baber/WOPTO huggingface dataset:
Patent GB-147735-A (GB)
Title: Improvements in the construction of structural parts of aeroplanes and hydro-aeroplanes
IPC: B64C3/00
Filed: 1920-07-08
Abstract: 147,735. Junkers, H. Aug. 6, 1915, [Convention date]. Floats for aerial machines.-The floats &c. of hydro-aeroplanes are constructed of sheet metal, veneer, presspahn, celluloid-like materials, &c. strengthened by stiffening-elements arranged at extremely small distances apart, so as to obviate the necessity of placing the material under initial .tension. Figs. 3 and 4 are diagrammatic transverse and longitudinal sections showing the inven- .tion applied to an aeroplane wing which comprises an outer skin 1 stiffened by a reinforcement 2, which may take the form of longitudinal ribs as indicated at 2, Fig. 5, transverse frames 3 being provided at intervals; or there may be transverse ribs 3 and longitudinal ribs 2, 4 as shown in Fig. 7 or Fig. 9<a>. Corrugated sheet metal may be used instead of the ribs. Fig. 15 shows the reinforcement composed of a series of rods or bars 2 arranged in the form of triangular or square pyramids, the apexes 3 of which are connected by rods 4 or sheet metal. One or more similar systems of rods 6 may be arranged inside the first series. Fig. 18<a> shows a cellular stiffening 3 covered by a plate 4; the cells may be formed by placing triangular or hexagonal hollow bodies side by side. Fig. 20<a> shows a stiffening-element comprising a plate 2 with embossings 3. The various forms of reinforcement may be combined with each other. Fig. 24 shows a hull for an aeroplane having the skin 1 strengthened by corrugated sheet metal 2 and hollow longitudinal members 4, transverse frames 3 being provided at intervals. The various elements may be connected by welding, riveting, &c.
Patent GB-379049-A (GB)
Title: Improved latch fastener for gates and the like
IPC: E05C1/12
Filed: 1931-07-09
Abstract: 379,049. Lift latches. ALFIERI, B., 77, Dukes Avenue, New Malden, Surrey. July 9, 1931, No. 19754. [Class 44.] A lift latch 1 for gates pivoted on a plate 2 attached to the gate and engaging a catch member on the post is lifted by a sliding member 6 passing through the gate and having an inclined or cam surface 9 engaging the under side of the latch. The sliding member is operated from one side by a depending pivoted handle 10, and from the other by pressing the end of the member which projects through a bearing plate 8 to form a press-button. The member 6 may be pivoted to the lower end of the handle, or as shown, at an intermediate position. The sliding member may be held in normal position by a spring, not shown, or by the weight of the handle.
Patent GB-238236-A (GB)
Title: Improvements in or relating to suspension devices for endless track vehicles
IPC: B62D55/108
Filed: 1925-08-05
Abstract: 238,236. Kegresse, A. Aug. 6, 1924, [Convention date]. Endless-track vehicles having a single carrier axle are provided with a double system of springs between the main frame 1 and the rollers 7, comprising stiff springs 2 between the frame and pivoted beams 4, and lighter springs 5 between the beams and levers 6 carrying the rollers or vice versa. The springs may be of any type.
Patent GB-669778-A (GB)
Title: Improvements in and relating to aqueous dispersions of polymeric materials
IPC: C08L27/06
Filed: 1949-07-27
Abstract: Stable, aqueous dispersions of polymers of vinyl chloride or copolymers thereof with a minor proportion of, e.g., vinyl bromide or acetate, vinylidene chloride, acrylonitrile, methyl and ethyl acrylates, methyl methacrylate and diethyl fumarate are prepared by incorporating up to 5 per cent of a water-soluble salt, e.g. the sodium salt, of polybenzyl sulphonic acid either before, or, preferably, after polymerization.  The dispersions may be prepared by emulsion polymerization using emulsifying agents, e.g. sodium and ammonium salts of sulphated or sulphonated methyl oleate, alkali salts of sulphonated aliphatic hydrocarbons, oleyl sodium sulphate and sodium stearate, catalysts, e.g. ammonium persulphate, and sodium hydroxide, ethyl palmitate and hydrated copper sulphate.  The polybenzyl sulphonate may be added as a 20 per cent aqueous solution. Improved colour-stable crepes are obtained when the stabilized dispersion is spray dried, compounded with dibutyl phthalate and hot-rolled.  Specifications 570,330, 570,331, 573,366, 574,482, 586,796, 587,455, 587,880, 589,264, 598,777, 599,429, 622,511, 671,647, 671,648, 10076/47, 3224/48 (as open to inspection under Sect. 91), and U.S.A. Specification 1,336,759 are referred to.
Patent GB-450904-A (GB)
Title: Improvements in or relating to holders for carbon electrodes of electric arc lamps
IPC: H05B31/18
Filed: 1935-07-11
Abstract: 450,904. Arc lamps. PROJECTOR IMPROVEMENT CO., Inc., 405, Lexington Avenue, New York, U.S.A. July 11, 1935, No. 19878. Convention date, July 11, 1934. [Class 39 (i)] A carbon saver for electric arc lamps comprises a ferrule for a non-undercut end of a carbon stick, the ferrule including a tubular heat-resisting portion having a smooth internal passage, the wall of which is circularly continuous and is so thin and relatively yieldable as to enable the carbon stick to be press-fitted therein without breakage or distortion of the wall, the outside surface of the ferrule being so shaped and so relatively slightly larger than that of the carbon stick as to be adapted to pass the rollers of a carbon feeding head. As shown in Fig. 3, the carbon stick 11 is pressfitted into the thin-walled portion 17 of the ferrule 16. In the form shown, the ferrule has a rigid extension 18 adapted to enter a clutch element 23 which is tightened by screwing it into a tapered portion 22 of the electrode holder 12. Other forms of engagement between the ferrule and the member 12 may comprise an expansible plug element adapted to enter a rigid socket on the ferrule, or a screwed portion engaging an internally-threaded part of the ferrule. " Bleeding " holes are provided in the ferrule or in the holder, to allow escape of gases emitted from the portion of the carbon within the ferrule. In a modification, Fig. 10, the wall 46 is slightly thicker and is bevelled to ensure smooth passage of the feeding rollers. A screwed portion 48 engages a corresponding portion in the holder. To prevent distortion of thin-walled ferrules during the insertion of the carbon stick, they may be contained within a guide member adapted to fit closely the outside of the ferrule. The ferrules may be of brass or soft iron and their yieldable portions may be À003 to À008 inches in thickness. The Specification as open to inspection under Sect. 91 comprises also the use of adhesive or powdered or plastic materials of carbon or the like between the carbon stick and the ferrule. This subject-matter does not appear in the Specification as accepted.
Patent GB-1463079-A (GB)
Title: Fishing aid
IPC: A01K91/02
Filed: 1973-04-26
Abstract: 1463079 Preventing early casting with fixed spool rods G F DRURY 17 April 1974 [26 April 1973] 19934/73 Heading A1A The line of a fixed spool fishing rod is prevented from coming off the spool prior to casting by a device which comprises two abutment members which are resiliently urged together. Prior to casting the line is passed laterally through the nip formed between the two members and held on one side thereof until casting, whereupon the pull imparted to the line by the momentum of its associated weight draws it laterally back through the nip to the other side of the members whereupon it is freely cast from the spool. The device may be attached to the rod or the spool and may be incorporated into the latter. As shown, the device 9, Fig. 1, comprises an adjustably spring biassed ball 16, Fig. 2, and a screw adjustable block 23 having a ball engaging concave recess 24.
Patent GB-138141-A (GB)
Title: Improvements relating to metal cutting tools and to holders therefor
IPC: B23B27/16
Filed: 1918-12-03
Abstract: 138,141. Godfrey, A. Dec. 3, 1918. Tools; tool-holders. -A lathe or like tool has a double cutting- edge formed by inclining the top surface inwardly and downwardly from its lateral edges to the centre, and giving a V-shape with suitable rake to its cutting-end. The angle of the V is usually about 120 degrees. The tool is held in a slotted holder 2, one face of the slot having a V or rounded projection to engage the V in the tool, a screw 3 securing the tool.
Patent GB-185298-A (GB)
Title: Improvements in or relating to tools or cutters applicable for use in milling and other machines
IPC: B23C5/24
Filed: 1921-07-26
Abstract: 185,298. Wild & Co., Ltd., A. G., and Histon, R. July 26, 1921. Milling-cutters; cutters and cutter-bars. - Adjustable cutters for milling- tools, boring-bars, reamers, &c. are secured in a holder by means of longitudinal and transverse serrations formed on the cutters, the holder, and the locking-device. The holder a contains slots b, provided on the thrust side. with serrated surfaces c engaging similar surfaces at the back of the cutters d, and recesses for receiving wedge-plugs h, secured by bolts i, also provided with serrated surfaces g, engaging similar surfaces on the front of the cutters. The lines of the two sets of serrations are perpendicular to each other, and may be straight or curved, while the transverse sections of the teeth may be V- shaped, saw-toothed, or other form. When applied to boring-bars and reamers, the plugs are replaced by rectangular wedge-blocks secured by bolts, and have chamfered edges to clear the work and debris. The holder may be made of cast iron or mild steel, the clamping wedges and bolts of case-hardened mild steel, and the cutters of hardened tool-steel.
Patent GB-347540-A (GB)
Title: A magazine pencil
IPC: B43K21/08
Filed: 1930-07-02
Abstract: 347,540. Pencil holders. FEND, K., 68, Westliche, Pforzheim, Germany. July 2, 1930, No. 20055. [Class 146 (iii).] In pencils of the kind provided with a receptacle for lead refills, the rotatable feed device consists of two or more telescopic sleeves i, k, as shown in the Figure, which are rotatable in common. The outer sleeve i has a longitudinally fluted lining m, and the inner sleeve k has on its rear end a short, longitudinally fluted lining n engaging with the lining m. The lower end of the outer sleeve i is inwardly flanged and grips against the inner sleeve k ; its upper end is riveted through a spacer-ring o to a lead magazine p which projects into the hollow space of the inner sleeve k. The magazine p is covered by a cap q screwed on the outer sleeve i, and may be utilized for carrying a rubber in a cavity in its cover plate. A screw-threaded part r is soldered to the lower end of the inner sleeve k and is adapted to engage with a screw-threaded lining h which is soldered to a lining g, in turn soldered to the outer casing a of the pencil. The part r carries a tapered feed pin t which has a reduced diameter portion s at its rear end. A lead-holding sleeve u is longitudinally movable on the feed pin t, and its rear end v is pressed around the reduced portion s of the pin so that the pin cannot be pulled out. By turning the cap q the sleeves i, k are rotated, so that the screwed-part r is screwed backward or forward in the lining h and the lead w advanced or withdrawn accordingly. A conical part c having a central bore d which is internally screw-threaded in the front portion e is fitted in the front end b of the casing a. A guidepiece f for the lead point is screwed into the portion e of the conical part c and is provided with a bore x and a smaller bore y for the lead. A shoulder z thus formed serves as a stop for the front end of the lead-holding sleeve u, from which, on further turning the feeding device, the rest of the lead w is ejected by the advancing feed pin t. When it is desired to use longer leads, more than two telescopic sleeves may be provided.
Patent GB-186584-A (GB)
Title: Improvements in braking devices for vehicles
IPC: B60T11/10
Filed: 1922-07-21
Abstract: 186,584. Soc. Anon. des AÚroplanes G. Voisin. Sept. 28, 1921, [Convention date]. Brakes, arrangement and dispasition of.- Brakes for the steering wheels of vehicles comprise a pair of opposed cylinders d secured to the steering pivot p substantially at right-angles to the axis of this pivot, and in the middle vertical plane of the wheel. The pistons i of the cylinders each carry a brake segment for engagement with the drum k. The cylinders may be supplied with pressure, fluid by way of pipe a, a fixed plug b disposed in the steering axis, and a barrel member h carried by the pipes f, g so as to be free to turn with the steering movements of the wheel about the plug b, or the supply pipe may be disposed in a passage in the screwed member t by which the steering pivot is secured. According to the Specification, as open to inspection under Sect. 91 (3) (a) brake cylinders may also be mounted on the rear axle casing. This subject-matter does not appear in the Specification as accepted.
Patent GB-790191-A (GB)
Title: Improvements in or relating to wave guide components
Inventor: BIRTWISTLE WILLIAM
IPC: B32B15/08
Filed: 1953-07-21
Abstract: 790,191. Making waveguides. MIDDLESEX GUN CO., Ltd. Oct. 20, 1954 [July 21, 1953], Neo..20174/53. Class 83 (2). [Also in Group XL (b)] A waveguide is made by coating a removable former 1 with a thin layer 3 of metal which is then covered with laminated resinous material 11 to give the required strength. The former is made of a suitable fusible or soluble plastic, metal or wax. The metallic layer is about 0.001 in. to 0.015 in. thick and may consist of copper. The laminations 11 may be made from cotton fabric impregnated with ethoxylene resins. The fabric is wound around the metallic layer 3 and around the flanges 7 which are secured in position by an adhesive 9 as described in Specification 790,192, [Group XL (b)]. A coating 13 of metal provides electrical contact between the flanges 5 and the metallic layer 3.
Patent GB-148422-A (GB)
Title: A device for ascertaining the direction of sound waves
IPC: G01S1/72
Filed: 1920-07-10
Abstract: 148,422. Signal Ges. May 29, 1915, [Convention date]. Locating subaqueous sounds; subaqueous audible signals.-Apparatus for ascertaining the direction of impinging sound waves comprises a directionally-responsive microphone or other sound-detector which can be adjusted in position until a maximum response is obtained, the apparatus being affected by the motion component, as distinct from the pressure component, of the sound waves. Fig. 1 is a section through one form of the apparatus. A heavy flat ring 1 has a microphone 2 in a central aperture. The microphone casing and back electrode 4 are rigidly fixed to the ring, and the front electrode 4<1> is attached to a diaphragm 2. The microphone is enclosed by two hemispherical cups clamped to the ring, the casing thus formed being equal in weight to the volume of the soundtransmitting medium, for example, water it d!splaces. The apparatus does not respond to pressure variations set up by the sound waves, and is responsive to those movements of the medium which have a component in the direction of the microphone axis. In a modification shown in Fig. 3, the detector 4 is mounted in the axis of symmetry of the casing 1, thus ensuring that sound waves travelling in the material of the casing do not affect the detector. The hollow mass 3 surrounding the detector is connected by elastic rods to parallel end walls 2. The detector responds only to movements of the casing in the direction of the rods, and gives a maximum response when the wave frequency is equal to the natural frequency of the longitudinal vibrations of the system comprising the elastic rods and the mass 3. If the natural frequency for transverse vibrations is different from the sound frequency employed, the apparatus as a whole is directionally responsive.
Patent GB-905905-A (GB)
Title: Improvements in, or relating to, couplings for scaffolding and like tubes
Inventor: BURNS THOMAS
IPC: E04G7/20
Filed: 1960-06-10
Abstract: 905,905. Clamps. BOULTON SCAFFOLDING Ltd. June 12, 1961 [June 10, 1960], No. 20406/60. Class 44. Relates to scaffold or like clamps comprising a body 1 of which opposite ends are adapted to be inserted respectively into adjacent ends of two tubes 5 and which is provided with an external central projection for abutment by the tube ends, a clamping-plate 2 which is assembled in spaced relationship to the centre and extends lengthwise of the body, and adjustable means for applying pressure to the plate for gripping the tube ends between the body and the plate. According to the invention, the body 1 is cylindrical, a bolt 3, of which the shank extends diametrically through the body 1 midway between the body ends, is secured to the body with the head 6 and shank projecting respectively to opposite sides of the body, a clamping plate 2 having a central hole, being assembled to the body by engaging the bolt shank and the hole and a nut 4 screwed on to the shank externally of the plate 2 so that it is adapted to apply clamping pressure to the plate. As shown, the length of the plate 2 is greater than that of the body and is formed with strengthening ribs 7, 8. The bolt 3 is a T-bolt having its head secured permanently to one side of the body. A central boss may be formed around the bolt hole and the body which abuts the plate 2 and the plate may be angular in cross-section. Specifications 804,037, 804,038, 804,039 and 804,040 are referred to.
Patent GB-172590-A (GB)
Title: Improved thief-proof means for securing packing cases
IPC: B65D55/02
Filed: 1921-07-30
Abstract: 172,590. Helsby, W. H. July 30, 1921. Nails.-Relates to nails for securing together the parts of packing cases. A tubular socket a, preferably of oval cross section formed with an enlarged head and a sharpened lower end above which are two orifices c, is first driven into the parts to be engaged so that its upper edge is flush with the surface of the wood &c. Through it is driven a nail h, which may taper downwards, the bifurcated ends i of which incline downwardly as they pass through the orifices, the nail being of such length that when driven home its upper edge is below the top of the socket.
Patent GB-617788-A (GB)
Title: Improvements relating to thermionic valve control circuits
IPC: H03K17/54
Filed: 1946-07-09
Abstract: 617,788. Valve circuits. SHAND, G., BAUGH, A., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. July 9, 1946, No. 20504. [Class 40 (vi)] A chain switching arrangement in which a number of circuits are arranged in cascade so that when any circuit is actuated it initiates the actuation of the succeeding circuit after a predetermined time delay, comprises at least two cathode-coupled flip-flop circuits connected in cascade so that when the first flip-flop reverts to its initial stable state after having been tripped into its unstable state by an initiating pulse, the pulse produced across its cathode load resistor trips the succeeding flip-flop circuit. Fig. 1 shows an arrangement in which the valve VI of the first flip-flop is normally conducting and valve V2 cut-off by the bias across the common cathode resistor R4. A negative initiating pulse across the input resistor R1 cuts off valve V1 and the circuit flips over to its unstable state with valve V2 conducting and drawing considerably heavier current than V1. The voltage across the cathode resistor, Fig. 2 (not shown), rises, but has no effect on the first valve V3 of the second flip-flop which is already conducting. When the first circuit flops back to its normal stable state the voltage across its cathode resistor falls and the negative pulse thus applied to the valve V3 causes it to flip over to the unstable state. This sequence then continuing round the chain which may be a closed one. When a flip-flop is in the tripped position the time constant of the grid-cathode circuit is made large to ensure stability, but in the untripped position the time constant is considerably reduced by the diode D1 which conducts on the negative tripping pulses and shorts resistor by the lower value resistor R12. The flip-flops may be associated with gating valves which are thus rendered operative in sequence to pass signals applied to their inputs to a common load circuit. In a modification, Fig. 3 (not shown), the first valve of each flip-flop is normally non-conducting and action is initiated by a positive going pulse, a negative going pulse being produced across the common cathode resistor of each flip-flop circuit as each circuit is actuated, by returning the grid leak of the normally conducting valve to a positive potential so that this valve normally draws a much higher conducting current than does the other valve of the flip-flop when that also is conducting.
Patent GB-760332-A (GB)
Title: Tuning electric oscillatory circuits
Inventor: BALEAN JOHN HERMANN
IPC: H01J17/00
Filed: 1953-07-23
Abstract: 760,332. Cold-cathode tubes. MURPHY RADIO, Ltd. Oct. 25, 1954 [July 23, 1953], No. 20535/53. Class 39(1). [Also in Group XL(b)] A high-frequency oscillatory circuit is characterized in that a wire forming part of the circuit is included within a cold cathode tube within which a gas at low pressure is maintained in a state of ionization by a variable d.c. potential producing a glow which can be made to extend to a variable extent over the included part of the oscillatory circuit, thereby varying the frequency of the circuit. In Fig. 1, the tube 1 comprises two wires 2 and 3, slightly inclined to one another, forming the anode and cathode. The wires are connected at one end across a condenser 4 and through a variable resistance 5 to a d.c. source 6. At the other end the wires are connected to the remainder of the oscillatory circuit or to other circuits (not shown). A glow discharge surrounding the cathode 3 extends along the wire as the resistance 5 is reduced. The effective diameter of the wire 3 is increased by the sheath of electrons and ions, thus reducing its resistance and inductance and increasing the distributed capacitance between the wires 2 and 3. Part of the wire 2 may be coated with metals of low work function or with varium oxide to determine the location and extent of the glow discharge. In the tube shown in Fig. 4 the anode and cathode wires 12 and 13 are parallel and are independent of the loop conductor 14, forming part of the oscillatory circuit, part of which is short-circuited by the discharge. In an alternative embodiment, the loop conductor forms the cathode, and the anode is a single wire extending only a short distance along the tube. In a further alternative embodiment the loop conductor forms the anode, and the cathode is a single wire extending the full length of the tube.