baber/WOPTO huggingface dataset:
Patent GB-443151-A (GB)
Title: Manufacture of organic acid anhydrides
IPC: C07C51/235
Filed: 1934-08-14
Abstract: Organic acid anhydrides are made by the oxidation of the aldehyde with air, oxygen or ozone and taking steps during or after the reaction to prevent the hydrolysis of the anhydride. The hydrolysis may be prevented by adding a water-binding agent such as anhydrous copper or calcium sulphate or silica gel or by means of a solvent for the anhydride in which water is insoluble such as benzene, toluene or xylene; the product is rapidly cooled and the oxidation is effected rapidly by adding a catalyst which may be a metal or compound thereof having more than one valency or mixtures thereof.  The oxidation may occur at or below ordinary temperature or at raised temperature, and ordinary or raised pressure, and the process may be continuous.  The removal of water from the reaction product may be effected by spraying the product into the hot or superheated vapour of the corresponding acid or on to heated stationary or moving surfaces in such vapour, and in this stage reduced pressure may be employed.  In examples: (1) oxygen is introduced into a mixture of glacial acetic acid and acetaldehyde containing manganese acetate in a vessel provided with a stirrer and cooling means and maintained at 42 DEG C. at 2 atmospheres pressure, the product being cooled to - 10 DEG C. and then treated for separating out the water; (3) anhydrous copper sulphate is added and the temperature is 25 DEG  C.; (4) manganese and cobalt acetates are employed as catalyst at 30--50 DEG C.; (5) manganese, cobalt and nickel acetates are used; (6) manganese cobalt, mercury and sodium acetates are used; (7) finely-divided copper and cobalt are used; (11) oxygen containing ozone is supplied, without a catalyst; (12) propionic anhydride is made from a mixture of propionic acid, propionaldehyde and manganese cobalt and copper acetates at 45 DEG  C. and 2 atmospheres pressure; butyric anhydride is made similarly, using copper acetate as catalyst; (14) benzoic anhydride is made from a mixture of acetic acid, acetaldehyde, cobalt and nickel acetates and benzaldehyde at 42--46 DEG  C. and 1,7 atmospheres pressure; (15) the reaction product of example 7 is sprayed into the middle of a column containing acetic acid vapour, acetic acid and water passing off through a dephlegmator, while the acetic acid and anhydride collected in the still are separated by fractional distillation; (16) the operation is effected as in example 15, but the mixture is sprayed on to a solid body in the column at 300 DEG  C.; (17) the operation is effected as in example 15, but acetic acid vapour at 300 DEG  C. is also admitted to the column; (18) butyric anhydride is separated as in example 15; (19) reduced pressure is employed in the separation.
Patent GB-1387392-A (GB)
Title: Handles for pouring devices
IPC: A47J45/07
Filed: 1973-05-16
Abstract: 1387392 Detachable decanter handles CORY CORP 16 May 1973 [30 Aug 1972] 23440/73 Heading A4A A handle 14 for a decanter is devided longitudinally into halves 20, 21 which are attached to or moulded with the ends of split bands 15, 16. When brought together the half handles are joined by studs and sockets with the bands surrounding the neck and bowl of the decanter. Fig. 6 shows a section through a stud and socket, stud heads 32 are trifurcated to allow them to close and pass through the socket 23 when their conical end is thereto presented but resist reverse movement by virtue of shoulders behind the head. The handle, bands and studs may be moulded of polypropylene and the neck band may be formed with a lip to underlie the spout of the decanter.
Patent GB-507980-A (GB)
Title: Improved manufacture of a grease composition
Filed: 1938-08-09
Abstract: 507,980. Lubrificating-greases. STANDARD OIL DEVELOPMENT CO. Aug. 9, 1938, No. 23452. Convention date, Nov. 24, . 1937. [Class 91] A lubricating-grease comprises mineral oil and 10 to 40 per cent of a mixture of sodium and barium soaps. The mixture of soaps is from 10 to 1 parts of sodium soap to 1 part of barium soap. The soaps are preferably soaps of saturated fatty acids such as stearates. In an example, 425 parts by weight of stearic acid and 500 parts by weight of a mineral lubricating oil of viscosity 200 seconds Saybolt at 100‹ F. are thoroughly mixed in a grease kettle at 140- 150‹ F. When the acid is completely molted and dissolved, 25 parts by weight of barium hydroxide in approximately saturated aqueous solution are stirred in. The temperature is then raised to about 360‹ F. while 62 parts by weight of sodium hydroxide (30 per cent aqueous solution) is stirred in. When saponification is complete and water substantially completely eliminated, the product is cooled to about 200‹ F. and is worked at that temperature for two or three flours. The grease has the following composition :-2À75 per cent of barium stearate, 21À25 per cent of sodium stearate and 76 per cent of mineral oil. Specification 469,889 is referred to.
Patent GB-155906-A (GB)
Title: Photographic enlarging and reducing apparatus, adaptable also for contact printing
IPC: G03B27/00
Filed: 1919-09-25
Abstract: 155,906. Bramwell, J. E. Sept. 25, 1919. Printing - apparatus; contact printing - frames ; bordering and vignetting. -Apparatus for enlarging, reducing,or contact printing comprises a vertical cabinet a, Figs. 2 and 3, having sliding doors b, a lamp box k on the top of which is a negative holder k<2>, a projection camera f<1> with a removable lens panel g, and an upper frame c containing sliding holders d, e for a negative, focusing plate or paper and. to which frame is hinged a pressure frame which also is adapted to hold a sheet of sensitized paper. The lamp box k is vertically adjustable in the cabinet a and has a removable reflecting mirror n. The vertical adjustments of the lamp box and of the lens are made by tapes which wind on drums g<1> and i<1> respectively. Alternatively rack and pinion adjustments may be used. The holders d, e are positioned in the slide c by a pin n'. The carrier e is fitted with a vignetting mask. The pressure frame comprises hinged bars e<5>, Fig. 4, connected by blocks e<6> one of which carries-a padded board e<4> which fits within a frame work e<1>. The frame work e<1> is hinged to the bars e<5> at e<10> and secured in position by a spring clip c<3>. Two thin strips e<3> slide on the frame e<1> and serve to hold a sheet of printing paper against the board e<4>. The pressure frame is normally held in raised position by a spring c<2> engaging under one of the bars e<6>. An additional lamp on a swing arm can be adapted near the top of the cabinet for contact printing.
Patent GB-316626-A (GB)
Title: Process for the electric purification of gases containing hot vapours
IPC: B03C3/014
Filed: 1929-07-31
Abstract: 316,626. Siemens - Schuckertwerke Akt.-Ges. Aug. 1, 1928, [Convention date]. Gases, treating with electric discharges.-In the electric purification of gases containing hot vapours, e.g. metal vapours, cold air or other gas is added to the gas under treatment before it enters the purifier in order to facilitate condensation. The amount of the addition may be automatically controlled by thermometers or hygrometers or by the current variations in the electric precipitator.
Patent GB-480710-A (GB)
Title: Improvements in or relating to microphone arrangements for oxygen and like face masks
IPC: H04M1/04
Filed: 1936-08-27
Abstract: 480,710. Respiratory masks. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and STEWART, J. Aug. 27, 1936, No. 23577. [Class 81 (ii)] In an oxygen or like mask with a microphone mounted thereon, a tubular mouth piece extends from the microphone into the mask to a point in close proximity to the mouth of the wearer, and is so arranged as, to a large extent, to prevent sound reaching the microphone otherwise than from the mouth of the wearer. As shown, a carbon microphone button 1 is mounted by means of a member 5 in the nose piece of a mask 4 constructed mainly of canvas and leather. A mouth piece 6 is mounted behind the microphone diaphragm 2, being attached to the housing 3 by screwed collar 7. The mouth piece may be straight, bent or flared, and is preferably made of soft or resilient material, for example, of felt or of spongy rubber material known under the Registered Trade Mark " Sorbo," e.g. a moulding of spongy rubber. It may incorporate pieces of rigid material, e.g. brass or steel, to take fixing screws, and may be covered by a preferably detachable oil silk cover.
Patent GB-871696-A (GB)
Title: Improvements in and relating to electrical control systems
IPC: H05B41/16
Filed: 1958-07-23
Abstract: 871,696. Distribution systems for street lighting. GOWLAND, D. J. Oct. 20, 1959 [July 23, 1958], No. 23599/58. Class 38 (4). An electric control system for street lighting or like purposes includes a number of separate distribution systems, say 2, 4, each of which includes one conductor 11 or 16 for connection to the street lighting, at least one conductor for supplying electric power, as shown 8, 9, 10 or 13, 14, 15 forming three-phase systems and one conductor 12 or 17 for a common neutral, the lighting conductor 11 being energized from a power conductor 10 by closing a master switch 18 which causes energization of the winding 6 of a relay to close its contact 7 over which the lighting conductor 16 is energized from its associated power conductor 15. Further distribution systems may be added by providing further relays, energization of all the lighting conductors being controlled by the master switch 18 which may be controlled manually or by a time switch or a photo-electric cell device.
Patent GB-1039537-A (GB)
Title: Process for the production of highly active isomers of hypertensin ó and its analogues
IPC: C07K7/14
Filed: 1963-06-13
Abstract: Title compounds of the formula L-b -asparagyl - L - a  - (amino - lower alkyl) - amino - acetyl-L - a  - amino - lower alkyl - acetyl - L - tyrosyl - L - a  - amino - lower alkyl - acetyl - L - histidyl - L-prolyl-L-phenylalanine, and mixtures of at least 80% b -and at most 20% a -isomers, and their physiologically acceptable acid addition salts, are prepared by heating a solution of the L-a -asparagyl-or L-a -asparaginyl-isomer at a neutral pH.  L-a -(amino-lower alkyl)-aminoacetyl is ornithinyl, argininyl, lysyl, citrullinyl or a ,g -diaminobutyryl, and L-a -amino-lower alkyl-acetyl is valyl, iso-leucyl, leucyl, norleucyl, norvalyl or alanyl.  Pharmaceutical compositions having hypertensive properties contain the compounds or mixtures of the invention and may be in forms for enteral, parenteral or topical administration.
Patent GB-687794-A (GB)
Title: Improvements in or relating to vehicles
IPC: B60F3/00
Filed: 1950-09-27
Abstract: 687,794. Road vehicle bodies. DOLPHIN, J. R. V. Oct. 24, 1951 [Sept. 27, 1950], No. 23651/50. Class 108 (i). [Also in Group XXXIII] A collapsable amphibious road vehicle is provided with a central back-bone type of chassis 11 to which are pivoted radius arms carrying the road wheels 18, 19, 38 and 39, and a pair of punt-like members 12, 13 which accommodate collapsable seats 59-62 are hinged along their inner edges to the backbone and may be folded upwardly to enclose substantially the entire vehicle. A separate cover may be used to enclose the power unit 51, 52. To maintain the wheels in their running positions transverse leaf springs are engaged under brackets 31 secured to the chassis 11 and have their outer ends pivotally connected to the blocks 28, 29, &c. The differential &c. gears are housed within the backbone and driving connection to the rear wheels is effected through half-shafts having detachable couplings for connection to the wheels.
Patent GB-952794-A (GB)
Title: Improvements in or relating to surface heat exchange apparatus comprising temperature-responsive devices
IPC: F24H9/20
Filed: 1962-06-20
Abstract: 952,794. Supply and delivery arrangements for water &c. heaters. H. R. GERDTS, and W. F. GERDTS, [trading as GUSTAV F. GERDTS KOMM.-GES.]. June 20, 1962 [June 27, 1961], No. 23653/62. Heading F4A. In a surface heat-exchange apparatus wherein a first fluid and a second fluid flow separately through the apparatus, a valve actuated in response to the temperature of the second fluid is provided in the outlet duct therefor to control the flow of the second fluid through the apparatus, increasing the flow as the temperature falls and vice versa and, to increase the speed of response of the valve, the said temperature is modified by bringing the outgoing second fluid into indirect heat exchange relation with the incoming first fluid. In the form shown, the apparatus consists of a tank 1 with an inlet 2 and outlet 3 for heating water and containing a coil 4 with an inlet 5 and outlet 6 for water to be heated, this water returning to the apparatus for reheating after circulation through an external circuit. The heating water outlet 3 leads to a housing 8 containing a thermostat 7 controlling a valve in the housing outlet 9. The inlet duct 5 is coiled around the housing or, in modifications, passes through the housing or connects to a jacket around the housing. The flow of heating water through the tank is controlled by the valve which opens as the outlet temperature of the water falls and vice versa, this temperature being modified by the temperature of the water in the duct 5. In a further modification a temperature-responsive device in the outlet 6 exerts an over-riding effect on the valve to prevent over-heating of the water leaving the apparatus. If the water flowing to the closed circuit is to be cooled the supply of heating water is replaced by a supply of cooling water, the valve 8 then remaining open. Alternatively the supply of heating water is shut off and the water being cooled passed through the path normally followed by the heating water.
Patent GB-978494-A (GB)
Title: Improvements in and relating to bleaching alginic acid
Filed: 1963-06-14
Abstract: Crude  alkaline  alginate  solution,  obtained from brown algae by means of alkali, is treated with an amount of hypochlorate, hypobromite, chlorine, bromine or mixtures thereof insufficient to cause  complete  bleaching  of  the  alginate solution and the alginic acid is precipitated. This acid, or an alkali metal alginate prepared there-from is then subjected to bleaching with chlorine dioxide. In one embodiment an alginate solution containing 0.1-0.5% by weight of alginic acid, prepared by alkali treatment of laminaria digitata and laminaria cloustonii, is treated with a quantity of hypochloride, hypobromite, &c., in aqueous solution at 0-60 DEG C. such that it is used up in 3-10 minutes by a 0.1% alginate solution. The alginic acid is then precipitated with mineral acid, and some of the liquid is removed from the suspension by flotation sedimentation or centrifuging. The suspension (1-8% solids) is then treated with chlorine dioxide in amount 10-100% in excess of that which is consumed by the alginic acid in 1 hour.Excess chlorine dioxide is removed by  a reducing  agent.  Alkali  metal  alginates prepared from alginic acid thus bleached in two stages have increased viscosities.
Patent GB-1204662-A (GB)
Title: Improvements in and relating to an educational and advertising device
Inventor: KINGSTON EGON IVAN
IPC: G09B5/02
Filed: 1966-05-26
Abstract: 1,204,662. Pictures. JOHN WALLACE PRINTING Ltd. 25 Aug., 1967 [26 May, 1966], No. 23723/66. Heading B6X. [Also in Division G2] A display sheet is prepared by taking a coloured photograph, producing a black and white image thereof on the light-sensitive side of a translucent photosensitive sheet and a printed reverse colour image thereof on the opposite side of the sheet said reverse colour image being obtained by separating the colour photograph into one or more of its colour components and printing one or more of the colour components in reverse on the said opposite side in register with the black and white image.
Patent GB-333052-A (GB)
Title: Improvements in frames or machines for cutting the pile of pile fabrics
IPC: D06C13/08
Filed: 1929-08-03
Abstract: 333,052. Roger, G. Aug. 3, 1929. Pile, cutting.-In a cord-and-pulley type of pile-cutting machine, the knife 3 is mounted in a holder 4 which moves relatively to the carriage 1 when the cutting pressure increases or diminishes this movement being transmitted by a flexible cord &c. 12 to the stop mechanism. The cord 12 passes round a pulley 14 mounted in a pivoted arm 17 which is kept in normal position by a weight 24 and spring 26. When the cord 12 is tightened or slackened, the arm 17 moves to stop the machine.
Patent GB-771745-A (GB)
Title: Improvements in or relating to stabilising devices for vehicles
IPC: B60G21/055
Filed: 1955-08-19
Abstract: 771,745. Torque rods. MONROE AUTO EQUIPMENT CO. Aug. 19, 1955 [Nov. 3, 1954], No. 23983/55. Class 79(4). [Also in Group XXXII] Relates to a vehicle having a frame 19, 21 and road wheels 5 carried by an axle 6 rotatably supported within an axle housing 7 connected to the frame by longitudinally extending leaf springs. According to the invention bar means 37 is provided comprising a first portion 39 extending laterally of the frame and a second portion comprising arms 41, 43 extending longitudinally of the frame and rigid with the opposite ends of the first portion 39, one of the bar portions 39 being pivotally connected to the axle housing 7 for rotation about an axis extending substantially parallel to but offset from the rotative axis of the axle 6, while the other 41, or 43 is connected to the frame adjacent the opposite sides thereof for rotation about an axis substantially parallel to the axis of rotation of the first portion, the arrangement being such that the points of connection to the frame will be spaced longitudinally of the point of connection to the axle housing while each point of connection with the frame will be spaced relative to the centre of rotation of the adjacent spring portion so as to confine the movement of the axle housing 7 relatively to the frame 19, 21 to a substantially predetermined path while preventing any substantial rotation of the axle housing relatively to the frame whereby at the same time the bar means 37 acts to resist vertical movement of one side of the frame relatively to the other and acts to prevent lateral movement of the frame relative to the axle housing. As shown, the connections of the bar portions 39, 41 and 43 to the axle housing and frame respectively are made through resilient mountings 51 and 59. In an alternative arrangement, Figs. 3 -and 4 (not shown), the bar portion 39 is pivotally connected to a frame cross member forwardly of the axle housing and the portions 41, 43 are connected to the axle housing.
Patent GB-400392-A (GB)
Title: Improvements in and relating to movable sluice weirs
IPC: E02B7/20
Filed: 1932-08-27
Abstract: 400,392. Sluice valves. THORNTON, A. A., 7, Essex Street, Strand, London.- (Vereinigte Stahlwerke Akt.-Ges. ; 67, Breitestrasse, D³sseldorf, Germany.) Aug. 27, 1932, No. 24029. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 1, 1933.] Addition to 400,391. [Class 68 (ii).] In a modification of the triangular-section sluice-weir described in the parent Specification the upper and lower edges 2, 3 are bevelled, chamfered or rounded; preferably the bevel 3, or the tangent 2a.to the curve 4, are at rightangles to the beams 7, 6 respectively.
Patent GB-643071-A (GB)
Title: Improvements in frames for automobiles and other vehicles
Inventor: BENTLEY WALTER OWEN
IPC: B62D21/00
Filed: 1944-12-01
Abstract: 643,071. Vehicle underframes. BROWN TRACTORS, Ltd., D. Dec. 1, 1944, No. 24077. [Class 79 (iv)] In a chassis for vehicles the main longitudinals comprise beams 1, 2 which are formed as a single unit, and cross at their approximate centre so that bending loads in the beams are transmitted therethrough, and vertical loads can be transmitted from one beam to the other. Cross beams 3, 4 join the extremities of the beams and are rigid to both bending and twisting loads and 5 is an additional crossmember connecting beams 1, 2 together at the points at which rear suspension links 6, 7 are pivoted as described. in Specification 643,076, [Group XXXII], The cross-members 3, 4 are provided with extensions 8, 9, 10, 11, for carrying bumpers, petrol tank &c. Sideways bending of the beams is prevented by longitudinal ties 12, 13 connected to the intersecting point of the beams by kingpost members 14, 15. The beams 1, 2 are preferably formed of I-section but may be formed of channel or box-section and the cross-members 3, 4 are preferably made of box section. The crossing point of the beams 1, 2, Fig. 2, is strengthened by V-shaped brackets 20 perforated at the apex for the propeller shaft and vertical plates 24 at each side which form abutments for upper and lower kingposts 14, 15, which prevent sideways bending of the crossing point of the beams. Top and bottom plates 27, 28 are welded to the flanges of the I-beams.
Patent GB-1063376-A (GB)
Title: Improvements in and relating to milling cutters for manufacturing splined shafts
IPC: B23C5/14
Filed: 1964-06-10
Abstract: 1,063,376. Milling cutters. ZAHNRADFABBIK FRIEDRICHSHAFEN A.G. June 10, 1964 [June 26, 1963], No. 24098/64. Heading B3K. A milling cutter for the rough-machining of splined shafts to produce a relief at each comer of the slot comprises an elbowed cutting-edge composed of rectilinear portions 2, 6, 5, 7, 8, 3. The cutter may have alternate right- and lefthand cutting-edges, i.e. cutting on alternate sides of the line I-I. The cutter leaves a grinding allowance (hatched) of constant depth. The cutter may be a hob.
Patent GB-1128052-A (GB)
Title: Alkanolamine derivatives
Inventor: GILMAN DAVID JOHN
IPC: C07D303/24
Filed: 1965-06-08
Abstract: 1,128,052. Alkanolamine derivatives. IMPERIAL CHEMICAL INDUSTRIES Ltd. 11 May, 1966 [8 June, 1965], No. 24189/65. Addition to 1,069,341. Heading C2C. Racemic compounds of the general formula (I) (wherein R<SP>1</SP> stands for hydrogen or an alkyl radical, R<SP>2</SP> stands for an alkyl, hydroxyalkyl or cycloalkyl radical and R<SP>3</SP> stands for an alkyl radical of 2 or more carbon atoms or a haloalkyl, cycloalkyl or alkenyl radical), esters and aldehyde condensation products thereof, and acid addition salts of the alkanolamine derivatives, esters and aldehyde condensation products, are prepared by (a) reacting a compound of the formula (II) (wherein Z stands for a halogen atom) with NHR<SP>1</SP>R<SP>2</SP>, (b) reacting a compound of the formula (III) with NHR<SP>1</SP>R<SP>2</SP>, (c) reacting a compound of the formula (IV) or an alkali metal derivative thereof, with a compound of the formula or (d)-in cases wherein R<SP>1</SP> stands for hydrogenhydrogenolysing a compound of the formula (V) (wherein R<SP>5</SP> stands for a hydrogenolysable radical) or an acid addition salt thereof, (e)-in cases wherein R<SP>1</SP> stands for hydrogen and R<SP>2</SP> stands for a radical of the formula -CHR<SP>6</SP>R<SP>7</SP> (wherein R<SP>6</SP> stands for hydrogen or an alkyl radical and R<SP>7</SP> stands for an alkyl or hydroxyalkyl radical, or wherein R<SP>6</SP> and R<SP>7</SP> are joined together with the adjacent carbon atom to form a cycloalkyl radical)-reacting a compound of the formula (VI) with R<SP>6</SP>COR<SP>7</SP> under reducing conditions, (f) reacting a compound of the formula (VII) with a reactive ester derived from R<SP>2</SP>OH, (g)- in the case of aldehyde condensation products of the formula (VIII) (wherein R<SP>4</SP> stands for hydrogen or an alkyl or aryl radical) and their salts-reacting a racemic compound of the formula (IX) or an acid addition salt thereof, with R<SP>4</SP>CHO, or (h)-in the case of esters and their saltsacylating the corresponding alkanolamine derivative or an acid addition salt thereof (when R<SP>1</SP> stands for hydrogen, a salt must be used), optionally followed in each ease by salt formation. The preparation of starting materials of formulµ (II), (III), (IV), (V) and (VI) is described. The compounds of the invention are #- adrenergic blocking agents. Reference has been directed by the Comptroller to Specifccations 1,077,249 and 1,077,603.