US1700854A - Bread-fastening machine - Google Patents

Description

O. F-. ROHWEDDER BREAD FASTENING MACHINE Feb. 5, 1929. v 1,700,854

Filed Jan. 26. 1928 FIG. 4

INVENTOR.

PATENT OFFICE.

OTTO F. ROHWEDDER, OF DAVENPORT, IOWA.

BREAD-FASTENING MACHINE.

Application filed January 26, 1928. Serial No. 248,613.

My invention relates to improvements in bread fastening machines.

The objects of my invention are:

1. To provide an automatic machine for inserting staples lengthwise in a sliced loaf of bread to retain the slices in their original position.

I attain these objects by the means illustrated in the accompanying drawings, in which- Figure 1 is a plan View of my device showing the connecting rod in part in dotted lines, Fig. 2 is a side elevation of my device; Figure 3 is a detail showing the position of a staple ready for insertion into the bread; Fig. 4 is a detail side view of the pusher block; Fig. 5 is an end elevation at the right end of Figure 1.

My machine comprises a preferably hollow cast frame, 58, having a base, 58, slidingly mounted upon the take-off apron, 77, of a bread slicing machine between guides, 76, with a set screw, 75, to lock the frame in its desired position. The casting, 58, is pref-.1.

erably formed with a box-shaped portion having a slot. 56', cut in one side thereof to permit the movement therethrough of the link, 56, and having a lateral extension united to the base to provide a mounting for a drive shaft, 54, and carrying lugs, 60', in which a pushrod, 60, is slidingly mounted. The upper face of the frame is cut away to provide slide-ways, 58", upon which a pusher block, 57, is slidingly mounted. The sides of the frame are united for a part of their length to form a bed, 58. This bed forms a bottom for the magazine, 71, which rests upon the frame at the sides of the slide-ways, 58". The rear end, 71, of the magazine is cut away as shown by. the dotted line in Figure 2, to permit the pusher block to enter the magazine for a short distance. The front end piece of the magazine, 71", has small slots, 73, cut on opposite sides thereof to receive the ends of the staple, 33, but the low-erend of the front end, 71", of the magazine does not extend clear to the bed, 58, and a slight opening is left through which the staple may travel in passing out of the magazine. The magazine has lugs, 70', extending from the lower portion thereof by which it can be fastened to the frame, 58, by thumb screws, 70. The staples are piled one upon another in the magazine, the lower staple resting upon the bed, 58 and the front end of the pusher block, 57, in which a slight recess is formed of a depth corresponding to the thickness of a staple.

The frame, 58, is provided with forward extensions in which is mounted a shaft, 64, which bears upon one end of a spiral gear, 62, and upon its opposite end a spur gear, 72, with a roller, 63, united to the shaft, 64, to rotate between the extensions.

A similar roller, 65, is secured upon the shaft, 66, which is mounted in the upper portion of the frame extensions. Bearing plates, 69, are secured upon the upper face of the extensions and are provided with coiled compression springs, 68, which bear upon suitable bearing members, 68', and act to hold the'rollers, and 63, in juxtaposition. A spiral gear, 62, is mounted upon a vertical shaft, 61, and in mesh with the spiral gear,

62'. The shaft, 61, may be driven by any suitable means and when so driven. will actu ate the spiral gears, and the motion of the lower shaft, 64, will be transmitted to the upper shaft, 66, by the spur gears, 72.

Another power shaft, 54, extends upwardly through the extended base and has mounted upon its upper end a wheel, 55, to which the link 56, is secured by a crank pin, 56".

The opposite end of the link, 56, is pivotally connected at 56 to the under side of the pusher block, 57, so that the revolution of the wheel, 55, will cause the pusher block, 57, to travel reciprocatingly longitudinally of the slide-ways, 58". v

The pusher block, 57, is provided with a notch, 57, at its forward edge which notch is adapted to engage the head of a staple, 33.

In the operation of my machine, the ma gazine," 71, is filled with staples, 33, the lower one of which rests upon the bed, 58", and upon the pusher block, 57.

As the power is applied and the shafts, 54 and 61, revolve, the crank pin carries the link forward and the pusher block travels forward along its guides carrying with it the lowest staple which is driven forward by the pusher'block to a point where the ends of the staple pass betweenthe rollers, 63 and 65,

and the staple is thenseized by the rollers and driven forward until the head of the staple passes out between the rollers.

The staple will then be left projecting a short distance from the leaf of bread and as the next loaf of bread is pushed into position, it pushes the first loaf outwardly and the staple is then driven the remainder of its length into the first loaf by the vertical Ill) ' end of the rod, 60, which is slidingly mounted in the lugs, 60, and has its left end as shown in Figure 1, doubly bent at rightangles.

A pusher arm, 59, has one end rigidly secur'ed to the pusher block, 57, and its opposite end adjustably secured to the rod, 60, so that as the pusher block travels forward, the arm, 59, will carry the rod, 60, forward the same distance that the pusher block travels It is obvious that the form and proportions of various parts of my apparatus may be varied to a considerable extent without departing from the spirit of my invention and the gear wheels, 72, may be omitted so that the upper roller, 65, may be a mere idler, provided sutliciently strong springs, 68, are used to furnish the necessary tension to drive the staples into the bread. Shafts, 61 and 54, may be driven by flexible drives of any kind, which will permit the forward or backward adjustment of this entire appliance upon the take-off apron of the slicing machine.

In practice, I expect to use one of these machines at each end of the loaves of bread as they come from the slicing machine and the staples will be made of a length approximately two-thirds or three-fourths of the loaf of bread to be secured so that they will overlap substantially at the middle of the loaf.

I have shown and claimed a manually operable apparatus for the same purpose in my eo-pending application Ser. No. 249,614 of even date herewith, and therefore do not claim a manually operable apparatus herein.

I claim:

1. A staple driving machine comprising a frame, staple guide-ways formed therein, a pusher block slidingly mounted in the frame in guideways adjacent the rear ends of the staple guide-ways, a pair of cooperating feed rolls mounted in the frame at. the forward end of the staple guide-ways, and means for actuating said rolls.

2. A staple driving machine comprising a frame, staple guide-ways formed therein, a pair of cooperating feed rolls mounted m the frame at the forward end of the staple guide- I frame. staple guide-ways formed therein, a

pusher block slidingly mounted in the frame in guide-ays adjacent the rear ends of the staple guide-ways, means for driving the pusher block longitudinally of the guideways. an auxiliary pusher rod slidingly mounted in the frame, and means connecting the auxiliary pusher rod with the pusher block.

5. A staple driving machine comprising a frame, staple guide-ways formed therein, a pair of cooperating feed rolls mounted in the frame at the forward end of the staple guide-ways, means for actuating said rolls, means for driving a staple along the guideways into contact with the rolls, an auxiliary pusher rod slidingly mounted in the frame, and means connecting the auxiliary pusher rod with the staple driving means.

6. A staple driving machine comprising a frame, staple guide-ways formed therein, a staple magazine secured upon the frame over the staple guide-ways, a. pusher block slidingly mounted upon the frame in the guide ways adjacent the rear end of the magazine, means for reciprocating the pusher block lengthwise of the guide-ways, an auxiliary pusher rod slidingly mounted in the frame, and means connecting the auxiliary pusher rod with the pusher block.

In testimony whereof he affixes his signa- 7 ture.

orro F. ROHWEDDER.

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