baber/WOPTO huggingface dataset:
Patent GB-240194-A (GB)
Title: An improved thermionic valve holder or adaptor for use in wireless work
IPC: H01R33/74
Filed: 1924-03-25
Abstract: 240,194. Philbrook, A. T., and Sawyer, H. R. J. March 25, 1924. No Patent granted (Sealing fee not paid). Vacuum tubes.-A valve holder or adapter consists of two parts having limited movement with regard to each other, the circuits of the valve being completed at one limit of movement and broken at the other. As shown the holder consists of two parts 5, 6 of which the upper part 5 is formed with holes receiving the valve pins, and is mounted around a central hollow spindle 7. The holes may be bushed with metal. The lower part 6 has holes of two diameters receiving plunger contacts 13 and threaded stems 15 secured to a panel 16. The spindle is splayed at the ends to retain the parts. A pin 9 on the part 5 works in a recess 10 in the part 6 so as to limit the amount of rotation of the part 5. The heads of the plungers are preferably rounded and work in a circular recess so that rotation of the part 5 causes the plungers to break contact with the valve pins 8, and to engage with the insulating material of the part 5. Both high and low tension supplies are thus disconnected. The device may be used as an adapter by forming the stems 15 as contact pins for insertion in an ordinary holder. In a modification the parts 5, 6 are connected together and to the panel by a central bolt of two diameters so that the parts .may be separated forcleaning. In another arrangement a lip on the lower part engages over a flange on the upper part. The stems 15 may project through the upper surface of the part 5 and have open slots communicating with similar slots in the insulating material; the valve pins project into the slots in the stems. In a further arrangement connection with the stems 15 is made by means of threaded pins extending through the sides of the part 6, and the parts 5, 6 are connected by a central bolt, and secured by a stud screwing into the hollow head of the bolt. According to the Provisional Specification the upper surface of holder may be formed with curves, ridges, or depressions so as to prevent wrong insertion of the valve pins.
Patent GB-557917-A (GB)
Title: Gearshifting device, particularly for use with vehicles
IPC: F16H63/30
Filed: 1942-06-04
Abstract: 557,917. Controlling variable gear on motor vehicles. FORD MOTOR CO., Ltd. (Ford Motor Co.). June 4, 1942, No. 7627. [Class 79 (v)] [Also in Group XXIV] In a vehicle having a resiliently-mounted engine 10 and gear-box 11, the gear-shifting lever 16 is non- resiliently mounted on the vehicle and is connected to the gear-box by linkage, there being a substantial amount of play provided between the gear lever 16 and the gear box and a brake on friction device being provided to hold the gear lever against free vibration. In the construction shown the gear lever 16 is fixed to a shaft 20 mounted on the steering column 13, this shaft being slid axially to select a gear and rotated to operate the selected gear in known manner. The lower end of the shaft carries four clutch teeth 26 adapted to engage with some rotary play corresponding grooves in either of two arms 21, 22, so that when the shaft is in the lower position shown in Fig. 2 it is coupled to the arm 21, but when it is slid to its higher position it is coupled to the arm 22. The arms 21, 22 are connected by rubberbushed links 23, 24 to arms 18, 17 in the gear-box 11. The shaft 20 is acted upon by a brake or vibration-damping device comprising a brake disc 30 slidable but non-rotatable on the shaft and pressed into engagement with a fixed brake plate 28 by a spring washer 32 held in place by fixed lugs 33. As the engine and gear-box vibrate on their resilient mounting this movement is transmitted to the arms 21, 22 which rotate the shaft 20 slightly to a position in which the arms will not transmit the vibration, the vibration damper or brake 28, 30 holding the shaft in this vibration-face position. The spring washer 32 is formed with flattened sides so that it can be passed beyond the ears 33 and then rotated through 90 degrees to the position shown in Fig. 4 in which the ears engage notches (not shown) on the washer and hold the latter in position. A tension spring 3 tends to pull the shaft 20 to its lower position in which it is coupled to the arm 21. One or other of the arms 21, 22 is always locked by a pin 27 sliding with the shaft 20 and provided with two grooves adapted to allow only the selected arm to rotate.
Patent GB-548409-A (GB)
Title: Improvements in or relating to the manufacture of power transmission and like belts
IPC: B29D29/00
Filed: 1941-06-18
Abstract: 548,409. Bands. SERRA, J. D. June 18, 1941, No., 7719. Convention date, June 18, 1940. [Class 109] [Also in Groups XXIV and VIII] Relates to driving or conveyer belts of the kind constituted by several superposed layers of fabric or cloth united by rubber, balata or other natural or synthetic plastic material. According to the invention the fabric or cloth, with warp threads 1 and weft threads 2, has holes 3 made therein, e.g. by means of rollers 4, Fig. 2, with spikes 5. Thus treated, the layers are united by the rubber &c. which penetrates into the holes and fills them entirely so as to form throughout the entire body of the belt elastic ribs which assist in holding the various layers together. The holes may be made before or after the layers are united and may also be made in belts which have otherwise been finished and vulcanized in which latter case the holes are filled. with a self-vulcanizing composition.
Patent GB-1393081-A (GB)
Title: Antenna system having a reflector with a substantially open construction
IPC: H01Q19/10
Filed: 1974-02-21
Abstract: 1393081 Aerials HAZELTINE CORP 21 Feb 1974 [25 June 1973] 7847/74 Heading H4A An aerial system comprises one or more radiating elements linearly polarized in a particular direction, such as the array of dipoles 10, arranged in rows and columns, shown in Fig. 1, a reflector made up of conductive columns 11 with interspersed collinear arrays 12 of tuned elements 13, said columns and said arrays being parallel to the direction of polarization, and supporting means for said radiating elements, columns and arrays. The purpose of the collinear arrays 12 of tuned reflective elements is to suppress radiation leakage between the reflective columns 11. In the ease of a planar reflector, back lobe formation is thereby largely prevented (Fig. 4, not shown). As described, the supporting means comprises a frame 14, between two opposite sides of which the columns 11 and the arrays 12 extend, the spacing between adjacent columns being less than one wavelength at the operating frequency of the system. The dipoles 10 are mounted on the columns 11 and are fed by cables which run therein, Fig. 2, not shown. The reflective elements 13 may be lengths of conductive tube mounted on insulating rods and a protective outer tube of insulating material may be provided (Figs. 3a, 3c, not shown). The lengths of, and the spacings between, said reflective elements are made such that each element is effectively a half-wavelength long at the operating frequency of the system. To this end, fixed capacitors may be provided between adjacent reflective elements (Fig. 3b, not shown), of the arrays.
Patent GB-1491827-A (GB)
Title: Railway track tamping machine
IPC: E01B27/17
Filed: 1976-02-27
Abstract: 1491827 Railway ballast tamping machine FRANZ PLASSER BAHNBAUMASCHINEN-INDUSTRIE GmbH 27 Feb 1976 [27 Feb 1975] 07860/76 Heading EIG A ballast tamping machine for simultaneous tamping of the ballast beneath a number of transverse sleepers has three pairs of spreading tamping tools 10, 11, 16, 17, 12, 13 disposed serially in the longitudinal direction of the track. The tamping unit frame 4 is provided with an eccentric shaft system 18 driven by a common hydraulic motor to impart vibration to the tamping tools, the eccentric being pivotably connected to the upper ends of tamping tools 16 and 17 by hydraulic actuators 20, and to the tamping tools 10 to 13 via intermediate supports 8 and 9. Hydraulic actuators 14, 15 and 20 enable the tamping tools to be forced apart and advanced towards the sleepers under which tamping is to be performed. Hydraulic actuator 3 provides vertical adjustment of the frame 4. Adjustment of the spacing between the pairs of tamping tools may be provided in the embodiment shown in Fig. 4, by means of the rack 30 and pinion 29. Tamping tools 21 are arranged to tamp the ballast adjoining the sleeper ends and crib consolidating tools 25 are arranged to tamp the sleeper crib to the rear of the last tamping tool pair 5. Vibrating means 26 for consolidating the ballast shoulder may also be provided.
Patent GB-826724-A (GB)
Title: Improvements in or relating to cold-cathode gas-discharge tubes
Inventor: HILL DENNIS WALTER
IPC: H01J17/44
Filed: 1955-03-17
Abstract: 826,724. Cold-cathode tubes. HIRAC Ltd. Feb. 24, 1956 [March 17, 1955], No. 7863/55. Class 39(1). [Also in Group XXXIX] Self-generated oscillatory noise-voltages in a cold-cathode tube are reduced while retaining an appreciable difference between the striking and maintaining-voltages by constructing the anode as a rod 12 which is sunk within a recess 13 in a glass bead 14 with a ratio of recess diameter to anode diameter lying within the range of 5 : 1 and 2 : 1, and locating the cathode 18 at such a distance from the anode that with the particular gaseous filling and gas pressure employed the anode is first outside the Faraday dark space of the anode-to-cathode discharge. The anode 12 is tipped with nickel and the recess 13 is flared slightly as shown. The cathode 18 is a thin disc of molybdenum or zirconium and is provided with an aperture 24 to permit observation of the discharge. A cylindrical skirt 19 of nickel is secured to the disc 18 by lugs 20 and is welded to two support wires (not shown) connected to bent wire lugs which are embedded in the glass bead 14. One of the cathode support wires is connected to a lead-out wire 23. The cathode may alternatively be hemi-spherical in shape, or may be a disc of smaller diameter than the inner diameter of the skirt 19 so that an annular aperture is provided for observing the discharge. The calorized extension arm 28 of a wire loop trigger electrode 27 passes through a gap 25 in the skirt 19 and is connected to a support lug 29 embedded in the bead 14 and to a lead-out wire 30. The trigger electrode may alternatively be a flat annulus. A gettering element (not shown) is supported below the bead 14 by a wire embedded in the bead. A suitable gas filling consists of 76% helium, 21% neon and 3% argon at a pressure of 70mm. of mercury, or pure helium may be used. The dynamic resistance of the tube may be varied between + 700 and -700 ohms by varying the trigger current, the noise level is more than 50dB below the input signal and has a central frequency of about 250 Kc /sec. A speech transmission circuit employing the tube is described (see Group XXXIX).
Patent GB-677125-A (GB)
Title: Improvements in or relating to pipe joints
IPC: F16L19/08
Filed: 1949-03-23
Abstract: 677,125. Stuffing-box packing, STEVENS A. H. (Chicago Forging & Manufacturing Co.) March 23, 1949, No. 7900/49. Class 122(v) [Also in Group XXVIII] In a stuffing-box joint in which a split anchorage ferrule 20, adapted to grip the pipe 9, lies within a rubber &c. packing ring 15, the ferrule has one or more inwardly projecting portions, and its effective internal diameter when unstressed, is less than the external diameter of the pipe, so that an initial grip is exerted before the joint is tightened One end of the ferrule may have an inturned edge 25. Both ends may be inturned and both may be slotted at intervals to form teeth. An external rib 23 is embedded in packing ring. In another form triangular teeth 25d, Fig. 7, are formed by indenting one end, or teeth 36, Fig. 10, may be punched out of the external hollow rib 32. Square teeth may be punched out at one end only.
Patent GB-1375926-A (GB)
Title: Security container
IPC: H04L9/10
Filed: 1972-02-21
Abstract: 1375926 Theft alarms GAO GES FUR AUTOMATION UND ORGANISATION mbH 21 Feb 1972 [23 Feb 1971] 7902/72 Heading G4N [Also in Division E2] A security container has one or more than one irregularly wound feeble current conductor loops in or on a wall, a current source, and monitoring means to monitor the current so that on disruption of a loop or loops an alarm signal is activated or the contents of the container are destroyed or permanently altered. Open conductor loops may be provided adjacent to closed ones. The conductors may be embedded in plastics foil or may be evaporated or etched on to the foil, the foil being then stuck to the inner walls of the container; several sheets of foil may be stuck together, sufficiently strongly that tearing apart of the foils results in tearing of the conductors. The responses of the plastics material of the foils, the insulation of the conductors, and the material of the container to temperature and acids may also be chosen so as to result in disruption of the loops upon attempted entry using these means. The capacitance between conductors may be monitored, the foils then having conductors evaporated on both sides. The destruction means may include dyes mixed with paper glue dissolving substances, acids, gases, or mechanical destruction means; as described (Fig. 8, not shown) a spark from an ignition coil (34) ignites a propellant charge (36) which opens a partition (39) and forces dye (37) over the contents of the container through rupture points (38). A temperature monitoring device, which may include bimetallic elements, triggers the destruction means outside an allowed temperature range. A time circuit triggers the destruction means after a set interval has elapsed.
Patent GB-1315108-A (GB)
Title: Chrominance amplifier
IPC: H04N9/68
Filed: 1972-02-21
Abstract: 1315108 Automatic gain control; colour television MATSUSHITA ELECTRONICS CORP 21 Feb 1972 [5 March 1971] 7922/72 Headings H3T and H4F A chrominance amplifier consists of a chrominance part and a D.C. amplifier part; the chrominance amplifier part comprises a first differential amplifier constituted by two transistors 14, 15 whose bases are adapted to receive an input signal, and a second and a third differential amplifiers, comprising in the embodiment transistors 10, 11 and 12, 13 respectively, whose emitter currents are supplied through the said two transistors 14, 15. The D.C. amplifier is constituted by two transistors 19, 20, comprising a fourth differential amplifier, their bases being adapted to receive automatic gain control voltages in a differential form, and emitter follower transistors 23, 24 connected with the respective collector circuits of said two transistors 19, 20 of the fourth differential amplifier: the outputs from the fourth differential amplifier are fed in a differential manner through the emitter follower transistors to the second and third differential amplifiers. The collectors of the transistors 19, 20 may also be coupled to a pair of further emitter followers 21, 22 which providea colour-killer output. The Specification also describes what is stated to be a known arrangement (Fig. 1, not shown) in which the automatic gain control signal constitutes the bias on a transistor which forms a variable A.C. shunt on the emitter circuit resistor of a signal amplifier transistor.
Patent GB-1010213-A (GB)
Title: Improvements in or relating to telescopically collapsible umbrellas
IPC: F23M5/06
Filed: 1963-02-27
Abstract: 1,010,213. Umbrellas. A. KORTENBACH, H. J. WORRING, T. SCHULTES, F. WORRING, K. KORTENBACH, and D. WOKKING. Fe b . 27, 1963 [April 25, 1962], No. 7958/63. Heading A4P. [Also in Division F2] A catch, for retaining the telescopic stick parts 1, 2 of an umbrella in extended position, comprises balls 4 urged by a spring 3 to engage in apertures in the stick parts, the spring being bent to V-shape from spring wire and an eyelet 3a formed at each end of the wire to engage one of the balls. In a modification the spring is coiled at 3b to increase the spring force. A locking plunger 5 on a leaf spring 6, which is retained in the stick part 1 by a clamping member 7, bears against the edge of an aperture in a pressed in rib in the outer stick part 2 to prevent separation of the parts of the stick until the plunger is pressed inwards.
Patent GB-567757-A (GB)
Title: Improvements relating to electric dry batteries
IPC: H01M6/22
Filed: 1943-05-19
Abstract: 567,757. Batteries. ALPHA ACCESSORIES, Ltd., and WARDLE, P. B. May '19, 1943, No. 7961. [Class 53] Electrolyte pads for dry cells of the layer type are produced by forming a powdered mixture of dry electrolyte material and a gum into coherent tablets in a tableting machine. The mixture may comprise 40 per cent salammoniac, 30 per cent gum tragacanth and 30 per cent bentonite. The completed cells may be treated in a humidity chamber in order to introduce moisture, or moisture can be added to the individual cells just before assembly. Specification 564,264 is referred to.
Patent GB-177775-A (GB)
Title: Portable treadle-lathe
IPC: D05B75/06
Filed: 1922-03-18
Abstract: 177,775. Coullery, H. March 31, 1921, [Convention date]. Disc apparatus.-In portable treadle-lathes for grinding and polishing and of the type adapted to be clamped to a table &c. and driven through a ratchet and flywheel by means of a rope connected at one end to the treadle and at the other end to a. spring, the headstock is independently supported directly from the floor by means of a telescopic strut and the lathe is easily dismantled for transport. A spindle 6 is rotatably mounted in the headstock 1 secured to the table by a wedge 4, and carries a flywheel 10 and a loose pulley 11, end play being prevented by a sleeve 8 and nose-piece 7. A rope 15, adjustably connected to a treadle 20 by means of a clip 23 on a lever 16 moving with the treadle, is wrapped round the pulley and secured at the other end to a spring 21 hooked to a base-board 26, which also supports the treadle mechanism. The rotary motion of the pulley is transmitted to the spindle by a ratchet gear. The adjustable strut 27, 28, secures the headstock and the baseboard in rigid relationship. The bed 2 may be formed integral with or separate from the headstock, and the latter may be connected to the table by a clamping- screw. A chain drive may be used instead of the rope; or rubber springs may take the place of the steel ones shown, and may be secured adjustably to the strut. The baseboard may consist of a single piece of metal. The Specification as open to inspection under Sect. 91 (3) (a) states that the strut may be in the form of a trellis, but this subject-matter does not appear in the Specification as accepted. accepted.
Patent GB-505240-A (GB)
Title: Improvements in safety guards for collapsible gates
IPC: B66B13/24
Filed: 1938-03-15
Abstract: 505,240. Collapsable gates. SUCH, C. March 15, 1938, No. 7987. [Class 45] A safety guard for collapsable lift gates comprises a series of metal plates la, 1b ... 1h which are slidable one over the other and interconnected in such a manner that the movement imparted to the plate 1h, which is secured to the outer picket 5 of the gate, is transmitted in succession to the other plates except for the plate 1a which is anchored to the side member of the gate opening. As shown, each intermediate plate 1b ... 1g has one or more parallel slots 6a, 7b extending from each edge to beyond the centre, and the end plates 1a and 1h, a slot or slots extending from the free edge to beyond the centre ; pins 8 work along aligned slots of adjacent plates and form the connections between them. The heads of the pins and the edges of the slots are tapered, so that the heads lie flush with the plates. Leaf springs 11 in supporting brackets 9 on the pickets through which the plates slide hold the plates in intimate contact. Slits are formed in the edges of the slots in the plates so that portions of the edges can be bent outwardly to enable the pins 8 to be inserted. The plates are shown mounted at the lower part of the gate to serve as a foot guard, but may be employed, at other parts of the gate.. The guard may be arranged either inside or outside the gate, or both.
Patent GB-492192-A (GB)
Title: Improvements in and relating to tins, cartons and like containers
IPC: B65D43/02
Filed: 1937-03-18
Abstract: 492,192. Lever - lid containers. BARLOW, R., and JACKSON, J. M. March 18, 1937, No. 7991. [Class 66] In a lever-lid container provided with a sealing diaphragm, the lever ring 5 is made of such depth that the flange 6 which receives the lid is in such position that the lid 8 does not project above the ring and does not project downwards sufficiently to distort the diaphragm. The diaphragm is made of parchment paper, soft metal, cellulose film &c. and may provide the sealing means in the double seam 3, 4.
Patent GB-388937-A (GB)
Title: Improvements relating to bearings for shafts and the like
IPC: F16C25/02
Filed: 1932-03-18
Abstract: 388,937. Cylindrical-journal bearings., CAWTHORN, L. S., (trading as SMITH & CO.), St. Luke's Street, Derby. March 18, 1932, No. 8031. [Class 12 (i).] A bearing particularly for pedestal and crank-arm bearings in weaving looms has a U-shaped housing 3 with upper and lower bearing blocks 4, 5 and a cover-plate 8. The latter is pivoted on a screw 10 and has a slot 11 engageable with a screw 9, the screws 9, 10 being screwed to the housing 3. A screw 7 screwed into the plate 8 bears directly on the bearing block 4, or, as shown, on a plate 6, to take up wear of the bearing. In the case of a crank-arm bearing, the housing 3 has an extension 14 which receives the threaded end of a rod 15.
Patent GB-239127-A (GB)
Title: Improvements in or relating to sawing, cutting and similar machines
IPC: B23D51/14
Filed: 1925-03-25
Abstract: 239,127. Beeson, S. E., and Hayes, J. R. S. March 25, 1925. Reciprocating-saw machines.-A saw or knife 10 is reciprocated with one end freely sliding in a supporting guide 12, the other end being clamped to the reciprocating means by a screw 22 and strap 20. A pivoted plate 16 is provided to keep the blade in the guide 12, and a screw 19 for attaching the guide to a support. The work table is fitted with a slotted guide 30 for the blade, and may carry a tilting support for the work adjusted by a screw. In a modified form of guide 12 the distance between the plates forming the slot therein can be adjusted by means of eccentric washers. Balls may be mounted in the guide slot. An air cylinder 33 and pipe 34 are provided for blowing away sawdust.