baber/WOPTO huggingface dataset:
Patent GB-719032-A (GB)
Title: Improvements relating to control systems for electric induction motors
IPC: H02P23/00
Filed: 1953-01-22
Abstract: 719,032. Control of A.C. motors; electromagnetic relays. HOOVER, Ltd. Jan. 22, 1953 [Jan. 26, 1952], No. 1920/53. Classes 38(3) and 38(5) A control system for a split phase electric induction motor having a pair of windings 3. 4 with angularly spaced axes has means-such as a manually operated switch 11- for connecting either winding at will across the A.C. supply 1, 2 whilst at the same time connecting the other winding, in series with a phase shifting impedance 30 and a plurality of contacts 17, 18; 17<SP>1</SP>, 18<SP>1</SP> across the supply, and further means-such as electromagnetically operated relays 7, 8-energized by the current flowing in one of the windings for opening the contacts after a period of delay. The relays 7, 8 offer a time delay to the operation of contacts upon energization of the operating coils but upon de-energization of the coils the contacts operate instantaneously. Thus in placing the arm of the switch 11 to contact 9 for forward running the winding 3 is placed in series with the operating coil 28 of relay 7 across the supply 1, 2 thus energizing relay 7. At the same time winding 4 is placed in series with a condenser 30, contacts 17<SP>1</SP>, 18<SP>1</SP>; 17, 18 (the latter two not yet having been opened) and energizing coil 28 across the supply. The motor starts up with winding 3 on the running winding and winding 4 as the starting winding. Upon energization of coil 28 a core 27 will begin to rise against a spring 32 and the oil in a cylinder 26 until when it reaches the top thereof, an armature 23 will be attracted to the core thus opening the contacts 17, 18 to remove the starting winding 4 from circuit. To reverse the motor the switch 11 is moved to contact 10. The armature 23 immediately resumes its normal position since coil 28 becomes de-energized, windings 3 and 4 reverse their roles thus braking the motor to a stop and accelerating it in the reverse direction until when the core 27<SP>1</SP> reaches the limit of its travel, armature 23<SP>1</SP> is attracted, contacts 17<SP>1</SP>, 18<SP>1</SP> open and winding 3 now the starting winding is removed from circuit. A copper member 29 forms a short circuited coil to prevent chatter of the relays.
Patent GB-161330-A (GB)
Title: An improved larder, pantry or store cupboard
IPC: A47B77/16
Filed: 1920-01-21
Abstract: 161,330. Sprake, G. Jan. 21, 1920. Cupboards. -A larder, pantry, or store cupboard having double walls 2, 4 is provided with air inlet and outlet openings 7, 8 in the lower and upper ends of the outer wall and with inlet openings 30 at the lower end of the inner wall, so as to cause air to circulate in parallel through the inner chamber and the spaces between the walls. The a i r - collecting chamber 28 at the upper end of the larder may be provided with an opening 31 leading to a ventilator. The larder is lined with metal or other suitable material and may be subdivided and provided with shelves 15, 25, meat-hooks 14, drawers or bins 20, and a revolving egg-stand 26, as shown in sectional elevation in Fig. 1.
Patent GB-545339-A (GB)
Title: Improvements in and relating to gas combustion heat radiating devices
IPC: F24C3/04
Filed: 1941-02-13
Abstract: 545,339. Radiator stoves; gas burners. RADIANT HEATING, Ltd., and DOCKING A. Feb. 13, 1941, No. 1987. [Classes 75 (i) and 126] The combustion products from a primary heater comprising a refractory block 1 supplied with a completely combustible gaseous mixture pass to a secondary heater 10 comprising an inclined sheet metal chamber or duct secured to bracket 11 on the top of the primary heater casing 6. The gaseous mixture supplied by pipe.9 to a chamber 8 at the rear of the block 1 passes through perforated china-clay or sillimanite cylinders 5 to outwardly tapering combustion tunnels 4 comunicating with a recess 1b below the heater 10. The rear wall of the heater 10 is preferably insulated at 12. In another construction the combustion tunnels are formed by cylindrical china-clay tubes fitted in openings in the face of the block 1.
Patent GB-285367-A (GB)
Title: Improvements in optical projection apparatus
IPC: G09F19/18
Filed: 1928-01-23
Abstract: 285,367. Zeiss, C. [Firm of]. Feb. 14, 1927, [Convention date]. Elements moving always in one plane, rotating; optical-projection apparatus, applications of.-In optical-projection apparatus in which transparancies mounted on an intermittently rotated carrier are brought in turn into the light beam, the transparency being projected is rotated so as to produce a rotating image on a cloud. Transparencies in the form of stencils 9 are mounted in circular frames 7 having a peripheral groove which engages rollers 11, 12 on a disc 1 having apertures 2. The rollers 12 are spring-pressed against the frames 7, and at the junction of the pivoted arms 13 on which they are mounted are guide rollers 15. A moving chain 16 passing round the frames 7 and rollers 15 rotates the disc, to change the exhibited transparency, when the disc is released, a ball bearing 5 being provided to ensure that the rotational friction of the disc 1 is less than that of the frames 7. When the disc is held, however, the frames are all rotated. each about its own axis. The holding and releasing means for the disc 1 comprise a spring-pressed pawl 2R which engages notches 29 in the rim of the disc. The pawl is depressed at intervals by projections 24 on a continuously rotating worm wheel 23.
Patent GB-269679-A (GB)
Title: Improvements in or relating to electrical connecting devices
IPC: H01T13/04
Filed: 1926-01-25
Abstract: 269,679. Bourne, F., and Bourne, C. A. Jan. 25, 1926. Cable terminals.-A connecting-device for making electrical connection, such as a cable to a sparking plug, comprise two prongs 10, 11, Fig. 1, at least one of which terminates in a hook which is directed away from the other prong. The prongs are made from a, single piece of spring wire, and the root is either attached to a sleeve 15 or is bent to the skeleton sleeve form shown in Figs. 8 and 9. To connect the device to a bar &c. 16, it is formed thereon as shown in Fig. 3, and then turned through an angle of 108‹ to the position shown in Fig. 5. An extension of the sleeve 15 may be bevelled at 22 so that the core of a cable can be wedged behind the prongs 10, 11, and the root end of the device may be enclosed in an insulating sleeve.
Patent GB-623361-A (GB)
Title: Improvements in or relating to a colloidal aqueous dispersion of a resinous copolymer of melamine, urea and formaldehyde
IPC: C08G12/38
Filed: 1945-01-26
Abstract: A colloidal cationic dispersion of a partially polymerized melamine-urea formaldehyde condensation product is prepared by forming an acidified aqueous solution of the substantially unpolymerized condensation product containing at least 0.7 mols. melamine for each 4 mols. of urea and 1-4 mols. of combined formaldehyde for each mol. of melamine plus urea, the acid producing a pH of 0.25-4 when measured with 10 per cent solids concentration, and ageing the solution to bring about polymerization of the particles of condensation product until they have dimensions within the colloidal range.  The products can be deposited from the solutions by absorption, adsorption, electro-deposition, ion-exchange, drying or precipitation. Preferably a mineral acid, other than sulphuric acid is employed, but acetic or other weak organic acid may be employed.  The ingredients including the acid may all be reacted together, or the aqueous condensation product may be acidified, or methylol urea and methylol melamine solutions may be mixed and acidified, or a melamine salt may be reacted with urea and formaldehyde. Ageing is preferably performed at 25-30 DEG  C., but may be done under reflux.  Concentrated acids, alkalies and electrolytes such as aluminium sulphate or sodium chloride precipitate the solutions.  The colloidal solutions may be added to paper pulp at the beater stage, the negatively-charged particles being deposited on the cellulose particles in the pulp.  They may also be used to impregnate textiles, e.g. for flame-proofing (see Group VIII), or as binders for materials such as starch, dyestuffs, or water-repelling agents.  They may also be used as laminating adhesives or to form films.  In examples (1) urea, melamine and formaldehyde were condensed by heating on a water bath and the solution acidified with HCl; (2) methylol urea and methylol melamine solutions were mixed and acidified with HCl; (3) is similar to (1) and describes the use of the solutions in paper-making (see Group VIII); (4) Example 4 describes the preparation of a number of colloidal solutions using different acids and different concentrations.
Patent GB-540213-A (GB)
Title: Improved apparatus for extracting metal bodies from webs of textile materials
IPC: B03C1/28
Filed: 1940-02-02
Abstract: 540,213. Magnetic separator for removing metals from textiles. TAYLOR & SON, Ltd., F. W. Feb. 2, 1940, Nos. 2114 and 2115. Convention dates, April 19, 1939 and Nov. 10, 1!939. [Classes 72 and 82(i)] [Also in Group XXXV] Metal particles are extracted from webs of textile materials by feeding the web past a magnet which withdraws the particles from the web. The web 2 passing over a drum 8 is fed on to the card comb 3 from which it is detached by a comb 4, and passes on to an endless belt 5' over which is arranged a magnet 9 vertically adjustable above the web. The metal free web passes between calendering rolls 6. The magnetic separators may comprise side walls 10, 11 of soft steel connected by a plate 13 of non-magnetic alloy consisting of lead 50 per cent. tin, 49 per cent. and phosphor-tin 1 per cent. Inside the casing are series windings 14, the rounded edge 16 of the separator being in close proximity to the web.
Patent GB-800112-A (GB)
Title: A device for the addition of volatilisable metals to cast iron and steel
Inventor: FISHER PHILIP ANDREW
IPC: C21C1/10
Filed: 1956-01-23
Abstract: 800,112. Addition of volatile metals to . iron or steel. MAGNESIUM ELEKTRON, Ltd. Jan. 15, 1957 [Jan. 23, 1956], No. 2166/56. Class 72 Volatilizable metals are added to iron or steel by means of a device comprising a plunger consisting of a billet of the volatilizable metal having its top and sides sheathed in iron or steel, the sheath being a pot - shaped member having a rod attached to and extending through the tops the rod having a radially extending anchor device inside the sheath, and the volatilizable metal filling the space between the rod and the sheath. As shown, a mild steel tube 10 has a closing plate 11 welded thereto and a threaded bolt 14 passes through a stud 13 welded to the plate 11. The volatilizable metal 12, e.g. magnesium or a rare earth metal, is cast into the tube and is anchored therein by a washer 15 welded to the rod 14. The end 16 of the volatilizable metal may be coated with a refractory material or a steel plate may be tack welded to the end of the tube. The device may be used for the addition of magnesium or cerium to cast iron in the production of spheroidal graphite cast iron.
Patent GB-794069-A (GB)
Title: Improved collapsible tube for adhesives
Inventor: SMYTH DORIAN MONTAGUE
IPC: B65D51/22
Filed: 1956-01-23
Abstract: 794,069. Stoppers. LAMBART & SMYTH, Ltd. Nov. 19, 1956 [Jan. 23, 1956], No. 2210/56. Classes 66 and 125(3). A collapsible tube 1 with nozzle 3 has a metal sealing diaphragm 3b which is pierced, when the tube is required to be opened, by a screw eye 2 having a self-tapping thread 2a, the screw eye forming a stopper for re-closure of the tube.
Patent GB-446540-A (GB)
Title: Improvements in or relating to the production of plastic materials, coating materials, cement materials, spatula materials and the like
IPC: C04B28/26
Filed: 1935-01-23
Abstract: A filler for paints, coating-compositions, and the like consists of water-soluble alkali silicates, acid, and a schist-like, flaking material.  The silicate should be rich in SiO2, the molecular ratio to Na2O being preferably 4 : 1.  The acid is preferably humic acid in the form of brown coal ground to pass a sieve of 16000 meshes per sq. cm.  Schist-like materials comprise slate clays, shales, argillite, porphyroids, porphyry schists, streaked porphyry, crystalline schists, gneiss micaceous schists, talc schists, chlorite schists, hornblende schists, serpentine schists.  About 15 per cent of the silicate, and 1 per cent of acid are added to the schist, and the whole is ground to pass a sieve of 4900 meshes per sq. cm.  Sulphur may also be added in proportion of 1--3 per cent, the grinding then being performed advantageously at a temperature corresponding to the melting point of sulphur.  Numerous applications of the filler are described.  40 parts of blown petrol pitch, 10 parts of brown coal tar pitch, and 50 parts of the filler gives an acid and alkali resisting cement, which may be thinned with benzol for a coating composition.  The filler may also be employed in rubber latex, chlorinated rubber, natural and artificial resin compositions.ALSO:A filler for paints, coating-compositions, cements, spatula compositions, and the like consists of water-soluble alkali silicates, acid, and a schist-like, flaky material.  The silicate should be rich in SiO2, the molecular ratio to Na2O being preferably 4 : 1.  The acid is preferably humic acid in the form of brown coal, ground to pass a sieve of 16,000 meshes per sq. cm. Schist-like materials comprise, slate clays, shales, argillite, porphyroids, porphyry schists, streaked porphyry, crystalline schists, gneiss, micaceous schists, Talc schists, chlorite schists, hornblende schists, serpentine schists.  About 15 per cent of the silicate, and 1 per cent of acid are added to the schist, and the whole is ground to pass a sieve of 4900 meshes per sq. cm.  Sulphur may also be added in proportion of 1-3 per cent, the grinding then being performed advantageously at a temperature corresponding to the melting point of sulphur. Numerous applications of the filler are described.  40 Parts of blown petrol pitch, 10 parts of brown coal tar pitch, and 50 parts of the filler gives an acid and alkali resisting cement, which may be thinned with benzol for a coating composition.  The filler may also be employed in rubber latex, chlorinated rubber, natural and artificial resin compositions.
Patent GB-413377-A (GB)
Title: Improvements in shedding mechanism for circular looms
IPC: D03D37/00
Filed: 1933-01-24
Abstract: 413,377. Circular looms. BRITISH CELANESE, Ltd., and JABOULEY, J., 22, Hanover Square, London. Jan. 24, 1933, No. 2269. [Class 142 (ii).] Shedding-mechanism for circular looms comprises means to press on the warps and deflect them from their normal path, locking means for retaining the warps in their normal path and selector means adapted to free some of the warps so as to permit them to move under the action of the pressing means and thereby form a passage for the shuttle. In the construction shown in Figs. 2 and 7, three banks of healds 19, having eyes 20 for the reception of the warp threads and butts 22, 23, 24 for engagement with cams on a relatively moving cam ring 28, are supported by rings 16, 17 on spacing pieces 13 mounted between the reed dents, the ring 16 co-operating with notches 16<a> in the healds to lock them against longitudinal displacement. On depression of a butt by a cam such as 29, the appropriate heald is rocked clear of the locking ring 16 and thereby rendered free to be moved, with its associated warp thread 33<y>, into the position shown in Fig. 7 by means of a presser wheel 31 which is constantly in engagement with the warps. The shedding wheels 31 and the cams 29 are arranged slightly in advance of each shuttle and the former are preferably fabric covered as described in Specification 413,379 to minimize wear on the threads. In a modification Fig. 11, the heald releasing cams are replaced by a series of notched wheels 38, which release only those healds not falling within the notches. In a further modification the warp pressing means comprises a notched wheel 40, Fig. 13, adapted to deflect warps not falling within the notches, so that only warps which are both freed from the locking means and deflected by the wheel are separated from the remaining warps. The wheel 40 is provided with projections 42 to prevent threads engaged by the periphery of the wheel from slipping into the notches. Specification 396,757 also is referred to.
Patent GB-237858-A (GB)
Title: Improvement in razor blade holders for stropping purposes
IPC: B24D15/10
Filed: 1925-01-26
Abstract: 237,858. Holtzman, J., and Seaman, H. C. July 31, 1924, [Convention date]. Razors, safety. A holder in which the blade to 'be stropped is held between a pair of bladeholders pivoted centrally of a tubular handle so that the support can be turned to either side of the pivot between the spaced side portions of the handle, has a blade-holder provided with a flexible guard extending adjacent a cutting-edge of the blade and normally lying substantially in the plane thereof but adapted to bend away from the edge when the blade is being stropped or sharpened. As shown a pair of blade-holders 25, 35 are pivoted at 26 between the sides 21 of the handle 20 and have flexible guards 28, 38 respectively connected to the members bv flexible arms 27, 37. One member 35 carries locking ears 40 which extend through the perforations in the blade 45 and openings 30 in the member 25 and the ends of the members are formed with depressions 29, 39 which frictionally engage and lock the blade-holders together.
Patent GB-113009-A (GB)
Title: Improvements in Buildings Formed of Concrete Slabs or Blocks.
Inventor: CROMWELL BEN
IPC: E04B2/28
Filed: 1917-02-16
Abstract: 113,009. Cromwell, B. Feb. 16, 1917. Double walls.-In a building formed of concrete slabs or blocks, both the walls and the columns or piers are built simultaneously, and have the central air space 3 continuous throughout, the blocks 5, 6, 7 for the piers being bonded into the wall in every alternate course, connected with the inner sections of the walls and piers by ties 8 as shown in Fig. 3. The floor 9, formed of reinforced concrete, overlaps the full thickness of the wall, thereby creating a substantial tie and forming a belt course 10 round the building.
Patent GB-486331-A (GB)
Title: A new or improved lamp carrier
IPC: B60Q1/26
Filed: 1937-01-26
Abstract: 486,331. Lamps. PUCKERT, E. W. Jan. 26, 1937, No. 2330. [Classes 75 (iii) and 75 (iv)] A parking light is carried by a tubular arm 2 having a jaw 5 adapted to be clipped over the edge of the window 1 or screen of an automobile and a bead 10 for engaging in the recess 13 in the window frame. As shown, the arm 2 and the tubular lamp casing 3 are formed of rubber, red and white glasses 6, 7 being sprung into recesses in the casing. The casing 3 may be modified for use as a reading lamp by a passenger in the front seats.
Patent GB-538066-A (GB)
Title: Improvements in or relating to pyrometers and other measuring instruments of precision
IPC: G01J5/48
Filed: 1940-02-07
Abstract: 538,066. Indicating-apparatus. STEVENSON, H. A. Feb. 7, 1940, No. 2344. [Class 106 (iv)] A pyrometer device comprises a casing 1 in which a pyrometer 3 is housed so that the scale 4 is viewed at the front wall of the casing, a light source 13 at the rear of the case, and a mirror 5 on the pointer axis of the pyrometer galvanometer from which a pencil of light from the source 13 is reflected on to a second mirror 19 at the rear and from thence to a magnified " light scale " at the front of the casing. Both the rear mirror and the source of light are adjustably mounted in the casing while the ight scale is divided into a lower ground glass part 10 on which an illuminated arrow appears and an upper graduated and illuminated part 8.
Patent GB-1515616-A (GB)
Title: Marker controlled telecommunication systems
IPC: B65D47/10
Filed: 1976-01-21
Abstract: 1515616 Automatic exchange systems SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 21 Jan 1976 [12 Feb 1975] 2361/76 Heading H4K A telecommunication system includes two groups of n subscribers selectively interconnectable via two concentrators CE joined by m (less than n) connection lines, each concentrator having an associated marker M which can receive and transmit signals representing connection criteria from and to, subscriber line circuits AL, connection line circuits TL and a common channel signalling line L, each marker comprising a plurality of processors one of which is a fault unit SA adapted to receive and transmit service messages from and to the common channel signalling line. As described the subscribers may be data subscribers and the connection lines are carrier frequency transmission lines. The scanners CC function to scan line circuits AL for calling and dialling signals and to check that called lines are free. The setting up stages of each call are controlled by the connection control processor SC. A connection line circuit processor GT sequentially tests the connection line circuits for busy free condition and transmits and receives connection criteria (answering, release etc) thereto and therefrom. When scanner CC detects a new call, processor SC if it receives from processor GT the address of a free channel reserves that channel and forms a message including the identity of that channel and the identity of the called subscriber, applies to a message co-ordinator CM for permission to use the common signalling channel and upon receiving the same transmits the message via an interface unit IM over the common signalling channel to the remote marker and upon receiving an acknowledgement transfers control of that connection to a signalling processor ST. At the remote end the connection control processor with the aid of the scanner CC determines the busy/free state of the called line. If it is busy a busy message is returned over the common signalling channel, while if it is free the connection line circuit control processor transmits data to the called end over the reserved connection line. Each marker also includes a fault processor SA adapted to transmit and receive fault data for service personnel to and from the common signalling channel.
Patent GB-265214-A (GB)
Title: Improvements in and relating to drip catchers for bottles
IPC: B65D23/06
Filed: 1927-01-27
Abstract: 265,214. Faulhaber, J. Jan. 27, 1926, [Convention date]. Drip - retaining devices.-A drip catcher for bottles comprises a tubular top part a, Fig. 2, of a diameter slightly greater than that of the neck d of the bottle, and a flaring bottom part b conforming to the tapering part f of the bottle. The parts are made of absorbent material, such as cellulose, or blotting paper, and are integrally united. An annular channel may be formed for preventing the liquid from flowing out when the bottle is tilted. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modified form, Fig. 5, (Cancelled) off non-absorbent material such as celluloid, cloth, rubber, leather or the like, and with an inverted annular channel c projecting beyond the tubular part a, so as to form a trap for liquid when the bottle is tilted. This subject-matter does not appear in the Specification as accepted.
Patent GB-717852-A (GB)
Title: Improvements relating to the production of sulphide coatings on steel
IPC: C23C22/34
Filed: 1952-01-29
Abstract: Continuous, closely-adherent, sulphide coatings are formed on chromium-containing steel surfaces by treatment with an aqueous solution of pH less than 6.5, containing a sulphur compound which will provide sulphide ions at the metal surface and containing flouride ions.  A solution containing nitric acid, sodium sulphite and potassium fluoride may be used; or the sulphide ions may be provided by the use of sulphides, thiosulphates or organic sulphur compounds; sulphuric acid may also be present.  Details are given of the relationship between pH values, fluoride ion contents, operating temperatures and times of treatment.