baber/WOPTO huggingface dataset:
Patent GB-693718-A (GB)
Title: Firing device for low calorific value fuels of small particle size
IPC: F23C99/00
Filed: 1951-01-30
Abstract: 693,718. Refuse-consuming and pulverulent fuel furnaces. VEREINIGTE KESSELWERKE AKT.- GES. Jan. 30, 1951 [Oct. 21, 1950], No. 2336/51. Class 51(i) A fire-box primarily for the combustion of fuels of low calorific value and small particle size having high water and ash content e.g. peat, comprises a plurality of vertical combustion chambers interconnected in side-by-side relationship and adapted to be traversed seriatim by the fuel and air mixture, the interconnection of said chambers being such that the mixture is deflected through approximately 180 degrees on passing from one chamber to the next and wherein a.common grate provided for the completion of the combustion of the heavier fuel particles deposited thereon is arranged at the lower ends of those adjacent chambers which are interconnected at their lower ends. The fire-box shown applied to a boiler in Fig. 1 comprises two combustion chambers 5, 6, air for combustion being supplied via boxes 3 and the space 8 beneath the grate 4. The fuel is fed through pipe 1 from a pulverizer (not shown) passing through a screen and dropping from above into the chamber 5. Additional fuel may be supplied on to the grate through the door 19. Fig. 2 shows a fire-box comprising three combustion chambers the third of which, 16, may be provided with heating surfaces. Cooling tubes such as 9, 10, 11, 12, may line the combustion chambers.
Patent GB-764244-A (GB)
Title: Improvements in or relating to printing telegraph transmitters
Inventor: MASON FREDERICK PERCIVAL
IPC: F26B13/14
Filed: 1955-01-26
Abstract: 764,244. Printing-telegraph transmitters. CREED & CO., Ltd. Jan. 26, 1955, No. 2350/55. Class 40 (3). A telegraph transmitter is driven by its motor through a clutch which is engaged under control of contacts operated centrifugally by the motor when it attains a predetermined operating speed. Contacts 1 of operated switch MMS close a circuit for the motor M which opens contacts 2 when it attains its working speed. When contacts 2 open capacitor C charges and current is applied via contacts 1a and rectifier bridge 4, 5, 6, 7 to the winding 8 of a relay R/4 which closes at contact r3 an operating circuit through resistor 3 for the motor M, and at contact r2 prepares a circuit for the clutchrelease magnet CRM which is energized when contacts 12 of the switch MLS are closed and allows the clutch to connect the transmitter to the motor. Contact r2 also closes a holding R circuit for relay - through its winding 9. 4 Contacts r4 short-circuit the contacts of an auxiliary transmitter which has alternative use of the transmission channel, and closure of contacts 12a by accidental operation of the switch MLS does not short-circuit the transmission circuit of the auxiliary transmitter during its operation. When transmission is to be terminated, switches MMS and MLS are opened, but rectifier 11 makes relay R/4 slow to release so that the driving circuit for the motor M is temporarily maintained over contacts r1, R r3. When relay - releases, magnet CRM is 4 de-energized immediately since rectifier 10 neutralizes the retarding action of the rectifier 11 in respect of the magnet, and the transmitter is brought to rest. The transmitter is operated by a perforated tape or keyboard. Contacts 13 which are opened when the tape is taut release magnet CRM to stop the transmitter.
Patent GB-1275031-A (GB)
Title: Magnetic recording mediums
IPC: C09D5/23
Filed: 1971-01-18
Abstract: 1275031 Magnetic recording medium AMPEX CORP 18 Jan 1971 [9 Feb 1970] 2370/71 Heading H1H In a magnetic recording medium comprising a backing bearing an adherent coating of magnetic pigment dispersed in a polymeric binder, the magnetic coating contains carbon black, and 3-10% by volume of the total non-volatile portion of the coating composition, of a dispersant of formula where R and R 1  are C 1-3  alkyl, R 1  is C 1-4  alkyl, A is an anion, and R 2  is a polypropyleneoxy radical containing at least 18 C atoms. The pigment may be gamma-Fe 2 O 3 , and the dispersant is preferably a diethyl methyl polypropyleneoxy quaternary ammonium chloride containing 6-30 oxypropylene groups. The binder may comprise 25-75% phenoxy resin and 75-25% polyurethane and may also contain melamine-formaldehyde and/or ureaformaldehyde resins. The magnetic coatings are usually made by adding a solution of polymeric binder incrementally to a dispersion of carbon black and iron oxide, and ball-milling the mixture for 5-50 hours or more. The non-volatile part of the composition may contain 60-80% magnetic pigment. In examples, tapes of cellulose acetate, polyester and polypropylene, after application of the magnetic coating, are dried in a 3-zone oven at 175‹ F., 225‹ F. and 225‹ F.
Patent GB-546660-A (GB)
Title: Improvements in and relating to hydraulic operating mechanism for gun turrets and other rotatable structures
IPC: F41A27/26
Filed: 1941-02-24
Abstract: 546,660. Hydraulic control mechanism; ordnance mountings. COOK, C. W. Feb. 24, 1941, No. 2443. [Class 69 (ii)] [Also in Group XXI] For the remote control of gun turrets or other rotatable structures the controlling element comprises a rotatable member a provided with a grooved cam b, or an equivalent cam or profiled member, which on rotation produces relative movement of the piston and cylinder d of a telemotor device, the cylinder d being connected by pipes f, g to the cylinder s of a similar double acting hydraulic motor, which causes a rotatable member h formed with a cam groove e to reproduce the motions of the control member a. The piston of the motor s permits the member h to be rotated under the power of a hydraulic or other motor m which is controlled by the motion o.f the handle o of the controlling member a. The controlled member h may operate a gun turret directly or by screw-mechanism, or may control servo-mechanism which may be hydraulic or electric so that the turret is rotated by hydraulic or electric motors under control of an arm p attached to the member h. A pair of controls may be used in combination to control training and elevating motions of a gun.
Patent GB-370082-A (GB)
Title: Improvements relating to the packing of sliver into cans
IPC: B65H54/78
Filed: 1931-01-26
Abstract: 370,082. Pressing sliver into reciprocating cans. MACKIE & SONS, Ltd., J., Albert Foundry, Belfast.-(Paisley, P. ; Vier Jahr Zeiten Hotel, Hamburg, Germany.) Jan. 26, 1931, No. 2461. [Class 120 (iii).] Sliver delivered from textile machines into reciprocating cans is packed by a device consisting of two plates disposed above the mouth of the can and swung alternately up and down in phase with the reciprocations of the can so that the sliver is pressed therein without interrupting the feed. Sliver from a carding machine passes through rollers 1 and an oscillating funnel 4 which lays it in zig-zag formation in a can 3 on a platform reciprocated by a crank 6. To bars 21 on the top of an angleiron frame 8 fixed to the platform and surrounding the can are hinged steel-sectioned arms carrying plates 11 to the outer ends of which are hinged rods 18, and the other ends of these rods are hinged to fixed points on the machine ; the arrangement being such that as the can is reciprocated the plates 11 are alternately lowered to a horizontal position to pack the sliver in the can and then raised to a vertical position. the movements of the two plates being 180‹ out of phase. The plates 11 are each as wide as the can and half as long, although they may be longer. The lower part of the frame 8 may be omitted and the bars 21 fixed in slideways and reciprocated in phase with the platform by a separate crank ; or the rods 18 could be dispensed with and each pair of arms carrying the plates 11 mounted on a shaft provided with a pinion at one end engaging with a rack on a fixed part of the machine. The invention is applicable where the platform carries more than one can and filled cans are automatically replaced by empty ones as in Specifications 311,556, 333,396, 334,413, [all in Class 120 (iii), Yarns &c.], and 370,081. Specification 290,791, [Class 120 (iii), Yarns &c.], also is referred to.
Patent GB-304735-A (GB)
Title: Improvements in settling tanks
IPC: B01D21/00
Filed: 1929-01-24
Abstract: 304,735. Pr³ss, M. Jan. 25, 1928, [Convention date]. Gravity - separation apparatus; plant.-A settling-tank in which settled sludge is moved towards the centre by rotating scrapers is provided at the centre with a separate chamber which serves as a sludgedecomposition chamber or for housing auxiliary parts of the plant. In the arrangement shown in Fig. 2, the liquid supply pipe 1 passes underneath the settling-tank 9 and rises in the central chamber 3. 'Branch pipes 4 connect the pipe 1 with a circular distributing trough 5. Some separation takes place in an inner compartment formed by a partition 7, light matter rising and being pushed up an inclined flange 11 into a trough 12 and a vessel 13, which serves as an oil separator. Heavier matter settles into a trough 10, which also receives sludge swept to the centre by scrapers 21. The matter in the trough 10 is removed through pipes 16<1> by a pump 16 in the central chamber 3. In the arrangement shown in Fig. 3, a sludge-decomposition chamber 17, situated around and beneath the chamber 3, communicates with the tank 9 through a, circular opening 19. A pump 16 removes the sludge through a pipe 31. In the modification shown in Fig. 4, sludge is pumped from collecting pockets 22 into a central chamber 3 where it is agitated periodically by mixing pumps 23. The inlet pipe 1 is provided with valves 6 arranged in inspection pits at the periphery and toward the centre of the tank. The scrapers 21 in each of the modifications are supended individually or in groups from a carrier 28 by means of hinged arms 29, Fig. 5, so that they are automatically accommodated to unevenness of the floor. The carrier 28 may move on rails placed on the periphery of the settling- tank and on the central chamber 3. Or the carrier 28 may be supported on floats 24, Figs. 3 and 4, and moved round by means of a driven rope 25 to which it is clamped or by means of a stationary rope 25 engaged by an electrically-driven winch on the carrier.
Patent GB-624575-A (GB)
Title: Mixing device and method
IPC: B01F33/40
Filed: 1947-01-28
Abstract: 624,575. Mixing by jets of liquids. AUTOMATIC CANTEEN CO. OF AMERICA. Jan. 28, 1947, No. 2615. Convention date, Feb. 2, 1946. [Class 86] A device for mixing liquids with comminuted solids comprises a nozzle having outlet holes in two different planes and directed in different directions, through which liquid is forced into the body of the solid. The device is rotated to facilitate mixing. The device comprises a cylindrical body 2, having an inlet 34 near the bottom for the liquid under pressure, in which slides a nozzle 4 having inlet holes 36 near the top, so that when the nozzle is in the telescoped position shown in Fig. 1 no liquid flows through the nozzle, but when the device is extended so that the nozzle enters the mixing vessel 48, the inlets 34, 36 are in alignment and the liquid flows through the nozzle into the solid material. A separate extension 10 of the body 2 provides a slideway for a rod 14 which is integral with the nozzle 4 and is keyed through slots in the extension 10 to a collar 18 sliding on the extension. Vertical movement of the collar 18 thus reciprocates the nozzle 4, and this may be effected manually or mechanically. A pulley 30 for rotating the device is secured to the top of the extension 10. The lower end of the nozzle 4 is screwed to receive a removable tip 38, Fig. 5, having radially extending holes 44 perpendicular to the axis of rotation of tthe device and at another level radial holes 46 directed angularly towards the end of the tip. In order to keep the tip clean, the nozzle 4 is not a tight fit in the body 2 and the liquid under pressure leaks out both inside and outside the nozzle and washes off any remaining solid material. It is stated that the device may be kept stationary and the container rotated, or both may be rotated.
Patent GB-1148161-A (GB)
Title: Improvements in or relating to drum brakes
Inventor: HOLLINS PETER GEORGE
IPC: F16D51/20
Filed: 1966-01-20
Abstract: 1,148,161. Internal shoe drum brakes. GIRLING Ltd. 3 Jan., 1967 [20 Jan., 1966], No. 2652/66. Heading F2E. One shoe 1 of an internal shoe drum brake of the leading/trailing shoe type, having shoes 1, 2 slidably engaging a fixed abutment 6, has an aperture 8 in the web into which is inserted a plate 11 of wear-resistant material, e.g. of high carbon steel, cyanide case hardened to a depth of 0À005 inch, upon which bears a cam surface formed on a handbrake lever 9. The plate is of H formation so that it can be inserted into the aperture diagonally and retained in place by its upper and lower projections. In a modification, Fig. 6, the aperture 28 includes a notch 19 and a grommet-like member 30 of plastic material is inserted in a circular aperture adjacent the aperture 28 after insertion of the plate 21 to prevent withdrawal of the latter, one of the projections 23 on the plate being longer than the others for this purpose. Alternatively, a spring retainer may be used. A single-ended hydraulic piston and cylinder unit 3 having limited circumferential movement is used as the main applying means and acts directly between the shoe ends.
Patent GB-991340-A (GB)
Title: Improvements in or relating to disc brakes
IPC: F16D55/26
Filed: 1963-01-22
Abstract: 991,340. Disc brakes. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALFRED TEVES MASCHINEN UND ARMATURENFABRIK KOMM-GES]. Jan. 22, 1963 [Feb. 8, 1962], No. 2698/63. Heading F2E. In a spot-type disc brake the brake pad backing plates 11 are provided with a number of grooves 13 disposed in rows in apertures in the backing plates which are adapted to engage complementary grooves in a guide member 8 secured to the calliper housing 1. The apertures in the backing plates and the guide members may be formed as straight or curved toothed racks.
Patent GB-1142263-A (GB)
Title: Shock absorbers
IPC: F16F7/10
Filed: 1967-01-18
Abstract: 1,142,263. Shock-absorbers. LITTON INDUSTRIES, Inc. 18 Jan., 1967 [19 Jan., 1966], No. 2759/67. Heading F2S. A vibration and shock-absorbing assembly, e.g. for supporting a mass 12 on a support 10, comprises a fluid-tight housing 16, a driving element 20 which extends into the housing in a fluid-tight manner through a resilient element 22 to which the driving element 20 is secured, the resilient element 22 being sealed in an opening in the housing, a substantially rigid damping element 36 within the housing 16 and loosely coupled, with a predetermined amount of play, to the driving element, and damping fluid 18 completely filling the housing and in which the damping element 36 is entirely free floating except for its coupling to the driving element. A web 34 of the element 36 has an aperture 26 so that it has limited movement between a collar 24 on, and a washer 28 screwed to, the rod 20, and the housing has an elastic pressure relief membrane 40. In use, small amplitude vibrations are taken up by the resilient element 22, as the amplitudes increase the motion of the element 22 is damped by the fluid 18 and, with even greater amplitudes, the web 34 engages the collar 24 and the washer 28 so that the element 36 enters into the damping action. In a modification, Fig. 4, not shown, the resilient element is in the form of a diaphragm (122) so that a pressure relief member 40 is not needed, the housing being provided with a separate lid (156). A helical spring may be interposed, in parallel with the diaphragm (122) between the support 10 and the damper housing.
Patent GB-870140-A (GB)
Title: Low friction diaphragm
IPC: G03B7/085
Filed: 1957-09-16
Abstract: 870,140. Photographic diaphragms. BELL & HOWELL CO. Sept. 16, 1957 (Aug. 13, 1957] No. 2875/60. Divided out of 870,139. Class 98(1) In a photographic camera which comprises a pair of diaphragm members mounted for anti-friction oscillation on spaced axes normal to the plane of an exposure aperture and spaced laterally thereof, the members lie in generally parallel planes and have portions overlapping each other and said aperture, a positive gear drive connecting said diaphragm members in a predetermined angular relation and causing them to oscillate at approximately the same angular velocity, the diaphragm members having arcuate openings tapering in width and intersecting centrally of the exposure aperture with portions of substantially corresponding width to form a variable diaphragm opening maintained substantially centred relative to the exposure aperture, the gear drive including gear section of the same gear radius rigid with the diaphragm members, and the lines drawn from the axes through the centre of the exposure aperture being at right angles. As shown, diaphragm discs 55 rotate about spindles 56 mounted in low friction conical socket bearings, have tapering arcuate openings 61 intersecting at 62 in front of exposure aperture 12 to form said variable aperture, and have apertures 102 to counterbalance the effect of openings 61. The discs 55 are in toothed connection with a gear member 59 which is alternatively driven by a photoelectrically actuated mechanism in a cinÚ camera as described in Specification 870,139; or by a manual control as described in Specification 870,141. Specification 870,142 also is referred to.
Patent GB-389957-A (GB)
Title: Valve device
IPC: A61M3/02
Filed: 1932-02-01
Abstract: 389,957. Valves. REDSTONE, S., 10, India Street, Glasgow. Feb. 1, 1932, No. 2909. [Class 135.] Valves actuated indirectly.-A valve device for use primarily in administering enemata and for vaginal hygiene comprises a valve casing in the form of two connected chambers 4, 1 and a loose valve element 9 independent of the casing, the valve seating at 8 in one chamber 1 whilst its stem 10 extends into the other chamber 4. The walls 5 of this chamber are resilient and engage the crossbar 11 of the valve stem to keep the valve closed and so that by application of longitudinal pressure to the casing the walls will be collapsed, concertina-like, and the valve opened.
Patent GB-397763-A (GB)
Title: Improvements in or relating to volume control systems suitable for use in radio receiving and like apparatus
IPC: H03G9/06
Filed: 1933-01-30
Abstract: 397,763. Wireless receiving- apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Barton, L. E. ; 228, Burrwood Avenue, Collingswood, and Holst, P. F. G. ; 301, Bank Avenue, Riverton, both in New Jersey, U.S.A.) Jan. 30, 1933, Nos. 2914 and 2915. Convention dates, Jan. 30, 1932 and Oct. 21, 1932. [Class 40 (v).] A predetermined and relatively-high degree of manual tone compensation is applied to the low-frequency stages of a wireless receiver, in combination with automatic volume control applied to the high-frequency stages, with the object of correcting the natural tendency of the ear to accentuate the middle frequencies as compared with the higher and lower notes, particularly at a low level of sound-output. The tone control element consists of a taperedresistance element 8, Fig. 1, having a double logarithmic response curve 40, as shown in Fig. 4, with one or more tone-compensating impedances z, Fig. 1, inserted in shunt towards the low-potential end 15 and a variable output tapping 9. The effective result is to give a response curve 11, Fig. 2, having a droop at the middle of the audio range, particularly when the tap 9 is set for a small output volume. For a high volume the response curve is a straight line, as shown at 10. The automatic volume control has a " delayed " action, so that static and similar back-ground noise is reduced. As shown in Fig. 5, the control grid 109 of the five-electrode rectifier valve 101 is automatically biased through a resistance 123, the cathode of the valve being connected to the positive side of the section 125 of a potentiometer resistance shunted across the H-T supply 115. The anode 111 of the valve carries a slightly - negative bias, so as to delay the onset of the A.V.C., and is connected back to the cathode through a tuned circuit 127 and resistances 129, 125. The main output from the valve is taken by the screen-grid 105, the C. W. component being fed back to the anode through a coupling-coil 149, where it is rectified and the resulting voltage across the resistances 129, 125 fed back to bias the grid of the preceding valve 131. The feed-back through the condenser 150 and coil 149, both in shunt to the output resistance 113, reduces the amount of static and similar noise at all settings. The rectified signal output from the valve 101 is supplied to the L.F. amplifier 151, at constant average volume, through a high-frequency filter 167, 170 to the tone-compensator 163. This is provided with two shunt circuits 175, 179 and 177, 181 (similar to the shunt Z in Fig. 1), and a variable output tapping 173 which may have a further series resistance 183 to provide an extra manual control. A condenser 171 acts as a "hum" filter, whilst a small condenser 184 serves to compensate extremely high note frequencies.
Patent GB-249084-A (GB)
Title: Improvements in lead-in wires for electric lamps and the like, and method of making the same
IPC: C03C27/04
Filed: 1926-02-01
Abstract: 249,084. Metal & Thermit Corporation, (Assignees of Schwartz, K. W.). March 10, 1925, [Convention date]. Leading-in wires consist of a core, having a coefficient of expansion less than that of glass, surrounded by a sheath of chromium. The sheath may be deposited electrolytically on a core of nickel-steel, which may first be coated with copper or brass. After the sheath is applied, the wire may be subjected to heat treatment to remove adsorbed gases, for example by immersion for some minutes in an oil bath at 600‹ F.
Patent GB-305213-A (GB)
Title: Improvements in or relating to feeding grippers of two revolution machines
IPC: B41F21/05
Filed: 1929-01-28
Abstract: 305,213. Maschinenfabrik Augsburg- N³rnberg Akt.-Ges. Feb. 3, 1928, [Convention date]. Sheet-carriers; gripper mechanism.-The oscillating movement of the feeding-grippers of a tworevolution printing-machine is effected by means of a roller engaged successively by two cams, the first a two-revolution cam and the second a one-revolution cam, preferably mounted respectively fast and loose on the shaft of the impression cylinder; the opening and closing movements of the grippers are effected by a cam oscillating about the spindle of the oscillating gripper arms. In the arrangement shown, the spindle p is oscillated by means of a spring-pressed lever o connected by a rod n and link m to a lever i pivoted at the end k and carrying a roller h co-operating with a cam a fast on the shaft of the impression cylinder and a second cam b loose on the shaft and rotated by gearing c, d, f, g at half the speed of the shaft. A cam t for opening and closing the grippers is oscillated about the spindle p into the positions y, y' through linkage, x, w from a one-revolution cam v attached to the gear d.
Patent GB-815172-A (GB)
Title: Improvements in sensitising dyes for photographic silver halide emulsions
IPC: C09B23/06
Filed: 1955-10-24
Abstract: Unsymmetrical carbocyanine dyes of the general formula <FORM:0815172/IV (c)/1> wherein R and R1 are substituted or unsubstituted alkyl or aralkyl groups, R2 and R3 are alkyl, aryl or hydroxyalkyl groups, V is halogen, n and n1 are 1 or 2 and X is an anion, are prepared by reacting a quaternary salt of a chlorosubstituted 2-methyl benzimidazole with a quaternary salt of a halogen-substituted benzimidazole carrying a 2-(o -anilinovinyl) group.  An example is given of the reaction of 1-ethyl-2-(o  - anilinovinyl) - 5 : 6 - dichlorobenzimidazole ethyl - p - toluene sulphonate with 1 - ethyl - 2 - methyl - 5 - chlorobenzimidazole ethyl iodide.  Specification 505,979, [Group XX], is referred to.