US981340A - Band-saw guide. - Google Patents

Description

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BAND SAW GUIDE;

APPLIGATIOEPILBD 2PT. 19, 1910.

' Patented Jan.10,1911.

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Spccieca tizm oi" Letters Patent.

Patented Jan. to, 19%.

Application filed fieptember 19, 1910. Serial No. 583,663.

To all whom it may concern:

Be it known that I, ROLANDES /VHITAKEB, a citizen 0% the United States, residing in I Bigelow, in the county of Perry and State oil Arkansas, have invented certain new and useful.- Improvements in Band-Saw Guides,-

of which the following is a specification.

My invention relates to guides for band was of the class in which provision is made for adjusting the different members of the guide to accommodate saws of different Widths, the object of my invention is to provide a guide of this class which may be adily applied to diiferent kinds of sawing machines, which is simple in construction, is composed of relatively few parts, is readily ad usted and when once set is firm and rigid and performs its functions with accuracy.

In carrying out my invention, I provide a base plate which is adapted to be attached to the bed late of a sawing machine, and which carries the two stationary members of the guide. On this base plate I provide an adjustable section, carrying the other two guide members which are adapted to be moved toward and from the stationary members to accommodate saws of different widths. The adjustable section slides on parallel rails formed on the base plate and is connected thereto -by bolts which when loosened permit it to be adjusted but which,

, when tightened, provide a firm and ri id connection between the sliding section and the base. Each gulde member comprises a housing, carrying an adjustable guide block,

provided with a facing of suitable material such as Babbitt metal.

In the accompanying drawings :Figure 1 is a top plan now of a band saw guide embodying my improvements. Fig. 2 shows a Side elevation thereof, indicating its relation with the saw to which it is applied, the base plates of the sawing machine being indicated by dotted lines. Fig. 3 shows a vertical central section on the line 3 3 of Fig. 1. Fi 4 shows a cross section on the line 4=-4 0% Fig. 1. Fig. 5 is a detail view, Show ing particularly the manner of arranging a counter-sunk plate in the guide housing. Fig. 6 shows a section on the line 6-6 of 'Fig. 5.

The base late, A, comprises two parallel arms, a, a, lihving a long narrow space, a, between them to receive the saw and connected at one end by a solid portion, a

the guide block.

Bolt holes, a, a, a are formed-in the solid portion, (0 and in the arms near their outer ends as shown in F i 1. Longitudinally arranged parallel rai s, B, B, are formed on the arms of the bifurcated bed plate and on a part of the solid portion, a thereof.

Formed integrally with or rigidly secured.

to the arms of the bifurcated bed plate near their outer ends are the housings, C1,L of the stationar guide members. Each ousing is former with a chamber, to receive a guide block, l), carrying a wearing plate, (l, of Babbitt metal or other suitable material and each housing is provided with a plate E, countersunk in a recess in the housin in the manner illustrated in Figs. 5 an 6. The plates, E, receive the end thrusts of the set screws, F. When the set screws are loosened, the pressure of the plates E, on the guide blocks is relieved and they may be adjusted, but when the screws are tightened the guide blocks are held firmly in their adjusted positions.

'lhcmovablc section,G,comprises two arms, g, 9 Connected at g, by a U-shaped bend. 'lhcsc arms have a space between them to receive the saw and they are formed on their under sides with grooves which receive the rails, ll. 'lhc arms are slotted, as indicated at ll. and through those slots extend bolts, I, attached to the bed plate on opposite sides of the space, a, and these bolts extend up throixgh the arms of the sliding section, their upper ends being provided with nuts, h, and washers, it. Each arm, g, carries a housing, J, for a guide block, K, provided with a, wearing plate, 7c, and each housing has a. counter-sunk plate, L, which bears against Set screws, M and N, engage the plate, L, and when the set screws are tightened the guide block is held firmly in position. The bolts and nuts, I, h, hold the sliding section firmly on the bed plate, but by loosening the nuts the section G may be adjusted on the rails, B, to vary the distance between the stationary guide blocks and the movable ones to accommodate saws of different widths.

It will thus be seen that the construction is such'that the guide me. be readily applied to different kinds of and sawing machines and can be easily adjusted to saws of different widthsand when once set is firm and rigid and will operate efficiently.

I claim as my invention l. A band saw guide, comprising a base plate composed-of two parallel arms, connected together. at one end and having a space between'them to accommodate the saw, guide members on opposite sides of the saw space rigidly connected with the base plate, an adjustable bifurcated section slidably mounted on the base plate and provided with guides for the saw on'opposite sides of the saw space, and means for rigidly connecting the adjustable section with the base plate whereby the stationary guides on the adjustable sliding section may be arranged at'difierent distances apart to accommodate saws of different widths.

2. A band saw guide, comprising a base plate composed of two parallel arms with a space between them to accommodate the saw, parallel rails on these arms, guide members rigidly connected with the arms, an adjustable section comprising parallel arms, grooved to fit the rails, guide members carried by these arms, and means for securing the adjustable'section to the base plate.

3. A band saw guide, comprising a bifurcated base plate, guide blocks connected therewith, arallel rails formed on the base plate, a bi urcated adjustable section havguides and the .1)

ing grooves fitting the rails, guide blocks carried by the adjustable section, and means for securing this section to the bed plate.

I 4:. A band saw guide, comprising abifurv late.

5. A band saw guide, comprising a bifurcated ba plate formed with parallel rails,

uide blocks carried by the base plate, a biurcated adjustable section having grooves fitting the rails and provided with slots running parallel with the rails, guide blocks carried by the adjustable section, and bolts secured to the bed plate and extending through said slots.

In testimony whereof, I have hereunto subscribed my name.

ROLANDES WHITAKER. Witnesses I CHAS. DAVIDSON, H. G. MGLAUGHLIN.

housings, and means foradjustably connecting the said adjustable section with the base

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