baber/WOPTO huggingface dataset:
Patent GB-1115282-A (GB)
Title: Improvements in or relating to a process for the continuous automatic preparation of plaster for immediate use and apparatus for carrying out the same
IPC: E04F21/12
Filed: 1965-07-21
Abstract: 1,115,282. Continuous discharge mixing. H. PORNIN and P. SIGURET. 21 July, 1965. No. 31044/65. Heading B1C. [Also in Division B8] A mixer for preparing building plaster comprises an opening 22 admitting dry plaster powder from a supply, the powder being conveyed by bladed wheels 21, 23 into the region of nozzles 6 which spray water onto the powder, the water and powder being mixed by further wheels 24, 25 and transferred into the region of a wheel 26 with flat vanes 26a which homogenise the mixture and eject it through a hole 14. All the wheels are mounted on a driven shaft 17. Other continuations and arrangements of wheels are disclosed.
Patent GB-1150303-A (GB)
Title: A Process for Reducing Anode Corrosion in an Acrylonitrile Hydrodimerization Cell.
IPC: C25B3/29
Filed: 1966-07-11
Abstract: 1,150,303. Dimerization of acrylonitrile. MONSANTO CO. 11 July, 1966 [26 July, 1965], No. 31072/66. Heading C2C. [Also in Division C7] Acrylonitrile is electrohydrodimerized to adiponitrile in an electrolytic cell having a continuously circulated catholyte including an aqueous quaternary ammonium salt solution, acrylonitrile and reaction products, and a continuously circulated anolyte of aqueous sulphuric acid which is intimately contacted with a water insoluble organic solution of an amine having a molecular weight 250-500, e.g. a mixture of the secondary amines N-dodecenyl- or N-lauryl-N-trialkylmethylamine having molecular weights 350-400 dissolved in xylene, benzene or kerosene, to reduce corrosion of the anode, e.g. made of Pb, Pb-Ag, Pb-Sb, Pt or steel. Other examples of amine, including primary and tertiary, are specified. The amount of amine is preferably sufficient to produce a milliequivalency ratio of amine to deleterious ions, e.g. nitrate or (per)chlorate of at most 5À5. The amine loaded with deleterious ions, on separating from the anolyte, can be recharged by contact with NH 3  or NaOH solution. The anolyte and catholyte may be separated by a cation permselective membrane.
Patent GB-388128-A (GB)
Title: Improvements in valves for apparatus used in the production and treatment of coal-gas
IPC: C10K1/28
Filed: 1931-11-10
Abstract: 388,128. Gas-purifiers. CLAPHAM, T. A., Wellington Foundry, Keighley, Yorkshire. Nov. 10, 1931, No. 31097. [Class 55 (ii).] Independently actuated dual valves b, c, for use in gaspurification apparatus, are each provided with two faces 2, 3, respectively, to operate with separate seatings d<2>, d<3> and d4, d5 whereby the gas may be caused to flow through the material in one direction or the opposite. The valves are arranged at each side of a purifier box, and may be used in combination with two layers of purifying material.
Patent GB-288124-A (GB)
Title: Massaging instrument for treating the anal parts
IPC: A61H21/00
Filed: 1927-11-21
Abstract: 288,124. Burnier, M. H. March 31, 1927, [Convention date]. Rectal appliances; massage. - An anal massage device comprises a cylindrical member having an enlarged end 3 and formed of two or more separable portions 1 which are connected at the other end to the separating means which preferably comprises lever arms 2 pivoted at 7 and having handles 6. In one form, Fig. 3, the member is formed hollow and is provided with chamfered edges 5 to prevent the membranes being pinched, and with a flange 4 to prevent its entering too far. The rear portion of the member 1 may be of non-corrodible metal. or ebonite, or of rubber or other flexible material. The member 1 may be disposed at various angles with respect to the arms 2. In a modification, Fig. 7. gripping of the membranes by the member 13 is prevented by inflation of a rubber or other vessel 17 disposed therein, the vessel being connected by a tube 14 to an inflating bulb 15 which may be placed between the arms 2. The vessel 17 has an aperture 18 in which a lubricant such as oil or a medicated plug may be inserted, the lubricant being extruded on inflation of the vessel. In further forms the portions 1 of member are forced apa.rt by springs which are kept closed by a catch during introduction of the member into the anus. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the provision of a rubber cover for the cylindrical member to prevent pinching. This subject-matter does not appear in the Specification as accepted.
Patent GB-1431711-A (GB)
Title: Marking apparatus
IPC: D06H1/00
Filed: 1973-06-30
Abstract: 1431711 Marking garments J M ALPERIN 30 June 1973 31265/73 Heading A3V [Also in Division F2] Apparatus for marking garments includes fluid pressure-responsive means for sensing when an object to be marked is in position and means for expelling a marking substance. The apparatus includes a sensing orifice 13 connected via a back pressure sensing tee to an air supply. If a garment is placed over the orifice, the back pressure created is amplifled to discharge a cylinder into the powder box 11. The stroke of the cylinder can be adjusted via a knob 70 to vary the amount of powder expelled from marked opening 14. A scale 17 and slider 15 is provided so that the mark may be made at a predetermined distance from same reference e.g. one end of a waist band. In alternative arrangements the powder box may be replaced by a fluid container and the fluid discharged by in response to an electrical signal.
Patent GB-757405-A (GB)
Title: Change-speed mechanism
Inventor: SHORTLAND ARTHUR
IPC: F16H9/00
Filed: 1953-11-11
Abstract: 757,405. Change-speed gearing. MELLOR BROMLEY & CO., Ltd. Nov. 8, 1954 [Nov. 11, 1953], No. 31272/53. Class 80(2) An expanding gear wheel, pulley or sprocket comprises pairs of segments moved axially together, one after another, on a rotating member, to a position in which they engage a drive transmitting member such as a belt, chain or gear, to increase the effective diameter of the rotating member, and to another position in which they are out of engagement with the belt, &c., which then engages the rotating member directly. In the form shown in Figs. 9-11 arcuate segments 6 of channel cross-section engage a belt 3 and are mounted on pins 18 sliding in slots in the outer flange 12 of a rotating hub member 1. Each segment carries a bracket 22 passing through another slot in the flange 12 and secured to a rack 19 meshing a pinion 17 fast with a cam 15, having shoulders 16 and rotating about a pin 14. Pivoted levers 28, 29, connected by a link 27 and mounted on a stationary support, are mounted so that one or other of them can engage a cam shoulder 16, according to which way they are tilted, and thus, as the wheel rotates, engage each of the cams 15 in sequence. The pinions 17 are accordingly turned, and, through the rack and pinion gearing, cause the segments 6 to be moved towards or away from each other, to increase or decrease the effective diameter of the wheel. The levers 28, 29 are arranged in such a position that they cause the segments 6 to move immediately before the rotation of the wheel engages them with the belt &c. In a modification (Figs. 12, 13, not shown), the segments 6 have external teeth engaging a chain and slide on external splines on the flange 12. Wheels according to the invention are described as transmitting drive via a belt kept in tension by a spring-biased jockey pulled to a fixed diameter pulley, and to a second wheel according to the invention without the interposition of a jockey pulley. Six wheels according to the invention are described in series to give sixtyfour changes in ratio. According to the Provisional Specification, instead of the cam mechanism described for moving the segments axially, electromagnetic or electronic means may be used.
Patent GB-1438443-A (GB)
Title: Growth promotion composition and method
IPC: A23K1/165
Filed: 1974-07-16
Abstract: 1438443 Growth-promoting composition UPJOHN CO 16 July 1974 (2 Aug 1973] 31346/74 Heading A5B The proteinaceous weight gain of a domestic fowl consuming a diet containing more than 19% by weight of protein is promoted by administering to the fowl from 0.001 to 2 parts by weight per millionparts by weight of the diet of a compound of the formula:- wherein R is C1 to C4 alkyl. The compounds may be administered parenterally, subutaneously or, preferably, with the diet. The diet for male chickens preferably contains more than 25% by weight of protein and that for female chickens contains not more than 23% by weight of protein. The preferred compound of formula I is mibolerone (R = methyl).
Patent GB-687032-A (GB)
Title: Improvements in derivatives of pyrimidine
IPC: A61K31/00
Filed: 1950-12-27
Abstract: The invention comprises 5-benzyl-2 : 4-diamino pyrimidines of the formula <FORM:0687032/IV (b)/1> wherein X is a chloro, bromo or nitro radical and R is hydrogen or a methyl radical.  They are prepared by condensing with guanidine or a salt thereof a compound of the formula <FORM:0687032/IV (b)/2> wherein R1 is a lower alkyl radical and Y may be X or a group convertible to X, that is Y may be hydrogen which is convertible to nitro by nitration, and converting the resulting aminohydroxy pyrimidine to the corresponding 2 : 4-diamino-pyrimidine, followed by conversion of Y into X if necessary.  In examples: (1) the ethyl ester of a -formyl-p-chlorocinnamic acid (formed by the reaction of ethyl-p-chlorocinnamate with ethyl formate in the presence of sodium) is reacted with guanidine hydrochloride and the resultant 2-amino-4-hydroxy-5-p-chlorobenzylpyrimidine is treated with phosphorus oxychloride followed by ammonia to give 2 : 4-diamino-5-p-chlorobenzylpyrimidine; (2) a  - p - chlorobenzylacetoacetic ester (prepared by the action of ethylacetoacetate on p-chlorobenzyl chloride in the presence of sodium ethoxide) was treated with guanidine carbonate to give 2-amino-4-hydroxy-5-p-chlorobenzyl - 6 - methylpyrimidine which was treated with phosphorus oxychloride and ammonia to give 2 : 4-diamino-5-p-chlorobenzyl-6 - methylpyrimidine; (3) 2 : 4 - diamino - 5 - p - bromobenzyl-6-methylpyrimidine was prepared by the method of (1); (4) 2-amino-4-hydroxy-5-benzylpyrimidine was chlorinated and aminated as in (1) to give 2 : 4-diamino-5-benzylpyrimidine which was nitrated to 2 : 4-diamino-5-p-nitrobenzylpyrimidine; and (5) ethyl-p-nitrobenzylacetoacetate was condensed with guanidine and the resultant 2 - amino - 4 - hydroxy - 5 - p - nitrobenzyl - 6 - methylpyrimidine converted to 2 : 4 - diamino - 5 - p - nitrobenzyl - 6 - methylpyrimidine, this compound was also prepared by nitrating 5 - benzyl - 2 : 4 - diamino - 6 - methylpyrimidine.  Specification 598,514 is referred to.
Patent GB-393853-A (GB)
Title: Improvements in shock absorbers or movement cushioning devices
IPC: F16F9/26
Filed: 1932-11-08
Abstract: 393,853. Shock-absorbers. AKTIEBOLAGET SVENSKA STOTDAMPAREFABRIKEN, 81, Birger Jarlsgatan, Stockholm. Nov. 8, 1932, No. 31509. Convention date, Aug. 19. [Class 108 (iii).] A shock-absorber includes a reciprocable piston 4 divided along a surface or surfaces with a slot or space 16, between adjacent surfaces, so that movement of the piston causes the fluid in the shock-absorber casing to force the piston parts into contact with the cylinder walls to brake the movement of the piston. In one form, the ends of the piston are provided with conical recesses 15 to assist the above action. The cylinder is provided with a split lining adjustable by means of screws 14 and the casing is made in two halves 1, 2, held together in clamps 10. The cylinder is partly filled with oil so that the working fluid consists of an emulsion of air and oil. The coacting piston surfaces may be grooved or left rough machined.
Patent GB-1480664-A (GB)
Title: Printing apparatus for documents with information stripe
IPC: G06Q40/00
Filed: 1975-07-28
Abstract: 1480664 Document printing and reading system BUNKER RAMO CORP 28 July 1975 [31 July 1974] 31536/75 Heading G4M A document such as a bank pass book having control information on a stripe, e.g. of magnetic material, is used to control a printing system containing a transducer head used to read the the information from the stripe. The document (20) is inserted into a guide or shoot 40 and is clamped in a holder 46 in an initial stripe reading position. The document is backed by a platen which acts to straighten creased documents and which has an aperture through which extend transducer heads. The aperture also contains pivotally mounted arms engageable with the document to prevent the document from engaging the edges of the aperture. The document is inserted with the stripe at the rear of the document and the page to be printed on facing a printing head. A photo-detector operated when the document is positioned actuates a solenoid clamp 55 to clamp the document. The transducer head, e.g. a magnetic read-write head is mounted on a carriage 76 by a spring-loaded mechanism 74 which accommodates surface variations in the document. The carriage has a surface engaged by a ramp which retracts the transducer away from the stripe at one end of the stripe. The carriage is driven by motor 80 and its position is detected by photo electric sensors 92, 94, 96 interrupted by an arm 86. The magnetic read-write head has separate read and write gaps and the write gap is wider than the read gap so that alignment of heads on different machines need not be exact. Data from the stripe is stored in a register and defines the line to be printed. The data is decoded to light one of a plurality of light emitting diodes 120 and the holder 46 and document are moved by belt 110 and stepper motor 100 until a photo sensor 130 on the holder detects the one of the diodes. The holder is then accurately positioned using data from a store which contains phase relationships for the windings of the motor. The holder may be moved manually approximately to the desired position with the memory then providing accurate positioning.
Patent GB-1294318-A (GB)
Title: Dockboard installations
Inventor: LOBLICK DERMONT FRANKLIN
IPC: B65G69/28
Filed: 1969-07-04
Abstract: 1294318 Valves D F LOBLICK 30 June 1970 [4 July 1969] 31591/70 Divided out of 1294316 Heading F2V [Also in Division B8] A valve used for controlling a dockboard operating ram (see Division B8) includes an adjustably spring biased valve member 40 slidable within a stepped bore in a body part 35 and adapted at various positions of movement along the bore, as determined by the pressure supply, to couple either a fluid pressure inlet 50 through a non-return ball valve 29a to the ram supply outlet 51, or the outlet 51 through a bore 56 to an outlet 52 to reservoir. Excessive fluid pressure supplied to the valve causes the member 40 to move into a position coupling the inlet 50 directly to the reservoir outlet 52 through bore 58.
Patent GB-1069148-A (GB)
Title: Improvements in conveyors
IPC: B65G47/26
Filed: 1964-08-04
Abstract: 1,069,148. Roller conveyers. MECHANICAL HANDLING SYSTEMS Inc. Aug. 4, 1964 [Aug. 5, 1963], No. 31637/64. Heading B8A. Rollers supporting a load interrupted in its movement on a live roller conveyer are moved upwardly and rearwardly to be disengaged from the drive. Fig. 3 shows an endless drive belt B supported by a pressure roller 23 against a conveyer roller 13. Shafts 14 24 of the conveyer roller 13 and the pressure roller 23 are mounted at each end in arms 17 of sheet metal with its lower end shaped as an arc 18 and with a tab 19 extending into an opening 20 in the conveyer frame. The arrangement is such that an unimpeded load passing along the conveyer holds the conveyer roller 13 in contact with the drive belt B (broken lines). When a load on the conveyer is impeded the roller 13 tracks beneath it causing the arms 17 to swing counterclockwise swinging the conveyer roller 13 upwardly and rearwardly away from the drive belt B while the pressure roller 23 moves downwardly and rearwardly away from the belt B so that the drive to the conveyer roller 13 is completely interrupted. When the obstacle to movement of the load is removed the weight of the roller 13 returns the rollers 13, 23 into the drive position. In the modification illustrated in Fig. 8 pressure rollers 34 are mounted in the conveyer frame (not shown) while each conveyer roller 30 is mounted with a bushing on its shaft engaging the inclined bottom 34 of slots 32 in side frames 33. As shown in full lines, with an unimpeded load the conveyer roller 30 is driven by the belt B, but the conveyer roller 30 tracks under the load, out of engagement with the belt B, when the load is impeded (broken lines). Figs. 9 and 10 show a further modification where each conveyer roller 40 is mounted in a pair of slots 42, each with an inclined bottom surface 42 and is driven by engagement with a pair of narrow drive rollers 45, one at each end of the conveyer roller 40. The drive rollers 45 are driven by a chain 47 engaging sprockets 46 and operate after the manner described with reference to Fig. 8.
Patent GB-868133-A (GB)
Title: Equipment for use in concentric lines and serving to change their reactance
IPC: H01P1/24
Filed: 1957-10-11
Abstract: 868,133. Impedance networks. STANDARD TELEPHONES & CABLES Ltd. Oct. 11, 1957 [Oct. 18, 1956], No. 31785/57. Class 40(8) [Also in Group XL(a)] The characteristic impedance of a section of coaxial line is adjusted by varying the spacing between the conductors. This is done by means of a curved conductive lamina D, Fig. 1, which extends over the length L of the section and is hinged to a longitudinal pivot C arranged either on the outer or inner conductor and accessible for adjustment from outside the section. The section shown is short-circuited at one end by a conductive diaphragm E 2  and is provided at its input end with a further diaphragm E 1  which is connected to one of the conductors and spaced from the other by an annular gap. The lateral edges of the lamina D are shaped and disposed to form either a conductive or capacitative connection with the two diaphragms. Both diaphragms E 1 , E 2  are provided with a gap when the section is connected to transmission lines at both ends. More than one pivoted member may be used. Fig. 3 shows the extreme positions of adjustment of two laminae D 1 , D 2  hinged at C 1 , C 2  to an outer conductor of square section.
Patent GB-816646-A (GB)
Title: Improvements in or relating to dressing tools
IPC: B24B53/12
Filed: 1957-10-11
Abstract: 816,646. Diamond tools. ENGINEERING DIAMONDS Ltd., and ALLEN, R. Oct. 11, 1957, No. 31804/57. Class 124. A diamond or like cutting element for use in a dressing tool is formed in the shape of a pyramid the base of which has a major axis longer than a minor axis normal thereto. As shown, the base of a diamond cutting element may be a parallelogram having a major axis twice as long as a minor axis, and, in the plane containing the minor axis and the apex, may be shaped to the required profile. Instead of diamond, the element may be made of sapphire, tungsten carbide, or silicon carbide.
Patent GB-679657-A (GB)
Title: Improvements in electric smoothing irons
IPC: D06F75/24
Filed: 1949-12-12
Abstract: 679,657. Retractive switches. CHESSIN, M., and MUNSCHAK, U. Z. Dec. 12, 1949. [Dec. 13, 1948] No. 31893/49. Class 38 (v). [Also in Groups VIII and XI] An electric steam iron (see Group VIII) having separate heating elements for its boiler and sole plate, is provided with a switch 32 for switching off the boiler element when the iron is supported in an up-ended rest position. The switch 32 comprises silver contacts 47 carried by springs 46. A small porcelain ball 44 supported by a spring 45 on the inner side of the iron cover 27 abuts against the supporting surface and is pushed in by the weight of the iron so as to separate the contacts 47.
Patent GB-282365-A (GB)
Title: Improvements in or relating to processes for the production of pure iron
IPC: C21C7/06
Filed: 1927-11-26
Abstract: 282,365. Royen, H. J. van. Dec. 14, 1926, [Convention date]. Purifying.-In the manufacture of pure iron by means of a blast or open-hearth refining process, a reducing non-carbonizing gas, which is not subject to any alteration in volume when oxidized and containing carbon monoxide and carbon dioxide in proportions varying between 2.5 and 7 parts of carbon monoxide to 1 part of carbon dioxide, is blown through the metal bath. The mixture may contain 25-35 per cent of carbon monoxide, 5-10 per cent of carbon dioxide, and the remainder a neutral gas such as nitrogen. The bath in the converter or open-hearth furnace may be provided with a new layer of slag after the ordinary refining process, and the bath blown in the ordinary way until all the carbonaceous material has been consumed before the introduction of the reductive gas. The iron may be used for the manufacture of alloyed or unalloyed steel. In the case of carbon steels, the bath may be worked with saturated aliphatic hydrocarbons as described in Specification 282,366.
Patent GB-1224947-A (GB)
Title: Improvements in or relating to structures containing enzymic material
IPC: D01F1/10
Filed: 1969-06-24
Abstract: 1,224,947. Insolubilized enzymes. SNAM PROGETTI S.p.A. 24 June, 1969 [26 June, 1968; 8 May, 1969], No. 31903/69. Heading C3H. A filament formed of a polymeric material encloses a plurality of minute regions of an enzyme or enzyme-containing material. The polymer may be nitrated, esterified or etherified cellulose; polymers and copolymers from butadiene, isoprene, acrylonitrile, acrylates, methacrylates, vinyl esters, vinyl chloride, vinylidene chloride or styrene; polyamides; polyvinyl butyral; or mixtures thereof. The enzyme may be urease, invertase, lactase, ribonuclease, acylase, transaminase, glucose-oxidase, catalase, arginase, papain, carboxy-peptidase or glucoamylase. The filament may be formed by emulsifying an aqueous solution of the enzyme with an organic solution of the polymer, and spinning through a spinneret.
Patent GB-1118797-A (GB)
Title: Improvements in or relating to the purification of halogenated hydrocarbons
Inventor: CARSON SAMUEL CORBETT
IPC: C07C17/38
Filed: 1965-07-27
Abstract: Bromine contaminant is removed from chlorinated hydrocarbons containing as an essential component at least one of CHCl3, CCl4, C2HCl3 and C2Cl4, by contacting the contaminated chlorinated hydrocarbon with a phenol or aniline.  Other chlorinated hydrocarbons may also be present. After removal of the bromine by reaction with the phenol or aniline the chlorinated hydrocarbon may be recovered from excess of the phenol or aniline or brominated derivatives thereof by distillation. The contaminated chlorinated hydrocarbons treated may be obtained by chlorination of chlorinated hydrocarbons containing brominated hydrocarbons as impurities, the latter mixture being obtained by chlorination of hydrocarbons.