US924966A

US924966A - Road-grading machine.

Info

Publication number: US924966A
Application number: US35181207A
Authority: US
Inventors: Harry K Clemons
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-01-11
Filing date: 1907-01-11
Publication date: 1909-06-15
Anticipated expiration: 1926-06-15

Description

-H. K. GLEMONS.

ROAD GRADING MACHINE. APPLIOATIOQ PI LED JAN. 11, 1907. 924,966. Patented June '15, 1909.

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ROAD GRADING MACHINE.

APPLIOATION FILED JAN.11,1907.

PatentedvJune 15, 1909.

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aha!" H. K. OLEMONS. ROAD GRADING MACHINE. APPLIOATION FILED JAN .11', 1907.

Patented June 15, 1909.

3 SHEETS-SHEET 3 formed by an angle bar 11,.and on its back,

- form of an angle bar 18, both of which bars. 40'

UNITED STATES PATENT OFFICE.

HARRY K. CLEMONS, OF ST. PAUL, MINNESOTA.

noan-enamnenacnmn.

Specification of Letters Patent.

' Patented June 15, 1909.

Application filed January 11, 1907. Serial No 351,812.

To all whom it may concern:

Be it known that I, HARRY K. CLEMONS, a citizen of the United States, residing at St. Paul, 11.: the county of Ramsey and State of Minnesota, ,have.invented .certa'in new and useful Improvements in Road-Grading Machines; and I do hereby declare the following to be a full, clear, and exact descri tion of the invention, such as will enab eothers skilled in the art to which it apper-' tains to make and use the same.

My invention has for its object to provide 7 an improved road. grading machine, and to this end, it consists of the novel devices and combinations of devices hereinafter described and' defined in the claims. 7

The invention is illustrated in the accompanying drawings, wherein like characters indicate like parts throughout the several views.

Referring to the drawings: Figure 1 is a plan view of .the road Fig.2 is a view principal illustrating on -a larger scale than in the other'views, the means for imparting angular adjustment to the wheels, the said parts being viewed from the rear.

The scraper blade 2 which is ofthe ordinary. construction, is provided at its upper. edge with a reinforcing flange preferably a considerable distance above its lower edge, it is provided with another flange in the 11 and 18 extend from end to. end of the blade 2. A beam 26 is connected by a loose joint 11 to the central portionof the upper flange of the angle bar 11, and as shown extends'both forward and rearward thereof atapproximately a right angle thereto. At the rear of the scraper blade, is a pair of upright swinging brackets 3 having trunnions at their forward ends, which trunnions at their upper ends are loosely pivoted in the SU pro ecting flange of the angle bar 11, and at their low er ends are pivoted in a sliding bar: 16 mounted on the projecting flange of theangle barlS, the said flange being slotted at 18 to permit angular adjustments of the lower portions of said brackets 3, as best H shown in Fig. 4. An alinement bar 5 which has hooked ends connected toeyes 27 on the brackets 3, connects the said brackets for parallel swinging movements. v I The main wheels-1 are suitably journaled on trunnions located at the rcarw'ardly pro-. -jectingends of crank axles .4, that are lnterniediately journaled in the intermediate por- -tions of the swinging brackets 3,7 and as shown, are provided withforwa'rdly project ing ends connected by short links 7 to-the short lower arms of operating levers 8. These levers =8 are -pivotallyconnected to-notched 'latch-seginents 9, shown as rigidly'seeured to --the angle bar -11 of the scraperblade. These leversr'and latch segments serve to'liold the crankf axles 4 in 'diflerent independent adjustmentsfi By such adjustments, as-is evident, the-opposite-ends of the scraper blade '2 may be independently raised and lowered,

and the blade'may be set to scrape either a level surface or a/surface inclined in either direction. The forwardly projecting end of the=beanr 26 isacarri'ed by a .gage-wheel="23 of "the caster-wheel ;type, which; together with its-pronged bracket '24, constitutes a.

truck serving to support the forward portion of the weight of the machine. As shown, the wheel bracket 24,is provided with a trunnion 25-that is pivotally connected to the beam 26, andit isalso "provided with a perforated segment 32. Bymeans of-the.

in 35, it may be inserted through the 'peroration in the beam 26 andthrough one or the other of the perforations in the segment 32. Thewlieel bracket 24:, may, when desired, be locked against lateral swinging movements. Adraw bar '15 is pivotally con- -nected at its rear endat 21* (see Figs. 1 and v 2), to the beam 26 forward oftheextreme rear end of the latter; and mounted on=this bar 15, is a-standjard 12' that carries an ordinary seat 13. A foot-operated latch dog 31 pivotally. mounted on the draw bar 15,

and is adapted toengage perforations of a "latch bar 19, which as shown, 'is segmental,

.in forin'and at its ends, is securely but loosely anchored at"19 to the-flange of-the angle bar 11. The pole' 29 is'hinged or pivotally connected to the forward end of the draw bar 15, as shown by means of metal straps 3O and a'coupling pin" 28. A shim or spacing block 34 secured on the beam 26,*holds the latchbar 19 in a slightly raised position, as shownimFig. 2; and a clip or keeper secured to'the underside of the draw bar 15,

liolds'the' latter-down in close engagement desired angle in respect to the scraper blade.

2, on either side of the beam 26. The pole 'and draw bar 15 will, of course, always remain in the line of draft, so that adjustments of the same in respect to the latch bar 19 willchange the angle of the blade 2 with reference to the line ofdraft, and permit the blade to be set at the will of the operator, so that itwill work the earth continuously in one direction from a single ditch to the center of the grade, while moving in'either direction. The end of the slidin bar 16 is pivotally connected to the depen mg end of a hand lever 10 that is pivotally connected to, and cooperates with a suitable notched latch segment 14, ri idly secured to the angle bar 11 with the b ade 2. This lever and latch segment serve to hold the swinging brackets 3 in different angular positions in respect to avertical' line, as best indicated by dotted lines in Fi 4:. Hence, through the mechanism justdesoribed, the wheels may be set either in a perpendicular or in oblique positions at the will of the operator. On the so-called alinement bar 5, are stop collars 6 that are adapted to enga e the beam 26 and a keeper strap 26, see ig. 2. These stop collars 6 are made adjustable by vmeans of a pin or key 33, that is adapted to be inserted mto the perforations therein and through perforations in the said alinement bar 5.

The numeral 17 indicates a V shaped brace or bracket, the prongs of which, at

their forward ends, are securely but loosely connected to the projecting flange of the angle bar 18 of the scraper blade 2; and at its rear end portion, said bracket is adjustably connected to the rear end portion-of'the beam 26, as shown, b means of a nutted bolt 36. passed 'theret rough and through one or the other of several perforations 37 in the said beam 26. The beam 26, the scraper blade 2, and the brace 27, form" an adjustable triangular structure in which the angle to which the said blade will be set in respect to a vertical line de ends on the position in which the rear en of said brace 17 is connected to the rear end of said beam 26. ad'ustment is indicated by full and by dotted ines in Fig; 2. At the same time,

the said brace 17 serves to hold the scraper blade always in a right'angle to the said beam 26. What I claim and desire to secure by 'Let- .ters Patentof the United States is as follows:-.

Y 1. A road-grading machine, the blade secured to a pair of flanges extending the entire length thereof; said flanges supporting in athinge or pivoted manner a air of depending swingmg brackets capab e of an oscillating or swinging motion with means for holding said swingin brackets .where set substantially as described.

2. In a road-grading machine the combi-' nation with a pair of wheels connected to a pair of swinging oscillating brackets pivotally attached to ablade with means for holding said swinging brackets where set substantially as described.

3. In a road-grading machinethecombination with a pair of wheels connected with a pair of bell crank axles 1ournaled through a pair of oscillating or swinging arms or brackets, said brackets in turn being pivot I .ally connected to another pair of flanges rigidly attached 'to a blade with means for raising or lowering the blade and Vljoldmg same where set, by a connection with the forward ends of said bell crank axles manipulating same upward or downward substantially as described.

4. In a road-grading machine the combination with an alinement bar connecting a pair of swinging brackets and holdlng said brackets at various angles with reference to the blade of means for holding same where set substantially as described.

In a road grading machine, the combination with ascraper blade, of a pair of brackets pivotally connected to said blade, crank axles pivoted to said brackets, and adjustable laterally therewith, wheels journaled on'said crank axles, means for ad'usting and holding said crank axles in di erent positioiis, and means for adjusting said brackets and wheels from perpendicular into obligue angle positions, substantially as describe 6. In a road-gradin machine, the combination with a pair 0% levers 8 engageable innotched segments 9 fulcrumed to pivots 36, engaging to the ends of a pair'of bell- 11, and slide 16, and capable of moving latorally, slide 16 carrying swinging brackets 53 and wheels 1 connected thereto from a ver' tical to an oblique angle, and holding the same where set, substantially as described.

8. In a road-grading machine, the co1nbination with an alinement bar 5, capable of changing the angles of the swinging brackets 3, and the wheels 1 attached thereto to any desired angle with reference to the blade and by properly adjusting slides or collars 6 rigidly secure wheels 1 at the various an gles with reference to the blade and hold same where set, substantially as described.

" lessee 9. In a road grading machine, the 'combi nation with lateral braces 17, being ca 'able.

of adjustment forward or backward on' cam 26 at their npper part and secured to blade 2 at their lower parts in such a manner as to admit of blade 2 being tilted or changed to various angles-with reference to beam 26.

I and held where set, substantially as described.

10. In a road-grading machine the combi- "nation with a beam secured to the top of flange 11, and extending forward and backward'from center of and at an angle with blade 2, a truck wheel pivotally connected w-it h and supportingandcarrying the front end of beam .26, with'meansforcha'nging the angle of saidwheel or truck with refer,-

ence to its line of draft and holding the same i where set, substantially as described,

' 11. In aro'ad-g'rading machine, the combination with a pole pivotally connectedwith a draw bar, a draw bar at its rear end pivot allvconnected to a beam to the rear of blade-the forward end of said bar capable of passing over blade and describing the segment of a circle and forming various an gles with reference to the blade thereof, with means of holding said bar where set, substantially as described.

12. In a road-grading machine the combination with a draft bar 15,,pivotally connected at its rear end to rear of'beam 26, beam 26 supporting segment .19, segment 19 secured to beam 26, and-at the ends to flan e v, 11,- and bearing on its upper surface t e draft bar 15, foot operating dog latch 31 engaging with either of the several perfora tiqns'bar 15 and segment 19 are provided with. holding same where set, substantially as described. a

13. In a road grading machine, a scraper blade, a beam connected to the upper central portion of said scraper blade'and projectingrcarward thereof, and a brace adjustably connected at its rear portion to the rear portinn of said beam, and connected atits forward portion to a lower portion of said. scraper blade, the adjustments of said brace on saidbeam serving to vary the vertical pitch of said blade.

14. In a road grading machine, a scraper blade, a beam connected to the 11 per central portion of said scraper blade an projecting rearward thereof, said beam having a multiplicity of perforations in'its rear end, an

approximately. V shaped brace the forwardly projecting prongs of which are attached to a lower portion of said scraper blade on opposite sides of said beam, and a bolt cooperating with the perforations in said beam, to adjustably connect the rear portion of said brace to the rear portion of said'beain,"tlieadjustments of said brace on said beam serving to vary the vertical pitch of said scraper blade.

'15. In a road grading machine, the comthe front and rear ov said blade, :mean's adjnstably supporting said scraperblade from said wheels, a beam secured to the upper .binat ion with -a -scra "r-blade, of wheels at" centralportion qfsaid-scraper blade-and: projecting rearward ther of, andy'abrace connected ,to a=lower orti n of said scraper-y a blade on opposite si es of said beam and" adjustablyc-onneotedat its rear portion to. thejreanportion "of said beam,'the adjustments of said brace on said beam serving to yarythe. vertical pitch of said scraper blade.

16. In a road grading machine, 'the-confbination with a scraper blade, of brackets connected toj'said blade forlateral swinging movements, crank axles connectedto said bracketsfor vertical osclllatory movements,

freedom for both lateral and-vertical swinging movements, and to the rear portions of which crank axles, the said rear wheels are adjusting said crank axles, and means hol ing the said crank axles for parallellateral swinging movements, substantially as dgk;

scribed.

.jonrnaled, independent devices for verticalliy I 18. In a road grading machine, the com bination with a scraper blade, of supportin wheels at. the front and rear of the sai blade, crank axles connected to'said scraper blade for lateral and vertical swingmg" movements, to the rear portion of which crank axles the rear supportm wheels are j ournaled, independent devices or vertically.

adjusting said crank-axles, a beam connected to the upper central portion of said scraper blade a projecting rearward thereof, a

brace connected to the lower portionof said scraper bladeon opposite sides of said beam, and connected at its rear portion to the rear portion of said beam, a draw bar pivotall connected at its rear end to said beam,'bac

of said scraper blade, means for locking said v draw bar n different horizontal angular "adjustments in respect to saidbeam and scraper blade, and a pole connected to said draw bar. 19. In a road grading machine, the combination with a scraper blade, of a beam connected. to the central upper portion of the said scraper blade and projecting rearward thereof, a brace connected to a lower. portion of said scraper blade and tothe rear portion of said beam, a draw bar pivotally. connected to said beam at the rear of said for horizontal and vertical swinging move- .holding said crank axles for parallel horiscrap'er'blade, and means for securing said 1 drawbar in different horizontal angular adjustmentsin respect to said beam and to said scraper blade.

20. In a road grading machine, the combination with a scraper blade and Wheels supportingsame at the front and rear, of crankaxles connected to said scraper blade ments, and to the rearwardly prQ ecting portions ofwhich crank axles the rear Wheels are journa cd, independent devices for verti- I cally adjusting said crank axles, means for zonta'l; swinging movements, a beam connected to the central upper portion of said scraper blade and projecting rearward thereof, a brace connected to a lower portlon of said scraper blade andv adjustably conent horizontal angular adjustments in respect to said beam and scraper blade, and a pole connected to the fonward end of said draw bar, substantially as described.

In testimony whereof I my signature in the presence of two witnesses. v

HARRY K. CLEMONS. Vitnesses: 1

A. H. LYNCH, EDWARD H. WVmson.