baber/WOPTO huggingface dataset:
Patent GB-821951-A (GB)
Title: A process for the figure-etching of rollers
IPC: B41C1/18
Filed: 1956-02-03
Abstract: 821,951. Etching. KAUSCHKA, R. Feb. 3, 1956 [Feb. 3, 1955], No. 3394/56. Class 100(2) In a process for etching a pattern on a roller a negative design roller rotates with its relief design areas in contact with the roller to be etched so that an acid resistant paste applied to the nip between the rollers adheres only to the parts of the roller to be etched which are not in contact with the design roller, the roller to be etched rotating in an etching bath or channel and the coating of the roller to be etched with paste and the etching of said roller taking place in one single operation continuously during the rotation of both the rollers. The design roller 1, Fig. 1, is carried on a lever 17 pivoted at 16, and contact pressure between the roller 1 and the roller 4 to be etched is maintained by a device comprising a screw 18, hand-wheel 19 and spray supported nut 20. the screw 18 bearing on the lever 17 and being continuously adjusted during etching. After each revolution, the layer of paste on the roller 4 rejoins the mass of paste 5, which also removes spent etching agent and gases. A stop 9 limits the downward movement of the roller 1, whereafter there Will be a clearance between all parts of the rollers, so that the whole surface of the roller 4 will be coated with paste, and the etching will stop..The etching bath container 8 is then filled with water to wash off the roller 4. If a long roller 4 is to be etched with a short roller 1, etching is effected in successive circumferential bands moving the roller 1 axially one band after the preceding band has been etched. In another form, Fig. 3, the roller 4 rotates in an openended channel 11, etching liquid being supplied from a pipe 12 and flowing into a trough 13 and through an outflow 14 into a lower container, whence it is circulated by a pump to the pipe 12. In this way a greater arcuate angle of the roller 4 is in contact with the etching liquid. For etching a long roller 4 with this form of apparatus, the whole etching apparatus is moved with the roller 1 from band to band.
Patent GB-382826-A (GB)
Title: Improvements in or relating to mercury switches
IPC: H01H29/18
Filed: 1932-02-04
Abstract: 382,826. Mercury switches. ALLGEMEINE-ELEKTRICIT€TS-GES. 2, Friedrich-Karl-Ufer, Berlin. Feb. 4, 1932, No. 3399. Convention date, March 6, 1931. [Class 38 (v).] In a mercury switch of the kind in which an .electromagnetically actuated core floating on the mercury is adapted to displace the mercury surface to make contact, the core is provided at its end with points which break the surface and thus reduce the retarding effects of surface tension. A glass tube 1 containing mercury has contacts 4, 4<1> connected to end caps 2, 2<1>. A tubular core 5 of ferromagnetic material floats on the mercury and is adapted to be depressed by a coil (not shown) surrounding the tube so as to raise the mercury level to bridge the contacts 4, 4<1>. The ends of the core 5 are provided with points 7, 7<1> to penetrate the mercury surface and annular projections 6 serve as guides. Apertures 8 assist the mercury inside the core to flow away, thus accelerating the action of the switch.
Patent GB-1088311-A (GB)
Title: Oxyalkylated melamine-formaldehyde condensates
IPC: D06M17/04
Filed: 1965-01-26
Abstract: Oxyalkylated melamine-formaldehyde condensates are prepared by mixing at least one C2- 3 alkylene oxide with an aqueous solution, having a pH of 8 to 10.5 and a temperature ranging from room temperature to 120 DEG  C., of a malamine-formaldehyde condensate containing 1.5 to 4 moles of combined formaldehyde per mole of melamine, the amount of alkylene oxide added becoming chemically combined with the melamine-formaldehyde condensate being 1.5 to 4 moles per mole of condensate, and then reacting an aqueous solution of the resulting oxyalkylated condensate with additional formaldehyde or a source of formaldehyde at a pH of 6 to 10.5 and a temperature of 30 DEG  to 120 DEG  C. to introduce sufficient additional combined formaldehyde to provide a total of at least 5 moles thereof per mole of melamine in the condensate. The condensates can be further modified by treatment with 0.1 to 2 moles of an epihalohydrin before or after the final treatment with formaldehyde.  The reaction product of the last stage may also be etherified with alcohols and glycols.ALSO:Aminoplasts formed by reacting a melamineformaldehyde condensate successively with an alkylene oxide and formaldehyde, an alkylene oxide, an epihalohydrin and formaldehyde, or with an alkylene oxide, formaldehyde and an epihalohydrin, followed, if desired, by etherification with an alcohol or a glycol, are (1) padded on to cotton or woollen textiles in presence of oxalic acid, acetic acid and/or zinc nitrate and cured to provide a shrink- or crease-proof finish; or (2) added to bleached sulphite pulp which is cast into paper sheets having improved wet strength.
Patent GB-117237-A (GB)
Title: Improvements relating to the Ejection of the Waste Gases of Marine Furnaces.
Inventor: YARROW HAROLD EDGAR
IPC: B63G13/02
Filed: 1918-02-26
Abstract: 117,237. Yarrow, H. E. Feb. 26, 1918. Smoke - conduit systems. - In vessels in which the waste furnace gases are ejected by horizontal conduits, these conduits extend continuously across the ship from side to side, so that any water which enters at one side escapes at the other. Fig. 1<A> shows such an athwartship duct D arranged above the deck C and connected to the funnel A by a rising junction piece E, which also serves to prevent water in the duct D from entering the funnel. The duct D may be arranged below decks, and have its ends dampered, directed astern, or downturned. Dampers II, I may be provided as shown.
Patent GB-676082-A (GB)
Title: Improvements in or relating to protective structures exposed to the action of moving water
IPC: E02B3/06
Filed: 1951-02-12
Abstract: 676,082. Dykes. ETABLISSEMENTS NEYRPIC. Feb. 12, 1951. [Feb. 24, 1950] No. 3423/51. Drawings to Specification. Class 68 (ii). A dyke system comprises a main obstacle and a lower subsidiary obstacle spaced from the main obstacle on the sea side so that waves break over the subsidiary obstacle and crash in the basin between the two obstacles.
Patent GB-1162084-A (GB)
Title: Chromium Mixed Complex Azo Dyestuffs
Inventor: SCHOLL WALTER
IPC: C09B45/16
Filed: 1968-01-23
Abstract: 1,162,084. Metallized monoazo dyes. FARBENFABRIKEN BAYER A.G. 23 Jan., 1968 [26 Jan., 1967], No. 3438/68. Heading C4P. The invention comprises the chromium mixed complex monoazo dyes of formula wherein A is an aryl radical which may be substituted and an optionally substituted sulphonamide group is present in at least one of A and B and K is a monovalent cation. The dyes are prepared by treating a mixture of two appropriate monoazo dyes with a chroming agent or by treating a 1: 1-Cr complex of one dye with an equimolar amount of the other dye. The dyes may be used to colour wool, silk, synthetic polyamide or polyurethane fibres in yellow shades.
Patent GB-495466-A (GB)
Title: Improvements in or relating to cases or screens for electrical apparatus
IPC: H05K9/00
Filed: 1937-02-06
Abstract: 495,466. Casings for instruments. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 6, 1937, No. 3591. Void. Convention date, Feb. 11, 1936. [Class 37] A casing or screen for an electrical measuring instrument comprises moulded insulating material mixed with " high-alloy " iron powder, the powder being in volume about 80 per cent.
Patent GB-1026170-A (GB)
Title: Photographic method of treating a photographic sheet with a liquid
IPC: G03D9/02
Filed: 1963-01-29
Abstract: 1,026,170. Photographic process. INTERNATIONAL POLAROID CORPORATION. Jan. 29, 1963 [Feb. 15,1962], No. 3642/63. Heading G2C. In processes wherein two superposed photographic sheets are treated with a processing liquid via a nozzle having a discharge mouth bounded by lips at least equal to the width of the sheets and in liquid-tight contact therewith the liquid is introduced at such a pressure that the sheets are caused to advance along convergent paths past the lips and into superposition in the direction of flow of the liquid. The advancement of the sheets may be assisted by application of a force insufficient by itself to cause such advancement e.g. torque applied to a roll supporting and guiding one of the sheets. The process may be performed using the apparatus of Specification 1,026,169 which involves the use of an elastomeric container to store the liquid under pressure. The process is particularly suitable for application in the production of positives within a camera by the diffusion transfer process.
Patent GB-668674-A (GB)
Title: 4-amino-2-hydroxybenzene-1.5-dicarboxylic acid and a process for the production thereof
Filed: 1950-02-13
Abstract: The invention comprises 4-amino-2-hydroxybenzene-1,5-dicarboxylic acid, and a method of preparation by treating with heat, carbon dioxide and a carbonate a compound of the general formula <FORM:0668674/IV (b)/1> in which the hydrogen atom in the p-position to the hydroxy or amino group has been replaced by the carboxyl group, or a salt of the same compound.  The reaction may be carried out in an aqueous medium and/or under pressure.  Suitable carbonates are alkali or alkaline earth bicarbonates, e.g. potassium bicarbonate.  The above compound may also be prepared by introducing formyl groups into the above starting materials and oxidizing the formyl groups to carboxyl groups.  The 4 - amino - 2 - hydroxybenzene 1,5 - dicarboxylic acid can be isolated in the form of its salt, e.g. the sodium or calcium salt or a salt with an organic base.
Patent GB-726437-A (GB)
Title: Improvements in automatic winding machines
IPC: B65H63/00
Filed: 1953-02-09
Abstract: 726,437. Winding machine control means. REINERS, W. Feb. 9, 1953 [Feb. 9, 1952], No. 3648/53. Classes 120 (2) and 120 (3). An automatic winding machine of the kind including a thread detector arranged to initiate automatic control processes for reconstituting the thread line between the winding-off bobbin and the winding-on drum or the like, in response to absence or slackness of the thread passing the detector, includes means, responsive to interruptions in the operation of the machine which cannot be fully corrected by the control processes themselves, for preventing the initiation or completion of the automatic control processes when such interruptions occur. In the arrangement of winding machine shown, normally, on thread breakage or slackening the detector 39 moves in a clockwise direction making contacts 49, 45 causing withdrawal of armature 58 from switch plate 56 and the initiation of thread tying or fresh " winding- off " bobbin supplying, &c., operations. During the control process plate 53 rotates lifting rod 51 and thus restoring the detector 39 to its operative position. Should however, for example, the winding-on bobbin 4 reach a predetermined size the control process is prevented from being initiated by a hook 25 swinging under the projection 44 of the detector 39. The movement of hook 25 is brought about by the parts 9, 8, 13, 15, 18, 19 and 20. Again when the supply of winding-off bobbins 65 is exhausted movement of the detector 39 is prevented by the projection 63 of lever 61, 62 engaging projection 43 of the detector 39. Initiation of the control processes may also be prevented by apparatus responsive to the number and frequency of thread breaks, control process failures, other interferences or stoppages, &c. To this end a bimetallic strip 36 and heater element 37 are provided. When the strip 36 reaches a predetermined temperature the hook 35 releases the lever 30, 29 which under the action of spring 32 moves in a clockwise direction and bears against stop 16 on rod 15 and this brings hook 35 under projection 44. Manual means in the form of a knob 26 controlling an eccentric 27 are also provided, the eccentric 27 bearing on stop 17 moves rod 15 and brings the hook 25 under projection 44. Indicating or warning apparatus may be arranged to co-operate with the preventer mechanism so as to come into operation whenever the thread detector is prevented from operating. Such apparatus preferably gives an indication of the cause of the stoppage.
Patent GB-679744-A (GB)
Title: Improvements in or relating to devices for removing footwear
Inventor: SEEBOHM DERRICK
IPC: A47G25/80
Filed: 1950-02-13
Abstract: 679,744. Removing footwear. PARTAPYLON CO., Ltd. Feb. 13, 1951 [Feb. 13, 1950], No. 3661/50. Class 17 (iii). A device for use in removing footwear from the wearer comprises a forked element 12 connected, integrally or' otherwise, and at an obtuse angle substantially greater than a right angle, with an upwardly extending shaft 10 which may terminate in a handle portion 11. Specification 534,361 is referred to.
Patent GB-365817-A (GB)
Title: Improvements in centrifugal pumps
IPC: F04D29/24
Filed: 1931-02-05
Abstract: 365,817. Centrifugal pumps. HUMPHREYS, G. H., 17, Victoria Street, London. Feb. 5, 1931, No. 3685. [Class 110 (i).] A centrifugal pump for use with liquid containing solids has flexible vanes. The impeller disc a has ribs b, each of which has a bulb-like head. h. The rubber vanes c have grooves in their bases to fit over the heads of the ribs b, and flanges on the bases are held by coverplates e which are secured by studs. The cover-plates have ribs f on the concave sides of the vanes and these ribs act as a reinforcement for the vanes when they yield under working conditions.
Patent GB-124765-A (GB)
Title: Improved Means for Projecting Grenades and the like.
Inventor: LISTER FRANCIS VIVIAN
IPC: F41C27/06
Filed: 1916-03-13
Abstract: 124,765. Lister, F. V. March 13, 1916. Barrels; sights.-A gun for throwing grenades is made from a single-barrelled shot gun the barrel b of which is sawn off short and provided with a socket c for the grenade e. Spring retaining-clips d axe provided in the socket c. The propelling-means may consist of an ordinary shot cartridge f with the shot replaced by a rod g having a felt pad h at each end. A clinometer comprising a counterbalanced lever l and a scale k may be provided for aiming.
Patent GB-607515-A (GB)
Title: Improvements in metal bed pans
IPC: A61G9/00
Filed: 1946-02-07
Abstract: 607,515. Making hollow-ware. SANKEY & SONS, Ltd., J., and LOVERN, C. Feb. 7, 1946, No. 3822. [Class 83 (ii)] A bed pan is formed from a lower sheet-metal pressing having a continuous free upper edge and an upper pressing having a continuous free lower edge which is welded to the upper edge of the lower pressing. The upper pressing A has an aperture D blanked out, leaving a narrow strip E at its forward end. The edge of the aperture is folded under - at the sides and rear portion as shown in Fig. 5, but at the front portion forming the strip E the edge is bent down and pressed against the inner surface of the strip. The edge of the fold is welded all round to prevent the entry of foreign matter. The pressing A and the lower pressing Bare welded together along the line C.
Patent GB-1029542-A (GB)
Title: Improvements relating to interferometers
Inventor: YAMADA YAHIKO
IPC: G01B9/02
Filed: 1963-01-30
Abstract: 1,029,542. Interferometers. HITACHI SEISAKUSHO KABUSHIKI KAISHA. Jan 30,1963, No.3865/63. Heading G2J. In a Fabry-Perot interferometer the parallel plates are provided with regularly spaced grooves of rectangular cross section on their inner faces, coated with a thin reflecting film to render them semi-reflecting. By appropriate choice of the depth h of the grooves and the refractive index of the plates only light of a predetermined wavelength passes through to produce the interference fringes so that the incident light i does not have to be monochromatic.
Patent GB-1171992-A (GB)
Title: Reclining Chair
IPC: A47C1/031
Filed: 1967-01-26
Abstract: 1,171,992. Reclining chair. R O Y A L DEVELOPMENT CO. Inc. 26 Jan., 1967 [27 Jan., 1966], No. 3908/67. Heading A4J. In a reclining chair, in which the seat frame 10 is carried upwardly and forwardly, on links 94, 96, as the backrest tilts rearwardly, the back-rest initially moves in unison with link 112 about pivot 114, and then tilts more abruptly about pivot 116 into its limiting position. The latter is determined by pin 124, sliding in slot 123 of stop link 120. Other arrangements of links and levers, which produce different results, are illustrated and described.
Patent GB-325678-A (GB)
Title: Improvements relating to high pressure reaction vessels
IPC: C01C1/04
Filed: 1929-02-06
Abstract: 325,678. Morgan, G. T., and Tongue, H. Feb. 6, 1929. High-pressure chemical apparatus. - Highpressure reaction vessels, e.g. for ammonia or methanol synthesis are provided with heating or cooling means adjustably positioned in the interior of the vessel but externally accessible so that removal or adjustment can be effected without releasing the pressure in the vessel. Fig. 1 shows a vessel provided with externally open tubes extending inwardly from one wall of the vessel. An electric heating element 5 is adjustably fitted within each tube. In a modification the heating elements are replaced by tubes through which heating or cooling fluid is admitted to the tube 8, the inner tubes being slidable in order to vary the depth to which the fluid penetrates.
Patent GB-232367-A (GB)
Title: Improvements in locking devices for boxes, cabinets and the like
IPC: E05B17/00
Filed: 1924-02-15
Abstract: 232,367. Beney, E. R. Feb. 15, 1924. Catches, automatic; fastenings for boxes.-A box lid or cabinet door is secured by a manually releasable catch when a certain side of the box is turned to face a predetermined compass direction. In all other positions the releasing means is blocked by the dial of a magnetic compass. The invention is illustrated as securing a lid 3 of a box 5 by means of a pivoted catch 9. 10, actuated by a spring 11 to engage a notched flange 12 on the lid. The rear arm 10 of the catch engages a notch in the plunger 14 which is pressed upwards by the spring 15. A second plunger 26 is carried by the lid and pressed upwards by a spring 27 in a socket 24 and provided with a finger-piece 25. The plungers 26 and 14 are in alignment. To release the fastening catch 9, it is necessary to press down the plunger 26 by the piece 25. This presses down the plunger 14 and rocks the catch 9, 10 to release the flange 12 on the lid, which is then pressed open by the spring plunger 28. The piece 25 and the plungers are normally. blocked against downward movement by the dial 21 of a compass mounted in a recess at the bottom of the box. To permit release, the box has to be orientated so that a certain side faces a given compass direction when the dial 21 comes to rest in the position in which a notch 23 in the periphery of the dial is below the plunger 14. In the example shown, the front 1 of the box has to point towards the north. In order to oompensatafor possible tilting of the dial if the plunger is depressed before the box is orientated, lost motion between the plunger 14 and arm 10 of the catch is provided and a socket 22 is provided under the dial to support it against such tilting. In the construction shown in Fig. 7, the catch 9 engages. a member 13 on the lid and is released by sliding the plunger 14 by a stud 32 mounted on the side 1 of the box.
Patent GB-1100751-A (GB)
Title: Improvements in or relating to tuning arrangements
IPC: H03J3/00
Filed: 1965-01-29
Abstract: 1,100,751. Circuit assemblies. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 29 Jan., 1965 [1 Feb., 1964; 2 Sept., 1964], No. 4001/65. Heading HIR. [Also in Division H3] A multiwave-band tuner in printed circuit form comprises a distributed inductance line 5 (Fig. 4) joined to a lumped inductance 10 at one end and tuned by a capacitance diode D1 at the other. Other diodes D2, D3 act as variable capacitances or short circuits depending on the polarity of their bias, which is switched to change the waveband. Output is taken from a coupling loop 30.
Patent GB-1083595-A (GB)
Title: Curable compositions of poly-and monoepoxides
Inventor: SCHWARZER CARL GODFREY
IPC: C08G59/36
Filed: 1965-01-29
Abstract: Curable, fluid compositions comprise (1) a liquid or semi-solid glycidyl polyether of a polyhydric phenol and (2) at least one monoglycidyl ether of a monomethylolated monohydric phenol, in which only the phenolic hydroxyl is etherified, in a quantity of 1-50% by weight of the mixture.  The compositions are curable by means of the conventional epoxy resin curing agents.  The glycidyl polyethers may also be methylolated.  The compositions may also contain other conventional additives. They are useful for the manufacture of articles by casting, potting, coating or adhesively uniting them.ALSO:Monoglycidyl ethers of monomethylolated monohydric phenols in which only the phenolic hydroxyl groups are etherified are prepared by reacting the methylolphenols with epichlorohydrin in a MeOH/H2O mixture in the presence of NaOH.  The examples describe the preparation of a mixture of the ortho and para isomers of the glycidyl ether of methylolphenol; and the glycidyl ethers of methylol-p-cresol, methylol-o-allyl-phenol and methylol-4-nonylphenol.  The monomethylolphenols are prepared by the reaction of the corresponding phenols with formalin in a MeOH/H2O mixture in the presence of NaOH.
Patent GB-992786-A (GB)
Title: Tiltable transit mixer
Inventor: SWARTHOUT RASSELE EDWARDS
IPC: B28C5/42
Filed: 1964-01-30
Abstract: 992,786. Concrete mixers. CHALLENGE-COOK BROS. Inc. Jan. 30, 1964, No. 4081/64, Heading B1C; In a vehicle-mounted concrete agitator the rotatable drum 20 is carried on a sub-frame 13 the forward end of which can be raised by a hydraulic jack 70 to reduce the angle of inclination of the drum during discharge to approximately 6 degrees instead of the normal 16-20 degrees. A parallel linkage arrangement maintains vertical the pivot 53, 54 of the discharge shoot 50, the inclination of which can be adjusted by a hydraulic jack 60. As shown, the drum is rotated, through chain and sprocket gear 29, by an internal combustion engine 24 also mounted on the sub-frame.
Patent GB-161384-A (GB)
Title: Improvements relating to bakers' and like ovens
IPC: A21B1/46
Filed: 1920-02-10
Abstract: 161,384. Jayes, A. H. Feb. 10, 1920. Bakers' ovens.-In a baker's oven of the type having trays carried by frames pivotally suspended from links of two endless chains, an automatic trip-mechanism is provided at the discharging point. The trays are provided with movable sides 18, Fig. 3, both being pivoted to the rods 16 of frames 2. To discharge the trays a trip roller 20 is moved by the lever 19 into the path of the trays, which are thus tilted about the rod 16. A rack 21 on the tray then rotates the toothed segment 22 pivoted to the frame, operating the arms 23, 24, and lowering the side 18, when the loaves slide down to a conveyer. Combustion products from the furnace 35 pass up flues 37, across the oven by flues 38, 39 arranged between the conveyer tracks, and thence by flues 40 to the chimney. The conveyer is driven through the shaft 9 by gearing 12, 13 and the pulleys 27, 30.