baber/WOPTO huggingface dataset:
Patent GB-217026-A (GB)
Title: A facing for insulating slabs for use in refrigerating-chambers and for similar purposes
IPC: E04C2/26
Filed: 1923-05-23
Abstract: 217,026. Broadfoot & Sons, Ltd., J., and Robertson, J. G. May 23, 1923. Non-conducting coverings for heat.-Heat-insulating slabs for use in refrigerating chambersare faced on either or both sides with magnesite cement to the surface of which a laver of rubber sheeting is caused to adhere, a final layer of magnesite cement being applied if desired. The rubber sheeting consists of any suitable woven fabric impregnated with rubber and vulcanized, and is preferably attached to the magnesite cement by the adhesive described in Specification 216,953, [Class 70, India-rubber &c.], consisting of animal or fish glue and formalin or formaldehyde with the addition of an alkaline earth or weak alkali.
Patent GB-646830-A (GB)
Title: Improvements relating to let-off mechanism for looms
IPC: D03D49/06
Filed: 1948-05-20
Abstract: 646,830. Looms. CATTERALL, N. May 20, 1948, No. 13634. [Class 142(ii)] A let-off mechanism at each end of a warp beam for a loom incorporates a stationary bearing A for a beam ruffle B, the bearing being provided with serrated gripping surfaces C. A chain D having similar serrated surfaces E passes over the ruffle, and at one end is detachably connected to a spring controlled bolt F on the loom and at the other end is attached to a short lever H which is fulcrumed to the bearing A and detachably fixed to a hook bolt K. The bolt K is connected by a chain or other connection to a cranked coupling rod O which passes through a lever N, the coupling rod being also connected at a similar lever and chain mechanism at the other end of the loom. The front end of the lever N has a cam surface N<1> which operates in conjunction with a runner N<2> on a slay sword P. As the slay comes forward the runners on the slay swords and the cam surfaces momentarily increase the pressure of the gripping surfaces on the beam ruffles. The lever N is provided with a compression spring Q mounted on a bolt Q<1> passing through a slot in the lever and a bracket Q<2> on the loom frame. The spring Q acts as a fulcrum for the lever N. Two lugs N<4>, N<5>, Fig. 2 (not shown) are bolted through the slot in the lever N, one on each side of the spring Q and are adjusted to contact an adjacent portion of the loom to prevent any backward or forward movement of the lever. One end of the rod O is provided with a handle O<2> for turning the rod to slacken the chains D when required. The lever N, which may be made in two parts bolted together, may have a lug or stop N<7> at its end 'to limit the turning movement of the rod O. Specification 358,991 is referred to.
Patent GB-136845-A (GB)
IPC: B65H19/22
Abstract: 136,845. Great Northern Paper Co., (Assignees of Pope, C. E.). July 13, 1915, [Convention date]. Feeding, winding, and registering webs.-Consists in a method of and apparatus for continucusly winding paper. The receiving roller, which co-operates with a winding-drum, is mounted in a frame which, after the roller has received a few turns of paper, is moved to transfer the roller to a second frame in which the roller is supported during the completion of the winding by the drum, the first frame being meanwhile returned to its initial position and furnished with a new receiving roller so that when the first roller is filled the web may be severed between the rollers and the free end conducted round the new roller. As shown, the paper passes from the roller 10 of a paper-making or calendering machine under guidebars 18, 20 and an intermediate guide-grip 21 on to the surface of a winding-drum 30. During the initial stage of the winding operation, the receiving roller 31, Fig. 3, is carried in open bearings 47 in a frame comprising a pair of sectors 40 mounted on pivots 41 eccentric to the drum 30. The sectors 40 are provided with teeth 43 engaging pinions 44 on a shaft 45 provided with a handwheel 46 so that after the roller 31 has received a few turns of paper the sectors 40 are moved into the position shown in Fig. 4 to transfer the roller 31 to open bearings 53 in a second frame comprising a pair of arms 50 pivoted on a shaft 51. As the winding continues, the arms 50 move to the left and the roller 31 is withdrawn from the recesses 4'7 of the sectors 40. The sectors are then turned to a position, Fig. 1, in which a new receiving roller inserted therein is out of contact with the drum 30. When the old roller is completely wound, the sectors are moved slightly to the right to bring the new roller into contact with the drum 30, as shown in Fig. 3, and the web is severed in a slanting direction between the old and new rollers by a blast of air or steam or by other mean, and the free end is deflected and held on to the new roller by the blast. The filled roller is then removed and the arms 50 returned to the position shown in Fig. 3 by turning a hand-wheel 52 on the shaft 51. If a web should break, the free end is guided by a weighted guide 13, Fig. 1, into a shoot 17 in which is a fixed knife 28, and a blast of air or steam is then directed on to the web to cause it to be severed against the knife 28 and to deflect it against the grid 21 so that it is again directed on to the drum 30.
Patent GB-867992-A (GB)
Title: Disubstituted nitrosamines, disubstituted ammonium nitrites and amine-nitric oxide addition compounds and a process for their preparation
IPC: C07C291/04
Filed: 1957-05-01
Abstract: The invention comprises a process for the production of solid amine-nitric oxide addition products comprising reacting nitric oxide, in the absence of a solvent for said addition product, at a temperature below 66 DEG C. with a secondary amine in which there is at least one methylene group alpha to the amino nitrogen.  These addition products are of formula R2N(NO)2-\sSNH2R2, where at least one of the R groups has a methylene group adjacent to the amino nitrogen.  Preferred products, which are claimed per se, are those in which R is an alkyl group or R2 is an alkylene group joined to the nitrogen atom in a cyclic structure, at least one methylene group being alpha to the amino nitrogen.  The addition products undergo further reactions as follows:- (a) when heated to at least 66 DEG C. the corresponding nitrosamine is formed; (b) when dissolved in an aqueous solution containing a sulphide, chloride, bromide, cyanide, nitrate or pyridinium chloride of Mn, Co, Cr, Cu, Ni, Sn or Fe, or a nitric oxide complex of such a salt, the nitrosamine is formed; and (c) when dissolved in methanol, a mixture of nitrosamine and disubstituted ammonium nitrite is formed.  When the addition products are formed in the presence of an aqueous or alcoholic solution of an alkali metal hydroxide, alkali metal salts of the addition products are obtained; and when an aqueous solution of such a salt is reacted with an aqueous solution of a heavy metal, e.g. the chlorides of Ca, Ni, Co, Cu, Sr and Fe, the heavy metal salts of the addition products are obtained.  These salts have the general formula [R2N(NO)2]n M.xH2O, where M is the metal, n is its valency (1 or 2) and x is 1/2 -4.  Such salts, wherein R is an alkyl group or R2 is an alkylene group joined to the nitrogen in a cyclic structure, there being at least one methylene group alpha to the amino nitrogen, and in which M is Na, K, Ca, Ni, Co, Cu, Sr and Fe, are claimed per se.  When the addition products are reacted with a dialkyl sulphate, an alkyl halide or an aralkyl halide at up to 60 DEG C. and the mixture is extracted with an organic solvent, the organic solvent contains a compound of formula R2N(NO)2R1, where R1 is the alkyl or aralkyl radical.  These may be separated from the solution, and have the structure:  <FORM:0867992/IV (b)/1> These derivatives are claimed per se when R is an alkyl group or R2 is an alkylene group joined to the nitrogen in a cyclic structure, there being at least one methylene group alpha to the amino nitrogen.  Specification 867,993 is referred to.
Patent GB-923038-A (GB)
Title: Gamma-ferric oxide
IPC: H01F1/03
Filed: 1961-04-17
Abstract: Gamma ferric oxide, the minimum axial ratio of the crystals of which is at least 4:1, is produced by dehydration, reduction and oxidation of ferric oxide hydrate formed by the oxidation of metallic iron by oxygen or air in the presence of an aqueous ferrous salt solution in which ferric oxide hydrate nuclei are suspended, the formation of the FeO(OH) being carried out with a formation velocity of 1g. FeO(OH) per litre per hour at an initial FeO(OH) nuclei content of from 5 to 10 g/l., and the reaction being broken off when the amount of FeO(OH) formed amounts at most to six times the amount by weight of nuclei initially employed. The FeO(OH) nuclei are produced by the rapid oxidation of an aqeuous ferrous hydroxide suspension by oxygen or air within a period of at most 10 hours.  Ferrous sulphate is the preferred ferrous salt and suitably has a concentration of 3 to 5%. The conversion of the ferric oxide hydrate to g -ferric oxide is effected in known manner preferably by heating at 400 DEG  to 440 DEG C. under reducing conditions until the ferrous iron content of the material amounts to 23 to 25% and subsequently oxidising the reduced material at 200 DEG -260 DEG C.  It is stated that the g -ferric oxide crystals produced have a length of 0,4 to 0,6m  and a breadth of 0,05 to 0,1m  and that the g -ferric oxide has a saturation remanence of at least 460 Gauss g-1 cm3 and a copying suppression of more than 60dB.  The g -ferric oxide is particularly suitable for the production of laminated magnetic storers for sound, picture and impulse recording.
Patent GB-612537-A (GB)
Title: Improvements in or relating to electric torches
IPC: F21L4/00
Filed: 1946-05-07
Abstract: 612,537. Battery lamps. EVER READY CO. (GREAT BRITAIN), Ltd., and GLAZE, N. May 7, 1946. No. 13839. [Class 39 (ii)] To obtain a metallic connection between the battery and the anodized aluminium casing of an electric torch the anodizing is removed, as by a reamer, from the rear end of the casing and the screw cap comprises a coil spring arranged to rotate therewith and contact the base of the battery, a contact member being associated with the outer convolution of the spring to engage the end of the casing. Where the spring is friction tight in the cap its end may be off set as at 6, Fig 1, to cross the end of the case at an angle. A metal plate secured in the cap may have peripheral tongues 6, Fig. 4, inclined inwardly to the axis of the cap, at least one of which clips over the spring. In another form radial tongues are each bent upwards and downwards so that at least one may engage over the spring while the outer portions of all engage the edge of the casing.
Patent GB-742385-A (GB)
Title: Improvements in milling cutters and like rotary tools of the inserted tooth type
Inventor: ROE EVERETT WRIGHT
IPC: B23C5/24
Filed: 1952-06-03
Abstract: 742,385. Milling-cutters. BRITISH THOMSON-HOUSTON CO., Ltd. June 22, 1953 [June 3, 1952], No. 13875/52. Class 83 (3). A milling cutter or like rotary tool comprises a number of teeth 8, Figs. 1 and 3, held in dovetailed slots by pressure applied through a deformable tongue 9 forming a part of an insert 5 and constituting a wall of the slot. The dovetailed slot is formed wholly in the insert 5 or partly in the body, Fig. 5, and partly by the insert. The tongue is deformed to clamp the tooth by screws 12.
Patent GB-1470682-A (GB)
Title: Filtering presses
IPC: B01D33/04
Filed: 1974-03-28
Abstract: 1470682 Filtering press A BAHR 28 March 1974 [28 Aug 1973] 13890/74 Heading BID Sewage sludge is delivered at 7, 8 onto the upper face of endless filter belt 9 where it undergoes filtration, first by gravity alone and then assisted by vibrator 23, the sludge then being pressed between belt 9 and a second filter belt 10 and carried therebetween, first between rolls 33, 34 and then around a roller drum 13, against which the belts are pressed by spring-loaded rolls 14. Drum 13 is rotated at a different linear speed from the belts and possibly in the opposite direction by motor 18, so that sludge is kneaded in passing round the drum. Rolls 14 are arranged to exert increasing pressure in the direction of belt movement and may also be adjusted together by means (16, 38). Baffles 25 drain filtrate to outlet 31, and dried solids are discharged at 32. As shown belts 9 and 10 are each supported by stronger support belts 11 and 12 in passage round drum 13. Belts 11, 12 are driven by motor 19 and comprise longitudinal chains and cross bars. Belts 9, 10 are woven wire or plastics or both wire and plastics, with a mesh of 10 to 100 microns. Pump 1 delivers the sludge to inlet 7, 8 via a mixer 2 wherein flocculant is added through hollow shaft 4. Sprays 26 wash belts 9, 10, and all belts are individually tensioned.
Patent GB-1334208-A (GB)
Title: N-alkylated lactams and n-cycloalkylated lactams
IPC: B01D17/02
Filed: 1972-03-24
Abstract: 1334208 Dehydrating gases GAF CORP 24 March 1972 [25 March 1971] 13904/72 Heading B1L In a process in which an N-alkyl- or N- cycloalkyl-lactam is used to dehydrate a gas, the dehydrated gas, which may be a fuel. or syngas, is washed with a solvent for the lactam which has a higher boiling point than the lactam. Both lactam and solvent are regenerated and recycled to the process.
Patent GB-1431536-A (GB)
Title: Power steering device
IPC: B62D5/06
Filed: 1974-03-29
Abstract: 1431536 Power-assisted steering mechanism FORD MOTOR CO Ltd 29 March 1974 [4 April 1973] 13938/74 Heading B7H Power-assisted steering mechanism for a motor vehicle comprises duplicated drive chains 22, 24 connecting sprockets 16, 18 on a shaft 14 carrying a steering wheel to sprockets 22, 24 on a shaft 20 carrying a pinion 30 meshing with a rack 32, spring-loaded tensioning members 48, 50 acting on the respective runs of the chains 22, 24 being mounted on parallel links 40, 42 so that they move in a respective direction when either of the chain runs in under a tensile load, and a power steering valve 78 having a spool 81 arranged to be displaced by the links 40, 42 in response to movement of the tensioning members 48, 50 for directing fluid to a power cylinder acting on the rack 32.
Patent GB-1414308-A (GB)
Title: Liquid level control
IPC: G05D9/12
Filed: 1972-03-24
Abstract: 1414308 Liquid level measuring PLESSEY CO Ltd 2 Feb 1973 [24 March 1972] 14031/72 Heading G1N [Also in Division G3] In a liquid level controlling apparatus (see Division G3), the liquid level is measured using a hollow float having a ferrite slug mounted thereon, and a coil which is arranged in an oscillator whose frequency is determined by the position of the slug relative to the coil. The oscillator output is applied to a Schmitt trigger whose output is applied to a pump circuit which provides a D.C. voltage representative of liquid level.
Patent GB-1235606-A (GB)
Title: Improvements in or relating to packages and methods of manufacturing such packages
IPC: B65D75/34
Filed: 1969-03-18
Abstract: 1,235,606. Packages for foodstuffs. MARS CHOCOLADEFABRIEK N.V. 18 March, 1969 [20 March, 1968], No. 14047/69. Heading B8C. A package for chocolate bars 9 comprises a plastics foil receptacle including a rectangular bottom 2 having at two opposite edges, upstanding walls 3 each having a flange 4, and a covering sheet 8 of, e.g., paper or cardboard, bonded to the flanges 4 and to downwardly directed flanges 7 on the bottom 2. A plurality of receptacles may be simultaneously manufactured by deep drawing a flat sheet 1, the upstanding walls 3 of adjacent receptacles being joined by the flanges 4 or, as shown in Fig. 3, by the flanges 4 and additional walls 5. In variations of the package, a plurality of receptacles disposed side-by-side (Fig. 4, not shown) may have a common corrugated cover 8. Or a plurality of longitudinally disposed receptacles, Fig. 3, may have a common cover. Tear strips or weakened lines may be provided on the receptacle for opening; gripping recesses 10 being also provided to facilitate holding the package during opening.
Patent GB-141428-A (GB)
Abstract: 141,428. Jackson, J. M. Jan. 15, 1919. Baths.-The wall 2 of a trap is made integral with a bath 1 and skirting 3. A grating 4 is made with a depending tube 6 which dips into the water and establishes the .trap.
Patent GB-1465603-A (GB)
Title: Method of producing an electrophotographic developer and a  developer produced by such a method
IPC: G03G9/13
Filed: 1974-03-29
Abstract: 1465603 Electrophotographic developer polymer compositions AUSTRALIA DEPT OF MFG INDUSTRY 29 March 1974 [2 April 1973] 14149/74 Heading C3P [Also in Division G2] A method of producing an electrophotographic developer comprising an electrically insulating carrier liquid having developer particles suspended therein comprises adding a polymer to a selected solvent such that the polymer dissolves in the solvent and the dissolved molecules of the polymer take up solvent, thereby forming the carrier liquid; and mixing the liquid with a particulate solid toner material whereby some of the carrier liquid is taken up by the toner material and expands so as to break some of the molecular bonds within the toner material and reduce the size of the latter to molecular or macromolecular form, thereby forming the desired developer particles suspended in the carrier liquid. Preferably the carrier liquid is agitated as it is mixed with the toner material. The polymer may be a styrenebutadiene copolymer, polyethylene, vinyltolueneacrylic copolymer, polystyrene, other hydrocarbon polymers, acrylic-styrene copolymer, styrene-acrylic-acrylonitrile copolymer, an acrylic polymer, styrene-acrylonitrile copolymer, vinylidene chloride polymer, vinyl propionate polymer or acrylonitrile-butadiene copolymer. Useful solvents are isoparaffinic hydrocarbon liquids. Examples of toner materials are carbon black; metal chromates, oxides, sulphides, selenides etc.; metal powders such as aluminium, bronze and zinc powders; fluorescent pigments; and organic pigments such as phthalocyanine pigments and aniline black.
Patent GB-1261933-A (GB)
Title: The use of triazole derivatives as coupling compounds for diazo printing
IPC: G03C1/58
Filed: 1969-03-18
Abstract: 1,261,933. Photographic materials. RENKERBELIPA G.m.b.H. March 18, 1969 [April 9, 1968], No.14195/69. Heading G2C. Couplers for one or two component diazotype materials are triazole compounds of formula wherein X and R may be the same or different and each represents hydrogen or a substituted or unsubstituted C 1 -C 4  alkyl or alkenyl, aralkyl, aliphatic acyl or aroyl group; Y represents one, two or three of the groups hydroxyl, halogen, OR' -O-CO-R', R" and R"' each represent a substituted or unsubstituted C 1 -C 4  alkyl group, or R" and R"' together with N form a heterocyclic ring; A is an aromatic or heterocyclic ring system comprising not more than 3 condensed rings, and Z is an oxygen or sulphur atom. The support for the material may be a transparent cellulose paper or cellulose paper coated with silica.
Patent GB-1029111-A (GB)
Title: Improvements in or relating to charge/discharge machines for nuclear reactors
Inventor: LOCKETT GEORGE EDWARD
IPC: G21C19/16
Filed: 1964-04-06
Abstract: 1,029,111. Fuelling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 2, 1965 [April 6, 1964], No. 14197/64. Heading G6C. Channels in a reactor core 1 are fuelled by a charge machine M which is lowered to the bottom of a tube 14, after depressurization of the reactor, from a containment shell 22, the tube extending through the top cap 6 of the pressure vessel. During its passage through the tube 14 the machine is in its folded condition denoted by dash lines but on reaching the bottom an arm 40 is released to unfold by gravity to the horizontal position and an extension 43 of the arm is also unfolded to the horizontal position. The arms 40, 43 carry a trackway for a fuel element transfer trolley which is subsequently lowered from the shell 22 together with drive motors for controlling the rotation of the arms about a central vertical axis and for controlling a grab on the trolley. The trolley includes a propulsion motor for moving it along the arms 40, 43 and also a T.V. camera. The fuel elements are removed from the core channels by the trolley grab and are removed from the pressure vessel by lowering them by the grab through a channel 21 in the reflector 2 and a penetration 19, Fig. 1 (not shown), extending through the bottom of the vessel.
Patent GB-763742-A (GB)
Title: Improvements in or relating to step ladders
IPC: E06C1/16
Filed: 1954-05-17
Abstract: 763,742. Step ladders. MATTHEWS. C. H. May 11. 1955 [May 17, 1954], No. 14332/54. Class 20(2) The top tread 7 of a step ladder consists of an extruded or rolled section having two downwardly depending parts 8, 9 to which the ladder sides 10, 11 are secured, the depending part 9 having formed at the lower end thereof an outwardly extending beading 13 which forms the hinge pivot, the other part of the hinge comprising a part 14 having a channel section 15 thereon in which the outwardly extending beading 13 is located, the strut members 16, 17, of the ladder being secured to the hinge part 14. The strut members 16, 17 are of L-section and lie in abutment with the side members 10, 11 to prevent lateral movement of the hinge part 14.
Patent GB-312063-A (GB)
Title: Improvements in electric devices for heating a metal melt within a ladle
IPC: H05B6/22
Filed: 1929-05-08
Abstract: 312,063. Krupp Akt.-Ges., F. May 18, 1928, [Convention date]. Induction furnaces.-The contents of a ladle are heated by currents induced therein by a high frequency coil D embedded in a hollow cylinder C provided with extensions by which it may be suspended in the ladle The element is wholly immersed and the metal circulates therethrough. The coil is hollow and is fed at 8000 cycles. Specifications 9459/10, 1609/11, 274,888, 275,249, and 277,361 are referred to.
Patent GB-475192-A (GB)
Title: Improvements in or relating to caps for filling orifices of tanks and the like
IPC: F01P11/02
Filed: 1936-05-22
Abstract: 475,192. Closures for filling orifices of tanks &c. TECALEMIT, Ltd. (Soc. Anon. Tecalemit) May 22, 1936, No. 14444. [Class 21] A cap for the filling orifice of a tank &c. which is readily detachable, but is secured against accidental displacement, comprises a closure 1 having a washer 4 which contacts with a rib 24 on the container, and containing a spindle 6 carried by a wing knob 11, the spindle being slidable and rotatable in the closure 1 and being pressed upwardly by a spring 14. A cross-bar 9 of channel section with a projection 17 at one or both ends is mounted on the spindle and is adapted to engage under a pair of projections 25 in a bush 20 on the tank, each projection 17 lying against one side of a projection 25. A washer 22 ensures a tight joint between the bushing and the tank.