baber/WOPTO huggingface dataset:
Patent GB-599723-A (GB)
Title: Improvements relating to the manufacture for integral cavity resonators for use in electron discharge apparatus
IPC: H01J25/24
Filed: 1944-01-04
Abstract: 599,723. Electric resonators. SPERRY GYROSCOPE CO., Inc. Jan. 4, 1944, No. 23002/46. Convention date, Jan. 6, 1943. Divided out of 599,677. [Class 40 (iii)] A cavity resonator is made by forming a core 44 having external shape and dimensions exactly corresponding to the desired internal surface of the resonator shell, coating the core to a desired thickness with material from which the resonator is to be made, and removing the core entirely from the interior of the coating to produce a resonator shell 46. The core may be made of zinc and electror-plated with copper. After holes 31 and 42 have been bored, the zinc may be dissolved out by hydrochloric acid. Alternatively, a graphited thermoplastic or low melting point metal may be electro-plated and this core is then melted out.
Patent GB-445328-A (GB)
Title: Improvements in or relating to electrolytic condensers
IPC: H01G9/12
Filed: 1935-08-15
Abstract: 445,328. Electrolytic condensers. DUBILIER CONDENSER CO. (1925), Ltd., Victoria Road, North Acton, London. Aug. 15, 1935, No. 23003. Convention date, Dec. 21, 1934. [Class 37] The container of an electrolytic condenser is sealed by interposing between the body A of the container and a spun-over cover B, a gasket C consisting of fibrous material impregnated with a natural or artificial wax or similar substance which is normally solid, but melts when the condenser becomes hot to permit escape of gases from the container, and solidifies again to reseal the container when the condenser cools.
Patent GB-1338776-A (GB)
Title: Automatic time control circuit
IPC: H03L7/081
Filed: 1971-04-19
Abstract: 1338776 Automatic phase control systems; monostable circuits INTERNATIONAL STANDARD ELECTRIC CORP 19 April 1971 [10 March 1970] 23037/71 Headings H3A and H3T An automatic time control circuit for delaying a signal by a predetermined amount includes an adjustable delay circuit 3, a circuit 4 for deriving a control signal pulse C having a length equal to the actual delay suffered by an input pulse A in its passage through a processing circuit 1, 3, 2, a circuit 6, 7 for generating synchronously with the control pulse C a reference pulse D having a duration equal to a predetermined delay, a phase comparator 5 for comparing the control and reference pulses for controlling the delay provided by 3. The pulse D is obtained by a circuit 7 counting a predetermined number of reference pulses from oscillator 6 when initiated by the control pulse C. The adjustable delay circuit is a monostable circuit (see Fig. 4) whose time constant is varied by the phase comparator 5 output. A monostable circuit such as shown in Fig. 4 has its unstable period varied by the application of a control voltage CV to a voltage controlled resistor R which may be an F.E.T. or to vary bias voltages V 1  or V 2  for controlling the discharge time of C. The circuit produces an output pulse of controlled width at B<SP>1</SP> in response to an input pulse at A<SP>1</SP>.
Patent GB-1061617-A (GB)
Title: Improvements in or relating to electrode arrangements for use in bipolar electrolytic cells
IPC: C25B11/03
Filed: 1964-06-04
Abstract: <PICT:1061617/C6-C7/1> An electrode arrangement for use in bipolar electrolytic cells for decomposing water comprises a main electrode 4 to which is secured electrically an auxiliary electrode 1 formed of expanded metal, i.e. sheet metal stamped or cut and stretched to form a mesh.  An expanded metal auxiliary electrode may be secured to each opposite face of the main electrode.  Securing may be effected by a screw 3 with the interposition of a spacing ring 5. Prior auxiliary electrodes are referred to in the form of perforated plates, wire mesh and pressed, grooved or corrugated sheets.
Patent GB-241375-A (GB)
Title: Improvements in vacuum discharge tubes or bulbs for illuminating or advertising purposes and methods of mounting same
IPC: G09F13/26
Filed: 1924-10-03
Abstract: 241,375. Gratze, E. V. Hayes-. Oct. 3, 1924. Signs.-Vacuum tubes are mounted to form an advertising or like sign by embedding them in a composition so that only the upper part is visible. The vacuum or gas-filled discharge tube a is bent to form letters &c. so that the connecting parts a<1> and electrode bulbs or chambers a<2>, which are not required to be visible, lie below the plane of the letters. The tube so formed is partly embedded in composition b, which may contain plaster of paris, cement, wax, &c., and may be contained in a tray or carried within an outer frame b<1>. The composition may be tinted or may be translucent or transparent or made to imitate marble or alabaster. The whole tube may be totally embedded in a translucent composition, or the front may be covered with frosted, sandblasted, etched, or opaque glass, celluloid, &c. The surface of this or of the composition may be patterned. The connections and the oscillators or transformers employed may also be embedded in the composition.
Patent GB-893635-A (GB)
Title: Fluid control valve
IPC: F01L5/02
Filed: 1960-07-05
Abstract: 893,635. Valve gear; valves. STEC, C. L. July 5, 1960 [July 7, 1959], No. 23401/60. Class 7(6). [Also in Group XXIX] A fluid control valve, e.g. the inlet or exhaust valve of an air compressor or, as shown, an I.C. engine, comprises spaced plates 26, 28, Fig. 3, between which is a slidable closure member 34 having an inclined blind hole 36 in which is disposed the cranked end 40 of a rod 38, the end 40 embodying a flat portion to permit egress of lubricant from the hole 36. The rod 38, which is held in a retracted position with the end 40 near the mouth of the hole 36, is lifted by an adjustable follower driven from the engine cam shaft to cause sliding of the member 34. The plates 26, 28 incorporate aligned slots 27, 29, Fig. 4A, which are not parallel to the edges of the respective plates whilst the member 34 is provided with slots 35 equal in number and spacing to the slots 27, 29; the slots 35 are also not parallel to the sides of the member 34 but have the opposite inclination to slots 27, 29 so that as the member 34 reciprocates the slots 35 move with a scissor-like action relative to the fixed slots 27, 29. In another form, the closure member 34a, Fig. 6, has a follower rod 64 with a cranked outer end 66, opposite sides of which are engaged by one of a pair of rollers 78 on a rocker arm 72 whereby oscillation of the latter causes reciprocation of the member 34a. In a modification, the rocker arm 72 is replaced by a pitman 84, Fig. 7, driven by an eccentric 82; the rollers 86 may be dispensed with and the pitman 84 connected to one side of the closure member (Fig. 8, not shown). In a further form, the valve is formed from three relatively rotatable discs 94, 96, 97, Fig. 9, mounted on a pin 98, each disc embodying radial wedge-shaped slots 100, 102, 103; the axes of slots 100, 103 extend through the axis of the pin 98 whereas the axis of slots 102 is offset therefrom to provide the scissor-like action between the slot edges during valve movement. Engine timing may be varied by arranging for one of the discs to have its motion and/or slot spacing so regulated that the slots in the disc may skip one or more of the adjacent slots in the other discs. One of the discs may be dispensed with, the valve being operated by continuously rotating or oscillating one or more of the discs. The discs may be replaced by concentric cones or hemispheres, not shown. In a further embodiment. (Fig. 10 not shown) the valve is comprised of concentric sleeves with peripheral slots, the sleeves being relatively reciprocated. In a final form, the valve, which is mounted in a wind tunnel or, as shown, a pipe line 112, Fig. 12, is provided with a pair of fixed plates 26e, 28e, and a slidable closure member 34e incorporating an operating handle 114; the valve may be constructed in accordance with any of the previous embodiments. In all cases the slots may be of streamlined cross-section to reduce turbulence.
Patent GB-202176-A (GB)
Title: Improvements in projectiles
IPC: F42B12/40
Filed: 1922-08-29
Abstract: 202,176. Nichols, H. J. Aug. 29, 1922. Projectiles are loaded with a dye, pigment, or other non-combustible colouring-material 8, and with an explosive charge 7, which, when fired, for example by a percussion fuze 6, expels the pigment and thereby gives a visual indication of the hit. The colour of the visual indication serves to distinguish one projectile from another.
Patent GB-451812-A (GB)
Title: Improvements in and relating to packing rings for containers subjected to high pressure
IPC: F16J15/02
Filed: 1935-08-21
Abstract: 451,812. Joint-making packing. SCHOLZ; A., (trading as MASCHINENBAU SCHOLZ & CO.), Coesfeld, Westphalia, Germany. Aug. 21, 1935, No. 23473. Convention date, Sept. 8, 1934. [Class 122 (iii)] A packing for containers subject to high pressure comprises a plastic, saddle-shaped ring 5 housed in a groove 2. The ring has oblique surfaces 5b on both sides which are engaged by a wedge-shape metal ring 1 acted upon by a closed resilient ring or a corrugated metal band 4 which is initially stressed. Fluid pressure from the container may also have access to the back of the packing. Specification 338,702, [Class 122 (iii)], is referred to.
Patent GB-1494407-A (GB)
Title: Furniture supporting structure
IPC: F16B7/04
Filed: 1975-05-29
Abstract: 1494407 Furniture joints DULA-WERKE DUSTMANN & CO 29 May 1975 [29 July 1974] 23483/75 Heading F2M [Also in Division E1] Furniture is assembled from columns 1 each having a tubular core around which are formed ribs 2 and dovetail splines 4, the latter each being received in a corresponding channel in a connecting piece 7, e.g. attached by a flange 8 to a panel 9, in a cover element 5 having an outer surface 6 matching that of the ribs 2, or in some other furniture element, e.g. the end of a rail 13, end caps 14 being secured to the ends of the column 1 to retain the elements, after they have been assembled by longitudinal sliding from one end of the column, in engagement with the splines 4. Adjustable feet 15 may additionally be fitted. Fig. 2 shows a panel 9 and a glass plate 12 of a cabinet secured to a column in this way, the glass plate being received between flanges 11 of a connecting piece 10. In Fig. 5, the dovetail connection comprises a pair of clamp plates 16 tightened on a spline 4 by a screw 17 and within a hollow panel by a screw 18.
Patent GB-1198792-A (GB)
Title: Improvements relating to Safety Razor Blades
Inventor: ALSTEAD STANLEY
IPC: B26B21/40
Filed: 1966-05-26
Abstract: 1,198,792. Wrapping razor blades. I. B. RODGER (S. Alstead). 25 Aug., 1967, No. 23542/66. Heading B8C. [Also in Division B4] Double edge safety razor blades are enclosed in a two piece wrapper 1, 2, one half only of which is removed to expose a cutting blade before insertion in the razor. The razor back plate and guard are recessed at 13, 14 to receive the wrapper piece remaining. This latter is removed when the first edge is blunted and the blade is reversed.
Patent GB-1152164-A (GB)
Title: Improvements in Furnaces for Processing Expandable Volcanic Rock
Inventor: MACK ERWIN
IPC: F27B1/00
Filed: 1967-05-22
Abstract: 1,152,164. Furnaces for heat treating granular solids. BRITISH & OVERSEAS MINERALS Ltd. 27 Nov., 1967 [22 May, 1967], No. 23573/67. Heading F4B. A furnace for heat treating expandable perlite comprises an open steel tube 16 having narrowed end portions into the lower of which an oil or gas burner 10 fires. The tube 16 is surrounded by further casings 22, 24 and 28, the tube 16 and casing 22 being provided with longitudinally extending slots whereby butane or preheated air may be introduced into the tube to vary the atmosphere or the temperature along its length as required. Insulating material 30 is located between the casings 24 and 28. The burner 10 may be raised or lowered to vary the combustion rate within tube 16. Crushed perlite to be expanded is fed from hopper 14 through spiral preheating tube 26 into tube 16, the heat expanded perlite being carried with the combustion gases out through pipe 38, any unexpanded perlite dropping out of the bottom of tube 16. Cool air from inlet 40 may be introduced into pipe 38 to cool the combustion gases which are separated from the expanded perlite in a succeeding water cooled separating unit (Fig. 1B, not shown) formed of two cyclone separators, the separated gases then passing to a stack through a plant pressure regulating valve and a suction fan.
Patent GB-1350625-A (GB)
Title: Calcium catalyzed resins
IPC: C08G8/10
Filed: 1971-06-08
Abstract: 1350625 Calcium catalysed resins FIBERGLASS CANADA Ltd 8 June 1971 [8 June 1970] 23732/72 Heading C3R A highly dilutable calcium catalysed thermosetting phenol-formaldehyde aqueous resin solution is prepared by methylolating phenol with formaldehyde, in the absence of other monomers under alkaline conditions, in the presence of calcium oxide or calcium hydroxide as catalyst, and water as solvent, terminating the methylolation reaction by cooling while the condensation reaction product is still water soluble, the formaldehyde being introduced in an amount of 2À8 to 4À5 moles per mole of phenol, the calcium oxide or hydroxide being present in an amount of 3 to 5À5% by weight calcium based on the weight of phenol, the pH during tha reaction being 8À3 to 9À5, the reaction being carried out for at least 3 hours, at a temperature of up to 155‹ F., said reaction temperature being maintained at no higher than 125‹ F. during the first hour of reaction time. The pH of the reaction product is preferably adjusted to 7-7À6 by addition of acid. The reaction may be carried out in batches or continuously. The reaction product may be further reacted with up to 82% wt. of a condensable monomer or an amine type resin. Suitable monomers include urea, dicyandiamide, acetone, methanol and glycols. The reaction product may be characterized as follows:- (i) not over 2% wt. unreacted phenol; (ii) 3-16% wt. unreacted HCHO; (iii) 2À3 to 2À7 methylol groups per phenol molecule; (iv) virtual absence of water insoluble higher phenyls, and (v) low content of monomethylolphenol. The resins can be used in binder preparations and in example 6 such a binder is prepared by mixing a calciumcatalysed phenolic resin, neutralized with carbon dioxide, with ammonium sulphate solution and urea and then with NH 4 OH, a silicone solution and an oil emulsion, and then diluting with water.
Patent GB-232118-A (GB)
Title: Improvements in and relating to tonsil haemostats
IPC: A61B17/12
Filed: 1924-10-07
Abstract: 232,118. McKay, D. Oct. 7, 1924. Tonsils, preventing bleeding from.-A device for preventing bleeding from the cavities formed by the removal of tonsils comprises two plates 1, 2 adapted to fit the cavities and carried by stems 3, 4 of which the latter has a tubular portion 5 to receive the stem 3 telescopically. The stems are enclosed in an outer sleeve 8 to which is riveted a spring strip 12 having its ends 15, 15 turned down to engage with ratchet teeth 10, 11 on the stems 3, 4. The ends 14, 15 can be disengaged from the teeth 10, 11 by levers 18, 19 which embrace the sleeve 8 and pass under the strip 12, the lower ends of the levers having cords 21 attached thereto which pass through eyes 16, 17 on the plates 1, 2. When the device is to be used the cords 21 are pulled thereby causing the levers 18, 19 to raise the ends 14, 15 of the strip 12 out of engagement. with the teeth 10, 11. The plates 1, 2 can then be moved inwards and the device inserted in the mouth and held by a pair of forceps. A second pair of forceps is then used for pulling the stems 3, 4 outwards until the plates 1, 2 bed themselves in the tonsil cavities. The plates 1, 2 are covered with gauze pads which are kept in position by plates 24 which are prevented from sliding backwards along the stems 3, 4 by ratchet teeth 29. Each plate 24 is made in two portions 40, 41 pivoted together at 25 as shown in Fig. 5 and held together bv a spring 26. When the gauze pads are to be removed from the plates 1, 2 the two portions 40, 41 of the plates 24 are separated to free the latter from the ratchet teeth 29 when the plates 24 can be slid along the stems 3. 4 to release the pads. Springs, not shown. surround the stems 3, 4 between the plates 24 and sleeve 8. The plates 1, 2 mav consist of spirals of spring wire or strip.
Patent GB-602819-A (GB)
Title: Improvements in or relating to reciprocating pumps and hydraulic motors
IPC: F04B53/12
Filed: 1945-09-15
Abstract: 602,819. Hydraulic operated pumps. PUGH, C. A., THOMAS, A. H. J., and PLESSEY CO., Ltd. Sept. 15, 1945, No. 23844. [Class 69 (ii)] [Also in Group XXVIII] A combined hydraulic motor pump unit of the double acting reciprocating type comprises a housing 1 with bores 3, 4 accommodating a hydraulically operated piston valve 8 and a hollow ram 9 respectively. The ram 9 guided by a central fixed sleeve 10 is sealed at each of its ends by a valve 13, the valves being urged together by an adjustable loaded tension spring 14, and provided with rectangular shaped heads that permanently engage in recesses 13b formed in sliding sleeves 12 which fit over the outer diameter at the ends of the ram 9. In operation liquid under pressure is supplied to a motor chamber 17 by way of a port 25, annulus j in the piston valve 8, port 29 and an elongated duct 30 in the sleeve 10, thus moving the ram 9 and sleeve 12 to the left as a unit for a distance limited by a stop collar 16a to expel liquid from the pump chamber 18 by way of a passage 36, annulus i in the piston valve 8 and a delivery port 28. During this travel the sleeve 12 uncovers a port 34 to allow pressure liquid to pass to the piston valve chamber 31 ; after the duct 30 has been cut off pressure liquid continues to pass into the chambers 17, 31 by way of an orifice 33 and forces the sleeve 12 to move outwards relative to the ram 9, and the piston valve 8 moves to the right against the resistance of a spring loaded latch device 19, 20. On closure of port 25, the piston valve 8 is subject to pressure from the chamber 17 under the influence of the spring 14 which carries it over the port lap period thus effecting a change over of the pressure liquid ports. Exhaust of the valve chamber 31a at the opposite end of the piston valve 8 is effected by way of the passage 34a communicating with an annulus N in the sleeve 10 and an internal passage 37 in the ram 9 to an exhaust port 26, and suction to the pump chamber 18 by way of a port 27a, annulus m in the piston valve 8 and a passage 36a.
Patent GB-238516-A (GB)
Abstract: 238,516. Soc. Anon. des Cableries et TrÚfileries, (Assignees of Wysiecki, K. von). Aug. 18, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Inductances. - A loading coil comprises a casing 2 and cruciform core 1 preferably of different magnetic permeability, and of such dimensions that the magnetic reluctance of the core and casing are proportional to the resultant magnetic flux of the coils in air at the places where the core and casing are located. Extensions 15 are provided for linking the end fields, and these may be separated from the casing by layers of non-magnetic material.
Patent GB-171482-A (GB)
Title: An improved method of isolating or extracting cellulose, or paper-pulp, from fibrousvegetable materials and apparatus therefor
IPC: D21C3/26
Filed: 1920-08-16
Abstract: 171,482. Raitt, W. Aug. 16, 1920. Pulp, preparation of.-Relates to improvements in the processes and apparatus described in Specifications 15779/12 and 16488/15 for the isolation and extraction of cellulose or paper pulp from fibrous materials such as bamboo, grass, straw, reeds, jute, &c. in which the non-cellulose parts of the materials are removed in separate groups, and consists in carrying out both operations on a charge of material in the same vessel or digester, the vessel being used as a single unit such as A, or several vessels A, B, C being combined as a battery working in series. The liquor from the second digestion is separated from the pump during the discharge of the contents of the digester and is delivered to another digester in which the charge of raw material acts as a trap or filter to arrest any pulp carried over with the liquor. The scum and dirt accumulating in the space 2<1> may be discharged with a portion of the spent liquor through a pipe 13. The pulp from the second digestion is transferred to one or more diffusers D where the leaching or washing is effected by passing the washing-liquor through a number of diffusers in series, the pulp in each diffuser being first .washed with liquor which has passed through the other diffusers, each diffuser being advanced after each washing until finally it is treated with fresh water. Suitable pipe connections, screens as 2, 3, and a storage tank E for lignin liquor from the diffusers are provided, fresh strong soda liquor being supplied by pipe 19.
Patent GB-256420-A (GB)
Title: Improvements in or relating to hydraulic pumps
Filed: 1925-09-25
Abstract: 256,420. Hathorn, Davey, & Co., Ltd., and Lupton, H. R. Sept. 25, 1925. Crank-actuated pumps; multiple-acting piston pumps.-The three plungers of a three-throw pump are replaced by three pairs of smaller plungers 8, 12, 9, 13, 10, 14, each pair working in opposite directions in opposed cylinders. The rear side plungers 8 - - 10 are actuated directly by cranks 2, 4, 6, the others by cranks 3, 5, 7 through crossheads 15, 16 and side rods 17. The pairs of cranks 2 - - 7 are 180‹ apart. Each pair of opposed cylinders use the same inlet and delivery valves 15, 20. The crank-shaft is driven by a shaft 25 through pairs of single helical gear wheels 24, 23. The shaft 25 is mounted in bearings 26 so as to be free to move slightly in the direction of its axis.
Patent GB-722480-A (GB)
Title: Improvements in or relating to soldering apparatus
IPC: B23K3/053
Filed: 1952-09-24
Abstract: 722,480. Soldering. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 24, 1952 [Sept. 27, 1951], No. 23971/52. Class 83 (4). Soldering-apparatus comprises a vessel having a reducing gas supply duct, an aperture to introduce objects to be soldered and a heating body on which solder can be melted and retained, the vessel being in free communication with the surrounding atmosphere. A chromiumnickel wire on a ceramic core is soldered to a nickel wire by introducing them through an aperture 3, Fig. 1, into a glass bulb 1 to be immersed in a drop 6 of silver solder melted on a molybdenum wire loop 5 heated by current from a transformer. A reducing gas of 25 per cent hydrogen, 75 per cent nitrogen flows through the bulb from the inlet 2. A device to be used like a soldering iron is constructed as in Fig. 2, gas being supplied through the handle tube 2.
Patent GB-844121-A (GB)
Title: Improvements relating to frame constructions especially for passenger motor vehicles
IPC: B62D21/02
Filed: 1958-07-25
Abstract: 844,121. Motor vehicle frames. DAIMLER-BENZ A.G. July 25, 1958 [Aug. 2, 1957], No. 23988/58. Class 79(4). [Also in Group XXXII] A frame has side longitudinals 10 upturned at 12 where they are united by a transverse member 13 and forward extensions 15 are secured in the corners thus formed. The members 15 may be extended upwardly to form windscreen pillars as shown 'in Fig. 3.
Patent GB-170449-A (GB)
Title: Certain new and useful improvements in bracket supports for roller blinds
IPC: E06B9/50
Filed: 1920-08-19
Abstract: 170,449. Vickers, G., and Dickson, A., (Clayton, W.). Aug. 19, 1920. Brackets, adjusting.-Adjustable end supports for blind rollers comprise members 6 secured to the window frame and having parallel guides 10, 11 in which engage the bent-out ends 17, 18 of V-shaped spring brackets 14. By pressing together the sides of the V-shaped part of the bracket, the bent ends 17, 18 are released from frictional engagement with the guides 10, 11, and allow the bracket to be adjusted longitudinally. The ends of the guideway may be closed by stamping-up the ends of the plate 6, which may be formed with a broad angle to suit a bav window and furnished with two brackets 14.