US487407A

US487407A - gould

Info

Publication number: US487407A
Authority: US
Publication date: 1892-12-06
Anticipated expiration: 1909-12-06

Description

(No Model.) 4 S'heelss-Sheet 1.

I S. A. GOULD.

BORING MACHINE.

No. 487,407. v13a/:sented Deo. 6, 1892.

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lllll (No Model.) l 4 sheets-sheet 3t S. A. GOULD.

BORING MACHINE. l No. 487,407. Patented Dec. 6,1892.

UNITED STATES PATENT OFFICE.

SAMUEL A. COULD, OE CHICAGO, ILLINOIS, ASSIGNOR OE TVVO-THIRDS TO GEORGE R. BLANCHARD AND ALFRED H. BROWN, OF SAME PLACE.

BORING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 487,407, dated December 6, 1892. Application tiled January 19,1891. Renewed November 5, 1892. Serial No. lI51,030. (No model.)

T0 a/ZZ whom it may concern:

Be it known that I, SAMUEL A. GoULD, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Boring-Machines, of which the following is a specification.

The improvements are embodied in the machine which is illustrated in the drawings attached hereto, of which- Figure l is a plan of said machine; Eig. 2, a side elevation thereof; Fig. 3, an end elevation, and Figs. 4, 5, 6, and 7 detail views of different portions.

In laying' the ordinary tongue-and-groove iiooring it is customary to secure the boards to the 4joists or sheeting upon which they are laid by means of nails driven at an incline into the forward edges of the boards in the angle between the upper side of the tongue and the edge of the board. The laying of the flooring is greatly facilitated by boring the lumber at proper intervals to provide holes for the insertion of the nails before laying the boards. This avoids splitting the latter, insures regular spacing of the nails, and saves the labor of driving them through the boards, which in the case of hard-wood liooring is eX- ceedingly diicult.

My invention relates to a machine designed to bore the holes in the fiooring at such distances apart as may be desired, which shall preferably be wholly automatic and perform the desired operation while the lumber is in continuous motion through the machine.

Said invention consists in variousimprovements, which when combined, as illustrated in the drawings, make u p an exceedingly-satisfactory machine. Many of said improvements may, however, be used separately in other machines of this class or of other kindred classes, and I do not desire to limit my invention to any combination of the diferent improvements, except so far as the same shall be donc by the claims appended to this specification, wherein these different improvements are clearly pointed out and closely defined.

Referring to the drawings for the preferred construction, I mount upon a suitable frame A a second frame B, provided with suitable devices for holding the boards to be bored by means ofadjustable clamps adapted to engage with the edges of the board, which clamps carry feed-rollers geared to the driving mechanism to carry the boards lengthwise through the machine. The frame B is made to carry the board at an incline edgewise, and at one side ofthe lower edge of the board a third frame C is mounted, carrying horizontal chucks rotated through suitable gearing and adapted to receive bits to bore the holes at the required intervals in the edge of the board. This frame C is mounted upon the frame A, so as to travel back and forth longitudinally of said frame, and is speeded to correspond exactly with the motion of the boards through the machine. Said frame is also provided with means for advancing it toward and drawing it from the board and withareversing-gear so arranged that when the bits are advanced to the board the frame C shall travel in the same direction and at the same speed as said board, but that when said frame is withdrawn from the board its longitudinal motion shall be reversed and it returned to its original position. I prefer to provide this frame C with enough chucks so that a series of holes may be simultaneously made in the board, which shall take up a lengt-h upon said board equal to just twice the traverse of the chuck-supporting frame,so that the return of the gang of bits carried by said chucks, together with the advance of the board during this return motion, shall bring said bits into the proper position to bore a new series of vholes at the desired space from the last one of the former series. In this manner it will be seen that the machine is made both automatic and continnousin its operation, andthe boards being successively fed to the machine at one end will pass directly throughthe machine without stoppingand be delivered, properly bored, from the other side. IVhile this is my preferred construction, it is not absolutely necessary that all of these features should be present in my invention.

Describing the construction of my machine in detail,the driving-gear carried bythe frame A consists of a pulley a, Fig. l, fast upon a shaft a', carrying a miter-geara2 in mesh with a ruiter-gear a3, fast upon a shaft a4, (shown ICO in dotted lines in Fig. l and in full lines in Fig. 2,) which shaft bears a worm a5, (see Fig. 1,) by means of which the feed mechanism is driven through gearinghereinafter described. Said shaft a1 also bears a pulley a0, geared by means of a belt a7 to a roller as, which drives the boring mechanism. The feed mechanism and the mechanism for longitudinally reciprocating the bitearrying frame C are both driven by a shaft 19, Fig. 3, rotated by the worm a5 through a worm-gear 19. Said shaft carries a bevel-gear 192, Figs. 3 and 5, by means of which it drives the mechanism for reciprocating said fratne C, as hereinafter described. The shaft 19 also carries a gear 193, by means of which it drives the feed mechanism. This feed mechanism, which is carried by the frame B, is shown in the plan view of Fig. l, the end view of Fig. 3, and in detail in Figs. 4 and 5. Fig. 4 is a front View of the frame B in a vertical position and detached from the remainder of the machine. Fig. 5 is a broken section of the same frame cut in line 5 5 of Fig. 3, and showing in addition the gearwheels which impart the rotation to the shaft 19 to the feed mechanism and to the reciprocating frame C. The feed mechanism is driven by said shaft through the wheel 192, (shown in Fig. 3 and dotted in Fig. 5,) said wheel meshing with a gear 191, journaled to the frame B, which meshes in turn with a gear 195 to rotate a shaft 190, also journaled in the frame B. The shafts 19 and 196 extend through the frame B to carry in front thereof feed-rollers 197 198, adapted to engage with the lower edge of a board, and having circumferential grooves 190, Figs. l and 3, to receive the tongue upon the board. rlhe gear 194 also meshes with the gear 1910, loose upon a shaft 1911, carried by theframe B. Said shaft has pivoted uponit two oscillating frames 1912 1912, extending laterally in opposite directions, provided with means described below for raising and lowering them. Said frames carry shafts 1914 1915, rotated by gears 1910 1917, in mesh with the gear 1910, said shafts projecting in front of their respective frames, and there carrying a second set of feed-rollers 1918 1910, Figs. l and 4, having rims adapted to travel in the groove of the board, and preferably having serrated peripheries to avoid theirslipping upon the board. These feed-rollers are preferably of equal size, and the intermediate gearing between them and the feed-rollers 19S and 191 is adj usted toitnpart the same motion to all of the rollers. The rollers 19181919 are raised and lowered to receive different Vwidths of boards by means of a frame B', sliding vertically in guides upon the frame B, and adjusted by means of a rod 1920, Fig. 4, threaded therein and journaled in the frame B', which rod has a handle 1921, adapted to be grasped by the hand for turning. rlhe frame B carries arm 1922, pivoted thereto, and to the frames 1912 1912, by means of which, when it is raised or lowered, it carries the feed-rollers 1918 1910 with it, and adjusts the latter to any desired width of board. Said rollers do not move in 'rack to the other.

lby the adjacent parts of the frame.

exactlyvertical directions, as that would carry the gears 1910 1917 upon their drivingshafts out of mesh with the gear 1910,' but said rollers, being journaled in the oscillating frames 1912 1913, pivoted upon the same shaft as the gear 1910, move in ares whose centers are coincident with that of the gear 1910, and hence maintain the full mesh at all times with the latter. The frame B has a downwardly-projecting bracket 1922, carrying a guiding-roller 1921, which assists in keeping the board straight during its passage through the machine. The frame B has at the right (see Figs. l and 4) a bracket 1915, which also assists in supporting the board as it is fed to the rollers. The bevel-gear 192 meshes with another bevel-gear c, fast upon a shaft c', journaled in brackets a0 d10, (see Fig. 2,) and carries beyond the latter bracket a segment or broken gear c2, which engages alternately with racks c3 cL1 upon opposite sides of said segment and secured to a frame c5 to move said frame to the right in Fig. 2 while engaging with the rack c3 and to move the frame to the left when engaging with the rack c1. Said racks are provided at the ends which the segment first. engages when it passes from one to the other with projecting teeth e0 to give the teeth of the segment agreater bearing at the instant when the motion of the frame c5 is reversed. One or more of the teeth of each rack adjacent to these projecting teeth are made shorter than the remaining teeth to allow the teeth of the segment to pass over them in changing its engagement from one The segment is shown in its initial engagement with the rack c3 in Fig. 2, and the direction in which the segment rotates is indicated by an arrow thereon. From this position it carries the frame c5 to the right by means of its engagement with the rack c2, the rack c1 meanwhile passing beneath the toothless portion of the segment or broken gear. As soon as the teeth of thesegment have passed over the rack c3 they leave said rack and engage with the rack c4 to return the frame to the position shown in the drawings. A bracket c7 upon the frame c5 (see Figs. l and 2) extends upward and bears an arm e0, extending to the left in Fig. l., whichhas at its ends two rollers e0 C10, embracing between them the end of the frame C, so as to carry said frame back and forth longitudinally with the frame c5, but to allow it a lateral reciprocating motion independent thereof. The frame C slides freely over its supports and is guided by means of rollers 011, turning upon studs secured to the frame and projecting downward into cam-grooves 0.11, formed in the frameA or a plate attached thereto. In these cam-grooves there are placed oscillating dogs a12 an enlarged View of one of which is shown in Fig. 6, pivoted at (L12, having weighted ends @11, designed to raise the opposite ends @L15 as far as permitted The bottoms of the grooves L11 are cut away to IOO IIO

. allow the ends l of the dogs to rise into the extreme limit of its longitudinal movetion to commence boring.

ment toward the left and itsbackward lateral movement, at which time the bits carried by said frame are withdrawn from the board and the engagement of the segment c2 has just shifted, as seen in Fig. 2, to return the frame C to the opposite end of the traverse. As it moves from this position the rollers c11 enter the lower portions of the grooves 0.11 of Fig. l, slide over the inclined tops of the dogs @12, which are depressed against the weight 61,14 to allow said rollers to pass,'a11d thus reach the upper right-hand portions of the grooves. As soon as the rollers pass over the dogs L12 the weights L14 drop, raising the opposite ends of the dogs and blocking the return of the rollers through the lower portions of the grooves because of the abrupt edges w16. The upward curve at the ri ght-hand end of the grooves has already advanced the frame C laterally to bring the bits carried thereby up to the edge of the board in posi- The longitudinal i motion of the frame C is now reversed and the frame starts toward the left at the same speed at which the board is passing through the machine. The upward incline of the upper portions of the grooves 0.11 still further advances the frame C, crowding the bits into the boards as they pass along together until the opposite ends ofthe grooves are reached,when the downward incline of said ends of the grooves withdraws the frame and the bits carried thereby into the position shown in the drawings.

The boring-bits, Which are lettered D, Fig. l, are held in chucks d, threaded to the ends of the shafts CZ', which are journaled in the frame C and bear balance-wheels cl2 to prevent their rotation from being checked by any unusual obstruction encountered by the bits, and also pulleys d3, carrying belts d4, which pass by a quarter-turn to the roller as and transmit the motion of said roller to the shafts d. The roller as extends from end to end of the frame A, and as the frame C passes back and forth the belts d4 travel back and forth upon said roller. The shafts d are journaled directly in the frame C or in rigid attachments thereof at the ends opposite the chucks d; but said shafts are journaled at the ends adjacent to the bits D, so as to give the latter a slight vertical or lateral motion to lessen the liability of breaking them. The means by which this is done are illustrated in Fig. 7, which is a vertical section in line 7 7 of Fig. l. The shafts are here journaled in blocks d5, loosely fitted in the hole d6 in the frame C, so as to have a little play therein. A spring d7 holds these blocks in position. As the feedrollers 57 bs cover the edge of the board in which the hole is to be made, said rollers are cut away, as seen at to allow the bits to enter the boards at the lproper places.

I claim as new and desire to secure by Letters Patent- 1. In a feed device designed for boards 0r other articles of varying dimensions, the combination of a feed-roller adapted to engage one side or edge of the board mounted upon a shaft journaled in the frame of the machine and rotated by the driving-gear thereof, an oscillating frame pivoted to the frame of the machine and provided with means for holding it firmly in different positions, a gear-wheel rotated by the driving-gear about an axis coincident with the pivotof the oscillating frame, a second gear-wheel driven by the first and fast upon a shaft journaled in the oscillating frame, and a second feed-roller mounted upon the last-mentioned shaft and adapted to engage With the opposite side or edge of the board, substantially as described.

2. In a feeding device adjustable to different-sized timbers, the combination of a supporting-frame, a feed-roller mounted upon a shaft journaled in said frame and rotated by suitable driving mechanism, an oscillating frame and a connecting gear-wheel mounted upon the same axis, the latter being also rotated by the driving mechanism, a second feedroller mounted upon a shaft journaled in the oscillating frame and driven by the connecting-gear, and a frame adjustable upon the supporting-frame and engaging with the oscillating frame to carry thelatter with it in its adjustments, substantially as described.

3. In a feed device adjustable to differentsized timbers, the combination of a supporting-frame, a feed-roller fast upon a shaft journaled in the supporting-frame and rotated by driving-gear, an oscillating frame and a connecting gear-wheel, both journaled upon the same axis in the supporting-frame and the latter rotated by the driving-gear, a second feed-roller fast upon a shaftjournaled in the oscillating frame and driven by the connecting gear-wheel, an adjustable framesliding in guides in the supporting-frame, and an arm pivoted to the sliding frame and tc the swinging portion of the oscillating frame, substantially as described.

4. The combination of the frame B, the driven shaft h, geared to the Wheel i310 and carrying the roller 57, the frame i912, oscillating upon the axis of the wheel 510, the shaft Z214, carrying the roller Z118 and geared to the wheel IOO IIO

IZO

Z210, the frame B', rovided with means for ad- Iso to the tongue and groove of the board, respectively, and one of them rotated by suitable connections with the driving-gear, substantially as described.

7. In a feed device fora continuous-boring machine designed to bore nail-holes in tongueand-groove flooring, the combination, with a suitable frame provided With devices for operating the boring-bit, of two rollers fitted, respectively, to the tongue and groove of the boards, one of said rollers being provided with notches in its periphery to receive the boringbit, substantially as described.

8. In a boring-machine, a feed device adapted to present the timbers to the bits, a bitcarrying frame having suitable devices for carrying the bits with the timber while advancing them into the same and for withdrawing them and returning it to the proper position, a gang of bits mounted upon shafts journaled in said frame, pulleys fast upon said shafts, a roller rotated in suitable bearings by driving mechanism, and a series of belts geared to the pulleys and the roller and adapted to travel back and forth upon the latter, substantially as described.

9. In a boring-machine, the combination of a feed device adapted to present the timber to the bits at the required angle, a horizontally-sliding frame having suitable connections with the driving-gear for reciprocating it parallel to the timber and for giving it an independent lateral reciprocation toward and from said timber, and a series of bits carried by shafts journaled in the frame and rotated by the driving gear, substantially as described.

10. In a boring-machine, the combination of a feed device, a bit-carrying frame, a driving-gear adapted to move the timber and the frame in parallel lines at the same speed While the boring is done, mechanism for alternately advancing and withdrawing the frame from the timber, a reversing-gear adapted to move the framein the same direction as the timber while the bit is forced into the-same and return the frame to its first position when the bit is removed, a bit mounted upon a shaft journaled in the frame, and a pulley fast u pon said shaft and rotated by suitable connections with the driving-gear, substantially as described.

ll. In a boring-machine, the combination of a feed mechanism, a bit-carrying frame having suitable devices for forcing the bit into the timber and withdrawing it therefrom, and a bit mounted upon a shaft rotated by the driving-gear and journaled in the frame adjacent to the bit by means of a journal-block having a slight play in said frame, substantially as described.

l2. In a boring-machine, the combination of suitable mechanism for presenting the timber to be bored to a bit, a bit carrying frame having suitable devices for forcing the bit into the timber and withdrawingit therefrom, and a bit mounted upon a shaft rotated by the driving-gear and journaled in the frame adjacent to the bit by means of a block having a slight play therein against a spring force, substantially as described.

13. In a boring-machine, the combination of feed mechanism adapted to carry the timber in continuous motion through the inachine, a bit-carrying frame having suitable connections with the driving-gear for simultaneously moving it in the same direction at the same speed as the timber and advancing it toward the latter and also for withdrawing it therefrom and returning it to the first position, and abit mounted upon a shaft rotated by the driving-gear and journaled in the frame adjacent to the bit by means of a journal-block having a slight play in said frame against a spring force, substantially as described.

14. The combination of a feed device adapted to carry a timber in continuous motion and present it in proper position for boring, a bit-carrying frame having suitable connections With driving-gear for imparting reciprocating motion parallel to the timber and guided toward or from the timber by a projection running in a cam-slot, and a bit mounted upon ashaft journaled in the frame and rotated by the driving gear, substantially as described.

15. The combination, in a boring-machine, with suitable feed devices to carry a timber in continuous motion through the machine and present it in proper position for boring,

of a bit-carrying frame having a bit mounted on a shaft journaled therein and rotated by the driving-gear, conecting-gear between the frame and the driving-gear adapted to impart motion to the frame in the same direction and at the same speed as the timber while the boring is done, reversing gear adapted to return the frame after the boring is completed, and an endless cam-groove adapted to guide the frame toward and from the timber and having an` oscillating dog interposed therein, substantially as described.

SAMUEL A. GOULD.`

Witnesses:

H. BITNER, JAMES HOULEHAN.