baber/WOPTO huggingface dataset:
Patent GB-451238-A (GB)
Title: Improvements in thermionic valve amplifiers
IPC: H03F3/02
Filed: 1935-02-01
Abstract: 451,238. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., and SANDEMAN, E. K., 63, Aldwych, London. Feb. 1, 1935, No. 3392. [Class 40 (v)] In order to avoid phase shift due to the coupling condenser of parallel-feed transformer - coupled thermionic amplifiers, the primary winding of the transformer T is directly connected to the anode of stage V<1> and a gas discharge tube N is so arranged that it maintains the two ends of the transformer primary at the same direct-current potential while offering substantially zero impedance to alternating currents. This is accomplished by arranging the voltage drop across the coupling resistance R<1> to equal that across R<2> while the mean current through the tube N is so adjusted that the difference between this value and the current at which the currentvoltage curve of the tube begins to depart from the vertical is at least equal to the peak value of the alternating current in the plate circuit of V<1>. A method of calculating the resistances R<1> and R<2> for given conditions is indicated.
Patent GB-506443-A (GB)
Title: An air-directing louvre
IPC: F24F13/06
Filed: 1938-02-03
Abstract: 506,443. Ventilators. AXIA FANS, Ltd., and WYLIE, T. Feb. 3, 1938, No. 3446. [Class 137] An air-directing louvre positioned on a ventilating shaft comprises a fixed carrier 11, a boss 12 rotatable about its axis, and a curved outlet nozzle 13 extending through the boss and slidable axially into and out of an enclosure to which the air is delivered. The nozzle has stop flanges 17, 18 to limit its movement through the boss 12 which may be made of felt, and rotates in an annulus 16 when the nozzle is rotated.. Sliding shutters 19, 20 control the opening 25 when the nozzle is fully extended. The direction of the air is varied by axial rotation of the nozzle when extended. In a modification, the nozzle is connected to the boss by a hinge at the axis of curvature of the nozzle.
Patent GB-1244729-A (GB)
Title: Driving and supporting false twist spindles
Inventor: PARKER WALTER
IPC: D02G1/06
Filed: 1968-01-23
Abstract: 1,244,729. False twist crimping spindles. ERNEST SCRAGG & SONS Ltd. 8 Jan., 1969 [23 Jan., 1968], No. 3502/68. Heading DID. A driving and supporting arrangement for one or two false twist spindles comprises a support 13 attached to a false twist crimping machine frame along with other such arrangements, the support carrying a motor 15, driving and supporting rollers 16, 17, 18, 19 for the spindle and a belt 23 engaging a pulley of the motor and a wharf of the spindle driving roller(s). There is preferably a speed ratio between the false twist spindle(s) and the motor of 100:1. Each spindle can be magnetically retained in contact with its driving roller 16, 18 while rollers 17, 19 rotate freely. Alternatively rollers 17, 19 can be driven. The spindles may rotate in the same or opposite directions. The motor is adjustably mounted on the support by means of screws 15' engaging in slots for adjustable tensioning of the belt. The motor or (preferably a variable speed reluctance motor), the driving and support rollers and the spindles project from one side of the support 13 while the motor pulley and the roller wharfs project from the other side and are enclosed in a casing lined with sound-absorbing material. The yarn passes through tubes 31 in the casing, the tubes having ceramic eyes at each end.
Patent GB-645717-A (GB)
Title: Damping means for railway trucks
IPC: B61F5/12
Filed: 1948-02-06
Abstract: 645,717. Railway vehicles. BUCKEYE STEEL CASTINGS CO. Feb. 6, 1948, No. 3504. Convention date, May 8, 1945. [Class 103(vi)] Damping means for a railway truck comprises a side frame 7 provided with bolster guide columns 8 arranged at opposite sides of a bolster opening 9, a bolster 12 extending into the opening 9 and having diverging surfaces 18, friction wedges 14, arranged at opposite sides of the bolster 12 and frictionally engaging said columns 8 and diverging spring means 20 arranged in the bolster to urge the wedges 14 against the columns 8. Specification 645,719 is referred to.
Patent GB-123589-A (GB)
Title: Improved Filter Press.
IPC: B01D25/164
Filed: 1918-02-27
Abstract: 123,589. Turner, J., Parker, R. G., and British Dyes, Ltd. Feb. 27, 1918. Filter-presses; platen presses.-To facilitate pressing the plates of a filter press together after the ordinary filtration is finished to expel the residual liquid, the plates are separated by collapsible or compressible frames. In the arrangement shown in Fig. 3, these frames C are formed of hollow rings of metal with beaded edges F, somewhat like the cover of a bicycle tyre, bearing against appropriately shaped surfaces G<1>, G<2> formed on the plates D. The frames C contain hollow rubber cores 1, the expansion of which opens out the frames when the pressure is released. In the form shown in Fig. 4, the frames are made in two portions, one portion Q being formed with an annular groove S into which the other portion R fits like a piston, cup leathers being provided. The groove X is supplied with liquid under pressure through a pipe T, whereby the frames are pressed liquid-tight against the plates, and opened out when the end pressure is removed.
Patent GB-692225-A (GB)
Title: Glass bending apparatus and method
Inventor: JENDRISAK JOSEPH ERAZIUS
IPC: C03B23/027
Filed: 1951-02-14
Abstract: 692,225. Bending glass sheets. LIBBEYOWENS-FORD GLASS CO. Feb. 14, 1951, No. 3547/51. Class 56. An apparatus for bending glass sheets comprises at least two movable members 18, 19 that are hinged together at 21 and are slidably mounted on bars 6 forming part of a frame 2, 3, 4 which traverses a furnace. The members have curved shaping surfaces and normally close about the pivot to form a concave bed. The sheet of glass 10 to be bent is placed as a strut or chord across the concavity and abuts against stops 35 carried by the members so that whilst the sheet is rigid the members are opened about the pivot 21. As the sheet loses its rigidity under heat it sags and the members 18, 19 close without there being any relative movement between the sheet and its lines of support.
Patent GB-428808-A (GB)
Title: Improvements in and relating to wall boxes for electric fittings
IPC: H02G3/12
Filed: 1934-02-03
Abstract: 428,808. Switch and like cases. WILKINSON, A., and JONES, G. E., 6, St. Oswald Street, Collyhurst, Manchester. Feb. 3, 1934, No. 3575. [Class 38 (v)] A wooden wall box for electric fittings such as switches and/or plugs, is constructed with a tongue 8 extending round the bottom 7 and fitting into a groove in the sides of the box so that when the box is inserted in a cavity in a wall so as to be flush with the wall and plaster is packed round it, the moisture from the plaster cannot drain into the box. The sides of the box dovetail into each other.
Patent GB-693857-A (GB)
Title: Improvements in or relating to knitting wool tension regulators
IPC: D04B15/38
Filed: 1951-02-14
Abstract: 693,857. Yarn tension regulators for hand knitting. GOODMAN, N. Feb. 14, 1951 [March 25, 1950], No. 3592/51. Class 74 (ii). A yarn tension regulator for hand knitting comprises two discs 4, 5 between which the yarn is guided by guides 3 all of which are mounted on a finger ring 1. The lower disc 4 is fixed and the upper disc 5 is movable vertically on a peg 6 being normally urged towards the lower disc by a spring 7 the effect of the spring being varied by an adjustable knob 8 screw threaded on the end of the peg 6. A finger piece 2 prevents rotation of the regulator by contacting the finger adjacent to that on which the regulator is mounted. To enable the pressure between the discs to be readily retained, an arrow is provided on the knob and can be set to indicate a graduation mark on the upper disc.
Patent GB-175269-A (GB)
Title: A machine for shaping milling cutters and the like
Filed: 1922-02-07
Abstract: 175,269. Orsini, P. Feb. 7, 1921, [Convention date]. Shaping curved surfaces. - Milling- cutters &c. are backed off by a tool carried in a lever which is oscillated about an axis eccentric to the work axis, the work being automatically indexed between successive oscillations of the toolcarriers. The tool 12 is clamped in a clapper pivoted to a compound slide adjustable by screws 9, 10 and mounted on a lever 1 pivoted on trunnions 4. The cutter 13 to be backed off is secured to a notched dividing-wheel 16 and supported between centres 15 on a bracket 7 which is adjustable on ways 6 to vary the distance of the trunnion axis from the work axis according to the nature of the work. The tool is further adjustable about an axis perpendicular to the trunnion axis by means of a tangent screw 10". In operation, the lever 1 is oscillated by a crank 2 driven through spur gearing from a shaft 34, and the tool is fed from a hand-wheel 38. Indexing is effected at each stroke of the tool by means of an eccentric 30 chain driven from the shaft 20 and operating a pawl 29, a spring-pressed locking-pawl 17 being withdrawn to allow rotation of the dividing-wheel by a cam 19 operating through levers 25, 26. The Specification gives also a mathematical analysis to show that the teeth of milling-cutters produced by the above-described machine may be reground along diametrical planes without appreciable error.
Patent GB-1487801-A (GB)
Title: Hydrostatic extrusion press
IPC: B21C23/00
Filed: 1975-01-28
Abstract: 1487801 Extrusion ASEA AB 28 Jan 1975 [29 Jan 1974] 3599/75 Heading B3P A hydrostatic extrusion press has a composite die composed of a preforming portion 8 and a final forming and calibrating portion 10 fixed in a prestressed manner in a support 7, the line of separation between the die portions being at the same level as a seal between the press pressure chamber 2 and the die or die support. The seal consists of an inner sealing ring 4a and an outer sealing ring 4b. The preforming die portion 8 is centred on the die holder 7 by a guide ring 16. A seal 19 prevents pressure fluid entering between the die portions. The die portion 10 is prestressed by being forced into a tapered bore 14 of the die holder.
Patent GB-432651-A (GB)
Title: Improvements in bonnets for automobiles
IPC: B62D25/12
Filed: 1934-02-03
Abstract: 432,651. Stays. ELLIOTT, A. G., Darley Dene, Belper Road, Derby. Feb. 3, 1934, No. 3604.. [Class 65 (i)] [See also Group XXXI] In motor-vehicle bonnets of the type comprising hinged top panels and side flaps, brackets b, b<1> secured to the undersides of the top panels a, a<1>, are provided with interengaging stops or hooks e, e<1> to arrest the opening movement of either panel before it comes into contact with the opposite panel, one or each hook being formed on an extension plate f connected to the respective bracket by pins f<1> in slots f<2>. The brackets, which may be of thin sheet metal to permit flexing to avoid engagement of the hooks when it is desired to remove the bonnet bodily, are attached to the panels by bolts b<3> and stays c, the stays being secured to the bent-in ends cl of the panels and by lugs d to the brackets. The brackets may further be provided with extensions g, g<1> bent at right angles to support the side flaps h when raised.
Patent GB-1159808-A (GB)
Title: Railway Train with the Tractive Force of Maximum Purchase.
Inventor: WESTMACOTT GEORGE CLIFFORD
IPC: B61C17/12
Filed: 1966-01-27
Abstract: 1,159,808. Rail vehicles. G. C. WESTMACOTT. 26 April, 1967 [27 Jan, 1966], No. 3647/66. Heading B7L. To smoothen the progress and enhance the grip between rail and wheels of a railway train, particularly while traversing curved sections of track, the payload rolling stock is compressed between front and rear locomotives, and the maximum buffer pressure and draw-bar tension are controlled by dynamometric means acting on brakes and engine regulator, respectively. The varying pressures at the buffers while negotiating curves can be used to pump lubricant on the wheel flanges. The rolling stock preferably comprises vehicles with threepoint suspensions-a bogie at one end, and fixed-bearing wheels at the other. Batterypowered locomotives are mentioned.
Patent GB-368482-A (GB)
Title: Improvements in gas or oil fired air heaters
IPC: F24H3/06
Filed: 1931-02-05
Abstract: 368,482. Air heaters. SADWITH, R., 39, Randolph Place, Newark, New Jersey, U.S.A. Feb. 5, 1931, No. 3702. Convention date, Oct. 17, 1930. [Class 64 (i).] A gas or oil fired air heater comprises a combustion chamber and one or more heat interchanging chambers 2 in which the products of combustion pass downwardly across the direction of flow of the air which is heated in a plurality of horizontal passes 6, both the heated air and the products of combustion being withdrawn from the lower portion of the heater. The refractory walls 4 of the combustion chamber form partitions having openings 5 through which the products of combustion pass to the chambers 2 and downwardly around the pipes 6 to a flue 12 communicating by a pipe 13 with an exhaust fan. Atmospheric air is drawn in at 6<1> to header 8 communicating with the uppermost tier of pipes 6 and passes by end connections 7, 7<1> to the lowest tier whence the heat air is withdrawn through a header 9 and pipe 10. In a modification a single heat interchanging chamber is used. The heaters may be operated in batteries.
Patent GB-682095-A (GB)
Title: Improvements relating to gas taps and cocks
IPC: F16K35/04
Filed: 1950-02-14
Abstract: 682,095. Locking valves. CANNON IRON FOUNDRIES, Ltd., and OATLEY, G. A. Feb. 13, 1951 [Feb. 14, 1950], No. 3708/50. Class 135. A rotary conical plugcock having an inlet 11 and an axial outlet 15a has a pair of diametrically opposite balls 24 co-acting with holes 34 in a fixed plate 32 to give an audible click when the plug is moved into closed position and to offer an initial resistance to movement from the closed to the open position. The balls 24 are confined between two pairs of lugs 21a on a plate 21 slidably keyed to an actuating shaft 16 and are urged upwardly by a washer 20 between which and the plug is a compression spring. The lugs 21a also serve as niting pins, limiting the degree of rotation permitted the plug by co-acting with internal projections on a plate 26.
Patent GB-1367126-A (GB)
Title: Magnetic bubble domain system
IPC: G11C19/08
Filed: 1972-01-26
Abstract: 1367126 Moving domain devices ROCKWELL INTERNATIONAL CORP 26 Jan 1972 [12 March 1971] 3732/72 Heading H3B Magnetic bubble domains are propagated in a strip of material 12, Fig. 1, on a substrate 10, and predetermined stable positions are introduced by removing portions of the strip such as 14, 15. The domains are repelled by the strip edges, and thus where the strip width is reduced a greater force is required to propagate the domains. The domains therefore collect singly or in groups in the regions of full width such as 20. Any geometric restriction of the film may be used, such as a reduction in its height, the notches in the Fig. 1 film need not pass all the way through the height of the film. The strip may be embedded in the substrate or other material may be placed beside the strip as in Figs. 3, 4 (not shown). Specification 1,352,791. The substrate is preferably a garnet of formula J 3 Q 5 O 12 , where J is one or more of Y, Ca, Bi and the rare earths, Q is one or more of In, Ga, Sc, Ti, V, Cr, Mn, Rh, Zr, Hf, Nb, Ta, Al, P, As, Sb. Examples are Sm 3 Ga 5 O 12 , Y 0À45 Gd 2À55 Ga 5 O 12  and Dy 0À65 Gd 2À35 Ga 5 O 12 . The bubble domain material is also preferably a garnet of J 3 Q 5 O 12  formula, where J is one or more of Y and the rare earths, Q is Fe, Fe and Al, Fe and Ga, Fe and In, Fe and Sc, Fe and Ti, Fe and V, Fe and Cr, Fe and Mn. Examples are Y 3 Ga 1À2 Fe 3À8 O 12  and Tb 3 Fe 5 O 12 .
Patent GB-383124-A (GB)
Title: Improvements in pneumatic tyres for rail vehicles
IPC: B60B17/02
Filed: 1932-02-08
Abstract: 383,124. Pneumatic tyres. MICHELIN ET CIE, Clermont-Ferrand, Puy-de-Dome, France. Feb. 8, 1932, No. 3757. Convention date, Dec. 7, 1931. [Classes 144 (i) and 144 (ii).] A pneumatic tyre for use on rail vehicles comprises an air tube 13 of substantially oblong section, and a cover having a substantially flat tread with a reinforcing insertion 7 extending across the full width of the tube. The insertion 7 may be formed of canvas, or cotton threads or wires, arranged circumferentially. The rim 1 may be formed with a detachable outer side flange 10, the inner flange 2 being fitted with an extension 3 to engage the rail.
Patent GB-798971-A (GB)
Title: Improvements in or relating to a speed control device
IPC: H02P23/00
Filed: 1956-02-07
Abstract: 798,971. Automatic speed control. GARRETT CORPORATION. Feb. 7, 1956 [Feb. 14, 1955], No. 3772/56. Class 38 (4). In a speed control system a governor is adjusted in accordance with variations in operating speed in relation to the speed of a resonator controlled synchronous motor. A pneumatically operated turbine 10, Fig. 1, driving an alternator 11 through a gear-box 14 has the flow of input fluid regulated by a pneumatic unit 13 in response to changes in governor 12 brought about by a reversible servomotor 20. In the control system the inputs to a computing differential 26 are pro-. vided by synchronous motors 22, 29, the former being fed from the alternator output and the latter from an amplifier 31 which is also powered by the alternator but delivers to the motor an A.C., the frequency of which is determined by a resonator 32. The differential output is applied to a further differential 37 through a gearing 35 and drives a contact arm 41 through a slipping clutch 3 to energize increase or decrease solenoids 52, 53. The solenoid besides energizing the servomotor in the appropriate direction to effect correction, energizes a free running motor 65 providing a second input to differential 37 whereby the arm 41 is reversed. A relay 48 delays the connection of earth at 47a to arm 41 when the alternator is running up. In modifications, Figs. (2-5), Figs. 2, 3 and 4 of which are not shown, the variable input to differential 26 is provided by a direct mechanical drive from gear-box 14 and in the embodiment described with reference to Fig. 2, the governor is driven, through a slipping clutch, by the output of a single differential corresponding to differential 26. In the embodiments described with reference to Figs. 3 and 4, the D.C. motor drive to differential 37 is replaced by a direct drive from the servomotor and in the former a fluid-operated servomotor is used. Potentiometer arm 77, Fig. 5, is driven through a slipping clutch 71 by differential 26 and the unbalance of bridge 82, 83, 84 is applied to a phase shifting saturable reactor 79 to control the rotation of motor 20. The operating point of a spring-loaded governor, Fig. 6 (not shown), is controlled by adjusting the compression of a helical spring. The resonator 32 may be a tuning fork or crystal.
Patent GB-414702-A (GB)
Title: Improved luggage bag and method of attachment of bag to bicycles, tricycles, motorcycles, and the like
IPC: B62J9/00
Filed: 1933-02-07
Abstract: 414,702. Cycle &c. luggage bags. BEAUMONT, W. C. A., 297, Rangefield Road, Bromley, and GARDENER, W. W., The Hut, Plantation Road, Hextable, near Dartford, both in Kent. Feb. 7, 1933, No. 3788. [Class 133.] A luggage bag for cycles &c. comprises a frame consisting of two or more metal &c. strips a, which extend from top to bottom and beneath the bag and are connected together by transverse members b, to which are fitted devices, such as hooks c,c<1>, c<2>, for attaching the bag to a special carrying-frame on the cycle, the leather, fabric &c. cover of the bag being kept in shape by wires or other stiffeners d attached to the main frame members a. The hooks c, c<1>, c<2> are engaged over horizontal rods on the carrying-frame, the hook c being formed of spring steel and provided with a hole k<1> to receive a projecting stud on the carrying-frame.
Patent GB-563150-A (GB)
Title: Improvements relating to golf bags
IPC: A63B55/00
Filed: 1943-03-10
Abstract: 563,150. Golf bags. MARTINS (BIRMINGHAM), Ltd., and MARTIN. A. W. March 10, 1943, No. 3862. [Class 132 (ii)] A golf bag with umbrella-holding means is provided with a foot socket 3 movable laterally, and with adjustable retaining means 9 for the handle, in order to permit the umbrella to lie on either side of the shoulder strap or sling 1 as desired. The foot socket consists of an open-ended sleeve and may slide along a transverse strap 7 or may rock upon a pivot. The retaining means 9 may embody a ring 10 which may be swung over to one side or the other as required.
Patent GB-218946-A (GB)
Title: Improvements in closed single wheel sidecars
IPC: B62K27/04
Filed: 1924-02-14
Abstract: 218,946. Haddan, R., (Karosseriewerk M³nchen Akt.-Ges.). Feb. 14, 1924. Side-cars.-In a closed-in motor-cycle side-car body provided with windows, the front portion of the outer side wall e form a door d hinged vertically to, and forming an acute angle with, the front wall c which extends across the whole width of the car and over the lower front portion a where the feet and legs of the occupant are accommodated, the door d extending so far back that it exposes the seat cushion and permits the passenger, whilst facing from the car, to take his seat and draw in his legs and feet afterwards.
Patent GB-916443-A (GB)
Title: Improvements relating to warp tying machines for use with weaving looms
IPC: D03J1/16
Filed: 1960-02-03
Abstract: 916,443. Warp tying machines. ZELLWEGER Ltd. Feb. 3, 1960 [April 3, 1959], No. 3910/60. Addition to 852,529. Class 142 (1). A warp tying mechanism 5 is carried by legs 6 pivoted on feet 7 to enable it to be placed behind a loom and swung forward to the required position, where it is clamped by nuts 13 and 12b.
Patent GB-775646-A (GB)
Title: Improvements in or relating to electric fuses
IPC: H01H85/046
Filed: 1954-02-10
Abstract: 775,646. Fusible cut-outs. LITTELFUSE Inc. Feb. 10, 1954 [May 18, 1953], No. 3921/54. Class 38 (1). A low amperage fuse comprises a pointed conductor 18 engaging a fusible element in the form of a thin film conductor 15 applied by vaporization to an insulating platform 14 formed in the nylon fuse body 11 by the intersection of a notch 13 with a bore 12. On overload, fusion of the film occurs about the point of engagement 19. The point of conductor 18 may also be coated with the thin film of fusible metal to improve the contact. Connection to the conductors is made by end caps 20, 21 held in place by metal coatings 16, 17, e.g. tin or copper sprayed on to the body. The film conductor is evaporated and condensed on to platform 14 and, while any metal may be used, the following are referred to for use in very low amperage fuses: bismuth, antimony, lead, tin. Specification 775,647 is referred to.
Patent GB-637176-A (GB)
Title: Method and apparatus for applying a stripe of coating or treating liquid to a film
IPC: G03C1/74
Filed: 1947-02-11
Abstract: 637,176. Coating webs. TECHNICOLOR MOTION PICTURE CORPORATION. Feb. 11, 1947, No. 3961. Convention date, Aug. 15, 1946. [Class 140] A stripe of liquid, e.g. a sound track sensitizing solution, is applied to an absorbent kinematograph film F, Fig. 1, by a nozzle 6 so that a ridge of liquid is deposited on the 'film and at a point further along the travel of the film liquid which has not been absorbed by the film is removed by a device 9 which comprises a slot 21, Fig. 5, through which the liquid is removed by suction. The film may be prewetted in a water bath 1 and surplus water may be removed prior to the nozzle 6 by a device similar to the device 9. The construction of the nozzle 6 is described in Specification 637,175. Specification 604,256, [Group XX], also is referred to.