baber/WOPTO huggingface dataset:
Patent GB-519458-A (GB)
Title: Improvements in and relating to endless pan or like conveyors
IPC: B65G17/16
Filed: 1938-09-24
Abstract: 519,458. Conveyers. HARBER,. L. S., POINTON. J. E., and BAKER PERKINS, Ltd. Sept. 24, 1938, No. 27922. [Class 78 (i)] Conveyers of the type carrying swinging selflevelling pans or buckets connected to carrying chains and moving in a closed sinuous cycle, are provided with special means for passing the buckets round the end guide sprockets of the chains whereby the overall height and length of an apparatus comprising several superposed runs of .buckets can be reduced. Figs. 1 and 3 show' a series of carriers 10 suspended between a pair of chains which are formed with rollers 12 running on the rails 11. Trunnions 16 on the carriers are connected to the chains by links 18. and during straight runs rollers 17 on the trunnions and other rollers 19 on the carrier -frame all run on the rails 11. At the turning point the rollers 19 pass beyond the ends of the rail 11 while the rollers 17 are guided between members 21, 22 in a path of larger radius than that of the sprocket wheel 13. They enter the path tangentially to the upper rail 11, Fig. 1, but leave it at a lower level than that of the lower rail 11 and are led back to this level by inclined surfaces 11b, 11c of which 11b engages the trunnion roller, and 11c the leading roller 19. Similar mechanism is installed at each point where. the conveyer makes' a turn or bend in its run. A modification of the manner in which the buckets are connected to the chains is described.
Patent GB-743380-A (GB)
Title: Improvements in or relating to the removal of sheet material from rotary cylinders
IPC: B65H29/08
Filed: 1953-10-12
Abstract: 743,380. Sheet-delivery apparatus. SCHNELLPRESSENFABRIK FRANKENTHAL ALBERT & CO., AKT.-GES. Oct. 12, 1953 [Oct. 13, 1952], No. 27933/53. Class 100 (1).  A device for the removal of sheets from a rotary cylinder 6 wherein a sheet is transferred from the cylinder 6 by a driven transfer drum 1 which is provided with resilient grippers 5 and which, during the transfer, revolves with the cylinder 6 and bears thereon and wherein the sheet is deposited on to a receiver 7 during the outward part of a to and fro movement of the drum 1 with respect to the cylinder is characterized in that unrolling or deposition of the sheet upon the receiver is effected by the outward pivotal displacement of members 8 from the peripheral surface of the drum 1 which temporarily enlarges the effective periphery of the drum. The displacement of the members 8 is controlled by engagement of a lever 10, mounted on a spindle 9 to which are attached the members 8, with a stationary cam 11. The members 8 may consist of tongues or rods curved to the same extent of the drum 1 and held in grooves in the spindle 9 by spring clips 12.
Patent GB-851299-A (GB)
Title: Centrifugal switch for motion picture cameras
IPC: H02K11/23
Filed: 1957-09-04
Abstract: 851,299. Centrifugal switches. MEOPTA MODRANY NARODNI PODNIK. Sept. 4, 1957 [Sept. 6, 1956], No. 27934/57. Class 38 (5). [Also in Group XXVI] A centrifugal switch for controlling the speed of a motor driving the shutter of a motion picture camera consists of a rotatable housing driven by the motor, a pair of weights 3 pivoted at 6 to the housing, a blade spring 1 mounted between arms 2 on the weights and carrying the moving contact of the switch, and a pair of blade springs 4 each rigidly attached at one end to one weight and bearing at the other end against a pin 5 on the other weight.
Patent GB-866120-A (GB)
Title: An interrupter device for the stop motion arrangement of knitting machines
IPC: D04B35/10
Filed: 1957-09-04
Abstract: 866,120. Knitting-machines. ZAPADOMORAVSKE STROJIRNIJ NARODNI PODNIK. Sept. 4, 1957 [Sept. 7, 1956], No. 27936/57. Class 74 (2). A stop-motion for a knitting-machine comprises two pivoted levers 70, 71 held in a mutually latched position by springs 79, 80 and adapted to be released when a fault occurs in the machine by a solenoid M being energized by the fault detector so that the lever 70 is pivoted to release the lever 71. The lever 71 thereupon swings to engage a contact 83 in the circuit of a relay which operates to stop the motor of the machine. The fault detector is operated by a latch guard in the event of a defect on a needle, or by a guard which is operated in the event of a thread breaking. Alternatively a needle butt guard may actuate a striker 58 which engages an arm 72 on lever 70 to pivot the lever 70 and thereby release the lever 71.
Patent GB-914606-A (GB)
Title: Production of ammonium nitrate compositions
IPC: C06B21/00
Filed: 1959-08-17
Abstract: Dimensionally stable NH4NO3 is prepared by forming a molten NH4NO3 composition containing Mg(NO3)2 and/or Ca(NO3)2, and an amount of water greater than that covered by the area of the graph of maximum weight ratio of water to total Mg(NO3)2 and Ca(NO3)2 (expressed as oxides) as a function of weight ratio of Ca(NO3)2 to Mg(NO3)2 (expressed as oxides), evaporating water from the composition to an amount within that covered by the area of the graph and less than 2% of the composition, and cooling below the solidification point.  The evaporated water content should be below 0,5%.  Calcium and/or magnesium nitrates, hydrates, or solutions thereof may be added to molten NH4NO3, which may also contain water, or the oxides may be added and allowed to react.  Alternatively, oxide, hydroxide, or salt, e.g. carbonate, of calcium and/or magnesium may be dissolved in HNO3 and the solutions added to the reaction mixture of HNO3 and ammonia to form the molten composition.  The nitrates are used in amount 0,02-3% expressed as oxides.  Dilute molten compositions are concentrated to 92-96% NH4NO3 at 140 DEG C. under 1/2 atmos. or less, and the resulting molten composition evaporated in thin film evaporators at 170 DEG -210 DEG C. under 0,3 atmos. or less.  Cooling may be effected by granulating in air, chilling, or moulding, and the resulting material may be further dried.
Patent GB-229736-A (GB)
Title: Improvements in methods of feeding yarn to braiding machines
IPC: D04C3/00
Filed: 1923-11-07
Abstract: 229,736. Frederickson, O. A. Nov. 7, 1923. Braiding-machines.-In the process of feeding yarn to machines having inner and outer carriers, cops are produced for the inner carriers 8 by utilizing the yarn of the larger outer cops 24 in the braiding operation until they are sufficiently reduced in size to serve as inner cops. The original inner cops having been fully exhausted, the partially exhausted outer cops are transferred to the inner carriers, fresh cops being supplied to the outer carriers. The invention is described as applied to a machine in which the inner carriers 8 carry rolls 9 running on a track on the upper face of a disc 10 on a tubular support 11, and rolls 13 engaged by pushing rolls 14 carried round by frames 16 on a rotary plate 17. Each roll 14 is mounted on an axle 15 the inner end of which carries a bevel pinion 23 meshing with teeth on the underside of the disc 10. The outer cops &c.. 24, wound on paper tubes 25 rotate, as the threads 35 are drawn off, in brackets 26 mounted on a ring. 27 fastened to a drum 28 that rotates on antifriction bearings the opposite way to the plate 17. The inner yarns 33 are led directly to the underside of the braiding sleeve 34, while the threads 35 are led down through guides 36 and slots 37 in the drum 28. The guides 36 are mounted on levers pivoted to the drum 28 and carrying rolls running in fixed cam grooves 40.
Patent GB-976367-A (GB)
Title: Improvements in or relating to systems for detecting leaks in fuel elements in a nuclear reactor
Inventor: THOMPSON JANE CICELY
IPC: G21C17/04
Filed: 1962-07-20
Abstract: 976, 367. Monitoring reactors. NUCLEAR POWER PLANT CO. Ltd., and A. E. I.-JOHN THOMPSON NUCLEAR ENERGY CO. Ltd., [trading as NUCLEAR POWER GROUP]. April 29, 1963 [July 20, 1962], No. 28073/62. Heading G6C. In a leak detection system for fuel elements, at least two tapping points are provided per channel in at least some of the fuel channels of a nuclear reactor, and the two samples of cooling fluid taken from each such channel are conveyed to two independent fission product detection systems. In Fig. 1 the fuel channels 1 of a gas-cooled graphitemoderated reactor are connected in zones of 32 channels for the purpose of leak detection. Each zone is associated with a standpipe 2 and is divided into four groups a, b, c, and d. In each group samples of cooling gas from all the 8 channels are mixed together and pass to the outside of the reactor through group sample pipes 4. The sample taken from the other tapping point of each channel passes through a pipe 7 to a selector valve 8. In this way the group monitoring system and the individual channel monitoring system can operate independently of one another. Alternatively one tapping point may be connected to a group monitoring system and the other tapping point to a further group monitoring system for the same as a different group of channels. Specification 929,838 is referred to.
Patent GB-519652-A (GB)
Title: Improvements in locking devices for doors, windows and the like
IPC: E05C3/02
Filed: 1938-09-27
Abstract: 519,652. Door fastenings; locks. TVETEN, F. Sept. 27, 1938, No. 28092. Convention date, June 1, 1938. [Class 44] A door latch which is held retracted until the door is closed comprises a sectorshaped member 4 pivotally mounted on a handle spindle 3 and adapted to swing into engagement with a recess 11 under action of a spring 7. Spindle 3 has a pin 5 adapted, when the handle is rotated anti-clockwise, Fig. 2, to engage one end of a slot in the latch boss 12 to rotate the latch to the release position in which it is retained by a projection 13 on a blade spring 8 engaging under a shoulder 14 on the latch member. When the door is closed a fixed projection 9 passes through a slot 15 in the latch casing into engagement with spring 8 to withdraw projection 13, whereupon the latch moves into recess 11. Member 4 has a wedge-form nose 10 serving to press the door tightly on its seat to prevent rattle. The handle, not shown, may contain a lock serving to withdraw pin 5 to render the handle inoperative.
Patent GB-1094270-A (GB)
Title: Steel making apparatus and method of operating the same
IPC: C21C5/46
Filed: 1965-07-02
Abstract: <PICT:1094270/C6-C7/1> Steel is produced by moving a succession of mobile furnaces in a cycle, e.g. from a return track 28 via cross-over 30 and along a main track 25, first to a charging station P1 where scrap is loaded in turn to each furnace, e.g. from scrap car tracks 26 using an over-head crane 34, then to a pre-heating station P2 where the scrap is pre-heated and molten metal charged, e.g. from a car 42 on a track 27 using a ladle 41a and overhead crane 41, and then to a refining station P3 where a gas comprising oxygen is introduced e.g. by a lance supported on a crane 45 into each furnace and off-gases are withdrawn therefrom through a succeeding furnace at the pre-heating station P2, e.g. by using a suction fan 39 between a duct 35 connected to the flue at the rear of the latter furnace and a stack 40.  After refining, each furnace is moved ahead to dispose of the refined steel, e.g. at P4, and succeeding furnaces advanced in turn through the same cycle.  Any furnace may be removed from the cycle to a repair station 32. During refining, slag may be tapped into a ladle 50.
Patent GB-225842-A (GB)
Title: Improvements in or relating to the treatment of ores and metallurgical products
IPC: C22B19/38
Filed: 1924-11-25
Abstract: In a process of treating ores, residues, and other metallurgical products, the material, mixed with such an amount of fuel as will effect reduction of the volatilizable metals without causing fusion of the mass during the reaction and will also provide all or part of the balance of the heat required in the process is passed through a rotary furnace in which an oxidizing atmosphere is maintained. Volatilizable metals such as zinc, tin, lead, cadmium, arsenic, antimony, and bismuth are reduced and are reoxidized on issuing from the layer of material, and are recovered in the form of oxides.  Lime or like materials may in some cases be added to the charge to prevent fusion in the zone in which the zinc &c. is reduced.
Patent GB-968108-A (GB)
Title: Control device using fluid amplifier
IPC: F15C3/12
Filed: 1961-08-03
Abstract: 968,108. Typewriters. SPERRY RAND CORPORATION. Aug. 3, 1961 [Oat. 31, 1960], No, 28303/61. Heading B6F. [Also in Division G4] A key 1 moves a fluid jet-pipe 9 so that the nozzle is opposite a control signal input 16 to a fluid amplifier. When the key is depressed, the fluid jet from pipe 9 enters input 16 and diverts fluid streaming under pressure from chamber 18 so that pressure in output channel 19 is higher than that in output channel 20. When the key is released, a spring 24 and stop 25 locates the pipe nozzle opposite an input 15 and the jet deflects fluid from chamber 18 so that pressure in output 20 is higher than that in output 19. The changes in pressure in outputs 19 and 20 may be sensed to actuate a print or punch member or enter data into a storage register. In Fig. 3 is shown a bi-stable amplifier 17<SP>1</SP> in which a fluid stream once directed into one of the outputs 19<SP>1</SP>, 20<SP>1</SP> will continue to flow in this output after the control signal is removed. When the key is depressed, the fluid jet from pipe 9 will direct the stream from chamber 18<SP>1</SP> to output 19<SP>1</SP>. When the key is released, the jet will be directed into duct 15<SP>1</SP> where it is recirculated to the pipe 9. It is stated that this embodiment is more suitable for use with a full keyboard. A reset signal appears at input 30 and may occur after an adding operation initiated by an add key.
Patent GB-520686-A (GB)
Title: Improvements in mechanism for the delivery of measured quantities of dough or other plastic material
IPC: G01F11/02
Filed: 1938-09-29
Abstract: 520,686.. Dividing dough &c. AMERICAN MACHINE & FOUNDRY CO. Sept. 29, 1938, No. 28309. Convention date, Oct. 23, 1937. [Class 87 (ii)] A machine for dividing dough and other plastic material comprises a rotary member 2 having measuring-pockets 6 provided with pistons 7 which are moved inwardly under the pressure of the material to fill the pockets and are moved outwardly to discharge the material, the inward movement being cushioned by providing a yielding cam-member 14 adapted to be engaged by a cam-follower 9 on each piston rod 8 and cushioned by a spring 48 towards the end of its inward stroke. The cammember 14 slides within a guide block 18 mounted on a fixed cam disc 3 and moves inwardly to an adjustable limiting position with its outer face 14x coinciding with a curved surface on a cam-member 25, 23. The cammembers 25, 23 are pivotally mounted and'their positions adjusted by a screw 34 to determine the limiting position of the cam 14 and pistons 7. The cam 14 is provided with a pivoted strut 17 which is engaged by the spring 48 and forced against an extension 22 of the cam 25, the cam 14 being gradually brought'to rest with the strut 17 engaged with a curved end 21 of the extension 22. The follower 9 rides along the cams 14, 25, 23 to move the piston 7 outwards and discharge the material. The piston-rods 8 are connected to pivoted levers 11 which engage adjusting screws 13 to limit outward movement of the pistons. The cam 14 is returned to its outward position by a spring 29 connected through a slot to a headed stud 19 on the cam 14 and the return movement is cushioned by a spring-pressed arm 30. The cam disc 3 is adjustably fixed by screws 28 and can be rotatably adjusted to vary the cam setting. The rotary member 2 may be disposed horizontally about a vertical axis and there may be a number of inlets 4 and corresponding discharge positions disposed around it.
Patent GB-1308381-A (GB)
Title: Devices responsive to changes in humidity
IPC: H01H35/42
Filed: 1970-06-11
Abstract: 1308381 Hygrometers HYGROMETRIX Inc 11 June 1970 [17 June 1969] 28323/70 Heading G1S Seed throwing elements 10, Figs. 1, 3, 4 of the seed pods of plants e.g. of the genus Geranium, responding substantially only to humidity u not to normal temperatures or pressure are used in instruments to indicate humidity, and readily return to their original shape when the conditions themselves revert. The dry spiral natural element of Fig. 1 so processed by soaking and retting to clean off its outer cover and spines to leave the clean saturated arm 10 of Fig. 4. This element with others is fastened wet and at its ends to a copper clip or saddle 25 having bend overends 26, Fig. 7. As the element dries it curls itself and the clip to a Fig. 8 condition, the movement of curl taking place in a single plane and being directly proportional to the drying out of the element. The apparatus of Figs. 7 and 8 has a completely reversible action and moves the same amount during adsorption and drying.
Patent GB-483140-A (GB)
Title: Method of and apparatus for producing electroplated rolled sections and the like
IPC: C25D7/06
Filed: 1937-10-19
Abstract: 483,140. Electroplating. RUTHNER, O. Oct. 19, 1937, No. 28459. [Class 41] Rolled products such as profiled sections, strips, tubes or sheet metal are passed continuously through cleaning baths 18 and then without change of direction through an electroplating apparatus 1 which is reciprocated longitudinally, the products being finally cleaned and dried in known manner. The plating apparatus is provided with entrance and exit apertures 6, 7 of adjustable area for the work. Electrolyte overflows through these to a tank 4 from which it is pumped to a supply tank 2. Horizontally disposed anodes 10 are mounted close to the work. The cathode connection is made by rollers 9. The guide rollers 11 may be lifted above the cleaning tanks when desired. The cleaning operations may include chemical degreasing, electrolytic degreasing and acid pickling. The work may be heated by alternating current during the plating operation. The plating apparatus may be evacuated. Successive lengths of material may be interconnected mechanically or by welding and separated after plating.
Patent GB-998857-A (GB)
Title: Fractionation of alcohol mixtures containing methanol
IPC: C07C29/80
Filed: 1962-07-24
Abstract: 998,857. Separation of methanol from ethanol or isopropanol by distillation. RHONEPOULENC S.A. July 24, 1962 [Aug. 10, 1961], No. 28491/62. Heading B1B. A mixture of methanol and either ethanol or isopropanol (which mixture may also contain water) is separated into its constituents by distilling the mixture in a fractionating column Cl together with an entraining agent, e.g. cyclohexane or methylcyclohexane, which forms an azeotrope with methanol boiling at a lower temperature than pure methanol, conducting the overhead vapours in condenser R1, leading the condensate into decanter D2 where it separates into two liquid phases, refluxing the entrainer-rich phase to column Cl, and distilling the methanol-rich phase in fractionating column C2. Pure methanol is withdrawn from the bottom of column C2; and pure ethanol, or isopropanol, is withdrawn from the bottom of column C1. The vapours passing out of the top of column C2 are condensed, and the condensate is passed to decanter D2. If a small proportion of water is present in the initial mixture, a water-enriched mixture is withdrawn from column Cl by means of decanting-system D1, and separated into two liquid phases in decanter D<SP>1</SP>2. The phase richer in organic constituents is returned to column Cl, and the water-rich phase is distilled in fractionating column C3. Water is discharged from the bottom of column C3. The distillate from column C3 is partially refluxed to that column, and partially returned to column C1. If the initial mixture contains a large proportion of water, it is first fed at B2 into column C3 where the excess water is removed.
Patent GB-1471602-A (GB)
Title: Door latch mechanism
IPC: E05B15/00
Filed: 1974-06-27
Abstract: 1471602 Latches MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 27 June 1974 [27 June 1973 (2)] 28495/74 Heading E2A The door 14 of a microwave oven is latched by means of a projecting hook-shaped keeper 15 which is biassed against entry into the latching mechanism in the oven casing, but once in, is latched in place to hold the door closed. The fastening bolt of the latching mechanism may be rotary or sliding, and it is released by push-button 18, Figs. 4 and 5. In the rotary-bolt, push-button released embodiment shown in Figs. 4 and 5, the bolt 29 is biassed to each extreme position, fastening or releasing, by an over-centre spring 35. Closure of the door inserts the keeper 15 so that its nose engages arm 32 on the bolt and rotates it to its other stable (latching) position where it is itself latched by a spring-loaded hook 48 to prevent the door being forced open. The bolt 29 is loosely linked at 41, 43, with lost motion, to a lever 37 pivoted at 38. The top enu of this lever controls the energising switch 44 of the oven, and is itself movable to the de-energising and releasing position shown in broken lines by the push-button 18 acting through a lever 24. This movement first releases the latch by means of pin and slot 42, 49, and then takes up the lost motion at 41, 43 to turn the bolt 29 back to its releasing position, shown in broken lines. The bolt 29 may have several latching ramps on projection 34 (Fig. 7, not shown). Fig. 8 shows an arrangement in which a sliding latch-bolt 55 is retracted by the push-button through bell-crank-lever 64, 65. This lever has a cranked portion 65a which engages a blocking lever 66 in such a way that it (and the bolt) is held down until the nose of the keeper 15 tilts the lever 66 by engaging its top part 68.
Patent GB-1490478-A (GB)
Title: Aromatic sulphonic acid hydrazides and semi-carbazides and their use as blowing agents for polymers
IPC: C07C67/00
Filed: 1976-07-09
Abstract: 1490478 Aromatic sulphonic acid hydrazides and semicarbazides CIBA-GEIGY AG 9 July 1976 [10 July 1975] 28597/76 Heading C2C [Also in Division C3] Compounds of the formula wherein R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are H or (C 1 -C 4 ) alkyl radicals, at least one of R<SP>1</SP> and R<SP>2</SP> being alkyl, Z is H or CONH 2 . They may be prepared by reacting sulphochlorides of the formula with hydrazine or semicarbazide. Compounds wherein Z is CONH 2  may also be prepared by reacting a compound of Formula I wherein Z is H with cyanic acid or by reacting an acidaddition salt of such compounds with alkali metal cyanates. The products are useful as blowing agents with stabilizing action for polymers.
Patent GB-698501-A (GB)
Title: An improved veterinary surgical instrument
IPC: A61D1/02
Filed: 1950-11-24
Abstract: 698,501. Veterinary instruments. JOHNSON, G. Oct. 26, 1951 [Nov. 24, 1950], No. 28747/50. Class 81 (ii). A veterinary surgical instrument of crossed pivoted jaw type, for the internal incision of obstructed teats in cows, is provided with jaws 8 in the form of narrow elongated blades each having an outer cutting edge 8a and an inner blunt edge each cutting edge 8a being overlapped by the blunt edge of the other blade when the blades are closed upon each other the blades being tapered towards their outer ends. The jaws 8 each having a handle 4 are pivoted about a hinge pin 5, the handles 4 being urged apart by a spring 6. On pressing the handles 4 towards one another the jaws 8 are separated with their cutting edges 8a outermost. An adjustable screw 10 mounted in one handle enables the opening movement of the blades and consequent depth of cut to be regulated.
Patent GB-409213-A (GB)
Title: Improvements in or relating to rock drills
IPC: E21B6/06
Filed: 1933-10-17
Abstract: 409,213. Percussive drills. COCK, B., Woodbine, Camborne, HOLMAN, A. T., Chyverton, Callestick, HOLMAN, P. M., Carbis Bay, and HOLMAN BROS., Ltd., Camborne, all in Cornwall. Oct. 17, 1933, No. 28753. [Class 124.] The twist bar E has a conical exten. sion 14 which car engage a corres ponding surface or the back head. A slight longitudinal freedom of the twist bar allows these surfaces to aet as a brake, assisting the pawls to prevent rotation of the twist bar on the backward stroke of the piston. In a modification the pawls are dispensed with.