US253361A

US253361A - Henry flad

Info

Publication number: US253361A
Authority: US
Publication date: 1882-02-07
Anticipated expiration: 1899-02-07

Description

Attest C13 (No Model.)

H. PLAD. APPARATUS FOR THE TREATMENT OF TIMBER FOR PRESERVING IT. No". 253,361. Patented Feb. 7,1882.

N. PETERS, PhnloLflhbgrApher. Wnshinglnn. n.c

UNITED STATES.

HENRY FLAD, or sr, LOUIS, rssonat.

APPARATUS FOR THE- TREATMENT OF TIMBER FOR PRESERVJNG IT.

SPECIFICATION forming part of Letters Patent No. 253,361, dated February '7, 1882.

Application filed May 4, 1881. (No model) To all whom it may concern:-

Be it known that I, HENRY FLAD, of the city of St. Louis,in the State of Missouri, have invented a certain new and useful Improvement in Apparatus for the Treatment of Timber for the Preservation or Seasoning of the Same, of which the following is a ful clear, and exact description, reference being bad to the accompanying drawings, making partof this specification.

My improvement relates to a metal hoop or flat ring that is used in the formation of a suction or pressure chamber at the end of a log under treatment; and the improvement'consists of a flat ring or hoop made of thin steel that may be bent to conform to the periphery of the end of the log. The hoop has upon its side a number of bosses to prevent the edges of the ring or hoop entering the wood above a certain distance. It has also a nozzle for the connection of a pipe or hose.

In the drawings, Figure 1 shows the hoop and two logs in side View, the tank and skids being in section. The sinker-bars are also in section. Fig. 2 shows the hoop and contiguous part of the log in section, the rest of the log in side view, and the cap part in section. Fig. 3 is in the main a side view of the hoop, with the coupling and contiguous part of the hoop in section. This figure is on a larger scalar The flat hoop or ring consists of a short cylinder, A, of thin flexible sheet metal, (preferably steel or gun-metal,) whose edges on ter the log B at the end. The hoop is inserted-between two logs, as in Fig. 1, or between a log and a cap. This is illustrated in Fig. 2, wherethe cap consists of a block, 0, sawed from the end of the log. To carry on the process under the most favorable circumstances the pores at the end of the log must be open, and where the end has become seasoned or checked, or where it is not flat, it should be sawed off to give a fresh, fiat, and unchecked surface for the application of the hoop A. The disk or block 0, or another log B may then be fitted on the other edge of the hoop, and both edges of the hoop be made to enter the wood by pressure or blows upon the block or log, so as to make an airtight joint between the hoop and the faces of the wood. The hoop is very thin and flexible, so that it may be made to accommodate itself to the periphery of the face of the log, and may be made to enter the same near to'the margin all around, whatever the outline of the margin may be. The side of the hoop has a number of bosses, D,-not reaching to either edge, and which serve to limit. the distance which the edges of the hoop enter the timber.

.E is a nozzle in communication with the chamber F within the hoop, and fitted in any suitable manner for connection with a pipe or I hose, G, that leads to a suction (or force) pump. The means of connection between the hose or pipe G and the nozzle consists, as shown, of a union coupling, H; but the hose may be made the tank containing the antiseptic liqiiidtmbe" forced through the pores of the wood by the atmospheric pressure resulting from the partial vacuum in chamber F.

S are sinkeebars fixfll ififihfil g to keep tmmrsa. s- In treating short pieces of timber-such as railway tiesthe tank may be made deep enough to receive the timber in a vertical position. In this case the timber would be so supported as to expose the lower ends to contact with the liquid, so that it may freely enter the pores. 1

The liquid may be supplied to the receiving end of the log through a chamber formed by a cap applied to that endof the log and in communication with a source of supply when suc-.

tion is applied to the other end. When the cap 0 G is used I render it impervious to air or liquid by daubing or covering the outer end of the same with tar or other suitable material. When the cap is not immersed paste, mud, or other suitable material may be used to close the pores of the cap.

Where the liquid is applied to the log by mechanical or hydrostatic pressure no trough would be used. The liquid would be supplied to the receiving end of the log through a chamber, F, substantially as shown in Figs. 1 and 2. The liquid would be caught in a trough at the other end of the log or logs.

The same apparatus is applicable to seasoning timber under the process described in my Patent No. 231,783, of August 31, 1880.

I claim as my invention 1. The flexible metal hoop A, whose edge is fitted to enter the timber, provided with means for connection of a pipe or hose, for the purpose set forth.

2. The flexible metal hoop A, whose edge is fitted to enter the timber, provided with bosses 5 D and nozzle E, substantially as and for the purpose set forth.

HENRY FLAD.

Witnesses:

SAML. KNIGHT, Gno. H. KNIGHT.