US1474413A - Sheet-delivery device - Google Patents

Description

Nov. :20 1923.

J. E. DOYLE SHEET DELIVERY DEV-ICE Originl Filed Aug. 20'. 1920 2 Sheets-Sheet 1 Nov. 20 1923.

J. E. DOYLE SHEET DELIVERY DEVICE Original Filed Aug. 20 '1920 2 Sheets-Sheet z Patented Nov, an, 1923.

Nififl STATES arena JAMES E. DOYLE, OF CLEVELAND, OHIO.

SHEET-DELIVERY DEVICE.

Original application filed August 20, 1920, Serial No. 404,931. Divided and this application filed September 26, 1921.

To all whom it may concern:

Be it known that 1, JAMES E. DOYLE, a citizen of the United States, residing at 5718 lVhittier Ave, Cleveland, in the State of Ohio and Cuyahoga County, have invented a new and useful Improvement in Sheet-Delivery Devices, of which the following is a specification. the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

My invention deals with a contrivance adapted to be used in conjunction with a.

machine upon which a sheet or sheets are to be conveyed. The drawings exemplify the application of my invention to a printing press provided with a heater as shown described and claimed in my copending application filed August 20, 1920 Serial No.

404,931 from which this application has been divided.

The general object of my invention is to facilitate the delivery of printed sheets and to insure smooth and regular delivery thereof. Particular objects of my invention are:

1. The provision of devices at the place of delivery or release of a sheet from a conveyer and somewhat elevated relative to the part of the conveyer which is so positioned as to be earlier passed over by the moving sheet. Practice has demonstrated that some control should be had of the front edge of a paper sheet at the moment it is about to be delivered and stacked. in order to avoid a curling of the sheets and consequent likelihood of creasing, folding or entanglement. Such an undesirable result was not only apt to occur owing to the speed of travel of the sheet, but also because if the fly sticks were not properly adjusted according to the size of the sheet the latter was not uniformly supported along its front edge. It is true, that the fly sticks at the delivery end of a printing press have heretofore been made adjust-able, but when the fly sticks were adjusted the necessary stop fingers were also. This was a disadvantage because the spacing of the fly sticks need not and should not in every instance determine the spacing of the stop fingers. Accordingly I have provided for an adjustment of the fly sticks irrespective of the stop fingers. v y

2. I have also discovered that a retarda Serial No. 503,218.

tion of the rear edge of a sheet has frequently occurred and that such action has occasionally resulted in a disalinement and subsequent improper delivery of the sheet. The action appeared to be in the nature of a back draft or suction force. To remedy this I have supplied an elevated surface over which the sheets move prior to reaching the heater and then perforate such surface so as to counteract the tendency just referred to.

Adverting to the drawings:

Figure I is a diagrammatic View in part elevation and part section showing my invention associated with a cylinder press.

Figure II is an enlarged plan view on line 11-11 of Figure I.

Figure III is a still further enlarged (full size) section on line IIIIII' of Figure II.

Only cursory mention will be mad-e of the necessary supporting parts and a few others which aid in making clear the relative position of the elements of my invention.

So much of the main frame of a printing press as is shown in outline I have designated by the reference numeral 1. Afurther portion of the frame is seen to overhang the first mentioned portion adjacent the cylinder 2. The platen 3 is seen somewhat be low and superimposed upon it a number of inking rolls 4: are visible. Rotatably mounted upon the over-hanging portion of the frame and removed forwardly there from are apair of rollers 5 and 6 respectively. These rollers actuate the conventional type of belt conveyer 7, the upper portion of which is" designed to travel in a direction away from the cylinder. Positioned somewhat farther beyond and in the direction of travel of the conveyer 7 is a deposit table 8. The upper surface of this table is provided near its outer edge with an abutting rail 9. Disposed above the table 8 and inclined upwardly toward the cylinder are a pair of lateral tracks 10 the purpose of which will. be hereinafter explained.

A device whose function consists in carrying paper sheets forwardly beyond the location of the roller 6 will now be described. Generally speaking, it involves atraveling carriage provided with a pair of linked arms capable of reciprocating it when actuated in a manner not shown since common to the art. One arm 11 is pivotally mounted to the frame at 12. The free extremity of the arm 11 articulates through the medium of a pivot pin 13 with the second arm 14, and the extremity of this arm articulates in asimilar manner through the medium of a pin 15 with the carriage 16. The carriage 16 involves in its construction forwardly and rearwardly disposed rollers 17 which are adapted to travel upon the tracks 10. The carriage 16 is provided with a depending bracket 20 which supports a rod 21 extending between the members 10. Secured along the rearward portion of the-rod 21 and fixedly maintained in an inclined position are a plurality of alined. sticks These sticks constitute a tableupon which the sheet of-paper P is supported during transit. A pair of clamps 23 and 24 envelop opposite ends of the rod 21 and are bound to the same through the me dium of bolt-s 25 and nuts 26. This connection is best shown in Fig. 11. The upper clamps 23 are longer than the others and extend some distance beyond. Such added 6X- tensions of the clamps 23 I have designated as 27. Supported upon these extensionsand extending across from one to the other is the ..electrical heater which corresponds to that of my earlier application, fiied November 11, 1919 Serial No. 337,273. ltincludes a. ,chan nel support 28- secured by rivets 29 to the extensions 27 as shown in Figure Ill. Disposed. inthe support 28 are a pair ofsuporimposed insulating plates 30 eachiprovided with a series of channels 31 occupied by the resistance coils 32. The latterare caused to glow and radiate heat.

Supported in any suitable manner, in this case .with'rivets 33 is a bent guard 34 including adownwardlyextending end 35 disposed in a substantially upright position just ahead of the'heater with reference to the direction of movement of the paper sheet P thereover. The portion 35 is provided above the heater with a series of perforations 36 which may be seen in Figures 11 and III. The purpose of-such apertures is to counteract the ret-ardation of the paper sheet which is passing over it by eliminating the back pull and hesitation due to a suction effect.

The other end 37 of the guard 34 slopes:

downwardly ina direction away from the heater as is clearly shown in both Figures 1 and III.

' The sticks 22, as is illustrated in Figure 11,

may be variously spaced apart to suit the requirements of the particular j ob. The determining factor in spacing the sticks 22 is not always the same as the factor which should determine the spacing of stop fingers, audit is accordingly desirable to have the adjustment accomplished. A rod 38 vcarries aseriesof brackets 39 adapted to berotatably fixed by means of set screws 40. The

brackets .39 in turn carry thestop fingers 41 .Whichare automatically lifted and depressed in a ,manner well known to the art Whenever the rod 38 is oscillated. According to my invention the stop fingers .41 arepermitted to rest upon the guard 34. In Figure 11 it Wlli be observed that 1 provide Wires 42 divarieating from the-sticks 22 and terminating above the guard 34 upon which their free ends may rest. The purpose of the Wires 42 is to avoid sagging of thepaper sheet orentanglement of any of its edges.

1 claim 1. A. sheet delivery device comprising a conveyor carrying an elongated perforate support extending across a major portion of the delivery end thereof.

2. A sheet delivery device comprising a sheet conveyor a guard mounted ahead with reference to the direction of movement of a sheet upon said conveyor, an-d a flaring support at the point of meeting of said conveyor land guard.

A sheet delivery device comprising a sheet conveyor, a guard mounted ahead with reference to the direction of movement 1mparted to a sheet by said conveyor and supports extending obliquely between said conveyor and guard.

4. A devlce of the character described comprising a sheet conveyor of anelongated perforate member disposed adjacent thereto extending for a considerable distance across it and having a portion thereofbelow the path of travel of a sheet whereby to counteract retardation of the sheet byelimination .of a suction effect.

5. A device of the character described comprising a conveyor to nove .printed sheets of a continuous perforate guard extending in a direction across and disposed beyond the delivery .end ofsaid conveyor with reference to the direction .of travel of:

said sheets andadapted to be traversed by said sheets.

6. A device of the character described comprising a conveyor over which a printed sheetis to pass, of aguard disposed adjacent to said conveyor and having a portion thereof below theintended path of travel of respect to the plan of said. conveyor.

7. A device of the character described comprising a sheet conveyorof a perforate adapted tobe traversed'by said sheets.

8. A device of the character described said sheet, said guard being elevated .with

comprising a conveyor over which printed material is to pass, of an elongated guard extending across and disposed with a portion thereof below the path of travel of said material and perforated for the .purpose specified. I

9. A device ofthe character described.

comprising a conveyor over which printed material is to pass, of a guard projecting upwardly above said conveyor and at that end of it which is last traversed by said material, said guard having a portion thereof disposed below the path of travel of said material and provided with an aperture directed substantially along the path of movement of said material.

10. A device of the character described comprising a conveyor over which printed sheets are to pass, of a guard having a perforated area projecting above said conveyor, said guard having a portion thereof disposed below the path of travel of said sheets.

11. A device of the character described comprising a carriage including adjustable sticks and stop fingers adapted to swing relative to the plane of said sticks, and a perforate support extending across from one side and the other and between the delivery ends of all of said sticks and fingers.

12. A device of ,the character described comprising a printed sheet conveying carriage including fiy sticks and stop fingers adapted to swing relative to said sticks and a support extending laterally in a direction across the path of movement of said conveyed sheets and located between said heater and the delivery ends of said sticks and fingers whereby to support the sheet at the moment of its delivery from said carriage.

13. A device of the character described comprising adjustable sticks, stop fingers and a support extending between the delivery ends of said sticks and fingers adapted to sustain a moving sheet irrespective 0" the relative position of said sticks and fingers.

14:. A device'of the character described comprising a printed sheet conveying carriage, stop fingers adapted to swing relative thereto and a delivery guard both extending laterally in a direction across the path of movement of said conveyed sheets and below said fingers, said guard being located above said fingers.

15. A device of the character described comprising a sheet conveying carriage, stick-s thereon, a guard mounted across the ends of said sticks, and a flaring support at the'point of meeting of some of said sticks and guards.

16. A device of the character described comprising a sheet conveying carriage, sticks thereon, a guard mounted across the ends of said sticks, and supports extending obliquely between said sticks and guard.

Signed by me, this 23rd day of September, 1921.

JAMES E. DOYLE. Attested by:

ALBERT T. HOLMES, R. P. MEQUILLET.

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