baber/WOPTO huggingface dataset:
Patent GB-537007-A (GB)
Title: Improvements relating to plastic mouldings for the emission of luminescence or the energy of x-rays or other rays of ultra short-wave length
IPC: C09D5/22
Filed: 1939-09-07
Abstract: 537,007. Luminescent and radio-active materials. BALDWIN, I., and McNEIL, I. Sept. 7, 1939, No. 25347. Convention date, Sept. 13, 1938. [Class 39 (i)] [Also in Group III] Luminescent material is intimately mixed with a vehicle such as urea formaldehyde condensation product so that translucent mouldings may be made by applying heat and pressure; a glazed surface is obtained. Architectural fittings, builders' hardware, electrical components, ornaments, rifle and like sights, vehicle and ship parts or fittings and road signs may be moulded from the material. The luminescent material may be impure sulphides, borates or silicates of barium, strontium, calcium, cadmium, lead, zinc; manganese, bismuth, silver or copper may be the activators being added in the form of nitrate, of one part in a hundred or a thousand. Sodium silicate may be added. A mercury vapour lamp may be used to activate the moulding and an electrical heater resistance may be incorporated therewith. A silver coating may be provided on the moulding to improve the reflection of the luminescence. Aniline dyes may be mixed with the material to form the moulding without affecting the luminescing colours. By using X- ray activation with zinc sulphide, cadmium tungstate or zinc silicate the moulding may be caused to radiate X-rays or short wave rays ; radioactive fluorides, meso-thorium or a radium compound may be mixed with the resin and for therapeutic purposes the moulding need not be translucent. The moulding may be shaped to fit the patient's body or part to be treated. X-ray photographs could be obtained by use of the material. The mouldings may be mounted in a metal frame. The Specification as open to inspection under Sect. 91 also states that the formed material may be ground to powder and used in the manufacture of paints or inks. This subject-matter does not appear in the Specification as accepted.
Patent GB-666984-A (GB)
Title: Improvements in and relating to belt drives
IPC: F16H7/14
Filed: 1948-09-30
Abstract: 666,984. Belt gearing. POESCHL, R., POESCHL, W., (trading as ROHRBACHER LEDERFABRIK. JOS. POESCHL'S SOHNE). Sept. 30, 1948 [March 9, 1942; Nov. 20, 1942], Nos. 25539/48, 25540/48. Class 80 (i). Belt-tensioning means in which the driving or driven machine is pivotally mounted is combined with means to increase the adhesion between a flat or V belt and pulley. A motor 1 is pivoted on an axis 7 spaced from the axis of the driving pulley 2 by an amount equal to or less than the radius of the pulley. The weight of the motor provides a constant belt-tensioning moment and the torsional reaction of the drive on the motor provides a moment proportional to the driving torque. Adhesion between belt and pulley may be increased by grinding or polishing the pulley, or covering it with friction-increasing material, and/or using the smooth side of the belt. In a modification the motor is supported in a cradle which may have several bearing holes to allow various positionings of the pivotal axis. Specifications 442,904, 450,753 and U.S.A. Specification 2,102,560 are referred to.
Patent GB-920126-A (GB)
Title: Improvements in or relating to the production of tetracycline
Filed: 1959-07-24
Abstract: Tetracycline and its salts are prepared by culturing a new strain of Streptomyces aureofaciens designated S. aureofaciens NCIB-9114 myces. The new strain is prepared from a chlortetracycline producing strain of S. aureofaciens designated LSZ-536 by the following in conventional nutrient media for Streptosteps (a) UV-irradiation to produce mutant C-241, (b) X-ray irradiation of C-241 to produce mutant D-6, (c) UV-irradiation of D-6 in the presence of benzyl thiocyanate to produce mutant G-993, (d) X-ray irradiation of G-993 and chilling to produce mutant CD-815, (e) treatment of CD-815 with streptomycin to produce mutant CDS-425, (f) incubation of CDS-425 in Coenzyme A supplemented synthetic medium, followed by X-ray irradiation in the presence of KCN to produce mutant CDSD-314 (NCIB-9114).  The tetracycline may be recovered in the conventional manner but with a step of treating an aqueous acid extract containing ferric salts e.g. chloride with a borohydride e.g. sodium borohydride and concentrating to precipitate the tetracycline.  Reference has been directed by the Comptroller to Specification 747,779.ALSO:A tetracycline-producing strain of Streptomyces aureofaciens (NCIB-9114) is produced from a chlortetracycline-producing strain of S. aureofaciens designated LSZ-536 by the following steps: (a) UV-irradiation to produce mutant mutant C-241; (b) X-ray irradiation of C-241 to produce mutant D-6; (c) UV-irradiation of D-6 in the presence of benzyl thiocyanate to produce mutant G-993; (d) X-ray irradiation of G-993 and chilling to produce mutant CD-815; (e) treatment of CD-816 with streptomycin to produce mutant CDS-425; (f) incubation of CDS-425 in coenzyme A supplemented synthetic medium, followed by X-ray irradiation in the presence of KCN to produce mutant CDSD-314 (NCIB-9114).  Reference has been directed by the Comptroller to Specification 747,779.
Patent GB-245230-A (GB)
Title: An improved expanding carrier for electric accumulators, petrol cans and the like
IPC: H01M2/10
Filed: 1924-10-27
Abstract: 245,230. Lawdham, H. C. Oct. 27, 1924. Parcel and like carriers.-A carrier for electric accumulators, petrol cans, &c., comprises a series of wire links hingedly connected by means of metal tubes sheathed with indiarubber or other resilient material 7. One link 5 has an india.rubber carrying- handle 8 encircling the upper bar, the ends of the opposite link 1 being hooked at 9 to engage therewith.
Patent GB-251525-A (GB)
Title: Improvements relating to suction plant for suction dredgers
IPC: E02F3/90
Filed: 1925-10-15
Abstract: 251,525. Fleming & Ferguson, Ltd., and Dunlop, E. Oct. 15, 1925. Driving-gear.-The centrifugal suction pump 2 ot a suction dredge is driven at a relatively high speed from a reciprocating steam engine through herringbone gearing 5, 6 housed in a casing 7 containing lubricant.
Patent GB-415895-A (GB)
Title: Improvements in electrically heated receptacles
IPC: A47J27/00
Filed: 1933-09-18
Abstract: 415,895. Electric cooking utensils. CRISTIANI, L., 25, Via Pallavicinio, and MASCARINI, G., 21, Via S. Antonio, Milan, Italy. Sept. 18, 1933, No. 25823. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 19, 1934.] [Class 39 (iii).] The bottom b is provided with a series of open ended channels c in each of which is arranged a closely fitting heating element provided with a hand grip. A switch is arranged in the handle. The Specification as open to inspection under Sect. 91 describes a heating element in the form of a fork, and refers to ovens. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 222,884, [Class 39 (iii)].
Patent GB-338604-A (GB)
Title: Process for the manufacture of condensation products containing sulphur
Filed: 1929-08-24
Abstract: 338,604. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Aug. 24, 1929. Ester condensation products. - Condensation products containing sulphur are obtained by treating oily to resin-like condensation products containing the residues of polyvalent alcohols, polybasic acids and unsaturated carboxylic acids with sulphur or agents providing sulphur under such conditions that the resulting products are soluble in hydrocarbons and in oils. The specified conditions are that the sulphur provided to be absorbed does not exceed 5 per cent and that the reaction temperature shall not exceed 200‹ C. According to examples, (1) the condensation product obtainable by example 4 of Specification 316,914 is heated with flowers of sulphur at 160- 170‹ C. ; (2) a solution of a similar condensation product in lacquer benzine is mixed with sulphur monochloride, allowed to stand, and heated to remove the solvent; (3) a condensation product from molecular proportions of glycerol, linoleic acid and phthalic anhydride is treated with sulphur chloride in lacquer benzine with a slow increase of temperature to remove the solvent by distillation; and (4) a condensation product from glycerol, ricinoleic acid and phthalic anhydride in the molecular proportions of 4, 3 and 4 respectively, is treated with flowers of sulphur at 160-170‹ C. The sulphurized products are readily soluble in hydrocarbons, such as benzene, and in other solvents, for example, butyl acetate, as well as in drying oils such as linseed oil and in oils of a non-drying character.
Patent GB-628221-A (GB)
Title: Improvements in water tube steam boilers and superheaters
IPC: F22G5/04
Filed: 1947-09-23
Abstract: 628,221. Steam superheaters. YARROW, Sir H. E. Sept. 23, 1947, No. 25852. Addition to 577,297. [Class 123(iii)] In the steam boiler described in the parent Specification, the degree of superheat is regulated by a flat element c which is associated with the bye-pass baffle a of the superheater b and is movable vertically between two extreme upper and lower positions to vary the relative quantity of furnace gases passing through the said superheater and its bye-pass p respectively. The element c is suspended from rods d the upper ends of which pass through glands e in the roof of the boiler and are connected to chains g which pass over pulleys h mounted on a shaft j adapted to be rotated by gearing m located at the side of the boiler. The shaft j is mounted in a closed chamber f on the boiler roof and is hollow, open at each end, and provided with holes pitched along its length so as to permit passage of a current of cooling air through said chamber and glands e.
Patent GB-393967-A (GB)
Title: Improvements in and relating to photo-electric cells and methods of producing same
IPC: H01J40/06
Filed: 1931-09-15
Abstract: 393,967. Photo-electric cells. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(G-M Laboratories, Inc. ; 1731, Belmont Avenue, Chicago, U.S.A.) Sept. 15, 1931, No. 25877. Drawings to Specification. [Class 39 (i).] A photo-electric cathode is prepared by (a) coating a base, for example of copper, silver, magnesium or gold with a paste or solution containing one or more oxides, oxidizing salts, or oxygen-bearing salts decomposable by heat to form oxides, (b) reducing the oxide and reoxidizing it, and (c) depositing photoelectric material such as alkali or alkalineearth metal on the reoxidized surface. A mixture of an oxide of barium, strontium, silver, gold, or copper, or potassium dichromate, or carbonate of barium or strontium with a solution of nitrocellulose in methvl alcohol and amyl acetate is sprayed on the cathode which is then treated to remove nitrocellulose and reduce carbonate to oxide : or one or more of the oxides of barium, strontium, silver, gold. or copper, or potassium dichromate are mixed with barium nitride and applied to the cathode and heated. Silver oxide is reduced to silver by heating to 300-350‹ C., and reoxidized by heating in oxygen with or without inert gas. Alkali or alkaline-earth metal is deposited by heating a pellet containing, for example, a mixture of a cµsium or potassium salt with calcium. Excess metal is absorbed in a lead glass stem, or removed by heating and evacuating the cell. Concentration of the alkali metal on the surface is increased by passing a glow discharge through inert gas with the cathode positive, or decreased by a similar discharge with the cathode negative.
Patent GB-952074-A (GB)
Title: Improvements relating to measuring methods and apparatus
Inventor: HARRISON JAMES ARTHUR
IPC: G01B7/04
Filed: 1960-07-26
Abstract: 952,074. Magnetic tests. DAVY & UNITED ENGINEERING CO. Ltd. July 26,1961 [July 26, 1960], No. 25946/60. Heading G1N. The elongation of magnetisable material as it passes through rolling means is determined by magnetising parts of the material at first points on the entry and exit sides of the rolling means, and generating electrical signals as the magnetised parts pass further points on the entry and exit sides, the magnetising taking place simultaneously with the generation of a signal at one of the further points, whereby the time separation of the signals is a measure of the elongation, and of the difference in speeds of the material at either side of the rolling means. Steel strip 5 passes between rollers 6 and passes close to transmitters 12, 12<SP>1</SP>, which magnetise the strip, and receivers 7, 7<SP>1</SP> which generate signals as magnetised parts of the strip pass them. Signals from receiver 7 pass through amplifier 8, pulse shaper 9, triggered pulse generator 10 and power amplifier driving circuit 11 to transmitter 12, so that pulses are generated continuously at a frequency depending on the speed of the strip and the separation of the transmitter and receiver. These pulses are fed through a D. C. restoring circuit 13 and a low-pass filter 14 to an indicator 15 measuring the ingoing strip speed. The system is triggered by a freerunning pulse generator 16 (e.g. at 1 pulse/sec.), below the minimum frequency (e.g. 3 pulses/sec.) of the speed measuring apparatus, generator 16 being biased off by bias amplifier 17 once the apparatus has been started. Generator 10 also operates transmitter 12<SP>1</SP>, and the separation of each transmitter from its corresponding receiver is made the same. The pulses generated by receiver 7<SP>1</SP> are fed through amplifier 8<SP>1</SP> and shaper 9<SP>1</SP> to pulse generator 10<SP>1</SP>, and the outputs from generators 10, 10<SP>1</SP> are fed to a pulse generator 18, which produces pulses whose width is proportional to the time separation of the input pulses. These pulses are applied through a D. C. restoring circuit 19 and filter 20 to an indicator 21 giving a signal proportional to the product of pulse width and pulse frequency, which is substantially proportional to the elongation of the strip, for small elongations. In a modification, suitable for measuring large elongations,transmitter 12 and receiver 7 are placed at the output side of rollers 6 and units 7<SP>1</SP>, 12<SP>1</SP> at the input side so that the frequency of the pulses applied to both transmitters is proportional to the outgoing strip speed, instead of the ingoing speed. A switch 22 is provided for zero-point calibration and checking purposes.
Patent GB-661345-A (GB)
Title: Improvements in or relating to the manufacture of carpets and of similar pile fabrics
IPC: A47G27/04
Filed: 1948-11-01
Abstract: 661,345. Joining strips of pile carpet. MACKAY, L. H., and MACKAY, J. Oct. 28, 1949 [Nov. 1, 1948], No. 25976/49. Divided out of 661,283. Class 142(iv). [Also in Group VIII] In a carpet formed by securing side - by - side similar strips of woven carpet, the height of the pile above the joins is maintained level with that of the rest of the carpet by omitting some of the stuffer warps from the backing at one or both selvedges of the adjacent strips. A pileless selvedge 12 and a pile bearing selvedge 13 are reduced in thickness by omitting some of the stuffer warps 16 from each selvedge. When the selvedges are lapped and secured together by adhesive or by sewing the height of the pile is constant over the whole carpet. In an alternative construction only one selvedge is reduced in thickness and the slight additional thickness caused by the selvedge lap is accommodated in the underfelt usually placed under carpets. The pile at the selvedges may be denser or of thicker yarn to make the join less noticeable.
Patent GB-700811-A (GB)
Title: Improvements in or relating to sealing devices for ball and roller bearings
IPC: F16C33/78
Filed: 1950-10-25
Abstract: 700,811. Oil seals. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI GEB. Oct. 25, 1950 [Nov. 4, 1949], No. 25981/50. Class 122 (5) An oil seal 4 for a ball or roller bearing 3 comprises an outer cylindrical portion seated in the bearing-house 2 and an intermediate frustroconical web connected directly to the cylindrical portion and inclined towards the bearing 3 and carrying resilient flanges 7, 8 inclined away from the bearing and resiliently contacting the bearing shaft 9 to form therewith a closed annular space 10 in which, it is stated, bearing lubricant collects. The seal 4, which may be of wholly resilient material, is held against the bearing by means of a spring ring 6.
Patent GB-787332-A (GB)
Title: Oil or other viscous fluid coolers
Inventor: MONTGOMERIE GEORGE ALAN
IPC: F01P11/08
Filed: 1954-09-08
Abstract: 787,332. Cooling radiators. SERCK RADIATORS, Ltd. Sept. 2. 1955 [Sept. 8, 1954], No. 25989/54. Class 64(3) An oil or other viscous fluid cooler comprising a housing c containing a group of parallel cooling tubes a over which the viscous fluid to be cooled is caused by means of baffles d. e to flow in a sinuous path from a fluid inlet f to a fluid outlet g both provided on the housing, includes at least two valve controlled by-passes h, i one of which can short circuit the whole or greater part of the normal viscous fluid flow path through the cooler between the inlet and the outlet and the other or others of which are arranged to short circuit a shorter or a series of progressively shorter portions of said flow path. In the oil cooler shown the by-pass h interconnects the respective spaces between the tube plates b and the first and last baffle plates as shown by the full line in Fig. 3, and the spring operated valve k is adapted to open at the highest oil pressure (i.e. on starting). As the stagnant oil in the cooler warms up slightly the warmer incoming oil finds its way to the space between the first and' second baffles and thence flows through the by-pass i and valve m to the outlet g, as shown by the dotted line iir Fig. 3. Ultimately when normal working conditions prevail and pressure is reduced, the valves k, m close and the incoming hot oil flows around the baffles and over the cooling tubes as indicated in Fig. 2. The coolant flowing through the tubes a may comprise air or water.
Patent GB-1142635-A (GB)
Title: Improvements in and relating to the production of printing blocks and plates
IPC: G03F5/24
Filed: 1965-06-22
Abstract: 1,142,635. Photo-mechanical and multi-colour printing processes. J. B. CROSSLAND. April 28, 1966 [June 22, 1965], No.26303/65. Addition to 977, 234. Headings G2C and G2M. Negatives for use in preparing photo-mechanical printing plates are produced by making a negative of the subject on an orthochromatic or panchromatic film, making two positive transparencies of the negative on orthochromatic film, one transparency being continuous tone and accentuating, i. e. making lighter, portions of the subject and the other transparency being half-tone and accentuating the lighter portions of the subject, registering the two positives and producing the required negative on orthochromatic film. For colour printing, four colour separation negatives of the subject are made on panchromatic film using red, green, blue and yellow filters. From each negative two positive transparencies are produced, registered and photographed to produce the required negative as set out above.
Patent GB-536642-A (GB)
Title: Improvements in or relating to automatic firearms
IPC: F41A3/82
Filed: 1939-09-21
Abstract: 536,642. Automatic guns. STEVENS, A. H. (Browning Co., J. M. & M. S.). Sept. 21, 1939, No. 26318. [Class 92 (ii)]  Relates to large calibre automatic guns of the long-recoil type as described in Specifications 226,197, 235,591, and 235,592, [all in Class 92 (ii)]. In the prior inventions, the gun barrel 6, barrel extension 7a, and lock frame 10 recoil together, the transversely-sliding breech block 9 being lowered by a lever 11 pivoted to the lock frame, one end of the lever engaging a slot in the breech block, and the other end moving in a groove in a cam 29 on the fixed casing. The recoil energy of the barrel imparts momentum to the lock frame which continues its rearward movement after the parts are unlocked, the lock-frame being subsequently held by a detent 26 when the barrel returns. According to the present invention, an accelerator 10c is pivoted at 10d on the barrel extension and has one arm engaging a projection 10i on the lock frame the other arm engaging near the end of recoil with a fixed cam surface lc to impart a rearward kick to the lock frame.
Patent GB-689655-A (GB)
Title: Safety devices for machinery guards
IPC: F16P3/04
Filed: 1950-10-28
Abstract: 689,655. Machinery safety devices. WILKINS & MITCHELL. Ltd., and HOLBERRY, E. G. Sept. 17, 1951 [Oct. 28, 1950], No. 26335 / 50. Class 80 (iv). A safety device for machines such as presses having a movable guard and a fluid-pressure operated friction clutch comprises a spring- loaded piston valve 16 controlling the fluidpressure supply from a conduit 17, connected to the clutch control valve, to a conduit 19 connected to the clutch operating device. The valve 16 has a projection 23 at its .lower end which co-operates with a notch 14 in a disc 13 rotated by a chain 6 for operating upper and lower guard members 1,.2 in vertical guides (not shown), on. the frame 3 of the machine. When the guards 1, 2 are closed, as shown, the notch 14 is in line with the projection 23 so that on pressure-fluid being supplied from the clutch operating valve the piston valve 16 is pressed down against its spring 20 to allow the pressurefluid to pass to conduit 19 to operate the clutch. Whilst the pressure is maintained above piston valve 16 and in the conduit 19 the guards cannot be opened by reason of the projection 23 engaging in notch 14. If the guards are not closed and the clutch operating valve is operated the projection 23 will engage the periphery of the disc 13 and the pressure-fluid will not be passed to conduit 19 to operate the clutch. An annular recess 21 and an axial passage 22 provides a pressure relief passage for the conduit 19 and clutch operating device. Specifications 604,374 and 636,095 are referred to.
Patent GB-867702-A (GB)
Title: Improvements in plastic working process
IPC: B29C45/26
Filed: 1958-08-15
Abstract: 867,702. Injection moulding tubular articles. TUBE TURNS PLASTICS Inc. Aug. 15, 1958 [June 16, 1958], No. 26350/58. Class 87(2). Plastic material is injected into a tubular mould 14 containing a piston 27 secured to one end of a mandrel 24, the incoming material moving the piston and mandrel longitudinally in the mould against the action of fluid pressure acting on a piston 31 carried by the other end of the mandrel 24 and sliding in a cylinder 13. With the parts in the positions shown, a ram 8 is raised to force plastic material from a pot 2 into the mould by means of a fixed ram 3. Plastic material entering the mould forces the piston 27 to the right and when the piston 27 projects from the end of the mould 14, a nut 28 is unscrewed and the piston 27 removed from the mandrel 24. By increasing the pressure on the right hand side of piston 31 the mandrel 24 is withdrawn from the moulded tube. Subsequently the mandrel 24 is again moved to the right and, due to the shrinkage of the moulded tube is used to eject the latter from the mould. The mould may be provided with up to four circumferentially spaced inlets, e.g. two diametrically opposed inlets in Fig. 4, (not shown), in place of the single inlet 15. Specification 867,703 is referred to.