US1654014A - Road tamfer - Google Patents

Description

1,654,014 1.927 w. s. PROCTOR ET AL ROAD TAMPER Filed July2. 1926 s szwets-shee Dec. 27, 1927.

W. G. PROCTOR ET AL ROAD TAMPER Filed JulyZ, 1926 3 Sheets-Sheet 2 Dec. 27, 1927.

W. G. PROCTOR ET AL ROAD TAMPER Filed Julyz. 1926 s Sheets-Sheet 3 WGCPr 0 1-: .mdz

r & auna lad Patented Dec. 27, 1927.

UNITED sures v 1,654,014 PATENT OFFICE.

WARREN G. YROC'IOB AND FBAN K B. .DUDLEY, F IITCHBURG, MASSACHUSETTS.

ROAD TAMPEB.

Applloation'flled July 2, 1926. Serial m. 120,1".

This invention relates to road machines, and more particularly to a machine espe cially designed for loosening the road surface, redressing, and finally leveling and tampin the surface.

Anot er object of the invention is to provide means for adjusting the tampers, with respect to the ground surface over which the machine is moving, to compensate for high and low places in the road surface and to insure an even surface.

With the foregoing and other objects in View which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the .details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawings:

Figure 1 is a side elevational view illu trating a road machine constructed in accordance with the invention.

Figure 2 is a vertical sectional view through the tampers and tamper housing.

Figure 3 is a side elevational view of the tampers and tamper housing, one of the tampers being shown in section.

Figure 4 is a sectional view taken on line of Figure 2.

Figure 5 is an elevational view of the adjusting roller.

Figure 6 is a planview of the machine.

Figure 7 is a sectionalview taken on line 77 of Figure 1.

Referring to the drawings in. detail, the device includes a frame embodying side rails 5 which are connected at their ends by means of the rails 6, that hold the side rails in proper spaced relation with each other.

The rear of the frame is supported by means of the wheels 7 mounted on the axle 8 that operates in the bearings 9 secured to the under edges of the side rails 5.

The front ofthe frame is supported by the wheels 10 that may be guided by means of the wheel 11, and other-suitable mechanism.

not shown so thatthe machine may be properly guided over a road surface. Adjacent to the operators seat which is indicated at 12 is a lever 13 that has connection with the link 14 which in turn connects with the arm 15 of the scraper 16, the scraper being pivotally supported by means of the brackets 17 secured to the opposite sides of the frame.

Depending from the underside of the frame are brackets 18 to which the drag 19 is pivotally connected, the drag being provided with pockets 20 or openings through which material may pass. The reference character 21 indicates a gravel bin which is disposed directly over the drag 19 for supplying gravel or other suitable surface dress mg material to the drag 19.

This bin is provided with a hop or bottom 22, there being provided an a justable closure 23 which when moved to its open position, provides chutes over which the ma terial may pass as it is being delivered to the drag. From the foregoing it will he obvious that due to this construction, the

device may be adapted for spreading mate;-

rial of various grades, since the o suing through which material passes from t e bin may be regulated. V The tampers forming an,important feature of the invention are indicated by the reference character 24, and as shown, these tampers are encased in the housing 25 adapted to move vertically between the side rails 5. The housing is held in an upright position bymeans of arms 26 that have pivotal connection with the upstanding arms 27, the forward ends of the arms 26 having connection with the shaft 28 that carries the came for operating the tampers in a manner to be hereinafter more fully described.

As clearly shown by Figures 2 and 3 of the drawings, the tampers embody heads indicated at 29, each head being provided with a movable weighted section 30, held in spaced relation with the head 31 of the connecting rod 32 associated therewith by means of coiled springs 33 to the end that the jar directed to the tampers incident to the tampers engaging the road surface will be absorbed, relieving the machinery of excessive strain and undue wear.

Eccentrics 34 are mounted on the shaft 28 to which the collars 35 are connected, to the end that as the shaft 28 is rotated, the connecting rods 32 will be moved longitudinally of the tamper housing to tamp the ground surface over which the device is moving.

Mounted at the rear of the frame ofthe machine, is a roller 36 that operates on the shaft 37 mounted in the bearings formed in the ends of the arms 38. An adjusting screw indicated at 39 has connection with the arms with link 43, at 44,

:38 andis controlled by means ofthe hand wheel 40 to the end that by rotating thehand wheel, the screw and roller may be adjusted vertically. by v At each end of the roller 36 is a link 41 link 43 and is supported by the link47, the

link 46 being pivotally connected at 48.with the link 49 mounted at the lower end of the link 50, the forward end of the link 49 having-pivotal connection with the tamper connectlon at 51. I

From the foregoing it will be obvious that when the roller 36 is adjusted to move the same upwardly. the tamper housingwill moved upwardly elevating the tampers.

to adjust them for an elevation, or irregularities in the road surface, as when the machine is moving over a hollow portion in the road surface. i

Upon movement of the roller in the opposite direction, it will be obvious that the tamper housing and tampers, will also be moved in the opposite'direction compensating for a depression in the road surface in a manner to insure the leveling of the road surface.

Power may be supplied to the shaft 28,

by means of the belt 62 operating over the motor 56.

pulleys 53 and 54, the latter pulley being secured to the outer end of the shaft 55 of the In the use of the machine, any suitable power may be employed for propelling the machine and when the machine has been roperly positioned, the scraper is adjusted y .the operator to cause the surface of the road to be thoroughly scraped and loosened. a Material such as gravelor similar top dressing material is released from the bin 21,

'otally connected links,

ating the tampers, links nee-1,014

( where it falls onto the drag 19 and is levhard road surface.

e claim 1. In a road machine, a wheel sup orted frame, a tamper housing supported y the frame, tampers mounted for vertical movement within the housing, a plurality of pivmeans for supporting the links in spaced relation with the frame, one of the links having connection with the tamper'housing, a vertically adjustable roller, one of the links having connection with the vertically adjustable roller, and said roller adapted to adjust the tamper housing vertically.

In a road machine, a frame, a vertically adjustable tamper housing, tampers operating in the tamper housing, means for ope pivotally connected to the tamper housing at opposite sides thereof, links pivotally connected with the first mentioned links, meansfor pivotally supporting the links on the frame, and means-for operating the-links to move the tamper housing vertically. I 3. In a road machine, a tamper housing mounted for vertical movement on the frame, tampers in the tamper housing, a plurality of pivotally connected links mounted on the frame, certain links being connected with the housing, means for operating the links to move the tamper housing in a true vertical plane, and means for operating the tampers. y

In testimony that we claim" the foregoing as our own, we have hereto affixed our signatures.

WARREN G. PROCTOR. FRANK R. DUDLEY.

to move to operate the links

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