US1269740A - Mixing-machine. - Google Patents

Description

B. D. PINKNEY.

MIXING MACHINE.

APPLICATION FILED ocr. so. 1917.

Patented June 18, 1918.

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PATENT OFFICE.

BRYAN D. PINKNEY, OF CINCINNATI, OHIO.

MIXING-MACHINE.

Specification of Letters Patent.

Application filed October 30, 1917. Serial No. 199,248.

To all whom it may concern:

Be it known that I, BRYAN D. PINKNEY, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented a new and useful Mixing-Machine, of which the following is a specification. 7

My invention relates to improvements in mixing machines adapted foruse in mixing cake ingredients or other suitable materials; and the objectof my improvements is to provide a holder for the can, said holder being pivoted so it can be. swung away from the vertical standard toward the front of the machine.

I attain this object by the mechanism illustrated in the accompanying drawing, in whicht Figure 1 is a side elevation of my improved mixing machine; Fig. 2, a drawing of the latch mechanism in the normal position, the vertical raised position being indicated by dotted lines; Fig. 3, a drawing of the latch mechanism with the one side raised to its highest position, the dotted lines indicating the latch mechanism raised from the opposite side.

Similar numerals refer to similar parts throughout the several drawings.

Referring to the drawings, 1 is the vertical standard at the lower part of which is pivotally mounted the swinging can holder .2, on pivot 3. The can 4 fits loosely in swinging can holder 2, and rotation of the can is prevented by means of lug 5 on the can 4 which fits against a mating lug 6 on the can holder 2. Stud 7 in latch plate 8 fits in a corresponding slot 2 with -taper side pieces 2 in swingin can holder 2 to hold the can 4 rigid while the mixing is taking place. Latch plate 8 is pivotally mounted on vertical standard 1 by means of slots 9 pivoting on studs 10, said slots 9 being constructed so that the latch plate 8 can be pivoted at either side, or can be raised vertically (see Figs. 2 and 3). This I accomplish by having the inner face of the slots 9 relieved.

As the swinging can holder 2 is being swung to central or working posit on, the taper side piece 2* automatically raises the, stud 7, thereby raislng the latch plate 8, and when said swinging can holder is in the central or working position the stud 7 automatically drops into the slot 2", either by gravity or by mechanical means, and thus locks can 4. To swing open the swinging can holder 2, either lift or push down handle 8 of latch plate 8, and thus raise the stud-7 out of slot 2 so that the swinging can holder 2 may be pivotally swung either to the right of vertical standard 1 or to the left, as the convenience of the operator demands. A

Patented June 18, 1918.

pin 11- may be used to limit the outward position of the swinging can holder 2, so that the can 4 does not get into the operators way.

The vertical standard l'is provided with lugs 12 wherein guide rods l3'are secured.

At the top of vertical standard 1 is a speed box, of any suitable design, hence not specified in detail, and a bevel gear cover 14 covering the bevel gear 16 and the bevel pinion 15, said bevel gear 16 being journaled in the head of the vertical standard 1, and provided with a spline (not shown in the drawing) which slides in keyway 18 of vertical sliding shaft 18. A bracket 19 is slidably mounted on guide rods 13, in which said bracket 19 areinternal, teeth 19*. The vertical sliding shaft 18 projects through bracket 19, and at its lower end is secured the whip bracket 20, in which is journaled shaft 21, rigidly provided at its upper end with a pinion 22 intermeshing with the internal teeth 19, and near its. lower end with a rigid Whip driver 23. As the vertical sliding shaft 18 rotates the shaft 21- rotates in a concentric circle, due to the intermeshing of the teeth of pinion 22 with the internal teeth 19, and this is the principle of the so-called planetary gearing. Fitting loosely on the end of shaft 21 and interlocked with the driving slots 23 of whip driver 23 is a whip or beater 24 of any familiar design,.hence not specified in detail, said whip or beater 24 being lowered in or raised out of can 4 by any suitable means, such as for example, by screw 25 screwed in lug 19", and mounted in the upper part of vertical standard at 1 and actuated by miter gears 26, shaft 27, and handwheel 28, or any other suitable means. sliding shaft 18 is secured the collar 29, which acts as a thrust bearing at its lower part and as an oil drip at its upper part, for, on account of the vertical sliding action, a lubricant is necessary to prevent abrasion.

The speed box is located at the top part of vertical standard 1, andis provided with a lid 30 for access to the gearing and shift- On vertical change gear 41 are rigidly secured to speed change shaft 42, at the lower end of. which is rigidly secured the bevel pinion referred to.

The operation of my improved mixing machine is as follows: The ingredients to be mixed are placed in the can 4, and, the power being applied to the constant driven shaft 32, on which are speed change gears, of any suitable design, hence not shown in detail, a speed change gear is caused to mesh in eitherspeed gear 40 or 4:1, according. to what rate of speed is required. For beating up the whites of eggs and similar batches the highest speed is desirable; for mixing stiff batches the slowest speed is desirable. This causes the speed gear shaft 42 to rotate, and the power is transferred to vertical sliding shaft 18 through the means of bevel pinion 15, bevel gear 16, and spline 17. Rotation of vertical sliding shaft 18 causes the whip bracket to rotate, and as said whip bracket 20 rotates the pinion 22 is caused to rotate due to the intermeshing with the internal teeth 19 As pinion 22 rotates the shaft 21 also rotates, and so does the whip driver 23 and whip or beater 24.

It will be noticed that although the whip or beater 24: rotates in relation to shaft 21, it has also a movement concentric with the vertical sliding shaft 18. This imparts a most thorough mixing and stirring action to the whip or beater. After the batch is mixed the vertical sliding shaft 18 is raised by means of the handwheel 28 and cooperating parts, the whip or heater 24 removed from the whip driver 23, and the can swung away from the vertical standard 1 and contents removed.

Having thus described m invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. In a mixing machine, a vertical standard in combination with a can holder pivoted at the front of the machine so as to swing away from said vertical standard.

2. In a mixing machine, a Vertical standard in combination with a can holder pivoted at the front of the machine so as to swing .away from said vertical standard, a latch plate connected with said vertical standard, and cooperating latch means connected with said can holder.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit- K nesses. A

BRYAN D. PINKNEY. Witnesses ED. W. HEOKEL, W. S. BROWN.

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