baber/WOPTO huggingface dataset:
Patent GB-1300662-A (GB)
Title: A gas laser discharge tube
IPC: H01S3/038
Filed: 1970-04-23
Abstract: 1300662 Lasers COMPAGNIE GENERALE D'ELECTRICITE 23 April 1970 [24 April 1969] 19655/70 Heading H1C A gas laser has an annular active medium, e.g. of CO 2 , confined between two conductive coaxial discharge electrodes 1, 5, connected to a line 9 from a power supply 8 via a gastight coaxial socket 11, 12. The inner electrode may be a rod or a tube. A further socket 14, 15, allows the electrodes to be shorted together. Gas ports T 1 , T 2  are provided, and the active medium may be stationary or in flow. The laser is closed by Brewster windows 6, 7. In Fig. 2, the coaxial power supply socket 19, 20, 21 is aligned with the inner electrode 17 and supports a resonator mirror 22. The outer electrode 18 is sheathed by insulating tube 24 which supports a second mirror 24. A short circuiting socket is again provided. The laser may be arranged in an amplifying chain, Fig. 3 (not shown), in which a Q switched laser acts as a generator and the active media of the chain are sequentially pumped. Laser devices of differing apertures may be used in the chain if matched by afocal lens systems. The laser may also be used continuously, and the electrodes may be cooled by fluid supplied through ducts (not shown).
Patent GB-733906-A (GB)
Title: Improvements in or relating to gas discharge lamps
IPC: H01J61/30
Filed: 1953-07-15
Abstract: 733,906. Discharge lamps. HERAEUS QUARZSCHMELZE GES. July 15, 1953 [July 15, 1952], No. 19665/53. Class 39 (1). [Also in Group XXIII] Envelopes for gas-discharge lamps, and tubes for the manufacture of such envelopes, are made of quartz glass having so small an amount of gas enclosures that the envelopes or tubes show not more than a few bubbles which are so small as to be barely discernible with the naked eye. The invention is described as applied to a high-pressure lamp with internal diaphragms restricting the discharge; to a combination of a mercury-vapour lamp 5, Fig. 2, with an incandescent filament 9, provided with outer jacket 13, supports 10 and resistor 8; and to super-high-pressure, high-brightness lamps with spherical or capillary envelopes.
Patent GB-1078246-A (GB)
Title: Improvements in or relating to centrifugal compressors
IPC: F04D29/46
Filed: 1966-05-04
Abstract: 1,078,246. Centrifugal compressors. CKD PRAHA OBOROVY PODNIK. May 4, 1966 [May 5. 1965], No.19679/66. Heading F1C. A diffuser ring for a centrifugal compressor has adjustable blades 2 mounted on rotatable pins 3 carried by a rotatable ring 4 supported by balls 6 on a stationary ring 5. The pins 3 are connected to guide pins 11 rotatably supported in ring 5, by rods 9 passing freely through bores in the guide pins. Adjustment of the blades is effected by rotation of the ring 4 about the ring 5 by a servomotor-actuated rod 14. U-shaped leafsprings 8 maintain the balls 6 in spaced relationship. The springs 8, guide pins 11 and rods 9 are arranged in an annular channel 12 formed between two axially-separable portions of the ring 5.
Patent GB-571957-A (GB)
Title: Improvements relating to speed responsive devices having circuit controlling means operated thereby
IPC: G05D13/10
Filed: 1943-11-27
Abstract: 571,957. Centrifugal switches. WRIGHT, G. S. Nov. 27, 1943, No. 19857. [Class 38 (v)] On the attainment of a predetermined speed of governor 5, constructed for example, as described in Specification 571,956, [Group XXVI], a contact-tip 13 adjustably mounted in a contact - member 10 slidable in a guide 9a in a member 8 connected to the governorsleeve 6, is lifted clear of a fixed contact 20 to give an indication. A spring 21 surrounding the contact-meniber 10 between a shoulder thereon and the liner 9a effects secure engagement between the contacts until separation at the predetermined speed. Contacts 13, 19 are shunted by an overriding control switch 24 located, for example, on the dashboard of a motor vehicle the speed of which is to be indicated. In Figs. 3, 4 (not shown), the member 8 carries a fixed contact engageable by a spring-urged, follow-up contact.
Patent GB-218134-A (GB)
Title: Improvements in, or relating to, rock drilling or coal cutting machines and the like
IPC: E21C31/04
Filed: 1923-08-03
Abstract: 218,134. Rayner, G. H. T., and Rayner, P. Aug. 3, 1923. Drills of the rotary reciprocating type, wherein the number of reciprocations made in a revolution can be varied, have an independently rotating casing, surrounding the drill shaft, carrying a roller which engages and is adapted to traverse the groove of a rotating cam mounted on the drill shaft. The driving pinion d drives through a pinion c, a pinion b slidably keyed to the drillshaft a. The cam e is rotated by lugs p engaging recesses q in the shaft a and a roller j on a casing f rides in a groove therein. The casing f has a bearing on a screwed extension g<1> of the shaft a and a boss h on the pinion b, and is driven through a rack k thereon, and pinions m, n, from a pinion o mounted on the spindle of the pinion c. The gearing may be varied so that the casing can be rotated at a quicker or slower speed than the cam either in the same or opposite direction. A plurality of rollers or the like, each working in a separate groove in one cam or in a separate grooved cam, may be provided. By means of the screw g<1> the cam may be held against the end of the shaft, and the contour of the cam may be such as to give any desired number of reciprocations in one revolution of the shaft.
Patent GB-383239-A (GB)
Title: Improvements in and relating to loud-speakers
IPC: H04R7/20
Filed: 1932-07-15
Abstract: 383,239. Loud - speakers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats-Ges ; 2, Friedrich Karl-Ufer, Berlin.) July 15, 1932, No. 20096. Convention date, July 15, 1931. [Class 40 (iv).] The conical diaphragm a of a loud-speaker is supported by a surround b of flexible material of square outline and formed on two opposite sides with bracketshaped portions c which are secured vertically on the loud-speaker housing. The parts a, b, c can either be formed separately or integrally from one piece of material.
Patent GB-386981-A (GB)
Title: Improvements in or relating to the manufacture of an enriched producer gas
IPC: C10J3/26
Filed: 1931-05-22
Abstract: 386,981. Gas-producers. ODELL. W. W., 61, Broadway, New York, U.S.A, May 22, 1931, No. 20207/32. Divided application. [Class 55 (i).] A method for the continuous manufacture of producer gas comprises supplying an oxygencontaining gas such as air, together with a hydrocarbon such as natural gas, methane, propane, or butane, with or without steam, to a bed of incandescent fuel, the resulting gas containing nitrogen, but consisting mainly of hydrogen and carbon monoxide. The producer blast may be upwards or downwards. The hydrocarbon may be in the form of an atomized liquid, or petroleum refinery gas may be used, and the air and steam are preheated to between 1200‹ and 2000‹ F. A gas producer suitable for use in the process comprises a grate 3 and tuyere 13 supplied with air from pipe 5, air for a downdraught being supplied through pipe 5<1>. The hydrocarbons are introduced through an inlet 7, or through an inlet 11, which may be used as a gas outlet during an up draught, the gases being withdrawn through pipe 17 during a down-draught. Steam is admitted from pipe 14 having control valves 15, 16. The amount of air supplied is sufficient to maintain the temperature of the fuel bed at about 900‹ F., and is less than half that required for complete combustion of the hydrocarbon. Specification 247,176, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-841194-A (GB)
Title: Improvements in spectacle frames
IPC: G02C1/04
Filed: 1956-06-29
Abstract: 841,194. Spectacle frames. MOREL-MARECHAL, R. June 29, 1956, No. 20303/56. Class 97(1) A spectacle frame is formed with a resilient strip 3 having one end soldered to or pivoted on the brow bar 1 and the other end engageable in a slidable catch 6 or by a projection from the bar 1 so that a lens 7 may be gripped between the strip 3 and the bar 1. The bar 1 has a rearwardly projecting rib 2 which engages in a groove 9 formed in one face of the lens: Two other forms are described in one of which two shorter resilient strips extend from the bar 1, at least one strip being slidable, and in the other a resilient strip is connected to the bar 1 and is bent over the upper lens edge to clamp the lens against the bar.
Patent GB-449498-A (GB)
Title: Process for the manufacture of azo dyestuffs
IPC: C09B29/06
Filed: 1935-07-17
Abstract: Violet to blue dyes are obtained by coupling a diazotized 2 : 4-dinitro-3 : 6-dihalogenaniline with an amine of the benzene or naphthalene series containing the group NRR<1>, where R is a b .g -dioxypropyl group and R<1> is hydrogen or an alkyl group.  The dyes may be used in aqueous suspension for dyeing cellulose ester or ether artificial silk; the dyeings can be discharged to white.  In the example, 2 : 4-dinitro-3 : 6-dichloraniline is diazotized in glacial acetic acid and coupled with b ,g -dioxypropyl-1-naphthylamine to yield a violet-blue dye; if diazotization is effected in sulphuric acid, a purer product which yields blue shades is obtained.  Other specified coupling components are ethyl-dioxypropyl - m - toludine, 1 - methyl - 4 - methoxy - 3 - (ethyl - dioxypropyl) - aminobenzene, ethyl - dioxypropylaniline, and dioxypropyl - 2 - naphthylamine. Specification 343,502 is referred to.  b ,g -Dioxypropyl-1-naphthylamine is prepared by heating 1-naphthylamine with glycerol monochlorhydrin.  The Specification as open to inspection under Sect. 91 describes the manufacture of dyes by coupling a diazotized 2 : 4-dinitro-6-halogenaniline with the components specified above, and includes examples in which diazotized 2 : 4 - dinitro - 6 - bromaniline is coupled with (1) dioxypropyl - 1 - naphthylamine, (2) dioxy-propyl-2-naphthylamine (prepared similarly to the corresponding 1-naphtylamine derivative) and (3) ethyl-dioxypropyl-m-toluidine.  6-Chloro-2 : 4-dinitraniline is also specified as a diazo component.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1432061-A (GB)
Title: Wiper for vehicle headlamp
IPC: B60S1/60
Filed: 1973-04-30
Abstract: 1432061 Cleaning vehicle head-lamp glasses TOYOTA JIDOSHA KOGYO KK 30 April 1973 [1 May 1972 (2)] 20466/73 Heading A4F A wiper assembly for a vehicle head-lamp comprises a wiper arm 104 carrying a wiper blade or brush 110 adapted to wipe the convex outer surface of a head-lamp lens, or transparent lens cover, means, e.g. a shaft 109, for holding the wiper arm 104 for rotation and adapted to be located by a recess in, or projection from the convex surface of the lens or lens cover, or an aperture in the lens cover, and means for moving the wiper across the convex surface, e.g. a Bowden cable 108 rotated uni-directionally or oscillatably by a motor. The shaft 109 is further supported by a cable guide 106 on a support 103 secured to a head-lamp retaining ring 102. In an alternative embodiment a transparent head-lamp lens cover 206 Fig. 4 (not shown), is cleaned by a wiper blade driven by a worm gearing.
Patent GB-1242764-A (GB)
Title: Electrical connector for high voltage electrical systems
IPC: H01H33/65
Filed: 1969-04-22
Abstract: 1,242,764. Two-part couplings. AMERACE ESNA CORP. 22 April, 1969 [21 May. 1968]. No. 20542/69. Heading H2E. An electrical connector element 34, co-operating with a complementary part 20 connected to a high-voltage cable 10, comprises a cavity 66 divided into a first chamber 74 and a second chamber 76 with a valve 81 connecting them, such that gas generated in chamber 74 by arcing during connection or disconnection may be vented into chamber 76. An electrical contact 39 in the form of a metallic socket 40 having segments 42 biased radially inwardly by spring 44 is housed in the outer body portion 38 of a housing 36. and is integral with a metallic tubular member 68 having an end wall 72. An opening 80 in the end wall is normally closed by the valve 81 comprising a ball 82 biased by a spring 84. A small clearance between the seating 88 and the ball 82 permits a slow leakage of gas from chamber 76 back to chamber 74 when the ball rests on its seating. A second embodiment (Fig. 3, not shown) has tubular members (152, 164) forming a first chamber (174) and a second chamber (176) with a valve (181) and a narrow passage (189) to allow a slow leakage of gas back into the first chamber. Yet another embodiment has a plurality of apertures 280 (Fig. 5) normally closed resiliently by an annular member 282, e.g. of elastomeric material, which opens apertures 280 at the incidence of a sudden high pressure in the first chamber. A porous plug 288 provides the leakage path for gases back into the first chamber, this arrangement being a modification of a loosely fitted screw (284, Fig. 4, not shown).
Patent GB-295684-A (GB)
Title: Improvements in or relating to means for feeding cotton or other fibres to carding machines
IPC: D01G15/40
Filed: 1928-07-16
Abstract: 295,684. Akt.-Ges. J. J. Rieter et Cie. Aug. 17, 1927, [Convention date]. Feeding carding-engines; openers etc.; lapforming apparatus.-The material fed from a lap or from a feeding and weighing apparatus is fed by a roller and plate m or two rollers to a lickerin c and doffer f mounted in a frame adapted to be traversed across the feed apron i of a carding- engine. Dirt knives d are provided to work with the licker-in c and a doffing comb g removes the fleece from the doffer f and deposits it on the apron i. Specifications 122,342, 249,564 and 259,957 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of a rolling device to form a lap from the material on the apron i. This subject-matter does not appear in the Specification as accepted.
Patent GB-1003918-A (GB)
Title: Fluid control valves
IPC: F15B13/04
Filed: 1964-05-19
Abstract: 1,003,918. Valves. COMMERCIAL SHEARING & STAMPING CO. May 19, 1964 [Oct. 11, 1963], No. 20684/64. Heading F2V. When the spool 12 of a multi-way valve is in the neutral position shown, high-pressure fluid enters through parallel ports 13, 18 and flows from the former via outlets 13a, 13b to another valve or to reservoir; fluid in port 18 enters a bifurcated passage 19 that is closed by the spool 12. The spool is moved leftwards to " raise " a  ram so preventing communication between the ports 13, 13a, 13b and opening one arm of passage 19 to a high pressure outlet 15, the fluid exhausting from the ram entering another high-pressure outlet 14 and flowing to an exhaust port 16. Upon moving the spool rightwards to " lower " the ram, high-pressure fluid is directed through outlet 14 whilst the exhausting fluid enters outlet 15 and flows to an exhaust port 17. Further rightwards movement into a regenerative position provides for fluid returning into high-pressure outlet 15 being directed to the other high-pressure outlet 14 via passages 19 to prevent correlation. The spool incorporates a self-centring spring and detents 53.
Patent GB-280503-A (GB)
Title: Improvements in or relating to electric signalling installations
IPC: G08B3/10
Filed: 1927-08-05
Abstract: 280,503. Siemens & Halske Akt.- Ges. Nov. 13, 1926, [Convention date]. Order apparatus. - Relates to a signalling system for summoning persons, transmitting orders, &c. in which impulses transmitted by a sender WS are repeated by relays to one or more visual indicators A. Audible alarms E adjacent the indicators are sounded when the indicators are set and afterwards at intervals determined by a time switch ZS controlled by a group of relays B, H, L. The impulse-sender WS, which is of the kind used in automatic telephone systems, is in series with a slow-release relay F and a relay C, which repeats the impulses over contacts c1, f2 to the magnets operating the indicators A and also to a magnet D of a control switch, which when off-normal closes a circuit over contacts d1, f3 for relays T, VR. The relay T locks up over contact t3. A circuit for the alarms E is also closed over contacts s3, vr1, f3, d1, but is opened after a short time by the slow-acting relay VR, which extends the circuit E, s3, vr1, to contact z52 of the time switch ZS, which completes the alarm circuit periodically. The switch ZS is controlled as follows-The relay VR energizes a relay Q, which closes a circuit for magnet Z through relay L, contacts b, q1, s1. The ma,gr.,et Z is not energized owing to the resistance of relay L, which energizes relay H which in turn closes the circuit of relay B, thereby short-circuiting relay L and causing magnet Z to move the switch ZS one step. The relapse of relay L causes the relays H, B to de-energize, opening the short-circuit around relay L, which causes relays H, B to energize again, this sequence being repeated. The switch ZS is thus stepped round as long as the relays VR, Q remain energized, the circuit of the alarms E being periodically closed when the arms zs1 engage contact zs2. On the depression of the re-setting key RT, the relay S disconnects the alarms E at contact s3, and causes the relays F, C to energize alternately, thereby sending impulses to the indicators A and magnet D, whereby the indicators and control switch are moved on to their normal positions, in which the control switch opens at d1 the locking circuit of the relay T, which restores the other relays to their normal condition.
Patent GB-246742-A (GB)
Title: Improvements in combination tool
IPC: B26B11/00
Filed: 1925-08-19
Abstract: 246,742. Little, T. M. Aug. 19, 1925. Pivoted handles.- A handle is formed of two sections 10, 11 pivoted together at 12 and contains a knife blade 15, screw driver &.c. pivoted at 16, the blade being provided with notches 17, 18 which are engaged by the lip 20 of the handle section 11 to hold the blade either in the open or closed position. The handle sections are channel shaped and are held together by a spring pro. jection 14, the inner section having a slot 19 to allow movement over the pin 16 when the sections are separated.
Patent GB-388298-A (GB)
Title: Improvements in and relating to snap fasteners
IPC: F16L3/04
Filed: 1932-07-23
Abstract: 388,298. Hook, and stud-and-socket fastenings. UNITED-CARR FASTENER CORPORATION, 31, Ames Street, Cambridge, Massachusetts, U.S.A.-(Assignees of Knutson, C. L. ; 2335, West Van Buren Street, Chicago, U.S.A.) July 23, 1932, No. 20844. Convention date, Sept. 14, 1931. [Class 44.] A snap-fastener for holding a conduit 2 on a frame 8 is of inverted J-shape and comprises a sheetmetal blank formed into a loop 1 for engaging one or more conduits 2, and into a straight portion which is slit, as at 3, to provide yieldable portions 4 adapted to have snapping engagement with a socket 7 in the frame 8. The portions 4 are shaped to provide a neck 5 and bulbous head 6, and are bent into overlapping relation. The slit 3 may be extended into the curved portion to provide further resiliency. The edges 9 of the fastener and slit may be flared. Specification 377,889 is referred to.
Patent GB-275982-A (GB)
Title: Improvements in or relating to railway freight wagons
IPC: B65G63/02
Filed: 1927-08-08
Abstract: 275,982. Kellett, W. P. Aug. 12, 1926, [Convention date]. Vehicles with removable bodies.-In a railway freight wagon of the kind having a number of removable. goods containers, the floor of the wagon is provided with longitudinal tracks and buffing devices 6, 7 are mounted on the ends of the containers 4 and on the ends of the wagons 1 respectively so as to absorb shocks in transport. In the construction shown the containers are provided with rollers 5 running on the longitudinal tracks 2, the buffing devices 7 being arranged to swing down into recesses 17, Fig. 2, on the underframe so as to allow the introduction of the containers from the ends of the wagon. Lateral vibration of the containers is prevented by providing the floor of the wagon with longitudinal retaining flanges 10 adapted to engage over horizontal flanges at the lower ends of the plates 8 depending from the containers. The buffers 7 comprise a main body 12 fitted with an adjustable screw 18 slidable longitudinally on a bar 13 carried by a bracket 14 against the influence of a spring 15 housed in a second bracket 16, the body 12 being swung down when required by pivoting on the bar 13, which is disposed below the floor level. When smaller containers 20 are employed, two or more of these may be supported on rollers running on transverse tracks on an intermediate truck or platform carrying the buffing devices as shown at the left of Fig. 1.
Patent GB-674406-A (GB)
Title: Improvements in or relating to atomizers
IPC: A61L9/14
Filed: 1950-08-23
Abstract: 674,406. Powder blowers. SCHNEIDER, J., and SCHNEIDER, H. Aug. 23, 1950. [Aug. 24, 1949]. No. 20908/50. Class 18. [Also in Group XXIX]. A resiliently-compressible receptacle 1, for liquid or powder, contains a plug 4 housing a tube 7, closed at its upper end and provided with a radial opening 12 in line with an outlet 13 in the plug. Compression of the receptacle by the hand forces air up through a longtitudinal passage 10 in the tube 7 so that it mixes with the material from the opening 12 before both are sprayed from the outlet 13. Alternatively the tube 7 is smaller in diameter at its upper portion to provide an annular chamber into which the tube outlet opens. A closure cap 14 is provided.
Patent GB-153704-A (GB)
Title: Improvements in brazing devices
IPC: B23K35/14
Filed: 1919-08-26
Abstract: 153,704. Ligot, A. J. Aug. 26, 1919. Brazing.-A brazing-stick particularly for blowpipe brazing consists of a tube of brass or other metal containing brazing alloy combined with a flux without any binding or thickening agent such as a fat. The brazing-alloy and flux may be in granulated, foliated, or wire form, or in thin or small pieces. After the tube is filled, it is flattened to force the grains into the wall of the tube and prevent escape when the stick is held vertically. The stick may have a wrapping of paper, linen, &c., together with an agglomerant for strengthening purposes.
Patent GB-224955-A (GB)
Title: Improvements in stropping machines for safety razor blades
IPC: B24D15/08
Filed: 1923-08-22
Abstract: 224,955. Taylor, A. Aug. 22, 1923. Stropping-apparatus.- The stropping-material 10 is mounted upon a fixed pivot 4 and is driven, through bevel-gearing 5, 7, by a handle 6. Secured to the pivot is an arm 11 having a projecting part 11<a> upon which is rotatably mounted a lug 14, and in the lug is rotatably mounted a stem 15 carrying a holder 16 for the safety razor blade 19. A spring 18 presses the blade on to the stropping-surface. The blade may be lifted and turned over by means of a handle 17 on the stem 15. The driving wheel may be mounted on an axis parallel to that of the pivot 4, the drive being by means of a belt or a chain. According to the Provisional Specification, the device may have a clamp for fixing to a table &c.
Patent GB-583452-A (GB)
Title: Improvements in stuffing boxes
IPC: F16J15/18
Filed: 1944-10-31
Abstract: 583,452. stuffing-boxes; WRIGHT, H. CLAYTON-. Oct. 31, 1944, No. 21224. [Class 122 (v)] A stuffing-box consists of a rubber or like sleeve 4 compressed by a nut 5 between two relatively oscillating members 1 and 2, the bearing 2 having a recess 3 into which the sleeve is compressed, and a shoulder 8 being formed between the bearing end and a washer 7. Motion is permitted by the flexibility of the sleeve material, the two surfaces of contact of which bind on the members 1, 2.