US1335906A - Road planing and finishing machine - Google Patents

Description

O. E. MOATS.

ROAD PLANING AND FINISHING MACHINE.

APPLICATION FILED AUG. I8, 1915.

1,335,906. I 1 Patented Apr. 6, 1920.

l 5 SHEETSQSHEET 1. k W

ynz/nforl $9 444 Wu;

I 0. E. MOATS.

ROAD PLANING AND FINI'SHI NG'MACHINE.

APPLICATION FILED AUG. 18. 1915.

v 1 335 90 Patented Apr. @1920,

5 SHEETSSHEET 2.

0.. E. MOATS.

ROAD PLANING AND FINISHING MACHINE.

APPLICATION FILED AUG. 18, I9 I5.

Patented Apr. 6,19%.

5 SHEETS-SHEET 3.

0. E. MOATS. RQAD PLANING AND FINISHING MACHINE; APPLICATION FILED AUG-BI 1915.

1,335,90 7 Patented Apr. 6, 1920.

5 SHEETS-SHEET 4- 0. E. MOATS.

ROAD PLANING AND FINISHING MACHINE.

APPLICATION FILED AUG-18,1915.

1,335,906, Patented Apr. 6, 1920.

9 5 SHEETS-SHEET 5- Tr f- 92 101 5 1 mmumua: 92 O D f JrLz/en for" is a specification.

WITED cur-Es omus E. Mom's, on CHICAGO, ILLINOIS, .ASSIGNORVTQWESTERN WHEELED somrnn COMPANY, OF AURORA, ILLINOIS, CORPORATION OF ILLINOIS.

ROAD PLANING AND FINISHIN G MACHINE.

To all whom it may concern: 1

Be it known that I, OR'IUS E. MoA'rs, a

citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful-Im rovements in Road Planing and Finishing achines,'ofwhich the followlng My invention relates to road making ma chines, and has for its object to provide a new and improved machinevwhich will be well adapted to smooth, crown and rolla 7 road so as to leave it in a finished condition. To this end, it contemplates a machine providedwith extensible scrapers which project laterally from. both sides of the machine frame and are" adjustable to any desired angle, and also to be folded or withdrawn under the frame of the [machine so that the -machine may readily be moved-from place to place. It also contemplates the provision of a scarifier cooperating with such scrapers to break up or loosen the hard center of the road and enable the scrapers to properly level" and smooth it. It further contemplates the provision'of a roller adapted to roll the road after the scrapers have passed over it 7 crowning roller, parts ofthe main and at the same time give it theproper crown. In connection with thesegeneric features my invention also includes mechanism by which the various adjustmentsof the scrapers, scarifier and roller may .be

efficiently accomplished, all of which is here-' i inafter described. I In the accompanying drawings- I Figure l'is a side elevationof my improved machine; i

Fig. 2 is an enlarged detail, being a partial vertical cross-section on line 22 of Fi 4; v ig. 3 is a plan view of the machine; Fig. 4 is a plan view illustrating the operating parts of the'machine which-"are 'carried under the main frameP-to-wit, the scrapers, the scarifier, and parts of the mechanism by which the scrapers are'adjusted and held in operating position;

Fig. 5 is an enlarged detail, section on line 55 of F 1g. 4;

Fig. 6 isfa cross-section on line 6-6 of being a crossp v v L y *ig. 7 is a rear view illustratingithe ame and roller supporting frame being insection;

Specification of Letters l atent.

.lated;

; Patented Apr. 6, 1920.

Application-filed August 1s, 191.5. Serial ml 46,122.

Fig. 8 is an end view of the crowning roller, showing mounted and the mechanism for operatin it;

ig. 9 isa view, partly in section, illustrating the mounting of one of the cranes by which the lateral scrapers are manipusubstantially as outlined in 'Fig.-3,that is to say, the rear portion of the frame ispref erably rectangular, as is also the'front end portion thereof, the latter being, however,

FFICE.

the frame in which it is :erably made up of I-beam material shaped considerably narrower than the rear end of the machine. The intermediate portion of the main frame tapers toward the front, as

' illustrated. It will be understood, of course,

that the shape of the frame may be varied as convenience may suggest. The rear portion of the main frame is supported upon wheels 14 mounted on spindles carried by an axle. 15, which, as best shown in Fig. 7, extends over the main frame and is'fixedly secured\thereto in any suitable way. V The frontnp'ortion of the frameis supported by wheels 16 mounted on an axle 17, which as best shown in F ig.' 1, carries a lower fifth wheel member 18. A tonguej19 is connected 1 .with the lower'fift'h wheel member by means of tongue-irons 20, in the usual way, so that the machine may be steered-by swinging the tongue and thereby swinging ,the front axle. The front end. of the main frame 13 is mounted on a bolster 21, which connects with, the upper member 22 of the fifth the two members of the -fifth wheel being pivotally connected together by a king-bolt, 23 passmg through bars" 2425 connected, respectively, with the lower'and upper members of the fifth wheel. 126 27 indicate supplemental bolsters between the forward portion of the main frame and the upp member 22 of the fifth wheel; and 28/indiwheel,

rates a draft-bar secured between the rear end of the bolster 27 and the upper member 22 of the fifth wheel, the king-bolt 23 extending through the forward end of said draft-bar. 29 indicates an arched bar which is secured on the forward endof the main frame, its end portions extending downward and outward therefrom and terminating, as

shown in Fig. 3, in supporting arms 30 in the form of hooks, the purpose of which is to support the forward ends of the lateral scrapers when they are folded, as will be hereinafter described.

At the rear ofthe machine and approximately in line with the rear wheels, is a crowning roller 31, which is disposed transversely of the machine so as to overlie the central portion of the road when the machine is in position to operate. The roller 31 is made up of a number of sections 31*, which are mounted on a shaft 32, as best shown in Fig. 7. These rollers are tapered and are so proportioneTD and mounted on the shaft 32 that together they form a roller having a concave surface which conforms to the crown to be imposed upon the road. Obviously, by changing the sections of this roller, the curvature of the roller as a whole may be varied, consequently varying the curvature of the crown of the road produced by the use thereof. The end portions of the roller shaft 32 are secured to a frame 33 pivotally connected, by forwardly -projecting draft-links 34 shown in Figs. 1 and 8, with the main frame 13, the pivots of said draft-links being shown at 35 in Fig. 1. By connecting the roller with the main frame at a point forward of its own axis, the draft is properly applied thereto, and the draft-links 34 being pivoted the roller can rise and fall. When the machine is in use it is'oftentimes desirable to apply as much pressure as possible to the roller, and to this end, I provide means by which the entire weight of the rear portion of the machine may be thrown. upon the roller supporting frame, and through it be applied to the roller. The construction by which this is accomplished is best shown in Figs.- 7 and 8. As therein shown, the rear axle 15 is provided with brackets 36 secured to the vertical portions. thereof, preferably by clamps 37. These brackets are provided with vertically-disposed sleeves 38 internally screw-threaded to receive the threaded portions of rods 39 having hand-wheels 40.

The sleeves 38 overlie the side portions of the roller frame 33 over the points where the endsof the roller shaft 32 are secured,

so that by screwing down the rods 39, their lower ends may be forced down upon the side members of the roller frame 33, thereby acting as lifting-jacks to raise the rear portion of the main frame and support it upon the roller supporting frame. By this means, great pressure may be applied to the .roller, and its efficiency in crowning the road be thereby greatly increased. In the be, thereby construction illustrated, the ends of the rods 39 do not bearhdirectly upon the frame 33 but upon short angle-plates 41 whlch are fitted upon the frame 33 under the lower ends of the rod 39 and over the rear end portions of the draft-bars 34,-these parts being bolted, or otherwise suitably secured, together. The plates 41 may be easily removed and replaced when desired. For the purpose of steadying the roller 31 and holding it against endwise movement, the brackets 34 are provided with downwardly-projecting arms 42 opposite the ends of the roller shaft 32 and in position to bear against the vertical portions of the angleplates 41, as shown in Fig. 7. Thus, when the roller frame moves vertically with reference to the machine frame, or the machine frame moves vertically with reference to the roller frame, the angle-plates 41 slide against the inner surfaces of the arms 42,

endwise movement. When desired, the roller may be raised'out of operative position, this being accomplished by means of chains 43 which are secured to the rear portion of the roller supporting frame 33, as shown in Figs. 1 and 8, and are adapted to be wound upon drums 44 carried by a shaft 45 mounted transversely upon the rear portion of the main frame 13, as shown in Fig. This shaft is provided with a worm wheel 46 shown in Fig. 3, which meshes with a worm 47, shown in Fig. 1, mounted on a vertical rod 48 having a hand-wheel 49. By rotating the hand-wheel 49 the shaft may be rotated, thereby winding up the chains 43 upon their respective drums, or ui'lwinding them, as the case may raising or lowering the crowning roller. Of course, when theroller is to be raised, the pressure rods 39 must be moved up sufficiently to p mit the roller to be lifted. 50 indicates sc apers which bear upon the surfaces of the several roller sections, said scrapers beingpivoted upon the roller frame 33, as shown at 51 in Fig. 8, and having arms 52 carrying weights 53 by which .the scrapers are yieldingly pressed against the surfaces of the roller sections. In advance of the crowning roller, the machine is provided with means for preparing the road for the final rolling operation. This mechanism consists principally of two compound scrapers adapted to be projected laterally at opposite sides of the machine at and the roller is steadied and held against a variety of angles'and provided with means v is pivotally secured a forked bracket-57 by ascrapers, and 56 indicates the scarifier; The

inner members 54 of the lateral scrapers are preferably considerably shorter than the outer members 55 thereof, and the members 5 of each scraper are pivotally connected topivot-bolt 58, sothat said bracket may rock I about a horizontal axis. The bracket 57 embraces an I-beam 54 which forms a part of the scraper member 54 and is pivotally con nected therewith by a vertical pivot-b01559,

pivot 59, and at their uncture they may also sal joint'or coupling.

as shown. Thus, the two members 5455 of each lateral scraper may swing in a horizontal plane to different angular positions with relation to each other, turning about the be swung vertically to different angular positions with relation'to each other, turningabout the pivot-bolt 58. In other words, they are connected by a substantially unlver- The rear end portlons of the'members 54 of the lateral scrapers are held in operative position and adjusted vertically by means of a hand-lever 60 mounted on the mam frame and provided with the usual segment 61and latch 62 for looking it indifferent positions.

The lever 60, as best shown in Fig. 12, is in the form of a bell-crank, its lower. arm 60 projecting forward and being connected by a bar 63 with an arch 64, the ends of which 121.18 connected with the rear end-portions of the scraper members 54, as best shown in Figs. 1 and 4. Thus, by operating the lever 60 the height of the rear endsof the scraper members 54' may be adjusted as desired.

The forward end portions of said scraper members 54 are held in position by bars "65,

the outer or rear ends of which are connected to the scraper members 54 by bolts 66, as

best shown in Fig. 6. As therein shown, the

bars 65, which are preferably double, are provided at their outer ends with stirrups 67 which rest upon ears 68 projecting from-the.

I-beams 54*, the bolts 66 passing through the members of the bars 65, through the st1r-,

extending draft-bar 70, which is also an,

rups 67, the cars 68, and through corresponding ears 69 secured to the lower flange of the I-beams '54. The forward or inner end of each bar 65 is secured to a longitudinally- I-beam, and issupported upon and secured to a cross-brace 7 0 in the mannershown in Figs. 2 and 4. As shownin Fig. 2, two bars 71-72, which together form a double-ended yoke, are secured upon the draft-bar 70 transversely/ of the machine, and the ends of the bars are secured'to saidyoke by pins 73. The scraper members 54 may be vertically adjusted-by means-of rock-shafts shown in Fig. 9.

and extending longitudinally thereof, as

shown in. Figs. 1 and 3. At their forward ends said rock-shafts are provided with crank-arms 75,0.onnectdby rods 76 with the I forward end portions of the scraper members 54. The rear ends of the rock-shafts 74- are provided. with worm-wheels 77 which v are operated by worms 7 8'shown in Fig. 3,

said worms being mounted on shafts 79 pro- Vided with hand-wheels 80. Thus, by ro tating the hand-wheels 80, the operator may adjust the forward ends of the scraper members 54 vertically, as desired. The adjust:

ment of the two scraper members 54 may be made simultaneously or separately so faras the-front ends thereof'are concerned, but thelr rearends being connected to the lever 60 are always moved together when said lever is operated. I I a It will be apparent that the rear or inner end portions of the scraper members 55, being. connected with the forward end portions of the scraper members 54, are also vertically adjusted by means of the handwheels 80. The'outer portions of said lateral scraper members 55 are vertically adjusted.

by means of chains, or other flexible connect'ions, 81, which are operated by two-- cranesmounted on the main frame of the .machine. As best shown in Figs. 3 and 9,

82 indicates an arch, the ends of which are secured to the side members of the machine frame 13 at a suitable intermediate point,

and 83' indicates a cross-beam which extends across the mainframe 13 opposite the lower ends of the arch 82. The arch 82 and loo beam 83 form \the upperand lower bearings Y for the masts 84 of two cranes, said mastsbeing of I-beam orother suitable construction. They are provided with upper and lower pivots 8586, respectively, as best of the cranes, which are secured to the masts 84 in any suitable way, their outer ends lasses 91 having worm-wheels 92 operated by worms 93 carried'by shafts 94 having hand-.

wheels 95, all as shown in- Figs. 9 and 10.

87 indicates the'booms' Thus, the drums orwindlasses 91 swing with the masts84 andibooms 87. The chains '81 are adapted to be wound upon the drums, 91, and consequently the chains always properlyv aline with the drums on which they I are wound. 96 mounted at the outer ends of the booms 87,-

- over which the chains 81 pass, and 97indicates rollers secured intermediatelyto. the

scraper members 55. As shown in Fig. 1', the outer ends of the chains8'1 are secured to the boom before passing around the rollers 96-97. Obviously, by rotating the hand- 65 74 mounted at the sides of the main frame wheel 95 at either side of the machine. the

indicates guidesrollersi corresponding scraper member 55 may be raised or lowered as desired, and the weight of each scraper may be sustained by its 99 being secured to the outer end portion of the scraper 55 by a pivot 103 in substantially the same manner as that described in connection with the bar 65 and scraper member 54. 104 indicates a link, the outer end of which is connected with the pivot 100, its inner end being connected by a pivot 104 with a sliding rack-bar 105' mounted in suitable guides 106 at the under side of the machine frame, as shown in 1. The rack-bar 105 is in mesh with a pinion 107 (see Fig. 4) which is carried at the lower end of a vertical rod 108 provided with a hand-wheel 109 at its upper end, as shown in Fig. 1. The arrangement of both sides of the machine is the same, and the parts are similarly numbered. Thus, by operating either hand-wheel 109, the'levers 9899 may be moved either to the position shown in Fig. 4 so as to project the scraper members 55 laterally, or they may be swung back to the position shown in Fig. 3, thereby folding the scrapers in the manner shown in the latter figure. When folded, the forward ends of the scraper members 55 are lifted into engagement with the hooks 30 so that the scrapers are then supported by said hooks and are held up out of the way so as not to interfere with the steering of the machine. The toggle construction described is very powerful and holds the blades properly in position when in operation, besides making it practicable to shift them under load. 1

The scarifier 56, as shown in Fig. 4, is lo.- cated centrally of the machine in advance of the inner scraper members 54. This scarifier has a V-shaped frame having a number of sharpteeth adapted to engage the surface of the road and break it up to a moderate depth so as to enable the scraping devices to level it off properly -to permit of its being smoothed by theroller. This scarifier is provided with forwardly-projecting draftbars .110 which at their forward ends are connected with vertically-slotted plates 111 shown in Figs. 1 and 4. By means of these slots, the plates 111 are connected to a draft-frame 112 by a pin 113 which passes through said slots. The forward end of the draft-frame 112 is connected by a pivot 114, shown in Figs. 1 and 4, to the draft-bar 28. Thus, the scarifier 56 receives the direct draft. The scarifier may be vertically adjusted and meanwhile maintained in a horizontal position by means of bell-crank levers 115-116 mounted on pivots 117-118, respectively, supported by the main frame 13, the upper arms of said levers being con nected by connecting-bars 119 shown in Fig. 1. The levers 115-.116 are rocked by means of a screw-threaded rod 120, which extends longitudinally ofthe machine, its threaded end passing through a threaded opening in the upper arm of the lever 116, as shown in Fig. 3, its rear end being fitted in a suitable bearing 121 and provided with a hand-wheel 122. The lever 115 is connected by connecting-rods 123 with the slotted plates 111, and the lever 116 is connected by connecting-rods 124 with the intermediate portion of the scarifier frame. Thus, by operating the hand-wheel 122, the levers 115-116 are rocked in unison, and consequently the scarifier may be raised and lowered. its horizontal position being maintained during the operation. 125 indicates chains connected with the outer portions of the bars and with the main frame 13 at a point in advance of the scraper members 54, as shown in Figs. 1 and 3, said chains serving to take the draft of said scraper members when in operation.

. 126 indicates a center scraper arranged centrally of the machine back of the inner ends of the scraper members 54. as shown in Figs. 3 and 4, said scraper being sup ported by bars 127 pivotally connected at their forward ends with the outer portions of the scraper members 54, as shown at 128 in Fig. 1. The scraper 126 may be verti-- cally adjusted by a lever 129 connected theretoby a rod 130, as shown in Fig. 1. The lever 129 is provided with the usual locking segment 131 so that the scraper 126 may be locked in its different positions of adjustment.

From the foregoing description, it will be apparent that the lateral scrapers may be projected at opposite sides of the machine so as to extend forward at a greater or less angle with the machine frame, and that when so projected. by reason of the fact that each lateral scraper is composed of two jointed members, the lateral scrapers may be adjusted to give the surface of the road the desired slope or crown. From time to time these scrapers may be adiusted while the machine is in operation, and when the ma chine is to be moved from place to place, they may be folded under the frame and placed out of the way, to permit the ma chine to be driven through comparatively narrow gates or along narrow lanes. When the machine is in use, the scarifier cuts up t e crown of. the road in advance of the scrapers and prepares it for the shaving and smoothing operations. By providing the horizontal lift for the scarifier and applying central portion of the road is scraped and smoothed by the auxiliary scraper 126, which, as has been described, may also be adjusted vertically to suit the varied conditions of the work. Finally, after the scraping operations, the road is rolled and crowned by the crowning roller, which, as has been explained, may be pressed down with all the weight of the rear portion of the machine. Either end of the crowning roller may be adjusted separately'so that its action may be cont lled to secure the best results. For transp rtation purposes, the roller may be raised out of contact with the ground, as has beendescribed.

That which I' claim as my invention, and desire to secure by Letters Patent, is,

1. A road machine comprising a main frame, scrapers arranged to project forward and laterally at each side of said main frame and to swing toward and from said frame, toggle mechanism for each of said scrapers adapted to be actuated to move said scrapers laterally, rack bars mounted onsaid main frame and operatively connected with said toggle mechanism, and means engaging said rack bars for movlng the same to actuate said toggle mechanism.

2. A road machine comprising a main frame, scrapers arranged to project forward and laterally at each side of said main frame and to swing toward and from said frame, inner and outer toggle members at each side of the machine pivotally connected together,

the inner toggle members being connected nected with said toggle members, rack bars with the main frame and the outer tog le members with said scrapers respective y, llIlkS at opposite sides of the machine conmounted on the machine frame and connected with said links, and separate means for operating said rack bars to adjust the position of said scrapers.

3. A road machine comprising a main frame, rear scraper members adapted to pro-' ject forward and laterally at opposite sides thereof, forward scraper members pivotally connected with the .outer erid portions of said rear scraper members and projecting forward and laterally beyond said rear scraper members, means for laterally adjusting said forwardiscraper members, a

longitudinally extending draft bar, and

means connecting said draft bar with the outer end portions of said rear scrapers.

4:. A road machine comprising a main frame, front and rear wheels supporting said frame, scrapers projecting forward and laterally at opposite sides of said frame, a roller carrying frame disposed centrally of the machine back of the inner end portions of'said scrapers, forwardly projecting draft links pivotally connecting said roller frame with said main frame, a shaft carried by said roller frame, a roller mounted on said shaft, and means at opposite sides of the machine frame for exerting downward'pressure upon the opposite side portions of said roller frame.

5. A road machine comprising a main frame, front and rear wheels supporting said frame, scrapers projecting forward and laterally' at opposite sides of said frame, a roller carrying frame disposed centrally of the machine back of the inner end portions of said scrapers, a shaft carried by said roller frame, a roller mounted on said shaft, and vertically movablescrew-threaded rods ,adjustably mounted at opposite sides of the rear portion of the main frame and adapted to bear upon vthe side portions of the roller frame for exerting downward pressure upon said roller frame.

6. A road machine comprising a main frame, front and rear wheels supporting said frame, scrapers projecting forward and laterally at opposite sides of said frame, a

roller carrying frame disposed centrally of the machine back of the inner end portions of said scrapers, forwardly projecting draft links pivotally connecting said roller frame with said main frame, a shaft carried by said roller frame,'aroller mounted on said shaft, and vertically movable screw-threaded rods adjustably mounted at opposite sides of the rear portion ofthe main frame and adapted to bear upon the side portions of the roller frame for exerting downward pressure upon said roller frame. v

' ORTUS E. MOA'IS.

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