US115253A - Improvement in bung-cutters - Google Patents

Description

w, cqsnawsme. Improvement in Bung- Cutters.

Patented May 23,1871.

Inventor Hand :tical shaft andof the face plates. I Q To enable others. skilled in the art to make and use my invention, I will nowproceed to describe fully its construetionand manner. of operation.

.for themachinea l Anotr WI-LeELM GRISTlAN srnRNBnRejor' DAVENlORT, IOWA.

Letters Patent No. 115,253, dated May 23 1871 IMPROVEMENT IN BUNG-CUTTERS.

The Schedulerefened to in these Letters Patent and making part of the same.

To all thhom t'tmay concern;

Be it known that I, ADOLF WILHELM CRISTTAN STERNBERG, of Davenport, in the county of Scott 1 and State of Iowa, have inveuteda new and improved Machine for Cutting Cylindrical and Conical Forms; and I do hereby declare that the following is a full and exact descriptionjof the same, reference being had to the accompauyingfldrawing and to the letters of reference marked th ereon'. a a

' This inventionhas for its object the production of a machine capable of cutting cylindrical and conical forms, which may be readily adjusted to cut any desiredsize within the limits of the machine, and condescrihed hereinafter. 1' In the drzttvinga 1 Figure 1 represents a side elevation of my improved sists in'certain details-of construction, as will be fully machine;

Figure 2 ,a plan through the line t ng. 1 Figure3, a sectional view of the arms of the ver 1 A represents any suitab1e frame-work or support 13 represents a vertical shaft, which may revolve in any proper bearings, and be actuated by any suitable power. i

i I 'preferably employ as a bearing a cylindrical socket, a, which projects through the supporting-beam,

and is provided above with a. bearing-flange, a, as shown.- 1

The lower end of the shaft is provided uponopposite. sides with arms a fig. 3, consisting of suitable piecesof metal, of proper strength and size, which furnish ya. bearing, against which the cutters press when in operation.

B represents a cylindrical socket, located upon the shaft A above the arms M, which is provided with boxes b b, the lower sides of which are slotted, to re- ,ceive the upper ends of the cutters, the latter being secured 'to. transverse shafts b b, provided with fric-, tion-rollers, as shown.

The socket B revolves with the shaft A, but is capable ofa verticalmovement thereon, being actuated by means of a lever, O, which is secured to it by means of the bifurcated arms 0 'c, which are attached,

,by set-screws, tothe collars, held inplace by flanges "71 b, asshown. i

D D represent the cutters, which are held above by theboxes b b, as described, and below by the plates to cut a cylinder,or inclined lines to cuta cone.

a? a fig. 3, secured to the arms a a, the plates a being provided with a suitable recess to receive the cutter, as shown. p

One of the holding-screws a passes through a slotted opening in the face-plate a, by which means the latter may be swung up or down upon the other'screw as a pivot, for the purpose of adjusting the position 'of. the cutters, as may-be desired.

Thelower ends of the cutters are provided with cutting-edges d d, the edge d being located upon the outside of one-and the inside of the other, in order that both cdgesof the groove maybe properly cut;

. E represents a vertical shaft provided with a disk, e, at its lower end, as shown; This shaft has a vertical movement ina socketin the lower end of the main shaft B, which is made hollow for that purpose, and is secured from displacement by means ,of a tran'sverse pin, 0', which moves in a slot of the shaft B, as

shown.

F represents a coiled spring, which is located upon the shaft Bbetweenthe pin e and the lower edge of the socket a, as shown.

The operation is as follows:

Th'e cutters are first adjusted either in vertical lines This adjustment is made by simply loosening the holding- ,screws and by' moviug the face-plates a to throw the" cutters into the desired position, where they "may be readily secured again by turning on the screws.

Motion is communicated to the machine in' any proper 'manner. The material to be out is then placed beneath the cutters, the latter being raised by means of the lever O, which lifts the socketBT, to which the cutters are attached, (the latter moving upward in the recesses of theface-plates a). When the material'is thus placed, the lever is .ope'rated to bring the rapidly-revolving cutters down upon it, and to depress them. as the operation "of cutting. proceeds.

When the desired distance has been gone. through, the cutters are again raised by thelevers. During this movement, the disk e operates to prevent the worl; from rising with the cutters until the latter are free from it. Whenthis' point has been reached,however, the disk 2 is raised with the same movement of the lever, by means of thesocket B, the upper edge of which comes ,in contact with the pin 0' and causes it i to rise with the shaft E.

By. means of the friction-rollers on the shaft 7) the necessary movement of the upper ends of the'cutters,

as the lever is elevated and depressed, takes *place,

without undue friction and consequent injury to the machine. 7 Having thus fully described my invention,

What I claim as new, and desire to secure by Let- This specification signed and witnessed this 22d day ters Patent, is of February, 1871. i

1. The combination of the sliding socket B with ADOLF WILHELM CRISTIAN STERNBERG. the pin 0, adapted to lift the shaft E within the stationary shaft B, as described. Witnesses: 2. The slotted face-plate a, pivoted at a eom- HENRY O. F. JENSEN l bined with and constructed to adjust the cutter-D, JOHN HEUERMANNS.

substantially as described.

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