baber/WOPTO huggingface dataset:
Patent GB-501771-A (GB)
Title: Improvements in or relating to extensible and collapsible ladders
IPC: E06C5/28
Filed: 1937-09-17
Abstract: 501,771. Extension ladders. BOOR, L.M . Sept. 17, 1937, No. 25317. [Class 20 (ii)] A lazy-tongs ladder comprises locking means which maintain it in the expanded position, the locking means consisting of a notched latchbar 5 pivoted to the end of one rung 3 carried by the levers 1 of the lazy-tongs, and adapted to engage over the opposed rung 4 when the ladder is extended. The bar 5 may be of such a length that it always rests upon the rung 4, and engages it in the notch 9 of the latch-bar by gravity, or the latch-bar may be positively actuated by a slotted link 7 engaging a pin on one of the lazy-tongs levers and pivoted to an extension 6 of the latch-bar. The ladder is released by extending the ladder slightly to a greater extent so that a ridge 11 on the latchbar rides up on the rung 4 and then by collapsing quickly to prevent re-engagement. of the notch with the rung. Latches may be provided at the opposed ends of adjacent rungs throughout the length of the ladder. The ladder may be provided with an upper handle 12 and a hook 15, and a non-slip pad at its lower end. Levers 13 pivoted to opposed links and provided with a handle 14 may be used to raise the ladder for extension.
Patent GB-255283-A (GB)
Title: Improvements in drives for carding machines for preparing wool or like fibres
IPC: D01G15/36
Filed: 1925-10-12
Abstract: 255,283. Schwalbe, C. R. Oct. 12, 1925. Carding-engines.- The cylinders f, g, h, Fig. 1, of a set of carding-machines arranged in series are driven by gearing i, k, from a single shaft a running longitudinally of the engine and preferably operated by a motor b. If the carding-machines are arranged side by side the common driving shaft extends transversely. The shaft a is preferably arranged under the floor. The common shaft may be driven by a belt and gearing from a line shaft, and the condensing system may be driven directly from this train of gearing.
Patent GB-492561-A (GB)
Title: Improvements in or relating to furnace for melting fine and granular substances
IPC: C03B5/12
Filed: 1937-09-20
Abstract: 492,561. Melting - furnaces. CHEMISCHE STUDIEN - GES. UNIWAPO GES. Sept. 20, 1937, No. 25449. Convention date, Nov. 4, 1936. [Class 51 (ii)] In a furnace for melting finely divided and granular materials such as mineral phosphates, glass, enamel &c. which tend to assume a pasty condition before melting, two or more inclined surfaces e, e<1> or surface sections are arranged between a preheating chamber g and hearths d, d<1>, for collecting the molten material, and are charged successively from the preheater. The rate of charging is so adjusted that the material will melt and flow from an inclined surface before the next batch is fed on to it. In the apparatus shown the preheater is of rotary tubular form, and the successive feeding to the two inclined surfaces is effected by reversing the direction of rotation.at intervals. Alternatively an inclined plate mounted to rotate about a vertical axis may be used to direct the material in succession to two or more hearths. In another arrangement two heating- chambers each with a surface e and a hearth d are arranged at right-angles, and pushers are provided for feeding the material successively thereto. A number of inclined surfaces may be juxtaposed to form a pyramid, or combined into a cone. The upper portions of the surfaces e, e<1> are preferably more steeply inclined than the lower portions.
Patent GB-361958-A (GB)
Title: Improvements in thermionic valve circuits
IPC: E04B1/30
Filed: 1930-08-26
Abstract: 361,958. Valve detecting circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, KINMAN, T. H., Ladbroke House, Bilton Road, and LUCAS, G. S. C., 75, Eastlands Road, both in Rugby. Aug. 26, 1930, No. 25454. [Class 40 (v).] A high - frequency detector comprises a valve V with at least one screening-grid S between a control grid G and an anode A, the circuit of which includes both highfrequency Ir and lowfrequency impedances Ia, and the operating potentials Ba applied to the anode and screen grid are of such value that high-frequency oscillations applied to the control grid cause the potential of the anode to oscillate at high-frequency about the upper bend in the anode current-anode voltage curve. The valve may be a pentode. Reference has been directed by the Comptroller to Specification 105,081, [Class 40 (v), Wireless signalling &c.].
Patent GB-803404-A (GB)
Title: Dyestuffs of the naphthalene-monoazo-pyrazolone series and metal complexes thereof
IPC: C09B45/16
Filed: 1956-08-21
Abstract: 1 - Amino - 2 - ethoxy - naphthalene - 6 - sulphonamide and 6-sulphonic acid di-b -hydroxyethylamide are made by acetylating 1-amino-2-ethoxy-naphthalene, treating the product with chlorosulphonic acid to yield the corresponding 6-sulphonyl chloride which is reacted with ammonium carbonate or diethanolamine to give the appropriate 6-sulphonamide, the required products being obtained by hydrolysis of the acetylamino group. 1-Amino-2-methoxy-naphthalene-6-methylsulphone is made by treating 1 - acetylamino - 2 - methoxynaphthalene - 6 - sulphonyl chloride with sodium sulphite in alkaline solution, isolating the sodium sulphinate thus formed, treating it with methyl iodide and hydrolysing the product to the free amine.  The products are dyestuff intermediates (see Group IV (c)).ALSO:The invention comprises dyestuffs free of sulphonic and carboxylic acid groups of formula <FORM:0803404/IV (c)/1> and their 1,1- and 1,2-chromium, nickel and copper complexes where R1 is alkyl, amino, mono-, di-, hydroxy- and dihydroxy-alkylamino, morpholino and piperidino, R2 is alkyl, R3 is alkyl, carbalkoxy and carbonamide and R4 is alkyl and hydroxy- and cynalkyl and monocyclic aryl radicles the alkyl groups containing no more than 3 carbon atoms.  The dyestuffs may be made in conventional fashion by coupling appropriate naphthalenic diazo compounds and pyrazolones and metallizing the product preferably in an organic solvent. Metallization may be effected in substance or on a substratum. R1 is specified as methyl, ethyl, methyl-, ethyl-, dimethyl-, diethyl-, hydroxyethyl- and dihydroxyethyl-amino, R2 as methyl and ethyl, R3 as methyl, ethyl, carbomethoxy and ethoxy and R4 methyl, ethyl, propyl, isopropyl, hydroxy- and cyan-ethyl, phenyl, 31-sulphamyl-, 21,51dichloro-, 31-N,N1-dimethylsulphamyl -, 41 - N - hydroxyethylsulphamyl and 21 - methoxy - 41 - sulphamylphenyl.  The metal dyestuffs dye wool and nylon in red shades and are preferably used in a dispersed form and may also be used to colour silk, leather, cellulose esters and ethers and synthetic nitrogenous fibres.  In examples illustrative of the preparation of the dyestuffs and their use in dyeing processes 1-amino-2-ethoxy-6 - naphthalene - sulphonamide and dihydroxyethyl - sulphonamide and 1 - amino - 2 - methoxy - 6 - naphthalene - dimethyl - sulphonamide and methyl sulphone are the diazo components used together, with 1-(31-sulphamyl- and 2,51-di-chlor - phenyl) - and (b  - hydroxyethyl) - 3-methyl - 5 - pyrazolones as coupling components.
Patent GB-517250-A (GB)
Title: Improvements in electrical systems of remote control
IPC: H02J13/00
Filed: 1938-09-01
Abstract: 517,250. Signalling over power circuits. GENERAL ELECTRIC CO., Ltd., COLLYER, J. E., SMART, N. C., and CHUBB, A. A. Sept. 1, 1938, No. 25567. [Class 40 (iv)] [Also in Group XXXVIII] In a system for the remote control of apparatus over a polyphase power network, the apparatus is operated by single-phase control currents injected into one of the high-tension phase leads. Apparatus may be selectively controlled by the use of control currents of different frequencies. As shown, the extra H.T. network is connected to the L.T. distribution systems P<SP>1</SP>, P<SP>2</SP>, P<SP>3</SP>, N through H.T. feeders F\ F<SP>2</SP> and control currents generated by the generator G are superposed on the feeders by transformers IA, IB. When it is desired to control particular apparatus associated with the L.T. system, the generator is operated to give a current of a frequency characteristic of the control to be effected and the switch M is closed to superpose current through transformer IA on one phase lead. The current flows only through phases W 1 , W 2 of the power transformer T<SP>1</SP> and causes operation of control devices connected to phases P<SP>1</SP>, P<SP>3</SP>. The control current also operates a relay C which is responsive to all the control current and after a predetermined time-interval sufficient to ensure operation of the controlled relays, operates contacts C2, C3,which connect the generator to transformer IB to superpose current and cause operation of the devices connected to phase P<SP>2</SP>. In modification the relay C may connect the generator to the transformers IA, IB in rapid alternation or alternatively the relay C may be replaced by a time switch. Specification 491,980, [Group XXXVII] is referred to. According to the Provisional Specification the control currents may be applied in opposite phase to two wires of the transmission line simultaneously.
Patent GB-1523200-A (GB)
Title: Method and apparatus for feeding cartons
IPC: B65G59/06
Filed: 1977-04-26
Abstract: 1523200 Dispensing cartons R W J CLARKE and R J D MILLER 26 April 1977 [21 June 1976] 25635/76 Heading B8U Cartons 1 are disposed in a column 2, all of the cartons being in a non-upright condition, and the lowermost carton is pushed by a ram 5 to a position over an air jet 7 such that when the ram 5 is retracted it triggers a switch 11 which actuates an air blast from the jet 7 of sufficient intensity and duration to blow the carton to an upright condition. On the next forward stroke of the ram 5 to remove the then lowermost carton in the column 2 the upright carton is pushed by projections 6 of the ram 5 to a filling position beneath a discharge shoot 8. When the column 2 is empty cartons are then fed by a second ram 10 from a second column 3 across into the first column 2.
Patent GB-232041-A (GB)
Title: Improvements relating to the separation of organic compounds from each other
IPC: C07C7/00
Filed: 1923-10-15
Abstract: Organic compounds such as these, and having a specific gravity between 1 and 2 are separated from one another according to their different capacities for being wetted by water, by agitating the mixture of compounds with water, whereby one compound or set of compounds sinks and another compound or set of compounds is caused to float.  The separation may be improved by adding to the water a small quantity of a colloidal substance such as albumin, saponin, glue, gelatin, humus, gall, sulphite cellulose lye, molasses, or animal or vegetable refuse.  For example mixtures of anthracene and alizarin, or of azoxybenzene and carbazole, may be so separated.  A compound such as naphthalene may be similarly separated from an oil of specific gravity greater than 1, the naphthalene being deposited free from the oil which is obtained as an emulsion.
Patent GB-296903-A (GB)
Title: Improvements in means for attaching bottles to display cards
IPC: G09F5/04
Filed: 1927-09-29
Abstract: 296,903. Hallworth, H. Sept. 29, 1927. Cards for displaying.-Bottles 1 are attached to a display card 2 by metal strips 4, each of which is passed round the neck 5 of a bottle and its ends inserted in one of a horizontal row of circular holes 3 and bent back behind the card. The strip 4 is sufficiently wide to cut into the material of the card around the hole 3.
Patent GB-704483-A (GB)
Title: Improvements in and relating to electric starting motors for internal combustion engines
IPC: F02N11/08
Filed: 1951-11-02
Abstract: 704,483. Starting prime movers. SCINTILLA, Ltd. Nov. 2, 1951 [Sept. 20, 1951], No. 25690/51. Class 38 (4). [Also in Group XXVII] In an engine starting motor system of the kind in which the motor is first slowly rotated in the reverse direction whilst the starting pinion is brought into engagement with the engine, after which the motor is fully energized for turning the engine in the running direction, the initial reverse rotation is effected solely by an auxiliary field winding which subsequently has its energization reversed to assist the main field winding and which, when starting is completed, forms a short-circuited winding during disconnection of the motor from the starting battery, thereby reducing the effective inductance of the main field winding and minimizing wear of the switch contacts. In the arrangement shown, closure of a starting button 12 energizes contactor 10, which causes a solenoid 9 to advance the pinion 4 into engagement with the engine and simultaneously energizes the motor for reverse rotation under the influence of auxiliary field 14 (over contacts H, K, L, M). When the pinion is fully engaged the solenoid closes main contacts 6, S, T, opens contacts L, M and closes contacts V, X, whereby the motor is energized for turning in the proper direction under the joint action of the main field 13 and the auxiliary field 14 which is now reversely energized and in shunt with the armature. The bridge 15 for the contacts V, X, is loaded by a spring 18, so that these contacts remain closed for a time whilst the main starting contacts 6, S, T are opening upon release of button 12, during which time the auxiliary winding is short-circuited by the armature 2 and reduces the effective inductance of the main field 13 and minimizes sparking at the main starting contacts.
Patent GB-201119-A (GB)
Title: Process for separating the vapours or volatile liquids from gases containing them
IPC: B01D53/14
Filed: 1922-09-22
Abstract: 201,119. BrÚgeat, J. H. July 21, 1922, [Convention date]. Volatile liquids, recovering. - In recovering volatile liquids for example in separating ether vapours from air or separating benzol, &c. from lighting gas or coke-oven gas, hydrides of naphthalene, such as tetralene of decalene, are used as absorbent liquids or are added to the tar oils, vaseline oils, cresols, &c. ordinarily used as absor. bent liquids. The use of naphthalene dissolved in tar oils, &c. is referred to.
Patent GB-389481-A (GB)
Title: Apparatus for emptying centrifuges
IPC: B04B11/08
Filed: 1931-09-14
Abstract: 389,481. Centrifugal machines. BURGESS, A. F., 10, New Court, Lincoln's Inn, London.-(Akt.-Ges. der Maschinenfabriken Escher, Wyss, et Cie ; 19, Hardturmstrasse, Zurich, Switzerland.) Sept. 14, 1931, No. 25716. [Class 23.] Deposited solids are cleared from a centrifuge drum 2 by means of a blade 6 in a carrier 5 which can be moved radially in the drum by pressure applied to a piston 10 in a cylinder 11. The scraped material drops into a discharge shoot 12 by which it passes out of the drum. To prevent the material from sticking to the carrier 5 a tapping member 13 is arranged to deliver a series of blows on the carrier. The member 13 is mounted in the hollow crosshead 7 and is operated by compressed air admitted through the flexible pipe 14 and regulating device 15. The movement of the scraper may operate a valve to throw the tapper into action when the scraper is operative. In modifications, the tapper may be operated electrically or mechanically and it may operate on the discharge shoot. In the modification shown in Fig. 5, the discharge shoot 12 is suspended by springs 25 from a stationary box 26. A rod 27 is pivoted to the end of the shoot and is oscillated by means of a lever 28 and a cam 31 on the end of the centrifuge 1, so that the shoot is shaken to and fro. Vibration may be obtained by lining parts of the apparatus with elastic material 36. The curved wall 35, Fig. 6, is provided with such lining to receive the impact of the discharging solids.
Patent GB-1511295-A (GB)
Title: Method and apparatus for the automatic handling of sections of elastomeric material
IPC: B65G1/10
Filed: 1975-06-17
Abstract: 1511295 Conveying tyre sections INDUSTRIE PIRELLI SpA 17 June 1975 [28 June 1974] 25771/75 Heading B8A Tyre sections G at spaced intervals on a belt conveyer R are fed on to a first conveyer consisting of spaced belts 26 (Figs. 4 and 5), from which the sections G are picked up by faster moving spaced belts 44 interleaved with the belts 26, and which rise upwards through the latter, the sections G thereby being deposited on a storage shelf of a multi-shelf wheeled carriage D. As each shelf of the carriage D is filled, a carriage E on which the belts 26 are mounted, is raised by the action of a motor 21 and counter weights 20. Since belts 15 forming the conveyer R, are mounted on a roller 16 common to the belts 15 and 26, the upstream end of the conveyer R is displaceable together with the downstream end of conveyer belts 9 feeding the conveyer R. The successive movement is taken up by a displaceable pulley system 12 around which the belts 9 pass. The belts 44 are mounted on a carriage S which has a vertical movement relative to the carriage E by the action of cranks carried by displaceable levers 38, 38. A roller 49 (Fig. 5) carrying the downstream ends of the belts 44, is carried by a wheeled truck 43. This is movable on tails of the carriage S under the action of a cylinder 51, so as to extend the belts 44 over the shelf of the carriage D, and by retraction of the truck 43 to deposit the sections on the shelf. Take-up of the belts 44 is provided by a pulley system 47 slidable on a member 48. As each shelf of the carriage D is filled, further shelves are successively folded down into operative position by their engagement by a magnet 54 (provided the shelves are made of ferrous material) reciprocable by the action of a cylinder 52. The sections G are fed successively to the belts 9 by a rotary member 2 (Fig. 2). This has diametrically opposed shallow concave surfaces 5 on which a single section G is held by clamps 6 after it position has been sensed by an element 8.
Patent GB-176818-A (GB)
Title: Improvements in surface condensers
IPC: F28B1/02
Filed: 1920-09-07
Abstract: 176,818. Marks, E. C. R., (Ingersoll- Rand Co.). Sept. 7, 1920. Surface condensers.-The apparatus described in Specification 122,106 is modified by spacing the tubes 4 more closely near the steam outlet 3 than near the inlet 3 and by fitting movable partitions 22, 32 in the headers 6, 7 to vary the number of tubes included in each zone according to the demands on the condenser. An air cooler 36 may be connected to the condenser, the air pump connection 38 being at the top. Guide plates 33, 37 distribute the steam and gases more evenly. As shown in Fig. 1, three zones are formed; through the uppermost, comprising the top three rows of tubes, high velocity cooling water passes from the inlet 8 to the outlet 15. Through the second zone comprising the second three rows, low velocity water passes from the inlet 9 to the outlet 15. Through the lowest zone water passes from the inlet 9 to the outlet 16. The positions of the partitions 22, 32 may be varied, and in the extreme position high velocity water may circulate through all the tubes, partition 22 being at the bottom, or with that partition at the top, low velocity water passes through all the tubes. The positions may be varied automatically according to the temperature of water issuing from the zones by regulating an electric motor geared to the screw shafts 24, according to the resistance of thermal elements situated in the header 7.
Patent GB-887400-A (GB)
Title: Process for the preparation of boron trichloride
IPC: C01B35/06
Filed: 1960-07-25
Abstract: Boron trichloride, BCl3, is produced by passing Cl2 through a molten mixture of boric anhydride, B2O3, carbon, and sodium tetra <PICT:0887400/III/1> borate, the tetraborate being 5-20% of the mixture, and the C and B2O3 being in molar ratio 3:1.  The reaction is effected at 800 DEG -1100 DEG C.  Amixture of coal, B2O3, and borax in externally-heated steel vessel 1 is melted and dehydrated in a stream of inert gas, e.g. N2, entering through pipe 5. When fluid agitators 2, 3 are operated and Cl2 is introduced through, and preheated in, pipe 5, BCl3, CO, and 1-2% phosgene pass out through pipe 7 to separation.  Boric acid and coal are continuously introduced into vessel 1 to replace reactants consumed, the boric acid being dehydrated to B2O3 in the molten mixture, in the same way as the borax was dehydrated to sodium tetraborate initially.
Patent GB-205521-A (GB)
Title: Machines for cutting cake, soap, and other adhesive substances
IPC: C11D13/22
Filed: 1923-10-16
Abstract: 205,521. Schell, J. H. Oct. 16, 1922, [Convention date]. Stream-cutting machines.-A machine for cutting cake, soaps, &c. into slices comprises a series of spaced cutting-members carried by a bridge to which members are imparted an up-and-down and a swinging motion, the material being advanced intermittently on the rearward movement of the members. As shown, knives 22 are adjustably carried at 23 by a bridge 17 rigidly secured to pillars 16 mounted upon eccentrics 13 carried by a main shaft 12, the bridge being also pivotally connected to links 20 anchored at 21 to the frame 1. The knives work through a slotted table 2 and the material is held, during cutting, by grippers 34 carried by rods 31, 32 and pulled downwardly by springs 39 against cams 14. The material is advanced along the table 2 between guides 11 by a plate 10 connected by arms 9 to a wooden roller 8 loosely journaled in slotted levers 6 mounted on a shaft 3 carrying a ratchet wheel 40 which is turned by a pawl 48 on a rod 47 reciprocated by an eccentric 46, on the shaft 12. A pawl 53 engaging a second ratchet wheel 41 holds the shaft 3 after each movement of the rod 47. When the plate 10 has advanced sufficiently towards the cutters the pawls 48, 53 are disengaged by a toothed sector 44, Fig. 3, and the plate is returned by a weighted lever 5; the sector 44 is then released by lifting the pawls 48, 53 by raising, by hand, the bars 47, 54 against the action of springs 49, 56.
Patent GB-282927-A (GB)
Title: Improvements in and relating to the manufacture of mixed phosphatic fertilisers, and the recovery of ammonia from industrial gases
IPC: C05B7/00
Filed: 1926-10-19
Abstract: 282,927. Hollings, H., and Gas, Light, & Coke Co. Oct. 19, 1926. Drawings to Specification. Manures.-Phosphatic fertilizers containing ammonia, prepared by absorbing ammonia from coal gas, coke oven gas, etc., in phosphoric acid, superphosphate of lime, ground mineral phosphate mixed with phosphoric, sulphuric, nitric or hydrochloric acid, &c. are treated with air or inert gases such as flue gas to remove loooselycombined ammonia which would be lost on exposure of the material. The ammonia may be removed from the current of gas by absorption in fresh phosphatic material. Cyclic processes are described in which ammonia-containing gas is passed in succession through two absorbers, and when the material in the first absorber is saturated, flue gas is passed through this absorber and then through an absorber containing fresh material. The treatment of coal gas is carried out at temperatures of about 40‹ C. to minimize condensation of water, naphthalene and hydrocyanic acid. Absorbent or distributing material such as peat, peat moss, sewage sludge, &c may be added before or after treatment of the phosphatic material. Other fertilizing ingredients, such as potash, may also be added.