baber/WOPTO huggingface dataset:
Patent GB-424039-A (GB)
Title: Driving mechanism for endless-belt conveyors
IPC: B65G23/00
Filed: 1934-04-26
Abstract: 424,039. Variable speed gearing. DURKOPP-WERKE AKT.-GES., 2, Nikolaus-Durkopp-strasse, Bielefeld, Germany. April 26, 1934, Nos. 12580 and 12581. Convention dates, April 26, 1933 and Aug. 2, 1933. [Class 80 (ii)] [See also Groups XXX, XXXV, and XXXVII] The speed of a conveyer belt is regulated in accordance with the established variations in the rate of working of the operatives using it. In one construction the regulating means comprises a cam 20, Fig. 1, which rotates once during one working period and is shaped to correspond to the values of such variations in performance as have been determined by experience. The cam 20 acts on a member 23 which is pivoted at 22 and carries a slide 18 connected to a friction wheel 5 interposed in the gearing between the motor 1 and the drum 16. As the member 23 is moved, the gear 5 is moved over the face of the companion gear 6, and a change of speed results. The slide also may be shifted by actuating a hand-wheel 17. In a further construction a similar cam wheel 35, Fig. 5, having notches 36 in its periphery is rotated at certain determined intervals and the lever 37 moved so that a projection 38 thereon is in engagement with one of the notches. This movement of the lever is transmitted through the toothed wheel 39 mounted on it to a rack 40 secured to the motor 41 which is movable in a guide 42. The movement of the motor displaces the friction disc 44 across the disc 45, and varies the speed of the belt. This construction may be modified by replacing the wheel 35 by a notched time scale over which the lever is moved at the times marked thereon. The Specification as open to inspection under Sect. 91 comprises also two further modifications in one of which the time scale is replaced by a uniformly divided scale and the lever moved by an attendant, and in the other of which the ratio of the gearing is altered by the action of laying down a tool used by one of the operatives. This subject-matter does not appear in the Specification as accepted.
Patent GB-892755-A (GB)
Title: Process for the manufacture of methionine
IPC: B01J39/04
Filed: 1960-04-08
Abstract: In a process for preparing methionine, methylthiopropionic aldehyde is reacted with ammonia and hydrocyanic acid in a dilute alcoholic solution containing not more than 5% by weight of methylthiopropionic aldehyde, the reaction mixture is freed from excess ammonia and hydrocyanic acid by evaporation and concentrated in a distillation column (in which the escaping vapours of alcohol are drawn off by a pump, compressed and used for the indirect heating of the sump portion of the distillation column and, after having been liquefied, are partly pumped to the head of the distillation column) and after removal of the solvent from the solution of the reaction mixture collected in the sump of the column the reaction product is converted into methionine by hydrolysis.  Specification 670,774 and U.S.A. Specifications 2,485,236, 2,520,312, 2,543,768, 2,557,013, 2,564,105, 2,732,400 and Swiss Specification 257,403 are referred to.ALSO:In a process for preparing methionine, methylthiopropionic aldehyde is reacted with ammonia and hydrocyanic acid in a dilute alcoholic solution containing not more than 5% by weight of methylthiopropionic aldehyde, the reaction mixture is freed from excess ammonia and hydrocyanic acid by evaporation, and concentrated in a distillation column (in which the escaping vapours of alcohol are drawn off by a pump, compressed and used for the indirect heating of the sump portion of the distillation column, and having been liquified, are partly pumped to the head of the distillation column) and after removal of the solvent from the solution of the reaction mixture collected in the sump of the column, the reaction mixture is converted into methionine by hydrolysis preferably by passing the nitrile over a strongly acidic ion-exchanger, and eluting with ammonia.  Specification p  670,774, Swiss Specification 257,403 and U.S.A. Specifications 2,485,236, 2,520,312, 2,543,768, 2,557,013, 2,564,105 and 2,732,400 are referred to.
Patent GB-353085-A (GB)
Title: Improved printing apparatus for preventing alteration of cheques or the like
IPC: B41K3/38
Filed: 1930-04-24
Abstract: 353,085. Cheques &c. CONALBI, P., 56, Via Archimede, Milan, Italy. April 24, 1930, No. 12656. [Class 16.] Printing-apparatus for preventing alteration in the figures or writing on cheques &c. comprises a press having ridged dieplates,which are adapted to impress a series of slits in the paper, one of the die-plates being left plain at parts, in order to form lettering without the use of ink. The lower die-plate 3, Fig. 3, is secured to the base 1 of the press, and the upper die-plate 5 is secured to a rod 4, sliding in a stationary member 14, and operated by a hand-lever against the pressure of a spring 18. The die-plates have sharp-edged ridges 17, Fig. 5, adapted to perforate the paper, the ridges of the upper die-plate being removed at the parts corresponding to the lettering. The die-plates are surrounded by sliding frames 7, 8, which are pressed towards each other by springs 19, 13, and serve to hold the paper in position, and also to disengage the paper from the die-plates when the hand-lever is released.
Patent GB-910769-A (GB)
Title: Device for overend unwinding of yarn packages
IPC: D01H1/42
Filed: 1959-04-14
Abstract: 910,769. Creels. DEERING MILLEKEN RESEARCH CORPORATION. April 14, 1959 (April 14, 1958], No. 12670/59. Class 120 (2). An enclosure for a yarn package of circular section to prevent snarling during unwinding comprises a plurality of filaments under tension and all at an annular skew angle to the axis of the enclosure and constituting a cage serving to constrict the yarn while the diameter of the package decreases, the filaments being engaged by a member which is angularly adjustable about the axis to adjust the angle of inclination of the filaments. The filaments are carried by plates 17, 25 in a frame composed of legs 15a connected by webs 15b, 15c ; they are secured in apertures in the upper plate and pass through apertures in the lower plate and terminate in weighting-rings 33. Secured to the lower plate 17 is a block 21 with a frustoconical part 21a. The package is inserted between adjacent filaments and slipped over the part 21a to be held by the ring 25 which is pressed upwardly by a spring 23 around the block 21 into engagement with the bottom of the core, an annulus of fur 27 preventing the thread from being trapped. The plate 17 and the filaments can be rotated to the desired angular position by a nut 35 so that the filaments form a constricting helix about the periphery of the package. The thread is withdrawn through an aperture 39 in the nut 35.
Patent GB-436970-A (GB)
Title: Improvements in or relating to bins or like cylindrical containers
IPC: B65D25/14
Filed: 1934-04-27
Abstract: 436,970. Bins &c. VENESTA, Ltd., Vintry House, Queen Street Place, Queen Street, and BARBER, H. J.,16, Allington Road, Hendon Central, both in London. April 27, 1934, No. 12755. [Class 66] A cylindrical bin &c. for the storage of coal is provided with a plywood lining a formed in two vertically abutting halves held in place by the rivets c securing the overlapping parts of the metal exterior b, preferably also in two halves. A bottom d and a removable top f, both of wood and supported by wooden fillets, are provided.
Patent GB-1032383-A (GB)
Title: Improvements in and relating to electronic arrangement for the automatic control of rail brakes
IPC: B61K7/12
Filed: 1964-03-26
Abstract: 1,032,383. Retarder control; vehicle speed determination. SAXBY. March 26, 1964 [March 27, 1963], No. 12806/64. Heading B7N. In an arrangement for releasing a retarder in a railway classification yard when the speed of a vehicle being retarded has been reduced to a desired value, the vehicle speed is determined by the time intervals between signals generated by a number of equi-spaced wheel detectors positioned adjacent the retarder track. The wheel detectors C are formed in groups 01, C2 &c., each of which is connected via a gate P1, P2 &c., and amplifier 4 to a bi-stable circuit 3 and a counter 6. The counter, the " return to zero " circuit 7 and decoder 9 act to control the gates P1, P2 &c., so that once the rear wheel of the vehicle enters the retarder only signals generated by this wheel are applied to the bi-stable circuit. This circuit, Fig. 5, opens when switched to one of its stable states a gate P10 which controls the passage of pulses from oscillator 13 and pulse former 14 to a counter 12 and when switched to its other state controls the passage of the pulses to a counter 12<SP>1</SP> via gate P10<SP>1</SP>. When the number of pulses counted in a switching sequence increases to a predetermined value, which is a function of the required release speed for the vehicle then the decoder, e.g. 31 associated with the counter energized during that sequence emits a signal which via a register 41 is applied to one input of a coincidence circuit 38. If, during the next sequence, the number of pulses counted in the other counter reaches the predetermined number then a signal is applied via register 41<SP>1</SP> to the second input to the coincidence circuit which then generates an opening signal for the retarder. Ensuring coincidence between the counts in successive switching sequences prevents mis-operation due, e.g. to wheel bounce. Further apparatus described in Specification 1,032,382, is provided which modifies the predetermined number in accordance with the deceleration of the vehicle and the time lag in operation of the retarder to ensure the vehicle leaves the retarder at the required speed.
Patent GB-962018-A (GB)
Title: An air powered angle and bar guillotine
IPC: B23D21/00
Filed: 1962-04-03
Abstract: 962,018. Cutting girders and like profile bars. E. G. TELFER. April 3, 1962 [April 7, 1961], No. 12835/62. Heading B3W. An air-powered angle and bar guillotine comprises a frame 10, a lower longitudinal member 11 on the frame, a pair of spaced front forks 12, a pair of spaced rear forks 13, a blade arm 25 hinged at its rear end 26 between the rear forks and guided near its front end between the front forks, a lever arm 18 hinged at 19 near its front end, links 37 between the lever and blade arms, a trunnion mounted air cylinder 21 between the frame and the rear end 20 of the lever arm operable to move the lever arm about its pivot and thereby move the blade arm about its pivot, and guillotine blade retaining means on the blade arm and on the lower longitudinal member. The guillotine blade retaining means comprise an upper clamping plate 30 on the blade arm 25 to which both a bar cutter 31 and an angle cutter 32 are secured and a lower clamping plate 37 on which fixed bar and angle cutters 38 and 39 respectively are secured. The air cylinder is controlled by a valve 42 operated by a lever 44. A spring 45 effects the return stroke. A pair of adjustable steadies 47 are mounted on a bar 43. On the other side of the machine is an adjustable stop 54, which is secured to the lever arm 18 so that as the blade arm 25 moves downwardly the stop 54 is lifted by the lever arm 18 clear of the workpiece. A check-valve on the non- operative side of the piston of the cylinder 21 gives an air-cushioning effect. Bending tools may be mounted on extensions 57 and 58 on the blade arm and lower longitudinal member respectively.
Patent GB-115410-A (GB)
Title: Process and Apparatus for Increasing the Yield of Bread and Improving the Baking Qualities of Flour or Meal and Milling Products.
Inventor: SUTHERLAND EGBERT CORNELIS
IPC: A21D6/00
Filed: 1917-09-07
Abstract: 115,410. Sutherland, E. C. April 28, 1917, [Convention date]. Conditioning flour and meal; treating /lour and meal with gases; heating flour and meal.-To increase the moisture absorbing capacity of flour or milling products and to improve the baking quality without altering the other proportions of flour, the flour or milling products, such as groats, are subjected one or more times to a rapid cooling quickly followed by a, rapid heating; or the heating may be done first followed by the cooling. The minimum temperature is advantageously below zero, while the most favourable maximum temperatures lie between 40‹ and 60‹ C. The material may be treated and cooled indirectly by its passage through tubes alternately acting as heating and cooling tubes. Specification 4294/15 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states also that the heating and cooling are done directly, as by means of cold or hot gas or vapour, the constituents carried off should be recovered by means of a dust receiver and a condenser and returned to the milling material. If lumps are formed during the process they should be broken up. The process may be carried out in closed containers, the jackets of which are alternately cooled and heated. This subject-matter does not appear in the Specification as accepted.
Patent GB-749453-A (GB)
Title: Process for the manufacture of dyestuff intermediates
Inventor: COFFEY SAMUEL
IPC: C09B9/02
Filed: 1953-05-08
Abstract: Sulphuric esters of leuco derivatives of primary 1-aminoanthraquinones (i.e. 1-aminoanthraquinone and its derivatives carrying other amino, acylamino, alkyl, alkoxy or halogen substituents in the anthraquinone nucleus) are made by reacting a metal salt of the corresponding leuco compound or a complex compound comprising such a metal salt with a sulphating agent in presence of an amide derived from a secondary amine.  The metal salts or complexes may be made by reacting a metal, e.g. zinc, with the anthraquinone in presence of an amide derived from a secondary amine or an inert diluent at 0-50 DEG C., if desired in presence of a catalyst, e.g. potassium ethyl sulphate, sodium 2-naphthol -6- sulphate calcium naphthalene-2 : -6- disulphonate, sodium b -naphthalene sulphonate, ferric or magnesium chloride. In examples, (1) 1-aminoanthraquinone is reacted with zinc dust in dimethyformamide in presence of sodium b -naphthalene sulphonate, with or without methylamine, followed by sulphation with dimethylformamide sulphur trioxide; (2) 1-aminoanthraquinone or its 2-methyl derivative, or 1, 4-diamino-anthraquinone, or 1-amino -5- benzoylamino-anthraquinone are reacted with zinc dust in ethylene dichloride in presence of phenol or dimethylformamide and methyltriethylammonium chloride, followed by sulphation with dimethylformamide sulphur-trioxide or dimethylformamide chlorsulphonate.  Other anthraquinones specified are 1-amino -2- chloro anthraquinone and 1, 5-diamino-anthraquinone.  Specifications 274.156 [Class 2(iii)] and 633,481 are referred to.
Patent GB-883029-A (GB)
Title: Method of producing malleable cast iron
IPC: C21C1/08
Filed: 1958-04-23
Abstract: Malleable cast iron having a very fine lamellar or globular pearlitic texture is formed by fusing a charge of titanium-containing crude iron with a neutral or acidic slag in a cold-blast cupola furnace having an acidic lining to produce an iron of the following composition in per cent by weight.  .C.2,8 -3,1 .Si.0,4 -1,2 .Mu.0,18-1,2 .S.0,12-0,35 .P.up to 0,1 .Ti.0,01-0,5 .Cr.0 -0,5 .Fe.the remainder, casting the melt, and then annealing the casting. The initial cupola charge may also include recycled material and steel scrap. Annealing may be effected in a salt bath at a temperature between 760 DEG C. and 1100 DEG C., and may be carried out for short period, e.g. of 30-80 minutes in the salt bath at 950-1000 DEG C. and then in a furnace in vacuum or an inert atmosphere at 760 DEG C.-950 DEG C. for a longer period.  The castings may then be hardened by heating and quenching and tempered, e.g. at 380 DEG C. for 3-5 minutes.  The acidic lining is a mixture of silica with one or more basic constituents present in amount more than the usual 5-8% or a mixture of silica with one or more neutral diluents.  The neutral or acid slag consists essentially of lime with one or more acid constituents e.g.  .Al2O3.8-30% .Si O2.40-60% .Ca O.20-35% .with or without Mu O.1- 5% .Fe O.1- 4% .Ti O2.up to 3% .Mg O.up to 2% .P2O5.1- 2,5%
Patent GB-585632-A (GB)
Title: Improvements connected with power-operated presses
IPC: F16P3/04
Filed: 1944-07-06
Abstract: 585,632. Machinery guards. TAYLOR & CHALLEN, Ltd., and CHALLEN, H. D. July 6, 1944, No. 12891. [Class 80 (iv)] In power-operated presses, especially of the kind described in Specification 540,920, the press guard is linked to a cam-operated mechanism which serves to apply or causes to be applied a brake band to the crankshaft of the press to prohibit the stroke of the press ram until the guard is in the closed position. A brake j on the crankshaft o of a press a is controlled by a guard b acting through levers c, d, f. The lower portion of lever f carries a roller f<3> which in its normal position is clear of a cam n on the shaft o. When the gate b' of the guard b is raised the roller f<3> is urged into the dwell n' of the cam n and at the same time the brake is engaged by the links f, g, h, thus bringing the press to a stop.
Patent GB-623697-A (GB)
Title: Improvements relating to cycle dynamo mountings
IPC: B62J6/06
Filed: 1947-05-14
Abstract: 623,697. Mounting lighting dynamos on cycles. LUCAS, Ltd., J., and HAWKESWOOD, R. W. May 14, 1947, No. 12983. [Class 136 (i)] A mounting for cycle dynamos of the kind having a driving pulley adapted to be driven by contact with one side of the wheel tyre comprises the combination with the dynamo, of a laterally extending pivot piece relatively to which the dynamo can be rocked into or out of operative position, and which is adapted at its outer end for attachment to the cycle frame or a clip or bracket thereon, a catch adapted to be moved into a gap between a flat on the pivot piece and a stop piece on the body part of the dynamo for holding the latter in its inoperative position and a spring for moving the dynamo to its operative position when the catch is moved out of the gap. A dynamo 1 with pulley 2 has a boss 3 into which extends the narrowed part 5 of a pivot piece 4. A helical spring 7 is mounted around the part 5 and has one end 8 anchored to the part 4 and the other end 9 secured to the boss 3. At the outer end the pivot has a flat side 10 corresponding and spaced from a straight end 13 of a stop plate 12 screwed to the outer face of the boss 3. A spring urged catch 14 in the form of a bell crank lever is pivoted to the pivot 4. One end 16 of the catch serves as a finger lever and the other end 17 occupies the gap between the sides 10 and 13 when the dynamo is idling. When the catch is released the spring turns the dynamo so that the driving pulley contacts the wheel. The end 18 of the pivot is connected to the frame by a bracket 21.
Patent GB-271109-A (GB)
Title: Improvements in and relating to piston rings
IPC: F16J9/06
Filed: 1927-05-14
Abstract: 271,109. Maurich, E. May 14, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 16, 1927]. Piston packing. - In packing of the type comprising a pair of rings 1 pressed axially and radially by an intermediate ring 2 of wedge section, the apex angle of the ring 2 is made less than 65‹ and the radial width of the packing- ring assembly is at least one and a half times its axial depth. The ring 2 may be replaced by a pair of rings 2, 2<1>. The joint between the ends of each piston ring is made, between the points 8, 9, Fig. 3, on the surface of a cone having its apex in the cylinder axis, the cut thus penetrating the working surface and one side of the ring. The conical surface merges into curved surfaces at the ends. Specification 196,803 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) described also a joint for a ring of rectangular section comprising a finger 15, Fig. 6 (Cancelled), of approximately S shape and half the width of the ring, on one end thereof engaging a recess of similar form on the other end of the ring. A butt joint 12 between the other parts of the ends was preferably situated at a point intermediate between the ends of th finger and recess. The joint shown in Fig. 3 was applied also to a ring of rectangular section. This subject-matter does not appear in the Specification as accepted.
Patent GB-499099-A (GB)
Title: Improvements in or relating to coke-oven door operating mechanism
IPC: C10B25/14
Filed: 1938-05-02
Abstract: 499,099. Door fastenings. KOPPERS CO. May 2, 1938, No. 13078. Convention date, May 5, 1937. [Class 44] [Also in Group XII] The latch-bars 17 of a coke oven door are each mounted on a threaded pin 13, and are tightened against or released from latch hooks 14 by rotation of the pins 13 by reversible electric motors 35, the connection between the motors and the pins including universal joints so as to accommodate irregularities in alignment. The coking chamber 10 is closed by a door 11 with self-sealing means 20, a ram 25 provided with a bumper pin 26 and hook 28 supporting the door when removing it from the frame, and having secured to it by brackets 33, 34, the latch tightening units including the motor 35, reduction gearing 36 and adapter 37. The motor shaft 38 is secured to a hub plate 40 which supports a bell shaped housing 41 enclosing a universal joint assembly, a hollow shaft-like member 43 forming the driven member having angular motion relative to the driving shaft 38. Springs 49 prevent the member 43 dropping by its own weight, and keep it in alignment with the shaft 38. Sliding longitudinally within the member 43, but keyed so as to rotate with it, is a member 51 the end 60 of which is trumpet shaped, so as easily to engage the pointed end of the pin 13. A spring 52 presses the sliding member 51 outwards and against stop plate 53, and the interior of the assembly is filled with oil, ducts 59 giving access for lubrication of the sliding surfaces. When the ram 25 is caused to approach the oven door, each member 51 engages its opposite pin 13, and bevelled surfaces 22 of the pin coact with recesses in the trumpet-shaped end 60, so that when the motor is started, the screw pin 13 is rotated, and the latch-bar 17 moved towards the oven door and released from the hooks 14. The bar may then be rotated to free the door which is conveyed away from the oven by the ram and supporting means. When the door is replaced, the bar is tightened by reversing rotation of the motor.