US1912742A - Feed supply system for coal bins - Google Patents

Description

9 June 6, 1933 D, VAN LAW 1,912,742

FEED SUPPLY SYSTEM FOR COAL BINS Filed Jui 5, 1952 INVENTOR.

ATTORNEYS Patented June 6, 1933 UNITED STATES PATENT OFFICE IvIESNE ASSIGNMENTS, TO A CORPORATION OF COLORADO SUPPLY SYSTEM FOR COAL BINS Application filed. July 5,

This invention relates to a supply system for coal bins and more particularly to means for supplying finely divided coal to bins used in automatic fueling: apparatus for furnace and the'like." It is an object of the invention to provide a simple system for supplying coal to a bin of the above described character in pre-measured quantities. A further objectis to supply said quantities through the intermediary of portablecontaine1--units',"a'nd another object is to provide 'in connection with said units, closures which are removed from the mouths of the units'after'th'e latter have been applied to the bin. Still otherobjects reside in details of construction and novel combinations and arrangements ,of parts as will fully appear in the course of the following description.

In the accompanying drawing in the several views of which like parts are similarly designated, Figure 1 represents a partially broken side-view of an automatic fueling apparatus to which the present invention is applied, Figure 2 is a plan-view of the bin of the apparatus, Figure 3 is a section on the line 3-3, Figure l, drawn to an enlarged scale, Figure 4 is an enlarged sectional view of the upper-portion of one of the containerunits hereinabove referred to, and Figure 5 is a section taken on the line 5-5 of Figure 4.

Referring further to the drawing, the fueling apparatus shown in Figure 1 comprises a bin 5 having in its bottom portion, an endless feed chain 6 by means of which the contents of the bin are gradually moved to the fire box of a furnace or the like through the medium of a direct-firing fueling unit.

The feed-element of the fueling-apparatus is not a part of the present invention but has been shown and described in a separate application for patent, Serial No. 620,872.

The bin is closed at its top by a cover-plate 8 provided with a plurality of supply-holes 8a, and the coal is supplied to the bin through these holes by means of containers 9. Each container consists of a cylindrical can having a tapering neck 10 leading to a short cylindrical mouth 12.

1932. Serial No. 620,873.

Handles l3 exteriorly of the neck facilitate-manipulation of the container.

The cylindrical mouth of the container has two or more exterior slanting ribs 14 cooperating with corresponding interiorly projecting beads 15 of a flanged cap 16 Which closes the mouth.

The ribs and the beads provide a multilated screw-thread which holds the cap in place and permits of the application or removal of the cap by partial rotation of the same. The cap has a laterally projecting, apertured lip 17 and each feed-hole of the cover plate of the bin has a lateral notch 18 for the passage of the lip 17 when the mouth of the can, with the cap in place, is inserted through the hole.

Inside the bin in alinement with the notches of the several holes, are vertical pins 19 which enter the apertures 17a of the lips when the mouths of the cans are inserted through the holes as stated hereinbefore.

'Rotatably supported on the cover plate, within the holes are seats made of rubher or other resilent material each serving as a rest for the tapering neck of the can and providing a dust-proof closure when the can placed upon the bin in an inverted position with its mouth inserted in one of the holes.

Having thus described the mechanical construction of my invention, its operation will be readily understood. The coal is supplied to the customer in measured quantities by means of the container-units. The coal-merchant brings the filled containers to the furnace of the customer, removes empty units and replaces them by the filled ones.

In doing this, he places the container with the mouth-closin g cap in place, in an inverted positionupon the seat around the hole. In this position of the container, its mouth is inserted into the bin through the hole and the lip of the can is placed around the upright pin. Rotation of the cap is thus prevented, and if subsequently a partial rotation is given to the container outside the bin, the spiral ribs of its mouth are disengaged from the respective beads of the flange of the cap, thereby permitting the cap to fall away from the mouth of the can by its own weight and that of the contents of the can. Owing to the engagement of the lip of the cap with the upright pin inside the bin, the cap after falling away from the mouth of the can, will remain suspended from the pin as shown in Figure 3, so that after the can is removed from the hole, the cap may likewise be replooved by inserting the hand through the ole.

It is to be understood that variations in details of construction may be resorted to within the scope of the invention as defined in the hereunto appended claims.

What I claim and desire to secure by Letters Patent is:

1. In a fuel-supply system of the character described, a cover-plate having a supply-hole, a portable container having a mouth insertable through the supply-hole, a removable cap for the mouth of the container, and means to effect removal of the cap, by rotary movement of the container, outside the hole.

2. In a fuel-supply system, a cover-plate having a supply-hole, a portable container having a mouth insertable through the hole, a screw-cap on the mouth, and means for holding the screw-cap against rotation with the container in a position in which the mouth is inserted through the hole, whereby the cap may be removed by rotary movement of the container.

3. In a fuel-supply system, a cover-plate having a supply-hole, a portable container having a mouth insertable through the hole, a screw-cap on the mouth, having an apertured lip, and a fixed pin disposed to engage the lip by insertion of the mouth through the hole, whereby to hold the cap against rotation.

4. In a fuel-supply system, a cover-plate having a supply-hole, a portable container having a mouth insertable through the hole, a screw-cap on the mouth, having an apertured lip, and a fixed pin disposed to engage the lip by insertion of the mouth through the hole, whereby to hold the cap against rotation, the pin being adapted for suspension of the cap after separation from the mouth of the container.

5. In a fuel-supply system of the character described, a cover plate having a supply-hole, a portable container having a mouth insertable through the supply hole, a removable cap for the mouth of the container, a seat for the container permitting of a determinate movement of the container in place, and means to effect removal of the cap by holding it from following the movement of the container relative to the seat and to retain the closure for future use after its removal.

6. In a fuel-supply system of the character described, a cover-plate having a supply-hole, a portable container having a mouth insertable through the hole, a closure for the mouth,

a seat for the container permitting of a determinate movement of the container in place, and means for opening said mouth, with the container in a position in which the mouth is in communication with the hole, by holding the closure from following the movement of the container relative to the seat.

7 In a fuel-supply system of the character described, a bin having a supply-hole and a seat adjacent thereto, a portable container 1 movably supported on the seat and having a normally covered mouth adapted to be placed in communication with the bin by means of its supply-hole, and means for uncovering the mouth of the container by a determinate movement of the container in place relative to the seat.

8. In a fuel-supply system of the character described, a bin having a supply-hole, a loose portable container separate from the bin, having a mouth for the discharge of its contents in an inverted position, the bin having a seat for the loose, support of the container in a position in which. its mouth is in communication with the binby means of the supply-hole, a closure for the mouth of the container, and means to efiect a movement of the closure by movement of the container in place, whereby to uncover the mouth of the container.

In testimony whereof I hereunto aiiix my signature.

DURBIN VAN LAW.

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