US856842A - Segment-mitering machine. - Google Patents

Description

PATENTED JUNE 11, 1907.

H. J. BUGKBL. SEGMENT MITERING MACHINE.

APPLICATION FILED PEB. 14. 1907.

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PATENTED JUNE 11, 1907.

H. J. BUCKBL. SEGMENT MITERING MACHINE.

APPLIGATION FILED PEB. 14. 1907` mums-SHEET 2.

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No. 856,842. PATENTED JUNE 1l, 1907. H. J. BUCKEL. SEGMENT MITERING MACHINE.

APPLICATION FILED FEB-14.1907.

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PATENTED JUNE 11.71907.

' H. J. BUGKBL. SEGMENT MITBRING MACHINE.

APPLICATION FILED PEB,14.1907,

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vention is better understood, the same con- -will be hereinafter chine, Fig 6 UNITED STATES PATENT OEEICE IAIENRY J BUCKEL, OF MISI-IAVAKA, INDIANA.

SEGMENT-MITERING MACHINE.

Application tiled Peb'lmly 14,

Be it known that I, HENRY J. BUCKEL, a citizen of the United States, residing at Mishawaka, in the county of St. Joseph and State of Indiana, have invented new and useful Improvements in Segment-Mitering I/lachines, of which the following is a specification.

This invention relates to wood working machines of that class which are employed for mitering the ends of segments, to be used in the construction of rims of wheels, and for other purposes.

The invention has for its objects to construct a machine of the class referred to which may be used for operating upon segments of various sizes, and which may be readily set or adjusted to eut the mitering ends of the segments at various angles.

A further object of the invention is to construct a machine of this class, the capacity for work of which shall be practically unlimited except by the speed at which it may be driven Further objects of the invention are to simplify andl improve the construction and operation of this class of machines.

lith these and other ends in view which will readily appear as the nature of the insists in the improved construction and novel arrangement and combination of parts which fully described and particularly pointed out in the claims;

In the accompanying drawings has been illustrated a simple and preferred form of the invention; it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and modifications within the scope of the invention may be resorted to when desired.

In the drawings, Figure 1 is a side elevation of a machine constructed in accordance with the principles of the invention. Fig. 2 is a side elevation of the machine seen vfrom the opposite side.' Eig. 3 is a transverse sectional view taken on the plane indicated by the line 3-3 in Fig. 1. Fig. el is a sectional detail view on a somewhat longer scale taken substantially on the plane indicated by the line #4 in Fig. 1. Fig. 5 is a detail view, inelev,ation,. of the connecting rods or shafts extending longitudinally through the mais a perspective detail view Specification of Letters Patent.

Patented June 11, 1907.

1907. serrano. 357,302.

showing one of the links of the endless feed chain.

Corresponding parts in the several figures are denoted by like characters of reference.

The machine includes a main or principal frame A which is stationary, and a movable or adjustable frame B. The main frame is provided with bearings for transversely disposed rock shafts 1 and 2 having bell-cranks 343 connected by a link or connecting rod L whereby motion is transmitted between the rock shafts so that the latter will rock in unison. The rock shafts 1 and 2 are provided with radially extending arms 5 that are pivotally connected with brackets 6, which latter form parts of thc frame struc ture B. The latter', as will be seen, is thus supported by the rock shaft-s l and 2, in such a manner that vertical adjustment of the entire frame structure B may be effected by oscillating the rock shafts in their bearings. The rock shafts 1 and 2 are provided with arms 7 carrying weights S whereby the vframe structure B and its related parts will be counterpoised so that vertical adjustment thereof may be effected without strenuous exertion on the part of the operator, the adjustment being e'll'ectcd by means of a handlever 9 connected with the rock shaft 1 which is located at the front end or feed end of the frame of the machine where the attendant is stationed when the machine is in operation. For the purpose of securing the frame structure B at the desired adjustment, the handlever 9 is provided with a stud 1() guided in a segmental slot 11 in a bracket 12 equipped with a tail nut 13 which may be tightened against said bracket. A suitable gage or indicator 14 is also provided which in practice will be inscribed with a scale that serves to indicate to the-operator the precise point of adjustment of the frame B.

The main shaft 15 for driving the machine is supported for rotation in brackets 16 upon the rear end of the main frame A, said shaft beingl driven from any suitable source of power, in any suitable and convenient manner; for instance, by a belt engaging a band wheel 17 upon said shaft. The frame A is provided with bearings :for a countershaft 18 having a band wheel 1) which is connected by a belt 20 with the main shaft 15 from which motion, at reduced speed., will thus be transmitted to the countersha'ft. The band wheel 19 is loosely mounted upon the coun- IOO ings, said links being tershaft 18, but may be connected with the latter, so as to revolve therewith, by means of a clutch 22 of ordinary construction, said clutch being operable by means of a shipping lever 23 fulcrumed upon the main frame at 24 and extending to the front end of the machine within convenient reach of the operator.

The countershaft 18 is provided with links or radius bars 25 supporting a floating shaft 26 carrying a spur wheel 27 meshing with a pinion 28 upon the countershaft from which motion will thus be transmitted, at reduced speed, to the floating shaft 26 in any position occupied by the latter. The floating shaft 26 is connected by means of'links 29 with a shaft 30 j ournaled in suitable bearings upon the vertically adjustable frame B, and the shafts 26 and 30 are provided with sprocket Wheels 3l' and 32 connected by a link belt 33 whereby motion will be transmitted as will be readily understood.

The shaft 30 is located near the rear end of the frame B, and a corresponding shaft 34 is supported in suitable bearings near the front end of said frame. Said frame is also provided near its front and rear ends with depending brackets 35 and 36 affording bearings for shafts 37 and 38. The shafts 30, 34, 37 and 38 carry sprockets 39 over which is guided an endless flexible element consisting of a chain 40 which constitutes the feed device of the machine. The chain 40 is provided at intervals with specially `constr-ucted links 4l, shown in detail in Fig. l of the drawprovided with transverse flanges 42 upon which cross pieces 43 are bolted or otherwise secured 5 said cross pieces serving to engage the segments that are to be operated upon for the purpose of pushing or feeding the same past the :saws whereby the ends of said segments. are trimmed or cut at the re uisite angle, as will be hereinafter more fully described. The edges of the links are beveled or dove-tailed as will be seen at 44, and a correspondingly beveled or dove-tailed guide-way 45, .best seen in Fig. 4 of the drawings, is formed in the bed of the frame B for the purpose `0f guiding said links.

The frame B is provided near its fron-t and rear ends, respectively, with transverse dovetailed grooves 46 and 47 in each of which is guided a pair of oppositely movable slides thus designated respectively 48, 48a and 49, 49a. In suitable bearings beneath the transverse grooves 46 and 47 are j ournaled transf verse shafts 50 and 5l, each provided with oppositely threaded portions engaging nuts 52 that are fitted in recesses 53 in the several slides. The transverse shafts 50 and-51 are provided with bevel pinions 54 meshing with corresponding bevel pinions 55 upon la longitudinally disposed transmission shaft 56 whereby motion is transmitted between the shafts 50 and.51, the former of said shafts is provided withI a hand Wheel 57 whereby it may be conveniently manipulated for the purpose of eecting simultaneous adjustment of the slides 48, 48a and 49, 49a.

Each of the slides 48, 48a and 49, 49a carries a vertically movable rod or member 58 having at its lower end an anti-friction member such as a wheel 0r caster 59. cally movable members 58 are provided with heads 60 that are connected in pairs by means of longitudinally disposed rods which I call the track bars 61 these track bars are for the purpose of sup orting the segments that are to be operatedpupon while they are being conveyed from one end of the machine to the other by means of the feed chain. The head 60 upon one of the vertically movable members 58 at one side of the machine also supports an upstanding flange constituting a gage plate 62, clearly seen in Figs. 2 and 4 of the drawings.

The vertically movable members 58 are supported upon a guide by adjusting levers 63 which are fulcrumed, in pairs, adjacent to the transverse shafts 50 and 5l, said levers being provided with short arms 64 extending inwardly in the direction of the longitudinal 'center of the machine, and carrying antifriction rollers 65 that are in engagement with c-ams 66 mounted upon the longitudinal shaft .67, by the partial rotation of which the levers 63 will be rocked upon their fulcra, thus raising .or lowering the vertically movable members 58, and the bars yconnected therewith g it being understood that the movement of the levers and the vertically movable members is simultaneous .and uniform. The shaft 67 carries pinions 68 meshing with similar pinions 69 upon a longitudinal shaft 70 connected by miter gearing 71 with a transverse shaft 72, the `latter carrying at one end a hand-lever .73 whereby it may be conveniently manipulated to effect the desired adjustment of the levers 63 the vertically movable members 58 and related Aarts.

p It will be seen from the foregoing description .that by simply `manipulating the shaft 50 by means of the hand-lever 57, the slides carrying the vertically movable members :58 may be transversely adjusted, said slides 'moving in pairs, in opposite directions, thus adjusting the track bars 6l at various distances apart; when this .adjustment is being effected, the vertically movable members 58 will travel along the up er surfaces :of the -adjusting levers 63, whic-a-re usually in oppositely inclined positions `at the two sidesof the machine; by reason of this fact, it ebvious that transverse adjustment of the ltrack bars will at the same time Vresult in .a vertical adjustment of said bars but independent vertical adjustment ofthe track bars may be effected, when desired, by manipula- The vertil IOO IIS

tion of the shaft 72 having the hand-wheel 73 whereby, through the intermediate mechanism provided for the purpose, the adjusting levers 63 will be rocked upon their respective fulcrums, thus raising or lowering the vertically movable members 5S, and consequently effecting vertical adjustment of the track bars. It is considered to be within the scope ofthe invention to provide conveniently located gages or scales whereby the exact adjustment of the parts will be visually ndicated to the operator, who will thus be enabled to set or adjust the parts with the utmost nicety according to the work that is to be performed.

The trimming or mitering of the ends of the segments is effected by means of a pair of circular saws 74 mounted upon arbors or mandrels 75 which are supported adjustably in oppositely inclined positions at the sides of the machine. The lower, inner ends of the mandrels 75 are journaled in bearings 76 hingedly supported upon the frame B; the outer, upper ends of the mandrels 75 are journaled in sleeves 77 pivotally supported by means of trunnions 78 in forks 79 at the upper ends of vertically adjustable rods SO that are guided in suitable bearings 81 upon the frame A. The rods S0 are provided with racks 82 engaged by spur wheels S3 upon a shaft 84 journaled transversely in the Vframe A, said shaft being connected by miter gearing 85 with a vertically disposed shaft 86 which inv turn is connected by miter gearing S7 with a longitudinally disposed shaft S8 havng at one end a hand wheel S9 whereby it may be conveniently manipulated to effe-ct the desired vertical adjustment of the forked rods S0 whereby the bearings for the outer ends of the saw carrying mandrels are supported. The shaft S4 carries a grooved pulley or drum to which is attached one end of a fiexible element such as a cord or cable 91 which, after being wound upon the drum or pulley, is guided over a suitable guide member such as a pulley 92, said flexible element carrying at its free end a weight 93 whereby the saw carrying mandrels are counterpoised so as to facilitate their adjustment by the operator.

It is obvious that within the scope of the invention ordinary well known means may be provided for the purpose of locking the shaft 88 at various adjustments in order to prevent accidental displacement of the saws; it is also obvious that a scale or indicator may be employed for the purpose of visually indicating to the operator the exact pitch or angle to which the saws have been adjusted.

T he saw mandrels are provided with pulleys or band wheels 94: which are connected by belts or bands 95 with driving pulleys or band Wheels 96 upon the main shaft 15 from which motion will thus be transmitted directly to the saw mandrels; for the purpose of imparting to the belts 95 the requisite twist, to prevent them from slipping from the mandrel pulleys, said belts are guided in contact with cone pulleys 97 idly supported upon a shaft 9S.

lhc vertically adjustable frame B is provided at suitable distances from its front and rear ends with pairs of uprights 99 which are connected, in pairs, by cross-bars 100. The cross-bars are provided with bearings wherein are journaled swivel nuts 101 provided with sprocket wheels 102 which are connected by a link belt 103 whereby said nuts may be rotated in unison; said nuts are also provided with hand wheels 104 whereby they may be conveniently manipulated, for the purpose of effecting simultaneous and uniform vertical adjustment of threaded rods 105 that extend through the nuts. Said threaded rods carry at their lower ends a socalled brush 106 consisting` of a back 107 equipped with a plurality of downward projecting flexible resilient tongues 10S, the lower extremities of which will thus be adjustably supported a suitable distance above and intermediate of the longitudinally disposed track bars 61.

From the foregoing description taken in connection with the drawings hereto annexed the operation and advantages of this invention will be readily understood to those skilled in the art to which it pertains.

The previously prepared segments or blanks that are to be operated upon, and which in the drawing are designated by the letter S, are placed upon the track bars 61 at the feed end of the machine, where they may be deposited in stacks or bunches, it being only necessary to take care that they are properly placed in contact with the upstanding flange or guide plate 62. It is also obvious that the adjustable parts of the machine, namely, the track bars 61, the saws 74, and the brush 106 must have been previously properly adjusted according to the work that is to be performed. rl`he saws having been set in motion, the feed mechanism is then started by o )erating the shipping lever 23 to throw the cutch member '22 into engagement with the pulley or band wheel 19 so as to lock the latter upon the countershaft 22 3 the endless feed chain 40 being thus set in motion, the links of said chain having the cross pieces if3 will engage the blanks or segments and carry the latter along the track bars 61, beneath the brush and past the saws 74, which latter will trim or cut the ends of the segments at the proper angle, the segments or blanks being meanwhile held in position upon the track bars, with sufficient security, by the flexible resilient tongues of the brush member, the latter may be of any desired length, and may serve to hold the segments in position upon the track bars until they are discharged over the ends of the IOO IIO

latter at the rear or tail end ofthe machine.

The saws 74 may, when desired, be adjusted upon the shafts or mandrels, longitudinally of the axes of the latter, in order to enable segments or blanks of various lengths to be operated upon, lt Will be noticed that blanks or segments, greatly varying in length, may be efficiently operated. upon by this machine owing to the fact that the track bars Which constitute the bed over Which the segments are guided are adjustable toward and away from each other, thus enabling them to be so adjusted as to support the blanks or segments near the ends of the latter Where they are subjected to the strain E of the saws; the material that is to be operated upon Will thus be very firmly and securely supported under all circumstances.

When the track bars are moved apart from each other, for the purpose of supporting blanks or segments of considerable length, the inner ends of the saw carrying mandrels will be simultaneously moved in an upward direction, and the saWs Will thus be moved upwardly-together with the track bars so as to occupy approximately the same relative position to the track bars Which is obviously desirable in order to enable the mitering to be performed at all circumstance Without eX- posing a considerable portion of the saws to frictional contact With the ends of the material that is being cut.

The general construction of the machine is simple, and the component parts are so arranged and assembled as to be under convenient control of the operator.

Having thus fully described the invention, Whatl claim is l. ln a machine of the class described, a stationary frame, a vertically adjustable frame, saw carrying mandrels each supported in pivoted bearings upon the stationary and adjustable frames respectively, and Work supporting members and an endless feed element carried by the adjustable frame.

2. ln a machine of the class described, a stationary frame, a vertically adjustable frame, saw carrying mandrels each supported in pivoted; bearings upon the sta-.-

tionary and movable frames respectively, track bars supported longitudinally upon the vertically adjustable frame, and an endless feed element carried by the latter frame.

3. ln a machine of the class described, a stationary frame, a vertically adjustable frame, saW carrying mandrels each supported in pivoted bearings upon the stationary and adjustable frames, respectively, laterally adjust-able track bars supported upon the vertically movable frame, and an endless feed element carried by the latter frame.

4. ln a machine of the class described, a

essere stationary frame, a vertically movable frame, saW carrying mandrels each supported in pivoted bearings upon the stationary and movable frames respectively, vertically adjustable track bars supported upon the movable frame and an endless feed element carried by the latter frame.

5. ln a machine of the class described, a stationary frame, a vertically. movable frame, saW carrying mandrels each supported in pivoted bearings upon the stationary and movableframes respectively, laterally and vertically adjustable track bars supported upon the movable frame, and an endless feed element carried by the latter frame, intermediate the track bars. i

6. ln a machine of the class described, a stationary frame, a vertically movable frame, saW carrying mandrels each supported in pivoted bearings upon the stationary and movable frames respectively, laterally adjustable' slides supported upon the movable frame, vertically movable members guided through the slides, longitudinally disposed track bars connected With the vertically movable members, and an endless feed element carried by the movableframe.

7. ln a machine of the class described, a stationary frame, a vertically movable frame, saW carrying mandrels each supported in pivoted bearings upon the stationary and movable frames respectively, laterally movable slides guided upon the movable frame, vertically movable members guided through the slides, longitudinally disposed track bars carried by the vertically movable members, a feed element carried by the movable frame and a brush member carried by said frame, suspended adjustably above the feed element.

S. ln a machine of the class described, a stationary frame having transverse rock shafts provided With bell-cranks, a link connecting said cranks, arms radiating from the rock shafts, a vertically movable frame connected pivotally with said arms and counter- Weighted arms extending from the rock shafts, laterally and vertically adjustable track bars supported by the adjustable frame, an endless feed element carried by the latter, a driven shaft supported by the stationary frame, means for transmitting motion from said driven shaft to the feed element, saw carrying mandrels each supported in pivoted bearings upon the stationary and adjustable frames respectively, and means for transmitting motion from the driven shaft to the saw carrying mandrels.

9. In a machine of the class described, a stationary frame, a vertically adjustable frame, track bars supported adjustably by the adjustable frame, an endless feed element carried by the latter Haine, said feed element including links having beveled edges and upstanding transverse anges, means IIO ISO

upon the adjustable 'frame for guiding the beveled edged links of the feed element, and saw carrying mandrels each supported in pivoted bearings upon the stationary and adjustable frames, respectively.

l0. In a machine of the class described, a stationary frame, a vertically adjustable frame, longitudinally disposed track bars supported adjustably upon the adjustable frame, a brush member supported adjustably above the track bars and having down- Ward extending resilient flexible tongues, an

endless feed element operating between the track bars, adjustably supported saw carrying inandrels having saws disposed adjacent to the track bars, and bearings for the inner ends of said inandrels connected hingedly with the vertically adjustable frame.

In testimony whereof, I a'l'lix iny signature in presence of two Witnesses. d

HENRY J. BUCKEL. Vitnesses J. A. MoMIonAEL, JOHN C. DrsTLnR.

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