baber/WOPTO huggingface dataset:
Patent GB-230873-A (GB)
Title: Toothed gears and machine for making them
IPC: B23F5/20
Filed: 1923-09-20
Abstract: 230,873. Marks, E. C. R., (Security Trust Co.). Sept. 20, 1923. Gear-cutting.-In bevel and spur gearing, the two faces of each tooth of one wheel are respectively spherically convex and concave in two intersecting directions, the teeth of the other wheel being made approximately conjugate by a generating process. Rotary cutters with circular cutting edges are employed. The bevel wheel cutter 32, Figs. 1 and 2, for producing a complete tooth space, rotates on an axis 26 inclined as shown to the axis 21 of the blank 20, the nearest point 31 of the axis 26 to the axis 21 lying preferably within the tooth circle as seen in Fig. 2. The cutting-edges 33, 34 are struck about centres 29, 30 on the axis 26, the radius of the edge 33 being preferably rather greater than that of the edge 34 and the radii being approximately equal to the distance 21 - - 31. The cutter tips 35 may be arranged at right-angles or oblique to the axis 26. The axis 26 is shown so placed that the cutting paths of the tool approximate to involutes of a circle with centre on the axis 21 and in a plane at right-angles to that axis. The tool may be used for finishing only, or for the whole cutting if the necessary feed is given. The bevel pinion approximately conjugate to the wheel is generated from a, blank 47, Fig. 7, which shows the parts inverted relatively to those shown in Figs. 1 and 2, the blank being secured to a shaft 48 carrying a bevel wheel 53 gearing with a fixed whell 54 on an axis 50, the shaft 48 being carried In a support 49 rotated on the axis 50. The shaft 48 and axis 50 are inclined at an angle d corresponding to the angle between the axes of the bevel wheel and pinion to be produced and the wheels 53, 54 reproduce the required gearing ratio. The angle may be reduced by a few minutes to secure backlash. The cutter 39 is arranged on an axis 42 passing through the apex of the back cone of the bevel wheel already produced, assuming that the wheel is arranged on the axis 50 in gear with the blank 47, and through the centre 29 of the cutting edge 33 of the cutter 32, the centre 44 of the edge 43 of the cutter 39 coinciding with such centre 29. The radii of the edges 43 and 40 struck from centres 44, 41 are respectively equal to the radii of the edges 33, 34 of the cutter 32, and the distance 41-44 preferably less than the distance 29-30. The cutter tips may be perpendicular or oblique to the axis 42. For cutting a spur wheel, a cutter turns on an axis lying on a plane parallel to the end faces of the wheel and preferably equidistant therefrom, the pinion blank being rolled with its pitch circle on the pitch line of a rack corresponding to the wheel while a cutting-tool representing the rack is rapidly rotated.
Patent GB-856870-A (GB)
Title: Improvements relating to the manufacture of bonded non-woven fabrics from textile fibres
IPC: D04H1/488
Filed: 1957-07-25
Abstract: 856,870. Bonded non-woven fabrics. GLOVER, B. M., BUCKLEY & CO. (MORLEY) Ltd. July 25, 1958 [July 25, 1957], No. 23551/57. Class 140. A method of manufacturing a bonded non- woven fabric from textile fibres includes the steps of preparing a continuous very thin web of fibres, folding the web upon itself to build up a number of layers into a sliver, spraying on to some or all of such layers except on the top and bottom surfaces of the sliver, a synthetic or rubber plastic bonding agent or agents, passing the partially impregnated sliver through a fibre intermingling machine in which fibres from some layers are carried into one or more other layers and subsequently subjecting the fabric of bonded and intermingled fibres so produced to a further treatment for the purpose of setting, gelling or vulcanizing the bonding agent. As shown, Fig. 1, a web W of fibres is laid in layers to produce a sliver S by means of a folding device, indicated generally at f, wherein lattice f<SP>1</SP> reciprocating lengthwise of the web while lattice t 2  travels at right angles thereto to carry the sliver of built-up layers to the feed means of an intermingling machine indicated generally at i. Spray pipe p is supported above the web being laid on lattice f<SP>2</SP> and is reciprocated with lattice f, so as to spray each succeeding layer across the width of the sliver with bonding agent. The intermingling machine (Fig. 4) includes a base plate 1 over which the sliver of built-up sprayed layers is fed, a presser-foot 2 which may be lowered to compress the sliver, and a tread 3 carrying a series of plungers 4. A plunger (Fig. 2) consists of a thin rod with its lower end shaped to an inverted U and having grooves 4x to accommodate fibres when being pushed down through the sliver. In operation, the lower ends of the plungers engage fibres and carry portions of them down through lower layers of the sliver to produce intermingling of substantially the whole of the fibres constituting the sliver. The fabric may then be dried by passage around heated cylinders d (Fig. 1) and passed through vulcanizing apparatus V.
Patent GB-975560-A (GB)
Title: An improved storage block primarily for use in heating buildings
Inventor: JACKSON ROBERT ALFRED FREDERIC
IPC: F24H7/04
Filed: 1960-07-06
Abstract: 975,560. Air heaters for buildings; heat storage blocks. HEATOVENT ELECTRIC Ltd. Sept. 21, 1961 [July 6, 1960], No. 23624/60. Headings F4S and F4U. An air heater comprises a heat-storage block 10 consisting of a mineral mass 11 surrounded by heat-insulating material 33, 34, 35, 36, e.g. fibre glass and penetrated by heating means 15 and heat-conducting means 28, 31, 32, communicating with one or more air ducts 12 extending through the block. In the apparatus shown, the mass 11 comprises seven superposed slabs of concrete supported on H-sections 19 and 20. The three middle concrete slabs have a duct 12 passing completely through them and the tops of all the slabs except the very top slab have channels 15 formed in them which contain heating elements 17 (Fig. 3, not shown). The elements are wired in series with two busbars 23 and 24. The interfaces between the first and second blocks both top and bottom have sandwiched between them a material of good heat conductivity 28, e.g. copper, steel or aluminium which is formed around the second block and whose ends terminate at 29 and 30 in the duct 12. Similar high conductivity material 31, 32 is situated between the faces of the middle block and the adjacent faces of the blocks next to it. This material ending in duct 12 at 33 and 34. In a modification, the parts of the high conductive material actually in the duct may be rippled, dimpled, corrugated or bent &c. to provide a large surface area relative to the duct cross-section (Fig. 6, not shown). The mineral mass may consist of sand or other pulverulent material contained in a metal case, the heat-conducting material extending into the sand, from the outer surface of the duct or ducts. More than one duct may be formed in the mass (see Figs. 6 and 8), the ducts communicating with air channels whereby air is impelled through the ducts and then out of the blocks in a continuous unidirectional flow.
Patent GB-504248-A (GB)
Title: Apparatus for the electrical transmission at a distance of rotary velocities
IPC: G05D3/10
Filed: 1938-08-11
Abstract: 504,248. Electric control systems. HASLER AKT.-GES. WERKE FUR TELEPHONIE UND PRAZISIONSMECHANIK. Aug. 11, 1938, No. 23707. Convention date, Aug. 30, 1937. [Class 40 (i)] In a system for transmitting to a distance, rotary velocities, a multi-contact distributer, rotated at the speed to be transmitted, sends impulses over a plurality of wires to a multipole receiver having a soft iron rotor. the number of pole pairs of which is less than the number of pole pairs on the stator. As shown, the soft-iron rotor 6 of the receiver E has two pairs of poles and rotates in the field of a stator having three pairs of poles excited in succession over line wires 13, 14, 15 by a distributer comprising interconnected staggered contacts la, 1b, 1c co-operating with brushes 2a, 2b, 2c. Additional segments 1d, 1e, If are connected in series with a resistancecondenser combination 17, 18 to prevent sparking at the main contacts. A resistance 8 which is automatically adjusted in accordance with speed, limits the current at low speeds ; alternatively the resistance may be regulated in. accordance with the value of the current. A governor controlled contact 11 operated by the transmitter is opened when the latter is stationary or shortly before it comes to rest. A stationary distributer co-operating with a rotary brush may be employed, this arrangement facilitating alteration of the connections to effect transmission of different numbers of impulses per revolution. In.a a further modification the transmitter comprises cam-operated contacts.
Patent GB-185423-A (GB)
Title: An improved starting device for magneto electric ignition machines
IPC: H02K21/32
Filed: 1922-09-01
Abstract: 185,423. Neighbour, A. G. L. Sept. 3 1921, [Convention date]. Inductor machines.-In a magneto of the rotary armature type wherein an angularly-displaceable pole-sleeve is adapted to be moved against the action of a spring and then released so as to bE returned by the spring rapidly to its initial posi. tion, to produce a strong spark when starting ar engine, the release of the pole-sleeve is effected by means of a fixed stop mounted on the body casting of the magneto. The auxiliary pole-pieces which are preferably laminated are carried by the pole-sleeve 15 to which are secured end plates or caps 17, 24. A helical spring 38 is located in a chamber 37 and bears at one end upon an abutment 39 fixed to a pin 40 in the casting 1C and at the other end against an abutment 41 secured to the cap 17. When the armature rotates slowly a ratchet tooth 47 on a disc 4E carried by the armature shaft 22 engages with a pawl 46 on a lever 45 secured to the cap 17. The cap 17 rotates with the shaft 22 until the projection 50 on the lever 45 engages with the fixed stop 49 thereby releasing the pawl 46 and allowing the spring 38 to return the sleeve 15 rapidly to its normal position. A lever 52 on one end of which presses a spring 55 is adapted to hold the pawl 46 away from the disc 48 when the engine has started. By means of a Bowden wire the pawl 46 may be brought into the operative position when desired. In an alternative arrangement for holding the pawl 46 out of action, a locking-lever is provided which forms a seating for one end of a leaf spring the other end of which bears against the projection 50. In another arrangement which is automatically caused to function at starting and to become inoperative at a certain speed, two flyweights 72, Fig. 6, are provided. At starting these engage with a pawl 46. On attaining a certain speed the weighted ends of the flyweights move outwards so that the ends 73 no longer engage with the pawl 46. In a further modification, the sleeve 15 is moved independently of the shaft 22, and while the engine is stationary, by means of a pawl engaging in a notch in the cap 17 and actuated manually through a rod or the like. In all the arrangements described, provision is made for altering the position of the different parts of the actuating mechanism to allow of rotation in the opposite direction. The end plate 24 carries the cam ring 31 for the circuit breaker 29. A non-rigid connection is provided between the timing lever 85 and the sleeve 15 so that the pawl 46 is able to move the sleeve 15 independently of the timing-lever.
Patent GB-945900-A (GB)
Title: Improvements in or relating to photographic film processing apparatus
Inventor: BRANSON ARTHUR
IPC: G03D3/06
Filed: 1961-06-30
Abstract: 945,900. Processing apparatus. BRITISH BROADCASTING CORPORATION. June 29, 1962 [June 30, 1961], No. 23770/61. Heading G2A. A photographic film processing apparatus comprises a plurality of photographic film processing tanks 11, 12 &c. arranged in a row with a plurality of film rollers 35, 36, 37 &c. arranged along a driving spindle 19 disposed above and generally parallel to the row, the tanks being of rectangular cross-section and being disposed with their longer sides oblique to said driving spindle and parallel to one another; one or each tank has a diabolo assembly in it which comprises two rollers 38, 39 mounted for rotation on opposite sides of a plate 40 with their axis of rotation spaced but parallel to each other and at right angles to the plate, the arrangement being such that the diabolo assembly is a free sliding fit in the tank, and in which the driving spindle carries two film rollers for each tank containing a diabolo assembly whereby a double loop of film can be hung in the tank. Preferably the assembly has two guide rollers 41, 42. To facilitate film threading the tank housing 10 is provided on its outside with two end upright bars 54 on which spindle 19 can be placed and which are joined by a bar 52 provided with slots in which the diabolo assemblies can be fitted. The tanks may be provided with devices for keeping the level of the liquid constant.
Patent GB-532149-A (GB)
Title: Spring suspensions for perambulators and like hand-guided vehicles
IPC: B62B9/18
Filed: 1939-08-18
Abstract: 532,149. Perambulators &c. STERN, R. Aug. 18, 1939, No. 23823. Convention date, Aug. 18, 1938. [Classes 108 (ii) and 108 (iii)] Perambulators and like carriages have caster wheels 8 with spindles 5 gripped tightly in indiarubber sleeves 4 secured in brackets 2 on the body 1 of the carriage. The spindles of the front wheels and the brackets in which they are mounted are of an elliptical or elongated crosssection. The forks of the rear wheels are cranked more than the forks of the front wheels.
Patent GB-804398-A (GB)
Title: Improvements in or relating to swim suits or bathing costumes for ladies
IPC: A41D7/00
Filed: 1956-08-02
Abstract: 804,398. Swim suits. DENNE, F. E'. June 5, 1957 [Aug. 2, 1956], No. 23843/56. Class 141 A swim suit is provided with a crotch portion 3 having one end permanently secured to or integral with the rear or front portion of the garment and its other end adapted to be detachably secured to flaps on the inner surface of the front or rear portion respectively. In Fig. 1, the free end of the crotch portion 3 comprises a substantially rectangular flap 4 with buttons 7 for engagement with buttonholes 6 in strips 5 attached to the front seams of the garment. Alternatively press studs may be used as fastening means. The swim suit is divided down one or both sides and is adjustably fastened by lacing 2. Stiffeners 8 may be incorporated in the breast pockets and releasable shoulder straps or a neck strap 9 may be attached to the upper edge of the garment.
Patent GB-1169506-A (GB)
Title: Improvements in or relating to Magnetic Memory Systems.
IPC: G11B5/012
Filed: 1968-05-20
Abstract: 1,169,506. Electric digital data-storage. NATIONAL CASH REGISTER CO. 20 May, 1968 [23 June, 1967], No. 23879/68. Heading G4C. In a magnetic memory system comprising a recirculating magnetic surface having a plurality of annular storage tracks, a transducer is moved transversely of the tracks to the required track(s) under control of track address signals derived from tracks during the transverse movement. In a magnetic disc file, a head assembly for a removable stack of 3 discs holds 12 heads for each of 6 disc surfaces and can be positioned at any one of 16 radial positions to co-operate with a corresponding one of 16 sets of 72 tracks. Each 72 tracks comprise 64 data tracks, a label track and 7 spare tracks. Each disc surface is divided into 8 sectors. A computer supplies an address having zone, cylinder and sector portions, the head assembly being moved radially in the appropriate direction as the discs rotate until positioned on the required set of tracks, specified by the zone and cylinder portions which are compared with zone and cylinder indications read from each (or every fourth) label track crossed until equality is obtained, notice being taken of the comparison results only on a portion of the width of a label track near its leading edge (encountered radially) under control of a cam driven by the head assembly motor, thus ignoring false signals at the junctions between tracks and enabling the head assembly to stop centrally on the required set of 72 tracks. The required sector is now obtained by comparison with sector addresses read from the label track of the set of 72 tracks reached, as the discs rotate. Each sector of each label track holds its zone, cylinder and sector address, and repetitive bit patterns for clocking, synchronization and data preamble and postamble. Some of these are used in recording data, sync. bits and data preamble (used for setting the gain of the read amplifier during read-out) and postamble in sectors of data tracks. If a plurality of consecutive sectors are required, the sector comparison is done only for the first. The number of sectors is preset by the computer into a counter which is then counted down. A plurality of disc units can be controlled via a common controller from the computer, each unit having two files, each as above, circuitry being shared between the two files to some extent. The controller incorporates serial-to-parallel conversion and the reverse for data transfer from disc to computer and the reverse respectively. Drum storage could be used in place of disc. Self-clocked recorded signals may be used.
Patent GB-393131-A (GB)
Title: Improvements in or relating to fan blades
IPC: F04D29/38
Filed: 1932-08-26
Abstract: 393,131. Screw fans. MARELLI & CO., Ltd., 19, Garlick Hill, Queen Victoria Street, London.-(Marelii et Cie Soc. Anon., E. ; 22, Corso Venezia, Milan, Italy.) Aug. 26, 1932, No. 23914. [Class 110 (i).] Hollow fan blades comprise a metal sheet 7 which is straight in cross section and a sheet 6 which is parabolically curved. The sheets curve at the tip of the blade and the leading edge is of sabre form. The joints 12 are caulked.
Patent GB-302376-A (GB)
Title: Improvements relating to road crossings and connections
IPC: E01C1/04
Filed: 1927-09-12
Abstract: 302,376. Woolnough, J. W. Sept. 12, 1927. Roads, arrangements of. -A crossing for main roads such as 3, 7 is in the form of a bridge or viaduct provided with a loop road, the sides 6 of which are separately supported and spaced apart in a direction longitudinally of the road 7 which they cross. Further, the sides 6 are connected by auxiliary vehicle passageways 8 to form an endless loop road suitable for a gyratory system of traffic, and are provided at or near their ends with branches or inclines 9 leading to and from the roads 3, 7. Instead of being formed at the crossing level of the road 3 as shown, the loop road may be disposed above the viaduct formed by the road 3, the sides 6 bridging the road 7 and the passage ways 8 bridging the road 3.
Patent GB-953432-A (GB)
Title: Improvements in or relating to the production of noble-metal layers
IPC: G03C5/58
Filed: 1960-07-08
Abstract: A layer of noble metal (i.e. metal more noble than copper) is formed on a non-metallic hydrophilic surface by first activating the surface with mercury by reacting a mercurous compound in the presence of water with an agent which reduces or disproportionates the compound and then depositing noble metal by reduction of a compound thereof in solution. Suitable surfaces are polystyrene, polyacrylate and phenol-formaldehyde when treated with chlorosulphonic acid; saponified cellulose acetate, polyvinyl acetate and polyvinyl chloride; glass coated with silica gel; and gelatin, regenerated cellulose, paper, wood and polyvinyl alcohol.  The surface may be treated with the mercurous compound and the agent successively; suitable solutions contain respectively mercurous nitrate optionally together with a hydroxy acid such as citric, tartaric, glycollic, glyceric or malic acid, and thiosulphate, carbonate, sulphite, thiocyanate, thiourea, nitrite, sulphide, cyanide or borofluoride. The noble metal may be deposited from a solution containing silver nitrate and a reducing agent such as hydroquinone, p-phenylene-diamine, pyrogallol or hydrazine.  The layer may be coloured, electroplated, coated electrophoretically or lacquered. Its resistance may be reduced by heating, rubbing or treatment with a solution containing a potential determining anion with respect to the noble metal.  It may be a continuous coating or may be a pattern, e.g. for a screening grid, circuit pattern or radio stationname dial. Specification 953,431 is referred to.
Patent GB-296435-A (GB)
Title: Improvements in and relating to phonograph records
Filed: 1928-08-20
Abstract: 296,435. Dictaphone Corporation, (Assignees of Bodine, A. V.). Sept. 2, 1927, [Convention date]. Moulding phonograph records. - Sound-record tablets, particularly intended for use with dictating machines, are provided with a resilient reinforcement preferably in the form of a. perforated or reticulated sleeve 19 of rubber or the like, which is embedded in the waxlike material forming the body 10 of the record by moulding the material around the sleeve. In making a cylindrical record cf the form shown, having a spiral groove formed on the tapered interior, a mould is used comprising a helically fluted core and a cylindrical shell, both secured to a base. The reinforcing sleeve, preferably consisting of a perforated moulded rubber tube, or made of a strip of clothlike rubber fabric, is slipped over the core, tightly fitting thereon, and the molten record material is then poured into the space between the shell and the core. After the material has hardened and has been removed from the mould, the interior is reamed to increase the surface of contact with a supporting mandrel by removing a portion of the inwardly-projecting helical rib 14.
Patent GB-818720-A (GB)
Title: New carbamic acid esters and complex salts thereof and a process for their production
IPC: A61K33/06
Filed: 1956-08-03
Abstract: The invention comprises calcium halide complex salts of esters of tertiary amino ethynyl alcohols of the general formul <FORM:0818720/IV (b)/1> <FORM:0818720/IV (b)/2> where R1 and R2 each represent a straight o branched chain alkyl radical containing not more than 6 carbon atoms, R3 represents an alkyl radical containing 1 to 3 carbon atoms, R4 represents an alkylene radical containing not more than 4 carbon atoms and R5 and R6 represent ethylene radicals, with a phenyl or alkyl substituted carbamic acid, and the manufacture thereof by reacting an organic solvent solution of a carbamic acid ester of a tertiary amino alkynol of the general formula I or II, with an equimolar amount of a calcium halide.  Preferably the organic solvent is ether and the calcium halide is calcium bromide.  Examples describe the preparation of the calcium bromide complex salts of 1-methyl- and 1-ethyl-4-ethynyl-piperidyl-phenyl carbamates and of 1-ethyl-4-ethynyl-piperidyl-ethyl and 1-ethyl-4-ethynyl-piperidyl carbamates.
Patent GB-249415-A (GB)
Title: Combined double gland and bearing adaptable to all rotary pumps or similar apparatus
IPC: F16J15/18
Filed: 1925-10-07
Abstract: 249,415. Nicholls, F., and Lake, G. H. Oct. 7, 1925. Boxes; bushes; packing, inserting and extracting; stuffing-boxes, substitutes for.-In a stuffing-box for rotating pumps &c. of the type in which a lantern ring B is supplied with lubricant by a passage L removal and insertion of the packing is facilitated by the provision of a gland P at the inner end of the stuffing-box. The gland P screws into a ring R secured by pins P<1>. Additional packing P<3> in the outer gland G is compressed by a gland G'.