baber/WOPTO huggingface dataset:
Patent GB-821598-A (GB)
Title: Improvements in apparatus for generating foam for use in fire fighting
IPC: B01F5/04
Filed: 1958-02-27
Abstract: 821,598. Fire-fighting foam generators. WHITSON & CO. Ltd., J. Feb. 27, 1958, No. 6391/58. Addition to 807,146. Class 47 In a foam generating apparatus as claimed in the parent Specification, means for effecting intimate mixing of the air and the supply of liquid and foam compound on the side of the impeller 32 opposite the nozzle 24 include, forwardly and inwardly inclined elements 102 disposed forwardly of the impeller 32 and adapted to extend into a peripheral region of the central jet which passes through the impeller, and a deflector 106 disposed on the axis of the central jet and. forwardly of the elements 102 which serves to deflect the central jet forwardly and outwardly toward the casing 2 of the apparatus and the grating 62.
Patent GB-329966-A (GB)
Title: Improvements in or relating to armour piercing projectiles
IPC: F42B30/00
Filed: 1929-02-27
Abstract: 329,966. Strang, H. B., and Green, H. Feb. 27, 1929. Projectiles. - The base of an armourpiercing shell is provided at its edge with a number of slots c extending radially and longitudinally to prevent the wrenching off of the rear end of the projectile when it passes obliquely through an armour plate.
Patent GB-1435036-A (GB)
Title: Collection and cleaning of dusty gases evolved on the coke side  of a coke oven
IPC: C10B33/00
Filed: 1974-02-12
Abstract: 1435036 Confining and removing dust and like waste products in industrial processes HARTUNG KUHN & CO MASCHINENFABRIK GmbH 12 Feb 1974 06412/74 Heading F4X A system for collecting and cleaning gases  evolved when a coke guide 80 ejects coke from a coke oven into a car 93 moving parallel to the ovens on a track 92, comprises a main collector hood 109 which spans the zone of discharge of coke into the car 93, and is connected to Venturi scrubbers 100-105, the hood and scrubbers being transportably mounted on running gear (e.g. rollers 90 and bogies 85a) disposed at each side of the coke car track 92. In the arrangement shown the running gear includes a frame (108, Fig. 4) tenders 81, 82, Fig. 5, one at each end of the coke guide 80, and a carriage 86 of U-shaped construction pivotally connected at 87 and 88 to the tenders 81, 82. The hood 109 has an extension 111 this being provided with gas extraction openings such as 115, 118 and 120 connected by ducting to scrubbers 104, 105 whilst other openings such as 129, 130 at the upper part of the hood 109 are connected by ducting to scrubbers 101, 102, and other openings 123 from the hood are connected to scrubbers 100, 103. Above the coke guide 80 is a second hood 112 connected by ducting 125 to the scrubber 100. Gas entry into the hood 112 is via openings 114 (see also Fig. 7) on its underside, said to reduce wind effects. The hood 109 may comprise a skeleton framework (Fig. 9) covered by individually replaceable rectangular steel plates. Fresh water is withdrawn from a trough 95 through a conduit 97 and passed via the scrubbers to steam raising plant 98, 99 mounted on the tender 81. Water containing the dust precipitated into the scrubbers from the gases, is collected in a trough 96.
Patent GB-225103-A (GB)
Title: Improvements in adjustable brackets
IPC: A47B57/04
Filed: 1924-03-12
Abstract: 225,103. Pollard & Co., Ltd., E., and Pollard, E. March 12, 1924. Brackets, adjusting and securing.-A bracket adjustable in position on a vertical standard B having a row of holes in which a pin D on the bracket is inserted has two lugs E,E<1> which embrace the front and rear edges of the standard, one, E<1>, of these lugs being provided with an adjusting screw F by which the bracket may be adjusted angularly. The front end of the bracket may have an adjustable extension piece H to accommodate shelves of various widths.
Patent GB-296793-A (GB)
Title: Improvements in and apparatus for use in the treatment of carbonaceous matter for the obtainment of products therefrom
IPC: C10G1/02
Filed: 1927-03-08
Abstract: 296,793. Dvorkovitz, P. March 8, 1927. Coking processes.-Coal or other carbonaceous substance is distilled to obtain oils of the paraffin series by being first heated in retorts B, B<1> the residue from which is passed through valves c into retorts C, C<1> from which heavier oils are obtained. The retorts are externally heated by the hot gases from a furnace E, and gases such as hydrogen, water gas, producer gas or coal gas are heated in a coil H' and passed by pipes h<1> through the charge which may be kept in agitation by a screw or conveyer G. The distillates are withdrawn from each stage through conduits J, K. Specification 192,816 is referred to.
Patent GB-555102-A (GB)
Title: Improvements relating to coil winding machines
IPC: H01F41/06
Filed: 1942-05-14
Abstract: 555,102. Winding coils. PARR, B. A. May 14, 1942, No. 6543. [Class 120 (iii)] In a coil winding machine wherewith relative rotary speed between the bottom to be wound and the traverser lead screw or screws is adjusted in accordance with the diameter of the wire being wound by an infinitely variable gear, a pointer which indicates the position of the adjustable member of the variable gear reads against a main scale calibrated in wire core diameters and a subsidiary scale calibrated in types or thickness of core covering and either the pointer or the main scale is adjustable relatively to the subsidiary scale. As shown the adjustable member 3 of the variable gear 1, 2, 3 is mounted in the arm of a carrier member 5 which is adjustable vertically by a screwed shaft 6 rotated by a head 7 carrying indicia 8 corresponding to wire core diameters; the pointer 9 is adjustably mounted on the member 5 and carries a subsidiary pointer 11 associated with a subsidiary scale 12 bearing indicia 13 corresponding to the core coverings that may be used. In use, the pointer 11 is first adjusted to the indicium 13 corresponding to the covering being used and the head 7 is then rotated until the pointer 9 reads against the indicium 8 corresponding to the diameter of the wire core being wound.
Patent GB-417979-A (GB)
Title: Improvements in or relating to reciprocating compressors
IPC: F04B39/08
Filed: 1934-03-02
Abstract: 417,979. Air compressors. SULZER FRERES SOC. ANON., Winterthur, Switzerland. March 2, 1934, No. 6719. Convention date, March 4, 1933. [Class 8 (i).] In a double acting compressor with cylinders in tandem, a single valve rotatable on an axis parallel with the cylinder axis controls the inlet and outlet from both working chambers of each cylinder. Two double acting pistons 5, 5a, arranged in tandem in cylinders 6, 6a drive a crank shaft 2 which actuates the spindle 9 of a rotary valve 30. The valve is open at the top to an inlet pipe 12, and has peripheral ports 32 which on the upward suction stroke register with passages 33, 34 leading to the lower ends of the cylinders 6a, 6. The compressed gas in the upper ends of the cylinders flows through passages 35, 36 and valve ports 37 and discharge port 39. The valve ports associated with each cylinder are spaced apart angularly 90‹, and the valve is rotated at half crankshaft speed. The passage from each cylinder end may be branched to terminate in two ports angularly displaced 180‹ whereby the valve is balanced in respect of radial pressures. When the cylinders constitute different pressure stages, the valve is divided by a disc and the lower stage delivery port is arranged to effect communication with the higher stage suction port. The valves may be formed from sheet metal, the outer cylinder 51 and partition plates 52 being welded to radial supports 49, 50 carried by the sections 47, 48 of the spindle 9. Intermediate ported stiffening plates 55, 56 are also used. Central plates 53, close the inner space which is open at the ends 54 to the inlet chamber 60.
Patent GB-882717-A (GB)
Title: Improvements in and relating to mica insulating material
Inventor: MCMILLAN PETER WILLIAM
IPC: H01B3/04
Filed: 1957-02-28
Abstract: A mica insulating material is formed by coating mica splittings with finely divided powdered alkali-free glass and then heating the assembly under pressure to a temperature sufficient to fuse the glass followed by cooling to bond the mica particles.  The mica splittings and the powdered glass are preferably suspended in a liquid, from which they are removed together by a settling or filtering process such as filtering through a permeable base, after which the sheet so formed is dried.  Such a suspension may be acidified for example with hydrochloric acid of N/50 strength, which strengthens the sheet.  The amount of glass may be from 2,5-50% by weight of the glass mica mixture.  According to an example, mica splittings of thickness 1-60 microns and length of 0,1-8 millimetres are suspended in water together with glass powder, the major proportion of the particles of which was between 0,076 and 0,2 millimetres in diameter, and which was composed of BaO, Al2O3, B2O3 and SiO2\t or PbO, ZnO, B2O3 and SiO2.  The suspension was then filtered through a water-permeable backing, dried and then placed between platens where it was heated at pressures of 5-2000 p.s.i.g. and the temperatures from 800-900 DEG C; the product was removed and cooled.
Patent GB-374120-A (GB)
Title: Improvements in or relating to public address systems or the like
IPC: H04R5/02
Filed: 1931-03-04
Abstract: 374,120. Public address systems &c. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.- (Assignees of Hopkins, H. F. ; 156, Cypress Avenue, Bogota, New Jersey, U.S.A.) March 4, 1931, No. 6760. Convention date, March 4, 1930. [Class 40 (iv).] In public address, gramophone recording or broadcasting systems, the microphone 1 which is mounted in a panel of artificial resin is carried by the speaker and the resulting over-emphasis of the lower frequencies is corrected by giving the microphone, which is preferably of a type shown in U.S. Specification 1,660,990, a rising characteristic, by providing an attenuation equalizer or, as shown by putting the microphone in a local circuit and coupling it to the line by a transformer 6 which owing to the small size of its core transmits imperfectly below 150 cycles. This arrangement has the additional advantage that no clicks are produced when the speaker, who is connected to the transmission line via contacts on his shoes and on the floor, moves from one pair of contacts to another.
Patent GB-550219-A (GB)
Title: Improvements relating to clutch mechanism of the boring or drilling spindles of horizontal boring or drilling machines
IPC: F16D23/04
Filed: 1942-05-20
Abstract: 550,219. Claw clutches. KEARNS & CO., Ltd., H. W., and KEARNS, H. W. L. May 20, 1942, No. 6847. [Class 80 (ii)] [Also in Group XXII] In a horizontal boring, drilling, facing and milling machine in which the spindle d is driven either directly by a belt pulley e or indirectly through a change speed train driving the sleeve g, the spindle is brought to the speed of the pulley or sleeve prior to the engagement of claw clutches e' or g' by a friction clutch e<SP>2</SP> or g<SP>2</SP>. The friction clutch sleeve j is supported clear of the spindle by rings n', n<SP>2</SP> keyed to the sleeve by the shouldered ends of the feather key m that transmits drive to the spindle. Axial feed of the spindle is thus prevented from shifting the sleeve j. The claw clutch sleeve i is splined to the sleeve j at k and carries a spring V-end bolt l that engages a notch in the key k. When the sleeve i is moved by a yoke engaging the groove i<SP>3</SP> the appropriate friction clutch first brings the spindle to speed and then the bolt l yields permitting the engagement of the dog clutch.
Patent GB-249141-A (GB)
Title: A new or improved process and apparatus for the production of artificial threads from cellulose derivatives
IPC: D01F2/30
Filed: 1926-03-11
Abstract: 249,141. Vereinigte Glanzstoff-Fabriken Akt.-Ges. March 12, 1925, [Convention date]. Apparatus for making filaments.- In the dryspinning of artificial threads, the filaments are spun downwardly into an unheated atmosphere, that is, the spinning cell is not heated, while a current of air passes through the cell in the same direction as the filaments; the freshlyspun thread is subsequently passed into a heated cell in order to free it from residual solvent. By the heating the threads are caused to assume a glossy appearance. As shown, the filaments are spun downwardly in a cell 1, normally pass to a guide 4, and leave the cell through an opening 5; through the cell passes a current of air entering at openings 7 near the spinning-nozzle 3, travelling with the threads, and leaving through the exhaust pipe 8. The heating-chamber 2 is arranged adjacent to the spinning-cell 1, being provided with a winding-device 16, heating devices 15, air inlets 13, and exhaust piping 14. The cell and chamber are fitted with doors 9 - - 12. At starting the filaments are collected at a guide 4<1>. Instead of the heating-chamber shown, the threads either freely or upon a carrier, may be passed through a heating-cell, and subsequently reeled upon a device located outside the cell. The Specification as open to inspection under Sect. 91 (3) (a) includes broadly the employment of an unheated spinning cell and heating the threads after leaving the spinning cell. This subject-matter does not appear in the Specification as accepted. Specification 236,393 is referred to.
Patent GB-108691-A (GB)
Title: Improvements in Strip Printing Photographic Apparatus.
Inventor: GROSSI SPIRIDIONE
IPC: G03B27/58
Filed: 1916-05-15
Abstract: 108,691. Grossi, S. May 15, 1916. Enlarging.-Relates to enlarging-apparatus adapted to produce, from cameras containing several negatives, including fixed name- and-address negatives, a large number of repeats upon sensitive sheets of paper stacked in piles and arranged for intermittent feeding. Below the camera is a travelling-box A, manually displaceable in a frame B against the action of a, spring- roller C tending to wind upon itself a cord D attached to the box. Within the box are six piles of sensitive paper E, in lengths extending from end to end of the box and pressed upwards, by springs G and boards F, against retaining angle-pieces H, so that as the spring-roller and cord co-operate with a manually operated pawl K and rack L to step the box along from left to right, photographs may be taken in each position. A vignetting-device V may be arranged upon a frame M, which has slides for sheets of blue glass employed tn adjust the light to the negatives, and hinged flaps (not shown) for cutting-off particular negatives. Associated with tins frame is a shutter slidable over the paper. by means of a pedal R, sprocket wheel S, and an endless chain, a drum P may he rotated so as to draw down the spring boards F thus allowing the top sheets to be removed. Accesory features include a negative strip U, with a spring U<1>, for printing a number upon the first exposed portion of each strip, which is displaced subsequently automatically until the box returns to initial position. For vignetting the sides of the photographs there may be a, second hinged frame above the first, with a series of opaque bars, out of focus, covering the spaces between the piles of sheets.
Patent GB-230993-A (GB)
Title: Improvements in variable electric condensers
Filed: 1924-03-18
Abstract: 230,993. Yoward, H. A. March 18, 1924. Condensers.-In condensers in which capacity is varied by the displacement of mercury or other conducting liquid, the fixed elements comprise metal plates 13, 14 separated by sheets of mica 1, 2 spaced apart by an insulating frame 3 so as to form a compartment 12 into which mercury 9 may be forced. The mercury is supplied from a collapsable chamber of rubber, leather, or like flexible material 10 adapted to be compressed by a screw 15 bearing on a plunger 16 and provided with an operating knob 20. In a modification, the chamber and its plunger are of elongated rectangular shape, and the space between the mica sheets 1, 2 is divided into two compartments by a third sheet of mica disposed between the sheets 1, 2 and spaced therefrom. In a further form, Fig. 8, the mercury is normally contained in a chamber formed by a hole 24 in a block of ebonite 28 on which the fixed plates 13, 14 are mounted, the hole 24 being covered by a rubber or like diaphragm 10 against which bears a plunger 16 carried by a spring arm 25 and operated by the adjusting screw 15. According to the Provisional Specification, the condenser may comprise a series of electrically connected tin foil sheets disposed between sheets of mica and spaced apart by a frame to form a series of chambers into which mercury may be forced to a variable extent.
Patent GB-783201-A (GB)
Title: Improvements in or relating to necklaces and the like
IPC: A44C11/00
Filed: 1955-03-10
Abstract: 783,201. Necklaces, bracelets, and other chain jewellery. PRESTA JEWELLERY PRODUCTS, Ltd., and GRANBY, P. H. March 9, 1956 [March 10, 1955], No. 7107/55. Class 43 Necklaces, bracelets and similar chain structures or articles of jewellery comprising a plurality of cup-shaped holders 1 interconnected by links 5 and each constructed to have a gem or stone secured within it by claws 3 at its top end are adapted to prevent the end of a link 5 from coming into contact with the bottom surface of the stone whenever the chain structure is flexed, by providing a pair of aligned apertures in the opposite walls of each holder 1, each aperture having an inwardly directed lug 4 disposed immediately above it, the ends of the connecting links 2 being inserted through the said apertures and captively located within the holders, between the bases of the latter and the lugs 4. The side walls of the cupshaped holders 1 are pierced to provide the aligned apertures for the links and each of the displaced portions of the walls is bent upwardly to form a lug 4 lying parallel to, but spaced from, the base of the holder. In order that the links may be located captively in position within their respective holders they are provided with enlarged end portions 6 formed by flattening them in known manner.
Patent GB-313198-A (GB)
Title: Manufacture of stable, highly acetylated cellulose acetate
IPC: C08B3/06
Filed: 1928-03-07
Abstract: 313,198. Jurling, J. G. March 7, 1928. Cellulose carboxylates.-Cellulose triacetate, soluble in chloroform and insoluble in acetone, is obtained by fully esterifying cellulose in the presence of sulphuric acid or a derivative thereof as catalyst, and then destroying the excess of acetic anhydride and allowing the mixture to stand until the sulphuric residue in the cellulose ester molecule has been replaced by the acetyl group, the product being separated from the solution before change in solubility &c. has occurred. The removal of excess acetic anhydride may be effected by esterification by means of alcohol, or by conversion into acetic acid by means of water; the amount of water used should not greatly exceed the theoretical, since excess of water both decreases the velocity of the replacement reaction and causes hydrolysis. The resulting product is stable, water-resistant, and of high charring-point, and may be employed in the manufacture of artificial silk, films, varnishes, &c. Examples are given, in which the stabilization is effected by means of water in varying proportions and by means of ethyl alcohol. For the production of artificial silk the stabilized solution may be mixed with acetic acid and sodium acetate to render the sulphuric acid inactive and spun into an aqueous acetic acid bath at 9‹ C.; or the precipitated stabilized product may be dissolved in formic, acid and spun into water; films may be prepared by dissolving the precipitated stabilized product in a mixture of benzene, methyl formate, and ethyl tartrate.
Patent GB-1091776-A (GB)
Title: Improvements in motor vehicle tyres
IPC: B60C11/00
Filed: 1965-02-19
Abstract: 1,091,776. Pneumatic tyres. INVESTMENT IN PATENT DEVELOPMENT S.a.r.L. Feb. 19, 1965 [March 11, 1964], No. 7230/65. Heading B7C. In a pneumatic tyre with a circumferential rib P 1  unreduced by grooving on its outboard shoulder A, the shoulder A is of skid-resistant rubber and the remainder B of the tread is of abrasion-resistant rubber and is reduced by circumferential grooving and other intermediate grooving having a component of direction extending axially of the tyre. A circumferential rib P 2  extends with its mid-plane coincident with the tyre mid-plane or (see Fig. 3, not shown) wholly on the opposite side of the tyre to the rib P 1 , the rest of the part B of the tread being divided into rows s 1 , s 2 , s 3  of individual blocks. The circumferential grooves r 1 -r 4  and intermediate grooves (q 1 -q 3 ) (Fig. 1, not shown) increase in both width and depth from the outboard to the inboard side.
Patent GB-540615-A (GB)
Title: Improvements in and relating to bearings and bearing surfaces
IPC: C25F3/06
Filed: 1940-04-22
Abstract: 540,615. Electrolytic treatment of bearing surfaces. VANDERVELL PRODUCTS, Ltd., and GREEN, D. F. April 22, 1940, No. 7231. [Class 41] The mechanically-produced amorphous or Beilby layer is removed electrolytically from the surfaces of metallic bearings. The bearing part acts as anode with a cathode of conforming shape. In examples, for steel is used an electrolyte containing aluminium derived by dissolution of ari anode in acetic anhydride and perchloric acid, at up to 30‹C and with a current density of 4-6 amps per sq. dm., and for bronze is used as electrolyte orthophosphoric acid in water. The removal of the Beilby layer tends to ensure adherence of a thin film of oil to the bearing surface.
Patent GB-1177815-A (GB)
Title: Device for Cleaning with Liquids Surfaces of Workpieces
IPC: B65G49/04
Filed: 1967-02-15
Abstract: 1,177,815. Cleaning metal articles. NAUCHNO-ISSLEDOVATELSKY INSTITUT TEKHNOLOGII AVTOMOBILNOI PROMYSHLENNOSTI. Feb.15, 1967 [March 28, 1966], No. 7250/67. Heading C7E. Articles, e.g. castings, are cleaned in a perforated drum 1 having a cleaning part 2, in a bath 5, and a rinsing part 1 in a bath 4. The cleaning part 2 may be split into three chambers by portions 10<SP>1</SP> each chamber having scroll-shaped members 11, 12, 13, alternately of opposite sense. The rinsing part 1 also having a scroll-shaped member 23 of opposite sense to that of member 11. The articles are fed along a chute 22 to the cleaning chambers, and on reversing rotation of the drum the articles in alternate parts are fed forwards while those in the other parts are treated. The cleaning solution is heated by hot gas in coils 21.
Patent GB-166626-A (GB)
Title: Improvements relating to boxes, trunks or like receptacles
IPC: B65D51/26
Filed: 1920-03-11
Abstract: 166,626. Fausset, W. M. March 11, 1920. Fittings, internal; partitioned boxes. - A box. trunk, &c. is provided with means for holding in any desired position one or more shelves, trays, &c. f, the means comprising pivoted racks b, urged inwardly by springs d, arranged at the four vertical corners of the box, and adapted to engage the corners of the shelves, which are fitted with metallic edgings f<1>. According to the Provisional Specification, fixed racks may be fitted on two opposite sides of a box &c. and engaged by pinions mounted at the corners of the shelves &c., catches being provided for preventing rotation of the pinions and so retaining the shelves &c. in any desired position. An arrangement of threaded vertical corner spindles passing through the trays and adapted by being turned to raise or lower them, is also described.