US3759366A

US3759366A - Device for cutting into slabs a block of not yet entirely solidified cellular concrete or another plastic material

Info

Publication number: US3759366A
Application number: US00229026A
Authority: US
Inventors: J Adank
Original assignee: Stork Amsterdam NV
Current assignee: Stork Amsterdam NV
Priority date: 1972-02-24
Filing date: 1972-02-24
Publication date: 1973-09-18
Anticipated expiration: 1990-09-18

Abstract

A device for cutting slabs from a block of a weak material, such as not yet entirely solidified cellular concrete, comprising a revolvable cage into which the block lying upon a trolley is introduced; the cage is than rolled sidewardly and turned over 90* such that the block is resting upon a second trolley locked in the cage after which one or more cutting wires are passed through the block; finally the second trolley with the slabs is discharged and the cage is turned back 90*, so as to repeat the cycle.

Description

States t [1 1 Adanlt Sept 18, 1973 DlEVllCE FOR CUTTTNG KNTO SLABS A BLOCK 01F NOT YET ENTIRELY SOLTDIFIED CELLULAR CONCRETE OR ANOTHER PLASTEC MATERIAL [75] Inventor: Johannes Antonius Marie Adank,

Vinkeveen, Netherlands [73] Assignee: Stork Amsterdam N.V., Amstelveen,

Netherlands 22 Filed: Feb. 24, 1972 21 Appl. No.: 22mm [52] US. Cl. 198/33 Al), 2l4/l'Q, 214/4632 [S 1] Int. Cl. B65g 47/22 [58] Field of Search 214/1 Q, l QG, 1 OF,

21,4/l46.5; 198/33 AD, 33 R 56] References Cited UNITED STATES PATENTS 9/1970 Thatcher; 214/1 Q v Y J 3325:2451

3,035,715 5/1962 Laing et al 214/] OF 3,655,079 4/1972 Kinnicutt, Jr. et al 214/1465 FOREIGN PATENTS OR APPLICATIONS 518,876 3/1940 Great Britain 214/1 00 Primary Examiner-Gerald M. Forlenza Assistant Examiner-Frank E. Werner Attorney-Alan l-i. Levine 57 ABSTRACT A device for cuttingslabs from a block of a weak material, such as not yet entirely solidified cellular concrete, comprising a revolvable cage into which the block lying upon a trolley is introduced; the cage is than rolled sidewardly and turned over- 90 such that'the block is resting upon a second trolley locked in the cage after which one or more cutting wires are passed through the block; finally the second trolley with the slabs is discharged and the cage is turned back 90, so as to repeat the cycle.

2 Claims, 2 Drawing Figures BACKGROUND OF THE INVENTION My invention relates to a device for the cutting into slabs of a block of not yet solidified cellular concrete or another plastic material, comprising a cage rotatable around a horizontal center line in which there is arranged two guides, at right angles to each other, extending in parallel with the center line, means for revolving the cage through 90 in order to bring alternately the one or the other guide in a horizontal position, and two feedand discharge conveyors arranged outside the cage for trolleys adapted to the respective guides of the cage, which conveyors in difierent psitions of the cage respectively adjoin and are flush with one of the guides.

A device of this type is known and the arrangement is such that a block of plastic cellular concrete is moved into the cage on a trolley in the position in which it has been cast whereupon the cage is turned through 90 and the block is transferred to another trolley on which previously cutting wires have been provided which thereupon are moved vertically upwards. The block cut into slabs in this way is subsequently moved out of the device by the latter trolley. It appears therefrom that two kinds of trolleys should enter and leave the device, while the trolley which brought up a fresh concrete block leaves the device in an empty condition and an empty trolley which has been moved into the device moves out of same loaded with the slabs of concrete.

In the known device the rotatable cage is stationary so that the stationary guides outside the cage on either side thereof may easily be a hindrance to each other. In case of this arrangement it has been found that in practice it is impossible to move an empty trolley for discharging a block, afterwards to be cut into slabs, into the device, while this block to be cut is ready on the guide-concerned on a trolley of the other kind. The period for cutting the blocks of cellular concrete is therefore substantially determined by the difficulties arising on feeding in and feeding out the trolleys.

. SUMMARY OF THE INVENTION It is an object of my invention to provide a device which has not the aforementioned drawbacks. For that purpose the feed-in and feed-out conveyors are arranged at some distance from each other and in a mutually parallel position, while the revolving movement of the cage is functionally coupled with a lateral movability of the cage in such a manner that the spacing of the two conveyors with respect to each other corresponds to the distance over which the case is displaced by a revolution through 90.

This feature is advantageous in that the guides for the trolleys arranged outside the rotatable cage are no longer an obstacle for each other and in that a trolley of the one type with a block of cellular concrete to be cut into slabs placed thereon can already take up its po-. sition beside the path of the rotatable cage, while the latter is in a position in which a slabbed block of cellular concrete is removed and an empty trolley of the other type is moved into the device. Due to this feature there is a considerable gain in time and also the construction of the guides can be simplified.

SURVEY OF THE DRAWINGS FIG. 1 represents in outline a side elevation of the device,

FIG. 2 is a diagrammatical plan view.

DESCRIPTION OF A PREFERRED EMBODIMENT In FIG. 1 the device is represented in full lines in the position I in which the block 3 of plastic cellular concrete is cut into slabs and thereupon in the slabbed condition is discharged in this position, whereas the device in the position 2 indicated by dash lines is in the position in which a new block 4 of cellular concrete is supplied. The device comprises an underframe 6 with wheels 7, disposed on a track 5 and on top of this underframe 6 two rollers 8, one of which being only visible in the position 1 of the device. The depicted device comprises further a cage with a visible supporting ring 9 having a centerline 10. On the non-visible side of the device a same supporting ring 9 is accommodated and the supporting rollers 8 can extend throughout the entire length of the rotatable cage with supporting ring 9.

In the cage two

guides

11, 12 are provided upon which the

trucks

13 and 14 are fitting lockably. .The

guides

11 and 12 can be moved by means of link mechanisms (lazy-tongs) 15 and 16 relative to the center line 1. As is known the guide for the trolley on which no block of cellular concrete in one of the end positions 1 or 2 is resting, is retracted by means of the link mechanism. The block 3 bears on the trolley 13 in theguide 11 while the guide 12 is retracted, so that the trolley 14 does not touch the block 3. In the position 2 the block 4 of cellular concrete bears on the trolley 14 in the guide 12, while the guide 11 is retracted so that the trolley 13 does not touch the block 4.

On the outer ring 9 is mounted a downwards directed lug 17 in which is provided an axial slit 18 directed towards the center line 10. In this slit is inserted a stationary pin 20 which by means of a console 19 is connected with the ground. The height of the pin 20 in relation to the length and the location of the slit 18 is such that when the underframe 6 is moved from the position 1 to the position 2 or vice versa, the lug does not touch the ground, so that the underframe 6 cannot move beyond the depicted extreme positions 1 and 2. A corresponding mechanism may be arranged atthe otherend (not shown) of the cage.

As is depicted, the guide 11 in the cage adjoins the tracks 21 and 21' of the feed in feed out conveyors, respectively, when the cage is in the position 1 according to FIG. 1, the arrangement being such that the trolleys 3 in this position of the rotatable cage can be moved from the rails 21, via the rails 1 1 to the rails 21-.

In this position 2 the cage is displaced in such a way and rotated through that the wider track 12 adjoins the

stationary guides

22 and 22 of the feed in-, feed out conveyor for the trolleys14, the arrangement being such that these trolleys can be moved from the rails 22, via the guide rails 12, to the rails 22'. t

The operation of the depicted device is clarified with reference to FIG. 2.

The blocks 4' of the plastic cellular concrete are supplied, via the guide 22, on the trolley 14" in the posiinthe operative position by means of the link mechanism 16. Moreover the link mechanism 15 is operated so that the empty trolley 13 concerned is moved up against the left lateral face of the block 4 of cellular concrete.

Subsequently the underframe 6 is moved until the rotatable cage has undergone a translation and a rotary motion and is in the position 1 in which the block of cellular concrete is in the position 3 and bears entirely on the trolley 13 whereupon the link mechanism 16 is operated. In a way not described herein the block 3 of cellular concrete is thereupon cut into slabs by moving cutting wires vertically upwards from the upper side of the trolley 13, whereupon the locking of the trolley 13 in the stationary guide 11 is released. Now the trolley 13 can be discharged via the rail 21. A trolley 13' with a slabbed block 3 of cellular concrete is depicted. Simultaneously with the discharge of this block of cellular concrete on the trolley concerned an empty' trolley 13'' is moved forward, via the rails 21, toward the stationary guide 11 in the rotatable cage. Thereupon the trolley in question is locked and the link mechanism 15 is operated, whereupon the stationary cage can turn back by moving the underframe 6. The rotatable cage is then again in the position 2. Thereupon the link mechanism 16 is moved upwards and the trolley 14 which is now empty is fed out in the position 14, while a new trolley 14" with a block 4' is moved forward and the cycle is repeated.

What I claim is:

' 1. A device for moving material, comprising:

a.. a rotatable cage having a horizontal axis of rotation;

b. a pair of trolley guides coupled to the inside of the cage at right angles to each other and extending parallel to the horizontal axis, each of the guides being movable toward and away from the axis;

c. an underframe having wheels and drive means, the

cage being supported by the underframe;

d. means responsive to the drive means for simultaneously revolving'the cage through 90 and rectilinearly translating the cage, in a direction perpendicular to the axis of rotation, between first and second horizontally spaced positions, whereby when the cage vis in the first position one of the guides is horizontally located and'when the cage is in the second position the other of the guides is horizontally located;

e. a first trolley conveyor having a feed-in partand an aligned feed-out part, the feed-in and feed-out parts each having an end for engaging flush with a different one of the ends of said one of the guides when the cage is in the first position; and

f. a second trolley conveyor having a feed-in part and an aligned feed-out part, the feed-in and feed-out parts each having an end for engaging flush with a different one of the ends of said other of the guides when the cage is in the second position.

2. A device for moving material, comprising:

a. a rotatable cage having a horizontal axis of rotation;

b. a pair of guides coupled to the inside of the cage at right angles to each other and extending parallel to the horizontal axis;

c. an underframe having wheels, drive means coupled directly to the wheels, at least a pair of rotatably supported rollers, at least one cage supporting ring, the ring being supported by the supported rollers and having a centerline coincident with the horizontal axis, said ring having a radially extending member in which there is located a radially extending slit; 1 i

d. a pin extending into the slit and fixed to ground, the pin being slidable along the length of the slit, whereby actuation of the drive means simultaneously revolves the cage through and rectilinearly translates the cage between first and second horizontally spaced positions so that when the cage is in the first position one of the guides is horizontally located and when the cage is in the second position the other of the guides is horizontally located;

e. a first conveyor having a feed-in part and an aligned feed-out part, the feed-in and feed-out parts each having an'end which is flush with a different'one of the ends of said one of the guides when the cage is in the first position; and

f. a second conveyor having a feed-in part and an aligned feed-out part, the feed-in and feed-out parts each having'an end which is flush with a different one of the ends of said other of the guides when the cage is in the second position.

'* l II!

Claims

1. A device for moving material, comprising: a. a rotatable cage having a horizontal axis of rotation; b. a pair of trolley guides coupled to the inside of the cage at right angles to each other and extending parallel to the horizontal axis, each of the guides being movable toward and away from the axis; c. an underframe having wheels and drive means, the cage being supported by the underframe; d. means responsive to the drive means for simultaneously revolving the cage through 90* and rectilinearly translating the cage, in a direction perpendicular to the axis of rotation, between first and second horizontally spaced positions, whereby when the cage is in the first position one of the guides is horizontally located and when the cage is in the second position the other of the guides is horizontally located; e. a first trolley conveyor having a feed-in part and an aligned feed-out part, the feed-in and feed-out parts each having an end for engaging flush with a different one of the ends of said one of the guides when the cage is in the first position; and f. a second trolley conveyor having a feed-in part and an aligned feed-out part, the feed-in and feed-out parts each having an end for engaging flush with a different one of the ends of said other of the guides when the cage is in the second position.

2. A device for moving material, comprising: a. a rotatable cage having a horizontal axis of rotation; b. a pair of guides coupled to the inside of the cage at right angles to each other and extending parallel to the horizontal axis; c. an underframe having wheels, drive means coupled directly to the wheels, at least a pair of rotatably supported rollers, at least one cage supporting ring, the ring being supported by the supported rollers and having a centerline coincident with the horizontal axis, said ring having a radially extending member in which there is located a radially extending slit; d. a pin extending into the slit and fixed to ground, the pin being slidable along the length of the slit, whereby actuation of the drive means simultaneously revolves the cage through 90* and rectilinearly translates the cage between first and second horizontally spaced positions so that when the cage is in the first position one of the guides is horizontally located and when the cage is in the second position the other of the guides is horizontally located; e. a first conveyor having a feed-in part and an aligned feed-out part, the feed-in and feed-out parts each having an end which is flush with a different one of the ends of said one of the guides when the cage is in the first position; and f. a second conveyor having a feed-in part and an aligned feed-out part, the feed-in and feed-out parts each having an end which is flush with a different one of the ends of said other of the guides when the cage is in the second position.