baber/WOPTO huggingface dataset:
Patent GB-995358-A (GB)
Title: Improved implement for crushing forage crops
IPC: A01D82/00
Filed: 1962-03-08
Abstract: 995,358. Hay conditioning machines. MASSEY-FERGUSON Inc. March 8, 1962 [May 5, 1961], No. 8960/62. Heading B2A. A hay conditioning machine comprises a pair of crushing rolls 20, 21 carried by a wheeled vehicular frame 10, a spring 60 serving to press the roll 21 against the other roll, and a lifting mechanism which, during the raising of the frame from the operative to the transport position, initially causes the spring pressure to be relieved without moving the rolls apart. In the embodiment shown, the lifting mechanism causes first the spring pressure to be relieved and then the rolls to separate. A cross member 10 of the frame 10 is provided with brackets 24 carrying the lower roll 20 and brackets 40 supporting in bearings 39 a rock-shaft 38 which has arms 37 supporting at their outer ends the axle 36 of the wheels 35 of the frame ; the frame is raised by swinging the rock-shaft about the axles 36 by means of a hydraulicallyoperated ram 47 and arm 49. The upper roll 21 is carried by bell-crank levers 25 which are pivoted on the brackets 24 by pins 30 and urged towards the roll 20 by tension springs 60 connected between them and curved-shaped arms 65 pivoted at 66 on arms 61 on the rockshaft 38. When the frame 10 is in the lowered position shown in Fig. 3, the pins 66 are below dead-centre in relation to the spring; this arrangement ensures a self-locking action when the frame reaches its lowermost position under the action of its own weight after release of the hydraulic pressure, an adjustable rod 50 limiting the downward travel of the frame by means of an adjustable stop 54 abutting a bracket 53 on the frame. Slotted arms 70 are connected at the pivots 66 to the arms 61 and co-operate with pins 72 disposed on the levers 25. On applying hydraulic pressure to the ram 47, the whole assembly is moved anti-clockwise about the axles 36 until lost motion is taken up by the arms 70, pressure of the springs 60 being relieved during this action ; continued movement of the assembly results in the arms 70 lifting the roll 21 clear of the roll 20. The frame 10 has a draw bar 11 for connection to a tractor and a drive-shaft 15, Fig. 5, which is geared with the power take-off shaft of the tractor, is arranged to drive the rolls through a pulley 76 and belt 79, the latter being adjustably tensioned by a spring-pressed idler 80. In a modification, the roll separating means may be omitted.
Patent GB-288269-A (GB)
Title: Improvements in cameras for photographing the eyeball
IPC: A61B3/14
Filed: 1928-03-26
Abstract: 288,269. Zeiss, C., [Firm of]. April 6, 1927, [Convention date]. Eye-examining apparatus.-In order to photograph an eye-ball without interference by reflections of the source of light at the cornea, a camera casing a is provided with an illuminating device having a reflecting surface between the objectives b. The eye is illuminated by light from a lamp e passing through a condenser f, prisms g, h and a projecting lens i secured to the prism h, the lens i forming the image of a diaphragm on the condenser f in the pupil of the eye. A similar reflecting system m, n and a telescope having an objective j as shown is utilized as a finder.
Patent GB-710481-A (GB)
Title: Improvements in and relating to a colour photographic material and process
Inventor: VERKINDEREN HONORE
IPC: G03C7/30
Filed: 1948-03-31
Abstract: 710,481. Colour photography. GEVAERT PHOTO-PRODUCTEN N. V., and CHROMART FILM INDUSTRIES, Inc. March 30, 1949 [March 31, 1948], No. 9094/48. Drawings to Specification. Class 98(2) A multilayer material comprises two light sensitive silver halide emulsion layers sensitized to the same region of the spectrum and a third such layer sensitized to another region of the spectrum, all of these layers containing colour couplers, the couplers of the first two layers being different. Thus the first two layers may be sensitized to red and the third to green or vice versa, and one of the first two layers may contain a cyan coupler and the other one and also the third layer a magenta coupler; or one of the first two layers a yellow coupler, the other one a magenta coupler and the third layer a cyan coupler. The material may have a fourth emulsion layer sensitized to the same region as the third layer but containing a coupler different from that of the third layer. The material is used for printing from a colour negative with the purpose of obtaining a positive with more colours than the negative, thus in a single example directed to the production of a positive of three-coloureffect from a two colour negative, and in which sensitizing dyes and couplers used are as described in the B.I.O.S. Final Report No. 1355, Item No. 22; a negative film with a red sensitized-magenta coupler layer next to the support, a yellow colloidal silver filter layer and then a green sensitizedcyan coupler layer is exposed, developed directly to colour, hardened, bleached and fixed, and is copied on to a positive film with lower green sensitized-cyan coupler, middle red sensitized-magenta coupler and upper red sensitized-yellow coupler layers, and processing for the positive is the same as for the negative. The relationship between the amounts of colour produced in each of the layers sensitized to the same region of the spectrum may be influenced by use of an appropriate colour filter or by variation of the speed of the layers. Specifications 496,116 and 682,061 are referred to.
Patent GB-809466-A (GB)
Title: Improvements in and relating to the coating of sheet materials
IPC: B05C9/14
Filed: 1956-03-26
Abstract: Non-fibrous organic sheet material which may be in the form of films, webs or sheets, e.g. regenerated cellulose, polyester and cellulose ester film, is coated with a film-forming composition (e.g. polyethylene, nitrocellulose, cellulose acetate <PICT:0809466/III/1> or vinylidene chloride copolymers) by dipping the sheet material in a solution of the film-forming composition maintained at an elevated temperature, removing excess solution therefrom and drying, the sheet material being exposed to an atmosphere containing the vapour of the solvent for the film-forming agent prior to dipping, and on entering the solution being at a temperature within 10 DEG  C. of the temperature thereof.  The sheet material may be heated prior to meeting the solvent vapour and may also be maintained for some time in contact with the vapour at a temperature within 10 DEG  C. of the solution temperature after it is coated.  The excess coating may be removed by doctor blades or rollers as close as possible to the surface of the solution.  The sheet material may be re-humidified after drying by exposing it to the action of water vapour.  The polyethylene composition may contain natural or synthetic uncured rubber, waxes, oils, resins, dyes, pigments, oxidation inhibitors and mineral fillers such as calcium carbonate or titanium dioxide, the preferred solvent is toluene though xylene, mesitylene, petroleum ether, benzene and heptane may be used.  As shown, a web of uncoated regenerated cellulose film 10 enters the drying chamber 20 (heated by warm air from blower 22) passes through a slot 15 into the vapour containing tank 30 and thence into the heated solution in the jacketed tank 17, around roller 18, past doctor blades 19, through the tank 30 and out into the drying section 20.  One side only of the film may be coated by only partly immersing the roll 18 in the liquid and replacing one of the doctor blades by a heated roller. The solvent vapour which escapes through the slots 15 may be recovered from the effluent air at 24.  The film passes over roller 26 into humidifying chamber 25 wherein water vapour is generated at 28 and sucked through the duct 29.  From thence the film is wound on roll 32.
Patent GB-699834-A (GB)
Title: Improved means for binding together periodicals, booklets and the like in files
IPC: B42F11/02
Filed: 1951-04-23
Abstract: 699,834. Filing periodicals &c. MENADUE, F. B. April 23, 1951 [May 1, 1950], No. 9435/51. Class 146 (i). Means for binding publications together to form a temporary or permanent file, comprise a strip 1 of metal or other suitable solid material adapted to fit between adjacent pages of an issue 3, 3A of a publication and having one or more off-set lugs 2, to protrude through a corresponding slot formed in the back of the issue, each formed with a slot 5, a rubber or other relatively flat, flexible and stretchable band 4 being provided of slightly greater width and/or thickness than the slots 5 so that the band 4 can be pulled through the slots 5 owing to the stretching thereof and on release returns to its original state and grips the edges of the slots to bind the strips 1 together. Strips 1 having only one lug 2 may be used, in which case the ends 1A are extended, and a number may be used with larger publications, but preferably a single strip with two or three lugs 2 is used. The band 4 has pointed ends 4A to facilitate insetting through the slots 5. For binding single sheets, 3A, they are just bound by a staple 6 with a folded strip 7 of cardboard therebetween and provided with slots for the passage of the lugs 2. End covers 8 may be provided and may be secured with the end issue 3 by an extension flap 8A or may be fastened to the cover of the end issue. The ends of the band 4 may be secured by a clip or fastener or, as shown, may be secured by passing through slots 9 in the covers 8 and may then pass under a strip secured to the inside face of the cover. The bands 4 may be of natural or synthetic rubber or elastomers of polyvinyl chloride, alone or combined with fibrous material, for example rubber thread braided with cotton or the like, or fibre cord or fabric or fine wire constructing coated or impregnated with rubber. Stretchable leathers may be used. With thermoplastics, the band may be heated before drawing through the slots, to increase the resilience. Fine serrations may be provided on the edges of the band to resist slippage.
Patent GB-914126-A (GB)
Title: Improvements in or relating to the production of thin films
Inventor: WILCOCK WILLIAM LESLIE
IPC: H01J43/10
Filed: 1960-03-17
Abstract: In order to relieve stresses in a thin film supported on a fragile substrate caused by contraction of the film relative to the substrate, the film is subjected to electron bombardment either during or after the cooling which results in its contraction.  The method may be applied to film-type dynodes of the type comprising an evaporated film of potassium chloride deposited on an electron-transparent substrate of aluminium oxide supported by an annular glass frame.
Patent GB-1142788-A (GB)
Title: Disc brakes
IPC: F16D66/02
Filed: 1966-03-04
Abstract: 1,142,788. Disc brake. DUNLOP CO. Ltd. 4 March, 1966 [5 March, 1965], No. 9468/66. Heading F2E. A disc brake has a thrust member, forming part of the brake-applying mechanism, provided with an electrical contact which is movable towards the brake disc so as to be engageable with the latter when the friction element is sufficiently worn. The thrust member comprises a cup piston 1 having an insulating sleeve 5 disposed in the piston skirt and fitting into a recess 8 in the backing plate 2 of the pad, to prevent the piston rotating in its cylinder. A contact pin 6 surrounded by the sleeve is connected by a lead 7 to an electrical circuit including a buzzer or coloured warning signal. The pin also acts as a mechanical stop limiting the movement of the friction element towards the disc. The parts shown in the drawing are duplicated on the opposite side of the disc to provide an opposed cylinder brake.
Patent GB-918664-A (GB)
Title: Improvements in and relating to x-ray tubes
Inventor: GRAY CYRIL
IPC: H01J35/04
Filed: 1960-03-17
Abstract: 918,664. X-ray tubes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 22, 1961 [March 17, 1960], No. 9503/60. Class 39 (1). An X-ray tube with a flattened envelope portion 2 has a cathode 20, Fig. 2, provided with an opening 18 through which X-rays generated at the target anode 10 in one wall of the envelope portion pass to the window 15 in the opposite parallel wall or, Fig. 4, there are two cathodes 28 between which the X-rays pass. The cathodes are provided with focusing electrodes. In Fig. 2 the cathode 20 is a filament supported in a toroidal recess 17 of a cathode throat 16, acting as a focusing electrode by a number of pins, and the cathode structure 16 is supported by a pair of legs 19. In Fig. 4 each cathode 28 lies on the axis of a concave focusing semi-cylindrical shield 29. In each embodiment the anode is water-cooled and the opening in the cathode of Fig. 2 or the gap between the cathodes of Fig. 4 may be covered with a sheet of material, or a wire grid, permeable to X-rays, in order to protect the window from secondary electron emission from the target.
Patent GB-1016599-A (GB)
Title: Improvements in or relating to timing circuits for electric welding apparatus
IPC: B23K11/24
Filed: 1964-03-06
Abstract: 1,016,599. Supply systems for stud welding. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 6, 1964 [March 11, 1963], No. 9601/64. Heading H2H. A timing circuit for a stud welder comprises a transformer 1 having a drooping load characteristic supplying electrodes 2, 5, also a rectifier 6 across the output of which is connected a potential divider 14 feeding a capacitor 33 and a bridge 10-13 having two normally conductive Zener diodes which maintain a transistor 15 conductive, and a relay 17, 18 energized with contact 17 open. A capacitor 19 charged through diode 20 feeds another circuit in which a transistor 29 is non-conductive and a transistor 31 is conductive energizing a relay 8, 9 with contact 8 closed. When push-button 7 is closed a contactor 3, 4 supplies current to the electrodes, hence the transformer secondary winding voltage falls, thus Zener diodes 10, 11 block and contacts 17 close. When a capacitor 26 has discharged partially through resistors 24, 25 the transistor 29 conducts blocking transistor 31, hence de-energizing the relay 8, 9 and contactor 3, 4.
Patent GB-931450-A (GB)
Title: Improvements in telecine apparatus
Inventor: ASKEW GERALD HAMILTON
IPC: G03B41/08
Filed: 1960-03-18
Abstract: 931,450. Television. BUSH & RANK CINTEL Ltd. March 20, 1961 [March 18, 1960], No. 9650/60. Class 40 (3). In an arrangement for scanning a continuously moving cinematographic film to produce corresponding television signals either by projecting an image of the film on to a picture signal generating tube (Fig. 1, not shown) or by projecting an interlaced scanning raster from a flying-spot scanner 24 (Fig. 12) through the film 1 and on to a photo multiplier 25, a motion arresting rotating transparent polygonal prism 8 being employed in each case, differences in the brightness of adjacent lines due to imperfections in the optical system are reduced by limiting the total amount of light by means of opaque members 19, 20 (see also Fig. 5). Such imperfections, mainly spherical aberration, result in a variation of the distance between the centres of the series of " patches of light " 15, 16, Figs. 2 and 3 (images of the aperture of lens 6 formed by lens 7 via the prism 8) as the prism 8 rotates this distance varying from the perfect case in which it is equal to the distance d (Fig. 2) between the knife edges 9, 10 to a distance d+ #d (Fig. 3) which depends on the distance of the point considered from the optic axis of the system and therefore also varies as the prism 8 rotates. Fig. 6 shows how the introduction of one of the opaque members, in this case 19, results in the production of a " shaded " area 21, thus preventing light from the portion of the " patches " 17, 18 obscured thereby from taking part in the scanning operation. When the separation of members 19, 20 is equal to that of the knife edges 9, 10 (as modified by lens 11), the obscuration produced falls from a maximum for marginal image points to zero for points on the optic axis which is the derived result. A plurality of pairs opaque members such as 26, 27 and 28, 29 (Fig. 9) may be employed instead of a single pair. When a single pair is employed (see Fig. 11) they may be rotated (in opposite directions) about their longer axis by means of gears 34, 35, pinion 342, idler gear 36 and a gear 37 driven by the prism 8, the arrangement being such that the opaque members 30, 31 rotate at half the rate at which the facets of the prism replace each other in the knife-edge gate 9, 10 and present minimum obstruction when a facet lies parallel to the plane of the knife edge. To reduce variations in the mean level of the signals produced due to the presence of the opaque members, a compensating waveform of triangular shape and of picture repetition frequency may be employed.
Patent GB-254420-A (GB)
Title: An improved tire protector and anti-skid device
IPC: B60C27/00
Filed: 1925-04-14
Abstract: 254,420. Markwick, F. April 14, 1925. Tread bands, projections, and surfaces. - A tread band, preferably for use with a tyre which forms the subject - matter of Specification 254,625, comprises rows of plates 11 formed with end-bars 14, 15 which are engaged by flattened links 16, as shown. Side bars 15 may be engaged by similar links 16 to connect two or more rows of plates. A tapered socket 26 in the centre of each plate 11 is adapted to receive a ground-engaging calk 27 of rubber. metal, or wood.
Patent GB-145388-A (GB)
Title: Improvements in cotton combing machines
IPC: D01G19/06
Filed: 1919-04-05
Abstract: 145,388. Dooley, J. E., Hayes, J. E., and Howard & Bullough. April 5, 1919. Combing-machines.-In a Heilmann comber with multiple heads, in order to enable the width of the heads to be reduced, the upper feed-roller saddles C, Fig. 1, are provided with a slot H, the upper part J of the saddle, straddling the slot, forming a handle to lift the saddle, and the lower part K providing a connexion for the spring G. The narrower head enables the diameter of the detaching-roller to be reduced without sacrificing rigidity, and the top comb can therefore be placed further from the feed rollers. The lifter arms Q, Fig. 3, for the leather detaching-roller L and the corresponding arm U for the adjacent roller are connected bv a part T and operated by one extension P and cam O. The arms Q, U, are mounted on the shaft R by bosses one each side of the bearing standard S. In view of the rigid connexion between the arms, the bosses can be reduced in width. As the shaft R, which normally extends through two heads is operated in the centre and carries arms V, W one at each end, the torsion on the shaft is balanced.
Patent GB-1357283-A (GB)
Title: Vulcanisable compositions
Inventor: KARATSU T
IPC: C08K13/02
Filed: 1972-03-02
Abstract: 1357283 Vulcanization of polyepihalohydrin elastomers NIPPON ZEON CO Ltd 2 March 1972 [3 March 1971] 9764/72 Heading C3R A vulcanizable composition comprises (1) an elastomeric polymer of an epihalohydrin, (2) at least one cyanate of an element of Group Ia, Ib, IIa, IIb or IVb of the Periodic Table, and (3) a compound containing 2 to 6 functional groups selected from hydroxyl, mercapto, primary amino and secondary amino groups, with the proviso that at least one hydroxyl or mercapto group must be present and the said functional groups are each attached to different saturated carbon atoms. An additional ingredient (4), viz. an oxide of Group IIb or IVb of the Periodic Table may also be present. (1) May be an epihalohydrin homopolymer or a copolymer of epihalohydrin with ethylene, propylene, butylene or cyclohexene oxide, butadiene monoxide, ethyl or allyl glycidyl ether, tetrahydrofuran, trioxane, ethyl or phenyl isocyanate, 2,4-tolylene-diisocyanate, maleic, succinic or phthalic anhydride, acrylates, vinyl ketones and olefins. (2) May be a cyanate of Na, K, Ag, Ba, Hg, Si or Pb. (3) May be ethylene, diethylene or triethylene glycol, glycerol, thio-, dithio- or trithioglycerol, pentaerythritol, sorbitol, ethane, propane, butane or hexane dithiol, ethanolamine, diethanolamine, 2-mercaptoethylamine, 2-mercaptopropylamine, or 1-mercapto- 3-amino cyclohexane. (4) May be magnesia or red lead. Other optional components include tin stearate, carbon black, 2,2<SP>1</SP>-methylene-bis-(4- methyl-6-tert.butylphenol), 2-mercaptobenzimidazole and phenyl-beta-naphthylamine. Uses.-As boxes, belts, rolls, seals, packings, gaskets, diaphragms, linings, wire coatings, plastic modifiers and textile treating agents.
Patent GB-999093-A (GB)
Title: Manufacture of 3,4-dihydroisoquinoline compounds
Inventor: WHITTAKER NORMAN
IPC: C07D455/08
Filed: 1960-03-18
Abstract: 3,4-Dihydroisoquinolines of the general formula <FORM:0999093/C2/1> are prepared by treating the corresponding 1,2,3,4 - tetrahydroisoquinoline with an N-halogenating agent and subsequently heating with alkali; (R represents a hydrogen atom or an alkyl or indifferently substituted alkyl group, and the benzenoid ring may be substituted by one or more alkoxy groups or by an alkylenedioxy group).  The process may be used for the conversion of isoemetine or 2-dehydro-isoemetine into emetine or 2-dehydroemetine, respectively, by treating with an N-halogenating agent, e.g. a hypochlorite or N-chloroamide, subsequently heating with an alkali and then reducing the O-methylpsychotrine or 2-dehydro-O-methylpsychotrine produced. Detailed examples illustrate the preparation of 3,4-dihydro-6,7-dimethoxyisoquinoline, its 1-methyl derivative, 3,4-dihydroisoquinoline, (+)-O-methylpsychotrine dihydrogen oxalate, and racemic 2 - dehydro - O - methyl - psychotrine. Specifications 798,847, 999,095 and 999,096 are referred to.
Patent GB-1460861-A (GB)
Title: Interferrometers
IPC: G01B9/02
Filed: 1974-03-05
Abstract: 1460861 Speckle pattern interferometry NATIONAL RESEARCH DEVELOPMENT CORP 28 Feb 1975 [5 March 1974] 9794/74 Heading G2J [Also in Division H4] An interferometer for use in inspection systems using electronic speckle pattern interferometry comprises a source 12 (e.g. an argon laser having outputs at 4965 and 4880) and a beam-splitter 15 which produce an object beam 16 and a reference beam 17. Object beam 16 is focused by lens 20 at a point behind an apertured mirror 5 through which the beam 16 diverges to a lens 21 which converges the beam on to the test object e.g. lens blank 8 or planar, cylindrical or conical surfaces. Light which is scattered from the surface 9 (which may be coated with a metallic paint) is reflected at 7, 6, 5 and 4 on to a screen 10 e.g. that of a vidicon tube 11. The reference beam 17 is focused by lens 29 at a pinhole spatial filter 27 behind the apertured mirror 4 through which it diverges on to the screen 10 to interfere with the object beam light. A closed circuit T.V. system Fig. 2 (not shown) is used to compare the actual form of surface 9 with a perfect reference form and to produce a contour map of the difference. Light of a single wavelength only e.g. from a HeNe laser may be used for investigation of surface deformation or vibration.
Patent GB-1043344-A (GB)
Title: Improvements in or relating to polyfunctional aziridine derivatives
IPC: D06M13/248
Filed: 1963-01-07
Abstract: Novel compounds of the formula ROCH2CH(R1)-A1(Z-A11)n-R11 wherein R represents hydrogen, C1- 6 alkyl or C2- 7 alkanoyl; R1 represents hydrogen or C1- 6 alkyl; A1 and A11 represent -CS-, -CO-, -SO-, -SO2- or <FORM:1043344/C2/1> R111 represents a substituted or unsubstituted alkyl or aralkyl radical; Z represents alkylene, aralkylene, <FORM:1043344/C2/2> (in which Y is a divalent organic radical), the residue of a heterocyclic diamine <FORM:1043344/C2/3> (in which the two nitrogen atoms are part of the heterocyclic ring D), <FORM:1043344/C2/4> n is 0 or 1; and R11 is either <FORM:1043344/C2/5> <FORM:1043344/C2/6> are prepared by reacting a compound of the formula ROCH2CH(R1)-A1(Z-A11)n-X (where X represents halogen or -CH=CH2) with a compound of the formula <FORM:1043344/C2/7>