baber/WOPTO huggingface dataset:
Patent GB-195903-A (GB)
Title: Improvements in or relating to filament resistance rheostats
IPC: H01C10/18
Filed: 1922-07-13
Abstract: 195,903. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). July 13, 1922. Variable resistances.-A rheostat for panel mounting comprises a resistance element in the form of a spiral spring stretched around the circumference of a drum which is provided with a radially offset insulating element positioned between the ends of the spiral, and a blade spring contact bearing tangentially upon the outer surface of the resistance element, the drum and contact being adapted for relative rotation by a manually operated spindle. In one construction, shown in Figs. 1 and 2, a U-shaped frama 9 is secured to a panel 10 and a hub 14 is positioned between the legs 11, 12 of the frame. A tubular shaft 15 passes through the panel and is secured to the hub member by a set screw 16 which provides for axial and angular adjustment of the hub with respect to the shaft. Metal end caps 19 provided with circular flanges 20 are mounted on the hub member and hold between them a grooved insulating drum 21 upon which the spiral spring resistance element is stretched. The drum is mortised to receive a radially offset insulating element 23 provided with projections 24 to which the ends of the resistance element are attached. The blade spring contact 31 is adjustably mounted upon an insulating sleeve 29 and bears tangentially upon the resistance element, or is raised from contact therewith by the insulating projection 23 when the drum completes its rotary movement, lugs 25, 26 limiting the travel. A vernier resistance 38 is mounted on an insulating element 37 carried by another hub member 39 which is adjustably mounted on @ spindle 41 passing through the tubular shaft 15 and terminating in the vernier operating knob 43 above the knob 17 operating the main resistance. The blade spring contact for the vernier resistance is adjustably mounted on an insulating sleeve 30. One end of each resistance element is electrically connected with the respective hub, a spring clip 45, Fig. 1<a>, being sprung between the hub members. These clips also serve to bias the vernier knob and shaft backward, and the main shaft forward, with respect to the panel. In another construction, shown in Fig. 4, a set-screw 16a passes through an insulating spacer 47, drum 21a, and hub member 14a, and the frame is constructed of separable sections 11<a>, 12<a>. The blade spring contact is insulated from and secured to the frame by a terminal screw 48. The spacer 47 may serve as the offset radial projection previously referred to, and a spring washer 46, Fig. 3<a>, provides for biassing the shaft.
Patent GB-899978-A (GB)
Title: Thread tension device for sewing machines
IPC: D05B47/00
Filed: 1960-05-31
Abstract: 899,978. Sewing machines. FAIRWEATHER, H. G. C. (Singer Manufacturing Co.). May 31, 1960, No. 19300/60. Class 112 In a sewing machine thread tension device the knob which is turnable to vary the spring force on the tension discs is releasably mounted on its rod to allow the tension discs to be removed. The thread tensioning device comprises a rod 4 mounted in a boss 2 in a sewing machine head 1 and rotatable in the boss by a knob 10 the nut 23 then moving along a threaded portion of the rod to vary the compression of a spring 31 urging a sleeve 29 outwardly to press together the tension discs 32. Rotation of the nut 23 is prevented by ears thereon which enter slots 25 in a barrel 26. The barrel is slidable within a bore 3 in the head 1 and is engaged at 36 by one end of a first order lever 33 connected to the presser-bar lifting-lever 45 so as to be rockable about its pivot 34. When the foot is raised the barrel 26 is moved to the position shown, together with the sleeve 29, to release the discs 32 from the spring pressure and release the thread tension. In another embodiment (Figs. 5 and 6, not shown) the spring 8 is replaced by a bifurcated leaf spring engaging a groove in the shaft 4. In both embodiments the knob 10, discs 32 and rod 4 may be moved and replaced without disturbing the other parts of the device contained within the bore 3. The check spring is separated from the tension device. The check spring arbor 55 is secured in an angularly adjustable position in a boss 54. The check spring is coiled around an enlarged portion 57 of the arbor and has one end anchored in a selected one of a number of grooves 58 provided in the portion 57. A spacer 61 having a threading groove 62 and a guide plate 63 having a thread guide and stop for the free end 64 of the check spring are secured to the free end of the arbor 55. Specification 800,727 is referred to.
Patent GB-122001-A (GB)
Title: Improvements in and relating to Engines, Pumps and Compressors.
Inventor: SULLIVAN PATRICK JOHN MONAHAN
IPC: F02B59/00
Filed: 1917-12-31
Abstract: 122,001. Sullivan, P. J. M. Dec. 31, 1917. Compression engines; driving-gear.- The cylinders rotate bodily in such a manner that the axis of each cylinder remains parallel to its original position, and the pistons are caused to assume a bodilv movement of rotation of equal magnitude in the opposite direction. The engine may have any number of cylinders. The movements may be produced by mounting cylinders 10, 11, Fig. 4, on a pair of equal cranks 17, 18 rotating in the same direction, pistons 12, 13 being secured to a rod 14 engaging a crank 22, which is geared to the cranks 17, 18 so that it rotates at the same speed but in the opposite direction. The power may be taken from any or all of the crank-shafts. In the fourstroke-cycle internal-combustion engine shown in detail in Figs. 1 and 2, the cylinders and pistons are arranged as indicated in Fig. 4. The cam-shaft 27 is mounted in a bracket 19 rigid with the cylinders and is driven by a helical geai 25 carried by the crank 17. The carburettor 31 is mounted on the stationary frame of the engine and is connected to the intake pipes 35, 36 by a swivelling telescopic device 33, 37. The sparking- plugs 40 carry brushes 41 bearing on stationary annular contact-plates 42, which may be provided with conducting and non-conducting parts, so that they serve as contact-breakers.
Patent GB-1499737-A (GB)
Title: Shortenable umbrella
IPC: A45B19/10
Filed: 1975-05-08
Abstract: 1499737 Umbrellas BREMSHEY AG 8 May 1975 [8 May 1974] 19379/75 Heading A4P An umbrella frame comprises a telescopic stick 1 on which is mounted a slider 31 pivotally mounting main struts 14 each of which has its outer end pivotally connected to a rib 8 comprising inner and outer rib parts 8b, 8c respectively, an auxiliary strut 16 connecting the crown 7 with a point intermediate the ends of the main strut and being connected to the corresponding rib by a link 20, a control strut 22 extending between the main strut 14 and an extension 29 of the outer rib part 8c so as to be substantially parallel to the inner rib part 8b and serving to fold the outer rib part upwardly or downwardly when the frame is being closed or opened respectively, the outer end of the control strut being guided in a slot 26 in the extension 29.
Patent GB-138272-A (GB)
Title: An improved material for the manufacture of electrodes of electric furnaces
IPC: C25C7/02
Filed: 1919-08-06
Abstract: 138,272. Olsen, O. R. Aug. 6, 1919 Furnace details.-About 25 per cent of pulverized ore, concentrated, is added to the usual carbonaceous materials for making electrodes of furnaces used for the production of the corresponding metal, for instance copper, iron, iron alloys, or steel.
Patent GB-860782-A (GB)
Title: Improvements in or relating to pivot mounts
IPC: F16C27/08
Filed: 1959-06-17
Abstract: 860,782. Moving-coil instruments. GONZALEZ, A. June 17, 1959 [June 18, 1958], No. 19425/58. Class 37. [Also in Group XXV] A pivot 5, intended for use in a moving-coil measuring instrument, is secured in a support member 7 which has substantially line contact with the internal wall 11 of a sleeve-like casing 1 in a plane substantially perpendicular to the longitudinal axis of the casing, the member 7 and casing 1 being biased apart in the direction of the longitudinal axis by a spring 16 which also retains the member in the normal centred position and the force of which can be adjusted by a screw 12. The member 7 has substantially frusto-conical portions 8, 9 united by an integral rim 10 of a diameter such that the member forms a friction-tight fit within the casing 1, and the neck portion 14 of the screw 12 fits with clearance in an aperture 3 in the casing to allow for lateral displacements ot the pivot.
Patent GB-123506-A (GB)
Title: An Improved Flexible Coupling.
Inventor: LINDSAY WILLIAM HENRY
IPC: F16D3/72
Filed: 1918-11-26
Abstract: 123,506. Lindsay, W. H. Nov. 26, 1918. Universal joints.-In coil-spring shaft couplings or universal joints, lugs g, h on or near the spring ends engage recesses i, j in plates or flanges a, b on the shafts c, d. The spring, which may be circular in section and of two or three turns, surrounds a boss e, which may be loose or integral with one of the plates a, b. The plate b slides on the shaft d, spring-surrounded bolts l connecting the two plates.
Patent GB-496106-A (GB)
Title: Improvements in or relating to locking means for use in connection with devices for releasing the wheels of bicycles, motor-cycles and the like
IPC: B62K25/02
Filed: 1938-07-01
Abstract: 496,106. Detachable wheel mountings for cycles &c. HOCHHAUS, S. July 1, 1938, No. 19518. Convention date, Nov. 4, 1937. [Class 136 (ii)] In a, detachable wheel mounting for motor and other cycles &c. of the type in which the wheel axle is held in position in lugs on each prong of the fork by means of a pivoted yoke adapted to be swung away to release the axle and wheel, the pivoted yoke is retained in the operative position in the following manner. Each lug 1 on the fork is formed with a recess 2 to receive the axle 3, and is provided with a pivot pin 7 for a member 8, which is forked to receive one end of a yoke 10, a cross-pin 9 in the member 8 engaging a slot 12 in the yoke to provide a pivotal and slidable connection. The yoke 10 is recessed at 11 to engage the underside of the axle 3, and its outer end slidably engages the end wall of a cap or sleeve 13, which is urged inwards by a compression spring 16. The rim 19 of the cap 13 is thus adapted to snap into a recess 6 in the lug 1. A screw 18 is then actuated to force the inner end of the yoke 10 upwards to clamp the yoke against the axle 3.
Patent GB-786489-A (GB)
Title: Electrical control systems
Inventor: NEWMAN EDWARD ARTHUR
IPC: H02P7/26
Filed: 1954-07-02
Abstract: 786,489. Automatic speed control systems. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 23, 1955 [July 2, 1954], No. 19518/54. Class 38 (4). In a system for automatically controlling the speed and angular phase position of a synchronous electric motor a comparison is made between the phase of timing pulses and pulses produced by rotation of the motor, the phase of alternating current supplied to the motor being controlled in dependence on stored voltages produced by sampling with one set of pulses a sawtooth voltage derived from the other set of pulses and in dependence on the average value of the sawtooth voltage. As applied to producing synchronous rotation of a three-phase motor driving a magnetic recording drum store for a digital computer, an additional track is provided on the drum to produce a " drum " pulse at each digit position. These drum pulses are applied to terminals t2, t3, Fig. 2, squared by a circuit including valves V3, V4 and injected through a transformer T into a clamp circuit formed by diodes D1-D4. A pulse generator produces " clock " pulses at a standard frequency which are applied through terminal t1, amplified by a valve V1 and converted to sawtooth form by a circuit including a valve V2. Each time a drum pulse occurs, diodes D1-D4 are rendered conductive and a condenser C5 is charged to the instantaneous value of the sawtooth voltage and remains at that voltage until the next drum pulse. The voltage across condenser C5 which is thus dependent on the relative phase of the drum and clock pulses is applied through a cathode-follower valve V5 to control a valve V8. Another valve V7 is controlled by the mean sawtooth voltage derived by a smoothing network R10, C10 from the output of valve V2. The valves V7 and V8 are arranged to be equally conductive when the voltage across condenser C5 is equal to the mean sawtooth voltage, i.e. when the drum pulses occur midway between the clock pulses, which is the required condition. The two valves of each pair V9 and V 10, V11 and V12, V13 and V14 then conduct equally and equal out-of-phase sinusoidal components derived through resistance-capacity networks from a divider N supplied from the clock pulse generator are combined to produce a three-phase voltage having a certain datum phase at terminals t6, t7, t8 for supply to the motor. If the phase relation between drum and clock pulses alters there is a change in the relative magnitude of the above-mentioned out-of-phase components to cause the three-phase voltage to lag or lead to the extent necessary to restore synchronism. To reduce hunting a differential component of the voltage across condenser C5 is applied to valve V7 through condenser C10 from a circuit including valves V5 and V6 and an integrating circuit R7, C7. The input terminals for the drum and clock pulses may be interchanged and the three-phase motor may be replaced by a single-phase motor.
Patent GB-454735-A (GB)
Title: Improvements in multi-way electric switches for use in radio and like circuits
IPC: H01H19/58
Filed: 1935-07-11
Abstract: 454,735. Mechanical switches without quick action. MALLORY & CO., Inc., P. R., 3029, East Washington Street, Indianapolis, Indiana, U.S.A. July 11, 1935, No. 19813. Convention date, Oct. 5, 1934. [Class 38 (v)] A multi-way switch for use in radio and like circuits comprises a switch bank base of insulating material having a central circular opening and a circumferential series of openings adapted to receive switch fingers in selected positions and a rotatable disc of insulating material disposed within said central opening in substantially the same plane as said base, the switch fingers having contact portions overlying the central opening and co-operating with contacts mounted on the rotatable disc. As shown in Figs. 1, 2, the movable contact member comprises an insulating disc 72 mounted on the flattened extension 47 of the rotary operating shaft, the disc 72 being formed with a number of apertures in which resilient contact pieces 75 of hair-pin formation are placed so that during rotation of the switch shaft the upper ends of contacts 75 engage fixed contacts 69 while the lower ends bear against a bus-bar which, as shown in Figs. 2 and 3, consists of two sections 76, 76<1> separated by spaces 77. The bus-bar is supported at one side of the rotor disc by a U-shaped support 83, 84 riveted at 86 to the annular insulating bank base 60 carrying the fixed contacts which bears against an insulating disc 80 below the bus-bar sections which may have projections 81 bent over through apertures in the insulating plate. The fixed contacts are formed with reduced U-shaped necks so that they can be inserted in similarly-shaped apertures 68 in the plate 60 and secured therein by bending or crushing. Conductors 78 for leading current to the bus-bar sections are similarly supported below the plate 60 by insertion into apertures 64 and by crushing the reduced portions at 79. Any suitable combination of fixed and movable contacts can thus be readily employed. Instead of employing bus-bar sections separate from the movable contacts, theso may be combined and the combined bus-bar and movable contact structure may be formed as an integral spider of stamped metal, the contacting portions being bent upwardly through suitably-formed slots in the rotor disc. These upstanding contact portions are engaged by fixed contact fingers constructed and mounted similarly to those previously described and current to the movable contact and bus-bar structure is led by contact fingers mounted below the disc and bearing on the underside of the bus-bars. The switch is located in each switching position by a roller 54 carried by a springy arm 50 secured to the operating shaft, the roller snapping into indentations 41 in a fixed plate 31. The main operating spindle, which may operate as many switch banks as desired passes through a bush 33 secured to the supporting panel 30 and bears an operating knob 59.
Patent GB-130874-A (GB)
Title: Improvements in or relating to Spring Hooks.
Inventor: LYELL JOHN CLARENCE
IPC: F16B45/02
Filed: 1918-11-30
Abstract: 130,874. Lyell, J. C. Nov. 30, 1918 Spring hooks.-A hook is closed by a pivoted link b engaging over a projection c, on which it is retained by a spring-pressed pawl d.
Patent GB-147807-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K23/42
Filed: 1920-07-09
Abstract: 147,807. British Thomson - Houston Co., (Assignees of Bergman, S. R.). Jan. 16, 1917, [Convention date]. Exciting; pole-pieces, cores, and yokes.-A dynamo-electric machine, particularly for use as a motor for starting an internal-combustion engine and as a generator for battery charging and lighting, has a series field-winding comprising a number of spaced conductors 22 connected to a single group of return conductors 24, the spaced conductors 22 serving to neutralize the armature reaction and the single group of conductors 24 to produce the magnetizing-field at right-angles to the armature field. In the arrangement shown in Fig. 3, the field winding is assembled in the magnetic members 21, and these members are then secured to the magnetic ring 20 as described in Specification 104,197. The spaced conductors 63, Fig. 11, may be distributed in slots in the pole-face so as to neutralize completely the armature field. In the application of the invention to engine-starting and battery-charging, shunt windings 33, 39 surrounding the field poles are also provided, the two windings being connected between an auxiliary brush 29 and the main brushes 37, 38 as shown. The two shunt windings act in opposition to each other both when motoring and generating. The relative directions of the magnetizations produced by the various field windings are indicated by full-line arrows for motoring conditions and by dotted-line arrows for generating conditions.
Patent GB-249005-A (GB)
Title: Improvements in and relating to means for clearing yarns
IPC: B65H63/06
Filed: 1925-08-07
Abstract: 249,005. Gibson, T. Aug. 7, 1925. Clearing-apparatus.-Yarns of flax, hemp, jute, cotton, silk, artificial silk, or other material are cleared by means of a die A of hard material and preferably in the form of a ball, and freely mounted in a slotted tube B so that it is supported by the yarn and may rise and fall and rotate about the yarn, or may have a rotary movement only. The ball is inserted through a gap b' and its accidental removal during use is prevented by a rubber plug or other spring. The tube is turned about a hinge b when the yarn is arrested by the attempted passage of a slub, so that the ball may fall into a cup E and be readily cleared and rethreaded.
Patent GB-135920-A (GB)
Title: Apparatus for Testing Vacuum Ejectors such as those Employed on Railway Locomotives for Brake Purposes.
Inventor: LUARD EDWARD SYDNEY
IPC: B60T17/22
Filed: 1918-12-02
Abstract: 135,920. Luard, E. S., and Rawlings V. P. Dec. 2, 1918. Testing efficiency of vacuum-producing appara tus.-Portable apparatus for testing ejectors fo: vacuum brakes &c. comprises air-reservoirs 1, 1<a> Fig. 1, connected by a pipe 2 and carrying a con nexion 8 and coupling 9, by which they can be con nected to the ejector apparatus. A vacuum gauge 7 and a leakage valve device 11 are mounted or the reservoir, and the whole apparatus is mountec on a trolley 3. The valve device comprises a casting 14, Figs. 2 and 3, adapted to receive the valve seating 15, in which is a segmental port 17, the size of which can be adjusted by turning the graduated plate 18 around the screw 19. The rubber &c. valve 32 is embedded in the enlarged portion 21<a> of the handle 21 and is secured by the head of the bolt 33. The handle 21 is mounted on a spindle 20 bearing in lugs 14<a> on the casting 14, and has an extension 30 adapted to abut against a stop 31 to limit the movement of the handle. The spindle 20 has shoulders 22, 23 and a hole 27 through which can be passed the hasp 28 of a padlock &c. 29. Shields 35, 35<a> are provided, extending from the casting 14, to prevent adjustment of the port 17 when the handle is in its normal open position (Y, Fig. 2). To adjust the port 17, the padlock &c. is removed and the spindle 20 moved laterally until the projection 30 is clear of the stop 31. The handles 21 can then he turned to the position Z, Fig. 2. The ejector apparatus is tested, first with the driver's brake valve in the emergency position, and the handle 21 in the closed position X, and then with the driver's valve in the running position and the handle 21 in the opened position Y.
Patent GB-960891-A (GB)
Title: Improvements in and relating to coal tar products
Inventor: THOMPSON GEOFFREY HOYLE
IPC: C10C1/19
Filed: 1961-06-02
Abstract: <PICT:0960891/C4-C5/1> The thermal treatment of coal tar binders to increase the material insoluble in benzene or toluene comprises heating the coal tar binder directly with a hot substantially inert gas, condensing the volatile material entrained with the gas, and returning said material to the binder. The inert gas is one which does not react with heated coal tar to any great extent, air being precluded, suitable gases include N2, CO2, and flue gas.  The gas may be the combustion product of a gas burned with the theoretical amount of air, before its introduction into the binder or burnt below the surface of the molten pitch.  The gas is preferably preheated to a temperature above 1000 DEG  C.  As shown, coal gas and air are burned in the combustion chamber C and the hot gases are distributed by E, a perforated pipe or a porous ceramic disc, through the coal tar binder in the vessel D.  The coal tar pitch preferably has a residence time of 5 minutes.  A soft pitch produced in an adjacent continuous tar still enters the vessel D by line F at 300 DEG  to 350 DEG  C., and the flow of coal gas and air into the combustion chamber is regulated to maintain a temperature of 370 DEG  to 375 DEG  C. in vessel D. The treated tar is continuously removed through run off H via a liquid seal through collar I where the temperature is reduced to 200 DEG  to 250 DEG  C.  The off-gases pass through condenser L and cyclone M and the condensed volatiles collected in N are blended back with the cooled treated pitch in the amount required.  The condensed volatiles may be returned to the thermal treatment vessel or may be blended with the treated product.  A coal tar heavy oil may also be blended with the product.