US71609A - Henry w - Google Patents

Description

" I@uitrit gisten gatea'tffire.

HNRY' W. 'Henrica or BnRLINsviLLn, PENNSYLVANIA.

l Letters Patent No. 71,609, dated .December 3,' 1.867.

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To ALL WHoM IT MAY coNonnN;

Be it known that l, HENRY W. HARPER, of VBcrlinsville, Northampton county, Pennsylvania, have invented -a Machine for Finishing Slate-Frames; Aand do 'hereby declare the following to be a full, clear, and exact description of the same.4 y 4 VMy in vcntion consists of a certain mechanism, ful-ly described hereafter, forl planing the upper and lower Asuri`aces of a slate-frame, rounding the edges, and finishing and smoothing the frame, at'one operation, with' precision and rapidity.. f

- In orderto enable others familiar with machinery of this class to make and use my inrention, I ivill now proceed to describe its construction and operation, reference' being hadv to the accompanying drawing, which forms apart of this specification, and in which- 'A i Figure is a sectional 'elevation of my improved machine for finishing slate-frames.

Figure 2,- a plan view, and I Figures 3, 4, and 5 views of parts `detached and drawn to anrenlarged,v scale.

Similar letters refer to similar parts throughout the several views.'

The side frames A and A of the ma-cl'iinaearc connected together by crosspieces-a, and, in suitable bearings secured to the frame, turn three vertical shafts B, C, and D, each of lwhich is furnishedwith a driving-pulley,

- b. Tothe upper end ofthe shaft B is secured al detachable wheel, F, having upper :ind lower flanges c and c',

between which is a' groove,`d, (iig. A' cutter, e, similar to that of an ordinary hand-plane, is secured to the up'per flange cof the wheel, the cutting-edge projecting a short distance into the groove d; and beneath this cutter, and secured' .tc 1tileflange cf, is asimilar cut.t'er, e, (see fig s.l' 2 and A- vtoothed cutter-wheel, G, in 'which' is formed-.a semicircjilar groove, f, inline withth-el 'groove dof' the 'ivheelFfis-sosecured to the u'pper endof the shaft VC as to be detachable' therefrom,.,thef'bearings 'fr 'of .this 'shaft being rendered adju-stable', as

' shown in fig. 4. At the upper end ofthe third shaft, l), is securedadetachable"finishing-wheel, H, havingalso afgroove, y, concave at the end, as shoivn in 'the drawing. It will be observed thatthe grooves of the wheels F, G, and H arcin line with each other, and that a table-or platform, Jpa'p'or'tion'of. xyh'ichis cutout'for the reception of Aeach wheel, extends the entire length of the frameof the'machine. Guide-plates K (iig. 2) are secured to-the table between the wheels F and'G and GandH, and two spindles, mandan', turn in the opposite side frames of the machine, and are provided with feed-rollerspp, which project' over the table J. `The spindle m has a drivingpulley, g, and a pulley, q', for the reception of a band pass/ing round a similar pulley, q', on the spindle mv v v Theseveral shafts being caused to rotate inthe direction of their arrows, fig. 2, and the spindles m and m v being turned slowly in the direction ofutheir arrows, fig.V 1, the slate-frame (scejrcd lines, g. 2)in its rough unfinished state is placed upon the table J, and is ii'rst passed beneath the feed-pulley p, i'vhicli moves it forward towards the wheel F, the cutters of'iithich plane the upp'erandvlower surfaces of the lframe simultaneously, as shown in g. 3, vthereby reducing it-to'a uniform thickness. Before the real-,end of the slate-frame has passed from between the iianges of the wheel F, itis opera-ted'upon by'lthe cutter-,Wheel Gr, andfits edge is rounded by the same, as shown in iig. 4,'the guide-plate K, against which 'the edge of `the frame is maintained, preventing it from being cut away too much; After having `been ivrounded, the slatesframe, still resting against the guideplate K, is moved forward by the second feed-rollerp, and into the groove g ofthe finishing-wheel 1I before its rear end has left the cutter-wheel G.' 'After the frame leaves the wheel H, by ivhichits edge issmoothed and finished, the remaining three sides are subjected, 'one after the other, to the action of the planing,rounding, 'and The bearings of the shaft C, as before described, are adjustable, so thatthe cutter may be moved further from or nearer to the guide-plate K, at pleasure.V

The finishing-wheel may 'consist of what is termed vnlcanite cmery; or it may be a plain wheel properly coated with pulverized quartz, glass, or other material for imparting a smooth surface to wood. I l i It will beevident that, although I have shown th'ewheels as arranged to revolve inl a horizontal plane, the

'machinemay be so arranged that they will turn'in a vertical or inclined'plane without departing from the main features of my invention.' It will also be evident that the faces and edgesof slate-frames may be reduced to a uniform finish with rapidity and precision by the above-describedmechanism.

-I claim as my invention, and 'desire to secure by Letters Patent The combination of the planing-wheel F, cutter-wheel G, finishing-wheel H, and guide-plate K, the whole beingv constructed and'arranged for joint action on the slate-frame, substantially as set forth.

In testimony whereof, I have signed my name to this specification in the presence of tivosubscribing witnesses.

H. WM. HARPER.

Witnesses:

JOHN N Enr., 'JNo. D. Scimmia.V

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