baber/WOPTO huggingface dataset:
Patent GB-1395176-A (GB)
Title: Tiles
IPC: E04B9/04
Filed: 1972-07-28
Abstract: 1395176 Laminates SOC DES LIEGES DES HAMENDAS ET DE LA PETITE KABYLIE 28 July 1972 [30 July 1971] 35382/72 Heading B5N A tile suitable for use in the production of a false ceiling is produced by reducing the moisture content of a central panel and a pair of facing panels, all of the panels being made of cork or cork agglomerate, and bonding the facing panels on opposite faces of the central panel with a reinforcement fabric of a material whose dimensions are substantially unaffected by variations in humidity arranged between the central panel and each of the facing panels. The reinforcement fabric may be of a non-inflammable material, e.g. glass cloth or metal cloth, and the panels may be bonded byathermosetting binder. The acoustic qualities of the tile may be improved by provision of perforations in a facing panel.
Patent GB-843764-A (GB)
Title: Improvements in or relating to vacuum pumping apparatus
Inventor: SADLER PETER
IPC: F04F9/00
Filed: 1955-12-09
Abstract: 843,764. Rotary pumps. N.G.N. ELECTRICAL Ltd. Dec. 7, 1956 [Dec. 9, 1955], No. 35474/55. Class 110 (2). [Also in Groups XXVIII and XXIX] A rotary pump comprises a circular casing 13 in which works a circular eccentrically mounted displacer 14 in contact with a sliding vane 15 on one side of which is an inlet 16 and on the other an outlet 17. The displacer is operated by a crank pin 18 which carries a pulley 19, outside the tank 11 in which the pump is mounted, driven by a V-belt from an electric motor 20. The pump is mounted in a tank 11 forming an oil vessel and has an adjustable oil inlet 24 on the suction side and the oil which finds its way into the pump is delivered with the air at the outlet. The pump is described when used with a vacuum pumping apparatus (see Group XXVIII). Specifications 825,524 and 825,525 are referred to.
Patent GB-917695-A (GB)
Title: Improvements in the cold separation of air
Inventor: ARMSTRONG MICHAEL
IPC: F25J5/00
Filed: 1960-10-17
Abstract: 917,695. Cold separation of air. BRITISH OXYGEN CO. Ltd. Oct. 10, 1961 [Oct. 17, 1960], No. 35556/60. Class 8(2). Compressed air to be rectified in a conventional column (not shown) is pre-cooled in an exchanger 1 traversed by reversely flowing waste nitrogen and is then divided into major and minor streams, the latter is further cooled in an exchanger 2 also traversed by reversely flowing waste nitrogen and is then expanded at a valve 5 to the rectification pressure whilst the major compressed air stream is expanded in an engine 3 with the performance of external work and a portion of the socooled and expanded air is warmed in an intermediate portion EF of exchanger 2 and is then returned to the parent stream prior to its expansion in an engine 4 to the rectification pressure after which the major and minor streams are united and fed to the rectification column.
Patent GB-886943-A (GB)
Title: Rotary clutch for use between rotary electric switches and their drive
IPC: F16D41/18
Filed: 1959-10-20
Abstract: 886,943. Ratchet clutches. NAIMER, H. L. Oct. 20, 1959 [Oct. 29, 1958], No. 35571/59. Class 80 (2). [Also in Group XXXVII] A ratchet clutch between a driving shaft rotated by a half-revolution magnetic motor which is returned by spring means to its initial position following each driving motion, and a driven shaft which actuates a series of switches (see Group XXXVII), comprises a driving hub 10 fast on the motor shaft, formed with partradial grooves 10a in which slide the ends 12b of pins 12a mounted for radial movement in slots 14a in an intermediate clutch disc 14, a driven clutch disc 11 having radial slots 13 which can be engaged by the pins 12a. The intermediate clutch disc 14 is restrained from rotation either by light friction engagement with a housing 15. On initiation of rotation of the driving clutch disc 10 in the direction of the arrow A, the intermediate clutch disc 14 is at first held stationary so that the inclined grooves 10a cam the pins 12b radially outwards into engagement with the slots 13. The driven clutch disc 11 then rotates, the rotation of the driving clutch disc 10 overcoming the friction resistance to rotation of the intermediate clutch disc 14, until the magnetic motor has performed its driving halfrevolution. The driving magnetic motor is finally restored to its initial position by spring bias, rotating the driving clutch disc 10 backwards, so that the pins 12a are drawn inwardly out of engagement with the slots 13, and the intermediate clutch disc 14 is itself restored to the initial position. To avoid transmission of a substantial torque through the relatively narrow pin ends 12b to the intermediate clutch disc 14, bolts &c. 10b carried by the driving clutch disc 10 engage in arcuate slots 14b in the intermediate disc, these latter slots being of a reduced length so that the bolts engage the driving ends thereof before the pin ends 12b have reached the ends of the grooves 10a. Parts of the clutch may be made from synthetic thermoplastics, such as polyamides &c. A cam roller 16 engaging the intermediate disc 14 may control a switch 17 in the circuit of the driving magnetic motor in such a way as to re-start the motor when the initial position has been reached, whereby a series of impulses are given to the driven clutch disc 11. The clutch according to the invention is described as applied to the drive of a multiple switch arrangement, disengagement of the clutch when the driving motor is stationary permitting the driven clutch disc 11 and the switch shaft fast therewith to be turned in either direction by a separate hand control knob. Specification 880,458 is referred to.
Patent GB-1501743-A (GB)
Title: Colour photographic light-sensitive silver halide materia
IPC: G03C7/00
Filed: 1975-08-28
Abstract: 1501743 Azo dyes FUJI PHOTO FILM CO Ltd 28 Aug 1975 [28 Aug 1974] 35597/75 Heading C4P [Also in Divisions G2 and C2] 1 - Hydroxy - 4 - {# - [4 - (1 - hydroxy - 3,6 - disulpho - 8 - acetamido - 2 - naphthylazo)phenoxy]- ethoxy} - 2 - N - fy - (2,4 - di - tert. - amylphenoxy) - propyl]naphthamide disodium salt is prepared by diazotizing 1 - hydroxy - 4 - [# - (4 - aminophenoxy)-ethoxy] - N - [y - (2,4 - di - tert. - amylphenoxy)propyl] - 2 - naphthamide, coupling the product with an aqueous methanol NaOH solution of 1 -hydroxy - 3,6 - disulpho - 8 - acetylaminonaphthalene disodium salt and acidifying with HCl. I - Hydroxy - 4 - {2 - hydroxy - 3 - [4 - (1 -hydroxy - 3,6 - disulpho - 8 - acetamido - 2 -naphthylazo)phenoxy]propyloxy} - 2 - (N - hexadecyl) - naphthamide disodium salt is prepared similarly using 1 -hydroxy - 4 - [2 - hydroxy - 3 - (4 -nitrophenoxy) -propyloxy] - 2 - (N - hexadecyl)naphthamide. 2 - Hexadecanamido - 4 - [4 - (1 - hydroxy - 3,6 - disulpho - 8 - acetamido - 2 - naphthylazo)phenoxy]- phenol disodium salt is prepared similarly using 4- (4-nitrophenoxy)-2-hexadecanamido-phenol.
Patent GB-349561-A (GB)
Title: Improvements in and relating to the preservation and storage of fruit and vegetables
IPC: A23B7/154
Filed: 1929-11-21
Abstract: Fruit and vegetables are preserved by treatment with acetaldehyde or its compounds or derivatives which retain the characteristic of aldehyde or yield aldehydes, such as acetal, chloral hydrate, or the bisulphite, sulphoxylate or ammonia compounds of acetaldehyde. Acetaldehyde may be added to the atmosphere surrounding the fruit &c. by opening a cartridge containing acetaldehyde or by strewing adsorbent substances containing acetaldehyde into the storage chamber.  The atmosphere may be controlled as to its oxygen, carbon dioxide or water content.  Acetaldehyde or its compounds may also be applied in solution or emulsion as washes for the fruit &c. or used to impregnate the wrappings or packing materials.
Patent GB-1013327-A (GB)
Title: Aluminium alloy for galvanic anodes
IPC: C23F13/14
Filed: 1964-09-01
Abstract: An aluminium based alloy for galvanic anodes comprises: .In.0.005-0.1% .Zn.0.5-20.0% .Cd.0.005-0.1% the balance, apart from impurities, being aluminium Specification 999,401 is referred to.
Patent GB-174836-A (GB)
Title: Improvements in or relating to devices or means for securing nuts to bolts and the like
IPC: F16B39/10
Filed: 1920-12-20
Abstract: 174,836. Butlers, Ltd., and Reeves, A. Dec. 20, 1920. Locking nuts.-A nut d is locked to a bolt b by an internally serrated conical washer a which is pressed into engagement with the bolt. Projections a<2> on the washer are bent into engagement with slots e<2> on an embracing washer e, which fits over the nut and lies flatways on the compressed washer a.
Patent GB-1319293-A (GB)
Title: Apparatus for lighting and ventilating rooms
IPC: F24F13/078
Filed: 1970-07-23
Abstract: 1319293 Ceiling ventilators W ZUMTOBEL [trading as ZUMTOBEL KG] 23 July 1970 [25 July 1969] 35691/70 Heading F4V A room lighting and ventilating unit for mounting in a ceiling comprises an inverted trough 5 which accommodates light sources 1 and has at least one side wall which forms a wall of a plenum chamber 6 and together with another wall 8 of the chamber 6 defines an air outlet slot 10, a lower edge 9 of the side wall forming an air deflector. The or each plenum chamber is connected to an air conditioning unit. A further plenum chamber 16 may commu nicate through apertures 21 in the trough 5 with the room to extract air therefrom. A stepped member 11 having apertures 19 defines a duct 13 above the slot 10 and a pivoted flap 14 together with the deflector 9 ensures that air emerges from the slot parallel to the ceiling. The unit is made of sheet metal or plastics.
Patent GB-1385017-A (GB)
Title: Article conveying systems
IPC: B61B10/02
Filed: 1971-07-29
Abstract: 1385017 Conveyer systems REDMAN FISHER ENG Ltd 18 July 1972 [29 July 1971] 35709/71 Heading B7L In a conveyer system of the kind described in copending Specification 1,385,016 each article carrier, as 11a is provided with a drive disengaging member 24 pivotally mounted on a pivot 25 thereon for movement between an inoperative position (as shown) in which the member 24 is clear of the diving and retaining dogs 16, 17 on the power chain and a drive disengaging position into which it is raised by engagement with an abutment 26 on the succeeding carrier 11 and in which position it serves to pivot the retaining and driving dogs 17, 16 out of engagement with the driving bar 13 of the carrier 11, thus disengaging the drive to the carrier 11 whilst the member 24 is held in its raised position by engagement with the abutment 26 on the carrier 11. Each member 24 is formed from two aligned and spaced parallel strips each having an ear 24b to receive the pivot 25, the strips being joined by webs 29, 30 providing surfaces for engagement with the driving and retaining dogs 16, 17 and the abutment 26 of the succeeding trolley respectively. The configuration of the upper web 29 is such as to provide a surface at the forward part of the member 24 which is downwardly inclined in a forward direction, i.e. to the left in Fig. 1, to allow gradual return of the dogs 16, 17 to their operative driving positions after passage over the member 24 to reduce wear and noise in use. The drive disengaging members 24 may be mounted at a greater distance from their associated carrier than shown in the Figure, such as for example by being mounted at the rear of intermediate trolleys connected by spacer bars to the rear of the carriers 11.
Patent GB-481922-A (GB)
Title: Improvements in and relating to electric supply systems
IPC: H02P1/02
Filed: 1936-12-30
Abstract: 481,922. Protective cut-out arrangements. WESTAWAY, C. Dec. 30, 1936, No. 35732. [Class 38 (v)] A number of lowvoltage load circuits as 4, tapped off a highvoltage overhead line 2 and protected by overload circuit-breakers 7, have loads 5 consisting, for example, of incandescent lamps, the " cold '' resistance of which is much less than the " hot '' resistance. An impedance 8 is normally short-circuited by the contactor 9, but when, on voltage-failure in the line 2, the no-volt relay 12 at once opens its contact 11 and deenergizes the contactor coil 10, the contactor 9 is released and the impedance 8 inserted in circuit. On restoration of voltage to line 2, the lamp-load 5 is supplied with a limited " warming-up " current through the impedance 8 ; meanwhile, the relay 12 closes its contacts 11 after a time-delay, so short-circuiting 8 and passing the full operating current to the lamps, the resistance of which is, by this time, nearly normal.
Patent GB-974273-A (GB)
Title: Improvements in the production of non-pyrophoric iron
Inventor: EBERHARDT JOHN ERNST
IPC: C22B1/24
Filed: 1961-10-04
Abstract: Non-pyrophoric iron is produced by reducing iron ore to pyrophoric iron powder, compacting the powder, heating the compacts to 1450-2200 DEG F., and cooling the compacts to room temperature, the process being carried out in a non-oxidizing atmosphere.  The ore may be reduced in a fluidized bed at 700-1100  DEG F. by hydrogen at a pressure of 200-600 p.s.i. Compacting and heating the compacts may be carried out in an atmosphere of nitrogen and the compacts cooled by quenching in water. The compacts are stated to be satisfactory charge material for open-hearth or electric refining furnaces.
Patent GB-435529-A (GB)
Title: A photo-electrical musical instrument
IPC: G10H3/06
Filed: 1933-12-20
Abstract: 435,529. Photo - electrical musical instruments. BECHSTEIN PIANOFORTEVERKAUFS - GES, C., 5, Johannisstrasse, Berlin. Dec. 20, 1933, No. 35858. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 23, 1934]. [Class 88 (ii)] In a photo-electric musical instrumeni having a constant source of light 1 and a light-sensitive cell 8 connected to ar amplifier 10 anc loud-speaker 11, the light-rays are modu lated by a single small rotating disc 3 bearing photographically produced concentric records of all the tones of a particular instrument. Lenses 2, 4 project magnified images on to the performer's fingers, or on to white plates 12 connected to the keys, whereby light corresponding to the notes played is reflected on to the cell 8. The light paths may also be controlled by shutters. A matt glass disc may be placed in front of the cell.
Patent GB-953577-A (GB)
Title: Method of and apparatus for increasing the temperature of frozen foods
Inventor: POUND JOHN PICKMAN
IPC: A23L3/365
Filed: 1961-10-05
Abstract: 953,577. Thawing frozen food. PYE Ltd. Oct. 3, 1962 [Oct. 5, 1961], No. 35889/61. Heading A2D. [Also in Divisions B8 and H5] The temperature of frozen food is increased towards thawing temperature by placing the frozen food in ice particles and passing the mixture through the field of a high frequency dielectric heater. Blocks of frozen fish 9, Fig. 2, or individually frozen fish received at a temperature of the order of -30‹F. to -20‹F. are placed in crushed ice 10 of higher temperature and passed on a belt conveyer 2 through a dielectric heating oven furnished with electrode systems 5, 6 and 7, Fig. 1, and a common passive electrode 8; side wills 13, preferably made of an insulating material with a low power factor, are disposed at the sides of the belt or supported over the edge thereof to provide an even contour of material. A scraper (not shown) prevents the level of the mixture of fish and ice from fouling the top electrodes of the oven and the particles of ice may be replenished at intermediate positions along the conveyer to compensate for melting. When the mixture reaches the unloading station 12 the fish temperature may have been raised to say 20‹F. suitable for sawing the blocks or fish into smaller sizes. In an alternative embodiment the mixture is conveyed through the oven in boxes or containers 14, Fig. 3, having a perforated base for the drainage of water produced by the heating and made of a material which is non-conducting and of low power factor, such as moulded fibre glass or polythene with a low filler content. Foods mentioned are fish, poultry, game, meat, offal, fruit and vegetables.
Patent GB-1087931-A (GB)
Title: Improvements in or relating to degreasing
Inventor: ASHWORTH NORMAN IVES
IPC: C11D3/14
Filed: 1963-09-14
Abstract: An article is degreased by the action of a stream of degreasing liquid above ambient temperature containing solid particles, the liquid being atomized with compressed air before impinging on the article.  The solid particles may be rigid and abrasive, e.g. uncoated glass beads, ballotini, alumina or silica sand, so that the article is simultaneously degreased and surface-finished, or alternatively they may be flexible, e.g. of leather or of textile material, particularly felt, to give a rubbing action which assists the degreasing.  The liquid is preferably an aqueous solution of an alkaline degreasing agent.
Patent GB-431907-A (GB)
Title: Improvements in and relating to methods of and means for electric arc welding
IPC: F21H1/00
Filed: 1934-12-18
Abstract: 431,907. Control systems for welding- arcs. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Dec. 18, 1934, No. 36287. Convention date, Dec. 23, 1933. [Class 38 (iv)] If the welding-arc exceeds a predetermined length the contact pointer 8 moves back to the contact segment 9 and closes a circuit through the coil 14 with consequent opening of the switch 5 in the supply circuit. The pointer is controlled by the coil 7 in accordance with the arc voltage or current. The switch 5 is biassed to the closed position by the spring 16 and is retained in this position by a latch 17. When the electrode 2 is put in contact with the work 1 to strike the arc the latch is lifted after a timelag by coil 18 the pointer 8 having meanwhile travelled from a to the space between the contact segment 9 and c.
Patent GB-750788-A (GB)
Title: Improved variable speed power transmission mechanism for motor vehicles
IPC: F16H61/56
Filed: 1954-12-15
Abstract: 750,788. Variable speed gear. GENERAL MOTORS CORPORATION. Dec. 15, 1954 [Jan. 13, 1954], No. 36336/54. Class 80(2) [Also in Groups XXIX and XXXI] A variable-speed power transmission for vehicles comprises a hydrodynamic torque converter including a reactor R having angularly adjustable blades 47 under the control of a device responsive to the operation of the accelerator pedal. An impeller P is fixed to a driving shaft 11, a first turbine T1 is connected to an internal gear 31, a second turbine T2 is fixed to a planet carrier 38 which is splined to the output shaft 15, and the reactor R is mounted on a shaft 19 by a one-way detent 49. The remaining element of the gear train is a sun gear 34 mounted on the shaft 19 by a one-way detent 36. Each blade 47 of the reactor R is secured to a shaft 51 having a crank arm 61 operatively connected to a piston 57. Liquid is supplied to the left hand side of the piston from a gear pump 24, driven by the impeller, through a passage 73<SP>1</SP>, a valve 81 and passages 73, 74, 72. The right hand side of the piston 57 communicates with the working chamber of the torque converter which is supplied by the pump 24 through a pressure reducing valve 100. Depression of the engine accelerator pedal 93 beyond a predetermined point depresses the valve 81 to connect the, passage 73 to exhaust. The piston 57 then moves to the left and the reactor blades are rocked to a high angle position, shown in dotted lines in Fig. 6, in which maximum'torque multiplication is obtained. The blades are prevented from assuming the high angle position at high vehicle speeds by a speed responsive lock-out mechanism (not shown) which closes the passage 73. In the raised position of the valve 81 the differential pressure on the piston 57 shifts the latter to rock the blades 47 to the low angle position, shown in full lines to obtain maximum coupling efficiency.
Patent GB-332868-A (GB)
Filed: 1929-11-27
Abstract: 332,868. I. G. Farbenindustrie Akt.- Ges. Nov. 27, 1928, [Convention date]. Secondary and tertiary aliphatic amines are prepared by passing the vapour of a primary aliphatic amine over a hydrogenating or dehydrogenating catalyst at a. temperature below 300‹ C., preferably 150-280‹ C. Catalysts mentioned are copper, cobalt, nickel and platinum. According to the Examples, (1) ethylamine vapour is conducted over a catalyst, prepared by the reduction with hydrogen of copper carbonate mounted on pumice, and containing about 6 per cent of the metal, at a temperature of 260-270‹ C. ; the product comprises a mixture of diethylamine and triethylamine, unchanged ethylamine being returned to the contact chamber; the use of a catalyst prepared by reduction with hydrogen of cobalt carbonate, carried on pumice, and temperature conditions of 220-230‹ C. leads to the same result; (2) a mixture of dibutylamine and tributylamine is obtained by passing butylamine vapour over the above-mentioned copper catalyst at 260-270‹ C. The treatment of methylamine is also referred to.
Patent GB-1243442-A (GB)
Title: A separator for separating entrained foreign matter from a gaseous current
Inventor: HOELTER HEINZ
IPC: E21F5/20
Filed: 1969-07-21
Abstract: 1,243,442. Centrifugal separator. H. HOLTER. 21 July, 1969 [29 April, 1969], No. 36506/69. Heading B2P. A centrifugal separator for removing impurities, e.g. dust or water particles, from a gaseous current comprises a housing 16 which encloses a tubular separator shell 23 having longitudinal slots 29 therein and which provides an impurities-collecting trough 31 beneath the shell 23, a number of helically-or spirally-arranged whirl producing vanes 20 with divergent passages therebetween being provided in an entry duct 14 leading to the interior of the shell 23. The duct 14 which is divergent is preceded by a divergent inlet 10. The vanes 20 are mounted on a conical deflector 19 having its apex 18 projecting into the inlet 10 and its base 17 provided with a boss 22 projecting into the shell 23. The latter is composed of cylindrical segments 25 which are circumferentially spaced apart to define the slots 29 and which are reinforced of circumferential hoops 26. Clean gases are discharged through a diffuser 30 and separated impurities which collect in the trough 31 are discharged through outlets 32 by a worm 33, flushed away by liquid circulated through the trough or sucked away by means of a sludge pump.
Patent GB-877521-A (GB)
Title: Method of producing concentrated coffee extract
Inventor: CLINTON WILLIAM PATRICK
IPC: A23F5/26
Filed: 1959-10-30
Abstract: 877,521. Coffee extracting. GENERAL FOODS CORPORATION. Oct. 30, 1959, No. 36993/59. Class 129. Coffee is extracted from spent or unused coffee by charging the coffee through lines 16- 21 into percolators 10-15 supplied with water through pipe 23 which passes from percolator to percolator through pipes 24-28 superheating such liquid by heaters 29-40 at the base of each percolator and drawing off the coffee liquid at 41 to be sprayed on a drying drum. The treating is done first in a cold stage in a group of percolators with water at 220-270 ‹ F. then in a hot stage with other coffee grounds then finally in a cooling stage. The heaters 29 &c. are supplied with steam to the required temperature and with cooling water at the end heater 40. The spent coffee can be discharged at bottom cocks 42. Specification 877,522 is referred to.