US843936A

US843936A - Combination-tool.

Info

Publication number: US843936A
Application number: US33972206A
Authority: US
Inventors: Aaron Galperin
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-10-19
Filing date: 1906-10-19
Publication date: 1907-02-12
Anticipated expiration: 1924-02-12

Description

PATBNTED PEB. 12, 1907.

A. GALPERIN. COMBINATION TOOL.

APPLICATION FILED 0CT.19, 19,06.

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PATBNTBD PEB. 12

A. GAL'PERIN. COMBINATION TOOL. APPLICATION FILED 00T.19, 1906.

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A. GALPBRIN.

COMBINATION TOL. APPLIOATION FILED come, 190s.

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UNHCR@ STM@ AARCN GALPERIN, OF CHICAGO, ILLNOIS.

COhflBlNTlONHTOOLn Specieation of Letters Patent.

atented Feb. 12, 1907.

Application iiled October 19, 1906. Serial No. 339,722.

To all whom, t may concern:

Be it known that 1, AARON GALPnnrN, a subject of the Emperor of Russia, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful 1mrovement in Combination-Tools, of which the following is a speciiication.

T he object of my invention is to provide a novel construction oi combination-tool for facilitating the work, particularly of carpenters, joiners, and cabinet-makers, in making dowel-joints.

To this end proved ltool to 1 adapt one end of my im* bore the hole to receive a dowel-pin and to countersink the outer end ot the hole being bored and the other end to chamier the projecting end of a dowel-pin aiter it has been inserted in a hole provided to receive it in one board to facilitate the insertion at that end oi the pin into the hole provided to receive it in the other oi the two boards to be joined.

r1`he tool is intended to be worked like the common auger by connecting a bit employed in it with a suitable brace.

Referring to the accompanying drawings, Figure 1 is a view in side elevation of my improved combination-tool; Fig. 2, a similar view of the opposite side of the tool with a stop-bit secured in it, in inverted condition Vfor chamliering a dewelpin; Fig. 3, a view of the tool in end elevation; Fig. 4, a section taken at the line 4 on Fig. 3 viewed in the direction oi the arrow and showing a boring-bit adjustably secured in the tool; Fig. 5, a section taken at the line 5 on Fig. 4 and viewed in the direction of the arrow; Fig. 6, a section taken at the line 6 on Fig'. 4 and viewed in the direction of the arrow; Fig. 7, a plan view of adjustable means cooperating with the countersink-bit Afor pressing against the work being operated on, for gaging the degree oi penetration of the bit, and for preventing the splintering of the surface of the board being worked upon; Fig. 8, a section taken at the line S on Fig. 7 and viewed in the direction oi the arrow; Fig. 9, a view in side elevation of the tool, showing a modification of the means i'or holding the presser-foot in adjusted relation to the countersinlr-bit; Fig. 10, a view oi a detail of this modification; Fig. 11, a view in end elevation of the tool shown in Fig. 9, and Fig. 12 a top plan view oi the modified form oi presser-foot.

The rame or body of the tool is representthe tool being s hown l j ed at 9 and comprises side walls 10 11 and 'l

end walls

12 and 13. Mounted in the Jframe j between its walls is a vertically-disposed member 14, provided on its lower end with a j countersink-bit 15 and on its upper end with j a i'laring concave-convex cutter member 16. The upper extremity of the wall 12 is also pro vided with a rigid 'flaring concavoconvex i cutter member 17, similar to the member 16, and forming with the latter a sectional flaring chaniiering implement 1S, having cutting l edges 19 19 on its relatively adjustable secj tions.

j The member 14 is maintained in adjustable position in the trame by means of a setscrew 20, which extends through a threaded opening 21 in the frame-wall 13 and projects at its inner end, provided with a circumferential groove 22, into a recess 23 in the back of the member 14, in which it is held against withdrawal by oppositely-working screws 24 24, projecting at their inner ends into said groove7 to thereby permit the screw 2O to be rotated for moving the member 14 back and Jrorth. A screw 25 works in a threaded opening 26 in the trame-wall 12 and carries at its inner end a channeled head 27, tl-shaped in cross-section, which cooperates with the inner end oi a screw 23, likewise extending through a threaded opening 29 in the member 14, for reieasably clamping between them a boring-bit, as the bit 30, to extend beyond the i'rame vat its upper and lower ends and through the cliamiering-tool, the wall 13 of the iframe having an opening 13a, through which to insert a screw-driver 'for adjusting the screw 28.

j `Mounted in opposite sides of' the trame in j collars 31 32, respectively, are vertically-disposed. screws 33 34, held in adjustable position by means of milled nuts 35 36 upon them between the respective pairs Oi collars, said nuts t tl'ording means ior raising and lowering the respective screws relative to the i'rame. Small screws 37 37 are provided in one ot each pair of collars to project at their inner ends into longitudinal grooves 33 in the screws 33 34 tor preventing the turning oi" the l latter when the nuts 35 36 are rotated. r1`he screw 34 carries at its lower end a presseri toot 39, which is in the term of an annulus surrounding the boring end and countersinkbits, and comprises a 'flanged lower ring 40 i and an upper ring 41, seating upon it to form l between the two a ball-race 42 'for balls 43, l the rings being held against separation from lOO ITO

each other by screws 44, which extend through the ring and project at their inner ends into a circumferential groove in the ring 41 to permit the upper ring to be rotated on the balls 43 without rotating the lower ring. The screw 34 engages at its lower reduced end corresponding screwthreads in the ring 4l, whereby the latter is maintained in unvarying relation to said screw, thereby causing the upper ring 4.1 to be rotated during the operation of the tool, as hereinafter described. The screw 33 is adapted to iit at its reduced end into any one of an arc-shaped series of sockets 46, provided in the upper side of the ring 41, to adapt the presser-ring to be secured in any desired position of adjustment about its screw 34 relative to the countersink-bit for the purpose of permitting the shoulder hereinafter described in the presser-ring to be adjusted against the countersink-bit when the latter is adjusted laterally toward and away from the boring-bit. l he ring 41 is provided on its inner annular surface adjacent t0l the countersink -bit with a recess 47, forming a shoulder 48, with which in the adjustment of the tool the countersink-bit engages. l

For manipulating the screw 2O I provide on its squared outer end a removable handle 49, pre.'erably of the construction shown, comprising a bar having its opposite ends formed into a screw-driver and lil'e 5l, respectively, adapting the handle to be removed and used for turning the various screws described or for ling away burs formed on the surface of the wood during the cutting operations.

e operation of the tool is as follows: The screw 20 is turned by its handle 49 to separate the sections of the chamfering-head and clamping-

screws

25 and 28, and thereby permit the insertion through the chamferingtool and frame of the cutting end of a boringbit. The screw 20 is then adjusted to bring these sections and the

screws

25 and 28 toward each other and the countersink-bit into close relation to the boring-bit. The

screws

25 and 28 are then adjusted to center and rigidly clamp betwern their inner ends the shank of the boring-bit. The presserring is then adjusted upon the screw 34 to cause its shoulder to bear against the countersink-bit, in which position it is secured by lowering` the screw 33 te cause its reduced end to enter one of the sockets 46 registering' therewith. The upper squared end of the boring-bit is then clamped in a brace, (not shown,) and the tool is than ready to be used for boring and countersinking the dowel-pin, receiving hole in the board-as, for example, that shown at 52 in Fig. 2. lt is thus apparent that for the boring operation my iniproved tool assumes the position illustrated in Figs. 1.3. and 4, with the countersink- Il l l j l l 1 l l l l l j bit extending downwardly. The boring-bit in its rotation turns with it the entire tool, and as the boring-bit nears the limit of desired penetration into the board the countersink-bit engages the rim of the hole being bored, thereby beveling it as the boring-bit continues its boring operation, until the under surface of the presser-ring abuts against the upper surface of the board being worked upon, when further penetration of the boring and countersink bits, is arrested. The presser-ring serves not only to limit the degree of penetration of the bits, ias described, but also to prevent, in its presser action against the'board in which the hole is being made, any splintering of the boards surface.

dowel-pin`as, for example, the pin 53- may then be inserted in the hole 54 thus bored. The boring-bit may then be removed by turning the screw 20 to separate the clamping-

screws

25 and 28. The tool is thereupon inverted to cause the chamferingtool to extend downwardly, and a stop-bit 55 is inserted into the frame from, the top and between the clamping-

screws

25 and 28 to cause its lower end to project a slight distance into the ohamfering-tool, a scale 56 being provided on the shank of the bit 55 to cooperate with the bottom surface of the presser-ring, and thereby enable the operator to the extent of projection of the end of the bit into the chamfering-tool to cause the proper extent of chamfering of the dowel-pin to be performed. To chamfer or sharpen the pin 53, the cliamfering-tool is caused to rest at its inner tapering surface against the end of the dowel-pin, and as the bit 55 is rotated by means of a brace (not shown) the cutting edges of the chamfering-tool engage the edge of the dowel-pin and bevel its end until further downward movement of the tool is arrested by engagement with that end of the stop-bit 55.

rlhe screw 34, carrying the presser-ring, is adjustable up and down to permit of regulating the pre sser-ring relativo to the countersink-hit to vary the extent of penetration of the latter, and to facilitate the adjustment a scale 57 is provided on the frame to coperate with a pointer 58, carried on the upper end of the screw 34.

In Figs. 9 to l2, inclusive, which illustrate my improved tool equipped with another desirable construction of means for holding the presser-loot in adjusted position upon the supporting-screw 34 relative to the countersink-bit, the presser-foot instead of being' provided with an arc-shaped series of sockets 46 is equipped with a series of teeth 59, and the screw 33 instead of having a reduced end at which it seats within the sockets has its lower end longitudinally slotted, as shown in F ig. l1, and in this slot is pivoted a rocking plate 60, having a mutilated toothed segment 6l at one end for engagement with the lOO IIO

teeth 59 and at its opposite end an expanded head 62, against which the inner en of a set-screw 63 in the screw 33 bears to hold the plate in adjusted position on its pivot-bearing.

The operation oi adjusting the presser-foot relative to the countersinlr-bit is the same as that of the construction heretofore described, excepting that instead of raising the screw 33 to withdraw its reduced end from a socket 46 and again lowering it to eti'ect a new adjustment the plate is turned on its pivot7 thereby by reason of the engagement of its teeth with the teeth 59 turning the presserfoot on the screw'34 to its position of adjustment relative to the countersinl-bit,in which adjusted position it may be rigidly maintained by means of the set-screw 63.

What l claim as new, and desire to secure by Letters Patent, is-

1. In a combination-tool, the combination oi' a frame provided with means for adjustably and removably supporting upon it a boring-bit to project beyond the frame7 a countersinlr-bit projecting beyond an end of said frame to cooperate with such boringbit, a presser-foot adjustably supported at one side on said frame to adapt it to be raised and lowered relative to said frame, and turned on said frame, and provided with a shoulder at which said device is adapted to be engaged by said countersinlr-bit, and means for releasably securing said presserfoot in adjusted position, for the purpose set forth.

2, In a combination-tool, the combination of a trame provided with means for adjustably and removably supporting upon it a boring-bit to project beyond the trame, a eountersinlr-bit projecting beyond an end o said frame to cooperate with such boring-bit, a screw adjustably mounted on said trame, a presser-toot secured to said screw to be adjustable therewith, toward and away V'rom said trame, and comprising a lower ring and an upper ring on said lower ring and relatively movable therewith, and means for holding said rings against separation from each other, for the pur ose set forth.

3. in a combination-tool, the combination ot a trame provided with means tor adjustl j l ably and removably supporting upon it a boring-bit to project beyond the frame, a countersink-bit projecting beyond an end ot said frame to cooperate with said boring-bit, a screw adjustably secured on said trame, an annular presser-toot surrounding said bits and carried by said screw to be adjustable therewith, and comprising a lower ring and an upper ring provided with a series of sockets and secured to said screw and movable with relation to said lower ring, said upper ring being provided with a shoulder with which in trce adjustment oi' said presser-toot the countersink-bit engages, and a screw adjustably mounted on said trame and adapted to engage any one of said sockets, for the purpese set Aforth.

it. 1n a combination-tool for the purpose set forth, the combination with a trame, a countersinlr-bit on one side oi the frame, and a chamfering implement on the opposite side of said frame, said frame being adapted to be iitted to a boring-bit with which to cooperate with said countersink-bit7 ot astop-bit adapted to cooperate with said implement, and means en the trame constructed and arranged to adjustably and removably support the trame upon said latter to project beyond said countersinlr-bit tor boring and countersinking a hole and for similarly supporting said stop-bit upon the trame relative to said implement for regulating the extent of cham'fering.

5. In a combination-tool7 the combination of a trame provided justwith means for ad ably and removably supporting upon 1t a boring-bit to project beyond the frame, a

' member adjustably mounted in said trame, a

countersink-bit on said member projecting beyond an end of said trame to cooperate with said boring-bit, and means for adjusting said member and with it said countersinlr-bit relative to suoli boring-bit, comprising a screw working in the frame and connected with the said oountersink-bit-equipped member.

AARGN GALPERIN.

In presence of- J. H. LANDES, C. W. WASHBURNE.

boring-bit to cause the