baber/WOPTO huggingface dataset:
Patent GB-529483-A (GB)
Title: Improvements in or relating to apparatus for dry distillation of shale, coal or like material
IPC: C10B7/14
Filed: 1939-06-01
Abstract: 529,483. Distilling solid carbonaceous materials; tunnel ovens. AKTIEBOLAGET INDUSTRIMETODER. June 1, 1939, No. 16180. Convention date, Jan. 19. [Classes 51 (ii) and 55 (i)] In a tunnel oven for destructive distillation, through which the charge is conveyed on wagons and heated by forcing the gas evolved repeatedly through the material and through heaters, the latter are divided into three or more sections and each section is provided with inlets and outlets for the heating gases. The oven is divided by dampers into a preheating chamber A, a distilling chamber B, and quenching and cooling chambers C, D, the material being conveyed through these chambers on wagons E having perforated bottoms through which the distillates are circulated by fans H being reheated by passage through tubular heaters F1, F2, F3. To achieve rapid heating, the furnaces M1, M2, M3 heat the circulating gases so that their temperature at the outlets K1, K2, K3 is about 470‹C. The hot combustion gases are circulated round the pipes G by fans L1, L2, and their temperature may be reduced by mixing a portion of the cooled gases from ducts O. The heating gases are introduced at I1, I2 at the feed end of the heating sections F1, F2 and at I3 at the discharge end of the section F3, passing in the latter section in counterflow to the material
Patent GB-726480-A (GB)
Title: Apparatus for the de-dusting and classification of granular materials
IPC: B01J2/00
Filed: 1953-06-12
Abstract: 726,480. Separating solid materials. RUHRCHEMIE AKT.-GES. June 12, 1953 [July 25, 1952], No. 16194/53. Addition to 715,431. Class 117. Material charged through a pipe 7 is distributed by a body 4 into an annular classification space of increasing diameter, between the body 4 and the portion 1 of an outer casing, where it is subjected to a rising current of air entering the louvres 8 in the funnelshaped portion 2 of the casing. The material is subjected a second time to the airstream as it falls across the louvres 8 before reaching the discharge outlet 3. The part of the casing 5 surrounding the inlet pipe 7 widens upwardly to reduce the air velocity and cause a further separation. Dust-laden air passes through a lateral outlet 6. In a second embodiment, the inner deflecting body has two conical widening and tapering sections so that the material crosses the airstream four times, Fig. 2 (not shown). In a further example, the position of the deflecting body and the outlet velocity of the airstream are adjustable, Fig. 3 (not shown).
Patent GB-581241-A (GB)
Title: System for locating a radiated-signal reflector
IPC: H01Q3/22
Filed: 1942-11-16
Abstract: 581,241. Directive wireless signalling ; radiolocation. HAZELTINE CORPORATION. Nov. 16, 1942, No. 16207. Convention date, Nov. 28, 1941. [Class 40 (v)] In a system for indicating the position of a conductor, such as an aircraft, by the reflection of a beam of short waves, in which the waves are varied in frequency as the beam moves in one direction of scanning, as in Specifications 577,672 and 577,674, and in which the cathoderay beam is moved synchronously with the short-wave beam by voltages derived from the " line " and '' frame " scanning generators at the transmitter, a slight error (due to the time taken for the waves to pass from the transmitter to the reflector and back to the receiver) is avoided by deriving one of the voltages, controlling the deflection of the cathode-ray beam, from the received carrier. In the arrangement described, the transmitting equipment 13 ... 18 is the same as in Specification 577,672. The received frequency-modulated waves pass through a radio-frequency amplifier and detector 19, an intermediate-frequency amplifier 23, and limiter 24, and then divide, one part passing through an amplitude detector &c, 29, to the control electrode 31 of the cathode-ray tube, and the other part through a frequency detector 25, from which is derived an output dependent upon the frequency of the received wave. This output is amplified at 26 and applied to one pair of deflecting plates 27, the other pair 33 being energized directly from the " field " generator 18, whereby the cathoderay beam is scanned over the screen 28. The beam is normally cut off, but is allowed to pass, at the instant when the control electrode 31 receives a signal, to illuminate a spot on the screen indicating the position of the aircraft.
Patent GB-617190-A (GB)
Title: Esters of salicyclic acid
IPC: C07D295/088
Filed: 1946-05-28
Abstract: 3 - (21 : 61 - Dimethylpiperidino) - propyl salicylate <FORM:0617190/IV(b)/1> and its acid addition salts are prepared by esterification, e.g. by the reaction preferably in an inert solvent of a salicylyl halide with 3-(21 : 61-dimethylpiperidino)-propyl alcohol or of salicylic acid with a 3-(21 : 61-dimethylpiperidino)-propyl halide, to give in each case the hydrohalide salt which is convertible to the free ester by treatment with alkali.  Other salts of the ester may be prepared by treating it with the appropriate acid.  The compounds may be used as an thetics. In examples: (1) 3-(21 : 61-dimethylpiperidino)-propyl chloride is treated with salicylic acid in isopropanol to produce 3 - (21 : 61 - dimethylpiperidino) - propyl salicylate hydrochloride, and (2) the product prepared by the method of (1) is treated with aqueous sodium hydroxide to liberate the free base.  The Specification as open to inspection under Sect. 91 comprises also the preparation of the products by processes of trans-esterification, condensation and replacement.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1533982-A (GB)
Title: Furniture glides and castors
IPC: B60B33/00
Filed: 1976-05-14
Abstract: 1533982 Castors; glides COLGRYP CASTOR & PRESSINGS CO Ltd 14 May 1976 [19 April 1975] 16248/75 Heading A4U A furniture support comprises a peg having intermediate its length a collar adjacent which is a groove for snap-engagement with a floor-engaging member or a socket in the furniture. As shown, the groove 6 is engaged by a flange 14 on a glide 7 comprising two parts 8, 11 moulded of polypropylene. The peg is of steel and is provided at its upper end with a downwardly facing shoulder 4 engaged by inwardly bent tongues formed in a metal socket (not shown) screwed into a hole in a leg of a piece of furniture. Alternatively, a groove may be provided at the upper end of the peg, a spring ring being located in the groove and frictionally engaging an inner wall of the socket. In another embodiment, Fig. 2 (not shown), the peg has a groove on each side of the collar 5 for snapengaging a plastics glide and socket respectively. In a further embodiment, Fig. 3 (not shown), the peg has only one groove adjacent the upper end of the collar for snap-engaging a socket, the end of the peg on the side of the collar opposite the groove being passed through a socket in a castor and rivetted over.
Patent GB-1017809-A (GB)
Title: Noise reduction in gearing
IPC: F16H57/00
Filed: 1963-04-25
Abstract: 1,017,809. Toothed gearing. GENERAL MOTORS CORPORATION. April 25, 1963 [May 24, 1962], No. 16297/63. Heading F2Q. In order to reduce noise in a pair of intermeshing gears, e.g. in the crown and pinion drive of a vehicle back axle, Figs. 1 and 2 (not shown), the gears are so made that the contact marking patterns of the teeth of one of the gears differ from each other in an irregular manner, the contact marking pattern being the overall area of a tooth face which is contacted by parts of a mating tooth between the initial and terminal points of contact. As shown in Fig. 4, the pattern of each tooth of a ten-tooth pinion is different, but it is also possible for patterns to be repeated provided that the variation around a gear-wheel is aperiodic. The differing contact patterns may be produced by varying the tooth profile (e.g. by adjustments during forming, cutting, milling or grinding operations), by changing the initial and terminal points of contact between teeth, by varying the helix angle or by varying the tooth spacing.
Patent GB-496409-A (GB)
Title: Improvements in or relating to auxiliary-air admission devices for internal combustion engines
IPC: F02M23/12
Filed: 1937-06-12
Abstract: 496,409. Auxiliary air admission devices. ELLIS, A., and WILSON, D. June 12, 1937, No. 16392. [Class 7 (ii)] An auxiliary-air admission device is formed by a plate 1, Fig. 1, arranged between flanges on the induction pipe and the carburetter or formed in one of the flanges and is provided with one or more valve housings 13 admitting air to an annular groove 8 which communicates with a central bore 7 in the plate through tangential passages 9. Each valve housing contains two oppositely directed seating surfaces which co-operate with two valves 17, 21, Fig. 3, mounted on a common spring-pressed spindle 18, the valve 21 being closed to cut off the supply of extra air at high engine suctions. The valves may be actuated by suction or conjointly with the carburetter throttle. The annular groove may be formed in one face of an annular ring fitted into a recess in the plate, in one face of the plate and closed by a packing ring or, as shown in Fig. 4, the groove may be extended inwards from one face of the plate and closed by rings 45, 46 secured in position by a spun part of the plate. In Fig. 8, a valve housing 13 admits air through bores 56, 55 in screws 50 into passages 11a which communicate with opposite sides of the annular groove 8.
Patent GB-295793-A (GB)
Title: Improvements relating to the manufacture of nuts
IPC: B21K1/64
Filed: 1928-03-13
Abstract: 295,793. Maplethorpe, H., and Hedleys, Ltd. March 13, 1928. Forging nuts; shearing-adjuncts.-A machine for manufacturing nuts from blanks cut off a bar comprises a rotary blank carrier, a shearing blade co-operating therewith, a rotary die holder and reciprocating pressing and piercing tools. The die holder d carrying a number of dies c is rotated intermittently by a pawl and ratchet device m, n and crank &c. p to bring the dies successively opposite the pushing, pressing, piercing and ejecting tools such as f, h, j, arranged in a circle on a reciprocating head k. Each blank is cut off from the end of a heated bar inserted in a hole s in a rotating carrier b by a blade u on a bar v reciprocated by links wand eccentrics x, the severed blank being carried round by the carrier b into position opposite one of the dies c and then pushed by the tool f into the die. During each complete step-wise rotation of the die holder d the blank is successively squeezed, part pierced, completely pierced, and finally ejected.
Patent GB-956188-A (GB)
Title: Method for retreading pneumatic tire castings
IPC: B29D30/56
Filed: 1962-04-30
Abstract: 956,188. Laminates. BANDAG Inc. April 30, 1962 [May 1, 1961], No. 16415/62. Heading BSN. [Also in Division B7] In retreading a worn rubber tyre with a preformed rubber tread strip 8 by vulcanization (see Division B7), preformed strips 9, 7 of cushion gum of uniform thickness, one of the strips 9, 7 containing a vulcanization agent and the other a vulcanization accelerator, are applied to the tread strip 8 before application thereof to the tyre. The tread strip 8 may itself be a laminate, and comprise (see Fig. 4) strips 11, 12 of rubber separated by a ply 13 of reinforcing metallic threads or parallel metal cords and a sheet 14 of cushion gum. U.S.A. Specification 2,976,910 is referred to.
Patent GB-529675-A (GB)
Title: Improvements in or relating to tracks for toy vehicles
IPC: A63H18/02
Filed: 1939-06-06
Abstract: 529,675. Toy railways and bascule bridges. EINFALT, G. June 6, 1939, No. 16567. [Class 132 (iii)] A toy track composed of running sections with a smooth running surface has a bascule bridge section which comprises bascules 2, 3<SP>1</SP> pivoting about pins 2, 2<SP>1</SP> to form a flat roadway, these bascules rocking down into a horizontal position by the action of a vehicle F<SP>1</SP> on levers 7 or 7<SP>1</SP>, and returning into an upwardly inclined position after the passage of the vehicle under the action of weighted beams 8, 8<SP>1</SP>. On the other side of the track is an automatic stopping and releasing device 11 for the vehicle. A vehicle running on to this section is guided to the right by an upstanding flap 13, and an abutment on the vehicle strikes a projection 19, to slide a platform 17 on lugs 16 so that the platform sinks to the position shown in Fig. 8. A detent 28 on the vehicle drops with the platform, a tooth 30 in a gap 29 of the detent engaging and stopping the driving gear. The platforms 17, 17' are connected by a link 20 so that when one sinks the other is raised by the action of the cam surface 18 on the lugs 16 and a vehicle standing on the platform 17<SP>1</SP> has its detent 28 raised to release the driving mechanism so that the car runs off the section 11 towards the bridge. The speeds of the cars are regulated by the action of the anchor 26 on the escape wheel 25.
Patent GB-128819-A (GB)
Title: Nut-lock.
Inventor: WARREN JAMES ADDISON
IPC: F16B39/32
Filed: 1918-10-11
Abstract: 128,819. Warren, J. A., and Ste. Marie, W. G. Oct. 11, 1918. Locking nuts.-A lower washer 19 fits a non- circular part 17 of the bolt 10, not extending within the nut 25, and has a toothed or ratchet edge 20 engaged by a spring tongue or pawl 26 projecting from an upper loose washer 22 which has further tongues 24 to be bent against the side of the nut 25. Tongues 27 en the washer 19 may fit the part 17. Rotation of the bolt is prevented by lugs 12 thereon fitting recesses in a washer 14 and in the work 13.
Patent GB-1483149-A (GB)
Title: Containers and container members therefor
IPC: B65D/
Filed: 1975-04-22
Abstract: 1483149 Opening cans CONTINENTAL GROUP Inc 22 April 1975 [25 April 1974] 16606/75 Heading B8D An "easy-opening" can end has a ring 15a secured to the can end by securing lugs 26, 26<SP>1</SP>, the end being opened by pressure on the ring whereby cutting points 54, 54<SP>1</SP>, 55 pierce a score in the end, bend down a tab 14 about a point 13 and the ring is retained in the opening by a nib 19. In another embodiment, Fig. 1 (not shown) both securing lugs extend outwardly of the ring.
Patent GB-627325-A (GB)
Title: Improvements in or relating to agricultural machines for planting crops
IPC: A01C11/02
Filed: 1946-05-31
Abstract: 627,325. Planting - machines. T A P P, A. G., and TAPP, E. T. J. May 31,1946, No. 16658. [Class 6(i)] In an agricultural machine for planting crops, two endless belts 18 are arranged side by side extending in the direction of travel of the machine and pulleys 14, 20, 22 are arranged to direct adjacent stretches of the belt so that they converge while at a distance above the ground to grip a plant and diverge when close to the ground to deposit the plant. The pulleys 14 are on the same shaft as the landwheels and are provided with strakes 16 to assist in propul sion. The plants are fed to the belts by a mechanical feeder device of the type described in Specification 627,358. They are gripped by feelers 27 on an endless belt which is moved intermittently by a reciprocal pawl member 32 which is oscillated by a lever 34 arranged in the path of movement of a number of rollers 37 fixed to one of the pulleys 14. A ploughshare 39 opens up the ground for the plants and a pair of wheels 40 closes the ground after planting.
Patent GB-722011-A (GB)
Title: Improvements in generating and measuring involute or modified involute surfaces
Inventor: CLEFF PETER HERBERT
IPC: B23F5/06
Filed: 1951-07-16
Abstract: 722,011. Gauging toothed gears. MAXWELL, D. C., and PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. July 4, 1952 [July 16, 1951], No. 16787/51. Class 106 (2). [Also in Group XXII] Means for guiding a contact piece 10a of a measuring instrument to envelope a circular involute comprises a kinematically inverted cycloidal slider crank mechanism, Fig. 2, so mounted on a radius arm 1, Fig. 4, pivoted about a fixed centre 2, that the coupling link CL of the mechanism is the stationary member relative to the arm. A second arm 12 for actuating the arm 1 is connected thereto by a link 3 pivoted to the arms at 5 and A<1>, the lines joining pivots 2 and 5 and A<1> and the fixed pivot 13 being equal and parallel. Fixed to the link 3 is an arcuate element CD supporting, by tapes 8, a straight-edge 7 passing through the axis of the pivot 5. The straight-edge 7 carries a slotted plate 9 in which is guided a block 10b on the element 10. It is shown in the Specification that the element 10 envelopes a true involute originating at the centre of the pivot 2. If the pivot 13 is movable, the involute may be modified to provide or measure tip or root relief on a gear-wheel. In a modification, the straight-edge 7 lies below the axis of the pivot 5 and the element 10 projects beyond the generating mechanism. In a further modification, the element 10, Fig. 7, is mounted for sliding movement relative to the arm 1 by means of pins 15 and a.guide 16. In a final modification, the element 10, Fig. 8, is made in two relatively movable parts so that the lower part 30 may be displaced to record deviations from a true involute on a dial gauge 19. Specification 691,734 is referred to.
Patent GB-439882-A (GB)
Title: Improvements in servo brake mechanism for vehicles and the like controlled by fluid pressure
IPC: B60T13/06
Filed: 1934-06-07
Abstract: 439,882. Brakes applied by running axle ; fluid-pressure control. GATES, G. R. G., 70, Cambridge Mansions, Cambridge Road, Battersea, London. June 7, 1934, No. 16873. [Class 103 (i)] Vehicle brakes are applied by a servo-motor operated by the engine or vehicle, the servo being operated by hydraulic pressure applied by the brake pedal such that depression of the pedal operates the servo to apply the brakes and the consequent movement of the brake rigging releases the pressure in the hydraulic system whereby a follow-up action of the pedal is necessary to further apply the brakes. Should the hydraulic system fail the brakes are applied mechanically by the foot pedal. As shown in Fig. 1 a brake pedal 1 pivoted at 2 is connected by rod 3 to lever 4 operating the front and rear brakes through rods 15, 16. The servo-motor which may be of the kind described in Specification 439,923 comprises a disc 6 rotated by pinion 8 and a friction disc 9 on each side thereof, one disc being fixed to a shaft 20 and the other sliding thereon by means of a hydraulic plunger, the cylinder of which is connected by pipe 11 to a cylinder 10 on the brake pedal. A pivoted pad 13 on the pedal operates a plunger 14 and the fluid pressure is transmitted by pipe 11 to operate the friction discs which are thereby rotated by the disc 6 according to the direction of rotation of the shaft 20 to move lever 4 through connections 9a and apply the brakes. When the lever 4 is moved by the servo-motor a follow-up action has to be applied to the pad 13 of the brake pedal to maintain the braking pressure. The rod 14 of the hydraulic cylinder 10 may be pivoted at 2 to the lower end of the brake pedal. Fig. 3 shows the hydraulic cylinder 10 situated in a stirrup 17 of the brake rod 18, a strap 21 connecting the cylinder to brake lever 19. The hydraulic cylinder may be replaced by flexible bellows. The friction plates may be driven and means may be provided to take up wear between the friction faces of the servo-motor particularly when the fluid system is supplemented from a reservoir.
Patent GB-1334944-A (GB)
Title: Method of and apparatus for crimping yarn
IPC: D02G1/12
Filed: 1971-05-25
Abstract: 1334944 Yarn crimping JOSEPH BANCROFT & SONS CO 25 May 1971 [26 May 1970] 16968/71 Heading D1F A method of crimping yarn comprises feeding yarn through a nip formed by a pair of feed rolls against a surface of a conveyor belt extending along the nip, and advancing the crimped yarn by means of the conveyor belt to a setting zone. In a first apparatus, Fig. 2, a yarn 70 is fed through a nip between two rolls 11 to be crimped in a chamber confined by the rolls, plate 37 and belt 40 moving between, and possibly contacting, the rolls. The crimped yarn 71 is advanced and held compacted in channel 33 by belt 40 while being heated by heater block 30. The yarn is then cooled, the belt possibly being extended to hold the yarn compact in the cooling zone. Back pressure is imparted to the belt at the crimping chamber by a weighted element 60, which may be a roll. Element 60 may have a low-friction surface, e.g. of polytetrafluoroethylene, sliding on the belt. The size of the crimping chamber may be adjusted by raising or lowering the belt, which may also be pivoted upwards. The belt may be provided, on its yarn-contacting surface, with recessed portions, and with projecting pins, and may have a circular cross-sectional shape. The rolls 11 may be maintained in pressure contact. In a modification, the yarn is fed downwardly through a nip onto a belt, e.g. a wire, which carries the crimped yarn, uncompacted, under heaters, e.g. infra-red heaters, and through a cooling zone. In a second apparatus, Fig. 8, yarn 120 is fed through a nip between two rolls 111 to be crimped in a chamber 106 confined by the rolls, the plate 114 and belt 101. Crimped yarn is advanced by belt 101 over transfer bridge 125 to be advanced over heater 137 by and between belts 101, 122. Belt 122 may be mounted on, e.g. four pulleys. The yarn may be advanced through channel 131, whose floor may back belt 122. Bridge 125 has a slot through which the crimped yarn is advanced. Seals are secured to plate 114 and bridge 125 to wipe the end faces of rolls 111. In a third apparatus, Fig. 15, yarn 207 is fed through a nip between rolls 210, 211 to be crimped in a chamber confined by the rolls, plate 213 and belt 201. The crimped yarn is advanced by and between belt 201 and oppositely rotating, oppositely threaded screw members 216, 217. A fixed member, along which the crimped yarn is advanced, may be disposed in the nip formed by the screw members. The ends of the screw members adjacent the rolls may be supported in the rolls, or in a transfer bridge interposed between the rolls and the screw members.
Patent GB-295477-A (GB)
Title: Improvements in the manufacture and production of high grade fertilisers
IPC: C05B7/00
Filed: 1927-06-25
Abstract: 295,477. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). June 25, 1927. Manures.-A mixed fertilizer free from useless ingredients contains nitrogen, phosphorus, and potassium and comprises at least two of the salts potassium nitrate, ammonium nitrate, potassium phosphate, and ammonium phosphate. It is obtained by decomposing potassium fluosilicate with aqueous ammonia, treating the mixed solution of potassium and ammonium fluorides so obtained with mono- or di-calcium phosphate or with a phosphate solution obtained by treating crude or other phosphates with nitric or mixed nitric and sulphuric acids, if desired after removal from the solution of some of the phosphoric acid, filtering off the calcium fluoride formed, and recovering the fertilizer from the filtrate. The content of potassium in the product may be increased by converting a part of the mixed fluoride solution into nitrates by means of calcium nitrate, and removing the ammonium nitrate, if desired.