baber/WOPTO huggingface dataset:
Patent GB-952318-A (GB)
Title: A set of flash lamps for photoflash devices
IPC: F21K5/08
Filed: 1961-06-16
Abstract: 952,318. Multiple photoflash devices. PATENT-TREUHAND-GES-FUR ELEKTRISCHE GLUHLAMPEN. June 16, 1961 [July 4, 1960; Aug. 10, 1960], No. 21824/61. Heading G2L. A strip 1 of cardboard or synthetic plastic provides a common base for a series of miniature baseless flash bulbs 2, normally coated internally and/or externally with a colourless or blue varnish, the unit so formed acting as an insert for a photoflash device such as is shown in Fig. 2. The preferred type of lamp is one having a volume less than 5.0cm<SP>3</SP> and is attached to the strip by passing exhaust tip 6 through a hole 5 and lead-in wires 9,10 through holes 7, 8 the ends being clipped to the strip to form contacts. The photoflash device may be made entirely of synthetic plastic, a suitable coating being given to the reflector. A box is described for housing two inserts of the above type. The bulbs may alternatively lie in the plane of the strip as in Fig. 7. In this case cutouts 32 receive the bulbs 2, lead-in wires 9,10 being affixed to contact 33 and feeder perforations 31 may also be provided. Modifications of this embodiment include using unvarnished bulbs and then dipping the insert in a varnish bath, wrapping the bulbs individually in transparent synthetic plastic material, heating to fuse the material to the bulb surface and then welding each encased bulb to a plastics strip. The bulbs may also be enclosed within deep-drawn cavities formed in a double strip of transparent synthetic plastic material (Figs. 12, 13). Here a perforation 56 and incision 55 are provided to facilitate separation of the bulbs. The lead-in wires are also partly enclosed between the strips,their free-ends being bent round a stiffening rib 54. This rib may be formed integrally with the strips, by sticking on a separate member, or by filling a tube, deep-drawn at the edge of the strips. Apertures may be formed in the strips across which the lead-in wires are allowed to pass to provide contact points, the wires being otherwise embedded between the strips. Photoflash devices are described for use with the above described inserts including one with a plurality of frusto-conical reflectors. In this case the strip is not moved through the device,but a contact selector is provided for flashing one or more bulbs simultaneously. A further embodiment describes enclosing the bulbs in transparent blocks of synthetic plastic which blocks are adapted to interlock with one another thereby forming an insert. One or more faces of the blocks may have a reflecting surface as may a face of the above described strips. Suitable coloured or otherwise transparent plastics mentioned include polystyrene, polyamide, polycarbonate, ethyl cellulose, polyacrylate and cellulose ester.
Patent GB-1451040-A (GB)
Title: Process for the production of steel
IPC: C21B13/14
Filed: 1975-05-21
Abstract: 1451040 Production of steel from ore FRIED KRUPP GmbH 21 May 1975 [22 May 1974] 21837/75 Heading C7D Oxidic iron ore is reduced to iron sponge, added to molten iron in a melting vessel and reacted with carbonaceous material and an O 2 -containing gas wherein the whole of the off-gas from the melting vessel is reacted with carbonaceous material and steam and/or CO 2 , and the gases' formed are recycled to reduce the ore to sponge. Ore 2 is reduced in furnace 1 by reducing gas (mainly CO and H 2 ) at preferably, 800-1100C, the sponge passing to a melt in melting vessel 4 in which carbonaceous material 5 (e.g. coal dust, coke dust, or hydrocarbons) and O 2  containing gas 6 (e.g. O 2  or enriched air) are injected below the melt surface. The steel is tapped, further refined and/  or alloyed at 22 and cast at 26. The off-gas 7 is reacted with coal or coke dust, and steam and/or CO 2  in reactor 8, cleaned at 11, and recycled to furnace 1 for reducing ore. The off gas from furnace 1 has dust, water and CO 2  removed at 13, 14, a portion is subjected to the water gas reaction at 17, and a portion 16 is burnt with O 2 , 19, the heat produced heating the circulating gas. The gas is heated at 18 and combined with the stream 18 from the melting vessel. The melting vessel may be a pressure vessel, and the reactor 8 may be integral with the vessel 4, e.g. the reactor 8 may be the upper part of vessel 4, where no melt is present.
Patent GB-251828-A (GB)
Title: An improved floor cramp
IPC: E04F21/22
Filed: 1925-09-01
Abstract: 251,828. Iggulden, W. A. Sept. 1, 1925. Cramps.-The base 5 of a floor cramp has a thrust bearing 7 at the rear end to receive one end of the right-and-left hand actuating screw 14 and two lateral sockets 6 at the forward end to receive the pivots 8 of the eccentric joist gripping dogs 9. The forward end of the screw 14 works in the stem 10<b> of the ram 11, which stem has shoulders 12 guided in slots 13 of a web portion 9<a> extending transversely between the sockets 6. Ratchet mechanism for actuating the ram comprises a toothed pinion 17 fast on the screw and pawls 24, 25 pivoted on bolts 22, 23 carried by plates 18, 19 secured to the lever 20 by bolts 21, either of the pawls being brought into engagement with the pinion 17 by means of a pivoted trigger 26. Forward operation of the ram winds up a strap 28 fixed to a collar 29 adjacent the ratchet lever, so that the ram may be returned to its starting point by an upward pull on the strap, preferably after disengaging both pawls by setting the trigger 26 in mid position. The dogs 9 are urged inwardly by springs 31, stops 8<a> limiting their inward movement. In the modified mounting of the dogs shown in Fig. 5, a spring 34 is provided in a bore 32 extending the length of the pivot 8, the latter being secured by a spring washer 33<a>
Patent GB-1100901-A (GB)
Title: Oxidation of ethylene
Inventor: BEESLEY STANLEY
IPC: C07C51/56
Filed: 1964-05-27
Abstract: Acetic anhydride is produced by reacting ethylene and molecular oxygen with a solution containing a palladium (II) salt, a cupric or ferric salt capable of oxidizing palladium metal, acetate ions and chloride ions dissolved in acetic acid to form vinyl acetate and water, lowering the water content of the solution and separating anhydrous vinyl acetate by distillation, reacting the anhydrous vinyl acetate with acetic acid in the presence of a dissolved palladium salt and chloride ions to form acetic anhydride and acetaldehyde and separating the anhydride from the solution by distillation. It is preferred to circulate a part of the solution from the site of reaction with ethylene and oxygen through a distillation zone in which vinyl acetate and water are removed from the solution, rendering the solution anyhdrous, a zone in which the solution is reacted with anhydrous vinyl acetate forming acetic anhydride and acetaldehyde, and finally through a second distillation zone in which the anhydride and acetaldehyde are removed as vapour before the solution is returned to the original reaction site.  It is also preferred to effect the ethylene oxidation in the manner described in Specification 1,088,203, employing two zones.  The acetaldehyde product of the process of the invention may be injected into the acetic acid solution in contact with molecular oxygen, which solution contains or is in contact with a catalyst to promote the reaction of acetaldehyde and oxygen, and thereby oxidized to acetic acid.
Patent GB-186781-A (GB)
Title: Improvements in or relating to miners' electric lamps
IPC: F21L4/00
Filed: 1921-08-19
Abstract: 186,781. Wade, H., (Concordia Elektrizitats Akt.-Ges.). Aug. 19, 1921. Connections; cells. -In miners' electric lamps the battery tar minale i, k are arranged concentrically in the centre of the lamp and are separated by an insulating sleeve j. The battery is closed by a cover g and packing-rings secured by a spring ring h engaged in a groove in the casing. B o t h battery electrodes may be connected directly to the terminals as shown, or the outer electrode may be connected electrically to the terminal k through the outer casing and the cover g
Patent GB-1339064-A (GB)
Title: Safety overload disconnect devices
IPC: F16D7/08
Filed: 1971-04-19
Abstract: 1339064 Slip clutches B J WALLIS 19 April 1971 [18 Feb 1970] 22081/71 Heading F2C [Also in Division H1] A safety overload coupling for protection of an electric motor compresses three spring-loaded balls 60 mounted in sleeves 54 in the driving member 22 and projecting into recesses 62 in the driven member 32 to an extent less than the radius of the balls 60. On overload the balls ride out of the recesses. Compression springs 64 holding the balls 60 are adjustable mounted in an insulating sleeve 30 bolted to the driven member 22. Each of the three balls 60 is arranged at a different radial distance from the centre of the driving shaft 12 so that the balls 60 cannot reseat unless the driving and driven members 22, 32 move relatively through a complete revolution.
Patent GB-266275-A (GB)
Title: Improved locking mechanism for levers
IPC: B60T7/10
Filed: 1926-09-08
Abstract: 266,275. Cunningham, J., and Dickson & Mann, Ltd. Sept. 8, 1926. Hand and foot actuation; force-transmitting mechanism.-Brake or other hand or intermediate operating levers are eccentrically pivoted in relation to a fixed toothed quadrant and are locked thereto by means of a lost motion connection to a concentrically pivoted pawl carrier. The pawl carrier E, Figs. 1 and 7, is pivoted at o concentrically with the fixed quadrant A and is formed with an arcuate slot e in which engages a roller K carried by a hand-operating lever B. As shown, the lever B is pivoted to a bell crank F rocking about the centre a and serving to operate a brake rod G, the pull of the brake rod serving to retain the roller K in either of its extreme positions at the ends of the arcuate slot. The roller K coacts with a pivoted locking pawl E so that when in the forward movement of the lever B, the pawl meets the first tooth of the rack the lever moves forward in the slot and tilts the pawl which subsequently trips over the teeth but prevents return movement until the lever is moved in the opposite direction to reverse the pawl. The pawl is held in engagement with the roller and quadrant teeth by a spring H. In a modification the lever B is pivoted directly to the pawl carrier and has lost motion between lugs on the pawl carrying end thereof. The application of the invention to the brake operating mechanism forming the subject of Specifications 144,793 and 201,305, to enable a variable brake pressure to be applied and released by hand in stages, is shown, in Fig. 9, the locking gear being mounted on the rock shaft 8 of the previous arrangements. The pawl carrier E is looselv mounted on the shaft 8, the fixed toothed segment A being concentric therewith. The roller K is carried by a lever B<1> which is pivoted at b<1> to a crank or projection, which may be the cam 39 of the arrangement described in Specification 201,305, secured to the rock shaft. The lever B<1> is also connected by a link L to another crank M turning with the rock shaft. When the brake is " full off " the roller K is held in position as shown at one end of the arcuate slot e in the pawl carrier bv the turning effort of the spring 41 upon the cam 39. the initial actuation of the brake hand levers (not shown) causing the rock shaft to rotate the floating lever B<1> and pawl carrier E simultaneously until the pawl D strikes the first tooth of the quadrant, the subsequent action being as described with reference to Figs. 1 and 7.
Patent GB-516848-A (GB)
Title: Improvements in and relating to darts
IPC: F42B6/00
Filed: 1938-07-26
Abstract: 516,848. parts. GILSON & CO., Ltd., D., and GARDNER, W. J. July 26, 1938, No. 22267. [Class 132 (iii)] The flight holder shaft 3 of a dart is made. of light metal or other material impenetrable by a dart point and has an interlocking connection with a recess 14 in the rear end of the body 1, this connection being effected either by a screw thread 4 or a bead and groove. The flight 7 is held in a single slot 5 which extends from the interlocking end of the holder towards but not up to the tail end. The single slot may be replaced by cross slots and the bottom of the recess coned to produce a chucking effect on a similarly-shaped end of the flight holder.
Patent GB-908871-A (GB)
Title: Improvements in or relating to work clamping fixtures
IPC: B23Q3/02
Filed: 1961-06-20
Abstract: 908,871. Work-holders; drilling. WOODWORTH CO., N. A. June 20, 1961 [July 12, 1960], No. 22311/61. Class 83 (3). A work-clamping fixture comprises a shaft 18 carrying a pinion 24 to move a workclamping post 14, the shaft being movable axially to cause the shaft to be frictionally locked and held by torsion means 50 during use of the fixture. The shaft carries a handle 38 which is rotated to force a jaw 42 against the workpiece. As clamping pressure is increased, the reaction between the helical teeth of the rack-and-pinion cause the shaft to move leftwards and a tapered portion 34 to be locked frictionally. Moreover, the section 50 yields torsionally so that, when pressure is released from the handle, a holding force is still provided. Alternatively, the clamp may have two posts 64, 66, Fig. 3, with a cross-member 84. In a further modification, three posts are operated by rack gearing on the centre post 138, Fig. 8, and together carry a single overhanging jaw 180 to clamp a workpiece 182.
Patent GB-1502046-A (GB)
Title: Processes for treating water
IPC: C02F9/00
Filed: 1976-05-28
Abstract: 1502046 Removing polyvinyl alcohol from waste water SANDO IRON WORKS CO Ltd 28 May 1976 [28 May 1975] 22385/76 Heading C1C [Also in Division C3] Waste water, particularly from textile desizing operations, containing polyvinyl alcohol is treated by first adding to the water boric acid or borax in the presence of an inorganic salt and heating the solution above 70‹ C. at a pH from 4 to 7 and secondly adjusting the pH of the waste water to from 8 to 10 and cooling the water to room temperature to separate the polyvinyl alcohol therefrom, in the form of a compound with boric acid. The water obtained may be neutralized and any starches present removed by heating the water with an enzyme desizer, so as to saccharize the starches, or by hydrolysing the starches with an acid.
Patent GB-1150716-A (GB)
Title: Speed-Control System for Briquetting-Rolls
IPC: B30B11/00
Filed: 1966-05-19
Abstract: 1,150,716. Automatic level control. UNITED STATES STEEL CORP. May 19, 1966 [June 3, 1965], No.22390/66. Heading G3R. In a system in which loose material is led from a source of supply to a pair of power-driven briquette forming rolls the speed of the rolls is automatically controlled by the quantity of material between the source and the rolls to maintain that quantity between limits. As shown, hot-ore fines supplied to an inclined shoot 1 from a rotary kiln K are fed by a screw 3 to rolls 2 which have matching cavities 5 to form suitably shaped briquettes. Thermocouples 7, 8 are located at different levels in shoot 1 so that if the level of material in the shoot gets below or above these levels the change in the amplified output of the relevant thermocouple is effective through a biased rectifier 17 or 23 to cause operation of a relay 16 or 22. This alters the voltage applied from a potential divider 25-27 to an eddy-current clutch 10 in the drive from an electric motor 9 to rolls 2 so that the speed of the rolls is adjusted as necessary to ensure that the level of material returns to between thermocouples 7 and 8. Use of additional thermocouples at other levels is referred to
Patent GB-1467348-A (GB)
Title: Polymerization of olefins and catalyst therefor
IPC: C08F4/60
Filed: 1974-05-20
Abstract: 1467348 Aluminium magnesium alkoxides NIPPON OIL CO Ltd 20 May 1974 [21 May 1973] 22400/74 Heading C2C [Also in Division C3] Compounds of the formula are obtained by reacting with Mg(OR<SP>11</SP>) 2 , where the Rs represent hydrocarbyl groups, e.g. methyl, ethyl or isopropyl.
Patent GB-590077-A (GB)
Title: Improvements in steam boilers particularly of the lancashire or cornish type
IPC: F22B7/00
Filed: 1944-11-14
Abstract: 590,077. Steam boilers. THOMPSON (WOLVERHAMPTON), Ltd., J., and THOMPSON, W. J. Nov. 14, 1944, No. 22430. [Class 123 (ii)] [Also in Group XXII] In a Lancashire &c. steam boiler, the shell A and flues C respectively are made of sections a', a<2>, a<3> and c<1>, c<2>, c<3> having abutting end edges which are welded together. The end plates B, B<1> of the shell are similarly butt-welded to the corresponding shell sections a<1>, a<3>. The flues are preferably corrugated at C and are adapted to be inserted and removed through the front end plate B, and the ends thereof are riveted or welded within inwardly or outwardly directed flanges b, b' in the two end plates. As shown, the diameter of the end of the flue engaging the flange b, with the interposition of a packing ring D, is made equal to the maximum diameter of the corrugations C, the other end being somewhat reduced.
Patent GB-264202-A (GB)
Title: Improvements in and relating to talking machines
IPC: G11B19/28
Filed: 1925-09-09
Abstract: 264,202. Tudsbery, H. T. Sept. 9, 1925. Speed-regulating.-Relates to a modification of the means described in Specification 255,548 for effecting constant linear tracking speed which is adjustable, In those means, the tone-arm rocks a pivoted lever making cam engagement with another pivoted lever carrying the brake block of the governor, and adjustment is effected by movement of the pivots of the levers so that the cam engagement acts between different end positions. According to this invention the pivoted levers are mounted on fixed pivots and the tone-armactuated lever can be rocked thereon for adjustment ot the effective path of the cam independently of its movement by the tone arm Provision is also made for throwing the device out of action so that records requiring constant angular velocity may be played on the machine. As shown in Fig. 1, a lever 6 mounted on a pivot 7 and co-operating with a cam 9 mounted on a fixed pivot 10 is rocked from the tone arm 1 through a lever 3 pivoted to an arm 2 moving with the tone-arm and having a pin 5 bearing against the lever 6. A link 21 connects the lever 3 with a pointer 23 movable over a scale 24, whereby the position of the lever 6 can be adjusted to operate over a different part of the cam 9, thus varying the maximum and minimum speed of the turntable. The cam 9 is connected by pivot 11 with a bar 12 carrying the brake pad 13 controlling the usual governor 15, the other end of the bar 12 being pivoted to the usual adjustment pointer 17 movable over a scale 19. On moving the pointer 23 to its full extent in one direction an arm 27 integral therewith rocks the lever 6 out of operative engagement with the lever 3 and the machine then operates as a constant revolution speed machine. In a modification the piloted lever 35, Fig. 3, co-operating with the cam is actuated from the tone-arm 1 through a stiffly pivoted arm 29 which may be adjusted by means of a knob 33 over a scale 31 fixed to the tone-arm so as to vary the effective part of the cam engagement with the lever 35. Specification 247,810 is referred to.
Patent GB-240812-A (GB)
Title: Improvements in or relating to windows of vehicle doors
IPC: B60J1/17
Filed: 1925-09-10
Abstract: 240,812. Cousinard, A. A. Oct. 2, 1924, [Convention date]. Fastenings for sliding windows; clamps, eccentric.-A vehicle window and frame, of the kind which can slide independently on the door, are adapted to be secured together by a crank 2 pivoted to the sliding frame 1 at each side and adapted to engage beneath a catch 6 on the sash. When the crank is rotated over the wedge stop 4 on the door, the window sash is freed from the frame. The upward movement of the frame 1 is limited by the stop 7. The frame is frictionally jammed against the door by the chamfered edges 10, 11, on an attachment thereto and on the fixed frame. In a modification, the crank, by means of an eccentric stud, operates a wedge which engages between the chamfered edge of the sliding frame and the fixed guide to secure the frame.
Patent GB-1122718-A (GB)
Title: Process for tipping the ends of thermoplastic strip material
Inventor: BLOCK CHARLES
IPC: B29C65/74
Filed: 1967-05-16
Abstract: 1,122,718. Finishing edges of non-metallic sheet material. UNDERGARMENT ASSEMBLIES Inc. 16 May, 1967, No. 22597/67. Heading B5K. Enlarged tips on the ends of thermoplastic strip material S are provided by folding the strip S upon itself to form a plurality of superimposed layers, cutting through these layers to sever the strip and simultaneously fusing the layers together along the cut edges. The strip S, preferably of woven nylon, is fed from a roll 10 by a mechanism, including movable clamping jaws 12, 13, over an anvil 11 and is held by movable clamping jaws 14, 15. A rotating mandrel 16 is moved to position folding pins 17, 18 thereon one on each side of the strip S. After rotation of the mandrel 16 through 450 degrees, position C of Fig. 2, so that the strip S has been folded into five layers, a punch 19 with a chisel-like blunt end and operated by a solenoid or air piston is brought down with considerable force and velocity against the anvil 11 so that heat is generated by friction to cut and fuse the layers. The jaws 14, 15 are opened and the finished piece is ejected by an air blast or a mechanical sweep. The jaws 12, 13 close and advance the strip S after the mandrel 16 has been laterally retracted. As soon as the strip ends are released they flip over to the position of Fig. 7. In modifications, cutting and fusing are effected by high frequency dielectric electrodes, ultrasonic transducers or a heated bar.
Patent GB-599860-A (GB)
Title: Improvements in or relating to stoves
IPC: F24B5/06
Filed: 1945-09-03
Abstract: 599,860. Stoves. AKTIEBOLAGET SEPARATOR. Sept. 3, 1945, No. 22622. Convention date, Sept. 14, ] 944. [Class 126] In a cooking stove of the kind wherein the combustion products pass under hot-plates in the top plate of the stove, either directly, or through the oven-heating flues, to the outlet flue, a damper is associated with one of the hot plates so that when the hot-plate is rotated, the damper is operated either to close or open the direct path to the outlet flue. As shown in plan in Fig. 2, circular hot-plates 1, 2, 3 are provided, the hot-plate 1 being arranged directly over the grate. The hot-plates have depending projections on the undersides, and the projections of the plate 2 engage a rib 13 on a damper 9 having an arcuate vertical flange 10 and a horizontal foot 11 which rests on the floor of the flue. Rotation of the hot-plate 2 thus moves the damper 9 relatively to the opening 8 leading to the chimney flue 6. When the fire is first lit, the damper 9 is opened and the combustion products have a direct path to the flue 6. The damper 9 is closed, when the fire is satisfactory, to compel the gases to pass to the side and bottom flues 14 before passing through the smoke box 5 to the flue 6. Another damper 17 is regulable to apportion the flow of combustion products between the hot-plates 2, 3.