US757235A - Derrick-car. - Google Patents

Description

PATENTBD APR. 12, 1904.

M. SGHMALTZ. DERRICK CAR.

-nPLIoATIoN FILED DBO. 21, 190s.

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NO MODEL.

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` PATENTBD APR. 12, 41,904.

M. SCHMALTZ. DERRIGK GAR.

PPLIUATION FILED Dnc. 21. 1903.

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N0 MODEL.

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Wi i? e as es ms Pncls co. P Y um UNITED STATES Patented April 12, 1904.

PATENT OFFICE.

DERRlCK-CAR.

SPECIFICATION forming part of Letters Patent NO. 757,235, dated April 12, 1904.

Application filed December 21, 1903. Serial No. 1855936. (No model.)

To all whom it may concern,.-

Be it known that I, MICHAEL SGHMALTZ, a citizen ofthe United States, residing at Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Derrick-Cars; and I do hereby 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.

My invention relates to derrick-cars, and has for its object the construction of a car provided with trucks adapted to rest upon the rails of a railway-track between the forward and rearward trucks of another or enginebearing car standing on the same track, which derrick-car is further provided with bridgerails extending from said track-rails over its front truck and from said front truck to and over its rear truck and to said track-rails in rear of said rear truck, whereby said enginebearing car may pass from said track-rails over the trucks of said derrick-car and return to said track-rails.

With this and other objects in view it consists of transverse sills normally supported above said track on vertically-yielding wheels, bridge-rails extending from the forward to the rearward sills, inclined rails extending outwardly from the tops of said sills to said trackrails, and aderrick-supporting frame erected on said sills.

It also consists of certain other constructions, combinations, and arrangements of parts, as will be hereinafter described and claimed.

In the drawings, Figure 1 is a side elevation of a car embodying said invention. Fig. 2 is a horizontal section of the same on the line y of Fig. 1, and Fig. 3 is a front elevation of one side of said car embodying said invention.

In the drawings, 1 and 2 are the track-rails of a railway-track upon which are adapted to roll wheels 3, mounted upon transversely-directed shafts 3a, journaled in vertically-yielding journal-boxes, as 8b, which boxes are positioned in and near the opposite ends of transversely-directed sills 4 and 5, which are normally supported thereon above said track. Each of said sills is preferably provided upon its outer face with inclined portions 6, ex-

tending outwardly and downwardly toward said track-rails, upon which inclined portions are secured or formed approach rails or ribs 7.

Upon said sills I erect a derrick-frame 8, preferably including supporting legs or brackets 9.

The construction thus far described is shown and described, together with additional constructions, in my application for United States patents for log loading and skidding machines, which application was filed in the United States Patent Oflice on or about the 23d day of October, 1903, Serial No. 17 8,184. In said application, however, I show an enginecar adapted to stand on said track-rails between the sills of the derrick-car. Inclined portions extending from the inner faces of the sills of said derrick-car toward the trackrails for the purpose of enabling said enginecar or other cars to travel from said trackrails over said sills are also shown in said application; but it is regarded as more or less undesirable to have inclined approaches on each side of each of said sills, for-the reason that a car passing over both of said sills must be raised twice at each end, or if said passing car be of great length it must be raised once at each end and again simultaneously at both ends. In my present invention I omit the inclined portions shown in said application extending from the opposingl faces of said sills to said track-rails and in lieu thereof form upon said opposing faces abutments 10, to which I secure in any suitable manner the oppositeends of bridge-rails 11, extending from one to the other of said sills in operative continuation of the upper ends of said rails. If desired, one or more transversely-directed rails or sills 12 may be secured to the lower faces of said bridge-rails intermediate of said sills 1 and 2 and extending downward to the plane of the lower faces of said sills 1 and 2. It will now be seen that a car crossing over said sills need only'be raised once at each end and that the consequent wear and tear on each of the cars and on the means for moving said passing car is diminished. My present invenembodied is adapted to stand between the forward and rearward trucks of the engine-bearing car shown in said application Serial No. 17 8,184, certain portions of the constructions shown in said application being rst suitably lengthened, shortened, or transposed to suit the requirements for inserting the trucks or sills of the derrick-car between the forward and rearward trucks of the engine-car and in such manner as will readily suggest itself to any one skilled in the art and without departing from the spirit and scope of my invention as therein claimed.

Having now described my invention, what I claim, and desire to secure by Letters Patent, 1s-

In a car, the combination of transverse sills adapted to extend over the parallel rails of a railway track, vertically yielding journalboxes mounted in said sills, supporting- Wheels normally adapted to roll upon said track and mounted on shafts journaled in said boxes and adapted to recede within said sills sufficiently to lower said sills to the track when abnormal Weight is borne by said sills, inclined approaches extending from the forward face of the forward one of said sills toward the track-rails, inclined approaches extending from the rearward face of the rearward one of said sills toward the track-rails, and bridge-rails mounted upon and extending over the forward said approaches and sill and to and over the rearward said approaches and sill, substantially as described.

In testimony whereof I hereunto aiiix my signature in presence of two witnesses.

MICHAELl SCHMALTZ. Witnesses:

JAMES T. WATSON, WELLINGTON M. BLEWETT.

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