US1212965A - Means for controlling an actuating-rod. - Google Patents

Description

C. S. LEONARD & C. 0. REEPS. MEANS FOR CONTROLLING AN ACTUATING ROD.

APPLICATION FILED JUNE 19, I915. llwjll Patented Jan. 16,1917.

3 SHEETS-SHEET I.

3% INVENTORS WITNESSES C, S. LEONARD & C. 0. REEPS. MEANS FOR CONTROLLING AN ACTUATING ROD.

APPLICATION FILED JUNE 19' 1915. N Patented Jan. 16, 1911.

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C. S. LEONARD & C. O REEPS. MEANS FOR CONTROLLING AN ACTUATING ROD,

APPLICATION FILED JUNE 19. r915.

2 1 3 5, Patented Jim 16, 191?.

3 SHEETS-SHEET 3.

CHESTER S. LEONARD AND CHARLES 0. KEEPS, 0F PHILADELPHIA, PENNSYLVANIA,

ASSIGNOBS TO THE WILLEY COMPANY, INCORPORATED, 0F PHILADELPHIA, PENN- SYLVANIA, A CORPORATION OF PENNSYLVANIA.

MEANS FOR CONTROLLING AN AGTUATING-ROD.

Specification of Letters Patent.

Patented d ain. Jlfi, TWW.

Application filed June 19, 1915. Serial No. 35,185.

To all whom it may concern Be it known that we, CHESTER S. LEONARD, and CHARLES 0. Bears, both citizens of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Means for Controlling an Actuating-Rod, of which the following is a specification.

Our invention relates in general to mechanism used in connection with ironing machines for laundries, in which a treadleoperated fluid-pressure cylinder and valve mechanism are used to control the movement of an actuating rod, which is intended, in the application of the invention as an entirety to ironing machines, to itself operate' saddle and neck band presses, but which, as will be obvious when the invention is understood, is adapted for the operation of any device, an element of which is a mechanically controlled moving member typified by a rod, bar, or stem capable of being reciprocated under desired control. To the foregoing ends. our invention, having for its object an efiicient device for controlling the movement of an actuating rod per se, comprehends the. specific pneumatic valve and cylinder mechanisms typified in the accompanying drawings and hereinafter described,the specific subject-matter which we have invented being definitely specified in the claims.

For the purpose of illustrating our invention, we have shown in the accompanying drawings, a certain type and embodiment of it which is at present preferred by us, because in practice it has given satisfactory and reliable results. It is to be understood, however, that the various instrumentalities in which our invention is embodied can be variously arranged and organized, and that our invention is not, therefore, limited to the precise arrangement and organization of these instrumentalities.

Referring to the drawings, in which a typical embodiment of our invention is depicted: Figure 1 represents a. side elevation of the complete apparatus; Fig. 2 represents a plan view of the same; Fig. 3 represents a fragmentary, side, sectional elevation through the actuating cylinder and piston,

. the control valve, controlling treadle, actuating lever and actuating rod; Fig. 4 represents in plan the actuating lever removed from the machine. Fig. 5 represents in front elevation the machine shown in side elevation in Fig. 1; Fig. 6 represents a longitudinal,-central, side section of the control valve and easing; Fig. 7 represents a transverse end section on the dotted line w-m of Fig. 6, of the casing of the control valve; Fig. 8 represents in end elevation, viewed from the-left of Fig. 6, the actuating valve.

Similar numerals of reference indicate corresponding parts.

Referring to the drawings :1 is a pedestal of any preferred conformation in the form illustrated erected from a bed plate 2. \Vithin this pedestal, the actuating rod 3, to bemoved and controlled by our valve-controlling cylinder and piston, operates; the upper end of the pedestal having the guide or slide bearing 4:, through which the actuating rod has movement.

5 is an actuating lever, fulcrumed at 6 to a standard 7 erected upon the bed plate. Intermediately of its length, the lever is preferably bifurcated at 8 to admit within its bifurcation the lower end of the actuating rod, which, as shown, is so shaped as to fit the bifurcation, and is pivoted within the latter by a pivot 9 which plays within a transverse slot 10 in the bifurcation, to prevent strain of the actuating rod upon and within its guide in the movement of the.-

lever. The outer end of the lever is provided with a slot 11, through which passes a transverse piston pin 12, fastened to the split head 13 of the rod 14 of the piston 15. The piston has reciprocatory movement within a cylinder 16 erected upon the bed plate, the head 17 of which is formed with the usual bearing 18 for the piston rod. The piston is peripherally provided with packings 19 of any preferred character, and, in the construction shown, is circumferentially recessed upon its upper face, as at 20, so as to receive within it, a coiled spring 21 which above the-piston abuts against the inner face of the cylinder head, and serves, when the lead is given to the exhaust. to move the piston downward to its basal or normal position within the cylinder.

22 designates air vents preferably formed in the cylinder head.

Obviously, the reciprocation of the piston will through the actuating lever, occasion the up and down or in and out movement of the actuating rod. The downward movement of the piston being occasioned by the spring 21, its movement in an upward direction will be occasioned by the motive fluid, such as compressed air, which is introduced below it under the control of a control valve 23 of the following form and preferably mounted in the following manner:

24 designates a valve casing, in the organization shown projecting horizontally and right angularly outward from the cylinder, and preferably being a casting integral with the cylinder; This valve casing is shown as of cylindric form and as embodying the cylindric valve chamber 25, into which the motive fluid inlet 26 opens. The valve casing is closed by a head 27 formed with an axial bore 28, through which passes the valve-rotating rod 29, which is supported by an adjustable bearing 30 fitted within the head 27 of the valve casing,and which is also exteriorly to the bearing 30 preferably supported by a bearing 31 formed within the standard 7. Beyond said standard 7, the valve rod is equipped with a double foot-treadle 32, locked to it by the lock nut 33.

34 designates an adjustable screw-stop in the bed plate, to control the downward move-' ment of the treadle in the direction and position represented in Fig. 5. Obviously, the treadle controls the oscillatory movement of the valve rod 29 in both directions. The control valve 23, which is fitted within the valve chamber 25, is preferably of the external hemispherical conformation represented in the drawings, and is formed with a cylindric seat or step 35, within which the inner end of the actuating rod is entered and securely fastened by the key 36 which passes through the rod.

37 designates a compression-spring abutting between the outer surface of the valve and the inner face of the head 27 of the valve casing, the function of which is to vmaintain the valve against the valve seat 38,

in the valve casing, as particularly illustrated in Figs. 6 and 7. The inner face 45 of the valve is formed with a crescent-shaped or segmentally formed recess 39' (Figs. 2, 6 and 8-) which has a range of rotation referably to a. similarly but preferably oppositely formed casing recess 40, which faces inwardly toward and bears against said inner valve face 45, and is formed with a port 41 or aperture leading to an exhaust outlet 42, through the valve casing, as best shown in Figs. 2, 6 and 7.

43 designates a fluid passage passing through the casting of the cylinder and valve casing, and leading into the base of the cylinder, through which, whenthe aperture H in the control valve registers with it,

motive fluid introduced through the fluid inlet 26 into the valve chamber 25 passes, as shown in Fig. 3, to the lower portion of the piston cylinder 16, to raise the piston and compress the .piston spring 21. Obviously, according to the position of the control valve when at rest in either its right or its left hand turn under the actuation or rotary movement occasioned by the throw of the double treadle, the respective opposing seat faces 45 and 38 of the valve and the valve cylinder being in contact,the respective peripheral positions of the valve recess 39 and casing recess 10, and the consequent registry or non-registry of the aperture 41 in the valve with the fluid passage 13 in the casing, will determine whether the inlet passages are open for the entrance of the actuating fluid into the cylinder, or are closed and the outlet passages in registry and open to give the lead to the exhaust.

It will now be apparent that we have devised a new and useful construction of actuating mechanism to control 1e movement of an actuating rod which embodies features of advantage, and that while we have, in the present instance, shown and described a preferred embodiment of it, which has in practice been found to give satisfactory and reliable results, it is to be understood that the embodiment is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

Having thus described our invention what we claim as new and desire to secure by Letters Patent, is

1. A device of the character stated, comprising in combination,a piston cylinder,a valve casing extending laterally from and having a fluid passage extending into said cylinder, and provided with fluid inlet and exhaust ports,a piston within said cylinder,an actuating lever connected at one end with the piston rod, and fulcrumed at the other end externally of the cylinder,an actuating rod connected with said lever between its fulcrum and its connection with the piston,a rotary valve Within the valve chamber,a valve recess in the face of the rotary valve,an oppositely corresponding recess in the valve-face of the casing,a valve-rotating rod,and a foot treadle for rotating said rod and valve.

2. A device of the character stated, comprising in combinat ion,a piston cylinder,a valve casing extending laterally from and having a fluid passage extending into said cylinder, and provided with fluid inlet and exhaust ports,a piston within said cylinder,a spring within the cylinder acting upon one end of the piston,an actuating lever connected at piston rod and fulcrumed at the other end externally of the cylinder,an actuating one end with the naiaaea rod connected with said lever between its fulcrum and its connection with the piston,arotary valve within the valve chamber,a spring within the valve chamber acting against the valve,a valve recess in the face of the valve,an oppositely corresponding recess in the valve face of the cas.

1ng,-a valve-rotating rod,,-and a foot treadle for-rotating said rod and valve.

3. A device of the character stated, comprising in combination,a piston cylinder,--a valve casing extending laterally from and having a fluid passage extending into said cylinder, and provided with fluid inlet and exhaust ports,-'a piston within said cylinder,-an actuating lever connected at one end with the piston rod and fulcrumed at the other end externally of both the cylinder and the valve chamber and intermediately of the valve chamber and the foot treadle,an actuating rod connected with said lever between its fulcrum and its connection with the piston,a rotary valve within the valve chamber,a valve recess in the face of the rotary valve,an oppositely corresponding recess in the valve-face of the casing,a valve-rotating rod,a

bearing for said rod in the external end of.

the valve chamber,another bearing for said rod in the fulcrum support of the actuating lever,and a foot treadle for rotating said rod and valve.

4. A device of the character stated, comprising in combination,-a piston cylinder,a valve casing extending laterally from and having a fluid passage extending into said cylinder,a fluid inlet port leading into the valve casing to the rear of the valve,a fluid exhaust port leading out from said casing in advance of the valve,-

a piston within said cylinder,an actuating lever connected at one end with the piston rod, and fulcrumed at the other end externally of the cylinder,-an actuating rod connected with said lever between its fulcrum and its connection with the piston,a rotary valve Within the valve chamber provided with a valve aperture adapted to register with the fluid passage of the valve casing, a valve recess in the face of the rotary valve,an oppositely corresponding recess in the valve-face of the casing,a valverotating rod,-and a foot treadle for rotating said rod and valve.

5. A device of the character stated, comprising in combination,apiston cylinder,a valve casing extending laterally. from and having a fluid passage extending into said cylinder,-a fluid inlet port leading into the valve casing to the rear of the valve,a fluid exhaust port leading out from said casing in advance of the valve,-

CHESTER s. LEONARD. CHARLES o. nE rs.

Witnesses:

E. HAYWARD FAIRBANKS, C. D. MeVAr.

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