baber/WOPTO huggingface dataset:
Patent GB-785322-A (GB)
Title: Improvements in or relating to multi-stage fluidised reactors
Inventor: MOLLER LEOPOLD
IPC: B01J8/18
Filed: 1955-02-14
Abstract: <PICT:0785322/III/1> In a single reactor 1 which comprises a number of fluidized beds 2, 3 and 4 the transfer lines 8 and 11 pass out of the reactor stages from the upper bed to the lower bed in such a manner that they can easily be cleaned from outside the reactor. Aluminium fluoride is produced from dry aluminium hydroxide and pure hydrogen fluoride or a mixture of dry air and hydrogen fluoride. Reaction takes place mainly in the second bed and is completed in the lower bed while dehydration occurs mainly in the upper bed and is completed at the second stage.
Patent GB-248723-A (GB)
Title: Improvements in stockings
IPC: A41B11/12
Filed: 1926-02-15
Abstract: 248,723. Blondin, M. C. Mareh 3, 1925, [Convention date]. Stockings.-Stockings are connected to suspenders by means of one or more strain distributing bands 1 disposed continuously around the top of the stocking, each band having a shape similar to that of the chains of a suspension bridge. The bands are knitted or woven in the manufacture of the stocking or may be secured thereto. Any number of curves may be used.
Patent GB-1477941-A (GB)
Title: Epitaxial methods of growing layers of gallium phosphide
IPC: C30B19/00
Filed: 1975-01-31
Abstract: 1477941 Epitaxial growth SONY CORP 31 Jan 1975 [7 Feb 1974] 4339/75 Heading BIS [Also in Division H1] A method of growing an epitaxial layer of gallium phosphide by liquid phase epitaxy comprises providing at least two semiconductor wafers, one of the wafers being substantially parallel to and above the other wafer at a predetermined distance, providing a melt of Ga-GaP solution to fill at least the space between the wafers and cooling the melt. As shown in Fig. 5 suitable apparatus 31 for carrying out the method comprises a quartz tube 35 with inert gas inlet 36 and outlet 37 which can be tilted around a fulcrum 46. The reaction chamber 32 comprises a beat 44 containing Ga 2 O 3  40, a melt 42 of Ga-GaP solution and two semiconductor wafers 43a and 43b spaced 2 mm apart by spacer 50. A cap member 34 fitted to the leat 44 contains a Zn-chamber 33 arranged to feed Zn vapours into the leat 44 through pipe 49. Tilting of the apparatus 31 through 5-6 causes the melt 42 of Ga-GaP to fill the space between the wafers and lowering the temperature in the quartz tube causes epitaxial layers to grow. since the concentration of GaP is higher in the upper side of the melt a thicker (e.g. 100 Á) p-type layer grows on wafer 43b than on wafer 43a (e.g. 50 Á thick).
Patent GB-1487103-A (GB)
Title: Doctor blade apparatus
IPC: D06B11/00
Filed: 1974-11-01
Abstract: 1487103 Doctoring device for use in dyeing textile webs E KUSTERS 1 Nov 1974 [11 Dec 1973] 04349/77 Divided out of 1487102 Heading D1L In application of dye in the form of a pattern to a textile web e.g. a carpet, as a film or streams of droplets from grooves in the lower end of an inclined plate 6, wherein the dye is supplied to the plate 6 from a roller 4 partially immersed in a dye trough 2, the film of liq. picked up by the roller 4 is partially doctored by a doctoring device comprising a series of transversely reciprocating blades 10. The blades are independently movable on support rods 11. The blades may either be staggered (as shown) or in-line [Fig. 2 (not shown)].
Patent GB-106474-A (GB)
Title: Improvements in or relating to Internal Combustion Engines.
Inventor: DUFOUR LEON
IPC: F01L5/10
Filed: 1917-03-26
Abstract: 106,474. Dufour, L. April 1, 1916, [Convention date]. Valves; valve-gear. - Engines with cylinders arranged in pairs in the form of a V have sleeve valves b<1>, b<2> to which a combined reciprocating and oscillating motion is imparted by rods d' d<2> secured to the lower ends of the valves and actuated by cranks g<1>, g<2>, g<3> on half-speed shafts e', e<2>, e<2>. When the main crank is on a dead .centre, the valve-actuating cranks make an angle of x/4 with the bisector of an angle x between the cylinders. According to a modified construction, the adjacent ends of each pair of rods d<1> d<2> are connected to separate cranks making with one another an angle of x/4 The means for connecting the rods d<1> d<2> to the valves is described in Specification 25398/13.
Patent GB-659496-A (GB)
Title: An adaptor for converting a kitchen chair or like chair to an infant's high chair
IPC: A47D1/10
Filed: 1949-02-17
Abstract: 659,496. Infants' seats. HAVELL, B. R. Feb. 17, 1949, No. 4377. [Class 52 (ii)] An infant's seat adapted to be mounted on a chair comprises a table frame 10 having hooks 11 for hooking on to the top of the chair back, a table 13 mounted on the frame by clips 14 so that it may be rotated forwardly to allow access to the seat, a strut 17 pivoted to the table frame at 18 and provided with a cross-bar 19 to which the seat frame 25 is pivoted the rear of the frame 25 being carried from the frame 10 by links 27. The strut 17 is provided with an adjustable U- shaped part 21 which bears against the corner of the chair seat and back. The whole arrangement is foldable into a flat condition.
Patent GB-563519-A (GB)
Title: Pen nibs and method of making the same
IPC: B21D53/76
Filed: 1943-03-18
Abstract: 563,519. Making pen nibs. SHEA, J. A. March 18, 1943, No. 4395. [Classes 83 (ii) and 83 (iv)] Bending-dies.-In making pen nibs from strip stock, as described in Specification 549,849, an intermediate step bends the ends towards one another after they have become splayed and offset by the slitting operation. The nib point to be bent is supported by a lower die 24 grooved at 23 to receive the upper die and permit sufficient movement to effect the amount of bending desired. The upper die carries a hold-down 25 yieldingly backed by a spring 36 and provided with offset surfaces corresponding to the offset of the points 15a, 15b, Fig. 5. The upper die 26 engages the ends 17a, 18a of the nib by surfaces 21 blending into surfaces 20 of different inclination that form the nib to the shape shown in Fig. 3. According to the shape of the die, the amount of bend suffices, when at a later stage the points are restored into the same plane, to bring the points either into actual contact or into close proximity with a tapering space above leading to the perforation in which the slit ends and serving to facilitate the flow of ink.
Patent GB-984787-A (GB)
Title: Web-feeding mechanism for carton blank forming press
IPC: B26D5/24
Filed: 1964-02-03
Abstract: 984,787. Cutting-out presses. ZERAND CORPORATION. Feb. 3, 1964 [Feb. 4, 1963], No. 4407/64. Heading B4B. [Also in Divisions B6 and G3] In a web fed carton-blank forming apparatus, the web W is fed by a pair of constantly rotating metering rollers F, FU, through a shiftable brake bar BB, BBU, and between a pair of intermittent feed rollers IF, IFU, Fig. 1, to the press P. A cam-shaft 35 driven continuously by direct gearing from the press P has a cam 38 for operating the brake bar and a pair of cams 44 for moving one of the intermittent feed rollers IF away from the other. The camshaft also drives through gearing, including a primary differential PD,- Fig. 2, one of the metering rollers F which in turn drives through gearing one of the intermittent feed rollers IFU. The web is fed continuously by the metering rollers F, FU and forms a loop L every time the brake bar BB clamps the web and the intermittent roller IF is lifted away from the driven roller IFU, when the press P is operated. Fig. 3 and 4 (not shown), illustrate the cam follower mechanism of the brake bar BB, and Fig. 5 and 6 (not shown), illustrate the cam follower mechanism of the feed roller IF. A selector switch S coupled directly to the cam-shaft 35, gives a signal in timed relation to the operation of the press P. This signal is compared with a signal from a photo-electric eye E scanning the web W for a registration mark, and the comparison is used to control two correction motors 53 and 97. Motor 53 drives via a chain 54 the casing of a secondary differential SD, and motor 97 drives via a chain 98a a known type of variator V. The combined outputs of the two motors are used to control the longitudinal register of the web W. The motor 97 corrects the variator ratio to continuously trim the error. In the press P, a platen 11 is fixed while a platen 13 is reciprocated along uprights 12 by a pair of connecting rods 21. Either platen may carry cutting and creasing dies while the other carries a base plate, these parts being referred to by reference numerals 14 and 15.
Patent GB-702721-A (GB)
Title: Improvements in or relating to frequency discriminator circuit arrangements
Inventor: MORTLEY WILFRID SINDEN
IPC: H03D3/16
Filed: 1952-02-20
Abstract: 702,721. Frequency demodulating. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 30, 1952 [Feb. 20, 1952], No. 4532/52. Class 40 (5) A frequency discriminator circuit comprises a (2n-1) #/4 real or artificial line, a series resonator of high Q value such as a piezo-electric crystal X included across the output terminals of the line, means for applying the narrow band of frequencies to be discriminated at substantially constant voltage to the input end of the line as by amplitude limits A and cathode follower V1 and means including a rectifier D to rectify voltage equal or proportional to the potential difference between the " live " input and output terminals of the line for providing potentials representative of the frequencies in the band. This voltage is passed via a radio frequency filter comprising a resistance RF and condenser CF to the input of a cathode follower V2. In a modification zero output is obtained at series resonance of the crystal X, the output being proportional to departures from the resonance frequency for all other frequencies within the narrow band. This modification consists in providing a second rectifier to one side of which is applied the voltage across the crystal X and to the other side
Patent GB-631093-A (GB)
Title: Improvements relating to clamps for holding scientific apparatus
IPC: B01L9/00
Filed: 1947-10-23
Abstract: 631,093. Screw clamps. GEORGE & BECKER, Ltd., W. & J., and MORRIS, R. H. Oct. 23, 1947, No. 4602/49. Divided out of 631,075. [Class 44] [Also in Group XXIII] In a clamp for holding laboratory apparatus, of the type comprising a pair. of pivoted jaws 6, 8 opened and closed by a screw 12 formed with screw threaded portions of opposite hand engaging in corresponding nut members 10, the nut members are in the form of cylinders of which the lower ends 10a, Fig. 4, are tumably mounted in holes in the jaws and the upper ends, receiving the screw are exposed by open-ended recesses 6b, 8b. Each nut member 10 has a reduced lower portion 10a carried in a hole formed in the widened part 6a, 8a of the jaw and is retained by riveting over on a washer 11. The recesses may be in the form of slots through the centre of the jaws. Specification 631,075 is referred to.
Patent GB-1142822-A (GB)
Title: Improvements in or relating to shot blasting machines
Inventor: THOMASON JAMES FARQUHAR
IPC: B24C3/20
Filed: 1967-01-31
Abstract: 1,142,822. Blasting. GUYSON INDUSTRIAL EQUIPMENT Ltd. 26 Jan., 1968 [31 Jan., 1967], No. 4608/67. Heading B3D. A rotatable shot blasting table is provided with a plurality of removable segmental members located in a recess extending round the periphery of the table so that such members cannot move radially off the table under the action of the blasting stream, said members being for holding jigs for articles to be shot blasted on the table. A perforated disc 11 rotatable about a vertical axis passing through its centre has a peripheral flange 12 to which is bolted a U-section rim 13 with a perforated base. The rim receives segmental members 15 for holding jigs for the workpieces, each member 15 comprising a perforated segmental plate 16 having a flange 17. The members 15 may be placed in the rim with the flanges 17 facing downwards, the workpieces being placed on top of the plates 16 if this carries a suitable jig or being placed under the plates so that they are held captive; the flanges may face upwards, so as to form open trays for the workpieces. The members 15 are preferably of metal, but may be of synthetic plastic. A rotatable table 10 as described above may be provided in a light industrial shot blasting machine, a minor section of the table projecting out of a sheet metal casing 20 through a front aperture 21 at each side of which there is a brush 30 extending across the full width of the rim 13 and brushing lightly thereon to prevent egress of shot from the machine and allow balance of air to the dust collection system. Under the brushes is a well into which workpieces may fall if they have been incorrectly placed on the table or if they are otherwise displaced from the table. The table 10 is rotatable by an electric motor 24 through an infinitely variable speed drive 25, belt and pulley drive 28 and worm gearing 27. Instead of being continuously driven, the table may be adapted for stepwise or sequence indexing to stop the table at a given point for a time period. Shot blasting nozzles 22 are provided. The shot may be ejected automatically from the nozzles in sequence by solenoids or the guns may be selected for separate operation for sequence indexing. Used shot is collected in a hopper 23.
Patent GB-107744-A (GB)
Title: Improvements in Apparatus for Lifting or Handling Hot Plates or the like.
Inventor: ARMSTRONG JOHN
IPC: A47J45/10
Filed: 1917-03-30
Abstract: 107,744. Armstrong, J. March 30, 1917. Tongs; holding and picking-up tools.-A pair of tongs for lifting and holding hot plates, dishes, &c. is constructed with the legs bent over at their gripping ends and with one leg shorter than the other. The legs b, c may be of metal and integrally connected as shown in Fig. 1, the jaws being faced with rubber or the like or provided with rubber pads d to prevent cracking of the plates &c. The legs may be of other resilient material such as wood connected at one end as shown in Fig. 4. To allow of a greater gripping pressure, a lever n may be pivoted to the shorter leg and bear on a fulcrum r on the longer leg. The shorter leg may have a sharp edge e, Fig. 4, to assist in separating the plates &c.
Patent GB-671730-A (GB)
Title: Improvements in reversed telephoto objectives
IPC: G02B13/02
Filed: 1950-02-23
Abstract: 671,730. Photographic objectives. KODAK, Ltd., (Eastman Kodak Co., and Tolle, K.). Feb. 23, 1950, No. 4679/50. Class 97 (i). A reversed telephoto objective comprising a front negative member spaced from a rear positive member by a distance between 0.5F and 5F, where F is the focal length of the objective, the back focal length being between 0.7 F and 2F, and in which the negative member is meniscus and convex to the front and comprises a front positive element with a closely adjacent negative element, and the positive member comprises at least two positive components, at least one being compound and including an internal pair of surfaces of negative power the total of the airspaces within the positive member being between zero and 0.4F, is characterized by the refractive index of the front element being between 1.69 and 2.00 and higher than that of the second element by between 0.18 and 0.5, and by the mean curvature of the pair of internal surfaces separating these two elements being between - 0.4/F. and +0.2/F, wherein a " pair of internal surfaces " are two closely adjacent surfaces differing in curvature by less than r0.5/F. The Specification also sets out limits for other dimensions of the objective. Data are given for three examples of the objective shown; for one example in which the rear member consists of two doublets enclosing a simple biconvex lens, for one example in which the front member is a triplet and the rear member two simple positive elements followed by a doublet or triplet and for one example in which the front member is a doublet and the rear member a doublet followed by a simple meniscus element concave to the front.
Patent GB-1099212-A (GB)
Title: Sheet film processor
IPC: G03D3/08
Filed: 1965-02-04
Abstract: 1,099,212. Photographic processing apparatus. EASTMAN KODAK CO. Feb. 4, 1965 [Feb. 6, 1964], No.4877/65. Heading G2A. In a sheet film processor comprising a series of adjacent tanks 10,..., 13 film sheets 16,..., 19 are inserted by pairs of driven rollers 25,..., 29 mounted on a movable frame 24 above the tanks. After the sheets 17,..., 19 have been in the tanks the required length of time, they are raised by supports 22 which form part of a motor driven rack 21, grasped by the roller pairs 26,..., 28, deflectors 31 guiding any skewed sheets into the nip of the rollers. The frame is then moved to the right by an eccentric drive 38. The rollers are then reversed so as to deposit the sheets in the next downstream tank, sheet 16 being fed by the rollers 25 into the tank 10, and the frame is then returned to its original position. The drive means for the rack, rollers and frame are sequentially operated through a timer 41. The last wash tank 13 is provided with a circulating pump P, and similar circulating means may be provided for the other tanks. In another embodiment Fig. 3 (not shown) for processing film of lower density than at least one of the processing liquids, a second pair of continuously rotating rollers (60) is provided within the or each appropriate tank, an adjustable support (62) being provided at the bottom of the or each tank so that when the film is immersed, it takes up the position of Fig. 4 (not shown). The film sheets of this embodiment have thick code marks (47) at one end, and to accommodate these, only one roller of each pair (25'),..., (29') is driven, the others being adjustably mounted. One roller of each pair, including the pair (60), contains a permanent magnet, the other an induced magnet so that the rollers readily grasp the film after being pushed apart by the marks (47). Modified drive means (52-57) are provided to drive the rollers (25'),..., (29') continuously. A loading rack (70) is provided for the film sheets (44), a gate (73) opening when the frame (24') is in its receiving location so as to feed the sheets to the rollers (25').
Patent GB-911245-A (GB)
Title: Manufacture of filament and film-forming polyesters
Inventor: DAVIES TREVOR
IPC: C08G63/86
Filed: 1960-02-11
Abstract: In the manufacture of film- and fibre-forming polyalkylene terephthalates by polycondensing a bis(hydroxyalkyl) terephthalate, there is used as a catalyst a germanium alkoxide, e.g. germanium tetraethoxide.  The bis(hydroxyalkyl) terephthalete may be obtained by a direct esterification or an ester-interchange process and in the latter case an additional catalyst may be used, e.g. calcium acetate, magnesium carbonate or a compound of cobalt, manganese or zinc.  The ester-interchange catalyst may be inactivated during the polycondensation reaction by the addition of triphenyl phosphite or phosphorous acid. Titanium dioxide may also be added after the ester-interchange stage.  Part of the terephthalic acid component of the polyester may be replaced by isophthalic, adipic or sebacic acids.  Examples describe the manufacture of polyethylene terephthalate from dimethyl terephthalate and ethylene glycol. Specifications 795,968 and 802,700 and U.S.A. Specification 2,587,660 are referred to.
Patent GB-1024615-A (GB)
Title: Autodoffing method and apparatus in a lap machine for a comber
IPC: D01G27/04
Filed: 1963-02-06
Abstract: 1,024,615. Lap winding apparatus. KUREHA SPINNING CO Ltd & FUJI IRON WORKS CO Ltd. Feb. 6, 1963 [Feb. 16, 1962 (2); May 29, 1962 (2); June 6, 19621 No. 4888/63. Headings D1F and D1N. A lap winding machine of the kind having lap side plates mounted on rack-bearing arms that flank lap driving rollers is provided with an automatic doffing arrangement including an empty spool supply means adopted to push a full lap off the lap drive rollers and supply a fresh spool. Laps are wound on a spool P between plates 45 carried by shafts 43 mounted on arms 2 provided with racks 3 at their lower ends. Each shaft 43 is axially slidable under the influence of pistons 46, 47 working in fluid pressure cylinders 48, 49 so as to release or clamp a spool P. Drive is transmitted to the spool by fluted lap driving rollers and when a required amount of lap has been wound a switch is automatically closed to reverse the fluid pressure acting on arms 2 . As the arms 2 approach their highest position, another switch is closed and an empty spool conveying device 20 is swung downwardly to push the lap forward until it is supported by an auxiliary roller 9 which is held in a raised positon by fluid pressure. The spool conveying device 20 in its ejecting movement carries an empty spool P to a position between the shafts 43 which then close upon it. In its earlier passage along the conveying device 20 the spool P<SP>1</SP> is wetted so that fibres will adhere. Meanwhile, the flow of material to the still rotating lap roll is stopped at guide plate 58 by the temporary clamping action of a nipper plate 60 to sever the lap. Empty spools are released from a magazine 18 under the influence of fluid pressure in a cylinder 36 which controls spool stops 22, 24. A spring-urged plate 40 pivoted at the end of the spool conveying device 20 holds empty spool P<SP>1</SP>  until the spool is drawn downwards by the arms 2 when the plate 40 is pulled aside by the descending spool. Provision may be made for manual operation. Spool magazine 18 is equipped with a microswitch for sounding an alarm when the magazine is empty.
Patent GB-739442-A (GB)
IPC: H01C10/10
Filed: 1954-02-19
Abstract: 739,442. Automagnetic regulators. WESTINGHOUSE ELECTRIC, INTERNATIONAL CO. Feb. 19, 1954 [Feb. 26, 1953], No. 4899/54. Class 38 (4). A regulator of the electromagneticallyoperated pile type incorporates a spring, having a linear force-deflection characteristic, carried by the armature and pivoting about a support making line contact with the spring. In Fig. 3 the magnet system incorporates a centre pole 54, carrying the energizing coil (not shown), an annular polepiece 52, and an armature 80 acting on a carbon pile (not shown). A spring 62 having fingers 63 and slots 65, Fig. 4, to ensure a linear force - deflection characteristic, is clamped to armature 80 by a circular plate 86, and pivots on a ridge 64 on a ring 60 fixed to pole-piece 52. The force of the spring for a given position of the armature is adjusted by varying the position of a bush 90 bearing on the inner edge of spring 62. Further adjustment is provided by the choice of thickness of a spacing ring 84, the position of centre pole 54 or the position of the distant end of the carbon pile. Dashpot damping is provided by a diaphragm 70, carried by the armature, engaging at its periphery a thin disc 68 of magnetic material placed over the magnet poles. Excessive movement of armature 80 towards pole 54 is prevented by.engagement of spring.62 with an inner ridge 116 on ring 60 to alter the slope of the force-deflection characteristic.
Patent GB-836107-A (GB)
Title: Improvements in or relating to counting-apparatus
Inventor: BLISS HARVEY NOBLE
IPC: G06C15/42
Filed: 1956-06-14
Abstract: 836,107. Counting. VEEDER-ROOT Inc. June 14, 1956, No. 4906/59. Divided out of 823,864. Drawings to Specification. Class 106(1). In a counter resetting mechanism for use in a liquid dispensing apparatus having a pump motor, a switch for said motor and a counter, the counter resetting mechanism includes a resetting control member connected to a reset spring and means for concomitantly loading the spring and actuating the said switch. The subject-matter of this Specification is identical with that described in Specification 776,014 but the claims differ. Specifications 425,473 and 684,047 also are referred to.