baber/WOPTO huggingface dataset:
Patent GB-1116251-A (GB)
Title: Variable flow metering devices
Inventor: BOTTOMS HARRY SIMISTER
IPC: G01F1/20
Filed: 1965-01-11
Abstract: 1,116,251. Valves. JOSEPH LUCAS (INDUSTRIES) Ltd. 15 March, 1966 [11 Jan., 1965], No. 1136/65. Heading F2V. A variable flow metering device comprises a tube 14, formed with an orifice 15 having diverging sides, which is slidable in a fixed outer sleeve 11 and a movable outer sleeve 12. The sleeve 12 is formed of two concentric parts having passages 13 between the ends so that the movable sleeve 12 is pressure balanced in respect of the areas 18 and 19. A vane 16 is carried by the sleeve to form the flow passages with the inclined surface 17. The fluid impinging on the surface 17 counteracts the tendency of the sleeve to move.
Patent GB-807065-A (GB)
Title: Improvements relating to controlling the speed of alternating current electric motors for driving gyroscopes
Inventor: SMITH EDWARD HILARY FROST
IPC: G01C19/06
Filed: 1954-01-14
Abstract: 807,065. Automatic speed control systems. ELLIOTT BROS. (LONDON) Ltd. Jan. 14, 1955 [Jan. 14, 1954], No. 1153/54. Class 38 (4). The speed of a gyroscope rotor, driven by an A.C. motor, is maintained at a value lower than the synchronous speed, by a percentage greater than the percentage slip in the motor at the maximum voltage of the supply. The motor 2 is supplied from an A.C. generator 4, through a voltage controller 11, and drives the gyroscope rotor 1, which is provided with an inductor alternator pick-off arrangement, 5, 5a. The output of the latter, the frequency of which depends upon the rotational speed of the rotor, is applied to a frequency discriminator comprising tuned filters 7, 8 tuned to frequencies above and below that of the desired output frequency, the outputs of which control the voltage controller 11 in a sense to restore the speed of motor 2 to the required value. The voltage controller may comprise saturable inductors, Fig. 2 (not shown), the frequency discriminator may be of the type including a standard frequency source and the pick-off device may be a microphone.
Patent GB-606386-A (GB)
Title: Improvements in roofing structures
IPC: E04B7/20
Filed: 1946-01-14
Abstract: 606,386. Roofs. COOMBES, P. C., and SPEAKER & CO., Ltd., G. R. Jan. 14, 1946, No. 1241. [Class 20(iv)] A roof structure for carrying a covering such as slates or tiles is formed of panels consisting of rafters 2 and battens 1 pivotally connected, as by rivets 4, so that they can be collapsed trelliswise to occupy a small space for transport to the site of erection. The rafters may be of wood with metal backing strips on their under faces, the end portions of the strips extending beyond the ends of the rafters and being bent downwardly at the eaves to form attachment brackets for facia boards and upwardly at the ridge for connection to similarly bent strips on the other side of the roof.
Patent GB-1043314-A (GB)
Title: New cables and their production
IPC: H01B7/12
Filed: 1964-01-10
Abstract: A rope or electric cable has a centre filament forming the core of the rope or the eletrical conductor which is surrounded by a composite structure of bonded textile yarns all arranged substantially parallel to the centre filament and an external envelope bonded to said yarns, the breaking strength of the elongation at break of the centre filament being greater than that of the composite structure so that the composite structure will always break before the centre filament.  The centre filament for a conductor may be stranded or unstranded, or be of a cellular nature or be coated in a spongy material to give the cable buoyancy.  For a rope a steel core may be used.  The textile yarns of the composite structure may be natural or artificial fibres, the latter may be polyethylene terephthalate or materials based upon polyamides, polyesters, polyolefines, polyacryls and polyvinyls, and are binded together with rubber latex, vinyl or other polymers, polycondensates, paraffins and waxes which contain protecting and/or stabilizing agents, fungicides or fire-proofing products.  The external envelope on the composite structure may be a wrapping or braiding of polyethylene terephthalate or polyhexamethylene adipamide yarns and coated with abrasion resistant resin such as polyvinyl chloride, elastomers, polyamides and polytetrafluoroethylenes.
Patent GB-936474-A (GB)
Title: Apparatus having a magnetically suspended movable body, the position of which is stabilized by an electronic device comprising a high-frequency oscillator
IPC: G01G23/00
Filed: 1960-01-14
Abstract: 936,474. Automatic control of electromagnetic suspension. CESKOSLOVENSKA AKADEMIE VED. Jan. 14, 1960 [Jan. 16, 1959], No. 1342/60. Class 38 (4). In a system in which variations in the vertical position of an electromagnetically suspended body influence a pick-up coil forming part of the grid circuit of an electronic oscillator, the consequent changes in output of which control the energization of the suspending eleotromagnet, the oscillator anode supply is retroactively stabilized and the oscillator valve internal capacity is neutralized by 50% at least. In Fig. 3, vertical movement of a ferro -magnetic body A alters the tuning of the grid circuit of a high-frequency tuned-anode tuned-grid oscillator E1, the interelectrode capacity of which is partly neutralized by capacitors C4, C5. Consequent alteration of the oscillator output, which is rectified by a valve E2, controls, through an amplifier E3, the energization of a supporting electromagnet L2 so that the force exerted on the body is adjusted to maintain the body in a fixed vertical position. The anode supply to the valves is derived from an A.C. source through a full-wave rectifier E7 and the applied voltage is stabilized by applying it through a potentiometer R7 and an amplifier E5 associated with a glow discharge valve E6 to control valves E4 connected in series with the supply. Applications to low friction bearings for weighing and force measuring apparatus, rotor balancing and ball-bearing flaw detection are referred to.
Patent GB-1165323-A (GB)
Title: New Peroxyesters and uses thereof
Inventor: DIXON DAVID RODNEY
IPC: C07C409/38
Filed: 1966-01-12
Abstract: 1,165,323. Peroxyesters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 20 Dec., 1966 No. 1422/66. Heading C2C. [Also in Division C3] Carboxylic peresters (a) of formula where R and R<SP>1</SP> are monovalent tertiary hydrocarbyl groups, and X and Y are hydrocarbyl groups, same or different, unsubstituted or substituted, (b) with a cyclic structure in which R and R<SP>1</SP> are replaced by R<SP>11</SP>, a divalent ditertiary hydrocarbyl group which may be substituted or unsubstituted and (c) with polymeric structure of receiving units are prepared by reacting the corresponding acyl halides with tert. hydroperoxides e.g. t.butyl hydroperoxide or 2,5-dimethyl-2,5-diperoxyhexane, preferably in the presence of an inert solvent and a basic agent, or by other conventional methods. Di-t-butyl peroxy diglycollate, di-t-butylperoxy oxydipropionate, di-t-butylperoxy oxydi (4-benzoate), cyclic-(2,5-dimethyl-2,5-diperoxyhexane diglycollate, and poly-(2,5-dimethyl-2,5- diperoxyhexane diglycollate are claimed. The products may be as catalysts in addition polymerization processes.
Patent GB-855912-A (GB)
Title: Transfer sheets and the production of same
IPC: B41M5/04
Filed: 1957-01-14
Abstract: 855,912. Hectographic carbon and like papers. TICKNER, A. (Columbia Ribbon & Carbon Manufacturing Co. Inc.). Jan. 14, 1957, No. 1423/57. Class 96. A hectograph, or pressure-transfer carbon sheet has its transfer layer 15 covered with an overcoating layer 17 locally transferable with the transfer layer 15 and which includes pigments contrasting strongly with the colour in those areas from which the transfer layer and overcoating has been subjected to local pressure. The layer 17 may comprise a microcrystalline wax with the addition of paraffin and carnauba wax, titanium dioxide, brown and orange or yellow and green pigments and also may include a small quantity of lamelliform particles e.g. aluminium powder. In this embodiment in which a hectograph transfer sheet is used to prepare a master sheet for duplicating, the image areas on the transfer sheet stand out clearly against the brightly coloured overcoating layer 17 so that the transfer sheet serves as a clearly readable proof sheet and the normal inkribbon may be dispensed with to give a clearer impact by the type on the transfer sheet. In an embodiment for making photo process master sheets, the transfer material is light in colour and the overcoating layer dark, and may comprise chlorinated rubber, beeswax, carbon black and carbon tetrachloride. Specification 669,212 is referred to.
Patent GB-103522-A (GB)
Title: Improvements in or relating to Valves for Pneumatic Tyres.
Inventor: SLOPER THOMAS
IPC: F16K15/20
Filed: 1916-01-29
Abstract: 103,522. Sloper, T. Jan. 29, 1916. Tyre-inflating valves.-A tyre valve of the looseplunger type is provided with a friction device engaging the bore of the stem so as to prevent accidental displacement or loss of the valve when the valve nozzle is removed. The device is operatively connected to the valve so as to allow a small free movement. In one form, a springy wire loop C, Fig. 3, is engaged in two slots in the valve spindle B', or an inverted U-loop is engaged in one slot. In another form, spring fingers G, Fig. 6, are formed with a plate G<1> which is bent round the valve spindle; this arrangement operates in conjunction with shoulders formed on the spindle, as shown.
Patent GB-187899-A (GB)
Title: Improvements in electric organ actions
IPC: G10B1/04
Filed: 1922-01-17
Abstract: 187,899. Jones, T. H. S., and Jones, H. S. Jan. 17, 1922. Organ manual and coupler actions. - In the couplermechanism of an electricorgan, all the coupling appropriate to a single organ-key is effected through an electromagnetic relay. The key lifts the lever 2 on which is a sliding contact-maker 4 comprising a metallic cylinder surmounted by an insulating collar 7. Preferably one or more flats are provided on the contact maker, against which the spring 9 bears. When electric connection is established through depression of the key, the current energizes the solenoid 10, which operates a hinged armature 11, thus transmitting movement to the sliding pins 12 upon which is a series of collars 13, 14, 15. These collars operate the wedge and laminar contacts at the end of spring arms 16, 17, which are set in pairs of unequal effective length so as to effect a slight rubbing movement to keep the contact clean. When electric connection is made between a pair of the spring arms the appropriate pneumatic valve is operated by a solenoid 21, if the corresponding stop has been drawn to close a switch 20.
Patent GB-1032021-A (GB)
Title: Advanceable roof support assembly
Inventor: BOLTON DOUGLAS HERBERT HEWLETT
IPC: F15B13/042
Filed: 1964-01-14
Abstract: 1,032,021. Valves. DOWTY MINING EQUIPMENT Ltd. Jan. 5, 1965 [Jan. 14, 1964], No. 1659/64. Heading F2V. [Also in Division F1] A valve, Fig. 4 (not shown), connected in a line 17 is operable to connect the supply of pressure fluid from a source 18 to either the right or left-hand portions of the line 17 and is arranged to isolate the line 17 from the source 18 in the event of a predetermined fall in pressure in the portion of the line pressurized. The valve comprises a housing 65 having movable therein two valve members 66, 67 urged by springs 68, 69 against valve seats 71, 72 to isolate the source 18 from the portions of the line 17. Each valve member 66, 67 is movable away from its seat by respective plungers 77, 78 controlled by a manually operated pivoted lever 79. In the inoperative position internal passages 81, 83 in the plungers connect the line 17 to a return line 19. When the plunger 77 is moved, the resulting pressurization of the lefthand portion of the line 17 also pressurizes a line 87 to move a piston 92 to the right against the action of a spring 93, whereby a plunger 89 slidable in the piston 92 can be manually caused to engage a recess 91 in the lever 79 in order to latch the valve in the operated position. If a fall in pressure occurs the spring 93 causes the plunger to unlatch and the valve returns to the original position. The pressurization of the line 17 may be arranged to cause operation of valves controlling the automatic advance of a mine roof support (see Division F1). Reference has been directed by the Comptroller to Specification 990,837.
Patent GB-478770-A (GB)
Title: Improvements in or relating to the mounting of electric switches on walls
IPC: H01H11/00
Filed: 1937-01-20
Abstract: 478,770. Switch covers. HOLLEDGE, A. A., HOLLEDGE, T. W., HOLTON, E. G., BUSH, L., and BAILEY, F. H. Jan. 20, 1937, No. 1695. [Class 38 (v)] The metal cover plate 1 of a flush-mounted switch is formed with a plurality of sharp projections 2 by indenting with a suitable tool. The projections 2 engage the wall and prevent rotation of the cover plate.
Patent GB-1186001-A (GB)
Title: Roof Support Assemblies Suitable for Use in Mines
Inventor: PAWLING FRANK
IPC: E21D23/20
Filed: 1966-01-13
Abstract: 1,186,001. Advancing mine roof support systems. DOWTY MINING EQUIPMENT Ltd. 13 April, 1967 [13 Jan., 1966], No. 1704/ 66. Heading E1P. A roof support assembly comprises a series of fluid pressure operated advanceable master roof supports M separated by one or more slave roof supports S, each roof support having a valve assembly 1 controlling the advance of its roof support and automatically operable when supplied with a fluid pressure signal through a line 14 (master) or 36 (slave), the signal being sent to the slave support adjacent to a master roof support by manual operation of an advanceinitiating control valve 4, or 5 on that master roof support and after the consequential advancement of the slave support, the signal is passed to the next slave support to cause its advance and so on until the next master support M has received the signal and has advanced, whereafter the signal sending is terminated. Each advance-initiating control valve 4, 5 has a handle 8 pivotable clockwise to cause pressurisation from a supply line 2, 4' of a control line 12 for causing the advance in turn of the adjacent slave supports and master support to the right thereof, or pivotable anticlockwise to cause pressurisation of a control line 7 for causing the advance in turn of the adjacent slave supports and master support to the left thereof. When the control line 7 or 12 is pressurised a line 35 in the adjacent slave support S is pressurised. The line 35 communicates through a sequence valve assembly 27 with the slave support's signal line 36 and the slave support thus undergoes an advancing operation under the control of its valve assembly 1. At the end of the advancing operation with the slave support again in roof supporting position a line 45 becomes pressurised. Pressure in the line 45 causes a piston 31 to move the sequence valve assembly 27 to its other position thereby interconnecting the line 35 with a line 37 normally connected to exhaust through passages 41, 42. The line 37 is thus connected by way of non-return valves 24, 22 or 23, 25 and a line 21 to the line 35 of the next slave roof support which thus undergoes an advancing operation in an identical manner. Each slave support is thus advanced in turn until a control line 15 or 16 of the next master support is pressurized through a valve 26 or 26' from the line 37 of the adjacent slave support. The control line 15 or 16 is connected via a non-return valve 17 or 18 to the master support signal line 14, which thus pressurised, causes the master support to be advanced. When the control line 7 or 12, is pressurized by operation of the master valve 4, 5, the associated valve 26 or 26' closes to prevent access of fluid to the associated control line 15 or 16 and consequential inadvertent advance of the associated master support. The valve assembly 1 may be as described in Fig. 1 of 1,114,006.
Patent GB-907453-A (GB)
Title: Means for unwinding tape wire or the like material from, or for winding same onto, a spool or similar element
IPC: B65H23/198
Filed: 1960-01-18
Abstract: 907,453. Control of several A.C. motors. DEROSIERE, A. L. Jan. 18, 1960 [Jan. 19, 1959; July 17, 1959], No. 1708/60. Class 38 (3). Magnetic tape is passed from one reel to another by means of a capstan driven by a synchronous motor, the reels being respectively coupled to motors of the asynchronous type. The motor 9, coupled to the feed reel, is connected to A.C. source 10 through winding 11 of saturable reactor 12, a switch 13 being vibrated at a rate proportional to the speed of the motor. Direct-current from source 14 is supplied through the switch 13 and rectifier 15 to capacitor 16 which supplies a voltage, proportional to the frequency of the interrupted current, to the control electrode of amplifier 17. A saturating winding 18 of the reactor 12 is in the output circuit of the amplifier. At the commencement of the unwinding operation, when the motor speed is low, the amplifier 17 has a low voltage input and a high current output, so that winding 11 affords a low impedance and the motor develops a high torque. As the tape unwinds, the speed of the feed motor increases and its torque is progressively reduced. On the other hand, the speed of the take-up motor decreases during a winding operation and its torque is gradually increased. Consequently, the tension of the tape remains substantially constant as the tape passes between the reels. In another arrangement, speed variations of the motor 9 are detected by a phonic wheel which is coupled to the motor and cooperates with a winding providing a voltage proportional to the speed, Fig. 3 (not shown).
Patent GB-413360-A (GB)
Title: Improvements in and relating to weft feeler devices for looms
IPC: D03D51/34
Filed: 1934-01-17
Abstract: 413,360. Weft feeler arrangements for stopping looms. FEGTER, H., 60, Schliessfach, Mittweida, Saxony, Germany. Jan 17, 1934, Nos. 1718 and 1719. Convention dates, Jan. 17, 1933 and Sept. 13, 1933. [Class 142 (iii).] In a mechanical weft-feeler device for looms having spring loaded adjustable weft feelers, the feeler operates directly on the catch of the weft hammer by means of an elastic shaft, Bowden wire &c. which is secured to the feeler. The oscillating slay 1 of the loom brings the shuttle box 4 and the shuttle 7, apertured at 5, 6 into position so that the weft feeler 8 may contact with the yarn 10 on bobbin 9. The feeler 8, spring pressed at 19, is carried by a sleeve 11 adjustably mounted in an adjustable ring 21 furnished with a scale 23. Secured to the feeler 8 is a Bowden wire 27 sheathed at 28, the ends of the sheath being attached to a cover 17 and to a collar 35, adjustably mounted on a bar 36 connected to a loom-disabling device 39. Pivoted on the collar 35 is a pawl 33, an extension 47 of which, actuated by the movements of the Bowden wire 27, finally lowers and maintains the nose 41 of the pawl 33 into the path of the weft hammer 43, shouldered at 45, when the weft bobbin is almost exhausted, to disable the loom. A weft fork 38 may also be fitted, operating in known manner, to disable the loom when the weft thread breaks. The end of the Bowden cable acting directly on the catch or pawl 33 may, in an alternative arrangement, be secured by straps &c. to the loom framing, e.g. to the breast beam.
Patent GB-1105804-A (GB)
Title: Rail-mounting flat plug connector
IPC: H01R9/26
Filed: 1967-01-12
Abstract: 1,105,804. Two-part couplings. G. GL€SEL. 12 Jan., 1967 [28 Oct., 1966], No. 1743/67. Heading H2E. Contact blades 5 which extend from a common link 2 are housed in a flat insulating body 1 whose end wall has slots 11 for receiving and guiding individual mating socket contacts, e.g. 7, the connector being mounted on a rail 4, adjacent similar connectors, by means of a clip 3. The link 2 is resilient and snap-fits into the body 1, the contact blades 5 having recesses 8 which engage shoulders 9 of the body.- The contact blades 5 may lie either in a common plane or mutually perpendicular planes, and some or all of the slots 11 may open on to a side wall of the body 1, the sides of the slots being closed by the wall of an adjacentlymounted connector body.
Patent GB-1131273-A (GB)
Title: Video recorder and/or reproducer
IPC: G11B15/28
Filed: 1966-01-13
Abstract: 1,131,273. Video recorder. RADIO CORPORATION OF AMERICA. 13 Jan., 1966 [5 Feb., 1965], No. 17949/66. Heading G5R. An oblique track magnetic recording and play-back arrangement, particularly for video signals, comprises a fixed mandrel formed in two parts 10, 11 and set at an angle a to the main direction of tape movement, a headwheel 12 carrying a magnetic head 13 rotating between the two parts of the mandrel, a capstan 21 and tape guide means including front rollers 18, 26, rear rollers 19, 24 and fixed guides 31 on the mandrel which direct the tape from a supply reel 17 on a path which extends half way round the mandrel from roller 18 to roller 19, thence to the drive capstan 21 and via the other half of the mandrel between rollers 24 and 26 to the take-up reel. In use as a video recorder the head 13 records a complete frame during each revolution by recording the first field of the frame during movement between roller 18 and roller 19 and the second field during movement between rollers 24 and 26. Sound signals and control signals are recorded on edge tracks of the tape by heads 23, 23<SP>1</SP> positioned in the tape loop formed around the capstan and idler roller 22. Because of the presence of the loop each oblique track on the tape carries the first field of one frame on one half of the track and the second field of a later frame on its other half.
Patent GB-653320-A (GB)
Title: Improvements relating to the catalytic cracking of petroleum hydrocarbons
IPC: C10G65/12
Filed: 1948-01-20
Abstract: A sulphur-containing petroleum oil of which a substantial proportion boils above 400 DEG  C., is contacted in the presence of hydrogen with a sulphur-resistant hydrogenation catalyst under conditions of temperature and pressure to convert the sulphur into hydrogen sulphide which is then removed; a gas oil fraction boiling between 200 DEG  and 400 DEG  C. is separated from the hydrofined oil, and the residue is passed to a catalytic cracking stage.  The process enables good-quality gas oil and high-octane gasoline free from sulphur to be obtained without corrosion of the cracking plant.  An Iranian wax distillate (87 weight per cent boiling above 400 DEG  C.) containing 1.5 per cent sulphur, was passed with hydrogen (4000 cubic feet per barrel of feedstock) over cobalt molybdate supported on alumina at a space velocity of 1.0 v/v/hr., a temperature of about 780 DEG  F., and a pressure of 1000 pounds per square inch.  After removal of hydrogen sulphide, the hydrofined product was found to contain only 0.04 per cent sulphur.  The oil now had 59 per cent boiling above 400 DEG  C.  A gas oil fraction boiling between 213 DEG and 350 DEG  C. and representing 19 per cent by weight of the original feedstock was separated by distillation; this gas oil had Diesel Index 33.  The residue remaining after the separation of the gas oil was cracked at 950 DEG  F., using a fixed bed of silica-alumina as catalyst.  Gasoline of octane number 80 and representing 31 per cent of the original feedstock was obtained.