US1248155A

US1248155A - Miter-box and calculator.

Info

Publication number: US1248155A
Authority: US
Inventors: Peter E Parsons
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-11-08
Filing date: 1916-11-08
Publication date: 1917-11-27
Anticipated expiration: 1934-11-27

Description

5 SHEETS-SHEET, l-

Patented Nov.. 2,7', 1.917.

P. E. PARSONS.

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P. E. PARSONS. MTEH BOX AND CALCULATOR. APPLICATION FlLED Nov. 191s.

aten'ted Nove 27, HHK

5 SHEETS-SHEET 2.

P. E. PARSONS.

MITER BOX AND CALCULATOR. APPLfcAnoN FILED Nov. s; 191s.

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Patented Nov. 27, MN?.

5 SHEETS-SHEET 3.

P. E. PARSONS.

MITER BOXAND CALCULATOR.

APPLlcAnoN FILED Nov. a. |916.

Lml. PatentedNv. 27, 1917 5 SHEETSf--SHEET 4- PE. PARSONS. MITER BOX AND CALCULATOR. APPLlcATIoN HLED Nov. a. |916.

Patnted Nov. 27,191?

5 SHEETS-SHEET 5.

PETER E. PARSONS, OF SALT LAKE CITY, UTAH.

MITER-BOK .AND CALCULATOR.

Specification of Letters Patent.

Patented Nov. WI, i917.

Application filed November 8, 1916. Serial No. 130,211.

To cZZ. ff/wm t may concern.'

Be it known that l, Ferne E. PAnsoNs, a citizen of the United States, residing at Salt. Lake City, in the county of Salt Lake and State of Utah, have invented certain new and usei'ul improvements in Miter- BoXes and Calculators, of which the following is a specication.

This invention relates to an improved miter boX and calculator and has as its prmary object to provide a device of this char-` acter adjustable forinaking a miter out at various horizontal angles and independently adjustable for making a miter cut at various vertical angles to, if desired, impart a bevel to the miter.

rllhe invention has as a further object to provide a device of this character wherein the horizontal angularity of the miter cut will be determined simultaneously with the adjustment or the device to make the cut and indicated in degrees oi' a circle and also in terms of the iigures of the commonly employed carpenters steel square.

The invention has as a further object to provide an arrangement wherein Athe vertical angularity oi' the cut will be determined with the adjustment of the device to make the cut, and wherein such angularity of the cut will be simultaneously determined and indicated in degrees of a circle aS well as in ter ns of the lfigures ot a carpenters square as in the instance oir' the horizontal cut.

A still further vobject of the invention is to provide a construction wherein the diagonal length of the miter cut will be given or indicated Simultaneously with the adjustment of the device to make the cut.A

The invention has as a still further object to provide an arrangement wherein, in cutting rafters or the like, the pitch of the cut will be given or indicated upon the adjustment of the device to make the cut.

The invention has as a turther object, as

will be seen in view of the foregoing, to

provide a device of this character wherein, upon being ,given the angularity of a certain miter cut, either in terms of the degrees of a circle or terms oi the figures of a carpenters square, or being given the pitch of a certain cut desired, the device may be readily adjusted to make the said cut at the proper angle and at the same time determine the diagonal length oi' the cut per foot run ott the stock. i

Other and incidental objects will appear as the description proceeds and in the drawings wherein l have illustrated the prefered embodiment of the invention and wherein similar reference characters desionate corresponding parts throughout the several views,

Figure l is a front elevation of my .iniproved device particularly showing the manner in which the body of the base or the miter box is cut-away to receive the carriage for the saw lead and guide;

Fig. 2 is a plan view with the saw lead and guide removed and particularly showing the arrangement of the scale plates cin-- ployed beneath the bed of the box proper;

Fig. 3 is a horizontal Sectional. view more particularly showing` the manner in which the body of the base is thickened to receive the carriage tor the saw lead anc guide;

Fig. l is an end elevation particularly illustratingv the mounting of the saw lead and guide upon the carriage;

Fig. 5 is a plan view, showing the carriage in detail;

Fig. 6 is a fragmentary sectional view more particularly showing the mounting ot the carriage;

Fig. 7 is a perspective view showing the box proper of the device detached and illustrating' the adjustable mounting of the back or' rence of the box;

Fig. S `is a detail sectional view particularly illustratingl the adjustable mounting oi' the bed of the box proper;

Fig. 9 is a fragmentary plan view or the scale plates and graduations thereon;

Fig. l0 is a fragmentary elevation ot the saw lead particularly showing the manner in which the saw guide is connected thereto, and A Fig. 11 is a plan view showing the saw guide detached.

In carrying out the invention, the device is formed with a base having a body l0 con` nected at its extremities, as particularly shown in Fig. 3, with supporting members or legs ll with the body l0V extending horizontally between the said members. Midway between its ends, the body l() is cutaway upon the upper side thereof, as shown at l2, seen particularly in Fig. l, and is provided with a transversely thickened portion 13 forming a bearing for the carriage of the device. This carriage is best shown in Figs. 5 and 6 of the drawings and includes crossed armsl/i and 15, respectively, arranged at llO substantially right angles to each other` rihe arm 14 is solid, while the arm 15 isk bifurcated adjacent its intersection `with the arm 14 to form spaced members 1G extending upon opposite sides of the center of the arm 14 and terminating at their outer extremities in bearing sleeves 17 arranged in v 13 of the body 10 and at its lower extremity is equipped with a washer 21 and a pin 22 for rotatably connecting 4the carriage with the body with the

arms

14 and 15 of the carriage received within the cut-away portion 12 of the body.v A set screw 23 is threaded through the forward side of the bearing to engage the shaft 2O for holding the shaft at swinging adjustment.

Rotatably fitted through the sleeves 17 of the arm 15 of the carriage to extend transversely through the arm 14 is a horizontal shaft 24 which, at one side of the arm 14, is provided with a stop collar 25 while a beveled pinion 26 is keyed to the said shaft upon the opposite side of the said arm. The purpose of this pinion will presently appear. At its forward extremity, the shaft 24 is squared to receive a hand wheel 27, while the rear extremity of the shaft is formed to receive an upstanding saw lead or post 28 connected with the said shaft by a nut 29 with a suitable washer 30 interposed between the nut and the post. The post or saw lead 28, at the upper extremity thereof removably carries an upstanding loop forming spaced arms 31 and slidably mounted upon the said arms is a saw guide.

The saw guide includes spaced horizontal arms 32 provided at their inner extremities with mating transversely extending members 33 received between the arms 31 of the post 28and formed adjacent their upper and lower extremities with lugs or

sleeves

34 and 35 respectively, projecting from the outer sides of the said members and slidably lreceiving the arms 31 for slidably connecting the saw guide with the lead 28 with the said saw guide projecting forwardly over lthe body 10. At their outer extremities,` the arms 32 are formed with upstanding mating members 3G and it will now be noted that the saw gnide is formed in sections with each section including one of the arms 32,

upon reference to Fig. 1, the

members

33 and 36 are cut-away to slidably support `the saw with the saw blade disposed for movement between the arms 32 of the guide, the guide, of course, being adjustable vertically upon the arms 31 of the lead 28 for either rais ing or lowering the saw with respect to the body l0.

Mounted upon the body 10 of the base, is a stepped annular plate receiving frame 37 which is received within the cut-away portion 12 of the body and is provided at opposite sides thereof with lateral ears 38 lying flush with the upper edge of the body and secured to the said body by screws or otherV suitable fastening devices for connecting the frame with the body. Mounted within the frame 37 is an annular scale plate 39 concentric with the axis of rotation of the carriage previously described. Fitting loosely within the plate 39, is a similar plate 40 and arranged within the plate 40, is a similar plate or disk 41. The plate 40 is seated upon a plurality of upstanding blocks or lugs 42 formed on the

arms

14 and 15 of the carriage adjacent the outer extremities thereof with the said plate secured to the said blocks by screws or other suitable fastening devices.

The plate 41 is carried by a pinion 43 pro vided with an upstanding squared shank projecting, as particularly shown in Fig. 6, through the said plate with the said pinion seating upon the bearing 18 of the arm 14 of the carriage and rotatably mounted upon the pin 19. Connecting the plate with the said pinion to rotate therewith is a small disk 44 whichreceives a screw or other suitable fastening device 45 threaded into the pin 19. The purpose of the pinion 26 now becomes apparent since this pinion is arranged to co` operate with the pinion 43 and it will be observed that the plate 39 is fixed with respect tothe carriage, while the plate 40 is mounted to move with the carriage. As will' frame 37 to overlie the

plates

39, 40 and 41,`

is a glass or other suitable transparent pane 46 adapted to protect the said plates from dirt or from saw-dust falling from the box proper. j

The box proper is mounted upon'the base and includes a bed 47 and a sectional back or fence 48 arranged at substantially right angles thereto. The bed is arranged to extend horizontally Vbetween the end members 11 of the base and, as shown in detail in Fig. 8, is provided adjacent opposite extremities thereof with a plurality Yof transversely spaced sockets 49 adapted to selectively receive pins 50 upstanding,` from the members 11 for adjusting the bed upon the base with respect to the saw lead. ThisV adjustmentis of advantage' in handling stock of different sizes. As particularly ioo shown in Fig. 7, the sections of the back or fence a8 of the boi: proper are, respectively,

provided adjacent opposite extremities thereof with longitudinally extending slots 5l which receive suitable pins 5:2 projecting laterally from the rear edge of the bed di' and carrying Wing nuts 53 adjustably connecting the sections of the back With the bed. The sections, at the confronting ends thereof, are cut-aivay in the usual manner to receive the saw and may be moved with respect to the bed to accommodate the san for making different miter cuts.

From the preceding description, it will now be seen that the hand Wheel 27 may be grasped to swing the carriage upon the stub shaft 2O in either one direction or the other to, accordingly, shift the saw carried by the saiv guide for making initer cuts at various horizontal angles. lVhen the carriage is so swung, the beveled pinion 2G Will, through the beveled pinion d3, act to turn the plate 4l With the carriage. By rotating the shaft 2st in either one direction or the other, the saw lead 28 may be tilted to, consequently,

tilt the san7 for making miter cuts of various vertical angles and a set screu7 54 is provided for holding the shaft at adjustment, this set screw being threaded through the outermost sleeve of the arm 15 of the saiv guide to engage the said shaft. Accordingly, miter cuts may be made at various horizontal angles Without respect to the adjustment provided for tilting the saw to make cuts at vertical angles and miter cuts at various vertical angles may be made Without reference to the adjustment provided for making the miter cuts at different horizontal angles. However, it Will be noted that the carriage may be adjusted for making a miter cut at a horizontal angle and the shaft 24 operated for tilting the saiv lead With respect to the vertical to, consequently, impart a bevel to the miter cut, this arrangement being 0f advantage in cutting rafters and the like. 'In this connection, attention is directed to the fact that When the shaft 24 is rotated to adjust the saw for making miter cuts at various vertical angles, the beveled pinion 26 ivill act upon thepinionl to correspondyingly rotate the plate ell with respect to the plate l0.

Having thus described the mechanical operation of the device, the means provided for determining the horizontal and vertical angularity of any particular miter cut will noiv be set forth, as Well as the means for determining the diagonal length of the cut per foot run of the stock or the pitch of the cut when cutting` rafters and the like, The plate 39, adjacent its inner margin is, as particularly shown in Fig. 9, provided at opposite sides thereof with radial graduations havin(v at each side of the plate, oppositely reading` scales A beginning at opposite sides of a diametric line through the plate. Each of the scales il comprises the numbers from l to Q4, reading consecutively, these numbers Correspendingl to the numbers on the blade of the commonly employed carpenterls steel square. Arranged immediately about the several scales A are a plurality of scales B haring graduations associated therewith, corresponding to the Oraduations of the scales A. Each of the scales B comprises computations in inches and decimal fractions thereof for diagonal lengths per foot run of the stock. Arranged around the scales B, at the outer margin of the plate, are' graduations corresponiling to the graduations of the scales il and E and having scales C and D, respectively, associated therewith and comprising, at one side of the plate in the scale C, fractional numbers indicating the degree of pitch for conimon rafters and, the opposite side of the plate in the scale D, fractional numbers indicating the degree of pitch for hip or valley rafters. rlhe plate d0, adjacent one side thereof, is provided with radia graduations having opposite reading scales E associated therewith and each comprising the numbers from l to 24C, reading consecutively, these numbers correspendingl to the numbers upon number upon the tongue of a carpenters square, and at its diametric opposite side with another character lvl, preferably constituted by a zero mark. Also, the plates 39 and a0 are provided at one side thereof on the diametric line from Which the oppositely reading scales of the said plates begin with characters I and l respectively, preferably constituted by the double zero mark on the plate 39 and by the number l2 upon the plate /lO, the number l2 also representing` this number on the tongue of a carpenters square. The plate l0 is further provided at the side thereof opposite the character J and on the said diametric line with a character K preferably constituted by the number 17 representing this number upon the tongue of a carpenters square.

Assuming noiv that it is desired to cut a miter of a given horizontal angle and, as an illustration, such angle will be assumed to be 45 degrees. To make this cut, the hand Wheel 27 may be grasped and the carriag'e swung in either one direction or the other, depending upon the VWay it is desired to make the cut upon the stock, until the plate 40 assumes a position With the graduation of the scale F reading 45 degrees arranged opposite the character l or the double zero mark upon the plate 89. The set screw 23 may then be operated for holding the carriage at adjustment. Movement of the carriage. will, of course, swing the saw to make theV cut at the angle of adjustment of the carriage. lVith the plate 40 thus adjusted, it Will be noted that the characer J or the number 12 will be brought opposite the number 12 on the adjacent scale A. .'lhus, a miter cut at a horizontal angle of 45 degrees Will be designated by the

numbers

12 and 12 upon a carpenters square. Consequently, When the carpenter is unfamiliar With the operation of determining the angle by degrees, the present device Will indicate the desired angle in terms of the figures upon the carpenters square. Having thus determined the angle of the miter cut, the operator may now consult the scale C at the graduation opposite the registering graduations of the character J and the adjacent scale A, or the registering

numbers

12 and 12 for determining the pitch of the miter for common rafters, such pitch in the instance given being one-half pitch with the adjacent scale B giving the computation of seventeen and sixty-nine hundredths inches as the diagonal length of the cut per foot run of the stock.

In the event hip or valley rafters are being cut, the adjacent scale D upon the plate 39 may be consulted at the character K, or the number 17 upon the plate 40, for determining the pitch of the cut, such pitch, in the instance given, being indicated as seventeen twenty-fourths pitch With the adjacent. scale B upon the plate 39 giving the computation of twenty-four inches as the diagonal length of the cut per foot run of the stock. ln this connection, it is to be observed that a cut for a hip or valley rafter at a horizontal angle of 45 degrees will be designated by the registering numbers 17, or the character K, and the number 17 upon the adjacent scale A of the plate 39, these numbers corresponding to the same numbersupon a earpenters square. Consequently, should the carpenter be unable to ascertain the angle by degrees, the numbers corresponding to the numbers upon the carpenters square could be used for adjusting the device to make the cut for hip or valley rafters at the said angle.

As Will now be seen, the device may be adjusted in a manner similar to that above set forth for positioning the savv to make a miter cut at any desired horizontal angle and When adjusted the

scale plates

39 and 40 may be consulted for determining the particular angle of such adjustment, for de-l termining the pitch of the miter either for common rafters or for hipor valley Vrafters and also determining the diagonal length of the initer cut per foot run of the stock. Also, it will be seen that should only the pitch be given for a desired miter cut, the carriagepmay be adjustedby means of the several scales A, B, C, D, E and the characters J and l for positioning the carriage to set the saW to make ak cut at the desired pitch with the angle of the cut indicated in degrees of a circle, as Well as by the figures of a carpenters square.

Assuming noiv that it is desired to give a vertical inclination toV the miter cut for imparting a bevel to the miter, the hand Wheel 27 is turned to rotate the shaft 24 and, con- A Y sequently, tilt the saw lead 28 to incline the saiv. The shaft 24 may, of course,be turned in either one direction or the other, depending upon the direction in Which it is desired to bevel the miter, with the set screw 54 operable for holding the said shaft at adjustment. Continuing With the illustration above given With the carriage set for making a miter cut at a horizontal angle. of 45 degrees, it Will be assumed that it is desired to impart a bevel to this miter of 33 degrees more or less. Rotation of the shaft 24 to tilt the saw Will, as previously explained, simultaneously turn the plate 41 and, to adjust the saw for the vertical angle given, the said shaft is rotated until the character. H or thezero mark upon the plate 41 is brought opposite the graduation reading 33 degrees of the scale F upon the plate 40. `With the plate 41 so positioned, the saw will be properly tilted to bevel the miter cut at 33 degrees. However, assuming that the operator were unfamiliar With determining angles by degrees, it Will be noted that adjustment of the plate 41, as just set forth, would bring the character G or the number 12 upon the said plate opposite the number 8 upon the adjacent scale E of the plate 40.V Thus, the vertical angle of 33 degrees would be .indicated by the figures 12 and 8 upon the carpenters square so that the operator could set the saw at the desired vertical angle by means of these numbers. Thus, the device may be adjusted for making a miter cut at any desired vertical angle and, Vin the instance given, such cut would be at 45 degrees horizontal angle and 33 degrees vertical angle, indicated in the first instance by the

numbers

12 and 12 upon the carpenters square and in the latter instance by the

numbers

12 and 8 upon the carpenters square. Moreover, it will be seen that by consulting the scales upon

vthe plates

39, 40 and 41, the adjustment of the carriage or the saW lead required for making a cut of any desired horizontal or vertical angle may be easily and quickly determined.

Having thus described the invention, what is claimed as new is:

l. A device of the character described including a base, a bed carried thereby, a carriage mounted upon the base, a shaft rotatably mounted upon the carriage, a saw guide connected with the said shaft, `the shaft being rotatable for adjusting the saw guide with respect to the vertical and the carriage being adjustable for positioning the saw guide horizontally with respect to the bed, a scale plate mounted upon the base in a plane with the carriage and fixedwith respect thereto, a second scale plate connected to the carriage in a plane with the said first mentioned plate, and a scale plate mounted upon thecarriage to swing in a plane therewith and operatively connected with said shaft for adjustment thereby with respect to the said second mentioned scale plate, the several scale plates being adapted to coact for determining the angularity of the saw guide. i

2. A device of the character described including a base, a carriage rotatably mounted thereon, a bed carried by the base, a saw guide mounted upon the carriage, the carriage being adjustable for positioning the saw guide horizontally with respect to the bed, an annular scale plate supported by the base in a plane with the carriage and fixed with respect thereto, and a scale plate concentric with said first mentioned plate and movable with the carriage in a plane with said first mentioned plate to co-act therewith for determining the horizontal angularity of adjustment of the saw guide.

3. A device of the character described including a base, a carriage mounted thereon a shaft rotatably mounted upon said carriage, a saw guide connected with said shaft, the shaft being adjustable for positioning the saw guide with respect to the vertical, a scale plate mounted upon the carriage, a second scale plate arranged in a plane with said first mentioned plate, and an operative connection between the shaft and said second mentioned scale plate for adjusting the second mentioned scale plate with respect to the first mentioned scale plate to coperate therewith for determining the angularity of adjustment of the saw guide simultaneously with the adjustment of the said saw guide.

t. A device of the character described including a base, a carriage mounted upon the base, a shaft rotatably mounted upon said carriage, a beveled pinion keyed to the said shaft, a beveled pinion meshing with said first mentioned pinion and rotatably mounted upon the carriage, a saw guide connected with said shaft, a scale plate mounted upon the carriage, and a second scale plate connected with `said second imentioned pinion torotate therewith, the said shaft being operable for adjustably positioning the saw guide with respect to the vertical and simultaneously rotating said second mentioned scale plate with` respect to said first mentioned scale plate for determining the angularity of adjustmentofthe saw guide.

5. A deviceof the character described including a base,ia carriage mounted thereon, a frame connected with the base, a bed mounted upon the base in a plane with the carrier, a saw guide mounted upon the carriage and adjustable with respect to the -vertical thereon, the carriage being adjustable upon the base `for positioning the saw guide horizontally with respect to the bed, a scale plate fixed within said frame, a second scale plate connected with the carriage to swing in a plane therewith and surrounded by said first mentioned plate, and a third scale plate mounted upon the carriage and adjustable independently*thereon with said plate surrounded by said second mentioned plate, the said plates being adapted to coact for `determining the horizontal and vertical angularity of adjustment of the saw guide.

G. A device of the character described including a base, a carriage mounted thereon, a saw guide adjustable upon the carriage with respect to the vertical, a horizontally arranged scale plate mounted upon the carriage, means rotatably mounted upon the carriage, a second scalo plate carried by said means in a plane with said first mentioned plate, and means for rotating said first mentioned means for adjustably positioning said second mentioned scale plate to coact with said first mentioned plate for determining the vertical angularitj7 of the saw guide.

7. A device of the character described in cluding a base, a carriage rotatably adjustable horizontally thereon and formed with a plurality of radial arms, a scaleplate mounted upon the base in a plane with the carriage, a scale plate connected to said armsto swing in a plane with the carriage and with said first mentioned plate to coact therewith for determining the angularity of the horizontal adjustment of the carriage, a shaft mounted upon the carriage, and a saw guide carried by the said shaft and adjustable thereby with respect to the vertical with the shaft movable to swing the carriage.

8. A device of-the character described including a base, a carriage mounted thereon and provided with oppositely disposed arms, sleeves formed on said arms, a shaft rotatable in said sleeves, a saw guide connected to said shaft, the shaft being rotatable for adjusting the saw guide with respect to the vertical, a horizontally arranged scale plate mounted upon the car,-

riage, a second scale plate arranged -upon the carriage in a plane with said rst mentioned plate and Vconnecting means between the said shaft and said second mentioned plate forV adjusting the said second-men tioned plate with respect to said rst mentioned plate for determining the vertical angularity of adjustment of the saw guide upon the' rotation of said shaft.

9. A device of the character described including a base provided with upstanding pins, a carriage mounted upon the base, a saw guide mounted upon the carriage, and

a box proper arranged upon the base andV including a bed having sockets formed therein adapted to selectively receive said pins for adjusting the box transversely upon the base.

10. A device of the character described including a base, a carriage mounted thereon, a saw guide mounted upon the carriage, a bed arranged upon the base, a sectional fencearranged to coact with the bed and having slots formed therein, and means carried Vby the bed and projecting through said slots, the said means being operable for. adjusting the sections of the fence longitudinally of the bed. 11. A device of the character described including a base, a carriage swingingly mounted upon the base, a shaft rotatable upon the carriage, a saw guide mounted upon the shaft, the shaft being operable for positioning the saw guide with respect to the vertical and the carriage being adjustable for positioning the saw guide horizontally with respect to the base, concentric scale plates arranged in a common plane to coact. with each other, and connecting means between the said shaft and one of said plates, the plates being movable with respect to each other upon the rotation of the shaft and the swinging of the carriage for determining the horizontal and vertical angularity of the saw guide.

12. A device of the character described including a base, a carriagemounted upon the base, a shaft rotatable upon the carriage, a saw'guide carried by the said shaft, the shaft being rotatable for adjusting the saw guide with respect to the vertical and the carriage beingadjustable for positioningthe saw guide horizontally with respect to the base, coacting scale plates arranged with certain of the said plates adjustable with respect to each other simultaneously with the adjustment of the carriage for determining the horizontal angularity of the saw guide, and connecting means between the said shaft and another ofsaid plates for moving the said last-mentioned plate with respect to one of said first-mentioned plates upon the vertical adjustment of the saw guide for determining the vertical angularity of the saw guide. f

13. A device of the character described including a base, a carriage mounted upon the base, a shaft rotatable upon the carriage, a saw guide mounted upon said shaft, the shaft being rotatablefor adjusting the saw guide with respect to the vertical and the carriage being adjustable for positioning the saw guide horizontally with respect'to the base, an annular scale plate fixed with respect to the carriage, an annular scale plate movable with the carriage, Van annular scale plate adjustable independently of the carriage, and connecting means between the said shaftand the said last-mentioned. plate, the several plates beingadaptedto coact for determining the horizontal and vertical angularity of the saw guide.

14. A device of the character described including a base, a carriage mounted thereon, a shaft rotatable upon the carriage, a saw guide mounted upon the said shaft, a

scale plate, a second scale plate arranged to' coact with said first-mentioned plate, and connecting means between the shaft and said second-mentioned plate, the shaft being rotatable for adjusting the saw guide with respect to the vertical and shifting the said plates with respect to each other forcdetermining the vertical angularity of adjustment of the saw guide. j

15. A device of the character described including a base, a carriage mounted to swing thereon, a shaft rotatable upon the carriage, a saw guide mounted Aupon said shaft, a pluralityV of concentric coacting scale plates, and connecting means betweenV the said shaft and one of said plates, the carriage and the said shaft being rotatable for adjustingthe saw guide in horizontal and Vvertical planes respectively with the plates adapted to coact for determining the horizontal and vertical angularity of adjustment of the saw guide.

In testimony whereof l aiiix my signature.

PETER E. PARSONS. [Ls] Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Eatents,

Washington. D. C.