US1181933A - Telescopic chute. - Google Patents

Description

A. SMITH.

TELESCOPIC CHUTE.

APPLICATION FILED'MAR. 24. 1914.

Patented May2, 1916.

2 SHEETSSHEET I- WITNESSES D INVEQNTOR HususTus -5/YI ITH BY 4 a ATTORNEY5 THE COLUMBIA FLANOGRAPH 120.. WASHINGTON. D. C.

A. SMITH.

TELESCOPIC CHUTE. APPLICATION FILED MAR. 24, 1914.

Patent-ed May 2,1916.

2 SHEETS--SHEET 2.

W ITNESSES INVENTOR AT 4 RE;

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AUeUsTUs SMITH, 0E ROSELLE, N W JERSEY, ASSIGNOR, TO BERGEN POINT IRON WORKS, 0E BAYONNE, NEW JERSEY, a CORPORATION OF NEW JERSEY.

TELESGOPIC CHUTE.

merges.

Specification of Letters Patent.

Patented May 2, 19116..

Application filed March 24, 1914. Serial No. 826,909.

I To all whom it may concern Be it known that I, AUGUSTUS SMITH, a citizen of the United States of America, and residing at Roselle, in the county of Union and State of New Jersey, have invented a certain new and useful Improvement in Telescopic Chutes, of which the'following is a specification.

The present invention relates to chutes and particularly to an improvement in apparatus for operating telescopic chutes so that they can be conveniently lengthened,shortened and swung in vertical and horizontal planes. 7

' In the accompanying drawings, Figures 1 to 4 are side elevations, more or less diagrammatic, and. illustrating four difierent embodiments of my invention.

In Fig. 1- I have shown a chute with single telescopic portion suspended from an inclined boom, the vertical angle of which is controlled by means of a topping up rope.

Fig. 2 shows a similar telescopic chute and boom but, in this case, the vertical angle of the boom is controlled by a strut which takes the place of the topping up rope in Fig. 1.

, Fig. 3'shows the chute with two telescopic portions and a small auxiliary boom hinged on the axis of-the large inclined boom to gether with topping up rope. Fig. 4 shows a difi'erent method of reeving the chute suspension ropes and a difierent method of getting the parallel motion secured in the preceding arrangements. I I

In general the apparatus consists of pivoted inclined chute with one or more telescopic or extension pieces, the extension pieces being supported by ropes of fixed length to rolling or sliding trolleys which 1 operate on an inclined boom." The centers and lengths of the different members are taken so that the boom and chute are, at all times, practically. parallel to each other so that, to adjust the overall length of the chute, it is only necessary to move the rolling or Sliding trolley on its boom and the telescopic portion will then slide in or out without changing the vertical angle on which the chute is operating. When it is desired tochange the angle of operation of the chute, the vertical angle of the boom is correspondingly changed andthe different telescopic portions of the chute are held in a straight line at all times, due to the fact that .the boom is at all times parallel to the-chute.

Referring to the arrangement shown in Fig. l, the main portion of the chute C is pivoted at P about which center it is free to rotate. The telescopic portion of the chute E is suspended by the two suspension rods or ropes S and S from the trolley T which runs 011 the boom B on the rollers Rand R The boom B is hinged at the pin H, vertically alined with the pivot P, and its vertical angular position is adjusted by the topping up rope U controlled by the drum D. The in and out position of the trolley T in respect to the boom B is controlled by a trolley rope A leading to a drum B The vertical angular position of the chute may be changed by raising or lowering the boom B by means of the topping up rope U. The chute will then revolve about the hinge P and the telescopic portion E will not change its position relative to the main portion C so that the total length of the chute will remain the same and the telescopic portion E will be held paralby means of a strut F pivoted to the boom B at and having at its inner end a roller K rolling on a. vertical track L. The position of the roller Kon the track L is con-' trolled by a pull down rope U which winds on the drum D When the strut F is pulled down toward the drum D it shoves boom B toward its outboard position. The Opera-. tion of the telescopic chute E and trolley T is the same in this case as described above for Fig. 1.

In the construction shown in Fig. 3, an

intermediate telescopic chute, I is introe duced between the main chute C and the end portion of the telescopic chute E. This intermediate chute I is suspended by means of a suspension rod or rope M from a trolley N which also runs on the boom B. The length of the suspension rod M is the same as the suspension rods S and S supporting the chute E so that the intermediate tele scopic chute I. theend telescopic chute E V and the main chute C are maintained at all times parallel. Obviously the i one telescopic intermediate chute I could be 1ncreased to any reasonable number to suit varying conditions and these intermediate chutes could also be .used in the constructions illustrated in Figs. 1, 2 and -l.

Referring again to the apparatus shownin Fig.1, when this apparatus is housed in, 6., when the chute C and boom 'Bare hanging nearly vertical, it is hard to pull the boom B out .on account of the poor lead of the topping up rope U. To meet'this difiiculty, which is also present in the construction shown in Fig. 3, an auxiliary boom 0' (Fig. 3) may be introduced. When the boom 13 is hanging nearly vertical this auxiliary boom 0 is also nearly 1 vertical, but when the topping up rope U is taken in, the auxiliary boom swings out Without imparting motion to the boom B until it has reached a position where its limit rope Q getstaut, atwhich point the boom B and, therefore, the chute, starts to 7 rise and this device gives a good lead to the topping up rope U.

In the foregoing Figs. 1 2 and 3;, the boomand chute are at all times practically parallel toeach other so that the main chute and the telescopic portions are main tained. parallel in all positions. Fig. at showsanother method by which the parallelism of the main chute and the telescopic portions can be maintained even when the boom is not parallel to the chute. In this case, instead of the telescopic chute suspension ropes being made fast directly to the trolleys as in the former cases, they lead over sheaves Von the trolley T N and are then made fast at the end of the boom B. In the position shown in Fig. 4: the boom 13 is horizontal and the chute is standing at 45 degrees. lVhen a given motion is imparted to thetr'olleys T in the horizontal direction, a corresponding vertical motion is glven to 'thesuspension ropes S, S

'M Thus, if the trolleys T, N are rolled in one foot,,the suspension ropes S, S M

' will also move in one foot inasmuch as'they always hang vertically, and, at the same time they will beisimultaneously shortened up in length one foot. The operation of the telescopic chutes consequently will be similar to thatfdescribed above for'Figs. 1, 2

/ and 3.

The particular advantage of the con-' struction of this apparatus is that the length and vertical angle of the telescopic chute can, at all positions, be easily and simply controlled with little or no possibility of the chutes jamming one on the other as is usually the case with other forms I of apparatus.

I claim as my invention 1. In apparatus of the character described,

a chute having a telescopic extension section,

a pivotal support for the upper end of the chute, an overhead support for holding said chute in normally inclined operating position, and means traveling longitudinally on said support for extending and retracting said extension section of the chute in inclined position.

2. In apparatus of the character described, achute having a telescopic extension section, a pivotal support for the upper end of. the chute, an overhead support for holding said chute in normally inclined operating position, and means traveling longitudinally on said support for extending and retracting said extension section of the chute in inclined position, in telescopic parallelism to the pivoted top section thereof.

3. In apparatus of the character described, a chute having a telescopic extension section, a pivotal support for the upper end of the chute, an overhead pivoted boom for raising said chute to normally inclined operating position, and means traveling longitudinally on said support for extending and retracting said extension section in inclined position. 7

- the chute, an overhead boom pivoted on an.

axis vertically alined with that of the chute, and means traveling longitudinally on said boom for extending and retracting the extension section of the chute in inclined posi tion.

6. In apparatus of the character described, a chute having a telescopic extension section, a pivotal support for the upper end of the chute, an overhead boom pivoted on an axis vertically alined with that of the chute, and means traveling longitudinally on said boom for extending and retracting the extension section of the chute in inclined position, in telescopic parallelism to the pivoted top section thereof. 7. In apparatus of the character described, a chute having a telescopic extension section, a pivotal support for the upper end of the chute, an overhead support for holding said chute in normally inclined operating posi-' tion, means traveling longitudinally on said support for extending and retracting said extension section of the chute in inclined position, and a supporting rope of fixed length operatively connected to said traveling means and to said extension section for supporting the latter.

8. In apparatus of the character described, a chute having a telescopic extension section, a pivotal support for the upper end of the chute, an overhead support for holding said chute in normally inclined operating position, means traveling longitudinally on said support for extending and retracting said extension section of the chute in inclined position, and a supporting rope of fixed length operatively connected to said traveling means and to said extension section for supporting the latter, in telescopic parallelism to the pivoted upper section of the chute.

9. In apparatus of the character described, a pivoted telescopic chute, an overhead supporting boom, trolleys traveling longitudinally on said boom and connections there from to the telescopic sections of the chute, said connections being such as to maintain the chute sections parallel in either extended or retracted position, together with a topping up rope for lifting and lowering the boom independent of the longitudinal movesaid boom and connections therefrom to the telescopic sections of the chute, a topping up rope for lifting and lowering the boom and an auxiliary boom to which said topping up rope is directly connected, said auxiliary boom having a slack connection to the outer end of the main boom, for the purpose described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses.

AUGUSTUS SMITH.

Witnesses:

SAMUEL J. WHEELER, 7 P. B. Os'rROM.

Copies of thie patent may be obtained for five cents each, by addressing the "commissioner oi Patents.

,, Waahinmon, D. U.

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