baber/WOPTO huggingface dataset:
Patent GB-1433036-A (GB)
Title: Zinc electroplating bath
IPC: C25D3/22
Filed: 1973-04-17
Abstract: 1433036 Electro-plating zinc MINNESOTA MINING & Mfg CO 17 April 1973 [17 April 1972] 18535/73 Heading C7B An aqueous Zn electro-plating bath comprises 4-75 g/l of Zn ion and 4-90 g/l of NH4 ion, as chloride, sulphate, fluoborate and/or acetate, providing 15-200 g/l of anions in molar amount at least equal to the combined molar amount of Zn and NH 4  and at least 15 g/l of chloride and/or fluoborate anion; and 2-45 g/l of ethylene oxide/ propylene oxide block copolymer optionally mixed with an anionic N-(alkyl sulphonyl) glycine compound, as surfactants, further optionally mixed with other surfactants, e.g. a condensate of naphthalene and sulphonic acid or an imidazoline derivative. The bath may also contain aryl, tetrahydro ring halogenated, heterocyclic, carbocyclic, or aliphatic aldehydes or ketones as brighteners, e.g. o or p chlorobenzaldehyde, benzylidene acetone, coumarin, thiophene or cinnamic aldehyde, glutaraldehyde, beta-ionone or tetrahydrobenzaldehyde. The pH of the bath is adjusted to 3-6À3 by NH 4 OH or HCl.
Patent GB-754976-A (GB)
Title: Halo-vinyl ether and polymer thereof
IPC: C08F16/24
Filed: 1954-06-25
Abstract: A rubber-like polymer of 1-fluoro-2,2-dichlorovinyl methyl ether (CH3O : CF = CCl2) is prepared by treating the ether with boron trifluoride in the presence of a solvent. Separate solutions of the ether and boron trifluoride in liquid propane at -60 DEG  C. are mixed at this temperature.  The temperature is then allowed to rise to -42 DEG  C., the propane then boiling off, leaving the polymer.ALSO:The invention comprises 1 - fluoro - 2,2-dichlorovinyl methyl ether.  This compound may be prepared by reacting molten alkali with 1,1-difluoro-2,2-dichloroethyl methyl ether, preferably at a temperature above 200 DEG  C., say between 217 DEG  and 262 DEG C., using a molten mixture of potassium and sodium hydroxide, or between 338 DEG  and 365 DEG  C. using molten sodium hydroxide. Nitrogen may be introduced into the mixture to cause turbulence and provide an inert atmosphere.  1,1-Difluoro-2,2-dichloroethyl methyl ether may be produced by reacting methyl alcohol with 1,1-dichloro-2,2-difluoroethylene in the presence of sodium as a catalyst.
Patent GB-1085490-A (GB)
Title: Method of retaining a bearing
IPC: F16C33/08
Filed: 1966-04-29
Abstract: 1,085,490. Bearings. BLACK & DECKER MANUFACTURING CO. April 29, 1966 [Oct. 21, 1965], No. 18835/66. Heading F2A. In a method of retaining a bearing between separate housing members, at least one of which is provided with a bearing seat, an elastomeric material in a substantially plastic state is provided in a space between the bearing and its seat and the housing members are secured together. The elastomeric material may be deformed at least partially in conforming to the space between the bearing and its seat and is cured to a substantially solid state to provide a resilient bearing support. In an embodiment, a housing comprises upper and lower members 10, 11, Fig. 1, the upper member 10 being provided with a radially-enlarged bearing seat 14 and the lower member 11 being provided with a bearing seat 13. The elastomeric material 17, which is in a substantially plastic state, is forced into the space between a bearing 15 and the seat 14 of the upper member is cured in situ. The metal to metal contact of the bearing 15 with the bearing seat 13 of the lower member conducts heat from the bearing to the housing. In a modification, a rubber plug 18, Fig. 3, is seated in a semi-cylindrical recess 19 into upper member 10, prior to the application of the elastomeric material 17, and forces the bearing 15 into the seat 13 in the lower member 11 so as to effect centring of the bearing.
Patent GB-335242-A (GB)
Title: Improvements in or relating to paints
IPC: C09D5/14
Filed: 1929-06-19
Abstract: 335,242. Wade, H., (Lackwerke Japonika Ges.). June 19, 1929. Paints and coating-compositions.-A bactericidal paint is made by adding to an oil paint or varnish, or to a cellulose or resin coating-composition, a phenolic derivative of an aromatic hydrocarbon, excluding carbolic and cresylic acids. Phenol homologues with branched side chains, or the phenols of condensed nuclei are particularly suitable. 3-6 per cent or the bactericide is added direct or in solution in benzine or turpentine oil, so that the content in the dried paint may be up to about 20 per cent. The pigments used are preferably neutral or acid, such as titanic acid or zirconium oxide.
Patent GB-596177-A (GB)
Title: Improvements in carbon transfer inks
IPC: C09D11/12
Filed: 1945-07-23
Abstract: Carbon transfer inks have incorporated therein an oxidised wax, e.g., a vegetable wax such as candelilla wax, or a mineral wax such as paraffin wax.  The wax is oxidised in a tank 1 heated by a burner 2 to a temperature between the melting and flash points, and in the presence of up to 10 per cent. by weight of a catalyst, and heated air produced by a blower 5 and heater 6 is bubbled through the melted wax.  The catalyst may be manganese and cobalt linoleates, naphthenates, and resinates, or <PICT:0596177/III/1> salts and oxides of cobalt, nickel, iron, and other metals having dual valencies.  The oxidised wax contains long chain fatty acids.
Patent GB-222071-A (GB)
Title: Improvements in or relating to submarine mines
IPC: F42B22/10
Filed: 1923-03-13
Abstract: 222,071. Elia, G. E., and Vickers, Ltd. March 13, 1923. Mines, marine. - Relate-. to submarine mines of the kind described in Specification 218,334 in which the mooring cable is wound on a drum the axis of which, after launching, moves from the vertical to the horizontal position to facilitate paying out. According to the present invention, the movement of the drum through 90‹ is caused bv a movement of the sinker as a whole. The mine A, sinker B, and plummet. Q are shown in Fig. 1 supported on launching rails R<1>. After launching, the drop of the plummet Q automatically releases the link W to cause the mine to separate from the sinker, the latter passing to the vertical position shown in Fig. 3. The sinking is effected by the automatic flooding of the sinker and by the weight Z. The plummet Q through a lever R holds a pawl out of engagement with the drum B' which rotates on a. spindle p<4> to pay out the cable until the plummet grounds, when the pawl under the action of a spring locks the drum. The auxiliary firing.devices on the cables D, E are of the kind described in Specification 221,580. Specification 18986/99 is also referred to.
Patent GB-394140-A (GB)
Title: Improvements in electrical resistance connectors
IPC: H01C3/00
Filed: 1932-07-05
Abstract: 394,140. Wire resistances; couplings. LONDON ELECTRIC WIRE CO. & SMITHS, Ltd. and KLEIN, S. B., 7, Playhouse Yard, Golden Lane, London. July 5, 1932, No. 19022. [Classes 37 and 38 (i).] A flexible resistance connector, particularly for use in wireless receiving circuits, comprises a flexible and flat insulating strip around which a fine gauge resistance wire is wound, terminal tags for the ends of the wire winding being firmly secured to the ends of the strip. The strip may be of insulating material such as paper or presspahn, or mav consist of a flat metal core coated with insulation. In the construction shown in Fig. 1, a strip 1, wound with resistance wire 2, is enclosed in a flexible tubular fabric covering 6 and has terminal tags 3 secured to its ends, pairs of lugs 4, 5 on the tags being clinched respectively around the ends of the strip and the covering. The lugs 4 also grip the ends of the wire winding 2. To reduce the length of the connector, the wound strip 1 may be folded into the zig-zag form shown in Fig. 3, contact between turns of the wire in the overlapping sections of the strip being prevented either by covering the wound strip before it is folded, with cotton, paper, silk, or like insulation, or by inserting insulating strips 7 between the. sections. The ends of the sections may be bound together and the whole enclosed in a flexible fabric cover.
Patent GB-831932-A (GB)
Title: Tantalum-columbium alloy
IPC: C22C27/02
Filed: 1958-06-13
Abstract: An alloy of good corrosion resistance and mechanical strength at high temperatures has a composition within the following range in per cent by weight: Cr 5-20, Ta 10-94, Nb the balance, at least 1.0 The alloy may also contain the following impurities in the stated proportions: C up to 0.5, O up to 0.8, N up to 0.2, Fe up to 5,0.  The alloy may be used in the form of parts of gas turbine and internal combustion engines, heat exchangers and as linings for retorts and other containers in the chemical and metallurgical industries.
Patent GB-404280-A (GB)
Title: Improvements in potato planters
IPC: A01C9/02
Filed: 1932-07-06
Abstract: 404,280. Planting-machines. PATE, J., Emmock, Mains Parish, Dundee. July 6, 1932, No. 19080. [Class 6 (i).] In a potatoplanting machine of the type in which an endless chain of buckets takes the potatoes from a hopper and tilts them into a delivery tube, each bucket is constituted by a pair of co-operative halfbuckets 6 which are caused to approach and recede from each other in the operation of the machine, the halfbuckets on one side being each carried by a chain link of a chain 1 and the half buckets in the other side being each carried by a chain link of another chain 1 alongside. The chains pass round sprocket wheels ; the sprocket wheels 2, 3 at the forward end of the machine may be mounted on a shaft 4 driven from the travelling wheels of the machine and the distance between the wheels 2, 3 and therefore of the links may be adjusted by means of screw-threaded studs, pins &c. 5. Each halfbucket is connected to the links by a neck-part 7 which passes through a gap 10 in the bottom of the usual conduit 8 extending from the potato hopper (not shown) to the delivery tube 9. A pair of spaced longitudinal strips 11 may be secured on the bottom of the conduit, one on each side of the gap 10, the strips being adjustable transversely of the gap and closer together at the delivery end of the conduit than at the other so that in the travel of the chains after the half-buckets have engaged a potato the half-buckets are caused to approach one another to grip the potato. In the return flight of the chain the gap between the two series of links is widened so that the half-buckets can move apart to release the potatoes ; at the hopper end of the machine a plate member carried by the frame of the machine may be interposed between the series of links to ensure that the links are spread apart. The links may be connected together with play to permit the half-buckets to accommodate themselves to different sizes of potatoes.
Patent GB-1506953-A (GB)
Title: Medicated tampon
IPC: A61F13/24
Filed: 1975-05-07
Abstract: 1506953 Catamenial tampons PROCTER & GAMBLE CO 7 May 1975 [13 May 1974] 19106/75 Heading A5R  A medicated catamenial tampon 15, Fig. 2, comprises a resilient foam body 10 and a hydrophobic non-woven overwrap 11 which is permeable to vaginal fluids and carries stripes 12 of a therapeutically active agent for the control of vaginal disorders in a lubricant which is soluble in vaginal fluid and which has a melting point above normal vaginal temperature, i.e. 37C, but below 50C. The lubricant may comprise polyethylene glycol, polyethylene-4-sorbitan monostearate, polyoxyl 40 stearate, or mixtures thereof. The active agent may comprise nystatin, other examples being given in the Specification. The body preferably comprises polyurethane foam and, following compression and insertion of the tampon into the vagina, the tampon expands to conform to the vaginal wall, the overwrap being loose around the foam and being soft, flexible and biodegradable with small apertures therein. A withdrawal string 14 is provided. Inserters. A telescoping tuber type polyethylene inserter 17, Fig. 1, having inwardly tapering flexible segments at the leading end to form a normally closed, smooth leading end, is provided.
Patent GB-670588-A (GB)
Title: Improvements in shoes to be used on skis
IPC: A63C9/086
Filed: 1948-07-16
Abstract: 670,588. Shoes for wear with skis. LEHMKUHL, J. July 16, 1948 [July 18, 1947], No. 19178/48. Class 17 (ii). Movement vertically of a shoe heel 2 relatively to a ski may be prevented when desired by engaging means on the ski binding in a channel 3 in the heel formed between plates 4, 5. The means on the ski may comprise a steel leaf blade or the like extending upwards and rearwards on the ski and such means may be engaged in a groove 6 on the underside of the shoe heel when it is desired that the heel shall be free. Specification 670,589, [Group XV], is referred to.
Patent GB-625432-A (GB)
Title: An improved apparatus for raising liquid from wells by means of gas under pressure
IPC: F04F1/06
Filed: 1946-06-27
Abstract: 625,432. Oil-well pumps. GILMOUR, H. June 27, 1946, No. 19232. [Class 102(ii)] A liquid displacement pump comprises an outer shell 6, Figs. 1A and 1B and 6a, Figs. 1B and 1C, a tubular conduit 16 surrounding a valve casing 24 containing pilot inlet and exhaust valves 21, 26 connected by a spindle 23 and controlling intermittent opening of a main inlet valve 13 secured to a piston 18 by a spindle 17. Gas, under pressure, supplied to the induction space A, Fig. 1A, travels by way of a port C in a housing 3 to a space F and then through ports F<SP>1</SP>, a space G and inlet ports H in the valve 13, to an axial port M in the spindle 17 thereby opening the valve 21 against the upward thrust of a helical spring 37 provided on the spindle 23. The valve 26 which is initially opened, is then closed, and the accumulated pressure within the space N forces the piston upwards thereby opening the valve 13 which in turn causes a tongue 12 secured to the valve to force open the pivoted jaws of a catch 11 against the pressure of a spring 8 until the tongue is retained within the recess in the jaws and the piston 18 held at the top of the cylinder 24. The gas is now free to flow down the annular space between the conduit 16 and the casing 24 to an annular space R, through ports S into a recess X and thence by way of a port T to a liquid collecting chamber. The liquid in the chamber is displaced by the gas through an eduction tube 36 to a port W and thence by way of an annular space E, Fig. 1B, through a port D in the housing 3 to an eduction tube B and so to the surface whereupon the pressure in the tube B falls with a corresponding fall in the spaces A, C, F and M. The valve 26 is then opened, due to the closing of valve 21 on its seat 20 by the spring 37 overcoming the gas pressure in the port M, and the space N opened to atmosphere through a passage Q and a port V. The higher pressure now existing in the space G forces the piston 18 and the tongue 12 downwards thereby closing the valve 13 and the cycle is then complete. A valve, secured to the tube 36, which allows gas within the liquid filling chamber to escape to atmosphere by way of the port W is closed against its spring by the gas pressure during the raising operation.
Patent GB-677227-A (GB)
Title: Improvements in or relating to vibration absorbing pads and methods of making the same
IPC: F16F9/30
Filed: 1947-07-18
Abstract: 677,227. Vibration-dampers. CHAMBERLAIN, C. W. July 18, 1947 [May 19, 1943; Aprli 20, 1944], Nos. 19234/47 and 19235/47. Drawings to Specification. Class 108(iii) A vibration - absorber comprises a plurality of superimposed sheets having a film on adjacent surfaces thereof of a thickness only such as is held by the molecular attraction of the surface molecules of the sheets, the films being in the form of a liquid and a gas and each of the films being approximately one quarter of a millionth of an inch thick. In an embodiment the absorber is formed from a strip of metal which is rolled on a mandrel, the mandrel removed and the roll subjected to a pressure of approximately 3500 pounds per square inch. The metal which may be copper is normally 0.003 inches thick and consists of 50 superimposed sheets. The metal is coated with a thin film of oil which is of a thickness only such as is held by the molecular attraction of the surface molecules of the metal. The flattened roll is enclosed in a metal casing which is sealed by welding around a flange thereon while the roll is subjected to the pressure of 3500 pounds per square inch. The invention is applicable to the mounting of cameras in aeroplanes, machinery mountings and to vibration absorbers for recoil springs for guns.
Patent GB-1032280-A (GB)
Title: A control circuit for an electromagnetic clutch
Inventor: POLJAK DAVID GRIGORJEVICH
IPC: F16H63/46
Filed: 1963-05-15
Abstract: 1,032,280. Clutch control. MOSKOVSKY ZAVOD MALOLITRAZHNIKH AVTOMOBILEI. May 15, 1963, No. 19246/63. Heading F2L. A control circuit for an electromagnetic vehicle clutch comprises a switch 4 for connecting the clutch coil 1 with the armature of an engine-driven generator 2 or with a battery 3, a relay p with three windings 15, 27, 28 and arranged to supply the clutch coil through a resistance 25 at low engine speeds, the windings being respectively connected in parallel with the generator armature 14, in parallel with the generator shunt winding 29, and in series with the generator armature 14, The switch contact arms are raised to connect the generator 2 and lowered to connect the battery 3. The windings 27, 28 act in opposition so that at a predetermined engine speed a contact 26 is closed to cut out the starting resistance 25. The compensating winding makes the relay operation independent of the charge state and load on the battery. With contact 26 closed the vehicle is accelerated by releasing pedal 37 to open contacts 22, 23, 26, and the gear lever 21 moved to open further contacts 18, 19, thus interrupting the current in winding 27. Upon releasing the gear lever contacts 18, 19 again close but the circuit supplying clutch coil 1 is not closed due to contacts 22, 23, 26 being open, depression of pedal 37 closing the contacts and restoring the current in winding 27.
Patent GB-624967-A (GB)
Title: Improved enamelling process
IPC: C23D3/00
Filed: 1947-07-18
Abstract: 624,967. Enamelling. GENERAL MOTORS CORPORATION. July 18, 1947, No. 19249. Convention date, Aug. 24, 1946. [Class 56]  Ferrous metals are heated in a non- oxidising atmosphere at a sufficiently high temperature and for a sufficient length of time to remove gases in the metal, cooled in a non-oxidising atmosphere, coated with porcelain enamel and fired. The metal may be heated in an atmosphere of N 2 , H 2 , CO, CO 2 , or a cracked gas containing N 2 , H 2 , CO, and a small amount of CO 2  at about 1600‹F for about one hour. If the temperature is higher a shorter period of time is permissible and vice versa, but a desirable minimum temperature is 1400‹F whatever length of time is used, and the preferred minimum period of heating is 30 minutes, although the absolute minimum is 24 minutes. The first is an alkali borosilicate glass in granular form containing B 2 O 3 , Al 2 O 3 , and SiO 2  and is mixed with water, clay, and opacifiers, ground to pass a 200 mesh sieve, and applied by dipping, spraying, flowing, &c. The coating is dried then heated in an air atmosphere as required, e.g. between 1500 and 1520‹F for two minutes.
Patent GB-369827-A (GB)
Title: Improvements in and relating to pressure gas burners such as are used for soldering purposes
IPC: F23D14/34
Filed: 1931-07-03
Abstract: 369,827. Gas burners. SELASAKT.- GES., 10, Mullerstrasse, Berlin. July 3, 1931, No. 19252. Convention date, Oct. 24, 1930. [Class 75 (i).] A pressure gas burner, such as is used for soldering purposes, comprises a conduit 1 discharging through a nozzle 6 into a tapered body or mixing chamber 7 fitted with a grooved divergent mouthpiece 10. The edges of the grooves 11 in the mouthpiece 10 reduce the speed of the surface particles of the stream of gas and air to below the ignition velocity without substantially affecting the velocity of the main portion of the stream. The admission of air to the conical end of the chamber 7.is regulated by a conical cover 8 which is threaded on the nozzle head 5 and may be locked in position when adjusted by a nut 9.
Patent GB-130992-A (GB)
IPC: B01D5/00
Filed: 1919-08-05
Abstract: 130,992. Chenard, E. A. R. Aug. 5,1918, [Convention date]. Rectifiers.-In fractional distillation, the vapours from a still 1 are passed upwards through a series of elements consisting of concentric tubes 4, 5 through which a reflux obtained by condensation flows downwards. The arrangement is such that an exchange of heat takes place between the vapours surrounding the tubes 5 and the liquid within the tubes 5 while the vapours and liquids are flowing in the same direction. The reflux is obtained by passing the vapours through a series of separators 7 each consisting of cones, Fig. 2, in which the vapours expand, and which are provided with filtering-boxes 10 packed with inert material to separate the particles of liquid formed during the expansion The resulting liquids flow by pipes 11 to the zigzag pipe 6 by which the vapours are led from the elements 4, 5 to the separators 7. Certain impurities may be removed by means of a pipe 12 communicating with one of the pipes 11.
Patent GB-1204275-A (GB)
Title: Nursing bottle with bimetal strip thermometer
Inventor: KITA YASUYOSHI
IPC: A61J9/02
Filed: 1969-04-16
Abstract: 1,204,275. Bottles. Y. KITA. 16 April, 1969 [22 April, 1968], No. 19372/69. Heading BSD. A plastics bottle 1 has a recess 2 sealed by a transparent cover 4 and containing a bi-metal strip thermometer 3 for measuring the temperature of the liquid in the bottle.
Patent GB-1504931-A (GB)
Title: Apparatus for photoelectrophoretic imaging
IPC: G03G17/04
Filed: 1975-05-08
Abstract: 1504931 Feeding webs XEROX CORP 8 May 1975 [4 June 1974] 19373/75 Heading B8R [Also in Division G2] In a photoelectrophoretic apparatus of the type disclosed in Specification 1,504,038, in which a bead of accumulated material which has built up at the entrance to a nip between two surfaces is removed by separating the surfaces and advancing at least one of them to advance the bead beyond the nip, the means for separating the surfaces, of which at least one must be a web, is such that the length of web being fed between two locations remains constant. In a first embodiment, both surfaces are webs, one 14 of which is fed over an imaging roller 32 and the other 10 of which is fed between rollers 12, 34. When a bead is to be removed, a separator roller 30 starts to move upwardly in an arcuate path and when it makes contact with the web 10, a pressure roller 28, which is already deflecting the web, starts to move upwardly, also in an arcuate path. In this way web 10 is separated from web 14 but its length between the rollers 12, 34 is not altered. The separator and pressure rollers are moved to their initial positions simultaneously. Upward movement of roller 30 is associated with termination of ink application by means 33, 37 and of the photoelectrophoretic imaging cycle. Web 14 may be slowed or stopped when roller 30 is raised. A drum, endless belt or plate may replace web 14. Rollers 28, 30 are moved by cam mechanisms. In a second embodiment, Fig. 4, roller 32 is lowered and roller 60 raised to maintain the web 10 length between A and B constant whilst webs 10 and 14 are separated. At the same time, rollers 61, 62 are moved outwards to maintain the web 14 length between C and D constant.