baber/WOPTO huggingface dataset:
Patent GB-838463-A (GB)
Title: Improvements in or relating to methods of forming spigot-and-faucet type joints between tubular thermo-plastic members and to devices for use in such methods
IPC: B29C65/20
Filed: 1957-11-05
Abstract: 838,463. Joining thermoplastic tubes. FISCHER A. G., G. Nov. 5, 1957 [Nov. 5, 1956], No. 34535/57. Class 99(1). In a method of forming a spigot-and-socket joint between thermoplastic tubes 10, 3, the outer surface of the tube 10 is melted by direct contact with a hot cylindrical surface and the inner surface of the pipe 3 is melted by direct contact with a corresponding second hot cylindrical surface, these operations being performed in such manner that the mating transverse faces of the tubes, or at least those portions of such faces nearest to the bores of the tubes, do not come into contact with hot surfaces. The tubes are removed from the hot surfaces and welded together by the insertion'of the end of the tube 10 into the end of the tube 3, and the subsequent cooling of the molten material on the heated surfaces of the members. As shown, the bore of the tube 3 is enlarged to provide a shoulder 8, and the end of the tube 10 is formed with a reduced diameter portion 11. The device 1 for heating the tubes comprises a spigot 2 having a shoulder 4 which is abutted by the end of the tube 3, and a socket 9 formed with a shoulder 13 which is brought into contact with the shoulder 7 of the tube 10. When the tube 10 is inserted into the tube 3, molten material accumulated at the positions 17, 20 produce a bead 23, and the molten material at the positions 18, 21 fills the cavity formed between the shoulders 7, 8 to produce a seam 25. Tubes of polygonal or other crosssection and of different diameters may be joined. The device 1 may be heated by a built-in electrical resistance, or constructed as a closed, hollow container heated internally by a gas flame. The external and internal surfaces of the spigot 2 and socket 9 may be of uniform diameter, the shoulders 4, 13 being replaced by fixed or adjustable pins or discs of heatresistant material ; alternatively, to control the overlap between the device and the tubes, grooves, notches or other visible indicating marks or viewing holes are provided on the device. Where the tubes are not provided with shoulders, the external end faces of the tubes are prevented from completely contacting the device by the use of a narrow external ring pressed against an abutment.
Patent GB-447888-A (GB)
Title: Improvements in or relating to modulated carrier wave transmitters
IPC: H03C3/02
Filed: 1935-12-12
Abstract: 447,888. Wireless systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Hansell, C. W.; Rocky Point, Long Island, New York, U.S.A.) Dec. 12, 1935, No. 34540. Convention date, Dec. 12, 1934. [Classes 40 (iii) and 40 (v)] A phase-modulated carrier wave transmitter comprises means for reducing the energy of undesired side frequencies by automatically increasing the energy of the modulated wave as the phase thereof deviates ahead of or behind the phase of the carrier. As shown the phase modulator 4, Fig. 4, supplied with carrier frequency from source 2 and modulating currents from source 6 feeds the pushpull amplifiers 8 feeding a radiating system. Some of the modulating energy from source 6 is fed to a double-wave rectifier 22 the load resistance R of which is in series with a resistance R1 in the lead supplying screengrid current to the paralleled valves 20. These valves act as amplitude modulators of the energy in valves 8, there being a common supply circuit to the valves 8, 20 including a modulating choke MC. In a modification, Fig. 5 (not shown), the valves 20 are triodes and the choke MC is replaced by a modulation transformer. In order more accurately to compensate for the defects in the phasemodulated output, automatically variable resistances such as the substance known as " Thyrite" (Registered Trade Mark) which have resistances varying with the potential applied thereto may be substituted for the resistances R, R1 for example or a variable resistance network, Fig. 7, containing such a resistance B may be connected between the modulator 4 and source 6. Alternatively, valves may be used in the modulator 4 having the desired characteristics. Specification 416,396 is referred to.
Patent GB-359755-A (GB)
Title: Improved method and apparatus for the destructive hydrogenation of carbonaceous materials
IPC: C10G1/08
Filed: 1930-11-17
Abstract: <PICT:0359755/III/1> In liquid-phase destructive hydrogenation, the vaporous reaction products are cooled by heat exchange, within the reaction chamber, with the incoming cold hydrogen.  Preferably the reaction products are first subjected to rectification by a series of bubble plates 5 immediately above the liquid.  Cold hydrogen entering by the valve 17 passes through a coil 1 which condenses a reflux for the plates 5.  A part of this reflux may be drawn off by a pipe 7. The uncondensed products pass through a concentric tube heat exchanger 2, supplied with hydrogen by a valve 20, and leave by a pipe 13.  The heated hydrogen passes to a chamber 11 and thence into the reaction chamber.  Specifications 329,045 and 338,150, [both in Class 32, Distilling &c.], are referred to.
Patent GB-1352714-A (GB)
Title: Electrical switch
IPC: H01H27/06
Filed: 1971-07-23
Abstract: 1352714 Snap-action switches; retractive switches ROBERT BOSCH GmbH 23 July 1971 [24 July 1970] 34560/71 Heading H1N A switch includes a key 25 which rotates a driver 27 which turns a movable contact 35 relative to fixed contacts 40, 41, 42, 43 (contact 43 being in Fig. 5, not shown), driver 27 and the housing 20 having opposed faces 31, 32 on one of which is a step dog 33 and on the other of which is a stop contour guide surface 34, Figs. 14 and 15. Compression spring 38 urges face 32 against face 31 and movable contact 35, which is a bridging contact, against fixed contacts 40, 41, 42, 43, which are arranged in a circle. In the embodiment described, stop dog 33 is on surface 32 of driver 27 which surface also carries an impact dog 70, and the contour surface 34 is on the housing. Two different surfaces 34 may be provided, that shown in Fig. 14 (snap-action from position A to position B and back again) or that shown in Fig. 15 (snap-action from position A<SP>1</SP> to position B<SP>1</SP>, then non-snap-action from position B<SP>1</SP> to position C<SP>1</SP>, and retraction from C<SP>1</SP> to B<SP>1</SP> when the key is released). Consider Fig. 14. Initially stop dog 33 is at A, impact dog 70 contacts limiting dog 68 to limit the travel of stop dog 33 and fixed contacts 40, 41 are bridged. When driver 27 is rotated, stop dog 33 rides on to protuberance 53 against the force of compression spring 38 until stop dog 33 rides over apex 54 of protuberance 53 and snaps into recess 55 under the action of spring 38. The stop dog 33 is then at B, impact dog 70 is against limiting dog 69, and fixed contacts 42, 43 are bridged. Stop dog 33 remains in this position until driver 27 is rotated back manually, snapping back to position A. Consider Fig. 15. Initially stop dog 33 is at A<SP>1</SP>, impact dog 70 contacts limiting dog 68, and fixed contacts 40, 41 are bridged. When driver 27 is rotated, stop dog 33 rides over apex 54 of protuberance 53 and snaps into recess 55. Stop dog 33 is then at B<SP>1</SP>, impact dog 70 is not in contact with either limiting dog 68 and 69, and the fixed contacts are open. If driver 27 is rotated further, stop dog 33 rides on to surface 72 until impact dog 70 strikes limiting dog 69. Stop dog 33 is then in position C<SP>1</SP>, and fixed contacts 42, 43 are bridged. However, when dog 33 moves from B<SP>1</SP> to C<SP>1</SP> a leaf spring 74, Fig. 6 (not shown) is stressed and when the key is released, spring 74 returns dog 33 from C<SP>1</SP> to B<SP>1</SP> where it remains unless moved manually by the key back to A<SP>1</SP>. Surface 34 may be a loose piece, interchangeable.
Patent GB-208905-A (GB)
Title: Improvements in or connected with flexible pipes, tubes, and the like
IPC: A63D15/06
Filed: 1922-12-19
Abstract: 208,905. Brearley, F. T., and Bull, R. T. Dec. 19, 1922. Flexible pipes. - A flexible tube for use as a billiard cushion or the like is formed from a circular section tube of indiarubber metal &c. by shaping the tube in dies until the bottoms of depressions meet forming tubular spaces f, g, h. This multiple tube is then encased in rubber to form a billiard-table cushion as shown in Fig. 4. In order to increase the resilence, air may be pumped into the tubes through pipes k, k<2>, and non-return valves n, p, until the inner edges of the tubes are separated, Fig. 5, and the cushions may be protected from the cold or frost by allowing hot-air from a furnace p to flow in.
Patent GB-891362-A (GB)
Title: A method for the production of pile textiles
Inventor: POHL FRANTISEK
IPC: D04H11/04
Filed: 1958-10-29
Abstract: 891,362. Pile fabrics. MORAVAN NARODNI PODNIK. Oct. 29, 1958, No. 34681/58. Class 142(4) [Also in Group VIII] Pile fabrics are made by corrugating a web of fibres or yarns V by means of rockable blades 7 which press the folds against adhesive-coated fabrics L and cutting between the fabrics by means of a knife 9.
Patent GB-346952-A (GB)
Abstract: 346,952. Counting-apparatus ; totalizators. ERICSSON TELEPHONES, Ltd., 67, Kingsway, London, and GINEVER, J. W., Jessamine Lodge, Wood Street, Beeston, Nottinghamshire. March 20, 1930, No. 8885. [Class 106 (i).] Registering switches rotated by the impulses received from their respective sources mark contacts in the bank of a collecting switch equal in number to the sum of the units standing on those switches, transfers necessitated by complete rotations of the switches being separately registered. The apparatus having been put in operative condition by energization of the start relay H, the tapping of a key K2 or other impulse producer closes a relay A circuit through contacts a1, a2 and interrupter contacts b1, thus energizing registering magnet B to advance its wipers b2 .. b5. By means of the wiring shown bank contacts of a switch wiper m2 are thus marked to an extent depending upon the position reached by switch B. Other contacts of the wiper m2 may be similarly wired to a second registering switch. When eight impulses have been received by the switch B a relay C is energized and locks up and thus at c2 prepares a circuit for a relay D to be closed when wiper b2 completes its rotation. Relay D then holds itself at d2, and at d3 marks a contact in a bank q1 of a collecting switch Q, other contacts in this bank being similarly controlled by transfers from other registering switches. The collected markings of the bank are counted by a switch G stepped by contact #1 of relay F. To prevent a second complete rotation of the registering switch before the first has been registered contact c3, closed when wiper b2 reaches its eighth position again, and in series with contact d4 causes a relay J to operate to prevent further signals from being sent. In order to collect and sum the units standing on the switch M a key K3 is operated to start the switch in rotation, continued by the earthing of bank m3 shown. Whenever an earthed contact is found by wiper m2 relay N is energized and thus through contact n2 causes a stepping of a counting switch P, a further contact n1 holding up switch M until switch P has operated. The key K1 is thrown to start the apparatus in operation, and at the end the key is released to bring down the start relay H whereupon the contacts h1 .. h4 provide an earth for the switch B until this has advanced to home position. The key K1 also applies earth through the wiper m3 to the magnet M to advance it one step to its starting position.
Patent GB-429946-A (GB)
Title: Improvements in or relating to leading-in insulators
IPC: H01B17/30
Filed: 1933-12-09
Abstract: 429,946. Binding - posts. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. Dec. 9, 1933, No. 34730. Convention date, Jan. 18. [Class 38 (i)] In a lead-in insulator for coupling conductors in separate media, e.g. an oil-filled cable and an external line, of the type in which an insulator tube 1 surrounds the cable and has a fluid tight joint 4 with a metal member 2 to which the end of the cable is directly clamped, the clamping means 3 is accessible from without and is covered by a detachable sealing cap 13. The member 2 has an extension 10 to which the outside conductor is clamped.
Patent GB-1158196-A (GB)
Title: Improvements in Gas Turbine Plants.
IPC: F02C6/02
Filed: 1967-07-28
Abstract: 1,158,196. Valves. STAL-LAVAL TURBIN A.B. 28 July, 1967 [4 Aug., 1966], No. 34745/67. Heading F2V. [Also in Division F1] A valve controlling the flow of gas from a gas generator to a power turbine through a conduit 8 or directly to atmosphere through a conduit 9 comprises a hollow valve cone 11 slidably mounted on the end of the conduit 9. The cone 11 is axially movable under gas pressure from a position in which the leading portion of the cone seals off the conduit 8 and the conduit 9 is open to a position in which conduit 8 is open and the cone abuts a plate 13 to seal off conduit 9. Plate 13 is supported from conduit 9 by plates 14, 15 and carries a conical nose 17 and further plates 16 upon which the cone 11 slides. In a modification, Fig. 4 (not shown), the cone 11 is controlled by a servomotor (19) in response to the pressures upstream and downstream of the cone, the gas generator speed or the combustion chamber temperature.
Patent GB-604982-A (GB)
Title: Improvements in and relating to the manufacture of metal door frames, window frames and the like
IPC: B22D19/00
Filed: 1945-12-21
Abstract: 604,982. Door and window frames. DOUZILLE, L. C. E. Dec. 21, 1945, No. 34810. Convention date, June 15, 1942. [Class 20(iii)] The mitred corners of tubular metal door and window frames are joined by gussets or inserts 5 cast in situ by pouring molten metal into apertures in the tubular members after they have been placed in their final position. Before casting, the tubular members may be blanked off at a distance from the mitres equal to the desired length of the arms of the gusset. The gusset may be positively secured by the cast metal extending into the casting apertures 8 or screws &c. 7 may be passed into the gussets through other apertures in the tubular members.
Patent GB-1320411-A (GB)
Title: Process for the agglomeration of ammonium cryolite crystals
IPC: C01F7/788
Filed: 1970-07-17
Abstract: 1320411 Ammonium cryolite UGINE KUHLMANN 17 July 1970 [18 July 1969] 34885/70 Addition to 900790 Heading C1A Ammonium cryolite, (NH 4 ) 3 AlF 6 , crystals are agglomerated by maintaining the fine crystals in suspension in an upflowing current of supersaturated ammonium cryolite solution. The product has a rounded structure, good flow properties, and a particle size of 50-500 Á. It may be used to produce anhydrous AlF 3  by calcining at 400-500 C., the by-product NH 4 F being reacted with AlF 3  to form (NH 3 )AlF 6 , both reactants being employed in very dilute solution. The ammonium cryolite solution weakened by agglomeration of the crystals may be continuously replenished with fresh solution.
Patent GB-424486-A (GB)
Title: Improvements in or relating to spectacle frames
IPC: G02C5/16
Filed: 1934-04-05
Abstract: 424,486. Spectacles. HEMPEL, P., 29, Breitestrasse, Cologne, Germany. April 5, 1934, No. 35089. Divided out of and addition to 423,641. [Class 97 (i)] In a temple piece according to the parent Specification, having a rearward extension which is resiliently urged into engagement with the side of the head, the extension is connected to the main part of the temple either by a leaf spring or by a helically coiled wire. In the form shown, the extension 4 has a projecting pin 8 extending into a socket 9 at the end of the main temple 1. A coiled spring 13 tends to rotate the extension 4 about an axis lying along the length of the temple 1 so as to press it against the head. In another form the temple and extension are in one piece which is weakened at the point of connection between them, a leaf spring being inserted at this point to urge the extension inwardly. In a further form the temple and extension are made integrally of helically coiled wire which, except at the connection between the two parts, is made rigid by an inserted reinforcement.
Patent GB-1045056-A (GB)
Title: Methyl chloroform
IPC: C07C17/42
Filed: 1965-08-17
Abstract: Methyl chloroform is stabilized by adding thereto a mixture of a tetrahydro-2-alkylfuran with at least one aliphatic monohydric alcohol. The alcohol preferably has 4-8 carbon atoms and is exemplified by sec-butyl alcohol, 2-octanol, 3-methyl-1-pentyl-3-ol, and propargyl alcohol.  Optional additives include C1- 3 nitro-alkanes. C2- 10 epoxides, diepoxides, 1,3-di-oxolanes, dioxane, furan, THF, pyran, ketones, nitriles and dialkoxy-alkanes.  The methyl chloroform may be mixed with one or more other solvents, e.g. methylene chloride, carbon tetrachloride, chloroform, 1,2-dichloroethane, tri- and per-chloroethylene, Stoddard's solvent or hexane.
Patent GB-400443-A (GB)
Title: Improvements relating to filters for petrol and other liquid fuel
IPC: B01D36/00
Filed: 1932-12-12
Abstract: 400,443. Filters. ACCESSOIRE DE PRECISION, 76, Rue Gide, Levallois-Perret, Seine, France. Dec. 12, 1932, No. 35218. Convention date, Sept. 27. [Class 46.] A filter for liquid fuel is provided with a relief passage, situated either in the filter element or its support or in a part unitary with the element, through which air or vapour trapped in the filter chamber can escape to the outlet passage for the filtered liquid. To prevent the escape of unfiltered liquid through the relief passage its inlet end may be covered with gauze. In the filter shown in Fig. 1 the relief passage 5 is formed in a metal dome 7 connected to the metal gauze filtering element 2. Gas or vapour escaping through the passage 5 passes with the filtrate down a tube 6 to the outlet 4. With the arrangement shown in Fig. 2, the gas passing through the aperture 5 joins the filtrate at the bottom of the central tube. Fig. 3 shows an upward flow filter with a relief passage 5 formed in a thimble 11 supported by the element 2. The thimble is directed into the filtrate outlet so that the liquid passing therethrough has an ejector action on the gas in the thimble. In modifications the thimble is provided with baffles or with a ball valve. In the apparatus shown in Fig. 11 several rings 13 having small projections which leave spaces for the passage of gas are interposed between the filter element 2 and its support.
Patent GB-359260-A (GB)
Title: Air humidifier
IPC: F24F6/04
Filed: 1930-11-24
Abstract: 359,260. Moistening air. VEREINIGTE STAHLWERKE AKT.-GES., 67, Breitestrasse, D³sseldorf, Germany.-(Assignees of Killing, A. ; 39, Seydlitzstrasse, Horde, Dortmund, Germany.) Nov. 24, 1930, No. 35355. Convention date, Dec. 27, 1929. Drawings to Specification. [Class 55 (ii).] Air is moistened by passage over plates of kieselguhr or diatomaceous earth consisting mainly of kieselguhr. The kieselguhr is comminuted, mixed with pinewood dust or other substances which burn off, shaped into plates and fired. The porous plates are stacked in units in frames, stood in trays containing water, and enclosed in a perforated casing.
Patent GB-408066-A (GB)
Title: Adjustable height trolley for raising human bodies
IPC: B62B3/06
Filed: 1932-12-14
Abstract: 408,066. Hand trollies. LICENCE, A. S., 186, Mitcham Lane, Streatham, London. Dec. 14, 1932, No. 35422. [Class 108 (i).] A trolley particularly for use in the conveyance of human bodies in mortuaries &c. is provided with a table or platform which is adjustable in height and comprises a table 6 which is adjusted by means of crossed legs 15 engaging the table by means of rollers, the table being guided by means of rods 19 adapted to slide in bearings 20 carried by the spindle 21 connecting the pairs of crossed legs. The lower ends of the legs 15 are moved to raise or lower the table by means of a spindle 24 having right and left handed screw threads, the spindle being rotatable by means of ratchet 25 and pawls 27 from pedals 26. A pivoted flap 9 is provided for positioning the body container. 408,066.
Patent GB-471715-A (GB)
Title: Improvements relating to loom pickers
IPC: D03D49/36
Filed: 1936-12-24
Abstract: 471,715. Loom pickers. ETIENNE, J. Dec. 24, 1936, No. 35434. Convention date, Dec. 24, 1935. [Class 142 (iii)] The bores are of truncated shape at each end d with or without an intermediate cylindrical part h, and are of smaller diameter than the picker spindle g, whereby there is line contact as shown between the spindle and each of the conical portions. The bore may be formed by one or more sleeves a.
Patent GB-395589-A (GB)
Title: Improvements in devices for screening minerals and the like
IPC: B07B1/18
Filed: 1932-12-15
Abstract: 395,589. Sifting-apparatus. HISCOX, W. A., Newlands, Constable Drive, Littleover, near Derby. Dec. 15, 1932, No. 35516. [Class 117.] In rotary screens of the type comprising plates 11 arranged so as to form a substantially cylindrical screening surface with relatively small apertures 14 and inwardly directed plates with relatively large apertures 15 to act as a preliminary screen for eliminating the largest size materials, the plates are formed with holes 19 to pass the material from one section of the outer surface to the next. The holes are formed by stamping up a tongue of the metal of the plates in the direction of rotation of the screen.
Patent GB-849473-A (GB)
Title: Improvements relating to colour television transmitters
Inventor: PERCIVAL WILLIAM SPENCER
IPC: H04N11/14
Filed: 1955-12-10
Abstract: 849,473. Television. ELECTRIC & MUSICAL INDUSTRIES Ltd. Dec. 10, 1956 [Dec. 10, 1955], No. 35533/55. Drawings to Specification. Class 40(3). In a colour television transmitter radiating a signal, e.g. of the N.T.S.C. type, which includes a chrominance signal modulated on a carrier wave the frequency of which is close to the frequency of the carrier wave employed for radiating accompanying sound signals, audible interference produced in co-operating receivers during periods when (e.g. due to fault) the sound carrier is not radiated and caused by the reduction in attenuation of the audio frequency components of the chrominance signal due to the removal of the latter carrier and the cessation of control of the receiver A.G.C. circuit by the sound carrier, is prevented by an arrangement in which the absence of a radiated sound carrier at the transmitter is detected and employed to discontinue the radiation of the chrominance signal.
Patent GB-316833-A (GB)
Title: Improvements in and relating to variable speed gearing
IPC: F16H29/04
Filed: 1928-12-03
Abstract: 316,833. Laub, A. Dec. 3, 1928. Variable-speed ratchet gearing comprises a driving swash plate 6, which is tilted to vary the speed of a driven shaft 2 in line with the driving shaft 1 by moving a control member 25, which in its extreme position clutches the shafts 1 and 2 positively together. The swash plate 6 has a gear segment 28, Fig. 7, meshing with a segmental gear on a lever 27 which carries a pin 29 engaging a double cam slot 30 in the control member 25. When control member 25 is in the position of Figs. 1 and 2, the pin 29 is at the top of the right-hand horn of cam 30 and the swash plate 6 is perpendicular and is operative. When control member 25 is moved to the right to the position of Fig. 7, the plate 6 is gradually tilted and the ratchet mechanism drives the shaft 2 faster and faster. Continued movement of the member 25 brings it into clutch engagement with a toothed member 35 so as to effect a 1 to 1 drive. At the same time, pin 29 rides up the left-hand horn of cam 30 so as to bring plate 6 back to inoperative position with the ratchets at rest. This sliding of the member 25 is effected from a rock-shaft 31, Fig. 1. There are four connecting-rods 20, Fig. 3, which act in succession upon ratchets 12, Fig. 2, which are in two groups' connected by gearing 11, 10 to the shaft 2. Reversed driving is effected by reversing ratchets, which is done by turning wheels 42.