baber/WOPTO huggingface dataset:
Patent GB-933967-A (GB)
Title: Improvements in or relating to the production of polyethylene terephthalate
IPC: C08G63/83
Filed: 1960-09-21
Abstract: In the manufacture of polyethylene terephthalate by the polycondensation of bis-(2-hydroxyethyl)-terephthalate, there is used as a catalyst (a) an aromatic alpha-hydroxycarboxylic acid or an alkali metal salt thereof or (b) an acetate of an aromatic o-hydroxycarboxylic acid or an alkali metal salt thereof. Specified catalysts are benzilic acid, mandelic acid and acetylsalicylic acid and their potassium salts.  Antimony trioxide may be used as an additional catalyst.  Titanium dioxide may also be present during the polyesterification.  The bis-(2-hydroxyethyl)-terephthalate may be prepared by transesterifying dimethyl terephthalate with ethylene glycol in the presence of zinc acetate and the polycondensation catalyst may be present during the transesterification reaction.
Patent GB-334457-A (GB)
Title: Protecting device for valve fittings on gas cylinders and the like
IPC: F17C13/06
Filed: 1929-11-28
Abstract: 334,457. Pierre, E. H. J. Nov. 28, 1928, [Convention date]. Protecting-covers. - In a protecting device for the valves or cocks of gas cylinders of type consisting of hinged juxtaposed half shells 6, the said half shells are hinged to a ring 3 permanently secured to the vessel 1, as by rivet. ing. A hook 7 pivoted to one part 6 passes over the other part 6 to secure the two parts together. A seal is effected by a lead wire passed through interfitting projections 9, 10 on the two parts 6.
Patent GB-1525636-A (GB)
Title: Pulse code modulation with dynamic range limiting
IPC: H03G7/00
Filed: 1975-09-05
Abstract: 1525636 Pulse-code-modulation decoding PHILIPS ELECTRONIC & AND ASSOCIATED INDUSTRIES Ltd 5 Sept 1975 [10 Sept 1974] 36620/75 Heading H3H In a pulse code modulation system with dynamic compansion the expansion in the receiver is limited to obtain a more constant loudness in the output signal. In Fig. 1, a delta modulation encoder and decoder of the type described in Specification 1,261,951 include bit-pattern recognizers 27, 28, integrators 25, 26 and multipliers 21, 22 for achieving dynamic compression. The receiver includes a limiter 29, e.g. a long-tailed pair, Fig. 2 (not shown), between the integrator 26 and multiplier 22 or between the multiplier 22 and decoding integrator 14. In a high information delta modulation system (not shown) in which step size is determined by a counter reading, the counter in the receiver may have a smaller range than the one in the transmitter to achieve the limiting. In Fig. 3, a P.C.M. encoder 47 and decoder 52 of the types described in Specification 1,170,727 are provided with dynamic compansion loops 58, 59 responsive to the frequency of occurrence of the most significant bit in the P.C.M. words, the limiter 70, e.g. a single diode or counter-connected pair of diodes, being inserted in the receiver between the multiplier 63 and Shannon decoder 52. The input to the encoder includes a differentiator 40 and a circuit 42 for adding a level voltage to the input signal.
Patent GB-751350-A (GB)
Title: Improvements relating to adjustable shelf structures
IPC: A47B49/00
Filed: 1954-12-17
Abstract: 751,350. Refrigerator shelves. GENERAL ELECTRIC CO. Dec. 17, 1954 [Dec. 21, 1953 ; Dec. 21, 1953], No. 36623/54. Class 52(1). Shelves 6 are rotatably mounted on collars 16 which are threaded on to a vertical shaft 5 so that the shelves can be vertically adjusted. Accidental rotation of the shelves relative to the collars is prevented by spring-loaded detents therebetween. The collars are releasably locked to the shaft 5. As shown, a key 18 is slidably mounted in the collar and is urged into a slot 20 in the shaft by a spring 21 to prevent relative rotation of the collar and shaft. The key can be withdrawn to allow adjustment by hand operation of a lever 23 pivoted between ears 25 on a sleeve portion 11 and having a lower part 27 lying within a cut-out part 28 of the key. Lever 23 is urged to the outward position by a spring 30 which is weaker than spring 21. A notch 29 in the part 27 receives the edge 28A of the cut out part 28. Sleeve 11 is rotatably mounted in the shaft 3 and rests on the collar 16. Shelf 6 is rigidly secured to the sleeve. When it is desired to rotate the shelf, it is turned and edge 28A is forced out of notch 29 against the action of spring 30. If the shelf height is to be adjusted, lever 23 is actuated to withdraw the key 18, and the shelf is turned to rotate the collar through the notch and edge connection 29, 28A. The detent means between the shelf and collar may be entirely separate from the locking means between the collar and shaft.
Patent GB-319166-A (GB)
Title: Improved process for the production of sulphuric acid
IPC: C01B17/86
Filed: 1928-12-12
Abstract: 319,166. Metallges. Akt.-Ges., and Woisin, R. E. Dec. 12, 1928. Sulphuric acid.-The process for the production of sulphuric acid described in Specification 260,047 having three separate acid circulations is modified by causing the first mixer to be transversed jointly by the first and second acid circulations. The process may be further modified by connecting the last two irrigation chambers in the first acid circulation, the acid issuing from the penultimate chamber being passing into the first mixer. Hot roast gases pass by way of conduits 1 - - 9, through irrigtation chambers BI - - BVI, and mixers KI and KII, and so to the atmosphere through exit 11. The first acid circulation takes place through chamber BI, conduit 12 to chamber BVI, conduit 12<1> to chamber BV, conduit 12<11> to the mixer KI, and conduit 12<111> back to chamber BI. The second circulation is through chamber BII, conduit 13 into mixer KI, and conduit 13<1> back to chamber BII, the two circulations coming into contact in mixer KI. The third circulation between mixer KII, chambers BIII and BIV, and through conduits 14 and 14<1> is entirely independent of the first two. Specifications 149,648 and 187,016 also are referred to.
Patent GB-1001171-A (GB)
Title: Semiconductor devices
IPC: H01L25/03
Filed: 1963-09-18
Abstract: 1,001,171. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 18, 1963 [Sept. 21, 1962], No. 36691/63. Heading H1K. A sealed semi-conductor device comprises a base member having a thin semi-conductor wafer, leads from the wafer extending to terminal pins extending through the base member and connected to terminal strips on the other side of the base member, a flanged frame with a cover plate also being joined to the base member. Figs. 1 and 2 show a semi-conductor body 18 joined to a metallized area on ceramic base member 12. A flanged frame member 16 is bonded to base 12 and an iron-nickel-cobalt alloy plate 22 is welded or brazed to member 16 at peripheral lip 23. Leads 20 are connected via pins 14 and leads 19 to various areas on the semi-conductor body which may comprise a plurality of functional elements forming a solid circuit. The base may consist of alumina, beryllia, porcelain or high silica glass, or ceramic coated metal such as molybdenum, tungsten, nickel-iron-cobalt alloy or copper alloy. The leads may consist of copper, or nickel-cobalt-iron alloy.
Patent GB-619579-A (GB)
Title: Improvements in or relating to a multiple spindle driving mechanism
IPC: B23B39/16
Filed: 1946-12-13
Abstract: 619,579. Drilling-machines. ZAGAR TOOL, Inc. Dec. 13, 1946, No. 36830. Convention date, Dec. 29, 1945. [Class 83(iii)] In a driving mechanism of the parallel motion driving plate type the driving spindle is so connected to the driving plate that one or more driven spindles may be mounted directly beneath the driving spindle. The construction also enables at least one pair of driven spindles to be closely journalled by arranging the bodies and crank pins of the spindles to be internally tangential to the peripheries of their crank webs and provides forced lubrication for the bearing of the driving spindle which is dynamically balanced. The driving mechanism is housed in a cup-shaped member 1 closed by a detachable plate 2. The driving spindle 5 mounted in a roller-bearing 4 is formed with a crank web 15 and a crank-pin 16, the latter being received in a ball bearing 17 mounted in a socket 18 formed in the driving plate 19. The crank-pins 22 of the driven spindles 13 are received in counterbored holes 20 in the plate and are provided with needle bearings 30 whose removal is facilitated by plates 29. The crank webs 23 of the driven spindles rotate between thrust plates 27, 28, while the spindles rotate in needle bearings 24. To balance the spindle 5, a weight 33 is mounted on a disc 32 attached to the crank web 15 while to ensure smooth operation the arrangement of driven spindles is rendered symmetrical by the provision of idle spindles 31. The plate 2 has extensions 11 bored to receive vertical guide posts 12 which resist turning movements of the head during vertical adjustment and facilitate alignment of the latter with the work-holding jig. The housing 1 is partially filled with oil which is circulated by the pumping action of the plate 19 along a passage 36 to the bearing 4.
Patent GB-368691-A (GB)
Abstract: 368,691. Ticket printing, issuing, and registering apparatus. A. E. G. FAHRKARTENDRUCKER GES., Hennigsdorf, Osthavelland, Germany. Sept. 4, 1930, No. 26420. Convention date, Nov. 14, 1929. Void [Published under Sect. 91 of the Acts]. [Class 106 (iii).] According to the Specification as open to inspection under Sect. 91 (3) (a) the counting mechanism for registering tickets printed and delivered is mounted in a separate housing or frame which is removable from the ticket printing apparatus so that in portable ticket printing-machines which must be light in weight the counting can be effected at certain times and the counting mechanism removed in the intervals. Levers 1 set the parts which distinguish the kind and value of the ticket and set at the same time the bosses 2. If the housing of the counting mechanisms, Figs. 2 and 4, is pushed on to the printing apparatus a pin 6 engages a slot 7 and the bosses 2 engage corresponding bosses 3 so that during the setting of the levers 1 the toothed segments 4, 5 are rotated. Upon printing a ticket the pin 6 is moved up and down. The toothed segments 4, 5, according to the setting of the lever 1, each move slides 10, 11 by means of racks 8, 9 horizontally towards the left so that one pin of the groups of pins 12, 13 comes below the driving pins 14 of the counters 15. Upon actuation of the crank of the ticket printing machine the slides 16, 17 are moved upwards by means of the pin 6 with the result that a counting mechanism is actuated by means of each of the slides according to the setting. The casing containing the counters can be screwed on to the ticket printer.
Patent GB-813791-A (GB)
Title: Apparatus for controlling simultaneously two independent mechanisms
Inventor: HALL PETER
IPC: B62D11/08
Filed: 1955-12-23
Abstract: 813,791. Steering vehicles by declutching and braking. RANSOMES & RAPIER Ltd. Jan. 31, 1957 [Dec. 23, 1955], No. 36947/55. Class 79(2) [Also in Group XXIV] A steering control linkage for the combined clutch and locking members 16, 17, Fig. 1, between a driving shaft 10 and the half-shafts 14, 15 of driving sprockets 12, 13 of a track laying vehicle comprises a -control rod 30, Fig. 2, coupled to an arm 35 on a shaft 36 which shaft carries arms 40, 41 coupled respectively by links 42, 43 to levers 44, 45 which move the operating members 16, 17. Members 16, 17 comprise clutch dogs 19 or 20 for engaging with co-operating dogs 22 or 23 on the driving shaft 10 and locking dogs 18 or 21 for engaging fixed dogs 24 or 25. Each member 16 or 17 has a clutch engaged, locked and neutral position and the arrangement of the control linkage 40-45 is such that one clutch remains engaged owing to its linkage passing through its dead centre position whilst the other moves from locked to neutral and engaged position (see Group XXIV). Further operation of control rod 30 moves the first clutch to neutral and locked position whilst the second clutch remains engaged. In order to allow for a slight movement during the passage of the respective linkages over their dead centre positions lost-motion connections comprising pins 52, 53 in the arms 44, 45 engaging in slots 50, 51 of the links 42, 43 and being spring-pressed by springs 56 towards the inner end of the slots. These springs give in the fully engaged position of the clutches 16, 17 by the abutment of arms 44, 45 against stops 54, 55. In a modified control linkage the arms 40, 41 are on separate shafts but are operated in unison from a control shaft by toothed quadrants and pinions.
Patent GB-962420-A (GB)
Title: Ventilating ducts
IPC: F16L59/07
Filed: 1962-09-28
Abstract: 962,420. Ventilating. SVENSKA FLAKTFABRIKEN. Sept. 28, 1962 [Oct. 13, 1961], No. 36967/62. Heading F4V. [Also in Division F2] Ventilating ducts comprise concentrically mounted thinwalled sheet metal ducts 1, 2 with an insulating air space 4 therebetween, the ducts being secured relatively to one another by means only of external insulation 8 mounted on pipe bends 5, T-fittings 6 or other connecting and branching members in such a manner that the ducts are assembled respectively by being pressed into and on to the insulation. The ends of the ducts may be coated internally with a sealing agent, and the duct 2 may be secured to the fittings by rivets.
Patent GB-827877-A (GB)
Title: Improvements in or relating to rotary pumps
Inventor: SHOOSMITH GUY TAITE
IPC: F03C2/30
Filed: 1956-12-04
Abstract: 827,877. Rotary pumps. PLENTY & SON Ltd. Dec. 4, 1957 [Dec. 4, 1956], No. 37030/56. Class 110 (2). A variable capacity rotary pump, as described in Specification 740,934, in which the eccentricity of a rotating casing 16 to a rotor 12 is varied by movement of a cage 20 housing the casing 16, has the spaces 22, 24 bounded by the pump housing and the upper and lower surfaces of the cage connected through a valve 30 to a liquid source so that liquid can be selectively supplied to or withdrawn from either boundary space to alter the position of the cage 20 in the housing 10. Vanes 14 slidable in slots in the rotor 12 bear against flat surfaces of the casing 16, which is rotatable in a stationary sleeve 18 carried by the cage 20, which is slidable in the housing 10. Liquid such as lubricating oil, fuel oil or kerosene, which is preferably supplied from the delivery side of the pump, is fed to and from the spaces 22, 24 through pipes 26, 28 connected to the piston valve 30. Liquid is supplied to the valve through a pipe 32 and exhausted from the valve through pipes 34, 36. Mechanical linkages comprising levers 38, 48 connects the valve stem 40 to a rod 50 supporting the cage 20. To adjust the position of the cage 20, a motor 54 is used to rotate a threaded rod 44 and so pivot the lever 38 to move the piston 30. When the cage 20 reaches the desired position, the rod 50 rotates lever 48 to rotate lever 38 and so close the valve. Switches 56, 58 which automatically cut out the motor 54 may be used to limit the movement of lever 38. The liquid used to move the cage 20 may be supplied by an auxiliary pump.
Patent GB-1124445-A (GB)
Title: Apparatus for the manufacture of shaped products of moulded glass strip
Inventor: KABANOV NIKOLAI PAVLOVICH
IPC: C03B13/08
Filed: 1966-08-18
Abstract: <PICT:1124445/C1/1> Shaped glass structures having accurate geometric form, such as hollow bricks, are manufactured by passing a glass strip formed by rolling through a moulding arrangement comprising a mould and an insert, the mould being a guide for the moulded glass strip and having an inlet hole whose width is equal to that of the development of the preset glass pattern, whilst the outlet hole of the mould and the narrowed end of the insert designed for the transferred glass strip to be wrapped thereupon, are made of a shape which corresponds to the internal shape of the preset pattern of the part.  In a preferred embodiment (Fig. 1) a glass strip 6 is formed by rolls 1 and passes through a mould consisting of mould halves 3 and having an insert 4, to be given first a trough-like shape, and then wrapped around the insert to form the closed contour of the preset shape.  The insert 4 has a longitudinal slot 7 disposed at its upper surface designed to ensure that the welded seam joining the edges of the shaped glass strip is of correct and uniform size.  The insert 4 projects from the mould and thus helps to ensure that the product is of the correct geometric form. Calibrating members 5 attached to each other by flexible couplings 9 and having a cross-section corresponding to the internal shape of the part being manufactured are used to ensure that the product maintains the correct geometric form beyond the moulding arrangement.
Patent GB-769469-A (GB)
Title: A decorative moulding
IPC: E04F19/06
Filed: 1954-12-22
Abstract: 769,469. Mouldings. STILLEMANS, J. Dec. 22, 1954 [March 17, 1954], No. 37042/54. Class 20(4)  A decorative moulding for plane or curved surfaces for fixing in a groove pro vided in the article to be decorated is formed from malleable metal or alloy. The moulding has a serrated web 1, a ridge 2 with sharp edges 4 and a head portion 3 covered with a thin foil of copper, brass, nickel silver or alumnium. The head portion may be circular triangular, or rectangular in cross section.
Patent GB-949916-A (GB)
Title: Strip coiling and re-coiling apparatus
Inventor: DAVIS BERNARD H
IPC: B21C47/00
Filed: 1962-10-01
Abstract: 949,916. Winding and reeling. B. & K. ROLLER DIE CO. Ltd. Oct. 1, 1962, No. 37096/62. Heading B3E. A strip coiler for simultaneous winding of a plurality of metallic strips 15 into coils comprises a base 11 for said coiler, a mandrel 12 rotatably mounted on said base for winding of said metallic strips 15 thereon, a motor 13 operably connected to said mandrel 12 for operation thereof, brake means 13 connected to said motor for arresting the motion thereof, a stripper plate 17 mounted on said base 11 for linear movement parallel to said mandrel 12, operating means (an hydraulic cylinder) 18, secured to said base and communicating directly with said stripper plate 17 for procuring linear movement thereof, spaced parallel guide arms 23, 24 mounted for movement to and from the mandrel 12, an actuator (a pneumatic cylinder) 30 secured to the base 11 for moving the guide arms 23, 24, a guide shaft 31 releasably secured to said arms 23, 24, and strip coil separators 35 mounted on the shaft 31. The arms 23, 24 pivot on a shaft 25 and the shaft 31 is mounted in these arms so that it may be swung, in the arm 24, away from the arm 23 to allow the discs 35 and spacers 36 on the shaft 31 to be changed.
Patent GB-1469514-A (GB)
Title: Manufacture of n,n-dialkylamides
IPC: C07C67/00
Filed: 1973-08-07
Abstract: 1469514 Purification of dialkylamides IMPERIAL CHEMICAL INDUSTRIES Ltd 25 July 1974 [7 Aug 1973] 37367/73 Heading C2C In processes in which an N,N-dialkylamide is prepared in the presence of an alkali metal catalyst, the catalyst residues are removed from the crude product by treating it with a cation-exchange resin. The dialkylamides are prepared by (a) reacting an alkyl ester with a dialkylamine in the presence of an alkali metal alkoxide or (b) reacting a dialkylamine with carbon monoxide in the presence of an alkali metal alkoxide.
Patent GB-1127311-A (GB)
Title: Improvements in or relating to wall tiles
IPC: E04F13/18
Filed: 1965-03-12
Abstract: 1,127,311. Ornamenting. N. J. M. GRAY. 1 Nov., 1965 [12 March, 1965], No. 37392/64. Heading B6G. [Also in Division E1] A wall facing sheet of moulded thermallyinsulating material (e.g. polystyrene) has raised brick or stone simulations coated with brick or stone particles. The pointing simulations 14 may be coated with cement powder.
Patent GB-842486-A (GB)
Title: Improvements in reeds for looms for weaving
Inventor: COTTAM JOHN
IPC: D03D49/62
Filed: 1957-11-30
Abstract: 842,486. Loom reeds. AMALGAMATED COTTON MILLS TRUST Ltd. Dec. 1, 1958 [Nov. 30, 1957; Feb. 26, 1958; May 12, 1958], Nos. 37400/57, 6156/58 and 15583/58. Class 142(2). The reed wires a are spaced apart by wrapping nylon, polyester, or resinimpregnated twine a<SP>1</SP> around one or two pairs of metal bars b, a coating c of thermo-setting resin being then applied, followed by a cap C<SP>1</SP> of resin with or without metal stiffening strips d. The cap may be reinforced by glass fibre and metal strips.
Patent GB-799130-A (GB)
Title: Drilling machine for seed or artificial manure
IPC: A01C15/00
Filed: 1956-12-07
Abstract: 799,130. Distributing seed and artificial fertilizers. HANSSON, A. O., and LINDSTRÍM, H. Dec. 7, 1956, No. 37539/56. Class 6(1). A drilling machine for artificial fertilizer or seed comprising a box having openings 3 in a bottom plate and rotatable discs 4 located below the plate is characterized in that two rows of discs are provided, all the discs rotating in the same direction and one row of openings being staggered with relation to the other row. Fig. 2 shows only the bottom of the box. Flanges 8 are provided which project downwardly at the edges of the openings 3. The openings are also bounded by walls 12 provided with a recess 13 for each disc situated between guide members 16 and scrapers 6 which together form openings 17 through which material is discharged to funnels 7. The members 16 and scrapers 6 are situated below parts 2a which are attached to the sides of the box by angle irons.
Patent GB-1443619-A (GB)
Title: Piston and connecting rod arrangement for internal combustion engines
IPC: F02F3/00
Filed: 1974-08-28
Abstract: 1443619 Connecting rods MAHLE GmbH 28 Aug 1974 [7 Sept 1973] 37594/74 Heading F2T A gudgeon pin 6 is secured, by endwise clamping, between inset bosses 4, 5, with which it co-operates by means of shoulders 20, 21. The pin 6 may be of light metal and the clamping bolt 11 of steel. A slipper part (19) of the piston skirt is pivotally mounted on bushes 15, 16.
Patent GB-1159765-A (GB)
Title: Improvements in or relating to Endless Conveyors.
Inventor: LAINCHBURY DAVID JOHN
IPC: B65G19/14
Filed: 1967-08-16
Abstract: 1,159,765. Endless conveyers. LAINCHBURY & SONS Ltd. 13 Aug., 1968 [16 Aug., 1967], No. 37628/67. Heading B8A. An endless conveyer includes a substantially horizontal disposed trough 4 forming a closed loop (Fig. 1, not shown), an endless band 7 lying above the material or objects in the trough to be conveyed and mounted to circulate along a path corresponding to that of the trough, a series of flights 5 depending from the band 7 for pushing along the material or objects, and lips 6, 6, projecting inwards from the sides of the trough over the flights 5 so as to maintain them in their effective positions along their entire path of movement. As shown, the band 7 comprises a chain formed of links 7a (Fig. 5) interconnected at 8, 9. Some of the links 7a have a depending portion 10 on which the flights 5 are bolted. The chain 7 is driven by a motor (21) connected to a sprocket 15 (Fig. 3). There may be up to twenty outlet shoots (23) at respective parts of the loop and an inlet trough 20. The conveyer may be used for delivering feeding stuff for dairy cows.
Patent GB-630090-A (GB)
Title: Improvements in or relating to herbicidal compositions
IPC: A01N39/04
Filed: 1946-12-23
Abstract: Herbicidal suspensions are prepared by mixing a concentrated solution of an alkali metal salt of a phenoxyacetic acid, with stirring, with an acid-reacting solution containing cations of a divalent or trivalent metal and a protective colloid.  The pH of the aqueous phase may be between 5 and 1; the cations may be provided by dissolving calcium or magnesium chloride, or manganese or aluminium sulphate therein.  Suitable protective colloids are gum arabic or sulphate lye.  The preferred phenoxy-acetic acids are 2:4-dichlorophenoxyacetic acid and 2-methyl-4-chlorophenoxyacetic acid which may be employed as their sodium salts.  Specification 630,023 is referred to.