US2536650A - Pattern-controlled wallboard engraving machine - Google Patents

Description

Jan' 2, 1951 l.. A. o. MARTINEZ 2,536,650

f PATTERN-CONTROLLED WALL-BOARD ENGRAVING MACHINE Filed Oct. 18, 1946 5 Sheets-Sheet l ATTORNEYS Jan. 2, 1951 A. o. MARTINEZ PATTERN-CONTROLLED WALLBOARD ENGRAVING MACHINE 5 SheetsHSheet 2 Filed OCb. 18, 1946 fici-.4-

ORNEYS Jan. 2, 1951 L. A. o. MARTINEZ PTTERN-CONTROLLED WALLBOARD ENGRAVING MACHINE s sheets-Sheet s Filed 001:. 18, 1946 Mgg . m mw 3 .Ill- @i W RN EYS Patented Jan. 2, 1951 UNITED STATES PATENT QFFICE PATTERN-CONTROLLED WALLBOARD ENGRAVING MACHINE Luis Alberto yOrta Martinez, Caracas, Venezuela Application October 18, 1946, Serial No. 704,185

3 Claims. l

My invention relates to a machine for engraving unique designs in wall board, wood or other similar material.

The principal obj ective of my invention is to construct a machine that will quickly and eiciently engrave designs of many varied configurations in wall board. A further objective of my invention is to construct a machine that can handle more than one board at the same time and yet enable the work to be performed on -all in one operation.

Anadditional advantage of my machine is that it performs the work for which it Was designed easily and efficiently at an extremely low cost. It can be adapted to work either automatically or manually and, even when utilized manually, it only requires the services of one man.

A further feature of my invention is the cutters which engrave the designs into the wall board. These cutters are mounted on continuous chains and can be so designed that any desired contour may be secured. The result is a unique and artisti-c design that adds greatly tothe beauty and utility of a room where such material is used in the construction.

Further advantages and features of my machine will be apparent as I proceed with the description:

Referring to the drawings- Figure 1 shows a plan view of my machine.

Figure 2 shows a vertical longitudinal section on line 2-2 of Figure 1.

Figure 3 shows an end view of my machine.

Figure 4 shows a vertical longitudinal section of the engraving mechanisms on line 4-4 of Figure 1.

Figure 5 shows a plan elevation of one of the engraving mechanisms.

Figure 6 shows a cross section view on line 6-6 of Figure 5.

Figure '7 shows a typical design pattern en-A graved by my machine.

Figure 8 shows a cross section View on line 8-8 of Figure '7.

Figure 1 shows a plan view of my engraving machine I0 which consists of a stationary frame II with two movable tables 4I) and 4I operating on either side of the stationary frame II. This machine is also equipped with means consisting of a cam operated lever 50 which brings the wall board 30 that is positioned on the movable tables 4I] and 4I in contact with the various cutting mechanisms I6, I 1 and I8.

The stationary frame I I is the central portion of my machine and it is roughly rectangular in shape, with two long sides I2 and I3 and two end portions I4 and I5 respectively. Preferably this frame would be constructed of metal, however, other similar material that would serve the purpose may be utilized. The frame is sufciently long enough on its sides I2 and I3 to handle 12 feet by 4 feet wall board Which is the conventional size in which this material is manufactured. Mounted on the `outer portion of sides I2 and I3 are duplicate cutting mechanisms I6, Il and I8 which arepositioned directly opposite each other. These duplicate cutting mechanisms are interconnected by shafts which in turn are driven by pulleys so that one or more shafts are `common to two cutting mechanisms which are identical in every respect.

Positioned on either side `of the stationary frame II are two movable tables 40 and 4l. As the movable tables 40 and 4I are identical in every respect, the same character references will refer to correspondng parts of both tables. These movable tables are mounted in both upper and lower portions on wheels. The wheels in turn are guided by rails, the lower wheels 4l being guided by rail 45 and the upper wheels 4l being guided by rail 46. The upper and lower portions of the movable tables 46 and 4I are operatively connected to the upper and lower cams 5I and 55 respectively through adjustable arms 48. One end of the arms 48 is pivoted through pin 51 to the movable tables 40 and 4I while the opposite end of these arms are pivoted through pins 58 and 58 to the cams 55 and 5I.

An additional feature of arms 48 is that they have adjusting device 49 by which their distance of movement may be varied. Connecting the upper cams 5I with the lower cams 55 are cam arms 59 which are pivoted at opposite ends of the stationary frame II to the upper and lower cams respectively through pins 58 that hold one end of the arms 48 extending from the movable table 46. This construction is duplicated at both ends of the stationary frame II and the upper cams 5I at opposite ends of the frame are connected through a cam shaft 52 while the lower cams 55 at opposite ends of the frame are connected through a cam shaft 56. The cam shafts 52 and 56 extend the entire length of the stationary frame II.

At one end of the stationary frame Il, an operational lever is connected to onev of the lower cams and movement of this lever in one direction will bring both movable tables 46 and 4I toward the cutting mechanisms I6, II and I8 which are mounted on the stationary frame II while operating the lever in the opposite direction, will move the tables 4i) and 4I away from the cutting mechanisms. The movable tables 4E) and 4i are also equipped with means to position the wallboard 3E] during the cutting operation.

At the lower portion of both of the movable frames there are situated continuous :supplyfbelts 42. The supply belts 4'2"operate onr'oll'ers 44 and these rollers can be connected through pulley means to a motor so that the necessary driving force will be supplied to move the .wallboard into position.

Positioned on the movable tables are upper and lower guide means 53 and 5'4"resp`ectivelywhich hold the wallboard and prevent any `'ver-tical movement of the board during cutting operations. At the upper portion of the movable frame,` the guide means 53 consists of an angular shaped piece'of metal with aldownw'ard flange that extendsthe length ofthe movable frames. On the lower .portion 'of the movable :fr-anaeisa-similar snapedpiece ofimetal'fwith-an'upward flange .that also extends the length 'of the movable frame. The space between theupper'and lower viianges and thesi'des'll 'of the movable tables 40 and 4I isislightly.-largerithan the-vvidth-'of the Wallboard 3U whichallows free lateral movement of the Wallboa'rd whenit'isbeingjplaced in position for the engraving; operation.

The movabl'efframes ill and' I'fa're also equipped withva lockingldevicefinwtheiorm of a clamp 43 at each' end `which prevents longitudinal' movement of the Wall-boardv during'the cutting operations.

As canbeseen, through either the manual or automatic operation v`fof lever .'50, the mechanism can -beso'controlled:that vthe wallbo'ard can be fed -intos-position-andthen Ythrough the adjustable arms, a definite cutting depth can be set to controlithe cuttingdepth.

An adjustable finger gauge YII Ais mounted on the movable frames in such amanner thatit contacts thestationary-frame II during the engraving operation .preventing =the= movable frames 40 and-4i irom approaching any closer-tothe stationary'frarne and=in thatmanner control the depth of'thecut in'the'fwallboard 38.

'As- 'showniineFigure '1, the 'driving `mechanism which consists of fa-series of shafts and pulleys, all' inter-:connected through belts, 'is contained in the central"portion-ofV thefstationary frame II Necessarily, due to the diierent types of designsgthe positioning vvof :theshafts and pulleys are diierent'throughout. However, in'view of the factfthat identical cutting mechanisms are mounted on the-opposite -sides'of the stationary frame, one set of shafts `and pulleys is suflcient to operate two cutting mechanisms.

-As shownin Figure'l, `the-shafts 60 of'cutting mechanism Ibextend through thev both Asides .of the stationarylframe I Iand mounted lon the opposite 'end `ofseachflshaft 'aresprocket gears 24 which drive the Vcontinuous sprocket chain '23 of the cutting mechanism. zPositioned on the shafts '69 inside the Ystationary housing II are pulleys 64 which are connected-bya driving belt 66.

`Cutting mechanism -I8 -is similarly designed with the four shaftsilZ, drivingsprocket gears 24 onbothfsidesfrof thevstationary'frame -II :being inter-connected 'through pulleys 'I2 andwbelt 13. Both of these 'mechanisms I8 and |8 in turn are driven 'by "shafts 6I and 'Si' which `are equipped with similar. pulleys A*141 and 'I4' 7and: are

4 connected through belts 'I5 and I5 to the cutting mechanisms I6 and I8 respectively.

The center cutting mechanism I1 due to a different type of design has a frame supporting its main shaft 63. This shaft 63 is equipped with a large pulley 61 which is connected to shaft 6I through belt 'I6 for its driving force. Also mounted on either side of the frame 65 and on Afshaf-t'ili .are tvvo double pulleysl28. llPulleys 28 inadditiontdbeing equipped to receive't'wo belts,

are also in two parts with the inner portion 'I8 being keyed to shaft 63 and supported from the vouter .portion "ITJof the pulley by a ball bearing `su'lcel-I. This enables the outer and inner portions vofthe pulley-torotate freely with respect to each other.

:Shafts 6I :and F8 I z are connected through belt 19 and the motive means which can be supplied by a conventional motor is connected to shaft 6I through pulley 80.

IIt can bef'seen then byfdrivirrglilpallf @the cutting "mechanisms will be 'placed :in operation and will move at the same time.

As fsl-iown -in 'Figure `"1, Leach `side rof :the fstationary-fraine- I I- .ts preferredform is-:aequipped Withthree di-ffei enu cuttingy mechanisms fonn different f'designs ibut Lare essentially fltne same 3in 4their mechanical Aconstruction operation.

Fig-ure 5 shows Aa'eloseupV` view of .cutting .mechanism I'I which consists of a continuousesprocket Vchain 23 which \is driven by usprocketxgears :"24. At' pre-determine'd'intervals .there is mountedion this sprocket chain several *double i flange 'guide rollers-122. .Thesegui'de rollers 7follow thei groove 8S in lthe track 5-28 Which' is shaped :according to the design patternffdesired.

' Mounted onf-these lguidefrol'lerseZZ zare cutting blades 25 Iwhich` uttracks v8l -`inthevvallboa'rd whenftlie wallboafrdf) ist:bronghtiinfcontactwith the cutting .mechanisms fhefcuttingblades 25 in Atheir preferred form are made 'fof fst-eel =cr carborun'dum, however,they-zcan'be made of :any other similanmaterialfthat will-serve the: purpose.

Between theftrackuand thefside |2of;athe stationary. iram'efl I ;'arespacers??Izwhichposition and. supportfthettracma :dennite distance from the side I2 of the stationary frame I I. :The-gear shafts 28 driving thefgears 24 .':extend through the sidetZ fofvthestati'onary .frame :II andf-the track .-2 ``and fha-ve :pulleys r2 'I positioned v.on tthe end of the shafts whichl arevconnectedffbyubelts 29 Ytop'ul'ley :28 dwhich in'turn lis'connected-5to the fdrivingmecnanismwimthef-mafnnergpreviously described.

Cutting mechanism I7 is unique and differs from fthe "other :mechanisms in :that .the :entire cutting mechanism includinglthetraekasprocketgears x24 #andsprocket-chaman -are mounted on a circular plate 83. This plate-ris'fkeyed to thesl'raft-e andfwhen thisshaft is 4driven :through belt 'I5 which is connectedvto atl-1e -`:large pulley 8l, l'the --Fentire f up'late`-rotates. Positioned on ethe plate 83 is an indicator 85 which can -berset at any desired.V marking-lllewhich are .placed. on'i'the side lof the: fra-me .fI l.

-In the event it :is desired ftd-secure .-a certain design, plate 83 -eantbefrotated-'until thelindicater' is set on thedesired {rn-ark. -Thenplate y is then#slain-pecl` `in position through the .operation of fclampe88 and -belt Y"155 y--is dis-connected :from thelargepulleyfi'l. :This will prevent thefplate from rotating. f However, through .double pulley 28 which is connected through belt 82 to v-'the driving mechanism tand -ftnroug-hhbelt l. .29- -to the gear pulleys 21, the cutting blade 25 which is mounted on a guide roller 22 will be caused to move in its groove 89 in the track 20.

Another possibility is to have theplate rotate with the cutting mechanism remaining inactive by dis-connecting belt 28 from the pulley 21.

It can be readily seen that a variety of designs may be secured from this one cutting mechanism through various combinations of the setting of the plate on various markers, also by controlling the movement of the cutting mechanism I1 and the plate 83. Due to the size of the pulley 61, the plate will rotate at a slower speed than the sprocket gears on the cutting mechanism.

Figure l illustrates a type of design that may be made by this machine utilizing the cutting. mechanism l1. Loop 88, for example, will be cut when the indicator S5 is placed approximately on marker I5 of the mechanism While loop 81 will be cut when the indicator is set approximately at number three of the mechanism.

Figure 8 illustrates a cross section area through the cuts showing the depth of the tracks 8|.

Cutting mechanisms i6 and i8 are essentially the same as mechanism l1 with the exception of the contour ci the track and the increased number and location cf the gear shafts and gear Sprockets. By placing a series of holes in the side of the stationary frame Il, it Will be possible to substitute various cutting mechanisms with the shafts being relocated in various holes according to the contour of the track to be used.

A variety of cuts in the wallboard or wood may be secured through the use of different cutting pulleys equipped with a variety of cutting edges. Also, when the machine is used on Wood, it is contemplated to use a specially designed pulley to start the track and then substitute a nishing tool to complete the design.

It is also possible to mount a cutting tool on each of the guide rollers of the mechanism and, accordingly, either one cutting tool or plurality of cutting tools may be utilized, depending on the speed of operation desired.

A design which is engraved on wallboard or wood by this machine may be enhanced by superimposing or cutting one design on another. It is also possible to cut the nished design into sections and then re-assemble it into various new and different congurations.

It can be seen that by varying this procedure, innumerable designs and contours may be obtained from the use of a few basic cutting mechanisms.

Whereas I have discussed the preferred form of my device, it is realized that minor changes may be made without departing from the principal scope of my invention.

I claim:

1. A. wall board engraving mechanism which lncludes a stationary frame, an engraving mechanism on the side of said stationary frame, a movable frame disposed alongside of said engraving mechanism, means on said movable frame for adjustably supporting a sheet of wall board thereon in a plane parallel to the side of the stationary frame, manually operable connected cams at the top and bottom of Said stationary frame, links connecting the cams with the top and bottom of the movable frame whereby the movement of the cams in one or the other direction will move the movable frame to and fro-m the stationary frame and the engraving mechanism thereon.

2. A wall board engraving machine which includes a stationary frame, a disk journaled at the side of said frame and having a groove of predetermined shape therein, a roller riding in said groove, an endless chain to which said roller is connected, an engraving tool mounted on said roller, sprocket gears on said disk and operatively connected to said chain, said disk being angularly rotatable to selective positions of adjustment about its journal axis for varying the position of said engraving tool, and means to drive said sprocket gears.

3. A Wall board engraving machine which includesl a stationary frame, a .disk journaled at the side of said frame and having a groove of predetermined shape therein, a roller riding in said groove, an endless chain to which said roller is connected, an engraving tool mounted on said roller, sprocket gears on said disk and operatively connected to said chain, said disk being angularly rotatable to selective positions of adjustment about its journal axis for varying the position of said engraving tool, means on said disk and frame cooperating to indicate said selective positions, and means to drive said sprocket gears.

LUIS ALBERTO ORTA MARTINEZ.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTSl Number Name Date 141,214 Frantze et al. July 29, 1873 431,525 Mattison July 1, 1890 436,078 Evans Sept. 9, 1890 765,744 Mahar July 26, 1904 843,322 Bontenakels Feb. 5, 879,571 Neill Feb. 18, 1908 989,480 Blood Apr. 11, 1911 1,050,198 Allen et al Jan. 14, 1913 1,084,460 Marstall Jan. 13, 1914 1,255,935 Sabin Feb. 12, 1918 1,281,004 Herman Oct. 8, 1918 1,554,497 Goff Sept. 22, 1925 2,026,109 Walters Dec. 31, 1935 2,378,017 Hubkey June 12, 1945

Images