US497641A - Hand-lever - Google Patents

Description

c pieces, mounted to slide upon the level', Hsu-- UNTTEE' STATES i PATENT OFFICE EMIL EINFELDT, OE DAVENPORT,

IOWA, AssIeNoR To THE EAGLE MANUFACTURING COMPANY, OF IOWA.`

:SPECIFICATION forming part of Letters Patent No. 497,641, dated May 16, 1893.

Application iiled December 2, 1891. Renewed March 7, 1893. Serial No. 464.934. (No model.)

.To all whom it may concern:

Be it known that I, EMIL EINFELDT, of Davenport, county of Scott, and State of Iowa,

have invented a new and useful Improvement in Hand-Levers for Cultivators, dre., of which tionary plates lying adjacent to the levers.

It has been usual to construct the sliding dog or latch proper in one or more expensive ally in connection with separate guiding devices, and to operate this slidin g dog by means of a rod extending to a thumblatch or lever pivoted on the end of the main-lever. Now,

I aim to dispense entirely with the separate` latch-or dog, and to reduce the cost of and simplify the construction by so forming the inner end of the controlling-rod that it will directly engage the toothed plate and thus serve in itself as the locking device. To this end I bend the inner end of the rod laterally and project it through a slot in the lever so that its laterally bent portion serves both as a guide to retain it in position and as the catch to engage the retaining plate.

In the accompanying draWings,-Figure l represents a sect-ion through a lever and the adjacent toothed plate in connection with my locking device. Fig. 2 is a side elevation of the same. Fig. 3 isa perspective view of the inner end of the locking rod detached. Fig. 4 represents a vertical cross-section showing a modified form of locking device.

Referring to Fig. l, A represents a handlever mounted to turn at one end on a shaft or other fulcrum B, and C is astationarysector-plate fixed in position at theside of the lever and provided in its edge with a series of notches c, as usual.

D represents my improved locking device, consisting of a rod connected at its upper end in the usual manner, to a thumb-latch or other Operating device E, whence it is extended along the lever to a point near the lower end where it is bent at a right angle andl proj ect` ed through a slot a, in the lever across the outer edge ofthe plate C, and finally bent downward at the end over 'the outer side of said plate. A spring F, applied beneath the thumb-latch E, or otherwise applied, urges the rod endwise toward the innervend of the lever, causing its transverse portion b, to enter one of the notches in the plate C, and thus lock the lever firmly to the plate. The downturned extremity of the rod b, overlapping the face of the sector-plate serves to prevent the rod from swinging laterally away from the lever; or, in other words, prevents the bent end from drawing out of the slot in the lever. It will be observed that in my structure the end of therod constitutes in and of itself and alonethe entire connection or locking member between the lever and sectorplate, thus doing away with the necessity of the separate locking-dog, its guide, and the other parts commonly used in said structures and witllthe expense of fitting them.

The essential feature ofthe invention resides in sol bending and arranging the inner end of therodthat it directly engages the sector-plate, and it will be manifest that it may be varied in form andarrangement at will, provided it is adapted to serve this purpose. l

In Fig. 4, I have represented the rod D, as suitably .bent at the inner end to engage the sector-plate before it passes through the lever,

its end being finally projected through the y along the side of the rack and serving to hold lever, its inner end bent laterally through the the lever and rack together, and also to hold slot; and the lever, and again bent at the extremity to retain it in place.

2. The combination of a segmental rack, a hand-lever adjacent thereto having a slot or elongated opening opposite the rack, a longitudinally movable rod lying against thelever 0n lthe side opposite the rack, and having a I right angular portion which projects through means for operating said rod and dog.

In testimony whereof I hereunto set my hand, this 20th day of November, 1891, in the presence of two attesting Witnesses.

EMIL EIN FELDT.

Vitnesses:

NATH. FRENCH, EFFIE E. MORAN.

the lever and forms a locking-dog to engage the rack, the projecting and of said right angular portion being again bent at right angles the dog and rod in place on the lever, and

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