US2472308A - Segmental chute for loading materials - Google Patents

Description

June 7, 1949. J. OHALLORAN 2,472,308

SEGMENTAL CHUTE FOR LOADING MATERIALS Filed Feb. 10, 1947 2 Sheets-Sheet l Jam es 0 '[z'aZZoran I IN VEN TOR.-

fierney.

June 7, 1949. J. OHALLORAN SEGMENTAL CHUTE FOR LOADING MATERIALS 2 Sheets-Sheet 2 Filed Feb. 10, 1947 James OHaZZMan INVENTOR.

Patented June 7, 1949 SEGMENTAL CHUTE FOR LOADING MATERIALS James OHalloran, Quebec, Quebec, Canada, as-

signor to Anglo-Canadian Pulp and Paper Mills Limited, Quebec, Quebec, Canada, a corporation of Quebec Application February 10, 1947, Serial No. 727,644 In Canada December 17, 1946 Claims.

This invention relates to materials loading chutes, and more particularly to chutes adapted to guide and direct pulpwood or the like into a stowage space.

An object of the invention is to provide a loading chute for pulpwood and like materials which is adapted to receive such materials from a fiume or conveyor and to distribute it efficiently in a stowage space, such as a ships hold, so that maximum use is made of such space.

The invention resides generally in the provision of a segmental chute composed of a plurality of sections connected in overlapping relation to each other for relative horizontal and vertical movement, in association with hydraulic means for propelling materials through the chute.

The invention will be described with reference to the accompanying drawings, in which Figure 1 is a sectional elevation of the chute,

Figure 2 is a plan view,

Figure 3 is a partial end elevation,

Figure 4 is an enlarged detail View in section of the associated hydraulic means,

Figure 5 is an enlarged end elevation of the hydraulic means,

Figure 6 is an enlarged sectional elevation of the connections between the sections, and

Figure '7 is an enlarged bottom plan view showing the section connections.

The chute is illustrated as associated with a fiume I, such as is adapted for conveying pulpwood, but it will be understood that it may be employed in conjunction with other types of conveyors, mechanical or otherwise.

The chute includes a stationary section 2 mounted on any suitable frame 3 and comprising a flat bottomed straight-sided member downwardly inclined, as shown, and having its mouth portion curved as at 4 to promote ease of fiow from the conveyor thereinto. If used in conjunction with a fiume, the bottom of the section 2 is formed as a grating 5 which permits discharge therethrough of the materials conveying water of the fiume. The first section 6 of the segmental portion of the chute overlaps the outer face of the end portion of the section 2 and is hinged thereto for relative vertical swinging movement by means of a piano type hinge having portions l fixed to a bar 8 mounted on the end of section 5 and portions 9 fixed to a bar It pivotally mounted on the under side of section 2, a rod H passing through the portions 1 and 9 providing the pivotal connection. The pivotal mounting of the bar It is effected by means of a pin l2 carried by the bar and extending upwardly into a fitting l3 mounted on section 2 and to which the pin is secured as by a nut 14. This pivotal connection between sections 2 and 6 permits relative horizontal movement of section 6.

Each of one or more additional segmental sections [5 overlaps the outer end face of the adjacent section and is connected thereto for relative horizontal and vertical movement. As shown in Figures 6 and 7, a piano type hinge provides for the vertical swinging movement and comprises a bar #6 fixed to the under side of the outer section having portions ll pivotally engaging a rod 3 and a bar I9 pivotally mounted on a pin 28 carried by the inner section and having portions 2| pivotally engaging the rod it. The pivotal mounting of the bar IS on the pin 26 provides for the horizontal swinging movement.

The hydraulic means for propelling materials along the chute comprise a jet, or preferably a pair of jets 22 carried by the section 6 and located at the outlet end of section 2. The jets are mounted on a cylindrical header 23 suspended by means 24 from the lower surface of section 6 and curve upwardly from the rear side of the header through the bottom of the section and then forwardly along the upper surface of the bottom to a point adjacent the end of section 2. The under sides of the jets are spaced a slight distance above the bottom of the chute section to prevent undesirable spreading of water issuing therefrom and consequent loss of energy.

The jets are of flattened oval shape to provide a widened stream of water issuin therefrom. A protective cover plate 25 is provided for each jet. The line of travel of water from the jets follows the same general direction as the axis of the section 6, but each jet is set so that the streams of water therefrom converge slightly towards a point slightly short of the end of the final section in the chute. Such convergence of the jets provides better acceleration of the materials than if the streams of the jets were parallel throughout the travel thereof.

Water under pressure is supplied to the jets through a pipe 26 leading into a header 2? which is connected to header 23 by means of a plurality of flexible hose connections 28 which provide the necessary flexibility for movement of section 6.

Referring to Figure 3, section 6 of the chute has a substantially flat bottom and vertical sides where it overlaps the section 2. From that point downwards, the cross section of section 6 and succeeding sections l5 transforms uniformly to a rounded bottom with rounded and higher sides. The, cross section of the chute also tapers inwardly towards the discharge end so that the cross section at the end is approximately parabolic in shape. The chute is so designed since the Wood or other materials tend to roll towards the center. of it which. gives the-water jets the maximum opportunity to strike and accelerate the materials.

Any suitable means may be provided to impart vertical and horizontal movement to the chute. As shown, cables 29 connected to the-end-of the chute may be employed to raise and lower the chute and cables 30 also connected to the end of the chute may be employedtoswing-the same from side to side. Any suitable powermeansmot shown, may be employed to actuate the cables.

The chute described is particularly effective in directing a stream of pulpwood or theilike .under pressure to various points as desired to efficiently stow the same.

What is claimed is:

1.-A loading chute for materialscomprising a plurality of overlapping chute sections,.and'means connecting the overlapped sections for relative vertical and horizontal swinging movement comprising. a barfimounted oncthe. rearward end of each section, hingeportions carried by the bar, a second-bar pivotally carried ,bythe forward end of the adjacent overlapping section. andhaving complementar hinge portions,- and arod pivotally engaged by all said hinge portions.

2. A loading chute for materials comprising a plurality of overlapping chute sections, means pivotally connecting eachpair. of overlapped sections for relative vertical and horizontal swinging movement, and hydraulic means carried by'thc first section ,for imp'elling materials through the chute, the entrance endpf the chute being in cross section relatively wide with a substantially fiat bottom portion and vertical side portions, the

outlet end of the chute being'in cross-section relatively narrow. with curved bottom and side portions defining a substantially [parabolic shape, said chute transforming gradually in shape from the entrance end to the discharge end.

3. A loading chute for materials'comprising a plurality of overlapping chute sections, means pivotally connecting each pair of overlapped sec- 4 tions for relative vertical and horizontal swinging movement, and hydraulic means for impelling and directing materials through the chute comprising a pair of jets carried by the first section, aheader carried by said-first section and to which said-jets are connected, a second :header,-'flexible connections providing communication between .the headers and permitting relative movement of the first header with respect to the second header, and means for supplying water under I pressure to the second header.

4. A loading chute as defined in claim 3 wherein the outletsof said jets are spaced slightly above the bottom surface of said section, and

i comprising in combination with a loading flume,

a stationary section extending laterally of the fiume andrhaving a curved entrance end for .engagement with the flume, the bottom of saidsection comprisinga grating to permit discharge therethrough of wood-conveying flumewaterpa- REFERENCES CITED The following references are of record in llihe file of this patent:

UNITED STATES PATENTS Number Name .Date

651,433 Campbell June 12, 1900 667,335 Record Feb. 5, 1901 1,117,64 1 Donaldson Nov. 17, 1914 1,678,382 Daw July 24, 1928 1,854,907 Murray Apr. 19, 1932

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