baber/WOPTO huggingface dataset:
Patent GB-624343-A (GB)
Title: Improvements in or relating to ultra-high-frequency communicating systems
IPC: H04B7/12
Filed: 1947-07-04
Abstract: 624,343. Duplex radio signalling; waveguides. SPERRY GYROSCOPE CO., Inc. July 4, 1947, No. 17712. Convention date, July 26, 1946. [Class 40 (v)] Each station of a communication system comprises a transmitter and receiver operating at different frequencies and using the same channel or channels, the transmitter, receiver and communication channel or channels being interconnected by a " bridge " which has four arms meeting at a common junction point and which is unbalanced so that a small fraction of the transmitter power is fed to the receiver as a heterodyning oscillation. The " bridge " as described comprises a wave-guide junction with four arms 10 ... 13, Fig. 1, the arm 10 forming a series or E-plane T with arms 11, 12 and the arm 13 forming a shunt or H-plane T therewith. In one embodiment, Fig. 3, station I comprises transmitter I operating .at frequency f1 and connected to bridge arm 10, and receiver I operating at frequency f2 and connected to arm 13. The common antenna I is connected to arm 12 and arm 11 is terminated at 21 by its characteristic impedance. The input impedance of the antenna is made slightly different from the characteristic impedance of arm 12 so that a small fraction of the transmitter energy is introduced into the receiver arm 13 to be fed with the received energy to the mixer of the receiver whose I.F. amplifier is tuned to the difference frequency. In this embodiment approximately half the transmitter energy is dissipated in the impedance 21 and half the received energy passes into branch 10. These losses are avoided in a modification, Fig. 4, in which the transmitter I and receiver I are connected to arms 11, 12 respectively and each of the arms 10, 13 are connected to common transmitting and receiving antennµ A, B, respectively. The input impedances of antennµ A, B are adjusted to be slightly different so that a fraction of the transmitter energy is fed through arm 12 to the receiver. The remainder is divided between the two antennµ. By suitable adjustment of a phase-shifter 22 in arm 10 or by arrangement of the physical location of the antennµ, energy received on the latter may be caused to produce reinforcement in receiver arm 12 and cancellation in transmitter arm 11. This arrangement affords a degree of diversity reception, signals being received over two distinct paths. The invention is stated to be adaptable to bridges of coaxial or two-wire line elements or combinations of these with each other and with wave-guides.
Patent GB-399618-A (GB)
Title: Improvements in or relating to electric fuse isolators
IPC: H01H9/10
Filed: 1932-06-23
Abstract: 399,618. Air-break switches. SWITCHGEAR & EQUIPMENT, Ltd., Banbury, Oxfordshire, and OXLEY, A. G. H., 48, Coleshill Wood, Washwood Heath, Birmingham. June 23, 1932, No. 17724. [Class 38 (v).] Springs, arrangement and disposition of.- Fuse-isolators of the " pull-down " type are provided with counterbalancing means for the fuse-carrying arms B such that a substantially complete counterbalance over the whole travel of the arms is obtained. The pair of arms B are mounted on a shaft C journalled in brackets D<1> on a girder D, and are operable to the isolated and fuse-replacement position (shown. in dotted lines) by means of a handle M and link L that is pivoted to a cam K fast on the shaft C. The girder D also carries a bracket F, between which and a collar H<1> on a rod H a helical compression spring G is coiled. The rod H carries a roller H<2> within a tube F<2>, and is connected by means of a chain J to the cam K, so that as the handle M is rotated to lower the arms B, the spring is placed under increasing compression, and the chain gradually wraps itself about the surface of the cam K, Fig. 4. The moment about C of the arms B follows a sine-law, whereas the restoring force of the spring G follows a linear-law, hence the surface of K is so chosen as to vary the length of chain J pulled out of the spring G and also the direction of application of the spring-force on K, so that the moments approximately balance for all positions of the arms B. The Specification refers also to the use of weights.
Patent GB-665509-A (GB)
Title: Improvements in electric heating jackets, more especially for vessels containing liquids
IPC: H05B3/34
Filed: 1949-07-05
Abstract: 665,509. Sewing. JONES, D. G. June 28, 1950 [July 5, 1949], No. 17727/49. Drawings to Specification. Class 112. [Also in Group XI] Special threads, use of.-A heating jacket for a liquid vessel includes a spun glass fabric, a heating wire, e.g. of nickel chromium spaced in lines over one surface of the fabric, a glass thread similarly distributed over the other surface, loops of the latter locking the wire in position. The process is effected by a sewing machine of the rotating hook type, with the glass thread serving as the needle thread.
Patent GB-165742-A (GB)
Title: Utilisation of a special vegetable substance, after suitable treatment as a primary material for basket work, or as a backing for facings and panels of plastic material
IPC: E04F13/04
Filed: 1921-06-29
Abstract: 165,742. LÚger, J. F., and LÚger, L. T. June, 29, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Wickerwork.-The pith of malacca cane, bamboo, rattan cane, ramie, and similar plants is freed from woody matter, split into cylindrical strips or threads, and woven to form basket-work or to form network backings which are coated with plastic material adapted to harden after application, to produce panels or facings.
Patent GB-434623-A (GB)
Title: Improvements in hair brushes
IPC: A46B15/00
Filed: 1934-06-15
Abstract: 434,623. Brushes. PRO-PHY-LAC-TIC BRUSH CO., Northampton, Massachusetts, U.S.A.-(Assignees of Dike, G. P. ; Brookline, Massachusetts, U.S.A.) June 15, 1934, No. 17816. Convention date, Sept. 22, 1933. Class 19] A hair brush has bristles B, arranged in groups of rows cross-wise of the stock with intervening spaces C into which the hair will naturally enter in brushing. Each group D of bristles is trimmed to a point as shown. The holes in the brush back may be formed at varying angles so that the grouping and spacing will be effective in separating the hair into strands.
Patent GB-749385-A (GB)
Title: Improvements in or relating to metal sheet feeding devices
Inventor: STUCHBERY ARTHUR LESLIE
IPC: B65G39/00
Filed: 1953-06-26
Abstract: 749,385. Feeding sheets; printing-machines. METAL BOX CO., Ltd. April 15, 1954 [June 26, 1953], No. 17838/53. Classes 100 (1) and 100 (2). [Also in Group XIII] A hollow magnetic roller for use as one of a pair of co-operating rollers for feeding ferrous metal sheets has one or more permanent magnets or electromagnets disposed therein in fixed relation to the bearings in which the roller is journalled to magnetize that part of the surface which is in juxtaposition to the other roller of the pair. As shown, the magnetic roller comprises the impression roller C in a sheetmetal printing or lacquering machine, the printing roller B having one or more gaps E in the periphery extending the full width of the roller, so that the sheets A are not gripped at certain intervals by the two co-operating rollers, but feeding is continuous since the sheets are attracted to the surface of the roller C. The roller C is hollow and provided with two iron rings 1 towards each end thereof, the rings being insulated from each other and the adjacent parts 3, 6 of the roller by brass or other non- magnetic rings 2. The rings are secured by bolts 5, 7 to the parts 6, 3, respectively, and the parts 3 are bolted to end-plates 4. The plates 4 and middle part 6 are journalled on bearings 8 on a fixed shaft 9, the left-hand end of which terminates within the corresponding end-plate, and the right-hand end of which is fixed by a screw 16 to a frame cap 15. Both end-plates 4 are formed with axles 12 journalled in the machine frame. A permanent horseshoe magnet 18 is carried by a bracket 17 arranged beneath each pair of iron rings 1 and secured to the shaft 9. Each magnet has arcuate iron shoes 19 arranged nearly in contact with the rings 1, and secured to the bracket 17 by screws 23. The magnets are arranged to face the roller B and in a line joining the axles of the two rollers. In a modification the permanent magnets are replaced by electromagnets. Such magnetic rollers may be used in an assembly of rollers for feeding metal sheets.
Patent GB-1304872-A (GB)
IPC: B29C45/64
Filed: 1970-04-15
Abstract: 1304872 Injection moulding machines SEARY MFG CO 15 April 1970 [7 May 1969] 17938/70 Heading B5A An injection mould 36, 38 is closed by means of an electromagnetic winding embedded in one of two mould-carrying platens 26, 48, means being provided for biasing the platens to their open position. As shown, the platen 26 is fixed and carries four windings (74, 76, 78, 80) Fig. 2 (not shown), located in annular recesses therein. The platen 48 is biased to open position by a short throw stiff spring 84 and a longer throw lighter spring 86. The windings can be energized in the reverse direction to eliminate residual magnetism, a current limiting resistor being provided to prevent re-attraction by reverse energization. The moulding material is fed through a cylindrical member 20 (Fig. 6) having passages 122, 124, 126, 128 leading to a nozzle 22. The nozzle is closable by the needle end 140 of a valve stem 134 carried by a pushrod 132. The push-rod is operated by an electromagnet VM which is energized to close the valve 140, opening being effected by the pressure of injected material on a shoulder 142 of the valve stem 134. The apparatus may be used for making plastics slide mounts. If the mould separation is much greater than ¢ inch, mechanical means (not shown) must be provided ta move the mould the additional amount. The operation of the mould closing means and the injection means including the valve 140 is controlled by an automatic control circuit (Fig. 4, not shown).
Patent GB-663428-A (GB)
Title: Hollow plastic structural units and method of making the same
IPC: E04C2/16
Filed: 1949-07-07
Abstract: 663,428. Paper &c. tubes. GONDA, D. July 7, 1949 [July 7, 1948], No. 17995/49. Class 99 (ii) [Also in Groups V and VIII] Laminated tubes used in the production of hollow structural panels of a kind such as is described in Specification 546,089, [Group VIII ], are formed from helically wound strips of fibrous material e.g., paper, wood, veneer, fabric, impregnated with thermo-setting plastic material. Strips 11-15 may be wound with close butt joints to form continuously a multi-ply tube 16 which is advanced by a looped belt 17 using apparatus which may be of the form described in Specification 657,298. In order to ensure that the joints of successive superposed strips of each tube are spaced apart axially of the tube thus preventing superposition of joint crevices the strips are made successively wider to compensate for the effect of the increasing diameter of each winding relative to the adjacent inner one, the pitch of the joints being the same for all the layers. The resin with which the strips are impregnated is not in adhesive condition during the winding and an adhesive e.g., Scotch glue, which may comprise aqueous formaldehyde solution, or a watersoluble phenol or melamine formaldehyde resin which will not subsequently interfere with flow and curing of the resin is applied as bands 22 and 23, 24, on the strips 11 and 15 to secure the windings in position. Each tube is deformed by passage through rollers 25, 26, 27, 28 to have walls 16a - 16d which are initially bulged inwardly but afterwards spring out to form a tube of quadrilateral cross-section.
Patent GB-278817-A (GB)
Title: Improvements in paper making methods and machines
IPC: D21G9/00
Filed: 1926-07-20
Abstract: 278,817. Millspaugh, W. H. July 20, 1926. Cylinder paper machines; compound paper ; reinforced paper. - A suction roll 1 surrounded by a wire cloth 3 and having a vacuum chamber 5, takes pulp from a vat 2. A supplemental vacuum chamber 15 draws large volumes of air through the sheet which is then passed under a roll 16 round which a felt 18 passes. A suction box 16b transfers the sheet from the wire cloth to the felt and a suction box 16<a> withdraws more water as the sheet passes. under a roll 21 on its way to a second press or to the dryers. A reciprocating rod in the vat 2, and having spaced blades, promotes a criss-cross disposition of the fibres. The sides of the vat are adjustable to the width of the sheet to be made and the lengths of the vacuum chambers 5, 15 are corresponding- ly adjustable. Deckles 8, Fig. 10, fitting in the sides 7 of the vat 2b may be used.The suction roll may have a closely perforated metal shell the perforations of which are countersunk as shown in Fig. 4. Multi-ply paper may be made, and the interior layers may be of different pulp from the outer layers. Reinforcing material such as wire netting may be introduced between the plies, and adhesive and cementitious substances such as asphaltic compositions or rubber latex may be applied to one or more sheets. Specification 7042/10 is referred to.
Patent GB-1455030-A (GB)
Title: Regeneration of support nickel catalysts
IPC: C07C5/08
Filed: 1974-04-25
Abstract: 1455030 Catalyst regeneration BRITISH PETROLEUM CO Ltd 9 April 1975 [25 April 1974] 18121/74 Heading B1E [Also in Division C5] A supported nickel catalyst, e.g. partially sulphided elemental nickel on alumina, silica or sepiolite, which has been deactivated by use for the selective hydrogenation of di-olefins and/or acetylenes in the presence of mono-olefins is regenerated by (i) purging the catalyst of volatile hydrocarbons with an inert gas at 120- 350‹C, (ii) burning off hydrocarbonaceous deposits with an oxygen/inert gas mixture at 350- 450‹C, (iii) initiating the reduction of the resuiting oxidised catalyst with a hydrogen/inert gas mixture at 350-450‹C, and (iv) completing the reduction with hydrogen at 350-450‹C. The inert gas may be steam or nitrogen. The specified regeneration steps may be preceded by washing the catalyst with a hydrocarbon e.g. aromatic, naphthanic or paraffinic, liquid to reduce the hydrocarbonaceous deposits. The burn-off may be conducted in two or more stages at increasing temperatures and may be followed by an inert gas purge.
Patent GB-1434320-A (GB)
Title: Process for formylating organic basic nitrogen compounds
IPC: C07C233/05
Filed: 1974-04-25
Abstract: 1434320 Formylation of organic nitrogen compounds DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 25 April 1974 [14 July 1973] 18136/74 Heading C2C A process for the formylation of an organic basic nitrogen compound comprises formylating the nitrogen compound in the form of a salt, in the presence of acetic anhydride, with an alkali metal formate or ammonium formate in an organic solvent which is substantially immiscible with water. The nitrogen compound and formate are preferably used in stoichiometric amounts, with from 1 to 4 mols. of anhydride per mole of nitrogen compound, at a temperature of from 20 to 60 C. using an aliphatic, halogenated aliphatic or aromatic hydrocarbon, ether or mixture thereof as the solvent.
Patent GB-244409-A (GB)
Title: Switch for the lighting circuit of film projecting apparatus
IPC: G03B21/16
Filed: 1925-07-16
Abstract: 244,409. Universum-Film-Akt.-Ges. Dec. 12, 1924, [Convention date]. Optical-projection apparatus. - The lighting circuit of film-projecting apparatus in which a cooling stream of air under pressure is supplied to the film as it passes the aperture is provided with a switch device which is locked both in the " off " and " on " positions of the lamp circuit. The switch is locked in the " off " position until the cooling-air releases it to allow it to be moved into the on " position, and when the stream of air ceases the switch is returned automatically by a spring into the " off " position. The contact blades 6, 7 are carried by a yoke-shaped member 5, on the pin 3 of which is mounted the member 2 carrying the switch lever 1. An arm 8 of the member 2 engages in a. slot 9 formed by two frame bars 10, 11. Bolts 14, 15 are slidably mounted in the ends of these bars and rigidly connect together bars 12, 13. A rod 28 is attached to the end of the bar 12 and to the piston 30 moving in a cylinder 29 with an inlet 31 and an outlet 32 for the compressed air. A spring 20 on a guide pin 19 maintains the frame 12, 13 and the piston 30 in the position shown when the compressed air is not admitted to the cylinder. In this position, the switch member 2 is locked in the " off " position by a pin 24 on the arm 13 engaging a hole in the arm 8. When the pump is operated and compressed air is admitted to the cylinder 29, to move the piston and its attached frame 12, 13 to the right of the position shown, the pin 24 is removed from the bar 8 and a pin 23 on the bar 12 engages in an aperture in the frame 10, 11. The switch lever can be thrown over into the " on " position against the. action of a spring 27. During this movement the limb 8 of the member 2 strikes against the bevelled end of the pin 23, which snaps into the aperture in the limb and locks the switch in this position. Pins 21, 22 are provided on the bar 12 to serve as adjustable stops, As soon as the pressure drops of the air supplied to the piston, the frame 12, 13 and piston are moved back by the spring 20 into the position shown, the pin 23 is withdrawn from its locking position, and the member 2 is moved by the spring 27 from circuit closing position into the " off " position. In this return movement, the limb 8 and pin 24 engage by a shap action to lock the switch, as shown.
Patent GB-182726-A (GB)
Abstract: 182,726. Ascarelli, E. Sept. 27, 1921. Indicators actuated by floats.-In a liquid-level indicator especially applicable for use in motorvehicles, a float 4 guided on a fixed rod 14 is connected by a link 5, a pivoted lever 6, an arm 8 rigid with the lever 6, and a flexible wire 9 to a spring-controlled gauge. The wire 9 is adjustably connected by a block 11 in a slot 10 to the arm 8 and in a similar manner to the pivoted, toothed sector 21 which engages with a pinion keyed on the pivot of the pointer 22. A spring 23 ensures tension in the wire.
Patent GB-450051-A (GB)
Title: Process for the production of n-substituted amides of the pyridine carboxylic acids
Filed: 1935-06-26
Abstract: N-Substituted pyridine carboxylic acid amides are prepared by treating pyridine carboxylic acid amides with secondary amines in the presence of phosphorus pentoxide and, if desired, of a solvent or diluent, e.g. toluene or sand.  Examples describe the interaction of nicotinic acid with diethylamine, di-n-propylamine and methylaniline, and of picolinic acid with diethylamine. Specifications 13237/13, 5444/15, 184,625, [all in Class 2 (iii)], and 375,883 are referred to.  The Specification as open to inspection under Sect. 91 also refers to the use of cyclic amines.  This subject-matter does not appear in the Specification as accepted.
Patent GB-590456-A (GB)
Title: Catalytic conversion system
IPC: B01J8/26
Filed: 1942-12-23
Abstract: <PICT:0590456/III/1> A method of treating gases with powdered solids particularly applicable to the catalytic conversion of hydrocarbons consists in passing the gases upwardly through the treating zone at such a rate that a dense turbulent phase of catalyst is maintained with a light dispersed phase above it, and withdrawing catalyst directly from the dense phase into a zone of restricted cross section of height sufficient to develop a fluistatic pressure to circulate the powder through the circuit.  For example in a cracking process the vaporized feed stock is introduced by pipe 17 into reaction zone 18 after admixture with powdered catalyst from regenerator 71.  The dense phase catalyst overflows into the outer separating chamber 63 and standpipe 62, from which it is fed to a stream of oxidizing gas and fed to the regenerator 71 which is of construction similar to the reaction chamber.  Catalyst which is carried by the reaction products into a light dispersed phase is separated in a series of cyclones 26, 29, 32 and discharged into the dense phase.  The dense phase catalyst leaving the regenerator may be partly recycled to it through cooler 69.  In other modifications catalyst may be withdrawn from the bottom of the dense phase in converter or regenerator or both, into the standpipes, and the converter or regenerator may be arranged at different heights to provide differences in working pressure.
Patent GB-1112230-A (GB)
Title: Bis[ª¤-(carbo-2-ethylhexoxy)-benzoyl]peroxide
IPC: C07C51/487
Filed: 1967-04-20
Abstract: Bis - [o - (carbo - 2 - ethylhexoxy) - benzoyl] peroxide is used as an initiator for polymerizing vinyl monomers.  In Examples (2) an unsaturated polyester was hardened using a mixture of the above peroxide diethyl aniline (as accelerator) and dibutyl phthalate, (5) styrene, methyl methacrylate and vinyl acetate were each bulk polymerized using the above peroxide.ALSO:The invention comprises the title compound, and a process for making it by reacting a solution of an o-(carbo-2-ethylhexoxy)benzoyl halide with an alkaline aq.H2O2 solution.
Patent GB-237275-A (GB)
Title: Improvements in and relating to automatic arc welding systems and apparatus therefor
IPC: B23K9/12
Filed: 1925-07-17
Abstract: 237,275. British Thomson-Houston Co., Ltd., (Assignees of Clarkson, W. B.). July 21, 1924, [Convention date]. Heating by electricity.-In an arc-welding system having a plurality of arcs and a single travel mechanism for producing relative movement between the arcs and the work, the travel mechanism is controlled by means responsive to the condition of the arc so as to be operated only when all the arcs are burning. The system shown employs a pair of continuous electrodes 1 fed through rollers 6 by motors 7, the work 3 being carried by a support 5 operated through gearing by a motor 4. If desired the work may be fixed, the motor 4 being geared to operate the welding heads. To start the welding operation, the switches 16 are closed with consequent operation of the switches 5<r>, 1<r>, to close the circuits through the armatures and the fields 7<1> of the motors 7 so that the latter feed the electrodes to the work. When the electrodes touch the work the switches 2r are operated with consequent reversal of the armature currents, and the motors 7 reverse to withdraw the electrodes. When the arc reaches the desired length the welding current is sufficient to operate the switches 3r and the current in the armatures is again reversed and the motors 7 reverse to feed the electrodes and maintain an arc of constant length. Relays 4r are fitted to keep the circuits of the fields 7' closed while the motors are rotating as described in Specification 226,570. The current supply to the traverse motor 4 is under the control of switches 6r which are only closed when switches 3<r> are closed. Interruption of either of the arcs will cause the corresponding switches 3r, 6r to open with consequent stoppage of the traverse motor. If the interrupted arc is not restruck within a predetermined period of time, the retarded relay 7<r> will open the contact 7a thus breaking the circuit to the operating coil of the switch 1<r> which will consequently break the welding circuit. The relay 7<r> may be constructed so that it will break and make the circuit a predetermined number of times after which it will keep the circuit open. A switch 18 is fitted so that the system can be utilized by closing this switch when it is desired to weld with one arc only.