-03
Abstract: 466,074. Inverted gas burners. NICO LIGHT CO., Ltd., and GREEN, R. E. July 3, 1936, No. 18509. [Class 75 (i)] In an inverted burner, the inlet to the mixing- chamber A is provided with a serrated flange D and each nozzle C with a perforated plate C<1> for preventing backfiring. The recesses in the flange D may be parallel, or at an angle, to the axis of the inlet. The burner may be made of ceramic ware with one or more integral, or detachable, nozzles.