US1533296A - Means for loading and unloading kilns or stoves - Google Patents

Description

April 14, 1925. 1,533,296

.M. ALEMANY I MEANS FOR'LOADING AND'UNLOADING KILNS 0R STOVES Filed April 8, 1924 3 Sheets-Sheet 1 M. ALEMANY IBANS FOR LOADIN AND UNLOADING KILNS OR STOVES Filed April 8, 1924 3 Sheets-Sheet 2.

April 14, 1925. I 1,533,296

M. ALEMANY MEANS FOR LOADING AND UNLOADING KILNS 0R STOVES Filed April 8, 1924 3 Sheets-Sheet 5 iii Patented Apr. 14, 1925,

UNITED STATES MARIAN'O' ALEIVIANY, OF CENTRAL HERSHEY, CUBA.

. MEANS FOR LOADING AND UNLOADING KILNS OR STOVES.

Application filed April 8, 1924. Serial No. 705,144.

1 '0 all whom it may concern Be it known that I, Manmno ALEMANY, a citizen of the Republic of Cuba, and resident at Central Hershey, Province of Man tanzas, Cuba, have invented certain new and useful Improvements in Means for Loading and Unloading Kilns or toves, of which the following is a specification.

This invention relates to kilns or stoves in general, and particularly to the kilns or stoves used for drying bricks, and its object is to provide mechanical means for loading and unloading at a time a plurality of boards or shelves holding the bricks-so that instead of handling each board or shelve at a time one by one, there are handled in a single operation different nmnbers of boards or shelves carrying a large quantity of bricks, whereby it is saved a lot of time in the operation of loading and unloading the kilns or stoves, thus saving labor.

The invention is described with reference to the figures of the annexed drawings, in which:

Fig. 1 is a perspective view of a bridgecar' which serves for carrying and loading and unloading the material.

Fig. 2 is a longitudinal vertical section of a kiln or stove provided with the means for loading and unloading which form the subject matter of this invention.

Fig. 3 is an upper plan view of the bridgecar.

And Fig. i is a cross vertical section of the kiln or stove.

. In the drawings, 1 indicates a kiln or stove of the so called tunnel-kilns, on whose side walls are fixed brackets 2 spaced apart from each other in vertical and horizontal rows, and which support longitudinal supporting beams 3 fixed to the same, and which beams in turn support plane plates 4 adapted to carry bricks which plates hold rigid on account of being formed of a metallic plate 4 to which are riveted at its lower face three channelled plates of inverted U shape 5 and each transversally arranged one at each end and another one at the middle point of its length (Fig. 1) which plates are designed to bear by its lower edges on the upper base of said beams The rigid plates 4 are loaded and unloaded on beams 3 by means of a car on whose platform 6 is mounted a circular platform 23 gyratory on a vertical stem 24 which passes through both platforms and presents a head which acts as a butt against the platform 23, it being held in turn by a nut 26 screwed at its inner threaded end and which presses against the stationary platform 6, the gyratory platform 23 being somewhat spaced apart upon the stationary platform 6, by hearing on a plurality of balls 27 set on annular grooves 28 and 29 respectively formed in opposite position in both platforms 6 and 23. On the gyratory plat form 6 there are arranged near the ends of a diameter two standards 7 separated from each other a distance which is less than the space of separation between two opposite longitudinal beams 3 and which standards are of metal and of channel or U-shaped section, each one being reinforced by means of a side oblique plate 8 and an end oblique plate 9 which connect its upper ends with the gyratory platform 23 of the car, there being also small angular plates which connect the lower ends of the standards 7 with the gyratory platform 23. The said standards I serve as guides at its inner side respectively to two beams of double T section 10 which are connected together at different height by two horizontal bars 11 and 12 which pass through slots 13 formed in the inner side portions of the standards 7 and which limit the upward and downward motion of the vertical beams 10. On the web of these beams 10 there are fixed at a height from each other which is the same as the vertical distance between each two longitudinal beams 3 of the kiln 1, a plurality of horizontal arms it which are relatively very long and which have no bearings at their free ends and are re-inforced at their points of connection by curved braces 15, said arms 14 having their free ends slightly curved downward for aiding the arrangement on the same of the rigid plates 4.

Underneath the bar 12 which connects the vertical beams 10 there is cooperating with the same for raising said beams 10 together with arms 14:, the hook shape end 16' of a lever 16 which is pivoted at 17 on a mounting or standard 18 fixed on the gyratory platform 23 at one end of the same. This lever is used as a hand lever for raising or lowering the frame formed by the vertical beams 10, the horizontal bars 11 and 13 and arms 14.

The wheels 19 of the car are provided with flanges so as to slide on the rails 20 of a track arranged on the ground or floor of the kiln or stove 1. Plates a are provided at its lower face with two pairs of angular plates 21 which form butts for side retention against the sides of arm 1%, so that plates 4 may not slide transversally to the kiln or stove.v 7

'The operation ofthe means for loading and unloading the kiln is as follows: plates 4 are loaded by hand with the bricks 22 or any other material to be treated and plates at are placed on each pair of arms 14 ar ranged on the same horizontal plan, which operation is effected outside of the kiln or stove], and the platform 23 is'turned conveniently on the car 6 for aiding the load. lVhen thefree end of lever 16 is pushed down, whereby its hook shaped end 16 raises the sliding frame formed by the vertical beams lO With the transverse bars 11 and 12, the standards 7 acting as guides, having previously arranged the height of the arms 1% from the ground sothat on pushing downwards the free end of lever16, the arms.

14 with the rigid plates at carried thereby, will be disposedata distance from the floor which is higher than that of the longitudinal beams of kiln 1; In this condition, the'car is run on the track into the kiln 1 until the rigid plates at with the load of bricks may come above and separated from the longitudinal beams 3, as indicated in dotted lines in Fig. 2 of the drawings. Then the free end of lever 16 is let loose and the lever falls at its hook end 16 actuated by the weight of the sliding frame 10, 11 and 12 and of arms 14: with the plate aand the load of bricks 22, until the plates a come to rest on the longitudinal beams 3 of kiln 1. Then the car is taken out of kiln 1.

When the treatment of bricks in the kiln has been completed, the car is again introduced with lever 16 normally'down so that arms 14: may pass underneath the plates 4:

and when they are underneath the same,

then is pushed down the free end of lever 16 to raise up again the arms 14 raising the'plates 1 of the longitudinal beams 3, and in that position the car is pushed out of the kiln 1 wnere the plates 1 of the car are unloaded. V

. With these means of loading and unloading, one single man can carry and unload 120 bricks on four plates 1.

Having-thus described the invention it is to be understood that the details of construction of the car frame can vary without altering the essential character of the invention, which is as set forth in the appended claim.

What Iclaim is:

Improved means for loading and unload ing kilns which comprises a car provided with two standards of channelled section inside of which are slid-able vertical beams connected by cross bars and from which project longitudinally pairs of load carrying horizontal arms the arms being arranged at a vertical distance from one another which isthe same as that which separates the longitudinal beams of the kiln, and means to raise and lower said vertical beams and said pairs of horizontal arms.

In witness whereof I affix my signature MAniANo ALEMANY.

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