baber/WOPTO huggingface dataset:
Patent GB-886641-A (GB)
Title: Vacuum cleaner
IPC: A47L5/36
Filed: 1959-08-27
Abstract: 886,641. Vacuum cleaners ; air filters. KENT CO. Inc. Aug. 27, 1959 [April 8, 1959], No. 29306/59. Classes 8(1) and 8(2). A vacuum cleaner comprises a lower housing 11 secured to an upper housing 18 containing the fans 20. The hose connection 14 is associated with a deflector 44 to direct incoming air circumferentially and to separate the dirt, which is collected in the container 11. Two filter bags 38, 40 and frame 36 are mounted in the top of the container together with a fine filter 42 for particles or bacteria of a size larger than 0À3 microns. The bag 40 is attached to the container 11 and collects dirt for disposal when the container is inverted. The filter 38 attached to the frame 36, the flange 34 of which is covered with sealing material, forms a joint between the parts 11, 18. The partition plate 46 has two holes cut in it for the passage of air to the fans, whilst it and the inside surface of housing 18 are lined with foam rubber 47 to seal off the upper from the lower compartment and reduce the transmission of noise and vibration to the outside of the machine. The filter 42 is made up from one or more blankets of resin impregnated glass wool 54 the individual fibres of which have a maximum diameter of 1À25 microns and is held between upper 52 and lower 56 mesh supports, the lower having an annular ring fixed thereon, drilled to slip over threaded studs and fixed in by wing nuts, the filter blankets extending beyond the ring to ensure effective edge filtering. After leaving housing 18 the air passes through an opening 72 into a sound muffler 24 where it is diffused, discharging into the atmosphere through the peripheral ports 26.
Patent GB-700142-A (GB)
Title: Improvements in or relating to methods of fastening two wires or like elements on a plate, with one wire on each side of the plate
IPC: H05K13/04
Filed: 1951-12-14
Abstract: 700,142. Jointing by forging. TELEFONAKTIEBOLAGET L. M. ERICSSON. Dec. 14, 1951 [Dec. 15, 1950], No. 29395/51. Class 83 (4) [Also in Groups XXV and XXXVI] Riveting.-In a method of fastening two wires to each other, and one to each side of a plate, the wires are inserted in axial cavities in the ends of a rivet placed in a hole in the plate and the rivet and wires are simultaneously secured in a riveting operation. An electrolytic condenser has an external tin-plated wire 2 for a soldering connection and an internal aluminium wire 3 electrically connected together and attached to a laminated rubber and paper-resin lid 4 by an aluminium rivet 5, Fig. 1, having axial cavities 1 into which the ends of the wires are inserted. The rivet is axially and radially compressed to form heads with the wires securely held inside, and forms a hermetic seal with the resin layer 6. The ends of the wires may be threaded or grooved. In a modification the rivet may be anchored in unevennesses 7, Fig. 4, in the hole of the plate 4.
Patent GB-1417003-A (GB)
Title: Stabilisation of fibrinogen
IPC: A61K38/36
Filed: 1972-06-22
Abstract: 1417003 Fibrinogen RADIOCHEMICAL CENTRE Ltd 22 June 1973 [22 June 1972] 29401/72 Heading C3H Fibrinogen and iodinated (<SP>125</SP>I) and (<SP>131</SP>I) fibrinogen are stabilized by addition thereto of from 1 to 1000 parts, per part by weight of the fibrinogen, of albumin to reduce or prevent unwanted decomposition. An aqueous solution or suspension of the fibrinogen and albumin in a dilute solution of sodium citrate and sodium chloride may be freeze-dried to give a solid product wherein the ratio of soluble clottable fibrinogen present to soluble clottable fibrinogen originally provided, remains above 0À8 during storage for 2 months at 2‹ C. The fibrinogen and albumin are preferably of human origin where the solid product is to be used in the treatment of human beings.
Patent GB-1283363-A (GB)
Title: Circuit-board unit
IPC: H05K7/02
Filed: 1969-06-10
Abstract: 1283363 Circuit board assemblies SIEMENS AG 10 June 1969 [12 June 1968] 29414/69 Heading HlR In an electrical unit a plurality of circuit boards PI-P4 are mounted in metal frames M2-M4 which are stacked one above the other with metal covers Dl, D2 at each end, the frames and covers thus forming a housing for the circuit boards. As shown, the boards rest on ledges in the frames and the frames, boards and covers are secured together by screw connections as shown by the broken lines. Components B, conductors, and contact pins St are secured to the boards, connections between the various components and conductors on different boards being made through the contact pins, which connections are detachable. Contact plug Sl  may be formed in the covers Dl, D2, and as shown, the frames M3, M4 and board P3 are made longer than the other frames and boards to accommodate a plug S3. The boards may be provided on one or both sides with a metal layer which then acts as a conductor for taking away heat, a screen between components on different boards, and a seal between adjacent frames. The exposed surfaces of the covers and frames are formed as cooling surfaces. Reference has been directed by the Comptroller to Specification 1,142,382.
Patent GB-193919-A (GB)
Title: Improvements relating to valves and valve-gear for internal combustion engines
IPC: F01L7/04
Filed: 1921-11-04
Abstract: 193,919. Holmes, V. W. Nov. 4, 1921. Valves.-In a two-stroke engine, a series of piston-controlled exhaust ports 2 and inlet ports 1 are further controlled by a single row of ports 4 in a rotary or oscillating sleeve valve 3. Additional piston-controlled inlet and exhaust ports 8, 9 may be provided at a lower level. Both series of ports 1 and 8 may admit air, for example in a Diesel engine, and in such case may be united to form a single series; or the lower ports 8 may admit scavenging-air, and the upper series 1 be uncovered later by the valve to admit fuel. In a double-acting engine, the additional sleeveless ports may be arranged in the space between the two liners of the cylinder. The sleeve valve may be within the cylinder.
Patent GB-789309-A (GB)
Title: Process for photoelectric reproductions and apparatus therefor
IPC: G03B15/00
Filed: 1955-10-17
Abstract: 789,309. Producing photographs electrically. BERCHTOLD, J. Oct. 17, 1955 [Nov. 2, 1954], No. 29505/55. Class 98(2) Photographs or radiographs are produced by projecting a pattern of electromagnetic waves through an electrically conductive layer 1 having low absorption for the particular waves used, on to a contacting photoconductive layer 2, the other side of which is in contact with a transversely conductive laterally non-conductive layer 3 backed by an electosensitive paper 4 and an electrical conductive layer 5, while an electrical potential is applied between layers 1 and 5. The layer 2 becomes conducting in the exposed portions and a corresponding image is formed in the electrosensitive paper by electrolytic action. Layer 3 may be formed of a bundle of parallel wires insulated from each other, and their ends adjacent layer 2 may be coated with nickel, but not so as to shortcircuit neighboring wires. The photo conductive layer 2 may be of selenium applied to the ends of the wires, and layer 1 may be a thin layer of gold evaporated on to the selenium and preferably covered with a layed of a transparent conducting metal oxide. The electrode 5 may be a sheet of metal covered with rubber containing graphite. The image may be formed in the electrosensitive layer by the coupling of a diazonium compound, or by the destroying of an azo dye due to changes in pH at the surfaces of the paper or oxidation by liberated chlorine due to the passage of an electrolytic current. Improved results are said to be obtained if the exposure is intermittent and the polarity of the applied voltage is reversed during periods of darkness. Thus a reversing switch 9 may be provided and operated in synchronism with a shutter 8. Alternatively, the applied potential may be A.C. and a low inertia light or X-ray source may be actuated by a half-wave rectified A.C. voltage.
Patent GB-536263-A (GB)
Title: Improvements in or relating to resilient suspensions for vehicles
IPC: B60G17/027
Filed: 1939-11-07
Abstract: 536,263. Vehicle suspensions. HENRY, H. 0., and YOUNG, T. M. Nov. 7, 1939, Nos. 29593 and 2671/39. [Class 108 (ii)] A resilient suspension for a vehicle comprises a spring 46 interposed between the chassis and a wheel or axle, and means rendered operative upon a departure from the static configuration of the chassis and axles to restore automatically the said configuration when the vehicle is set in motion. The spring bears at its top against the inside of the closure 4 of a hollow cylinder 2 telescoping in a cylinder 1, and at its lower end against a piston 43 forming the base of a sleeve 13. A cup-leather 44 gives the piston 43 a tight fit in the lower end of the cylinder 1. The sleeve 13 rides on a fixed column 12 having fixed within it a tube 11. Through the tube 11 slides the hollow lower end 10a of a rod 10, the upper solid part of which moves through the cap of the column 12 and is attached to the closure 4, and terminates in a half-sphere bearing 5 for a locating member. A two-diameter valve 24 slides in the bottom end of the tube 11, and rests on a pneumatically inflated cushion 48 located in a chamber 6 at the bottom of the cylinder 1, the initial pressure imparted to which, by a pump attached to the entry valve 49 determines the effort-deflection characteristic of the suspension. Ports, ducts and channels 11a, 14, 16, 23, 26a, 26b, 33, 34, 36, 38, 39, 45 &c. permit interflow of oil introduced into the cylinders 1 and 2 by way of orifice 47. In action, when first used, the oil is forced by the reciprocating movement of the rod 10 to fill the spaces A and B. The next upward movement of the rod 10 draws oil into the space A and also pumps oil from the space B through the hollow part 10a and the bore of tube 11. When the pressure exceeds that in the cushion 48 by a requisite amount the valve 24 opens to let oil into the chamber 6. Further movement of the valve 24 brings the interior of tube 11 into communication with the oil reservoir, and this prevents further opening of the valve. Continued upward motion of the rod 10 brings a collar 15 thereon above ports 36, and a seepage of oil takes place with damping action. When a load is applied the springs are depressed and the rod 10 sinks relatively to the column 12. The pumping action is repeated, except that release of oil from chamber 6 occurs infrequently, and the accumulating oil passes through bores 40 to the space beneath the piston 43 and gradually raises same. In a modification the valve 24 is located to one side of the piston 43.
Patent GB-1400220-A (GB)
Title: Electrostatographic copying machine
IPC: G03G15/00
Filed: 1972-06-23
Abstract: 1400220 Electro-photographic copiers  RANK XEROX Ltd 25 June 1973 [23 June 1972] 29653/72 Heading G2H An electro-photographic copier, especially for making multiple copies of transparent or opaque engineering drawings, comprises: (a) a document handler 1 for feeding a document fed in at 10 past an exposure slit 11, the handler including means for returning the document and then re-feeding it past the slit to produce multiple copies if required and means for delivering flexible documents to a tray 12 at the front of the machine and stiff documents through a rear exit slot 13; (b) an optical system 7 comprising mirrors 262, 263 and lenses 21, 22, 23 for selecting the required magnification ; (c) a photo-conductive drum 14 and the usual xerographic processing stations 24-27; (d) a copy paper feed arrangement 2 having an inlet 17 for manually fed sheets and a knife 16 for cutting sheets off a roll 15 according to the length of the document; (e) means for selectively delivering the imagebearing copy sheet to a tray 19 at the front of the machine or through a rear exit slot 20. Details. The document handler 1 detailed in Figs. 2, 3 (not shown) includes a double feed prevention barrier (56) and skew detection switches which reverse document feed. The lighting system comprises lamps 260, 261 out of phase to avoid image streaking. The optical system detailed in Figs. 19-23 (not shown) includes a main lens 21 having three positions corresponding respectively to 100%, 70% and 50% magnification, subsidiary lenses 22, 23 which are respectively inserted into the optical path for 100% and 50% magnification and a diaphragm, (Fig. 22) coupled to the main lens for automatic adjustment and manually adjustable for contrast control. The developing system, Fig. 14 (not shown) includes a cascade developing apparatus, a development electrode (225) and a toner meter-  ing system (222). The copy paper feed system 2, 3, 4, 6 is described in great detail with reference to Figs. 5-9, 11, 13 (not shown) and includes provision for removing sheet jams. Copy sheets are removed from the drum 14 by puffers (145), Figs. 15-18 (not shown), the number of puffers made operative corresponding to copy paper width to avoid generating toner clouds. The drum cleaning system (Fig. 14) includes a pre-clean corotron (232), a brush (235) with a flicker bar (236) and a lamp (234). The fixing unit 5 detailed in Fig. 10 (not shown) includes a thermostatically controlled quartz element (152) in a PTFE coated aluminium roller (151) on to which is pumped silicone oil via a wick (157). Figs. 25-36 (not shown), show the control circuit. Figs. 38-40 (not shown), show a billing circuit which generates and counts a number of pulses proportional to the area of each copy sheet used to charge the user. Pre-wired billing cards (K5, K6), (Fig. 40) are inserted to weight the pulse count for 70% and 50% magnification copies to charge proportionately more for smaller copies.
Patent GB-631461-A (GB)
Title: Improvements in and relating to gas radiators
IPC: F24C3/00
Filed: 1946-10-04
Abstract: 631,461. Radiators for heating buildings. COMPAGNIE GENERALE DE GAZ ET D'ELECTRICITE. Oct. 4, 1946, No. 29676. Convention date, Nov. 22, 1945. [Class 64(ii)] In a gas radiator in which upwardly moving hot gases from a burner 5 are led into the spaces 2 between an external metallic envelope 4 and a row of metallic tubes 3 spaced apart and from the envelope, each tube being elongated in crosssection in the direction of the width of the radiator and communicating with the atmosphere at its two ends, a helical partition 7 is wound around each tube. The partitions on two adjacent tubes are wound in opposite directions and are in contact with each other at 11, one being located slightly below the other. The spaces 2 between the tubes and the envelope are closed at the top by a lid 8 and communicate with each other and with a common outlet flue 9. The pitch of the helical partitions decreases progressively in the upward direction.
Patent GB-1415681-A (GB)
Title: Flame-out control in gas turbine engine
IPC: F02C9/28
Filed: 1972-06-24
Abstract: 1415681 Gas turbine engines-relight systems ROLLS ROYCE (1971) Ltd 13 June 1973 [24 June 1972] 29711/72 Heading F1G [Also in Division G3]  Using the designations N = engine shaft speed, T = engine inlet temperature, P = HP compressor delivery pressure, the ratio N/#T for a gas turbine engine is converted to the ratio N/P in accordance with a known normal relationship and the calculated value of N/P is compared with the measured value of N/P. If the latter is greater than the former it indicates that the burner flame has been extinguished and a re-light signal is fed to the igniter.
Patent GB-433912-A (GB)
Title: Improvements in or relating to rubber or rubber articles having roughened or crinkled surfaces and method of producing same
IPC: B29D99/00
Filed: 1934-10-17
Abstract: 433,912. Rubber surfaces. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Seiberling Latex Products Co. ; 5th Street, Barberton, Ohio, U.S.A.) Oct. 17, 1934, No. 29764. [Class 70] [See also Group VII] A method of producing rubber, or rubber articles, e.g. gloves, with a roughened or crinkled surface, consists in partially vulcanizing the rubber to form a skin, treating certain portions of the skin with a liquid swelling agent, e.g. naphtha, benzol, gasoline, and other portions of the skin with fumes or vapour from a swelling agent to provide roughened or crinkled surfaces of different textures, and completing the vulcanization of the rubber. In an example, gloves with roughened grip portions 10 on the fingers, are made by depositing rubber on a form, exposing to sulphur chloride fumes at about 230-240‹ F. for about five to eight minutes, and dipping the finger portions in naphtha for a period depending on the roughness desired. The parts 12 above the naphtha are exposed to the fumes and this produces a slight crinkling. The gloves are dried for from 10-15 minutes at 80‹ F. and given a final cure.
Patent GB-1424376-A (GB)
Title: Stranding elongate elements together
IPC: H01B13/04
Filed: 1973-06-22
Abstract: 1424376 Stranding elements in S-Z fashion SIEMENS AG 22 June 1973 [22 June 1972] 29887/73 Heading D1T Elements 40 are stranded in S-Z fashion by passing them in a group 51 from a first device 59 to a second device 45, and downstream of the first device 59 and upstream of the second device 45 the elements are twisted by first and second twisting means 60, 64 respectively which rotate always in the same direction, the speed relationship between the twisting means 60, 64 changing back and forth between first and second relationships, the changes occuring at intervals no greater than three times the time taken for a part of the elements to travel the distance L between the devices 59, 45. The speed of the twisting means 60 may be constant whilst the speed of the twisting means 64 changes back and forth between first and second values. The speed of the first and second twisting means 60, 64 may change simultaneously from first and second values, respectively, to third and fourth values respectively, and then back again in the time taken for a part of an element to travel the distance L. The ratio between the third and first values and the ratio between the fourth and second values may be equal. In Fig. 1 59 is a stranding die, 45 a guide wheel, 46 a drawing-off pulley and 48 a winding drum. There may be separate motors 61, 65 for driving the twisting devices 60, 64; or a single motor 61 in which case the shaft 68 replaces the motor 65 and carries two magnetically operated clutches 69 and 70 driving the twisting device 64 alternately via belts 72, 66 of different transmission ratio.  The twisting devices 60, 64 comprise rollers (1, 2, 3, 4) Figs. 3 and 4 (not shown) that are displaceable normally of the strands 51, each roller being surrounded by a tyre-like member (27).
Patent GB-472360-A (GB)
Title: Electrically heated shoes for ironing machines
IPC: D06F67/08
Filed: 1936-11-04
Abstract: 472,360. Electrically - heated irons. BEATTY BROS., Ltd. Nov. 4, 1936, No. 29957. Convention date, Dec. 3, 1935. [Class 39 (iii] In an electric ironing-machine of the type comprising a rotating roller supported at one end by a housing and with an electrically heated shoe pressed in contact with it, a number of heating elements are provided in the shoe and one of these elements, which is arranged to heat that part of the shoe which engages the free end of the roller, can be operated independently of the others. For example the free end of the shoe 2 is heated by an element 5 which is independently controlled by a switch 7. The element 4 heating the remainder of the shoe may be switched on when the whole shoe is to be heated by switch 6. In an alternative construction all the elements are put into operation by one switch while the element 5 can be switched on independently by a separate switch.
Patent GB-895282-A (GB)
Title: Improvements in or relating to production of iron
IPC: C21B13/00
Filed: 1958-09-18
Abstract: 895,282. Reducing iron ore. R-N CORPORATION. Sept. 18, 1958 [Feb. 19, 1958], No. 29957/58. Class 72. Iron ore is reduced with a carbonaceous reducing agent, without fusion, to produce finely divided iron containing combined and dissolved carbon, the product being slowly cooled from above 730‹C. to below 650‹C. but not below 150‹C. at a rate not exceeding 165‹C. per minute to prevent the formation of martensite in such amount as would adversely effect the mutual adherence of the iron particles on being compressed together. As shown, kiln 10 is supplied continuouslywith feed 1 comprising ore, limestone and coke, and the kiln is heated by flame 3. After 12 hours reduced ore at 1050‹C. to 1150‹C. is passed through conduit 16 to cooler 18 comprising a large steel drum rotated at 1À5 r.p.m. in water bath 26. The material 5 cooled to 540‹C. to 480‹C. is discharged through shoot 24 which opens below the surface of water 30 in quench tank 32 from which it is removed by rake 34.
Patent GB-455740-A (GB)
Title: Improvements relating to electric conductors
IPC: H01B3/44
Filed: 1935-10-31
Abstract: Conductors such as electric cables are coated with or insulated by a material comprising a polymeric acrylic acid or derivative thereof that has been obtained by polymerizing to such an extent that the polymer is no longer soluble in the usual solvents but only swells therein.  Softening agents, swelling agents, soluble polymers, cellulose esters, polystyrene or other polymeric arylolefine or fillers may be added to the polymers.  The compositions may be vulcanized.  A preferred composition includes polymerized ethyl acrylate, diamylphthalate, talc, active gas black, sulphur and b -naphthol.  The Specification as open to inspection under Sect. 91 refers in general to the materials.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1157623-A (GB)
Title: Improvements in or relating to Scribing Tools.
Inventor: GORTMANS NEVILLE ALFRED
IPC: B25H7/04
Filed: 1965-07-15
Abstract: 1,157,623. Engraving. N. A. GORTMANS, and L. A. RAYSKI. 13 Oct., 1966 [15 July, 1965], No. 30165/65. Heading B6J. [Also in Division B4] In a scribing tool comprising a body member 1 provided adjacent one end with a downwardly projecting chuck 3 carrying a scriber 4, the body is pivoted at 11 to a guide member 2 which is held by an operator for moving the tool on a surface S to be scribed, the guide member incorporating a spring 10 acting on the body member so as to urge the scriber against the surface S, the scriber being mounted for eccentric rotation on one end of a rotatable shaft 5 mounted in the body member and the shaft having at its other end a part 23 which is engageable by clamping means 24 mounted on the body member to hold the scriber against rotation about its axis. The clamping means 24 comprises an arm 25 which is pivoted on a support 26 mounted on the top of the body member 1. One end of the arm 25 is bifurcated and has a clamping member 27 pivoted between the prongs 25a thereof, the clamping member having a recess 28 in its underside which is shaped to receive the cone shaped member 23. The clamping member 27 is biased against the cone-shaped member 23 by a compression spring 29 disposed between the arm 25 and the top of the body member. The clamping means is normally held out of engagement with the member 23 by a catch 31. In order to provide for lifting the scriber 4 clear of the surface S without lifting the guide member 2 therefrom, a lever 32 is pivoted intermediate its ends at 33 to one of the side pieces 13 of guide member 2 and has its end 34 connected to the body member 1 by a hook 35 which is secured to the lever 32 and hooked under the member 1. By depressing the end 36 of the lever remote from the hook 35 the scriber 4 is lifted off the surface S. A magnifying glass is supported on the guide member to enable the operator to view the cutting point. The end pieces 14, 15 of the guide member 2 are each provided with a hole for receiving a lug (not shown) on one end of a radius rod whereby the tool may be used for scribing circles.