baber/WOPTO huggingface dataset:
Patent GB-1077841-A (GB)
Title: Improvements in or relating to memory devices
Inventor: COOKE REGINALD BENJAMIN WILLIA
IPC: H01G9/00
Filed: 1964-05-29
Abstract: 1,077,841. Electrolytic devices. STANDARD TELEPHONES & CABLES Ltd. May 28, 1965 [May 29, 1964], No. 22298/64. Heading H3B. [Also in Division G1] A resistive layer on the inside of a sealed tube containing two electrodes separated by electrolyte is progressively short circuited by growth of one electrode at the expense of the other during electrolysis. A coulometer constructed in this way is designed for use as a memory unit the resistance between two terminals connected to the layer being a measure of the integrated current flow through the electrolyte. Fig. 1 (not shown) depicts such a unit in which the electrodes (3, 4) are of mercury, the electrolyte a mercury salt, e.g. nitrate, the tube of glass and the resistive layer tin oxide. The tube may however be plastic or of a resistive material such as carbon, in which case a separately deposited resistive layer is unnecessary. Where the resistive material is deposited on the inside of the tube it is convenient to make the tube in two longitudinal halves one of which is coated before the halves are fused together. Both halves may be semicylindrical, or the coated half may be plane (as in Fig. 3, not shown). In the latter case, the layer may be of non-uniform width and a plurality of the units may be made together by fixing a semicylindrical half tube over each of a plurality of coated regions on a common plane surface (Fig. 4, not shown).
Patent GB-1168193-A (GB)
Title: Mercaptoles and Hypocholesterolemic Compositions containing them
Inventor: BARNHART JAMES WILLIAM
IPC: A61K31/10
Filed: 1968-05-10
Abstract: 1,168,193. Hypacholesterolemic compositions. DOW CHEMICAL CO. 10 May, 1968 [11 May, 1967], No. 22335/68. Heading A5B. [Also in Division C2] Hypocholesterolemic compositions comprise a pharmaceutical carrier and as active ingredient at least one compound of the formula (wherein A and B are each a C 4-6  tert.alkyl group in a position meta or para to E and D respectively; E and D are each CH 3 , C 2 H 5 , C 3 H 7  or C 4 H 9 , and A+E contains at most 8 carbon atoms, as does B+D; R 1  is CH 3 , CH 2 H 5 , C 3 H 7  or C 4 H 9 ; and R 2  is CH 3  or C 2 H 5 , and R 1 +R 2  contains at most 5 carbon atoms). The carrier may be a nutritive composition such as a solid or liquid foodstuff containing e.g. vitamins, fats, proteins or carbohydrates; one such composition contains bis (3,5-di-tert.- butyl-4-hydroxyphenyl) butanone mercaptole, bis (3-tert.-butyl-5-ethyl-4-hydroxyphenyl) acetone mercaptole, pyridoxine hydrochloride, ascorbic acid and nicotinic acid in addition to soluble casein. The compositions may also contain sweetening and flavouring agents, preservatives, anti-oxidants and colouring materials.
Patent GB-1329033-A (GB)
Title: Interpolymer
IPC: C08F8/00
Filed: 1971-04-19
Abstract: 1329033 Maleic anhydride/vinyl ether copolymer derivatives GAF CORP 19 April 1971 [24 Feb 1970] 22355/71 Heading C3P A water-soluble interpolymer comprises units of the general Formulµ I and II wherein Y represents halogen, hydrogen, alkyl having less than 6 carbon atoms or phenyl; X represents a single chemical bond, oxygen, sulphur, carboxy or carbonamido; R 1  represents the same or different hydrocarbon radicals containing from 6 to 36 carbon atoms in different units, the hydrocarbon radicals being selected from a normal chain alkyl, a branched chain alkyl, cycloalkyl and alkylaryl radicals; R 2  represents the same or different radicals in different units selected from alkyl having less than 6 carbon atoms and in which q represents 1, 2 or 3 and m represents 0, 1, 2 or 3 and A and B each independently represent a radical selected from wherein R 3  is hydrogen or an alkyl having 1 or 2 carbon atoms; R 4  is a normal chain alkylene having less than 6 carbon atoms, a branched chain alkylene, a cycloalkylene or a heterocyclic group containing 2 to 6 carbon atoms; and R 5  and R 6  are individually alkyl groups containing from 1 to 4 carbon atoms, alkoxy alkyl radicals containing from 2 to 6 carbon atoms or when taken together with the N atom, a heterocyclic ring containing from 2 to 5 carbon atoms. In the examples maleic anhydride, n-octadecyl, n-hexadecyl and methyl vinyl ethers are copolymerized in the presence of benzene and azobisisobutyronitrile. A copolymer of maleic anhydride and methyl, hexadecyl, octadecyl and tetradecyl vinyl ethers is reacted with dimethylaminoethanol and dimethylaminopropylamine and thickened hydrochloric acid solutions prepared.
Patent GB-418931-A (GB)
Title: Improvements relating to valves for controlling fluids
IPC: F16K3/14
Filed: 1933-08-10
Abstract: 418,931. Valves. AUDLEY ENGINEERING CO., Ltd., Avenue Road, and LEACH, K. M., Brookfield House, both in Newport, Shropshire. Aug. 10, 1933, No. 22363. [Class 135.] In valves of the kind in which the closure member is separated from its seating when the valve is opened, one or more apertures, opening on to the contacting surfaces of the closure member or its seating, lead to a chamber, for lubricant or the like, formed in the closure member or valve casing, the apertures having valves which project beyond the surfaces containing the apertures so that the valves are closed when the closure member is in open position, but are opened when the closure member is in closed position. As shown, holes in seating rings b are controlled by spring-pressed valves k and communicate through ducts g and non-return valves s to a chamber n. The latter contains a lubricating, sealing or cleansing substance, and a pair of spring-urged plungers m. The valve closure member a holds the valves k open when it is in the closed position so that the substance in the chamber n is forced through the holes j. The fluid controlled by the valve may also be admitted behind the plungers m. The closure member a is in two parts each guided by a projection engaging a guide 5 in the valve casing. Between the parts are four balls or rollers y, the upper one bearing on a plate 2 and the lower one bearing on a member 3 loosely carried by the member a. A member x projects upwardly from the bottom of the casing. When the closure member a is moved into closed position, the projection x engages the member 3 so that the balls or rollers y move the two parts of the closure member into wedging contact with the seating surfaces. In a modification, the plunger m is provided in the closure member and the actuating rod c is hollow and is provided with a screwed hollow plug.
Patent GB-424569-A (GB)
Title: Improvements in or relating to the manufacture and production of lubricating oils
IPC: C10G21/14
Filed: 1933-08-11
Abstract: High-molecular oils obtained by polymerizing or condensing paraffin or other mineral wax, e.g. as described in Specification 349,071, 407,379, or 410,833, are freed from unchanged raw material and lower molecular products and so improved as lubricants and as agents lowering the setting point of other lubricants, by extraction with hydrocarbons having a critical temperature below 250 DEG  C., the extraction taking place above 25 DEG  C., but below the critical temperature of the hydrocarbon used. Usually 1--10 volumes of liquefied normally gaseous hydrocarbons such as propane, ethane, or mixtures thereof are used, suitable temperatures being 25--35 DEG  C. for ethane and 90--95 DEG  C. for propane.  The pressure may be increased by other gases.  In examples: (1) "voltolized" ceresine is stirred for 5 minutes at 90--95 DEG  C. with 3--4 vol. of liquid propane, the mixture settled, and the oil run off.  The setting point of a German machine oil is lowered from 0--25 DEG  C. by addition of 0,1 per cent of the product; (2) a mixture of chlorinated ceresine with 15 per cent of naphthalene is condensed in presence of aluminium chloride as catalyst and saturated illuminating oil as diluent and allowed to cool and settle; the top layer is removed, freed from diluent by distillation, and extracted at 90--95 DEG  C. with 4 vol. of liquid propane in countercurrent.  0,1 per cent of the resulting oil lowers the setting point of a machine oil from 0--27 DEG  C. Improving the crude condensation products by removing unchanged wax by dilution and chilling, or by vacuum distillation with steam at 270--280--310 DEG  C., and Specification 402,253 also are referred to.  Reference has been directed by the Comptroller to Specification 407,379.
Patent GB-664217-A (GB)
Title: Improvements in hose finishing machines
IPC: D06C5/00
Filed: 1949-08-30
Abstract: <PICT:0664217/IV (c)/1> <PICT:0664217/IV (c)/2> <PICT:0664217/IV (c)/3> A continuous hose finishing machine comprises an endless conveyer 10 carrying forms 11 for the reception of the stockings and a pair of spray-boxes 13 or other means for thoroughly impregnating the stockings spaced along the conveyer run, the conveyer being p adapted to take the forms through a finishing chamber 15 to condition any stockings thereon after they leave each spray-box or the like, and before they reach the other spray-box or the like. A common finishing chamber 50 may be provided embracing both straight runs of the conveyer.  The stockings are conditioned within the chamber by the circulation of hot air.
Patent GB-296456-A (GB)
Title: Improvements in attachments for taking stereoscopic pictures with ordinary cameras
IPC: G03B35/10
Filed: 1927-06-13
Abstract: 296,456. Judge. A. W. June 13, 1927. Cameras, stereoscopic. - In attachments to cameras which enable a pair of pictures giving stereoscopic relief to be obtained with a single lens and which are fitted with two pairs of reflectors h, k by which the incident rays are directed to the lens, one reflector k of each pair is mounted so as to pivot about its centre on a vertical axis m. The reflectors are carried in metal frames, lugs on which constitute the hinges. The two reflectors may be connected together by toothed gearing or by levers so that simultaneous adjustment may be effected.
Patent GB-1430147-A (GB)
Title: Process for the production of synthetic wollastonite
IPC: C04B35/22
Filed: 1973-05-11
Abstract: 1430147 Synthetic wollastonite RHEINISCHE KALKSTEINWERKE GmbH 11 May 1973 [12 May 1972 2 Aug 1972] 22522/73 Addition to 1296409 Heading C1A Synthetic wollastonite is produced by roasting a lime-containing material, 40% of which is CaO, with a silica containing material in a rotary kiln at above 1400‹ C., SiO 2  being in a 5-10% excess. At least 90% of the mixture has a particle size less than 0À09 mm. The total amount of Al 2 O 3  and Fe 2 O 3  impurities are less than 1% and the alkali metal oxide impurities are less than 0À1%. No flux or compacting is required. The CaO-containing material may be quick-lime or quick-lime and limestone and the SiO 2  material ground quartz sand.
Patent GB-674986-A (GB)
Title: Improvements in pneumatic cores for use in the moulding of hollow concrete articles
IPC: B28B7/32
Filed: 1949-08-31
Abstract: 674,986. Inflatable cores for forming hollow concrete articles. MATHEWS, C. B. and AMBROSE, J. G. Nov. 24, 1950 [Aug. 31, 1949; Oct. 18, 1950], Nos. 22584/49 and 25387/50. Class 87(ii) The core includes top and bottom metal plates 1, 2 having grooves or slots 3 at their longitudinal edges, the slots being designed to receive and retain rigid rods 5 carrying flexible panels 4 for closing the longitudinal sides of the core. Other slots 6 retain rigid rods 8 carrying intermediate flexible panels 7 which form chambers A, C for receiving inflatable tubes 9. The middle chamber B also may contain an inflatable tube. The top plate, and perhaps the bottom plate, has hot water passages 10, 11 to facilitate setting of the concrete. The panels 4, 7 may be made of fabric, leather, leather substitute or flexible sheet metal such as brass or non-rusting steel. Specification 582,587 is referred to.
Patent GB-1423116-A (GB)
Title: Purification of titanium tetrachloride
IPC: C01G23/02
Filed: 1974-05-21
Abstract: 1423116 Titanium tetrachloride; purification BAYER AG 21 May 1974 [22 May 1973] 22603/74 Heading C1A Titanium tetrachloride is purified by adding thereto an amine of the general formula R 1 R 2 R 3 N and removing the purified titanium tetrachloride by distillation. In the general formula, R 1  and R 2 , which may be the same or different, represent a hydrogen atom, an alkyl group (preferably containing 1 to 6 carbon atoms), an alkenyl group (preferably containing 2 to 6 carbon atoms), a cycloalkyl group (preferably containing 5 to 7 carbon atoms) or an aryl group, and R 3  represents a cycloalkyl group (preferably containing 5 to 7 carbon atoms) or an aryl group; alternatively, R 3 , together with R 2  and the nitrogen atom, forms a 5- to 7-membered heterocyclic ring containing 4 to 6 methylene groups, in which case R 1  represents a hydrogen atom, an alkyl group (preferably containing 1 to 6 carbon atoms), or an aryl group. If any of R 1 , R 2  and R 3  are a cyclohexyl group or an aryl group, they are preferably substituted at least once, the substituent being suitably chosen from an alkyl group of 1 to 6 carbon atoms, a halogen, an amino group and a hydroxyalkyl group. Preferred amines, which are suitably added in a proportion of 0À1 to 10 wt. per cent (preferably 0À2 to 1À5 wt. per cent) based on the titanium tetrachloride or, where the impurity is a vanadium compound, in the proportion of 0À1 to 5 moles per mole of vanadium compound, are aniline, cyclohexylamine, N,N-dimethylaniline, diphenylamine, 2,3-dimethylaniline, 2,6-dimethylaniline, pyrrolidine and piperidine (the last two being particularly preferred); mixtures of these amines may also be used.
Patent GB-1294067-A (GB)
Title: Anchor
Inventor: MARTIN ALAN
IPC: F16B19/10
Filed: 1971-04-19
Abstract: 1294067 Anchor bolt; screw sockets A MARTIN 19 April 1971 [2 March 1970 28 Jan 1971] 22627/71 Heading F2H An anchor nut or bolt comprises a sleeve 12 frangibly connected at 14, a nut 10 (Fig. 1) or a bolt 81 (Fig. 8) having a head 10<SP>1</SP>, the nut 10 or head 10<SP>1</SP> having a tapered portion whose outer diameter increases in a direction away from the sleeve and whose outer diameter at its end 24 adjacent the sleeve is substantially equal to the sleeve inner diameter, at least one of the sleeve and the nut or head being screw-threaded so that when the nut 10 or head 10<SP>1</SP> is turned relative to the sleeve 12, it is screwed into the sleeve to expand the latter, the nut or head being retained in the sleeve. As shown, the tapered portion of the nut or bolt head is externally screw-threaded at 28, the sleeve having an internal screw-thread 16 of the same pitch, these threads being of opposite hand to the internal thread 36 of the nut or the bolt thread. The end portion 32 of the nut 10 or bolt head 10<SP>1</SP> is substantially cylindrical and has a thread 34 of different pitch from the thread 28 so that when the nut or bolt head has been screwed fully into the sleeve 12 the threads 16, 34 jam to provide a lock against subsequent rotation. The nut may be closed at the end 32 (Fig. 5, not shown). The nut 10 or bolt head 10<SP>1</SP> is screwed into the sleeve by a bit (40) (Figs. 2, 3, 9, not shown) of a tool having an anvil (41) which engages the head 18 of the sleeve to prevent rotation of the latter.
Patent GB-203876-A (GB)
Title: Improvements in appliances for delivering substances in powder form
IPC: A47K5/10
Filed: 1922-08-19
Abstract: 203,876. Reeve, J. T. Aug. 19, 1922. Moving-chamber apparatus for pulverulent materials.-In an appliance for delivering powdered substances, such as soap, of the kind wherein the powder receptacle has a discharge valve at its lower end adapted to be manipulated by upward pressure against a weight, the weight of the powdered substance is utilized to, close the valve or discharge opening. The powder is carried in a container in the form of a lining b vertically movable within the casing a and formed with an opening in the base c with an extension e providing for manipulation. The discharge opening is normally closed by a valve or enlargement on a central rod or stem f fixed to the cover g of the casing and arrangements may be provided for delivering measured quantities of the powder. As shown in Fig. 1, the central stem f is provided with two enlargements f<1>, f<2> co-operating with two enlargements e<1>, e<2> in the tubular extension e, so that on the first upward and downward movement of the receptacle b powder is deposited in the enlargement e', and a second up and down movement is necessary to discharge this past the enlargement f<2>. In the form shown in Fig. 5, a loose conical cap m within the container cuts off a quantity of the powder when the container is raised, this being discharged past the valve enlargement k. In this form a conical extension n on the valve stem normally closes the end of the tubular extension e to exclude damp &c., and also serves to spread the powder. The part e' is preferably detachable to facilitate assemblage. In another arrangement, an elongated enlargement k, Fig. 5, co-operates with a single enlargement e', Fig. 1. Instead of the double conical enlargements f<1>, f<2>, Fig. 1, globular or ellipsoidal enlargements may be provided.
Patent GB-316444-A (GB)
Title: Improvements in and relating to the production of salts of aromatic hydroxyaldehydes
IPC: C07C45/85
Filed: 1928-08-04
Abstract: 316,444. Graesser-Monsanto Chemical Works, Ltd., and Hudson, D. P. Aug. 4, 1928. 3-Alkoxy-4-hydroxybenzaldehydes, particularly vanillin and bourbonal, are isolated, purified or separated by forming the acid salts of the formula (OR)OXO7H4O(OR)OH, where X is an alkali metal and R is an alkyl radical. Thus, the aldehydes may be isolated from solutions by treating an aqueous solution of the normal sodium salt with half of the equivalent amount of mineral acid to form the relatively insoluble acid salt. The aldehyde in solution in a suitable solvent may be extracted with a solution immiscible therewith containing sodium in a form adapted to react with the aldehyde and extract it from the solvent in the form of an acid salt. A dilute solution of a mineral acid is added to a dilute solution of the alkali metal salt of the aldehyde with agitation and in amount calculated to form the acid salt which is separated. Bourbonal may be separated from vanillin by converting the mixture into the acid potassium salts and then removing the acid salt of bourbonal by reason of its lower solubility in alcohol, or into the acid sodium salt and removing the acid salt of bourbonal by virtue of its lower solubility in water. Examples are given of the preparation of the acid sodium salt of bourbonal, the acid potassium salt of vanillin, the extraction of a solution of bourbonal in ether or benzene with caustic soda or sodium carbonate, and the extraction bv an aqueous solution of sodium carbonate of crude bourbonal obtained by ethylation of protocatechuic aldehyde in a suitable solvent immiscible with water.
Patent GB-1182325-A (GB)
Title: Improvements in and relating to Semiconductor devices
IPC: H01L23/522
Filed: 1967-05-16
Abstract: 1,182,325. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 16 May, 1967 [19 May, 1966], No. 22691/67. Heading H1K. One group of parallel conductors in a semiconductor device matrix comprises metal strips H 1 , H 2  &c. applied to an insulating layer on the semi-conductor body carrying the matrix, while the second group V 1 , V 2  &c. crossing the first comprises continuous surface zones 4 of one conductivity type surrounded in the body by zones of the opposite conductivity type. Circuit elements, e.g. transistors such as T 21  are connected to both conductors, e.g. V 1 , H 2 , at certain of the crossing points. Each conductor of the second group, e.g. V 1 , may comprise a single P-type surface strip in an N-type silicon body, the junction between the strip and body being reverse biased. Alternatively the conductor V 1  may, as shown, comprise an N-type strip 4 surrounded by a P-type strip 5, either of the two junctions so formed being reverse biased, and the other junction being shorted. Metal strips 11 may be provided on each strip 4 between the crossing points, to enhance conductivity and to provide a means of contact to the transistor base region. The emitter region is connected to the metal strip H 2  by a conducting branch. The strips 4, 5 may be diffused simultaneously with the emitter and base region of the transistors T 21  &c., boron and phosphorus being used as the P- and N-type dopants, respectively. The collector regions of all the transistors may be constituted by the bulk of the semi-conductor body. A photo-resist etching technique may be used to define the diffusion apertures in the insulating layer, e.g. of silica. The strips H 1 , H 2 , 11 and branch conductors may be of vapour deposited aluminium. As an alternative to diffusion, the conducting strips 4 of the group V 1 , V 2  &c. may be formed in an epitaxially grown layer. The circuit elements may also be diodes, resistors or complete arrangements of components such as flip-flop circuits &c.
Patent GB-1219308-A (GB)
Title: Multistation digital-data message distribution on shared transmission facilities
Inventor: MAUZEY PETER TUCK
IPC: H04L12/403
Filed: 1968-05-14
Abstract: 1,219,308. Digital transmission system. WESTERN ELECTRIC CO. Inc. 14 May, 1968 [19 May, 1967], No. 22783/68. Heading H4P. In a digital transmission system comprising a plurality of out-stations connected to a central station via a common channel, the central station interrogates the out-stations in sequence. Any out-station having a priority message for transmission to the central station indicates this to the central station when interrogated and is then caused to transmit. The identity of any out-station having a non-priority message is noted at the central station, and when all the out-stations have been interrogated and the priority messages transmitted the non-priority messages are transmitted. When an interrogating cycle is to be started a signal is sent to all out-stations to set them to respond to their corresponding interrogating signals. Subsequently the central station emits an interrogating signal and the corresponding out-station returns a signal indicating that it has a priority, a non-priority, or no, message to transmit. If a priority message is to be sent, the central station sends a start signal, derived from the interrogating signal and unique to the particular out-station. All other out-stations are now rendered unresponsive to interrogating signals and the chosen out-station transmits its message. On receipt of the end of message signal the central station starts a new interrogating cycle by interrogating the next out-station. If a non-priority message is to be sent the identity of the out-station is stored and interrogation is continued until there has been a complete cycle during which no priority message has been transmitted. Because the identity of the last out-station to transmit a message is stored at the central station the end of an interrogating cycle can be determined by comparing the present interrogating signal with the stored identity. The interrogating signal generator is now stepped until it gives a signal corresponding to the out-station which has the non- priority message, whereupon the start signal is sent to that out-station The message is now transmitted, and the subsequent end of message signal starts a new interrogating cycle. If no reply is received from an interrogated out-station, the central station interrogates the next out-station after a pre-set time has elapsed.