baber/WOPTO huggingface dataset:
Patent GB-709220-A (GB)
Title: Improvements in or relating to apparatus for grading eggs and the like
IPC: B07C5/22
Filed: 1951-07-11
Abstract: 709,220. Conveyers. PRESTON & DISTRICT FARMERS TRADING SOCIETY, Ltd., and JONES, N. Oct. 13, 1952 [July 11, 1951], No. 16395/51. Class 78 (1) In order to prevent damage to eggs in transit from a sorting and grading station to a packing station, they are conveyed from the "spinners" 10, Fig. 1, along a smooth surface 13 by means of a push - plate conveyer, the slats 17 of which together with stationary longitudinal strips 20 form a rubberfaced network each mesh of which may accommodate one egg, and are guided on to underlying main conveyer belts 23 by means of a descending ramp 25, 27 provided with soft rubber rails 26, 28, 29, Fig. 4. Preferably the slats 17 are made of wood or other stiff material covered with rubber 18 rounded at the forward edges and faced with sponge-rubber buffers 19 on their trailing edges, their ends being secured to endless conveyer chains 16 driven by sprockets 15. The egg-dropping ramp comprises an entrant portion of sheet metal 25 forming a continuation of the base plate 13, the remainder 27 being of soft sheet rubber having a cut away recess 30 in its lower edge and a curved guide rail of sponge rubber along its outer margin the upper edge 28 of which has a smaller curvature than the lower 29. A transverse bar 21 carrying a dependent flap of rubber 22 checks the impetus of the egg as it rolls over the sloping hinged flap 12 feeding eggs from the spinners 10 on to the conveyer table 13.
Patent GB-932481-A (GB)
Title: Improvements in metrology apparatus incorporating optical gratings
IPC: G01D5/38
Filed: 1959-05-13
Abstract: 932,481. Electric selective signalling systems. J. GUILD. May 13, 1960 [May 13, 1959], No. 16484/59. Class 40 (1). [Also in Groups XX and XXII] A measuring or control system employing two relatively movable optical gratings is characterized in that one of the gratings consists of diffusely reflective strips separated by black bars. The position of one grating with respect to the second is then determined by passing light through the transparent grating on to the reflective grating, from which it is reflected to again pass through the transparent grating, and photo-electrically counting the moire fringes so produced. This system has the advantage over systems using two transparent gratings that the reflective grating can be made of stainless steel or aluminium which is considerably less fragile than glass, especially where long gratings-for example those attached to machine tool beds-are concerned. Moreover by using metal the grating can be constructed in the form of a plastic tape. Specifications 817,051 and 932,471 are referred to.
Patent GB-334233-A (GB)
Title: Process and apparatus for turning cigarettes right side up as they are fed to the packing machine
IPC: B65B19/06
Filed: 1929-05-29
Abstract: 334,233. Berger, M., and United Cigarette Machine Co., Akt.-Ges. May 29, 1929. Packeting cigarettes in receptacles. - Devices for use in packeting machines, for reversing incorrectly disposed cigarettes, comprise means whereby a group of the cigarettes and an observation post travel at the same speed and without relative movement, so that an operator or automatic turning device has sufficient time to detect inaccuracies and to correct them. A frame 26, Figs. 1 and 2, is placed above the conveying devices 10 so that eight cigarettes 13 are visible through an aperture 26<1> therein. The frame moves to the left with the conveyer and then returns to the position shown with a quick return movement. The movement of the frame is effected by the engagement of pins 27 on the conveyer riding over guides 28, 28'. When a pin drops on to the guide 28', a weight 29 returns it to the starting point. If a cigarette is incorrectly placed, the operator presses the corresponding key 1 - - 8 to release turning mechanism. Each key 1 - - 8 is connected to a corresponding conductor 35' - - 35<8>, and to a return wire 35, a battery 36<a> being interposed. The conductors 35', &c. each lead to a separate roller or rubbing contact 37 co-operating with contact rings 38 on a disc 36, Figs. 1 and 3. Discs 41, 42 are fixed to the disc 36 and carry respectively a contact 45 for the return wire 35 and a series of armatures 46, each opposite a corresponding electromagnet 39 in the disc 36. The electromagnets are each connected to a corresponding contact strip, so that, when any circuit is completed by pressing a key 1 - - 8, the corresponding armature 46 is drawn to the right, Fig. 3. This allows a lever 48, Fig. 1, to fall into the position shown in broken lines and to elevate a stop 15 into a position where it will engage and turn over a cigarette 13 on the conveyer 10. Instead of manual operation by keys, photo-electric or selenium cells may be mounted to move with the cigarettes and to operate suitable relay devices.
Patent GB-553249-A (GB)
Title: Process of treating dilute aqueous rubber dispersions
IPC: C08J3/03
Filed: 1941-12-24
Abstract: 553,249. Rubber dispersions. REVERTEX, Ltd. (Kemp, I.). Dec. 24, 1941, No. 16632. [Class 70] Dilute aqueous dispersions of natural or synthetic rubber, gutta-percha, or balata, containing a high proportion of solid non- rubber constituents, such as the skim obtained in centrifuging or creaming rubber latex are treated to recover the rubber in the form of a purified dispersion by flocculating the rubber by addition of sulphuric, nitric, hydrochloric or acetic acids, filtering and washing the flocculated rubber, and re-dispersing it in dilute caustic potash or ammonia. The dispersion may be mixed with fresh latex to be concentrated. The skim may be first deammoniated by treatment in a vacuum and the ammonia recovered as described in Specification 461,216. In treating skim from vulcanized latex, zinc oxide is added to the de-ammoniated skim to decompose ammonium polysulphide.
Patent GB-552824-A (GB)
Title: Improvements in and relating to the treatment of waste water from beet-sugar factories
IPC: C02F1/66
Filed: 1941-12-24
Abstract: 552,824. Purifying waste water; food for animals. WINTZELL, T., and LAURITZSON, N. T. L. Dec. 24, 1941, No. 16648. Convention date, Dec. 14, 1940. [Classes 5 (ii) and 111] Waste water from the diffusion process in beetsugar factories is treated for re-use in the process by adding a strong mineral acid, preferably sulphuric acid, to precipitate colloids and separating the flocculent precipitate. Preferably sufficient acid is added to lower the pH to about 3.6. As shown, the wet pulp discharged from the diffusers 1 is conveyed as by an elevator 6 and a screw conveyer 7 to presses 8 and the press water is led via a pulp filter 10 to a vessel 11, fitted with an agitator 13 and fed with acid by a pipe 12 under the control of a water meter 14 in a conduit 15 leading to a decanting apparatus 16 from which the clarified water is led by a pipe 17 to a feed reservoir 5 for the diffusers. Further concentration is effected in centrifugal separators 18, the water discharged therefrom being also led to the reservoir 5. Alternatively a filter aid, such as sand, infusorial earth or cellulose fodder, may be added in the vessel 11 and the liquid filtered directly or led to the decanting apparatus and the concentrate filtered. The water discharged from the diffusors 1 may be treated similarly or led via a sand separator 3 and a pulp filter 4 to the reservoir 5. The albuminous concentrate may be used for cattle food either alone or mixed with molasses, beet slices or pulp, or cellulose fodder; it may be led to a drum drier 19, connected with a cyclone 20 and a fan 21, and packed in bags at 22 and amy be mixed with beet pulp fed by a screw press 23.
Patent GB-388631-A (GB)
Title: A process for preparing a remedy for cancerous tumour, and product obtained thereby
IPC: A61K35/44
Filed: 1932-06-13
Abstract: In the preparation of remedies according to the parent Specification from human or animal umbilical cords or the eggs of birds, fishes, or reptilia the materials extracted are purified by dialysis.  The aqueous extract of umbilical cords &c. is filtered and evaporated, the solid residue dissolved in water and placed in a dialysing bladder which is suspended in water.  The water in the vessel is replaced until it ceases to become coloured, collected and evaporated to give a solid product, free from albuminous and fatty substances and stated to be effective in the treatment of cancer.
Patent GB-924658-A (GB)
Title: Improved photographic material
IPC: G03C1/49
Filed: 1959-05-15
Abstract: 924,658. Photographic materials. MINNEAPOLIS - HONEYWELL REGULATOR CO. May 15, 1959 [May 26, 1958 (2)], No. 16791/59. Class 98 (2). A photographic silver halide print-out emulsion contains as sensitizer up to 20% by weight, based on the weight of silver halide, of the iodide of either lead or cadmium. The silver halide may be the bromide, which preferably contains some co-precipitated silver iodide. The emulsions may be further sensitized with thioura, thiocarbamide, thiosemicarbazide, pmethylamino-phenol sulphate or mercaptosuccinic acid, and they may include carriers such as pregelatinized dextrin, gelatin, starch, dextrin, silicones or polyvinyl alcohol, and suspending agents such as seaweed extracts. When the carrier is other than gelatin, the coated paper may be heat treated, e.g. up to 400 F. for from 10 to 30 seconds. Examples are given of the precipitation of silver halides by adding slowly an ammoniacal silver nitrate solution to hot aqueous potassium bromide, which in some cases contains potassium iodide, washing the precipitate formed, and dispersing it with cadmium iodide in starch solution, or with lead iodide and thiourea in dextrin solution. These dispersions are then coated on to paper, and heat-treated at 400 F. for 20 sees.
Patent GB-629376-A (GB)
Title: Travelling electrical contactor
IPC: B60L5/06
Filed: 1947-06-26
Abstract: 629,376. Electric railways. BENBOW, B. W. June 26, 1947, No. 16914. Convention date, Dec. 10, 1940. [Class 104 (iii)) A collector 12 comprises an endless chain of conductor elements 21 engaging the conductor 10 and moving over a bus-bar 31. The conductor elements are of toothed form to enter gaps 18 in the insulation around the wire 10. The chain passes over one or two insulating wheels 23. The bus-bar 31 formed in three sections 31a, 31b, 31c is mounted on a rubber cushion and has a connection 38 leading to the vehicle. The wire 10 is surrounded by a twopart plastic insulation 13, 14.
Patent GB-1147223-A (GB)
Title: Apparatus for detecting increases in thickness of strip material
IPC: G01B7/06
Filed: 1966-04-19
Abstract: 1,147,223. Measuring thickness, electrically. HANS BIEL K.G. April 19, 1966 [April 30, 1965], No.17002/66. Headings G1M and G1N. An apparatus for detecting increases in thickness of strip material e.g. paper strips comprises a scanning element 1 and a signal detector 14 actuated by the scanning element, which detector operates means for indicating the thickness increases of the strip over a predetermined permissible increase in thickness of the strip, the scanning element being resiliently yieldable in the direction 13 of travel of the material strip means 10 for raising the scanning element so that the edge 1a thereof is positioned above a guide surface at a distance corresponding to the standard thickness of the strip under test plus the said permissible increase in thickness in the strip. The scanning element 1 is suspended from a support bar 5 which is secured to the machine frame by two precision adjustment screws 10. The strip material P is fed over a guide roller 3, the scanning element being at right angles to the strip material. The movement of the scanning element in a direction opposite to the direction of travel is limited by a stop 12. The movements of the scanning element, which only occur if the strip is thicker than the permissible thickness, are detected by a Piezo-electric crystal 14 mounted on a disc 17 made of insulating material through which pass the connector wires 21. The scanning element is set above the guide roller 3 by an amount equal to the permissible thickness of the material and then a sample of the material is inserted between adjustment nut 10 and bushing 9 to raise the scanning element a distance equal to the standard material thickness so that the scanning element only contacts the strip when it exceeds the permissible value.
Patent GB-835885-A (GB)
Title: Improvements in vacuum pumps
Inventor: HAINE MICHAEL EDWARD
IPC: H01J41/16
Filed: 1956-06-01
Abstract: 835,885. Obtaining high vacua. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 22, 1957 [June 1, 1956], No. 17009/56. Class 8(1). A method of continuously supplying a getter metal in vaporised form to an evacuated chamber consists in heating a rod or wire 1 of getter metal located within the chamber at a region 5 intermediate its ends to a temperature such that the rod is melted locally in a zone (between limiting shields 6 and 7) sufficiently short to ensure the retention of the molten metal by surface tension between the adjacent solid portions of the rod, the rod being continuously fed to maintain the molten zone against complete evaporation of the metal. The rod 1 has one end fixed to a support 2 and the other mounted in a feed mechanism 3, and melting is effected by a source of bombarding electrons or an eddy current heating coil. In the Fig. 4 is a thermionic filament, but current could be passed through the rod to provide the molten zone.
Patent GB-1041074-A (GB)
Title: Two-position, pilot-operated, valve
IPC: F16K31/42
Filed: 1963-04-30
Abstract: 1,041,074. Valves. W. D. LUDWIG. April 30, 1963, No. 17017/63. Heading F2V. A main spool valve 50 has lands 58, 55 and a piston 52 at each end which slides in a cylinder 41; the spool valve body 10 is bolted to a base 11 forming a fluid manifold. The valve 50 cooperates with bores 46-49 in partitions between chamber 13-17; the centre chamber 15 is connected to supply, the end chambers 13-17 to exhaust and the intermediate chambers 14, 16 to motor ports. A solenoid-actuated pivotvalve 72 disposed in the spool valve has two closure parts 74, each of which controls the supply and exhaust of fluid to and from its respective cylinder 41. The lands 55, 58 are provided with sealing rings 59, 60 whilst cushions 85 are arranged to absorb the impact of the spool valve. With the solenoid 105 de-energized the pilot valve is held in -the rightward position shown by a spring 90 and fluid from chamber 15 can only pass to the right-hand cylinder 41 via a port 68 and the interior of the spool valve 50 and urges the latter leftwards. In this position of the valve 50 the chamber 15 is also connected to motor chamber 14 whilst the other motor chamber 16 is open to exhaust chamber 17. When the solenoid is energized the pilot valve 72 is moved to the left against its spring 90 so opening the right-hand cylinder 41 to vent through openings 87 and admitting pressure fluid to the left-hand cylinder 41 whereupon the spool valve 50 is moved to reverse the chambers connected to the motor. In another form, the spring and associated lockable cover are replaced by a second solenoid and cover. In a further embodiment, the interior of the spool valve is provided with a rubber tube acting as non-return valve for the fluid passing to the valve-actuating cylinders.
Patent GB-199255-A (GB)
Title: Improvements relating to electrical transformers
IPC: H01H9/00
Filed: 1922-06-20
Abstract: 199,255. Ellis, A. G., and Metropolitan- Vicker's Electrical Co., Ltd. June 20, 1922. Regulating transformers; polyphase transformers.-A transformer is regulated by means of a switch mounted inside the transformer casing, the switch comprising one or more contacts 8 adapted to be moved by a combined rotational and translatory movement over contacts 5 connected to tappings 14 on the winding or windings 3. For the three-phase star-connected transformer shown, a movable contact 8 is provided for each phase, the contacts being electrically connected by a metal sleeve 15 which is mounted on, but insulated from. a shaft 7 rotated by a handwheel 12 outside the casing. The shaft 7 has a screwed portion 9 located in a nut 11 secured to the casing. In a modification, tappings are taken from intermediate, points of each winding, and the movable contacts are insulated from each other, each movable contact being adapted to bridge each pair of fixed contacts of its respective phase in turn.
Patent GB-144121-A (GB)
Title: Stain made from leather waste
IPC: B27K5/02
Filed: 1919-07-08
Abstract: A composition for staining wood, leather, &c. is prepared by heating leather waste with a mineral acid such as hydrochloric or nitric acid, and, when the mixture has become plastic, adding caustic alkali, which yields a gelatinous solution.  Sulphate of iron may be added to the solution, or the wood &c. may be treated with sulphate of iron after treatment with the stain.
Patent GB-925395-A (GB)
Title: Improvements in transistor oscillator
IPC: H03B5/36
Filed: 1959-05-20
Abstract: 925,395. Transistor oscillator circuits. GENERAL ELECTRIC CO. May 20, 1959 [June 2, 1958; June 18, 1958], No. 17102/59. Class 40 (6). A crystal oscillator comprises a junction transistor having a base bl connected to a crystal XB1, an output circuit L1, C6 which is slightly inductive at the frequency of operation so that feed-back through transistor causes the input circuit to appear as a negative resistance and an emitter capacitance C5 (formed by stray capacitance augmented if necessary). This capacitor reduces the base input capacitance and by suitable choice of the value of the crystal may be caused to operate at a harmonic mode. By tuning the output circuit appropriately, harmonics of the fundamental crystal frequency or of the operating mode may be selected in the output circuit. An output may alternatively be derived at the transistor base. A tetrode transistor having a second base b2 is shown, but it is stated that a triode junction transistor could alternatively be used. In Fig. 1 (not shown), base b2 is isolated from earth and connected to base b1 through a capacitance.
Patent GB-911976-A (GB)
Title: Method of apparatus for spinning a parallel wire suspension cable
IPC: E01D19/16
Filed: 1959-05-20
Abstract: 911,976. Bridges. COLORADO FUEL & IRON CORPORATION. May 20, 1959 [Nov. 6, 1958], No. 17107/59. Class 20 (1). [Also in Groups XXV and XXX] A cable for a suspension bridge is made in position by first laying in known manner a guide wire 13 across sheaves 17, 18, on the bridge towers 10, 11 in conformity with the desired catenaries, anchoring it at 14 and 19 and marking the wire 13 adjacent fixed points on the sheaves 17, 18 and anchorages 14, 19. The guide wire 13 clamped at the tops of the towers 10, 11 during the process of forming the catenaries is then released from the clamping devices on the towers and placed under a number of hold-down sheaves 27 positioned along a foot walk 12, under which sheaves it is held by the tension exerted by a counterweight 21. The free end of wire on a reel 22 is next anchored at 14 and a loop therefrom in the form of a fixed wire 26 and a running wire 23 is laid as by means of a spinning wheel unit 25 parallel to the guide wire 13 and beneath sheaves 28, a counterweight 29 being attached to its far end by a rope 30. The fixed wire 26 is then marked in alignment with the markings on the guide wire 13. After all the wires of a strand have been so gauged, the guide wire and strand wires are released from the hold down sheaves and the strand wires moved so that their markings coincide with the fixed markings on the towers and anchorages. The spun wires from the sheaves 17, 18 are then transferred by a picking beam into the saddle of the tower. Two or more wires may be spun simultaneously with an appropriate number of pulleys in the sheaves.
Patent GB-314489-A (GB)
Title: Improvements in or relating to the transmission of signals to a travelling locomotive or train
IPC: B61L3/12
Filed: 1929-06-04
Abstract: 314,489. Vereinigte Eisenbahn-Signalwerke Ges. June 28, 1928, [Convention date]. Track apparatus actuating signals on trains and for stopping trains.-A glow-discharge lamp d in series with a brake-controlling magnet e is normally lighted and the magnet is energized, by the potential across the condenser b which lies betweent the ignition and extinction potentials of the lamp. At a track device comprising a tuned circuit 2 the potential is reduced and the lamp is extinguished and remains so until readjustment of the train apparatus to raise temporarily the potential above the ignition limit. The glowdischarge lamp is formed as a rectifier.
Patent GB-229929-A (GB)
Title: Improvements in and connected with machines for treating ores and other materials
IPC: F27B21/06
Filed: 1924-07-17
Abstract: 229,929. Tugwood, R. J., (Dwight & Lloyd Metallurgical Co.). July 17, 1924. Open - pan sintering apparatus.-In apparatus for sintering ores of the kind in which receptacles 2 containing the ignited ore are moved over a suction box 11 whereby air is drawn through the ore, and flexible jointing means controlled by the air pressure are provided for making an air-tight joint between the suction box and the receptacles, the sealing means are in the form of flexible and pliable strips 14 arranged to lie loosely in contact with supporting ledges 13 on the wind box and side surfaces 2a of the receptacles. The strips 14 may be of metal rope or other rope and may comprise asbestos or the like and may be selflubricating; or a rope or rod may be sheathed. for example with replaceable washers. One end of the strip may be secured round an extension 15<a> of the dead plate 15, and the other end may be held by a spring 17 or by a weight.
Patent GB-713519-A (GB)
Title: Construction of rigid slotted cylinder
IPC: F15B15/08
Filed: 1950-07-10
Abstract: 713,519. Cylinders. BROWN BROS., & CO., Ltd., and MITCHELL, C. C. Nov. 23, 1950 [July 10, 1950], No. 17161 / 50. Class 122(1) [Also in Group XXII] A slotted cylinder has an outer wall 3' disposed eccentrically to an inner wall 1 and connected thereto by ribs 4. Chambers 6 formed between the ribs may be used for controlling the cylinder temperature. The slot 5 co-operates with a sealing strip 7. The cylinder may be cast with or without a metallic liner or it may be fabricated by welding. Alternatively it may be made by cutting slots in a cylindrical bar and forming the outer wall by inserted plates. Specification 640,622 is referred to.
Patent GB-1437777-A (GB)
Title: Thermometers
IPC: G01K1/08
Filed: 1975-04-25
Abstract: 1437777 Thermometers DR SIEBERT & KUHN 25 April 1975 [7 May 1974] 17270/75 Heading G1D A thermometer comprises a housing 13, a glass capillary tube 1, and two oppositely acting spring members 7, 8 which resiliently mount the tube 1 against axial shock, adjacent ends of the spring members engaging opposed surfaces of an abutment 6 to act directly or indirectly on the tube 1. The abutment 6 may be formed on a protective steel tube 4 which may completely surround the capillary tube 1 except for a window 2 therein, the capillary tube 1 being cemented to tube 4 only in the region of the abutment. The thermometer may be mounted, as shown, on an immersion pipe 15 or on a machine subject to vibrations e.g. diesel engines. The spring members may be conical springs, as shown, having preferably different spring characteristics and which act as guides for the capillary tube 1, Belleville springs, or spring washers.