baber/WOPTO huggingface dataset:
Patent GB-277309-A (GB)
Title: Process for the production of foils, films, bands and the like from viscose and similar cellulose solutions
IPC: C08L1/24
Filed: 1927-08-12
Abstract: 277,309. Wolff & Co., Czapek, E., and Weingand, R. Sept. 13, 1926. [Convention, date], Apparatus for making films.-When making films, foils, bands, &c. from viscose and similar cellulose solutions, the film is stripped from the base before the coagulating-liquid has had time to pass through the coagulated film and to wet the base. By operating in this manner the base is kept free from impurities so that preliminary cleaning or treatment before the re-application of viscose &c. solution, is obviated. The point at which the film is stripped from the base depends on the speed of the base, the composition and temperature of the coagulating-liquid, and the characteristics of the cellulose solution; these are selected in such a manner that at the moment of removal the film is completely coagulated. The film is subsequently passed through the usual purifying and washing baths, and finally dried by passage over drying calenders; if desired it may be supported by another band carrying softening-agents prior to the drying. An example of suitable conditions is given.
Patent GB-1313883-A (GB)
Title: Intruder detector
IPC: G01V3/08
Filed: 1970-05-04
Abstract: 1313883 Intruder alarms MINNESOTA MINING & MFG CO 4 May 1970 [5 May 1969] 21391/70 Heading G4N [Also in Division H3] Variations in an electrostatic field, caused by the presence of an intruder are detected by means of currents induced in an antenna 10. These currents are used to operate a field effect transistor Q 1  which feeds one input of a differential amplifier 14. An adjustable preset voltage is fed to the other input of the differential amplifier on lead 16, and is so adjusted that no output is obtained at 17 under normal quiescent conditions. Any disturbance at 10 thus causes an output at 17; stray effects due to power frequency signals are eliminated (e.g. by means of filter capacitor C 2  and feedback filter loop comprising capacitor C 1  and resistor R 8 ). The output from 17 is fed via a rectifier bridge to the base of a transistor Q 4  so that when an output exceeding a certain value is obtained, transistor Q 4  is switched on. This in turn causes transistor Q 6  to become conducting, switching on relay 21 and causing indicator light 24 to indicate operation of the alarm. Switch 32 when closed prevents the alarm coil 28 from actually being energized. When switch 32 is closed the gate of FET Q 2  is at earth potential and the FET is non-conducting, this causes transistor Q 3  to be conducting which drives the base of transistor Q 5  positive thus preventing transistor Q 5  from conducting. If switch 32 is open Q 5  can become conducting by a signal on its base. Power is supplied from source 25; an emergency battery supply 32, 36 is also provided, which is contirually trickle charged.
Patent GB-1489357-A (GB)
Title: Conversion of synthesis gas to hydrocarbon mixtures
IPC: C07C1/04
Filed: 1976-05-24
Abstract: 1489357 Hydrocarbon synthesis MOBIL OIL CORP 24 May 1976 [2 June 1975] 21398/76 Heading C5E Hydrocarbons boiling in the gasoline range are produced by contacting synthesis gas at 400-1000 F. with a CO reducing catalyst comprising Hf and/or Zr, as metal, oxide and/or sulphide, in admixture with a crystalline aluminosilicate zeolite having a SiO 2  : Al 2 O 3  ratio of 12 to 3000 and a constraint index (defined) of 1-12. The zeolite may be ZSM-5, 11, 12 or 21. Sulphur may be added to the feed.
Patent GB-532680-A (GB)
Title: Improvements in and relating to fireplaces and the like
IPC: F24B1/18
Filed: 1939-07-24
Abstract: 532,680. Heating air. MAHLER, L. July 24, 1939, No. 21422. [Class 64 (iii)] An open fireplace 8 is spaced from the rear wall 13 and enclosed by a casing 15 forming side spaces in which air is heated while flowing upwards from inlets 16 to outlets 17. The outer walls 1 of the fireplace are formed with fins 2, and horizontal baffles 12 direct the air current towards the back of the fireplace near the grate level. A damper 10 in the uptake is maintained in open position by a catch on the spindle 11 engaging a stop.
Patent GB-500205-A (GB)
Title: Improvements in or relating to sound-reducing windows
IPC: E06B7/02
Filed: 1937-08-03
Abstract: 500,205. Sound - excluding windows. CRITTALL MANUFACTURING CO., Ltd., and WALKER, F. P. Aug. 3, 1937, No. 21426. [Class 20 (iii)] A sound - reducing window comprises a plurality of panels arranged in three or more parallel planes, a hinged panel or panels in one or both of the outer planes, and one or more horizontally slidable panels in at least one plane capable of adjustment to provide a gap or gaps staggered in relation to the opening or openings obtained when the hinged panel or panels is or are opened. In the diagrammatic sectional plan shown in Fig. 1 of a window with panels arranged in three planes,. the exterior plane is occupied by sliding panels 1, 2, with or without a hinged panel 11, the interior plane by fixed end panels 5,7, and an intermediate hinged panel 6, and the middle plane by two separate sliding panels 3, 4. Fig. 14 shows a construction with the panels arranged in four parallel planes, the outer planes being occupied by sliding panels 21 and .end hinged panels 22, 23, while the intermediate planes are each occupied by a single sliding panel 20. Numerous other combinations of hinged and sliding panels are described. In the construction shown in sectional plan in Fig. 17, the window is provided on the outside and inside with hinged metal casements 28, 29, and the intermediate sliding panels 32, 33 are composed of unframed glass and mounted on rollers slidable along guide rails 35 secured to the horizontal member of the window frame. Tubular strips 36 of rubber are mounted on the vertical members 37 of the frame and act as buffers to cushion the movements of the sliding panels. In order to reduce the transmission of sound by reflection, the fixed frame members on all four sides are inclined, as shown, and may also be lined with sound-absorbent material. The window sill may be formed with a groove provided with ducts leading to the exterior for the purpose of draining away any accumulated moisture.
Patent GB-597550-A (GB)
Title: Improvements in spring suspensions for motor road vehicles
IPC: B60G5/053
Filed: 1945-08-22
Abstract: 597,550. Motor-vehicle torque rods. KIRKSTALL FORGE, Ltd., and COWELL, F. R. Aug. 22, 1945, No. 21501. [Class 79 (iv)] Relates to spring suspensions for a twin-axle bogie of a motor road vehicle of the type in which the two driven axles 12 of the bogie are supported by a pair of springs 13 which are each centrally pivoted to the chassis 11 and connected by a ball joint 16 at each end to a bracket 17 supported by the corresponding axle arm 18. According to the invention, the spring suspension comprises a torque member 21, 121 fixed to each axle for transmitting the driving and braking reactions to the chassis, and, associated with each torque member, a torque link 23, 123 which is flexibly connected to the torque member and chassis at its opposite ends by bushes 24 of rubber or equivalent material, the two bushes associated with each torque link being disposed one above and one below the central pivotal axis 15 of the springs 13 and approximately equidistant from that axis. The torque members 21, 121 are_located at opposite sides of the chassis and are each connected by the corresponding link 23, 123 to one of the brackets 22, 122 on a cross tube 20 which is mounted on the chassis to the rear of the pivot 15 Each of the bushes 24 comprises a pin 26 fixed to the torque link 23, 123 and a housing 25 on the corresponding frame member (21, 22, 121, 122). By arranging for the upper and lower pivots of the two links 23, 123 to be spaced equidistantly from, and on opposite sides of, the pivots 15, the bushes 24 share equally the angular deflection caused by tilting of the axis. The ball joints 16 and springs 13 are of the kind described in Specification 585,144, [Group XXXII].
Patent GB-406575-A (GB)
Title: Wire rope safety device for movable scaffold poles
IPC: E04G7/30
Filed: 1933-07-31
Abstract: 406,575. Pole scaffolding. SORENSEN, E., 6, N³rnberger Platz, Berlin. July 31, 1933, No. 21512. [Class 20 (ii).] Pole scaffolding of the type which carries a movable platform and is stayed by wire guys which also cause movement of the pole laterally, has two adjustable rope clamps c clamped to the pole by clamps a, one near the bottom of the pole and the other just above the level of the platform supported on the pole. To render interference with the lower clamp impossible to unauthorised persons, the screw bolt e actuating it is provided with a triangular head enclosed within a sleeve f, so that a special key is necessary to actuate it. The screw for the upper clamp is provided with a fixed lever handle.
Patent GB-1200877-A (GB)
Title: Process for the preparation of 1.2-benzocycloalkenylnitriles
IPC: C07D317/70
Filed: 1969-04-28
Abstract: 1,200,877. 1,2 - Benzocycloalkenylnitriles. KNOLL A.G. CHEMISCHE FABRIKEN. 28 April, 1969 [27 April, 1968], No. 21544/69. Heading C2C. The invention comprises compounds of the formula wherein R 1  represents a hydrogen atom, an alkyl C 1-5 , cycloalkyl, cyanoalkyl, alkylcarboxyalkyl or phenyl radical or a benzyl radical optionally substituted by one or more halogen atoms or alkoxy groups, R 2 , R 3 , R 4  and R 5  each represents a hydrogen atom, a benzyloxy or alkoxy C 1-4  radical or two adjacent groups may represent a methylenedioxy radical, m and n are 0 or 1 and not more than two of the substituents R 2 , R 3 , R 4  and R 5  may be hydrogen atoms. They are prepared by cyclizing an aldehyde of the formula or its acetal, wherein Z is 1 or 2, with an aqueous concentrated mineral acid in a temperature range of 0-100‹ C. or with a gaseous hydrogen halide or with acid halides at an elevated temperature in the presence of a suitable solvent.
Patent GB-600068-A (GB)
Title: Improvements in iron-base alloys
IPC: C22C38/52
Filed: 1944-11-03
Abstract: An iron-base alloy has the following composition: Cr 15.0-25.0 per cent, Ni 15.0-25.0 per cent, Co 10.0-25.0 per cent, Mo 1.0-3.5 per cent, W 0.5-7.5 per cent, one of Nb, Ta and V 0.5-2.5 per cent, or more than one of these elements in an aggregate amount of 0.5-3.0 per cent, N2 0.05-0.25 per cent, Mn 0.1-2.0 per cent, Si 0.1-1.0 per cent, C 0.01-1.0 per cent but preferably not exceeding 0.35 per cent, Fe the remainder together with incidental impurities, the aggregate of the elements other than iron being less than 75 per cent.  The metals Nb, Ta or V or the aggregate content of them may be wholly replaced by Al in an amount from 0.5 to 2.0 per cent, or they may be partly replaced by Al in which case the aggregate content of the said metals and Al does not exceed 3.0 per cent.  The alloys may be used for hot-worked, welded or cast articles which in normal use are exposed to elevated temperatures, e.g. above 1,200 degrees F. the alloys being capable of withstanding a tensile stress of at least 10,000 lbs. per square inch for at least 1,000 hours at 1,500 degrees F.  The alloys may be used for turbine blades, wheels or other parts exposed to high temperatures.  An alloy example is referred to containing 21 per cent Cr, 21 per cent Ni, 21 per cent Co, 1 per cent Nb, 0.28 per cent C, 0.11 per cent N2, 0.5 per cent Si, 1.5 per cent Mn, 3 per cent Mo, 2 per cent W with remainder Fe in a condition resulting from forging, heating for 1/2 hour at 220 degrees F. quenching in water, heating for four hours at 1,500 degrees F. and air cooling.
Patent GB-653315-A (GB)
Title: Improvements in or relating to electron discharge tubes
IPC: H01J29/38
Filed: 1947-08-07
Abstract: 653,315. Electron image tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 7, 1947, No. 21666. Convention date, June 28, 1946. [Class 39 (i)] An electron image tube incorporates a velocity selection arrangement which permits only electrons above, or alternatively below, a predetermined velocity, to impinge on the fluorescent screen. Fig. 1 shows a tube for utilizing thermal image effects, in which the target T is of a material which changes its resistance under the action of heat or other radiant energy. On one side is a thin grounded conductive coating 3, and on the other a mosaic 4 of picture elements capable of producing thermionic, photo - electric or secondary emission. An external heating coil H is used in this instance to cause emission. Rings 6, 7, 8, 9 act as accelerating electrodes, and a magnetic focusing coil 10 surrounds the tube. Initially the potential of a selector grid 5 is adjusted so that no electrons pass through. If now a thermal image is focused on the target, the resistances of the plurality of paths through the target to the mosaic elements 4 will decrease according to the amount of radiation received, and these elements will become more negative to grid 5. The increased velocity enables the electrons to pass the grid, subsequently forming a picture on the fluorescent screen S. Fig. 2 (not shown), is a modification in which the electrons are directed towards an electron mirror, those below a certain velocity being reflected to form the picture on the screen. In this instance, ultra-violet energy causes electron emission from the mosaic elements. If visible light or infra-red radiation is used to produce an image of the object on the target, this may be of lead sulphide or activated cadmium selenide, whose resistance varies with such incident radiation.
Patent GB-440045-A (GB)
Title: Process for silver-plating aluminium
IPC: C25D5/12
Filed: 1934-07-25
Abstract: 440,045. Electroplating. JOSEPH, Ltd., N. C., and JOSEPH, N. C., Birmingham Road, Stratford-on-Avon. July 25, 1934, No. 21720. [Class 41] Aluminium after suitable preliminary treatment is plated first with a film of brass then with nickel and copper and finally with silver. The preliminary treatment may consist of cleaning in a mild alkaline solution followed by dipping in nitro-sulphuric acid. The article may be heated to 204‹ C. for 15 minutes after the nickel coating is applied. The copper surface may be polished before silver-plating. A copper sulphate bath may be used for copperplating and any usual bath for the other metals.
Patent GB-588109-A (GB)
Title: Improvements in photographic enlargers
IPC: G03B27/56
Filed: 1944-11-06
Abstract: 588,109. Vertical photographic enlargers. CARPENTER, S. L. Nov. 6, 1944, No. 21734. [Class 98 (i)] An enlarger having a vertical standard has a table for a sensitive sheet supported by the standard and inclined to the horizontal so -that it slopes upwardly away from the standard, and a projector supported on the standard so that (i) the axis of the projection beam is perpendicular to the table, and (ii) the edge of the beam nearest the standard is parallel to the standard, whereby vertical adjustment of the projector expands or contracts the image so that its edge nearest the standard remains substantially stationary on the table. As shown in Fig. 1, the table 13 is supported by an inclined arm 12 on the base 11 and the projector is supported by an inclined arm 22 on a carriage adjustable on a telescopic standard 10, the inclinations of the arms being such that, while table and negative remain parallel, the inner edge X', X, Y of the beam from the projector is vertical in all positions of the projector. Endwise adjustment of the table to compensate for movement of the edge of the image nearest the standard due to focusing' of the lens 19 is accomplished by providing between the table and the arm 12 a pair of guide rails 25 along which the table can slide, and which are supported by a socket 27. In order to correct for non-parallel verticals, the table may be adjusted about an axis parallel to the plane of the table perpendicular to the edge of the image nearest the standard by angular adjustment of the socket 27. Specification 540,700 is referred to.
Patent GB-822041-A (GB)
Title: Improvements in infra-red polarisation filters and method for the manufacture thereof
Inventor: DRECHSEL LUDWIG
IPC: G02B5/30
Filed: 1956-07-13
Abstract: 822.041. Polarizing apparatus. ZEISS JENA, C. VEB. July 13, 1956, No. 21778/56. Drawings to Specification. Class 97(1) In the manufacture of a polarization filter by the treatment of a film of plastic material such as polyvinyl alcohol with an iodine containing solution subsequent stretching and heating, to extend the polarization effect into the infra red wavelength range of about 0.6Á.to 3Á and also 3.5Á to 7Á an acid, such as sulphuric acid, is added to the iodine-containing solution and that solution and the subsequent heating is adjusted to produce a filter having the desired effect. The heating may be in two stages, the first in which the film is kept at a moderate temperature (for example 50‹C.) for a fairly long time, such as 40 minutes, and the second in which the temperature of the film is raised to more than 100 ‹C. but not above 150‹C. for a short time (e.g. 2-4 minutes).
Patent GB-695254-A (GB)
Title: Improvements in or relating to bed settees
Inventor: BRYANT STANLEY GEORGE
IPC: A47C17/22
Filed: 1951-09-17
Abstract: 695,254. Bed-settees. NEWTH & SONS, Ltd., C. July 9, 1952 [Sept. 17, 1951]. No. 21793/51. Addition to 623,975. Class 52(ii) The bed-settee claimed in the parent Specification is modified in that, when the bed section frames are constructed of wood, the pivots connecting said sections are arranged on the upper surface and the front section is supported in extended position, from the seat by members which are jointed intermediately of their ends. As shown, the bedsection frames are connected by pivots 20, 21, 22 and the front bed section 13 is supported, in extended position, at each side by a strut 16 pivoted at 17 to the bed section 13 and at the other end to an arm 16A which it itself pivoted at 18A to a member 19 secured to the seat 23. The arm 16A is provided with a projection 16B to service as a stop.
Patent GB-409710-A (GB)
Title: Process for the decomposition of siliceous aluminiferous minerals
IPC: C01F7/28
Filed: 1932-08-03
Abstract: In the extraction of clays, kaolins and other siliceous aluminiferous materials with aqueous sulphurous acid, the treatment is effected by the application of external heat at a temperature of from 40 DEG  to 90 DEG  C., and extraction is effected at any temperature within this range, and at any concentration of sulphurous acid until the amount of alumina in solution approaches the amount where decomposition of the resulting aluminium sulphite would begin to take place.  The alumina content of the solution increases with time to a maximum and, if extraction were continued, would thereafter decrease.  The sulphurous acid may be added in proportion as it is consumed, or the total amount may be added at the outset of the process, in which case, sealed pressure vessels are employed.  It may be used in excess and as a supersaturated solution.  Pressures specified vary from atmospheric to 12 atmos.  The clays &c., are preferably first calcined, e.g. at 600 DEG  C. and ground.  Extraction is effected with moderate stirring.  The solution obtained, after separation from silica, is heated, for example by direct treatment with steam, until the escape of sulphur dioxide ceases.  Basic aluminium sulphite separates uncontaminated with iron, and is filtered off out of contact with air.  Drawings show the effect of temperature on the decomposibility of the aluminium sulphite solutions, and also the alumina content of the solution for increasing periods of extraction and for different concentrations of sulphurous acid.  The Specification as open to inspection under Sect. 91 comprises also the extraction of the materials with weak acids such as acetic and formic acids.  This subject-matter does not appear in the Specification as accepted.
Patent GB-532706-A (GB)
Title: Improvements in hydraulic means for operating metal working machines and the like
IPC: B23D15/14
Filed: 1939-07-27
Abstract: 532,706. Liquid-pressure engines. FABRIKSAKTIEBOLAGET HALDATAXAMETERN. July 27, 1939, No. 21880. Convention date, July 28, 1938. [Class 69 (ii)] A reciprocating or intermittent movement is given to the tool 9 of a shearing, nibbling, punching, forging or like machine by a piston operated by a liquid circulated by a compressor connected to an inlet pipe 13 and outlet pipe 14. The fluid acts on a ring-shaped piston 4 and depresses the piston 4 and with it a piston rod 6 attached to the tool 9 and formed with a shoulder 5 engaged by the piston 4. The outlet valve 15 is normally closed by fluid pressure acting in a space below a guiding ring 16 on the piston 4 and a flange 17 on the valve. The ring 16 is normally spaced above the flange 17 to an extent which is controlled by a nut 22 axially adjustable on the piston rod 6 by means of a pinion 28 operated by a handle 29. A spring 20 maintains the top of the nut 22 at a distance from the plate 19 on the valve 15 equal to the height of pins 21 which pass through apertures in the shoulder 5. When the ring 16 contacts with the flange 17 the valve 15 is opened to relieve the pressure, and the piston returns to normal position under the action of a strong spring 23. A bye-pass passage 30 normally closed by a valve 31 permits the device to be stopped when required by opening the valve 31 by operating a lever 36 or the valve can open by the fluid pressure if this is strong enough to overcome a spring 32, and thus acts as a safety valve. A spring-pressed valve 37 above the valve seat 18 serves to increase the pressure on the upper side of the valve and accelerate the opening of the valve.
Patent GB-894915-A (GB)
Title: Billet casting method and apparatus
IPC: B22D11/14
Filed: 1960-06-22
Abstract: 894,915. Casting-machines. ALUMINUM RESEARCH CORPORATION. June 22, 1960 [June 23, 1959], No. 21895/60. Class 83 (1). Billets are cast by introducing molten metal through a feed tube into the interior of an openended movable mould while moving the mould through a stroke, the length of which determines the length of the billet cast. The water-cooled mould 17 is reciprocable on guide-rods 14, 16 by an hydraulic cylinder 29, moving to the position shown dotted in Fig. 2 while melt is fed through the fixed tube 26. A dwell at this position allows the billet to shrink away from the mould which then returns while the billet is held stationary by clamps 46, 47. At the next casting stroke the clamps 46, 47 are released and the preceding billet is held to the end of the mould by clamps 39, 41, the billets being then connected across a reduced diameter at their ends which provides a convenient separation point. The stroke of the mould is controlled by limit switches 33, 34 and the line of billets is guided by rollers 48.
Patent GB-404570-A (GB)
Title: Improvements in or relating to devices for testing the dimensions of screw stoppers for bottles or the like
IPC: G01B3/00
Filed: 1933-08-04
Abstract: 404,570. Linear - dimension gauges. DAVIS, J. D., 99, Cannon Hill Road, Birming- ham. Aug. 4, 1933, No. 21950. [Class 106 (ii).] To test the dimensional effectiveness of a tapered screw stopper, it is inserted in a gauge D having a movable plunger C at its base arranged so that the insertion of the stopper to a distance beyond the limit of efficiency moves the plunger C and by means of amplifying mechanism closes an electric circuit for a lamp K, which illuminates the word " Reject " on a ground glass screen M. The amplifying mechanism comprises a bellcrank E moved by the plunger C and actuating a spring H<1> to move a lever H quickly past the dead centre so as to bring a roller contact I across contacts J and close the lamp circuit.