US2200056A - Tappet-lock for cone boxes in a conebaking machine - Google Patents

Description

y 7, 1940- s. e. BUTTERMANN I 2.200.056

TAPPET-LOCK FOR CONE BOXES IN A CONE-BAKING MACHINE Filed Dec. 20, 1958 Patented May 7, 1940 i wUNlTED STATES PATENT OFFICE TAPPET-LOCK FOR CONE BOXES IN A CONE- BAKING MACHINE Garry G. Buttermann, Louisville, Ky.

Application December 20, 1938, Serial No. 246,904

1 Claim.

vention is to prevent a sliding contact of the inner end of the tappet-lock against the tappetcam, which, on account of the great pressure required to lock the cone-boxes tightly, formerly caused excessive friction between the inner end of the tappet-lock and the long tappet-cam, designed to operate the lock, thus necessarily impeding the rotary movement of the cone-baking machine. Another object of my invention is to avoid the wearing away of the contacts parts, the inner end of the tappet-lock and the face of the tappet-cam over which the tappet-lock rides under severe pressure. Other objects of my invention will appear in the process of this specification.

The foregoing objects have been attained in the present invention; and my new and useful im-' provement in tappet-locks for cone-boxes in a cone-baking machine, illustrated in the accompanying drawing, forming a part of this specification, is a practical device embodying the aforesaid novel means and other new and useful de tails of construction, arrangement and combination of parts, all of which together with their I functions will be described in detail with reference to said drawing, and will be definitely pointed out in the claims that follow the description, so that any person skilled in the art may be able to construct and use this invention.

In said drawing, Fig. 1 is a side elevational view of one of the cone-boxes closed and locked and operative in a cone-baking machine, showing myv improvement in tappet-locks holding the sides of the cone-box together. In this Fig. 1 is shown, also, a fragment of the cone-baking machine supporting the cone-box and the rocking tappet-cam controlling said lock.

Fig. 2 is a side-elevational view of said conebox unlocked and open, showing the relative location of the tappet-lock and its operative cam in their idle positions, and a fragment of the rotary cone-baking machine.

Fig. 3 is a front-elevational view of said conebox and a side-elevational view of its operative tappet-cam, showing a slight upward incline at the end thereof.

Fig. 4 is a side-elevational view of the rocking tappet-lock with its tappet-roller removed from the roller shaft thereof.

Fig. 5 is a side-elevational view of my tappetroller, showing the large circular opening at the center thereof.

Fig. 6 is an elevational view of the edge of said tappet-roller, showing the location of the circular roller-crown. 5

Fig. '7 is a side-elevational view of the internal bushing for said roller, showing the integral circular head thereon.

Fig. 8 is a side-elevational view of the circular head of said bushing, showing the circular boring in the end thereof for installing on the round shaft of the inner end of the tappet-lock.

Fig. 9 is a side-elevational view of a fragment of said tappet-lock, showing the old type of the tappet at the inner end of said tappet-lock. 1 I

, mechanism, the inner end of the tappet-lock and the'face of the tappet-cam, in operating said lock for locking the cone-box in normal service; for, to lock the cone-box securely requires great pressure exerted on the inner end of the tappetlock. And with said purposes, as the special objects aforesaid, in view, I will'describe my invention in detail, pointing out the new and useful features of the construction and the assembling of the individual parts and the combinations thereof, as illustrated in the drawing hereinabove described, in which similar letters and characters refer to similar parts throughout the several views.

In the invention and development of my new and useful improvement in tappet-locks for coneboxes in a cone-baking machine, I have thoroughly tested out everydetail of the parts involved 40 in my complete improvement thereof in a years experiment in actual service; and I have found my invention a complete success. And in the design and construction of .my new improvement in tappet-locks for cone-boxes, I have turned internal bushing 4b, provided with the circular head 40 shown in Figs. '7 and 8. The circular roller 4 shown in Figs. and 6, is provided with a circular crown to designed, in the service assemblage of the parts, to fit loosely against said plane-surface cut as the base of the round shaft 30, as shown in Figs. 1 and 2.

In assembling the new tappet-roller 4 for service on the shaft 30 at the inner end of said tappetlock, we push the loosely-fitting bushing 41') into the large circular opening in the roller 4, so that the integral circular head 40 of the bushing 3b.

rests against the side of the roller 6 opposite the roller-crown ta; and we then push this combination on over the round shaft 30 so that the roller-crown 4a will rest lightly against the planesurface cut at the base of the shaft 30. We then insert the cotter-pin 5 into. the transverse hole near the end of the shaft 30 to hold this combination of roller and heavy, headed bushing, as a loose bearing thereof, in their operative position in normal service.

The primary object of the circular crown 411 on the tappet-roller 4 is to hold the tappet-ro-ller Q away from the great heat, of the inner end of the tappet-lock, running back by conveyance from the highly-heated cone-box l of the rotary baking machine, as the box passes through gas flames in normal service; and the secondary object of said roller-crown is to reduce the friction between the roller and the adjacent plane-surface cut 30' as the roller 4 is rotated under great pressure in passing over the long face of the tappet-cam. 6.

So, also, the large heavy bushing 4b with its integral circular head 3c, has been designed to fit loosely the hot shaft 30 and the roller 3, to help shield the roller from the high temperature of the shaft 30 and the: inner end of the tappetlock, and to furnish an internal rotary bearing for said roller in normal service. The tappetlock 3 is prevented from side-tippling by means of the extension hub 30 shown in Fig. 3.

In Fig. l the cone-box I, provided with an inner stationary side and an outer side adapted to swing on a pintle-hinge lb, is shown closed and tightly locked with the tappet-lock 3, the outer hooked end of which is provided with a plane-beveled inner face 3a designed to press the swinging side of said cone-box more tightly against the stationary side thereof, as the hooked end of the tappet-lock is forced down over the end of the bolt-catch shown in Fig. 1. This efiicient locking pressure on the bolt-catch shown in Fig. 1, is caused by the upward movement of the inner end of the tappet-lock 3 rocking over its pintle-hinge 3b as the tappet-roller 4 rides up over the tappet-cam 6, which, operated by the tappet-roller 4 at one end and by the gravity weights 5c and the auxiliary weight 60 at the other end, rocks up and down over its pintle-hinge 6b to lock the cone-boxes of the rotary cone-baking machine as they swing past the tappet-cam 6 supported. by the upright stationary bracket 2a, a fragment of which is shown in Figs. 1 and 2. To lock the cone-boxes securely, the ultimate pressure is put upon, the tappet-lock as the tappet-roller passes over the secondary incline Ba of the tappet-cam 6, shown in Fig. 3. These cone-boxes are unlocked for delivering the baked cones along another are of their circle of rotation, by means of a similar tappet-cam inverted, along the under side of which this tappet-roller passes to force the looking hook 3afrom the bolt-catch on. the cone-box I, so that the swinging side of the box may be opened as shown in Fig. 2.

We can now clearly understand what a severe friction was generated formerly between the solid rectangular block I at the inner end of the old type of tappet-lock on the cone-box and the stationary tappet-cam 6, in the operation of forcing the pressure for locking and unlocking these cone-boxes with a tappet-lock; and we can, also, fully understand the desirability, usefulness and efficiency of my new tappet-roller now installed on the inner end of the tappetlock 3 for contacting the stationary tappet-cam 6, in the operation of locking and unlocking said cone-boxes.

Around the circular, rotary cone-baking machine these cone-box'es are. arrangedin series, each box being mounted on a separate radial arm extending out from the center of said machine, a fragment 2 of said arm being shown in Figs. 1 and 2 of the drawing.

In closing, I think I should add that in thisdescription of my new and useful improvement in tappet-locks for cone-boxes in a cone-baking machine of the character described it should be well understood that the specific detail of the various parts of the instant embodiment of my present invention, as I have illustrated in the drawing thereof and fully described, are not to be considered as limitations in the construc-. tion of my new improvement in. tappet-locks for cone-boxesin a cone-baking machine; and that while keeping within the scope of my invention and claim, I may make desirable modifications in these details to facilitate quantity-production or to economise in the fabrication of the parts thereof, provided I keep within the spirit of my invention.

Now, having thus described the Various features and possibilities of my invention, the de tail construction, arrangement and combination of its parts as well as their functions and the ways and means of assemblage, operation and application; these features and accessories of my new improvement intappet-locks for cone-boxes, on which I desire Letters Patent granted to me, I have set forth and specifically pointed out in the following claim:

I claim:

An improvement in a tappet-lock of the character described for locking cone-boxes in a rotary cone-baking machine provided with a sta-a

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