baber/WOPTO huggingface dataset:
Patent GB-326194-A (GB)
Title: Improvements in valves
IPC: F16K5/16
Filed: 1928-09-07
Abstract: 326,194. Goldberg, D. D. Sept. 7, 1928. Fluid-actuated valves; wedging or jamming.- In hydraulic &c. conduit valves, as for public water-supply systems, wherein a rotary valve member, e.g. a conical plug, is first lifted axially and then turned in opening, with reverse movements for closing, individually rotatable co-axial members are provided for separately withdrawing the valve axially and then turning the valve, in combination with a single power-operated mechanism for successively operating the said individually rotatable members. For this purpose, the spindle 19, Figs. 1 and 2, of the conical plug valve 14 has a screwed extension 23 operating within a screwed sleeve 24, the spindle and sleeve being fitted with slotted lever arms 26, 36 engaged by rollers 29, 34 on a vertically sliding crosshead 31 operated by a power piston 37 in the power cylinder 38. The slot 28 is of angular form, the lower part being in line with the path of the roller 29 when the valve is closed. When the power piston lifts to open the valve, the upper roller 34 operating in the straight slot 35 first rotates the arm 36 and with it the sleeve 24, whereby the differential action of the screw threads moves the valve axially to release it from its seating; meanwhile the lower roller 29 has retained the arm 26 and plug against rotation until entering the radial part of the slot 28, whereupon the plug is thereby rotated to its open position. The plug and casing are fitted with packing rings 13, 15, Fig. 2, which seal the casing ports in the closed position. The fluid pressure actuation is controlled by a pilot valve 42, Fig. 5, the piston 51 of which is connected to a double diaphragm 63 which when moved to the right, as shown, for closing the main valve, allows power fluid to pass from the supply channel 57 through chamber 44 and pipe 43 to the upper side of the operating piston 37; at the same time waste from the under side passes away by the pipe 39, channel 56 and waste outlet 48, 49. The control of the main valve is made automatic by means of two oppositely directed Pitot tubes 74, 77 in the valve casing on opposite sides of the main valve, and connected at 73 and 76 to opposite sides of the diaphragm 63, whereby a suitable variation of velocity of flow, or a reversal, causes the diaphragm to flex and operate the pilot valve 42. For equal pressures on opposite sides, the diaphragm is biased to the righthand closing position by reason of the area of the spindle 52 and by the spring 68 of predetermined characteristic. The pilot valve may, however, be operated manually by the hand screw 69, 71, for closing the main valve. The descent of the power piston 37 is cushioned by water temporarily trapped in an annular groove in the piston by an annular ridge, 237, as shown, at the bottom of the cylinder.
Patent GB-600179-A (GB)
Title: Improvements relating to heat interchange apparatus
IPC: F28F13/06
Filed: 1945-10-05
Abstract: 600,179. Making radiator tubes. MORRIS MOTORS, Ltd., and DONO, G. E. Oct. 5, 1945, No. 26002. [Classes 83 (ii) and 83 (iv)] [Also in Group XIII] Soldering.-A combination of tube a and webs c for heat interchange apparatus comprising a system of thin-walled flattened metal tubes, in which the web c has corrugations of substantially rectangular crosssection is made by inserting the webs, having rows of plain holes d in the crests only of each web, into the tube so that the perforated crests are in contact with the inner sides of the tube and bonding the webs to the tubes by soldering or brazing, so that the holes become filled with soldering or brazing material. Specification 538,018, [Group XIII], is referred to.
Patent GB-315846-A (GB)
Title: Process for the manufacture of improved macadam and gravel roads and macadam and gravel roads prepared according to this process
IPC: E01C7/18
Filed: 1928-09-11
Abstract: 315,846. Bie, P. B. de. July 20, 1928, [Convention date]. Macadamized roads.-In making a macadam or gravel road, the voids between the pieces of uncoated stone are filled with a mixture of sand or similar fine grained mineral and an aqueous emulsion of solid bituminous material, such as bitumen, wax, resin or the like. The road crust contains at most 3 per cent by weight of the bituminous material, a specimen composition being 100 c. feet of stone, and 40 c. feet of sand mixture, the latter including five parts by volume of sand, and one part of an emulsion containing 50 per cent of bitumen.
Patent GB-587652-A (GB)
Title: Stands for bicycles
IPC: B62H1/02
Filed: 1944-12-28
Abstract: 587,652. Bicycle supports. SCHWINN, F. W. Dec. 28, 1944, No. 26037. Convention date, Nov. 24, 1943. [Class 136 (i)] A bicycle stand of the kind adapted to be moved into operative position by the foot of the user comprises a tubular metal housing 37 mounted on the rear fork members 32, 33, Figs. 2 and 4, of the bicycle, and a prop 38 consisting of a metal rod bent at the bottom to form a foot and at the top to form a trunnion 44 which is rotatable in an open end of the housing 37 and carries a transverse pin 58 urged by a spring 69 into one of two grooves 55 in a cam 47 carried by the housing 37, the grooves being angularly spaced to receive the pin in the operative and inoperative positions of the stand respectively. The cam 47 and spring 69 are provided with cylindrical bores serving as bearing surfaces for the trunnion 44, and a washer 61 is interposed between the spring 69 and pin 58. The cam 47 may be secured in the housing 37 by a transversely extending pin, passing' through the housing and entering a groove 50' in the cam. In a modification, Fig. 9, the trunnion extends through the far end of the housing and co-operates with a cam 83 situated in a housing 89, the spring 82 being compressed between the inner end of the housing and a collar 76 welded to the trunnion. In a further modification, Fig. 16, the cam 105 is situated within the inner end of the housing and the thr@st of the spring is taken by a bush 95 secured to the housing by a V- shaped pin 98. The housing may either be welded to the frame Figs. 4, 9 and 16 or welded to one of a pair of clamping members 111, 112, Fig. 23, having flanges 114, 115 for engaging the rear fork members 32, 33. The housing may be packed with grease to act as a lubricant.
Patent GB-503017-A (GB)
Title: Improvements in and relating to apparatus for automatic measuring and ejecting oil, spirits and the like
IPC: G01F11/02
Filed: 1937-09-25
Abstract: 503,017. Dispensing liquids. REES, S., and LLEWELLYN, D. Sept. 25, 1937, No. 26038. [Class 102 (iii)] A container L is gripped between a cover 0 and a collar P into which the pump cylinder Q, having ports X<1> and a spring-loaded delivery valve V, is fitted. The piston K is operated by rods F<1>, F<2>, F<3> through a lever D pivoted on the handle A carried by the cover O. A trip member H is pivoted on the lever D and on upward movement of the lever D, it engages the lever C and through the rod E opens the valve J until the end of the stroke of the lever D, when the lever U moves to allow the valve J to close. When the lever D returns by the action of the spring B, the member H pivots and allows the lever D to move to its extreme position. A catch V is raised and engages the lever D to move the piston K to cover the ports X<1> when the apparatus is not in use.
Patent GB-1364987-A (GB)
Title: Biologically active two component complexes
IPC: C07H21/00
Filed: 1972-06-05
Abstract: 1364987 Nucleotide complexes MERCK PATENT GmbH 5 June 1972 [19 June 1971 14 April 1972] 26060/72 Heading C2P [Also in Divisions A5 and C3] Two-component complexes, capable of inducing the formation of interferon in vertebrate animals, comprise (A) a mono- or poly-riboinosinic acid of Formula I: in which R<SP>1</SP> is  wherein k is 1 to 3 and b is from 1 to 2000, or a metal or ammonium salt thereof, and (B) a mono- or polyribo-2-thiocytidylic acid of Formula III: in which R<SP>2</SP> is wherein m is 1 to 3 and n is from 1 to 2000, or a metal or ammonium salt thereof. The preferred complexes have k = m = 1, and b and/or n is greater than 100. The complexes may be prepared by admixing solutions of the homopolynucleotides of Formulae I and III. Alternatively, one of the homopolynucleotides may be formed in a solution of the other. Example 3 discloses a preparation of the two-component complex involving (essentially) the incubation at 37 C. for four hours of a mixture containing polynucleotide phosphorylase, disodium-2-thiocytidine-5<SP>1</SP>-diphosphate and component A. Example 4 discloses the preparation of the complex from polyribo-2,4-dithiouridylic acid and component A.
Patent GB-582402-A (GB)
Title: Improvements in or relating to chocolate, and chocolate articles
IPC: A23G1/36
Filed: 1939-09-18
Abstract: Chocolate is improved before, or during, manufacture by the addition of small amounts of a fatty acid ester and polyglycerol or other polymerised polyvalent alcohol.  Fatty acids such as stearic, palmitic, oleic, linolic and/or linoleic acid may be used.  If unsaturated higher fatty acids are used in the manufacture of the esters, they may be polymerised and/or oxidised, prior to, during or after the esterification, e.g., by blowing with air at high temperature.  The polyhydroxy component of the esters may be glycerol, glycol, mannitol or the like.  The amount of ester used may vary between 0,1 and 10 per cent.
Patent GB-634372-A (GB)
Title: Improvements in or relating to pulse modulation signalling systems
IPC: H04B14/02
Filed: 1946-08-30
Abstract: 634,372. Pulse signalling. PHILIPS LAMPS, Ltd. Aug. 30, 1946, No. 26164. Convention date, June 21, 1943. [Class 40 (v)] in a time modulated pulse signalling system, twin or multiple pulses are used, each consisting of two or more constantly spaced pulses, both or all of which are used at the receiver to produce single pulses which are transformed into intelligence signals. The arrangement avoids the risk of undesired pulses being produced by interference during reception. For transmission, the twin pulses may be produced by utilising two channels, one having a retarding circuit, or by means of a differentiating network, which produces two pulses of opposite polarity for each applied pulse, and then reversing the phase of one of these pulses. For reception, the signals are applied to a normal superheterodyne receiver 9-12, Fig. 4. After detection, the twin pulse signals are applied via a limiter and threshold valve circuit to a special pulse divider 15. This pulse divider comprises one channel with amplifier 21 and a parallel channel with a delay circuit 22 and an amplifier 20. The delay time of circuit 22 is chosen so that the retarded first pulse of the pulse combination is applied in like phase and simultaneously with the second pulse to threshold valve stage 23. Thus, only signals derived from the combination of two input pulses separated by the predetermined interval, will be applied from stage 23 to pulseshaping circuit 24 and thence through a filter to reproducing device 17. A circuit suitable for use as retarding circuit 22 is described in Fig. 5 (not shown), in which gas discharge tube 29 is rendered conducting by the input signals which are applied to the control grid and condenser 25 then discharges through inductance 29 thereby producing a rising voltage in coupled inductance 31 which is applied to the output terminals. The second pulse arrives while tube 29 is still conducting and thus has no effect. Fig. 7 shows a similar circuit in which an additional tube 291 and condenser 25<1> is also provided. In this case, tube 291 is sensitive to triggering impulses only when tube 29 is conducting, the discharge current from condenser 25 then modifying the cathode potential of tube 29<1>. If an input pulse is received during this period, tube 29<1> conducts, the resulting output from inductance 31<1> then being applied to the output terminals. Alternatively, a transmission line may be utilised for retarding circuit 22, the delay period then being adjustable. The use of multiple pulses as distinct from twin pulses, would involve similar arrangements, but would comprise a plurality of delay channels.
Patent GB-1144644-A (GB)
Title: Improvements in and relating to method and means of controlling the setting distancebetween platens
IPC: B21D37/14
Filed: 1965-06-21
Abstract: 1,144,644. Moulding presses. D. McLAUGHLIN. 21 June, 1966 [21 June, 1965], No. 26217/65. Headings B5A and B5F. A platen press has an air sensing system which is operable to give an indication when the platens are at a predetermined distance apart. In one example air issuing from one or more holes 14 at the corners of an upper platen 7 is cut off by bearers or spacing members 9 when the lower platen 8 reaches the chain line position. The air cut-off operates a valve controlling supply of fluid to an hydraulic cylinder operating the platen 8. The invention may be applied to a press for moulding rubber or plastics plates used in printing. 11 is the master plate and 12 a sheet of rubber or thermoplastic material. Modifications.-(i) Instead of air pressure, suction may be applied through the holes 14. (ii) The air or suction holes may be in the bearers 9. (iii) A ball valve (23), Fig. 3 (not shown), may prevent escape of air from the holes until the platens are near the predetermined position. (iv) The actual escape of air may be used to stop the press, the bearers being appropriately shaped to allow this. (v) Instead of automatic stopping of the press the air sensing system may merely give a visual or audible signal for an operator to stop the press.
Patent GB-897056-A (GB)
Title: Improvements in sheet-feeding apparatus
Inventor: KAY JAMES ARTHUR
IPC: B65H3/10
Filed: 1958-08-15
Abstract: 897,056. Feeding sheets. ROSE BROS. (GAINSBOROUGH) Ltd. Nov. 16, 1959 [Aug. 15, 1958], No. 26255/58. Class 100(1) Apparatus for separating sheets, collapsed cartons, or like blanks from the bottom of a pile in a magazine 12 comprises a reciprocating carriage 14 having a series of spaced rollers 16 which support the pile, and a suction roller 17 mounted on the carriage about mid-way thereof between two rollers 16 and in contact with the pile. The suction roller 17 has one row of spaced suction nozzles 18, is freely mounted on a suction tube 19 having a row of ports which can register with the nozzles 18, and has a gearwheel fixed thereto which constantly engages a fixed rack. The tube 19 is rotatably mounted in the carriage, and has adjacent each end a segmental gear each adapted to engage a rack in turn, but not simultaneously, whereby the tube is rocked, first in one direction, and then in the opposite direction, as the carriage 14 reciprocates so that the ports in the tube are reversed towards each end of the carriage stroke. The carriage is cam-operated in timed relationship with a pushertype conveyer 31 arranged below the magazine 12. In operation, as the carriage 14 is moved to the right, the suction roller 17 seizes the end of the bottom blank 13 and rotates counterclockwise to deflect the end of the blank through the gap between the roller 17 and the adjacent trailing support roller 16. Suction is then cut off from the nozzles 18, and continued movement of the carriage causes the trailing roller 16 to strip the blank from the pile so that the blank falls freely on to a platform 32 in the path of the pusher of the conveyer 31. On the return movement of the carriage, a further blank is separated from the pile. A valve may automatically cut off suction from the roller 17 during inoperative rolling movements thereof.
Patent GB-241592-A (GB)
Title: Improvements in aircraft
IPC: B64D13/08
Filed: 1925-10-20
Abstract: 241,592. Leparmentier, R. Oct. 20, 1924, [Convention date]. Spray carburettors. - The air-pressure in a chamber enclosing the engine carburettor is maintained constant at all altitudes by a plug which closes an aperture in the chamber to a greater or lesser extent, the plug being moved by a servo-motor controlled by a manometric capsule influenced by the air-pressure in the cabin or chamber. The carburettor B is enclosed in a chamber A having an inlet aperture C partially closed by a plug D, slidably mounted on a base and threaded upon an immovable spindle 1 rotated by a motor H. The current for the motor may be derived from a small dynamo, and is supplied over the two arms of a three-point switch G actuated by a manometric capsule F in an auxiliary chamber communicating with the main chamber A through a tube, which is made long in order that piston strokes shall not influence the capsule F. The switch is so regulated that the current source is disconnected for the standard pressure employed, but should the internal pressure of the chamber A rise or fall, due to a variable opening of the gas throttle, or to a change of altitude, the capsule F contracts or expands and closes a circuit for the motor H in such a direction that the plug D is partially inserted or withdrawn.
Patent GB-1009245-A (GB)
Title: Improvements in or relating to pressure-regulating valves
Inventor: TAYLOR ALLAN
IPC: G05D16/10
Filed: 1963-07-03
Abstract: 1,009,245. Valves. NORMALAIR Ltd. July 3, 1964 [July 3, 1963], No. 26302/63. Heading F2V. A pressure regulating valve comprises a movable valve closure 34 controlling the flow from an inlet 31 through ports 35 to an outlet 32. The closure 34 is connected to a smaller piston 37 of a piston assembly which includes a larger piston 40. The piston 40 is movable relative to the piston 37 and is urged away from the piston 37 by a spring 42. Fluid passages controlled by two solenoid pilot valves 44 are connected to the space between the pistons and the opposite sides of the pistons such that when the solenoids are de-energized, the space between the pistons is connected to the inlet and the opposite sides of the pistons to exhaust whereby the pistons are urged apart and the valve is closed. When the solenoids are energized, the spaces between the pistons are connected to exhaust and the opposite sides of the pistons are connected to the outlet whereby the valve is opened, the degree of opening being dependent on and varying with the outlet pressure. A hinged valve 49, loaded by a spring and normally retained open by balls urged outwards by a piston 51, is closed in the event of a high outlet pressure caused by the main valve sticking, say. The outlet pressure acts to move the piston 52 upwards to allow the balls to move into a groove 51 and the valve 49 then closes on to a plate 49A to throttle the outlet. When the main valve 34 is closed, a valve stem 36 acts on a rod 45 to actuate an electric switch 46 of an indicator.
Patent GB-979808-A (GB)
Title: Machine for the uninterrupted unwinding of a web of material
IPC: B65H19/18
Filed: 1962-07-09
Abstract: 979,808. Unwinding webs. JOSEPH ECK & SOHNE. July 9, 1962 [July 8, 1961], No. 26355/62. Heading B6B. A web 42 unwound from a roll 4 supported in bearings 17 passes around a pressure - applying roller 40 and a roller 37. A replacement roll 5 is mounted in bearings 24 slidable along side plates 2, 3, by means of a pair of cylinders 28. Preparatory to a splicing operation a coupling 31 is engaged with a coupling 12, such that the roll 5 is accelerated to the linear speed of the web 42 by a motor 47 and a drive/brake unit 9. The roll 5 has an adhesive area 49. When the roll 4 has almost expired and a sensing means 45 indicates that the area 49 is correctly placed the roller 40 is actuated to splice the web 42 to the roll 5. A cylinder 50 then actuates a knife to cut the web 42. When the roll 5 has been partially unwound whilst being braked by the motor 47 running as a generator, the bearings 24 are moved towards the bearings 17 and locking slides 21 of the bearings 17 and 24 are lowered to permit transfer of the roll 5 to the bearings 17. The bearings 24 are then retracted to receive a replacement roll. The roll 5 is then braked by a brake 33 actuated by a cylinder 34, Fig. 3 (not shown). In a modification the roll mounted in the bearings 17, Fig. 1, is braked by a generator 53, Fig. 4 (not shown), instead of the brake 33.
Patent GB-1318104-A (GB)
Title: Rotary head-type video tape magnetic recording and reproducing system
IPC: G01P3/54
Filed: 1970-06-01
Abstract: 1318104 Automatic speed control MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 1 June 1970 [3 June 1969 2 July 1969] 26376/70 Heading G3R  A record-reproduce video tape system includes two spaced magnetic heads for recording and sensing control signals on the tape. A rotary head records information on oblique tracks across the tape, and the tape drive and rotary head speed are synchronized with reference signals. In the embodiment of Fig. 4, a tape 1 is driven by a motor 2 through a capstan shaft 4. A head 8 senses control pulses 18, 19 which are fed back by a multi-vibrator 11 to a recording head 9 so that a train of equally spaced pulses is recorded. Pulses from the multi-vibrator 11, Fig. 2 (not shown), are also fed to a comparator 25 by way of a phase-shifter 42 for comparison with a signal derived from a reference oscillator 38. The comparator output is used to control the speed of the motor 2. A disc 28 has magnetic heads 29, 30 for recording and sensing oblique tracks 31. A rotation detector 33 produces signals for comparison with reference signals in a comparator 25' to control a motor 2' driving the disc 28 so that the tracks 31 synchronize with the pulses 18, 19. The system may be used for tape compilation, i.e. adding new information onto a part of the tape immediately following a part already recorded. For this process, the oscillator 38 is synchronized with new information signals to obtain a smooth control transition between the two parts of the tape. In another embodiment, Fig. 5 (not shown), the motor 2 also drives the disc 28 through a slipping belt (100), and an eddy current brake (102) is controlled by the output from comparator 25'. During playback, the reference signals for comparator 25' are supplied from the multivibrator 11 in place of the external oscillator.
Patent GB-700727-A (GB)
Title: Improvements in or relating to sealed joints between moulded plastic members and solid elements embedded therein and method of sealing said joints, for example as applied to ignition coils
IPC: H01F38/12
Filed: 1951-11-12
Abstract: 700,727. Inductances. INTERNATIONAL HARVESTER CO. Nov. 12, 1951 [Nov. 24, 1950], No. 26432/51. Class 38 (2). [Also in Group V] An ignition coil comprises a metallic casing 12 the ends of which are embedded in two caps 24, 26 moulded thereon ; and the joints between the casing and the caps are sealed by resilient gaskets 22 which are applied to the casing prior to the moulding. The gaskets are located in grooves in the casing, and are made of thermosetting material, e.g., rubber composition. Insulating oil 39 is contained within the casing, and if this oil reaches the gaskets, it makes them swell and so tightens the joints. The caps 24, 26 are moulded from the thermosetting phenolic material, and during moulding the casing 12, primary terminals 28, 30 and plug 50 are all embedded therein. The terminals have anchorage grooves 32, 54, and prior to moulding these grooves are filled with rubber composition. The casing is initially in two halves, and during assembly the halves are welded together at 16. Holes 36, 38 are drilled through the terminals and caps to receive the leads to the primary winding 4, and the ends of the leads are soldered at 44 and 48 to the terminals. The secondary winding 6 has one lead connected to one primary lead and another lead connected to the laminated soft iron core 8 which is connected to the plug 50. The plug 50 is coated with rubber composition 51. An insulated sheath 63 prevents damage to the coil windings.