US1265173A - Valve-adjusting device for steam-hammers. - Google Patents

Description

- C.J.CARLSON. VALVE ADJUSTING DEVICE FOR STEAM HAMMEBS.

APPLICQTION FILED JULY 23.1917.

Patented 'May 7, 1918.

TZ QZZZsOzz UNITED STATESIPATENT onricn.

CARL J. cAnnson, 0F EASTI-IAMPTON, MASSACHUSETTS.

Specification of Letters Patent.

VALVE- DJUSTING nEvIoE on s'rEAM-nAMMEEs.

Patented May 7, 1918.

Application filed July 23, 1917. Serial N 0. 182,347.

To all whom it may concern:

Beit known that I, CARL J. CARLSON, a citizen of theUnited States, residing at Easthamptomin the county of Hampshire and State of Massachusetts, have invented certain new and useful Improvements in Valve-Adjusting 'Devices for Steam-Hana mers; and I do declare the following to be a full, clear, and exact description of the invention, such' as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in valve adjusting devices to be more particularly'used in connection with steam drop hammers. I

The primary object of the invention is to provide an appliance which is disposed between the valve rod of acsteam drop hammer and'the movable operating member to regulate the moment of opening and closing of the valve.

Another object of the invention is to generally improve upon valve operating devices of this character by the provision of an extremely simple,,strong, durable and inexpensive construction, one which will be eflicient and reliable in operation, and well adapted to the purpose for which it is designed. I

With these and numerous other objects in view, the invention consists of certain novel features of construction and the combination and arrangement of parts as will be hereinafter fully described and claimed, the descriptive matter being supplemented by the accompanying drawings in which similar reference characters designate correspond ing parts throughout the several views and in which:

Figure 1 is a side elevation of a steam hammer, illustrating the application of an appliance constructed in accordance with this invention thereto;

Fig. 2 is a front view on an enlarged scale of the device;

' Fig. 3 is a vertical sectional view taken on the plane of the line 33 of Fig. 2; and,

Fig. 4 is a horizontal sectional view taken on the plane of the line 4.-1 of Fig. 2.

Referring more particularly to the drawings, the letter A represents a steam drop hammer which is shown in conventional form for the purpose of illustrating the ap As is usual in hammers of this character, the ram is lifted by steam which is admitted to :the ram cylinder by means of a suitable valve 13, the latter being usually operated by either a treadle C or a hand lever. D through the medium of a link F and a valve rod G. Oftentimes it is desired to vary the stroke of the ram by determining orregulating the moment of opening and closing of the valve B, and it is to accomplish such a purpose that the present invention is devised. I

Instead of connecting the-valve rod G directly to the hand lever D as is usually the custom, this valve rod is eccentrically connected to a circularmember 1 by means of a pivot screw 2. The member 1 is pro vided on its inner side with a circular central boss 3 which is received in a correspondingly shaped and arranged recess 4: in another circular member 5, the latter being secured, by means of a'bracket 6, to the hand lever D. Both of the members 1 and 5 are provided with central openings 7 and 8 respectively, the opening 7 being countersunk as shown.v Extending through these openings 7 and 8 is a pivot bolts9, the head of which is received in the countersunk portion of the opening 7 while threaded on its free end is a clamping nut 10. By this con struction it will be seen that the members 1 and 5 are movably and turnably mounted with respect to each other.

The member 1 is provided adjacent one of its edges with an arcuate slot 11, and through this slot extends a locking screw 12, the inner end 13 of which is threaded into the member 5, while the head 14 engages stroke of the ram of the hammer, the screw 12 is loosened in order that the adjusting members 1 and 5 may be moved relatively to each other, which is done by moving the when it is desired to shorten or lengthen the handle 16, and then the screw 12 is again tightened so as to maintain these two parts in their newly adjusted positions. The convenience of the adjusting device will be greatly appreciated by those skilled in the art,

From the foregoing description, taken in connection with the accompanying drawings, the construction, use and operation of the device will be readily understood without a more extended explanation.

As various changes in form, proportion, and in the minor details of construction may be resorted to without departing from the spirit of this invention, it is to be understood that I do not Wish to limit myself to the precise construction herein shown and described.

I claim l. The combination of a lever, a pivotally mounted member carried by said lever and angularly adjustable relative thereto, a clamping element carried by said lever and operable to clamp said member and hold it in its different adjustments, and an element connected to said pivotally mounted member at a point eccentric to the pivotal mounting of the latter, the last said element being operable by said lever and adjustable relative thereto by means of said pivotally mounted member.

2. In a device of the character described, the combination of two members disposed side by side and turnably connected together so as to be angularly adjustable with relation to one another, a clamping element cooperative with one of said members for cla ming the other of said members and thereby retaining them in their difi'erent adjustments,a valve-operating rod connected to one of said members at a point eccentric to the point at which they are turnably connected, and a valve-operating lever connected to the other of said members.

3. In a device of the class described, the combination of two circular members disposed side by side and turnably connected together, one of said members being pro vided with an arcuate slot near one edge thereof, a screw extending through said slot and threaded into the other member to lock said members in their relatively adjusted positions, a valve rod eccentrically connected to one of said members, and a movable operating member connected to the other.

4:. In a device of the class described, the combination of a lever, a supporting member rigidly united with said lever, an adjusting member turnably mounted on said supporting member, a rod eccentrically connected to said adjusting member, and means for maintaining said supporting member and said adjusting member in their relatively adjusted positions.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

CARL J. CARLSON.

lVitnesses VILLIAM H, HANNUM, GnoRGE K. BROCK.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. G.

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