US1966518A - Wood treating tool - Google Patents

Description

July 17,1934. R. R. POUX WOOD TREATING TOOL Filed Jan. 22, 1934 WITNESS Patented July 17, 1934 UNITED STATES PATENT OFFICE 1,966,518 Q woon TREATING TOOL Raphael Rogers Poux, Orr-ville, Ohio Application January 22, 1934, Serial No. 707,739 6 Claims. :(o1.99- 12) This invention relates to wood-treating, and

more particularly to a tool for impregnating with preservatives the walls of holes through wooden articles such as railroad ties. Railroad ties, for example,

are often impregnated with a wood-preservative solution, such as creosote, at a wood+treating plant before they are distributed for use. It is also a common thing to first bore holes in the tion of spikes, particularly walls of these tie holes being ties for the recepscrew spikes, the impregnated with preservative when the ties are treated. However, if these holes are bored after the ties have left the wood-treating plant holes have to be bored to line or if additional up with holes in a of the ties are impregnated, and are, therefore,

subject to decay. This is also of wooden articles, such as telephone poles and the like, when holes are bored have been impregnated with a solution.

Further objects are true of other types inthem after they wood-preservative It is an object of this invention to provide a preservatives the walls cles, such asrailto provide a tool of this kind which can be used efiiciently with preservatives under high pressure, which is simple in construction and easy to operate, which is light in weight, and which is adapted to be quickly and easily put in operating position and removed therefrom. A still fu rther object is to provide a wood-treatingtool which can be used with railroad ties to which rails are spiked, without removing the ties from roadbed.

In accordance with this inv their position on the ention, a nozzle is provided for insertion in a hole througha wooden article. '-A pair of spaced sealing members is carried'by the nozzle in such position, as to be disposed in theopposite ends of the hole with whose wall they are forcedin to'sealing engagement by =means acting in cooperation with the nozzle. The nozzle: is provided with a passage for connecting the?v space, betweenv the two sealing members to an-out'side sourcev of wood-perservative solution by which the walls of the hole is impregnated.

' The preferred embodiment is illustrated in the accompanying drawing, of:

of the. invention which Fig. 1 is a vertical section through'the apparatusshown disposed in a hole bored through a wooden railroad tie; and-F1 g. 2 is a fragmentary view, similar to Fig. 1, of the lower portion of the apparatus with the lower sealing member gilsealing engagement with the wall of the tie In Fig. 1 of the drawing there is shown a fragmentary vertical section of a wooden railroad tie 1 on top of which rests a tie-contact member or head 2 having a vertical bore 3 therethrough axially aligned with a spike-receiving hole 4 bore throughthe tie. V

Slidably disposed in bore 3 of head 2 is an elongate member 6, shown in the form of a rod whose inward or'downward movement islimited by a shoulder 7, formed in bore 3, abutting against a shoulder 8 formed on the rod by en-, larging its upper end portion. This enlarged portion'also serves to strengthen'the exposed portion of the rod which extends above the tie contact member. The opposite end of rod 6 extends through tie hole-4.

In order to permit a wood-preservative solution, such as creosote, to be forced into the wall of hole 4 under high pressure so as to thoroughly impregnate it, means are provided for sealing the ends of thehole to prevent escape of the preservative while it is being applied. These means include a pair of sealing members or gaskets 9 and 11 throughwhich rod 6 slidably extends, and which are spaced apart preferably at such a distance as to be disposed in the opposite ends of the tie hole. The sealing members are made of resilient material such as rubber, and conform to the cross-sectional configuration of the hole. Gasket 9, at the inner or lower end of the rod, is held thereon by a nut 12 and a washer 13. "The V outer face of gasket 11, at the opposite end of the tie hole, bears against the lower face of head 2.

As will be seen in Fig. 1, there is normally a slight clearance between the gaskets and the wall of tie hole 4 to enable this wood-treating apparatus to be readily inserted into or removed from tie holes without binding. Consequently, before the gaskets can seal the ends of hole 1 they must be expanded into sealing engagement with its wall, .A convenient and'simple way of accomplishing] this is to compress the gaskets axially,- whereupon they expand radially as shown in Fig. 2. To this end, means is provided for moving rod 6 outward relativerto head 2 in order to exert pressure on gasket .9, in the direction of gasket 11. However, as means also is provided for spacing the two gaskets a predetermined fixed distance apart, this pressure can act only to compress, eachgasket axially, whereby theyare 110 6 with an axial bore 23 extending from its outer expanded radially and forced into engagement with the tie.

To permit rod 6 to be moved outward relative to the tie contact member, a lever 14 is fulcrumed on a pivot pin 16 which is journalled in a handle member 1'7 rigidly connected in any suitable manner to the tie contact member 2. The short arm of the lever is bifurcated to permit it to straddle rod 6 with forks 18 bearing against the lower surface of an outwardly extending flange 19 formed on the upper end of the rod. Preferably, the upper faces of forks 18 are convex, so the contact area between them and flange 19 remains substantially uniform as lever 14 is raised or lowered.

The two sealing gaskets are maintained a predetermined fixed distance apart by a rigid spacing member, a tube 21 loosely telescoped on rod 6 being suitable for this purpose. Washers 22 are interposed between the ends of the tube and the inner faces of the sealing gaskets to distribute pressure evenly over those faces when gasket 9 is moved in the direction of gasket 11.

This wood-treating apparatus is placed in operating position by inserting the gasket-carrying portion of rod 6 and its associated parts into tie hole i until head 2 engages tie 1, whereupon sealing gaskets 9 and 11 are found to be disposed in the opposite ends of hole 4. Lever 14 is then manually squeezed toward handle member 1''! to raise rod 6 and force nut 12 and washer 13 against lower gasket 9. The tendency of this gasket to rise with the rod is restricted by tube 21, Washers 22and upper gasket 11, all interposed between gasket 9 and head 2 which remains in contact with the tie. The result is that the pressure exerted through rod 6 acts to compress the yielding gaskets axially and expand them radially until their sides are in tight contact with the wall of the tie hole (Fig. 2).

The problem of introducing wood-preservative solution into the tie hole between its sealed ends is solved by providing the upper portion of rod end to a point between the sealing gaskets. The inner end of this bore is opened into hole 4 by means of an intersecting radial bore 24. A source of wood-preservative under pressure is connected with axial bore 28 by a flexible conduit 26 suitably 56 joined to the outer end of the rod, the flow of preservative being controlled by a valve (not shown) in the conduit.

When the valve is opened, wood-preservative is forced through rod bores 23 and 24 and into tie.

the tie hole, tube 21 being provided at intervals with openings 2'? through which the preservative passes to the wall of hole 4 where impregnation occurs, telescopically-disposed rod 6 and tube 21 functioning as a nozzle for the introduction of the preservative. When the treatment is over, the valve is closed and lever 14 is released, which allows the resilient. gaskets to resume their normal shapes and to be easily withdrawn from the tie does not have to be laid on its side or turned over to seal the lower end of the hole. A further advantage of this structure is that it is unitary, thereby eliminating the trouble of caring for and applying several loose parts.

According to the provisions of the patent statutes, I have explained the principle and mode of operation of my invention, and have illustrated and described what I now consider to represent its best embodiment. However, I desire to have it understood that, within the scope of the appended claims, the invention may be practiced otherwise than as specifically illustrated and described.

'1 claim:

1. A tool for impregnating walls of holes through wooden articles with preservative solutions,,comprising an elongate member for insertion in a hole, a pair of spaced sealing members carried by said elongate member, and means cooperating with said elongate member for forcing the sealing members into sealing engagement with the wall of the hole, said elongate member being provided with a passage for the flow of preservative solution to-the space between the sealing members.

2. A tool for use in-impregnating walls of holes through wooden articles with preservative solu-' tions, comprising an elongate member for insertionin a hole, a pair of spaced sealing mem-.

bers carried by said elongate member, and means cooperating with said elongate member for forcing the sealing members radially outward into sealing engagement with the wall of the hole,

through wooden articles with preservative solu-' tions, comprising an elongate member for insertion in a hole, a pair of spaced yielding gaskets carried by said elongate member and so positioned as to be disposed in the opposite'ends of said hole, and meanscooperating with said elongate member for compressing the sealing members axially to force them radially outward into-sealing engagement with the wall of the hole, said elongate member being provided with a passage for connecting said hole between the sealing members to a. source of high pressure preservative outside of said hole.

4., A tool for impregnating with a preservative solution thewalls of holes through wooden ,articles such as railway ties, comprising a head, a nozzle insertable in a'hole and including a pair of telescopically-disposed members, a pair of laterally expansible gaskets carried by said nozzle adjacent to its ends, and means on said head for moving said members axially with relation to each other to expand said gaskets into sealing engagement with the wall of a hole, the tool being provided with a passage for the flow of a preservative solution to the space between the gaskets." 5. A tool for impregnating with a preservative. solution the walls of holes through wooden arti'-- cles such as railway ties, comprising ahead provided with an opening therethrougna nozzle insertable in a hole and including a pair of telescopically-disposed members the inner of which projects through the opening in said head, a pair. of laterally expansible gaskets carried by said inner telescoping member at each end of the outer of said members, and means on said head for moving said inner member axially relative to said outer member to expand said gaskets into sealing engagement with the wall of the hole, the tool being provided with a passage for the flowof tion relative thereto and bearing against the adjoining gaskets, rigid means spacing the gaskets apart and movable longitudinally relative to the elongate member, and means for moving said elongate member outwardly whereby said gaskets are compressed axially and forced radially outward into sealing engagement with the wall of the hole, said elongated member being provided with a passage for connecting said hole between the sealing members to a source of high pressure preservative outside of the hole.

RAPHAEL ROGERS POUX.

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