baber/WOPTO huggingface dataset:
Patent GB-783933-A (GB)
Title: Production of copolymers of chlorotrifluoroethylene and vinylidene fluoride
IPC: C08F214/22
Filed: 1955-10-03
Abstract: Homogeneous copolymers of chlorotrifluoroethylene and vinylidene fluoride are prepared by subjecting a mixture of the monomers to the action of gamma rays for a time sufficient to effect not more than 40 per cent polymerization.ALSO:Homogeneous copolymers of chlorotrifluoroethylene and vinylidene fluoride are prepared by subjecting a mixture of the monomers to the action of gamma rays for a time sufficient to effect not more than 40 per cent polymerization.
Patent GB-1421414-A (GB)
Title: Electric starter motor
IPC: F02N15/06
Filed: 1973-06-13
Abstract: 1421414 Internal combustion engine starters DUCELLIER ET CIE 13 June 1973 [8 Jan 1973]  28065/73 Heading F1K The invention relates to a starter for an internal combustion engine having an axially movable pinion 11 engageable with an engine gear 13 and an electromagnetic contactor 16 provided with a movable assembly comprising a threaded shank 19 which is connected to a bifurcated lever 25 by adjusting means. The adjusting means includes a spring 23 disposed in compression between the movable assembly and the flange 24 of a flanged tubular member which can slide freely on the threaded shank, the member being engageable with one face 25a of one end of the bifurcated lever in which end an engagement sleeve 29 can slide freely, axial adjustment of the sleeve relative to the threaded shank being effected by rotation of the sleeve on the threaded shank and the latter being prevented from rotating by energization of the electromagnetic contactor whereby adjustment of the axial movement of the pinion can be effected. The engagement sleeve 29 has a three stage bore, the first stage being smooth and having a diameter which is greater than the diameter of the threaded shank in order to ensure self centering of the sleeve on the threaded shank. The second stage comprises a screw thread in which the threaded shank screws and the third stage is smooth and of a diameter which is smaller than the outside diameter of the threaded shank whereby the third stage can be tapped by the threaded shank as the sleeve is screwed into position.
Patent GB-1519032-A (GB)
Title: Laminae and film handling apparatus
IPC: B65H1/00
Filed: 1975-07-03
Abstract: 1519032 Separating sheets H A H SPENCE BATE 3 July 1975 [11 July 1974 23 July 1974] 28100/75 Heading B8R [Also in Division G2] Apparatus for conveying photosensitive microfiches to a copy camera comprises a holder, for a plurality of microfiches, having inwardly extending edge-engaging means at one or opposed side walls for the top microfiche and means for urging the microfiches upwards and also comprises a microfiche-transferring suction device for initially attracting an area of the top microfiche remote from the engaging means and for withdrawing the top microfiche from the holder and conveying it to the copy camera. As shown, microfiche holder 10 has spring 15 and lips 11, and transferring device 1 (which supports one half of a microfiche) has successively evacuated chambers 2 and 3 spring 15 may be replaced by an external pusher having spring means (Figs. 6 and 19). The holder may have means to urge at least the top microfiche into a reference corner (Fig. 15). It may have a side microfiche inlet with a lighttight sleeve (Fig. 19), microfiche magazine (Fig. 24) or roll film/cutter device (Fig. 23). A light-tight cassette may be inserted therein (Figs. 16-18). Device 1 has vertical and horizontal conveying means. A similar closely spaced device (la, Fig. 1) enables pick-up, exposure, tilting and release without delay (Fig. 7). Three main platens and an auxiliary platen may be used instead of two platens (Figs. 8 and 8A). Device 1 may be replaced by one in which the second chamber has three successively evacuated sections (Fig. 5). Spring- retaining means (86, Fig. 5) may operate if the suction means fails. Completion of microfiche pick-up may be sensed for automatic operation. Examples of step-and-repeat mechanisms for the copy camera are also given (Figs. 11-14).
Patent GB-1447636-A (GB)
Title: Microwave modulators
IPC: H03C7/00
Filed: 1973-06-13
Abstract: 1447636 Amplitude modulators; TRAPATT oscillators PLESSEY CO Ltd 7 May 1974 [13 June 1973] 28152/73 Headings H3R and H3T A microwave modulator comprises a comcination 4 of a TRAPATT diode and a resonant circuit, a voltage supply arrangement 1 for reverse biasing the diode just below its threshold level of operation and also providing in addition modulator drive pulses having an amplitude adequate to trigger the diode into its operating mode, a delay line 5 for terminating the TRAPATT mode operation of the diode after a predetermined time interval. The output of an inverter 1 is rectified to provide D.C. bias for the TRAPATT diode and voltage spikes present on the D.C. bias and occurring at a frequency related to the inverter frequency act as modulation pulses to periodically trigger the TRAPATT diode. A pulse amplifier 2 provides an additional source of current to the diode. Although the diode may commence operation in an IMPATT mode, it soon changes over to the TRAPATT mode, which frequency is a sub-harmonic of the IMPATT frequency. A voltage drop at the input of the delay line 5 is reflected back in the same phase after a time period to reduce the input to the TRAPATT diode below its sustaining threshold. The capacitance of the delay line is then charged to raise the potential of line 3 to its normal level before the arrival of the next spike pulse. Fig. 3 (not shown) indicates in detail, a transistor inverter with feedback windings and a pulse amplifier.
Patent GB-463447-A (GB)
Title: Multiple draft drawing frame for jute, flax, hemp, sisal and the like fibres
IPC: D01H13/04
Filed: 1935-10-12
Abstract: 463,447. Multiple drawing-frame for jute, flax, hemp, &c. JUTE INDUSTRIES, Ltd., and BELL, F. J. Oct. 12, 1935, No. 28185. [Classes 120 (i) and 120 (iii)] A composite sliver is made from slivers of jute, flax, hemp, sisal, and like fibres by feeding a number of slivers f .. i, Fig. 2, through retaining rollers a, b, c, Fig. 1, gills or porcupines l, and drawing rollers m, n to a sliver plate o designed to permit the treated slivers to converge as a single sliver which is fed through a succeeding set or sets of retaining rollers p, q, r, gills s, and drawing rollers t, u driven at the speeds necessary to effect a continuous multiple drawing or drafting. The sliver plate o is formed with four slots o<1> .. o' inclined at 45‹ and the slivers f, g, h are diverted at right-angles into line with the sliver i. The slivers f, g pass under the plate o and are drawn on to the top over the slots o<1>, o<2> to meet the sliver h, the three slivers then passing downwards through the slot o<3> and up through the slot o<4> to meet the sliver i all four slivers then passing as a single strand through the members p .. v. The machine is preferably made in duplicate the second series of slots being inclined oppositely to the slots o<1> .. o<4>, while, if desired, the machine may be arranged to effect a treble drafting.
Patent GB-1168939-A (GB)
Title: Improvements in or relating to Sulphamides and the manufacture thereof
IPC: C07D211/08
Filed: 1968-06-13
Abstract: 1,168,939. N - Phenoxyphenyl - sulphonamides. UPJOHN CO. 13 June, 1968 [18 July, 1967], No. 28235/68. Heading C2C. Novel compounds I (including acid addition salts thereof) wherein X signifies halogen, C 1-4  alkyl or C 1-4  alkoxy, Y signifies halogen, R<SP>1</SP> signifies H, C 1-4  alkyl, 2 - piperidinoethyl, 3 - piperidinopropyl, 2 - pyrrolidinoethyl, 3 - pyrrolidinopropyl, 2 - morpholinoethyl, 3 - morpholinopropyl or dialkylaminoalkyl of the formula wherein R<SP>2</SP> and R<SP>3</SP> are the same or different and signify C 1-4  alkyl, Q<SP>1</SP> is piperidino, pyrrolidino, morpholino or an amino group, -NR<SP>4</SP>R<SP>5</SP>, wherein R<SP>4</SP> and R<SP>5</SP> are the same or different C 1-4  alkyl and either or both can also be H when R<SP>1</SP> is H or alkyl, m is 0, 1, 2 or 3, n is 0, 1 or 2 and k is 2 or 3, are obtained by the interaction of a sulphamoyl chloride, ClSO 2 Q<SP>1</SP>, and the appropriate phenoxyaniline or N-alkylated (C 1-4 )-derivative thereof followed, optionally, by alkylation of the products so obtained in which R<SP>1</SP> is H. Pharmaceutical preparations suitable for lowering cholesterol and triglyceride levels contain as active ingredient the above novel compounds and administration is orally or parenterally.
Patent GB-926635-A (GB)
Title: Improvements in hot water heating installations
IPC: F24H1/40
Filed: 1961-08-03
Abstract: 926,635. Steam generators; hot-water heating systems. H. VORKAUF. Aug. 3, 1961 [Aug 25, 1960], No. 28278/61. Classes 64 (1) and 123 (2). In a hot-water heating installation at least two similar drumless steam generators are connected to a common expansion vessel 1 which is fitted with a delivery pipe 3 and a return pipe 2 connecting it with the heating installation. The steam generators 4, 4<SP>1</SP> are connected respectively to the expansion vessel by pipes 5, 5<SP>1</SP>, and steam-water mixture pipes 6, 6<SP>1</SP>, which may be closed by the valves 7, 7<SP>1</SP> and 8, 81 respectively. The steam generators are constructed as watertube boilers with lower distributing headers 9 from which heated tubes 14 ... 18 are run to the upper collecting headers 19 . . . 21 and from which unheated downcomers 22, 23 return to the distributer headers, thus a large part of the circulation occurs within the generator unit and not via the expansion drum which is connected to the upper headers by the pipes 5, 5<SP>1</SP> and to the lower headers by the pipes 6, 6<SP>1</SP>, enabling the pipes 5, 6 and associated valves 7, 8 to be given small dimensions. In a modification, Fig. 2, the return water is conducted through a pipe 2<SP>1</SP> to a collector header 24 of the steam generator, thence to the expansion vessel. The header 24 is connected by pipes 22<SP>1</SP>, 25 to the upper collecting headers of the steam generator. This arrangement permits further reduction to be made in the size of the pipe 6 and very little water need be supplied through the pipe 5. In a further modification the return water from pipe 2 is led through the tubes of an indirect heat exchanger arranged in the header 19 and thence to the expansion vessel 1. In order to promote circulation from the steam generators 4, 4<SP>1</SP> to the expansion vessel 1 on installations where the tins are remote, a bleed line is arranged from the pressure side of a pump in the supply pipe 3 and led into the downcomer line 5 and arranged to enter the same in the form of a suction nozzle as in a steam injector.
Patent GB-319248-A (GB)
Title: Improvements in the manufacture of brake segments or blocks
IPC: F16D65/08
Filed: 1929-09-18
Abstract: 319,248. Soc. de MÚcanique AppliquÚe Ó l'Automobile. Sept. 18, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Addition to 302,233. Blocks and shoes.-Brake shoes more particularly such made in the manner described in the parent Specification, have attached to the ends, as by welding, plates 5 which may directly take the pressure of the operating cam or additional plates 15 for this purpose may be attached as by screws to the plates 5. Instead of the plates 5, plates 17, Fig. 5, may be riveted or welded to the web 1 of the segment to form a fork for a roller 16. Tubular pieces 18<a> or half tubes may be welded to the shoes for mounting them. Slots in the form of those of bayonet joints may be provided in the web 1 of the shoes for the attachment of the springs. The shoes may be formed by two angle-irons secured together by riveting or welding, before or after bending, so as after manufacture to be either of T-shape, Fig. 8, or of U-shape.
Patent GB-431768-A (GB)
Title: Improvements in and relating to the manufacture of glass-like substances
IPC: G02B1/04
Filed: 1933-10-13
Abstract: Styrol is polymerized in the presence of substances preventing the crystallization of the solid polymerized body such as sulphur, sulphur monochloride and chlorinated hydrocarbons such as diphenylchloride.ALSO:Compositions containing polymeric styrol and substances preventing the crystallization thereof such as sulphur, sulphur monochloride and chlorinated hydrocarbons such as diphenyl chloride are used in the manufacture of optical elements.
Patent GB-519706-A (GB)
Title: Improvements in or relating to high pressure steam boilers for indirect generation of steam
IPC: F22B1/12
Filed: 1938-09-29
Abstract: 519,706. Indirectly heated steam boilers. SCHMIDT'SCHE HEISSDAMPF GES. Sept. 29, 1938, No. 28356. Convention date, Sept. 29, 1937. [Class 123(ii)] In a high pressure boiler heated by indirect contact with steam, tubular steam separators are connected directly with the individual tubes of both the primary and secondary boilers or with tubes into each of which the steam and water mixture from a group of generating tubes is delivered. A primary boiler for the heat carrier comprises tube units 8<1> each connected to separators 10 discharging into a heater 11 whence the steam passes to a large number of evaporators 1 constituting the secondary boiler, condensate being returned through pipes 16 to the primary boiler. Feedwater is supplied to heaters 5 of the secondary boiler from a container 4 and passes through groups of tubes 3 in each of the evaporators 1 and thence through heaters 7 and pipes 18 to separators 17 connected to a drum 20. Separated water returns from heaters 7 and drum 20 to the inlet heaters 5. A form of separator comprises concentric pipes opening into separate compartments of a heater with the inner pipe perforated along its length so that steam passes through the annular space into one compartment and water is carried through the wire tube into the other.
Patent GB-1427593-A (GB)
Title: Forming a print-out image
IPC: G03F7/025
Filed: 1973-06-14
Abstract: 1427593 Amplifying print out images EASTMAN KODAK CO 14 June 1973 [14 June 1972] 28363/73 Heading G2C A method of amplifying a coloured print out image, produced by imagewise exposure of a material having a layer containing a crystalline compound with at least 2 conjugated acetylanic linkages, by uniformly exposing the image to radiation which is absorbed by the image whilst applying an electrical potential across the layer. Preferably, the imagewise exposure is to ultravoilet or electron beams and the uniform exposure is to visible light. The material preferably comprises a transparent support on which is deposited an electrically conductive metal layer and then the layer containing the compound so that the uniform exposure is conducted through the support whilst a potential of 50-1500 watts is applied using a metal electrode placed on the sensitive layer . The acetylenic compound may be one of those listed in Specification 1154191 and 1161624 and may be applied alone or with a binder.
Patent GB-192154-A (GB)
Title: Attachment for rings for curtains and the like
IPC: A47H13/02
Filed: 1921-10-26
Abstract: 192,154. Cundy, J. A. Oct. 26, 1921. Curtains, suspending.-A curtain-ring attachment for suspending a curtain and supporting in an upright position ornamental trimmings &c., comprises in the form shown in Figs. I and II a short metal V-shaped channel to which are attached the wires for supporting the curtain. The lower wire is bent as shown to pass through the curtain-ring eye. A second upper arm may be provided as shown in Fig. II. Fig. IV shows a modification formed by stamping a single piece of metal. In both modifications the weight of the curtain causes the attachment to be locked in engagement with the ring.
Patent GB-388474-A (GB)
Title: Improvements in or relating to mountings for fuses for overhead electrical cables and apparatus for the moving and placing of such fuses
IPC: H01H85/20
Filed: 1931-10-13
Abstract: 388,474. Fusible cut-outs. AYLOTT, H. J., c/o Christy Bros. & Co., Broomfield Road, Chelmsford, Essex. Oct. 13, 1931, No. 28469. [Class 38 (i).] An overhead fuse 26, 27 is mounted in a vertical position between brackets 13, 18, to the lower of which is fitted a guide 20 to locate a tool employed to remove and insert the fuse. The lower contact 29 of the fuse cartridge has a shoulder 37 which rests upon springs 22 forming the lower fixed contact. The tool for manipulating the fuse consists of a cylinder 42, Fig. 3, mounted on a pole 41. The cylinder fits over the contact 29, opens the springs 22 and withdraws the fuse by means of a spring catch 47 that enters a groove 39 in the contact 29. When inserting the fuse, a pin 52 is inserted in holes 53 so that the cylinder 42 will carry the fuse but the catch 47 is inoperative. The upper contact 30 of the fuse is rounded so as to be guided by a hollow cone 14 into position to engage, a recessed spring 17 forming the upper fixed contact.
Patent GB-1397463-A (GB)
Title: High temperature gas cooled nuclear reactor
IPC: G21C5/16
Filed: 1972-06-19
Abstract: 1397463 Moderator structures UNITED KINGDOM ATOMIC ENERGY AUTHORITY 2 May 1973 [19 June 1972] 28684/72 Heading G6C A prismatic block 1 of moderator material, e.g. graphite, for use with similar blocks in forming a core for a high temperature gascooled reactor, has end faces shaped as irregular hexagons with three long sides a of equal length and three short sides b also of equal length, one short side being disposed between each pair of adjacent long sides, which long sides are inclined at 60 degrees to one another, the block 1 defining a plurality of coolant channels 7 disposed parrallel to the sides of the block. Nuclear fuel in the form of fuel pins or fuel compacts (not shown) is disposed in at least some of the channels 7. Alternatively, the fuel may be disposed in bores formed between adjacent channels 7. The reactor core comprises a plurality of vertical columns composed of prismatic blocks 1 arranged in groups of six each surrounding a smaller moderator block 2 which is hexagonal in plan and is pierced by a single axial hole 3 for receiving a reactor control rod. Protuberances 5 on the flanks of the blocks 2 engage in recesses 6 in the shorter sides of the six blocks 1 which surround it. A central hole 8 is provided in each block 1 for engagement by a remote handling tool . Closable refuelling standpipes 9 are positioned coaxial over one third of the control rod columns formed by the blocks 2. These standpipes are disposed on a triangular lattice and when projected on to the core, overlap a part of each of the six blocks 1 contiguous with the adjacent control rod column. Through each standpipe 9 the underlying control rod blocks 2 can be lifted to be replaced, and the blocks 1 from any one of six columns can also be replaced by means of a rigid cranked shaft carrying a grapple adapted to engage in a hole 8. The control rod columns which do not coincide with refuelling standpipes 9 lie beneath further, smaller diameter standpipes 10.
Patent GB-1006648-A (GB)
Title: Method and apparatus for maintaining and adjusting cutter knife clearance in cuttingtools
IPC: B23D35/00
Filed: 1964-07-10
Abstract: 1,006,648. Shearing. WEST VIRGINIA PULP & PAPER CO. July 10, 1964 [July 24, 1963], No. 28708/64. Headings B3B and B3W. [Also in Division B4] A method of maintaining a desired cutter knife clearance in a cutting tool, e.g. a metal cutting machine comprises maintaining cutter knife supporting elements at a selected substantially constant temperature independently of ambient temperatures and of temperatures due to operation of the cutting tool. In the form shown, pedestals 16, 17, which carry the bearings 14 supporting the journals 12 of a rotary cutter drum 10, are provided with electrical heaters 35 to 38 and temperature sensing bulbs 40, 41 connected by electrical conductors 42 to 44 and 46 to 48 with temperature controllers 45, 49 in turn connected by electrical conductors 50, 51 with a temperature indicator unit 52. Changes in knife clearance may be made by raising or lowering the set temperature of the pedestals. A fly knife 26 mounted in the drum co-operates with an adjustable stationary bed knife 28. Alternatively, the bed knife may be rotated. Means may be provided for cooling rather than heating the pedestals.
Patent GB-187967-A (GB)
Title: Improvements in two-stroke cycle internal combustion engines
IPC: F02B33/12
Filed: 1922-10-23
Abstract: 187,967. Billard, R. Oct. 25, 1921, [Convention date]. Valves; valve-gear.- The front end of the cylinder is used as an air or mixture pump, the inlet 7 and delivery 8 being controlled by a cylindrical slide valve 5 reciprocated by the connecting-rod 3. The rod passes through the circular block 4 in the valve, and the valve slides in the base plate 6 which closes the cylinder end. Regulating. - A rod 10 on the valve strikes a lever 11, which works the liquid fuel pump 12. The position of the lever can be adjusted by the cam 15.
Patent GB-1247588-A (GB)
Title: Metal oxides
Inventor: CHAMBERLAND BERTRAND LEO
IPC: H01C7/04
Filed: 1969-06-06
Abstract: 1,247,588. Modified vanadium dioxide; metal vanadates. E. I. DU PONT DE NEMOURS & CO. 6 June, 1969 [6 June, 1968], No. 28838/69. Heading C1A. [Also in Division H1 Novel compounds having a formula where M is at least one metal selected from ruthenium, iridium, rhodium, rhenium, osmium, indium, thallium, arsenic, hafnium, or zirconium and where x lies between 0À005 and 0À2 are claimed per se. They may be prepared by reaction of a vanadium oxide (V 2 O 3 , V 2 O 4  and/or V 2 O 5 ) with the metal M or its oxide under non- oxidizing conditions and preferably at 800- 1000 C. and at 20-65 kilobars pressure for a period of not more than 24 hours. Alternatively the metal vanadate, MVO 4 , may be reacted with the oxide, V 2 O 4 , preferably at 900- 1200 C. Either reaction may be carried out in an evacuated vessel, under an inert atmosphere, or in the presence of water. In the latter case a pressure of 2-3 kilobars and a temperature of 500-700 C. is preferred.
Patent GB-1058519-A (GB)
Title: Cheese tub
IPC: A01J25/06
Filed: 1965-07-07
Abstract: A cheese tub, in which milk is curdled and the thus formed curd is then cut for withdrawal of the liquid whey, comprises semi-cylindrical trough, and a carriage adapted to move to and fro in the longitudinal direction of the trough, on the upper rim thereof, the carriage supporting a cutting lattice, with cutters movable along said lattice, and stirring means, which cutting or stirring means may be moved at choice into an operative position extending over the full lateral cross-section of the trough.
Patent GB-213299-A (GB)
Title: Improvements in corsets
IPC: A41F1/04
Filed: 1922-10-24
Abstract: 213,299. Camp, S. H., (trading as Camp & Co., S. H.). Oct. 24, 1922. Corsets.-A corset of the type which is quickly adjustable by pulling on tensioning members to tighten the lacing is made in two parts connected by the usual lacing E, and is, in addition, provided with lacing F attached by tabs H to slides K. Adjusting straps L are attached at one end to reinforcing members M and pass through the slides K, and keepers L<2>. The free end L<3> of the straps serve for grasping. The tabs H are provided with eyelets for the lacing and these eyelets may be masked by facing strips.
Patent GB-295866-A (GB)
Title: Improvements in smokers' pipes, and the like
IPC: A24F3/02
Filed: 1927-11-01
Abstract: 295,866. Lotinga, A. W. Nov. 1, 1927. Tobacco pipes. - A strip of stainless steel or aluminium 2 is inserted in the pipe bore. In the middle its width is greater to enengage a transverse slit in the mouthpiece, and to form a scraper for the chamber 5a. The parts occupying the bore proper may be corrugated or spiral.