US2604943A - Machine to cut insulated brick or sand coated siding - Google Patents

Description

J. P. BROWN July 29, 1952 MACHINE TO CUT INSULATED BRICK OR SAND COATED SIDING 3 Sheets-Sheet 1 Filed Feb. 7, 1949 John R Brown INVENTOR.

3 Sheets-Sheet 2 John P. Brown JNVENTOR.

( uny fiM y 29, 1952 J. P. BROWN MACHINE TO CUT INSULATED BRICK OR SAND COATED SIDING Filed Feb. 7, 1949 July 29, 1952 BROWN 2,604,943

MACHINE TO CUT INSULATED BRICK OR SAND COATED SIDING Filed Feb. 7, 1949 3 Sheets-Sheet 3 v John R Brown INVENTOR.

BY Wm MW EML Patented July 29, 1952 oFFics MACHINE 'rolci'i'r INsULA'rEnBnIoK on? j l. sA n COATED s mmer John P. Brown, sunbu'ry Pa.

Application February 7, 1949 Serial No. 74,896

j rThi s invention relates to novel and useful improvements in cutting apparatus. v

' 'An object of this invention islto out various articles by means of retaining the article to be cut'on'the top of a table or support and passing a blade or cutter holder having a cutter therein over the material to be cut, the holder being slidably disposed on the article holder.

Another object of this invention is to provide asi'mplified and improved device of the nature to be described which is used forthe purpose of cutting" insulated bricks, sand coated siding and any other element adaptable for use in conjunction with the cutting machine by clamping the article and-passing a holderthereover in cutting relationship therewith, the holder "being mounted on the clamp for retaining the article to be cut and including rollers for facility in movement thereof, the actual movement being imparted by manual means or by motor operated means-11; i v

-'Ancillary objects and features of novelty will become apparent to those'skilled in the art, in following the description of the preferred form of the invention, illustrated in the accompanying drawings,.wher'ein: I

- Figure 1- is agside view of the preferred form of the invention;

a Figure 2 is a fragmentary side view similar to that shown in Figure 1, showing a second operative position of theelements;

Figuresis a plan view of the device shown-in Figure l; 1 I I- Figure 4 is a sectional view taken-on'line 44 of Figure 1 and in the direction of the arrows; Figure 5 is a sectional View taken on line 5-5 of Figure-2 and in the direction of the arrows;

H Figure 6 is a sectional view illustrating details of th'ecutter holder and taken on line 68 of Figure 2 and in the direction of the arrows; Y V

Figure 7 is an elevational end view of the device shown in Figure 1 and taken substantially on the line 7-! ofFigure 1 and in the direction of the arrows; v

Figure 8 is a sectional view illustrating details of construction of a pair of cams used in conjunction with the invention;

Figure 9 is a sectional view of the cuttermechanism and taken on line 99 of Figure 2 and in the direction of the arrows; and,

Figure 10 is a sectional view taken on the line I 0 of Figure3 and in the direction ofthe arrows.

The table I0 is provided with a lateral portion I 2 having a number of ribs l4 on the upper sur- -2 Claims. (01.164 73) are maintained in space facthereoi The materialwhich is to be cut 'is 'disposed'ofn this tabletop. A plurality oflegs l8 having suitable bracing attaching them; to; the

table is provided. Astandard 26 including sides 22 and 24 respectivly and a spacer 26 is provided at one end and *on the upper surface of the table 10'. A drive shaft 28 is mounted for rotation in suitable bearings in the sides 22 and 24 and has a pinion 30 at one end thereof. At the "other end there is a pulley 32 adapted to have a belt entrained therearound which is also entrained around the drive pulley-of a conventional-motor; A handle-34 for manual operation is also fixed to the drive shaft 28.

The pinion 30 is 'enmeshed with the gear '36 which ismounted on a shaft 40. The shaft 4U-is also disposed for rotationin the sides 22 and 24 respectively. A drum or reel 42 is mounted on .the shaft and has-a cable '44- wound there around. i A ratchet 45 is fixed for movement with thereel 42 and a dog is pivoted-to the sidei24 engageable'with the ratchet. Theratchet sefves init'sconventional' capacity. 2 1H .'spaced from the standard 20 is a' bracket which mounts an" idler pulley'50 which is -on an idler'shaft 52. The idler shaft is maintained in placeein the bracket through the medium of conventional pins 49"orthelike.' The said cable 44 is disposed on'the idler pulley 50 thereby guidingthe same. 1 r; i. As is shown in Figure-1 there is provided a cable clamp mat the free endof the'xcable-which is attached toxa tool holder or carriage generally indicated at 56. "It is apparent now'that upon rotation of the drive shaft 28' either by manual means or'by-a motor-the tool holder cr'carriage 56 may be pulled toward the drum 42 which has the said cable 44 wound therearound.

A guide and clamp bar 58'and fiflrespcti've'ly (1 relationship by a pair of 'spacer plates B2-and 64 respectively. These spacer-plates are fixed to the guide bar and -'to the clamp bar by means of nuts and screws extending therethrough and provided in 'on'e-of a number of apertures 'in order that adjustability between these two bars 58 and fiurespecti'v'ely may be eiTected These bars are maintained in placeon the .table In bymeansof .a bolt (Figure 5) 'lflflwhich has a wing nut '12at one end" and has .'a .yoke 14 at the other endo -This yokeextends; around the bottom portion of the clamp bar filigand is pivoted thereto by means of a conventional pin 16. A compression spring 18 i's disposed in concentric relationship with the bolt I and reacts on the undersurface of the table IB- as well as the upper surface of the wing nut 12. Hence, the compression of the spring 18 may be regulated as may be the efficacy of the holding properties of this mechanism.

A standard 80 is fixed to the table [0 as by means of bolts 82 or the like and has a plate 84 rigidly fixed to the top thereof. In this plate there isja" slotWnnumbered} and the" spacer plate 64-is=-disposedin this slot. Hence; lateral movement of the guide and holder bars is materially obviated.

Means is provided for raising and lowering the two bars 58 and 50 respectively not only tor-plate ing an article to be cut in the proper position but In order to cut a sheet in order that it may fit the pitch of a roof, the sheet is first marked at each end and laid on the table. The marks are spotted with the cutter block and then the cutter block is pulled to one end of pair of bars 58 and 60. The cams are then operated so that the sheet of material is clamped firmly to the table and the reel is operated in order to perform the cut; The handle M0 is employed for re- -turning the carriage.

v In order to cut a sheet of material for the purpose of applying it around a window frame,

nthesill lineis marked and then the casing line gis marked and both lines are squared. Then,

also for the purpose of moving them to the desired position when performing special and cut;

a special chisel-shaped blade is disposed along the point in the corner formed by intersecting lines made after squaring, and by means of a ting operations. This means may be seen best in Figures 6-8. pair of uprights 99 and 92 respectively is fixed to the end of the table opposite thathaving the winding mechanism thereon. A stub shaft 94 is mounted for rotation in these uprights and has a handle 96 fixed to one end thereof; lntermedie ate ,the ends is a-pair ofv cams 98 and W0 respectively. One of the cams operates on a finger 192 which is fixed to the spacerplate 62 (Figure 8) while the other cam engagesthe spacer plate 62 (Figure 2) when the two bars 58 and 60 respectively are'held in the down position; 7 This tends to hold the two bars firmly in place. Also to materially reduce side or lateral thrust is a stay rod I08 fastened at its-ends to brackets!!!) and H2 respectively which are in turn mounted on the lowermost bar 68. JThe structure ofthe. carriage includes a'tool bar, H4 having cuttersltdtherein being fixed in place" by any'lsuitable means such as set screws. or. the like. The cutters are mounted in tandem in order that upon: movement of the carriage. 56 the second and third tools will track with respect to'thetfirst tool. :1 i Brackets H8 and I respectively are fixed to the tool bar H4 and-mount wheels 122 and I24 forrotation; Thesewheels; are preferably of; the ball bearing type and they engage the undersurface 'of: the guide bar 53. Hence, upon movement'of the cable 44 around theidrum 42 the carrlage ortool holder is slids'moothly in a predetermined directionj Aslide is formed on the lower surface by means of notched plates I26 whichiare attached to the .tool' bar by means of bolts o'r'the like? These slides move 'across the upper surface of the. clamp bar 68 as thewheels I22 and-IM'respectiVelyare operated; 4 In order to assist in retaining the material stationary while it is beingcut-one or more angle irons I38 may :be'fixed to the upper surface of the table ill by any suitable means such as bolts orftlielike, i ;;In operation the handle .95 is motivated to lift the-two bars 58 and 60 respectively. The dog or ratchet pawl 43 is removed from the. ratchet 48 andthe carriage is moved in such direction as to extend the cable from the reel. The sheet'of material to be cut is now placed on the table against the angle 130 and the lineof cut is located. Then, the cams are rotatedzto the positionas shown ,inFigure 2 and then will clamp the. sheet of material to becut tothe bench preparatory tojcutting. Then, either manually or through the medium of a'motor the cutter mechanism is pulled 'over the sheets Then, upon releasing the sheet from the bench, the device is-in readiness for a second cutting operation.

A suitable support such-asa hammer it is driven downwardly to the sheet on bothylines. Then, by means of the handle I36 which is mounted for rotation on the table and has a cam J38 thereon (Figure 19), engaging the bar 60, the twobars arelifted. The sheet of material is placed on the bench and. the long point (notice different length of cutters in Figure 1) is placed in the holes made bythe chisel and hammer. Next, the lever 36 is operated again whereby the two bars firmly mainntain the sheet of material in place. By operation of the drum the cutter carriage is moved across the sheet to be cut and there will-appear a clean cut corner. v

While there has been described and illustrated but one form of the invention, it is apparent that variations may be made without departing from the spirit of the invention. Accordingly; limitertion is sought-only in accordance with the scope of the following claims. a I l Having described'the invention, what claimed as new is: 1, 1. In a utting. apparatus, a table having a slot therein, a clamp disposed on said tableand including anzupper and lower rails, means: including a cam for "clamping one end' of said clamp on said table in releasable fashion by engagement: with and between said upper and lower rails, a carriage with a knife holder having a plurality of blades removably disposed therein, said carriage being mounted for slidingmovement on said upper and'lower railsg-said blades depending from said holder unequal amounts and lyingialong a line parallerto the line of travel of the carriage, the blade at'the front of the movable carriage being shorter than the next adjacent blade means for driving said carriage along said rails on said clamp to cut a sheet of material retained under said clamp, means including a spring and an elongated member resiliently holding the end of said clamp opposite said cam'o'n said table, at which'time the lower end of the rearr nost of said blades is dis posed insaid slot. I

2. In a cutting apparatus, a table having a top, a clamp disposed on said tabletop, said clamp including an upper and a lower rail, means holding said rails in spaced relationship with respect to each other, means disposed atone' end of said clamp and engageable with said rails between'said rails for releasably holding said clamp in such position as to hold an article on said table top, resilient means disposed at the other end'o'f said clamp fixing'said other end of said clamp to said table top, a carriage formingii tool holder slidably mounted on said clamp and between said rails, a plate having a slot therein and forming part of said carriage, said lower rail being disposed in said slot to prevent lateral separation of said carriage from said rails, means secured to said carriage for manually operating said carriage, blades carried by said tool holder and lying along a line parallel to the line of travel of the carriage, and the blade at the front of the carriage being shorter than the next adjacent blade.

JOHN P. BROWN.

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

Number UNITED STATES PATENTS I Name Date Smith Aug. 31, 1880 Hood Nov. 16, 1880 Girtanner May 6, 1890 Vzel July 4, 1905 Roesch et a1. 1 Aug. 17, 1909 McCay May 2, 1922 McGee May 15, 1923 Walvatne Oct. 7, 1924

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