baber/WOPTO huggingface dataset:
Patent GB-307801-A (GB)
Title: A device for indicating rupture of thread in warping and beaming machines
IPC: D02H13/00
Filed: 1929-03-12
Abstract: 307,801. Reiners, W., (trading as Schlafhorst & Co., W.). March 13, 1928, [Convention date]. Yarns, warping. - Mechanism for indicating rupture of yarn in warping and warp dressing machines comprises an electric lamp common to a group of yarns, and a contact device in the circuit of the lamp controlled by all the yarns in the group and actuated upon rupture of any one of the yarns. Feelers 10, one to each yarn, are pivoted about a shaft 11 common to a group of yarns; on breakage of any of the yarns the corresponding feeler 10 is swung into contact with a plate 12 and closes the circuit to light the lamp 14. Closing of the circuit also operates to stop the machine. The Specification as open to inspection under Sect. 91 (3) (a) states also that the lamp may be replaced by electromagnetic or mechanical devices which may act optically or acoustically. In one such modification engagement of a feeler 10 with the plate 12 energizes an electromagnet and releases a drop plate, which normally covers a coloured indicator. In another modification the feelers 10 are arranged to release a gravity catch which normally hold a drop plate in position over a coloured indicator. This subject-matter does not appear in the Specification as accepted.
Patent GB-578340-A (GB)
Title: Improvements in power transmission belting
IPC: F16G5/02
Filed: 1944-04-29
Abstract: 578,340. Driving belts. FAIRWEATHER, H. G. C. (Schierin Co., C. A.). April 29, 1944, No. 8089. [Class 80 (i)] A V-belt comprises a plurality of layers 1, 2, 3, of leather, secured to each other to form a body portion of trapezoidal crosssection, a thin strip of grain split leather 5 being secured to each side wall to contact the co-operating pulley. The top and bottom of the belt may also be covered with grain split leather.
Patent GB-308467-A (GB)
Title: Improvements in disc record carrying cases
IPC: A47B81/06
Filed: 1928-03-16
Abstract: 308,467. Gramophone Co., Ltd., 308,719. Longford, V. W. March 27, and Knight, E. March 16, 1928. 1928, [Convention date]. Contents, facilitating access to.-A case for carrying disc records comprises a record-supporting tray 5 hinged within the bottom 1 and moved about its pivot 6 when the lid 2 is opened or closed by a pair of levers 8, 10 pivoted together at 9, to the tray at 7 and to the bottom at 11 and connected by a link 13 with the hd 2. The lid 13 has a slot 15 which slides over a pin 16 on the lever 8 as the lid is opened, a lateral extension of the slot 18 falling over the pin 16 when the case is fully open and holding the tray against movement until the lid is closed by hand. The levers move slightly beyond the dead centre position when the case is open and the lever 10 then engages a stud 17 secured to the side wall of the case. A link 19 pivoted on the pivot 9 of the levers has a slot engaging a pin 21 fixed on the tray and, when the case is fully open. an extension of the slot drops over the pin 21 and holds the case against accidental closing. In closing the lid a lug 12 on the lever 10 engages the lever 13 and rocks it to cause the pin 16 to become disengaged from the extension 18 of the slot 15. Contents, delivering. -A cabinet 3 having compartments 2 for holding gramophone records 1 is provided with an index cylinder 4 which can be rotated to expose the name of a required record at a window 5. such rotation serving to move a block 15 carrying a spring member 17 into position behind the required record, so that by operating a handle 21 connected to a swinging board 18, the record is ejected. The cylinder 4 is turned from a handle 11 through pinions 7 - - 10, and the pinion 9 gears with another pinion 12 fixed to a screwed spindle 13 with which engages a nut portion 14 on the block 15, so that the block is moved into position as the cylinder 4 is rotated. According to the Specification as open to inspection under Sect. 91 (3) (a) the cabinet may be used for storing articles other than gramophone records. This subject-matter does not appear in the Specification as accepted.
Patent GB-640710-A (GB)
Title: Improvements in or relating to radio direction finders
Inventor: EARP CHARLES WILLIAM
IPC: G01S3/54
Filed: 1947-03-26
Abstract: 640,710. Radio direction-finders. STANDARD TELEPHONES & CABLES, Ltd. March 26, 1947, No. 8216. Addition to 635,277. [Class 40 (vii)] In a radio direction-finder of the kind described in the parent Specification, the number of aerials in the two perpendicular arrays is made different, whereby it may be arranged that the phase-jumps occurring in the phase-modulated received signals never occur simultaneously for the two arrays. In the parent case, owing to the different frequencies F 1 , F 2  of the switching cycles and the equal number of aerials in the two arrays, the switching operations in the two arrays occasionally occurred simultaneously and in order to maintain the consequent phase-jumps within such limits that the distortion introduced by the non-linearity of the phase-discriminator would have a negligible effect upon the bearing indicator, the aperture of the array was not allowed to exceed 0.71 of the minimum operating wavelength. In the present system the arrays 1, 2, 3, 4 and A, B, C, D, E comprise four and five aerials respectively-and are produced by the projection on to the lines 5 and 6 of the apices of a regular octagon and a regular decagon respectively. The number of commutation intervals per complete switching cycle for the two arrays is consequently eight and ten respectively. The switching frequencies are arranged to be 500 c/s. and 400 c/s. respectively so that in both arrays an interval of 250 microseconds occurs between successive switching operations. The two sets of switching operations are caused to be displaced from one another by 125 microseconds so that switching never occurs simultaneously in the two arrays. On this account the aperture of the arrays may be increased over that in the parent Specification without the phase-jumps in the signal applied to the phase-discriminator being such as to introduce a bearing error. In the case described the aperture of the arrays is increased to one wavelength at the highest operating frequency. Specifications 590,260, [Group XXXVI], 594,530 and 596,699, are referred to.
Patent GB-672403-A (GB)
Title: Improvements in the boring of holes in geological strata and machines therefor
IPC: E21D9/11
Filed: 1950-04-03
Abstract: 672,403. Endless chain conveyers. UNION CARBIDE & CARBON CORPORATION. April 3, 1950. [April 2, 1949] No. 8233/50. Class 78 (i). [Also in Group XXI and XXXI] In a mining or tunnelling machine, the disintegrated mineral is carried back from the cutters in the trough of a scraper conveyer H, the trough comprising two pivotally joined sections, the rear section being capable of rotation about the pivots 101 by hydraulic jacks 102 pivotally mounted on the chassis of the machine.
Patent GB-196236-A (GB)
Title: Ring spinning and twisting machines
IPC: D01H1/02
Filed: 1921-10-03
Abstract: 196,236. Potter, J. C. Oct. 3, 1921. Ring and traveller frames; driving - arrangements; building motions; spindle rails. - A ring- spinning and twisting machine, of the kind wherein ring rails provided with non - rotary rings are stationarily mounted and the spindles are traversed, comprises two sections each having a spindle-carrying carriage, the carriages being connected in counterbalanced relation to each other and driven from a common head. The ring rails are secured by flanges 16 to an angle-bar 13; and the spindle rails on each side of the frame are connected by cross-bars 23, upon which the tin rollers are mounted, so as to form a removable unit which is supported on slides 28 by means of screws 26. The driving-gear for the building-motion and tin roller is arranged between heads 11, Fig. 1, at the middle of the frame, and the slides on each side thereof are reciprocated by a lever 38 so that one is falling when the other is rising. The lever 38 is oscillated by a cam 45, and is connected by sprocket chains with geared shafts 31 on each side of the frame carrying wheels 30 geared with the slides. The building-motion lever is provided with ratchet-gearing of usual construction. The tin rollers are driven from a countershaft pulley 36 by a belt 33, which is tensioned by a pulley 34. Specifications 19106/01 and 195,658 are referred to.
Patent GB-771976-A (GB)
Title: Metal extrusion press
IPC: B21C35/04
Filed: 1955-03-22
Abstract: 771,976. Extruding; shearing. BALDWIN - LIMA - HAMILTON CORPORATION. March 22, 1955 [April 5, 1954], No. 8289/55. Class 83 (4). A press for extruding metal, particularly heated billets of light metal, copper or brass, has a slide 34 disposed adjacent the press platen 10 and movable transversely from the extrusion position, Fig. 2, to an inoperative position, Fig. 5, the movement of the slide being effective for severing the extruded product 32 from the discard 60, 22 and the slide being operated by two separate actuating means one of which 70 is of small power and is effective during the entire stroke of the slide and the other 74 is of short stroke and high power and is effective only during the severing operation. The slide 34 moves in guides 50, 52 on the press platen 10 and has an oblique slot 38 for receiving the extrusion die 30, and an aperture 62 through which an unextruded billet may be ejected from the container by the press ram 14. A double-acting pneumatic motor 70 has its piston-rod 80 connected to an arm 84 secured to the slide 34; this motor moves the slide through its full stroke in both directions. During the severing operation a hydraulic motor 74 is operated, whereby its piston-rod 96 presses on the adjacent end of the slide to cause shearing- of the extrusion 32 between edges 54, 56. Motor 74 may be doubleacting or its piston may be retracted by the return movement of the slide. The stroke of slide is limited in both directions by adjustable stops 102, 108 and the working stroke of the motor 74 may be limited by a stop surface 112, Fig. 3 (not shown), or by limit switches. The press ram uses a dummy block 16 which usually adheres to the discard 22 and is removed therewith in the inoperative position of the slide 34 when the die 30 can also be replaced. In an alternative embodiment the die 30 may be inserted into the container liner.
Patent GB-831524-A (GB)
Title: Improvements in and relating to voltage regulator circuits
Inventor: FARMER WALTER JOHN RENAUD
IPC: H02P9/30
Filed: 1956-03-15
Abstract: 831,524. Automatic voltage control systems. BRITISH THOMSON-HOUSTON CO. Ltd. March 15, 1957 [March 15, 1956: June 25, 1956; Oct. 4, 1956], Nos. 8137/56, 19603/56 and 30296/56. Class 38 (4). The excitation of an A.C. generator is controlled by a transistor control device responsive to the difference between the generator voltage and a reference voltage. The generator output is rectified and applied to a self-exciting field winding 2 via the emitter-collector circuit of transistor 4, the base voltage of which is varied, to control its series impedance, by voltage detector 6 sensitive to output variations. The output voltage is applied through transformer 8 and rectifier 7 to a bridge circuit comprising resistances 11, 12 and Zener diodes 9. 10. The diodes being constant voltage devices, the bridge detects output voltage variations and applies them to the transistor base-emitter via a stabilizing network 13. A non-linear resistance 5 is connected across the transistor for protection against voltage surges. An alternative embodiment has the generator separately excited by a D.C. machine itself controlled by the transistor control device (Fig. 4, not shown) with an added variation of load-current compensation (Fig. 6, not shown). In a further embodiment (Fig. 5, not shown) the D.C. exciter is self-excited by one field winding, but has an opposing field winding subject to the transistor control.
Patent GB-1381593-A (GB)
Title: Telephone instruments
IPC: H04M19/08
Filed: 1971-04-02
Abstract: 1381593 Substation circuits GENERAL ELECTRIC CO Ltd 22 March 1972 [2 April 1971] 8500/71 Heading H4K A subscriber set is described wherein the line is looped via a short circuit between the wires thereof when the handset is lifted to operate the gravity switch contacts, the short circuit being removed after an interval of time which is sufficiently long for loop detecting means at the exchange to have been operated. The arrangement is for use where the subscriber set presents a relatively high impedance to the line such that insufficient current would be shown to operate a loop detecting relay at the exchange, e.g. when the set includes a local battery which is charged over the line when the subscriber is off-hook. A standard telephone subset 1 including a battery charging circuit (12, Fig. 2, not shown) is connected to the subscriber line wires 3. When the hand set is lifted the gravity switch contacts 2, 5 close, the closing of contact 5 causing transistor 7 to turn on and relay 6 to operate thereby looping the line via relay contact 11. When capacitor 10 has charged transistor 7 turns off and the line is then looped via the sub-set circuit 1, this loop including a microphone, a diode bridge forming part of the battery charging circuit and a ballast resistor. The capacitor charging time is made longer than the operation time of a loop detecting relay situated at the exchange and the operation relies on the loop detector having a smaller holding current than operating current. The battery is included for powering ancillary facilities other than the basic telephone requirement of speech transmission, although the nature of the facilities to be powered is not disclosed.
Patent GB-947361-A (GB)
Title: Roof structure
IPC: E04B1/344
Filed: 1961-03-08
Abstract: 947,361. Roof structures for temporary buildings. A. PHILLIPS. March 8, 1962 [March 8, 1961], No. 85l3/61 Heading E1V. A roof structure for a temporary building or shelter comprises spaced pairs of structural members 1 extending upwardly and towards each other, each member being attached, at its lower outward end to a pair of vertical scaffolding members 6, 7 by two swivel couplings 4, 5 spaced in a longitudinal direction of the member, and covering panels 10 overlying and attached to said structural members, the panels 13 along the apex of the roof being permanently hinged together. The structural members 1, which are preferably made of aluminium or aluminium alloy, are spaced apart and joined together by a link 3, which includes two hinge joints to permit the angle of inclination, and thereby the span, of the structural members to be altered without disconnecting the link. The panels are secured by clamps 11.
Patent GB-1284985-A (GB)
Title: Improvements in pendulation control system for suspended loads in transit
IPC: B66C13/22
Filed: 1970-02-23
Abstract: 1284985 Automatic speed control GENERAL ELECTRIC CO 23 Feb 1970 [24 Feb 1969] 8540/70 Heading G3R To reduce swing of a load suspended from a member which is driven in a horizontal direction by an electric motor, motor acceleration is controlled by command signals, feedback signals dependent on motor speed or torque, and selsyn signals dependent on movements of the load suspension from the vertical. In Fig. 1, signals 24, 30 from a command source 36 control the direction and speed of an electric motor 16 driving a crane 14 along horizontal rails (not shown). Speed is stabilized by a first feedback from a tachometer generator 38 driven by motor 16, and swing of a load (not shown) suspended from the crane is decreased by a second feedback from a selsyn 42 operated by a member detecting movement of the load suspension from the vertical. The correct sense of the second feedback is ensured by changeover switches (not shown) operated in dependence on the direction of swing of the load and the direction of travel of the crane. When the crane nears its limit of travel it operates a switch to render the second feedback inoperative. The first feedback may be dependent on motor torque instead of speed.
Patent GB-1023402-A (GB)
Title: Improvements in or relating to apparatus for dispensing liquid under pressure for use for example in the washing of compressor blades of gas turbine engines
Inventor: JUNIPER ALBERT THOMAS
IPC: C23G3/00
Filed: 1964-02-29
Abstract: 1,023,402. Forcing liquid by gaseous pressure. A. T. JUNIPER Ltd. Feb. 19, 1965 [Feb. 29, 1964], No. 8575/64. Heading FIR. In apparatus for supplying washing liquid under pressure to the compressor blades of a gas turbine engine, a container 10 having a closable aperture 15 for the introduction of washing liquid and a container 11 for normally holding air under pressure, supplied by a doubleacting hand pump 27 or by an engine compressor, are mounted on a wheeled trolley 12, 13, 14. The upper portions of the containers are connected by pipes to equalize the pressures therein. A liquid outlet from container 10, connected to dip tube 18, is joined by a pipe to a filter the outlet of which is connected by a flexible hose to a spray ring. The hand pump 27 is detachably connected to an air inlet valve associated with a relief valve on the container 11. Flexible pipes 43 and 44, respectively, are connected at one of their ends to an air inlet on container 10 and the outlet of an air filter 32, connected to an air outlet 30 from the container 11, and at their opposite ends to a dual-port adaptor 45 designed for connection with the engine compressor. The compressor supplies air to the container 10 and excess air is returned through the filter 32 to the compressor. A blanking-off plate 46 is provided for the adaptor 45 when not connected to the compressor. Drain plugs are provided for each container and a bleed valve 29 and a pressure gauge are mounted on container 11. A foot pump may be used in place of hand pump 27. The bottoms of the containers are interconnected by pipes having shut-off valves which are normally closed but may be opened when both containers are to contain washing liquid. The containers may be of welded steel internally tinned to resist corrosion.
Patent GB-1089654-A (GB)
Title: Improved shelf support system
IPC: A47B57/04
Filed: 1966-02-28
Abstract: 1,089,654. Shelves; shelf brackets. H. CARMSTROM. Feb. 28, 1966, No. 8591/66. Heading A4B. A groove 3 with a closed end 5 and an open end 6 is formed in each end of a shelf 1 to slidably receive a support shaft 7 which have bent ends taking in holes 9 in a wall 10. Shafts of different lengths are provided to support the shelf in horizontal or inclined position. A retaining rail 2 and a shoulder 8 to engage an end of the shaft are provided. In modifications the groove tapers from the shoulder end, or the shoulder is formed by a plate secured to the shelf.
Patent GB-717538-A (GB)
Title: Improvements in twist-lace machines
IPC: D04B33/00
Filed: 1952-04-04
Abstract: 717,538. Lace machines. JARDINE, Ltd., J., and JONES, F. H. HASLAM-. May 6, 1953 [April 4, 1952], No. 8611/52. Class 74 (1). The catch bars and point bars of a twist-lace machine are positively operated by cams and counter cams. The catch bars A, A' are connected to arms B, B<1> connected to arms D, D<1> connected by links E, E<1> to spaced points at the upper end of a lever F pivoted at G to the frame of the machine. Lever F is connected by links H, J to a shaft K, oscillated by a V-shaped arm L carrying rollers M engaging a cam N and counter cam N<1>. The joint bars R, R<1> have an arm S at each end. The in and out motion of a point bar is provided by an arm T oscillated by an arm W engaging cams W<2>, W<3>. The rising and falling motion is provided by a link T<1> connected to an arm T<2> rocked by an arm U<2> actuated by a cam and counter cam. The operating mechanism at each end of the machine can be enclosed and arranged to run in an oil bath.
Patent GB-228037-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H33/24
Filed: 1924-04-05
Abstract: 228,037. British Thomson-Houston Co., Ltd., (General Electric Co.). April 5, 1924. Switchboards; contacts.-In order to protect the fixed and movable contacts, usually plug and socket contacts, of exposed air-break isolating switches against accumulations of ice, snow, &c. and, at the same time to minimise corona discharge therefrom each contact is surrounded by a metal hood which may be integral with the contact itself. As shown in the Figure, applied to a truck-type isolating switch, the movable plug contact 2 is surrounded by the, metal hood 10 in conductive relation therewith, and the socket contact 1 is formed, as shown, with a hood portion 6. In the engaged position shown, the hood 10 envelopes the hood 6. The edges of the hoods are rounded off to minimise corona effects. Both contacts may move rectilinearly or one or both may be pivoted to rotate in a horizontal plane.
Patent GB-671382-A (GB)
Title: Composition and process for textile printing
IPC: C09B43/36
Filed: 1949-03-30
Abstract: Textiles are printed with a composition comprising an acylated aminoacedianthrone, a thickening agent, an alkali and a reducing agent.  Examples are given in which cotton is printed, dried, aged, washed, oxidized with potassium dichromate solution and then soaped, the dyes used being (1) the dyestuff obtained by condensing aminoacedianthrone with azobenzene - 4,41 - dicarboxylic acid chloride; (2) benzoylaminoacedianthrone; (3) the dyestuff obtained by mononitrating acedianthrone in sulphuric acid, reducing, and acylating with 1-nitroanthraquinone-2-carboxylic acid chloride and reducing the nitro group with sodium hydrosulphite; (4) the dyestuff obtained by acylating diaminoacedianthrone with 1-nitroanthraquinone-2-carboxylic acid chloride and reducing the nitro group, and (5) dibenzoylaminoacedianthrone.  Specifications 369,765, 410,552 and 441,049 are referred to.
Patent GB-236984-A (GB)
Title: Improvements in or relating to apparatus for making and using decolorizing carbon
IPC: C01B32/336
Filed: 1924-04-05
Abstract: 236,984. Sauer, J. N. A. April 5, 1924. Carbon.-Active carbon is produced in a portable retort comprising a. shaft provided with means for injecting a blast of gas and having a base fitted with wheels. The process of activating granular carbonaceous material described in Specifications 206,862 and 228,582 and also the apparatus described in the latter Specification when made portable may be employed. The retort which may consist essentially of a steel casing, lined with fire-brick or magnesia may be vertical, inclined or horizontal, and an inner tube or frame may be provided to strengthen it. When the inner tube is constructed so that it is not removable it may be made of a resistant alloy. Alternatively the retort itself may be made of such an alloy, a jacket of asbestos being provided. On the retort base may be mounted a generator for producing the activating gas, e.g. gas from liquid fuel such as crude oil or petrol, and also apparatus for predistilling or charring the raw carbonaceous material. The generator may serve both for pre-distilling or charring the raw material and also for supplying the activating gas. In a further modification, the retort may be associated with applicances for water-purifying and for treating the carbon produced. The water-purifying apparatus may comprise an enamel-lined steel container provided with a water inlet and outlet, a porous pot being fitted over the latter. Water enters at the bottom of the container, mixes with the carbon and leaves at the top. To ensure that bacteria are entirely removed the water may also be passed through a suction-filter or a filter-press containing layers of the activated carbon. Carbon specially suitable for this purpose is obtained by treating without subsequent washing the active carbon with acid, e.g. hydrochloric acid in the sterilizing apparatus. When washed with water the carbon after the acid treatment is available for medicinal purposes.