US1292802A - Machine for forming fruit and berry basket top binding-strips. - Google Patents

Description

G KLANG'. MACHINE FOR FORMING FRUIT AND BERRY BASKET TOP BINDING STRIPS.

APPLICATION FILED FEB. 6. I9!!- Iatented Jan. 28, 1919.

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APPLICATION FILED FEB- 6.I9I1- 1,292,802. Patented Jan. 28,1919.

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G. KLANG. MACHINE FOR FORNHNG FRUIT'AND BERRY BASKET TOP BINDING STRIPS.

APPUCAHON HLEU FEB. 5 1917- 1,292-,802. Patented Jan. 28,1919.

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G. KLANG. MACHINE FOR FORMING FRUIT AND BERRY BASKET TOP BINDING STRIPS.

APPLICATION FILED FEB-6.19M-

Patented Jan. 28, 1919.

m! Mann; "nu co. PNOIO-urnm WAxmNcmm u c UNITED STATES PATENT OFFICE.

GUSTAF KLAN G, 0F TROPICO, CALIFORNIA.

MACHINE FOR FORMING FRUIT AND BERRY BASKET TOP BINDING-STRIPS.

Application filed February 6, 1917.

To all whom it may concern.-

Be it known that I, GUSTAF KLANG, a citizen of the United States, residing at Tropico, in the county of Los Angeles and State of California, have invented a new and useful Machine for Forming Fruit and Berry Basket Top Binding-Strips, of which the following is a specification.

This invention relates to a machine for forming the binding strips or tin rims for berry boxes out of strips of scrap tin.

In can factories, berry box factories and other factories where sheet tin is used, there is usually a waste strip of irregular width left from each sheet that is cut and such strips are wide enough to make berry box binding strips or rims.

An object of this invention is to provide a machine into which narrow strips of scrap tin or other sheet metal may be fed by an inexperienced person without any likeli-' hood of misforming the pieces by reason of their being improperly fed into the machine. That is to say, the scrap tin which this machine is intended to operate upon may be of different widths and of different lengths and the finished binding strip for the berry boxes is required to be of practically uniform width, but may be of various lengths. The machine is adapted to cut the irregular strips to a uniform width and to fold them longitudinally along their midwidth to a U-shape.

In actual practice in a berry box factory sheets of tin are fed to a machine which cuts and folds the tin rims and this machine always leaves an unfinished last strip from each sheet. Such strip is usually tapering from end to end, but the narrow end is wide enough to make the required fold.

An object ofthis invention is to trim this strip to uniform width and to fold and finish it ready to be used in forming a berry box rim. This machine is not intended to make more than one finished strip from a scrap. An object is to insure against admitting a second strip until the preceding strip is folded and expelled.

Further objects, advantages and features of invention may appear from the accompanying drawings, the subjoined detail description and appended claims.

The invention includes the machine herein described and 'i'arious parts and combinations of parts going to make up the same.

The accompanying drawings illustrate the inven ion,

Specification of Letters Patent.

Patented Jan. 28, 1919.

Serial No. 147,021.

Figure is a top plan view of a berry box rnn machine embodying the principles of my invention.

Fig. 2 is a fragmental cross-section on line indicated at Figs. 1, 5 and 8, through the upper part of the machine.

Fig. 3 is a front end elevation as indicated by the feathered arrows 3 in Figs. 1, 5 and 8. The parts are shown in non recelvmg position.

Fig. 4 is a fragmental elevational detail, partly in section on line indicated at w, Figs. 1, 5, and 8, and showing the trimmed strip feed rollers without a strip between them.

Fig. 4 is a fra'gmental detail, analogous to Fig. 4 and showing the rollers holding a trimmed strip between them, and thereciprocating folder blade moved upwardly andinto contact with the strip.

Fig. i is analogous to Figs. 4 and 4 and shows how a strip that has not been fed past the rollers is being bent and pushed out upwardly between them by the reciprocating folder blade.

Fig. 5 is a fragmental side elevation as indicated by the feathered arrows 5 in Figs. 1, 3, 1' and 6,- and partly sectioned on line m, Fig. 1.

Fig. 6 is a fragmental elevation, partly in section, on line 00, Figs. 1, ,5 and 8.

Fig. 7 is an enlarged detail of parts of the strip foldin device as shown in Fig. 6.

F ig 8 is a side elevation from the side opposite that of Fig. 5 as indicated by the feathered arrows 8 in Figs. 1 and 3.

Fig. 9 is a detail of a,guide finger mountmg.

Leading features of my berry box rim strip machine are the intermittent scrap feeder 1, the scrap trimmer 2, the trimmed strip feeder. 3, and the strip folder 4, mounted and timed in operative relation to each other upon the stand 5 and driven from the shaft 6.

The details of the intermittent scrap feeder 1 are as follows:

The feed table 7 is rigidly mounted in a horizontal position and has a fiat upper feed surface 8 and a wedge-shaped ledge 9 extends upwardly at one side of this feed surface, and a wedge-shaped feed gage 10 is slidingly mounted upon the feed surface 8 against the diagonal face of the ledge 9 and held adjustably in place by set screws 11 passing through a slot in the ledge 9 and screw-seated in the gage 10, so that by ma nipulating the set screw 11 the feed face 12 of the gage may be moved laterally upon the feed surface 8. The scrap tin strip 13 is placed upon the feed table with a straight edge against the feed gage and is held by the operator until the machine takes hold. This occurs instantly in practical operation. The spring pressed guide fingers 14 are bars swingingly mounted upon the feed table top upon vertical pivots 15, and extending in diagonal lines so that the free ends of the" bars will drag against one edge of the strip, and press the other edge thereof against the feed gage, as the strip moves into the machine; as to the left in Fig. 1. An outer friction roller 16 is mounted and recessed into the top of the feed table 7 with its periphery extending just above the surface 8 and in the line of travel of the tin strip 13.

The bottom of the fingers 14 are seated in recesses 14 in the top of the table so that the edge of the strip will not work under the fingers which are pressed toward the gage 10 by springs 15' adjustably supported by the pivots 15.

The intermittent feed roller 17 is mounted upon the shaft 18 and located in opposition to the roller 16 so as to draw the strip 13 be tween the rollers, when the feed roller 17 is operated for that purpose. A bearing bracket 19 extends from the stand 5 and carries a pivot 20. A swinging bearing frame 21 is mounted upon the pivot 20, and the shaft 18 is mounted in this frame so as to move the feed roller 17 to and from the anti-friction roller 16 as required to grip or not grip the strip. A cam lever 22 is connected at one end to the frame pivot 23 and carries an anti-friction roller 24 at the other end, and a link 25 connects the lever 22 to the swinging frame 21. The roller 24 rests and runs upon the cam 26; three-quarters of the periphery of said cam 26 being the high line 27, as required to hold the feed roller 17 elevated, and one-quarter of said periphery being the low line 28, as required to lower the feed roller 17 to grip the strip 13.

A belt pulley 29 upon the shaft 6 drives the feed roller 17 through the belt 30 running over the guide pulley 31 to the pulley 32 upon the shaft 18, and over the belt tightener pulley 33. The cam 26 is fixed upon the cam shaft 34 and the cam shaft 34 is connected to the driving shaft 6 by the bevel gears 35 and 36.

The details of the scrap strip trimmer 2 are as follows:

The trimmer bearing block 37 is mounted vertically and rigidly upon the stand 5 and the horizontal arms 38 extend from the block 37 and support the second trimmer bearing block 39. The lower cutter shaft 40 and the upper cutter shaft 41 are mounted in the bearing blocks 37 and 39 in horizontal parallel positions crosswise of the machine washer 43 is placed against the shoulder 42,

and parallel with the feed roller shaft 18, and equal distances above and below the level of the face of the feed table 7. A shoulder 42 is formed upon the shaft 40, a

70 a feed or guide roller 44 is placed against the washer 43, a cutter disk 45 is placed against the feed roller 44, a washer 46 is placed against the cutting disk 45, and a nut 47 is screwed upon the end of the shaft 40 against the washer 46 to hold the cutter tight, the feed roller 44 being of slightly less diameter than the cutter 45. A shoulder 48 is formed upon the shaft 41, a washer 49 is placed against the shoulder 48, a second cutting disk 50 is placed against the washer 49, a guide roller 51 is placed against the cutter 50, and a nut 52 is screwed upon the end of the shaft 41 to hold the cutter tight, the second cutter 50 co-acting with the first cutter 45. The gear 53 fixed upon the drive shaft 6 drives the gear 54 fixed upon the lower trimmer shaft 40 and the gear 54 drives the gear 55 upon the upper trimmer shaft 41. The opposite end of the lower shaft 40 from the cutter 45 is screw-threaded to form the adjusting screw 56 projecting beyond the bearing block 39, an adjusting nut 57 is seated upon the screw 56 against the bearing to pull the cutter 45 against the cutter 50 as required to make tight fitting the shearing edges, the cutter 45 being outside of the cutter 50, and a jam nut 58 fits against the adjusting nut 57. The shaft 41 extends not quite through the bearing block 39. The flanged adjusting nut 59 is secured to the bearing block 39 by screws 60. The adjusting screw 61 is seated in the nut 59 against the end of the shaft 41 and a jam nut 62 fits upon the screw 61 against the nut 105 59, and the head 63 serves as a handle for manipulating the screw so as to move the cutter 50 toward the cutter 45.

The width of the finished strip 13 cut from the scrap strip 13 may be regulated 110 to a nicety by adjusting the cutters to move the cutting line relative to the feed gage 10, and the path of the finished strip may be varied by adjusting the feed gage and cut ting line. The finished portion. of the scrap 115 tin passes between the periphery of the cutter 50 and the periphery of the guide roller 44 as required to feed and guide. the strip in its path, and the waste cutfrom the tin scrap strip passes between the periphery of 120 the cutter 45 and the periphery of the giiide roller 51. The scrap tin may be more or less wavy or bent up and down and this combination of guide rollers and cutters may be set to flatten the tin, hold it firm 125 and pass it along.

The details of the trimmed strip feeder 3 are as follows:

The vertical bearing blocks 64 and 65 have overlapping ears 66 through which a pivot 130 bolt 67 is inserted and rigidly fixed in the stand 5 so as to pivotally mount the bearing blocks in vertical parallel positions a short distance back of the trimmer 2, the lines of oscillation being to and from each other and crosswise of the path of the strip, and the extent of said oscillation being comparatively slight. The tie bolt 68 is inserted through an ear 69 on the bearing 64 and through an ear 70 on the bearing 65, at a point above the pivot 67, and a nut 71 on the outer end of the bolt adjusts and limits the spread of the bearings. An expansive spring 72 is inserted between the bracket 73 and the bearing 64 to steady the bearing and'to cause it to oscillate toward the path of the strip, and a retractile spring 74 is inserted between the lugs 75 and 76 upon the bearings to pull the bearings together, thus also causing the bearing 65 to oscillate toward the path of the strip. The shafts 77 and 78 are mounted in the bearings 64 and 65, said shafts being connected together by the gears 79 and 80, and a bevel gear 81 on the lower end of the shaft 77 meshes with a bevel gear 82 upon the countershaft 83 having a spur gear 84 meshing with an idler 85 meshing with the driving gear 53, so as to run the shafts 77 and 78 continuously with the drive shaft 6. The feed rollers 86 and 87 are fixed upon the upper ends of the shafts 77 and 78 upon a horizontal level to engage the edges of the flat tin strip so as to drive said strip along a guideway 96 provided therefor, and the feed rollers carry upper circular retaining and folded strip driving rims 88 and 89 projecting toward each other, to engage the sides of the folded tin strip to drive the same on .along the slot 95 between the rigid folder edges 97, 98. Adjusting nuts and lock nuts 90 and 91 upon the shafts 77 and 78 rest upon the bearing blocks 64 and 65 and form thrust bearings to adjust the level of the rims relative to each other and to maintain the proper level in the machine. The axes of the feed rollers 86 and 87 are substantially vertical and the plane of the finished strip to be passed along is horizontal so that the rollers engage the edges of the strip.

The pivot 67 connected to the bearing block 64, 65, is arranged at one side of the guideway, being considerably below the horizontal plane of such guideway, so that the rollers may oscillate toward and from each other transversely. Said pivot is spaced from said horizontal plane of the guideway a considerable distance so as to minimize the oscillation of the bevel gear 81, so that such oscillationwill not interfere with the engagement of the bevel gears 81 and 82.

The details of the strip folder 4 are as follows The folder frame bars 92 andv 93 are mgidly mounted upon the stand in horizontal parallel positions so as to form the vertical longitudinal slide-way 94 and the narrow slot 95 extending upwardly from the slideway, and the tin strip path or guideway 96 extending the length of the slot 95 in parallelism therewith and across the slot, the path 96 being on a level with the finished tin strip as it comes from the trimmer, and said path leading the tin between, through and beyond the rollers 86 and 87. It should in this connection be noted that the action of the springs 72 and 74 is only sufficient for the proper feeding of the strips through the rollers, and that the strips will I not buckle or be otherwise deformed on account of an excessive pressure of the rollers, so that binding of the strips in the guideway previous to their reaching position for folding is thus prevented. The rigid folder edges 97 and 98 which form the sides of the upper part of the slot 95, are carried by plates 99 and 100 secured to the frame bars 92 and 98 and cover the path 96 from each side to points in vertical alinement with the slot 95. The roller rims 88 and 89 are recessed up into the plates 99 and 100, so that the rims will not interfere with the travel of the tin in the path. The reciprocating folder head 101 fits in the slideway 94. The pivot shaft 102 is mounted horizontally longitudinally in the stand 5 parallel with the cam shaft 84, said pivot shaft and said cam shaft being on opposite sides of and below the folder head. The cam levers 103 and 104 are mounted upon the pivot shaft 102 and extend crosswise of the machine and have rollers 105 and 106 riding upon the cams 107 and 108 carried by the cam shaft 34, so that the lovers vibrate as the cam shaft rotates. The levers 103 and 104 are connected to the folder head 101 by adjustable rods 109 and 110, so that the head reciprocates up and down as the machine runs. The folder blade 111 is carried by the folder head 101 and extends through the slot 95, so that as the head reciprocates the blade presses upwardly at the center of the finished strip and presses the strip upwardly against the plates 99 and 100 and then presses the tin between the edges 97 and 98 thus folding the strip to an inverted U-shape in crosssection and discharging the folded finished strip 112 upwardly out of the machine. By adjusting the gage 10 and the cutting line of the trimmer the path of the trimmed strip may be nicely adjusted relative to the folder blade, so as to bend the strip exactly in center; that is to say, along the longitudinal axis thereof. The parts may be readjusted to change the width of the strip.

As is best shown in Fig. 3, the folder-operating positions of the cams 107 and 108 on the shaft 34, relative to the scrap feederoperating position of the cam 26 on the same shaft, are such that the folding of the trimmed strip 13 will not occur until the strip is entirely in the path of the reciprocating folder blade 111. Fig. 5 shows the strip 13 as having passed the grip of the feed rollers 86 and 87, but, although this position of the strip preparatory to the folding operation is most desirable, a slight variation therefromis immaterial, since the blade 111 is sufficiently long to provide for a contingency of this kind, so that, if for some reason the trimmed strip has not been fed past the rollers 86 and 87 the folderblade will simply push upon the strip between the rollers, which yield to such pressure owing to the action of the springs 7 2 and 7 1 and allow the strip during the bending operation to pass upwardly between the rollers, as is most clearly illustrated in Figs. r and 4.", whereafter the strip is finished and pushed out upwardly, as shown in Figs. 6 and 7.

The roller faces at 86, 87 serve to engage the edges of the fiat tin strip to advance it along the guideway 96, and the rims 88, 89 perform the same oflice for the folded tin strip; so that the rollers act on the strip, when the same is either folded or unfolded, as the case may be.

Since the rims 88, 89 are of greater diameter than the rollers proper at 86, 87 it is evident that when the rollers are rotating and engaging the folded strips, such strips are always driven at a higher speed than are the flat strips, thus insuring against any possibility of the fiat strips overtaking or jamming the folded strips.

I claim:

1. In a machine for trimming and folding thin strips of sheet metal, a guideway extending in a plane longitudinally from the cutting mechanism of the machine to a reciprocating folder; feed rollers rotatable in bearings mounted upon a common pivot at one side of the guideway so that the rollers may oscillate transversely to the guideway; and means for causing the feed rollers to engage the opposite side edges of the strips without buckling or otherwise deforming the strips, so that the strips are thus passed longitudinally in the guideway to the reciprocating folder.

2. In a machine for trimming and folding thin strips of sheet metal, a guideway extending in a plane longitudinally from the cutting mechanism of the machine to a reciprocating folder; feed rollers rotatable in bearings mounted upon a common pivot at one side of'the guideway so that the rollers may oscillate transversely to the guideway; and resilient means for causing the feed rollers to engage the opposite side edges of the strips without buckling or otherwise deforming the strips, so that the strips are thus passed longitudinally in the guideway to the reciprocatin folder.

3. In a machine or trimming and folding thin strips of sheet metal, a guideway extending in a horizontal plane from the cutting mechanism of the machine to a vertically reciprocating folder; feed rollers rotatable in bearings mounted upon a common pivot below the guideway so that the rollers may oscillate transversely to theguideway; and means for causin the feed rollers to engage the opposite si e edges of the strips feed rollers to engage the opposite side edges of the strips without buckling or otherwise deforming the strips, so that the strips are thus passed longitudinally in the guideway to the reciprocating folder.

5. In a machine for folding thin strips of sheet metal, the combination with means forming a guideway for a strip of tin and also forming a slot extending in parallelism with the guideway, the longitudinal planes of said guideway and slot intersecting each other, of means to intermittently move the strip along the guideway, and a folder blade reciprocating in said slot and across said guideway to fold a strip of tin in said guideway and to push the folded strip out of the guideway and into the slot at the reciprocation of the blade while the means for moving the strip along the guideway is inactive.

6. In a machine for trimming and folding thin strips of sheet metal, a folder construction having a reciprocating blade and being adapted to discharge the folded strips upwardly, a feeder construction having o cillating rollers, the axes of which are parallel with the line of reciprocation, and a cutter discharging to the feeder.

7. In a machine for trimming and folding thin strips of sheet metal, a folder having a reciprocating blade and being adapted to discharge the folded strips upwardly, and a feeder having oscillating rollers, the axes of which are parallel with the line of reciprocation.

8. In a machine for folding tin strips, the combination with a folder, of two rollers provided with main bodies adapted to engage the edges of a flat strip, and also provided with rims of larger diameter toengage the sides of the strip when folded, so that the folded strip will be moved along more rapidly by the rollers than will the unfolded strip, said rollers being yieldingly held to engage the stri and to allow the same to be folded into the space between the rims.

9. The combination in a tin strip folding machine having a slot through which the folded strip may be moved; a folder; means to reciprocate the folder in the slot, rollers having faces to engage the edges of a flat tin strip 1n the path of the folder, and circular rims 'projectin toward each other; means to Y yieldingly 1101 the rollers toward each other and to allow the flat strip to be folded into 15 position in said slot; said rims being adapted to engage the sides of the folded strip; and means to rotate the rollers.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 20 20th day of January, 1917.

GUSTAF KLANG.

Witness:

JAMES R. TOWNSEND.

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

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