baber/WOPTO huggingface dataset:
Patent GB-1064319-A (GB)
Title: Improvements in or relating to spot type disc brakes
IPC: F16D55/00
Filed: 1964-06-16
Abstract: 1,064,319. Disc brakes. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALFRED TEVES MASCHINEN-UND ARMATURENFABRIK KOMM. GES.]. June 16, 1964 [July 18, 1963; July 27, 1963], No. 24907/64. Heading F2E. In a disc brake having a fixed casing 4 straddling an axially floating disc 1, and an actuating lever rockable about a pivot pin 17 on the casing, either manually or by an hyhydraulic piston 27 operating in a bore of the casing, to apply a first pad 7 to one face of the disc via a strut, so that the disc is gripped between the first pad 7 and a second pad 7 abutting arm 13 of the casing on the opposite side of the disc, automatic adjustment for pad wear is provided by forming the strut from a sleeve 19 and stud 20 in screw-threaded engagement, and by providing a pawl in the form of a leaf spring 24, attached to the lever at 25 and wrapped around the sleeve so that its free end 23 engages with a ratchet surface 22 on the sleeve, the sleeve 19 and spring 24 being located in a recess 18 in the lever. The pads 7 are carried on backing plates 8 which are mounted on pins 10 held in place by cotter-pins 14 so that on removal of the pins the pads can be removed in a circumferential direction.
Patent GB-1224455-A (GB)
Title: A process for producing a high wet modulus viscose rayon
IPC: D01F2/06
Filed: 1969-05-15
Abstract: 1,224,455. High wet modulus viscose rayon. NITTO BOSEKI CO. Ltd. 15 May, 1969 [23 May, 1968], No. 24907/69. Heading B5B. Production of a high wet modulus crimpable viscose rayon comprises spinning a viscose solution which has a salt point of up to 7 and a γ-value of up to 57 which has been xanthated by 29 to 35% w./w. based on cellulose of carbon disulphide and which contains at least 0À1% and preferably less than 10% w./w. based on cellulose of at least one aliphatic or alicyclic C 1  to C 6  monoamine or the equivalent percentage of the alkylene oxide derivative of such amines containing preferably 3 moles of ethylene oxide, one or more zinc compounds such that there is at least 0À1% and preferably less than 10% w./w. of zinc based on the cellulose, said zinc compounds being at least 0À05% soluble in water or in aqueous sodium hydroxide, and preferably at least 0À1% and not more than 10% w./w. based on the cellulose of a polyethylene glycol of preferred mean M.W. of 800-1700. The zinc compounds incorporated into the viscose solution may be selected from sodium zincate, zinc acetate, zinc sulphate, zinc oxalate and zinc orthophosphate. The viscose rayon is spun into a sulphuric acid/sulphate coagulating solution containing a trace to 0À8% w./w. anhydrous zinc sulphate.
Patent GB-593192-A (GB)
Title: Improvements in or relating to wrapping machines
IPC: B31B50/00
Filed: 1944-12-12
Abstract: 593,192. Wrapping-machines. NEWTON, E. P. (Bronander, W. B.). Dec. 12; 1944, No. 24930. [Class 94 (i)] In a wrapping-machine feeding and cutting means are provided for forming the wrapper and attaching to it a tear strip 25 which is made so as to extend at 76, Fig. 9, beyond the wrapper to facilitate opening of the wrapper. As shown at Fig. 1 the tear strip 25 is fed from a roll T through a guide 26 to feed rollers 27, 28 one of which has a gap 29. The strip passes over a heating bar 32 before and after passing a wick 36 supplied with adhesive from a reservoir 37. The wrapper band 45 passes from a roll W to rollers 46, 47 which coact to form an H-shaped cut and form two flaps 51, 52 in the web as shown in Fig. 9, the strip 25 being secured across the vertical slit and being arranged parallel to the horizontal slits. The join is effected by rolls 55, 57, and roll 55 is formed with a pocket 56 into which the strip 25 and flaps 51, 52 are forced by a stud 65 on roll 57 forming a loop in the tear strip as indicated in Fig. 5. A knife 66 on a further roll 67 which coacts with roll 55 severs the tear strip at the rear end of the loop to form the extension 76. The united strip 25 and web 45 are then fed by rolls 70, 71 to a fixed cutting- blade 73 with which coacts a rotary blade 72, formed with a gap 75, Fig. 4, not shown, which straddles the tear strip 25 and flaps 51, 52. The complete wrapper is wrapped in known manner around the articles 22 supplied by a conveyer 2a. Specification 472,388 is referred to.
Patent GB-532437-A (GB)
Title: Improvements in and relating to the spraying of liquids
IPC: B05B7/04
Filed: 1939-08-31
Abstract: 532,437. Spray guns. LUMB, C. F. Aug. 31, 1939, No. 24977. [Class 69 (iii)] A spraying gun &c. comprises a main nozzle through which material can be sprayed in an atomized state and an auxiliary nozzle through which a variable amount of compressed air can be delivered into the material sprayed at the point of exit from the main nozzle. The material is fed through the duct b into the chamber b<SP>3</SP> by the action of compressed air delivered from duct e through a jet g and the material is sprayed at the nozzle end of the duct h. An auxiliary nozzle is formed by a sleeve l screwed into the gun. The compressed air passes through the ducts f<SP>1</SP>, f<SP>2</SP> into the chamber surrounding the main nozzle and emerges at the exit of the main nozzle. The quantity of compressed air is varied by screwing the sleeve l to vary the effective size of the duct f<SP>2</SP>.
Patent GB-1299936-A (GB)
Title: Semiconductor resistor
Inventor: LUBART N D
IPC: H01L29/8605
Filed: 1970-05-26
Abstract: 1299936 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 26 May 1970 25054/70 Heading H1K A semi-conductor resistor, particularly for use in integrated circuits, comprises a region 14 of one conductivity type having spaced contacts 21 on its surface 11, and at least one blocking region 17 adjacent each contact and extending into the region 14 from the surface 11 so as to direct the current flow between the contacts. The blocking regions 17 may be diffused regions of opposite conductivity type to the region 14. Alternatively the blocking regions may be of highly resistive, e.g. epitaxially deposited, material, or etch pits containing dielectric material. The body 10 may be of silicon with phosphorous, arsenic, antimony, aluminium, boron, indium or gallium dopants. The contacts may be of aluminium or chromium, and an insulating layer 19 of silicon dioxide may be present on the surface. In an alternative embodiment each contact 21 may overlap the associated region 17 to prevent any diode action taking place. The arrangement is stated to direct current flow away from the surface to reduce current density at the surface. and also positioning of the regions 17 can determine the resistance of the arrangement.
Patent GB-743570-A (GB)
Title: Seat-supporting structures for mounting on roofs of motor cars and the like
IPC: A47C9/10
Filed: 1953-09-10
Abstract: 743,570. Folding seats. BALFOUR, L. M. J. Aug. 31, 1954 [Sept. 10, 1953], No. 25093/53. Class 52(2). [Also in Group XXXII] Each of a pair of seats for fitting to a structure to be mounted on the roof of a vehicle (see Group XXXII) comprises front and rear members 40, 41, joined by members 42, 43, 44, and legs 54 which are normally folded under the seat. Slats 45 extend across the members 42, 43, 44 to form the seating surface. Clips 53 are provided on the members 40, 41 to clip on to tubes forming part of the seat-supporting structure. The back of the seat is hinged so as to fold forwardly when not in use. Instead of slats 45, stretched canvas may form the seating surface.
Patent GB-631716-A (GB)
Title: Improvements in or relating to electro-magnetic devices
IPC: H01H51/28
Filed: 1947-09-15
Abstract: 631,716. Electromagnetic relays. STANDARD TELEPHONES & CABLES. Ltd., CHILDS, P. A., HARTLEY, G. C., and WEBB, L. H. Sept. 15, 1947, 25159. Drawings to Specification. [Class 38(v)] The subject matter of this Specification is all disclosed in Specification 631,713 but the claims differ.
Patent GB-727550-A (GB)
Title: Pressure-containing flexible waveguides
Inventor: CARR ROBERT SIMMONDS
IPC: H01P3/14
Filed: 1953-09-14
Abstract: 727,550. Wave-guides. AIRTRON, Inc. Sept. 14, 1953, No. 25367/53. Class 40 (8). A flexible wave-guide capable of sustaining internal fluid - pressure comprises a conductive, spirally-corrugated core 13 and an outer fluidtight jacket 15. The core is made by winding a grooved strip of conductive material upon an arbor, adjacent turns being interlocked and soldered together along a continuous seam 18. Flanges 12 are attached in a fluid-tight manner, e.g. by soldering, to either end of the core. Wrapped around the core is a sheath 14 which is made of rubber, tin foil, aluminium foil, or other thin, pliant material which will not adhere to the bore. An impervious, flexible, insulating jacket 15 which may be reinforced with e.g. fabric, is moulded around the sheath 14 and attached in a fluid-tight manner to the flanges 12. In order to equalize the pressure on either side of the core 13 perforations 19 are made in the bottoms of the core corrugations along the centre line of the broad side of the guide. The jacket may be surrounded by an outer sheath made of braided material or of a spirally-wound fabric tape. In a modification (Fig. 5, not shown) the sheath 14 is surrounded by an additional sheath of braided material which becomes intimately associated with the inner surface of the jacket 15 when this is moulded in position. In a further modification (Fig. 7, not shown), the aforementioned braided sheath replaces the sheath 14 which is omitted from the structure.
Patent GB-461514-A (GB)
Title: Improvements relating to protectors for the boots and feet of iron moulders and other workers
IPC: A43B3/20
Filed: 1935-09-12
Abstract: 461,514. Foot-guards. WILLEY & CO., Ltd., UNITED GAS INDUSTRIES, Ltd., and HITCHEN, C. H. Sept. 12, 1935, No. 25394. [Class 17 (ii)] A guard for wear over the footwear to protect the feet of iron moulders and other workers comprises a blank a of leather or similai strong flexible material bent to cover the front and sides of the foot and provided with an open ended contract ible spring clip b, the ends b<1> of which, when the device is in position, engage be hind or beneath the ankle. Elastic sleeves, f, e.g. of rubber, may be provided on the ends of the clip to enhance the gripping effect. A similar clip c or a leather strap holds the lower end of the device in position.
Patent GB-171232-A (GB)
Title: Improvements in and relating to glass working machines
IPC: C03B23/09
Filed: 1920-09-03
Abstract: 171,232. British Thomson - Houston Co., Ltd., (General Electric Co.). Sept. 3, 1920. Forming vials, lamp glasses, and the like. - Relates to a machine for flaring the ends of glass tubes and particularly those used in the manufacture of electric lamps. The apparatus according to the invention comprises an intermittently rotating head 32 carrying six rotary chucks 34. The glass tubes are fed singly through a fixed guide tube 56 to the chuck occupying the position A. As the head 32 rotates clockwise, the ends of the glass tubes are rotated by the chucks 34 in contact with the flames P and, in the position E, are acted upon by a cam-operated flaring tool 107. The tubes are discharged at position F.
Patent GB-1117463-A (GB)
Title: A slotted tray for a fractioning column
IPC: F28C3/06
Filed: 1965-06-16
Abstract: 1,117,463. Gas/liquid contact tray. KRALOVOPOLSKA STROJIRNA ZAVODY CHEMICKYCH ZARIZENI NARODNI PODNIK. 16 June, 1965 [27 June, 1964], No. 25476/65. Heading B1R. [Also in Division F2] A valved gas/liquid contact tray 7 has elongated parallel slots each or adjacent slots being covered by a cap 2 non-rectilinear in cross-section and having downwardly-bent tongues 3 formed from the marginal portions of the cap at spaced intervals along the length to project through a slot and which carry travel-limiting strips 4. Upwardly-bent tongues 8 may be formed in portions of the caps between tongues 3. The cross-section of the cap shown may be modified by a central downwardly carried portion (Fig. 10, not shown) or it may be angled and not curved (Fig. 9, not shown). In a modification tongues 3 may be replaced by downwardly extending pieces screwed to the underside of the cap. Such pieces having the stop means integrally formed therewith. In one such form (Fig. 13, not shown) the stop;means are such that the cap can assume a tilted position. The caps on different trays may have different weights and also be non-uniformly weighted. The caps may have apertures and the slots have tongues bent downwardly from the side at spaced intervals along their length and modifications without tongues 3 may have small downwardly projecting tongues at their longitudinal edges to maintain the caps above the tray in their rest position.
Patent GB-626485-A (GB)
Title: Improvements in or relating to bicycles
IPC: B62K3/12
Filed: 1946-08-28
Abstract: 626,485. Tandem bicycles. DUGGAN, W. Aug. 28, 1946, No. 25691. [Class 136 (iii)] A tandem bicycle supports the additional saddle on a triangulated frame, the rear wheel axle having a crankshaft 29 provided with a second pair of cranks 28 power from which is transmitted by a chain 39 to the usual crank axle 15 which is connected in the usual way by a chain 37 to a sprocket wheel 36 on the rear hub, the rear wheel and sprocket wheel 36 are carried by anti friction bearings on a non-rotatable discontinuous rear wheel shaft, one part of which passes through the hub shell into and is mounted in one side of the rear wheel forks and another portion is mounted in the opposite side of the forks, the rear crankshaft passes through the rear wheel shaft and carries a second sprocket 41 which through the intermediary of the second chain drives a sprocket of the same size 40 secured to the main crankshaft. The bicycle has an auxiliary saddle 23 supported on forks 24 by a framework 13, 25, 26. The rear wheel shaft 30 is made in two parts 30a and 30b, the sprocket 36 is mounted on the part 30 which extends within the hub shell 35 and the sprocket 41 is mounted on the other part 30b. and is enclosed but for an exit gap 45 for the chain 39 by plates 42, 43, 44 which also connect the two parts of the wheel shaft. Axial adjustment of the rear wheel is effected by nuts 48 and 52. The tension of the chain 39 is adjusted by means of an idler sprocket 46 connected to the rear fork 14. To enable the horizontal fork 14 to be lengthened an extension bracket is connected to it carrying the forks 13, 24 and 26. The tandem bicycle can readily be converted into a solo bicycle.
Patent GB-257045-A (GB)
Abstract: 257,045. Fyfe, J., and Fyfe, A. J. June 11, 1925. fixed-chamber ap. paratus, v a r y i n g quantity measured in.-An apparatus for measuring off and delivering liquid such as petrol consists of a container a with a telescopic overflow and delivery pipe b b<1>, the part b<1> be. ing lowered by a shaped rod h<1>, after the container has been filled, to such positions, controlled by movable stops d, as will ensure the delivery of the dedesired quantity of liquid. The tube b<1> is raised to its highest limit, and the uppermost or zero stop d is swung into co-action with the stop i on the rod h'. The container is filled by a pump c or by gravity, the quantity entering be. ing denoted by a disc e<2> which rises in a graduated cylinder e as the float f rises. Filling is continued until the liquid overflows down the pipe b', b, and a three-way cook m in its overflow position. The overflow is observed through the window l. The cock m is then shut, and measured quantities, of say, one-half to five gallons are withdrawn by opening it to the discharge position and lowering the pipe b<1> until the stop i coacts with one of the movable stops ¢ to 5 on the rod j. A plumb-bob q is suspended on the apparatus. The upper end of the tube b<1> is blocked, and side openings n in it are covered by cowls. Each of the stops d has an adjustment screw j<2>, which is wired and sealed after verification.
Patent GB-1113644-A (GB)
Title: Papermaking process
IPC: D21C11/10
Filed: 1966-06-09
Abstract: A polymer used for treating black liquor, (see Divisions D1-D2), is made by copolymerizing styrene and maleic anhydride in proportions of 3 to 1:1, hydrolysing with mineral acid to free acid or carboxyl groups and neutralizing with alkali metal hydroxide or producing the salt derivatives directly by basic hydrolysis, the M.W. of the product is below 10,000, the polymer can be mixed with potassium pyrophosphate, water, bisulphited tannin and sodium lignosulphonate.ALSO:Black liquor is prevented from forming deposits on metal surfaces of a multiple effect evaporator by treating it at any point prior to completion of the evaporation with a polyalkane of m.w. less than 10,000 which contains 25-50 mole per cent recurring groups of formula <FORM:1113644/C1/1> and 50-75 mol. per cent of recurring groups of formula <FORM:1113644/C1/2> R1 and R2 each may be carboxyl, alkali metal or ammonium carboxylate.  At least 0.1 ppm. of the polyalkane, e.g. hydrolysed styrene maleic anhydride copolymer may be added to the liquor.  The polymer may be used in an aqueous or alcoholic solution which may contain dispersants such as lignins, e.g. sodium lignosulphonate, tannins or sodium or potassium pyrophosphates.ALSO:Black liquor is prevented from forming deposits on metal surfaces of a multiple effect evaporator by treating it at any point prior to completion of the evaporation with a polyalkane of m.w. less than 10,000 which contains 25-50 mole % recurring groups of formula <FORM:1113644/D1-D2/1> or <FORM:1113644/D1-D2/2> and 50-75 mol % of recurring groups of formula <FORM:1113644/D1-D2/3> p  R1 and R2 each may be carboxyl, alkali metal or ammonium carboxylate.  At least 0.1 ppm of the polyalkane, e.g. hydrolysed styrene-maleic anhydride copolymer may be added to the liquor.  After concentration the black liquor may be burnt and the inorganic material recovered e.g. as carbonates, sulphides, sulphites, sulphates and silica.  The polymer may be used in an aqueous or alcoholic solution which may contain dispersants such as lignins, e.g. sodium lignosulphonate, tanins or sodium or potassium pyrophosphates.
Patent GB-207793-A (GB)
Title: Improvements in photographic enlargement apparatus
IPC: G03B27/32
Filed: 1923-10-16
Abstract: 207,793. Boucard, P. Nov. 28, 1922, [Convention date]. Enlarging.- In a vertical enlarger, the lamp and camera are supported on an upright 10, Fig. 1, which is adjustably mounted by a bracket 7 on a pillar 1. This pillar 1 is clamped in a socket 2 on the projecting table 3 by a screw 4 and auxiliary tie members 5 adjusted by wing-nuts 6 are provided. A similar member 11 extends between the uprights 1, 10. The lens board 18 is vertically adjusted on a supporting tube 14 by a screw-threaded rod 15 with an operating handle 16. An opal lamp-bulb, and a condenser consisting of two piano-convex lenses are supported in light-tight casings 21, 25, having a ventilator 26, from the upright 10 by brackets 19, 20 having supporting braces 22. The negative holder is inserted between a plate 23 carrying the bellows and the bracket 19. The lower end of the upright 10 carries a ruby lamp 35. Focussing scales are provided on the uprights 1, 14. The printing paper may be held on the projection table 3, which has lines thereon representing the usual sizes of the printing papers, by two springs 28, 29, Fig. 2 pivotally and slidably supported at one end on a rod 31, and locked in position at the other end by slidable sleeves 32, with tongues 33 engaging a slot 34 in the table 3.
Patent GB-301993-A (GB)
Title: Improvements in or relating to pedal gearing and the like
IPC: B62M3/00
Filed: 1927-09-29
Abstract: 301,993. Lea, J. C. Chater-. Sept. 29, 1927. Tension arrangements. - To adjust an eccentric bearing housing B for regulating chain tension on cycles &c., the crank is temporarily connected, as by a pin F, and used as a lever to rotate or hold the necessary part or parts. The pin may engage holes in both the crank and the part to be adjusted, or it may engage a hole in one part and and abut against the other part or against a lug or extension carried thereby, as shown in Fig. 4. The securing means, such as a lock nut, may be similarly actuated. Reference has been directed by the Comptroller to Specification 1025/97, [Class 12, Bearings &c.].
Patent GB-322255-A (GB)
Title: Improvements in exhaust silencers
IPC: F01N1/08
Filed: 1928-09-08
Abstract: 322,255. Robinson, J. Sept. 8, 1928. Exhaust silencers.-The silencer consists of an expansion chamber b of oval cross-section, shaped at one end a to fit the exhaust pipe, and widening towards the other or closed end. The lower wall of the chamber is formed with a hollow or channelled rib d having outlet perforations e in its upper edge. The rib may be inclined, rising towards the closed end.
Patent GB-1311248-A (GB)
Title: Apparatus for recording data in at least two colours
IPC: G06K1/12
Filed: 1971-04-19
Abstract: 1311248 Selective printing NATIONAL CASH REGISTER CO 19 April 1971 [15 April 1970] 25839/71 Heading B6F Apparatus for printing a multi-colour code on labels 21 comprises a printing element 25 having two printing faces (Fig. 1, not shown) each bearing linear raised printing areas (30) arranged such that impressions from the raised areas on one face do not coincide with impressions on the same label from the raised areas on the other face, and a two-colour ink ribbon 37, 38 such that the impressions from the two faces may be in different colours. Printing is effected by hydraulic or pneumatic means 51 against a platen 52. Colour change is effected by gears 43, 42 driving racks 41 on shafts 40 about which ribbon spools 34, 35 rotate.
Patent GB-532972-A (GB)
Title: Improvements in or relating to electric torches and the like
IPC: F21V23/00
Filed: 1939-09-15
Abstract: 532,972. Electric battery lamps. ERICSSON TELEPHONES, Ltd., GRAY, R., and BLUNT, B. Sept. 15, 1939, Nos. 25886 and 30550. [Class 39 (ii)] [Also in Group XXXVII] A switch for an electric torch, adapted to prevent its operation excepting when the torch is pointed downwards, is inserted between the battery 11 and the usual spring 12 and comprises an insulating housing 1 with a tapered hole containing a globule of mercury 5 adapted to make electrical connection between a metal plate 7 and a pin 4 fixed to a metal cap 3. The plate 7 and pin 4 may be of stainless steel and the cap 3 may have an insulating lining to prevent harmful action on the cap by the mercury.