baber/WOPTO huggingface dataset:
Patent GB-872982-A (GB)
Title: Portable bookrest
IPC: B42D3/12
Filed: 1959-02-06
Abstract: 872,982. Books; bookmarkers. SILVERMAN, E. B. Feb. 6, 1959 (Feb. 14, 1958], No. 4231/59. Classes 16 and 146(1). A book rest for supporting a book for reading purposes in inclined position on a horizontal surface, and adapted to be collapsed into a flat condition and folded between the book covers, is made of foldably and permanently connected panels including a folding rib structure which acts as a rigid compression structure. As shown in Fig. 1, there are two rests or supports A and B, the one being a "mirror image" of the other, and each can be folded flat beneath the respective book cover, as shown in Fig. 2. Each support A, B is attached to the inside of the respective book cover 80 or 82 and the fly-leaf by panels 22 (not shown) and 23, and in the case of the loose leaf book shown in Fig. 6, the panels are provided with perforations which are engaged by the filing rings or posts. Each support is made from two sheets of stiff two-ply paper or of thin sheet metal which are glued or secured together along particular fold lines. Some of the fold lines in the support may be reinforced by strips of linen or flexible plastic material, and the fold lines between panels such as 58, 63, 64, which form the compression members of the folding rib structure, may be reinforced by thin wire. Two panels 39, 40 are, interlocked and serve to lock the compression members of the folding rib structure when the support. is in use, and as a gripping means whereby the entire support can be pulled from the folded position, shown in Fig. 2, to the erected position, shown in Fig. 1. Two further book rests or supports are described wherein the number and shape of the panels are modified, and wherein tabs are provided to facilitate erection thereof, and rubber bands serve to fix the erectedposition of certain panels. Bookmarkers : -A J-shaped piece of wire 84, Figs. 6 and 7, may be attached by tabs to the inside of the book cover, or to the panel 23 of one book support, so that it can be rotated and slid outwardly to engage the pages of the opened book to hold them in position.
Patent GB-249288-A (GB)
Title: Improvements in or relating to endless-track vehicles
IPC: B62D55/06
Filed: 1925-02-16
Abstract: 249,288. Whitaker, D. Feb. 16, 1925. Endless-track vehicles. - In an endless-track tractor, crane, excavator or the like. the main or vehicle frame is rigidly secured to the endless-track or truck frame at one side of the vehicle and is so connected to the truck frame on the other side that it can rock on that frame. In the construction shown the main frames 15 is fixed at two points 16 to one truck frame 1 and is pivoted at 19, Fig,. 3, to the other truck frame 1<a>. The connection between the frames 15, 1<a> can -be made rigid when desired, by means of screws 22 which work in nuts 20 on the truck frame 1<a> and can be made to engage the main frame, thus stopping all movement about the pivot 19. The ends of the truck frames are connected together by cross-ties 35, pivoted at 37 to the frame 1 and having pin-and-slot connections 38 with the frame 1<a>. The driving sprockets 2 of the tracks 3 are driven from independent shafts 31 each driven through a clutch and gearing from a driving shaft 26 concentric with the pivot 19. The idler sprocket 2 is adjusted by means of screws 11 for tensioning the track.
Patent GB-960192-A (GB)
Title: Vapor phase coating of textile fibers using ionizing radiation and resultant products
IPC: C08F2/54
Filed: 1962-02-05
Abstract: Polymeric substrates containing active hydrogen atoms are coated by irradiating them, in contact with an oxygen-free gas carrier containing water-vapour and a vaporized vinylidene monomer, with ionizing radiation sufficient to induce the formation of free-radicals on the substrate, continuing to irradiate the substrate-vapour mixture until a layer of polymerized monomer has formed on the substrate, and then separating the coated material from unadherent polymer. Substrate polymers specified are fibres of cotton, wool, rayon cellulose acetate, vinylidene chloride polymer, nylon and polypropylene.  Monomers specified are vinyl formate, acetate, propionate, butyrate, 2-ethylhexoate and crotonate, ethyl, butyl, 2-ethylhexyl, glycidyl and ethylpyridylethyl acrylates, methyl and butyl methacrylates, acrylic and methacrylic acids, acrylonitrile, mono-, di- and tri-allylamine, divinyl sulphone, vinyl ethoxysilane, ethylene, propylene, styrene and N-vinyl-pyrrolidone. The carrier gas may be nitrogen.  As ionizing radiation there may be used gamma-rays from cobalt-60 source, beta rays or high-energy electrons.  The examples describe the grafting of acrylonitrile on to cotton, silk, and fibres made from cellulose acetate, rayon, nylon, polyvinylidene chloride, polyester and polyacrylonitrile.  Cotton fibres so treated are stated to be mildew-resistant.  Specification 960,191 is referred to.  Reference has been directed by the Comptroller to Specifications 834,557, 850,446 and 863,211.
Patent GB-534550-A (GB)
Title: Improvements in or relating to soundheads for reproducing sound from photographic film sound records
IPC: C25B11/12
Filed: 1940-03-07
Abstract: 534,550. Kinematograph projectors. RADIO CORPORATION OF AMERICA. March 7, 1940, No. 4305. Convention date, March 31, 1939. [Class 97 (i)] [Also in Group XXXVIII] The gear unit of sound film apparatus associated with a kinematograph projector is carried by a plate 24 and is detachably mounted in the soundhead casing 10 by screws 27. The plate 24 has faced bosses 25 around the screw holes abutting faced bosses 26 on the centre plate 11 of the casing to ensure correct alignment. The centre plate 11 has an aperture 46 to allow the insertion and removal of the gearing. The gearing comprises a worm gear 35 on the motor shaft 36 in mesh with worm wheel 33, 34 on the shafts 22, 23 of the sprocket drums 20, 21. In addition, a gear wheel 43 keyed to the shaft 43 meshes with a gear 39 fast with a gear 40 and a pulley 41 and rotatable on a fixed stud shaft 38 in line with the shaft 22. The gear 40 transmits motion to a projector above the soundhead in the usual way, and the pulley 41 drives the take-up reel (not shown). The worm gearing 33, 34, 35 is enclosed in a box 30 fed with oil through an oil level indicator 48. The film F travels in the usual way around the speed stabilized sound gate 13, and the sprocket drums 20, 21 with a permanent slack between the sprocket drums.
Patent GB-592316-A (GB)
Title: Improvements relating to the manufacture of electric condensers
IPC: H01G2/20
Filed: 1945-02-22
Abstract: 592,316. Condensers. BRITISH THOMSON - HOUSTON CO., Ltd., and KNIGHT, H. DE B. Feb. 22, 1945, No. 4447. [Class 37] Condensers comprise metal electrodes and ceramic di-electrics having a rim extending beyond the electrode edges, wherein a glass layer surrounds and forms a hermetic seal@ around the extended rim and at least the edges of the electrodes. The outer electrodes 22 may be covered with ceramic cover plates 23 each having centre holes for the electrode leads 24, the edges of the assembly being then encased in a glass layer 25, the leads being sealed and fixed to the cover plates by glass beads 26. Specifications 551,139 and 592,038, [Group XXIII], are referred to.
Patent GB-694434-A (GB)
Title: Improvements in or relating to pan mills
IPC: B02C15/00
Filed: 1950-02-21
Abstract: 694,434. Pan mills. FOUNDRY EQUIPMENT, Ltd., and BEECH, A. S. Feb. 5, 1951 [Feb. 21, 1950], No. 4464/50. Class 59 A pan-mill, particularly for rubbing foundry sand, comprises a pan 16, Fig. 3, with a flat bottom and an outwardly sloping wall 17, rotatable on a base 19, one or more mullers 29 rotatable on a shaft 27 which spans the pan and is slidable vertically while being held against rotation with the pan, and a plough 18, Fig. 1, adapted to be lowered into the pan to discharge treated material over the edge thereof. The pan is rotated from beneath by a motor driving through belts and a worm reduction gearing to a spindle 15, Fig. 3, and has a guard 20 over its edge. Flats 28 on the shaft 27 are engaged by guide plates 25 backed by resilient cushions and supported in members 23 carried by the base 19. Additional plates 32 in the members 23 and backed by resilient cushions 31 support the shaft 27 so that the mullers 29 are spaced from the bottom of the pan. The shaft 27, carrying the mullers and brackets 33 supporting scrapers for the mullers, can be removed from the mill after first removing end plates 36 from the members 23. Bridge members 40, 41, Fig. 1, parallel to the shaft 27 and attached to the guard 20, support members 21, 45, which act to deflect material down the side wall 17 to the bottom of the pan, and members 48, 49, 52, 53 serving to plough the material and prevent it from caking, the latter members being adjustable vertically. An additional deflector 56 is secured to the under-side of one of the brackets 33. The plough 18 is carried by rods 65, 66 bearing in a bracket 60 on the bridge-member 41 and formed with rack-teeth which are engaged by pinions on the shaft 61 of a handwheel 62 operable to raise or lower the plough. The latter directs the material into a shoot 22 attached to the guard 20 from which it may be delivered to a conveyer or the like.
Patent GB-285484-A (GB)
Title: Improvements in tents
IPC: E04H15/28
Filed: 1928-02-13
Abstract: 285,484. Nilsson, E. A. E. Feb. 19, 1927, [Convention date]. Tents.-A tent comprise: a domed roof portion and side walls constituting a single connected structure, and the roof portion is fitted with radial spring ribs 2, which are connected at their inner ends to a collar 4 slidable upon the central pole 3 and at approximately their middle parts to ties 11 secured to the projecting upper part of the pole. Each tie 11 extends between a pair of ribs 2, and a cap 12 is provided at the top of the pole. In erecting the tent, the sleeve 4 is pulled downwards by cords 18, 20 and chain 19 so that the ribs and fabric are extended, and the chain 19 is fastened over a projection on the pole. The tent pole 3 is of telescopic form. The Specification as open to inspection under Sect. 91 (3) (a) also describes the application of the invention to tents of tunnel shape, the ribs 2 being disposed in parallel formation on a rod 21, Fig. 7 (Cancelled), which is supported on the top of the central pole 3. This subject-matter does not appear in the Specification as accepted.
Patent GB-101123-A (GB)
Title: A New or Improved Box, Case or other Receptacle for Money, Pencils or other Small Articles.
Inventor: LIEBERT HENRY
IPC: A45C11/00
Filed: 1916-03-27
Abstract: 101,123. Liebert, H. March 27, 1916. Locks, permutation.-A box, case, or other receptacle for money, pencils or other small articles consists of a receptacle a, Figs. 1 and 5, the exterior of which is provided with one or more annular grooves b and a longitudinal groove c which crosses the groove b, and of a casing e, Fig. 1, which fits on the receptacle a. The casing e consists of one or more rotatable rings f, each of which is marked on the outside with characters and has in its interior a pin g adapted to slide in the groove b, c. Thus the box can only be opened when the pins g are in line in the groove c, i.e., when certain characters on the rings and on the ends of the box are in line. Each of the rings f is formed with an external groove i and an internal groove h and each of the externallygrooved ends is formed with slits so that another ring can be sprung on to it.
Patent GB-438498-A (GB)
Title: Improvements in and relating to rectifier installations
IPC: H02M7/00
Filed: 1934-02-10
Abstract: 438,498. Rectifying alternating current. AKT.-GES. BROWN, BOVERI, & CIE, Baden, Switzerland. Feb. 10, 1934, No. 4504. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 24, 1934]. [Class 38 (ii)] In rectifier installations in which a number of rectifiers 2, 2<a> are fed from a common transformer 1, the anode choking coils for each pair of rectifiers are arranged in a common oil box 3 disposed between the two rectifier cylinders and containing also the anode bus-bar system.
Patent GB-428111-A (GB)
Title: Improved collector for electric current
IPC: B60L5/20
Filed: 1934-02-12
Abstract: 428,111. Current - collectors for electric vehicles. BOLTON & SONS, Ltd., T., Hutchison Street, Widnes, Lancashire, ALKINS, W. E., 16, West End Avenue, and CARTWRIGHT, W., 153, Burton Street, both in Leek, Staffordshire. Feb. 12, 1934, No. 4542. [Class 104 (iii)] Current-collectors are made from an alloy of copper, nickel and silicon, preferably in the proportions of 96 per cent copper, 3 per cent nickel, and 0À75 per cent silicon.
Patent GB-187539-A (GB)
Title: Improvements in centrifugal fans
IPC: F04D29/28
Filed: 1922-02-16
Abstract: 187,539. Haynes, E. S. P., and Wood. E. S., (Representatives of Capell, G. M.). Feb. 16, 1922. Shallow-overhung-blade fans.-Modifications of the constructions described in Specifications 17171/08 and 17919/14 comprise curved main vanes c<1>, c<2>, oppositely-curved tail blades e at the rear of the main vanes, passages formed in the main vanes c<2> to allow fluid to pass between the main vanes c<1> and the tail blades e, and intermediate vanes g extending from the periphery of the wheel towards the eve. The intermediate vanes g are curved in the same sense as the main vanes c<1>, c<2>. In a further modification there may be two or more such intermediate vanes in each group, those nearer the tail blades e extending further into the eye of the fan. In this modification also the portions of the main vanes carrying the scoops d may be set back behind the tail blades to deliver air directly on to the tail blade and assist in the propulsion of the fan. The intermediate blades g adjacent to the tail blades also produce this effect.
Patent GB-1273681-A (GB)
Title: Improvements in mould-closing means
Inventor: CYRIAX WILHELM
IPC: B29C45/67
Filed: 1970-01-30
Abstract: 1,273,681. Injection mould closing devices. W. CYRIAX. 30 Jan., 1970 [6 March, 1969], No. 4602/70. Heading B5A. [Also in Division B3] A mould closing device comprises at least two piston-cylinder units 8, 9 attached to a stationary mould carrier plate 2 or to a stationary end plate 6 for moving a mould carrier plate 7, a mould closing pressure device 17, 18 (Fig. 2) connecting the plates 6 and 7 only during the moulding operation and a pressure piece consisting of two parts, one part 10 being mounted on the movable plate 7 and the other part 12 on the end plate 6, and at least one part of the pressure piece is variable in length and is transversely displaceable on a support that carries it. In the example shown in Fig. 2 the part 12 is movable into and out of line with the part 10 by means of a piston-cylinder unit (19), Fig. 1 (not shown), the length of the part 12 being variable by means of a screw threaded portion 13. An ejector plate 23 is actuated by an hydraulic ram 22 within the part 10. In Figs. 3, 4 (not shown) both parts of the pressure piece include screw-threaded adjustable portions. In Figs. 5, 6 (not shown) the mould closing pressure device (26) is also movable transversely. In Fig. 7 both parts of the pressure piece 12, 13 and 24, 25 are movable transversely by means of piston-cylinder devices 19, 119 respectively. In this embodiment the mould 20, 21 is eccentrically arranged.
Patent GB-944774-A (GB)
Title: A device to increase the rate of flow of smoke or gases from a chimney
IPC: F23L17/02
Filed: 1962-02-07
Abstract: 944,774. Chimney tops. S. DICKINSON. Feb. 7, 1962, No. 4622/62. Heading F4J. A chimney mounted smoke-extracting device comprises two frusta interspaced with baffle plates defining upwardly convergent air channels characterized in that the air channels do not enter the flue. The frusta 1 and 3 are concentrically positioned and define together with the vertical equally-spaced baffle plates 2 upwardly convergent air channels. The top edges of both the frusta and the baffle plates lie in a horizontal plane. The device is fixed to an existing chimney by means of a cylinder 6 or it may be incorporated in the manufacture of a chimney.
Patent GB-490534-A (GB)
Title: Improvements relating to the heating of rooms
IPC: F28D1/02
Filed: 1937-02-16
Abstract: 490,534. Radiators for heating buildings. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. Feb. 16, 1937, No. 4659. Convention date, June 11, 1936. [Class 64 (ii)] Air is drawn into a room at the lower part of a radiator 5 through passages 11 which direct the air upwards along the face of the radiator. In a sectional radiator, the middle sections are formed with hollow lateral projections enclosing J-shaped passages 8 communicating with an air inlet 9. The entrance of air may be controlled by a shutter 13.
Patent GB-927433-A (GB)
Title: Improvements in machines for moulding concrete and other materials requiring compaction
IPC: B28B1/087
Filed: 1959-05-07
Abstract: The subject-matter of this Specification is identical with that of Specification 927,432 but the claims relate to the mechanism for ejecting the moulded article.
Patent GB-1207491-A (GB)
Title: Improvements relating to transmission line systems
Inventor: BARLOW HAROLD EVERARD MONTEAGL
IPC: H01B11/14
Filed: 1966-10-07
Abstract: 1,207,491. Waveguides; co-axial liners. H. E. M. BARLOW. 6 Oct., 1967 [7 Oct., 1966, 1 Feb., 1967], Nos. 45014/66 and 4818/67. Headings H1A and H1W. A decrease in attenuation is effected by increasing the surface reactance of one of the conductors of a two-conductor transmission line. Such treatment promotes wave propagation in a hybrid mode which is partly a TEM mode and partly a surface-wave mode having the configuration shown. It is stated that the surface reactance may be so chosen that the zero of the electric field approaches one of the conductors very closely and that, under these conditions, the attenuation approaches a minimum. As shown, the inner conductor 1 is coated with a material of high dielectric constant e.g. TiO 2 . The material may be in powder form and may be contained within a thin dielectric envelope. The surface reactance may alternatively be increased by grooving one of the conductors. The invention may be applied to A.C. power lines using two parallel conductors. The surface reactance of one of them is increased by covering it with annular beads of ferrite.
Patent GB-1070884-A (GB)
Title: Hoisting sling
Inventor: RODGERS LEONARD JOHN
IPC: B66C1/62
Filed: 1965-02-04
Abstract: 1,070,884. Lifting cradles. ROLLS-ROYCE Ltd. Jan. 28, 1966 [Feb. 4, 1965], No. 4863/65. Heading B8H. A lifting cradle comprising radial arms 11 is connected to a gas-turbine engine 17 by turning members 14 about pivots 13 so that projections 15 engage holes 16. Pins 18 lock the members 14 in engaged position and stopbars 21 prevent excessive rotation. A guide rod 23 facilitates alignment of the cradle with the engine. The members 14 may be pivoted so as to move inwardly to engage holes 16 rather than outwardly. A hoist-engaging ring 22 may be replaced by a slide or roller which runs on an arcuately curved guide such as is described in Specification 1,070,883.
Patent GB-1076142-A (GB)
Title: Manufacture of bis-phenols
Inventor: HARPER DONALD
IPC: C07C37/20
Filed: 1964-02-05
Abstract: Substantially pure bis-1:1-(21-hydroxy-31:51-dimethylphenyl)alkanes are obtained by reacting a 2:4-dimethylphenol containing dialkylphenols in which the alkyl groups are not in the 2 and 4 positions wit an aliphatic aldehyde containing between 7 and 12 carbon atoms in the presence of a catalyst and treating the crude product with a solvent consisting of an alcohol, an alkyl ester, an aliphatic, cycloaliphatic, aromatic or olefinic hydrocarbon, a chloro-substituted derivative of such a hydrocarbon or a mixture of any number of such solvents.  The products are useful as anti-oxidants for natural and synthetic rubbers. Examples are furnished.
Patent GB-477240-A (GB)
Title: Improvements in or relating to thermionic valve circuits
IPC: H03F1/36
Filed: 1937-02-19
Abstract: 477,240. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. Feb. 19, 1937, No. 5031. Convention date, May 16, 1936. [Class 40 (v)] To reduce parasitic noise in amplifiers for very weak currents, such as television amplifiers, the resistance in the circuit of the photoelectric cell is chosen of extremely high value, and the consequent reduction in amplification of the high-frequency signal components is compensated by the provision of a negative feed-back circuit. In the Figure, the series resistance Rg for the photo-cell CP is made large, e.g. 10 to 100 megohms, and in consequence the high-frequency signal components would be reduced by the parasitic capacity C. This is prevented by inserting a feed-back resistance Rf between the anode and grid of the valve TV1, the product of Rf and the anode-grid capacity Cag being equal to the product of Rg and C. The anode resistance Ra is also large and the frequency-discriminating effect of its parasitic shunt capacity Ca is overcome by inserting in the coupling to the next valve TV2 a resistance-capacity unit Rc, Cc of the same time constant. The valve grids are biassed to prevent grid current from flowing. When a wide band of frequencies is comprised in the signal, the lowest frequencies may be suppressed or separately handled. Specification 436,734 is referred to.
Patent GB-291140-A (GB)
Title: Improvements in power transmission and reversing gearing
IPC: F16H3/60
Filed: 1927-02-23
Abstract: 291,140. Onions, R., and Ruston & Hornsby, Ltd. Feb. 23, 1927. Reversing-gearing. -Relates to reversing-gearing af the type in which for forward driving a clutch such as 7 locks an epicyclic train solid, and in which for reversed driving a brake such as 17 is applied to the carrier drum 16 of planet gears such as 14, 15. Control is effected by a short rock shaft 19 secured to hand lever 36 and carrying an arm 21 for tightening the brake band 17. A crank arm 31 fast on the end of the shaft 19 is connected by a link 30 to a swing bar 26 which operates the clutch 7 by way of a lever 34. The neutral position is shown in Fig. 3. The end 27 of the bar 26 is guided by a cam plate 23 fast to the gear frame 22. When the bar 26 is moved to position r, the brake is applied, the clutch not being affected. When moved to position f, the clutch alone is operated. The driving-shaft 1, Fig. 1, is bored axially at 37 with an extension 38 of smaller diameter with radial holes 39, 62 to carry oil into the gearing and into the bearings of a driven pulley 5, respectively. An oil tube 51 fixedly supported at its outer end by a bracket 53 is open at its inner end 59 and supported near that point upon a bush 58 past which oil can leak to the wide hore 37. Oil throwing rings 48 are provided in the gear casing.. Oil is prevented from reaching the clutch 7 by a catcher 65 of channel section having one or more drainconduits 66 leading out clear.
Patent GB-525206-A (GB)
Title: Improvements in and relating to catches for the doors of cabinets, cupboards and forlike purposes
IPC: E05C19/06
Filed: 1939-02-16
Abstract: 525,206. Door catches. DRISCOLL, J. J. Feb. 16, 1939, No. 5109. [Class 44] A yielding catch for cabinet or other doors comprises a U-form spring member 1 having one limb secured to the frame 3 and carrying at its free end an antifriction roller 6 adapted to be engaged by a shouldered member 15 of spring metal secured to the door 9 by screw 14 and struck-up spike 12. Member 1 is mounted by means of a spike 2 and screw 7 passing through both limbs as shown and serving to adjust the free limb. The antifriction roller may be of cylindrical or ball form, or may be replaced by a curled end to the free limb.