baber/WOPTO huggingface dataset:
Patent GB-1434411-A (GB)
Title: Valve and filter assembly
IPC: B01D35/02
Filed: 1973-04-27
Abstract: 1434411 Valves SOS CONSOLIDATED Inc 27 April 1973 20175/73 Heading F2V [Also in Division B1] A valve-filter assembly for connecting into a pipe-line comprises a housing 12, 50 defining a valve seat 22, with a valve member 24 movable into the out of engagement therewith, and a cylindrical perforate or mesh filter element 62 arranged downstream of the valve. As shown seat 22 is formed in a spider 34 which has a ring part screwed into the housing at 36 and arms 38 and 44 which respectively support a sleeve 40, in which slides valve guide stem 42, and a sleeve 46 in which screws valve-actuating shaft 28. Handle 60 rotates shaft 28 to move valve member 24 axially, and member 24 is rotatably secured to shaft 28 at 30, 32. Plug 70 may be removed to discharge accumulated solids from space 68, possibly aided by reverse flow or forward flow (with the valve open). With valve 22, 24 closed, housing end plate 52 and handle 60 may be removed to enable element 62 to be replaced. Instead of inlet and outlet 14, 16 being horizontally aligned as shown, the assembly could be oriented with inlet 14 vertically above outlet 16.
Patent GB-420390-A (GB)
Title: Microphone
IPC: H04R19/00
Filed: 1933-07-17
Abstract: 420,390. Microphones. NEUMANN, G., 15, Michaelkirchstrasse, Berlin. July 17, 1933, No. 20193. Convention date, July 16, 1932. [Class 40 (iv)] In a microphone, more particularly a condenser microphone, having a thin, slightly stressed membrane, the restoring force of which is mainly determined by air cushions, the fixed electrode is provided both with closed bores of such a diameter and such a size that the air columns situated therein have a natural frequency above the audible range and also with bores which possess a greater volume than the first mentioned bores or are connected with separate air chambers and favour the lowest frequencies by resonance. The Figure shows a construction of condenser microphone in which a membrane 4 consisting of collodion film coated with beaten gold is pasted on the projecting edge 6 of the fixed electrode 5 in such a manner that the metal coating is not electrically connected with the edge 6. The electrode 5 is provided with closed bores 7 and also with a number of bores 7<1> which communicate with an annular chamber 10 closed by a cover 11, the sealing surface 12 of which is formed with a fine spiral groove which allows air to enter the chamber 10 along a long path but prevents all sound waves from passing to the interior of the chamber. The distances between the bores 7 may be varied and the bores 71 may be individually connected with an increased air space. An insulated contact pin 8 is connected with the membrane at 9.
Patent GB-1011977-A (GB)
Title: Improvements in or relating to metal reflectors
IPC: C22C21/08
Filed: 1962-05-25
Abstract: A metal reflector is made by casting a reflector body of an aluminium alloy containing magnesium and/or silicon, polishing, degreasing and treating the body with a glow discharge under vacuum, vapour depositing a film of aluminium on the treated surface and finally treating the deposited film e.g. by anodizing to form an oxide film. The aluminium casting alloys used contain 3% magnesium, not more than 0.6% manganese and not more than 0.3% silicon; or 0.4% manganese, from 12-13.5% silicon; or 1% magnesium, from 0.2-1% manganese and 5% silicon.  The casting is polished, cleaned in trichloroethane at 250-275  DEG C., treated for 10 minutes in a glow discharge and then vapour coated with a layer of aluminium 1.5 microns thick.  The coating was anodized in ammonium tartrate to give an oxide layer 0.1-1 micron thick.
Patent GB-835384-A (GB)
Title: Improvements in door assemblies for garages or the like
IPC: E05F1/10
Filed: 1958-06-24
Abstract: 835,384. Door operating appliances. GARLAND, B. F., PINCOTT, A. W., and CARMICHAEL, R. A. June 24, 1958 [July 1, 1957], No. 20213/58. Class 65 (1) A door is horizontally pivoted near its head at 31 on brackets 22 and counterbalancing springs 33 are secured, adjustably to the bracket, and to the door at 32 between the door pivot and the door head. The door may be retained in the open position by a pin-and-hole device.
Patent GB-873620-A (GB)
Title: Coupling device for connecting one towed vehicle to another
IPC: B60D1/46
Filed: 1957-06-27
Abstract: 873,620. Vehicle hitches. MANNERS, W. Sept. 26, 1958 [June 27, 1957], No. 20255/57. Class 103(5). A hitching device for coupling two vehicles or agricultural machines towed by a tractor, comprises a removable frame constructed from tubular members 1, 4, and 6 and secured by stub shafts 7 and 8 to the chassis C of the forward towed vehicle, a hook 12 secured by bolts 14 in a vertically adjustable position to carrier plates 11 pivoted to a shaft 5 joining the tubes 6, and a hydraulic single acting cylinder 22 pivoted at 23 to frame bars 2 and operating a piston 24 pivoted at 25 to the plates 11. Plates 13 guide the mating half of the coupling are each fixed at one end to the hook 12 and are supported at their other ends by links 18 secured to brackets 17 welded to tubes 20, the tubes 20 being each secured at one end to a carrier plate 11 and at their other ends to arms 21 pivoted on the stub shafts 8. In operation, the vehicle mounting the hitch is backed towards the vehicle to be coupled until the ring at the end of the supported draw bar T is over the hook 12. The cylinder 22 is then actuated by the tractor driver and the hook and ring raised to the chain line position shown in Fig. 3 where a spring catch may be provided on the frame to lock the assembly in the coupled position The lowering of the hook and guide plate assembly and uncoupling takes place under gravity, but this action may be assisted by spring means. In an alternative construction the guide plates 13 may be mounted on the frame.
Patent GB-1447605-A (GB)
Title: Olefin polymerization catalyst peparation
IPC: B01J23/26
Filed: 1974-05-08
Abstract: 1447605 Polymerisation catalysts PHILLIPS PETROLEUM CO 8 May 1974 20290/74 Heading B1E [Also in Division C3] Catalysts are made by adding an aqueous alkali metal silicate solution to an aqueous acid solution, aging the hydrogel which is formed washing the aged hydrogel, adding a hexavalent chromium compound (or a compound convertible thereto upon calcination) to the hydrogel before, during or after aging, removing water from the chromium-containing hydrogel by contact with a water-soluble oxygen-containing organic liquid to form a xerogel and calcining the xerogel. The chromium compound may be added in aqueous solution or dissolved in the organic liquid and extra may be added after formation of the xerogel. Titanium may be incorporated by adding a titanium compound to the aqueous acid solution.
Patent GB-935821-A (GB)
Title: Improvements in or relating to machines for washing dishes, fruit and vegetables
IPC: A47L15/23
Filed: 1958-06-25
Abstract: 935,821. Washing fruit and vegetables. G. W. USHER. Sept. 24, 1959 [June 25, 1958], No. 20299/58. Class 28 (2). [Also in Group XXIII] In a machine for washing dishes, fruit and vegetables water is supplied via an inlet pipe 15, having a gap surrounded by a strainer 17 within a tank 7, to a pump 8 to be discharged through a reaction type rotary spray unit 18 on to the articles to be washed, which are contained in a tray (not shown) supported on rails 5. The pump 8 is started when the level of water in the tank 7 is raised sufficiently to close a float operated switch energizing the pump motor. The sprayed water is returned to the tank 7 via a strainer 9, and when the water overflows through pipes 14, 10 the supply to the inlet pipe 15 is cut off. To discontinue the washing operation an apertured sleeve within the outlet pipe 10 is rotated by a handle 11 to align apertures in the pipe 10 and sleeve, respectively, to drain the tank and open the float-actuated switch to stop the pump 8. The handle 11 may be adjusted to vary the rate of drainage and thus the period which elapses before the switch is opened.
Patent GB-884199-A (GB)
Title: Method and apparatus for forming individual wrapped pads from otherwise continuous batt strips
IPC: D21D1/32
Filed: 1959-06-15
Abstract: 884,199. Making pads of fibrous batt material; cutting webs. JOA, C. J. June 15, 1959 [June 16, 1958], No. 20374/59. Drawings to Specification. Classes 31 (1) and 96. The machine described and illustrated is the same as that of Specification 884,198 but the claims include methods of making the wrapped pads. Specifications 884,191 and 884,195 also are referred to.
Patent GB-202320-A (GB)
Title: Improvements in radio receiving systems
IPC: H04L27/06
Filed: 1923-08-11
Abstract: 202,320. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Ranger, R. H.). Aug. 12, 1922, [Convention date]. Thermionic detectors; atmospherics, eliminating or limiting.-In order to reduce interference from atmospherics. potentials arising from the incoming signals are applied in phase opposition to the grids of two valves, the signal indicator being connected between the plates of the valves. One only of the grid circuits includes a condenser and leak resistance so as to give cumulative rectification. The input potentials applied to the valves may be of audio-frequency derived by rectification, heterodyning, &c. from the incoming waves, and the signal indicator may be a syphon recorder or recording galvanometer. The Specification as open to inspection under Sect. 91 (3) (a), refers also to the arrangement shown in Fig. 1 (Cancelled), in which the aerial is coupled to a coil 5, which has its ends both connected through condensers and leaks to the grids 6, 7, and has its mid-point connected to the filaments. The plate circuits include the battery 15 and telephone 16. A signal s, Fig. 2, consisting of a considerable sequence of waves, produces a plate current a in one valve and b in the other, their combined effect c being a net reduction in telephone current. On the other hand, an atmospheric, comprising a rapidlydamped impulse of high initial value, is almost balanced out. This subject-matter does not appear in the Specification as accepted.
Patent GB-770982-A (GB)
Title: Relay regenerator device for telegraph signals
IPC: H04L25/04
Filed: 1955-07-15
Abstract: 770,982. Telegraph regenerative repeaters. COMPAGNIE INDUSTRIELLE DES TELEPHONES. July 15, 1955 [July 26, 1954], No. 20528/55. Class 40 (3). Start-stop telegraph signal combinations in a five-unit code received by relay TR over line RON are retransmitted over line TR by relay TT under the control of a resonant armature L of the type described in Specification 733,216, [Group XXXVI]. The armature has a half period equal to a signal element (20 milliseconds) and rests alternately on contacts 01 and 02 for approximately this period.. Each contact is connected to an auxiliary relay D1, D2 through a contact D11, D21 of the same relay, and the action of the armature is to sample and transfer the condition of the receiving relay contacts to the appropriate coil 1 or 2 of the transmitting relay during the brief moment (approximately 1 millisecond) separating the closing of contact O1 or 02 by the armature and the operation of the corresponding auxiliary relay. Operation of the apparatus is initiated by the brief closure of key K. This energizes relay S over winding 1 which in turn energizes the starting coil OSC of the resonant armature via contact S1. The armature which normally rests in a mean position is thus brought against contact O1 where it rests, holding relay S operated over coil 2, in a circuit including the receiving relay contacts. Upon receipt of a start signal, relay S releases with a 10 milliseconds delay determined by resistor r2. Starting coil OSC is then de-energized and the armature L starts vibrating. Since the half period corresponds to 20 milliseconds, the subsequent sampling actions take place approxi- .mately at the theoretical centres of the signal elements. A counter comprising five relays R1-R5 operates at each sampling action, the relays operating in turn and holding over contacts R11, R22, R32, R42 and R55. At the sixth sampling action corresponding the fifth signal element, relay S is re-operated over a circuit prepared via contact R52 and R54 and at contact S1 releases relays R1-R4. Relay R5 remains held in a circuit including contact 02 and releases at the seventh sampling action when the armature moves to contact O1. The closure of contact R51 then re-energizes the starting coil OSC via the operated contact S1 and the apparatus resets with the starting coil and relay S energized and the remaining relays de-energized ready for a subsequent start signal. A counter C operated from a contact of relay R5 is included to register the number of signal combinations retransmitted.
Patent GB-304103-A (GB)
Title: Improvements relating to road cleaning vehicles
IPC: E01H1/10
Filed: 1928-07-16
Abstract: 304,103. Radermacher, J. July 16, 1928. Scraping-machines; surface treatment with liquid materials.-A road cleaning device of the kind in which an inclined water-spraying pipe a is pivoted at x to a vehicle frame, has a squeegee or scraper d arranged in front of the spray pipe to form a gutter for the streams of water from the nozzles which emerge below the upper surface of the squeegee or scraper. In the form shown, the device is arranged at the front of a motor vehicle, the scraper being in overlapping sections carried by arms f pivoted on a shaft g. The ends of the pipe a are fitted with pivoted nozzle pipes l, and an additional spraying nozzle m is provided discharging along the gutter formed by the scraper. In a modification, an ordinary spray pipe is arranged at the front of the vehicle and the device is mounted on a trailer and can be raised and lowered by screw gearing.
Patent GB-253749-A (GB)
Title: Improved pocket-size phonograph
IPC: G11B25/04
Filed: 1925-08-17
Abstract: 253,749. Jacobson, J. Aug. 17, 1925. Cases; tone-arms; turntables.-A portable gramophone, of pocket size, comprises a casing made of two hinged portions 1, 2, the portion 1 constituting a closed compartment containing the spring motor, whilst the other 2 has arranged therein a movable plate 12 on which is mounted a telescopic tone-arm 14, 15. The plate 12 is normally placed flat against the bottom of the compartment 2, but is held in raised position when the machine is to be used, by means of an arm 16, pivoted at 16<1> on the plate and engaging over flanges 13 on the edges of the casing as well as under tongues 18 on the plate. A door 19 is provided in one side of the part 2 of the casing, and, though normally held closed by a spring, is kept open when the plate 12 is raised by pins 20 on the free end of an elastic arm 17 which is mounted on the pivot 16<1>. The pins project through the plate 12. With the door 19 open and the plate 12 raised, the compartment 2 forms a sound-amplifier. A record is mounted on a hub 6 at the projecting end of a spindle 5, driven by the motor, the record being clamped by a washer 7 and nut 8.
Patent GB-484183-A (GB)
Title: Improvements relating to bicycle wheels
IPC: B60B21/06
Filed: 1936-07-27
Abstract: 484,183. Vehicle wheels. BELLANCOURT, G. L. July 27, 1936, Nos. 20746 and 20747. Void. Convention dates, July 26, 1935 and Oct. 9, 1935. [Classes 144 (i) and 144 (ii)] A hollow cycle wheel comprises two metal rings 1, 2, Fig. 3, which overlap along their peripheral edges 3, 4 and which are secured together by welding said overlapping portions. The outer member 1 is formed with stamped conical seats 5 for the heads 6 of the spoke nuts. In the modification shown in Fig. 9, the outer ring 10 comprises a central web 11 which bears upon the inner ring 13 to provide a structure possessing greater rigidity. In a further modification, Fig. 10, the rings 20, 24 are formed initially with lateral flanges 22, 23, respectively, which are welded together and then bent over to enclose a peripheral recessed portion 21 in the outer ring. In a third modification, Fig. 12, the peripheral edges 27 of the inner ring 26 are folded over to engage the edges of the outer member 25. In order to prevent overheating of the rim due to braking, the inner component of the rim may have a number of ventilating holes drilled therein.
Patent GB-597316-A (GB)
Title: Improvements in heat exchange rudders
IPC: B63H25/38
Filed: 1945-08-14
Abstract: 597,316. Heat-exchangers. JUTTE, W. B. Aug. 14, 1945, No. 20877. [Class 64 (iii)] [Also in Group XXXIII] The rudder of a ship is used as a surface for cooling the engine coolant. It has internal baffles 34, 35 which are perforated at alternate ends at 36, 37 to make a circuitous passage for the liquid. This liquid enters and leaves the rudder by the hollow stock 19, 21. In modifications the rudder is fitted with horizontal external fins or corrugations, or with horizontal internal tubes, and if desired vertical tubes, through which the water may flow.
Patent GB-443410-A (GB)
Title: Improvements in or relating to reciprocating mechanism of machine tools or other machines having a reciprocating table
IPC: B23Q5/033
Filed: 1935-07-23
Abstract: 443,410. Engine valve-gear. FORTUNA-WERKE SPEZIALMASCHINEN - FABRIK AKT.-GES., Cannstatt, Stuttgart, Germany. July 23, 1935, No. 20904. Convention date, July 23, 1934. Addition to 379,979. [Class 122 (ii)] [See also Groups XXIX and XXVIII] The invention of the parent Specification is modified by replacing the auxiliary piston and its associated throttle valve by two valve pistons 13, 13<1>, normally pressed by springs 28, 29, into contact with adjustable stops 15, 16. When the reversing valve 10 has been moved into an end position, so that the pressure fluid flows through the pipe 8, the valve 13 is moved to uncover the pipe 5 against the action of the spring 28, and the resistance due to liquid being forced through a port 31 into a reservoir 30. The working piston 2 is thus operated, the exhaust fluid opening a valve 24 and passing to the pipe 9. Reversal of the valve 10 causes the valve 131 to be moved to uncover the pipe 6, the valve 13 being returned to its initial position by the spring 28. During its return, liquid returns rapidly from the reservoir through a lightly loaded valve 33. If desired, the ports 31, 32 may be replaced by slots in the valves 33, 34 or their seats.
Patent GB-748079-A (GB)
Title: Improvements in or relating to die casting machines
IPC: B29C45/70
Filed: 1952-08-20
Abstract: 748,079. Casting-machines. GASTROW, H. Aug. 20, 1952 [Aug. 24, 1951], No. 20956/52. Class 83 (1). [Also in Group V] In a machine for casting under pressure, the dies are closed and moved, together with the injection cylinder, towards a fixed plunger arid the die-closing forces are taken up by a frame which is movable on the guide-bars of the machine. To close the mould die-holder 16, slidable in guide-bars 4, is advanced towards die-holder 13 (dies not shown), by a hydraulic double-acting cylinder 2 connected to a fixed injection-plunger 3 by the guide-bars 4 and frame 5. The mould-clamping forces are taken by a frame 6 slidable upon the guide bars 4 and provided with inclined surfaces 14 against which are thrust clamping-wedges 15. The wedges are mounted by roller bearings 23 upon a slidable-carriage 21 and are actuated by links 25 connected to the end of the plunger 1. The die-holder 16 is connected to the carriage 21 by four shafts 18 whose lengths may be simultaneously adjusted by rotation of a central gear-wheel on the carriage 21 which engages the ends of the shafts 18. Die-holder 13 is attached to the slidable frame 6 and bears, upon advance of the frame, against an adjustable member 28 of the slidable injection-cylinder support 29. Continued movement of the frame 6 forces the injection cylinder 27 over the fixed plunger 3. Upon opening movement of the plunger 1 the clamping wedges 15 release the die and the carriage 21 moves backwards until it strikes stop members 7 of the frame 6. Thereafter the carriage 21 and frame 6 move together. The die-holder is connected to the support 29 by rods 35 which allow separation of the nozzle and the corresponding die as the mould is opened. A safety device comprises two switches 39, 40, the first of which closes as the wedges 15 reach their final locking position and the second of which opens when the heating-cylinder support 29 moves rearwardly. If the mould is closed with residual pieces of the casting between the dies, the frame 6 will be moved against the support 29 before the wedges 15 have reached their extreme position, and switch 39 will still be open. Switch 40 also opens upon movement of the support 29 and the opening of both switches causes the machine to be switched over to opening movement. This arrangement also provides protection against incorrect adjustment of the spindles 18.
Patent GB-1469423-A (GB)
Title: Fluoroalkyl ethers
IPC: C07C43/12
Filed: 1974-05-13
Abstract: 1469423 Difluoromethyl fluoropropyl ethers BAXTER TRAVENOL LABORATORIES Inc 13 May 1974 [25 June 1973] 21057/74 Heading C2C [Also in Division A5] Novel difluoromethyl 2,2,3,3,3-pentafluoropropyl ether is prepared by reacting 2,2,3,3,3- pentafluoropropanol with chlorodifluoromethane in the presence of a strong alkali. Novel difluoromethyl 1,1,2,3,3,3-hexafluoropropyl ether is prepared by reacting dichloromethyl 1,1,2,3,3,3-hexafluoropropyl ether with bromine trifluoride (monochloromonofluoromethyl 1,1,2,3,3,3 - hexafluoropropyl ether may be obtained as a by-product). Dichloromethyl 1,1,2,3,3,3 - hexafluoropropylether is prepared by reacting methyl 1,1,2,3,3,3- hexafluoropropyl ether with chlorine under ultraviolet irradiation. Trichloromethyl 1,1,2,3,3,3 - hexafluoropropyl ether and monochloromethyl 1,1,2,3,3,3 - hexafluoropropyl ether may be obtained as by-products in this reaction.
Patent GB-836061-A (GB)
Title: An improvement in or relating to selector mechanism for variable-speed gearboxes
Inventor: TAYLOR ALEC
IPC: G05G9/06
Filed: 1957-07-04
Abstract: 836,061. Change-speed control. BROWN INDUSTRIES Ltd., D. July 2, 1958 [July 4, 1957], No. 21134/57. Class 80 (2). To facilitate engagement of intermediate ratios in a gear-box providing seven speeds and reverse, a manual gear-shift lever 11 is guided by a fixed gate 10 having a central slot with four pairs of aligned speed slots spaced along it, and a baulking plate 12 is slidable in guides 13 of the gate and is provided with an opening indicated by hatching in the drawing. In the position of plate 12 shown, lever 11 can move along the central slot only as far as the 2nd and 3rd speed slots. Movement of lever 11 to the 2nd gear position leaves the position of plate 12 unaltered, but on movement into the 3rd gear position the lever contacts the plate and moves it to the right to a position in which the lever can be moved along the central slot only into alignment with the 4th and 5th speed slots. Movement of the lever into the 5th speed slot moves the plate to the left and enables the highest gears to be engaged.
Patent GB-136638-A (GB)
Title: Improvements in or relating to the Construction of Spars for Aircraft.
IPC: B64C1/06
Filed: 1918-12-18
Abstract: 136,638. Boulton & Paul, and North, J. D. Dec. 18, 1918. Planes, construction of; framework -Metal spars are constructed of side strips 3, 4 having inwardly - extending central vertical portions, each strip, above and below such central portions, being bent outwards and then vertically, and its edges flanged and returned as at 5 to form grooves for the reception of the edges of longitudinally corrugated top and bottom strips 1, 2, which are secured to the webs 3, 4 by riveting or welding. The central corrugation of the strips 1, 2 preferably curves inwardly, and inwardly flanged holes are formed in the central portions of the strips 3, 4. Drift struts may be fitted in the flanged holes in the strips 3, 4, these drift struts being provided with collars and lugs to take lift-wires, interplane struts, and incidence wires as described in Specification 130,428. Plates 9, one of which has lugs 10 for interplane bracing-wires, are secured en both sides of the spar.