US2167952A - Valve - Google Patents

Description

U- 1, 193,9. l.; c. JORDAN 2,167,952

VALVE Filed June l0, l1957 L. L. Jybizzzz;

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Patented Aug. 1, 1939 UNITED sTArss smear orties Leo C. Jordan, Peoria, Ill.

Application June 10, 1937, Serial No. 147,504

3 Claims.

This invention relates to valves for use in connection with sand-blasting operations. More particularly, the invention has todo with a valve for the control of the flow of sand and air as delivered from a sand-blasting machine to the place of use for sand-blast delivery.

An object ofthe invention is to furnish a valve or cut-off for the sand under pressure through aconduit, such valve being of such nature or type Y lo as to withstand abrasion for exceedingly long periods of time.

. Another -object is the provision of a type of valve having no metal in its makeup to be cut away by the abrasive force of the sand under 'la air pressure travel.

Still another object is to provide a valve including a portion having a relatively straight passage but little affected by wear of sand under pressure therethrough and that can be `closed by apstraight path.

Again, an object lies in providing a valve structure wherein the flow passage for sand is within 5 and extends through a flexible member, such structure including means for collapsing such member in a lateral direction to constrict and finally close such passage to said flow.

' Further, an object is that of furnishing a valvev structure including a conduit of an elastic nature that can be collapsed or compressed laterally to cut off the flow of sand and which will regain its normal form when pressure is removed, such valve structure having adjustment whereby any diameter of conduit may be accommodated.

Other objects and advantages will be made known in the following specfications aided by the appended drawing wherein- Figure 1 is a side elevation of the valve of my o invention,

Figure 2 is arplan of the same, l

Figure 3 is an end elevation of the valve, showing parts in section, as it would appear in viewing the same from the left of said Figure 1.

Figure 4 is a transverse section of the valve, in part, taken on line 4-4 of Figure 2.

Figure 5 shows a cam in perspective.

Valves as now used in sand-blasting operations are of the metal type such as employed in pipes for handling liquids and naturally of such nature that for sand-blasting purposes are of but short life due to abrupt surfaces over which the sand must travel under the required high pressure, such surface being on the body of the valve and the cut-off member, or plug, as well.

By reason of the expense Yof such often replacferred structure shown may, perhaps, be changed f in minor details.

Y A body or carrier is denoted at I in the form `of a plate, for example, which may have any desired'forrn of outline, and in this instance has a depending flange 2 at each longitudinal edge, Figures 3 and 4. Abutting each ange is a side member or cheek 3 secured by bolts 4, for example, each saidmember having parallel slots 5 to receive the latter and by which adjustments of the member may be made with respect to said body or plate I. The members or cheeks lie in spaced relation, naturally, as spaced by the said plate, and between them lies a follower 6 in the form of a plate, there being at each end thereof what may be termed a gudgeon i, each extending through a'slot 3 in a member or cheek 3, said follower being guided in the named slots in a direction at right angles to the plane of the body or plate I. Mounted pivotally between the Vcheeks 3 at their free ends above the said body I is an operating member such as a cam 9, in the present instance, the same having an operating lever-arm I6 .as a part thereof.

With the structure thus arranged, or the equivalent thereof, is employed a collapsible or compressible conduit in the form of a rubber hose such as that ordinarily used in sand-blasting operation. This said` conduit is designed to be carried by and upon the body or plate I beneath the named follower And said conduit may be an extremity of the full-length hose ordinarily employed or it may be a short section of such a hose as illustrated herein at I I. That this may be held securely in position a clamping arrangement I2 is provided at spaced positions on the body I, the extremities of the section II being held thereby together with an inserted nippleY I3 at one end, held by a clamp i3', and which has attachment with the machine (not shown) from which the sand is delivered under air pressure. At the other end of the section a nipple I4 may also be clamped and to which any length of hose I5 having a sand-blast delivery nozzle (not shown) may be attached. T'he nipple I3 since fixed in position at the sand-blast machine or its piping (not shown) serves for a rigid support for the entire valve arrangement described.

The conduit or hose section II, or equivalent compressible part is held securely with its axis in a straight line so that the air and sand flow has a free course and but little chance of wear on the walls of said section when the cam is free of the latter during sand-blasting operations.

Due to the compressibility of the section, however, the flow may be instantly out off by lowering the lever-arm I0 to depress the follower 6 and close the passage of the section, this condition being shown in Figure 4.

The adjustment of the cheeks 3 with respect to the body I through the use of the bolts 5, or by any other type of adjustment for changing the distance between the follower 6 and said body, provides for accommodating any diameter of conduit.

While the cam 9 has been shown as an arrangement for quick operation upon the conduit Il any other suitable means 'may be used.

The ability of the conduit to regain its open form upon receiving pressure of the cam thereon results in restoring the passage or bore of the same to its full diameter.

After long use the conduit Ill is readily replaced by another length thereof, or where an extremity of a full length hose is employed that part may be removed and the hose extremity placed in position within the clamp.

It is to be understood that changes may be made in the structure such as may be considered to lie within the inventive act and with the terms of the appended claims.

I claim:

1. In a sand blast valve, in combination, a body or carrier for receiving a. hose, a hose section, clamping means near opposite extremities of the body engaging about the end of the hose section, clamping said ends in a lateral direction, a nipple extending into an end of the hose, means for securing said nipple in said hose cornprising a clamp engaging about the same for applying pressure laterally thereof, supporting means carried by the body between the positions of the two rst named clamping means, the same being adjustable on said body in a line substantially perpendicular to the longitudinal line of the hose section, means to secure the supporting means in various positions of adjustment with respect to the body, and a member rotatable about an axis being movable relative to the body upon adjustment of said supporting means.

2. In a sand blast valve, in combination, a body or carrier for receiving upon it a hose, a hose seated thereon, spaced clamping members on said body for receiving and clamping the extremities of the hose section to the body, a nipple extending into each end of the hose section and clamped therein, adjustable supporting means extending from opposite edges of the body above the surface thereof that received the hose, the same lying between the positions of the spaced clamping members, means for fixing the supporting means with respectto the body, and a cam, including a lever pivoted to said supporting means adapted for applying pressure upon and for collapsing the hose section vupon said body.

3. The invention according to claim 2 including a follower interposed between the cam and the hose.

LEO C. JORDAN.

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