baber/WOPTO huggingface dataset:
Patent GB-1247637-A (GB)
Title: Door having a lock assembly
Inventor: LAWRENCE COLIN LESLIE
IPC: E05B65/26
Filed: 1970-04-16
Abstract: 1,247,637. Latches. FORD MOTOR CO. Ltd. 16 April, 1970, No. 18108/70. Heading E2A.  A door lock comprises a shaft 26 connected to a door latch or bolt mechanism 27, an inner door handle 32 operable to rotate the shaft to release the latch or bolt mechanism, an escutcheon, an outside door handle 16 rotatably mounted on the escutcheon, a bolt 21 transversely slidable in the outside door handle, a lock barrel 23 rotatable in the outside door handle and operable to move the bolt between an unlocking position in which  one end portion 36 of the bolt connects the outside door handle to the shaft to permit release of the latch or bolt mechanism by rotating the outside door handle and a locking position in which the end portion 36 is withdrawn to disconnect the outside door handle from the shaft. A spigot 17 on the outside handle 16 fits within an opening in the escutcheon 12 which has an annular projection 15 which engages in an opening in a backing plate 13, the backing plate and escutcheon being screwed together and to one side of the door. The spigot 17 has a recess 22  in which the bolt 21 is moved, by a key rotating an offset pin 24 on the lock barrel engaged in a transverse recess in the bolt, from the unlocked position in which the bolt end portion 36 engages in a recess 35 in a bush 28 secured by a pin 29 to one end portion of the shaft 26 to a locked position in which another end portion 38 engages in a recess 37 in the escutcheon the end portions 36 disengaging the recess 35. A pair of pins 30 in the bush engage in grooves in the spigot 7 and locate the bush 28 axially of the spigot. A spring washer 20 and circlip 18 snap in a groove 19 of the spigot to rotatably retain the handle to the escutcheon. The inner handle 32 is secured by a screw 33 to the other end of the shaft 26 and the handle rotates in a collar 34 fixed to the inner side of the door. The inner door handle is rotatable to release the latch or bolt mechanism when the outer handle is inoperative.
Patent GB-222971-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B75/02
Filed: 1923-07-13
Abstract: 222,971. Ricardo, H. R. July 13, 1923. Valves.-A supplementary charge of air, with or without inert or other gas, is admitted at or near the end of the suction stroke through ports K controlled by a rotary sleeve valve P, the normal inlet and exhaust being controlled by poppet valves in the cylinder head. Regulating.-A throttle F controlling the main admission is connected by a link O to a throttle N controlling the supplementary admission, the latter throttle being arranged to come into action only after the former has been partly closed. The throttle N may be automatically controlled by a diaphragm acted on by the depression in the induction pipe. Valve gear.-The valve P may be rotated from the cam shaft H by skew gearing H<1>, Q and a pinion Q<2> engaging a toothed ring on the valve. The rings of valves of several cylinders may gear with each cther. Specification 135,598, [Class 7 (iii), Internal-combustion engines, Carburetting- apparatus &c. for], is referred to.
Patent GB-477587-A (GB)
Title: Process of and apparatus for the preparation of solid carbon dioxide in agglomeratedform
IPC: C01B32/55
Filed: 1936-06-30
Abstract: 477,587. Extruding solid carbon dioxide. HESSLING, W. June 30, 1936, No. 18193. [Class 87 (ii)] Solid carbon dioxide is subdivided into a number of deflected streams before or as it issues from the nozzle of a plunger extrusion press to increase the uniformity of its density. As shown in Fig. 1, the carbon dioxide is forced by the plunger 3 through a nozzle 4 which has a, flared portion provided with a conical core 5 supported by partitions 6 to deflect the material. In Fig. 4, the nozzle comprises two rows of holes 10 and deflecting partitions 8, 9 are provided. In the form shown in Fig. 5, liquefied gas is delivered by a nozzle 15 surrounded by an insulating sleeve 16 of glass &c. to prevent the flakes of " snow " being attracted to the walls of the funnel. An enlarged chamber 23 is provided between the plunger and the outlet to render the pressure more uniform. The outlet comprises a series of rings 19 perforated by holes 18 which may be of the same or different diameter. The end of the outlet is closed and provided with a deflecting cone 22. The extruded sticks of carbon dioxide strike plates 24 which break them into pieces which fall into the funnel 25. In a further modification a single plate may be arranged to break the sticks into different lengths.
Patent GB-115774-A (GB)
Title: An Improved Fire Extinguishing Compound.
Inventor: GREENWOOD JOE
IPC: A62D1/00
Filed: 1917-12-08
Abstract: 115,774. Greenwood, J. Dec. 8, 1917. Fire-extinguishing by pulverulent materials.-A fire-extinguishing powder comprises a mixture of sodium bicarbonate, sodium chloride, calcium carbonate, and sand, with or without the addition of sawdust in about equal proportions. The powder is stored in cylindrical containers provided with easily detachable covers.
Patent GB-755893-A (GB)
Title: Top table with a rotary plate, especially for use in machine tools
IPC: B23Q1/03
Filed: 1954-06-22
Abstract: 755,893. Dividing-engines. DIXI, SOC. ANON. June 22, 1954 [July 2, 1953], No. 18239/54. Class 97 (3). [Also in Group XXII] A top table 16, Fig. 1, e.g. for dividing and indexing machines, comprises a plate 18 rotatable on a housing 17 which may be set up on the machine slide 7 with the plate either parallel with or perpendicular to the surface of the slide, the housing having an extension 23, Fig. 5, providing a large contact area on the slide when the table is arranged perpendicularly, and cutting across the plane of contact between the housing and slide when the table is arranged parallel to the slide. The plate is clamped to the housing by a number of bolts 41 engaging by their heads 43 a ring 45 on the table and being urged against the ring by springs 47. The plate is released by turning a disc 51 by a handle 57 connected to a projection on the disc by lever 59 and link 58. A lever 48 pivoted beneath each bolt has a bearing 50 running on the disc and engaging a depression 52 to effect clamping. On turning the disc the bearings move out of the depressions thus raising the levers and bolts. Coarse adjustment of the plate is effected manually with the aid of scale 21, and fine adjustment is made by hand wheel 62, Fig. 8, driving the plate via worm 63, worm wheel 64 and pinions 67, 69, a scale being provided on ring 60 and viewed through a microscope 61. Alternatively the scale may be projected on to a screen. Pinion 67 and worm wheel 64 are loose on a bolt 65 urged downwardly to clutch them together frictionally by a spring 70. The end of the bolt cooperates with a lug 73 on disc 51 which may be positioned to free both the plate and parts 64, 67 for coarse adjustment of the plate. In a second position, the plate remains free but parts 64, 67 are clutched together for fine adjustment of the plate. In its final position, the plate is clamped. In a modification worm wheel 64 is keyed to the bolt and dogs are provided on pinion 67 and bolt head 74. Specification 755,894 is referred to.
Patent GB-920255-A (GB)
Title: Photographic camera equipped with photo-electric exposure meter
IPC: G03B7/06
Filed: 1959-05-28
Abstract: 920,255. Photographic cameras. VOIGTLANDER A.G. May 28, 1959 [July 18, 1958], No. 18250/59. Class 98 (1). A photographic camera having a built-in photoelectric exposure meter and a manual adjusting member mounted on the camera body by adjustment of which a follow-up mark associated with the pointer of the exposure meter and at the same time transmission gearing operating on a light value setting member of a shutter on the objective are actuated is characterized by a scale calibrated for filter factors and reference marks relating thereto, one part of this arrangement being connected with the manual adjusting member and the other part being on the camera body. As shown (Fig. 2) a camera comprises an exposure meter pointer 16 visible in a view finder 13 together with a followup pointer 18 coupled through a cam ring 40 and cam follower 64 to a manual adjusting knob 45. The knob 45 is also coupled through gears 29-31 and a shaft 20 to a differential gear mechanism for setting the light value of the camera-as described hereafter. A filter factor scale 44 (Fig. 1) is provided on the camera top 2 and a series of reference marks 43 on the knob 45, by which, after an adjustment of knob 45 to obtain registry of the pointers (with consequent setting of the camera according to light value), a further adjustment of the knob 45 may be effected to take a filter factor into account. In this last adjustment, that mark 43, which ends up adjacent the zero mark of scale 44 is used as index. The differential gear mechanism referred to above comprises, as shown (Fig. 5), a ring 23 in toothed engagement with a pinion 21 on the end of shaft 20 and carrying a planet wheel 25 in toothed engagement with both a diaphragm setting ring 5 and an exposure time setting ring 4. Ring 4 is provided with a finger piece 28 by means of which the aperture/exposure time combination may be altered at constant light value. In order that different film sensitivities may be taken into account the cam ring 40 may be uncoupled from the knob 45 and moved to different angular positions relative thereto (on depression of a projecting finger piece 58), a film sensitivity scale 58 rotatable with the cam disc 40 and an index mark 60 on the knob 45 being provided for this purpose. This releasable coupling is described in detail in the Specification with reference to Fig. 4, not shown. To counteract the effect of play in the transmission gears 29- 32, a similar amount of play is provided in the coupling between finger piece 57 and cam ring 40. A rewind knob 36 and spindle 34 is provided coaxial with the knob 45.
Patent GB-1479659-A (GB)
Title: Optical reading of recorded information
IPC: G11B11/18
Filed: 1975-02-19
Abstract: 1479659 Optical record readers; tracking control PLESSEY CO. Ltd. 19 Feb 1975 [26 April 1974] 18309/74 Heading G1A [Also in Divisions G3 and G5] An optical sound-track sensor, responsive to the width and displacement of a groove cut in a polished surface, comprises: means providing a beam of light to illuminate the region of the groove; a pair of photo-detectors arranged to receive light reflected by the polished surface; and circuits providing the sum and the difference of the detector signals. A light beam 5 illuminating the polished surface 3 of a recorded disc 1, has enough width W to illuminate a groove 2 which, as the disc rotates, is displaceable about a datum position 4 and variable in width between g and G, but is not wide enough to illuminate adjacent grooves. Photo-cells 7, 8, are on each side of the datum 4, receive rays 6 reflected from the polished surface 3 but none from the unpolished groove 2, so that the sum of electrical signals provided by the cells 7, 8 is an inverse measure of the groove width 2 while their difference represents the groove displacement from the datum 4. The difference signals may further be used for controlling the tracking of a tone arm on which the photo-cells are mounted, and apparatus having a maximum response frequency not much exceeding 4 Hz.
Patent GB-255639-A (GB)
Title: Improvements in the treatment of ores or materials containing oxide of iron for recovering such oxide
IPC: C22B1/08
Filed: 1925-07-17
Abstract: 255,639. Dicker, S. G. S., (Kalmus, Comstock, & Wescott, Inc.). July 17, 1925. Chlorine ; bromine.-Iron is removed from ores and other materials containing substantial quantities of iron, such as 40 per cent, particularly certain Cuban iron ores and pyrites cinders, by treating the material in presence of a carbonaceous reducing agent with chlorine or bromine so as to volatilize the iron as chloride or bromide which is then treated with air or oxygen to produce iron oxide and recover the chlorine or bromine. A comparatively small quantity of the reducing agent such as carbon or producer gas is used, and the partial reduction of the iron may be effected before or during the chlorine treatment. When other metals are present, some nickel chloride may be carried over with the ferric chloride, from which it is separated by condensing and resubliming the ferric chloride before the oxygen treatment of the latter. The nickel chloride. remains in the residue of the sublimation. The iron oxide may be obtained in the form of scales when the reaction temperature is maintained a comparatively long time (say 8 to 15 seconds) and is then suitable for metallurgical purposes; or it may be in a finely-divided form suitable for use as a pigment or rubber filler when the time is comparatively short (say up to 3 or 4 seconds). The chlorination may be effected at 400-500‹ C. and the oxidation of the ferric chloride at 800‹ C. The apparatus employed may be made of iron or of a resistant alloy of iron with chromium, nickel, or cobalt. The ore, which may be partially reduced or be mixed with carbon, is fed from a hopper 1 into a rotary cylinder 5 against a stream of chlorine from a pipe 32. The ferric chloride vapours pass to a condenser 13 containing a rotary scraper 14, the exit gas passing out at 17. Any remaining chlorine may be absorbed in charcoal and recovered, and other ingredients such as sulphur and phosphorus compounds are absorbed in water. The ferric chloride falls into a heater 19 which preferably receives a little hot air or chlorine at 25. Gangue is discharged at 27. The iron chloride vapour passes to an oxidizer 29, hot air being admitted at 30. The ferric oxide is discharged at 31 and the chlorine passes by the pipe 32 to the chlorination chamber 3.
Patent GB-1110407-A (GB)
Title: Improvements in or relating to dough mixing
Inventor: PICKLES KENNETH
IPC: A21D8/02
Filed: 1965-05-01
Abstract: A dough is made by mixing the liquid and fatty contents of the dough together with only a small quantity of flour to form a batter, and then mixing in the rest of the flour, the development of the dough being effected under vacuum conditions.  The dough produces a bread having a very fine crumb structure with a minimum of larger holes.
Patent GB-1118776-A (GB)
Title: Watch strap and method for its manufacture
IPC: A44C5/10
Filed: 1966-04-27
Abstract: 1,118,776. Bracelets. H. NOBS. 27 April, 1966 [8 Feb., 1966], No. 18485/66. Heading A3H. [Also in Divisions B3 and F2] A bracelet comprises a series of elements with collars 12, 13 which are staggered or aligned and which interfit in spaces of an adjacent element and are connected by a pin 14, the pin being a close fit in one series of collars and passing freely through the others to allow hinging, the collars being closely adjacent or in contact on the inner side the bracelet and the outer surface being apparently free of collars and outwardly curved.
Patent GB-1220220-A (GB)
Title: Improvements in or relating to material discharge apparatus
Inventor: MCLAREN JAMES
IPC: B65G53/46
Filed: 1967-04-21
Abstract: 1,220,220. Pneumatic conveyers. COAL INDUSTRY (PATENTS) Ltd. 11 April, 1968 [21 April, 1967], No. 18527/67. Heading B8A. The lower portion of a material discharge vessel 10, provided with a porous base 11, and the plenum chamber 12 are divided into sections 13, 15 by baffles 14, 16, each section 15 being provided with an independent air supply whereby the discharge of material into discharge pipes 19 leading from each of the sections 13 is individually controllable. The discharge of material is arranged to be continuous by the provision of a feed hopper 1 having inlet and outlet valves 3, 5 which, together with a valve 22, controlling the supply of pressurizing air to the vessel 10, equalization valve 24 and a vent valve 8, are controlled to maintain the level of material in the vessel 10 and hopper 1 above a predetermined level. Additional air may be supplied through a pipe 27 to the discharge pipes 19 above closure members 25 to assist the discharge of material.
Patent GB-705704-A (GB)
Title: Improved split drum for winders producing cheeses
IPC: B65H54/50
Filed: 1951-08-07
Abstract: 705,704. Winding yarn. AKT.-GES. J. J. RIETER & CIE. Aug. 7, 1951 [Aug. 7. 1950]. No. 18620/51. Class 120(2) The split traverse drum 9 of a yarn winding machine is provided with a plurality of ribs 17 or slots 18 of uniform circumferential extension, so that the yarn, in contacting the periphery of the drum is supported either by the ribs 17 or by the webs between the slots 18 and is thereby braked by the drum to a much less extent than if its surface were plain. The ends of the drum are provided with apertures 21 to aid ventilation.
Patent GB-213487-A (GB)
Title: Improvements relating to whistles
IPC: G10K5/00
Filed: 1923-07-19
Abstract: 213,487. Hudson, J. C., and Hudson, J. July 19, 1923. Whistles. - In a whistle comprising a cylindrical barrel a and a tangential mouthpiece b, the knob or pommel which carries the attachment ring c consists of a hollow cap-like sheetmetal stamping or pressing d having at its open end concave edges d' which conform to tha shape of the circumference of the barrel and ara seated in a corresponding groove formed therein. The pommel is secured by soldering or brazing, a groove h being provided to receive a holding wire during this operation.
Patent GB-683841-A (GB)
Title: Improvements relating to radio receivers
Inventor: GANT HARRY NORMAN
IPC: H03G11/06
Filed: 1950-07-26
Abstract: 683,841. Frequency modulation; automatic gain control. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 29, 1951 [July 26, 1950], No. 18627/50. Class 40 (v). Rapid fading in F.M. receivers, such as is observed in car receivers moving quickly through a built-up area, is liable to cause a " fluttering " of the received signal owing to the action of the automatic gain control giving periodic bursts of enhanced noise every time the car passes through a position of low field strength. The invention provides means for reducing this effect by arranging that the A.G.C. circuit does not function for periodic fading of the order of frequency (e.g. 10-60 c/s.) at which this phenomenon is observed. As shown, the F.M. receiver comprises a frequency-changing stage 1 and I.F. amplifiers 6, 7 feeding a gridcurrent pentode limiter 11, the output of which passes to a frequency-discriminating detector 14, amplifier 15 and loud-speaker 16. Gaincontrol voltage is taken from a tapping on the grid-cathode resistor 12, 13 of the limiter 11 and is fed back through a low-pass filter 18, 19 to the grid of the I.F. valve 6. The time constant of the filter is chosen so that the gain control, whilst effective for slow changes of field strength, is ineffective at the frequency of the periodic rapid fading, and at higher frequencies. In practice this time constant may be one-fifth of a second. The system may be used on a stationary receiver for receiving transmissions from a mobile transmitter, or in other circumstances in which rapid periodic fading may occur.
Patent GB-814327-A (GB)
Title: Improvements in and relating to end fittings for suction pipes
Inventor: HOBSON ERIC DOTT
IPC: F04B53/10
Filed: 1956-06-15
Abstract: 814,327. Reciprocating pumps. YARROW & CO. Ltd., and ANDRE RUBBER CO. Ltd. May 30, 1957 [June 15, 1956], No. 18678/56. Class 102(1). [Also in Groups XVII and XXXIII] An end fitting for a pipe la, Fig. 2, adapted to be connected with a suction pump comprises a hollow body 12 of flexible material having a neck 17 in which the suction pipe is clamped, the body being so shaped as to terminate in a lower open end of greater cross sectional area than the pipe 1a, said lower end being spaced by suitable means 18 from the bottom of a tank. A reinforcing rod 15 of easily bendable metal may be imbedded in a lower thickened rim 14 so that the body can be bent to form a lower open end having a triangular shape A, Fig. 4, or the rectangular or elliptical shape B. The means 18 may be (a) integral with the body 12, (b) separate spacer pads secured with the body 12 to studs 19 on the tank floor, or (c) spacer pads secured to the floor 11a of a tank and tapped to receive securing bolts. A clamping ring, surrounding the body, may be held in position by the bolts. Any flexing of the tank floor 11a is stated to result in a contraction or expansion of the flexible body 12 without disturbing the position of the lower open end of the body relative to the floor of the tank.
Patent GB-477680-A (GB)
Title: Improvements in or relating to tubular coolers adapted for use with external combustion engines employing a permanent gas as the working medium
IPC: F28F9/02
Filed: 1937-07-06
Abstract: 477,680. Straight-tube heat-exchangers. NEW ENGINE CO., Ltd., and MALONE, J. F. J. July 6,1937, No. 18766. [Class 64 (iii)] A heat-exchanger suitable for use in a hotgas engine for cooling after compression comprises a vertical group of finned tubes 6 connected at their ends to gas inlet and outlet headers 9 and spaced from the walls of a casing 1 by plates 8 which direct the cooling fluid in a sinuous course along the tubes. The tubes are connected to opposite sides of headers mounted in a lining 5 which may be slid in and out of the casing. Separate sections of a tube group may have separate inlets and outlets.
Patent GB-223319-A (GB)
Title: Improvements in belt or like tensioning and fastening appliances
IPC: A44B11/18
Filed: 1923-07-21
Abstract: 223,319. French, G. F. July 21, 1923. Wire and cord strainers.- A belt or similar tensioning and securing device comprises a frame A and an arrangement of two cross-rods, one, b being carried by the frame and the other, d, being pivoted to the frame either through a cross-bar c sliding on the frame, Figs. 1 and 8, or directly as in Fig. 13. One end of the belt is permanently secured to the cross-rod d, the other end being passed around the cross-rod b and being tensioned by rotating the lever-frame A so that the end b passes through the link D, of which the second eross-rod d forms a part, and so that the cross-rod c, in conjunction with the first cross-rod b, nips and holds the free end of the belt. The pivot of the link D connecting it to the frame may be out of the plane of the latter so as to lessen the tendency of the frame to spring back, but a small buckle and strap f<1>, or chain f<2>, Fig. 2, eccentric sleeve k, Fig. 13, or a bifurcated sliding member, not shown, may be provided to prevent this, or, in a modified form, Fig. 8, in which the cross-rod b is slidingly mounted on the frame, the ends of the frame may be passed through holes d<2> in the link D to secure the apparatus. Pins a<@> limit the movement of the cross-bar c. In a modification, not shown, the opposing faces of the members band c may be serrated.
Patent GB-990374-A (GB)
Title: Improvements relating to tractor hydraulic control systems
IPC: A01B63/10
Filed: 1961-08-08
Abstract: The subject matter is the same as that of Specification 990,371, but the claims differ.  Specifications 990,372 and 990,373 also are referred to.
Patent GB-515660-A (GB)
Title: Improvements in and relating to artists' desks
IPC: A47B41/04
Filed: 1938-06-25
Abstract: 515,660. Artists desks. EDUCATIONAL SUPPLY ASSOCIATION, Ltd., and ANDREWS, L. G. June 25, 1938, No. 18914 [Class 52 (iii)] In an art desk, comprising a stand 5 and an adjustable table 1, the table 1 is provided with a series of members 8 selectively engaging with a cross-rod 10 to form alternative pivots for adjustment of the table 1. The table 1 is locked in adjusted positions by means of slotted stays 2 pivoted to table brackets 3, and screwed pins 6 and nuts 7 on the stand. Guards 11 for the members 8 and the cross-bar 10 are provided together with side plates 12.