baber/WOPTO huggingface dataset:
Patent GB-764051-A (GB)
Title: Brown tetrakisazo dyestuff and its iron complex compounds
IPC: C09B45/32
Filed: 1955-01-26
Abstract: The invention comprises a dyestuff of formula <FORM:0764051/IV(b)/1> and the iron complex thereof.  It is made by coupling diazotized 1-amino-8-naphthol-3, 6-disulphonic acid with resorcinol in an alkaline medium, coupling the monoazo dyestuff thus obtained with diazotised 4, 6-dinitro-2-amino-1-phenol in a weakly alkaline medium and coupling the disazo dyestuff thus produced with two molecular proportions of diazotized p-nitroniline in a weakly acid medium. Alternatively p-nitroniline is coupled with the aminonaphtholdisulphonic acid in an alkaline or acetic acid medium, the aminoazo-dyestuff thus produced diazotized and coupled with resorcinol in an alkaline medium and the disazo-dyestuff thus obtained coupled with diazotized 4, 6-dinitro-2-amino-1-phenol in a weakly alkaline medium to give a trisazo dyestuff which is coupled with p-nitraniline in a weakly acid medium.  Metal complexes other than the iron complex may be obtained.  The dyestuff dyes chrome tanned leather and leather tanned with vegetable and synthetic tanning agents in brown shades.  Examples are provided illustrating the preparation of the dyestuff, by both of the methods outlined above, and of its iron complex.  Specification 261,140 [Class 2(iii)] is referred to.
Patent GB-603436-A (GB)
Title: Projection screen
IPC: G03B21/60
Filed: 1945-01-31
Abstract: 603,436. Projection screens. HEHN, O. Jan. 31, 1945, No. 2441. [Class 97 (i)] In a concave projection screen the contours of the margins of the screen are symmetrical curves, the depth of the culmination points of the top and bottom lying between 6 and 16 per cent of the length of the screen and of the sides between 4.5 and 12 per cent of the height of the screen. One form is shown in side elevation in Fig. 3 and in detail section in Fig. 6. A lattice framework supports pairs of curved members 38, 40 at the sides of the screen with similar members at top and bottom. Each of these members carries rows of hooks 36 to which the margins of the sheets 24, 26 are laced. The exact contour of the margin of the front sheet is determined by a metal strip 49 supported on brackets 50.
Patent GB-855554-A (GB)
Title: Improvements in or relating to a method and apparatus for the production of a web offlat articles such as envelopes, forms, cards and the like
IPC: B31B160/10
Filed: 1958-01-24
Abstract: 855,554. Manufacture of manifolding webs. WINKLER, R., and DUNNEBIER, K. Jan. 24, 1958 [Feb. 8, 1957], No. 2444/58. Class 16. [Also in Groups XVI and XVII] A method of forming a web from flat articles, such as forms or cards, comprises continuously conveying the articles in succession through a web forming apparatus and while being so conveyed employing means for applying adhesive or adhesive material to adjacent edges or surfaces of the articles so as to form a web of articles separably connected together by'the adhesive or adhesive material. Envelopes la, 1b, 1c, 1d, 1e and 1#, Fig. 1, are glued at 3a to form a continuous strip, the disposition of alternate envelopes being reversed so that, e.g. a flap 2a adheres to the body of the next envelope 1b. Similarly, wrappers 4, Fig. 4 (not shown), cards, forms or loose leaves 5, Fig. 5 (not shown), may be adhered together. The successive envelopes, wrappers cards &c. may underlie or overlie one another. In one embodiment, delivery rollers 10, 11, 12, Fig. 24, deliver envelopes from an envelope making machine of known type to discs 16 rotatable on a shaft 17. The 16 discs have grippers or suction apertures to grip each envelope to feed the envelopes alternately to further discs 21 and 22. The envelopes are held to the discs 21 by suction and then transferred to similar discs 23 coaxial with the discs 22, but rotating in the opposite direction, i.e., counter clockwise. The discs 23 advance envelopes successively with their closing flaps outermost to an abutment 27, while the discs 22 advance envelopes successively with their flaps innermost to an abutment 28. The discs 22 are driven from gearing on the shaft 17, while the discs 23 are freely rotated on a shaft 24 supporting the discs 22 and 23 and driven by gearing including a pinion 25 on a shaft 26 supporting the disc 21. Envelopes are advanced, with their closing flaps 2, Fig. 25, alternatively at the top and bottom, by screwed spindles 30. The position of the spindles may be adjusted to accommodate various size envelopes. Two gumming devices 31, Fig. 24, supplied with gum by rollers 35, 35a contacting rollers dipping in gum reservoirs, apply gum to the envelope edges. Envelopes may be removed after drying from a conveyer 36 in a continuous zig-zag shaped formation. In a modification, Fig. 27 (not shown), the envelopes are delivered by a suction carrier and then stacked in zig-zag manner by a cam-actuated stacker 53. The envelopes may be connected together by adhesive supplied by a gumming roller 42 or by adhesive tape feed by a device 50.
Patent GB-243568-A (GB)
Title: Improvements in domestic washing pans or boilers
IPC: D06F1/00
Filed: 1925-01-28
Abstract: 243,568. Thompson, A. Jan. 28, 1925. Washing-boilers. - In gas-heated domestic washing pans or boilers the. straight and curved edges a, b of the hinged lid are seamed over to the underside and the joint d between the edge of the seam and the main body of the plate, soldered. Wire a<1> is inserted to stiffen the edge and the lid is dished so as to leave a rounded corner at g to facilitate cleaning.
Patent GB-776478-A (GB)
Title: Improvements relating to the cooling of oil immersed electrical apparatus
IPC: H01F27/12
Filed: 1955-01-27
Abstract: 776,478. Cooling oil-immersed electrical apparatus. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd., THOMPSON, L. E., ASHBY, D., AND STEVENS, S. A. Jan. 19, 1956 [Jan. 27, 1955], No. 2469/55. Class 64(3) A tank containing oil in which electrical apparatus is immersed is provided with means to cool the oil comprising a metal block 14 secured, as by studs 17 and nuts 18, to the outer surface of an unbroken section of the tank wall and having pipes or passages extending therethrough for a coolant such as water. The block is provided with one surface of large area in relation to the volume of the block, shaped to establish thermal contact over substantially the whole of this area with the wall of the tank. In the form shown, the hottest oil is drawn by a pump 24, or may circulate by convection, through a compartment 25 within the tank and over fins 23 which project into the compartment 25 from the tank wall, and which are positioned immediately behind the block 14 as shown. After passing over the fins 23 the cooled oil returns to the main body of oil through a duct 27. A number of the blocks 14 may be applied to the exterior surface of the tank to cool the oil at selected zones.
Patent GB-109735-A (GB)
Title: Pictures to give Motion Effect when Viewed from a Moving Point of View.
Inventor: CARVER THOMAS ALBERT BRIGGS
IPC: G09F19/14
Filed: 1917-02-20
Abstract: 109,735. Carver, T. A. B. Feb. 20, 1917. Moving and changing apparatus.-Relates to a means for obtaining a motion effect in pictures &c. for advertising &c. purposes when seen from a relatively moving point of view. The picture or design is cut into strips mounted on a support be. hind a screen having vertical bars. The Figures show a method of producing the effect of rotation of the design. Three copies of the design a in displaced positions are cut into strips as visible from three points of view through the apertures in the screen b, and the strips are mounted on a support as shown in Fig. 5. Any suitable number of designs may be employed and the relative width of the apertures and bars correspondingly adjusted. The width of the strip of design is made proportional to the distance from the screen, &c. The bars of the screen may be mounted so that the distance apart can be regulated, or the picture may be so mounted that the vertical portions of the design can be adjusted. The apparatus may be mounted on a moving platform and the point of view fixed.
Patent GB-196689-A (GB)
Title: Improvements relating to the manufacture of millboard and similar substances
IPC: D21J1/08
Filed: 1922-01-27
Abstract: 196,689. Masterman, A. T. Jan. 27. 1922. Pulp, adding special substances to; sizing and weighting.-Millboard &c. produced from waste wattle bark and similar tan yard refuse, as described in Specification 182,884, is air dried at 80‹ F., immersed in hot boiled linseed oil, rolled and again dried. If a very hard board is required the material is baked at 180‹ F. in a larger quantity of linseed oil, while a flexible product is obtained by the addition of creosote in the beater. Casein preferably dissolved in alkali, and an oil absorbent such as calcium carbonate, may also be added to the pulp.
Patent GB-190658-A (GB)
Title: Improvements in and relating to auxiliary side screens for motor road vehicles
IPC: B60J1/14
Filed: 1922-01-27
Abstract: 190,658. Ransom, G. H., and Motor Equipments, Ltd. Jan. 2,7, 1922. Pivoting adjustments for the side wind-screens of motor road vehicles comprise engaging friction discs f, j of the members d, e secured respectively to the side wind-screen frame a and the side support c, the members e being shaped to fit closely against the side bar and secured thereto by clamping bars p. A distance piece in the form of a tubular member x is arranged between the upper and lower hinge members so as to transmit to both hinges the thrust of the locking handle m engaging the screwed end of the rod k. The end r of each of the clamping bars p engages the screen rod c, and the other end is shaped to engage an abutment n, as shown in Fig. 2. The bars p are clamped in position by means of lock nuts s engaging screwed pins o. The arrangement described is designed to minimize the gap between the front and side screens. This gap may be. further reduced by forming the inner edge of the frame a with a longitudinal groove adapted to conform with the circular portions of the hinge pillar.
Patent GB-1527431-A (GB)
Title: Discharge lamp operating circuit
IPC: H05B41/04
Filed: 1976-01-23
Abstract: 1527431 Supply circuits for discharge lamps NEW NIPPON ELECTRIC CO Ltd 23 Jan 1976 02584/76 Heading H2H A circuit for supplying at least one discharge lamp FL comprises an A.C. source E, a lamp current limiting device CL connecting the source of the lamp for supplying a low frequency current to the lamp, and an oscillation circuit R for supplying a high frequency current to the lamp during a leading portion of each half cycle of the A.C. source, the voltage supplied by the source being substantially equal to the voltage across the lamp thereby reducing the voltage across the current limiting device. The oscillation circuit R includes a saturable inductance L2 and a semi-conductor breakdown device S and its output is coupled to the lamp via a circuit CT. The high frequency, high voltage output of the circuit R reignites the lamp in each half cycle. The lamp may be a sodium, metal halide or mercury lamp and two lamps provided with filaments may be connected in series. A triac may be connected across the lamp filaments.
Patent GB-1015188-A (GB)
Title: Improvements in or relating to methods and devices for cleaning and/or sterilizing bottle filling apparatus
Inventor: ARBER ROWLAND SACKVILLE PRESTO
IPC: B67C3/26
Filed: 1963-01-21
Abstract: 1,015,188. Bottle filling apparatus. U.D.E.C. Ltd. Feb. 14, 1964 [Jan. 21, 1963], No. 2608/63. Heading B8T. The surfaces of a bottle filling machine, which may be of the rotary type, which normally come into contact with the filling liquid are cleaned and/or sterilized by replacing the bottles by containers 53 having top openings of larger area than the bottle necks and which are of equal or greater height than the bottles, and by replacing the liquid in a bowl 13 by cleansing and/or sterilizing liquid, and causing said cleansing liquid to flow over said surfaces. Each container is positioned with its upper end in contact with a locating member 33 attached to two reciprocally moving rods 17, upward movement of the container causing the rods to move upwardly and an O-ring 39 to be brought into contact with a rim 18 of a filling head. A ring 21 has been previously loosened causing a diaphragm portion 22 of a resilient sealing member to be loosened and to so lift a delivery tube 24 relative to an air release pipe 29. Cleansing liquid thus flows through both the air pipe and between said pipe and the delivery tube, flowing into the container through an opening 36 and also through openings 37 and thence out through a small hole 56 near the container base and into a collecting tray 57. Since the rate of flow into the container is greater than the flow through the small hole 56 the cleansing liquid floods the greater part of the under surface of the locating member 33 and also the surface 34 into which the bottle neck normally fits. The bowl 13 is supplied with liquid through a float-controlled valve which has a part 41 fixed in relation to the bowl and another part 40 restrained against up and down movement, upward movement of the bowl causing the valve to open and the level of the liquid to rise above the air release pipe 26.
Patent GB-359336-A (GB)
Title: Improvements in or relating to gas producers
IPC: C10J3/34
Filed: 1931-01-27
Abstract: 359,336. Gas producer grates. WHITFIELD, C., 2, Layer Gardens, Acton, London. Jan. 27, 1931, No. 2612. [Class 51 (i).] In a gas producer of the kind in which air for limited combustion of the fuel is admitted to small separate sections of the producer grate through air distribution chambers having restricted air inlets as described in Specification 342,646, the relative areas of the restricted openings, compared with those of the grate sections which they supply, are graded over the area of the grate in order, e.g. to compensate for normal irregularities in the depth of the fuel bed as between the sections under the supply hopper or hoppers and the sections near the edges of the grate. The grate comprises bars a having a web b and overhanging grate portions c. Between the webs of adjacent bars are solid ribs d extending to the grate surface and forming the boundaries between adjacent air distribution chambers k. The air supply surface of the grate comprises transverse slits in the portions c and longitudinal slits f between the bars. Between the webs a and beneath the lower edges of the ribs d are slides i having holes j forming the restricted air inlets. The inlets to the chambers are graded in size, those for the inner chambers, for instance, being larger than those for the outer chambers. The slides i may be withdrawn to release ash and the like from the chambers.
Patent GB-688108-A (GB)
Title: Process for the manufacture of ª‡-acylamido-ª‰-acyloxypropiophenones
IPC: C07C233/00
Filed: 1949-02-15
Abstract: Ketonic amino alcohols of formula <FORM:0688108/IV (b)/1> are acylated with an acyl anhydride or halide under substantially anhydrous conditions to yield compounds of formula <FORM:0688108/IV (b)/2> wherein R1 and R2 are the same or different and represent hydrogen, halogen, lower alkyl or lower alkoxy radicals, the term acyl including lower aliphatic acyl, halogen-substituted lower aliphatic acyl, benzoyl, substituted benzoyl and araliphatic acyl radicles.  Acylation catalysts, e.g. inorganic bases, alkaline salts of organic acids, tertiary organic bases, aromatic sulphonic acids and sulphuric acid, may be present and many of these types are specified.  Temperatures may vary from 10-140 DEG  C., about 60-120 DEG  C. being preferred.  An inert solvent, e.g. benzene, pet. ether or toluene may be present.  The products are used in the synthesis of antibiotics.  In examples: (1) a  - nitro - a  - acetamido - b  - hydroxypropiophenone is heated with acetic anhydride and conc. sulphuric acid, and (2) o-methyl-p-nitro-a  - acetamido - b  - hydroxypropiophenone is heated with benzoic anhydride to give the corresponding esters. The preparation of the starting materials is given in Specification 688,023 which is referred to.
Patent GB-285239-A (GB)
Title: Improvements in arresting devices for pit tubs and like vehicles
IPC: B61H9/04
Filed: 1927-01-31
Abstract: 285,239. Butterworth, L. Jan. 31, 1927. Locking by positive detents; back struts; actuated by relaxation of pull. -Pit tubs and the like vehicles are automatically arrested when uncoupled by spring actuated slidable bars 4, Fig. 1 having inclined planes 11 adapted to thrust bolts 12 between the vehicle spokes and flexible connections 23 to the coupling normally maintain the bars in the inoperative position. A sprag on the last tub is adapted to engage the track on the breakage of any coupling in order to momentarily retard the last tubs and ensure the slackening of all the couplings on the run-away tubs and the operation of the sliding bars. The bolts 12 are formed with forked ends 16 and planes 17 complementary to the inclined planes 11 and are encircled by springs 14 to withdraw them from the spokes. The springs 9 actuating the bars 4 bear on brackets 7 secured to the vehicle frame and cross pins 10 on the bars 4. The bars 4 are guided in the bracket 7 and in cross-members 6. Forked brackets 19 support the ends 16 of the bolts 12 against the lateral thrusts of the inclined planes 11. Hand operable hooks 21 are adapted to be engaged with holes in the members 4 to lock them against operative movement. These hooks may be secured by the provision of hook-like extensions engaging a slot in an enlargement of a bolt. When the coupling is a chain the connections 23 may be secured to a cross bar in the chain. To protect the springs 9 from dirt they may be arranged in slots in the bars 4 or the springs may be encased to protect them. The bars 4 may be formed in two overlapping parts secured by screws 27, to facilitate removal. The sprag comprises a double-armed bracket 28, Fig. 3 attached by hooks 29 to the back of the last of the empty tubs going up or the first of the full tubs going down and engaging behind a cross bar 30. A bolt 32 slides in slots in the bracket and carries a stirrup 32 sliding in a cross-piece 33 against a spring 34. A girder 35 long enough to strike the main bars supporting the roof covering timber engages the bolt 31 by means of a slot 36 and is connected by a wire 37 to the first of the empty tubs going up or the last of the full tubs going down to retain the girder in the position shown against its lower weighted end. On breakage of a coupling the wire 37 breaks and releases the sprag into contact with the track and the roof.
Patent GB-123556-A (GB)
Title: Improvements in Life Rafts.
Inventor: KELLY PATRICK
IPC: B63C9/04
Filed: 1918-02-15
Abstract: 123,556. Kelly, P. Feb. 15, 1918. Rafts.-A reversible life raft is constructed of a framework of beams B enclosing a series of tanks D so as to form a central well or chamber fitted with a flooring or deck H capable of being raised and lowered by means of tackle &c. The upper and lower surfaces of the raft are flat, to enable it to be launched easily. The sides are formed mainly of strong netting L, and life-lines &c. may be provided. The tanks contain water, provisions, &c.
Patent GB-1245384-A (GB)
Title: Preparation of mono-hyd rochlorosilanes
IPC: C07F7/12
Filed: 1970-01-21
Abstract: 1,245,384. Preparation of monohydrochlorosilanes. DOW CORNING CORP. 21 Jan., 1970 [19 Feb., 1969]. No. 2856/70. Heading C3S. Monohydrochlorosilanes of the formula (wherein R represents a hydrocarbon or halohydrocarbon radical with the proviso that the total number of carbon atoms in all the R groups present does not exceed 13, and x is 1 or 2) are prepared by reacting an alkoxy chlorosilane of the formula (wherein R<SP>1</SP> is methyl or ethyl) with one or less mols. of a dialkyl aluminium hydride of the formula R11 2 A1H per mol. of OR<SP>1</SP> in the silane (R<SP>11</SP> being an alkyl radical of no more than 18 carbon atoms), the reaction being conducted either (1) in the presence of at least 5 mol. per cent (based on the dialkyl aluminium hydride) of an aliphatic or cycloaliphatic ether boiling above the monohydrochlorosilane product and in which there are no carbon to carbon multiple bonds between the carbon atoms alpha-, beta- and gammato the oxygen, no more than one carbon atom alpha to the oxygen attached to two or more carbon atoms, and no more than one oxygen atom attached to any one carbon atom; or (2) at a temperature not greater than 25‹ C. and thereafter adding at least 5 mol. per cent (based on the dialkyl aluminium hydride) of an aliphatic or aliphatic ether as defined above and thereafter distilling the reaction mixture to separate the desired product. Additional solvents may also be present, and the alkoxychlorosilane starting material may be used in admixture with silanes having no alkoxy radicals attached to the silicon atom, e.g. R 2 SiCl 2  and R 3 SiCl, these latter silanes not taking part in the reaction. In examples dimethylmonochlorosilane, 3,3,3 - trifluoropropylmethylchlorosilane, methyldichlorosilane and phenyl methyl monochlorosilane are obtained as products.
Patent GB-210800-A (GB)
Title: Improvements in or relating to power shovels
IPC: E02F3/30
Filed: 1924-02-04
Abstract: 210,800. Hucyrus Co., (Assignees of Hoar, R. S.). Feb. 3, 1923, [Convention date]. Scoop-arm machines.- In a power shovel of the type in which thrusting or shifting of the dipper handle is effected by the tension in the dipper hoisting cable, one form of which is shown in Specification 177,541, the thrusting or shifting of a swingable dipper handle is effected by the direct action of the tension in the dipper hoisting cable on the dipper handle. In the machine shown in Figs. 1 and 2, the boom 11 receives the dipper handle 14 which is mounted in a rock frame 16, comprising side plates 17 carrying rollers 19, 19' and pivoted on trunnions 20. A cable 22 passing over a sheave 24 restrains the handle 14 against outward lengthwise movement due to the working tension in the hoisting cable 26, which extends over sheaves 28, 29, 30 to one trunnion 20. By pulling on, or releasing, the cable 22, the dipper can be moved inwardly or outwardly. In the shovel shown in Fig. 3, the cable 26 is returned from the sheave 29 over a second sheave 28, to a sheave 31 journaled in the frame 16, and passed over the sheave 30 and anchored at 32 to the frame 16. The cable 22 is passed over a sheave 33 and secured as at 23. The Specification as open to inspection under Sect. 91 (3) (a) shows in Figs. 4 (Cancelled) and 5 (Cancelled) a boom 11<1> straddled by a handle 14<1> of which each leg is slidably mounted between rollers 34 on a frame 16<1>. The cable 26<1> extends round sheaves 35, 30<1>, 36, 28<1>, 29<1> to a support 37, and the cable 22<1> passes over a sheave 38 to support 23<1>. The tension due to the parts of the cable 26<1> adjacent the sheave 30<1> tends to move the handle outwardly against the action of the cable 22<1>. This subject-matter does not appear in the Specification as accepted.
Patent GB-524344-A (GB)
Title: Method of producing elemental sulphur by reaction between sulphuretted hydrogen and sulphur dioxide
IPC: C01B17/04
Filed: 1939-01-27
Abstract: 524,344. Sulphur. IMPERIAL CHEMICAL INDUSTRIES Ltd., BOLIDENS GRUVAKTIEBOLAG, LINDBLAD, A. R., and HERNERYD, F. O. Jan. 27, 1939, No. 2912. [Class 90] Sulphur is prepared by reaction between sulphretted hydrogen and sulphur dioxide in the presence of cement or gypsum with or without metal sulphides or pyrites as a catalyst and at a temperature between 120‹ and 450‹C.