US81425A - Improvement in planes - Google Patents

Description

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F. SMITH-AND I. CARPENTER, OF LANCASTER, PENNSYLVANIA.

' Letters Patent No.. 81,425, dated Augustl 25, l1868.

IMPROVEMENT IN PLANES.

To ALL Wit-0M 1T MAY CONCERN: v

. Be it knownthat we, F.' SMITH and I. CARPENTER, of Lancaster, in the county of Lancaster, and State of Pennsylvania, have invented a new and useful Improvement in Joiner-s Planes; and we do hereby declare that thefollowing lis ahfull, clear, and exact description thereof, which will enable those skilled inthe ar-t to make and "use the samp, reference being had to the accompanying drawings, forming part of this speciieation.

The nature fof our invention relates to `imprizivements in joiners planes, whereby it is designed torreuder the stocks less liable tow-arp, Eto regulatethe weight of' the same, to provide for a more perfect delivery of the shaving, adjusting the same tex-be used as a single or a double plane, and adjusting the mouth se as to govern the width ofthe same for-the-passage of the shaving.

And it coiisists in constructing the stock partly et' iron, substituting, for the tapered lnotches of wooden stocks for holding the tightening-wedges, set-screws for holding the wedge, which is made of metal, and providedwith an4 'additional tighteningserew'v in its upper end, which works aga-inst the face ofthe plane-bit, or intera swivel-nut which slides in the slots of plane-hits, as ordinarily constructed, and providing a Wooden wedge .at the back side Aoi' the plane-bit, as will be more fully described on reference to the accompanying.draw,

ings, wherein- Figure 1-represents a plan. view o f 4ourimprov'ed plane. g Figure 2, a central section ofthe same en the line a: x of iig. 1.

Figure 3, a plan view of a part of our improvement applied to plane-bits, having the ordinary slot in the' Figure 4 a seetionenv the line y y of iig. 3.

Similar letters of reference indicate corresponding parts.

A represents the Wood part oi' the stock, and

.B-the'iron portion oi' the same, which are secured together bythe screws d d.

The part B may-be made of cust iron, and of different thicknesses, as may be desired to govern the'weight of the plane. v A

'.lhehandle and knob may be secured te the part B in suitable sockets provided for them by the screws aa.

The part B is providedvwith lugs,J al a,'through which seti-screws, a2 a", are arranged to hold the cap.

C represents a metal cap or wedge, provided 'with a set-screw, b, by which it may be', if desired, raised at its upper endfreni the bit4 D.

The said vcap istprovided witha raised portion, C', in advance of the set-screw I), which rises by a gentle c'urve from thewedge portion of the same, so its to prevent thevshavings from cloggingl against the screw.

When a plane-bit is 'used without aslot, as in figs. 1 and 2,-we use a set-screw arranged as therein shown, but to adapt our improved'tightening-wedgefto planle-bits ot' the old construction, having the slot for set-screws as ordinarily'constructed, we'attach, to the ends of the set-screws, swivel-nutse, havingjslots in two 'edges of the same, which admit it to slide within the'sl-ot in the plane-hit, by taking the edges ofthe bit forming the side walls ol' the slet in the latter 'r'nto the slots in ihenut, the nut .being of the proper size to be admitted through theenlarged portion ofthe slot in the plane-bit.

, .E represents a wedge, which maybe made of wood or metal, and arranged in the bottom of the mouth of the stock under the plane-bit, and held thereby the setserew e1 passing through a slot inthe said wedge, whereby it may be adjustednvithiu tlie-'mouthoi` the stock.

The face of the wedge next theplaneb'it is provided with a recess, ci, to admit the nut e ofthe set-screw.

The ,under side of the'uppei" end of the metallic wedge() is provided with a recess, f, (see iig. 4,) when the nut c is used. i v f n I By the use of our improved wedge,.the same plane-bit may 'be used for a double or single bit.

When used as asingle' hit, itmaybe applied as ,shown in iig. 2, and when usedV as a double bit, theset-s'crews a? may be withdrawn, sof thatA the wedge may be moved down suiiciently near to the edge of the bit to serve thel purpose ofa double bit.

By adjusting the upper end of the wedge by a set-screw, b, the width of the mouth may be adjusted to suit the different requirements of different kinds of work, or of' diierent kinds of wood, or may be made of uniform I v width from bottom to top.

The same may be also adjusted by the wedge E to some extent, but the more important function of the wedge E is to govern the width ofthe throat at the'eutting-edge of the bit, as at t', as will bc readily understood,

In adjusting the wedge to the bit, when constructed as shown in figs. 3 and 4, the lower end of the wedge isplaeed at the right position With'reterence t'o the cutting-edge 'of the bit, and the thumb-screw turned to the left until the upper end of the wedge is screwed tightly to the bit. They are then inserted in the stock, the set-screws a2 adjusted to their right positions, when the set-screw b is turned in the opposite direction, andthe wedge forced out against the set-screws ai'. I

The metallic part, B, of our stoel: may lie taken oii` from a worn-out wood stock, and readily applied to a new one, or `old plane-stocks of ordinary construction may be readily fitted to be attached to it.

We claim as new, and desire to secure by Letters Patent- 1. The adjustable cap, provided with the guard in front of the set-screw b, substantially as and for tbe purpose described.

i?. The set-,screws a2 in the lugs al, arranged to clamp upon the adjustable wedge C, as herein shown and described for the purpose specied.

F. SMITH, I. CARPENTER.

Witnesses:

P. G. EBERMAN, F. R. GRUGER.

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