baber/WOPTO huggingface dataset:
Patent GB-744018-A (GB)
Title: Improvements in or relating to travelling wave tubes
IPC: H01Q11/08
Filed: 1953-08-14
Abstract: 744,018. Travelling wave tubes. STANDARD TELEPHONES & CABLES, Ltd. Aug. 14, 1953 [Aug. 19, 1952], No. 22492/53. Addition to 706,958. Class 39 (1). In a travelling wave tube as claimed in the parent Specification and having a metal envelope and in which energy is reflected by the delay line due to mismatching, and in which the input line 5, Fig. 1, and metal envelope 1 together form (undesirably) a feedback line liable to be excited by the reflected energy so as to cause self-oscillations one or more metal members within the envelope surrounding the delay line and/or the input coaxial line are provided for preventing the " feedback line " from functioning in this manner by shielding or short-circuiting action. The metal members may comprise conductive baffles 12, 13, 14, as shown, contacting line 5 directly and metal envelope 1 via fingers 15. The structure short-circuits the " feedback line ". There may be any number of baffles. In a modification the line 5 may carry bands provided with spring contacts which engage the metal envelope, Fig. 3 (not shown). The spring contacts and bands may be separate members or formed integrally and the shorting members so formed are spaced apart by less than a quarter wavelength. In a further modification, Fig. 2 (not shown), the input and output matching sections 9, 10 are joined by a conductive cylinder surrounding and shielding the helix. In the tube of Fig. 1, 5 and 6 are input and output coaxial lines, and the wave propagating structure is a helix carried by a quartz tube 8 or by ceramic rods bonded thereto. The helix supporting tube may have on its inner or outer surface or in the material of the tube itself lossy material 11, such as colloidal or moulded graphite. The helix may be replaced by a disc loaded guide. Cooling fins 4 are provided. The mismatching producing the feedback energy may be due to imperfections in the delay line, imperfectly matched lossy material applied to a specific region of the line, or mismatching at the output end of the line. Specification 740,852 is referred to.
Patent GB-1179001-A (GB)
Title: Improvements in Lighting-Control Systems
Inventor: ISAACS ANTHONY LEONARD
IPC: G05F1/455
Filed: 1967-05-15
Abstract: 1,179,001. Control of stage lighting. THORN ELECTRICAL INDUSTRIES Ltd. 15 May, 1967, No. 22535/67. Heading H2H, A lighting system particularly for stage lighting is controlled by the difference between an input signal and a voltage derived from a simulated load. A relaxation oscillator comprising a capacitor C and unijunction transistor UJT supplies firing pulses to thyristors SCR4, SCR5 which in turn fire thyristors SCR1, SCR2 in series with lamps L. At the same time firing pulses are also supplied to another thyristor SCR3 controlling current into a simulated load R18, R38, C4, the voltage across which is tapped from a potentiometer R39, R40 and applied to one input of a difference amplifier VT1, VT2 the other input of which receives a control signal CS. Amplifiers VT1, VT2 through transistors VT4, VT5 controls the charging rate of capacitor C and hence the average voltage across lamps L. Saturable inductors LF, LF may be included in the circuit. The voltage across capacitor C4 is stated to be substantially representative of that across the lamps L. The system adjusts itself so that both input voltages to the difference amplifier are equalized.
Patent GB-1137316-A (GB)
Title: Magnetic information readout apparatus
IPC: G11C13/06
Filed: 1967-05-16
Abstract: 1,137,316. Magnetic data storage apparatus. INTERNATIONAL BUSINESS MACHINES CORP. 16 May, 1967 [5 July, 1966], No. 22564/67. Heading H3B. Data stored in a magnetic medium is read out by directing a beam of electrons through the medium, so that the beam is deviated in a direction which is determined by the stored data, and passing the deviated beam into a control device which enhances the beam when deviated in one direction and suppresses it when deviated in another direction. In Fig. 2, data is stored in the domains in a permalloy or cobalt thin film 14. A finely-focused electron beam 26 or 30 from source 10 directed on to a domain is deflected by the stored magnetization and passes into a silicon crystal 27 exhibiting the Bragg effect. The arrangement is such that one beam satisfies the Bragg law and is transmitted whereas the oppositely deviated beam is scattered as at 28a, 28b. The transmitted beam impinges on target 20, which may be a fluorescent screen, or a conductive plate connected to detection circuits. In a modification, Bragg reflection is used instead of transmission. In a third embodiment the electron beam impinges on an area of the storage film containing a plurality of stored bits. The electrons transmitted through the film and the Bragg crystal form a charge pattern on a target, thus indicating the data stored in each domain within the interrogated area. The target may be a semi-conductor surface or a glass surface having a conductive layer deposited on it. The charge pattern will be stored for a time sufficient for detection and is then discharged. The pattern can be detected by directing a beam of electrons on to the underside of the target, the charged regions causing electrons to be reflected back to a detector. In Fig. 6 (not shown), the magnetic storage film is mounted on a semi-conductor body containing a PN junction. Electrons deviated in one direction are scattered but those satisfying Bragg's law cause current to flow through the PN junction.
Patent GB-650636-A (GB)
Title: Improved process and installation for the underground carbonisation and gasificationof carbonaceous materials
IPC: C10J3/00
Filed: 1948-08-27
Abstract: 650,636. Gasifying unmined coal &c. SOC. FRANCAISE DE RECHERCHES TECHNIQUES. Aug. 27, 1948. No. 22601. Convention date, Dec. 10, 1947. Drawings to Specification. Class 55(ii)] The underground carbonization and gasification of coal, schists, lignite &c. is effected in horizontal or inclined chambers at the end of which the coal is ignited where air, air and steam &c. is introduced. the gases formed being aspirated through one or more conduits of different length on the floor of the chamber having orifices so distributed as to prevent the gases circulating in the upper part of the chamber and the repeated condensation and cracking of oil and tar. The advance of the combustion zone may be controlled by altering the effective length of the outlet conduits as by successively igniting explosive charges arranged at spaced points, or the orifices may be valved and controlled by cables, &c. Gasification may also be effected in vertical or steeply inclined chambers ignition commencing at the top and gases being withdrawn through a number of conduits with orifices distributed over the bottom. The conduits, of iron, clay, cement &c. may be in trenches and made up of short unconnected pipe lengths.
Patent GB-790504-A (GB)
Title: Lubricating oil additive composition
Inventor: GARBETT THOMAS ARNOLD
Filed: 1955-08-05
Abstract: A lubricating oil additive composition comprises 80 to 92 per cent of an oil-soluble phosphosulphurized hydrocarbon, together with (a) 0.3 to 0.9 per cent of an oil-soluble sulphur-containing alkali or alkaline earth metal salt of a phenol; (b) 0.2 to 0.6 per cent of an oil-soluble alkali metal sulphonate; and (c) 19.5 to 6.5 per cent of an oil-soluble halo-hydrocarbon sulphide, all percentages being by weight.  A suitable phosphosulphurized hydrocarbon is obtained by reacting a brightstock with phosphorus pentasulphide.  Component (a) may contain between 10 and 35 wt. per cent of the metal and between 3 and 12 wt. per cent of sulphur.  The preferred metals are calcium and barium and preferred phenols have a branched alkyl substituent of from 3 to 24 carbon atoms.  Component (b) is preferably a sodium aromatic sulphonate such as sodium petroleum sulphonate with a molecular weight above 400.  Component (c) is preferably a chloro-aromatic sulphide containing not more than four chlorine atoms, and may be a mono-, di- or poly-sulphide.  Examples of component (c) are a polysulphide of chlorinated paraffin wax, chlorodimethylbenzyldisulphide and monochlorodibenzyldisulphide. The additive may be mixed with a lubricating oil having a viscosity of from 30 to 250 S.S.O. at 210 DEG  F.  This oil is preferably a mineral oil but may be a vegetable oil such as castor oil or a synthetic hydrocarbon or synthetic ester oil.  In examples an additive comprising a phosphosulphurized bright stock, the salt obtained by neutralizing the reaction product of sulphuryl chloride and tertiary octyl phenol with baryta sodium petroleum sulphonates having a M.W. of 480, and monochlorodibenzyldisulphide is incorporated in mineral lubricating oils.  According to the Provisional Specification the phosphosulphurized hydrocarbons are prepared according to the process described in Specification 788,456. Dichlorodibenzyl sulphide is also mentioned therein as a suitable halohydrocarbon sulphide.  Specifications 586,841 and 767,115 also are referred to.
Patent GB-508148-A (GB)
Title: Manufacture of aminoaryl sulphones
Filed: 1938-07-29
Abstract: 508,148. Emulsiying-agents. GEIGY AKT.-GES., J. R. July 29, 1938, No. 22646. Convention date, July 31, 1937. [Class 1 (i)] [Also in Groups IV and VIII] Aminoaryl sulphones, prepared by condensing sulphones having halogen in the o- or pposition to the SO2 group and of the general formula with nitrogen compounds, are suitable for emulsifying agents. In the formula, R represents hydrogen, or a saturated or unsaturated, substituted or unsubstituted aliphatic or alicyclic residue which may be interrupted by hetero atoms, and R1 represents hydrogen, alkyl or -CO-X (where X is alkyl, aryl, hydroxy, alkoxy, amino, monoalkyl- or dialkylamino) and at least one of R or R1 contains a residue of at least eight carbon atoms. The reactive nitrogen compounds are ammonia, primary aliphatic, araliphatic and hydroaromatic' amines, or secondary aliphatic, aliphatic-araliphatic, aliphatic-hydroaromatic or heterocyclic amines.
Patent GB-1467937-A (GB)
Title: Bellows forming method and apparatus
IPC: B21D15/00
Filed: 1975-05-23
Abstract: 1467937 Corrugating; forming bellows CHEMETRON CORP 23 May 1975 [30 May 1974] 22691/75 Heading B3E A machine for forming circumferential convolutions in the wall of a tube B includes an internal roll 30 which is urged outwardly towards an external roll to form a convolution as the tube is rotated about its axis. The tube is supported by a rotatable chuck 70 carried on a support 64 which is vertically adjustable on columns 60, 62 and can be longitudinally indexed by a trolley 50. The internal roll 30 is vertically adjusted by a cylinder 28 acting on a crank 26, and is located between supporting rings 32, 34. A pair of external rolls 102, 104 are mounted on a platform 106, Fig. 2, which is vertically movable to move the rolls into or out of contact with the tube. When a pair of links 142, 146 associated with the supporting columns 134, 136 of the platform are extended (as shown) the rolls contact the tube exterior. Pivotal movement of the link 146 by a rack and pinion mechanism lowers the platform and retracts the rolls from the tube. The rolls are slidably carried on the platform for simultaneous movement towards or away from each other by a cylinder 130. After a convolution has been formed, the tube is indexed automatically or manually towards the left (Fig. 1) by a pneumatic mechanism 92 which moves the trolley 50, the internal and external rolls first having been retracted. The indexing movement is controlled by an adjustable stop and an external brake (Fig. 5, not shown), acting on a drum 200. A chain 80 passes around the drum and is coupled at 78 to the trolley 50.
Patent GB-1167166-A (GB)
Title: Floating Gas-Shielding Apparatus.
IPC: B23K9/16
Filed: 1966-10-03
Abstract: 1,167,166. Welding by fusion. BATTELLE DEVELOPMENT CORP. 3 Oct., 1966 [20 Oct., 1965], No. 22750/69. Divided out of 1,167,163. Heading B3R. Apparatus for automatic welding along a narrow gap between metal plates comprises a shielding gas enclosure slidably mounted on the welding head so as to be maintained in contact with the surface of the plates, and members on the welding head extending into the gap in front of and behind the welding electrode to limit flow of shielding gas away from the welding zone. The subject matter of this Specification is included in Specification 1,167,163.
Patent GB-802577-A (GB)
Title: Improvements relating to loose leaf binders
IPC: B42F13/02
Filed: 1955-08-08
Abstract: 802,577. Loose leaf binders. BROADHURST, C. J. July 27, 1956 [Aug. 8, 1955], Class 146(1) A loose leaf binder of the kind using a lace or laces passing through holes H, I in sheets E, the back B and/or spine C and clamped by devices such as O, O<SP>1</SP> on a flap D on the front cover A, has two laces F, G each having a spear end tag and a sheath end tag K, K<SP>1</SP> and L, L<SP>1</SP> which may be joined as in Fig. 3 to form closed loops over which the sheets E can be passed for insertion or removal of sheets at any position or the ends of each lace may be joned into those of the other as in Fig. 1 with the spear tag L of lace G engaging the sheath tag K of lace F at the rear of the binder and the ends K<SP>1</SP> and L<SP>1</SP> being joined at the front after passing through the flap D and being secured by the clamping devices O, O<SP>1</SP>.
Patent GB-1096176-A (GB)
Title: Cheese making apparatus
Inventor: STENNE PIERRE
IPC: A23J1/20
Filed: 1965-03-22
Abstract: This Specification describes the same apparatus as that described with reference to Fig. 1 of Specification 1,096,174 but the claims relate to cheese-making apparatus comprising means for dispensing measured quantities of concentrated cold milk and rennet, means for dispensing measured quantities of hot water spaced from said first mentioned means along a path of travel, means for cutting coagulated milk spaced further along said path of travel, at least one tank and means for advancing said tank along said path of travel so that it is successively positioned to receive milk and rennet from said first dispenser, to receive hot water from said second dispenser, and expose its contents to said cutting means.
Patent GB-295292-A (GB)
Title: Improvements in and relating to abrasive articles and method of making same
IPC: B24D3/14
Filed: 1928-08-08
Abstract: 295,292. Norton Co., (Assignees of Saunders, L. E. Milligan, L. H., and Beecher, M. F.). Aug. 8, 1927, [Convention date]. Plastic compositions containing abrasive agents for grindstones &c.-Grinding wheels &c. are made from abrasive grains (crystalline alumina or silicon carbide) and a vitrified bond having the same coefficient of expansion as the grains at temperatures below the annealing range. A bond mixture suitable for alumina grains consists of oxides of silicon (55.0), aluminium (11.4), iron (4.3), magnesium (2.8), calcium (5.9), sodium (6.0), potassium (2.6), titanium (0.7), and boron (11.3). This differs from a known bond mixture, which is quoted, principally in the presence of boron oxide, the greater proportion of sodium oxide, and the less proportion of aluminium oxide. 1 lb. of grains and 1 oz. of this bond mixture are wetted, fired to about 1125 C. (which temperature is high enough to vitrify the bond, but not high enough to take much slag &c. out of the grains into the bond, or to cause swelling due to evolution of gas, e.g. due to decomposition of ferric oxide), cooled rapidly to 800 C. (to prevent formation of crystals of feldspar &c.), and then annealed by cooling slowly to below the temperature (about 600 C.) at which the bond is solid.
Patent GB-143459-A (GB)
Title: Improvements in and relating to detachable flanges for wheels
IPC: B60B25/04
Filed: 1919-09-18
Abstract: 143,459. Bolton, H. F. Sept. 18, 1919. Tyre attachments to rims.-One side flange of the rim comprises a major portion b more or less permanently secured to the wheel (as by bolts c) and a smaller portion d which is readily detachable and on which are mounted plates h bridging- the joints k. The plates h are fitted with studs i to engage a recessed beeper g which is secured by a nut e on a bolt embraced by a hinged yoke f. As shown in Fig. 4, the ends of the plates h may be received in straps n carried by the part b : and for the same purpose, the meeting ends of the parts b, d may have interengaging lugs. The joints may also be covered by hinged clips j, Fig. 1.
Patent GB-1359243-A (GB)
Title: Building element
IPC: E04D13/064
Filed: 1972-05-17
Abstract: 1359243 Combined gutter and soffit board SUNDANCE REINFORCED PLASTICS PTY Ltd 17 May 1972 [17 June 1971] 23058/72 Heading E1B A gutter 10 is formed integrally with a soffit board 11 and is provided with a pipe 30 etxending downwardly through the board 11 connected to the gutter by a channel 32. The combined element may be of glass fibre reinforced plastics or aluminium and the inside wall 14 may be reinforced with a strip of asbestos cement formed in the plastics during moulding.
Patent GB-517652-A (GB)
Title: Improvements in hats
IPC: A42B1/22
Filed: 1938-08-05
Abstract: 517,652. Hats. ENGEL, C. Aug. 5, 1938, No. 23186. Drawings to Specification. [Class 63] To render a hat of soft felt or like material resiliently extensible an area of cuts or piercings extends along the neighbourhood of the junction and the crown and brim, a stitching of elastic yarn passing through some of the piercings. Specifications 441,046 and 441,962 are referred to.
Patent GB-1100899-A (GB)
Title: Combustion device
Inventor: ZINN ROBERT EDWIN
IPC: F23D17/00
Filed: 1966-05-24
Abstract: 1,100,899. Burners. ARTHUR D. LITTLE Inc. 24 May, 1966, No. 23195/66. Heading F4T. A burner device for burning pulverulent fuel such as coal dust has a central nozzle 13 to which is supplied a mixture of air and coal dust and an annular ignition gas chamber 17 supplied through an annular manifold 26 and passages 28 with a mixture of natural gas and air. In a modification the central primary flame is supplemented by an outer annular flame and the ignition ring is positioned between them. In another form two concentric primary fuel nozzles each have a separate ignition ring. Instead of coal dust, atomized oil may be supplied by a spray nozzle.
Patent GB-354049-A (GB)
Title: Improvements in fusible electric cutouts
IPC: H01H85/045
Filed: 1930-08-01
Abstract: 354,049. Fuse holders. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, and NICHOLS, W. H., Garthowen, Amersham-on-Hill, Buckinghamshire. Aug. 1, 1930, No. 23237. [Class 38 (i).] In a bridge-carrier fuse of the type in which the fuse element 4 passes through a heat-resisting insulating tube 3 and connects to contacts on the carrier 9, the base 1 and carrier, at each end of the tube 3, have cavities 6, 11 which, when the carrier is in position, form expansion chambers, communication between the two expansion chambers being prevented. The base and carrier are cut away at 13, 14 to form vents from the expansion chambers. The contacts 15 are held in position in recesses 17 in the base by means of bowed springs 19 which also press the contact blades 16 of the carrier against the contacts 15. The base and carrier are provided with semicircular grooves 2, which house the tube 3.
Patent GB-204486-A (GB)
Title: Improvements relating to warp beams, cloth rollers, spools, and the like
IPC: B65H75/24
Filed: 1922-08-28
Abstract: 204,486. South, F., and Starkie, J. Aug. 28, 1922. Cloth and warp beams.-A warp beam, cloth roller, spool, &c. has a telescoping barrel portion comprising two sets of prongs C which interlock with or lie between one another and are supported at or near their ends by collars D, B at. tached to the prongs by screws &c., the collar D at the outer end of each set of prongs being slidable within the other set of prongs. Flanges A are secured to the collars B, which have square holes for a square shaft. The inner collars D may also have square holes. As applied to a weaver beam, Fig. 5, the bosses B are formed with necks or ruffles E and fitted with pikes F. Any number of beams may be arranged on one shaft.
Patent GB-191106-A (GB)
Title: Method of producing coloured ornamentation of any kind on leather
IPC: D06Q1/00
Filed: 1921-09-01
Abstract: A process for ornamenting leather consists in applying a coloured design, covering the design with a resist such as lac, and then applying a ground colour to the whole surface.  In a modification, the ornamentation colour is combined with the resist, and in a further modification, the resist is employed alone without colour, to produce the ornament pattern in the natural colour of the leather. Reference has been directed by the Comptroller to Specifications 820/86 [Class 76, Leather.], 2274/10, [Class 93, Ornamenting]. and 7922/10,
Patent GB-319188-A (GB)
Title: Improvements in means for retaining coil springs under compression
IPC: F01L3/10
Filed: 1928-06-20
Abstract: 319,188. Morrison, R. H., and Abingdon Works, Ltd. June 20, 1928. Divided on 317,580. Repairs, facilitating. - In means for holding helical springs, for example of internal - combustion engine valves, in the compressed state, a catch or container having two or more resilient members a extending along opposite side of the spring is adapted to engage a plate or washer g when the spring is compressed. Inwardly-turned portions q on the members a preferably engage lips r on the washer g.
Patent GB-960585-A (GB)
Title: Temperature sensitive electric device
IPC: G01K5/46
Filed: 1960-07-05
Abstract: 960,585. Temperature-responsive actuating- elements. S. J. BIRTLEY. July 4, 1961 [July 5, 1960], No. 23379/60. Heading G1D. [Also in Division H2] A device sensitive to unusual temperature changes comprises an airtight, gas-filled container divided by a flexible diaphragm A into two compartments one compartment having heat insulating walls and/or insulating packing C such that on abnormal heating or cooling of the container a pressure difference is set up causing diaphragm A to move and make an electrical contact (see Division H2). A fusible plug D is set in the wall of the insulated compartment in order to melt at a predetermined maximum temperature and release the gas pressure in the compartment, thereby making the contact.
Patent GB-332076-A (GB)
Title: Improvements relating to the manufacture of pointed fastening devices from sheet metal
IPC: B21D53/36
Filed: 1929-07-31
Abstract: 332,076. Humphris, F. July 31, 1929. Perforating ; cutting nails; punches. - Sheet stock for use in the manufacture of sheet metal nails of corrugated or like cross section is provided prior to the action of the combined blanking and corrugating punches with triangular openings or with V- or W-shaped slits at the parts of the sheet that subsequently form the points, so that the points of the blanking punches are relieved from all cutting duty. Thus perforations a, Fig. 1, may be produced at properly pitched distances by the punches, Fig. 6, or slits a<1>, Fig. 2, by the punches, Fig. '7.
Patent GB-1086384-A (GB)
Title: Photographic recording processes and materials therefor
Inventor: MOORE ERIC
IPC: G03C1/725
Filed: 1963-06-13
Abstract: 1,086,384. Photographic materials. KODAK Ltd. June 12, 1964 [June 13, 1963], No.23546/63. Heading G2C. A photographic material which is light-sensitive when moist comprises a support bearing a layer of a water-permeable colloid binder containing lead iodide and sodium thiosulphate. On imagewise exposure of the moist layer to high intensity light, a latent image is formed which is developed by uniform exposure to light of a relatively low intensity producing initially a visible negative image; on further exposure to low intensity light a positive image is obtained. The negative or positive images are stabilized by drying the layer. In the Example, a light-sensitive lead iodide emulsion is prepared by adding a solution of lead nitrate, potassium iodide and dextrin to a gelatine solution containing mucochloric acid and sodium thiosulphate; after exposure both positive and negative images were obtained by photo-development.