US901889A - Saw-table safety attachment. - Google Patents

Description

23. W. CUMMINGS. SAW/TABLE SAFETY ATTACHMENT. AKPLIOATION FILED NOV. 18, 1907.

901,889. Patented 001;.20, 190s.

AT ORNEY NITED @Flilllfli EARLE W. CUMMINGS, or ()AKLAND, CALIFORNIA, Assnawn T0 ononon n. YO'UNQ, or SAN FRANUlSOO, CALIFORMA.

SAW-TABLE SAFETY ATTACIEJENT.

. Patented. (lot. 26, 1908.

Application filed November 16, 1907. Serial No. 402x105.

.. .tt:uluiu-.nts of which the following is a specification.

Myinvention relates to a safety attach ment for sawing tables.

It consists in the combination of parts, and 'in details o'l construction which will. be more fully explained by reference to the accompanying drawings, in which Figure l Fig. 2 is an end view or my saw-table safety attachment. Fig. 3 is a side elevation 01 same.

vide a means tor protecting operators on an and like tables from injury by reason of the lumber which is being sawed so Batching in the saw as to be violently thrown backward, and either killing or severely injltl'lllfJf the operator by reason of the [lying piece or pieces of lumber.

l have here shown a sllllicieni portion of an apparatus to illustrate my invention.

lpon tho sawing-table A is fixed a vert'igal standard 2 which is boltod or otherwise firinly seeurod noa r one side of the table and out ol the direct line of the saw. An arm 3 is supported from this standard and projects out to one side therefroinin the plane oi rotation of the saws, and line. of travel ol the lumber. This arm Carries the safety -guards =l ajnd 5 whirh will be hereafter described. V arious means may be employed for securing the arm 3 in place.

.l have here shown the standard 2 as be'ing made hollow and having a tiurnable head.

'lhrinigh this head passes a bolt 6 having nuts at top and bottxon'i by which the Whole may be securely locked in place. By loosenlug ono of theso'nut's the head and the arm maywbe swivelod about; so as to remove the safety-guards from their normal position and swing them out of the way so that work can be placed upon andremoved from the table, and easy access had thereto.

l have shown the. stalulard as having lugs 7 upon it, and l'mtweon these logs is a turnable latch 8 which is so pivoted as to swing between tho lugs ainlprovont the head and connected parts from being t u'ru-d but when 13; a section on line a:-w of Fig. 3.

It is the object of myinvention to pro-;

Ill upon the upturned it is desired to turn them this latch is swung up out; of the way.

The safety guard 4- may consist of a plate of wood or metal of. snflicient strength, and. it extends upwardly from the arm '3 having a sufiicient height and width to protoct: the head and upper gortion of the operators body from anything; which may tly backward from the saw. in the present it shown as supported by stout arms 4 to which it is bolted or riveted.

The guard 5 which protects that portion of the operators body from tho table up to the arm 3, consists of a series of fingers which are carried upon the arm 5-3, or a shaft extending through it, 'lhese arms have the lower ends pointed, and as thoy are allowed to swing freely upon their horizon tal support, these points will engagc the lumber which in being advanced on the table to the saw so that if by any accident the piece of linnb'r should be so engaged that it would otherwise be violently thrown backward in the direction of the operator, orlhc rear olf th'o table these points will iiinnediately engage and prevent it :lron': being thrown baolnvard; the angle. of the arms I being tmvard the front, and the points act ing as stops to prevent the lumbar from being thrown backvardly. By reason of the independent bars 5, the points will easily con- .t'ornrto any irregularities of: the surface of the piece to be eawed, or worked. upon by any other or equivalent toot. if it is desired to raise those guard strips no as to remove the lumber from the table, or for other purposes, it is oltected by n'ieans ot' a springpressed handle 9 having upon one side a latch 10, which may be engaged with a catch 7 guard or its, supports. lhe handle may be pushed down so that its point or projection 12 on. the opposite side from the latch, will engage a projeo tion ll. on the cont-iguoni's arm Each of these arms from one side to the other has a projection as at 13 adapted. to interlock with a similar engaging partoi the next man so that when this handle pushed. down arid its pawl o arm engages the first of the arms 5, the continued downward pressure will rais: all. or these arms until tho latch. 5) en gages with the stationary catoh ll of the upturned. guard 4;. thus holding the downwardly projecting guard arins in an 'clo,- vated position, and allowing access the lln table or the v'vo'rkJ Ini order 'tm'a-l-l'ow these arms to be moved, Thaxe own an elongated key or feather-Way 14: made in conjunction with the central opening 15 which fits the shaft .for support upon v,which the arms are turnable,-and a feather 16 upon this shaft enters this key-way. 'Dhe {length 01' the key-way is sufiicient to allow the raising of the arms to blear the table as previously described; and if it is desired to move the whole device temporarily, it is effected by swinging the arm 2-3 which carries the guards upon ,-the vertical supporting standard 2.

Having thus described my invention, what I claim and desire-to secure by Letters Patent is- I 1. In an apparatus of the character described, a bar adapted to be projected over a sawing table, substai tially parallel with the saw arbor, fingers lm'lependentlv turnable upon a shaft carried by the bar having points at the ends adapted to rest upon and engage the passing strip of lumber, lugs upon the sides of the fingers adapted to engage successively, a pawl carrying handle movable upon the same axis, and having a tug adapted to engage the first of the fingers when the handle is depressed, and latches with which the pawl may engage to retain the lingers in an elevated position.

2. In an a paratus of the character described, a supportextending transversely above the sawing table, substantially parallel with the saw arbor, a shaft carried by said support, pointed fingers adapttg'd to engage the surface of the lumber, passing to the saw, and to prevent its return. a fixed shield projecting upward from the finger support, means for raising the fingers, said means including inter-engaging lugs, with a pawl and ratchet mechanism whereby the depression of the lever causes the engagement. of the lugs, and a simultaneous raising of all the fingers.

3. In an apparatus of the character described, a vertical standard having a turnable head, an arm projecting horizontally from said head into the plane of motion of the tool, means by which said head and arrn are turnably engaged with the standard, a fixed guardextending upwardly from the arm, independently movable lingers extending downwardly having points to engage the passing material, and means by which said fingers are raised or released, said means in eluding lugs adapted to engage the hubs oi; the fingers, a pawl-earry1ng handle turnable upon the finger support having a lug adapted to engage the first of said fingers, and

catches with which the pawl may engage so that the turning of the handle will elevate all of the fingers out of contact with the surface beneath.

4. In an apparatus of the character described, a horizontally movable arm having a fixed guard extending upwardly therefrom in line with the tool, independent fingers turnably supported from the arm having points to engage the material, said lingers having engaging lugs upon the sides, a bandle having a lug to engage one of said fingers and transmit motion to the others whereby the whole series may be aired to free them from the material below. i

5. In an apparatus of the character described, a horizontally supported arm having a fixed guard extending upwardly llHt't from, independent lingers turnably mounted upon the arm so that the points of said tingers may drop and engage the material passing beneath, the heads of the fingers having curved key-ways, a feather upon the shaft extending into the key-wa vs, a handle turnable upontthe shaft having a lug to engage and raise the fingers, and a latch by which the handle and fingers are. maintained in elevated position.

In testimony whereof ,I. have hereunto set my hand in presence of two subscribing witnesses.

v 'EAR LE V. IIJMMINGS. Witnesses I3. ZIPPERLEN, Jas. II. Purnuin'rmx.

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