US1366484A - Paper-feeding machine - Google Patents

Description

F. PATAK.

- PAPER FEEDING MACHINE. APPLICATION man JAN.28, 1920.

1,866,484. Patented Jain. 25,1921.

INVENTOR ATTORNEY FRANK PATAK, OF JERSEY CITY, NEW JERSEY.

PAPER-FEEDING MACHINE.

Application filed January 28, 1920. Serial No.

To all whom it may concern Be it known that I, FRANK PATAK, a citi zen of the United States, and a resident of Jersey Cit in the county of Hudson and State of Niiw Jersey, have invented certain new and useful Improvements in Paper- Feeding Machines, of which the following is a specification.

The present invention relates to paper feeding machines, and more particularly to separators, that is to say to means for removing an individual sheet from its position in a stack.

In one type of these machines, springpressed feeding fingers are employed, said fingers being pivoted to a support and separating thesheets by being rocked and moved back and forth in relation to the stack. Serious difficulties have been experienced with these feeding means for the reason that the springs, acting upon the feeding fingers, are apt to break and are then carried forward to the printing mechanism, causing injury, etc., to the same.

The main object of the invention is to provide a simple and efficient protecting means, which prevents broken springs from being carried forward toward the printing mechanism.

Another object of the invention is to so construct the spring protecting means that it can be conveniently mounted on already existing structures, without necessitating any change whatever in the construction of the feeding device.

With these and other objects in view, which will more fully appear as the nature of the invention is better understood, the same consists in the combination, arrangement and construction of parts hereinafter described, pointed out in the appended claim and illustrated in the accompanying drawings, it being understood that many changes maybe made in the size and proportion of the several parts and details of construction within the scope of the appended claim, without departing from the spirit or sacrificing any of the advantages of the invention.

One of the many possible embodiments of the invention is illustrated in the accompanying drawings, in which Figure 1 is aside elevation of a feeding mechanism provided with spring protecting means constructed in accordance with the present invention; Fig. 2 is a front ele- Specification of Letters Patent.

Patented Jan. 25, 1921.

vation thereof; Fig. 3 is a plan view of the same, partly in section; and Fig. 4 is a section taken on line 4-4: of Fig. 3, on a larger scale.

In the drawings, the numeral 10 indicates a rubber roll, mounted on a spindle 11, the latter being fixedly attached to a supporting arm 12. This arm is pivoted on a stud 13, carried by a frame 14. Around the stud is coiled a tension spring 15, one end thereof bearing against a pin 16 on the arm 12, and its other end engaging a pin 17 on a nut 18, by means of which the tension of the spring may be varied. The tension spring operates to throw the roll support and roll downward, so as to bring the roll into con tact with the top sheet of the pile. A mechanism 19 of any suitable construction is 7 provided, to limit the downward movement of the roll.

The spring 15 is inclosed by a housing 20, made of two sections, denoted by the numerals 21 and 22, said sections being provided with apertures 23 and 24, through which the pins 16 and 17, respectively, extend. The section 21 of the housing is fixed by the pin 16 to the arm 12, and the section 22 is fixed by the pin 17 to the tension nut 18. These two sections are thus movable in relation to each other and do not interfere with the proper operation of the device.

When the parts are assembled, as shown in the several figures of the drawings, the tension of the spring may be adjusted without dismounting the housing from the stud 13. All that is necessary is to disengage the cotter pin 25 from the notches 26 in the outer face of the nut, and turn the latter with the housing section 22 into the proper position, and then seat the cotter pin in those notches 26, which register with the hole 27 in the stud 13.

In operation, the frame l4,'with the roll support 12 thereon, is moved back and forth and the roll support rocked on its stud 13 in the well-known manner, to feed the sheets, one after the other, from the stack. The housing section 21 partakes of the rocking motion of the roll support. The housing incloses completely the spring, so that, in case the latter breaks, it will be prevented from dropping onto the paper stack.

What I claim is In a sheet feeding device, the combination with a movable frame provided with a stud, of a roll support pivoted to said stud, a roll carried by said'support, a tension spring on said stud an adjusting nut on said stud, one end of said tension spring being in engagement with said r011 support and the other end with said nut, and a housing on said stud completely inolosing said spring, said housing being made of two sections, one of .day of January, 1920.

which is fixed to said roll support and the other one to said adjusting nut.

Signed at New York, in the county of 10 New :York and State of New York, this 15th FRANK PATAK.

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