US1636983A - Sheet-stop mechanism for ruling machines and the like - Google Patents

Description

1,636,983 y A. BROADMEYER SHEET STOP MECHANISM FOR RULING MACHINES AND THE LIKE Original Filed ril 8. 1926 Skeet Turner Rulizy Maddlberf' Braadm r A. BR/OADMEYER July 26, 1927.

SHEET STOP MECHANISM FOB Q RULING MACHINES AND THE LIKE Original filed April 8. 1926 5 Sheets-Sheet 2 [III f [vflvautoi Glbert 52 006127176? 1,63 6,983 y 1927' A. BROADMEYER SHEET STOP MECHANISM FOR RULING MACHINES AND THE LIKE Original Filed April 8. 1926 3 Sheets-Sheet 3 Patented July 26, 1927.

UNITED STATES 1,636,983 PATENT OFFICE.

ALBERT BROADMEYER, OF HARRISBURG, PENNSYLVANIA, ASSIG NOR TO THE W. O.

HICKOK MANUFACTURING COMPANY, OF HARRISBURG, PENNSYLVANIA, A COB- PORA'IION or- PENNSYLVANIA.

SHEET-STOP MECHANISM FOR RULING MACHINES AND THE LIKE.

.Original application filed April 8, 1926, Serial No. 100,699. Divided and this application'filed July 19,

1926. Serial No. 123,577.

The present invention relates more particularly to means that will stop the movement of a sheet temporarily in order to position it for a succeeding operation, and one of the important objects is the provision of novel means oi an effective character for preventing the rebound ot the sheets when they strike the stop.

The present application is a requireddivision of application, Serial No. 100,699,

filed by me on April 8, 1926.

In the accompanying drawings:-

Figure 1 is a diagrammatic plan view of the lay-out of an L-ruling machine, showing the location and general arrangen'ient of the stop mechanism,

Figure 2 is a plan view on an enlarged scale of a portion of the stop and rebound preventing mechanism,

Figure 3 is a sectional View onthe line 33 of Figure 2,

Figure 4 is a vertical sectional View through the controlling valve,

Figure 5 is a view in elevation of the valve and its operating mechanism,

Figure 6 is a sectional view substantially on the line 66 of Figure 5,

Figure 7 is cross sectional view on the line 7 7 of Figure 6, looking in the direction of the arrow A,

Figure 8 is a similar sectional view looking in the direction at the arrow B.

The invention is disclosed in connection with an L-ruling machine, in which sheets are first moved under ruling pens in one direction and are then caused to move In a right angular direction beneath a second set of ruling pens to rule lines thereon at right angles to the first lines. The lay-out of such machine is disclosed in Figure 1, wherein a feeder is shown diagrammatically at 17. This delivers sheets to the first ruling machine 18, and from the ruling machine 18, the sheets are delivered to a turner or direction-changing device, indicated at 19,. From this apparatus, they are fed to second ruling machine 20. Inasmuch as the feeder 17 and ruling machines 18 and 20 may be of well known character, it is believed to be unnecessary to show and describe them in detail, as their make-up is well known to those skilled in the art.

The sheets, after passing the ruling machine 18, are carried by endless tapes 34 into the sheet turning mechanism 19, and are fed therefrom to the second ruling machine 20 by a suction roller 35. g has an exhaust conduit 36 leading to a valve casing 37, and from said valve casing a conduit 38 leads to a suction or exhaust pump 39.

Extending across the path of the sheets carried by the tapes 34 is a stop bar 40, and as shown in Figures 13 and 14, secured by brackets 41 to this bar, is a suction pipe-42, having depending nozzles 43 with open The suction roller 35 lower ends, these nozzles overlying the the tapes 34 beneath the nozzles and against I the stop bar 40. Referring now to Figure 4, the valve casing 37 contains a plunger valve 46 having a reduced portion 47 that is movable into and out of position to aflord communication between the suction cond it sections 36 and 38 and thus connect the feed roller 35 to the pump 30. The valve 46 "also has a free end provided with a passageway 48 that opens throughits lower end, and has a lateral port 49 that is movable into communication with the conduit 38 leading to the pump 39 when the reduced portion 47 moves upwardly to cut off communication between the conduit section 36 and 38. This lower end of the valve is connected by a pipe 50 with thesuction pipe 42.

Journaled on the rear end of the machine is a main drive shaft section 51 operated by any suitable means, and having fixed thereto between its ends a collar or head 52. Another head 53 is fixed to the inner end of the shaft section 51, Slidably and rotatably mounted on the drive shaft section'51, between the heads 52 and 53 is a sleeve 54, one end of which maybe knurled, as shown at 55, forming a handpiece, so that it may be readily moved. The other end of the sleeve carries a cam 56, and this cam is provided with a pin 57, adapted to engage in any of a series of sockets 58 formed in the head or collar 52. The cam is normally held locked to the collar by means of a coiled spring 59 interposed between the knurled end of the sleeve 54 and the head 53 fixed to the shaft 7 by the tapes 34: against the stop bar l0, and

as the sheets strike said stop bar, the plunger valve 46 is raised to the position shown in Figure 4, whereupon suction will be created in the nozzles 43, drawing the paper upwardly against the same and preventing its rebound away from the stop bar 40. The valve then drops, whereupon suction is cut off from the nozzles i8, releasing the paper, and at the same time suction is created through; the roller 85, so that this roller will start the sheet at right angles from its first direction of movement and send it into the second ruling machine 20. It appears to be relatively immaterial whether the suction takes place through the nozzles 43 just asthe sheet strikes the stop bar 40, or whether the suction is slightly in advance, as for instance, if a sheet should happen to lag a trifle during its progress, for it has been found that the momentum of the sheet and its frictional engagement with the travelling tapes will carry it onward until the sheet strikes the stop bar, in which case the rebound will also be prevented. 7 I

From the foregoing, it is thought that the construction, operation and many advantages ofthe herein described invention will be apparent to those skilled in the art,

without further description, and it will be understood that various changes in the size,

shape, proportion and minor details of construction may be resorted to without departing irom the spirit or sacrificing any of the advantages of the invention.

What I claim, is: A

U 1. In apparatus of the character set forth, the. combination with a sheet stop, of means for moving sheets to a position against the a stop, normally inactivemeans located above ,the sheet moving means and in spaced relationthereto in advance of the stop for preventing the rebound of the sheets from the stop whencarried thereagainst by the moving means, and means for causing the relbound preventing means to become active after a sheet has passed the same and engaged the stop.

2. In apparatus of the character set forth, the combination with a sheet stop, of means for moving sheets to a position against the stop, a stationary suction head located over the path of the sheets in advance of the stop for preventing the rebound oi the sheets from the stop when carried thereagainst by the moving means, and means for causing suction through the head when a sheet is carried against the stop by the moving means.

3. In apparatus ot'the character set forth, the combination with sheet stop, oi means for moving sheets to a position against the stop, a stationary suction head located over the path of the sheets in advance of the stop for preventing the rebound of the sheets from the stop when carried thereagainst by the moving means, and means for causing suction through the head when a sheet is carried against the stop by the moving means, and a guide linger carried by the head and extending over the sheet moving means.

4:. in apparatus of the character set forth, the combination with a sheet stop, of means for moving sheets to a position against the stop, a stationary suction head mounted on the stop and located over the path of the sheets in advance oi' the stop for preventing the rebound of the sheets from the stop when carried thereagainst by the moving means, and means for causing suction through the head when a sheet is carried against the stop i by the moving means. 1

5. In apparatus of the character set forth, the combination with a sheetconveyor, of a stop bar extending across the path of the sheets on the conveyor, a suction pipe lined lo the bar above conveyor and having inlets opening above the conveyor in advance otthe bar, and means for creating suction through the pipe.

h. In apparatus of the character set forth,

the combination with a sncet conveyoi, 01". a

stop baiextending across the path of the sheets on the conveyor, a suction pipe fined to the bar above the conveyor and having depending inlet nipples overhanging the con veyor in advance of the bar, forwardly extending guide fingers carried by the nipples and located over the conveyor, and means For periodically creating suction in the pipe.

In testimonywhereofll aflix my signature.

ALBERT BROADMEYER,

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