US1466081A - Method of making needles for fruit seeders - Google Patents

Description

Aug. 28, 1923.

J. C. BAUMER FETHOD OF MAKING NEEDLES FOR FRUIT SEEDEP Filed Abril 18 192? INVENTOR John C. Enumer- Q ATTC li-ii Patented Aug. 28, 1923.

s ren STATES PHA F I E- JOHN C. BAUMER, ornoonnsrnn, NEW YORK, nssrsNon To. Horses STRONG, or p i noonns'rnn, NE YonK. I

i. METHOD or MAKING NEEDLES ron rnurr si'innnns. 7

Application filed April is, 1922. Serial "No. 554,699. I

To all whom it may concern:

Be it known that I, JOHN C. BAUMER, a

citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Methods of Making Needles for Fruit Seeders, of which the following is a specification. v

The object of this invention is to provide a new and improved method of making needles for use in fruit seeders.

This and other objects of the invention will be fully illustrated in the drawing, described in the specification and pointed out in the claim at the end thereof.

In the drawing:

Figures 1 to 5 inclusive are detail sectional views of the rod from which the needle is, formed, the successive figures illustrating the evolution of the needle from the blank rod to the finished product.

Figure 1 shows the rod with a hole therein drilled from the end.

Figure 2 shows the end of the rod countersunk.

Figure 3 shows the rod with the hole plugged.

Figure 4c shows the finished needle.

Figure 5 is a vertical transverse section of the finished needle.

Figure 6 is a horizontal section on the line 143 4 1: of Figure 3.

Figure 7 is a horizontal section on the line 15 -15 of Figure 4.

In the drawing, like reference numerals indicate like parts.

In the construction of the needle lies the secret of the success of a fruit seeding machine. This needle is made of five individual blades 41 which are formed up out of a single solid rod in the following manner.

' A steel rod 70 of circular cross section and of suitable length is first drilled at one end to a suitable depth to provide an elongated hollow center or pocket 71 therein. This pocket will be as long as the flexible part of the blade to be formed thereon. The end of the rod is then counter sunk as shown in Figure 10 to form the inwardly slanting tips of the blades. This pocket is then temporarily plugged up by the rod or pin 7 2 as shown in Figure 11. After this is done the rod 7 0 is ready to be operated upon to form the individual blades at one end thereof. After this is done the rod is suitably mounted so that a milling cutter or other suitable cutting tool can be moved lengthwiseof the rod to cut it into slits or tines beginning at the countersunk end thereof. In this way and for this purpose five equally spaced longitudinal channels are cut into the perimeter of the plugged end of the rod. During this operation the temporary plug in the center of the rod iscut away along the .lines where the longitudinal channels are formed thus dividing this core into five parts that readily fall out of the hollow center of the rod after the milling operation is completed. This leaves the rod with five equally spaced thin partitions or tines which are grouped around the hollow center or pocket 71 of the rod 70 and form the individual blades illustrated in Figures 4 to 7 inclusive.

The method of forming the complete nee-. dle as above described is necessary because in the milling operation for forming the blades the rod would not retain its shape without having a'solid center intowhich the cutter can cut and steady itself. with the tines during the cutting operation.

On the otherhand, if the rod was not drilled before forming the blades, the solid center between the blades could not be made hollow afterwards on account of the small amount of metal left in the middle of the rod after the cutting operation has been completed.

The blades or tines formed on the needle 7 in this manner are thin and of equal thickw ness throughout their length. The inwardly slanting and polnted outer end of each of the blades is provided with a cutting edge so that in entering the fruit the skin thereof is punctured and slit and is not torn. The. body of each of the blades is made thin enough so that in entering the fruit through the slits made by the pointed and sharpened ends thereof, the slits are not made larger and do not tear the skin. The blades are stiff enough toavoid spreading over the pit but push out the pit ahead of them on the downward movement and maintain sufficient engagement with the pulp to lift it after the pit is pushed out through the bottom of the fruit. This leaves but five slits in the bottom of the fruit when the needle is withdrawn after the pit or stone has been removed by pushing 'it through the top or stem end of the fruit and these slits readily close up and are practically invisible after the fruit has been canned and sealedin the glass jars. ruptured by the passage of the pit and the I tines of theaneedle'but because of the support given to the fruit by an elastic' dia.j

. phragin the injury does notehange the shape The skin in the top of the friiit' is,

fruit which consists of rst drilling the nee- 'dle bar centrally from one end thereof and forming a, hole therein, then plugging the hole and milling a series of flat blades between the plu and the periphery of the bar and then ithdrawing the plug;

In testimony whereof I aflix my signature.

JOHN C. BAUMER.

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