baber/WOPTO huggingface dataset:
Patent GB-579001-A (GB)
Title: Manufacture of new derivatives of 4:4-diamino-diphenylsulphones
Filed: 1943-05-27
Abstract: 4 : 41 - Diaminodiphenylsulphone derivatives which are soluble in water and which are less toxic than the parent material are obtained by treating 4 : 41-diaminodiphenylsulphone containing at least one unsubstituted amino group with an acetaldehyde disulphonic acid or a salt thereof.  One of the amino groups may, if desired, be substituted by the residue of an acid such as acetic acid or carbamic acid.  In examples: (1) the disodium salt of acetaldehyde disulphonic acid is reacted with 4-amino-41-acetylaminodiphenylsulphone in aqueous alcoholic solution; (2) the barium salt of acetaldehyde disulphonic acid is reacted with sodium sulphate in aqueous solution and the resulting sodium salt reacted with 4 : 41-diaminodiphenylsulphone.
Patent GB-1064563-A (GB)
Title: Improvements in counters
IPC: G06M1/276
Filed: 1964-03-02
Abstract: 1,064,563. Counters. DURANT MANUFACTURING CO. March 2, 1964 [May 16, 1963], No. 8640/64. Headings G4D and G4H. [Also in Division H1] Each denomination of a numeral wheel counter comprises an electromagnetic drive which advances the wheel 24 when the electromagnet 42 is de-energized. When current is supplied to the electromagnet an armature 86, coated by a layer 87 of non-magnetic material, rocks a lever 78 about pivot 84 counterclockwise to pull a spring-pressed pawl 92 behind the next tooth 74<SP>1</SP> of a ratchet wheel 74. Release of the magnet allows the lever 78 to return under spring action to advance the ratchet wheel 74, gear 23 and numeral wheel 24. The ratchet wheel 74 has a hair-spring detent 84 and an overthrow preventing lever 100 which is lifted clear of the wheel during the counter-clockwise movement of lever 78. Adjustment of stepping mechanism. The armature 86 is influenced by a spring yoke 96, adjustable by cams 98. Unevenness in the attraction of the poles of the magnet 42 is compensated for by the shape of the yoke 96, the outer wings of which are aligned with the pivot 90 of bracket 88 on lever 78. The cams 98 provide a coarse adjustment of the return force applied to lever 78, a finer adjustment by cam 104 acting on spring 102. Read-out, resetting and carry. Wheels 23, 24 carry wiper blades 36, 32 in off-set manner so that the contacts purane concentric paths 34<SP>1</SP>, 35<SP>1</SP> and 30<SP>1</SP>, 311 on printed circuit pads on the side-wall of the casing, Fig. 4. At digit 9 wiper 32 connects transfer pad 118 to zero pad 120 so that the tenth pulse passes over this path to the next denomination, stepping taking place at the end of the pulse. In this manner several transfers can be effected simultaneously. Resetting may be effected from any position by applying pulses across conductors 122, 124 until the wiper reaches zero pad 120. Readout is effected by wiper 36 the appropriate contact pads to bus pad 126. Bus pad 126 may be connected to the input in which case switching and read-out occur at different times.
Patent GB-556506-A (GB)
Title: Improvements in or relating to floats for aircraft
IPC: B64C35/00
Filed: 1942-06-24
Abstract: 556,506. Seaplanes. CARMICHAEL, J. C. June 24, 1942, No. 8694. [Class 4] A retractable float 1, Fig. 4, is carried by a fuselage or nacelle 4 in an inverted position so that the surface of the deck 12 merges into or forms a continuation of the lower surface of the fuselage or nacelle 4. Pivoted arms 5, Fig. 7, connected by a link 7 are swung downwardly by worm and wheel gear 37, 38 to lower the float 1 into operative position, the gears on the arms being connected by a chain and the arms being locked in their lowered position by a releasable latch 39. The floats are turned over by being rotated in the slings 18, carrying them from the arms 5, by means of a threaded motor-operated shaft 26 which drives forward a non-rotating helicallysplined shaft 24 working through a nut 30 fast with the float 1.
Patent GB-712045-A (GB)
Title: Apparatus for regulating the temperature of electrically heated elements
Inventor: POWELL ERNEST FREDERICK
IPC: G05D23/20
Filed: 1951-04-14
Abstract: 712,045. Interruptors. DUNLOP RUBBER CO., Ltd. April 4, 1952 [April 14, 1951], No. 8732/51. Class 38(5) [Also in Group XXXV] In an automatic temperature control system (see Group XXXV) in which an electric heater is energized intermittently with a variable " onoff " ratio, the supply interruptor consists of a contact stack actuated by a rotating cam, the position of the stack relative to the cam being adjustable. The stack 22, Fig. 2, is actuated by a continuously rotating swash-plate cam 77 and is mounted on a shaft 79 so that the cam follower can be moved towards the centre of the cam or towards its periphery by engaging the pulley on shaft 80 with one or other of the driving discs 'mounted on the shaft 78. In a second embodiment, Fig. 3, the cam 15 is generally cylindrical with a raised portion 15a to actuate the contact stack which is mounted on guide rails so as to be movable along the length of the cam by a screwed rod 23 reversibly driven by one or other of the. discs 29, 30. In a modification, Fig. 4 (not shown), the reversible drive is achieved by an idler gear. It is also stated that the cam and switch may be replaced by a drum having a part of its surface conductive, and a co-operating adjustable contact.
Patent GB-716493-A (GB)
Title: Improvements in and relating to tube testing machines
IPC: G01M3/28
Filed: 1951-04-16
Abstract: 716,493. Testing strength of pipes. HYDROPRESS, Inc. April 16, 1951 [April 26, 1950], No. 8772/51. Class 106 (2) A machine for subjecting tubes to internal fluid pressure tests has a compensating device enabling the relationship of the tube sealing heads to the tube ends to remain fixed irrespective of changes in length of the tube or the testing machine during a test. The tube to be tested is placed between sealing heads, at least one of which is movable inwardly relative to the other by a hydraulic motor so as to cause the tube to be engaged and sealed between the sealing heads. The compensating means is separate from said hydraulic motor and comprises a sealing head 14, Fig. 3, acting as a movable cylinder 21 on a plunger 24 secured to the sealing head carrier 25 at one end of the machine. As fluid is supplied under pressure through a bore 34 in the plunger 24 to a tube 14A under test, the said fluid pressure is caused to act on the cylinder in a manner moving it away from the plunger 24 should the test machine increase in length or the tube 14A decrease in length during a test. For this purpose the bore of the plunger 24 is larger than the exterior diameter of the tube 14A. A sealing ring 23 engages the exterior surface of the tube 14A and auxiliary pressure operated compensating means 36 are mounted on either side of the test head 21 to assist in the relative movement of the compensating device with respect to the sealing head carrier 25. A passage 35 in the plunger 24 provides an outlet for the test fluid should the cylinder 21 reach a predetermined position with respect to the plunger 24. In Fig. 5 a tube 47 under test embraces sealing elements 48 on a cylinder 46 movably mounted on a plunger 43. The internal fluid pressure in the tube 47 serves to move the cylinder 46 relatively to the plunger 43 should the stresses occuring during a test change the length of the tube or testing machine. If a tube 55, Fig. 6, with a coupling 56 at its end is to be tested, the sealing head 57 is provided with a coupling clamping mechanism 59 adapted to relieve the tube 55 of the end thrust set up on the coupling 56 by the pressure of the fluid on its end.
Patent GB-308353-A (GB)
Title: Process of rendering articles of copper or copper alloys resistant to corrosion and oxidation
IPC: C23C10/34
Filed: 1929-03-18
Abstract: 308,353. Laissus, J. March 22, 1928, [Convention date]. Cementation.-To render articles of copper or copper alloys resistant to corrosion &c., the articles are embedded in a powder comprising one or more of the elements chromium, tungsten, molybdenum, tantalum, manganese, silicon, nickel, cobalt, vanadium, titanium, uranium or zirconium, either alone or in the form of alloys, the powder being placed within a container which is in turn disposed within a second container containing a reducing or deoxidizing agent such as grey iron filings, powdered charcoal, or waste cementation powder and heated for a suitable period (e.g. 5-15 hours) and at a suitable temperature (e.g. 500-100‹ C.). Inert material such as silica or alumina may be added to the powder. The cementation process may be followed by heat treatment. The Specification as open to inspection under Sect. 91 (3) (a) states that the articles may be coated electrolytically and the coated article heated in a neutral or reducing atmosphere for a suitable period and at a suitable time. This subject-matter does not appear in the Specification as accepted.
Patent GB-369745-A (GB)
Title: Improvements in or relating to loudspeaker installations provided with a filter
IPC: H04R3/04
Filed: 1931-03-21
Abstract: 369,745. Valve amplifying circuits; impedance networks. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. March 21, 1931, No. 8791. Convention date, April 24, 1930. [Classes 40 (iii) and 40 (v).] The circuit of a loud-speaker 3 capable of reproducing the whole audio-frequency range includes a filter having a characteristic curve which falls more abruptly than that of the loud-speaker in the neighbourhood of the higher audio-frequencies. The filter preferably comprises series inductance coils L coupled to each other, and shunt capacities C. It may be on the primary or secondary side of the output transformer 1, 2 of a valve amplifier, and may be embodied in the loud-speaker structure or in the amplifier.
Patent GB-629012-A (GB)
Title: Improvements in or relating to the production of porous artificial stones for building purposes
IPC: B28B1/50
Filed: 1947-04-01
Abstract: Relates to a method of producing porous blocks wherein a mass of stone-forming composition in a mould is, after fermentation and while in a plastic state, divided to form the blocks.  According to the invention the mould is of a depth corresponding to the greatest dimension (e.g. the length) of the stones to be formed, and the mass is sub-divided by sawing in two directions perpendicular to each other.  Thus, the sawing may be effected by means of saws spaced according to the height and width of the blocks to be formed. Specification 599,731 is referred to.
Patent GB-239449-A (GB)
Title: Improvements in compressed air motors and the like
IPC: F01B1/04
Filed: 1925-04-02
Abstract: 239,449. Pressluftwerkzeug-und Maschinenbau Akt.-Ges., and Pallas, E. April 2, 1925. Compressed-air engines.-The exhaust is passed through the crankcase so as to cool the crankshaft and connecting rod bearings, which are lubricated from the hollow crankshaft. The engine comprises a rotary inlet and exhaust valve d for each cylinder, and supplementary piston-controlled exhaust ports k. The expanded air leaves the crankcase through openings m, which are protected by screens q and louvres n, the louvres being arranged to direct the air current away from the operator. In the case of an engine intended for use under water, the exhaust air is led to a pipe discharging above the water level through a hollow handle attached to the crankcase.
Patent GB-413818-A (GB)
Title: Improvements in inking mechanism for platen printing presses
IPC: B41F1/40
Filed: 1933-03-23
Abstract: 413,818. Printing - machines. HARRILD & SONS, Ltd., and RANGER, A. W., Fleet Works, Norwich Street, Fetter Lane, London. March 23, 1933, No. 8826. [Class 100 (ii).] Inking-apparatus.-In geared inking-mechanism for platen printing-presses, in which the inking-roller carriage is reciprocated over the forme and over an ink-distributing drum, the inking-mechanism being driven by a pinion on the carriage meshing constantly with a stationary rack on the press frame, and having means for interrupting the geared drive to the inking- rollers while these rollers are in contact with the inking-drum, the interrupting means comprises a clutch situated between the pinion and the inking-rollers. The forme is inked by rollers 9, Fig. 2, which, together with a rider roller 16, are mounted in a carriage 10, reciprocated over the forme and distributing-drum 4 by linkwork actuated by the movements of the platen. The rollers 9 are driven frictionally by the roller 16, which is itself positively driven from a rack 20 that drives a pinion 18 loose on the roller shaft and adapted to be clutched to the roller 16, for example by a dog clutch or by a friction clutch. Axial reciprocation of the roller 16 is effected by a cam surface 26 against which bears a roller carried by a pivoted lever 24, the other end of which engages the end of the roller 16, which is slidably mounted on its shaft, and in the case of a dog clutch the teeth are sufficiently long to allow for the axial reciprocation. As the carriage 10 moves towards the drum 4, the rollers 9 continue to be frictionally driven by the roller 16, which in turn is positively driven by the rack 20 until the inking- rollers are almost in contact with the drum 4, when the part 26<1> of the cam moves the roller 16 so far to the left that the clutch is disengaged and the roller 16 is no longer positively driven. The clutch is re-engaged during the forward movement by a compression spring mounted on the roller shaft. The spindles 30, Fig. 4, of the inking-rollers 9 are journalled in blocks 31 free to slide in inclined slots 32 in the sides of the carriage 10, and the blocks are retained in the slots by keepers 33, pivoted at 34 to the carriage and provided with adjusting-screws 35 bearing on the blocks 31. A compression spring 36 on a rod 37, which passes loosely through eyes 38 on the keepers, holds the latter in position, and the inking- rollers 9 may be adjusted accurately relative to the forme and rider 16 by means of the screws 35. The rider may be omitted, the two inking-rollers being geared together, and one being provided with a clutch, whereby the roller may be clutched to a gear positively driven from the rack 20 while passing over the forme, but disengaged therefrom while in contact with the distributing-drum.
Patent GB-472817-A (GB)
Title: Washing machines
IPC: D06F13/00
Filed: 1936-03-25
Abstract: 472,817. Washing-machines. BARKER, P. E. March 25, 1936, No. 8907. Convention date, April 3, 1935. [Class 138 (ii)] The agitator 36 is secured to a casing 5 wherein is housed an electric motor 4 geared by a pinion 6 to gear-wheels 7, 8 mounted on pins 9, 10 which are carried by a plate 29 secured to the motor housing 11. The pins are also secured by screws 20, 21. to the casing 5. The gear-wheels 7, 8 are provided with unbalanced weights 15. 16, 17, 18 on their rims whereby the rotation of the gear-wheels about their axes 9, 10 cause to-and-fro movement of these axes along arcuate paths with the motor shaft as centre. The swinging motion is transmitted to the agitator. To cushion the agitator towards .the end of its stroke in either direction and to move it rapidly in the reverse direction leaf springs 25, 26 are provided to coact with abutments projecting downwardly from a dished plate 19 secured beneath the agitator and with fixed abutments projecting upwardly from the tub bottom. In a modification, the motor and gearing are housed in a rotatable casing positioned outside and beneath the washing tub and in a further modification wherein the motor is housed within the agitator, the device is carried by an overhead cross-bar which is removably clamped across a tub.
Patent GB-1115685-A (GB)
Title: Isobutylene-vinyl chloride-copolymers
Inventor: BARTL HERBERT
IPC: C08F10/00
Filed: 1967-02-24
Abstract: Vinyl chloride - isobutylene copolymers are described having an intrinsic viscosity of 0.7-1.5 and an isobutylene content of 0.3-3% by weight.  They are obtained by copolymerizing in bulk or aqueous dispersion a mixture of 0.5-3.5% of isobutylene with 99.5-96.5% of vinyl chloride at 20-60 DEG  C. with a monomer soluble catalyst, e.g. azodiisobutyronitrile, acetyl cyclohexane sulphonyl peroxide, diisopropyl or dicyclohexyl peroxydicarbonate, dilauroyl peroxide or tert.-butyl perpivalate. Dispersion polymerization is effected using a protective colloid, e.g. methylcellulose and buffers to maintain a pH of 3-11.
Patent GB-744776-A (GB)
Title: Improvements in or relating to cathode-ray tubes
IPC: H01J29/28
Filed: 1953-04-01
Abstract: 744,776. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 1, 1953 [April 4, 1952], No. 9058/53. Class 39 (1). A layer of pure magnesia less than 1000 Š thick is applied to the luminescent screen of a cathode-ray tube on the side adjacent the cathode to increase the secondary emission. The magnesia may be applied by evaporation of magnesium in vacuo followed by oxidation, in accordance with Specification 744,808, in which case it is possible to combine the oxidation process with the burning out of the binder of a graphite coating on the sides of the tube. Alternatively a layer of magnesia can be deposited from a cloud of magnesia in accordance with Specification 744,807, [Group II].
Patent GB-1363985-A (GB)
Title: Bisstable resistance devices
IPC: H01L45/00
Filed: 1972-02-29
Abstract: 1363985 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 29 Feb 1972 [29 March 1971] 9195/72 Heading H1K A bi-stable resistance device comprises an insulator doped with impurities forming conduction centres to a concentrate of 10<SP>18</SP> to 10<SP>21</SP> atoms cm.<SP>-3</SP> and a pair of electrodes. The dopants in the active layer enable the device to be produced in an "as-formed" state so that the conventional forming step is unnecessary. The device may comprise a sapphire or semiconductor substrate on which a metastable Nb-Bi alloy is deposited to form a base electrode. A native oxide of this electrode is produced, e.g. by anodization and a Bi counter electrode is deposited. The oxide layer comprises Nb 2 O 5  doped with Bi and the impurities may be uniformly distributed or arranged in plural paths between the electrodes. The base electrode may be produced by sputtering using a target of Nb on which are evaporated Bi dots. Alternatively a base electrode comprising Nb or Nb-Sb alloy is provided with an oxide layer by anodizing, plasma anodizing or thermal oxidation and a counter electrode of Sb is applied. Heating the device diffuses Sb into the oxide layer from the counter electrode. Devices may also be produced using Ta-Bi alloy as the base electrode. A table is given of suitable materials for the electrodes and the active layer. The base electrode may be sputtered or evaporated on to the substrate and the impurity may be introduced into the active layer by oxidation of the base electrode, by diffusion or ion implantation, or by co-deposition. The active layer may be annealed before the counter electrode is applied by evaporation or sputtering. The base electrode may also comprise a Nb-Bi layer on a Nb underlayer. As shown, Fig. 4, a memory matrix comprises a P-type Si substrate 26 into which are diffused N-type drive lines 28 extending parallel to one another. Individual P-type regions 29 are diffused in at each cell location and are contacted by base electrodes 10a which are provided with doped active layers 12. The counter electrodes are provided by conductive tracks 10b which also form drive lines extending perpendicularly to the lines 28. Each memory cell therefore comprises a bi-stable switch in series with a PN diode which interrupts sneak paths. Information is stored using a coincident pulse technique and non-destructive read-out of a selected cell is achieved by applying a small sense pulse to the appropriate diffused drive line and connecting a sense amplifier to the counter electrode drive line.
Patent GB-222292-A (GB)
Title: Improvements in or relating to the waterproofing of fabric articles
IPC: D06M13/02
Filed: 1923-04-03
Abstract: 222,292. Harrington, A. G. April 3, 1923. Waterproofing; proofing compositions.-Fabric articles made up by stitching are proofed after stitching by the known process of impregnation with a solution of paraffin wax. The solution may contain a small proportion of trichlorethylene. Specifications 9746/94, 18144/96, and 22104/98 are referred to.
Patent GB-116500-A (GB)
Title: Improvements in or relating to Toy Pistols.
IPC: F41C3/08
Filed: 1918-06-04
Abstract: 116,500. Edwards Manufacturing Co., (Assignees of Brown, S. B.). May 8, 1917, [Convention date]. Pistols firing amorces or caps. - Relates to automatic toy pistols in which a tape of percussion caps is acted upon by feeding or firing mechanism, and consists in mounting the operating-mechanism in a box-like skeleton frame which is secured within the casing of the pistol, and in providing means for deflecting the fire of an exploded cap to prevent premature ignition of an unexploded one. The frame A, Fig. 4, is composed of three plates 10, 11, 12 forming one side, a 'bottom rail 13 and tie-bars 14, 15 forming the other side, and a top shelf or anvil plate 16, all connected by transverse webs to form an integral structure which is secured within the casing section B, Fig. 1, by bending a series of ears 1 on the casing over the frame. The paper web 20 carrying the percussion caps is mounted on a stud 16 on the plate 10 and is fed along under the plate 16 by a feed-pawl 36, a leaf-spring 21 preventing any backward movement. The trigger and hammer members 30, 55 are pivoted on studs 17, 18 respectively carried by the plate 11, and coil springs 40, 53 press the members sideways against the plates and bars of the frames A. The bifurcated lower end of the feed-pawl 36 seats against a pivot seat 34 on the trigger member .30, and its upper end rests against the underside of the tape 20. The circular tension of the spring 53 tends to return the hammer head forcibly against the plate 16 to explode the caps. As the trigger member 30 is operated, the trip projection 32 engages the finger 51 of the member 55 and rocks the hammer until the projection leaves the finger and releases the hammer. On the return stroke of the trigger member, the finger 51 wipes over the finger 35 and projection 32. The hammer head, from the striking crown 61, is inclined forwardly and downwardly so as to form with a rib 63 on the plate 16 a diverging throat 64 for directing the fire of the exploded cap towards the muzzle opening D. The heel of the hammer head is sharply inclined rearwardly and downwardly, and a rib 60 is provided on the plate 16 so as to direct any fire past the crown 61 of the hammer head downwardly away from the next succeeding cap. Should the pistol be fired with the cover C open, the fire is directed downwardly by an extension 65 provided on the plate 16.
Patent GB-291565-A (GB)
Title: A process for the manufacture of quinine solutions
IPC: A61K47/10
Filed: 1927-04-04
Abstract: 291,565. Dehn, F. B., (Chemisch-Pharmazeutische Akt.-Ges.). April 4, 1927. Addition to 266,209. Hypodermic injections; inhalations. - In the process for preparing solutions of basic quinine in oils by means of terpenes, as described in the parent Specification, the solvent effect of the terpenes is increased by the addition of fat-soluble alcohols. Alcohols specified are higher aliphatic alcohols such as octyl alcohol CH3(CH2)5CHOH. CH3 and decyl alcohol CH3(CH2)8CH2OH, and aromatic alcohols such as benzyl alcohols, phenyl ethyl alcohol. and cinnamyl alcohol; oils specified are olive oil, sesame oil, paraffin oil, and wool iat; terpenes specified are cineol, oil of turpentine, and eucalyptol. Other drugs such as alkaloids may also be added. The remedies may be used for injection or inhalation.