baber/WOPTO huggingface dataset:
Patent GB-1468429-A (GB)
Title: Zig-zag sewing machine
IPC: D05B3/02
Filed: 1974-06-26
Abstract: 1468429 Zig-zag sewing machine PODOL MEKHANICHE ZAVOD IM M I KALININA 26 June 1974 28407/74 Heading D1G In a zig-zag sewing machine each pattern cam 28 in a stack has its own follower, and to select the desired pattern the appropriate follower is advanced into contact with its cam by rotating one of the selector wheels 44 or 68 (Figure 5). One wheel (44) controls six followers, the other wheel controls the remainder, and combination patterns can be selected by partly advancing two followers to contact simultaneously two cams. Each cam follower 29 rotates freely about a respective eccentric bush 43 fixed to an axle 35, and each bush is positioned so that its direction of greatest radius differs from that of the other bushes, so that by rotating the axle each bush in turn may be pointed at the cams, thus causing the corresponding cam follower to advance towards its cam. The motion of the cam follower in contact with the selected cam is transmitted to a bar 74 (Fig. 5) carried by a lever 73 which oscillates and pushes a pin 75 against an L-section member 97 pivoted on a pin 94. The movement of the member 97 is transmitted through a roller 85 to a bell crank lever 99 and thence to the needle-bar frame 10. To alter the bight of the zig-zag the roller 85 is moved along the L-section member so that the mechanical advantage of the member 97 is altered. An adjusting wheel 80 connected to a crank 83 is provided for this purpose. To select a pattern cam in the first six a spring biassed ratchet and pawl catch 59 is released manually and the axle 35 rotated, using the wheel 44. To select one of the other cams the other catch 59a is released and wheel 68 is rotated. This wheel has a rod 71 connecting it directly with the remaining cam follower bushes 69 which are free to rotate about the axle 35 and are rotated only by the rod 71. In another embodiment (Figure 3) the axles are horizontal rather than vertical but the mechanical coupling between the cams and the needle bar guide is similar to that of the first embodiment.
Patent GB-152033-A (GB)
Title: Spring tyres for cycles, motor cars, railway wheels and the like
IPC: B60C7/14
Filed: 1920-10-07
Abstract: 152,033. Andersen, F. Oct. 8, 1919, [Convention date]. Spring wheels with continuous outer rigid ring and metal springs other than helical and volute springs. -The rigid arm A has a flange C which passes through a slot in a two-part casing D and bears on a resilient ring K, of slightly less diameter, lying within the casing. Bearing balls M and leather linings L may be provided; the flange and slot may be replaced by a series of projections and apertures ; and the casing may be detachably secured to the wheel by a ring H and bolts G.
Patent GB-633464-A (GB)
Title: Improvements in crates, cases and like containers
Filed: 1947-10-24
Abstract: 633,464. Knock-down boxes. GILL. B. T., and KEMP, H. Oct. 24, 1947, Nos. 28441, 32776 and 32777. [Class 18] A crate comprises top and bottom frames a, b connected by the members h and having corner uprights providing guide channels for receiving detachable slats f and panels g forming the sides and ends of the crate. The uprights may comprise inner and outer angle members d, c, the members d having lugs d<SP>1</SP> to receive the tie members h and being slightly shorter than the members c. The frames are drilled and countersunk to receive the heads of the members h and securing screws h<SP>2</SP>, the holes being offset to cause the members d to be drawn outwards against the members f, g by the entry of the heads of the members h, h<SP>2</SP> into the holes. The holes may be drilled in gussets secured to the frames and the members c, d, may be slit or notched at the edges to cause portions to engage the members f, g. The lugs d<SP>1</SP> may be dispensed with and the members h may engage the re-entrant angles of the members d. A bottom may be formed by slots supported on the frame b and a handle k may be fitted. The corner uprights may be integral and extruded in light alloy and may have stepped channels to accommodate various thicknesses of slats. A lid and partitions may be attached. The first Provisional Specification states that the tie rods may be internally threaded tubes and describes rotatable cam section sleeves or tie rods or lateral screw connections between the members c and d for tightening the slats or panels in the corner uprights. It also states that screws engaging threaded lugs on the uprights may replace the tie rods.
Patent GB-939285-A (GB)
Title: Intermediate-frequency neutralisation of self-oscillating mixer stages
IPC: H03D7/08
Filed: 1961-08-04
Abstract: 939,285. Valve frequency changing circuits. STANDARD TELEPHONES & CABLES Ltd. Aug. 4, 1961 [Aug. 11, 1960], No. 28470/61. Class 40 (6). In a grounded-grid triode self oscillating mixer stage, feedback at I.F. from the output circuit ZF to the input between grid and cathode is neutralised by completing the network between grid, cathode and anode and the I.F. circuit ZF to form a double bridge network including a resistor R KF  and capacitor C KF , Fig. 2, connected between cathode 5 and point 4. Alternatively, Fig. 3, if the grid is not at earth potential at I.F. frequency, but is connected to earth via a capacitance Cgm the connection between 4, 5 may be omitted, the balance of the bridge then involving the inductance Ltg4 and the grid-earth capacitance Cgm.
Patent GB-688185-A (GB)
Title: Improvements in or relating to electric cables
Inventor: COX JAMES RICHARD
IPC: H01B7/29
Filed: 1951-12-07
Abstract: Heat - resistant electrical insulation comprises a plasticized composition consisting of talc, mica, or like silicious substances, and an organo-silicon oxide polymer.  A suitable composition consists of 25 parts by weight of organo-silicon oxide polymer loaded with silica and 75 parts by weight of talc. Inorganic fillers may be added to colour the composition.  The composition may be mixed in a conventional mill or internal mixer, and during mixing the temperature is raised to at least 100 DEG  C. to remove a proportion of the volatile matter from the polymer.
Patent GB-781728-A (GB)
Title: Improvements in or relating to condensing apparatus for vacuum treatment plant
IPC: B02B1/00
Filed: 1954-10-05
Abstract: <PICT:0781728/III/1> In apparatus for drying, evaporating or cooling, comprising two vessels 1 and 2 which are to be operated at different degrees of vacuum, the vessels are connected by pipes 8 and 9 to contact-condensers 6 and 7 provided with barometric legs 10 and 11 respectively, which are arranged and provided with conduit means whereby the water discharged from condenser 7 at lower pressure (e.g. 20 mm. Hg.) is automatically transferred by atmospheric pressure to the condensing space of condenser 8 at higher pressure (e.g. 35 mm. Hg).  The material to be treated is passed in series through vessels 1 and 2, via locks 3, 4, 5.  Barometric leg 11 dips into jacket-pipe 13, the lower end of which is connected by pipe 15 to condenser 6. The upper end of pipe 13 is open to the atmosphere via a widened portion 14.  Vessel 12 and pipe 13 are filled, by means of inlets 18 and 19, with water up to overflow outlets 20 and 21.  Vessel 1 and condenser 6 are evacuated by pump 16; while vessel 2 and condenser 7 are evacuated by pump 17. Water is fed to the condensers via inlets 23 and 24.  In certain cases no fresh water at all has to be added through inlet 23, for the water introduced through pipe 15 is sufficient to effect complete condensation in condenser 6.  The dimensions of pipes 11 and 13 are such that water from the annular space between the two pipes fills pipe 11 and pipe 15 with water to a height of 11 metres above the level in pipe 13, without the lower end of pipe 11 becoming uncovered in pipe 13.
Patent GB-406952-A (GB)
Title: Duplex acknowledgment cards with transparent envelopes
IPC: B65D27/04
Filed: 1933-10-18
Abstract: 406,952. Envelopes &c. STORER, R. H., 500, Bealty Street, Vancouver, Canada. Oct. 18, 1933, No. 28881. Convention date, Oct. 18, 1932. [Class 146 (ii).] A transparent envelope 8, 9 receives a duplex acknowledgment card 4, 5, and both the envelope and card are perforated at 7 whereby the assembly can be torn into two parts, to provide a protected record, e.g. for burial wreaths &c. The envelope is preferably waterproof and has a sealed flap 11 and a closure flap 10. A hole 6 is made through the assembly at the sealed end where the assembly is to be attached by string to an article such as a floral tribute.
Patent GB-1460929-A (GB)
Title: Moulding apparatus
IPC: B29B7/00
Filed: 1974-07-01
Abstract: 1460929 Injection moulding of foamed plastics SCHLOEMANN-SIEMAG AG 1 July 1974 [7 July 1973] 29016/74 Heading B5A The surface of a mould part 1 which, together with one or more other mould parts, defines the wall of a mould cavity for the injection moulding of a thermoplastics foam material, is provided with heating means in the form of a metallic layer 5 e.g. of copper through which electric current is passed. A layer 4 of electrically and thermally insulating material is applied to the mould surface by sintering, and a covering layer 6 e.g. of ceramics is provided. Such heating provides a smooth surface on the moulded article.
Patent GB-364035-A (GB)
Title: Improvements in valves
IPC: F16K51/02
Filed: 1930-09-27
Abstract: 364,035. Valve closure members. ILES, G. B., Gap House, Broadstairs, Kent. Sept. 27, 1930, No. 29017. [Class 135.] A four-way valve device particularly adapted for actuation by fluid pressure and for use in automatic piano players has a valve member in two parts 11, 11a capable of movement as a whole to close alternately ports in seats 10 at each end of the valve chamber 3 and also capable by the movement apart of its components of closing both ports while opening a third communication through its own interior. The Figures show the application of the invention to a fluid actuated valve for a piano player. The component 11 controls the connection between the valve .chamber 3 which is connected to the pneumatic bellows for striking the note and a vacuum conduit 1 and is actuated by a differential diaphragm 8, 9. The component 11a which is actuated by a diaphragm 6a alternately connects the valve chamber with a second vacuum conduit 2 and with a vertical conduit 11b leading to atmosphere. This conduit may be replaced by a slide valve or flexible tubes arranged horizontally. The actuating chambers 5, 6 are connected by pipes 18b, 17e and an auxiliary valve device A to pipes 18a, 17a leading to holes 18, 17 in the tracker bar 13. The auxiliary valve comprises a pair of diaphragm valves 14, 16a arranged in series in the conduit 17a, 17e, the valve 14 being closed when the hole 18 is exposed and the valve 16 being open when the chamber 15 is connected to vacuum by a slide actuated by the admission of air through an accenting perforation in alignment with the accenting note. With the valve 16a closed, as the holes 17, 18 are exposed the component 11 is moved downward to close the air conduit 11b and connect the valve chamber to conduit 1. When the valve 16a is open, as the hole 17 is exposed the component 11a is moved upward to close the passage 11b and connect chamber 3 to vacuum conduit 2 and as the hole 18 is exposed the valve moves as a whole to connect chamber 3 to conduit 1.
Patent GB-448851-A (GB)
Title: Improvements in and relating to chloro-derivatives of aromatic isoalkyl hydrocarbons
IPC: C07C17/12
Filed: 1934-10-10
Abstract: Chloro-derivatives of isoalkyl aromatic hydrocarbons, in which chlorine is attached only to one or more of the carbon atoms connected with the intermediate CH group of the isoalkyl side chain and in which the said group remains, are manufactured by reacting upon the said hydrocarbons with gaseous chlorine at a temperature in the neighbourhood of the boiling point of the hydrocarbon and with the employment of metals acting as chlorinating catalysts or chlorine carriers.  The products possess antiseptic, bactericidal and fungicidal properties.  In examples: (1) chlorine is passed into isopropylbenzene at 153 DEG  C. in the presence of aluminium powder, yielding b -monochlorisopropylbenzene; (2) as in (1) but using as catalyst a powdered mixture of metallic nickel, cobalt and copper, and continuing the chlorination until b  - b  - dichlorisopropylbenzene is formed; (3) chlorine is passed into isobutylbenzene at 169--170 DEG  C. in the presence of a catalyst as in (1) or (2) to produce g -g -dichlorisobutylbenzene.
Patent GB-1382022-A (GB)
Title: Hammer mechanism
Inventor: BRENNSTROM K O
IPC: B23Q11/00
Filed: 1973-06-20
Abstract: 1382022 Percussive tools ATLAS COPCO AB 20 June 1973 [30 June 1972] 29187/73 Heading B4C A hammer piston 3 of a rock drill is driven towards a tool 5 by a gas cushion in the working chamber 4 of a driving piston 2 and gas is transferred from the chamber to a channel in the tool through a passage device 14 during normal operation, the hammer piston having an extreme position beyond the normal working stroke in which the tool is at rest and the driving piston can still operate so that gas can still be transferred from the working chamber to the channel in the tool. As shown in Fig. 2 the hammer piston is in the impact position being driven to this position by a gas cushion created by a compressor piston driven by an I.C. engine. The return of the hammer piston after impact is ensured by suction in the working chamber 4 by the upward movement of the piston 2. On this return, the hammer piston strikes an  impact ring 7 slidable within a chamber 22. When the piston 2 is driven downwards it closes air intake 21 and the hammer piston 3  moves down to open a connection between the working chamber 4 and a non-return valve 16 of the passage device for transferring air via a pipe 14 and passageways to a flushing channel (15) Fig. 1 (not shown) in the tool 5 for flushing purposes. When the rock drill is lifted by means of handles 25, the tool drops to the position shown in Fig. 4 and the hammer piston 3 drops on to a resilient stop 13 to force air from a damping chamber 9 into the flushing channel of the tool. In this lifted position, the piston 2 is unable to suck the hammer piston 3 back.
Patent GB-505885-A (GB)
Title: Improvements in barometric capsules
IPC: G01L7/00
Filed: 1938-10-08
Abstract: 505,885. Barometers. LAURET, M. A. Oct. 8, 1938, No. 29224. [Class 106 (ii)] A barometric capsule comprises means for ensuring a mutual longitudinal guiding of the two ends through antifriction means without play and with minimum friction. In the form shown one end part 9 has rigidly secured thereto a rod 10 hardened and ground which is slidable between two sets of hardened rollers 11 loose on axles mounted on a socket 12 connected to the other end part 13. In a-similar form the rod is engaged by balls carried on a tube between the rod and socket which is hardened and ground on the inside. In a still further form, the capsule is strengthened by an internal spring between the ends and balls are carried in recesses in a light metal cage between the rod and socket.
Patent GB-692316-A (GB)
Title: An improved tractor with pivoted front axle
IPC: B62D7/00
Filed: 1950-11-29
Abstract: 692,316. Tractor front-axle suspensions. MASCHINENFABRIK FAHR AKT.-GES. Nov. 29, 1950 [Jan. 13, 1950], No. 29264/50. Class 108 (ii). In a tractor having a front axle 1 pivotally mounted centrally in a support 6, itself spring- mounted with respect to the tractor frame 16, the spring mounting comprises helical springs 18, 19 mounted between outer and inner relatively-displaceable tubes 15, 8 connected respectively to the frame 16 and the support 6. The mounting 6 comprises a tube 6a welded to a plate 7 to which a pair of tubes 8 are bolted, and a plate 9 bolted at 10 to the upper ends of the tubes 8. The tube 6a forms a bearing for a pin 5 rigid with a sleeve forged in the centre of the axle 1. A member 13 pivotally supported on the tube 6 is connected by struts 14 with respective ends of the axle 1. The tube 15 has abutments at 17, 17a for the springs 18, 19 which are each enclosed by telescopic dustexcluding sleeves 20. The space within the tube 15 and between the spring may contain oil. Each end of the axle carries a king-pin for a steerable running wheel.
Patent GB-536183-A (GB)
Title: Improvements in or relating to gearing for steering mechanically propelled vehicles and for other purposes
IPC: B62D3/10
Filed: 1939-11-03
Abstract: 536,183. Worm gearing. BISHOP, R., and JOHNSTON, R. H. Nov. 3, 1939, No. 29343. [Class 80 (i)] Relates to gearing particularly applicable to the steering of motor vehicles and of the kind comprising a cylindrical worm engaging a sector mounted on a rocker shaft and having laterally projecting teeth adapted to be engaged successively by the worm. In Specification 502.035 gearing of this kind is described in which the worm has only substantially a single turn of land preferably generated as described in Specification 223,963, [Class 80 (iii)]. According to the invention, the worm has less than a single turn of land and yet has sufficient worm groove between the adjacent ends of the thread to ensure the transfer of the drive from one tooth of the follower to the next. A steering shaft 1 carries a worm 2 co-operating with teeth 11, 12 on the follower 3 carried by a rock-shaft 4. The complete land of the worm 8 extends from 13 to 14 which is less than 360 degrees. The starting ends of the flanks overlap. Thus, the starting point 15 of the flank which finishes at 16 is spaced approximately 20 degrees from the starting point 17 of the other flank which finishes at 18, consequently the ends 15, 17 overlap. The finishing end of a flank terminates 20 degrees short of the starting point of the other flank. The portions of the worm from the point 16 to the end 10 and from the point 18 to the end 9 are formed with outer faces 19. 20 which are in planes at right angles to the worm axis and the ends 9, 10 are at right angles to these faces. The worm has a complete, i.e. non- mutilated, land extending for approximately 340 degrees, i.e. from 13 to 14, the end parts being tapered by the formation of the faces 19, 20.
Patent GB-1333837-A (GB)
Title: Azo dyestuffs and preparation thereof
IPC: C09B47/32
Filed: 1971-06-22
Abstract: 1333837 Water-soluble quaternary ammonium mono- and dis-azo dyestuffs STERLING DRUG Inc 22 June 1971 [1 July 1970] 29451/71 Heading C4P Novel dyestuffs of the formula wherein c is 1 or 2; R<SP>8</SP> is lower alkyl, alkenyl or hydroxyalkyl; R<SP>9</SP> is lower alkyl or hydroxyalkyl; R<SP>10</SP> is lower alkyl or alkenyl; An is an anion; Y<SP>3</SP> is a phenylene radical optionally lower alkyl or alkoxy or halo mono-substituted; and Z is a radical derived from one of the following coupling components : (in which Q<SP>2</SP>, Q<SP>3</SP> and Q<SP>4</SP> are each H, lower alkyl or alkoxy, OH, NO 2 , NH 2 , carbo-lower alkoxy, carbamoyl, sulphamoyl or halo; Q<SP>5</SP> and Q<SP>6</SP> are each H, lower alkyl or alkoxy or halo; Q<SP>7</SP> is H, lower alkyl or alkoxy, NO 2  or halo; R<SP>4</SP> is lower alkyl or alkoxy, carbamoyl or carbo-lower alkoxy; R<SP>5</SP> is H, lower alkyl, halo, benzoxazol-2-yl or benzimidazol-2-yl; and R<SP>6</SP> is H, lower alkyl or halo; lower alkyl and alkylene referring to groups of at most 6 C atoms, lower alkenyl to groups of 2-6 C atoms, and lower alkoxy to groups of at most 4 carbon atoms) are prepared by diazotizing an appropriate aniline derivative and coupling approximately c molecular proportions of the diazonium salt with one molecular proportion of a coupling component Z. The dyestuffs are used for dyeing natural and synthetic fibres and cellulosic materials in red to yellow shades.
Patent GB-1183079-A (GB)
Title: Improvements in or relating to Catalysts for Decomposing Hydrazine and its Derivatives
IPC: B01J23/28
Filed: 1967-06-26
Abstract: 1,183,079. Reduced Mo catalysts. FRANCE, ARMED FORCES, MINISTER OF. 26 June, 1967 [30 June, 1966], No. 29457/67. Heading B1E. Catalysts useful in decomposing hydrazine and derivatives comprise a cobalt-free mixture of molybdenum with molybdenum oxides deposited on a carrier comprising Al and Na silicates or activated carbon, the Mo of the oxides having a valency <6. Additionally the catalyst may contain Ni, Rh, Ir, Cr and/or Cu. The carrier of mixed silicate may be a molecular sieve. The preparative details provided are conventional e.g. impregnation of carrier followed by reduction of Mo compound.
Patent GB-520088-A (GB)
Title: Improvements in or relating to rock drilling equipment
IPC: E21B17/04
Filed: 1938-10-12
Abstract: 520,088. Rock drills. HAIG, D. M. (Eidco, Inc.), Oct. 12, 1938, No. 29484. [Class 124] In a rock drill the bit comprises a hollow head 10 flattened on opposite sides and having a conical depression providing diametrically opposed arcuate reaming edges 17, and one or more cutter portions 13 within the conical depression. The reaming edges lie substantially on the same circle, and the under surface of the head 10 may be of double conical formation, as shown at 37. The cutters 13 may be elliptical, straight sided with chisel edges 16, or they may be of cross, rose, or other shape. They may lead or follow the reaming edge in the cutting operation, and they may have tapered shanks 14 for attachment to the head by friction joints, or they may be attached by the usual screwthreaded connections. They may be made in two or more axially split parts, and their plane surfaces may be at equal or unequal angles to their axes. They may be formed with fluid passages which discharge on their opposite sides. The head 10 may be removed from the tapered portion 2 of a drill rod by means of a U-shaped wedge member 21 which engages astride the rod and fits between the bit head and inclined portions 22 on opposite sides of an integral or rigidly fixed buttress ring 20. The drill rod comprises a number of sections 1 provided at each end with a female member 5 or a serrated male member 2 adapted to make a friction joint with a corresponding male or female member on the next section or on a coupling member 7. Each male member 2 may have a steep portion O with inclined shoulders 4.on opposite sides to provide angular flat portions 3 adapted to accommodate a wedge for separating the two parts. The serrations may be parallel to the axis of the rod or bit, inclined thereto, or crossing each other, and the inside of the sockets may be made softer relatively to the outer surfaces and cutting edges.
Patent GB-1152370-A (GB)
Title: Hard, Wear-Resistant Ferrous Alloy
IPC: C22C37/00
Filed: 1966-06-30
Abstract: 1,152,370. Casting composite articles. XALOY Inc. 30 June, 1966 [8 Sept., 1965], No. 29502/66. Heading B3F. [Also in Division C7] A ferrous metal housing may be lined with a wear-resistant alloy by charging it with shot or fused pieces of the appropriate composition, capping the ends and heating the assembly to between 2000‹ and 2300‹ F. to melt the alloy. The assembly is then rotated to spin the molten alloy over the internal surface thereof whilst allowing it to cool to 1700‹F; thereafter it is slow cooled, as by covering it with diatomaceous earth, to induce compressive stresses in the lining. Catalytic crackers, plastic extruders, mixers or tubes may be so lined.
Patent GB-741530-A (GB)
Title: Improvements in and relating to wristlet watches
IPC: G04B37/14
Filed: 1953-10-26
Abstract: 741,530. Watches. DUCOMMUN, P. Oct. 26 1953 [June 11, 1953], No. 29551/53. Class 139 The strap attachment lugs 3, Figs. 1 and 2, of a watch case are soldered or brazed on the top of the caseband 1 and do not project laterally beyond the caseband 1. The lugs 3 may be made in one piece with the caseband.