US639604A - Boring-machine. - Google Patents

Description

No. 639,604. Patented Dec. I9, |899.

C. NIELSON.

BORING MACHINE.

(Application filed Aug. 6, 1898.\

3 Sheets-Sheet `(N0 Model.)

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351g n l lt/M3811@ No. 639.604. y Patented Dec.l I9, i899. C. NIELSON.

BORING MACHINE.

(Application led Aug. 6, 1898.) (N0 Model.) l' 3 Sheets-Sheet 2` TH: Nonms Pneus p9.. [email protected] wAsHlNnTnN. n, c.

No. 639,604. PatentedDec. I9, |899.

C. NIELSON.

BGRING MACHINE.

(Application med Aug. e, 1898.

(No Model.)

3 Sheets-Sheet 3.

@LW/anwaey Suva/whom' j Nrrnn STATES CHRISTEN NIELSON, OF NEV YORK, N. Y.

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SPECIFICATION forming part of Letters Patent No. 639,604, atea December 19, 189e.

Application tiled August 6, 1898.

To tZZ whom t may concern:

Be it known that I, CHRISTEN NInLsoN, a resident of New York, (Brooklym) county of Kings, and State of New York, have invented certain new and useful Improvements in Boring-Machines, of which the following is a full, clear, and exact specification, reference being had to the accompanying drawings, wherein Figure l is a plan and Fig. 2 a sectional view of a drilling-vise and gage combined made according to my invention. Fig. 3 is a plan view of such adjustable drilling-vise and gage combined; Fig. 4, a sectional view on line 4 4, indicated in Fig. 3. Fig. 5 is a front and Fig. 6 a side elevation of a vertical drill provided with my combined adjustable vise and gage. Fig. 7 is a sectional view of the automatic stopping device used in connection with my combined drilling-'vise and gage.

My invention relates to boring-machines5 and it consists of the' herein-described combined vise and gage devised for boring of frame of roller bearings for fifth-wheels and for similar work of this character wherein it is required that the borings be made exactly in the line of the diameter and either equidistantly from each other or in points marking equal or proportionate fractions of the circles. rxntifriction-rollers used in the construction of roller-bearings for fth-wheels are mounted between two concentric circular rails on spindles which must be exactly in the radial line of the rails in order to avoid strain and friction, which is detrimental to the working of the bearing. They must also be apportioned equidistantly from each other. Heretofore the boring of such rails was done separately for each rail, the holes having been previously marked thereon. The process is slow and tedious and the result of such work not satisfactory. The spindles of the rollers must it tightly into the holes. They must be exactly in the radial line; otherwise the rollers would not revolve and the bearings would not work. If theholes deviate from the exact radial line, the holes must be filed, and then, aside from the greater amount of labor involved, the bearings do not work satisfactorily and are speedily worn out, because the spindles do not sit firmly in such irregular holes, and consequently the rollers mount- Serial No. 687,954. (No model.)

ed thereon joggleand twist themselves in the channels of the bearing-plates.

My invention also obviates the otherwise prerequisite dividing and marking of the rails, and renders it possible to bore both rails at the same time in an exactly radial line. My combined vise and gage renders it also possible to bore a number of such holes simultaneously through both rails and of exact size as required for the spindles of the rollers, thus obviating all necessity of subsequent adjusting the holes by reaming or filing.

My non-adjustable vise and gage consists of a segmental block A, provided with a number of concentric grooves a a, b b', c c', the., arranged in pairs varying in depth, width, and the intervening distance between each two composing a pair, series of bores l 2 3, duc., the removable automatic stopping device B, and of means for aftixing the block to the platform of a drill. Grooves CZ cd, Z1', c c', the., represent parts of circles corresponding to the diameters of the rails, and the bores 1 2 3, the., follow radial lines of the circles. The widths of grooves a a', b o', rbc., correspond tothe thickness of the rails, and the sizes of bores l 2 3, the., are in all series the same as are also the sizes of the spindles to be set in the rails and the distances between the bores of each series are equal, representing equal divisional parts of the circumference of the outside circle of each corresponding pair of rails. The distances between the bores vary in each series, being dependent upon the number of rollers required for the various sizes. The divisions of all series are started from the com mon radial line x no, in which the bores of all series (and sizes) coincide. All bores are arranged on the same level; but the depths of the grooves a a, h b', c c', dto., vary correspondingly to the width of the rails for each size of bearings.

Screw-threaded holes z serve for removably aflixing to block A the automatic stopping device B in position corresponding to the division of the size of rails being bored. The stopping device consists of bow j, pin t', collar k, spiral spring m, fork n, and lever Z, fulcrumed therein. Pin i is snugly fitted into bores l 2 3, &c., and sufficiently long to IOO reach from the apex of bow beyond the outer groove ct of the last pair in the block. The pin is inserted in a bore provided in the apex of bow l7' and is provided with a number of transverse holes p', adapted to receive pin 19, which holes are as far apart as the several pairs of grooves ci cd, ZJ b', c c', &c., are arranged in the block. Inside of the bowj and between its apex and adjustable collar 7:; spring m is slid on the pin t', driving the pin inwardly. The stem of fork a is also snugly iitted in the bores l 2 3, dre., and thus the fork may readily be set in the bore nearest to that in which pin t' is inserted and its position as readily changed as that of the pin. Lever lis pivoted between the tines of the fork n, and its shorter forward arm is joined by links 0 to pin p, and thereby to pin By pressing upon the other end of lever Z, which is made in the shape of a handle, the pin is drawn outward against the action of the spring m.

The combined vise and gage can also be made adjustable for boring rails of various diameters and of varying thickness. The adjustable combined vise and gage shown in Figs. 3 and 4 consists of the base-plate D, provided with integral flanges D and D2 and with radial slots E, having their lower edges beveled to receive the heads of screws a, by means of which segmental strips t' and o are secured to the base-plate. Strips o are rectangular in crosssection, whereas strips `u are partly recessed, so as to form a groove when joined to strips fu. The width and depth of this recess corresponds to the width and thickness of the rails, and thus the width and depth of the grooves formed by joining strips o' to strips u may be varied. Flange D and also strips o and l'u' are provided with bores l 2 3, che., the flange with bores of all divisions, whereas strips o and t" are provided only with the bores corresponding to the divisions of the rails for which they are designated. Strips u and t" areexchangeable, and thus permit adjustment of the combined vise and gage not only for rails of varying diameters, but also for varying widths between the rails.

The functions of the implement will be most readily understood from the following explanation of its use: BlockA is secured to the platform of a drill-for instance, a vertical drill-in the manner shown in Figs. 5 and 6 by bolts q and in such position that line @c :r and the plane oi' bores l 2.3, die., are in alinelnent with the axis of the drill-spindle. The set or pair of rails to be drilled (t and t) are then inserted in the corresponding pair of grooves a a', b b, or c c', dsc., and then secured together `by clamps s, s, and s2. Then the drill is started, the drilling-tool entering the bore in line with line a; .fr and is driven successively through both the cuter and the inner rail. Stopping device B is then set on the edge of block A in line with the next following bore of the corresponding division, preferably to the left of the drillspindle, and pin 'i is adjusted to enter the bore sufficiently deep so as to cross the groove in which the outer rail t of the pair is inserted. rail will bar the pin t from crossing the groove; but after the first hole is drilled pin 'L' will slip into it when the rails are shifted, and thereby arrest the rails exactly in position in which the next following hole is to be drilled. All that the operator has todo, after once adjusting the combined vise and gage, is to press upon the handle of lever Z after each successive hole is bored, to withdraw pin t' from the outer rail and then shift the rails along the respective grooves a ct orb b', die., until the further motion is arrested by the pin t' dropping into the next following (or last-drilled) hole. The rails maybe secured in the grooves by clamps or other devices while the drilling is being done. It is, however, not necessary, because the rails are fully inclosed in the grooves, and owing to their curvilinear shape the very slight clearance between the rails and the walls of the grooves, and also owing to the circumstance At the start of-the boring operation the' that the two rails are clamped together and the outer one is being held in thebloek by the pin t', cannot be displaced accidentally.

Besides the advantages stated above the use of my combined gage and vise avoids all danger of bending the rails during the drilling and prevents' the forming of hurs around the holes.

l. A combined drilling-vise and gage comprising a block, series of grooves, representing segments of concentric circles, arranged in pairs, provided on the face of the block and series of radial bores running transversely through the strips bounding the grooves, and dividing the peripheries of the circles, represented by each pair of grooves in equal sections. j

2. A combined drilling-vise and gage comprising a fian ged base-plate, segmental strips secured to the base-plate and forming a series of grooves representing segments of concentric circles, arranged in pairs, means for securing the strips to the base-plate; vseries of radial bores, representing equal divisions of circles of various diameters, provided in the outer flange of the base-plate, and series of radial bores runnin gtransversely through the strips bounding the grooves and dividing the peripheries of the circles, represented by each pair of grooves in equal sections.

3. An automatic stopper comprising a bow, a bore in the apex of the bow, a stop-pin provided with a series of transversal holes, a crosspin set in one of the transversal holes beyond the bow movably set in the bore a collar adjustably secured to the pin within the bow, a spiral spring set on the pin between the collar and the apex. of the bow, a standard, a

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two-armed lever fulcrumed in the standard and means for exibly connecting one end of the lever to the stop-pin.

4. The combination with a combined drilling-vise and gage comprising a block, series of grooves, representing segments of concentric circles, arranged in pairs, provided on the face of the block and series of radial bores running transversely through the strips bounding the grooves and dividing the peripheries of the circles, represented by each pair of grooves in equal sections, of an automatic stopping device comprising a bow, a bore in the apex of the bow, a stop-pin provided with a series of transversal holes, a cross pin set in one of the transversal holes beyond the bow inovably set in the bore, a collar adjustably secured to the pin within the bow, a spiral spring set on the pin between the collar and the apex of the bow, a standard, a two-armed lever fulcrumed in the standard, links pivotally connected to one end of the lever and to the stop-pin, and means for securing the bow and the standard to the block.

In witness that I claim the improvements described in the foregoing specification I have signed my name in the presence of two subscribing witnesses.

CHRISTEN NIELSON. Witnesses:

HENRY SCHREITER, ROBERT VALENTINE MATHEws.

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