US 2444580 A
Description (OCR text may contain errors)
July 6, 1948.
' V. E. PRATT ET AL ADJUSTABLE FEED SHELVES FOR PAPER HANDLING MACHINERY 2 Sheets-Sheet 1 Filed 001;. 6, 1945- HWY W. m N PG flv 0 V. T W T R A u ER o M v July 6, 1948.
Filed Oct. 6, 1945 V. E. PRATT ET AL ADJUSTABLE FEED SHELV'ES FOR PAPER HANDLING MACHINERY 2 Sheets-Sheet 2 INVENTORS VERNEUR E PRATT By GEORGE F GRAY A r TORNEVS Patented July 6, 1948 ADJUSTABLE-FEED SHEINE-S none-Area HANDLING MACHINERY} Verneur E. Pratt and George .F. Gray,
Application-October 6, 1945, Serial No. 620,708
This invention relates. to adjustable feed shelves for paper handling machinery, and has for an object. the provision of an adjustable feed Shelf for flow cameras such as disclosedin the copending application SerialNumber 507,939; filed October 28, 1943, entitled: Photographic-devices and method of operating same, but may be used in any device where it is desirable to. feednapers of different widths to conveyor belts or the like to be photographed, printed, stamped, orprocessed in any manner in the machine to which the feed shelf is attached.
Another object is to provide a feed shelf of the character described which is free from all transverse joints or cracks in which the endsof papers-may catch during the feeding Operation.
A further object is to provide a feed shelf that is easily adjustable to take papers of any width.
Other objects andadvantages will appear from a perusal of thefollowing specification and accompanying drawings,- where by way of illustration the invention is shown as applied to a flow camera as disclosed in the aforesaid copending "application. It will be understood, however, that the showing herein is not limitative, the invention being as defined in the appended claims.
In the accompanying drawings:
Figure 1 is a plan View looking down on the feed shelf constituting this invention;
' Figure 2 is a transverse cross-sectional View on the line 2, 2 Figure 1;
Figure 3 is a transverse view partly in section on theline 3, 3 Figure 2;
Figure 4 is a side view of the feed shelf shown in the preceding figures attached to a flow c mer as described in the aforesaid copending application; and
Figure 5 is a detail view of the snap fasteners on the inner ends of the shelf whereby same is secured to the device or machine with which it is used.
Referring to Figure 1, the numeral l denotes a support having forwardly extending ears ll, [2 adapted to fit into slotted plates !3, one on each side of the device to which the feed shelf is attached and secured thereto by welding or in any suitable manner.
Each of said ears has a. snap fastener comprised of a fiat spring M secured to the ear at l and having at its free end a plunger l6 adapted to enter a hole in the side walls I! of the device such as the flow camera generally indicated by the numeral Hi.
The support In carries upon its upper face the transverse sliding members I9, 20, 2t, 22.
fi claims. (01; 271-86).
The slides t9, til-.have secured thereto in any suitable. manner the chute member Y23 and the slides til, 21 have the chute member 24 likewise secu ed h r The bottom. portions of the chute members are corrugated as shown at 25 and nestv one within th other as best seen in Figure 2. This forms a'horizontal .feedingtable the corrugations running t e direction in which material is fed thereover to the device [8.
The sliding members or arms id, 428, 2!. 22 are slotted as shown at 26,, Figure 3,, where they extend below the chute m m s- Tw of t es arms, 19 and 21 are shown so. slotted in Figure 3.) Bolts 27, 28 extend through these Slots and the support 10. Wins nuts 29; aiiare provided for the threaded outer ends of the bolts 2'! to secure the-parts together as hereinafter described.
The chute is assemblodby placing the parts to.- gether as shown in Figure 2. The cars ll, [2 are then pushed into the slots in plates 13 and the plungers'lfi of the snap fasteners on these ears enter the holes in the side walls I! of the device. Thus thechute ismounted thereon.
Thechute members are now adjusted to take napersQfiiny width up to the capacity of the deviCfifis they may be moved from the extreme nterposition shown in dotted lines, 23o, 24.0,, Figure 1 to the inner position shown in solid lines. This is accomplished by raising the member 23 sothat the corrugations in the bottom thereof no longer mesh with the corrugations in member-'24, and then, 23' and24 are shifted bodily to thedesired position and clamped by bolts 21,25 and: uts 9, 3B.
The outer ends or horizontal ears 3|; 32 of the chute members extend into the device l8 as best seen in Figure 4 to guide the papers fed into the chute to the mechanism of device l8 which, in the case of the flow camera described in the aforesaid copending application, is the belts 33, 34.
To detach the device it is only necessary to pull outwardly on the knobs 35 to release plungers l6 and thereby release the chute from the device l8.
It will be observed from the foregoing description and the drawings that this improved chute has no transverse cracks or slides for papers to catch. The corrugated bottom facilitates the feeding of papers as the papers rest on the tops 36 of the ridges therein. This is an advantage over chutes having a smooth bottom against which the papers often lie and stick because of static electricity and for other reasons, The
24 can be moved to vary the width of the chute.
However, by making both chute members adjustable, papers may be fed to the feeder belts at any point transverse the belts.
By corrugations is meant any conformation having no transverse cracks, points or ridges that may interfere with the smooth feeding of paper lengthwise therealong. It will be observed that the feed shelf can be attached and removed from the machine or device i8 without in any way disturbing the adjustment of the width of the feed chute formed by the members 23, 24.
What is claimed is:
1. In a device of the character described, a support, corrugated members nested one within the other to form a feed shelf having opposed longitudinal sides formed by the upturned edges of said members, and means comprising clamping members secured to said corrugated members and underlying said corrugated members and extending transversely thereof for securing said corrugated members to said support, said corrugations running lengthwise of the upper surfaces of said members whereby fiat sheets fed thereover rest upon the apexes of said corrugations and are held out of contact with the depressed spaces therebetween, whereby sticking of the sheets to the support is prevented.
2. In a device of the character described, corrugated members adapted to nest one within the other to form a feeding shelf having opposed 1ongitudinal sides formed by the upturned edges of said members, said corrugations running in the direction in which material is fed thereover whereby fiat sheets fed by said support rest upon the apexes of said corrugations and are held out of contact with the depressed spaces therebetween whereby sticking of the sheets to the support is prevented, arms extending below said members and secured thereto and underlying the bottom surfaces thereof extending transverse said members, and means for securing said arms together whereby said members may be laterally spaced apart in various adjusted positions with some of said corrugations nested and so held togather by said means.
3. In a device of the character described, a support, clamping means carried thereby and corrugated members forming a. feeding table overlying said support and adaptedto be clamped thereto by said means in various positions thereon whereby the width of said feeding table may be altered, said corrugations being nested the while, said corrugations running in the direction in which material is fed over said table and being adapted to support flat sheets upon the apexes of said corrugations while said sheets are fed .therealong.
4. The device as claimed in claim 3, wherein said supporthas means independent of said corrugated members for attaching same to a machine With which said device is to be used to position said corrugated members with the corrugations extending towards the machine.
5. The device as claimed in claim 3,,wherein said support has means for attaching same to a machine including ears extending from the main body thereof, and said corrugated members have extending ears adapted to guide material fed along said corrugated members and into a machine adjacent said ears.
6. In a device of the character described, a chute comprising two sections of corrugated material adapted to overlap and nest in the corrugations whereby the width of said chute may be adjusted, means for adjusting the width of said chute comprising a pair of members one of each being secured to one of said sections and underlying same, one of said members extending below the other to cause some of the corrugations of each section of said chute to mutually engage, whereby the width of said chute may be varied.
VERNEUR E. PRATT. GEORGE E. GRAY.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 708,082 Sackett Sept, 2, 1902 827,349 Converse July 31, 1906 1,190,974 Arey July 11, 1916 1,212,524 Lucas Jan. 16, 1917 1,872,945 Hebig Aug. 23, 1932 2,302,067 Spiess Nov. 17, 1942 2,378,185 Chatterton June 12, 1945