baber/WOPTO huggingface dataset:
Patent GB-1463787-A (GB)
Title: Workpiece transfer apparatus
IPC: B65G25/06
Filed: 1975-05-23
Abstract: 1463787 Conveyers MICAFIL AG 23 May 1975 [30 May 1974] 22933/75 Heading B7L A transfer apparatus is arranged to convey workpieces between positions at which operations are performed thereon, by means of one or more individually arrestable workpiece receivers 5 having on each side thereof guide rollers 9 and a respective pivotally mounted carrier arm 6. Each arm 6 is resiliently biased by a compression spring 7 into engagement with the links of one of a pair of transfer chains 1 which are continuously guided by guide members 3 so that the rollers 9 are urged against respective guide members 4 between which the workpiece receiver 5 moves. The receiver is thus frictionally propelled by engagement of the chains 1 against variously inclined faces of the ends of the arms 6, until operation of a pneumatic cylinder 13a moves a stop arm 12a into the path of a stop member 11a provided on one or both sides of the receiver 5 which is thus arrested. Each receiver 5 includes a workpiece. holder comprising replaceable jaws to grip the workpiece. The arms 6, members 3 and housings of the receivers 5 are formed of glass-fibre reinforced plastics material such as polyacetate.
Patent GB-749230-A (GB)
Title: An electrical system for indicating the presence of or rate of flow of a fluid
IPC: G01F1/684
Filed: 1954-08-06
Abstract: 749,230. Fluid flow meters; level indicators. ROGOFF, M. Aug. 6, 1954 [Aug. 13, 1953], No. 22968/54. Class 40(1) [Also in Group XVIII] The voltage drop across a thermistor exposed to the cooling effect of a fluid is used to indicate the presence of the fluid, as in a level indicator, or its rate of flow, the thermistor being supplied through a swamping resistor to keep the current nearly constant. By this means errors due to changes in temperature of the fluid are minimized. In the arrangement shown in Fig. 4, in which the thermistor 14<SP>1</SP> is supplied via a swamping resistor 18<SP>1</SP>, the voltage-responsive device is a relay 30 which is connected across the thermistor and a further series resistor 38. When the relay operates, it shunts out a normally energized relay 40 which then shunts resistor 38. This is to reduce the tendency of the main relay to chatter. In . the application to measuring fluid flow in a pipe, one thermistor 66 is subjected to the flow and another 68 is in a side branch of the pipe so as to be affected by the temperature of the fluid but not by its flow. The high resitahce of arms 70, 72 keeps the thermistor current approximately constant. Rate of flow is shown on a voltmeter 76.
Patent GB-715587-A (GB)
Title: Installations for electric wiring
IPC: H02G3/06
Filed: 1952-09-12
Abstract: 715,587. Conduits. TURNHOUT, M. VAN, TURNHOUT, L. VAN, and TURNHOUT, J. VAN. Sept. I2, 1952, [Sept. I4, 1951; Oct. 27, 1951.] No. 23030/52. Class 36. The inner surfaces of metal conduits and associated parts such as distribution boxes and connecting sleeves are coated with an insulating varnish, the end surfaces of the conduit lengths being covered by insulating rings releasably secured in engagement therewith. A flanged tubular insulating sleeve fitting in or around the end of the conduit, the flange covering the end surface, may be applied to the free end of a conduit. Where joints are to be made, insulating rings 3 may be positioned within the sleeve 2 by a corrugation 4 so that the ends 5 of conduits i bear against rings 3. Alternatively a single insulating ring 6 (Fig. 2) may be held in the sleeve by a corrugation 7. The conduit-receiving socket I2 of a distribution or switch box I I (Fig. 4) may have an insulating ring I4 secured therein, the box i and cover plate I5 being coated with insulating varnish. The varnish may be of amino resin combined with phenol resin, or may have a polyvinylchloride or polyacryl acid base.
Patent GB-1097692-A (GB)
Title: Hydraulic apparatus
Inventor: DOWTY GEORGE HERBERT
IPC: F16H39/00
Filed: 1964-06-04
Abstract: 1,097,692. Hydrostatic transmissions. DOWTY TECHNICAL DEVELOPMENTS Ltd. May 24, 1965 [June 4, 1964], No. 23127/64. Heading F2C. In an hydrostatic variable-speed transmission, e.g. between the engine and the groundengaging wheels in an agricultural tractor, comprising in a support-casing 36 a swashplate, or, as shown, tilting head pump 2 in closed circuit hydraulic connection with a swash-plate or, as shown, tilting head motor assembly 26, an auxiliary pump assembly 49 is mechanically connected to the transmission pump 2 and is so located that the overall transverse dimension of the transmission pump and the auxiliary pump assembly lies wholly or substantially between two planes extending from the extremes of the overall transverse dimension of the motor assembly at rightangles thereto. As shown, the motor assembly comprises a pair of cylinder barrels 28, 29, the pistons in which are connected respectively to motor shafts 22, 23. The cylinder barrels 28, 29 are rotatably mounted in a common tilt head 26 which is mounted on trunnions 27 and has pairs of valve ports connected in parallel to a pair of swivel joints 31. The motor shafts 22, 23 may be connected independently to drive different loads or, as shown, geared at 32-34 to a common output shaft 35. The transmission pump 2 comprises a cylinder barrel 4 the pistons in which are connected to a shaft 1. The cylinder barrel 4 is rotatably mounted in a tilt head 2 which is mounted on trunnions 3 and has a pair of valve ports connected to a pair of swivel joints 17, 18. The pairs of swivel joints 17, 18 and 31 are connected by tubular links 19, 21 mechanically and hydraulically connecting the transmission pump and motor tilt heads. The links are so arranged that with the pump head in its zero displacement position, the axes of the swivel joints 17, 18 and 31 lie in one plane with the pump trunnion axis, movement of the pump head from this position in either direction reducing motor angular displacement. Displacement is adjusted by a piston and cylinder servomotor connected to the pump head and mounted on the casing 36. The casing 36 forms a reservoir for the transmission and auxiliary circuit liquid. The auxiliary pump assembly 49 comprises a pair of gear pumps 51, 52 having a common drive shaft 53 which together with the transmission pump drive shaft 1 is geardriven from a common engine crank-shaft 42. The pump 51 is a large high-pressure pump provided with pressure-loaded bushes 55 and is intended to supply an external, e.g. tractor auxiliary, circuit. The pump 52 is a conventional pump for transmission make-up. In alternative embodiments the engine crank-shaft 42 may be connected directly to either of the drive shaft 1, 53 and the output shaft 35 may be formed as an extension of either of the motor shafts 22, 23. Where a gear train connects the transmission and auxiliary pumps, two or more gears of said train may be enclosed to form a gear pump for transmission make-up or independent purposes.
Patent GB-401071-A (GB)
Title: Method of and apparatus for pouring molten glass for feeding sheet-forming apparatus
IPC: C03B13/18
Filed: 1932-08-19
Abstract: 401,071. Glass manufacture. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT, 75, Boulevard Haussmann, Paris. Aug. 19, 1932, No. 23297. Convention date, Aug. 26. 1931. [Class 56.] A method of pouring molten glass from a pot on to a rolling-apparatus consists in tilting the pot about an axis p<3>, Fig. 6, which passes through the wall of the pot over which the glass is poured and about half-way between the top and bottom of the wall. At the same time, the pot may be moved in a direction parallel with the surface of the casting table, or with the axes of the rolls if a double-roll machine is used, in order to distribute the glass evenly along the whole length of the roll or rolls. Apparatus for tilting the pot comprises a jib 14 depending from a carriage 15 which runs on an overhead track 17, the pot 25 being supported by a girdle 8 secured to a shaft 10 journalled at the lower part of the jib. A chain wheel 11, keyed on the shaft 10, is driven by a chain 12 passing over a drum 13 which is driven by any suitable means to tilt the pot.
Patent GB-1430646-A (GB)
Title: Muting circuit
IPC: H03D3/04
Filed: 1973-05-16
Abstract: 1430646 Quadraphonic circuits; muting circuits NIPPON VICTOR KK 16 May 1973 [24 May 1972] 23309/73 Headings H4R and H3T In a muting circuit operating in response to the level of a carrier wave component in an input, and particularly for effecting stereophonic, quadraphonic switching in response to the presence of an angle modulated carrier from a discrete four-channel (i.e. CD4) disc, the carrier is detected with a detector circuit having rise and fall times which are relatively small, the detector output is fed to a first time constant circuit which has a relatively high time constant during a signal corresponding to an increase in carrier level and substantially zero time constant for a falling carrier signal level, and this output is then fed to a further time constant circuit which is effective to maintain an output signal during interruptions in the carrier signal which are of shorter duration than the "high" time constant of the first time constant circuit. As described, Fig. 5, the angle modulated carrier is selected by filter 31, amplified, and detected by rectifier 13a which has a smoothing circuit with a time constant of a few tens of microseconds. The output of the rectifier smoothing circuit switches transistor Q4 off when the carrier is "on", allowing capacitor C3 to charge up through R2 with a time constant of about 0À2 sees., and is switched "on" when the carrier level falls, causing a virtually instantaneous discharge of capacitor C3, providing a waveform at the input of transistor Q5 which follows the variations in carrier level with a rise time of about 0À2 sees. and a fall time of a few tens of microseconds. This signal switches transistor Q5 between its conducting and non- conducting states to discharge capacitor C4 virtually instantaneously or allow it to charge up with a time constant of about 0À2 to 0À3 seconds, providing an output signal at output 34 having a fall time, when the carrier is rising, of about 0À2 sees., and a rise time, when the carrier is falling, of about 0À2 to 0À3 sees. The arrangement prevents bursts of noise of duration less than 0-2 sees. being detected as carrier, but maintains an output signal on drop outs of carrier less than 0À2 to 0À3 sees. In an alternative circuit, Fig. 6 (not shown), a NAND gate (41) is connected around the time constant circuit (17b) to make the fall time (when transistor Q5 is switched on) shorter than in the embodiment of Fig. 5, while enabling the rise time to be made longer.
Patent GB-753803-A (GB)
Title: Improvements relating to the preparation of 2-benzothiazolyl sulphene morpholide
IPC: C08K5/00
Filed: 1954-08-11
Abstract: 2-Benzothiazolyl sulphene morpholide is manufactured by reacting 2-mercaptobenzothiazole with morpholine and chlorinating the resulting salt in an inert substantially anhydrous organic solvent in the presence of a sufficient quantity (but preferably not substantially more than the quantity stoichiometrically required) of a hydrogen chloride acceptor to neutralize the hydrogen chloride as it is evolved.  The first step is advantageously effected in aqueous solution (the salt being dried before the chlorination step), or in the solvent to be used in the chlorination step, which may be a chlorinated aliphatic hydrocarbon, an aromatic hydrocarbon or halogen derivative thereof, thiophene or nitrobenzene.  In examples: (1) 2-mercaptobenzothiazole and 3 molecular proportions of morpholine are added to benzene and the mixture is chlorinated; (2) 2-mercaptobenzothiazole is added to a 25 per cent aqueous solution of morpholine, and the precipitated salt is separated, washed, dried and chlorinated in benzene in the presence of additional morpholine; (3) the benzene in (1) is replaced by toluene.  In comparative experiments, aqueous solutions of sodium mercaptobenzothiazole and excess of morpholine are warmed with sodium hypochlorite.
Patent GB-715460-A (GB)
Title: Improvements in or relating to short-wave radio aerials, particularly for television and short-wave reception
Inventor: DURANT ERNEST WILLIAM
IPC: H01Q9/08
Filed: 1952-08-29
Abstract: 715,460. Aerials. TELERECTION, Ltd. Aug. 25, 1953 [Aug. 29, 1952], No. 23322/53. Addition to 707,573. Class 40 (7) In a radio aerial such as is described in the parent Specification the matching conductors 18, 18a are attached to an anchorage insulating block 21 slidably mounted on the support member 11 by means of metallic anchorage rods 26, 26a which are fixed in the block with one end projecting, the conductors being pivotally attached to the projecting ends Preferably the flattened ends of the conductor are arranged in slots in the rod ends and secured by bolts 20, 20a. One side of the block 21 may have a recessed part 31 forming a junction box in which the feeder may be connected by means of terminal screws 30 and 30a with the rods and thus the matching conductors. The box may have an outlet 32 for the feeder and a cover 33.
Patent GB-1006656-A (GB)
Title: Improvements in or relating to printing of moulded plastic articles
Inventor: WHITE IRVINE EVERARD
IPC: B41L1/22
Filed: 1961-06-28
Abstract: 1,006,656. Printing plastic bottles. ILLINGWORTH (PLASTICS) Ltd. June 14, 1962 [June 28, 1961; Oct. 9, 1961; Dec. 23, 1961], Nos. 23338/61, 36196/61 and 46147/61. Heading B6C. An automatically operated machine for blow moulding plastic bottles incorporates stencil printing apparatus such that the bottles are printed upon whilst being formed in the dies. The machine shown is of the hydraulically operated type having horizontally movable platens 31, 32 mounting dies 29 and 30 and carried by a vertically movable structure 24, various electrical limit switches and relays ensuring continuous and automatic manufacture of printed plastic bottles from a tubular Parison intermittently extruded from a head 9. The stencil printing apparatus, which comprises chambers 76, 77 and 78 closed by absorbent pads 64, 65 or 66 each pad mounting an etched copper plate, is arranged such that the chambers 76 and 77 are mounted in the surface of the die 29 whilst the die 30 incorporates the chamber 78. In operation of the machine a moving part thereof operates a solenoid through a switch 47, Fig. 8, which causes compressed air to actuate a piston 97 and thus force ink from a reservoir 61 to pass to and through the stencil plates at the same moment that the side walls of a newly formed plastic bottle contact the inner surfaces of the dies. Different colours may be passed to the plates from associated reservoirs and each pad 64, 65, 66 may be sub-divided, each sub-division receiving ink from the appropriate reservoir depending upon the colour required. The pad may be of sintered metal the plate mounted thereon having holes etched therein such as to reproduce full or half-tone effects. Alternatively the pad may be of silk or nylon. The printing surface of the stencil printing apparatus may have projections and/or recesses to correspond with projections and/or recesses on the surface to be printed. The ink enters each chamber 76, 77, 78 through holes 73, 74, 75 arranged in the bottom of a groove, such as 70, Fig. 7, which encircles the chamber. The Specification states that the term plastic as used therein is to include glass and that the stencil printing apparatus may be embodied in apparatus moulding plastic articles other than bottles.
Patent GB-902552-A (GB)
Title: Cabin pressure regulating system
IPC: G05D16/20
Filed: 1960-07-04
Abstract: 902,552. Automatic control systems for aircraft pressurization. KOLLSMAN INSTRUMENT CORPORATION. July 4, 1960 [Nov. 16, 1959], No. 23360/60. Class 38 (4). In an automatic cabin pressure regulating system a predetermined scheduled relationship between cabin pressure and external pressure is maintained by a control device responsive to the output of a first pressure transducer sensing cabin pressure and the output of a second pressure transducer sensing the pressure external to the cabin. As shown, a diaphragm capsule 17, responsive to the difference between cabin air pressure and outside air pressure, positions a synchro-transmitter 25 through a linkage 28 in accordance with a desired relationship between cabin pressure and altitude. A rotor winding 27 of the synchro-transmitter is energized from an alternating current source and the voltages induced in a stator winding 26 are applied to a stator winding 22 of a synchrotransmitter 21, the rotor of which is positioned by a diaphragm capsule 16 responsive to cabin pressure. The voltage induced in a rotor winding 23 is fed to a limiting circuit 29 by which is derived an error signal representative in polarity and magnitude of the deviation of the cabin pressure from a desired value. The error signal is fed through summing circuits 30, 31 to an amplifier 32 to energize a motor 33 positioning an exhaust valve 34 so as to maintain the desired cabin pressure constant. A discriminator 36 is arranged to be responsive to the voltage induced in the stator winding 26 after a null has been passed when differential pressure increases and delivers a signal to the summing circuit 30 which over-rides the error signal when an excessive differential pressure exists. The rate-of-change of cabin pressure is sensed by a diaphragm capsule 38 having a controlled leak 40, a pressure rate signal being derived from a winding 41 and applied to the summing circuit 31 to limit the rate of opening of valve 34. The pressure in the cabin is equalized with that of the outside air by applying a signal to the summing circuit 31 through a switch 44 actuated by the undercarriage 46 or by a pilot switch 47. The altitude of the airfield at which a landing is to take place is set by a control 14 positioning the linkage 28.
Patent GB-895356-A (GB)
Title: Improvements in and relating to fuel handling mechanisms for fluid-cooled heterogeneous nuclear reactors
Inventor: INGRAM DAVID JOHN
IPC: G21C19/06
Filed: 1959-06-08
Abstract: 895,356. Handling nuclear fuel elements. GENERAL ELECTRIC CO. Ltd. June 22, 1960 [July 8, 1959], No. 23467/59. Class 39 (4). A fuel handling mechanism for a heterogeneous fluid-cooled reactor of the kind comprising a core-containing pressure vessel and a containment vessel for the pressure vessel, comprises a pressure chamber with storage facilities for fuel elements, the chamber having a surrounding containment chamber. As shown, the reactor containment vessel 1 has a number of holes normally sealed by doors 5, each hole corresponding to a horizontal fuel element channel in the core (not shown), tubes 4 welded to the vessel 1 around the holes seal off stand pipes 2 from the biological shield of water surrounding the tubes. The stand pipes 2 extend from the pressure vessel (not shown) and are normally closed by doors 3. When a particular fuel element channel is to be serviced an auxiliary pressure vessel (not shown) is sealed against the particular hole and the door 5 is replaced by a spacer 6 and smaller door 7 (Fig. 2). The auxiliary pressure vessel is then removed and replaced by the fuel handling mechanism, a sealing member 8 of the mechanism being advanced to effect a seal around the selected hole in the containment 1, Fig. 2. The containment chamber 9 of the mechanism has a cylindrical body 10 and end covers 11, 13 and surrounds a pressure chamber having a cylindrical portion 16 closed by end plates 17, 18. The pressure chamber is axially moveable on ball races 20 by motors 30 and gearing so that a nozzle 19 on the end plate 17 may be sealed against the spacer 6, Fig. 2, the chamber then being pressurized so that its internal conditions match those in the reactor. A magazine 15 having fourteen storage holes is rotatably mounted in the pressure chamber, some of the holes containing new fuel elements. A tube 22 connects the pressure chamber with a chain operating-gear contained within the cover 11, the chain 23 being as disclosed in Specification 893,487 having an operating head 24 and extending in tubes to a sprocket wheel 26. The door 7 is retracted by the chain into one of magazine storage holes, the chain then being further retracted topermit indexing of the magazine 15 so that the head 24 may then be advanced to withdraw the door 3 into another magazine hole. Irradiated fuel elements may be then removed into other magazine holes and new fuel elements may be'introduced into the fuel element channel. Means are provided for cooling the fuel elements during their storage in the magazine.
Patent GB-1383897-A (GB)
Title: Variable-ratio power transmission mechanisms
IPC: F16H63/30
Filed: 1973-05-17
Abstract: 1383897 Change-speed gear GENERAL MOTORS CORP 17 May 1973 [26 June 1972] 23543/73 Heading F2D Epicyclic gearing comprising a pair of planetary sets 48, 18 is controlled by a clutch unit consisting of a rotatable drum 84, a brake 104 selectively engageable therewith, a pair of concentric clutches 74, 96 within the drum, a fluid motor 80 within the drum for actuating the clutch 96, a fluid motor 76 within the motor 80 for actuating the clutch 74, and a one-way drive establishing device 66 operatively connecting the gearing with the drum 84 and so arranged that it conditions the gearing for a first forwarddrive ratio when the brake is engaged, and overruns when the clutch 74 is engaged to condition the gearing for a second forward-drive ratio. A shaft 14 driven by a hydrodynamic torque converter or a fluid coupling drives sun gears 50, 16 and carries a freely rotatable sun gear 36. The latter has a drive connection 62 with a planet carrier 60, 58 which has a drive connection with the inner race 64 of the one-way device 66 and carries planets 54 meshing with the sun 50 and with a ring gear 52 which is splined to a drum 72. Alternate plates of the clutch 74 are connected to the drum 72 and to the outer race 70 of the one-way device which is mounted on a sleeve 82 of the drum 84. The clutch 96 has its alternate plates connected to the drum 84 and to the carrier 60. A carrier 24, 26 connected to the output shaft 32 has planets 20 meshing with the sun 16 and with other planets 22 in mesh with the sun 36 and with a ring gear 34. A parking pawl (not shown) coacts with teeth 33 on the part 24 of the carrier. Low ratio is obtained by engagement of the brake 104 so that the drum 84 and outer race 70 of the device 66 are held, and the one-way device is effective to hold the carrier 58, 60 and the sun 36 for reaction whereby a large reduction is provided by the train 16, 20, 22. Intermediate ratio is obtained by engagement of the clutch 74 to connect the ring gear 52 to the drum 84, which is still held by the brake 104, so that the sun 36 is driven at a reduced speed by the train 50, 54. The one-way device 66 overruns in these circumstances. High ratio is selected by releasing the brake 104 and engaging the clutch 96, with the clutch 74 remaining engaged, so that the gear sets are locked for a 1 : 1 ratio. Engine braking is obtained by engagement of the brake 104 and clutch 96, and reverse by engagement of a brake 40 only to hold the ring gear 34.