baber/WOPTO huggingface dataset:
Patent GB-428956-A (GB)
Title: Improvements in wireless receiving systems of the super-heterodyne type
IPC: H03D7/08
Filed: 1934-01-29
Abstract: 428,956. Valve circuits for wireless reception. PEYTON, L. A., 4, Thirlmere Place, Northlands, Durban North, Durban, South Africa. Jan. 29, 1934, No. 2944. Convention date, Feb. 22, 1933. [Class 40 (v)] [See also Group XXXVI] The output circuit of a combined detector oscillator valve P, Fig. 1, comprises three paths. viz. the condensers Cl, C2 to earth, having a low impedance for high-frequency oscillations ; the resistance R1 and the condenser C6, having a low impedance for the intermediate frequency oscillations ; and the condenser C3 and feed-back coil L3, having a low impedance for the local oscillations, the coil L3 being earthed through condensers C4, C5. The feed-back coil L3 is coupled to a grid coil L2 which is tuned by a condenser TC. The feed-back coil L3 is tuned by the condenser TC over the coupling L2, L3 to the frequency of the local oscillations. A switch S allows the tuning condenser TC to be connected across various portions of the grid coil L2 and various points of the grid coil to be earthed. The coils L1, L2, Fig. 2, are wound on the outside of a rectangular frame, the coil L3 being movably mounted within the frame. The coils are secured in position on the frame F by external and internal clips CS1, CS2, Fig. 3, which are disposed at diametrically opposed points and which are chamfered to reduce the area of contact between the coils and the frame. In a modification, the coil assembly is provided with an additional coil having an iron dust core, Figs. 6 ... 9, (not shown). Specification 382,286 is referred to.
Patent GB-797250-A (GB)
Title: Bail handled closure cap
Inventor: RIEKE GLENN THEODORE
IPC: B65D47/06
Filed: 1957-01-28
Abstract: 797,250. Container closures. RIEKE METAL PRODUCTS CORPORATION. Jan. 28, 1957, No. 2944/57. Class 125(3). In a closure arrangement for a container 10 including a flexible pouring spout with a body portion 12 nestable within the container the spout is closed by a screw cap 21 of polythene or the like having a bail 23 integrally formed with a rim portion 22 but movable to provide a finger grip for removal of the cap. The spout may be initially sealed by a rupturable diaphragm 19 and a metal tamper proof sealing member 18 covers the assembly. Specification 688,534 is referred to.
Patent GB-1492961-A (GB)
Title: Mounting of electric modules
IPC: H02G3/18
Filed: 1975-01-16
Abstract: 1492961 Mounting electrical units J A CRABTREE & CO Ltd 16 Jan 1975 [23 Jan 1974] 03043/74 Heading H2E A plate for mounting one or more electric modules in boxes comprises a central aperture 31 and locating bend-outs 32, 33, 34, 35 (a, b). Recesses on shoulders of the module cooperate with the bend-outs and either one module using sets 33, 34 or two modules respectively using sets 32, 33 and 34, 35 are located in the aperture. The plate is secured to the box by screws passing through holes 38 and a cover with a suitably sized aperture is secured to tapped holes 36 and holds the module(s) against the plate.
Patent GB-104511-A (GB)
Title: Improvements in or relating to Spraying Apparatus more particularly for Sand Blast Machines, Whitewashing and Painting Sprayers and the like.
IPC: B24C7/00
Filed: 1917-03-01
Abstract: 104,511. Weller et Cie. March 3, 1916, [Convention date]. Sand-blast appara tus &c. comprises a chamber 1 contain ing sand &c. commu. nicating with the mixing-pipe 2 by a passage 9 provided with two cocks 7, 8 an d. a removable cover (not shown). Compressed air is supplied at one end of the mixing-pipe, and a branch pipe 4 admits compressed air to the upper part of the chamber 1. The removable cover of the chamber 9 is so arranged that, when removed, the cock 8 may connect either the chamber 1 or the passage 2 to the atmosphere. Should the sand cock 7 become choked, the cock 8 is turned to close the chamber 1 and the cover removed; compressed air will then blow through the cock 7 and thus remove obstructions. If, however, it is required to empty the apparatus, the cock 7 is closed and the cock 8 opened, whereupon the air ejects the contents of the chamber 1. The chamber 1 is provided with a filling-hopper 6 and valve 5.
Patent GB-471719-A (GB)
Title: Improvements in cutting tools for stamping machines
IPC: B21D28/34
Filed: 1937-02-02
Abstract: 471,719. Stamping; punching. DECKEL, F., (trading as DECKEL PRAZISIONSMECHANIK UND MASCHINENBAU, F.). Feb. 2, 1937, No. 3099. Convention date, Feb. 3, 1936. [Class 83 (iv)] Relates to punching or stamping machines of the type shown in Fig. 1, with pillar guides 5, punch 2, stripper 4, die plate 8, and ejector 11 through which fine punches 10 pass, and consists in a construction in which the ejector plate 20, Fig. 2, which transmits pressure to the ejector 18, is rigidly but detachably connected thereto, and guided accurately by a long bearing surface 21 in the die plate 22. The ejector is provided with an eccentric projection 27 engaging the ejector plate 20, through which a thick positioning pin 26 also passes. In a modification the bearing surface of the ejector plate is made still more elongated, and in another modification a sleeve is interposed in the bearing. Lubricating grooves 23 are provided.
Patent GB-465298-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B29/08
Filed: 1936-02-03
Abstract: Azo dyes are made by coupling diazotized 5-nitro-2-aminophenol with components of the formula <FORM:0465298/IV/1> in which R = hydrogen or an unsubstituted alkyl group.  They colour lacquers containing organic solvents, particularly cellulose ester lacquers and acetate artificial silk in pink shades and the dyeings can be discharged pure white.  For dyeing they are applied with a dispersion agent, e.g. soap, a sulphonated fatty alcohol or sulphite cellulose waste liquor. The dispersion pastes may be dried and powdered.  In examples the following components are specified: 3-ethyl- or 3-methyl-(b -g -dioxypropyl)-aminophenol ethyl, methyl, n-propyl or n-butyl ether or the corresponding o -oxyethyl or o -oxypropyl compounds, 3-n-butyl - (b -g -dioxypropyl) - aminophenol methyl ether, 3-(b -g -dioxypropyl)-aminophenol n-propyl ether, 3-n-butyl-(o -oxyethyl)-aminophenol-n-propyl ether, 3-o -oxyethylaminophenol methyl ether, 3-(g -methoxy- or ethoxy-b -oxypropyl)-aminophenol ethyl ether.  British Specifications 251,155, 292,180, [both in Class 15 (ii)], and 422,843 and U.S.A. Specification 1,948,208 are referred to.
Patent GB-639347-A (GB)
Title: Improvements in or relating to dial mountings for barometers and other like instruments
IPC: G01L7/00
Filed: 1948-02-04
Abstract: 639,347. Clocks. BROWNE & SON, Ltd. H., and BROWNE, F. G. Feb. 4, 1948, No. 3261. [Class 139] [Also in Group XIX] A dial 1, for a clock or other indicating instrument is mounted between a back plate 2, on which the instrument may be mounted, and a retaining ring 3, secured to the back plate to clamp the dial 1 between the ring 3 and the plate 2. The ring 3 is secured to the plate 2 by downturned lugs 4 with extensions 5 which engage recesses 6 in the dial and extend through slots in the plate 2 under which they are bent. The ring 3 is also formed with an offset, upstanding flange 7 which embraces the periphery of a glass which it prevents from turning by small lugs bent into corresponding recesses in the glass. A bezel 14 is provided with inturned lugs which pass through recesses 12 in the plate 2 and upon turning the bezel relative to the plate 2 lock the assembly together, turning being prevented thereafter by a lug in the bezel being bent into a recess in the plate. If relative movement between the glass and ring is required the small lugs preventing it are omitted and the glass is placed on leaf springs 16, whose ends are turned down into small holes in the ring, and is clamped in position by the bezel. For rotating the glass a handle 17 is provided, engageable in a recess 18 in the glass, and may be provided with an extension 19 in the form of a pointer. The invention may be applied to barometers, clocks, gauges or other instruments in which a dial has to be secured.
Patent GB-196712-A (GB)
Title: Improvements in or connected with flexible shaft driven rotary tool mechanisms
IPC: F16C1/08
Filed: 1922-02-04
Abstract: 196,712. Clegg, J. H., and Liverpool Patents Co., Ltd. Feb. 4, 1922. Shaft couplings; shafts and shafting.-In tubecleaning and other rotary-tool mechanism driven by flexible shafts, of the type in which the flexible shaft is coupled to a rigid tool-carrying spindle running in spaced ball bearings carried in a bearing tube within a tubular handle, to the rear end of which the flexible shaft sheath is fitted, the reduced end of the flexible shaft is fixed in a coupling-sleeve, which screws on to the toolcarrying spindle and is disposed within the tubular handle. The flexible shaft 1, consisting of concentric coils of wire, has its end 1<x> reduced in diameter by about one half and fixed, as by soldering or brazing, in a coupling-sleeve 10, which is housed in an extension 4<x> of the tubular handle 4 and is screwed on to the tool spindle 2. The tool spindle runs in ball bearings 5 carried in a sleeve 3, the parts being kept in position by a ferrule 13, nuts 7, washers 6, a soft pad 8, and a locking-screw 12. The sheath 14 is soldered or otherwise directly secured in the part 4<x>, or may he screwed into a split gland adapted to screw into a tapered thread in the part 4<x>, whereby it grips the sheath.
Patent GB-648464-A (GB)
Title: Improvements in sockets for two-pin caps for electric discharge lamps
IPC: H01R33/08
Filed: 1948-02-04
Abstract: 648,464. Lamp-holders. BRITISH THOMSON-HOUSTON CO., Ltd., and WOOD, C. W. Feb. 4, 1948, No. 3286. [Class 38 (i)] A discharge lamp socket 1 having parallel slots 3 behind which contacts 4 are mounted comprises a member 5 which is rotatable with respect to the slots and which moves the contacts 4 to engage the inserted lamp pins 9 by a projection 6 thereon. The member 5 is also provided with a projection 8 which obstructs the slots by a shoulder 10, thereby preventing the accidental withdrawal of the lamp. In a modification (Figs. 4, 5, not shown), the shoulder is omitted and the projection 8 fits the slots more closely. Specification 533,132 is referred to.
Patent GB-547682-A (GB)
Title: Coin-controlled vending machines
IPC: G07F11/62
Filed: 1941-03-11
Abstract: 547,682. Coin-freed vending machines. STEWART, W. M. March 11, 1941, No. 3334. [Class 27] [Also in Group XXIII] In a machine for dispensing bottled goods of the kind wherein any bottle B may be selected from a number of bottles stored in the machine and brought by a bottle-lifting device D to a position from which it may be removed through an opening 18, the top of the machine is provided with one or more narrow slots 15 which form a guide for the stem 47 of the lifting device, whereby the device may be moved along the slots to convey the selected bottle to a position adjacent to the opening 18, a coin controlled member 20 being adapted to receive the stem 47 of the device when in one position and being moved by the device when freed by the insertion of a coin, to another position in which the bottle can be removed through the opening 18. In the construction shown the casing 10 of the machine is provided with a refrigerating compartment 27 and with spaces for bottles B, these spaces being preferably formed by a wire skeleton frame 14, 14A. The top of the machine is covered by a metal plate 11 and glass panels 13 secured to the casing and disposed so as to leave slots 15 through which the stem 47 of the device D projects. The device D is constructed as shown in Fig. 8 and comprises spring fingers 50 adapted, when the device is lowered onto a bottle, to grip the bottle neck and allow the bottle to be lifted by the device. The spring fingers 50 have their central parts coiled round a circular ring 46 their inner ends 54 being fixed to a square-section ring 60 connected to the ring 46 by eyes 51. When a bottle has been selected and lifted by means of the device D it is moved along the slot 15 to a slot 19 in the metal cover plate 11. Here, the bottle will pass between the arms 20A of a member 20 sliding on a guide rod 21, this holder being then in a position (not shown) in which the arms 20A lie on either side of the slot 19. The stem 47 of the device D simultaneously engages a notch 20B in the member 20 so that as this stem moves along a further slot 19A the member 20 slides along the rod 21 into the position shown in Fig. 1 in which the bottle is immediately below the opening 18. The device D is then lifted until the neck of the bottle comes through the opening and the bottle can be grasped and lifted out of the machine. In moving to this bottle-delivery position the member 20 rocks a lever 30 on a coin-controlled shaft 23 and is then locked. To use the machine a coin is inserted in a coin-action 22 of any suitable kind, this releases the shaft 23 and allows the device D to be moved and to take the member 20 with it until the slot 20B is in line with the slot 19. The member 20 is then locked in this position by a spring-loaded catch lever 37 until the device D returns and its stem 47 in moving along the slot 19A rotates the lever and frees the member 20.
Patent GB-138628-A (GB)
Title: Improvements in or relating to the removal of printers' ink from printed matter
IPC: D21B1/32
Filed: 1920-02-03
Abstract: 138,628. Newsprint Reclaiming Corporation, (Assignees of Jespersen, T.). July 1, 1918, [Convention date]. Pulping-engines.-In removing ink from printed paper for the recovery of the paper stock, a pulping-engine is provided with a separating-device 6 comprising a vertical baffle 7 and strainer plate 8 inclined as shown. The oil of the ink rises to the top of the pulp carrying with it the colouring- matter, and these pass through the strainer and run out through a pipe 9, while the pulp passes under the strainer and baffle and around the trough 1. A spray pipe 10 which may be used continuously or intermittingly helps to carry away the foam which collects against the baffle 7. A pipe having a strainer on one side may be substituted for the device 6.
Patent GB-179255-A (GB)
Title: Improvements in frictional gearing
IPC: F16H13/10
Filed: 1921-01-27
Abstract: 179,255. Villiers, E. C. Jan. 27, 1921. Variable-speed gearing.-In friction gearing, the face of a disc 3 is pressed against the periphery of a wheel 8 by fluid pressure acting on a flexible diaphragm 10 and transmitted through a ball or like bearing 12. An annular pressure chamber 9 may be connected by a valve 32 alternatively to a reservoir of fluid under pressure, and to exhaust. As applied to variable-speed gearing, the wheel 8 slides on the driven shaft 13 and the disc or discs 3 are driven by rolling on the face of a disc 1 secured to the driving-shaft 2, a clutch 24 being provided for direct driving.
Patent GB-739091-A (GB)
Title: Improvements relating to styrenated esters of epoxy resinous materials
IPC: C08F299/02
Filed: 1953-02-06
Abstract: Styrene or a ring-substituted derivative thereof is heated, at 130-215 DEG  C., in an inert solvent boiling above 110 DEG  C. and having a Kauri-butanol value between 24 and 100, and in presence of a peroxide polymerization catalyst and a drying or semi-drying oil or a tall oil fatty acid ester, with an ester formed from a drying or semi-drying oil or tall oil fatty acid or lower alkyl ester thereof and the reaction product of a dihydric phenol and an epi- or dihalohydrin.  Suitable solvents are xylol, kerosene, toluol, high-flash naphtha, heavy aromatic naphtha, or various hydrocarbon mixtures sold under names such as "Varsol," "Amaco," "Ultracene" or "Solvesso" (Registered Trade Mark). Peroxide catalysts mentioned are 2,2-bis (tertiarybutylperoxy)-butane; tertiary butyl hydroperoxide; di-tertiary butyl peroxide; tertiarybutyl-propyl peroxide; tertiary butyl pentamethyl ethylperoxide.  Derivatives of styrene specified are o-, m-, or p - methylstyrene; 2,4 - dimethyl-styrene; 2,5-diethylstyrene; 3,5-dibutylstyrene; o- or p-chlorostyrene; o-bromostyrene; 2,4 - dichlorostyrene and 2,5 - dichlorostyrene. Suitable phenols for preparing the epoxy resin ester are 2,2-diparahydroxyphenyl-propane; resorcinol; p,p1-dihydroxybenzophenone; p,p1-dihydroxydiphenyl; p,p1-dihydroxydibenzyl; and o,p,o1,p1 - tetrahydroxydiphenyldimethyl methane.  The Specification also lists suitable halohydrins and suitable drying or semi-drying oils which may be used as such or as the source of the fatty acid for the epoxy ester.  In the examples, an ester is used which has been prepared from tall oil fatty acids and an epxoy resin prepared from epichlorhydrin and 2,2-diparahydroxyphenyl propane.  This p  ester is refluxed with styrene in presence of: examples (1), (2) and (3) dehydrated castor oil, Varsol No. 2, and ditertiarybutylperoxide.  In examples (4) and (5) crotonic acid and the pentaerythritol esters of tall oil fatty acids are also present.  The crotonic acid is used as a chain transfer agent. Its place may be taken by a -methyl styrene or a terpene, e.g. dipentene or limonene.
Patent GB-309259-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/34
Filed: 1928-02-03
Abstract: 309,259. Dudley, W. Feb. 3, 1928. Windows and the like, cleaning.-The wiper arm 6, Fig. 2, which is pivotally mounted, is provided with a slidable member 7 pressed upwardly by a spring 8 against cam surfaces 4 on a pair of lugs carried by the slide supporting the wiper, so that the cleaning element 10<a> is pressed towards the windscreen. T h e member 7 may be replaced by a spherically-shaped member. In the construction shown in Fig. 4, the member 7 is pressed upwardly against one or more discs 15 pivotally mounted between two lugs 14. In a further construction shown in Fig. 5, the spring-pressed member 7 is pivotally connected to one end of a lever 16, the other end of which is pivotally connected to the slide sumpporting the wiper. Specification 273,902 is referred to in the Provisional Specification.
Patent GB-371073-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/30
Filed: 1931-02-03
Abstract: 371,073. Safety razors. BRITISHAMERICAN SAFETY RAZOR CO., Ltd., 110, Cricklewood Lane, London.-(Assignees of Dalkowitz, G.; 245, West 72nd Street, New York, U.S.A.) Feb. 3, 1931, No. 3411. Convention date, July 3, 1930. Addition to 347,692 and 360,437. [Class 30.] The invention comprises detail improvements in the safety razor described in the parent Specification, wherein there is a blade seat 11 and a cover 15 pivoted at 32, 33 to links 30, 31 on a bar 28 journalled in a transverse groove below the blade seat, the cover being moved first downwardly on to the seat, then forwardly to advance a blade 16 against edge abutment stops 13 by rotation of the bar 28 which is effected by screwing upwards a plunger 39 against a cam incline 37 on a slidable forwardly spring-pressed rack 35 engaging teeth 34 on the bar 28. The blade is advanced by depending abutments 44 on the cover engaging side notches in the blade and received in notches 11<1>, 11<2> on the blade seat, and it is also located and guided by a central projection 19 engaging an aperture therein. The cover 15 is locked in the advanced position by its rear end 51 overlying the end of the blade seat. The improvement consists mainly in the provision of ridges 56, 57 on the side-walls of the cover 15 which bear against enlarged parts 301, 31<1> on the links during downward movement of the cover, Fig. 4. Corner projections 66, Fig. 1, are also provided on the blade seat opposite the stops 13 so that the rear edge of the blade rests on them out of contact with the seat. The head 40 of the cam-engaging plunger 39 has an inclination equal to that of the cam incline 37 and the plunger is prevented from leaving the handle by an integral collar 64.
Patent GB-662455-A (GB)
Title: Improvements in electrical contacts for use in association with weighing apparatus
Inventor: MAISEY HAROLD ROBERTS
IPC: G01G23/36
Filed: 1949-02-09
Abstract: 662,455. Switch contacts. AVERY, Ltd., W. & T. Feb. 9, 1950. [Feb. 9, 1949] No. 3496/49. Class 38 (v). [Also in Group XVIII] A contact device for use with the indicator of a weighing scale, and in particular the indicator of an automatic feed weigher, comprises a flexible wire strip 7 secured at one end to a screwed plug 18 in a tube 6 and resting in a V-notch 8 in a second plug 9 screwed into the tube at the other end, which tube has gaps 10 through which the wire 7 makes contact with wire loops 13, protruding from the periphery of discs 12, when the indicating arm 5 and tube 6 are rotated about an axis 19. The discs 12 are each secured to a handle 16 through a sleeve 15 so that the angular position of the loops 13 can be adjusted to correspond with any weight position of the indicator and friction pads 17 hold the handles in the adjusted position. The amount of protuberance of loops 13 is adjustable by screws 14. When applied to an automatic feed weigher the contact made with the three discs successively effect dribble feed, cut off and resetting for the next cycle.
Patent GB-156824-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B57/22
Filed: 1919-02-14
Abstract: 156,824. Cooper, J., and Twin Bobbin Sewing Machine Co., Ltd. Feb. 14, 1919. Sewing-machines; look stitching by shuttles.-In a two-reel sewing - machine the under-thread reel-case is rotated continuously in a circular race by means of a driver of usual form, the horns of which permit a slight movement of the shuttle relative to it. By suitable acceleration and retardation of the driver the shuttle moves from contact with one turn o the driver to the other anc back again to permit the passage of the needle-thread loop. The mechanism for giving a variable rotary motion to the shuttle shaft comprises a pitman o, a rocking-sliding pivot p, and a drag-link q.
Patent GB-537350-A (GB)
Title: Improvements in wireless receiving systems
IPC: H04B1/30
Filed: 1940-02-28
Abstract: 537,350. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 28, 1940, No. 3711. Convention date, Feb. 28, 1939. [Class 40 (v)] A receiver suitable for single side band reception with displaced or suppressed carrier comprises a thermionic valve having two control grids screened from each other but acting successively on the same electron stream, a suitably controlled local oscillator to supply carrier frequency energy and apply it to one control grid, and a circuit for supplying the received side band alone to the other control grid. The Figure shows a receiver for use when a single side band is transmitted together with a modulating tone comprising a displaced carrier. The output from the intermediate frequency amplifier is coupled to two channels, one through a displaced carrier pass filter 37 and the other through a single side band pass filter 17. The output of filter 37 passes to a discriminator 41 and frequency control valve 43 which controls the frequency of a local carrier frequency generator 45 which supplies energy to a grid 29 of valve 19. Side band energy is supplied from filter 17 to grid 27 of valve 19 which is screened from grid 29, and the demodulated signal is taken from the anode. In a modification, a single fixed oscillator provides the heterodyne oscillations by means of a variable harmonic selector and the replacement carrier oscillations by means of a fixed harmonic selector. Specification 505,926 is referred to.
Patent GB-1539414-A (GB)
Title: Cationic fluorine containing monoazo dyestuffs
IPC: C09B44/10
Filed: 1976-01-30
Abstract: Cationic azo dyestuffs of the formula (1) <IMAGE> in which the individual symbols have the meaning given in Patent Claim 1, are prepared by reacting an azo dyestuff of the formula (2) <IMAGE> with an alkylating agent. The novel cationic azo dyestuffs are suitable for dyeing and printing acid-modified synthetic fibres.