US1109813A - Harrow. - Google Patents

Description

B. ASPFORS.

HARROW.

APPLICATION FILED APR.17,1913.

1, 109,81 3, Patented Sept. 8, 1914'.

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To all whom it may concern: I Be it known that I, Evmrr Asrrons, a citi- "zen of the United-States, residing at Floodwood, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Harrows, of which the following is a specification.

This invention relates to new and useful improvements-in harrows and more particulali'ly to the class having rotary teeth, or the Ii 0. I

An object of this invention is to simplify devices of this character making them portable and of such construction that a novice can readily assemble them together or take them apart.

Another object of this invention is to supply a device that can be utilized as a harrow during the summer months, and can also be used as a sled in the winter.

a With the above and other objects in view this invention resides in the novel features of construction, formation, combinations and arrangements of parts to be hereinafter more fully described, claimed and illustrated in the accompanyin drawings in which Figure 1, is a si e elevation of my improved harrow, F ig. 2, is a longitudinal view of the same taken on the line 2-2 of Fig. 5, Fig. 3, is a perspective view of the upper frame section of my harrow, Fig. 4, is a perspective view of the runners of my harrow, Fig. 5, is a bottom plan view of my improved harrow, Fig. 6, is a side elevation of one of the shaft bearings, and Fig. 7, is a front elevation of the same.

Referring to the accompanying drawings by similar characters of reference the numeral 10 denotes in general my improved harrow, which is composed of an upper rectangular frame 11 and a lower rectangular frame 12. The upper frame 11 has enlarged apertures 13 formed therein for the reception of the bolts 14 which pass through the covering or platform 15 forming the top of the harrow, while the rear and front ends of the rectangular frame 11 are bent in a downward position forming legs 16 and 17 and are joined by transverse bars 18 and 19, the transverse bar 18 having formed midway thereon a draft attachment 20. The frame 11 is bent into this formation so as to give the platform 15 an elevation so that oally of thesame construction, except that its front and rearends are bent in an upward direction forming legs 21 and 22 the same being also connected by transverse bars 23 and 24, the transverse bar 23 having formed midway thereon a draft attachment 25'corresponding with that of the bar 18 of the upper frame. The upper frame 11 has also formed in its legs 16 and 17 enlarged apertures 26 and 27 which correspond with the apertures 28 and 29 formed in the legs 21 and 22.0f the lower frame 12. Through these. apertures pass bolts 30 and 31 which securely hold. the upper frame 11 and lower frame 12 together, whilethe longitudinal bar 32 of the lower frame 12 constitutes a runner-when it is desired to use the harrow as a sled for hauling purposes. Secured to this bar 32 at suitable intervals are bearings 33 having apertures 34 formed therein for the reception of the ends of the horizontal shafts 3536 and 37. These bearings 33 are grooved as at 38 as clearly shown by Fig. 6 of the accompanying drawings, the grooved portion receiving a U-bolt 39 which passes around the end of the shaft, its ends thenpassing through apertures 40 formed in the bar 32 and securely held in position by nuts 41.

The shafts 3536 and 37 have secured to them at suitable intervals rotary teeth 42 which are secured to the shaft by means of a set screw 43, these shafts are held against displacement by collars 44 secured thereto by a suitable means. These rotary teeth 42 are so arranged that when the harrow is in operation the teeth 42 will not contact at all. The set of teeth-42 mounted on the shaft 35 breaking the soil first, while those mounted on the shaft 36 travel intermediate the path of those mounted on shaft 35 and turn the soil that has not been molested by the preceding set of teeth on the shaft 35, while those mounted on the shaft 37 travel in the path of those mounted on the shaft 35, thus turning any particles of soil that may not have been turned by the preceding shaft 35.

Having thus fully described this invenlegs, the lower frame constituting runners, tion what I claim as new and de ire to proand rotary teeth secured thereto. tect by Letters Patent is In testimon whereof I aflix my signature The combination in a barrow of a pluin presence 0 two witnesses.

. rality of rectangular frames having draft EVERT ASPFORS,

attachments formed thereon, legs formed Witnesses: upon the said frames and having a ertures E. B. RonmsoN, formed therein, bars connecting t e said L. LABIN.

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