US840579A - Tripper or deliverer for belt conveyers. - Google Patents

Description

. PATBNTED JAN. 8, 1907. V B. MORTON; I

TRIPPER 0R DBLIVERER FOR, BELT GONVEYERS.

APPLICATION FILED MAY 5 1906.

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WITNESSES: v

IN VE N 70/? THE NORRIS PETERS co, WASH|NOTOI 4, n.

PATENT'ED JAN. 8, 1907,

r B. MORTON. TRIPPER 0R D'ELIVE'RER FOR BELT GONVEYERS.

APPLIOAT'ION FILED MAY 5, 1906.

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[NVENTOH WITNESSES: i nn-47W WM ms NURRIS PETERS co., WASHINGTON, n. c.

UNITED STATES PATENT OFFICE.

BAXTER MORTON, OF NEW YORKQN. Y.

Specification of Letters Patent.

Patented. Jan. 8, 1907.

Application file May 5,1906. Serial No. 315,325.

To (LZZ whom it may concern: I

Be it known that I, BAXTER MORTON, a citizen of the United States, residin in the city, county, and State of New Yor have invented new and useful Improvements in tion fromthe conveyer-belt to the traction devices ,of the tripper.

In the accompanying drawings I have illustrated one embodiment of the invention which is hereinafter described in detail, and the scope of the invention is clearly pointed out. in the claims. I I

In the drawings, Figure 1 is a view in side elevation of a tripper constructed according to the present invention. Fig. 2 is a view in end elevation of the tripper shown in Fig. 1 with parts of the conveyerv structure indicated in section. Fig. 3 is-a diagram showing the movement of the bend-pulleys to adapt the tripper for o eration when the direction of travel of the elt is reversed. Fig. 4 is a diagram showing the ap lication of the invention to a tripper having t e up er bendpulley fixed and the lower bend-pu ley only susceptible of shifting.

Referring to the drawings by the reference characters, A designates the rails of a track of ordinary construction, B the conveyerbelt, and (J the troughing-idlers for the belt. The traction-wheels 1 of the tripper rest upon the rails as usual and afford support for the frame 2, upon which the entire mechanism of the tripper is supported. The frame 2 is provided intermediate of its ends with heavy supporting-arches 3, in the tops .of which are 'mounted short shafts 4, which carry bars 5,

' between the ends of which the upper bendpulley 6 and lower bend-pulley 7 are arranged. The two bend-pulleys turn about shafts 8 and 9, respectively, which are rigidly connected with the bars 5, so as to form a strong rectangular frame, and at each side of the frame is mounted a large worm-gear or circular worm-rack 10, which meshes with the worm 11 on a shaft 12, turning in bearings upon the adjacent supporting-arch. The shaft 12 is adapted at the ends to receive a wrench 13. (Shown in dotted lines in Fig. 1.), By means of the worm-gears 10, the worms 11, and the shafts 12. upon which the worms are mounted, the frame carrying the two bend-pulleys can be turned about the pivot-shafts 4 to reverse the curve of the belt.

In the structure illustrated in Figs. 1 to 3, inclusive, but one lower bend-pulley is provided, and power is always transmitted to the traction-wheels from the lower bend-pulley. The power-transmitting mechanism comprises a bevel-pinion 14, rigidly connected with the lower bend-pulley, a bevel-pinion 15, with which the pinion 14 meshes when the bend-pulley is in operative position, and mechanism for transmitting motion from. the bevel-pinion 15 to the tractionwheels. The pinion 15 is mounted at the upper end of a short shaft turning in bearings provided in one of the supporting-arches 3. and provided at its lower end with a bevelpinion 16, which is constantly in mesh with two loose bevel-pinions 17 on the longitudinal shaft 18, from which motion is transmitted to the axles of the traction-wheels. Clutches 19 are provided to establish operative connection between the bevel-pinions 17 and the shaft 18, as required. In the structure diagrammatically illustrated in Fig. 4 an upper bend-pulley 20 turns round a fixed axis, and two lower bend-pulleys 21 and 22 are mounted in opposite ends of a frame 23, which turns round the axis of the fixed upper bend-pulley to bring one or the other of the lower. bend-pulleys into position. The lower bend-pulleys 21 and 22 are both provided with bevel-pinions 24, and when either of the two lower bend-pulleys is in operative position below the fixed bendpulley 20 the bevel-pinion carried by the lower bend-pulley, which is in position, will mesh with a fixed bevel pinion 25, which occupies the position, of thefixed bevel-pinion 15 in Fig. 1

From the foregoing description and the drawings it will be noted that the mechanism for transmitting motion from the belt, to the traction mechanism is very simple and comact com risin ver few ears and reducing both the cost and weight of said powertransmitting mechanism to a minimum. l

While I have shown and described a shaft extending longitudinally of the tripper- IIO - the present invention.

The operation of the tripper constructed according to the present invention will be readily understood. When the bend-pulleys are in the position shown in Fig. 1 with the belt traveling from left to right, the bevel gear 14:, carried by the lower bend-pulley, is in mesh with the bevel-gear 15, mounted in the base of one of the supporting-arches 3, and motion is transmitted'from the bevel-gear 15 t'o-t'he traction-wheels. When, however, the direction of travel of the belt is to be reversed, the upper and lower bend-pulleys are both turned through a complete circle-from right to left, as indicated in Fig. 3. During this movement the bevel-pinion 14, carried by the lower bend-pulley, remains out of engagement with the pinion 15 from the beginning of the movement until it is substantially completed, coming into engagement with the pinion 15 only just before the lower bend-pulley completes its travel through the entire circle. In this way the effort required to effect the shifting of the bend-pulleys preparatory to the reversal of the belt is reduced to a minimum, and the gears remain in mesh only when the bend-pulleys are in position for operation.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination in a tripper or deliverer for belt conveyers of a shiftable bendpulley, traction members, and power-transmitting mechanism whereby movement is transmitted from said lower bend-pulley to said traction members, said power-transmitting mechanism comprising a pinion movable with said shiftable bend-pulley and a pinion turning about a fixed axis and adapted to 011- gage with the pinion movable with the shiftable bend-pulley when said shiftable bend.- pulley is in operative position.

2. The combination in a tripper or deliverer' for belt conveyers of a shiftable lower bend-pulley, traction members for saidtripper, and power transmitting mechanism whereby movement is imparted from said shiftable lowerbend-pulley to said traction members, said power-transmitting mechanism comprising a pinion: rigidly connected with said shiftable lower bendpulley and a pinion turning about: a fixed axis and adapted for engagement with the pinion rigidly connected with the shiftable lower bendpulley when said lower bend-pulley is in operative position.

In testimony whereof I have signed. my name in the presence oftwo witnesses.

' BAXTER MQRTON. Witnesses:

H. RICHARD W'o'Bsn, K. E. O'BRIEN.

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