baber/WOPTO huggingface dataset:
Patent GB-175391-A (GB)
Title: Improvements in or relating to tip-up seats
IPC: A47C7/58
Filed: 1920-11-12
Abstract: 175,391. Reynolds, A. S., and Reynolds, J. H. Nov. 12, 1920. Hings pins. - To facilitate assembling or removal of individual tip-up seats in theatres &c., the seat pivot pins 1 are arranged so that they can be moved longitudinally into and out of their bearings 5 by toothed operating-studs 7 engaging teeth on the pivot pins.
Patent GB-1191667-A (GB)
Title: Improvements in or relating to a Fluid Distribution Valve
Inventor: KIRK COLIN JOHN
IPC: F15B21/02
Filed: 1966-07-16
Abstract: 1,191,667. Machine tool details. MARTONAIR Ltd. 25 Sept., 1967 [16 July, 1966], No. 32042/66. Heading B3B. [Also in Division F2] A fluid distribution valve for the sequential operation of machine elements as described in Specification 1,191,666 comprises a spindle 120 supporting a rotor 132, a first passage 97, 138 formed in the spindle and communicating with a first gallery 139, a second passage 67, 140 formed in the spindle and communicating with a gallery 141 axially spaced from the gallery 139, sealing means 142 between the galleries, a non-rotary member 124 with a first and second series of ports 153, and 154, respectively, a first passage 144, 146 formed in the rotor and communicating the gallery 139 with a selected port in the series 153, a second passage 145, 147 formed in the rotor and connecting the gallery 141 with a selected port in the series 154, sealing means 149 and 150 between the members 132 and 124 for sealing the first and second rotor passagss respectively, and indexing means, e.g. a ratchet 90 and pawl 89 moved by a fluid piston 87 controlled by a spool valve, to rotate the rotor in angular increments. The rotary member 132 has position indicators marked on its face, that can be viewed through an aperture 168 in the member 124. The stationary member 124 and a bearing plate 129 may be disposed annularly about the member 132. In Fig. 4 (not shown) a slide valve (176) operates in a slot (201) in a cylinder 81 to control flow through a line 179, and is actuated by the piston 87 via a piston rod 88 and rivet shank 157.
Patent GB-401113-A (GB)
Title: A holder for fishing flies, lures or the like
IPC: A01K97/06
Filed: 1932-11-14
Abstract: 401,113. Fishing. BAKER, E. P., Dickhurst, Haslemere, Surrey. Nov. 14, 1932, No. 32171. [Class 48.] A fly-holder comprises a cork base 1 and an oil pad 5 which is secured in a metal container 3. The holder is held in the buttonhole by a stud 9. When not in use the holder is housed in a drawer and shell container. The stud 9 projects through a slot 13 and is used to open the drawer 14 in which the holder is held by a spring 15.
Patent GB-1435150-A (GB)
Title: Hydraulic ejector in injection moulding machines
IPC: B29C45/00
Filed: 1973-07-05
Abstract: 1435150 Ejecting injection moulded articles MASCHINENFABRIK UND GIESSEREI NETSTAL AG 5 July 1973 [5 July 1972] 32182/73 Heading B5A In an injection moulding machine having a hydraulic piston 16 and cylinder 1 for operating an ejector (not shown) the stroke of the ejector can be varied by turning a head 15 secured to the piston 16 whereby a sleeve 10 and insert ring 8 are displaced axially, rotation of the sleeve 10 and ring 8 being prevented by keys 9 on the ring 8 engaging in grooves 7 in a guide bush 5. The piston 16 extends through and is fixedly connected to an adjusting bush 13 which is threadedly engaged in the sleeve 10. An inner face B of a sleeve 23 seated in cylinder 1 serves as a stop for the end face A of sleeve 10. The cylinder 1 is mounted in a hollow piston 4 of a mould closing unit. The ejector (not shown) is connected to a threaded bore 22 in the piston head 15.
Patent GB-1310000-A (GB)
Title: Honing devices
IPC: B24B5/04
Filed: 1970-07-02
Abstract: 1310000 Grinding HERMANN HEYE 15 June 1970 [2 July 1969] 32206/72 Divided out of 1293859 Heading B3D A device for honing convexly prominent portions of workpieces comprises a rotary table 31 for mounting a workpiece 30, at least one tool 37 mounted in a holder 39 and pressed against the workpiece by an adjustable spring 40, the holder being secured to an arm carried by a shaft 46 oscillatable by a motor 48 in the direction of the arrow 50. Each tool consists of a plurality of honing stones 65, 66, 67 of different grit and the support 57 for the shaft is movable in the direction of the arrow 62 by a screw 60 driven by a motor 59 so that the stones, which have successively finer grits, are sequentially engaged with the workpiece.
Patent GB-382096-A (GB)
Title: Improvements in or relating to fabrics for use in the manufacture of double collars or cuffs and double collars or cuffs made therefrom
IPC: A41B5/00
Filed: 1931-11-20
Abstract: 382,096. Collars and cuffs; woven fabrics. HARTLEY, W. D., Kinnaird House, Pall Mall East, London. Nov. 20, 1931, No. 32255. [Class 141.] Collars and cuffs are made from woven fabric intermediate in character between single-ply fabric and multi-ply fabric, a portion being woven so that the fabric as a whole is foldable about this portion. The fabric comprises one layer or ply in which the warp and weft threads are interwoven in known manner and a series of additional weft threads are spaced apart from the weft threads of the first layer by packer warp threads but united to the first layer by binder warp threads. As shown in Figs. 1 and 2, the weft threads 1 and warp threads 2 are interwoven as usual and a series of additional weft threads 3 are spaced from the threads 1 by packer warp threads 4 and united with the first layer by binder warp threads 5. A fold line may be formed at 6 by the omission of the packer warp threads 4 or by the use of thinner warp threads over this portion. Other methods of obtaining a fold line may be employed such as by the omission of the packer warps or by the use of thinner warps over the whole of a portion of the fabric to one side of a predetermined line.
Patent GB-189470-A (GB)
Title: Improvements in rotor windings for dynamo electric machines
IPC: H02K17/16
Filed: 1922-11-25
Abstract: 189,470. Ateliers de Constructions Electriques de Charleroi. Nov. 26, 1921, [Convention date]. Coils and conductors.- The ends 3 of the conductors of a squirrel-cage rotor winding are secured in the short-circuiting rings 4, by means of key members which force the rings into contact with the conductors. In one construction, Fig. 2, the keys are in the form of tapered pins 7 which are inserted in holes 6 in the teeth 5. The conductors 3 may have longitudinal grooves opposite the holes 6, into which the soft metal of the teeth is forced by the pins. Fig. 5 shows a modification in which the teeth 5 have slots 6<1>. In another modification, the keys are rectangular and are inserted between a conductor bar and a tooth. The tooth may be flanged at the periphery to retain the key against centrifugal force. The short-circuiting rings may be in several segments, as in Fig. 5, and they may consist of segmental metal stampings as shown in Fig. 8, the keys 10 in this case being also rectangular. In the lastmentioned construction, the joints between the segments are placed out of alignment.
Patent GB-1351022-A (GB)
Title: Photographic camera
IPC: G03B17/42
Filed: 1971-07-09
Abstract: 1351022 Shutter and transport mechanism EASTMAN KODAK CO 9 July 1971 [9 July 1970] 32326/71 Heading G2A A camera has a reciprocable slide which during a first advance-and-return movement actuates the shutter-cocking means and during a second such movement actuates the film transport. As shown, the slide 1 is mounted in the camera for movement in direction A against the action of a spring 4. As it moves, a lug 5 on slide 1 engages against a lug 6 on another slide 7, so carrying that along also in direction A against a spring 10. The forward end of slide 7 is bent upwards, and when the slide has moved into the position shown in broken lines, the end 11 of a spring-loaded pawl 12 latches behind the bent-up end and holds the slide in that position. At the same time a further lug 13 on slide 7 engages a lug 14 on a shutter member 15 which in turn engages a lug 17 on a second shutter member 18. Thus both shutter members are also carried along in direction A against their respective springs. When slide 1 is released, it returns to its original position under the action of spring 4. Slide 7, however, does not return, since it is held by pawl 12, and hence the shutter members 15, 18 also remain behind in the cocked position Fig. 2 (not shown). A further slide 23, on which a spring-loaded lever 21 is pivoted, takes no part in this first advance- and-return movement of slide 1. At the end of the first return movement, however, the lever 21, which has been held in the Fig. 1 position by a lug 27 on slide 7, is now free to take up the position of Fig. 2 (not shown) since slide 7, and hence lug 27, has been moved away. In this position the end of lever 21 now extends into the path of lug 5 on slide 1. Thus as slide 1 moves in direction A for the second time, it now entrains lever 21 and hence slide 23 to move with it. A rack portion 28 of slide 23 engages and actuates a gear train 29, 30 to rotate a film spool 32, hence winding on the film 33. When the shutter release button is pressed, pawl 22 is pivoted out of engagement with slide 7, which returns under spring 10. Shutter member 15 returns under spring 16, so uncovering the exposure aperture 36, and shutter member 18 also returns, to terminate the exposure, after a suitable delay by means not shown.
Patent GB-700238-A (GB)
Title: Circuits employing semiconductor amplifier devices
IPC: H03F3/387
Filed: 1949-12-16
Abstract: 700,238. Semi-conductor circuits. WESTERN ELECTRIC CO., Inc. Dec. 16, 1949 [Dec. 24, 1948], No. 32332/49. Class 40 (6) A transistor circuit arrangement in which the current amplification factor a is greater than unity, has an external network interconnecting the base emitter and collector electrodes with a common junction point, and an impedance element is connected between the base electrode and the common junction point so as to provide a positive feedback of energy between the collecto and emitter circuits. The invention is applicable to either an oscillator or a regenerative ampli fier. Fig. 1 shows a " grounded base transisto oscillator circuit. The bias arrangements are such that current increments from collector 4 exceed current increments applied to emitter 3 (i.e. is greater than unit) and the collector current i supplied via transformer 8, and resistance R5 to the emitter 3 and base 2 electrodes, in parallel It is shown that if the portion of this curren supplied to the emitter electrode is sufficient, oscil lations are produced, and a resonant circuit 6, is therefore placed in series with the base elec trode to reduce the current to the base electrode and increase the feedback to the emitter electrode at the resonant frequency. The output may be taken from any two electrodes. The circuit is analysed to explain the effect of the load resist ance, and resistances R51, R52, on the amount of feedback provided. In place of the parallel tuned circuit element 6, 7 a condenser-resistance net work may be provided, which provides feedback only at low frequencies, and in this case a second condenser resistance network may also be pro vided in series with either the collector or emitter electrode. This second network operates to pro vide increased feedback at higher frequencies, so that the combination ensures that feedback is sufficient for oscillations only throughout an intermediate frequency band. Oscillations in fact occur at that frequency at which the quadrature component of the two networks balance. The amount of feedback in any arrangement may be adjusted to be insufficient for oscillations, but if an input signal is applied, the arrangement ther acts as a regenerative amplifier with increased gain at the selected frequencies. Fie. 5 shows such an amplifier, the network 12, 13 providing increased gain at low frequencies, for input signals from source 16. The method of producing a suitable germanium element for use as the semi-conductor is described, including etching treatment, anodic oxidation treatment. and an electrical forming process, reference being made to Specifications 632.942, 632,980. Reference is also made to Specifications 592,260, 592,303, 669,399, regarding the use of silicon, to 595,601 regarding the construction of point contacts, to 694,025, 700,235 regarding the use of self biasing circuits, to 694,021, 700.232. and 694.026 regarding transistors in general and to 700.237 regarding transistor circuit analysis. Specification 694,022. [Group XXXVI], also is referred to.
Patent GB-533998-A (GB)
Title: Method of preparing resins suitable for plastic and coating compositions
IPC: C09D167/08
Filed: 1939-12-15
Abstract: 533,998. Resinous condensation products. AMERICAN CYANAMID CO. December 15, 1939, No. 32336. Convention date, February 18. [Class 2 (iii)] Resins, suitable for use in plastic and coating compositions, are prepared by heating an aminotriazine-aldehyde condensation product with a polyhydric alcohol, or with a partial ester of a polyhydric alcohol with a higher fatty acid, until a clear solution is obtained, and then heating this solution with an organic polycarboxylic acid until a modified alkyd resin of low acid number is obtained. The aminotriazine-aldehyde condensation products used are preferably those formed by reacting an aminotriazine with an aldehyde in molecular ratios of 1:3.5 to 1:4.5. In examples :-(1) formaldehyde solution is brought to a pH value of 8.5 by the addition of sodium hydroxide, and is refluxed with melamine. Glycerol and phosphoric acid are then added, the solution heated until clear, and dehydrated. Phthalic acid and soya fatty acids are added and the mixture heated until a resin of acid number less than 10 is obtained : (2) formaldehyde solution is brought to a pH value of 7.5 by the addition of triethanolamine, and glycerine is added. Melamine is then introduced, and the mixture heated at 100- 110‹C. A small amount of phosphoric, phthalic, maleic or fumaric acid is then added and heating is continued until a clear solution is obtained, which is dehydrated. Phthalic anhydride, linseed fatty acids, linseed oil and castor oil are added to the glycerine solution, and the mixture heated at 200-220‹C. until a resin of acid number 6-9 is obtained. The resins are compatible with nitrocellulose, and may be used for the production of clear or pigmented lacquers.
Patent GB-286398-A (GB)
Title: Improvements in wringing and mangling machines
IPC: D06F45/18
Filed: 1926-12-22
Abstract: 286,398. Whittaker Bros. (Accring- ton), Ltd., and Duckworth, J. A. Dec. 22, 1926. Folding mangles and wringers.-In a folding mangle &c. in which a sprocket wheel J fast on the shaft of the lower roller or revolving with the handwheel is geared by a chain H to a second sprocket wheel A loose on the turnover pivot C, there is provided a pawl G to engage a toothed wheel A<1> secured to the sprocket wheel A to hold it fast while the turnover frame is being raised or lowered by rotation of the handwheel, the sprocket wheel A running idly at other times. The pawl may be counterweighted, as shown, to drop automatically into engagement with the wheel A<1> as soon as the turnover frame is swung forward slightly, and the pawl is freed from the wheel as the turnover frame is arriving in its raised position by the engagement of a lug d on the frame with a lug g<1> on the pawl. In another form a pawl that is not counterweighted may be positively operated by the pedal that releases the catches that maintain the turnover frame in its raised position as described in Specification 266,542, or the pawl may be operated by a separate handle or lever. Specification 263,996 is referred to.
Patent GB-189777-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: B60L3/00
Filed: 1922-11-27
Abstract: 189,777. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Aspinwall, L. M.). Nov. 29, 1921, [Convention date]. Cut-out arrangements; automatic circuitbreakers.-In motor control systems such as those employed on trackless trolly vehicles, a line switch is opened automatically, when one of the current collectors becomes disengaged, either, as shown in Fig. 1, by the failure of an electromagnet 28 normally holding the switch operating lever 26 fast to a pedal-actuated accelerating-lever 22, or, as shown in Fig. 3, by the electromagnetic release of a spring-actuated striker 47 which forciblv carries the switch handle 41 to its off position. In the open position shown, the latching- plate 51 prevents the striker from being pushed back until the magnet 56 is energized.
Patent GB-378283-A (GB)
Title: Method and apparatus for producing stepped pedal axles
IPC: B21K1/06
Filed: 1931-11-23
Abstract: 378,283. Pedals. WIPPERMANN JR. AKT.-GES., 135, Delstenerstrasse, Delstern, Hagen, Westphalia, Germany. Nov. 23, 1931, No. 32457. Convention date, March 28. [Class 136 (ii).] Pedal axles are reduced in diameter stepwise at one end, blanks 10 being drawn successively by dies 6 .. 9.
Patent GB-325457-A (GB)
Abstract: 325,457. Soc. Anon. des Etablissements Neu. July 3, 1929. Addition to 303,489. Cleaning, fluid-pressure processes for.-In an improved means for operating a. valve, for producing a pulsating flow of a cleaning fluid for the apparatus described in the parent Specification, a small amount of the fluid is utilized to ensure quick shutting of the valve. The valve 10 when open, connects passages 42, 39, leading to the supply of compressed fluid and the cleaning apparatus respectively. When pressure in the passage 42 reaches a predetermined value, it acts through passages 15, 16, 26 - - 29 and lifts a plunger 23 against a, spring 30; this plunger uncovers ports 34 connected to atmosphere and so reduces the pressure in a chamber 43 so that the valve 10 opens. The pressure then acting through a pipe 40 causes the plunger 23 to snap back on its seating 25 and this enables the pressure fluid passing through passages 15, 16, in conjunction with a spring 12, to close the valve 10 through the medium of a plunger 9. Valves 17, 35, 41 are provided for regulating the apparatus.
Patent GB-1525622-A (GB)
Title: Head drum assemblies
IPC: G11B5/52
Filed: 1975-08-05
Abstract: 1525622 Rotary head recorder SONY CORP 5 Aug 1975 [27 Aug 1974] 32670/75 Heading G5R In rotary head, video tape recorder in which the tape is guided by a fixed drum 12 and a rotating drum 11 which also carried heads 36 operating in the gap between the drums and in which the signals are fed to or received from the heads via a rotary transformer 43, the pick up by the transformer, the signals leads 38, 41 and the tape of electrostatic or electromagnetic noise generated in the commutator 56 of the D.C. motor 13 driving the drum 11 and heads 36 is reduced by the provision of members 43, 50, 62, 70 which screen the transformer, the motor and the tape. The screens may be a layer of high magnetic permeability material, e.g. permalloy with a coating of a good conductivity metal, e.g. copper or the screen around the transformer can be a layer of conducting paint.
Patent GB-1121611-A (GB)
Title: Lubrication of bearings
Inventor: EDGECOMBE HOWARD TRETHOWEN
IPC: E21B10/24
Filed: 1964-08-11
Abstract: 1,121,611. Boring earth &c. BRISTOL SIDDELEY ENGINES Ltd. 11 Aug., 1965, No. 32687/64. Heading E1F. [Also in Divisions F1 and F2] An assembly includes a bearing one end of which is sealed from an ambient space and the other end communicates with a lubricant reservoir, the reservoir being formed with a flexible wall which acts to maintain the pressure of the lubricant in the reservoir and hence in the bearing higher than that of the ambient space. In the earth boring bit of Fig. 1B lubricant is initially supplied through nipple 45 to fill the cavities of bearings 23, 24, 25, passage 37 and probe 44, a previously filled lubricant reservoir 32 is positioned in a space 33, and part 13 is then screwed in position so that probe 44 lifts ball valve 43 and allows lubricant to flow to the bearings. The lubricant in the reservoir is pressurised both by drilling fluid passing through gating 49 and passage 50 to space 33, and by the resiliency of the reservoir walk which are initially corrugated. The passage 50 and space 33 may contain thin grease to prevent entry of debris. In Fig. 7 (not shown) drilling fluid is supplied to passage 33 directly from nozzle (17).
Patent GB-150217-A (GB)
Title: Improvements in collar buttons
IPC: A44B3/00
Filed: 1919-12-31
Abstract: 150,217. Cohen, S., and Foerster, A. R. Dec. 31, 1919. Studs. - The base 9 of a collar stud has permanently and revolubly connected to it a supplemental stud member 11 free to move inwardly, outwardly and laterally to avoid pinching the neck of the wearer. The member 11 is provided with an absorbent padding 19 of sponge rubber or other suitable material covered by a .smooth permeable covering 15 to absorb moisture and prevent discoloration of the neck. The stud comprises a head 6, neck 7, and base 9 provided with a hole 10 to receive the shank 14 of the stud member 11, which is retained in the base 9 by a plate 12 attached to the shank 14, the stud 11 being pressed outwardly by a spring 20. The padding 19 and covering 15 are attached by means of a dished plate 16, the edges of which together with the folded-over edges of the covering 15 are bent around an outer disk 13 carried by the shank 14.
Patent GB-1176956-A (GB)
Title: Incrementally-Controllable Thrust Propulsion Device
IPC: F02K9/94
Filed: 1967-07-17
Abstract: 1,176,956. Solid fuel motors. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 17 July, 1967 [26 July, 1966], No. 32782/67. Heading F3A. Incrementally - controllable thrust propulsion device for manoeuvering space vehicles, comprising a casing 1, e.g. of stainless steel, containing alternating combustible fuel layers 4 and separator layers 5, and a single control means such as an electrode 6 for generating pulses of thermal energy to decompose and/or evaporate or sublimate an adjacent separator layer and expose a fuel layer to the pulse to enable it to be ignited, the combustion, of the fuel layer acting to expose a further separator layer which prevents communication of combustion to a next fuel layer until a further pulse is generated. The electrode is urged towards the separator layers by a spring 8, and can be powered by a solar battery E. The separator layers are made of electrically conductive material such as aluminium foil, and form part of the igniting circuit. An automatic or remote controlled switch S operating by a radio link or gyroscopic and inertial means, closes the igniting circuit. The layers 4 and 5 may be flat, concave or cylindrical. In the latter case the layers surround a magnetic core and the separator layers serve as the secondary coils of a transformer, the coils being vaporized upon generation of a current pulse in the primary coil. In other embodiments, the pulse generating means comprise a resistance wire which can be associated with a reflector, a source of radioactivity, or a shutter for allowing sunlight to enter through a transparent portion of the casing. The separator layers used with these latter means include polyvinylchloride, polystyrene, cellulose acetate, urea-formed resins, methacrylates, polyesters, polysulphides, polyurethanes and polybutadiene. The fuel comprises compositions of ammonium perchlorate and asphalt or polyurethane; ammonium nitrate and cellulose acetate; or nitrocellulose, nitroglycerine and plasticizer.