baber/WOPTO huggingface dataset:
Patent GB-661797-A (GB)
Title: Improvements in and relating to television cameras
IPC: H04N5/232
Filed: 1949-05-09
Abstract: 661,797. Television transmitters. BRITISH THOMSON-HOUSTON CO., Ltd. May 9, 1949 [May 11, 1948], No. 12331/49. Class 40 (iii). A view-finder for use with an image-orthicon television transmitting tube comprises a partially-reflecting, partially light-transmitting device 7 which splits the beam focused by the objective lens 6, so that the transmitted light forms an image on the photo-cathode 12 while the reflected light produces an image on the ground-glass screen 20. The device 7 may be a half-silvered mirror having achromatic properties or it may be a dechroic reflector comprising a thin transparent film deposited on a transparent surface. In an arrangement employing a dechroic reflector the transmitted light may be arranged to compensate for divergences in the colour characteristic of the cathode 12 from that of the eye. Alternatively, the reflector may reflect only light of the colours to which the photo-cathode is insensitive, thereby effecting a worsening of the colour characteristic of the tube, but providing a more sensitive arrangement. As the same objective lens is used for both optical systems, simultaneous focusing of the two images by a single control may be effected.
Patent GB-141929-A (GB)
Title: An improved piston ring or the like and methods of manufacturing the same
IPC: F16J9/04
Filed: 1919-05-16
Abstract: 141,929. Clews, B., and Petersen, H. M. May 16, 1919. Packing, metallic.-A packing-ring for a piston or stuffing-box consists of a one-piece double-coil ring of uniform section, the two coils being united by a narrow stepped part e, Fig. 8, and being arranged to press together tightly. The ring may be made by slitting and gapping a solid ring, or by bending a straight strip of suitable shape. It is preferred, however, to cut the rings from a tube as shown in Fig. 1. A helical groove b is first turned in the tube, wider slots d are then milled out as shown, and the inner skin is bored out, whereby rings are formed as shown in Fig. 2. The free ends of the ring and the part e are then shaped, and one end of the ring twisted across the other, giving the finished form. Figs. 5 and 12 show modified methods of arranging the milled-out slots, two helical grooves being turned in the latter method.
Patent GB-1458106-A (GB)
Title: Arrangement for determining the moisture content of tobacco or similar material
IPC: G01N27/22
Filed: 1974-03-20
Abstract: 1458106 Electrophysical measurementmoisture HAUNI-WERKE KORBER & CO KG 20 March 1974 [27 March 1973] 12393/74 Addition to 1406838 Heading G1N In an arrangement for measuring moisture in a tobacco stream as in Specification 1406838 wherein the tobacco is compressed during measurement, the pressure plate is replaced by a hollow roller, housing the capacitor electrodes, (to avoid the problem of moist tobacco sticking to the plate). The roller is of polyproplyene and may be rotated by the tobacco stream or separately driven.
Patent GB-1099973-A (GB)
Title: Car cleaning installation
IPC: B60S3/04
Filed: 1966-03-22
Abstract: 1,099,973. Cleaning vehicles. BOEWE, BOEHLER & WEBER K.G. March 22, 1966 [March 26, 1965], No. 12432/66. Heading B7J. In a vehicle cleaning installation a washing device 1<SP>1</SP> is mounted so as to be vertically and horizontally movable with respect to a vehicle 8, there existing a light barrier 7 caused by a source of light 5 on one side of the device which extends to a photo-electric cell 6 on the opposite side, which barrier when partly, e.g. one-third, obscured by the car causes a vertically downward movement of the cleaning device to halt, and when substantially, e.g. two-thirds obscured, causes the device to move vertically upwards, the device therefore following the contours of the vehicle. In a further arrangement, Figs. 2 and 4 (not shown), there are two photoelectric cells (6a), (6b) and the cleaning device has either a nozzle arrangement pivotable between directions (18) and (19) or two sets of nozzles extending in directions (18) and (19), such that if photo-electric cell (6a) alone is obscured the nozzles in direction (18) are active and vice versa. In Fig. 8 the nozzles are replaced by a rotary brush 21 and there are provided two light barriers 6a<SP>1</SP>, 6a<SP>11</SP> and 6b<SP>1</SP>, 6b<SP>11</SP> having a common lower photo-electric cell which allows the cleaning installation to follow the vehicle outline. The photocells in this embodiment develop A.C. due to the light chopping action of the brush. In the arrangement of Figs. 6 and 7 (not shown), two photo-electric cells (6a<SP>1</SP>) and (6a<SP>11</SP>) are arranged one above the other and downward movement of the cleaning device is halted if cell (6a<SP>11</SP>) is obscured and upward movements started if cell (6a<SP>1</SP>) is obscured. The cleaning device is supported by cables 28, 29 wound on drums 26, 27 arranged on shaft 30 driven by motor 31. In the control circuit, Fig. 10, the photo-electric cell 6 is connected in series with a battery 34. If the light beam is not, or substantially not, obscured then a low-voltage supplied from an amplifier 33 through position 1 of a switch 37 causes the release of a brake on motor 31 allowing the cleaning device to fall vertically. When the light beam is partially obscured increasing voltage from the amplifier, position II of switch 37, causes the brake of motor 31 to operate and with the light beam extensively obscured, position III of switch 37, the voltage supplied to the motor is such that the cleaning device is pulled vertically upwards. Limit switches 39, 41 are supplied at the ends of washing devices motion. Air may be supplied to the cleaning device through telescopic arrangements which support the device.
Patent GB-474407-A (GB)
Title: Improvements in or relating to telegraph keyboard transmitters
IPC: H04L17/06
Filed: 1936-05-01
Abstract: 474,407. Type - printing telegraphy. CREED & CO., Ltd., and SALMON, R. D. May 1, 1936, No. 12462. [Class 40 (iii)] When two keybars 17, 17, Fig. 3, are depressed simultaneously, in keyboard trans. mitters such as that described in Specification 388,785, the mechanism is jammed through a combination bar 16 being moved to a central position, since the corresponding lever 26 also will be centred and will hold both levers 24 at their lower ends so that they jam the cam disc 25. The invention enables the mechanism to be released and reset by means of a releasing-key 2, Fig. 2, which is shown in the actuated condition. A projection 31 on the end of the keybar engages the start-stop escapement disc 29 and turns back the cam shaft 25a so as to relieve the jam shown in Fig. 3 ; at the same time a cam surface 12 at the end of the release keybar 2 disengages the locking-lever 7 from the levers 26, Fig. 3, which are normally locked by it during transmission ; and a pawl 5 engages over a stop 13 so as to hold the keybar 2 depressed. When an ordinary key 17 is now depressed, a signal combination is set up for transmission in the ordinary way, and at the same time the universal bar 27, which normally controls the start-stop disc 29, is shifted and acts through lever 28 and pin 20 upon the pawl 5, so as to release the keybar 2. The cam shaft 25a is thus released and completes one revolution.
Patent GB-125551-A (GB)
Title: Improvements in and relating to Apparatus for Making Firelighters.
Inventor: WILSON WALTER AUDAER
IPC: C10L11/00
Filed: 1918-08-01
Abstract: 125,551. Wilson, W. A. Aug. 1, 1918. Composition fuel. - A machine for use in making fire-lighters from bracken, reeds, heather, hay, straw, or the like is shown in sectional elevation in Fig. 1. A feed trough T delivers the bracken &c. into a rotating cone C, mounted in bearings C<2>, C<3> and provided with a pulley C<4>, or the bracken &c. may be fed by a rotating worm, or by a set of grooved rollers. Bobbins B are mounted on the cone and supply binding threads which pass along passages P; friction devices exerting a pressure on the ends of the bobbins keep the threads in tension. The bracken &c. is compressed during its passage through the cone and passes onwards as a ropelike bundle which is bound by the threads and is then impregnated by melted naphthalene, resin,. or other inflammable material contained in a tank G, through which the bracken &c. travels. The tank is heated by steam or gas, and rollers G<3> serve to press the bracken &c. into the molten bath. After leaving the bath, the bracken &c. bundle is dried and cut into firelighter lengths. A recessed and spiked rotating pulley D<2> draws the bracken &c. bundle onwards, the bundle being pressed against the pulley by a weighted roller E. The tank may be modified as shown in Fig. 4, the bracken &c. bundle being passed around a drum D<4> and upwards over a spiked draw-roll D<x>, surplus impregnating material draining back into the tank. The Provisional Specification states also that moss or the like may be passed through a mixing machine and treated with melted naphthalene or the like, the mass being cut up into fire-lighters.
Patent GB-591325-A (GB)
Title: Improvements in automatic retaining or locking means for revoluble objects
IPC: B41J19/64
Filed: 1945-05-18
Abstract: 591,325. Locking rods. AIRCRAFTINGS, Ltd., and COHEN, I. May 18, 1945. No. 12543. [Class 80 (iii)] Automatic locking means for a shaft c having a worm b for driving a worm wheel a, consists of a clutch cone e slidable on a square sectioned part of the shaft c and which fits into a coned recess in a fixed casing f. The cone e is pressed into the recess by a spring g to lock the shaft c, and its small end has notches e<1>, with V-shaped bottoms engaged by tongues j<1> formed on a sleeve j<10> coupled to a sleeve j on to which the operating handle h is keyed. The tongues j<1> are narrower than the notches e<1>, so that when the hand wheel h is turned the V-shaped parts give a slight axial movement to the cone e against the action of a spring g, thereby disengaging it from its seating to allow rotation of the shaft c upon further rotation of the hand wheel h. In modifications the driven object may include the clutch cone or may be the shaft upon which the clutch cone is slidably mounted.
Patent GB-933468-A (GB)
Title: Improvements in or relating to air driven conveyors
Inventor: LYON EDGAR WALTER
IPC: B65G23/00
Filed: 1961-04-07
Abstract: 933,468. Conveyers. PRESSED STEEL CO. Ltd. April 4, 1962 [April 7, 1961], No. 12668/61. Class 78 (1). An endless belt conveyer is driven by compressed air which actuates a double-acting air cylinder 11 mounted on one of the side plates 12 of the conveyer to cause a piston 13 to reciprocate carrying an arm 14 attached to it. Parallel endless chains 15, 16 are carried by freewheel devices 17, 18; 21, 22 mounted on idler and driven shafts 19, 20. All the freewheel devices freewheel in the direction of the dotted arrows. The lower run of chain 15 is attached to the underside of the arm 14 and the upper run of chain 16 is attached to the upper side of the arm 14. When the arm 14 moves to the right, chain 15 drives roller 20, chain 16 free-wheeling. When the arm 14 moves to the left, chain 16 drives roller 20, chain 15 free-wheeling. The effect is to impart unidirectional motion to a conveyer belt (not shown). Compressed air from a feed 30 is directed to the cylinder 11 by a valve 25, poppet valves 28, 29 being arranged to cause reversal of the piston 13 at the end of each stroke.
Patent GB-182620-A (GB)
Title: Improvements in or relating to fountain or reservoir pens
IPC: B43K5/06
Filed: 1921-05-04
Abstract: 182,620. Wade, E. E. S. May 4, 1921. Reservoir pens; pencil and like holders.- Relates to means for securing a head-piece, which may be revoluble, to the vulcanite or like body or barrel of a reservoir pen, pencil, or the like. The head-piece g is formed with a reduced portion g<1> having a projection or flange g<2>, which is larger than the normal diameter of the barrel a, and is adapted to occupy a groove a<1> in the barrel, the engagement being effected by heating the barrel so as to expand it and permit the insertion of the flange. The barrel is preferably formed with a chamfered mouth a<2> to facilitate the insertion. As applied to a self-filling pen of the plunger type, the head-piece operates a plunger d by means of a screw f which engages a threaded tubular member e attached to the plunger. The flange g<2> and groove a<1> are so spaced as to cause the shoulder g<3> of the head-piece to abut against the end of the barrel.
Patent GB-714646-A (GB)
Title: Thermally-responsive automatic electric cut-out or circuit breaker
IPC: H01H71/74
Filed: 1952-05-20
Abstract: 714,646. Automatic circuit-breakers. TELEMECANIQUE ELECTRIQUE. May 20, 1952 [Aug. 31, 1951], No. 12783/52. Class 38(5) The total range of adjustment of the parts of an adjusting device for a thermal cut-out is divided by stops into a number of partial displacements each corresponding to an adjustment range, the operation necessary to change from one range to another being different from that by which adjustment is effected within each range. The cut-out comprises contacts 6a, 7a urged apart by'a spring 9 but normally held together by a stop 10 engaging behind contact lever 7 which is mounted on a pin 8 carried by a part 15 of a plate 16. Stop 10 is attached to a lever 11 pivoted at 12 and having a part 13 co-operating with a current-heated bimetal strip 14, upward movement of which causes the contacts to be released. The plate 16 is vertically slidable in the casing 5 and has lugs 33, 34, respectively carrying an adjustable screw 36 and a spring 35 engaging opposite sides of a snail cam 19 formed on a cylinder 22 rotatable in the casing. The cylinder is bored out to receive a member 25 which has three equally spaced notches 26 selectively engageable with a lug 24 on cylinder 22. Normally member 25 and cylinder 22 are rotatable together through an angle, e.g. 120 degrees, determined by a lug 46 on member 25 co-operating with an arcuate recess in casing 5, this angle corresponding to one range of adjustment. The range is changed by pulling out member 25, which is then rotated to engage a different notch 26 with lug 24, the cylinder 22 and member 25 then being rotated together until lug 46 re-engages its recess. Rotation of cam 19 raises or lowers plate 16 and the contact lever 7 and varies the point of engagement between stop 10 and the lever 7. The stop is re-engaged behind the lever 7 by depressing a button 28, a stop 29 on a rod 27 attached thereto moving lever 7 to the left, Fig. 1. The contacts 6a, 7a reclose when the inner end of the rod 27 moves to the right, Fig. 1, on release of the button. The circuit may be broken by depression of the button by moving contact 6a away from 7a.
Patent GB-292993-A (GB)
Title: Improvements in and relating to electric signal and control systems
IPC: B61L15/00
Filed: 1928-05-01
Abstract: 292,993. British Thomson-Houston Co., Ltd., (Assignees of Konn, F.). June 29, 1927, [Convention date]. Selective distant control systems and apparatus.-In a high frequency carrier current signal and control system particularly adapted for the control of and signalling between separated train units the control is effected by independent modulation frequencies and the speech modulating equipment is rendered inoperative when control is being effected. The Figure shows a control station A at which signalling currents from a microphone 20 are superimposed together with currents of a " base " frequency determined by the circuit 10. 11, 12 of a generator 9 on a generator 1. Control is effected by movement of the control 23 which de-energizes relay 15 to render the speech modulating equipment inoperative and varies the tuning of the circuit 10, 11, 12 to modulate the generator 1 with the control frequency. The return of relay 15 is delayed by a time delay device 48 until the control is effected. At the controlled station B the cessation of the " base " frequency de-energizes the tuned relay 32 and the control frequency operates one of the tuned relays 33 - - 38 which in closing its contacts may operate a signal or, as shown, upset the balance of a Wheatstone bridge formed by resistances 39, 40 to operate a device 42 to restore the balance bv rotation of the controlled arm 41. Visible or audible signalling devices 8 may be provided operated by amplified de-modulated signal current in addition to the speech modulating and de-modulating equipment.
Patent GB-1093233-A (GB)
Title: Hydraulic rotary servo mechanism
IPC: F15B9/10
Filed: 1965-03-26
Abstract: 1,093,233. Fluid-pressure servomotor systems. KAWASAKI JYUKOGYO KABUSHIKI KAISHA. March 26, 1965 [April 6, 1964], No.12921/65. Heading G3P. A rotary hydraulic servomotor has an input shaft 25 and an output shaft 24 and is so arranged that rotation of the input shaft causes an equal rotation of the output shaft. The output shaft is integral with a rotary vane-type servomotor 23 and has an upper portion 18 received within a sleeve 12 formed integral with a rotary vane 8 and a shaft 4. The vane 8 defines two chambers (3, 3', Fig. 4, not shown) which communicate with an inlet 1 via passages 50 and 2, (2') and with passages 5, (5') leading axially through shaft 4 to a chamber 9 connected to an outlet 11. A semi-circular disc valve 7 attached to input shaft 25 controls the escape of fluid from passages 5, (5'). The sleeve 12 has a lower groove 13 communicating with inlet 1 and with passages 16, 17, and an upper groove 13' communicating with outlet 11 and with passages 14, 15. The vane 23 defines chambers (22, 22 Fig. 2, not shown) and these communicate respectively with passages 19, 19' leading axially through shaft 24, passage 19 having branch passages 20, 20' and passage 19 having branch passages 21, 21'. In operation, movement of the input shaft disturbs the pressure balance on vane 8 thereby causing the latter to rotate by the same amount in the same direction to restore the balance. Rotation of vane 8 causes rotation of sleeve 12 to connect one of chambers (22, 22') to the inlet and the other to exhaust, thereby causing the vane 23 to rotate by the same amount and in the same direction as the sleeve. Passages 10 leading from chambers (3, 3') to the underside of sleeve 12 serve to lubricate movement of the latter. The output shaft may control the displacement of a pump or a butterfly valve.
Patent GB-948633-A (GB)
Title: Anti-oxidant compositions
IPC: C07F7/08
Filed: 1960-04-13
Abstract: An antioxidant composition for addition to a high-temperature lubricant comprises a diaromatic secondary amine, and a compound containing the phenosilazine structure <FORM:0948633/C3/1> in which, preferably, the free nitrogen valency is attached to hydrogen or an alkyl group containing up to 7 carbon atoms and the free silicon valencies are attached to aryl groups. The preferred silicon compound is <FORM:0948633/C3/2> Suitable lubricants include esters of neopentyl glycol, 2 - butyl - 2 - ethyl - 1,3 - propanediol, 2,2,4 - trimethyl-1,3 - pentanediol, trimethylol-propane, trimethylolethane, and pentaerythritol with alkanoic acids.  The amine component of the composition may be phenyl-a -naphthylamine, phenyl - b  - naphthylamine, or p,p1-dioctyldiphenylamine.
Patent GB-683591-A (GB)
Title: Improvements in or relating to dustbins
IPC: B65F1/16
Filed: 1951-06-04
Abstract: 683,591. Dust bins. SOC SOVEL. June 4, 1951 [June 8, 1950], No. 13205/51. Class 26 In a dustbin 1 for hermetic discharge into a collecting vehicle, a ring 3 is fixed round the top of the bin, and the hinge 7 of the lid is mounted on a supporting plate 4 level with the ring, and has a concave portion 8 adapted to fit round the plate when the lid is completely open. The ring and plate together make a dust-tight joint with the vehicle 11.
Patent GB-132131-A (GB)
IPC: H01J19/02
Abstract: 132,131. McAlpine, G. Dec. 4, 1918. Non-contact-making relays.-A relay arrangement comprises a thermionic valve having a heated electrode, two cold electrodes, and a movable screen adapted to be moved over either of the cold electrodes. The screen may be operated by magnetic or gravitational force; and the arrangement adapted to steer an aeroplane automatically. The valve 3 is provided with a filament 5 heated by alternating current, two cold electrodes 6 and 7, and a pivoted screen 16 in the form of a magnetic needle. The cold electrodes 6, 7 are connected to magnets 12, 13 respectively, and the screen 16 normally lies under the electrode 5. The electrodes 6 and 7 are inclined at about 10 degrees to the plane containing the electrode 5 and the screen 16 when in its normal position. The potential of the screen 16 is varied by varying its connexion to a battery 11. The screen 16 may be moved by a magnet outside the valve, or it may be in the form of a pendulum.
Patent GB-434468-A (GB)
Title: Improvements in and relating to methods of manufacturing hard alloys
IPC: C22C1/05
Filed: 1935-05-03
Abstract: In a process for making hard alloys of the type comprising two p  or more hard constituents such as refractory metal carbides and one or more auxiliary metals of lower melting point, each of the hard constituents is separately associated with one or more of the auxiliary metals for example by grinding, and the fractions so formed are afterwards mixed and sintered under pressure at high temperature. For example, 75-97 parts of tungsten carbide may be ground with 3-25 parts of cobalt, and 75-92 parts of titanium carbide with 8-25 parts of nickel; a final sintered product may then be obtained from 90-95 per cent of the tungsten carbide mixture and 5-10 per cent of the titanium carbide mixture.
Patent GB-628415-A (GB)
Title: Improvements in or relating to cleansing apparatus
IPC: A47L15/13
Filed: 1947-05-16
Abstract: 628,415. Washing-machines. GENERAL ELECTRIC CO., Ltd., CROPPER, W. C., and WELLS, G. M. May 16, 1947, No. 13266. [Class 138 (ii)] [Also in Groups II and XXIII] A clothes-washing apparatus comprises a rotatable platform for supporting articles within a container of cleansing fluid, in combination with a vibratory means to agitate the fluid by variation of pressure at an ultrasonic frequency. A casing 1 having a hinged lid 2 contains a tub 3 inside which is a platform 4 supported and rotated by a motor-driven shaft 5. The platform supports a wire basket 13 into which clothes for cleaning are placed, the basket being positioned by studs 14 on the platform. A magneto-striction vibrator 7 made with a plurality of rectangular laminations is mounted on the casing tub by means of two members 8 which engage the smallest faces and is so positioned as to be partially submerged in the cleansing fluid. The vibrator coils are energized by a thermionic valve generator at a frequency such as 50 kilocycles per second and so causes supersonic pressure variations in the liquid. The vibrator may be mounted in contact with the tub walls and piezo-electric or electro-magnetic vibrators may be used if desired. The liquid is heated by a thermostatically-controlled heater 9, 10, and the tub has a drain pipe 11.
Patent GB-223266-A (GB)
Title: Improvements in pneumatic tyres
IPC: B60C5/04
Filed: 1923-05-18
Abstract: 223,266. St. Helens Cable & Rubber Co., Ltd., and Brooking, J. H. C. May 18, 1923. Drawings to Specification. Air tubes.-A pneumatic inner tube is made of tough rubber, the toughness being substantially equal to that of a mix made of 30 pounds weight of raw rubber, 8 ounces of sulphur, 8 ounces of accelerator, 10 pounds of carbon gas black, 2 pounds of M.R.X. and 7 pounds of asbestine. The tube is capable of limited stretch under pressure and can be used with an outer cover of less than normal strength. The tube may be circular in cross-section or may be oval or otherwise moulded. A preferred form is one in which the circular air space is eccentric to the circular outer periphery.