baber/WOPTO huggingface dataset:
Patent GB-679245-A (GB)
Title: Improvements in or relating to tractor clutches
IPC: F16D13/08
Filed: 1951-01-31
Abstract: 679,245. Ratchet clutches. FORD MOTOR CO., Ltd. Jan. 31, 1951 [Feb. 18, 1950], No. 2465/51. Class 80 (ii). [Also in Group XXXI] Relates to a clutch in a tractor driving gear (see Group XXXI) arranged between the output shaft 31 of a change speed gear and a rear axle driving shaft 33. The clutch comprises drums 44, 47 in splined engagement with the shafts 31, 33 respectively, the drums having annular extensions abutting and held in spaced relationship by a shaft 48. The extensions have interior and exterior frictional surfaces adapted to be engaged by helical springs 57, 66 to transmit the drive, the spring 57 operating for the one direction of rotation of the shaft 31 and the spring 66 for the reverse rotation, the springs being wound in opposite hands. The spring 57 is secured at 59 to the drum 47 and has a tapered forward portion adapted to be engaged by a throw-out collar 63 which is normally urged rearwardly by a coil spring 64 so that the spring 57 wraps itself onto the exterior frictional surfaces of the drums 44, 47 to transmit the drive between the shafts 31, 33, the collar 63 being movable to the left in Fig. 3 by a lever 84, Fig., 2, to disengage the drive. The spring 66 is secured at one end to the drum 47 and is expanded to engage the interior frictional surfaces of the drums 44, 47 by means of an energizing spring 69 which is normally in light frictional engagement with the drum 44 so that, on the shaft 31 rotating in the reverse direction, the spring 69 expands to enable the drive to be transmitted between the shafts 31, 33. By means of a pawl 86 on the lever engaging ratchet teeth 87 on a pivoted and spring urged lever 88 the forward drive clutch is held disengaged. The pawl 86 and ratchet teeth 87 are disengaged after a main clutch between the tractor engine and the change speed gear has been disengaged by the rod 94 connected to a pedal 97 controlling the main clutch and engaging an arcuate slot 93 in the lever 88, movement of the pedal 97 after the last motion has been taken up moving the lever 88 against the action of the spring 91 and allowing the lever 84 to return to its clutch engaged position under the action of a spring 98 so that the forward drive clutch can not be re-engaged until the main clutch has been disengaged.
Patent GB-270211-A (GB)
Title: Drum-stick, with disappearing wire-brush attachment
IPC: G10D13/00
Filed: 1927-01-28
Abstract: 270,211. Robertson, M. E. Jan. 28, 1927. Drum-sticks; cymbal-beaters. -A drum-stick either having a head shaped as at a for use with a side drum or furnished with a leather pad for use with a bass drum or a kettle drum, is pro. vided at its other end with a fanshaped wire brush b which may be withdrawn into the end of the stick, being secured in either position, or in intermediate positions to vary the strength of the brush, by a screw b<2> or bayonet slots. The ferrule in which the ends of the wires are held may be of oval cross-section. The brush is used in the production of certain 'jazz' effects. When the brush is withdrawn into the stick, a pad of spongy india-rubber, for striking a cymbal, may be used on that end of the stick.
Patent GB-346066-A (GB)
Title: Improvements in flexible harrows for aerating grass lands
IPC: A01B45/02
Filed: 1930-01-27
Abstract: 346,066. Implements for working land. OGLE, A., Hartshay House, Ripley, Derby. Jan. 27, 1930, No. 2707. [Class 6 (i).] In a flexible harrow made up of L-shaped components formed of round bars, the lower ends of the tines thereon are made of greater width than the round bars in side elevation and of less width in front elevation. The L-shaped components B have eyes at the angles and ends for connecting them together, their rear ends being carried down to form the tines A. The lower extremities of the tines may be either rectangular or V-shaped in front elevation and of either of the shapes shown in Figs. 5 and 8 in side elevation. Depth regulators or fences E may be adjustably clamped on the tines by collars F. The lower ends of the tines may be formed separately and may be detachably secured by collars H, which may act as depth regulators or fences.
Patent GB-555804-A (GB)
Title: Improvements in or relating to rivetting
IPC: B21J15/36
Filed: 1942-03-04
Abstract: 555,804. Riveting. RUDDICK, R., HATFIELD, S. J., and BRITISH UNITED SHOE MACHINERY CO., Ltd. March 4, 1942, No. 2832. [Class 43] [Also in Group XXII] A mandrel for use in riveting, of the kind described in Specifications 501,415 and 504,928, is of tapering form at the surface 11 of the head remote from the stem, to assist threading of the mandril head into a hole in the work, and of flat discoidal form adjacent the stem portion. The stem has a more or less elliptical cross-section at the locality of the constriction where the stem is intended to be broken off. To make the mandrel the wire stock is fed between dies 13, which close on it to form the constriction, the stock is severed to leave a predetermined length projecting beyond the dies, and this portion is acted on by a heading tool 21 to form the head.
Patent GB-1133501-A (GB)
Title: Production of fiber reinforced resin articles
IPC: B29C70/08
Filed: 1966-01-21
Abstract: 1,133,501. Moulding continuous fibre-resin lengths. KOPPERS CO. Inc. 21 Jan., 1966 [22 Jan., 1965], No. 2938/66. Heading B5A. Continuous fibre resin lengths, either tubular or solid, having a cross-section other than circular, are made by the following steps: (a) applying a coating of resin to a cylindrical core; (b) laying suitable longitudinal and helical reinforcements upon the coated core; (c) pulling the impregnated reinforcement thus formed over a transition zone in the core to change its shape from cylindrical to that required; and finally, (d) pulling the shaped length through a suitably shaped heated forming die in which the resin is cured. In one embodiment (see Fig. 1, not shown) resin is applied to the upper end of a vertically disposed cylindrical core through an adjustable annular orifice formed between an outer sleeve and the core (see Fig. 2, not shown). As the resin flows down the core, suitable reinforcements are applied thereto from various stations (31), (34), (36) and (37) situated along the length of the core. The cylindrical fibre-resin structure thus continuously formed is passed down over the transition zone along which the core is gradually converted to a square cross-section. The structure is then pulled through a suitably shaped forming passage over the square crosssectioned lower zone of the core which zone projects through said forming passage. Lengths having a solid cross-section are made simply by omitting the lower zone of the core.
Patent GB-396389-A (GB)
Title: Improvements in devices for spraying insecticidal or other liquids
IPC: B05B11/06
Filed: 1932-02-01
Abstract: 396,389. Spray-producers. ASIATIC PETROLEUM CO., Ltd. and DAVISON, W., St. Helens Court, Great St. Helens, London. Feb. 1, 1932, No. 3014. [Class 69 (iii).] In devices for spraying insecticidal and other liquids of the type comprising a pump 6 with a nozzle 9, a liquid container 4 detachably connected to the pump and a liquid supply pipe leading from the container to the pump nozzle, the pipe is made in two parts one of which 7 is permanently secured in the pump, and the other of which, I, is mounted in the container and is adapted to be aligned with the part 7 when the pump and container are assembled for use. In one form the pipe 1 is formed with a head 2 seated on or jointed to the mouth of the container, or it may be formed integrally therewith. The container screws into a recess 5 or on to a boss on the. pump barrel. In a modification, the pipe section 7 may lie on the outside of the end wall of the pump and the attachment boss correspondingly positioned.
Patent GB-1418616-A (GB)
Title: Digital filter
IPC: H03H17/06
Filed: 1974-01-23
Abstract: 1418616 Active filters TELECOMMUNICATIONS RADIOELECTRIQUES ET TELEPHONIQUES 23 Jan 1974 [25 Jan 1973] 3121/74 Heading H3U A digital filter having a cutoff frequency f c  comprises: a first section 12 having a cutoff frequency f m / 2  to input 5 of which are applied binary coded input signal samples at a sampling frequency f s  and which produces at its output 14 binary coded signal samples at a sampling frequency f m  which is at least 2f c , but less than f s : and a second section 17 having a cutoff frequency f m / 2  to the input 16 of which is applied the output from the first section 12 and which produces at its output 6 binary coded signal samples at a sampling frequency f<SP>1</SP> s  which is higher than f m . The input signal sampler 2 is clocked by the signal f s  provided by a clock generator 3 from which is also derived a clock signal f m  for controlling the multipliers M of the section 12 and also a clock signal f s <SP>1</SP> for controlling the multipliers M<SP>1</SP> of the section 17. The frequencies f s  and f<SP>1</SP> s  may be equal, and a further filter section 25 may be included between the two sections. The first section may comprise a number of subsections, each of which divides the sampling frequency by two, and the second section may comprise a further number of subsections each of which multiplies the sampling frequency by two, Fig. 18 (not shown). The respective subsections may be non-recursive, Figs. 20, 22 (not shown) or recursive Figs. 23, 25 (not shown). In another modification, Fig. 7 (not shown), the first filter section includes a time demultiplexer (22) which provides N outputs. These are processed separately and are recombined in a multiplexer (24) in the second section-to provide the required output.
Patent GB-1537481-A (GB)
Title: Process for manufacturing expanded non-polar plastics material
IPC: C08J9/16
Filed: 1975-01-24
Abstract: 1537481 Expanded non-polar plastics materials ISOBOX-BARBIER and J SOULIER 23 Jan 1976 [24 Jan 1975] 3125/75 Heading C3C [Also in Division B5] Expanded plastics material is made by mixing a non-polar plastics material, such as polystyrene, containing a blowing agent with a liquid polar material, such as water, and subjecting the mixture to a super-high frequency electromagnetic radiation in a resonating cavity. The process may be used to produce moulded articles or dry pre-expanded beads for use in subsequent moulding processes. In a first embodiment (see Fig. 1) expansible polystyrene beads are extruded by a screw extruder 1, 4, 5 through an elongated PTFE die 2 located within a resonating cavity 6 connected to a magnetron 7. The hot expanded material thus formed is cooled by passage through a chamber 3. In a second embodiment (see Fig. 4) expansible polystyrene beads are injected by a screw injector 31, having an injecting head 32 located within a resonating cavity 33 connected to a magnetron 34, into a series of split injection moulds 36 carried by a horizontal turntable 35. In a third embodiment (see Fig. 3, not shown) the horizontal turntable is replaced by a vertical turntable and the moulds pass through a resonating cavity and then a cooling zone. In a fourth embodiment (see Fig. 2, not shown) the split moulds moving around a closed elongated path pass an injection head and then pass through resonating and cooling chambers.
Patent GB-607361-A (GB)
Title: Improvements relating to sliding doors for vehicles
IPC: B60J5/06
Filed: 1946-01-31
Abstract: 607,361. Sliding doors for vehicles. OVERTON, W. Jan. 31, 1946, No. 3150. [Classes 103 (ii) and 108 (i)] [Also in Group X] A sliding door 13 (see also Group X) for a vehicle, of the type mounted on guide rails by hanger brackets having runners or carriages engaging the rails, is arranged to.be flush with the adjacent parts of the vehicle side in the closed position by providing two rails 16, 17 for the leading and trailing edges of the door (with respect to its closing motion) respectively. At least one (17) of these rails is directed towards the wall at the end corresponding to the closed position of the door. The runners 37, 38 engaging the rails each comprise a roller borne by a pin secured to a sleeve pivotally mounted about a vertical axis on the corresponding hanger bracket 28, 29, the vertical pivot 32 of the trailing bracket being set rearwardly of the trailing edge of the door. The lower edge of the door is guided by studs engaging in grooves in the floor below the door shaped to correspond with the rails 16, 17. The rails 16, 17 are of channel section, the rollers 37, 38 resting on the lower flanges. A buffer strip 11 and a closure strip 24 may be provided. Specification 531,972 is referred to.
Patent GB-123798-A (GB)
Title: Improvements in and relating to Hinge Parts of the Framework of Aeroplanes, and the like.
IPC: B64C9/02
Filed: 1918-01-22
Abstract: 123,798. Hackett, W. W., Hackett, A. G., and Accles & Pollock. Feb. 22, 1918. Hinges.-A hinge part for the framework of aeroplanes &c., comprising an attachment socket with an integral lug extending to the hinge axis, has its socket axially extended from a blank, the unextruded parts of which form the lug. Fig. 1 shows a socket for the fin post of an aeroplane with lugs b, c forming part of the rudder lever hinge. The lugs b, c are on separate blanks having extruded sockets a brazed to a tube e. A wiring lug may also be formed on one of the blanks. Modifications are described in which pairs of lugs are placed in contact with axially alined sockets and brazed or riveted together without a tube e.
Patent GB-924963-A (GB)
Title: Improvements in or relating to methods of introducing oxide constituents into metalsand/or alloys
Inventor: COTTINGHAM DAVID MICHAEL
IPC: C22C1/10
Filed: 1960-01-28
Abstract: A dispersion of one or more oxides in a metal or alloy matrix is produced by blowing through a molten bath containing both the matrix and oxide-forming metals a mixture of oxidizing and reducing gases in proportions such that the desired oxides are formed while the matrix metal(s) remains unoxidized.  Formation of dispersions of alumina in copper and in nickel, and thoria in bismuth or lead/bismuth alloy, are described.  Specification 842,173 is referred to.
Patent GB-1441337-A (GB)
Title: Aerodynamic air-cushion vehicles
IPC: B63B1/20
Filed: 1974-01-23
Abstract: 1441337 Aircraft; ground effect vehicles VEREINIGTE FLUGTECHNISCHE WERKE-FOKKER GmbH 23 Jan 1974 [27 Jan 1973] 03195/74 Headings B7W and B7K  A vehicle for movement in close proximity to a ground surface under surface-effect operating conditions comprises a front wing 1 which has a thin cross-section and a considerable camber thereby forming under its lower surface 6 a cavity 4 so that the lift of the wing is dependent on surface-effect conditions, and a rear wing 2 having a thick cross-section with a heavily cambered top surface and a planar lower surface whereby wing lift is developed principally by the top surface. The wings, which have parallel leading and trailing edges, are connected by end plates 3, the wing 1 carries a cabin 8 and propulsion unit 9 and wing 2 carries a fin and rudder 14. Alternatively the vehicle may have a central fuselage supporting tandem wings. In operation of the vehicle under surface-effect conditions any increase in the angle of incidence will increase the lift of the rear wing, which will tend to restore the vehicle to its original altitude.
Patent GB-432642-A (GB)
Title: Improvements in or relating to joints and couplings for flexible tubes or hose
IPC: F16L33/18
Filed: 1934-01-31
Abstract: 432,642. Pipe joints. TATHAM, H., Norfolk Farm House, Pyrford, Surrey. Jan. 31, 1934, No. 3218. [Class 99 (i)] A hose pipe coupling comprises a flanged liner 4, a sleeve 9 extending over the flange 3 and having an internal flange 10 fitting closely on the hose, and packing material 13, such as lead, interposed between the hose and sleeve which screws on to an adaptor 17 to compress the packing on to the hose. To join two hose sections the liner flanges abut and the sleeves have screw-threaded engagement. Lead washers 7, 19 are provided, and the surfaces of the flange and adaptor may have concentric annular grooves 18. The packing sleeve 13 may have a bevelled end. The liner is rounded at 5 and may have a roughened surface. In the case of a hose having an inner metallic tube with helical ribs, the liner 4 is adapted to screw into the hose.
Patent GB-988152-A (GB)
Title: Dusting device for developing latent electrophotographic images
Inventor: SILLEVIS LEENDERT WILLEM
IPC: G03G15/26
Filed: 1962-01-29
Abstract: 988,152. Developing electrophotographic images; photographic apparatus. LICHTDRUKPAPIERFABRD3K DE ATLAS N. V. Jan. 29, 1962 [Jan. 30,1961], No. 3278/62. Headings G2A and G2H. Apparatus for developing latent electrophotographic images comprises driving means for imparting translational movement to a strip of electrophotographic material, a vessel open at the top containing a coloured developer and carrier particles, a rotatably driven non-magnetic dusting roller covered with plush-like material such that the attraction of the carrier for the material is greater than that of the developer, the roller being mounted horizontally in the vessel and partly located in the developer, a plurality of stirring means, and guide means for the electrophotographic material along the top of the vessel so that the roller is located below the guide means,the circumferential speed of the roller being sufficient to throw particles on to the lower face of the material. The guide means may be a horizontal plate placed below the electrophotographic material and a plurality of flat strips above the material both being hingeable about parallel horizontal axes. The roller, vessel and guide means may be of metal and all are earthed. In the Figure, the electrophotographic material, after exposure is moved by rollers 38 to the developer vessel 22 wherein roller 23 with a plush (e.g.polyamide) cover 25 is mounted horizontally. The developer powder and carrier (e.g. iron or glass) is stirred by rollers 26 and 27 and is entrained on roller 23, the powder being thrown off the roller on to the material which passes between the flat metal strips 29 and the metal plate 28 and guide rollers 31, any carrier falling back into vessel 22. The material may be exposed episcopically or diascopically, in both cases the light received on the rotatable mirror 7 being reflected on to the glass plate 6. The diascopic means consists of a light source 8, a lens system 9 and an objective 10. The film 11 to be printed is reeled from spool 12 to 13. The episcopic device consists of light sources 14 and 15 lighting the image to be copied, which is placed against wall 16. The reflected light passes through an objective 17 provided with a shutter mechanism operated by a magnet 18. Wall 16 is perforated and a fan 19 is arranged behind it so that the image is held in place by suction. The wall 16 is hinged so that the image to be copied can be placed thereon. The material is held stationary at exposure station 6 by door contacts 41, 42 and 43 which are operated by control box 40.
Patent GB-247937-A (GB)
Title: Improvements in electric couplings for coils, valves and the like of wireless apparatus
IPC: H01J19/66
Filed: 1926-02-05
Abstract: 247,937. Liebermann, M., (trading as M³ller, C. H. F. [Firm of]),. (Assignees of Schmitt, F.). Feb. 20, 1925, [Convention date]. Condensers. - A coupling suitable for condensers &c. comprises a plug member 2 of insulating material carrying contact plates or strips 3 at its circumference that engage corresponding contacts 7 within a socket member 8 of insulating material. The contact-strips may be resilient and may be placed in recesses in the insulating body so that the plug body contacts with the socket. A screw or projection 10 serves to position the plug within the socket. The plug 2 may be hollow, the strips 3 being bent up therein and provided with slots for attachment of the leading- in wires. Specification 247,549, [Class 39 (i), Electric lamps, Arc &c.], is referred to. Reference has been directed by the Comptroller to Specifications 24514/95, [Class 39, Electric lamps &c.], 6733/02, and 195,185, [Class 39 (iii), Heating by electricity].
Patent GB-455953-A (GB)
Title: Exchangeable tread piece for heels
IPC: A43B21/37
Filed: 1936-02-05
Abstract: 455,953. Heel protectors. FRIEDRICH, H., 54, Feldstrasse, Kiel, Germany. Feb. 5, 1936, No. 3395. [Class 17 (iii)] An exchangeable tread piece i for heels is provided with a fastening clip k comprising two cramp irons p connected together and forming slots l with the tread piece. To the heel a is secured a heel piece b into which are recessed two metal plates c, h, the former being provided with a rectangular hole d having its corners recessed at e, and the latter having a rectangular hole f slightly longer than the holed. A rectangular sheet metal bolt n of approximately the same shape and size as the hole f is provided with a central hole s to engage a fitting tool, and lugs n to limit the projection of the ends of the bolt when placed in the slots l of the fastening clip. Before the tread piece is secured to the heel, the middle of the bolt is bent downwards, as in Fig. 3. The tread piece is then placed in position with the clip k projecting through the hole d. By means of the end q of the fitting tool, inserted through the hole o in the tread piece, the bolt is straightened and the tread piece secured. To release the tread piece, the middle of the bolt is bent upwards by means of the other end r of the fitting tool, the projection t engaging the hole s in the bolt, and ensuring that both ends of the bolt are withdrawn. A recess g is provided in the heel to allow the bolt to be bent.
Patent GB-579080-A (GB)
Title: An improvement in or relating to indicating mechanism for looms for weaving
IPC: D03D51/20
Filed: 1944-02-24
Abstract: 579,080. Indicating warp faults. WILDEN, E. Feb. 24, 1944, No. 3431. [Classes 142 (i) and 142 (ii)] An indicator b arranged to move from a hidden tc a visible position upon operation oi a mechanicallyoperating warp stop motion is connected to the latter by a flexible connection g. A weighted angle lever d<1>, d<2> normally maintains the indicator b within its housing but upon actuation holds it in the exposed position. Specifications 12889/06, [Class 142], and 8792/12, [Class 142 (i)], are referred to.
Patent GB-572065-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/10
Filed: 1944-02-25
Abstract: 572,065. Suction cleaners. HOOVER, Ltd. Feb. 25, 1944, Nos. 3509 and 3510. Convention dates, April 26, 1943. [Classes 8 (i) and 8 (ii)] In a fan suction cleaner of the type comprising a preliminary separator 12, Fig. 1, and a final filter 32, clogging of the latter is prevented by removing dirt deposited on the interior by a continuously rotating cleaning nozzle 46 at the end of a tubular rotating arm 47 geared to the motor shaft 28, suction being applied to the cleaning nozzle 46 from the inlet 23 via conduit 52, thereby permitting the filter bag dirt to be fed back into the preliminary separating chamber 12 and base 4. In a modification, Fig. 7, a valve 88 mounted on a vertical pivot 89 partly closes the main inlet port when the main nozzle 10 is idle, being actuated by a toggle lever arrangement carried by upper wall 83 of bellows 81 which expand on an increase in pressure at the main inlet 23. In a further modification, Fig. 5, the filter cleaning suction is supplied by a separate fan 27a mounted on an upward extension of the motor shaft, the fan being connected to the main inlet 23 by conduit 52a.