US1324126A

US1324126A - Maurice mathy

Info

Publication number: US1324126A
Authority: US
Publication date: 1919-12-09
Anticipated expiration: 1936-12-09

Description

M. MATHY.

GRINDING TOOL.

APPLICATION FILED MAY 18. I915.

Patented Dec. 9, 1919.

MAURICE MATHY, 0F FLEMALLE GRANLDE, BELGIUM.

GBINDING-TUOL.

Specification of Letters Patent.

Patented Dee. t 119190 Application filed may 18, 1915. Serial. No. 28,955.

To all whom it may concern:

Be it known that I, MAURICE MATHY, a subject of the King of Belgium, residing at Flemalle Grands, Belgium, 28 Rue Leopold, have inventedcertain new and useful Tmprovements in Grinding-Tools; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked therein, which form a part of this specification.

This invention has for its object a grinding tool adapted to be used either for grinding bottle necks or for rendering more regular the shape of glass stoppers. This tool works by its rotation and consists of a hollow truncated cone, slit along one of its generating-lines. It is constructed very economically by means of a piece of sheetiron suitably shaped and bent- The bending of the sheet can be easily efi'ected by rolling the sheet on a metallic former.

The function of the aforesaid slit is first to allow the excess of water and abrading agent to flow away, and on the other hand,

to allow the tool to be secured by its own elasticity on a rotary spindle, without any other means. This elasticity of the sheet is maintained, when grinding bottle necks, owing to the fact that the wooden former which supports the tool does not fill the whole length of the hollow of the sheet, so that the narrow end of the latter remains completely free.

A. rotary motion is imparted to the tool; besides, a relative motion of the tool and the part to be ground is imparted in a direction parallel to the axis of the shaft, said motion being regulated by the workman and continued until the part to be ground has obtained the dimensions required. In certain cases, this relative motion is produced by moving the rotary shaft itself, as will be explained hereinafter, in the case of grind-- ing bottle necks, by way of example. In other cases, the shaft of the tool does not move parallelly to its axis, but the part to be ground is pressed against the tool, as it will be explained hereinafter in the case of working the glass stoppers.

Figure l is an end view of the tool.

Fig. is a longitudinal sectional elevation showing the tool when used for the grinding of bottle necks.

Fig. 3 is a side View of the apparatus used in this case.

Fig. t shows, partly in section, the apparatus intended for using the tool to form the glass stoppers.

.The tool consists of a piece of sheet-iron so shaped that it can be bent to form a hollow truncated cone 1, the decrement of which is the same as the one of the bottle 2 or the stopper to be ground, and having a slit 3 between the two edges of the sheet. Tt is quite possible to bend the sheet, the moment it must be used, upon the conical wooden plug 4 intended for grinding bottle necks. This plug at is screwed on the tool-carrier 5 secured at the end of the vertical shaft 6 revolving in the bearings 7 and 8 provided on the frame 9. The shoulder 11 of the shaft leans on the upper end of the bearing 8, which is slidably mounted in a socket 12 of the frame; the bearing 8 is provided with a rack 13 engaging with a toothed wheel 14: mounted on a shaft with handles 15. The weight of the vertical shaft, bearing 8 and fittings is balanced by a counterweight 16 hung to a cable 17 that is fastened to the bearing 8 and passes over suitable rollers 18. The shaft 6 is besides provided with a pulley 19 by means of which said shaft can be driven for instance by using an electric motor 20.

Under the rotary shaft is arranged the bottle 2, fastened by any suitable means, in a bucket 21 forming a part of the frame 9. After the conical plug f has been provided with the bent sheet 1, an abrading agent, to which water is added, is fed to the neck 2;

by turning the handle wheel 15, the workman forces the rotary tool to move downward; the excess of water and abrading powder flows down through the slit 3 into the bottle while the grains remaining be tween the sheet and the bottle neck grind the latter and produce in the internal surface of the neck the minute spiral stripes that are necessary when perfect stoppering is required.

When the same tool 1 is used for rendering more regular the shape of glass stoppers. the sheet 1 is put in the cylindrical hole 22 of a tool-carrier 23. lit remains lined in said hole 22 by its own elasticity; the tool-carrier 23 is secured by any suitable means to a horizontal shaft 24 journaled in bearings 25 of the frame 26. This shaft 24 is driven at a speed that can be altered, by means of a step-pulley 27. When the tool is revolving at the speed required, the workman puts some sand in the hollow sheet-iron cone, and then drives the stopper in the hollow cone, holding fast the stopper in such a manner that the same can not revolve with the tool.

What I claim is:

l. In a machine for grinding glass bottle necks or the stoppers thereof, an interchangeable tool comprising a hollow split truncated cone having outer and inner grinding surfaces thereon, a member to neat-nee which said cone is secured by its inherent resiliency when either grinding surface is being used, and means for imparting angular and axial movement to said cone.

2. A tool for grinding glass bottle necks and the stoppers thereof, comprising in combination a hollow slit truncated cone and a rotating carrier to which said cone is secured by its inherent resiliency.

In testimony whereof I affix my signature in presence of two witnesses.

MAURICE MATHY.

Witnesses:

Gnomes VANDER HUGHEN, HENRI JoYnNvn.