baber/WOPTO huggingface dataset:
Patent GB-541239-A (GB)
Title: Improvements in or relating to locks
IPC: E05B23/00
Filed: 1941-05-23
Abstract: 541,239. Locks. TIBBLES, H. J., and RELYA-BELL, BURGLAR & FIRE ALARM CO., Ltd. May 23, 1941, No. 7291/40. [Class 44] To give greater movement to a lock bolt b than would occur with direct key-operation, the bolt is shot by a toothed disc e meshing with a rack on the bolt and rotated by the key h. The bolt is guided by a pin c thereon sliding in a slot d and is shown in intermediate position. The disc is locked in its extreme position by a stub i thereon co-operating with slots in one or more pivoted spring biased levers n pivoted on pin m. The key depresses the levers to release the disc and also engages a dog g to rotate the disc, the dog being radially slidable on stub i and urged inwards by the curved surface, concentric with disc e, of a block j biased by springs k. When the bolt reaches its extreme position in either direction the dog yields to allow the key to pass, thus releasing the levers n for locking engagement with stub i.
Patent GB-250205-A (GB)
Title: Improvements in mandrel upsetting presses
IPC: B21B25/00
Filed: 1926-03-16
Abstract: 250,205. Schloemann Akt.-Ges. April 1, 1925, [Convention date]. Forging-machines; dies.-Mandrels used in the rolling of tubes by the pilgering process which have become reduced in diameter and extended in length are restored to the original diameter by upsetting in an axial direction by means of a die comprising a number of concentric radially adjustable arcuate members which are set to the required diameter. The concentric washers b are mounted in the two part casing a and are simultaneously adjusted to the required size of mandrel g by means of a hand-wheel and sprockets c, worms d, worm-wheels e and threaded spindles f. With the heated mandrel g in position against an abutment h and the upper half casing pressed down on the lever by hydraulic pressure the mandrel is upset by a stamp i until it contacts on all sides with the arcuate members b, the faces of which are shaped to make contact with the mandrel along two lines.
Patent GB-609241-A (GB)
Title: Improvements in or relating to airfield approach instruments for use in aircraft
IPC: G05D1/06
Filed: 1946-03-08
Abstract: 609,241. Airfield approach instruments. WELLS, M. H. C. March 8, 1946, No. 7329. [Class 4] An airfield approach instrument comprises a casing 1 having a convex dial 2, the right and left sides of which are marked and/or coloured blue and yellow respectively to represent corresponding areas right and left of a line of flight 5 defined by the directing beam from the ground. A needle 8, pivoted at 7, carries a miniature aeroplane 9, the position of which indicates a corresponding lateral deviation from the correct line of flight. A glide path needle 10 is pivoted at the centre of curvature 11 of the dial 2, its forward end 101 extending horizontally across the dial and representing an artificial horizon at a predetermined angle downward from the horizontal. A miniature runway 13 is attached to the needle 101 so that when the aircraft is approaching the runway correctly, the indicator 9 should be on the centre line, and the indicator 13 just in front of it. Fig. 6 indicates that the aircraft has diverged to the left and is undershooting. The dial is provided with panels 27, 28, each having three areas 29, 30, 31 coloured yellow, green and red respectively. When the needle 101 is over the areas 29, 30, 31, the aircraft is overshooting, at the correct height, and undershooting respectively.
Patent GB-293256-A (GB)
Title: Improvements in firing mechanism for small arms
IPC: F41A19/07
Filed: 1927-12-14
Abstract: 293,256. Aspinall, C. L. R. Dec, 14, 1927. Firing appliances.-Relates to smallarms of the kind in which the usual trigger is replaced by a thumb-operated lever, and consists in arranging such a lever A with a pivot A<1> at one end, a thumb-piece B at the other end, and an intermediate projection D adapted to engage a notch E in the firing pin F. The lever is held in engagement with the firing pin by a spring G or by several springs, for example, a weak spring to take the initial pressure and a stronger one to take the final pressure. The thumb-piece B lies in a recess C in the stock C<1>, and this recess is covered by a movable plate, acting as a safety device when in the closed position.
Patent GB-565384-A (GB)
Title: Color-correction of color photographs
IPC: G03C7/18
Filed: 1943-05-11
Abstract: 565,384. Colour photography. TECHNICOLOR MOTION PICTURE CORPORATION. May 11, 1943, No. 7494. Convention date, Nov. 11, 1942. [Class 98 (ii)] Colour photographs are produced by simultaneously producing a colour-component latent 'image and a colour-correction latent image by exposure of two films to different portions of the same light transmitted from a scene along a common optical path, subjecting the films to processing treatment having like effect upon their size and with the latert images forming colour-component and colour-correction records of opposite sign, and then using the records to print a corrected picture whose density at various points is affected by both records. The colour-component records may be formed as silver images or as coloured images, e.g. by colour development, and the printing may be effected in contact or projection printers. As shown, the scene S is photographed in a camera B having a beam-splitter D, the multilayer material for recording the colour components being arranged in the transmitted beam, and a minus-blue filter and the emulsion for recording the colour correction record C being arranged in the reflected beam. The multilayer material is developed by reversal colour development to a three-colour positive, and the colour correction record C by ordinary development to a negative silver image. The blue-component image is printed by projection with yellow light on to a film CB, in front of which is placed the record C. The green-and red-component images are also printed on to separate materials G and R. In a modification, the colour-correction records are produced on a bipack, one film of which is red-sensitized and the other greensensitized, and red- and green-colour-correction negatives are produced therefrom. The multilayer material containing the colour-component images is processed by reversal colour development, and the blue-component positive printed by projection on to a film masked by the greencorrection negative, and the green-component positive printed by projection on to a film masked by the red-correction negative. The red-component positive is printed without correction. The Specification as open to inspection under Sect. 91, refers also to the use of the corrected colour-component records to produce positive imbibition relief matrices, reversal processing being employed if positive corrected colourcomponent records are used, to the use of a tapack for obtaining three colour-correction records, and to the production of colourcomponent records on separate films using a second beam-splitter. This subject matter does not appear in the Specification as accepted.
Patent GB-1128744-A (GB)
Title: Hydraulic pressure stabilising system for a plurality of hydraulic motors
IPC: F16H39/02
Filed: 1967-02-16
Abstract: 1,128,744. Hydrostatic transmissions. DANFOSS A.S. 16 Feb., 1967 [1 March, 1966], No. 7529/67. Heading F2D. In a hydrostatic transmission including drive motors arranged in series, e.g. for vehicle road wheels, a differential piston valve regulates the relative pressure drops across the motors during turning of the vehicle. In the arrangement shown are a pair of identical motors 1, 2, with the control valve 9 connected at points 3, 4, 5 across the respective motors. The valve consists of a pair of pistons 10, 11, the crosssectional area of the latter being twice that of the former, the pistons serving to control entry ports 19, 21 of throttling by-passes 18, 20. Normally, the pressure drops across the motors are equal and pistons 10, 11 are positioned as shown, blocking ports 19, 21, but in the event of the pressure drops becoming unbalanced, pistons 10, 11 move axially to open one or other of the by-pass ports 19, 21 to restore equilibrium. The by-passes may be dimensioned to limit the motor speed differential to a predetermined maximum value, and the relative areas of pistons 10, 11 may be modified to accommodate unequal pressure drops across the motors. A change-over switch (26, Figs. 2 and 3, not shown) may be fitted to connect the motors in parallel.
Patent GB-619510-A (GB)
Title: Improvements in metal cutting machine tools with revolving tool holder face plates
IPC: B23B29/034
Filed: 1946-03-12
Abstract: 619,510. Turning. BERTHIEZ, C. W. March 12, 1946, No. 7666. Convention date, March 20, 1945. [Class 83 (iii)] The surfacing plate 1 of a boring and surfacing lathe has two symmetricallydisposed sliding carriages 2, 21 carrying, respectively, the tool and balancing means such as another tool or a counterweight, and at least one of the carriages is formed of two parts relatively adjustable to provide for initial balancing. As described, each carriage is adjustable relatively to its feed nut 6, to which it is secured by screws or pins. The carriages are simultaneously fed radially by lead screws 8 having bevel gears 9 driven by a wheel 11, the latter being rotatable relative to the surfacing plate by a shaft 13 through a differential 12. For taking up back lash, a second nut 7 may be screwed into the main nut 6 and held in the adjusted position by a notched flange 15 engaged by a collar 14 attached to the main nut; the collar is accessible through an opening 17 closed by a plate 18.
Patent GB-492524-A (GB)
Title: Improvements in or relating to processes of and apparatus for expressing liquids from and disintegrating fibrous material
IPC: B30B9/20
Filed: 1937-03-16
Abstract: 492,524. Crushing vegetable material. STACOM, M. J. March 16, 1937, No. 7688. [Class 59] [Also in Group VIII] In the production of fibrous cellulose for the manufacture of paper, artificial silk, &c., pine or fir wood. banana, stalks, honoquon, hemp, grasses, sugar cane, cornstalks, tobacco, bamboo, palm lea,ves, rhubarb, &c., are crushed whilst green, or moistened with hot or cold water, dilute caustic soda &c. under great rolling pressure to separate sap, resins, sugar, medicinal substances, carbohydrates, oils, albuminoids, alcohols, amides, chlorophyl, &c., and reduce the fibres to a dry, friable mass which may be given subsequent chemical treatment as by a soda, sulphate, or sulphite process, or may be further dried by heat, exposure to sunshine &c. or pulverized, screened, sorted, &c. The material is fed longitudinally and upwardly between a ring 1 and a roller 2 which may have flanges 2a to prevent extrusion sidewise. Thrust, e.g. up to 1,600,000 lb. is applied to the roller-bearings 9 by coiled springs &c. or hydraulic pistons 10 in cylinders 11, the bearings 9 being on arms 7 pivoted at 8, and is opposed by roller 3 on fixed bearing supports 5. Rollers 2 and 3 are preferably both driven as by gears allowing movement of the roller 2 under the hydraulic thrust, or directly by constant speed synchronized motors. The rollers 2, 3 and ring 1 may be cylindrical, frusto-conical, &c. and may have inclined axes to direct expressed sap &c. towards one side. The frame 6 may be recessed and the sap &c. drained off at 6a. The ring 1 may be supported by guide rolls 12 also under hydraulic pressure to allow the ring to dip as raw material is fed in. The hydraulic pressure may be produced by compressed nitrogen &c. acting on a large piston bored to act also as a smaller cylinder containing water compressed against a fixed piston. Crushed fibre is exhausted by suction in a trunk aided by air blown at 58 into a space bounded inter alia by scrapers 52, 53, hinged at 52a and weight or spring loaded to act on the ring 1 and roller 2 along which they may be reciprocated to even wear &c. Alternatively the crushed fibre may be scraped off and fall on to a conveyer belt. The raw material is fed as a thin strip or boards or nearly parallel stalks between two or several converging guides 39 supported at 40, 41 from brackets on the frame 6, or the guides may rise and fall with the ring 1.
Patent GB-879774-A (GB)
Title: Improvements in or relating to dies
IPC: B29C33/00
Filed: 1958-03-11
Abstract: 879,774. Moulding gramophone records &c. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 11, 1958 [March 14, 1957], No. 7799/58. Class 87(2). A die for moulding flat objects such as gramophone records comprises two parts 1, 2 hinged together, a resilient connection being provided between each part 1, 2 and the pivotal point, In Fig, 1 the blades 8, 9 of the pivot 10 are connected by spring plates 6, 7 to plates 4, 5 carrying the die parts 1, 2. Alternatively the blades 8, 9 may be made resilient and connected directly to the plates 4, 5.
Patent GB-830697-A (GB)
Title: Improvements in and relating to strip feeding means
Inventor: STANIFORTH REGINALD WALTER
Filed: 1957-03-08
Abstract: 830,697. Typewriters &c. LAMSON PARAGON Ltd. March 7, 1958 [March 8, 1957], No. 7813/57. Class 100(4) [Also in Group XXXVII] The switch actuating control disc for a tabulator or like machine as described in Specification 777,491 is modified to allow the length of time during which the switch is engaged to be adjusted. Two parallel discs 7, 7a are mounted on a sleeve 6 and are provided with non-coincident slots 12, 12a, extending discontinuously around their circumference, in which an arm 13 of a bracket mounting an actuating stud 15 can be adjustably clamped by a screw 14. The studs 15 screw into threaded holes in an arm 13a of the mounting brackets so that the position of the domed or other cam shaped head 16 can be adjusted radially of the disc so that the length of time it engages the switch can be adjusted. A clamping nut 17 is used or if the hole is not threaded two lock nuts are employed. The arm 13a extends circumferentially of the disc sufficiently to be provided with two or more holes so that the stud 15 can be positioned at any point over those parts of the discs not provided with a slot. As in the prior Specification gearing drives the discs in synchronism with the stationary feed of the tabulator and the switches actuated may control long feeds, web cutting or printing operations. One disc may be used to start a long feed and the other used to stop it. Specification 802,893 also is referred to.
Patent GB-550175-A (GB)
Title: Process for the anodic polishing of magnesium and of magnesium base alloys
IPC: C25F3/18
Filed: 1941-06-20
Abstract: 550,175. Polishing magnesium &c. MAGNESIUM METAL CORPORATION, Ltd., and PEARSON, W. K. J. June 20, 1941, No. 7820. [Class 41] Magnesium and magnesium base alloys are polished by anodic treatment in a substantially non-aqueous electrolyte under the low or the high anode current, density polishing conditions indicated by sections b, e of the graph, which shows the relation between anode current density and applied cell voltage. The electrolyte may comprise a solution of perchloric acid in acetic anhydride, nitric acid in methyl or ethyl alcohol, hydrochloric or perchloric acid in methyl or ethyl alcohol, cyclo-hexanol, ethylene glycol or glycerine, or formic, acetic, oxalic or citric acid in any of the solvents mentioned, to which additions of sugars, glue or other nitrogen-containing compounds, and benzene derivatives may be made. The cathodes employed may be of graphite, lead, austenitic steel or aluminium.
Patent GB-1515479-A (GB)
Title: Crown closure
IPC: G09F23/00
Filed: 1977-02-24
Abstract: 1515479 Crown cork liner JAPAN CROWN CORK CO Ltd 24 Feb 1977 [17 March 1976 23 April 1976] 07834/77 Heading B8T A polyolefin liner 4 is applied to a crown cork shell 2 previously coated with an optional lacquer layer 6, two layers 7, 8 of polyethylene oxide-containing priming composition and a printed layer of indica 5 either between the priming layers or on top of the second layer 8. The liner may then be stripped from the shell, together with the printed layer 5 and the second priming layer 8.
Patent GB-681567-A (GB)
Title: Improvements in or relating to machines for making paper bottle-shaped cartons and other containers of similar form
IPC: B31C9/00
Filed: 1950-03-29
Abstract: 681.567. Makins cartons. NATIONAL PAPER BOTTLE CO. Inc. March 29.1950 [April 6. 1949]. No. 7844/50. Class 18 A machine for forming bottle shaped open ended carton bodies comprises mandrels mounted on a conveyer which carries them past stations for winding cardboard or like blanks on the mandrels, for pressing the wound bodies to produce good adhesion of the cardboard plies, for spinning a bead at one end of the bodies and for stripping the bodies from the mandrels. The machine described comprises a turret rotated by Geneva mechanism 100, 125, Fig. 8, and carrying four rotatably mounted mandrels 30. It produces carton bodies of twoply thickness having tapering necks, from two blanks a, b wound together with their adjacent edges overlapping. Winding. Pre-cut adhesive coated blanks a, b are fed simultaneously to a mandrel 30 positioned between winding rollers 150, 150<SP>1</SP>, by mechanism (not shown) which may be as described in Specification 681,569. The mandrel is positively rotated by the rollers 150, 150<SP>1</SP> each of which comprises two sections 151, 152 coupled together. The leading edges of the blanks, passing over a feed plate 215, Fig. 17, are blown into engagement with the mandrel 30 and roller 150 by air jets issuing from arms 261, the arms 261 swinging into operation with series of fingers 190, 190<SP>1</SP>, Figs. 16, 17, which resiliently hold the blanks against the mandrel during winding. Pressing. The mandrel carries the wound body to pressing rollers 300, 300<SP>1</SP>, Fig. 8 which are similar to the rollers 150, 150<SP>1</SP>, but only one of them need be positively driven. Spinning. The body is brought into alignment with a rotating spinning head 350, Figs. 8, 25, which is advanced against the nose 40 of the mandrel by cam and lever mechanism 386, 389, 391<SP>1</SP>, the mandrel being held stationary. The nose 40 is retractable into the shell of the mandrel against a spring 45, Fig. 25, and has a spinning groove 44 cooperating with the head 350 to form the bead. The nose 40 is forced inwardly by the head 350 until it is held in the retracted position by a latch 55. This latch is releasable by a rod 61 operated by a stationary cam 69<SP>1</SP>, Fig. 16, within the turret hub, after the body has been stripped from the mandrel. Stripping. The mandrel carries the formed body to the stripping station where a pair of dogs 400, Figs. 28, 32, engage the inner rim of the body to strip it from the mandrel. The dogs are operated in slideways on either side of the mandrel by chains 416 reciprocated by a pneumatic piston 441 through rack and pinion 436, 435. The ejected bodies may pass to further machinery (not shown) for fluting the neck portion and shaping the mouth end and inserting and securing a skirted bottom disc, as described in Specification 681,568.
Patent GB-177172-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/58
Filed: 1921-04-26
Abstract: 177,172. Automatic Telephone Manufacturing Co., Ltd., (Assignees of Jacobsen, E.). April 26, 1920, [Convention date]. Drawings to Specification. Automatic and semi-automatic exchange systems.-The wipers of a non-numerical switch of the no-normal type are arranged to take a step forward when the switch is released, so that a subscriber who has become connected to a defective trunk can release himself and on calling again will be connected to the next idle trunk. The invention is described with reference to a system which is the same as that described in Specification 162,297.
Patent GB-124762-A (GB)
Title: Improvements in Apparatus for the Synthetic Production of Ammonia.
IPC: C01C1/04
Filed: 1918-02-28
Abstract: 124,762. General Chemical Co., (Assignees of Jahn, F. W. de). Nov. 3, 1917, [Convention date]. Concentric straight-tube apparatus.-In association with a catalytic apparatus there is employed a series of heat-exchangers 150, one of which is shown. The lower part of the heat-exchanger is shown in Fig. 2 and the upper part of the tubes in Fig. 3. The gas traverses the two annular passages between the concentric tubes 145, 146, 147. The central tube 145 is closed at the bottom and serves merely to restrict the gas passage, but forms the exit at the top at which it communicates by holes 148 with the inner annular passage as shown in Fig. 2. In starting the operation, an external heater is employed which is subsequently cut out.
Patent GB-1099291-A (GB)
Title: A method and apparatus for treating highly viscous substances
IPC: B01J19/22
Filed: 1965-02-24
Abstract: 1,099,291. Compression mixers. ONDERZOEKINGSINSTUUT RESEARCH N.V. Feb. 24, 1965 [March 28, 1964], No. 7973/65. Addition to 1,094,375. Heading B1C. In the method and apparatus of the parent Specification there is at the surface of at least one of the rollers at least one scraper 18 extending along it so that the substance passes over it as at 20. As shown this causes the substance to be retarded so that the rib of material 14 is pleated as at 21. There may be five equidistantly spaced scrapers round each roller (see Fig. 2, not shown); the scrapers may be of semicircular cross-section (see Fig. 7, not shown) and their radial depth may be about half the gap between the rollers.
Patent GB-864682-A (GB)
Title: Improvements in or relating to methods of welding two portions of a thermoplastic material
IPC: B29C65/04
Filed: 1958-03-12
Abstract: 864,682. Welding by dielectric heating. DRITTENBASS, J. J. March 12, 1958 [March 12, 1957], No. 7974/58. Class 39(3). In welding portions of thermoplastic sheets 2, 6, the portions are placed between electrodes 1, 5, together with a buffer layer 3 consisting of impregnated organic fabric 4, and a heat resistant, electrically insulating sheet 7. Pressure between the electrodes is maintained after removal of a high frequency voltage but is released when the welded material has cooled sufficiently to become self-sustaining. The process is suitable for welding polyethylene, polypropylene, polyamide, polyester or polycarbonate, and the buffer material is preferably a P.V.C. having a dielectric loss of at least 0.1 and a high content of plasticizers which soften below the welding temperature. Closely woven cotton fabric is preferred for use with the buffer material, but wool or cellulose acetate may be used. The dielectric loss of the heat resistant sheet is preferably not greater than 0.1 and polyacetate is preferred for use as the sheet; a polyamide such as nylon, polyester, polyethylene and cellulose acetate are also specified. A range of from 20 to 200, preferably 40 to 120 megacycles, is specified for the electric field. The process is particularly suitable for welding thin-walled tubular materials, e.g. from 0.005 to 2.0 m.m. thick, which are filled with liquids and in which the weld is made across the width of the tube while the liquid is in contact with the area to be welded.
Patent GB-547639-A (GB)
Title: Improvements in combined hoe and fork, for garden and agricultural work
IPC: A01G1/12
Filed: 1941-06-28
Abstract: 547,639. Forks and hoes. NEAL, J. H. June 28, 1941, No. 8160. [Class 6 (ii)] A flat-pronged fork is grooved to take a transverse knife-blade retained by a nut and bolt passed through one of the prongs. The centre prong is grooved on the opposite surface to the two outer prongs.