baber/WOPTO huggingface dataset:
Patent GB-534662-A (GB)
Title: Improvements in pressure gauges and other indicating instruments
IPC: G01L7/04
Filed: 1939-09-07
Abstract: 534,662. Indicating apparatus. GRANT, C. R. A. Sept. 7, 1939, No. 25324. [Classes 106 (ii) and 106 (iv)] Comprises a Bourdon pressure gauge in which back-lash of the pointer 16 is avoided by resilient means acting upon the pointer or indicator spindle through the intermediary of an additional toothed or friction rack mounted independently of the usual driving rack. The Bourdon tube 25 operates the pointer 16 through a link 23, quadrant 18 and pinion 20 on the pointer spindle. An additional rack 19 pivoted on the same point as rack 18 meshes with the pinion 20. A leaf spring 27 anchored to the screw 14 bears upon the rack 19 near its pivot and causes the teeth of the pinion 20 to be nipped between the teeth of the racks 18, 19 thus preventing back lash. The rack 19 need not be centred on the same pivot as the rack 18. The additional rack may be pressed from sheet metal the tail being bent near the pivot to form the spring. The rack may not be toothed and may engage the indicator spindle frictionally. It may be milled and engage a rubber coated member on the spindle.
Patent GB-668537-A (GB)
Title: A method of and means for slitting a whale
IPC: A01K79/00
Filed: 1948-09-29
Abstract: 668,537. Knives. SAEBJORNSEN, S. Sept. 29, 1948. [Sept. 29, 1947] No. 25364/48. Class 30. [Also in Group VI] A knife 1 for slitting a whale whilst alongside a ship, comprises a sickle shaped blade 1 with a transverse plate 2 at its tip preventing it from lifting in the carcase during cutting. A shaft 17 extends from the blade 1 to an operator on the ship who thereby guides the knife whilst it is pulled longitudinally through the carcase of the whale by a cable and winch. The shaft 17 is pivoted to the blade 1 in a plane at right angles to the knife and is secured at any desired inclination to the blade, by a spring- loaded catch 14 movable with the shaft 17 and capable of being brought into engagement with any one of a number of slots 15 in an arcuate edge of a plate 8 fixed to the blade 1. A line attached to the catch 14 is led up to the said operator. The knife has a forwardly directed tongue having holes 4 for a pin of a shackle 5 attached to a cable 6. Specification 438,491 is referred to.
Patent GB-534576-A (GB)
Title: Improvements in or relating to electron discharge apparatus
IPC: H01J43/02
Filed: 1939-09-08
Abstract: 534,576. Valve circuits. STANDARD TELEPHONES & CABLES, Ltd., SHANNON, D. S. B., and CHATTERJEA, P. K. Sept. 8, 1939, No. 25428. [Class 40 (v)] The auxiliary cathode and the collector electrode of an electron-multiplier are connected to separate output circuits, and the auxiliary cathode may be put out of action by reducing the voltage on an accelerating grid. As shown in Fig. 2, the valve is used in a combined transmitting and receiving circuit. The transmitter comprises an oscillatory circuit L2, C2 connected between the auxiliary cathode SE and the accelerating grid S, and an output circuit LC associated with the auxiliary cathode SE. The receiving circuit comprising an input circuit L1, C1 from the aerial and an output connexion from the collector electrode A. The receiver is always in effective connection, but the transmitter may be cut out by reducing by means of the potentiometer R1, the voltage on the accelerating electrode S. A remote transmitter may break in while the home transmitter is in operation, and the resulting heterodyne note may be used to control the potentiometer R1 and to cut out the home transmitter. When two transmissions such as television and sound are received on the same aerial, the valve V is used as a pre-amplifier, and the television and sound receiving circuits tuned to their respective wave-lengths are connected to the electrodes A and SE. One of the transmissions may be cut off by adjustment of the potentiometer R1, or the substitution of an alternative potentiometer, and the change may be effected by a switch on the panel, by a relay, or by remote control. The valve may be of the kind described in Specifications 484,900 and 524,049.
Patent GB-448329-A (GB)
Title: Flexible wood flooring
IPC: E04F15/04
Filed: 1934-09-05
Abstract: 448,329. Wood Poor-blocks. ELMENDORF, A., 2245, S. Crawford Avenue, Chicago, U.S.A. Sept. 5, 1934, No. 25526. [Class 145 (ii)] [See also Group X] Flexible wood flooring material comprises a number of units 10 which are in abutting relation and are of square, rectangular, diamond or other shape in plan, each unit being grooved or rabbeted around its edges on the lower side thereof, and the resulting grooves or channels along the meeting edges of the units being filled with an elastic filling material. The grooves in the edges of the units may be such as to produce channels of dovetail, V, rectangular or T cross-section. The filling material may be rubber latex, with which may be incorporated casein or powdered mica. A reinforcement in the form of a fibrous cord may be introduced into the filling material, preferably only in the longitudinal joints. If desired, a fibrous cord may constitute the bulk of the filling material and be cemented into the grooves with an adhesive, such as ordinary glue. Preferably, the units, before assembly into sheets, are brought to a moisture content approximating to the maximum moisture content which the wood will have in use. The units are from 1 to 3 inches long or wide and from “ to # inch thick, and may be formed into sheets having a width of from 2 to 3 feet.
Patent GB-601405-A (GB)
Title: Improvements in or relating to mattresses incorporating springs
IPC: A47C27/045
Filed: 1945-10-02
Abstract: 601,405. Spring mattresses. FREEDLAND, M. M. Oct. 2,1945, Nos. 25538/45 and 7453/46. [Class 52(iv)] Upholstery springs 10 arranged in rows on cross bars 9 or on a plywood or like base have their upper ends interconnected, preferably by welding, to thin flexible metal strips 11, 21 or to a thin flexible sheet of metal which in turn supports a sheet or boards of hard flexible material 12, 20 such as plywood or synthetic wood or fibre board upon which can be placed a layer 13 of sponge rubber or like padding; the assembly being preferably encased by a fabric cover 14.
Patent GB-425613-A (GB)
Title: Improvements in velocipedes such as cycles
IPC: B62M9/124
Filed: 1933-09-15
Abstract: 425,613. Change - speed gearing. CARATTOLI, B., Perugia, Italy. Sept. 15, 1933, No. 25562. [Class 80 (ii)] [See also Group XXXI] A change - speed gear for cycles comprises a fork member C, Fig. 1, pivoted at A adjacent the rear wheel hub and consisting of two arms rigidly connected together near the frame member F and having a head D for adjustable engagement with a rack or guide D1, D2, the said arms having slots for engaging the spindle E of the driving wheel whereby the tension of the chain may be varied by movement of said fork to permit transfer of the chain from one pinion of the driving wheel to another. When the fork is moved upwardly from the position shown in Fig. 1, the chain becomes slack and may be shifted on to another pinion by the hand or foot. Preferably however, this transfer is effected automatically by a cam member. In the case of three pinions X, Y, Z, Fig. 12, this member has equally spaced profiles 34, 35, 36, 37 and is mounted on a shaft 46, secured in an extension 38, Figs. 9, 10, of the fork, to rotate with a ratchet wheel 39. On upward movement of the fork, the ratchet wheel is rotated by a pawl 41, step-by-step rotation being ensured by a spring 40 engaging the faces of a rectangular neck 43 integral with the wheel. In a modification, Figs. 16 and 17, the cam member is rotated through a dog-clutch 56 by an arm 51 connected by a cable 49 to an operating button 48, step-by-step motion of the member being ensured by means of a spring- pressed plunger 59 engaging successive faces of its neck 58. In an arrangement, Fig. 4, the head of the fork comprises a cross bar 8 connecting pistons 7 in the arms C1, C2, of the fork, the said crossbar engaging in notches 10 in a rack D, secured to the frame F, wings 11, 12 on the bar preventing lateral play in the notches. In other arrangements, of particular use with the modification described with reference to Figs. 16 and 17, the crossbar is secured to a shoe slidable on a guide secured to the frame F, one or two pins on the shoe engaging in notches in the guide to lock the shoe in position.
Patent GB-834337-A (GB)
Title: Photopolymerisable compositions and elements containing the same
IPC: G03F7/033
Filed: 1957-08-13
Abstract: 1,3 - bis - methacrylamido - 2 - propanol is prepared by acylating 1,3-diamino-2-propanol with methacrylyl chloride in the presence of aqueous potassium carbonate at 0-5 DEG  C. Specifications 600,023, 741,294, 741,441, 741,470, 792,840 and 807,948 are referred to.ALSO:A photopolymerizable composition which is substantially transparent to actinic light comprises 10 to 60% by weight of an addition polymerizable ethylenically unsaturated compound having a boiling-point above 100 DEG  C. at atmospheric pressure, 90 to 40% by weight of a neutral, non-ionizable polyvinyl alcohol ether, ester or acetal in which at least 70% of the structural units are vinyl alcohol units, which has a molecular weight of at least 5000 and which is soluble in water at 25 DEG  C. to an extent of at least 2% by weight, and 0.01 to 5% (based on the weight of the unsaturated compound) of an addition polymerization initiator p  which is essentially compatible with the other ingredients of the composition and is activatable by actinic light but is not activatable thermally at temperatures below 80 DEG  C.  Unsaturated compounds specified are esters and amides of acrylic and methacrylic acids, particularly esters of these acids with polyhydric alcohols and esteramides of such acids, blends of styrene with diethyl maleate or fumarate, methyl and beta-hydroxyethyl vinylbenzoates, divinyl terephthalate, divinyl benzene-1,3-disulphonate, divinyl butane-1,4-disulphonate and alpha-vinyl crotonaldehyde.  Of the polyvinyl alcohol derivatives listed preferred is a partially hydrolysed polyvinyl acetate. Photoinitiators specified are diactyl, benzil, benzoin, pivaloin, benzoin methyl or ethyl ethers, alpha-methyl benzoin and alpha-allylbenzoin.  The compositions may also contain compatible preformed polymers and fillers such as polyvinyl acetate and butyrate, polyvinyl formal and butyral, polyvinyl sorbate and sorbal, polyglyceryl phthalate and maleate, polymeric ethylene glycol and oxide, gelatin, starch, dextrin and casein and bentonite, silica and powdered glass.  In the example a composition comprising polyvinyl acetate hydrolysed to the extent of 86 to 89%, 1.3-bis-methacrylamido-2-propanol and benzoin methyl ether is cast into a film and photopolymerized by exposure to light from mercury vapour lamps.  This process is used in the preparation of relief images.  Specifications 600,023, 741,294, 741,441, 741,470, 792,840 and 807,948 are referred to.
Patent GB-1370260-A (GB)
Title: Loop steamer for steaming lengths of material
IPC: D06B17/06
Filed: 1972-06-02
Abstract: 1370260 Textile treating apparatus VEPA AG 2 June 1972 [26 June 1971 18 Oct 1971] 25776/72 Heading D1L In apparatus for use in e.g. fixing dyes on a tufted carpet material, the material 1 is guided through a loop steamer 1 as a series of vertical loops on driven guide rollers 3 mounted near the ceiling of the steamer 1, crease formation within the material being prevented by a web expanding device 8 mounted upstream of each guide roller 3 to expand the material to its full width before it passes over the roller. The expanding device may be a stationary guide plate 13 (Fig. 4) mounted immediately upstream of the guide roller 3 and having ridges formed in its surface which diverge in the direction of web travel (Fig. 5, not shown); a stationary convex roller 12 (Fig. 3 not shown); a threaded expander roller 9 (Fig. 2) formed with separate right-hand and left-hand threaded halves with each half being capable of being driven at different speeds by motors 10, 11; or a pair of guide plates 16, 17 (Fig. 8) formed with ridges 14 running from the centre to the edges of the webs in the direction of web travel, mounted on a traversing bar 18 and movable therealong in response to signals received by edge scanner 20. The devices of Figs. 2 and 8 may be used to centre the travelling web in addition to expanding it to its full width. As illustrated in Fig. 1 the loop steamer may include scanning elements 6 for detecting the length of the loops of material and adjusting the speed of guide rollers 3 via gears 7.
Patent GB-1073073-A (GB)
Title: Multi-layer circuit connection
IPC: G11C17/02
Filed: 1964-06-22
Abstract: 1,073,073. Printed circuit assemblies. RADIO CORPORATION OF AMERICA. June 22, 1964 [July 11,.1963], No. 25778/64. Heading H1R. A memory circuit of the kind described in Specification 1,059,467 (Division G4), including row and column conductors and resistors connecting each row conductor with one of each pair of column conductors, comprises a stack of insulating cards A, B, Fig. 14, each card having at least one aperture, corresponding apertures of the cards in the stack being staggered and in overlapping relation to allow a fluid conductor 348 to be placed within the apertures and to interconnect terminal areas 364 on the cards adjacent the apertures. This may be effected by using generally circular apertures on alternate cards having flats diametrically opposed; or by using alternate apertures of different shapes, e.g. circular and elliptical; or by using uniform apertures and relatively displacing alternate cards. The fluid conductor may be mercury or, preferably, a low-temperature solder, e.g. an alloy of some of Bi, Sb, Cd, Pb, Sn, In. The cards are stacked under pressure with an unapertured card at the bottom of the stack and the fluid conductor is poured in; this process may be facilitated by the application of a vacuum to the columns of apertures. Alternatively, a rod of solder is placed in each column of apertures and melted, as by H.F. induction heating. Fig. 3 (not shown) depicts a typical card of paper, plastics, or other preferably flexible insulating material. Six resistors (261-266) are formed on the card by " doctor-blading " a resistive slurry into the cut-outs of a template; a preferred slurry comprises carbon black, SiO 2 , polyester resin, ethylketone and a solvent. Alternatively, a silk-screening technique may be used to deposit a slurry of carbon black, resin binder, and solvent. The resistors are dried and, if necessary, heat- or chemical-cured. Conductive areas (260, 268a, 268b and 270-275) are then formed by silk-screening or by using one or more templates; a. silver paint comprising flake silver, resin and solvent is preferred. Apertures are stamped through the card after resistor and conductor formation, or prior to it, in which case deposition through a mask by evaporation, spraying, screening, printing &c. is employed. Each resistor (261-266) is shown connected to two terminal areas (268a, 268b); the connection to one of these areas is broken by punching, abrading &c. Alternatively, sets of terminal areas are formed isolated from the resistors, conductive connections being subsequently applied where required. Terminal areas (270-275) are selectively connected to the row conductor (260), and thence via fluid " riser " conductors to diodes (not shown), which may alternatively be mounted on the cards. To increase the number of cards in a stack, " riser " connection cards may be interposed at intervals in the stack. Capacitors, inductors, or diodes may replace resistors as storage elements.
Patent GB-1417349-A (GB)
Title: Substituted aminohalopyridines
IPC: C07D401/04
Filed: 1973-05-30
Abstract: 1417349 2-Amino halopyridines DOW CHEMICAL CO 30 May 1973 25784/73 Heading C2C 2 - Aminohalopyridines of the general formula wherein X is Cl, Br, I or F, n is 1 or 2 ; Z is dichloromethyl or trichloromethyl in the 4- or 6- position; R<SP>1</SP> is H, C 1-4  alkyl or C 2-4  alkenyl; R<SP>2</SP> is H, C 1-4  alkyl, amino, C 2-4  alkenyl, C 3-4  cycloalkyl or phenyl, or R<SP>1</SP> and R<SP>2</SP> taken together with the N atom represent an optionally alkyl substituted pyrrolidino, piperidin or hexamethyleneimino ring, are prepared by reacting a base of the general formula HNR<SP>1</SP>R<SP>2</SP> with a 2- halopyridine of general formula Amongst the examples the compounds 2-amino- 6 - chloro - 4 - (trichloromethyl)pyridine and 2 - (1 - pyrrolidinyl) - 6 - chloro - 4 - (trichloromethyl) pyridine are prepared. Pesticidal and plant growth stimulant compositions comprise compounds of Formula I in admixture with an inert carrier.
Patent GB-301301-A (GB)
Title: Improved method of and means for shrinking hat bodies and the like
IPC: A42C3/00
Filed: 1928-09-08
Abstract: 301,301. Wheeler, L. D. Nov. 26, 1927, [Convention date]. Bodies; felling.-Relates to felt hat body shrinking machines of the kind comprising superposed rows of pressure rollers, and consists in the provision of (1) means for driving the rollers of different rows, optionally, at the same or at slightly different speeds, (2) a conveyer for returning the bodies from the rear to the front of the machine for another treatment in combination with squeezing rollers on the conveyer for removing surplus liquor from the hat bodies. Superposed rows of rollers a are vibrated longitudinally and driven by worms on a pair of shafts driven by chains. One of these shafts is provided with two driving mechanisms or slightly different ratio, either of which may be clutched to the shaft. Preferably, the rollers are driven at the same speed when the hat bodies are fed through the machine with their tips or brims foremost, but at different speeds when they are fed sideways, so that in the latter case the whole body is treated uniformly. A conveyer n returns the hat bodies from the rear to the front of the machine, whence they may be replaced on the feed apron u. Rollers r above and below the conveyer, squeeze surplus liquor from the work.
Patent GB-240312-A (GB)
Title: Improvements in electric motor control
IPC: B60L15/00
Filed: 1924-10-30
Abstract: 240,312. English Electric Co., Ltd., and Morris, F. Oct. 30, 1924. Drawings to Specification. Master control systems. - In the control of electric traction motors a reversing switch actuated by solenoids or other means under the control of a master switch is biassed to return to an intermediate " off " position and is provided with separate sets of auxiliary contacts in order to complete separate actuating and maintaining circuits. When the reversing switch is required to return to the intermediate position the maintaining circuit is broken by a return movement of the master switch, or as a consequence of the opening of a line circuit-breaker.
Patent GB-619776-A (GB)
Title: Improvements in or relating to processes for the treatment of hydrocarbons containing acidic or phenolic substances
Filed: 1946-08-28
Abstract: Hydrocarbons containing phenolic or acidic substances are passed in the vapour phase first over a molten metal and then over a heated alkaline-earth salt, whereby some cracking of the hydrocarbons is effected and the phenolic or acidic substances are converted into neutral substances, particularly ketones and methyl alcohol.  The molten metal may be lead, and the alkaline-earth salt may be chalk or a barium salt heated to 500-800 DEG  C.  The process may be applied to the destructive distillation products of wood, lignite, peat, coal, shade and like substances.ALSO:Hydrocarbons containing phenolic or acidic substances are passed in the vapour phase first over a molten metal and then over a heated alkaline-earth salt, whereby the phenolic or acidic substances are converted into neutral substances, particularly ketones and methyl alcohol.  The molten metal may be lead, and the alkaline-earth salt may be chalk or a barium salt heated to 500-800 DEG  C.  The process may be applied to the destructive distillation products of wood, lignite, peat, coal, shale and like substances.
Patent GB-658743-A (GB)
Title: A method of applying a thermoplastic material to foundation surfaces
IPC: A47B13/08
Filed: 1947-09-24
Abstract: Cementitious structures, including baths, wash-basins, sinks and lavatory basins, are provided with a covering of thermoplastic sheet material such as polymethyl methacrylate by applying bitumen to either the structure or the sheet material or to both and causing them to adhere by pressure.
Patent GB-658298-A (GB)
Title: Improved manufacture of the sheet material known as vulcanized fibre
IPC: D21H11/18
Filed: 1948-10-05
Abstract: 658,298. Vulcanized fibre-board &c. CENTRAL ADAMAS SOC. P. A. Oct. 5, 1948, No. 25983. Convention date, Feb. 14. [Class 96] Pulp from a beater 1 is mixed at 4 with hydrated cellulose which has been beaten at 2, e.g. with 4 kgs. of calcium sulphocyanate per 100 kgs. of cellulose; loading substances, colouring matter, e.g. ferric hydrate, and resins, e.g. copolymers of polyvinyl acetate or chloride, or ethyl ethers of urea-formaldehyde, may also be added at the mixer 4, and the mixture is sheeted on a cylinder machine 7 and coated at 8 with hydrated cellulose from a pulping-engine 3, the web being wound up at 9 on a making roller; sheets are cut therefrom and passed to a table 10, a press 11 and a dryer 20. A parallel mixing, forming, and coating plant 5 ... 8<SP>1</SP> may form a web to be united with the other, or to be kept separate. The process may be modified for the production of continuous webs instead of boards &c. The product is of high electrical insulating strength.
Patent GB-355518-A (GB)
Title: Improvements in or relating to drawing pins and like fastening devices
IPC: B43M15/00
Filed: 1930-09-01
Abstract: 355,518. Nails. SMITH, M. M., Bowling Close, Henley-on-Thames. Sept. 1, 1930, No. 26059. [Class 89 (ii).] A nail or drawing pin is formed with a number of wire points 5, the upper portions 6 of which are secured in an annular groove in the head 1 by pressing over the upstanding flange 2.
Patent GB-334065-A (GB)
Title: Improvements in or relating to steam locomotives
IPC: F23L17/16
Filed: 1929-08-27
Abstract: 334,065. Pickersgill, W. R. A. Aug. 27, 1929. Overheating of tubes, preventing. - A small quantity of steam is led into the header of a locomotive superheater when the regulator is closed from a fitting 2 in the steam blower pipe 3, the fitting being divided by a baffle 2<c> which directs wet and condensed steam into the pipe 12 leading to the superheater header and allows dry steam to pass into the pipe 13 leading to the blower. A ball valve 22 between an annular passage 20<a> opening into the body of the fitting and a. passage 25 communicating with the pipe 12 prevents the return of steam from the superheater when the regulator is open. The non-return valve may be fitted directly upon the end of the pipe 12.