baber/WOPTO huggingface dataset:
Patent GB-303092-A (GB)
Title: Process for protecting materials such as wool, fur, and the like from the ravages ofmoth
IPC: A01N57/18
Filed: 1927-09-28
Abstract: 303,092. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Sept. 28, 1927. Organic arsenic, antimony, tin, bismuth, and phosphorus compounds.-Materials such as wool, fur &c. are moth-proofed by treatment with an organic compound in which phosphorus, arsenic, antimony, bismuth or tin is directly linked to the carbon atom of one or more organic residues, which may be either aliphatic, aromatic or aralkyl residues, substituted or unsubstituted, and similar or dissimilar. In particular, compounds corresponding to the following formulae are used :- Where Me<111>=phosphorus, arsenic, antimony or bismuth; Me<1v>=tin; Me<v> = phosphorus, arsenic., antimony or bismuth; and R<1>, R<11>, R<111> and R<1111> represent the same or different aliphatic or aromatic residues, for example, methyl, ethyl, benzyl, phenyl, napthyl, dimethylaminophenyl ; X, Y represent halogens or acid residues or hydroxyls, or XY taken together represent oxygen. In the case of Me<111> and Me<1v>, R", and R<111> may also represent the same or different organic or inorganic radicles, e.g., chlorine, acetyl, or a hydroxy group, or two of the bonds may be saturated by oxygen or sulphur. Examples of such compounds are : trip-tolylphosphine, triphenylphosphine oxide, triphenylarsine, tribenzylarsine, tridimethylaminophenylarsine, triphenylarsine, dihydroxide, triphenylstibine tri-p-tolylstibine, tri-o-tolylstibine, diphenylethylstibine, tribromophenylstibine, trimethylstibine dibromide, trimethylstibine dichloride, triethylstibine dichloride, triphenylstibine oxide, diphenylstibine oxide, tri-anapthylstibine, trimethylstibine sulphate, bismuth triphenyl, bismuth phenyl dibromide, bismuth tri-p-tolyl, tin tetraphenyl, tin tetrabenzyl. Substances containing tri-valent metals can be converted, after the impregnation of the goods, into compounds containing pentavalent metals, either by oxidation by exposure to air, or by treatment with hydrogen peroxide or other reagent, for example chloride. The organometallic compounds of phosphorus arsenic, antimony, bismuth and tin are obtained by decomposing the halogen compounds of the said elements with alkyl, aralkyl and aryl halogen compounds in the presence of a calculated quantity of alkali metal. For example, sodium is melted under toluene, stirred, and allowed to cool under reflux to about 40‹ to 50‹ C. A solution of antimony chloride in chlorobenzene and toluene is slowly added, the temperature being kept below 50‹ C. The whole is then heated to 70‹ to 90‹ C. until the sodium is used up, and then cooled while being stirred. The solution is filtered to remove the sodium chloride, and concentrated to precipitate triphenylstibine. Instead of antimony chloride, phenylantimony dichloride or diphenylantimony chloride may be used.
Patent GB-1286661-A (GB)
Title: Guanamine/formaldehyde resins
Inventor: ASHLEY JOHN ARTHUR
IPC: C08K3/32
Filed: 1969-05-20
Abstract: 1286661 Amino-propionoquanamine/formaldehyde resins BRITISH OXYGEN CO Ltd 18 May 1970 [20 May 1969] 25751/69 Heading C3R [Also in Divisions C2 and D1] A guanamine-formaldehyde resin is prepared from formaldehyde and one or both of #-aminopropionoguanamine and #,#<SP>1</SP>-iminodipropionoquanamine. Preferably these are used 3-9 moles and 8-12 moles of CH 2 O for each mole of the amino and the imino compound respectively, the reaction taking place at 75-100‹ C., and pH 3-9. A phosphorus or boron compound, e.g. H 3 BO 3 , H 3 PO 4 , a borate or a phosphate, may be incorporated as a fire-retardant. In Examples condensates are prepared from #,#<SP>1</SP>- iminodipropionoguanamine / formaldehyde / phosphoric (1 : 12 : 0À136 or 0À47 molar ratio), or # - aminopropionoguanamine/formaldehyde/ dihydrogen ammonium phosphate (1 : 6 : 0À35), or # - aminopropionoguanamine/formaldehyde/ phosphoric acid (1 : 3 or 6 or 8 : 0À31 or 0À285 or 0À51 or 0À70). The resins are used to impregnate paper and cotton twill, and may be cured by heating at 100-170‹ C.
Patent GB-297973-A (GB)
Title: Improvements in or connected with miners' safety and other electric lamps
IPC: F21V25/02
Filed: 1927-09-29
Abstract: 297,973. Oldham & Son, Ltd., and Darby, G. H. Sept. 29, 1927. Battery lamps.-A miners' safety or like lamp comprises two or more battery cells 12 carried in a casing 7 fitted with a plate 9 to hold the cells in place, a number of contacts 16 corresponding to the terminals of all the cells being arranged on the rotatable switch plate 22 secured in the lamp top 20. Pins 13 engageable in perforated lugs 8 locate the plate 9 so as to position the cells with regard to the switch contacts, which in turn are positioned by a peg 49 fixed in the lamp top. The switch contacts 16 are arranged to connect the cells together in series and are connected to a contral contact plunger 30 and a conoentric contact 29 which is connected through a spring 36 with the bulb-holder socket 37. This socket is held down against the action of the spring to make connection between the centre contact of the bulb 44 and the plunger 30 by stirrups 50, which may be removed to break the circuit if the outer glass 43 should be broken. A fuse may be mounted on the switch plate.
Patent GB-695297-A (GB)
Title: Improvements in microscope objectives
Inventor: TAYLOR EDWARD WILFRED
IPC: G02B21/02
Filed: 1950-10-23
Abstract: 695,297. Microscope objectives. COOKE, TROUGHTON & SIMMS, Ltd. Oct. 5, 1951 [Oct. 23, 1950], No. 25782/50. Class 97 (i). A microscope objective comprising a concave and a convex mirror facing each other is formed of two transparent elements, the outer faces of which are formed respectively as the two mirrors and the inner faces are plane and are placed in contact when the objective is assembled. This arrangement facilitates adjustment of thickness of the objective and centring of the mirrors. As shown, the element 10, formed for example of glass, fused silica, synthetic crystal or other transparent material has a surface 3 formed as a concave mirror 1 having a central aperture 5, and has a plane surface contacting a similar surface on the element 11 to form an interface 9, the latter element having a convex mirror surface 2. Light from the object passes through an annular portion 6 of the element 11, is reflected by mirrors 1 and 2 and passes through the transparent portion 5 to form the image. Lenses may be placed beyond the portion 5 or before the objective to assist corrections. The elements are mounted in the holder shown and the interface cemented, the member 11 being adjusted for centring relative to the member 10 by grub-screws 19 before the cement has set.
Patent GB-1223889-A (GB)
Title: Process for the preparation of aziridine derivatives
IPC: C08K5/3412
Filed: 1968-05-30
Abstract: 1,223,889. Aziridine derivatives. SHIONOGI & CO. Ltd. 30 May, 1968 [3 June, 1967], No. 25893/68. Heading C2C. The invention comprises compounds of the Formula (I) wherein X, Y and Z are the same or different and each represent a C 1-2  alkylene group or groups -CH=CH-, and the ring formed by X, Z and the three carbon atoms and the group Y may be substituted by a halogen atom, a nitro, amino, amido, alkyl, alkenyl, alkoxy, hydroxy, acyloxy, carboxyl or a mercapto group, and the ring defined by X, Z and the three carbon atoms may be condensed or bridged with a carbocyclic ring system but not so as to disturb the reaction of the molecule and the acid addition salts and quaternary ammonium salts thereof. They are prepared by reacting an unsaturated primary amine of the formula wherein X, Y and Z are as defined above with a halonium reagent, e.g. N-bromosuccinimide, sodium or t-butylhypochlorite, lead tetraacetate or mercuric oxide. The preparation of 5 - methyl - 1 - azatricyclo - (3.2.1.0<SP>2À7</SP>) octane, its organic acid addition salts and methiodide, of 1-azatricyclo-(3.2.1.0.<SP>2</SP>.<SP>7</SP>) octane, its organic acid addition salts, of 8a-methano-trans-perhydroaziridino - (1.2<SP>-b</SP>) isoquinoline, its picrate and flavianate and of 3-(exo)-ethyl-1-azatricyclo-(3.2.1.0<SP>2À7</SP>) octane and its acid addition salts, is exemplified. A list of starting materials is also given exemplifying each one of the substituents listed above.
Patent GB-628219-A (GB)
Title: Improvements in or relating to apparatus for taking photographs
IPC: G03B17/53
Filed: 1947-09-23
Abstract: 628,219. Photographic studio arrangements. MITCHELL, J., and MIRRAPHOTO DEVELOPMENTS, Ltd. Sept. 23, 1947, No. 25799. [Class 98 (ii)] A non-planar parallel-faced transparent or semi-transparent mirror is placed between the camera and the sitter, whereby the latter sees a distorted reflection of himself in the mirror but the camera takes an undistorted picture through the mirror. To obviate any image defects caused by the mirror the latter may be plane over the portion covered by the acceptance angle of the camera or a plate of suitably graded opacity may be placed between mirror and camera ; the latter may be operated by the sitter. Specification 532,455 is referred to.
Patent GB-688324-A (GB)
Title: Improvements in or relating to mechanically regulatable rotating field machines
IPC: H02K17/30
Filed: 1950-10-23
Abstract: 688,324. Induction machines. SIEMENSSCHUCKERTWERKE AKT.-GES. Oct. 23, 1950 [Dec. 1, 1948], No. 25802/50. Class 35. In a polyphase induction motor or generator having a series of poles carrying separate windings which may be moved circumferentially so as to be spaced uniformly round the rotor circumference to produce maximum speed, or crowded together to embrace only part of it and give lower speeds, each phase is divided into component poles in order to reduce harmonics. These poles may be either intermixed between the phases or may carry pairs of windings connected to different phases to improve the phase spread. In addition to the adjustment of the pole-spacing, the speed range may be increased by the use of pole-changing. When compressed, the poles may lie in a single group or in two diametrically-arranged groups. In one form, Figs. 1 and 2, the machine comprises a pair of squirrel-cage disc rotors 1, 2 joined by a series of poles 3, 4 which are shown closed up but may be spread out round the periphery of the discs to increase the speed. The phase-spread is increased by placing separate coils 41, 42 energized by different phases on some of the poles. In a modification, Fig. 15, a single disc 7 is used and the polemagnets 6 embrace its periphery, the energizing coils being placed in any of the positions shown in broken lines. In a further modification, horse-shoe shaped magnets may be disposed on both sides of a disc which has two radiallyseparated squirrel cage windings. The magnets may be rectangular or sector-shaped as shown in Fig. 20 in which bundles of laminµ 12 are separated by spacers 14. Fig. 21 shows a cylindrical rotor 15 acted on by magnets 16 of which the laminµ comprising the pole are at right-angles to those forming the bridge portion to enable wider poles to be used, the windings on the bridges being axially staggered so that they may be placed close together. In modifications, several discs may be used with compound horse-shoe shaped magnets embracing their radial surfaces, Figs. 27, 28 (not shown). Flux distortion by armature reaction may be reduced by making the rotor winding of a series of separate short-circuited rings similar to a Gramme ring armature, and, if desired, the rotor iron circuit may be split into separate poles carrying short-circuited windings. Where it is desired to have a light rotor with little iron, it may be constructed as a thin cylinder passing between the radial poles of the magnets, Fig. 33 (not shown). In Fig. 25 a " lazy-tongs " mechanism is shown for moving the poles 20 round the rotor. The levers are operated by a, manually operated spindle carrying nuts 26 having opposite threads.
Patent GB-1293087-A (GB)
Title: Improvements in and relating to warp knitting machines, particularly sewing-knitting machines
Inventor: HEILMANN FERY
IPC: D04B23/10
Filed: 1970-05-28
Abstract: 1293087 Knitting-machines WIRKMASCHINENBAU KARL-MARX-STADT VEB 28 May 1970 25809/70 Heading D1C A web-holder for a warp, sewing-knitting machine having horizontal needles comprises teeth 8, which may be formed by a slotted bar, whose front edges 11 extend obliquely upwards to guide the sinker loops closely onto the ground fabric through which the needles knit. The bar 7 of the holder may be mounted on a leaf-spring 9. The web is also held by a supporting bar 6. Further projections 13 from the bar 7 guide loose warps 12.
Patent GB-675998-A (GB)
Title: Improvements in or relating to door structures
IPC: E06B3/72
Filed: 1948-10-04
Abstract: 675,998. Doors, windows. PERSSON, E. S. Oct. 4. 1948 [Oct. 20, 1947], No. 25815/48. Class 20(iii) A door to be mounted on hinges with vertical axes has a frame of metal sections comprising a part of inverted substantially U-shape formed of one or two members with at least one rounded corner and which is closed at the bottom by a member which is wider than the member or members forming the U-shaped part. In the form shown in Figs. 1 and 2 the frame of the door consists of a U-shaped part 1 closed by a wider part 4 which is riveted or welded or detachably secured to the part 1. The profiles have internal grooves to hold a glass pane or the frame is provided with a glass retaining bead 5. In Fig. 3 double swing doors are shown, the U-part being formed of an L-shaped member 6 and a straight member 8, on which may be mounted a handle-operated locking bar. The Specification as open to inspection under Sect. 91, also relates to windows made in the above described way and describes various profile sections from which the frame members may be made so as to interlock to form the door or window frame. This subject-matter does not appear in the Specification as accepted.
Patent GB-729407-A (GB)
Title: Improvements relating to the construction of motor vehicles
IPC: B62D47/00
Filed: 1953-09-18
Abstract: 729,407. Vehicle bodies. DAIMLER-BENZ AKT.-GES. Sept. 18, 1953 [Sept. 20, 1952], No. 25827/53. Class 108 (1). A vehicle body has a roof 8 supported by windscreen and rear window frames 5 as its only means of support from the body ends 1. The roof may be secured between the frames instead of over them and the side doors may extend up over the roof rounding when the roof member does not extend transversely the full width of the vehicle. The frames may also be secured directly to upwardly bent ends of the floor plate.
Patent GB-712841-A (GB)
Title: Filtering cartridge
IPC: B01D29/41
Filed: 1951-11-05
Abstract: 712,841. Filters. MULLER, J. Nov. 5, 1951 [May 8, 1951], No. 25866/51. Addition to 687,705. Class 46 A cartridge filter according to the parent Specification is modified by directing the flanges of the V- or U-shaped-section resilient outer and inner spacer rings 9 towards the outside. One inner resilient ring and one outer resilient ring only may be employed having great elasticity and the section of which is formed for example as a bellows as shown in Fig. 2, all the other spacer rings being rigid. In another modification, the spacer rings may take the form of toroidal coil springs of circular toric section as shown in Fig. 4 or of elongated toric section as shown in Fig. 5, a rigid open or closed annular core 34 being incorporated therein, such springs providing a coarser filtering action at the outer periphery and a finer fiitering action at the inner periphery the final filtering being effected by the filter discs 3, 4. The outer and inner spacing rings 9, 25, Fig. 1, with the filter discs 3, 4 therebetween are compressed between two centrally apertured end plates 7, 8 which are thus forced apart against a resilient split keeper-ring 32 located in a circumferential indent 27 in the tube 5 and against a flared rim 26 on the tube 5. Sealing members 29, 31 are provided between the endplates and the tube 5.
Patent GB-1116444-A (GB)
Title: Improvements in or relating to snap-on cap and washer assemblies for screw-fasteners
Inventor: PAYNE HAROLD JAMES WILLIAM
IPC: F16B43/00
Filed: 1965-06-21
Abstract: 1,116,444. Covers for screw heads. H. H. ROBERTSON CO. 24 May, 1966 [21 June, 1965], No. 26058/65. Heading F2H. A cap and washer assembly for a screw, comprises a cap C having a flange 20 and a frusto-conical face 31, and a washer B with a co-operating recess and face 21, the cap being a permanent snap-fit on the washer. A bearing ring portion is formed on the upper face of the washer, and the lower face has a recess to accommodate a further washer. The assembly may be made from polypropylene.
Patent GB-953908-A (GB)
Title: Improvements in and relating to two-component diazotype paper
IPC: G03C1/60
Filed: 1961-07-18
Abstract: 953,908. Two-component diazotype paper. CHEMISCHE FABRICK L.VAN DER GRINTEN N.V. July 18, 1961 [Aug. 3, 1960], No. 26062/61. Heading G2C. A two-component diarotype paper carries a layer comprising (1) a light-sensitive diaronium compound and (2) an aro coupling component which is not a naphthimidazole derivative and which couples more actively than 7<SP>1</SP>-hydroxy-1<SP>1</SP>, 2<SP>1</SP>,4, 5-naphthimidarole, this coupler being present in a sufficient amount to couple with all the diaronium compound present to give an azo dye which contains at least one group enhancing its solubility in water, and (3) 2-hydroxymethyl-1<SP>1</SP>, 2<SP>1</SP>, 4, 5-naphthimidazole, 2-hydroxyethyl-1<SP>1</SP>, 2<SP>1</SP>, 4, 5-naphthimidazole or a 1<SP>1</SP>, 2<SP>1</SP>, 4, 5 naphthimidazole having a hydrogen atom, a methyl, hydroxymethyl or hydroxyethyl group in the 2 position and a hydroxy group in the 5<SP>1</SP>, 6<SP>1</SP> or 7<SP>1</SP> position as an agent to improve the water-fastness of the dye. In the examples, 7<SP>1</SP>- hydroxy; 2<SP>1</SP>-hydroxymethyl; 6<SP>1</SP> hydroxy or 2-methyl 7<SP>1</SP>-hydroxy-1<SP>1</SP>, 2<SP>1</SP>, 4, 5 naphthimidazole as the hydrochloride salts with the two other components are coated on a silica treated paper or the paper may be pre-coated with the naphthimidazole compound before the other components are applied. Specifications 316,563, 318,108, 523,922, 596,048, 640,491 and 660,088 are referred to.
Patent GB-1500642-A (GB)
Title: Coaxial pipe system
IPC: F16L59/06
Filed: 1976-06-23
Abstract: 1500642 Insulating spaces for co-axial pipes KABEL-UND METALLWERKE GUTEHOFFUNGSHUTTE AG 23 June 1976 [1 July 1975] 26133/76 Heading F2P A co-axial pipe system has one or more helical spacers 3 the (or each) spacer consisting of a plurality of strips 4, 5 arranged one over another and composed of thermally insulating material, the adjacent surface of the strips having differentiated cross-sectional configurations so that there is restricted contact 6 between them. As shown the strips have alternate convex and concave surfaces so as to restrict sideways slipping between them. The crosssections of the strips may be varied along their length in a repeated formation and the strips may be of different materials. Polytetrafluoroethylene is mentioned as an example.
Patent GB-633346-A (GB)
Title: Improved method of manufacturing blocking-layer cells of the selenium type
Inventor: AMSTEL JOHANNES J A P VAN
IPC: H01L21/145
Filed: 1946-08-30
Abstract: 633,346. Asymmetrically conducting resistances. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 30, 1946, No. 26160. Convention date, Feb. 22, 1943. Drawings to Specification. [Class 37] In a blocking layer cell of the selenium type having .a first electrode comprising a carrier plate on which a semi-conductive layer and a second electrode are mounted, the second electrode is coated with a layer of lacquer and the cell is then subjected to heating between 100 and 200 C. In the preferred method a galvanized aluminium carrier sheet coated with a carbon film has a layer of selenium applied to it, and small discs punched from the sheet are provided with small gold electrodes by sputtering. The discs are then sprayed with a solution of polystyrene, dried and heated in air to 170 C. for about half-an-hour. Specification 632,166 is referred to.
Patent GB-1042485-A (GB)
Title: L-aspartyl-l-phenylalanine amide
Inventor: MORLEY JOHN SELWYN
IPC: C07K5/072
Filed: 1964-06-25
Abstract: The invention comprises L-aspartyl-L-phenyl-alanine amide of the formula <FORM:1042485/C2/1> and the preparation thereof from an N-benzyloxycarbonyl-L-aspartyl-L-phenylalanine amide of the formula <FORM:1042485/C2/2> by hydrogenolysis when R represents an a -arylalkyl radical and either by acid hydrolysis or by a combination of hydrogenolysis and acid hydrolysis when R represents a tertiary alkyl radical.
Patent GB-734696-A (GB)
Title: Improvements in and relating to commutators
Inventor: LANE ARTHUR CLIVE
IPC: H02K13/00
Filed: 1952-10-21
Abstract: 734,696. Cooling commutators for dynamoelectric machines. BRITISH THOMSONHOUSTON CO., Ltd. Oct. 19, 1953 [Oct. 21, 1952], No. 26405/52. Class 35. Part of the insulation m separating the segments a of a V-ring type commutator is cut away to provide a radial path h for cooling air between the segments. Further air passages p and q may be cut in the hub or end-plates to allow an entry flow path for the air. The sides of the segments may be cut away at the air channel to increase the flow and spacing buttons g, e.g. of glass, may be inserted between the segments. Clamps r at either end may be used to prevent twisting of the segments.
Patent GB-518948-A (GB)
Title: A method of and apparatus for producing hollow bodies from dissloved plastic substances by immersion
IPC: B29C41/14
Filed: 1938-09-10
Abstract: 518,948. Moulding hollow bodies by dipping. BRATRING, K., and INTERNATIONAL CONTAINERS, Ltd. Sept. 10, 1938, No. 26493. [Class 87 (ii)] In moulding hollow bodies by immersion of a battery of rows of cores 5 in a bath 22 of plastic material, such as cellulose derivatives. gelatine, casein or synthetic resin, 'in solution, the cores are disposed in a tilted position, they are introduced intc the material by relative displacement in a vertical plane, turned into a vertical position after their ends have entered the material and maintained vertical until after 'withdrawal has commenced. The cores are subsequently tilted for complete withdrawal. The cores 5 are carried in frames 6 mounted in slideways 7 on a support 8 rotatable within a casing 1. The bath 22 is mounted on a wheeled carriage in a chamber 25 closed by a two-part cover 26, 27 which is opened by levers 38 when the bath is raised by an hydraulic lift 28 so as to immerse the cores 5. Heaters 40 and coolers 41 are provided within the casing 1 to circulate the air and recover solvent. The support 8 is rotated from a worm drive through a dog clutch which is operated from a lever 13. After the support 8 has been rotated so that the cores 5 are vertically disposed opposite the bath 22, the clutch is disconnected, and the moulds are tilted by rotating the support by a hand-lever working over a graduated scale. The bath is then raised and lowered. The lever 13 is adapted to engage a valve 30 for the hydraulic transmission such that the bath can only be moved when the dog clutch for rotating the support is inoperative. An auxiliary valve may be provided for accurate adjustment of the bath. In a modification, Fig. 5, the cores are mounted on transverse strips 47 rotatably mounted in a frame 48 which can be attached to the support 8 or form part of a belt moving past the immersion bath. The strips 47 are connected by a rod 49 and rotated to tilt the cores by a lever the pivot of which is releasably engaged by a coupling 54 or other operating lever on a handwheel 52. The handwheel is provided with a pointer moving over a. scale and is set by a lever pressed against it by a spring. The operating-member may be a hooked rod carried by the handwheel and adapted to engage a slot at the end of the rod 49. The cores may alternatively be tilted by providing cables or chain drives or by a train of gearing which may be operated by a driving- gear or by a rack.