baber/WOPTO huggingface dataset:
Patent GB-623747-A (GB)
Title: Improvements in or relating to folders for printing presses
IPC: B65H45/22
Filed: 1946-07-11
Abstract: 623,747. Longitudinal web-folders for printing presses. GOSS PRINTING PRESS CO., Ltd. July 11, 1946, No. 20792. Convention date, July 20, 1945. [Class 100 (i)] In a mounting for a printing press former including a bracket adapted to support a triangular former plate with its apex lowermost and with its upper edge adjacent a web guide roller, the bracket is mounted for pivoted movement about an axis parallel to the axis of the web guide roller and is disposed to the rear of the vertical plane passing through and containing said roller axis such that the former plate and the axis of the bracket are disposed on opposite sides of the said vertical plane. The bracket 25 carrying the former plate 10 is pivoted on a shaft 28, the axis of which lies in the plane B passing through the axis of the web guide roller 30 and the point of contact of the roller 30 and the arc A described by the upper edge of the former plate rotating above the axis of the shaft 28. Angular adjustment of the former is effected by a screwed rod 50 and a hand wheel nut 62 rotatable in a crossshaft mounted in brackets fixed to the machine frame and is limited to half a turn in either direction by a stop-pin 65 projecting from the cross-shaft and a stop-pin 66 projecting from the forward face of a sleeve 72, which carries a dial 71, co-operating with a fixed pointer 70. The former may be adjusted relatively to the bracket by means of a screw 40, the former 10 being provided with keys 36 and 37 and the bracket 25 with keyways 39.
Patent GB-662023-A (GB)
Title: Improvements in and relating to spectacles
IPC: G02C1/04
Filed: 1949-08-10
Abstract: 662,023. Spectacle frames. CURTET, C. L. Aug. 10, 1949 [June 3, 1949], No. 20853/49. Class 97 (i). The frame comprises a front part 1 with side arms 3 hinged thereto and having extensions 2 to which the lenses 6 are respectively attached by a single screw 7, rotation of the lenses being prevented by engagement thereof with a pair of projections 8 on each extension. The projections may be undercut to receive the lens edge or the latter notched to receive the projections. Pads 12 may be attached to the lenses to rest on the face of the wearer. The lenses may be coloured for use in sun glasses. The frame part 1 may have a portion 9 to which the side arms are hinged and which may be adjusted by bending to fit the frame to the wearer.
Patent GB-1092704-A (GB)
Title: Record changer adaptor
IPC: G11B3/68
Filed: 1966-05-11
Abstract: 1,092,704. Gramophone record adaptors. K. MATSUKATA. May 11, 1966, No. 20881/66. Heading G5R. The two parts of an adaptor similar to that described in Specification 968,449 are releasably secured to a thin-foil record 12 by pieces of double-sided adhesive tape (7A, 7B, 7C, 7G, Figs. 3a and 4), or the equivalent (Fig. 3b). Part of the inner periphery of the adaptor ring 1 is branched off to form a flexible tongue 5 carrying the inner end of the run-in groove 2 which thereby may be accurately registered with the record groove. The lower member (8) of the adaptor has a thicker annular portion (9, Figs. 5a and 6b) coaxial with the centre hole, in order to deal with different types of auto-changer.
Patent GB-479344-A (GB)
Title: Improvements in or relating to electric muffle furnaces particularly for brazing tool tips to tool shanks
IPC: B23K3/04
Filed: 1936-07-28
Abstract: A furnace muffle is made from an iron alloy containing 28 per cent of chromium, 1 per cent of nickel, 0,25 per cent of carbon, and 1 per cent of manganese.
Patent GB-1461295-A (GB)
Title: Process for the production of epsilon-carconitride layers on ferrous metal parts
IPC: C23C8/32
Filed: 1974-05-13
Abstract: 1461295 Gas carbo-nitriding J AICHELIN 13 May 1974 [17 May 1973] 21003/74 Heading C7U [Also in Division F4] An epsilon-carbonitride layer is formed on the surface of a ferrous part by treatment in an atmosphere comprising ammonia, hydrogen, carbon monoxide and carbon dioxide in proportions such that 1 to 10, where "p" denotes the partial pressure (in kg/cm<SP>2</SP>) of the gas denoted by the subscript. Preferably the treatment is carried out at 500- 650‹C, particularly 570‹C, in an atmosphere containing 2 to 20 volume per cent in total of Co, CO 2 , and dissociated ammonia, and the gas mixture is obtained by adding ammonia to combusted gas in the ratio 1:0À3 to 1:3, the combusted gas resulting from the gas combustion used to heat the treatment furnace. A finely divided and preferably oxidized, iron catalyst may be present in the gas mixture. The process-may be carried out in a furnace with OI without air-locks, the chamber being flushed with combusted gas until the nitriding temperature is reached, when ammonia is introduced. The latter is then discontinued and a flow of combusted gas maintained while the work cools. In a particular embodiment, air and combustion gas supplied through lines 4 and 5 are burnt in radiation tube 3, and the products drawn off by line 7 to cooler 14. Some or all of the combustion products are then returned to the chamber together with ammonia, the mixed gases being caused to pass over catalyst layer 13 by fan 11. An alternative apparatus for continuous operation is shown in Fig. 2, wherein the outlet gas lock 26 discharges into a quenching bath 30.
Patent GB-443338-A (GB)
Title: Process for the production of lower boiling hydrocarbons by destructive hydrogenation of liquid carbonaceous materials of higher boiling point range
IPC: C10G47/00
Filed: 1934-10-30
Abstract: Lower boiling hydrocarbons, e.g. motor fuels, kerosene, &c., are obtained from liquid carbonaceous materials having an upper boiling limit above 350 DEG  C., by separating pitch, resin, &c., which would impair catalyst activity, by treatment with liquefied, normally gaseous hydrocarbons and destructively hydrogenating the pretreated material by passing it with hydrogen or a gas containing substantial amounts of free hydrogen under pressure and under splitting conditions over stationary catalysts.  Suitable hydrocarbons are propane, propane-ethane mixtures, and butane. Prior to the destructive hydrogenation, the material may be refined with sulphuric acid, aluminium chloride, bleaching earth, &c.  Destructive hydrogenation is preferably effected in the vapour phase, at a temperature of 350--550 DEG  C., preferably 380--450 DEG  C., and under a pressure of at least 20 and up to 1000 atmospheres, the amount of hydrogen being 100 up to 6000 cubic metres per ton. Suitable catalysts are metals of groups 2--8 of the periodic table, e.g. molybdenum, chromium, tungsten, vanadium, and, in particular, their oxides, sulphides and halides.  The catalyst, may be supported on carriers, e.g. active carbon active silica, alumina, de-ashed brown coal small coke or brown coal small coke pretreated with acids or acid substances.  In an example asphalt base mineral oil, from which benzine is removed by distillation, is treated with five times its volume of liquefied propane at 40--50 DEG  C., under a pressure of about 25 atmospheres and the precipitated pitchy residue is separated.  After removal of propane, the oil is heated to 410 DEG C., together with hydrogen under a pressure of 250 atmospheres in a tubular preheater and led through a reaction vessel filled with pills of tungsten disulphide.  The vapours are fractionally condensed and fractions boiling above 200 DEG  C., are re-cycled.  The product, consisting of benzine, is washed with dilute caustic soda before coming into contact with air.  Specifications 389,113 and 410,103 are referred to.  The Specification as open to inspection under Sect. 91 refers to purification of the initial material before separation and also to purification by treatment with hydrogen, preferably in the presence of catalysts having an hydrogenating action below 300 DEG C.; also continuous operation by continuously introducing fresh carbonaceous material and the use of several reaction vessels, and the use of water gas or mixtures of hydrogen with nitrogen, carbon dioxide, sulphuretted hydrogen or methane.  A second example is also given in which a crude asphalt base oil is freed from benzine by distillation, and constituents boiling above 200 DEG  C., are treated with liquefied propane at 80 DEG  C., and worked up as before.  This subject-matter does not appear in the Specification as accepted.
Patent GB-864343-A (GB)
Title: Improvements in luminescent materials
Inventor: WELLS ROBERT STIRLING
IPC: C09K11/59
Filed: 1956-07-06
Abstract: 864,343. Luminescent materials. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 5, 1957 [July 6, 1956], No. 21053/56. Class 39(1). A material luminescing red under excitation by U.V. radiations or cathode rays comprises a solid solution of cadmium silicate and strontium silicate activated with manganese, the molecular ratio of cadmium oxide to strontium oxide in the silicate being not more than 99:1 and not less than 0.5 : 1, and the atomic amount of manganese present lying between 0.125 and 0.0125, or between 0.005 and 0.08, for each molecule of (cadmium oxide and strontium oxide). The molecular amount of silica present lies between 0.9 and 1.4, preferably between 1.0 and 1.2; for each molecule of (cadmium oxide and strontium oxide). For excitation by U.V. radiations the molecular ratio of cadmium oxide to strontium oxide should not be more than 39:1 and not less than 2:1. Ratios of 3:1 and 1:1 are also referred to. The atomic amount of manganese should preferably be between 0.05 and 0.06 for each molecule of (cadmium oxide and strontium oxide). For excitation by cathode rays the ratio of strontium oxide to cadmium oxide should be lower than 1:1'.. The materials can be made by mixing CaCO 3 , SrCO 3  and SiO 2  with an aqueous solution of MnCl 2 .4H 2 O, firing at 900‹C for 1¢ hours in a closed quartz crucible in an atmosphere of air, grinding and re-firing at 900‹C, for 2 hours The grinding and re-firing can be repeated. Some  or all of the SrCO 3  can be replaced by the equivalent amount of either SrCl 2 .6H 2 O or SrF 2  and the MnCl 2 .4H 2 O can be replaced by the equivalent amount of MnCO 3  or other Mn compound. In these cases the mixture can be fired in asilica crucible in an electric muffle furnace in an air atmosphere at 950‹C. for 1¢ hours, followed by firings at 950‹C. for 3 and 2¢ hours respectively, or by a firing at 1025‹C. for 2 hours an firing at 1050‹C. for 2 hours.
Patent GB-684878-A (GB)
Title: Improvements in production of gas-expanded organic plastics
IPC: C08J9/06
Filed: 1950-08-25
Abstract: Gas expanded organic plastic material is obtained by adding a blowing agent comprising a physical mixture of urea and oxalic acid in which the urea is in excess with an expandable organoplastic material and heating to decompose the blowing agent and expand the plastic.  The plastic material may be a synthetic rubber such as polychloroprene, a copolymer of butadiene with styrene or acrylonitrile, or of isobutylene with butadiene or isoprene; an alkyd resin, a urea formaldehyde resin, a polymer of acrylonitrile, styrene, or vinyl chloride, a copolymer of vinyl chloride and vinyl acetate, or an ether or the acetate of cellulose.  Temperatures of 160-200 DEG  C. are normally employed to decompose the blowing agent and expand the plastic.ALSO:Gas expanded organic plastic material such as natural rubber is obtained by adding a blowing agent comprising a physical mixture of urea and oxalic acid in which the urea is in excess with an expandable organoplastic material and heating to decompose the blowing agent and expand the plastic.  In examples, the effect of various quantities of the blowing agent under certain conditions is illustrated on mixes consisting of either brown cr<\>zepe rubber, whiting, zinc oxide, light oil, stearic acid, acetone diphenylamine condensate, sulphur, and tetramethyl thiuramdisulphide or polyvinyl chloride, tricresyl phosphate and calcium stearate.  Temperatures of 160-200 DEG  C. are normally employed to decompose the blowing agent and expand the plastic.
Patent GB-1008240-A (GB)
Title: Centre of gravity apparatus
Inventor: BOUNDY JOHN HAROLD
IPC: G01M1/12
Filed: 1964-05-21
Abstract: 1,008,240. Determining centres of gravity. NORTH AMERICAN AVIATION Inc. May 21,1964, No. 21120/64. Heading G1X. Apparatus for graphically locating perpendiculars through the centre of gravity of an object, e.g. a missile 60, as contained in a vertical plane with the object in different orientations, comprises a curved beam 11 carried by a support 14, the beam being freely slidable in the support in the said vertical plane on a carriage 34 pivotally mounted on the support 14, a movable weight assembly locatable at different positions on the beam e.g. by pins 28, 29, first and second reference points 21, 22 fixedly located with respect to the beam 11, and a vertical reference pendulum member 45 suspended from the support 14 provided to allow the reference points 21, 22 and the centre of gravity of the missile to be aligned with the vertical for each position of the weight assembly 16. In use, with the assembly 16 in the position shown in Fig. 14, and with the missile suspended from the beam 11, the apparatus is arranged so that the point 22 is aligned with a vertical slit 46 in the member 45. A reference card 57 is located on the missile by pins 59, and a line is drawn on this card using a slit 47 in the member 45. The weight assembly 16 is moved to the position shown in Fig. 17 and the reference point 21 aligned with the slit 46. A further line is drawn on the card 57 using the slit 47, and the intersection of the two lines on the card 57 will indicate the position of the centre of gravity of the missile in a vertical plane.
Patent GB-331112-A (GB)
Title: Instrument for indicating or recording the specific gravity of gases
IPC: G01N9/32
Filed: 1929-07-10
Abstract: 331,112. Wilson, W. July 10, 1929. Specific-gravity estimating-apparatus. -Apparatus for measuring the specificgravity of gases comprises a vertically movable balanced bell to which gas is admitted at a known rate and at a fixed pressure, the gas outlet from the bell being constituted by a variable orifice controlled by a needle rising and falling with the bell, and measuring means operated by the movement of the bell. The bell 2 is partially immersed in water in a tank 1 and is suspended from one arm 4 of a balance beam fulcrummed at 6. A vessel 8 connected by a tube 9 to the tank 1 and having a tray 10 which can be loaded with shot &c. 11 is suspended from the arm 5 of the beam, the crosssectional area of this vessel being equal to that of the metallic lateral wall of the bell 2 so as to compensate for variations of the weight of the bell with changes of immersion and to ensure constancy of gas pressure within the bell in all position of the bell. Gas enters the bell through a pipe 12 and leaves through an orifice 15 in a pipe 13, the size of the orifice being varied by a tapered needle 16 carried bv the bell. An extension 4<1> of the arm 4 carries a pointer 17 or a recording pen, &c.
Patent GB-640762-A (GB)
Title: Improvements in rolling mill control systems
IPC: C12H6/04
Filed: 1948-08-11
Abstract: 640,762. Control of rolling mills. COMPAGNIE GENERALE DU DURALUMIN ET DU CUIVRE. Aug. 11, 1948, No. 21204. Convention date, Aug. 20, 1947. [Class 40 (i)] [Also in Group XXII] The inching motors of a rolling mill are controlled by the difference between a potential proportional to actual roller spacing, and a potential proportional to the required gap. Commutator type potentiometers 2, 10 controlled by the roller spacing and the required gap setting respectively have their tapping points connected through polarized relays 5, 6, which control the inching motor contactors 7, 8 to drive the rollers and hence potentiometer 2 into correspondence with 10. The setting potentiometer 10 is servodriven by a motor 9 controlled by a follow-up switch comprising a pair of contact brushes adapted to be displaced by the required gap setting and bridged by a drum 14 driven by the motor, until an insulating part 25 reaches the brushes. Alternatively a number of preset potentiometers corresponding to the number of gap adjustments are consecutively connected in circuit by cam-operated switches, Fig. 5 (not shown), or the potentiometers may be replaced by induction regulators.
Patent GB-516209-A (GB)
Title: An improved device for use in darning or repairing fabrics
IPC: D04B17/00
Filed: 1938-07-19
Abstract: 516209 Darning CHESSTOK E 19 July 1938 21380 [Class 112] A weft-shedding device is secured to a darning mushroom 16 by a stout rubber band. The device comprises a rank of broad-hooked rods 7 cranked at 9 and engaged between the slots of a comb 11. The weft threads are secured at one side of the hole to be repaired and passed around the broad hooks. Shedding is effected by pushing the comb back and forth.
Patent GB-640726-A (GB)
Title: Improvements in textile spinning machines
IPC: D01H1/00
Filed: 1947-08-06
Abstract: 640,726. Textile spinning-machines. HAM, W. H. Aug. 6, 1947, No. 21405. Convention date, July 19, 1946. [Class 120(ii)] A hand-fed spinning-machine comprises a flyer rotatably mounted on a horizontal tubular spindle and a bobbin spindle rotatably carried by a reciprocating bobbin shaft and rotatable solely by the pull of the spun thread. In one embodiment, a strand of fibres passes through a tubular spindle 19 to one of a series of equallyspaced openings 26 in an inwardly extending rim flange 25 of a conical flyer 24 and then to a bobbin held by spring members on a spindle 62. The spindle 62 is mounted in bearings in a tubular shaft 32, supported by radially disposed wheels 33 for reciprocatory movement under the influence of a cam 51, driven from the spindle 19 through a belt 39 and a reduction gear unit 42. A drag arrangement is located at the extreme rear end of the spindle 62 and comprises a band member 67 dependent from a pulley 63 and having either weights 68 at its lower end, or a receptacle for weights. Weights may be added to the drag band as the size of the bobbin increases. The spindle 19 may be driven by an electric motor 20 through a belt 22, or a motor may be directly coupled to it. In a modification, the cam 51 is driven by a separate motor synchronized with a motor driving the spindle 19. The speed of the motor, or motors, is preferably controlled by a foot-operated rheostat or variable resistance control unit.
Patent GB-269047-A (GB)
Title: Improvements in operating mechanism for vehicle brakes
IPC: B60T11/06
Filed: 1926-08-31
Abstract: 269,047. Mead, F. W. Aug. 31, 1926. Force - transmitting mechanism; compensatting for wear. -Relates to brake mechanism in which four brakes on a vehicle are simultaneously actuated by a single control member and are arranged in pairs, each pair being connected together by a cable formed with a bight extending around a roller or the like, and both cables being operated simultaneously by the control member. The bights in the cables are engaged by an adjustment device which is independent of the operating mechanism and floats freely in its direction of adjustment. The cables 11, 16 each connected at its ends to the brakes on the front and rear wheels at one side of the vehicle, are passed around pulleys 9, 10, 13, 14 on arms 7, 8 at the ends of a rotary shaft 2 connected by a link 30 to the brake lever or pedal. The bights 12, 15 thus formed pass around rollers 17 carried by bxackets 18 mounted to slide along the shaft 2. The brackets carry right- and left-hand threaded blocks 20 mounted on a correspondingly threaded rod 21 having a central portion formed with a keyway 22 so that the rod has free axial movement but is angularly keyed to a bevel pinion 23 supported in a fixed bracket 24. The pinion 23 is engaged by a pinion 27 operated by a knob 28 within convenient reach of the driver.
Patent GB-856762-A (GB)
Title: Improvements in and relating to ceramic articles
IPC: C04B41/50
Filed: 1958-07-04
Abstract: A compressed surface layer in a ceramic article is obtained by impregnating an outer layer of unburnt ceramic with a salt solution which on subsequent burning reacts with the ceramic to give the outer layer a lower coefficient of thermal expansion than that of the remaining ceramic.  The salt e.g. potassium or magnesium chloride, may be precipitated into the ceramic. Impregnation may be before or after any glazing.  Specification 697,474 is referred to.
Patent GB-243828-A (GB)
Title: Improvements in or relating to portable electric lamps
IPC: F21V21/38
Filed: 1924-09-11
Abstract: 243,828. Trafford, A. Sept. 11 1924. Vehicle lamps; lanterns, glazing; mounting electric lamps in lanterns.-In an electric spotlight for motor-vehicles having, within its casing 6. a drum 11 adapted to receive an extensible electric cable 12 enabling the lamp to be detached from its support 33 for use in other positions, the lampholder 28 is provided with a flange 28a engaging a tubular part 11<a> of the drum and an extension 27 fitting slidably in a tubular spindle 15 and having a reduced end 27a, preferably square in cross-section, which passes through a bush 15<a>. The end 27a is formed with mutilated sections of screw-threads for receiving 4a nut 30, by which, in conjunction with a spring 27, the lamp 8 is focused. The lens 9 is secured in the end of the casing 6 by a flanged ring 6a, preferably in the manner described in Specification 179,377, [Class 122 (iii), Steam-engines, Kinds &c.].
Patent GB-999297-A (GB)
Title: Improvements in or relating to devices for feeding sheet-like members from storage magazines
IPC: B21D43/24
Filed: 1962-06-04
Abstract: 999,297. Discharging sheets from a magazine. E. SCHWARZ. June 4, 1962 [June 5, 19611, No. 21479/62. Heading B8S. Sheets 12 are contained in magazine 11 and are discharged rightwards from the bottom thereof by two pivoted pushers 13 carried by a reciprocating slide 10. The pushers 13 carry the lowermost sheet past stripper 27 which, as the slide returns leftwards, engages and retains the sheet. On the next reciprocation of slide 10 the sheet is engaged by the end of the slide and pushed to its operating station, the next sheet being pushed rightwards by the pushers 13 and the cycle continuing. Each sheet is pushed beneath an adjustable doubletapered gate 22 and slide 10 is formed with groove 19 to accommodate the end stripper 27. In this way slide 10 conveys each sheet a greater distance than normal.