US2092990A - Snow plow - Google Patents

Description

Sept. 14, 1937. c. l. SOUTHWICK SNOW PLOW 2 SheetsSheet l Filed Aug. s, 1956 v 1'0? Cassius NM 9%; Q

Sept. 14, 1937. c. 1. SOUTHWICK SNOW vPLOW Filed Aug. 3, 1936 2 Sheets-Sheet ,2

uihv i ck Cass'gsl. So

Patented Sept. 14, 1937 UNITED STATES,

SNOW PLOW Cassius I. Southyvick, Grand RapidsQMich.

Application August 3, 1936, Serial No. 93,927

7 Claims.

This invention relates generally to .snow plows and more particularly to an attachment for the diagonal blade type of snow plow.

The ordinary diagonal blade type of snow plow merely shifts the snow to the side of the road and packs it thus forming a snow bank immediately adjacent the trailing edge of the snow plow and this is objectionable inasmuch as a wall of snow soon builds up which prevents expeditious removal of additional snow.

My invention contemplates an. attachment or construction which will not only shift the snow from the roadway but which will also throw the snow well aside from the roadway. Furthermore, my construction is so devised as to cause the snow to be thrown upwardly as well as outwardly, whereby plenty of space will be available for its disposal. I

Another advantage of my invention resides in its simplicity and sturdiness. It will be noted that there are no rotating or moving parts in my construction, the aforesaid desirable results being obtained by the novel positioning of the several rigid members. This fact, .of course, makes for economy both in construction and maintenance. It is to be understood that my invention can be initially built in a construction or else can-be constructed as a unit which is to be permanently attached to a diagonal blade type of plow.

Another advantage of my novel snow plow is that it may be utilized as a.:follow-up plow for other snow plows of the ordinary diagonal blade type to widen the roadway which has been partially cleared by them. When this is done, the vertical plate of my snow plow, adjacent its trailing edge, cuts into the more or less packed bank of snow along the roadway and shears off a portion thereof throwing it outwardly and upwardly and thus preventing it from falling back into the roadway? Yet another advantage of my invention resides in the pointed cutting construction at the forward edge of the vertical plate near the trailing end of the scraper blade, this point engaging and loosening ice and snow whereby its removal is assured.

Other objects and advantages of the present invention will appear from the following description, taken in connection with the accompanying drawings, in which,

Fig. 1 is a front view of a snow plow madein accordance with this invention mounted on a truck. The colter is in position to cut away the bank formed at the side edge of the road.

Fig. 2 is a plan view of the plow and of a' portion of the front end of the truck.

Fig. 3 is a side elevation of the plow and truck as illustrated in Fig. 2. t

Fig. 4 is a horizontal section taken on line 4-4 of Fig. 1. I v

Like reference numerals refer to, like parts throughout the several figures of the drawings.

As clearly shown in Fig. 2 of the drawingathe scraper blade I is attachedonto the't'ruck T by means of members including the rearwardextensions 2 and 3. These extensions form part of the mounting construction. A cutting plate or colter 4 is positioned nearthe trailing edge of the scraper blade I. This member 4 is rigidly attached onto the scraper blade I, by means of the angle clips 5, see Figs. 3 and 4, whereby it extends in substantial parallelism to the path of' movement of the truck. r

The lower end of the colter has an angle mem- 2.

her 6 extending laterally therefrom. See Figs. 1 and 4. This flange 6 is curved upwardly at its rear edge as indicated at I. See Fig. 3. Its forward edge is pointed as clearly shown in Fig. 4.; The main body portion of the colter 4 extends slantingly upwardly at its front edge, see Fig. 3, and thus a point 8 is formed at the leading edge of the colter. This is clearly shown in Fig. 4 of'the drawings. I,

'A curved plate member or fillet 9 is flanged at one of its substantially vertical edges as indicated at'lli and rivets l I pass through this flange and through the colter 4, see Figs. 3 and 4,120 maintain the member 9 in position. At its opposite substantially vertical edge, fastening bolts i2 are provided. Thus the member 9 is securely held. in position. This member extends between the scraper blade I and the colter 4 and slants upwardly to provide a path for the snow thrust thereagainst by the diagonally positioned scraper blade I. loosened by the point 8, will slide upwardly along the surface of this fillet plate 9. a

The upper edge of the plate 9 has a curved extension l3, this extension extending outwardly over the top of the colter 4 as clearly shown in Fig. 1. Thus a path is formed for the'outwardly thrust material.

A mold board I4 is bolted at the top of the scraper blade I and receives a brace ll fastened at 8 thereto whereby it is held in position. The other end of the brace I1 is connected onto the mounting structure between the truck and the snow plow.

Also, ice and packed snow, which are The operation Duringoperation the forward movement of the scraper blade I causes the snow to be moved the colter plate 4, see Fig. 3, engages against any;

bank of snow Whlch may be m Its path for 3 lIA snow plow of the character described comprising a diagonally positioned scraper blade, said scraper bladebeing' mounted on an angle relative. to awerticalplane, the upper edge of said reason and shears off the projecting portions thereof. The snow and ice travel rearwardly and upwardly from adjacent thepoint 8 and .are c,ar-.

ried outwardly by the impact of ther'nain' body of the snow which is being thrown outwardly .and

ofjthe Jsnow plow. 7

My devic ejaltholl fir seemingly simple construction, "is 1 neverthelessjhighly efficient and ac complishesjresultsf 'whichhave been sought previously but which have fnot. been accomplished by a's'tructureof this'j character;

Therefore, having'"thus described my'inven tion I claim as newthe'. structure defined in the appended claims and this structure is to be con; sidered comprehensive of all forms Qf's'tructure coming withintheir scope; p

l' f mi' V V 1, In a snowplow construction of the diagonal type having a scraper blade curvedupwardly and rearwardly', an approximately vertical colter plate attached near the trailing edge thereof in sub stantial parallelism to the path of movement'of the'..scraper blade, saidcolter platehaving its front edge extending'upwardly' and rearwardly and a'fiange located near the bottom'edge of the colter plate and, extending inwardly under the scraper blade; said forward portionof the flange being pointed outwardly forjthej purpose described.

. 2. In combination, a scraper blade adapted to be mounted diagonallyto the roadway over which it is to be pushed, a colter plate of flat construction, means for fastening the colter plate in parallelism to the path of travel of the scraper near one end of the blade, a fillet positioned between the blade and colter plate and having a lateral extension protruding over the upper edge of the colter plate for the purpose described.

v 3. A combination of 1 elements as set forth in claim 2 but'also having amoldbo'ard fastened to the scraper blade, said moldboard curving forwardly and outwardly over the said lateral extension.

positioned in a plane parallel to the path of travel of the plow duringthe scraping operation, attachedto and contacting substantially theen tire trailing edge .of the scraping blade, the 1-forward edge of said. colter extending slightly forwardly .of the forwardjedgeof the scraping blade, said extension on the colter being pointedfor-the purpose described. -1 1 5..A snow plow as describedinoclaim 4 having a fillet of curved horizontal cross section'which is attached to said colter and to said scraper blade andwhich. spans the angular gap .therebetween for the purpose described;

:6. A snow plow as'describedjin claim 4 being furtherlcharacterized in providing an extension for said scraper blade, said scraper blade extension being attached to the upper trailing edge of said scraper "blade, saidblade extension extending upwardly and outwardly relative to the trail,- ing-end of said scraperiblader V 7. A snowlplow as described in claim 4 having an extension for said scraper blade, said scraper

Images