baber/WOPTO huggingface dataset:
Patent GB-124705-A (GB)
Title: Improvements in or relating to Power Transmission Apparatus.
Inventor: HENRY SCHADE VAN WESTRUM
IPC: B60B9/18
Filed: 1918-08-30
Abstract: 124,705. Westrum, H. S. van. March 26, 1918, [Convention date]. Pulleys; tension arrangements.-A resilient vehiclewheel, belt-pulley, &c. comprises a number of pistons supported by tension links and working in cylinders provided with air-inlet valves 3. The pistons 2, Fig. 3, are suspended on a spider 11 by links 7, which are in tension during the periods of cylinder compression, and the cylinders are formed on the pulley rim. As shown in Fig. 5, the pistons are similarly suspended from the rim and the cylinders form an integral hub member. In another modification, the cylinders are suspended by links on the rim and the pistons are integrally connected. The whole device may be contained in a ring placed within the hub of a vehicle wheel The Specification as open to inspection under Sect. 91 (3) (a) describes the use of the device to tension automatically a driving belt or chain. This subject-matter does not appear in the Specification as accepted.
Patent GB-835658-A (GB)
Title: Improvements in or relating to aircraft undercarriages
Inventor: CAMERON-JOHNSON ALAN
IPC: B64C25/12
Filed: 1958-05-02
Abstract: 835,658. Aircraft undercarriages. BRITISH MESSIER Ltd. May 2, 1958, No. 14149/58. Addition to 806,024. Drawings to Specification. Class 4. In an undercarriage according to the parent Specification, the leg incorporates an oleopneumatic shock absorber having a chamber which in operation contains fluid under pressure, and the booster jack comprises an hydraulic piston and cylinder unit having a pressure fluid chamber on one side of the piston, and there is provided means connecting the two chambers so that in operation, the pressures in them are equal. The connected chambers may both contain hydraulic fluid, or compressed air, and the connection may be made by flexible pipes, e.g. armoured rubber tubing, and/or non-flexible pipes, and/or internal passageways in the undercarriage parts, rotary fluid tight joints being provided where necessary.
Patent GB-247809-A (GB)
Title: Improvements in spark gaps for induction coils and the like
IPC: A61N1/32
Filed: 1925-05-29
Abstract: 247,809. Kewley. F. E., and Bower Electric, Ltd. May 29, 1925. Transformers.-In apparatus in which high-tension highfrequency currents for the production of violet rays in evacuated quartz electrodes are produced by discharging a condenser j, Fig. 3, in the secondary circuit i of an induction coil, through a spark gap e in series with the primary winding k of a high-frequency transformer, the secondary of which is connected to an electrode m, one element of the spark gap is mounted on the trembler b which interrupts the primary circuit h of the induction coil. As shown in Fig. 2, the trembler b carries in addition to the spark gap electrode e a contact b<1> co-operating with the screw d to complete tha primary circuit of the induction coil, the arrangement being such that adjustment of the screw d to vary the frequency of vibration of the trembler simultaneously varies the length of the spark gap in the secondary circuit. The other element e<1> of the spark gap is initially adjusted in a bracket 6<2>.
Patent GB-294736-A (GB)
Title: Compressed air device for conveying and consolidating concrete, mortar, sand and the like
IPC: B22C5/12
Filed: 1927-05-26
Abstract: 294,736. Ellis, G. B., (Badische Maschinen. fabrik (C Eisengiesserei vorm. G. Sebold und Sebold & Neff.). May 26, 1927. Feeding materials. -In apparatus for conveying and consolidating concrete, mortar, sand, &c., by means of compressed air, the pressure of the air and, if desired, the proportion of concrete, &c., to air is varied to obtain varying density in the material. The proportion of concrete, &c., may be varied by adjusting the position of a blade 50 above a rotating table 44 over the central part 12 of which a hopper is arranged. The material separated by the blade 50 falls into a recess 56 and is carried by air from jets 62 to the hose 64. The conveyed concrete, &c. may be separated from the compressed air in known manner by means of a bend of the nozzle adjacent its exit.
Patent GB-1424217-A (GB)
Title: Manually held vibratory power tools
IPC: B25D17/04
Filed: 1973-03-23
Abstract: 1424217 Power tools BRITISH LEYLAND UK Ltd 13 June 1974 [23 March 1973] 14271/73 Heading B4C A handle 13 formed of a urethane rubber is moulded in situ on to an upper body portion 12 of an air hammer to provide a shear ring portion 17 which reduces transmission of vibration to the handle. The grip portion 18 of the handle is offset from the longitudinal axis of the tool and is shaped to take the operator's hand.
Patent GB-942447-A (GB)
Title: Improvements relating to joints between adjacent members such as pipes
Inventor: MOORES ERIC JOHN
IPC: F16L23/20
Filed: 1959-04-27
Abstract: 942,447. Indicating leaks in joints. ENGLISH ELECTRIC CO. Ltd. April 21,1960 [April 27,1959], No. 14274/59. Heading G1S. [Also in Division F2] For leak detection, the flange 12 of a pipe 10 is provided with an aperture 23.
Patent GB-1033614-A (GB)
Title: Improvements in or relating to wire strippers
IPC: H02G1/12
Filed: 1962-04-13
Abstract: 1,033,614. Cable stripping devices. V. G. CARPENTER. April 16, 1963 [April 13, 1962], No. 14323/62. Heading H2C. [Also in Division B4] A cable-stripping device has a pair of notched jaws 60, 61 so pivoted that, as a cable held between them is withdrawn, the jaws are forced increasingly together to shear the insulation in their vicinity. An air-operated piston 62 closes the jaws initially. In other embodiments various types of spring arrangements are described for closing the jaws and in another a lever-operated pressure plate is provided. A plurality of sets of jaws having varying notch sizes may be mounted on a rotatable turret which has a central spring to operate all the jaws simultaneously. In all the embodiments the jaws may be supplied with cutting edges so that a cable may be cut to length before stripping off the insulation.
Patent GB-1331804-A (GB)
Title: Oil skimmer with oscillatable loop
IPC: E02B15/04
Filed: 1971-05-12
Abstract: 1331804 Removing oil from water E L BRILL and B M BRILL 12 May 1971 [25 May 1970] 14376/71 Heading BID Apparatus for skimming oil from the surface of water comprises a rigid loop 10, circular in cross-section, gripped and driven for rotation at one point A on its periphery by rollers 11, 12. The loop is pivotable about an axis tangential to the loop at the gripping point A, so that the loop may depend and dip just below the surface 15 of the water to be cleaned. Oil is attracted to the loop and sticks thereon, the oil 24 being removed from the loop as it is squeezed through the driving rollers. The loop may be circular in plane suitably with one or more outwardly directed kinks or may be longer than it is wide (Fig. 5, not shown). Alternatively a plurality of loops may be used. The material of the loop may be such that the loop has a smooth exterior or alternatively it may have a brush-like exterior, in which case the driving rollers also are brushlike structures (Figs. 8, 9, not shown).
Patent GB-422615-A (GB)
Title: Drop-seat garments
IPC: A41D13/02
Filed: 1934-05-12
Abstract: 422,615. Garments. DEHN, F. B., 103, Kingsway, London.-(Martin Bros. Co. ; 241, 1st Avenue North, Minneapolis, Minnesota, U.S.A.) May 12, 1934, No. 14447. [Class 141] A garment comprises a blouse portion 11 and a pants portion 12, which is formed with a drop seat 16 provided with belt straps 38, 39, adapted to be releasably secured together round the wearer's waist. To support the drop seat in its lowered position, auxiliary straps 42, 43 are provided which are each secured to one of the belt straps 38, 39, and to the upper marginal portion of the drop seat 16, the straps 42, 43, passing through guides 50, 51, secured to the tail portion 31 of the blouse 11. In a modification, the garment may be constructed in two pieces in which case the guides 50, 51 are attached to the pants 12 at the waistline thereof, preferably in proximity to the side seams 33.
Patent GB-1303669-A (GB)
IPC: B29C65/18
Filed: 1970-03-25
Abstract: 1303669 Making conical bags P REUTTER 25 March 1970 [25 March 1969] 14466/70 Heading B5D [Also in Division B8] Conical bags are made from a tubular web of material by sealing the web at an angle to its longitudinal axis. As shown, a flat web 2 from a roll 1 is wound round a tubular core 6 and sealed by a sealing or welding tool 7 to form a tubular web which is then simultaneously cut by a knife 13 and welded along lines parallel to and at each side of the cut by means of a welding tool 11 having two sealing or welding beams 12, thus sealing the base of one bag and the top of the preceding bag. Sufficient filling material to fill the lower part of the bag is fed through a funnel 20 and the core 6 into the tubular web after each welding and cutting operation. The bag is gathered above the filled lower part and provided with a clip (23). In a modification, unfilled, open-topped bags are produced by activating only one of the sealing beams 12 to seal the bottom of the bag.
Patent GB-1381891-A (GB)
Title: Inflatable finger and a drapery pleating and stretching apparatus including such fingers
IPC: D06J1/00
Filed: 1972-03-28
Abstract: 1381891 Pleating and stretching fabric J F HALES 28 March 1972 [9 Nov 1971] 14470/72 Heading D1S [Also in Division E2] An inflatable finger 10 for a drapery pleating and stretching apparatus comprises a digit-like flat hollow shell 29 having one open end and elongate openings 29a in the side walls thereof, a reinforcing sheath 30 within the shell 29 and extending across the openings 29a, a resilient gas impervious bladder 31 having interconnected side walls and which is inserted into the sheath 30 through the open end of the shell 29, and means 27 for mounting the shell to a drapery pleating and stretching apparatus whereby air under pressure can be introduced into and removed from the bladder. Preferably, the shell 29 is made of rigid plastics material, metal or heavy moulded rubber, the sheath 30 of an elastic fabric, e.g. spandex, and the bladder 31 of rubber. A thin polytetrafluoroethylene insert 32 is positioned within the bladder 31 to hold the side walls thereof separated. A plurality of fingers 10 are mounted by clamps 27 on a pleater bar 18 including a channel 19 to which an air hose 23, Fig. 1, is connected. The hose 23 is connected to a compressed air source 24 through a flow control valve 25 and a pressure relief valve 26. The inflatable fingers 10 interdigitate with rigid fingers 32 mounted on a swingable pleater bar 34 parallel to the bar 18. Clamping of the drapery between the fingers 10, 32 is effected by inflating the bladders 31 so that they expand through the openings 29a to clamp the pleats against the adjacent fingers 32. The apparatus comprises a horizontal hanger bar 14a, Fig. 6, extending between upright standards 12, 13. A drapery 15 is stretched to a desired length by suspending the drapery from the bar 14a, allowing the drapery to hang freely, clamping the drapery in a pleater assembly 11 comprising the bars 18, 34 and moving the bars 18, 34 and/or the bar 14a vertically to effect stretching.
Patent GB-578658-A (GB)
Title: Densifying finely divided materials
IPC: C01B31/08
Filed: 1943-09-04
Abstract: 578,658. Carbon. SHAWINIGAN CHEMICALS, Ltd. Sept. 4, 1943, No. 14471. Convention date, June 4. Drawings to Specification. [Class 90] [Also in Groups V and XXX] Carbon black is densified, by compression between porous converging belts, from say 11b. per cubic foot to 6“ lbs. per cubic foot, and then to 12¢ lbs. per cubic foot between other porous converging belts.
Patent GB-769765-A (GB)
Title: Improvements in plant for the dry-cooling of coke
IPC: C10B39/02
Filed: 1955-05-19
Abstract: 769,765. Screening apparatus. KOPPERS GES, H. May 19, 1955 [July 30, 1954], No. 14497/55. Addition to 762,631. Class 117 [Also in Group XII] In plant for the dry-cooling of coke of the type disclosed in the parent Specification, each of the inclined containers 9 disposed within the housings 6 is formed with a bottom grate section 42, the serrated bars of which allow the passage of small coke into a producer 52 before the coke has been appreciably cooled by the inert cooling gas. As in the prior Specification the central axial grate 19 acts as a classifier, allowing the passage therethrough of medium and small coke, and is twisted through 90 degrees to divide the lower part of the container into two compartments one of which will contain the large coke and the other the medium coke retained by the grate 42. The coke is discharged through rotary valves 44 on to a conveyer 36, and the openings for the valves may be closed by hydraulically or pneumatically operated cover plates 45.
Patent GB-542064-A (GB)
Title: Improvements in and relating to electrical circuit breakers and switchgear of the air or gas blast kind
IPC: H02B1/00
Filed: 1940-09-27
Abstract: 542,064. Gas-blast switches; switchgear structures. DAVIES, D. R., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Sept. 27, 1940, No. 14641. Addition to 528,429, [Class 38 (v)] The circuit-breaker of the parent Specification is modified in that firstly, the arc chute 2 is movably mounted within the earthed casing 1 on means adapted to guide the chute through a closable opening in the casing wall, and, secondly, is arranged as one unit of a switchgear structure, the other unit of which includes busbars 61, 66 and isolating switches as 63 for connecting them with the breaker. A connecting link 16, insulated for example as in Specification 354,350, [Group XXXVI], and carrying a current transformer 18 in a removable bell 17, connects the isolating switch 63 with the fixed breaker contact 3 and is removable to permit shipment of the two units as separate parts. The movable contact 4 operated by a servomotor 9 separates from the contact 3 in the chute 2 and a blast from reservoir 12 passes along pipe 14. The side plates 19 of the chute are extended and carry rollers 21, 22 sliding on rails 23 which, in turn, are supported by rollers 24 ... 27 on the casing 1 and have stops 28, 29 whereby, when the door 30 is opened, the parts may be pulled out to the position shown. The discharge conduit 31, extends into the expansion chamber 32 from the rear wall of the chute, which carries bakelized fabric bolts 33, 34 passing through bell 17 for clamping it tightly against the flange 36 of contact 3. The lower end of conductor 7 connects with a contact for a lowerable potential transformer 54 and with an annular metal member 50 forming part of ran oil-poor cableisolating switch constructed as in Specification 523,983, the lower part 42a of which is lowerable for inspection of contacts and has an oilretaining gasket 49. The busbar-isolating switches are similar. The Provisional Specification states also that the latter may be servomotor-operated from a control desk, and refers to Specification 523,420 as an alternative construction of isolating switch,
Patent GB-572740-A (GB)
Title: Improvements in and relating to methods of treating materials and articles to renderthem water-repellent
IPC: C03C25/40
Filed: 1941-11-14
Abstract: Mica is rendered water-repellant by treatment with an organo-silicon halide in vapour form.  Residual acidity may be neutralized by a subsequent treatment with the vapour of ammonia, methylamine, ethylamine, diethylamine, propylamine or dipropylamine.  Examples of such halides are methyl-, ethyl-, propyl-, butyl-, phenyl-, phenylmethyl- and tolyl-silicon halides and halosilanes.  Compounds particularly specified are (CH3)SiCl3, (CH3)2SiCl2 and (CH3)2HSiCl.
Patent GB-1066401-A (GB)
Title: Process for the production of ar-aliphatic di-carbinols
IPC: C07C31/20
Filed: 1964-04-09
Abstract: Dicarbinols Ar(CR2OH)2, where Ar is aryl (possibly alkyl-substituted) and R is alkyl, are made by oxidizing Ar(CHR2)2 with O2, reducing the hydroperoxides so formed, crystallizing out the desired dicarbinol at a lower temperature and returning the residual mixture to the oxidation stage, hydrocarbon starting material having been added in the reduction or crystallization stage.  The production of m-C6H4(CMe2OH)2 is exemplified.
Patent GB-442114-A (GB)
Title: Improvements in or relating to lamp holders for electric lights for sewing machines
IPC: H01L35/00
Filed: 1935-05-21
Abstract: 442,114. Two-part couplings. PFAFF AKT.-GES., G. M., 140, Wittelsbacher Strasse, Kaiserslautern, Germany. May 21, 1935, No. 14861. Convention date, Dec. 6, 1934. [Class 38 (i)] A lamp holder, constructed to receive bulbs having screwthreaded caps for use as a sewing-machine light, is modified to receive soffit or festoon lamps having a cap at each end. As shown the end caps 6, 7 of the soffit lamp 1 are engaged between two metal arms 2, 3 which are mounted in position by metal brackets 11, 12 riveted thereto, the brackets being secured within the upper part of a reflector 13 by two screws 15 which secure the reflector to a body portion 10. The inner ends of the arms 2, 3 pass through an aperture 16 which would otherwise receive a screw-threaded lamp cap, and make contact with resilient strip metal contacts 8, 9, the lower end of the contact strip 9 having been straightened from its original offset position, indicated by broken lines, wherein it constituted the central contact of the screwthreaded socket.
Patent GB-232816-A (GB)
Title: Improvements in apparatus for supplying breathing gas to the lungs
IPC: A62B7/02
Filed: 1924-06-20
Abstract: 232,816. Hanseatische Apparatebau- Ges. vorm. L. von Bremen & Co., and Heide, M. von der. June 20, 1924. Respirators.-In breathing-apparatus of the type in which the flow of oxygen from a high-pressure reservoir varies with the needs of the user, the accumulation in the apparatus of impurities, such as nitrogen, with which the oxygen may be contaminated is prevented by causing part of the expired air to be expelled into the atmosphere at each expiration of the user. As shown in the Figure, the cylindrical body a connected by a short pipe d to the mouthpiece has at one end a chamber e with which it communicates through a non-return valve f pressed against its seat by a spring g. A small opening o connects the chamber e with the atmosphere, and the arrangement is such that at each expiration of the user the valve f is lifted from its seat, part of the exhaled air escaping into the atmosphere. In addition to the orifice o there may be provided a valve i operated against the action of a spring m by pressing a button l at the end of the spindle k. The valve i may be operated when it is desired to cause the expulsion of a larger quantity of gas than the size of the orifice o permits.
Patent GB-723688-A (GB)
Title: Improved control device for a prime mover and a load
IPC: G05D17/02
Filed: 1952-06-16
Abstract: 723,688. Propelling aircraft. GENERAL MOTORS CORPORATION. June 16, 1952 [June 29, 1951], No. 15042/52. Class 4. [Also in Groups XXXVI and XXXVIII] The torque transmitted by a driving shaft is determined by measuring the angular twist of the shaft by an electronic device which compares the phase positions of a point on the driving shaft with a point on a reference shaft, rotating at the same speed but on no.load and the measurement so obtained is used to disconnect the load when the driving torque falls below a predetermined value. Construction. The output shaft 10 (Figs. 2, 3) of an engine is coupled to a load shaft 11 by a torque shaft 12 which is covered by a hollow reference shaft 15, secured to shaft 12 by a hub 16 at one end and free to move relative to the shaft 12 at the other end. The shafts 12, 15 carry toothed flanges 13, 18 respectively of the same diameter and having the same number of teeth. Magnetic pick-up heads 27, 28 are assembled adjacent to the toothed flanges 13, 18 respectively, and the phase difference between pulses produced in the pick-up heads by the teeth on the flanges is indicative of the twist on shaft 12 and hence a measure of the torque transmitted. A further pickup head 29 is associated with flange 18 for calibration purposes. A damper device 22 to reduce vibrations comprises a bearing 23 mounted between the shaft 15 and a neoprene damper 24 secured to a dust tube 25. Electrical circuit (Fig. 4). The pulses from reference head 28 are squared and clipped by valves 46, 47 and rectified by diode 48 to trigger a normally-conducting valve 62 of a multivibrator. The pulses from measuring head 27 are similarly squared and clipped by valves 53, 54 and rectified by diode 55 to trigger valve 63 of the multivibrator. Thus a meter 66 in the cathode lead of valve 63 indicates the time during which valve 63 is conducting, which is the time between a pulse from the reference head 28 and one from the measuring head 27. A manual switch 56 changes from pick-up 27 to 29 for calibration purposes. The apparatus is used to disconnect the load when the torque transmitted is below a predetermined value by feeding negative pulses from the anode of valve 63 through an averaging circuit to the grid of a valve 76, so that at low torques the negative bias on this grid is insufficient to cut off the anode current, which energizes a relay 78 to disconnect the load.
Patent GB-956294-A (GB)
Title: Improvements in rotary electric switches
IPC: H01H19/56
Filed: 1961-04-26
Abstract: 956,294. Mechanical switches, without quickaction; switch contacts. COMPAGNIE FRANCAISE THOMSON-HOUSTON. April 26, 1961 [May 4, 1960], No. 15098/61. Heading H2B. A rotary switch has a contact carrier 1 on a spindle 7, the carrier having spaced radial lugs la, 16 with a resilient ring 2 arranged in the space between the two sets of lugs. Contacts 3 straddle the ring 2 and have their limbs 3a, 3b disposed in slots 1c, 1d in the lugs 1a 1b. The contacts 3 co-operate with fixed contacts 5, 5a on stators 4, 4<SP>1</SP> separated by a spacer 6. The ring 2 is preferably of a silicone elastomer and provides the contact pressure. Several similar switches, with a common spindle 7, may be arranged with co-operating projections and recesses E, E<SP>1</SP>, one of which projections is embraced by one limb of a threelimb spring 8 which holds the stators stationary when the spindle is rotated.
Patent GB-561062-A (GB)
Title: Aerofoil construction
IPC: B64C3/00
Filed: 1942-10-28
Abstract: 561,062. Aircraft wings. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., SIR W. G., and LLOYD, J. Oct. 28, 1942, No. 15111. [Class 4] In an aircraft wing of the kind in which the main portion is formec of an outer smooth sheet-metal cover ing backed by corrugated sheet metal secured to transverse ribs, the main portion is formed by upper and lower parts each comprising the outer covering, the corrugated backing and upper or lower rib parts, the upper rib parts being secured to the lower rib parts. The spar-less wing shown comprises a main portion 11 and a rear portion 12, the main portion being constructed in two parts, upper and lower, and each part comprising 'a smooth sheet-metal outer covering 18 riveted to a corrugated metal sheet 19 which is riveted to sheet-metal rib-parts 20. Each rib-part comprises a pair of -spaced plates reinforced by members 22 and having upper and lower flanges 23, 39, the flanges 23 being riveted to the corrugated sheet 19. In assembling, the. leading edges of the .,main wing parts are brought together. while the trailing edges are separated to provide access and the leading edges are bolted together at 35, the bolts passing through plates 36 secured to the ribparts. The two wing-parts are then completely brought together and the rib-parts are further bolted together by bolts 40. passing through the flanges 39. The leading edges of the sheets 18, 19 of one part abut those of the other part and are reinforced by a plate '37. The web 30 at the front of the rear part 12 is secured by angle-bars 31 to the ribs 20 and the sheet 18. The corrugated members 19 may be made up of a number of separate flanged V-section parts, the flanges of adjacent parts being secured together and to the outer sheet 18 by screws. The .gauge of the sheets 18 may be slightly thicker than that-of the corrugated members 19. Specification 525,666 is referred to.