baber/WOPTO huggingface dataset:
Patent GB-1429285-A (GB)
Title: Process for the preparation of phosphoranes
IPC: A23L27/20
Filed: 1974-06-05
Abstract: 1429285 Preparing phosphoranes and quaternary phosphonium salts FIRMENICH SA 5 June 1974 [7 June 1973] 16163/75 Divided out of 1429284 Heading C2P Phosphoranes of the formula in which R is an aliphatic, cycloaliphatic or aromatic radical and R<SP>1</SP> is an alkyl radical or H and the double bond in the 2-position is in the trans configuration are prepared by (a) reacting a phosphine : PR 3  with a dihalo compound wherein X is a halogen atom, to form a quaternary phosphonium salt; and (b) reacting the salt with at least two equivalents of base, such as an alkali metal alkoxide or alkali metal secondary amide. Examples describe the reaction of PPh 3  and 1,4-dibromo pent-2-ene to give 4- bromo pent-2-trans-en-1-yl triphenyl phosphonium bromide which is subsequently reacted with potassium t-butoxide in diethylether, THF or DMF solution, to form a mixture containing the phosphorane: penta-2-trans, 4-dienylidene triphenylphosphorane.
Patent GB-1397243-A (GB)
Title: Spring contacts and their manufacture
IPC: H01C1/12
Filed: 1971-05-21
Abstract: 1397243 Making contacts F L DIETERICH 17 Aug 1972 [21 May 1971] 16279/71 Heading B3A [Also in Divisions C7 and H1] A spring contact blank, e.g. for a potentiometer, is made by winding a wire on a former 12 to form a coil 11 and cutting the coil longitudinally and removing it from the former 12 to produce a sheet 22 comprising side by side wire fingers 26 either before or after the steps of applying a mask to the wire except for spaced bare strips 16 and depositing continuous strips of conductive metal on the bare strips 16. In one embodiment, a wire of 0À002-0À005 inch diameter and containing 32% Pd, 27% Ag or 30% Au, 30% Pt is wound in a stainless steel mandrel 12 to form a coil 11 which is dipped in a masking solution 13. Longitudinal strips 15 of the mask are removed to leave spaced bare strips 16 which are plated with copper, nickel or silver to a thickness of 0À002- 0À005 inch in a bath 17 containing a cylindrical anode 18. Alternatively, the bare strips 16 are defined by photographic masking or by strips of masking tape (63) (Fig. 11, not shown), adhered to the coil which is wound on a glass mandrel (62). After cutting the coil longitudinally and straightening it into a sheet 22, the latter is cut into a number of individual blanks. The blanks are heat treated before or after forming rounded contact points on the wire fingers 26 by dies 31, 32. In another embodiment (Fig. 7, not shown), the coil turns are stuck together by lacquer or tape and removed from the mandrel 12 prior to the masking step. In a further embodiment, both sides of the coil 11 are plated by using a tubular mandrel (51), (Fig. 8, not shown), having slots (52) and an additional anode (56).
Patent GB-871034-A (GB)
Title: Improved domestic washing machine
IPC: D06F37/36
Filed: 1959-05-13
Abstract: 871,034. Washing machines. GENERAL MOTORS CORPORATION. May 13, 1959 [May 28, 1958], No. 16415/59. Class 138 (2). [Also in Group XXIV] In a washing machine having a motor 67 which is rotated in one direction to produce vertical reciprocation of an agitator and in the opposite direction to produce spinning of a clothes tub and agitator, means are provided for preventing a reversal of the wash cycle from spinning to agitation resulting from differences in the rates of deceleration of driven and drive members. The invention is applied to a machine as described in Specification 871,032, in which a high-speed drive is transmitted through a screw clutch 220, pulley 212, belt 122, pulley 104, a housing 60, hub 98, spring clutch 96 and collar 82 to a tub shaft 42. Low-speed reciprocation of an agitator shaft 58 is effected through clutch 220, pulley 214, belt 123, pulley 126, housing 60 and an angularly mounted member 160, shaft 42 being held stationary by spring clutches 96, 182 and a brake plate 192. When the motor 67 is deenergized at the end of a spinning operation, owing to differences in inertia and therefore of deceleration rates of the drive and driven members, the effect of a motor reversal would be produced, causing reciprocation of shaft 58. This is overcome, according to the invention, by four arcuate clutch shoes 242 which move outwardly under centrifugal action into contact with the housing 60, and prevent or reduce relative rotation between the housing 60 and shaft 42. The shoes 242 are supported centrally by rods 240 and at each end by tabs 248. A similar problem arises when, at the end of a spin cycle, the screw clutch 220 decelerates more slowly than the motor shaft and threads itself on screw 230 away from pulley 212. However, before the clutch 220 can engage pulley 214, it is stopped by a bell-crank 270 (Fig. 5), pivoted at 272 and biased by a spring 274 to engage a notch 278 in the screw 230. Specification 871,033 also is referred to.
Patent GB-214502-A (GB)
Title: Automatic locking device for the doors of vehicles
IPC: E05B65/42
Filed: 1923-06-25
Abstract: 214,502. Barber, J. T. K., and Pyke, G. F. June 25, 1923. Railway-carriage doors, fastening automatically.-In means for automatically locking the doors of railway carriages by a wind vane, the vane m is carried by an arm k mounted on a pivot h on a plate b carrying a socket for housing a spring-retracted doorlocking bolt a. The end of the vane. arm extends through, and operates, a slidable member e having a V-notch in which a roller d on the bolt bears. Displacement of the vane in either direction causes the bolt to be projected into locking position, the spring bolt acts through the notch to return the vane to central position when the vehicle stops.
Patent GB-323998-A (GB)
Title: Improvements in and relating to scissors
IPC: B26B13/28
Filed: 1929-05-28
Abstract: 323,998. Woythal, J. M. May 28, 1929. Disc and like plate hinges ; joint pins.-The fulcrum pivot of a scissors comprises two tubular members 16, 19, each provided with enlarged' ends which press' against the outer blade surfaces. A member 16 encloses a spring or other resilient member 28 which bears on a shoulder 18 and the bead 30 of a screw or like member 29 attached to the member 19.
Patent GB-612685-A (GB)
Title: Variable speed transmission device and clutch
IPC: F16H15/14
Filed: 1946-05-30
Abstract: 612,685. Variable-speed gearing. HAMRE, K. B. May 30, 1946, No. 16464. Convention date, Nov. 14, 1940. [Class 80 (ii)] A variable-speed device comprises driving discs 2 slidingly splined to the driving shaft 1 of a motor M which frictionally engage driven discs 5 slidingly splined to a drum 4 secured to a hollow driven shaft 8 on which is secured a pulley 12. The motor M is rigidly secured to a slide 13 which may be displaced vertically by rotation of a hand wheel 15 and screw 14, thus effecting speed changes by varying the position of frictional engagement of the discs 5 on the discs 2. Engagement between the discs is ensured by a spring 9 housed within the shaft 8, acting on a disc 6 secured to the outer disc 5. The loading of the spring 9 may be varied by a bolt 10 screwed into the shaft 8. The device may also function as a clutch mechanism by providing a system of levers connected to the hub 7 of the disc 6, which upon actuation, compress the spring 9 so that the driving and driven discs are separated.
Patent GB-1430490-A (GB)
Title: Chromatographic fractionation of whey
IPC: B01J39/26
Filed: 1974-04-16
Abstract: 1430490 Chromatographic separation of whey BOEHRINGER MANNHEIM GmbH 16 April 1974 [18 April 1973] 16465/74 Heading B1H Whey is chromatographically separated on an ion-exchanger in its neutral form using demineralised water as the eluent. The ionexchanger may be a polystyrene resin containing sulphonic acid groups preferably loaded with calcium ions and having a divinyl-benzene content of 2-4%. The whey may be concentrated prior to separation. The example describes the separation of whey into protein, lactose, intermediate runnings, and calcium lactate.
Patent GB-883611-A (GB)
Title: Improvements in or relating to steroid derivatives
IPC: C07J75/00
Filed: 1960-05-10
Abstract: The invention comprises compounds of the general formulae <FORM:0883611/IV (b)/1> <FORM:0883611/IV (b)/2> <FORM:0883611/IV (b)/3> wherein X represents fluorine, chlorine or bromine, Z represents a carbonyl, b -hydroxy-methylene or b -alkanoyloxymethylene radical, containing less than 10 carbon atoms, Y represents hydrogen or the methyl radical, and R represents an alkyl radical containing less than 9 carbon atoms.  The compounds are prepared by acylating the required 9a -halo-17a -hydroxypregn-4-ene-3,11,20-triones and oxidizing these compounds with selenious acid to form rhe 11-keto compounds of the first general formula, or with chloranil in a non-polar solvent such as xylene to form the 11-keto compounds of the second general formula, or with an excess of chloranil and n-amyl alcohol to form the 11-keto compounds of the third general formula.  The 11b -hydroxy and 11b -alkanoyloxy compounds of the above general formulae are prepared by similar methods by first acylating or diacylating the required 9a -halo-11b ,17a -dihydroxy-pregn-4-ene-3,20-diones to form 17a -alkanoates and 11b ,17a -dialkanoates and then dehydrogenating as above.  Detailed examples are given.  9a  - Halo - 17a  - alkanoyloxypregn - 4 - ene - 3,11,20-triones, wherein the halogen atom is fluorine, chlorine or bromine, are prepared by reacting the required 9a -halo-17a -hydroxypregn-4 - ene - 3, 11, 20 - triones with alkanoic acid anhydrides in the presence of an acid catalyst such as p-toluenesulphonic acid, and hydrolysing the resulting enolacetates with mineral acid. Detailed preparations are given.  9a - Halo - 11b , 17a  - dihydroxypregn - 4 - ene - 3,20-diones 17a -alkanoates and 11b ,17a -dialkanoates, wherein the halogen atom is fluorine, chlorine or bromine, are prepared by partially or completely acylating the required 9a -halo-11b , 17a  - dihydroxypregn - 4 - ene - 3,20 - diones.  Detailed preparations are given.
Patent GB-1434171-A (GB)
Title: Diuretic and antihypertensive medicines comprising pyrazolone derivatives
IPC: C07D231/20
Filed: 1974-04-16
Abstract: 1434171 Pyrazolones BAYER AG 16 April 1974 [17 April 1973] 16509/74 Heading C2C [Also in Division A5] Compounds of the general formula wherein R is H, alkyl or amino, X is methylene or ethylene optionally substituted on each or either C atom by an alkyl group, Y is a single direct bond or, when X is other than alkylsubstituted methylene, an oxygen or sulphur atom and Z is a phenyl or naphthyl radical which may optionally be substituted, are prepared by reacting a hydrazine of the formula Z-Y-X-NH.NH 2  with an acetic acid derivative of the formula in which X<SP>1</SP> is OH, alkoxy, aralkoxy, amino or alkylamino, Y<SP>1</SP> is H and Y<SP>2</SP> is a nitrile radical of the formula in which Y<SP>3</SP> is H or a C 1-4  straight or branched alkyl radical or Y<SP>1</SP> and Y<SP>2</SP> together represent in which Y<SP>4</SP> is alkoxy, aryloxy, aralkoxy, alkylmercapto or aralkylmercapto or amino, optionally in the presence of an inert solvent or a basic or acid catalyst. Optical antipodes of the compounds may be resolved by conventional techniques, or the starting compounds may be used in optically pure form.
Patent GB-442510-A (GB)
Title: Improvements in sewage treatment
IPC: C02F3/12
Filed: 1934-06-02
Abstract: 442,510. Treating sewage. DORR CO., Inc., 247, Park Avenue, New York, U.S.A. June 2, 1934, No. 16515. Convention date, July 14, 1933. [Class 111] Sewage sludge is subjected to digestion in tanks 11, 27 successively, being agitated with evolution of gas in the tank 11 and allowed to settle in the tank 27. The sludge is fed intermittently to the tank 11 through a pipe 18 and passes on to the tank 27 through a pipe 28. The tank 11 is fitted with heating coils 21 and a shaft 22 carrying agitators 23, 24, 25. Each agitator comprises a disc 39, Fig. 3, with curved blades 40 above and below, the discs for the agitators 24, 25 being horizontal while that for the agitator 23 is inclined. Gas given off in the tank 11 collects in a dome 20 and is passed through a pipe 32 to a gas holder 31 above the tank 27. Clear liquid is discharged from the tank 27 through a pipe 30 and sludge through a pipe 29.
Patent GB-213167-A (GB)
Title: Improvements relating to legs for supporting metal washing boilers, set-pots and thelike, and for analogous purposes
IPC: D06F1/00
Filed: 1923-06-26
Abstract: 213,167. Rowell, J., Rowell, R. H., and Roxburgh, A. B. June 26, 1923. Feet.-A foot or leg for use in supporting metal washing boilers, set-pots, washing coppers and for analogous purposes, comprises a metal strip a having beaded edges c and bent so that it is of substantially triangular semi-circular or channel section at its lower end, the said section being progressively flattened towards its upper end. The upper end is slotted at d to form a central tongue e, and side portions g, which lie on opposite sides of the lower edge of the casing of the metal boiler &c., as shown, and are secured by rivets.
Patent GB-203424-A (GB)
Title: Improvements in the diaphragms of sound recording and reproducing instruments
IPC: H04R7/00
Filed: 1922-06-16
Abstract: 203,424. Howard, R. D. June 16, 1922. Tool-arm mountings. - In a soundrecording or reproducing instrument, the diaphragm is curved cylindrically before being fixed in the sound-box, and when in position it is flattened by the clamping action of the sound-box casing assisted by spring pressure applied through the stylusbar. The diaphragm A, which is shown separately in Figs. 3 and 4, is preferably. made of celluloid, and may be reinforced by a metal spring plate G, preferably of thin steel. The preliminary curving of the diaphragm may be effected by securing a curved metal spring to a normally flat non- metallic disc. The stylus-bar D is mounted on a knife-edge D<1> and held in position by two oppositely-disposed flat springs E, F, engaging with adjustable screws J. H.
Patent GB-1382877-A (GB)
Title: Apparatus for conveying information from a moving object
IPC: G01P3/481
Filed: 1972-04-11
Abstract: 1382877 Tyre under-inflation indicators; balance weights R G WHITEING and J G A VAN MILL 11 April 1972 [17 Dec 1971] 16680/72 Heading B7C [Also in Divisions G1 G4 and H1] An alarm system (see Division G4) is applicable to the monitoring of pressure or temperature of tyres. As described, a permanent or electromagnet is mounted on a stationary member adjacent the wheel of a vehicle and momentarily closes a magnetically operable reed contact unit 55 each time the contact unit passes within the field of the magnet. A switch 54 is opened if the tyre pressure or temperature is abnormal so that a current pulse is induced in windings 56, 57, inducing a pulse in pick-up coil 50 which (after optional amplification at 51) triggers an SCR 53 which operates a red light 52, a buzzer 60 and extinguishes a green light 58. Balance weights.-Details 54 ... 57 may be encapsulated in a protective material and clipped to the rim of the wheel (Fig. 7, not shown) in the manner of a balance weight. Modifications.-Figs. 2 and 3 (not shown) relates to an electronic comparator arranged to monitor the pick-up coils 50 on a pair of wheels and to provide a warning of a defective tyre on one of the wheels. Fig. 4 (not shown) depicts a mimic diagram in which a red light indicates which of six tyres of a vehicle are defective. Fig. 5 (not shown) depicts a tyre valve having a branch pipe feeding a pressure sensitive switch.
Patent GB-657772-A (GB)
Title: Improvements in and relating to the accomplishment of chemical processes
IPC: B01J14/00
Filed: 1948-06-22
Abstract: Chemical reactions between liquid reactants or reactants p  dissolved or dispersed in liquid media which react with the evolution of heat capable of causing secondary reaction, are effected by mixing the reactants in an atomizer and, a fraction of a second after mixing, ejecting the mixture into an inert gaseous medium having a temperature and vapour pressure such as to prevent an increase in temperature of the reactants which would cause secondary reactions. The process may be applicable to the saponification of fats with alkalies.
Patent GB-928038-A (GB)
Title: Improvements in and relating to textile drafting apparatus
IPC: D01H5/40
Filed: 1961-05-09
Abstract: 928,038. Gill boxes; drafting fibres. WARNER & SWASEY CO. May 9, 1961 [May 18, 1960], No. 16828/61. Classes 120 (1), 120 (2) and 120 (3). In apparatus for detecting and correcting irregularities of thickness of a sliver in a gill box employing infinitely variable speed gearing, the control member for the variable speed gearing is poweractuated in response to signals from mechanism responsive to variations in sliver thickness. The last - mentioned mechanism preferably includes a " memory wheel," i.e., a time delay relay of the type comprising parallel rods axially slidable in a rotary cylinder and it is stated that, by reason of the variable speed control being poweractuated, the rods are not required to exert so much force on the member sensing their positions. The " memory wheel " mechanism indicated at 53 transmits delayed signals originating from detector rollers 33, 34, Fig. 5, through a read-out member 62 that controls displacement of a beam 65 pivoted to a disc 66 rotatable about a pivot on an arm 91 pivoted at 92 in such manner that displacement of the beam 65 where it is connected to guide-rods 82 is linear. The guide-rods 82 lie parallel to the spool of a valve that, on displacement of the beam 65, connects an actuator 68 either to a source of fluid pressure or to drain to actuate through a rod 71 and a crank-arm the variable speed gear unit 18. As the crank-arm is turned by the actuator it moves, by a roller 97 mounted upon it, the disc 66 so as to return the valve 67 to neutral position. The variable speed gear unit 18 drives the detector rollers 33, 34, the " memory wheel " cylinder, the gill box fallers and the sliver creel. In order to alter speeds for given thicknesses of sliver, a lever 48 inserted between the detector rollers 33, 34 and the "memory wheel" mechanism 53 has its pivot 51, Fig. 3, mounted on a slidable block 50 adjustable by a lead-screw 103. Each end of the lever 48 has faces 48a, 48b that remain in contact with signal transmitting members 46, 52 and an indicator 108 is provided to show when the setting of the lever 48 will provide a predetermined output speed of the gear unit 18. A rod 119 moves with the detector 108 as it follows the movements of the lever 48 and, if the sliver breaks or is too thick, cams on the rod 119 actuate a switch to stop the machine.
Patent GB-1047625-A (GB)
Title: Apparatus for drawing by hydraulic energy ferrous and non-ferrous tubes and other profiled bars
IPC: B21C19/00
Filed: 1963-04-29
Abstract: 1,047,625. Draw benches. A. A. PINARD April 29, 1963 [Feb. 16, 1963], No. 16829/63 Heading B3P. An hydraulically operated draw bench comprises a draw carriage 10 to which are attached two open-ended hollow pistons 9. Each of the pistons works in a cylinder 8, the cylinders being mounted on the frame of the bench with their closed ends adjacent the draw plate. The ends of the cylinders which are attached to the draw carriage are connected by a fluid passage C. Hydraulic fluid is supplied to the cylinders 8 by a unit which includes a reservoir 2, a pump 1, a relief valve 3, a pressure gauge 4, a pressure intensifier M, an anti-surge device A, and a distributer valve 5 driven by reduction gearing 6 and 7. Fig. 4 (not shown) illustrates a drumtype back-bench for use with the bench and arranged to deliver three components 17 at a time to the drawing axes. The drum is supported on rollers 18 and is rotated through 180 degrees by the device shown in Fig. 7 (not shown) which comprises a double-acting hydraulic cylinder 36, the piston-rod 37 of which is connected by a rope 34 to a hook 33 on the drum. A gripper, Fig. 6 (not shown), is mounted on the draw-carriage opposite each die. Each gripper comprises three jaws 29 mounted on the piston-rod 28 of an hydraulic cylinder 24. Pressure fluid is admitted through a port 26 to move the piston 25 to the left (as seen in Fig. 6). The divergent arms of the grippers engage rollers 31 which cause the grippers to close on to the work to be drawn. The components to be drawn are moved from the back bench into the dies by the device illustrated in Fig. 8 (not shown). A piston 43 slides in a cylinder 42 and moves a carriage 48 along rails 49. Mounted on the carriage is a cylinder 44 containing a piston 45 which has a piston-rod 46. At the top of the piston-rod is a gripper 47 of Y-shape as shown at the right of Fig. 8. The grippers are raised to engage the components and then move the pointed ends 52 of the components through the dies 51 into a position in which they can be engaged by the grippers 29. At the end of the working stroke the draw carriage is hauled back to the starting position by ropes 12 connected to an electrically driven winch.
Patent GB-168512-A (GB)
Abstract: 168,512. Jarvis, E. H., and Bradbury, H W. Aug. 11, 1920. Wind-screens.-An auxiliary or side screen B for a motor or like vehicle is attached to the main, screen A by being supported by one or more clips c which are pivoted to a second set of clips D attached to the main screen. In the construction shown in Figs. 1 and 2, the clip D is a spring clip embracing the edge of the glass screen A directly, both sets of clips C, D having rubber, felt, or like linings, and being provided with apertured lugs C<2>, D<2> for the passage of connecting-pins C<3>. In a modification, Fig. 4, a screw clip D<3> is employed embracing the side edge of the frame A<1> of the main screen.
Patent GB-561568-A (GB)
Title: Improvements relating to the spacing of indicator cards or boards used in filing systems and the like
IPC: B42F17/02
Filed: 1942-11-27
Abstract: 561,568. Filing papers. COPELANDCHATTERSON CO., Ltd., and ELSDEN, H. E. Nov. 27, 1942, No. 16899. [Class 146 (i)] Relates to the spacing apart of dividing boards or cards used for separating index cards or other filed matter in a card index. To prevent the dividing-boards A from approaching too closely to one another, they are provided near the lower edge with studs or eyelets B, which abut against adjacent boards or against similar studs or eyelets thereon. The spacing may be increased by washers C surrounding the eyelets. The usual guide-rods, that run from the front to the rear of the drawer, may pass through the eyelets. The boards A are separated into groups by a spacer in the form of a pair of plates or rails F having at intervals upstanding ribs d, which project between different sets of the boards. The index cards, &c. rest on the rails F, and are thereby supporte d at a higher level than the separating-studs B.
Patent GB-1350923-A (GB)
Title: Method for preparing oxides of fissile materials
IPC: C01G43/01
Filed: 1971-05-25
Abstract: 1350923 Uranium oxides COMMISSARIAT A L'ENERGIE ATOMIQUE 25 May 1971 [25 May 1970] 16945/71 Heading ClA Uranium oxides are prepared by spraying a mixture of a uranium nitrate solution and formic acid, into a first zone in a vessel maintained at 150-300‹ C., and calcining the product from the first zone in a second zone in the same vessel. The nitrate may be aqueous uranyl nitrate and may be mixed with 0À4 ml. formic acid/gm.U. The solution may be sprayed in with air or H 2 / N 2  mixture as an atomizing gas the gas being first brought to the temperature of the first zone. The calcining may be carried out at 800‹ C. in air to yield U 3 O 8 , or in hydrogen to yield UO 2 . The intermediate product has a specific area of 2À5-7 m.<SP>2</SP>/gm. and an apparent density of 0À9-1À8 g./cm.<SP>3</SP>. A U 3 O 8  product has a specific area of 2À7 m.<SP>2</SP>/gm., an average grain diameter of 1À2 Á and an apparent density of 1À5 g./cm.<SP>3</SP>. The UO 2  products have specific areas of 1À4- 4-5 m.<SP>2</SP>/g., average grain diameter of 0À5-1À6 Á and apparent density of 1À2-2À6 g./cm.<SP>3</SP>.