baber/WOPTO huggingface dataset:
Patent GB-866492-A (GB)
Title: Stabilisation of per-compounds
Inventor: AIKEN JOHN KEMPTON
IPC: C11D9/44
Filed: 1957-05-03
Abstract: Per-compounds, particularly sodium perborate, are combined with a water-soluble salt of a chelating agent having the general formula:- <FORM:0866492/IV(c)/1> where n is a positive integer.  The composition so formed may be combined with a surface active agent, which may be a soap or a sodium salt of a sulphonated higher fatty alcohol, to produce a detergent composition; a silicate such as magnesium silicate may be added to stabilize the chelating agent. The silicate may be formed in situ by reaction between magnesium chloride and sodium silicate.  Compounds referred to of the general formula given above are the sodium salts of diethylenetriamine-penta-acetic acid, triethylene tetramine-hexa-acetic acid and tetra-ethylene pentamine hepta-acetic acid or mixtures thereof.  Such acids and high homologues may be obtained by the exhaustive carboxymethylation of residues arising from ethylene diamine production.ALSO:Per-compounds and in particular sodium perborate, are stabilized by the presence of a water-soluble salt of a chelating agent having the general formula <FORM:0866492/III/1> where n is a positive integer.  The composition so formed may be combined with a surface active agent which may be a soap or a sodium salt of a sulphonated higher fatty alcohol to produce a detergent composition; a silicate such as magnesium silicate may be added to stabilize the chelating agent.  The silicate if desired may be formed in situ by reaction between magnesium chloride and sodium silicate.  Compounds referred to of the general formula given above are the sodium salts of diethylenetriamine-penta-acetic acid, triethylenetetramine-hexa-acetic acid and tetraethylene pentamine hepta-acetic acid or mixtures thereof.  Such acids and higher homologues may be obtained by the exhaustive carboxymethylation of residues arising from ethylene diamine production.
Patent GB-551806-A (GB)
Title: Improvements in or relating to friction clutches
IPC: F16D13/70
Filed: 1941-11-03
Abstract: 551,806. Friction clutches. BORG & BECK CO., Ltd., and GODFREY, L. P. Nov. 3, 1941, No. 14175. [Class 80 (ii)] Levers urging the pressure plate towards the driving member are attached to the clutch cover by spring members of resilient sheet metal. As applied, e.g. to the clutch of a motor vehicle, the flywheel 12 has, bolted thereto, a cover 10 within which is located by lugs 16 a pressure plate 15. Between the pressure plate and flywheel is a driven plate 18 the hub 19 of which is splined to the driven shaft. The clutchengaging springs consist of substantially U - shaped spring members 20 of spring sheet steel one limb 21 being bent to pass through a slot 23 in the cover to which it is secured by bolts 24. The other limb 25 has secured thereto one of the radial levers 26 one end of which engages a release bearing 30, the other end being curved at 28 to bear against the pressure plate. The members 20 are formed initially with their limbs converging towards the open end of the U, the free ends being forced apart when assembling the clutch by the engagement of the pressure plate with the ends 28. Stops 31 on the cover prevent the pressure plate from leaving the cover when the clutch is not bolted to the flywheel. The members 20 may be of Z-shape. Some only of the levers may extend to the bearing 30, such levers being then attached to the pressure plate in such a way that the plate is positively retracted. The levers turn about virtual fulcra.
Patent GB-1092389-A (GB)
Title: Molluscicides
Inventor: BARKER RONALD GEOFFREY
IPC: A01N33/02
Filed: 1966-03-31
Abstract: The invention comprises compounds of formula Ph3CNHR, where R is phenyl which is substituted either (a) by C2- 7 alkyl in the 3-position, or by C1- 7 alkyl in both the 2,4-positions, and a method of making them by heating Ph3COH with RNH2 in a polar aprotic solvent.  Examples of such compounds are those where R is 3-ethylphenyl or 2,4-xylyl; further compounds where R is 4-nitrophenyl, or 2- or 3-tolyl, are prepared similarly.ALSO:Molluscides have the formula Ph3CNHR, where R is phenyl substituted with C1-7 alkyl and/or nitro groups.  In examples, R is 4-nitrophenyl, 2- or 3-tolyl, 2,4-xylyl or 3-ethylphenyl. Compositions mentioned are emulsifiable concentrates, wettable powders, granules and solid briquettes based on plaster, cement or synthetic resin designed to slowly release the toxicant over a long period.
Patent GB-238652-A (GB)
Title: Improvements in or relating to umbrellas, sunshades or the like
IPC: A45B15/00
Filed: 1924-06-13
Abstract: 238,652. Beattie, W. H. T. June 13, 1924. No Patent granted (Sealing fee not paid). Covers; open-caps.-The cover of an umbrella or sunshade is detachable for the purpose of changing with another, being attached to a reinforcing ring which is clamped on the stick and keyed to prevent rotation. The cover 20, Fig. 2, is sewn to the flange 23 of the reinforcing ring 13, which is slipped over the top of the stick 1 so as to engage a shoulder on the top-notch 8, preferably with the interposition of a cloth disc 26, and a cap 27 is then screwed on to the end of the stick and by its edge presses onto a further disc 24 secured to the cover, thereby clamping the cover in position. The ring 13 is recessed at 12 to engage the head of a screw 11 and thereby register the cover with the ribs. The cover 20 is attached to the rib-tips 32, Fig. 5, by rings 34 on the former engaging slots 33 in the former, or by pins, hooks, or press-studs. Intermediate fastenings may also be provided, consisting of press-studs, flaps, or ribbon or the like. Either or both of the collars on the stick may be adjustable by screwing or otherwise, and either or both may be spring-pressed, so as to maintain the cover in tension.
Patent GB-1116610-A (GB)
Title: Improvements in the processes for the production of n-methylbutylamine
Filed: 1967-03-29
Abstract: N-Methylbutylamine is prepared by the catalytic hydrogenation, in the liquid phase, of mixtures of butyraldehyde and monomethylamine, the butyraldehyde being injected continuously into a reactive environment formed by a mixture of monomethylamine and an aqueous or aqueous alcoholic solution of sodium hydroxide. The sodium hydroxide solution preferably contains 0.1-10% by weight of sodium hydroxide and the molar ratio of monomethylamine/ butyraldehyde is suitably between 1 and 1.5. The reaction is suitably carried out at a pressure between 1 and 100 bars.
Patent GB-283055-A (GB)
Title: Improved method of producing a heat insulating material
IPC: C04B28/26
Filed: 1927-05-28
Abstract: 283,055. Westfelt, A. U. May 28, 1927. Nonconducting coverings for heat. - A heatinsulating material consists of waterglass which is subjected to a high temperature, so that it undergoes a considerable increase of volume. The waterglass, before it is heated, is mixed with a substance which develops gas when heated, such as potassium chlorate. In order to make the material more solid, pulverized incombustible material, such as a silicate, may be mixed with the waterglass.
Patent GB-395490-A (GB)
Title: Improvements in apparatus for delivering sliver into cans
IPC: B65H54/76
Filed: 1932-05-21
Abstract: 395,490. Delivering slivers into cans. LOW & CO., Ltd., J. F. and HARGROVE, J., Monifieth, Angus. May 21, 1932, No. 14479. [Classes 120 (i) and 120 (iii).] In apparatus for delivering sliver into one of two cans 1, 2, Figs. 1 and 3, and having provision for switching over the delivery from one can to the other, a stationary shoot or plate 3 is arranged to overhang at least in part the rims of the cans 1, 2, spaced rock shafts 6, 7 being disposed transversely of the plate and being linked by members 10, 11, 12 to move together, each shaft carrying a guide 8, 9 disposed above the plate 3 and toggle means 14 .. 17, Fig. 4, being provided to impart to the guides a snap movement about the shafts 6, 7. The toggle comprises arms 14, 15 on a rock shaft 16 the arm 14 being loose thereon and connected by a rod 13 to the link 12 while the arm 15 is fixed. A tension spring 17 is extended between the two arms. The toggle is thrown over by a rod 19 connected to an arm 18 fixed on the shaft 16 and actuated by a crank 20 through reduction gearing 21, 22 from a rotating element of the card or other machine the spring 17 serving to snap the loose arm 14 when moved across the dead centre position. Adjustable stops 23, 24 are provided to limit the rotation of the shaft 16 and thus of the guides 8, 9. In Fig. 4 the spring 17 has passed the dead centre and is on the point of moving the arm 14 to the left the stop 23 then coming into contact with the machine framing.
Patent GB-949178-A (GB)
Title: Means for controlling the actions of machine tools
Inventor: BATEMAN WILLIAM HENRY
IPC: G07C3/00
Filed: 1960-04-26
Abstract: 949,178. Machine-tool details. WICKMAN Ltd. March 9, 1961 [April 26, 1960], No. 14540/60. Heading B3B. [Also in Division G3] A coded tape automatically controls unspecified actions of an unspecified machine-tool, and also controls movement of a second tape which issues audible or visible instructions to the machine-tool operator as regards changes of speed, or of feed-rate, or of tools.
Patent GB-940635-A (GB)
Title: Magnetic core memory driving system
IPC: G11C11/06
Filed: 1962-04-16
Abstract: 940,635. Driving arrangements for magnetic storage matrices. E. T. BEAVIS (National Cash Register Co.). April ,16, 1962, No. 14583/62. Heading H3B. A matrix memory system has its column currents controlled through transistors by means of a switching matrix. In the embodiment described, the 2500 columns of a matrix are selected by linear selection through fifty read grounders and fifty read drivers and through - fifty write drivers and fifty write grounders, those driving the column 12 being RG and RD and WD and WG respectively. On switching the appropriate core 20 of a switching matrix S, a pulse is produced by the magnetic flux changing along line 26 (Fig. 4) which causes the read grounder RG to conduct and at the end of the read period a bias current causes the core 20 to switch back the flux travelling along line 29 and causing the write driver WD to conduct. The appropriate read driver RD and write grounder WG are controlled by core 20<SP>1</SP> of switching matrix S1. The read current source RC comprises a constant current source 32 and 34 which is normally shorted to earth by transistor 33 but on applying a signal V R  this transistor 33 is cut off and the current flows through the cores 12. The switching matrices are each controlled by 7 flip-flops L1-L7 which select the appropriate core, when a switching pulse V s  is applied by means of drivers and grounders selected by diode decoders. It is stated that the diodes 5 of Fig. 1 may be dispensed with by using a larger bias flux H B ,and half switching currents producing a flux H 5 1. The memory matrix may use thin films or ferrite toroids. A current is passed through memory cores 12 when read drivers RD and read grounder RG are switched on by pulses from switching matrices S and S<SP>1</SP> and when a pulse V R is applied to read current source RC. The current source RC comprises a constant current source, comprising a current limiting resistor, NPN transistor 32 and inductor 34, which is normally shorted to earth by PNP transistor 33. The pulse V R  cuts off transistor 33 and hence diverts the constant current through the memory system. Write currents are provided in a similar manner. Specification 807,700 is referred to.
Patent GB-401378-A (GB)
Title: Improvements in or relating to farm tractors
IPC: B60B35/10
Filed: 1932-05-23
Abstract: 401,378. Tractor wheels. MILLER, G. J., Court Lodge Farm, Chelsfield, Kent. May 23, 1932, No. 14615. [Class 144 (i).] For changing the front - wheel base - width of a tractor, a sleeve 1, secured over the axle-arm 5 by the usual wheel-securing nut 12, is formed with a collar 8 on which the wheel 4 is mounted and secured by bolts 13.
Patent GB-983564-A (GB)
Title: Improvements relating to change-speed gear mechanism
Inventor: SCOTT THOMAS CHARLES FELIX
IPC: F16H63/20
Filed: 1963-04-11
Abstract: 983,564. Change-speed control. VAUXHALL MOTORS Ltd. Feb. 6, 1964 [April 11, 1963], No. 14701/63. Addition to 935,501. Heading F2D. The manual gear-shift mechanism described in the parent Specification is modified by the selector spade 52 having recesses 54, 56 which are respectively engageable with a lug 74 of a - striker fork 70 for establishing 4th and 3rd ratios, and with lugs 76, 82 of a striker fork 72 for 2nd and 1st ratios and of a striker device for reverse. The interlock sleeve 60 is formed with circumferential grooves 66, 68 retaining the unselected strikers in their neutral positions, and has a transverse slot 64 engaged by a detent pin 64 projecting from the gearbox casing to locate the sleeve 60 axially and to limit its rotary movement. Specifications 971,394, 971,395 and 983,563 also are referred to.
Patent GB-297017-A (GB)
Title: A process for manufacture of forks and spoons
IPC: B21D53/62
Filed: 1927-06-01
Abstract: 297,017. Scheurmann, C. June 1, 1927. Spoons and forks are made from polished or stainless metal by a cold working process whereby the articles are stamped out in two parts and finished without further treatment of the metal. A polished or stainless blank b is pressed or rolled while cold and stamped to form a fork &c., a tapered tang d being then driven through the shank a after which a separately formed bolster e is driven on to the tapered tang.
Patent GB-435920-A (GB)
Title: Improvements in and relating to gas controlling devices for apparatus for heating liquids
IPC: F24H9/20
Filed: 1935-05-20
Abstract: 435,920. Fluid - actuated valves. JUNKERS & CO., GES., 35, Junkerstrasse, Dessau, Anhalt, Germany. May 20, 1935, No. 14709. Convention date, June 2, 1934. [Class 135] In a gas control device for liquid-heating apparatus having the main gas valve 11 actuated by the pressure difference due to a choke 20 arranged in the liquid path, a byepass 21, 18, 24 around the choke is formed partly by a control chamber 18 and is controlled by an auxiliary valve 23 arranged separately from the valve actuating diaphragm or piston 16 so as to control an opening 24 in the wall 25 dividing the chamber 18 from the liquid outlet 14. The choke is in the form of a Venturi tube 20 one end of which fits in a bore in the housing 29 of the valve 23 and the throat of which communicates through a sleeve 30 and a passage 19 with a second control chamber 17. The diaphragm 16 is pressed on its upper side by a spring 22 and seals round the end of the sleeve 30. The valve 23 opens against a spring 26 on the creation of an excessive pressure difference, so allowing liquid to pass through the bore 21 and chamber 18 to the outlet 14. The spring 26 abuts a removable cap 28.
Patent GB-744629-A (GB)
Title: Rotary electric switches
Inventor: GRIFFIN SIDNEY GEORGE
IPC: H01H19/64
Filed: 1953-05-27
Abstract: 744,629. Mechanical switches, without quick action. LUCAS (INDUSTRIES), Ltd., J. May 12, 1954 [May 27, 1953], No. 14734/53. Class 38(5) An electric switch assembly suitable for controlling the lighting and engine-ignition circuits of a motor vehicle comprises a pair of similar switches having contact members g, g, one of which is rotated by a handle q through a hollow spindle n and. the other by a key inserted in a slot s in a solid spindle r passing through the hollow spindle. The keyhole is normally closed by a rubber cap t having a self-closing slot u. The contact members carry spring contact blades h spaced around them, each blade being fixed to a contact member at one end and having a free end bearing against an inner face of an insulating body part a or b in both of which are inserted fixed contacts e having terminal screws f. The contact members are located by balls which are pressed by springs k into recesses in the body parts.
Patent GB-1421579-A (GB)
Title: Electrical precipitator
IPC: B03C3/86
Filed: 1973-03-27
Abstract: 1421579 Electrostatic precipitators AMERICAN AIR FILTER CO INC 27 March 1973 [27 March 1972] 14768/73 Heading B2J [Also in Division E2] In an electrostatic precipitator the discharge electrodes are carried by hangers 13 removably mounted on a current-carrying support 10 which has a plurality of tabs 11 projecting therefrom, the tabs being arranged in pairs lying in intersecting planes so as to define hanger-receiving slots between each of the tabs and the support. As shown, one tab may open towards the other tab of the pair, the two tabs being upwardly mutually divergent or, in an alternative embodiment, Figs. 5 to 8 (not shown), the tabs may open away from each other and be upwardly mutually convergent.
Patent GB-839359-A (GB)
Title: Improvements in fluid filters
IPC: B01D29/00
Filed: 1955-05-23
Abstract: 839,359. Filters. EATON-WILLIAMS, R. H. July 27, 1956 [May 23, 1955], No. 14803/55. Addition to 781,194. Class 46. [Also in Group XXVIII] In a fluid filter as claimed in the parent Specification and comprising one or more corrugated sheets 1 of filtering fabric e.g. woven cloth or wire gauge having its edges embedded in a surrounding frame 3 the latter is of moulded resilient or flexible material e.g. natural or synthetic rubber or a suitable synthetic resin e.g. polyvinyl chloride. The cloth or fabric is wound round or is attached to parallel spaced support rods 2 having their ends embedded in the frame 3 and the latter is clamped to a bracket 4 by a plate 5 and nut and bolt 8, 6. The Provisional Specification mentions the use of the filter for liquids. Specification 750,099 also is referred to.
Patent GB-568086-A (GB)
Title: Improvements in and relating to dough kneading pans
IPC: A21C1/02
Filed: 1943-09-09
Abstract: 568,086. Kneading dough. POINTON, J. E., and BAKER PERKINS, Ltd. Sept. 9, 1943, No. 14828. [Class 86] A dough-kneading pan of the kind described in Specification 502,105, which is mounted on wheels for convenience in moving it about the bakery, has two wheels 2 mounted on fixed axes 4 and the third wheel 5 mounted in a fork 9 movable about a vertical axis 7 and fitted with means such as an extension 10 with socket 11 for receiving a removable handle 12 by which the third wheel may be controlled in moving the pan from one position to another. The upper end of the handle may project over the rim of the pan to prevent closing of the cover 16, and thereby operation of the machine until the handle is removed.
Patent GB-706995-A (GB)
Title: Improvements in riddling or sifting apparatus for riddling or sifting soil, earth orsimilar materials
IPC: B07B1/30
Filed: 1951-06-22
Abstract: 706,995. Sifting-apparatus. HARGREAVES, P. W. June 23, 1952 [June 22, 1951], No. 14837/51. Class 117 An apparatus for sifting earth or the like comprises a rectangular wire mesh basket A stiffened around its lower edges by angle members and mounted for slidable movement on a framework of angle members B, b. The basket A is reciprocated in the framework by an.eccentric a<SP>1</SP> mounted on a spindle c and driven by a belt from the motor C, the basket being provided with a lug a<SP>2</SP> projecting through the framework and bolted to a plate a<SP>3</SP> which also forms a housing containing bearings for the eccentric a'. The framework B, b may contain a receptacle for the riddled material and the bottom of the basket A may be provided with imperforate strips along the sides and extending inwards and downwards to guide the material into the receptacle. Further strips may project outwardly from the sides of the basket to prevent material from falling between the slide tray and the frame. The legs remote from the end supporting the motor may be provided with adjustable feet B' for levelling the apparatus.
Patent GB-313724-A (GB)
Title: Improvements in or relating to securing rivets or the like in cast or moulded articles
IPC: F21V17/00
Filed: 1928-05-21
Abstract: 313,724. General Electric Co., Ltd., and Gorvin, G. W. May 21, 1928. Globe galleries; securing globes to galleries. - In a globe gallery of moulded or cast material which is provided after the moulding or casting operation with a metal insert passing through a hole in the wall of the gallery, a part of the head of the insert engages with a side of a recess in, or lug, projection, or the like on, one side of the wall to prevent relative rotation, whilst a shoulder on the insert engages one side of the wall and means are formed or provided on the insert, after insertion of the insert in the hole, to engage the other side of the wall and prevent longitudinal movement. In the form shown in the Figure, a gallery 2 provided with ventilating holes 3 is moulded from a composition comprising a phenol formaldehyde synthetic resin and a suitable filler. The gallery is provided on its inner surface with pairs of lugs 6 and on its outer surface with bosses 7 drilled with holes between each pair of lugs. The lugs 6 engage the sides of square heads 10 formed at one end of each tubular insert, the other end being spun over to form a radially-extending flange 11. The inserts may be turned from square brass rods, and are threaded internally to receive globe-holding screws 12. According to the Provisional Specification, each insert may be formed with an hexagonal head, one flat of which may engage the side of a ledge running round the inside of the gallery.
Patent GB-727949-A (GB)
Title: Improvements in or relating to the production of selenium rectifier plates
IPC: H01L21/10
Filed: 1953-05-28
Abstract: 727,949. Plate rectifiers. SIEMENSSCHUCKERTWERKE AKT.-GES. May 28, 1953 [June 19, 1952], No. 14934/53. Class 37. A selenium rectifier has the selenium layer produced by evaporating selenium simultaneously with an additional substance which has its vapour pressure maintained below 10<SP>-2</SP> mm. Hg, the substance influencing the crystallization of the selenium layer so that the internal region crystallizes faster than the surface zone. The added substance may be a liquid such as a mineral oil, tricresyl phosphate or chlorinated divinyl, or a semi-solid such as fat, wax or paraffin, or a solid such as sulphur, tellurium or carbon, which promote crystallization and are therefore applied only while the internal region is being formed. Alternatively, substances such as phosphorus, arsenic or antimony, which inhibit crystallization may be applied only while the surface region is being formed. Combinations or mixtures of these substances may be employed. The process can be carried out by having a vacuum chamber containing one evaporation vessel for the selenium and one for the additional substance with separate thermocouples and temperature controls. The vessel containing the substance may have a mechanical shutter. The materials are evaporated on to a heated base-plate in the chamber. The crystallization of the selenium layer may be effected by heat treatment after the application of the materials by evaporation. A tin-cadmium or tin-cadmium-bismuth counter electrode may be applied after crystallization, and heat treatment at 210 C. applied to provide a barrier layer between the selenium and the counter electrode. Electrical forming treatment may then be applied.