baber/WOPTO huggingface dataset:
Patent GB-318634-A (GB)
Title: Improvements in microphones and like instruments
IPC: H04R1/38
Filed: 1929-09-06
Abstract: 318,634. Ges. f³r Elektrische Apparate. Sept. 7, 1928, [Convention date]. Microphones; mouthpieces and attachments.- A membrane communicating its vibrations through an air-space to a microphone is screened from disturbing noises and rigidly coupled to a speech membrane upon both sides of which the disturbing noises impinge. In one construction the speech membrane 2, Fig. 1, is rim clamped and disturbing noises reach its back surface through holes 11 in the casing 12 and a hole 10 in a rigid diaphragm 9, and its front surface through the mouthpiece 1. The size of holes 11 and 10 may be made adjustable for accurate compensation. The speech diaphragm 2 is rigidly coupled through a rod 3 to a free diaphragm 4 arranged inside a rubber ring 8 and shielded from extraneous noises by a conical shield 7. The diaphragm 4 actuates a microphone 5 supported in the outer casing by shock absorbing rubber rings. In a modification, the speech diaphragm is free and drives a rim-clamped diaphragm actuating the microphone.
Patent GB-842238-A (GB)
Title: Improvements in or relating to electro-magnetically operated valves
IPC: B60T8/36
Filed: 1958-08-25
Abstract: 842,238. Valves. RECHERCHES ETUDES PRODUCTION R.E.P. Aug. 25, 1958 [Aug. 28, 1957], No. 27166/58. Class 135. An electromagnetically-operated valve intended for use particularly with accelerationresponsive devices on automobile vehicles to interrupt the application of hydraulic braking pressure before excessive deceleration of the vehicle produces an undesirable skid and to restore this pressure once the excessive deceleration has ceased, comprises an electromagnetic solenoid 3 and a core 6 mounted therein, a valve body 16, two rings 29, 30 let into a bore in the valve body with a spacing member 31 therebetween, two valve seatings formed in the opposed internal faces of the rings, inlet and exhaust fluid connections 17, 19 respectively to the bore of each ring and a third, fluid utilization, connection 18 to the space between the rings, a ball valve 28 movable between the two rings, a push-rod 9 actuated by the core 6 of the solenoid and adapted to act on the ball valve and a spring 32 urging the ball valve against the action of the push-rod. The movement of the push-rod required to operate the ball valve is arranged to be small in relation to the diameter of this ball valve. The solenoid core 6 works in a sealed chamber which communicates past the plunger 9 with the exhaust connection 19.
Patent GB-604527-A (GB)
Title: Lubrication
IPC: F16N27/00
Filed: 1945-10-17
Abstract: 604,527. Lubricating. BENDIX AVIATION CORPORATION. Oct. 17, 1945, No. 27235. Convention date, Oct. 23, 1944. [Class 12 (iii)] In a lubricating device in which the flow of lubricant is regulated or metered by a throttle arrangement comprising an aperture with a rotating pin of slightly smaller diameter extending therethrough, the pin is rotated by means independent of the lubricant. Oil, supplied under pressure by a pump 24 to a central chamber 13 in a housing member 10, passes through throttled passages 20, 21, provided by the peripheral clearance spaces of a rotating pin or spindle 16 to distributing chambers 11, 12, thereby to feed metered amounts of oil to the bearings 34, 33 through pipes 28, 26 which are fitted with non-return valves 32, 31 to prevent siphoning of oil from the bearings when the system is not in operation. The distributing chamber 12 is closed by a plug 14 which can be unscrewed to allow the substitution of a spindle of different diameter to give a different metered flow. The spindle 16 is driven through a ball-clutch 18.
Patent GB-333075-A (GB)
Title: Improvements in hand-bags and the like
IPC: A45C3/06
Filed: 1929-09-09
Abstract: 333,075. Edgell, I. S. C., and Dampney, S. F. Sept. 9, 1929. Hand and like bags; satchels.-A handbag or satchel is provided with a partition d formed with a number of pockets e and having the side and bottom edges secured in the seam at the back of the bag so as to provide a wide front compartment band a narrow rear one c. The upper edges of the pockets e may be cut away in curved form as shown. The end gussets may be continued upwardly beyond the mouth, which is made shorter than the bottom of the bag, to afford a good closure when the flap g, which may carry a mirror g<1>, is turned down. A shoulder sling k may be detachably connected to straps h, j, secured to the ends, or these straps may be attached together to form a short handle.
Patent GB-784961-A (GB)
Title: Apparatus for fiberizing wood fragments of chip or shredded form
IPC: D21D1/32
Filed: 1955-09-26
Abstract: 784,961. Preparation of paper pulp. PANDIA, Inc. Sept. 26, 1955 [Oct. 6, 1954], No. 27354/55. Class 96. Wood chips &c. are fed at 11 to a tapered casing where they are advanced and compacted to form a plug, by a screw-blade 12, and pass to a passageway 15 where they are subjected to steam under pressure while being fed forwardly by a screw-blade 19, to fall at 23 to an impeller 27 and subjected to intense turbulence, particles of fibrous material and steam leaving the turbulent zone through an orifice, the size of which is adjusted by a handle 72 which is clamped in position by a locking-handle 73. The orifice is eccentrically located at the mouth of a delivery conduit 62 so that the fibrous material may impact against the wall of the conduit and rebound to the opposite side repeatedly in a manner which is controlled to prevent steam escaping too quickly. The pulp is thereafter sprayed with water at 38 and delivered to a stock-chest 41 with a weir 42. The conduit 62 is in the form of an inner sleeve which may be replaced when worn. Specification 678,761 is referred to.
Patent GB-1340827-A (GB)
Title: Oxygen depolarizable battery
IPC: H01M4/02
Filed: 1972-06-12
Abstract: 1340827 Metal air cells ESB Inc 12 June 1972 [19 July 1971] 27386/72 Heading H1B An oxygen depolarizable battery comprises a pair of electrically non-conductive frames 1 (Fig. 5) sealed together to form an enclosed cavity whose front and back walls are formed by oxygen depolarizable electrodes 2 peripherally secured one to each frame 1, each electrode having an oxygen permeable surface, a catalytic surface and at least one positive current collector, at least one anode in the cavity in ionic contact with the catalytic surface and in electrical contact with at least one negative current collector. The frames may be nylon, ABS copolymer, epoxy resin or urethane foam. Electrodes 2 may be secured to the frames by adhesive but are preferably embedded as shown. The oxygen depolarizable electrode 2 may comprise a porous film (3) (Fig. 3, not shown) of hydrophobic material, e.g. fluorocarbon polymers or copolymers, catalytic layer (5) comprising as catalyst active carbon, noble metal or boron nitride particles, optionally having further catalytic material applied thereto, e.g. As, Au, Pr, Pd, a wetproofing agent, expanded nickel, silver or silverplated copper screen 4 functioning as current collector and absorbent separator layer 7, e.g. paper, matted fibre, cellulose acetate or the spacer forming the subject of Specification 1,339,107. The anode may be a suspension including a gelling agent of zinc, cadmium, iron or aluminium powder in potassium hydroxide solution or zinc, lead or antimony powder in acid solution. The mating frames 1 sandwich two copper anode current collectors 8 insulated by polymer film 9, and these are electrically connected to negative end cap 14 through spring 13. Extended portions of metal screens 4 are similarly connected to positive end cap 16 through spring 15, and the parallel connected assembly is held together by cover members 17. Alternatively a single anode current collector may be employed comprising an expanded metal screen (Fig. 6, not shown) or metal sheet (Fig. 7, not shown). A modification of the Fig. 5 arrangement (Fig. 8, not shown) provides a series connected assembly. Fig. 9 illustrates an assembly comprising four seriesconnected cells, the frames being constructed to provide two cavities each partitioned by a pair of current collectors and separating film as in the Fig. 5 arrangement.
Patent GB-261362-A (GB)
Title: Improvements in or relating to the distillation of carbonaceous material
IPC: C10B1/04
Filed: 1926-11-02
Abstract: 261,362. Karrick, L. C. Nov. 16, 1925, [Convention date]. R e t o r t furnaces, charging and discharging; air and gas heating furnaces. - In a coaldistillation plant the charge from hoppers 1 and auxiliary hoppers 4 is fed to retorts 6 situated between gas and steam preheaters, the rate of downward movement being controlled by discharge rollers 8 having arms 9, counterweighted rocking arms 11 allowing the residue to be fed downwards into hoppers 14. Preheated fuel gas is burnt in combustion flues 28 and passes down through vertical flues 30, across horizontal flues 33 and up flues 34 adjacent the retorts, from which by ports 35 and flues 36, 37 it passes down a chamber 38 having an air or gas preheater 39 each having two independent heating systems, one discharging into the combustion chamber 28 beneath it and the other into the chamber 28 of an adjacent system. Air or gas enters by pipes 40 and after being heated in pipes 42 is fed by ports 27 to the chamber 28. The upper part of the retort is made of cast iron, the high temperature parts of silica or carborundum brick, and the lower part of chrome iron or other metal.
Patent GB-483024-A (GB)
Title: Improvements in or relating to apparatus for timing x-ray exposures
IPC: H05G1/40
Filed: 1936-10-09
Abstract: 483,024. Valve relay circuits. STANDARD TELEPHONES & CABLES, Ltd., and SCAIFE, F. N. Oct. 9, 1936, No. 27472. [Class 40 (v)] [Also in Group XX] Relates to X-ray apparatus wherein exposure times are governed by the charging time of a condenser. To operate the tube the contacts p1, p2, p3 are closed by depressing the push-button P which is then held by a latch L. Simultaneously the contacts p4 are opened and a shunt resistance R4 is removed from the condenser C2. The tube current passes through the resistances R1 and R6. The voltage developed charges the condenser C2 through one of the resistances R2, R3, each of which is variable in steps to give different charging times. Either of two ranges of times may be selected by the switch S. A condenser C1 is provided to smooth out voltage surges. When the voltage on the condenser C2 reaches the breakdown potential of the neon tube N a discharge passes and the relay A is operated, closing the contacts a. This operates the relay B to release the latch L and the push-button P, and so switches off the X-ray tube.
Patent GB-1069526-A (GB)
Title: Condensation products of urea and aldehydes and process for making them
IPC: C05C9/02
Filed: 1964-07-03
Abstract: Granular fertilizers are obtained by co-condensing 2 moles of urea with 0.8-2 moles in total of a C3- 4 aldehyde and formaldehyde, the latter being 2.5-50 mole per cent of the total aldehyde.  In examples urea is condensed with isobutyraldehyde and formalin or paraformaldehyde, in the presence of H2SO4 and water, in an Eirich mixer or a granulating screw, to give granular products.ALSO:A granulated condensate is obtained by co-condensing 2 moles of urea with 0.8 to 2 moles of a mixture of aldehydes of which at least one is an aldehyde having 3 or 4 carbon atoms and one is formaldehyde, wherein the formaldehyde amounts to 2.5-50 mole per cent of the mixture, in such a way that the mixture is plastic throughout the reaction.  The aldehyde may be propionaldehyde or butyraldehyde, and the formaldehyde may be used partly or wholly in the form of paraldehyde.  The reaction may be conducted in, e.g. paddle screws, Eirich mixers, sigma-type kneaders, or rotary tubes, and catalytic amounts of mineral acids and water may be added.  In examples urea is reacted with isobutyraldehyde and formalin or paraformaldehyde with and without returns from previous batches, in the presence of sulphuric acid and water, in an Eirich mixer or a granulating screw. The products are used as fertilizers.
Patent GB-844708-A (GB)
Title: Improvements in merchandise cases
IPC: B65D43/26
Filed: 1957-09-02
Abstract: 844,708. Pilfer proof boxes. GILLETTE CO. Sept. 2, 1957 [Sept. 18, 1956], No. 27530/57. Class 18. [Also in Group XXV] A pilfer-deterrent box e.g. for a razor set comprises a plastics base 10 and a transparent cover 12 from which depends a flanged extension 18 forming part of latch, means deflectable inwardly for release, and a removable stiff sheet member 22 engaging part of the front wall 16 and an abutment 25 on the base 10 by means of cut edges 24, which prevents surreptious openings. The flanged extension 18 enters an opening 20 in part 17 of the base 10 which has a skirt wall 14 including the resilient front wall 16 separated from the part 17 by a slot. An arm 24 having a bevelled end corresponding to a surface on the extension 18 extends inwardly from the wall 16; the cover 12 is unlatched by pushing in this wall, after removal of the sheet member 22.
Patent GB-792188-A (GB)
Title: Improvements in or relating to mechanism for adjusting the angle of a cutting tool fixed in a holder, with respect to a guide element for the holder
IPC: B23D49/16
Filed: 1956-09-10
Abstract: 792,188. Sawing. SCINTILLA, Ltd. Sept. 10, 1956 [Sept. 21, 1955], No. 27625/56. Class 145. A reciprocating tool, such as a saw blade 4 in a motor-driven hand tool, is angularly adjustable relatively to its driving means by rotation of a member 9 carried by a block 7 reciprocated along guides 13 by a crank pin 6, the member 9 having an eccentric conical portion 11 fitting in a conical hole in a tool carrier 2. The adjustment ensures that the blade is parallel to a reference edge on a supporting foot 16, so that straight cuts can be made, and the adjustment is locked by a screwed sleeve 8 bearing on a flange 10 on the member 9.
Patent GB-408289-A (GB)
Title: Improvements in or relating to incubators
IPC: A01K41/06
Filed: 1932-10-06
Abstract: 408,289. Hatching - appliances. GLOUCESTER INCUBATOR CO., Ltd., and WRENTMORE, G. W., Woodchester, Stroud, Gloucestershire. Oct. 6, 1932, No. 27823. [Class 5 (ii).] An incubator comprises superimposed compartments b, c serving as incubating and/or hatching compartments, the compartments being spaced apart and a power shaft a, from which are driven fans i within the compartments, being arranged between the compartments, all the driving elements for said fans being disposed externally of said compartments. The fans are detachably mounted on stub shafts g connected to the shaft a by pulleys d, f and belts e or by sprocket chains or by gearing, and may be mounted on the side walls of the compartments, Fig. 2 ; or, the upper compartment may have a fan z, Fig. 4, mounted on the base of the compartment. The fan and pulley bearings may be mounted in adjustable bushes. Known heating means, ventilating means, humidifying devices or egg-turning means may be provided.
Patent GB-431762-A (GB)
Title: Improvements in and relating to electric converting apparatus
IPC: H02M1/04
Filed: 1933-10-10
Abstract: 431,762. Converting. BRITISH THOMSON-HOUSTON, CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitõts-Ges. ; 2, Friedrich Karl-Ufer, Berlin) Oct. 10, 1933, No. 27922. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 11, 1934]. [Class 38 (ii)] Relates to converting-apparatus comprising for example rectifiers 3<1>, 3<11> operating in parallel, the grids being controlled simultaneously from a phase shifting transformer 5 and consists. in the provision of means in the grid circuit of each rectifier for inserting an overriding D.C. potential which renders the rectifier either inoperative or fully conducting according to the polarity of the control potential. By this means, e.g. the rectifiers can be cut out when the load falls below a predetermined minimum. In the form shown in Fig. 1, a resistance-condenser combination 11<1>, 12<1> is connected in the grid circuit of each rectifier, the overriding D.C. potential being applied across this combination through a manually operated switch 13<1>. In a modification Fig. 2, an A.C. control potential is used, the resistance condenser combination 11<1>, 12<1> being supplied through an auxiliary discharge device 146. Two circuits are shown, one to give a positive bias and one to give a negative bias. In a modification grid controlled auxiliary valves are used.
Patent GB-891314-A (GB)
Title: Improvements in or relating to comminuting devices
IPC: B02C13/09
Filed: 1960-08-12
Abstract: 891,314. Centrifugal mills. PALLMANN, W., PALLMANN, L., and PALLMANN, A., [trading as PALLMANN KOMM-GES. LUDWIG]. Aug. 12, 1960 [Dec. 4, 1959], No. 27961/60. Class 59. A mill comprises a centrifugal wheel 8 for throwing material to be comminuted against plates 5, 5<SP>1</SP> of deflector shells 3, 10, the she 113 being rotatable in opposition to the wheel 8, and a frusto-conical guide 13 rotatable with the wheel 8 and forming, in effect, a continuation of an inlet opening 14, the inner edge of the guide being spaced from the rear wall of the wheel 8 to form an annular gap 16 through which the material can pass to a centrifugal chamber 17. The shell 10 is stationary and axially adjustable to vary the width of the annular outlet 11. In a modification, Fig. 2 (not shown), the shell 10 is omitted. The guide 13 may, alternatively, be stationary or rotatable independently of the wheel 8. Specification 704,954 is referred to.
Patent GB-1470816-A (GB)
Title: Device for measuring diameters
IPC: G01B5/12
Filed: 1974-06-24
Abstract: 1470816 Bore gauges MASCHINENFABRIK AUGSBURG-NURNBERG AG 24 June 1974 [10 July 1973] 27995/74 Heading G1M A known internal micrometer 5, Fig. 1, has feeler pins 6 mounting shoes or jaws 1 formed by radially slitting a cylindrical body just a little smaller in diameter than the thin tube to be measured. In Fig. 3 the jaws are stepped to enable different diameter tubes to be measured, and the step risers provide tube end stops.
Patent GB-735767-A (GB)
Title: Manufacture of elastomeric vinyl resin sheeting and films
IPC: B29C55/06
Filed: 1952-11-06
Abstract: Sheets or films of elastomeric plasticized vinyl chloride polymers or vinyl chloride-vinyl acetate copolymers having molecular weights of at least 10,000 and preferably of 16,000 to 25,000 (calculated by Staudinger's formula), are produced by hot-calendering the polymer or copolymer to form on the take-off roll of the calender a sheet or film having a thickness capable of resisting tearing at the calendering temperature, longitudinally stretching the sheet or film at or near its calendering temperature to reduce its thickness, and thereafter rapidly cooling the stretched sheet or film without further stretching during cooling.  The copolymers may contain up to 15 per cent by weight of copolymerized vinyl acetate.  The plasticizers may be commonly used types, for example alkyl phthalates, such as di-2-ethylhexyl phthalate, dicapryl phthalate and dibutoxyethyl phthalate; aryl and alkyl phosphates, e.g. tricresyl, triphenyl and tri-2-ethyl hexyl phosphate; and polyesters of polyhydric alcohols and fatty acids, such as triethylene glycol di-2-ethyl hexoate, the triethylene glycol esters of coconut oil acids, the polyesters of glycols and dibasic acids, e.g. diethylene glycol adipate and ethylene glycol succinate, and mixed esters such as 2-ethyl hexanediol - 1,3 - adipate - acetate.  The vinyl resin composition may contain lubricants such as zinc stearate, mineral oil, carnauba wax and other vegetable or mineral waxes and/or stabilizers such as oxides and inorganic and organic salts of tin, lead, bismuth, barium and calcium.  The calender may be of conventional type and the top roll and the offset roll may be maintained at a temperature between 130 DEG  and 200 DEG  C.  In an example about 60 parts by weight of a vinyl chloride-vinyl acetate copolymer resin having a molecular weight (Staudinger) of 24,000 and containing 4 per cent of vinyl acetate are blended and fluxed in a Banbury mixer with 28 parts of di-2-ethyl-hexyl phthalate, 1.5 parts of dibutyl tin dilaurate, 0.5 parts of stearic acid and 10 parts of titanium dioxide pigment.  The mixture is charged as a hot plastic mass to a four-roll calender in which the offset roll is maintained at 150-155 DEG  C., the top roll at 155-160 DEG  C., the middle roll at 160-165 DEG  C., and the bottom or take-off roll at 165-170 DEG C.  The plastic sheet formed on the take-off roll is stretch-pulled therefrom by a positively driven train of four conveyer rolls all rotating at the same peripheral speed but at a faster rate than the calender take-off roll.  The first two conveyer rolls are completely and the second two are partially submerged in an open tank filled with water or like liquid inert to the resin composition.  The temperature of the cooling liquid is preferably maintained below the "cold drawing temperature" of the plastic, but under good operating conditions may be as high as 90 DEG  C.  Specification 713,200 is referred to.
Patent GB-930294-A (GB)
Title: Process for the manufacture of water-soluble salts of sulphuric acid esters of leucoanthraquinone-azo-dyestuffs
IPC: C09B56/12
Filed: 1960-08-12
Abstract: Water-soluble sulphuric acid ester salts of dyes which, in the form of their free acids, have the general formula <FORM:0930294/IV(a)/1> in which in each anthracene nucleus one of the X's is hydrogen, chlorine or methyl and the other X's are hydrogen, are made by acylating a leuco ester of the formula <FORM:0930294/IV(a)/2> with 41-nitro-diphenyl-4-carboxylic acid chloride and reducing the product in an alkaline medium in two stages, first to yield a product at least partially in the azoxy-form, using reducing agents such as glucose or zinc dust, and then to yield a product wholly in the azo-form, using reducing agents such as sodium dithionite or sodium formaldehyde-sulphoxylate.  Examples are given.  Specification 312,243 is referred to.
Patent GB-728771-A (GB)
Title: Improved process for the filling of leather
Inventor: PLANT DONALD ARTHUR
IPC: C14C9/00
Filed: 1952-11-07
Abstract: 728,771. Filling leather. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 21, 1953 [Nov. 7, 1952], No. 28087/52. Class 76. In a process as described in Specification 583,096 wherein hides and skins are subjected to a tanning operation in conjunction with a drumming operation in an aqueous dispersion of a solid, finely divided polyvinyl chloride or a water-insoluble solid finely divided interpolymer of vinyl chloride with one or more ethylenically unsaturated polymerizable compounds in which vinyl chloride is present in preponderating amounts, the particles in the dispersion are of a size-not greater than 0.2Á. A dispersing agent, such as dinaphthylmethane disulphonic acid, may be used to stabilize the polymer dispersion.
Patent GB-774576-A (GB)
Title: Improvements relating to the illumination of instrument dials
Inventor: RUFF HAROLD ROBERT
IPC: G04B19/32
Filed: 1952-11-07
Abstract: 774,576. Electroluminescence. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 6, 1953 [Nov. 7, 1952], No. 28121/52. Class 39(1). Illumination for an instrument dial is provided by a band of electroluminescent material, its light falling on the luminescent dial or indicia and colour filter means, provided e.g., on the cover plate, absorbs any dispersed electroluminescent light but transmits the light from the luminescent material. The pointer 3 and indicia 4 are coated with luminescent material. The electroluminescent cell comprises a transparent conductive coating 8 e.g. aluminium or ion chloride, on electroluminescent layers 9 and a metal coating 10 with spring contact 11 and it is mounted on the upper surface of the cover glass 7 and held there by the flanged cover 5. The filter 12 on the cover glass is of a colour designed to absorb diffused or dispersed light originating from layer 9 and transmit light from the pointer and indicia. Specification 731,677 is referred to.