US1041805A

US1041805A - Brick-pressing machine.

Info

Publication number: US1041805A
Application number: US36001607A
Authority: US
Inventors: Howard K King
Original assignee: CHAMBERS BROTHERS CO
Current assignee: CHAMBERS BROTHERS CO
Priority date: 1907-03-01
Filing date: 1907-03-01
Publication date: 1912-10-22
Anticipated expiration: 1929-10-22

Description

H. K. KING.

BRICK PRESSING MACHINE. APPLICATION FILED MAB. 1, 1907.

1,041,805. Patented 0ct.22, 1912.

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.H. K. KING. BRICK PRESSING MACHINE. APPLIOATION FILED MAR. 1, 1907.

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H. K. KING.

BRICK PRESSING MACHINE.

APPLICATION FILED MAR. 1, 1907.

1,041,805., Patented 0013221912.

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WITNESSES UNITED STATES PATENT OFFICE.

HOWARD K. KING, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR T0 CHAMBERS BROTHERS COMPANY, A CORPORATION OF PENNSYLVANIA.

BRI CK-PRESSING MACHINE.

To all whom it may concern:

Be it known that I, HOWARD K. KING, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and useful Brick-Pressing Machine, of which the following is a specification.

My invention relates to improvements 1n brick pressing machines.

My object is to provide means for presslng clots of clay or other materials expedltiously, and with maximum efficiency.

My invention comprises means whereby the acting plungers and the charging and discharging mechanism are all actuatedby the same continuously operating rotating element, said mechanisms operating relatively and capable of relative adjustment with respect to each other.

My .invention also comprises improved means for simultaneously charging the clots to the plungers and discharging the compressed bricks therefrom.

My invention also comprises improved means for adjusting the range of travel of one of each couple of plungers.

My invention also comprises improved means whereby the lower plunger is givena slight but powerful movement upward just as the upper plunger is completing its downward movement to compress the brick upon both sides simultaneously.

My invention also comprises means for adjusting the range of travel of the clot charging mechanism and also independent means for adjusting the initial position of the same.

My invention. also comprises means for storing and distributing oil to the surfaces of the clots.

My invention also comprises various improvements in details of construction.

Referring to the drawings :F igure 1 is a front elevation. Fig. 2 is a vertical section on lines 2, 2 of Fig. 1. Fig.- 3 is a horizontal section on lines 3, 3 of Fig. 2. Fig. 4 is a plan view of the toggle mechanism. Fig. 5 is a plan view of a portion of the mechanism for charging the clots and discharging the finished bricks, part being broken away to show the structure beneath. Fig. 6 is a vertical section of the structureshown in Fig. 5, Fig. 7 is a detail'of a portion of the mechanism for operating the lower plunger.

Specification of Letters Patent.

Patented Oct. 22,1912.

Application filed March 1, 1907. Serial No. 360,016.

Fig. 8 is a similar View showing the parts in dliferent positions. Fig. 9 is a fragmentary plan view showing the clots charging and. brick discharging mechanism in the initial position. Fig. 10 is a detail view similar to Figs. 7 and 8 showing the operating parts in still different positions. Fig. 11 is a sectional portion of the mechanism shown in Fig. 10. Fig. 12 is a sectional view of the brick and plungers in approximately the relative'positions at which the compression .of the brick begins.

Similar numerals refer to similar parts throughout the several views.

Referring to Fig. 2, the mold boxes 15 are suitably supported on the stationary framework 43 of the machine. The, hollow plungers 16 are mounted on the cross beam 17 suspended on the four vertical rods 18. It is to be noted that there are two mold boxes shown in the machine illustrated in the drawings, each provided with a pair of oppositely acting reciprocating plungers. These two pairs of plungers are actuated simultaneously from the same source of power. The adjustable connecting rods 26 of the upper plungers 33 are connected by the gear wheels 28 to insure a similar adjustment of the range of movement of said plungers. With this explanation it will be obvious that the descriptlon of one mold box and its pair of cooperating plungers and the actuating mechanism therefor will apply to either mold box and its cooperating plungers. The rods 18 are movably connected with members 19. In members 19 are journaled the eccentric portions 73 of the toggle member 21, which toggle member 21 is journaled at 20 in the stationary framework 43 of the machine. It will thus be obvious that the eccentric portions 73 cooperate with rods 18 in the support of members 19. The arms 22 of toggle member 21 are connected by the toggle pin 24 with the pitman 23, which pitman 23 is mounted on the middle of the crank shaft 34. The crank shaft 34 is provided with the gear wheel 35, which is driven by the pinion 36, mounted on shaft 37 upon which is also mounted the pulley 38, which is adapted to be driven from any suitable source of power. Connected with the toggle pin 24, is the other toggle ele ment, being a composite connecting rod '26, which comprises two threaded spllt sleeves,

. which is journaled in the stationary framefeed bar 44 and adjustably secured on said of the feed bar 44 is mounted the cross head sprocket wheel 59 through chain 60 and each threaded sleeve provided with a split i journal box and a connecting arm, intermediate member 27, provided with a right hand thread at one end and a left hand thread at the other end for cotiperating with said threaded sleeves to adjust the length 1 of said connecting rod 26. As above stated, the gear wheels 28 mounted on intermediate members 27 are coupled together to insure equal adjustment of each connecting rod 26. The clamp screws 29 operating in the threaded sleeves are adapted to tighten up said sleeves to prevent movement of member 27, when the proper adjustment is obtained. This connecting rod 26 which, as above stated, is connectedat one end with toggle pin 24, is connected at the other end with cross head 30, by the cross head pin 31. The cross head 30 is adapted to move in the vertical ways 32 provided in the stationary framework of the machine. To the cross head 30 is secured by bolts or other suitable means, the upper plunger 33. Also mounted on the crank shaft 34 is the bifurcated pitman 39, having its other end connected with the rock arm 40 by 'pin 41. The rock arm 40 is mounted, at its upper end, on shaft 42,

work 43. The lower end of arm 40 is pivotally connected with the feed bar 44 by the pin 45. Thesaid lower end of arm 40 is provided with three apertures 46, for adjustment of length of stroke of the feed bar. The block 47 to which arm 40 is actually secured, is movably mounted on the feed bar by the nuts 48. To the outer end 49, pivotally mounted to allow for the rocking motion imparted to the feed bar by rock arm 40. It is provided with a groove adapted to slide on the T-bar 50. This cross head 49 is provided with the two oppositely extending flat faces 51 projecting at right angles with the longitudinal extensionof the feed bar 44. Pivotally mounted on the feed bar 44 are the members 52 which are controlled by the rods 53 which are actuated by the springs 54. The carrying or off-bearing belt 55 is mounted on the pulleys 56 and 57 and the supplemental supporting rollers 58. The pulley 57 'is actuated through the sprocket wheel 61, which is mounted on the hub of gear 62 which is driven by gear 63 on shaft 37. The cam members 64 are rigidly secured to the rods 18 and are provided with cam faces 65 and 66 adapted to cooperate with the rollers 25. The beams 67 are secured to the upper ends of rods 18. The beams 68 are slidably mounted on the rods 18.' Between

beams

67 and 68 are mounted the springs 69. The bars 70 connect the rods 18 and normally rest on shoulders of said rods as shown in Fig. 8. The

through pitman 23.

purpose of bars 70 is to limit the downward movement on rods 18 of beams 68. Bars '70 also cotiperate in maintaining the rods 18 in the required relative position. A similar purpose is also served by the cam member 64.

The operation of my device is as follows :The clots 80 as indicated in dotted lines in. Fig. 9 are placed upon the feed table 71 in front of the cross head 49, when said cross head 49 is in the initial position as shown in Fig. 9. The clots are notonly placed in front of the cross head 49 and close against the same, but also close against the sides of the feed bar 44and upon the forward movement of the feed bar 44 the clots arebrought into true position upon the plungers 16'free of the margins of the mold boxes 15. The said feed bar is operated by the arm 40 and the crank34 through the pitman 39. The arm 40 has a slow reciprocating motion, relative to the operation of the other parts of the machine. It will be understood that motion is communicated by the same crank 34 to the

plungers

16 and 33. The upper plunger is moved by means of a toggle formed by toggle member 22, andconnecting rod 26 actuated by crank 34 At the same time and by the same movement of the crank 34, which causes the downward actuation of plunger 33, the two rollers 25 on toggle pin 24 coact with the cam faces 65 and 66 of the members 64 to cause the downward movement of rods 18 and cross beam 17 and the plungers 16 carried thereby, until the projections '7 2 encounter the upper sides of members 19. At the instant of engagement "of 72 and 19 the rollers 25 clear the

faces

65 and 66 as shown in Fig. 10. The movement tending to bring the arm 22 of toggle member 21 into alinement with the connecting rod 26 causes the upward actuation of members 19 due to the rotation of the eccentries 73 therein. From this it results that at the ending of the toggle movement, the members 19. being in engagement with theprojections 7 2 of members 68 cause the upward movement of rods 18 and consequently an upward movement of the lower plunger 16. This upward movement takes place simultaneously with the ending of the clownward movement of the plungers 33 so that a simultaneous final compression of the brick upon both faces is secured. The compression springs 69 operating between

members

67 and 68 serve simply to relieve the strain in case there should be a surplus of clay in the brick. i

The parts are arranged, proportioned and operated so that the plungers 16 move downwardly sufilciently to carry the clots entirely in the mold boxes 15 before the plumgers 33 engage therewith, as indicated in Fig. 12. It is to be understood that plungers 33 continue to descend traveling slightly 1,0a1,soa

faster than plungers 16 so as to cotiperate with plungers 16 in compressing the brick toward the end of its downward movement. The continued rotation of crank member 34 causes the further actuation of the toggle and the cam member to return the plungers to the initial position. Plungers 16 are brought with their top surfaces level with the top surfaces of the mold boxes 15, while plungers 33 have a continued upward movement suflicient to. clear them from the finished brick on said plungers 16. Simultaneously with the downward movement of the plungers above described, the feed bar 44 is moved backward between the said plungers 33, now in the depressed position. The spring actuated arms 52 engaging the said plungers 33, owing to the yielding of the spring pressed rods 53, will fold within the feed bar structure 44 and slide past said plungers 33, after which they will be returned to normal position by said spring controlled rods 53. The wings 52 and cross head 51 will now assume the initial position as shown in Fig. 9. In the next forward movement of feed bar 44, the wings 52 will discharge the compressed bricks from the plungers 16 onto the carrying-off belt 55, while the cross head 49 will deliver two more clots to plungers 1.6 as above described.

I roller 25 is in engagement with said end of cam surface 65.

The operation of the feed bar 44 is so related to the plungers 16 that the discharge of the bricks from the plungers 16 is completed, or well advanced, before the top surfaces of the plungers descend below the level of the top of the mold boxes 15, while the movement of the new clots onto the plungers 16 is completed, or well advanced, before the top surfaces of said plungers have descended below the level of the top of mold boxes 15.

It is'to be understood that while I show the wings 52 as a convenient means for discharging the compressed bricks onto the carrying-off belt 55, I do not limit my invention I to this specific device. In some cases the movement of the clots 80 onto the plungers 16 will serve to remove the bricks therefrom onto the carrying-off belt 55; but where the bricks are not sufficiently stiff to prevent being marred, it is desirable to have some positive mechanical means for removing the pressed bricks independently of the clots.

' It is to be noted that the parts are assembled, related and operated to secure the maximum efficiency, with the exertion of minimum of motive power. The maximum of compressing power is required toward the end of the downward stroke of plungers 33, and at the ending of the compression of the clots. This is when the

toggle elements

22 and 26 are approaching the straight line and when the leverage which can be exerted thereon by the thrust of pitman 23 is greatest. It therefore follows that the very greatest power that can be eX- erted upon plungers 33 fro-m a constant motive force is just as the said toggle elements approach the straight line. It is also to be noted that at the same moment that the plungers 33 are exerting their greatest power, the plungers 16 are completing their upward stroke, caused by themovement of eccentrics 73 in members 19. This also takes place when toggle arms 22 approach a straight line with connecting rods 26 and also approach a position at right angles with the thrust of-pitman 23. So that the movement of the eccentrics 73 cause the upward controlled by the usual hand valves. and

which drip the oil onto the table 71 and the oil rollers 78.

What I claim is 1. In a brick pressing machine, the combination of coiiperating plungers, a toggle, having its fulcrum mounted in the framework of the machine directly operating on one plunger, one arm of said toggle being pivotally connected with said fulcrum, movably supported slide rods for supporting the other plunger, a roller on the knee of the toggle and a coiiperating'cam-way connected with the slide rods for raising and lowering said last mentioned plunger.

2. In a brick pressing machine, the combination of cotiperating plunger-s, a toggle directly operating on one plunger, cam means operated by the knee of the toggle for operating the other plunger, and an eccentric at the fulcrum of the toggle journaled in a sliding box adapted to engage the supporting structure of said last mentioned plunger.

3. In a brick pressing machine, the-combination of a stationary framework, cooperating plungers, a toggle operating directly on one plunger, supporting rods for the other plunger, slidably secured in the stationary framework and operatively connected with the knee of the toggle, a movable member connected with the slide rod and having an independent limited movement with respect thereto, said mot'able member having an eccentric journaled therein, as and for the purpose specified.

4. In a brick pressing machine, the combination of a stationary framework, cooperating plungers movably connected therewith, a toggle, having its fulcrum mounted in the framework of the machine acting directly upon one plunger, one arm of said toggle being connected with said fulcrum, a roller at the knee of the toggle, a supporting frame for the other plunger movably connected with the stationary framework, said supporting-frame being provided with a cam-shaped channel or way .for cooperating with the roller during a portion of the movement of the toggle to cause the upward and downward actuation of said last mentioned plunger.

5. In a brick pressing machine, the combination of a stationary tframework, cooperating plungers movably connected therewith, a toggle directly operating on one.

plunger, a projection at the vknee of the toggle, a movable supporting frame for the other plunger, provided with a cam-shaped channel or way adapted to cooperate with the projection at the knee of the toggle during part of the movement of the toggle, an eccentric integral with and adjacent the journal of the fulcrum of the toggle and a journal box for said eccentric connected with the movable supporting frame of the plunger and having a limited independent movement therewith, the parts so proportioned and adjusted that the eccentric will cause a movement of the movable supporting frame after the projection on the knuckle of the toggle is free from its cooperating channel.

6. In a brick pressing machine, the combination of cooperating plungers, a toggle directly connected with one plunger, having a wheel or projection at its knee, cams connected with the supporting structure of the other plunger for cooperating with the wheel or projection, a sliding box having operative relationship with said last mentioned plunger, an eccentric on the fulcrum of the toggle, journaled in said sliding box, the parts so proportioned that the eccentric actuation shall be independent of the cam actuation.

7. In a brick pressing machine, the combination of cooperating plungers, a plurality of toggles for operating the same, means for varying the length of an arm of each toggle, and means for coupling the several adjusting means for securing an equal adjustment of all toggles.

8. In a brick pressing machine, the combination of a stationary framework, a mold box supported thereby, cooperating plungers movably connected therewith, a toggle for operating one plunger, a cam and cooperating projection connected with the knee of the toggle and a journal box and cooperating eccentric connected at the fulcrum of the toggle for causing and controlling the acturoller at the knee of the toggle for cooperating with the cam, and an eccentric, working independently of the roller and cam, for causing a final movement of said plunger toward the first mentioned plunger.

10. In a brick pressing machine,- the com-. bination of a mold box, cooperating plungers, roller and cam means for actuating one plunger in either direction and an eccentric, working independently of the roller and cam, for actuating the plunger in a direction opposite to that immediately caused by the roller and cam.

11. In a brick pressing machine, the combination of a mold box, cooperating plungers, a reciprocating member for feeding the clots to the mold box and discharging the bricks therefrom, said discharging means comprising a spring controlled arm adapted to encounter one of the plungers in the forward movement and to fold past the same and then assume the operative position, and means for operating said plungers and reciprocating member relatively.

12. In a brick pressing machine, the combination of a mold box, cooperating plungers, a toggle for operating one plunger, cam means for operating the other plunger, the members of the toggle adapted toapproach alinement toward the end of the compressing movement of the plunger actuated thereby, and an eccentric connected with a toggle element and operating independently of the cam means for reversing the movement of the other plunger, as said toggle ele ments approach alinement, so as to secure the maximum force exerted by said plungers and roller connection with the knee of the toggle and an eccentric connection at the fulcrum thereof, a crank shaft journaled in the upper middle portion of the stationary framework and a pitman connection between the crank-thereof and the toggle.

14. In a brick pressing machine, the combination of a stationary framework, a mold box supported thereby, cooperating plungers movably connected therewith, a toggle foractuating one plunger, a movable frame- Work for the other plunger having a cam and roller connection with the knee oft-he toggle and an eccentric connection at the fulcrum thereof, a rock arm connected with the stationary framework having a reciproeating feed rod connected at its free end, a crank shaft journaled in the upper middle portion of the stationary framework, said crank thereof being common to and operatively connected with the toggle and the rock arm.

15. In abrick pressing machine, the combination of a mold box, cooperating plungers and operatin means therefor, one of said plungers having a dwell in a position substantially flush-with the top of the mold box, and a continuously operated reciprocating member for feeding the clots to the mold box and discharging the bricks therefrom, said reciprocating member provided with projections adapted to engage the bricks upon the reciprocation of said member in one direction and to assume an inoperative position upon the reciprocation of said mem- 3 ber in another direction;

HOWARD K. KING. Witnesses:

MAE HOFMANN, HOWARD S. OKIE.