baber/WOPTO huggingface dataset:
Patent GB-243416-A (GB)
Title: Improvements in water heating and steam generating boilers
IPC: F23C1/00
Filed: 1924-08-01
Abstract: 243,416. Bennis, A. W. Aug. 1, 1924. Steam - generator furnaces; l i q u i d , gaseous, and pulverulent fuel furnaces.-Water heating or steam-generating tubes 2 are subject to the direct heat on one side solely from a grate 1 and on the other side from one or more j jets 4 of liquid, gaseous or pulverized fuel arranged in the roof of the furnace, while the remaining tubes 16, 14, 11 of the boiler are located above in the combined path of the gases of combustion of both heating systems. The grate 1 is thus partly protected by the tubes 2 from the intense heat in the combustion chamber 5 above the tubes. One or more pipes 18 of the heating system may be situated at the sides of the grate 1; these, together with the pipes 2 are connected between headers 8 through which the heated water or steam circulates from drums 9, 10 and headers 13, 15. The gases of combustion pass by a flue 19 to an economizer 17. A double or multiple pass may be provided for the gases.
Patent GB-477841-A (GB)
Title: Improvements relating to the dressing and filling of fabrics
IPC: C08L61/26
Filed: 1936-07-02
Abstract: Textile fabrics are impregnated with hardenable aminotriazine-aldehyde condensation products if desired in the presence of stiffening or softening agents and hardening the condensation product at temperatures below 100 DEG  C.  Suitable aminotriazines include melamine, melam, chlormelamine and ammeline. The condensation products are preferably used in acid solution such as in hydrochloric, phosphoric, formic, acetic, lactic or tartaric acid.  The condensation may be effected on the fibre by treatment in a bath containing the azine and aldehyde or by treatment in a bath containing the azine after aftertreating with gaseous aldehyde.  The effects may be local.  Aqueous or alkaline solutions may also be used, the impregnated fibre being subjected to the action of acid. Suitable fibres that may be treated are cellulose, regenerated or esterified cellulose such as cotton, ramie, linen, hemp, sisal, jute, coconut fibre, artificial silk, wool, or silk whether dyed or undyed. Suitable additional materials that may be added to the composition are dressing or fillings agents such as gum arabic, tragacanth, carob bean meal, kaolin, or tallow, softening-agents such as olive oil, castor oil, glycerine, paraffin, quaternary ammonium salts having an aliphatic residue having more than 8 carbon atoms, for example, trimethylammonium sulphate of monostearyl-p-phenylenediamine and water repelling agents such as paraffin, wax, resins, aluminium salts, alkaline earth salts and lime soaps.  In examples: (1) bleached and mercerized cotton satin or cotton fabric is impregnated with a solution of a melamineformaldehyde condensate in a formic acid solution to which may be added (4) the trimethylammonium sulphate of monostearyl-p-phenylenediamine, (5) an emulsion of paraffin containing glue as emulsifier, or an aluminium salt, (6) a starch paste, (7) a starch-kaolin paste, or (8) gum arabic, carob bean flour or tragacanth; (9) fabric is impregnated with a formic acid solution of a melam-formaldehyde, chlormelamine - formaldehyde, or ammelineformaldehyde condensation product and potato starch paste. Specification 466,015 is referred to.
Patent GB-141658-A (GB)
Title: Improvements in electric condenser plate construction
IPC: H01G4/30
Filed: 1919-07-24
Abstract: 141,658. Dubilier Condenser Co., (Assignees of Dubilier, W.). April 11, 1919, [Convention date]. Condensers.-The conducting plates of a condenser comprise central portions 4 of a relatively rigid material such as copper, and surface portions 5 of a relatively soft material such as tin foil, the surface portions being pressed into intimate contact with the insulating sheets 2. The side edges 3 of the central portions 4 of alternate plates extend beyond the insulating-sheets and are connected together as shown.
Patent GB-1032172-A (GB)
Title: Temperature compensated inductor
IPC: H01F27/00
Filed: 1963-05-10
Abstract: 1,032,172. Inductors. STANDARD TELEPHONES & CABLES Ltd. May 10, 1963 [May 16, 1962], No. 18572/63. Heading H1T. The increase of permeability with temperature of the gapped core 16, 26 (Fig. 3) is partially, wholly or over compensated by securing the core parts together by a temperature - sensitive laminated locking means 60, 64 which expands with increase in temperature to increase the core gap. The small outer gap 56 may be filled with silicone grease. The laminated locking means may be formed of viscous epoxy cement layers 60 securing the core parts to a sheet of nylon or "Mylor" (Registered Trade Mark). The core parts are pressed together until the desired inductance of the coil is obtained and the cement 60 is then cored. Tapping and main leads pass through apertures 46 in the coil former and core and through hollow rivets 54.
Patent GB-274472-A (GB)
Title: Improvements in or relating to electrical amplifying apparatus
IPC: H03F1/16
Filed: 1927-07-13
Abstract: 274,472. Westinghouse Electric & Manufacturing Co., (Assignees of Jarvis, K. W.). July 17, 1926, [Convention date]. Thermionic amplifiers. - In a high-frequency amplifier in which a tapped tuned circuit is arranged to prevent inherent reaction, parasitic oscillations are prevented by means of a stabilizing circuit which provides reverse electromagnetic coupling between the input and output at frequencies above that of the signals but substantially no coupling at the signal frequency. The Figure shows a tapped circuit tuned by the condenser 9 with a neutralizing condenser 18 in which the inductance is in two parts 5, 19 coupled to reversed feed-back inductances 22, 23 to prevent parasitic oscillations. Specification 119,365. is referred to.
Patent GB-857321-A (GB)
Title: A process for the polymerisation of formaldehyde
IPC: C08G2/00
Filed: 1959-06-01
Abstract: Polyoxymethylenes are prepared by polymerizing formaldehyde in the presence of metallic aluminium, an aluminium alloy, aluminium oxide, aluminium hydroxide, or hydrated aluminium oxide.  When aluminium or aluminium alloy is used it may be activated by treatment with a solution of mercury salt.  The polymerization may be performed with or without a solvent at -80 DEG  to +70 DEG C.  In examples formaldehyde is polymerized in vessels containing small aluminium plates activated by treatment with mercuric chloride, aluminium alloys, hydrated aluminium oxide in toluene, aluminium oxide prepared from aluminium alloys in toluene, and aluminium hydroxy chloride in toluene.
Patent GB-1389295-A (GB)
Title: Ovens and their operation
IPC: F27D11/02
Filed: 1972-04-21
Abstract: 1389295 Teeth K HINTENBERGER 21 April 1972 [22 April 1971] 18673/72 Heading A5R [Also in Division F4] In a pre-fired denture, a metal support element 20 which carries a paste 21 to be fired, is provided with a cavity 19 open on the under side. A small hole 18 is provided in the top of the support element 20 to improve venting of the cavity 19 during the firing process.
Patent GB-1055108-A (GB)
Title: Titanium dioxide pigment and method for the preparation thereof
IPC: C09C1/36
Filed: 1964-05-06
Abstract: Pigment grade crystalline, acicular TiO2 has a cross-sectional diameter of 0.05 to 0.2 m , a length of 0.3 to 0.8 m  and the ratio of length: diameter is from 3 to 8.  The TiO2 may be prepared by adding an aqueous colloidal suspension of TiO2 seed to an aqueous, acidic "master" solution of titanium chloride, hydrolysing the mixture, separating the TiO2 precipitated and heating it to produce the novel TiO2.  The seed is prepared from an aqueous TiCl4 solution having Cl: Ti ratio of 1.5 to 4, a pH of 0.3 to 0.7 and a Ti concentration equivalent to 8 to 30 g./l.  This solution is heated to 60 DEG  to 80 DEG  C. for 4 to 15 min. or more and added, in quantity sufficient to supply 4 to 10% of the Ti concentration in the final mixture, to a master solution having a minimum Cl: Ti ratio of 4, a minimum H+ : Ti ratio of 4 and a Ti concentration equivalent to 30 to 50 g./l.  The resulting mixture is heated at, say, 100 DEG  C. and 1 atm. pressure, or preferably at e.g. 190 DEG  C. and autogenous pressure, and the TiO2 precipitated by hydrolysis is separated by filtration or centrifugation, washed and calcined at 700 DEG  to 900 DEG  C. for 0.5 to 6 hours.  TiCl4 leach liquor produced by dissolution of titaniferous material with HCl and subsequent removal of Fe by solvent extraction may be employed in the preparation of both seed and master solutions.
Patent GB-783917-A (GB)
Title: Manufacture of aromatic esters
Inventor: O'NEILL WILLIAM ALEXANDER
IPC: C07C69/82
Filed: 1955-06-29
Abstract: Esters of terephthalic acid are made by oxidizing p-diacetyl benzene by an alkaline hypochlorite solution in presence of an alcohol containing one or more hydroxyl groups.  In examples, p-diacetyl benzene is reacted with sodium hypochlorite solution in presence of methanol, ethanol, or ethylene glycol to give respectively dimethyl, diethyl, or di-hydroxyethyl terephthalate.
Patent GB-146903-A (GB)
Title: A method of detecting the effects induced by alternating currents flowing through conductors laid in fair-ways for vessels
IPC: G01S1/02
Filed: 1920-07-06
Abstract: 146,903. Siemens & Halske Akt.-Ges. Dec. 18, 1918, [Convention date]. Locating conductors.-In apparatus for indicating navigable channels &c. by alternating current supplied to a cable laid along the channel, acting inductively on coils or other receiving devices on the ship, low-frequency impulses are used to allow greater length of cable to be used than is practicable with high frequencies, and the receiving-apparatus includes an interrupting device which breaks up the received induced impulses so that they may be detected in a telephone receiver. Fig. 2 shows the detecting coil S in series with a telephone receiver f and contact e which is made and broken by an interrupter U. Alternatively, the contact e may be arranged to short-circuit the telephone as indicated in dotted lines. In a modified arrangements two interrupters are used, one controlling the circuit of the other which in turn controls the contact e.
Patent GB-325454-A (GB)
Title: Improvements in variable speed power transmission mechanism for motor vehicles and the like
IPC: F16H61/02
Filed: 1929-06-21
Abstract: 325,454. Robertson, J. E. June 21, 1929. Variable-speed gearing comprises a series arrangement of two or more two-speed bevel differential or epicyclic gears in which change from speed reduction to solid drive is effected by an automatic centrifugal clutch which does not transmit the load, the clutches becoming operative in succession. In each differential train, a sun-wheel c is keyed to the driving-shaft b, the other sun-wheel g being keyed to the driven shaft f. The planet carrier e can be variably connected to the driven sun g by means of a centrifugal clutch in which friction surfaces on centrifugal masses m, constrained by means of links k, Fig. 2, to revolve with the planet carrier and drawn inwards by springs o, engage a drum n which is keyed to the driven sun. The driven shaft is held from backward rotation by means of a one-way clutch of the ball or roller type, one member r of which is fixed, the other member h being keyed to the shaft. The one-way clutch may be arranged within the bracket j. The second train c', e<1>, g<1> &c. is similar to the first. Reversing is effected by means of the differential train shown on the shaft of Fig. 1, which comprises a driving sunwheel t, a planet carrier s, and a sun-wheel keyed to the driven shaft u. For forward drive a dog clutch q feathered to the driving shaft f<1> engages clutch teeth on both the planet carrier and the sun-wheel t. For reverse drive, the positive brake v engages the planet carrier. The clutch and brake are simultaneously operated by means of a hand lever v, Fig. 4, and a rod p, and the same lever may also be used to disengage the main clutch disc a, by means of a rod w, whilst the reversing operation is being effected.
Patent GB-897309-A (GB)
Title: Electro-magnetic tripping devices
IPC: H01H71/24
Filed: 1958-06-16
Abstract: 897,309. Automatic circuit-breakers. ELEKTROSCHALTGERATE GORLITZ VEB. June 16, 1958 [March 7, 1958], No. 19163/58. Class 38 (5). An electromagnetic tripping device may be used either as an undervoltage or as an overload tripping device and comprises a spring-loaded tripping lever 5 connected to a member 10 which co-operates with a latch 11 connected to the armature 3 of the electromagnet 1, the member 10 engaging the latch 11 in one of two alternative presettable positions such that either the attraction or the release of the armature causes the release of the member 10. The type of tripping chosen is selected by turning a disc 16 to suitably tension a spring 18 acting on the armature and by means of a cam 14 to position the member 10 so that one or other of the shoulders 24, 25 on the member can abut the adjacent side of a slot 26 in the latch 11. The device is set by means of a cam (not shown) which turns a lever 7 clockwise to stress a spring 8 which tends to force the levers 5, 7 apart. The action of the spring 8 turns the lever 5 which permits the upward movement of a member 19 so that contacts 20, 21 in series with the coil 2 are closed. The lever 5 also moves the member 10 so that the appropriate shoulder 24, 25 rests on the latch 11. The release of the armature 3 on undervoltage or the attraction of the armature on overload (as selected) moves the latch to the right or left, respectively, to release the shoulder 24 or 25 so that the member 10 can move downwardly through the slot 26 under the bias of the spring 8 acting on the lever 5, the end 6 of the lever 5 tripping the associated circuit-breaker (not shown).
Patent GB-314986-A (GB)
Title: Improvements relating to containers for inflammable liquids
IPC: A62C4/00
Filed: 1929-06-21
Abstract: 314,986. Gimmi, A. July 7, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cans; non-metallic hollow-ware.- Relates to means for preventing explosion in cans or other metal, glass, and like containers for storing inflammable liquids such as petrol. In the form shown in Fig. 1, the vessel is fitted with an inlet pipe 6 fitted with a screw-cap 7 and having disposed within it four tubes 8 extending the entire length and a series of shorter tubes 9 filling up the lower portion. Air-escape apertures 6<1> are provided in the upper part of the pipe 6. Beneath the bottom 3 of the vessel in communication with an outflow opening 12 is a pipe 11 leading to an outflow cock 13 and provided with an enlargement 14 filled with tubes 15. In a modification, Fig. 4, the pipe 6 may, in place of the aforementioned tubes, be fitted with one or more internal tubes 16, formed with apertures as at 17. In a further modification, shown in Fig. 5, an apertured sleeve 18 surrounds the apertured upper portion of the pipe 6, Fig. 1. The cap 7 may be formed with a separate centre portion lightly soldered in position so that it will open under slight pressure or when heated.
Patent GB-767097-A (GB)
Title: Improvements in or relating to tape winding apparatus
IPC: G01D15/28
Filed: 1953-07-13
Abstract: 767,097. Recording apparatus. SIEMENS & HALSKE AKT.-GES. July 13, 1953 [Sept. 1, 1952], No. 19309/53. Class 1.06 (4). [Also in Group XVI] An apparatus for winding tape, especially a recording tape in a measuring instrument, comprises a winding drum 15 and a rigid. guide 14 which causes the tape 10 to form a loop surrounding the drum, the drum 15 being rotated at a greater peripheral speed than the rate of feed of the tape, and resilient arms 17 on the drum which brush against the inner surface of the loop and are depressed against the surface of the drum as the loop is drawn tight. The drum 15 is connected by a slip coupling, not shown, to driving means, e.g. a clockwork or synchronous electric motor, such that the peripheral speed of the drum 15 is greater than that of drum 11 which unwinds the tape from a supply roll 12. The feeler arms 17 are screwed or riveted to recessed parts 16 of the drum 15 at 18. Flanges 20, 21 prevent the tape deviating laterally during winding, the flange 20 being removable to permit withdrawal of a completed roll. The feeler arms 17 are preferably of thin spring metal with a rubber covering, or may be rigid but engaged by springs. _____
Patent GB-229941-A (GB)
Title: Apparatus for continuously welding pipes
IPC: B21C37/08
Filed: 1924-08-14
Abstract: 229,941. Harmatta, J. Aug. 14, 1924. Pipes.-In the continuous manufacture of welded pipes from strip metal, the strip is drawn through a skelping die, and the slit in the pipe is then engaged by a guide to convey the pipe in a straight line to an electric resistance welding apparatus. The strip 5 is drawn through a skelping-die 2 having a steel lining 3 and a cut away outlet in which is supported a grooved roller 6 having a guiding fin 9. The pipe then passes through a smoothing-die 11 and then between a pair of adjustable rollers 12 for pressing the edges of the joint together. The pipe then passes through the welding-apparatus which consists of a roller electrode 14 connected to one pole of the circuit and engaging the seam and an electrode connected to the other pole of the circuit and consisting of a pair of pressure rollers 15 and a roller 17. The pipe then passes through smoothing-rollers 18, 19 and is drawn to gauge through a die 21.
Patent GB-1185635-A (GB)
Title: Improvements in or relating to Machines for Loading Thin Articles into Bags
Inventor: RAND WALTER LESLIE
IPC: B65B25/00
Filed: 1966-05-03
Abstract: 1,185,635. Packaging thin articles. ELECTRIC & MUSICAL INDUSTRIES Ltd. 3 May, 1967 [3 May, 1966], No. 19341/66. Heading B8C. In a machine for inserting thin articles into bags, covers 2 are withdrawn from an open sided box 1 by reciprocal suction devices 8 and held open by flange (26) (Fig. 2, not shown) beneath opening 4 through which an article e.g. a gramophone record is dropped. The cover with the article is then released and is guided by shoot 9 to between a pair of hinged plates 10, 11 and is gripped therebetween. In the meantime a bag or sleeve is removed from a magazine 17 by suction device 63 and fed by rollers to station 16 where it is opened by suction devices 69, 70 (Fig. 4, not shown). The plates 10, 11 with the thin article therebetween are then fed into the open sleeve by reciprocating means 15. The plates 10, 11 are such that a part of the article protrudes clear therefrom and when inserted in the sleeve a plunger 71 is operated to apply pressure to the clear part of the article through the sheet so as to hold the article in the sleeve whilst the plates 10, 11 are withdrawn. The filled sleeve is pushed from the station 16 by an incoming empty sleeve so as to be engaged by rollers and discharged from the machine.
Patent GB-440808-A (GB)
Title: Improvements relating to garbage pails or bins and emptying means therefor
IPC: B65F3/12
Filed: 1934-07-02
Abstract: 440,808. Scavengers' vehicles. FEIDERT, J., 69, Rue d'Anvers, Luxemburg. July 2, 1934, Nos. 19488 and 19489. Convention dates, June 30, 1933 and June 23, 1934. [Class 108 (i)] [See also Groups I and XVII] In means for emptying refuse bins into carts &c. the bin is locked automatically to a tilting member by a cam engaging the hinge socket of the bin lid, and is automatically disengaged during the return of the bin after tilting. The hinge socket 15, Fig. 3, is welded to a strengthening ring 14 of inverted-U-cross-section. The bin is initially supported at 2, Fig. 1, and then swung up so that the socket 15 engages, lifts, and passes a cam 9 mounted on a shaft 7 ; springs 18 then return the cam, so that it clamps the socket against the wall 10 of the tilting member 5 provided with a freely suspended hinged closure 12, with which the bin lid 17 engages by means of a finger 19. The bin and tilting member are pressed inwards and the closure 12 and lid 17 open, maximum opening being secured at the end of the movement by the engagement of an arm 20 with an abutment 21. Near the end of the return movement, arms 22 on the shaft 7 engage abutments 23, Fig. 8, thus lifting the cam 9 and freeing the hinge socket 15 ; at the end of the movement the arms 22 assume the position shown in Fig. 4, so that the member 5 cannot be moved until the shaft 7 is moved by a fresh bin. Various modifications are described, whereby the closure 12 is prevented from fouling the refuse in the cart &c. In one form, the closure hinge has an arm 24, Fig. 9, connected to an extensible member 25, 26 pivoted at 27, the bottom of the closure then following the path B instead of the path A. In other forms, the arm 24 has a member moving along a fixed guide, or is pivoted to a link 31, Fig. 10, connected to a lever 32 pivoted at 33 and normally resting on a stop 34. In a further form, a rod 37, Fig. 12, swinging about a lower fixed point operates a clutch member 38 co-operating with a clutch member 39 on the closure 12.
Patent GB-645107-A (GB)
Title: Indoor recreational board game
IPC: A63F3/00
Filed: 1948-07-21
Abstract: 645,107. Board games. WISE, A. A. July 21, 1948, No. 19497. [Class 132 (ii)] A game board comprises sections 1 hinged together in pairs by flexible material and detachably connected together to form a playing area by a plate 2, Fig. 3, having studs B fitting holes Bl in the sections 1 which have depressions or countersunk holes to receive playing pieces as shown in Fig. 5. Along the juxtaposed edges of the sections 1 semi-circular and quartercircular scallops E are provided co-operating to form complete depressions for the playing pieces. For stowage the plate 2 is mounted on one of the sections 1 on a hole C. The playing piece is mounted on a ball.
Patent GB-938205-A (GB)
Title: Improvements in or relating to electrical digital differential analysers
Inventor: BRANSTON NEIL MARK
IPC: G06F7/64
Filed: 1961-05-31
Abstract: 938,205. Digital differential analysers. GENERAL ELECTRIC CO. Ltd. May 31, 1962 [May 31, 1961], No. 19655/61. Drawings to Specification. Class 106 (1). The digital differential analyser is the same as that described, in Specification 938,204, but the claims relate to means for scaling the increments of the integrand before adding them in. Specification 895,578 also is referred to.