baber/WOPTO huggingface dataset:
Patent GB-449719-A (GB)
Title: Improvements in or relating to files or binders for papers and the like
IPC: B42F13/36
Filed: 1935-07-05
Abstract: 449,719. Filing papers. HERDEGEN GES., H., 113, Rudower Chaussee, Adlershof, Berlin, and BRESTLIN, A., 36A, Schl³terstrasse, Hamburg, both in Germany. July 5, 1935, Nos. 19258 and 19259. Convention dates, Aug. 2, 1934 and Aug. 11, 1934. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 17, 1936.] [Class 146 (i)] A compressor bar for a document file, of the type comprising a pair of longitudinal clamping-wires extending substantially longitudinally of the bar and adapted to engage the filing- posts, has mounted thereon a bridgeshaped lever provided with arms which, on the lever being centrally depressed, exert pressure on the wires to cause them to grip the filing- posts. The wires 32, Fig. 1, are held on the bar 30 by clips 31, and are formed with bends 33 which constitute application faces for lugs 36 on a pair of lever arms 37, whereby the straight outer portions of the wires are pressed together to grip the filing-posts. The lever arms 37 are pivotally connected together at the centre of the bar by means of offset tongues 38, and are retained on the bar by the engagement of the lugs 36 in slots 35 in the bar. The bar may have a central depression to accommodate the hinge portion of the lever arms in the depressed condition. The wires may have slots therein to accommodate the lugs 36 on the arms 37, or the lugs may have small rollers thereon, or the wires may have guides thereon at the parts where force is applied by the lugs. In a modification, the shapes of the clamping- wires are modified, the ends thereof are free, and the bridge lever arms so exert pressure on the wires that the central portions are pressed apart, and the ends are forced together to grip the filing-posts. In the form shown in Fig. 11, the wires 59 are straight normally, and a tapered nose portion 57 on each lever arm 55 is, when the bridge is centrally depressed as shown, adapted to press the wires apart at the centre and together near the ends. Guides 61 for the wires are situated near the ends 57 of the lever arms. Lugs 56 on the lever arms merely guide the arms in slots provided in the bar outside the wires.
Patent GB-753635-A (GB)
Title: Polyene diether-acetals and the manufacture thereof and their conversion into a polyene aldehyde
Filed: 1954-07-01
Abstract: The invention comprises 1,1,3,5-tetraalkoxy-2,6 - dimethyl - 8 [21,61,61 - trimethylcyclohexen - (11) - yl] - 6 - octenes the alkoxy groups of which each contain from 1 to 6 carbon atoms, and the preparation thereof by condensing 1,1,3 - trialkoxy - 4 - methyl - 6-[21,61,61 - trimethylcyclohexen - (11) - yl]-hexene-(4) containing the required alkoxy groups with a propenyl-alkyl-ether in which the alkyl group contains from 1 to 6 carbon atoms in the presence of an acidic inorganic salt.  The process may include the further step of converting the product into 2,6-dimethyl-8-[21,61,61 - trimethylcyclohexen - (11) - yl]-octatrien - (2,4,6) - al - (1) by hydrolysis in an aqueous medium.  Suitable reactants for the above process, which may be used in an excess, are 1,1,3-triethoxy-, 1-methoxy-1,3-diethoxy-, 1,1-diethoxy-3-methoxy-, and 1,1,3-tributyloxy-4 - methyl - 6 - [21,61,61 - trimethylcyclohexen (11) - yl] - hexene - (4).  The acidic inorganic salts referred to are boron trifluoride etherate, zinc chloride, titanium tetrachloride, aluminium chloride, ferric chloride and stannic chloride.  The reaction may be carried out at a temperature of about 40 DEG  to 60 DEG  C., using borontrifluoride etherate as the acidic inorganic salt.  The additional hydrolysis step may be carried out with an aqueous solution of a water-soluble organic or inorganic acid or of a water-soluble salt having an acidic reaction, e.g., p-toluene-sulphonic acid, sulphuric acid, or phosphoric acid or zinc chloride.  It is preferable to exclude oxygen in this final step and to add an antioxidant such as hydroquinone.  In the example, 1,1,3-triethoxy-4-methyl-6-[21,61,61 - trimethylcyclohexen - (11) - yl]-hexene-(4) is prepared and is hydrolysed to 2,6 - dimethyl - 8 - [21,61,61 - trimethylcyclohexen - (11) - yl] - octatrien - (2,4,6) - al - (1).  Specification 753,560 is referred to.
Patent GB-147421-A (GB)
Title: Improvements in or relating to apparatus for treating with fluids, cords, threads, or similar textile materials
IPC: D06B3/04
Filed: 1920-07-07
Abstract: 147,421. Wardwell, S. W. Nov. 2, 1916, [Convention date]. Moistening, sizing, &c. threads &c. -Threads or similar textile materials are treated and conditioned by being passed through a tank of liquid, such as size when used for sewing-threads, or rubber solution &c. when used for tyre-fabric threads, through a pair of squeezing-plates, backwards and forwards, in crossed fashion round a pair of grooved rollers and finally dried whilst passing over another pair of spaced apart rollers. The apparatus shown is mounted upon a braiding-machine, and the thread passes over the roller O immersed in the liquid in the bath E and backwards and forwards a number of times over grooved rollers M, N, whereby the thread is bent alternately in reverse directions. As the thread leaves the bath, surplus liquid is squeezed out by passing it between a pair of plates p, Fig. 5, pressed together by a spring p<3>. The plates are grooved at p<5> to form a passage for the thread and are provided with holes communicating with the grooves whereby the liquid expressed may drain away. The plates are grooved to be reversible end for end and one for the other. The thread is then dried by being passed over rollers carried on an arm secured to a. bracket and thence to the reel on which it is wound. The roller 0, the squeezing-device P, and the rollers M, N are mounted on a rod L pivoted to the bracket H' so that it can be raised to lift the roller 0 out of the liquid. Specifications 12794/88, 23888/99, 12568/05, 21751/07 and 2437/11 are referred to.
Patent GB-1385066-A (GB)
IPC: F24H1/22
Filed: 1972-04-26
Abstract: 1385066 Electrode boilers BRITISH RAILWAYS BOARD 29 May 1973 [26 April 1972] 19385/72 Heading H5H Each of a plurality of electrodes in an electrode boiler is cranked and rotatably mounted at its one end so that when the electrodes are rotated in unison the spacing between their free ends 5 is varied. The means of rotation are gearwheels 7, on the ends of the electrodes, driven by a master gear-wheel 8. Seals 6 are provided when the lower ends of the electrodes are driven to prevent electrolyte escaping from the boiler, but when the upper ends are driven no seals will be necessary. The master gear-wheel may in another embodiment be a ring with internal teeth surrounding the wheels 7; it is also stated that pulleys and cranks can be used. The boiler body is made of polyacetal and either the gearwheels 7 or the master gear-wheel is of insulating material. The electrodes may be arranged with parallel or diverging axes.
Patent GB-638857-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G4/02
Filed: 1948-07-21
Abstract: 638,857. Condensers. GENERAL ELECTRIC CO., Ltd., FOXON, H. J., GOMM, W. H. C., MACHIN, C. F., and TAYLOR, K. July 21, 1948, No. 19540. [Class 37] A fixed condenser of the vacuum type comprises a cylindrical glass container 2 with metallic end members 3, 4, supporting copper cam-shaped electrodes 1 on spigots 18 and 17 respectively. The end members have thicker central portions 15 and 5 brazed to outer annular portions 12 and 9, and to which are soldered terminal caps 11 and 23. The spigot 16 is drilled right through and supports a seal-off pip 22. In a further embodiment the thicker central portions of the end members are contained within, and brazed to, dish-shaped end plates.
Patent GB-1303281-A (GB)
IPC: H03K17/13
Filed: 1970-04-23
Abstract: 1303281 Controlling A.C. supply to loads LICENTIA PATENT - VERWALTUNGSGmbH 23 April 1970 [24 April 1969] 19591/70 Heading H2H A circuit for controlling the supply of alternating current to a load 4 comprises reverse parallel connected thyristors 1, 2 which are switched on alternately at the zero passages of the alternating current by the discharge currents of respective control capacitors 51 and 61 respectively. A control circuit 3 switches on a transistor 7 to enable the capacitor 51 to be charged from the A.C. supply via a diode 53 and a resistor 52 during the first half cycle. Just before the zero passage of the A.C. supply, a transistor 57 is switched on to enable the capacitor 51 to discharge during the next half cycle via a diode 54 and the thyristor 1 thus switching on the thyristor 1. During this half cycle the capacitor 61 is charged from the voltage across the load via a diode 63 and a resistor 62. In the next half cycle the discharge of the capacitor 61 through the thyristor 2 and a resistor 66 switches on the thyristor 2, the thyristor 1 being prevented from conducting since the transistor 57 is switched off. The current supplied to the load may therefore be controlled by controlling the frequency at which the transistor 7 is switched on since each control pulse from the circuit 3 enables the capacitor 51 to charge so that the thyristors 1, 2 each conduct for one half cycle.
Patent GB-1602339-A (GB)
Title: Collagen skin dressings
IPC: A61P31/04
Filed: 1978-05-15
Abstract: When there has been loss of skin, e.g. owing to burns, collagen material has proved advantageous as temporary skin replacement instead of transplants. A collagen skin dressing material which is in sheet form and suitable for rapid use is produced by forming a collagen gel, extruding the collagen gel and forming a collagen sheet from the extruded gel. The collagen is then crosslinked, for example by treatment with glutaraldehyde. The crosslinked sheet is subsequently freeze-dried, and the freeze-drying can be preceded by partial air-drying. Bactericidal agents or antibiotics can be added to the gel or to the collagen sheet.
Patent GB-885355-A (GB)
Title: Improvements in and relating to the production of epsilon-caprolactam
Filed: 1960-06-03
Abstract: S -caprolactams are prepared by heating a 6-hydroxycaproamide of general formula HO-(CR2)5.CONHR, wherein R represents hydrogen or alkyl groups having up to 8 carbon atoms, in water at between 300 DEG C. and 475 DEG C., at superatmospheric pressure.  The process may be continuous and the products are removed by conventional methods, e.g. extraction with chloroform. Compounds in which the total carbon atoms in the alkyl groups does not exceed 12 are preferred and such compounds are listed. Examples describe the use of 6-hydroxycaproamide, N-methyl, 3-methyl, and 3,5-dimethyl-6 hydroxycaproamides, to prepare the corresponding S -caprolactams.
Patent GB-1091583-A (GB)
Title: Improvements in paper cutting apparatus
Inventor: RENARD JOHN JOSEPH
IPC: B26D3/16
Filed: 1965-05-11
Abstract: 1,091,583. Sharpening machine cutters in situ. PAPER CONVERTING MACHINE CO. Inc. May 11, 1965, No. 19751/65. Heading B3D. [Also in Division B4] The disc blade of a paper-roll cutting apparatus is sharpened by grinding wheels 136, 137 driven by motors 136a, 137a and inclined relative to each other to develop a double bevelled edge on the blade 124. The wheels 136, 137 are moved towards each other by the operation of solenoids 136b, 137b and coolant is supplied by a jet 135a. Sharpening takes place where the blade 124 is fully clear of the log or roll L.
Patent GB-1224772-A (GB)
Title: Novel compounds containing fluoroisoalkoxy-alkyl radicals
Inventor: ANELLO L
IPC: C08F16/24
Filed: 1968-04-25
Abstract: 1,224,772. Fluorine - containing ethers. ALLIED CHEMICAL CORP. 25 April, 1968 [25 April, 1967 (2)], No. 19752/68. Heading C2C. [Also in Division C5] Novel ethers of the formula wherein each R 1  is independently a fluorine or chlorine atom or a C 1-9  optionally halosubstituted alkyl group, provided that not more than two are alkyl groups, or two R 1 s form a C 1-18  optionally halo - substituted alkylene radical; A is a radical of the formula where R 3  and R 4  are hydrogen or chlorine atoms or alkyl groups, R 5  and R 6  are hydrogen or fluorine atoms, R 7  is a hydrogen, fluorine, chlorine or bromine atom or a perfluoroalkyl group and p is from 1 to 9, provided that when R 6  and R 7  are both fluorine atoms R 5  is also a fluorine atom; C and D are independently divalent radicals derivable from unsaturated compounds; m and n are from 0 to 75; v is 0 or 1; and E is a hydrogen or halogen atom, provided that when E is a bromine atom no other bromine atom is present, or E is a radical where u is from 1 to 6, provided that when v is zero the carbon atom adjacent to the sulphate group bears at least one hydrogen atom and provided that, when E is hydrogen or halogen, m+n+v is at least 1; are prepared (1) when v=0 by telomerizing a bromide or iodide of the formula where E is bromine or iodine with one or two olefinic or acetylenic compounds or (2) when v is 1, by converting the corresponding compound in which E is an OH group into a bromide or iodide, and in each case if desired replacing the bromine or iodine atom by a hydrogen, chlorine. or fluorine atom or reacting the compound with SO 3 . Bactericidal and bacteristatic agents, e.g. salves and ointments contain lower telomer iodides of the above formula as active ingredients, E being an iodine atom and m + n being from 1 to 5. Reference has been directed by the Comptroller to Specification 1,142,306.
Patent GB-395163-A (GB)
Title: Improvements in or relating to central heating systems
IPC: F24D3/02
Filed: 1932-07-13
Abstract: 395,163. Heating buildings. SKUBLICS, S., 5, Akademia Utca, Budapest. July 13, 1932, No. 19860. Convention date, Aug. 27, 1931. [Class 64 (ii).] In a pulsating circulation of hot water, oils or alcohol solution by intermittent variation of the boiler-pressure, the reduction of pressure therein is initiated by a direct interchange between the boiler 1 and a displacement vessel 2 associated therewith of boiling and cooler water effected thermosiphonically and independently of the variations of boiler pressure so that steam generation is temporarily abated. When the boiler pressure rises, water is expelled by steam from the displacement vessel 2 through a pipe 3 to the radiators 4 and thence to an expansion chamber 6. When the level in the vessel 2 falls, a float 7 therein sinks and opens a valve 8 to permit direct thermosiphonic interchange of the cooler water in the vessel 2 and the boiler water. Boiling is thus interrupted, pressure falls and water returns from the expansion chamber 6 through a pipe 13 with a non-return valve 14 to the vessel 2, until the float rises and closes the valve 8. An air vent 11 with a small hole 12 is provided in the boiler or chamber 2 and may discharge air and a little steam into the expansion chamber 6. Water may be heated in a tube 16 in the vessel 2, which may help condensation of steam.
Patent GB-307681-A (GB)
Title: Improvements in apparatus for utilising wave energy
IPC: F03B13/18
Filed: 1928-07-09
Abstract: 307,681. Avakian, J. C. July 9, 1928. Wave energy, utilizing. - Plant for utilizing wave energy comprises float-operated pumps delivering water to a conduit 59, Fig. 1, connected to a reservoir 60, a standpipe 70 and a header 66 for supplying turbines. The floats 2, Fig. 5, are hollow and formed with an inclined front 6 and depending side skirts 8. They are disposed between walls B connected to converging walls C, the effect of the waves being further enhanced by the provision of humps 20' beneath the floats. A device disposed behind the floats and consisting of pivoted members 50 prevents the backwash from returning. The floats are guided by means of rollers 10, 12 carried by a braced frame, and are connected to crossheads 28 for operating pump pistons 26. Spring buffers 49 are provided.
Patent GB-499039-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/28
Filed: 1937-07-20
Abstract: 499,039. Vacuum cleaners ; dust-bags. AIR-WAY ELECTRIC APPLIANCE CORPORATION. July 20, 1937, No. 20062. Convention date, July 22, 1936. [Classes 8 (i) and 8 (ii)] The suction unit 10 of a vacuum cleaner has alternative suction inlets 11., 12 leading respectively to the floor nozzle and to a hollow handle 26 which may be used to clean corners or may carry a wall-cleaning tool or a flexible hose. A discharge outlet 15 carries a discharge delivery tube 21 supporting a double dust-bag 16, 17 and having at its upper end a bracket on which the handle is pivoted so that its mouth 22 can slide arcuately on the face of a hood 24 on the inlet 12. The handle may be locked in desired position by a screw on the hood pressing against it. In a modification, the handle is pivoted nearer the suction unit, and the bag is independently mounted. Fig. 7 shows a cleaner in which the handle turns on pivots 18 at the lower end, and the bag has a flexible connection 42 supported by a bracket 40 on the handle, which bracket also carries rods 35 supporting the bag. An inner bag of paper may be used within a bag of fabric ; the paper bag may be folded as shown in Fig. 6 to form two portions, with separate inlets, parted by a screen 38 of wire &c.
Patent GB-573167-A (GB)
Title: Improvements in or relating to medical syringes
IPC: A61M5/178
Filed: 1943-12-01
Abstract: 573,167. Medical syringes. EVERETT, S. J. Dec. 1, 1943, Nos. 20089/43, 123/44, 10059/44, and 15162/44. [Class 81 (ii)] A medical syringe having a glass barrel is reinforced at the forward end by means of a closely fitting permanent outer cover. As shown in Fig. 1, the syringe includes a barrel 1 formed with an integral glass front closure 2 having a glass nozzle 3. A thin metal cover 4 surrounding the nozzle 3, front closure member 2, and lower end of the barrel 1, is secured in position by a thin cushion 5 of solder. The cover may be made of stainless steel or brass and affixed alternatively by means of powdered ceramic or glass, or by direct welding. The cover may also be made of synthetic resin and fixed by an adhesive. In a modification, the front closure member, made of glass or ceramic, fits into the end of the barrel, and the parts are held together solely by the cover with a solder cushion, or in addition joined at their cylindrical surfaces of contact by welding or by means of a fit. In another modification the cover comprises a metal band, which is soldered about the forward end of the barrel, the latter being fixed by compression between the tightly fitting closure member and the metal band. In a further modification, the metal ring may be slightly tapered internally and shrunk directly on the correspondingly tapered end of the barrel. In all cases, materials of similar thermal expansion are selected to minimise strains set up during manufacture and sterilisation at high temperatures. Specification 557,363 is referred to.
Patent GB-708613-A (GB)
Title: Improvements in plug-in pipe connections
Inventor: LIGHTOWLER LESLIE ERNEST
IPC: F16L29/02
Filed: 1952-08-09
Abstract: 708,613. Pipe couplings. LAYCOCK ENGINEERING, Ltd. March 2, 1953 [ Aug. 9, 1952], No. 20098/52. Class 99 (1). In a spigot-and-socket coupling in which a spring-loaded valve 10 in the socket 1 is opened by the spigot 26 under the action of a coupling nut 29, the arrangement is such that the spigot enters the socket and engages a sealing ring 23 before the screw-thread of the nut engages that of the socket. The nut is revolubly mounted on the spigot, having a flange 33 located between a shoulder 30 and circlip 31. An unthreaded front portion 34 of the nut engages a shoulder 20 in the fully coupled position. The valve may be removed by unscrewing the rear section 4 of the socket. Entry of the spigot is facilitated by chamfers 25, 50. In a modification a conical surface on the spigot engages the chamfer 25, and a non-return valve is provided in the spigot.
Patent GB-517865-A (GB)
Title: Improvements in and relating to calendars or date indicators
IPC: G04C17/00
Filed: 1938-07-07
Abstract: 517,865. Date-indicators. LEVY, A. July 7, 1938, Nos. 20117/38 and 6146/39. [Class 106 (iv)] In a daily-changed date indicator automatically operated by a clock mechanism a wheel 1, Fig. 1, driven from an electric clock closes contacts 4, 5 once every day whereby a magnet 6 is energized to advance a day-name wheel 12 and a magnet 13 to advance a date-figure wheel 17. The date-figure wheel 17 and the monthname wheel 37 are shown twice to clarify the diagram. When the date-figure wheel 17 completes a revolution, it closes contacts 48, 49 in the circuit of the magnet 33 driving the monthname-wheel 37. The month-name wheel 37 has a contact 52 in the February place and contacts 53-56 in those places corresponding to 30-day months. The date-figure wheel 17 has a contact 50 in the " 28th " place and a contact 51 in the " 30th " place. The contacts. 52, 53-56, 50, 51 co-operate with each other and with fixed contacts 57, 58, 59, in such a way that a magnet 60 is energized to advance the date-figure wheel at the end of February and a magnet 61 to. advance the wheel at the end of the 30-day months. In a modification, Fig. 3, contacts 82  are closed once daily by a clock-driven wheel 1, and faster-moving wheel 71 then closes contacts 5, 4, to energize magnet 6 to change the day-name wheel 12. The fast wheel then closes contacts 4, 72-75 in succession. Contacts 4, .72 complete the circuit of a magnet 13 to advance the date-figure wheel 17 one step. At the end of February, contacts 66, 67, 68 on the date-figure wheel 17 co-operate with a contact 52 on the month-name wheel 37 and with fixed contacts 76, 77 whereby the magnet 13 is energized each time a contact pair 72-75 is closed, the wheel thus being given three extra steps and moved to show " 1." At the end of a 30-day month, the date-figure wheel is given one extra step by the co-operation of the contacts 68 with one of a 'set of contacts 53-56 arranged on the 30-day month places of the wheel 37. The wheel 37 is moved one step for each complete rotation of the date-figure wheel by a magnet 33 energized through contacts 48, 49 closed by the date-figure wheel. The contact element 66 may be removed, the date indicator then being set for a leap year. In a further modification, the' ratchet wheels of the datefigure, day-name and month-name wheels each have a multiple of the minimum number of necessary teeth, the arrangement of Fig. 3 being modified by providing additional contacts to give the additional number of actuating impulses.
Patent GB-703289-A (GB)
Title: Polymeric plasticisers and their use
IPC: C08F18/12
Filed: 1951-08-27
Abstract: Polymeric esters suitable as plasticizers, particularly for vinyl chloride polymers and copolymers, are prepared by polymerizing one or more esters of saturated fatty acids and b -d -unsaturated alcohols, the esters containing 7 to 14 carbon atoms in the molecule, in the presence of a chain stopper to produce a product having an average molecular weight of not more than 1,000, from which fractions having boiling points up to 200 DEG C. under a pressure of 1 mm. Hg are removed by distillation. Suitable chain stoppers are aldehydes, ketones, and hydrocarbons with a mobile hydrogen atom; acetone, methyl ethyl ketone, cumene and triphenyl methane being specified. Generally they are used in proportions up to 200 per cent. by weight of the monomer. Specified esters are allyl butyrate, allyl ester of a C6-oxo fatty acid fraction and the allyl esters of oxo-fatty acids, consisting of C6, C7, C8 and C9 fatty acids.  Polymerization may be effected in solution or in emulsion, at a temperature, for example of 200 DEG C.  A catalyst, such as di-tert butyl peroxide, may be present.  The products may also be used as lubricants and lubricant additives.  Specification 703,252 is referred to.