|Publication number||US484429 A|
|Publication date||Oct 18, 1892|
|Filing date||Mar 14, 1892|
|Publication number||US 484429 A, US 484429A, US-A-484429, US484429 A, US484429A|
|Inventors||James M. Holland|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (1), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
3 Sheets Sheet 2.
J. M. HOLLAND.
No. 484,429. Patented Oct. 18, 1892.
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3 Sheets-Sheet 3.
J. M. HOLLAND.
Patented Oct. 1.8, 1892.
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UNTTED STATES PATENT OEEICE.
.I AMES M. HOLLAND, OF MOUNT PLEASANT, IOWA, ASSIGNOR TO THE MOUNT PLEASANT ROAD GRADER COMPANY, OF SAME PLACE.
SPECIFICATION forming part of Letters Patent No. 484,429, dated October 18, 1892.
Application tiled March 14, 1892. Serial No. 424,881. (No model.)
To all whom. it may concern: longitudinally-opposite sides with registering Be it known that I, JAMES M. HOLLAND, a perforations 13. An inverted-V-shaped pin, 5o citizen of the United States, residing at Mount having an upper terminal 14 and a lower ter- Pleasant, in the count-y .of Henry and State minal 15, is mounted removably in the upper 5 of Iowa,haveinvented anew and useful Roadand lower openings, and a loop or handle 15 Scraper, of Which the following is a speciiicais connected to the upper terminal mentioned.l .mom This pin may be withdrawn from the stirrup 55 This invention relates to improvements in by the attendant mounted on the platform 5, road-Scrapers, the objects and advantages of and have its terminals inserted into any of io the same being hereinafter described, and the pairs of openings 13 of the stirrup. The more particularly pointed out in the claims. scraper-bar 11 is provided at its rear end with Referring to the drawings, Figure 1 is a an opening 16, and the same loosely receives 6o side elevation of a road-scraper constructed the rear terminal of the pin just described, in accordance with my invention. Fig. 2 is From this it will be obvious that the scraper- 15 a plan. Fig. 3 isalongitudinal section. Fig. bar moving upon its pivot, the king-bolt 7 4 is a detail in perspective of the scrapermay have its rear end swung laterally at a blade. Fig. 5 is a detail in perspective ofthe desired angle to the machine, and may there 65 locking-latch for the blade. Fig. 6 is a detail be secured by means of the in verted-V-shaped in perspective of the adjustable connection pin.
zo between the crank-arms and the supporting- Vertical bolts 17 pass upwardly through rods of the blade. Fig. 7 is a detail in perthe bar 11 and support above the bar an inspective of one of the scraping-wings. verted-U-shaped hood 1S, extending nearly 70 Like numerals of reference indicate like throughout the length of the bar 11. The parts in all the figures of the drawings. hood, being U-shaped in CFOSSSBCOD and be 25 In practicing my invention and in coning spaced from the bar 1l by reason of its structing the framework for the scraperl opposite [iangesbeing thus held out of com employ opposite pairs 0f longitudinally-dis tact with said bar, combines with the bar to 75 posed and parallel side beams 1, preferably of form opposite longitudinal slots 19. The bar angle-iron, mounting the front ends of the is provided at its front end at its opposite 3o same upon the bolster 2 and the rear ends sides with keepers oropenings 20, (bestshown upon pairs of standards 3. The rear standin Fig. 2,) and in the same take the dependards 3 are supported upon the rear axle 4, ing hooks 21, formed at the front end of the 8o and between the inner standards of the oplocking-latch 22. This locking-latch, which posite pairs there is located a platform 5. I have shown in detail in Fig. 5, comprises a 3 5 The bolster 2 rests upon the front axle 6, and pair .ofopposite parallel plates or anges 23,
a king-bolt 7 passes through the bolster and and 1t 1s at the front ends of these plates that axle, as is usual. The axles are provided the hooks 21 are formed. InvertedU-shaped 85 with ground-wheels 8, and the front axle with bails 24 are secured at their terminals tothe suitable draft devices 9. Mounted loosely plates 23, and the latter embraces vthe oppo- .4o upon the king-bolt 7 is a draft-bail 10 and site longitudinal sides of the inverted-U- loosely engaging the bail and adapted for shaped hood 18. The plates or anges 23 exvertical and lateral movement thereon is the tend down over the longitudinal slots 19, and 9o usualy scraper-bar 11. A horizontally-disthe under edges of said plates are at interposed oblong stirrup 12 is secured to the unvals and opposite each other provided with der sides of the beams 1,is curved concentric notches 25.
with the king-bolt, and extends laterally at In bearing-lugs formed upon the invertedeach side of the machine. The stirrup is con- U-shaped hood 18, directly in rear of each of 95 structed of angle-iron and is provided at its the bails 2/1 of the locking-latch, bell-crank levers 26 are pivoted, there being in this instance two bails and two levers. The lower branches or members of the levers are convexed to constitute cams 27, and above each of said members there extends from the vertical portions-of the levers a locking-lug 28. The upper ends of the bell-cranks are connected by a bar 29, pivoted, as at 30, to the said bell-crank. To the rear end of the hood there is pivoted, as at 3l, a simple lever 32, and the same is connected by a wire or rod 33 with the rear end of the connecting-rod 29. By this construction it will be seen that by a rearward movement upon the part of the lever 32, which may be accomplished by the hand of the operator, the aforesaid bell-cranks may be swung to the rear, their cam-faces 27 rising under the bails 24, and thus elevating the locking-latch, so that the lower edges ot' its side plates or fianges 23 are elevated above the iianges of the inverted-U-shaped hood 18, or, rather, the longitudinal slots 19, formed by the hood and barA l1. Of course such elevating of the latch will be permitted by the withdrawal of the locking-lugs 28 from over the bails 24. By swinging the lever 32 to the front the movement is reversed, the locking-latch being lowered,and the lugs 28 swung over upon and lock the bails and locking-latch in a lowered or depressed position.
34 designates the transversely curved scraper-blade, to the rear side of which at its center brackets 35 are secured. A pin or bolt 36 is secured in the upper bracket, as best shown in Fig. 4. A V-shaped brace 37 has its front branch pivoted upon the bolt 36, its lower angular end reduced and pivoted, as at 38, to the lower bracket 35, and its rear end bolted by one of the bolts 17 to the under side ofthe reach-bar.` The pin or bolt 36 also passes through the rear bar 1l, so that the bracket is rigid and the scraper-blade capable of swinging laterally upon the pivots 36 and 38. Vertically-opposite pairs of brackets 39 are also secured to the rear side of the scraper -blade near the ends thereof, and from each of these brackets extend rearwardly a metal strap 40, the forward ends of which are pivoted by bolts 4l to the brackets and the rear ends of which are converged, meet, and are pivotally connected to themselves and to the ends of a horizontal connecting-bar 42 by means of pivoting-bolts 43..
making the ends of the beams L-shaped, as indicated at 48. These L-shaped ends or fingers engage with the slots 19, the horizontal portions of the ends riding in the slots, and the fingers or bent ends of the beams riding against the inner faces of the flanges of the hood 18. By raising the locking-latch in the manner heretofore described-that is, through the medium of the lever 32-and swinging the scraper to the right or left, thus changing the relative positions of the beams 45 and releasing the latch, the notches of the latter will take over and receive the front extremities of the beams, and thus lock the beams against movement, so that the scraper after having been moved to any desired angle by suitable mechanism may be locked and retained against any undesired displacement. Various mechanisms may be employed for operating the scraper, but I prefer the mechanism hereinafter described for this purpose.
In Figs. 1 and 7, 49 designates a pairof side cutters or wings, which are provided with L-shaped metal straps 50, secured to their faces, said straps having adjustingholes 51, by means of which they may be secured through the medium of bolts to the opposite ends of the scraper-blade. These wings or side Scrapers 49 are secured to the opposite ends of the blade or scraper when the same is set at a right angle to the line of draft of the machine, or substantially so, and said machine is employed for shoveling or drawing dirt from one point to another. By the employment of these beams or side scrapers the capacity of the scraping-blade is increased, as the dirt cannot run olf the sides or ends, as it would were such wings or blades not present.
In standards 52, supported on the rear ends of the beams 1, there are journaled two transverse shafts 53, and the said shafts have mounted rigidly thereon near their extremities a pair of beveled pinions 54, and between the saine a pair of hand-wheels 55. Upon the beams or sills l, in front of the shafts 53, bearings 56 are located, and in the same a pair of opposite longitudinal shafts 57 are journaled. These shafts are each provided at their rear ends with a beveled gear 58, meshing with a pinion 54, and at their front ends with small beveled pinions59. In arched standards 60, located in front of the pinions 59, short transverse shafts 6l are journaled, and each of these shafts is provided at its outer end with a crank or rockarm 62. Within the standard and between the beams or sills l beveled gears 63 `are mounted on the shafts 6l, and the same are engaged and driven by the beveled pinions 59 of the shafts 57.
The crank or rock arms 62 are provided at their ends with U-shaped yokes 64, said yokes being provided at their rear sides with pins 65, loosely journaled in the crank or IOO IIC
' the brake 70 to the foot-lever.
rock arms, and pivoted in each yoke by trunnions 66 is a sleeve 67, provided at its outer side with loops or keepers 68. The loops or keepers of each sleeve receive the upper end of a scraper-blade suspension rod or standard 69, the same being perforated at intervals for the reception of adj usting-bolts 69, (best shown in Fig. 2,) and passing through the keepers 68 of the sleeve 67.
Spring brake-shoes 70 are secured to each of the standards 3 and normally press against the peripheries of the hand-wheels 55. Below each brake-shoe there is pivoted to the platform 5, as at 71, a foot-lever 72, and a connecting-rod 73 leads from the free end of By this it will be seen that the hand-wheels 55 are constantly locked against rotation and may be released at any moment for such rotation by means of the foot of the operator exerting downward pressure upon the foot-levers.
In a cross-bar 74 there is journaled a vertical shaft 75, and the same is provided at its upper end with a hand-wheel 76, by which the shaft may be rotated. A bar 77 is provided at its rear end with an eye 78, which loosely receives the shaft 7 5, and at its front end has loosely journaled thereon a grooved roller 79, mounted upon a transverse track 80, located between the two inner sills or beams 1 of the frame. Between its ends the bar 77 is provided with an elongated eye 81, and in this is journaled the short transverse shaft 82 of a grooved pulley 83. A chain 84 has one end connected to the shaft 7 5, and its front end passed over the pulley 83, below which it depends, and is connected by links 85 to the inverted-U-shaped hood 18, heretofore described.
Upon the front edge of the cross-bar 74 a vertical standard 86 is mounted, the upper end of said standard extending inwardly, and being perforated to receive a Vertical detent or bolt 87, the lower end of which is, through the medium of its coiled spring 88, that encircles the same, normally pressed into engagement with the indentations or teeth formed in the periphery of a ratchet-wheel 89, which is mounted xedly upon the shaft 75. From the rear edge of the aforesaid crossbar 74 rises a short standard 90, and the same has fnlcrumed, as at 91, upon its upper end, a lever 92. This lever has its front end pivoted, as at 93, to the upper end of the bolt 87, and its rear end is connected by a rod 94 to the lower front end of a foot-lever 95, fulcrumed, as at 96, upon the platform 5, as best shown in Figs. l and 2.
^ By operating the wheel 76 it will be seen that the chain 84 may be wound upon the shaft 75. Previous to such operation, however, the two hand-wheels are rotated until, through the medium of their connections, the gears 63 and their shafts 61 are rotated sufiiciently to bring the rock-arms 62 to their highest or most ,elevated position-namely,
vertical. Such movements of the rock-arms through the medium of the standards 69 elevates the scraper-blade and the mechanism employed for supporting it-that is, the bar 11 and its hood 18, the ends of the bar 11 moving up the vertical clevis or bail 10 and the terminal 15 of the inVerted-V-shaped adjusting-pin. formed in the chain is taken up by rotating the shaft and winding the chain thereon. When operating this shaft for the purpose of taking up the chain, the foot-lever 95 is depressed, soas to raise the bolt from engagement with the ratchet, and thus liberate the shaft. When thus suspended, by operating the hand-wheels 55 in opposite directions the scraper may be swung from side to side upon its pivot-that is, in a vertical manner-so as to raise or lower either end thereof. By manipulating the inverted-V- shaped pin the rear end of the bar 11 may be adjusted in any of the perforations 13 of the It is at this time that the slack thus stirrnp, and thus disposed at an angle to the line of draft and give to the scraper-blade a proper angle. It will thus be seen that the raising and lowering of the end of the blade may be accomplished from the platform 5 and with great facility, requiring but very little power or exertion and simply the rotations of the wheels 55 and 76.
Having described my invention, what I claim is- 1. In a road-scraper, the combination, with the framework comprising the opposite side beams, opposite short shafts mounted on the beams and adapted for rotation, beveled gears 'mounted on the shafts, rock-arms extending from the ends of the shafts, rear transverse shafts, hand-wheels mounted thereon, beveled gears mounted at the sides of the hand-wheels, intermediate longitudinal shafts, and gears on the ends of the same, engaging those gears of the front and rear short shafts, of a scraperblade, means for locking the same, and connections between the blade and the rock-arms, substantially as specified.
2. In a road-scraper, the combination, with the frameworkcomprising the opposite side beams, opposite short shafts mounted on the beams and adapted for rotation, beveled gears mounted on the shafts, rock-arms extending from the ends of the shafts, rear transverse shafts, hand-wheels mounted thereon, beveled gears mounted at the sides of the hand-wheels, intermediate, longitudinal shafts, and gears on the ends of the same, engaging those gears of the front and rear short shafts, of a pivoted scraper-blade located under the framework vand standards loosely connected to the blade andy at their Lipper ends to the rock-arms, substantially as specified.
3. In a road-scraper, the combination, with the framework comprising the opposite side beams, opposite short shafts mounted on the beams and adapted for rotation, beveled gears mounted on the shafts,y rock-arms extending IOC IIO
from the ends of the shafts, rear transverse shafts, han d-wheels mounted thereon, beveled gears mounted at the sides of the hand-wheels, intermediate longitudinal shafts, and gears on the ends of the same, engaging those gears of the front and rear short shafts, of a scraperblade pivoted below the framework, opposite standardsloosely connected attheir lower` ends to the extremities of the blade, the yokes pivoted to each of the rock-arms, the sleeves pivotally mounted in the yokes and provided with keepers receiving the upper ends of the standards, and means for securing the sleeves upon the standard, substantially as specified.
4. In a road-scraper, the combination, with the framework comprising the opposite sidebeams, opposite short shafts mounted on the beams and adapted for rotation, beveled gears mounted on the shafts, rock-arms extending from the ends of the shafts, rear transverse shafts, hand-wheels mounted thereon, beveled gears mounted at the sides of the hand-wheels, intermediate longitudinal shafts, and gears on the ends of the same, engaging those gears of the front and rear short shafts, of the scraperblade located under the framework, connections between the ends of the same and the rock-arms, a scraper-bar located above the blade, pivotal connections between the bar and blade, and means for raising and lowering the bar, substantially as specified.
5. In a road-scraper, the combination,with the framework, the vertically-movable scraper-bar, and the scraper-blade pivotally connected to the bar, of the vertical winding-shaft, the wheel on the end of the same, means forlaterally adjusting the rear end of the bar, a rod loosely connected with thewinding-shaft, terminating` at its front end in a bearingr and in rear of the same in an eye, grooved pulleysmounted on the bearing and in the eye, a transverse track for the front pulley, and a chain connected with the winding-shaft and passing'over the pulley of the eye and having its lower end connected to the scraperbar, substantially as speciiied.
6. In a road-scraper, the combination, with the framework having the platform at the rear end of the same, the longitudinally-disposed scraper-bar, the blade pivoted to thel bar, and means for oscillating the same, of a winding-shaft, a cross-bar having a bearing for supporting the same, a Wheel at the upper end of the shaft, a ratchet-Wheel mounted on the shaft, a standard at one side of the ratchet-wheel, a vertical spring-pressed bolt for engaging the Wheel, mounted inthe standard, a fulcrum-stand'ard at the opposite side of the shaft, a lever pivoted therein and connected at its front end to the bolt, a foot-lever mounted on the platform, a connecting-rod between the same and the free end of the lever, and a chain connected tothe windingshaft and to the scraper-bar, substantially as specified. 4
7. In a road-scraper, the combination, with the front and rear trucks and the connectingframework, of the curved oblong stirrup secured to the under side of the framework in front of the rear truck and provided with u pper and lower registering perforations, the scraper-bar pivoted to the front truck and having its rear end provided with openings and overlapping the said stirrup, and the inverted -V- shaped pin having the long and short terminals 15 and 14, respectively, adapted to pass through the perforations of the stirrup and scraper-bar, substantially as speciiied.
8. In a road-scraper, the combination, with the framework and the longitudinally-disposed scraper-bar, of the inverted-U-shaped bar 18, the opposite edges of which combine with the scraper-bar to form opposite longitudinal slots, the opposite latch-plates 23, having transverse keepers 24 for connecting the same, the pivoted scraper-blade located under the bar, beams pivotally connected to the blade and terminating at their front ends in inwardly-disposed and upwardly-bent tingers mounted in the slots between the hood and bar, notches for engaging the fingers, formed at the lower edgesof the opposite plates 23, and means for raising and lowering the said plates, so as to disengage the fingers, substantially as specified.
9. In a road-scraper, the combination,with the front and rear trucks and connectingframework,of the scraper-bar having slots at opposite sides of its front end, bolts passed through the bar, an inverted-U-shaped hood mounted on the bolts and spacedfupon the bar and combining therewith to form opposite slots, a scraper-blade pivoted to the under side of the bar, scraper-beams pivotally connected to the blade and having their ends inwardly and upwardly bent, as at 48, to engage the slots betweenl the bar and hood, the opposite plates 23, terminating in depending fingers 21, engaging the slots at the front end of the bar, the transverse keepers 24, connecting the plates 23, the bell-cranks pivoted to the hood in rear of the keepers, said bell-cranks having their lower branches convexed to form cams 27 and above the same provided with locking-lugs 28for engaging theV keepers, the connecting-rod 29, the lever 32,. and the connecting-rod 33 between the lever and connecting-rod 29, substantially as specified.
10. In a road-scraper, the combination, with the scraper-bar and the scraper located below the same, of the opposite end brackets 39, the beams 45, loosely connected at their front ends to the scraper-bar and at their rear ends pivoted in the lower brackets and loosely clipped to the upper brackets, the'upper and lower braces 40, pivoted in` said brackets, the cross-bar 42, connecting the ends of said braces, the rest-bar 44, over which the scraperbar passes, bolts connecting the cross-bar to the scraper-bar, the upper and lower cen- IOO IIO
wally-located brackets 35, and the V-shaped my own I have heretoafxed my signature in brace 37, having its lower ends swiveled in the the presence of two Wltnesses. lower bracket audits front branch pivotally connected to the scraper at its upper bracket JAMES M' HOLLAND' 5 and its two branches rigidly bolted 'to the Witnesses: f
scraper-bar, substantially as specified. GEO. VAN BECK, In testimony that I claim the foregoing as FLORA GEIsEKA.
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