June 26, 1914. THE COLLIERY GUARDIAN. 149? Bromsgrove, July 4.—Coal and coke to the Bromsgrove Grouped Council Schools, for the managers. Tenders to Mr. J. Lloyd, correspondent, Education Offices, Bromsgrove. Bury (Lang.), July 1.—Coal and coke for the Bury and District Joint Hospital Board. Forms from Mr. F. Wild, clerk, Cross-street, Bury. Caerphilly, July 1.—Coal for the Bhymney and Aber Valleys Gas and Water Company. Form from Mr. Arnold W. Branson, general manager, St. Martin’s-road, Caerphilly. Canterbury, June 29.—Coal for the Corporation. Par- ticulars from Mr. Henry Fielding, town clerk, Town Clerk’s Office, Canterbury. Coventry, June 29.—About 90,000 tons of gas coal and nuts, for the Corporation. Forms from Mr. Fletcher W. Stevenson, engineer and genera] manager, Gas Works, Coventry. Deal, July 8.—About 350 tons of best hard steam coal or screened nuts, for the Deal and Walmer Joint Water Board. Tenders to the offices of the Board, Queen-street, Deal. Downpatrick (Ireland), July 4.—About 160 tons best English coal, to the Down County Infirmary, for the Com- mittee of Management. Tenders to Mr. D. Smith, registrar. Drogheda (Ireland), July 6.—About 50 tons best Wigan coal; 14 tons Scotch hard Ayr (baker’s coal), large; 100 tons best Cumberland steam coal, for the Board of Manage- ment of Drogheda, Dunshaughlin, Kells, Na van and Trim District School. Tenders to Mr. M. E. Malone, clerk to Board. Dunmanway (Ireland), June 30.—About 70 tons of best red ash or screened Whitehaven coal, for the Guardians. Tenders to Miss Florence J. Crowley, clerk of union. Ealing, June 30.—Household coal and coke for the Cor- poration. Forms from borough surveyor, Mr. W. B. Hicks, Town Hall, Ealing, W. East Dereham, June 29.—About 2,200 tons of screened gas coal or nuts for the Urban District Council. Forms from Mr. B. H. Vores, clerk to the Urban District Council. Evesham, July 10.—From 500 to 3,500 tons best screened gas coal, for the Corporation. Tenders to Mr. Thomas A. Cox, town clerk, Town Clerk’s Office, Evesham. Filey, June 29.—About 2,300 tons of gas coals, for the Urban District Council. Forms from Mr. Henry Tobey, engineer, Malton, Yorkshire. Finchley, July 3.—From 70 to 90 tons of coal, Bidding’s best bright or other coal. Tenders to the clerk, Mr. V. Wells, Ballards-lane, Church-end, Finchley. Fleetwood, July 2.—Bough coal, for the Urban District Council. Forms from Mr. A. Cottam, clerk to the Council, Town Hall, Fleetwood. Glin (Ireland), June 29.—Coal for supplying the Glin District School (carriage free) with 180 tons of best 4 ft. Wigan, Whitehaven, or Orrel coals, screened and free from slack, for the Board of Management. Tenders to Mr. John Conway, clerk. Harrow, July 3.—Coal and coke for the Middlesex Education Committee (Harrow Division). Forms from Mr. Arthur Fillmore, divisional clerk, Technical School, Harrow. Harrow-on-the-Hill, July 4.—Slack, house coal and coke breeze, for the Urban District Council. Forms from Mr. J. P. Bennetts, engineer and surveyor. Hastings, July 14.—About 400 tons of Cwmaman smoke- less steam coal for the Corporation. Forms from Mr. P. H. Palmer, borough engineer, Town Hall, Hastings. Hatfield.—Good South Normanton cobble coal, for the Guardians. Tenders to Mr. Ernest J. Dunham, clerk, Hillside, Hatfield, Herts. Haverhill (Suffolk), July 14.—Supply of 600, 1,200 or 1,800 tons of best gas coal (screened or unscreened) for the Urban District Council. Tenders to Mr. James Beasley, clerk, Haverhill. Huntingdon, June 30.—Good house coal, cobbles, and coke, for the Hunts Education Committee. Forms from Mr. S. G. Cook, clerk to the committee, County Education Offices, Huntingdon. Ipswich. — House and steam coals to the Sanatorium. Forms from the Steward at the Sanatorium. Ktllough (Ireland), July 13.—About 140 tons best Whitehaven coal, to the Charles Sheils Institution, Killough, for the Local Board of Governors. Tenders to Mr. H. Swail, superintendent, Board Boom. Kilmarnock, June 29.—About 20,000 tons gas coal, and about 250 tons pyrites acid, for the Corporation. Forms at the Gas Offices, Biverbank, Kilmarnock. London, E., June 30.—About 200 tons of house coal, for the managers of the Poplar and Stepney Sick Asylum District. Forms from the clerk, Bow, London, E. London, W., June 29.—House coal for the St. Marylebone Guardians. Forms from the clerk to the Board, Guardians’ Offices, Northumberland-street, Marylebone-road, W. Luton, June 29.—Coal, etc., for the Guardians. Particu- lars from Mr. William Austin, clerk, 7, George-street West, Luton. Maidstone (Kent), July 6.—Good household coal, for the Kent County Council Education Committee. Forms from the Stores Superintendent, Sessions House, Maidstone. Manchester, June 30.—Best house and burgy coal, for the Corporation. Further particulars at the Steward’s Office, Town Hall. Mitchelstown (Ireland), July 2.—About 140 tons of best coal, for the Guardians. Tenders to Mr. T. A. O’Brien, clerk of Union. Molenbeek (Brussels), June 30.—Coal for the civil hospitals. Information from the Administration des Hospices Civils, a 1’Hopital, Molenbeek-Saint-Jean-lez- Bruxelles. Newbury, June 30.—About 5,000 tons of gas coal, for the Corporation. Tenders to the chairman, Gas Committee, Gasworks, Newbury, Berks. Northwich, July 1.—About 9,000 tons of screened gas coal, for the directors of the Northwich Gas Company. Tenders to Mr. P. S. Welbourn, secretary. Nottingham, July 6.—Coal for the Education Committee. Forms from Mr. J. B. Ward, Education Offices, South Parade. Pentre, July 2.—For the Bhondda Urban District Council (Gas and Water Department) : (1) 24,000 tons of through and through gas coal; (2) 2,500 tons of cannel coal. Forms from the engineer and manager, Gas and Water Offices, Pentre, Bhondda. Plymouth, June 29.—About 50 tons large house coal for the Visiting Committee of the Plymouth Borough Asylum. Forms from Mr. C. Linton, clerk of the Asylum, Blackadon, near Ivybridge. Plymouth, July 4. — Steam and house coal, for the Guardians. Tenders to Mr. W. H. Davey, clerk to -the Guardians, Greenbank-road, Plymouth. Betford, July 4.—About 9,000 tons of screened gas coal or nuts for the East Betford Corporation. Forms from Mr. J. B. Fenwick, engineer and manager, Gas and Water Offices, Grove-street, Betford. Salford, July 1.—Coal for the Corporation. Particulars from manager, Sewage Works, Weaste, Salford. Salisbury, June 29.—Best Derby brights, and best Derby cobbles to the Municipal Charities, for the Trustees. Tenders to Mr. Hamilton Fulton, clerk to the Trustees, 12, Bolestone-street, Salisbury. Shoreham-by-Sea (Sussex), June 30.—About 1,300 tons of steam coal for the Guardians of Steyning Union. Forms from Mr. A. Flowers, clerk, Union Offices, Shoreham-by- Sea. Southend-on-Sea, June 30.—Coal and coke for the Essex Education Committee. Forms from Mr. H. Bell, clerk to the committee, 38, County Chambers, Weston-road, South- end-on-Sea. Stafford, July 8.—Coal, coke and slack for the Stafford- shire Education Committee. Forms from Mr. Graham Balfour, director of Education, County Council Offices, Stafford. Stoke-on-Trent. — Coal and slack for the Corporation. Forms from the chief electrical engineer, St. Peter’s- chambers, Stoke-on-Trent. Sutton-in-Ashfield, July 6.—About 9,000 tons of well- screened gas coal, free from shale and pyrites, for the Urban District Council. Tenders to Mr. John D. Filler, clerk, Sutton-in-Ashfield. Teignmouth, June 29.—About 5,000 tons of best gas coals, for the Urban District Council. Forms from Mr. J. A. Gray, gas manager. Therfield, June 30.—About 18 tons of coal (best hard cobbles), for the Boteman Charity Trustees. Tenders to Mr. J. Grant, secretary, Boteman Charity, Therfield, Herts. Thornton Heath, June 29.—Coal and coke for the Croydon Guardians. Forms from Mr. Harry List, clerk to the Guardians, Union Offices, Mayday-road, Thornton Heath. Tunbridge Wells, July 1.—Coal and coke for the Cor- poration. Forms from the Borough Surveyor at the Town Hall, Tunbridge Wells. Uxbridge, June 29.—Hard steam Warwickshire coal and yard slack, for the Urban District Council. Tenders to Mr. W. T. Harvey, clerk to the Council, Council Offices, 63, High-street, Uxbridge. Uxbridge, July 1.—Coal and coke for the Middlesex Education Committee (Uxbridge Division). Forms from Mr. A. Ambrose Bane, divisional clerk, Whitehall School, Cowley-road, Uxbridge. Walthamstow, July 3.—Coal and coke for the Urban District Council. Forms from the Surveyor, Town Hall, Walthamstow. Whitecroft, June 30.—House and steam coal and coke to the Isle of Wight County Asylum. Forms from Mr. J. H. Green, clerk to the visitors, Whitecroft, Isle of Wight. Wilmslow (Lancashire), June 29. — About 4,000 tons screened and unscreened gas coal and nuts, and 2,000 tons cannel, for the directors of the Wilmslow and Alderley Edge Gas Company. Tenders to Mr. W. H. Welsh, secretary, 52, Brown-street, Manchester. Winchester, July 13.—Best house steam and anthracite coal and coke for the Southampton Education Committee. Forms from Mr. D. T. Cowan, director of education, the Castle, Winchester. Witham, June 29.—Coal for the Urban District Council. Tenders to Mr. William Bindon Blood, clerk to the Council. Wolverhampton, July 4.—Coal and coke for the Corpora- tion. Forms from the accountant, Education Department, Town Hall, Wolverhampton. Wolverhampton, July 7.—Coal and slack for the Corpora- tion. Forms from Mr. George Green, M.Inst.C.E., borough engineer, Town Hall, Wolverhampton. The date given is the latest upon which tenders can be received. CONTRACTS OPEN FOR ENGINEERING, IRON AND STEEL WORK, &c. Ballaghadereen (Boscommon), July 6.—Plant extension of the electricity supply plant, for the Ballaghadereen Electric Lighting Committee. Specifications from Mr. L. J. Lawless, A.I.E.E., consulting engineer, 27, Castlewood- avenue, Bathmines, Dublin. Leadgate (Durham).—Stone Drift.—For the driving of a stone drift about 500 yds. in length at the Eden Colliery, Leadgate, for the Consett Iron Company Limited. Further particulars obtainable at the mining offices, Medomsley, S.O. London, S.W., July 10.—Steam Tubes, etc.—Steam tubes and fittings (manufacturers only), for the Commissioners of H.M. Works, etc. Particulars from the Controller of Supplies, H.M. Office of Works, etc., 18, Queen Anne’s-gate, Westminster, S.W. Naas (Ireland), July 1.— Well Sinking, etc.—For sinking well and erecting pump at Newtown Cross-roads (near Kill), for the Guardians. Specification from the clerk. Bothesay (Bute).—Bore Holes.—For putting down two bore holes to a depth of 300 fathoms at the Bothesay Coal- field, Bute. Bores to commence from the pavement of the present workable coal seam. All information obtainable by letter from Mr. Patrick Mulvey, coalmaster, Calderside Colliery, High Blantyre, or from Cadzow View, Lady-road, Motherwell. Tipton, July 4.—Boiler. — Lancashire boiler, 20 ft. by 7 ft., for the Urban District Council. Specifications, etc., obtainable from Mr. Sidney O. Stephenson, engineer and manager, Gasworks, Tipton. Walsall, July 14.—Alternators.—Two 3,000 kw. turbo- alternators with surface condensers, and motor generator, for the Corporation. Specifications from the consulting engineer, Mr. E. M. Lacey, M.Inst.C.E., 12, Victoria-street, West- minster, London, S.W., on payment of five guineas (returnable). ABSTRACTS OF PATENT SPECIFICATIONS RECENTLY ACCEPTED. 2092 (1914). Improved Arrangements for Transmitting and Receiving Signals. Siemens Brothers and Company Limited, of Caxton House, Westminster, S.W., communi- cated from abroad by Siemens and Halske Aktiengesellschaft, of Askanischer Platz 3, Berlin, S.W.—Belates to a modifica- tion of the devices described in specification No. 17124 of 1913. According to the present invention, by employing a duplicate receiving system, not only the instruments in which the observations differ widely from the mean, but also the magnitudes of these deviations are indicated. In the accompanying drawing, an arrangement according to the invention is shown by way of example. When the trans- mitters have been set, either directly by the indications of the different measuring instruments, or indirectly by mechanical coupling with these, the receivers e15 e2, e3 are set so that their indicators take up positions corresponding to the course setting of the transmitters. Since the transmitting systems g4, g5, g& for the fine adjustments act in common on the receiver e, the latter indicates, as described in the main ■patent, the mean value of the separate settings of the fine adjustment transmitters. (Two claims.) 4105 (1913). Improved Mechanism for Effecting the Dis- charging or Charging of Retorts used in the Manufacture of Gas and for like purposes. Drakes Limited, of Ovenden, Halifax, Yorkshire, and A. Dobson, of 58, Savile Park- road, Halifax.—Belates to mechanism for performing the operation of discharging or effecting the withdrawal of the spent contents or retorts of the vertical or inclined type used in the manufacture of gas, the distillation of shale or for like purposes, and the object is the production of said mechanism of such a character as will enable the withdrawal or dis- charging of any desired and suitable quantity of the spent material (such as coke when coal gas is being manufactured) without the possibility of any larger quantity than is desired being at any time permitted to descend by gravity or other- wise escape from same. A further advantage secured is that the coke extracted is not broken to the extent that is necessary for its discharge by devices at present in use. The accompanying drawing is a longitudinal sectional elevation of apparatus. Use is made in connection with each retort, of mechanism consisting of a pair of semi-cylindrical drums or longitudinal segments of hollow cylinders 2 and 3, which are arranged so that their axes are co-incident, one drum 3 being so much less in diameter and length than the other .drum 2 that it will take into and operate within same, thus the drum 2 may be freely rotated in one direction, while the drum 3 is rotated in the other direction. As these pairs V Z -3 5 8 of drums are being rotated they will at one time present their open sides to the base of the retort P, so that the material within said retort B will, by gravity, descend and enter the drum 3. By continuing the motions of the drums 2 and 3 the opposite or opposing edges 2b and 3b of these drums will commence to approach each other gradually, cutting their way through the material which now extends from the interior of the drums 2 and 3 up into the retort above. These rotary motions being continued after the edges of these drums have met, the portion or part of the material within is cut off or detached from that above, and by the drums 2 and 3 still moving forward their open sides are gradually brought face downwards to deposit their contents into the space below. To enable these drums 2 and 3 to cut away or detach the quantity or portion of coke or the like that has descended into them, their approaching edges 2 and 3 are formed to have teeth or prongs x so shaped as to enable them to dig or cut into the substances that have to be removed by them. In order that these cutting edges may be made to perform their functions by shearing actions the prongs x may be of varying lengths, the longer prongs being made to extend beyond the edges of the drums, but having their inner surfaces flat so that the distance between the points of the prongs on opposite sides of the drum exactly equals or is larger than the inner diameter of the drum. (Two claims.) 11406 (1913). Improvements in or relating to Hutches for use in Collieries and the like. A. C. C. Beid, of Waldensian- cottages, David-street, Lochgelly, Fifeshire.—Has for its object to provide simple and effective means whereby the hutches, when from any cause, such, for example, as the breakage of haulage rope, get out of control, or tend to run backwards or downwards, they are automatically stopped or arrested, irrespective of whether they are travelling up or down an incline. At present the device usually employed for stopping the hutches, commonly known as a “ hutch- joke,” consists of a metal bar pivotally connected at one end