US895033A - Conveying apparatus. - Google Patents

Description

i n PATBNTBDfAUG.4,19oa.' -j T. s. M ILLBMEJ. H. DIoKINsobLH CONVEYING APPARATUS.

APPLICATION FILED KAY 12, 1905.

3 SHEETS-SHEET 2.

THOMAS SPENCER MILLER, OF SOUTH ORANGE, AND JOSEPH H. DICKIXSOX, OF MON'ICLAIR,

v New JERSEY. convenue APPARATUS. i

No. scopes.

To all whom it, may concern:

Be it known that we, THOMAS SPENCER MILLER, a citizen of the United States, and a resident of South Orange, in ,the county of Essex and State of New Jersey, and JOSEPH H. DioitiNsoN, a citizen ot the United States, and a resident of Montclair, county of Essex, and State of New Jersey, have invented certain new and useful Im rovements in Conveyiiig Apparatus, of which the following is a specication.

O ur invention relates toan improved conveying apparatus of the type ein loying a suspended cable as a trackway, an has particular application to improved means for movang, tightening, raising and lowering the cable. In the present inst-ance, We will describe this apparatus as employed in logging operations in which a central tower or support is employed, from which a cable is erected radially, and the logs lying near this cable are hoisted and conveyed to any predetermined lace. As soon as the logs have been cleare from a certain run this cable is dropped, and a second cable is then picked up upon another line extending radially from the central su port. Up to the present time, it has been tlie ractice to detach the long portion of the cable from one side of this central support and pick up a second correspending cable; the object in having two cables being to reduce to a minimum the time lost in changing the cable. Hcretofore, however, it has always been the practice to shift that portion of the cable, or the main cable extension, running from a point near the tree support to the back anchorage for the same, after one of the main cables has been dropped. In the present instance, it is our intention to support the back ortionof the cableway in position, in suc i manner that in shifting from one cable to another we also shift from one inde endent back anchorage to a second. It be noted that if the osition of the main cable be shifted radially in the direction of the movement of the sun, the position of the back anchorage will have a corresponding movement, always, however, exactly opposite tothe main cable, so that in each position of the cable the backward anchorage portion shall be approximately in a straight line with the main cable.

y An important saving of time and labor is Specification of Letters Patent. Application filed May 12, 1905. ,Serial No. 260,187.

Patented Aug. 4, 1908.

thus effected, permitting the cablewayto be in operation more hours per day, and, therefore, to convey a greater iiu-niber of loads when compared with the cableways as ordinarilyconstructed. .is soon as the cableway is working in one position, the riggers are preparing a back anchorage for the following position. Thus, the operation of the cableway is more continuous 'than heretofore.

Our invention consists in the construction,

combination and arrangement of parts set forth in and falling -within the scope of the ap ended claims.

n the accompanying drawings, like characters of reference indicate like parts in all of the views; and, Figure 1 is a view illus- 70 trating one preferred embodiment of our apparatus. Fig. 2 is a slightly modified form of apparatus, wherein we employ two separate guys in the space of a single guy forming a, continuation of the main cable 75 extension, as shown in Fig.'1. Fig. 3 is a top plan view of an engine designed for employment in conjunction with our apparatus; I

certain parts of the engine being omitted;

such view also illustrating the arrangement and construction of drums for operating the anchorage. Fig. 4 is a detail View showing the drum, ratchet and pawl mechanism. Referrin now, to' the accompanying drawings, support and B indicates as a whole an engine employed in connection with the ap aratus. The main cablesvayof the device iss iown at 5, such main cable extending from the head tree to a tail tree or su C is the carriage of t ie apparatus, and 7 is an out-liaul rope extending from the engine drum b throughthe guide-slieave S .at the head tree andthence across the carriage to 9 to one side of the carriage. The skidding y rope 10 is operated by the t rum b', such rope extending over the sheave 11 at the head support and thence to the. carriage.

12 is the slack pulling rope operated from 100 the drum b2 of the engine, such rope also extending over a sheave 13 at-the head tree and thence to the carriage. The hoisting rope of the apparatus is shown at 14 and carries at one en the tongs 15.

represents the head spar tree or port (not shown).

The main or carrying cable 5 is connected mth the mam cable exten- A UNiTED sTArasfPATij-T"FB-EE, j/i

sion 16 at the point 17, such extension passing over the guideblock 18 at the Vhead support. y y i The skidding apparatus just described is of a well known construction, and the operation of the same'will be readily understood.

In Fig. 1, the main cable extension 16 is connected at the point 17a with a plurality of blocks and tackles D and E, each comprising a running block and afixed lblock reeved together in the manner hereinafter described. For the purpose of convenience we will herein-M after designate these blocks and tackles as heel blocks.

The block D is provided with an end loop 19, while the block E is provided with a simllar loo 20, whereby such blocks may be detachab y connected to any suitable anchorage, such as the stumps f. A's stated,'the

arts D and E or the purpose of applying tension, each is provide with a rope or line extending to drums mounted on the engine for this purpose. As will be seen from the drawings, the

lock D has a tension rope 21 extending to a sheave or pulley 22 at the head tree and thence to the drum b3 of the engine, while the block E is similarly provided with a rope 23 passing over the pulley 24 andthence to the `drum b4 on the engine.

In Fig. 3, wehave shown a construction of engine especially adapted for use in conjunction with the cableway'of the character heresuch in described. As stated, B indicates the engine as a whole, but in said figure the boiler,

.certain drums, and the connect-ions therefor for operating the hoistin and hauling ropes are omitted, while additional drums b3 and b4 are provided. These drums are fast on the shafts b5 and b6 each drum havin a large gear wheel 67 adapted to mesh wit a clutch pinion bs loose upon the power shaft b".

61 indicates clutch members splined to the power shaft to turn therewith, but free to slide or shift lonvitu :linallyof the shaft, and each of members engages with the adjacent clutch member 71s to turn the latter with the shaft. Each ot the drums b3 and b* is provided with a band brake b operated by a foot-lever b12 -so that'by a plymg its brake either of the drums may be iieldagainst revolution as desired. One of the end flanges of each drum is also lequippedwith a circular rack b13 adapted to be engaged by a suitable pawl b to lock the drum against movement.

The o eration of the apparat-us is as follows: When it is desired to log a run, the parts are assembled substantially as shown in Fig. 1, the main cable-way 5 being held taut b v tension applied to the extension 16 through one of t ie heel blocks, in the present instance, that shown at'D, the tension rope 21 being drawn taut by winding upon t e drum b3 of the engine. In the meantime, the

are in the form of blocks, and

running block E is slack and loose, and its tension line is Aalso necessarily loosenedby reeling off from the drum b4. After therun has been logged, it is desirable to slacken ten-v sion rope 21 to permit the main cable' to be slackened and lowered so that 1t may be un- `coupled and a second similar cable connected at t ie point 17 in place of the first one. This is accomplished by permitting the line 21 to slacken ofi' the drum `b3,. said drum-being rej leased, and the cable in use is consequently lowered. The second-cable is then attached and the drum -b is actuated to haul in the line 23 which 'tends to elevate the main cableand tightenor tension the heel block E. The

and secured to another stump or anchorage I op osite the next run.

n Fig. 2, Wel have shown a slightly modii ed form of device', for, in this case, instead of employing a slngle rope forming a mam cable. extension or guy, we employ a lurality of guy ropes 16. and 16b each of w ich` passes over the guide-sheave 1S the ends of the guys being detachably connected to the main cableway at the point 17 in any su1t able manner. The apparatus shown 1n Fig. 2 has the same mode of operation as that shown in Fig. 1, and such operation, therefore, neednot be described in detail.

While we have herein shown and' described one particular embodiment of our invention, we wish it to be understood that we do not confine ourselves to all the precise details of construction herein set forth, as there may be modifications and variations in certain res erts without departing from the s irit of tie invention or sacrificing any of t e advantages thereof.

Having thus described our invention, what we claim and desire to secure by Letters- Patent/is:

1. In a conveying apparatus the combination of a support, a main cableway, a rope or guy connected to said main cablewa and a. plurality of tension devices secured to said guy and connected to suitable anchorages.

2. In a conveying apparatus the combination of a su Y nected to sai cableway, a plurality of tension devices connected to said rope, a drum for each of said tension devices, and an engine for operating said drums.

3. The combination o' a support, a cablewayvconnected'to said sup ort, a lurality of tension devices connecte to said cableway being suitably anchored, and means for applying tension to one of said devices and removing such tension from another of said de. vices.

pport, a cableway, a rope con-A 4. The combination with-a cable, of means p for maintaining tension u on the same comprising a plurality of running blocks connected to `such cable,l an anchorage for said v blocks, and means for a plying tension to' and removing tension om eachr of said blocks at deslred times. i

5. The combination of a support, a cableway, a plurality of tension lines or ro es connected to said cableway, a running bock for cable, an extension rope connected to said cable and passing over a guide on said su port, a plurality of linesl connected to said cableway extension, a running block for each /of said lines, a plurality of anchorages, means 20,/ for detach-ably securing said blocks to the an- /f chorages, and means for applying and removing tension from each of sald blocks at deslred tunes.

7. 'lhe combination of a support, a mam cableway, a line connected to said cableway and passing over a guide on said support, a

lurality of anchorages, a ro e extending From each anchorage to the cab e line, an engine for tensioning one of said ropes While the other rope is loosened.

8. In a conveying a paratus, the combination of a cableway, a p urality of tension lines for said cableway, and means for actuating 895,033 'A v 2.3v

the tension lines, such means comprising a drum for each .of said tension lines.

9. In a conveying apparatus, the combi-' nation of a main cableway, e gu for said cableway, a plurality of tension devices secured to sai guy and connected with suitable enchorages and means for tensioning said devices, com rising an engine having a. drum for each ofp said devices, a brake for each drum and a clutch mechanism between each drum and the power mechanism of the engine for transmittmg motion to the drum.

10. The combination of a cableway, a plu rality of tension devices therefor and mechanism for operating said tension devices comprising an engine-having a plurality of drums, a power shaft, a clutch mechanism interposed between each drum and the shaft whereby each drum may be driven from the shaft, a brake for each drum, and mechanism for locking each drum against movement. 4 r

In testimony whereof we have hereunto signed our names in the presence of subscribmg witnesses.

THOMAS SPENCER MILLER. JOSEPH H. DICKINSON. Witnesses for Thomas Spencer Miller:

Louis G. RUGGLES, JOHN SINCLAIR. Witnesses for J. H. Dickinson:

A. M. DroxrNsoN, M. S. MARTINDELL.

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