US1701815A

US1701815A - Spindle sanding machine

Info

Publication number: US1701815A
Application number: US134672A
Authority: US
Inventors: William J Maddox
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-09-10
Filing date: 1926-09-10
Publication date: 1929-02-12
Anticipated expiration: 1946-02-12

Description

Feu i2, 1929.; 1,701,815

W. J. MADDOX SPINDLE SANDING MACHINE Filed Sept. lO, 1926 3 Sheets-Sheet l X X C) la@ g fr n Feb. 12, 1929.

W.-J. MADDOX SPINDLE SANDING MACHINE 5 sheets-sheet 2 Filed Sept. lO, 1926 WN xm Feb., l2, 1929.

W. J. MADDOX SPINDLE SANDING MACHINE Filed Sept. l0, i926 3 Sheets-Sheet .Patented Feb. 12, 1929.

WILLIAM J. MADDOX, 0F JAMESTOWN, NEW YURK.

SPINDLE SANDING- MCHNE.

Application led September 10, 1926. Serial No. 134,672.

This invention relates to improvements in wood working or finishing machines and particularly to a machine commonly known in the industry as a spindle sander.

One object of the invention is to provide a spindle sanding machine of comparatively simple construction whereby it may be produced at awminimum cost.

A further' object is' to provide the ma-l chine with an exceedingly simple arrangement for permitting osclllation of the work supporting table with respect to the sand- :ng spindle.

Another object contemplated is the provision of a novel and inexpensive arrange- ,ment for adjusting the work supporting table longitudinally of the spindle roller in order that work on thev table may be caused to engage different portions of the spool or sanding spindle. In this wa the operator rcan utilize rst one portlon of the spool or spindle and then another portion, and so on, until the entire surface of the spindle or spool has been utilized and its abrasive surface worn out throughout its entire length.

With these and other objects in view the invention consists in certain novel details of construction and combinations and arrangements of parts, all as will be hereinafter more fully described, and the novel features thereof particularly pointed out in the appended claims. v v

1n the accompanying drawings:

Figure 1 is a side elevationalview of the machine.

Fig. 2 is a sectional View of the opposite side of the machine.

Fig. 3 is a like view taken from the front of the machine.

Fig. 4 is a like view taken from the rear of the machine, these several views showing the work supportingtable in dierent positions.

Fig. 5 is a top plan view.

Fig. 6 is a transverse sectional view taken on theline tif-6 of Fig. 2.

Fig. 7 is a detail sectional view taken longitudinally of the sanding spindle or roll.

Fi f. 8 isa plan view of the dust remov pedestal is preferably formed of a casting of U-shaped cross section. The work supporting table 11, the spindle lsanding roll or spool 12 and the motor 18 for rotating said spindle are all carried by said pedestal 10, the spindle being preferably maintained in an upright or vertical position so positioned with respect to the work supporting table that an article to be sanded may be laid upon said table and its edge to be dressed or nishedpressed against the spindle. l

In order that the table 11 may be oscillated with respect to the spindle 12, said table is preferably carried by a pair of brackets 14 which, in turn, are p-ivotally securedv to the ends of levers pivoted on pedestal 10. Preferably there is an upper lever 15 and a lower lever 16 at each side of the machine, the table brackets 1lih being secured atthe forward ends of said levers. As will be apparent the brackets 14 together with the table 11 maybe moved up and down by moving the

levers

15, 16 on their centers at the points at which they are pivoted on the pedestal. In order to maintain the table 11 in its proper working position with respect to .the spindle 12 one set of the bracket supporting levers, preferably the lower levers 16, are providedY at their rear ends with counter-weights 17 and to further aid in holding the table in its proper position, but in such manner that it may be so maintained yieldingly, the upper levers 15 have attached thereto at their rear ends springs 18 which are also attached to the rear portion of the pedestal 10. 1f an edge of an article is to be sanded and said edge forms a right angle with the surface of said Varticle the surface of the work supporting table should lie at right angles to t e sanding surface of s indle 12. On the other hand if the artic e has a beveled edge it is necessary that the angular position of the table surface with respect to the s indle be changed. For this reason the ta le is `pivoted to the bracketslli and has a slot 19 therein through which extends a clamping screw 20 engaging the brackets whereby the angular relation of the table and spindle can be varied. It will be noted that the table is shown in a tilted position in Figure 1 and in a horizontal position in Figure 2.

4The present invention also contemplates provision for adjusting the spindle loncgitudinally of its center of rotation in or er 29, the

that it may project above the table any desired vdistance whereby any portion of its abrading surface throughout its length may be utilized thus permitting the entire surface to be worn out before the spindle is discarded. Vith this end in view the spindle 12 is slidably supported from the pedestal 10 and in the preferred construction the motor 13 for rotating said spindle iS mounted on a supporting plate 21 vertically slidable on the pedestal. Spindle 12 is at- ;ached to the upper end of the shaft 13a of ;he motor and by adjusting plate 21 vertically of the pedestal the spindle itself may be projected any desired distance above the work supporting surface of table 11. To illustrate this the spindle is shown extending only partially above the table in Fig. 1, while the entire spindle is shown located above the table in Fig. 2.

F or adjusting the motor supporting plate 21 and spindle vertically there is ivoted on the pedestal 1() a lever 22 pre erably of U-shap'e form, the arms of which are attached by connecting rods 23 to said plate whereby the operator may elevate or4 depress the plate by means of said lever. To hold the lever' and the motor supporting plate 21 in any desired adjusting position suitable means may be provided for supporting the lever 22. 1n the present instance these means are shown as consisting of a series of recesses 24 in the pedestal 10 and a pin 25 which is adapted to be inserted in any one of the recesses so that it may support one arm of the lever.

For centering the upper end of the spindle there is mounted on the pedestal a post 26 having an adjustable collar 27 and said collar is formed with an ar1fn28 in the end of which there is threaded la centering screw being a apted to enter a central bore inthe end of the spindle. When it is desire'dto raise or lower the spindle by movementof the lever 22 collar 27 is loosened so 'that it may slide freely on post 26 and after the spindle has been adjusted said collar is again tightened. This arrangement als'o permits the spindle to be easily placed in or removed from the machine. As shown in Fig. 7 the end of the spindle which is inserted on the shaft 13 of the motor has a tapered central bore 30 corresponding to the similarly tapered end of said shaft and said shaft carries a cross pin 31 which is received in a transverse slot 32 in the end of the spindle whereby rotary motion to the shaft will be imparted to the spindle. When the spindle or roll is to be inserted in the machine collar 27 and arm 28 may be turned to one side, the spindle or roll placed firmly on the tapered end of the shaft 13 and then arm 28 turned back until the centering screw 29 is alined with the central bore in the uppoint at the lower ond of said screw` per end of the'roller spindle. The centering screw is then turned down into the spindle end and the collar 27 clamped on post 26. A further description of the spindle or roll is deemed unnecessary as the same constitutes the subject matter of a copending application.

1n machines of the present type the sanding spindle or roll runs at such a high speed that it produces an exceedingly line dust, the particles being as minute as those of flour and where it is desirable to have the machine of the portable type or where it is used in a factory not provided with a dust collecting system; it is essential that means be provided for collecting the dust created bythe machine. For this reason the pres- -ent machine is provided with a fan 33 1. n a sanding machine, the combination of a frame or pedestal, levers pivoted on said pedestal, a work table carried by said levers, a sanding spindle, means for yieldingly maintaining said table in proper operative association with said spindle and means for 'adjustingsaid table to vary the,

angularity of the work-supporting surface thereof with respect to the spindle.

2. In a sanding machine, the combination 'of a frame or pedestal, a rotatable spindle, a

work supporting table carried by said pedestal, means for yieldingly maintaining the table in proper operative association with said spindle, and means for adjusting said table to vary the angularity of the work supporting surface thereof with respect to the spindle.

3. In a sanding machine, the combination of a frame or pedestal, a rotatable spindle, a work supporting table carried by said pedestal, means for yieldingly maintaining the table in proper operative association with said spindle. means for adjusting said table to vary the angularity of the work supporting surface thereof with respect to the spindle, and means for movin the spindle ongitudinally of its center o rotation.

4. 1n a sanding machine, the combination of a frame or pedestal, a work table supported on said pedestal, a motor, a sanding spindle mounted on the shaft of said motor and operatively associated with said work table, means for moving said spindle longitudinally of its center of rotation, and

means for releasably locking said spindle in any of its adjusted positions.

5. In a sanding machine, the combination 5 of a frame or pedestal, a Work table Supported on said pedestal, a motor, a sanding spindle mounted on the shaft of said motor and operativelylassociated with said work.

table, a support for said motor slidably carried by said pedestal, and a lever connected to the motor support for sliding the same on the edestal and adjusting the spindle longituinally of its center of rotation.

WILLIAM J. MADDOX.