These columns are open to all patentees. The notices are inserted by special arrangement with the inventors. Terms on application to tbe Advertising Department of the Scientific American. Household Utilities. CLOTHES DRYING FRAME.—J. W. Horner, Chicago, Ill. This invention supplies a frame for use within the confines of a dwelling. It is particularly arranged to elevate the drying frame and the articles suspended thereon from the floor, and if the room in which the frame is installed permits, above the heads of the occupants of the room to allow persons to pass beneath the frame and the clothes. Electrical Devices. INDUCTION COIL.—J. McIntyre, Jersey City, N. J. In this improvement in induction coils an adjustment of the contacts .is obtained in an effective manner, according to the use to be made of the apparatus and relative to the existing strength of the source of electrical energy, the arrangement rendering the employment of the expensive platinum contacts exceedingly economical. It relates to electrical apparatus in Letters Patent of the U. S., twice granted to Mr. McIntyre. He has also invented another induction coil, and it relates to electro-magnetic apparatus, its object being to provide certain improvements in the Ruhm-korff and other types, whereby a non-rotatable contact is bodily moved with its bearing on the bridge or post, to bring this contact in proper relation to the opposing contact and to securely lock the movable contact and its bearing in the adjusted position against accidental movement. Of General Interest. APPARATUS FOR PRODUCING VARIOUS SOUND EFFECTS FOR THEATRICAL AND LIKE PURPOSES.—A. H. Moorhouse, Victoria Works, Bayley Street, Staleybridge, England. This invention relates to apparatus for producing various sound effects for theatrical and like purposes, the apparatus being particularly advantageous for use in combination with kinematographs and the like for imitating the sounds that would be produced in the scenes that are being depicted. Tbe details may be varied to suit particular requirements. It may be operated by one or more electric motors with switches or control handles for the different effects. MAIL BOX AND CARRIER.—H. A. Schultz, Dorchester, Wis. This Invention has in view a box in which the mail is well protected from the weather and readily introduced and removed; and further and principally resides in the mounting of the box so that it is accessible to the carrier without leaving the road, and also accessible from the premises at a substantial distance from the road, the box and its carrier offering no substantial obstruction to travel along the road, but adapted to swing from a position overhanging the road to a reversely extending position. PEANUT ROASTER. — L. Rosenkranz, Rhinebeck, N. Y. This invention pertains to roasters for peanuts and like products, and has reference more particularly to a device of this class, which comprises separable casing sections, a roaster removably mounted between the sections, and a burner under the roaster, the casing having a warmer therein above the roaster. SHOEMAKER'S JACK.—F. O. Rollins, Newburyport Mass. In this case the improvement refers to shoemaker's jacks, and the object is to produce a jack having great durability, which will be adjustable so as to change the height at which the shoe is held, and also to enable the shoe to be held either at the right or at the left side. FLASH LIGHT APPARATUS.—H. J. Paul and F. Klein, New York, N. Y. This invention refers more particularly to photographic and like apparatus which comprises a support, a frame carried thereby, an envelop supported by the frame, for confining the smoke and other products of combustion of the flash-light material, and a slide mounted upon the support and connected with the envelop, so that the last can easily adjust itself to the expansion due to the explosion. TRAY.—C. A. Anderson, East Orange, N. J. The front end of the tray extends upwardly at an obtuse angle relatively to the bottom of the tray to form an abutment which will normally retain slips of paper in the tray, while readily permitting the user to slip the uppermost slip of paper over the inclined front end of the tray by placing the thumb against the extension of said front end formed to retain a pencil, and his first finger on the uppermost slip of paper. SOLDERING APPARATUS.—W. W. Farns-worth, Brushton, N. Y. This invention refers to improvements in devices for soldering parts, especially parts of jewelry, optical goods, etc. It provides means by which two small parts may be held rigidly, while the soldering is conducted. It provides a small pad of heat insulating material, which may be held in the hand while parts to be soldered may be securely held upon the pad by devices which may be easily manipulated to release or retain the parts to be mended. METHOD OF DISINFECTING BOOKS.—I. H; Hood, 113 Poplar St., Greenville, Miss. This method consists in spreading or opening the leaves of the book by a blast or current of air, and in"simultaneously delivering to the spread or opened leaves a disinfecting substance by the same current of air. The books may, however, be treated in the same manner, separately or in lots, by passing the blast backward and forward over the books, and by reciprocating the books through the blast or current of air. FEED TROUGH.—W. RANDALL, Los Angeles, Cal. The object in this instance is to provide a simple and inexpensive trough wherein but a small amount of food is exposed at once, and wherein as the exposed food is removed the supply is renewed. A constant supply of food is obtained. Four kinds may be fed at once. FENCE POST.--. E. Hussen, 526 Hoffman St., Hammond, Ind. The intention here is to provide a means, cheap in construction and of readily separable parts, whereby the post is strengthened at the point where the greatest amount of wear and tear occurs, whereby a neat finished construction is obtained, and whereby a positive connection is made between the wires and the post. TOBACCO SMOKING PIPE.—Samuel E. Creasey, Alfred, Maine. This invention provides a stem for a pipe pivotally connected to the bowl thereof to permit the swinging of the bowl to a position parallel with the stem ; provides in the pipe a bifurcated extension for the stem to form a yoke for the bowl; and provides an automatic cover for the bowl operative when the same is disposed in housed position. The invention forms a double armed stem section having in one or both of the arms the necessary smoke channel, which unite to form a single channel for the mouth piece, and in pivotally connecting the arms and bowl. It provides a convexed cover guidably mounted in structure of arms and springs actuated to normally extend into the path of the pipe bowl when swung to housed position. The illustration presents a side view. COLLAPSIBLE CONTAINER.—T. F. TAN-sey, 447 W. 14th St., New York, N. Y. This invention pertains to a container of a type adapted to contain cigarettes or the like. It can be made from less material and with less trouble than those now on the market. The container can be collapsed as the articles are used, so that a bulky package need not be carried about when the container has therein only one or two of the articles. MINIATURE GREENHOUSE.—F. W. Schwarz, 492 S. 3rd St., Columbus, Ohio. This device can be made in any size required and put into use in any garden or field. The parts thereof are hinged to one another so that the whole structure can be taken down and stored away so as to occupy a minimum amount of storage room. Hardware and Tools. PIPE WRENCH.—W. L. Bessolo, Box 522, Birmingham, Ala. The invention consists of a handle upon which is mounted a jaw member so that it has a limited degree of rocking movement. With this jaw member is pivotally connected a jointed member exteriorly toothed to interlock with a spring-actuated pawl also pivotally mounted on the shank member adjacent the rocking jaw member. When the last is moved in one direction the co-operating jaws are made to tightly grip the pipe interposed between them through means of the pawl, while when the rocking member is moved in opposite direction the space between the jaws allows the wrench to be turned on the pipe to get a new hold. MARKING TOOL.—J. A. Wickes, 54 Broadway, East Somerville, Mass. This invention provides a tool with marking faces having corresponding oppositely extended distinguishing features ; provides in a marking tool a plurality of hammer heads bearing distinguishing marks identifying the character being printed ; and provides for a tool for accurately and quickly distinguishing the correct position of the character imprinted. SHEAR GUIDE.—T. H. Sumner, 1631 Washington St., San Francisco, Cal. The object here is to construct a device whereby a blade is held in adjustment against a sharpening stone in such a manner as to allow of a free swinging movement of the edge of the blade across the sharpening stone. The inclination of the blade on the stone may be varied at will, and held at its adjusted position. Means are provided whereby the stone will always be kept in contact with the edge of the blade. Machines and Mechanical Devices. PULLEY AND BEARING TIIEREMOR.—M. H. Avery, Dover, N. H. This invention provides oiling devices for pulleys arranged for continuous circulation of oil from the center to the end of the bearing and return ; provides a construction for pulleys whereby is avoided dropping of oil from the pulley or bearing therefor ; and provides an oil distributing and lubricating bearing for a loose pulley. SUGAR BOWL.—J. Matas, Paterson, N. J. The purpose here is to provide a bowl designed for use in restaurants, hotels and other places where sugar is placed at the disposal of patrons; and having mechanism inside the same to enable the sugar to be readily and easily discharged from the bowl into a glass or other receptacle without necessitating the use of spoons. FLYING MACHINE PARACHUTE.--. W. Dolson, New York, N. Y. It is one of the objects of this invention to provide a parachute which will correspond to a lifeboat on a water vessel, and enable the aviator to detach himself safely from the aeroplane in case of accident to the latter. The parachute may be extended and let out any distance from the aeroplane, so as to aid in supporting the same, if necessary, and to act as an air anchor. COPING MACHINE.--. G. Benster and H. L. Benster, Moline, Ill. This invention has reference to cutting and punching sheets and bars, and its object is the provision of a new and improved coping machine more especially designed for shaping the ends of 1-beams, channel beams and other beams used in structural steel work, to insure close fitting of adjacent members at an angle of 90 degrees or less, as the case may be. FLYING MACHINE.—M. G. Adams, Parsons, Kan. This invention more particularly relates to a machine in which a steering surface, such as a rudder which is manually or otherwise operable, is controlled by a further surface which is free to move under the influence of air pressure thereagainst. The stability of flight of the machine is automatically controlled. Mr. Adams has invented another flying machine, in which is provided a steering surface or rudder ; and a controlling surface operatively connected with the steering surface and arranged to move bodily under the influence of air pressure thei'eagainst, and in which machine stability of. flight is controlled automatically. AEROPLANE.—Peter Zampol and Charles Zampol, New York, N. Y. Address Peter Zampol, 358 Cortlandt St., Belleville, N. J. This invention relates to aeroplanes, and an object is to provide supporting planes of such con-1 struction that they tend to maintain the j equilibrium of the machine as a whole. A fur- AEROPLANE. ther object is to provide supporting planes and side planes so disposed toward one another that not only is the equilibrium maintained but each serves* as a lifting or resistance element. Means are provided for protecting the ends of the supporting planes in case they should dip downwardly and come in contact with an obstacle in its path. The engraving shows a plan view. Prime Movers and Their Accessories. STARTING DEVICE FOR INTERNAL COMBUSTION ENGINES.—R. O. Le Baron, Masonic Temple, Portsmouth, Ohio. The object here is to provide means which may be used at will to connect an acetylene gas tank with the intake of the engine, so that the gas will mix with the explosive mixture and flow into the engine cylinder, which with a proper spark mechanism, will insure an explosion in the engine cylinder on the first, or in any case on the second, rotation of the engine shaft. MEANS FOR COOLING INTERNAL COMBUSTION ENGINES.—R. F. E. Okrassa, Antigua, Guatemala. In the present patent the object of the invention is the provision of a new and an improved means for cooling internal combustion engines, in a very simple and economical manner, and for this particular purpose use is made of moistened air moved in contact with the cylinder of the engine. Railways and Tlieir Accessories. RAIL .TOINT.—F. C. Botwrigiit, Philadelphia, Pa. This invention has reference more particularly to a rail joint which comprises a base having rail-engaging means, a chair mov-ably mounted upon the base and adapted to support the rail ends, means for causing the relative lateral movement of the base and the chair to secure the rail ends in position, and means for holding the rail ends. METALLIC TIE AND RAIL FASTENING DEVICE.—Joel F. Robinson, Central, S. C. This device eliminates the use of spikes, which split the tie, work loose, and otherwise destroy its life and causing many wrecks. The rail attachment is as well adapted to the wood tie as to the metallic one. It is made on a sheet iron or metal plate covering the end of the wooden tie, thereby extending the life and usefulness of a worn out tie and giving safety against spreading rails. The tie is automatically attached to the rail by an eliptic locking device, which holds the rail immovably, guarantees an exact gage of track \ and releasable only by the use of a wrench. The locking device is underneath the rail and inaccessible to train wreckers. It is not liable to be disturbed by any cause until a wrench is used. The form of tie is especially adapted to elevated service and on ballast roadbeds. The invention provides for insula-1 tion, and the engraving shows a top plan view. CAR TRUCK.—C. A. Lincoln, Wayne, Maine. The object here is to provide trucks for rail-\ road cars, constructed and arranged to dispose the axles of the wheels in a radial position upon the curved sections of the track in order to eliminate friction at these curves. A further object is to so arrange the trucks that any obstruction upon the track would not tend to •cause the wheels to leave the roadbed. DOOR FOR GRAIN CARS.—J. W. Wheeler, Palmyra, Neb. This invention relates to a door for grain cars, coal cars and the like. One object of the improvement is to provide a door which can be rigidly and securely fastened to the framework when in use. and may readily be swung out of the way when not in use, and further provides means for attaching the door to the framework on the car in both of these positions. WATER-GAGE.—J. A. Cooper, Jersey City, and W. R. Van Buskirk, Paterson, N. J. This invention provides a water-gage for determining the level in boilers especially on locomotives. The gage is strong and durable, and Is not liable to blow out. and even if it should blow out, the fragments of glass would be caught by a protector, preventing them from flying and injuring the person or eyes of the engineer. DOOR HANGER FOR CAR DOORS.—J. T. Grimshaw and L. R. Wellington, Rialto, Cal. An object in this instance is to provide a hanger which will permit the car door to be easily opened and closed and which will render the binding of the door impossible. A further object is to provide a device having a novel form of adjustment for 'the easy 'opening and closing of the door, together with means for preventing wear of the attachments. Pertaining to Recreation. SWING.—G. D. Tucker, Meridian, Miss. An object of this invention is to provide a support for a swing rot.atably supported on suitable rollers with means for driving one or more of said rollers by the swinging action of the swing, so that the device as a whole will move over the ground, and if desired above a common pivotal point. GAME APPARATUS.—J. E. YOST, care Yost Yeast Co., Arkansas City, Kan. An object of this invention is the provision of a new and improved game apparatus for playing a game of checkers on a map by the use of traffic routes or lines to move on, the towns along the routes as points to move to, and towns at the end of the map as “king row.” The game is highly interesting and educates in geography. Pertaining to Vehicles. PNEUMATIC WHEEL.—S. P. Cox, Bayport. N. Y. This inventor provides an improved construction of wheel, in which the tire is made up of separate units, each carrying its own pneumatic cushion, and its individual foot (or feet) associated with the cushion, the various units being removable at will and consequently interchangeable. BRAKE LOCK.—W. S. Bristol, Anthony, Kan. To accomplish the purposes of this invention use is made of a brake lever for connection with a brake shoe, a locking rod mounted on the brake lever, a locking lever adapted to be engaged by the locking rod to. lock the brake lever relatively to the locking lever and means for limiting the movement of the locking lever. VEHICLE WHEEL.--. C. Thoen, Burke, Idaho. The aim in this case is to provide a novel construction of spring wheel which will have sufficient resilience to permit its practical operation on automobiles and the like without pneumatic tires. An important feature of the invention is the coiled portions of the spokes which give greater resiliency to the spokes and thus improve the action of the wheel. GEARING.—Howard G. Carr, 910 E. Main St., Hoopeston, 111. This invention is shown in the enlarged plan view of the chassis of a motor vehicle, exhibiting the engine for driving the vehicle, and in cross section, the gearing connecting the engine and the driving axle. The object is to provide a motor vehicle in which the engine is mounted adjacent to the driving axle and is operatively connected there- with by means of efficient and compact, variable speed gearing, which permits the vehicle to be driven at different speeds and in different directions, which dispenses with a shaft or chains for operatively connecting the engine shaft and driving axle, and in which the mechanisu is so arranged that it can be easily assembled and taken' apart and is accessible , without difficulty for repair or other reasons. TACHOMETER.—Max Hoeft, Berlin, Germany. (Peterson&Schulz, agents.) The engraving herewith shows front elevation of entire apparatus after removing the front plate of clockwork and the front end disk of the paper roll and showing the casing in section. 'The actual printing motion, for example the pressing of the type against the paper on which, the record is to be made, is not carried out by a clockwork spring or weight adapted to be wound up periodically, but either by coupling the printing mechanism with a shaft, or some other part, driven by the motor or by force of the person moving some operative part of the vehicle or motor. Printing is thus effected with the greatest certainty and the apparatus can not fail owing to insufficient force being available as can occur when a clockwork spring is used. The complicated mechanism heretofore necessary in order to automatically wind up a clockwork spring is now avoided. DOOR SIGNAL.—L. L. Bories, San Francisco, Cal. ''he object of the present invention is mainly to provide an automatically-acting indicator device actuated by the closing of the door. This device is particularly adapted for use on automobiles and other vehicles, and at all times to see that the door is opened or closed without turning his head. SLEIGHING ATTACHMENT FOR CARRIAGES.—J. P. McCready, Berlin, N. II. This attachment is for use for baby carriages, go-carts and vehicles in general, and it comprises a plurality of runners which can be suitably supported beneath the body of the vehicle and adjustably attached thereto, so that they can , be raised clear of the ground when they are not needed for use, or lowered when desired I to support the weight o£ the vehicle thereon. I Designs. DESIGN FOR A TEAPOT. C OFF EE POT, ; OR SIMILAR ARTICLE.—M. Weintraub, ! New York, N. Y. This ornamental design for a teapot, coffee pot or similar article represents a teapot of harmonious proportions and highly elaborate ornamentation. Scroll work profusely covers the entire article except the numerous scenes of pastoral and social life pictured around the lower part. 1 DESIGN FOR A SWIMMING BAG.—A. P. Rindskopf, New York, N. Y. This view of a swimming bag of ornamental design, shows an article of square form at the lower half. Half way up the sides, the bag is shaped with two graceful incisions, the top one on each siLe forming the bottom of a wing-like form, two of which constitute the top of the bag. Note.—Copies of any of these patents wil be furnished by the Scientific American foi ten cents each. Please state the name of thl! patentee, title of the invention, and date at this paper.