baber/WOPTO huggingface dataset:
Patent GB-1123442-A (GB)
Title: Apparatus for filtration
IPC: B30B9/20
Filed: 1966-02-01
Abstract: 1,123,442. Filter. RICE BARTON CORP. 1 Feb., 1966 [2 Feb., 1965], No. 4440/66. Heading B1D. Filtration apparatus comprises a disc press 12 which includes a pair of discs 44 mounted on axes 54, 56 which are inclined at an angle to each other and which lie in a common horizontal plane and a housing 42 which cooperates with each of the discs 44 around at least part of the outer opposed peripheries in labyrinth seals 66, the discs comprising passages 48 for the removal of filtered liquid and presenting mutually opposed frustoconical screened disc surfaces 62 defining a pressing zone which varies in thickness from a section of maximum thickness communicating with an input zone 40 to a section of minimum thickness communicating with an output zone 86. Wood fibre slurry is fed to the input zone 40 of the disc press 12 by a screw extrusion press 10, which incorporates precision-ground stainless steel bristles 24 (Fig. 5 not shown) secured along the edge of screw 22, and a lump breaker 34 which may be selectively moved to control the operating pressure within steel screen 60. Screw 23 screen 26 and casing 28 are all in joined semicylindrical portions. A standpipe (39) (Fig. 6 not shown) may be used to control the liquid head. Holes 48 in the discs 44 communicate with concentric grooves 50 and radial grooves 52. A doctor 70, the sides of which are spaced closely to screens 62, provides water lubrication holes 71 and a knot removal chamber 74 in which knots carried by screens 62 into chamber 74 are both rubbed from the screens and upwardly removed by auger 76. Material leaving output zone 86 is broken up by shredder 90 which comprises teeth 92 carried by chains running on sprockets 94. The rate of rotation of discs 44 is varied by pressure sensor 85 mounted in input zone 40 or the output zone of the screw extrusion press, 10.
Patent GB-1537042-A (GB)
Title: Sliding caliper disc brake
IPC: F16D55/2265
Filed: 1975-02-01
Abstract: 1537042 Sliding-caliper disc brakes GIRLING Ltd 29 Jan 1976 [1 Feb 1975] 4444/75 Heading F2E The brake includes a torque member 12 having a pair of circumferentially-spaced arms receiving directly from both friction pads drag forces which tend to increase the separation between the arms; the caliper member 10 is slidably mounted on the torque member 12 by a connection comprising a pin (46, not shown), releasably connected to caliper member 10 by a set screw 48, which permits sliding of the caliper member only in a direction parallel to the axis of disc rotation but also pivoting with respect to the torque member; such pivoting is limited in a direction radially outwardly of the disc by complementary sliding surfaces 60, 56, on the caliper member and torque member respectively which permit sliding between the members in directions parallel and perpendicular to the axis of disc rotation so that the above-mentioned arm separation is accommodated; the surfaces 60, 56, are resiliently biased into direct sliding engagement by leaf springs (not shown) (which also retain the friction pads).
Patent GB-934153-A (GB)
Title: Improvements in mass spectrometers
IPC: H01J49/30
Filed: 1961-02-06
Abstract: 934,153. Mass spectrometers. ATLASWERKE A.G. Feb. 6, 1961 [Feb. 5, 1960], No. 4447/61. Class 39 (1). A magnetic mass spectrometer has an ion source 6 in which a band-shaped ionization zone is produced, e.g. by electron bombardment, the band-shaped ionization zone being disposed perpendicularly to the direction of the magnetic field and the ions being converged to a line focus at aperture diaphragm 15 at the. entrance to the magnetic field. The magnetic field focuses in a higher order than the first and for this purpose the ion beam makes an angle of # = 35 degrees 16<SP>1</SP> with the perpendicular to the magnetic field boundary 16. Deflecting electrodes 18, 19 are shown. The iron optical system includes two part accelerating and focusing electrodes 9, 13, 14. Deflecting voltages may be applied to these twopart electrodes for convertion purposes. Focusing electrodes 13, 14 may be flat instead of curved.
Patent GB-470413-A (GB)
Title: Improvements in or relating to the etching of glass
IPC: C03C15/00
Filed: 1936-02-14
Abstract: 470,413. Etching. GENERAL ELECTRIC CO., Ltd., and JEFFKINS, A. C. Feb. 14, 1936, No. 4532. [Class 100 (ii)] In a process for the satin etching of glass, an etching-solution is used comprising ammonia, at least 5 per cent of a silicofluoride, and sufficient acid to dissolve the silicofluoride According to examples, solutions are used comprising hydrofluoric acid, ammonium, sodium, or potassium silicofluoride, ammonium bifluoride, and water. The surface to be etched, e.g. an electric lamp bulb, is first cleaned with a dilute acid such as hydrochloric, and the etching-solution is then applied, as by spraying, at a temperature of approximately 50‹ C.
Patent GB-1217822-A (GB)
Title: Pharmaceutical compositions
Inventor: HANNAH JOHN
IPC: A61K31/575
Filed: 1969-01-28
Abstract: 1,217,822. Pharmaceutical compositions. MERCK & CO. Inc. 28 Jan., 1969 [2 Feb., 1968], No. 4624/69. Heading A5B. Pharmaceutical compositions for the treatment of hypercholesterolaemia and hyperlipaemia comprise as active ingredieint an acid having the formula: in which n is 1 or 2 and R is carboxy when n is 1 and -SO 3 H when n is 2 or a non-toxic pharmacologically acceptable salt thereof e.g. Na, K or Ca salts, together with a solid non- toxic pharmaceuticaly acceptable diluent, carrier or coating, an injectable isotonic medium, sterile water, a sterile saline, glycol or oil, or a liquid medium containing an additional excipient. The active ingredient is preferably 5#- glycocholanic or 5#-tourocholanic acid. The compositions may be administered orally or parenterally in the form of pills lozenges, dragees, capsules, tablets, powders, solutions, suspensions, elixirs or chewable tablets containing conventional excipients. The compositions may also contain a diuretic and/or an anorectic.
Patent GB-826231-A (GB)
Title: Improvements in and relating to folding boxes
IPC: B65D5/06
Filed: 1956-02-14
Abstract: 826,231. Cartons. WENDT, W. Feb. 14, 1956 [July 14, 1955], No. 4654/56. Class 18. A method of closing folding containers having a polygonal aperture cross-section (e.g. a container formed by folding the blank of Fig. 1, and sealing the surface 1 to the extension 8) comprises the steps of folding in polygonal, particularly triangular, folding surfaces 9-14 bounded on one side by edges of the aperture cross-section, folding in between these folding surfaces, further folding surfaces 15-18 arranged singly or in pairs, and forming a closure strip from parts of the folding surfaces and further folding surfaces and/or blank sections bounding these surfaces thus forming a plane closure surface (seen from the inside in Fig. 2) and closure strip, Fig. 6, in such manner that fold edges are formed which are in substantially symmetrical disposition about the perpendicular bisector of one edge of the aperture crosssection (the edge between surfaces 4, 10) and subsequently sealing or glueing the closure strip while lifted from the closure surface. Several embodiments of the invention are described applied to both hexagonal and octagonal boxes including arrangements which economize in material and facilitate pouring. When closing the box shown in Fig. 26, a bar 52 of a silicone compound is introduced so that when the closure strip is welded an aperture is left which is closed by welding the upper margins only, so that when this latter closure is opened a pouring aperture is formed.
Patent GB-1096200-A (GB)
Title: Disproportionation of olefins
Inventor: TURNER LEONARD
IPC: C07C6/04
Filed: 1966-02-03
Abstract: Acyclic olefins are disproportionated under suitable conditions in the presence of a catalyst comprising La2O3, SnO2, IrO2, Rh2O3 or OsO2 an Al2O3.  Preferably, the feed is a C3- 30\t alkene. Examples describe the disproportionation of propylene.ALSO:Disproportionation catalysts comprise La2O3, SnO2, IrO2, Rh2O3 or OsO2 supported on Al2O3.  The alumina may be pretreated, e.g. with HCl or CH3COOH.  The catalyst may be activated by heating in an inert and/or oxidising gas.
Patent GB-265391-A (GB)
Title: Improved window fastener
IPC: E05F11/00
Filed: 1926-02-20
Abstract: 265,391. Preen, T. A., and Preen, T. A. Feb. 20, 1926. Fastenings for slid ing windows.-A fastener for sash windows has two racks c, d fastened to the window frame and top sash respectively, and a bolt e which can engage both racks to lock the sashes in any desired position. The bolt is carried in a frame f secured to the top of the bottom sash, and the end of the nose c<2> engages the rack d while the side of the nose e<1> engages the rack c. It is held in the locking position by springs h, but can be withdrawn from both racks by sliding. It can be locked in its " on or " off " position by a spring-pressed locking pin provided with a handle j. In a modification the locking pin may be replaced by a catch forming part of a lock operated by a removable key.
Patent GB-437411-A (GB)
Title: An improved mailing card or cover for use with licensed business reply cards
IPC: B42D15/08
Filed: 1935-02-15
Abstract: 437,411. Envelopes. BRAY, C. N., 5, Basinghall Avenue, London. Feb. 15, 1935, No. 4938. [Class 146 (ii)] A mailing-cover comprises a sheet of paper, cardboard, or the like folded to provide front and back parts a, b, a window in the front part a, a pair of lugs f formed by slits on opposite sides of the window, a separate address card d for engagement under the lugs, and an extension g on the front part for engagement with the back part to maintain the cover closed. The address on the card d can be seen through the window of the cover. The card, which has also printed thereon the address of the addressee, is to be used as a reply card. The extension g is engaged in a slit in the back part b of the cover. The part b may have a folded integral extension, and a number of leaves i may be secured thereto along the fold line between the two parts a, b.
Patent GB-574158-A (GB)
Title: Apparatus for drying grains, grasses, vegetables, roots, and the like
IPC: F26B17/26
Filed: 1944-03-17
Abstract: 574,158. Drying grain &c. GOODALL, C. March 17, 1944, No. 5023. [Class 34 (ii)] Apparatus for drying grain &c. comprises a table a adapted to support the grain and permit an upward flow of heated drying air therethrough and to be vibrated so as to effect gradual movement or creeping of the grain from the feeding end to the discharge end thereof. The table may be in the form of a perforated metal sheet, wire gauze or expanded metal, but preferably it is constructed from a series of overlapping transverse slats b, providing air passages between their overlapping parts, and is supported in a position slightly inclined to the horizontal on legs c made from lengths of flexible steel strips, the vibratory movement being imparted to the table by one or more rotatable snail-type cams g acting in opposition to a spring or springs h, each disposed between a sleeve g secured to the table and a collar r on a fixed rod o. The position of the table, and thus of an abutment or abutments m thereon, relatively to the cam or cams g is adjustable by a nut u on each rod o so that the range of movement of the table may be varied ; alternatively, adjustable stops are provided at one end of the table and/or the speed of the cams is adjustable. Drying air is supplied to the passages in the table through a chamber s of tapered form which is in communication with a blower and is disposed underneath said table. Rows of inclined plough-like members may be arranged across the table to effect rolling of the grain during transit therealong, while the delivery end of the table may be provided with an adjustable weir w for regulating the depth of grain on the table and its rate of delivery and also a rotary discharging tedder x. If desired a number of tables may be arranged in series, the first one delivering to the second, and so on. Specification 512,036 is referred to.
Patent GB-1491631-A (GB)
Title: Fluid pressure sensitive electric switch
IPC: H01H35/24
Filed: 1975-02-06
Abstract: 1491631 Pneumatic actuation of switches STOP ALERT CORP 6 Feb 1975 [8 Feb 1974] 5047/75 Heading H1N A fluid pressure responsive electric switch assembly which may be used, for example, in parallel with the usual brake fluid operated switch to energize stop lights by manifold vacuum when the foot is removed from the accelerator prior to depression of the brake pedal, comprises first and second chambers 1 and 61 separated by a nipple 11, a diaphragm 67 dividing said second chamber into two sections 63 and 65 and biased to close said nipple 11, a switch 21, a movable switch operating member 51 in said first chamber, biased in one direction of its movement, whereby upon establishment of a pressure difference between said sections 63 and 65 beyond a predetermined threshold and in a predetermined sense said diaphragm 67 moves to open said nipple 11 allowing said pressure difference to move said member 51 against its bias to operate the switch 21, the assembly further comprising means 71 for adjusting said threshold and means 69 for automatically allowing a gradual decay of said pressure difference and thereby the delayed return of member 51. As shown section 65 has a threaded fluid coupling 71 which also serves to adjust the threshold at which the diaphragm 67 opens nipple 11 by setting the bias provided by a spring 75. The switch operating member 51 is a ball biased by gravity to depress arm 17 and normally hold contact 47 away from rigid contact 39. A pad 93 of felt or rubber absorbs the impact of ball 51 when it is lifted by vacuum created in section 63 by the lifting of diaphragm 67 by vacuum in section 65. A leak hole 69 in the diaphragm 67 allows decay of the pressure differential across the diaphragm, and a pad 55 filters atmospheric air entering by slot 53.
Patent GB-737018-A (GB)
Title: Machine for applying adhesive onto a mass consisting of chips, shavings, or the like, for use in the manufacture of pressed articles
IPC: B27N1/02
Filed: 1953-02-24
Abstract: <PICT:0737018/III/1> <PICT:0737018/III/2> <PICT:0737018/III/3> A machine for applying adhesive to a mass of chips, shavings or the like comprises a rotatable drum for applying the adhesive directly to the chips, at least one adhesive transfer roll rotating against the drum to apply thereto a thin film of adhesive, supplied from an adhesive trough, at least one corrugated roll rotating in the opposite direction to that of the adhesive-applying drum but at a greater surface speed, and forming with the drum a space through which the chips are passed so as to transfer adhesive to them, a fixed scraper near the space through which the chips have just passed under the corrugated roll and co-operating with the drum, and a baffleplate close to the scraper and of a form adapted to throw back over the corrugated roll a part of the chips which have just passed between it and the drum.  As shown, a roller 2 rotates in a tank 1 of liquid glue or other adhesive, and transfers a layer thereof, of a thickness controlled by a scraper 3 to two series of transfer rolls, 5, 6 and 7 and 51, 61 and 71, the rollers 7 and 71 supplying thin films of glue to two large glueing rolls 8 and 81.  Wood particles are introduced from a closed container in the direction of the arrow Y and fall on to the glueing roller 8, the particles being carried round in wiping contact therewith by a corrugated roll 10 rotating with a greater peripheral speed.  A second corrugated roll 11, rotating in the opposite direction to the roll 10, and at a still greater peripheral speed, causes tumbling and mixing of the particles, after which a third corrugated roll 12 urges them over a baffle-plate 13.  The particles then fall on the second glueing roll 81, the glueing operation is repeated, and they then drop on to a conveyer 15 ready for a subsequent operation.  The various rolls are driven through gearing from a common main drive shaft, the final drives to the corrugated rolls 10, 11, 12 and 101, 111 and 121 being through chain-and-sprocket gearing.  These rolls are mounted for united movement, their bearings 35 (Fig. 5) being supported by springs 33; upward movement is limited by an adjustable opposing spring 34, and downward movement by an abutment 39.  The glue transfer rolls 5, 7, and 51, 71 are also provided with movable bearings (Fig. 7), a stop 54 that is adjustable through a screw 53 being provided on an extension of the bearing 51, which is supported by a spring 49 the elastic pressure of which is adjusted by a screw 50.
Patent GB-488226-A (GB)
Title: Improvements in wearing apparel particularly for infants in arms
IPC: A41B13/06
Filed: 1937-02-20
Abstract: 488,226. Wearing - apparel. RICHMOND, A. F. D. Feb. 20, 1937, No. 5114. [Class 141] Wearing-apparel for 'infants in arms or adult invalids comprises a bag like device enclosing the feet and legs and doubly covering the chest. A rear part a extends the full length of the person and a front part b is secured to the back part up to the waist, the upper part b remaining free but capable of being buttoned at b<2> to buttons or fasteners c<1> at the neck. Two front portions c form together with the back a species of jacket. Access to the wearer is obtained by turning down the flap b<1>. Tapes d are provided in the sleeves which may also be made to enclose the hands. In this case a second set of draw tapes is provided.
Patent GB-236607-A (GB)
Title: Improvements in or relating to vapourizing and disinfecting and perfuming apparatus
IPC: A61L9/12
Filed: 1924-11-19
Abstract: 236,607. Palmer, F. G., and Ashford, A. W. Nov. 19, 1924. Vaporizing by air currents.-Apparatus for perfuming or disinfecting the air in theatres &c. comprises cup-like receptacles g, h, i for volatile liquid, fitted with absorbent wicks k held in place by arched spring members k engaging internal flanges h<1> on the cups, and supported in proximity to a ventilating fan or air inlet. In the form shown, arms g<1>, n, n<1> supporting the cups are mounted on a spindle f carried by a piece e connected to a base a by means of a slotted bar d and base bar c. The base a is secured to the circular base of a, fan by means of adjustable lugs b, and the parts d, e are adjusted so that the cups are held in the vertical position in the air stream from or to the fan. In modifications the cups are secured directly to the grid of a ventilating inlet, or a series of cups are suspended by a chain below a ceiling fan.
Patent GB-402378-A (GB)
Title: Improvements in and relating to ignition devices for internal combustion engines
IPC: H01T13/14
Filed: 1932-02-22
Abstract: 402,378. Sparking-plugs. VINE, S. W., 53, Human Street, Krugersdorp, Transvaal, South Africa. Feb. 22, 1932, No. 5208. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 22, 1932]. Drawings to Specification. [Class 7 (iv).] Either electrode is hollow, with a non-return valve at the outer end.
Patent GB-911522-A (GB)
Title: Preparation of aluminium trialkoxide compounds
IPC: C07F5/06
Filed: 1961-02-13
Abstract: An aluminium trialkoxide is prepared by reacting a trialkylaluminium with a gas containing molecular oxygen until substantially all of the trialkylaluminium has been converted to an alkyl aluminium dialkoxide, then adding to the reaction mixture from 0.25 to 2 moles of an aluminium trialkoxide per mole of alkyl aluminium dialkoxide, and reacting the resulting mixture with an additional quantity of oxygen-containing gas until all of the alkyl aluminium dialkoxide has been oxidised to aluminium trialkoxide.  The alkyl groups of the added aluminium trialkoxide may be the same or different from those present in the alkyl aluminium dioxide.  The trialkylaluminiums used as starting materials preferably have alkyl groups containing up to 20 carbon atoms.  Suitable conditions for carrying out the process are temperatures from -10 DEG C. to 60 DEG C. and partial pressures of oxygen from 1 to 30 p.s.i.
Patent GB-475490-A (GB)
Title: Improvements in and relating to electric wave filters
IPC: H03F1/50
Filed: 1936-02-21
Abstract: 475,490. Impedance networks. PERCIVAL, W. S. Feb. 21, 1936, No. 5335. [Classes 40 (iii) and 40 (v)] A filter comprises one or more half-sections, each half-section having series and shunt reactances, the filter being terminated by an impedance equal to the characteristic impedance of the filter, while at the unterminated end the initial series or shunt reactance is made equal (within 30 per cent) to a full series or shunt reactance. This is shown to result in the impedance at the unterminated end remaining constant over the pass range. As applied to a low-pass filter coupling two valves V1, V2, Fig. 2, of a video-frequency amplifier, the terminating components are L3, C2 and part of L2, the filter comprises a part of L2, (=L1 /2), the capacity between leads XY, L1 and the capacity between leads P, Q. This latter capacity is made equal to the former capacity. The valve V2 may be replaced by a cathoderay tube. As applied to a band-pass filter, the impedance T, Fig. 3, terminates the filter comprising the inductance L5 shunted by the capacity between leads X, Y, coupled by L1, G to the inductance L6 shunted by the capacity between leads P, Q. The inductances L5, L6 and the capacities between leads XY, PQ are made equal respectively.
Patent GB-490911-A (GB)
Title: Improvements in or relating to mercury cathodes for use in electrolysis
IPC: C25B1/36
Filed: 1938-02-21
Abstract: 490,911. Electrolysis. I. G. FARBENINDUSTRIE AKT.-GES. Feb. 21, 1938, No. 5424. Convention date, March 20, 1937. [Class 41] In apparatus for the electrolysis of saline solutions the cathode consists of mercury which is caused to overflow from a trough r over the entire upper edge u of a smooth metal vertical guide surface t of such configuration as to prevent break-up of the vertically flowing mercury sheet by the effect of surface tension with consequent exposure of the guide surface and generation of hydrogen. The guide surface may be of closed contours, for example two parallel sheets joined by hemicylindrical ends ; when of unclosed formation, as shown, its width should diminish downwardly. Electric connection to the member t may be made by a metal rod s extending through an insulating wall k. The guide surface, if of iron, may be coated with a metal soluble in mercury.