baber/WOPTO huggingface dataset:
Patent GB-1458489-A (GB)
Title: Electric lamp manufacture
IPC: H01J5/32
Filed: 1975-02-19
Abstract: 1458489 Electric incandescent lamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 Feb 1975 [22 Feb 1974] 6990/75 Heading H1F [Also in Division C1] In an electric lamp sealed by pinch seal 8 of substantially rectangular cross-section, the pinch is formed with grooves 9 along two edges whereby burrs 4 formed along said edges on withdrawal of compression member 5 remain within the rectangular circumference of the pinch. Grooves may also be formed along edges C (Fig. 4, not shown) although no burrs occur there.
Patent GB-741317-A (GB)
Title: Improvements relating to spinning processes for the production of high strength artificial silk from cuprammonium-cellulose solution
IPC: D01D5/14
Filed: 1953-03-13
Abstract: <PICT:0741317/IV(a)/1> In the production of high-tenacity artificial silk from cuprammonium cellulose solutions by funnel stretch-spinning, the filaments in the liquid state are drawn out to not less than twice their final cross-sectional area in a funnel, into the upper part of which water is introduced at a rate sufficient to keep it full, and through which the water passes in the same direction as the filaments, the filament substance having at the end of the funnel a viscosity of 50,000-60,000 poises at the temperature prevailing at that end.  Thereafter the filaments pass into a vessel through which a bath-liquid passes at a temperature higher than that of the water passed through the funnel, and the filaments are stretched in this vessel by drawing them over a series of guide rods in such a manner that the time, in seconds, which the filaments require in order to coagulate from the condition where the filament substance has a viscosity of 50,000-60,000 poises up to the blue-filament condition, divided by the ratio of the filament cross-sectional area before and after the stretching, is at least 0.3.  A formula is given showing the relationship between the distance from the spinning nozzle at which the viscosity of the filament substance is 50,000-60,000 poises, the filament withdrawal speed and the titre of the individual filaments.  The tension under which the filaments are stretched should not exceed 50 dyn./sq. cm. As shown, cuprammonium cellulose spinning solution is extruded from a spinneret 1 at a withdrawal speed of about 10 m./min. to form liquid filaments in a funnel 2, which is 10 cm. long and through which water at 15 DEG  C. flows downwards at a rate of 3-5 c.cs. per second into the vessel 3 containing a precipitation bath. Precipitation liquid enters the vessel 3 at the inlet 4 and overflows from the top of the vessel, the temperature in the latter being maintained at 21-22 DEG C.  The mean speed of the filaments in the funnel 2 is 7.5 m./min., the length of travel of the filaments from the 50,000-60,000 poises condition to the blue filament condition is 8 cm. and the time required for the filaments to travel this distance is 0.6 second. The filaments are stretched in the vessel 3 by their passage over guide-rods 5, which are so arranged that the angles between the paths of the filaments become progressively more acute as the filaments travel down through the vessel.  The filaments then pass into a discharge tube at the bottom of the vessel 3, in which tube the filaments are finally coagulated.  The outlet of the discharge tube is constricted to a diameter of about 3-4 mm. to limit the rate of flow of bath liquid through the tube.  After leaving the tube, the filaments are deflected into a horizontal path in the usual manner by means of a rod, de-acidified and wound.
Patent GB-1533483-A (GB)
Title: Brake-force distributor
IPC: B60T8/18
Filed: 1976-02-23
Abstract: 1533483 Differential braking; imbalance indicators ALFRED TEVES GmbH 23 Feb 1976 [25 Feb 1975] 07011/76 Heading F2F A proportioning valve and dual circuit brake imbalance warning assembly comprises a stepped proportioning valve piston 9 subject on an end 11 to a spring force and the first circuit inlet pressure at a port 5 in opposition to the outlet pressure at port 7 acting on the end 23 to control a closure valve element 25, and a switch actuating piston 12 which is subject on one end to the first circuit inlet pressure and on the opposite end to the second circuit pressure at a port 6, is engageable with stops 15, 16 of the stepped piston and has ramps at each end for actuating a radial switch operating pin 19.
Patent GB-374489-A (GB)
Title: Improvements in or relating to servo brake operating mechanism for motor vehicles
IPC: B60T13/24
Filed: 1931-03-06
Abstract: 374,489. Fluid-pressure brakes. CLAYTON DEWANDRE CO., Ltd., Titanic Works, Lincoln, and PAYNE, M., 50, Hook Road, Surbiton, Surrey. March 6, 1931, No. 7088. [Class 103 (i).] In fluid-pressure,brakes for motor vehicles the power actuating device is carried by a pivotal link element of the transmission, one relatively movable part of this device being fixed to the link and the other relatively movable part being attached to a fixed support through a link which serves as a force-transmitting element and not as a support for the power actuating device. The brake piston 1 is fixed by a rod or cable 2 to a fixed part of the chassis and works in a movable cylinder 3 connected to the brake transmission 4. The cylinder carries a valve housing 7 containing a hollow suction valve 8 seating on a port 9 and controlling the suction connection 10 and a valve 11 seating on the open end of the valve 8 and controlling the atmospheric ports 12. The valve 8 is normally maintained closed and the valve 11 open by springs 13, 15a respectively. The valve 11 is closed and the valve 8 opened to apply the brakes by a rod 14 and a pedal 15. If the pedal is then maintained stationary the consequent movement of the cylinder recloses the valve 8 and maintains the brakes applied. The rod 14 is provided with a stop 16 which is adapted to engage an abutment 17 to form a lost motion which when taken up allows the brakes to be applied by foot pressure on the pedal. The rod 14 slides in a cylindrical guideway and forms with the connection of the cylinder to the transmission, supports for the self-contained power unit which takes the place of one of the pull rods of the transmission.
Patent GB-659503-A (GB)
Title: Improvements in and relating to cyclones
IPC: B62M1/18
Filed: 1949-03-15
Abstract: 659,503. Centrifugal separators. BUREAU VAN TONGEREN N.V. March 15, 1949, No. 7100. Convention date, March 16, 1948. [Class 23] A cyclone separator 11 and a dust collector 13 are provided with a chamber 15, in between, having tangential outlet slots 16 and a bottom opening 17 leading to a horizontal baffle 18. Vanes 19 cause gases returning from the collector 13 to be reversed in direction before rising through the opening 17. A second series of vanes may be provided inside the vanes 19 to again reverse the flow of gases. Reversing the flow causes further deposition of dust from the gases which are thus cleaner when passing through the opening 17. A cone 12 may be interposed between the parts 11, 13. The latter may discharge into a larger collector by way of a valve.
Patent GB-830867-A (GB)
Title: A process for the production of transparent synthetic linear polyamide filaments
IPC: D01F6/60
Filed: 1958-03-05
Abstract: Transparent synthetic linear polyamide filaments are produced by melt-spinning the polyamide into a quenching bath of a hydrocarbon liquid or chlorinated hydrocarbon liquid maintained at a temperature between -5 DEG  C. and room temperature.  The hydrocarbon liquid may be tetra- or deca-hydronaphthalene or a high-boiling petroleum spirit and the chlorinated hydrocarbon liquid may be chlorobenzene, tri- or perchlorethylene or, particularly, carbon tetrachloride.  In an example, a e -caprolactam polymer melt is spun as a monofil into carbon tetrachloride maintained at a temperature of 0 DEG  to -5 DEG C., and p  thereafter is stretched to form a filament 0.40 mm. in diameter. The filaments may be used as fishing lines and for the construction of fishing nets.
Patent GB-794933-A (GB)
Title: Improvements in or relating to metal tubes or metal sheaths of electric cables
Inventor: PENROSE JAMES RONALD
IPC: B21D15/06
Filed: 1956-03-07
Abstract: 794,933. Making corrugated tubing. PIRELLI-GENERAL CABLE WORKS, Ltd. Nov. 16, 1956 [March 7, 1956], No. 7141/56. Class 83 (2). [Also in Groups XXVIII and XXXVI] In making circumferentially or helically corrugated metal tubing or cable sheathing wherein the minimum interior diameter of the corrugations lies between 0.75 and 0.88 of the maximum exterior diameter, the pitch of the corrugations is between 0.15 and 0.25 of said maximum diameter, and the thickness of the wall is between 0.005 and 0.02 of said maximum diameter, measured in inches, + 0.0025 inch, one or more corrugating tools are rotated around the axis of a plain metal tube or cable sheath to exert pressure on the external surface thereof to produce corrugations of the dimensions specified. The radius of the working portion of each corrugating tool lies between 0.03 and 0.05 of the maximum exterior diameter of the corrugations. Specifications 720,650 and 736,704 are referred to.
Patent GB-1375391-A (GB)
IPC: D06M13/08
Filed: 1972-03-17
Abstract: 1375391 Treating spandex yarns CLUTSOMPENN INTERNATIONAL Ltd 17 March 1972 [18 March 1971] 7168/71 Heading D1P The tendency of spin finished elastomeric polyurethane yarns to pull out and run back on cutting a fabric containing the yarns and other yarns, is reduced by extracting the fabric pior to cutting, with an organic solvent in which the spin finish is soluble so that less than 1/3, and preferably less than 1/5 of the orginal finish on the elastomeric yarn immediately after spinning is retained. Where the other yarn is a spun synthetic yarn, the extraction may be such as to leave less than 1/3, preferably less than 1/5 of the total spin finish present on both yarns. The extraction may be effected by tumbling the dyed or grey state fabric, loosely folded in a net bag, in the solvent at 25‹-30‹C, spinning to remove the solvent, and drying in hot air. The spin finish may be silicone based and the solvent may be perchlorethylene, trichlorethylene, carbon tetrachloride, or petroleum ether. The extraction may be preceded by a scour involving tumbling the bagged fabric in a mixture of perchloroethylene and an emulsifier, or by an aqueous scour.
Patent GB-448001-A (GB)
Title: Improved machine for dressing revolving grinding wheels
IPC: B24B53/08
Filed: 1935-03-08
Abstract: 448,001. Trueing grinding wheels. ATKINS, H. F., Hill Royd, Steeple Gidding, Peterborough. March 8, 1935, No. 7231. [Classes 60 and 124] In a machine for dressing a grinding-wheel 1 to a shape which is a replica of a former 7 traversed by a stylus 11 coupled to the dressing- tool 3, means are provided for compensating for the wear of the tool comprising inclined, conical or like contacting surfaces on the stylus or former, or on both, and means to adjust them relatively to one another to vary the path of the tool. In the machine shown, the stylus 11 is of conical form and the former 7 has an inclined contacting edge and is adjustable on slides 8 bv a micrometer head 10 to move the point of contact along the conical stylus, thus allowing the path of the tool to be varied in accordance with the size to which it has worn. In the apparatus shown, two saddles 5, 9 are given proportional horizontal motions by link connections to a lever 17. The former carries cross slides 4, 13 coupled by a lever 14 pivoted at 15 and carrying respectively the tool 3 and the stylus 11, whilst the saddle 9 carries the former 7. By suitably proportioning the connections to the levers 14, 17, the tool is caused to move in a path which is a reduced copy of the former. Another machine is described in which the former is stationary, and the wheel is dressed to a section of the shape and size of the former.
Patent GB-157010-A (GB)
Title: Improvements connected with lubrication systems
IPC: F16N27/02
Filed: 1920-03-10
Abstract: 157,010. Sheppee, F. H., and Jowitt, S. G. March 10, 1920. Addition to 155,515. Moving - chamber apparatus.-In a lubricator furnished with a rotary plug or disc valve d as described in the parent Specification, lubricant is displaced from a recess c in the valve by a conical or dome-shaped member b secured to the end of a spring a.. The member b has a central stem as shown, or is formed as a cap over the end of the spring, or it may have a plain end secured to the spring by solder or other means.
Patent GB-756473-A (GB)
Title: Improvements in or relating to radio receivers comprising a directional antenna
IPC: H01Q1/24
Filed: 1954-03-12
Abstract: 756,473. Snap-action switches; switches held set and freed mechanically. PHILIPS ELECTRICAL .INDUSTRIES, Ltd. March 12, 1954 [March 17, 1953], No. 7297/54..Class 38(5) [Also in Group XL(c)] In a radio receiver, operation of a switch controlling the aerial connection in one direction is effected by rotation of a tuning control knob, operation in the other direction being alternatively effected by depression of a latching member or by rotation of a further control knob. In a first embodiment, Fig. 1, depression of a push button 21 causes the switch 1 to be changed over, the switch being held in this position by a projection 33 on a bell-crank lever engaging a projection 32 on the shaft 22. Simultaneously a toggle lever carrying a brake pad 31 snaps over under the action of a spring 30 and engages a flywheel 13. The flywheel 13 is formed upon a sleeve 6 which is normally rotated with the shaft 5 to which the tuning control knob 3 is attached, being coupled thereto by a pin 12 attached to the sleeve 5 and fitting within a V-shaped slot in the sleeve 6. When, however, the.push button 21 is in its depressed position and the flywheel 13 engaged by the brake pad 31, an attempt to rotate the knob 3 causes the pin 12 to ride up along the V-shaped slot thus causing the projecting end of the shaft 5 to project still further and disengagt the bell-crank lever from the catch 32, the push button 21 and the switch 1 being consequentially restored to their original positions. In a second embodiment, Fig. 2, two substantially identical rotary control systems are provided. With the apparatus in the position shown. rotation of the knob 3<SP>1</SP> initiates the operation of the spring loaded toggle device 40, thus changing over the switch 44, disengaging the braking pad 42 from the flywheel 13<SP>1</SP> and causing it to engage with the flywheel 13.
Patent GB-372465-A (GB)
Title: Improvements in typewriting machines
IPC: B41J29/02
Filed: 1931-03-09
Abstract: 372,465. Typewriters. JAMES, R. W. 11, Queen Victoria Street, London.-(Reming, ton Typewriter Co. ; Ilion, New York, U.S.A.) March 9, 1931, No. 7311. [Class 100 (iv).] Type-lever machines.-Framework particularly for a portable machine comprises three castings secured to side-plates, one casting forming a top plate which supports parts of the actions and has depressed pockets for the ribbon spools, the second casting supporting the type-levers and other parts of the actions, and the third casting forming a back-plate. The framework shown in the Figure is arranged to carry the actions described in Specification 372,477 and each comprising a type-lever 15 gearing with a slide 28 connected by a bell crank 46 and link 47 to a key-lever 48, a weight 18 being connected to a rocking arm 34 and to a toggle 12, 13 which is connected to the typelever. The top plate 2 comprises a slotted segment 9 having depressed pockets 7 for the ribbon spools, the walls of the pockets having slots for guiding the ribbon. The togglelinks 12 are pivoted on the segment, and the type-heads normally rest on a pad 20 supported by the segment. A pad 17 for arresting the weights 18 is arranged in a depression 16 in the top plate. A yoke 21 on the segment carries an aligning-guide 22. The type-lever support 3 is formed with slotted pivot-segments 25, 33 for the type-levers and rocking arms. The slides 28 rest on a plate 29 secured to the.support and are guided by the segment 25. Brackets 51 on the support carry a universal bar 52, and a pivot rod 49 for the key-levers. The bell-cranks 46 are pivoted on hangars 45 having lugs 43, 44, engaging slots in a plate 41 secured to lugs 39 on the support. The top plate and the typelever support are inclined at an angle of about 8‹ to the horizontal. The back-plate 4 is formed with strengthening ribs and with guides 56 for the carriage shift frame.
Patent GB-552872-A (GB)
Title: Improvements in or connected with skid fenders for use in the launching of ships life boats
IPC: B63B23/18
Filed: 1942-05-30
Abstract: 552,872. Launching lifeboats. HUNT, J. B. May 30, 1942, No. 7366. [Class 115] An' adjustable gunwale fitting to carry securing means for lashing a skid fender into a lifeboat comprises an inverted L-shaped member 5 the upper limb of which rests on the top of the gunwale 4 and on the side limb of which is slidably mounted a part 8 which is adjusted to the depth of the gunwale. The upper limb may comprise two overlapping portions adjustable to the width of the gunwale. Specifications 550,208 and 550,209 are referred to.
Patent GB-822169-A (GB)
Title: An improvement in or relating to tractor-trailer combinations
Inventor: ASHFIELD HERBERT EDWARD
IPC: B60D1/46
Filed: 1955-03-15
Abstract: 822,169. Vehicle couplings. BROWN TRACTORS (ENGINEERING) Ltd., D. June 15, 1956 [March 15, 1955], No. 7463/55. Class 103(5) A trailer is provided with frames h, k interconnected at their apices by a post j and connected by a universal joint p to a tractor link q and by a vertical pin n to a cross member joining the ends of links b to which the lift links d are attached.
Patent GB-142615-A (GB)
Title: Improvements in or relating to fabrics for airships
IPC: D06M13/188
Filed: 1919-03-25
Abstract: A process for preparing impervious fabric for airships consists in treating a fabric of cotton or other fibre having cellulose as its principal constituent by suitable chemical means to convert the cellulose partly or wholly into cellulose acetate, then treating with softening agents, such as triacetine or castor oil, and finally calendering.  Any ordinary method of acetylation may be used.  For example, the fabric is treated for several hours, at a temperature below 50 DEG  C., with double its weight of a mixture consisting of 5 to 6 parts acetic anhydride, 4 to 5 parts glacial acetic acid, and 1 part fused zinc chloride.  After treatment with the softening agent and calendering, the fabric may be coated with cellulose acetate &c. dope, and varnished.
Patent GB-622524-A (GB)
Title: Improvements relating to pneumatic motors and to packing rings for the pistons thereof
IPC: F16J15/32
Filed: 1947-03-18
Abstract: 622,524. Piston packing. TRICO PRODUCTS CORPORATION. March 18, 1947, No. 7495. Convention date, March 30, 1946. [Class 122(i)] A piston packing ring 13 of rubber or similar material, which may be impregnated with lubricant, has its peripheral surface formed with circumferential ridges spaced apart axially by intervening grooves to hold the lubricant against the cylinder wall, the grooves being preferably of such a depth as to support capillary attraction. In an air operated motor the packing ring ridges are flexible, approximately 0.01 inches in height and have their top portions only in sliding contact with the cylinder wall.
Patent GB-1094748-A (GB)
Title: Production of silicon-iron sheet stock
Inventor: CARPENTER VICTOR WILLIAM
IPC: C22C38/02
Filed: 1965-02-22
Abstract: Silicon-iron sheet is pickled subsequent to any hot-rolling step, and is then decarburized in a wet atmosphere at 1200 DEG -1500 DEG F., followed without any intervening surface treatment by annealing in a dry non-decarburizing atmosphere at 1400 DEG -1900 DEG F., at least one of the heat-treatment steps being carried out with the sheet in the form of an open coil. Decarburizing may be carried out for 1 to 8 hours in a hydrogen-bearing atmosphere having a dew-point of 90 DEG \sB 20 DEG F., and annealing in a hydrogen-bearing atmosphere of dew-point not higher than 50 DEG F. for 1/2 to 3 hours. When the same furnace is used for both treatments the dry atmosphere should be introduced before the temperature is raised for the anneal.  The sheet may finally undergo a flattening anneal at 1300 DEG -1500 DEG F.
Patent GB-1364365-A (GB)
Title: Treatment of knitwear and/or hosiery of synthetic materials
IPC: D06C5/00
Filed: 1972-02-18
Abstract: 1364365 Treating knitwear and hosiery mounted on forms KARL FISCHER APPARATE-U ROHRLEITUNGSBAU 18 Feb 1972 [2 March 1971] 7574/72 Heading D1L In a method for treating knitwear and hosiery mounted on forms the articles to be treated are pulled over rotatably and pivotally mounted form members and run through a wet and/or heat treatment plant with the form members rotating intermittently about their longitudinal axis, the form members being pivoted in their horizontal position during some of the stages of the treatment plant and in their vertical position during the remainder of the stages of treatment. The method is particularly suitable for the finishing treatment of stockings or pantyhose of synthetic material which are treated with their form members horizontal during washing, dyeing rinsing and spin-drying and vertical during placing and removing of the stockings and also during plastification, finishing and drying stages. A transporting unit for carrying out the method comprises a trolley 4 having wheels 5 running on guide rails 9 disposed throughout the treatment plant, stabilising rollers 6 journalled in the upper part of the side of the trolley 4 to cooperate with guide face 10 mounted on the frame 11 which also carries the guide rails 9 and transporting belt 13 running on rollers 12 mounted in frame 11 and having sprockets 14 for engaging in openings (7) (Fig. 2, not shown) in the side of the trolley to move the trolley through the treatment plant. The trolley 4 comprises a carrier 18 pivotable about trunnion 8, a roller 19 journalled in portion 18b to engage a rail 20 mounted on the frame 11, a form member 22 mounted on shaft 21 having drive wheel 24 mounted at the other end thereof and spray plate 25 mounted to protect the bearings 23 from treatment fluid applied to knitwear or stockings mounted on form member 22. Rail portion 20 is mounted on frame 11 so as to twist between the positions illustrated in Figs. 7 and 8 and thus cause the form member to pivot between its horizontal and vertical position. Drive wheel 24 is connected to means (not shown) for rotating the form member 22 during treatment. The rotation of the form member may be braked when necessary by electromagnet 25' acting on magnetisable protective plate 25.