US333572A - Machine for making - Google Patents

Description

(No Model.) 4 Sheets-Sheet 1. e. W. TAFT.

MACHINE FOR MAKING, REPAIRING, AND CLEANING ROADS.

No. 383,572. Patented Jan. 5, 18 86.

WITNESSES A INVENTEIR N. PETERS. Phalmlnhog nphcn Wnshingwn. u. c.

(No Model.) 4 Sheets-Sheet 2.

G. WITAPT. MACHINE FOR MAKING, REPAIRING, AND CLEANING ROADS.

No. 333,572. Patented Jan. 5, 1886.

g N N 1 .m

1 HHIIIII mm!\lllllllllllllllllllllllllll "e w m w I R WITNEEIEEE INVENTEIR N. PEYERS PholmLilhognphcr, Washington, D. C.

(No Model.) 4 Sheets-Sheet 3.

. G. W. TAFT.

MAGHINHFOR MAKING, REPAIRING, AND CLEANING ROADS.

No. 333,572. Patented Jan. 5, 1886.

WIINEEEESI INVENTEIR.

N PEYERS. Phm-Limu n ner. WaINnginn. E. El

(No Model.) 4 Sheets-Sheet; 4.

G. W. TAFT.

MACHINE FOR MAKING, REPAIRING, AND CLEANING ROADS. No. 383,572. Patented Jan. 5, 1886.

n. PETERS. Main-Lithographer. wmm. n.0,

UNITED STATES PATENT OFFICE.

GEORGE WV. TAFT, OF ABINGTON, CONNECTICUT.

MACHINE FOR MAKING, REPAIRING, AND CLEANING ROADS.

SPECIFICATION forming part of Letters Patent No. 333,572, dated January 5, 1886.

Application filed June 1, 1885. Serial No. 167,219.. (No model.)

To aZZ whom it may concern:

Be it known that .I, GEORGE W. TAFT, a citizen of the United States, residing at Abington, in the town of Pomfret, in the county of Windham and State of Connecticut, have invented certain new and useful Improvements in Machines for l\Iaking,Repairing,and Clearing Roads; and I declare the following to be a description of my said invention, sufficiently full, clear, and exact to enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

, My present invention relates to that class of road-machines in which the scraper mechanism is mounted in connection with a body or carrying frame supported by front and rear axles and travelingwheels, and adapted for oblique or diagonal adjustment in relation tothe line of draft.

The objects of my present improvements are to provide in a road-machine a diagonally-reversible scraper bar or blade having push-bars in rear thereof for sustaining the strain on the ends of said blade from the rear axle or back part of the carriage and capable of ready adjustment; also to provide means for adjust-ably connecting said push-bars in a manner that will permit of their releasement to accommodate the reversal or adjustment of the scraper to its several working positions;

' also to provide means for the convenient locking and unlocking of the push-bar-holding mechanism at the pleasure of the operator from his position on the machine; also to provide in combination with the carriage and diagonally-reversible scraper-blade sustained by pushing-supports at the rear thereof, a turn-table, pivot-beam, or swingframe from which the blade is suspended; also to provide a hand-wheel and gear mechanism, in

connection with said swing-frame, for effecting vertical adjustment of the blade or scraper and its push-frame independently at either end thereof; also to provide an improved"handwheel and gear-segment operating mechanism for manipulating and adjusting scrapers or blades in road machines; also to provide means for conveniently stopping, holding, and releasing the lifting mechanism, and,'gencrally,

to perfect and improve various details of construction and operation in machines of this class, as hereinafter more fully explained. These objects I attain by mechanism the nature, construction, and operation of which are illustrated in the drawings, and explained in the following description, the particular subject-matter claimed being hereinafter definitely specified.

In the drawings,

invention. Fig. 2 is a side view of the same, the rear corner being in section the better to show construction of under parts. Fig. 3 is a transverse vertical section in rear of the scraper looking toward the front of the machine. Fig. 4 is a sectional plan view of the rear axle, push-bars, blade, and blade swinging appliances. Fig. 5 is a view similar to Fig. 3, but showing some modification in the Figure l is a plan view of a road-machine embracing the features of my brake device, and in manner of attaching the elevating-bars, push-bars, and chains with the I blade. Fig. 6 is a plan view of the swingframe and brake-bar as shown in Fig. 5, and Fig. 718 side view showing a modification in manner of detachably securing the push-bars at the axle or rear part of the carriage.

In referring to parts, A denotes the carriage, body, or frame, B and B indicate the traveling-wheels, and E E the axles on which said body is mounted. The forward axle, E, isprovided with suitable tongue and draft appliances, E for the attachment of the team for drawing the machine in the usual manner. The rear ends of the carriage-timbers are connected with the rear axle, E, by suitable castings and bolts at a. The axle E is in the pres ent instance made as a round shalt, and is rigidly held in the frame-supporting castings; The V-shaped thrust-frameC is provided with hearings or eye-castings that fit over the axleshaft, so as to allow said frame to swing thereon as the bladeis raised andlowered. lf other form of axle is desired, the rear ends of the thrust-frame C may be attached by any suitable hinge connection, or as shown in my former Letters Patent No. 276,093. The scraper or blade Dis preferablya curved steel platewitharemovable re-enforce on its working edge,,although a scraper of any suitable shape may be used, and, if desired, the scraper may be furnished with a plow-point or with an adjustable wing-plate, or both, as shown in my former Letters Patent N 0. 315,184. This scraper-blade D is connected at its central lower part to the forward end of the thrustframe 0 by a pivot-joint, cl, that gives free movement for the diagonal and inclined adjustment of the blade. The hinging for back- Ward and forward pitch of the blade may be on the same joint-piece or adjacent thereto. As a pivot-joint device for the attachment of the blade and thrust-frame in a road-machine is shown, described, and claimed by me in a separate application for Letters Patent, (see Serial No. 173,968,) it need not be more particularly herein described.

F F indicate adjustable push-bars, the forward ends of which are hinged or universally jointed to the rear lower part of the blade D, at or near the ends thereof, as indicated at d. Said push-bars extend backward beneath the rear end of the machine, and are suitably supported by anti-frictional bearers at 6, so as to slide longitudinally forward or back as the .blade is reversed or swung horizontally to different positions of adjustment, and suitable means are provided at the junction of said push-bars with the carriage or its axle E for looking or detachably fastening said push-bars at their various positions of adjustment, so that they will sustain the rearward strain on the blade when the machine is at work.

In the present instance the locking devices consist of latch dogs or pawls I, pivoted on the axle E in a manner to swing up and down, and engaging with lugs or notches f formed on the bars F F at positions eorre:-:ponding with the several adjustments required for the blade at either right or left diagonal and at a central position or squarely across the machine.

Combined with the dogsI or push-bar-locking mechanism I arrange devices whereby the operator from his position on the machine or platform A can at will effect the release of the bars F F to permit the reversal adjustment of the blade D from one position to another, as may be desired. This releasing mechanism may be made, as indicated, with levers J, fulcrumed on the carriage-frame or under side of the platform, and connected at one end with the dogs I, and at the other with a foot-pedal, K, by depressing which the dogs will be disengaged from the bars F. Suitable springs, 8, may be employed for pressing down the levers or dogs to prevent them from jarring out of place when the machine is at work.

Upon the carriage or body frameA there is arranged a turn-table or swing-frame, G, the ends or arms G of which extend outward above the respective arms of the blade D, and the ends of said blade D are respectively suspended from adjusting mechanism mounted on said swing-frame and arranged for independently lifting or depressing either end of the scraper.

H H indicate the suspending rods 'or bars for supporting and adjusting the blade vertically. Said bars are arranged to work up and down through suitable guides at or near the ends of the swing-frame G, their lower ends being linked to the blade D, as at h, or in other suitable manner, so as to give a flexible joint, while their upperportions are provided with connecting gears or racks it, that engage with pinions or lifting-wheels L, supported by short shafts or journal-studs Z in suitable bearings, m, above the swing-frame G. Antifriction rolls may be arranged at the back of the rack-bars H, for guiding and supporting them in contact with the pinions L. Rigidly connected with each of said pinions orliftingwheels L, and turning on the same axis, is a large gear-segment, M, the peripheral circle of which is adapted for engagement with a small gear or pinion, N, that is connected with and is operated by a hand-wheel, N, arranged as indicated. The gears N and hand-wheels N are connected to each other, or are fixed to the respective ends ofshort shafts or bearingstuds mounted to turn in bearing on the standards n, which latter are fixed upon the swingframe G. Said standards support the mechanism at a position where the rims of the hand-wheels will be at a height convenient for the hand of the operator. The handwheel and gears are in the present instance arranged to work in planes parallel with the length of the swing-frame G, one set toward the right and the other toward the left, so as to bring the hand-wheel rims at the back of the turn-table or swing-frame and convenient for the operator standing on the platform A.

At the rear edge of the swing-frame Gstops or brake devices P are arranged for engaging the hand-wheels N for looking or holding the mechanism in position. Said brakes may consist of a pad, bearing-piece, or latch-dog b. connected with a rocking shaft, P, journaled in bearings on the beam G, and provided with a torsional or coiled spring, P, for pressing the dog or pad against the rim of the wheel. A suitable pedal is provided in connection with the brake or stop, to enable the operator to throw off the brake and release the mechanism by pressure thereon with his foot.

As a modification,the brake device may be made as a long bar or flat spring extending from one wheel N to the other, and centrally supported by three studs projecting from the beam G in a manner to cause the ends to press up against the rims of the wheels N, the brake being released by pressing down the end thereof with the foot. The suspending-bars or racks are in the present instance located so as to mesh with the inner side of the pinions L, or at the same side of the axis as the segments; but, if desired, they might be arranged at the opposite side. This would simply change the direction of movement of the segment when lifting the blade.

I 0 As another modification, if desired,the handwheels N could be disposed to stand crosswise of the turn-table G, or at right angles to the plane of the gear-segments M. The pinion and segment gears in that case would be made as bevels, instead of spur-gearing. I prefer, however, the relative arrangement shown.

The hand-wheel, gear-segment, and pinion mechanism operating as set forth may be em ployed for manipulating the blade or scraper devices in a road-machine of other construction than the one herein illustrated with beneficial results, and I include such use as within .the scope of my invention.

Attached to the blade D, which is hinged at d d for backward and forward pitch or tipping action, is a lever, B, the moving end of which extends to a position within reach of the operator, and which enables him to vary the forward and backward inclination of the blade D, and a recessed rack or segment, R, or other suitable device is combined therewith in a manner to retain said lever, together with the scraper-blade, at different degrees of pitch adjustment. The rack or locking bar R isin the present instance arranged through a seat in the lever B to serve as aguidetherefor, and it is pivoted to the swingingframeG in a manner to permit its series of recesses or lugs to catch onto a bolt or lug in said lever B. The rear end, 1*, of the locking bar R is in position to be depressed by the foot of the operator when he desires to release the lever R for changing-the adjustment, which is done by raising the bar out of engagement with the interlocking lug, and rocking or pitching the scraper or blade forward or back by means of said lever-R. The. end of the lever B which connects with the blade D may be attached witha holding bolt and loop, as indicated, so that either end of the blade D can be raised without imparting a sidewise movement to the lever.

Tindicates an upright shaft supported in suitable bearings at the rear of the pushframe 0, having at its upper end a handle or Wheel, T, for turning it, and provided below with a sprocket wheel or sheave, T for engaging the links of a ehain,V,which passes around said wheel T and has its ends respectively connected .with the blade or reversible parts of the scraper mechanism, so that revolution of the hand-wheel T by the operator willdraw upon the chain and swing the scraper-blade D horizontally to different positions of adj ustment, accordingly as the wheel is turned to the right or left. The ends of the chain V may be attached directly to the blade D or to the hinge-pieces d, or to the push-harsh, suspending-bars, or the swinging frame, assuch .parts move with the blade, and draft on the chain will effect the oblique adjustment of the scrapermechanism. Said chain may pass to the'wheel T either above or below the bars of the thrust-frame.

The operation of my improved machine for 'making road is as follows: The machine is drawn over the road or ground to be worked by horses or cattle attached thereto in the ordinary manner. The driver occupies the seat X, and the attendant stands upon the platform A. For raising or depressing theend ofthe blade, the attendant takes hold of the rim of the hand-wheel N, places his foot upon the brake or stop pedal P, and as the stop is relieved from the rim he gives the wheel a turn in proper direction and to the required extent, and this movement being transmitted by the gearing tothe bar H effects the desired adjustment of the blade up or down, accordingly as the wheel is revolved toward the right or left. To horizontally reverse or change the diagonal adjustment of the scraper, the attendant places his foot upon the pedal K, the

depression of which releases the push-bars.

bear the same relation to the scraper-blade at all positions of its adjustment.

In lieu of making the push-bar lock with a dog that swings up or down from the. bar F, thelocking parts may be arranged so as to have the push-bar itself moved to andfrom the catch-dog, or so that the lugs will clutch with that portion of the axle on which the strain is borne. This can be effected by a dropping and lifting guide for supporting said bar F, the same being actuated by a crank or lever counect-ion under control of the attendant.

The adjustable push-bars F and their detachable fastening devices may be used with beneficial result in roadmachines wherein the bladelifting mechanism is ofother construction than that herein illustrated, and I desire to include such use within the scope of-my invention.

The push-bars, turn-table, adjusting gear, and suspending mechanism,arranged as herein shown and described, may be employed with a scraper-bar carrying a series of points or srariliers as well as with a smooth-edged scraper'blade.

vI am aware that a road-machine has hereto.- fore been patented (see Patent N 0. 160,535) in which a V-shaped thrust-frame, a turn-table, and a diagonally-reversible scraper are. employed, and I do not therefore herein make claim to such features, except as combined with other devices which I have applied in connection therewith. e

I have in a separate application for Letters Patent (see Serial No. 164,547,) described. a system of non-adj ustable push-bars as adapted for use in a stiff-angled or non-reversible road-machine. Therefore it will be. underrelation to the direction of draft. i

What I claim as of my invention, and desire to secure by Letters Patent, is

1. In a road-machine, the'combination, sub stantially as hereinbefore described, with a diagonally-reversible scraper bar or blade, of adjustable pushbars adapted for sustaining the ends of said scraper from the rear and permitting adjustment thereof to either right or left oblique position.

2. The combination, substantially as hereinbefore described, of a diagonally-adjustable scraper suspended beneath a carriage-frame mounted on front and rear axles and wheels, adjustable push-bars extending from the ends of said blade to the rear of the carriage, and means for adjustably fastening said push-bars at their junction with the carriage.

3. In a roadmachine, the combination, substantially as hereinbefore described, of a carrying-frame mounted on front and rear wheels, a thrust-frame in rear of the scraper, a diagonally-reversible scraper centrally pivoted at the front of said thrust-frame, and adjustable push-bars connected at their front ends with the respective ends of said scraper and detachably connected at their rear to the carriage or axle of themachine, for the purpose set forth.

4. In aroad-machine, the combination, sub stantially as described, with a carrying-frame mounted on front and rear wheels, a verticallyswinging V-shaped thrust'frame hinged upon the rear axle, and a horizontally-adjustable scraper pivoted on said thrustframe and suspended from adjusting mechanism mounted on the carriage, of longitudinally-adjustable push-bars hinged to the respective arms of said scraper, and locking devices detachably connecting said push-bars with the rear part of the machine, for the purposes set forth.

5. In a road-machine, the combination, substantially as described, ofa diagonally-adj ustable scraper bar or blade, adjustable pushbars sustaining the respective ends of said scraper from the rear, locking devices detachably engaging said push-bars at the several positions of their adjustment, and disengaging levers or means for releasing said pushbars in convenient reach of the operator from his position on the platform of the machine.

6. -In a road-machine, the combination, substantially as described, ofa diagonally-reversible scraper-blade suspended beneath a carriage or body frame mounted on wheels, adjustable ,pnsh-bars sustaining the respective ends of said scraper from the rear, lockingdogs engaging and detachably securing said pushbars at their junction with the carriage or axle, actuating-levers connected with said dogs, and the foot-pedal connected with said levers, for the purpose set forth.

a 7. In a road-machine, the combination of the carrying-frame, the V-shaped thrust-frame, the diagonally-reversible scraper pivotally attached thereto, the adjustable push bars hinged to the endsof said scraper and provided with recesses to receive engaging-lugs, the rear axle, consisting of a round shaft to which the thrustframe is hinged, and devices for attaching and detaching said,pushbars therewith under control of the operator, as set forth.

8. In a road-machine, the combination, substantially as described, of a carriage-frame mounted on wheels, aswinging frame or turntable mounted on said carriage, a diagonallyreversible scraper suspended from lifting and adjusting mechanism mounted upon said swinging frame, a central thrust-frame pivotally connected at its front end with said scraper and hinged at its rear to the carriageaxle, and side push-bars hinged to the ends of said scraper and detachably connected with the carriage-axleby fastening devices under control of the operator, for the purposes set forth.

9. In a road-machine, the combination, substantially as described, with a diagonally-adjustable scraper and the scraper-supporting bars, of the pinion, the segmentgear connected with said pinion, and the hand-wheel and pinion, for the purpose set forth.

10. In a roadmachine, the combination, substantially as described, with a carriageframe mounted on wheels, of a swinging frame centrally pivoted thereon, a vertically-adjustable V-shaped thrust-frame, the diagonallyreversible scraper pivotally connected to the front end thereof, adjusting suspending-bars connecting the ends of the scraper with lifting-gears supported on the respective arms of the swing-frame, and the gear-segments, pinions, hand wheels, and brake mechanism mounted on said swing-frame in respective right and left order for independently adjust- 1 IIO pinion engaging said gear-segment,and ahandwheel fixed to said second pinion for imparting motion to said mechanism for adjusting the scraper, as set forth.

12. In a road-machine, the combination,

with an adjustable.scrapenblade provided with a hand-wheel (or hand-wheels) for operating the blade-adjusting devices thereof, of a stop device that engages with said wheel for retaining the wheel and scraper at position of adjustment, substantially, as set forth.

13. In a road-machine, the combination, substantially as hereinbefore described, of a diagonally-adjustable scraper-blade pivoted to a vertically-adj ustable push-frame, an upright shaft supported'on said frame and provided with a sprocket wheel or sheave, and a chain passing around said wheel or sheave and connecled at its ends with the respective arms of the blade, and a hand device for operating said shaft from the platform of the carriage, for the purpose set forth. 1

- 14. In a road-machine, the combination,

substantially as described, of a V-shaped thrust-frame sustaining the blade from the rear of the machine, a diagonally-reversible scraper-blade pivotally connected to said frame, a hand-shaft and sprocket-wheel supported in connection with said frame, and a chain engaging said sprocket-wheel and having its ends connected with the blade, respectively at the right and left of its pivoted center, for the purpose set forth.

15. In a road-machine, the combination, substantially as described, of a carriage-frame. a diagonally-reversible scraperblade, rearwardly extending longitudinally-adjustable push-bars connected with the ends of said blade, a hand-shaft and sprocket-wheel, a shifting-chain engaging said sprocket and having its ends connected with the respective ends of the blade, and devices for detachably fastening the mechanism with the blade at different positions of diagonal adjustment.

16. In a road-machine, the combination, substantially as described, of the carryingframe mounted on front and rear wheels, the swing-frame pivoted on said carriage for right and left diagonal adjustment, a scraper suspended from the arms or ends of said swingframe by racks and gears, and hand-wheels for imparting motion thereto for raising and lowering the end or -ends of the scraper, and brakes or stop devices adapted to be operated by the foot engaging with said wheels, substantially as set forth.

17. In a road-machine, the combination, substantially as hereinbefore described, of the carriage, the turn-table or swing-frame, a diagonally-adjustable scraper-blade suspended therefrom, and alever for controlling the pitch adjustment of said blade.

18. In a road-machine, the combination, substantially as described, of the carryingframe mounted on front and rear wheels, the swing-frame supported thereon for right and left diagonal adjustment, the scraper-blade suspended therefrom and hinged for backward and forward tipping action, a thrustframe sustaining the blade from its rear, and a lever and locking device connected with the swinging parts for adjusting the pitch of said blade, as set forth.

,19. The combination, substantially as described, with the scraper-blade adapted to have independent vertical adjustment at either end and hinged for forward and backward pitch adjustment, of a pitchadjusting lever attached to said blade by a pivot adapted to permit such vertical adjustment without imparting sidewise action to the pitch-adjusting lever, as set forth.

20. In a road-machine, the combination, substantially as described, of the adjustable scraper-blade D, the longitudinally-adj ustable push-bars F, and guides 6, adapted to sustain the rear part of said push-bars, as set forth.

21. The combination, substantially as described, with the swing-frame G and handwheels N, of brake mechanism I, arranged on said frame for operation as set forth.

22. In a road-machine, havinga diagonally and vertically adjustable scraper, the combination, with mechanism by which the scraper is suspended or adjusted, of a hand wheel and pinion, N N, gear segment and pinion M L, and a rack, as h, meshing together for action as set forth.

Witness my hand this 26th day of May, A. D. 1885.

. GEORGE \V. TAF'I.

\Vitnesses:

CHAS. H. BURLEIGH, FRANK L. WHEELER.

Images