baber/WOPTO huggingface dataset:
Patent GB-904189-A (GB)
Title: Improvements in or relating to electrical terminal assemblies
Inventor: CHANDLER WALTER
IPC: H01R9/26
Filed: 1958-06-17
Abstract: 904,189. Binding posts; terminal blocks; mounting terminals. PLESSEY CO. Ltd. June 8, 1959 [June 17, 1958], No. 19312/58. Class 38 (1). A terminal assembly comprises a body 1 of moulded nylon or other insulating material having an internally screw-threaded metal insert 3 for receiving the end 4 of a screw 5, the shaft 6 of which is reduced in diameter. The apertures in terminal lugs 7, 8, 9 are larger than the core diameter and smaller than the outside diameter of the screw thread, and the lugs are slit open by a lateral slot thereby permitting the lugs to be deformed so as to permit the screw-threaded end 4 of the screw 5 to be moved through the apertures of the lugs. The screw also passes through a spring washer 14, a spacing member 13, and a link 15 for establishing connection between the screws of two adjacent terminal blocks, Fig. 2. The arrangement ensures that there is no tendency, once they have been placed upon the portion 6 of the screw, for the lugs to fall off the screw. It is sufficient if only the member, e.g. lug, washer or coupling link, nearest to the threaded end of the screw, is made with a bore diameter smaller than the outside diameter of the screw threads, the lug being screw-threaded or slit and deformed, or resiliently deformable to form a screw thread, for co-operation with the threads of the screw. The body of the block 1 is provided with a groove 16 for engagement with a rail 17 so that several blocks may be mounted side by side. To facilitate the use of coupling links for interconnecting blocks arranged side-by-side or two blocks arranged back-to-back, " punch-out " sections may be provided in the lateral and back walls of the block. Specification 904,190 is referred to.
Patent GB-927929-A (GB)
Title: An improved method of removing carbon dioxide from gaseous mixtures
IPC: C01B32/50
Filed: 1959-06-05
Abstract: CO2 is at least partially recovered from aqueous alkaline solutions containing arsenite ions which have been employed, according to the process of the parent Specification, to absorb CO2 from gaseous mixtures containing it by passing a desorbing gas, e.g. air, through the solution which is at a temperature below the boiling point at atmospheric pressure and not more than 15 DEG C. above the temperature of the absorption.  A converter gas containing, for example, 16-18% by volume CO2 is scrubbed with say an aqueous solution of potassium carbonate containing <PICT:0927929/III/1> dissolved arsenious oxide in varying proportions up to that required to yield a solution corresponding to potassium orthoarsenite preferably at superatmospheric pressure, e.g. 11 atmospheres.  Spent absorption solution is expanded and regenerated, CO2 being desorbed by contacting the solution with air at temperatures below the boiling point of the solution at atmospheric pressure, i.e. below 100 DEG -105 DEG C., e.g. ambient temperature or 60 DEG -75 DEG C.  The heat required, if any, for the regeneration step may be supplied by recovery or dead steam, or any steam of low thermal content, e.g. discharge steam from power plants or other industrial processes.  In a modification of the above process, regeneration may be effected in two stages, the first by boiling the solution to effect partial CO2 desorption, and the second by passing desorbing air through the solution at a lower temperature.  CO2-containing gases are scrubbed with absorption solution in tower 1 under superatmospheric pressure. The solution is expanded and passes in part through heat exchanger 2, where it is heated by partially regenerated solution from tower 3, and in part through line 9 to tower 3, where it is heated to its boiling point, indirectly by steam in coil 4, or directly by steam entering through 8. Desorbed CO2 escapes from the top of tower 3. Partially regenerated solution passes through heat exchanger 2 to the top of tower 5, and down therethrough in countercurrent to air blown in from 6 completing regeneration, and lowering its temperature to that for absorption, before reintroduction into tower 1 through pump 7.  Arsenate formed by oxidation of arsenite in the solution is converted to arsenite by action of a reducing agent at above 150 DEG C.  Sulphuretted arsenic compounds formed by H2S in the gases are removed by treatment with alkali metal cyanides, or as insoluble sulphides by action of metal salts, e.g. lead carbonate. Specifications 786,669 and 873,462 also are referred to.
Patent GB-604375-A (GB)
Title: Substituted acridines and intermediates therefor, and process of making them
Filed: 1945-07-27
Abstract: Substituted acridines and their salts having antimalarial properties of the general formula <FORM:0604375/IV(b)/1> wherein R in both instances represents the same saturated primary or secondary hydrocarbon radical having from 3 to 7 carbon atoms, are prepared by condensing 2-methoxy-6 : 9-dichloro-acridine with a diamine of the general formula <FORM:0604375/IV(b)/2> , where R has the significance indicated above.  In examples: (1) to (5) 2-methoxy-6-chloroacridines substituted in the 9-position with 41-(diisopropylamino)-, 41 - (di - n - butylamino)-, 41 - (diisoamylamino)-, 41-(dicyclohexylamino)-, and 41-(di-111-methylhexylamino) butylamino groups are prepared by heating phenol, 2-methoxy-6 : 9-dichloroacridine and 4 - (diisopropylamino)-, 4 - (di - n - butylamino)-, 4 - (diisoamylamino)-, 4 - (dicyclohexylamino)- or 4 - (di - 11 - methylhexylamino)-butylamine and the corresponding hydrochloride salt is prepared; (6) similarly other substituted acridines of the above general formula and their hydrochloride salts are prepared; (7) the corresponding dihydrobromide, sulphate, nitrate, phosphate, lactate or propionate salts of the substituted acridines obtained in (1) to (6) are prepared.  4-(Dialkylamino) butylamines of the general formula <FORM:0604375/IV(b)/3> , where R has the significance indicated above, are prepared by reducing an aminonitrile of the general formula <FORM:0604375/IV(b)/4> , e.g. with hydrogen in the presence of a hydrogenation catalyst or by the action of alcohol and sodium.  4-(Dialkylamino) butyronitriles of the general formula <FORM:0604375/IV(b)/5> , where R has the above significance, are prepared by condensing secondary amines of the general formula <FORM:0604375/IV(b)/6> with 4-chlorobutyronitrile.ALSO:Substituted acridines and their salts having antimalarial properties of the general formula <FORM:0604375/IV (c)/1> wherein R in both instances represents the same saturated primary or secondary hydrocarbon radical having from 3 to 7 carbon atoms, are prepared by condensing 2 - methoxy - 6 : 9 - dichloro-acridine with a diamine of the general formula <FORM:0604375/IV (c)/2> , where R has the significance indicated above.  In examples: (1) to (5) 2-methoxy-6-chloroacridines substituted in the 9-position with 41-(diisopropylamino)-, 41 - (di - n - butylamino)-, 41 - (diisoamylamino)-, 41-(dicyclohexylamino)-, and 41-(di-111-methylhexylamino) butylamino groups are prepared by heating phenol, 2-methoxy-6 : 9-dichloroacridine and 4 - (diisopropylamino)-, 4 - (di - n - butylamino)-, 4 - (diisoamylamino)-, 4 - (dicyclohexylamino)- or 4 - (di - 11 - methylhexylamino) - butylamin and the corresponding hydrochloride salt is prepared; (6) similarly other substituted acridines of the above general formula and their hydrochloride salts are prepared; (7) the corresponding dihydrobromide, sulphate, nitrate, phosphate, lactate or propionate salts of the substituted acridines obtained in (1) to (6) are prepared.
Patent GB-377404-A (GB)
Title: A new or improved drive for potters jolleys, polishing and brushing machines and thelike
IPC: B28B1/02
Filed: 1931-07-07
Abstract: 377,404. Pottery manufacture. TURNER, C. H. and WAKEFIELD, F. R., Victoria Foundry, Liverpool Road, Burslem, Stoke-on-Trent. July 7, 1931, No. 19494. [Class 87 (i).] I n a jolley, polishing, or brushing machine or the like the jigger spindle 3 is driven by a disc 6 slidably mounted thereon, and adapted to be raised so that its inclined outer edge engages a conical roller 7 driven from an electric motor 9. The disc may be raised by a non-revolvable collar 10 bearing against a boss beneath the disc, and operated from a push-handle 13 through lever 14, rocking-shaft 12 and arms 11. The operating mechanism may be assisted by an adjustable balance-arm 15.
Patent GB-705578-A (GB)
Title: Improvements in display devices
IPC: A47F5/08
Filed: 1950-08-04
Abstract: 705,578. Racks. AUGENFELD, F. Aug. 7, 1951 [Aug. 4, 1950], No. 19532/50. Class 52(3) A display device comprises a wall 10 having latticed openings of diamond form and a supporting shelf or platform with one or more extensions from the rear edge to engage the wall through an opening to hold the shelf projecting horizontally from the wall surface. As shown, the shelf 11 has two right-angled brackets 12 secured thereto, one limb of each bracket extending upwardly to engage the rear of the wall. In a modification, Fig. 3, the shelf is formed integrally with two upwardly extending arms 13 and has two pairs of parallelly disposed downwardly extending lugs 14. In a further modification, Fig. 4, the horizontal part 15 is formed with an upward extension 19 and a strut 16 with a vertical lower extremity 17 and a horizontal projection 18. In an alternative form the supporting platform has two lugs bent downwardly from its rear edge and a strut projecting downwardly and rearwardly from its under surface. In another form the platform has two spaced-apart strips upstanding from the rear edge, the upper ends of the strips being bent back hook fashion. The walls may have tubes along their edges to allow them to be united pin-hinge fashion.
Patent GB-261666-A (GB)
Title: Improved armoured rubber-pipe
IPC: B29D23/00
Filed: 1926-08-07
Abstract: 261,666. Ebel, F., and Ebel, K., (trading as Kux Nachf., W.). Aug. 7, 1926. Hose and flexible pipes. -An armoured rubber pipe has a finished twilled-hemp pipe c inserted between the inner and outer rubber tubes a, d. The Specification states that the weft and warp of the twilled-hemp pipe unformly support the pressure to which the pipe is exposed, and that the same wall thicknesses are employed for pipes of large or small diameter. Strengthening wire coils b, f are embedded in the inner and outer circumferences of the pipe. A canvas pipe e may also be incorporated in the wall of the pipe.
Patent GB-585580-A (GB)
Title: Improvements in the manufacture of lenses from plastic materials
IPC: B29D11/00
Filed: 1943-11-23
Abstract: A solid transparent core of thermoplastic material, and of form and dimensions closely approaching those of the desired finished lens, is coated with a liquid or semi-liquid film of transparent thermoplastic material or of transparent thermosetting abrasion - resisting material, and the coated core is moulded in dies having optically-accurate surfaces.  Thus, a core of methyl methacrylate polymer or polystyrene may be coated with (a) methyl methacrylate monomer, (b) allyl methacrylate monomer or (c) abrasion-resistant material in the form of cross-linked polymers such as polymers of esters of allyl alcohol or its derivatives, e.g. polymers of allyl methacrylate, chloracrylate or crotonate, diallyl oxalate or phthalate, or glycol dimethacrylate.  The film may be applied by dipping or spraying, and as a monomer or a solution of polymer in monomer or in a volatile solvent.  The monomers are polymerized during the moulding.  The film may, or may not, have the same refractive index as that of the core. According to the first Provisional Specification, the core may be of thermosetting material.ALSO:A solid transparent core of thermoplastic material, and of form and dimensions closely approaching those of the desired finished lens, is coated with a liquid or semi-liquid film of transparent thermoplastic material or of transparent thermosetting abrasion-resisting material, and the coated core is moulded in dies having optically-accurate surfaces.  Thus, a core of methyl methacrylate polymer or polystyrene may be coated with (a) methyl methacrylate monomer, (b) allyl methacrylate monomer or (c) abrasion-resistant material in the form of cross-linked polymers such as polymers of esters of allyl alcohol or its derivatives, e.g., polymers of allyl methacrylate, chloracrylate or crotonate, diallyl oxalate or phthalate or glycol dimethacrylate.  The film may be applied by dipping or spraying, and as a monomer or a solution of polymer in monomer or in a volatile solvent.  The monomers are polymerized during the moulding.  The film may or may not have the same refractive index as that of the core.  The core may be formed by machining, grinding and polishing, or by moulding.  Specifications 482,836, 556,743, 572,748, 583,091 and 585,576, are referred to. According to the first Provisional Specification, the core may be of thermosetting material.
Patent GB-381589-A (GB)
Title: Improvements relating to plate cylinders for offset printing presses
IPC: B41F27/12
Filed: 1931-07-08
Abstract: 381,589. Printing-machines. ROCKSTROH-WERKE AKT.-GES., Heidenau, Germany. July 8, 1931, No. 19652. Convention date, Aug. 2, 1930. [Class 100 (ii).] Printing-surfaces ; inking-apparatus.-In a plate cylinder for offset printing-machines wherein the printing-surface amounts to more than half the circumference of the cylinder, the gap in the cylinder surface into which the plate ends are inserted for securing purposes is bridged by a detachably mounted arcuate plate to provide a continuous surface between the beginning and the end of the printing-surface or area in order that a portion, for example one-third, of the continuous cylinder surface, may be utilized as an ink-distributing table. The bridge a, Fig. 1, is secured by means of bolts b, c on the ledge d of the plate cylinder e. The plate f is drawn tightly around the cylinder by means of tensioning-rails g situated in the channel of the cylinder. In a modification the bridged gap or channel is much smaller, but the printing-surface on the plate only extends for approximately two-thirds of the circumference of the cylinder and the rest of the plate lying on the cylinder surface is utilized as an ink-distributing table. The bridge prevents the inking-rollers contacting the cylinder from jumping. Starting and stopping arrangements.-The bridge is associated with safety gear in such a manner that the machine can only be started for printing when the bridge has been inserted. An eccentric k, Fig. 3, for imparting a reciprocating motion to a rod m by means of a doublearmed lever l, is secured to the shaft of the plate cylinder e. The rod m is adapted to be lifted by a rod n actuated from a crank-lever o which carries a roller p engaging the circumference of the cylinder e. So long as the bridge is inserted in the cylinder the roller p runs on the circumference and retains the rod m in an uplifted position, so that it cannot engage a rocker q. If, however, the bridge is not inserted in the cylinder, the roller p drops into the gap and the reciprocating-rod m engages the rocker q which, in turn, operates gear for stopping the machine. The rod m may operate a press-button in an electrical circuit to stop the machine.
Patent GB-470726-A (GB)
Title: Improvements in sensitising photographic silver-salt emulsions and in manufacture ofdyes therefor
IPC: G03C1/12
Filed: 1935-11-15
Abstract: Photographic silver salt emulsions are sensitized by means of dyes of the following formulae <FORM:0470726/IV/1> <FORM:0470726/IV/2> where D = vinylene or phenylene, n = 2 or 3, R1 = alkyl, A = CN or quinolyl or CO.R(R = alkyl or aryl), Z = an organic residue or hydroxyl and Y = the non-metallic atoms necessary to complete a 5- or 6-membered heterocyclic nucleus.  Z may be acyl, aryl, alkylamino, arylamino, alkoxy, COOH or carbalkoxy.  The methine chain may be halogen substituted.  The heterocyclic nucleus may be a thiazole, selenazole, oxazole, pyridine, quinoline, indolenine, thiazoline or selenazoline nucleus.  The dyes where n = 2 can be made by condensing a cyclammonium quaternary salt of the above heterocyclic compounds containing a b -anilinovinyl group in a - or g -position with a non-cyclic compound containing the grouping <FORM:0470726/IV/3> wherein A and Z are as above defined.  In examples (a) 1-(b -acetanilidovinyl)-benzoxazole ethiodide is condensed with p benzoylacetonitrile (or b -naphthoylacetonitrile) in presence of triethylamine and alcohol, (b) 2-(b -acetanilidovinyl)-quinoline ethiodide is condensed with benzoylacetonitrile in presence of sodium acetate and acetic anhydride, (c) 1-(b -acetanilidovinyl)-benzothiazole ethiodide is condensed as in (a) with cyanoacetanilide or b -naphthoylacetonitrile or benzoylacetonitrile; carbethoxyformyl-(1-ethyl-2-(b -naphthothiazylidene-ethylidene)) - quinaldine is similarly prepared from ethyl-2-quinolylpyruvate and 2-(g  : g -diacetylallylidene)-1-ethyl-b -naphthothiazoline from acetylacetone. Other compounds mentioned are cyanoacetamides, e.g. N-methylcyanoacetamide, N-naphthylcyanoacetamide and benzoylacetone. Acid-binding agents such as strong tertiary organic bases, sodium or potassium hydroxides or carbonates or alcoholates or acetates can be used. The condensation of 1-(b -anilinovinyl)-benzthiazole ethiodide with benzoyl-acetonitrile is also formulated.  The dyes where n = 3 are made by using the corresponding heterocyclic quaternary salt containing an o -anilino-D -1 : 3-butadienyl group in a - or g -position.  In examples: (5) 1-(o -acetanilido-D -1 : 3 - butadienyl) - benzothiazole ethiodide [from 1-methylbenzthiazole ethiodide and b -anilinoacrolein anil hydrochloride in acetic anhydride] is condensed with benzolacetonitrile (or cyanoacetanilide) as in (1); (6) 1-(o -acetanilido - D  - 1 : 3 - butadienyl) - benzoxazole ethiodide [prepared as the above thiazole compound) is condensed as in (5) with cyanoacetanilide (or benzoylacetonitrile).  Twelve spectrograms are given.  Some of the dyes have small de-sensitizing effects together with sensitizing effects in another range of the spectrum.  Details of the preparation of emulsions containing the dyes are given.  It is also stated that the dyes probably exist in tautomeric forms the formulae of which are given.  Specification 431,141 is referred to.
Patent GB-147754-A (GB)
Title: Improvements in electrical high frequency current transformers
IPC: H01F27/28
Filed: 1920-07-08
Abstract: 147,754. Ges. f³r Drahtlose Telegraphie. July 29, 1915, [Convention date]. Transformers.-The windings of a high-frequency transformer are mounted on a laminated hollow core of small diameter relatively to its length. In the form shown, the core is built up of groups of annular laminµ a separated by insulating-bars b. The windings are passed round the core as shown and are spaced to provide passages for the circulation of oil or other cooling-medium. The arrangement of the insulating-bars b also permits the cooling-medium to circulate through the core.
Patent GB-1045208-A (GB)
Title: Improvements relating to sheet feeding and stacking mechanisms
IPC: B65H1/18
Filed: 1964-05-07
Abstract: 1,045,208. Feeding and delivering sheets. M. DEBRAY. May 7, 1964, No, 19804/64. Headings B6B and B6H. [Also in Division B8] A pile table 9 for supporting a stack of sheets 25, from or to which sheets are fed or delivered one at a time, is urged upwardly so that the top of the pile contacts a feeler 80 to locate the top of the pile in a predetermined position, the table being depressed, or the table braked and the feeler lifted, to free the top of the pile for feeding or delivery. The table 9 is raised by a rack-and-pinion 16. The pinion 16 and two spaced drums 19, 20 are fast on a shaft 22. A brake-shoe 31 is spring-urged towards the drum 19 to hold the table stationary. The two arms of a forked lever 43 are loosely mounted on the shaft 22. Said lever carries a bolt 59 sliding in a sleeve 61 pivoted to a rod 52. The rod 52 supports a friction shoe 57. A rotating cam 41 pivots the lever 43 to compress spring 62 and press the friction shoe 57 against the drum 20. Further rotation of the cam releases the brake shoe 31, whereby the drum is urged anti-clockwise by the friction shoe 57 to lift the table. The cam is so shaped that after the brake 31 is reapplied the feeler 80 is lifted by member 85 to free the top of the pile. The brake drum 19 and shoe 31 may be replaced by a ratchet-wheel and pawl so that the table is depressed slightly when the brake is re-applied to free the top of the pile. In this case the feeler is fixed in position. In another arrangement, the feeler is fixed and the table constantly urged upwardly by a spring, Fig. 3 (not shown). The brake means is dispensed with and the pinion 16 arranged to engage a rack on the right-hand side of the support 10, as seen in Fig. 1. Here the friction shoe acts to depress the table a small amount at each revolution of the cam 41. Alternatively, the feeler and brake shoe are controlled by the cam 41 as before, the friction shoe being dispensed with and the table constantly urged upwardly by a spring. In Fig. 7 (not shown), the feeler is fixed and the table lifted by a pawl 73 engaging a rack-shaft 44. A steel blade 71 oscillated by a pin 39 on the cam 41 controls the movement of the pawl 73. In a labelling machine, Fig. 5, the table is lifted by a spring-loaded chain 13 passing around a sprocket 17. As a cam 93 passes along a guideway 94 it lifts a lever 102 to apply a brake to the drum 19 and lift the feeler 80.
Patent GB-624999-A (GB)
Title: Improvements in spray nozzles for viscous liquids
IPC: B05B3/10
Filed: 1947-07-24
Abstract: 624,999. Spray-burners. HODGKINSON (SALFORD), Ltd., J., and FELSNER, O. July 24, 1947, No. 19833. [Class 75 (i)] [Also in Group XXIX] A spray nozzle for viscous liquids has a nozzle member D held within a cap C by a screwed disc E. The cap C is screwed to a member B which is secured to a liquid feed tube A. The liquid is forced by pressure from the tube A through four peripheral grooves e in the disc E to an annular space C<SP>4</SP>. Passing into the conical whirl chamber d<SP>1</SP> through four tangential passages d<SP>4</SP> between the nozzle member D and disc E, the liquid is finally emitted through an outlet d<SP>3</SP>. The nozzle may be used for spraying fuel.
Patent GB-897721-A (GB)
Title: Colored cast pearl plastics
IPC: C08L1/28
Filed: 1958-06-20
Abstract: A light-transmitting plastic composition having a pearly lustre comprises a cast resin, a polymeric additive incompatible with the resin and a nacreous pigment having an index of refraction of at least 1,70, such as guanine, basic lead carbonate, lead hydrogen arsenate, molybdenum trioxide or a glass.  The cast resin may be polymethyl methacrylate, polystyrene, a vinyl chloride-vinyl acetate copolymer, or a copolymer obtained by polymerizing styrene with a polyester formed by condensation of 6 moles of propylene glycol, 5 moles of maleic acid and 1 mole of phthalic anhydride.  The polymeric additive preferably comprises from 0,001 to 0,1% of the cast resin and may be ethyl cellulose, cellulose acetate, cellulose nitrate or a phthalic anhydride-glycerol alkyd resin.  The compositions may be obtained (a) by adding the pigment and incompatible additive to a methyl methacrylate monomer-polymer syrup and polymerizing by heating in a mould after the incorporation of a catalyst such as acetyl peroxide or benzoyl peroxide, (b) by adding the pigment, incompatible additive and methyl ethyl ketone peroxide (as catalyst) to a mixture of styrene and a polyester formed by condensation of propylene glycol, maleic acid and phthalic anhydride and polymerizing by heating in a mould or (c) by dispersing the pigment and incompatible additive in a solution of vinyl chloride-vinyl acetate copolymer in isophorone and methyl ethyl ketone, pouring the suspension into a shallow pan and allowing the solvent to evaporate.