US1628680A - Multiple scoring machine - Google Patents

Description

1,628,680 N. E. NEWMAN MULTIPLE SCORNG MACHINE May 17 "11927.

IQ. E. FJEVVDAJ MULT1?LE SCORING MACHINE May 17 Filed Feb. lO', 1926 5 sheetsheet 2 INVENTOR NE'Y NakarzEMw/rmn May 17, 1927. '1,628,680

N. E. NEWMAN MULTIPLE SCORING MACHINE Filed Feb. lO, 1926 5 Sheets-Sheet 5 'HELE'.

I N VEN TUR Naim/z E', Nea/mara N. E. NEWMAN May 1v, 1921. 1,628,680

MULTIPLE SCORING MACHINE Filed Feb. 10, 1926 5 Sheets-Sheet 4 n] Mmmm,

INVEN TOR M/ZQHEZVQ/man/ y 17 N. E. NEWMAN MULTIPLE SCORING MACHINE Filed Feb.lO, 1926 5 Sheets-Sheet, 5

IN VEN TOR JVEz/zn/Z'Jfewmm A TTORNE Y Patented May 17, 1927.

UNITED STATES NATHAN E. NEWMAN, F IBBONXVILLE, NEW YORK.

MULTIPLE SCORING MACHINE.

Application led February 10, 1926. Serial No. 87,333.

My invention relates to amultiple scoring machine for use in connection with sheets or slabs of finished asbestos, wallboard, or the like.

Various experiments which I have conducted have proven conclusively that it is impossible to satisfactorily rovide intersecting recesses in asbestos s abs ,While the latter are in a lastic state, for the reason that when the s abs have emerged from the mold and are subjected to a drying ro'cess, the recesses which were imparted to t e mass during the molding operation contract and become noticeably irregular, so when two or more of the finished slabs are arran ed in juxtaposition, the recesses of the a jacent slabs will not register.

I have determined definitely that the forming of the recesses or scoring of the slabs must be accom lished when the stock is in a perfect dry, nished state, and even in this condition, extreme care must be exercised to overcome certain difficulties. In the first place, it must be borne in mind that an asbestos slab, when dry, is only relatively flat. As a matter otl fact, upon very close scrutiny, a slab will be found to have an undulatory surface, and sinceI propose to use a gang cutter for scoring the slab, and further, since I desire that the depth of the ,scoring should be Iuniform throughout the expanse of the stock, thisunevenness must be reckoned with. I also find it expedient to provide a stock support which will accommodate and permit of the stock being shifted from one position to another, whereby upon a single reciprocation of the travelling bed, the stock will be completely scored in crisscross fashion. It is also important that some provision be made for immediately disposing of the dust which results from the action of the gang cutter on the stock.

To the accomplishment of the recited objects and others coordinate therewith, the r preferred embodiment of my invention re-A sides in the construction and arrangement of parts hereinafter described, illustrated in the accompanying drawings, and embraced within the scope ot' the appended clams:

In said drawings: Figure l is a front elevation of the machine embodying my invention; and

Figure 2 is a Side elevation of the same; Figure 3 is a front elevation of three of the cutting units of the gang cut-ter removed, thelower extremity of one of the units being shown in section.

Figure 4 is a side elevation of one of the units and its appurtenances,` certain parts thereof being shown in section.

Figure 5 is a fragmentary view of the stock showing the manner in which it is scored;

Figure 6 shows detail views illustrating the manner in which the cutting unit is limited to its penetration with respect to the surface ot the stock, regardless of the unevenness oi' the surface of the stock; and

Figures 7 and 8 are detail views of the stock support, illustrating different positions in which the stock can be shifted.

From a generic standpoint, my invention comprises a base upon which is mounted aA 1n turn sustains a stock v travelling bed whic supporting frame having a recess therein, shaped somewhat like a Maltese Across. Above the said base is a superstructure com posed of vertically and horizontally arranged uprights and beams, and havin depending therefrom, a gang cutter. ach unit of the gang cutter is constructed of two telescoping yieldably connected elements, and in conjunction therewith there is a roller for regulating the depth of the scoring. Suitable mechanism for simultaneously operating thev travelling cutter derives its power froml a common source, and as the bed is moved forwardly, the stock, regardless of any unevenness which may be present on its surface, is scored from one edge to the opposite edge, with a multiplicity of parallel 'kerfs of uniform depth. Then the stock is removed from its support and turned around at right angles, and in this position, replaced in the appropriate portion of the recess in the stock support, whereupon, as the bed moves rearwardly, the stock will be scored with an equal number of kerfs lying at right angles to the first mentioned series of kerfs, and obviously having the same uniform depth throughout. operation, the cutter dust is drawn by suction through the free end of a spout, which is positioned in close proximity to the peripheries of the cutters.

Referring more particularly to the drawings, the numeral 1 designates a base, the

,85 bed and the gang During this scoring upper lon itudinal opposite edges of which are provi ed with V-shaped recesses 2. A bed 3 is disposed above said base, and on the 'bottom thereof, there are two complemental ribs 4, which engage the recesses otthe base, and thereby secure longitudinal movement of the bed thereon, without any likelihood of lateral displacement. Upon the bed rests a stock support 5, which is best shown in Figures 7, 8, of the drawings, and consists of a substantially rectangular frame with a recess 6, shaped somewhat like a Maltese cross, in one face thereof, and a plurality ot fastening devices 7. In Figure 7. the stock 8, is shown in one position, while in Figure 8, it is exhibited in another 'position at right angles to the tirst mentioned position,and in each instance, the said stock protrudes slightly above the s urt'ace ot' the support 5 (see Fig. 2.) p

A superstructure, consisting of uprights 9, and cross beams 10 and 11., occupies a po? sition above the base. Depending from beam 10 are a pair of brackets 12, the lower terminals ot' which serve as journals for a horizontally extending mandrel 12%, and hasl supports for the rod 14, 4which is disposed in parallelism with respect to said mandrel, and is further braced substantiallyv midway ot' its length by a pair ot' brackets 15. The gang cutter, denoted generally by the reference character 16, is supported almost entirely by the mandrel 13 and rod 14, and each unit thereof, (see particularly Figures 3 and 4 of the drawings) involves a pair of teleseoping elements 17 and 18, the former element having two sleeves, 19 and 2t), engaging respectively the mandrel 1i and rod 14, While the lower extremity of the element 18 is fashioned into a bearing 2l for the accommodation of the arbor 22. On one end otl the arbor 22, is secured a revolvable cutter 23, and on the other end, a pulley, as 24. is mounted. Depending from the bearing 21, is a relatively short extension 25, carrying a sleeve 26, which in turn supports a roller 27 in close proximity to the said cutter 223.

Between the upper side of the bearing 21 and the collar 28, which is adjustably mounted on element 17, is an expansibly coiled spring 29. Another pulley 3l) is tixed to the mandrel 13 and connected to the pulley 24 through the medium of a belt 31.

` To still further brace each unit of the gang cutter against displacement, I employ another bracket 32, which projects outwardly from beam 11, with its outer extremity 33 encircling and rigidly embracing the element 17. Another bracket 34, is secured to the beam l1 and extends downwardly at right angles to the said bracket 32, i'or the purpose of supporting the outer end ot spout 35, suitably connected to a suction fan, not shown.

Power is supplied to the machine from a common source, the bed 3 being operated by means of a rack 36, and pinion 37, connected to the bevelled gear 38, mounted on shaft 39, operatively connected to the sprocket wheel 40, over which the belt -l-1 is trained. A pair of pulleys 42 and 425 are arranged towards the top of the superstructure, and the said belt 41 connected with pulley 42, while belt 44 connects pulleys 42 and 43, and belt 45 is trained over pulley 46, mounted on the outer end of the mandrel 13, which is further supported by the depending bracket 47.

In operation, the stock S is positioned in the frame 5 and locked therein by latches T` as shown in Figure 7. lipon the. application of power, the bed with the frame 5, thereon, will move forwardly and simultaneously the gang cutter will score the stock from one end to the other at. points equidistant from each other, as .shown at l-. During this operation, the roller 27 will closely follow the cutter 23 of each unit and will insure an even depth ot each score or kertl despite the undulatory surface ot the stock, and the distance between the peripheries of the roller and revolvable cutter will always be maintained uniform, as shown in Figure (3 ot' the drawings. Upon the completion ot' the forward movement o1' the bed, the stock is removed, turned around and replaced so that it will occupy the position shown in Figure ta'. rlhen the operating mechanism (by means not shown) is reversed, and scores 48 are inti-:rsected by a multiplicity of similar scores Attl. During this entire operation, the dust which will manifestly result from the'aetion ot the cutters will be instantly removed by .suction through spout 35.

Vhat I claim is:

1. In a slab scoring machine, a travelling slab supporting element having in its supporting surface two recesses intersecting at. a right angle, and each adapted to serve. selectively, as a .seat tor accurately locatingr and presenting a slab or sheet ot material. whereby the slab may be presented .successively to the scoring instrumentality in right, angular-ly related positions.

2. In a slab scoring machine` a travelling slab supporting element having in its .supporting surface two recesses intersecting at a right angle, and each adapted to serve. selectively, as a seat for accurately locating`- and presenting a slab or .sheet ot' material whereby the blank may he presented successively to the scoring instrumentality in right angularly related positions. and slah holding means associated with each real adapted to engage the slab when in .said seats only at points spaced laterallysuhstantial distances from the longitudinal center of the supporting element whereby to engage the slab only adjacent its margins tit) llt)

which are disposed entirely at opposite sides ot' the longitudinal center of the supporting clement.

3. .ln an apparatus of the class described, the combination ot a base, a carriage designed to support a slab, a plurality of -positively driven scoring devices operating rotating on a horizontal axis and indcpeu.

dently yieldable vertically, means associated with each cutter adapted to engage the sheet to limit the depth ot' cutter penetration. and a. slab suppfiirting carriage movable past the cutters, said carriage being adapted to present the slab to the. cutters in right angularly related positions whereby to provide intersecting' scores.

In a slab scoring machine, a. pluralitv of positively driven scoring elements eaci rotatingl on a horizontal axis and independently yieldable vertically, means associated with each cutter adapted to engage the sheet to limit the depth ot cutter' penetration, and a slab supporting carriage movable past the cutters, said carriage having a supporting surface provided with two recesses interv secting at a right angle, and each adapted to serve, selectively, as a seat for accurately locating and presenting aslab or sheet of material to be scored, whereb 'the slab may be presented successively to t e scoring elements in right angularly related positions.

6. In a slab scoring machine, a pluralityr of positively driven scoring elements eaci rotating on a horizontal axis and independently yieldable vertically, means associated with each cutter adapted to engage the sheet to limit the depth of cutter penetration, a slab supporting carriage movable past the cutters, said carriage having a supporting surface provided with two recesses intersectingI at a right angle, and each adapted to serve, selectively, as a seat for accurately oc-ating and presentingr a slab 0i' sheet ot' material to be scored, whereby the slab may be presented successively to the scoring elcinents in right angularly related positions, and suction means adjacent eachseoring ele.- nient` adapted to withdraw the dust created b v the scoring action substantially iiniiicdiately following its formation.

7. In a slab scoring machine, a plurality ot positively driven scoring elements each rotating on a horizontal axis and independently yieldable vertically, means associated with each cutter ada )ted to engage the sheet to limit. the de 3th ot cutter penetration` and Ia slab supporting carriage movable past the cutters, said carriage having a supporting surface provided with two recesses intersecting at a right angle, and each adapted to serve, selectively, as a seat for accurately locating and presenting a slab or sheet of material to be scored, whereb the slab may be presented successively to tie scoring elements in right angularly related positions, and slab holding means associated with each seat adapted to engage the slab in said seats only at points spaced laterally substantial distances from the loligitudinal' center ot' the su )porting element whereby to engage. the slab only adjacent its margins which are disposed entirely at opposite sides of the longitlulinal. center of the supporting element..

S. ln a slab scoring machine, a horizontal' rod and a. driving mandrel, said rod and driving mandrel being arranged in paralleL ism, a plurality of vertically disposed cutter supporting arms carried by said rod and havin bearings through which said. shaft extents, said lcutter supporting arms being of telescol'iic formation, spring means press ing one ot' said telescoping sections of each ai-ni in a vertical direction, a cutter disk and an arbor therefor carried by the spring Dressed section of each of said arms, a pulley on each arbor, a plurality of pulleys on siiidl driving shaft between said arms, each having driving connections with an arbor pulley, the cutter disk section of each of said arms being vertically yieldable independently, means carried by each arm for engagin a slab of material to be scored and limiting the penetration of the cutter disk and a travelling carriage having a path of travel past said disks adapted to present a slab to be scored in right angularly related positions whereby to provide intersecting scores.

9. In a slab scoring machine, a horizontal rod anda driving mandrel, said rod and drivin-g mandrel being arranged in parallelism, a plurality of vertically disposed cutter supporting arms carried by said rod and extends, said cutter supporting arms being ot' telescopic formation, spring means pressing one of the telescoping sections ot each arin in a vertical direction, a cutter disk and an arbor therefor carried b the spring pressed section ol'- each of sait arms, a pul ley on each arbor, a plurality of pulleys on said driving shaft between said arms, each having `driving connections with an arbor pulley, the cutter disk sections of each arm being vertically yieldable independently of the other arms, means carried by each arm for engaging a slab of material to be scored and limiting the penetration of the cutter disk, and a traveling carriage having a path of travel past said disks adapted to presenta slab to be scored in right angularly related positions whereby Vto provide intersecting lll) havine' bearings through which said shaftv scores, and suction means adjacent said cutters for removing dust formed during the scoring operation substantially immediately upon its formation.

10. A gang cutter comprising supports, n rod carried b said supports, a mandrel mounted in saidy supports, ull'e s fixed to said mandrel, a pluralityo yie dnbly connected telescoping elements, each of said elements having' a air of sleeves, one of which .engages saidr` ro while the other freely encircles said mandrel, a revolvable circular cutter, a roller for limiting the de )th of penetration, a pulley connected to said cutter, connections between the first und last mentioned pulleys, and means for supplyinlgr power to said mandrel.

Signed at New York city, in the county of New York, State of New York, this 30th day of January, 1926.

NATHAN E. NEWlS IAN.

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