baber/WOPTO huggingface dataset:
Patent GB-1023937-A (GB)
Title: Improvements in or relating to high pressure lubricating devices
Inventor: EARLY KENNETH CHARLES
IPC: F16N21/04
Filed: 1965-02-17
Abstract: 1,023,937. Lubricator couplings. CASTROL Ltd. Feb. 17, 1965, No. 6914/65. Addition to 963,836. Heading F2G. The lubricating device described in the parent Specification is modified in that the rod 24, instead of being formed with a valve head is adapted to engage a separate ball valve 51 which is urged into engagement with the valve seat 33 by a spring 29, whereby when the part 41 is pressed against a lubricating nipple the rod is moved axially relatively to the part 12 so as to urge the valve away from the seat against the action of the spring. The valve or seat may have a bleed groove to place the passage 44 into communication with the chamber 28 to relieve pressure built up in the chamber. The valve may be an integral part of a piston 53 reciprocable in the bore 18 of the part 11 and have an axial passage 54 for the passage of lubricant.
Patent GB-1493869-A (GB)
Title: Circuit arrangements including amplifiers
IPC: H04M9/08
Filed: 1975-02-19
Abstract: 1493869 Anti sidetone circuits; substation circuits TELEFONAKTIEBOLAGET L M ERICSSON 19 Feb 1975 [5 March 1974] 7081/75 Headings H4R and H4K Transmission amplifier Fl, Fig. 1, and receive amplifier F2 are connected, for signal, in the respective diagonals of a bridge circuit having the line L connected as one of the bridge arms. The receive amplifier has its D.C. supply terminals each connected to receive power from the line via respective arms of the bridge. In a preferred arrangement Fig. 3, the transmit and receive amplifiers each have networks, Zs and Zm respectively, in their inputs, responsive to the line current to vary the loss of the input circuits in dependence on the line-length. A single transistor receive amplifier circuit, and balancing network are described with respect to Fig. 2 (not shown).
Patent GB-547692-A (GB)
Title: Improvements in or relating to double-beat pressure fluid stop valves
IPC: F16K1/44
Filed: 1941-06-07
Abstract: 547,692. Double-beat valves. COCKBURNS, Ltd., RODGER, J., and GRANT, T. June 7, 1941, No. 7230. [Class 135] A double-beat stop valve has the inlet branch between the two valve seats one of which is rigidly mounted while the other is floatingly and resiliently mounted so that the fluid pressure on the inlet side of the valve holds the floating seat in fluid-tight engagement with the respective beat in the shut position of the valve. The valve member, which is guided by a tail 17 and actuated by a spindle 18 passing through a stuffing box 19 in a detachable cover 16, has integrally formed beats 5, 6. The smaller beat 5 arranged within the inlet branch 2 co-operates with a seat 3 rigidly secured in the valve chest by screw-threads or spaced studs and nuts. The beat 6 co-operates with a seat 4 supported so as to be capable of limited axial movement, between stops 14, 15 by a metallic annular spring disc 8. The inner periphery of the disc is clamped against an external flange 12 on the seat by a ring 13 screwed into the seat. The outer periphery is clamped against a shoulder 9 on the valve chest by a ring 10 screwed in a recess in the valve chest or secured by studs and nuts. To permit the removal of the seat 3 after detaching the cover 16 the aperture at the bottom of the casing recess receiving the floating seat is provided with cut-away parts (not shown) of slightly greater width than the axial depth of the seat 3 through which it may pass sideways.
Patent GB-1173203-A (GB)
Title: Improvements in or relating to Variable Frequency Crystal Stabilised Signal Generators
IPC: H03L7/23
Filed: 1967-02-15
Abstract: 1,173,203. Automatic frequency control systems. WANDEL u. GOLTERMANN. 15 Feb., 1967 [16 Feb., 1966], No. 7230/67. Heading H3A. A signal generator forming one stage of a frequency synthesizer comprises a variablefrequency oscillator 18<SP>1</SP> providing an output at terminal 2<SP>11</SP> and a second variable-frequency oscillator 13<SP>1</SP> operating at a 10% lower frequency range and stabilized at a selected harmonic of a reference frequency input f N  by means of a variable ratio frequency divider 14<SP>1</SP> and frequency and phase discriminators 19 and 16<SP>1</SP> which also supply a control signal to oscillator 18<SP>1</SP>; the outputs of the two oscillators are combined in mixer 12<SP>11</SP> and compared with an input frequency at terminal 8<SP>11</SP> (from a preceding stage) divided by 10 in divider 10<SP>11</SP>. The frequency of oscillator 18<SP>1</SP> may be varied cyclically by means of a sawtooth voltage applied to terminal 22; with switch 21 in the position shown the phase discriminator 9<SP>11</SP> then provides an output at terminal 23 each time the frequency passes through a frequency contained in a frequency spectrum supplied toterminal 25. The frequency discriminator 19 and 20 and switch 21 may be omitted, Fig. 3 (not shown). In a modification, Fig. 2 (not shown), the variable ratio divider 14<SP>1</SP> is omitted and a voltage source (6), variable in discrete steps via external control lines (7), is interposed between the phase discriminator output and the oscillator to enable the oscillator to be synchronized to the required harmonic of the input frequency f N .
Patent GB-194728-A (GB)
Title: Change speed arrangement for separately driven spinning, twisting and doubling machines
IPC: D01H1/20
Filed: 1923-03-13
Abstract: 194,728. Assche, A. van. March 13, 1922, [Convention date]. Variable-speed gearing.-A two-speed driving arrangement for spinning and twisting machines comprises a small pulley A fixed on the shaft of a driving motor, which is supported on a pivoted plate and by its weight tensions the driving belt, and a larger pulley B driven by, and slidable on. the boss of the pulley A. The driving-belt is not displaced, and when it is desired to drive the frame at a slow speed, its tension is relaxed by moving the motor about its pivot and the pulley B moved relatively to the pulley A by means of a lever G, so that when the motor is again released the belt engages the pulley A. The motor may be fixed and the belt tensioned by a movable pulley.
Patent GB-478142-A (GB)
Title: Improvements in or relating to electrical musical instruments
IPC: G10H1/46
Filed: 1936-04-09
Abstract: 478,142. Electrical musical instruments ; reproducing music. WERNDL, E. April 9, 1936, No. 7298. [Class 88 (ii)] [Also in Group XXXIX] In an electrical musical instrument with selectively operated tuned note-producing devices, a plurality of volume-regulating devices having different laws of operation are associated each with a separate note or group of notes and are simultaneously operated from a single manual control to influence the various notes or groups of notes to various degrees. In the Figure, electromagnetic phonic wheels 10 ... 13 corresponding to different notes generate currents in primary coils 25, 26 ... which are coupled to secondaries 24, 24a ... as required, by the note-keys 27, 28 ..., giving a smooth start and gradual swell to each note. The secondaries 24, 24a ... are connected to the amplifier and loud-speaker 19 each through its own rheostat 30, 31 ... wound according to predetermined laws to give the desired relative intensities of different notes at different general strengths when operated by the control member 35. A camshaft may alternatively control the different regulators, which may also be in the form of potentiometers, transformers, valves, or, in photo-electric instruments, shutters or light filters. Two or more different loud-speakers may be influenced by regulation of their magnetic fields. More than one note primary as 25, 26 may be coupled to a single secondary. Short-circuiting contacts 29 may be associated with the keys to prevent faint sounding of the notes of keys not depressed. The invention is also applicable to magnetic, electrostatic, &c. instruments. U.S.A. Specifications 2,008,699, 2,008,700, and 2,008,825 are referred to.
Patent GB-1424352-A (GB)
Title: Cassette
IPC: G03B27/58
Filed: 1972-02-17
Abstract: 1424352 Cassettes KODAK Ltd 15 Feb 1973 [17 Feb 1972] 7338/72 Heading B8M [Also in Division G2] A cassette 2 comprises a case provided with a pair of projecting, spaced parallel members 8, 10 which define an exit slot, each member having an aperture whereby feed rollers 16, 18 may contact opposite surfaces of the web. As described, the web is photographic paper fed via the rollers 16, 18 a buffer store 40, and a numbering device 58, to an exposure area 62 and thence via metering device 68, guillotine 86 and a second buffer store 88 to a take up cassette 118. The cassette 2 has a device for braking the paper roll located therein. The leading end of the paper web 4 is initially fed as far as microswitch MS1 which deactivates a solenoid 56 allowing arm 54 to rise and facilitate formation of a web loop until microswitch MS3 is activated. The web then advances as far as microswitch MS2 which, in a similar manner, allows a loop to form in the store 88 until microswitch MS4 activates a motor 114 for feeding the web into the take up cassette 118, Upon operation of a "cut" switch the web continues to be metered until a delay circuit expires at which point the last print to be exposed has entered cassette 118. The guillotine 86 is then operated, the trailing end fed into the cassette 118 and the latter removed. Splices in the web are denoted by warning holes which are sensed and the exposure cycle accordingly inhibited.
Patent GB-1149342-A (GB)
Title: Improvements relating to rotary assemblies for washing-machines
Inventor: SWALLOW LAWRENCE BASIL
IPC: G01N33/487
Filed: 1966-02-21
Abstract: 1,149,342. Shaft seals. HOOVER Ltd. 20 Feb., 1967 [21 Feb., 1966], No. 7523/66. Heading F2B. [Also in Division D1] A horizontal axis washing machine has a seal mounted between the hub 16 of the rotary drum and the bearing housing 23 for the shaft thereof. As shown the seal comprise a ring 40 of plastics or carbon mounted on the hub 16 and a ring 41 of ceramic mounted on a rubber member 54. The two rings 40, 41 are urged together by a coil spring 46. The member 54 is mounted in the bearing housing 23 and a further extension is bent over between the bearing housing 23 and part of the cabinet 31.
Patent GB-927429-A (GB)
Title: Improvements relating to level gauges
Inventor: CHICK WILLIAM ELIJAH
IPC: G01F23/42
Filed: 1959-03-04
Abstract: 927,429. Indicating liquid levels. WHESSOE Ltd. June 7, 1960 [March 4, 1959], No. 7525/69. Class 123 (1). [Also in Group XXX] A device for measuring the level of liquid or granular materials stored, e.g. in a container 2 and of the type comprising a float or other gauging member 3 suspended on a graduated flexible steel tape 4 which, passing over a pulley 5, is wound on a tape drum 6 and is kept taut by a spring strip 7 wound partly on a power drum 8 secured to the tape drum 6 and partly on a storage drum 7 is characterized in that a drive member 15, fast on a crank-handle shaft 16 rotatably supporting the tape drum 6, carries four gravity-operated pawls 18 which co-operate with internal projections 19 on a hollow cylinder member 14 secured to the drum 6 to rotate the latter only when the handle 17 is turned in a direction to wind up the tape 4. Graduations on the tape co-operate with a fixed index 10 alternatively, or in addition, perforations in the tape engage sprocket teeth 11 on the pulley 5 connected, through gearing 12, to indicator mechanism 13. A pawl 20 normally bears by gravity on the spring strip 7 on the power drum 8 so that, if the tape 4 breaks, it engages in a recess 19 in the drum 8, after the strip 7 has been fully wound upon the storage drum 9, to arrest rotation. The components of the device are mounted in a casing 1 secured to the top of the tank 2. Specification 827,430 is referred to.
Patent GB-1543524-A (GB)
Title: Apparatus for the hydraulic mounting of tubes in tube endplates
IPC: B21D53/06
Filed: 1977-02-23
Abstract: The pressure of the hydraulic fluid which is used for the expansion and pressing of the tube (8) into contact with the wall of the hole is increased to a level at which the expansion of the tube and of the wall of the hole which occurs is such that, after relief of the pressure, the tube is permanently gripped by the wall of the hole by virtue of the positive difference in the unhindered elastic recovery of the tube and of the wall of the hole. The method can be used, in particular, in the production of heat exchangers. Since it is possible to set the required expansion pressure precisely, it is also possible to achieve the desired prestressing of the tube (8) in the hole precisely. <IMAGE>
Patent GB-205021-A (GB)
Title: Improvements relating to electric light fittings or lanterns
IPC: F21V23/04
Filed: 1923-03-16
Abstract: 205,021. Wight, H., Park, W., and Sunderland Forge & Engineering Co., Ltd. March 16, 1923. Lantern door fittings.-Fixed switch contacts 6<a> arranged within an electric lamp casing and inserted in the lamp circuit are adapted to co-operate with the movable member 11 of a tumbler switch carried by the removable cover of the casing, the arrangement being such that, when the cover is removed, the movable parts of the switch are removed therewith without interfering with the wiring connections.
Patent GB-330541-A (GB)
Title: Improvements in or relating to gyroscopic directional instruments
IPC: G01C19/34
Filed: 1929-03-08
Abstract: 330,541. Brown, S. G. March 8, 1929. Gyroscopic compasses.- In a directional instrument of the kind described in Specification 270,006 in which the movements of a North-seeking and of a static gyro-compass are so combined that the errors of each are neutralized, there is applied to the element of the mechanism under the control of the North-seeking compass an additional correcting movement to compensate for the North-steaming error under given conditions. The screwed spindles 1, 2 operated by step-by-step motors 3, 4 controlled respectively by the North-seeking and static gyros, both engage a worm-wheel 5 on a frame 6 which may carry a recording pen 7. To produce the desired connection the motor 3 is geared to a disc 11 carrying a pin 12 engaging in a slot 13 in a sleeve 14 loosely mounted on the spindle 1 and prevented from axial movement thereon by suitable collars, so that rotation of the disc 11 causes axial movement of the spindle with consequent rotation of the worm-wheel 5. The distance of the pin 12 from the centre of the disc 11 can be adjusted by a rack and pinion 17, 18 according to existing conditions of speed and latitude, the pinion 18 being set either manually or by a step-by-step motor.
Patent GB-217967-A (GB)
Title: An electrically-actuated fire-detector and alarm
IPC: G08B17/06
Filed: 1923-03-19
Abstract: 217,967. Lorrain, H. M. March 19, 1923. Alarms operated by fusible and inflammable devices.- In an electric fire detector a circuitclosing rod o pressed forward by a spring p is normally held in operative position by a lead or alloy wire which is supported below the - ceiling and is attached to a ring o<1> on the end of the, rod. Contacts q insulated by washers s from the alarm box l and by partition t from one another are adapted to be engaged by the forked end o<2> of the rod and a bell or buzzer is then sounded. The rod is guided in a tube n within cases m, l. A tumbler switch is provided in the bell &c. circuit for testing purposes. The electric leads to the switch are enclosed in a tube. Reference has been directed by the Comptroller to Specifications 16925/95, 19256/03, 11410/08, and 30305/09.
Patent GB-832306-A (GB)
Title: Improvements in skeleton wall constructions
Inventor: FENTIMAN ARTHUR EDWARD
IPC: E04B1/19
Filed: 1958-03-12
Abstract: 832,306. Walls. FENTIMAN & SONS Ltd., F. March 12, 1958, No. 7896/58. Class 20(4) In a reinforced skeleton wall construction which includes a number of coplanar arms secured together by connectors E, the wall has a reinforcement F projecting transversely of the plane of the arms and including a number of rows of parallel, elongated, connectors E<SP>1</SP> each projecting a like distance beyond one face of the wall, the connectors of each row being vertically spaced from each other, and the reinforcement having bracing members associated with each row of connectors and extending between and interconnecting the projecting ends of adjacent connectors of the respective rows. As shown, the wall comprises spaced members B, C, each formed of a number of triangular space frames D arranged around parallel connectors E equidistantly spaced apart. The outer ends of the connectors E<SP>1</SP> are connected by members 11 of triangular or other crosssection and having flat ends 12 to engage in keyways- 10 of the connectors; similar diagonal members 13 extend between the inner and outer ends of adjacent connectors. The reinforcement may be disposed angularly across the corners of a wall, vertically, horizontally, or in V-shaped or zig-zag form. Specification 832,307 is referred to.
Patent GB-1363570-A (GB)
Title: Piezoelectric igniter
IPC: F23Q3/00
Filed: 1972-02-21
Abstract: 1363570 Piezo-electric generators MURATA MFG CO Ltd 21 Feb 1972 [2 April 1971 22 Aug 1971] 7913/72 Heading H2A A piezo-electric igniter comprises an enclosure 20 for the piezo-electric element 10, an operating member 30 slidable within the enclosure and between them a striker 40 having circumferential grooves 41a, 41b in which are located circlips 50, 55 with out-turned ends 53a, 53b and 58a, 58b respectively. These ends locate in triangular openings 34, 35 in opposite sides of the operating member 30 and in notches 25a, 26a in longitudinal grooves 25, 26 in the sides of the enclosure 20 to retain member 30 in the enclosure and hold the striker 40 in its inoperative position against a spring 60. Axial pressure on member 30 loads the spring 60 and causes the sloping edges 34a, 35a of openings 34, 35 to force together the ends of the circlips until the ends 53e, 58a disengage the notches 25a, 26a whereupon the striker is released into engagement with the element 10. On release of member 30, a spring 70 returns it and the striker to their initial positions. Various alternative shapes and arrangements of grooves, notches and springs are described, Figs. 4-7 (not shown), and in a further embodiment, Fig. 8 (not shown), the longitudinal grooves (25<1>, 26<1>) in the enclosure are tapered so that the circlips expand during the return movement of the striker and operating member and assist the spring 70.
Patent GB-292676-A (GB)
Title: Improvements relating to shock-absorbing mats for use with telephones, loud speakers and the like
IPC: H04M1/11
Filed: 1927-03-22
Abstract: 292,676. Redfern's Rubber Works, Ltd., Blackmore, R. H., and Lever, G. March 22, 1927. Supporting. - A shock-absorbing mat for telephones, loudspeakers, and like instruments comprises a mat proper a of indiarubber or the like resilient moulded material having projections b on its underside and inserted, to prevent lateral movement of the mat, in a moulded base member c. The mat may be of any shape desired and the projections b may be of conical, pyramidal, or other shape in section.
Patent GB-271021-A (GB)
Title: Improvements in electromagnetic acoustic apparatus
IPC: H04R1/22
Filed: 1926-02-09
Abstract: 271,021. McLachlan, N. W. Feb. 9, 1926. Drawings to Specification. Loud-speakers; magnetic instruments; diaphragms. - Electromagnetic acoustic apparatus comprises a conductor mounted for vibration in a magnetic air gap and in positive operative connection with a plurality of sound-reproducing diaphragms. The detailed description is the same as that of Specification 270,421.
Patent GB-610565-A (GB)
Title: Improvements in vices and the like
IPC: B25B1/22
Filed: 1946-03-14
Abstract: 610,565. Vices. WELLER, J. March 14, 1946, Nos. 8037/46 and 2053/47. [Class 61 (ii)] A vice comprises two similar jaws A and B, each mounted on a tubular slide C. A grubscrew J passing through the jaw A secures it to the slide C and a screw E passing through a similar hole in the jaw B prevents it from rotation and guides it, by means of a slot D, on the slide C. A fixed screw G extends along the guide C and a rotatable nut H bearing on a conical or spherical bearing K actuates the vice. Gripping plates L are provided for the jaws; and held in place by pegs M. The plates are revolvable about the slide C out of engagement with the jaws when the pegs M are removed. In a modification the jaw B is provided with a tubular extension in the end of which the screw G is fixed; this extension may be integral with the jaw B. A mounting for the vice, which grips the extension of the jaw B, is described which allows horizontal and vertical rotation of the vice. A stand which is secured to the jaw B and which slidingly supports the jaw A is also described, having a narrow waist to allow the vice to grip long pieces of work.
Patent GB-136062-A (GB)
Title: Improvements in and relating to Machines for use in the Manufacture of Electric Incandescent Lamps and the like.
IPC: H01J9/30
Filed: 1919-03-31
Abstract: 136,062. British Thomson - Houston Co., (General Electric Co.). March 31, 1919. Coating and damping machines. - Electric incandescent lamp-caps are coated with an inner layer of cement, for attaching them to bulbs by the machine shown. The caps are placed in holders 17 on the circumference of an intermittingly rotating table 16. As each cap arrives below a feed-tube 21, the rotation of the table ceases, the feed-tube is depressed into the cap, and the holder 17 is given one complete rotation about its axis, cement being thus applied all round the inside of the cap through an aperture 22 in the feedtube 21. The tube 21 then rises and the holder 17 passes on. The aperture 22 is closed in the raised position by a spring-pressed sleeve 25. The caps are pressed down in the holders before reaching the feeding position by an arm 32 and are ejected afterwards by a fixed cam actuating a plunger 20. The cement is fed into the tube 21 from a reservoir 27 by a continuously rotating screw.
Patent GB-270464-A (GB)
Title: Improvements in friction clutches
IPC: F16D13/72
Filed: 1926-03-25
Abstract: 270,464. Benn, H. H. March 25,1926. Clutches, friction.- Mechanically - actuated disc clutches are cooled by forming in a disc or disc b air channels c of centrifugal-fan shape between the friction faces. The co-operating solid discs a, provided with air passages h, are splined to a hub d, and the annular discs b slide by lugs b<1> on bolts j extending from the part k. The discs a mav alternatively or additionally be provided with centrifugal air channels.