baber/WOPTO huggingface dataset:
Patent GB-402893-A (GB)
Title: Improvements in electrical make-and-break contacts and method of making same
IPC: H01H1/021
Filed: 1932-08-16
Abstract: In the manufacture of metallic make-and-break contacts made of tungsten and adapted for ignition systems in motor vehicles, the material is treated so as to increase the size of the surface granules or to reduce the amount of amorphous material between the granules, a single crystal or large granule in the limit, being employed as the contact.  Such single crystal contacts may be obtained by crystal growth around a single crystal wire so as to form a slug or bar which is cut into individual contact points, the latter being finally mounted on a suitable support, e.g. by copper-brazing in hydrogen.  According to one method of reducing the number of granules per unit area a rod or sheet of wrought tungsten is maintained, by electrical heating, under non-oxidizing conditions, e.g. in vacuo or in an atmosphere of hydrogen, helium, or argon, at a temperature slightly less than its melting-point for a short period of time and, before exposure to the air, is allowed to cool rapidly to a temperature at which serious oxidation on exposure to the air will not occur.
Patent GB-169589-A (GB)
Title: Improvements in printing machines
IPC: B41L19/00
Filed: 1920-08-06
Abstract: 169,589. Mathes, A. Aug. 6, 1920. Cylinder machines; stencilling; tripping and like arrangements.-A machine for type or stencil printing comprises an inclined frame 2 in which is mounted type, or which can be fitted with a zinc-covered wooden frame when used for stencil printing. An impression roller 19 is mounted in adjustable spring-pressed bearings 18<a> carried by a pair of connecting-rods 15, at the outer ends of which bearing-rollers 14 are fixed which engage the undersides of rails 13 as the roller 19 is moved in an upward direction by crank-discs 31, connecting-rods 35, and links 16. The sheets are registered against front stops 24 on an adjustable frame 23 normally held raised by a cranked lever 27 operated on by a lever 30. which is on a shaft 29 controlled by a roller 37 on a lever arm and bv a cam 38 on the shaft 6 of the crank-disc 31. The stops 24 are depressed slightly from their normal position by the roller 19, and at the end of the upward travel of the roller 19, the cam 38 permits the stops to fall and the sheet is delivered in a downward direction. The rollers 14 return over bridge pieces 12 of the frame, and a new sheet is positioned against the stops 24 before the roller 19 reaches the full line position. The frame 2 is mounted in the main frame 1 by means of slots 3 which take over a rod 4, and by means of pivoted arms 7 with rollers 5 which rest on the shaft 6, the position of the frame being controlled by set-screws 11 in lugs 10 arranged to press on the rod 4 and on the arms 7. When printing from type, an ink cloth is arranged above the type carried by the frame 2. When it is desired to print from a waxed sheet or stencil, this is fixed in a frame 40 which is mounted in bearings 42 on the frame 1. Tllis frame is moved to and from the frame 2 by means of a lever 45 acted on by a cam 47 and the hard rubber roller 19 is replaced by a soft roller which receives ink from rollers not shown and acts both as an inking and impression roller.
Patent GB-401456-A (GB)
Title: Improvements in and relating to the manufacture of chains
IPC: B21L9/00
Filed: 1932-08-18
Abstract: 401,456. Chains. SCHULL, F., 11, Holzstrasse, D³ren, Germany. Aug. 18, 1932, No. 23215. Convention date, Sept. 30, 1931. [Class 24.] Relates to the manufacture of chains of the type in which the links have a small eye and a large eye at right-angles to each other. In one form a piece of wire or strip 3, Fig. 5, is bent into a loop, the sides of the loop are brought together to form two eyes, Fig. 6, and the doubled part is bent over to bring the eyes into coincidence and form a small eye at right-angles thereto. The joins are soldered or welded, and circular wire when used is flattened during the making of the link. According to another method of manufacture, Figs. 18 and 19, a strip 11 is slit at both ends, the slits opened and formed into loops, and the blank folded about the solid part of the strips. Another method is shown in Figs. 15 and 16, in which a flat strip 6 is bent to form a small eye at the centre and the free ends are bent to form a large eye at right-angles. The eyes are joined by welding and the central portion of the strip is made wider and thinner than the remainder. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 401,633. This subject-matter does not appear in the Specification as accepted.
Patent GB-1261114-A (GB)
Title: Process for the electrolytic production of olefin oxides from olefins
IPC: C25B3/23
Filed: 1969-05-07
Abstract: 1,261,114. Electrolytic production of olefin oxides. FARBENFABRIKEN BAYER AG. 7 May, 1969 [9 May, 1968], No. 23225/69. Addition to 1,201,379. Heading C2C. [Also in Division C7] The parent invention wherein olefin oxides are electrolytically produced from olefins or halogenated monolefins, e.g. ethylene, propylene, butylene or allyl chloride, using a diaphragm cell with an aqueous electrolyte containing an alkali metal halide e.g. NaCl or KCl, from which some of the anolyte is removed and the electrolytically produced halogen or its hydrolysis products therein is reacted with an olefin outside the cell to form the corresponding halohydrin, which is subsequently reacted with the alkaline catholyte containing hydroxide ions to form the olefin oxide by dehydrohalogenation, the electrolyte being returned to the cell after separating the olefin oxide e.g. by distillation, is improved by introducing some of the anolyte removed from the anode zone (containing halogen or its hydrolysis products) before reacting with the olefin into the recycle electrolyte. The electrolyte passing through the anode zone may flow through the diaphragm into the cathode zone and return to the anode zone after the olefin oxide formed has been removed, or the halohydrin-containing anolyte may be reacted outside the cell with the catholyte.
Patent GB-832832-A (GB)
Title: Selector release arrangements in automatic telephone systems
Inventor: GERRITSEN FRANS JAN CHRISTOFFE
IPC: H04Q3/00
Filed: 1957-07-23
Abstract: 832,832. Automatic exchange systems. STAAT DER NEDERLANDEN TEN DEZE VERTEGENWOORDIGD DOOR DE DIRECTEUR GENERAAL DER POSTERIJEN, TELEGRAFIE EN TELEFONIE DE. July 23, 1957 [July 25, 1956], No. 23282/57. Class 40 (4). In a system in which a release signal is transmitted as a high-voltage pulse over one wire b of a two-wire junction, the signal is caused to pass to a release relay B via a non-linear resistance E and a high-speed relay HS which on operation disconnects the b-wire in the succeeding connection. The arrangement prevents the signal energy passing to the succeeding equipment, thereby ensuring a positive release of relay B and the prevention of unwanted effects in the succeeding circuits (such as tinkling of subscribers' bells, operation of call relay in a line of a PBX group, or premature release of a tandem connection). The advantages of the use of a non-linear resistor (which should be of the negative impedance type) instead of a cold cathode tube are also discussed. As shown, Fig. 4, seizure takes place by the operation of CA, followed by R, which causes a brief pulse to be transmitted along the a wire to operate relay B (winding (1)) (possibly through the intermediary of an impulsing relay, details of which are not shown). Relay B operates CB and locks itself. On release, CA falls back, followed shortly afterwards by R, so that a short pulse is sent through the right-hand winding of transformer TB. The resulting voltage in the lefthand winding superimposed on the exchange voltage is thus applied to the b-wire and this is sufficient to bring the non-linear resistance into a highly-conducting state to bring up HS which disconnects the succeeding part of the b-wire. Opposing winding (ii) of relay B thus receives full current to cause its positive release. The parallel capacitor is used as a reservoir of charge to ensure the release of B and the subsequent connection of rectifier D discharges the condenser to prevent any surplus of charge from reoperating B.
Patent GB-1148249-A (GB)
Title: A method and a device for the production of a slub yarn from linear synthetic polycondensation products
Inventor: FARACI GIORGIO
IPC: D01H5/36
Filed: 1967-05-19
Abstract: 1,148,249. Device for producing slub yarns. BEMBERG S.p.A. 19 May, 1967 [3 June, 1966], No. 23375/67. Heading B5B. Slub yarns are produced by varying the length of the path of travel of the yam between a feed roll and a draw roll, the yarn passing over and in contact with two or more snubbing pins in its travel from the feed roll to the draw roll whereby it travels in a zigzag path from the feed roll to the draw roll and the length of this path being varied by displacing the snubbing pins so that they alternately occupy a first position and a second position. The device may be provided with two parallel snubbing pins mounted on a support which is coupled to a control mechanism which rotates the support to and fro about an axis which is parallel to the snubbing pins, the snubbing pins being aligned on both sides of the axis of rotation. As shown in Fig. 1, two yarns 1 from a supply bobbin travel between driven feed rolls 3 and associated pressure rolls 4, from the feed rolls 3 through snubbing pin assemblies 7 and to draw-rolls 8 with their associated idler separator rolls 9. The assemblies 7 each comprise two snubbing pins 10 and 11 mounted on a plate 12 fixed to a shaft 13. The pins 10 and 11 are parallel to the shaft 13 and their axes if prolonged beyond the plate 12 would be on opposite sides of the shaft 13 and in the same plane as the axis of the shaft 14. Pinions 14 meshing with a straight toothed rack 15 are keyed to the shafts 13. The rack 15 is is adapted to be reciprocated longitudinally and is supported by guides 16 and 17. The helical springs 18 and 19 urge the rack 15 to the left. The rack 15 is coupled to an electromagnet 20 the coil of which is connected in an electric circuit 21 in series with a power source 22 and a switch 23. The switch 23 is closed against the pressure of a spring each time one of the pins 24 of the driven wheel 25 contacts the switch. The pins 24 are spaced unequal distances apart. When one of the pins 24 closes the switch 23 the electromagnet 20 is energized and the rack 15 is pulled to the right against the pressures of the springs 18 and 19 so that the plates 12 are rotated clockwise until the snubbing pins 10 and 11 attain the position shown in Fig. 1. The switch 23 then opens, the electromagnet 20 is no longer energized and the rack 15 is moved to the left by the springs 18 and 19. The plates 12 are thereby rotated counter-clockwise until the snubbing pins 10 and 11 reach the position shown in Fig. 2, the portion of the yarn wrapped about the snubbing pins 10 and 11 being thereby lengthened and the portion of the yarn between the feed and draw rolls stretched and attenuated to a greater degree than when the pins 10 and 11  are in the position shown in Fig. 1. The number of drawing zones having a toothed rack in common may be greater than two. The pulsegenerator actuating the switch may be a magnetic tape or a cosmic ray receiver instead of the wheel 25.
Patent GB-883989-A (GB)
Title: A method and a device for mixing flowing fluids employing stationary guiding means
IPC: B01F5/06
Filed: 1959-07-07
Abstract: 883,989. Mixing fluids in conduits. ONDERZOCKINGSINSTITUUT RESEARCH N. V. July 7, 1959 [July 8, 1958], No. 23379/59. Class 86. Streams of fluid are mixed by means of apparatus which divides each stream into an equal number of partial streams, which are recombined at junctions to each of which are partial stream from each main stream is led. In an example of the method in which two streams are each divided into two partial streams, the apparatus is built up of units 12 having long and short tongues, Fig. 2, which are formed from flat rectangular plates. Such units together with others which are their mirror images are interlocked to form an assembly. Fig. 3 (not shown) which is slid into a conduit of square cross-sections. The tongues of the units then constitutes vanes and walls defining passages for the fluid flowing through the conduit; certain spaces are totally enclosed by the long vanes and the outer walls of the conduit, see Fig. 4. The incoming fluid is divided by the partitions 19 units two main streams I, II which are divided at the edges of short vanes into partial streams a, b and c, d respectively. These are delivered to two junctions, each formed by the perpendicularly abutting edges of two vanes; one such junction can be seen at 21 in Fig. 4. Here a, c and b, d are combined and the combined streams again subdivided into partial streams a<SP>1</SP>, b<SP>1</SP>, and c<SP>1</SP>, d<SP>1</SP>. The process may be repeated any desired number of times and the partial streams then emited and discharged. Between two junctions the cross-sections of the passages vary from a rectangle through a square at opposite corners of the conduit to a rectangle with its long dimension perpendicular to the original direction.
Patent GB-1345310-A (GB)
Title: Selector switch mechanism and switch actuating mechanism therefor
IPC: H01H43/06
Filed: 1972-05-18
Abstract: 1345310 Valves GEMCO ELECTRIC CO 18 May 1972 [8 Feb 1972] 23381/72 Heading F2V [Also in Division H1] An actuating mechanism for selective operation of electric snap-action switches and/or air switches or the like comprises a disc-like circular cam member, as 56, having a plurality of reentrant recesses 68 uniformly spaced on its periphery, each recess having an arcuate axially extending surface encompassing an included angle greater than 180 degrees, and a plurality of switch actuating elements 72, 74 seated in selected recesses, each element having a cylindrical surface portion 76 conforming to the recess in which it is seated and a switch-engaging surface projecting radially beyond the periphery of the cam member, the cam member and/or the actuating elements being resiliently deformable to enable snap fitting insertion and removal of said elements radially, at least one of the elements having an integral circumferentially extending tapering portion 78 having an arcuate radially outer surface bridging the space between adjacent recesses and overlying an adjacent element to provide a continuous switch actuating surface extending circumferentially over said adjacent recesses. As shown a handle 54 operates a plurality of cam members 56, 58, 60, 62 whose actuating elements 72, 74 act respectively on electric switches 34, 36 and air switches 38, 40. The spindle carrying the cam members has locating detent means (Fig. 5, not shown) adjacent end plate 22. To avoid accidental operation the spindle may be axially slidable and have an extension (114, Fig. 7, not shown) projecting beyond end plate 22 to carry a disc (116) with apertures (120) co-operating with a pin (122) extending from end plate 22 such that the spindle must ne depressed axially against a coil spring (119) to move the disc (1/6) free of the pin (122) before it can be rotated. This axial movement may cause the periphery (118) of disc (116) to cam master electric and air switches (124 and 126) for deenergizing the selector switches 34, 36, 38, 40 during actual switching operations. A torsion spring (132, Figs. 9 and 10, not shown) may provide retraction from either side of a neutral position (Fig. 9) or only at angular end limits (Fig. 10). Indicators.-In the case of a three-position switch with a normal central position an indication of the direction of the last off-normal operation may be provided by a visible legendcarrying disc (152, Fig. 11, not shown) which is moved with lost motion and has two notches (154, 156) co-operating with a detent (158) such that it is held in a respective operated position when the switch spindle returns to normal. Interrupters.-Instead of manual operation by handle 54 the switch may be driven at a uniform speed by an electric motor, or step-by-step by a Geneva drive.
Patent GB-379503-A (GB)
Title: Improvements in or relating to footwear
IPC: A43B23/08
Filed: 1931-08-20
Abstract: 379,503. Boots &c. EVANS, W., Ashleigh Shoe Works, Brunswick Street, Leicester. Aug. 20, 1931, No. 23465. [Class 17 (ii).] A toe stiffener for Veldtschoen or other shoes having out-turned uppers consists of a layer or layers of pliable material, preferably leather, which is or are secured to the inside of the upper, preferably by rubber solution, before or after the upper is closed, but before the closed upper is prepared for lasting. The stiffener 1, Fig. 1, is crescent-shaped, is skewed all round its margin as at 5, and is secured to the upper with its concave edge to the rear. In securing the stiffener to the upper, rubber solution is preferably applied to the upper over a greater area than that covered by the stiffener, in order to render the rear edge 2a of the latter less liable to be caught by the toe of the wearer. The forward edge of the stiffener is out-turned and lasted with the upper 6 and is secured by the stitches 11, Fig. 8, which secure the upper to the insole 9. Specification 331,632, [Class 17 (ii), Boots and shoes, Construction of], is referred to.
Patent GB-256804-A (GB)
Title: Improvements in or connected with luncheon cases, canteens and the like
IPC: A45C11/20
Filed: 1925-09-21
Abstract: 256,804. Marris, G. S. Sept. 21, 1925. Luncheon and picnic cases.-A metal luncheon case, canteen, or the like is provided with means for securing in place various articles. Resilient extensible means are provided for holding in place articles of varying sizes such as a thermos flask 10 and a milk bottle 11, the means shown comprising a coiled spring 13 anchored to the case at 14 and connected by a chain 15 to a detachable hook fastening 16, 17. Cups 12 and other articles of uniform size are held by spring clips 19. The case is formed with wedge-shaped sides 8 which provide shoulders 8<a> adapted to support sandwich &c. cases 9. A base or holder 21 is provided in which a tin can rest, or the bottom plate of the tin may have projecting bayonet-catch portions adapted to be engaged with a base holder.
Patent GB-155387-A (GB)
Title: Improved means to prevent the unauthorized starting of internal-combustion engines
IPC: B60R25/00
Filed: 1919-09-24
Abstract: 155,387. Shrubsole, C. T. Sept. 24, 1919. Locks, screw-key. - The throttle valve in the induction pipe, Fig. 2, of an internalcombustion engine has on its lever C a staple which receives the bolt of a lock D. The key of the lock, Fig. 5, has a thread cut on its stem which enters the tumbler in the lock. Wings F on the stem fit the keyhole in the cover plate of the lock.
Patent GB-380913-A (GB)
Title: Improvements in radiators for heating buildings and the like
IPC: F24D13/04
Filed: 1931-08-20
Abstract: 380,913. Electric radiators. SPRINGUEL, F., 112, ChaussÚe de Vleurgat, Brussels. Aug. 20, 1931, No. 23501. [Class 39 (iii).] In a radiator heated by circulating hot water, supplementary electric heating is provided by electric heaters 14 arranged between two insulating sheets 15, and located in a hollow space 12 in a section 10 of the radiator. A cover 17 may be provided. Specification 291,545, [Class 39 (iii), Heating by electricity], is referred to.
Patent GB-354055-A (GB)
Title: Improvements relating to the glazing of show cases, shop counters and like cabinets and furniture
IPC: A47F3/12
Filed: 1930-08-06
Abstract: 354,055. Glazing showcases &c. GRANT, D. W., 14, Blinkbonny Grove, Craiglieth, Edinburgh. Aug. 6, 1930, No. 23504. [Class 20 (iii).] A corner-piece, for securing together the three unframed glass plates meeting at the corner of a showcase, shop counter, or the like, is adapted to fit over the edges of the plates and has a screw extending diagonally into the case for receiving a nut which serves to clamp the plates between the corner-piece and an internal resilient washer. As shown, a corner-piece 5, Figs. 1 and 3, preferably of metal, has flanges which extend over the meeting edges of three glass plates 4 of a show case. The corners of the plates are cut away to provide an aperture for a screw 8 which extends from the corner-piece diagonally into the case. The three plates are pressed firmly between the corner-piece and a resilient washer 10 by means of a nut 11. The washer may be of rubber, vulcanized fibre, or other elastic, resilient or compressible material. The screw may be adapted to carry an electric lamp fitting 12. Packing 15 of resilient material is inserted between the glass plates at the edges to render the joints dust-proof and airtight.
Patent GB-1451676-A (GB)
Title: Separation of substances from lqiuid media
IPC: A23F5/18
Filed: 1974-05-28
Abstract: 1451676 Reverse osmosis BATTELLE MEMORIAL INSTITUTE 28 May 1974 [29 May 1973[ 23657/74 Heading B1X A process for subjecting at least one substance from a liquid medium comprising the substance in dissolved form and at least one solvent for the substance, comprises introducing into the liquid medium at least one macromolecular substance capable of selectively fixing the molecules of the substance to be separated, the macromolecular substance forming, before and after fixing the molecules of the substance to be separated, a homogenous liquid phase in admixture with the liquid medium; allowing at least a substantial fraction of the molecules of the substance to be separated to be fixed by the molecules of the macromolecular substance: and passing the liquid medium thus obtained through an ultrafilatration or reverse osmosis membrane capable of retaining the associations of molecules formed between the macromolecular substance and the substance to be separated whilst allowing to pass at least the molecules of the solvent. The macromolecular substance may be a synthetic vinyl or acrylic polymer, dextran, pectic acid or a soluble protein such as albumen. The process is applicable to purification of beer, coffee, milk, or fruit juice; isolation of vitamins; recovering traces of catalysts; or purifying effluents.
Patent GB-1199375-A (GB)
Title: Preparation of 1,1,2,2-Tetrachloroethane by Oxychlorination of Dichloroethylene.
Inventor: ANTONINI ALBERT
IPC: C07C17/158
Filed: 1968-05-17
Abstract: 1,199,375. Oxychlorination process. PRODUITS CHIMIQUE PECHINEY - SAINT - GOBAIN. 17 May, 1968 [19 May, 1967], No. 23674/68. Heading C2C. 1,1,2,2 - Tetrachloroethane is obtained by passing a mixture comprising cis- and/or transdichloroethylene, HCl and an oxygen-containing gas through a reactor containing a fluidized-bed catalyst at 200‹ to 360‹ C. so that less than 70% of the dichloroethylene reacts, the catalyst being deposited on a carrier having a particle size of from 10 to 900 microns and an average specific surface area of more than 1 m.<SP>2</SP>/g., and at least partially separating the 1,1,2,2 - tetrachloroethane from the reactor effluent, unreacted dichloroethylene being recycled to the reactor. The catalyst support may comprise alumina, magnesia, graphite, activated carbon, aluminosilicates, and/or clays. The mixture passed through the reactor may also contain less than 2 moles of 1,1,2,2-tetrachloroethane per mol. of dichloroethylene. Trichloroethylene and pentachloroethane may be produced as by-products.
Patent GB-152325-A (GB)
Title: Improvements in or relating to cooling arrangements for dynamo-electric machinery
IPC: H02K9/06
Filed: 1920-08-13
Abstract: 152,325. Siemens - Schuckertwerke. Oct. 8, 1919, [Convention date]. Addition to 138,342. Armatures and field magnets, cooling; coils.- In a dynamo-electric machine in which the fieldmagnet coils are formed with internal concentric spaces 14 provided with distance-pieces having openings as described in the parent Specification, a stream of cooling-air is drawn through the machine in an axial direction bv a fan 13. The air spaces between the poles may he blocked up.