baber/WOPTO huggingface dataset:
Patent GB-313569-A (GB)
IPC: C08F214/00
Filed: 1929-06-13
Abstract: 313,569. I. G. Farbenindustrie Akt.- Ges. June 14, 1928, [Convention date]. Polymerized vinyl halides.-Vinyl halides are polymerized by heating them at a very slowly rising temperature under pressure, in the presence or absence of a catalyst such as organic or inorganic superoxides and, if desired, while subjecting them to the action of chemically active rays. An indifferent solvent such as benzene, chloroform or ethylene chloride, or one that is itself capable of undergoing polymerization such as butadiene, vinyl acetate or styrene may be added. When working without a solvent, the product is precipitated in the form of a white cake; when with a solvent, glassy masses of high elasticity and power of resistance are obtained. After they have been freed from volatile constituents they may be worked up, like celluloid, into commodities of the most varied kind. Thev mav be combined with resins, oils, cellulose derivatives or filling materials of any kind. In combination with solvents such as chlorinated hydrocarbons, cvclohexanone and some ethers and esters of high boiling point or mixtures thereof, they can be worked up into lacquers. In examples (1) vinyl chloride is introduced under pressure into a bomb lined with enamel or a noble metal and heated gradually from 30 to 60 C. during several hours, the final temperature being maintained for a long time: the white cake obtained may be purified by precipitation from solvents and worked up to shaped articles; (2) vinyl chloride and ethyl chloride are mixed with intensive cooling and afterwards heated in an autoclave as in (1), giving a transparent vitreous mass which by heating may be converted into solid incombustible insulating substances; (3) vinyl chloride is mixed with vinyl acetate and treated as in (2) giving a transparent product which, when dissolved in a mixture of cyclohexanone and benzene, gives a lacquer which may be used alone or combined with a cellulose derivative, a resin, caoutchouc or the like.
Patent GB-762238-A (GB)
Title: Improvements in or relating to extrusion of aluminium
Inventor: OWEN ANTONY BLAIR
IPC: B21C23/32
Filed: 1954-06-22
Abstract: 762,238. Extruding. ALUMINIUM LABORATORIES, Ltd. June 9, 1955 [June 22, 1954], No. 18298/54. Class 83 (4) In the extrusion of aluminium or its alloys, graphite 5 is attached to the face of the extrusion die 1 to act, as a substantially stationary lubricant film over which the metal at the leading end of the billet slides. The graphite is preferably inserted as a disc in front of the billet and pressed by the latter against the face of the die having a series of concentric depressions or serrations 3 into which the graphite is pressed and anchored. The depressions 3 also extend over the face of the die holder 2. Alternatively a removable die face member may be used, to which graphite mixed with a plastic binder is bonded under heat and pressure. The bore of the container 7 is also provided with a layer 6 of graphite suspended in heavy oil. The die holder 2 has a small annular surface of contact 8 with the end of the container 7 so as to produce a high intensity of pressure between these two faces and thus prevent escape of metal therebetween. An example is given for the extrusion of a graphite-lubricated alloy containing aluminium, copper, silicon, magnesium. Comparison is made between the use of graphite as against glass lubricants.
Patent GB-1512403-A (GB)
Title: Deposition of metal patterns
IPC: G03C5/58
Filed: 1975-05-02
Abstract: 1512403 Photographic processes producing metal images WESTERN ELECTRIC CO Inc 2 May 1975 [2 May 1974] 18327/75 Heading G2C A method of producing positive metal images comprises applying to a support either (a) a colloidal solution of a hydrous oxide (defined as water-insoluble oxides, water-insoluble hydroxides and mixtures thereof, oxides and hydroxides containing water and hydrous hydrates) of Ni, Mn, U or Mo or a mixture thereof or (b) a non-colloidal solution of pH 0-4 containing a dissolved salt of a tungstate or molybdate, imagewise exposing and then treating the material with an activating solution which is reduced at the non-exposed areas to form a catalytic image and then physically developing to produce a metal image. The specified activating solution is PdCl 2  and the metal image is preferably Cu or Ni. The exemplified solutions are colloidal Ni, Mn, U or Mo hydrous oxide, and non- colloidal blue solutions of tungstates and molybdates.
Patent GB-1407528-A (GB)
Title: Radiography
IPC: G01N23/06
Filed: 1973-04-17
Abstract: 1407528 X-ray apparatus EMI Ltd 24 April 1974 [17 April 1973] 18346/73 Addition to 1283915 Heading H5R A method of examining a body by means of X or gamma rays in accordance with any of claims 1 to 11 of Specification 1,283,915 includes as a modification determining a respective weighting factor applicable to each intersection of a beam path and an element indicative of the extent to which the path overlaps the element, the weighting factor being unity if the path overlaps more than half the area of the element (and also, preferably, if it overlaps exactly half) and zero if the overlap is less than half the area of the element, and using the output signals referred to in the claims of the above prior Specification and the above weighting factors in the process of approximation defined in the said claims.
Patent GB-357178-A (GB)
Title: Improvements in the production of sulphur from sulphur dioxide
IPC: C01B17/04
Filed: 1930-06-16
Abstract: <PICT:0357178/III/1> In the production of sulphur from sulphur dioxide by reduction with carbon at a high temperature, low-temperature coke (semi-coke) is used as the reducing agent, the result being that a lower reaction temperature of 600-800 DEG  C. is rendered feasible or, if a higher reaction temperature of 1000 DEG C. is employed, the output is increased.  The heat of the reduced gases may be used to produce further quantities of semi-coke, any deleterious action on the sulphur of the tarry vapours so produced being avoided by passing the gases through a bed of highly heated coke substantially free from volatile matter.  Reduction may be effected by passing the gas to be reduced through a bed of lump semi-coke heated externally, by the alternate passage of air and gas through the coke or a mixture of the gas and air may be passed through the coke.  Alternatively, granular or pulverized semi-coke may be employed, the gas being so forced through as to produce turbulence, or the coke may be dispersed in the gas and the mixture heated.  As shown, two vertical retorts D, D<1> communicating at the top are charged with semi-coke from the top, a charge of coal being placed above this in each retort.  Both retorts are raised to say 1000 DEG  C. by air admitted through ports B, C, A mixture of air and gas containing sulphur chloride is then blown through the port B, the resultant gases passing through both layers of coal and the other layer of coke and out at the port C, so much air being employed as will render the reaction in the first bed exothermic.  Both layers of coal are thereby converted to semi-coke and the tarry vapours produced are absorbed in the second layer of coke, the passage of gas being reversed after the temperature of this layer has fallen to say 800 DEG  C.; an example is furnished in connection with this form of apparatus.  In a second example, only one column of semi-coke covered by coal is employed the gases and tarry vapours being carried direct to a retort containing high-temperature coke maintained at a temperature of 1100-1200 DEG  C. by preheated secondary air.  Sulphur may be separated from the gases by the methods described in Specifications 354,207 and 355,832.
Patent GB-1136628-A (GB)
Title: Tire shaping apparatus
IPC: B29D30/36
Filed: 1966-04-27
Abstract: 1,136,628. Shaping pneumatic tyres. GENERAL TIRE & RUBBER CO. 27 April, 1966 [14 May, 1965], No. 18438/66. Heading B7C. Apparatus for shaping to toroidal form a pre-formed flat-band carcass 100 comprises relatively axially movable end-heads 101, 103, each including an inflatable annulus 147 for urging radially outwardly into engagement with a tyre bead an annular series of segments 135 overlain by an elastomeric sealing strip 149, means being provided for introducing pressurized gas into the space formed by the end-heads and the carcass. Each series of segments is constrained radially inwardly by two garter springs 141. The carcass may be expanded into contact with a tread and breaker held by a transfer ring (5), (Fig. 1, not shown), or a tread and breaker may be manually applied after carcass expansion. Reference has been directed by the Comptroller to Specification 932,792.
Patent GB-757950-A (GB)
Title: New derivatives of adrenosterone and their method of preparation
IPC: C07J1/00
Filed: 1954-06-23
Abstract: The invention comprises 11b -hydroxy-17a -ethynyltestosterone and 11-keto-17a -ethynyltestosterone, and their preparation by protecting the 3-keto group of adrenosterone with a group stable to alkali, but readily hydrolysable in acid (e.g. enol ether, thio-enol ether, cyclic ketal, hemi-mercaptal, cyclic mercaptal, or enamine) and treating this derivative by a known method, preferably with acetylene in the presence of alcoholates or amides of alkali or alkaline earth metals, or with an ethynyl magnesium halide, to form the 17a -ethynyl derivative, which is then hydrolysed with acid, or the 11-keto group selectively reduced with a double hydride, e.g. lithium aluminium hydride, or sodium borohydride, and the product then hydrolysed as before.  In examples (1) the 3-ethyl enol ether of adrenosterone (prepared by boiling adrenosterone with ethyl orthoformate in ethanol containing H2SO4, adding aqueous triethylamine, stirring and cooling) dissolved in dry benzene and ether is treated with potassium in tert. amyl alcohol and acetylene, and the crude product hydrolysed with ethanolic HCl giving 11 - keto - 17a  - ethynyl testosterone; (2) the crude product of (1) is refluxed in ether with lithium aluminium hydride, the mixture decomposed with water and acetic acid, and hydrolysed as in (1) giving 11b -hydroxy-17a -ethynyltestosterone; (3) 11-keto-17a -ethynyl testosterone is converted into its 3-ethyl enol ether with ethyl orthoformate, and then reduced and hydrolysed as in (2) to 11b -hydroxy-17a -ethynyl testosterone.
Patent GB-1217651-A (GB)
Title: A reamer having an interchangeable cutter
IPC: B23D77/04
Filed: 1969-04-10
Abstract: 1,217,651. Reamers. MAPAL DR. KRESS K.G. 10 April, 1969 [10 April, 1968], No. 18476/69. Heading B3C. A reamer comprises a cutting head 1, Figs. 1-3, a cutter 3 located in a groove 2 in the head, an arcuate slot 5 leading to the groove, screws 7 for clamping the cutter, and wedges 9 for adjusting the position of the cutter. In a modification, a second slot 13, Fig. 5, is provided. In a further modification an annular cutting head 1, Fig. 7, has two radial slots 11 in place of slot 13.
Patent GB-185570-A (GB)
Title: Improvements in and relating to stop-valves for steam and like fluids under pressure
IPC: F16K3/18
Filed: 1921-11-22
Abstract: 185,570. Kinchin, J. F. Nov. 22, 1921. Wedging or jamming.-In a stop-valve having a pair of parallel sliding gates which engage annular chest rings in the body of the valve, an annular wedge member is provided which is flexibly mounted in the casing so that the wedging action is distributed evenly between the gates. The annular wedge member t is slightly tapered the greatest thickness being at the bottom, the inner faces of each gate being correspondingly tapered. A lug u on either side of the upper edge of the wedge member is formed with a curved upper edge, and is located in a recess v in the casing, and is kept in position by the T-head w<1> of a stud w. A further lug x is formed with a spherical head x<1> which rests freely in a cylindrical recess y at the bottom of the casing.
Patent GB-613397-A (GB)
Title: Improvements relating to sliding windows
IPC: B60J10/00
Filed: 1946-06-20
Abstract: 613,397. Windows. CHESTON, A. S., EDMONDS, E. C., CHESTON, B., and OLDHAM, F. A. M. June 20, 1946, No. 18537. [Class 20(iii)] In a sliding window, particularly for vehicles, wherein fittings secured to the window edges are guided on stationary guides 4, the guide fitting at one or both edges is made in two relatively adjustable parts which may be locked in their adjusted position whereby the effective width of the framed window may be varied somewhat, e.g. to take up " play resulting from the wearing of the stationary guides. One part 5 of the fitting is secured to the window edge and is provided with a returned flange 6 spaced therefrom and engaging a double flange 10 projecting from the other part 8. The flange 10 is slotted at 11 and a bolt 12 secured to the part 5 passes through the slot so that by slackening the nut 15 the part 8 may be moved away from or closer to the part 5 where it may be locked by re-tightening the nut.
Patent GB-837633-A (GB)
Title: Improvements in or relating to electric attenuators
Inventor: PEACH EDMUND REGINALD
IPC: H03H7/24
Filed: 1957-06-12
Abstract: 837,633. Regulating switches. PYE Ltd. June 12, 1958 [June 12, 1957], No. 18537/58. Class 38 (5). [Also in Group XXXVI] A switched variable attenuator (see Group XXXVI) has mounted in it an insulating member which carries the fixed switch contacts, each of which is separated from the adjacent contact by a screening member. Each of these contacts is connected to an associated shunt resistor and series resistors are connected between the contacts on the opposite side of the insulating member from the shunt resistors. In the embodiment described an attenuator has a metal body 1 in the form of an annulus which is provided with five cavities 2 arranged about the central axis at equal radial distances. An annular insulating plate 3 positioned over the open end of the cavities is provided with contacts 4 and screening segments 5 which may be palladium or rhodium plates, and which are formed by a printed circuit technique. As shown, there are five contacts and six screening sections, the contacts being positioned over the open ends of the cavities. The screening sections 5 are connected to the body of the attenuator by screws 6, the heads of which are in the form of pillars to support the cover 25. The movable contact 10 of the switch is carried by a switch blade 11 made of a hard alloy such as gold alloy, which is held by a screw 13 the head of which forms a contact in frictional engagement with a spring finger 14 leading to the output socket 15, which is mounted in a housing on the side of the case. Indexing of the rotor is achieved by a spring-loaded ball 19 which engages with indents 22 in the rotor. Other spring-loaded balls (not shown) also engage with the indent in the end 16a of the rotor to balance out the thrust.
Patent GB-118961-A (GB)
Title: Improvements in the Driving Wheels, of Horsfall Forging Machines, with which the Forging Mechanism is Thrown Into and Out of Engagement.
IPC: F16H55/36
Filed: 1917-12-14
Abstract: 118,961. Etchells & Son, D., and Cotterell, W. Dec. 14, 1917. Clutches, claw.-Relates to the actuating- mechanism of " Horsfall " forging-machines in which a spring-pressed pin is forced into a curved slot b<1> in the boss of a fly-wheel or Pulley, the driving end of the slot being formed by a bolthead f, and consists in making the boss B of the fly-wheel or pulley of steel and separate from the body to which it is bolted. The loose pulley D is mounted on a sleeve b<2> carried by the boss.
Patent GB-204778-A (GB)
Title: Improvements in or connected with bayonet holders for electric incandescent lamps
IPC: H01R33/46
Filed: 1922-07-06
Abstract: 204,778. Rainsford, C. F. July 6, 1922. Holders.-In a bavonet-slot lamp-holder in which the bayonet pins M are pressed into the valleys of the slots when the two parts of the holder C, J are drawn together for locking the lamp, as by means of a screw ring I, the pressure which resists removal of the lamp until the parts C, J are separated is provided by a central rib G on the insulating block F, which bears on the top of the lamp, cap B. The rib preferably extends across the block F between the contacts II. The ring I may have a smooth outer surface so that it may not be readily moved after being tightly screwed home, and it may, in addition, be provided with a screw or other locking device. The Specification also describes a two-part holder, one portion of which, corresponding to the part C, is split and provided with tongues at its upper end engaging tongues in the portion corresponding to the part J. The two portions are secured together by pressing the split one into the other so that the two sets of tongues engage.
Patent GB-164975-A (GB)
Title: Improvements in the compressor units of diesel engine systems
IPC: F02B33/00
Filed: 1920-07-05
Abstract: 164,975. Blache, H. H. July 5, 1920. Cylinders receiving liquid fuel. - In compressors for supplying injection air to Diesel engines comprising a smaller Diesel engine and a multiple stage pump i of sufficient capacity to supply both its own injection air and the injection air to the main engines, the compression is regulated by controlling the clearance of all the pump cylinders simultaneously by valves m, n, worked by a hand-wheel p.
Patent GB-1043347-A (GB)
Title: 17,21-orthoesters of steroids
Inventor: ELKS JOSEPH
IPC: C07J75/00
Filed: 1963-05-10
Abstract: Novel steroids of the formula <FORM:1043347/C2/1> (wherein X is fluorine or chlorine; R is C1- 4 alkyl; and R1 is methyl or ethyl) are prepared by reacting the corresponding free 17a ,21-dihydroxy-steroids with the appropriate orthoester R.C(OR1)3. The products can exist in two stereoisomeric forms.  9a  - Chloro - 11b ,17a ,21 - trihydroxy - 16b  - methylpregna - 1,4 - diene - 3,20 - dione is prepared from the 9b ,11b -epoxide and hydrochloric acid.ALSO:Pharmaceutical compositions for use in the topical treatment of inflammation comprise steroids of the formula <FORM:1043347/A5-A6/1> (wherein X is fluorine or chlorine; R is C1-4 alkyl; and R1 is methyl or ethyl) and a topical vehicle.  They may also contain preservative or bacteriostatic agents e.g. methyl hydroxy benzoate, propyl hydroxy benzoate, chlorocresol and benzalkonium chlorides, antimicrobial agents and antibiotics.  They may take the form of ointments, lotions, creams, powders, drops, suppositories, retention enemas, chewable or suckable tablets or pellets, or aerosols, and may also contain thickening, gelling, emulsifying, dispersing, suspending, colouring or solubilizing agents, and perfumes.
Patent GB-1523095-A (GB)
Title: Method for the optical measurement of distances
IPC: G01B11/02
Filed: 1977-05-04
Abstract: 1523095 Measuring dimensions COMMISSARIAT A L'ENERGIE ATOMIQUE 4 May 1977 [7 May 1976] 18708/77 Heading G1A To determine the width of an object, an image of it is formed by a microscope, and the image is scanned by a camera so as to form a visual display on a screen; two parallel lines are superimposed on the screen and are moved until they coincide with opposite edges of the displayed object. The circuitry for generating and moving the lines also produces numbers representing their position, and these numbers are used to compute the line separation, and hence the object width. If desired, each line may be replaced by a pair of lines separated by the permissible tolerance on the width of the object, so that the operator can see if the object is within desired limits or not. Various ways of processing the number associated with the lines are disclosed; for example the number for each line can be entered into a respective counter, each counter then being counted down to zero and the time between the moments that the counters reach zero represents separation, Fig. 2 (not shown). Alternatively, each number may be stored and compared with an increasing count, the difference in time between the moments at which that count equals the numbers being representative of the separations, Fig. 3 (not shown). Suitable time measuring circuitry is given, Fig. 4 (not shown), as well as a four line embodiment for tolerance display, Fig. 5 (not shown).
Patent GB-1444753-A (GB)
Title: Rotary actuators suitable for bladed rotors
IPC: F01D7/00
Filed: 1973-04-18
Abstract: 1444753 Rotary vane-type actuators DOWTY ROTOL Ltd 26 March 1974 [18 April 1973] 18709/73 Heading F1F A rotary vane-type actuator for use with flow varying bladed rotors comprises two vaned coaxial components 15, 16 which both move in one of two pairs of mutually opposed directions when fluidpressure is supplied to the working chambers, the component 15 having a shaft extension 18 and the component 16 comprising parts 22, 23 bolted together, there being abutment means 56 provided on a member 20 keyed to shaft extension 18 and abutment means 56 provided on an annular piston 44 which is rotably fixed, but axially movable, relative to a member 28 fixed to part 22 of component 16, such that fluid-pressure normally holds piston 44 in a position such that the abutment means 55, 56 are disengaged so that the vaned component can freely operate in either of their mutually opposed pairs of directions, and such that, upon fluidpressure failure, the abutment means are urged  together so that relative rotational movement is only possible in one direction. The piston 44 is rotatably keyed to member 28 by rows of balls 46 located in respective pairs of opposed channels in piston 44 and member 28, this arrangement permitting axial movement of piston relative to member 28. Normally, fluid-pressure is supplied via channels 54 to a space 53 between lands 48, 49 of piston 44, the differential pressure urging the piston 44 to the left, Fig. 1, to maintain the abutments out of engagement, and simultaneously urge balls 42 radially inwardly along a frusto-conical surface 43 of piston 44. Upon fluid-pressure failure, balls 42 act on frusto-conical surface 43 due to the centrifugal force and move piston 44 to the right to engage the abutment means 55, 56. These abutment means comprise a pair of rotary ratchet teeth which prevent relative rotary movement in one direction but not the other. When used on a flow varying bladed rotor, the relative rotary movement prevented is that which would produce pitchfiring so that pitch-coarsening is still possible to better the blades and give the least drag effect on the associated aircraft.
Patent GB-769330-A (GB)
Title: Improvements in and relating to apparatus for filling containers such as bottles with liquids
Inventor: MIDGLEY PERCY
IPC: B67C3/26
Filed: 1954-06-25
Abstract: 769,330. Bottling. MEYER LIQUID, Ltd., [formerly LIQUID CARBONIC CO., Ltd.]. May 16, 1955 [June 25, 1954], No. 18715/54. Class 125(2). In counterpressure bottling apparatus as described in Specifications 524,207, 540,762 and 541,200, foaming is minimized by snifting the bottle at intervals during the filling through the counterpressure pipes. The counterpressure valve consists of a rotating plate 18 having a port 23 connected to each counterpressure pipe 17 and a stationary plate 19. The latter has three arcuate grooves 22 communicating through ports 21 with the lower pressure space 15 of the check tank 6 and one arcuate groove 24 communicating with the higher pressure space 16 of the tank through port 25. Between the grooves 22, 24, plate 19 has ports 26 communicating with the atmosphere through passages 27, 28.