US582592A

US582592A - Signments

Info

Publication number: US582592A
Authority: US
Publication date: 1897-05-11
Anticipated expiration: 1914-05-11

Description

(N0 Model.) 2 2 Sheets-Sheet 1. W. J. TUNMORE.

SPALT EJEGTOR FOR SHINGLB SAWING MACHINES. No. 582,592.

Patented May 11, 1897.

(No Model.) 2 Sheets-Sheet 2.

W. J. TUNMORE. SPALT EJECTOR FOR SHINGLE SAWING MACHINES. No. 582,592.

Patented May 11, 1897.

THE nonms Pzrzas co.. FHO

UNITED STATES PATENT FFICE.

WILLIAM J. TUNMORE, OF OSHKOSH, WISCONSIN, ASSIGNOR, BY MESNE AS- SIGNMENTS, OF ONE-HALF TO- THE GEORGE OHALLONERS SONS COM- PANY, OF SAME PLACE.

SPALT-EJECTOR FOR SHlNGLE-SAWING MACHINES.

SPECIFICATION forming part of Letters Patent No. 582,592, dated May 11, 1897.

Application filed March 28, 1896. Serial No. 585,279. (No model.)

To all whmn it may concern:

Be it known that I, WILLIAM J. TUNMORE,

of Oshkosh, in the county of \Vinnebago and State of Wisconsin, have invented certain new and useful Improvements in Spalt-Ejectors for Shingle-Sawing Machines; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art IO to which it pertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to that class of shin glesawing machines which employa reciprocating carriage to move the blocks to be sawed back and forth over the saw and a tilt-table or support upon which they are dropped after each cut is made and by which they are tipped slightly in opposite directions, so as to cause the saw to cut the butts or points alternately from opposite ends of the blocks. Its main object is to avoid the inconvenience and dan- 2 ger of removing the spalts or residuum of blocks from the carriage by hand.

It consists, essentially, of a vertically-movable block-support applied to the tilt-table and mechanism under the control of the operator for dropping said support and raising it at the proper time to cause the carriage to pass in advancing over a spalt on said support and in returning to eject it from the machine.

3 5 In the accompanying drawings, like letters designate the same parts in the several figures.

Figure 1 is a plan View of a portion of a shingle-sawing machine to which my improvements are applied. Fig. 2 is a front elevation of the same. Fig. 3 is a rear elevation of the spalt-ejecting mechanism applied to the tilt-table or support, viewed from the side opposite that shown in Fig. 2; and Fig. 4 is a side elevation as viewed from the left 5 with reference to Figs. 1 and 2.

A designates the saw, B the carriage, and

O the tilt-table, of a shingle-sawing machine of a well-known type to which my improvements are applicable. The saw A is mounted so in the usual manner in a horizontal position on the upper end of a vertical arbor. (Not shown.) The tilt-table O is also mounted in the usual manner on the upper end of a Vertical bar 0, which has a jointed connection at or near its upper end with the frame of'5 5 the machine, so as to admit of tipping the tilt-table and a block resting thereon alternately in opposite directions in the usual manner for the purpose of cutting the butts or points of the shingles alternately from opposite ends of the shingle-blocks.

The carriage B, which may be of the usual form and construction employed in this class of machines, is supported and arranged to reciprocate horizontally upon parallel ways d cl on the frame back and forth over the saw and tilt-table. It is provided with suitable dogs I) b for engaging the ends of the shingleblocks and holding them in proper position to be sawed and with push-blocks or projec- 7o tions b b, which extend downwardly to a point close to the plane of the saw, so as to engage the shingle-blocks on the side opposite the saw and thrust them forward with the carriage against the saw.

The mechanism above described isor may be of the ordinary well-known construction in machines of this class, and I therefore make no claim thereto per 86.

For the attainment of the object hereinbefore stated I provide the tilt-table O with a vertically-movable block-support which may be conveniently made of two bars or ways E E, arranged parallel with the carriage-ways d d and pivoted in lines parallel therewith to 85 opposite sides of the tilttable O by means of rods 6 6. They are formed or provided at one end with slotted arms-c c, which are engaged by pins or projections on the arms of a U- shaped slide or casting F, as clearly shown in Fig. 3. The slide F is guided between vertical flanges or ways f f on the tilt-table O.

Alever G, fulcrumed at one end to the frame at g, extends therefrom transversely across the machine and has a horizontally-disposed 5 slot which loosely engages with a pin g on the slide F.

H is a bell-crank lever fulcrumed at h to the frame of the machine and having one arm connected by a link h with the free end of I00 lever G. The other arm of said lever II projects normally upward into the path of a vertically-movable pin I or other suitable trip applied to one side of the carriage B when said trip is moved into abnormal position. This arm of said lever is provided on the side toward the saw with a toe or projection 72 adapted to engage the lower end of said pin and restore it to normal position, as hereinafter explained. The carriage B is also provided at the front end in line with the upper end of lever II with an overhanging or depending projection J, adapted to restore the lever II to its normal position after it has been operated by the trip I.

The spalt-ej ectin g in eehanism herei nbefore described operates as follows: Assuming that the block-supportin g ways E E of the tilt-table O are in their elevated or normal position, as shown in Figs. 1, 2, and at, and the operator desires to eject a spalt, he thrusts the trippiu I downward while it is behind lever II. In this position as the carriage returns over the tilt-table the lower end of said pin will engage the upper end of lever II and throw it forward. This movement of said lever raises lever G and the slide F, connected therewith, and the pins on said slide engaging with the slotted arms a throw them upwardly and the block-supportin g ways E E downwardly into the positions in which they are shown in Fig. 3, thus dropping the spalt resting upon said ways below the path of the push-block b b and out of range with the dogs I) l) of the carriage, so that when the carriage advances said push-blocks and dogs will clear the spalt, leaving it upon the tilt-table. The same movement of said lever II causes the projection 7L2, engaging the lower end of trip-pin I, to thrust said pin upwardly into its normal position out of range with the upper end of the lever, when it is turned into either its extreme forward or backward position. As the carriage approaches the limit of its advance movement the upper end of lever II is engaged by the projection J and thrown backward into its normal position, thereby raising the block-supporting ways E E and the spalt resting thereon to their normal positions, as shown in Figs. 1, 2, and 4, through the leverconnections hereinbefore described. As the carriage returns again over the tilttable the push-blocks b b will engage with the back side of the spalt thus elevated into range therewith and will thrust it forwardly 0% from the ways E E and eject it from the machine.

I do not wish to be understood as limiting myself to the details of mechanism herein shown and described as embodying my improvements, for they may be variously changed and modified within the spirit and intended scope of my invention.

I claim- 1. In a shingle-sawing machine, the combination with the saw, tilt-table and a reciprocating carriage, of a block-support applied to the tilt-table and movable toward and from the plane of the saw, and mechanism for dropping and raising said support at the proper time independent of the tilting mechanism to cause the carriage to pass in advancing over a spalt on said support, and in returning to thrust it therefrom, substantially as and for the purposes set forth.

2. In a shin gle-sawing machine, the combination with the saw, tilt-table and a reciprocating carriage, of a block-support applied to the tilt-table and movable toward and from the plane of the saw, operating connections with said support for lowering and raising the same independent of the tilting mechanism, and a trip movable into abnormal position to en gage a part of said operating connections and to lower said block-support at the proper time, substantially as and for the purposes set forth.

8. In a shingle-sawin g machine the combination with the saw, tilt-table and reciprocating carriage, of a block-support inovably connected with the tilt-table, an operating connection for moving said support from and toward the plane of the saw independent of the tilting mechanism, a trip applied to the carriage and movable into abnormal position. to engage said operating connection and to move said block-support away from the plane of the saw, and a projection on the carriage for restoring said support to normal position at the proper time, substantially as and for the purposes set forth.

4. In a shingle-sawin g machine the combination with the saw, tilt-table and reciprocating carriage, of a block-support consisting of block-supporting ways pivoted to the tilttable parallel with the carriage-ways, a lever fnlcrumed to the frame of the machine and connected with said ways so as to drop and raise them independent of the tilting mechanism, and a trip applied to the machine and movable into and out of range of said lever, substantially as and for the purposes set forth.

5. In a shingle-sawing machine the combination with the saw, tilt-table and reciprocatin g carriage, of a block-support consisting of ways or bars pivoted to the tilt-table parallel with the carriage-ways, and provided with slotted arms, a slide having pinsloosely engaging with said slotted arms and arranged to drop or raise said bars simultaneously, a lever connected with said slide, and projections on said carriage arranged to engage with said lever and to throw it in opposite directions, one of said projections being movable into and out of range with said lever, substantially as and for the purposes set forth.

6. In a shingle-sawing machine the combination with the saw, a tilt-table adapted to be tipped alternately in opposite directions, and a reciprocating carriage movable back and forth over the saw and tilt-table, and provided with dogs and with depending push-blocks, of a block-support consisting of bars pivoted to the tilt-table parallel with the carriage-ways,

a lever connected with said ways so as to drop and raise the same simultaneously, and projections on the carriage adapted by engagement with said lever, to drop and raise said ways at the proper times, one of said projections being movable into and out of range with said lever, substantially as and for the purposes set forth.

7. In a shingle-sawing machine the combination with the saw, tilt-table and carriage, of block-supporting bars E E, pivotally connected with the tilt-table and provided with slotted arms 6 e, a vertically-movable slide F having pins loosely engaging with said slotted arms, a lever G fulcrumed to the frame of the machine and connected with said slide, a bell-crank lever I-I linked at one end to the witnesses.

WILLIAM J. TUNMORE. Witnesses M. O. PHILLIPS, ELLA F. J AOKMAN.