US1448775A - Combination plane - Google Patents

Description

Mar. 20, 1923. 1,448,775. C. A..TRUMP.

COMBINATION PLANE.

FILED SEPT. 23. 1922. '2 SHEETS-SHEET 1.

/ b" I I A TTO/MIE VS Mar. 20, 1923. 1,448,775. 0. A. TRUMP. 1

COMBINATION PLANE.

FILED SEPT. 23. 1922. 2 SHEETS-SHEET 2- I mi I A 1701mm Patented Mar. 2Q, 1923.

stares PATENT @ZFFEQEQ CHARLES A. TRUMP, OF DERBY, PENNSYLVANIA.

COMBINATION PLANE.

Application filed September 23, 1922. Serial No. 590,049.

a specification.

This invention relates to wood working tools and more particularly to planes.

Briefly stated an important object of this invention is to provide a wood working tool which may beused as a rabbeting plane, a blockplane or a smoothing plane by a simple adjustment of the various parts.

A further object is to provide a plane of the character specified having simple means whereby the position of the handle may be readily changed to adapt the plane to the various uses to which it may be put.

A further object isto provide a plane of the character specified which is of highly simplified construction, durable in use and cheap to manufacture. j

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawing, forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a vertical longitudinal sectional view through the improved plane.

Figure 2 is a plan view thereof.

Figure 3 is a perspective of a throat varying plate and the attaching member there Figure 4 is a side elevation of the improved plane.

Figure 5 is a perspective view of a handle embodied in the invention. 1

Figure 6 is a plan view of another handle embodied in the invention.

Figure 7 is a plan view of a blade embodied in the invention.

Figure 8 is a detail transverse sectional view through the blades of the plane.

In the drawing wherein for the purpose of illustration is shown a preferred emboc iment of the invention, the numeral generally designates a stock which is formed from metal or other suitable material and which is provided with a work contact plate or As illustrated in Figuresl and 2 the up standing sides 7 of which there are two are joined by the upper and lower cross members 8 and 9 respectively,upon which a cutting blade 10 is mounted. In carrying out the invention the work contact plate 6 is formed with a transverse incision 12 through which the forward portion of the blade is extended for engagement with the work.

Attention is also directed to the fact that one longitudinal edge of the blade is slightly beveled (not sharp) as indicatedat 14 to make a clearance for working in a corner when it is desired to use the plane for rabbeting purposes. Oneof the sides 7 is open for the reception of one longitudinal edge portion of the blade and for the passage of the shavings. That is to say the shavings pass through the opening 250 when the plane is used for rabbeting purposes.

The work engaging plate or bottom 6 00-. operates with an adjustable plate 140 in the formation of a variable throat through which the forward portion ofthe blade extends. Figure 3 plainly illustrates'that the adjustable plate 140 is provided with an upstanding attaching stem 15 having threaded. connection withthenut 16 of a knob 17. Then the knob 17 is rotated the nut 16, is of course rotated and the plate 140 is either tightened or loosened, according to the direction of rotation of the knob. It will be seen that the adjustable plate 140 is arranged directlybeneath thebottom 20 of theplane and is provided with an upstanding portion or thickened portion 21 which is slidably received in a slot 22 in the stationary plate 20. The projection 21 is less in length than the slot 22 and consequently the adjustable plate 140 is capable of a limited adjustment.

l/Vhen the plate 140 is adjusted thes'ze of the throat in the plane will be varied Suitable means may be provided for holding the plate 140 against rotation or turning when applied to the plane.

As illustrated in Figure 1 a cap 30 is arranged upon the blade 10 and has its intermediate portion engaged by the inwardly directed lugs 31 carried by the upstanding sides 7. A screw 32 is threaded through the cap and is securely engaged with thefblade 10 so as to hold the blade inv position. It

will be observed that when the screw 32 is tightened the intermediate portion of the cap 30 is urged tightly into engagement with the inwardly directedlugs 31 It might be stated that the-rear portion ofthecap is In carrying out the invention the blade 10 may be adjusted longitudinally by means of a hand wheel 85 having a stem 86, the forward portion of which is provided with a worm 37 which engages the transverse teeth 38 on the under side of the blade. It will be seen that when the hand wheel is rotated the blade 1.0 will be moved longitudinally whereby the cutting depth of the same is varied.

The main handle of the improved plane is generally designated by the numeral 40 and is mounted on what might be said to be a carriage 41 and suitable means such as screw bolt 42 may be employed for connecting the handle to the carriage. An additional screw bolt 43 may also be employed for securely connecting the handle to the carriage.

Figures 1 and 5 illustrate that the carriage is provided with a transverse groove r 46 to slidably receive a transverse rib 147 formed on the upper side of the base or work contact plate of the plane. The groove 46 has one wall undercut and is slightly larger in cross sectional area than the cross sectional area of the rib 147 and consequently the carriage is capable of a limited movement longitudinally of the plane when the fastening means therefor is not tight. hen the fastening means for the handle is loosened the handle may be moved transversely of the plane and set in the proper position. The adjusting means for the handle comprises a longitudinally movable pin 47 slidable through aligned openings 48 and 49, the opening 48 being in the main portion of the carriage and the opening 49 being in an extension 60 on the forward end of the same. It will be seen that the locking pin 47 is formed with a radial projection or handle 50 adapted to be received within a vertical groove 51 in the extension 011 the forward portion of the carriage. When the knob or projection 50 is received within the groove 51 the pin 47 is released from looking engagement with the rib 147.

However when the projection or knob 50 is rotated into the position illustrated in Figure 2 it is engaged with the rear side of the extension to the carriage and consequently the locking pin 47 is moved rearwardly into engagement with the transverse rib 147 whereby to securely and positively lock the rib in a setposition. A spring 55 is mounted on the pin 47 between the carriage and the projection and urges. the projection into the recess or groove 51 when the projection is initsvertical position.

' The extension which isdesignated by the numeral has its forward side inclined 1" beveled and engaged with the undercut wall of a second transverse rib 61 which is formed on the upper side of the base plate 6 of the plane. It will be seen that the handle and carriage therefor may be securely and positively held in a set position and if it is desired to remove the handle for any purpose, the projection 50 is positioned within the groove 51 and the locking pin 47 is therefore released and the handle may be readily detached by an upward movement of the same.

hen the plane is used for rabbeting purposes the edge portion of the blade 10 extending through one side of the plane is brought into engagement with the work and the handle 40 is positioned at the extreme left hand of the blade whereby a lateral pressure may be exerted by the operator for forcing the cutting edge into the corner of the rabbet.

When the device is used as a smoothing plane the handle 40 may be removed or it may be secured in a rigid position in the center of the stock as illustrated in Figure 2. The handle may be rigidly secured in a set position by means of the locking pin 47 previously described.

From the foregoing description taken in connection with the accompanying drawings,

it is believed to be obvious that the plane may be used for rabbeting purposes by extending the blade out through one side wall and more particularly by extending the blade through one of the openings 250 in the side wall 7. When it is desired to use the plane for smoothingpurposes the blade is properly positioned and the handle may or may not be detached.

lVhen it is desired to use the plane as a block plane the handle 40 is of course properly positioned and the blade is also properly adjusted.

It is to be understood that the form of the invention herewith shown and described is to be taken as a preferred example of the same and that such minor changes in arrangement and construction of parts may be made as will remain within the spirit of the I invention and the scope of what is claimed:

I claim:- 1. A plane comprising a stock having front and rear cross ribs, a carriage slidable on said rear rib and having engagement ,with o said front rib, a handle connected to said carriage, cutting means carried by said stock, and a locking pin carried by said carriage and adapted to engage the rear rib whereby to hold the handle in a set position.

2. A plane comprising a stock having front hold the handle in a set position, said pin and said carriage being provided with means to hold the pin securely in engagement with the rear rib.

3. A plane comprising astock having front and rear cross ribs, a carriage mounted on said rear rib and having an extension engaging the front rib, a handle connected to said carriage, cutting means carried by said stock, a locking pin slidably carried by said carriage and the extension of the same, said extension being provided with a recess, a projection formed on said locking pin and adapted to be received Within said recess, and a coiled spring confined between said carriage and said extension, said locking pin being adapted to engage said rear rib whereby to lock the carriage to the rib,

4:. A plane comprising a stock having front and rear ribs, a carriage mounted on one of said ribs and having an extension engaging the other rib, a rib engaging pin carried by said carriage and the extension of the same and having a radial manipulating member adapted to engage the extension whereby to hold the pin in engagement with one of the ribs, said carriage and rib upon which the carriage is mounted being provided with undercut walls.

CHARLES A. TRUMP.

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