US326280A - Log-turner - Google Patents

Description

(No Model.)

- J. IBVERBD.

LOG TURNER.

Patented Sept.

INVENTOR:

ATTORNEYS.

A Vla/ WITNESSES :Rs co, worm UNITED STATES PATENT OFFICE- JOSHUA EVERED, OF DULUTH, MINNESOTA.

LOG-TURNER.

SPECIFICATION forming part of Letters Patent No. 326,280, dated September 15, 1885. Application tiled June 9, 1885. (No model.)

with a pivot-ed cylinder divided into two compartments, of a piston in each compartment, a valve in the journal, and a toothed log-rolling har connected with the upper piston.

llarged sectional planview showing the construction of the valve, and Fig. 4 is a detail view of a part of the steam-pipe connected with the upper'compartment.

rlhe invention also consists in parts and details and combinations of the same, -as will be fully set fort-h hereinafter.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure lis a longitudinal sectional elevation of my improved logroller. Fig. 2 is a longitudinal sectional view of the lower part of the same in a different position'. Fig. 3 is an en- The steam-cylinder A is divided by the partition B, near its lower end, into two compartments, A and A2, containing the pistons C C2, provided with the piston-rods D" D2, projecting through the stuffing-boxes E Ez on the top and bottom of the cylinder A, respectively. The outer end of the piston-rod 1) is connected with the sliding bar F, having prongs or studs G, and having one end guided by a track, G', on the cylinder. The cylinder A is provided near its bottom with a lateral projection, H, on the end of which ahollow cylindrical trunnion is formed, the chamber of which is the valve-chamber J, and contains the cylindrical valve XV, which is mounted in th chamber J in such a manner that the trunnion can turn on said valve, the valve thus forminga pivot for the cylinder A. The valve is also arranged to slide in the chamber J. The ends of the valve are mounted in standards on a base, L, on which base a longitudi-t the valve through a pipe, X, passing into theA end of the valve, the pipe X bei'ngsurrounded bya packing secured in the stuffing-box on the. end of the valve for the purpose of pre venting leakage, as the valve is to slide on the tube X.

The channel T (shown in dotted lines in Fig. 3) leads from the chamberJ into the lower part of the chamber A of the cylinder' The tube R extends from the chamber J to the upper chamber, A', in the cylinder. c (shown in dotted lines in Fig-3) is 4an ex haust-port in'the valve XV, which exhaust.- port is to register with the tube R.

g are the feed-ports in the valve W for the 'lower chamber, A2, of the cylinder; and d and d are the passages leading from the'valve'- chamber"-I J to the top and bottom, respectively, of.lthe bottom compartment, A2, ofthe cylinder A, and the ports d and d are to register with the port g in the valve.

f is an annular groove to register with the tube R for the upper chamber of the cylinder.

is the exhaust-port in the valve W, and conducts the steam into the tubular end W2 of the valve.

h is an exhaust-passage connecting the two ends of chamber J.

k is a brace for holding the tube X.

m is a crank for rocking the valve.

n is a connecting-rod for sliding the valve.

p 1i are valves in the bend R2 of the pipe R. The steam feeds through one of said valves and exhausts through the other.`

S is a checkvalve in the pipe S, connected with the pipe R, which pipe S leads to the top of its bottoni compartment, A2, of the cylinder.

tis a cushion-valve in the bottom of the compartment A, andis connected by cushionports with the main port T.

The operation is as follows: As shown'iu IOO Fig. 3, the valve W is so located in its chainber J that the ports g in the said valve'can register with the channels d and d', leading to the lower compartiment, A2,.of the cylinder, so that by rocking the valve in vone direction or the otherthe steam will be conducted into the uppcrchanncl, d, or thelower channel, d', and only the piston C2 in the lower compartment, A2, will be acted upon. By then shifting the valve W in its chamber J in the direction of the arrow as the port b in the valve registers with the end of thc channel T, leadinginto the upper compartment, A', and at the same time the end of the pipe R is registered with the' exhaust-channel c in the valve. If the valve is again rocked, thqsteam willonly beadmitted into the upper or lower part of the upper chamber, A', in the cylinder, and not in the lower chamber, and thus the piston in the upper chamber only is moved. By admitting steam on theltop'of the lower piston, C?, in

the lowercompartment, A", the Vsaid piston is forced out and the log-rolier is inclined more or less, as may be desired. Then the valve is shifted in the direction of its length, and steam is admitted into the lower part of the upper compartment, A', for the purpose of forcing lthe upper piston, C', upward, whereby the toothed bar F is moved np behind the log-that is,

steam is admitted into the upper or lower part --of the lower compartment, A, and the cylinder. A swung forward or back into its required position, and the steam is then admitted into the upper compartment to move the toothed bar` up or down, as may be desired. By means of one valve I am thusy enabled to control theV movements of the bar F and the inclination of the cylinder, and can'move the bar up and down with the cylinder vertical or at the desired inclination. When the steam passes up through the pipe R, it raises the valve p', as indicated by the arrows, and when it passes down through the pipe R it raises the valve p.

Having thus described vmy invention, I claim as new and desire to secure by Letters Patent 1. The combination, with a steamecylinder divided into two compartments, of a piston in each compartment, a hollow projection on the cylinder, forming a valvechamber, a valve in said chamber operating with both cylinders, standards on which the valve in the cylinder is mounted, which valve forms a pivot on which the cylinder can rock, and

a1og-rolling bar connected with one pistonrod, substantially as herein shown and dcscribed.

2. The combination, with a steam-cylinder Il. The combination, with a steam-cylinder divided into two compartments, of a piston in cach compartment, a hollow projection on the cylinder, forming a valve.- chamber, a valve mounted on standards to rock ani''eci procate on its longitudinal axis, which valve is in the above-mentioned chamber and forms a pivot for the cylinder, the said valve bcing provided with two sets of ports, one set for conductingthe steam into the upper part of the cylinder and the/other for conductin the steam into the lower compartment, an a log rolling beam connected with one of the pistons, substantially as herein shown and described.

4. The combination, with a pivoted steamcylinder divided into two compartments, of a piston in each compartment and a log-rolling 8 bar connected with one of the pistons, the other piston serving to adjust the-an le of the cylinder and rolling-bar, and suitable valves and ports for said conipartments,substantially as herein shown and described.

5. The combination, with a steam-cylinder divided into two compartments by a parti tion, of apiston in each compartmenathe piston-rods of which pistons project from the opposite ends of the cylinder, and a logrolling bar connected with one of the pistonrods, and a grooved or slotted bearing-plate in which the outer endv of the other piston is guided, and suitable valves and ports for said chambers, substantially as herein shown and described.

6. The combination, with the pivoted cylinder A, divided in-to the compartments A and A2 by the transverse partition B, of the pistons C C, the piston rods D D, tho 105 toothed bar F, connected with the pistonrod D, and the guide M, in which a. roller works pivoted on the lower end of piston-rod D, w-,hereby the position of the cylinder is` governed, substantially as herein shown and r described.

7. The combination, with the base L and the standard K, of the cylinder A, mounted to swing on the standard and divided into two compartments, the pistonrods D D, i the pistons ",C C2 in said compartments, the log-rolling rod F, operated by t-he piston C', the head P onl the outer end of piston D, the roller O on said head and bearing on the base, and suitable valves and ports for the I cylinder, substantially as set forth.

S. In a log-roller, the combination, with a cylinder pivoted to swing in the vertical plane, of a log-actuating bar connected with a piston-rod projecting from the top of the I cylinder and apistonrod for swinging tl cylinder projecting from the lower end of dig same, substantially as herein shown and dcscribed.

JOSHUA EVERED.

Witnesses:

FRANK BURKE, Jr., DANL. E. CASH.

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