baber/WOPTO huggingface dataset:
Patent GB-769615-A (GB)
Title: Improvements in or relating to a method of and apparatus for rolling metal tubes
IPC: B21B31/26
Filed: 1955-03-29
Abstract: 769,615. Rolling. BENGTSSON, F. G. March 29, 1955 [March 29, 1954], No. 9094/55. Class 83 (4). In a method of cold rolling tubes by taper-grooved rolls 62, Fig. 1, reciprocating over the work while it is intermittently fed step by step, the rolls are simultaneously rotated about the axis of the work. The rolls 62 are mounted in a carrier 32 which is coupled by a tie rod 33 to a reciprocating cross-head 27 sliding in guides 30, Fig. 2, and actuated through connecting rods 23 coupled to crankpins 21 on driven gears 14. The carrier 32 has arms 37 which are slidable on guides 38 in a frame 39 which is rotatable on bearings 42, 43 and driven from a shaft 35 through a chain 47 to rotate the carrier 32 about the axis of the work. Thrust bearings on the tie rod 33 permit relative rotation between the carrier 32 and the cross-head 27. The rolls 62 are also oscillated during the reciprocating movement by spur gears 76 on each roll shaft which engage toothed racks 77 attached to the rotary frame 39. Coolant may be supplied to the rolls from a conduit 59 connected to the cross-head 27, the coolant passing through the hollow tie-rod 33. Each roll 62 is mounted on a pin 64, Fig. 4, having conical portions 67, 68 at each end which are eccentric to the axes of the pin to permit adjustment of the roll after refacing. Nuts 72, 73 at each end clamp the pin within the carrier 32 and permit ready release of the roll by withdrawal of the pin. A pair of mandrels 53 for carrying the work is mounted on a transversely movable bridge 56 so that either mandrel may be brought into position for the rolling operation while the other is moved to one side and lifted by an hydraulic ram 57 to an inclined position at which it can be supplied with a new workpiece from a shoot 50. The bridge 56 is slidable along guides by hydraulic rams 97 to insert the mandrels 53 in the required position between the rolls. The work is fed intermittently over the mandrel 53 by a pair of reciprocating gripper devices 48, 49 placed in front of and behind the roll carrier so that the work is engaged by one or the other throughout the operation. Each device comprises clamping members 106, 107, Fig. 7, on a carrier 104 which is reciprocated horizontally by a cam-operated vertical push rod 115 carrying a roller 114a engaging in a slotted disc 111 which can be turned to any required angle by a hand wheel 114 to adjust the length of feed stroke. The lower fixed jaw 106 is adjustable by a screw 105 and the upper jaw 107 is normally actuated by a spring 109 to grip the work during the feeding stroke. During the return stroke the jaw 107 is released by cam-operated push rod 119 which lifts the arm 110 carrying the jaw 107.
Patent GB-181156-A (GB)
Title: Improvements in and relating to roller bearings
IPC: F16C33/36
Filed: 1921-03-24
Abstract: 181,156. Leon, K. O. March 24, 1921. Roller bearings. - The rollers are of such form that the moment of insertion about any straight line through the centre of a roller is the same, whereby the rollers are free to accommodate themselves to aligning movements of the shaft. The rollers may be solid, as shown in. Fig. 9, or they may be partlv or completely hollow as shown in Figs. 5, 6 and 7.
Patent GB-570074-A (GB)
Title: New resinous materials
IPC: C08L75/02
Filed: 1942-07-03
Abstract: Polymeric resinous materials are prepared by heating an N-N1-bis-(alkoxymethyl) urea with less than 5 carbon atoms in each alkoxy group with a tertiary alkylolamine containing two hydroxyl groups, each separated from the amino nitrogen by at least two carbon atoms, until at least one mol. of alcohol has been eliminated per mol. of N-N1-bis-(alkoxymethyl) urea used.  Preferably, N-N1-bis-(methoxymethyl) urea is reacted with stirring at 140-190 DEG C. with an aliphatic tertiary alkylolamine containing two hydroxyl groups, in equimolecular proportions until 1.6 mols. of alcohol have been eliminated.  The course of the reaction may be followed by measuring the amount of alcohol formed.  The alcohol may be removed as formed or alcohol may be left in the final product.  The molecular ratio of the urea derivative to the alkylolamine should not be lower than 0.7. p  Solvents, e.g. methanol, chloroform, benzene, dioxan, xylene, bis-(methoxyethyl) ether or dibutyl ether may be present in the reaction mixture.  The alcohol by-product may be removed as it is formed and this process may be aided by the passage of nitrogen or air over or through the mixture.  Suitable urea derivatives are N-N1-bis-(ethoxymethyl) urea; N - methoxymethyl - N1-ethoxymethyl urea; N - N1 - bis - (butoxymethyl) urea.  Suitable alkylolamines are N-methyl-bis-(b -hydroxyethyl) amine; N-hexyl-bis-(b -hydroxyethyl) amine; N-dodecyl-bis-(b -hydroxyethyl) amine; N - cyclohexyl - bis - (b  - hydroxyethyl) amine; N-furfuryl-bis-(b -hydroxyethyl) amine; N-methyl-bis-(2-hydroxypropyl) amine.  Alkylolamines with a high C content give products soluble in hydrocarbons and suitable for water-resistant materials.  A low molecular weight alkylolamine yields water-soluble, acid-accepting products.  More than one substituted urea and more than one alkylolamine may be used together. The products are useful as perticides, as gas fume-fading inhibitors for certain cellulose acetate dyestuffs, as plasticizers and as film-forming compositions.  Examples describe the preparation of (1) a resin soluble in trichlorethylene, ethanol, or dilute hydrochloric or acetic acid from N-N1-bis-(methoxymethyl) urea and N-butyl-bis-(b -hydroxyethyl amine; (2) a resin soluble in dilute hydrochloric acid from N - N1 - bis - (methoxymethyl) urea and N - phenyl-bis-(b -hydroxyethyl) amine.
Patent GB-417596-A (GB)
Title: Improvements in apparatus for winding thread
IPC: B65H54/42
Filed: 1933-03-28
Abstract: 417,596. Winding thread. BRITISH CELANESE, Ltd., 22, Hanover Square, London, METCALFE, G., MENZER, S. J., and MONCRIEFF, R. W., c/o British Celanese, Ltd., Spondon, near Derby. March 28, 1933, No. 9311. [Class 120 (ii).] A bobbin-winding apparatus for thread &c. comprises a bobbin-supporting spindle 8, a driven member 7 mounted thereon and in driving connection with the periphery of a driving wheel 4 which is in frictional engagement with a shaft 5 on which it is mounted, the drive of the wheel 4 by the shaft 5 permitting the peripheral speed of the bobbin to adjust itself to the rate at which thread is delivered thereto. As shown, the shaft 5 is disposed parallel to the spindle 8 and the wheel 4 has a raised annular surface 14 engaging a similar surface 19 on a collar 17 fixed to the shaft 5 and the two surfaces are pressed together by a spring 20 disposed between an annular shoulder 16 on a bushing 15 projecting from the wheel 4 and a collar 21 adjustably secured longitudinally of the shaft by a set screw 22. Lubricant may be supplied to the shaft 5 and bushing 15 through a conduit 24 in the shaft and a bore 25 leading to a slot 26 in the shaft beneath the bushing ; the spring 20 and bushing 15 may be covered by a cylindrical dust shield 27 secured to the collar 21 by the set screw 22. The driven wheel 7 may be made of hard rubber, fibre composition or lignum vitae and the wheel 4 may be covered with leather, rubber or the like. The thread may be guided to the bobbin by an eye on a reciprocating rod or by the means described in Specification 416,087 and a number of winding units driven from a common shaft 5 may be employed in the processes described in Specification 371,461.
Patent GB-1193502-A (GB)
Title: Improvements relating to Control Systems for Fluid Fuel Fed Burners
Inventor: HODGKISS SAMUEL JOHN
IPC: F23N5/20
Filed: 1967-02-28
Abstract: 1,193,502. Controlling burners. EVERED & CO. Ltd. 12 Feb., 1968 [23 Feb., 1967], No. 9331/67. Heading F4T. A control system for a pilot and main burner including gas valves controlled by solenoids L1, L2, has a control switch manually operated by a button PB associated with contacts Al of a relay A/1 and with a two-way switch S1 so that depression of the button energizes pilot solenoid L1 via contacts A1 and movement of switch S1 produces a momentary discharge of a condenser C1 through transformer T1 to provide a spark to ignite the pilot burner, a circuit including a transformer T2, transistor TR1, relay B/3 and photoresistor R1 being also energized so that on establishment of flame at the pilot burner the relay B/3 is energized via the transistor to close contacts B1 to operate holding relay A/1 so that the button may be released, contacts B2 also being closed to energize solenoid L2 and contacts B3 are opened to disenergize the igniter. Flame failure causes relay A/1 to release contacts A1 and lock-nut the control. The circuit also includes a clock operated switch S3, a thermostat S4 and an overheat thermostat S5. In a modification a single relay performs the functions of relays A/1, B/3 and ignition is by means of a catalytic resistor coil.
Patent GB-1183623-A (GB)
Title: Improvements in or relating to Processes for the Production of Starches.
IPC: C08B30/12
Filed: 1967-02-28
Abstract: 1,183,623. Modified starch. NECKARCHEMIE DR. HEINRICH KOPP K.G. 28 Feb., 1967 [5 March, 1966], No. 9361/67. Heading C3U. Starch is modified by heating it in aqueous suspension with a surfactant to at least its swelling point but below gelatinization temperature to cause at least partial swelling and either during or after the swelling a water miscible organic solvent is added and the product starch is filtered and dried, optionally by spray drying. Specified surfactants are sodium - dodecylbenzene sulphonate, propylene glycol mono - stearate, cetyltrimethylammonium chloride, cetylpyridinium chloride, betaine, polyoxyethylene sorbitan monooleate and sorbitan monolaureate. Specified solvents are MeOH, EtOH, 1- and 2-propanol, 2-methyl-2-propanol, 1,4-butanediol, 1,4-pentadiol, acetone, 1,3- and 1,4-dioxane and pyridine. During or after swelling the starch may be mixed with a dye or medicament. The filtered starch may be mixed with powdered polyvinylpyrrolidone or silicic acid prior to drying. Potato, rice and maize starches are exemplified.
Patent GB-599552-A (GB)
Title: A rotary free-oscillation machine
IPC: F02B53/00
Filed: 1945-04-16
Abstract: 599,552. Rotary engines and compressors. SOC. CIVILE D'ETUDES THERMO-MECANIQUES. April 16, 1945, No. 9501. Convention date, Feb. 16, 1943. [Class 110 (ii)] In a rotary or semi-rotary engine of the freepiston type, a portion la acts as a high-pressure working cylinder, portions 1f, 1b as lowpressure cylinders, and portions 1c, 1e as firststage compressors and 1d as a second-stage compressor, or the portions 1c, 1e, led may be pumping cylinders. Vanes 7a, on a rotor 6, move relatively to the casing which may also rotate, or be stationary. Inlet and exhaust ports in each abutment 5a &c. are controlled by slide valves 21 actuated by push-rods 29 driven by cam-shafts 26 from the main' shaft 11. Other types of valves may be used. 'A vane may divide up one cylinder into two portions different' from the portions which a vane, in another cylinder, divides up that cylinder. The engine cylinders may be doubleacting. A number of engine-driven compressors may operate in series. Specifications 596,243 and 599,211 are referred to.
Patent GB-1006578-A (GB)
Title: Improvements in and relating to sulfonated fluorene compounds
IPC: C07C309/25
Filed: 1962-03-13
Abstract: Monosulphonic- and disulphonic acids of 9,9-di-(carboxyalkyl)-fluorenes, of the general formula <FORM:1006578/C2/1> (wherein Y is a -SO3H group, X is a hydrogen atom or a -SO3H group, R is a hydrogen atom or a C1 to C10 alkyl group, and n is an integer having a value from 1 to 10, are produced by reacting the appropriate di-(carboxyalkyl)fluorene with concentrated sulphuric acid. Monosulphonation predominates at temperatures from 0 DEG  C. up to 65 DEG  C.  The disulphonation reaction is preferably carried out from 90 DEG  to 130 DEG  C.  A sulphonation catalyst, such as mercury, mercuric sulphate or vanadium pentoxide, is used. The sulphonated products may be converted into alkali metal salts, or ammonium or quaternary ammonium salts. The following compounds are claimed per se: 9,9 - di - (21 - carboxyethyl) - and 9,9 - di-(21 - carbomethoxyethyl) - fluorene - 2 - sulphonic acids, the bis-(2-methylpentyl)ester of potassium 9,9 - di - (21 - carboxyethyl) - fluorene - 2 - sulphonate, 9,91 - di - (21 - carboxyethyl)-and (21-carbomethoxyethyl)-fluorene-2,7-disulphonic acids, and the sodium and di-sodium salts of 9-(21-carbomethoxyethyl)-9-(51 - carbomethoxypentyl) - fluoren - 2 - sulphonic acid and -2,7-disulphonic acid, respectively. The invention also includes compounds formed by the reaction of the sulphonated products with the beryllium, magnesium, calcium, zinc, strontium, barium and tin salts of monocarboxylic acids.  These compounds contain the group -SO3MZ, wherein M is one of the metals specified above and Z is a carboxylate group.  2-Acetoxybariumsulpho-9,9 - di - (21 - carboxyethyl) - fluorene and 2,7 - di - (acetoxystannoussulpho) - 9,9 - di-(21 - carbomethoxyethyl) - fluorene are claimed per se.  Specification 1,006,579 is referred to.
Patent GB-821954-A (GB)
Title: Bearings
Inventor: NEALE MICHAEL JOHN
IPC: F16C33/20
Filed: 1956-03-27
Abstract: 821,954. Bearings. GLACIER METAL CO. Ltd. March 15, 1957 [March 27, 1956], No. 9602/56. Class 12 (1). [Also in Group XXV] A bearing comprising a metal structure with P.T.F.E. forming at least a part of its bearing surface is resiliently mounted so as to be yieldingly urged towards the opposing bearing surface. A motor vehicle steering column 11 is mounted in P.T.F.E. impregnated bearing segments 13, 14, 15 which are bonded to the inner surface of a rubber bush 12 carried in a housing 16. In the embodiment shown in Fig. 4, a half bearing 17 with a P.T.F.E. impregnated surface is formed with outward protrusions 18, 19 by which the bearing is suspended from a mounting-block 21. The invention is also applied to a ball and socket joint.
Patent GB-636481-A (GB)
Title: Improvements in reflex photographic cameras
IPC: G03B19/12
Filed: 1947-04-11
Abstract: 636,481. Reflex photographic cameras. PIGNONS SOC. ANON. April 11, 1947, No. 9657. Convention date, July 16, 1946. [Class 98 (i)] The camera is characterized by the reflex viewing mirror being held in its viewing position by resilient means against stops so that when the camera objective is telescoped at least partially into the camera body a portion of the objective support engages the mirror support and moves it away from the stops towards the rear of the camera against the action of the resilient means. The mirror may be guided in its passage from the viewing to the taking position by three concentric guides and at the viewing and taking ends of these guides two adjacent guides may be extended in concentric arcs centred on the end of the third guide so that the mirror may pivot about the end of this guide. As shown, the mirror support 3, on which a plane mirror is disposed, is carried by pins located in three concentric guides I, II, III, centred at 4, on each of the side walls of the camera body 1, and is raised from the viewing to the exposure position by two cranked arms b having longitudinal slots in which engage the pins arranged so that their axes pass through the centre of gravity of the mirror and its support and pass through the guides II, the arms b being caused to pivot about their upper ends by a pinion 7 which is carried on a common shaft 6 and is itself driven by a pinion 8 operated by movement against a spring 13 of a rack 9 carried by the member 11. A focal plane shutter may be released after raising the mirror to make an exposure. The guides II, III are extended from their lower ends as concentric arcs centred on the lower end of the guide I. The mirror support is normally urged against a pivoted stop lever 14 by the spring 13, the lever 14 being held against a rotatable eccentric stop 16 by a stronger spring 17. On telescoping the objective 2 into the body 1, the objective mount engages the mirror support and over.- comes the spring 17 so that the mirror support pivots about the end 5 of the guide I into the dotted line position 3<SP>1</SP>. Two of the adjacent guides II, III or I, II may also be extended as concentric arcs centred on the upper end of the third guide I or III so that the mirror makes a further pivotal movement about the end of said third guide when it is moved clear of the objective axis for making the exposure.
Patent GB-361246-A (GB)
IPC: B64D27/06
Filed: 1931-03-31
Abstract: 361,246. Mounting aeroplane engines and propellers. GRULICH, K., 152, Kurf³rstendamm, Halensee, Berlin. March 31, 1931, No. 9768. Convention date, Oct. 27, 1930. [Class 4.] Aeroplanes with pusher airscrews f have engines b, with underhung cylinders or other means for obtaining the highest possible position of the driving shaft, mounted in the upper surface of the wing and connected by shafts e to the airscrews which are located as high above the trailing edge of the wing as possible. As shown the engines b are mounted in chambers b in front of a gangway c through the wing. Alternatively the engines may be mounted in chambers behind the gangway but in this case certain engines may be mounted as shown in order to prevent the machine from being tail heavy. Couplings g, h both radially and axially flexible are inserted at the ends of the shafts e and one of these is made releasable to enable the propeller to rotate freely should the engine stop. The projecting parts are covered with streamlined casings i which increase the speed of the airflow over the rear upper surface of the wing. Other compartments in the wing accommodate passengers, fuel, and freight.
Patent GB-954452-A (GB)
Title: Improvements in or relating to crimping tools
Inventor: THOM ROLAND BEATY
IPC: H01R43/042
Filed: 1962-03-14
Abstract: 954,452. Jointing by stamping. BRITISH INSULATED CALLENDERS' CABLES Ltd. March 12, 1963 [March 14, 1962], No. 9819/62. Heading B3Q. A crimping tool for crimping the rim of a side wall of a sealing pot 5, fitted over the end of an electric cable 6 and filled with sealing compound, to a closure member fitted to the open end of the pot and through which the ends of the conductors protrude, comprises a pair of axially aligned yokes 1, 2 connected by limbs 3 to form a hollow frame, the yoke 2 having a screwed bore to receive a tubular screw 9 and the yoke 1 having a stepped recess for receiving and supporting the pot 5 and a centrally apertured plate 11 slidably engageable along the limbs on the leading face of which are fitted a number of crimping teeth 13 which by screwing up the screw 9 are forced into engagement with the rim to effect the crimping thereof to the closure member. The yokes and limbs are of brass, the screw of manganese-molybdenum or nickel chrome steel and the plate, of hardened steel strip. The pointed teeth have two inclined flat sides 14 and a third of a conical form 15 and are preferably riveted to the plate 11 with the corners formed by the two flat sides positioned nearest to the axis of the plate.
Patent GB-1275885-A (GB)
Title: Antacid compositions
IPC: A61K33/40
Filed: 1971-04-19
Abstract: 1275885 Preservative for antacid compositions WARNER LAMBERT CO 19 April 1971 [6 May 1970] 9905/71 Heading A5B Aqueous antacid compositions comprise water, and aluminium hydroxide and/or magnesium trisilicate and/or magnesium hydroxide together with 0.005% to 0.100% by weight of chlorine dioxide as preservative. The compositions may additionally contain a vegetable gum and/or a flavouring agent.
Patent GB-1137233-A (GB)
Title: A process and apparatus for treating, for example drying, permeable materials
IPC: D06B19/00
Filed: 1967-03-02
Abstract: 1,137,233. Sieve drum driers. VEPA A.G. 2 March, 1967 [2 March, 1966], No. 9918/67. Heading F4G. [Also in Division D1] In a sieve drum drier having a pair of sieve drums, the internal covering plates within the drums where the web to be dried does not cover the drum, and the suction fans at the end face of each drum combine to produce an upwardly directed stream which is returned to one drum and a downwardly directed stream which is returned to the other, the streams each having located therein a heat-exchanger which is linked with a temperature feeler located in that air stream.
Patent GB-567046-A (GB)
Title: Masks for use in reproducing colour transparencies and methods of making and using them
IPC: G03C7/18
Filed: 1943-06-21
Abstract: 567,046. Colour photography. KODAK, Ltd. (Eastman Kodak Co., Evans, R. M., and Miller, N. D.). June 21, 1943, No. 9939. Drawings to Specification. [Class 98 (ii)] A colour-correction mask for use in the lenscopying of a colour transparency compensates not only for undesired light absorption of the colouring matters used in the transparency, or in the copy, or in both, but also for the .uneven illumination of the field when making the transparency, or the copy, or both, due to the lens defect which causes a falling-off in the illumination from the centre to the periphery of the field. The mask is made by exposing a light-sensitive film or plate to light passed through a lens system showing said unevenness, producing from the developed image a positive, exposing another light-sensitive film or plate to light passed through this positive and the colour transparency in register, and processing the layer to yield a negative of lower gamma. Light exhibiting uneven field must be avoided in exposures other than that first mentioned. The said positive may be made by first making a negative on a high-contrast sensitive layer, developing the layer to gamma 3, printing from it a positive on a medium-contrast sensitive layer, and developing it to gamma 1. The mask is printed by contact from this positive, in register with the colour transparency, on to a sensitive layer which may be that described in Specification 555,383, using light which may be white, but preferably consists of wavelengths longer than blue, e.g. yellow, green, red, or green and red occupying a narrow waveband, as described in Specification 551,614. The print may be processed to neutral grey (e.g. a silver image of gamma 0.45), or to a colour (e.g. yellow) by colour development as described in Specifications 553,196, 553,229 and 553,230. The process of making the mask is the same, whether or not the original colour transparency exhibits uneven density due to defect in the taking lens, the difference in correction in the two cases being achieved by adjusting the gammas to which the fieldevening positive and the mask are developed. In printing the mask, instead of superimposing the field-evening positive and colour transparency in register, they may be printed successively in either order upon the sensitive layer. As the field-evening correction required varies according to the angular field of the copying projector, separate masks must be made for the principal magnifications of said projector. The mask is used in combination with the colour transparency from which it was made to print copies by projection, preferably in the same projector as was used in making the fieldevefiing positive, which copies may be multicolour made on multilayer material, or colourseparation records, which may be processed as by reversal colour development. Specifications 512,608 and 537,864 also are referred'to.