baber/WOPTO huggingface dataset:
Patent GB-398730-A (GB)
Title: Process for producing wood cellulose comparable to cotton, with high content of alkali resisting cellulose
IPC: D21C9/00
Filed: 1933-02-16
Abstract: For the production of wood pulp with a high content of alkali-resisting cellulose, the material to be refined such as sulphite cellulose is treated in an autoclave with a liquid containing from 1-1,5 per cent of sodium hydrate and from 0,2-0,3 per cent of a colloidal emulsoid sodium salt, stable to alkali, at a pressure of 1-2 atmospheres and for a period of 1-2 hours.  Sodium soaps of higher fatty acids may be used.  The alkaline treatment removes hemicelluloses, fats, and resins. Complete removal of residual lignin components is effected by a mild oxidizing treatment which is carried out in two stages, first in a feebly alkaline and then in a feebly acid medium.  The pulp, in a concentration of 5-6 per cent may be treated with a hypochlorite solution containing a small proportion of sodium carbonate, or calcium hydrate, or it may be treated with a dilute solution of sodium peroxide.  The pulp may then be treated with a solution of hypochlorous acid or with a dilute solution of potassium permanganate containing a small proportion of sulphuric acid.  The pulp is then treated with dilute sulphurous acid solution, washed and made into boards, sheets, felts, or flakes. If desired, the bleached material may be heated with dilute neutral sodium sulphite and a very small proportion of a colloidal sodium salt, and then washed, treated with sulphurous acid, and again washed.  The product is similar to cotton cellulose in regard to its high content of alkali-resisting cellulose, its viscosity characteristics, and its hydrophilous power.  It may be employed in the manufacture of cellulose esters and ethers and of artificial fibres and films.
Patent GB-101252-A (GB)
Title: Improvements in or relating to Loose Leaf Binders.
Inventor: WOLF ISAAC
IPC: B42F13/12
Filed: 1916-04-01
Abstract: 101,252. Wolf, I. April 1, 1916, Addition to 5396/15. Post files; covers ; locks; sheets.- The filing-appliance described in the parent Specification is provided with means, controlled by the movement of the binder sides, for displacing the clamping-members in opposite directions. The clamping- members 1 are normally held together by means of the sliding lock. ing-bar 2 and lugs 2<a>. The binder sides 19 are pivotally supported on members 18 carried by cranked levers 13, the lower ends of which have slotted connexions with the posts 4. When the binder is to be merely opened, the sides are turned upon the pivots 23; but when the leaves are to be unclamped, the sides are shifted longitudinally to engage the members 24, 25, and upon opening the sides, the levers 13 turn upon the pivots 14a, moving the posts 4 and thrusting apart the members 1. Sectional filing-posts, built up of sections shown in Fig. 4, may be used, and the leaves may be perforated as shown in Fig. 6.
Patent GB-865358-A (GB)
Title: Control means for a multiple-generator load division system
IPC: H02J3/46
Filed: 1957-07-19
Abstract: 865,358. Automatic load-sharing systems for alternators. SUNDSTRAND CORPORATION. July 19, 1957 [July 25, 1956], No. 5032/60. Divided out of 865,357. Drawings to Specification. Class 38 (4). The subject-matter of this Specification is the same as that of Specification 865,357 but the claims relate to the use of integral and differential signal components in the load sharing arrangement.
Patent GB-763095-A (GB)
Title: Improvements in and relating to hydraulic pumps and motors
IPC: F04B1/02
Filed: 1954-02-20
Abstract: 763,095. Pistons. DONKIN & CO., Ltd., PAULIN, W. S., and HALL, F. T. Feb. 17, 1955 [Feb. 20, 1954], No. 5058/54. Class 122 (1). [Also in Groups XXVIII and XXIX] In a hydraulic pump or motor the pistons 19 are bored at 42, which bore communicates with grooves 44 in the piston surface.
Patent GB-196750-A (GB)
Title: Improvements in and relating to synchronous dynamo electric machines
IPC: H02K19/32
Filed: 1922-02-21
Abstract: 196,750. British Thomson - Houston Co., Ltd., (General Electric Co.). Feb. 21, 1922. Pole - pieces; dynamos, regulating; motors, controlling.- In a synchronous machine in which the field magnet is formed with polar projections and the field-magnet windings are arranged so that they may be connected for N or 2N poles, N being an even number, the polar projections are shaped and arranged so as to give approximately a sine wave flux distribution for either pole connection. The polar projections are substantially equally spaced and each projection is formed with non-symmetrical pole tips. The projections are arranged in pairs with symmetrical pole tip facing each other, as shown in Fig. 2. The field-magnet windings 2, Fig. 1, are connected in pairs, and alternate pairs are connected in series and supplied with current through slip-rings 3, 4. The windings of each pair are connected to produce poles of opposite polarity whereby the reversal of current in one circuit changes the number of poles from 2N to N or vice versa.
Patent GB-276245-A (GB)
Title: Improvements in tar heating and spraying apparatus combined with steam road rollers
IPC: E01C19/17
Filed: 1927-02-23
Abstract: 276,245. Gregg, T. Feb 23, 1927. Cauldrons; surface treatment with liquid materials.-Tar-heating and spraying apparatus for attachment to road rollers is provided with a tar tank 2 located transversely across and preferably partly through the smokebox 1<a>. The hot gases on their way to the chimney 1<b> pass round flues 2a jacketting the tank and also, if desired, by way of damper-controlled flues 3 extending through the tank. The tar may also be heated by steam coils within the tank. A tar-distributing pump 6 driven from the crank shaft x forces the tar through a. pipe 7 leading to a transverse spray pipe, or the pump may be used for filling the tank from a tar boiler through a pipe y. Specification 237,091 is referred to.
Patent GB-100826-A (GB)
Title: Improvements in "Lancashire Beetle Machines."
Inventor: POWNALL TOM
IPC: D06C15/14
Filed: 1916-04-11
Abstract: 100,826. Pownall, T., and Vickers, G. E. April 11, 1916. Beetling.-The efficiency of a Lancashire beetling-machine, having fallers m operated from wipers a, is increased by the addition of hammers mounted loosely on a shaft f and having cams b operated from the wipers. The hammers have wooden heads j, and are provided with slots d adapted to engage a feather e on the shaft when this is rotated to hold the hammers out of action when a new piece of fabric is being placed in the machine. The shank g of each hammer is perforated at p so that it may be held out of action, as desired, by means of a hooked rod.
Patent GB-907444-A (GB)
Title: Improvements in or relating to bottle cases
IPC: B65D1/24
Filed: 1961-02-13
Abstract: 907,444. Bottle crates. HERCULES IBERICA S.A. Feb. 13, 1961 [April 22, 1960; Nov. 16, 1960], No. 5301/61. Class 18. A case for bottles has bottom, top and side walls formed in one piece by moulding and has apertures V in the top to locate the bottles. The case may be made by blow moulding, vacuum moulding or by injection moulding and may be of vulcanised rubber, cellulose acetate, polyvinyl chloride or polyethylene. Reinforcing ribs 16 may be provided on the top surface and similar ribs 7 on the inside of the bottom locate the lower ends of the bottles. Hand holes in the end walls each have a member Z of a plastic fitted therein, the member being expanded into position in a soft condition and subsequently hardened. Similar members may be fitted to apertures V to accommodate smaller diameter bottles. The apertures may alternatively have flanges on the underside, the depth thereof increasing towards the centre of the top. The bottom may have frusto-conical projections 17 which locate in the bottle bases or dishshaped members may be secured to the projections to fit the ends of the bottles. The projections are hollow on the under surfaces to accommodate the tops of bottles in a lower case when the cases are stacked (Fig. 6). All external edges of the case are rounded. Drainage holes are provided. Advertisements or trade marks may be formed in bas-relief on the outer walls. The apertures are moulded as portions of reduced thickness or are marked by grooves, the central portion being subsequently removed by a die.
Patent GB-650269-A (GB)
Title: Improvements in apparatus for uniformly dyeing rayon cakes
IPC: D01D10/04
Filed: 1948-02-23
Abstract: <PICT:0650269/IV (c)/1> <PICT:0650269/IV (c)/2> An apparatus for dying rayon cakes having inner tapered surfaces 94, comprises a perforated supporting spindle 45 coaxially supporting a basket 60 having outer perforated cylindrical walls 62, characterized by an adjuster 70 adjustably positioned in the basket and coaxial therewith and having a core 71 surrounding the supporting spindle, an outer tapered wall with perforations adapted to bear against the tapered face of its coacting rayon cake, a disc-shaped wall 78 at one end adapted to bear against the rayon cake and a wall at it other end, and means to move the adjuster longitudinally of the spindle, whereby the rayon cake will be compressed to a desired pressure and density.
Patent GB-1016022-A (GB)
Title: Improvements in the treatment of tubular fabrics
Inventor: HURT FRANCIS NEIL
IPC: D06C7/02
Filed: 1962-02-13
Abstract: 1,016,022. Finishing fabrics. HOSIERY & ALLIED TRADES RESEARCH ASSOCIATION. Feb. 7, 1963 [Feb.13, 1962], No. 5435/62. Heading D1S. Apparatus for shrink resistant and/or callendering treatment of knitted tubular fabric includes a stretcher frame for location inside the tubular fabric, at least two pairs of fabric feeding rollers spaced lengthwise of the frame to provide lengthwise spaced during locations for the fabric on the frame, and means co-relating the rate of drive of the rollers to the width of the fabric so that for any variation in fabric width caused by the frame there is an inversely proportional variation in the rate of drive of the pairs of rollers. As shown in Fig. 1 of Provisional drawings stretcher frame 5 is composed of spaced stretcher bars 6, 7 each having formed in their outer edges, recesses 8, 9, 10 ,  8<SP>1</SP> ,  9<SP>1</SP> ,  10<SP>1</SP> and two pairs of links 11, 12 and 13, 14 connected to bars 6, 7 and to bridge pieces 15, 16 spring biased towards each other by spring 17 oonnected at one end to bridge piece 15 and at the other to an adjusting screw 18 connected to bridge piece 16. The biasing action of screw 17 urges the stretcher bars 6, 7 away from each other. A pair of adjusting screws 3, 4, operated by handwheels 20, 20a have oppositely screwed portions 3a, 3b, 4a, 4b with which engage nut ends 22a, 22b, 23a, 23b of side bars 22, 23 disposed exteriorly of the fabric and rotatably mounting spaced wheels 24, 25, 26, 24<SP>1</SP>, 25<SP>1</SP>, 26<SP>1</SP> which register and co-operate with the recesses in the stretcher frame bars 6, 7 and are adapted to be driven for traverse of the fabric lengthwise about the frame 5 by engagement of the wheels with the fabric in the respective arcuate recesses. The wheels are driven from a reciprocating bar 2 through links 27, 27<SP>1</SP> by suitable pawl and ratchet wheel mechanism so that the wheels are rotated in the forwarding direction by both the push and the pull motions of the reciprocating rod 2, the latter, if desired, being operated automatically by suitable drive means. With the divergence of bars 22, 23 the leverage of the different pairs of links 27, 27<SP>1</SP> is progressively less towards the narrow end of frame 5 with the result that the speed of rotation of the wheels is progressively greater towards this end. Also variation in the spacing of bars 22, 23 automatically correspondingly varies the speed of rotation of the wheels. In use widthwise stretching of a tubular fabric fed over the frame 5 is accompanied by lengthwise contraction due to the differential speeds of the wheels. Fig. 1 of complete drawings shows the stretcher frame used in conjunction with feed rollers 40, 41 and associated steam spray pipes 43, 44. Electric motor 33 drives a bar 37, which is equivalent to the reciprocating operating bar 2 referred to above through belt and pulley means 34, eccentric 35 and connecting means 36.
Patent GB-420067-A (GB)
Title: Improvements in braun tubes, more particularly for television purposes
IPC: H01J29/52
Filed: 1933-02-22
Abstract: 420,067. Cathode-ray tubes. HUDEC, E., 17, Potsdamerstrasse, Sudende, Berlin. Feb. 22, 1933, No. 5470. Convention date, Feb. 23, 1932. [Class 39 (i)] The brightness of the fluorescent spot of a Braun tube for television &c. is modulated by an electrostatic field which controls the number oi electrons leaving the cathode and which, in front of the cathode in the direction of the anode, is parallel to the axis of the beam, the beam being then concentrated by a second electrostatic field converging from a positive electrode As to a more positive electrode Ak. The controlling field is formed between the cathode K, the Wehnelt cylinder W and the electrode As, the cathode projecting through a disc inside the cylinder W and the modulating voltages being applied to the cylinder W or to the electrode As. The electrode As is conically or spherically concave on the side facing the electrode Ak. The cathode may be an annular filament. The potential difference between the electrodes K, As is one-tenth that between the electrodes K, Ak. The potentials of the electrodes W and As are adjusted independently of the potential of the electrode Ak. Specification 271,131, [Class 39 (i)], is referred to.
Patent GB-581695-A (GB)
Title: Improvements in or relating to the manufacture of 5-amino-acridine compounds
IPC: C07D219/08
Filed: 1943-04-06
Abstract: 5-Aminoacridine compounds which may be substituted in the amino nitrogen atom and in the ring are prepared by reaction between a 5-acridyl ether and an ammonium salt or a salt of a primary or secondary amine in a reaction medium which contains water and subsequent liberation of the free base.  The ether may be prepared from the corresponding diphenylamine-2-carboxylic acid and not isolated.  An organic solvent such as ethyl alcohol may be present. Examples give the preparation of 5-aminoacridine from 5-methoxyacridine and ammonium chloride or sulphate, 5-methylaminoacridine from 5-methoxyacridine and methylamine hydrochloride, 2-chloro-5-amino-7-methoxyacridine from 2-chloro-5-ethoxy (or amyloxy or tetrahydrofurfuryloxy)-7-methoxyacridine and ammonium isethionate or chloride, 2-chloro-5-ethylamino-7-methoxyacridine from 2-chloro-5-ethoxy (or benzyloxy)-7-methoxyacridine and ethylaminehydroxhlocird, 2-chloro5-benzylamino-7-methoxyacridine lactate from 2- chloro - 5-n-butoxy - 7 - methoxyacridine and benzylamine lactate, and 2-chloro-5-(a -methyl-d -diethylamino-butylamino) -7-methoxyacridine from 2-chloro-5-ethoxy-7-methoxyacridine and a  - diethylamino - 8 - aminopentane dihydrochloride.  2-Chloro-5-ethoxy-, -5-n-butoxy-, -5-benzyloxy-, and -5-tetrahydrofurfuryloxy-, 7-methoxyacridine are prepared by the action of sodium ethoxide, n-butoxide, benzyloxide, and furfuroxide on 2,5-dichloro-7-methoxyacridine.  5-Amyloxyacridine is prepared by refluxing diphenylamine-2-carboxylic acid with phosphorus oxychloride and adding a solution of sodium in amyl alcohol.
Patent GB-180051-A (GB)
Title: Improved closure for lavatory basins
IPC: E03C1/264
Filed: 1921-02-17
Abstract: 180,051. Leroi, A. Feb. 17, 1921. Lavatory - basin waste and overflow fittings.-In a com bined overflow and discharge device of the kind described in Specification 156,679, a cylindrical grating 13 is placed inside the movable closure member 10. The grating may 'be open at both ends, as shown, or closed at one or both ends by gratings. It is secured in position by soldering at the lower edge to the part 4.
Patent GB-915927-A (GB)
Title: Improvements in or relating to gas detector devices
IPC: G01N31/22
Filed: 1961-02-14
Abstract: <PICT:0915927/III/1> A gas detector device having frangible ampoules surrounded by absorbent as claimed in parent Specification, is provided with an improved method of sealing the container.  Each end portion of the longitudinally extending container 1 is formed with a flange 14, which is welded to a similar flange on the end of the sealing element 11.  The portion of the sealing element adjacent to the flange 12 may be of larger cross-sectional area than the remaining portion of the sealing element, wherein the permeable spacing members 13 are arranged to keep ampoules 5 and 6 in position. The sealing elements are broken by means of the grippable elements 15. Said grippable elements may have a plurality of projections to facilitate the gripping thereof.
Patent GB-697186-A (GB)
Title: Fire extinguishers
IPC: A62C13/00
Filed: 1951-03-07
Abstract: 697,186. Fire-extinguishers. JONES & CO. (ENGINEERING). Ltd.. S., and PHILLIPS. C. H. March 6. 1952 [March 7, 1951], No. 5546/51. Class 47(ii) [Also in Group XXVIII] In 'a fire-extinguisher in which liquid is expelled from a container 1 by gas from a cartridge 20, the cartridge is supported by a spring 19 in a chamber 8 which is screwed into the head 3 and has a hollow piercer 17 at its lower end communicating by bores 18. 11 with the container 1 and a bore 12 connecting a dip tube 15 with an outlet nozzle 6 in the head which is provided with an operating plunger 4, a sealing disc 10 being clamped between the chamber 8 and the head 3. The cartridge 20 is enclosed in a sheath 21 having a flange 22 which co-operates with a shoulder 16 to prevent insertion of the cartridge the wrong way up.
Patent GB-197446-A (GB)
Title: A new or improved device for sharpening knives, scissors, and other cutting tools
IPC: B24D15/06
Filed: 1922-02-25
Abstract: 197,446. Pritchard, A. Feb. 25, 1922. V-slot blade sharpeners.-A knife or other blade is sharpened by being drawn between two series of hardened steel discs f, which have bevelled edges and are rotatably mounted on parallel spindles e in a U-shape frame a so that the discs alternate with each other and also overlap. The frame is secured to a handle b, and may be provided with a hand-guard. Notches h in the sides of the frame a provide clearance for the knifeblade, and further notches j are arranged so that a scissor or like blade can be sharpened against the inner series of discs.
Patent GB-143652-A (GB)
Title: Improvements in tunnel kilns
IPC: F27B9/36
Filed: 1919-03-06
Abstract: 143,652. Benjamin, G. H. March 6, 1919. Tunncl kilns; air, supplying.-A tunnel kiln for the manufacture of tiles, pottery, bricks, &c., and for annealing metals and other purposes, is heated by structurally independent combustion chambers 6, 6<a>, &c. arranged longitudinally in line on each side of the tunnel and separated from the walls and roof so as to leave air passages 7, the chambers being as high as the maximum height occupied by the goods under treatment and having such an interior capacity as to permit free combustion of the gaseous mixture. The sides of the combustion chambers are moreover vertical and parallel with the tunnel sides, and the tops are parallel with the inclined roof. Gas and air under independent control for each combustion chamber are supplied by pumps 18, 19. Circulation of air over the backs of the combustion chambers and downwards through the goods to outlets 34 in the truck floors is maintained by a pump 20, and, by the use of a separate pump for each section of the kiln, or by manipulation of valves such as 23, 24 where a single pump is employed, air having passed through a kiln section is discharged or else re-circulated as required. The hot gases after leaving the chambers 6 &c. may heat the incoming circulation air.
Patent GB-117243-A (GB)
Title: Improvements in Belt-carriers for Watches.
Inventor: GINNEL HENRY
IPC: G04B37/14
Filed: 1918-04-02
Abstract: 117,243. Ginnel, H. April 2, 1918. Cases, watch.-A watch holder for attachment to a belt comprises an inner container f, Fig. 6, adapted to hold the watch frictionally and to be inserted in an outer holder g, Figs. 4 and 8, which is provided with an attachment for a belt strap, and with a hinged cover h of the halfhunter type marked with the hours and serving, when closed, to cover the radio-active figures of the watch dial. The inner container f, annular in form with a retaining flange f<1>, is made preferably of Swedish soft iron, flexibility being obtained by means of cuts f<2>. The container f fits tightly within the holder g and may also be secured therein by means of snap fastenings g<1>. Slots f<3>, g<3> are provided in the container and holder respectively for the pendant, and the cover h of the holder is provided with a snap fastening h<4>. The back of the holder may be provided with a loop k for the belt, Fig. 4, or, as shown in Fig. 8, it may carry the belt buckle k<3>, k<4> of known type.
Patent GB-677709-A (GB)
Title: Means for automatically controlling the forward movement of electrodes in arc-lamps having more than two electrodes
IPC: H05B31/00
Filed: 1951-03-09
Abstract: 677,709. Automatic control systems for arc lamps. LOBBE, G., and ROUSSIN, H. E. March 9, 1951 [March 23, 1950], No. 5758/51. Class 38 (iv). In an automatic control system for an arc lamp having more than two electrodes, the axes of which pass through a common point, each electrode is moved automatically in response to the voltage supplied to that electrode. In Fig. 1, three carbon electrodes 1, 2, 3 of an arc lamp are supplied from a three-phase starconnected source G having a high internal resistance producing a drooping output characteristic. Burning of the carbons decreases the current to raise the voltages between lines r, s, t and neutral n, and when any one of these voltages exceeds a predetermined value a corresponding relay R1, R2, R3 operates to complete the circuit from a source S to an electric motor M1, M2 or M3 which restores the appropriate electrode to its correct position. The relays may be electro-mechanical or electronic and source S may be derived from source G. In a modification, Fig. 2 (not shown), the controlling circuit for a single relay is connected in turn between each line and neutral by one of a pair of ganged, continuously rotated switches, the other rotary switch connecting the appropriate electrode motors, in turn, into the circuit controlled by the relay. In a modification, Fig. 3 (not shown), each electrode motor is directly connected between the appropriate line and neutral and its normal speed is arranged to correspond with the normal rate of electrode wear. Formation of the high resistance source G by a magnetic loss transformer or by adding external impedances is referred to. Connection of the circuits for controlling the relays across the lines, arc lamps having more than two electrodes and D.C. arcs are also referred to.
Patent GB-232559-A (GB)
Title: Shock absorber for electric sewing machine light
IPC: D05B79/00
Filed: 1925-03-03
Abstract: 232,559. Singer Manufacturing Co., (Assignees of Claason, D. H.). April 18, 1924. [Convention date]. Sewing - machines; illuminating- apparatus. - In means for mounting electric lamps on sewing-machines, the lamp-socket 19 is screwed on a tubular member 14, formed with a head 15 and a flange 16, having a. notch 17 engaged by a pin 18 fixed in a ring 10, which is secured by diametrically-opposed setscrews 13, engaging a groove 12 in the ring, in a tubular support 8 having a reduced end 7 disposed in a boss 6 on the arm 3 of the machine, felt, or other cushioning washers 20, 21 being provided between the ring 10 and member 14 and between the opposite faces of the ring 10 and the flange 16 and lamp-socket 19, or an adjacent metal washer 22, respectively. The degree of compression of the washers 21 is adjusted by rotating the lamp-socket 19, a pushswitch 24 and reflector 26 being brought into the required position by loosening the screws 13 and rotating the ring 10.