baber/WOPTO huggingface dataset:
Patent GB-593670-A (GB)
Title: Improvements in or relating to pressure containers with a safety closure between thecontainer body and the cover
IPC: F17C13/06
Filed: 1945-06-21
Abstract: 593,670. Cooking vessels. NIETH, J. June 21, 1945, No. 15866. Convention date, June 23, 1944. [Class 66] [Also in Groups XVIII and XXIX] A rubber packing ring 3 under the rim of a cooking vessel 5 is compressed to seal the vessel as the internal pressure increases, by a U-section segmental ring 2 encircling the flange of the lid &c. and forced upwardly by the internal pressure on the lid. A ring 4 locks the ring 2 in position. A safety-valve 6 weighted by a knob 7 can be held open by a pin 10 &c. moved by turning the knob 7.
Patent GB-112010-A (GB)
Title: Improvements in Method for Treating Petroleum and other Hydrocarbons to Produce Hydrocarbons having Lower Boiling Points.
Inventor: DUBBS CARBON P
IPC: C10G9/00
Filed: 1917-10-31
Abstract: 112,010. Dubbs, C. P. Nov. 27, 1916, [Convention date]. Hydrocarbons, cracking; progressive evaporators.-In treating petroleum and other hydrocarbons for the production of gasoline and other hydrocarbons of low boiling-point, the oil is passed through a series of stills maintained at successively increased temperatures, and the resulting vapours are passed back through the oil in the preceding stills so as to be subjected to successively lower temperatures. The operation is effected under a pressure of 50-1000 lb. per sq. in. The temnerature in the first still is 200-500‹ F, and in the last still is 500-2000‹ F. The apparatus comprises stills A<1>, A<2>, &c. heated by steam coils supplied with steam from superheaters C', C<2>. The vapours from the first still A<1> pass through a reflux condenser B<1> and escape through a pressure valve F' to the condenser. The vapours from the still A<2> pass through a reflux condenser B<2> and are forced by a pump X<5> through pipes H<5>, H into the base of the preceding still A<1>. The vapours enter the still A<1> by a perforated pipe, and bubble up through the oil, undergoing partial condensation. The oil, before entering the first still A<1>, is preheated by means of the vapours from the plant and the steam from the heaters, and by passage through the reflux condensers B<1>, B<2>, &c. The plant is so arranged that the temperature of each still is under separate control, and each of the stills and reflux condensers may be cut out.
Patent GB-1004670-A (GB)
Title: Penicillins
Inventor: BRAIN EDWARD GEORGE
IPC: C07D499/72
Filed: 1963-04-23
Abstract: The invention relates to penicillins of formula <FORM:1004670/C2/1> and non-toxic salts thereof, where R is alkyl, phenyl, phenyl substituted by chlorine, hydroxy, alkoxy or amino or a heterocyclic group. Specified are a -carboxybenzylpenicillin, a -carboxy - 3 - thienylmethyl penicillin, a  - carboxy-p - chlorobenzyl penicillin, a - carboxy - p-methoxypenicillin, a  - carboxy - m - hydroxy penicillin, a  - carboxy - p - aminobenzyl penicillin and a  - carboxy - p - benzyloxycarbonylaminobenzyl penicillin.  Typical salts are the alkali metal, aluminium, ammonium and substituted ammonium salts.  The penicillins are produced by coupling 6-amino-penicillanic acid, or a salt thereof, with a reactive derivative of an acid of general formula <FORM:1004670/C2/2> where R has the above meaning and X is hydroxy, chlorine or OR1 where R1 is alkyl, aryl, benzyl or substituted benzyl, which is subsequently removed.  Removal of R1 is effected by catalytic hydrogenation, where R1 is aryl, benzyl or substituted benzyl.  Decarboxylated penicillin analogues formed as impurities may be removed by (a) chromatography, (b) recrystallisation from solvents, (3) degradation to 6-aminopenicillanic acid by means of amidase enzymes.  Monobenzyl phenylmalonate is prepared by treating phenylmalonic acid and benzyl alcohol with hydrogen chloride.  Monobenzyl phenylmalonate may be converted to the acid chloride by treatment with thionyl chloride. Acid chlorides of phenylmalonic acid, n-butylmalonic acid, 3 - thienylmalonic acid, p - chlorophenylmalonic acid, p-methoxyphenylmalonic acid, p-benzyloxycarbonyl - aminophenyl malonic acid, a  - benzyloxycarbonyl - p - benzyloxycarbonylaminophenylacetic acid and m-benzyloxycarbonyloxy phenylmalonic acid are likewise prepared.  p - Aminophenylmalonic acid and m-hydroxyphenylmalonic acid are prepared by treating, respectively, p-aminophenylacetic acid and m-hydroxyphenylacetic acid with isopropyl magnesium bromide followed by solid carbon dioxide, and are then treated with benzyl chloroformate to give, respectively, p - benzyloxycarbonylaminophenylmalonic acid and m-benzyloxycarbonyloxyphenylmalonic acid.  The mono-acid chloride of the latter is reacted with benzyl alcohol to give a -benzyloxycarbonyl-p-benzyloxycarbonylaminophenylacetic acid.  The penicillins have antibacterial properties and may be used for treating infections of men and animals e.g. mastitis in cattle. They may be used as nutritional supplements in animal feeds.
Patent GB-181707-A (GB)
Title: Improvements in tyres for vehicle wheels
IPC: B60C23/18
Filed: 1922-06-08
Abstract: 181,707. Develay, M. N. A. June 14, 1921, [Convention date]. Air tubes and chambers; jackets and covers. -The tread portion of a tyre cover is formed with an air-space 8 which is closed by a diaphragm 1, Fig. 1, formed integrally with the cover, or a flap 13, Fig. 9, secured by one edge to the cover, or by a loose band 19, Fig. 12, the edges of which are pressed against the cover on inflation of the air-tube 7. The diaphragm 1 &c. or the inner surface of the tyre tread, or both, may be formed with buffer-ribs 6. The air-space 8 may be open to the atmosphere through vents 12. A separately-formed band such as 19, Fig. 12, may be stitched to the side walls of an ordinary cover.
Patent GB-1190074-A (GB)
Title: Improvements relating to Blood Pressure Measuring Apparatus
IPC: A61B8/00
Filed: 1967-04-06
Abstract: 1,190,074. Measuring blood pressure. SOUTHWEST RESEARCH INSTITUTE. 6 April, 1967 [19 April, 1966], No. 15950/67. Heading A5K. [Also in Division H4] Blood pressure measuring apparatus comprises a conventional inflatable cuff 14 coupled to an indicator 33 of the pressure therein and an ultrasonic transducer 16 which in use is located against the body beneath the cuff, the transducer having a central portion (18) for directing ultrasonic energy to the artery under test and an outer portion (22) for receiving reflected ultrasonic energy and connected with means 31, 32, 33 for producing output signals in response to changes of frequency of the transmitted energy on reflection and indicative of arterial wall motion as the artery opens and closes under the occluding pressure of the cuff. In use as the pressure in the cuff falls to and below systolic pressure the antery will open for longer periods in each progressive heart cycle until at cuff pressures below diastolic pressure it remains open. The wall motion of the artery as it opens or closes varies the frequency of the reflected energy in accordance with the Doppler effect. Electrical pulses created by the changes in frequency are utilised to control the brightness of the horizontal shift of an oscilloscope 33. The vertical shift is controlled by the cuff pressure and the time base is synchronised with ventioular systole of an E.C.G. signal from the patient. With falling cuff pressure the intervals between the opening and closing events of the artery increase so that finger points displayed on the oscilloscope collectively trace out a curve representing blood pressure variations over one heart cycle.
Patent GB-770386-A (GB)
Title: Improvements in or relating to recovery of durene
IPC: B01D9/00
Filed: 1955-06-03
Abstract: Durene is recovered from a durene-containing hydrocarbon fraction by mixing the fraction with symetrical tetrachloroethane in an amount greater than 10 per cent by volume, chilling the mixture to form a co-crystallized solid of durene and tetrachloroethane, separating the co-crystallized solid from mother liquor and recovering durene from the co-crystallized solid.  A fraction boiling between 300 DEG  and 450 DEG F. containing aromatic hydrocarbons having 9 to 11 carbon atoms in the molecule, is distilled to obtain a fraction boiling in the range 380 DEG  to 390 DEG F. containing durene, which is mixed with tetrachloroethane, preferably 20 to 50 per cent by volume of the durene-containing fraction.  The mixture is chilled to between -20 DEG F. to -60 DEG F., passed to a holding tank and then to a centrifuge filter where a cake of crystallized solids and a filtrate are obtained.  The filtrate is distilled to recover tetrachloroethane, which is recycled.  The cake of crystallized solids is melted and distilled to obtain the durene and the tetrachloroethane is recycled.
Patent GB-870310-A (GB)
Title: Preparation of c aldehyde
Filed: 1959-05-11
Abstract: An improved process for producing C14 aldehyde by mixing b -ionone and an alkyl chloroacetate, the alkyl radical of which contains 1-4 carbon atoms, during the addition of small portions of dry, alcohol-free alkali metal alkoxide at a temperature below 10 DEG C., subsequently treating the reaction mixture with an alcoholic alkali hydroxide at a temperature below 10 DEG C., acidifying and decarboxylating the saponified glycide ester and recovering the C14 aldehyde, is characterised in that the b -ionone and alkyl chloroacetate are mixed in the presence of one or more essentially anhydrous diluents i.e. one or more of dimethyl formamide, pyridine, dimethyl acetamide N-ethyl-acetamide and picoline.  Examples are given.
Patent GB-680257-A (GB)
Title: Polytetrafluoroethylene coating compositions
IPC: H01T13/38
Filed: 1950-06-28
Abstract: A coating composition comprises an aqueous suspensoid of a polymer or copolymer of tetrafluoroethylene and 1 to 90 per cent by weight of chromic acid based on the combined chromic acid and polymer content; specified copolymers are those of tetrafluoroethylene with ethylene and chlorotrifluoroethylene. The composition may also contain zinc phosphate and dispersing agents such as the sodium salt of sulphated long chain alcohols. The compositions are applied to metal, glass, and ceramic, and the film of particles of tetrafluoroethylene polymer fused by heating.ALSO:Metal reaction vessels exposed to corrosive substances at high temperatures, and glass or metal acid containers, are coated with polytetrafluoroethylene or copolymers of tetrafluoroethylene with other polymerizable materials such as ethylene and chlorotrifluoroethylene.ALSO:Anti-sticking metal moulds for rubber products are coated with a composition comprising an aqueous suspensoid of polytetrafluoroethylene or copolymers of tetrafluoroethylene with other polymerizable materials such as ethylene and chlorotrifluoroethylene, and 1-9 per cent by weight of chromic acid.ALSO:Greaseless bread pans, muffin tins, and cookie sheets are manufactured by coating with polytetrafluoroethylene, or copolymers of tetrafluoroethylene with other polymerizable materials such as ethylene and chlorotrifluoroethylene.
Patent GB-1169387-A (GB)
Title: Cement Clinker Analysis.
IPC: G01N23/207
Filed: 1967-04-10
Abstract: 1,169,387. X-ray diffraction analysis of cement clinker. INTERNATIONAL BUSINESS MACHINES CORP. April 10, 1967 [April 11, 1966], No. 16253/67. Heading G1A. Cement clinker is analyzed by an external standard X-ray diffraction method and the percentages P of the major components is determined from the equation P = mH + b where H is the height of a diffraction line characteristic of the phase. For (CaO) 3 SiO 2 , the diffraction angle, 2# is 30À1 degrees, m = 2À85 and b = -15À5. For (CaO) 2 SiO 2 , 2# =31À1 degrees, m = 4À0 and b = -16À0. For (CaO) 3 Al 2 O 3 , 2# = 33À2 degrees, m = 0À1167 and b = -1À17. For (CaO) 4 Al 2 O 3  Fe 2 O 3 , 2# = 33À8 degrees, m = 0À4225 and b = -3À85. The clinker is ground to 200 mesh and mounted alongside a silicon standard powder in the sample holder of a conventional X-ray diffractometer. The diffractometer is scanned through diffraction angles 35 degrees - 29 degrees to measure the characteristic lines and then scanned on to 27 degrees to measure the 28À1 degrees line of the external standard. If the intensity of the standard line differs from a preset value, the values of the measured lines is adjusted accordingly. The results of the analysis may be used to control the operation of the kiln producing the clinker.
Patent GB-702317-A (GB)
Title: Improvements relating to injection moulding and like machines
IPC: B29C45/58
Filed: 1952-06-27
Abstract: 702,317. Injection-moulding machines. ARNOLD, J. C. (Pyro Plastics Corporation). June 27, 1952, No. 16281/52. Class 87 (2) A spreader or " torpedo " for fitting in the injection cylinder. bore 4 of an injection moulding machine comprises a head 12 and shank 8, the head containing converging passages 19 which lead from.the junction 16 of the head and shank to a central discharge opening 20 coaxial with the shank, and an electric heating element 21 fitted in a bore 22 alongside the opening and passages and extending-into the shank. The object is to eliminate any joint in which plastic material may lodge and to prevent all contact between plastic material and the heating element, and the head is therefore formed with a conical taper which wedges into a corresponding taper 6 in the mouth of the cylinder bore, being tightened by screws 13 when the cylinder is heated, giving a shrink fit between the spreader head and the cylinder. The inner end of the shank, which has a painted nose 10, is located concentrically by streamlined guide ribs 11. Between the ribs 11 and the head 12 is an annular space 9 which narrows circumferentially towards the passages 19. The bore 22 enters at an angle, and there is another, smaller, bore 26, also at an angle, for a thermocouple to control the heater. The leads for the heater and thermocouple are disposed in slots 23, 27 in the end of the head which is fitted with a cover 28. Electric heating jackets 2, 3 also surround the cylinder. Provision for the removal of the spreader is made by threaded openings 30 in the head for jack screws to bear against the end of the cylinder and so force out the spreader.
Patent GB-318656-A (GB)
Title: Improvements in or relating to containers for smokers' requisites
IPC: A24F15/18
Filed: 1928-06-05
Abstract: 318,656. Belcher, W. June 5, 1928. Boxes formed of separate bodies combined side by side; partitioned boxes.- A container a for smokers' requisites, e.g. cigarettes, has a receptacle d for a scent pad e hinged at d<1> to the case, the scent receptacle being separated from the main body of the case by a wire gauze. Auxiliary containers g, h for cigarette holder and matches respectively are provided, the receptacles a, g, h being closed by lids b, j, i respectively. In a modified form one of the auxiliary containers may be in two halves hinged together at the side remote from the receptacle a, one of the halves being fixed to the receptacle while the other is secured by a latch so as to constitute a lid.
Patent GB-915505-A (GB)
Title: Improved clutch or brake disc
IPC: F16D13/64
Filed: 1961-05-05
Abstract: 915,505. Friction clutches; change-speed gear. FORD MOTOR CO. Ltd. May 5, 1961 [June 15, 1960], No. 16328/61. Class 80 (2). [Also in Group XXXIV] A friction disc which may be used in a brake but which in the form shown is used in a clutch, comprises two recessed housing members 22, 24 secured together and filled with a metal alloy having a low-temperature melting-point, heat generated when the clutch &c. slips causing the alloy to melt, the latent heat of fusion thereof being absorbed and thus preventing excessive temperature rise of the disc. The recessed housing members 22, 24 may be made from copper, and secured together by rivets 38, the seams between the two members being closed by silver solder. The alloy 40 is of the eutectic type, e.g. lead and tin, silver and copper, copper and lead or tin. The outer periphery of the housing members is riveted to a ring 18. In the form shown, several discs 22, 24 are in splined engagement with a clutch drum 17 and are interleaved with plane discs 14 splined to a driving clutch sleeve 11. The clutch is engaged when liquid under pressure is admitted to the housing to bias a ring-shaped piston 50 leftwards against the bias of a spring 13. Planet pinions 25 carried by a driven shaft 15 mesh a ring gear 19 fast with the clutch sleeve 11 and a driving- shaft 10, and also mesh a sun gear 21 fast with the clutch drum 17. When the clutch 14, 22 &c. is engaged, the gear rotates solidly. By releasing the clutch and instead engaging a band brake (not shown) to station the clutch drum 17, the sun gear 21 is held stationary, and a reduced ratio drive is obtained between the driving and driven shafts 10, 15. The gearing may be used in an automatic transmission for a motor car, cushioning means (not shown) being provided to delay disengagement of the clutch until brake engagement has commenced, and vice versa.
Patent GB-861680-A (GB)
Title: Improvements in or relating to digital function evaluators
Inventor: FROGGATT ROBERT JUSTIN
IPC: G06F9/26
Filed: 1956-05-26
Abstract: 861,680. Digital electric calculating apparatus. ELECTRIC & MUSICAL INDUSTRIES Ltd. May 17,1957 [May 26, 1956], No. 16363/56. Class 106 (1). A digital function generator comprises a logical element, means for storing input binary signals and binary signals derived from the logical element, a plurality of gates, and means for selectively controlling the gates to enable the evaluation of a plurality of logical functions. As described, a logical unit LU, Fig. 3, expressing " incompatibility," gives out a positive result signal for each input excepting when two positive input signals occur simultaneously. The unit is connected in a network comprising eighteen gates G1 ... G18 and a series of digit stores 16 ... 20 for storing the initial input signals a and b and subsequent result signals obtained from the logical unit. After each input event a series of cycles occur in the network each involving a particular setting of the gates G1 ... G18 under control of a programme unit which determines the sources of the two signals to be fed to the logical unit and the destination of the result signal. The programme unit comprises several columns of magnetic storage cores 6, Fig. 2, selectively laced by wires 5 in accordance with prearranged logical programmes. A binary series-mode programme signal arriving at an input point 2 is decoded by a tree circuit 1 so as to energize one of the lines 5 and store the selected programme. The columns of cores 5 are read out in succession under control of a shifting register 4, the settings being transferred column-by-column via amplifiers 8 to further cores 9. After each transfer a pulse from the shifting register passes along a delay line 11 giving a read-out pulse to each of the conductors 10 in rapid sequence. Each of these pulses clears any of the cores 9 which have been set in that column so as to initiate a pattern of signals for controlling via amplifiers 13 the gates Gl ... G18 during one cycle. The frequency of these cycles may be of the order of 1 Mc/s., in which case the pulses from the shifting register would be at the rate of 200 kc/s. and the digit rate of signals entering at a and b, Fig. 3, could be (say) 100 kc/s.
Patent GB-420174-A (GB)
Title: Improvements in or relating to wheels and the manufacture thereof
IPC: B21D53/26
Filed: 1933-06-07
Abstract: 420,174. Making wheels. BUDD WHEEL CO., 2500, Hunting Park Avenue, Philadelphia, U.S.A.-(Assignees of Hight, F. R. ; 5114, Somerset Road, Detroit, Michigan, U.S.A.) June 7, 1933, Nos. 16390 and 16391. Convention dates, June 7, 1932 and Feb. 16, 1933. [Classes 83 (ii) and 83 (iv)] Cupping; stamping and forging dies.-An artillery wheel spider, having the radial spoke portions and the nave joined together, is formed by a method in which the spokes are initially stamped to a depth less than that in the final product, marginally projecting metal being left which is subsequently turned up to complete the spoke depth. A disc is cupped between dies in two stages to produce a form comprising spoke portions 12, Fig. 7, web portions 14, and a central tapered portion 15. The webs, with the exception of lateral strips 17, Fig. 10, are removed and a central aperture 18 is formed. The spokes are completed by bending up the marginal strips 17 to complete the full depth, the lower edge also being curved over, and ornamentation &c. formed. A completed wheel comprises the stamping 12, 15, Fig. 14, secured by welding and riveting to a rim 22, reinforced by a member 24, and ornamented by a moulding 28. In the manufacture of the halves 31, 32, Fig. 15, of a spider, which are subsequently welded together, an annular member is cut away to provide radial members corresponding to the spokes, the blank then being shaped by steps similar to those above described. In a further modification, an annular blank is cupped, and the webs are partly cut away, to produce a blank of the form shown in Fig. 33 having marginal portions 116 which are bent up to complete the spoke depth, the edges then being trimmed. The blank is annealed at one stage in the operations. The disc is finally shaped between dies 122, 124, Fig. 43, the lower die being shaped to receive the finished blank and the upper die co-operating therewith and having portions 125 to upset and thicken the ends of the spokes 119, Fig. 41. Specification 420,203 is referred to.
Patent GB-1529246-A (GB)
Title: Demountably self-propelled crane transport assembly
IPC: B66C23/62
Filed: 1976-04-22
Abstract: 1529246 Endless - track vehicles MANITOWOC CO Inc 22 April 1976 [24 April 1975] 16408/76 Heading B7H In a demountable self-propelled transport assembly for a mobile crane, transverse beams 16 connected to the front and rear of a central body 15 have box-section ends received in openings 105 in side frames 18 supported by endless tracks 21, and hydraulic jacks 115 are mounted on the beams 16 for relieving the load imposed by the beams on the frames 18 so that the frames can be moved sideways on the beams by hydraulic cylinders 116 for varying the spacing of the endless tracks 21 or for detaching the frames from the beams. Side plates 106, 107 on the beams 16 have apertures 108, 109 formed therein at spaced locations, and the frames 18 have inwardly projecting mounting brackets 110 which fit between the plates 106, 107. Mounting pins 111 for fitting into the apertures 108 or 109 and into openings 112 in the brackets 110 are inserted and withdrawn by turnbuckle or ratchet assemblies 113. The beams 16 are detachably connected to the body 15 by vertically slotted hooks 93 and lock pins 96 which can be withdrawn by hydraulic cylinders 95 to leave the beams supported from the body by the hooks 93 so that they can be lifted free by actuation of the jacks 115. The beams 16, frames 18 and endless tracks 21 are narrower than the body 15 so that the detached parts can be carried by a vehicle just wide enough to carry the body 15. An engine bed 55 detachably mounted on one beam 16 carries an engine 52, transmission case, and two variable displacement hydraulic pumps each of which supplies two motors 62, 63 for driving one of the endless tracks 21.
Patent GB-203789-A (GB)
Title: Bolt lock
IPC: E05C1/04
Filed: 1922-06-14
Abstract: 203,789. Appleby, W. H. June 14, 1922. Sliding bolts.-The bolt case 44 of a reversible bolt 49 is made from a sheet-metal blank bent, as shown in Fig. 2, to form a base plate 41. flanges 45, 46, bolt housing 44, beaded edge 45a, and inturned clipping edge 47. The housing 44 is slotted to form a spiral groove 42 for the bolthandle 48, the ends 43 of the groove having slots or notches to prevent accidental movement of the bolt. This is further prevented by a spring-pressed ball 53 located in the handle 48 and bearing frictionally against the inner wall of the housing 44.