baber/WOPTO huggingface dataset:
Patent GB-818986-A (GB)
Title: Improvements in or relating to sheet feed detecting devices
Inventor: BROIDO DANIEL
IPC: G06K13/067
Filed: 1955-10-11
Abstract: 818,986. Photo-electric control of conveyers. INTERNATIONAL COMPUTERS & TABULATORS Ltd., [formerly BRITISH TABULATING MACHINE CO. Ltd.]. Oct. 11, 1955, No. 28914/55. Class 40 (3). The regular positioning of sheets 10 moving along a conveyer 9 is checked photo-electrically and alarm and/or control action initiated when incorrect positioning occurs. In one embodiment the upper surface of the conveyer 9 is highly polished and a mirror 7 is placed parallel to, and above, a length thereof. Light beams from sources 5a, 5b and 5c are reflected back and forth and strike the conveyer 9 at points spaced by the correct spacing of the sheets before reaching photo-cell 8 via mirrors 6a, 6b and 6c. Thus when the sheets 10 are correctly spaced there are regularly spaced intervals when the light beams are all reflected from the surface 9 and the light directed on the cell 8 is of maximum intensity. A cam synchronized with the conveyer drive is arranged to feed the potential developed by the current through the cell at such times to a comparison device similar to that described below and an erroroperated device. If one or more of the sheets are displaced the peak light intensity reaching the cell is diminished and the error device operated. In a modification, light sources 5d, 5e, 5f and 5g spaced apart a multiple of the sheet spacing direct beams of light downwards through apertures 17d, 17e, 17f, and 17g to photo-cells 18d, 18e, 18f and 18g. With correct spacing of the sheets and cam switch 23 closed in synchronism with the presentation of a clear light path from each source to its respective cell the potential applied to condenser 22 from the switch is almost the same as that continuously applied through resistor 20 from constantly illuminated balancing photo-cell 18x. There is thus no output over line 25 to actuate the error device. If, however, one or more of the sheets are displaced then, when the cam switch closes, at least one of the photo-cells will be obscured and a positive pulse will be fed out over line 25 to operate the the error device. Specification 751,931, [Group XIX], is referred to.
Patent GB-445549-A (GB)
Title: Improvements in and relating to the heating of hydrocarbon oils
IPC: C10G9/20
Filed: 1934-10-09
Abstract: <PICT:0445549/III/1> Oils are distilled or cracked by passing the oil through a coil heated only by convection, then through a coil heated only by radiation and then through a coil heated by convection only, the second and third mentioned coils being heated by independent sources of heat and the first by a mixture of gases from both sources.  The oil may also be passed through a further coil heated by radiant heat from the source of heat used for heating the third coil. A furnace 1 is divided by a wall 2 into a pair of combustion chambers 3, 4 containing burners 6 and 5 constituting the first and second sources of heat.  The chambers are provided with walls 7, 8 dividing them into radiant and convective heat zones.  The oil entering through a pipe 15 flows first through convection coils 16, 16a and a radiant tube bank 10 passing thence to a bank of soaking tubes 18 in the convection zone and returning to a bank 18a in the radiant zone but protected by the bank 18, before leaving the chamber 3 to enter a flash evaporator 20.  The vapours evolved then pass into the second chamber 4 where they are heated convectively in banks 23, 25 and by radiant heat in banks 8, 11, 11a, 25, and leave the furnace through a pipe 26. The banks 23, 25 are heated solely by gases from the burners 6 but the banks 16, 18, 16a are heated by gases from both sets of burners.  The gases leaving the furnace may be used to heat an economizer bank 30 for preheating, raising steam, &c.  In a modified form one section of the furnace is used for the preliminary drying and heating to cracking temperature and the other section is used for the soaking stage.  The plant can be used for reforming processes and in conjunction with the Gyro cracking process, e.g. as described in Specification 412,461.
Patent GB-857548-A (GB)
Title: Improvements in or relating to direct-current high voltage cables
IPC: H01B7/28
Filed: 1957-09-13
Abstract: 857,548. Cables. SIEMENS-SCHUCKERTWERKE A.G. Sept. 13, 1957 [Sept. 14, 1956], No. 28921/57. Class 36 A high voltage D.C. cable comprises coaxial negative and positive cores 1 and 3 separated by insulation 2 which is sensitive to water, the positive core being surrounded by insulation 4 which is very much less sensitive to water and is substantially waterimpermeable, the whole being enclosed in a non-metallic protective sheath 5 of greater mechanical strength than the insulation 4 but not completely water impermeable. The insulation 2 may comprise p.v.c. or an impregnated fibrous material such as paper, and the insulation 4 may be polythene. The sheathing 5 may be of a vinyl chloride polymer or may be a mixture having a high degree of water impermeability and based on polyisobutylene or butyl rubber having a high carbon black content and may be enclosed in an additional sheath 6 of mechanically stronger material, e.g. p.v.c. An oil retaining layer of metal or plastic foil 7 may be applied over the insulation 2.
Patent GB-223421-A (GB)
Title: Improved means for automatically compensating for the wear of brake-blocks
IPC: B61H15/00
Filed: 1923-11-16
Abstract: 223,421. Macdonald, K. Nov. 16, 1923. Compensating f o r wear. - In means for taking up slack in the brake rigging caused bv wear of the brake blocks, wherein the point of connection of the brake lever to the brake rod is automatically varied as the brake blocks wear, the threaded end of the brake rod c is engaged by a nut g formed as a worm wheel and engaged by a worm h mounted on an extension f<1> of a block f carried between the two arms of the brake lever a. The spindle j of the worm h also carries a ratchet wheel k engaged by an anehoring-pawl k<1> and a pawl k<2> carried on an arm l pivotally mounted on the spindle j and having pivoted to it a link m slotted to receive a pin n on a fixed bracket o provided with a threaded stud p. When, in an application of the brakes, the angular movement of the lever a is such that the link m engages the stud p before the blocks are applied to the wheels, the continued movement of the members a, f results in an angular movement of the arm l about its pivot j, so that the pawl k<2> slips on the tooth of the ratchet wheel k. On now releasing the brakes, the pawl k<2> drives the ratchet k and the worm h to rotate the nut g so that the brake rod is shortened. The stud p may be dispensed with, in which case the pin n limits the movement of the link m. The invention is shown applied to the brake rigging of vacuum-brake apparatus.
Patent GB-1274776-A (GB)
Title: Polymers of bis-oxazoline compounds and process for their preparation
Inventor: TOMALIA DONALD ANDREW
IPC: C08G75/02
Filed: 1970-06-16
Abstract: 1,274,776. Polymers from oxazolines; curing epoxy resins. DOW CHEMICAL CO. 16 June, 1970 [16 June, 1969 (2); 19 June, 1969], No. 29055/70. Headings C3B and C3R. Polymers are obtained by reacting a di-2- oxazoline with a polythiol or hydrogen sulphide. The di-2-oxazoline may have the formula where X is -(CH=CH)-, or R<SP>11</SP>-X<SP>11</SP>-R<SP>11</SP>, R is hydrogen or alkyl, X<SP>1</SP> is ethylenoxy or propylenoxy, R<SP>1</SP> is hydrogen or alkyl, X<SP>11</SP> is oxygen or sulphur and R<SP>11</SP> is alkylene, arylene or aralkylene. The polythiol may be a dithiol of formula HS-A-SH, where A is alkylene, arylene, aralkylene or cycloalkylene and the polymer may have units of formula where m is 0 or 1. The polymers may be used to cure epoxy resins. Examples are given. Uses.-Films, castings and fibres.
Patent GB-1086993-A (GB)
Title: Forging method
Inventor: LIBIK ALBERT
IPC: B21J9/08
Filed: 1965-07-08
Abstract: 1,086,993. Upsetting. " TECHNOIMPEX " MAGYAR GEPIPARI KœLKERESKEDELMI VALLALAT. July 8, 1965, No. 29056/65. Heading B3H. A forging press includes a frame 10 within which are mounted dies 13a and 13b which are insulated from the frame and act as poles for heating a workpiece 15. The upper die 13b is held electromagnetically or by suction to a movable workhead 11 while the lower die is fixed. The dies are provided with water cooling channels 17a and 17b, electric terminals 14a and 14b, refractory facings 16a and 16b, and insulating discs 18a and 18b. In an example a chromium nickel steel workpiece of 10 kgms. is heated by a 3000 amp. current at 3 volts to a forging temperature of 1280-1300‹ C. in 1¢ minutes, the cross-head 11 then being lowered to shape the workpiece. Before the dies 13a and 13b meet the current is switched off to prevent short circuiting.
Patent GB-648182-A (GB)
Title: Improvements relating to solid fuel fireplaces
Inventor: NEWMAN REGINALD JOHN
IPC: F24B1/191
Filed: 1948-11-09
Abstract: 648,182. Open-close fireplaces. NORTH THAMES GAS BOARD. Nov. 9, 1948, No. 29116. [Class 126] A device to enable an open fireplace to be closed or remain open comprises an imperforate sheet metal pressing to be detachably secured at the front of the grate to form an upwardly extending fuelretaining front wall having a pivoted flap at its upper end, the side of the wall being pressed over at right angles and flanged to make a seal with the sides of the fireplace. A fuel retaining wall 1 the bottom edge of which carries pins 3 for engagement with slots in the top of the fret of a fireplace is formed from a metal pressing. The wall 1 is box-like having sides 5 with side flanges 6 and a top 8 to which is pivoted a sheet-metal flap 10 which may rest on the fuel in the grate. Specifications 539,010 and 578,796 referred to.
Patent GB-1194002-A (GB)
Title: Method and Apparatus for the Production of Diagonally Corrugated Sheet Material
Inventor: MUNTERS CARL GEORG
IPC: F28F25/08
Filed: 1967-06-23
Abstract: 1,194,002. Corrugating-webs. C. G. MUNTERS. 23 June, 1967 [22 July, 1966], No. 29176/67. Heading D1S. A fibrous web 16, e.g. a paper, asbestos o:r cellulosic fibre web. impregnated. with a liquid, is corrugated by feeding the web 16 into one end of a perforated mould 34 which moves longitudinally in a closed path and comprises a series of grooves 42 extending across the mould diagonally to the line of movement thereof, progressively bringing the web 16 into engagement with successive grooves 42, moving the web retained in the grooves 42 to thereby form a continuous series of corrugations extending across the web diagonally to the sides thereof, and heating the web while engaged in the grooves 42 to dry the web. As shewn in Fig. 1, the web 16 is fed from' a roll 10 into an impregnating section A comprising a trough 18 containing, for example, an aqueous solution of melamine in which the liquid may contain a manor amount of alcchol and a catalyst. After passing twice through the solution, excess solution is removed from the web 16 by scrapers 28 and by squeeze rollers 32 spring-urged together and of which one has a polished steel surface and the other a synthetic rubber surface. The web 16 then passes onto a lower corrugating belt 34 comprising a series of perforated plates 38, Fig. 3, each of which includes a frame and an inner portion having diagonal parallel ribs and grooves 42 either formed by a continuous plate 44, Fig. 3, or by individual bent plate elements separated from each other, Fig. 9 (not shown). The plates 38 are connected to driven chains 48 by rollers 66 secured to one end thereof and which roll on a guideway. Rollers 70, free of the chains 48, are secured to the other end of each plate 38. A hood 72, Fig. 1, is positioned beneath the upper run of the corrugating belt 34 and is connected by a duct 74 to an exhaust fan 76 connected to funnel 78. After one plate 38 has passed the chamber 72 its rear rollers 70 descend through openings 82, Fig. 3, and are guided by portions. 84, 86 whilst the rollers 66 pass around sprockets 52 and the plate is returned to its starting position with the rollers 70 running up guide portions. 90 whilst the rollers 66 pass around sprockets 50. A corrugating head 100, Figs. I and 7, is mounted above the belt 34 and comprises a plurality of battens 110 parallel to the ribs and grooves 42 and extending between and pivotally connected to conveyor mechanisms 101, 102. The battens 110 cooperate with the grooves 42 to corrugate the web 16. A radiant heater 122 overlies the belt 34 and may comprise electric or gas heated elements. The corrugated web 135 is conveyed by rollers 136, 138, 140, preferably at an upward angle, onto a belt 144. The web is severed into narrower widths by at least one saw 148, the resultant waste being exhausted through a hood 149, a conduit 150 and a fan 152. The web is then cut transversely by a knife 156 into sheets 158 which fall into a bin 160.
Patent GB-190321-A (GB)
Title: Improvements in and relating to poultry houses
IPC: A01K31/02
Filed: 1921-11-03
Abstract: 190,321. Nation, H. F. Nov. 3, 1921. Operating doors by springs, weights, and by treadles.-The perch M moves upwardly when the fowls alight therefrom, and the door B is thereby opened and food distributed. The perch is supported at one end on a spring N and is connected by a cord R with the pivoted latch F, which is released from the catch D when the perch rises. A weight W then opens the door by means of a cord R<1> passing over a pulley C. A cord R<2> is released by the movement of the door and allows a catch P<2> to be actuated by a weight Y, releasing the door B<1> of the food container G'. The food falls on a distributor V.
Patent GB-264282-A (GB)
Title: Improvements in or relating to air-heating apparatus
IPC: F23C99/00
Filed: 1925-11-20
Abstract: 264,282. Owen, B. J. Nov. 20, 1925. Addition to 235,498. Air-heating furnaces.- The air heaters of the parent Specification are modified for the use of crude fuel oil by having one or more combustion chambers c communicating with or forming part of the sinuous heating pipes or tubes d and each provided at the inlet with a low-pressure burner e fed by gravity with crude oil through a pipe f from a tank e mounted on the upper cover plate of the heater, the oil being atomized by an air blast supplied through pipes g<2>. The combustion chambers are lined with fire-clay and may comprise furnace tubes extending across the compartments c<1>, c<2>, c<3>, of the heater and terminating in boxes a<1> communicating with the lower branches of the heating pipes d, or they may be formed by providing the heating pipes with enlarged lowermost branches directly connected to the pipes d by bends or elbows. The oil supply pipe f may extend through the interior of the heater, and the atomizing air blast may be produced by a fan driven from the shaft of the main fan which forces the air to be heated through the heater.
Patent GB-350357-A (GB)
Title: Improvements in aluminium alloys and method of producing the same
IPC: C22C21/12
Filed: 1930-09-30
Abstract: An aluminium alloy containing copper, chromium, and molybdenum is made by melting the aluminium and when it is at a bright red heat adding the other metals in the order stated.  Some titanium may be added, and iron may be present as an impurity.  The preferred proportions are as follows:-85-96 per cent of aluminium, 3-10 per cent of copper, 0,75-5 per cent. of chromium, 0,1-5 per cent of molybdenum, and 0,05-1 per cent of titanium.
Patent GB-383725-A (GB)
Title: Improvements in or relating to ball bearings
IPC: F16C33/64
Filed: 1931-10-22
Abstract: 383,725. Making hoops and rings. SCHLAA, F. I., 12A, Gerlingserweg, Iserlohn, Westphalia, Germany. Oct. 22, 1931, No. 29363. [Classes 83 (ii) and 83 (iv).] Rolling annular bodies.-Rings for ball thrust races in which the material is given a radial fibrous structure are made by flattening a tubular blank in a rolling process. Tubular blanks such as 1, Fig. 1, with the fibres in an axial direction are gradually dished by a rolling process and finally given the form 9. A series of conical roll mandrels such as 2, Fig. 3, are used to effect the operation, the blank being mounted in a freely rotatable carrier 3 which is moved out of centre to force the blank 37 against the roller. The blank is first placed over the tail-stock 27 of a machine for effecting the rolling operation, Fig. 6, and is fed by a spring, on release of a catch 34, to the conical roller 2, the projecting end 27 of the tailstock being pushed within the body and a collar 28 finally centring the blank over the roller 2 ; a clutch 47, Fig. 5, is simultaneously thrown in through the linkage 39, 54, 50 which sets the shaft 57 rotating and hence the lay shaft 36, a cam 35 fixed on the end of the latter serves to tilt the housing of the freely rotatable matrix 3 about the axis 48, Fig. 9, and so compresses the blank between the matrix and the continuously rotating conical roller. The roller is secured to one end of a spring-pressed rod 26 the other projecting end of which is moved to the left, Fig. 6, at the end of a rolling operation by a lever 25 operated by a cam 40 on the shaft 36, this acts as an ejector to remove the work-piece from the matrix. A roll mandrel with vertical working surface or simply smooth rollers give the ring its final shape 9.
Patent GB-227963-A (GB)
Title: Improvements in supports for portable machinery and driving-motors therefor
IPC: H02K5/26
Filed: 1923-11-21
Abstract: 227,963. Gardiner, W. A. Nov. 21, 1923. Machinery, securing to beds or foundations.- A base-plate is provided with an adjustable support for a motor and clamps for holding machines driven by the motor. An electric motor c is secured to a bracket d which is clamped to a pillar b carried by a pedestal a on the plate f and which drives through reducing gearing an ice cream freezer m or other machine. Clamps for securing the machine comprise sleeves k with hooks l mounted on pivoted screwed rods g. The clamps are fastened by hand-operated nuts i. The Provisional Specification described a rack- and-pinion adjustment for the bracket d.
Patent GB-682063-A (GB)
Title: Improvements in or relating to facsimile recording apparatus
IPC: H04N1/23
Filed: 1947-11-04
Abstract: 682,063. Recording-apparatus. FAXIMILE, Inc. Nov. 4, 1947, No. 29409/47. Drawings to Specification. Class 106 (iv). [Also in Groups XXXVI and XL (b)] In a recording arrangement described in connection with a copying-telegraph receiver in which an electrode includes a metal, for example, iron, vanadium or cerium associated with a recording sheet impregnated with a reducing agent of the polyhydroxyphenolic group, such as catechol, forming a colour lake with metal electrolytically deposited from the electrode, means is provided to heat the record carrier to a temperature in the range of 250‹ to 450‹ F. to dry it and additionally to complete the reaction in order to deepen the colour of said record. In the arrangement described the recording sheet carrying the electrolyte is drawn past a bar co-operating with a helical electrode on a rotating drum and subsequently past a heater arrangement which may be adjusted in position and comprises an adjustable thermostatic control device. The lakeforming compound with which the sheet is impregnated may be supplemented by small amounts of oxalic or maleic acid-or other acids or anti-oxidants acting as charge neutralizers. The purpose of the heating is to increase the oxidation of the deposited metal and to nullify or reduce the reduction of the metal by the catechol or other reducing agents in order to produce a greater number of ions corresponding to the higher valency form of the metal which is mainly responsible for the production of the colour lake. Specifications 579,350 and 585,739 are referred to.
Patent GB-749824-A (GB)
Title: Improvements in or relating to methods of metal-plating non-conductors
IPC: C23C18/50
Filed: 1952-11-21
Abstract: Objects which are, at least superficially, non-conductive are coated with nickel or cobalt or both by immersion in a solution containing a salt of at least one of the platinum group metals for a time, dependent on the concentration and temperature of the solution, sufficient to activate the surface catalytically, thoroughly cleaning to remove adhering previous metal salt solution and then immersing in a warm solution of a hypophosphite and a salt of nickel or cobalt or both.  The object may first be cleaned by application of French chalk followed by rubbing, or by p  the use of a solution of stannous chloride in aqueous hydrochloric acid.  In examples, after immersion in a solution of palladium chloride and hydrochloric acid, objects of wood and of urea-formaldehyde resins, glass and ceramic tubes, and aluminium reflectors precoated with a urea formaldehyde condensation product and a non-drying alkyl resin, are plated by immersion in a solution of nickel chloride, sodium hypophosphite and sodium hydroxyacetate; wax objects are plated by immersion in a solutions of nickel and cobalt chloride, sodium hypophosphite, sodium citrate and ammonia; and ceramic objects are plated by immersion in a solution of cobalt chloride, sodium hypophosphite, sodium citrate, ammonium chloride and ammonia.  The coating of leather, mica, natural and artificial rubber and lacquered glass is also referred to.  After coating with nickel or cobalt or both, additional coating may be applied electrolytically.
Patent GB-1269402-A (GB)
Title: Device for connecting various levels of a multi-storey construction
IPC: E04H6/10
Filed: 1969-06-10
Abstract: 1,269,402. Vehicle gangways. CIREB S.A. 10 June, 1969 [12 June, 1968; 6 May, 1969], No. 29480/69. Heading B7J. [Also in Division B8] A ramp for connecting a floor 1 with either of a pair of superposed floors 2, 3 comprises a pair of ramp sections 4, 5 which are pivotally supported at 4a, 5a respectively and which are interconnected so as to be movable by a motor 9 between the full-line and broken-line positions shown. The ramp sections 4, 5 are supported, towards their outer ends, by rollers mounted at the outer ends of arms 7, 6 which are secured to rotatable pinions 13, 12. The pinion 13 is connected to the pinion 12 by a chain 8 and to the motor 9. In a modification, Fig. 2 (not shown), arms 6, 7 are provided at both sides and are interconnected by cross-beams, and in a further modification, Fig. 3 (not shown), the ramp sections are constituted by a pair of tracks supported on the cross-beams.  In a further embodiment, Fig. 4, a ramp assembly comprising pivotally supported ramp sections 39-41 is provided for connecting a floor 31 with any of three superposed floors 32-34. Rotatable arms 35-37 and a sector 38 and a fixed stop 42 are provided for supporting the ramp sections 39-41. On rotating the arms 35-37 and the sector 38 through 180 degrees in a counterclockwise direction from the position shown, the ramp section 39 is lowered into alignment with the ramp section 41, and the ramp section 40 is raised, Fig. 5 (not shown). On rotation through a further 180 degrees, the ramp section 41 is raised and the ramp section 39 is lowered, Fig. 6 (not shown).
Patent GB-689600-A (GB)
Title: Improvements in grinding mills of the single cylinder type
IPC: B02C4/34
Filed: 1950-12-01
Abstract: 689,600. Roller-and-breast mills. GENVRAIN, R. J. E. Dec. 1, 1950, No. 29510/50. Class 59 A grinding bar 3 is urged against a cylinder 2 by means of one or more pressure-distributing blocks extending substantially along the entire length of the grinding bar and each comprising two parts 7, 10 movable relatively to each other, the part 7 being operatively connected to an adjustable clamping screw S and the part 10 being pressed against the grinding bar by means of springs 9, or a strip or blocks of rubber or the like extending continuously or substantially continuously throughout the length of the distributing block. The part 7 is provided with studs, the heads 13 of which are movable in slots 12 in uprights 11 formed integrally with the part 10. The parts 7 are operatively connected to pointers 14 movable over a pressureindicating dial 15 common to the two distributing blocks. The parts 7, 10 may be reversed in position.