US1197482A

US1197482A - Sawing-machine.

Info

Publication number: US1197482A
Authority: US
Inventors: Willis E Harmon
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-02-06
Filing date: 1914-02-06
Publication date: 1916-09-05
Anticipated expiration: 1933-09-05

Description

W. E. HARMON.

SAWING MACHINE. v

APPLICATION mso ri. 6. 1914.

Patented Sept. 5, 1916.

5 SHEETS-SHEET I.

W. E. HARMON.

SAWING MAQHINE. APPLICATION FILED FEB. 6. I9I4.

W. E. HARMON.

SAWING MACHINE. APPLICATION FILED ma. 6. Ism.

1,197,482. l PaIenIed Sepn, 1916.

5 SHEETS--SHEET 3.

WIT 55555;. INM-1 VIIIIIIa www? c, Wawy* j? z W. E. HARMON.

SAWING MACHINE.

APPLICATION man ri. 6. 1914.

1,197,482. Patentedsept. 5,1916.

5 SHEETS-SHEET 4.

W. E. HARMON.

SAWING MACHINE.

.APPLICATION FILED FEB. 6. |914.

5 SHEETS-SHEET 5.

- a vcitizen of the United Sewing-Machines, v`a specification.

CUNITED STATES oFFIcE.

WILLIS E. Hannon, or MEcHANIcr'ALLs, MAINE.

sAWING-iILacHIIaE,y

To all whom it may concern Be it known that I, WILLIS E. HARMON, States, residing at Mechanic Falls, in the coggin and State of Maine, have invented certain new and useful Improvements in This invention relates to sawing machines. It can be readily mounted upon wheels or hub runners, thus adapting it for use on dirt or snow. It has'a drop axle and means for adjusting the height of the main frame.

rIhe saw is adapted to operate at any angle so as to fell trees and to cut them up, and in the latter case, equally well at whatever angle to the ground the tree may lie.

. In the drawings herewith accompanying and making a part of this application, Fig.'

ure l is a plan view of themain features of the machine; Figs. 2 and 3 form together a side elevation of the same; Fig. 4 is a detail view showing the clutch and its operating mechanism, the view being taken on the opposite side of the machine from that shown in Fig. 2; Fig.'5 isa detail view. of the clutch and means for holding it yieldingly out of action; Fig. 6 is a detail rear edge view of one .'of the castings which supports the saw driving sprocket; Fig. -7 is a detail plan view of the casting which supports the other saw driving sprocket, showy ing means of adjusting the position of the sprocket to vary the tension of the sprocket chain; Fig. 8 is an enlarged detail of the head of the connecting rod which drives the saw; Fig. 9 is a detail in horizontal section of Fig. 2 taken on line 1-1; Fig. 10 is a de, tail partly in section taken on line 2-2, Fig. l; Fig. 11 is an elevation of the circular. plate on the saw frame supporting bracket for' holding the saw vframe at thefproper anglev and Fig.A l2 is an enlarged detail plan view showing arrangement of the power trans-.

mitting mechanism.

Same reference characters indicate like parts in the several figures.

In said drawings, 1 is the main frame which is mounted upon a dropv axle 2 adapted to be supported in wheels?) or hub runners not shown, the wheel mount being shown in Fig. 1. The main frame is adjustable vertically by means of .a worm 4 on a rod 5 mounted in brackets 6 on frame 1 and meshing with a gear 7 on the axle. Rod 5 Specication of Letters Patent.

has a crank 5A county of Andros' of which the following is shaft 19A v y/carries a tension roll 35 adapted to bear on end and the turning of the worm causes the main frame to rise or fall.

Mounted 'on the frame is a motor 8 having a drlve shaft 9. Keyed on the end of shaft 9 1s asprocket 10 having a hub 11 in which 'is a bushingl12.

upright flange in bushing 12 Rotatably mbunted in an 13 r1g1d with the frame and is a shaft 14. `concentric with the motor shaft which shaft llt-extends beyond said flange and terminates in a bevel gear 15.v The motor shaft 9 carries a sprocket 16 keyed l Patented sept.. 5,1916. Application med February e, 1914.-' serial No. 817,040.

thereon. Pivotally mounted on a pivot barl 19 secured to the upright flange 13 is one arm 18 of a lU-shaped bracket. In the other arm 17 of this bracket is rotatably mounted 'a shaft 19A. The arm 17 is supported by a post A,1nounted in the frame. On said shaft 19A are mounted two clutch members 21A and

22A having sprockets

21 and 22 rechain 23, and sprocket 21 is connected to the sprocket 16 on shaft 14. by chain 24. '

Ihe sprockets

21 and 16 are idle when .the clutch 1s lnoperative; The clutch may be a common is provided with Va link 28 connected with an an angle lever pivoted jon the 4 arm 29 of main frame, the other arm 30 being con nected by 4a link 31 to one end of the clutch loperating lever 3.2. This lever 32 is vpivoted to the main frame and for convenience has arope 33 attached tothe end thereof and longenough to extend tothe position of the sawyer and by means of which he can throw spectively. The sprocket 22 is connected to Q75 sprocket 10 on the motor shaft by sprocket the clutch in andhold it in while sawing. l

When the clutch lever is released it is automatically thrown out by spring 26. The has a -double bent arm 2O which pivotallyfattached to the frame andthe other threaded and extended through a block 37 pivotally attached to the arm. The brace is movable in the block and is held in any desired position relative to the arm by means of nuts 88 on the brace above and below the block. Rotatably nrounted on said extension 13A of the fiange 18 is a forked bracket 39 having a vertical circular head 39A provided with a series of holes39B near the periphery whereby it can be locked to iangel at any desired angle by a pin 39C. U-shaped irons 39D serve as clamps to hold the bracket 39 in place. Bracket 39 extends ,to back of beveled gear 15 as seen at 34.

In bracket 39 is a shaft 40 at right angles to shaft 14 having a beveled gear 41 adapted to mesh with gear 15. Shaft 40 extends beyond the bracket and has a bushing 42 on which is pivotally mounted a casting 43 in which is set two tubular sleeves 44. Said casting alsohas bosses 45 to Awhich are sefcured guide plates 46, three in number, and

spaced apart to give entrance to the guide roll 47. Mounted upon said sleeves 44 at a suitable distance therefrom is a second casting 48 provided with bosses 49 to which are secured the other ends of the guide plates, the plates being bheld in place by nuts 50. On shaft 40 is mounted a chain sprocket 51 and in a slot 52 in casting 48 is mounted the axle of a chain sprocket 54,J

the axle 55 of which is adjustable in said slot by means of an adjusting screw 56.

Sprockets

51 and 54 carry a sprocket chain 57, one link 58 of which is provided with a pin 59.upon which is a guide roll 47 .adapted to travel in contact with guide plates 46u In sleeves 44 are slidable rods 61 to the ends of which is secured a cross head 62.` A driving rod 63 has an end pivotally connected with a spindle 64 on link 58 and the other end mounted on a spindle 65 turning on the head 62. Attached to said head in any suitable manner is a saw 66. On the main frame is a hanger 67 to which is pivotally attached an eye bolt 68 on which is a forwardly extending arm 69 carrying a dog 70 adapted to take into a log 71 to be sawed.' The end of the saw has a handle 7 6 by means of which the sawyer holds it upon the work and for his convenience a hand hold 77 is slidably mounted upon the handle, the hand hold remaining stationary while the saw handle reciprocates therein. A brace 72 pivoted to bracket 73 and to a block 78 on the log holder-69 assists in steadying the log holder as does also a brace 79 pivoted at one end to the frame and at the other end to an adjustable block 80 on the log holder. The saw frame is held against lateral vibration by a brace 81 having one end pivoted to the saw frame and the other end pivoted to a bearing 82 onsaw frame supporting bracket. The machine is provided with a tongue 83 which in turn is provided with a combined tongue supporting machine' anchor 84 slidably mounted in a holder 85 on the tongue.

The operation of my improved sawing mechanism is as follows: When the machine is properly placed relative to the log or tree the saw frame is turned on its support until the saw is at a proper angle to operate on the log. It is then fastened in that position and the motor started. The Sawyer pulling on the` rope sets the clutch and motion is thereby transmitted from the motor shaft through intermediate mechanism to the saw reciprocating mechanism. When the cut is completed and the rope released the spring throws the clutch out and the saw stops. When the machine is properly placed, if the main frame is not at proper elevation, it may be raised or lowered, as the lcase may be, by'

turning the shaft which carries the worm which is 1n engagement with the gear on the drop axle. When the machine is to be transported from place to place, or when not in use, the entire sawframe may be turned upwardly and backwardly upon the rest therefor provided on the main frame.

, The advantages of my improved machine are that it is portable; that the main frame is readily adjusted to different heights; and that the sawing mechanism is both pivoted and rotatable relative. to the main frame, whereby the saw operates at any anglef Having thus described my invention and its use I claim:

1. In a sawing machine, a main frame, a motor and motor shaft mounted thereon, a bracket rotatabl mounted on a horizontal bearing, a saw rame pivotally attached to said bracket to move vertically, a saw and saw operating mechanism and means intermediate the motor shaft and the saw frame adapted to impart action to the saw operating mechanism.

2. In a sawing machine, a main frame, a

motor and its shaft mounted thereon, a bev# shafts being adapted to mesh, a saw operating frame pivotally mounted upon said bracket, anda stationary rest upon the main frame positioned to support the saw operating mechanisml when turned on its vertical axis while the machine is being transported from place to place.

3. In a sawing machine, a main frame, a motor and its shaft mounted thereon, a beveled gear shaft mounted in bearings on said main frame and operable Athrough intermediate mechanism by the main shaft, a bracket rotatably mounted on said bearing provided with a shaft having a beveled gear, said beveled gears being adapted to be in mesh, a' .130

saw Operating mechanism supporting frame comprising two heads, one pivotally mounted upon said bracket, two sleeves mounted in said headthe other head secured to said sleeves, guide plates secured to said sleeve supports, sprockets, a sprocket chain carried by said sprockets, a saw head carrying a. saw, and a connecting rod pivotally attached to the saw head and to a link in said chain, whereby a reciprocating motion is imparted to said saw.

el. In a sawing machine, a main frame, a motor and its shaft mounted thereon, a beveled gear shaft mounted in bearings on said main frame and operable through intermediate mechanism by the main shaft, a bracket rotatably mounted on said bearing provided with/a shaft having a beveled gear, said bevleled gears being adapted to be in mesh, a

saw operating mechanism supporting frame comprising two heads, one pivotally mounted upon said bracket, two sleeves mounted in said head, the other head secured to said sleeves, two sprockets, one adjustable toward and away from the first mentioned head, guide plates secured to said sleeve supports, a sprocket f chain carried by said sprockets, a saw head carrying a saw, and a connecting rod pivotally attached to the saw Jhead and to a link in said chain, whereby a reciprocating motion is imparted to said saw.

5. In a sawing machine, a main frame, a motor and its shaft mounted thereon, a beveled gear shaft mounted in bearings on said main frame and operable through intermediate mechanism by the main shaft, abracket rotatably mounted on said bearing provided with a shaft having a beveled gear, said beveled gears being adapted to be in mesh, a saw operating mechanism supporting frame comprising two heads, one pivotally mounted upon said bracket, two sleeves mounted in said head, the other head secured to said sleeves, guide plates secured to said sleeve supports, sprockets, a sprocket chain carried by said sprockets having one combined link, guide roll andguide rod pivot, a sawr head carrying a saw, and a connecting rod pivot- Y ally attached to the saw head and to said link, whereby reciprocating motion is imparted to said saw.

WILLIS E. HARMON. Witnesses:

JOSEPH A. GERMAN, LENA L. FREENAN.