US1182353A - Bread-mixing apparatus. - Google Patents

Description

N. C. COTABISH & E. B. GAFKEY.

BREAD MIXING APPARATUS.

APPLICATION FILED JUNE 18, I915.

Patented May 9,1916.

IN VEN TORS NEL SUN C. CUTABISH E WIN BIGAFKBY BY Man ATTORNEY WITNESS UNITED? STATES PATENT. OFFICE.

NELsoN c. coTAEIs'H, 01 LAKEWOOD, AND EDWIN- B. GAFKEY, 0E CLEVELAND, OHIO.

BREAD-MIXING APPARATUS.

Specification of Letters Patent.

Patented May 9, 1916.

To all whom it may concern Be it known that we, NELSON C. (IOTA- BISH and EDWIN B. GAFKEY, citizens of the United States, and residents, respectively, of Lakewood, in the county of Ouyahoga and State of Ohio, and Oleveland, in the county of Ouyahoga and State of Ohlo, have invented a .certain new and useful Improvement in Bread-Mixing Apparatus, of which the following is a full, clear, and exact description.

Our invention relates to improvements in bread mixing apparatus. There are a number of devices on the market for this purpose, but these usually are constructed in such a way that the parts are very difficult to remove for cleaning, in fact, can only be removed by laboriously taking the entire device apart.

One object of our invention is to so construct the mixer that the parts to be cleaned are readily removable without the use of any tools whatever.

Other objects will appear in the appended description.

In the drawings :Figure 1 is a longitudinal cross section along the line A-A of Fig. 2. Fig. 2 is an end view of Fig. 1 taken from the left. Fig. 3 is an end view of the mixing bowl taken from the right. Fig. 4 is a detail view of the mixing paddle.

In the drawings, 1 represents a support ing base preferably of metal, having vertical standards 2 and 3 between which is placed the mixing bowl 4. The bowl consists of two end- members 5 and 6 and a semicylindrical body 7, preferably of sheet metal, open at the top and adapted to receive a mixing or kneading or stirring blade. In Fig. 4 a suitable form of stirring blade is shown by way of example, consisting of two diametrically opposite stirring arms 9 connected by integral bars 10 to a central shaft 11. One end of this shaft has a conical socket 12 and the other end has a non-circular socket 13 for a purpose to be referred to hereafter.

The standard 2, which is adjacent the socket 13 in the shaft 11, has a fixed bushing 1-4 therein, adapted to receive a rotatable shaft 15. The end of this shaft extends through an opening in the end 5 of the bowl and has a square or other non-circular end 16 which engages the similarly shaped socket 13 of the mixing blade. A collar 17 on the shaft prevents it from sliding out of the bushing. To turn the shaft 15 and the blade which is in engagement therewith, we have shown by way of example a gear 18 and a worm 19 which may be driven by an electric motor or by any other source of power. In the other standard 3 adjacent the end 6 of the bowl, is inserted aslidable bushing or sleeve 20 which may be adjustably fixed in position by means of a thumb screw 21. A spindle 22 passing through the sliding bushing and an opening in the end- 6, fits into the socket 12 in the axis of the blade. The reduced portion 23 of the spindle passes through a corresponding opening in the bushing 20. Spring 24 normally maintains the spindle 22 in engagement with the socket bearing 12 of the paddle and an eccentric lever 25 is pivoted at 26 in a slot 26 of the member 23, for withdrawing the spindle to permit the ready removal of the blade.

The end 5 of the bowl has a circular boss 5 with one or more notches 5", in which fits a detent 6 pivoted between ears 6". The ends 5 and 6 are preferably made identicgl so that the bowl may be turned end for en When dough is being mixed the bowl will be locked from turning by the detent 6. When the dough is to be removed, the detent will be raised and the bowl rotated to the position shown in dotted lines in Fig. 2 where it may be locked by engaging the detent with another notch in the boss 5'.

The further operation of the apparatus and the advantages thereof will be apparent, but an explanation will be made of the manner of taking the device apart for cleaning. The mixing blade is the part that is most difficult to clean on account of its irregular shape, and to remove it, all that is necessary is to turn cam lever 27 upward until the fiat surface 28 abuts against the end of the sleeve 20. As the cam is revolved the spindle is pulled out of socket 13 in the blade, where it will remain until the lever is moved in the reverse direction. After having withdrawn the spindle the mixing blade can be readily removed by sliding it off the lug 16.

\Vhen it is desired to remove the mixing bowl this can be done by loosening the thumb screw 21 and sliding the bushing 20 outward until the latter clears the end of the bowl. The bowl can then be lifted out. It will of course be apparent that the bowl can be removed in the same way, irrespective of Whether the mixing blade has been removed or not.

Having described our invention, what we claim is 1. In bread kneading apparatus, a bowl to contain the dough, supporting standards at each end of the bowl, a driving shaft ex tending through one standard and one end of said bowl, a sleeve slidably fitting in the other standard and abutting against the other end of the bowl, a spindle in said sleeve extending through said other end of the bowl, a mixing blade in the bowl having one end secured to the end of the driving shaft and the other end pivotally connected to the end of the spindle, means for holding the spindle in pivotal engagement with the blade and means for locking the sleeve in the standard to prevent displacement of the bowl.

of said bowl, a sleeve slidably fitting in the other standard and pivotally supporting the other end of the bowl, a spindle in the sleeve extending through said other end of' the bowl, a mixing blade in the bowl having one end secured to the end of the driving shaft and the other end pivoted to the end of the spindle, a spring in the bushing maintaining the spindle in engagement with the blade, means to withdraw the spindle against the tension of the said spring and means for locking the sleeve in the standard.

In testimony whereof, we hereunto affix our signatures.

NELSON C. COTABISH. EDWIN B. GAFKEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0."

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