baber/WOPTO huggingface dataset:
Patent GB-624850-A (GB)
Title: Improvements relating to the magnetic induction acceleration of electrons
IPC: H05H11/00
Filed: 1945-10-04
Abstract: 624,850. Electromagnets. BRITISH THOMSON-HOUSTON CO., Ltd., WILKINSON K. J. R., and MILNER, C. J. Oct. 4, 1945' No. 25847. [Class 35] [Also in Group XL (a)] A magnetic induction accelerator comprises an evacuated. annular container for the accelerated electrons, means for providing a path for the accelerating flux substantially wholly in magnetic material, and other means providing for the guiding flux a path substantially wholly in magnetic material except for the traversing of the orbit space, the fluxes being produced by concentric windings on either side of the orbital space. The envelope 8 lies between an inner core 1 and outer core 2 and is flanked by an intermediate core 5 in two parts. The concentric coils 6, 7 are spirally wound on standard core limbs and are linked by radial laminated members 3, 4. The core members 1, 2, 5 are split circumferentially to prevent short circuiting and are linked at the centre by half rings 16 hold by clamping plate 17 and bolt 18 and at the outside and intermediately by other bolts and plates.
Patent GB-407622-A (GB)
Title: Improvements in or relating to buckles or slides of the lever kind
IPC: A41F3/02
Filed: 1933-09-19
Abstract: 407,622. Buckles. JACKSON, R. T., 40, Lubenham Hill, Market Harborough, and SYMINGTON & CO., Ltd., R. and W. H., Market Harborough, Leicestershire. Sept. 19, 1933, No. 25873. [Class 43.] In a strap etc. fastening, the strap e is gripped between a lever g and a cross-bar c of a frame a, the lever g being pivoted on a lower cross-bar d, and one end of the strap anchored to an upper cross-bar b. Movement of the lever g is limited by lugs g<111 >and by the edges of the lever overlapping the side bars of the frame a. The strap e is passed through the fastening as shown in dot and dash lines in Fig. 3 so as to cover all but the middle cross-bar c.
Patent GB-226765-A (GB)
Title: Improvements in die-heads for taper screwing
IPC: B23G5/12
Filed: 1923-10-06
Abstract: 226,765. Stenman, P. L. Oct. 6, 1923. Screwing die-heads.-In a taper threading die-head particularly designed for making woodscrews, in which the dies are movable in guides arranged substantially radially around the work with the cutting edges in helical relation, the dies are moved during cutting by individual cam surfaces so that each die may operate in a different time interval or along a different path from the others. The dies may be operated by levers 42, Fig. 1, and cam surfaces formed on an axially slidable sleeve 43, or inverted cam surfaces may operate directly on the ends of the dies. In a modification the dies may be operated by rollers and cam grooves 38, Fig. 3, on a rotatable ring 45, adjusted by a roller 39 on the ring and a guide 44. In a further modification, Fig. 5, the dies 48 are adjustable by means of levers 42 and cams such as 43, Fig. 1, in guides 41 which are themselves adjustable about pivots 47 to vary the angle of attack of the cutting-edges. The levers engage the die-holders by means of conical-ended pins 51 and similar recesses in the holders, or the positions of the pins and recesses may be reversed. Any of these die-heads may be either stationary or rotary.
Patent GB-383350-A (GB)
Title: Improvements in and relating to racing tracks
IPC: A63K1/02
Filed: 1931-09-16
Abstract: 383,350. Dog - racing apparatus. WHITBY, H., Sunnyside, Glyn Road, Ponders End, Enfield, Middlesex. Sept. 16, 1931, No. 25939. [Class 132 (i).] In dog-racing and like tracks, the mechanical lure is mounted on a cable or rope driven carriage provided with pairs of rollers engaging the top and bottom sides of two parallel track rails. In the construction described, the carriage consists of two U-shaped members 8, 9, Fig. 2, connected by side bars 10 and a central top bar 11. Two pairs of rollers 13, mounted on shafts 12, run on the upper side of rails 3, 3a. Rollers 14, Fig. 1, mounted on stub shafts 15 under the shafts 12 engage the undersides of the rails. The supports for the rails consist of uprights 4, 5 the latter of which is of T-shape and carries a guide-pulley 21 for the cable. A brake lever 18 is mounted on the carriage member 10 and has a block 19 engaging the rails under the action of a spring 20. The pull of the cable 17 during traverse of the carriage holds the brake free. The track may be of circular, oval, or other shape, and the operating cable may be endless or wound on a drum.
Patent GB-384008-A (GB)
Title: Rotating floodlight
IPC: B64F1/20
Filed: 1931-09-16
Abstract: 384,008. Rotary floodlights. HUTTON, F. J., 114, Capel Road, Forest Gate, London, and SNELL, R. C., 94, Cranley Drive, Ilford, Essex. Sept. 16, 1931, No. 25942. [Class 75 (iv).] A floodlight for colour lighting or other purposes comprises a number of reflectors B containing electric lamps G and arranged in rows on the surface of a bowl or the like A which is adapted to be rotated by an electric motor C mounted within the bowl, means being provided for varying the intensity of the individual lamps and for switching them on and off at will. The reflectors may be fitted with lenses F.
Patent GB-716887-A (GB)
Title: Sound recording and play-back apparatus
IPC: G11B15/50
Filed: 1951-11-06
Abstract: 716,887. Magnetic sound recording or reproducing apparatus. PRODUITS PERFECTONE SOC. ANON. Nov. 6, 1951 [Nov. 8, 1950], No. 25988/51. Class 40 (2). A magnetic tape which may be perforated is drawn from a reel 1 by a toothed sprocket wheel 3, passed over a tensioning roller 4, direction changing rollers 5, 9 and back to a reel 11 over a further tensioning roller 10. Erasing, reproducing and recording heads 6, 7, 8 are provided between the rollers 5, 9. The recording and reproducing heads should be mounted between the points where the tape leaves the rollers 5, 9. In a modification the heads may be positioned at 6a, 7a, 8a. The roller 5 is provided with an eddy current brake 18, 19, and the roller 9 with a flywheel 20. The roller 10 may have a damping piston 16. The tension on the roller 10 is greater than that on the roller 4. Tensioning rollers may be provided before and after the roller 5 and the roller 9. The rollers 4, 10 may be supported on vertically mounted arms.
Patent GB-1279562-A (GB)
Title: Strapping tool
IPC: B65B13/30
Filed: 1970-05-29
Abstract: 1279562 Tensioners BORBE-WANNER AG 29 May 1970 [4 June 1969] 26084/70 Heading F2G [Also in Division B6] Apparatus for tightening and connecting overlapping portions 17, 18 of a flexible closure band trained around a package comprises a rotatable, toothed segment 15 which is displaceable along the overlapping portions 17, 18 so that its teeth 16 can successively press into a sleeve 19 and/or the portions 17, 18 lying upon a serrated or toothed die 14 to form a non-detachable seal. The segment 15 is mounted on a shaft 10 journalled in roller bearings 11, 12 guided in slots 8, (9, Fig. 1). The roller-bearing 11 is sandwiched between discs 24, 25 and the rollerbearing 12 is sandwiched between a disc 26 and a gear 28 meshing with a rack 29 so that upon rotation of a lever 20 the segment simultaneously rotates and travels along the overlapping portions 17, 18. A pivotable plate 35 engaging over an end of the sleeve 19 prevents major sleeve curling as the segment 15 advances, minor curling being eliminated by the segment 15 pressing down on the plate 35 at the end of its travel. After sealing the segment 15 is returned to its initial position, as shown, whereupon the lever 20 is depressed to firstly raise, via a longitudinally displaceable bolt 60, a bandtensioning roller (49, Fig. 1) and secondly to force the segment 15 downwardly against a pivotable sprung-loaded sleeve stop 40 provided with a knife 38 so that the upper portion 18 is severed. The band may be tensioned prior to sealing by the roller (49, Fig. 1) which is urged downwardly upon a sprung-loaded rocker (45, Fig. 1) and rotated via a pawl and ratchet to slide the portion 18 over the portion 17 held in a roughened die (52, Fig. 1). The band may be metallic or non-metallic.
Patent GB-403778-A (GB)
Title: Improvements in or relating to permanent magnets
IPC: H04R9/02
Filed: 1932-09-20
Abstract: 403,778. Loud-speakers. DARWINS, Ltd., Fitzwilliam Works, Templeborough, Sheffield, and MARRISON, W. L., Prospect House, Totley Brook Road, Totley Rise, near Sheffield. Sept. 20, 1932, No. 26094. [Class 40 (iv).] A portion of a permanent magnet with a narrow air gap, such as is employed in loudspeakers &c., consists of magnet steel which is hardened by heat treatment, the part next the gap being further treated to soften it. In the arrangement shown the steel portion of the magnet consists of a cylinder 10 with a reduced end 11. The piece 10 is heated to about 1100‹ C. and air cooled or quenched and the end 11 then dipped into molten salt or lead at 790-840‹ C. The ends 14 of the magnet and second pole-piece 15 may be of soft iron. The junction of the pieces 10, 11 may be tapered. The body 10 may be screened by a ring of asbestos &c., during the second treatment. In a modification the piece 15 may be of magnet steel and the portion surrounding the air gap softened by a flame &c.
Patent GB-475832-A (GB)
Title: Improvements in or relating to gas-masks
IPC: A62B18/08
Filed: 1936-09-26
Abstract: 475,832. Gas-masks ; moulsling plastic substances; valves. ARMS THONG, J. J. V. (Fatra Akciova Spolecnost) Sept. 26, 1936, No. 26128. [Class 81 (ii)] [Also in Groups V and XXIX] Gas-masks 1 made of rubber, are pressmoulded and vulcanized in flat form in a mould comprising outer steel mould parts and a central core, the buckles or loops 8 employed to secure the head-strap being moulded into the edge of the mask. As shown in Fig. 5, a strip of rubberized fabric 10 is folded around one side of the buckle 8 and is then, together with part of the buckle itself, covered with crude rubber and laid in recesses in the mould. The mask is formed with an ovate aperture 2, Fig. 1, receiving a respiratory chamber and with eye-piece apertures 3, 4, in which eyepieces are secured by aluminium, contracting rings. A partition 7, moulded into the mask by shaping of the core, serves to collect condensation and perspiration which drains off through the exhalation valve. The respiratory chamber 12, Fig. 6, comprises a hollow moulded body of ovate form having a groove 21 engaged by the wall of aperture 2 and having side wings 22 on the inner side to hold the mask open in use. On the outer side the chamber has an exhaling aperture 12<1>, the walls of which are extended to form a circular chamber having an apertured cover 20. An inhaling aperture 16 in the upper part of the chamber contains a valve 18 and has outwardly-extending cylindrical walls 13 screw-threaded to receive a breathing hose. A baffle 23 behind valve 18 deflects incoming air to the upper part of the mask for cooling purposes. An exhaling valve 19, mounted on a tubular support 12<11>, comprises a rubber tubular part 24 having an internal flange 25 engaging a recess in the support, the part 24 being formed integral with a ring-like portion 28 having an annular recess 27 and located below the end of the part 24 which serves as a valve seat. The periphery of the ring 28 is in the form of a six-point star and a rubber diaphragm 29 of similar shape is vulcanized to the ring at the points, the engaging parts of the star being thinned and roughened. The head straps of the mask, Fig. 10, comprise elastic temple straps 31, and crown straps 32 crossed and stitched together at 38, and occipital straps comprising doubled non-elastic portions 34 passed the one through the other and connected through buckles 35 with elastic portions 36. The straps are connected together at points 33 whereby adjustment of the buckles 35 produces a balanced tension in all straps.
Patent GB-318487-A (GB)
Title: Improvements in ophthalmoscopes for instructional purposes
IPC: A61B3/13
Filed: 1929-08-29
Abstract: 318,487. Zeiss, C., [Firm of]. Sept. 3, 1928, [Convention date]. Ophthalanoscopes are constructed so that the image of the background of the eye illuminated by an illumination system 4, 6, can be viewed simultaneously by several observers. The opthalmoscope of the Gullstrand type comprises a non-spherical lens 1, an objective 2 and an eyepiece 3, 3<1> by which the eye 21 is viewed. In the path of the rays between the lens 1 and the objective 2 are placed two prisms 9, 10 diverting portions of the rays through objectives 11, 12 to semi-transparent reflectors 13, 14 whereby each pencil of rays is divided so that, in the example shown, four additional observers may examine the eye 21. Diaphragms 8, 19, 20 are imaged in the pupil of the eye 21 and constitute apertures for the corresponding examination systems.
Patent GB-356933-A (GB)
Title: Improved manufacture of rubber
IPC: C08K5/46
Filed: 1930-09-03
Abstract: A dithio-amine, of the general formula:  <FORM:0356933/IV/1> where R and R1 are similar or dissimilar aromatic nuclei, is used to preserve rubber against oxidation.  In an example for the preparation of dithiophenyl-b -naphthylamine, sulphur chloride and phenyl-b -naphthylamine are dissolved in benzene in approximately molecular proportions, and allowed to stand.  The crude compound obtained by evaporation of the excess solvent may be purified by washing with benzene and petroleum ether.  Other compounds which may be obtained in an analogous manner are dithio-di-a - or b - naphthylamines, dithiodiphenylamine, dithiotolylnaphthylamine, dithiophenyl - a  - naphthylamine, dithioxylylnaphthylamine (either a - or b -), dithio-hydroxyphenylnaphthylamine (either a - or b -) and dithio-mononitrophenylnaphthylamine.ALSO:Rubber is preserved against oxidation &c. by vulcanizing it in the presence of a dithio secondary aromatic amine, of the general formula <FORM:0356933/V/1> where R, R1 are similar or dissimilar aromatic nuclei.  In an example for the preparation of dithio phenyl beta naphthylamine, sulphur chloride S2Cl2 and phenyl beta naphthylamine are dissolved in a suitable solvent such as cold benzene in approximately molecular proportions, and allowed to stand.  The resultant crude compound obtained by evaporation of the excess solvents may be purified by washing with benzene and petroleum ether.  Other compounds which may be obtained in an analogous manner, include dithio dibeta or dialpha naphthylamines, dithio diphenylamines, dithio tolyl naphthylamine, dithio phenyl alpha naphthylamine, dithio xylyl naphthylamine (either alpha or beta), dithio hydroxy phenyl naphthylamine (either alpha or beta), dithio mono nitro phenyl naphthylamine.
Patent GB-962706-A (GB)
Title: Improvements in nitrofuran derivatives
IPC: C07D307/75
Filed: 1962-07-09
Abstract: The invention comprises the 5-nitro furfurylidene hydrazide of 4-hydroxybenzoic acid and the manufacture thereof by reacting 5-nitrofurfural with 4-hydroxybenzhydrazide, preferably in the presence of water or aqueous dimethylformamide at a temperature between room temperature and the boiling point of the reaction medium.  Pharmaceutical compositions having bactericidal properties and useful for treating infections of the intestines, rectum and genitalia and infected eczemas, comprise the foregoing compound in association with a pharmaceutically acceptable carrier.  They may take the form of pills, granules, suppositories, ovules or ointments.
Patent GB-211527-A (GB)
Title: Improvements in and relating to percussion tools
IPC: B25D15/02
Filed: 1923-06-25
Abstract: 211,527. Thompson, G. H. June 25, 1923. Percussive hand tools.-A percussive tool for chipping, scaling, or rivetting comprises a rotary cage a<1> carrying one or more loosely mounted rings b caused by centrifugal action to strike a sliding part e transmitting the blows to a chisel or other tool g provided with a return spring f. The cage a' is mounted on ball bearings and driven by a flexible shaft (not shown) and bevel gearing p. The bevel wheels are not keyed, but tighten themselves up in rotating.
Patent GB-1130738-A (GB)
Title: Feeder apparatus for livestock
Inventor: MARSHALL DALE EARNEST
IPC: A01K5/02
Filed: 1967-06-08
Abstract: 1,130,738. Livestock feeding apparatus. CHORE TIME EQUIPMENT Inc. 8 June, 1967, No. 26602/67. Heading A1M. Livestock feeding apparatus comprises a feed delivering auger along which is disposed a plurality of dispensing units, each dispensing unit 36 having an opening covered by a hinged door 84 which is biased towards a closed position by counterbalancing weight 100, the doors being held in the closed position by a latch mechanism 102, the operation of the auger being prevented unless all the doors are in the closed position. The latch member has a hook which engages a finger element 110 on the door 84. Each latch member is connected to a cable 118 which is actuated by a crank driven by an actuator motor. A switch-clock functions to energize the actuator motor and so release the doors 84. After the feed has been dispensed the doors return to their closed position, the crank rotates so de-energizing the actuator motor and energizing the auger motor 46 and at the same time counterweight 126 pulls cable 118 and the latch members to their starting positions. Energization of motor 46 cannot occur until all the latch members 102 have returned completely to door latching positions so that switch 270 is closed. The switch 270 is mounted on side wall 76 of dispensing unit 36a and engages with abutment 298 which is fixed to the latch member 102a so that when the latch member 102a is in the door latching position with the door fully closed the switch 270 will be closed. If any one of the latch members is prevented from returning to the door latching position by its stop member 136 the switch 270 will remain open and the motor 46 will not be energized.
Patent GB-1042969-A (GB)
Title: Glass article having low specular reflecting surface
IPC: C03C15/00
Filed: 1963-11-18
Abstract: A glass article has a low specular reflecting surface formed by etching with an aqueous solution of hydrogen fluoride and ammonium bifluoride and a viscosity controlling agent such as sorbitol, to give a plurality of separate plateous in a parallel plane, the majority of which are from 0.001-0.002 inch in diameter, and which have an occurence of 1 X 105-5 X 105 per square inch of surface.  The bases of the plateous range from 0.0015-0.003 inch and the height from 20 x 106-40 x 106 inch. The following glass compositions are disclosed:  (a) SiO2 71.6% by weight, Na2O 13.1, CaO 11.7, MgO 2.5, Na2SO4 0.7, NaCl 0.1, Fe2O3 0.1, Al2O3 0.2.  (b)  SiO2 73.35, Na2O 13.14, CaO 8.3, Mg 3.43, Na2 SO4 0.43, NaCl 0.04, Fe2O3 0.09, Al2O3 1.22.  (c)  SiO2 69.18, Na2O 15.6, CaO 6.9, MgO 2.75, Na2SO4 0.5, Al2O3 3.25, Fe2O3 0.087, NaCl 0.024, K2O 0.98, BaO 9.55, As2O5 0.09, NiO 0.027, CaO 0.0042.  (d)  SiO2 69.32 Na2O 16.12, CaO 7.26, MgO 2.76, Na2SO4 0.51, NaCl 0.03, Fe2O3 0.09, Al2O3 3.12, As2O5 0.1, CoO 0.004, NiO 0.27, K2O 0.44.
Patent GB-1078503-A (GB)
Title: A fabricated structural member for window and facade construction
IPC: E06B3/263
Filed: 1965-06-24
Abstract: 1,078,503. Windows &c. frames. ALUMINIUM A.G. MENZIKEN. June 24, 1965 [June 30, 1964], No. 26719/65. Heading E1J. A structural frame member for windows and facades comprises an outer hollow-section component of light metal e.g. aluminium and an inner hollow-section component 1 also of e.g. aluminium connected together by webs the webs being of polyester reinforced with glass fibre in such weight ratio of polyester to fibre that its coefficient of heat expansion correspond substantially to that of the metal components. The ratio may be 3:1. The adhesive securing the webs to the components 1, 2 consists of durable plastic polymeric rubber-like material, e.g. an alkaline polysulphide. A Z- shaped frame member may be formed by connecting two L-shaped components by a single web of the polyester reinforced with glass fibre.
Patent GB-1204396-A (GB)
Title: Compact electrical contact block with electrically isolated bridging contacts
IPC: H01H13/50
Filed: 1968-06-05
Abstract: 1,204,396. Mounting switch contacts; mechanical switches. BROOKHIRST IGRANIC Ltd. 5 June, 1968 [5 June, 1967], No. 26789/68. Heading H1N. A switch contact assembly comprises a pair of bridging contact strips 42, 43 on a common insulating spacer 44 which is slidably mounted on an insulating actuator 34, 35 and is yieldingly held between a light spring 54 and an insulating spacer 55 slidable on the plunger 34 and engaged by a heavy return spring 58 in the casing. The arrangement is such that the contact bridge 43 is normally yieldingly held (Fig. 2) in engagement with fixed contact pairs 19, 20 by pressure of the spring 58 on spacer 55 engaging the bridge 42. On operation of the plunger 33, Fig. 4, projections 40, 41 thereon engage and retract the spacer 55 whereby the bridge 42 moves with the plunger 34 and yieldingly engages fixed contacts 17, 18 under the pressure of spring 54. The casing 2 is arranged for stacked assembly by inter-engaging lugs and recesses 7, 9 and may be attached to the rear of a push-button actuator block as described in Specification 1,100,415. The fixed contact terminal strips 17-20 are mounted in recesses in the casing 2 and are held in position by the cover 3 clamping the strips directly or through cylindrical rods 31, 32 inserted in grooves 27, 28 of the casing.
Patent GB-503338-A (GB)
Title: Improvements in or relating to chain mining machines
IPC: E21C35/20
Filed: 1937-10-04
Abstract: 503,338. Mining-machines. HOY & CO.,-Ltd., A., HOY, A. Y., and SMITH. S. SHEPHERDOct. 4, 1937, No. 26858. Addition to 481,959. [Class 68 (in i In a machine as claimed in the parent Specification, to prevent accumulation of cuttings, the rotary disc beneath the cutterchain driving sprocket is provided on its underside with projections; further, a segmental, arcuate or like guide-is provided close to, or extending over, the edge of the disc at least at the place where the cutter chain first passes over the disc. As shown, projections 4 of copper or brass are provided on the underside of the disc 1, being welded thereto, or forming the heads of rivets, and preferably being arranged iu radial, spiral, ring or staggered relation ; radial or other ribs 9 may also be provided. Projections may also be provided on the skid plate 3, and the projections on the disc pass between them. A guard 6, preferably of highly-tempered steel, is provided where the cutter chain 5, according to the direction of cutting, first passes over the disc 1 ; the guard may be integral with the skid plate, or secured thereto by welding, riveting, &c., or it may bo carried by the jib hanger. Each guard has an arcuate side 7 fitting closely against the edge of the disc 1, and increases in thickness towards the disc so that its side 7 projects above the disc. Further guards 10 are provided at the rear end of the skid plate 3. The disc 1 may be stepped or chamfered at its edge, and the guards 6 correspondingly shaped to overlie the disc ; also the underside of the disc may be bevelled or curved upwardly towards its edge.