baber/WOPTO huggingface dataset:
Patent GB-385670-A (GB)
Title: Improvements in or relating to vacuum drying apparatus
IPC: F26B11/04
Filed: 1931-09-04
Abstract: 385,670. Vacuum drying-apparatus. JONSSON, A. E., Lidingo, Sweden. Sept. 4, 1931, No. 24890. Convention date, Sept. 25, 1930. [Class 34 (ii).] Vacuum drying-apparatus having heating units in the drying receptacle has one or more chambers arranged at or near its end wall or walls communicating on the one hand with the interior of the receptacle through strainers, and, on the other hand, with the source of vacuum by a pipe or the like, the said chamber or chambers being heated by the units in the drying-receptacle, or by separate units, or by both; the conduits leading to and from the units in the receptacle may also heat the chambers. In the form illustrated in the Figure, the drying drum 1 is heated by units 7 fed, for example, with steam. The steam is introduced through the conduit 8 to the pipe 9, and carried off through the pipe 10. The vacuum conduit 11 is connected to the drum through the chamber 12, which communicates with the interior of the drum through openings 17 provided with strainers 18, which are accessible through apertures 19 normally closed by covers 20.
Patent GB-227169-A (GB)
Title: A machine for spraying insides of packages or boxes or the like
IPC: B31B1/74
Filed: 1923-10-06
Abstract: 227,169. Endersen, J. Oct. 6, 1923. Coating-machines.-Apparatus for coating the inside of boxes &c. by spraying, comprises a revolving table 20, Fig. 1, for supporting the article 3 to be coated, which is mounted above a steamheated receptacle 2 for the coating material provided with a pump 4 operated by a hand-lever 7 pivoted to a link 9. The pump supplies the. coating material to an upright pipe 17 passing centrallv through the collar 19 on which the turntable 20 is mounted. The pipe. 17 carries at its upper end an elbow 23 in which is rotatably mounted a spray head 24 carrying an atomizing nozzle 27. The spray head may be rotated by link-work connected to a handle 38. The linkwork comprises an arm 28, Fig. 3, adjustably connected by holes 29 to a lever 30 which is connected by a pin 31 to a vertically sliding rod 32 the lower end of which is forked to embrace the pump barrel 4. The rod 32 is connected by a rod 33 to a crank 35 operated by the handle 38. Extending from the handle 38 is a crank 39, Figs. 1 and 4, which is connected through a ball-andsocket joint to the rod 41, the lower end of which is in ball-and-socket engagement with a bellcrank 43 connected by a link 46 having a hook 47 at its outer end to the operating arm 7 of thepump. The arrangement is such that on operating the pump, the nozzle is simultaneously rotated, while by detaching the link 46 the pump- and nozzle may be separately operated. The vessel 2 may be provided with a cover 51.
Patent GB-462362-A (GB)
Title: A new or improved register viewing device
IPC: E05D15/44
Filed: 1935-09-09
Abstract: 462,362. Optical systems. HOE & CO., Ltd., R. Sept. 9, 1935, Nos. 25098 and 25099. Convention dates, Sept. 8, 1934 and Aug. 6, 1935. [Class 97 (i)] [Also in Group XVI] Means for producing stationary images of regularly recurring impressions on a web continuously fed through a printing-machine comprises a continuously-rotated rotor carrying reflecting surfaces ; the images are observed through a telescope, and may be reflected thereto from the rotor by a mirror which is rocked to correct slight errors in the compensation for web movement effected by the rotor. Rollers arranged between the sets of printing rollers are adapted to be adjusted to maintain registration of the printed impressions. Various forms of observation devices are described, all embodying a rotor 81, having light-reflecting surfaces 82 and rotated synchronously with the running web. The rotor may extend across the complete width of the web, or may extend only partly across and be adjustable in lateral position ; it may be adjustable to and from the web. In one form, the member 81 is driven through a differential gearing comprising sun and planet gears from one of the printing cylinders &c. A hand-operated worm enables the outer casing of the differential gearing to be rotated, so that the rotating member 81 may be driven faster or slower than the web. As shown, the rotor 81 is driven from a motor 85 by a worm 87 or by a flexible shaft, both of which are also manually adjustable to advance or retard the rotor 81 relatively to the web. The light rays from the mirrors 82 are reflected by a mirror 84 into the telescope 83. The mirror 84 is mounted on a rock-shaft which is oscillated from a cam mounted on the shaft carrying the reflecting member 81. A mirror, or two parallel mirrors may reflect light from the web to the rotor 81 and, to maintain the light path constant in length, the two mirrors may be moved simultaneously by screwthreaded shafts when an adjustment transversely of the web is made. Means may also be provided for maintaining the mirrors parallel during this movement.
Patent GB-501719-A (GB)
Title: Improvements in fastening clips and the like
IPC: A44B99/00
Filed: 1938-08-26
Abstract: 501,719. Paper &c. fasteners. ROBINSON, H. J. Aug. 26,1938, No. 25098. [Class 44] In a fastener for securing together superposed layers of material comprising a V- form member one limb 2 of which has a struckup prong 7 adapted to be passed through the material and through an aperture 8 in the other limb 1, the end of prong 7 being then clinched over, additional shorter prongs are provided. Aperture 8 preferably has converging edges 9. As shown a pair of additional prongs 10 is stamped out on each limb. The prongs may, however, be provided on one limb only, the other limb having corresponding triangular prong-receiving apertures. The blank is cut away to provide a narrow neck 3 in the region of the bend. Fig. 4 shows the application to securing the ends of loop strap 12 together, and to a ring 13 which is secured in the bight of the fastener and is mounted on a bracket 14.
Patent GB-666555-A (GB)
Title: Improvements in or relating to centrifugal mills
IPC: B02C13/09
Filed: 1947-09-12
Abstract: 666,555. Grinding mills. KLAGSBRUNN, J., and MARKUS, E. H. Sept. 12, 1947. [Sept. 5, 1939] No. 25105/47. Class 59. A centrifugal mill in which the material to be ground enters the mill axially, and is thrown by centrifugal striking tools b<1> against stationary deflecting surfaces c' surrounding said striking tools whence it is thrown against annular screen or grid surfaces d<1> coaxially surrounding said. stationary deflecting surfaces, is characterized in that the inclination of each :deflecting surface with respect to the adjacent part of, the surrounding screen or grid surface is the same and that the striking surfaces and/or the deflecting surfaces are angularly adjustable relative to their respective supports. The members b<1> may have a square or triangular cross-section and they and the deflecting surfaces c<1> may be twisted, Fig. 5, or stepped. In an embodiment, Fig. 9, material fed from a hopper a passes through three separate ginding stages. The material is thrown by members b on a rotor j against impact members c whence it rebounds on to a surrounding sieve d, the material which passes through the sieve leaving the mill through an outlet I; the material rejected passes to the next grinding stage where it is thrown by members e on the rotor j against surrounding impact members f to rebound on to a sieve g, the sifted material leaving through an outlet II, unsifted material passing to a third stage where it is thrown by members on the rear face of the rotor j against surrounding impact members to rebound on to a sieve to pass through an outlet III. The rotor shaft k may be adjusted in an axial direction. The material may be passed through a preliminary grinding stage. When grinding a mixture of fibrous and non-fibrous material, the. fibrous material, which is not ground, is removed through a separate outlet.
Patent GB-389088-A (GB)
Title: Improvements in or relating to delivery valves for airless injection internal combustion engines
IPC: F02M59/46
Filed: 1931-09-07
Abstract: 389,088. Fuel-injection pumps. FIAT SOC. ANON., 250, Via Nizza, Turin, Italy. Sept. 7, 1931, No. 25129. Convention date, Sept. 30, 1930. [Class 102 (i).] In a fuel - injection pump a cylindrical discharge valve 1 is employed controlling passages 9, 91 and grooves 8, 8<1> leading to a discharge chamber 10. The valve is acted on by a spring 3 and the return of the valve on completion of discharge causes a fall of pressure in the chamber 10. The valve 1 may be formed with a face at its lower end engaging a seating 2, or may be formed with a valve head engaging a seating at the upper end of the bushing 4, the discharge passages and groove in this case being formed internally in the bushing 4 and opening into the valve seating. Alternatively the valve 1 may be provided with a collar limiting its axial movement.
Patent GB-1143326-A (GB)
Title: Process for the polymerisation of trioxane
IPC: C08G2/00
Filed: 1967-05-31
Abstract: 1,143,326. Trioxanpolymerization in the presence of tetroxan. PERSTORP A.B. 31 May, 1967 [9 June, 1966], No. 25175/67. Heading C3P. Trioxan is polymerized in the presence of an electrophilic catalyst, in which process 0À5 to 30% of tetroxan is added to the monomeric starting material. Copolymers with other cyclic acetals, e.g. dioxolan cyclic ethers, e.g. ethylene oxide, and ethylenically unsaturated compounds, e.g. vinyl and allyl ethers, styrene, α- methyl styrene, isobutene, butadiene, isoprene and cyclohexene may be prepared. In the example, a 95% trioxan - 5% dioxolan copolymer is prepared by polymerization in the presence of BF 3 .(C 2 H 5 ) 2 O and tetroxan, the process being carried out in the melt and in the presence of 5% of cyclohexane.
Patent GB-322227-A (GB)
Title: Improvements in gear teeth
IPC: F16H55/08
Filed: 1928-09-01
Abstract: 322,227. Hammar, S. A. S. Sept. 1, 1928. Toothed wheels. - The profiles of spur and. worm wheels and racks are formed of two involute arcs of different pressure angles inter-connected by a segment, which may be circular or of involute form of one or more pressure angles and may or may not convey rotation. In the pinion, or smaller wheel of a pair, the involute of small pressure angle, say 14¢, extends from the tooth points past the pitch circle to a point such that its contact begins at a point c approximately midway between the pitch point p and the end of its line of pressure a, p, c. This point c is thus selected to avoid excessive tooth pressures. A segment c, g, which may be circular or of involute form of one or more pressure angles, leads to the involute arc extending from g to the root, which is of greater pressure angle, say 30‹. The roots of the teeth are thinner than those of involute teeth of the same pitch thickness and of the greater pressure angle employed and are thus of considerable flexibility. The teeth of the gear wheel or larger wheel of the pair are formed as involutes of high pressure angle near the point and of low pressure angle therebelow, with an intermediate segment, which may or may not convey rotation to maintain correct engagement with the pinion. As applied to worm wheels a smaller axial length of tooth may be employed without increase of tooth pressure. Specification 267,416 is referred to.
Patent GB-511586-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/32
Filed: 1938-02-19
Abstract: 511,586. Vacuum cleaners. HOOVER, Ltd. (Hoover Co.). Feb. 19, 1938, No. 25177. Divided out of 511,532. [Class 8 (i)] The rear wheels 4 are mounted on a pivot 13 on the casing and are pressed away from the casing by a spring ; the wheel-carrier is formed with a lever 18 which when the floor nozzle is in operation closes a valved passage 11 by which a converter for off-the-floor cleaning is introduced. The wheel axles are carried in a slot of a heightadjusting rod 17. In a modification, the wheelcarrier is directly acted on by a height-adjustment rod, and the lever thereon is formed with lugs which form guides and catches for the converter attachment.
Patent GB-1182793-A (GB)
Title: Improvements in or relating to Data Processing Apparatus.
Inventor: FRANCE JAMES FISHER
IPC: B41J5/38
Filed: 1967-05-31
Abstract: 1,182,793. Recording circuits. BRITISH PETROLEUM CO. Ltd. 30 Aug., 1968 [31 May, 1967], No. 25186/67. Heading G4H. Data read from a punched tape is received on a plurality of flip-flops PF1-FP8, the outputs of which are decoded in an array of gates each responsive to a different combination of stored bits, the outputs from the gates being transferred via a recoding matrix and gating means to bi-stable storage elements providing signals to a printer, and a timing circuit, controlled by a timing signal from the tape-reader, gives control signals for the gating means, for the printer and for the generation of a " read-nextcharacter " signal, RNC. This is applied to the flip-flops FF1-FF8 to enable them to receive the next character. The holes in the tape are sensed by photo-cells giving signals PC1- PC8. Switches in the inputs of flip-flops FF5-FF8 are set according as to whether the tape has 5, 7 or 8 holes. With 7- or 8-bit codes there is a parity bit. This is stored in FF7. Flip-flop FF6 has extra inputs, allowing in the case of a five-bit code, the entry of a bit indicating letter shift or figure shift. These signals come from the decoding matrix. The timing circuit comprises a chain of delay element DFF1-DFF9. The timing signal LOC is derived from a photo-cell signal in the tape reader. It is used to enable the input gates to the flipflops FF1-FF8 and it is applied to the timing chain to give successive enabling signals to gates receiving the outputs of the flip-flops FF1-FF8. The outputs of the gates are connected together and to a flip-flop FF18 which acts as a divide-by-two counter as the serialized code is applied to it. A switch is set to odd or even, according to the parity, and a signal passes to flip-flop FF10 indicating that the parity checks or does not check. In the latter case the read-next-character signal RNC is not applied to the flip-flops FF1-FF8. The parity fail signal also sets a bi-stable FF9 to control a clutch to stop the printer and light an alarm lamp. The outputs from flip-flops FF1-FF8 are applied in parall 1 to gating circuits composed of NAND gates which give an output on one of 64 leads. The 64 leads are connected to another 64 leads by a plug-board set for the code being used. The output from the plug-board is applied to a diode recording matrix and converted to a combination of markings on 6 leads which are applied to the printer. Most of the circuits are described in detail.
Patent GB-155563-A (GB)
Title: Improvements relating to fluid compressors
IPC: F04B35/06
Filed: 1920-09-01
Abstract: 155,563. Townsend, C. W. Dec. 15, 1919, [Convention date]. Pump-aetuating mechanism.-In the actuation of compressors, the usual crank-shaft bearings are dispensed with and driving-gear is mounted to run in bearings and to carry the crank-pins of the compressor pistons. Fig. 1 shows a herring-bone gear which is formed in two parts 11, 12 bolted together and is. driven by a pinion from a motor 1. Each section of the gear is provided with a crank-pin for the corresponding connecting rod 7, 8. At the outer side of each section, a cylindrical face is provided, formed, with a ball-rare member 15 coacting with a corresponding outer ball-race member 16.
Patent GB-236430-A (GB)
Title: Improvements in and relating to the control of dynamo electric machines
IPC: H02P9/18
Filed: 1924-10-23
Abstract: 236,430. British Thomson-Houston Co., Ltd., (General Electric Co.). Oct. 23, 1924. Regulation, automatic.-A controlling device for dynamo-electric machines comprises a relay the calibration of which is automatically changed when the temperature of the machine to be protected reaches a predetermined value to automatically reduce the current output by field control until such time as the machine has cooled off or the. current taken from the machine has fallen due to less demand. As applied to the system described in Specification 204,611, the load control relay 33, which operates to take control from the voltage regulating relay 28 on excessive load, comprises a series coil 34 and a separately excited potential coil 51. On light load the moving arm of the relay 33 is caused bv coil 51 to bridge contacts 35, 37; on maximum load the arm floats, and takes control from the relay 28; on excessive load it bridges contacts 36, 37 to energize the motor 38 through its field winding 40 to insert resistance in the rheostat 41 and reduce the voltage of the machine 48. If the overload continues and the temperature of the machine gets excessive, a temperature relay opens its contacts 54 and, by de-energizing the coil 53, inserts resistance 55 in the circuit of the coil 51. The voltage of the machine is thus lowered at a less current in the main circuit when the machine is hot and the temperature relay operates than when the machine is cold.
Patent GB-230413-A (GB)
Title: Improvements in or relating to the extraction of hydrogen from gaseous mixtures
IPC: F25J3/08
Filed: 1924-10-23
Abstract: 230,413. Soc. l'Air Liquide, Soc. Anon. pour l'Etude et l'Exploitation des ProcÚdÚs G. Claude. March 8, 1924, [Convention date]. No Patent granted (Sealing fee not paid). Separating gaseous mixtures by liquefaction.- In the extraction of hydrogen from gaseous mixtures by partial liquefaction and rectification preceded by cooling in temperature exchangers, acetylene and other substances present in small quantities and soluble in ethylene are removed by adding to the gases to be treated a proportion of ethylene free from acetylene &c. The ethylene to be added may be that extracted from the gases in the temperature exchangers in the process described in Specification 223,489, the acetylene &c. present being removed from the ethylene by liquefaction or by chemical means.
Patent GB-1057547-A (GB)
Title: Cored foundry moulds
IPC: B22C9/10
Filed: 1964-06-19
Abstract: 1,057,547. Moulding machines. HENRY WALLWORK & CO. Ltd., and C. M. G. WALLWORK. June 14, 1965 [June 19, 1964], No. 25366/64. Heading B3F. In a method of making cored casting moulds means are provided for transferring the core box or part of it, with the cores therein, from a location in which the core or cores are formed to a location adjacent the mould and whereat the core or cores are transferred directly from the core box or core box part into the mould. In the embodiment described the transferring means for the core box or part includes a fluid actuated pivotable table on which the core box is mounted which facilitates reorientation of the box from the position in which the core or cores are formed to a position adjacent the mould. In this latter position the cores engage the mould and means in the form of ejector pins insert the core or cores into the mould and facilitate the withdrawal of the core box. The ejector means may be operated mechanically or fluid actuated or the cores may be ejected simply by using compressed air.
Patent GB-897165-A (GB)
Title: Cold-water-dispersible starch and method of preparation
IPC: C08B30/14
Filed: 1960-07-21
Abstract: In producing a cold-water-dispersible starch suitable for use as a laundry starch or as a size for paper, a mixture of starch and water containing 1,0 to 3,2% of sodium borate, computed as Na2B4O7, and 5 to 15% of anhydrous sodium, potassium or magnesium sulphate, based on the weight of starch, is heated to effect drying and the dry residue is reduced to a powder, of which at least 50% passes A.S.T.M. sieve No. 100.  Pine oil, paraffin wax, stearin or a fatty alcohol sulphate may be added prior to or during drying.  The starch may be modified, oxidized, hydrolysed, etherified or esterified starch.  Specified starches are potato starch, oxidized potato starch, maize starch, e.g. slightly etherified with 1,2-epoxy-ethane, a slightly esterified starch, e.g. a starch acetate, and waxy-maize, wheat, sorghum, rice, sago or tapioca starch.
Patent GB-966296-A (GB)
Title: Radiation-sensitive polymers, their manufacture and use
IPC: C08G64/04
Filed: 1960-07-21
Abstract: A method of making a light-sensitive polymer comprises subjecting to polymerization condensation conditions a mixture of a reactive dichloride which is a diacyl chloride, a bischloroformate of a diol, phosgene or the dichloride of a dibasic acid of phosphorus or sulphur and one or more bisphenols at least one of which is a light-sensitive bisphenol containing the group <FORM:0966296/C3/1> Suitable bisphenols have the formula: <FORM:0966296/C3/2> wherein each R is H or a hydrocarbon radical or the two R's complete with the =C-CO-C= group a five or six-membered ring and each R1 is H or -OCH3. Preferred are those of the formula: <FORM:0966296/C3/3> and <FORM:0966296/C3/4> As reactive chlorides there are specified (1) diacyl chlorides of aliphatic, alicyclic and aromatic dicarboxylic acids; (2) phosphorus-containing di-acid chlorides (such as chloromethyl phosphonic dichloride and phenyl phosphonic dichloride; (3) sulphur-containing diarid chlorides such as thionyl chloride; (4) bis chloroformates such as those of glycols,2-methyl-2-nitro-1,3-propanediol or 5-(41-azedebenzal)-3-(p-hydroxy-ethylphenyl) - 2 - (p - hydroxyethylphenylimino) thiazolidine.  The bis phenols may be employed singly or in mixtures.  Non-light-sensitive bisphenols can be incorporated in the reaction mixture.  Specified light sensitive phenols are 4, 41-dihydroxychalcone; 2, 6-bis (31 and 41-hydroxybenzol)-cyclohexanones; divanillal-acetone, -cyclohexanone, 4-methyl-cyclohexanone or -cyclopentanone; disyringal cyclopentanone or -acetone; 1, 5-bis (41-hydroxy-31-methoxyphenyl)-2-methyl-1, 4-pentadiene-3-one. Non-light-sensitive bisphenols include Bisphenol A, tetrachloro-bisphenol A, tetrabromobisphenol A, 4, 41-dihydroxy-diphenyl sulphone, vanillalazine, salicylazine, 4-(m-nitrophenylazo)- resorcinol, quinizarin, dibenzoyl resorcinol. In examples (1) a polycarbonate is prepared by reacting divanillal cyclohexanone and phosgene in dichloromethane in the presence of benzyltriethylammonium chloride.  Also prepared are polycarbonates from phosgene and (2) a mixture of bisphenol A and divanillal cyclopentanone in the presence of benzyl triethyl ammonium chloride; (3) to (8) reaction mixtures including 2,6-bis(3 or 4-hydroxybenzal) cyclohexanone or divanillal cyclopentanone as the light-sensitive bisphenol.  A copolyester is prepared (9) by reacting divanillal cyclopentanone, bisphenol A and succinyl dichloride.  The use of aromatic, cycloaliphatic and other aliphatic diacyl chlorides and of dichlorides of phosphorus acids and of other bisphenols, with bisphenol A, is illustrated. A different kind of polycarbonate is prepared by reacting (17) divanillal cyclopentanone and neopentyl bischloroformate. The preparation of similar polymers is described, from other chloroformates and in some cases with the inclusion in the reaction mixture of bisphenol A or tetrabromo bisphenol A, or (29) 2-(4-hydroxyphenylimino) -3- (4 - hydroxyphenyl) - 5 - (4-azidibenzal) thiazolidine, or (30) 4,41-dihydroxy diphenyl sulphone.