�tttut Illl proved Press. Charles S. Swan, Tamaroa, Ill.-In this invention, the follower is arranged in a borizontal case, and worKed by the toggle-jointed bars and drums, as in other presses now made. A vertical beater case and beater compress the hay, etc� to a considerable extent before it is acted upon by the press, so as to increase the efficiency of the press; and to raise it, an extension of the shaft by which the drums are worked Is arr&nged above the sweep, with a drum on it carry ing

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... block at the periphery, to which a rope is attached. This block s capable of sliding freely around the drum, being connected to it oy lugs or projections, fitted in grooves in it, so arranged as to hold it on, while allowing it to slid@freely. This block is held, when the beater is to Ije raised, by a pawl and catch. The pawl is pivoted to the drum, so as to Swing around and allow the block to escape when it is released by the catch, and it is returned to and engaged with the catch by the spring. The catch is raised to release the pawl by preSSing under a stationary cam in the crosstree above. The shaft 18 mounted in a step or socket in the top of the sweep, so that it can De lifted out, and it is provided with a lever to lift it out and let it rest while the drums are kept in motion for working the follower. A yoke holds it out of gear. The lower portion of the beater case is provided with a removable front, and arranged on pivots so as to swing forward when the front is removed, and dump the hay into the hOTizontal case. Illl proved Tunneling Machine. Olney B. Dowd, New York city.-This machine is deSigned mainly for tunneling under the bed. of rivers, where the material Is. soft and liable to cave and crush in; and the invention consists of a lIyl indrical case, with a head at the front end, out of which projects at the center a revolving shaft carrying a cutting and scraping arm, which breaks and cuts down the earth, and forces it into the case through an opening at the bottom of the head. The shaft carrying the arm is hollow, and the arm is also hollow and suitably perfor ated to allow of softening the earth with water, by forcing the water out through the shaft. There is a pipe discharging through the head at the top for watering the earth in that way, to render it suf ficiently fi uid to be forced out through pipes. In the bottom of the case is an oblique opening, through which a large tube may be pro jected to sink a hole below the line of the tunnel by working through the tube to sink a boulder or otber solid object out of the case. The case is to be forced along as fast as tbe earth is removed in advance of it, and it is to be followed up by the wall of the tun nel, which is to be built along at the same time as the work pro gresses, keeping the rear open end packed with the wall of the tun nel, and so as to exclude water and mud or silt from settling into the ca!! e. There is a pipe for discbarging the silt, etc., by bydraulic pressure. Illl proved Tuning Pin Cor PlanoCortes. Julius M. Branig, New York city.-The object of this invention is to enable the tuning pins of a pianoforte or other instrument to be firmly secured in place in such a way that theymay be detached and again inserted without loosening them or injuring their screw threads. The invention consists in an open bushing, made of brass or other metal softer than the tuning pins, and a wedge, in combi nation with the plate and the tuning pins. The holes in th@ iron plate or frame of the pianoforte are made larger than the pins, and have the bushing inserted in them around the said pins. Tbe bush ing is made open at one Side, and of such a size that its edges will not quite meet around the pin. A wedge is driven into a notch in the plate at the outer side of the bushing. �he wedge forces the middle part of the bushing inward against the pin, so that the bush iDg may always bear against the pin in at least three points, so as to support it firmly. The soft metal bushing enables the pin to be put in and taken out without injuring its threads, and also beds it firmly in the plate.