baber/WOPTO huggingface dataset:
Patent GB-691056-A (GB)
Title: Improvements in cinematograph apparatus
IPC: G03B1/42
Filed: 1950-03-03
Abstract: 691,056. Kinematograph apparatus. HOURDIAUX, J. March 3, 1950 [March 7, 1949], No. 5442/50. Class 97 (i). The apparatus contains a detachable support carrying a passage for guiding the film past the exposure aperture and a film beater lever, for producing inter. mittent feed, adapted to be actuated by a cam driven by the mechanism of the apparatus. Fig. 1 shows a support 13 detachably secured in the apparatus by a screw 51. It carries rollers 40 which hold the film against a sprocket 8 which feeds the film to and from the spools. The support also carries the pivot 12 of a lever 11, one end of which carries a beater roller 10 and whose nose 14 is held by a spring 15 in contact with an operating cam carried on the sprocket shaft or driven by gearing from it. A member 33, adjustable by means of a cam 36, limits the beater movement. The cam may be of sinuous form, the lobes having rounded tops (Fig. 5) or flattened tops (Fig. 8). The embodiment in latter Figure also includes registering pins 25 and a reciprocating shutter 18 driven by crank disc 22 geared to the sprocket shaft. In the form shown in Fig. 6 the cam lobes are of ratchet form, the tops of the teeth being circular and concentric with the axis of rotation. In another form the single sprocket 8 is replaced by two others geared from it. One feeds the film from the feed spool, the other to the take-up spool. The support 13 also carries the film passage consisting of two guides (shown in cross-section in Fig. 4), each formed of a fixed plate 41 and a plate 42 (between which the film 9 is guided), the latter being carried on a spring blade 44 extending through a hole 45 in the plate 41 and urged upwardly by a coil spring 47 until the edge of the plate 42 abuts the flange 48 on the plate 41. In a projector, a shutter in the vicinity of the projection position may be driven by spiral gearing from the shaft of the sprocket 8 or when the illumination is indirect, may be carried directly on that shaft. The detachable unit may be exchanged for another to suit a different film size or may be added to a 35 mm. apparatus for feeding substandard film. In this case feed sprockets and the cam driving the beater also form part of the detachable unit and are chain driven from the 35 mm. sprockets.
Patent GB-563547-A (GB)
Title: Improvements in or relating to photographic diazotype printing processes
IPC: G03C1/52
Filed: 1943-04-06
Abstract: 563,547. Photographic contact printing. ENTWISTLE, THORPE & CO. (LONDON), Ltd., ENTWISTLE, H., and SCHOLEFIELD, F. April 6, 1943, No. 5514. [Class 98 (ii)] - A positive photographic image is produced on a metal, wood, glass or like surface from a drawing or the like on transparent or translucent material by coating the surface with a preferably matt white or lightly coloured cellulose ester which is not wholly impervious to water, spraying or otherwise applying to the coated surface an aqueous solution of a light-sensitive diazo compound which will produce a positive image from a positive, but which is not readily affected by light of low actinic value, drying the sensitized surface, bringing the transparent material carrying the drawing into contact with the sensitized surface, exposing to a powerful light, removing the transparent material and developing either with a solution of a coupling component or with ammonia gas, the coupling component being in the latter case either dissolved or dispersed in the solution of the light-sensitive diazo compound. The sensitizing solution may comprise diazotized phenyl p - phenylenediamine sulphate, citric acid, thiourea, acetone and ethyl lactate, and the developing solution #-naphthol, sodium carbonate and sodium chloride. #-Naphthol in a mixture of acetone and ethyl lactate may be added to the sensitizing solution and the material developed in ammonia vapour. The material may be used in the production of templates. The Provisional Specification refers also to the use as a sensitizer of the diazonium chloride of 1 - amino - 2 - naplfthol - disulphonic acid, and to the use as a developing solution of an alkaline solution of resorcinol.
Patent GB-858536-A (GB)
Title: Improved vaccine
Inventor: JR WILLIAM TRUE DAVIS
IPC: A61K39/295
Filed: 1957-02-19
Abstract: Veterinary vaccines comprise a suspension of antigens of viral and/or bacterial origin, at least one of which is a live vaccine and the remainder of which is in the form of a killed vaccine or antigenic derivatives thereof.  Specified combinations include; modified hog cholera vaccine (live) and swine erysipelas bacterin (dead), brucella abortus (live) and black leg bacterin (dead), canine distemper vaccine (live, viral) and canine hepatitis (dead viral), swine erysipelas bacterin (live) and Brynton's (anti-hog cholera) tissue vaccine (dead viral), hog cholera vaccine (live) and E-rhusiopathial (dead).  The antigens may be present absorbed on suitable agents e.g. aluminium hydroxide or phosphate, aluminium potassium sulphate, tannic acid, calcium phosphate. Killing or preserving agents which may adversely effect the live vaccine should be absent and as killing agents these are referred to soluble salts of penicillin, ultra violet radiation, heat and formalin (inactivated by neutralzation e.g. with buffered ammonium hydroxide).
Patent GB-575655-A (GB)
Title: Improvements in guard devices for machinery
IPC: F16P3/00
Filed: 1944-03-28
Abstract: 575,655. Machinery safety devices. FAIRCLOUGH, R., MILLER, N., and BALSHAW, W. M. March 28, 1944, Nos. 5689 and 10540. [Class 80 (iv)] Relates to devices in which a rod prevents opening of covers or doors while a machine is in motion and has for its object to ensure that the rod cannot be moved to unlock the door &c. unless the machine has stopped. As applied to a combing machine, e.g. as described in Specification 574,249, a gear-type oil pump K driven from the machine through gearing D, E, S, delivers oil through a passage Q past a non-return valve P into a cylinder O containing a piston. C with rod C<1> extending into a passage n in the casing cover N. A pressure relief valve is provided at R, and an outlet port at o to prevent the rod C' from striking the cover. The piston is loaded by a spring C<2>. The passage n is intersected by another n<1> at rightangles thereto and in which slides a rod F connected to a lever B which, in turn, is connected by linkage B<1> to a rod T carrying a space device J which determines movement of the belt-shifting fork j. The rod T carries arms H which lock the combing cylinder covers. When the rod T is' rotated to bring the arms H to locking position, the fork j can be moved to bring the belt on to the fast pulley and, at the same time, the lever B is brought to the dotted position, whereby the rod F is moved to the right. When the machine starts, the oil forced into the cylinder by the pumps raises the rod C<1> to a position behind the end of the rod F, thereby preventing movement of the arms H while there is any movement of the machine. When the belt is thrown on to the loose pulley, the piston falls at a rate determined by the size of an outlet port M. When rod C<1> falls below passage n<1>, the arms H may be removed from their unlocking position. In a modification, the piston-rod may carry a striking plate with a hole in it through which the rod F may pass.
Patent GB-1385964-A (GB)
Title: Ballast unit for gas discharge lamps such as fluorescent tubes  or the like
IPC: H01F27/33
Filed: 1972-02-08
Abstract: 1385964 Gas tube supply circuits HANS VON MANGOLDT TRANSFORMATORENFABRIK KG 8 Feb 1972 [11 Feb 1971 30 Aug 1971] 5728/72 Heading H2H [Also in Divisions H1 and G3] A system for supplying a gas discharge tube 22 comprises a transformer 10 having a high leakage reactance of the order of 10-30% and operating under saturation conditions, the core 16 of the transformer having an air gap 18 therein, and a capacitor 20 which may be variable, connected in series between the secondary winding 14 of the transformer 10 and the tube 22, the system operating as a constant current supply for the tube 22. The secondary winding may be divided into two or more sections, in series with each section is connected a capacitor so that two or more tubes may be supplied or one tube from the two or more circuits in parallel. Alternatively the secondary winding as a whole may have two or more capacitors connected thereto so as to be able to supply one, or two or more, tubes. The Specification contains a lengthy theoretical discussion of the operation of the system.
Patent GB-889320-A (GB)
Title: Flame detection apparatus for use with fuel burners
Inventor: NIENHUIS WILLEM JAN
IPC: F23N5/08
Filed: 1960-02-18
Abstract: 889,320. Burglar alarms. NU-WAY HEATING PLANTS Ltd. Dec. 1, 1960 [Feb. 18, 1960], No. 5735/60. Class 118. [Also in Group XL (b)] A burglar alarm comprises a bridge circuit as illustrated, the circuit component values being so chosen that the relay 7 is de-energized when light falls on the photo-electric device 5. This device may be a cadmium sulphide cell or phototransistor. The relay may operate an audible alarm. The apparatus may be used with rectified A.C. voltage, in which case a capacitor is connected across the relay, or with alternating current. The invention is fail-safe in that the relay is energized if any component in the arms of the bridge is either open-circuited or short-circuited.
Patent GB-1449316-A (GB)
Title: Process for the man
IPC: C08F10/14
Filed: 1974-02-08
Abstract: 1449316 Ziegler polymerization of butene-1 CHEMISCHE WERKE HULS AG 8 Feb 1974 [10 Feb 1973] 05795/74 Heading C3P Butene-1 is polymerized, either alone or in the presence of up to 30% of other olefins, in solution in butene-1 or a C 4  fraction comprising butene-1, and butene-2 and/or butane, at 40‹ to 120‹ C. in the presence of a catalyst of (a) a tri(C 2 -C 4  alkyl) aluminium and (b) where n is 0À2 to 0À6, the ratio of Al in (a) to Ti in (b) being 1À2 : 1 to 5 : 1, the concentration of TiCl 3  being 0À01 to 1 m. mol per litre of the liquid phase. Examples refer to the polymerization of butene-1, butene-1/propene, butene-1/ethane, butene-1/ethane/propane or butene-1/hexene in bulk or in a C 4  cut using (a) (C 4 H 9 ) 3 Al, (C 3 H 7 ) 3 Al or (C 2 H 5 ) 3 Al and (b) TiCl 3 . 0À33, 0À5 or 0À56 AlCl 3 , and, in some cases, hydrogen.
Patent GB-120846-A (GB)
Title: Improved Device for Advertising Purposes and Toy for Children.
Inventor: HOPKINSON JOSEPH
IPC: G09B17/00
Filed: 1918-04-05
Abstract: 120,846. Hopkinson, J. April 5, 1918. Word-building, number-building, and like apparatus.-Folded metal strips a bearing numerals, letters, &c. on the outer faces are each formed with a tubular fold which engages, and nearly or wholly embraces, a wire b. A number of these wires are mounted in a frame.
Patent GB-733670-A (GB)
Title: Improvements in or relating to a method of and device for separating light papers from the stencil of manifold printers
Inventor: HARTMANN EITEL
IPC: B65H29/56
Filed: 1953-03-03
Abstract: 733,670. Stencilling-apparatus; delivery apparatus. GEHA-WERKE GES. March 3, 1953, No. 5920/53. Classes 100 (1) and 100 (2). In a stencil duplicating apparatus, a printed paper sheet 9 of weight less than 2 oz. per square yard is separated from the stencil band 7 by means of air streams from nozzles 11. The air streams may be continuous, or intermittent and synchronized with the colour drum 2 so as to act only from when the head of the stencil reaches the point where the sheet parts from the stencil until the sheet is completely separated.
Patent GB-1089302-A (GB)
Title: Improved centrifugal scatterer for fertilisers
IPC: A01C17/00
Filed: 1965-02-11
Abstract: 1,089,302. Centrifugal distributers. AMAZONEN-WERKE H. DREYER. Feb. 11, 1965 [Feb. 18, 1964], No. 5928/65. Heading A1D. A centrifugal distributer for fertilizer comprises delivery members 73 which feed material to an opening 3 of a hopper 2 where it falls on to a centrifugal distributer 6 and the members 73 are removable from the drive shaft 66 and replaceable by others of different shape. The members may be attached to the drive shaft by a bayonet coupling and they may, for certain fertilizers, be removed altogether leaving a hole in the bottom of the hopper which may be used for delivering fertilizer and may be provided with a movable means for adjusting the size of the opening.
Patent GB-218353-A (GB)
Title: Improvements in devices for washing coal and for like purposes
IPC: B03B5/60
Filed: 1923-03-02
Abstract: 218,353. Swallow, J. March 2, 1923. Stationary-vessel wet-separating and washing apparatus.-Coal and shale, ash and clinker, &c., are separated, or coal &c. is graded, by separating the materials into two laterally distinct streams in their fall through a fluid medium and then submitting the materials to the action of a substantially horizontal current of the medium. A closed tank 1 full of water receives a current of water from an inlet 3, the water flowing out through a passage 4 preferably provided with valves 24 to vary the water level. The tank is divided into compartments by partitions 12, 13 with adjustable upper ends 14, 15. The material under treatment is supplied by a chute 22 to a feed passage 5 in which an upward current may be provided by opening an outflow cock 23; the chute is inclined so as to effect the initial separation by giving the material a horizontal component of motion opposed to that of the water from the inlet 3, which water carries the lighter or smaller material into the left-hand compartment. A secondary water current is provided by a lower inlet 7 with an upwardly-turned inner end 9 to prevent dispersal of the main current at this point. The compartments have sloping bottoms and special conveyers for removing the materials. Additional partitions may be provided and the partitions may be slidable. The upward current in passage 5 may be produced or controlled by a baffle. Specification 164/93 is referred to.
Patent GB-495932-A (GB)
Title: Shuttle driving mechanism for circular weaving looms
IPC: D03D37/00
Filed: 1938-02-26
Abstract: 495,932. Circular looms. SOC. A.R.L. ETABLISSEMENTS ROTATISS. Feb. 26, 1938, No. 6166. Convention date, Feb. 27, 1937. [Class 142 (ii)] Each shuttle is driven by means of an endless belt &c. 21, Figs. 1 and 4, which cooperates through the shed of the warp threads 5 with a roller 22 freely rotating on the shuttle, or alternatively by a roller 22<1>, Fig. 6, which co-operates with an endless belt 21<1> on the shuttle. The belt 21 is carried by pulleys 19, 20 on supports &c. 12, 14 on a platform 7 driven bodily around the loom on ball bearings 8 by helicoidal gearing 10, 11 and a driving shaft 9. The shaft 13 to which the pulley 19 is fixed carries a coned pinion 15 engaging a fixed toothed crown 16 on the central frame, the pulley 20 being thereby rotated and driving the belt so that the warp threads are not displaced laterally. The belt may be of round, square, trapezoidal or flat section and may have grooves or cells for housing the warp threads, or may be replaced by an articulated chain. It may be driven by both pulleys. A friction roller or a belt may be used for driving the pulley. Several shuttles may be driven by the same belt.
Patent GB-557223-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: B29D5/02
Filed: 1942-05-08
Abstract: 557,223. Moulding sliding-clasp fasteners. LIGHTNING FASTENERS, Ltd. (Talon, Inc.). May 8, 1942, No. 6211. [Class 44] [Also in Groups V and XXII] Fastener elements of a sliding-clasp fastener moulded in situ on the stringer tape are so shaped that the parts 16, 17 of a two-part mould in which they are formed may be removed from the moulded members in a direction inclined at an acute angle to the surface of the tape 1. The mould parts 16, 17 have recesses 23 holding the tape with its beaded edge 2 projecting into the mould cavities 24 and are fed over rollers (not shown) through a feed device having a piston 21 and feed duct 22 which is elongated in the direction of the length of the tape to increase the time during which the material is being forced into the mould cavities, the cavities preferably being so disposed that the ends of the finished members are flush with the upper surface of the mould as shown. Fig. 3 shows a series of fastener members together with the mould parts in section. Fig. 4 shows a single member comprising jaws 4 embracing the tape head 2 and connected by a reduced neck 6 with the head 5 provided with a pointed projection 8 adapted to engage in a recess 7, Fig. 3, in the lower face of an adjacent member. The upper surfaces of the member and the walls of recess 7 are inclined at acute angles to the plane of the tape to allow separation of the mould parts in corresponding directions. The case parts 25 which form the recesses 7 may separate symmetrically as in Fig. 3, or may be carried entirely by one of the mould parts.
Patent GB-742804-A (GB)
Title: Improvements in and relating to electric lamps
IPC: F21L4/00
Filed: 1953-03-06
Abstract: 742,804. Electric battery lamps. MEAGER, V. W., and BARKER, S. N. Feb. 19, 1954 [March 6, 1953], No. 6247/53. Class 39(2). In an electric battery lamp comprising a casing 11 having a closed end 12 and an out. wardly flared open end 3 provided with a flanged rim 14, with a rimmed metal reflector 15 providing a bulb holder 16, a removable ring or collar 22 made of rubber or like resilient material holds the rims of the casing towards one another while preventing direct contact between them, and permitting their partial relative rotation to effect switching of the lamp circuit. Preferably the rims 14, 18 of the casing and reflector are engaged in separate annular grooves separated by an annular rib 24 on the inner periphery of the rubber ring 22, and the inwardly directed rubber flange 25 which engages the rim 18 of the reflector extends partly over the edge of a front cover 19 made of glass or other transparent material seated in a rebate 20. In the example the bulb circuit is closed when the reflector 15 is rotated relative to the casing 11 and a pair of metal claws 26 extending rearwardly from the reflector and shaped to ride upon an annular cam 32 of insulating material are brought into contact with contact faces 29 on internal ledges 30 inside the flared end 13 of the casing, the resilient rib 24 being compressed to allow of this movement. In a modification the adjacent faces of the rims or flanges 14, 18 are provided with contact elements and insulating strips spaced alternately around their circumferences, the closing or opening of the bulb circuit being effected by partial relative rotation of the two rims. Preferably the casing and the reflector are each made in one piece of die-cast aluminium or aluminium alloy.
Patent GB-1130812-A (GB)
Title: Cast or pressed plate for use in connection with the packing of cups
IPC: B65D71/70
Filed: 1967-02-09
Abstract: 1,130,812. Moulded sheet for packing cups. BRODRENE HARTMANN A.S. 9 Feb., 1967 [28 Feb., 1966], No. 6276/67. Heading B8P. A moulded fibre pulp &c. plate for packing cups comprises areas 12 on which the bases of cups sit, and rows of hollow usptanding projections 14 between the areas 12 for guiding the lower portions of the cups, and on the underside hollow projections 16 between the areas 12 and below their level, the projections 16 having shoulders 18 which contact the tops of the cups only at their edge portions. The edges of the plates have finger openings 30 for ease in packing.
Patent GB-858286-A (GB)
Title: Process for the manufacture of unbranched aliphatic ª‡-hydroxy-and ª‡:ª‡-dihydroxy-dicarboxylic acids containing at least five carbon atoms
Inventor: RINGEL JOSEF
IPC: C07C51/00
Filed: 1957-02-25
Abstract: Unbranched aliphatic a -hydroxy and a , a 1-dihydroxy dicarboxylic acids containing at least 5 carbon atoms are obtained by heating a polysaccharide with an aqueous or alcoholic solution or suspension of an alkali metal or alkaline earth metal hydroxide, the amount by weight of the hydroxide being at most equal to that of the polysacchoride, under superatmospheric pressure at above 170 DEG  C. for up to about 1 hour, and isolating the said hydroxy dicarboxylic acids from the resulting reaction mixture.  Suitable polysaccharides are cellulose, hemicellulose, xylan and mannan, starches and dextrin. The reaction is preferably effected at 200-250 DEG  C. and may be carried out batchwise or in a continuous manner.  The process is preferably carried out in the absence of atmospheric oxygen and in the presence of salts of iron, cobalt or manganese, sodium sulphite, or compounds of the metals of the second subgroup of the periodic system, e.g. of zinc or cadmium as catalyst.  The hydroxy di-carboxylic acids may be recovered in the form of their relatively insoluble zinc or calcium salts, but are preferably recovered by extracting the reaction mixture with a solvent such as ether or ethyl acetate and then esterifying the extract, after removal of the solvent, e.g. by reacting with methanol or ethanol usually in the presence of a mineral acid, or by reacting with diazomethane and then separating the resulting esters by fractional distillation in vacuo. The ester distillate fractions may then be further separated by treating with alcoholic ammonia and separating the amides formed by fractional crystallisation. Some formic, acetic, oxalic, succinic, a -hydroxy butyric, glycollic and lactic acids are obtained as by-products and may be recovered in the form of their esters. Examples are given for the production of a , a 1-dihydroxy adipic acid and a -hydroxy glutaric acid from beech cellulose and pine cellulose, the acids being isolated in the form of their zinc or calcium salts and of a , a 1-dihydroxy pimelic acid and a -hydroxyglutaric acid from xylan (obtained from beech wood), the acids being recovered in the form of their ethyl esters.  The calcium salt of a , a 1-dihydroxy adipic acid may be reacted with sulphuric acid to yield the free acid.
Patent GB-176377-A (GB)
Title: An improved process for the manufacture of light-proof lithopone
IPC: C09C1/06
Filed: 1922-03-03
Abstract: In making light-proof lithopone, the zinc salt solution, the baryta lye, and the water used in the process, are purified and clarified by producing small quantities of a purifying medium in the liquids.  For example, a small quantity of an iron or aluminium salt is added, and precipitation is effected by adding a slight excess of a carbonate, phosphate or hydrate, the liquids being then boiled and filtered. The barium sulphide solution is obtained by treatment of a baryta lye, purified as described above, with sulphuretted hydrogen.