baber/WOPTO huggingface dataset:
Patent GB-291963-A (GB)
Title: An improved machine for embossing leather and the like
IPC: C14B1/56
Filed: 1927-06-14
Abstract: 291,963. Kaufmann, S. H. June 14, 1927. Embossing - machines.-Relates to embossing machines for applying foil to leather and like materials. The apparatus is carried on a, downwardly-directed arm 9, Figs. 1 and 2, angularly adjustable about a horizontal arm 3 movable on a standard 2. The arm 9 is under the influence of a spring 33 to press the embossing-roller 10 on to the material supported on the table 13, a cam being provided for enabling the arm to be lifted. Mounted on a square projection on the arm 9 is an arm 24 on which are pivotally mounted arms 20<a>, 21a carrying respectively a guide 20 for the foil and a roller 21, the two arms being under the influence of a spring 27 to hold the parts 20, 21 in contact with the roller 10. The foil is fed to the roller 10 from a reel 14 carried on brackets on the arm 9, and the foil backing 22, is led away by the roller 21. The roller 10, which is readily removable, is driven by gearing from an electric motor mounted on the arm 9, and is heated by an electric heating element 41 controlled by a variable resistance 43. A thermometer 45 for indicating the heat of the roller is provided. The work-supporting table is carried by pivots to enable it to be adjusted angularly, and a guide for the work is provided. The table may also be supported resiliently, or may be replaced by a freely-running plain wheel. In a modification, the roller 21, Fig. 6, is carried by a sleeve 54 vertically adjustable in an arm 55 mounted on the arm 9. The roller 21 is resiliently pressed on to the roller 10 bv means of an idler roller 59 under the influence of a spring.
Patent GB-1011738-A (GB)
Title: Improvements in and relating to cavity resonators
IPC: H01P7/06
Filed: 1962-08-22
Abstract: 1,011,738. Cavity resonators. A. ALFORD. Aug. 22, 1962, No. 15847/64. Divided out of 1,011,737. Heading H1W. A resonant cavity is provided with means for maintaining the tuning of the cavity constant with varying temperature. The cavity, Fig. 1, has an inner conductor consisting of two hollow tubes 2, 3, joined by a coupling member 5 having central member 4 and resilient fingers which allow expansion and contraction, but maintain electrical contact, the length of the outer conductor 5A controlling the resonant frequency. An air blower (not shown) blows cooling air through the space between the inner members 4 and the inner conductors 2, 3, an insert 6 being placed inside the tubes 2, 3, to speed the air flow. A temperature compensating device 7 comprises rods 9, 10 having a low coefficient of expansion, which are pivotally mounted at 11 and 12 and to each other at 13. Expansion or contraction of the cavity causes the distance between the rods to change so that a plunger 14 which is connected through a bellows 15 to the outer conductor is correspondingly moved to or away from the centre conductor and thus alters the capacity in such a direction as to maintain the resonant frequency constant. Initial adjustment of the length of the rods is made by the fine pitch nuts 17, 18. A separate plunger 25 may be provided to adjust the resonant frequency of the cavity. In a modification, instead of the rods 9, 10 being pivoted to each other, an additional linkage is interposed.
Patent GB-730199-A (GB)
Title: Radio-activity detection
IPC: G01T3/00
Filed: 1952-06-25
Abstract: 730,199. Batteries. OHMART, P. E. June 25, 1952 [June 27, 1951], No. 15945/52. Class 53. [Also in Groups XL (a) and XL (b)] A device for measuring radio-activity utilizes the discovery that electro-chemically dissimilar metals separated by a gas ionized by radioactivity produce an E.M.F. in an external load. The present invention utilizes this discovery to enable the E.M.F. source to be omitted from an ionization chamber detector arrangement. As shown (Fig. 2), the chamber consists of a number of cells in series each comprising a pair of plates such as 7, 12. Plate 7 which may be of lead on brass forms the cap of the chamber. Plate 12, which is of lead di-oxide plated on gold, forms the other plate of the cell. Plate 12 is back-toback with the next lead on brass plate 13 so that all the cells are series-connected, connection being finally made to the lead dioxide on gold plate 20 through an insulated rod 21. The space between the plate is filled with an ionizable gas such as argon, hydrogen, nitrogen or air. In the arrangement of Fig. 3 (not shown), the cylindrical case forms one electrode while a concentric cylinder inside the case forms the other. A cylindrical condenser situated inside the inner electrode and connected to the cell is charged by the cell and the top of the chamber is formed by a flexible diaphragm in which is mounted an insulated pin. The charge accumulated by the condenser may be applied to a ballistic galvanometer by depressing the diaphragm until the pin makes contact with the control electrode. The case may be filled with air or argon at a pressure of three atmospheres. An arrangement comprising a number of cells in parallel is shown in Fig. 4. A number of plates 38-48 are mounted on a central rod 49 with which they are in contact and are interleaved with plates 39 to 47 which are supported by and in contact with the cylindrical housing 35. Odd-numbered electrodes are of brass plated with lead, while even-numbered electrodes are of brass plated with gold. If alpha or beta radiations are to be detected the cup may include a thin window of nylon or rubber hypochloride coated with a very thin coat of the selected electrode material, while the inner electrode may be thin " Formvar " (Registered Trade Mark) coated with the desired electrode material, thin metallic foil, alpha-transparent carbon or magnesium oxide. If the device is required for neutron measurement the outer case may be filled with a hydrogenous material such as polystyrene coated with the electrode material or the case may be of metal internally coated with polystene with a final inside coating of carbon. A filling gas which is itself a source of secondary particles such as hydrogen, boron trifluoride or methane may be used.
Patent GB-708075-A (GB)
Title: Improvements relating to automatic speed control systems for electric motors
Inventor: WYNNE WALTER LEWIS LIFTON
IPC: B65H23/198
Filed: 1951-06-06
Abstract: 708,075. Automatic speed control systems. ENGLISH ELECTRIC CO., Ltd. June 29, 1952 [July 6, 1951], No. 16090/51. Class 38(4) The invention relates to systems for automatically controlling the relative speed of two motors in accordance with the resultant output of two D.C. tachometer generators connected in series opposition and driven by the respective motors. To avoid the sudden change in the polarity of of the voltage drop across the brushes of the tachometer generators which takes place when the current in the output circuit changes direction, a biasing current is caused to flow through the tacho-generators to prevent a reversal of the net current over the range of speed variation. This invention is described with reference to a pull-through slitter for a strip rolling mill, wherein the edges of the strip 10 cut off by the slitter 11 are fed to a scrap-cutter 15, driven by a manually controlled Ward- Leonard set 16, 17 and the speed of the strip is controlled by varying the field of a Ward-Leonard generator 14 supplying the reel motor 13 to maintain the speed of the strip relative to scrap cutter 15. According to the invention tacho-generators 18, 19 driven by the cutter 15 and the slitter 11 respectively are connected in a bridge circuit with resistors 21, 22, and a D.C. biasing current obtained from the generator 17 is applied across one diagonal of the bridge, and the output signal is taken from the other diagonal to a control amplifier 20.
Patent GB-1060101-A (GB)
Title: Dye receptive shaped articles
IPC: C08L23/02
Filed: 1964-04-17
Abstract: A dye receptive article comprises a shaped mixture of a major proportion of a high molecular weight hydrocarbon polymer and a minor proportion of a polymer having amide groups, the article having been treated with a Lewis acid capable of diffusing into the shaped mixture and reacting at least partially with the amide polymer.  The hydrocarbon polymer may be polypropylene, polyethylene, poly-1-butene, or poly-(4-methyl-1-pentene) and the amide polymer poly(vinylpyrrolindone), polyacrylamide, an interpolymer of hexamethylene adipamide, hexamethylene sebacamide and caprolactam or poly(alkyl phenyl-N-vinylpyrrolidone) present preferably in from 3 to 10% of the mixture.  The Lewis acid may be a mineral acid, an organo-carboxylic acid, phenol, acid gases, a volatile halide of a non-metallic acid, an acid halide of an organo-carboxylic acid, an alkyl halide containing a conjugated group, chlorine hypochlorous acid, an ester of an inorganic polybasic acid, or a metal salt.  The article may be in the form of a fibre or fabric and may be subjected to the further step of dyeing.ALSO:A dye receptive article comprising a fibre or fabric of a major proportion of a high molecular weight hydrocarbon polymer and a minor proportion of a polymer having amide groups the article having been treated with a Lewis acid capable of diffusing into the shaped mixture and reacting at least partially with the amide polymer is dyed with an acid, direct, premetallised or vat dye. Examples are given of the treatment of (1) polypropylene multifilament containing 5% polyamide and knitted into a tubular fabric which is then immersed in phosphorus trichloride with an acid dye (2) a similar polypropylene fabric immersed in formic acid, or in acetic acid or in phenol with the same acid dye (3) and (4) similar polypropylene fabric immersed in similar Lewis acids and dyed with a neutralised metallised dye or with an acid dye and (5) a polypropylene monofilament containing 10% polyamide immersed in phosphorus trichloride and dyed with an acid dye.
Patent GB-812239-A (GB)
Title: Improvements in or relating to devices for balancing vertically movable structural elements
IPC: E05D13/00
Filed: 1957-05-21
Abstract: 812,239. Spring balanced windows. VRIES, A. P. DE. May 21, 1957 [May 30, 1956], No. 16131/57. Class 20(3) [Also in Group XXX] A device for balancing a vertically movable structural element comprises a helical spring 3 having a nozzle 7 secured to one end thereof, and a twisted strip 8 extending through said nozzle, the end of the helical spring 3 remote from the nozzle being provided with an abutment 11 mounted so as to be immovable relative thereto and for so accommodating the end of the twisted strip located within the helical spring that said end is axially displaceable but not rotatable. The helical spring 3, located within a protective tube 1, is secured, at its upper end, to a nipple 2 fixed within the corresponding end of the tube 1, the lower end carrying the nozzle 7 which has a slot to slidingly receive the twisted strip 8. The latter has hinged thereto a transverse strip 9 for connection, e.g. by nails, or screws, 10 to a window sash 6. The upper end of the tube 1 is secured, e.g. by nails 4, to a jamb 5 of a fixed window frame. To enable the spring to be wound up stepby-step so that the vertical component of the force exerted by the nozzle 7 on the twisted strip 8 can be adjusted to balance the weight of the sash, and to enable the spring to be unwound a little, from time to time, during the balancing process, the nipple 2 is provided with an extension 12 into the flat abutment walls 11 of which the corresponding end of the strip 8 may be inserted whenever it is desired to prevent it from rotating, and the spring from relaxing. After the helical spring has been given the required bias, the strip 9 is secured by the nails 10, to the sash 6. Specification 384,534 is referred to.
Patent GB-181381-A (GB)
Title: Automatic clutch
IPC: F16D43/24
Filed: 1922-06-10
Abstract: 181,381. Obermoser, K. June 10, 1922. Clutches, friction and free-wheel. - In centrifugal friction clutches, applicable to machine tools &c., clutching-elements are adapted to be freed from a retaining-member engagement by sudden retardation of the driving-member. Rollers d connected by springs c are prevented from moving under centrifugal force by noses o on a driving-member a. When the drive is in the counter-clockwise direction, a sudden retardation of the member a, such as may occur when the arm of an electromotor controller moves between a pair of contacts, causes the rollers to advance by their momentum and pass through gaps f to the position shown in dotted lines, where they jam against a driven drum b. In a modification, the member a floats between the driving and driven members, and moves to free the rollers when the driving- member is retarded. A resilient coupling may be provided between the clutch and the driven machine. When the driving-member stops, the resultant force of the springs c cause the rollers d to return to the centre. In the Specification, as open to inspection under Sect. 91 (3) (a), the clutch is stated to be engagable by acceleration of the driving-member and disengageable by a sudden movement of the driven parts, as by applying a brake thereto; the centrifugal operation of the rollers may be replaced by a spring or weight actuation. This subject-matter does not appear in the Specification as accepted.
Patent GB-422118-A (GB)
Title: Improvements in or relating to boot or shoe heel end stiffener moulding
IPC: A43D8/04
Filed: 1933-06-06
Abstract: 422,118. Boot - making machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., and RICKS, F., Belgrave Road, Leicester. June 6, 1933, No. 16144. [Class 17 (i)] Stiffeners, machines for.-A counter moulding machine, especially for stiffeners of the kind described in Specification 272,171, [Class 17 (ii)], which have a portion or portions extending well into the waist of the shoe at one or both sides, has a member movable lengthwise of the counter to form the flange at the heel end and a pair of members movable into engagement with opposite sides of the counter to form the flange at the ends of the counter. As applied to the machine described in Specification 268,032, [Class 17 (i)], the descending flange former 1 has cam surfaces 3 co-operating with rolls 7 at the ends of levers 10 urged toward each other at their upper ends, by a spring 13 and carrying at their lower ends wiping blocks 17 on ball and socket joints 21, springs 23 normally maintaining the wipers in position. The levers 10 are pivoted at 11 on brackets 25 arranged to rotate about posts 27 slidable in bearings 28. A bracket 30 is pinned to each shaft and, normally, secured to the bracket 25 by a pin 32 so that the pivots 11 of the levers 10 may be moved vertically and also about the axes of the shafts by movements of the brackets 30. Each of the brackets carries a bell-crank lever 37 having a rearwardly extending arm 39 engaging a face 41 on the machine frame and a cam surface 45 co-operating with a roll 47 carried by the flange former 1. Each bracket 30 carries a roll 51 co-operating with a cam 53 adjustable about the end of a slide urged forwardly by an adjustable spring 59 to a limit determined by a stop 63, the guides for the slide being fixed to the machine frame. Faces 69 on the flange former 1 contact with the brackets 30 as the former descends and move the rods 27 downwards against springs 35. In operation, a counter having been positioned between the moulds, the flange former descends and first swings the blocks 17 inwardly. The rolls 47 engage the cam faces 45 and depress the pivots of the levers 37 so that the blocks 17 descend as well as swinging inwardly. The rolls 51 are brought into contact with their cams and, as the former 1 continues to descend it bends over the upper part of the Range and the cams 53 press the blocks 17 against the flange, the springs 59 yielding somewhat. The faces 69 then depress the rods 27 and the blocks 17, the cams 53 allowing the wipers to yield as the blocks reach the portion of the flange corresponding to the waist of the shoe, where the moulds incline forwardly. On the return movement of the flange former, faces 77 lift the rods 27 and all parts are returned by their springs to starting position.
Patent GB-365951-A (GB)
Title: Improvements in or relating to water tube steam generators
IPC: F22B37/22
Filed: 1931-06-04
Abstract: 365,951. Water-tube steam boilers. SULZER FR’RES SOC. ANON., Winterthur, Switzerland. June 4, 1931, No. 16192. Convention date, Aug. 19, 1930. [Class 123 (ii).] In boilers comprising a lower drum 1 connected to each of two or more upper drums 2, 3, by upflow and downflow tubes some at least of the upflow tubes 4, 8, open into the steam spaces of the upper drums. Downflow tubes 6 from the upper drum 2 nearest the furnace are protected by walls 7 and by upflow tubes 20 between which and the main front bank of upflow tubes a superheater 19 is disposed.
Patent GB-617625-A (GB)
Title: Improvements in or relating to electric circuit breakers
IPC: H01H73/38
Filed: 1946-05-28
Abstract: 617,625. Automatic circuit-breakers. PIPPONZI, A. May 28, 1946, No. 16260. Convention date, May 24, 1945. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 22, 1946.] [Class 38 (v)] In a multipole circuit-breaker the fixed contacts 1 are bridged by contacts 2 mounted on insulating blocks 3<1> loosely attached to a common carrier bar 3 guided on rods 11, 12, by a part 15 passing through the block 3<1> which is secured by a cotter-pin 16 under the bar 3, Fig. 3. Contact pressure is provided by a single spring 8 compressed between the bar 3 and a plunger 7 attached to the toggle mechanism. With an odd number of poles, the contact bridges may be mounted on a circular or polygonal carrier to provide balanced contact pressure from the central spring. The toggle mechanism comprises a lever 5 pivoted at 19 to the handle 20, and a lever 4 pivoted to the member 7 and latched by its extended. arm 41 engaging between the nose 611 of a trip lever 6 pivoted.at 19 and a stop-lug 22 provided on the lever 6 so that the toggle is maintained underset. When the'tail 6<1> of the trip-lever is struck by the armature 23 of an electromagnet 24, the toggle collapses under endwise pressure. of the spring 8 and a nut 10 on the plunger 7 forcibly strikes the bar 3 which rises under the action of the opening springs 13, 13<1>, which maintain the contacts open. The Specification as open to inspection under Sect. 91 states that a bimetal strip heated by conduction from a metal cylinder surrounded by the electromagnet coil may operate the trip arm on prolonged small overloads, Fig. 6 (Cancelled) (not shown), and an iron wire or similar high temperature-coefficient resistance may shunt the magnet coil to provide a time delay, Fig. 5 (Cancelled) (not shown). Also, arcing contacts and magnetic blow-out plates may be provided. This matter does not appear in the Specification as accepted.
Patent GB-464240-A (GB)
Title: Process for the production of workable paints having a low content of oil
IPC: C09D7/80
Filed: 1936-06-10
Abstract: A process for the production of workable paints having a low content of oil, from pigments having a high oil value, comprises mixing such pigments with less oil than corresponds to their oil value, to form a dry friable non-coherent mixture, subjecting said non-coherent mixture to a powerful stirring or kneading action adapted to compress the mass and reduce its volume until it is converted into a coherent plastic state, and thereupon bringing the resultant mixture into a workable condition by the addition of further oil and, if desired, other vehicle.  The compressive stirring or kneading may be carried out in a powerful mixing and kneading machine, and the plastic mass so obtained may then be ground in a mortar or rolling mill, with the addition of oil, before conversion into the final workable paint.
Patent GB-818921-A (GB)
Title: Improvements in or relating to liquid fuel supply apparatus
IPC: F02M37/20
Filed: 1956-05-25
Abstract: 818,921. Magnetic couplings. TOKHEIM CORPORATION. May 25,1956 [June 9, 1955], No. 16263/56. Class 35. [Also in Groups XXV and XXVI] A magnetic coupling between a motor shaft 70 and a pump shaft 500 comprises permanent magnets 140, 144, each preferably having four poles, on either side of a diaphragm 80, of stainless steel, brass or synthetic resin, which isolates the motor from the pumped liquid. The magnet 140 is carried by a rotor 74, formed with fan blades 75 for cooling the motor and connected to the shaft 70 with axial freedom of movement by a cross-pin 76. The magnetic thrust is taken by thrust bearings comprising balls bearing on thrust plates 148 carried by the diaphragm 80. Gas separated from the pumpedn at a liquid inlet 510 passes through the hollow shaft 500 and past the lower thrust ball into a housing 560, where it displaces liquid from the housing to provide a gaseous medium in which the driven member of the coupling can operate with reduced frictional drag. Specifications 548,383 and 818,922, [both in Group XXVI], are referred to.
Patent GB-432607-A (GB)
Title: Improvements in or relating to incandescent electric lamps
IPC: H01K1/22
Filed: 1934-05-31
Abstract: 432,607. Making multiple filament electric lamps. ISMAY & SONS, Ltd., J., Roden Street Works, and ISMAY, J., 10, Warwick Gardens, both in Ilford, Essex. May 31, 1934, No. 16298. [Class 39 (ii)] In an electric incandescent lamp of the double filament type having one leading-in wire 7, Fig. 1, connected in common to each of the two filaments 11, 12, a pinch formed at the end of a foot 2 is provided with three lateral protuberances, each of which encloses one of the leading-in wires 7-9, Fig. 4, two of the protuberances extending in directions approximately diametrically opposite to one another and the third in a direction substantially perpendicular to them, an exhausting-tube 5 being attached to a substantially flat side of the pinch opposite to the third protuberance. A central glass stem comprising a rod 3 originally separate from the lamp foot is welded within the end of the stem. In making the stem the three leading-in wires 7-9 and the stem 3 are located in holes in a jig and inserted within an open-ended glass foot 2 in the requisite position relatively to the exhausting tube 5, also mounted within the foot. The operation is performed in a capstan machine, wherein the parts are heated progressively to soften them before the pinch is formed by jaws of corresponding form. A jet of flame is subsequently directed on the foot opposite to the end of the exhausting tube 5, and air is blown through the latter to form an aperture 6 through the pinch. One leading-in wire 8 may be enclosed within a glass tube 14, as described in Specification 432,354, to prevent ionization between the leading-in wires, and the bulb may be provided with a cap 4 of the form described in Specification 431,894. Specifications 222,964 and 317,833, [both in Class 39 (ii)], also are referred to.