US305533A - pennock - Google Patents

Description

(No Model.) 3 Sheets-Sheet}.

S. PENNOGK.

ROAD GRADER.

Patented Sept. 23, 1884.

'WITNESSES:

N. PETERS Pl'wRo-Lilhomphw. Washington, a. c.

3 Sheets-Sheet 2.

(No Model.)

S.PENNOOK. ROAD GRADER.

No. 305,533.: Patented Sept. 23, 1884.

3 SheetsSheet 3.

(No Model.)

S. PENNOGK.

ROAD GRADER.

mysostss.

Patented Sept. 23,1884.

Jim, m

INVENTOR mod WITNESSES:

I 17 ll Miran Snares ATENQT rrren- SAMUEL PENNOGK, OF KENNETT SQUARE, PENNSYLVANIA, ASSIGNOR TO THE S. PENNOCK & SONS COMPANY, OF SAME PLACE.

ROAD=GRADER.

SPECIFICATION forming part of Letters Patent No. 305,533, dated September 23, 188%. Application filed February 1, 1S84. (No moddl.)

To all whom it may concern.- V

Be it known that I, SAMUEL PENNQOK, a citizen of the United States, residing at the borough of Kennett Square, in the county of 5 Chester and State of Pennsylvania, have invented certainnew and useful Improvements in Road-Graders, of which the following is a full, clean, and exact description, reference being had to the accompanying drawings, of which 7 Figure 1., Sheet 1, is a plan view of a roadgrader in which my improven'lents are embodied, the scraper being at its extreme outward projection. Fig. 2, Sheet 2, is an off side elevation of the machine. Fig. 3, Sheet'3, is a near side elevation thereof. Fig. 4, Sheet 1, is a detail of the side'thrust resistance-wheel. Fig. 5, Sheet 2, is a side view, enlarged, of the adj ustablelever, rack, and toothedsegment device for imparting vertical movement to the scraper; and Fig. (3, Sheet 3, is a detail showing one of the detachable flange-pieces secured to the rim of the nearhind wheel of the machine. i

This invention relates to that general class of road gradingor mending machines in which the scraper-bar is connected to framework mounted upon wheels. Such machines are shown and described in my Letters Patent of the United States No. 10,023, of Reissued Patent, dated January 31, 1882, and No. 27 0,693, of January 16, 1883.

The object of the present invention is more especially to improve the construction of .the said patented machines in several particulars without affecting their essential features or principles of operation.

These improvements relate, first, to means for imparting, at the will of the operator, an

4o independent longitudinal or'diagonal move ment to the scraper, whereby the latter, or

rather the bar to which it is secured, may be readily shifted or regulated while the machine is in motion, or otherwise, so that the forward end of the scraper may be projected a greater or less distance beyond the path of the adjacent or offwheel of the running-gear; secondly, to better means for securing, when necessary or desirable, resistance to the tendency of the draft to deflect the machine laterally; thirdly,

to adjustable mechanism for facilitating the act of raising or lowering the end of the scraper; fourthly, to certain minor details of construction of the machine, which will be set forth in j the course of this specification, and pointed out insome of the claims.

Referring now to the annexed drawings, in which the same letters of reference, where they occur in the several figures, uniformly indicate the same or corresponding parts, F is the 6 forked supportingframe, whose forward extension is connected to the front axle of the machine in the usual way, and whose real.- ward extension rests upon and is bolted to the axle A of the hind wheels, WV W; This frame, 6 together with its diagonalcross-bar d and the vertical standards '0 s, sustains the platform P, upon which the operator rides, and also the scraper-bar S",with the mechanism for nianip ulating the same in order to give to it the req- 7o uisite independent vertical and longitudinal movements.

The general construction and mode of operation of the devices for raising and lowering the ends of the scraper-bar are substantially simi- 7 5 lar to those heretofore employed by me, consisting of the hand-levers H H, connected to the scraper-bar by vertical bars VV, and pivoted, respectively, upon the standards 12 8. There was, however, in said previous arrangement no provision made for imparting a lateral or diagonal movement to the scraper S, which movement I found by experience to be desira ble under certain circumstances, so that the forward or leading end of the scraper might be projected beyond the line of the wheel NV, behind it, in order more especially to work up close to the usual ditch or depression at the edge of the roadway, thus permitting the ad jacent wheel to be kept a safe distance from 0 the edge of the ditch, so that it will not be apt to slide into the same. A means which I have contrived for securing such movement of the scraper is as follows The scrapenbar is provided with guiderods 9 near the ends thereof, 5 upon which rods slide the sleeves s of vertical supporting-bars V V, whose upper ends respectively connect with the short arms of the hand-levers H H, that are pivoted to the stand ards 'v s, respectively, the vibration of which Ioc levers raises or lowers the scraper. A red or pitman, r, connects the scraper-bar with the lower extremity of a vertical hand-lever, 11*, I made by it is effaced by the latter. Under which is pivoted on the side of the diagonal cross-bar d, and is provided with a springcatch interlocking with indentations in a segment, 0, whereby the lever may be locked in the several positions in which it may be hr wn- By e p at gthis verthescran er is thrown back or forth, as the case may be,

in the direction of its length. WVhe'n the lever is in the position shown in Fig. 1, the leading end of the scraper extends beyond the wheel W its full extent. .These movements of the scraper may be effected while the machine is in motion, and also without interfering with r 5 the operation of the devices for imparting vertical movements to the former.

It is obvious that the extension and retractieh e e c aper may be nice y regulated at the will of operator standing upon the plat- 2 term to uit th c nt ur r d r etieh 0f h roadside or to avoid an obstruction.

Guide-h e b, fastened o he rear i o I the e erer-her and spann ng t e standa e ser e te'e d in e a n ng he scra er-ba n ,25 r e e aga ns h tres upon th lette wh the machine is doing work.

In order to counteract the side Shifting of the machine, owing to the diagonal position of th s ap pe ially wh Working clo e t 3Q the edge of the roadway, when otherwise there would be danger of the off wheel being forced into the ditch-or gutter, I provide a device Whieh may b thr w in and out of play a will. This consists of a wheel, X, with an ed e e et e u e, n rde tha s l e di y i n the g n Sei Whee i 'journaled in a frame, f, which is pivoted at the upper end to the bent short arm e of a han -l ve 1 t at i in tu n pivoted t the e d f the axle A, wh r y w en, ai eve is. he. ne sition, s in Fi s- .1 an t Wheel i5 depressed, so that its edge extends some distance below the periphery of the large Wh nd whe t le e is in. e t r PQihi0ni.e., threwnforward, as in Fig. 3,.. the wheel X is elevated above the ground, I

prefer to bend the short arm of the lever outwardly about at right angles to the long arm, and to pivot said lever on the rear side of the axle, so that W it i d w c nd whe l thrown down the short arm will stop against the axle Ju t after the r t d frame f h s passed under the center or pivot of the lever. In this way the wheel is kept well, in place in 5 5 the ground, yet may easily be shifted '0 its oleied position. A segment, z, with indentations on its side into which the long arm of lever H? locks, serves to retain the latter in position. The frame f is braced and stayed 6 by means of a lateral rod, m, and a transverse bar, m, attached or pivoted, respectively, to the frame F and the axle A. When the wheel X is thus depressed, it is obviously forced or cuts its way a certain distance into the earth, there- 6 5 by offering an extraordinary resistance to the side-thrust of the'machine. This wheel being in front of the scraper, the trackor furrow make use of these readily attachable and detachable flange-pieces in lieu of the flanged ring shown in my said Patent No. 270,693.

The feature of my present invention now to be described relates to the devices for giving vertical movement, more especially, to the forward end of the scraper, which requires a greater range'of movement than does the rear end! Consequently the throw of the long arm or handle ,of the operatingelever is such as is somet mes nconv nient t9 h oper tors e object, then, is to avoid the necessity of such long sweep of the lever in order to sufficiently raise or lower the scraper. This I attain, in the 7 present instance, by combining with said lever an independent adjustable toothed or pinion segment, S S, in conjunction with a toothed rack, T, on the side of the vertical bar whose lower end is connected to the forward part of the scraper-bar, as hereinbefore deselibed. The,

lever and segment both turn on the same pivot r e h e ide of the fi d up g t 11 that is a part of the main frame-work'of the machine. This segment has an arm or handle, 0, projecting therefrom, and also aseries of slots, q, in the im er side or periphery thereof, into any e f Whieh the hd f e p i e e tro le fi ger-catch, .c c,on the side of lever H, is adapted to lock, whereby the segment and lever are caused to work as a whole; but when the catch is retracted the two may be adj usted. with relation to each ether as circnmstancesmay require. I have added a small wheel or pulley, p p, jonrnaled in avertical frame, ff, and bearing against the front side of the rackrbar T, in order to aid in taking the strain, and to keep vertical play. Finally, in lieu of the curved plow attachment to be used in connection with y grade ssh n y ea h tent N 2 70,693, I now provide a metallic bar or strip, V, secured to the main frame of the machine, and running along the rear edge of the platform P, as seen in Fig. 1. This strip serves to brace the latter, and is provided with a series of holes, j, designed for the reception of the hook h h of a plow-clevis in case it may be desired to employ a plowin connection with the grad Having thus described my invention, I claim as new and wish to secure by Letters Patent.-v

1. In a road-grader of the described class,

the combination, with'the scraper, of means, substantially as shown, for imparting independentlongitudinal movement thereto, as and for the purpose set forth.

too

IIO

the rack up to its work, yet allowing its free 2. In combination withithe suspended'scrap er, the pivoted hand-lever connected thereto and arrangedto operate the scraper longitudinally, substantially in the manner and for the purpose stated. I i

3. The scraper suspended to the verticallymovable bars, so as to be capable of being reciprocated in the direction of its length, with means for imparting such movement thereto, together with means, substantially as described, for raising and lowering said bars, and consequently the scraper, all combined, constructed, and adapted to operate substantially as and for the purposes set forth.

4. In a roadgrader of the class recited, the scraper provided with mechanisms constructed and operating substantially as described, whereby said scraper may be moved independently, either in a longitudinal or a vertical di; rection, or in both directions at the same time, if desired, while the machine is in motion or otherwise, as and for the purpose set forth.

5. Ina road-grader, the combination, with the diagonal scraper suspended from the framework of the machine, of the resistance-wh eel X, when placed in front of the scraper, with means for depressingand elevating the same, substantially as and for the purpose described.

6. In combination withthe diagonalscraper secured to the frame-work upon wheels, the resistance or penetrating wheel X, j on rnaled in a frame that is attached to the short arm of a hand-lever,which lever is pivoted. on the side of the axle or equivalent support, said short arm being formed and placed with relation to the axle as shown, whereby it stops against the latter justafter it has passed a vertical line through the pivot on which the said lever turns, all constructed and adapted to operate substantially' as and for the purpose specified.

7. In combination with the diagonally-suspended scraper and the wheels W W, the attachable and detachable flange-pieces K, secured to the rim of wheel W, as and for the purpose specified.

8. The scraper, the vertical bar connected thereto, the toothed rack, the independent toothed segment, with an arm or handle extending therefrom, the lever H, pivoted concentrically with said segment, together with the slots or stops q,and catch 00, all combined, constructed, and adapted to operate substantially as and for the purpose stated.

9. In combination with the platform P, the brace-strips U, provided with the perforations j, as and for the purpose specified.

In testimony whereof Ihave hereunto affixed my signature this 21st day of January, A. D. 1884.. v

SAMUEL PENNOGK.

WVitnesses:

W. A. PIERCE, WILLIAM W. POLK.

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