baber/WOPTO huggingface dataset:
Patent GB-831155-A (GB)
Title: Magnetically actuated relay or operating device
IPC: H01H51/28
Filed: 1957-04-11
Abstract: 831,155. Magnetic relays; mercury and other conducting liquid switches. KOHLSTROM, C. April 11, 1957, No. 11898/57. Class 38 (5). [Also in Group XXXV] A magnetically-actuated relay or operating device has a movable member consisting of a liquid alloy of mercury and a ferromagnetic material such as iron. As shown in Fig. 1 a body 1 of the material is moved on energization of the coil 3 to connect terminals 7, 8. In Fig. 2 the flow of the alloy 9 under the influence of the coil 11 is controlled by an adjustable screw 15. A device responsive to current surges is shown in Fig. 3, each surge moving the alloy 19 to the other end of a tube 20 where it remains until the next surge. Permanent magnets may be used instead of the energizing coils.
Patent GB-598050-A (GB)
Title: Improvements in electro-mechanical filters
IPC: H03H9/48
Filed: 1944-06-22
Abstract: 598,050. Electro-mechanical filters. RANTZEN, H. B. June 22, 1944, No. 11915. [Class 40 (iii)] An electro-mechanical band-pass filter comprises two reeds mechanically coupled to one another by a spring and forming the armatures of two telephone-receiver magnets. The input and output terminals of the filter comprise the terminals of the coils of two 4000-ohm telephone receivers T1, T2. For the diaphragms are substituted two reeds R1, R2, Fig. 3 (plan), coupled together by a hair-pin S of spring steel wire, Fig. 4 (end elevation). The bases 13 of the receivers are mounted on low-frequency plate springs 18 to prevent stray coupling. The reeds are tuned by means of sliding weights 16 and the magnetic gaps can be changed by means of shims 15, the filter being adjusted to give a pass-band from 65 to 72 or 73 c./s. Damping is introduced by eddy currents induced by the poles 11 and can be varied for impedancematching by varying the polarizing current. Specification 489,075 is referred to.
Patent GB-1084404-A (GB)
Title: Chambered self-lubricating bearing
Inventor: HALLER JOHN
IPC: F16C33/10
Filed: 1966-03-18
Abstract: 1,084,404. Brazing. FEDERAL MOGUL CORPORATION. March 18, 1966, No. 11973/66. Heading B3R. [Also in Division F2] A chambered self-lubricating bearing 12, Fig. 1, comprises metal components 16, 18, each of which has a bore 20 and an assembly face 28 which contains a recess 30 and a counter recess 32 so that, when the components 16, 18 are secured together a lubricant chamber 34 is formed. The chamber 34 is connected, by means of passages 38 containing a wick 40 to a part spherical bearing surface 22 which is engaged by a complementary bearing surface 24 of a mounting 14. The latter comprises components 42, 44 of metal, or of sintered powdered metal, which are retained by rings 56 and a housing 60, having inwardly-directed radial flanges 58. Seals 54 and an annular lubricant gap 62 are provided. In order to secure the components 16, 18 along their assembly faces 28, an intermediate member 64, Fig. 3, of brazing material is assembled into an annular-space 36 which is formed by the counter-recesses 32. The member 64 first acts as a pilot member to facilitate assembly and is then melted. The chamber 34 is filled with lubricant and wicks 40 are inserted. In another embodiment, a bearing 70, Fig. 5, comprises components 72, 74 which together form an annular chamber 88 and an annularspace 94. An intermediate member 96, which is made of powdered-metal impregnated with brazing-metal, is positioned in the annular space 94 and, on being heated, secures assemblyfaces 82 together by means of the brazing metal which flows from the member 96. A powdered metal residue remains in the chamber and serves as a wick, the latter and the chamber 88 being supplied with lubricant. In modifications, the powdered-metal wick is provided with radially inwardly-directed lugs, or with radially outwardly-directed lugs; and the intermediate member 168, Fig. 15, fills both an annular central portion 149 and annular spaces 136.
Patent GB-850870-A (GB)
Title: Improvements in the production of secondary amines
Inventor: DENT WALTER THEODORE
Filed: 1957-04-12
Abstract: Secondary amines are prepared by reacting at an elevated temperature a primary amine having a substituted unsubstituted cyclic radical with a cyclic organic halogen compound in the presence of potassium or sodium carbonate, bicarbonate or hydroxide as acid-binding agent and a compound of formula XCONHR wherein X is an aromatic residue having a hydroxyl group attached thereto in o-position to the -CONHR group and R is substituted or unsubstituted cyclic radical.  The primary amine is preferably of the formula RNH2 wherein R is the same as R in the amide, to avoid contamination of the product with other amines.  The amide may be formed in situ in the reaction mixture, e.g. by reaction of an amine RNH2 and the ester or acid chloride of an acid XCOOH.  The amide may be recovered from the reaction mixture and re-used.  In Examples: (1) aniline and p-chloronitrobenzene are reacted together in the presence of methyl salicylate and potassium carbonate, the mixture steam distilled and the residue extracted with petroleum ether to give 4-nitrodiphenylamine; (2) as in (1) but using salicyanilide in place of methyl salicylate; (3) aniline, salicylyl chloride and potassium carbonate are refluxed together, p-chloronitrobenzene is added and the mixture refluxed and then treated as in (1).  Further amines prepared in similar manner are N-phenylanthranilic acid, diphenylamine, 2-anilinopyridine and 4-methyl-41-nitro-diphenylamine.
Patent GB-582903-A (GB)
Title: Alkamine esters of 1-cyclohexylpyrrole-3,4-dicarboxylic acids
IPC: C07D207/34
Filed: 1944-06-23
Abstract: Pyrrole derivatives of the general formula <FORM:0582903/IV/1> where R is alkyl and X is dialkylaminoalkyl are prepared by heating the corresponding dialkyl ester with a dialkylamino alcohol in the presence of an alkali metal alcoholate.  In the examples, diethyl - 1 - cyclohexyl - 2.5 dimethylpyrrole 3.4-dicarboxylate is heated with b -diethylaminoethanol or -propanol in which sodium has been dissolded to yield di-(b -diethylamino-ethyl or -propyl)- 1 -cyclohexyl-2.5-dimethylpyrrole-3.4-dicarboxylate.  Potassium may be used instead of sodium and the alcoholate may be preformed. The compounds may be used as local an sthetics in the form of their hydrochlorides and as activators for rubber accelerators in the form of the free base.  Diethyl-1-cyclohexyl-2 : 5 dimethylpyrrole-3 : 4-dicarboxylate is prepared by condensing diethyldiacetosuccinate with cyclohexylamine.
Patent GB-130726-A (GB)
Title: Improvements in or relating to Apparatus for Conditioning or Damping Yarns and Threads.
Inventor: WEBSTER HERBERT EDGAR
IPC: D06B1/00
Filed: 1918-07-25
Abstract: 130,726. Webster, H. E. July 25, 1918. Apparatus fitted to yarn and thread damping devices.-In apparatus for conditioning or damping @ and threads, of the kind provided with means for indicating the increase in weight due to absorption of moisture, the container c for the yarns &c. is placed upon a perforated or apertured false bottom b, which is maintained in normal position by springs e or counterweights. As shown in Fig. 2, the bottom b is pivoted at d, and, as the other end of this bottom falls, due to the increase in weight of the varn, the indicator g is actuated. In the arrangenent shown in Figs. 3 and 4, one end of the perforated bottom b rests upon curved levers h, j, the pivot h<1> carrying a counterweight h<3> and the pivot j<1> actuating the indicator g<1>. An audible indicator may be provided by causing the pointer g<1> to complete an electric circuit and ring a bell.
Patent GB-478168-A (GB)
Title: Improvements in or relating to steam driven locomotives
IPC: G04B17/22
Filed: 1937-04-28
Abstract: 478,168. Steam locomotives. SUPERHEATER CO., Ltd. April 28, 1937, Nos. 12101. and 12102. Convention dates, April 28, 1936 and Aug. 11, 1936. [Class 79 (i)] A locomotive is provided with a plurality of independent driving units each comprising a pair of driving wheels 1, a pair of cylinders 4 with their axes inclined to the horizontal, and a crankshaft 3 arranged at substantially the same level as the driving-wheel axle and coupled thereto by cranks and coupling rods 10, each crankshaft having double crankpins subtending an angle equal to the angle which the cylinders make with the horizontal, and one pin of each double crank being connected by a rod 8 to the engine crosshead while the other pin is connected by rod 10 to the driving wheel. Each crankshaft 3 may be in front of its driving wheel as shown in Fig. 1, or it may be behind the wheel. In the construction shown the cylinders 4 are connected by pipes 7, 11 to main steam and exhaust pipes 5, 9. Each cylinder is bolted at 25 to a cradle 24 forming part of a cross member 16 having four lugs 20 bolted at 22 to the locomotive frame and forming a bracing member for the frame. The crosshead guide 40, Fig. 6, is bolted to a bracket 26 either formed on the cylinder bearer 16 for the next axle, as shown in Fig. 3, or separately secured to the frame. The crankshaft 3 rotates in bearings 34 in a casting 30 bolted to the frame and is provided at each end with two crankpins 38, 36 arranged at an angle, the outer pins 36 being engaged by the connecting rods 8, and the inner pins 38 being connected by rods 10 to the driving-wheel cranks. Each pair of driving wheels may be fixed on their common axle or they may be independently mounted. The cylinders, crankshaft and driving wheels of each unit may be readily removed for repair or renewal.
Patent GB-769132-A (GB)
Title: Improvements in vinyl chloride polymers suitable for use in plastisols
IPC: C08J3/12
Filed: 1955-04-27
Abstract: Mixtures of individual powders of vinyl chloride polymers obtained by separately spray drying portions of a vinyl chloride polymer latex at temperatures differing by at least 10 DEG  F., grinding the spray-dried portions and mixing are used for making plastisols.  The spray drying is preferably effected at a temperature between 200 DEG and 550 DEG  F.  The particle size of the powders may be of the order of 5 to 15 microns and the quantity of each powder in the mixture preferably amounts to at least 20 per cent of the mixture.  The vinyl chloride polymer may be polyvinyl chloride, or a copolymer of vinyl chloride and vinyl acetate. Plasticisers mentioned for use in the plastisol are di-(2-ethyl hexyl) phthalate, trioctyl phosphate, tricresyl phosphate, dihexyl sebacate, and dioctyl adipate. Specifications 627,265, 630,611 and 634,647 are referred to.
Patent GB-419254-A (GB)
Title: Improvements in and relating to filters for vacuum-cleaners and the like
IPC: A47L9/12
Filed: 1934-04-23
Abstract: 419,254. Air filters. AKTIESELSKABET FISKER & NIELSEN, and FISKER, P. A., 30, Peter Bangsvej, Copenhagen. April 23,1934, No. 12120. [Class 8 (ii).] A filter for vacuum cleaners &c. consists of two bags &c. 4, 8 connected, e.g. at the bottom by discs 10 on a stiffening rod 6, the outer bag being capable of reversal into a position, shown in dotted lines, where the previously internal surfaces of the bags are exposed for cleaning by brushing or by use of vacuum.
Patent GB-1389164-A (GB)
Title: 2- 1-aminoethyl phenothiazines and compositions containing them
IPC: C07D279/18
Filed: 1973-03-14
Abstract: 1389164 2-(1-Amino-ethyl)-phenothiazines BOTTU 14 March 1973 [23 March 1972] 12171/72 Heading C2C Novel compounds I  and their acid addition salts, in which R is alkyl or dialkylaminoalkyl and X is hydrogen, halogen or alkoxy in the 7- or 8- position are prepared by reacting a compound II with a mixture of ammonium formate and formamide in the presence of magnesium chloride at a temperature of 150‹ to 190‹ C. and hydrolysing the intermediate formed in the presence of concentrated hydrochloric acid X is hydrogen, 8-chloro or 7-methoxy and R is methyl, ethyl, butyl or dimethylaminopropyl. 8 - Chloro - 2 - (1 - formamido - ethyl) - 10- methyl phenothiazine was isolated as an intermediate in one of the above reactions. Compounds I have anti-inflammatory and analgesic activity and form with a suitable vehicle a pharmaceutical composition which may be administered orally, parenterally or rectally.
Patent GB-741591-A (GB)
Title: Improvements in or relating to the purification of uranium by formation of uranium peroxide
Inventor: MORRIS GEORGE OSWALD
IPC: C01B15/047
Filed: 1947-05-06
Abstract: Pure uranium peroxide is prepared from impure uranium tetrafluoride by dissolving the latter in dilute sulphuric acid in the presence of excess hydrogen peroxide, precipitating ammonium uranate from the uranyl sulphate solution so formed by the addition of excess aqueous ammonia, washing the precipitate and dissolving it in sulphuric acid and adding hydrogen peroxide to precipitate uranium peroxide.  The initial dissolution which may employ 125 per cent sulphuric acid and 400 to 600 per cent hydrogen peroxide of the stoichiometric requirements, is preferably conducted at 10 to 60 DEG C, the hydrogen peroxide addition preferably being in stages.  The solution may then be boiled to decompose excess hydrogen peroxide.  After the addition of ammonia to increase the final pH to 9 at least, a wetting agent such as trimethyl cetyl ammonium bromide or sodium oleyl para anisidine sulphonate may be added to facilitate precipitation of the ammonium uranate.  This precipitate is freed from ammonium fluoride by washing and dissolved in sulphuric acid, to form uranyl sulphate. After adjusting the pH to 3.0 by the addition of aqueous ammonia, hydrogen peroxide is added.  The precipitated uranium peroxde is filtered and may be dried at 140 DEG C.  The initial impure uranium tetrafluoride may be derived from hydrofluorination of uranium dioxide or the precipitation of uranous sulphate solution with aqueous hydrogen fluoride.
Patent GB-396178-A (GB)
Title: Improvements relating to ironing cabinets
IPC: A47B77/10
Filed: 1932-04-28
Abstract: 396,178. Ironing-cabinets. WALKER, J., 10, Adamton Road, Prestwick, Ayrshire. April 28, 1932, Nos. 12220 and 18928. [Class 138 (ii).] A modification of the ironing-cabinet described in Specification 372,948 consists of a box-like frame comprising side rails 1 united by a board 2 and backed by a plywood or other panel 3. A board 5 and a sleeve board 9 are hinged at 4, 7 respectively, and are supported by collapsable ties 6 and struts 10, 11.
Patent GB-1340937-A (GB)
Title: Turbomachinery rotors
IPC: F01D5/06
Filed: 1971-04-29
Abstract: 1340937 Turbomachine rotors GENERAL ELECTRIC CO 29 April 1971 [30 April 1970] 12229/71 Heading F1T An axial flow compressor or turbine rotor comprises a disc 34 having a rim 36 with blade mounting slots 38 extending thereacross, thin platforms 40 being provided between adjacent slots and angled outwardly from the inlet to the discharge side of the rim, circumferential and axial webs 42, 44 extending between the latter and the platforms. In a modification Fig.4 (not shown) circumferential webs 42 are not provided and  each axial web 44 is replaced by two axial webs (48) disposed at the sides of platform 40, adjacent slots 38. In both arrangements rim 36 is lightened by axial cavities 46. Disc 34 is connected to an adjacent rotor stage by a frusto-conical member 30 and bolts.
Patent GB-783460-A (GB)
Title: Improvements in castor-cups for supporting the legs of furniture
IPC: A47B91/12
Filed: 1955-04-28
Abstract: 783,460. Castor cups. GOODFELLOW, A. M. April 30, 1956 [April 28, 1955], No. 12238/55. Class 52(1) A castor cup A consists of a block a circular in plan with a central recess b to receive the castor B and having grub screws c in a tapped bore a<SP>2</SP> or engaging a nut moulded into the block, the screws engaging the flanges of the castor wheel.
Patent GB-118444-A (GB)
Title: An Improved Speed-changing or Reversing Gear.
IPC: F16H61/02
Filed: 1917-08-27
Abstract: 118,444. Pollard, G., and Menco-Elma Syndicate. Aug. 27, 1917. Variable-speed epicyclic gearing.-In gearing of the kind described in Specifications 110,020 and 118,308, the planet pinions are inclined to each other and are geared or otherwise connected together. The driving-shaft A<1> carries a fly-wheel F which may be clutched by electromagnetic clutches D. E to bevel-wheels D', E' which gear with planet-pinions K, J, arranged on inclined spindles B<2>, B<1> which are secured to the driven shaft A. The pinions K, J are geared together by bevelwheels k, j or otherwise connected, and the pinion K or J or both pinions gear with bevel-wheels such as I<1> braked by brakes such as I. In the form shown, two speeds are obtained by driving the wheel D<1> or the wheel E<1> and braking the wheel I<1>. A third solid speed is obtained by closing the two clutches, and a reverse by driving the wheel D<1> and braking the wheel E' by means of a brake G. five speeds and a reverse are obtained when a brake-wheel gearing with the pinion J is added. The pinions J, K may be inclined at any angle to each other and to the shafts, all arrangements providing for considerable freedom of choice in the speeds to be obtained.
Patent GB-1298160-A (GB)
Title: The curing of cationic sensitive monomers
IPC: C08G65/26
Filed: 1970-03-13
Abstract: 1298160 Polymerization catalyst MINNESOTA MINING & MFG CO 13 March 1970 [14 March 1969] 12308/70 Headings C3B C3P and C3R Monomers which polymerize by ring opening of cyclic groups containing oxygen or nitrogen atoms or monomers containing ethylenic unsaturation, in which an O or N atom is attached to one of the C atoms of the C = C double bond, are polymerised using a bis-(perfluoroalkyl sulphoxy) methane (I) as catalyst. I may have the formula (R f SO 2 ) 2 CHR where R f  is perfluoroalkyl, R is H, Br, Cl, alkyl, aryl, alkaryl or -R<SP>1</SP>Y in which R<SP>1</SP> is alkylene and Y is OH, CH : CH 2 , COOH, Br, Cl, OCOCR<SP>11</SP> : CH 2  in which R<SP>11</SP> is H or CH 3 , e.g. (CH 3 SO 2 ) 2 CH 2 . Examples of monomers polymerized are monoepoxides, e.g. 1,2-propylene oxide, epichlorohydrin and styrene oxide; diepoxides, e.g. vinylcyclohexene dioxide, 3,4-epoxycyclohexyl- 3,4-epoxycyclohexane carboxylate and a diglycidyl ether of bisphenol A; aziridinyl compounds, e.g. isophthaloyl-N,N<SP>1</SP>-bis-(propyleneimine); unsaturated monomers, e.g. N-vinylpyrrolidone, N-vinyl-N-methyl methane sulphonamide, hydroxybutyl vinyl ether and 2- ethylhexyl vinyl ether; and trioxane.
Patent GB-743081-A (GB)
Title: Improvements relating to radar range systems
Inventor: HUNTER DESMOND
IPC: G01S7/00
Filed: 1953-05-04
Abstract: 743,081. Electric indicating systems. BRITISH THOMSON-HOUSTON CO., Ltd. May 4, 1954 [May 4, 1953], No. , 12322/53. Class 40(1) [Also in Group XL(c)] Relates to radar range indicating systems using a potentiometer arm 2 or other control adjusted manually or automatically through a radar auto-follow system to move a marker on a C.R.T. into coincidence with the displayed echo, and wherein the range indicating position of the arm 2 is transmitted by a selsyn system to a predictor or other remote point. According to the invention rapid adjustment of the potentiometer, required e.g. when slewing the ranging system, is effected in steps, independently of any movement of the arm 2, and switching means are operated synchronously with the potentiometer adjustments for changing the connections in the selsyn system to compensate for the adjustments. As shown, the normally stationary part 3 of the potentiometer is angularly adjustably in steps of 60 degrees and through a 1: 2 gearing 9 steps a switch 8, Fig. 2 (not shown), through 30-degree steps, the switch varying both the single and polyphase connections between the selsyn transmitter 7 and receiver (not shown) to compensate for the stepping adjustment. The potentiometer adjustment may alternatively be effected electrically by ganging to the switch 8 a switch having six equiangularly spaced arms, co-operating with six equi-spaced fixed contacts connected to six equi-spaced contacts around the potentiometer resistor. Coarse and fine selsyn links may be used. a switch similar to switch 8 being connected in each link, Fig. 3 (not shown).
Patent GB-201629-A (GB)
Title: Improvements in and relating to electric incandescent lamps
IPC: H01K1/56
Filed: 1922-05-02
Abstract: 201,629. British Thomson-Houston Co., Ltd., (General Electric Co.). May 2, 1922. Residual gases.-Discoloration of the glass of tungsten filament lamps due to deleterious gases, particularly water vapour, is prevented by introducing into the bulb a carbon-containing material available for chemical reaction with the deleterious gases at the temperature at which the lamp operates. The carbon-containing material may be a hydrocarbon gas such as acetylene, methane, naphthalene vapour or anthracene vapour. Preferably a material which does not contain both oxygen and hydrogen should be employed. The amount of carbon-containing material introduced into the bulb should be limited to about .1 per cent to .2 per cent of the weight of the filament, and the amount of carbon as an elementarv constituent should be not more than .05 per cent of the weight of the filament. The lamps may be sealed off as vacuum lamps or may be filled with argon or nitrogen. Carbon may be introduced into or on to the filament by incandescing it in a carbonaceous vapour, after which the filament is mounted in the bulb.
Patent GB-912842-A (GB)
Title: Improvements in or relating to plotting apparatus
Inventor: SCOTT ATHELSTANE BODLEY
IPC: B43L13/00
Filed: 1960-04-07
Abstract: 912,842. Recording-apparatus. BRYANS AEROQUIPMENT Ltd. April 7, 1961 [April 7, 1960], No. 12366/60. Class 106 (4). Recording - apparatus comprises a transparent plate 48 carrying a translucent record sheet 52 and a pen 58 and its carrier 24 disposed on the side of the sheet 52 remote from an observer so that markings made by the pen are viewed through the sheet 52 which is illuminated by lamps 54. If an evanescent trace is required the record sheet may be impregnated with a bleaching agent of a suitable concentration to bleach a particular ink in a chosen interval of time. Ultra-violet light may be used as an ink bleacher or bleach accelerator. The carrier 24 is moved by wires 44 and pulleys 68 controlled by motors to plot a variable in Cartesian or polar co-ordinates and the pen may be replaced by e type-bearing element and inked ribbon. The plate 48 is hinged to facilitate changing of the sheet 52 and the pen 58 is mounted on the carrier 24 by a pivot 60 to enable it to be lifted by a bar 64 against the action of spring 62. The casing 12 of the apparatus is mounted by trunnions 14 in uprights of the base 10 and the inclination of the casing 12 can be adjusted by a sector-plate 16 having locating holes engageable by a spring- loaded plunger 18.
Patent GB-457588-A (GB)
Title: Improvements in or relating to methods of and apparatus for the dehydration of magnesium chloride
IPC: C01F5/34
Filed: 1936-05-01
Abstract: In dehydrating magnesium chloride by introducing it into a bath of molten sodium, potassium, magnesium, or calcium chlorides or mixtures thereof maintained at a temperature of 600--1000 DEG  C., the container for the melt is filled with pieces of coke, electrode carbon, or charcoal and direct current is passed through the pieces both to maintain the temperature of the bath and to generate a small amount of chlorine which inhibits formation of magnesium oxide.  The container may be lined with rammed carbon composition or with graphite plates connected to the positive pole for the current and a graphite or carbon rod may constitute the negative electrode. Specification 345,518 is referred to.