baber/WOPTO huggingface dataset:
Patent GB-201914-A (GB)
Title: Improvements in articles requiring a high resistibility against corrosion by ammonium-chloride solutions
Filed: 1923-07-31
Abstract: 201,914. Krupp Akt.-Ges., F. Aug. 2, 1922, [Convention date]. Alloys.-Articles, such as vessels, pipes, and machinery parts, requiring a high resistibility against corrosion by ammonium chloride solutions, are made of a steel alloy containing 18-24 per cent of chromium, 7-20 per cent of nickel, 2-6 per cent of copper and 0.1-0.4 per cent of carbon. Specifications 127,343 and 151,981 are referred to.
Patent GB-862840-A (GB)
Title: Improved semi-conductor devices
IPC: H01L27/06
Filed: 1957-06-21
Abstract: 862,840. Semi-conductor amplifying circuits. MINNEAPOLIS-HONEYWELL REGULATOR CO. June 21, 1957 [June 28, 1956], No. 19614/57. Class 40(6) [Also in Group XXXVI] A two stage semi-conductor amplifier is characterized in that it comprises two tetrode junction transistors disposed upon one single crystalline wafer of semi-conductor material. As shown in Fig. 2 the base member 11 has three ohmic connections 12, 13, 14 separated by the two annular emitters 15 and 16 situated opposite the two annular collectors 17 and 18. The input is between base connection 12 and earth and the emitter 15 is connected to base connection 14. A battery between base connections 13 and earth produce a potential gradient across the base regions of each stage and the collectors 17 and 18 are connected together and thence via a load resistor 29 over battery 28 to earth. Specification 862,839 is referred to.
Patent GB-147675-A (GB)
Title: Improvements in or relating to keyboard musical instruments played by means of perforated paper rolls or the like
Filed: 1920-07-08
Abstract: 147,675. Savoye, R., and Dryvers, U. March 18, 1914, [Convention date]. Organs, manual, pedal, and coupler actions for; reed organs combined with pianofortes.-Relates to an automatic keyboard musical instrument in which the accent-perforation in the tune-sheet is utilized to play the note to be accented in a separate department. As applied to a two-manual organ, as shown in Fig. 1, the key-levers a, b actuate the operating- rods A', B' of the valves admitting wind to the sounding-pipes, by means of hooks a<1>, b<1> pivoted on the rods A<1>, B<1> and thrown into engagement with the key-levers against the action of springs a<4>, b<4> by bars D, E carried by bell-cranks d, e operated by pneumatics D<1>, E<1> controlled by slides g, h. In the position of the slides shown in the Figure, all the notes are played, by an ordinary automatic action K, on the great organ, the pipe D<5> being open to the atmosphere at f<4> and suction at the pipe d<3> raising the diaphragm D<4> and valve D<6>, causing the pneumatic D<1> to collapse and operate the bar D. The bar E is operated to play a note to be accented, on the swell organ, which is coupled to great at C, when the accent-perforation uncovers the accent-duct I connected to the pipe E<5>, allowing suction at e<3> to collapse the pneumatic E<1>. The connexions of the pipes D<5>, E' to atmosphere and accentduct are reversed, to play all notes on the swell organ and the note to be accented on the great organ, by drawing-out the slide h. All notes can be played on both the great and the swell organ by drawing-out the slide g, putting both the pipes D<5>, E<5> into communication with the atmosphere through ports g<4>, g<3>. In the application of the invention to a combined grand piano and " orpheal," the latter, comprising a set of vibrating reeds in a resonator variable for imitating other instruments and having its keyboard arranged above that of the niano, bars similar to the bar D, operated from the accent-perforation, rotate hooks which couple the key-levers of the orpheal to those of the piano, and it may be arranged that the note struck on the orpheal is not struck on the piano. It is stated that the engagement of the hooks may be effected by means of electro-magnets. In the Specification as open to inspection under Sect. 91 (3) (a) it is stated that the invention is also applicable to combinations such as two pianofortes, piano and harmonium, or organ and harmonium. This subject-matter does not appear in the Specification as accepted.
Patent GB-570905-A (GB)
Title: Anti strain and vibration; bolts and screws
IPC: F16B39/36
Filed: 1943-11-25
Abstract: 570,905. Locking bolts and set screws. ROWING, B. C. Nov. 25, 1943, Nos. 19698/43 and 57/44. [Class 89 (i)] Bolts and set screws are locked by means of conical surfaces on the head which is cross cut to provide a resilient action. Separate cross .cut conical members may be used for application to existing bolts and set screws. The head C is curved for engagement with a conical washer G or with a countersink J formed directly in the part A to be bolted on. A number of cross cuts F divide the head into three or more resilient sections and extend throughout the conical portion and if desired into the shank. An axial hole B in the head receives a compressible plug D which is a push or drive fit. The plug may be of fibre and solid, hollow, or reinforced with a metal core.
Patent GB-965362-A (GB)
Title: Improvements in, or relating to, photographic enlargers
IPC: G03B27/58
Filed: 1962-05-23
Abstract: 965, 362. Photographic enlargers. T. F. BLUMFIELD. May 23, 1963 [May 23, 1962], No. 19778/62. Heading G2A. In an enlarger having a masking frame movable on a supporting platform, the frame comprising a base and a hinged upper part, the said frame is anchored on the platform by at least one arm, of which one end is connected to the frame by a swivel joint and the other end is releasably secured to a fixed part of the enlarger. In the form shown, the light source and objective lens (not shown) are carried on a vertical sleeve 3 bolted to a shelf-like extension 2 of a platform 1. Resting on the platform is the masking frame 4, comprising a base 5 and an upper part 6 hinged to the base at 7. On adjacent arms of part 6 are two adjustable slides 10 carrying scales 9. In using the enlarger, the frame is set at a predetermined position on the platform, the top hinged upwards, a sheet of sensitized paper placed in position, and then clamped there by bringing the top down again. The frame has two spherical-headed studs fixed to its base, and each stud fits into a similarly shaped socket at the end of a plastic link member 11. The other end of each link member is tapped, and into each screws the threaded end of a cranked rod 12, locked by a wing nut 13. Each rod 12 passes through a groove in a plate 17 which rests on a disc 15 fixed on a pillar 14 projecting from the shelf 2. Plate 17 can be clamped firmly against disc 15 by a threaded bolt 16, thus gripping rod 12 securely, and hence holding the frame 4 firmly against movement. The frame can be adjusted to any position on the platform by slackening the bolts 16 so that the rods 12 slide freely, after which they are tightened up again to hold the frame securely in the selected position. The hinge can thus be swung up and down without disturbing the position of the frame.
Patent GB-583282-A (GB)
Title: Improvements relating to the delivery of sponge cake, and like webs from ovens for further treatment
IPC: A21C15/00
Filed: 1944-10-13
Abstract: 583,282. Coating &c. sponge cakes. DUMBLETON, C., and BAKER PERKINS, Ltd. Oct. 13, 1944, No. 19802. [Class 28 (i)] A web 8 of sponge cake is received from an oven conveyer 1 on to the upward incline of an endless conveyer 2 which has an overhead run 2a to provide head room underneath for operatives to work on the reverse side of the sponge web when delivered from the end 6 on to the further conveyer 9, arranged at convenient bench height. A scraper frees the baked sponge from the conveyor 1. An inclined board or slideway 10 is provided to direct the sponge web 8 on to the conveyor 9 bottom upermost. The operator may spread filling material on the web for making swiss roll or sandwich or may cut it up or an automatic spreader and guillotine may be provided for this purpose. The conveyers 2 and 9 may be independently driven but synchronised with the other conveyer or they may be driven by direct gearing from the other conveyer. The conveyer 2 allows time for the sponge to cool. Specifications 276,061, [Class 28 (i)], and 363,713 are referred to.
Patent GB-1134078-A (GB)
Title: Frequency synthesizer
IPC: H03B21/04
Filed: 1967-04-28
Abstract: 1,134,078. Frequency synthesizers; automatic frequency control systems. MONSANTO CO. 28 April, 1967 [29 April, 1966], No. 19827/67. Headings H3A and H3F. A frequency synthesizer comprises a reference frequency source which also provides a number of auxiliary reference signals, this number being smaller than radix of the number system being used, and a plurality of cascaded digit selecting stages, each of which receives as inputs the auxiliary signals and the output of the preceding stage (or the reference frequency in the case of the first stage) and provides an output at a frequency one digit of which corresponds to a digit in the required output frequency. Generating. reference frequencies, Fig. 2. The output of a crystal oscillator 16 operating at 1 Mc/s. is multiplied by 2 in unit 20 to provide a 2 Mc/s. reference frequency output; this frequency is multiplied by 10 in unit 27 to give a 20 Mc/s. output, and by 3 in unit 78 to give an auxiliary reference frequency output of 6 Mc/s. on line 80. The output of the oscillator is fed to divider 84 providing a 200 kc./s. output which is fed to a single sideband modulator 82 together with the 6 Mc/s. signal from multiplier 78 to derive a frequency of 6À2 Mc/s.; this frequency is purified by using it on a reference frequency to control an oscillator 88 in an automatic phase control loop. Frequencies of 6À1 and 6À3 Mc/s. are derived by combining the 6À2 Mc/s. signal in a modulator 92 with a 100 kc./s. signal from divider 94, these signals being purified as before. Frequency synthesis, Fig. 3. The drawing shows three stages (out of seven) of a decimal system. In the first stage the 2 Mc/s. reference frequency is combined in mixer 52a with a selected one of the four auxiliary frequencies (6À0-6À3 Mc/s.) and the output is filtered, divided in frequency by two, and fed to a second mixer 54a where it is combined with a selected one of the four auxiliary frequencies and fed to a frequency divider 58a dividing by 5. The output is a frequency between 2À00 Mc/s. and 2À09 Mc/s. according to the least significant digit of the required output which is set by a knob 32a controlling movable contacts 48a and 50a. The succeeding five stages are similar and add the next five digits required. The first part of the final stage is similar to that of the preceding stages, but the second part comprises a mixer 62 fed with twice a second auxiliary frequency through a frequency multiplier; the output of this mixer is fed to a further mixer 66 where a 20 Mc/s. signal is subtracted from it to give the final output signal. In a modified arrangement, Fig. 4 (not shown), each stage is similar to the seventh decade of Fig. 3 and comprises two mixers fed respectively with selected auxiliary signals direct and through a frequency doubler; the output of the second mixer is divided by ten to provide the output of the stage.
Patent GB-1299479-A (GB)
Title: Process for the manufacture of nitrous oxide
IPC: C01B21/22
Filed: 1970-04-24
Abstract: 1299479 Nitrous oxide FARBWERKE HOECHST AG 24 April 1970 [25 April 1969] 19834/70 Heading C1A Nitrous oxide is produced by decomposing ammonium nitrate in an aqueous, chloride ioncontaining nitric acid solution at about 100‹ to 160‹ C., the ammonium nitrate being formed in situ from ammonia and nitric acid, an atmosphere of ammonia being maintained above the solution. Hydrochloric acid or ammonium chloride may be used to supply the chloride ions. A catalyst, such as Mn, Cu, Pb, Bi, Co or Ni, in the form of a salt may be used.
Patent GB-355883-A (GB)
Title: An electric coupling combined with a variable electric resistance
IPC: H01C10/32
Filed: 1930-06-30
Abstract: 355,883. Plug couplings. ROCHAT, H., 37, Rue Ph. Plantamour, Geneva, Switzerland. June 30, 1930, No. 19836. Convention date, July 1, 1929. [Class 38 (i).] A variable resistance is incorporated in a plug coupling to adapt it for various voltage or current conditions. Resistance wire is wound on a mica strip 25 in two semi-circular sections each tapped at intervals to studs 4b, 10b, the end of each section being connected to a contact 4, 10. The whole is rotatably mounted on the body 14 of the plug, the contacts 4, 10 engaging continuous segments 3, 11, and one pair of the studs 4b, 10b engages contacts 4a, 10a. The pins 1, 2 are connected, one directly and the other through an indicating lamp 7 with shunt resistance, to the contacts 4a, 10a. As the resistance carrier is turned the amount of resistance in the circuit is varied, a shield 29 having a window that moves over numerals on a glass screen 37 illuminated by the lamp 7. A hand-released catch on the body 14 engages notches in the resistance carrier in positions corresponding with the engagement of the studs 4a, 4b, 10a, 10b.
Patent GB-1316038-A (GB)
Title: Fluid filter devices
IPC: B01D35/027
Filed: 1971-06-10
Abstract: 1316038 Filter PARKER HANNIFIN CORP 10 June 1971 [16 July 1970] 19976/71 Headings B1D and B2J A filter for removing solids from fluids comprises an elongated tubular housing 22 having an inlet 44 at one end and a lateral outlet 46 the housing being mounted in a reservoir 10. The housing carries a main outward flow tubular filter element 88 and a by-pass filter element 124. The top end of the housing is closed by a cap 30 threadably carried on a tubular rod 76 which extends down centre of the housing and which carries a lateral portion 78 at its other end. This lateral portion is removably engageable in two notches in the housing (Figs. 2 and 3, not shown) to prevent relative movement of the rod and housing, the lateral portion being biased into the notches by spring 80. Cap 30 is locked in place by threaded handle 120, tightening of which both locks the lateral portion into the notches and also seals the cap against the housing. By-pass valve 126 is biased into the closed position by spring 136. Under a predetermined pressure differential, however, it will move upwards to allow fluid communication between the interior of the main filter element 88 and bypass filter element 124. When the by-pass valve is in the open position, this is shown by indicator means 122. The rod 76 carries a number of magnets 104.
Patent GB-972906-A (GB)
Title: Cantilever rotary reclaimer
IPC: E02F3/20
Filed: 1963-05-20
Abstract: 972,906. Reclaiming material from piles. HEWITT-ROBINS INTERNATIONAL S.A. May 20, 1963 [May 29, 1962], No. 19990/63. Heading B8E. [Also in Division E1] In a bucket wheel digger a bucket wheel 60 and a harrow 86 pivotally mounted at 71 on a vertically swingable, bucket wheel-supporting boom 56 are so associated by swingable linkage 82 and fixed structure 62 of the digger that the harrow maintains a selected inclination to the horizontal during vertical swinging of the boom. The harrow may involve a reciprocable tine or toothed endless belt respectively supported from or about a girder beam.
Patent GB-204170-A (GB)
Title: A new or improved paper clip or holder
IPC: A47K10/42
Filed: 1922-07-21
Abstract: 204,170. Skinner, G. D. July 21, 1922. Claw files; clamping-devices.-A holder for toilet papers &c. comprises a spring strip 4 secured by screws 2 to a base-board 1, and having a spike 3a, preferably stamped up from the metal of the clamp, to pass through the papers 5 and enter a hole 4a in the baseboard. The end 6 of the clamp forms a handle, and a keyhole slot 7 enables the device to be hung from a nail &c. The papers may be pierced at one corner, in which case the clamp is correspondingly mounted at one corner of the base-board.
Patent GB-1187697-A (GB)
Title: Fluid Transfer Device such as a Hypodermic Syringe
Inventor: DEUSCHLE FRITZ
IPC: A61B5/15
Filed: 1968-04-26
Abstract: 1,187,697. Syringe &c. adaptor. BRUNSWICK CORP. 26 April, 1968 [28 April, 1967], No. 20075/68. Heading A5R. An adaptor, for interpolation between a hypodermic needle and a syringe or the like, which may be left on the needle to seal it whilst the syringe is removed or replaced, comprises a tubular body 21, e.g. of a rigid resin with a bore 22, 23, 24 and a transverse wall 27 from which projects a forward connector 28 with a passage 29 adapted to engage the hub 16 of a hypodermic needle. Behind the wall 27 is fitted a resilient annular element 30 with an axial passage 31 normally closed by a closing element 32 having a diametric slit 33 biassed to close the passage by the resiliency of the material of which the element 30 is made, the element 30 being retained in the adaptor by a plurality of fingers 34 formed on the rear of the body 21. When installed on the end 15 of the syringe, the slit is forced open by the syringe end and a free passage from the syringe to the needle is produced, the passage being closed when the syringe is removed. The attachment of the adapter to a different type of syringe barrel is illustrated in Figs. 5-7 (not shown).
Patent GB-1259701-A (GB)
Title: Grass-collecting device for attachment to lawn edge trimming shears
Inventor: HARRISON ANNIE
IPC: A01G3/06
Filed: 1969-04-19
Abstract: 1,259,701. Lawn-edging shears. A. HARRISON, and G. A. HARRISON, 24 June, 1970 [19 April, 1969], No. 20115/69. Heading B4B. A grass-collecting device for lawn-edge trimming shears comprises a sheet metal tray or trough adapted to be secured to the shears to provide an open-topped receptacle alongside the lower shear blade to collect the grass cuttings, the tray or trough being formed by a plate portion of a generally rectangular elongate form having one longitudinal side edge adapted to be applied, in use, against the lower shear blade so that the plate portion extends laterally from the lower shear and forms an inclined longitudinal retaining wall of the receptacle sloping upwardly and outwardly in a direction transverse to the lower shear blade, opposite ends of the plate portion terminating in integral retarding flanges; the flange forming the end wall portion which fits adjacent the trailing end of the lower shear blade being bent up at right-angles to the plate portion whilst the flange forming the opposite end wall portion which fits adjacent the leading end of the lower shear blade being bent up at an obtuse angle to the plate portion. The tray is secured to the lower end of the handle carrying the lower blade by means of an arm which is provided with a clamp held together by screws; the clamp may be replaced by a spring-clip. The arm may be attached to the tray by screws, a series of screw holes being formed in the tray for adjustment.
Patent GB-702414-A (GB)
Title: Improvements in and relating to the construction of cable drums
IPC: B65H75/38
Filed: 1951-08-27
Abstract: 702,414. Cable drums. BUTTERLEY CO., Ltd., and WESTMORLAND, A. G. Aug. 6, 1952 [Aug. 27,1951], No. 20118/51. Class 99 (2). A drum a for an electric cable c carrying current to an electro-magnet suspended from an overhead crane has a helical groove b to accommodate the cable and is carried on trunnions e, m, one of which is hollow and extends outside the drum and carries slip rings f for supplying current to the cable on the drum. The cable passes through the hollow trunnion. The drum may be rotated through gears h, g and by a sprocket wheel i; alternatively the sprocket wheel is secured directly to one of the trunnions. A casing may cover the gears and slip rings. There may be a wheel n engageable in the groove b and rotatable on a sleeve o loose upon a shaft p parallel with the axis of the trunnions, and a wheel q secured to the sleeve and grooved to accommodate the cable, so that when the cable is paid out from or coiled onto the drum the wheel q is laterally traversed to keep the cable in the groove b; alternatively, there is a wheel laterally movable along the shaft p and having grooves which engage two convolutions of the cable simultaneously, or a drum having a plain peripheral surface and located at such a distance from the drum a that the cable can only pass between the drums when in the groove b.
Patent GB-1140512-A (GB)
Title: Improvements in air inlet means for self cleaning oven
IPC: F24C14/02
Filed: 1966-05-06
Abstract: 1,140,512. Ovens. GENERAL ELECTRIC CO. 6 May, 1966 [6 May, 1965], No. 20130/66. Heading F4W. An air inlet 50, built into the lower part of a door 13 of a self cleaning oven, comprises a series of elongated apertures 52 in a flange 29 of the outer door panel 25, a front chamber 53 extending the complete length of the door, two small communicating ducts 58 and a rear chamber 55 having outlet apertures 54 in a flange 32 on an inner panel 27. Fine mesh metal screens 60 are wedged into ducts 58 to act as flame arrestors. A woven fibreglass gasket 33 is held between inner panel 27 and inner door liner 26 to bear on the turned out flange 34 of the oven liner 12 and seal the cavity. As an additional sealing means a silicone rubber gasket 35 extends along the bottom edge of the door. The oven cavity and the door are lined with fibreglass.
Patent GB-193371-A (GB)
Title: Improvements in or relating to sleeve links
IPC: A44B5/00
Filed: 1922-07-24
Abstract: 193,371. Conord, F. Feb. 14, 1922, [Convention date]. Sleeve-links; studs. - One head of a sleevelink comprises two plates 1, 3, Figs. 1, 3, and 4, secured together in an ornamental cover plate. The plate 1 has a spring 2 which presses on the end of a tongue 4 bent out of the plate 3. The other head has a stem 6, Fig. 8, with an eye 7 which is pressed on to the tongue 4, the spring 2 being slightly depressed first.
Patent GB-374663-A (GB)
Title: A method and apparatus for machining rolls such as pilger rolls and the like
IPC: B23Q5/10
Filed: 1931-07-14
Abstract: 374,663. Machining Pilger-rolls &c. MANNESMANNRÍHREN-WERKE, 1B, Berger Ufer, D³sseldorf, Germany. July 14, 1931, No. 20248. Convention date, Jan. 29. [Classes 83 (ii) and 83 (iii).] Planing.-In a method of and apparatus for machining rolls, particularly those of Pilger rolling mills, a pair of rolls 5 mounted on parallel axes are rotated about an axis 9 extending between the rolls at right-angles to the plane containing the roll axes, the tool 13, located between the rolls, having movements radial to the axis 9, which are controlled so as to produce the desired contour on the rolls as they are fed past the tool by rotary movements about their own axes. The rolls are adjustably carried in bearings 6 on a table 2 driven by a pinion 4 geared to motor 1 and the rotary feed movement of the rolls is effected by worm gearing 8 driven from a shaft 12 through differential gearing 11 and bevel gearing 10. The tool 13 is mounted in a holder 14 carried by a head 15 which is slidable along a carriage 18 to vary the cutting radius of the tool by means of a screw 17 geared to a motor 16 which may be controlled by servo apparatus embodying a templet similar to the desired roll profile and a second reversible motor synchronized with the motor 16. The carriage 18 may be traversed by means of a toothed segment 21, carried by a shaft 22 terminating in a forked lever 23 coacting with a roller on a slide block 32 which is traversed along a pivoted arm 29 by a screw 36 driven from a motor 34 which is preferably controlled by servo apparatus designed to give the movements required for producing the inclined sides of the roll profile. The pivotal movements of the arm 29 about the axis of the motor 34 are controlled by means of a roller 31 engaging a cam drum 24 whose profile varies along its length. The drum is rotated at twice the speed of the table 2 by gearing 27, 28 to impart movement to the carriage 18 and the tool for shaping the inclined sides of the roll profile and the drum is moved axially by a lever 37 which is operated by gearing from a motor 40. Any desired inclination of the roll sides may be obtained by control of the position of the block 32 and the axial position of the drum 24.