US84408A - Improved screw-press - Google Patents

Description

@timidi 5m JONATHAN S. BUELL, BUFFALO, AND WILLARD B. 'BUELLOF POMPEY, NEW YORK.

Letters Patent No. 84,408, flctcdNocembfr 24, 1868.

IMPROVED SCREW-PRESS.

The Schedule referred to in these Letters vPatent and making part of the same.

To all wlwm it may concern:

Be it known that we, J QNATHAN S. BUELL, of Bufh cation.

The natureof our invention consistsl First, in operating the pressure-screw of a cider,

hay, or other press, by means of a ratchet-wheel and ratchet-lever, attached to said screw, in combination with a driving-crank and pitman, so that the continuous circular motion of the crank will impart a vibrar tory motion to the lever, and an intermittent rotary motion to the screw, thereby causing said screw to perform its function of moving the follower of such. press or presses.

Second, in supporting the overhanging end ofthe ratchet-lever by means of a diagonal brace, connecting tothe tail of the press-screw by a journLl-beaiing, which will not interfere with the free revolution of the screw, so thatthe screw may work up and down through its nut, without the brace coming in conflict therewith.

Third, in a special construction of the spring-pawl, by which the engagement of the ratchet-lever and ratchetwheel is eiiected.

In the accompanying drawings- Figure I is a side elevation of a press, with our impnovements applied thereto;

l Figure H is a plan or" same;

Figure III is a plan of ratchet-lever, ratchet-wheel, and spring-pawl, on an .enlarged scale; and

Figure IV is a longitudinal section of same.

Like letters refer to like parts in each of the figures.

.A A represent the side posts, and B B', lthe bottom and top cross-heads of a press-frame, of common construction, the side posts being longitudinally grooved,l to receive the follower C, and guide the same in its upand-down-movement.

D represents the press-screw, passing through a nut connected to the upper cross-head B, the lower end of said screw bearing upon the centre of the follower, or upon an iron step attached thereto, and so connected that, while turning freely, it may move the follower either up or down. 1

E represents the ratchet-wheel, which is irmly keyed to the head of the screw, just above the follower', and

F is the ratchet-lever, hinged upon the screw-head, just below the ratchet-wheel.

-In the present instance this lever is made partly. of iron, and partly of wood, the wooden portion, F, being inserted .in a socket, F2, formed at the end of the iron portion. This construction is adopted as being lighter;

r and less costly than an all iron one.

Gr is the ratchet-pawl, placed upon the upper side of the lever F, and engaging with the teeth of the ratchet-wheel.

The joint-bolt or pin upon which the pawl works is shown at gl. lhe pawl is made double, that is to say, it has two points, g'2 and g3, equidistant from a line passing through the centre of the ratchet and said joint-pin, either of which points may be made to engage the teeth of the ratchet-wheel.

The location of the joint-pin, with reference to the points g2 and g3, is such that lines tangent to the ratchetwheel at the said points will pass inside of said jointpin, so that the secure hold of either of said points,

' when engaged withthe ratchet-teeth, is insured.

The pawl' has an arm, h, extending. on the opposite side ofthe joint-pin from the points .g2 and g3, the end of which arm has a triangular point, h.

A spring-pin, fi, with a triangular point, is inserted in a socket; caston the upper side ofthe ratchet-lever, as shown at i', said pin being in line with the joint-'pin q and the centre of the ratchet-wheel, so that, when one side `of its triangular point is in contact with the opposite side of the triangular point of the pawl-arm It, it will throw one of the pawl-points into engagement with the ratchet-teeth, and when the other side of its triangular point is in contact with the OPPOSte angular side of the pawl-arm, it will throw the other pawl-point intoengagement with the ratchetft'eeth.'

A vibratory motion being imparted to the ratchetlever, it will be communicated to the-screw by the engagement of the pawl with the ratchet-wheel, and the direction in which the screw will turn maybe governed at pleasure by the use of one or the other of the pawlpoints.

When the triangular points of both pawl-arm and Vnot be imparted to -the screw;

A handle, J, is projected om the pawl, by which the pawl may be readily set in either of its three positions.

K representsthe crank-shaft, to which the motivepower, either hand, steam, horse, or other power, is applied.

. It is supported in proper journal-bearings in standards K', and parallel with the ratchet-lever, when the same is at the middle of its Vibration.

L represents the pitman, connecting, the crank L with the end of the ratchet-lever, so that the revolution of the crank will communicate a vibratgry motion to said lever.

This pitman should be of sufficient length to prevent its action being materially affected, by reason of the ratchet-lever moving up and down with the screw.

The diagonal brace M leads from the end of the ratchet-lever to the top of the press-screw, and connects therewith by a journal-bearing, which allows it to vibrate freely while it sustains its weight,

In presses employing two or more screws, a ratchet wheel, pawl, and lever should be provided for each screw, When, by the use of a connecting-rod between the ends of said levers, they may be operated,- and motion imparted to all the screws simultaneously.

Our invention Will greatly'. facilitate the operation of screw-presses of all kinds, and lessen the 1abor\ re= quired. It is specially applicable to cider and W1nemills, and will meet a long-felt want for such purposes. Having thus described our invention,

What We claim, and desire to secure by Letters Pa ent, isfl. VThe ratchet-wheel, lever, pitrnan, and crank, in combination with the press-screw, When arranged and

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