baber/WOPTO huggingface dataset:
Patent GB-607972-A (GB)
Title: A method of wrapping a roll and a machine for carrying out such method
IPC: B65B11/12
Filed: 1945-11-21
Abstract: 607,972. Feeding sheets. BURGESS, A. F. (Lawton Co., C. A.). Nov. 21, 1945, No. 31356. [Class 100(i)] [Also in Group XVII] In a machine for wrapping a roll. such as a toilet roll (see Group XVII), the wrappers are stacked in a magazine comprising a plate 29, Fig. 4, and loaded by a weight 43, perforations at their end margins receiving pegs 38, Figs. 3 and 4, fixed to a bar 37. The lowermost wrapper rests on a bar 31 and a plurality of friction rollers 32, each driven from a shaft 39 through an overrun clutch comprising a driver 40 fast on a shaft 39 and having a lug 41 engaging a lug 42 projecting from the roller. The rollers pull the lowermost wrapper free of the pegs 38 and advance it into the bite of feed rollers 34, 34<1>, driven at a higher speed than the rollers 32, whereby the wrapper is advanced more rapidly and accelerates the rollers 32 with respect to the shafts 39. The lugs 41, 42 of each driver are thereby separated by almost one revolution, so that after releasing a wrapper the rollers 34 remain stationary until the lugs 41 catch up with the lugs 42, when the operation is repeated. Meanwhile the first wrapper is advanced on to a grid-like feed table made up of fingers 33 and having an opening provided by shorter fingers 35 through which the wrapper is pushed by a pressure foot 27 on to a previously fed roll 20.
Patent GB-656013-A (GB)
Title: Improvements in the production of sheet materials
Inventor: MANN RALPH JAMES
IPC: D04H1/4266
Filed: 1948-12-03
Abstract: 656,013. Fabrics composed of agglutinated fibres. BRITISH CELANESE, Ltd. Dec. 3, 1948, No. 31368. [Class 140] A skin is formed on a loose mass of fibrous material comprising a substantial proportion of thermoplastic fibres by exposing it to radiant heat while held under light pressure by metal gauze through which the radiant heat is applied, the exposure being terminated when the fibres at and near the surface of the mass have been rendered adhesive thereby, and before the thermoplastic fibres within the mass become adhesive. Surface combustion heaters at a temperature of from 750 to 950 C., or electrical radiant heaters, may be used, and the mass may be exposed to them for a number of short periods interrupted by cooling periods. The thermoplastic fibres may be of cellulose acetate, other cellulose esters, e.g. cellulose propionate, or mixed esters, such as cellulose acetate propionate and cellulose acetate butyrate, cellulose ethers such as ethyl and benzyl cellulose, synthetic linear polyamide condensation products, polymeric vinyl halides or vinyl esters of organic acids, or copolymers of such vinyl esters and vinyl halides, polymerized methacrylic acid esters and the like. The treated material may consist wholly of such thermoplastic fibres, or it may contain a proportion, preferably about 20 per cent or less, of non-thermoplastic fibres, e.g. cotton, silk, wool, regenerated cellulose, jute or hemp. Specification 582,006 is referred to.
Patent GB-761024-A (GB)
Title: Preparation of high molecular weight alcohols
IPC: C07C29/14
Filed: 1954-10-29
Abstract: In a process in which olefines having n carbon atoms in the molecule are converted to an oxygenated reaction product containing aldehydes by reaction with hydrogen and carbon monoxide in the presence of a cobalt carbonylation catalyst at elevated temperatures and pressures in a carbonylation zone and the carbonylation product is converted to a product containing alcohols, the oxygenated reaction product is intermediately heated with a zinciferous reaction modifier for an extended period of time (e.g. 2-48 hours) at 200-450 DEG  F. under a pressure which is at least atmospheric (e.g. up to 1000 p.s.i.g.), and the thus-treated product is hydrogenated to form a product containing monohydric alcohols having 2n+2 carbon atoms in the molecule.  The reaction modifier, the weight of which is advantageously 0.05 to 5 per cent of the weight of the aldehyde, may be added at least in part in the carbonylation zone, or wholly to the carbonylation product after removal from said zone, and the cobaltiferous material may be removed from the carbonylation product before or preferably after the heating thereof with the reaction modifier. A suitable arrangement of apparatus is described with the aid of a drawing.  Examples describe the treatment of a heptene fraction to produce C8 and C16 alcohols, the following reaction modifiers being used: zinc oleate, zinc acetate and zinc alumina spinel.  Mossy zinc and zinc turnings are also specified, and the production of C20 alcohols from C9 olefines is referred to.
Patent GB-1523667-A (GB)
Title: Gas turbine construction
IPC: F02C7/20
Filed: 1976-07-28
Abstract: 1523667 Gas turbines UNITED TECHNOLOGIES CORP 28 July 1976 [1 Aug 1975] 31425/76 Heading F1T A gas turbine engine is constructed such that the turbine rotor or stator blades can be removed forwardly through a gap in the engine casing. In the engine shown, the gap is provided by removing bolts 62, 66 so that cylindrical casing portion 58 can be moved rearwardly relative to casing portion 110. Gas ducts 72 can then be detached by removing bolts 78, 80, thus providing access to the first stage stator assembly 48 including frustoconical support ring 82 and bulkhead 118 stator blades 52 can be detached by removing bolts 88, 130 to provide access to first stage rotor blades 44 which can then be withdrawn from axial mounting slots in disc 40 by removing bolts 188, 192 and sideplate 184. To remove second stage stator blades 54, support ring 128, shroud 129 and bulkhead 118 are detached and then nuts 133 removed to permit forward movement of casing portion 114 and subsequent removal of bolts 137. Blades 54 can then be released by radial outward movement so as to disengage axial and circumferential lugs 326, 328, Fig. 7, on the inner blade platforms 154 from corresponding recesses in diaphragm 50 and ring 164. Lugs 326 lock the bayonet connection 168 between the diaphragm and ring. The blade platforms have recesses such as 117 for sealing strips. Second stage rotor blades 46 can be removed in similar manner to blades 44. The turbine can also be dismantled rearwardly by first detaching nut 178 to permit removal of shaft 36 and second stage rotor assembly 34.
Patent GB-735467-A (GB)
Title: Improvements in or relating to the purification of gases
Inventor: BIRKS FALCONER MOFFAT
IPC: C10K1/30
Filed: 1952-12-12
Abstract: 735,467. Gas purifiers; revivifying gas purifier waste. NORTH THAMES GAS BOARD. Jan. 4, 1954 [Dec. 12, 1952], No. 31600/52. Class 55 (2). Fuel gases are treated with particulate iron oxide by passage through a stationary cylindrical vessel containing the oxide and capable of rotation about its longitudinal axis which is horizontal or slightly inclined, the gas flow being periodically interrupted and the vessel rotated, e.g. six to twelve times to mix the oxide, revivification by oxidation also being effected in the same vessel. One or more transverse partitions may provide for a down and up flow through the material; rods for breaking it up during rotation and lifting blades or vanes may also be fitted. Two or more vessels may be used in parallel to permit continuous working. Revivification may be wholly or partly effected simultaneously with the purification by addition of air to the gas. Temperature control during revivification may be effected by using an inert gas stream in a closed cycle to which a varied proportion of air is added.
Patent GB-684446-A (GB)
Title: Improvements in or relating to ignition coils
IPC: H01F38/12
Filed: 1950-12-29
Abstract: 684,446. Transformers. ESSWEIN, J., and HENRY, G. Dec. 29, 1950 [Feb. 28, 1950], No. 31652/50. Class 38 (ii). An ignition coil comprises a central magnetic support 21, on which is wound a secondary winding 22 surrounded by an insulating casing 23, the primary winding 25 being wound on a spool 24 and placed around the casing 23. The casing 23 is filled with oil or a similar substance and the whole assembly surrounded by a corrugated magnetic member 26 which serves to increase the rate of heat dissipation of the primary winding and also to form part of the magnetic circuit of the coil. The separation of the primary and secondary windings by a casing comprised of a poor heat conducting substance reduces the effect of the heat produced in the primary winding on the insulation of the secondary winding.
Patent GB-1108065-A (GB)
Title: Electro-magnetic stirring apparatus and method
IPC: B01F13/08
Filed: 1965-07-24
Abstract: An electromagnetic stirrer comprises a plurality of coaxially mounted induction coils enclosing a body of material to be stirred e.g. molten metal.  The coils are successively energised by timed unidirectional electric pulses to provide a travelling magnetic field in the body of material.  The inductive nature of the coils causes an overlap of the fields for a while between adjacent coils to produce a smooth advancement of the field.  The successive pulses may overlap each other slightly.  The supply may be D.C. or rectified single or multiphase A.C.
Patent GB-190460-A (GB)
Filed: 1922-11-21
Abstract: 190,460. Telegraphie-Ges. System Stille. Dec. 17, 1921, [Convention date]. Sound magnifying and directing appliances.- The horn mouth 4 is shaped as shown, and has adjacent thereto an angular reflector.
Patent GB-882922-A (GB)
Title: Improvements in burners for oil fuel
Inventor: MOFFAT GEORGE STEWART
IPC: F23D3/00
Filed: 1959-09-18
Abstract: 882,922. Vapour burners. VALOR CO. Ltd. Sept. 13, 1960 [Sept. 18, 1959], No. 31825/59. Class 75(1) A vapour burner comprises two concentric fuel troughs 5, 6 containing wicks 8 and surmounted by spaced perforated sleeves 7 forming outer and inner annular combustion chambers 9, the inner sleeve of the outer combustion chamber and the outer sleeve of the inner combustion chamber resting on a sheet metal ring 12 of inverted channel section having aligned openings 18, 19 in its side walls through which, at starting, the flame passes from the outer combustion chamber to the inner combustion chamber. The wick 8 of the outer combustion chamber is ignited by an igniter introduced through an opening 16 in the outermost sleeve 7; the opening is closed by a door 17. The sheet metal ring 12 rests in an annular well in the base of the burner and has holes 15 for the passage of air tubes 14 extending upwardly from the well into the space between the two combustion chambers.
Patent GB-1521522-A (GB)
Title: Medical needles
IPC: A61M5/31
Filed: 1975-07-30
Abstract: 1521522 Medical needle holder assemblies S ISHIKAWA 30 July 1975 31837/75 Heading A5R A needle holder assembly for use with a hypodermic syringe or venoclysis equipment, comprises a needle holder 10, Fig. 1, having a forwardly tapered hollow body portion 12 having an annular end wall 14 at its foremost end and a cylindrical extension 16 having a passage 18 for receiving a needle, and a filter 22 composed of a wad of a filament yarn of synthetic resin and located between wall 14 and an apertured wall 28 of a hollow filter retainer 24 shaped externally to conform to the interior of portion 12, the cavity 26 of the retainer being for receiving the syringe barrel for example. The yarn has a denier within the range of from 75 to 150, the wad having a density in the range of from 0.8 gm/cm<SP>3</SP> to 1.6 gm/cm<SP>3</SP>. The wall 28 may contain three apertures 30 arranged equiangularly about the axis of the circular wall and being of sectorial form, or it may be in the form of a grille. Alternatively the wall may have a central aperture surrounded by further apertures. Apparatus for producing the needle holder assembly comprises an elongated hollow transport tube 36, Fig. 4, having first feeding means 56 at the foremost end for positioning a needle holder 10 at one end of said tube, second feeding means 68 at the other end of the tube for positioning a filter retainer 24 at said other end of the tube aligned with a respective holder 10, and an open tube 52 extending vertically upwardly from a hole 50 in an intermediate upper portion of tube 36 for receiving a length of yarn 76 which is cut and allowed to fall into the tube 36, the yarn being prestressed and allowed to relax before entering tube 52 whereby it forms a tangled mass in tube 36. Suction is then applied to tube 36 through a vent hole in said tube, a hole 98 in the hollow body of a piston 90 behind the filter retainer 24, and the apertures 30. The suction causes the mass of yarn to move onto wall 28 of the filter retainer. The piston then moves the filter and the retainer to the other end of tube 36 and into the holder 10 where the filter is compacted. Instead of applying suction to the tube 36 air under pressure may be pressed into the tube to produce a similar flow of air.
Patent GB-1360243-A (GB)
Title: Semiconductor devices
IPC: H01L21/76
Filed: 1971-07-07
Abstract: 1360243 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 July 1971 [10 July 1970 10 Sept 1970] 31844/71 Heading H1K The collector electrode 23 of a bipolar transistor is connected to a part 9 of the collector region provided in the same major device surface 3 as the base and emitter regions 6, 7 but spaced therefrom by an inset region 11 of insulating material comprising part of a pattern 2. The collector contact part 9 is connected to the active part 8 of the collector region by a part lying beneath the inset insulating material 11, which part in the embodiment shown is provided by a heavily doped buried layer 32, and the basecollector junction is laterally bounded by the insulating pattern 2. Other circuit elements such as a resistor R or diodes and capacitors may be provided in other semi-conductor islands isolated from a substrate 55 carrying the epitaxial layer 56 within which the elements are formed by a PN junction, and laterally isolated from the island containing the transistor at least partly by the inset insulating pattern 2. As shown the insulating pattern 2 extends fully down to the substrate 55, but lateral isolation can equally be effected if the pattern 2 merely extends down to the depletion region associated with the substrate/layer PN junction 59. Highly doped buried channel-stopping regions 71 may be provided in the substrate 55 below the inset insulating pattern 2, and the lower part of the lateral isolation between islands may be provided by an extension of the regions 71 up into the epitaxial layer, the inset insulating pattern 2 then extending down only as far as the upwardly extended regions 71 or even only as far as the depletion regions associated with the extended regions. In a modification of the same idea highly doped regions are provided within the epitaxial layer by redistribution of impurities predoped, e.g. by ion implantation, into the layer prior to formation of the pattern 2. Part or all of the substrate 55 may ultimately be etched away, in one embodiment to the extent that the islands are entirely separated from one another. For a Si body the inset pattern is preferably made by selective oxidation of the body, e.g. after etching, or partial oxidation and oxide removal, to form grooves so that the top of the inset oxide pattern 2 finishes substantially flush with the main device surface. In one embodiment such preliminary recesses are provided only at the parts of the pattern 2 providing lateral isolation and not at the part 11 separating the collector contact part 9 from the rest of the transistor. Chemical conversion of Si to SiC is also mentioned, as is the use of SiC as the semi-conductor material with selective oxidation thereof to silicon oxide.
Patent GB-411751-A (GB)
Title: Improvements in and relating to protective covers for electric heating elements
IPC: H05B3/00
Filed: 1933-11-15
Abstract: A cover or covering for a flat electric heating element consists of a condensation product of glycerine and ethylene-glycol with phthalic and succinic acid.  A filling substance such as graphite, cork, and phenolaldehyde may be added.
Patent GB-716098-A (GB)
Title: Composite truss girder
IPC: E04C3/40
Filed: 1952-12-16
Abstract: 716,098. Girders ; roofs. NAAMLOOZE VENNOOTSCHAP ONTWIKKELINGMAATSCHAPPIJ POLYNORM. Dec. 16, 1952 [Dec. 18, 1951], No. 31877/52. Classes 20 (2) and 20 (4) Identical parts of metal girders each composed of two of these parts on either side of the central longitudinal plane of the girder, being mirror images of each other and adapted to be secured together at corresponding parts are constructed so that they can be closely piled in a compact stack, Fig. 10, before assembly. The girders comprise upper and lower longitudinals 6, Fig. 1, and a web 7. The girder parts are constructed of bars of channel section swith inclined sides having -flanges at the upper edges. The bars 8 which form the longitudinals 6 of the ,girder are welded to the bars 10 which form the web by extensions 11, the bars 10 being arranged with their channel openings in the opposite direction to those of the longitudinal bars 8. Two parts are assembled to ,form a girder by spot welding the flanges of the bars 8 at 15, and the bases of the channels at the bars 10 at 16, Fig. 2. The bars 10 may be welded direct without extensions 11, in which case ;the flanges of the longitudinals are cut away opposite the channels of the bars 10 to allow the girder parts to be stacked. In a modification the longitudinals and cross :bars are arranged with the channel openings facing in the same direction and are connected by junction plates. Fig. 1 shows a roof truss composed of girders 1, 2 constructed according to the invention and bolted together by junction plates 3, 4 connected by coupling bars ;5.
Patent GB-485204-A (GB)
Title: Improvements in plastic compositions
IPC: C04B28/02
Filed: 1936-11-20
Abstract: A plastic composition, consisting of a hydraulic setting agent such as cement, and latex or other rubber dispersion, contains, as filler, 25 to 50 per cent by volume of small pieces of wood of the order of 1/8 " to 1/16 " thick and 1/2 " to 3/16 " long.  The Provisional Specification refers to plastic compositions in general containing pieces of resilient vegetable fibrous material of the order of size mentioned above, and mention is made of plastic compositions of this nature containing natural or synthetic resins.  Specification 480,793 is referred to.
Patent GB-754188-A (GB)
Title: Improvements relating to the surface finishing of zirconium and alloys thereof
IPC: C23F3/06
Filed: 1954-11-04
Abstract: In a method of chemically polishing and brightening Zr and Zr-base alloys the metal is immersed in a mixture consisting of, by volume, 2-3 parts HNO3, 1-2 parts H2SO4, 1-2 parts HF and 4-5 parts water. Particularly useful is a mixture consisting of, by volume, 10-60 per cent, preferably 35 per cent, HNO3, 5-35 per cent, preferably 10 per cent, H2SO4, 7-30 per cent, preferably 15 per cent., HF and 20-50 per cent, preferably 40 per cent., water.  The strengths of the acids used are respectively, by weight, 70 per cent., 95,5 per cent., and 48 per cent, and the solutions are best used in the temperature range of room temperature to 90 DEG C.
Patent GB-319664-A (GB)
Abstract: 319,664. Landis et Gyr Soc. Anon. Sept. 25, 1928, [Convention date]. Tickets, issuing, cutting off, and recording number and value of. - Comprises a stamp or ticket issuing machine in which a key, corresponding to the number of stamps required, and a handle, operate the mechanism, a cutting and counting device being incorporated. When a key 23 (say the sixth) is pressed the metal band 30 sliding in slot 31 is moved against the action of a spring 33 to lock the key by a notch 25, its other end releasing a catch 36 on the bell-crank lever 34 from a rack 37. The lever 9 is rocked to carry round the arm 11 and its pawl 14 together with a pivoted pawl 19 on the arm 20 which loose on the. spindle 5, 5<1>, and the ratchet wheel 12, which through its attached pinion 13 and gear 65 drives drum 60 to feed the required number of stamps. The projection 15 on pawl 14 meeting the depressed key releases the ratchet wheel 12, due to pawl 14 also striking shoulder 22 of pawl 19. The stamp feed wheel 60 is thus released, while handle 9 is still carried on until the shoulder 56 on the arm 11 fits over the upper arm of bell-crank lever 67, when the lower arm is forced against a side of the polygonal plate 66 fitted to shaft of wheel 60, and which has as many sides as there are divisions for stamps on the wheel 60, causing the perforations after the last stamp for issue to come directly under the shears 71, 72 which are operated by the projection 69 on the arm 11 engaging the lever 70. When handle 9 is first moved and with it pawl 19, the supporting face 41 of the pivoted lever 40 is released, causing the tooth 39 under action of spring 45 to be lifted out of rack 37, and lever 42 pivoted at 43 to rise to the stop 76 under the pull of spring 46, the rack 37 being still held by tooth 36. Just before noses 15 and 21 of pawls 14, 19 strike the depressed key, the rectangularly bent edge 55, Fig. 5, of pivoted pawl 54 comes against the key extension 27. Further rotation of arm 9 causes pawl 54 to turn about its pivot which causes its top 57 to engage a recess 53 of the band 30 and move it contrary . to spring 33. This releases the key and also, through lever 34, pulls catch 36 from the rack 37 which now free of teeth 36 and 39 moves upwards between guides 38 under the action of a spring 50<1> causing spring 50, normally free of the supply 52 to brake it, the stamps being led over pulleys 59 feed drum 60 and through the aperture 61. The release of the key 23, releases the edge 55 from extension 27, which causes spring 56 to pull pawl 54 back to the normal position. When the arm 9 is released, it flies back under the action of spring 74, the pawl 14, which has been held in its position by roller 18 entering recess 17 strikes against pawl 19 restoring it into engagement with the ratchet wheel while the pawl 19 depresses the surface 41 of the lever 40 and releases the brake 50. The ratchet wheel is prevented from travelling backwards by the pawl 44 while any suitable counting mechanism 73 is actuated by the gear wheel 13.
Patent GB-380296-A (GB)
Title: Improvements in metal vapour rectifiers
IPC: H01J13/32
Filed: 1931-11-18
Abstract: 380,296. Metallic-vapour rectifiers. SIEMENS-SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Nov. 18, 1931, No. 32030. Convention date, Dec. 22, 1930. [Class 39 (i).] A rectifier comprises a number of cathodes and a number of anodes arranged in the form of rings or crowns and d a central hollow cooling body 6 which is fastened to the cover 9. The body 6 may have the shape shown in dotted lines and is fitted with ribs 10.
Patent GB-262947-A (GB)
Title: Improvements relating to time lag devices of the dash pot type
IPC: H01H71/44
Filed: 1925-12-18
Abstract: 262,947. Ellison, G. Dec. 18, 1925. Automatic circuitbreakers; retarding devices.-The, operation of a time-lag device normally controlled by a dashpot for use with electric circuit-breakers is entirely prevented under the action of forces in excess of a predetermined amount. The piston a of the dashpot is slidable on the operating-rod c but is normally held against a shoulder on the rod by a spring e abutting against a conical head d. Between the piston a and the conical head d are disposed radially-movable catches f which are pulled inwards by an annular spring j. When the rod c is subject to abnormal forces, the piston a moves towards the head d and forces the catch f outwards until they engage a shoulder i on the cylinder and lock the piston and rod. Shoulders h on the piston limit the radial movement of the catches.