US815022A - Cut-off mechanism for brick-machines. - Google Patents

Description

PATBNTBII MAR. 1s, 1906. H. II. KING. GUT-OPF' MEcHANIsM POR BRIGII MACHINES.

PrIiIoATIoN FILED IAII. 1s. 1905.

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l PATENTED MAR; 13, 1906.

II. K. KING.

GUT-OFP MISUILIIIISIW FOR BRICK MACHINES.

ummm-10N FILED JAN. 1 8, 1905.

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, H. K. KING.

' CUT-OFF MEGHANISM FORBRIGK MACHINES.

APPLICATION .FILED JAN. 1a. 1905'.

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l wilma/.mao l K PATENTED MAR. 13, 1906.y

UNITED STATES HOWARD x. KING, OP PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO CHAMBERS BROTHERS COMPANY, A CORPORATION OE yPENNSYL- VANIA.

ClUT-OFF MECHANISM FOR BRICK-*MACHINESty vSpecification of Letters Patent.

Application lledJaual-y 18,1905. Serial No. 241,589.

Patented March 13, 1906.

To whom it may concern: Be 1t known that I, HOWARD K. KING, a

I citizen of the United States, residing at Philadelphia,`in the county of Philadelphia and State of Pennsylvania, haveinvented a newl and useful Cut-Oli Mechanism for Brick-Machines, of which the following is a specification.

My .invention relates to. cut-0E mechanism? for buck-machines, and 1s an improvement onthe mechanism shown and described in.

Letters Patent to lCyrus Chambers', Jr., N o.

v562,204",lated May 3, 1887, and is also mi improvement on lthe mechanism shown in patent to/me, No. 612,249, dated October 11,; l

ating means for the cut-0E and being regulated by the speed of travel of the bar insures the various required relative speeds of the cut-0H. -1

My invention also comprises improved means for operating the movable support or delivery-plate, which is positioned beneath vthe continuous bar, close.to,but just beyond,

the point of severance of the same. l

I accomplish my object by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of the cut-OHy mechanism. and associated parts with other parts of the machine broken away. Fig; 2 is a'front elevation Of same with the housing containing the cams and cam-wheels in section. Fig. 3 is a side elevation, on an enlarged scale, of the cut-off wheel, showing the supporting mechanism of the movable delivery-plate. Fig. 4 is a detail of this same sup.- porting mechanism in a different position.

Similar numerals refer to lsimilar parts throughout the several views. Referring to Fig. 1, 1 represents the continuous bar of clay traveling from the die as shown in patent to Chambers above referred to. This bar travels upon the regulatingbelt 2, which is supported upon a series lof rollers 3 and returns about the measuringous rotation.

pulley 4, mounted on shaft 5. (See Figs. 2 l

and 8.)` Upon the same shaft 5 is mounted the pulley 6, which is connected by the helping-belt 7 with wheel 8, which is drivenfrom any suitable source of power. The tensionpulley 9, carried on lever 10, is adapted to be operated by thehand-lever 1 1 to regulate the tension of said helping-belt, so that the required amount of power may be derived from wheel 8 necessary Ato cooperate with the power exerted by the moving bar 1 upon the belt 2 to operate the mechanism hereinafter described.

- Above the .traveling bar 1 is suitably lmounted the wire cut-OH similar to the de vicedescribed in the patents above referred to. This cut-off comprises a wheel or hub 15, having equidistant radial arms or spokes 16, to the free `ends of which are secured elastic steel bows 17. To the-outer extensions of the bowsv are secured the cut-off Wires 18. The hub 15` is mounted` on the shaft 19, which is suitably supported in the journal 2O,l secured to the stationary parts of themachine.v Upon the opposite endof this shaft 19 ismounted the roller-wheel 21, provided on one side thereof with a series of equidistant rollers 22, 22a, and 22h and on the other side'with a series of equidistant and symmetrically-arranged rollers 23, 23a, and 23h. Upon the shaft 5 are also mounted the two cams 24 and 25, adaptedv to cooperate with the rollers 22, 22a, and 22h and 23, 23a, and .e 23h, respectively. These cams 24 and 25 `are preferably in one piece orare both keyed to the shaft 5, and therefore'have a simultane- The form of each cam is such with respect to the position of its coperative rollers that by the rotation of said cam.

through approximately one-half of its circumference the roller-wheel' 21, is caused to travel in the direction of the arrow in Fig; 1. For example, the cam 24, as shown in Fig. 1,

is traveling in the direction of the arrow upon said cam andis operating upon roller 22a to force the wheel 21 in the directionof its arrow. At the same time wheel 22b is traveling down the inclined periphery of cam 24 exactly as 22a is traveling up the opposite inoline of said periphery. From this it results that while wheel21 is positivelycarried forward by the coperation of cam 24 and Wheel IOO 22EL until the highest point of the incline of said cam is reached the cooperation of 22b with cam 24 positively prevents any backlash of said wheel 21 thereby securing a ositive relationship between the cams an the cooperating wheels throughout the entire rotation. Before wheel 2.2a reaches the highest point of incline of cam 24 the periphery of cam 25, which is exactly symmetrical with cam 24, has come into engagement with wheel 23a, thereby coperating with cam 24 and wheel 22a in causing the forward movement of wheel 21 until said wheel 22a has reached said highest point of incline of cam 24. The cooperation of cam 25 and wheel 23a then continuesthe forward movement of wheel 21 until after the cam 24 has made a suflicient rotation to come into a similar operative relationship with wheel 22h, and thus is repeated the cycle. The taking up of the propelling-work by the one cam before the other has ceased to propel wheel 21 and the constant cooperation of the rollers with the downward slope of said cams while the upward slope is pushing the wheel 21 around result in a smooth and positive actuation of wheel 21 without jar or backlash.. The shape of the cams provides for the desired varying speed of rotation of shaft 19 with respect to the speed of travel of the bar, said speed of rotation being at all times controlled by the movement of the bar 1. The wire cutters being rotated by the shaft 19, it follows that the above-described actuation of said wheel 21 results in such actuation of the cut-off as to secure a straight cut of the bar 1 into bricks, the angle of cut depending upon the shape of the cams 24 and 25. The driving of the cut-off wheel by the cams instead of driving the cams by the cut-off mechanism, as was done in the devices shown in the patents above referred to, obviously results in a great economy of power and a smoothness of operation.

The im rovement in the movable deliverypla-te 30 or supporting the bar of clay close to the point of severance thereof by the wire is as follows: This delivery-plate 30 is carried by the arm 31, which 1s keyed to the shaft 32. To this shaft 32 is also keyed the arm 33, which is adapted to coperate at its free end with and be operated by the cam 34, which is mounted and operated by shaft 5. Heretofore this mechanism has been so constructed that immediately upon the completion of the cut of the bar 1 the form of cam 34 was such as to permit immediately the full drop of arm 33, so as to depress plate 30 to clear its obstruction to the travel of wire 18. The objection to this operation, however, was that such a drop of plate 30 as was necessary to clear the wire was below the plane of the carrying-0H belt 35, and as only a portion of the severed brick had been delivered thereto the depression of the deliverylate below this plane caused the brick to tilt up so that its forward upper corner, especially when the brick is unusually thick, was encountered by one of the neighboring cut-off wires and damaged thereby. My improvement consists in the formation of the cani 34 as shown in Figs. 3 and 4-that is, with a preliminary depression 37, which permits the member 33 to drop sufficiently to bring the under side of the brick into the plane of belt 35. This momentary resting or dwell in the position shown in Fig. 3 permits the brick to get safely started on belt 35, when the further travel of cam 34 brings the end of member 33 into the further depression 38 of said cam to secure late 30 in the final depressed position-t iat is to say, that the cam 34 is so shaped as to cause the movement of the plate 30 to and through the three positions, with the necessary dwell in each, as follows: to the position in which the late shall receive the severed brick, being t ie position shown in Fig. 1, the plate remaining 1n this position until the brlck has been entirely severed from the bar, then to the position in which vthe plate delivers the brick to the carryingbelt 35, remaining in said position lon r enough for said brick to get started on sai belt, and then to the position in which the plate will clear the moving cut-off Wire, remainin in said position until the wire has safely c eared,then back to the iirst position.

What I claim is- 1. In combination with a brick-machine comprising means for forming and moving a continuous bar of plastic material, cam-operated wire cut-off mechanism controlled by the travel of the bar.

2. A cam o erated and controlled wire cut-0H for bric i-machines controlled by the travel of the clay bar.

3. In combination with a brick-machine comprising means for forming and moving a continuous bar of plastic material, a cut-off device comprising cut-off wires and means for moving the same across the path of travel of the bar, said moving means comprising a cam controlled by the travel of the bar.

4. In a brick-machine, the combination of a cut-0H wire adapted to move across the path of travel of a horizontally-moving bar to sever the same into brick lengths, and a cam for so moving said wire relatively to the moving bar as to cause a straight cut of said bar.

5. In a brick-machine, the combination of a cut-off wire adapted to move across the path of travel of a horizontally-moving bar to sever the same into brick lengths, and camoperated means controlled by the moving bar for so moving said wire relatively to the noving bar as to cause a straight cut of said 6. In combination with a brick-machine comprising means for forming and moving a contmuous bar of plastic material, rotary IOO IIO

comprising means for forming and moving av continuousv bar of plastic material cut oif, mechanism therefor, comprising cut-off Wires and supporting structure therefor, mounted upon a rotatable shaft, and a cam controlled forming and moving by the movement of the bar, for causing and controlling the rotation of said shaft.

9. In combination With a machine forforming and moving a continuous bar of plastic material, a measuring-'pulley having operative relationship therewith, a rotatable shaft,

a cut-off Wire and supportin structure therefor mounted upon said sha, and a cam rotating With the measuring-pulley for causing and controllin the rotation of said shaft.

10. In combinationy with a machine for tic material, a regu ating-belt moving there- With, a rotatable shaft, a cut of Wire, a supporting structure therefor mounted u on said shaft, acam for causing and controlling the rotation of said shaft, and means Whereby the rotation of the cam is controlled by:

the travel of the measuring-belt.

11. In combination` With a machine for forming and moving acontinuous bar of plastic material, a rotatable shaft', a cut-O Wire, a` supporting structure therefor mounted upon said shaft, a plurality of rollers mounted upon said shaft symmetrically positioned and at a distance from the shafts axis and a cam, having a rotation relative to the travel of the bar, for coperating'with said rollers for causing the rotation of. the shaft.

' 12. In combination with a machine Vfor forming and moving a continuous bar of plasa supporting structure therefor mounted up on said shaft, a roller supporting structure mounted u on said shaft provided with tWo series of rol ers one on each side thereof 'and a cam, having a rotation relative to thetravel with a brick-machine v a continuous bar of plasof the bar, for each series of rollers for coperating therewith for causing the rotation of the shaft.

13. AIn combination with a machine for forming and moving a continuous bar of plastic material, a rotatable shaft, a cut-off Wire, a supporting structure therefor, mounted upon said shaft, 'a roller-supportin structure mounted u on said shaft rovide with two series of ro 1ers one on eac side thereof, and a cam, having a rotation relative to the travel of the bar, for each series of rollers for coperating therewith for causing and controlling the rotation of theshaft.

14. yIn combination Witha machine for forming and moving a continuous bar of plastic material, a rotatable shaft, a cut-off Wire, a supporting structure therefor mounted upon said shaft, means for controllin the movement of the cut-offl Wire relative y to the movement of the continuous bar, a movable delivery-plate and cam-operated means for moving it, With the required dwell in each position, through three different positions.

15. In combination with a machine for forming and moving a continuous bar of plastic material, a rotatable shaft, a cut-off Wire, A

a supporting structure therefor .mounted upon said shaft, means for vcontrolling the movement of the cut-off Wire relatively to the movement of the continuous bar, a movable delivery-plate-adapted to be shifted from one osition to another, With the required dvvelFin each, through three different positions With each cut-01T operation and cam means for causing such operation.

16. In combination with a machine for forming and moving a continuous bar of plastic material, a cut-off Wire and means for causing thesame to cross the path of travel of said bar, a carry-off belt for the severed sections of said bar, a delivery-plate adapted tov be moved from one to the other, With the required ldwell in each, of the following positions, the position in Which first it receives the severed section, then delivers the severed section to the carry-off belt, and then drops out of the path of travel of the cut-off Wire,

and cam-operated means for causing such actuation.v y

v HOWARD K. lKING.

Witnesses: l

MAE I-IoEMANN, GEORGE W. WILGUs.

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