US2666382A - Parquetry design asphalt tile die - Google Patents

Description

Jan- 19,l 1954 H. `A. HAcHMElsTER PARQUETRY DESIGN ASPHALT TILE DIE 5 Sheets-Sheet l Filed Feb. l, 1951 e' mfg/am@ ATTD R N EYS `Ian. 19, 1954 H. A. HAc-:HMElsTER Filed Feb. l, 1951 s sheefssheet 2 457 Jl J0) T1 L25@ 6) aule@ efmi'e sill@ e LI|35-FL #n Mmzfmwlwrl ,w

a e' amww@ ATTD RN EYE Jan. 19, 1954 H. A. HAcHMElsTER l 2,666,382

PARQUETRY DESIGN ASPHALT TILE DIE A Filed Feb. l, 1951 5 Sheets-Sheet 3 ATTD RN EYS Patented Jan. 19, 1954 UNI TED STATES PAT E N T OF FIC E $566,382 PRQEIRY' fiiESi-GNASPHLT TILE DIE AHarry A. yHachmeister,v Pittsburgh.,` Pa. Appiatoieiifuary 1, 1951, 'Serial No.208,897

. l Y 'This invention relates tostamping dies or 'the type yhaving cutting er shearing 'aridr nier-*king Blades 'in combination with resilient ejecting means positioned ybetween the blades', and in pa-'rticular `a multiple ldie havinglo-wei shearing elements adjustably mounted "on the sides of blocks with Yupper shearing blades and design forming elements-carried "by upper shoe, 'positioned to coast `with 'tiie Vl'cwer cutting bars fanti hav-'ing bioessdf sponge rapper positioned "between ythe elements for ejectir'ig thefs'tamped-'eiemeiits from the dies.

The purpose 'of this invention -isto provide means for stamping' asphalt z"tile units from 'sheet material withl the units 'of' tile cut 'and 'impressed lith' designs simultaneously and with one operatin.

It-f'is diiiicult to cut asphalt v-tile with stamping diesof'the enclosedtype whereithefour'edges are cut simultaneously because the asphalt cii'ngs l:to the Vdies and lit is also diiiicult to "impress designs in vthe surface of asphalt unit-s "because Eit is "difficult to accurateiy position the units after Vtli'ey are-cut. With this -thought in inind fthis fini/enfd tio'nfcoiitemplates an'i'mprovem'ethod of" corporat'ing design impressingunits 'in-cciibmation with cutting knivesfaii-providingbroolss dfsponge rubber betweenthe cuttirigeiements andizripress ing units whereby the '-til'e units are :postiveiy ejected from the dies 'assoon as fth'e upper dies leave coactinglowerdies.

The object of this invention is, therefore, `vto provide means for mounting coacting dies in shoesf a punchp'ress wherebydesign'sare irn-` pres'sedin units and the units-are fcutfrom sheet materialwithone operation.v i

Another object fof fthe invention is `to provide means in an upper die rvfor cutting andrinipifessing designs inasphalt 'tile whereby the tiieiisfeiected from -the dies f as soon 1. as 4the dies separate.

fAnother object of the invention is -tofprovide means in an upper die havingcuttingfbladeson foursides with impressing die elementsbetween the blades :formoun'ting sponge -rubber--biocksbeg twe'entiie impressing die elements and'blades.

A 'further object Vor the invention is no provides' combination die for simultaneously impressing de sig'nsvin and cutting asphalt'tile from sheet ma* teriaiwhich 'is 'ofa vsiniplev and' e@chemical.cori-A struction.

With thse' and other obj ects -andadvantages in'view' the invention embodies aiowershoeihaving lower cutting bars ad-justably mounted in-.the sides` of kbloeksand `with. stripperel-ements i posi- 2 having upper cutting blades, design impressing' blades and sponge 'rubber Yblocks positioned be'- twleen the blades, mounted 4to register with cuttingbarsof the lower shoe.

Other lfeatures and vadvantages Aoi Ithe' invention Vwi-ll appear from -the following description taken in connection with the drawings wherein:

Figure '51 is a -view looking upwardly 'taken on line =i-| of `Figure 3 showing a plurality :of squares with Vdesign impressing blades positioned between 'fthe cutting knives and with vsponge 'rubber blocks positioned-betweenthe blades :and also between the blades and-cuttingkrii-ves.

Figure 2 -is a similar view looking downwardly taken -on line l2-2 of Figure 3 showing the lower cutting bars and stripper frame.

Figure 3 isa'iront elevational view showing the parts assembled and showing the upper shoe Kwith tilielupper fkn'ives thereon spaced vvfrom 4the lower cuttinglbars of thelowershoe.

Figure '4 Iis la detail-chan enlarged-scalev taken on line '4-4 of Figure 2 showing the positionvof the vdies at the end ofthe cutting stroke.

Figure f5 is asimilar view taken'onliiieE-lS-of Figure 2 showing the upperdies'inithe' upper positionwherein 4'the-dies 'are spaced Ifrom the lower diesv 'ffthe lower shoe'.

v Figure-"64s asimilar section rshowing the meeting edges of two of the dies and with the-knives oi fthe Vupper shoe `actuated through the 'cutting andinipressing operation. g

Figure 7 is a detail showing a section through the mounting of one "of vthe design impressing blades.

"FigureiSlis-adetail -showing partsfof the strip-- per frame with parts broken away.

YFigiire 9 isa cross section 'through-the stripper fiaineftakenfondinef9-9 o'iFigurelS.

Figure 10 is also :a vcross'section-throughthe stripper frame takenonline flat- |51 oi Figure.

'-Figur'e 'f1-'1 'lis aide'tailiillustratingy amodieation wherein afbackingblade islinserted between the designformingplate'or blade and a shoe for foi-'rn-` ing-tile Oia; ciinerentl thickness.

Referring now -to the fdrawings -wherein like 'reference characters denote corresponding parts thea'sphalt-tileistamping die ofithis inventionzin` chid'es :an `upper ish'oe it 'having fa plurality of squaresthereon 1vzithlupper:cuttingknives .Irl ipo- .sitionedaroundithe squares :and `with design im-V pressing Lblades V|`2 between the -saidikn'ives, and a ll'ower; shoe t3 having i lower cutting bars .i |24 r po-Z sitionediaround-the: 'edges of squares corresponding to the squares of the upper shoe-and having "a strippen frame including longitudinally `disposed bars l5, I6, l1 and cross bars i8 and l at the ends and also intermediate cross bars 2D, positioned around the lower cutting bars.

The lower shoe I3 is provided with extensions 2i and 22 and posts 23 and 24, positioned on the extensions extend through openings and 25 on similar extensions 2'! and 2s of the upper shoe. The extensions 21 and 28 of the upper shoe are provided with depending sleeves 29 and 3Q, respectively that provide guides for holding the upper shoe in position upon the posts.

The lower dies of the lower shoe are formed with a plurality of master blocks 3i that are secured to the shoes by cap screws 32 and the lower cutting bars Hi are secured to the blocks 3S by cap screws 33 that extend through slotted openings 34. The openings 34 are provided with countersunk outer ends 35 in which heads 3S of the cap screws .'33 are positioned.

Rubber stripper return strips 31 with concave surfaces 38 and 3S in the sides are positioned at the sides of and between the blocks 3l and the stripper frame, which is held against the strips 3'! by countersunk head screws iid. The screws 49 are threaded into the lower shoe i3 with lock nuts lil provided on the screws for retaining the screws in adjusted positions.

With the parts formed in this manner the lower cutting bars are positioned against the sides of the master blocks 3l with the cutting bars at the sides extended over the ends of the cutting bars on the ends of the blocks.

The stripper frame including extensions l5, il, i8 and l@ and also the intermediate strips is positioned on the upper ends of the rubber stripper return strips 3l and in the cutting action the strips move downwardly as shown in Figures 4 and 6.

The upper shoe Il] is provided with a plurality of master blocks 42 for the upper dies and the blocks 42, which are attached to the shoe by cap screws d3, are positioned directly above the master blocks 3l of the lower shoe. rlhe upper knives which are indicated by the numeral i i and which have elongated slots il therein are attached to the sides and ends of the blocks d2 by cap screws 45, heads i6 of which are positioned in counterbores :il around the outer ends of the openings M.

Strips for impressing lines or designs in the asphalt tile are also carried by the lower face of the block d2 and, as illustrated in Figures i and 5 the strips, or blades l2 having V-shape lower ends i9 are secured to bars iid by cap screws 5l and the bars 50 are secured to the block i2 by cap screws 52.

As illustrated in Figures 1 and 5 the blades l2 are equally spaced in the sections of the die and the blades at the center are separated by a sponge rubber block 53, the intermediate part of which is cemented to a plate 54 and the plate is secured to the under surface of the master block 52 by screws 55. The corners of the block 53 are provided with recesses 56 andv'l which provide clearance for the heads of the cap screws 5I.

The intermediate blades are separated by sponge rubber blocks 58 and 59, the upper surfaces of which are provided with recesses 643 and Si, respectively, and the inner surfaces 62 and t3, respectively are cemented to the under sur-u iaces of the mounting bars 5b. The outer edges of these blocks are also provided with recesses 6d and E5 to provide clearance for the heads of the cap screws 5 l.

The intermediate blades are also separated from the cutting knives Ii by blocks 56 and 5l, the upper surfaces of which are provided with recesses it and 69, respectively which receive the mounting bars 'through which the blocks are cemented.

The block 56 is provided with corner pads lil and 'il and the block Si is provided with similar corner pads 'l2 and 'i3 which extend beyond the outer surfaces of the blocks at and El to insure forcing the tiles fromthe upper dies.

As illustrated in Figure 5, each of the mounting bars 5&3 is provided with two dowel pins M that extend into openings 'i5 in the master block i2 for locating the bars. These pins are located in different positions on each bar and with the bars numbered accordingly the bars will be returned to the correct position.

The bars of the stripper section are formed of two strips of material and the strips are secured together by rivets 1s, the ends of which are peaned over, as illustrated in Figures 9 and 10 so that the upper and lower surfaces of the bars are smooth. The intermediate bars are provided with bevel edges, as indicated by the numeral l?. The inner edges of the end bars Il are also beveled, as indicated at the point i8.

In the design illustrated in Figure 11 a backing sheet 'is is positioned between the mounting bars 5U and the upper shoe i@ and with this shoe positioned between the lower edges of the blades A8 and the master block 3l and the thickness 0f the backing shoe corresponds with the thickness of the tile being formed with the dies.

With the parts formed in this manner a sheet of material, as indicated by the numeral 8i), is fed across the lower shoe and with downward movement of the upper shoe the squares are stamped from the sheet with the lower V-shaped edges of the blades d3 impressing lines in the surface of the sheet.

It will be understood that with impressing elements formed in different patterns or different shapes, diiferent designs may be impressed into the surface of the asphalt tile and with the parts arranged in this manner designs are impressed simultaneously with the cutting action, and as the upper shoe carries the upper dies upwardly the sponge rubber strips the nished sections from the dies whereby these sections, with the remaining material from which the sections are stamped, are removed from the dies and a new sheet positioned therein. f

With the lower cutting blades and upper cutting knives provided with vertically elongated slots in which the mounting cap screws are positioned the die members or cutting elements are vertically adjustable on the master block and wear developing in the cutting edges may be compensated for. Furthermore with the blades i8 independently mounted on the mounting bar 5t, thesey blades may be independently removed, sharpened and replaced.

It will be understood that modifications may be made in the design and arrangement of the parts without departing from the spirit of the invention.Y

What is claimed is:

In a tile making die, an upper shoe having a plurality of squares thereon, cutting knives positioned around the squares, design impressing blades arranged between said knives and having Vshaped lower ends, a lower shoe having squares thereon and provided with cutting bars positioned around the edges of the squares, a stripper frame ,on said lower shoe including longitudinally extending bars, cross bars extending between said longitudinally extending bars and secured thereto, extensions on said upper and lower shoes provided With openings, posts extending through said openings, sleeves depending from the extensions on said upper shoe providing guides for said posts, master blocks secured to said lower shoe, said cutting bars being provided with a plurality of slots terminating in countersunk outer ends, cap screws extending through said slots and having heads positioned in said countersunk outer ends, resilient return strips having concave surfaces positioned between said blocks, a, plurality of master blocks secured to said upper shoe and positioned directly above the blocks in said lower shoe, a plate secured to the undersurface of the master blocks on the upper shoe, sponge rubber blocks secured to said plate. and corner pads secured to the ends of certain of said sponge rubber blocks.

HARRY A. HACHMEISTER.

References Cited in the le of this patent UNITED STATES PATENTS Number Name Date 788,217 Mohr Apr. 25, 1905 828,226 Lorenz Aug. 7, 1906 1,082,985 Wilder Dec. 30, 1913 1,670,898 Messmer May 22, 1928 2,160,427 Bowie May 30, 1939 2,278,542 Freeman Apr. 7, 1942 2,313,801 Carll Mar. 16, 1943 2,364,835 Whistler et al Dec. 12, 1944 2,552,353 Troth May l8, 1951

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