baber/WOPTO huggingface dataset:
Patent GB-637715-A (GB)
Title: Improvements in or relating to flushing valves
IPC: E03D3/04
Filed: 1946-04-29
Abstract: 637,715. Flushing valves. P.A.G. PATENT-GES. AKT.-GES. April 29, 1946, No. 12797. Convention date, April 27, 1945. [Class 135] A flushing valve opened manually and closed by a spring under the control of a dashpot is provided, in the outlet, with a reservoir in communication with the dashpot cylinder and arranged to be replenished with liquid at each flushing operation. The valve comprises a casing 1 with an inlet 61 and an outlet 51 and housing a ported cylinder 8 providing a seating 11 for a main valve member 27. Screwed into the base of this valve member is a seating 29 for an auxiliary valve member 42 secured to a composite operating rod 40, 43, 44 connected at its upper end to a lever 46 pivoted at 47 in a bracket 10, and at its lower end to a dashpot piston 41 working in a cylinder 14 provided at its lower end with a check valve 64. Operation of the lever 46 opens the auxiliary valve member 42 to release liquid under pressure above the main valve member which enters the cylinder 8 through openings 53, 54, after which an upper shoulder on the auxiliary valve member engages a nut 33 on the seating 29 to open the main valve member and permit the passage of liquid through openings 55 to the outlet. A sleeve 68 closes the opening 54 during the opening of the auxiliary valve member. As the valve members are opened, the dashpot piston is raised, causing the check valve 64 to admit liquid to the cylinder 14 whilst a reservoir 26 surrounding the cylinder 14 is replenished hy the outflowing liquid. Release of the lever 46 causes closure of the valve members by a spring 37 bearing on a sleeve 38, the speed of such closure being determined by the escape of liquid from below the piston 41 through a tapered groove 18, an annular groove 19 and an . axial parallel groove 20. Any escape of liquid through a stuffing-box 36 surrounding the part 43 of the spindle passes through a hole 39 in the sleeve 38 and thence through passages 59, 52, 65 to the outlet. Adjustment of the quantity of liquid discharged may be effected by interchanging the cylinder 8 for one having openings 55, by adjustment of the position of the fulcrum 47 of the lever in slots in the lever and in the bracket 10, or by adjustment of stop screws 66 or 67.
Patent GB-107303-A (GB)
Title: Improvements in Auxiliary Air Admission Valves for Internal Combustion Engines.
Inventor: PARISH CORNELIUS
IPC: F02D9/00
Filed: 1916-09-13
Abstract: 107,303. Parish, C. Sept. 13, 1916. Cylinders, pipes for. -Additional air may be supplied to the mixture from the carburettor by a device consisting of a twopart body portion D, D' connected to the induction pipe by a tube G and containing upper and lower valve-seats, d', d<3>. The upper seat is radially grooved so that, during induction, air is sucked between the ball F and the seat d<2>. The lower portion of the pipe H may be covered with a perforated disk, the holes of which may register with those in a revoluble disk; or, the pipe H may contain a cock J and be jointed to a tube K leading to a sleeve over the exhaust pipe, the air drawn in being warmed in passing between the sleeve and pipe.
Patent GB-956591-A (GB)
Title: Improvements in or relating to branch pipe fittings
Inventor: SLINGSBY THOMAS JOHN LESLIE
IPC: F16L41/10
Filed: 1961-04-11
Abstract: 956,591. Branch pipe fittings. WALTER SLINGSBY & CO. Ltd. March 23, 1962 [April 11, 1961], No. 12994/61. Heading F2G. A branch pipe is coupled to a main pipe by a fitting 1c having a parallel screw-threaded end 2a to screw into the main pipe 3, a resilient sealing gasket ring 22, a rigid pressure collar 21 into which the gasket is partly nested and a lock nut 20 for applying pressure to the collar 21 and compression of the gasket ring. The gasket ring may itself be internally screwthreaded and a retaining ring 23, Fig. 3 (not shown), may be interposed between the gasket ring and main pipe to prevent spreading of the gasket ring. In Fig. 5, the gasket ring has a double taper and is seated in a recessed collar 24 shaped to fit the main pipe 3.
Patent GB-491397-A (GB)
Title: Improvements in or relating to the moulding of composite blocks for building, paving and like purposes
IPC: B28B19/00
Filed: 1937-05-06
Abstract: 491,397. Moulding composite blocks. TAYLOR, A. B. May 6, 1937, Nos. 13015 and 26713. [Class 87 (ii)] [Also in Group X] Building &c. blocks are produced by placing stones in a mould having one or more perforated faces, introducing sand or like removable material through the perforated face to partially fill the spaces between the stones, filling the spaces up with cementitious material, and removing the sand &c. when the cement has set. The stones may comprise pieces of slate or shale and the removable material may be molten tallow, mud, clay, &c. A mould 1, having a layer of stones 4 resting on its perforated bottom is placed in a tray 3 containing molten tallow 6 so that the tallow fills the spaces between the stones. Cement 7 is then poured over the stones and, when this is set, the mould 1 is removed leaving the stones projecting from the cement. In a modification, Fig. 7, the mould 9 has a number of perforated faces and is inserted in a box 12. Sand 14 is tamped in between the mould and box so as to penetrate between the stones 13 which are built up the sides of the mould and cement 16 is poured in. The mould 9 is taken out of the box and the sand is washed off the block.
Patent GB-747231-A (GB)
Title: Improvements in or relating to aerial systems for radio receivers
IPC: H03H2/00
Filed: 1954-05-05
Abstract: 747,231. Aerial coupling arrangements. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE]. May 5, 1954 [May 16, 1953], No. 13050/54. Class 40 (7). The aerial system of a radio receiver comprises an aerial consisting of a ferrite rod carrying a winding A distributed over a major portion of the length of the rod and means for tuning the aerial over the medium and long wavebands. The tuning is effected by means of a variable condenser C which is connected directly across the aerial for tuning over the medium waveband. The operative circuit elements are then as shown in Fig. 1 where valve V is the first valve of the receiver. For tuning over the long waveband the aerial A is connected to the condenser C by means of a step-up transformer T to give the operative circuit shown in Fig. 2. It is preferred that the transformer T be an autotransformer. To adjust the inductances to give desired tuning ranges some of the aerial turns may be wound on a former which can be adjusted in position along the ferrite rod to give the required medium waveband and the transformer T may be provided with a magnetic core adjustable to give the required long waveband.
Patent GB-986821-A (GB)
Title: Control circuit for magnetic amplifiers
IPC: G05F1/33
Filed: 1962-04-05
Abstract: 986,821. Automatic current control. ZAVODY PRUMYSLOVE AUTOMATISACE NARODNI PODNIK. April 5, 1962 [April 6,1961], No. 13085/62. Heading G3R. Also in Divisions H2 and H3] A circuit supplying a load, e.g. an airport lighting system, over a magnetic amplifier is protected against excess current by an overload relay controlling contacts associated with impedances in control windings of the amplifier. As shown,a load 8 in series with an overload relay 4 is supplied over an auto self-excited magnetic amplifier 1 having a control circuit 9, 10 for maintaining constant current output under normal operating conditions. The magnetic ampllfer 1 has a control winding 2 and a biasing winding 3 which are connected to the regulator 9 over impedances 6 and 7 respectively. Normally closed contacts 5a and normally open contacts 5b, both controlled by the overload relay 4, bridge the impedances 6 and 7. If the load current exceeds a predetermined limit, relay 4 operates to open contacts 5a and switch impedance 6 into the control winding circuit and to close contacts 5b and short-circuit impedance 7 in the biasing winding circuit, the arrangement being such that the reactance of the magnetic amplifier is thereby increased so that the load current is reduced to a permissible level. A timelag relay 11, also controlled by the relay 4, operates to disconnect the circuit from the supply if an overload persists.
Patent GB-963184-A (GB)
Title: Anti-friction bearings and alloy steels used therein
Inventor: HAMAKER JOHN CHARLES
IPC: F16C33/12
Filed: 1963-04-03
Abstract: An alloy steel suitable for use in bearings comprises: <TABS:0963184/C6-C7/1> the balance being iron with any alloy impurities. The heat treatment described comprises austenizing at 2150-2250  DEG F. for at least 30 seconds, quenching in warm oil or molten salt at 300-375  DEG F. and then preferably tempering at 1000-1200  DEG F.
Patent GB-132955-A (GB)
IPC: A44B9/18
Abstract: 132,955. Lay, A. E. Dec. 17, 1918. Catches for hinged and like pins.-A device for locking the pin member of a brooch &c. comprises o, ball or cam 25 mounted upon the arm 20 so that it may be made to bear against the pin when in closed position. The ball 25 may be made to slide or may be mounted eccentrically and engaged by rotation; or both it and the arm 20 may be threaded so that it may be screwed into engagement. It may be recessed or may be spring-held in position, or it may be mounted on a sleeve.
Patent GB-662188-A (GB)
Title: Amplification means for telephones
IPC: H04M1/215
Filed: 1949-05-18
Abstract: 662,188. Substation equipment. SOUGET, M. L. M., and BRITISH SURGICAL INDUSTRIES, Ltd. May 18, 1949 [May 18, 1948], No. 13297/49. Class 40 (iv). The upper surface 12 of a cabinet 10 is shaped to support a telephone handset 20, so that speech currents in the receiver 18 induce corresponding currents in a pick-up coil 16 inside the cabinet 10 and these are fed through an amplifier 26 to a loudspeaker 22. It is stated that this arrangement increases the sensitivity of the transmitter 32 so that the user may speak into it from some distance away. The amplifier 26 is provided with negative feed-back to prevent singing, the amount of feed-back being controlled jointly with the gain of the amplifier so that the two may be increased or decreased together. Specification 664,141 is referred to. The Specification as open to inspection under Sect. 91 describes suitable amplifiers of known types, which may be controlled by a switch automatically closed when the handset 20 is placed in operative position on the cabinet 10. This subject-matter does not appear in the Specification as accepted.
Patent GB-1142138-A (GB)
Title: Improvements in or relating to automatic switching arrangement
Inventor: ALLUM ROBIN DEVENISH
IPC: H04Q3/00
Filed: 1966-03-28
Abstract: 1,142,138. Automatic exchange systems. GENERAL ELECTRIC CO. Ltd., and H.M. POSTMASTER GENERAL. 22 March, 1967 [28 March, 1966], No. 13495/66. Heading H4K. In an automatic switching arrangement having a plurality of inputs and a plurality of outputs, and in which one output of a group of outputs (e.g. a P.B.X.) specified by signals received at any input is selected by a circuit which simultaneously receives indications of the busy/free state of each output, a switching network attempts to establish a connection between that input and that output, and means responsive to the failure to find a free route through the switching network to that outlet causes a further free outlet to be selected for the connection. The arrangement described is the final selector stage of an exchange employing switching assemblies (Fig. 12, not shown) of the reed relay cross-point type. Those of the fortyfive inputs 1 from the groups selector, that are taken into use are allotted one by one to a register 5. For each allotment, after the return of a " proceed to send " signal, the last three digits of the wanted directory number and an indication of whether this is a P.B.X. or an ordinary subscriber are entered into the register. Each ordinary subscriber is connected to only one subscriber line 2 while each P.B.X. is connected to a group of up to fifteen subscriber lines 2. A decoder 10 decodes the three digits in the register 5 and enables the line marking relay or relays 9 associated with the called subscriber or P.B.X. Each of these relays when operated completes connections between the private wire of the associated subscriber line 2 and an allocated one of fifteen interrogating circuits 11 to 25 and between a further wire of the associated subscriber line 2 and an output of a line selecting circuit 8 which corresponds to the allocated interrogation circuit. The line selecting circuit (Figs. 2 and 3, not shown) selects the line associated with the most senior interrogating circuit which indicates a free line, sends a " line free " signal to the register 5 and causes the route selecting network 7 to proceed with its selection. If the line free signal is not received within a predetermined time, the register 5 causes a busy tone to be transmitted to the calling subscriber. If the route selecting circuit 7 is unable to find a free route through the switching network 3, it sends a " congestion " signal to the register 5. If the stored indication in the register indicates that an ordinary subscriber is being called an " exchange busy " signal is returned to the calling subscriber. If the stored indication is that a P.B.X. is being called, the register signals a circuit 26 which causes the most senior interrogating circuit 8 which indicates a free line to release. The line selecting circuit 8 then selects a second free line to that P.B.X. and the switching network 3 attempts to find a connection to that line. Thus calls to a P.B.X. are less likely to find the exchange busy.
Patent GB-1135315-A (GB)
Title: Metal laminates
IPC: C09J175/04
Filed: 1966-03-28
Abstract: 1,135,315. Polyurethane bonded metal laminates. AMERICAN CYANAMID CO. 28 March, 1966 [21 April, 1965; 10 June, 1965; 18 Aug., 1965; 21 Oct., 1965], No. 13156/66. Heading B5N. [Also in Division C3] A metal laminate comprises an outer metal bonded by a polyurethane-based adhesive to a perforated or striated metal base layer. In a preferred embodiment, a perforated or striated layer is bonded between two outer layers. The stria may be in the form of small hollows or narrow grooves or channels. Specified metals are stainless steel, carbon steel, aluminium, zinc, gold, galvanized or aluminium coated carbon steel, magnesium, copper, brass, titanium, lead, nickel, silver and nickel alloys. Specified adhesives comprise a mixture of a polyurethane, a diamine curing agent and a diglycidyl ether or ester, and/or an amino-orepoxy-silane, or a polyethylenically unsaturated compound. In a further embodiment, a woven stress-raising member e.g. of metal, polyvinylidene chloride, polyacrylonitrile, polymethyl methacrylate, neoprene coated paper, glass, asbestos, paper or paper coated fibre glass may be incorporated in the adhesive layer.
Patent GB-625346-A (GB)
Title: Improvements in or relating to lamps for vehicles
IPC: F21V17/00
Filed: 1947-05-21
Abstract: 625,346. Vehicle lamps. LIMIT ENGINEERING CO., Ltd., and COLLINS, A. L. May 21, 1947, No. 13690. [Class 75(iv)] In a vehicle lamp of the type comprising a front window and a rear shell enclosing an electric bulb, a structural framework rigid with the front window supports the rear shell and is provided with mounting means for the lamp. An arched metal mid-rib 12 of parabolic shape extends from top to bottom of a metal window frame 11 to form therewith a rigid framework which supports two half shells 25, 26. An apertured lug 45 is formed integrally with the lower part of the mid-rib and serves as a mounting means for the lamp. The half shells are made of thin sheet metal or of thin moulded plastic material and when assembled they form a streamline casing of parabolic shape. The mid-rib 12 is substantially T-shaped in cross-section (see Fig. 3) and has longitudinal grooves 23 receiving the edges 24 of the half shells and a cylindrical boss 32 at the centre of the midrib has a screw threaded passage for the reception of a clamping screw the head 35 of which is recessed on its underside so that it bears only at its rim 37 against the two half shells. The front semi-circular edge of each shell has a lip engaging with a chamfer in the window frame. The boss 32 on the mid-rib also supports a U-shaped springy contact strip 39 which is insulated from the mid-rib and is arranged to engage with the centre contact 42 of a lamp bulb 43 fitted into a sheet metal reflector 17, a flexible wire 44 leading from the strip 39 through a hole in the half-shell 25. The reflector 17 is held in position against a window glass by wire springs 18 which are anchored against abutment surfaces 19 formed on the inside of the mid-rib. Ornaments 15, 47 are formed on the upper and lower front parts of the mid-rib. The lamp bulb may be carried in a focusing holder mounted on the reflector or on the mid-rib.
Patent GB-217232-A (GB)
Title: Typewriting or like machine with automatic return of the carriage
IPC: B41J11/24
Filed: 1924-06-05
Abstract: 217,232. Soc. Anon. Fabrique Nationale d'Armes de Guerre. June 5, 1923, [Convention date]. Carriage - returning mechanism.- In mechanism of the kind comprising a pinion which is constantly in gear with the carriage rack, and can be coupled at will to a motor, coupling is effected by moving the pinion axially to bring projections thereon into engagement with projections on a member driven by the motor. A pinion 5, constantly in engagement with the carriage rack 1, is moupted loosely on a spindle 8 which carries also a loose pinion 7 driven continuously by the motor. The pinion 7 is formed with a boss 9 having screw connection with a collar 10, a spring 11 causing the collar to turn with the pinion. On actuating a carriage-returning key, an arm 12 depresses the pinion 5 in opposition to a spring 16, and a projection 17 on the pinion is brought into the path of a projection 18 on the collar 10, the pinion being thereupon rotated to effect carriage-return. The projections have inclines adapted to interlock and prevent! the spring 16 from raising the pinion 5. When the carriage is arrested, the screw connection causes the collar 10 to descend and release the projections, whereupon the springs 16, 11 restore the pinion 5 and collar 10 to the normal positions. The arm 12 is secured to an arm 15 connected to the carriage-returning key by a member which is adapted to'yield if the projection 18 obstructs the projection 17 when the pinion 5 is depressed. The carriage and the rack 1 may be connected by a yielding spring.
Patent GB-1497244-A (GB)
Title: Electromagnetic vibration-detector devices
IPC: B60R25/10
Filed: 1976-04-07
Abstract: 1497244 Vibration detectors P GUTERMAN 7 April 1976 [23 Dec 1975] 14168/76 Heading H4J An electromagnetic vibration detector comprises a vibratable blade mounted at one end and carrying at its free end a plunger which extends into the interior of a winding, a layer of cellular material being stuck on one face of the blade, said layer having on its free face a sheet of flexible material. The embodiment shown is intended to detect vibrations caused by an attempt to steal a vehicle. The blade 1 carries a synthetic foam layer 7 and a flexible but effectively inextensible plastics sheet 8 which together reduce the bandwidth of vibrations to which the detector responds avoiding false actuation by wind or the clash of bumpers. The plunger comprises a screw 4 the thread of which is said to concentrate the lines of force produced by the magnet 6 and render the detector more sensitive.
Patent GB-150790-A (GB)
Title: Improvements in or relating to means for raising sunken vessels
IPC: B63C7/04
Filed: 1919-06-04
Abstract: 150,790. Finotti, P., and Patrone, A. June 4, 1919. Sunken ships, raising.-Two spaced pontoons A, in longitudinal alinement, are connected by a bridge B having a reinforcing arcuate overstructure B<1> extending to the decks of the pontoons and connected to the bridge by means of truss work D, the bridge and over-structure comprising a number of longitudinal parallel metal beams, each bridge beam supporting lifting-tackle E operated from the pontoons.
Patent GB-204086-A (GB)
Title: Improvements relating to vacuum brake apparatus for railway and like vehicles
IPC: B60T13/46
Filed: 1922-05-19
Abstract: 204,086. Gresham, H. E., and Kiernan, G. May 19, 1922. Fluid - pressure. - Rapid-action valves for vacuum brakes adapted to operate at each successive admission of air to the train-pipe, by the driver to effect a partial application of the brakes, have a restricted passage between the train-pipe and the control chamber for preventing operation of the valve by a gradual admission of air to the train-pipe by the driver, a larger passage being opened for admitting air to the chamber when the valve is opened and for effecting the rapid exhaustion of the chamber when the valve is closed. As shown in Fig. 1, the valve a has a central aperture within which is disposed a fixed plug or partial closure-piece b having a central passage controlled by a ball-valve d. If air is admitted rapidly for a short period to the train-pipe e by the driver, the valve a lifts to admit further air by the inlet h. In the raised position of the valve a larger passage through the valve is provided around the piece b. When the valve re-closes vacuum is rapidly re-established in the control chamber c by way of the valve d. In the construction shown in Fig. 2, a passage f is provided between the train-pipe and the control chamber c and is controlled by a non-return valve d which opens automatically to establish the vacuum in the chamber and is opened by the stem of the valve a when that valve is open. A restricted passage g is provided in the valve d. Fig. 6 shows a valve d arranged in a central passage through the valve a, the valve d opening automatically against the action of a spring i when there is a superior pressure in the chamber c and being opened by a stop w when the valve a is opened. In a further construction, a partial closure-piece resembling that shown in Fig. 1 but without the passage and ball valve is mounted on a spring so that it is withdrawn downwardly through the aperture in the valve a to provide a larger passage through the valve when there is a superior pressure in the chamber c.
Patent GB-374600-A (GB)
Title: Improvements in or relating to cycle pillion seats
IPC: B62J1/14
Filed: 1931-05-14
Abstract: 374,600. Pillion seats. HAWLEY, E., 9, Middlewood Estate, Oughtibridge, near Sheffield. May 14, 1931, No. 14225. [Class 136 (i).] A pillion seat is secured to a mudguard 23 by means of clips each of which comprises a slotted shank 21 bolted to the base 12 of the seat, an arm 21 at right-angles to the shank 21, a clamping plate 26 at or near the free end of the arm 24, and a screw 25 adapted to clamp the plate 26 against the edge of the mudguard. The plate 26 is flanged at each end, the upper flange 23 engaging the beaded edge of the mudguard, while the lower flange 27 may co-operate with a flange 29 on the end of the arm 24. The clamping plate may alternatively be made integral with the arm 24, forming a flexible hook at the end thereof. The seat may be upholstered, or may comprise an endless inflatable tube 18 adapted to be inserted through an opening in a cover 14. The pneumatic cushion 18 may be of the kind described in Specification 358,661, [Group XXI], so.that it may be removed from the cover and used as a swimming belt or life-buoy.