baber/WOPTO huggingface dataset:
Patent GB-449112-A (GB)
Title: Improvements in or relating to the preliminary drying of the form cylinder in printing machines, or of the coating cylinder in coating machines
IPC: B41F9/00
Filed: 1935-04-17
Abstract: The forme or coating cylinder of a printing or coating machine after being coated with ink or other liquid, excess of which is removed by a doctor or scraper, is subjected to controlled evaporation which effects a preliminary <PICT:0449112/III/1> drying before the impression point is reached, which extends over the whole region of the cylinder located between the scraper and the impression point, the volatile constituents thus evaporated being removed directly after their liberation in such a way that they are prevented from escaping freely into the atmosphere of the workshop or the like where the machine is situated.  The drying is effected by a controlled current of air which is passed through a casing 10 extending from the scraper 6 to a point immediately adjacent the impression point and by so removing the volatile constituents of the liquid, ink or coating fluids containing spirit, benzene, xylol or the like may be employed. The cylinder 1 of a printing-machine is almost surrounded by a closed ink reservoir 4 into the ink of which the cylinder dips, fresh ink being supplied by sprays 8 which direct the ink against the cylinder. An outlet pipe 9 is provided and the ink level is maintained constant by any suitable means.  The side of the reservoir is closed by a scraper 6 attached to the drying chamber 10 and the chamber 10 may be formed with apertures 11 through which air may be drawn.  The air is directed by guide surfaces 12 over the cylinder 1 and one or more hinged member 13 with inspection windows 15 may be provided.  The air and solvent vapours are discharged through an aperture 14 and the solvent recovered.  In an alternative form, cold or heated compressed air is passed through the drying chamber and withdrawn by suction and a container for charcoal or other absorbent substance may be situated in the suction outlet to remove the solvent vapours.  The printed surface may be subsequently treated with a current of air and may also be heated.
Patent GB-615310-A (GB)
Title: Method of converting secondary amines to nitramines
Filed: 1945-05-11
Abstract: Secondary nitramines are prepared by treating a secondary amine or nitrate thereof (including morpholine nitrate and piperidine nitrate) with nitric acid in the presence of a catalytic compound which in water yields negative ions containing chlorine.  Preferably, the reaction is carried out in the presence of the anhydride of a fatty acid having not more than four carbon atoms, e.g. acetic anhydride. As catalysts, there may be used hypochlorites, chlorates and chlorides such as those of sodium, potassium, rubidium, caesium, barium, strontium, magnesium, zinc, boron, silicon, tin, lead, sulphur, phosphorus, aluminium, iron, nickel cobalt, chromium, and vanadium, ammonium chloride and amine hydrochlorides and fatty acid chlorides such as acetyl chloride. It is convenient but not necessary to isolate the secondary amine nitrate.  In examples: (1) three procedures are used to prepare dimethyl, diethyl and di-n-butyl-nitramine in which (a) the amine nitrate is added to acetic anhydride, (b) the secondary amine and nitric acid are added at proportional rates to the acetic anhydride and (c) the amine is neutralized with acetic acid, and with nitric acid is run into acetic anhydride; (2) morpholine nitrate and anhydrous zinc chloride are added to acetic anhydride in nitric acid, or morpholine in acetic acid, to which is added nitric acid, is added to acetic anhydride containing zinc chloride, to produce nitromorpholine; (3) bis-nitroxyethylnitramine is obtained by adding nitric acid and zinc chloride in acetic anhydride to dinitroxydiethylamine nitrate prepared by nitrating diethanolamine; (4) bis-nitroxyethylnitramine is obtained by reacting together diethanolamine, nitric acid and acetic anhydride; (5) bis-nitroxyethylnitramine is obtained, passing hydrochloric acid gas into diethanolamine to which has been added nitric acid; (6) N-nitropiperidine is obtained from the corresponding nitrate by treatment with acetic anhydride in the presence of a chloride catalyst.
Patent GB-183581-A (GB)
Title: Improvements in dough-molding machines
IPC: A21C3/06
Filed: 1921-04-26
Abstract: 183,581. Lauterbur, F. X. April 26, 1921. Rolling - machines. - In a dough sheeting, rolling, or like machine, the sheeting-rolls are arranged in pairs in the fixed frame 1 and in a hinged part 3, and are driven by a motor &c. through the gearing as shown in Fig. 1 in which the pinion 77 drives by means of the pinions 69, 78 the two trains of gearing connecting the sets of rolls. The hinged frame 3 is provided with a spring-controlled buffer-stop 29 for the open position, and is secured in the closed position by adjustable hooks 25 and lugs 24 or other means. The upper rolls are preferably concave, and one roll of each pair may be flanged. A lump of dough is fed from the hopper 4 to the rolls and delivered in a sheet to the canvas or like conveyer 20 driven by chain and sprocket from the shaft 18 with a tensioning-pulley 95. The sheet is engaged on the conveyer by a curling-device 34 consisting of a weighted pivoted plate having a down-turned edge to engage the dough, and by a coiling-device 35 consisting of a pivoted serrated plate adjustably held by a screwed arm and fixed bracket 48 on the pressure board 42. The conveyer travels over a table, alternate sections of which are movable bv means of attached rails 53 and cams 56 and fixed by locking-bolts on the operating-lever engaging arcuate slots 61 on the frame. The undulations in the table produce a kneading action on the dough. The pressure board is adjusted by screws 85, 96 connected by a chain 98 and sprocket-wheels and operated by a hand-wheel 97.
Patent GB-1347088-A (GB)
Title: Continuous production of stereo-specific elastomers in a screw  extruder
IPC: C08F36/04
Filed: 1971-04-29
Abstract: 1347088 Conjugated diene polymerization in an extruder BAYER AG 29 April 1971 [29 April 1970] 12075/71 Heading C3P Conjugated dienes are polymerized in the substantial absence of polymerization solvents, in the presence of a Zeigler-Natta catalyst, and in a double- or multiple-shaft self-cleaning screw extruder at - 20‹ to + 150‹ C. The monomer/ catalyst mixture may be pre-formed in an initial reactor prior to feeding to the extruder. The catalyst ingredients may be supplied in the form of solutions in the monomer. Plasticizing oils, polymerization inhibitors and stabilizers may be added to the product while still in the extruder. A diagrammatic representation of a suitable apparatus is provided. In examples, butadiene or isoprene are polymerized in the presence of a (C 2 H 5 ) 3 Al-TiCl 4  catalyst modified with I 2  (in butadiene monomer feed, forming diiodobutene in situ) or di-n-butyl ether. The products are treated with triethanolamine/2,6- di - t - butyl - p - cresol or 2,2<SP>1</SP>- methylene - bis- (4-methyl-6-t-butyl phenol).
Patent GB-255825-A (GB)
Title: Improvements in or relating to visible indicating means for automatic or semi-automatic telephone plants
IPC: H04Q1/24
Filed: 1926-05-10
Abstract: 255,825. Automatische Fernsprech- Anlagen-Bau-Ges. July 27, 1925, [Convention date]. Selective signalling apparatus.-In an automatic or semi-automatic telephone system, tens and units lamps Z, E are controlled over auxiliary wipers b, c and terminal banks wired as in Fig. 2 of a Strowger-type connector, a tens lamp being lit when the switch takes its first rotary step, which is automatic, and a units lamp when the switch has completed its rotary movement in response to the final digit. The arrangement is applicable for indicating the setting of the switch to the switch-controlling operator or to a supervisory operator. Relay C energizes and locks itself when the switch is taken into use. The first digit is repeated by relay A to the vertical magnet H, and relay B then relapses to energize the rotary magnet D, which gives a first rotary step and energizes relay P, which locks itself and transfers the magnet D to the control of relay A for the second digit. The connector is released by opening a contact x to unlock relay C and energize magnet M.
Patent GB-417343-A (GB)
Title: Improvements in fuse mechanism for projectiles
IPC: F42C9/02
Filed: 1933-04-26
Abstract: 417,343. Projectile fuzes. SCHWOB FRERES ET CIE SOC. ANON., La-Chaux-de- Fonds, Switzerland. April 26, 1933, No. 12212. Convention date, April 30, 1932. [Class 9 (i).] In clockwork fuzes driven by two oppositely moving racks, as described in Specification 265,588, [Class 9 (i)], the racks 13, 14 are made cylindrical to facilitate their machining, and are in direct engagement with a pinion on a central shaft 2 integral with the rotary disc 12 which releases the firing-hammer of the fuze. The racks have flat parts 16 guided by rollers 18. The mechanism is locked by an inertia bolt 19 until the shot is fired.
Patent GB-1070200-A (GB)
Title: Electrical filter system
IPC: H03H7/01
Filed: 1966-03-21
Abstract: 1,070,200. Correlation circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 21, 1966 [April 9, 1965], No. 12254/66. Heading G1U.  A correlation filter system having a frequency transfer function determined by the time function of a periodic control signal 1 comprises: means 3 for multiplying the control signal 1 with the signal to be filtered 2; means 6 for delaying successive portions of the product signal; means 8 for frequency shifting the delayed signals by amounts proportional to the delay experienced; means 5 for combining the delayed signals; and a filter 11 for extracting an output signal from the combined signal. If, the periodic time of the control signal is T, the maximum frequency component present in it is K/T, and the output frequency is restricted to the frequency band K/T to K+1/T, it is shown that if the control signal is a function of time u(t) then the transfer function G(f) is a function of frequency given by where ¹(fT<SP>2</SP>)is the Hilbert transform of u(fT<SP>2</SP>). In the embodiment of Fig. 1, the multiplier 3 produces sum and difference frequency components and the frequency shifter 8 increases the frequency so that only the difference components are used. In a modification, Fig. (not shown), a multiplier producing only the sum frequencies is employed, and the frequency shifter is arranged to decrease the frequency. In a further modification, Fig. 3 (not shown), the control signal is formed by amplitude modulating the required envelope signal on to a carrier.
Patent GB-486480-A (GB)
Title: Improvements in and relating to presses for punching and drawing articles from sheetmetal
IPC: B30B1/06
Filed: 1937-04-29
Abstract: 486,480. Presses. RHODES, C. J. April 29, 1937, No. 12302. [Class 83 (iv)] In presses for punching and drawing sheet metal of the type having overhanging framing in which the presshead slides, the crank shaft 2 is journalled below the work table 7 and transmits motion to the head through a connecting- rod 16 and a pair of parallel links 13 pivoted at 14. The stress set up in press operation takes thereby the form of a compressive stress on the part of the framing between the work table and the overhanging framing. An adjustable stay 4 braces the upper part la of the framing to the motor platform 3. A vertically reciprocating head 9 is ball jointed at 10 to a link 11 pivoted at 12 to the links 13. The connecting- rod 16 has the form shown in Fig. 4 having a banjo frame centre 20a rendering the passage through the machine unobstructed and enabling it to be used for rearward delivery. An ejector lever 22 is pivoted at 23 and passes through a slot 21 which is sufficiently long for the lever not to be operated upon by the movement of the connecting-rod. The lever 22 also passes through a slot in the press head and is capable o f engaging a screwed bolt 27 attached to a cross stay 26a.
Patent GB-305880-A (GB)
Title: Improvements relating to the fettling of scribbling and carding engine-cylinders
IPC: D01G15/76
Filed: 1928-09-19
Abstract: 305,880. Ellis, N. C., and Broadhead, A. Sept. 19, 1928. Carding-engines.-In an arrangement for cleaning or fettling a set of carding-engine cylinders comprising a set of cleaning &c. rollers connected together so as to be moved simultaneously into or out of engagement with the adjacent cylinders, the cleaning &c. rollers are held out of engagement by locking-means and are adapted to be moved into engagement by a weight or other means when the locking-means is released. Stops are provided to control the depth of engagement of the cleaning &c. rollers with the cylinders. The cleaning &c. rollers a, Fig. 1 are mounted in flanged blocks k slidable in guides l at the upper ends of brackets f. The brackets are vertically adjustable in blocks g secured to the frame. The movement of the roller a towards the cylinder is controlled by an adjustable set screw. The, various blocks k are connected by plates p, pivoted on pins o. and rods r and are locked against movement by a lever s at one end, and a pawl y engaging notches a<2> in a bracket b<2>. At the other end the last plate p has attached to it a cord v and hanging weight u. The forward roller a is driven by a cord c<2> from a countershaft and the other rollers a are driven therefrom by a common cord. The rollers a Fig. 6, are provided with rows of headed pins b secured in dove-tail shaped laths c, fitting in hard wood or metal blocks d of segmental shape, secured to a central shaft.
Patent GB-1148707-A (GB)
Title: Peripheral-flow fluid pumps
IPC: F02M37/08
Filed: 1968-03-14
Abstract: 1,148,707. Pipe Joints. GENERAL MOTORS CORP. 14 March, 1968 [12 June, 1967], No. 12342/68. Heading F2G. [Also in Divisions F1 and H2] A fuel pipe 202 extending through an access opening 210 in the top of a fuel tank 14 to a fuel pump 10 carries a mounting flange 208 which is pressed against a resilient sealing ring 220 by means of an annular cam 216 having locking ridges 218 which ride under three fingers 214 which extend inwardly from a ring 212 fixed to the tank top. Depressions 222 in the fingers 214 coact with corresponding parts of the ridges 218 to provide a releasable lock.
Patent GB-186645-A (GB)
Title: Improvements in and relating to brake mechanism
IPC: B61H15/00
Filed: 1921-04-29
Abstract: 186,645. Wilson, W. G. April 29, 1921. Compensating for wear; band or coil; blocks acting on drums.-In a device for taking up wear automatically, the adjusting element and the device which actuates and locks it move together when the brakes are applied through a definite distance after which relative movement takes place to unlock the adjusting elememt, and if the relative movement exceeds a predetermined amount owing to wear of the brakes, the actuating- device moves the adjusting- element to take up the slack on the brakes being released. Fig. 1 shows the application to a brake comprising blocks 17 mounted on levers 19, 20 pivoted at 21, and actuated by a pull-rod 29 through a toggle system 21, 22. The slack-adjusting element consists of a ratchet-wheel 26 formed in one with a nut 25 which works on the threaded end of the rod 22, and a loose fitting abutment member 27 between the nut 25 and the toggle member 24. The ratchet is actuated when necessary, and locked when the brakes are off by a member 32, Fig. 2, having an actuating tooth 34 and a locking tooth 33. The hooked end 35, 37 takes over a fixed pin 36, and a light spring 38 is provided. When the brakes are applied the ratchet-wheel 26 moves downwards, and the member 32 accompanies it until stopped bv the lug 35. Further move.- ment of the ratchet-wheel disengages it from the tooth 33 as shown in Fig. 2, and if the movement is excessive owing to wear of the blocks. the tooth 34 will engage behind a different tooth of the ratchet-wheel 26, and cause it to rotate when the parts return to their normal position on release of the brakes. Fig. 3 shows the application to a band brake inwhich the hand 42 is anchored at one end 44 to a fixed member 45 and is secured at the other to a rod 48 forming part of a toggle system 48, 53, 45. The brake is applied by a push-rod 61 engaging a square washer 49 on the rod 48. The slack-adjusting ratchetwheel 51 is formed with a nut threaded on the end of the rod 48. The ratchet is actuated when necessary, and locked when the brakes are off by a plate 56 which is pivoted at 57 upon the toggle member 53. This plate 56 has spring tongues 62, 63, a tooth 60, Fig. 4, engaging the ratchet 51. and a projection adapted to contact with one of the sides of the washer 49 when the brakes are taken off. The movement o the plate is limited by a fixed bar 59 passing through a recess 58. When the brakes are applied rod 48, ratchet 51, and plate 56 are pushed to the right. The plate is stopped by bar 59 and relative movement then takes place. If this movement is excessive owing to wear, the ratchet snaps over tooth 60 and will be rotated to take up the slack when the parts return to their normal position on release of the brakes.
Patent GB-290438-A (GB)
Title: Improvements in spraying apparatus
IPC: B05B7/24
Filed: 1927-05-09
Abstract: 290,438. Burdick, C. L. May 9, 1927. Air-pressure sprayers.- In spraying apparatus for delivery a fine pencil of liquid provided with air and liquid valves operated by a single lever capable of two separate movements, means are provided to ensure that the air valve shall open before and close after the opening and closing of the liquid valve. The air valve 50 and liquid valve 12 of a colour sprayer are controlled by mechanism slidably mounted within a cavity 9 in the sprayer body. A cylindrical casing 20, formed as an extension of a block 23 having a square hole to receive a square abutment member 14 on the needle valve 12 is formed with a cam-shaped member 25 comprising a bent strip or lug, and is formed with slots 21, 22 at the top and bottom. A finger piece 26 is secured to slotted arms 27 which are pivoted at 28 to the air valve rod 29 which is slidable in the slot 22. A pivot pin 31 slides within the slots of the arms 27 and supports a plate 33 bearing at its lower end on a projection 41. The plate 33 bears against the rounded end of the member 14 and is slotted to allow the cam strip 25 to pass therethrough. The arms 27 support a pin 25 carrying a roller 36 lying in front of the cam 25 and thus preventing the arms 27 from turning until the pin 30 is depressed and the air valve 50 thus opened. When the air valve is fully opened the pin 31 is at the top of the slots and the roller 36 below the cam when the arms 27 and with them the plate 33 may be turned thus opening the needle valve 12. Owing to the rounded form of the end 14a of the member 14 the contact between the plate 33 and block 14 gradually shifts so that for a given displacement of the plate 33, the needle valve will be opened a progressively increasing amount. In order that the apparatus may be set to maintain the liquid delivery at a fixed small value for a prolonged time, or alternatively to provide for a minimum delivery when the air valvo is opened, the block 23 carries a fork 52 engaging a groove 54 in the head of a regulating screw by which the member 20 is slid in the body 1 so that the arms 27 are rocked to open the valve 22 independently of the position of the valve 50.
Patent GB-118109-A (GB)
Title: Improvements in or relating to Apparatus for Manufacturing Hollow Ware.
Inventor: SNYDER GEORGE COCHRAN
IPC: B27D1/08
Filed: 1918-07-30
Abstract: 118,109. Snyder, G. C. July 23, 1917, [Convention date]. Machines and apparatus for making tubs, pails, &c. In apparatus for making barrels, tubs, pails, &c., two strips of material are simultaneously wound in spiral form so as to produce two hollow elements tapered in opposite directions. In making a barrel, a strip of material is drawn from a roll mounted on a rod 50, Figs. 1 and 2, and, after it has been slit longitudinally by cutters 56, 67, the two portions are wound on the adjacent ends of a pair of mandrels 23 driven from a shaft 29, the ends of the mandrels abutting against each other during the commencement of the winding operation. When a few turns have been wound, the mandrels are gradually moved apart by screws 39 driven from the shaft 29, thus causing successive convolutions of the strips to overlap so as to produce two hollow tapered elements. When the wound portions have reached the desired length, the rotation of the screws 39 is stopped by disconnecting clutches 44, 45, and the cutters 56, 57 are moved out of action by levers 57, 66 operated by a sliding cam 82 moved by a lever 72, which is turned by a circular projection 70 on one of the mandrels 23. A few turns of unslit material are then wound round the centre ot the barrel. When the central portion of the barrel has reached the desired diameter, a roller 106 moves a stop 105, thus allowing a spring- pressed knife 100 to descend and sever the material transversely. Clutches 46, 47 are then thrown into gear to separate further the mandrels 23, so that the finished barrel body falls into a shoot 132. During winding, the outside of the barrel is engaged by spring-pressed wipers 125. Camactuated pins 87 mounted on the mandrels 23 are arranged to embed themselves in the strips of material so as to hold the first windings in their correct positions while the mandrels are being separated to form the tapered portions of the barrel. The shape of the barrels may be altered by varying the rate of separation of the mandrels. Adhesives &c. or a powder adapted to act as a binding-material when the barrel is subsequently heated are spread upon the material by jets 131. Coating-material mav be applied to the interior of the bairel by a pipe 98. Tubs and pails may be made in the same manner as barrels, except that the cutters 56, 67 are retained in action throughout the entire winding operation. In a simpler form of machine adapted for making barrel-shaped containers, mandrels 135, Fig. 11, arc moved apart by arms 144 operated by a shaft 141 formed with right- and left-handed screw-threads. The arms 144 are thrown out of action when the container has attained the desired. length. The mandrels are moved further apart, to release the finished article, by hand-operated levers 149, 152.
Patent GB-661936-A (GB)
Title: Apparatus for the manufacture of pneumatic tyres
IPC: B29D30/28
Filed: 1949-05-10
Abstract: 661,936. Pneumatic tyres. DUNLOP RUBBER CO., Ltd., and SMITH, H. March 28, 1950 [May 10, 1949], No. 72412/49. Class 144 (i). Means for turning down the projecting edges of fabric plies against the end faces of a rotating tyre-building drum comprises a pair of frames on each of which is mounted a yeildable element so as to be movable up to the drum, the facing sides of the resilient elements being positioned axially inwards of the ends of the drum so as to be rotated thereby and apply pressure to edge portions of the fabric. As shown, the resilient elements are pneumatic tubes or tyres 3, inftated at low-pressure, carried by frames 2 which are secured between collars adjustable on a rod 4 having at one end an adjustable bearing 7 mounted on a pivot 5 attached to the fixed framing 6. At the end adjacent the frames 2, the rod 4 is provided with a handle 13, and at its other end with a counterweight 11. Each pneumatic element is fitted on a wheel 17 mounted on bearings 18 on an axle 20 secured to the arms 21 of the frames 2. The further ends of the frames, beyond the rod 4, are fitted with handles 35 by which the tubes 3 are rocked into and out of operative position against the drum].