baber/WOPTO huggingface dataset:
Patent GB-247366-A (GB)
Title: Improvements in or relating to apparatus for increasing the cooling effect of air inbuildings and other places
IPC: F24F7/06
Filed: 1925-01-26
Abstract: 247,366. Dunlop Rubber Co., Ltd., and Angus, T. C. Jan. 26, 1925. Addition to 168,953. Forced ventilation; ventilating condwits, passages, and pipes, arrangements and adaptations of; ventilators.-The jet tube A of a device for increasing the cooling effect of air in buildings &c. of the kind described in the parent Specification is, according to one construction arranged to project through a vertical wall, partition &c. into a room &c., the tube A being hinged to the air trunk A' leading from a fan B which is placed on or below the floor level, Fig. 1, or supported on a bracket B, Fig. 2, on the other side of the wall at the same level as the tube A. The jet tube may be angularly adjusted by means of a link C<1> and lever C adapted to co-operate with a notched or perforated quadrant C<2>, Fig. 1, or by means of a rope D fixed to a ceiling bracket D' and passing around pulleys D<2>, D<3>, Fig. 2. Fig. 3 shows a construction for supplying air to the blind workings of mines in which the jet tube A, trunk A', fan B and compressed air motor or turbine E are mounted on a platform B<1> adapted to be fitted on the small trucks used in mines. The fan may adapted to draw air through a conduit B<2> or the exhaust air from the motor E may be led into the main air delivery or inlet of the fan by an exhaust pipe E<1>. The tube A in this construction is movably fitted on the trunk portion A<1> and can be angularly adjusted by means of a metal band F<5> which embraces the tube A, is pivoted at F<3> to a bracket F<4> extending from the trunk A<1> and provided at its lower ends with a locking-pin F<6> adapted to engage in one of a number of holes F<1> in quadrants F projecting from the trunk A<1>. The holes F<1> are connected by slots F<2> and the pin F' is formed with reduced portions so that it can be moved endwise to allow its reduced portions to be slid along the slots F<2> to enable the strips F<5> and jet tube A to be adjusted to the desired position.
Patent GB-1136541-A (GB)
Title: Improvements in and relating to thawing of frozen blocks
Inventor: JASON ALFRED CHARLES
IPC: H05B3/00
Filed: 1966-01-18
Abstract: 1,136,541. Internal resistance heating. NATIONAL RESEARCH DEVELOPMENT CORP. 16 Jan., 1967 [18 Jan., 1966], No. 2330/66. Heading H5H. A block 11 of frozen food is thawed by passing a current through it between plate electrodes 10, damage to the food by localized heating being prevented by passing a heat exchange medium in contact with the electrodes to keep their temperature below that at which damage would otherwise occur. As shown the heat exchange medium flows round a circuit 13 including a pump 15, a heat exchanger 14 and a pair of hollow electrodes 10. In operation a timer 18 initially switches on a heater 16 which raises the temperature of electrodes 10 to a desired level. Then the timer switches on a variable voltage current source 12 supplying the electrodes 10 and a refrigerating source 17 which via heat exchanger 14 cools the electrodes 10.
Patent GB-584844-A (GB)
Title: Improvements in duplicating apparatus
IPC: B41L27/26
Filed: 1946-01-25
Abstract: 584,844. Stencil hand-stamps. LOUGHLIN, A.M. Jan. 25, 1946, No. 2331/45: [Class 100 (ii)] In a stencil hand-stamp of the kind comprising a base 9, an ink pad 10 thereon, and a frame 14, such as the hinged lid of a box 13, for stretching a stencil 11 down upon the pad, a marginal reinforcing-frame 12 is secured to the edges of the stencil and is large enough to fit around the edges of the pad so that the stretching-frame 14 overlies the reinforced edges of the stencil. In a modification, Fig. 6 (not shown), the stretching-frame, 'instead of being hinged, telescopes over the base. The base and frame may be made of wood, metal, cardboard or plastic material.
Patent GB-1136271-A (GB)
Title: Two-dimensional beam scanning device
IPC: G02F1/33
Filed: 1966-01-18
Abstract: 1,136,271. Light deflectors. UNITED AIRCRAFT CORP. 18 Jan., 1966 [8 Feb., 1965], No. 2373/66. Heading H4F. [Also in Division H1] An ultrasonic optical beam deflection cell comprises an enclosed chamber 25, Fig. 1, with glass sides 18 and 20 for passing a light beam therethrough, containing a transparent liquid medium and a transducer 24 having the form of a section of arc of a cylinder for producing a standing sonic wave in the medium. To cause the light beam, preferably a laser beam of small diameter, to scan with a circular motion, the beam is directed through the cell at a point just off centre to either side of the focal point of the ultrasonic transducer and the transducer is excited by a sinusoidal electrical signal. In the dominant radial field the deflection is linear and maximum at the focus and as the beam is moved to various positions away from the focal point the circular scans alternate with horizontal and vertical scans depending upon the acoustic field at that particular point, Fig. 4, not shown. The transducer is preferably a piezoelectric ceramic such as barium titanate and is mounted on a glass pedestal. As shown the transducer comprises an arc of right circular subtending 120 degrees although other arcs of 30, 60, 90 and 180 degrees may be used. The transducer arrangement may comprise a cylinder of ceramic material capable of transducer action with two opposing electrodes subtending 90 degrees, Fig. 9, not shown, or two 120 degree transducers bonded to opposite walls of the chamber, Fig. 8, not shown. The liquid medium may comprise either trichloethylene or tetrachloethylene. The ultrasonic cell may be used to internally modulate the output of alaser to thereby produce one or more large output pulses. As shown, Fig. 7, the ultrasonic cell 56 is positioned in the optical cavity of a pumped ruby laser and the output from the trigger 50 of lamp 44 is passed through a variable delay to a pulse generator 72 which excites the transducer in cell 56 to generate a strong travelling shock front. Mirror 54 of the optical cavity is deviated from parallelism with mirror 52 such that for a given amount of pumping enough of the spontaneous fluorescence from ruby 42 is deflected away from the ruby and lasing is prevented, resulting in a large overpopulation of excited atoms. When the shock front of the pulse nears the ruby axis the spontaneous radiation from ruby 42 passing through cell 56 interacts with the ultrasonic wave and is refracted and a condition occurs when the radiation is directed perpendicular to mirror 54 restoring the feedback to ruby 42 with resulting laser action and a very large burst of radiation. The laser beam may be intensity modulated by varying the signal applied to the transducer within the ultrasonic cell. With mirrors 52 and 54 parallel the lasing action will diminish when a signal is applied to the cell.
Patent GB-555581-A (GB)
Title: Assembling means for brake shoe retracting springs
IPC: F16D65/08
Filed: 1942-02-24
Abstract: 555,581. Internally expanding brakes. WAGNER ELECTRIC CORPORATION. Feb. 24, 1942, No. 2424 Convention date, March 31, 1941. [Class 103 (i)] The connection of the retraction spring 13 between the two shoes of an internal shoe-drum brake is made easier by connecting one end of the spring 22 to the shoe 9 through an intermediate member comprising a lever 16, 18 having one end 17 journalled in the shoe web. The spring is secured to the member when it is in the position shown dotted as at 20, this action being quite easy since the spring tension is then considerably relaxed. The lever 16, 18 is then rotated anti-clockwise to the position shown in full lines whereby the spring is stretched and held rigid by the engagement of the end of the part 16 with a fixed abutment 23.
Patent GB-871964-A (GB)
Title: Improved centreless grinder
IPC: B24B5/18
Filed: 1958-01-24
Abstract: 871,964. Centreless grinders. LANDIS TOOL CO. Jan. 24, 1958 [Jan. 25, 1957], No. 2429/58. Class 60. A centreless grinder comprises a grinding wheel, a cam-shaped control wheel and means for driving said control wheel for rotating and feeding a workpiece against said grinding wheel in which a complete grinding operation is performed at each revolution of the control wheel and the control wheel is stopped for a predetermined interval at the end of each revolution and started again automatically at the end of said predetermined interval. The grinding wheel 10 is rotated through belts 12 by motor 13 ; the control wheel 14 is rotated through belts 17 and chain 16 by motor 18. The latter is controlled by contact 1CR1 of relay 1CR which is controlled by contacts TR1, TR2 of timer relay TR which is controlled by switch 22 actuated by a cam 20 or the control wheel spindle. With switch 22 open, relay TR is not energized so that contact TR1 is in break position and relay 1CR is not energized, contact 1CR1 being in make position whereby motor 18 rotates the control wheel. When the grinding throat is at its minimum, switch 22 is closed to energise relay TR, contact TR1 closing and contact TR2 remaining closed for a predetermined interval of time. With both contacts TR1, TR2 closed relay 1CR is energized, opening contact 1CR1 to stop the motor 18. After the predetermined interval, during which a ground workpiece 30 is ejected by plunger 57 actuated by solenoid 56 against spring 58 and the.insertion of an unground workpiece, contact TR2 opens, thus de-energizing relay 1CR so that contact 1CR1 closes and motor 18 restarts. Specification 644,455 is referred to.
Patent GB-486332-A (GB)
Title: Improvements relating to turning lathes
IPC: B23Q1/70
Filed: 1937-01-28
Abstract: 486,332. Lathes. WICKMAN. A. C. Jan. 28, 1937, No. 2486. [Class 83 (iii)] A lathe headstock comprises the combination of a spindle a, which is both rotatable and axially slidable and is adapted to carry the workpiece, another rotatable and axially slidable spindle i, having a screw-thread or equivalent connection with a normally stationary part w of the headstock, a undirectional clutch x for transmitting' rotary motion from the second to the first spindle, means for transmitting axial motion from the second to the first spindle, means for driving the second spindle at a rate appropriate to a thread-milling operation and means for driving the first spindle at a rate appropriate to a normal turning operation. A driving shaft e transmits motion either to a belt-pulley d or to a shaft n through bevel wheels q, p, according to the position of a hand lever t operating simultaneously clutches g, h, and r, s. The belt pulley d drives the spindle a for normal turning operations while the shaft n drives, through worm gearing m, the spindle i at a much slower speed, the shaft n may also be rotated by a, handwheel o. The spindles i and a are connected together for axial movement by the thrust bearings 3 and with the drive to the spindle i engaged the threaded portion v keyed thereto rotates in the nut w, which is held stationary, and the axial movement necessary for a thread milling operation takes place. The nut w may be rotated to adjust the axial position of the spindles prior to a working operation. The apparatus is described as applicable to performing a, facing operation on the end of the nose of a shell and screw thread milling the interior of the nose.
Patent GB-224771-A (GB)
Title: Improvements in and connected with cigar making machines
IPC: A24C1/30
Filed: 1924-01-30
Abstract: 224,771. M³ller, Fritz, & Co., Ges., J. C., and Fritz, A. Jan. 30, 1924. Cigar-making machines. - In a cigar-making machine the rollers of a nest in which a wrapper is applied to a tobacco bunch are so driven that they all continue to rotate both when the nest in open to receive the bunch and when the nest is closed. In Fig. 1, which shows a development of the rollers of a nest, the rollers 1, 2, 3 are mounted in a stationary frame and driven from a central pinion c. The rollers 4, 5 are mounted in a frame which can be rotated about the axis of the roller 3 to open the nest, and are driven from a pinion f which moves with the frame carrying the rollers 4, 5 and remains all the time in mesh with a pinion d or the shaft of the roller 3. In a modification, Fig. 5, the movable frame e can be rotated about the fixed axis of a pinion g in mesh with the pinion b of the roller 3 driven from a central pinion c. Motion is transmitted from the pinion g to a pinion h on the shaft of a roller 4 and thence through an idle pinion i to the pinion k of the roller 5.
Patent GB-1072082-A (GB)
Title: Improvements in nozzles for jet engines
Inventor: MCDONALD HENRY
IPC: F02K1/08
Filed: 1965-01-20
Abstract: 1,072,082. Jet propulsion nozzles. BRITISH AIRCRAFT CORPORATION (OPERATING) Ltd. Jan. 20, 1966 [Jan. 20, 1965], No. 2507/65. Heading F1J. A jet engine nozzle comprises an annular throat defined between a central plug member and a surrounding wall, the plug having a rear face which is transverse to the axis of the nozzle. A stem extends rearwardly from the plug and supports at its rearward end a body which, in use, joins up with a streamline extending rearward from the periphery of the rear face of the plug member. In Fig. 1 the annular throat 39 is defined between the periphery of the plug member 10 and the outer wall 40, the plug member having a rearward face 41 lying in a plane transverse to the axis of the nozzle, also a rearwardly extending stem 11 which supports at its downstream end a hollow cylindrical member 45. The boundaries of the jet stream are indicated by streamlines 42, 43, the streamline 43 joining up with the external surface of the cylindrical member 45. A further streamline 47 extends rearwardly from the member 45. A recirculatory flow of "dead" air occurs as indicated by the arrows in the spaces 44, 48, 50. In a second embodiment Fig. 2 (not shown), the stem carries at its downstream end a member 51 of paraboloidal form 53 having an annular forward surface 54 of concave form, the streamline 43 joining up with the surface 53. The length of the stem 11 may be adjusted for example by means of pinions 13 engaging with a rack 14 formed on the stem 11 Fig. 3 (not shown), whereby the position of the body 45 or 51 may be varied to suit different conditions of operation. The diameter of the body 45 or 51 may also be varied for the same reason. The rod 15 extending through the stem 11 carries at its downstream and a linkage 20, 21, 22 Fig. 4 (not shown), the links 20 being connected to a nut member 19 engaged on a screwed portion of the rod 15, the links 20, 22 being connected to radial fins 23 which are of T-form 27 Fig. 5 (not shown), the T-portions 27 and intermediate members 29 defining the cylindrical body 45, the diameter of which is thus variable by means of the motor 16 drivingly connected to the rod 15. The paraboloidal member 51, Fig. 2, may have its leading edge constituted by adjustable flaps 34, Fig. 6 (not shown), whereby the diameter thereof may be varied.
Patent GB-923264-A (GB)
Title: Folding easel
IPC: A47B97/08
Filed: 1962-01-23
Abstract: 923,264. Easels. D. C. KILLEN. Jan. 23, 1962 [Jan. 23, 1961; Oct. 3, 1961; Jan. 3, 1962], No. 2523/62. Class 52 (3). An artist's easel comprises a normally upright standard 11 having a vertical slot 13 and a pair of elongated clamping devices 14, 16 for supporting a frame 22 for a canvas at the top and bottom edges thereof, said devices 14, 16 being adjustably secured by means 17, 18 engaging the slot 13. In modifications vertical support members 66 and lateral, slotted member 64 are provided with or without extension assemblies 84 comprising horizontal pairs of adjustable extension members 88, 89 secured uprights 86. The foot 54 of the brace 44 may be adjustably connected to the foot 53 of the standard 11 by outriggers 106 (Fig. 9, not shown). The easel is adjustable by interengaging thumbscrews and slots. In one embodiment (Fig. 15), the easel may be converted to a table in which case a leg assembly 128 is provided.
Patent GB-715533-A (GB)
Title: Improvements in or relating to drafting mechanisms for textile fibres
Inventor: NOGUERA JOSEPH
IPC: D01H5/56
Filed: 1952-01-30
Abstract: 715,533. Drafting mechanism. CASABLANCAS HIGH DRAFT CO., Ltd. Dec. 17, 1952 [Jan. 30, 1952], No. 2544/52. Class 120(2) A drafting mechanism of the kind in which top rollers are carried and weighted by an arm pivotally mounted on a member fixed at the rear of the mechanism has the arm adapted for removable engagement on the pivotal mounting and catch means provided for releasably retaining the said arm on its mounting. As shown the side walls 1a of the arm 1 are formed with downwardly directed aligned slots 7 the mouths of which open into the free under edges of the respective side walls. These slots 7 engage over a pivot pin 10 fixed between parallel side plates 9 clamped on to a fixed bar 8, thus providing a pivotal mounting for the arm 1. Arranged between the side walls 1a is a transverse pin 11 which pivotally carries a hook-like catch member 12 which is urged by a spring 13 into a position for engagement under the pivot pin 10. To remove the arm from its mounting it is swung upwards and the catch member 12 unhooked, manually, from the pin 10. To reassemble the slots 7 are placed over the pin 10 and the arm pressed downwards.
Patent GB-1519074-A (GB)
Title: Tape recording and playback apparatus
IPC: G11B5/03
Filed: 1976-01-23
Abstract: 1519074 Tape recording and playback apparatus INTERNATIONAL BUSINESS MACHINES CORP 23 Jan 1976 [3 March 1975] 02615/76 Heading G4C In rotating head magnetic tape recording and playback apparatus employing a transformer interface 102 between a stator 100 and a rotor 104 of the rotating head, a first pair of windings 124 transfers digital data signals having a predetermined frequency, a second pair of windings 114 transfers a clock signal having a frequency N(>1) times the predetermined frequency, the digital data signals being synchronized by an electrical circuit 128 mounted on the stator with a signal derived from the clock signal, and the transferred digital data signals being resynchronized by an electrical circuit 174, 178 mounted on the rotor with a signal derived from the transferred clock signal. Respective third and fourth pairs of windings 138, 150 transfer an erase signal, synchronized at 136 with the signal derived from the clock signal, and a digital data signal read from a magnetic tape. A fifth pair of windings 142 transfers power to, and a circuit 140 senses the current drawn by, the rotor. A rotor fault shuts down a regulator 188 thereby reducing the current drawn by the rotor, the current reduction being sensed by circuit 140 and used to remove power from the rotor. Writing on a magnetic tape is inhibited by a circuit 186 unless both data signals and a clock signal are simultaneously present on the rotor, a write fault also removing power from the rotor. Transmission line transformers may be used in the transformer interface, permitting NRZ and NRZI codes to be used. The mechanical construction of the rotating head is given in Fig. 1 (not shown).
Patent GB-607143-A (GB)
Title: Improvements relating to draught-excluders
IPC: B60J10/08
Filed: 1946-01-26
Abstract: 607,143. Draught excluders; preventing rattling of doors. MORRIS MOTORS, Ltd., OAK, A. V., COCKBURN, J. H., and BEATON, G. H. Jan. 26, 1946, Nos. 2625 and 6203. [Class 20(iii)] A draught excluder and rattle preventer for doors and windows, e.g., of vehicles, comprises a trough-shaped rubber strip A embracing a metal channel B bonded thereto along its base so that there is a gap between each side of the channel B and the adjacent portion of the trough A. The part B, intended to embrace and to be riveted or screwed to a flange on the frame of a door or window opening, may be disposed centrally or not of the trough A and the sides of the latter may be of different depth. To provide flexibility, transverse slots C may extend to almost the full width of the metal strip from which the part B is formed; the edges thereof may be wired at D. The parts A and B may be united by heating and pressing in a mould, and before bending to the U-shape shown, the metal strip may be fed through a die by which it is covered with rubber. A fabric covering may be applied to the outside of the rubber trough.
Patent GB-631941-A (GB)
Title: Improvements relating to valves of water gas generators and the like
IPC: C10J3/72
Filed: 1946-01-26
Abstract: 631,941. Charging furnaces. HUMPHREYS & GLASGOW, Ltd., and MACGREGOR, F. A. Jan. 26, 1946, No. 2641. [Class 51 (ii)] [Also in Groups XXIX and XXX] A valve, other than a stack valve, for controlling an opening to atmosphere in a water gas, producer gas, hydrogen or like plant comprises a valve member 17 pivotally mounted by a pin 7' on a lever 7 fixed to an axle 6 having a pair of wheels 5 which run on tracks 4 on either side of the valve seat 3 and operated through mechanism such that the valve member has applied to it, during the latter part of its closing movement, a load acting to retain it on its seat. As shown, the valve controls the opening 1 into the charger of a generator or producer to which coke is fed through a shoot 2 having a pivoted spout 21 connected to the valve mechanism for operation therewith. At each end of the axle 6 is fixed an arm 12 carrying a roller 13, these rollers coacting with cam surfaces 15a on arms 14 pivoted at 15 and loaded by springs 16. The valve member is maintained parallel to its seat by a rod 7' fixed to the pin 7<SP>1</SP> and sliding in a hole in a lug 4<SP>1</SP>. A bell-crank lever 8, pivoted at 9, is connected to the end of the lever 7 remote from the valve member and is actuated by a link 11. As seen in Fig. 1, after the valve member has reached its seat, the lever 7 is further actuated by the bell-crank lever to pivot about the pin 7' and raise the wheels 5 from the tracks so that the spring-loaded arms 14, acting through the rollers 13, load the valve member. In a modification, the spout, which is of slightly different form from that shown in Fig. 1 is connected directly by a link to an arm on the shaft bearing the bell-crank lever. Specification 584,326, [Group XXIX], is referred to.
Patent GB-770652-A (GB)
Title: Improvements in devices for supporting coiled electric conductors on electrical apparatus
IPC: A47L5/36
Filed: 1954-01-29
Abstract: 770,652. Bobbins. ELECTROLUX, Ltd. Jan. 29, 1954 [July 27, 1953], No. 2711/54. Class 120 (3). [Also in Group XXVIII] As shown in Figs. 2 and 3, a frame 22 on which electric cable may be wound is attached to the rear end 13 of a vacuum cleaner 10 by means of a threaded portion 24 which screws into internal threads in the exhaust opening 17. In a modification, the frame is replaced by a funnel like member of sheet metal. In another modification, Fig. 6, a metal or plastic winding frame 25b, 26b is employed. The end of the cable may be held by a clip 33 of metal or plastic material mounted thereon and engaged with one of the previously wound turns 42 of the cable. The frame may be integral with a metal plate 16 on the rear cover 13 which may be of plastic material. The threads would be formed in the exhaust opening within the frame. The threads may be replaced by a fastening member of another kind. The frame may consist of a hollow member substantially in the shape of a truncated cone or pyramid or similar body having an outward concave supporting surface.
Patent GB-1269322-A (GB)
Title: Improvements in miniature helical resonators
IPC: H01F21/02
Filed: 1970-01-20
Abstract: 1,269,322. Variable capacitors; inductors. GENERAL ELECTRIC CO. 20 Jan., 1970 [27 Sept., 1969], No. 2711/70. Headings HIM, HIT. Helical coil 22 for use as a resonator is wound round former 16 mounted in insulating base 10 and is tuned by varying the capacitance between it and conducting can 30 by adjusting the position of threaded dielectric member 25. The latter engages the threaded inner faces of posts such as 11a, 11c extending from base 10 (see also Fig. 1, not shown). End 22a of coil 22 is in electrical contact with can 30 by means of a tab. Former 16 as shown is threaded to support the coil turns and has slots at each end to secure the ends of the coil. The coil may be coupled to a circuit by means of a window (32) in can 30 (Fig. 1).