baber/WOPTO huggingface dataset:
Patent GB-1114983-A (GB)
Title: Control of electrical installations by means of impulses
IPC: H02J13/00
Filed: 1966-07-04
Abstract: 1,114,983. Signalling over power circuits. ZELLWEGER Ltd. USTER FACTORIES FOR APPARATUS & MACHINES. 4 July, 1966 [4 Aug., 1965], No. 29946/66. Heading H4R. In a method of signalling over power supply conductors the frequency of the control signal generated at the transmitter, and the response frequency of the receiver, are both rigidly related to the frequency of the supply carried by the conductors. The transmitter may include an alternator driven by a synchronous motor fed from the supply conductors, while the receiver may include a tuned filter whose resonance frequency is controlled by the power supply frequency via a frequency discriminator, or alternatively a frequency the same as, or similar to, that generated at the transmitter may be produced from the supply frequency, e.g. by a synchronous oscillator or frequency inverter, to supply a phase-sensitive detector which detects the incoming signalling frequencies. Fig. 1 shows an embodiment of a receiver including a phase-sensitive detector, in which the local oscillation is produced in 18 from the supply conductors 1 and 2. The local oscillation may have exactly the same frequency as the incoming signal in which case the output will depend on the relative phases. Alternatively the frequencies may differ by a known amount to produce at the input of filter 20 the difference frequency which is selected by the low pass or band pass filter 20 and applied via the rectifier bridge 21 to the evaluation relay 22. If the local oscillator frequency is the same as the signalling frequency two phasesensitive detectors may be used fed with phase quadrature local oscillations and the outputs combined to operate the evaluation relay irrespective of the relative phases of the local oscillator and signalling frequency, Fig. 5 (not shown).
Patent GB-382428-A (GB)
Title: Improvements in or relating to tables
IPC: A47B1/05
Filed: 1931-10-29
Abstract: 382,428. Tables. LUPTON, F. and LUPTON & SONS, Ltd., J., Tong Road Mills, Tong Road, Leeds. Oct. 29, 1931, No. 29950. [Class 52 (iii).] An extending table with simultaneously s li d i n g end leaves has two pairs 1, 1<x> of leaves hinged together at their adjacent edges 1<a>, 1<b> at the middle of the table. The undermost leaf of each pair is fixed each to slides 3, 3<x>, Fig. 1, in guides 4, so that the pairs of leaves may be separated and the top leaves turned inwards until they occupy the former positions of the under leaves. Brackets 5 with rollers 6 engage with fixed bars on the underframe and prevent the pairs of leaves from rising. Simultaneous movement of the pairs of leaves is effected by interconnecting devices such as lazytongs 7 pivoted centrally to a longitudinal bar 8.
Patent GB-360598-A (GB)
Title: Improvements in or relating to drifts for ejecting drills and the like from sockets
IPC: B23B31/07
Filed: 1930-10-07
Abstract: 360,598. Tool for removing drills &c. from sockets. ROBERTS, BLACK, & CO., Ltd., 37A, Bridge Street, Manchester, and SKIPPER, C. T., Melrose, Chapel Lane, New Longton, Preston. Oct. 7, 1930, No. 29969. [Class 61 (iii).] A drift of the telescopic type comprising an ejector proper b for ejecting drills, reamers, taps, &c. from sockets of drilling &c. machines and a sliding hammer member c is provided with a buffer to absorb the shock of any impact between the drift and the drill &c. socket in the form of a coil spring a having an eye secured to the ejector part or to the hammer, or a rubber buffer f, Fig. 5, with embedded coil spring i retained on the end of the hammer member c by a ring g secured by screws h, or a rubber buffer j, Fig. 6, retained on an enlargement bl of the ejector b.
Patent GB-177487-A (GB)
Title: Improvements in and relating to pulleys
IPC: F16H55/38
Filed: 1921-11-10
Abstract: 177,487. Williams, M. F., and Plaisted, H. M. March 21,1921. Addition to 168,043. Pulleys.-In the type of pulley described in the parent Specification, both faces A, B of the grooves on the rim of a pulley make obtuse angles a, b with the rim surface.
Patent GB-662048-A (GB)
Title: Improvements in fly screens
IPC: E06B9/52
Filed: 1949-11-23
Abstract: 662,048. Fly screens. BELL, J. Nov. 23, 1949, No. 30062/49. Class 20(iii) A four-sided fly screen has the fly wire attached to two opposite 'sides whilst the other two sides may be increased in length so as to keep the fly wire taut. The wire 11 may be secured to bars 12 and 13 by means of crimping strips 10 as shown in Fig. 4. As shown in Fig. 1, the other two sides have elongated nuts 22, 23 with screw threads engaging tube members 18, 19 so that the sides may be varied in length. Alternatively as shown in Fig. 3, a spring 26 may be placed in tube 18 so as to push the rods 14 and 24 forming the side apart and increase its length.
Patent GB-901310-A (GB)
Title: Improvements in or relating to methods and apparatus for introducing filling material into mined areas
IPC: E21F15/04
Filed: 1959-09-03
Abstract: 901,310. Mines &c. HOESCH A.G. Sept. 3, 1959 [Sept. 6, 1958], No. 30154/59. Class 85. A goaf mat 8 is fixed to a series of roof support frames 1, 2, 3, 4 so that advance of the frames towards the working face causes advance of the mat. The mat is formed in sections which are each associated with a frame and overlap slightly, one side of the frames only being attached to mat at 7, 12. A pipe 11 for supplying waste to the goaf and a conveyer 5 are also supported by the frames. After the face has been cut away the right-hand sides of frames 1, 2 are advanced towards the face, the pipe 11 is broken at 13, and the mat sections are disconnected between frames 2, 3. The left-hand sides of frames 1, 2 are then advanced and waste is supplied to the space behind the mat adjacent frames 1, 2 by the pipe. The area behind the frames 3, 4 and any other frames is filled in a similar manner. The modification shown in Figs. 6, 8 is adapted for use in sloping seams, the frame 1<SP>1</SP> being installed at the lowest part of the seam. After the face has been cut by an excavator 5<SP>1</SP> the left-hand sides of the frames 1<SP>1</SP>, 2<SP>1</SP> are advanced together with the associated parts of the mat 11<SP>1</SP>. After the space vacated by the parts of the mat is filled with waste falling under gravity, the right-hand sides of the frames 1<SP>1</SP>, 2<SP>1</SP> are advanced. The frames 3<SP>1</SP>, 4<SP>1</SP> are then advanced and additional waste is supplied to the space behind the mat in the direction of the arrow (Fig. 6).
Patent GB-1056502-A (GB)
Title: Method of and apparatus for annealing sheet metal
Inventor: HAZEN FRANK DE FOREST
IPC: C21D1/767
Filed: 1965-07-16
Abstract: <PICT:1056502/C6-C7/1> A box annealing furnace wherein inert gases heated to 1100-1400 DEG F. anneal steel strip or sheet coils comprises an annular refractory base 1 on which is mounted an annulus 2 having radial flow passages 3 with a base plate 4 for supporting the coils, e.g. 5, 6 and 7 separated by convector plates 8 and 9 and crowned by a cover plate 10, a single cover 13 supported on the base, e.g. through a hermetic seal 16, and spaced from the coils to form an annular flow passage around the coils, an injector nozzle 21 extending through opening 19 in the base, a heating device (see Fig. 2, not shown) such as a fuel/air burner for heating the inert gases, e.g. N2 and H2 with or without CO, CO2 and CH4, and delivering them under pressure through pipe 20 to the nozzle 21 for circulation e.g. at 3000-7500 c.f.m. through the eyes of the coils and around the coils at reduced pressure and out through passage 22 for recirculation in pipe 23.  After annealing the inert gases may be circulated through a cooling device (see Fig. 3, not shown) to effect rapid cooling e.g. to 300 DEG F. of the annealed coils.  A bleeder pipe 26 communicating with a flame detector 27 is provided to indicate that the furnace chamber is free from an oxidizing atmosphere; inert gas is initially supplied through a pipe 24.
Patent GB-191542-A (GB)
Title: Improvements in or relating to aeroplanes
IPC: B64C9/32
Filed: 1921-11-15
Abstract: 191,542. Sevian, V. Nov. 15, 1921. Planes and the like, arrangement and disposition of; steering, balancing, and regulating altitude. - An aeroplane is provided with a pair of auxilary planes 1, 2, disposed parallel to one another above and below the longitudinal axis of of the machine, pivotally mounted along their rear and forward edges respectively, and adapted to be moved simultaneously away from or towards the body of the machine. The lower plane 2 is preferably heavier and of greater area than the upper plane 1. The planes 1, 2 are pivotally connected to rods 5, 6 which are also pivoted to a member 7 rotatable about its axis 8 by the operation of a handle 10 connected to a cable 11 led over a pulley 12 and fixed to one end of the member 7. A stop 9 limits the movement of the planes 1, 2. When the device is applied to a biplane the planes 1, 2 may be mounted in apertures in the main wings. The invention is stated to be of utility for restoring the machine to its normal flying position when a nosedive occurs.
Patent GB-484599-A (GB)
Title: Manufacture of polymerisation products
IPC: C08G2/00
Filed: 1936-11-09
Abstract: Ketones having the formula R-CO-CH= CH2 where R is a naphthyl-group or a substituted phenyl-group containing an alkyl-, alkoxy,- or acyloxygroup or a halogen atom, are polymerized to produce clear, viscous or solid substances soluble in aromatic hydrocarbons.  The polymers of alkoxy- or acyloxy-phenyl-vinyl ketones are soft and rubberlike.  The phenyl group may have one, two, or three chlorine atoms introduced; other p  suitable starting materials are para-methylphenyl-vinyl ketone, para-ethylphenyl-vinyl-ketone, para-propylphenyl-vinyl ketone, 2 : 4-dimethylphenyl-vinyl ketone, 2 : 4 diethylphenyl-vinyl ketone, 2 : 4 dipropyl-phenylvinyl ketone, para-methoxyphenylvinyl ketone, para-ethoxyphenyl-vinyl ketone, para-butyloxyphenyl-vinyl ketone, para-acetoxyphenyl-vinyl ketone, para-chlorphenyl-vinyl ketone, or para-bromphenyl-vinyl ketone. Aryl-vinyl ketones are prepared by splitting, e.g. by heating with steam, tris-(aroylalkyl) amine hydrochlorides made by condensing aromatic ketones with formaldehyde and ammonium chloride. Para-chlorophenyl vinyl ketone may be thus prepared from para-chlorophenyl-methyl ketone obtained from chlorbenzene, and para-ethoxyphenyl-vinyl ketone may be prepared from para-ethoxy-acetophenone.  Alternatively, b -naphthyl-vinyl ketone is made by splitting off hydrogen chloride from the condensation product of b -naphthoic acid chloride and ethylene.  Specification 461,495 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the polymerization of para-acetylamino-phenyl-vinyl ketone and tetrahydronaphthyl-vinyl ketones.  The polymerization may be assisted by acetyl benzoyl, oleyl, or stearyl peroxide and may be carried out in solution or aqueous or other emulsion.  This subject-matter does not appear in the Specification as accepted.
Patent GB-310944-A (GB)
IPC: D01D5/14
Filed: 1928-10-22
Abstract: 310,944. Bemberg Akt.-Ges., J. P. May 5, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Addition to 299,038. Ammoniacal-copper cellulose solutions, processes for making filaments from.-By the process of the parent Specification there is produced a yarn having a tear resistance of more than 220 gr. per 100 deniers in the dry condition and more than 140 gr. per 100 deniers in the wet condition, and composed of individual filaments having a titre of 1 denier and below.
Patent GB-1323832-A (GB)
Title: Disc elements for disc brakes
IPC: F16D65/12
Filed: 1971-06-30
Abstract: 1323832 Casting brake discs DAIMLERBENZ AG 30 June 1971 [3 July 1970] 30595/71 Heading B3F [Also in Division F2]  A disc for a spot-type disc brake comprises a friction disc 6 and a deep-drawn pot-shaped hub 7 provided with a radially-extending flange 8 from which parts 9 are cut out, leaving teeth 10 which are cast into the friction disc 6; each tooth has flanks parallel to each other. The toothed connection ensures efficient transmis-   sion of braking torque, circumferentially, while the parallel flanks permit radial thermal expansion without stress. Such expansion is facilitated by coating the teeth 10 with a protective layer which prevents them from becoming welded fast in the friction disc. Preferably friction disc 6 is of grey cast iron and hub 7 is steel sheet.
Patent GB-761204-A (GB)
Title: Needle holder for sewing machines
IPC: D05B55/02
Filed: 1954-10-25
Abstract: 761,204. Sewing-machines. SOC. INTERNATIONALE DE FINANCE. Oct. 25, 1954 [Oct. 28, 1953], No. 30606/54. Class 112. A needle holder for a sewing machine comprises a sleeve 6 securable to the needle bar 1, and a clamping member 8 removable from the sleeve while the latter is so secured and replaceable by an alternative clamping member, so that the holder can be used to hold one or more flat shank needles, if desired. The sleeve is secured to the needle bar by a screw 7, and a needle 4 is pressed against the vertical surface 2 of a notch formed in the lower end of the needle bar, clamping pressure being applied to member 8 by a screw 12. Member 8 may have one needle-receiving groove or two or more grooves spaced at the required distance apart.
Patent GB-652197-A (GB)
Title: Improvements in or relating to liquid fuel lighters
IPC: F23Q2/06
Filed: 1948-11-26
Abstract: 652,197. Liquid fuel lighters. KILBURN, A. Nov. 26, 1948, No. 30665. [Class 75(iii)] A liquid fuel lighter comprising a liquid fuel reservoir 11 and a housing 12 for absorbent material has the remote ends of such housing and reservoir connected by a duct 29-28-30 to prevent flooding of the wick. The absorbent material may be recharged with fuel by tilting the lighter. The fuel may be contained in a capsule which may be opened before insertion in the lighter body or alternatively be opened after insertion in the lighter by screwing home the filling plug 15. The reservoir 11 and housing 12 may be in the form of separate tubes fitted into the lighter body, and the tube forming the reservoir 11 may be made of a transparent material to enable the fuel level to be observed through a cutaway portion of the lighter body. The lighter body may be built up of sections 10a, 10b, and 10d of transparent materials of contrasting colours, a metal bottom plate 10c and a metal top block 17 containing the wick and friction wheel. The snuffer cap is held in the open or closed position by means of a spring pressed ball 25 engaging notches 26 or 27 in the rear end of the cap.
Patent GB-215678-A (GB)
Title: An improved maximum current interrupter
IPC: H01H77/04
Filed: 1923-12-06
Abstract: 215,678. Woosnam, A., (Herkules Akt.- Ges. f³r Fabrikation and Handel). Dec. 6, 1923. No Patent granted (Sealing fee not paid). Mercury cut-outs. -A liquid - thread mercury or other conducting liquid interrupter comprises a refractory body 9 containing a mercury thread 14 between mercury reservoirs 12, 13 closed at one end by a metal flange 22, with intermediate packing, and at the other end by a rubber diaphragm. The body fits within a tubular casing 1 and has the exterior form of a cartridge fuse. The casing is closed at one end by a metal cover with an external projection 3 to fit within the fuse, socket, an internal projection 4 resting against the diaphragm and carry contacts 5 engaged by contacts 19. The contacts 19 consist of projections from a ring 16 secured to the body 9 and electrically connected to the reservoir 13 by a pin 18. A non-conducting spindle 23 is secured to the plate 22 and carries a sleeve 24 provided with a flange 25. The flange is pressed against the fixed endring 6 by a light spring 26 which holds the parts in the position shown and electrically connects the reservoir 14 with the flange 25 in engagement with the ring 6. With excess current, the thread divides and the vaporised mercury presses the diaphragm againt the projection, whereupon the body 9 moves to the right, breaking the circuit at the contacts 5, 19. The off position of the fuse may be observed by the appearance of the spindle 23 through the orifice 27. To reset the fuse, the sleeve 24 is pressed in thereby separating the contacts 6, 25 in the fuse circuit; thereafter the further compression of the spring 26 forces the body 9 into the, contact position shown in Fig. 1 and, upon release of the sleeve the circuit is completed at the contacts 6, 25.
Patent GB-810969-A (GB)
Title: Improvements in auxiliary supply arrangements for electric traction equipments
Inventor: WHYMAN FRANK
IPC: H02J7/22
Filed: 1956-10-09
Abstract: 810,969. Automatic voltage control systems; electricity supply systems. METROPOLITANVICKERS ELECTRICAL CO. Ltd. Sept. 12, 1957 [Oct. 9, 1956], No. 30760/56. Class 38 (4). The output of a dry-plate rectifier is connected in series with the armature of a buck/ boost generator, the field of which is automatically controlled to maintain the total ouput voltage constant. Regulated and unregulated auxiliary D.C. supplies are thus made available on an A.C. electric traction system. An auxiliary winding 4 on the main traction motor supply transformer 1 supplies the dry-plate rectifier 8. A booster transformer 9 enables the rectifier input voltage to be pre-set for average operating conditions and to allow for rectifier ageing. Unregulated D.C. loads such as an air-compressor motor 31 and cooling fan 33 are connected directly across the rectifier output. Loads including a battery 17, which require a stabilized supply are connected in series with the armature 12 of the buck/boost generator which is driven by a motor 12a from the A.C. supply. The generator 12 has opposed field windings 19, 20 connected across the D.C. supply, the mid-point of the windings being connected to the centre contact 21 of a moving coil voltage regulator which has field coils 27 and a moving coil 26. When the output voltage is correct, there is zero excitation as windings 19 and 20 cancel. If the voltage deviates, the voltage regulator closes contacts 21, 22 or 21, 23 thereby shunting one field winding to excite the generator in the appropriate sense, and simultaneously changing the current in the field coil 26 of the regulator to effect intermittent action. It is stated that the moving-coil regulator may be replaced by a carbon pile regulator.
Patent GB-341465-A (GB)
Title: Improvements in or relating to heater elements for electric discharge devices and to methods of making such elements
IPC: H01J9/08
Filed: 1929-10-10
Abstract: 341,465. Thermionic valves. ARCTURUS RADIO TUBE CO., 260, Sherman Avenue, Newark, New Jersey, U.S.A.- (Assignees of Ruben, S. ; 801, Riverside Drive, New York, U.S.A.) Oct. 10, 1929, No. 30762. Convention date, Oct. 11, 1928. Drawings to Specification. [Class 39 (i).] The heater elements of indirectly-heated cathodes comprise a refractory metal body insulated by a coating of corundum. Calcined aluminium oxide is ground with a small amount of sodium silicate solution, and a previously-oxidized tungsten wire is coated three times with the mixture and heated to 1000‹ C. in a reducing atmosphere such as hydrogen to volatilize the silicate and crystallize the oxide.
Patent GB-1378172-A (GB)
Title: Radiographic silver halide elements
IPC: G03C5/16
Filed: 1971-12-20
Abstract: 1378172 Photographic silver halide material AGFA-GEVAERT 20 Dec 1971 [5 Jan 1971] 30814/74 Divided out of 1378171 Heading G2C A radiographic silver halide element comprises a support bearing at each side thereof a lightsensitive layer containing a colour coupler which upon coupling with an oxidized aromatic primary amino colour developer forms a dye mainly absorbing in the green and red spectral regions; wherein the light-sensitive layers are composed of a mixture of two independently prepared silver halide emulsions one of which is capable of producing a visible image by an exposure and subsequent development as above and the other of which is a silver chloride containing emulsion whose speed is so low that no visible image is produced therein by the said exposure and development. The colour coupler may be a phenol or α-naphthol type. The image forming emulsion may be silver chloride, silver bromide, silver chlorobromide, silver bromoiodide or silver chlorobromoiodide. The low speed emulsion may be silver chloride or silver chlorobromide. Development is carried out at a temperature of at least 30‹C . The low speed emulsion prevents the gradation being reduced by rapid development at elevated temperatures.
Patent GB-183083-A (GB)
Title: Improvements in connection with hand baskets
IPC: B65D6/08
Filed: 1921-11-18
Abstract: 183.083. McLennan, W. S., and Thomson, G. Nov. 18, 1921. Boskets.-A chip basket for fruit &c. is stiffened by rigid wooden or corrugated sheet-metal strips inserted between the interlaced strips A of which the basket is composed. The strips C inserted in the bottom are ither transverse or longitudinal, and the strips D in the sides of the basket are longitudinal. Similar strips may also be inserted in the ends. The strips are secured beneath the parts A without special fastenings.
Patent GB-208163-A (GB)
Title: Improvements in and relating to photographic enlarging and projection printing apparatus
IPC: G03B27/34
Filed: 1923-12-07
Abstract: 208,163. Iser, A. Dec. 7, 1922, [Convention date]. Enlarging, copying, and reducing. - Consists in apparatus in which (1) the distance between the sensitive surface and a source of light in the form of a concave diffusing reflector is invariable for a given range of enlargement, (2) the central zone of the reflector is illuminated bv lamps which are located at the periphery, and which preferably project cones of light in a direction at right angles to their axes (3) the objective and negative carriers are arranged for limited adjustment for focusing, preferably with scales for indicating the settings (4) the sensitive surface is carried in one of several interchangeable frames each designed to hold the sensitive surface at a distance from the source of light appropriate to a certain range of enlargement and (5) means are provided for ventilating, cooling, rendering the apparatus light-tight, vignetting, and changing the white printing-light to yellow or red for inspecting. In the form shown, the source of light is fixed in a box 15 having light-trapped vents 21, 22 and a cooling bellows 20, and comprises a concave reflector 19 of opaque glass, the central zone of which is illuminated by cone of rays directed laterally from several lamps 16 located round its periphery, each lamp being fitted with an opaque screen 17. The objective 8 and negative 40 are enclosed in a removable casing 2 resting on the box 15, and the negative holder 14, which is fitted with a glass protecting-plate 41, is slidable horizontally in a frame 10. Above the objective is a plate 44 carying a slide operable from the outside, and fitted with a red or yellow pane. Fixed to the casing 2 is an upper casing 1 upon which may be secured by pin 38 a holder 30 in which the sensitized material is pressed on a glass plate 32 by a hinged back 31. This holder is readily detachable, and may be replaced by a deeper holder of the same kind, adapted to support the sensitized material at a greater distance from the source of light, or by a holder for rolled paper. Below the holder 30 is a frame 25 for holding vignetting- screens. To permit focusing, the objectiveframe 7 is supported by rods 3 terminating in bolts adjustable vertically in light-trapped slots 4 and carrying clamping-nuts 5; and the negativeframe is mounted on bolts 11 which may be similarly adjusted and clamped in light-trapped slots 12. In both cases, the settings are indicated by pointers carried by the bolts, and working over fixed scales. The focusing adjustments may be effected by rack gearing.