US1550678A - Adjustable work support - Google Patents

Description

Patented Aug. 25, 1925.

UNITED STATES HIRALT DAVIS, OF CAIVIDEN, NEW JERSEY.

ADJUSTABLE WORK SUPPORT.

Application filed October 11, 1923. Serial No. 667,821.

To all lwhom it may concern:

Be it known that I, l-IRAM Davis, a citizen of the United States, and a resident of Camden, in the county of Camden and State of New Jersey, have invented an lmprovement in Adjustable Vork Supports, of which the following is a specification.

My invention relates to work supports, more particularly supports which are adapted for supporting a wheel in position to be operated upon by 'a drill press or other like machine.

One of the objects is to provide a support which is adjustable whereby wheels of different sizes can be positioned and supported in operative relation to the machine which is to operate upon the same.

A further object of my invention is to provide means whereby one side of the support may be adjusted independently of the other so as to accommodate it to different conditions of the work or so as to accurately present the work to the tool or machine operating thereon.

Other objects and advantages of my invention will be pointed out in the detailed description thereof which follows or will be apparent from such description.

In order that my invention may be more readily understood and its practical advantages fully appreciated reference may be had to the accompanying drawing in which I have illustrated one form of mechanical embodiment of support embodying my invention. However, it will be understood that changes in the details of construction may be made within the scope of the claim without departing from my invention.

In the drawing:

Fig. l is a view in side elevation of a work support embodying my invention showing a wheel supported thereby and also showing in side elevation a drill press which is adapted to operate upon the work;

Fig. 2 is a view partly in vertical section and partly in front elevation of the said support; and

Fig. 3 is a view in front elevation of the rear member of the work supporting means.

Referring to the drawing:

l designates a post or standard upon which the drill press 2, or other similar machine is supported and upon which a portion or element of the work support is supported.

3 and t designate two couples of brackets or bars to the outer ends of which one side 5 of the support is detachably secured by means of the removable pins 6 and 7. The opposite lower edges of the member 5 are cut away as shown in the drawing and the reduced lower end portion thus formed is situated between the outer forward ends of the brackets or bars 3. The pin 6 passes through openings through the outer end portions of the said brackets or bars 3 and through an opening in the lower end portion of the member 5. Likewise the opposite upper edge portions of the member 5 are cut away to produce a reduced upper end portion which is situated between the outer ends of the upper brackets or bars 4C. The pin 7 passes through openings through the outer end portions of the said bars and through the said reduced upper end portion, as shown. It is apparent that the pins 6 and 7 may be removed to remove the part or element 5 of the support, if desired. As shown in the drawing, the part 5 is provided with a plurality of holes l0 arranged lengthwise. thereof for the reception of the inner end portion of a supporting shaft or rod ll upon which the wheel l5 is supported, the said supporting rod or shaft l1 passing through the central opening of the hub provided for the spindle of an axle. In the construction as shown it will be noted that the opening through the hub is cylindrical, but as will be understood, these hub openings are frequently and perhaps for the most part of truncated cone shape or tapered. In the construction as shown the rim is shown upon the wheel and holes may be drilled thereinto, if desired, by the drill of the drill press 2. However, the device is used principally for tenoning or forming the reduced outer end portions upon the spokes which enter holes previously formed in the rims or fellies. When used for the latter purpose a suitable cutting device is substituted for the drill shown in the drill press upon the drawing.

The opposite end of the shaft or rod 11 is supported in a central opening 20 in a cross head 21, the latter comprising a metallic portion 22 having screw threaded openings 23 therein in alinement with the openings 2l in the remaining wooden portion of the said cross' head 2l. The two parts of the cross head are secured and held together by means of the bolts and nuts 25. Adjusting screw threaded rods 26 extend through the openings 23 and 2li and are in screw threaded engagement with the screw threaded openings 23. rlhe lower ends or the scren7 threaded odjusting` rods 2o rest .in sockets torined in the upper side ol' o plete 28 secured to zi hase 29 mounted upon any suitable support. rEhe ripper end portions of the serew threaded adjusting rods 26 extend through the top cross har 30 oli in inverted lil-shaped ineniiier Si., consisting; preferably or e lient n'ietzil har, shovvn. The lower ends el" the opposite sides of the seid U-shaped ineinher :1re oent downwardly, es indicated zit 32, and 'o secured to the hase 2C hy sierenv liolts 33. To prevent upward inoveiiient et the adjusting screw three ded 'rods l5 have provided` the collars 235 thereon in'nnediste y underneath the cross her 30. The iiuper e nds ot tl e :idjusting screw threaded rods ure provided with crenlr handles hy ineens ot which the seid adjusting roes 24S inny loe tured siinulteneousl;T so ss to reise or lower the cross head 2l.

rl`he inner' end portion ot the Wheel supporting` shaft or rod il indy he placer in any one of the series oit' holes il) in the meinber 5 und the cross heed 2l nitty he then edjusted sov as to adjust the wheel into proper relation With respect to the tool or cutt' ej device which is adapted to operate upon e rim of a Wheel or upon the outer ends o' the spokes upon which the seid rini is adepted to he secured and supported.

lf it should be that the title spindle opening through the huh should he oi truncated cone slnipe instead of cylindrical es shomi it would heeoine necessary to odj ust the cross heed 2l either up or down so es to place the spokes, assuming that the outer ends thereoit' are to be tenoned, in alineinent With the like roi' the puriose ot performing operot the spokes.

in 'i thus described in)Y invention, what i eterni end desire to secure by Let- 7 w JY iid in parallel relation to the 1 heed having openings therethrough through which the smid screw threaded rods e'tend and with which the rods lieve screiv threaded engagement, and the :eid cross heed having u horizontal eiiingv theethroughv means wher-ehi7 the l screw threaded rods nitty he rotated to client vertical :idj stinents oit the seid cross houd, :ind n ivorli supporting; bar extending; into the opening in seid cross heed and into one ot' the openings oi" the said vertical lmr.

lu testimony that l clziiin the VAroregoing in)v invention? l have hereunto signed my neme this 5th dey of (Bomber, 1923.

HRAM LAVIS.

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