US1751603A - Centering means for blank-cutting dies - Google Patents

Description

E. w. SAUERMAN CENTERING MEANS FOR BLANK CUTTING 'DIES Match 25, 1930,

Fiied April 28, 1928 3 Sheets-Sheet l 1 Ill 2171655 www March 25, 1930. E. w. SAUERMAN 1,751,603

CENTERING MEANS FDR BLANK CUTTING DIES Filed April 28, 1928 3 Sheets-Sheet 2 fines 2 M50 uewna-Tg M'mh 25, 1930. E. w. SAUERMAN CENTERING MEANS FOR BLANK CUTTING DIES Filed Apri l '28, 1923 "E e lafljaaernmn- I5 Sheets-Sheet 5 Patented Mar. .25, 193% STATES PATENT OFFICE ERNEST W. SA'UERMAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO TRANSO ENVELOPE COMPANY, OF CHICAGO, ILLINOIS, .A. CORPORATION OF ILLINOIS GENTERING MEANS FOR BLANK-CUTTING DIES Application filed. April 28,

The present invention relates to a means for centering and properly positioning a die for cutting blanks from sheetmaterial.

It is an object of the present invention to provide a centering means for such dies having certain features of novelty and utility over those known to the prior art.

In some industrial processes, particularly U those in which paper bearing printing, lithographing and the like is to be cut, it is often desirable tocut the sheet of paper at a predetermined point relative to the position of the matter upon the face of the sheet.

Such determination of the point of cutting is especially important in the cutting of blanks for making envelopes, particularly those blanks for making one-piece window envelopes. Incutting such blanks it is highly important that the blank be out in such a manner that. when it is folded, the window will assume the desired position upon the face of the envelope whereby the incl-osure when placed within the envelope will have the address thereon in proper position to be exposed through the window. z

The device of the present invention comprises a centering means pivotally mounted relative to the blank cutting die, said centering means being subjected to a constant spring tension whereby it is returned to normal position after each cutting operation of the die. The centering means may-be universally adjustable to guide the die to positions whereby blanks will be out which will form envelopes with windows spaced any distance desired from their lower, upper or side edges.

As a feature of the present invention the centering means is vertically adjustable to permit its base to rest flatly upon the sheet of material to be cut when an adjustment is made for positioning the window differently than it was positioned for a preceding cutting oporation.

The centering means may be assembled and disassembled very quickly, being completely removable from the die, if necessary, for repair or replacement. I

As another feature of the present invention, 5 the'centering means may be variabletrans- 1928. Serial No. 273,471.

versely and longitudinally. The device of the present invention also permits the use of a transverse and longitudinal scale by which the adjustments may be gauged,

Other objects, features andadvantages of the present invention will be more apparent from the following detailed description.

In the drawings, Fig. 1 is a plan view illustrating a sheet of paper with a series of transparent windows formed thereonand the use of the centering means of the present invention with a blank cutting die. I

Fig. 2 is a cross sectional view of a blank cutting die employing the centering device of the present invention, the die being in a position ready to cut through a stack.

Fig. 3 is a view similar to Fig. 2 showing the die and centering device after the die has cut through the stack.

Fig. 4: is a fragmentary front elevational 7 view of the centering device.

Fig. 5 is a cross sectional View taken on line 5-5 of Fig. 4. r

Fig. 6 is a cross sectional View taken on line 6-6 of Fig.4.

Fig. 7 is a view of one of the blanks cut by the blank cutting die showing some of the various positions ofthewindow.

Fig. 8 is a top plan view of one specific form of centering means, the die being broken so awa I Fig. 9 is a vertical sectional-view of the blank cutting die showing the normal position of the centering means. a

Fig. 10's a cross sectional view taken on 35 line 101O of Fig. 8. 1

Fig. 11 is a plan view of one of the removable longitudinal centering elements.

As heretofore stated, the present invention in one specific embodiment thereof is directed particularly toward a die which is used for cutting blanks for so-called one piece Window envelopes, which'is that class of envelopes having a portion of the front face made transparent so that when an enclosure is placed within the envelope the address upon the enclosure will show through the window and thus dispense with the writing of the address upon the face of the envelope. In manufacturing envelopes of this character it is highly important that the blank be cut in a manner so that when folded the window will assume the proper position upon the face of the envelope relative to the upper and lower, as well as the side, edges of the envelope, for if such a position is not assumed, the enclosure when folded and placed within the envelopewill not have the address thereon in proper position to be exposed through the window. It is, therefore, of material importance to properly center the cutting die with respect to these windows.

Referring more in detail to the drawings, and particularly to Fig. 1, a sheet 1 of suitable material, such as paper, is illustrated having formed thereon a series of transparent surfaces or portions 2 which are of a size and shape to constitute the windows of the envelope. The most expeditious way of manufacturing these envelopes is to form a plurality of transparent portions on a large sheet of paper, then place several sheets so formed in a stack, place the die on top of the stack and by one cutting operation cut out a plurality of envelope blanks.

The transparent surfaces are placed on these sheets in such a manner as to allow the die to be placed in proper position with respect'to these surfaces and yet eliminate, to all practical extent, any waste of material 7 during the cutting operation, the transparent surfaces being spaced apart and positioned in a manner to allow the die to be positioned with respect to the same so that practically all of the stock is utilized for blanks.

, The blank cut from a sheet is illustrated at 3, while a suitable die configured so as to out a blank adapted to be folded into a complete envelope is illustrated at 4.

Referring more in detail to the device of the present invention: A portion of the side wall of the die 4111a be cut away as shown at 5 in which cut away portion 5 may be detachably mounted by suitable means, such as the screws 6, a stationary bracket 7. A

movable'supporting member 8 may be pivotally mounted, by means of a pin 9 on the stationary bracket 7 A screw 10 having a locknut 11 may have threaded engagement with the movable supporting member 8 whereby, as will be more clearly apparent from Fig. 5, the downward pivotal movement of the said member 8 may be limited as desired. A spring 12, one end of which may be anchored to the member 13 carried by stationary bracket 7 and the other end secured to the or more slots 16, and having itstlower portion--- turned out as at 17 may be 'detachably mounted on and secured tothe movable supporting member 8 by means of one or more screws 18, the latter being passed through the slots 16 whereby the said T shaped member 15 may be slidably adjustable relative to the member 8.

The edge of the turned out portion 17 may preferably be beveled, as shown at 19, to aid the operator to rapidly center the die relative to an edge of the window 2 of the sheet 1 from which the blanks 3 are to be out. One or more notches 20 may be provided in the edge 19 to aid the operator to align the said edge 19 with the edge of the window 2.

An L shaped member 21 having a slot 22 may be mountedupon the turned out portion 17 of the T shaped member 15 by means of one or more spaced screws 23, the latter passing through the slot 22 whereby the said member 21' may be slidably adjustable relative to the member 15'. The leg portion 24' of the member 21 may be slightly depressed, i. e., offset, to cause its lower face to be flush with an on substantially the same plane at the lower face of the portion 17, and may have its inner edge beloved, as at 25', and notched, as at 26', for a purpose similar to the beveled edge 19 and notches 20' of the turned out portion 17 The range of adjustment of the L shaped member 21 (Figs. 8 and 9) may be limited by the end 29'-of the said member contacting the wall of the die 4. This limited movement may not permit adjustment to be made which would cover every position of'the window relative to the sides of the envelope. To cover a range of adjustment which may not be possible with the L member 21 illustrated in Figs. 8 and 9, the L shaped member 21 illustrated in Fig. 11 may be used in place of the saidmember 21. said member 21 being used to center from the opposite side of the window relative to member 21. This member 21" may have a similar slot 22, a leg 24', a beveled edge 25 andv a notch 26".

A gauge 27 comprising, for instance, a garduated scale, may be marked oil on the movable block 8 to serve as a guide to the window 2 relative to the upper and loweredges of the envelope while the guide member is being regulated by means of the screw 10.

A similar gauge 28 may be marked off along the upturned edge 17 to serve as a guide to the operator in determining the position of the window 2 relative to the side edges of the envelope while the L shaped member 21 or 21 is being adjusted along the edge 17 In the use of the device: A number of the sheets 1 may be placed in a pile, their windows 2 being all substantially aligned throughout the' said pile. The die 4 is placed over the pile of sheets in the manner shown in Fig. 1, the edge 19 of the centering means being aligned with the lower lateral edge of the transparent port-ion 2, and the edge 25 of the leg 24 being aligned with one of the sides of the said transparent portion 2. By such alignment of the centering means with the transparent portion 2, all the portions of the blanks cut will be in proper correlation to the transparent portion 2 whereby, when the blank is folded, the transparent portions 2 will assume the desired position with respect to the face of the envelope formed.

Upon the proper amount of pressure being applied to the die 4 the die will cut through the pile of sheets 1, the centering means pivoting on the pin 9 to the position shown in Fig. 3 against the tension exerted by the spring 13. N'Vhen the die 4 is lifted from the cut blanks the spring 13 will cause the centering means to pivot back to normal position, the screwlO contacting the inside of the wall of the die 4, as shown in Figs. 2 and 5.

To regulate the position of the transparent portion 2 in the folded envelope relative to the upper and lower edges thereof, the lock nut 11 is loosened to permit the screw 10 to be rotated. Suppose it is desired that the transparent portion 2 on the completed envelope be spaced a greater distance from the lower edge than in a previous batch-by rotating the screw 10 toward the wall of the die 4, the centering means is pivoted upwardly, the edge 19 moving further away from the portion of the wall contacted by the screw 10.

l/Vhen the proper adjustment is secured, the screws 18 are loosened to permit the T shaped member 15 to be slid upwardly and subselower face of the turned out portion 17 lies flat on the stack of paper sheets; the nut 11 is then tightened to lock the screw 10 and the screws 18 tightened to retain the T member 15 lie flat on the surface of the sheet 1 upon which the die 4 is resting. It is obvious that the height of the window on the completed envelope may be lowered by rotating the screw 10 in an opposite direction, the screws 18 being loosened to permit the T shaped member 15 to be slid upwardly and subse quently tightened in that position in which the lower face of the turned out portion 17 will lie flat upon the stack of paper sheets.

In Figs. 1, 2, 3 and 5 I have illustrated the leg or finger 17 as being an integral part of the T shaped member 15. This particular construction may be used in the cutting of envelopes in which the transparent pbrtion is always disposed a uniform distance from each side edge, and it is only necessary to provide for adjustment between the upper and lower edges of the completed envelope. The construction illustrated in Figs. 8 to 11 wherein the finger or leg 24 is part of the removable L shaped member 21, is adaptable for use where it is desired to Vary the position of the shaped in a position in which it will window relative to either side edge with or without adjustment of the position of the windowrelative to the upper and lower edges thereof.

The device ischaracterized by-its simplicity and sturdiness of construction and also by the ease with which-the variousindividual.

elements may be assembledand disassembled for the purpose of repair or replacement.

The provision of the centering means which is adjustable longitudinally and/ or transversely to vary the position of the transparent portion in the completed envelope, eliminates the necessity of manufacturing and keepingin stock a large number of dies having centering means permanently adjusted to take car of the many different dows called for by the trade.

To regulate the position of the window relative to the side edges of the completede'nvelope the screws 23. may be loosened and the 'L shaped member 21 moved to and fro, as

maybe desired. As heretofore explained, the member21 shown in Figs. 8 and 9 may not permit adjustments to be made which cover every position of the window ofthe envelope relativeto the side edgesthereof. To cover a range of adjustment which may not be. covered by the L shaped member 21, shown in Figs. 8 and 9, the L shaped member 21 (Fig. 11) may bev substituted. Thus, the entire range of longitudinal adjustment which may not be covered by one of the L shaped members will be covered-by the other. I

While in the foregoing detailed description I have described the useof the centering device of the present invention with an envelope blank cutting die, it is to be expressly understood that it may be used with any type of blank cutting die adapted to cut blanks from sheet material.

I claim as my invention:

1. In combination, a die having walls, a stationary bracket secured to one of said Walls, a supporting member pivotally connected with said bracket, and a centering means mounted on said supporting member.

.2. In combination, a die having walls, a removable stationary bracket secured to one of said walls, a supporting member pivotally connected with said bracket, and a centering means mounted on said supporting member.

3. In combination, a die having walls, a stationary bracket secured to one of said walls, a supporting member pivotally connected with said bracket, and an adjustable centering means mounted on said supporting member.

4(In combination, a die having walls, a stationary bracket secured to one of said walls, a supporting member pivotally connected wit said bracket, an adjustable centering means mounted on said supporting member, and an auxiliary adjusting means positions of winmounted upon said centering means, said auxiliary means being longitudinally adjustable relative to the centering means proper.

5. In combination, a die having walls, a stationary bracket secured to one of said walls, a supporting member pivotally connected with said bracket, and an adjustable centering meansmounted on said supporting member, said centering means being transversely adjustable. M n t 6. In combination, a die having walls, a stationary bracket secured "to one of said walls, a supporting member pivotally connected with said bracket, and an adjustable centering means mounted on said supporting member, said centering means being transversely adjustable and an auxiliary adjusting means mounted upon said centering means, said auxiliary means being longitudinally adjustable relative to the centering meansproper.

7. In combinatlon, a die having walls, a stationary bracket secured to one of said walls, a supporting member pivotally connected with saidbracket, a centering means mounted on said supporting member, and a tension spring cooperatively associated with the stationary bracket and the supporting member. 7 i

8. In "combination, a die having walls, a

stationary bracket secured to one of said Walls, a supporting member pivotally connected with said bracket, and a centering means mounted on said supporting member,

the lower edge of said centering means ing a portion cut away to form a notch.

In testimony whereof I afiix'my signature.

ERNEST W. SAUERMAN.

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