baber/WOPTO huggingface dataset:
Patent GB-694286-A (GB)
Title: Improved apparatus for the manufacture of cathode ray tubes
Inventor: BAYFORD LESLIE JOHN CHARLES
IPC: H01J29/28
Filed: 1948-12-16
Abstract: 694,286. Luminescent screens. ELECTRIC & MUSICAL INDUSTRIES Ltd. Dec. 16, 1949 [Dec. 16, 1948], No. 29703/51. Divided out of 694,232. Class 39(i) [Also in Group XI] The introduction of phosphor suspension and the backing layer for the subsequent deposition of a thin metallic layer in the manufacture of cathoderay tubes is carried out in two stages on a conveyer mechanism comprising pulleys 1, 2 around which runs an endless belt 6 bearing trolleys 7 with inflatable tube holders 8 of the kind described in Specification 694,233. Adjacent pulley 2 is the phosphor dispensing apparatus 10 and at the other end of the belt is a film-forming apparatus 11 as disclosed in Specification 694,232. The tube is loaded at 12, and when it reaches the apparatus 10, the latter is operated manually or automatically to introduce a predetermined quantity of phosphor suspension. During the passage to apparatus 11, the phosphor settles to form the screen, and control mechanism then operates to couple the apparatus 11 with the trolley and, during the subsequent movement, to introduce a quantity of film-forming solution before the operator or an automatic ramp disconnects the dispensing apparatus 11. A switch may operate to bring the belt to rest in the event of the apparatus 11 failing to disconnect from the trolley 7. As the tube continues, the solution evaporates to form a film, and in its passage round pulley 1 is tilted so that the suspension liquid runs from beneath the organic film which settles on to the phosphor screen. A carriage fitted with a hot air pipe is coupled with the trolley to dry the film until it reaches the position 12 where it is uncoupled, the holder deflated and the tube removed for aluminising. The trolleys run on rails provided at the pulley ends with arcuate guides and inwardly directed flanges which retain the trolleys during the inverting and uprighting movements. Specification 675,853 also is referred to.
Patent GB-192774-A (GB)
Title: Improvements relating to the propulsion of ships
IPC: B63H5/10
Filed: 1922-04-13
Abstract: 192,774. Moody, R., Robinson, G. F., and Robinson, M. T. April 13, 1922. Screw propellers.-Two substantially similar screw propellers are mounted with their bosses f adjacent, and with their blades a, b in alignment, the diameter of the leading propeller being onesixth less than that of the after propeller but in all other properties similar. The propeller shaft may be extended and supported in a rudder post e.
Patent GB-208314-A (GB)
Title: Improvements relating to sheet-metal seaming machines
IPC: B21D51/28
Filed: 1922-10-31
Abstract: 208,314. Porter, G. F., and Excel Co., Ltd. Oct. 31, 1922. Seaming.-A machine as described in Specification 19105/92 is provided with a moving lever g adapted to support the overhanging end of the mandrel b during seaming and with a guard to protect the operator from such lever. If the lever engages a reduced end i of the mandrel b the guard comprises a sleeve j shrunk or screwed on the mandrel and a U-shaped plate n fixed above the sleeve so as to allow just space enough for removal of the seamed body. The sleeve has a closed end l and a slit m for the lever. If the lever engages the unreduced end of the mandrel b, Fig. 8, the plate n is enlarged to enclose the end of the mandrel also and is pivoted at n' so that it can be swung aside for removal of the work, its movement being limited by stops u, t.
Patent GB-600531-A (GB)
Title: Improvements in cardboard and like boxes
IPC: B65D5/38
Filed: 1945-11-08
Abstract: 600,531. Boxes. MESSENGER, C. S., ANDREWS, A. W., and TAYLOR & CO., Ltd., E. F. Nov. 8, 1945, No. 29806. [Class 18] In a cardboard box of the type comprising a container enclosed by one or two slidable casings, the container is erected from a blank such that it has an open top surrounded by a frame whose sides 6 or ends 7, or (as shown) both, are strutted against the bottom by flanges 8, 10, which may have extensions 9, 11. A flat card 12 (or a tray-like insert) keeps the flanges 8, 10 vertical. The bottom of the container has slits 25 (or a slot) engaged by tongues 24 on the casings. When the struts 8 are omitted, the tongues 24 may be cut from the tops of the casings to engage under the sides 6 of the frame. The outer ends 18 of the casings are secured by tongues 19 (slit at 22) slipped through slits 20.
Patent GB-965415-A (GB)
Title: Improvements in or relating to apparatus for effecting the supply of feed water to steam generators and the like
Inventor: PENNINGTON REGINALD
IPC: B01D19/00
Filed: 1960-08-30
Abstract: 965,415. Feedwater supply systems for steam boilers. HICK HARGREAVES & CO. Ltd., and F. L. DONNISON. Oct. 31, 1961, [Aug. 30, 1960; Sept 2, 1960], Nos. 29832/60 and 30300/60. Heading F4A. In a feed water supply apparatus for steam generators a boiler feed water pump or like device is supplied from a water storage tank disposed between the said pump and one or more deaerating headers adapted to be supplied with steam and water and means are provided whereby a steam space within the storage tank is substantially isolated from pressure fluctuations within the headers. In the form shown, condensate is fed through a pipe 3 to a deaerating header 6 by an extraction pump 2 from a surface condenser 1. Bled steam is fed via the pipes 4, 5 to the deaerating header 6 and also to a baffled storage tank 8 via a non-return valve 13. An outlet pipe 7 from the header 6 leads to below the water level of the storage tank 8 and an outlet 9 from this tank leads through a lowpressure control valve 10 to an additional tank 11 and thence to a feed pump 12. Differential heads H 1 , H 2  vary with the rate of flow of water from the condenser, a decrease in flow causing a rise in pressure in the deaerator 6 and a reduction in the head H 1 ; correspondingly an increase in the flow causes a fall in pressure in the deaerator 6 with the resultant rise in the head H 1 . These variations in head accommodate variations in pressure in the deaerator and ensure that the vessel 8 is under constant pressure conditions. The head H 2  is controlled by the valve 10 so that the head of water above saturation pressure at the pump inlet is automatically varied so as to cause the discharge pressure to be adjusted to a value required by the system.
Patent GB-175701-A (GB)
Title: Improvements in or relating to apparatus for the control of variable speed gears
IPC: F16H63/46
Filed: 1920-10-22
Abstract: 175,701. Oddie, F. A., and Hingston, W. H. Oct. 22, 1920. Controlling variable-speed gearing. -Cams J, K secured to a hand-controlled spindle C cause pawls reciprocated by, say, the main clutch actuating-mechanism, to engage selectively levers D<2> having arms D' actuating selector bars A, B. For each cam there is a pair of pawls G or H, which oscillate or reciprocate in opposite directions. The pawls G, H which are pressed towards the cams by springs, have square notches G<2>, H<2> adapted to catch upon square snugs D<3> upon the levers D<2>. The pawls are carried on pivoted or sliding members E, F connected by links P, P<1> to pins Q, Q<1> resiliently carried on a disc N, which is oscillated backwards and forwards each time the main clutch is released and engaged again. Selection of a new speed is effected by hand by sliding a rack bar C<1> geared to the cam spindle C. Operation of the main clutch brings the gearing to neutral and then brings the selected speed into being. A suitable change-speed gear is described which forms the subject-matter of Specification 175,854.
Patent GB-617645-A (GB)
Title: Improvements in or relating to electrical insulation
IPC: H01B3/04
Filed: 1946-10-07
Abstract: A copper conductor carrying mica insulation bonded with an organic binder is treated with a compound having the group CH2=C<, the polymerization of which is normally inhibited by copper, the process comprising heating the insulated conductor in an inert atmosphere to decompose and volatilize a major proportion of the organic binder whereby the surface of the copper is chemically altered, impregnating the treated conductor and insulation with a composition comprising the CH2=C< compound and polymerizing.  The insulation, which is composed of mica or substitutes such as bentonite and vermiculite with a sheet backing of asbestos or glass fibre cloth, is bonded with a binder such as polyisobutylene, terpene-castor oil mixtures or asphaltic materials.  Heating in an inert atmosphere such as nitrogen or carbon dioxide at 300-600 DEG  C. decomposes and volatilises the binder which carbonises to some extent and allows the later impregnation of the varnish.  The impregnant is preferably completely polymerizable and may consist of an alkyd or other ester resin dissolved in the compound having the CH2=C< group, e.g. styrene, vinyl acetate, methyl methacrylate, methyl vinyl ketone, acrylonitrile, parachlorostyrene, allyl alcohol and acrylic acid, or of styrene or dichlorostyrene alone or containing a small proportion of their respective polymers.  Before impregnation, the conductor may be evacuated to remove air and moisture and is then dipped in the resin composition, which may be forced into the insulation by pressure.  Polymerization is then effected by heating, e.g. at 125-150 DEG  C., and/or by actinic light.  Specified compositions are a resin derived from propylene glycol, succinic acid and maleic anhydride, dissolved in styrene containing benzoyl peroxide as catalyst; and a castor oil maleate dissolved in styrene.
Patent GB-895731-A (GB)
Title: Improvements in coupling spindles for connecting rolling-mill rolls with the pinionsdriving them
IPC: F16D3/18
Filed: 1960-08-31
Abstract: 895,731. Shaft couplings; universal joints. SCHLOEMANN A.G. Aug. 31, 1960 [Sept. 17, 1959], No. 29976/60. Class 80 (2). A rolling mill having its rollers 4 connected to drive spindles 2, 3 in a pinion housing 1 by a pair of shafts each of which has a universal joint at either end, has couplings between the drive spindles and the rollers consisting of interengaging teeth 31, 32, Figs. 1, 2, or 46, 50, Figs. 4, 5, held in engagement by permanent magnets 33, 51, respectively. The teeth 31, 32 are formed in a coupling muff 27 and a frustoconical shaped connector 22, and have pointed tips to facilitate their engagement, the permanent magnet 33 being carried by the coupling muff. The connector 22 contains the partspherical end 20 of a roller spindle 7, having arcuate teeth 21 meshing corresponding teeth within the connector so as to form in combination with bearing rings 23 a universal joint. As shown, the spindle 7 is splined for axial movement relatively to a roller 11, the latter being formed with a part-spherical end 13 having arcuate teeth 14 meshing corresponding teeth within a coupling muff 16 fast on the driving spindle 2. Rightwards axial movement of the spindle 7 within the roller 11 is limited by a spring 52. The coupling muff 29 and its driving spindle 3 are mounted in a support 5 which can be slidden leftwards of Fig. 1 axially to such a position that an end disc 10 fast on the spindle 7 engages the bottom of an axially splined recess in the roller 11, further leftward movement of the support 5 overcoming the force of attraction between the permanent magnet 31 and the adjacent connector 22 to disengage the teeth 31, 32. The roller 11 may then be removed and replaced by another. In a modified construction, the shaft 3, Fig. 4, is formed with a generally conical end 49 which can be passed into a part-spherical universal joint element 38 connected for rotation therewith by teeth 46, 50, Fig. 5, held in engagement by permanent magnets 51. The part-spherical universal joint element 38 is formed with arcuate teeth 39 meshing corresponding teeth within a coupling muff 35 at the end of the spindle 7, the teeth being kept in engagement by the attraction of a permanent magnet 35 at the base of the coupling muff. A seal 40 biased by a spring 42 closes the recess of the muff. As a modification, forms of universal joints having relatively axially movable parts may be employed instead of the splined shaft construction shown.
Patent GB-198640-A (GB)
Title: Shock absorber mounting for vehicles
IPC: B60G15/04
Filed: 1922-11-02
Abstract: 198,640. Hassler, R. H. June 5, 1922, [Convention date]. Vibration-dampers. -A retarding check device is pivotally mounted on one of the relatively moving parts of a vehicle, and the actuator thereof is connected to another of the relatively moving parts by means permitting radial adjustment of the device in an approximately horizontal plane to enable the device to be fitted in various positions to clear obstacles such as steerings rods &c. As described, the device consists of a friction damper comprising a hub 19<c>, Fig. 10, formed with a disc 19<a> carrying a friction disc 16, a disc 24 carrying a friction disc 26 and capable of axial but not rotary movement relatively to the disc 19<a>, and a casing 17 and cover 30 which rotate relatively to the friction discs when relative movement takes place between the vehicle parts. The discs are pressed outwards against the casing and cover by a spring 28. The hub 19<c> is formed with an ear 19 which is mounted on a bolt 21 between lugs 11<b>, Fig. 1, on the vehicle frame. The actuating arm 23 carried by the casing 17 is connected by a pliable unit 27, Fig. 2, to the upper end of a vertically floating member 25 which is connected at its lower end by a pliable unit 33 to a member 37, Fig. 5, adjustably secured on the tapered shank 39<a> of a bracket 39 secured to the axle. The pliable unit 33 is clamped between a plate 44 and a member 41 formed with a tapered opening to engage a taper 37<a> on the member 37.
Patent GB-718038-A (GB)
Title: Improvements in radar systems
Inventor: MCMULLIN TERENCE ALEXANDER
IPC: G01S13/66
Filed: 1951-12-24
Abstract: 718,038. Pulse radar; automatic gain control. MURPHY RADIO, Ltd. Dec. 24, 1952 [Dec. 24, 1951], No. 30133/51. Classes 40 (5) and 40 (7) Relates to a pulse interrogator-beacon-responder radar system in which each interrogator is of the type described in Specifications 693,930 and 690,480, i.e. it comprises a locally generated strobe pulse which automatically searches for and locks on to a response pulse, "memory" means being provided for maintaining the locked position of the strobe during temporary fading of the response pulse. In such a system the maximum number of interrogators to which a single beacon can respond is inversely proportional to the recurrence frequencies of the interrogators but in order to ensure that an interrogator strobe pulse will lock on to a beacon response pulse the recurrence frequency of the responses received by said interrogator must not fall below a critical value and the response recurrence frequency subsequently necessary to maintain the lock must not fall below a minimum value which is less than said critical value. According to the present invention, the normal recurrence frequency of an interrogator is greater than said critical value and after its strobe pulse has locked on to a response pulse the recurrence frequency is automatically controlled so that the mean recurrence frequency of the responses is just greater than said minimum value, thereby increasing the availability of the beacon. As shown in Fig. 1 a first output from the strobe pulse generator 1 is applied together with the received responses 10 to a first gate circuit 4 whose output is applied via a rectifier 3 to a circuit 2 controlling the timing of the strobe pulse and a second pulse output from generator 1 of duration equal to the response pulses is applied together with the received responses 10 to a second gate circuit 5 whose output is applied via rectifier 6 (Fig. 2 also) and amplifier 14, Fig. 2, to a circuit 7 comprising a thyratron blocking- oscillator 22, Fig. 2, which controls the interrogator recurrence frequency. The frequency of oscillator 22 is proportional to the voltage of its screen grid which is directly coupled to the anode of amplifier 14 and the positive pulse output from rectifier 6 is integrated by capacitors 11 and 16 so that when the strobes lock on to a response pulse the anode voltage of V14, and hence the frequency of V22, is reduced. A negative A.G.C. voltage may be derived from a tapping 21 on a resistor 18 connected in series with resistor 17 between the anode of V14 and a negative potential source, the junction of resistors 17 and 18 being connected to earth through a diode 19.
Patent GB-824348-A (GB)
Title: Process for preparing steroid compounds
IPC: C12P33/00
Filed: 1956-10-03
Abstract: D 4 and D 1,4-steroids are prepared by subjecting steroids in which the C1 and C2 atoms have no substituents and ring A is saturated to the dehydrogenating activity obtainable in a medium fermented by a micro-organism of the genus Nocardia, e.g. by cultivating the Nocardia micro-organisms in an aqueous medium in the presence of the steroid reactant.  The process may be modified in that the steroid reactants are contacted with dehydrogenating enzymes produced by the Nocardia microorganisms.  Suitable micro-organisms of the genus Nocardia are of the species N. blackwellii, N. asteroides, N. minima, N. globerula, N. leishmanii, N. formica, N. convoluta, and N. corallina.  The process is applicable to the preparation of steroids irrespective of the substituents attached to, or degree of unsaturation in rings B, C and D.  Substituents that these compounds may contain include oxo substituents in the 11-, 20- and 21-positions, hydroxy substituents in the 11b -, 17a - and 21-positions, acyloxy substituents in the 21-position, and halo (particularly fluoro) substituents in the 9a -position.  The preferred ester substituent in the 3- and/or 21-position is the acetate although other lower hydrocarbon carboxylic acid esters such as the propionate, butyrate, t-butyl-acetate and benzoate may also be used.  The 3-hydroxy group present in any of the steroid reactants is converted to a 3-keto group during the reduction process. D 1,4-Pregnadienes which are obtainable by the process are the 3-20-dione, 3,20-dione-17a -ol, 3,20-dione-21-ol, 3,20-dione-17a ,21-diol, 3,20-dione-17a -ol-21-al, 3,11,20-trione, 3,11,20-trione-17a -ol, 3,11,20 - trione - 21 - ol, 3,11,20 - trione - 17a ,21 - diol, 3,11,20 - trione - 17a  - ol - 21 - al, 3,20 - dione - 11b  - ol, 3,20 - dione - 11b  - ol - 21 - al, 3,20 - dione - 11b ,21 - diol, 3,20 - dione - 11b ,17a -diol and 3,20-dione-11b ,17a ,21-triol derivatives of D 1,4-pregnadiene, the corresponding 9a -halo, e.g. the 9a -fluoro, derivatives, and the corresponding D 4-pregnenes.  In the examples, D 1,4-pregnadiene-11b ,17a ,21-triol-3,20-dione is prepared from pregnane-11b ,17a ,21-triol - 3,20 - dione, D 1,4 - pregnadiene - 17a ,21-diol-3,11,20-trione is prepared from pregnane-17a ,21 - diol - 3,11,20 - trione 21 - acetate, from allopregnane - 17a ,21 - diol - 3,11,20 - trione 21-acetate, and from pregnane-3b ,17a ,21-triol-11,20-dione 21-acetate and is then acetylated to form D 1,4-pregnadiene-17a ,21-diol-3,11,20-trione 21-acetate, and D 1,4-pregnadiene-17a ,21-diol-3,20-dione is prepared from pregnane-17a ,21-diol-3,20-dione and from the corresponding allopregnane compound, and D 4-pregnene-11b ,17a ,21-triol-3,20-dione is prepared from the corresponding pregnane.
Patent GB-818658-A (GB)
IPC: H05B6/34
Filed: 1957-09-26
Abstract: 818,658. Inductive stirrers for electric furnaces. ALLMANNA SVENSKA ELEKTRISKA A.B. Sept. 26, 1957 [Oct. 13, 1956], No. 30192/57. Addition to 721,124. Class 39(3) A polyphase stirring winding for a melting furnace or hot metal mixer according to the parent Specification is modified in that it consists of only three coil sections 2, 3, 4; and the outer coil sections and the inner section, respectively, are fed symmetrically with respect to the middle of the winding from two phases so that the current in one phase has 90 degrees phase displacement with respect to the current in the other phase. The number of turns of these coil sections are approximately n 3 = 2n 2 =2n 4 .
Patent GB-174441-A (GB)
Title: Improvements in and relating to devices for determining intervals of time
IPC: G04F8/00
Filed: 1920-10-26
Abstract: 174,441. British Thomson - Houston Co., Ltd., (General Electric Co.), Oct. 26, 1920. Stop mechanism.-A device for determining the time-interval elapsing between any two or more events such as the closure of a switch and the response of a relay thereto consists of a plurality of members 15, 15', 15" frictionallv mounted on a shaft 11 driven at a constant speed by means of a motor 12, and means for stopping the members in response to changes in electric circuits. Each member is provided with a dial graduated in hundredths of a second, and indicating pointers 25, 26, carried by the members 15, 15', indicate directly on the scale the time interval between the stopping of two members. The means shown for stopping the members comprises electromagnets 18, 19, 20 and spring controlled pawls 17 secured to the armatures thereof and adapted when the magnets are energized to engage one of the notches 16 on the members 15, 15<1>, 15<11>.
Patent GB-266272-A (GB)
Title: Improvements in driving mechanism for multiple axle vehicles
IPC: B60K17/36
Filed: 1925-12-01
Abstract: 266,272. North, O. D. Dec. 1, 1925. Coupling driving-axles or wheels.- In motor vehicle driving mechanism in which the driving-wheels are mounted in pairs on short axles at the ends of equalizing beams rocking on the casing of the usual live axle, the equalizing beams consist of totally enclosed casings for the trains of gear which drive the wheels. In the form shown, pairs of driving-wheels 11 are mounted at each end of the usual rear axle 6. The axles 10 of the wheels 11 are carried at the ends of beams 7 which are rockingly mounted one at each end of 'the casing 6 enclosing differential gear and the live axle 5. The wheels are driven from the axle 5 by spurgearing 12, 13, 15 revolving within the beams. To facilitate removal, each wheel with its axle 10 and gear 15 is mounted in a casing 17 readily detachable from the end of the beam. The wheels may be driven from the shaft 5 by chain or differential bevel-gearing. The beams may be crossconnected or the two front wheels may be brought together between the beams.
Patent GB-474861-A (GB)
Title: Improvements relating to loom heald frames
IPC: D03C9/06
Filed: 1936-11-06
Abstract: 474,861. Loom heald-frames. CHARPENTIER, R. Nov. 6, 1936, No. 30308. Convention date, Nov. 5, 1935. [Class 142 (i)] To prevent the heald-carrying rods T<1>, T<2> from jumping out of their supporting hooks C fixed to the battens L<1>, L<2>, they are engaged by movable brackets or cursors G<1>, G<3> slidable on a rail S<1>, Fig. 1, or on a double rail S<3>, Fig. 3. Various forms of cursors are described. A known tie rod E and bracket G are shown in Fig. 1.