US1071963A - Saw-guard. - Google Patents

Description

A. J. SIXEL & R. S. CONRAD.

SAW GUARD.

APPLICATION FILED JULYI'I, 1911.

Patented Sept. 2, 1913.

2 SHEETS-SHEET 1.

A. J. SIXEL & R. S. CONRAD.

SAW GUARD.

APILIOATION FILED JULYH, 1911.

fi w/a/z/ 45 o I Patented Sept. 2, 1913.

2 SHEETS-SHEET 2 UNITED STATE$ PATENT @FFTCE.

ALBERT J. SIXEL AND ROBERT S. CONRAD, 0F SHEBOYGAN, WISCONSIN.

SAW-GUARD.

Specification of Letters Patent.

Application filed July 17, 1911.

Patented Sept. 2, 1913.

Serial No. 638,913.

To all whom it may concern:

Be it known that we, ALnnn'r J. SIXnn and Ronnn'r S. CoNRAD, both citizens of the United States, and residents of Sheboygan, in the county of Sheboygan and Sta of Wisconsin, have invented certain new and useful Improvements in Saw-Guards; and we do hereby declare that the following is a full, clear, and exact description thereof.

Our invention consists in what is herein particularly set forth with reference to the accompanying drawings and pointed out in the claims of this specification, its object being to provide simple, economical, readily adjustable and efticient saw-guards each combined with a splitter whercwith to prevent work from cramping on the saw or being caught by the same to imminent danger of the sawyer, and it is also preferable to employ a shield in connection with each guard to protect said Sawyer from sawdust.

Figure 1 of the drawings resprescnts a side elevation, partly in section, of our combined saw-guard and splitter, as well as a dust-shield therewith, in working position with respect to a circular saw and a worktable through which the saw projects; Figs. 2, 3 and 5 detail partly sectional views re spectively indicated by lines 2--2, and 5-5 in Fig. 1, and Fig. 4, a side elevation of a fragment of the combined guard and splitter, and of the adjacent saw.

Referring by numerals to the drawings, (3 indicates a circular saw, and 7 a worlct-ablc provided with a slot through which the saw projects. Fastencd to an overhead support is a fitting 8, and a tube 9 depending therefrom has its lower end in screw-thread engagement with another fitting 10 to therewith constitute a sleeve engaged by a suspension-rod 11, that is held in vertically adjusted position by a set-screw 12 with which the fitting 10 is provided, and a flange of this lower fitting is connected by turnbuckles 13 with suitably arranged guys 14 that serve to brace said sleeve.

The general construction and arrangement of parts thus far specifically described is not unusual in saw-mill practice, our invention having especial reference to a peculiar form of saw-guard, a splitter-blade combined therewith and attached to the aforesaid rod, and a dust-shield supported astraddle of an end of said guard.

The splitter-blade 15 is curved approximately concentric with the saw over the same and provided with a vertically disposed baclc-lin 16 that is riveted or otherwise rigidly secured in a kcrt of the lower end of the vertically adjustable suspension rod. Secured to the blade, astraddle of the same, by a bolt 17 and a clamp-nut 18 thereon, is the shank-end of a split saw-guard, the rcmainder of the guard being a curvilinear shell approximately concentric with said saw over the same and semi-tubular in crosssection. The blade preferably extends into the guard, and the sections 19 of said guard are provided with upper outer matching cars 20 bolted together in pairs. The lower end of the blade 15 is preferably knifeedged, as shown in Fig. 2, and this end of said blade rests in a V seat with which the work-table is provided. Hence said table may be tilted for bevel sawing without disturbing the aforesaid blade.

Set on the combined saw-guard and splittor-blade, astraddlc of the shank of said guard, is the lower notched end of a shield 21, and a longitudinal slot 22 of the shield is engaged by a set-screw 23 that turns in the flange of the fitting 10 aforesaid, the length of said slot being such that said shield may be lifted with said guard and blade to an elevation at which they may be fastened out of the way whenever necessary or desirable.

Then properly positioned, the guard will prevent a sawycr from getting dangerously close to the saw and it will also prevent pieces of material from falling on said saw to be thrown by the same against said sawyer. The splitter-blade engages the kerf cut by the saw and prevents long pieces of material from cramping on said saw, and it also serves to prevent short pieces of material from catching on the aforesaid saw to be thrown back against the sawyer, as each of said short pieces will have to pass said blade. The position of the shield is such that it prevents sawdust from being thrown back against the sawyer.

We claim:

1. The combination of a splitter blade having a vertically disposed back-fin for connection with suspending means, a guard for a circular saw having a shank-end thereof astraddle of the splitter-blade, and means detachably connecting said blade and shankend of the guard.

2. The combination of a work-table provided with a V-seat and with a slot through which a circular saw is projected, a splitter-blade having a knife-edge lower end engaging said seat, and provided with a ver tica-lly disposed back-fin for connection with suspending means, a guard for said saw having a shank-end thereof astraddle' of the splitter-blade, and means detachably connecting said blade and shank-end of the guard.

3. The combination of a vertically adjustable guard for a circular saw, a dustshield having a lower end guardstraddling notch and an upper longitudinal slot, a stationary. device, and a set screw extending through the shield-slot into said stationary device.

In testimony that we claim the foregoing we have hereunto set our hands at Sheboygan in the county of Sheboygan and State 0f Visconsin in the presence of two wit- 20 nesses. V

ALBERT J, SIXEL. ROBERT S. CONRAD. Witnesses:

Lonis GRAssE, IRENE D. HANSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Images