US561587A - Beand - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. C. M'. HILLEBRAND. SAWING MACHINE.

(No Model.) 2 Sheets-Sheet 2f.

C. M. HILLEBRAND.

SAWING MACHINE.

No. 561,587. Patented June 9, 1896.

16 Y 47 o 1 E E- 15 I4 IB y 47 il'Nirn Smarts CHRISTIAN M. IHLLEBRAND, OF LEMARS, IOXVA.

SAWlNG-VIACHINE.

SPECIFICATION forming part of Letters Patent No. 561,587, dated June 9, 1896.

Application tiled June 13, 1895. Serial No. 552,710. (No model.)

.To @ZZ whom t may concern:

Be it known that I, CHRISTIAN M. HILLE- BRAND, a citizen of the United States, residing at Lcmars, in the county of Plymouth and State oi Iowa, have invented a new and useful Sawing-Machine, of which the following is a specification.

My invention relates to sawing-machines particularly adapted for use in clearing land; and tlie objects in view are to provide an apparatus designed to be operated by steampower, as by a traction-engine of the wellknown construction employed for agricultural purposes, means being provided for adj u sting the sawing mechanism vertically, laterally, and angularly to adapt it for cutting standing timber or sawing logs into portable lengths, and, furthermore, to provide simple and efficient means for feeding the saw automatically in the direction of the cut.,

Further objects and advantages of this invention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims.

In the drawings, Figure 1 is a side view of a device embodying my invention. Fig. 2 is a plan view. Fig. 3 is a front view. Fig. et is a vertical central section. Fig. 5 is a detail transverse section to show the means for mounting the driving-shaft. Fig. 6 is a detail view in perspective of the carriage.

Similar numerals of reference indicate corresponding parts in all the figures oi' the drawings.

1 designates a traction-engine of ordinary construction, from the front end of which project parallel supporting-arms 2, provided at their front ends with bearings 3, having removable caps 4, and in these bearings are arranged trnnnions 5, connected at their inner ends by a yoke 0, one of said trunnions being hollow, as shown in Fig. 5. Projecting forwardly from said trunnions are the vertical guides 7, in which are mounted parallel guiderods, forming the side members of a frame 8, capable of linear adjustment in the direction of said side rods. The side rods of the frame 3 are connected at their upper and lower ends by means of spiders 9, having forwardly-divergent arms, at the intersection of which are formed bearings 10, in alinement with similar bearings in the upper and lower sides of the yoke G, and mounted for rotation in these registering bearings is a counter-shaft 11, parallel with the side rods of the trarne 3 of the vertically-adjustable frame. Feathered upon the shaft ll, between the sides of the yoke 6, is a beveled gear 12, with which meshes a pinion 13 on the inner end of a drivingshaft 14, mounted in said hollow trunnion, said driving-shaft carrying the belt-pulley 15, which receives motion from a belt 16, traversing a belt-wl1eel17, which is driven by the engine and forms a part thereof. In addition to the vertical adjustment, of which t-he parallel-sided frame is capable, it is adapted, by means of the trunnions of the pivotal guides 7, to swing in a vertical plane, the drivingshaft being coincident with the axis of movement of the guides, and hence of the main frame.

Mounted upon the vertical shaft or spindle 11 and adapted to swing in a plane perpendicular to the frame Sisaframe 18 of approximately triangular shape, provided with upper and lower alined bearings 19, which receive said spindle 11 respectively below the planes of the spiders 9, and this frame 18 carries parallel guides 20, upon which is mounted the reciprocatory cross-head or carriage 2l. The guide-rods 2O are fitted and secured in eyes 22 at the front end of the frame 1S and are connected at their front ends by means of a cross-bar 23, having eyes :for the reception of the extremities of the rods, and the cross-head or carriage is provided with bearing- eyes 24 and 25, which are fitted to slide upon the guides 20. The cross-head or carriage is provided at its center, near its front end, with a vertical opening or seat 26, an d is also provided in depending ears 27, near said front end, with horizontally-aimed openings or seats 28, and 29 represents a baradapted to be iitted in either the opening 26 or the openings 2S. Said bar is capable of longitudinal adjustment in either of said openings and is secured at the desired adjustment by means of a set-screw 30, and in order to prevent the bar from turning in the openings or seats it is secured by means of a key 31.

Secured to one end of the bar 29 is aholder 32, having a clamp 33 securedin place by bolts 3-it, and also provided with jaws 35, be-

IOO

tween which is secured the rear end of the saw-blade 36. A crank-arm 37 is keyed upon the lower end of the vertical spindle or shaft Il and is provided with a slot 38 for the reception of a pivot-bolt 39, by which connection is made between the crank-arm and the pitman 40, said pitman being fulcrumed at its front end to the cross-head or carriage by means of a wrist-pin 4l. The outer end of the guide-frame is held from sagging by a Y- shaped brace 42, having its upper rear end bolted to ears 43 near the upper end of the triangular frame 18 and having the extremities of its arms engaged with lateral ears 44 on the cross-bar 23.

As above described, the main frame S is swiveled by means of the trunnions 5 to the supporting-arms 2, and in order to secure said main frame at the desired inclination or in a vertical position I employ slotted retainingarms 45, which are pivoted to the lower spider 9 and are provided at their upper ends with slots 4G, engaged by adjusting-bolts 47. These adjusting-bolts may be engaged with any stationary part of the apparatus, and, as shown in the drawings, they are engaged with the rear ends of the supporting-arms 2.

Depending` from the trunnions mounted in the front ends of the supporting-arms 2 are brackets 4S, provided with bearings 49, which are in alinement with similar bearings 50 in the lower spider 9, said spider, as above described, forming a part of the main frame 8. Mounted at their upper ends in bearings formed in the brackets 48 are the adjustingscrews 5l, which are threaded in the bearings 50, whereby when the said screws are turned the main frame 8 may be adjusted vertically to arrange the saw-blade in the desired horizontal plane. The means which I employ for operating the adjustingscrews simultaneously embody a crank-shaft 52, mounted in bearings 53 and provided with beveled pinions 54, meshing with similar pinions 55 on the upper extremities of the adj ustin g-screws. It is obvious that the retainingbraces 45 must be released in order to allow vertical adjustment of the main frame, and when the desired adjustment is attained said brace may be fastened to secure the parts in position.

Itis obvious that when the bar 29 is arranged in the vertical opening of the crosshead or carriage the saw-blade is disposed to cut in a horizontal plane, and hence when the main frame has been adjusted to arrange said blade in the desired plane in order to cut at the desired distance from the surface of the ground (or below the surface by removing the soil contiguous to the tree) said frame should be locked by means of the retaining-braces 45 to prevent swinging movement in a vertical plane. This leaves the guide-frame 1S, which carries the parallel guide-rods 20, free to swing in a horizontal plane, whereby the blade may be advanced as the cutting operation proceeds. In order to regulate the advance movement of said guide-frame in order that the necessary forward pressure may be employed to secure an effective cut, I employ feeding mechanism including a segmental rack 56, concentric with the spindle ll and carried by the main frame 8, a pinion 57, meshing with the teeth of said rack, and means for turning said pinion. The spindle 58 of said pinion is mounted at its lower end in the lower side of the guide-frame 18, and above the pinion it carries a beveled gear 59, which meshes with a similar pinion (30, carried by a horizontal shaft Gl. Said shaft is mounted in bearings 62 on the guide-frame and terminates contiguous to the spindle ll in a friction-wheel 03, arranged in contact with a friction-disk 64, secured to said spindle Il. The friction-disk imparts rotary motion to the wheel, and this motion is communicated to the pinion meshing with the rack, and it is obvious that when the saw-blade encounters an obstacle such as a portion of wood which is of greater density the surface of the friction-disk and wheel are adapted to slip, and thus cause the saw-blade toexert the necessary pressure without a positive advance movement.

v Then the bar 20 is fitted in the horizontal openings 28 of the cross-head or carriage, the saw-blade is adapted to cut in a vertical plane, as in sawing logs, in which case the swinging guide-frame IS should be locked against movement in a horizontal plane by means of a locking-bolt G5, engaging a slot 66 in the segmental rack, and the retaining-brace 45 should be loosened to allow the main frame to swing in a vertical plane. In order to regulate the feeding of the saw in cutting in a vertical plane and prevent the cramping of the saw-blade by applying too great pressure, I employ counterbalancing-weights (57, connected by cords GS with arms {59,rising from the upper spiderl of the main frame. By varying the weight of these counterpoises the saw' may be caused to feed at any desired rapidity.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of this invention.

IIaving described my invention, what I claim is" l. The combination of a swiveled main frame adapted to swing in a vertical plane, means for securing said frame at the desired adjustment, a driving-shaft concentric with the axis of said frame, a rceiprocatory crosshead or carriage mounted upon guides supported by the main frame and adapted to carry a saw-blade, and connections between the cross-head or carriage and the drivingshaft, substantially as specified.

2. The combination with supporting-arms having bearings, of parallel guides having coaxial trunnions mounted in said bearings, a main frame having side bars mounted for vertical adjustment in said guides, means for IOO IIO

securing said frame at the desired vertical adjustment, a driving-shaft mounted concentric with one of the trunnions, a reciproca tory cross-head or carriage mounted upon the guides supported by the main frame, means for connecting a saw-blade to the cross-head or carriage, and connections between the cross-head or carriage and the driving-shaft, substantially as specified.

The combination with a swiveled main frame adapted to swing in a vertical plane, and means for securing the same at the desired adjustment, of a driving-shaft mounted concentric with the axis of the main frame, a guide-frame swiveled upon the main frame, a cross-head or carriage mounted upon the guide-frame and adapted to carry a saw-blade, and connections between the driving-shaft and the cross-head or carriage, substantially as specified. j

4. The combination with supporting-arms having alined bearings, of guides having trunnions mounted in said bearings, one of the trunnions being hollow, a main frame having parallel side bars mounted in said guides for vertical movement, means for securing said frame at the desired vertical adjustment, a guideframe swiveled upon the main frame and capable of swinging in a horizontal plane, a cross-head or carriage mounted upon the guide-frame and adapted to carry a saw-blade, a drivingshaft mounted in said hollow trunnion of one of the guides, and connections between the driving-shaft and the cross-head or carriage, substantially as specified.

5. The combination with supportingarms,

of guides havin g trunnions mounted in alined bearings, a main frame having parallel side bars mounted in said guides, ad j ustin g-screws mounted upon brackets supported by the trunnions and threaded in openings in the main frame, a guide-frame swiveled upon the main frame, a cross-'head mounted upon the guide-frame and adapted to support a sawblade, a driving-shaft mounted concentric with the trunnions of the guides, and connections between the driving-shaft and the cross-head or carriage, substantially as specified.

G. The combination of parallel pivotal guides having a common axis, a main frame having parallel side bars mounted to slide in said guides, adjusting devices mounted upon the trunnions and engaging the main frame to arrange the same at the desired vertical adjustment, retaining-braces pivotally connected to the main frame, means for securing said braces to lock the main frame against swinging movement upon the axis of the guides, a guide-frame carried by the main frame, a cross-head or carriage mounted upon the guide-frame and adapted to carry a sawblade, a driving-shaft mounted concentric with the axis of the guides, and connections between the driving-shaft and the cross-head or carriage, substantially as specifi ed.

,4. The combination with a swiveled main frame adapted to swing in a vertical plane, and means for securing the frame at the desired adjustment, of a drivin g-shaft mounted concentric with the axis of the main frame, a guide-frame swiveled upon the main frame to swing in a horizontal plane, a spindle mounted upon the main frame, feeding devices for the guide-frame operatively connected with the spindle, a cross-head or carriage for a saw-blade mounted upon the guideframe and operatively connected with the spindle, and connections between the driving-shaft and the spindle, substantially as specified.

8. The combination with a swiveled main frame 'adapted to swing in a vertical plane, and means for securing said frame at the desired adjustment, of a driving-shaft mounted concentric with the axis of the main frame, a guide-frame supported by the main frame, a

cross-head or carriage mounted upon the guide-frame and adapted to carry a saw-blade, connections between the driving-shaft and the cross-head or carriage, and counterbalancing-weights flexibly connected to the main frame above the plane of its axis, substantially as specified.

9. The combination with a swiveled main frame adapted to swing in a vertical plane, means for securing said frame at the desired adjustment, of a driving-shaft mounted concentric with the axis of the main frame, a guide-frame swiveled upon the main frame, a segmental rack carried by the main frame, a pinion carried by the guide-frame and meshing with the teeth of said rack, a cross-head or carriage mounted upon the guide-frame and adapted to carry a saw-blade, a spindle operatively connected with the driving-shaft and said cross-head or carriage, and connections between the spindle and said pinion, substantially as specified.

10. The combination with a swiveled main frame adapted to swing in a vertical plane, and means for securing said frame at the desired adjustment, of a driving-shaft mounted concentric with the axis of the main frame, a guide-frame swiveled upon the main frame to swing in a horizontal plane, friction feeding mechanism for the guide-frame, a cross-head or carriage mounted upon the guide-frame and adapted to carry a saw-blade, and connections between the crosshead or carriage and the feeding mechanism and the drivin g-shaft, substantially as speciiied.

11. The combination with a swiveled main frame adapted to swing in a vertical plane, and means for locking the frame at the desired adjustment, of a driving-shaft mounted concentric with the axis of the main frame, a guideframe swiveled upon the main frame and adapted to swing in a horizontal plane, a cross head or carriage mounted upon the guide-frame and provided with openings disposed, respectively, in vertical and horizon tal planes, a bar adapted to iit in either of IIO said openings, means for securing said bar my own I have hereto affixed my signature in against rotary and longitudinal movement, a the presence of tWo Witnesses.

holder secured to the bar and adapted to supi Y port a saw-blade, and connections between CHRISTIAN M HILLEBRAND 5 the driving-shaft and the cross-head or ear- Witnesses:

riage, substantially as specified. OTTO G. BERNER, In testimony that I claim the foregoing as GEO. D. VERNLI.

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