US303131A - Safety car-truck - Google Patents

Description

(Nomodel') J. DNECHAUD, sr.

SAFETY CAB TRUCK.

No. 303,131. Patented Aug.5.1884.

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UNITED STATESk PATENT @tiene JnAnfrv DnnncHAUn, sn., or sAsT FnANcrsco, cALironNiA.

SAFETY CAR-TRUCK.

.GY'ECIFCATIGN forming part of Letters Patent No. 303,133.x dated August 5, 1884.

Application filed December 1T,

To all whom t muy concern:

Beit known that I, JnAN'rY DNCHAUD, Sr. ,ofthe city and county of San Francisco, and State of California, have invented an Improve nient in Safety Railway-Cars; and I hereby declare the following to be a full, clear, land exact description thereof.

My invention relates to that class of safety railway-cars in which rollers are projected into or withdrawn from the grooves in the rails by means of suitable mechanism attached to and operated from the car, whereby in dangerous places and sharp' curves in the road derailment is prevented.

My present invention relates, more particularly, to certain improvements upon that safety railway-car secured to me by Letters Patent of the United States, No. 235,135, dated December 7, 1880;. and they consist in arched arms which carry the rollers and in novel mechanisms for operating them, all of which I shall hereinafter fully explain.

The object of my invention vis to so shape the arms th at in their operation they shall not come in contact with cross-roads, and to provide more practical means i'or operating them.

Referring to the accompanying drawings, Figure l is a vertical cross-section through 4the car, showing the arched arms raised and the rollers removed from the groove in the rails. rollers projected into the rails. Fig. 3 is a vertical longitudinal section oi' same. Fig; 4 is avertical section showing means for introducing the rollers in the outer grooves.

A is the car, and B its wheels, traveling on rails C, in which is the groove c. Under the car is secured a frame, J, to which are bolted slottedguides H. l

D is a vertical spindle or rod passing loosely through the car and `frame J.

E E are arms, the inner ends of which are pivoted to a piece, e, through which the spindle D extends.

slotted guides H, and their outer ends are bent downwardly and outwardly, as sh own in Figs. l, 2, and carry the friction-rollers G. It will he seen that the arms E E thus bent form an arch under which an obstruction might pass. In order to operate these arms I have the Fig.v 2 is a similar view showing the.

These arms pass through the (No model.)

toggle-lever F, the inner ends of which are pivoted to a block or piece, c, in the top oi' which the end of spindle I) is secured. The

outer ends ofthe lever passing through slotted guides II are pivotcd to the downtnrned portion of arms E.

l? is an elbow-lever pivotcd on the car, and connected with the upper end of spindle D. Q is a rack with which said lever engages. "When the spindle D is drawn up, the arms E arel raised, the rollers G being withdrawn from the rails, and the whole mechanism being ont of the way, as shown in Fig. l. 'Whenthe spindle is vforced down, it presses down the toggle-lever l?, which carries with it the arms E, forcing the rollers G down to a plane horizontal with the grooves in the rails. point the toggle-lever is stopped by the guides H and the pressure of the lever is exerted to force said toggle into a straightened position. This causes the arms E E to extend outwardly and to insert their rollers into the grooves in the rails, as shown in Fig. 2. The operation of the lever l? is more rapid than if a screw were used to operate the arms. Wherever Wagon-roads or streets cross a railroad-track, thespace between the rails is llcd in to a level with the rails to permit the continuation of the common road; or, for some other canse, the bed of the road may be iilled in to a level with or higher than the grooves in the rail. It is obvious that in such a case the arms shown in my former patent would he obstructed as they were forced down to a plane on a level with the grooves; but in my present improve nient, the arms, being bent or arched, are not liable to be obstructed, but will pass over the intersecting roads, even when forced down, as shown in Fig'. 2.

Although I have indicated only the insertion of rollers in the inner groove of the rail, it is not impossible, though not preferable, to cause them to fit the outer groove. This I show in Fig. 4, the only changes being the reverse of the relative positions of the arms E E and togglelever F, the divergence ofthe slotted guides H, and the in wardly-tnrned ends of the arms E E. This ac rching of the arms is the more necessary, as it is intended in the use of my safety device to project the rollers into the Ai. uns

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grooves of the rails at the beginning of the journey, `and leave them so placed throughout its continuance, but if no provision were made for cross-roads and obstructions this could not be done. With the arched arms, however, the dilliculty is fully remedied, and the safety device may be continued in position without liability to injury.

rlhe rail herein shown forms the subjectmatter of a separate patent, and needsno fur ther reference.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

I. In a safety rail Way-car, the bent arms E E, carrying rollers G, and the pieces, to which their inner ends are pivoted, in combination with the toggle F, bearing c, spindle D, and

means for raising and lowering` said spindle, l

In witness whereof I have hereunto set my hand.

JEANTY DnNncHnUD, Vitnesses:

NVM. F. Boo'rH, C. DnNiboimUD.

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