baber/WOPTO huggingface dataset:
Patent GB-615602-A (GB)
Title: Improvements in and relating to a process for the manufacture of mixed esters of cellulose and of films thereof
IPC: C08B3/22
Filed: 1946-11-21
Abstract: A highly esterified unstable organic mixed ester of cellulose, containing acetyl groups and not more than 15 per cent of higher acyl groups, is treated with an aqueous 1 to 15 per cent acid solution at 70-100 DEG  C., until the ester is stabilized and partly hydrolysed so that it has a degree of esterification of 94 to 97.5 per cent and it is then treated with a dilute alkaline solution so as to complete the stabilization.  The product may be used in the manufacture of films which possess high flexibility and stability, and which are suitable for use as supporting layers for photographic films.  The alkaline treatment may be carried out at a temperature not exceeding 80 DEG  C.  The alkaline substance should be in such a degree of dilution that no further saponification of the cellulose ester occurs.  The acid employed may be sulphuric, acetic, hydrochloric, phosphoric, perchloric, formic, propionic, citric, or oxalic acid. The alkaline substance may be ammonia, dimethylamine, or a hydroxide or carbonate of sodium, potassium, or lithium.  An aqueous or alcoholic solution of the alkaline substance may be used.  In an example, cotton linters are esterified with a mixture of acetic anhydride, butyric anhydride, acetic acid, butyric acid, solvent naphtha, and sulphuric acid. The mixed ester is washed with water and then treated for two hours at 90-100 DEG  C. with an aqueous 7.5 per cent sulphuric acid solution.  The ester is then washed with water, and treated for 10 hours at room temperature with a 0.1 per cent aqueous solution of potash.  In another example the acid solution comprises 10 per cent acetic acid and 3 per cent sulphuric acid and the treatment is effected at 80 DEG  C. for 10 hours.  The acid treatment is followed by treatment with a 0.1 per cent solution of ammonia at 50 DEG  C. for 5 hours.  In other examples, cellulose aceto-propionate and acetopropionate-butyrate, are treated. Specification 470,947 is referred to.
Patent GB-745613-A (GB)
Title: Improvements in or relating to the support of packing materials in columns
Inventor: LONGTHORNE STEPHEN WILSON
IPC: B01D3/32
Filed: 1953-12-18
Abstract: 745,613. Column packing supports. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 3, 1954 [Dec. 18, 1953], No. 35261/53. Class 55 (2). Column packing materials are supported on. one or a number of hollow vessels having a horizontal open upper end with a rim following the shape of the column wall, and perforated walls falling away to their lowest point which lies beneath the centre of the open end, the area of the proportions amounting to at least 70 per cent of the cross-sectional area of the column. An open-topped inverted cone 1 is gripped by its flange 2 between the flanged ends of sections 5, 6 of a column. Slots 9 cut out of the cone in planes parallel to the axis leave ribs 10 of one third the width of a slot at the base of the cone. A strengthening hoop 11 is spot-welded to the ribs. Instead of a cone, the support may comprise a pyramid, or a portion of a sphere, spheroid, ellipsoid, or paraboloid. Slots may be cut in planes perpendicular to the axis or may be radially spaced; the ribs.may be formed of rods. The perforations may be circular and give the support a net-like form, or woven wire mesh may be shaped to form the support.
Patent GB-424528-A (GB)
Title: Method of and apparatus for transferring liquefied gases or like material
IPC: F17C9/02
Filed: 1933-12-14
Abstract: 424,528. Transferring liquefied gases. LINDE AIR PRODUCTS CO., 30, East 42nd Street, New York, U.S.A.-(Assignees of Thompson, H. E.) Dec. 14, 1933, No. 35276. Convention date, Dec. 14, 1932. [Classes 102 (i) and 102 (ii)] Volatile liquids, e.g. liquefied gases, are stored in an insulated container 10 and a part of the liquid is allowed to pass through the pipe 16 to a vaporizer 18 connected by pipe 19 to the container and causes pressure to be exerted upon the surface of the liquid which flows through insulated pipe 21 and surge chamber 27 to the pump 22 where its pressure is raised and it is delivered through the vaporizer 24 to the discharge outlet 25. The vaporizer 18 may be replaced by a container of inert gas connected to the container 10. Fig. 3 shows the liquid flowing from the container 100 through a pipe 51 and surge chamber 270 to a first stage pump 221 delivering to an interstage vessel 52 provided with a relief valve 60 and forming a suction vessel for the second stage pump 222. The delivery pipe 232 is fitted with an insulated container 54 connected by a pipe 56 to a container 55 surrounded by a heating element 59 and connected by a pipe 58 to container 57 of . inert gas. The pumps are driven by an electric motor 30 connected by a belt 32 to a flywheel 31. The suction pipe 21 and delivery pipe 23 of each pump are connected to insulated chambers 40, 42, respectively, surrounding the cylinder which is provided with inlet valves 41 and delivery valves 43.
Patent GB-1366956-A (GB)
Title: Analysing arrangement for irregularities in a repetitive biological process
IPC: A61B5/0245
Filed: 1971-07-27
Abstract: 1366956 Analyzing electro-medical waveforms INSTITUT PO TECHNICHESKA KIBERNETIKA PRI BAN 27 July 1971 [4 Aug 1970] 35295/71 Heading GIN A repetitive biological process is analyzed to detect irregularities by classifying the times of occurrence of a principal component of the process and comparing the sequence of classifications with a plurality of pre-set sequences representing various types of irregularity. The classification is effected with respect to predeterminable upper and lower time limits and the classification classes include classes refined by function of both the upper and lower limits. Furthermore, the pre-set sequences include sequences made up of different ones of the classes. The invention is described as applied to the analysis of an ECG wave where the times of occurrence of successive R components are ascertained in relation to a series of predetermined time intervals Fig. 3 (not shown) to classify each component in one of 13 possible catagories in accordance with its time of occurrence with respect to the immediately preceeding component, and in certain cases also in accordance with the classification of the preceeding component. The classifications are then applied to a computer having a memory in which is pre-set 15 sequences of classifications corresponding respectively to a normal cardiac condition and 14 specified cardiac abnormalities Figs. 4 and 5 (not shown). The logic of the computer functions to compare the sequence of received classifications with the stored sequences and when coincidence is found to energize a unique output line. In a first arrangement Fig. 7 (not shown) the output lines are connected to a pin recorder which is stepped by each R component and cause the pin to be deflected to an extent determined by which of the lines is energized. In a second arrangement Fig. 8 (not shown), the recorder is associated with a counter responsive to the R components and in addition to recording which of the computer lines is energized, records the number of components since the preceeding energization. The arrangement for carrying out the timing and classification of the R components Fig. 2 (not shown) is based on assembly of multivibrators to establish the time intervals, and on assembly of AND/OR gates to carry out the classification. The predetermined time intervals are unique to each patient monitored and are accordingly made adjustable. The computer is not disclosed in detail but the required logic sequence is given Fig. 6 (not shown).
Patent GB-1105449-A (GB)
Title: Ammunition cartridge case and method for the manufacture thereof
IPC: F42B5/188
Filed: 1966-08-08
Abstract: An aqueous nitrocellulose slurry having a stock consistency of 0.4% (fibre to water) has a total fibre content composed of 85% nitrocellulose fibres and 15% cellulose fibres.  Diphenylamine, present as a stabilizing agent, is 1.75% of the total fibres.
Patent GB-302810-A (GB)
Title: Improvements in bobbin drag arrangements for flyer spinning and like frames
IPC: D01H7/44
Filed: 1927-12-31
Abstract: 302,810. Boyd, T. A., Boyd, H. A., and Boyd, Ltd., J. & T. Dec. 31, 1927. Spindle apparatus.-In flyer spinning and like frames wherein the drag is imparted by cords or like to the bobbin flanges or members driven thereby, bosses provided with ribs 8<1>, 8<3> are mounted on a rod 7, which is rotated when the frame is ready for doffing so that the cord rest in the angled ribs 8<3> and any that have been manually adjusted in the notches 8<2> in the ribs 8' during spinning slide therealong to the positions they initially occupied. The cords are connected to a slide bar 10 whereby they may be adjusted collectively and withdrawn for doffing. An auxiliary constant drag, comprising pins 5 carried in discs 4 and pressed by centrifugal force against a ring 3, may be provided to relieve the adjustable cord drag.
Patent GB-191079-A (GB)
Title: Improvements in or relating to the filtration of petrol and its supply to the carburettors of internal combustion engines
IPC: B01D36/00
Filed: 1922-12-29
Abstract: 191,079. Terrier, L., and TrÚmoliÞres, G. H. Dec. 29, 1921, [Convention date]. Filters having sheet filtering - materials. - Petrol for a carburettor enters a casing 2 from the supply tank through a union 6, is filtered through gauze 15 supported on the flanged ends of a member 14, and passes into the interior of the member through tubes 16 having constricted inlet orifices. Its passage down into a cylinder 8 and thence to the carburettor through a union 6<1> is regulated by a conical valve 10 under the control of an elongated float 9.
Patent GB-627875-A (GB)
Title: Improvements in or relating to an engine foundation
IPC: F16M5/00
Filed: 1946-11-29
Abstract: 627,875. Winch bed plates. MOORE & CO., Inc., L. C. Nov. 29,1946, No. 35451. Convention date, Dec. 5, 1945. [Class 78 (v)] [Also in Groups XXIV and XXVI] A foundation for supporting the various sizes of draw works and engines used in well boring apparatus comprises rigid substructure A mounted on skids 1 and having on the upper suface longitudinally extending beams 2 to which are secured at one end transverse channel beams 12 and on the other end a frame B. The frame B consists of two girders 7 spaced apart by girders 8 at a width equal to that of the substructure A and it can be moved so as to extend partly beyond the substructure A to increase the length of the platform formed by the girders 12 and the frame B on which the draw works rest. The outer end of the frame B may be supported by a brace which is connected to the end of the sub frame and to various positions on the frame B. To increase the width of the foundations, two substructures are rigidly connected together the frame A and the girders 12 of each foundation being swung through 90 degrees and secured to the beams 2.
Patent GB-365713-A (GB)
Title: Elevating mechanism for tipping waggons
IPC: B60P1/12
Filed: 1930-11-26
Abstract: 365,713. Tipping vehicles. FAGARD, F. J., 4, Middleborough Road, Coventry. Nov. 26, 1930, No. 35574. [Class 108 (i).] In vehicles the tipping mechanism includes a driving shaft rotatable by the engine in one direction only and means for selectively connecting this driving shaft with a driven shaft through different sets of gearing which are constantly in mesh such that the driven shaft can be rotated in either direction for raising and lowering. The driving shaft 8 is rotated in one direction by means of shaft 12 through a gear and clutch from the engine. The shaft 8 is provided with free gears 20, 26 which can be selectively clutched to the shaft 8 by a clutch 31, Fig. 3, the gears 20, 26 being in mesh with idle gears 21, 27 by which either directly or through gears on a shaft 23 the driven shaft 5 is rotated in the desired direction. The tipping can be stopped at any point by lever 33 operating the clutch. Figs. 4 and 5 show an automatic reversing gear in which a worm 35 on the shaft 23 causes a nut to travel longitudinally of the shaft and to swing a fork 41 engaging the reversing clutch 31 through a lever 37 provided with a ball end 39 housed in a slot having spring plungers 46 in the fork 41. As the nut 36 travels from one end to the centre of the worm 35 one spring plunger 46 is compressed and continued movement of the nut positively moves the fork 41 to disengage the dogs of the clutch which is then pressed over to engage the other gear for reversal. Spring bias is given by a conical head 50 in a spring barrel. Stoppage at any point may be obtained by declutching the engine.
Patent GB-1527165-A (GB)
Title: Mechanisms for converting unidirectional movement of one component into selective movement of another component
IPC: G05G7/06
Filed: 1977-08-26
Abstract: 1527165 Change-speed control; ratchet gearing; linkwork QUASAR MOTORCYCLES Ltd 26 Aug 1977 [26 Aug 1976] 35637/76 Headings F2D F2Q and F2K A linkage for changing gear in a motorcycle comprises a pedal assembly 11 having pads 23, 24, depression of pad 23 causing plates 22 to pivot about an axis 25, a pin 32 to engage a recess 30 of a plate 27 and further pressure on pad 23 pivots a lever 16 clockwise until the pedal assembly contacts a stop, the lever assembly and plate 27 pivoting about a shaft 12. Pressure on pad 24 pivots a plate 26, a pin 31 engaging a recess 29, to pivot lever 16 anticlockwise, the plates 22 being biased by a spring 33 so that the pin 31 normally engages a recess 29. Movement of lever 16 is transmitted to a cam plate 17 having a slot 42 guiding cam followers 18 to change ratio, four forward ratios and neutral. To change from first gear to fourth gear pad 23 is pressed three times. Downward changes are by pressing pad 24.
Patent GB-367892-A (GB)
Title: Improvements in catalytic dehydration
IPC: C07C1/24
Filed: 1930-11-27
Abstract: For the catalytic dehydration, of organic compounds the catalyst is rigidly applied to inner surfaces of the apparatus, through which the heat necessary for the reaction is conducted from an exterior source. For example, the catalyst may be coated on to the inner or outer surfaces of ribbed tubes the other surfaces of which are heated by hot gases, liquids or melts, or by electric means.  Specified reactions to which the invention is applicable are the conversion of hydroxy compounds, e.g. isoamyl alcohol and 1.3-butylene glycol into unsaturated hydrocarbons such as isoamylenes and butadienes, of glycols into oxides, of alcohols and acids into esters, and of acids into anhydrides.  The reaction temperature may be 250-300 DEG  C. and reduced, atmospheric, or increased pressure may be employed. Specified catalysts are (1) monosodium phosphate and red phosphorus, (2) monosodium phosphate and aluminium hydroxide, (3) sodium metaphosphate and bauxite.ALSO:For the catalytic dehydration of organic compounds, the catalyst is rigidly applied to inner surfaces of the apparatus through which the heat necessary for the reaction is conducted from an exterior source.  For example, the catalyst may be coated on to the inner or outer surfaces of ribbed tubes, the opposite surfaces of which are heated electrically or by hot gases or liquid.  Specified reactions to which the invention is applicable are the conversion of hydroxy compounds into unsaturated hydrocarbons, e.g. isoamyl alcohol and 1.3-butylene glycol into isoamylenes and butadienes, of glycols into oxides, of alcohol-acid mixtures into esters, and of acids into anhydrides. Reduced, atmospheric, or increased pressures may be used and the temperature may be 250-300 DEG  C.  Specified catalysts are (1) monosodium phosphate alone or mixed with red phosphorus or with aluminium hydroxide, (2) sodium metaphosphate and bauxite.
Patent GB-465901-A (GB)
Title: Improvements in and relating to diesel-electric power transmission
IPC: H02P9/04
Filed: 1935-12-24
Abstract: 465,901. Control of several D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., and POLLOCK, A. A. Dec. 24, 1935, No. 35748. Addition to 423,245. [Class 38 (iii)] In a control system according to the parent Specification, for ship propulsion or traction, the exciter Ex for the fields F1, F2, F3, of the generators G1, G2, G3, has its control field arranged in as many parts K1, K2, as there are motors M1, M2. Each part of the control field is connected in series with a respective potentiometer resistance R1, R2, from which the respective motor fields H1, H2 are supplied. The fields HI, H2, may be those of exciters supplying the motor fields. Resistances may be connected across the motor fields when one generator is cut-out. The generators may be connected in series, as shown, or arranged in parallel groups which are series connected. Specification 364,576, [Group XXXV], is referred to.
Patent GB-750280-A (GB)
Title: Control apparatus for type linecasting and composing machines
IPC: B41B27/10
Filed: 1954-12-10
Abstract: 750,280. Type-bar-making machines. TELETYPESETTER CORPORATION. Dec. 10, 1954 [Dec. 21, 1953], No. 35811/54. Class 100 (3). Driving - mechanism; assembling matrices. In tapecontrol apparatus for a type line - casting machine, the mechanism for raising the elevator includes a composite lever device, comprising two separate pivotally mounted members normally latched together but becoming unlatched during the elevatorraising operation and relatched on receipt of any signal other than the elevator signal, so that the elevator is not raised in response to a succeeding elevator signal, unless another signal has intervened. The apparatus is of the general construction disclosed in Specification 415,798 with particular reference to Figs. 9 and 15 thereof, the bell-crank lever 158 shown in said Fig. 9 being replaced in the present Specification by a composite lever device 13 comprising an arm portion 12 and a main lever 22 normally latched together by a latching element 24 pivoted to the portion 12 and having an arm 25 engaging a lug 26 on the lever 22. When the elevator signal causes the selector bar 8 to move forwards, the portion 12 is moved and through the latch engagement 25, 26 moves the lever 22 counter-clockwise about its pivot 14, thereby raising the elevator and stopping the record-reader mechanism by means of the clutches 53, 77. However, when the portion 12 reaches its counterclockwise position, an arm 29 of the latching element is engaged by a latch arm 31 of a lever 32 pivoted at 33, so that when the lever 22 is released by the trigger 58 and returns to normal position, the portion 12 is partly held back by the arm 31, the element 24 being rotated sufficiently to disengage the parts 25, 26, so that an immediately following elevator signal has no effect. However, if any other signal is received, at least one of the connector bars 19 must move in one direction or the other, and a rod 44 in a bail member 42 pivoted at 43 rests on the bars 19 in such a position that movement of any bar causes a sawtooth cam thereon to raise the rod 44, whereupon through an arm 39 and rod 37 the lever 32 is moved to release the element 24 and the portion 12 returns to normal position and is re-latched to the lever 22.
Patent GB-907792-A (GB)
Title: Improvements in resilient pads for use in packaging
IPC: B65D81/09
Filed: 1959-10-23
Abstract: 907,792. Packaging; boxes &c. KREMNER, S. Oct. 11, 1960 [Oct. 23, 1959], No. 35897/59. Classes 18 and 94(1). A packing element comprises a foamed rubber or like component in the form of a sheet, small pieces or in strip form, enclosed in an envelope, formed from a tube or sheet of plastic material and sealed by heat and pressure. Air trapped in the envelope acts as a cushion to augment the resilient effect of the foamed rubber. The element may be in the form of sheets for lining the interior of packing cases or cartons.
Patent GB-381035-A (GB)
Title: Process for the production of artificial stones
IPC: C04B20/02
Filed: 1931-12-30
Abstract: Fibres such as textile waste, wool, asbestos, &c. are soaked in water for 12-24 hours, dried, and ground with powdered resin in the proportion of 1-1 1/2 parts of resin to 1 part of fibres.  The mixture is moulded under heat and pressure to form building slabs &c. In the case of asbestos fibres an improved colour is obtained by a small addition of Glauber's salt. Decorative objects such as shells, mother-of-pearl, moss, &c. may be placed at the bottom of the mould to ornament the surface of the slabs.
Patent GB-1000034-A (GB)
Title: Microwave antenna
Inventor: BERKOWITZ BERNARD
IPC: H01Q1/28
Filed: 1961-10-06
Abstract: 1,000,034. Aerials. SPERRY RAND CORPORATION. Oct. 6, 1961, No. 36098/61. Heading H4A. A microwave aerial comprises a lower horizontal parallel plate waveguide consisting of sheets 1, 2 having a central aperture, a rotary feed 5, an upper horizontal parallel plate waveguide 34 consisting of sheets 19, 20 having a central aperture, and a vertical parallel plate waveguide 22 joining the upper and lower parallel plate waveguides. Duct 3 receives at flared end 4 energy emitted from feed 5 the latter being adapted to rotate through 360 degrees, to give complete azimuthal scanning, by means of rotating joint 6, motor 7 and gearing 8; feed 5 comprises a primary horn 12 and auxiliary horns 13, 14 coupled thereto by apertures 15. The phase and amplitude of the energy emitted by the auxiliary horns are adjusted relative to that emitted by the primary horn so as to reduce side-lobe radiation. Tuning posts 16 are adjusted for minimum reflexion of energy propagating through duct 3. Surface-wave launching means includes tapered annular dielectric window 23 and circular conductive member 38 terminates duct 34; the input of window 23 is matched by a stepped transition 36. Top loading is afforded by dielectric 24 whereby the angle α, at which radiation departs from the top surface of the aerial, is reduced. The portion of energy not radiated is guided to re-enter waveguide 34 and thence flows through duct 3 and horn 29 to be absorbed by lossy material 30; horn 29 is coupled mechanically to rotating waveguide 10. The thickness of top loading dielectric 24 is greater for lower values of angle α but the energy then channelled for dissipation by material 30 increases; a suitable compromise is effected in practice. The radial location of feed 5 is experimentally adjusted to afford a relatively flat phase front of the surface wave launched, thus effecting maximum directivity. Tapered dielectric 23 acts as a lens to partially correct for the wave front distortion arising from the different path lengths in the waveguides. The aerial construction facilitates installation flush with the skin of an aircraft.
Patent GB-731908-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B57/14
Filed: 1953-12-30
Abstract: 731,908. Cylindrical journal bearings. WILLCOX & GIBBS SEWING MACHINE CO., Ltd. (Willcox & Gibbs Sewing Machine Co.). Dec. 30, 1953, No. 36149/53. Class 12 (1). [Also in Group VII] In a sewing machine a shaft 14, carrying a rotary hook 13, is journaled in a pair of bushings 19 fixed in the respective ends of a sleeve 17, the latter being removably secured by screws 18 in lugs 15 depending from the bed 10 of the machine. The space 14a around the shaft 14 between the bushings provides a lubricant chamber, and the sleeve 17 is formed with an oil-hole 17a communicating with the chamber.