baber/WOPTO huggingface dataset:
Patent GB-450283-A (GB)
Title: Improvements in separators
IPC: B07B11/04
Filed: 1935-01-11
Abstract: 450,283. Separating solid materials. FRASER, G. H., 226, Quincy Street, Brooklyn, New York. U.S.A. Jan. 11, 1935, No. 26139. Divided out of 450,255. [Classes 82 (ii) and 117] Relates to separators of the kind in which the material is distributed by a rotary spreader 23 across the lower part of a casing 15 and is winnowed by a current of air or other fluid produced by a fan 35 and circulating through the casing 15 and the annular space between it and an outer casing 11, the coarse material being collected in the receiver 19 and the fine material in the receiver 13. The invention consists of a rotary valve 61, preferably of inverted cone shape, which is disposed above the outlet of the casing 15 and is vertically adjustable to control the passage of the air &c. current. Preferably the adjustment is effected by a device which is stationary and can be adjusted during the working of the machine, and the spreader and valve are both connected to the device for simultaneous adjustment in the same direction. In the construction described, the valve 61 and the spreader 23 are carried by a sleeve 59 which is suspended by a collar 91 carried by a counterweighted and adjustable lever 93. The sleeve is driven by the shaft 27 which is connected thereto by a lever 69 fulcrumed in a recess in the shaft and passing through a slot in the sleeve. The fan shaft 41 surrounds the sleeve 59 and both the fan and distributer shafts are driven through variable speed gearing which is controlled by the lever 93 through the crank arms 107 so that the raising of the distributer and valve 61 decreases the speed of the distributer and increases the speed of the fan. The lever 69 carries a baffle plate 67 which is variably disposed in the separating space inside the casing 15 automatically with the adjustment of the sleeve 59 and simultaneously segments 55, 51 of the distributer are moved by a bell-crank lever 57 to vary the radius of the distributer. The distributer shaft also carries a partition 75, a retarder strip 73 and a tray 77 for receiving deposits from the filter vanes 39 and discharging them into the collecting bin 13. Hammers 85 for knocking the collector 19, the filter 39 and the inner casing 15 are actuated by an anvil rod 89 and gravity hammer 87. The filter and inner casing are carried by rods 133 and are vertically adjustable. In the annular space between the casings are disposed the deflecting baffle 139, and conical rings 83 connected by vanes 135 for suppressing the whirling movement of the fluid. A vent pipe 81 passes into the inner casing and opens under the distributer. Specification 450,255 is referred to.
Patent GB-1039539-A (GB)
Title: A bucket excavator
Inventor: REBROV ALEXEI JERGEEVICH
IPC: E02F3/30
Filed: 1963-07-02
Abstract: 1,039,539. Shovel excavators. VSESOJUZNY NAUCHNO-ISSLEDOVATALSKY INSTITUTE STROITELNOGO I DOROZHNOGO MASHINOSTROENIA. July 2, 1963, No. 26158/63. Heading E1F. In a face shovel excavator a winch-controlled cable is so provided as to ensure that as the bucket-carrying arm is swung upwards by the cable it is also pushed outwards by the cable.
Patent GB-518334-A (GB)
Title: Process for the production of catalysts
IPC: B01J23/74
Filed: 1938-09-08
Abstract: 518,334. Catalysts ; hydrocarbons from carbon monoxide and hydrogen. RUHRCHEMIE AKT.-GES. Sept. 8, 1938, No. 26276. Convention date, Sept. 27, 1937. [Class 1 (i)] [Also in Group IV] Catalysts containing cobalt and magnesium, which may be activated by the addition of thorium, for use in the synthesis of benzine from carbon monoxide and hydrogen are obtained by precipitation, usually as carbonates, simultaneously or successively from solutions of nitrates or chlorides of the metals, using a magnesium solution having a larger content of magnesium than corresponds to the stoichiometric ratio of magnesium to cobalt in the catalyst to be made. Ageing phenomena which affect the surface of the cobalt precipitated owing to the time required to precipitate all the magnesium is thereby avoided. An excess of 25-75 per cent. of magnesium may be used, but 10 per cent. excess is sufficient.
Patent GB-744869-A (GB)
Title: Improvements relating to 2-substituted-mercapto-6-disubstituted-amino-8-mercaptopurines and salts thereof
Filed: 1953-09-24
Abstract: The invention comprises purine derivatives of the formula <FORM:0744869/IV(a)/1> where R1 is alkyl or mononuclear aralkyl and R2 and R3 are alkyl, mononuclear aryl or mononuclear aralkyl or with the N atom form a 6-membered ring.  These are made by treating 2-alkylthio (or aralkylthio)-4:5-diamino-6-NR2R3-pyrimidines with carbon disulphide in an inert solvent, preferably at 25-100 DEG  C. They form salts with strong acids such as hydrochloric, sulphuric, phosphoric and picric, and also with alkali, alkaline earth and heavy metals.  The mercapto group may be alkylated and the products then alkylated in the 7- or 9-position; if desired the sulphur groups can be removed by reduction.  The products of the invention may also be used for making the purine derivatives of Specification 744,865. Examples show the production of the following substituted purines: 2-methylthio-6-dimethylamino - 8 - mercapto, 2 - methylthio - 6 - diethylamino - 8 - mercapto, 2 - methylthio - 6-N - methylanilino - 8 - mercapto, 2 - methylthio - 6 - butylbenzylamino - 8 - mercapto and 2 - benzylthio - 6 - piperidino - 8 - mercapto.  Other radicals specified for R1 are ethyl, propyl, butyl and substituted benzyl; R2 and R3 may also be propyl, substituted phenyl or substituted benzyl and NR2R3 may be morpholino.  2 - (Substituted mercapto) - 4:5 - diamino - 6-NR2R3-pyrimidines are obtained from the corresponding 2:4:6-trisubstituted pyrimidines by treatment with nitrous acid to give the 5-nitroso derivatives and reduction of the latter.  2- (Substituted mercapto) - 4 - amino - 6-NR2R3-pyrimidines are made as in Specification 744,867 from 2 - mercapto - 4 - amino - 6-hydroxypyrimidine by alkylation or aralkylation of the mercapto group, replacement of hydroxyl by halogen and reaction with HNR2R3.
Patent GB-220502-A (GB)
Title: Improvements in and relating to machine for applying tape to sheet material
IPC: A43D43/06
Filed: 1923-10-22
Abstract: .220,502. Imrie, H., (Boston Machine Works Co.). Oct. 22, 1923. Affixing by adhesives.-A machine for applying adhesive tape to a fabric such as the upper part of a boot is arranged so that the tape can be laid along a curve when required and is secured in place by being pressed down by a presser-foot. The tape 2 is fed forward between a guide 10 and a pivoted tension-foot 11 pressed down by a spring 33. It then passes to the work 1 which is fed forward over a spring-supported roll 5 under a presser-foot 13. The presser-foot has an oscillating motion so as to press the tape on to the work and feed the two forward together; the amplitude of the forward movement of the foot is less than the breadth of the face of the foot. the curvature of which is slightly less than that of the roll 5. so that no part of the tape escapes pressing and some is pressed twice. To give the foot 13 this motion it is carried on a head 16 sliding and turning about a fixed stud 20 and operated by an eccentric 19 on a shaft 15. The tape 2 passes over fixed studs 34, 35, 38, 39 and a stud 37 on the head 16. To ensure the tape being fed forward without undue tension, gripper-arms 45, 46 hold it against the stud 38 as the head 16 rises and the stud 35 as the head falls. During the latter motion an arm 40 and stud 41 actuated by a cam 42 feed the tape forward to a roll 23. To assist in laying the tape on a curve, spring- pressed pivoted arms 54 are provided which gather the inner edge into folds as shown in Fig. 7, which folds are afterwards pressed down by the foot 13. For laying round very sharp curves the arm 54 on the inner side of the curve may be put out af action by a cam. An edge guide, mounted so as to be put out of action when not required may be provided.
Patent GB-939489-A (GB)
Title: Photo-electric scanning device
IPC: G01N21/89
Filed: 1960-07-28
Abstract: 939,489. Photo-electric flow detectors. E. SICK. July 28, 1960 [July 31, 1959], No. 26386/60. Class 40 (3). In an arrangement for detecting flaws or defects in surfaces providing diffuse reflection by scanning the surface line by line with a focused beam of rays oscillating in one plane, the scanning beam is directed to a concave mirror curved in such a way that the sharp focusing of the beam is equalized over the width of the surface which is being examined, and that the focal point of the beam of rays is imaged on a radiation detector device. As shown diagrammatically in Fig. 1, a beam from a source 1 is focused by a lens 2 on a slit 3 and passes via a half-silvered mirror 8 to a rotating mirror drum 4 and to a concave cylindrical parabolic mirror 5 so that with the aid of a cylindrical lens 7 a small scanning spot is sharply focused over the whole width of the surface 6 to be scanned for flaws. The light reflected from the surface passes back via the elements 4, 5, 7 to the half-silvered mirror from which it is reflected to a slit 10 behind which is a photoelectric device 9. In a modification, Fig. 2 (not shown), the reflected beam passes to the photoelectric cell via a small mirror located near the slit 3 and in a further modification, Figs. 3, 4 (not shown), the variably reflected beam is arranged to pass beneath the mirror 5 and is directed to the photo-electric cell by means of a second concave mirror, or to a number of photocells associated with an equal number of concave parabolic mirrors. The different effects of wrinkles of the surface as opposed to superficial spots are illustrated in connection with Figs. 8, 9 (not shown). A scanning assembly, Figs. 10 and 11, comprises a light source 22 providing a beam reflected by a mirror 23 to an objective lens 24 and to a rotating mirror drum 25 from which the scanning beam passes via inclined mirrors 26, 27 to a mirror 28 and thence across a cylindrical parabolic mirror 29 to provide a detecting beam equally focused and reduced to point size by a cylindrical lens 31 across the width of the sheet 30. The diffusely reflected beams 32, 33 due to surface spots and wrinkles pass in the reverse path through the optical system, and the beam passing through the upper and lower parts of the slit is reflected by mirrors 34, 35 or 34, 37 to respective photoelectric devices 36, 38, which are preferably photo-multipliers. In a modification of Fig. 2, Fig. 12 (not shown), the light diffusely reflected from the sheet is deviated by an optical wedge to a different path in relation to the mirror 5 and in which it impinges on a separate rotating mirror drum passing the reflected beam via a slit in a diaphragm to a photo-electric device.
Patent GB-260758-A (GB)
Title: Improvements in clutch mechanism, specially suitable for use in telegraphic apparatus
IPC: H04L13/04
Filed: 1925-10-21
Abstract: 260,758. Creed & Co., Ltd., and Creed, F. G. Oct. 21, 1925. Clutches, ratchet; gearing for stopping and starting machinery; securing clutch members on shafts.-In order to avoid timing errors between the driving and driven elements of clutchmechanism of the pivoted-pawl type, due to the pawl " jumping " one or more teeth, the driving- member comprises a number of wheels with relatively-staggered teeth, and the driven member carries a like number of pawls independently pivoted on a common axis and normally held out of engagement by a single detent, so that, on release, one pawl will fully engage. As applied to driving a cam drum 11 for telegraphic apparatus of the kind described in Specifications 191,093, [Class 31 (ii), Punching and perforating machines &c.], 204,398, and 228,610, [both in Class 40 (iii), Telegraphs, Electric], staggered ratchet wheels 1, 2 connected together and loosely mounted on a driving-shaft 3, are driven through a shock-absorber comprising a gapped spring ring 5, engaged by a pin 6 in the shaft and a projection 4 on the wheel 2. Pointed pawls 7, 8, independently pivoted at 9 on a carrier 10 secured to or integral with the drum 11, are urged into engagement by blade springs 12 separated by a plate 9<a>, and held out of action by a controlling- detent 13. Backward movement of the driven parts under the action of the springs 12 is prevented by engagement of a roller 10<a> on a spring- pulled lever 10<b> with a depression in the carrier 10.
Patent GB-453189-A (GB)
Title: Improvements in or relating to radio tube grids and the manufacture thereof
IPC: H01J19/00
Filed: 1935-09-24
Abstract: 453,189. Making thermionic - valve grids. KERSHAW, H., 102, Murray Street, Newark, New Jersey, U.S.A. Sept. 24, 1935, No. 26466. Convention date, Dec. 6, 1934. [Class 83 (ii)] In a method of making grids for thermionic valves, separate grid wires 17 are fed in alignment on opposite sides of support wires 23 and are secured by welding or swaging. The grid wires 17 are fed from spools through combs 15 to a mandrel 25, and support wires 23 are fed to grooves in the mandrel. Welding and holding jaws 19 are closed to secure the wires and are retracted and tools 18 are advanced to sever the grid wires between the support wires. The mandrel 25 is expanded by a taper member 30 to shape the grid and is then moved transversely to feed the grid to a conveyer and is then moved axially and transversely and positioned behind the remaining support wire and the cycle of operations repeated.
Patent GB-1332556-A (GB)
Title: Toothpastes
IPC: A61Q11/00
Filed: 1971-04-19
Abstract: 1332556 Toothpaste ALBERTO-CULVER CO 19 April 1971 [24 April 1970] 26471/71 Heading A5B A toothpaste contains (a) at least 50% of an abrasive based on the weight of solids present and (b) at least 20% based on the weight of liquids present of a polyalkylene glycol which is soluble in water or in the liquid ingredients of the composition, has a molecular weight of at least 200 and whose akylene glycol radicals contain 2-4 carbon atoms. The abrasive may be dicalcium phosphate dihydrate, aluminium hydroxide gel, calcium sulphate, calcium pyrophosphate, tricalcium phosphate, calcium carbonate, or insoluble sodium metaphosphate. The polyalkylene glycol may be polyethylene glycol, a mixture of polyethylene glycols of different molecular weights, a diethylene glycol-propylene oxide adduct or a dipropylene glycolpropylene oxide adduct. The composition may also include a humectant, e.g. glycerol, propylene glycol or sorbitol, a surface active agent, e.g. sodium lauryl sulphoacetate, sodium lauryl sulphate, sulphocolaurate, sodium N-lauroyl sarcosinate, sodium coconut fatty acid monoglyceride sulphate, soap or aluminium octoate, a hydrophobic colloid, e.g. gum arabic, ghatti, gum karaya, gum tragacanth, Irish moss, sodium alginate, bentonite, veegum, methyl cellulose or sodium carboxymethylcellulose, perfume, colouring, an anti-decay agent, an enzyme, a sweetener, e.g. sodium saccharin, flavouring, methyl paraben, propyl paraben and/or a carboxyvinyl polymer.
Patent GB-970404-A (GB)
Title: A new or improved method of and apparatus for packaging goods
Inventor: FRENCH ROBERT BRIAN
IPC: B65B9/02
Filed: 1961-07-21
Abstract: 970,404. Seaming non-metallic sheet material. C. F. TAYLOR (UNITY DESIGNS) Ltd. Sept. 26, 1962 [July 21, 1961; Sept. 26, 1961], Nos. 26571/61 and 34487/61. Heading B5K. [Also in Division B8] A method of packaging comprises encircling the goods in heat-sealable and heat-shrinkable film, arranging for the film to project beyond opposite ends of the goods and applying heat to the film or parts thereof to shrink it on to the goods. In the described embodiment two webs of film 4, 7, are passed over and in front of rollers 36, 35, and 45, 44, respectively, whence members 18, 20, carrying a low voltage, high current heating wire 31 and an insulating pad 33, respectively, are brought together to seal the two webs and cut off the surplus so as to form a continuous web. The article to be packaged is next pushed from a table 40 to another table 41 carrying the film with it. The members 18, 20 are then brought together again to effect the sealing and also cut the film so that the newly formed package is separated from the rest of the film and the film is again in the position as shown in Fig. 5C, ready to receive the next article. The operation of the members is as shown in Fig. 1. Vertical plates 9 at each side of the apparatus have slots 10, 11 in which the members 18, 20 can move. U-shaped rods 15, 16 are connected to each end of the members 18, 20, respectively, and pass through the ends of two rods 14, situated at each side of the apparatus and mounted as shown to be rockable on a rod 13. A tension spring 21, connected between the bottom portion of rod 15 and the frame of the apparatus, ensures that the members 18, 20 are, in their normal position, apart; their moving together being effected by pressure on the bottom portion of the rod 15. The apparatus may also be as shown in Fig. 6 where arms 18<SP>1</SP> with subsidiary heating wires are also provided to effect the sealing of the protruding parts of the webs on opposite sides of the article. Specifications 970,405 and 970,406 are referred to.
Patent GB-1169959-A (GB)
Title: Improvements in or relating to Extrusion Machines
Inventor: KALBFLEISCH HENDRIK JOHAN
IPC: B29C48/355
Filed: 1967-06-08
Abstract: 1,169,959. Draw-off means for extruders. ALGEMENE KUNSTZIJDE UNIE N.V. 8 June, 1967 [8 June, 1966], No. 26574/67. Heading B5A. A machine for drawing off elongated thermoplastic articles from an extruder comprises a series of pairs of rollers, the axes of each pair of rollers defining a plane perpendicular to the path of the articles, and in which the rollers are all mounted for adjustment towards and away from the path for adjusting the pass, at least one roller of each pair in the series being driven at the same speed. As shown, one series comprises parallel upper rollers 24, 26 opposed to lower rollers 25, 27 respectively, carried on shafts 10, 11. Each shaft is displaceable vertically to adjust the pass, the lower one by a hand wheel and sprocket system 51, 53 and the upper one by hydraulic pumps 55, 56. Each upper shaft is driven by a worm-wheel 32 and worm (not shown) and a shaft 33 which is rotated by and telescopes into a shaft 34 driven by a common, horizontal shaft by bevel gears 35 so that the shaft 10 is driven in any vertical position of a supporting cross-head 20 therefor. The shaft 11 is driven in like manner through members 36, 39, the members 39 comprising two lower longitudinally extending shafts which are driven centrally. The rollers are removably mounted on the shafts. In another parallel series an article of large cross-section 30 or a board 31 may be drawn off.
Patent GB-601916-A (GB)
Title: Improvements in or relating to fire extinguishers
IPC: A62C13/00
Filed: 1945-10-11
Abstract: 601,916. Fire extinguishers. MATHER & PLATT, Ltd., and BARCLAY, S. F. Oct. 11, 1945, No. 26622. [Class 47 (ii)] [Also in Group XXVIII] The gas bottle of a pressure reservoir fire extinguisher is encased in a sheath which bulges or bursts if the gas leaks, and hence indicates the leakage. The sheath, preferably made of copper, is formed in two cylindrical parts, each having a closed end, and one fitting inside the other. The parts are passed over the gas bottle so that one open end overlaps the other and are soldered together. The ends of the cylinders are previously thinned so that the bulge or burst takes place at the end. The sheath also prevents the corrosion of the steel gas bottle by the water in the reservoir, and is easily pierced by the piercer of the extinguisher.
Patent GB-1316652-A (GB)
Title: Microphones and other transducers
IPC: H04R19/00
Filed: 1970-06-02
Abstract: 1316652 Semi-conductor devices MARCONI CO Ltd 2 June 1970 [12 June 1969 14 May 1970] 26669/70 HeadingHlK [Also in Division H4] A microphone or other capacitor transducer comprises a body 1 of semi-conductor material of high resistivity, e.g. a monocrystalline layer of silicon. An area 2 in one surface side is heavily doped. An oxide (e.g. electret) film 4 extends over and contacts part of the outer surface of the heavily doped area 2. An insulating layer 3 also extends over the surface side of the body 1. A metal foil 5 is disposed over the oxide film 4 and extends over an adjacent area of the insulating layer 3 to enclose an air space 6 between the foil 5 and film 4. Foil 5 acts as a diaphragm. Connections are provided to the foil 5 and, via further metal foil, to the heavily doped layer 2. As described, the insulating layer 3 is silicon dioxide, thermally grown. The oxide film 4 is also silicon dioxide. It may be thermally grown but alternatively is anodically grown so as to act as an electret. The various layers may be produced by methods involving selective etching. The metal foil 5 is produced by the "lost lacquer" technique or by evaporation. The transducer is an integrated circuit device, an amplifier being functionally and physically integrated with the transducer. Reference has been directed by the Comptroller to Specifccation 1,036,837.
Patent GB-1466219-A (GB)
Title: Treatment of skins and hides
IPC: C14C15/00
Filed: 1975-06-24
Abstract: 1466219 Treatment of skins and hides SOC ANON VELDAIM 24 June 1975 [24 June 1974] 26694/75 Heading C6C A method of handling hides and skins for drying and for impregnation by application at various working stations, comprises the steps of tentering a skin or skins, hide or hides on a frame moving the frame from one working station to another to present the or all of the skins or hides on a frame to each working station whereby all operations on the or each skin or hide are performed between a first tentering of the skin or hide and its detentering. A tentering frame 5 comprises a cylindrical frame having a perforate surface and being mounted for rotation about its lengthwise extending axis. An installation for handling hides and skins for drying and impregnation by application  at various working stations comprises at least one tentering station 1, one impregnation station 2, and one drying station.3, 4 the various stations being inter-connected by a guide rail network 6, 7 along which the tentering frames are movable.
Patent GB-1454250-A (GB)
Title: Paraffin emulsion for timber preservation
IPC: B27K3/34
Filed: 1975-06-24
Abstract: 1454250 A paraffin emulsion for timber preservation DEUTSCHE TEXACO AG 24 June 1975 [1 July 1974] 26805/75 Heading A5E A paraffin-in-water emulsion comprises an insecticide and/or fungicide and, as an emulsifier system, an alkanolamine salt of montanic acid and a ethoxylated C 10 -C 20  fatty alcohol containing from 8-12 ethoxy groups in the molecule. Preferred insecticides are malathion and dimethoate, and the preferred fungicide is tributyl tin borate. The emulsion provides protection for timber by means of a complete or uninterrupted paraffin film which can be easily removed by re-emulsification when required.