US2407174A - Envelope machine - Google Patents

Description

Sept. 3, 1946.

J. L..QBERE'NDER` ENEVELOPE MACHINE Filed 8. 1611 23, 1944 sheetsfsheet 1 Sept. 3, 1946. J. OBERENDER A ENEvELoPE MACHINE 2 sheets-shear 2 Filed March 2s, 1944 Sv. 4 5w.

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Patented Sept. 3, 1946 UNITED STATES PATENT `FFICE ENVELOPE MACHINE John L. Oberender, Baltimore, Md., assignor to Oles Envelope Corporation, Baltimore, Md., a corporation of `Maryland Application March Z3, 1944, Serial No. 527,755

11 Claims.

successive folding or other` operations are illus-A trated by the patent to Goss Re. 18,463 dated May 17, 1932.

Among the objects of the instant invention are to make a turning device which will be positive in operation and which will impart the precisely required turn to the sheet or envelope whether it be 90 or substantially any other arcof aA circle that might be desired. Other objects are to make such a device that may be adjusted for any size of envelope or sheet and that will accommodate Another Objectis to make a turning device which will not lose its adjustment regardless of the period of' its operation after once being placed in proper adjustment. to provide a turning section which continuously forwards the sheets during the turning and which may be timed to receive the sheets from the preceding operation of the complete machine and pass them on to that machine intimed'rel'ation for the next following operation.

Other objects and advantages of the invention will be apparent from the following description :and the accompanying drawings in which Figure Figure 2 shows 1 shows a plan view of the device. a cross-sectional view substantially on line 2-2 of Figure 1.V Figure 3 is an inverted sectional View ofthe gear train.

In the drawings similar numerals refer to similar parts throughout the several views.

Envelopes are received from a folding machine after having been foldedV on two edges as illustrated in dotted lines by the envelope I. The carrier belts of the envelope `machine such as those at I2 in the above patent to Goss are shown at 2. These delivery belts 2 pass the envelopes between them in the direction shown by the arrow in Figure 2 between the horizontally mounted plates 3, the upper plates 3 beingV supported by rods 4 projecting from the sides 5 ofthe machine, the lower plates 3 are supported from the bottom part of the machine. 'I'hese plates. maintain the envelopey in its folded condition. The plates3'. are

Another object of the invention is their speed differential.

divided, or spaced, substantially at their center longitudinally of the machine and beneaththis space belt E passes to continue the forward movement of the envelope'. The belt 6 is held up by rolls 1, and is heldtaut by roll 8. Longitudinally adjustable rolls 9 bear upon the upper face of the "envelopes to hold them in frictional contact with the belt 6 to insure their continued forward movement. The brackets In holding rolls 9 are adjustable on rod I I which is pivoted to shaft I2 mounted in the sides of the' machine.

The turning mechanism proper consists of the tworolls I3 and I4. By means of the gear train shown in Figure 3 roll I3 is driven at a surface speed four times that of roll I4. Roll I3 l is mounted onf shaft I5 androll I4 on hollow shaft from the folding machine to the folding machine so that they will be received and delivered in timed relation with the other mechanisms of the folding machine.

Rolls 23 mounted in brackets 24 bear upon the sheet or envelope :as it passes over rolls I3 and I4. These rolls 23 are held in frictional engagement with the envelopes by springs 25. Brackets 24 are laterally adjustable on shaft I2 and the location of their lateral adjustment determines the angle of turn given the envelopes as they pass over rolls I3 and I4. There is slippage between both turning rolls and the envelopes, rolls 23 forming as it were pivot pointsholding the envelope in contact with the two turning rolls at the desired points so that they will give the desired degree of turn to the envelopes due to Lateral movement of rolls 23 varies the location of the pivot points on the envelopes and consequently the points where they are gripped by the turning rolls and consequently the degree of turn given the envelopes. A partially turned envelope is shown at 26 in Figure 1.

Belt 6 passes between rolls I3 and I 4 so that it does not interfere with the turning operation. Beyond the rolls I3 and I4 are similar plates 3 to receive the envelope and continue to maintain it in its folded condition. Belt 6 now again sup- Ported. by: rolls I continues the forward movement of the envelope, rolls 1 are omitted betweenl 34 driven from the receiving part of the folding machine proper.

Squaring up means or truing ngers .35 are mounted in brackets 36 fast to shaft 31.. Rocker arm 38 bearing on cam 39 raise the lingers periodically from the path of the envelopes to allow their passage therebeyond.

Chains 34 on which are the pins 33 withdrawing the envelope in timed relation from thetruing mechanism, feed itv to the next folding or other operation of the envelope machine in a manner similar to chains 4| in the above designated patent of Goss. Cam 39 is driven by sprocket 40 and cam 32 is driven by sprocket di and both sprockets 50 and 4| are driven by chain l2 passing over sprockets 43 and 44 and under sprocket 45 in the gear train shown in Figure 3 so that the cams are driven in timed relation' with the turning device which is, as stated, driven in timed relation with the other parts of the folding machine. S

Shafts 3G and 3'! and their rocking mechanism, are mounted in brackets 46 and which are adjustable lengthwise of the machine, so that it may be accommodated to envelopes of dilerent sizes. The position of the sprockets at the ends of chains 34 may likewise be moved to accommodate the machine to different sized envelopes.

With envelopes of different sizes it may be desirable to double the speed of this squaring up device and to accomplish that purpose cluster gear 48 is keyed to shaft i9 and has large gear 53. Gear is shown in mesh with gear 52 fast to shaft 2). This drives the squaring up and releasing mechanism in timed relation with the rest of the machine when operating on certain sizes of envelopes. When operating on other sizes of envelopes the releasing and squaring up mechanism may be operatedtwice as fast by moving the cluster gear 'so that the large gear meshes with small gear 9. The cluster gear may be moved by means of the tongue on bracket 53 which is adjustable on shaft 54 by screw 55.

It will be apparent that the longitudinal position of rolls 9 may be varied for different sizes of envelopes and that the lateral position of rolls 23 may be varied for similar reasons or to give a diierent degree of turn to the envelopes. A completely turned envelope is shown in dotted lines at 56 in Figure l after having been squared up by iingers 35 and released therefrom and after being engaged by pins 33 to carry the envelope forward for the folding or other operation. It will be apparent that a positive feed of a frictional nature is given the envelopes through the turning stati-on which may `be accommodated to any style or shape or size of envelope.

Various modifications may be made in the structure shown without departing from the invention.

What is claimed as new and is desired to be secured -by Letters Patent ist 1. In an envelope machine, a sheet turning section comprising a pair of rolls and means to rotate them to continuously forward and turn the sheet in its own plane, means to feed a' sheet 4 thereto and to receive a sheet therefrom, said rolls being in substantial alignment and having their axes parallel one with the other and with the plane of movement of the sheet, one roll having a forwarding speed greater than the other, and laterally adjustable mean-s, movable laterally to determine the angle of turn, bearing on the sheet opposite said rolls.

2. In an envelope machine, a sheet turning section comprising a pair of coaxial rolls parallel to the plane of sheet movement and means to rotate them to continuously forward and turn the sheetnin its own plane, means to feed a sheet thereto and to receive a sheet therefrom, one of Isaid rolls having a forwarding speed greater than the other, and laterally adjustable means, movable laterally to determine the angle of turn, bearing on the sheet opposite said rolls.

3. In an envelope machine, a sheet turning section comprising a pair of conveyors and means for moving them at different forwarding speeds to simultaneously move the sheet forward and turn the same in its own plane acting upon one facelof the sheet, means 'ao feed a 'sheet thereto and to receive it therefrom, and means movable transversely of the sheet on the face opposite said conveyors to hold the sheet in contact with both the conveyors, the transverse position of said means varying the degree of turn given the sheets.

4. In an envelope machine, a sheet turning section comprising means to turn a sheet in its own plane, a substantially centrally located belt and means to hold a sheet in contact there with, said belt carrying a sheet to and from said turning means, said turning means comprising a pair of conveyors and means for moving them at different forwarding speeds to simultaneously move the sheet forward and turn the same acting upon one face of the sheet and means movable transversely of the sheet on the opposite face thereof to hold the sheet in contact with bothy the conveyors, the transverse position of said means varying the degree of turn given the 5. In an envelope machine, a sheet turning section comprising means to turn a sheet in its own plane, means holding the sheet above and below forming a passage Way through which to pass a sheet to the turning means, an adjacent travelling member to carry a sheet through said way to the turning means, said turning means having a pair of conveyors and means for moving them at different forwarding speeds to simultaneously move the sheet forward and turn the same acting upon one face of the sheet and said travelling member passing between said conveyors.

6. In an envelope machine, a sheet turning section comprising means to turn a sheet in its own plane, means holding the sheet'above and below forming a passage way through which to pass a sheet tothe turning means, an adjacent travelling member to carry a sheet through said way to the turning means, said turning means having a pair of conveyors and means for moving them at different forwarding speeds to simultaneously move the sheet forward and turn the same acting upon one face of the sheet and means movable transversely of the sheet on the opposite face thereof to hold the sheet in contact with the conveyors, the transverse position of said means varying the degree of turn given the sheets,

7. In an envelope machine, a sheet turning section comprising means to turn. a sheet in its down plane, means holding the sheet above and below forming passage ways through which to Dass a sheet to and from the turning means, an adjacent conveying member to move a sheet through said ways to and from the turning means, said turning means comprising a pair of conveyors and means for moving them at different forwarding speeds to simultaneously move the sheet forward and turn the same acting upon one face of the sheet, and means to hold the sheet in forward and turning relation with the conveyors.

8. In an envelope machine, a sheet turning section adapted to receive partially folded sheets from the envelope machine and to pass them on for further operation after turning, means to hold the sheets folded as received from the envelope machine, means to turn the sheets in their own plane, means to forward sheets to the turning means, said turning means comprising a pair of conveyors and means for moving them at different forwarding speeds to simultaneously move the sheets forward and turn the same acting upon one face of the sheets and means movable transversely of the sheets on the opposite face thereof to hold the sheets in contact with the conveyors, the transverse position of said means varying the degree of turn given the sheets.

9. In an envelope machine, a sheet turning device adapted to receive partially folded sheets from the envelope machine and to pass them on for further operation after turning, means to hold the sheets folded as received from the envelope machine, means to turn the sheets in their own plane, means to forward sheets to the turning means, said turning means comprising a pair of conveyors and means for moving them at different forwarding speeds to simultaneously move the sheets forward and turn the same acting upon one face of the sheets, and means to hold the sheets in forwarding and turning relation with the conveyors.

10. In an envelope machine, a sheet turning section comprising a pair conveyors and means for moving them at different forwarding speeds to simultaneously move a sheet forward and turn the same in its own plane acting upon one face of the sheet, means to feed the sheet thereto and to receive the sheet therefrom, squaring up means extending in the path of forward movement of the sheets and means to release said squaring up means and means movable transversely of the sheet on the opposite face thereof to hold the sheet in Contact with both the conveyors, the transverse position of said means varying the degree of turn given the sheets.

11. In an envelope machine, a sheet turning device comprising a pair of rolls and means to rotate them to continuously forward and turn the sheet in its own plane, means to feed a sheet thereto and to receive a sheet therefrom, said rolls being in substantial alignment and having their axes parallel one with the other and With the plane of movement of the sheet, one roll having a forwarding speed greater than the other and means, movable laterally to determine the angle of turn, bearing on the sheet opposite said rolls, squaring up means extending in the path of forward movementof the sheets and means to release said squaring up means.

JOHN L. OBERENDER.

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