baber/WOPTO huggingface dataset:
Patent GB-917025-A (GB)
Title: Anti-static linear polycondensates and preparation of the same
IPC: C08G69/00
Filed: 1959-08-07
Abstract: Anti-static polyamides are made by condensing a diamine of the formula <FORM:0917025/IV(a)/1> with a dicarboxylic acid of the formula HOOC-A-COOH, or by condensing a dicarboxylic acid of the formula <FORM:0917025/IV(a)/2> with a diamine of the formula H2N-A-NH2 or by self condensing an aminocarboxylic acid of the formula <FORM:0917025/IV(a)/3> where A is <FORM:0917025/IV(a)/4> where n is an integer of from 1 to 12 and m is 0 or 1, R and R1 are hydrogen or methyl, R1 and R2 are from 1 to 12 methylene groups and <FORM:0917025/IV(a)/5> is a cyclohexyl radical.  Many piperazine ring-containing diamines, dicarboxylic acids and amino acids and co-reactants therefore are specified.  The ring nitrogen atoms may be quaternized before or after the preparation of the polyamides by reaction with organic or inorganic acids or halogenated organic compounds, many of which are specified.  Many examples of the process of the invention are given, typical polyamide-forming reactants being:-N:N1-bis(g -aminopropyl)-piperazinium adipate; N:N1-bis(b -aminoethyl) piperazinium sebacate; N:N1-bis(g -aminopropyl)-2:5-dimethyl piperazine and tere-phthalic acid; piperazine-N:N1-diacetic acid and nonamethylene diamine; piperazine-N:N1-dicaproic acid and phenylene diamine; piperazine-N-aminomethane)-N-acetic acid; N:N1-bis(g -aminopropyl)-2:5-dimethyl piperazine, adipic acid and S -caprolactam; piperazine-N:N1-dipropionic acid, S -caprolactam and hexamethylene diamine; N:N1-bis(aminoethyl)-piperazine, adipic acid and ethylene diamine; piperazine-N:N1-dipropionic acid, adipic acid and hexamethylene diamine; piperazine-N(aminoethane)-N-acetic acid and S -caprolactam and piperazine-N(b -aminoethane)-N-propionic acid and aminoenanthic acid; typical quaternizing agents being hydrochloric, hydrobromic, sulphuric and acetic acid and benzoyl chloride.
Patent GB-188892-A (GB)
Title: Wood working tool
IPC: B25F1/00
Filed: 1921-10-12
Abstract: 188,892. Shugart, F. R. Oct. 12, 1921. Nail extractors.-A portion of the handle eye 1 of a combined hatchet, adze and draw-knife is pressed up to form a nail extracting claw 12 which is arranged to fall within the line joining the edge 4 of the. hatchet 3 and the curve 12<1> of the adze blade 5.
Patent GB-298770-A (GB)
Title: Improvements in type cases and type distributing means
IPC: B41B3/00
Filed: 1927-10-13
Abstract: 298,770. Adams, R. C. Oct. 13, 1927. No Patent granted (Sealing fee not paid). Type cases. - In type cases or magazines, in which the type gravitate in channels towards discharge recesses, and in which type can be delivered to the upper ends of the channels from a distributing-stick, adjustable abutment bars for the distributing-stick are provided, and are positioned in accordance with the size of the type to be admitted to, or extracted from the channels. The magazine comprises channels 2, Fig. 1, having flanged walls to engage recesses in the sides of the type, the channels having discharge recesses 5 at their lower ends. A series of abutment bars 6, Fig. 3, which are adjustable by means of set-screws 10, are arranged at the back of the magazine, and have at their lower ends type stop elements 8, which project into the discharge recesses 5, and support the columns of type at a height permitting the extraction of a single type from each channel. The upper ends of the bars 6 project at varying distances above the tops of the channels in accordance with the thickness of the type to be delivered to each channel. The distributing- stick comprises a type-channel 15, Fig. 8, carried by a casing 18, and having at its lower end a pivoted section 16. Upon the casing 18 slides a channel-member 19, having an inclined slot which engages a stud on the pivoted section 16 of the type-channel, so that, when the member 19 is depressed, the section 16 is rocked out of alignment with the channel 15, as shown in Fig. 12. An adjustable type-stop 27, controlled by a spring 29, projects into the section 16, When the distributing-stick is applied to the magazine, it is held by projections 30, 31 in register with the selected channel, and the stop 27 is positioned by engagement with the upper end of the corresponding abutment-bar 6, so as to leave only the bottom type within the pivoted section 16. When the section 16 is rocked, the bottom type is disengaged from the stop 27, and is allowed to fall into the magazine. Indexes 33, Fig. 1, are provided at the upper and lower ends of the magazine. The abutment-bars 6 may be replaced by a plate having an irregularly-shaped upper edge in sections corresponding to the magazine channels, or the upper ends of the channels themselves may be so formed. The distributing-stick may have a fixed instead of a sliding stop, when type of uniform width are dealt with. The types are extracted from the discharge recesses 5 by means of a forked composing-stick, or channel-shaped ejector-members 44, Fig. 14, may be pivoted at the lower ends of the channels and rocked by pressure from a composing-stick, so as to extract a single type.
Patent GB-1140406-A (GB)
Title: Method and apparatus for electrostatic separation
IPC: B03C7/10
Filed: 1967-06-13
Abstract: 1,140,406. Electrostatic separators. NATIONAL ENG. CO. OF CANADA Ltd. 13 June, 1967 [21 Nov., 1966], No. 27178/67. Heading B2J. Apparatus 10 for separating from a particulate mixture particles having dissimilar contact potentials comprises a stack of inverted V-shaped dividers 25, 40, 45 with shorter and longer legs facing opposite sides of the stack. Contact feeders 17, 35, 43 along one side of the stack support the particles, and electrodes 29, 41, 46 along the other side deflect and attract particles as they fall over the edges of the contact feeders, so that the attracted particles flow along the surfaces of the longer legs of the dividers. After a final stage 47, 50, 51 the separated particles are removed by screw conveyors 57, 69. The dividers and contact feeders may be made of or surfaced with dielectric abrasion-resistant surfaces. Each short leg has an end projection to assist particle build-up on its surface. The contact feeders may be curved, provided the particles build up to a pile having a natural angle of repose.
Patent GB-923303-A (GB)
Title: Process for the purification of gases
Inventor: QUIN JAMES PATERSON
IPC: C01B7/01
Filed: 1960-08-05
Abstract: Hydrogen fluoride impurity is removed from impure hydrogen chloride by intimate contact with silica gel at a pressure of at least 50 p.s.i.g.  Impure hydrogen chloride is passed at 15 DEG C. and 100 p.s.i.g. through a steel pipe packed with silica gel.
Patent GB-1390252-A (GB)
Title: Process for preparing piperidine derivatives
IPC: C07F5/04
Filed: 1972-01-31
Abstract: 1390252 Piperidine compounds; borates SANKYO CO Ltd 31 Jan 1972 [29 Jan 1971] 27221/74 Divided out of 1390251 Headings C2B C2C and C2P [Also in Division C3] Piperidine compounds of general Formula I wherein R<SP>1</SP> and R<SP>2</SP> may be the same or different, and each represents an alkyl group having from 1 to 4 carbon atoms; or R<SP>1</SP> and R<SP>2</SP>, together with the carbon atom to which they are attached, constitute a saturated alicyclic group or a group of the formula X represents a hydrogen atom, an oxygen free radical, or an alkyl group having from 1 to 4 carbon atoms; = 1, 2, 3 or 4; and when n = 1 R 3  represents an acyl group derived from an aliphatic or aromatic monocarboxylic acid; when n =2 R<SP>3</SP> represents a diacyl group derived from an aliphatic or aromatic dicarboxylic acid, or a carbonyl group; when n = 3 R<SP>3</SP> represents a triacyl group derived from an aliphatic or aromatic tricarboxylic acid, or a trivalent group derived by removal of three hydroxyl groups from phosphoric acid, phosphorous acid or boric acid; and when n =4 R<SP>3</SP> represents a tetraacyl group derived from an aromatic tetracarboxylic acid, or a tetravalent group derived by removal of four hydroxyl groups from orthosilicic acid; or a salt thereof, are prepared by reacting a 4- piperidinol derivative of formula with an ester of formula in the presence of an alcoholysis catalyst (wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, X and n have the meanings already given, and R<SP>4</SP> represents C 1 -C 3  alkyl) and, if appropriate, salifying the reaction product.
Patent GB-875165-A (GB)
Title: Drying apparatus with circular superposed drying floors
IPC: F26B17/00
Filed: 1957-08-29
Abstract: 875,165. Drying apparatus. SOC. ITALIANA ESSICCATOI. Aug. 29, 1957 [Sept. 3, 1956; Sept. 21, 1956], No. 27264/57. Class, 34(2) In a drier with circular superposed drying floors each floor is swept by hot air issuing from an oscillating nozzle. In the drier shown having fixed perforated floors 1 ... 4, Fig. 1, mounted within a cylindrical casing A, hot air from a conduit 18 is introduced to the soaces between the floors 2, 3 and 4 through nozzles 23, 24, 25, oscillating about a shaft 26 oscillated through a suitable eccentric connection by a motor driven shaft 9. At the limits X, Y, Fig 2, of its amplitude each nozzle directs air tangentially into the casing A and an air seal between the nozzle and its supply conduit 19, 20 or 21, is effected by hinged side fins 30 guided by oscillatable arms 32. A fan 22 withdraws the moisture laden air from the drier. The shaft 9 rotates paddle sets 10, 12, 14, 15, rotation of the set 10 also effecting movement of a paddle 7 in a channel 6 which is supplied with moist material through an inlet 5. The paddles 10, 14, cause the material to move over the floors 1, 3, towards central outlet arrangements comprising cylindrical adjustable 'weirs' 35, Fig. 3, whilst the paddles 12, 16, move the material to peripheral outlets having adjustable plate 'weirs' 39. Dried material is discharged at 17. In a modified apparatus B, Fig. 5, for drying pasty materials and slurries and having perforated floors 45, 50, 54, 61, 65, 66, the material is fed on to the top floor 45 through perforated arms 44 rotating with the paddles 63, 67, 68, 79 and press members in the form of tapered rollers 46, 51, 55, also rotating with the paddles, are associated with the upper floors 45, 50, 54. Moisture laden air is withdrawn by fans 74, 75, the air from the latter being returned to the supply means feeding the air inlet conduit 49 for eventual recirculation. In a further embodiment the floors associated with the tapered rollers are rotated with the paddles whilst the rollers are connected through their supporting arms to the drier casing. The perforated material feed arms 44 are also stationary.
Patent GB-209202-A (GB)
Title: Apparatus for controlling the movements of vehicles on railways
IPC: B61L3/08
Filed: 1922-10-09
Abstract: 209,202. Ruthven, A. L. Oct. 9, 1922. Rail-cleaners. - Scrapers 88 are carried bypistons 87 in cylinders 85 to which compressed air is admitted when a valve 82 operating the sanding apparatus is opened. The pistons are normally withheld from the rails by springs. A valve 90 loaded against the pressure admitted by the valve- 82 ensures operation of the scrapers.
Patent GB-900571-A (GB)
Title: Improvements in and relating to polyvinyl compounds
IPC: C08F18/08
Filed: 1958-08-26
Abstract: Polyvinyl acetate having a substantially stable degree of polymerization when subjected to alcoholysis is prepared by subjecting vinyl acetate to ionizing radiation in the absence of oxygen or other such reactive substance at a temperature below that at which thermal polymerization occurs, e.g. below 50 DEG C. Polyvinyl alcohol of corresponding degree of polymerization is prepared by hydrolysis.  In an example vinyl acetate is irradiated under vacuum with 225,000 roentgen equivalent physical of gamma radiation from a cobalt 60 source at 0 DEG C. and the polyvinyl acetate obtained from a 25% conversion of the monomer.  The polymer was hydrolysed in ethyl alcohol by sodium hydroxide to yield a polyvinyl alcohol having an average degree of polymerization of 4,700.  Alpha, beta or X-radiation may alternatively be employed. U.S.A. Specification 2,499,924 is referred to.
Patent GB-242304-A (GB)
Title: Braking mechanism for the wheels of motor vehicles and the like
IPC: F16D49/10
Filed: 1925-10-30
Abstract: 242,304. Franþon, J. Nov. 3, 1924, [Convention date]. Brakes, arrangement and disposition of, and braking.-Relates to brakes for the steering wheels in which provision is made for transmitting the braking stresses to the chassis. The brake band 7, Figs. 1 and 2, is fixed to a memher S pivoting about an axis 9 coaxial with the steering pivot. The axis 9 is pivotally held by an adjustable link 20, Fig. 3, fixedly or resiliently attached to the chassis, and by a spring link 24a also attached to the chassis and adapted to take side stresses. The member 8 has a slot 11 for a pin 10 adapted to roll on rings 5, 6 rotatable on the brake drum 1. The ends of the brake band 7 are connected' together by link- and-pivot mechanism 16, Fig. 2, which is connected by an extension 18 of one of the links at a point 19 to a casing 12 attached to the rings 5, 6. The brake-operating cable 28 is also attached at the point 19 which is coaxial with the steering pivot. In a modification, shown in Fig. 5, the brake device is supported on a flange 59 of drum 51 which is supported on ball bearings or rings on the hub 50 within the brake drum 1.
Patent GB-1103487-A (GB)
Title: Catalyst production method
Inventor: BRIDGER GEORGE WALTER
IPC: B01J23/84
Filed: 1964-07-02
Abstract: Desulphurization is effected in the presence of a catalyst containing oxides of metals of Groups IIa, VIb and VIII of the Periodic Table but substantially no alkali metal compound which is made by mixing with a dry powdered acidic oxide of a metal of Group VIb (e.g. MoO3 or WO3) or a precursor therefor a dry powdered solid optionally hydrated but not dead burnt acidic or amphoteric oxide and an oxide of a metal of Group IIa (e.g. MgO) or a precursor therefor, the latter being added dry or wet and, if wet, added after the two previously mentioned ingredients have been mixed dry, adding wet or dry a salt of a base metal of Group VIII (Ni and Co are specified) and adjusting if necessary the composition to a shapeable consistency.  Examples describe the desulphurization of (1) a light petroleum distillate (boiling point 40-170 DEG  C.); and (2) naphtha of similar boiling point.ALSO:A method of producing a hydrocarbon conversion catalyst containing oxides of metals of Group II A, VI B and VIII of the Periodic Table but substantially no alkali metal compound, comprises mixing with a dry powdered acidic oxide of a metal of group VI B (e.g. MoO3 or WO3) or a precursor therefor a dry powdered solid optionally hydrated but not dead burnt acidic or amphoteric oxide and an oxide of a metal of Group II A (e.g. MgO) on a precursor therefor, the latter being added dry or wet and, if wet, added after the two previously mentioned ingredients have been mixed dry, adding wet or dry a salt of a base metal of Group VIII (Ni and Co are specified) of the Periodic Table and adjusting if necessary the composition to a shapeable consistency.  Additionally the catalyst may contain a water-soluble polymer (e.g. a cellulose derivative or starch) or a water swellable clay e.g. bentonite.  The catalysts may be reduced and/or sulphided before use.
Patent GB-485356-A (GB)
Title: Improvements in and relating to vacuum-tight connections between ceramic material and metal
IPC: C04B37/02
Filed: 1937-10-08
Abstract: 485,356. Uniting metal to ceramic material by heat. BRITISH THOMSONHOUSTON CO., Ltd. Oct. 8, 1937, No. 27397. Convention date, Oct. 13, 1936. [Class 36] A method of producing a vacuum-tight connection between metal and a ceramic material consists in alloying with the basic metal another metal or metals capable of entering into chemical combination with the ceramic surface and then fusing the metal on to the ceramic material. The basic metal may consist of silver, copper, or aluminium, which are combined with a few per cent of silicon, manganese, tin, lithium, or phosphorus. A silver-manganese or silver-silicon alloy are used for melting on to a porcelain body when the operations are performed in an oxidizing atmosphere. A reducing - atmosphere or a vacuum furnace are preferably employed when the metal is fused to magnesium-silicates, e.g. steatite or similar materials which release oxygen when heated up.
Patent GB-840444-A (GB)
Title: Antenna unit
IPC: H01Q3/14
Filed: 1957-08-30
Abstract: 840,444. Directive radio systems. STANDARD TELEPHONES & CABLES Ltd. Aug. 30, 1957 [Aug. 31, 1956], No. 27408/57. Class 40 (7). An aerial system having a rotatable directive polar diagram consists of a vertically - disposed antenna, such as the fat dipole 1, capable of radiating vertically-polarized waves, and a plurality of vertical conductive strips 8 arranged coaxially round the antenna, each strip being in at least two portions (as shown in three portions 9, 10 and 11, separated by aligned gaps 15 and 16). Coupling- means rotatable around the antenna in the vicinity of the gaps are provided to capacitively couple together the portions of one or more of the conductive strips to form a reflector element or elements. The coupling means shown consist of the rotatable insulating discs 13 and 14 attached to the outside of radiation transparent tube 12 surrounding the antenna 1 and rotated by motor 19. Each disc carries a conductive peripheral member, 17 or 18, and a counterbalance weight 22. The members 17 and 18 capacitively couple together the portions of the strips against which they lie to form a group of parallel reflecting strips and the centre lengths 10 of the strips elsewhere round the antenna are chosen to be of such length that they act as directors. If the members 17 and 18 extend 120 degrees round the antenna a sharp single lobe directive pattern results (Fig. 3, not shown). It is also possible to use more than one member 17, 18, on each disc 13 and 14. For example, if two, each extending over 30 degrees and separated by 30 degrees, are used a twin-lobed pattern is obtained (Fig. 4, not shown) whilst three, arranged to extend over about 120 degrees in all, including the gaps between them, will give a three-lobed pattern (Fig. 5, not shown). Where a plurality of conductive members are used on each disc it is preferred to couple them by inductances (Fig. 2A, not shown). The strips 8 are preferably mounted on a stationary cylinder 7 of ceramic or fibre-glass material and may conveniently be stripes of silver material fixed on a ceramic cylinder at regular intervals. The fat-dipole, capable of wide-band reception, is provided with a central coaxial feeder 2 led out through cylinder 12 and motor 19. If the aerial system is to be used for direction-finding purposes the feeder 2 is connected to a receiver and amplifier 26 feeding the rotor coil 25 of a phase-meter 24 through a highimpedance transformer 27. The stator coils 23 of the phase-meter are energized with reference signals from an alternator 21 driven by motor 19 in synchronism with the aerial rotation. Specification 772,120 is referred to.
Patent GB-1132689-A (GB)
Title: Method for controlling the temperature of an exothermic reaction and apparatus therefor
Inventor: POHL KURT
IPC: B01J19/00
Filed: 1967-06-14
Abstract: 1,132,689. Adipic acid. VICKERS-ZIMMER PLANTING UND BAU VON INDUSTRIEANLAGEN A.G. 14 June, 1967 [14 June, 1966], No. 27475/67. Heading C2C. [Also in Division B1] Adipic acid is produced by the aqueous nitric acid oxidation of a mixture of cyclohexanol and cyclohexanone in the liquid phase at a temperature of less than 90‹ C. (optimum 75‹ C.) in which control and isothermal maintenance of the reaction is accomplished by continuously bleeding a portion of the reaction mixture from the reaction zone during the course of the reaction and indirectly contacting it with a boiling heat exchange medium, of boiling point not more than 100‹ C. as measured at a pressure of 760 mm. Hg, the temperature of the boiling heat exchange medium being controlled so that adipic acid does not crystallize from the bled portion of the reaction mixture and returning the bled portion to the reaction zone. The temperature of the boiling heat exchange medium, which may be, e.g. water, methanol, ethanol or isopropanol, may be controlled by adjusting the pressure thereon, in response to the temperature of the reaction mixture.
Patent GB-929522-A (GB)
Title: Flavone derivatives and improved method of preparing same
IPC: C07D311/30
Filed: 1961-07-28
Abstract: The invention comprises flavone derivatives of the general formula: HOOC-CH(R)-O-C15H(9-n)O2(OH)n (wherein R = H or CH3 when n = 1 and R = CH3 when n = 0, the HOOC-CH(R)-O- group being in position 7 of the flavone nucleus, and the (OH)n=1 group being in the position 5 or 41) also the corresponding alkali and alkaline earth metal salts, and a process for their preparation by condensing the corresponding 7-hydroxy flavone derivative with an acid HOOC-CH(R)-Hal (wherein R = H or CH3 and Hal is chlorine or bromine) in the presence of NaOH or KOH and isolating the flavonoxy acid by acidification with dilute HCl, and further relates to flavone 5,7-di (oxyacetic) acid and its alkali and alkaline earth metal salts and their preparation by condensing 5,7-dihydroxy flavone with \sF 2 molecular proportions of bromoacetic acid.  The di (oxyacetic) derivative is separated from the mono (oxyacetic) derivative by means of the greater solubility of its ammonium salt.  The compounds have a beneficial action on the tissulo-vascular resistance and are pro-vitamin P factors; they may be formulated with conventional therapeutic carriers and diluents for administration orally or parenterally, e.g. as tablets, injectable solutions, suppositories or pomades.
Patent GB-519679-A (GB)
Title: Improvements in and relating to window structures applicable to caravans or the like
IPC: B60H1/26
Filed: 1938-09-22
Abstract: 519,679. Ventilators. ENSOR CARAVANS, Ltd., and ENSOR, C. A. Sept. 22, 1938, No. 27600. [Class 137] A ventilator serving, as a window, and adapted for caravans or like road vehicles, comprises an inner window I adapted to swing inwardly into an open position on an horizontal axis, and an outer transparent louvre 7, air currents entering being diverted upwards into the vehicle. The window 1 pivots in a guttered seating 2, and has cheeks 4 acting as stops.
Patent GB-666750-A (GB)
Title: Camping-trailer for motor-vehicles
IPC: B60P3/34
Filed: 1949-10-27
Abstract: 666,750. Collapsable vehicles. PERONACI, A. Oct. 27, 1949, No. 27614/49. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 6, 1950.] Class 108(i). A camping trailer has two body parts 1, 2 hinged along their lower outer edges to a wheeled chassis so that they be opened outwards to form the supports 11, 13 for camp beds 12. Framework 14, 15, 21, 23 and 24 serve as supports for a tent and fiysheet, the lower edges of the tent being lashed to the rails 3.
Patent GB-603513-A (GB)
Title: Improvements in end construction for paper containers
Filed: 1945-10-22
Abstract: 603,513. Tubular containers. DEHN, F. B. (Standard Container, Inc.). Oct. 22, 1945, No. 27804. [Classes 18 and 66] The end of a tubular paper container B has an adhering paper strip 5 about one edge of which is folded a flange 4, Figs. 3 and 5, of a metal ring 1 which is locked at 3 to the end-closure 9. The metal ring may be constituted as the wall 15, Fig. 8, of a dished disc 18 interlocking at 19 with the end closure.