US446444A

US446444A - Sylvania

Info

Publication number: US446444A
Authority: US
Publication date: 1891-02-17
Anticipated expiration: 1908-02-17

Description

(No Model.) 3 SheetsSheet 1.

W. E. GOOD & G. 0. LINDROTH. LINK MOTION FOR COMPOUND ENGINES.

Patented Feb. 17,1891;

l I I I Win eases:

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(No Model.) 3 Sheets-Sheet 2 W. E. GOOD & 0. O. LINDROTH. LINK MOTION FOR COMPOUND ENGINES. 444.

YIIIIII/l) Patented Feb. 17,1891

(No Model.) 3 Sheets-Sheet 3. W. E. GOOD 8: O. 0. LINDBOTH.

LINK MOTION FOR COMPOUND ENGINES.

Patented Feb. 17,1891.

lhvTTnn STaTns PATENT Orrrcn.

\VILLIAM E. GOOD AND CARL O. SYLVANIA, ASSIGNORS TO THE COMPANY, OF SAME PLACE.

LINDROTII, OF PHILADELPHIA, PENN SOUTI-IWARK FOUNDRY AND MACHINE LINK-MOTION FOR COMPOUND ENGINES.-

SPECIFICATION forming part of Letters Patent No. 446,444, dated February 17, 1891. Application filed November 20, 1890. Serial No- 371,984 (No model.)

To all whom it may concern.- Be it known that we, WILLIAM E. GOOD and CARL OSKAR LINDROTH, both of the city and county of Philadelphia, State of Pennsyl- Vania, have invented a certain new and usef ul Improved Link-Motion for Compound Engines, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part of this specification.

Our invent-ion relates to an improvement in valve-actuatin g links of the kind generally known as the Pius Fink link, and by which they are adapted for use with compound ongines, our object beiiig to adapt the link so that it will actuate the admission and exhaust valves of both the high and low pressure cylinder.

The nature of our improvement will be best understood as described in connection with the drawings, in which it is illustrated in connection with a compound engine of the Porter Allen type, and in which- Figures 1 and 1 make up together a plan 2-5 view of the engine; Figs. 2 and 2, a side elevation thereof; Fig. 3, an enlarged elevation of the link; Fig. 4, a section through the link and attachments on the line 1 2 of Fig. 3; and

Figs. 5 and 6 are plan views illustrating two modifications in mechanism for adjusting in the link the rod which actuates the admissionvalves of the low-pressure cylinder.

A is the bed-plate of the engine; B, the high-pressure cylinder; C, the low-pressure 3 5 cylinder.

D is the main shaft of the engine; E, an eccentric situated thereon; F and F, the well known Pius Fink link, combining the eccentric-strap F and the slotted link F. f is the slot in the said link, in which the rod which actuates the admission-valves of the highpressure cylinder is secured.

II is the usual guide-link, pivoted to the bedplate at one end and in the slot f at the other end.

111 addition to the usual slot f we provide in or in connection with the slotted link F F an independent supplemental slot g, in which is secured the end. of the rod T, which act-uates the admission-valves of the low-pressure 5o cylinder. As shown in the drawings, and as preferably constructed, the supplemental slot 9 is form ed in a plate G, which is bolted to the link F F, as shown, so that the slotg shalllie substantially in line with the slot f. I is a pin secured to the link F F, as shown, and to which pin is secured the rod P, which actuates the exhaust-valves of both cylinders. The mechanism shown in the drawings, by which the motion of the rods J, T, and P is communicated to the dilferent valves which they actuate, is that which I have found well adapted for use in connection with the style of engine illustrated, but may of course be modified in many respects. As shown, the rod J is secured to an arm k of a rock-shaft K, upon which shaft are also secured arms 7e and 7a, which arms actuate, as shown, the connecting-rods L and L ,which, acting through the slides M and M, communicate motion to the inlet-valves N and N of the high-pressure cylinder The desired variation in the cut-off is effected in the usual way by means of a governor O, which changes the position of the pivoted end of rod Referring next to the rod T, it will be necessary that it connects with an arm tof a rockshaft T, upon which rock-shaft are also secured the arms '15 and t which actuate, respectively, the connecting-rods U and U, the other ends of which connect with the slide it and a, which in turn, by means of rods extending into the valve chest, actuate the inlet-valves V and V of the low-pressure cylinder. The rod P is arranged, as shown, to actuate the exhaust-valves of both cylinders. It is connected to the pin I on the link F F and to the arm Q of rock-shaft Q, from which shaft also extends another arm Q From the said arm Q a connecting-arm q communicates motion to the exhaust-valves R and R of the higlnpressure cylinder. Connecting with a second pivot, as shown, of the arm Q, a connecting-rod S communicates motion to a rocking arm S, to which arm is also secured the connect-ing rod S which connects with and actuates the outlet-valves s and s of the low-pressure cylinder.

Ve have found that it is not necessary or advisable to change the stroke of the admission-valves of the low-pressure cylinder during the ordinary normal running of the en- 5 gine. It is only necessary, therefore, to make an adjust-able connection of the end 'Fof rod T in the slot g. This may be done in any convenient way, as by a clamping-nut, but more conveniently by constructions such as are shown in Figs. 5 and 6.

In Fig. 5 the adjustment of the end of rod T in the slot 9 is effected by a lever X, connecting with red T at one end by means of a rod X, and having a catch X at its handle end, by which the lever X can be adjusted in any desired position with respect to a segment X supported on a standard X.

In Fig. (5 the end of rod T is made adjust able by means of a screw XV, supported at the upper part of the link F, and by turning which the end of rod T is elevated or depressed in the slot g. 7

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

1. In combination with acompound engine, a link, as F F, having a slot f, and a supplemental slot g, as described,a rod J ,automatically adjustable in slot f and arranged to actuate the admission-valves of the highpressure cylinder, a rod T, adj ustable in slot g and arranged to actuate the admissionvalves of the low-pressure cylinder, and a rod or rods P, also connected with link F F and arranged to actuate the exhaust-valves of the cylinders.

2. In combination with a compound engine, a link, as F F, having a slotf, and a supplemental slot g, as described, a rod J, automatically adjustable in slot f and arranged to actuate the admission-valves of the highpressure cylinder, a rod T, adjustable in slot 9 and arranged to actuate the admissionvalves of the low-pressure cylinder, means for adjusting rod T in slot 9, as described, and a rod or rods P, also connected with link F F and arranged to actuate the exhaustvalves of the cylinders.

\VILLIAM E. GOOD. C. O. LINDROTII.

Witnesses:

LEWIS R. DICK, FANNIE T. CHAMBERS.