baber/WOPTO huggingface dataset:
Patent GB-221247-A (GB)
Title: Improvements relating to spring suspensions for vehicles
IPC: B60G11/02
Filed: 1923-05-05
Abstract: 221,247. Lutman, C. H., and Ardern, J. L. May 5, 1923. Laminar springs. - Relates to leaf springs comprising two elements normally separated from each other for the greater portion of their length, but progressively contacting with each other so as to stiffen the spring in accordance with increase of load. To resist torsional stresses, the leaves are formed of tapering width, the widest portions being in permanent contact with each other. As shown, a quarterelliptic spring comprises a substantially straight leaf a and a curved leaf b secured together and to the chassis k at their widest portions and having their diverging ends connected by a shackle e carrying at its lower end a support f of rubber &c. The support f may be eccentrically mounted to adjust the distance between the ends of the leaves, and in addition of alternatively, the bolt m connecting the shackle to the leaf a may be adjustable in a slot m<1>. An additional support f<1> may be provided beneath the leaf a. A semi-elliptic spring may be constructed in a similar manner of two leaves secured at their central and widest positions, or two quarter-elliptic springs may be connected by a yoke i as shown in Figs. 5 and 6. In a modified form of connection, shown in Figs. 7 and 8, between the leaves and the yoke i, the ends of the leaves are rounded and fit in a similarly shaped recess t in the yoke, securing bolts u, v being provided. The shackle e, Figs. 5 and 6, may be replaced by bolt having a strap u, Fig. 10, secured to the lower leaf b and prevented from longitudinal movement thereon by a distance piece o. The shank of the bolt passes through the upper leaf a and carries resilient buffers p, p<1>, adjustment being effected by nuts r, s. Three-quarter elliptic and full elliptic springs are formed by combining a quarter-elliptic and a semi-elliptic spring and two semi-elliptic springs respectively.
Patent GB-111093-A (GB)
Title: Improvements in or relating to Explosion Engines.
Inventor: JULES LOUIS DIDIER
IPC: F01L3/24
Filed: 1917-08-25
Abstract: 111,093. Didier, J. L. Oct. 14, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Valve chests, construction of.-The valve spindle 3 is guided by a bush 5 of large diameter so that, on its removal, the valve can be withdrawn clear of the top of the cylinder 'barrel as shown in dotted lines.
Patent GB-331609-A (GB)
Title: Improvements in devices for playing billiards or like games
IPC: A63F7/02
Filed: 1929-04-19
Abstract: 331,609. Langenhaun, M. April 19, 1929. Table games.-A device for playing a billiards game comprises a guide groove b, around which the ball travels after being struck by the cue g, having at its end the flexible resilient ball guide c which is adjusted by the pivoted hand lever d, positioned by reference to the scale e, for deflecting the ball on to the playing surface a where it may strike the ball m and fall through the holes h or enter the openings i to be returned to the rack n.
Patent GB-514061-A (GB)
Title: Improvements in and relating to the production of chlorophyll
IPC: A61K31/40
Filed: 1938-04-23
Abstract: 514,061. Chlorophyll. BRITISH CHLOROPHYLL CO., Ltd., and REWALD, B. A. April 23, 1938, No. 12235. [Class 2 (iii)] , Chlorophyll is obtained from green vegetable material by extraction with one or more non- hydroxylic aliphatic compounds having at least two carbon atoms in the molecule, and wherein one or more hydrogen atoms are substituted by halogen, e.g. ethylene dichloride or trichlorethylene. The chlorophyll is recovered by evaporation of the solvent. The vegetable material may be extracted in,dried condition, and any wax-like substances extracted with the chlorophyll may be removed by treating the solid product obtained from the extract with a volatile liquid ketone, e.g. acetone, which dissolves the chlorophyll but not the wax. The colour effect of the chlorophyll may be increased by treating it with a copper salt, e.g. copper chloride.
Patent GB-618601-A (GB)
Title: Improvements in beacon systems for use in navigation at night or in bad visibility
IPC: G01S7/282
Filed: 1946-04-23
Abstract: 618,601. Radio-navigation. SOC. FRANCAISE RADIO-ELECTRIQUE. April 23, 1946, No. 12278. Convention date, Feb. 15, 1944. [Classes 40 (v) and 40 (vii)] A radio beacon for use with an interrogating radar system comprises a preferably directional aerial coupled to a delay network having a mismatched termination so that a signal received by the beacon is reflected from the termination and retransmitted a short time after the directly reflected signal. When a pulsed transmission is used, the echo signals received by the radar system are separated in time by an interval which is characteristic of the beacon, while when a frequency modulated transmission is used, the beat frequency between the two reflected signals provides the characteristic. One form of beacon comprises a dipole aerial coupled to a short-circuited transmission line, and another form comprises a wave-guide horn connected to a short-circuited wave-guide. In the modification shown, three echo signals are produced. A reflection is produced at R as the signal passes down the line from the aerial, but the component values are so chosen that none is produced when the signal is travelling in the other direction. Other echo signals are produced by direct excitation of the aerial and by reflection at the termination of the line Z2. The radio beacon systems described may be used in the navigation of a channel. A beacon, as described, is placed on one side of a channel and a directly short-circuited aerial on the other side. By comparison of the reflected signals received on a craft, hyperbolic course lines may be defined.
Patent GB-1101303-A (GB)
Title: Counter-stroke forging hammer
IPC: B21J13/04
Filed: 1966-03-21
Abstract: 1,101,303. Forging. J. BANNING A.G. 21 March, 1966 [3 April, 1965], No. 12309/66. Heading B3H. A counter-stroke forging machine includes a pair of hydraulically actuated rams 1 and 2 which move towards and away from one another along guide strips 3 and 4, the strips including parallel prismatic guide surfaces 11, 12 (Fig. 2) which co-operate with corresponding grooves in the two rams. The strips include central portions without the prismatic guide surfaces, in order to allow the rams to be inserted within the machine perpendicularly to the forging direction, and are held to the one-piece frame 5 of the machine by screws 9 and bolts 10. Each ram is also guided by means of extensions 5<SP>1</SP> which slide in bearings carried by cylindrical housings 7.
Patent GB-874311-A (GB)
Title: Improvements relating to the windings of a.c. dynamos
IPC: H02K3/28
Filed: 1959-04-13
Abstract: 874,311. Winding layouts for A.C. machines. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES, ALSTHOM. April 13, 1959 [April 11, 1958], No. 12464/59. Class 35. A synchronous machine is provided with three parallel paths per phase by means of a symmetrical arrangement of the three sets of conductors within each phase band which prevents circulating current. The symmetry of each phase band may be about the centre of this band, or alternatively the band may be divided into two halves each of which is symmetrically arranged within itself. The first sort of symmetry is illustrated in Fig. 1, in which the first phase band, for instance, contains the three conductors in the sequence in the first twelve slots An example of the second form of symmetry is An example of symmetry about the whole and half-band axes is The coils of each pole are connected in series, but they may be connected in parallel to provide six parallel paths.
Patent GB-1096161-A (GB)
Title: Regulating device, for example for temperature or other variables
IPC: G05B11/42
Filed: 1965-03-24
Abstract: 1,096,161. Automatic regulation of variables. A.M. FRIDBERG. March 24, 1965 [March 24, 1964; March 8, 1965], No.12507/65. Heading G3R. A regulating device for a variable, e. g. temperature, humidity, pH or pressure, comprises a movable element 2 whose position depends on the actual value of the variable, a fixed pointer 11 whose position is set to the desired value of the variable, and an arm 13 which is oscillated over a predetermined band of proportionality 6-7 and which carries induction coils 4, 5 and 8, 9 cooperating respectively with metal blades 3, 10 carried respectively by the elements 2, 11. The coils 4, 5 and 8, 9 are associated with electronic circuits (not shown) which control proportional and integral action relays 21, 22 according to the positions of the members 2, 11, the relay 21 controlling by its contact 23 a device for adjusting the value of the variable, and by its contacts 24, 25 and those of relay 22 a reversible electric motor 12, which rotates the arm 13 in one direction or the other (through gearing 18, 20) to adjust the position of the centre of the band of proportionality as a function of the difference between the actual and desired magnitudes of the variable. The connections of the contacts of relays 21, 22 and hence the polarity of the supply to the motor 12, are controlled by a reversing relay 41 which is energized through the contacts 83, 84 of time delayed relays 81, 82 whenever relay 21 is beating, i. e. when the element 2 lies within the band of proportionality. Should element 2 move outside this band, one or other of the contacts 83, 84 opens and relay 41 is deenergized so reversing the action of the motor 12, normal action being resumed when the element 2 rejoins the band. The relay 41 may have an on/off instead of a reversing action so that the motor 12 is permanently de-energized when the element 2 leaves the band, Fig. 6 (not shown). The operation of the device is explained for positions of the element 2 at one side or the other of the pointer 11, Figs. 2, 3 and 4 (not shown). The Specification lists various components suitable for use in the device and discusses a number of modifications, e.g. geared electric motor, magnetic pendulum or bi-metal strip(s) to oscillate the arm 13 (whose period and amplitude may or may not be constant), replacement of motor 12 by bi-metal strip(s) or an electromagnetically driven twodirectional ratchet wheel, replacement of members 8, 9, 10 by a cam-operated micro-switch, Fig. 8 (not shown), and the use of photo-electric cell arrangements, Figs.7 and 9 (not shown) and variable capacitance arrangements in the oscillation and detection parts of the device.
Patent GB-437582-A (GB)
Title: Improvements in bobbins
IPC: B65H75/14
Filed: 1935-04-26
Abstract: 437,582. Bobbins. KIEFER, W. E., 213, South Madison Street, Allentown, Pennsylvania, U.S.A. April 26, 1935, No. 12549. [Class 120 (iii)] In a bobbin having a head or end consisting of a laminated disc comprising layers of textile fabric and paper impregnated with, and bonded together by, a synthetic resin, the paper layers are extended radially beyond the layers of fabric to form a smooth peripheral surface over Which the yarn passes as it is drawn off axially from the bobbin and out of contact with the fabric layers. As shown in Fig. 2, the face portions of the end of the bobbin consist of layers 1, 4 of paper with an intermediate portion consisting of layers 5 of textile fabric such as canvas or linen recessed at the periphery 2 below the peripheries of the layers 1, 4 ; in Fig. 4, the layers 6 next to the barrel of the bobbin are of paper, and the outside layers 7 are of fabric with the edge of the end rounded so that the layers of paper extend beyond those of the fabric.
Patent GB-549748-A (GB)
Title: Improvements in burners of petrol and like stoves
IPC: F23D11/44
Filed: 1941-09-27
Abstract: 549,748. Vapour burners. CROSSLAND & WOOD, Ltd., and WOOD, R. Sept. 27, 1941, No. 12562. [Class 75 (i)] A nipple 8 secured to a tubular vaporizer 1 by a nut 18 is formed with passages 15 leading from the vaporizing space to an annular chamber 17 between the nipple and the nut and with passages 16 leading from the chamber 17 to an axial vapour discharge orifice 12 so that the cleaning needle 14 which is secured by a ferrule 13 to a central rod 3 need not be completely withdrawn from the orifice 12 when the burner is in operation. Instead of providing the chamber 17 the passages 16 may be connected directly to the enlarged bore 11 of the nipple. The withdrawal of the needle 14 may be effected by a single turn of the control handle on the rod 3. A coil spring 7 may be inserted in the vaporizer to choke the fuel supply.
Patent GB-1140004-A (GB)
Title: Glass fibre sizing compositions based on modified epoxy resins
IPC: C08G59/42
Filed: 1967-03-17
Abstract: 1,140,004. Laminates. PPG INDUSTRIES Inc. 17 March, 1967 [21 March, 1966], No. 12609/67. Addition to 1,061,636. Heading B5N. [Also in Divisions C3 and D1] The laminates described are substantially the same as those of the parent Specification 1,061,636, e.g. of woven impregnated glass cloth, except that the binder used in the glass-fibre sizing solution is formed by reaction of a compound containing more than one epoxy group per molecule with a partial ester of a polycarboxylic acid which contains more than one free carboxyl group.
Patent GB-528092-A (GB)
Title: Improvements in electric switches operated by pulling a cord
IPC: H01H17/00
Filed: 1939-04-27
Abstract: 528,092. Quick-action switches; actuation of switches. GENERAL ELECTRIC CO., Ltd., and EDEN, C. G. April 27, 1939, No. 12628. [Class 38 (v)] A cord-operated switch comprises a movable contact arm 4 engageable by a member 7 having cam surfaces 9 to open, in the full-line position, and close, in the dotted-line position, a movable and fixed contact 5, 3. Member 7 is pivoted at 8 and formed with ratchet-surfaces 10 engageable by a pawl 11 on an arm 12 to which the cord is attached. A spring 13 restores the arm about pivot 8 after each pull. Member 7 may be in two parts for operating two switches, the ratchet element being located between the two parts. The cams may be in phase so as to be suitable for two-pole working, or they may be out of phase to provide a two-way switch, a strip 17 then connecting one contact 3 to the other contact 5 so as to form the common pole. In Fig. 1, the base 1 is shown separated from the switch for purposes of clarity. Specification 235,260, [Class 38 (v)], is referred to.
Patent GB-197693-A (GB)
Title: Improvements in or relating to incandescent electric lamps and other similar apparatus
IPC: H01J5/24
Filed: 1923-05-11
Abstract: 197,693. Vello, L. S. May 12, 1922, [Convention date]. Resistance furnaces.-In apparatus for exhausting and sealing electric lamp-bulbs &c. that are made in two parts joined together by a ring of fusible glass, the parts 1, 3 of the bulb are assembled in a support A in the receiver of a pump, and an electric heating-filament f is arranged around the junction of the parts, the filament being mounted in a reflector r pivoted on an adjustable support G<1>. The receiver is exhausted through a tube I and, if required, filled with an inert gas, and current is supplied to the filament to fuse the glass ring either through wires q, Fig. 1, from the outside of the receiver, or from a coil P<2>, Fig. 9, in a. tubular extension U of the receiver, current being induced in the coil P<2> by means of a coil p<2> on the outside of the tube U. The Specification as open to inspection under Sect. 91 (3) (a) comprises electric ovens for refining the glass by melting it in a vacuum to free it from occluded gases. The crucible 4, Fig. 10 (Cancelled), is placed in a refractory vessel fitted with an electric heating-filament 9, this vessel is placed in a polished metal cylinder 13 provided with top and bottom plates, and this cylinder is placed in a jar 6 arranged in the receiver of an air-pump. Spacing-members 16 &c. are arranged between the bottoms of the several vessels. According to a modification, the crucible 4<a>, Fig. 11 (Cancelled), is exhausted directly through a tubular extension 23 of its cover. Sealing-rings 20 of fusible glass are arranged between the crucible and the cover, and the space between these rings may be exhausted. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1065631-A (GB)
Title: Method and apparatus for tying packages and wrapping material
IPC: B65B51/08
Filed: 1964-03-25
Abstract: 1,065,631. Tying bag necks; endless conveyers. BURFORD CO. March 25, 1964 [March 26, 1963], No. 12756/64. Headings B8A and B8C. [Also in Division F2] Gathering the necks of bags.- The open end B (Fig. 20A) of a bag is gathered by being pushed against a taut wire 144d. In the machine illustrated the neck of the bag is flattened by brushes 264, 266 rotating at a higher speed than the conveyer 59 carrying the bag, and the flattened neck is then moved along with a conveyer 77 by rollers 101, 103 to push it against the wire 144d. The wire is gripped at 144c between a fixed abutment 155R (Fig. 4) and the head 133 of a pivoted arm 132. Conveyers; stopping the movement of the bag.- The forward momentum of the bag A carries it from the continuously moving conveyer 59 on to arms (107) (Figs. 3 and 10, not shown) where it is brought to rest by a finger (129a). If a lever (111) is lowered to the position (115b) then the arms (107) drop below the conveyer 59, and by manually turning the wheel (127) so that all the arms (129) are below the conveyer 59, packages may travel straight through the machine without being tied up. Alternatively the lifting arm (107) may be dispensed with and the conveyer (500) (Fig. 49, not shown), which moves intermittently, provided with hooks (502) for gathering the bag neck. As a further alternative a continuously moving conveyer (518) (Fig. 50, not shown) may feed the package on to idler rollers (522), and the tied-up package is then pushed by the succeeding package on to a continuously moving conveyer (520). Tensioning the wire. The wire is fed from a reel (472) (Fig. 7, not shown), is passed between rollers (486), and is tensioned by a spring (488) and idler pulley (480). Passing the wire around the bag-neck and cutting it.-Head 139 (Fig. 20A) of an arm 135 carries the wire around the gathered neck and delivers it to the gap between a gripper 133 and an abutment 155L (Fig. 4). A lever 132 is then moved to clamp the wire against the abutment (155L), simultaneously cutting off portion 144d between no-operating blades 159 and 153L. Twisting the wire.-The ends of the wire are twisted together by three rotations of shaft 142d (Fig. 4), having an end piece 137 shaped to hold the wires. Removing tied-up bag.-After the neck B is tied the arm (129b) (Fig. 10, not shown) is raised to push the bag from the arms (107) thus disengaging the wire from the twisting means (137) and replacing the bag on conveyer 59. Stripper arm (134) also assists in disengaging the wire from the twisting means. Stop motions.-As the rod 296 (Fig. 7, not shown, and Fig. 20A) is moved by the flattened bag neck B a microswitch 292 is operated which causes the driving shaft to turn through one complete revolution and effect one complete tying operation.
Patent GB-1101471-A (GB)
Title: Friction clutch or brake assembly
Inventor: GRAHAM GLENN ROBERT
IPC: F16D55/00
Filed: 1966-03-23
Abstract: 1,101,471. Friction clutches and brakes. ABEX CORPORATION. 23 March, 1966, No. 12849/66. Headings F2C and F2E. In a friction disc clutch or disc or drum/shoe brake, for large vehicles, e.g. in an automatic change speed gear, comprising a friction lining and a co-operating steel opposed surface exposed to cooling oil, the material of the friction lining has an interconnecting porosity and permeability, i.e. it presents, continuously with wear, a surface composed of interconnected voids, and comprises more than 50% carbon (excluding the diamond form). The lining may be of graphite, such as powdered graphite having a furfural resin (e.g. 78% by weight artificial graphite and 22% by weight furfural resin) phenol formaldehyde resin or any thermosetting resin binder, or a non-resin, e.g. pitch, binder; an all-carbonaceous material in which an original binder has itself been carbonized or graphitized; or an amorphous allotrope, e.g. petroleum coke, lamp black, charcoal, coal flour. The lining may be fixed to a solid metal backing plate as by an adhesive resin. Reduction of relative movement of the clutch or brake members is initially by shearing of a thin film of the cooling oil which film is probably ultimately broken. The oil serves to flush away loosened graphite particles. As shown, a multi-disc friction clutch comprises steel driving discs 14 having graphite linings bonded thereto and splined to a driving member 13, itself splined on a shaft 12, and steel driven discs 15 engaging a driven member 16 through pins 17. The discs are engaged by fluid pressure actuation of a piston 19 and disengaged by means, e.g. springs, not shown. Cooling oil is supplied through a port 11 in the shaft 12.
Patent GB-253092-A (GB)
Title: Improvements in or connected with framework for instructional and children's typewriters
IPC: B41J3/36
Filed: 1926-05-20
Abstract: 253,092. Bing Werke vorm. Geb. Bing- Akt.-Ges. June 2, 1925, [Convention date]. Type-lever machines; toy machines; shift-key and space-key actions.-In typewriters for use in teaching or by children, the whole of the mechanism except the carriage is mounted as a unit on a sheet-metal support comprising a plate a having side arms b formed with flanges d to which is secured a channeled member k having comb slots for guiding the key-levers. The pivot shaft of the key-levers may be mounted in a flanged support secured beneath the member k. The type-lever segment s is secured to the plate, and the shift-key frame p, r is mounted on a shaft n carried by lugs l on the plate. The space-key frame i and a universal frame provided with escapement dogs are mounted on a shaft h carried by depending parts of the arms b. The plate may be strengthened by a flange t.
Patent GB-1034173-A (GB)
Title: A digital electric shaft-position encoder
IPC: H03M1/00
Filed: 1963-04-02
Abstract: 1,034,173. Electric selective signalling systems. SIEMENS & HALSKE A.G. April 2, 1963 [April 2, 1962], No. 12939/63. Heading G4H. A shaft position digitizer comprises three sets of contacts-units E, tens Z and hundreds H, Fig. 1-swept by pairs of lead/lag wipers coupled by 10-to-1 gears (not shown) and each pair of wipers is arranged to be energized by the next lower set of contacts to avoid transitional errors. The wipers could be replaced by photo-electric devices. The units encoder comprises ten contacts C labelled 0 to 9 to which potential is applied by one wiper of a pair a, b from one of two slip-rings A, B in dependance upon the condition of a relay S which is controlled by a further wiper g which connects a slip ring G with contacts F. Contacts F are so arranged that potential is only applied to a brush a or b when it is fully on a contact C, thereby preventing arcing. Two further wipers, coupled to wiper a and b by diodes, apply potential to two further contacts I, II (D) which select which wiper of the tens encoder is to be operative. The tens and hundreds encoders are similar to the units encoder except that, as shown, some elements are omitted. A second arrangement (Fig. 2, not shown) is also described.