baber/WOPTO huggingface dataset:
Patent GB-690581-A (GB)
Title: Airplane wheel and brake assembly
IPC: F16D55/02
Filed: 1950-11-09
Abstract: 690,581. Disc brakes. BENDIX AVIATION CORPORATION. Nov. 9, 1950 [Nov. 10, 1949; Dec. 1, 1949], No. 27431/50. [Class 103 (i). In a wheel and disc brake assembly the hydraulic actuator is arranged to be rotatable with the wheel and a pressure-liquid containing swivel connection is arranged between the wheel and the fixed axle member on which it rotates. In the arrangement shown in Fig. 1, the annular hydraulic actuator cylinder and piston 88, 90 are located within a space enclosed by the sideplates 18 and 20 of the split hub 12, 14, the plates 18, 20 being rotatable by bearings 26 on the fixed hollow shaft 28. Hydraulic fluid supply is led to the rotatable actuator 88, 90 by a pipe 44 through the bore of shaft 28, T branchpiece 46, an annular space 49 and a pipe 94 from the connection 68 to the actuator cylinder. Leakage of liquid from the space 49 is prevented by a swivel connection comprising rubber sealing-rings 62 surrounding the axle and pressed against a stationary bearing-member 56 by a compression spring 64 so as to press an annular projection on member 56 against a similar annular projection on member 52 rotatable with the wheel. When actuated both the cylinder 88 and piston 90 move outwardly, carrying with them pins 87 and 76 respectively, so as to compress, by pressure-plates 79, similar friction disc assemblies on each side of the wheel, the discs 74 being non-rotatably but axially movable on a member 70 rigid with the fixed axle 28, the outer faces of the side-plates 18 and 20 acting as end thrust members. The pins 76 and 87 which are staggered circumferentially so that there is no interference between their movements, carry integral lugs 82, 85 between which are secured brake release springs 86. In a further embodiment shown in Figs. 4 and 5, the friction disc assembly is applied from one end only by a circumferentially arranged series of actuator pistons 241, fluid supply to the cylinders 239 being provided through a central tube 282 coaxial with the hollow fixed shaft 218. The connection of the rotating cylinders to the fixed tube 282 is by means of a conduit 296 and socket 278, the coupling of which is made liquid-tight by means of a swing nipple 290 having a rubber-like sealing gland member 292 on its inner end. The circumferentially-arranged cylinders 239 are connected by a passage 236 which is formed by casting the side-plate 216 around a stainless steel tube and then machining out the cylinders 239 so as to pierce the tube and thus provide for entry of liquid therefrom. Adjustment for wear of the friction discs is provided by an annular screwed end thrust member 256 having teeth on its periphery engaged by a pin 260 on a rod 262 which may be rotated by a key from outside the wheel and locked by a set-screw 264.
Patent GB-1081820-A (GB)
Title: Improvements in or relating to piercing tools
Inventor: RUNCIMAN ROBERT DAVIDSON
IPC: B21D28/24
Filed: 1965-06-29
Abstract: 1,081,820. Punches. GENERAL ELECTRIC CO. Ltd., and R. D. RUNCIMAN. June 29, 1966 [June 29, 1965], No. 27505/65. Heading B3W. A piercing tool 1 for simultaneously punching a plurality of holes comprises a multiplicity of punches 6, each supported from a punch-holder 4 so as to be movable relative to the punch-holder in the direction of the axis of the hole made by that punch, and a removable key plate 7 adapted, when fixed to the punch-holder, to constrain the movement of selected punches so that only the selected punches are effective. The punch-holder 4 has a recess 5 which extends into the block from the upper face and from one side and a counter-sunk hole to receive each punch. The keyplate 7 rests on shoulders 9 and has a hole corresponding to each punch. Studs 8 are inserted in selected holes according to the desired hole pattern. The keyplate is retained by a block 10 and a plate 11. The punchholder is mounted on the ram 12 of a press, and as the ram descends those punches which are not constrained by studs recede into the punch-holder. A plate 2 which acts as a holddown during punching is acted on by the punchholder through rubber pads 16. On the return stroke the plate 2 engages stop-nuts 22 on posts 18 and acts as a stripper. In a modification the key plate comprises two thin plates, one having a matrix of holes corresponding to the punchholder and the other being plain. Countersunk headed studs in the required positions are held in place by screwing the plates together. The tool is for perforating printed circuit boards.
Patent GB-327098-A (GB)
Title: Improvements in or relating to cigarette making machinery
IPC: A24C5/34
Filed: 1928-09-25
Abstract: 327,098. Molins, W. E. Sept. 25, 1928. Cigarette-making machines.-The rate at which tobacco is fed to a cigarette-making machine is varied by means of a weighing mechanism receiving at intervals batches of cigarettes from the machine. The weighing mechanism itself is described in Specification 260,744, [Class 143, Weighing-apparatus]. To the beam 1 is attached an arm 4 having steps 5, 6, 7 corresponding to light, normal, and heavy cigarettes, and engaged bv a feeler 8 carried by an arm 9 which, by links and levers 10, 11, 12, 13, is connected to the feed control mechanism. The control shaft 27 is connected to the regulating mechanism of the variable-speed gear which drives the feeding mechanism. Loose worm-wheels 29, 30 are driven in opposite directions from a chain 34 and sprockets 33. Cam discs 35, 36 integral with the wheels 29, 30 carry driving pawls 37, which may be held by catch pawls 38 from engagement with ratchet heels 40 keyed to the shaft 27. Rollers 41 on the catch pawls 38 engage with a camshaft 43 unless the latter is moved by reason of the position of the feeler 8 to bring one of a pair of flats 45, 46 adjacent to but clear of the path of the roller 41. When, however, the roller hits the cylindrical part of the cam, the catch pawl 38 releases the driving pawl 37, which then rotates the ratchet wheel 40 and shaft 27. A cam 48 throws the pawl 37 away from the wheel 40, after about a quarter revolution, to be re-engaged by the catch-pawl 38. The period of engagement of the members 37, 40 is adjusted by means of a quadrant mounted on a bevel wheel in gear with bevel wheels integral with the cams 48.
Patent GB-1442487-A (GB)
Title: Drills driven by electric motors with regulatable speed
IPC: H02P25/14
Filed: 1974-06-21
Abstract: 1442487 Speed control of electric drill motors METABOWERKE KG CLOSS RAUCH & SCHNIZLER 21 June 1974 [4 July 1973] 27556/74 Heading H2J A motor speed controlling circuit is provided in an electric drill whereby series motor 13-15 having field coils 3, 4 is supplied with A.C. at 1, 2 via thyristor 12, the firing point of the thyristor being controlled by a circuit including diodes 27, 28 and capacitor 29, and potentiometers 21, 25 having sliders 24, 26 connected together as shown, potentiometer 21 forming part of a voltage divider including resistances 20, 22 and diode 19, and the circuit is controlled by a manually operated switch mechanism 11 mounted in the handle of the drill. In its "off" position shown, switch 11 does not connect contact 8 with either of contacts 9 or 10 but it may be moved to connect contacts 8 and 9 together. Movement of the switch 11 over elongate contact 9 also causes movement of the slider 26 and provides control of motor speed from zero to a speed determined by the setting at 21, 24 which is independently and manually adjustable. In its maximum "on" position switch 11 connects all contacts 8, 9, 10 and when potentiometer 21 is moved to enable maximum speed to be attained by the motor, switch 16 is closed to by-pass the thyristor 12. Firing point control is effected by comparison at 29 of the back e.m.f. and the potential at 26.
Patent GB-837241-A (GB)
Title: Improvements in or relating to tape slitting apparatus
Inventor: LORD GEORGE WILLIAM
IPC: B23D35/00
Filed: 1957-09-02
Abstract: 837,241. Slitting apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 26, 1958 [Sept. 2, 1957], No. 27677/57. Class 31 (1). Tape-slitting apparatus comprises a balanced assembly of pairs of peripherally overlapping and co-operating cutter discs 1, 3, one disc 3 of each pair being flexible and of dished form with a cutting face 10 normal to the axis of the disc, and the other disc 1 of the pair being rigid and being maintained in contact with the cutting face 10 of its co-operating disc 3 under a pressure sufficient to distort part of the cutting face 10 by an amount sufficient to move the area of contact of the discs 1, 3 away from the outer edge of the cutting face 10. The shaft 5 carrying the discs 3 is adjustable relatively to the shaft 2 carrying the discs 1 to vary the degree of overlap of the co-operating discs. For this purpose, the shaft 5 is mounted in bearings on a plate 18, Fig. 4, secured to a plate 12 which is slidable, by means of differential screw mechanism 23 of known type, in guides 15 secured to a back plate 16 having secured thereto bearings in which the shaft 2 is mounted. A micrometric gauge 27 having its moving arm 28 in contact with the lower edge of the plate 12 enables the amplitude of movement of the plate 12 to be determined. The shaft 2 is driven and the disc 3 of each pair of discs is driven by frictional engagement with the driven disc and/or with the tape being slit. The slit tape is stripped from the discs by means of metal rings loosely mounted between adjacent pairs of discs. Adjacent slit tapes are wound on drums arranged in sets positioned one above the other.
Patent GB-1394746-A (GB)
Title: Bags for shopping and a device for suspending and opening said bags
IPC: B65D33/00
Filed: 1972-06-14
Abstract: 1394746 Bags; dispensing bags Y I SUOMINEN 14 June 1972 [14 June 1971 26 Aug 1971 6 Sept 1971] 27724/72 Headings A4G and A4T [Also in Division B8] Apparatus for dispensing and holding open bags comprises a bag support member 31 which supports a stack of bags by passing through opposed holes formed in the walls of the bags, the member 31 being tubular or formed with channels so that air blown therethrough opens the top most bag. The stack may hang vertically, with member 31 arranged horizontal, or be arranged as shown. The bags are formed with opposed suspension holes of different sizes, so that the second wall may be retained by a flange on the member 31 or on a sleeve about the member 31, while the first wall freely passes this flange. The bags may have one or two pairs of opposed holes, and may also have a handle hole. Pusher 34 biased by spring 36 may be provided for the stack, and member 31 may carry a nozzle e.g. 37 which diverts the air-flow into the top most bag. During filling of the bag with goods, it rests on support plate but, after filling the bag is removed from member 31, and the plate 46 retracted against the action of spring 52, allowing the full bag to travel over rollers 51 to the customer. The plate 46 may be retracted by lever 49 or electrically or pneumatically.
Patent GB-1042329-A (GB)
Title: Separation of liquid mists from gases
Inventor: BRINK JOSEPH ANDREW
IPC: B01D46/24
Filed: 1963-07-12
Abstract: 1, 042, 329. Gas filters for removing liquid particles. MONSANTO CO. July 12, 1963, No. 27758/63. Heading B1T. A device for separating and collecting a finely divided liquid mist dispersed in a gas comprises a body of wettable fibres having diameters between 5 and 70 microns and compressed to a bulk density which, expressed as pounds per cubic foot, is from 2 to 15 times the specific gravity of the material from which the fibres are formed, the body being confined between perforated plates. The fibres may be of glass, asbestos from which fine fibres have been removed, slag wool fibre, or polyprolene. The device is suitable for the removal and recovery of sulphuric or phosphoric acid mists from process gas streams. As shown, mist eliminator elements 14 are arranged at the top of a sulphuric acid absorption tower 10. Each element comprises two concentric perforated screens 30, 32 between which is the fibre bed 34. Mist laden gases flow as shown by the arrows, removed acid draining through conduits 38 and seal ports 40 and returning to the lower part of the absorption tower. In a modification, Fig. 3 (not shown), the mist eliminator elements are arranged in a tank separate from the absorption tower.
Patent GB-225538-A (GB)
Title: A method of working steam turbine installations
IPC: F01K3/24
Filed: 1924-11-20
Abstract: 225,538. Akt.-Ges. Brown, Boveri, et Cie. Nov. 26, 1923, [Convention date]. - Motor power plant. - In motor power plant comprising a high-pressure turbine b receiving steam from a high-pressure generator a, and low-pressure turbines c<1>, c<2> receiving steam either from the turbine b through a superheater i, or from low-pressure generators d<1> - - - d<4> through a pipe l. or from both, surplus steam from the generator a or from the turbine, b is led by pipes m, f to steam-distributing nozzles g<1> - - g<4> in the lowpressure generators, the steam flowing into the pipe f before reaching the superheater i. The low-pressure generators have superheaters e<1> - - e<4>. Non-return valves h, k are fitted in the pipes f, l and a reducing valve n in the pipe m.
Patent GB-822481-A (GB)
Title: Improvements in or relating to trucks
Inventor: SCAMMELL DONALD
IPC: B62B1/14
Filed: 1954-09-27
Abstract: 822,481. Hand trucks, SALISBURY PRECISION ENGINEERING Ltd. Dec. 28, 1955 [Sept. 27, 1954], No. 27876/54. Class 108(1) A hand truck having a frame 1 mounted on wheels 14 is provided with arms 9 carrying rollers 15 and an extension 10 carrying castors 17 and is characterized in that there is provided a tilting means pivoted on the cross shaft 23 and comprises an arm 21 carrying a wheel 20 which is brought into a load-supporting position ahead of the wheels 14 by depressing the foot lever 28. The axes about which the truck pivots to bring it into wheeling position is thus brought closer to the load. The truck may be provided with a platform 32 raised by a hydraulic jack 50. Specification 816,473 [Group XXX] is referred to.
Patent GB-279076-A (GB)
IPC: C06F1/20
Abstract: 279,076. Kõppler, F. Oct. 12, 1926, [Convention date]. Bending, creasing, and the like. - Relates to match booklets, comprising a strip of pasteboard &c. divided into two lateral rim portions subdivided and converted into matches and folded inwardly, and two middle portions serving as covers for the matches and hanging together with the matches at their feet. To facilitate folding the strip from which the booklets are made into booklets, four flutings 68, 69, Fig. 24, are formed on the strip by rolls 78, 79, provided with ribs such as 74, 75, Fig. 16, against which the strip is pressed by resiliently mounted wheels 70, 71 arranged in pairs, the members of each pair being set at an acute angle to one another. In folding the strip, rolls 86, 87 turn the side portions about the flutings 69 to form a U-shape, rolls 88. 89 turn them inwards at. an acute angle, and rolls 90, 91 fold them flat upon the centre portion. Rolls 92. 93 now fold the strip about the flutings 68 forming an acute angle whereupon rolls 94 mounted on vertical axes press them closely together and rolls 95 complete the booklet, Fig. 30.
Patent GB-627543-A (GB)
Title: Apparatus for fatigue testing specimens or test pieces
IPC: G01N3/38
Filed: 1946-06-20
Abstract: 627,543. Fatigue testing of materials. DE HAVILLAND AIRCRAFT CO., Ltd., HADWIN, R. N., and POLLARD, J. R. June 20, 1946, No. 27930/48. Divided out of 627,501. [Class 106 (ii)] In apparatus for testing specimens for fatigue, particularly those of metal or wood, and having welded or resin-bonded joints, one or two specimen strips being fixed at one end to a base and maintained in vibration by a magnetic exciter fed by an amplifier, and the input to the amplifier being supplied by a pick-up device in close proximity to the strips, the output of the amplifier is limited to a constant amplitude independently of the amplitude of the input to the amplifier from the pick-up device. The apparatus, apart from the ampli tude limiter, is described in Specification 627,501, a pick-up feeding a degenerative amplifier which passes the signals to a phasecorrector, an amplitude limiter, a filter, a power amplifier, a condenser, and then to one coil of an E-shaped electromagnetic exciter arranged to vibrate the specimens at their natural frequency. A further coil on the exciter is' supplied with direct current to polarize the exciter, or a permanent magnet may be used for this purpose; this avoids frequency-doubling and ensures that the specimens vibrate at their fundamental frequency. The amplitude limiter comprises two diodes 18, 19 biassed by voltages derived from potential divider resistances 20, 21, 22 so that the amplitude of the signal in either direction is short-circuited when it exceeds the value of the bias on one or the other diode. Bias is supplied from a high-tension supply 23. Resistances 21, 22 are equal in value, and the mid-point is connected through resistances 13, 24 to the cathode of diode 18 and anode of diode 19, the anode of diode 18 being earthed at 31 and the cathode of diode 19 being connected to the positive end of resistance 21. Condensers 25, 26 prevent A.C. voltage at signal frequency being developed across resistances 21, 22. The signal is fed from the amplifier to the input 27 of a resistance-coupled triode amplifier 28, the amplified signal is then fed through a blocking condenser 29. The signal is changed by the action of the diodes 18, 19 to a square-topped wave-form of amplitude equal to the voltage developed across either of resistances 21, 22, and is passed from the amplitude-limiter to a filter and power amplifier.
Patent GB-298562-A (GB)
Title: Improvements in and relating to suspension mechanism for vehicles
IPC: B60G11/04
Filed: 1928-09-28
Abstract: 298,562. Moitrot, C. C. Oct. 11, 1927, [Convention date]. Springs, arrangement of, and mounting undercarriages on.-One or both ends of each laminated spring are connected to the frame of the vehicle by oscillating levers pivoted to the wheel axle and pivotally and slidably mounted on the vehicle frame so that the arms of the springs, which are of unequal length, are displaced vertically by road shocks &c. through different distances, whereby the suspension is rendered aperiodic and vibration is diminished. In one arrangement, the axle, or a wheel, is provided with lugs c, d. Fig. 1, and a sole e to which the longitudinal or oblique spring f is secured at a suitable part of its length. One end l of the spring is connected by a shackle i to an intermediate point k of a lever g which is pivoted to the lug d and is provided at its face end with a roller h provided with cheeks and bearing on the chassis a. The other end r of the spring is connected by shackles o to the end p of a lever m pivoted to the lug c and provided at the intermediate point with a cheeked roller n also bearing on the chassis. The lengths of the spring parts and levers and the positions of the point k and rollers h, n are arranged to give any desired proportion between the movements under shocks of the spring ends l, r in order to lessen oscillatory movement of the spring. Either roller h, n may be replaced by a pivot fixed to the chassis. Two levers similar to the lever g may be employed, or two levers similar to the lever m, in which case the levers may be identical. One lever only may be used, of either the form g or the form m, the other end of the spring being pivoted or shackled to the chassis. In another arrangement, two levers s, s<1>, Fig. 6, are pivoted to a lug. c on the axle and have rollers h, n bearing on the chassis a, the other ends of the levers being connected by shachles o, i to the ends of an inverted spring f secured to the sole e on the axle. The lengths of the lever arms are chosen as desired, and both may be of the form s, and may be identical, or of the form s<1>. One roller may be replaced by a pivot on the chassis.
Patent GB-189313-A (GB)
Title: Improvements in or relating to perambulators and the like
IPC: B62B9/18
Filed: 1921-10-21
Abstract: 189,313. Sillers, H. Oct. 21, 1921. Springs, arrangement of.-In a spring suspension for perambulators and like vehicles and of the kind in which the suspension springs A on opposite sides are connected together by crossmembers B to minimize side play, and are connected to the body by additional cee-springs disposed out of the plane of the main springs, the additional springs C are secured adjacent or alongside the upturned ends of the main springs A, as shown, by brackets or plates D. The upper ends of the springs C support the body by means of straps E.
Patent GB-837785-A (GB)
Title: Improvements in nuclear reactors
Inventor: TAYLOR ANTHONY JAMES
IPC: G21C5/08
Filed: 1957-09-04
Abstract: 837,785. Nuclear reactors. BABCOCK & WILCOX Ltd. Sept. 4, 1958 [Sept. 4, 1957], No. 27961/57. Drawings to Specification. Class 39(4). The graphite core of a carbon-dioxide cooled nuclear reactor is supported within the pressure vessel, both vertically and laterally. The core normally rests upon a steel platform in the lower part of the vessel. If the reactor becomes inverted, the core is supported on a steel plate, which covers the upper surface, and which rests on the ends of the control rod guide tubes in the inverted position. Lateral movement of the core is resisted by tensioned hoop members which surround the core and which engage the sides of the pressure vessel at resilient support devices. The latter each comprise a piston and gas filled cylinder, absorb displacement forces and allow for expansion of the pressure vessel relative to the core. Each hook member is formed of segments secured together by tubular connections which permit free thermal expansion of the core. In the resilient support devices, a fall in gas pressure, due to leakage, causes the automatic engagement of a mechanical holding device to prevent lateral shift of the core.
Patent GB-1112582-A (GB)
Title: Improvements in or relating to mixers
Inventor: CELLIER JACQUES
IPC: B01F7/16
Filed: 1965-07-01
Abstract: 1,112,582. Mixing machines. CELLIER ETABLISSEMENT. 1 July, 1965, No. 27975/65. Heading BIC. A mixing machine suitable for preparing suspensions of Kaolin in water comprises a helical bladed stirrer rotatable in a tank and deflectors mounted adjacent the tank well and adjustable about a vertical axis. Each deflector comprises a plate 2 spaced from the wall 1 and pivoted at each end to the container by bearings 4, 14. Each deflector is locked in a chosen position by a bolt 17 extending through one of a plurality of holes formed in a plate 9 fixed to the deflector and one of two holes in a lug 13 fixed to casing 1.
Patent GB-1109166-A (GB)
Title: Improvements relating to reversible drive transmission means incorporating a speed-reduction gear train
Inventor: JONES JAMES FRANCIS
IPC: F16H1/22
Filed: 1964-07-07
Abstract: 1,109,166. Toothed gearing. FAIREY ENGINEERING Ltd. 7 July, 1965 [7 July, 1964], No. 27987/64. Heading F2Q. [Also in Division B3] To eliminate backlash in a reduction gear train 11 between a reversible hydraulic driving motor 10 and a vertical or horizontal rack 13 of a milling machine having a static bias in one direction, a constant torque compensating hydraulic motor 28 is geared to the train 11 to balance the static bias of the rack 13. In one direction of rotation of the driving motor 10 the motor 28 provides a resisting torque to balance the static rack bias. With the driving motor 10 stationary the rack 13 is held stationary by the compensating motor 28 which is stationary and supplied with hydraulic pressure from the driving motor supply. The gear train is braked upon loss of hydraulic supply to the motors 10 and 28 by a friction brake having a stationary disc spring biased to engage a disc fast on a pinion of the gear train, and held out of engagement by hydraulic pressure from the motor supply acting on a group of pistons (37).