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Publication numberUS1451610 A
Publication typeGrant
Publication dateApr 10, 1923
Filing dateSep 15, 1921
Priority dateSep 15, 1921
Publication numberUS 1451610 A, US 1451610A, US-A-1451610, US1451610 A, US1451610A
InventorsGestas Isidore
Original AssigneeGestas Isidore
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Boring machine for paper
US 1451610 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

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Apr...10, 1923.


Patented Apr. 10,1923.



Application filed September 15, 1921. Serial No.'500,878.

To all whom it may concer/n.

Be it known that I. lsinonn GiisTAs, a citizen of the 4United States, residing at Los Angeles, in the county of Los Angeles and State of California. have invented new and useful Improvements in Boring Machines for Paper, of which the following is a specification.

This invention relates to a boring niachine for paper and it is the object of this invention to provide a simple-device that will drill holes in ledger leaves or other loose leaves to be used in the ordinary loose leaf folders. further object is to provide a cut-ter that will drill a hole through the paper and at the same time, will cause the detached. wasted portion to be taken away from the vicinity of the cutter.

Other objects and advantages will be seen and the invention .readilyunderstoml from the following description of the accompanying drawings. in which:

Fig. 1 is a side elevation of the device. part of which is broken away to show details of construction.

iFig. 2 is a4 central section taken on the line 2-2 of Fig. 1.

Fig. 3 is a fragmentary plan view of a leaf after the hole has been cut.

The improved boring machine comprises substantially a base 1, having supports 2 projecting upwardly therefrom and terminating in a bearing member 3, in which is a rotatably slid-ably mounted paper cutter 4. The cutter is hollow at its lower portion as at 5 and the cutting teeth 6 are formed on the tubular part of the drill.

Outlet ports 7 are formed in the upper end of the bore 5 which terminates intermediate the ends of the drill.

The means provided for drawing the wasted portion cut by the drill, comprises a cylindrical casing 8 having a peripheral portion 9 and upper and lower radial portions 10 which are rotatably supported upon the drill as -by a radial flange 11 formed on the drill adapted to hold the casing against the downward movement. The upper portion of the casing has engagement with a nut 12, screw-threaded upon the drill stem, the casing being positioned around the port 7 so thatthe wasted portion will be carried upwardly through the bore 5, the ports7 into the annular chamber 13 within the casing and out through a conduit 14 by suction created by any" suitable means not shown.

Suitable means for forcing the drill down- Wardlythrough an opening 15 inthe base l, and into the paper. may be had by placing the stem 16 within a chuck of a drill press or other suitable mechanism and means are provided for normally holding the vcutter out of engagement with the paper. Such means comprises a spring 17, mounted upon the shaft between the bearing 3 and the casing 8, and to limit the upward movement of the drill, a collar 18 is fixe-d upon the lower portion of the drill so as to butt against the lower side of the bearing 3.

To facilitate the introduction of the leaf within the folder without completely removing the covers` of the same, passages 19 are cut from the hole 2() in the-.leafb21 to the edge of said leaf and this device also provides suitable means for performing this operation. Such means comprises a cutter 22, rotatably mounted upon a bracket 23 having slidable engagement with one of the supports 2 as by a yoke 24.

A bevel gear 25 is fixed upon the cutter a'nd engages a second gear 26 fixed upon a shaft 27, journaled at its lower end in the bracket 23 and at its upper end in a bracket 28, projecting outwardly from the casing 8. Fixed upon the shaft above the bracket 28 is a gear 29 which engages a second gear 30 fixed upon the stem16 of the drill and it will be seen that as the drill is rotated, the cutter 22 will rotate also and by placing the device so.y that `the periphery of the cutter will just engage the outer side of the hole, the cutter then being pushed downward will form the groove 19.

Various changes may be made in the details of construction by those skilled in the art without departing from the spirit of my invention as set forth in the appended claims. y

I claim as my invention:

1. A paper boring machine, comprising a support, a cutter having a stem mounted. in said support, a passageway through said stem, a cham-ber surrounding said stein,

ports in said stem communicating with Said chamber, and means for causing the wasted portion of the paper to pass into said chamber through said passage and ports.

2. A paper boring machine comprising a cutter having a tubular shank, a flange formed on the shank, a stem formed in the end of the shanka nut on the stem, and a casin arranged between and engaged by said ange and nut, said shank being formed with openings 4between the fiange and nut to provide communication between the shank and said casin 3. Av aper oring machine comprising a cutter aving a tubular shank, a- ILange formed,l on the shank, a stem formed in the end of the shank, a nut on the stem; and a casing arranged between and engaged by' said lange and nut, said shank being ormed with openings between the fiange and nut ISIDORE GESTAS.

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U.S. Classification408/58, 408/110, 29/DIG.840, 29/DIG.260, 144/196, 83/100, 408/67, 30/310, 30/347, 30/133, 29/DIG.680, 409/234, 408/112, 29/DIG.940
International ClassificationB26D3/14, B26F1/16, B26D7/18
Cooperative ClassificationY10S29/084, Y10S29/026, B26D7/18, Y10S29/094, B26D3/14, B26F1/16, Y10S29/068
European ClassificationB26F1/16, B26D3/14, B26D7/18