baber/WOPTO huggingface dataset:
Patent GB-678671-A (GB)
Title: Improvements in or relating to circuit-arrangements comprising a frequency-modulatedoscillator with automatic frequency correction
IPC: H03L7/02
Filed: 1951-04-06
Abstract: 678,671. Automatic frequency control systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 6, 1951 [April 11, 1950], No. 8027/51. Class 38 (iv). A frequency modulated oscillator 1 has its central frequency stabilized by an A.F.C. circuit comprising a frequency drift correcting element, e.g. ferro-magnetic core 10 and a temperature dependent resistor 12 whose resistance varies with the ambient temperature adjacent the oscillator so that the oscillator frequency is maintained within the catching range of the frequency control with temperature changes. The oscillator is modulated by a reactance valve 3 and its output passes through a frequency multiplier 5 and is compared in frequency in a mixer 7 with that of a stable oscillator 6. The low frequency difference frequency output of the mixer 7 passes to a frequency discriminator 8 and amplifier 9, the output current or voltage of which controls the frequency correcting ferro-magnetic core and varies about a mean value unaffected by the frequency drift of the oscillator but varying with the ambient temperature owing to the resistor 12.
Patent GB-507958-A (GB)
Title: Improved means for fastening and carrying cardboard boxes
IPC: B65D5/465
Filed: 1938-03-16
Abstract: 507,958. Boxes. FILMER, Ltd., R. H., and FILMER, J. W. March 16, 1938, No. 8069. [Class 18] A handle for a cardboard box of the type shown in Fig. 2 is formed from a blank shown in Fig. 6. In making up the latter, flaps 19 are folded about creases 20, the blank is doubled about crease 14 with the triangular portions 17 folded inwardly, flaps 23 are folded outwardly about creases 24, and flap 25 is doubled back to underlie both flaps 23. During the folding about crease 14, flaps 27 move over the opposite flap 23, one of the tongues 210 enters the aperture 21 previously occupied by the opposite tongue, and the latter slides under the opposite flap 23. After stitching, the handle is inserted from inside the box through coincident slots in the flanges 8, 9 of the -cover and body of the box respectively until the flaps 23, 25, 27 abut against the inner face of flange 9 in which position tongues projecting from opposite edges of the two slots enter the apertures 21. The handle may be stitched to the box.
Patent GB-1146269-A (GB)
Title: Cargo transporting apparatus
Inventor: WELLMAN ROY LEE
IPC: B60P1/00
Filed: 1968-02-20
Abstract: 1,146,269. Extendable platform on a vehicle. FEDERATED DEPARTMENT STORES Inc. 20 Feb., 1968, No. 8201/68. Heading B8E. A truck or trailer 10 has openings 13 provided with rolling doors 15 to provide access to transport racks 20, having wheels 30 which are moved in channels 28 to introduce the racks as units into the truck, and which are secured in loaded position by locking pins passing through the base of the racks into sockets in the channels 28. Ramps or platforms 25 slide from stowed positions between the racks and the truck floor 32, guided in members 45, to an extended position supported by the channels 28 and by brackets 29 in which they provide a standing position to enable the upper shelves of the racks to be unloaded.
Patent GB-478097-A (GB)
Title: Improvements in or relating to air insulated electric cables
IPC: H01B11/18
Filed: 1937-03-19
Abstract: 478,097. Cables. SIEMENS & HALSKE AKT.-GES. March 19, 1937, No. 8212. Convention date, March 23, 1936. [Class 36] In an air-space insulated conductor having two or more radially superposed air insulations separated by an insulating sleeve or sleeves, the air insulation immediately adjacent the conductor is constituted by thin cords wound in layers directly over one another in open and opposite helices, or by a single spacing member which makes contact with the conductor only at a series of points or small areas. In the construction shown in Fig. 1, a conductor 10 is wound with an insulating cord 11, over which is wound in a direction opposite to the cord 11 a number of insulating cords 12. The cords 12 are surrounded by an insulating sleeve 13 over which is applied a helical spacer 14 and a further insulating sleeve 15. A return conductor 16 formed of metal strips bound by a winding 17 and which is surrounded by an insulating sleeve 18 and a watertight jacket 19 completes the cable. Fig. 2 shows a modified construction in which the conductor 20 is spaced from the innermost insulating sleeve 22 by a helically wound insulating cord 21 which is itself of helical form. A tension and compression resisting core may be arranged within the helical cord 21.
Patent GB-1030104-A (GB)
Title: Improvements in or relating to maximum safe load indicators for cranes
Inventor: BOUGHTON JOHN HENRY
IPC: B66C23/90
Filed: 1964-03-03
Abstract: 1,030,104. Safe load indicators for jib-cranes. T. T. BOUGHTON & SONS Ltd. Feb. 25, 1965 [March 3, 1964], No. 8253/65. Heading B8B. When the overturning moment in a mobile crane with a side-mounted jib 8 reaches a predetermined figure, the body B of the crane tends to pivot on the chassis A about a joint between flanges 11, 13. The body B is attached to the chassis at the side opposite to the jib by bolts 15 and the pivoting movement is resisted by resilient washers 27, 28, Fig. 5 (not shown), which have annular recesses 29, 30 in their opposed faces. Angular movement of the body B operates one or more micro-switches thereby actuating a warning signal or signals and/or arresting the hoist motor. The warning system may be pneumatically or hydraulically operated.
Patent GB-954522-A (GB)
Title: Improvements in or relating to rivet feed machines
IPC: B21J15/34
Filed: 1962-03-02
Abstract: 954,522. Riveting. C. E. BREWER. Feb. 21, 1963 [March 2, 1962], No. 8254/62. Heading B3U. A machine for feeding blind rivets comprises a rivet guiding member containing a slot to receive rivet shanks and a reciprocable rivet aligning member so disposed in relation to the guiding member that rivets supplied thereto will pass to the slot in the rivet guiding member. Rivets placed on a tray 1 are passed by a rotating regulating cylinder 2 to an inclined shoot 11 and three convergent shoots 12 to a rivet aligning member 13 which has in its upper surface three troughs 14 of triangular crosssection. In each trough 14 is a slot 15 which extends through the depth of the member and is slightly greater in width than the diameter of the rivet mandrel. Such slot is enlarged at intervals by holes 16 which are slightly larger in diameter than the rivet head. Below the member 13 is a rivet guiding member 20 which has three shallow grooves in its surface, one under each of the slots 15. A slot 22 extends through the depth of the guiding member 20 and has a width slightly greater than the diameter of the rivet mandrels. An enlarged part 23 of each slot enables mandrels which have become disengaged from their rivets to fall clear. The rivet aligning member 13 is reciprocated by a connecting rod 19 eccentrically mounted on a gear-wheel 8 which also drives the regulating cylinder 2 through a ratchet device 4, 5. The slots 22 converge into a single slot 27 which leads to a rivet magazine 28 comprising a rotatable cylinder 29 having a plurality of slots in its surface adapted to receive the mandrels of rivets. Specification 903,500 is referred to.
Patent GB-292695-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65G17/32
Filed: 1927-03-26
Abstract: 292,695. Charles, A. D., and Murray, R. T. March 26, 1927. Blanks, transferring. - An endless chain conveyer a or transporting small articles such as fish hooks, needles, pins, &c. under various tools during manufacture, is provided with a series of jaw members f, g which are closed automat fically on the articles at position 1 by a cam surface or track m arranged parallel to and below the chain anc. adapted to be moved relatively to it. The driving driving drum c is driven by pawl and ratchet mechanism actuated by a cam d and moves the chain step-by-step through distances equal to the length of a link so that the articles are momentarily held stationary under the successive tools. The track m is provided at one end with a roller p which is engaged by a cam q so timed that the track is moved to the left as each open jaw approaches the position 1 and is maintained in that position sufficiently long for the depending part h of the pivoted jaw g to move one step along the track so that the jaw is riaintained closed when the track is returned to its initial position by a spring &c. Each part h carries a resilient arm having a wiping block which bears on the track. The resilient arms allow for slight variations in the thickness of the articles held in the jaws. Variations in thickness can also be allowed for bv altering the distance between the track and chain. Pairs of similar jaws may be mounted on each side of the chain so that articles may be fed simultaneously through two sets of tools.
Patent GB-554182-A (GB)
Title: Furnace charge distribution
IPC: F27B1/20
Filed: 1942-06-18
Abstract: 554,182. Charging shaft furnaces. ST. JOSEPH LEAD CO. June 18, 1942, No. 8381. Convention date, Feb. 20. [Class 51 (ii)] In an electric shaft furnace for smelting ores, the charge of ore and fuel is fed into the shaft so that the larger particles of ore and fuel occupy an annular zone within the shaft spaced from the wall thereof. The charge is preheated in a drum 8 and fed through a passage 10 into a rotary rectangular hopper 11 provided with a hinged baffle plate 23 to direct the charge alternately to one side or the other of the hopper so that it is fed through either the outlet 25 towards the centre of the furnace or through the outlet 24 to the periphery. The coarse particles of the charge segregate in an annular zone c the shape of which may be varied by the periods for which the ore is fed through the outlets 24, 25. The hopper is provided with sealing means at 19, 20.
Patent GB-895436-A (GB)
Title: A process for the preparation of 10-hydroxydec-2-enoic acid
Inventor: ROBINSON ROBERT
IPC: C07C59/42
Filed: 1960-03-10
Abstract: The invention comprises cis-10-hydroxydec-2-enoic acid and the preparation of 10-hydroxydec-2-enoic acid (both cis and trans) by catalytic or non-catalytic partial hydrogenation of 10-hydroxdec-2-ynoic acid.  The process may be combined with one wherein the 10-hydroxydec-2-ynoic acid is prepared by reacting an ether or acyl derivative of 7-chloro or 7-bromoheptanol with an alkali metal iodide whereupon the resulting iodide or if desired the bromide is reacted with sodium acetylide, the resulting acetylide is treated successively with diethylmagnesium and solid carbon dioxide and the ether or acyl derivative of 10-hydroxydec-2-ynoic acid is hydrolysed.  The ether or acyl group may be hydrolysed at any stage after the reaction with sodium acetylide and the carboxylic acid intermediates may be in the form of esters, salts or glucosides from which the desired 10-hydroxydec-2-enoic acid may be obtained by chemical or enzymatic action.  Reduction by catalytic hydrogenation in the presence of Lindlars catalyst gives the cis-isomer whilst reduction with an alkali metal in liquid ammonia gives the trans-isomer.  The tetrahydropyranyl ether is preferred in the preparation of the starting material.  7 - Chloro - 1 - 21 - tetrahydropyranyloxy - heptane is prepared from 7-chloroheptanol and 2,3-dihydropyran.  Dioxane is purified by drying followed by treatment with ethylmagnesium bromide before distillation. Pharmaceutical compositions comprise cis-10-hydroxydec-2-enoic acid or an ester, salt or glucoside thereof, and a non-toxic diluent.
Patent GB-567915-A (GB)
Title: Improvements in slide rules and other calculators
IPC: G06G1/04
Filed: 1943-06-01
Abstract: 567,915. Circular slide-rules. MAcLEAN, J. D. June 1, 1943, Nos. 8713 and 11112. [Class 106 (i)] A calculator or sliderule of circular form comprises superposed coaxial relatively rotatable discs of which the upper is transparent and is marked on the lower side with two of the usual scales, e.g. the B and C scales, while the lower disc is opaque and is marked with the other scales (the A and D scales) in positions to cooperate with the scales on the transparent disc. An intermediate transparent disc or arm carrying a cunsor line may be provided. The slide rule may be duplicated by providing a third disc with B and C scales co-operating with A and D scales on the back of the lower disc, the scales being marked for calculations in sines and cosines. The slide rule may be mounted in a watch type of case, with one of the discs and the cursor rotatable by winding stems.
Patent GB-401568-A (GB)
Title: Improvements in or relating to electrodes for electron discharge devices
IPC: H01J19/30
Filed: 1933-03-23
Abstract: 401,568. Discharge apparatus. IGRANIC ELECTRIC CO., Ltd., 147, Queen Victoria Street, London.-(Assignees of Giard, E. A. ; 12th Street, Milwaukee, Wisconsin, U.S.A.) March 23, 1933, No. 8772. Convention date, March 26, 1932. Drawings to Specification. [Class 39 (i).] The surface of a control electrode is composed of beryllium oxide. A control electrode consisting of an imperforate metal sheet surrounding the filament and having apertures in the end facing the anode is made of an alloy of nickel and beryllium containing approximately 2 per cent beryllium. The surface is oxidized by heating in air and is again heated by a high-frequency field during exhaustion of the tube to evaporate the nickel oxide. In a modification the beryllium oxide may be produced by deposition and subsequent oxidation of beryllium on a nickel surface. Specification 382,605 is referred to. The Specification as open to inspection under Sect. 91 comprises also the application of the surface covering to any electrode, particularly one from which it is desired to prevent secondary emission. This subject-matter does not appear in the Specification as accepted.
Patent GB-283023-A (GB)
Title: Improvements in or relating to wall coverings
IPC: B27D1/00
Filed: 1927-03-30
Abstract: 283,023. Br³ning & Sohn Akt.-Ges., J. Feb. 25, 1927, [Convention date]. Veneers and veneer-like sheets.-Wall coverings are formed by glueing plywood veneer having the thickness of paper to a backing of paper or other material which will permit the covering to be rolled up either longitudinally or transversely. The covering so formed may be printed on the face or be embossed on one or both faces and may be thickly coated on the back with glue or paste which is subsequently moistened with water or formaldehyde solution for fixing the covering to a wall.
Patent GB-694438-A (GB)
Title: Improvements relating to television transmitting and like apparatus
Inventor: JAMES IVANHOE JOHN PENFOUND
IPC: H03F1/50
Filed: 1950-04-11
Abstract: 694,438. Television. ELECTRIC & MUSICAL INDUSTRIES, Ltd. April 6, 1951 [April 11, 1950], No. 8806/50. Class 40 (iii). [Also in Group XL (c)] The output electrode of a television signalgenerating tube is coupled to the input electrode of the first amplifier valve through an inductance whereby the output capacity of the tube is separated from the input capacity of the amplifier so as to increase the signal-to-noise ratio at the higher frequencies, a frequencydependent network being included in the amplifier to smooth the upper frequency response which would otherwise be peaked due to the inductance resonating with the capacities. In Fig. 1, the output electrode 2 of tube 1 is connected to the grid of the first amplifier 4 through inductance 5 which isolates capacities 6 and 7 and the resulting resonance is compensated by dengenerative feed-back introduced into the cathode of valve 11 by a rejector network 19-22 having the same resonant frequency. The normal CR response of the input circuit is compensated by a main CR network 24-26 introducing degenerative feed-back into the cathode of valve 12 and an auxiliary network 30-33 in the cathode of valve 13. The anode coupling circuits are conventional. The output is taken from valve 14 connected as a cathode follower. Network 19-22 may alternatively be provided in other parts of the amplifier, for example in the cathode circuit of valve 12. The Miller capacity associated with valve 4 may be reduced by feed-back from the anode of valve 11 to the grid of valve 4. Alternatively the first valve may be a cathode follower. In a further embodiment, Fig. 5 (not shown), the Miller capacity of the first valve is reduced by arranging the stage to work into the cathode impedance of a valve (Cascode amplifier). The remainder of the amplifier is as described in Specification 630,132, [Group XL (c)], rejector network is introduced into the cathode circuit of one stage as in Fig. 1 to compensate for the input circuit resonance. With this embodiment it is possible to mount the first valve close to the pick-up tube possibly within the focus coil. A screen cable then extends from the anode to the cathode of the load stage, the impedance of the latter being so low that it is not affected by the cable capacity. The cathode impedance may match the cable impedance. Fig. 6 (not shown) illustrates a four terminal network which may replace the rejector networks in the embodiments described. The network may be connected in the cathode circuit of one of the amplifiers, Fig. 7 (not shown), or may be included in an interstage coupling, Fig. 8 (not shown). Further modifications of these networks are referred to.
Patent GB-109239-A (GB)
Title: Improvements in Vapourizing and Ignition Means for Internal Combustion Engines Employing Liquid Fuel.
IPC: F02B3/00
Filed: 1916-09-07
Abstract: 109,239. Tangyes, Ltd., and Robson, J. Sept. 7, 1916. Cylinders receiving liquid fuel.-A device for igniting and vaporizing in engines employing liquid fuel injected into compressed air in the combustion chamber consists of a rod, plug, or the like 1 which is heated to a temperature sufficient to cause ignition and passed into the combustion chamber 2 in proximity to the sprayer. The rod is carried by a cover 3 and may be adjustable longitudinally by means of the threaded stem 1<a>, or may be mounted eccentrically on its stem and adjusted by rotation of the stem. The device may be used for starting or for assisting vaporizing and ignition during working.
Patent GB-551316-A (GB)
Title: Improvements in power transmission systems for mechanically-propelled tipping trucks
IPC: B60K17/16
Filed: 1941-07-14
Abstract: 551,316. Motor-vehicle reversing-gear. BOYDELL & CO., Ltd., E., COLDWELL, J. D., and SKINNER, J. K. July 14, 1941, No. 8860. [Class 79 (ii)] [Also in Group XXIV] A mechanically-propelled tipping truck is provided with a supplementary reversing bevel gear between the engine and the ordinary change-speed gear box. In the construction shown in Fig. 2 the reversing gear comprises a planet carrier 31 and planet pinions 32 gearing with sun pinions 25, 30 slidably keyed on the respective driving and driven shafts 23, 27. The reversing gear slides as a unit on the shafts and for a direct drive is moved to the right by a fork 36 so that clutch teeth 35 on the planet carrier engage a toothed member 26 on the shaft 23 and lock the gearing for rotation as a solid body; for a reverse drive the planet carrier is moved to the left so that clutch teeth 37 thereon engage teeth 29 on the gear box housing 28, the planet carrier being then locked to the housing 28 and the shaft 27 driven in the reverse direction to the shaft 23. In a modification the planet carrier rotates in bearings in an extension of the clutch housing and does not slide, reversing being effected by a clutch ring which slides on an extension of the planet carrier and is adapted to lock the latter either to the driving shaft or to the fixed housing.
Patent GB-287581-A (GB)
Title: Improvements in or relating to high-pressure motor power plant
IPC: F01K7/22
Filed: 1928-03-24
Abstract: 287,581. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). March 25, 1927. [Convention date]. Drawings to Specification. Motor power plant. - High-pressure boilers supply steam to high-pressure engines situated in the boiler house and having intermediate superheating. The steam passes thence into a pipe line supplying one or more low-pressure turbines. The high-pressure engines may be used for thepower requirement of the boiler house and may be coupled to electrical machines suitable for action either as generators or as motors. The low-pressure engines may have the usual speed governors and the high-pressure engines be governed to produce a constant back-pressure.
Patent GB-993456-A (GB)
Title: Pregnenes
IPC: C07J7/00
Filed: 1964-03-03
Abstract: The invention comprises a compound of the formula: <FORM:0993456/C2/1> wherein R, R1 and R2 are hydrogen or lower alkyl containing from 1-6 carbon atoms, R3 is hydrogen, lower alkyl containing from 1-6 carbon atoms or halogen, R4 is alkanoyloxy; R5 is hydrogen or fluorine; R6 is lower alkyl containing from 1-6 carbon atoms, and n is 0 or 1, and a process for the preparation thereof by reacting a steroid of the formula: <FORM:0993456/C2/2> with a glycol of the formula: <FORM:0993456/C2/3> in the presence of a strong acid. Pharmaceutical compositions containing the above compounds alone are progestationally active, and combined with an estrogenic agent inhibit conception.  They may be administered orally.
Patent GB-820950-A (GB)
Title: New disazo-dyestuffs of the stilbene series, complex metal compounds thereof and process for making them
IPC: C09B43/12
Filed: 1956-03-22
Abstract: The invention comprises dyes of formula <FORM:0820950/IV(c)/1> where R is a benzene residue free from sulphonic and carboxylic acid groups and X is OC-CH= CH-CO or, advantageously, CO, and their nickel and copper complexes.  They are made by coupling, advantageously in an alkaline medium, appropriate pyrazolones with diazo compounds of the required 4-acylamino-2-aminophenols, or by linking 2 mols. of appropriate monoazo dyes or metal complexes thereof by means of phosgene or a fumaric acid dihalide, with subsequent metallization, if desired.  Preferably ammine complexes in aqueous media are used as metal-yielding agents.  Substituents such as alkyl, alkoxy, hydroxyalkyl and sulphonamide groups may be present in R.  The metal-free dyes dye animal fibres, e.g. wool, silk and leather and especially cellulosic material such as cotton, linen, artificial silk and regenerated cellulose. Advantageously the dyeings are treated on the fibre, or partly on the fibre and partly in the bath, with the metal-yielding agents. Precipitation of the sparingly soluble metal complexes may be prevented in a neutral or alkaline dye-bath by the addition of an aliphatic amine containing at least one amino group separated from an hydroxyl group by 2 carbon atoms, the dye, the metal-yielding agent (which should be resistant to alkali) and advantageously phosphoruscontaining anions.  Dyeing with the complexes formed in substance may be effected in the presence of the amines and anions of the last sentence.  Examples are provided of the preparation of the dyes and their complexes and the use of the latter in the dyeing of cotton in red and yellow shades. Specifications 455,274, [Group IV], and 619,969 are referred to.
Patent GB-1294613-A (GB)
Title: Method of producing resorcinol resin
Inventor: AARNA AGU YANOVICH
IPC: C08G8/28
Filed: 1971-04-08
Abstract: 1294613 Resorcinol resin TALLINSKY POLITEKHNICHESKY INSTITUT 8 April 1971 9049/71 Heading C3R A resorcinol resin is made by condensing resorcinol, alkyl resorcinols or mixtures thereof with N-methylolcaprolactam preferably in a molar ratio of the latter to the former of 0À3- 1 : 1, or with a mixture of N-methylolcaprolactam and N,N-dimethylolcarbamide preferably in a molar ratio of the latter to the resorcinol of 0À1-0À4 ; 0À1-0À4 : 1 either in solution in an organic solvent or as a melt at 30-100‹ C. The solvent may be glycerol, ethanol or acetone. The elasticity of the resin may be enhanced by carrying out the condensation reaction in the presence of 5-30 parts wt of polyamides per 100 parts wt resorcinol compounds, such as polycaprolactam. A weak organic acid catalyst may be used, e.g. oxalic, benzoic or citric acid. Uses.-Adhesive cements.