US1788725A - Brick-roughening machine - Google Patents

Description

Jan. 13, 1931. R LINDSAY 1,788,725

BRICK ROUGHENING MACHINE Filed Sept. 11, 1926 3 Sheets-Sheet 1 flaierzf .19. flindaay,

SW01 new Jan. 13, 1931. R. D. LINDSAY 1,788,725

BRICK ROUGHENING MACHINE Filed Sept. 11, 1926 5 Sheets-Sheet 3 Zlwuentoz Rater! .0. 15mm PatentedJari. l3, l931 1 Application Ifiled September Thisinyenti'on relates to improvements in pressed brlck machines and'has reference more' 'particularly to machines for marking- V V prove the.

' appearance of the finished -Wall.

*Inthe manufacture of pressedibrick, it" is the surfaces of the brickso as to im often desirable to" scratch the surface of the gbrick so as'tofp'rev'ent the fiat-plane appear; ance o f the1finished'wall. This has usually;

been-accomplished by liand and has therefore added considerably;- to "the cost. :As'

pres's'ed'brickare foriiied-ifrom a powdered material that is but. slightly moistened, 'by

- subj e'ctingthe material to great pressure'; the outer surface cannot successfully be marked or scratched without fi'rst fbeing moistened. The proper 'mois'teningfof the surface is a} matter that involves considerable clifliculty as fmoisture should be supplied only to ithe surface'thatis to be roughened an'dmust also be applied eyenly and in the properam'ounts only; 7 e

I havef pliedmost satisfactorily bymeans of felt rollers arranged in pairs and having-contact ing surfaces. One of these rollers receives 7 waterfrom a suitable supply,"while the other roller contactswith the brick-and in this man surface of thebrickis iobtained." I "It may be mentioned here that pressed brick areentirely different from common wet clay brickand that anepparatus thatwill operate'suc'cessfully in connection with the latter will not operate successfully'with the former. This is fduej to'the fact th'at'the slightly. moist pressed brick will crumble Very' readily fwhen marked with 1 a scriber; while a Wet clay brickwill not. This makes it essential to carefully moisten thef'snrfaces to be and it ismore particularly to this additionalmeansto which this invention relates.

' as My invention also relatesto-improyements v in the specific construction of thea'pparetus' employed, all of which "will; hereinafterfbe I described ingdetail and claimed and for this w purpose reference will n w be hadtothe ac'- 0 companying drawin g inwhic h theI liefe. f. od

ound that themoisture can be L 7 ner'an e'vendistributi'on of moisture overthe lan View of my: improved 303E311 1). LI iJsAY, orpmvmjab mm i V ereof has been'illustrated and 2 7 Fig.8 is a'section taken on line Fig. A

' Nnmerals I-and 2 represent the two side members ofthesupporting frame. f These members 1 are. connected at var ousfpomts v along their length by means of angle irons some supporting surfaceby neans of leg 7 of. which thereinay beas many as necessaryi V one end of each are bea'ringsfi within which.

"Secured to the side members 1' and 2; near is frctatably mounted a shaft 6 to which I liaye secured'two'sprocket wheels 7. Spaced in whichis' ournalled a shaft. 9. This sheift carries two sprocket {Wheels 10 which are similar-to the sprocket wheel 7 on shaft 6. Securedlto" an extension of shaft 9 is an en largedsprocket wheel 11 towhich the power, fronr'the mOtOIL OI engine, is delivered to the machine. [A'f conveyor belt comprising ates with "corresponding sprocket whee'ls 7 .andlO is=provided for the purpose of movingibricks, along the "machine These sprocket 3. These side members are supported from. f

from theibearings 5'ar'etwo other bearingsS two spr'ocketchains12, each of whichcooper chainsgl2have special links 13 spaced equi distantly These. links are 7 provided with iupweirdlyektending arms 14 to. which 7 nism will be referred to i and fmore fully explainedhereinafter. Secured'to the tr-ansap1ate115 is secured? This part of the mechaverse angles '3' are channels 16 andl'l, vwhich serve supports" for the sprocket chains 12 Thefs'procket chains 12 arespaced apart a1 distanc which "is" less] than the lengthlofj a brick so thatw hen'fthe bricks are lz'iid in place transversely of the conveyor, theyi fwill' "restfpnythe s roc c in in manner Sh-QWQ n. Fit-L5? -thewheel 11' and l afi' i brackets Qand isprovided:with branch i pipes'32 that-extend toandterminateabove f by means of bolts 25.

viewed as in Fig. 2, the sprocketchains 12 will move in the direction of the arrow in Fig. 2 so that any bricks that rest on the sprocket chains will be moved from left towards'right in Fig. 1. The plates which are secured to the special links 13 will naturally engage the bri'cksin the manner indicated inFig. 5.

As the operation of the machinecauses more or less resistance to the movement of the bricks, a considerable pressure has to be applied to the latter by meansiof' the plate 15 and unless special means is provided, the

plate'15 will rotate slightly out of plumb position. I have therefore provided means for holding the plate softhat it will retain its vertical position, regardless of theforce exerted by it duringthe operation. Thislast named means comprises two inverted angle irons 18 which are secured to the side of the channels. 16 and 17 above referred to. An L shaped bracket 19 is secured to the rear.

surface of each plate 15 and the horizont'al portion of this is perforated for .the reception of a bolt 20, whose lower end extends below the horizontal flanges of the'angles 18 and is provided with bearings 21 for the rollers 23.

These rollerslie beneath the horizontal flangesof the angles 18 and will be drawn up into contact with these fianges whenever a x forceis applied to the plates which tend to rotate them in (Fig. 5.). v p

Two brackets 24L of identical shape and sizeare secured to the side members 1 and 2 A. downwardly extending steel bar 2.6.is secured to the-top a counter clockwise direction of each of these brackets and is provided with openings near its lower end for the reception of the axle 27 of the felt roller28. This roller is mounted in sucha position that the axle 27 extends, transversely of the direction of movement of the conveyor belt and at such a heightthat the roller will rest 01?. come in contact with the upper surface of the bricks as the latter are being 'moved underneath the same by the action of the conveyor belt-12.. The second felt roller'29 is pivoted to thefree ends of the spring supports and is held in contact with thesurface of the roller 28iby meansof the force: exerted by. said springs, Pipe .31 that is connectedto a suitable source of water supply .1s secured to. the upper ends. of the the upper surface of therolle'rl29s, Each. of

. these brfanch pipes-is provided with avalve" means} of which theiratebfflow :of

' watel n ay, be regulated. When the, machine is in operation water is caused todrip. slowly through the pipes;82 and fall. onto the upper surface of, theroller 29 whichithereby. becomes, ,wetted and some of the water: is trans ferredflto theroller'28 .at'th'e point; where these rol r sea ed-1 Bythis he.

roller 29 becomes uniformly wet and is therefore enabled to uniformly moisten the surface of the brick with which it comes into contact.

Sinceit is my intention: to roughen the ends of the bricks aswell as the upper surface thereof, I haveprovided a feltroller which is pivoted soasto rotate about a vertical axis in the manner indicated in Figs.

1 and 2.v A pipe is connected to the pipe the action of the gravity.

.After the bricks have passed the moistening apparatus they are ready to be roughened and for this purpose I have provided a scribing apparatus comprising a plurality of scribers and I will now proceed to describev this means. Bars 37 aresecured tothe upper "side of the bracket 38 by means of supportbolts 39- in the manner shown iii-Figs. 2 and"-5. The bars 37 serve to support two transversely and longitudinally adjustable bars eOiand 4:1 whiclr'are provided-with aplurality of openings throughwhich the scribers 42f extend. These scribers are arranged 1n two rows and have their upper ends secured together by means of a clamping devicewhich has been indicated as a whole by reference ntuneral 4:3. The lower end of these scribers is adjusted vertically so that they will come below the upper surfaceofthe bricks a sufficient distance toiroughen'the latterby means 1 of parallel grooves in the manner indicated in Fig. 5. The adjustable construction applied to the members 40 and 41' makes it possible to adjust the scribers relative to each other so that the'lin'es or grooves will be properly spaced. By using two groupsbf scribers, it is. evident that the-'seribersican be placed twice as far apart as-if they were placed-in one row and this reduces orminimizes the danger of breaking'the surface of the brick. v

For the purpose of roughening the ends of the brick, I havetprovided another group ofscribers'which have been indicated by'nuemme, "Thesescribershave their front ends supported by. a. bar 45,.whose-ends are 'pivotally: connected to, the horizontal supporting members 46 and 47 and have their free ends held in alignment by means of a clamping device 48. --Secured to the upper is] provided with two adjusting screws 50, whose ends engage the bar 45 for the purpose of moving the latter to the desired position;

surface of; the-bracket 38., is a bar 49 which i with respect to the ends of thebrickfandto subject the latter to the necessary amount of pressure, I have mounted the roller 34in a A U-shaped bracket'57 whose ends are pivoted" I 7 ,Byfjmeansof this adjustment'itis possible of three separate bars, thecenter' bar, which i has been indicated by numeral 51, isslidable,

uular ma ner, whereas;,if the brick'sur'faces with respect to the others and can be adjusted by means of the nut52. It-is evident that by thesemea'ns the scribers 44 can be .firmlyclamped and held in the desired position with respectto the support 45." After the bricks have passed beneath themoistening appara tus, they are moved towards the roughening device which has just been described and as I r they pass the points of the scrib ers, .the latter penetrate thesurface of the brick and out parallel groovesttherein. vUnless the brick surfaces have beenlproperly moistened,-'the scribers will breakthe surfacefin an irreghave been moistened just right; the scribers will merely out clean grooves which give the 53fa'nd 54 which cooperate with belt wheels on the shaft55' and on the shaft 55'. "These a belts are made to travel faster than the sprocket chains l2 so that they will tend to separate the bricks as thelatterare delivered to the belts by means of a chain 'conveyor. Another conveyor 56 carries the brick to any desired position. Where, they are loadedfon' two cars or other; transporting means and are transported to the kiln; j

For the purpose of adjustingthe'rol-ler'34 at58 (Fig; 2). Albell crank lever 59 is piv oted to a stationary part at 60 and carries a pin 61 that engages the end of the bracket 57. The other arm of this bell crank carries a weight 62 which causes the pin 61 to move towards-the bracket, 27 in such a manner that c the roller 34 will be pressed against the ends pressed brick may be satisfactorily striated 7.

andlthat this operation is made successful by means'lof themeans that I have provided for uniformly wettingl the surface ot the brick to be roughened.

7 claim as new is: '1 c 1. A machinefor roughening the surface of.

Having described *my memos; what I pressed brick comprising, in combination, a

surface of thebrick-"a striated effect. After. the brick has passed the roughening de-iy vice,' they 'are-theni ready to be transferred;

surface; -mean'is for-. inofvingbrick 2. 'Inamachine for roughening the surf a'cefof'pressed bricks h aving means for sup: porting: bricks, means for moving said brick along said sup oa'and 'agplurality of scrih-;-

ers held in position to contact with "the. surfaces" or the bricks as the latter are moved p'ast th e "scribers', the combination withj the above 'offa feltroller mounted .to rotate about an axis-transvers ito thedirectio'n of movememe ofthe brick and 'so flocated as" to fcome int'dcontact with the upper surfaces said i the i bricksand "meansrera plying water ini ,1.

formly overthesur'face of theirol'lerwhereby the surfaces: of fthe bricks that contactfwitli In a i' iaohineffor ro gheningithe sur ce v ofip ressed'bricks having means for s'upport' 7 Ling bricks, means? for moving said-'brick along a s ppfortandai'pl'urality of sefiber s'hsid; in p; na)tomeswahahesurfaeesofth a i. bricks a'sthe-latter are moved past th'e scrib are, the combination with the above. of; two ielt'rollers mounted onparallel axes andlcontacti-ng witheach other along their outersur} face'means for securing said rollers in place so thaton'er'oller will contact with the upper i surfaoe-ofthe brick as they are carried along the conveyor andbefore they are acted upon;

by the scribersf I 4. In a machine for roughening thesurface the first name .l roller. 5; In a mach nefor,roughenin z-the surface ofpressed br cks havingineans for supporting bricks, means forinoving saidbrick along of pressed bricks having. meansfor supporting bricks,'nieans for movingsaid brick along said support and Ya pluralityof scribers held t in'position to contactwiththe surfaces of the bricksasithelatter are moved past the scrib' I ers, thefl'combination with the above ofa'g framework; a roller supported on said frame- "5 I work so as tojbe rotatable about an axissub- -stantially perpendicular to the direction ins-1' 5 which the bricks travel'andadapted tofcon I tact with'the' upper surface of the bricks, a'i" 1 second roller supported by said framework l i and adapted to contact with the first named roller,. means for forcing the second roller against the first roller and means for applying water to -the second roller so'as to moisten Y f; i

ea i a saidsupport andapluralityfof'scribersheld in positionito'contact withthe. surfacesof the bricks as the latterare move'd'past the'scrib- '7 ers,thecombinationwith theabove of a frame-g a 'work, a-roller supportedon saidframeworkso I astoberotatable about an axis substantially; perpendicular to' the direction in which the, I

bricks traveland adapted to contact iw-iththe" 1 30 i upper surface ofgthebricks, a second roller supported by said frameworksand adapted to contactwith thefirst namedsrollerfmeans 7 for forcing the second reller, against the first roller, means f rsupplyi-ng water to the second roller so as to moisten the first named V roller, a third roller supported on saidframe- Work, said roller being rotatable about a vertical axis, means for applying Water to thes un m face of the thirdv roller and means for forcing this roller against the endsr of the bricks.

6. In a machine for toughening the surface of bricks having a conveyor for moving the bricks along a support having. a horizontal 15 surface and past. a support containing a' plurality 0f sc-ri bers; the combination with said support, and conveyor of a framework supporting two rollers having felt surfaces,

cneaof said rollers being {so supported that it will contact with the upper surface of the bricks as they aremovecl towards the scribers, the second roller being supported s'oas to be rotatable about anaxis parallel with the first rollerand havingits, surfacein contact with r 7 they surface o f the firstrcller and meansffcr 'applyingwater t0 theseeond roller, V rIntestimonywherecfl afliX-my signature: ROBERII 1); LINDSAY.

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