baber/WOPTO huggingface dataset:
Patent GB-686254-A (GB)
Title: Improvements in or relating to the manufacture of pentaerythritols
Inventor: CALDWELL WALTER ANDERSON
IPC: C07C31/24
Filed: 1950-04-11
Abstract: Pentaerythritols are made by condensing formaldehyde and acetaldehyde in aqueous solution with a strong alkaline earth base and precipitating and mechanically removing at the end of the condensation part of the alkaline earth metals present in solution, passing the resultant liquor through a bed of cation-exchange material to replace the residual alkaline earth ions by hydrogen ions, and eventually subjecting the thus treated liquor to flash evaporation.  "Pentaerythritols" is defined as pentaerythritol in admixture with dipentaerythritol and other polypentaerythritols that accompany it as by-products of the above condensation.  Lime is the specified base.  Flash evaporation may be effected on hot rolls in vacuo or by spraying into a non-oxidizing gas.  Preferably the liquor is concentrated before evaporation.  A crop of pentaerythritol may be recovered before the evaporation.  Preferably before cation exchange treatment liquor from the condensation is treated with sulphuric acid to precipitate calcium ions which are mechanically removed as the sulphate then with a barium salt, e.g. the carbonate, in an equivalent amount to the excess sulphate present and barium sulphate removed.  After cation - exchange treatment any formic acid present may be neutralized with ammonia before concentration and flashing or the liquor may be passed through anion exchange material to reduce or remove residual sulphuric and formic acid. Preferably cation exchange treatment is effected when the liquor is dilute and before pentaerythritols are recovered.  Preferably the condensation is effected so that no rise in temperature occurs towards the end of the addition of the reagents. "Zeo-carb" 215 (Registered Trade Mark) and Deacidite E are specified cation and anion exchange materials respectively.  On washing the pentaerythritols with cold water they are obtained substantially free from syrupy formaldehyde products. In an example liquor from the condensation is treated with formic acid to dissolve excess lime, steam distilled to recover formaldehyde, sulphuric acid added and calcium sulphate filtered off, barium carbonate added and barium sulphate removed, the filtrate run through "Zeo-carb" 215 and the liquor concentrated to 1/4 of its volume and dried by spray drying into air.
Patent GB-642242-A (GB)
Title: Improvements in means for recording and reproducing the moves in a game of chess or the like
IPC: A63F3/02
Filed: 1946-03-22
Abstract: 642,242. Chess boards. SIMUNEK, J. K., and SIMUNEK, J. J. March 22, 1946, No. 8948. Convention date, May 26, 1944. [Class 132 (ii)] A chess-board for recording the moves in a game of chess and subsequently reproducing them comprises a board having an aperture in each square, a record sheet underneath the board on which marks can be made through the apertures and mechanism for moving the sheet or the board after each move so that the previously made marks are not visible. An embodiment according to Fig. 2 comprises a shallow box having a chess-board marked on its top panel, under which is a record sheet C guided between two rollers 1 and 5 so as to move obliquely with respect to the board, the movement being effected by turning a knob on the end of a rotatable shaft 2 carrying the roller 1 or by pressing a lever 9 secured to a shaft to which is connected a pawl 7 which advances a ratchet wheel 6 secured to the shaft 2. The roller 1 is held against the roller 5 by the action of springs on the shaft 2 which can be depressed in order to insert a record sheet. In a modification, Fig. 5, the record sheet is only slightly larger than the chess-board and their relative movement is twodimensional within the limits of a single square. The sheet D is fixed to a base plate E having guides 11, each equal in area to one square and having a number of parallel grooves 13 in which move members 12 projecting downwards from a chess-board panel F. The members 12 move first along one marginal groove 13, the chess-board panel being displaced after each move sufficiently to conceal the marks made. On reaching the end of the groove the member 12 is shifted back to the beginning of the second groove where the movement is repeated, so that there is produced on the record sheet, beneath each square, a record which is the same size as the square itself. In another modification (Figs. 6-10, not shown) movement similar to that just described takes place but the record sheet is moved and the chessboard panel remains still. Mechanism is provided which enables the record sheet to be moved the exact amount required to conceal the previous marks and automatically moves it within the limits of the area of one square. In using the apparatus marks are made on the record sheet in the square on which stands the piece to be moved and in the square to which it is to be moved, and the record sheet is then advanced. On inserting the record sheet to reproduce a game, the two markings visible at any stage indicate the next piece to be moved and the square it is to move to. Holes may be made in the record sheet instead of marks, and for reproduction sixty-four light contacts pressing upwards may be provided underneath the chess-board. These will only penetrate upwards in places where holes have been made and will light lamps, beneath a transparent board, at the squares from and to which a piece is to be moved.
Patent GB-548442-A (GB)
Title: Improvements in and relating to machines for spinning metals
IPC: F21V17/10
Filed: 1941-07-16
Abstract: 548,442. Spinning reflectors. BRITISH THOMSON-HOUSTON CO., Ltd. July 16,1941, No. 8987. Convention date, July 16, 1940. [Classes 83 (ii) and 83 (iv)] A machine for spinning a reflector 48 about a globe 15 or the like comprises means for rotating these parts and spaced spinning tools 65, 66, 67, with means for moving them simultaneously to operate on the work. The assembled parts 15, 48 are placed on a support 45, 46, 47, which can be rotated by a shaft 44, clutch 31 gearing 27, and motor 25, and clamped by a spring-pressed pad 50, carried by a spindle 51, which can be raised by a handle 56 and swung aside by an arm 53. The motor is then started by a switch 18 and the clutch 31 closed by a pedal 12, in which position it is held by a release pedal 13. The tools 65, 66, 67 are then moved inwardly, by moving down a handle 14 which acts through a ring 82, links 80 levers 76, and spring-returned slides 72, to spin the metal into a groove 63, Fig. 4, between the ribs 61, 62 on the globe. A cutter 100 may then be operated to trim the edge of the reflector and a roller 90 be moved in to spin said edge over the rib 61. The handle 14 is then moved up whereby extensions 88 of the links 80 engage and lift the work so that it can be removed. A guard 16, with a movable section 17, and a mirror 94 to facilitate observation may be provided.
Patent GB-1146775-A (GB)
Title: A screw conveyor
Inventor: NONNENMACHER FRIEDRICH KARL
IPC: B29C48/515
Filed: 1967-02-24
Abstract: 1,146,775. Conveyer screws. METALLGESELLSCHAFT A.G., and F. THIES, [trading as B. THIES SPEZIALMASCHINENFABRIK]. 24 Feb., 1967 [25 Feb., 1966], No. 9026/67. Heading B8A. [Also in Divisions B1 F1 and F4] Screw conveyers 3 and 4 are cleaned respectively by coils 5 and 6 mounted on shafts 2. The conveyers and the coils may be hollow to carry a high temperature medium. Additionally, the coils 5, 6 may carry scraper elements.
Patent GB-416939-A (GB)
Title: Improvements in or relating to the manufacture of sulphuric acid esters of leuco anthraquinone azines
IPC: C09B9/02
Filed: 1933-03-25
Abstract: Acid sulphuric esters of leuco-anthraquinoneazines are prepared by reacting a leuco sulphuric acid ester of b -aminoanthraquinone or of a b -acylaminoanthraquinone or a substitution product of these compounds containing a free a -position to the amino group, with lead dioxide in an alkaline medium, care being taken that the reaction does not become acid during the reaction.  Preferably, at least one molecular proportion of lead dioxide is employed to each molecular proportion of starting material, the reaction being generally effected at 50--100 DEG  C.; alkalinity is preserved by addition of inorganic or organic bases such as alkali metal or alkaline earth metal hydroxides, sodium or potassium carbonates, ammonia, alkali metal or ammonium formates, acetates propionates, or oxalates, trisodium phosphate, dimethylaniline in aqueous or alcoholic or other organic media.  The b -aminoanthraquinone may be substituted by halogen, alkyl, alkoxy, carboxylic or sulphonic acid groups, or aroyl groups (such compounds are prepared by reacting b -aminoanthraquinone-carboxylic acid chlorides with benzenes, chlorbenzenes, anisol &c. in presence of aluminium chloride) or sulphonamido groups (such compounds are prepared from b -aminoanthraquinone-sulphochlorides with aliphatic or aromatic primary or secondary amines); compounds having ring systems condensed with the anthraquinone nucleus (3-amino-1,2-benzanthraquinone) are also included.  The b -amino group may be acylated, for example, by formic, acetic, propionic, benzoic, chlorbenzoic, or naphthoic acids or may be present as a urethane or urea compound, alkali or alkaline earth metal hydroxides being preferably employed as alkaline agents in these cases.  The products are probably the tetrasulphuric acid esters of leuco-anthraquinoneazines.  In examples is described the oxidation of the following:--b -amino-leuco-anthraquinone - 9,10 - disulphuric acid ester, 3 - chloro - 2 - acetylamino - leuco - anthraquinone-9,10-disulphuric acid ester, the leuco sulphuric acid ester of 2-acetylaminoanthraquinone-3-carboxylic acid and of 2 - amino - 3 - methoxyanthraquinone; in the case of the last three acid oxidation of the resulting products is also described. Specifications 272,924, 334,902, 338,891, [all in Class 2 (iii)], 371,420, and 394,887 are referred to.
Patent GB-101285-A (GB)
Title: Improvements in the Treatment of Nickel Ores.
Inventor: EUSTIS FREDERIC AUGUSTUS
IPC: C22B23/00
Filed: 1916-06-28
Abstract: 101,285. Eustis, F. A. Aug. 24, 1915, [Convention date]. Manganese and nickel sulphates, carbonates, and oxides.-Relates to the treatment of nickel ores containing other metals, such as iron, manganese, aluminium, and chromium, particularly for the recovery of the nickel, or of the nickel, aluminium, and manganese. The ore is roasted with a small proportion of sulphur-bearing material preferably at about 460‹ C. for about 4 hours, or at about 500‹ C. for about one-quarter to one-half an hour, or is moistened with sulphuric acid and roasted at about 500‹ C. for a few hours, whereby a product is obtained containing a relatively large amount of soluble nickel and a relativelv small amount of soluble iron. The product is leached, preferably with hot dilute sulphuric acid or with a mixture of dilute sulphuric and hydrochloric acids, and the resulting solution is treated with a base, preferably with limestone contained in a revolving trommel immersed in the bath. When the acid is neutralized, the solution is treated in a separate vessel with fresh base to precipitate the alumina, and if desired, in a further vessel to precipitate the iron. The solution after suitable concentration may be electrolyzed; or the nickel may be precipitated in a separate vessel, preferably by soda-ash, the precipitate being redissolved and electrolyzed, manganese, if present, being obtained at the anode as dioxide.
Patent GB-1040951-A (GB)
Title: Suspension devices for suspending mine or other machinery
IPC: B65G21/04
Filed: 1963-03-07
Abstract: 1,040,951. Conveyers. WESTINGHOUSE AIR BRAKE CO. March 7, 1963 [April 4, 1962], No. 9125/63. Heading B8A. [Also in Division E2] Mine machinery is suspended from the roof by a device providing vertical and horizontal adjustments. In Fig. 1 a rope 8 of a rope sideframe conveyer is held by a clamp 21 suspended by a chain 19 passing through a keyhole slot 18 in a hanger 16 sliding on a flange 13 attached to a plate 11 secured to the roof by a bolt 14 providing angular adjustment. Vertical adjustment is by shortening the chain 19; horizontal adjustment by sliding the hanger 16 along the flange 13 and locking in position by a clamp screw 25. Other embodiments are shown in Figs. 6 to 9, nuts and bolts 70, 81, 91 being utilized in the last three embodiments.
Patent GB-1492726-A (GB)
Title: Vehicles having outrigger beams
IPC: B66C23/78
Filed: 1976-03-08
Abstract: 1492726 Vehicle outrigger beams HARNISCHFEGER CORP 8 March 1976 [17 March 1975] 09136/76 Heading B7J A vehicle is provided with outrigger beams pivotally mounted on the vehicle frame in criss-cross fashion, spacer pads being provided between the frame and beams and between the beams themselves so as to maintain accurate clearance and provide sliding surfaces for the beams. The outrigger beams are provided with locking means for securing them in their operative positions, the locking arrangement forming the subject of Specification 1,492,727. The outrigger beam assembly consists of telescopic members 13, 15 pivotably connected at their inner ends to the vehicle frame by swinging links 19. The outrigger beams are moved in a vertical plane by hydraulic motors 12 attached to yokes 23 embracing the outer telescopic members 13. The inner telescopic members 15 are extended by hydraulic motors 17, each member 15 carrying a ground engaging foot 35 pivotally mounted by means of pins 37, 39. Spacer pads 53, 55 are provided between extensions 51 of the vehicle frame and the outer telescopic members 13, and between cooperating outer telescopic members 13, respectively. Each outer telescopic member is provided with a safety locking arrangement 14, 24 to prevent collapse of the outrigger beam assembly should any of the motors 12 fail. Each locking device comprises a pawl 24 pivoted by a pneumatic control 42 and a rack 14 vertically movable in guides 20 on the vehicle frame. In use, the beam 10 is moved to its operative position by motor 12, the pawl 24 pivoted to release the rack which falls under gravity to bring head 16 into engagement with the beam, and the pawl returned to engage the rack as shown in Fig. 10 and lock the beam in its operative position.
Patent GB-1300723-A (GB)
Title: Method of and tool for the forming of rotationally symmetrical workpieces
Inventor: MOCKEL JOHANNES
IPC: B21H1/18
Filed: 1970-02-25
Abstract: 1300723 Transverse rolling KOMBINAT UMFORMTECHNIK VEB 25 Feb 1970 9156/70 Heading B3M To form a rotationally symmetrical elongated workpiece from a blank of square or quadrangular cross section, the blank is rolled in a transverse rolling machine to a circular crosssection before being rolled to its final crosssection. The machine includes a pair of tools A between which a workpiece is rolled, the tools being associated with rolls or jaws. Each tool has transverse undulations which co-operate with the edges of the blank. A wedge C may be provided on each tool in order to modify the size of the circular cross-section produced. Spot welds or half-round rivet heads may be provided on the tools to assist in gripping a blank during rolling.
Patent GB-126829-A (GB)
Title: Improvements in Pneumatic Trimming Apparatus for use with Grain and like Elevators.
IPC: B65G69/00
Filed: 1918-06-04
Abstract: 126,829. Simon, Ltd., H., and Kininmonth, C. P. June 4, 1918. Pneumatic elevators.-A pneumatic trimming apparatus for use with grain &c. elevators comprises a receiver e provided with one or more feed pipes f and a discharge valve g which closes under a partial vacuum, and means for alternately creating a partial vacuum in the receiver and feed pipes to induce grain &c. into the receiver and for breaking the partial vacuum to cause the discharge of the grain &c. from the receiver by gravity. Two similar receivers e, e<1> are connected by pipes h, h<1> to the casing j, Fig. 4, of a valve k which is rotated continuously or intermittingly by a motor n. The valve k has portsk<1>, k<2> which connect the pipes h, h<1> to pipes j<1>, j<2> leading to the atmosphere and to a rotary exhauster m, respectively.
Patent GB-577278-A (GB)
Title: Improvements in or relating to electron discharge apparatus for operation at ultra-high frequencies
IPC: H01J25/12
Filed: 1940-05-24
Abstract: 577,278. Electron oscillators and multipliers. STANDARD TELEPHONES & CABLES, Ltd., FREMLIN, J. H., and HALL, R. N. May 24, 1940, No. 9189. [Class 39 (i)] In an electron oscillator wherein a stream of electrons is bunched into groups which excite a resonator R2, primary groups impinge on a secondary emitter A so that groups of secondaries pass through the resonator ; the electrode A may be a grid or a thin film. The collector electrode B is insulated from and is at a higher potential than the resonator R2 ; the two are connected by a condenser. The primary stream may be grouped by a second resonator R1 or by other means ; coaxial conductor resonators as described in Specification 537,490 may be used. The two resonators may be coupled so that the device acts as an oscillation generator or it may be used as an amplifier.
Patent GB-787617-A (GB)
Title: Improvements in or relating to units for mounting on a panel
IPC: B61L25/08
Filed: 1956-03-23
Abstract: 787,617. Supporting lamps. TELEFONAKTIEBOLAGET L. M. ERICSSON. March 23, 1956 [March 23, 1955], No. 9203/56. Class 75(3) A unit for mounting an electric lamp 3 or other circuit element in a circular hole 11 in a panel 1 comprises a sleeve 2 receiving the lamp or element and adapted to be inserted into the hole so that it projects normally from one side of the panel, the inserted end having an axial slot permitting resilient compression to reduce the diameter of an annular rib 23 thereon so that the rib may enter the hole and grip the wall thereof and an annular shoulder 25 of greater diameter than the hole being provided on the sleeve at a distance from the rib 23 smaller than the thickness of the panel and being adapted to bear against the side of the panel. The forward side of the rib 23 is rounded to facilitate insertion into the hole and its rear side is straight. The sleeve is metallic and a lampholder 4 fits tightly into: th seleeve. A coloured lens 5 is located in the sleeve in front of the lamp 3. A coloured plastic ring is fitted around the projecting end of the sleeve.
Patent GB-145904-A (GB)
Title: Improvements in fishing-reels
IPC: A01K89/015
Filed: 1919-04-11
Abstract: 145,904. Hardy, J. J., Hardy, L. R., and Hardy Bros. April 11, 1919. Reels.-Certain parts of a fishing-reel are designed so as to be readily interchangeable with spare parts of a like character. A detent A, such as described in Specification 24245/10, is mounted on a disk-headed stud B which engages in an open-ended slot a formed in, and inclined away from the back of, said detent. A spring C is mounted on a stud c and controlled by a regulator D having an arm with a ledge d beneath which the spring is retained in operative position.
Patent GB-560286-A (GB)
Title: Corrosion protective composition applicable in some cases as lubricants
IPC: C09D5/08
Filed: 1942-07-06
Abstract: 560,286. Corrosion-preventing compositions ; lubricants. SHELL DEVELOPMENT CO. July 6, 1942, No. 9341. Convention date, July 21, 1941. [Classes 91 and 95] A corrosion-inhibiting composition applicable. in some cases as a lubricant comprises a non- gaseous hydrocarbon normally free from carboxylic acids containing a small amount of a corrosion-inhibiting acid consisting of polycarboxylic acids and hydroxy. aromatic carboxylic acids having at least 12,carbon atoms in the molecule together with a small amount of an auxiliary oil-soluble, water-insoluble compound selected from the group of monocarboxylic acids and esters of said acids with monohydric alcohols. Among the acids of the first group, specified are polymerised and hydrogenated lauric, palmitic, stearic, oleic, etc. acids, unsaturated fatty acids polymerised with, e.g. boron trifluoride and subsequently hydrogenated, alkyl phthalic acids, alkylated, naphthalene dicarboxylic acids, and alkylated aliphatic, polycarboxylic acids, such, as succinic, glutaric, adipic etc. acids. The acids may contain substituents. Particularly effective are alkyl succinic acids having at least 16 and. preferably 20 to 40 carbon atoms in the molecule. Hydroxy aromatic acids, includealkyl salicylic acids preferably having an alkyl radical of 12 or more. carbon atoms, hydroxy naphthoic acids or acids produced by coupling a phenol or naphthol with oleic or other unsaturated fatty acid or with rosin acid in the presence of aluminium, chloride. Among the auxiliary acids or esters of the second group specified are fatty. acids having, at least 7 and preferably 10 to 30 carbon atoms in the molecule, such. as lauric, stearic &c. acids, wool.fat acids, carboxylic. acids produced by oxidation of paraffin wax, naphthenic, acids, rosin acids such as abietic, acids from tall oil, benzoic and alkyl benzoic acids, naphthoic acids, phenol acetic and aromatic fatty acids. Esters suitable are those possessing at least 6 carbon atoms in the molecule such as butyl, hexyl octyl, stearyl &c. acetates, propionates,. stearates, abietates, naphthenates, benzoates and naphthoates, and also corresponding methyl, ethyl, propyl, and isopropyl esters having 6 or more carbon atoms in the molecule. The amounts of corrosion inhibiting.acid added to the lubricating or other oil may, be as small as 001 per. cent, but for petrolatums or albino asphalts as much as, 5 to 10 per cent, may be necessary. In ant example, lubricating oil containing, 0.1 per. cent of an alkyl succinic acid, of about 650, molecular weight and 0.2 per cent of stearic or oleic acid is shown to inhibit corrosion of a steel strip for 20 to 48 hours. Specifications 395,193, [Group IV], and 488,597 are referred,to.-,
Patent GB-372897-A (GB)
Title: An improved towel rail
IPC: A47K10/10
Filed: 1931-03-27
Abstract: 372,897. Towel rails. JENKINSON, L., 144, Victoria Street, Auckland, New Zealand. March 27, 1931, No. 9342. [Class 52 (v).] A towel rail consists of a length of strip metal A with bent over springy edges B and is supported by angle brackets D inserted in the ends of the rail.
Patent GB-869370-A (GB)
Title: Process for the polymerisation of olefines
IPC: C08F10/00
Filed: 1958-03-24
Abstract: 869,370. Olefin polymerization. GELSENBERG BENZIN A.G. March 24, 1958 [March 22, 1957], No. 9422/58. Addition to 822,611. Class 2(6). A modification of the process described in the parent Specification comprising the dry or substantially dry polymerization of olefins utilizing a mass of polyolefin, e.g. polyethylene, as carrier for a Ziegler type catalyst complex, wherein each catalyst component, or solution thereof, is conveyed as a separate stream of gas, mist or vapour and each stream is brought into contact with the stirred mass of polyolefin, the catalyst being formed thereon and wherein a part of the final polymerisate of olefin produced is returned into the process to initiate a subsequent repetition of the process. The part returned may be sieved to produce a uniform fine particle size and may be wetted with a solvent, e.g. benzine, insufficiently for the powdery character to be lost. The ash content may also be reduced prior to returning the polyolefin carrier and the material may be divided into two portions, each being treated with a different catalyst component, before being remixed and returned. Specification 847,490 also is referred to.