baber/WOPTO huggingface dataset:
Patent GB-129712-A (GB)
Title: Improvements relating to the Production of Fabrics having the Property of Invisibility.
Inventor: COCHRANE FRANK
IPC: D06M11/57
Filed: 1917-12-04
Abstract: 129,712. Cochrane, F. Dec. 4, 1917. Proofing; emulsions for proofing. - In treating fabrics to dry them so as to make them appear invisible when viewed from a distance, and at the same time to waterproof them, the fabrics are treated with a substance which will render albumen or similar medium insoluble and will also react with a wax emulsion, promiscuous patches of pigment mixed with albumen or other substance which coagulates on heating are applied by hand or otherwise, the colours are fixed by ageing or heating, and the fabrics are treated with a wax emulsion and dried. Suitable substances for the first treatment are solutions of tannic acid or of an aluminium salt such as the sulphacetate or a mixture. A suitable wax emulsion consists of paraffin wax, carnauba wax, japan wax, and stearine mixed with a solution of ammonia, caustic soda, soda crystals, or other alkali. The fabric while wet with the colour may be folded to transfer colour to adjacent surfaces.
Patent GB-708079-A (GB)
Title: Improvements in or relating to endless track vehicles
IPC: B62D11/08
Filed: 1951-07-30
Abstract: 708,079. Motor vehicles, steering and driving gear. RODMAN, A. S. July 15, 1952, No. 17946/51. Classes 79(2) and 79(5) [Also in Group XXXIV] The invention relates to an endless track vehicle of the kind in which each track is connected to the prime mover through a respective disconnectable coupling and has a respective brake, the couplings being controlled by a cam on a rotatable steering column which also operates the brakes. According to the invention, two separate levers are operated separately, and in one direction only, by the cam, to uncouple the coupling, and an arm is mounted on the steering column for applying the brakes separately. A drive shaft 4 extends from an engine and gear box (not shown) at the rear of the vehicle, and is in driving engagement through gears 5, 6, 7, with shafts 8, 9. Clutches 12, 13 are interposed between the shafts 8, 9 and track driving pinions 2, 1 which are rigid with brake drums 10, 11. Each clutch is axially movable out of engagement by the action of a cam 27 rigid with the steering column 24, rockers 31, cables or rods 39, links 41, and pins 47. One end of the band of each brake drum 10, 11 is connected by cranks 21 on shafts 23 and link 51, to a respective arm 49 freely rotatable on the column 24. An arm 59 rigid with the column 24 has a pin 60 which is adapted to pick up one of the two arms 49 when the column is rotated sufficiently in the corresponding direction. In operation, on rotating the steering column 24 from a central position, the corresponding clutch is disengaged. On further movement of the column in the same direction, the roller of the corresponding rocker 31 engages a part 30 of the cam 27 having a constant radius. The pin 60 then picks up the corresponding arm 49 to apply the brake on the declutched pinion with progressively increasing intensity. Both brakes may be applied simultaneously by the rotation of a shaft 73 which is linked to the arms 21 by respective links 69. Each link 69 is slotted at 67 to permit movement of the arms 21 under action of the control column 25.
Patent GB-266982-A (GB)
Title: Improvements in or relating to dredging apparatus
IPC: E02F3/08
Filed: 1926-07-17
Abstract: 266,982. Naamlooze Vennootschap Werf Conrad. June 30, 1926, [Convention date]. Endless-chain machines - In a dredger, the bucket-chain is driven bv two or more independent driving aggregates, acting on the chain at a part having a radius of curvature greater than that of the bight passing over the top roller or tumbler. As shown, three independent motors 13 are mounted on brackets 20 at the sides of the bracket ladder 12 and, through suitable gearing drive pinions 18 engaging rack teeth 19 formed in the bracket backs, and in the connecting links, if any. The flanks of the rack teeth are approximately at right angles to the pitch line and, to allow for wear of the connecting pins 9, the distance between engaging faces 22, 23, of rack teeth at the ends of adjacent buckets, or buckets and links, is initially made smaller than the normal pitch; the driving aggregates are so spaced that the gears 18 do not simultaneously engage teeth at the ends of the buckets and, further, thev drive the shafts of the gears 18 through toothed rims 17, Fig. 5, acting through springs 26 on fly wheels 27. A roller 10 may replace the usual tumbler and may be mounted on the ladder, as shown, or on the supporting structure. The outer run of the bucket chain may be guided in a curved path.
Patent GB-441532-A (GB)
Title: Improvements relating to the manufacture of beryllium alloys
IPC: C25C3/00
Filed: 1935-06-22
Abstract: Copper alloys containing 2-6 per cent of beryllium are prepared by an electrolytic process.
Patent GB-772482-A (GB)
Title: Improvements in or relating to the manufacture of bricks
IPC: C04B33/02
Filed: 1953-06-29
Abstract: 772,482. Making bricks. EASTWOODS, Ltd., and STUBBS, R. J. May 26, 1954 [June 29, 1953], No. 18006/53.- Class 87(1) Wet mud bricks (stock bricks), are prepared from a starting material containing 25 to 30 per cent of water by weight of the dried bricks, the material having had added thereto 0.1 to 0.25 per cent of calcium chloride by weight. The formed bricks may be dried before firing by passing them through an oven through which hot air flows, preferably at such a rate that the moisture saturation of the air does not reach more than 45 per cent. The bricks may be dried in this manner to about 10 per cent moisture content before firing. The calcium chloride is preferably added to the clay starting material in solution in the water that is mixed with the clay..
Patent GB-516013-A (GB)
Title: Improvements in or relating to two-motored aircraft, having tractor and pusher airscrews
IPC: B64C11/00
Filed: 1938-06-17
Abstract: 516,013. Aeroplanes. DORNIER - WERKE GES., and DORNIER, C. June 17, 1938, No. 18076. Convention date, July 24, 1937. [Class 4] , An aircraft is propelled by motors 20, 21 mounted within the fuselage 10 and driving, by means of shafts 22, 24, tractor and pusher airscrews 23, 18, the latter being located behind the tail unit. The motors are arranged so that the crew, navigating instruments &c. are accommodated between them. Lateral control is effected by a pair of tail fins 14, 16 and rudders 15, 17. The'fin 16 acts as a shroud for the means supporting the tail wheel 19 from the fuselage. The airscrews may be rotated by means of blowers driven by the motors. Where more than one fuselage is used a driving plant similar to that described is provided in each fuselage.
Patent GB-293200-A (GB)
Title: Improvements in and relating to loud speakers and the like instruments
IPC: H04R7/18
Filed: 1927-07-07
Abstract: 293,200. Mackintosh, E. V., and French, C., (trading as Celestion Radio Co.). July 7, 1927. Diaphragms; loud-speakers.-The diaphragm of an acoustic device is rigidly attached at its periphery to a relatively massive support which is itself movably mounted and balanced. In the construction shown, the conical diaphragm 1 has its edge rigidly attached to a cardboard &c. cylinder 2 which is loaded with balanced weights 3 pivotally mounted in brackets 4 on the base 5 of the cabinet 9. The weights or bars 3 are secured to the cylinder by screws 7, the cylinder being slotted as shown at 6. The electromagnetic actuating means 8 is mounted on the base 5. Instead of employing the weights 3, the cylinder itself may be massive and constitute a floating load and be counterbalanced in any convenient manner. The total mass of the supporting means is such as to lower the natural free period of vibration of the diaphragm and its loaded mounting to a frequency at which it ceases to be objectionable.
Patent GB-848288-A (GB)
Title: New steroid compounds
Inventor: CAMERINO BRUNO
IPC: C07J1/00
Filed: 1958-06-06
Abstract: The invention comprises steroids of the formula: <FORM:0848288/IV(b)/1> (wherein R and R1 are hydrogen atoms or carboxylic acyl groups containing not more than 9 carbon atoms) and the preparation thereof by selective dehydration of 4 : 5-dihydroxy-17a -methyl-testosterone in alkaline solution, preferably by treatment with KOH in methanol and water, to give 4-hydroxy-17a -methyltestosterone, which may then be esterified in the 4-position by reaction with a carboxylic acid chloride or anhydride or esterified in the 4-and 17-positions by reaction with these acylating agents preferably in the presence of pyridinium chloride, the diester then being selectively hydrolysed in alkaline medium, if desired, to give the 17-monoester.  The above processes may be combined with the preparation of the 4 : 5-dihydroxy-17a -methyltestosterone by reaction of the corresponding 4 : 5-epoxide with dilute sulphuric acid in methanol at room temperature.  The 4 : 5 dihydroxy compound may also be obtained from 17a -methyl-testosterone, e.g. by treatment with H2O2 and osmium tetroxide in trimethylcarbinol. Suitable esterifying acids include acetic, succinic, propionic and cyclopentylpropionic acids.  Examples are given.ALSO:A pharmaceutical composition comprises a steroid of the formula:  <FORM:0848288/VI/1> (wherein R and R1 are hydrogen atoms or carboxylic acyl groups containing not more than 9 carbon atoms) and a carrier therefor.
Patent GB-1359922-A (GB)
Title: Semiconductor target image pickup tube for colour camera of single valve type
IPC: H01L21/223
Filed: 1972-04-19
Abstract: 1359922 Image pick-up tubes; semi-conductor targets HITACHI Ltd 19 April 1972 [21 April 1971] 18133/72 Headings H1D and H1K A multi-diode target for a colour television pick-up tube is provided on its light-receiving side with a pattern of dead layers which annihilate holes produced in the substrate by incident light and thereby modify the wavelength range to which the underlying portions of the target are sensitive. In Fig. 1a, the light receiving surface of a 10 ohm N-type silicon substrate 11 is provided with N<SP>+</SP> areas 15, e.g. in the form of stripes, by diffusing an impurity such as phosphorus to a concentration of 10<SP>19</SP>/cm.<SP>3</SP> Heat treatment of areas 16 causes out-diffusion and reduces the concentration to 10<SP>18</SP>/cm.<SP>3</SP> with a maximum concentration 0.1 to 0.5 microns below the surface. The untreated region a has a dead layer 1 to 1.6 microns deep, as a result of which the holes produced by short and medium wavelength light are returned to the surface 11<SP>1</SP> and are unable to reach the P-type areas 12; region b is sensitive to long and medium wavelengths, whilst region c is sensitive to the whole visible range. Thus a single tube may provide colour signals, the signals from region a providing the red signal, the difference between signals from regions b and a providing the green signal, and the difference between signal from regions c and b providing the blue signal. The scanned side of the target comprises P-type regions 12, an oxide layer 13 covering exposed portions of the substrate, and a resistive layer 14 covering the whole surface. In a modification, Fig. 1b (not shown), the N<SP>+</SP> area 15 is covered with silicon dioxide to improve the sensitivity to short wavelengths, and in another modification, Fig. 1c (not shown), the whole light receiving surface is covered with an anti-reflection coating. A P-type impurity such as boron may be diffused into the regions a and b to form a P-N junction less than 0.5 micron deep therein to improve the wavelength discrimination. In another arrangement, Fig. 2b, transparent conductive electrodes 26 and 28 of tin oxide and oxide layers 25 are arranged as shown to form the regions b and c; in operation potentials of 0-2 volts and 4-5 volts are applied to electrodes 26 and 28 respectively. In modifications an N<SP>+</SP> layer is provided in the substrate either in regions b and c (Fig. 3a, not shown), or over the whole substrate (Fig. 3b, not shown).
Patent GB-1004364-A (GB)
Title: Container and closure therefor
IPC: B65D47/12
Filed: 1963-05-08
Abstract: 1,004,364. Vacuum closures. MACBICK CO. May 8, 1963 [Feb. 4, 1963], No. 18171/63. Heading B8T. A rubber bushing 6 embraces a container neck and rim, and a rigid cap 10, in the sterilizing position, Fig. 2, engages a pouring lip 32 of the bushing. During sterilization, steam escapes from the container between the cap and lip, providing a one-way flap valve, and to atmosphere via circumferentially spaced channels in the inner wall of the cap and spaced from a circumferential rib 42 of the bushing. Circumferentially spaced lugs of the cap engage below the ribs during sterilization, and when the container cools the cap is drawn downwardly on to the bushing, Fig. 3, to provide a seal at the bushing lip and also between the bushing ribs 42 and a sealing surface 90 in the cap. The cap has a flange 80 to facilitate its manual removal, and the container neck may have an additional bead 20 embraced by the bushing.
Patent GB-515809-A (GB)
Title: Improvements in and relating to grabs
IPC: B66C3/06
Filed: 1938-06-20
Abstract: 515,809. Grabs. GODFREY, J. M., [Representative of Godfrey, L.]. June 20, 1938, No. 18239. [Class 78 (iv)] The buckets of a grab are suspended by links 4 having pivot pins 6 engaging slots 22 in the head 3. The buckets are also pivoted at' 8 to bell-crank levers 9 interpivoted at 10 and pivoted at 11 to cross beams 12. Arms 13 rigid with the cross beams are pivoted at 14 to a cross-head 15 in which the sheave 28 to which the hauling rope 27 is secured is journallea. The ends of the cross-head form guides for tne lower members 16 of telescopic devices arranged on each side of the grab. The lower members are provided with links 18 pivoted thereto coaxially with the pivots 10 and to the cross beams 12 coaxially with the pivots 11. The lower members slide on stationary members 20 secured to the head 3 and links 24 are pivoted at 25 to the members 20 and at 23 to the spreader links 4.. Chains 31 wind off and on spools coaxial with the sheave 28 as the buckets open and close. Stops limit the relative movements of the members 15, 16. 20, and chains 26 overcome any tendency of the buckets to spread during the closing of the grab.
Patent GB-386882-A (GB)
Title: Improvements relating to electro-magnetic devices for the interconversion of mechanical and electrical impulses, such for example as gramophone pick-ups
IPC: H04R11/08
Filed: 1932-06-28
Abstract: 386,882. Gramophone pick-ups. COLLARO, C., 111, Sutherland Avenue, Maida Vale, and COLLARO, Ltd., Culmore Road, Peckham, both in London. June 28, 1932, No. 18275. [Class 40 (iv).] Relates to an electromagnetic device for the interconversion of mechanical and electrical impulses, more particularly for use as a gramop hone pick-up, having an armature mounted to move relatively to at least one magnetic pole face and consists in forming the armature with a reed portion and a base piece, the latter being of wedge or truncated wedge shape in cross section so as to present a flat base which bears against a flat abutment surface through the medium of resilient material and two sloping sides which bear against two sloping faces on the polepiece assembly also through the medium of resilient material. As shown, the pick-up comprises a pair of polepieces 1, 2 bridged at the top and bottom by non-magnetic plates 3, 4 and an armature consisting of a reed portion 6 having sloping faces 7 lying between sloping faces 8 on the polepieces and a truncated wedge-shaped base piece 9 arranged at right angles to the part 6. The two arms of this base piece are surrounded by rubber sleeves 10 and a needle 11 is secured in a hole in the base piece by a screw 12. The base piece rests on a non-magnetic plate. 13 through the medium of the sleeves 10, the sloping faces of which bear against sloping faces 14, 15 on the polepieces. Screws 16 passing through plate 4 and bearing against plate 13 enable the armature to be moved bodily in a straight line between the pole faces 8 and the faces 14, 15 so as to adjust the air gaps between the faces 7 on the armature and the pole faces 8 equally. The part 6 of the armature passes through a coil 20 and projects at its top into a damping strip 17 of very soft spongy rubber held between the tops of the polepieces and a non-magnetic plate 18. In operation, the armature does not oscillate'about a central pivotal axis but rocks about the two edges 21, 22, Fig. 3.
Patent GB-284931-A (GB)
Title: Improvements in fastenings for box-joints, carpenters'-joints or the like
Filed: 1927-07-11
Abstract: 284,931. Glardon, E. C. July 11, 1927. Spiked plates.-In a joint for boxes &c. of the kind in which the boards A, B are secured by a spiked plate a and a flat barbed nail C is driven through holes d, e in the spikes, the edges of the holes are reinforced such as by flanges d<1>, e<1>, Fig. 4. or eyelets to prevent damage by the nail. In the form shown in Fig. 9 the holes are formed by cutting cross-slits and bending back the triangular portions d<3>.
Patent GB-757837-A (GB)
Title: Improvements in a clutch
IPC: F16D27/08
Filed: 1954-06-23
Abstract: 757,837. Friction clutches. WARNER ELECTRIC BRAKE & CLUTCH CO. June 23, 1954 [July 29, 1953], No. 18411/54. Class 80(2) Inner and outer concentric sleeves 14, 16 of a main multidisc clutch 10 between a driving gear 19 and a driven shaft 15 rotate together when a stationary magnet coil 47 is energized to engage an auxiliary friction clutch 11 between the driving outer sleeve 16 and a cam ring 31, rotatable on the driven shaft, connected to the inner sleeve through caged balls 28 in inclined grooves in the cam ring and in an axially slidable end plate 20b of the main clutch. Rotation of the cam ring 31 causes the discs of the main clutch 10 to be pressed together axially against the force of disengaging springs 41. The auxiliary friction clutch 11 comprises a driving armature 46 splined on the end of the outer sleeve 16, and driven rings 43 connected by a ring of non-magnetic material 44, such as copper, to form two pole pieces which are journalled on the sleeve 14. Many of the parts can be formed by stamping.
Patent GB-1460496-A (GB)
Title: Apparatus for mixing and/or distributing flowable materials such as liquids in particular turbid liquids
IPC: B01F15/02
Filed: 1974-04-26
Abstract: 1460496 Mixing fluent material KLOCKNER-HUMBOLDT-DEUTZ AG 26 April 1974 [27 April 1973] 18429/74 Heading B1C In apparatus for mixing and distributing liquids, slurries and fluidised solids the material enters through tangential inlet 2 an inlet chamber 1 the bottom of which is formed by a distribution plate 6 having a plurality of radial slots 7 communicating with outlet chambers 4. There may be an inverted frustoconical baffle 10 discharging air to a conical deflector 8. The cross-section of the slots 7 may be varied by means of a baffle plate (not depicted) and there may be valves whereby selected outlet chambers 4 may be shut off.
Patent GB-184459-A (GB)
Abstract: 184,459. Clement, A. W. Aug. 10, 1921, [Convention date]. Exchange systems.-In an exchange employing a ringing- generator of the tapped-armature dynamotor type which is shut down when not in use and started up again when a call is received, and in which ringing- current is supplied to a called subscriber over a step-up transformer, arrangements are made for closing the starting circuit of the generator shortly before the primary circuit of the transformer is closed, in order to ensure the starting of the generator under all conditions. In the system shown, the generator 1 comprises an armature 2 and commutator 3 to which direct current is supplied to drive the machine, current of ringing-frequency being taken from the slip rings 4 and supplied to the called subscriber 7 over a transformer 5, 6. If the driving and output circuits are closed simultaneously, in some positions of the commutator brushes the armature 2 will be effectively short-circuited by the primary winding 5 and the machine may not start. In order to prevent this, the circuits are placed under the control of relays 13, 14 the former of which always energizes a short time before the latter. The invention is illustrated in connection with both automatic and manual switching arrangements. As applied to automatic arrangements, relay 13 is energized by a relay 18 at some preliminary stage of the switching operation, for example, after the dialling of the tens digit, while relay 14 is energized by a relay 19 when the connection is completed and is de-energized when the called subscriber answers. As applied to manual systems, a relay 22 energized when a plug is inserted in the jack of the wanted line completes a circuit for relay 13 which starts up the generator. Relay 22 also energizes a slow relay 25 which completes a circuit for a second slow relay 24. Relay 24 breaks the circuit of relay 25, and after an interval relay 25 falls back to energize a relay 23 which locks up, and when, after a further interval, relay 24 falls back, a circuit is completed for relay 14. When the called subscriber replies, supervisory relay 20 breaks the circuits of relays 22, 23, and 14 to stop the generator. A relay 11 in circuit with an interrupter 12 or a ringing- key controls the application of the ringing current to the called line 7.
Patent GB-1091362-A (GB)
Title: Improvements in or relating to electric control apparatus units and mounting arrangements therefor
Inventor: HIGHAM KEITH
IPC: H05K7/14
Filed: 1964-05-04
Abstract: 1,091,362. Indicators for switches; mounting switches. AUTOMATIC TELEPHONE & ELECTRIC CO. April 29, 1965 [May 4, 1964], No. 18495/64. Heading H2B. An electrical control apparatus unit, e.g. incorporating switching keys 11 with knobs 10, is slidably mounted on to a mounting plate 30 by four guide pillars 36, 37, 38, 39, accommodating lamp-holders 40 with lamps 41 for illuminating an overlay panel 19, e.g. of coloured " Perspex " (Registered Trade Mark), which has fluorescent properties when so illuminated, the direct light from the lamps 41 being obscured from a viewer by opaque corners 22 on panel 19. Panel 19 carries captions in reverse on its rear face to designate the functions of the keys 11. Handles 16, 17 have portions 18, slidable on posts 15 of the apparatus unit, which enable the unit to be manually withdrawn from its mounting position. Each unit comprises front and back plates 12, 13, spaced apart by four pillars 14 which are shaped to co-operate with the guide pillars 36 . . . 39. A plug unit 21 in the apparatus unit has an associated socket 23 with cable connections 47 to the apparatus controlled. The apparatus unit is retained mounted by clips 45, 46, engaging ribs 24, 25, on the back plate 13. Several apparatus units are mountable on the mounting plate 30.
Patent GB-595071-A (GB)
Title: Improvements in or relating to the straightening of wire strip
IPC: B21F1/02
Filed: 1944-09-28
Abstract: 595,071. Straightening. WARBURTON, J. W. Sept. 28,1944, No. 18611. [Class 83 (iv)] Strip, particularly strip for the manufacture of loom reeds and clock springs, is straightened by passage between staggered rollers whilst the side faces are constrained by guides constituted by members 1, 2 having alined holes 4, 5 that contain the rollers, that may have ball or roller bearings 8, and are mounted on carriers 6 adjustably clamped at 7. Lubricant is supplied to the holes 4, which are plugged at 10, by a channel 11 and passes away through holes 13 in the carriers.