baber/WOPTO huggingface dataset:
Patent GB-594471-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/10
Filed: 1945-01-15
Abstract: 594,471. Suction cleaners. KATZ, L. NAMENYI-. Jan. 15, 1945, No. 1229. [Classes 8 (i) and 8 (ii)] A dust disposal device for a vacuum cleaner comprises a combustion .chamber, means for feeding the dust collected by the cleaner into the chamber with or without means for consolidating it prior to its entry into-the chamber, and means for igniting the dust in the chamber. The combustion chamber 10 containing an axially disposed sheathed electric heater 11 has an opening 12 in periodic register with a cavity 16 in a rotatably mounted trap valve 14. A passage 15 connects the pressure side of the cleaner exhauster with the trap in which the dust is caught and consolidated, and is provided with a byepass through which' dust-laden air passes to a filter during the time when the valve is turned to the chamber 10. The gaseous products of combustion pass from the chamber 10 to atmosphere by means of a passage 17 and a deodorizing unit 18. Ash is compressed against a wall 21 of the chamber 10 by an oscillating blade 20 linked to the rotary valve by a slotted arm engaged by a pin on a disc carried by the valve shaft and driven by a pulley engaging the cleaner brushes.
Patent GB-1534151-A (GB)
Title: Polymerisation process
IPC: C08G69/16
Filed: 1976-01-12
Abstract: 1534151 Polyamides BRITISH PETROLEUM CO Ltd 12 Jan 1976 [13 Jan 1975] 1275/75 Heading C3R [Also in Division B1] Microwave radiation of 900 to 10,000 MHz is used to heat and accelerate the polymerization of polyamide-forming monomers (aminoacids, lactams or diacid+diamine), preferably in conjunction with conventional catalysts, e.g. NH 4  or metal hydrophosphate, H 3 PO 4 , triphenyl phosphite or p-toluene sulphonic acid.
Patent GB-270640-A (GB)
IPC: C22C27/00
Filed: 1927-01-15
Abstract: 270,640. Kropf, A. May 10, 1926, [Convention date]. Addition to 264,528. Alloys.-The alloys of high melting point described in the parent Specification are modified by replacing the molybdenum wholly by tantalum, the products containing 5-80 per cent of tantalum and 0.8-5 per cent of carbon. Up to a total of 25 per cent of one or more of the following elements may be present : vanadium, uranium, titanium, zirconium, silicon, cobalt, chromium, nickel, iron, and manganese; or by starting with an alloy of chromium and tantalum and adding tungsten carbide thereto, the product may contain up to 40 per cent of chromium. In some cases the charge may include oxides of some form of the metals which. are reduced in the presence of excess of carbon.
Patent GB-672760-A (GB)
Title: A device for polishing, brushing, scrubbing or like treatment of floors and other surfaces
IPC: A47L11/206
Filed: 1950-01-18
Abstract: 672,760. Floor cleaning machines; brushes. TRIGGS, W. W. (Electrolux Corporation). Jan. 18, 1950, No. 1299/50. Classes 19 and 138 (i). A device for polishing, brushing, scrubbing or like treatment of floors or other surfaces, comprises a rotatable brush affixed to a sleeve mounted on a driving hub, and guide means operatively connecting the hub and sleeve. and causing relative axial movement of the hub and sleeve upon relative rotation thereof, to lift the brush in response to friction between brush and floor. The machine, Fig. 1, comprises a double chambered housing 10 formed by a casting 12 defining an upper turbine chamber 20 and a lower brush chamber 30. The chamber 20 is partially sealed by a removable cover 22 providing an inlet opening 24 and an outlet opening 26. Fitted in the opening 26 is a flexible adapter 28 which is connectible to the wand or handle 90 of a conventional vacuum cleaner by means of a cam operated clamping device 29. Mounted in the chamber 20 is a turbine wheel 70 which drives a pinion 77 meshing with a gear wheel 46 provided with an elongated hub 44. An annular brush 32 is detachably mounted on a sleeve 42 by means of conventional pins 34 and spring clips 36. The sleeve 42 is mounted on the hub 44 and is provided with inclined slots 52, Fig. 3, which engage with pins 50 projecting from the hub. Spring biassing means 54 are connected between the pins 50 and extension lugs 56 of the spring clips 36. When no driving torque is applied the springs 54 retain the sleeve 42 and brush 32 turned relatively to the hub 46 in the position shown in Fig. 3, the pins 50 occupying the upper ends of the slots 52 and the brush is urged downwardly against the floor. When the turbine is rotated by suction through the wand 90 the friction between the.brush and floor causes the brush and sleeve 42 to lag slightly behind the rotation of the hub 44. The pins 50 then ride in the slots 52 overcoming the tension of the springs 54 so that the brush is raised to lessen the friction between it and the floor. This allows part of the weight of the machine to be taken by stationary brush bristles 60 formed around a flange portion 14 of the brush chamber 30. A substantially constant brush speed and torque transmission are thereby achieved and stalling action is prevented. A rubber bumper ring 62 extends round the casting 12 to prevent damage to furniture.
Patent GB-1136672-A (GB)
Title: Containers
IPC: B65D23/02
Filed: 1967-01-10
Abstract: 1,136,672. Epoxy resin compositions. PPG INDUSTRIES Inc. 10 Jan., 1967 [17 Jan., 1966], No. 1301/67. Heading C3B. [Also in Division B2] A coating composition comprises (a) from 30 to 80 parts by weight of a polyglycidyl ether of a polyhydric compound having an epoxide equivalent between 100 and 400; and (b) from 20 to 70 parts by weight of an epoxy ester of dimerized fatty acid or mixture of acids having an epoxide equivalent between 350 and 950; the composition is cured with from 10 to 30% based on the total weight of (a) and (b), of a non-volatile polyfunctional aromatic amine catalyst. The catalyst is blended with a mixture of the polyglycidyl ether and the epoxy ester, and the composition cured on the surface to which it is applied by heating, e.g. at 350 to 500 F. for 2 to 30 minutes. An accelerator may be used to accelerate the curing. Examples of polyglycidyl ethers, epoxy esters, catalysts and accelerators are given. The polyglycidyl ether may have an epoxide equivalent of 175 to 210, and the epoxy ester may have an epoxide equivalent of 390 to 470. The composition may contain equal parts of the polyglycidyl ether and the epoxy ester, and the amount of the catalyst is 20% of the total weight of the polyglycidyl ether and epoxy ester. The polyglycidyl ether may be polyglycidyl ether of a polyhydric alcohol or phenol, e.g. bis-(4-hydroxyphenyl)- 2,2-propane, having an epoxide equivalent between 175 and 210 and a molecular weight between 350 and 400. The epoxy ester may be the ester of dimerized linoleic acid and a reaction product of epichlorohydrin and bis-(4- hydroxyphenyl)-2,2-propane. The catalyst may be meta-phenylene diamine or 4,41-methylene dianiline, or a mixture thereof; or an eutectic mixture of meta-phenylene diamine and 4,4<SP>1</SP>- methylene dianiline containing a minor amount of 1,2-epoxy-3-phenoxypropane.
Patent GB-152907-A (GB)
Title: Improvements in or relating to gun sights
IPC: F41G1/28
Filed: 1920-01-15
Abstract: 152,907. Payne, O. V., and Auto- Ordnance Corporation. Jan. 15, 1920. Sights.-Relates to backsights of the kind having a rotary sighting-member eccentrically mounted for range adjustment, and provided with a sighting-groove round its periphery, and consists in making this groove spiral or oblique in form to give an automatic drift correction. In the form shown in Fig. 1 the base 1 is adapted to be traversed by a, screw 6 for wind correction in dovetailed guides in the breech-frame R, and carries supports 12, 13 in which is carried an elevating member 16 capable of being rotated through at least 180 degrees and of being clamped in any position by a lock nut 23. Connecting the bearing portions 17, 18 of this member and mounted eccentrically thereon is a cylindrical sighting member 21 having a sighting groove 22 arranged spirally or obliquely round its periphery to give an automatic drift correction. The member 21 is painted or roughened to render it non- reflecting. In a modification, shown in Fig. 7, the elevating and sighting members are combined in a single cylindrical member 33 eccentrically mounted in bearings 30, 31, and rotatable by turning a head 34 having indentations 38 co-operating with a spring-detent 35.
Patent GB-850665-A (GB)
Title: Improvements in or relating to belt-fastening machines
Inventor: POTTER JOHN JAMES
IPC: F16G3/00
Filed: 1958-01-15
Abstract: 850,665. Belt fastenings. HAYDEN-NILOS Ltd. Sept. 12, 1958 [Jan. 15,1958],No. 1388/58. Class 80 (1). In a belt fastening of intermeshing wire hook type each hook 30, four of which are shown in Fig. 6, comprises two bent and pointed upper ends 48 and two straight lower lengths interconnected by a bridge 51, the hooks being individually clinched into the belt by a handoperated jaw unit 20, Fig. 1, which is automatically by a pawl 46 moved along a comb bar 19 holding the hooks, the jaw unit comprising a fixed foot 52, Fig. 3, which supports the lower hook lengths, an upper jaw cheek 26 which forces the pointed ends 48 through the belt, and a lower jaw cheek 29 which has shaped recesses to receive the ends 48 after penetration and turn them over the bridge 51. The recesses lie to one side of the cheek 29, Fig. 5 (not shown), so that as the points of one hook are being turned over additional pressure is exerted on the preceding, already-inserted, hook. The jaw levers are connected through toggle links to a slider 32 linked to oppositely movable hand levers 38, 39. The hand levers are detachable from stubs 40 to allow flat fold. ing for storage (Fig. 1) but are anchored by chains. The slider 32 actuates the pawl 46, which engages a rack bar 18 supporting the jaw unit 20. The cheek 26 is adjusted by a screw 27 to suit the belt thickness, and both cheeks are serrated and may be replaceable to suit the size and type of wire hook. The rack and comb bars 18, 19 extend between plates welded to tubular rails 1, 2, Fig. 2. Standards 13 on the rails 1 carry a slidable bar 11 of inverted U- section which is actuated through springs 15 and levers 14 (Fig. 1) to clamp the belt against a fixed bar 10. The flat face of the comb bar 19 is cut back to form a lip receiving a wire 56, Fig. 6, connecting a row of hooks, and is cut away at 64, Fig. 1, to allow a wide belt having some already inserted hooks to be moved transversely of the machine for the insertion of further hooks. In a modified machine dispensing with the tubular frame and belt clamp a jaw unit 65, Fig. 9, having a fixed foot 71 and two movable jaws 66, 67 has a recess to receive a removable comb bar 70. The comb bar is temporarily clamped to the belt in the manner described in Specification 810,935. A pawl (not shown) engages teeth on the bar 70 to traverse the jaw unit after each clinching operation. According to the Provisional Specification the traversing pawl may be separately operated, and the jaw unit is accurately positioned by a stop which bears against the next hook to be inserted. Specifications 810,933 and 850,666 are referred to.
Patent GB-161320-A (GB)
Title: Improved construction of link for ammunition belts of machine guns
IPC: F42B39/08
Filed: 1920-01-16
Abstract: 161,320. Prideaux, W. de C. Jan. 16, 1920. Cartridge belts. - Relates to metal-link belts in which the cartridges form the hinge pins and in which the links each comprise clips A, C formed on opposite sides of a bridgepiece K, and consists in bending the free ends of the clips along and over the bridge-piece in order to close the clips. Fig. 1 shows a blank from which a link as shown in Fig. 2 is formed. Fig. 4 shows a modification in which the bent-over ends pass through holes L in the bridge-piece. The blank may have webs N, Fig. 9, which are arranged to lie flat against the bridge-piece K as shown in Fig. 8. The bridge-piece may be strengthened by welding on a separate piece or by folding upon itself.
Patent GB-999669-A (GB)
Title: Cylindrical bladed rotors
IPC: F28D11/02
Filed: 1962-01-15
Abstract: 999,669. Transverse-flow fans. I. LAING. Jan. 15, 1962 [June 21, 1961], No. 1488/62. Heading F1C. [Also in Divisions B3 and F4] The rotor of a transverse-flow fan comprises a plurality of hollow blade elements arranged in a ring about an axis, the blade elements being formed as integral projections on one or more bands wound helically about said axis. As shown in Fig. 2 a helical band 20 is formed with projections 21 which are frusto-conical and of acrofoil cross-section and are aligned and secured at 23 to the projections of the adjacent coil of the helix. The rotor may alternatively be formed from two helical bands, as shown in Fig. 5, of channel-shaped cross-section and having projections 54. The bands are connected together along their edges 55, 56 to form a helical duct 57 and the projections of adjacent coils are seemed together to form longitudinal fan blades. In a further embodiment (Fig. 9, not shown) the helical duct is formed by securing together a channel-shaped and a flat band. The bands may be corrugated or ribbed. Specifications 886,376; 999,666; 999,667 and 999,668 are referred to.
Patent GB-671558-A (GB)
Title: Method of finishing gears and gear finishing cutter
IPC: B23F19/06
Filed: 1950-01-19
Abstract: 671,558. Gear - finishing. NATIONAL BROACH & MACHINE CO. Jan. 19, 1950 [Feb. 7, 1949], No. 1503/50. Class 83 (iii). Milling-cutters.-A gear-finishing cutter comprises a toothed gear-like tool in which the corresponding sides of all the teeth have a common pressure angle and opposite sides of each tooth have different pressure angles. The cutter is adapted to finish gears such as 24, 26, Fig. 1, in a shaving operation with a crossedaxis angle of 3-30 degrees. The pressure angles differ by 10 degrees or more and the cutter may be of conventional serrated type or have cutting-edges at one end only of the teeth which may or may not be backed-off. In the latter case, the cutter C is set up as shown in Fig. 3. If a serrated cutter is used several reciprocations are completed while one member is positively driven. If the single-edge cutter is used, one traverse is made with both members positively driven.
Patent GB-980587-A (GB)
Title: Pressure regulating valves
Inventor: KEMP KENNETH ALBERT WALTER
IPC: G05D16/10
Filed: 1963-01-14
Abstract: 980,587. Valves. C.A.V. Ltd. Dec. 23, 1963 [Jan. 14, 1963], No. 1537/63. Heading F2V. Fluid pressure at an outlet 5, of a stepped cylindrical chamber 2, is maintained at a substantially constant predetermined proportion of the pressure at an inlet 4 thereto. Fluid from the inlet 4 passes, via port 10 in constant communication therewith, to a fluid bore 7 of a piston 6 containing a spring-loaded plunger 8 whereby, upon an increase of inlet pressure, the piston 6 and plunger 8 are forced apart to open ports 12 whereby leakage to an outlet 3, via longitudinal grooves 13 and a circumferential groove 14, is decreased until the inlet pressure acting upon piston 6 within bore 7 is balanced by the lower pressure acting, via grooves 13, at outlet 5 over a larger area of the piston 6; the ratio of outlet to inlet pressures being determined by the relative cross-sectional areas of the piston 6 and plunger 8. A screw 11 restricts angular movement of the piston 6.
Patent GB-1144516-A (GB)
Title: Novel oximes and a process for the manufacture and conversion thereof
IPC: C07D243/24
Filed: 1967-01-11
Abstract: 1,144,516. Oximes and conversion to benzodiazepine derivatives. F. HOFFMANN LA ROCHE & CO. A.G. 11 Jan., 1967 [19 Jan., 1966], No. 1581/67. Heading C2C. Compounds of the general formula (wherein R<SP>1</SP> and R<SP>2</SP> each represent a C 1-7  alkyl group or together represent a lower alkylene, aza(lower alkylene), N-(C 1-7  alkyl)aza(lower alkylene), oxa(lower alkylene) or thia(lower alkylene) group, R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> each represent a halogen atom or a CF 3 , NO 2 , CN, C 1-7  alkyl or C 1-7  alkoxy group, R<SP>6</SP> and R<SP>7</SP> each represent a hydrogen atom or a C 1-7  alkyl group, R<SP>10</SP> represents a C 1-7  alkyl group or an aralkyl group, Y<SP>(n-)</SP> represents the anion of an acid having n displaceable hydrogen atoms or, where n is 1, a hydroxide ion, and the broken lines denote optional substituents) are prepared by either treating a quinazoline derivative of the formula (wherein X<SP>(n-)</SP> represents the anion of an acid having n displaceable hydrogen atoms) with an inorganic base or reacting a halide of the formula (wherein Hal represents a halogen atom) with NR<SP>1</SP>R<SP>2</SP>R<SP>10</SP>, or exhaustively alkylating an amine of the formula (wherein R<SP>11</SP> and R<SP>12</SP> each represent a hydrogen atom or a C 1-7  alkyl group or together represent a lower alkylene, aza(lower alkylene), N-(C 1-7  alkyl)aza(lower alkylene), oxa(lower alkylene) or thia(lower alkylene) group) with an alkylating or quaternizing agent and, in any case where required, converting any base obtained into a salt or any salt obtained into the base or a different salt. Oximes in which Y<SP>(n-)</SP> represents a hydroxide ion may be converted into benzdiaz[1,4]epinone-(2) 4-oxides of the general formula by heating. The lower alkylene groups have the general formula (wherein a and b each represent a hydrogen atom or a C 1-7  alkyl group and may be the same or different, and p is 2-6) and the aza(lower alkylene), N-(C 1-7  alkyl)aza(lower alkylene), oxa(lower alkylene) and thia(lower alkylene) groups have the general formula (wherein a, b, c and d each represent a hydrogen atom or a C 1-7  alkyl group and may be the same or different, Z represents an oxygen or sulphur atom or an NH or N-(C 1-7  alkyl) group and m and q are each 1-4, provided that the sum of m and q is not greater than 5). Compounds (I) possess cardioactive or antibacterial properties and may be administered in the form of pharmaceutical preparations containing them, with or without other (unspecified) active ingredients, together with a carrier.
Patent GB-899215-A (GB)
Title: A switch for use with electric starting mechanism for internal combustion engines
Inventor: SEILLY ALEC HARRY
IPC: H01H25/06
Filed: 1960-01-18
Abstract: 899,215. Press-button retractive switches. C.A.V. Ltd. Jan. 18, 1961 [Jan. 18, 1960], No. 1696/60. Class 38 (5). Depression of a push-button 4 against a spring 5 to cause a contact 6 to bridge fixed contacts 7 also compresses a spring 16 by allowing a pistonrod 10 to ride inside the tubular stem 9. The spring 16 then reasserts itself, slowing moving piston 11 along its cylinder until the wider part 15 is reached, whereupon contact 12 bridges fixed contacts 13 with a snap action and at a predetermined time after the bridging of contacts 7. Inward movement of piston 11 when button 4 is not depressed is limited by a pin 17 in the piston - rod 10 engaging a longitudinal slot in the stem 9. This slot has a short circumferentiallyextending part at its inner end (Fig. 3, not shown) so that when the button 4 is rotated slightly the pin 17 engers this part of the slot and relative axial movement between rod 10 and stem 9 is prevented. Depression of button 4 in this condition puts a direct thrust on the piston 11 and contacts 13 are quickly bridged. Contact 6 is so disposed that it does not engage contacts 7 when button 4 is thus turned.
Patent GB-902339-A (GB)
Title: Refractory brick and furnace construction
IPC: F27D1/16
Filed: 1961-01-16
Abstract: 902,339. Refractory roofs. LAVINO & CO., E. J. Jan. 16, 1961 [Nov. 16, 1960], No. 1705/61. Class 51 (2). A basic refractory brick 30, for use in a furnace roof has separate metallic plates 40, 41, 60, 61 secured on each side face, of which one plate 60 has short embossments 64, 65 occupying less than 20% of its length at its hot end and spaced from the brick surface. The longitudinal plates 40, 40<SP>1</SP> are plane except for lateral tabs 26, 26<SP>1</SP> which overlie the cold end of the bricks and have side edges 47 and bottom edges 45, respectively, set back from the corresponding arrises 48 and 38, this latter feature appearing also on the other plates. In the assembled roof a lateral plate 60 with embossments 64, 65 adjoins a plane plate 61<SP>1</SP>. The bricks have a substantially square configuration and are supported between plates 20, Fig. 1, suspended from joists 17 hung on swivel hangers 15 by pivot plates 16.
Patent GB-1309222-A (GB)
Title: Control apparatus for an electric timepiece
IPC: G04C11/00
Filed: 1971-01-13
Abstract: 1309222 Electric timepieces MLLER & CO AG 13 Jan 1971 [16 Jan 1970] 1711/71 Heading G3T In an electric timepiece (e.g. a watch) when a rotor 1 Fig. 1-carrying permanent magnets 3 rotates, the magnets 3 co-operate with magnetic material 6 on a reed 4 causing the reed to oscillate. Signals at the oscillation frequency are produced by Piezo-electric crystals 7, 7' which may be stuck onto the reed by electrically conductive adhesive, the opposed faces of the crystals being electrically inter-connected through the reed in the case of a metal reed or through a metal coating thereon if the reed is of synthetic plastics. A drive coil 11 is connected to a battery 9 through the emitter/collector circuit of a transistor 10 and is in parallel with crystal 7'. A pick-up coil 12 is connected in the base/emitter circuit of transistor 10 and in parallel with crystal 7 and has pulses induced therein by movement of the rotor magnets relative thereto. The motor speed will stabilize at a constant speed depending upon the oscillationfrequency of the reed, which will begin to oscillate at its natural frequency after a short time. The rotational speed is stabilized still further by synchronizing pulses from the Piezo-electric crystals. A timing gear train coupled to time indicating means may be driven by the reed via a pawl of wire 5 attached to the reed and engageable with a ratchet wheel 15. In an alternative embodiment Fig.2 (not shown), the coil winding 12 is omitted and the reed 4 is constituted by a Piezo-electric crystal having magnetic material on its free-end - Also the rotor shaft drives directly the timing gear train. There may be two reeds mounted side by side in a common support, one of which may be formed of Piezo-electric crystal.
Patent GB-126672-A (GB)
Title: Improved Engine Valve.
Inventor: BUGATTI ETTORE
IPC: F01L3/16
Filed: 1917-02-02
Abstract: 126,672. Bugatti, E. March 6, 1916, [Convention date]. Cooling.-To cuol the spindle of an engine valve, the spindle is made with a bore or two diameters so as to act as a pump to circulate air or oil through the spindle. In the form shown in Fig. 1, the hollow spindle has a lower part h adapted to work in a guide e and an upper reduced part adapted to carry the spring abutment m. The upper part has air holes p and is fitted with a copper tube i extending nearly to the head of the valve. The copper tube is provided externally with a series of longitudinal ribs j, the passages so formed communicating with holes o in the shoulder of the spindle. During the opening movement of the valve, air is drawn into the chamber r through the ports p or through special inlet ports s, and is ejected through the ports p as the valve closes. In a modification, the ports p and s lead to an oil reservoir.