baber/WOPTO huggingface dataset:
Patent GB-491672-A (GB)
Title: An improved viewing device for stereoscopy
IPC: G02B30/30
Filed: 1937-04-22
Abstract: 491,672. Stereoscopic kinematography; optical systems. CAIRNS, A. April 22, 1937, No. 11507. [Class 97 (i)] i Stereoscopic picture elements are viewed by means of one or more, fixed or moving, strips of plane mirror, the arrangement being such that reflected images of the elements are seen only by the appropriate eyes and in apparent superposition. Fig. 2 shows the principle of the invention, c, c<2> being two candles spaced 63 mm. apart and placed about 20 feet from a mirror strip m about 5 mm. wide. Eyes in the positions r, l respectively see an image of one candle only, the two images being of different candles. Two mirror strips m, m<2>, Fig. 4, may be angularly adjusted so that images of corresponding elements p, p<2> of stereoscopically related pictures may be seen by the eyes r, l of an observer, and a plurality of pairs of such strips may be provided to enable other, laterally placed, observers to see the same picture strips. The pictures may be kinematograph or other pictures projected side by side or one above the other from images correspondingly arranged on a film or separately projected, one of the mirror strips being suitably inclined when the images are one above the other. The strips may be reciprocated laterally to scan the complete pictures, or may be carried on an endless continuously-moving band for this purpose.
Patent GB-131408-A (GB)
Title: Improvements in or relating to Milk Cans or like Receptacles.
Inventor: SALT AQUILA JOSEPH
IPC: B65D55/10
Filed: 1918-07-15
Abstract: 131,408. Salt, A. J. July 15, 1918. Stoppers and lids, catch.-The lower portion of the neck 2 of a milk-can or like receptacle is formed with an inwardly-projecting V-shaped part 3, the upper side of which forms a seat for the bevelled part 5 of the lid 4. The lid is secured in place by a pair of bolts 11, which engage the lower part 13 of the projection 3 and are operated by a toothed pinion 8 fixed to a rotatable handknob 9. A spring-controlled catch 14 adapted to be disengaged by hand i$provided for locking the knob 9 against rotation.
Patent GB-128622-A (GB)
Title: An Improved Construction of Metal Wing for Flying Machines.
Inventor: COWPER-COLES SHERARD OSBORN
IPC: B64C3/00
Filed: 1917-08-13
Abstract: 128,622. Coles, S. O. Cowper-. Aug. 13, 1917. Planes, construction of.-A flying-machine wing is constructed with metal spars of open box-girder form and metal ribs, and is covered with stretched sheet metal. The spars are formed of upper and lower thin metal channel members e connected together by vertical pieces f and crossstays g riveted in position. The ribs are of flanged metal, perforated for lightness and threaded on the spars to which they are riveted. The covering is of thin sheet steel or copper, preferably produced by an electrolytic centrifugal process, applied under tension and riveted or welded in position and adjacent sheets seamed together. The parts are rendered rustless by sherardizing.
Patent GB-1221688-A (GB)
Title: Tin electroplating bath and process
Inventor: PICKLES WILFRED
IPC: C25D3/32
Filed: 1968-03-09
Abstract: 1,221,688. Electrolytic tin plating baths. GIEGY (U.K.) Ltd. March 7, 1969 [March 9, 1968], No.11614/68. Heading C7B. Tin is electro-deposited from an acid tinplating bath which comprises an additive produced by heating together at an elevated temperature phenol and an aliphatic polyol containing from 2 to 8 hydroxyl groups per molecule. The aliphatic polyol may be an alkylene glycol, e.g. propanediol, butanediol, etc; an alcohol; a carbohydrate; a mono-saccharide, e.g. a hexose such as glucose, gulose, mannose, galactose or talose, gluconic acid or a lactone thereof, e.g. glucono-S-lactone or a saccharic acid; an oxidation product of a mono-saccharide; or a di-saccharide, e.g. sucrose, lactose, maltose, cellobiose, gentibiose or melibiose. Various substances which may be used are named. An acid catalyst may be used such as sulphuric acid, phenol sulphonic acid, acetic acid, phosphoric acid, boric acid, toluene sulphonic acid, perchloric acid, sulphonated polystyrene resin or other acid form of ionexchange resin, or acid-treated montmorillonite or other activated clay. The resultant product may be further reacted, at elevated temperature with ethylene oxide, e.g. in the presence of an alkaline material such as an alkali metal hydroxide.
Patent GB-541774-A (GB)
Title: Improvements in or relating to means for adjusting exposure times and stop values for photographic or cinematographic cameras
IPC: G03B7/04
Filed: 1939-04-17
Abstract: 541,774. Photographic cameras with exposure meters. ZEISS IKON AKT.-GES. April 17, 1939, No. 11626. Convention date, April 16, 1938. [Class 98 (i)] Means for adjusting exposure times and stop values in photographic and kinematographic cameras comprise a photo-electric exposure with indicating means which is brought to a definite position by adjustment of an associated resistance, together with a differential gear which causes adjustment of either the exposure time or stop independently of the other to produce consequential adjustment of the resistance and also permits simultaneous adjustment of both exposure time and stop to ther equivalent combinations of values without alteration of the resistance, means being provided for indicating the pairs of adjusted values. In the form shown, the differential gear comprises a sun wheel 3 connected by gearing to the exposure-time adjusting ring 1, a planet wheel 10 geared to the stop adjusting ring 11, and a second sun wheel 4 connected with the sliding contact 6 of the resistance in the circuit of the exposure meter. A scale of stops 7 rotates with the sun wheel 4, and a disc 12 rotates with the sun wheel 3 and carries an index mark cooperating both with the scale 7 and with a fixed outer scale of shutter speeds 13. In use, the stop scale 7 is turned to adjust the resistance until the indicator of the exposure meter is deflected to a fixed mark 14, the stop being thereby simultaneously adjusted but the disc 12 remaining stationary. Should it be desired to use another equivalent combination of stop and exposure time to that then indicated on the scales 7, 13 by the index on the disc 12, this disc is rotated until the desired combination is shown, causing simultaneous adjustment of the stop and exposuretime adjusting rings, whilst the scale 7 and contact 6 remain stationary. The contact 6 is secured to a spindle carrying a disc 8 having an adjustable coupling 5 with the scale 7 secured to the sun wheel 4 in order to allow a preliminary adjustment for the sensitivity of the exposure material to be made, a window 9 in the disc 8 exhibiting the adjustment value. In the case of kinematograph cameras the disc 12 is coupled either to means for adjusting the picture frequency or with means for varying the opening of a sector shutter.
Patent GB-1489998-A (GB)
Title: Building heated by utilizing solar energy
IPC: F24S90/00
Filed: 1975-03-20
Abstract: 1489998 Heating buildings by solar energy; ventilating buildings SVENSKA FLAKTFABRIKEN AB 20 March 1975 [27 March 1974] 11710/75 Headings F4U and F4V [Also in Division E1] A building is heated by circulation of air heated by contact with an isolated body 6 and passing around a continuous passage formed by connecting channels around the shell of the building and including a thermal storage body 5. The channel in which the member 6 is situated may be closed by a valve 10 in the absence of solar heat and the air may circulate via a bypass channel 9 interiorly of the member. Electrical heating elements 15 may provide additional heating for the thermal storage body and flow of air through the passage may be induced by jet flow nozzles 16 connected to a fan, air pump or compressor 17. The building may be ventilated by passage of ambient air through air inlets 11 and 14 and exhausted through a duct 18 and a heat exchanger 20 under the influence of a fan 19.
Patent GB-436868-A (GB)
Title: Improvements in or relating to the manufacture of acetic anhydride
IPC: C07C51/56
Filed: 1934-04-19
Abstract: Acetic anhydride is produced by the thermal decomposition of acetic acid vapour in presence of metaphosphoric acid produced by the decomposition of phosphates of volatilizable bases such as ammonium, hydrazine, hydroxylamine, methylamines, ethylamines, cyclohexylamine, and pyridine.  A small quantity of undecomposed organic phosphate in the acid is not detrimental, but the presence of orthophosphoric acid should be avoided; this may be done by adding a small quantity of an alkali metaphosphate or other alkali compound.  Other catalysts for the reaction may be present.  The reaction may be effected at 300--900 DEG  C.  The metaphosphoric acid may be used as a liquid, or may be supported upon a carrier such as silica or carborundum; or small quantities of the metaphosphoric acid, preferably mixed with liquid acetic acid, may be injected into the acetic acid vapour, and this mixture may be passed through liquid metaphosphoric acid.  The acetic acid vapour may contain water, and may be preheated.  The anhydride may be separated by the processes of Specifications 256,663, 279,916, 289,972, 298,667, 303,772, or 310,863, [all in Class 2 (iii)].  In an example, secondary ammonium phosphate is heated to 420--425 DEG  C. for 4\ba1/2\be hours, a small 0,5--1 per cent of sodium metaphosphate being added to the initial material or to the metaphosphoric acid produced.  Acetic acid is passed through this acid at 680--700 DEG  C.  Specification 317,907, [Class 2 (iii)], also is referred to.ALSO:Metaphosphoric acid for the production of acetic anhydride from acetic acid, is produced by heating a phosphate of a volatilizable base such as ammonium, hydrazine, hydroxylamine, methylamines, ethylamines, cyclohexylamine, and pyridine.  The presence of orthophosphoric acid, which is disadvantageous, may be avoided by adding to the initial phosphate or to the metaphosphoric acid a small proportion of an alkali metaphosphate or other alkali compound.
Patent GB-437023-A (GB)
Title: Process of and apparatus for the refining treatment of relatively low boiling cracked hydrocarbons
IPC: C10G25/00
Filed: 1934-04-19
Abstract: When producing by treatment with a solid active adsorbent such as fuller's earth, stabilized gasolines from the gasoline-containing distillates obtained in the cracking of heavy hydrocarbons, the distillate to be treated is subjected to a fractionation designed to free the product from gases and unstable low boiling constituents the presence of which requires excessive pressure to maintain the liquid phase during the purifying operation, and also leads to polymerization to an undesirable extent.  The fractionation may be effected during the fractionation following the cracking operation; or the original gasoline-containing fraction may be subjected to a further fractionation.  This latter form is shown.  Thus, the vapours from a cracking plant, with or without preliminary fractionation, <PICT:0437023/III/1> enter through a reducing valve 2 a fractionator 3 at a pressure of 50--100 lbs. per sq. in.; the gasoline-containing distillate recovered in a condenser 6 and collected in a receiver 9, is passed by a pump 17 through a vaporizer 20 to a fractionator 24 the pressure within which is 125--175 lbs. per sq. in.; the fractionator bottoms are taken by a pump 42, passed through pressure-control valve 44 and re-heater 45<1> fed with the bottoms from fractionator 3, and delivered to one or other of the clay treaters 65, 69 at 300--450 DEG  F., and 300--400 lbs. per sq. in.; the treaters are connected so that they may be used in series or parallel and either with up or down flow of liquid; the purified product is now fractionated in a tower 77 after passing if necessary through a re-heater 97 fed with fractionator bottoms and through a pressure-reducing valve 76, the final fractionation being carried out under pressure of 50--100 lbs. per sq. in.
Patent GB-567422-A (GB)
Title: Improvements in or relating to the production of nitrourea
Filed: 1942-08-26
Abstract: Nitrourea is prepared by dehydration of urea nitrate with a carboxylic acid anhydride, and crystallization from a carboxylic acid crystallizing medium.  Suitable media are acetic and propionic acids, the dehydrating agents being the corresponding anhydrides. Conversion is preferably effected at a raised temperature, e.g. 30-70 DEG  C. with an acetic acid crystallizing medium, the nitrourea crystallizing on cooling.  Concentrated acetic acid, e.g. 90-100 per cent, is preferably used.  A catalyst such as sulphuric acid or sodium acetate may be present. Urea may be dissolved in the medium, converted to the nitrate with nitric acid, preferably of above 95 per cent, and dehydrated without separation.  The product may be washed with a solvent for the crystallizing medium, but not for nitrourea, e.g. benzene, chloroform, carbon tetrachloride, ethyl ether, petroleum ether or acetic acid.  In examples: (1) urea nitrate is added to a mixture of acetic anhydride and concentrated acetic acid at 60-63 DEG  C. The solution is cooled to 27 DEG  C. to separate the nitrourea which is washed with benzene and dried at about 40 DEG  C.; (2) urea is dissolved in concentrated acetic acid from a previous run and 98.35 per cent nitric acid added at 28-33 DEG  C.  Acetic anhydride is added at 30-65 DEG  C. and the mixture cooled to separate nitrourea.
Patent GB-1468468-A (GB)
Title: Cameras
IPC: G03B17/18
Filed: 1975-03-24
Abstract: 1468468 Camera battery testing BALDAWERKE PHOTOGRAPHISCHE GERATE UND KUNSTSTOFF GmbH & CO KG 24 March 1975 [26 Sept 1974] 12122/75 Heading G2A A camera has a lamp (6), Figs. 2, 3 (not shown) connected to a photo-cell 3 to indicate under exposure, a mask 11 movable to a position in which it blocks off light to the photo-cell 3 and a battery test switch 13, 14 which is closed or closable when the mask is in its blocking position so that the lamp (6) lights up if the battery charge is sufficient. In Fig. 1, when mask 11 is slid into the blocking position it closes switch 13, 14 itself and also blocks off light to the viewfinder 9, and objective lens 2. In Fig. 4 (not shown), a hinged mask (17) is shown, a switch actuator (19) being movable to close the switch 13, 14 only when the mask (17) is in its blocking position. Preferably when the mask is not in its blocking position the lamp (6) and an over-exposure indicating lamp (15) are both visible in a viewfinder window, the window being blocked when the mask is in its blocking position and the lamp (6) being visible at the exterior of the camera via a light pipe (16), Fig. 2 (not shown).
Patent GB-1322662-A (GB)
Title: Coating colloid layers
IPC: G03C1/30
Filed: 1971-04-29
Abstract: 1322662 Multi-layer coatings EASTMAN KODAK CO 29 April 1971 [29 April 1970] 12178/71 Heading G2C A vinylsulphonylalkyl compound is incorporated as hardener in at least one but not all of the aqueous coating compositions employed in the production of a photographic member comprising at least four superimposed colloid layers. All the layers are thereby hardened. The hardener may be employed in an amount of 0À5-3 per cent based on total colloid. Various hardeners (e.g. bis(vinyl sulphonylmethyl)ether), colloids (e.g. gelatine), and arrangements of layers for multi-colour printing are specified.
Patent GB-1026458-A (GB)
Title: Aircraft power plant
Inventor: BARLOW WILLIAM
IPC: B64D35/08
Filed: 1964-03-23
Abstract: 1,026,458. Propelling aircraft. BRISTOL SIDDELEY ENGINES Ltd. March 22, 1965 [March 23, 1964], No. 12212/64. Headings B7G and B7W. [Also in Division F1] Gas turbine engines 12, 13 are each connected via a reduction gear-box 14 at the rear of the engine to a shaft 15 extending forwards and connected to a common reduction gear-box 35 via a flexible drive 36 and a freewheel 37. The output from the gear-box 35 is taken through bevel gearing 38 to a vertical shaft driving a helicopter rotor. The freewheels 37 allow one engine to drive the helicopter rotor while the other engine is inoperative. Auxiliary power may be taken from the common reduction gear-box through step-up gearing. In a modification, the flexible drives 36 are omitted, and the shafts 15 are connected through freewheels and spur gearing to a common horizontal shaft connected through a flexible drive and a common reduction gearbox employing bevel gears to the vertical output shaft. In a further embodiment, the output shaft is horizontal and drives an aircraft propeller.
Patent GB-1339925-A (GB)
Title: Polyglutamic acid ypsilon-ester solutions containing alcohols
IPC: C08G69/10
Filed: 1971-04-29
Abstract: 1339925 Polyglutamic acid ester solutions KYOWA HAKKO KOGYO CO Ltd 29 April 1971 [11 May 1970] 12232/71 Heading C3R A mixture comprising an aliphatic halogenated hydrocarbon solvent and a primary or secondary alcohol is used as solvent for polyglutamic acid γ esters. The use of carbocyclic aromatic alcohols is the subject of Specification 1,269,669, and is disclaimed in the present Specification. The polymer may be a homo- or copolymer obtained from the N-carboxy anhydrides of γ esters of glutamic acid with mono- or di-hydric alcohols, several being specified. Various chloro- and/or bromo hydrocarbons are specified. The alcohol may be mono-, di- or tri-hydric and may contain ether links or substituents such as halogen or cyano, nitro or alkoxy groups. The polymer may be prepared in the solvent using an organic base or organometallic initiator. Other solvents may also be included, e.g. dimethyl sulphoxide, formamide or acetamide and the resulting solutions may be mixed with other polyamino acids, cellulose acetate, vinyl polymers or polyurethanes. The solutions are stated to have a stable low viscosity in conjunction with high molecular weight and concentration. Reference is made to Specification 1,218,879.
Patent GB-209382-A (GB)
Title: Improvements in and relating to atomizers
IPC: F23D11/24
Filed: 1923-05-07
Abstract: 209,382. Morse Dry Dock & Repair Co., (Assignees of Strachen, C., and Irish, D. J.). Jan. 5, 1923, [Convention date]. Spray burners. - Atomizing burners, of the kind in which liquid fuel is delivered through tangential passages into a whirl chamber, and which have a series of fixed capacities so that different predetermined amounts of fuel may be sprayed without varying the fuel pressure, are provided with a rearwardly extending neck 13, Fig. 2, in which are formed a number of inclined passages 11 opening into the whirlchamber 10, the inner ends of these passages being at varying distances from the discharge opening. Around the neck 13 is mounted a sliding sleeve 14 by which more or less of these openings may be covered. The sleeve is provided with pins 17 which enter helical cam grooves 16 in the neck 14 and is rotated by means of a rod 15 provided with a handle 22, Fig. 1, having a spring-actuated detent 23 hinged thereto which engages notches 26, Fig. 4, in an arcuate member corresponding with each of the openings 11 in the member 13. Stops 28 limit the movement of handle 22 and consequently the sleeve 14. One of the passages does not extend into the neck 13 but only through the disc at its forward end ; this is always left uncovered so as to allow a sufficient fuel to pass to provide a small quantity of heat to maintain steam when the other ports are closed.
Patent GB-551383-A (GB)
Title: An appliance for use in cutting pieces of sheet material into strips
IPC: D06H7/04
Filed: 1942-09-23
Abstract: 551,383. Cutting sheet material into strips. MURRELL, A. E. Sept. 23, 1942, No. 12310/41. [Class 31 (i)] A device for cutting substantially a discshaped piece of material into a,long strip by trimming it substantially parallel to its perimeter comprises a base plate 10 having mounted on it a longitudinal adjustable block 11, beneath which distance pieces may be placed and which is held rigid after adjustment by a screw 15. The forward end of the block is rounded at 17 to form a guide wall, and is further provided with a finger 22 which serves as an upper guide for the material. The cutting knife 19, which is mounted on a pillar 18 having a chamfered leading edge 20, has an extension tongue 21 which enters a slot in the base plate 10 at a point approximately coinciding with the rear edge of the rounded end face 17 of the block 11. To guide the strip 26 after severance, a member 24 solid with a bar 25 adjustably secured to the base plate is arranged parallel and in spaced relation to one side of the knife 19.
Patent GB-896922-A (GB)
Title: Electromagnetic actuator
IPC: H01F7/14
Filed: 1960-04-07
Abstract: 896,922. Electromagnets. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 7, 1960 [April 17, 1959 (2)], No. 12329/60. Class 35. [Also in Group XXXVIII] A three- or four-position electromagnetic actuator, e.g. for a pressure roller in a magnetic tape transport system, comprises a pivoted arm with an armature further pivoted at one end of it, electromagnets on either side of the armature and means for positioning the armature diagonally across the gap between them. As shown in Fig. 2, springs 54, 55 hold the armature diagonally and the arm 36 then assumes a central position. Energization of either of the electromagnets 41, 42 attracts the armature in the appropriate direction, tilting the arm .36 to one side or the other. In alternative arrangements the springs are replaced by additional electromagnets; in one case (Fig. 3, not shown) four magnets are used, one at each end on either side, so that by energizing suitable pairs the armature may be attracted to one side or the other, or to either of the two diagonal positions; if, then, the armature pivot is not central the arm has four positions, the intermediate ones being determined by the choice of diagonal (Fig. 5, not shown). Several alternative constructions are described, one (Fig. 7, not shown) employing six windings on a single, four-pole, core while that shown in Fig. 13 typifies several others. In this the armature is composed of two parts 29a<SP>11</SP> and 29b<SP>11</SP> separated by a brass strip 41<SP>11</SP>. The part 29b<SP>11</SP> may be attracted to either of the U-shaped cores 35<SP>1</SP>, 361 while 29a<SP>11</SP> bridges the diagonal poles 37d<SP>11</SP> when coil N is energized. Further brass strips 40<SP>1</SP> separate the adjacent poles.
Patent GB-192652-A (GB)
Title: A novel self driving motor or power device
IPC: F03G7/10
Filed: 1922-05-02
Abstract: 192,652. Donath, P. C. May 2, 1922. Self-driving machines.-Relates to a self-driving machine in which a spring 7 is put under tension by means of a lever 8 and the tension is transferred through rods 6, 11, 12, 14 to a beam 15 and thence to a connecting-rod 17 and crank 18. It is stated that the parts having passed beyond the dead-centre under the influence of a fly-wheel 4, a cam 19 forces a disc 26 downwards and thereby, through the action of the system of rods shown in the Figure, returns the spring 7 to its original degree of tension, when the cycle of operations is repeated.
Patent GB-611175-A (GB)
Title: Improvements in method and apparatus for "uplasting" footwear
IPC: A43D47/00
Filed: 1946-04-24
Abstract: 611,175. Making footwear. CLARK, D. M. (Kamborian, J. S.). April 24, 1946, No. 12380. [Class 17(i)] The wrapper 22, Fig. 4, of a platform shoe which has been force-lasted, is turned from the position shown to a position in which it extends around the sides of the platform, by pivoting it, e.g. as shown in Fig. 4, on the crown 17 of a rod 3 reciprocable, so as to be virtually adjustable in a base 1, under the action of a treadle controlled by the operator. The toe or heel end of the wrapper is forced upwards against fingers 14, Figs. 2, 4, which are of wedge-shape in cross-section and shaped and adjustably mounted to suit shoes of different sizes, on a stand 2, as shown. The portions of the wrapper between the toe and heel ends may be turned down into the desired position manually after the ends have been turned. The draw upon the wrapper may be increased by providing on the fingers 14 spring-pressed gripper jaws 25 having manually-operable handles 26. Reference has been directed by the Comptroller to Specification 605,151.