baber/WOPTO huggingface dataset:
Patent GB-941685-A (GB)
Title: Improvements in or relating to medical testing devices
IPC: A61B17/20
Filed: 1961-10-18
Abstract: 941,685. Surgical needle guns. H. G. EAST. Oct. 10, 1962 [Oct. 18, 1961], No. 37378/61. Heading A5R. In a needle gun for use in making tuberculosis tests the needles are normally retracted behind a guard by a spring, from which position they must be pressed forward manually when necessary. A latch is provided, however, which prevents retraction of the needles after they have been pressed forward by a predetermined amount. In the form described the needles 6 are held in a block 14 on a head 8, being secured thereto by a threaded ring 16. A guard 4, having holes 5 through which the needles may pass, is carried at the end of a sliding rod 7 which is normally urged towards the left by a spring 18, so that the tips of the needles are protected. When the instrument is pressed against the patient's skin the spring 18 is compressed as the guard 4 is pressed back and the needles pass through the skin. After a predetermined penetration, however, a projection 9 on a spring- loaded plunger 13, enters a recess 11 in the rod 7 and holds the latter, at the same time giving an indication to the operator that the penetration has been made.
Patent GB-1114579-A (GB)
Title: Inks for ball point pens
Inventor: GULBINS KLAUS
IPC: C09D11/18
Filed: 1965-09-02
Abstract: A ball-point pen ink comprises a solution in a high boiling point organic solvent of a coloured copolymer which has been prepared from: (a) an aromatic monoethylenically unsaturated compound and/or (b) an ester of a monoethylenically unsaturated carboxylic acid and (c) a dye bearing an ethylenically unsaturated group, by copolymerization of (a) and/or (b) and (c) component (c) may be replaced by: (c) a monoethylenically unsaturated monomer bearing a reactive group and the copolymer obtained is reacted with: (f) a dye bearing a reactive group complementary to the reactive group borne by component (e).  In another modification, component (c) is replaced by: (g) a monoethylinecally unsaturated diazotizable monomer and the copolymer obtained is diazotized and then reacted with (h) a coupling component, to form a polymer dye. The coloured copolymer may contain units of (d) one or more further monomers.  The high boiling points solvent has a boiling point of not less than 125 DEG  C., those specified being 1,2-propylene carbonate, dicyclohexyl carbonate, diphenyl carbonate, adipate and phthalic esters such as diethyl or di-n-butyl phthalate, methyl glycol, ethyl glycol and benzyl alcohol. Monomer (a) is e.g. styrene or a substituted styrene, for instance p-methyl, p-chloro, o-chloro or p-hydroxystyrene. Specified monomers (b) include ethyl, n-butyl, cyclohexyl, 2-ethylhexyl and stearylacrylates, and methylmethacrylate. Suitable dyes (c) are azo, anthraquinone or triphenylmethane dyes containing a vinyl, acrylyl, acrylylamino, acryloyloxyalkyl or acrylyloxyaryl group.  Component (e) may be acrylamide, methacrylamide or a derivative thereof and component (g) may be p-aminostyrene.  In the examples, ethyl acrylate or methyl methacrylate are copolymerized with a dye of formula <FORM:1114579/C3/1> in solution in n-butyl acetate using azodiisobutyrodinitril as catalyst.  Benzyl alcohol is added to the resulting solution, from which the butyl acetate is then removed by distillation, to yield a red ink.  When methyl methacrylate is similarly copolymerized with a dye of formula <FORM:1114579/C3/2> an orange-red ink is obtained, with a dye of formula <FORM:1114579/C3/3> a yellow ink is obtained and with a dye of formula <FORM:1114579/C3/4> a violet ink is obtained.
Patent GB-858320-A (GB)
Title: Electromagnetic voltage regulator
IPC: G05F3/06
Filed: 1958-11-21
Abstract: 858,320. Automatic voltage regulators. NASTER, B. K. Nov. 21, 1958 [Nov. 21, 1957], No. 37566/58. Class 38 (4). An automatic voltage regulator comprises interconnected transformers 24, 26 and capacitors C 1 , C 2 . Primaries P 1 , P 2  of the transformers are connected in series across input terminals 16, 18 and secondaries S 1 , S 3  are connected in series between the junction of the primaries and an output terminal 12. The voltage across the secondary S 1  is in phase opposition to that across primary P 1 . The input terminal 18 is directly connected to an output terminal 14, feed-back is applied to the input, at terminal 16, through a secondary S 2  and the capacitor C 1  from the junction of secondaries S 1 > S 3 . Feed-back is applied across the primary P 1  by a parallel-connected secondary S 4 . A power factor correcting capacitor C 2  is connected across the output terminals. The cores of the transformers are arranged so that the secondaries S 2 -S 4  have a high leakage reactance.
Patent GB-1526500-A (GB)
Title: Method of colour correction
IPC: H04N1/46
Filed: 1976-09-10
Abstract: 1526500 Facsimile DAINIPPON SCREEN SEIZO KK 10 Sept 1976 [12 Sept 1975] 37620/76 Heading H4F A colour correction method for facsimile systems includes a three dimensional store of corrections or corrected colour values employing a colour coordinate address system derived by a functional translation of first colour coordinates which permits more economic store utilization. The first colour coordinates Cyan Magenta and Yellow are derived from a 1-1 mapping of primary Red, Green and Blue colour densities derived by scanning a colour orginal, together with logarithmic correction to compensate for ink colour limitations.
Patent GB-823431-A (GB)
Title: Gearing means for photographic roll-film cameras
Inventor: HENNIG WALTER
IPC: G03B19/04
Filed: 1956-12-10
Abstract: 823,431. Photographic roll-film cameras. ZEISS IKON DRESDEN VEB. Dec. 10, 1956, No. 37632/56. Class 98(1) In a roll-film photographic camera, winding means driving a sprocket 8 engaging perforations in the film 5 are connected by a gear train with the take-up spool 3 when the winding means is rotated in one direction, the gear train being disengaged when the winding means is rotated in the opposite direction. When sprocket 8 is turned anti-clockwise by a knob (not shown) a gear-wheel 10 fast with sprocket 8 drives a gear-wheel 13, connected to the take-up spool 3, through gear-wheels 11, 12. A slip clutch .allows for the effects of increasing diameter of the film roll. Gear wheel 12 is mounted on a spring-loaded arm 31 pivoted about the take-up spool axis. When the film is rewound by rotating the feed spool 4, sprocket 8 turns clockwise and gear wheel 12 slips ratchetwise on rotation of gear-wheel 11, so that motion is not transmitted to spool 3.
Patent GB-1200283-A (GB)
Title: Salt-supply container for a softening device
IPC: B01J49/75
Filed: 1968-08-07
Abstract: 1,200,283. Salt container for softening device. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 7 Aug., 1968 [10 Aug., 1967], No. 27694/68. Heading B1J. A salt supply container for a softening device in an electric domestic apparatus is characterised in that the bottom of the container can be urged against a pressure sensitive switch. The salt-supply container 1 comprises a tubular wall 3 provided with a screw-thread 5 to engage cover 7, a water-supply pipe 9 and a salt-solution discharge pipe 13 which abuts filter 15. The bottom 11 of the container is secured to a resilient pot 19 which has a resilient bottom 21 provided with expandable corrugations 23, to enable said bottom 21 to be raised and lowered, and supported by a base plate 25 having an annular part 27 embracing the pot 19 and secured to the container wall A compression spring 29 is arranged between the base plate 25 and the bottom of the container 11 and the base plate also carries a pressure sensitive switch 33 with contact 35. The switch 33 is connected into the main electric circuit of the apparatus in such a way that when a sufficient pressure is imposed, i.e. by weight of salt in the container, the circuit is complete. As the salt is washed away the weight on plate 11 decreases, the plate is raised by spring 29 and the circuit is broken.
Patent GB-1366093-A (GB)
Title: Assemblable furniture frame structures
IPC: A47B3/00
Filed: 1971-08-11
Abstract: 1366093 Chairs; furniture frames I BOLYOS 11 Aug 1971 [21 Aug 1970] 37754/71 Headings A4H and A4J A furniture frame, e.g. for chairs, beds, bed-settees, tables, comprises a pair of identical, opposed open, rectangular side portions 2, 2', and a pair of identical, opposed H-shaped front and rear portions 21', 21, each H-shaped frame portions 21', 21 being engaged with each of the side portions 2, 2' by inserting the U- section vertical limb 24 or 25 of the H-shaped portion within the opening defined by the side portion 2, 2' and moving the vertical limb 24 or 25 within the opening towards the front or rear post 7 or 8 or 7' or 8' of the side portion 2 or 2' until the limb fits around the post and snap latches 28 on the limb are received in recesses formed between ridges 9, 10 or 11, 12 on the post. Partitions 26 on the U-section horizontal limb 23 of the H-shaped portion 21' or 21 are received in recesses 14 traversing the ridges 9, 10 or 11, 12. Before the side portions and H-shaped portions are engaged, the side portions are held at the desired distance apart by a pair of identical cross beams 20', 20 that carry the seat and back support 30, 31 and that have reduced ends (19) that engage within openings 15 and 17 in the side pieces. The parts may comprise plastics, metal or wood.
Patent GB-828669-A (GB)
Title: Improved floating containers for transporting liquids
Inventor: LATHAM KENNETH GEOFFREY
IPC: B63B35/28
Filed: 1957-12-05
Abstract: 828,669. Floating containers. ESSO RESEARCH & ENGINEERING CO. June 16, 1958 [Dec. 5, 1957], No. 37872/57. Class 113. A collapsible container adapted to be towed on the surface of water when containing a liquid less dense than water, has a collapsible inner tube sealed, with both ends open, to the container so that towing of the container causes water to flow through the tube, thereby assisting stabilisation of the towed container.
Patent GB-305461-A (GB)
Title: Improvements in or relating to the assembling and jointing of pipes and the like
IPC: F16L13/11
Filed: 1928-12-22
Abstract: 305,461. Soc. MÚtallurgique du Perigord. Feb. 4, 1928, [Convention date]. Joints held by cement and the like ; sleeve joints; jointing tools and apparatus. - Relates to means for inserting asphalt between the abutting faces a of the ends 1, 1<1> of two pipes in order to secure fluid-tightness. The pipe ends are assembled and the inner side of the space between the faces a is closed by a band of paper 2 followed by a band of indiarubber 3, these two bands being pressed tightly against the walls of the pipes by an extensible mandrel composed of a spring steel blade 4, the ends 4<1> of which may be separated by a nut 8 as shown in Fig. 4. A divided metal belt 11 and leather bands 16, Fig. 5, are then applied to the pipe ends to close the outer side of the space between the pipe ends, after which asphalt, heated to a suitable temperature, is forced into said space from a receptacle 17, Fig. 8, which is mounted on a threaded stub-pipe 14 provided on said belt 11 by means of a piston 18 therein. The joint may be completed, after the removal of the mandrel 4 and the belt 11, by a reinforced cement ring 24 which is moulded in place between a casing 26 and two side pieces of wood 27, the casing being provided with an opening 28 for the insertion of the cement.
Patent GB-850888-A (GB)
Title: Process for the preparation of para-fluorophenol from para-bromofluorobenzene
Inventor: BOUDAKIAN MAX MINAS
IPC: C07C37/02
Filed: 1958-11-25
Abstract: A method for the preparation of para-fluorophenol is characterised by heating at a temperature within the range from 175 DEG  C. to 350 DEG C. in liquid phase a mixture of para-bromofluorobenzene, a material selected from sodium hydroxide, calcium hydroxide, sodium carbonate, sodium bicarbonate, calcium carbonate and calcium bicarbonate and water in weight amount 2 to 99 times the weight of said material, the pressure being sufficiently high to maintain the reaction mixture in liquid phase, whereby a salt of para-fluorophenol is formed and recovering para-fluoro-phenol from said salt, the molar ratio of said material to para-bromo-fluorobenzene being within-the range from 0,5 to 8 when said material is sodium hydroxide or sodium bicarbonate and the molar ratio of said material to para-bromofluorobenzene being within the range from 0,25 to 4 when said material is calcium hydroxide sodium carbonate, calcium carbonate, calcium carbonate and calcium bicarbonate and if desired carrying out the initial reaction in the presence of a catalyst comprising metallic copper or a copper or cobalt salt in an amount of from 0,1 to 10% by weight based upon the weight of the para fluorobenzene.  Among the catalysts specified are copper chloride, cupric acetate, cobalt and copper naphthenates, cupric or cuprous oxide or hydroxide and Devarda's metal.  Examples are furnished.  2,21-Dihydroxy-5,51-difluorobiphenyl sulphide is obtained by treating a carbon disulphide solution of para-fluorophenol with sulphur dichloride and may be employed as a fungicide (see Group VIII).ALSO:A fungicidal composition comprises 2,21-dihydroxy-5,51-difluorophenyl sulphide (see Group IV(b)) dissolved in petroleum ether.
Patent GB-846650-A (GB)
Title: Resilient paper covers for containers and method of manufacture
Inventor: CARTER PAUL H
IPC: B65D43/02
Filed: 1958-11-26
Abstract: 846,650. Closures for containers. MARYLAND CUP CO. Nov. 26,1958, No. 38076/58. Class 125(3). A paper lid 20 for a jar 24 having a beaded upper lip 23 comprises a top circular portion 21 overlying the lip and a dependent flanged portion 22 integral with the top and perpendicular to it so as to surround and contact the lip, the flanged portion having circumferentially-spaced vertical creases 27 and being crushed during manufacture so as to produce a relatively thick mass containing a multiplicity of random discontinuous circumferential folds to retain the vertical creases in a condition to impart resilience to the flanged portion. The thickened portion provides a hump 29 which snaps over the beaded rim. The lids are made from circular blanks, the first step being to produce the returned flange 22 by the use of a die, the flange being, at this stage, at an obtuse angle to the top 21. Radial compression of the flange then produces the thickening and folding as well as causing it to extend normally to the top 21. The cap may then be waxed or varnished.
Patent GB-947075-A (GB)
Title: Improvements in or relating to a method of manufacturing a yarn ply
IPC: D02G1/02
Filed: 1960-11-07
Abstract: A method of forming a yarn ply comprises twisting a number of yarn strands together in a first direction from a zero position, each strand possessing an initial twist of given magnitude in the first direction; thereafter twisting the strands in the opposite direction to return to the zero position; and continuing the twisting in said opposite direction through the zero position to an extent approximating to the given magnitude of the initial twist possessed by a yarn strand.  Continuous fibres of synthetic or semi-synthetic material are reduced to staple fibres and then spun to form the yarn strands.  To fix the initial twist in the yarn strands the strands are wetted by steam or moisture.  After the intertwisting in the first direction the yarn is wound on either metallic or cardboard tubes and subjected to steam to set the twist.  After twisting in the opposite direction the yarn is subjected to heat and/or dyed so that an elastic yarn is formed. The fibres may be of nylon, cellulose triacetate or a mixture of nylon with viscose or cellulose triacetate.
Patent GB-961204-A (GB)
Title: Improvements in or relating to nestable containers
IPC: B65D21/02
Filed: 1960-11-08
Abstract: 961,204. Nesting containers. W. ZARGES. Nov. 8, 1960 [Nov. 17, 1959], No. 38371/60. Heading B8P. A nestable container has inclined walls 1 formed with pairs of protuberances 6, 7 in opposite walls, one, 6, of each pair being inwardly directed and the other 7 being outwardly directed so that clearance a is provided between the walls 1 of nested containers. The containers have apertured sides, angled corner posts and a peripheral bead 5, a pair of the projections 6, 7 being formed one above the other in each corner post. The load bearing surfaces 8, 9 of the projections are slightly inclined inwardly, the outwardly directed projections on each container resting upon the inwardly directed projections of the container below. The projections can also be provided on the end walls. The container is provided with handles.
Patent GB-1511586-A (GB)
Title: Reflector for liquid crystal indicators and a method of production of it
IPC: G02B30/25
Filed: 1975-09-18
Abstract: 1511586 Controlling light BBC BROWN BOVERI & CO Ltd 18 Sept 1975 [20 Sept 1974] 38385/75 Heading G2F A display device comprises a polarizer between a liquid crystal cell, e.g. an electro-optic nematic "twist" cell, and a reflector formed of bronze paint i.e. comprising flaky metallic pigment. The paint may be coated on the polarizer or on a further substrate. The pigment may comprise A1 powder, goldcoloured Cu or Cu-Zn alloys or silver coloured Cu-Zn-Ni alloys and may be heated in iron pans to give other colours ("temper tints") or mixed with tar colourants for the same purpose. Suitable binders are proposed. The paint may be applied by screen or roll printing. A further layer of a transparent (but coloured) paint may be provided between the polarizer and reflector. Different parts of the device may thereby be caused to have different colours.
Patent GB-1532814-A (GB)
Title: Protection device for disconnecting a current supply from a load in response to a ground fault current
IPC: H02H3/33
Filed: 1975-09-18
Abstract: 1532814 Detecting earth leakage GENERAL SIGNAL CORP 18 Sept 1975 [9 Oct 1974] 38386/75 Heading H2K  A differential-transformer earth leakage detection system includes an auxiliary transformer T2 connected between live and neutral conductors and functioning both as an autotransformer to provide a power supply for a fault-signal amplifier A1 and as an ordinary transformer to induce an auxiliary voltage into a winding 115 in the neutral lead so as to provide grounded-neutral protection. When the A.C. output of the fault-signal amplifier A1 is high enough to break down a Zener diode 23, an SCR, triac or transistor is switched on to actuate a switch 106, 107.
Patent GB-1016779-A (GB)
Title: Improved adhesive composition and process for preparing it
IPC: D21H19/04
Filed: 1963-09-30
Abstract: An adhesive composition is prepared by mixing diammonium phosphate, casein and an aqueous dispersion of zinc oxide and/or aluminium oxide and heating the mixture to solubilize the casein.  Aqueous emulsions of low pH or alkaline resins (many examples of which are given, including natural and synthetic rubbers, polyolefines, alkadiene-acrylonitrile copolymers, polyvinyl halides, and polyvinyl lower alkyl ethers) and conventional additives, e.g. defoamers, plasticizers, antioxidants, pigments, dyes, fillers and curing agents, may also be included.
Patent GB-1057426-A (GB)
Title: Improvements in electric cable installations
Inventor: ENDACOTT JOHN DERRICK
IPC: H01B9/06
Filed: 1964-09-24
Abstract: 1,057,426. Cables fluid-filled ducts. BRITISH INSULATED CALLENDER'S CABLES Ltd. Sept. 23, 1965 [Sept. 24, 1964], No. 39000/64. Heading H2C. [Also in Division H1] Electric cables 4 are cooled by passing along them, either in a duct in the cable or in an associated conduit, a fluid which is usually but not necessarily the insulating oil with which the dielectric is impregnated, the heated fluid returning through pipes which follow substantially the same routes as the cables and incorporate heat exchangers forming a major part of their length. Fig. 1 represents an installation for three buried 400 kV. oil-filled cables with hollow conductors. The pumps 9 and 10 extract oil from the lengths of cables connected at the stop joints 5, 8 and circulate it through the heatexchangers, which in this case are four parallel pipes 12 in a duct 13, 18, 21 through which air is passed by blowers 14, 19 &c. The oil from pump 10 returns to the cables through pipe 12e, the oil and air flows in successive sections being preferably arranged as shown by the arrows. Apart from air vents the whole system can be located underground. A number of alternative embodiments are described.
Patent GB-1329047-A (GB)
Title: Hot air type cooking ovens
IPC: F24C15/20
Filed: 1971-08-20
Abstract: 1329047 Gas heated cooking ovens RINNAI SEISAKUSHO KK 20 Aug 1971 [16 Dec 1970] 39263/71 Heading F4W In a forced connection gas heated cooking oven, the fan 7 is mounted behind a plate 2, with air passages at one or both sides, the burner 11 is mounted in a combustion chamber to deliver gases through a passage 12 in front of the lower edge of a window 8 in the plate 2 and a removable liner 15, 16 is provided in the or each vent pipe 17, 18 extending upwardly from a rear wall of the fan chamber. The combustion chamber 10 and fan motor 20 are located below the oven chamber 3 of a cooker, and the plate 2 is spaced from the side walls to allow for the circulation of the gases, Fig. 2. Two vents 14 near the lower edge of the fan 7, lead to lined exhaust pipes 18 extending to above the hob plate, and a higher vent 13 leads to lined exhaust pipe 17. When the fan motor is running, the vents 14 are shielded by the air currents from the fan, but when the fan stops, these vents are freed so that the main vent 13 may be restricted without affecting combustion when the fan is not running, The liners allow the vents to be easily cleaned.
Patent GB-1510079-A (GB)
Title: Electroplating process and electroplating solution
IPC: C25D3/16
Filed: 1976-09-22
Abstract: Deposits produced by electroplating which contain a metal from the group nickel and cobalt, or a binary or ternary alloy of metals from the group nickel, iron and cobalt, are obtained by passing a current through an aqueous, acidic electroplating solution which contains compounds which release the ions required for the desired deposit or in which the metals are supplied by the anode. In order to achieve deposits having increased ductility, increased brightness, greater hiding power and improved levelling, the deposition is carried out in the presence of from 10 to 2000 micromol per litre of an organic disulphide compound or a salt or ester thereof, of the formula  R1-S-S-R2,  in which R1 and R2 are <IMAGE>  where n is zero or an integer from 1 to 5,  X1 represents -OH, -NH2, <IMAGE> or <IMAGE> or an ester thereof, and X2, X3 and X4 have the same meaning as X1 or mean H, X3 and X4 not simultaneously being H.