baber/WOPTO huggingface dataset:
Patent GB-230852-A (GB)
Title: Improvements in or relating to motion picture machines
IPC: G03B41/08
Filed: 1925-03-14
Abstract: 230,852. Salorio, W. March 17, 1924, [Convention date]. Kinematograph apparatus.-In continuous-feed apparatus, optical compensation is effected by a continuous rotatable series of spherical lenses e, f, g travelling between a fixed objective b and a fixed focusing lens k, the lenses e, f, g being aplanatic and having a common aplanatic point which is coincident with the axis of rotation and with the front nodal point d of the objective b. The curvature of the inner surface of each of the lenses e, f, g, and the relative positions of the lenses, are such that all rays directed from the film a to the rear nodal point c of the objective b, and emerging from the front nodal point d thereof, are refracted by the lenses e, f, g in all the functioning positions of these lenses, so that if produced backwards they intersect at a common point. Each of the lenses e, f, g has a movable aplanatic point h between it and the objective b. An apertured screen m is provided in the image plane of the system to limit the area of the image projected by a projection lens n.
Patent GB-362266-A (GB)
Title: Improvements in or relating to motion picture apparatus
IPC: G03B1/42
Filed: 1931-03-06
Abstract: 362,266. Kinematograph apparatus. KODAK, Ltd., Kodak House, Kingsway, London. -(Assignees of Stuber, A. ; 343, State Street, and Riddell, W, A. ; 333, State Street, Rochester, New York, U.S.A.) March 6, 1931, No. 7014. Convention date, March 12, 1930. [Class 97 (i).] Film-guiding members are movable into and out of film-threading position under the control of the film. As shown, guide members 21, 36, pivoted respectively at 24, 37, close on to a fixed member 23 during threading, and the member 21, by engagement with a pivoted gate member 30, turns the member 30, against the action of a spring, into open position. The parts are placed in threading position, Fig. 2, by means of a solenoid 57 operating through an arm 65 to turn the member 36, and through a link 40 and pivoted arm 42 to turn the member 21. The solenoid circuit is completed through contacts 54 one of which is carried by a member 52 pivoted at 53 and having a nose 51 projecting into a fixed film-guide 48. The film to be threaded is drawn from a spool 6 and passed into a fixed guide 17 ; it is fed by the sprocket 12 to and from the gate, and in its passage through the guide 48 raises the nose 51 to break the circuit of the solenoid and permit a spring 25 to place the parts in normal running position. When the trailing end of the film passes from under the nose 51, the member 52 turns to complete the circuit of the solenoid and cause it to move the parts to threading position.
Patent GB-213753-A (GB)
Title: Improvements in bale ties or packing bands and fasteners therefor
IPC: B65D63/06
Filed: 1923-03-14
Abstract: 213,753. Lawler, A., and Herald, B. March 14, 1923. Bale ties; bale - tie fasteners. - A bale tie or packing band comprises one length A adapted to encircle the bale and a short length B adapted to be detachably connected by slipper rivets to the ends thereof, and to be severed, for example, at C when the bale is to be opened.
Patent GB-1164231-A (GB)
Title: Improvements in Sun Roof Assemblies for Vehicles.
IPC: B60J7/057
Filed: 1967-02-15
Abstract: 1,164,231. Vehicle sun roof assemblies. REGIE NATIONALE DES USINES RENAULT. 15 Feb., 1967 [18 Feb., 1966], No. 7349/67. Heading B7B. A vehicle sun roof assembly comprises an operating mechanism for displacing a rigid panel 1 slidably in rain gutters 24 extending longitudinally of the roof opening, comprises an electric motor 8 (with its axis vertical) and a reduction gearing 9 in the panel 1 which drive a horizontal shaft 14 carrying at each splined end 19 a shaft 20 rigid with a pinion 21 (only one shown), the pinions 21 constantly engaging toothed racks 22 secured along the walls 23 of the rain gutters 24. The motor 8 has a flattened winding. A toothed wheel 15 on the motor output shaft engages a toothed wheel 16 of the gearing 9, the wheel 16 being rigid with a worm 17 meshing with a gear 18 on the shaft 14. The panel 1 carries guide members 25 which engage a guideway 26 of the gutter 24. Each shaft 20 is coupled to the shaft 14 by a resilient socket 27 adjustably clamped thereto by a split sleeve 28 and half collars 30, the sleeve 28 receiving a pinned ball 31 on the shaft 20. The shaft 14 is supported in bearings incorporated into spacers 13<SP>1</SP> and 13<SP>2</SP> which support the plate 12 from a plate 11 secured to a panel cross-member 2.
Patent GB-876931-A (GB)
Title: Two-stage system for preheating combustion air
IPC: F28C3/14
Filed: 1959-03-03
Abstract: 876,931. Air heating apparatus. NICHOLS, H. H., and KEELER, J. D. March 3, 1959 [July 9, 1958], No. 7393/59. Class 64(1) Air is heated in two stages, firstly by passage through metal recuperator tubes heated by combustion gases and secondly by direct contact with a stream of hot refractory pebbles previously heated in a separate combustion chamber, means being provided for regulating the temperature of the delivered air at each of the two stages. In the form shown, there are two recuperators 1, 2 for supplying preheated air to the second heating stage. Each recuperator comprises readily replaceable units of field tubes 22 through which passes the cold air delivered by a blower (not shown) the air thus heated passing to a bustle pipe 37 leading to the second heating stage comprising a regenerator 31 in which an upwardly flowing stream of the preheated air receives further heat from a stream of refractory pebbles previously heated in one or other of two chambers 51 by burners 55. The cooled pebbles are recycled from the bottom of the regenerator chamber through a valve controlled duct 41, elevating conveyer 69 and hopper 64 back to the heating chamber 51. The air now heated to a high temperature, passes from the regenerator to a duct 45 leading to a blast furnace. The temperature of the air leaving the recuperators 1, 2 is controlled by heat sensitive elements located in the hot air discharge manifolds 33, 34. The heat sensitive elements act to regulate the fuel and air supply to the recuperator combustion chambers 6 to which additionally is supplied the combustion products from the pebble heaters 51. In these heaters 51 the fuel-air supply to burners 55 is regulated by heat sensitive means in the pellet supply duct to maintain a suitable temperature for heating the pellets. A heat sensitive element in the heated air outlet duct 45 controls the rate of supply of the pellets from the hopper 64 to the heating chambers 51 and hence regulates the temperature of air leaving the second heating stage. The pellet level at the bottom of the regenerator 31 is maintained by a regulation, in accordance with the said level, of the rate of flow of pellets through the duct 41 to the conveyer bin 70.
Patent GB-434030-A (GB)
Title: Improvements in current transformers
IPC: H01F27/42
Filed: 1934-03-09
Abstract: 434,030. Current transformers. STEIN, G., 34, Tabbertstrasse, Obersch÷neweide, Berlin. March 9, 1934. Nos. 7490/34 and820/35. [Class 38 (ii)] Relates to a current transformer having two or more core sections in which to effect correction of phase angle and ratio errors premagnetization is effected by means of cross-connected windings nb, Fig. 4, supplied from the main secondary n. To effect ratio compensation the voltage applied to the premagnetizing windings nb is maintained constant by means of a parallel connected saturated choke nc. This choke winding may be mounted on a core, as shown, which links the primary circuit. To avoid error due to ohmic drop due to the secondary load current passing through the choke winding, the windings nb may be supplied from a winding inductively coupled with the choke winding. To enable phase angle correction to be effected a resistance R1, Fig. 7, and if desired a resistance R2 may be connected in parallel and series respectively with the windings nb. The resistance R2 may be a barretter type resistance. Phase control may also be effected by a choke connected in series with the main load L. The phase and ratio control may be combined in a single transformer to give combined correction. Further correction may be effected by varying the ratio of core cross-sections. An arrangement is described in which the ratio of cross-section is varied with the turns ratio. Fig. 13 shows an arrangement for obtaining finer correction, in which two auxiliary cores Se are provided, windings nd, and ne in series and parallel respectively with the load L linking these cores. One of these windings may be omitted if complete accuracy is not essential. In a further modification the winding nd is omitted and the winding ne is connected in parallel with the main secondary winding n. Specifications 286,431, [Class 38 (ii)], and 399,611 are referred to.
Patent GB-1240795-A (GB)
Title: Transformer bobbins
Inventor: POOLE STANLEY REGINALD
IPC: H01F27/32
Filed: 1969-02-12
Abstract: 1,240,795. Transformers. HINCHLEY ENG. CO. Ltd. 26 Nov., 1969 [12 Feb., 1969], No. 7632/69. Heading H1T. An insulating bobbin for transformer windings is moulded as two separate winding formers 1, 2 for side by side assembly on one limb of a core (14, Fig. 4, not shown), the secondary winding former 1 having a skirt 5 extending axially from its inner cheek 6 to enclose the primary winding space on the former, 2, thus increasing the length of the creepage path. The formers 1, 2 are preferably made of thermosetting plastics such as P.T.F.E. with integral tag mounting strips 3, 7 for winding connections. The primary tag strip 7 may be arranged for shrouding by the skirt 5 when assembled, and both-a secondary winding (13) and the skirt may be covered by a tape layer before the assembly is placed on the core lamination stack (14).
Patent GB-558743-A (GB)
Title: Improvements in or relating to the carbonisation of carbonaceous material in vertical retorts or chambers
IPC: C10B3/02
Filed: 1942-06-04
Abstract: 558,743. Retort furnaces. GAS CHAMBERS & COKE OVENS, Ltd., and RITSON, F. June 4, 1942, No. 7644. [Class 51 (ii)] A setting for vertical retorts employed for the carbonization of carbonaceous material is provided with means for supplying fuel gas and air at will to the top or bottom of the heating- walls and for withdrawing the waste gases at will from the bottom or top respectively of the heating-walls. As shown in Figs. 1 and 5, fuel gas is supplied from a conduit 3 to a vertical gas flue 5 which supplies gas through dampered openings 8, 8' to horizontal flues 9, 9<1>, 18, 18<1>, and 20, 20' which are also supplied with air from ducts 10<1>, vertical flues 6, 6<1> and dampered openings 12, 12<1> The combustion products pass from the horizontal flues which are interconnected by dampered openings 13, 13<1> either downwardly or upwardly to the vertical outlet flue 15, provided with dampered openings 14, 14<1>, 19, 21. Fig. 1 shows the upper and lower pairs of flues 18<1>, 20<1> dampered off, the six upper pairs of flues 9, 9<1> being supplied with heating gases while the four lower pairs of flues 9, 9<1> merely carry the combustion products over the lower ends of the retorts to the flue 15. Fuel and air may be supplied to any of the horizontal flues as desired and may be conducted both upwardly and downwardly to the outlet flue 15. According to a modification, the vertical gas and air supply flues 5, 6, 6<1> extend upwardly and downwardly over a part only of the heating-wall. Specification 537,585 is referred to.
Patent GB-399850-A (GB)
Title: Improvements in or relating to the automatic mill mixing, warming, or the like working, of rubber or the like, and apparatus therefor
IPC: B29B7/56
Filed: 1932-03-15
Abstract: 399,850. Mixing-apparatus. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and QUINTON, E. E., Fort Dunlop, Birmingham. March 15, 1932, Nos. 7655 and 23267. [Class 86.] In the mixing &c. of rubber by passing it several times through rolls, the rubber, between successive passes, is fed away from the rolls as a continuous length, and manipulated to alter the position of some of it relatively to the rest. The rubber may then be fed back to the same mill, preferably returning to a different part of the roll, or it may be fed to another mill. As shown in the Figure, rubber is led from a mill 7 by a conveyer 10 to a mill 8, whence it is returned by a conveyer 9 to the mill 7. Numerous modifications are described, including slitting the sheet on a roll, leading the two portions to conveyers whose paths cross, and returning them to the opposite ends of the same mill; bunching the sheet by passing it down a converging shoot which may be reciprocated to make the sheet follow a zig-zag path ; using a battery of mills in line or in a closed chain ; and combining a large mill with a number of small ones.
Patent GB-441357-A (GB)
Title: Improvements in the process of, and apparatus for, production of smokeless hot air for drying, especially of ceramic wares
IPC: F26B21/00
Filed: 1935-03-12
Abstract: 441,357. Heating air. KOTTERBA, M., 4, Konsulplatz, G÷rlitz, Germany. March 12, 1935, No. 7686. [Class 64 (i)] Hot smokeless air for drying ceramic ware &c. is obtained by passing flue gases from a furnace a alternately up and down through a series of shafts c, d, f, the first c, d of which are narrower than the rest and extend through a chamber r through which a fan k draws air from a bank of metal pipes y extending across the wider shafts f. The shafts c, d are made of fireclay and are covered with iron plates m, n connected in a gasproof manner with a flanged iron plate o through which the air pipes y protrude. Fresh air may be added by an adjustable channel p to the flue gases, the speed of which may be regulated by a fan g.
Patent GB-1055015-A (GB)
Title: Glass composition
Inventor: LEWIS ALBERT
IPC: C03C13/00
Filed: 1965-02-23
Abstract: A glass composition consists essentially of, in weight per cent, SiO2 52-60%; Al2O3 20-28%; Na2O 1-7.5%; MgO 6-12.5%; ZrO2 3-4.5%; Fe2O3 0-1; B2O3 0-4.5%; CaO 0-4%, the sum of B2O3 + Na2O being from 3-7.5% and CaO + MgO from 9-12.5%. A suitable batch is melted at 2500 DEG to 2900 DEG  F. (1370-1595 DEG  C.). The molten glass may be then drawn directly into fibres through a platinum bushing at a temperature of from 2400-2800 DEG  F. (1310-1535 DEG  C.) at speeds of up to 10,000 feet per minute.  The fibres are drawn to a diameter of from 0.0001 to 0.004 inch and have an average tensile strength of from 539 to 748 thousand p.s.i. and an average modulus of elasticity of from 12.6 to 15.8 million p.s.i.
Patent GB-1420294-A (GB)
Title: Device for animating an image
IPC: G02B27/06
Filed: 1974-02-20
Abstract: 1420294 Display apparatus C RIANT and F DE LA CHAUVINIERE 20 Feb 1974 [22 Feb 1973 9 April 1973] 7734/74 Heading G5C In a device for providing an animated picture, the spacing between at least two superposed, parallel sheets such as 91, 93 is varied cyclically to give the impression of movement to opaque and transparent image elements on the sheets. In one form, the sheets are joined in zig-zag accordion fashion, the outer sheets 91, 93 being attached to blades 94, 95 which are resiliently urged together. Motors 100, 101 rotate cams 102, 103 to periodically separate the blades and hence the sheets. The device is contained in an internally illuminated frame 80. Another form comprises an overhead projector in which air is blown intermittently from pipes such as 172, 173 perpendicularly to the folds of the connected sheets to give a rising and falling movement to the sheets.
Patent GB-960522-A (GB)
Title: Tape segment applicator
Inventor: KAPLAN IRVING
IPC: B65C11/02
Filed: 1962-02-28
Abstract: 960,522. Feeding webs; selective printing. DYMO INDUSTRIES Inc. Feb. 28, 1962, No. 7755/62. Headings B6B and B6F. [Also in Division B8] In an adhesive tape applicator (see Division B8) in which an operating handle 48, Fig. 1, pivoted at 49 is moved upwardly to actuate tape feed mechanism 47, Fig. 2, and a vertically reciprocable plunger 51 for applying a severed portion of tape to a surface, the plunger 51 carries a printing head whereby selected indicia is printed upon the tape portions during their application. The tape feed mechanism comprises a ratchet actuating arm 57 pivoted at 58 to the handle 48 and urged by a spring 64 to bring a ratchet tooth 59 into engagement with a ratchet-wheel 63, Figs. 2, 5, interposed between gears 62 meshing with a gear portion 67 secured between drive rolls 46 which co-operate with feed rolls 31 for feeding the tape forwardly into the path of the plunger. The feed rolls 31 are journalled at one end of a resilient leaf yoke 83 secured in a guide channel 28 through which the tape is fed from a spool 22, the rolls 31 thus being urged upwardly into engagement with the rolls 46. A leading edge strip 86 of the yoke 83 engages the underside of the tape adjacent a fixed cutting blade 33 and after a tape cutting action, lifts the tape from the blade to free it for subsequent feeding. The plunger 51 which is connected by a link arm 72 to a forward extension 71 of the handle 48 is freely reciprocable in a vertical channel aligned with a bottom opening 42 and is of substantially channel shape including a vertical web 98 and side walls 99, Figs. 2, 6. The walls 99 are slotted at 101 to define a printing head housing 102, and a channel-shaped member 104 and a cross-member 107 are secured between the side walls 99, the member 107 forming a rigid backing to a plurality of spaced continuous bands 109 or loops of rubber which pass therearound, each band having a succession of different indicia type 111. The upper ends of the bands 109 pass around the toothed hubs 112 of a plurality of selector discs 113 rotatable about a shaft 114. The printing head housing 102 may also be arranged to receive interchangeable printing stamp units 118 bearing type 122, which units are releasably engageable with the head housing. An ink pad 127 pivoted at 129 is urged upwardly into engagement with the type by a spring 128, but is swung downwardly out of the path of the plunger during its downward movement. U.S.A. Specification 2,764,934 is referred to.
Patent GB-414993-A (GB)
Title: Improvements in the driving gears of centrifugal separators
IPC: B04B9/08
Filed: 1934-03-12
Abstract: 414,993. Slipping - clutches. KOEFOED, HAUBERG, MARSTRAND, & HELWEG AKTIESELSKABET TITAN, and SCHELBECK, F. C. G., 86, Tagensvej, Copenhagen. March 12, 1934, No. 7766. [Class 80 (ii).] The shaft 4 of a centrifugal separator is driven by a worm wheel 2 which engages a worm 3 on a sleeve mounted loosely on the shaft. The sleeve carries the movable member 5 of a friction clutch the other member 6 of which is rigidly secured to the shaft. The worm wheel tends by its driving action to lift the worm and open the clutch. The axial movement of the worm is subject to control by a spring 7 resting against a loose collar 8 engaged by an arm of a bell crank lever 10. The outer arm of the bell crank carries a screw 12 by which the compression of the spring 7 can be adjusted, so that the shaft 4 can be brought slowly up to speed when starting, and can be disconnected from the driving gear when stopping.
Patent GB-1142655-A (GB)
Title: Continuous flow particle measuring apparatus
IPC: G01N15/12
Filed: 1966-02-22
Abstract: 1,142,655. Electro-physical measurement. COULTER ELECTRONICS Ltd. Feb.22, 1966 [March 8, 1965], No.7822/66. Heading G1N. In apparatus for counting and sizing particles which are in suspension in an electrolyte by detecting conductivity changes as the electrolyte is drawn through a very small aperture, the sample plus electrolyte flows continuously from a reservoir 20, (to which it is supplied by a pipe 26) through the aperture 22 into a tube 16 to a lower reservoir 78 from which it is free to overflow. One electrode 40 is immersed in the reservoir 20, the other electrode 44 is immersed in fluid drawn up from the reservoir 78 by the application of a vacuum at 68. Changes of conductivity are measured and analysed according to particle size by a sequence of threshold circuits 48, 52, 54, 56. In a modification, Fig. 2 (not shown) the reservoir 20 is in the form of a sump attached to one side of the tube 16 which is of square cross-section in that region.
Patent GB-512941-A (GB)
Title: Improvements relating to the sealing of metal wire or foil into vitreous material
IPC: H01J5/32
Filed: 1938-03-14
Abstract: 512,941. Sealing metal into vitreous material. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., ALDINGTON, J. N., and MEADOWCROFT, A. J. March 14, 1938, No. 7847. [Class 36] [Also in Group XXII] To prevent reduction of the current carrying capacity due to the foliation in a foliated lead-in conductor for sealing into quartz or hard glass, the foliation is formed by subjecting the conductor over a portion of its length to transverse rolling, whereby reduction of thickness of the said portion is obtained without increase in length of the conductor. Rolling may be effected in stages and may take place between a pair of rollers.or between a roller and a fixed plate, the edges of the roller or rollers preferably being rounded to avoid abrupt changes in the cross-sectional form of the conductor. The foliation may be subjected to an erosion or other chemical or electrolytic process whereby its thickness, particularly at the edges, is reduced to a desired maximum thickness. Specification 474,394 is referred to.
Patent GB-233838-A (GB)
Title: Improvements in devices for closing winding slots in dynamo electric machinery
IPC: H02K3/493
Filed: 1924-03-28
Abstract: 233,838. British Thomson-Houston Co., Ltd., and Whitaker, F. P. March 28, 1924. Coils and conductors.-Laminated magnetic slot-closing wedges are built of punchings made from a composite sheet comprising a strip of non-magnetic material and a strip of magnetic material secured edge to edge, each separate lamina comprising a magnetic sheet part b and a non-magnetic sheet part c. The laminae are perforated and strung on one or more insulating-rods e and are clamped thereon between thickened end-plates by ferrules. The magnetic portion b does not quite bridge the slot, the edge-to-edge joint being diagonal as shown.