baber/WOPTO huggingface dataset:
Patent GB-443153-A (GB)
Title: Improvements in boxes and in means for securing the closure thereof
IPC: B60T11/224
Filed: 1934-08-21
Abstract: 443,153. Key-locks ; money boxes. LUNN, J. R. P., 34, Cleveland Avenue, Darlington, and CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., Hamilton House, Victoria Embankment, London. Aug. 21, 1934, No. 24042. [Class 44] [See also Group XVII] A money box is formed in two rigid parts held together by a sliding member which is mounted on one part and is movable into and out of engagement with the other, the sliding member being locked in its engaged position by a spring in the path of movement of the member and displaceable by a key which also serves to move the sliding member. The box comprises two parts 1, 2 fitting together as shown, and a sliding strip 3, guided in a groove in a cover plate 15 on the part 2, has a hooked end 17 to engage a projection 18 on the part 1 and a keyhole slot to engage a screw 19 on that part. The plate 15 is secured by a screw 13 passing through a slot in the strip 3. The upper end of the strip is bent at 6 and is engaged by a spring 4, secured to the part 1 by the screw 19, to hold the strip in its locked position. When a key 5 is inserted through a slot 11 in the part 2 and through a hole 7 in the strip, the spring can be bent back and the strip lowered. The spring has a notch 10 in its end so disposed with respect to the hole 7 that only a key with a cranked end can effect the displacement of the spring, and the slot 11 and hole 7 are so relatively disposed that the key must have an intermediate crank as shown. The parts 2, 15 enclose two spaces 22 for coins of different diameter which are visible through holes 25, and the base 26 is sloped so that should a coin of too small a diameter have been inserted it would slip to the back and disclose its presence as a gap between two coins of correct size.
Patent GB-203892-A (GB)
Title: Improvements relating to electric switches
IPC: B60R16/00
Filed: 1922-09-05
Abstract: 203,892. Lucas, O. Sept. 5, 1922. Interlocked switches; lighting and heating systems.- A switching device, applicable to circuits cf motor vehicles, comprises the combination with a rotatable switch b, engaging a series of contacts h, of a switch blade f so connected to the dynamo field circuit that, in a certain position of the switch b, the field circuit is opened between a contact c which may form one terminal of the fuse d. When the switch b is moved from that position, it allows the contact e to engage with the contact c to close the field circuit.
Patent GB-837292-A (GB)
Title: Electron tube apparatus
Inventor: GARDNER BERNARD CLIFFORD
IPC: H01J25/24
Filed: 1956-08-03
Abstract: 837,292. Velocity-modulated tubes. VARIAN ASSOCIATES. Aug. 3, 1956, No. 24061/56. Class 39(1). A discharge device, e.g. a reflex klystron, comprises an evacuated portion including an internal cavity resonator positioned for electromagnetic interaction with the electron beam and having an iris opening in the wall thereof, an unevacuated external cavity resonator vacuum-sealed to the device so as to be coupled through the iris opening to the first cavity resonator, and a member of wave-energy permeable material vacuum-sealing the first resonator from the second, this member being vacuum-sealed within the second resonator. The central body portion 1 of the reflex klystron comprises a rectangular block of steel having a large longitudinal bore 2 located slightly offcentre therein there being a curved cut or iris opening 3 on one side of the block 1 opening into the bore 2. A cylindrical re-entrant tube 5 is secured by means of a header 4 within the bore, an accelerating grid 6 and a resonator grid 7 being secured over the ends of the tube 5. A reflector assembly, including a reflector bulb 8 a second resonator grid 22 secured over its open end and a reflector button 15, is secured in one end of the bore 2 and in the other end is secured a cathode assembly including an indirectly heated cathode button 29 and a cylindrical focusing electrode and heat shield 28. A multi-stepped waveguide adapter 32 having an opening 34 larger than the iris opening 3 is mounted over the opening 3. A window of wave-energy permeable material such as mica is secured within the adapter 32 over the opening 34. Threaded through one wall of the adapter 32 is a window-loading screw 35. Secured to the outer end of adapter 32 is a rectangular waveguide section 37 having a mounting flange 38 in which is an output opening 38<SP>1</SP>. Secured within a bore in the upper surface of the section 37 is a split-rod tuner assembly, which is described and claimed in Specification 810,237. In a modification, Fig. 4 (not shown), the body of the klystron comprises a machined block of metal in one end of which the cathode assembly is secured and to the other end of which is brazed a solid metal cylinder housing the reflector assembly. Metallic annular headers are brazed within the block to mount the second resonator grid and re-entrant tube. In place of a multi-stepped waveguide adapter a solid block of metal is brazed within a rectangular section of waveguide to reduce waveguide volume at the iris window. Specifications 790,142, 837,293 and 837,294 also are referred to.
Patent GB-153437-A (GB)
Title: Improvements in or relating to gramophones and like machines or instruments
IPC: G10K13/00
Filed: 1919-10-02
Abstract: 153,437. Marles, A. T., and Hunter, H. W. Oct. 2, 1919. Sound magnifying and directing appliances.- A phonograph with mternal horn is provided with various resonating devices. The case of the machine is divided into compartments, of which the central one h, shaped as shown, forms the horn. The side compartments g, i, are resonance chambers, the chamber i being subdivided. Communication holes l are provided with vibrating tongues m and organ pipes may be placed in the chambers. The chamber g is fitted with tuned strings p and optionally with a sound board. The central chamber is provided with a sound board which may be in two parts r, r<1> supported by rubber plates u, u. The chamber y so formed communicates with the passage w through openings z in the bearer s. The part v bears a rubber-insulated glass plate 2. The part r<1> carries a secondary sound-box as described in Specification 153,363, the diaphragm 3 being connected bv a rod 4 to a thin metal or celluloid plate 5. A curved tapering thin metal plate 12 is resiliently suspended from the table c. The curbed block 11 may be made in solid, hollow, or skeleton form. Specification 153,437 also is referred to.
Patent GB-1127065-A (GB)
Title: Improvements in and relating to electronic switching means
Inventor: BURTON GEORGE ERNEST
IPC: H02K29/08
Filed: 1964-06-10
Abstract: 1,127,065. Automatic control of speed. NATIONAL RESEARCH DEVELOPMENT CORP. Sept. 10, 1965 [June 10, 19641, No.24083/64. Heading G3R. [Also in Division H2 and H3] A load, such as a motor winding 11, is switched across a D. C. source by an oscillator comprising a saturable indicator T and arranged to pass a small average current when oscillating but to pass a larger current through the load when oscillation is inhibited by proximity of a magnet RM causing saturation of the indicator. Fig. 4 shows a motor having a permanent magnet rotor RM and four stator coils 11... 14 the direction of current in which is controlled by eight oscillating switches A +, C - (only two shown) selectively rendered conductive or non-conductive by the field of the rotor RM. Each oscillating switch comprises a transistor VT having positive feedback via a Mumeta 1 (Trade Mark) or ferrite corded transformer T and a timing circuit CR so as to form a blocking oscillator having a mark/ space ratio of 3:1000. The average current is thus so small that the circuit is considered as equivalent to a switch in its "off" condition between the supply and windings 11... 14. When, however, one of the poles of the rotor magnet RM approaches one of the toroidal transformers T, the core is saturated so that oscillation ceases and the transistor becomes continuously conductive so as to form the "on" condition of the switch. Biasing magnets PM are provided so that the switches are only turned on by an appropriate pole of the rotor magnet. The direction of rotation is reversible by reversing the polarity of the biasing magnets. Alternatively, the N and S poles of the rotor magnet may be disposed in different planes so that biasing magnets are not required. All transformers T may be bodily adjustable angularly around the rotor corresponding to a conventional brush rocker. The transistor oscillators may control switching thyristors or thyratrons. The invention is also applicable to linear motors Speed control. Direct current from a tachogenerator may be injected into biasing windings on transformer T to control the speed. Alternatively the frequency of commutation may be compared with an adjustable reference frequency to provide a control voltage in accordance with frequency difference.
Patent GB-332424-A (GB)
Title: Improvements in machines for folding paper
IPC: B65H45/14
Filed: 1929-08-07
Abstract: 332,424. Brehmer, Geb., and Kleinschmit, O. Aug. 7, 1929. Folding paper. - In a buckling-folder machine, one of each pair of cooperating folding rollers is yieldingly-mounted and guided along two divergent paths. The bearings n of the roller 2 situated opposite the mouth of the stop plate i of the buckling - folder are pressed towards the plate i by a spring r and have perpendicular plane surfaces o, p engaging similarly-arranged surfaces on the main frame so that the bearings slide along either of these divergent surfaces according as the sheet is passing between the rolls 1, 2 into the folder or is being delivered between the rolls 2, 3 to the succeeding folder.
Patent GB-839291-A (GB)
Title: Improvements relating to moulds for the production of slabs of sugar
IPC: C13B50/02
Filed: 1958-07-28
Abstract: 839,291. Casting sugar. RAFFINERIE TIRLEMONTOISE. July 28, 1958 [Nov. 21, 1957], No. 24205/58. Class 87(2). Slabs of sugarare cast between parallel plates 9 arranged in sets 8 and disposed in a circular series of compartments around a cylindrical framing which comprises end rings separated by uprights, the plates being engaged between end supports 10, 11 and the uprights being so shaped as to provide compartments into or from which the sets 8 of plates 9 and the supports 10, 11 may be radially inserted or removed. The supports 10, 11 have projections 14 which slide into corresponding grooves formed in the extremities of the uprights and each plate is provided with two tenons 18, 19 which engage in holes 20 formed in the supports 10, 11. The top and bottom edges of the plates 9 are engaged in grooves formed in the supports 10, 11. Holes corresponding to the holes 20 are formed in the end rings and as neither of these holes are completely closed by the tenons, the filling of the mould can be performed by lowering it into a vat filled with a liquid boiled mass of sugar which solidifies on cooling. The mould is surmounted by a dome presenting projecting surfaces for engagement by a lifting apparatus or for positioning in a mould-emptying machine.
Patent GB-204866-A (GB)
Title: Improvements in the production of pictures
IPC: B44F11/02
Filed: 1922-09-07
Abstract: 204,866. Atkinson, H. A. J. Sept. 7, 1922. Ornamenting.-Coloured pictures are produced by affixing butterflies' wings or parts of wings by means of adhesive to a sketch, print, photograph, &c. representing a human figure, bird, fish, or other animal. The wings may be attached directly to a base, or to an outline or silhouete cut from paper or the like, which may be secured to a base. Parts of the design may be tinted with a pigment. The adhesive employed may be gum arabic or dextrine to which a preservative, such as hexamine, is preferably added.
Patent GB-681179-A (GB)
Title: An improvement in or relating to means for cleaning card clothing
IPC: D01G15/76
Filed: 1949-09-21
Abstract: 681,179. Carding-engines. DEIRMENTZOGLON, C. A. Dec. 21, 1950 [Sept. 21, 1949], No. 24228/49. Class 120(i) Means for cleaning, card - clothed swift o: roller in a manner simu lating hand-fettling com prises a frame, supported adjacent to the surface o the swift or roller, carry ing a pivotally mounted comb which, by drive means on the frame, is reciprocable in an acurate path of predetermined length and which is so mounted that during it movement in one direction its teeth engage to a pre determined depth between those of the swift or roller and that during movement in the opposite direction it is caused to rock pivotally to a position in which its teeth ride over the surface of the teeth of the swift or roller, the speed of movement of the comb relative to the swift or roller being such as to cause the teeth of the comb to be cleaned at the commencement of each of its return or idle movements. As shown the cleaning mechanism is carried by two spaced plates c, c<SP>1</SP> (not shown) connected together by rods d and pivotally mounted on a rod b detachably supported adjacent the card-clothed swift or roller a in opentopped slots in brackets carried by the machine frame. A comb g is carried pivotally between the ends of two arms f mounted on a rod e which is reciprocated in guideways c<SP>2</SP> through a link n<SP>1</SP>, a lever n and a cam m driven by an electric motor k. The other ends of arms f are connected by a rod h engaging cam slots i so shaped that comb g moves in an acurate path over the surface of roller a. During the downward movement of the comb it is held by an adjustable stop g<SP>1</SP> so that the comb teeth engage with those of roller a. On its upward movement the comb pivots so that its teeth are removed clear of those of the roller. During the early part of the return movement of the comb, the teeth of the roller act to clean those of the comb. The cleaning device rests with a roller r bearing against the surface of roller a. Roller r is rotated by motor k so as to drive roller a at a speed appropriately lower than that of reciprocation of comb g; or roller r may be rotated intermittently so that roller a is stationary during the downward movement of comb g and is given a partial rotation during the upward movement of the comb. The device may be of the full width of roller a, or it may be narower; in the latter case after an annular portion of the card surface has been cleaned the device is moved laterally to an uncleaned portion of the surface, and so on until the full width of the roller has been cleaned.
Patent GB-1074341-A (GB)
Title: Film projector
IPC: G03B19/18
Filed: 1964-06-11
Abstract: 1,074,341. Optical projection apparatus. BELL & HOWELL CO. June 11, 1964 [June 11, 1963], No. 24259/64. Heading G2J. In a film-strip or slide projector, loose film-strips or loaded cartridges (74), Fig. 2 (not shown), are received by a magazine comprising a portion (69) which is fixed to the projector housing, and a cover (71) hinged at (72), the film being driven by main sprocket (79) and an auxiliary spring-loaded sprocket (80) which engages the film actually inside the magazine or cartridge, the film passing vertically down between diagonal guides (81, 82) to the film gate passage (137). Plastics spring arms (130) keep the film coiled and engaging sprocket (80). The film gate is defined by two spring- biased glass plates (143) within plates (138, 139) and is swung back to the broken line position to permit the use of framing aperture (28) for slide projection. The film take-up unit (143) is pivoted at (163) to permit this gate movement. Slide transparencies in a carrier are manually fed horizontally in trackway (29) past aperture (28). Vertically downward slide feeding is possible through track (178). The film-strip is manually advanced by rotation of knob 94 against a ball detent, Fig. 1, on the shaft 87 of sprocket (79), sprocket (80) being driven in the opposite direction. Power drive is provided by a reversible electric motor in unit 199, Fig. 1, whose shaft (204), Fig. 5 (not shown), drives worm (208) through dog clutch (207), whereby Geneva movement (209), (213) rotates sprocket shaft (87) incrementally. The projection lens is manually focused by means of knob 45 and a pinion (48), Fig. 3 (not shown), which engages annular teeth (49) in the lens tube (41). Power-driven focusing is provided by shifting worm clutch (207) into engagement with focusing drive worm (232) which rotates focusing gear (240) through intermediate gears and a friction slip clutch. Gear (240) engages the teeth (49). Cooling is by means of centrifugal fan 34, Fig. 1, driven by motor 35, which sucks air over lamp 23 and exhausts it through opening 40. Remote control of the projector is possible, and the film drive may be automatically run by a cam-operated switch (252), Fig. 3 adjacent the Geneva movement.
Patent GB-225323-A (GB)
Title: Improvements in or relating to rotary tables for icing bakers' or confectioners' goods
IPC: A23G3/28
Filed: 1923-09-29
Abstract: 225,323. Andrews, S. T. G. Sept. 29, 1923. Coating confectioners' goods.-An icing-table for confectioners' goods is provided with a ball or roller anti-friction bearing. In Fig. 1, members 1, 2 are connected by a bolt 8 and nuts 9, the bolt head and nuts being housed in recesses 3, 4, closed by plugs 12, 13 which may hold spirit levels, preferably circular. The members 1, 2 are grooved to receive balls 7, with or without a cage, grooves 35 may be provided to prevent entry of undesirable matter and are assisted by a cord, rubber or leather band 34. The members 1, 2 are of different areas whereby cakes of different sizes may be accommodated by inverting the device. In Fig. 3, the table 14 is carried by balls 15 on a pin 16 which is pivoted to a quadrant 19 on which it is locked in the desired position either by a bolt 22 passing through one of the holes 20 or, in a modification. by a spring-pressed detent engaging one of the notches 21. The device may be mounted on a tripod, the legs of which are adjusted to incline the table, and are secured by passing a band around abutments on the legs..A slidable locking-pin, engageable with recesses in the table, or a brake, may be provided. Auxiliary discs may be attached to the table to accommodate large cakes which are clipped thereon. The table or auxiliary discs may be marked with concentric rings to assist in positioning the cake. Specification 13564/10, [Class 52 (v), Window, stair, and like furniture &c.], is referred to.
Patent GB-789883-A (GB)
Title: High speed aerofoil
Inventor: DAVIDSON IVOR MACAULAY
IPC: B64C21/10
Filed: 1954-08-20
Abstract: 789,883. Turbine and compressor blades. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Aug. 11, 1955 [Aug. 20, 1954], No. 24360/54. Classes 110 (1) and 110 (3). [Also in Group XXXIII] An aerofoil designed for use in a fluid stream flowing at a speed of the order of the speed of sound or above, for example a turbine or compressor blade, has a sharp leading edge formed with serrations. The serrations may be in the form of isosceles triangles having a base angle of 60 degrees, as in the compressor blade shown in the Figures. The depth D and the pitch P of the serrations are small compared with the aerofoil chord, for example they may be of the order of 1 to 5 per cent of the aerofoil chord. The pitch and the depth of the serrations may either be constant or vary along the length of the aerofoil. The leading edge may be formed with two superimposed sets of serrations of different depth and pitch. The object of the invention is to prevent boundary layer separation which takes place when a supersonic aerofoil having a leading edge of knife-edge form or of very small radius compared with the aerofoil chord, is operated at an angle of, say, more than 4 degrees from the design incidence. Each tooth 3 of the serrations constitutes a small delta wing which gives rise to a pair of oppositely rotating trailing vortices as indicated at 4 which extend rearwardly over the surface of the blade. The serrations may be cut in the material of the blade itself or they may be formed in a flat plate 5 set into the leading edge of the blade 1 as shown in Fig. 4. The serrations may alternatively be rectangular, trapezoidal, semi-circular or sinusoidal in form. A blade of bi-convex section with a small thickness compared with its chord and with sharp leading and trailing edges is shown in Specification 615,219.
Patent GB-918010-A (GB)
Title: Improvements in or relating to power transmitting mechanisms
IPC: F16H37/08
Filed: 1961-07-06
Abstract: 918,010. Change-speed gear. FORD MOTOR CO. Ltd. July 6, 1961 [Aug. 8, 1960], No. 24443/61. Class 80 (2). A four-speed and reverse change-speed gear, particularly for a vehicle having the engine mounted adjacent the driving axle, comprises an input shaft 10 and a concentric output sleeve shaft 12 carrying a bevel pinion 24 meshing with the ring gear of a differential on the axle shaft 64, with constant-mesh countershaft gears operated by friction-cone synchromesh clutches 86, 126 on the main and countershaft, respectively. The low-speed countershaft pinion 100 may be moved axially to the right to engage a reverse idler pinion meshing with a pinion 120 on the main shaft. First and second gears are engaged by moving clutch 126 to the right and left, respectively, and third and fourth gears by similar movements of clutch 86, the latter movement effecting direct drive between shafts 10, 12. Gear selection is effected by axial movement of shift rails 144, 146, 148 by an arm 47 on a shaft 149 moved axially by a bell-crank 150 and rotated by an arm 162, Fig. 4 (not shown). A shift interlocking mechanism is provided consisting of ball detents 168, 170, 172 for the rails 144, 146, 148 with cone-ended locking-bars 180, 182, 184 between detents 168, 172 and balls 174, 176 between the respective pairs of rails.
Patent GB-863156-A (GB)
Title: Automatic distributor of filter powder
IPC: B65G65/46
Filed: 1957-08-02
Abstract: 863,156. Screw conveyers. ATELIERS DE CONSTRUCTION E. D'HOOGE S.P.R.L. Aug. 2, 1957 [June 26, 1957], No. 24497/57. Class 78 (1). An automatic distributer for filter powder comprises a hopper 1 having one or more screw conveyers 6 at the bottom for discharging the material through an outlet 3 and an agitator 5 above the conveyers consisting of a rotary shaft 13 carrying a number of inclined vanes 14.
Patent GB-1536096-A (GB)
Title: Method of producing a continuously processed copper or copper alloy rod
IPC: B21B1/46
Filed: 1977-06-13
Abstract: 1536096 Producing copper rod and coated magnet wire SOUTHWIRE CO 13 June 1977 [16 June 1976] 24512/77 Heading B3A A method of producing copper or copper alloy rod comprising continuously casting molten copper or copper alloy into bar, hot-rolling the bar into continuous rod, hot-coiling the rod and subsequently cooling the coiled rod to room temperature to permit precipitation of nominal impurities and lowering of the recrystallization temperature of the rod. The coiling is carried out in the range 700‹ to 1200‹ F., preferably 950‹ to 1150‹ F. The rod is cooled at a rate not exceeding 300‹ F. per minute. The recrystallization temperature is sufficiently lowered to permit annealing at 500‹ F. Magnet wire may be formed by drawing the rod into wire and passing it through an annealing tower containing a molten enamelling compound at a temperature of approximately 500‹ F. so as to simultaneously anneal the wire. Apparatus for forming the rod includes a delivery device 10 for molten copper and a pouring spout 11 adjacent a peripheral groove on a rotary mould ring 13. A cooling system includes headers 17, 18, 19 disposed on the side of the mould ring and headers 20, 21 disposed either side of a metal band 14 to effect solidification of the metal. A cast bar 25 is fed via a conveyer to a rolling mill 28 which produces a continuous length of rod 30 of circular crosssection which is fed to a coiler 31. After hotcoiling the rod is delivered to a cooling station.