baber/WOPTO huggingface dataset:
Patent GB-932595-A (GB)
Title: Integral bearing mouting and dismounting means
IPC: B21B31/07
Filed: 1962-04-25
Abstract: 932,595. Assembling force fits. MORGAN CONSTRUCTION CO. April 25, 1962 [Sept. 1, 1961], No. 15696/62. Class 83 (4). Means for mounting or dismounting a bearing having an inner rotatable sleeve 20 and a non- rotating chock 26 on the roll neck 4 of a roll 2 in which the roll neck has an axial extension 10, 12, 14 comprises a threaded ring 68 removably positioned on said extension, removable means securing said ring to said extension, a nut 70 on said ring, means acting in compression or tension between said sleeve and nut whereby on rotation of said nut in one direction the sleeve is forced on to said roll neck and when rotated in the opposite direction the sleeve is forced from said roll neck, said threaded ring, nut, sleeve, chock and associated means being removable as a unit from said roll neck and extension. Keyed to the sleeve 20 is a sleeve ring 34 slidably mounted on the extension 10 of the roll neck and its outer end abuts and is keyed to the inner race 40 of a thrust bearing 42 having two separate outer races 50 and 52 and a plurality of rollers 54. The sleeve 20 and thrust bearing 42 are enclosed in a watertight structure comprising the chock 26 and end plates 62 and 66. The nut 70 has an inner abutment 72 adapted to engage the outer end of race 40 and an outwardly extending flange 74. A clamp ring 78, Fig. 5, located in a groove 18 in the extension 14 limits movement of the threaded ring 68. A key 92 on the clamp ring engages in a keyway 102 in the threaded ring 68 which is in alignment with a keyway 104 in the extension 12. When threaded ring 68 has been backed off to the position shown in Fig. 1 by rotation of the nut 70 which engages the inner race 40, the outer end of the threaded ring 68 engages a notch 98 in clamp ring 78 so that further rotation of the nut provides a compressive force acting through the inner race 40, sleeve ring 34 and flange 36 to force the sleeve 20 on to the roll neck. Conversely if the nut is rotated in the opposite direction the flange 74 engages a flange 76 on the end plate 66 and the threaded ring 68 moves until it abuts a shoulder 16 on the extension 10. Thereafter as the nut is further rotated tension forces are set up on the end plates 66 and 62 and the chock 26 causing a flange 48 on a bushing 28 to engage a flange 46 on the sleeve 20. Further rotation of the nut causes the nut to move axially and thus withdraw the sleeve 20 from its force fit position on the roll neck. Finally, the clamping ring 78 is removed and the entire bearing structure is slid off the roll neck. The nut is rotated by means of a cable attached to one of three circumferentially spaced pins 112, Fig. 3, and then wrapped around the nut, the other end of the cable being connected to the hoist of a crane so that as the cable is raised the weight of the roll assembly compels the nut to rotate. The nut 7 is locked during operation of the roll by a circular check nut 116 attached to the nut 70 by a plurality of screws 118. Specifications 398,332 and 720,745 are referred to.
Patent GB-531076-A (GB)
Title: Improvements in or relating to thermionic electrode structures
IPC: H01J1/20
Filed: 1939-05-26
Abstract: 531,076. Thermionic cathodes. STANDARD TELEPHONES & CABLES. Ltd.. and PARKER. P. May 26, 1939, No. 15708. [Class 39 (i)] A thermionic valve comprises a tensioned non- rigid tubular indirectlyheated cathode element with an insulated heater wire extending loosely through it. In the form shown, a number of tubular cathode elements C of copper coated with emissive material are disposed in a coplanar and parallel relation between two lavite end members E. The tensioning is effected by springs S seated in recesses in the member E with one end joined by a wire W to the cathode element. The other ends of the cathode elements are fixed by stalks or projections into the other member E, for instance as described in Specifications 523,460 and 530,300. Insulated hairpin heaters H are provided. Instead of individual springs, a single end bridge member may be attached to a spring or springs to tension all the elements. Examples of dimensions are given and the elements preferably have a length more than thirty times the smallest width dimension.
Patent GB-570689-A (GB)
Title: Improvements in and relating to nozzles for metal-cutting torches and the like
IPC: F23D14/54
Filed: 1943-09-29
Abstract: 570,689. M e t a l cutting burners. HOBBS, J. Sept. 24, 1943, No. 15722. [Class 75 (i)] A metal cutting torch comprises a tube 1 screwing into a torch head 5 and surrounded by a sleeve 9 secured to the torch head by a nut 14, the bore 2 of the tube 1 registering with the cutting oxygen passage 4 in the torch head and being of reduced diameter at its lower end, and the outer surface 7 of the lower end of the tube being formed with parallel channels 7 surrounded by the cylindrical bore 10 at the bottom of the sleeve and extending upwards to slightly above the bottom of a flared portion 12 of the internal surface of the sleeve for the passage of combustible gas. The channels 7 are of decreasing depth at their upper ends 8.
Patent GB-402462-A (GB)
Title: Improvements in the manufacture of aliphatic anhydrides
IPC: C07C51/573
Filed: 1932-06-04
Abstract: Water is removed from aliphatic anhydrides as an azeotropic mixture with methylene chloride.  The methylene chloride may be injected as liquid or vapour into the anhydride reaction vapours so as to carry off the water while the anhydride and remaining acid are condensed; or the reaction vapours may be led, preferably after limited cooling, below or upon the surface of a body of methylene chloride.  The methylene chloride may be used alone or mixed with other liquids such as light paraffins, gasoline, kerosene, ethers, or mixtures of ethers with petroleum hydrocarbons for instance mixtures of ether with petroleum ether, benzene, or homologues of benzene.  In an example, methylene chloride is sprayed into the vapour obtained by thermal decomposition of acetic acid, and the mixture is led into the lower part of a fractionating column, and methylene chloride is also added at the top of the column in quantity more than sufficient to remove all the water.
Patent GB-287751-A (GB)
Title: Improvements in hinges for the lids of gramophone and other cases
IPC: G11B33/02
Filed: 1927-06-14
Abstract: 287,751. Cozens, G. A., and Samuel & Sons, Ltd., B. June 14, 1927. Disc and like plate hinges. - The lid 13 of a case 1, particularly a gramophone case, has plate hinges 21 so that when the lid is opened it can be swung over the end of the case into an upright position, and in combination a which may be flap 20 for closing any opening which may be left in the end of the case when the lid is closed, the flap being hinged to the end of the case and caused to move the lid. As shown, the plates 21 secured to the lid 13 and are connected by hinge pins 25 to the sides of the case 1, the flap 20 being hinged at 26 and provided with pins 22 which slidably engage with slots 23 in the hinge plates. The slots may be formed in the lid. The plates 21 may be pivotally attached to the lid and the flap hinged to the lid. A spring may be provided to return the flap. Specification 280,097, [Class 40 (ii), Phonographs &c.], is referred to.
Patent GB-355672-A (GB)
Title: Improvements in and applicable to photo-electric cell circuits
IPC: H01J40/14
Filed: 1930-05-24
Abstract: 355,672. Converting electric currents. MARSHALL, C., 25, Harrington Drive, Nottingham. May 24, 1930, No. 15999. .[Class 38 (ii).] In an amplifier for handling the output from a photo-electric cell the necessary operating voltages are derived from the mains through a filter or smoothing circuit. The supply voltage, preferably raised to approximately 1000 volts, is fed through a filter circuit, comprising a resistance R<1> in series with inductances D, E, and shunt condensers Cl .. C<4>, to a tapped resistance R<2>, from which anode voltage for an indirectly-heated amplifier V is fed through a resistance R<3>. The anode voltage for the photoelectric cell P is taken from a tapped resistance R<4> in series with a resistance R<5>. The output from the amplifier is taken off at O.
Patent GB-1283298-A (GB)
Title: Process for recovering dimethylformamide
Inventor: MATSUZAWA HIDEO
IPC: C07C233/00
Filed: 1970-04-03
Abstract: 1283298 Dimethylformamide recovery MITSUBISHI RAYON CO Ltd 3 April 1970 [17 April 1969 31 May 1969] 16033/70 Heading C2C Dimethylformamide is recovered from a non- azeotropic mixture of formic acid and dimethyl formamide by adding dimethylamine, heating to a temperature of from 90 to 180 C. and distilling the heat-treated liquid. The starting mixture may be obtained as a bottom residue from the distillation recovery of DMF which has been used as a solvent. If the starting mixture also contains water and dimethylamine, the dimethylformamide may be continuously recovered by (i) dehydrating the. crude mixture by distillation so as to form a first mixture of water and dimethylamine and a second mixture of DMF and formic acid, (ii) separating said first mixture into water and dimethylamine by distillation, (iii) separating said second mixture into pure DMF and a non-azeotropic mixture of formic acid and DMF by distillation and treating this non-azeotropic mixture as described above and (iv) recycling the head treated liquid back to step (i).
Patent GB-933777-A (GB)
Title: Improvements in or relating to metal stretch bending apparatus
IPC: B21D11/02
Filed: 1960-05-06
Abstract: 933,777. Stretch bending. I. GREEN, and B. GREEN, [trading as CENTURY CO.]. May 6, 1960 [May 8, 1959], No. 16048/60. Class 83 (4). Apparatus for stretch forming metal strip includes two horizontally spaced dies to which the ends of the strip are clamped the dies being each simultaneously pivotable about two axes inclined relatively to one another whereby a stretch bending operation on the workpiece so clamped imparts curvature to the workpiece in more than one plane. A profiled metal band workpiece 200 is laid upon the outer ends of a pair of spaced dies 18, 20 when in the position shown in Fig. 2. The ends of the band 200 are then clamped to the dies 18, 20 by means 26, 28 which include jaws operated by hydraulic means 112 through toggles 120, an embossment 140 on the die and a recess 142 on the jaw cooperating to grip the end of the band firmly. A rod 52 is then moved forward by an hydraulic cylinder 44 so as, through links 65 and plates 94, to rock the dies 18, 20 about their pivots 68 until the ends of the dies come forward into closed alignment, Fig. 1, the band 200 thus being stretch formed on to the dies. The dies are moved apart against springs 90, during this pivoting by cams 30, 32, on die support plates 36, 34 attached to the plates 94, bearing on fixed followers 38, 40, the plates 34, 36 being carried by plates 22, 24 slidable along guides 16. The dies 18, 20 also pivot about horizontal pins 166 in the dies and on blocks 164 on the plates 36, 34. A vertical cam 168 on each plate 22, 24 engaging a follower 170 on each die 18, 20 so as to tilt the dies during the stretch forming operation.
Patent GB-1083816-A (GB)
Title: High frequency electron discharge device having improved r.f. coupling means
IPC: H01J25/24
Filed: 1965-04-14
Abstract: 1,083,816. High-frequency discharge tubes. VARIAN ASSOCIATES. April 14, 1965 [May 8, 1964], No. 16097/65. Heading H1D. A high-frequency electron discharge device, e.g. a reflex klystron, has a conductive body 7 surrounding an electron beam interaction structure and a wave coupling structure which comprises a wave-permeable dielectric block 15 vacuum-sealed to the defining walls of an aperture extending through the conductive body and forming a waveguide, the dielectric block extending over substantially the whole length of the waveguide. The block preferably has a thickness in the direction of wave propagation equal to n#/2, where n is an integer and X is the wavelength of waves propagated through the block. The wave coupling structure is applicable to conventional klystron amplifiers and oscillators, travelling wave tubes, magnetrons and cross field amplifiers.
Patent GB-1388185-A (GB)
Title: Exercising chair
IPC: A63B23/02
Filed: 1972-04-07
Abstract: 1388185 Exercising chair W L BIGGERSTAFF 7 April 1972 [8 April 1971] 16099/72 Heading A6M [Also in Division A4] An exercising chair comprises a base 12 (composed of legs 18, 20, 22, 24) a seat member 14 and a back rest 16, the seat and back being pivotally interconnected at 82 and the seat and back being respectively pivotally connected to the base 12 at 66 and 100, the arrangement being such that the seat member and the back rest can be moved relative to the frame between the position shown in Fig. 1 and that shown in Fig. 4. The pivot 66 is arranged to slide in slots 64 in the ends of legs 22, 27 and an elastic member 67 is arranged between the seat frame 14 and the base 12. The chair can be used in the upright position shown in Fig. 1 (in which the seat is held by the pivots 66 engaging detents (78) in slots 64 (Fig. 5) or, by pushing forward on the seat frame, in a reclining position shown in Fig. 3. In this latter position the chair can be used for exercising movements of the torso by pushing down on the back or seat frames against the action of the elastic means 67 (Fig. 4). A foot rest 104 slideable in and out of the seat frame may be provided. Arms 28 and 30 can also be provided and these are pivoted for movement at the connection of the back frame and the base and arranged so that they can be moved inwardly against the action of spring means so as to provide for the exercising of chest muscles and also pivotally in a vertical plane. The chair is also arranged to fold flat (Fig. 12, not shown) for storage and carrying.
Patent GB-425805-A (GB)
Title: An automatic electric switch responsive to changes in humidity
IPC: H01H35/42
Filed: 1934-05-30
Abstract: 425,805. Actuation of switches. BRITISH THERMOSTAT CO., Ltd., Windmill Road, Sunbury, Middlesex, and PAYNE, M., 50, Hook Road, Surbiton, Surrey. May 30, 1934, No. 16145. [Class 38 (v)] In a switch responsive to changes in humidity and comprising a length of parchment paper 34 or other sensitive material tied at one end to a support 42 and at the other to a spring- biassed switch operating member, the support 42 is held normally in the position shown by a relatively strong spring which is adapted to yield after closure of the contacts if the tension in the sensitive element becomes excessive, thereby preventing overstressing of it. In the form shown, the paper passes round a roller 35 and the strong spring 47 acts on a lever 43 carrying the support 42 and pivoted at 44. The degree of humidity at which the switch operates is determined by rotating a knob 50 over a dial, the knob rotating a cam 48 which forms a stop for the lever 43. Further adjustment is provided by a screw 46. The other end of the paper 34 is fixed to a flat side formed on a roller 37 and expansion or contraction of the paper causes the roller to rotate thereby rotating a shaft 38 carrying a contact arm 39 which moves between two fixed contacts 41 and carries armatures 54 which co-operate with magnets 53 to provide a quick action. The two contacts 41 may put into operation apparatus for increasing and decreasing respectively the moisture in the room. In a modification, Figs. 1 and 2, (not shown), there is only one fixed contact and the moving contact arm is fixed to a shaft which carries a two-armed lever, to the arms of which are respectively connected the sensitive element and a retractive spring.
Patent GB-800185-A (GB)
Title: Improvements in or relating to radio frequency heating
Inventor: POUND JOHN PICKMAN
IPC: H05B6/54
Filed: 1955-06-06
Abstract: 800,185. Dielectric heating. PYE, Ltd. June 6, 1956 [June 6, 1955], No. 16162/55. Class 39(3) An electrode for use in stray field radio frequency heating comprises a platen body 1 of insulating material which may include fused ground silica and synthetic resin, electrodes 2 being embedded in the body and staggered so that projecting portions on respective sides may be connected together for connection to one pole of a source of electrical energy. The electrodes lie flush with the surface 3 of the body 1 which is covered by a layer of fibre glass cloth 4 impregnated with the insulating material. In a modification, Fig. 2 (not shown), the electrodes are arranged obliquely of the insulating body. The surface of the body having the electrodes flush therewith may be curved and the electrodes may be square, triangular or I- section, and the back surface of the body may have a wood veneer secured to it. The electrodes may project from one side only of the body and terminate at or near the surface on the opposite side of the body.
Patent GB-1222557-A (GB)
Title: Expansion plug
Inventor: MORTENSEN LOUIS AACKERSBERG
IPC: F16B13/06
Filed: 1968-04-04
Abstract: 1,222,557. Wall plugs &c. L. A. MORTENSEN. 4 April, 1968 [5 April, 1967],No. 16169/68. Heading F2H. A wall plug of the type comprising a frustoconical nut 1 which is arranged within a slotted sleeve 6 and which is urged by a bolt to move axially of the sleeve 6 and thereby to urge sectors 7, 8 of the sleeve 6 radially outwards is provided with co-operating members on the nut 1 and sleeve 6 to prevent the latter becoming detached. As shown in Fig. 1, the nut 1 is provided with radial projections 4 which extend into slots 9 between the sectors 7, 8, the projections 4 being limited in movement relative to the sleeve 6 by edge portions adjacent to narrow slot portions 10. In an alternative embodiment (Fig. 6) the projections 14 of the nut extend into slots 12 provided in the sectors. The wall plug may be of plastics material and the nut may be provided with a hinged lid (18 or 22) (Figs. 10, 11, not shown) for covering one end of the threaded bore of the nut.
Patent GB-678927-A (GB)
Title: Improvements in or relating to the stabilizing of rubbery copolymers
IPC: C08K5/13
Filed: 1949-06-17
Abstract: Rubbery copolymers of conjugated dienes and vinyl aromatic compounds are stabilized by addition of 0.1 to 10 per cent of a cresylic acid alkylated by one or two alkyl groups of seven to twelve carbon atoms each and boiling above 100 DEG  C. at 10 mm. pressure (see Group IV (b)).  The cresylic acids, which may be obtained from petroleum or coal- or wood-tar distillates, are mixtures of cresols, xylenols, tri- and tetra-methyl phenols, ethylphenols and methylethylphenols. Alkylation may be effected with di- and tri-isobutylenes, tri- and tetrapropylenes, mixed heptenes, octenes, nonenes, decenes, or undecenes or by a Friedel-Crafts reaction using chlorides or bromides of heptane, octane, nonane or decane.  Copolymers specified are those of 1,3-butadiene, isoprene, 2-cyanobutadiene-1,3, pentadiene, cyclopentadiene, piperylene, dimethyl-butadiene-1,3, and 2-methylpentadiene-1,3 with styrene, nuclear-substituted styrenes, a -methylstyrene, mono-and di-chlorostyrenes, vinyl naphthalene, vinylbiphenyl, vinyl carbazole, 2-vinyl-5-ethyl- and 2-ethyl-5-vinyl-pyridines.  The stabilizers may be added to the copolymer latex which is coagulated, dried, compounded with coumaroneindene resin, petroleum wax, magnesium oxide, zinc oxide, carbon black, ultramarine blue, titanium dioxide, sulphur and an accelerator and cured.ALSO:Alkylated cresylic acids boiling above 100 DEG  C. at 10 mm pressure are made by introducing into each cresylic acid molecule one or two alkyl groups of seven to twelve carbon atoms each.  The cresylic acids may be obtained from petroleum or coal- or wood-tar distillates.  In examples (1) to petroleum cresylic acid (boiling range 195-228 DEG  C.) and boron trifluoride-ether complex, diisobutylene was added dropwise while stirring at 40 DEG  to 75 DEG C. After standing for 15 hours at 55-60 DEG  C. the mixture was washed with sodium carbonate solution, then with aqueous sodium hydroxide and finally with water.  The octylrceylic acid was diluted with ether, dried over anhydrous potassium carbonate and distilled from 140 DEG  C. at 10 mm. to 167 DEG  C. at 3.5 mm.; (2) mixed nonenes were used in place of diisobutylene and the washed product fractionally distilled.  The product (n25D=1.5145) was taken from 140 DEG  C. at 10 mm. to 205 DEG  C. at 3.5 mm.  The fraction up to 140 DEG  C. at 10 mm. was heated with anhydrous aluminium chloride at 100 DEG  to 110 DEG  C., washed and fractionated at 140 DEG  C. at 10 mm. to 220 DEG  C. at 2 mm. (n25D=1.5156).  The products are used as stabilizers for synthetic rubbers (see Group IV (a)).
Patent GB-110950-A (GB)
Title: Improvements in or relating to Sparking-plugs for Internal combustion Engines.
Inventor: LONGFORD HERBERT GEORGE
IPC: H01T13/16
Filed: 1916-11-13
Abstract: 110,950. Longford, H. G., Longford, W. W., and Clark, W. A., (trading as Sphinx Manufacturing Co.), and Morris, T. Sparking-plugs.-The plug casing is formed with apertures disposed either longitudinallv or in a lattice arrangement, this part of the casing being cvlindrical or spherical. Alternatively, the circulation of air within the plug may be promoted by securing cowliike projections to the open sides of the plug. The central electrode may be ribbed, or hollow with lateral openings communicating with the space around the insulator. Instead of the central electrode, the gland may be provided with a ribbed extension within the plug.
Patent GB-903469-A (GB)
Title: Improvements in or relating to aerials
IPC: H01Q1/20
Filed: 1960-05-09
Abstract: 903,469. Aerials. KOLBE, H., and KOEHLER, H., [trading as FUBA ANTENNENWERKE H. KOLBE & CO.]. May 9, 1960 [May 9, 1959], No. 16241/60. Class 40 (7). An aerial whose elements are arranged on a support tube and have freely suspended ends is characterized in that the two halves of at least one element have different characteristics of mechanical vibration. In the embodiment described, a boom 1 carries a folded dipole 2 and parasitic elements 3, 4. These elements are hollow, and one half of each element is filled with, for example, metal, wood, or sand. The difference in vibration characteristics may be produced by engaging the half elements with externally mounted means.