US954252A - Traction-apron for ditching-machines. - Google Patents

Description

G. S. BROWN. TRACTION APRON FOR DITGHING MACHINES. APPLICATION FILED JUNE19, 1909.

954,252. Patent d Apr.5, 1910.

4 SHEETS-SHEET 1.

Q i I57] 7 i ii "a; Q x if? 15- O N 'I'l Z07 Wi /76w 6 3 I @6141. 3 ALLA/or WW 0. S. BROWN.

TRACTION APRON FOR DITGHING MACHINES.

APPLICATION FILED JUNE 19, 1909.

Patented Apr. 5, 1910.

4 SHEETS-SHEET 2.

c. s. BROWN. TRACTION APRON FOB. DITGHING MACHINES.

APPLICATION FILED JUNE l, 1909. I

954,252, Patented Apr.5, 1910.

4 SHEETS-SHEET 3.

In Venior 4 SHEETS-411E171 4.

G. S. BROWN.

TRACTION APRON FOR DITOHING MACHINES.

APPLICATION PILEDJUNE 19, 1909.

HuhuHF 1 a citizen of the United States, residin CHALMEBS S.'B1 OWN, OF FINDLAY, OHIO.

TRACTION-R3019 FOB, DIQCHING-MACHINES.

' Specification ot Lettei's Patent. Application filed June 19,1909. SerialNo. 503,247.

Patented Apr. 5, 1910.

To all whom it may concern:

. Be it known that I, CHALMERS S. BROWN, at Findlay, in the county of Hancock and tate of Ohio, have invented certain new and useful Improvements in Traiitio -Aprons for Ditching-Machines; 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 improvements in traction aprons for ditching machines, al-

though'it is not restricted to this specific use.

The object of my invention is to provide a strong and comparatively inexpensive structure carryingthe traction a ron, which may be substituted at any time or the ordinary driving wheel of a ditching or similar machine.

With this object in view, my invention consists in the construction and combinations of parts as-hereinafter described and.

claimed. 3 I

Inthe accompanying drawings-Figure 1 is a diagrammatic side view of a ditching machine showing my invention applie thereto. Figs. 2 and 2*, which are to be taken together, represent, in side elevation,

. chine of any ordinary or preferred form,

provided with an engine 2, a ditching wheel 3, and supporting standards 4.

5 represents the'traction shaft of the ma-.

chine, suitably supported'on the frame. On one end of this traction shaft is fastened one of the traction wheels, and on the other end is mounted a sleeve 6, attached to a part of the differential gear 7 and havin keyed to its outer end, by means of the icy 8, the driving sprocket wheel 9 for the traction apron.

From the construction described, it is clear that the whole traction a ron ma be easily removed from the mac ine an' an ordinary traction wheel substituted therefor.

Mounted on the sleeve 6 is a long box -10, rectangular in general shape and referably made of iron or steel. At one en this box is beveled inwardly, as shown at 11, Fig. 2 and to the other end is adjustably fastened an extension for the urpose of tightening the traction apron. extension consists of a smaller box 12, having a curved extension 13 over which the rollers of the traction apron pass, and having extensions 15 adapted to fit within the sides 16 of the box 10. Screws 17 passing through angle plates 18 and 19, are used or the purpose of adjusting the end 12 inwardly or outwardly. Set screws 20.are also provided for fastening the part 12 to the arms 15. The main box 10 is cut away as shown at 21, to provide access to the heads, of the screws 17.

The traction apron. proper consists of a series of angle bars 22, having projecting portions adapted to be engagedby rods 23.

24 represents wearing blocks, preferably of wood, bolted or otherwise secured to the plates 22. The rods 23 pass over the box 10 and engage the angle plates on each side of the box.

On each of the rods 23 is mounted a spool 25, having flan ed edges 26, as shown in dotted lines in ig. 3. These flanged edges are adapted to travel outside the sides 16 of the box 10. By this construction a single track is provided, and the spools 25 uide the entire traction apron. The spoo s 25 and the rods 23 may be made in'te ral, if desired, or in separate parts fastene together In bearings at one end of the box 10 is wheel 28, which is connected b a sprocket chain, indicated by the broken ine 29, with the sprocket wheel 9. On the shaft 27 is mounted a larger sprocket wheel 30, provided with teeth 31 adapted to engage successively the rollers 25, thereby moving the traction apron. One end of the box 10 is open, so that the teeth of this traction wheel may pass therein, and to strengthen the structure I have provided braces 32, runnin down to the bearings 33,'in which the sha 27 is mounted. Each of the rollers 25, as it passes oil the end of the box 10, will tend to fall, thus insuring the engagement thereof with one of the teeth on the sprocket wheel 30.

The operation is as follows: When the shaft 5 is revolved by means of suitable connections from the engine 2, the'difierential gear 7 drives the sprocket wheel 9, which in v to move faster or slower than the driving wheel, which is fastened to the other end of curved track, angle plates flexibly secured to the shaft 5, said spools .at each end thereof, wearing I claim blocks securedto said plates, and means for 15 A traction wheel, comprising a rectangudriving said sprocket wheel, substantially as 5 lar box 0 en at both ends, a sprocket wheel described.

jo'urnaled in bearings on one end of said In testimony whereof, Iafiix my signature,

box, ail extensim haiying a curgedftratakbadin presence oftwo witnesses. v

justab y secure to t e other en 0 sai ox,

means for adjusting said extension, a series CHALMERS BROWN 10 of flan ed spools adapted to travel along and Witnesses: be ui ed by the top and bottom edges of E. V. Born, sai box, by said sprocket wheel, and by said JOHN MAHONY,

Images