baber/WOPTO huggingface dataset:
Patent GB-1321785-A (GB)
Title: Seat
IPC: B60N2/50
Filed: 1972-02-17
Abstract: 1321785 Resiliently mounted seats BREMSHEY A G 17 Feb 1972 [20 March 1971] 7438/72 Headings A4J and A4U  In a vehicle seat, seat frame rails 3 are secured to downward steps 2 of a carrier 1, which is supported for vertical movement under the influence of an energy store 21 of adjustable resilience, by laterally arranged pairs of scissors levers 10, 11 which connect the carrier 1 to a subframe 9, and in the lowest position of the seat inter-connected pair's of the levers are in line with each other and the steps 2 lie in the same plane as and, surround the sub-frame 9. The forward ends of the scissors levers rotate on fixed pins 28, 38, and pins 29, 43, connecting the rear ends, run in U-section guide rails and carry load-carrying balls bearing on the webs of the rails. The ends 11' of the levers 11 are offset inwardly. The upper end of the energy store 21 is pivoted at 31 to a central U-section beam 27 parallel to the levers 11 and welded to the pin 29, and the lower end is connected by a  pin 20, which is adjustable along a slot 18 in walls 19 in a housing 14, to an eye-piece 22 which is movable by a screw 24 and operating knob 25 to adjust the resilience of the store to suit the weight of the seat occupant by altering the length of the spring. An end of the pin 20 co-operates with a scale 26 on the side of the housing 14. The bearing point of the upper end of the energy store 21, also, may be adjusted in the modification shown in Fig. 7 by a screw rod 47 carried by the pin 29 and operable by a portion 47' to move screws 50, which carry a bearing eye 51, along guide slots 50 in the limbs of the beam 27. One of the rails 3 of the seat frame has rack teeth for horizontal adjustment of the seat on actuation of a release handle 8, and the rake of the seat back 7 is adjustable after release of the handle 8. (For Figures see next page)
Patent GB-972952-A (GB)
Title: Improvements in or relating to foamed epoxy resin compositions
IPC: C08J9/14
Filed: 1963-02-25
Abstract: Epoxy resin foams are made by adding, as curing agent, trinaphthyl borate, triphenyl borate, or a substituted triphenyl borate having as substituent a halogen atom or C1-20 alkyl radical, to a mixture of an epoxidised polyolefinic compound and, as blowing agent, a hydrocarbon, halogenated hydrocarbon or ether boiling at 25 to 50 DEG C.  The epoxidised polyolefinic compound may be derived from dicyclopentadiene, vinylcyclohexene, polybutadiene, polyisoprene, unsaturated glycerides or biscyclohexene derivatives; it need be only partially epoxidised.  The exothermic reaction may be moderated by addition of glycol boric anhydrides or glycol biborates.  Other specified additives are silicone oils, e.g. silicone-glycol copolymers, antimony oxide and alumina.  Generally 40-70% by weight of epoxy compound, 10-45% of blowing agent and 10-30% of curing agent are used.  The products may be post-cured, e.g. at 100 DEG C. for 2 hours.  Specifications 877,136 and 877,137 are referred to.
Patent GB-746703-A (GB)
Title: Improvements in or relating to speed reduction gears
IPC: F16H57/021
Filed: 1954-03-15
Abstract: 746,703. Gear casings. BLACKBURN & GENERAL AIRCRAFT, Ltd., and BELL, F. R., March 15, 1954, No. 7493/54. Class 80(1) A gear casing comprises two end sections 1, 7 which may be directly connected together to contain a one-stage reduction gear, Fig. 1 (not shown), or may be connected to one or more intermediate sections to contain two or more stages of gearing. In the three-stage gear shown, two similar but relatively inverted intermediate sections 30. 20 are interposed between the end sections 1, 7 and have' bearing support members 19, 24 secured thereto. The end sections 1, 7 carry bearings 5-6 and 10 for the respective input and output members 13 and 11 and also carry bearing 4, 12 which support the intermediate shafts. When the casing is to contain a one-stage gear, the intermediate secsections 30, 20 are removed and the end section 1, 7 directly joined so that the bearings 4, 12 support the inner ends of the output and input members respectively. When the casing is to contain a two-stage gear, the intermediate section 20 is removed and the end section 7 is inverted and joined to the section 30 so that the input and output members 13, 11 are aligned and the single intermediate shaft is carried in the bearings 4, 12.
Patent GB-106341-A (GB)
Title: Potato Harvesting Machine.
Inventor: STEWART ALASTAIR CAMPBELL
IPC: A01D17/10
Filed: 1916-11-27
Abstract: 106,341. Stewart, A. C., and McAinsh, J. Nov. 27, 1916. Potato diggers and harvesters.-A potato raising and harvesting device supported by a main frame 1 carried on a pair of front wheels 2 and a rear wheel 3 comprises an inclined digging share or shares 5 by which the tubers are lifted on to an inclined and shaking elevating band 6 which carries them to shoots at the rear of the machine by which they are delivered to sorting-apparatus, and then into receptacles, or directly on to the ground. The band 6 consists of a series of crossbars connected together by links so as to leave gaps to permit the earth and small stones to fall away from the potatoes. The links form sprocket chains which pass over wheels 13 driven from the axle of the wheels 2. The front sprockets 8 for the band are carried on a shaft mounted in bearings in flexible hangers 16 and, at one or both sides of the machine, the hanger is adapted to be engaged by projections on a wheel driven from the axle of the wheels 2, thus giving a vibratory movement to the band 6. Side rails 22 confine the potatoes to the band and a deflecting-arch 23 prevents the soil falling upon the returning portion of the band. The digging-share 5 may be vertically adjustable. Two drills may be dealt with at the same time.
Patent GB-295560-A (GB)
Title: Improvements in bag making and filling machines
IPC: B65B29/02
Filed: 1928-03-12
Abstract: 295,560. Dalton, J. T., and Wright, R. H. March 12, 1928. Sacks, sewing; thread cutters.-In a machine for packaging tea &c. in which charges of tea are deposited in a longitudinally folded strip of material, the longitudinal free edges of the strip are sewn together, the strip is severed into sections, and the transverse severed edges are successively sewn to make a bag. Tags may be fed to the bags and be attached to them by extensions of the sewing threads. A folded muslin strip x is seized in front and behind the charge of tea by pairs of grippers 205<a>, Fig. 64, mounted on a conveyer. A first sewing machine 280 sews the longitudinal edge x<1> of the strip prior to a rotary cutter 300, 301 severing a bag length therefrom. The grippers 205a turn the severed bag length through a right angle to permit a second sewing machine 328, Fig. 64a, to secure one transverse edge x<2>, the bag length being then turned half a turn to present the remaining free edge x<3> to a third sewing machine 363. In the meantime, a tag T has been fed from a magazine, 379 and positioned adjacent the third sewing machine which sews a thread through the tag before sewing along the edge of the bag. The machine is shown in plan in Fig. 3.. Strip sewing and severing mechanism. The longitudinal edge x<1> of the charged strip is sewn by a machine 280 in which the presser foot 286, Fig. 31, and co-operating plate 285 are arranged vertically and the presser foot is mounted on a spring pressed arm 288 to allow it to be moved aside when the needle requires threading. Rotary blades 300, 301, Figs. 3 and 6, mounted on a shaft 304 and driven in opposite directions sever the sewn strip, the blades being displaced along their shaft 304 by cam mechanism 317 to keep pace with the advancing strip during the severing operation. End sewing mechanisms. The grippers are now turned to bring a severed edge of the strip into the horizontal position ready for the sewing of the second edge x<2> by the machine 328 which is similar to the machine 280. A tucking finner 329 on a spring pressed member 330 controlled by the mountings of the gripping fingers presses the fabric behind the presser foot of the machine which acts continuously, the threads between the bag sections being severed subsequently. This is effected by a rotating blade co-operating with a sharpened edge 345, Fig. 51, on a casing 342, the blade being mounted on a shaft 337. The severing operation leaves two free ends of thread which are successively sucked into the casing 342 and severed by rotary blades 357, 358 coacting with a fixed resilient blade 349. The bag length is now turned through half a turn to bring the other severed edge to the third sewing machine 363 which effects the sewing x<3>. This machine is similar to the machine 328 but works at a higher speed to compensate for the increased speed of the grippers.
Patent GB-576983-A (GB)
Title: Rolling tapered tubes
IPC: B21C37/18
Filed: 1944-04-25
Abstract: 576,983. Rolling tubes. THURSTON, A. P. (Rockrite Processes, Inc.). April 25, 1944, No. 7668. [Class 83 (iv)] Taper tubes are rolled from a cylindrical blank 10 having a butt end that is afterwards cut off, by a series of mandrels in the passes of segmental and oscillating rolls, the rolling at each stage being preferably pilger rolling. At the commencement of rolling, the blank is positioned in relation to the tag end 11a of a mandrel 11 as shown in Fig. 1, and is subjected to a series of passes by the active part 12 of the first set of rolls. The rolling is performed cold and the blank is accurately machined and polished prior to rolling. Between each pass the blank is given a part rotation and a forward feed relatively to the mandrel. The rolling at this stage terminates when the parts 12a of the rolls have closely approached the butt end of the blank. The mandrel may be removed and .relieved from the point 11c as by grinding to enable this part to be repositioned at the leading end of the tube, but separate mandrels are preferably employed for the following stages. In the next stage, Fig. 3, -the part 11c of the mandrel is positioned near the forward end of the now reduced cylindrical part of the tube and pilger rolling is effected by a second roll pass .with shallower grooves, the rolling being stopped after a slight overlap 10b, 10c with the part tapered at the first stage to effect a blending. In the example illustrated, a third rolling stage follows, but more than three stages may be employed. The last roll pass has an extension to smooth such cylindrical extension as forms a .continuation of the last tapered portion. If annealing be necessary, it is effected in a reducing atmosphere such as hydrogen in the case of steel tubes. Specification 333,281, [Class 83 (iv)], is referred to.
Patent GB-179025-A (GB)
Title: Improvements in and relating to grinding or crushing mills
IPC: B02C7/10
Filed: 1921-03-11
Abstract: 179,025. Torrance, J. B., and Torrance & Sons, Ltd. March 11, 1921. Disc and like mills.-In a mill with co-operating flat grinding-members, the member receiving an orbital motion is given a drive of rotation through abaxial members so coupled that the angular point of drive between the members remains unchanged and moves out of phase with the orbital movement. T h e abaxial members may be connected by a radiallymovable coupling. The boss e, Fig. 1, of the disc f carrying the lower stone g is formed with slots to receive pins h on the ball-head d of a sleeve a rotatably mounted on a crank or eccentric pin b on the upper end of the mill-shaft c. A wheel l rotatably mounted on the outside of the shaft bearing m. is provided with a pin or lug i to engage a radial slot j in a ring-like expansion n of the lower end of the sleeve a. The shaft c is driven by worm-gearing s, and the thrust between the sleeve a and the shaft c is taken by a ballthrust bearing w in the sleeve a. A star-wheel x, rotatably mounted upon the neck of the sleeve a and engaging an internal ring-gear y fixed in the centre of the trough z, may operate a scraper 1 to sweep out the trough. A hinged scraper is yieldingly pressed against the edge of the running stone g. The wheel l is driven by a pinion 5 on the driving-shaft 12, and a wheel 6 on the neck of the pinion 5 gears with a wheel 7 on the shaft 8 of the worm meshing with a wheel s. Oil is fed by a pipe 28 to a tray on the wheel x whence it is distributed to the shaft c. In the eccentric-sleeve type of mill, the lower portion 15. Fig. 13, of the sleeve 16 is formed externally concentric with the bore that receives the shaft 17 carrying the running stone, and on the sleeve immediately above the external concentric portion thereof is rotatably mounted a wheel 18 with pin-and-slot connection 20, 21 with the drivesleeve 19. Pins 24 on the shaft 17 engage in diametrically-opposite slots 22 in a ring-like expansion 23 of the lower end of the sleeve 19. Specification 134,618 is referred to.
Patent GB-910063-A (GB)
Title: Semi-conductor devices
IPC: H01L29/00
Filed: 1961-03-03
Abstract: The following solders (compositions by weight) are used in making semiconductor diodes (see Group XXXVI): ..80% gold, 20% tin .and.97% gold, 3% silicon
Patent GB-281916-A (GB)
Title: Improvements in and relating to lamps for vehicles
IPC: B60Q1/24
Filed: 1927-03-21
Abstract: 281,916. Macrae, J. D., Macdonald, A., and Macrae K. A. March 21, 1927. Vehicle lamps; lighting, systems oj; obturators.-An auxiliary lamp 20 is arranged on one or both sides of a motor vehicle, behind the headlights 10 and is operative whilst the headlights are also fully operative to illuminate a background comprising substantially the whole of the side of the vehicle and the road at the side, the auxiliary lamp giving a wide beam both longitudinally and laterally of the vehicle, while the source of light is invisible from the front and side. The auxiliary lamp comprises a circular reflecting base plate 23 having a stem 24 adapted to be secured to the body of the vehicle and constituting a holder for the electric lamp bulb 27 which is enclosed by a glass 28 detachably secured to the base plate by a ring 29. A semi-cylindrical screen 31 having a reflecting inner surface is arranged above the bulb to project the light fore-and-aft of the vehicle and downwards. The screen 31 carries by means of nuts 33 a semi-circular obturator 34 for cutting off lateral rays from the lamp above the level of the bulb. The auxiliary lamps may be readily detachable for use as inspection lamps, and two bulbs or a double-filament bulb may be provided in one auxiliary lamp for use as a " park ing " light. Specifications 201,436 and 257,190 are referred to.
Patent GB-550753-A (GB)
Title: Improvements in or relating to variable-pitch airscrews
IPC: B64C11/42
Filed: 1941-06-20
Abstract: 550,753. Screw propellers. COVERLEY, R. H., and ARNOTT, D. D. June 20, 1941, No. 7831. [Class 114] [Also in Group XXVI] In a variable pitch screw propeller for aircraft, of the kind in which adjustment of the blades is effected by a hydraulic cylinder moving over a fixed piston at the front of the hub, the cylinder 10 is formed as a pressing with a domed end' 11 and a radial flange 14 and the cover 16 is formed with a central opening to which is butt welded a tubular extension 22 which forms a guide for the movement of the cylinder over the fixed piston. The flange 14 may be made separate from the cylinders 10 and butt welded thereto at 35. This flange is provided with an internal conical surface 15 co-operating with a V-groove formed in the flange 18 of the cover, to provide a channel of rectangular section to receive a cupleather 21 directed at an angle to the axis of the cylinder. A sealing bush 25 of plastic or synthetic resin may be secured in the extension 22 between it and the shaft carrying the piston. The cylinder 10 is operatively connected to each propeller blade by a link bolt 28 screwed into a bracket 26 fixed to the cover 16, the reduced end 31 of the bolt engaging aligned holes in the flanges 14, 18. A slot 29 and hole 30 provide for pivoted attachment of the bolt with a connecting link for operating the blade. Adjustment of the position of the slot and hole can be effected by turning the bolt in the bracket and by the insertion of a shim 34 between the bracket and the flange 18.
Patent GB-1414260-A (GB)
Title: Process and apparatus for quadraphonic transmission
IPC: H04J1/00
Filed: 1973-02-16
Abstract: 1414260 Quadraphonic transmission ELEKTROMEOHANIKAI VALLALAT 16 Feb 1973 [28 Dec 1972] 7848/73 Heading H4L Signals 1, 2, 3, 4 from a rectangular array of microphones 1-4 are coded and transmitted (for example, in frequency multiplex) to four loudspeakers 8, 9, 10, 11 respectively receiving them as double signals 1+2, 2+3, 3+4 and 4+1. The rectangular array of speakers is turned through 45 degrees relative to the microphone array in order to reproduce from virtual sources 12, 13, 14, 15 a sound pattern which is identical to, and has the same orientation as, that sensed by the microphones. A coder 5 turns the four microphone signals into three composite signals, the first being a sum of all four (1+2+3+4), the second and third being the diagonal differences (1-3, 2-4). A main channel of 30 Hz to 15 kHz (1, Fig. 2, not shown) carries the sum signal, and quadrature subcarriers (4) centred on 38 kHz carry the other two signals. Pilots at 19 kHz and 38 kHz are included, the latter to operate stereoquadraphonic mode switching circuits at the receiver. The transmission link 6 is radio or line. The decoder 7 turns the three composite signals into the four loud-speaker signals in an unspecified manner.
Patent GB-307706-A (GB)
Title: Improvements in and relating to the manufacture of metal wheel discs
IPC: B21H1/02
Filed: 1929-03-11
Abstract: 307,706. Kronenberg, R. March 9, 1928, [Convention date]. Wheels; hoops and rings.-Rings, particularly for making wheel discs are rolled from strip stock by thinning one edge and thus causing the strip to bend into ring shape. The ends are welded together to complete the ring and this may then be flanged and attached to a brake drum 35, Fig. 2, or be otherwise built into wheel form. A long strip may be rolled into a helix which is cut into rings for welding up. The rolling may be effected by conical rolls 22, 23, Fig. 1, the mounting 24 for the upper roll being adjusted on arcuate ways to vary the pass. The work is supported during rolling by a roll 29 engaging its inner edge, and also by a projection 38, the roll and projection being mounted on a slide adjustable towards and from the conical rolls.
Patent GB-1396471-A (GB)
Title: Exposive fuse-cord
IPC: C06C5/00
Filed: 1973-02-19
Abstract: 1396471 Fuse-cords IMPERIAL CHEMICAL INDUSTRIES Ltd 8 Jan 1974 [19 Feb 1973] 7994/73 Heading F3A A fuse-cord comprises an explosive core and an outer waterproofing sheath of a copolymer of ethylene and from 7 to 30% by weight of the copolymer of vinyl acetate or an alkyl acrylate or an alkyl methacrylate wherein the alkyl groups contain 1 to 4 carbon atoms. The copolymer has a melt flow index of from 0À1 to 25 and contains particulate carbon for earthing electrostatic charges. The core is PETN and the sheath is one which has been extruded at a temperature below the melting point of PETN. The core is wrapped in a fibrillated polypropylene yarn coated with a hot melt adhesive comprising a copolymer of ethylene and vinyl acetate.
Patent GB-512728-A (GB)
Title: Improvements in servomotor brake mechanism for road vehicles
IPC: B60T13/24
Filed: 1938-03-15
Abstract: 512,728. Fluid-pressure brakes. JOHNSON, M. E. March 15, 1938, Ivo. 8011. [Class 103 (i)] A master valve for controlling brake servomotors on tractors and trailer vehicles comprises a pair of coaxial valve pistons controlling two sets of ports in a casing, in opposite senses, one set being for one servo-motor and the other for a relay valve that controls the other servomotor the system being such that the mastervalve effects a variation of pressure at the relay valve inverse to that effected in the servo-motor directly controlled by the mastervalve. The vacuum system shown comprises on the tractor vehicle, a reservoir e3 connected through a non-return valve e<4> to the engine induction pipe e<2> and by pipe e<1> to the mastervalve c which is connected also by pipe g<2> to the servo-motor o and to the pipe f<2>. A pipe on the trailer coupled to the pipe f<2> is connected through a non-return valve to a reservoir and to a relay valve which is connected also to the trailer reservoir and servo-motor. The relay valve may be of the kind described in Specification 506,809 and adapted to connect the trailer servo-motor to the trailer reservoir and to the atmosphere to apply and release the brakes respectively. The master-valve comprises a casing c connected by rod i to the pedal 1 and containing a pair of connected pistons a, b connected by rod j to a pull-rod m leading to the brakes and to the lever n of the servo-motor o, whereby the tractor brakes may be manually applied and the application thereof by the servo-motor tends to restore the valve to the normal position. The pistons a, b are each connected by a tapered part to a head a<1>, b<1> similarly to the valve described in Specification 450,697. Annular chambers e, f, g, h are connected respectively to the reservoir e<3>, the pipe f<2>, the servo-motor o and atmosphere. Normally, as shown conical parts b<2>, a<2> are respectively seated and unseated with respect to chamber e so that the servo-motor o and pipe f<2> are respectively connected to atmosphere and to the reservoir e<3>. Operation of the pedal moves the casing relatively to the pistons thus throttling and finally closing these connections while connecting the servomotor and pipe f<2> respectively to the reservoir and atmosphere, thus applying the brakes. Projections. a<3>, b<3> on the heads a, b<1>, which enter the chamber e with small clearance cause the trailer brakes to come into operation slightly in advance of the tractor brakes. The relay valve may be provided for the tractor brakes instead of the trailer brakes. Fluid under pressure may be used instead of vacuum.
Patent GB-845614-A (GB)
Title: Improvements in or relating to dial switches for use with party-line telephone instruments
Inventor: LENEY ERIC NORMAN
IPC: H04M1/54
Filed: 1958-03-13
Abstract: 845,614. Impulse transmitters. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Feb. 19, 1959 [March 13, 1958], No. 8033/58. Class 40 (4). A dial, for use at a party-line substation in order to transmit signals indicative of the identity of the calling party as a result of dialling a prefix digit which is the same for all subscribers on the line, comprises in addition to the regular impulsing springs a second set of impulsing springs controlled by an individual impulsing wheel and an associated masking cam, the arrangements being such that only when the dial is advanced to a prescribed digital position is the masking cam positioned to permit said second set of impulsing springs to make contact and thereafter as the dial returns to normal to enable the impulsing wheel to interrupt said second set of impulsing springs according to a pattern determined by the configuration of the profile of the impulsing wheel. As shown, a normal trigger dial (seen from the rear in the drawings) is modified for use in the party-line system described in Specification 837,653 by the addition of a second set of impulsing springs 36, 37 with an associated impulsing wheel 31 and masking cam 32, and the provision of a tongue 34 on the bead 18 of the switching lever 19 so that the two pairs of off-normal contacts 13, 14 and 15, 16 are operated in sequence. When the dial is advanced to the " O " position, bead 18 engages a pin 33 on masking cam 32 and moves it to allow springs 36, 37 to make contact, Fig. 3. During the return movement of the dial, springs 36, 37 send a pattern of impulses determined by the configuration of impulsing wheel 31.