US523925A - Hydraulic compress - Google Patents

Description

(No Model.) 2 Sheets-Sheet 2. W W. BIBROE & A. THOMLINSON.

HYDRAULIC GOMPRE'SS.

Ila 523,925.

Patented July-31, 1894..

Snob/1413014 m v Q na/lag! UNITED- STATES PATENT FFIGE;

WILL W. BIERCE AND ARTHUR THOMLINSON, OF MONTGOMERY, ALABAMA.

HYDRAULIC COMPRESS.

SPECIFICATION forming part of Letters Patent N0. 523,925, dated uly 31,1894. Application filed October 2,1893. Serial No- 487,006. (No model.)

To all whom it may concern.-

Be it known that we, WILL W. BIERCE and ARTHUR THOMLINSON, of Montgomery, in the county of Montgomery and State of Alabama, have invented certain new and useful Improvemen ts in Hydraulic Oompresses; and we do hereby declare that the followingiis a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to certain improvements inhydraulic compresses. 1

The invention relates more particularly to improvements in the construction of the Taylor hydraulic cotton compresses wherein high pressure and low pressure hydraulic cylinders are connected with the press cylinders and are, respectively, provided with steam cylinders secured thereto in alignment therewith'and the pistons on the steam cylinders are rigidly connected by piston rods with the pistonsin theirrespective' hydraulic cylinders. A suitable system of steam pipes is provided for the steam cylinders so that the piston in the low pressure steam cylinder is first forced forward to impart the initial stroke to the press, and then the steam is turned into the high pressure steam cylinder which gives the final quick heavy stroke to the press, so-that the two successive strokes are imparted to the bale. A. suitable system of steam pipes has been so arranged that the exhaust steam from the high pressure cylinder has been utilized to move'the low pressure piston and each cylinder has been provided with a suitable exhaust. This system has certain disadvantages, such as the drawing in of air in the low pressure cylinder when its piston is forced back by the pressure from the high pressure cylinder. Furthermore the steam from one exhaust has been utilized to supply the heater with steam for heating the feed water for boilers. The entrance of air to the low pressure cylinder or either one of the cylinders is a great disadvantage and is accompanied by many serious. objections.

It is the object of our present invention to 'ton is connected so connect and construct a system of steam pipes that all of the exhaust steam will be utilized and discharged into a single exhaust passing through heater and also both cylinders will be out ofi from the outer air, so that the air will not enter the cylinders, whatever the movement or position of the pistons therein.

This invention consists of a hydraulic compress comprising the two adjacent steam cylinders, a steam supply pipe, therefrom extending across the rear end of the cylinders and from thence extending across and opening into the front ends of the cylinders, a single exhaust arranged at the front end of the cylinders, into which both of said branches open from the front ends of the cylinders, the valved side connection, the valves arranged in the branch pipes on opposite sides of the opening into the rear ends of the cylinders, and the valves 'in the front ends of the pipe between the exhaust and the openings into the front ends of the cylinders. Referring to the accompanying drawings: Figure 1, is a plan view of the cylinder and feed'conduit of a press constructed after our invention. Fig. 2, is a longitudinal section of one of the steam cylinders, and of the hydraulic cylinder connected therewith.

-In the drawings the reference letter a, indicates the low pressuresteam cylinder, and

the letter I), the high pressure steam cylinder. 7 These two cylinders are preferably secured together in a horizontal parallel position, substantially as shown.-

c, indicates the low pressure hydraulic cylinder secured to the front end of the low pressure steam cylinder in alignment therewith a distance therefrom. The low pressure steam piston e, is connected with the pressure hydraulic piston g, by means of the rigid piston rod h, so that these two pistons move together. The high pressure steam pisto the high pressure hydraulic piston i, by the rigid piston rod 3', in the same manner, and the high pressure hydraulic cylinder is secured to the front end of the high pressure steam cylinder in a similar manner to that of the low pressure cylinder as before described.

The front ends of the hydraulic cylinder branch pipes are connected with the press operating cylinder in any usual or suitable manner.

70, indicates the live steam supply pipe located above and midway between the rear ends of the steam cylinders. A branch m, extends laterally from said steam supply pipe across the rear end of the low pressure steam cylinder and is from thence continued around, see p, and up beside said cylinder to the front end thereof, and from thence is continued across the front end of said cylinder to the final exhaust pipe 8, located midway between the front end of the cylinders, and preferably in a line above the same. A branch steam pipe it, extends from said live steam supply pipe across the rear end of the high pressure steam cylinder, and is from thence extended up beside said high pressure cylinder see q, to the front end thereof where it is continued across the front end of said cylinder to the said exhaust s.

The steam supply pipe m, is provided with an opening into the rear end of the low pressure steam cylinder at 0, and the pipe 1) is provided with an opening 7' into the front end of the low pressure steam cylinder. The pipe 12, is provided with an opening into the rear end of the high pressuresteam cylinder, and the pipe q, is provided with an opening 15 into the front end of the high pressure steam cylinda u I 2 indicates a cut ofi valve located in the pipe on, between the opening 0, and the cut, oil. valve 1, in the live steam supply pipe.

4, indicates a cut ofi valve inthe pipe 1), at the rear end of the low pressure cylinder located between the opening 0 and a", intosaid low pressure cylinder.

5, is a cut elf valve in the pipe 19, at the front end of the low pressure cylinder and located between the opening 0', in the low pressure cylinder-,and the exhaust s.

3, is a cut off valve in the pipe a, between the live steam supply pipe 70, and the opening 0 into the rear end of the high pressure cylinder.

6, is a cut off valve in the pipe g, at the rear end of the high pressure cylinder between the openings 0' and t, into said high pressure cylinder.

8, is a cut off valve in the pipe q, between the opening t, and the exhaust pipe 3.

a is a side connection pipe extending from the pipe q, at a point between the valve 6, and the opening t, to the pipe m, atthe point where it discharges into the rear end of the low pressure cylinder at 0, and between the valves 2- and 4. This side connection pipe at is provided with the out off valve 7.

In operation, the valve 1, being open, and the valves 7 4, 5, 8, 6 and 3 being closed and the live steam valve 2, open, the live steam in pipe passes through pipe m and opening 0, into low pressure cylinder behind the piston thereof, imparting the initial stroke to the piston and to the press through the medium of the mechanism hereinbefore described.

is then opened The valve 2, is then closed, and the valve 3,

through pipe n, and opening 0' into the high pressure cylinder, thereby forcing the piston thereof forward and imparting the finishing quick heavy stroke, to pass through the medium of the mechanisms before described.

The valve 3, is then closed. The valve 4 in pipe 10, is then opened so that the steam exhausts from behind the low pressure piston, passes up through opening 0, and pipe 10 into the front end of the low pressure cylinder thereby permitting its piston to move back to the rear end of the cylinder ready for another stroke. The valve 4, is then closed. The valve 6, is then opened permitting thesteam to exhaust from the rear end of the high pressure cylinder through pipe q, 111120 the front end of the high pressure cylinder thereby permitting the high p e sure piston to move back in readiness for another stroke. The valve 6, is then closed. The valve 7, is then opened thereby permitting the steam to. ex* haust from the front end of thehig-h pressure cylinder through openingst, pipeq, and side connection pipe or, and. opening 0 into the rear endof the low pressure cylinder, moving the low pressure piston forward its entire or a portion of its entire stroke. The valve 5, having been previously opened so that the exhaust steam in front of the low pressure piston discharges into the exhaust pipe 3.

the exhaust steam from the high pressure cylinder does not carry the low pressure piston forward its complete stroke, the valve 7, is closed, and the valve 2 opened so that the live steam is provided to finish the stroke of the low pressure piston. The valve 3, is then opened permitting live steam to flow behind permitting live steam to flow the high pressure piston, the valve 8, having been previously opened. The high pressure piston then makes its stroke. The exhaust steamin front of the high pressure piston is discharged through valve 8 into the exhaust pipe 5. These operations are continued in proper sequenceas the machine is actuated.

It will be observed that all the exhaust steam from the cylinder is exhausted into the single exhaust pipe 8., which is usually connected with the feed water heater, not shown or to some other devioewhere the heat of the steam, or the steam can be utilized for some useful purpose. It will also be observedthat the parts are so connected and arranged that no cold air can be drawn into the cylinder, and thereby the cylinders are not suddenly chilled but are kept heated at the proper point to prevent injury to the cylinders, or undue condensing of the steam. By this peculiar arrangement, a very material savingis affected in the running of the machine, and furthermore the durability and life of the apparatus is increased.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent of the United States, is--r A hydraulic compress comprising the adtween the exhaust and the openings into the front ends of the cylinders, for the purpose set forth. v

In testimony that we claim the foregoing as our own we affix our signatures in presence of two witnesses.

WILL W. BIERCE. ARTHUR THOMLINSON.

Witnesses:

HORACE MOFADDIN, W. A. SAFFORD.

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