baber/WOPTO huggingface dataset:
Patent GB-204692-A (GB)
Title: Apparatus for taking and projecting animated photos
IPC: G03B23/08
Filed: 1923-09-10
Abstract: 204,692. Bellan, P. R. Sept. 29, 1922, [Convention date]. No Patent granted (Sealing fee not paid). Kinematograph apparatus.-In apparatus capable of use as a camera, printer, and projector, and utilizing roll films as used in ordinary hand cameras, the bobbin support is connected to an intermittently-driven endless flexible member by which it is moved laterally in one direction, and then in the other direction, the film carried by it being moved longitudinally through the height of one image at the end of each lateral run by mechanism which is operated by relative movement between the support and the endless member. As shown in Figs. 1 and 3, the bobbin support 2 is slidably mounted on a rod 18 and slidebar 17, and is driven by a handle 5 through toothed wheels 4, 7, an incompletely toothed wheel 9 on the shaft of the wheel 7, a pinion 11, and an endless chain 13. The teeth on the wheel 9 occur in groups, all but one of which cause the support 2 to be moved in steps each equal to the width of one image. One group of teeth 30 causes the pinion 11 to make a half-revolution, and during this movement a rod 14, Fig. 4, which passes through one link of the chain 13 and connects the chain to a wheel 16 on the shaft of a feed roller carried by the support 2, is caused to move through the link of the chain and so rotate the feed roller and move the film through the height of one image. The movement of the rod 14 through the link is produced by a cam 26 when the link moves upwards, and by a spring surrounding it when the link moves downwards. The bobbin support has an exposure slit 19 and carries a supply bobbin 33, Fig. 9, a take-up bobbin 32, feed and pressure rollers 35, 15 respectively, and an endless band connection 31 between the roller 35 and bobbin 32. The shutter 6 is rotated through a pinion 8 by the wheel 7 and comprises a disc having a semicircular aperture and a semicircular plate adjustable over the aperture.
Patent GB-802569-A (GB)
Title: Novel carotenoids and diols and the manufacture thereof
Filed: 1956-07-23
Abstract: The invention comprises 15,151-dehydrozeaxanthene and esters thereof and a process for their manufacture, which comprises bilaterally condensing acetylene in an organometallic condensation with an 8-substituted-2,6 - dimethyl - octatrien - 2,4,6 - al - 1, in which said substituent is a 2,6,6-trimethyl-cyclohexen-(1)-yl or 2,6,6-trimethyl-cyclohexylidene radical containing a hydroxy or esterified hydroxy in the 4-position, and converting the C40-(acetylenic diols) obtained thereby into 15, 151 - dehydro - zeaxanthene or acyl derivatives thereof by subjecting same, after esterification, if necessary, to the elimination of two mols. of water and acid and simultaneous allyl rearrangement and, if required, hydrolysing the product.  The bilateral condensation is effected by reacting 2 mols. of the aldehyde starting material in a Grignard reaction with an acetylene-di-(magnesium halide) and hydrolysing the reaction product by means of an acid, or alternatively reacting 1 mol. of the aldehyde starting material in liquid ammonia with an alkali-metal or alkaline-earth metal acetylide, and then condensing the product, if desired, after hydrolysis to the corresponding 8-substituted - 4,8 - dimethyl - decatrien - 4,6,8 - in - (1)-(3) in an organo-metallic condensation with a further mol. of said aldehyde. As the alkali metal acetylide there may be used lithium acetylide. Water or acid may be eliminated from the acetylenic diols or their esters, by treating same with phosphorus oxychloride in an inert solvent in the presence of excess pyridine or by heating same with a strong organic acid, e.g. p-toluene-sulphonic acid in toluene.  A further alternative for the elimination of water or acid is by the action of aqueous or water-free hydrogen halides.  This treatment may be effected in anhydrous solution in diethyl ether, methylene chloride, and dioxane, or by treatment with aqueous hydrogen halide in chloroform or methylene chloride.  Examples describe the preparation of 15,151-dihydro-zexanthine starting from the 41-acetoxy b -C19-aldehyde and 41-acetoxy-iso-C11-aldehyde.  Specification 802,568 is referred to.
Patent GB-1135387-A (GB)
Title: Improvements in or relating to electro precipitation
Inventor: HEINRICH DIETER OTTO
IPC: B03C3/013
Filed: 1965-05-28
Abstract: 1.135,387. Treating combustion gases. LODGE-COTTRELL Ltd. 18 May, 1966 [28 May, 1965], No. 22701/65. Heading B1R. Waste-gases from the burning of a fuel are conditioned prior to being treated in an electroprecipitator by injecting into the gases an airborne dispersion of sulphur tri-oxide produced by evaporating stabilised sulphur tri-oxide into a stream of air derived from the air being supplied for combustion of the fuel. The sulphur trioxide may be evaporated in a still or by contact with a hot plate. The air into which the sulphur trioxide is evaporated may have been heated by indirect heat exchange with the hot waste combustion gases. The temperature of the air-borne dispersion of sulphur tri-oxide is maintained at least 20‹C above the sulphuric acid dew point and the amount of sulphur trioxide added to the waste gases is between 0 and 50 p.p.m., preferably between 0 and 22 p.p.m.
Patent GB-424047-A (GB)
Title: Process for the preparation of dichloracetic acid
IPC: C07C51/093
Filed: 1934-08-04
Abstract: Dichloracetic acid is produced by heating pentachlorethane with sulphuric acid of 88--99 per cent strength preferably at 130--170 DEG C.  Water or diluted sulphuric acid is preferably added as required to prevent the concentration of the sulphuric acid becoming too high. The reaction mixture may be poured upon ice, the unreacted pentachlorethane poured off, and the dichloracetic acid extracted with ether or other solvent.
Patent GB-964076-A (GB)
Title: Electrical terminal connector
IPC: H01R4/32
Filed: 1963-06-07
Abstract: 964,076. Binding posts. STANDARD TELEPHONES & CABLES Ltd. June 7, 1963 [June 12, 1962], No. 22756/63. Heading H2E. A terminal connector (Figs. 1, 2) comprises a plate 2 having an aperture 18, to receive a wire, and a rotatable clamp member 6, 7 with its head portion 7 having a notch 21 which can be aligned with aperture 18, also to receive the wire, the plate 2 or head portion 7 having suitably arranged surfaces between which the wire is clamped by rotation of tne clamp 6, 7. The primary clamping surface is, in one embodiment, that of a tongue 16, which may be spiralled clockwise or anti-clockwise, and is integral with the plate 2, which is itself integral with the contact blade 5. The shank 6 fits snugly into an aperture 17 in the plate 2 and has a foot portion 8 which holds a cup-shaped member 9 against the underside of the plate. The cup 9 acts as a wire stop and permits the entry of only a given length of the stripped wire 23. In a connector for two wires (Fig. 3, not shown) the plate and portion 7 each have two wire-receiving apertures and the plate two spiral tongues. The bared ends of two or more wires may be twisted together for insertion into a single aperture. A modified construction of the plate 2 (Fig. 1B, not shown) obviates the need for the cup 9, the spiral surfaee being cutout of the surface of a thicker plate 2a. In another embodiment (Fig. 4, not shown), the spiral surface is formed on the underside of the clamp flange 7, the plate 2 having no tongue 16.
Patent GB-149685-A (GB)
Title: Improvements in phonographs
IPC: H02K17/30
Filed: 1920-07-31
Abstract: 149,685. Decorat, A., and Testavin, E. July 31, 1919, [Convention date]. Drawings to Specification. Alternating-current motors.-The turntable of a phonograph constitutes the rotor of a polyphase motor, the stator of which comprises a laminated core having slots occupied by. windings and located on one side only of the rotor. The latter is made of magnetic material with a coating of copper. With a single-phase supply a phase-splitting device consisting of inductances and resistances, or a converter, is used, and for use with direct current a converter is combined with the apparatus.
Patent GB-1123643-A (GB)
Title: Improvements relating to character display devices
Inventor: WINROW DONALD
IPC: G09F9/37
Filed: 1967-05-17
Abstract: 1,123,643. Electromagnetic monogrammic signs. FERRANTI Ltd. 17 May, 1967 [3 June, 1966], No. 22813/67. Heading G5C. A device for displaying characters, e.g. numbers, comprises a plurality of elongated elements 20 immersed in a liquid medium of the same density, each being rotatable about its longitudinal axis to display one of two contrasting faces, so that in combination they form a character; a housing for the elements 20; associated with each element a permanently magnetized member 28 producing a field at an angle to the axis of rotation; and control means associated with each element to produce a reversible magnetic field which interacts with the field of member 28 to cause one of the desired contrasting faces to be displayed by rotation of the element 20. As described, elements 20 lie in liquidfilled grooves between superposed plastics sheets 18, 14. The densities of the liquid and element 20 are similar. The magnetic members 28 are contained in voids 22 of the element, and produce a field perpendicular to the latter's axis. Poles 30 of an electromagnet 32 associated with each element 20 provide a field of similar orientation which is reversible. To prevent frictional engagement of the ends of adjacent elements 20, weak repelling magnets 36 are provided. The construction of Fig. 1 enables digits from 0 to 9 to be displayed. A construction of Fig. 5 (not shown) shows fourteen elements 20 arranged such that letters may be displayed. Reference has been directed by the Comptroller to specification 934,001.
Patent GB-206280-A (GB)
Title: Improvements in or relating to machines for dressing rails
IPC: E01B31/17
Filed: 1922-08-23
Abstract: 206,280. Brooks, T., and Woods- Gilbert Rail Remodelling Co., Ltd. Aug. 23, 1922. Railway and tramway rails, trueing and surfacing in situ.-A portable machine has a frame supporting the grinding-wheel and operative parts and held to the rails by feet fitted on the cores of electromagnets and adapted to adhere to the top surface of a rail. The frame comprises two members 16 connected by members 17, which are connected to, or integral with, the cores 14 of electromagnets 13. The members 16 act as guides for two carriers 1 upon which are secured screw-blocks 18 engaging respectively right and left handed threads on a spindle 11 operated by a hand-wheel 19. Pivoted on the blocks are arms 8, which at their lower ends are connected to a bearing 9 for the spindle 20 of a grinding-wheel 10; by rotation of the spindle 11, the pressure of the grinding-wheel upon the rail may be varied. The carriers 1 and the grinding-wheel are traversed to and fro along the members 16 by a nut mounted in one of the carriers and a screw 4 supported by the members 17. The nut is rotated, through worm-gearing 24, 25 and a belt or chain 22, by the spindle 20. The spindle 20 is driven through a flexible shaft by an electric motor, and the direction of traverse and of rotation of the grinding-wheel may be reversed by reversal of the motor. A support 26 carrying an electromagnet resting on the other rail may be provided; the feet on the magnet cores may be locked to the rails by levers 15. The Provisional Specification describes an arrangement of the frame whereby the grinding-wheel is traversed by hand-operated gearing.
Patent GB-348965-A (GB)
Title: Improvements in door hinge structures
IPC: E05D3/00
Filed: 1930-07-30
Abstract: 348,965. Door hinges. CARPENTER, R. F. and ANDERSON, T. F., 1705, Urbana Road, Cleveland,. Ohio, U.S.A. July 30, 1930, No. 22991. [Class 65 (ii).] The pintle of a door hinge comprises a cylindrical portion 5 engaging a fixed socket 21, a non-cylindrical portion 6 engaging a corresponding recess in the door and a collar 7 which bears against a recessed plate 13 secured to the door by side flanges 14. The lower hinge pintle carries a ball-bearing roller 63 which engages a cylindrical cam 37 secured to a bracket 30. The cam is surrounded by a cap 80 screwed to the cam base 41. To vary the positions of rest for the door, a nut 46 is loosened and the cap turned until the lower dwell of the cam is in the required position.
Patent GB-466196-A (GB)
Title: Improvements in or relating to cotton material and processes of making the same
IPC: D06M11/60
Filed: 1935-08-15
Abstract: Cellulosic material such as cotton is treated to increase its hot strength with a solution of ammoniacal copper sulphate and caustic soda so dilute that it has no chemical action at ordinary temperatures, then lowering the temperature until dissolving reaction begins to take place, e.g. 0 DEG  C.  The treatment is preferably followed by treatment with an acid sulphate solution as a setting bath.  Cotton cord so treated is particularly suitable for use in tyres.  A preferred solution comprises 7\ba1/2\be ozs. copper sulphate in 1 litre of water, 2\ba5/8\be ozs. caustic soda in \ba1/2\be litre of water, and 1\ba1/4\be litres of 26 DEG  B<\>ae. ammonia solution.  After immersion, the material is centrifuged and cooled to 0 DEG  C., then immersed in a solution of ammonium, sodium and copper sulphates acidified with sulphuric acid, and washed. Cotton cord so treated is smoothed.
Patent GB-1430088-A (GB)
Title: Radiography
IPC: G01V5/00
Filed: 1972-05-17
Abstract: 1430088 Radiographic apparatus; X-ray apparatus EMI Ltd 10 May 1973 [17 May 1972] 23064/72 Headings H5R and H4F In X-ray or gamma-ray radiographic apparatus in which the source and detector are orbited around an axis passing through the body under examination, the latter body is located by means of a surrounding enclosure for a liquid medium, e.g. water, which enclosure has inner and outer walls, the inner wall being in the form of a tubular, flexible membel having open ends, whereby a portion of the body intermediate its ends may be examined. In the arrangement shown, the outer wall 5 of the enclosure 2 is of plastics material, and the inner wall 6 of rubber, the intervening space being filled with liquid through a pipe 23 to force the rubber snugly against the body 1 under examination. As described, the arrangement is incorporated in apparatus of the type disclosed in Specification 1,283,915, a fan-shaped beam of radiation being directed from the source 4 through the body and an array of collimators 8 to an array of detectors 9 located on a turn-table 31, a rotary water seal 7 permitting rotation of the turn-table while the body 1 remains stationary. The store 12 receives pairs of signals identifying the various paths through the body defined by the collimators 8, and associating with them the corresponding measured values of absorption, from which the absorption coefficient as a function of position throughout the body may be determined by the method described in the abovementioned Specification. To avoid dead spaces between adjacent detectors of the array 9, either the collimators may be arranged to define overlapping paths, or the paths not scanned in one half revolution are scanned in the next half revolution of a 360 degrees sweep. The turntable motion may be either stepwise or continuous; in the latter case, a shutter, synchronized with the rotation, is provided between the source and the arrangement 2, to interrupt the beam intermittently. In an alternative arrangement (Fig. 5, not shown) which dispenses with the need for a rotary water seal, only the source and detectors orbit and the enclosure 2 is stationary. A variety of radiation detectors are referred to including: silicon photo-detectors with an associated wavelength converting phosphor; photo-emissive diodes with wavelength converting phosphors; an X-ray sensitive vidicon tube; a vidicon fed by fibre optic light guides from phosphors; a similar arrangement employing a discharge tube having a photo-cathode spaced from an array of reverse-biased silicon diodes; and photographic film. A method of calibrating the detectors using an absorbing body (Fig. 4a, not shown), of stepped form, or made up of layers of different material, is described.
Patent GB-1175688-A (GB)
Title: Diffusion Systems for Separating Fluid Mixtures
IPC: B29C70/84
Filed: 1966-12-13
Abstract: 1,175,688. Diffusion separation system. E. I. DU PONT DE NEMOURS & CO. 13 Dec., 1966 [22 Dec., 1965], No. 23139/69. Divided out of 1,175,687. Heading D1L. A plurality of diffusion units of the type disclosed in the original Specification 55708/66 (see also Figs. 1, 2, 2A, not shown) are employed in high efficiency systems to separate gaseous mixtures, e.g. He of 99.99+ % purity from natural gas containing <1% He, or from N 2  containing 0.47% He. In Fig. 3, feed passes by lines 201 203 to first diffusion unit 100 and through hollow filamentary mem branes (111) (see Figs. 1, 2, 2A, not shown), depleted effluent leaving by lines 204, 205. Part of the feed stream is diverted by line 210 to act as a sweep medium for the permeate fraction; permeate and sweep medium is then passed by lines 211 and 213 (having been compressed by compressor 212) to second diffusion unit 100. Effluent therefrom is recycled by lines 214-216 to feed line 203, permeate product which passes through the hollow filamentary membranes leaving by line 219. The process is controlled automatically, analyzer units 207, and 217 and 220 in conjunction, respectively controlling the amounts of sweep medium and recycle flow through valves 208, 218. In Figs. 4 and 6 (not shown), 3- and 4-unit systems are respectively described. In Fig. 5, feed passes by lines 430, 431, 432 to the hollow filamentary membranes of two first-stage diffusion units 100, depleted effluent leaving by line 433. Part of the effluent is however returned by line 434 as sweep medium, the swept permeate leaving by line 435 and part thereof being passed by line 436 to sweep the first unit. The combined swept permeate stream is passed through a "deoxo" unit and then dried before being passed by lines 441, 443, 444 to points at both ends of second-stage unit 100 external to the hollow filaments, unpermeated effluent being recycled by line 442. The permeate into the filaments is collected from both ends thereof by lines 448, 449 and passed by lines 450, 451 to both ends of a similar third-stage unit 100, unpermeated effluent therefrom being recycled by line 445 to the input of the second-stage unit, and permeate product leaving the system through line 456. In order to avoid variations in unit performance from unavoidable constructional factors, it is preferred that each unit, whatever the mode of operation, be substituted by three units operating in parallel. By judicious control of the various flow, sweep and effluent rates (see Fig. 6A, not shown), the effluent and permeate compositions from each may thereby be kept constant, and the disturbing effect of these factors on the overall throughput of the three units in parallel greatly minimized.
Patent GB-822672-A (GB)
Title: Improvements in or relating to the treatment of polyoxymethylene film
IPC: B29B15/00
Filed: 1957-07-22
Abstract: Translucent to opaque crystalline polyoxymethylene film, containing spherulites detectable with a visible light microscope using crossed Nicols, is pressure-rolled at a roll temperature not exceeding 120 DEG  C., and preferably at a temperature between room temperature and 100 DEG  C., until the film is clear and substantially no spherulites are detectable with a visible light microscope using crossed Nicols. To secure increased tensile strength, the rolled film may thereafter be stretched while maintained at a temperature within the range between the optical melting-point of the polyoxymethylene and a temperature not lower than 65 DEG  C. below the optical melting-point, preferably within the range 120-180 DEG  C.  The optical melting-point is defined as the temperature range from the point at which crystallites are seen to start to disappear to the point at which they are no longer evident, the film being heated at about 2 DEG  F. per minute and observed under a polarized light microscope.  The optical melting-point of polyoxymethylene films is stated to be within the range 183-185 DEG  C.  The films are preferably those described in Specification 753,299 and prepared from polyoxymethylenes of p  45,000-75,000 molecular weight and above. The film may be stretched (in one or two directions) to 1.5 to 3 times or over its original length and/or breadth, and is preferably stretched after the rolling step in a direction perpendicular to the rolling direction, or in two mutually perpendicular directions.  In a typical example, a film, formed by melt-pressing powdered polyoxymethylene, having an average molecular weight of about 50,000, between chrome plates at 200 DEG  C. for 2 minutes under a pressure of about 200 tons/sq. ft. and quenching the formed film in water at about 4 DEG  C., is rolled in the longitudinal direction between two stainless steel rolls maintained at about 21 DEG  C. until it is doubled in length, the film being at room temperature before entering the nip of the rolls.  The film is then heated to about 180 DEG  C. and can be stretched by about 100% of its original dimension without breaking.
Patent GB-337391-A (GB)
Title: Improvements in collapsable umbrellas, parasols, and the like
IPC: A45B19/10
Filed: 1929-07-29
Abstract: 337,391. Enochsen, E. B. July 29, 1929. Folding and like umbrellas.-The upper and lower sections 18, 19 of the ribs are connected by hinges 21, and hinge pins 27 at the end of the stretchers 25 engage in slots 28 in the sections 19, the arrangement being such that the operation of collapsing causes the lower sections to fold alongside the upper sections and allows the stretchers to telescope with the lower sections, as shown in Fig. 2. The stick is in sections 1, 2, 3 which telescope, the sections 2, 3 being hollow. The sections 2, 3 are held in place in the open position by tapering pins 6 in a plug 5 in the section 2, which pins are pressed outwardly into tapering apertures in the section 3 by a spring 8. In the closed position the pins engage apertures 15. The sections 1, 2 are held in place by a similar arrangement of pins 11.