baber/WOPTO huggingface dataset:
Patent GB-172108-A (GB)
Title: Improvements in or relating to heating attachments for use in printing presses, sheet feeding, stacking, folding and like machines
IPC: B41F23/04
Filed: 1920-08-30
Abstract: 172,108. Canadian-American Machinery Co., Ltd., (Cochrane, C. H.). Aug. 30, 1920. Drying-apparatus for printing- machines. - A heating-attachment for printing, sheet-feeding, and like machines is provided with a movable member adapted to control the supply of the heating medium by being caused to vary its operative position automatically by the action or inaction of the machine to which it is applied. A ball 35, Fig. 5, resting on an inclined partition 30 in a casing 14 through which gas is passed from a flexible supply tube 21, Fig. 2, and via a mixing chamber 13 to a perforated gas pipe 2, Fig. 3, is seated, when the press is inactive, on the flared end of an aperture 31 eccentrically formed in the partition 30, and so shuts off the gas. The gas pipe 2 is fixed by clamps 4, 5 to the front bar 1, and the casing is clamped to a bar 19 of the press delivery-carriage so that, when the latter is reciprocating during the working of the press, the ball 35 is unseated and travels about in the partition thus allowing gas to pass through the aperture 31. A pilot jet for relighting the gas is fixed by a band 24 to the pipe 2 and is connected to the upper part of the casing 14. Spring clips 40, Fig 3, preferably lined with asbestos, may be used to shut off the perforations not required. A shield 37, Figs. 2 and 3, fixed to the pipe 2 and provided with a turned-down end 39, protects the operator from the glare of the fiames and directs some of the heat down on to the pile of sheets being formed. In a modification, Fig. 9, the ball 35 is replaced by a globule of mercury 52 which, when the press is inactive, bridges two contacts 56, 57, thus energizing an electro-magnet 65 which attracts a spring-pressed lever 63 and shuts off the gas. The attachment, may be fixed to the front end of the press, the sheets passing over the shield 37 and then collecting beneath it, and may also be applied so as to co-operate with the impression cylinder, being fixed to the moving feed board and alternately heating the cylinder, tympan and the sheets.
Patent GB-1047887-A (GB)
Title: Method and apparatus for radar and ionospheric pulse reception
IPC: H03D1/22
Filed: 1963-06-25
Abstract: 1,047,887. Pulse radar; radio receiving systems. E.M.I.-COSSOR ELECTRONICS Ltd. June 25, 1963 [June 14, 1963], No. 25308/63. Headings H4D and H4L. A receiver, receiving a signal which includes pulses (pulse function F) of an oscillation having a predetermined mean frequency #/2#, wherein the phase (#t + #) of the oscillations as received may vary indeterminately with time, e.g. an ionospheric pulse sounding receiver or a communication receiver, comprises means 1 forming the product ¢akF[cos # - cos(2 #t+#) between the signal F 1  and a signal F 2 =a sin #t, from local oscillator 3 (which may form the transmitting oscillator in a pulse radar sounding system), filter means 8 extracting the low frequency term ¢akF.cos # from the product, this term being a series of pulses having amplitudes dependent on the phase of the received signal, and full wave rectifying means 5, operating on the low frequency term after amplification at 4, to produce a signal of one polarity, having, since the variations of # will be largely random over a period, an average value independent of # and dependent only on the amplitudes of the received pulses.
Patent GB-969469-A (GB)
Title: Arrangement for stabilising ships
Inventor: SCHMIDT WILHELM
IPC: B63B39/06
Filed: 1963-06-26
Abstract: 969,469. Ships' stabilizing fins. INSTITUT FUR SCHIFFBAU. June 26, 1963, No. 25388/63. Heading B7M. An arrangement for stabilizing ships consists of a retractable, angularly adjustable fin 1 movable up and down parallel to itself by rotation about an axis 5 transverse to the direction of travel. In Fig. 2 the fin 1 is pivotally mounted on the throw portion 3 of the crankshaft 5. The parallel movement of the fin is effected by identical toothed wheels 6, 7, an intermediate wheel 8 and a connecting rod 9, relatively to which the fin is angularly adjusted by means of a control cylinder 10 on the rod 9. In Fig. 3 the fin is divided into ports 1 and 2 rotatably mounted on the throw portions 3 and 4 of a crank-shaft 5 offset by 90 degrees, and so guided by means of wheels 6, 7, 8 and a crank-shaft 11 having throw portions 12, 13, that they move up and down by rotating so as to be always parallel to themselves. The support plate 14 is mounted on bearing blocks 15 and 16 on a base plate 17 so that the support plate and hence the fin parts are angularly adjustable by means of a control cylinder 18.
Patent GB-518825-A (GB)
Title: Improvements in or relating to magnetic structures
IPC: H01F7/02
Filed: 1938-08-30
Abstract: 518,825. Alloys. BRITISH SANGAMO CO., Ltd. Aug. 30, 1938, No. 25408. Convention date. Oct. 9, 1937. Drawings to Specification. [Class 82 (i)] [Also in Groups XXII and XXXV] A permanent magnet may be made of an alloy comprising 12 per cent. aluminium, 18 per cent. nickel and 70 per cent. iron.
Patent GB-322249-A (GB)
Title: Improvements in, or relating to, exhaust-silencing systems of internal-combustion engines such as used in connection with motor-cycles
IPC: F01N13/08
Filed: 1928-09-06
Abstract: 322,249. New Imperial Motors (1927), Ltd., and Downs, N. T. Sept. 6, 1928. Exhaust, disposing of.-Consists of an exhaust system for the engines of motor-cycles of the single exhaustvalve type, wherein there is mounted between the engine and the front member e of the frame, a silencer box or expansion chamber a having one port a<1> connected to the engine exhaust port, and two outlet ports a<2>, a<3> so disposed as to permit of exhaust pipes c, d being connected to the said outlets and carried rearwardly from the box on opposite sides of the machine. The silencer may have any system of internal baffles, may have cooling ribs g, and is secured to the member e between the outlets a<2>, a<3> by a clamp f.
Patent GB-1477513-A (GB)
Title: Unidirectional thyristors
IPC: H01L29/74
Filed: 1974-06-10
Abstract: 1477513 Semiconductor devices SIEMENS AG 10 June 1974 [12 June 1973] 25602/74 Heading H1K In a unidirectional thyristor the P-N junction between the emitter zone 1 and the base zone 2 is bridged over a minor part only of its periphery by at least one shunt which is constituted by a substantially straight current path extending along the surface of the body at the base or emitter zone and which connects the emitter electrode 6 and a further electrode 7 on the base zone, and the base zone 2 having an ignition electrode, which may, as shown, be the further electrode 7, and which is at least partially surrounded by the emitter electrode 6. A projection 12 may be formed in the emitter zone 1, as shown, or in the base zone, Fig. 2 (not shown), such that it underlies the further electrode 7 or the emitter electrode 6, respectively. Further shunts may be provided by holes 9 in the emitter 1 through which the base zone 2 extends. In further embodiments, Figs. 4 and 5 (not shown), the respective electrodes may be recessed to partially accomodate the projections of the underlying emitter or base zone. Other embodiments, Figs. 6 and 7 (not shown), disclose similar arrangements when the thyristor is provided with an ignition amplifying structure.
Patent GB-1157491-A (GB)
Title: Method and Apparatus for Processing Anisotropic Solid Substances.
Inventor: SNYDER FRANCIS HENRY
IPC: C22B4/00
Filed: 1966-06-09
Abstract: 1,157,491. Disintegrating ores &c. by explosive action. R. S. COOLEY, J. I. O'NEIL and E. E. GOSE. [trading as TREDCO Ltd]. 9 June, 1966, No. 25695/66. Addition to 1,115,381. Heading B2A. [Also in Divisions C1 and D2] Non uniform solid substances, having planes or areas of weakness e.g. rocks minerals, wood, cork, 'bones, leather, slags, fibre resins and scrap paper are separated into component particles or fibres by subjecting the substance to an atmosphere of steam or another gaseous medium under pressure releasing the fluid and solid suddenly, along a pipe (which may be straight (Fig. 2) or bent (Fig. 1) and may -have a gradual reduction in cross-section towards the discharge zone) without energy loss and allowing the fluid to expand into a discharge zone at atmospheric or sulb-atmsospheric pressure. Turbulent flow in the discharge zone breaks up the material. The discharge zone is designed' to avoid back pressure and may contain an impact surface at the end of the blast zone.
Patent GB-1014138-A (GB)
IPC: B65G19/18
Filed: 1964-06-22
Abstract: 1,014,138. Scraping chain conveyers. GEWERKSCHAFT EISENHUTTE WESTFALIA. June 22, 1964 [June 22, 1964], No. 25702/64. Heading B8A. A method for securing a double-chain scraper conveyer when any repair work becomes necessary includes making the chains fast in one direction by a wedge shoe 25 and in the other direction by blocking the chain drive sprocket wheels 23, 24 by pawls 31, 32. The wedge shoe 25 comprises two spaced wedge plates 26, 27 interconnected by a handle 28 and a base plate 29. The wedge plates 26, 27 engage under a scraper bar 17 when the upper run of the conveyer is moved away from the drive head 21 and the bar 17 is jammed between the plates and the upper walls of channel members 12, 13 between which is secured the base plate 14 of the conveyer pans. The base plate 29 of the wedge shoe 25 is prevented from moving by engagement with the joint line of adjacent pans. The chain portions extending from the shoe 25, around the reversing drum at the remote end of the conveyer and along the lower conveyer run to the drive drum 22 are put in tension by driving the drum. The drum is then locked by pivoted pawls 31, 32 which pass through links 34 of the chains and engage between adjacent teeth 35 of the drive sprockets. The pawls allow a forward but not reverse motion of the sprocket wheels. The sections 36, 37 of the chains are then relieved of tension and repairs to this section can be effected.
Patent GB-206310-A (GB)
Title: Improvements relating to sharpeners for knives and other tools having a cutting edge
IPC: B24D15/08
Filed: 1922-09-22
Abstract: 206,310. Bennett, H. G., and Rowe, I. Sept. 22, 1922. V-slot blade sharpeners comprise a holder a and hardened steel members d positioned in the holder with all of their extremities at one end attached to the holder by a rivet or pin e, and the other extremities of alternate members spaced apart and secured by rivets or pins e to the holder, in which also is formed a gap to expose the edges of the members d. The holes in the members d to receive the lower rivet e may be formed out of line with the longitudinal axes of the members; or the holes may all be on those axes and the angle of the V may be adjusted by adjustment of the length of the members or of the width of the open end of the V, or both. The members may be loosely mounted on the pins.
Patent GB-940041-A (GB)
Title: Improvements in bottle crates
Inventor: CARLTON WILLIAM CHARLES
IPC: B65D85/30
Filed: 1961-07-17
Abstract: 940,041. Bottle crates. CARLTON PLASTICS Ltd. June 19, 1962 [June 17, 1961], No. 25780/61. Heading B8P. A bottle crate, having at least two separately moulded parts of synthetic plastics material, comprises a base 1, an intermediate member 2, and a rail 3, all connected by metal bolts 11 passing through pillars 5 on the periphery of the crate. The base 1 and member 2 have division members 4 and 8 to define the bottle spaces, the upper edges of the division members being undulating to guide the bottles into the spaces. Intermittent ridges may be formed on the underside of the base 1 of a crate to engage the rail 3 of the crate below it, and openings 24 may be formed on the base 1 so that bottles smaller than those for which the crate is intended will pass through.
Patent GB-1291350-A (GB)
Title: Method of consolidating metallic or ceramic powder bodies
IPC: B22F3/00
Filed: 1970-05-28
Abstract: 1291350 Hot pressing oxidic powders WHEELING-PITTSBURGH STEEL CORP 28 May 1970 [2 June 1969] 25790/70 Heading C1A [Also in Division C7]  A method of hot pressing pulverulent oxides comprises packing a heated compact 12 of the oxide in refractory powder in a container 11, transferring the assembly above a die cavity 14 and discharging the compact and refractory powder into the die where it is compacted. The container and refractory powder may also be preheated. All the operations of precompaction, loading, heating and hot pressing may be effected in a controlled atmosphere, e.g. vacuum, He, A, H 2 , N 3 , NH 3 , CO or hydrocarbon gases and the apparatus is surrounded by enclosure 15. The heated precompact 12 may be sheathed in metal or ceramic which may be sprayed or cast on the compact. The powders may vary from less than 1 micron to 30 mesh and may be mixed with binders. The refractory packing powder, preferably of -100+325 mesh may be oxides, clays, sulphates, silicates, aluminates, CaF 2 , nitrides, carbides, silicides, borides, sulphides or carbon.
Patent GB-1098948-A (GB)
Title: Improvements in or relating to razor blades and to the manufacture thereof
Inventor: RADFORD JOHN ALBERT
IPC: B26B21/54
Filed: 1964-06-23
Abstract: In a method of making a razor blade, after the formation of the cutting edge and prior to the application of a coating to give improved shaving, the blade is heated to volatilise volatile materials on the blade and to cause firm adhesion to the blade of any other materials which were on the blade prior to the heating. A stainless steel blade which has been stropped is heated to 400 DEG C to drive off the volatile part of any stropping waxes left on the blade.  Non-volatile contaminants are simultaneously baked on to the blade.  The heating is effected in a protective atmosphere of nitrogen or hydrogen.  The blade is then degreased and coated with P.T.F.E. as described in Specification 966,084.
Patent GB-337868-A (GB)
Title: Improvements in and relating to the manufacture of sensitized bases for photographic purposes
IPC: G03C1/795
Filed: 1929-08-24
Abstract: 337,868. Murray, H. D., Spencer, D. A., and Colour Photographs (British & Foreign), Ltd. Aug. 24, 1929. Printing,-paper; films.-The material comprises a water-impermeable cellulose ester, or fibrous material such as paper or fabric coated or impregnated with such an ester, the surface of the ester being rendered water-permeable by superficial deesterification and thereafter impregnated with a light-sensitive salt, such as a salt of silver, iron, or chromium, or a diazo compound. The ester may be in the form of celluloid, or cellulose acetate in the form of the material known under the Registered Trade Mark " Celastoid." When the ester is to be compounded with paper or fabric, this may be soaked in acetone before treating it, as by spraying, dipping, or brushing, with a solution of the ester in a solvent such as acetone. The ester may contain the usual plastifiers, and the superficial de-esterification may be performed, in the case of nitrocellulose by ammonium sulphide, or in the case of cellulose acetate by acids or alkalies to which may be added (1) alcohol or acetone to accelerate the action or (2) neutral inorganic salts such as chloride or sulphate of soda, or organic colloidal substances such as gum arabic or polyvalent alcohols, to render the action more uniform. After de-esterification, the layer is cleared with acid or alkali according to the deesterifying agent used, and is then washed and dried. The water-permeable surface may be sensitized with a silver salt by treatment in known manner with successive baths which form a sensitive silver salt by double decomposition.
Patent GB-1358397-A (GB)
Title: Roll films
IPC: G03B17/30
Filed: 1971-04-19
Abstract: 1358397 Cameras and cartridges therefor EASTMAN KODAK CO 19 April 1971 [6 April 1970] 25923/71 Headings G2A and G2X When a roll of film and backing paper is wound on to the take-up spool 13 in the take-up compartment 17 of a film cartridge, the leading end of the paper 15 is attached to the spool by a piece of tape 33, but the film strip 14 is attached to neither the paper nor the spool, being drawn along merely by frictional engagement with the paper. As shown, the cartridge comprises upper and lower casings 12, 11, the former having a window 26 through which frame indicia 36 marked on the backing paper are visible. The film passes between seating projections 47, 48 on casing 12, grooved surfaces 45, 46 on casing 11 preventing grazing reflection of light along the film surface. As the paper strip winds on to spool 13, the leading end of the film enters the nip between the paper and the spool, and so is wound tightly in the roll. The film strip itself has a series of metering perforations 35, and the paper strip has a notch 34, Fig. 2 (not shown) at its trailing end. A metering mechanism is provided which includes a pawl member 75 having a tooth 82 at its lower end. The pawl pivots on a pin and slot arrangement 76, 77 so that a spring 78 urges the pawl downwards and clockwise. Initially the tooth 82 rests on an imperforate part of the film Fig.6. In this position an L-shaped lever 97 pivoted to pawl 75 has a leg 104 which engages under a leg 105 on the shutter release trigger 91 and blocks it against movement. In this position also, a dog member 84 also pivoted to pawl 75, and having a toothed end 88 aligned with a ratchet wheel 89 on the film winding shaft 73, is withdrawn out of engagement with the ratchet wheel. As the film and paper are wound on to spool 13 a metering perforation 35 moves into alignment with tooth 82, which enters therein. With continued movement of the film, pawl 75 is pivoted anti-clockwise (position of Fig.8) so that toothed end 88 enters into locking engagement with the wheel 89, disabling the film advancement. At the same time leg 104 disaligns from leg 105, so permitting the shutter trigger to be actuated. This movement also draws the pawl 75 upwards out of engagement with the film perforation, and also retracts tooth 88 from wheel 89, so freeing the film transport once more. When the end of the film is reached, the tooth 82 passes through the notch (34) in the paper, which disables the film advance and blocks the shutter release trigger. Thus the operator is made aware that the camera is locked against further use until the cartridge is removed.
Patent GB-1081555-A (GB)
Title: Organotin compounds
Inventor: HEISS HERBERT LOUIS
IPC: C07F7/22
Filed: 1965-06-18
Abstract: The invention comprises organo-tin compounds containing a tin-nitrogen bond made by reacting an organoisocyanate with an organic compound containing a tin oxygen bond, e.g. (R2SnO)n, R3Sn-O-SnR3, R2Sn(OH)2, R3SnOH, R3SnOR, R2Sn(OR)2, RSn(OR)3, Sn(OR)4, Sn(OR)2, R3SnO.CO.R, R2Sn(O.CO.R)2, RSn(O.CO.R)3, Sn(O.CO.R)4 and Sn(O.CO.R)2, wherein R is alkyl, aryl or aralkyl. Mono- or polyisocyanates can be used.  In the examples, compounds of the following formulae are prepared:  <FORM:1081555/C2/1>
Patent GB-702096-A (GB)
Title: Improvements in or relating to apparatus for moulding chocolate or similar material
IPC: A23G3/20
Filed: 1951-11-06
Abstract: 702,096. Moulding chocolate &c. in travelling moulds. MIKROVAERK AKTIESELSKAB. Nov. 6, 1951 [June 6. 1951], No. 25976/51. Class 87 (2) Excess chocolate &c. is removed from the moulds by a scraper (or scrapers) mounted in a carriage which . reciprocates in the direction of travel of the moulds, the scraper also reciprocating on the carriage transversely of the said direction. As described, the carriage travels with the moulds while the scrapers reciprocate across the moulds. In Fig. 2 the moulds 12 carrying chocolate are supported by chains 24, 25 which move from right to left. Fig. 3 is an end view. Two scrapers 36 in the form of flaps are mounted on an axle 37 journalled in bearers 38 forming part of the carriage. the carriage may be raised from the moulds or lowered thereonto: as shown in Fig. 2 it is lowered, and in this position three plates 11 rigidly secured thereto and depending therefrom engage apertures between the moulds, so that as the moulds move to the left the carriage, with its scrapers, is taken along by the moulds; it is taken along' against the resistance of a spring 35. As the carriage is moved to the left the scrapers are moved across the moulds and back again (right to left and left to right, Fig. 3, and to and from the observer, Fig. 2), At ',the end of this transverse reciprocating movement of the scrapers the carriage rises, whereupon the spring 35 retracts the carriage to the right. The carriage then descends and the cycle is repeated. The traversing motion of the scrapers is effected by continuously-running chains 41 which run over sprockets 45. The chains carry between them a rod 43 which extends through a vertical slot 44 in each of the bearers 38. The bearers 38 have wheels 40 which run in channels 14, 15 in the carriage. As the scrapers move they decline rearwardly (Fig. 3), and the extent of the decline is governed by screws 55. The 'carriage is raised and lowered by cams 3<1>, 4<1> acting on members 6 forming part of the carriage, and is urged downwardly by springs 56. The chocolate scraped off slides down shoots 52 into a container 53. As shown, each scraper scrapes every mould, but it may scrape only every other mould. Instead of one scraper 36 there may be several acting successively. Instead of the carriage being movable it may be still, the moulds being raised and lowered.
Patent GB-502826-A (GB)
Title: Improvements in the manufacture of laminated wooden blocks
IPC: B27D1/04
Filed: 1937-09-25
Abstract: 502,826. Laminated wood ;screwpropellers. JABLONSKY, B. Sept. 25, 1937, No. 26030. [Class 145 (ii)] [Also in Group XXXIII] A laminated solid block of wood or fibrous material or of the two combined for use in the construction of airscrews, spars, &c. is formed of a plurality of block sections superposed and cemented together without the application of heat, each section consisting of thin layers or veneers cemented together under pressure and heat. Films of synthetic resin may be used in making each section. Additional thin interleaves of shorter and varying lengths may be interposed so that after the application of pressure and heat there is a gradual change of density from one part of the block to another.
Patent GB-149554-A (GB)
Title: Improvements in superheaters for use in connection with steam generators
IPC: F22G3/00
Filed: 1919-10-23
Abstract: 149,554. Stirling, J. H. Oct. 23, 1919. Butt joints; jointing tubes to headers.-Joints for fixing tubes to a header in a superheater are formed by a soft ring d held between the face and the header and a recess e in the collar b of the tube, Fig. 1, or in the terminal block a, Fig. 5. The recess leaves a rim h which fits into a groove i surrounding the face portion of the header. This rim may be formed by a removable ring and mav have longitudinal slits j to permit the escape of moisture that may collect owing to a loose joint. An internally-projecting abutment may be formed on the collar to secure a wider space between the end of the tube and the face of the header. A suitable method for connecting the tube elements to the header consists of a bolt o passing through a hole in the header and having a barrel-shaped end n fitting in an undercut slot m in the terminal block.