baber/WOPTO huggingface dataset:
Patent GB-1137444-A (GB)
Title: Method and apparatus for forming a strand of tobacco
IPC: A24C5/18
Filed: 1967-06-08
Abstract: 1,137,444. Continuous rod cigarette making machines. B.A.T. CIGARETTENFABRIKEN G.m.b.H. 8 June, 1967 [24 June, 1966], No. 26525/67. Heading A2C. In an apparatus for forming a tobacco strand from tobacco which is continuously supplied in a loose condition and is fed into a continuously operating conveying arrangement comprising a channel closed on all sides, in a section extending from the feeding point into the said closed channels, parts at least of the tobacco are given an additional movement in the direction of conveyance until they come to a compacting point the position of which is adjustable and controls the said additional movement, whenceforth only forces producing conveyance at the normal strand speed act on the tobacco in the said channel. In one embodiment, Figs. 2, 3, tobacco is showered from a distributer V, on to a suction-backed conveyer belt 16, and between two perforated lateral conveyer belts 26, 28. A further conveyer belt 20, which is unperforated, and a conveyer belt 22 are both driven at substantially the speed at which the formed tobacco strand is to be conveyed, while the belts 16, 26, 28 are driven at approximately twice this speed. Belt 22 is vertically adjustable, and may be so adjusted as to continuously vary the channel 24 formed between the belts 20, 22, 26, 28. Suction is applied to the belts 26, 28 through a series of nozzles 37, each provided with a two way valve device 38, 39 the valves of which open in that region of the channel 24 where the tobacco is still being compacted, but close themselves automatically beyond the compacting point due to the greater resistance to air flow of the compacted tobacco strand. Provision may be made for altering the operative length of the belt 16. In another embodiment, Fig. 5, tobacco is showered on to a suction-backed perforated conveyer belt 50, the forward end of which receives its suction supply through cells 61 from a source 58 that feeds a hollow piston 59, only those cells 61 to the left (as shown) of the end 76 of the piston 59 being so supplied. A further perforated conveyer belt 65 receives suction through a series I to VIII, of chambers 67. Detection of the compacting point of the formed tobacco strand by control diaphragms 68 is used to automatically move the piston 59 so that its end 76 underlies this compacting point, position V in the example shown.
Patent GB-495755-A (GB)
Title: Silencing equipment for air, heating, ventilating, and exhaust ducts, tunnels or the like, and sound treatment for rooms
IPC: E04B1/74
Filed: 1937-03-16
Abstract: 495,755. Silencing gaseous currents. NEELANDS, A. R. March 16, 1937, No. 26586/38. Divided out of 495,699. [Class 7 (ii)] [Also in Groups XIII and X] Silencing-equipment for air ducts or tunnels comprises sheets or panels of plywood or metal which are fixed at varying distances from the walls of the enclosure, to provide an air cushion of sufficient thickness to absorb low sound frequencies. In Fig. 1, the walls A may be lined with sound-absorbing material, and metal boards or boxes C are spaced from the walls to leave air spaces D. The boards or boxes may consist of perforated metal sheets E backed with porous material such as slag wool, and when boxes are used, some may be empty and some filled with porous material. In Fig. 2, the spaces between the walls and overlapping boards C' may be filled with boxes H of various sizes, and with slag wool. The sheets or panels may be of honeycomb section. Specification 495,699 is referred to.
Patent GB-904740-A (GB)
Title: Electrolysis of aluminium oxide
IPC: C25C3/18
Filed: 1959-08-04
Abstract: 904,740. Electrowinning of aluminium. PECHINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES. Aug. 4, 1959 [Aug. 6, 1958], No. 26595/59. Drawings to Specification. Class 41. A fused electrolyte for the production of aluminium by electrolysis comprises 10% or less of aluminium oxide dissolved in a mixture of 17.5% or less of lithium cryolite, 5% or less of potassium cryolite, and the balance of sodium cryolite, at a temperature at or above 900‹ C. The preferred concentration of aluminium oxide is 7¢%.
Patent GB-891800-A (GB)
Title: Production and purification of diphenylolalkanes
IPC: C07C37/20
Filed: 1959-08-04
Abstract: A process for the production of a high purity diphenylol alkane having a melting point of at least 50 DEG C. comprises reacting an excess of a phenol with an aldehyde or ketone in the presence of gaseous hydrogen chlolide at a temperature of not more than 80 DEG C. until the aldehyde or ketone has been substantially consumed, separating the water, acid, and excess phenol from the reaction mixture by distillation and purifying the crude diphenylol alkane by dissolving out the impurities at substantially room temperature in an aromatic hydrocarbon or chlorinated aliphatic or aromatic hydrocarbon solvent and separating the impurities from the solvent, the reaction between the phenol and the aldehyde or ketone being carried out in the presence of the impurities separated from the solvent and recycled into the reaction mixture, if the process is a continuous one, or derived from a previous batch, if the process is carried out batchwise.  The reaction is preferably carried out by reacting phenol with acetone, cyclohexanone or formaldehyde in the presence of the impurities obtained from a previous run or batch, separating off the water, acid and excess phenol, subjecting the crude bis phenol to a treatment comprising distillation and/or slow crystallisation from the molten state followed by breaking down the crystalline mass into grains and finally dissolving out in the impurities in benzene or methylene dichloride.  Examples illustrate the solvent extraction step alone or following the condensation.
Patent GB-681332-A (GB)
Title: Improvement in door lock
IPC: E05B55/00
Filed: 1950-11-02
Abstract: 681,332. Door latches. KOMPANIEZ, A. Nov. 2, 1950 [Dec. 24, 1949], No. 26737/50. Class 44 The bolt 8, Figs. 2 and 4 of a door latch is mounted in a casing 4 in a horizontal bore 5 from the edge of the door 1 and the bolt-operating mechanism is mounted in a housing 7 accommodated in a through bore 6. The housing 7 is formed of a pair of semicylindrical members 16, 17 (Fig. 14) forming when assembled a pair of side hubs 21, 23 and 22, 24 united by rings 25, 26 and adapted to receive operating spindles 41, 60, an actuating member 27 connected to a head 14 of the bolt being slidably mounted in the housing and acted upon for displacement of the bolt by followers on spindles 41, 60. The rear end of the bolt casing 4 is formed with slots 13 for engagement by the side of an opening 11 in the housing member 16. The spindles 41, 60 are of tubular form, the inner ends being cut away to leave extensions 44, 62 acting as followers. Handles 45, 63, formed with tubular extensions 46, fit over the spindles 41, 60 and are retained by spring loaded plungers 47, 64. Lugs 42, 61 on the spindles prevent outward movement of the housing 7 and the ends of the follower portions 44, 62 abut to prevent inward movement. Inside the spindle 41 is mounted a sleeve 57 having a follower part 59 engaging the member 27 and adapted to be rotated by a barrel lock 52, a rib 51 of which is located in a slot 50 in the spindle 41. Rotation of the key 54, Fig. 14 in the lock 52 causes retraction of the bolt independently of the handle-spindle. A downward projection 72 of the spring 48 controlling the plunger 47 abuts the lock extension blade 53 so that the outside handle 45 cannot be removed until the lock is turned to the unlocked position. A spindle 36 fixed to the housing member 17 by a screw 39 guides a bolt projecting spring 38 acting on the near end of the member 27 forward movement being limited by the head 37. The end of the follower part 44 of the spindle 41 is closed by a wall 43. The wall and the head are formed with aligned slots. A locking blade 74, Fig. 2, having a part 75 guided in the slot in the head 37 may be projected by a push button 78 to position a push button 78 to position a wider part in the slot 73 in the follower which is thereby locked against rotation. The push button is locked or freed by rotation. In an alternative arrangement the blade 74 carries a U shaped spring the two ends. of which straddle and are secured to the blade and the projecting part of which engages in a slot in the spindle 65 to retain the blade in the locking position, the spring being released by slight rotation of the spindle 65 to allow the blade and push button to return to free position under the action of spring 81.
Patent GB-231106-A (GB)
Title: Improvements in and connected with bags and the like
IPC: A45C13/06
Filed: 1924-11-11
Abstract: 231,106. Hibbert, G. P., and Crimp, A.G. Nov. 11, 1924. Bags.-The parts of the hinged mouth-frame of a bag or the like are held closed by means of a catch disposed below a hole in the frame through which a " stem " is adapted to be inserted to release the catch when it is desired to open the bag. In the form shown the catch consists of a blade spring d secured to the part a of the frame and engaging an undercut-depending part of a catch C secured to the other part. By passing a stem f through the hole in the frame the blade spring can be released. The stem f or several stems may be carried by a ribbon so as to form an ornamental appendage to the bag.
Patent GB-446090-A (GB)
Title: Improvements in or relating to plug-and-socket and other couplings, switches, fuses and similar electrical appliances
IPC: H01H85/20
Filed: 1934-09-20
Abstract: 446,090. Binding-posts. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. Sept. 20, 1934, No. 27012. [Class 38 (i)] A binding-post, e.g. that associated with the socket in a plug and socket coupling, has means which may be made from wire for preventing the projection of the cable beyond it yet so that the cable can be seen from the front and can he clamped by an ordinary clamping screw. As shown in Figs. 3, 4, the means consists of a thimble a cut away at the side to admit the clamping screw and having apertures a<4> at the top to enable the cable to be seen. In a modification, Figs. 5, 6, the means consists of a metal strap partially covering the upper end of the cable hole in the plug socket and held to the insulating base by deformable ears a<6>.
Patent GB-467002-A (GB)
Title: Improvements in and relating to electrically heated melting pots for type casting machines and the like
IPC: B41B11/76
Filed: 1936-10-06
Abstract: 467,002. Electrically-heated metalpots. KLINGE, P. A. Oct. 6, 1936, No. 27079. [Class 39 (iii)] Metal-pots for type-casting machines &c. are provided with one or more internal electric heating-elements and with one or more external elements, which are connectible with the current supply alternatively with the internal elements by adjustment of a switch. The external element is for the purpose of quickly melting pieces of solid metal placed in the pot, and also forms a substitute for the internal element if this should be burnt out. The internal element 4, Fig. 1, is placed loosely within the pot 1, and has an extension 5, through which leads are carried to a switchboard 11, Fig. 2. The external element 6 is preferably clamped against the pot by a plate 8, so that heat is transmitted to the whole of the pot, and has an extension 10, through which leads are carried. The leads of the internal element are connected to terminals 16, 17, and those of the external element to terminals 15, 17. A pivoted switcharm 18, movable between the terminals 15, 16, enables current to be supplied to either element.
Patent GB-704835-A (GB)
Title: Master cylinder with freely mounted and axially floating sealing ring
IPC: B60T11/22
Filed: 1952-10-28
Abstract: 704,835. Hydraulic brakes. FIAT SOC. PER AZIONI., and BALDWIN,. P. S. Oct. 28, 1952 [Oct. 31, 1951], No. 27090/52. Class 103(1) In a master cylinder for hydraulic brakes, particularly for motor vehicles, the valve device for controlling flow of liquid from the reservoir 15 to the chamber in the cylinder in front of the piston 6, comprises an elastic ring 13 free to float in a channel formed between a flange 11 on a ring 10 and the head 12 of the end plug 2. During the pressure stroke of the piston the ring 13 is pressed axially against flange 11 and outwardly by pressure through radial bores 14 in the ring 10 against the inner surface of the cylinder thus forming an effective seal. During the retractile stroke of the piston, liquid can flow in from the reservoir 25 through a bore 16 and past the ring and flange 11. In another arrangement, shown in Fig. 3, the sealing ring is located in a channel formed in the head of the piston 206. In this case, during the pressure stroke, the ring 113 is kept against the shoulder 112 by the effect of friction between its outer surface and the interior surface of the cylinder as well as by the thrust of the piston and fluid pressure acting through the radial bores 114.
Patent GB-1516353-A (GB)
Title: Energy absorbers
IPC: F16F13/02
Filed: 1975-06-26
Abstract: 1516353 Combined elastomeric spring and friction shock absorber units GOULD Inc 26 June 1975 [8 July 1974] 27099/75 Heading F2S A shock absorber comprises a preloaded elastomeric member 16 housed in a casing 14 and loaded by a movable member 12 on impact, the casing having a restricted portion 14a, where the elastomeric member is in continuous frictional engagement with surfaces on the movable member and the casing, and an enlarged portion 14c, into which the elastomeric member is advanced and where it resiliently deforms into a wave-like configuration (Fig. 3) with further frictional engagement at spaced locations.  The total force provided by friction and resilient deformation is substantially constant. The casing may be provided with a friction coating.
Patent GB-1013226-A (GB)
IPC: D06P5/12
Filed: 1962-07-13
Abstract: White and coloured reserve prints are obtained on cellulose-containing materials which are dyed with water-soluble fixing agents which contain at least twice the grouping <FORM:1013226/D1-D2/1> bound to an acyl residue, wherein Y is a hydrogen atom or an organic residue and R is a hydroxyl, -O-alkyl or substituted amino group where Y can be connected to the aryl residue with the formation of a hetero ring, and with those meter-soluble dyestuffs which can react with the fixing agents, the process being characterized by applying locally a reserve printing paste which inhibits the reaction of the fixing agents with the dyestuffs by greatly displacing the pH to the alkaline side.  The preferred reserving agents are sodium hydroxide, carbonate, triphosphate and metasilicate, borax, triethanolamine, N-benzyl-diethanolamine and N-benzyl-trimethylammonium hydroxide. Suitable fixing agents and dyestuffs are described in Specifications 898,967, and 942,070.  The reserve printing paste may also contain substances which increase the degree of whiteness, e.g. zinc oxide, optical brightening agents and formaldehyde-sulphoxylate, thickening agents, e.g. wheat starch, denatured wheat starch, tragacanth, cellulose ethers or esters, British gum and oil-in-water emulsions as well as usual additives, e.g. printing oil, glycerol, thiodiglycol, anti-foaming agents, N-benzyl-sulphanilic acid sodium salt, urea and thiourea.  For the production of coloured reserves the print paste also contains combinations of water-soluble diazoamino compounds and coupling components or a reactive dyestuff.  The print paste may be applied before or after the impregnation with the fixing agent and dyestuff, preferably with intermediate drying at 60-70 DEG C. Fixation may be effected, preferably after another intermediate drying, at 130-150 DEG C. for 3-10 minutes and this is desirably followed by soaping and rinsing to remove any unfixed dyestuff. Examples of reserve printing on cotton are given.
Patent GB-1244574-A (GB)
Title: Means for lining the roof or wall of an underground tunnel or gallery
Inventor: KACIC WILHELM
IPC: E21D11/15
Filed: 1969-05-28
Abstract: 1,244,574. Tunnels &c. W. KACIC. 28 May, 1969 [28 May, 1968], No. 27116/69. Heading E1F. A tunnel lining is erected by extending a panel 1 of sheet material between opposed beams 5', 6 of two adjacent pairs of beams 5', 6' and 5, 6, and reducing the spacing in one pair to tension the panel. The panel may be wire netting and is anchored to the beams by elements 2 having hooks 3 engaged in the mesh. The beam spacing is reduced by tightening nuts on "U" shaped bolts interconecting the beams of a pair. The panel may be rolled up for storage and transport adjacent a pair of beams.
Patent GB-992951-A (GB)
Title: Paper-lined by-product gypsum products
IPC: C04B28/14
Filed: 1961-07-27
Abstract: <PICT:0992951/C1/1> By-product gypsum, e.g. from a phosphoric acid plant, is milled, calcined and milled a second time.  Free acidity is neutralized with ammonia, preferably in two stages, one before calcining and the other during or after calcining, but the first of these may be omitted. As shown, an aqueous slurry of by-product gypsum is passed along the line 10 to a scalping screen 11, which rejects at 12 oversize particles and much of the silica present.  The screened slurry at 13 is diluted with water at 14 and washed in centrifugal separator 15 to remove carbonaceous material and part of the free acid. The separated gypsum in line 16 is neutralized with aqueous or anhydrous ammonia at 18, and dewatered in the filter 19. The partially dewatered product is dried in the fluidized-solids drier 23 and carried by a conveyer 26 to a roller mill 27.  The milled product is carried by a conveyer to a calciner 29 operating at a temperature of at least 196 DEG  C. to dehydrate it to the hemihydrate.  Aqueous or anhydrous ammonia is added at 30 to neutralize the further acids liberated in the calcination.  The product (stucco) is taken by conveyer 31 to a second roller 32.  This product can then be taken by a further conveyer 34 to a pin-mixer 35, where it is mixed with water and optionally with further ammonia and other ingredients to make a plaster for paper-faced plasterboard (see Division D2). In optional variations: the material rejected at 12 is ground and recycled; a second centrifugal separator follows the first (15); the washing takes place in thickeners or hydro-separators instead of centrifugal separators; the dewatering is carried out in a centrifuge instead of the filter 19; a rotary drier is used instead of the fluidized-solids drier 23; a hammer mill is used instead of the roller mill 27; the second addition of ammonia is at the pin-mill 35 instead of at the calciner 29; a hammer mill or tube mill is used instead of the roller mill 32.  Specification 858,469 is referred to.
Patent GB-996834-A (GB)
Title: Improvements in or relating to arrangements in coveying systems
IPC: B65G33/02
Filed: 1963-07-09
Abstract: 996,834. Conveyers. O. OHRNELL. July 9, 1963, No. 27207/63. Heading B8A. A rod 1 provides a conveyer for suspension loop load carriers, e.g. coat hangers. The rod is inclined sufficiently (e.g. 1 to 2 degrees) to establish a preferred direction of sliding movement under gravity, but rotation of the rod by motor 3 is necessary to overcome friction before conveying movement takes place. The motor speed may be varied and the rod inclination varied or reversed. In Fig. 1 the rotated rod is used to transfer load carriers between a fixed gravity slide rod 4 and a screw conveyer 5. Fig. 2 depicts a storage conveyer in which a screw feeds the rod in its fall line position and receives load carriers from the rod in the latter's brokon line position.
Patent GB-497620-A (GB)
Title: Device for magnetic deflection of a cathode ray
IPC: H01J29/76
Filed: 1937-10-08
Abstract: 497,620. Valve generating circuits; cathode - ray tubes. RADIOAKT.-GES. D. S. LOEWE. Oct. 8, 1937, No. 27382. Convention date, Oct. 8, 1936. [Classes 39 (i) and 40 (v)] To produce waves of saw-tooth current in the deflecting coils of a cathode-ray tube, the output of a relaxation oscillator 9 is fed to a valve 1. through a network 11 which accentuates the higher harmonics of the relaxation oscillations relatively to the lower ones. The anode circuit of valve 1 comprises resistance 4 having a value which is large compared with that of coils 2a, 2b, and small compared with the internal resistance of the tube 1. To allow the coils 2a, 2b to act symmetrically on the tube 12, the coils are made equal and are connected in series. An iron yoke 13 surrounds the tube and the polepieces 14 enter the tube and extend as near as possible towards the cathode ray.
Patent GB-660375-A (GB)
Title: Improvements in or relating to tubular getter units for vacuum tubes
IPC: H01J7/18
Filed: 1948-10-22
Abstract: 660,375. Making getters for thermionic valves. PHILIPS ELECTRICAL, Ltd. Oct. 22, 1948 [Oct. 27, 1947], No. 27501/48. Class 83 (ii). [Also in Groups XXVIII and XL (a)] A wire getter comprising a hollow container 1 filled with the getter material 2 has a longitudinal slot 4 or 5 along the container to restrict the spread of the vaporized material. The wire is formed by filling a metal tube with the getter material and then swaging or drawing it down to about <SP>1</SP>/ 10  of its original diameter. Initially, a longitudinal saw-cut is made in the container, which saw-cut is then closed up before inserting the getter material. During the drawing-down operation, the saw-cut opens again, Fig. 2. Alternatively, immediately after drawing down, the wire is passed between a guide and a wheel which impresses a V-shaped slot in it, Fig. 3.
Patent GB-505489-A (GB)
Title: Improvements in and relating to intake manifolds for the cylinders of internal combustion engines
IPC: F02B75/22
Filed: 1937-10-11
Abstract: 505,489. Cylinders. FUNDERBURK, O.C. Oct. 11, 1937, No. 27535. [Classes 7 (ii) and 7 (iii)] An intake manifold for two or more banks of cylinders comprises two sheet metal plates D, E secured together at their edges to form a space subdivided by partitions into as many chambers as there are banks of cylinders, the connections to the individual cylinders being such that successive suctions are made from different chambers. A manifold for a V8 engine is shown, a partition F dividing the manifold into two chambers connected to the cylinders by passages a, b, and supplied with combustible mixture by passages C. The plate D is dished above a further plate D<1> to form a chamber through which exhaust is passed.
Patent GB-1249814-A (GB)
Title: Improved process for depolymerizing cellulose ethers
IPC: C08B15/00
Filed: 1969-06-02
Abstract: 1,249,814. Depolymerizing cellulose ethers. DOW CHEMICAL CORP. 2 June, 1969 [13 June, 1968], No. 27851/69. Heading C3A. A water-soluble cellulose ether is depolymerized by irradiating a solid water-soluble cellulose ether at 75‹ to 125‹ C. in the presence of oxygen with gamma radiation at a dose rate of 10 to 2000 Krad./hr. The cellulose ether, which may be irradiated in the form of a freeflowing particulate solid, is preferably given a total dose of 1À4 to 2À3 Mrads. of gamma irradiation. In particular, the viscosity of a watersoluble cellulose ether having a 2% by weight aqueous solution viscosity at 20‹ C. of 50- 4000 centipoises is reduced to give an ether with a 2% by weight viscosity of 2-25 centipoises. The cellulose ether may be an alkyl-, carboxyalkyl- or hydroxyalkyl ether, e.g. hydroxypropylmethyl cellulose.