baber/WOPTO huggingface dataset:
Patent GB-833053-A (GB)
Title: Improvements in or relating to ferro-magnetic ferrite materials
IPC: C04B35/26
Filed: 1957-05-13
Abstract: 833,053. Magnetic compositions. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 13, 1957 [May 16, 1956; Sept. 21, 1956 (2)], No. 15113/57. Drawings to Specification. Class 38 (2). Ferromagnetic materials having relatively high values of initial permeability and low values of tan # at very high frequencies, e.g. 260 and 500 Mc/sec., have a crystalline constitution which may be represented by the formula Ba (3-a-b-c)  Sr a  Pb b  Ca c  Me (2-d) II Co d  Fe 24  O 41  where Me<SP>II</SP> is one or more of the bivalent metals Mu, Fe, Ni, Cu, Zn, Mg or the complex Li<SP>I</SP>+Fe<SP>III</SP>/2 , and where 0 # a # 1, 0 # b # 0.6, 0 # c # 0.3, and 0 # d # 2, the elementary crystal being hexagonal with a c-axis of 52.3 Š and an a-axis of 5.9 Š. At room temperature, if more than three-quarters of the Co is replaced by Me the materials have a preferred direction of magnetization in the c-axis direction, and if less is replaced they have a preferred plane of magnetization at right-angles to the c-axis. A method of testing whether the materials have a preferred direction or preferred plane of magnetization is described. A large number of examples are described, setting out methods of making the materials from a mixture of oxides or compounds such as carbonates, oxalates or acetates which turn to oxides on heating of the constituent metals. Before addition to the mixture some of the oxides may be combined, preferably at less than 1100‹ C., to form a material containing Fe and exhibiting a magneto plumbite structure. The mixture undergoes some or all of the following steps: grinding in alcohol (or acetone), drying, presintering in air or oxygen and regrinding one or more times, compressing with or without an organic binder and sintering at between 1000‹ and 1400‹ C., preferably between 1200‹ and 1350‹ C. The sintering is normally in oxygen but where iron is to be left in the bivalent state so that the product has a low resistivity, it should be sintered at above 1200‹ C. and/or in an atmosphere containing oxygen, e.g. N+1% O. Loss of Li and Pb is obviated by sintering at a relatively low temperature, and extra Pb may be added. The addition of silicates and fluorides to assist sintering is mentioned. Values of initial permeability and tan # are given for different frequencies and in some cases plotted as curves (Figs. 1-7, not shown).
Patent GB-880564-A (GB)
Title: A method and apparatus for wrapping bead wires for tyre covers with fabric ply loops
IPC: B29D30/50
Filed: 1958-05-12
Abstract: 880,564. Wrapping tyre bead cores. PIRELLI S.p.A. May 12, 1958 [May 14, 1957], No. 15156/58. Class 144 (1). A tyre bead core 24 is wrapped with a flipper strip by means of a drum 1 round which the flat strip plies are wrapped with the bead core centred thereon, the drum surface comprising an inflatable expansible tubular diaphragm 3 anchored at its side edges to end flanges 2 of the drum so that when inflated, the diaphragm expands radially on each side of the bead core to wrap the flipper plies therearound and the expansion of the diaphragm being guided by a hood 13 fixed at one end of the drum 1 and a hood 14 movable axially to abut the hood 13 and enclose the drum so that the parts of the expanded diaphragm on each side of the bead core are forced towards each other to complete the wrapping operation. As shown, the drum 1 comprises a rigid cylinder with end flanges 2 to which the edges of the diaphragm 3 are clamped by rings 5. The drum is mounted on a tubular shaft 7 forming a conduit for the inflating fluid of the diaphragm and rotatable by a motor 34. The shaft is journalled in a sleeve 31 on which is slidably mounted a ring 25 carrying bead locating arms 22 which project axially through holes in the adjacent fixed hood 13. The arms 22 have heads 23 normally housed in recesses in the hood 13 and the ring 25 is movable by a double-acting piston and cylinder 29, 30 to extend the arms 22 to locate the bead core 24 centrally of the drum. The fixed and movable hoods 13, 14 each comprise a conical side wall 15 and a cylindrical periphery 16. The hood 14 is spaced coaxially from the drum and is carried by a piston 19 slidable in a cylinder 20 for projection into a position abutting the fixed hood 13 as shown in broken lines in Fig. 1. In an alternative construction the drum comprises solely the diaphragm 3 anchored to end discs which are mutually approachable on expansion of the diaphragm.
Patent GB-420436-A (GB)
Title: Improved process and apparatus for the mechanical treatment of fabrics, felt and the like
IPC: D06C17/04
Filed: 1933-05-25
Abstract: Fabrics, fur hats, &c. are fulled, felted, stretched, shrunk, passed through washing or dyeing troughs &c. by two or more sets of bars moving in closed paths which press and positively feed the material &c. As shown in Fig. 19, the bars press the material against braked rollers 63, but generally there are sets of moving bars on both sides of the material. As shown in Fig. 1, the sets of bars 1, 2 and 7, 8 are linked to six intergeared crankshafts and have an elliptical motion 20. The bars may <PICT:0420436/IV/1> <PICT:0420436/IV/2> <PICT:0420436/IV/3> <PICT:0420436/IV/4> <PICT:0420436/IV/5> <PICT:0420436/IV/6> <PICT:0420436/IV/7> <PICT:0420436/IV/8> be connected directly to crankshafts 32, 33, 39, 38<1>, Fig. 9, the upper of which are mounted in spring-pressed bearings, or one end only of each set of bars may be connected to crankshafts, the other ends being guided in a straight line or reciprocated vertically through a distance which can be varied as by the mechanism 48, 50, Fig. 12. The bars may be at right angles or inclined to the direction of travel of the material; they may be bent as shown in Fig. 1; their faces may be fluted, ribbed etc.; they may slide at a slight angle to the direction of travel of the material; or be oscillated laterally by double threaded screws 66, 67, Fig. 22, so as to shrink &c. the fabric laterally, or the upper or lower or all the sets of bars may be jigged laterally, e.g. by eccentrics 60, Fig. 18. The bars may be hollow for the circulation of water &c. and may be formed with discharge nozzles 74, Fig. 27. Retarding devices 64, 65, Fig. 20, may be placed in front of and behind the fulling members. When the bars are bent as shown in Fig. 1, and the vertical motion is less than the horizontal motion, the material is shrunk in passing from the horizontal to the material path, and vice versa.
Patent GB-819919-A (GB)
Title: Improvements in or relating to aircraft provided with elevated stabilising members
IPC: B64C29/00
Filed: 1956-05-16
Abstract: 819,919. Aeroplanes. BOUFFORT, V. A. May 16, 1956 [May 27, 1955], No. 15269/56. Class 4. An aircraft has elevated stabilizing members 7 and an auxiliary stabilizing device 24 disposed at the upper end of a vertical fin 6, and auxiliary steering devices 17, the auxiliary devices comprising nozzles fed with compressed air and forwardly directed, and at least one propulsion unit capable of providing a upwardly and forwardly directed thrust, the centre of gravity of the aircraft being located ahead of the centre of lift. The stabilizers 7 are adjustable for pitch control, being linked with a valve in the air supply to the nozzle 24. The nozzle is swivelled about a vertical axis for roll control, pitch and roll being governed by the control column 14. Rudders 4 are adjusted by pedals 10, which also control differentially the air supply to nozzles 17. A jet propulsion motor 15 can be tipped between horizontal and upwardly inclined positions. The stabilizer 7 may be replaced by a drag device of the split rudder type, or a variable speed airscrew on a horizontal axis.
Patent GB-1376911-A (GB)
Title: Inhibition of corrosion
IPC: C23F11/04
Filed: 1972-03-28
Abstract: 1376911 Inhibiting corrosion of steel IMPERIAL CHEMICAL INDUSTRIES Ltd 28 March 1972 [17 May 1971] 15271/71 Headings C7E and C7U Corrosion of steel by organic and inorganic acids is inhibited by adding to the acid dimethylnitramine, bis-nitroaminoethane or azoxybenzene and/ or by pre-treatment of the steel with the organic compound. The compound may be added to formic, acetic, propionic, n-butyric, isobutyric, stearic, mono-, di-, or tri-chloro- or bromo-acetic, lactic, oxalic, succinic, glutaric, adipic, pimelic, terephthalic, suberic, azelaic, sebacic, undecanedioic, tartaric, citric, or trimesic acids or their precursors such as amides, anhydrides, or esters, or to H 2 SO 3 , H 2 SO 4 , hydrohalic acids, HNO 3  or NH 2 SO 3 H in amount trace to 5 wt per cent. For pre-treatment of steel e.g. stainless steel, the compound is used neat, as vapour, or as a solution in water, alcohol, pyridine, quinoline, a nitrile, or in a paint or primer, at temperatures up to 300‹C.
Patent GB-1202174-A (GB)
Title: Improvements in and relating to magnetic lock mechanisms
IPC: E05B47/00
Filed: 1967-11-13
Abstract: 1,202,174. Magnetic locks. HUWIL-WERKE HUGO WILLACH & SOHNE. 13 Nov., 1967 [21 Sept., 1967], No. 15288/69. Divided out of 1,201,160. Heading E2A. A lock mechanism and key comprises a stationary hollow cup-shaped outer cylinder 60, a hollow cup-shaped inner cylinder 61, a portion of which is rotatable and axially slidable in said outer cylinder, and its outer end face having a recess, for a key, a coupling member 63 and a guide member 71 rotatably journalled and restrained axially of said outer cylinder, the guide member 71, and a portion of the coupling member being disposed in the interior of the said outer cylinder and a tumbler 72 which includes a shank journalled rotatably and restrained axially in said guide member, said tumbler having a head 73 provided with an axial groove 77 in its rear end face and a permanent magnet 74 in a recess in its forward end face with poles in juxtaposition to the inner front end wall 75 of said inner cylinder and in the locking condition abutting the same, wherein a nose 78 on the inner circumference of said inner cylinder is capable of engaging in the said groove 77 in said head from behind; wherein said inner cylinder carries pins 68 on its annular rear end portion which are disposed parallel to the axis of the inner cylinder, the pins being surrounded by coiled compression springs 79 and passing through bores in said guide member 71; wherein permanently magnetized poles of opposite polarity (provided by magnets 89, 80) are provided on the juxtapositioned end faces of said head and guide member keeping, by magnetic attraction said head in the locking condition in a rotational position relative to said nose out of alignment with said groove and so as to engage the rear end face of said head; and wherein the key comprises a permanent magnet 83 having poles on its face which is engaged with the bottom of the recess in the outer end face of the inner cylinder and of opposite polarity to the juxtaposed poles of the magnet 74 in the recess in the tumbler head, said key when applied to said recess turning said head by magnetic attraction into a position in which said axial groove therein is aligned with said nose and allowing said compression springs to move the said inner cylinder outwardly into a coupling position. In the coupling position claws 67 carried by the pins 68 engage grooves 66 of the inner cylinder.
Patent GB-109143-A (GB)
Title: Improvements in Domestic or other Gas Heated Boilers.
Inventor: CHAPPELL ROBERT ALEXANDER
IPC: F24H1/36
Filed: 1916-10-27
Abstract: 109,143. Chappell, R. A. Oct. 27, 1916. Sectional boilers.-A domestic or the like gasheated boiler is built up of interchangeable sections 2 traversed by flue-tubes 11 and connected together by a central supply pipe 5, flue spaces being left between the sections. The bottom of the lowest section is dished as shown. The casing is built up of either horizontal or vertical sections.
Patent GB-468135-A (GB)
Title: Improvements in and relating to gas-heated room heating installations
IPC: F24D19/06
Filed: 1935-12-06
Abstract: 468,135. Thermally-actuated valves. MAGNAN, P. Dec. 6, 1935, No. 15454/37. Divided out of and addition to 467,230, [Group XIII], under which a Specification was laid open to inspection under Sect. 91 of the Acts, June 12, 1936. [Class 135] A temperature-sensitive device arranged in a gas-heated air heater as described in the parent Specification to control the gas supply to the burner, comprises a bimetallic strip 8 carrying a spring 14 which presses against the gas valve spindle 15 and supported by a lever 20 pivoted at 21 in an extension 12 of the valve casing. The free end of the lever is moved to adjust the position of the bimetallic strip by a thumb wheel 25 carrying a spindle 22 with right and left-handed screw threads of different pitches.
Patent GB-1428846-A (GB)
Title: Separation of fine solids and liquids
IPC: C02F11/121
Filed: 1973-03-30
Abstract: 1428846 Drying materials ENGLISH CLAYS LOVERING POCHIN & CO Ltd 8 May 1974 [30 March 1973] 15508/73 Heading F4G A process for separating the solid and liquid components of a mixture of a fine solid and a liquid which comprise the steps of flocculating the fine solid component of the mixture to form a sludge 2 over an inclined surface having an angle of up to 45 degrees with the horizontal and thereafter allowing the liquid component of the sludge to drain under gravity. The process may include after the steps of flocculating, allowing the flocculated solid component to settle in a tank, tapping off the liquid and removing the sludge from the tank, the sludge then being spread by a mobile conveyer 1 over the inclined surface to a uniform depth of less than six feet. After one layer has been spread a further layer is pread with an interposed layer 8 of coarse sand. The inclined surface may make an angle of at least 10 degrees and is preferably equal to the angle of repose of the sludge. The flocculant may be polymeric or a watersoluble salt having a cation with a valency greater than one. Several examples of flocculants and fine solid components are given.
Patent GB-497202-A (GB)
Title: Improvements relating to change-speed gearing for use in the drive to the propellor of an aircraft engine
IPC: B64C11/30
Filed: 1938-05-25
Abstract: 497,202. Change speed gearing. ARMSTRONG SIDDELEY MOTORS, Ltd., and LOMBARDINI, P. C. May 25, 1938, No. 15556. [Class 80 (ii)] In a change-speed gearing between an aircraft engine and a propeller, the gearing includes annuli &c. 14, 17 which can be selectively held to give different speed ratios, the changes being effected substantially instantaneously by control means which consists of a high-pressure hydraulic accumulator 51, Fig. 2, with which are associated plungers 30, 31 operatively connected to mechanism for tightening brake bands &c. 21, 22 on the said annuli respectively and means including valves 70, 71, Fig. 4, for selectively applying the accumulator pressure to the plungers. The invention is shown applied to a two-speed gearing in which sun gears 12, 13 on the engine shaft 11 engage the annuli 14, 17 through sets of planets 15, 18 the carriers 16, 19 of which are fast with the annuli 17 and the propeller shaft 20 respectively. Fluid is supplied from a pump (not shown), driven by the engine shaft through gearing 54, to a passage 61 between the accumulator and the valves 70, 71 through an inlet 52, the pressure in the accumulator being controlled by a spring-loaded plunger 56 and being applied to one or other of the plungers 30, 31 in dependence upon the position of the said valves, the latter being formed with rack teeth for engagement by a common pinion 72. In Fig. 4, the valves are shown with the passage 61 in communication with the cylinder 33 of the plunger 31 and the other cylinder 32 open at 73 to exhaust. The pinion is loaded by a spring 74 so as to be biassed to one or other of its extreme positions, and it is preferably actuated through a lostmotion connection by a lever which is operative only when the accumulator is loaded to a predetermined pressure. The plunger 31 is coupled to the tightening mechanism of the brake band 22 by a rod 40 through the linkage 34 ... 39 shown in Fig. 2, and the said mechanism is mounted on a common shaft with the mechanism of the brake band 21 which is actuated by the plunger 30 in such a manner that when one band is tightened the other is released and vice versa, the linkage (not shown) associated with the plunger 30 including a spring to ensure that one of the brake bands is effective when the control means is not operative to prevent the gearing taking up a neutral position.
Patent GB-847308-A (GB)
Title: Improvements in or relating to electric switch mechanism such as relays
Inventor: RUSSELL VICTOR DOUGLAS COLES
IPC: H01H50/70
Filed: 1958-05-14
Abstract: 847,308. Electromagnetic switches. ENGEL & GIBBS Ltd. Dec. 8, 1958 [May 14, 1958], No. 15557/58. Class 38 (5). A momentary-contact switch comprises a contact 36 on a bowed strip 35 which when lowered engages a fixed contact 37 on a flexible arm 38, further movement of the strip 35 depressing the arm 38 and finally forcing the strip to bow in the opposite direction and break the contact. As shown, the strip is actuated electromagnetically by a coil 12, being mounted on angle pieces 44, 45 on a Y-shaped plate 32 secured to the armature 13. On de-energization, a spring 40 bearing on a nut 41 on a threaded extension 42 of the armature, raises the latter and the strip 35 engages an adjustable stop 52 which bends it back to the position shown. Stop 52 and a terminal 49 are carried on a plate 30 secured by spacers 28 to a plate 20 carrying contact arm 38. Plate 20 is attached by screws 26 to a metal plate 21 supported by rods 23 on a valve-type base 1. Member 32 may carry additional contacts 61, 62 co-operating with contacts 73 ... 76 on plates 20, 30. Alternatively the bowed strip may be fixed and the contact arm and stop secured to the armature.
Patent GB-1239859-A (GB)
Title: Doppler radar
Inventor: FULLER KEITH LEWIS
IPC: G01S13/92
Filed: 1969-03-25
Abstract: 1,239,859. Doppler radar. MULLARD Ltd. 25 March, 1969, No. 15560/69. Heading H4D. Specification describes a vehicle speed detecting C.W. Doppler radar in which the speed measurement is not commenced until the vehicle has passed the radar locality and is receding at a distance determined by the amplitude of the echo signal, Fig. 3, falling to a predetermined level 7. The circuitry may be part solid state whereby the aerial (S) and said circuitry part may be assembled in a cats-eye in the middle of a traffic lane and the analysing and display means situated at a remote control point and be fed with the output of several of said cats-eye assemblies. In the embodiment of Fig. 4, an X-band Gunn-effect oscillator is amplitude modulated at 10 and the output transmitted at 13. The receiver aerial lobe is such that the amplitude of the echo signal as the vehicle nears the aerial, passes over it and then recedes, is as shown in Fig. 3. The Doppler signal produced by detector 16 is extracted by low-pass filter 17. The amplitude of the echo is detected at 27 by means of the amplitude modulation extracted at 21. Means 27 only gives an output when the amplitude is at the level 7, Fig. 3. The receding part of curve, Fig. 3, is detected by differentiator 23 and diode 26. The outputs of detector 27 and diode 26 occur simultaneously at point 8 and this event is detected at 24. An output from 24 actuates a presence counter 27 and also commences a ¢ sec. pulse from means 28. This gates the Doppler signal at 18 to the analysing and display means. The length of the vehicle may be determined by multiplying the duration of the constant (maximum) part of the amplitude curve by the vehicle's velocity.
Patent GB-862579-A (GB)
Title: Improvements in or relating to a photographic film gate
IPC: G03B1/56
Filed: 1959-05-07
Abstract: 862,579. Photographic film gates. KODAK Ltd. May 7, 1959 [May 7, 1958], No. 15641/59. Classes 97(1) and 98(1) A film gate for use in apparatus having a feed claw 39 for a perforated film strip F comprises an apertured plate 33 having an opening 37 for receiving the claw tooth 36, a pressure plate 55 mounted for pivotal movement about one longitudinal edge between a first position adjacent the apertured plate and a second position permitting the edgewise insertion and removal of the film strip between the two gate plates, means such as leaf spring 57 for resiliently biassing the pressure plate to the first position, and means such as tongue 53 formed on the pressure plate for withdrawing the claw tooth from the opening 37 upon opening of the gate by inserting the film strip edgewise into a throat formed between the apertured plate and the bevelled surface 87 extending along another edge of the pressure plate parallel to its pivotal edge. Typically a resilient clip 79 adjacent the apertured plate has a pair of bevelled noses 83 for guiding the film edge into the throat and the pressure plate is pivoted on a flange 41 on the apertured plate through a slot 51 in which projects the claw-displacing tongue 53, the flange 41 also serving as a film edge guide. The gate may be used in a double run 8 mm. twin spool magazine motion picture or other camera, a still or motion picture projector, viewer, or photographic enlarger.
Patent GB-200321-A (GB)
Title: An improved stand for the exhibition of cloth in shop windows & the like
IPC: A47F7/18
Filed: 1922-06-06
Abstract: 200,321. Potts, F. C., Fry, W., and Blame, J. June 6, 1922. Stands and upright supports.-A stand for displaying cloth in folds comprises a base A provided with a hinged pillar D and a number of horizontally extending legs B, pivotally secured thereto to allow spreading of their free ends B<5> which are provided with sloping pins C with pointed ends C<2> on which the cloth is secured, the cloth being also secured, by pins &c., to a cap E on the pillar D. In a modification the pillar D is socketed or otherwise secured to the base A which is provided with recesses F to receive the legs B with their free ends spread apart.
Patent GB-265845-A (GB)
Title: Improvements in cooling plates
IPC: C11D13/12
Filed: 1926-06-22
Abstract: 265,845. Dehn, F. B., (Jacobi, Akt.-Ges., A.). June 22, 1926. Plate apparatus. - A plate n applicable for cooling soap is constructed with stays g made of pressed metal, forming a sinuous passage for the cooling medium.
Patent GB-272556-A (GB)
Title: Improvements in the manufacture and production of valuable liquid hydrocarbons and their derivatives particularly those of low boiling point from coal, tars, mineral oils and the like
IPC: C10G1/06
Filed: 1927-06-13
Abstract: 272,556. I. G. Farbenindustrie Akt.- Ges. June 14, 1926, [Convention date]. Hydrogenation, destructive. - In the destructive hydrogenation of coaly materials, oils, tars, bitumens &c. under pressure and at elevated temperatures preferably in the presence of catalysts, an improved yield of low boiling-point hydrocarbons is obtained by circulating in a closed circuit a large excess of hydrogenating gases through the reaction vessel so as to keep the partial pressure of the products below 10 per cent of the total pressure. Crude mineral oil is atomized by a heated current of hydrogen in a vertical reaction vessel lined with aluminium and is passed at 475‹ C. under a pressure of 200 atmospheres over a catalyst composed of molybdenum and chromium oxides. The injected quantity of preheated crude oil is regulated so that 1 cubic metre of cooled product is obtained whilst 150,000 cubic meters of hydrogenating gas are being circulated. The product contains about 60 per cent benzine. Specification 174,321 is referred to.