baber/WOPTO huggingface dataset:
Patent GB-472265-A (GB)
Title: Improvements in or relating to the manufacture of transparent cellulosic sheets and films
IPC: C08J7/04
Filed: 1936-03-18
Abstract: The shrinkage in width which non-fibrous cellulosic sheets and films undergo during drying is substantially reduced by applying to the surface of the sheets or films, after formation but prior to their final passage over the drier rollers, a very thin layer of a shrinkage-preventing material, adapted to produce during contact a slight adhesion between the sheet or film and the drier rollers. Examples of suitable shrinkage-preventing materials are natural and/or synthetic resins, e.g. dewaxed shellac, cumar resin, rosin, a salt of a rosin acid, an alkyd resin, a phenol-formaldehyde resin, polymerized terpene resin, halogenated diphenyl resins, blown tung oil, bori-borate resins, methylated celluloses, sugar - formaldehyde resins, gum arabic, dextrin, and pectin, and such materials may be applied to the sheet or film during or after impregnation with the softening agent, by adding it to the softening bath or by applying an aqueous dispersion of the medium after softening.  A number of suitable dispersing agents are specified.  In examples: (1) a colloidal dispersion obtained by mixing dewaxed shellac, ammonium hydroxide, and water is added to the softening bath or is applied separately; and (2) a solution of cumar resin in benzene is added to an aqueous solution of sodium oleate and the suspension obtained added to the softening bath, or after removal of the benzene, is applied as a separate bath.  The process is applicable to the manufacture of sheets or films made by coagulation and/or regeneration from aqueous cellulosic dispersions, including regenerated cellulose, glycol cellulose, methyl and ethyl cellulose, cellulose glycollic acid, and cellulose phthalic acid. Specifications 283,109, [Class 140], and 472,264 are referred to.
Patent GB-990002-A (GB)
Title: Electric cables
Inventor: MASLONA JAN
IPC: H01B13/20
Filed: 1963-03-01
Abstract: 990,002. Coaxial cables. STANDARD TELEPHONES & CABLES Ltd. March 1, 1963, No. 8316/63. Heading H1A. A coaxial cable has the inner conductor supported by electric insulation bonded to the outer conductor. In Fig. 1, cellular polythene insulating cylinders 2 have a radial slit 4 in which the central conductor is supported. Around them is folded an outer conductor 3 provided with a polythene coating 5. The outer conductor is then heated to weld the cylinders to the polythene coating. Cylinders 2 may be replaced by solid or cellular polythene discs. In the arrangement shown in Fig. 4, pads of polythene 10 are bonded to the polythene coating 9 and then folded round the inner conductor. Strips of polythene at an angle to the cable axis may replace the pads so that, when they are folded, they provide a continuous helix. The supporting material may be bonded directly to the outer conductor by an adhesive layer.
Patent GB-1092546-A (GB)
Title: Clip assembly
Inventor: FLEETWOOD HAROLD
IPC: F16B2/06
Filed: 1965-02-26
Abstract: 1,092,546. Furniture joints. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb. 2, 1966 [Feb. 26, 1965], No. 8370/65. Heading A4H. [Also in Division E2] A clip assembly comprises a clip 10 having two gripping arms 12 of tough stiff thermoplastic polymer, adapted to receive and grip an article 14, each arm bearing a lug 15 at or near its end, and a transverse locking member 19 locatable in recesses formed behind the lug to prevent the arms of the clip releasing the article. In the construction shown the arms extend from a base 11. The article gripped by the arms need not necessarily be of circular crosssection. In use the base 11 is attached to a structure by screwing, nailing, bolting, riveting or glueing or by welding if both the structure and clip base are made of like plastics material; the clip could also be formed integrally with a plastics structure. One application referred to its attaching the plastics seats of chairs or stools to tubular metal frames. The locking member shown in the drawing is rectangular in shape but in a modification it can be of H-shape in which case the arms of the clip are recessed to receive the central bar of the locking member.
Patent GB-376686-A (GB)
Title: Improvements in and relating to supports for vitreous articles
IPC: H01J19/66
Filed: 1932-03-21
Abstract: 376,686. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Buttolph, L. J. ; 1, Columbia Avenue, Grantwood, New Jersey, U.S.A.) March 21, 1932, No. 8372. Convention date, March 21, 1931. [Class 39 (i).] Relates to the attachment of a support to the silica envelope of a mercuryvapour arc or other lamp by the methods described in Specification 364,188. According to the present invention, a split ring is placed in registry with an irregularity in the body, a closely-fitting sleeve is slipped over the ring, and the sleeve is then secured to the ring. The silica envelope 1, Figs. 1, 3, is formed with an annular depression 2 in its wall, a split ring 3 of nickel or the like is placed in the depression, and a sleeve 4 of nickel is then placed over the ring, the sleeve preferably having a slot 5 in its edge which registers with the joint in the ring. A number of holes 6 are formed in the ring, and silver solder is dropped through these holes to unite the sleeve to the ring. The sleeve serves both as a support and as a current collector for an associated electrode. The slot in the sleeve increases its elasticity and prevents it from crushing the envelope .1 by contraction when cooling. In some cases, ordinary solder may be used instead of silver solder, and in other cases the sleeve may be screwed on to the ring or may grip it by friction.
Patent GB-613458-A (GB)
Title: Improvements in and relating to the manufacture of meso-alkylmercapto substituted carbocyanine dyes and to photographic emulsions sensitized therewith
IPC: C09B23/06
Filed: 1946-03-19
Abstract: Meso-alkylmercapto substituted symmetrical or unsymmetrical carbocyanine dyes of the general formula <FORM:0613458/IV (c)/1> wherein R and R1 are the same or different and are alkyl or aryl groups, R11 is an alkyl or aralkyl group, L is an unsubstituted or a substituted methine group, n and m are the same or different and 0 or 1, X is an anion, and Z and Z1 represent the non-metallic atoms to complete the same or different 5- or 6-membered heterocyclic nuclei, are prepared by condensing a quaternary salt of a heterocyclic nitrogen compound having an alkylmercapto, aralkylmercapto, or arylmercapto group in the 2- or 4-position to the quaternary nitrogen atom with a heterocyclic nitrogen quaternary salt of the general formula <FORM:0613458/IV (c)/2> R and R11 may be substituted alkyl, e.g. b -hydroxyethyl, b -ethoxyethyl, or b -carbomethoxyethyl.  The condensation may be effected in presence of an acid-binding agent, e.g. pyridine, triethylamine, or an alkali metal carbonate.  31 - Ethyl - 3 - methyl - 9 - methylmercapto - 4 : 5 : 41 : 51 - dibenzselenathiacarbocyanine bromide is prepared by refluxing together 2-methylmercapto - b  - naphthaselenazole metho-p - toluenesulphonate, 2 - (21 - ethylmercapto)-propenyl - b  - naphthathiazole etho - p - toluene-sulphonate, and pyridine, and adding aqueous KBr to an aqueous solution of the product.  3 - 31 - Diethyl - 9 - methylmercapto - 4 : 5 : 41 : 51 - dibenzselenathiacarbocyanine bromide, 9-decylmercapto - 31 - ethyl - 3 - methyl - 4 : 5 : 41 : 51 - dibenzselenathiacarbocyanine perchlorate, 11 : 3 - diethyl - 9 - methylmercaptothia - 21 - carbocyanine perchlorate, 3 : 31 - diethyl - 9 - methylmercaptooxathiacarbocyanine iodide, 3-ethyl - 31 - phenyl - 9 - methylmercaptothiacarbocyanine iodide, 3 - 11 - diethyl - 9 - methymercaptothia - 41 - pyridocarbocyanine iodide, 3 : 31 - diethyl - 9 - methylmercapto 4-1 - phenylthiazolocarbocyanine iodide, 3 : 31 - diethyl - 41 - methyl - 9 - methylmercaptooxathiazolocarbo cyanine iodide, 3 : 31 - diethyl - 9 - methyl mercaptothiaselenacarbocyanine iodide, 3 : 31 - diethyl - 9 - methylmercaptoselenacarbocyanine iodide, 3 : 31 - dimethyl - 9 - ethylmercaptothiacarbocyanine iodide, 9 - benzylmercapto - 3 - (b  - ethoxyethyl) - 31 - methylthiaselenacarbocyanine bromide, and 3 - allyl - 31 - ethyl - 9 - methylmercaptothiacarbocyanine bromide are similarly prepared. Specifications 472,227, 549,203 and 610,566, are referred to.
Patent GB-703969-A (GB)
Title: Improvements in or relating to optical contour projectors
IPC: G02B21/00
Filed: 1952-04-02
Abstract: 703,969. Optical gauging-apparatus. EASTMAN KODAK CO. April 2, 1952 [April 2, 1951], No. 8466/52. Class 106 (2). [Also in Group XX] An optical contour projector, Figs. 3 and 4, having means 12 for the rear illumination of an object 11 on a worktable 16 and means 40 for the episcopic illumination of the object 11 through mirrors 42, 43 and the first lens 17 of an image-forming system 17, 18, 19, 14, comprises, in addition, a housing 20 containing a pair of reflectors 22, 23 in parallel relationship, one reflector 22 being semi-transparent and the housing 20 being secured to the projector such that the reflectors 22, 23 reflect episcopic light from the source 40 to a chart 30 on the worktable 16 and reflect light from the chart 30 back through the first lens 17 of the projector in alignment with the light rays in the image forming system 17, 18, 19, 14. By this means there is formed on the screen 14, for direct comparison, an image of the object 11 and an image of a diagram on the chart 30. Without the housing 20 in position, the light from the light source 40 is used solely for the episcopic illumination of the object 11. With the housing 20 in position, the semi-transparent mirror 22 reflects part of this light to the mirror 23 and thence to the reflecting chart 30. If similarly coloured filters, say red filters are placed at 26 and 44 (as shown by broken lines) and a complementary colour filter, say blue, is placed in the filter holder 24, none of the episcopic light from the source 40 reaches the object 11 and, on the screen 14, the diascopic light from the source 12 will appear blue whereas light from the chart 30 will appear red to permit quick comparisons. The filter 26 is of course not essential. The same contrast of images can be obtained without any of the three filters by merely using a dichroic semitransparent reflector at 22. Thus, if the semitransparent mirror 22 reflects yellow and transmits blue, the image of the object will appear blue and the image of the chart 30 yellow, the object 11 being either episcopically or diascopically illuminated. If it is desired to use only the diascopic illumination from the source 12, a yellow filter at 44 will prevent episcopic illumination reaching the object 11 through a dichroic filter 22 which transmits only blue light and reflects yellow. Specification 674,193, [Group XX], is referred to.
Patent GB-1307891-A (GB)
Title: Rotary compound water meter
IPC: G01F7/00
Filed: 1970-02-23
Abstract: 1307891 Rotary fluid-flow meters T TOKUI 23 Feb 1970 [9 May 1969] 8518/70 Heading F1F A compound meter has an impulse-turbine main-flowmeter 1 and a by-pass flowmeter 4 for low flow-rates, the meter 1 comprising a rotor or "turbine", 13 coupled to an indicator 17 and lodged in a casing 9 having intake and outflow openings 10, 11. On the upstream side of the meter 1 a casing 8 houses a gravity-biased valve 6 that opens when the flow-rate rises to a predetermined magnitude. A strainer 12 prevents solid matter entering the valve 6 and an inlet 7 of a by-pass flow-passage 5 containing the meter 4. To minimize errors when the valve opens the passage 5 terminates at a bent pipe 3. The fluid issuing from the pipe is deflected towards the openings 11 by a portion 14 of an outer casing 21, and thus assists or opposes rotation of the turbine, Fig.4, (not shown). Calibration is effected by turning the pipe so as to adjust its angle of inclination.
Patent GB-652364-A (GB)
Title: Improvements in or relating to privacy equipment for telephone and other communication systems
Inventor: JEFFERSON HAROLD
IPC: H04K1/04
Filed: 1947-03-28
Abstract: 652,364. Scrambling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 28, 1947, No. 8529. [Class 40 (iv)] In a scrambling system similar to that of Specifications 299,915, 309,063, or 638,911, a code-changing switch inserted between the two stages of modulation and/or between the second stage modulators and their associated oscillators consists of a multi-bank wiper switch of the telephone selector type. The first stage filters Fl, Fig. 1, are each connected to a wiper of a five-bank rotary switch SW (the signal having been split into five sub-bands carried over five channels in parallel) driven by an impulse generator GD, and the second stage modulators are connected to groups of contacts in each bank. To provide for inversion of the sub-bands, a further switch similar to SW and driven therewith has its wipers connected to the frequency determining elements of the second stage oscillators O<SP>2</SP> and its bank contacts connected to various reactive elements, e.g. condensers. The code-changing switch SW at the receiving station R, Fig. 3, is caused to lag by the transmission time t behind the switch SW at the transmitting station T. When R commences transmitting, a voice-operated relay at the station T connects up a switch SW<SP>1</SP> arrangdd in parallel with the switch SW at R but stepping at a time 2t behind the latter, and disconnects the switch SW. It may be desirable that such transference from switch SW to SW<SP>1</SP> be prevented at times other than immediately succeeding a code change at the station T, and to this end a gating relay may be provided and operated by the code-changing circuits, this relay being so connected that transference is impossible except when it is operated. The gating relay may be an actual relay or a thermionic tube network controlled by a suitable input wave. The code may be manually set by providing code-changing switches with an additional bank and wiper, and causing the wiper to hunt for a contact earthed by, e.g., a pushbutton arrangement. Indicator lamps to show the code set at any time may be provided. To bring the receiving station switch to the same code setting as that of the transmitting station switch, a signal of, say, 1000 c.p.s. is transmitted and the former switch is stepped until stopped by a relay connected to the rectified output from a 1000 c.p.s. filter fed with the de-coded receiver output.
Patent GB-418668-A (GB)
Title: An elastic electric conductor
IPC: H01B7/06
Filed: 1933-03-22
Abstract: 418,668. Cables. HERKENBERG, K., Heckinghausen, Oberbarmen, Germany. March 22, 1933, No. 8604. [Class 36.] An extensible and flexible multi-conductor cable comprises conductors s, Fig. 10, braided around an elastic core t, each conductor consisting of an elastic core around which conductive strands are braided. The conductors may be of the form shown in Fig. 1, consisting of a rubber core a over which conductive strands b are braided with a very short pitch and over which is applied one or more braided fabric sheaths, such as c, d. The conductive strands b may each consist of one or more fine wires, which may be of flat cross section and twisted together, enclosed in a rubber or fibrous sheath ; or the wires may be wound or braided around a spun fibre or elastic core.
Patent GB-183191-A (GB)
Title: Improvements relating to metallic sheeting and locking bars
IPC: E02D5/08
Filed: 1921-03-19
Abstract: 183,191. Webb, J. R., Blakemore, H. G. G., and Ransome Machinery Co. (1920), Ltd. March 19, 1921. Piling.-Metallic sheeting and locking clutchbars, especially for use as sheet piling for coffer dams or for erecting subaqueous walls, or with or without concrete for bridges and other structures, comprise sheets a, Fig. 1, which may be of trough, corrugated, or S shape in section, having beads b formed on their longitudinal edges, which engage in cylindrical recesses in locking-bars c of T-section. In a modification, the sheets are connected by a clutch member e, Fig. 2, of approximately H-section. Angular changes in direction of wall are obtained by the flexibility of the joint, and, by threading the clutch member on the pile in the reverse direction, greater changes may be effected.
Patent GB-644833-A (GB)
Title: Improvements in and relating to apparatus for mounting sections of film or the like in record card apertures
IPC: G03D15/10
Filed: 1948-03-25
Abstract: 644,833. Statistical apparatus. FILM 'N FILE, Inc. March 25, 1948, No. 8748. Convention date, March 31, 1947. [Class 106 (i)] [Also in Groups XV and XX] A card 1, Fig. 2, for a card record system has an opening in which, until the card is required for use, a protective cover 3 is lightly held by an adhesive sheet 2 seated in a recess at the back of the card, so that the adhesive sheet does not project beyond the surface of the card. When the card is to be used, it is punched according to the statistical classification of the record system, the protective cover 3 is then removed and a microfilm &c. 14, Fig. 14, of the card subject-matter is secured in the opening by the adhesive sheet 2. The adhesive sheet is transparent and may be of pressure-sensitive adhesive material, e.g. cellulose acetate and the protective sheet may be of glassine.
Patent GB-770407-A (GB)
Title: Improvements in or relating to switching systems for transmitting aerials
Inventor: SOSIN BOLESLAW MARIAN
IPC: H03H7/48
Filed: 1954-03-25
Abstract: 770,407. Aerial coupling circuits MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 8, 1955 [March 25, 1954], No. 8780/54. Class 40(7) Four hybrid switches of the kind described in Specification 770,406 are used in an aerial coupling circuit through which two transmitters are associated with two distinct parts of an aerial array. It is possible to operate the .switches so that each transmitter is coupled separately to its own part of the aerial; so that both transmitters can be coupled to either part of the aerial or so that either transmitter is coupled to both parts of the aerial. A transmitter not in use is connected to a load so that measurements may be made for test purposes. Fig. 1 shows the arrangement of the four hybrid switches 3, 4, 5 and 6 between the feeders 1 and 2 from the transmitters and the feeders 7 and 8 to the two parts of the aerial. Matching loads 9, 10, 11, and 12 and interconnections are provided where indicated. When the switches are set as shown input 1 is connected to output 7 and input 2 to output 8. If there is a failure, for example, in output 7 the protective devices associated with the transmitter at 1 will render it inoperative. Without disturbance to the operation of the transmitter at 2 switch 3 can be changed over to the position shown in Fig. 2 and the transmitter at 1 restarted. Then the switch 5 is arranged for hybrid connection and final phase adjustments made. Power loss in the load. 11 is stated to be negligible. As the inputs and outputs of the switches are matched irrespective of position, switch 3 can be changed back whilst the transmitters are delivering full power as soon as the failure at 7 is corrected. Switch 5 can then be returned to normal. By suitable switch operation any fault which may arise in the various parts of the system may be corrected without a break in transmission and whilst half of the normal power is radicated instead of only quarter of the normal power as would be the case without the switch system.
Patent GB-761592-A (GB)
Title: Production of isocyanates
Filed: 1954-03-25
Abstract: A process for the production of an organic isocyanate comprises in a first stage reacting a solution or suspension of an amine in an inert organic solvent with a solution of phosgene in an inert organic solvent without external heating, and in a second stage heating the reaction mixture thus obtained to a temperature of 100 DEG  to 200 DEG  C. by blowing in vapour of the solvent and finishing the phosgenation by introducing phosgene at a temperature within the same range.  The vapour, which may be introduced into the phosgenation reactor through one or several jets, may be generated in a boiler or by passing the solvent through a heated pipe or coil, the two latter methods admitting of continuous operation.  Indirect heating through the walls of the reactor may be employed in addition to the heating with the solvent vapour. The mixing in the first stage may be carried out in a high-speed mixer in accordance with the process of Specification 761,590.  In examples: a -naphthyl isocyanate is obtained by mixing chlorobenzene solutions of a -naphthylamine and phosgene in a centrifugal pump, introducing chlorobenzene vapour at the delivery branch to heat the mixture which is then passed with phosgene through a tower, blowing the mixture with nitrogen to remove phosgene and isolating the desired product by distillation (1); p-ethoxyphenyl isocyanate is similarly obtained from phosgene and p-phenetidine (3); diisocyanatobenzenes are obtained by similarly using a mixture of 1-methyl-2,6- and -2,4-diaminobenzenes and phosgene as starting materials with o-dichlorobenzene as solvent (5); a -naphthyl isocyanate is obtained by adding a -naphthylamine in chlorobenzene solution to a mixture of phosgene and chlorobenzene, heating the mass produced vapour and then adding further phosgene by passing in chlorobenzene (2); chlorobenzene solutions of 1,4-diaminocyclohexane and phosgene are contacted continuously and chlorobenzene vapour is then introduced to heat the mixture which is then treated in a tower with further phosgene to obtain cyclohexane 1,4-diisocyanate (4).
Patent GB-503279-A (GB)
Title: Improvements in or relating to method of making hermetical seams in heat fusible materials
IPC: B65D30/18
Filed: 1938-03-22
Abstract: 503,279. Making and closing bags; seaming non-metallic sheet materials. WILLIAMS, W. P. (Bergstein, R. M.) March 22, 1938, No. 8803. [Classes 94 (i) and 94 (ii)] [Also in Group VIII] In seaming together heat fusible sheet materials, the overlapped portions are put under tension by deflecting a narrow zone thereof while they are supported adjacent the zone, heat being applied while they are so tensioned. In reference to bag making, a web 17 of thermoplastically coated material, or material so coated only at 17a, is tubed at 37, the longitudinal seam being formed by a heated shoe 39 which deflects the overlapped edges into a groove 38 but does not bottom them therein. The bag bottoms 36 are formed, in similar fashion, by a rotary pair 46, 47, bags being secured at 20. In a modification, the tubular bag blanks may be severed from the tube, the bottoms being formed, during transverse motion of the blanks, by a shoe and groove device similar to 39, 38. Filled bags may be sealed by passing them between a similar groove and shoe device. Specification 475,301 is referred to: