US1496960A - Embossing machine - Google Patents

Description

June. 10 1924.,

HQ wELscH EMBossING MACHINE Filed Feb. 2,' 1922 4 sheets-sheet i June 10, 1924. 1,496,960

- H. WELSCH EMBOSSING MACHINE Julie 10 1924.' l

H. WELSCH EMBOSSING MACHINE l Filed Feb. 2, 1922 4 Sheets-Sheet .'5

Fatented d une l0, 1924.

HENRY VJELSCH,

OF EL PASO, TEXAS.

EMBOSSINGrv MACHINE.

Application filed February 2, 1922. Serial No. 533,598A

To all whom t may concern.' p

Be it known that I, HENRY VELSCH, a citizen of the United States, residing at El Paso, in the county of El Paso and State of Texas, have invented new and useful lmprovements in Embossing Machines, of which the following' is ayspecification.

This invention relates/ to embossing machines, and is adapted particularly for use in machines of that character wherein it is required to provide raised or embossed letters, figures or designs upon metallic plates.

The primary object of the invention is to provide an embossing machine of the character stated wherein improved driving mechanism for the embossing rolls or points is employed, and wherein the speed of movement of these rolls is accurately timed during the embossing operation.

A further object of the invention is to provide a machine of the character stated embodying means of an limproved nature for adjusting and accurately controlling the embossing rolls.

A still further object of the invention resides in an improved mounting for the shafts carrying the embossing rolls, Whereby the adjustment of such shafts, both longitudinally and angularly, may be minutely carried out.

A still further object of the invention is to provide an embossing machine of comparatively simple construction, which involves but few simple and readily assembled parts, the said parts being so constructed and arranged as to minimize the opportunity for wear or breakage, which permits of a wide range of adjustment of the embossing points or rolls, which may be readily adapted to metallic plates varying in thickness, which involves novel means for maintaining the same rigid at all times, and which will prove thoroughly practical and efficient in use.

With these and other objects in View, the invention consists of the features of construction, combination and arrangement of parts, hereinafter fully described and claimed, reference being had to the accom panying drawings, in which j Figure 1 is a side elevation of an emboss` ing machine constructed in accordanceswith the invention,

Figure 2 is al top plan view of theim proved embossing machine,

chine,

Figure l is a transverse sectional view taken on the line Hof Figure 2,

Figure 5 is a sectional view taken upon line 5-5 of Figure 1,

Figure 6 is a similar' view on line 64-6 of Figure 2,

Figure Z is a detail fragmentary view of the jack employed in maintaining the ma-r chine rigidly in position,

Figure 8 is an enlarged frontelevation of the lower portion of the embossing head with the embossing roll removed therefrom, and illustrating the means for controlling the movement of the worky supporting table, t Y

Figure 9 is a side elevation of the devicev shown in Figure 8,

Figure 10 is asectional view taken 10-10 of Figure 9, v

Figure 11 is a plan view of the device, shown in Figure 9, and v Figure 12 is a fragmentary view talren through the upper embossing head and illustrating the manner in which the forward end of the upper embossing Aroll shaft is mounted.

rlhe embossing machine of my invention includes a body indicated at 13 formed of cast iron or any other suitable metal of suflicient size and weight to withstand the pressure and strains to which the same must necessarily be subjected. lThis body includeslower and upper arms vor heads 14 and 15 disposed in parallel relation, the lower head constituting a base adapted to rest upon a suitable table,` platform or other` support and having outturned feet 16 at its forward and rear ends, through which suitable bolts or other retaining members may be passed to secure the embossing machine tol its platform. The upper and lowerhead portions of the ybase are separated by a slot 17eX- tending throughout the breadth of the base and extending inwardly from the forward end thereof to a point near the rear lof the said base. throat in which the work is received during i the embossing operation.

The upper head 15 of the base is provided,-

on` line .55 Figure 3 is a front elevation of the may This slot or recess constitutes a inwardly from the forward end thereof, with a socket 18 to receive the lower end of a standard 19 constituting a part of the compression jack shown in Figure 7. rlhe upper end of standard 19 receives the lower end of a threaded stem 20, while the upper end of the said stem engages in a post 21 provided with an enlarged base or flange 22 at its top to engage with a ceiling or other overhead structure. Spaced adjusting nuts 23 are threaded upon thel stem 20'between the adjacent ends of standard 19 and post 21, and it isobvious that by manipulation of these nuts pressure in a downward direction may be caused to taire place in standard 19 to rigidly and firmly hold the embossing machine in place upon its supporting bench or platform.

The embossing machine includes 'under and upper shafts 24 and 25, the said shafts having their forward ends terminating at the front end of the base 13 and these adjacent ends of the shafts are equipped with rolls or embossing points between which the plate to be embossed is interposed in operation of the machine. The under shaft 24 is disposed at an angle to the other shaft 25 and is supported at its rear end in a bearing 26 depending from the rear portion of the base orbody 13. The forward end of the under shaft extends upwardly through a suitable bearing in the front portion of the under head 14 of the base, and a conventional form of embossing` or cutting roll 27 is secured in any suitable manner to the said forward end of the under shaft. The shaft 211' is capable of being adjusted longitudinally, and to this end the rear portion ofthe said shaft is threaded and detachably carries adjusting` collarsV 28. rlthese collars are disposed one upon each side of the bearing 23, it being understood that the interior of' the said bearing isiinthreaded.

The upper shaft 25 is capable of longitudinal as well as lateral. adjustment, and normally disposed'substantially parallel to the lrerf or throat 17 and slightly above the same'.v The rear extremity of this shaft is swingingly and rotatably supported in the bearing member 29 disposed in rear of base 13 and preferably formed integral with the latter. This bearing 29 has pivoted therein a sleeve 3() mounted for swinging movement upon the ends of pins 31 extending inwardly from bearing memb'er 29 at diametrically opposite points therein. rThe rear portion of the shaft 25 is threaded as shown and carries internally threaded collars 32 one disposed upon each sideof the bearing sleeve 30. lt is apparent, therefore, that longitudinal adjustment of the shaft. may be made by manipulating the collars 32.

The forward end of the shaft 25 is journaled in a` block 33 mounted for vertical iaeaeeo adjustment in the forward end of head 15` rlo this end, the forward end of the head is recessed, as shown particularly in ifig. 12, and slidably receives the said block. The opposing sides of the block 33 are provided with vertically disposed channels 3d which receive the inner ends of steadying pins 35 carried by the head, and the upper portion of block 33 is swiveled in the lower end of an adjusting rod or screw member 36. The member 36 extends upwardly through the head 15 and is provided at its upper extremity with a hand wheel 3T having a grip .3S thereon. From this construction it is apparent that rotary movement developed in the threaded shaft 36 will cause the block 33 to be raisedior lowered, depending upon the direction of rotation of the said shaft. The forward end of the shaft 25 is provided with a cutting or embossing head 39 for cooperation with roller 37 upon the under shaft.

A main power shaft et() is rotatably mounted in bearings l1 arranged in spaced relation above the base or body 13, and to the rear end of this shaft is secured a gear l2 in mesh with a gear 113 secured to the shaft 25 near the rear endv thereof. The gear a3 meshes with a gear la carried by the rear extremity of the under shaft 24. rflic main power shaft is provided at its forward end with a hand wheel 45, by means of which rotation of shaft 40 may be manually governed. The teeth of gears @M3-asl. are so constructed as not to become disengaged from or bound with each other in the several adjustments of the shafts. lt is apparent, therefore, that rotary movement developed in shaft @LO will be transmitted to gear 43, and this motion will in turn be delivered to gear L14, whereupon the shafts 25-2t will be caused to rotate, irrespective of the angles atr which the same may be disposed.

rlhe forward endof thek lower head 11- is provided with a vertically adjustable work supporting table 50, which is adapted to cooperate with the shaft adjustments in properly presenting the worlr to the embossing rolls. This table is" attached near, its forward end to the upper end of an adjusting shaft 51, the saidshaft being swiveled to the table 5t) as shown. The shaft 51 is supported in suitable bearings 52 at the forward end of the lower` head 14a, and is threadedly engaged by a nger nut 53 maintained between a pair of the said bearings. rlhe table carries an angular ofsetextension 511 at one side, having a vertically disposed slot 55 therein, through which extends a locking pin 56 having a wing nut 57 on the outer end thereof. The inner endl of this pin threadedly engages in the head 1l, and an expansion spring 58 is interposed between the headV and the angular extension 54. lt is apparent that by loosening the threaded lOO lill

lill) ing, and embellishing the outline or raised member 56 and rotating the finger nut 53, the table 50 may be raised or lowered, and when the desired adjustment has been attained, tightening of the nut of the bolt 56 will cause the table to be firmly locked in vits position of adjustment. Y

In operating the embossing' machine, the ends of shafts 2&25 will be provided with embossing' rolls of the proper type to perform the work at hand, and the upper shaft 25 and table 50 will be adjusted to properly accommodate and operate upon the work. The metallic plate to be operated upon will have outlined thereon, as by pencil, chalk or crayon, the design, symbol, number or figures to be embossed, and the operator inserts the work between the rolls so that the adjacent edges of the latter will properly aline with the symbol outlined upon the plate. This may be done by rotating hand wheel 87 so as to lift the forward end of shaft 25, and after the work has been inserted and properly centered, the said shaft is moved downwardly by retrograde movement of the adjusting wheel. The rolls are then operated by turning wheel 45, this action creating rota-tion in each of shaft- s 24 and 25. The operator moves the plate or work so that the outline of the symbol or figure upon the plate will pass properly between the embossing points,

as will be understood. This )operation will.

continue until the entire series of letters, numbers or symbols upon the plate have been embossed, whereupon the plate may be removed and such other finishing touches applied thereto as required, such as paintparts upon the plate. The character or thickness of the plate to be operated upon will determine the degree of adjustment of plate 50, as well as the character of the embossing. ro-lls 27-89 to be applied to the shaft ends, and it will be understood that the machine will be provided with an assortment of cutting or embossing rolls for a. proper operation upon all types. of work and in outlining varied forms of designsi Machines of this character are commonly of very heavy and cumbersome construction, so made in order to adapt the upper arm or head 15 to withstand the strains of more or less heavy work, under which said arm is liable to be forced upward, causing fracture of the body 18 connecting the arms 14 and 15 at the inner end of the throat. As a result, such machines. are comparatively costly in construction, due to amount of material used, as well as dicult to transport and move from place to place, and therefore costly in this connection, because of their heavy weight. It is therefore a desideratum to provide a. machine which, while of ample strength to resist all strains, is at the same time comparatively light in weight and accordingly cheaper of construction and more readily capable ofv being transported and moved from place to place as occasion requires. By the provisionof the overhead rbrace or jack 19, which is adjustable to suit varying conditions, the arm 15 is sustained as against the working pressures falling thereon and consequently liability of fracture of the part 13, at the point of `union of the two arms 14 and 15, is entirely obviated or reduced to the minimum, enabling a machine of great strength, but light in weight, to be constructed, with resultant economy in many directions.

From the foregoing it is apparent that I have provided an embossing machine of eX- tremely simple construction and which may be easily and properly operated, and danger of spoiling or damaging the work is eX- ceedingly remote. The various adjustments may be quickly and easily made and accurately maintained at all times, and while the above is a description of the invention in its preferred embodiment, it will be understood that variations in the form, size, proportion and arrangement of parts may be resorted to if desired, without departing from the spirit of the invention as defined by the claims.

Having thus fully described my invention, I claim 1. In an embossing machine, a frame including upper and lower parallel heads separated by an intervening throat, the upper head having' at its forward end a bifurcated portion forming a vertical guideway, a shaft carried by said head and arranged normally parallel with the throat, said shaft being longitudinally adjusted and pivotally mounted at its rear end, a block fitted in the vertical guideway of the upper head and in which the forward end of said shaft is slidably and rotatably mounted, said block having channels in its sides, pins carried by the walls of the guideway and engaging said channels, an adjusting screw mounted on the upper head and swiveled to said block whereby the forward end of the upper shaft `may be raised and lowered in the guideway,

a lower shaft carried by the lower head and inclined to the plane thereof, `said shaft being longitudinally adjustable, embossing rolls upon the forward ends of said shafts, intermeshing gears upon the rear ends of said shafts, and means for driving said gears.

2. In an embossing machine, a. frame having upper and lower horizontal heads spaced by an intervening throat, a shaft mounted upon the upper head and pivotally supported at its rear end, means for adjusting the forward end of said shaft toward and from the throat, a shaft carried by the lower head and arranged in an inclined plane, embossing rolls upon the forward ends of said Shafts, inter-meshing gears upon the rear'ends of said shefts,.1nea.ns for driving said* gears, a table supported upon the lower head above the forward end off the inclined shaii't, said table being vertically adjustable in the throat and having a slotted: oliset depending' at' one Side thereof parallel With one side of said. head, an adjusting screw on the lowerheadvswveled to the table whereby Meegeao Said table may be vertically adjusted, a locking pin passing through the slotted oifset and engaging a threaded. opening in the lower head, and a coiled spring surrounding said pin between lsaid oset and head.

In testimony whereof I affix my Signature.

HE NRY WELS CH.

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