US3043352A - Two motor fluid-pressure log turner and loader - Google Patents

Description

y 10, 1962 J. J. REIMER 3,043,352

Two MOTOR FLUID-PRESSURE LOG TURNER AND LOADER Filed Sept. 16, 1960 2 Sheets-Sheet 1 J. J. RElMER 3,043,352

TWO MOTOR FLUID-PRESSURE LOG TURNER AND LOADER 2 Sheets-Sheet 2 July 10, 1962 Filed Sept. 16, 1960 o f 1.1 E

United States Patent ()filice 3,043,352 Patented July 10, 1962 3,043,352 TWO MOTOR FLUID-PRESSURE LOG TURNER AND LOADER Jacob Jay Reimer, Box 486, Quesnel, British Columbia, Canada Filed Sept. 16, 1960, Ser. No. 56,381 3 Claims. (Cl. 143-99) This invention relates to log turning and loading machines for use in sawmills.

In the art to which the invention relates, in sawmill operation the logs have to be turned and placed on the sawmill carriage and there held as desire-d until the engaging dogs can be set. Machines for this purpose are usually cumbersome and require a lot of room for their installation, which in most cases is diflicult to provide, and the cost of these is high.

The present invention is designed to overcome these difficulties by providing a low cost log handling device that is of simple, compact construction with few moving parts, and that may be mounted on the mill floor with no room under the floor required, as in most machines of this character. The device is fast in operation and can be used with liquid or air pressure hydraulics that can be operated from the mill arbor as a source of power, or any suitable shaft.

In the drawings, wherein is shown a preferred embodiment of the invention,

FIG. 1 is a side view of the device at rest, shown as broken away in part.

FIG. 2 is a side view of the device, illustrated with the nigger bar raised into log engaging and handling position, shown in part broken away.

FIG. 3 shows a side view of the device in which the yoke has been moved to raise the log engaging nigger bar, illustrated with the latter broken away in part.

FIG. 4 shows a rear end view of the base and yoke pushing hydraulic, with the latter shown broken away.

FIG. 5 shows an upper end view of the nigger bar and its connection to the yoke, illustrated as taken on a line 55 of FIGURE 3, and with the yoke shown as broken away.

FIG. 6 shows an inverted plan view, taken on a line 6-6 of FIGURE 2, showing a part of the yoke and its hydraulic and mounting connections, shown with the latter broken away.

FIG. 7 is a side view of the lower end-of the nigger bar, shown broken away.

FIG. 8 is a side view of a fragment of the base, and including the guard.

FIG. 9 is a top plan view of the base and mountings for the hydraulic connections, and the yoke and nigger bar attaching elements.

FIG. 10 is a top plan view of the yoke and its pivot pins.

Having reference to the drawings, the base for the log loader and turner is formed of angle plates 1 and 2 (FIG. 9) attached together spaced part by tubular spacers 3 fixed thereto, as by welding, with the wings of the angle plates horizontally and vertically disposed, and the horizontal wings having openings 4 by which they may be bolted to the floor.

On the base is mounted a yoke 5 formed of spaced side bars 6 and 7 and top connecting bar 8 inserted therebetween and fixed to the side bars, asby welding, or formed integral therewith.

' Rearwardly the yoke is supported by a bar 9 pivoted on a pin 10 carried by the yoke side bars. The lower end of the bar 9 terminates in a tubular element 11 (FIG. 9) engaging a pin 12 carried by the vertical wings of the base plates 1 and 2.

On the pin 10 is attached a U coupling 13 (#FIG. 6), on a piston rod 14 of a cylinder 16 of a hydraulic element. This cylinder has a rod 17 attached to its lower end and to which rod is attached a tubular element 13 mounted on a pin 19 carried by the vertical wings of the base.

Intermediately the yoke is engaged by a tubular coupling 20 on a pin 21 carried by the yoke side bars 6 and 7 (FIG. 6), and to which coupling 20 attaches a piston rod 22 of a hydraulic element that includes a cylinder 23 (FIG. 2) to which a rod 24 attaches at its lower end and terminates in a U coupling 25 (FIG. 9) engaging a pin 26 caried by the vertical wings of the angle plates 1 and 2.

Forwardly on the base is mounted a nigger bar 27 endwise movable on a slide bar 28, the nigger bar having a rear plate 29 (FIG. 5) constraining the slide bar for movement therein. This slide bar has attached to its lower end a tubular element 30 (FIG. 9) mounted on a pin 31 carried by the vertical wings of the base angle plates.

The nigger bar 27 has integral therewith on the rear side spaced lugs 32 engaging a pin 33 carried by the forward end of the yoke side plates. On the rear face of the nigger bar are attached, as by welding, log engaging spades 34 that incline slightly upward.

The base may include two guard plates 35 (FIG. 8) one to each side attached to the vertical wings of the base angle plates and additionally secured by pins 36, these guard plates serving to protect the rear cylinder from logs sliding off the skidway.

The pins 10, 12, 19, 21, 26, 31 and 33 are all similarly mounted to turn, each having grease fittings, as indicated at 37 (FIG. 9).

In the use of the device, upward movement of the yoke 5 pivoting on the bar 9 moves the nigger bar to a vertical position or more if it has no resistance ahead against a log. The nigger bar then moves upward and the spades 34 engaging the log load it on to the carriage. The hydraulic element 16 may be used for pushing forward or backward on the yoke 5 at any position of the nigger bar.

What I claim and wish to secure by Letters Patent is:

1. In a log turner and loader a base, a yoke, means mounting the yoke rearwardly on a swingable link to the base to move forwardly and backward above said base, a nigger bar, the nigger bar being vertically slidable on an upstanding slide bar on the base to swing forwardly and backward above said base, means pivotally engaging the yoke forwardly to the nigger bar, and hydraulic means on the base intermediately engaging the yoke for raising and lowering the yoke and nigger bar.

2. A log turner and loader as set out in claim 1 and including spades on the nigger bar for engaging the log, in which said spades are attached on the lower portion of the nigger bar, and said yoke engages the lower portion a nigger bar vertically slidable on the forward upstanding slide bar, a yoke, means pivotally attaching the yoke to the upper portion of the rearward bar and the lower portion of the nigger bar, spades on the lower portion of the nigger bar, hydraulic means on the base intermediately pivotally engaged with the yoke for raising and lowering said yoke pivoted on the rearward upstanding bar to move said nigger bar up and down on the slide bar, and hydraulic means on the base rearwardly of and References Cited in the file of this patent UNITED STATES PATENTS Wilkin May 5, 1896 Thomas Mar. 30, 1897 Ross Feb. 19, 1.95?

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