baber/WOPTO huggingface dataset:
Patent GB-1380170-A (GB)
Title: Single lens reflex cameras
IPC: G03B7/083
Filed: 1972-02-22
Abstract: 1380170 Single-lens reflex camera ASAHI KOGAKU KOGYO K K 22 Feb 1972 [22 Feb 1971] 8172/72 Heading G2A A single-lens reflex camera includes an electrical exposure-time determining circuit T which is connected to a current source through a switch S 1 , this switch being closed upon initial actuation of a shutter release member 1. A retaining member 7 is coupled to the reflex mirror driving lever 18 of the camera such that on full actuation of the release member 1 with consequent movement of the driving lever 18, the retaining member is moved to engage the release member and hold it in its actuated position. Upon termination of the exposure by the circuit, the lever 18 is returned to its initial position and in so doing, disengages the retaining member thus permitting the release member 1 to return to its inoperative position. The retaining member is arranged to terminate the exposure measurement as it moves to its operative position by opening memory circuit switch S 2 . The member 7 may be operated manually by means of member 23.
Patent GB-203994-A (GB)
Title: Improvements in and relating to differential mechanism for cash or other registers
IPC: G06C7/10
Filed: 1922-06-09
Abstract: 203,994. Haddan, A. J. H., (National Cash Register Co.). June 9, 1922. Differential mechanism.-Comprises differential mechanism including a pivoted actuator common to all the keys of a bank and a driven member pivoted concentrically with the actuator together with an improved construction and arrangement of trip connection between the actuator and the driven member whereby the latter is adjusted differentially at the same time as the actuator. A shaft 159 driven by cams 210, 211 and quadrant gears 218, 219 from the main shaft 65 carries fixed to it a series of driving quadrants 221. Loose on the shaft 159 near each quadrant 221 are the actuator 222 and a driven member 228. The latter has a forwardly projecting leg 229 which is bent over at the end to form a flange 230. The actuator is formed with teeth 223 adapted to engage a vertical rack 224 and has a forwardly projecting leg 231, the end of which carries a stud 232 on which is loosely pivoted a lever 233 the upper end of which normally abuts against the flange 230 while a pin 234 on the lever 233 normally engages a slot 235 in the edge of the leg 229. The lever 233 is riveted at 236 to a latch plate 237 loose on the stud 232. A spring 2381 holds the parts normally in the position shown in Fig. 4 and with the tail 238 of the latch plate engaging a notch 2221 in the quadrant 221. When the main shaft is given a turn, the quadrant 221 is rocked first clockwise, Figs. 2 and 5, and then counterclockwise. The actuator 222 and member 228 are rocked together until the flange 230 engages the zero trip pawl 87 on the shank of a depressed key, whereupon the latch plate 237 is rocked clockwise, Fig. 4, out of the notch 2221 and the nose 23.9 engages a notch 240 in a fixed plate 241. An arm 1222 on the actuator is provided with a pin 2222 which engages a slot in the rack 225 partly concentric to the shaft 159. The teeth 223 do not quite engage the teeth 224 normally, but the first slight rocking of the member 222 while the pin 2222 is moving in the concentric part of the slot brings teeth 223, 224 into gear without moving the rack. The latter is held in the zero position when the latch 237 is tripped by the zero trip pawl 87. On a key being depressed, the pawl is moved out of the path of the flange 230 and the rack 225 is moved down until the flange is arrested by the shank of the depressed key. A fixed cam 244, adapted to engage a pin 245 on the latch 237, and a weight 246 on the stud 232, prevent the latches 237 being whipped out of engagement with the driving sectors due to too sudden movements. Specifications 203,995, 203,998, and 206,798 are referred to.
Patent GB-152579-A (GB)
Title: Improvements in semi-diesel oil engines
IPC: F02B9/10
Filed: 1920-03-19
Abstract: 152,579. Soc. de Moteurs Ó Gaz et d'Industrie MÚcanique. Feb. 2, 1920, [Convention date]. Cylinders receiving liquid fuel.-In order that small charges of coal oil may not fail to ignite on injection into the cylinder, the vaporizer is in the form of two spherical chambers B, C united by a passage c and not cooled; the fuel-nozzle is directed to a point d near the small opening c. The object of the chamber C is to trap hot combustion products, and thus heat the incoming charge. The fuel is injected in stages; a small quantity injected at the beginning of the compression stroke is heated and readily ignites at the end of the stroke when the larger and variable portion is injected. The pump plunger H is worked bv a cam with two swells f, f<1> for this purpose.
Patent GB-550418-A (GB)
Title: Improvements in armour-piercing projectiles
IPC: F42B12/06
Filed: 1941-07-01
Abstract: 550,418. Armour piercing bullets or projectiles. ROBERTSON, J. H. July 1, 1941. No. 8269. [Class 9 (i)] An armour-piercing projectile of small calibre for use with rifles, machine guns or small cannon, comprises a metal core-solid for a bullet, hollow for a shell-a hard metal sheath or casing to encase the core, the front end of the core or the sheath forming a mechanical punch with an annular striking portion situated at right-angles to the line of flight, and a soft crushable contour. The core B may be of lead with a hard metal sheath F the rear end of which is turned over the core and the front end B<SP>1</SP> of which is disposed at right angles to the line of flight and is concave. A further sheath D encloses the core and a soft nose C of copper or other soft metal and the cartridge case and composite bullet are engaged together by an annular recess E. In a modification, the core B<SP>2</SP> is of steel and also an annular front portion B' of flat or concave shape, and is provided with screwed aperture to engage a screwed stem G on a soft nose C, the core and nose being encased by a hard metal sheath D. In a further modification, Fig. 4, the steel core B<SP>3</SP> is of cigar-shape and the sheath F has a turned-over front portion to engage the flat front end of the core. The rear tapered portion is seated in a soft metal plug I, and a sheath D encases the core, the plug, and a soft nose C.
Patent GB-917282-A (GB)
Title: Method of producing cube oriented silicon steel sheet and strip
IPC: C22C38/02
Filed: 1959-03-10
Abstract: A method of producing a cube-oriented silicon steel sheet of highly-directional orientation in the two mutually perpendicular directions and low iron core loss comprises hot rolling a silicon steel stock containing 2 to 4% silicon, 0.010 to 0.040% aluminium and the rest iron with incidental impurities to reduce its thickness 2.5 to 10 times the desired final gauge, i.e. 1 mm. to 4 mm., subjecting the hot rolled steel to pickling, then to an initial cold-rolling in one direction to reduce its thickness by 40 to 80% again to a final cold rolling in a direction within \sB 20 degrees of a right angle to said one direction with a reduction of 30 to 70% and thereafter subjecting said twice-rolled steel to heat treatment.  The final heat treatment consists of annealing for a short period, e.g. 4 minutes, at a temperature within 750 DEG  to 1000 DEG  C. followed by annealing for 5 to 40 hours within a temperature of 900 DEG  to 1300 DEG  C.  In one embodiment after the first cold rolling the sheets are welded together end-to-end to produce a sheet strip whose longitudinal direction makes a direction approximately at right-angles to the direction of said initial cold rolling, the welded strip then being subjected to a final cold rolling and heat treatment.  Alternatively, a number of twice cold-rolled sheets are welded end-to-end to produce a steel strip which is then heattreated. In a specific example hot-rolled silicon steel stock containing 0.03 to 0.04% C; 2.98 to 3.02% Si; 0.018 to 0.023% Al in all and 0.013 to 0.018% acid-soluble Al, 1.6 mm. thick is pickled, cold rolled with a reduction of 60% in one direction, then again cold-rolled with a reduction of 50% in a direction at right-angles to said one direction to a final gauge of about 0.33 mm.  The twice-rolled steel strip is subjected to a continuous anneal for 4 minutes at 800 DEG  C. in order to carburize and recrystallize it and to a final box anneal for 15 hours at 1150 DEG  C. to develop the magnetic properties.  U.S.A. Specification 1,965,559 is referred to.
Patent GB-254367-A (GB)
Title: Nut splitting machine
IPC: A23N5/00
Filed: 1925-03-30
Abstract: 254,367. Field & Co. (Fruit Merchants), Ltd., and Deeprose, A. R. March 30, 1925. Cracking nuts. - A nut-splitting machine comprises one or more rotary pulley conveyers provided with peripheral compartments or pockets to receive the nuts and one or more rotary cutters, each in the form of a circular knife, against which the nuts are carried by the conveyer or conveyers. Each conveyer may comprise two axially-adjustable parts so that nuts of different sizes may be operated upon. As shown in Figs. 1 and 3 the rotary cutters 8 are mounted on a shaft 7 which is carried in bearings 6 on adjustable brackets 6<1> and is parallel to the shaft 3 on which the pulley conveyers 4 are mounted. The conveyers 4, except for their upper front portions are enclosed in a casing 5 which has an upper extension serving as a protective covering for the cutters 8. Each conveyer 4 comprises two complementary portions 4a, 4<b>, Fig. 4, and the pockets are constituted by blocks 9 or the like arranged in facing pairs on the flanged portions of the conveyer elements. The elements 4a, 4b may be adjustable on the sha.ft 3. and the blocks may be detachably and adjustably secured to the elements. After passing the cutters 8, the severed halves of the nuts are carried round by the conveyers and fall through the casing 5 on to the inclined discharge shoots 14 which are preferably perforated for the escape of dust &c. The lower part of the framing 1 of the machine may be constructed as a bath or steam chest for moistening and softening the nuts before feeding them to the conveyers.
Patent GB-140770-A (GB)
Title: Improvements in washing machines and the like
IPC: D06F23/04
Filed: 1920-03-22
Abstract: 140,770. Weihe, A. H. March 25, 1919, [Convention date]. Treating substances with liquids.-Clothes are washed, and are subsequently rinsed and centrifugally dried, by placing them in a rotary-perforated drum 25 mounted on a shaft 6 and provided with a circulator which in the washing operation draws the liquid from the bottom of the casing 1 and discharges it into the drum through a perforated cone 21. Radial baffles 17 check rotation of the liquid and direct it to the circulator which consists of an outer conical member 18 carrying the clothes drum and connected by vanes 20 with the hub 19. In a modification, Fig. 2, the circulation is effected by a centrifugal pump 29 which forces the liquid through an outer pipe 31 to a chamber 32 whence it passes to the drum through a perforated cylinder 33. In this construction the casing is mounted upon a stove as shown.
Patent GB-515989-A (GB)
Title: Wool holder
IPC: D04B3/06
Filed: 1939-03-16
Abstract: 515,989. Wool holders FAIRBROTHER, H. March 16, 1939, No. 8465 [Class 18] A wool holder comprises a cage 1 attached to a base 2 by a resilient engagement of the cage and base. The base may be of rubber, metal, &c. and may have upstanding bent tongues to engage the cage.
Patent GB-631453-A (GB)
Title: Apparatus for determining the mach number in a stream of fluid
IPC: G01P5/10
Filed: 1946-03-19
Abstract: 631,453. Air current indicators. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and PROBERT, R. P. March 19, 1946, No. 8979. [Class 97 (iii)] [Also in Group XXXVIII] In apparatus for determining the Mach number in a fluid stream, temperatures are measured at two points such that the Mach number is a function of the temperatures. The Mach number is a unique function of the static and dynamic temperatures and the latter of these can be determined at a stagnation point while the former can be ascertained from the temperature in a boundary layer adjacent to a solid boundary, since this exceeds the static temperature by a constant fraction of the dynamic temperature. In the preferred apparatus for measuring these temperatures a streamlined body 10, Fig. 1, set in the fluid stream, contains two thermo-couples 16, 17, the former set in a tubular cavity 19 in the nose of the body 10 measuring the dynamic temperature, and the latter 17 projecting into the boundary layer adjacent the surface of the body, and giving an indication from which the static temperature can be deduced. A small bleed hole 20 is provided at the rear end of the cavity 19. The thermocouples 16, 17 are connected in the circuit .shown in Fig. 2, in which slider 24 adjusts for the temperatures of the cold junction, slider 26 adjusts for the fraction by which the dynamic temperature exceeds the static temperature and slider 27 adjusts for a ratio depending on the value of 7 for the gas. The coils 29 and 30 are wound perpendicular to each other on the former of a moving coil galvanometer and the voltages generated in them, when the constants of the circuit are set, are such that the tangent of the angle of deflection is proportional to the square of the Mach number. The scale may therefore be calibrated to indicate the Mach numbers directly.
Patent GB-1004442-A (GB)
Title: Improvements in or relating to detergents and methods of manufacturing same
IPC: C11D17/00
Filed: 1964-02-28
Abstract: A liquid detergent composition comprises as the major constituent a liquid milk product, defined as a derivative of milk having at least one of the normal prolein and carbohydrate constituents of milk in aqueous solution (including colloidal solution) and having a fat content of 2.5% by weight or less, and as minor constituents a bactericide, an acid neutralizing agent, and an anionic surface-active agent. Preferably, the fat content is as low as possible. Suitable liquid milk products comprise rennet whey, lactic acid casein whey, buttermilk, and skim milk, which may have been reconstituted from their powders by addition of water. Inorganic salts, such as sodium chloride or sulphate, may be added to adjust the viscosity of the composition.  Suitable bactericides include formalin and the substances sold under the Registered Trade Marks "Nipagin," "Nipasol" and "Foromycin." The acid neutralizing agent may be any compatible alkaline material for example sodium hydroxide or carbonate, and preferably sodium tripolyphosphate.  The surface-active agent may be non-fatty-acid derived, preferably sulphonic acid derived, more preferably an alkyl aryl sulphonic acid or alkali metal salt thereof, especially sodium dodecyl benzene sulphonate. The pH of the composition is preferably between 6 and 7.5.  Perfumes may be added.
Patent GB-1007977-A (GB)
Title: Improved composite structure containing glass fibres
Inventor: HOLT JOHN STUART
Filed: 1963-03-06
Abstract: 1,007,977. Laminates. MARGLASS Ltd. March 5, 1963 [March 6, 1962], No. 8536/62. Heading B5N. A laminate comprises a woven or knitted glass fabric and a fabric of parallel glass filaments or threads bonded together with a thermosetting resin, e.g. an epoxy resin. A backing fabric of woven or knitted glass yarn may be bonded to one or both sides of the laminate. Layers of the backed material may be superposed and hot-pressed in a mould to form a shaped product. The component layers of the laminate may be heat- or solventcleaned and pretreated with an organo-silane or -chrome complex to improve adhesion. In examples: (a) a woven glass fabric was immersed in a solution of an epoxy resin in acetone, dried, contacted between rollers with a sheet of parallel glass yarns, and backed on one or both sides with a woven glass fabric; layers of the product were stacked and moulded under pressure to cure the resin, (b) layers as in (a) were passed together through an acetone solution of the resin, pressed and dried, and treated as in (a).
Patent GB-374179-A (GB)
Title: Improvements in and connected with steam generators
IPC: F22B21/34
Filed: 1931-03-20
Abstract: 374,179. Water-tube steam boilers. STIRLING BOILER CO., Ltd., 32, Farring- don Street, London, and SUMMERS, G., St. Omer, Bellfield Avenue, Harrow Weald, Middlesex. March 20, 1931, No. 8602. [Class 123 (ii).] In a Stirling-type boiler having a combustion chamber 11 provided with water-cooled side walls, and a front water-tube screen 3, the steam and water from the side walls and screen discharge into a steam and water drum 1 separate from the boiler drums and arranged at or above the normal water level in the boiler. The upper headers 7a of the side water cooled walls are connected to the drum 1 by tubes 7. Tubes discharging steam and water from front watercooled walls are arranged parallel with and above the front water-tube screens 3.
Patent GB-513848-A (GB)
Title: Improvements in or relating to oxygen jet cutting machines
IPC: B23K7/00
Filed: 1938-03-21
Abstract: 513,848. Dividing by fusion. HANCOCK, L. J. March 21, 1938, Nos. 8637 and 31441. [Class 83 (iv] A flame-cutting machine comprising a burner and a driven tracer wheel movable in any direction parallel to the planes of a work holder and a drawing &c. provided with an indicating means co-ordinated with respect to the burner and arranged to indicate with respect to lines on the drawing the direction in which the wheel moves the burner has an indicating means in the form of a cruciform light image or shadow thrown in the drawing by an optical projector or in the form of a real cross located adjacent the drawing, one line of the cross being parallel to the plane of the tracer wheel, the indicator being rotatably mounted and geared to turn on an axis at right angles to the drawing simultaneously with the tracer wheel. The line parallel to the flame of the tracer wheel may have an arrow head and the cross line is provided so that, particularly when turning sharp corners, the exact moment of turning is indicated when the point of intersection of the lines coincides with the corner. The burner 12, light projector 13 and motor driven tracer 19 may be carried by a structure 11 on a wheeled carriage 8 movable transversely on rails 5 on a wheeled carriage 4 movable longitudinally on rails 2 above the work 3. Projecting arms 1a on the frame 1 support a table 18, which is adjustable horizontally in two directions and also vertically and carries the drawing on its wider side. The projector 13 which is in alignment with the burner is provided with an electric lamp arranged in a reflector 37 and is provided with a tube connected by a 1 to 1 chain gear 22 to the tracer spindle which is connected by bevel gear 21 to the steering wheel 20. An inclined mirror 16 .is arranged to throw the image of the cruci- 'form mark into a vertical plane so that it is visible from the front of the machine. The projector tube has a slide 34, Fig. 2, provided with the mark and an adjustable case 35 containing the projecting lenses. The steering of the tracer wheel may alternatively be effected through the projectors. In the form shown in Fig. 2, the projector forms an attachment to existing machines being secured by an arm 23 to the casing 24 of the motor driving the tracer. To the other end of the'arm 23 is fixed a sleeve 25 in which the projector tube 27 is rotatable on ball bearings 26. The lamp 29 to reflector 30 are secured by an arm 28 to the sleeve 25. Steering is effected by the tracer handle 33, the tracer spindle being connected by chain gear 31, 32 to the projector tube. When a real cross is used it is carried at the end of a rod attached to a tubular member taking the place of the projector. In the event of a mirror being used the rod may pass through the mirror. According to the Provisional Specification the projector tube may be coupled to the tracer spindle' by two pairs of bevel wheels.
Patent GB-350588-A (GB)
Title: Improvements in or relating to continuous glass grinding and polishing apparatus
IPC: B24B7/24
Filed: 1930-03-18
Abstract: 350,588. Grinding. PILKINGTON BROS., Ltd., 631, Tower Building, Water Street, Liverpool, and WALDRON, F. B., Norwood, Eccleston Park, Lancashire. March 18, 1930, No. 8644. [Class 60.] Flat extended surfaces, surfacing.-In continuous glass grinding and polishing apparatus, a skeleton table 1, of which one-half is shown in the Figure, is inserted in the series in place of a work table, and is constructed so as to give access to the guiding and driving means for the table to facilitate repairs &c. The table has end surfaces 3 abutting against the end of the worktables 2 and has guiding surfaces 4; it is of less width than the work tables and may have openings 6 to give access to the guiding surfaces and driving pinions.
Patent GB-787034-A (GB)
Title: Method and apparatus for producing foam rubber slab or padding material
Filed: 1955-03-24
Abstract: 787,034. Coating webs. NATIONAL AUTOMOTIVE FIBRES, Inc. March 24, 1955 [Jan. 10, 1955], No. 8644/55. Class 140. Apparatus for making foamed rubber slab material comprises means for advancing a flexible backing member over and in contact with a gauge plate, means for depositing uncured foamed latex on the backing member in front of an adjustable doctor blade and means for advancing the backing member through aligned gelling, preheating and curing ovens. A web of flexible backing material is passed from a reel 14 over a gauge plate 10, is coated with uncured latex foam from a pipe 18 and passed beneath a vertically adjustable doctor blade 12. The coated backing material is then passed through gelling, preheating and curing ovens 28, 30, 40 on endless conveyer belts 22, 42. The belt 22 passes over bed plates 36 and beneath electrodes 32 adjustably connected to high-frequency oscillators 34. The ovens 30 and 40 are heated by hot air or steam. The conveyer 22 may be made of neoprene and the conveyer 42 may be of flexible wire mesh. Compressible displacement members of alpha cellulose fibres may be placed in the foam rubber. The fibres are passed from a reel beneath a cutter 54 to produce strips 55 which are passed through a twisting frame 56 and are then passed with the backing material over the gauge plate 10 to receive the coating. The surface of the doctor plate may be shaped to produce shaped slabs. The backing material may be woven fabric, plastic film or paper.
Patent GB-495287-A (GB)
Title: Improved means for varying the piston stroke of internal combustion engines
IPC: F02B75/04
Filed: 1938-03-21
Abstract: 495,287. Connecting-rods; eccentrics. JONVILLE, C., and FERLAY, P. March 21, 1938, No. 8669. Convention date, March 22, 1937. [Class 122 (i)] [Also in Group XXVII] In an internal-combustion engine in which the connecting-rod is attached to the crank pin or gudgeon pin or both by an eccentric that is automatically rotatable to increase the length of the exhaust stroke, a cam 8 rigid with the eccentric 4 is urged toward the median position by a spring-actuated member 9 mounted on the connecting-rod 3 so as to start the rotation of the eccentric at the appropriate time. The cam shown in Fig. 1 makes one complete revolution during a complete four-stroke cycle. In a modification, the cam may oscillate the eccentric through an angle of 180‹. In order to obtain a smoother action, there may be two cams, one on each side of the eccentric, and the spring-actuated member may carry two rollers for engaging the cams.