baber/WOPTO huggingface dataset:
Patent GB-983511-A (GB)
Title: Electrical switches with arc-breaking devices
IPC: H01H33/91
Filed: 1961-09-21
Abstract: 983,511. Load-break disconnecting switches. JAMES R. KEARNEY CORPORATION. Sept. 21, 1961 [March 22, 1961], No. 33825/61. Heading H2B. A load-break switch comprises main separable contacts 24, 29, shunt contacts 95, 100 which take the current on the initial separation of the main contacts, and an arc-breaking device 125 which is connected in shunt with the main contacts on their further separation and prior to the opening of the shunt contacts, the arc breaking device effecting final current interruption after the opening of the shunt contact 95, 100. In the arrangement shown, the circuit is maintained through the contacts 95, 100 until a conducting lug 153 on the contact-carrying arm 29 engages in a pivoted fork 151 on the arc-breaking device to complete a circuit through the device. Thereafter, the contacts 95, 100 separate and then the rotation of the fork 151 causes the opening of contacts within the device 125. The device 125 is detachably mounted in a socket 119 and is retained by a rotatable latch 128 having an arm 131 which may be turned by a switch stick to release the device 125 for removal by the switch stick. Specification 983,512 is referred to.
Patent GB-605135-A (GB)
Title: Improvements in or relating to magazines or containers for cartridge priming compositions
IPC: F42C19/08
Filed: 1945-12-14
Abstract: 605,135. Ordnance cartridges; explosive compositions. PRING, J. N. Dec. 14, 1945, No. 33974. [Classes 9 (i) and 9 (ii)] Relates to primers for insertion in ordnance cartridges comprising a base member having a percussion cap-holder and a detachable magazine for the priming composition, and consists in providing a magazine primer casing in which the wall is of self-combustible rapid burning composition preferably of nitrocellulose gelatinised with liquid explosive, e.g. nitro-glycerine. The composition may also contain a stabilizer, such as di-ethyl diphenyl urea. Three alternative compositions are given suitable for preparing gelatinised sheet from which the casing C may be formed as a tube of the required wall thickness, using the solventless cordite manufacture technique. The casing C is attached to a brass primer head A by using a collapsable former to expand the casing into a recess K in the head A. A cap E of cordite is pushed into the casing C to close the rear end. The priming composition D is put into the casing C and a cap J similar to E inserted. A final closure G is placed on the forward end of the casing C. A cement may be used to hold the caps and closure in position. The primer head A has an internally threaded opening to receive a plug H carrying a small primer P and a percussion cap or electrically-fired primer F, the plug H being screwed into position after the primer magazine is inserted in the cartridge. Some dimensions are given for guns of 4.7 in. and 5.25 in. calibre.
Patent GB-342766-A (GB)
Title: Improvements in or relating to talking picture apparatus
IPC: G11B17/00
Filed: 1929-11-07
Abstract: 342,766. Belt driving gear. HARRIS, A. W., 76, Brondesbury Villas, Kilburn, London. Nov. 7, 1929, No. 33978. [Class 80 (ii).] A belt 4 is included in the transmission gear between a driving motor 2 and talking picture or like apparatus and means is provided for increasing the distance between the pulleys on which the belt runs, the said means acting in opposition to a retarding device so that the motor takes up its load gradually after it has been started. As shown, the motor 2 is mounted upon a plate 13 pivoted at 14. A plunger 17 of a dashpot 16 is fixed to the plate 13. When the motor is to be started up a pneumatic pump connected to a pipe 18 is operated to lift the plunger 17 and motor 2 rapidly so that the driving belt is slackened. The plate 13 is maintained in the up position by a releasable rest 20 which is moved into the engaging position by a spring-loaded plunger 20a. The motor is then started up, and when it has run up to speed the rest 20 is disengaged from the plate 13 and the dashpot 16 which has a valve 19 permits the plunger 17 to sink slowly so that the belt is gradually tightened, thus allowing the motor 2 to take up the load gradually. In its lowest position the plate 13 rests on an adjustable stop 15. To prevent energization of the motor 2 when the belt 4 is tight the motor circuit has two switches in parallel, one being closed only when the plate 13 is in its highest position and the other being closed only when the motor is running. A brake lever 21 under the action of a spring 26 has a lug 23 engaging a lug 25 on the plate 13 so that when the plate 13 is raised and the motor is running idle the brake 21 engages the pulley 5 and holds it stationary, the brake 21 being released automatically as the plate 13 falls. The driven shaft 6 is connected to a kinematograph projector by a releasable dog clutch 27. The drive from the shaft 6 to the gramophone turntable 1 is transmitted by one or other of two sets of chain and sprocket gearing 8, 8a, the sprocket wheels 7, 7a, being arranged alternately fast and loose on the shaft 6 on the operation of a knob 6a. When the gramophone and kinematograph are working together the sprocket 7 is fast ; if the gramophone is used during the projection of a silent film the wheel 7a is fast. A base 30 carrying the motor 2, dashpot 16, and the brackets 34 of the pivot 14, is supported from the main structure of the machine by bolts 32 surrounded by rubber shock-absorbing sleeves 33. Specifications 336,684, [Class 80 (ii), Gearing, Variable-speed &c.] and 341,170 are referred to.
Patent GB-1023547-A (GB)
Title: Fluid pressure actuators for fluid pressure operated systems
Inventor: DOBRIKIN HAROLD LAURENCE
IPC: B60T17/08
Filed: 1962-09-06
Abstract: 1,023,547. Fluid-pressure brakes. BERG AIRLECTRO PRODUCTS CO. Sept. 6, 1962, No. 34218/62. Heading F2F. A fluid-pressure actuator for a vehicle brake comprises a housing providing a service chamber 12, to which pressure fluid (e.g. compressed air) is supplied via inlet 14 from a driver's valve to apply the brake, via a disc 15 and rod 17, and also providing an emergency chamber 26 formed between a dividing wall 13 and a piston 28, the chamber being normally maintained pressurized by the fluid supply to the driver's valve, to which it is connected through an inlet connection 27, so as to compress a non- linear spring 40, whereby if the pressure of the fluid supply drops below normal the spring 40 moves the piston, and a tubular extension 30 of the piston passed sealingly through the wall 13 engages and moves the diaphragm to apply the brake. The housing has a removeable cover 2 at the front end to protect the diaphragm, which is clamped between the cover and a flange 9 on the housing by a clamp ring 10. The rear end of the housing is closed by a plate 35 which is held in place by a ring 37 engaged in a groove 36 in the wall of the housing and with which it has a bayonet connection. An adjustment member 47, rotatable in the plate 35, is prevented from axial movement by a split ring 50, and a nut 44 engaged on a threaded part of the adjuster is prevented from rotating by engagement with the wall 41 of the extension 30, the interior of the extension 30 being hexagonal for this purpose. The nut acts as a stop to limit movement of piston 28 in the brake.applying direction, but its primary purpose is to enable the spring 40 to be compressed by manually rotating head 49, so that the assembly comprising plate 35, spring 40, piston 28 and extension 30 can be removed without outward explosion of the spring when plate 35 is freed. Reference has been directed by the Comptroller to Specification 911590.
Patent GB-896902-A (GB)
Title: Improvements relating to the continuous casting of metals
Inventor: SAVAGE JOHN
IPC: B22D11/053
Filed: 1959-10-09
Abstract: 896,902. Continuous casting processes. CONTINUOUS CASTING CO. Ltd. Oct. 7, 1960 [Oct. 9, 1959], No. 34387/59. Drawings to Specification. Class 83 (1). In continuous casting the mould is reciprocated according to a cycle which includes a period of downward movement at a uniform speed which is approximately equal to the speed of descent of the casting, succeeded by a period of uniform downward deceleration until the mould reaches zero velocity, and then by a period of uniform upward acceleration, said deceleration and acceleration having the same value f which does not exceed the value of the expression 12 Rv/t(1-R)<SP>2</SP> where v is the uniform downward speed of the mould in inches/ second, t is the time in seconds of downward travel of the mould at uniform speed, and R is the ratio of the said time t to the time T in seconds of one complete cycle of mould reciprocation. The upward acceleration is followed by a period of uniform upward deceleration until the mould reaches zero velocity, followed immediately by a period of uniform downward acceleration until the mould attains the said downward speed v, the said upward deceleration and downward acceleration having the same value F which is greater than or equal to the value f. Specifications 437,064 and 806,803 are referred to.
Patent GB-1123502-A (GB)
Title: Side flap folding section of a rotary envelope making machine
Inventor: BURNETT ARTHUR HALSEY
IPC: B31B19/00
Filed: 1966-08-01
Abstract: 1,123,502. Feeding blanks in envelope-making machines. BERKLEY MACHINE CO. 1 Aug., 1966, No. 34391/66. Heading B5D. [Also in Division B8] Envelope blanks (A), Fig. 1 (not shown), are carried through the folding section of an envelope-making machine on a conveyer 32 having holes 36 enabling the blanks to be held by suction as their outer flaps (b) are turned inwards by fixed ploughs (7, 8) on either side of the conveyer. A continuous vacuum is applied to a manifold 38 which has guide rails (44, 45), Fig. 4 (not shown), which co-operate with a foraminated cover 46 in supporting the upper run of the conveyer. The blanks are scored en passing between rollers 2, 3 and delivered on to guides (4, 5), a roller 50 pressing them on to the conveyer 32. Rails (9, 10) co-operate with the ploughs (7, 8). A mechanism 12 applies gum to the side flaps of each blank by means of a roller 15 having applicator blades 16, (17).
Patent GB-1099614-A (GB)
Title: Improvements in and relating to cleaning apparatus and particularly to devices for cleaning fluorescent tubes
IPC: A47L13/38
Filed: 1966-08-01
Abstract: 1,099,614. Cleaning apparatus. J. B. HUNT and N. E. HUNT. Aug. 1, 1966 [Aug. 12, 1965], No. 34435/66. Heading A4F. A device for cleaning fluorescent tubes and the like comprises a cleaning head 12 having two flexible arms 18, 20 which helically extend in opposite directions from a base portion 16 to which a handle assembly 14 is attached, the arms 18, 20 being provided with a cleaning surface 34 which by manipulation of the device can be arranged to touch the outer wall of a tube 52 in such a way that by subsequently moving the device axially of the tube the entire peripheral wall of the tube can be cleaned. The cleaning surface 34 comprises piled fabric material 38 which may be a copolymer of vinyl chloride and acrylonitrile or lamb's wool, nylon, or polyethylene terephthalic and which extends from a backing (36) (Fig. 3, not shown) adhered to the arms 18, 20. The cleaning head 12 and also the handle assembly 14 which may comprise a number of releasably detachable sections 40 is of electrically non-conductive material.
Patent GB-1361463-A (GB)
Title: Manufacture of sheet materials
IPC: B05D1/00
Filed: 1971-07-23
Abstract: 1361463 Coating apparatus B R I T I S H UNITED SHOE MACHINERY CO Ltd 23 July 1971 [24 July 1970 27 May 1971] 34550/ 71 Heading B2L [Also in Division B5] An apparatus for coating a carrier belt 112, e.g. of a silicone rubber with a heat-softenable plastics material on particulate form comprises a rotary electrically earthed metal drum 114 around which the belt is advanced, a fluidised bed device 132 adjacent to the drum and electrical apparatus for effecting a voltage differential between the drum and the device so that the particles from the fluidised bed are attracted towards the drum and applied as a layer to that portion of the belt passing between the fluidised bed device and the drum. The fluidised bed device 132 which is mounted on tracks 134 for movement widthwise of the machine from an inoperative powder-receiving position to an operative position directly under the drum and the belt comprises at least one chamber 135, 139, 144 containing the particulate material, an agitating mechanism (not shown) and an air inlet 136 coupling a blower to space below the porous grid bed 137. The fluidised bed device may optionally comprise a width-wise divider so that a second powder different from the first may be applied in overlying relation to the powder of chamber 135. An electrostatic spray gun 14 comprises a nozzle 24 including a conical metallic outer member 26 and a metallic central member 28 connected by wire 30 to a negative pole of an electrostatic generator to impart a change to particles carried past them for deposition on earthed metal plate 10.
Patent GB-430018-A (GB)
Title: Improvements relating to loose-leaf binders
IPC: B42F13/04
Filed: 1933-12-08
Abstract: 430,018. Loose-leaf binders. GAUBA, J., 51, Lawrence Road, Lahore, India. Dec. 8, 1933, No. 34563. [Class 146 (i)] In a loose-leaf binder of the thong type, the two outermost thongs 9, 10, Fig. 1, of a plurality of thongs are flat and are adapted to engage in oppositely disposed slots 12, Fig. 3, in the side edges of the top and bottom backing leaves 14 of a bank of loose leaves, and the intermediate thongs 11 are round and adapted to engage in the usual slotted holes in the inner ends of the backing leaves and in the loose leaves proper 18, which may be relatively staggered, means for tautening or slackening the thongs being provided. The thongs are fastened at one end to a bar 4 fixed to one cover of the binder, and at the other end to a slidable bar 5 through which passes a screw-threaded rod 6, rotatably mounted on the other cover and having an end 18 adapted to receive a key. The thongs pass beneath clamping-bars 16 carried by hinges 17 on the inner edges of the covers and extending the length of the flexible back 3 of the binder; alternatively loose clamping-bars provided with end slots and intermediate holes are strung on the thongs.
Patent GB-842942-A (GB)
Title: Improvements in and relating to flexible supports
Inventor: COX GEORGE WILLIAM
IPC: F16L3/205
Filed: 1957-11-06
Abstract: 842,942. Resilient mountings. ENGLISH ELECTRIC CO. Nov. 4, 1958 [Nov. 6 1957], No. 34578/57. Class 108(3). In a spring support device which has a negative rate of reaction, a spring 2 supports a load 10 through a lever 1, toggle links 3, 5, and a strut 9. As the strut 9 moves downwardly the resistance to its movement decreases.
Patent GB-972020-A (GB)
Title: Fluted splice cap
IPC: H01R4/20
Filed: 1961-09-27
Abstract: 972,020. Sleeve couplings. BUCHANAN ELECTRICAL PRODUCTS CORPORATION. Sept. 27, 1961 [Nov. 21, 1960], No. 34610/61. Heading H2E. A splice cap comprises a thin-walled cylindrical conducting metallic sleeve having a body portion 20 with a peripheral flange 22 at one end, the body portion being fluted to form a plurality of circumferentially spaced axial ribs 24 protruding into the sleeve bore to a distance preferably not more than 15% of its inner radius. The ribs 24 and complementary recesses 26 on the outer surface of the sleeve are uniformly spaced, so that during a deformation operation some of the recesses 24 act as foci for crimping die pressure application, intermediate ribs restrict the migration of contained leads into undeformed peripheral areas, and the fluted construction provides extra rigidity.
Patent GB-760898-A (GB)
Title: Improvements in extruded bodies of aluminium or aluminium alloy
IPC: C22C1/04
Filed: 1954-11-30
Abstract: 760,898. Extruding. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Nov. 30, 1954 [Dec. 3, 1953], No. 34617/54. Class 83 (4). In the extrusion of aluminium or aluminium alloy, particularly for the sheathing of electric conductors, the aluminium or aluminium alloy is divided into small grains which are coated by a thin layer of lead, tin, or some other metal having a low-melting point which does not alloy with aluminium at the extrusion temperature ; the metal is then heated to extrusion temperature and extruded. The aluminium or aluminium alloy after being granulated is placed in a drum and sprayed with tin or lead. During extrusion the metal layer on the grains serves as a lubricant between the grains and between the extrusion metal and the parts of the extrusion press. The latter may be a conventional piston press or a screw press.
Patent GB-195163-A (GB)
Title: Improvements in and connected with ball bearings particularly adapted for application to the axles of rolling stock
IPC: B61F15/16
Filed: 1921-12-23
Abstract: 195,163. Luard, E. S. Dec. 23, 1921. Ball bearings; dust &c., excluding.-In a spherical ball bearing for the axles of rolling stock, the load is hung from the outer race so as to permit of lateral and/or angular movement between the load and axle. The inner races f are fixed to the axle g and the outer races a, which have spherical bores, are held in housings s pivoted below the axle g to a lever w which is pivoted to ribs n integral with the axle-box, Fig. 4. The housings s are preferably in halves, Fig. 5 and have flattened portions z which butt against the thickened side walls 1 of the axle-box so as to receive blows due to shunting operations. The axle-box is preferably in halves secured together by bolts 4 and is secured to the vehicle by bolts which pass through holes 10 in the side ribs n, Fig. 4. To prevent the entry of dust &c, while allowing the movement of the axle relative to the axle-box a flanged washer o is loosely mounted on the axle and retained in place by a plate q, Fig. 2. There may be any number of bearings in the axle-box and they may be pivoted to levers in a manner such as shown in Fig. 6.
Patent GB-908271-A (GB)
Title: Warp knitted knotless net
IPC: D04B21/10
Filed: 1959-10-13
Abstract: 908,271. Knitting. SCHEIBE, W. H. Oct. 13, 1959 [Oct. 18, 1958], No. 34684/59. Classes 74 (1) and 74 (2). A warp knitted knotless net wherein the sides of the net apertures are formed either by singleneedle or double-needle warp chains, has reinforcing threads interlaced with the warp chains that are incorporated with the warp chains without being knitted therewith, the reinforcing threads passing from one warp chain to the adjacent warp chain and crossing each other at regular intervals to form connecting- points between the warp chains. The connecting points between two warp chains are staggered relatively to the connecting-points between them and adjacent warp chains. Fig. 1 illustrates a net having the sides of the apertures formed of single-needle warp chains in which the actual warp chains are not interknitted at the connecting-points whereas Fig. 5 illustrates a net having the sides of the apertures formed of double-needle warp chains in which the actual warp chains are interknitted at the connecting points in addition to the reinforcing threads crossing each other.
Patent GB-417633-A (GB)
Title: Improvements in or relating to multiple groove expanding pulleys
IPC: F16H61/662
Filed: 1933-12-12
Abstract: 417,633. Variable-speed gearing. JANNIN, M., 8, Rue de la Republique, Meudon, Seine-et-Oise, France. Dec. 12, 1933, No. 34955. [Class 80 (ii).] In expanding-pulley belt-gearing comprising a multi-groove pulley having groups 1, 3, 5 and 2, 4, 6 of curved or flat-faced conical flanges, the flanges of each group being connected together so that the groups can be moved towards or away from each other for varying the working diameter of the trapezoidal belts 17, the flanges are removably connected together by rigid means. The pulley-gear may be used in countershaftform to control one of the three elements of an epicyclic train. The flanges of each group may be connected by axial bolts 11 carrying spacing-sleeves 12, passing loosely through flanges of the other group, or simply by axial bolts screwing into each flange of the group. In Fig. 1 all flanges are feathered to the shaft 7, and control-members, not shown, engage grooves 15. In a modification, Fig. 3, not shown, the flanges of one group, separated by spacing-sleeves on the shaft, and keyed, together with the sleeves, thereto, are bolted against a shoulder on the shaft by an end-nut thereon, and those of the other group are secured together by screwed bolts and slide on feathers on the spacing-sleeves of the former group. The groups are constantly pressed together by a spring so that the working-diameter varies automatically in accordance with the belttension. In Fig. 5, a countershaft pulley-gear drives a sun-wheel 145, or annulus of a bevel or spur epicyclic train, the planet-carrier 143 of which is secured to a driving shaft 101. By increasing the ratio of the pulley-gear the driven sun-wheel 147 can be brought to a standstill or reversed. The two flanges 103, 105 of the first driving-pulley are fixed to the shaft 101, its movable flanges 104,106 being connected, through a ball thrust-bearing 142, with the movable flanges 133, 135 of the last drivenpulley, the fixed flanges 134, 136 of which are secured to a sleeve 137 carrying the sun-wheel 145. End-thrust between opposed flanges of the main driving- and driven-pulleys is taken by a ball thrust-bearing 148. On the countershaft, the flanges 114, 116, 117 and 119 are fixed to the shaft 112, whilst the flanges 113, 115, 118 and 120 move together so that the driven-pulley 113-116 contracts whilst the driving-pulley 117-120 expands. Control is effected by turning a sprocket-wheel 128 to move a screwed cage 130 supporting the endflange 120. Belt-tension is adjusted by a handcrank 163, secured to eccentric parts 164 of a shaft which supports the countershaft-frame 123. In a modification, Fig. 7, not shown, the countershaft is stationary and eccentrically mounted, the pulleys being mounted on drums which rotate freely on the shaft. The bevel epicyclic-gearing is mounted inside a drum which supports the first driving-pulley. The gear may be used in motor-vehicles, hoists, machine tools, conveying apparatus, or in the rudders or turrets of warships.
Patent GB-1046459-A (GB)
Title: Improved safety arrangement for the field windings of dynamo-electric machines
Inventor: BALCOMBE ROGER
IPC: H02K11/04
Filed: 1962-09-13
Abstract: 1,046,459. Dynamo-electric machines; electromagnetic switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 6, 1963 [Sept. 13, 1962], No. 34985/62. Headings H2A and H2B. A rotor field winding 1 fed from three-phase windings 40 over rectifiers 41 carried on the rotor, is protected by a discharge resistor (43, 59) and a disconnecting switch, both also carried on the rotor. The resistor may be switched or permanently connected across the field winding. The switch may be manually operated, or automatically operated in response to the voltage, or frequency in the field winding, or the rotor speed. The switch shown in Fig. 2 (not shown) comprises contacts 46, 47, 48, 49 in a body 50 rotating with the rotor. Contact fingers 51, 51<SP>1</SP> on body 52 which also rotates with the rotor, are axially movable against spring 52 by non- rotating member 54. In the drawing accompanying the Provisional Specification (not shown) contacts 6, 7, 8, 9 are carried on disc 10 on the rotor shaft, and co-operating contact fingers 12, 13, 14, 15 are on disc 16 which also rotates but is also axially movable by lever 18.