baber/WOPTO huggingface dataset:
Patent GB-578119-A (GB)
Title: Improvements in or relating to steel poles for field magnets
IPC: H02K1/08
Filed: 1941-12-19
Abstract: 578,119. Cores for dynamo-electric machines. GENERAL ELECTRIC CO., Ltd., and CURTIS, T. J. Dec. 19, 1941, No. 16405. [Class 35] [Also in Group XXII] A field pole is formed by bending a strip or bar so that two thicknesses thereof constitute the pole core which has at least one laterally extending pole tip. In the form shown, the strip is bent about a bar to provide a slot 6 to reduce cross flux, or, alternatively the two portions forming the pole core may be in contact, the slot 6 then being cut by milling, or being omitted.
Patent GB-772576-A (GB)
Title: Beet lifting and cleaning machine
IPC: B07B13/00
Filed: 1955-06-08
Abstract: 772,576. Harvesting beetroot. ANDERSEN, S. H., and ROSENSTAND, T. June 8, 1955, No. 16490/55. Class 6(3). A beet-harvester, of the kind having a flat spinner 4 rotating on a substantially vertical axis and having beet-lifting tools 3 mounted on the frame 1 adjacent to the front edge of the spinner, is provided with an openwork channel 8 of U-shape in transverse section, a longitudinal shaft 14 being journalled in the channel and provided with helically-curved blades 12 which convey the beets along the channel and lift them towards an opening 28 in the end wall of the channel. The machine is similar to that described in Specification 621,987 and comprises a wheeled chassis 1 carrying two sets of lifting tools 3, a flat spinner 4 driven through a gearbox 5, from a longitudinal shaft 6 connected to the power take-off of the towing tractor. The channel is composed of rods 9 bent into U-shape and attached at their upper ends to angle-irons 30 fixed to the chassis 1. In a modification, alternate rods are fixed to second angle-irons adjustably movable on the fixed irons 30 so that the spacing of the grating may be varied, The blades 12 may be solid or may be skeleton, the outer parts of each blade being constituted by rods bent to define a helical surface, Fig. 6 (not shown). From the outlet the beets are discharged on to the ground or on to a transverse elevator 11 driven, together with the shaft 14, from the shaft 6, through gearboxes 23, 20 and a longitudinal shaft 22.
Patent GB-1524664-A (GB)
Title: Input stage for a ctd low-pass filter
IPC: H01L29/762
Filed: 1977-04-20
Abstract: 1524664 Charge-coupled devices THOMSON-CSF 20 April 1977 [23 April 1976] 16507/77 Heading H1K [Also in Division H3] In a low pass transversal filter using a charge transfer device to provide the delay, the effects of spurious image signals is obviated by the inclusion of an input filter circuit having a cosine function response. Such a filter, Fig. 3, comprises two parallel channels 4, 5 in which an input signal e(t) is sampled with a phase displacement of half the sampling period by switches 6, 7, the channel 4 including a delay of half the sampling period and means 9 for summing the two outputs before applying them to the input of the transversal filter. Cosine square or cosine cube responses may also be obtained by adding further parallel channels with appropriately phased sampling and with further delays. Figs. 9, 11, 13, 14 (not shown). The transversal filters is realized as either a CCD or a bucket brigade, the input cosine filter being integrally formed with it, Figs. 5, 10, 12 (not shown) and having the various delay produced by varying the widths of appropriate electrodes.
Patent GB-653464-A (GB)
Title: Directional beam aerial system with periodically varying radiation pattern
IPC: G01S13/42
Filed: 1948-06-21
Abstract: 653,464. Aerials. PATELHOLD PATENTVERWERTUNGS- & ELEKTRO-HOLDING, AKT.-GES. June 21, 1948, No. 16603. Convention date, July 14, 1947. [Class 40 (vii)] An aerial system, having a directional radia. tion pattern which performs a conical scanning motion, comprises a parabolic reflector from the apex of which extends a co-axial cable which supports and feeds a dipole located in the vicinity of the focus and means for causing the deflection of the dipole in a path about the focus. It is stated that this path may be elliptical whereby an elliptical-conical scan is performed. In Fig. 1, the co-axial cable K<SP>1</SP>, K<SP>2</SP> upon which is mounted the dipole D<SP>1</SP>, D2 and an associated reflector dipole, passes through the apex of the parabolic reflector R<SP>1</SP> and is deflected from the axis of the reflector so that its tip is located within a recess in a rotatable disc S. The axis of rotation of disc S coincides with axis of reflector R<SP>1</SP>, so that when the disc is rotated by motor M‹, the dipole D<SP>1</SP>, D<SP>2</SP> traces out a circular path about the reflector axis and the radiation pattern of the aerial performs a conical motion. In an alternative arrangement, Fig. 2 (not shown), an eccentrically loaded weight is attached to the end of the co-axial cable and is rotated rapidly by a shaft passing within the inner conductor of the cable and driven by a motor located behind the parabolic reflector. In these arrangements the co-axial cable is rigidly connected to the parabolic reflector and is itself flexible whereby the dipole may be displaced from the axis. In alternative arrangements, however, a rigid co-axial cable which is pivotally mounted, or supported by a resilient tubular element, upon a plate immediately behind the' reflector may be used. The Specification as open to inspection under Sect. 91 describes an arrangement, Fig. 3 (Cancelled), wherein an element R<SP>2</SP>, which is made of either dielectric or conducting material, is connected to a rotating shaft W<SP>1</SP> passing within the inner conductor K<SP>2</SP> of the co-axial cable, whereby the conical scan of the radiation pattern is obtained. In another arrangement, Fig. 4 (Cancelled) (not shown), an inclined reflecting surface is mounted at the end of the rotating shaft to obtain the desired conical scanning action. This subject-matter does not appear in the Specification as accepted.
Patent GB-219153-A (GB)
Title: Improvements in adjustable spanners, and wrenches
IPC: B25B13/12
Filed: 1923-06-27
Abstract: 219,153. Jumeaux, C. June 27, 1923. Sliding-jaw wrenches. -Means are provided for locking the adjusting member. The adjusting nut 4, Fig. 1, is locked by a spring-pressed plunger 7, sliding in a bracket 6 fitting in a recess in the side of the spanner and' adapted to engage holes, radial slots or serrations 9 in the end of the nut, a projection 7<a> being provided on the plunger for withdrawing it. In a modification, a spring 7, Fig. 6, is mounted on a stud 10 on the side of the spanner, one end 7<b> of which is adapted to engage the recesses in the nut 4, the other end 7<a> abutting against a stop 11 on the spanner. A projection may be provided on the part 7<b> to facilitate its release from the nut 4, or a screw-driver may be used to prize the part 7<b> out from the nut.
Patent GB-118742-A (GB)
Title: Improvements relating to Railway Milk Cans.
Inventor: PRICE FRANK
IPC: B65D43/04
Filed: 1917-11-14
Abstract: 118,742. Price, r., and Varney, W. H. Nov. 14, 1917. Lids, bayonet-joint.-The lid 5 of a railway milk-can has one or more L-shaped projections 6 arranged to engage gaps 4 in an inwardly-projecting rim 3, so that the lid may be secured in position by a turning movement.
Patent GB-1034357-A (GB)
Title: Purification of organic isocyanates
IPC: C08G18/70
Filed: 1963-04-29
Abstract: Digamic isocyanates containing hydrolysable chlorine are purified by admixing said organic isocyanate only with water only, preferably between 0.1 and 10 times the stoichiometric proportion required to effect complete hydrolysis of all the hydrolysable chlorine, and removing hydrogen chloride as it is formed from the resulting mixture.  The mixture may be maintained at 20 DEG  to 280 DEG  for 0.1 to 3 hours or better at 150 DEG  to 250 DEG  C. for 0.5 to 1.5 hours. Aliphatic and aromatic mono- or polyisocyanates may be treated according to the invention; a comprehensive list of these is given. The hydrogen chloride may escape on its own or nitrogen purging may be employed. Examples, which also include only thermal treatment and nitrogen purging for comparison, describe the purification of toluene diisocyanate.
Patent GB-1141821-A (GB)
Title: A process of producing an active substance for stimulating the function of the reticuloendothelial system
IPC: A23L17/60
Filed: 1967-04-12
Abstract: 1,141,821. Medicinal polysaccharides. TOHOKU YAKULT SEIZO K.K. 12 April, 1967 [20 April, 1966], No. 16794/67. Heading A5B. [Also in Division C3] Nitrogen-containing polysaccharides are extracted from unicellular green algae by successively extracting the algae under the action of heat with (i) a hydrophilic organic solvent or a mixture thereof and water, (ii) water, (iii) an alkaline aqueous solution and (iv) an acidic aqueous solution to produce four separate extracts; concentrating these extracts and removing the hydrophilic solvent and alkaline and acidic substances from their respective extracts; forming a precipitate of impurities by adding ethanol to each extract until the ethanol concentration reaches about 80% and removing the precipitates and added ethanol; and finally forming a white precipitate of the desired polysaccharides by adding absolute ethanol to each extract, and recovering the precipitates. The hydrophilic solvent may be methanol, ethanol or acetone. NaOH and H 2 SO 4  respectively are specified as the alkali and the acid. The product has use in stimulating activity of the reticulo-endothelial system. In an example, a rat is injected with a polysaccharide as above, and the increased removal rate of carbon particles previously injected into the bloodstream is noted.
Patent GB-699044-A (GB)
Title: Refuse collecting vehicles
IPC: B65F3/04
Filed: 1951-07-17
Abstract: 699,044. Loading vehicles; guided skip hoists. OCHSNER & CIE., AKT.-GES J. July 17. 1951. [Dec. 13, 1950] No. 16964/51. Classes 78 (iii) and 78 (iv). In a refuse collecting vehicle provided with a carrier for a refuse bin which is raised to bring the top of the bin into contact with an approximately horizontal closure plate and is tipped to discharge the contents into the vehicle, the carrier has an open semicircular support for the bin and is displaceable along guides by a fluid-pressure-actuated ram, the line of action of which does not pass through the pivotal axis of the closure plate. A member 3, Fig. 1, is pivoted to the vehicle at 2 and includes the closure plate 4 from which depend two guides 5. Rails 6, which slide in the guides, are connected at their lower ends bv a member 7 and at their upper ends by a curved support 8, Fig. 4. for the flanged upper edge of the bin 10. A fiuid-pressure-actuated ram 12 is supported at 13 on the vehicle so that its line of action is to the left of the pivot 2, Fig. 1. The upper end of the ram is connected to the support 8. A cover plate 16 is hinged at 15 to the closure 4 and at 18 to a cover plate 17 which is pivoted at 19 to the side walls 21 of the vehicle. A hook 25 pivoted at 27 to the plate 16 is provided for engaging the loop 31 on the bin. A plate 26 fast on the pivot 27 is held against a member 30 projecting from an extension 17a of the plate 17 by a spring 29. Rollers 41 on the support 8 travel on guides 40 on the side walls. After the bin has been placed on the support, pressure is admitted to the ram and the rails 6 move up along the guides 5 to bring the top of the bin into contact with the closure 4. The bin and member 3 then turn about the pivot 2 into the position shown in Fig. 2, in which the open bin is over the filling aperture 35 of the vehicle. During this movement torsion springs 38 are tensioned to return the empty bin and parts to initial position when pressure is released from the ram.
Patent GB-202457-A (GB)
Title: Improvements relating to loose leaf books
IPC: B42F13/00
Filed: 1922-06-20
Abstract: 202,457. Myatt, J. W. June 20, 1922. Post files.-In loose-leaf binders provided with a pair of clamping-bars and telescopic filing-posts, the clamping-bars are made hollow and their interior utilized to obtain increased extensibility of the post members without affecting the minimum distance between the clamping-bars. The smaller extreme member b of each telescopic post is attached to the outer side of one of the clamping- bars a<1>, and an annular space or enlarged opening a is provided around it so that the adjacent ends of the larger diameter members c, d of the posts can pass into the clamping-bar. The larger extreme member c is secured to the other clamping-bar a<2> with the part c<1> within the bar, or the bar itself is left hollow so that the adjacent ends of the other members d, b can pass into it. This construction provides an increased extension of the posts for a given minimum distance between the clamping-bars approximately equal to twice the clamping-bar thickness for each post member b, c, d.
Patent GB-672501-A (GB)
Title: Improved silica-alumina gel
IPC: C01B33/113
Filed: 1950-07-07
Abstract: A silica gel capable of absorbing moisture to 29 per cent of its weight from an atmosphere having 40 per cent relative humidity is prepared by introducing 0.1-0.3 per cent by weight alumina into a silica hydrogel.  The hydrogel may be soaked, say for 5 hours, in an acidified, e.g. pH 4, dilute, e.g. 0.05-0.2 per cent Al2O3 solution of an aluminium salt or the solution may be continuously passed over the gel.  Suitable salts are the formate, sulphate, chloride or nitrate, and the solution is acidified with formic, sulphuric, hydrochloric or nitric acid respectively.  The hydrogel should be washed with acidified water, e.g. pH 4 1/2 , at 43 DEG C. for 40 hours before soaking.
Patent GB-905423-A (GB)
Title: Rotary brush with fluid channels
IPC: A46B13/00
Filed: 1961-05-10
Abstract: 905,423. Self-feeding rotary brushes. OSBORN MANUFACTURING CO. May 10, 1961 [July 13, 1960], No. 17067/61. Class 19. A rotary brush com-  prises a hollow cylindrical hub 1 having a fluid inlet 4 and a fluid outlet such as 5, 6, 7, 8, and an annular brush element 11 extending therearound and having inwardlyprojecting protuberances 15 spacing it from the hub to form an annular space into which fluid may be supplied from the hub for distribution beneath the brush element and from which the fluid may pass radially outwardly past the element in such a way that it contacts the brush material. As shown, a plurality of elements, of the type having an annular sheet-metal channel back in which bristle material, e.g. wire, is secured beneath a folded sheet-metal retaining- ring, are mounted on the hub and secured in axially compacted assembly by end members in such a way that small spaces are provided between the elements by means of radial indents in the channel backs for passage of fluid radially outwardly. The fluids may be cooling air, water, a lubricant or a cleaning fluid. A length of brush strip may be helically coiled around the hub.
Patent GB-895847-A (GB)
Title: Improvements in or relating to filter presses
IPC: B01D25/19
Filed: 1958-05-29
Abstract: 895,847. Filters. SEITZ-WERKE G.m.b.H. May 29, 1958 [May 31, 1957], No. 17106/58. Class 46. When a lever 19, Fig. 1, pivoted one one of the plate-supporting beams 10, Fig. 2, of a filter press, is moved counter-clockwise by an operating lever 28, a cruciform lever 21 rotates clockwise, and by a pin and slot connection 22, 22a, Fig. 1, urges a ratchet casing 23, Fig. 3, clockwise, whereby an internally-threaded bush 15 keyed to the ratchet wheel 24 is also urged clockwise by a pawl 26, and a threaded spindle 17 within bush 15 and contacting a displaceable cover 12 moves the cover 12 inwards. To open the press, pawl 25 is engaged and pawl 26 is disengaged by movement of a lever 27 on the ratchet casing 23, the ratchet casing is reorientated through 180 degrees, the pin and slot connection 22, 22a is transferred to arm 29 of cruciform lever 21 and lever 20 is moved clockwise (by operating lever 28 transferred thereto) to effect the unscrewing (release) stroke. A hand wheel 18 is provided on bush 15 to move cover 12 by hand.
Patent GB-297509-A (GB)
Title: Improvements in heat exchangers
IPC: F28D7/16
Filed: 1927-06-28
Abstract: 297,509. Robson, S. June 28, 1927. Casings; tube-plates; straight tubes between headers; distributing partitions in fluid inlets and outlets.-In a tubular heat-exchanger the shell A is provided with one or more expansion flanges B connected by rings C and the header plates D or the end covers Fare dished d to collect trapped liquid or condensate for easy removal, for example through the pipes G. The pipes J, K conveying fluid to the shell A may be furnished, at their points of communication with the shell, with extended trunks or chambers J<1>, K<1> embracing a part of the circumference, and covering a series of apertures entering the shell.
Patent GB-1216129-A (GB)
Title: Production of 2,2-bis-(4-hydroxyphenyl)-propanes
IPC: C07C37/14
Filed: 1968-04-10
Abstract: 1,216,129. 2,2-Bis-(4-hydroxyphenyl)-propanes. BADISCHE ANILIN- & SODA-FABRIK A.G. 10 April, 1968 [12 April, 1967], No. 17184/68. Heading C2C. 2,2 - Bis - (4 - hydroxyphenyl) - propanes are obtained when a phenol which is unsubstituted in the position para to the hydroxyl group is reacted with propyne, propadiene or a mixture of the two at elevated temperature, in the presence of sulphuric acid or an organic sulphonic acid and in the presence of divalent mercury ions. Suitable starting phenols are, for example, phenol, 2,6 - dichlorophenol, 2,6- dimethylphenol, 2 - ethyl phenol, 2 - butylphenol, 2 - chlorophenol, 2,3,5,6 - tetrachlorophenol, 2 - bromophenol and 2,6 - dibromophenol. It is preferred to use 2-20 moles of phenol per mole of propyne and/or propadiene and to carry out the process at 30-80‹ C. Preferred sulphonic acids are those having an alkyl or aryl radical having up to 20 carbon atoms. The mercury ions may be introduced into the reaction mixture by adding soluble mercuric salts or substances which will react with the acids used to form soluble mercury salts. A solvent may optionally be used. An example is given of the preparation of 2,2-bis-(4-hydroxyphenyl)-propane from phenol.
Patent GB-165833-A (GB)
Title: Improvements in or relating to the treatment of ammoniacal liquor
IPC: C01C1/10
Filed: 1919-07-09
Abstract: 165,833. Fairweather, J. H. July 9, 1919. Ammoniacal liquor, treating. - Ammoniacal liquor is evaporated to expel free ammonia, and the residual liquor is returned to the gas circuit after passing through a heat exchanger for the incoming liquor. The process is repeated until the residual liquor is sufficiently concentrated to be worked up separately for the recovery of fixed ammonia. The free ammonia driven off may be converted directly into sulphate, or condensed to a concentrated liquor; in the latter case, the weak liquor, before entering the evaporator, may be treated with steam to liberate carbon dioxide and sulphuretted hydrogen.
Patent GB-791964-A (GB)
Title: Improvements relating to pneumatic relay devices
IPC: A01J5/12
Filed: 1955-06-15
Abstract: 791,964. Pulsators. BURRY, H. W. June 15. 1956 [June 15, 1955], No. 17255/55. Class 84, A pulsator relay comprises a piston-valve actuated by a flexible diaphragm. The controlling pulsation is applied at 1 and corresponding vibration of diaphragm 2 is set up. The contant vacuum source is applied at 3 and when the valve 8 moves downwardly is in communication with the pulsator outlet 17. At the same time valve 8 bears on the lower of two resilient seats 11, 12 to prevent loss of vacuum by ingress of air from 14. The valve ports are positioned in the rubber insert 10. Two modified constructions are shown, in one of which the pressure cycle is in phase in both inlet and outlet and it is suggested that by use of the two forms in a common milking installation the demands on the vacuum line can be restricted.
Patent GB-595813-A (GB)
Title: Improvements in the generation of chlorine dioxide
IPC: C01B11/02
Filed: 1945-07-06
Abstract: Chlorine-dioxide is produced by reacting nitrogen peroxide with an alkali or alkaline earth metal chlorite (apparently leaving a residue of the corresponding nitrite).  The nitrogen peroxide may be diluted with an inert gas such as air, a suitable mixture being obtained by passing air through the field of a disruptive electrical discharge. The starting material specified is sodium or calcium chlorite, and the temperature of the reaction zone may vary from 70 DEG  to 120 DEG F.ALSO:Chlorine dioxide-air mixtures with or without nitrogen peroxide and prepared by reacting nitrogen peroxide with an alkali or alkaline earth metal chlorite (see Group III) are used for bleaching flour.
Patent GB-546410-A (GB)
Title: Improvements in or relating to the manufacture of urea-formaldehyde resinous composit
IPC: C08G12/42
Filed: 1940-12-06
Abstract: 546,410. Urea-formaldehyde resins ; cellulose derivative compositions. DU PONT DE NEMOURS & CO., E. I. Dec. 6, 1940, No. 17361. Convention date, Dec. 8, 1939. [Classes 2 (ii) and 2 (iii)] Urea-formaldehyde condensation products are obtained by heating dimethylol urea, or urea and formaldehyde in proportions equivalent thereto, with a monohydric alcohol under refluxing. conditions, e.g. as described in Specification 483,399, if desired with the aid of an entrainer so that the water formed in the re-action together with the alcohol is distilled off, condensed and separated from the alcohol, which is returned to the still, until from 50-90 per cent. of the water is eliminated, whereupon a further amount of urea is added and the heating is continued until two molecules of water have been removed for each molecule of combined urea. The urea added at the further stage is between 2-10 per cent. of that used initially. The condensation product may be blended with other resins, e.g. alkyds, copal, dammar or oleo-resin varnishes, or with lacquers prepared from cellulose derivatives, drying oils and waxes. Plasticizers, pigments and dyes may also be added. There are specified (1) Alcohols-butyl, methyl, ethyl, propyl, octyl, benzyl and cyclohexyl, (2) Plasticzers-dibutyl phthalate, tricresyl phosphate, dicyclohexyl phthalate, camphor, ethyl tartrate, butyl tartrate, ethvl lactate and butyl lactate. In an example, 747 parts of 37 per cent. formaldehyde, 700 parts of isobutyl alcohol and 252 parts of urea are refluxed at 85‹ C. for 30 mins., 100 parts of toluol and 10 parts of phthalic anhydride are added and the mixture is distilled with return of the separated alcohol. After 605 parts water have been removed, 15 parts of urea are added and the distillation is continued until a further 350 parts of liquid have been removed. A clear'colourless solution is obtained which, when filmed on a metal surface, gives a hard coating after 10 mins. baking.
Patent GB-402864-A (GB)
Title: Improvements relating to bed-cabinets
IPC: A47C17/48
Filed: 1932-06-20
Abstract: 402,864. Cabinets. NOBLE, P., Old Town Garage, Milngavie, Dumbartonshire. June 20, 1932, No. 17364. [Classes 52 (i) and 52 (ii).] A bed cabinet has the bed portion of two sections 9, 9a hinged together at 9b, the section 9 being hinged at 23 to form the door panel of the cabinet. The free end of the section 9a has projection engaging in T- shaped slots in the side of the cabinet to form a desk surface 26 of adjustable inclination. The lid or top 7 of the cabinets folds up to reveal a sunk enclosure 30 for toilet articles and a mirror is provided on the underside of the lid. A drawer 14 is provided at the bottom of the cabinet. In a modification (not shown) a folding crib is attached and folds and slides to a compact position at the side of the cabinet.