US752380A

US752380A - Ho model

Info

Publication number: US752380A
Authority: US
Publication date: 1904-02-16
Anticipated expiration: 1921-02-16

Description

PATENTED .FEB. 16, 1904. T. o. DEXTER. V SHEET CONVEYING MACHINE APPLICATION FILED 001225, 1902.

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.No. 752,380. PATENTED FEB.16,1904. T. 0. DEXTER.

SHEET CONVEYING MACHINE. APPLIUATION FILED 00 25, 1902.

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No. 752,380. PATENTED FEB. 16, 1904.

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SHEET CONVEYING MACHINE. APPLIUATIUN FILED 011125, 1902.

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, chines,of which thefollowing isa specification. The present invention relates to improve Patented February 16, 1904;. I

PATENT OFFICE.

TALBOT o. DEXTER, or PEARL RIVER, NEW YORK.

SHEET-CONVEYING MACHINE;

SPECIFICATION forming part of Letters Patent No. 752,380, dated February 16, T904. Application filed October 25, 1902. Serial No. 128,711. (No model.)

To all whom it may concern/.-

citizen of the United States, residing at Pearl River, in the county of Rockland and State of New York, have invented certain new and useful Improvements in Sheet-Conveying Maments in the sheet-feeding mechanism for conveying successlve sheets of paper from an automatic paper-feeding machlne to a printingpress, folding machine, ruling machine, or

other machine designed to operate upon sheets of paper.

The object of my invention is to provide an .improved construction of such sheet-conveying mechanism which can readily be adjusted to suit difierent sizes of sheets which are to be fed to the press or other machine and which has means for regulating the propellingforce of the conveyer-tapes upon the sheet for carrying the successive sheets into registered position againstthe front guides of the press or other machine with just suflicient force to insure the proper registry of the sheets,so as to avoid the rebounding of the sheets from the front guides or the injury of the leading edge of the sheet. In accomplishing these objects I provide a plurality of sets of sheetconveying tapes which .are arranged to actupon the sheets successively 1n carrymg themfrom the feeding-machine to the front guides of the press or other machine. One set of the conveyingtapes which receives the sheets from the feeding-machine is arranged above the plane of another set of conveying-tapes which delivers the sheets to the printing-press,

and a third or intermediate set of conveyingtapes is arranged to operate in the plane of the receiving or feeding machine tapes and interlaps with said receiving-tapes and is adjustable in the plane of feed with relation to the delivery-tapes. These receiving and intermediate sets of tapes being in a higher plane than the delivery-tapes afiord a drop from the delivery-roller of the intermediate tapes to the carrying portion of the deliverytapes for the purpose of allowing each sheet to partially overlap the one which precedes it to facilitate rapid feeding. When a sheet is in registered position against the front gages, it rests upon the delivery-tapes with its rear edge a little in advance of the delivery-roller of the intermediate tapes. By adjusting the intermediate set of tapes in the plane of feed its delivery end is brought nearer to or farther away from the front gages of the press, and

'therebyenables the operator to expose a larger or smaller part of the delivery-tapes to accomdate the machine to any size of sheets.

To regulate the propelling force of the delivery set of tapes in moving the sheets into registered position against the front gages of the press, I provide a series of friction plates or bars, which are extensible in the direction of feed and are adjustable to cause them to project more or less above the surface of the carrying portion of the delivery-tapes to relieve the sheets of more or less of the propelling force of said tapes.

In order that my invention may be more fully understood, I willfirst describe the same with reference to the accompanying drawings and afterward point out the novelty more par: ticularly in the annexed claims.

Figure 1 is a detail sideelevation of my improved sheet feeding or conveying mechanism. Fig. 2 is a detail elevation, partlybroken away, illustrating the means for adjusting the inner tape-rollers of the receiving and delivery sets of tapes. Fig. 3 is a plan view of my sheet-conveying mechanism. Figs. 4 and 5 are detail longitudinal sectional views illustrating the means for regulating the propelling force of the delivery-tapes upon the sheets. Fig. 6 is a detail plan view of the same.

1 represents the impression-cylinder, 2 the front gage, 3 an under guide, and a the feedboard, of a printing-press.

orepresents part of the frame of an automatic paper-feeding machine.

-6 is the feeding-machine tape-roller, driven by a part of the feeding-machine in amanner well understood.

10 represents the side bars ofthe frame which supports the sheet-conveying mechanism which carries the successive sheets from the feeding-machine to the printing-press or other machine. These bars 10 are pivotally mounted upon the feeding-machine frame at 11 or bars 14, which form an incline leading from thedlivery-tapes to the gage end of the feedboard.

15 indicates one of a pair of adjustable brackets or carriages which are mounted upon the side bars and are provided with setscrews 16 for clamping them in the desired adjusted position upon the side bars. Freely journaled in these brackets or carriages and extending from side to side of the machine is a tape-roller 17. The receiving conveyer-tapes -18 pass around the feeder tape-roller6 and the inner adjustable tape-roller 17.

20 is one of another pair of brackets or carriages adj ustably mounted upon the side bars 10 of the supporting-frame, said brackets or carriages 20 having rotatable pinions 21, which 'mesh with the rack-teeth 22, formed on the side bars 10. These brackets or carriages 20 have freely journaled in them and extending from side to side. of the machine a tape-roller 25. A delivery-tape roller 26 is freely journaled in the brackets 12 and extends from side to side of the machine. The delivery conveyer-tapes 27 are supported upon the tape-rollers and 26, the upper or carrying portion of the tapes 27 being arranged in a lower plane than the upper or carrying portion of the tapes 18 and the intermediate tapes presently to be described.

The adjustments of brackets or carriages 15 and 20 are for the purpose of maintaining. taut the conveyer-

tapes

18 and 27 In addi: tion to these adjustments I prefer to provide connecting rods or bars 30, which rest in

sockets

31 and 32 of the brackets or carriages 15 and 20 and are engaged by set-

screws

33 and 34 upon said carriages. these adjustable connections I securely lock the carriages 15 and 20 in the desired adjusted position and am enabled to more readily effect the tightening and loosening of the

tapes

18 and 27 An intermediate and adjustable set of conveyer-tapes is provided for transferring sheets from the receiving-tapes 18 to the deliverytapes 27. These intermediate tapes 35 are supported upon tape-

rollers

36 and 37, which are freely journaled, respectively, in adjustable brackets or carriages 38 39. These brackets orcarriages 38 and 39 are mounted .upon the side bars 10 of the conveyer-frame, the set-screws 40 being threaded into carriages 38 to engage the side bars 10 for holding said carriages in the desired adjusted position, and connecting-bars 41 being pivotally mounted upon ears 42 of carriages 39 and ad- By means of r justably held in sockets 43 by set-screws 44 on carriages 38. By adjusting connectingrods 41 the tape-

rollers

36 and 37 can be moved toward or away from each other for tightening or loosening the intermediate tapes 35. By .the adjusting-screw 40 both sets of

carriages

38 and 39 can be adjusted upon the side bars for adjusting the intermediate tapes 35in the plane of feed with relation to the delivery-tapes 27 and front gages of the press or other machine.

The tape-roller 36 is driven by a band or tape 50, passing aroundroller 36, roller 6, in-

termediate pulleys 51 52, and belt-tightening pulley 53, carrying the weight 54. The delivery-tapes 27 are driven by a band or tape 55, which passes from feed machine roller 6 around the delivery-tape roller 26.

Friction-rollers 60, journaled in pivoted arms 61, mounted on rock-arm 62, extending from anadjustable rock-shaft 63, .which is supported in bracket-arms 64, extending up from the side bars 10, are arranged above the delivery-tape roller 37 of the intermediate tapes to confine the sheets as they pass from the intermediate tapes to the delivery-tapes. By adjusting the shaft 63 thefriction-rollers may be moved forwardly or backwardly upon the tape-roller 37'to cause the leading edge of the sheets to be deflected more or less toward the delivery-tapes. 1

Supported between the individual tapes of the delivery-tape mechanism are the adjustable and extensible frictional plates or bars for regulating the propelling force of the delivery-tapes upon the sheets. These plates or bars are preferably made flat, of springy sheet metal, as shown, and to enable them to be extended or contracted in the direction of feed they are made in sections. Each frictional plate or bar consists of a plate-section 65, mounted at its end upon a rod 66, supported in the brackets 12 and formed with a longitudinal slot 67, in which engages a screw 68, threaded into the second plate-section 69, which is mounted at its end upon a rod 70, supported in the adjustable brackets 'or carriages 39 of the intermediate-tape mechanism. De-

pending from each plate-section 65 is a lug 71, in which is mounted 'a rod 72, connected through links 7 2 with two or more rock-arms 73, mounted on a rock-shaft 74, journaled in brackets 75, supported on the side bars 10. This shaft 74 is adjusted in its supportingbrackets in any suitable manner, so as to adjust the amount of projection of frictional plates 69 65 above, the delivery-tapes 27. I have shown the shaft 74 with a squared end 7 6 for the engagement of a wrench and a setscrew 77, threaded into one of the brackets 75 and engaging the shaft 7 4, for holding it in the desired adjusted position.

, Sheets fed from the feeding-machine are carried by the receiving-tapes 18 and deposited upon the intermediate tapes 35, which in IIO turn deposit them upon the delivery-tapes 27, i

which carry them forward into gaged position. The intermediate tapes 35 interlap or are telescoped with the receiving-tapes 18, so as to allow for the adjustment of the intermediate tapes with relation to the delivery-tapes.

f As the tape-roller 3'7 of the intermediatetapes is in a higher plane than the tape-rollers and 26 of the delivery-tapes, it will be observed that there is a drop or depression between the intermediate tapes and the carrying portion of the delivery-tapes, so as to allow the leading edge of each sheet to pass freely over the rear edge of the sheet which has preceded it.

:This is for the purpose of allowing ample time for side registering the successive sheets .and

sheets to the front gages with just sufficient force to insure proper registry and with not enough force to cause the rebounding of the sheet or the injury of its-leading edge. will be observed that the adjustment of the I intermediate'tapes in the direction of feed 'causes'thefrictional plates 69 to be ex-: tended or shortened to suit the adjusted.posi.

tion of the intermediate tapes, the connection between plate-sections 69 and the brackets or carriages 39 automatically effecting this adjustment.-

For tightening or loosening the sheet-carrying

tapes

18 and 27 the inner adjustable brackets or carriages 15 and 20 are adjusted in the following manner: If the tapes 18 need tightening or loosening, the set-screws 16 are loosened up and the pinion 21 operated for moving carriages 20 and connected carriages 15 in the desired direction. After the tapes 18 have been adjusted properly set-screws 16" are again screwed into engaging position, and the set-screws 33 or 3 L areloosened to enable the pinions 21 to be again operated for placing the carriages '20 in the desired adjusted position-for properly tightening or loosening thetapes 27. 5

screws 33 or 34 are again tightened.-

Having thus described my invention, the

' following is what I claim as new therein and. I desire to secure by Letters Patent: c 1. In a sheet-conveyer, the combination of a set ofdelivery sheet-carrying tapes, with a second set of sheet-carrying tapes adapted to convey sheets to'the delivery-tapes and arranged with its delivery end above the carr ing portion of said delivery-tapes to afford a drop from said second set of tapes to the deliverytapes, and means for adjusting said second set of tapes in the plane of feed with relation to the delivery-tapes, substantially as and for the purpose set forth.

2. In a sheet-conveyer, the combination of After this adjustment the seta delivery set of sheet-carrying tapes, and gages for registering sheets upon said delivery-tapes, with a second set of sheet-carrying tapes adapted to convey sheets to the delivery-tapes and arranged with its delivery end above the carrying portion of the deliverytapes,and means for adjusting said second set of tapes toward and away from said gages, substantially as set forth.

3'. The combination of the receiving sheetcarrying tapes, the delivery sheet-carrying tapes, the intermediate sheet-carrying tapes arranged to take sheets from the receivingtapes. and deposit them upon the-deliverytapes, said delivery-tapes being arranged in a lower feeding plane than the receiving and intermediate tapes for the purpose of affording'a drop from the intermediate tapes to the delivery-tapes, and means for adjusting said intermediate tapes in the plane of feed with relation to the delivery-tapes for exposing more or less of the, carrying portion of the latter, substantially as set forth.

4:- The combination of the delivery sheetcarrying tapes, and their supporting-rollers, the receiving sheet-carrying tapes, and their supporting-rollers, the intermediate sheetcarrying tapes, and their supporting-rollers, the delivery roller of the intermediate tapes being arranged above the carrying portion of the delivery-tapes to afford a drop from. the intermediate tapes to the delivery-tapes, and means for adjusting said intermediate tapes in the plane of feed with relation to the delivery tapes for'exposing more'or lessof the carrying portion of the latter, substantially as and for the purpose set forth.

5. The combination of the delivery sheetcarrying tapes, the receiving sheet-carrying tapes, and intermediate sheet-carrying tapes, said receiving and intermediatetapes being interlapped with each other, and said delivery-tapes being in a lower feeding plane than the receiving and intermediate tapes, and overlapped by the intermediate tapes, and means for adjusting the intermediate tapes in the plane of feed with relation to the deliverytapes, substantially as set forth.

overlapping the carrying portion of said delivery-tapes, and means for adjusting said intermediate tapes in the plane of feed toward and away'from said gages for exposing more or less of the carrying portion of the delivery-tapes, substantially as and for the purpose set forth. a

7. In a sheet-conveyer, the combination of IIO the delivery-tapes and their supporting-rollers, the receiving-tapes and their supportingrollers, the supportingframe-bars 10, the adjustable brackets or carriages 15, 20, mounted upon said bars 10, and supporting the inner tape-rollers of the delivery or receiving tapes, connecting-rods 30 adjustably connecting the carriages and 20, means for clamping carriages 15 upon bars 10, and means for moving the carriages upon said bars 10, substantially as set forth.

8. In a sheet-conveyer, the combination of the delivery-tapes 27 supported by stationary tape-roller 26 and adjustable tape-roller 25, the receiving-tapes 18 supported by stationary roller 6 and adjustable roller 17 the supporting-bars 10, the brackets or carriages 2O adjustably moun ted upon bars 10 and supporting the tape-roller 25, pinions 21 mounted in carriages 20 and engaging rack-teeth 22 upon bars 10, connecting-rods 30, set-screws 31 upon carriages 2O engaging connecting-bars 30, brackets or carriages 15 adjustably mounted upon the bars 10 and supporting the taperoller 17 set-screws l6 securing carriages 15 in the desired adjusted position, and set-screws 33 upon carriages l5 engaging the connectingrods 30, substantially as set forth.

9. In a sheet-conveyer, the combination of a set of sheet-carrying tapes, with extensible friction plates or bars arranged between said tapes and adapted to project above the carrying portion of said tapes, with adjustable carriages to which said extensible frictionplates are connected and by which they are adjusted, substantially as set forth.

10. In a sheet-conveyer, the combination of a set of sheet-carrying tapes, with extensible friction plates or bars arranged between said tapes, each friction plate or bar comprising a section connected to a stationary part of the machine and formed with a longitudinal slot 67, and a section 69 carrying a screw 68 which operates in said slot 67 and an adjustable carriage to which said sections 69 are connected, substantially as set forth.

11. In a sheet-conveyer, the combination of a set of sheet-carrying tapes with extensible friction plates or bars formed of springy sheet metal and supported at their ends between the said tapes, and adjustable means connected with said friction plates or bars and adapted to project them more or less above the carrying portion of said tapes, substantially as set forth.

12. In a sheet-conveyer, the combination of a delivery set of sheet-carrying tapes, a second set of sheet-carrying tapes overlapping said delivery-tapes, and means for adjusting said second set of tapes in the plane of feed with relation to the delivery-tapes for exposing more or less of the carrying portion of said tion plates or bars supported at their ends and adapted to be bowed upwardly between said tapes to project above thecarrying portion of the tapes, substantially as set forth.

14. In a sheet-conveyer, the combination of a set of sheet-carrying tapes, with a series of elastic friction plates or bars arranged between the tapes and supported at their ends, and adjustable means engaging said frictionplates from beneath at points between their ends and adapted to bow said plates upwardly to cause them to project more or less above the carrying portion of said plates, substantially as set forth.

15. In a sheet-conveyer, the combination of a set of sheet-carrying tapes, with a series of friction plates or bars supported between said tapes at their ends, an adjustable shaft, means for securing said shaft in the desired adjusted position, and connections between said shaft and said friction plates or bars, whereby said plates or bars may be projected more or less above the carrying portion of said tapes, substantially as set forth.

16. The combination of a delivery set of sheet-carrying tapes and a second set of sheetcarrying tapes arranged to convey sheets to the delivery-tapes, with extensible friction plates or bars arranged between the deliverytapes and adapted to project above the carrying portion of said tapes, with means for simultaneously adjusting said second set of tapes and extending or contracting said friction plates or bars, substantially as set forth.

17. The combination of a delivery set of carrying-tapes and their supporting tape-rollers, a second set of sheet-carrying tapes adapted to convey sheets to the delivery-tapes, taperollers supporting said second set of tapes, ad-

tape-rollers of said second set of tapes whereby said second set of tapes may be adjusted with relation to the delivery-tapes for exposing more or less of the carrying portion of said delivery-tapes, and extensible friction plates or bars arranged between the deliverytapes and connected at one end with a stationary part of the machine and at the opposite end with one of the adjustable carriages of said second set of tapes, substantially as and for the purpose set forth.

TALBOT C. DEXTER.

Witnesses:

J. GREEN, WM. E. KNIGHT.

' justable brackets or carriages supporting the