US1181810A - Logging-conveyer. - Google Patents

Description

T. F. WALL.

LOGGING CONVEYER.

APPLICATION FILED MAY 3 1915.

Patented May 2, 1916.

3 SHEETSSHEET I.

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T. F. WALL.

LOGGING CONVEYER.

APPLICATION FILED MAY 3, 1915.

I Patented May 2,1916.

3 SHEETS-SHEET 2.

y M f [LT/torna o THE coLUMBm PLANOGRAPH c0., WASHINGTON, D. c

T. F. WALL.

' LOGGING CONVEYER. AEPLICATION FILED MAY 3. 1915..

Patented May 2, 1916.

3 SHEETS-SHEET 3.

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THE COLUMBIA PLANOGRAPH $20., WASHINGTON, D. c

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THEODORE F. WALL, F WASHOUGAL, WASHINGTON.

LOGGING-GONVEYEB.

Specification of Letters Patent.

Patented May 2, 1916.

Application filed May 3, 1915. Serial No. 25,579.

To all whom it may concern comparatively Be. it known that I, THEODORE F. WALL, a citizen of the United States, residing at Washougal, in the county of Clarke and State of Washington, have invented certain new and useful Improvements in Logging- Conveyers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to a logging conveyer.

The object of the present invention isto improve the construction of logging conveyers and to provide a simple, practical, and inexpensive log conveyer adapted to obviate the expense of building railroads in mountainous districts, over canyons and the like and capable of enabling relatively heavy loads of logs to be easily and rapidly handled.

A further object ofthe invention is to provide a log conveyor of this character having a cable track and equipped with means for supporting at regular intervals whereby a cable track of: any desired length may be employed without liability of the cable being subjected to undue strain.

. Another object of the invention is to provide a logging conveyor provided with a carrier adapted to pass rapidly through hangers orsupporting means to provide a support for the cable hangers. 7

With these and other-objects in view the invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings and pointed outin the claims hereto appended, it being understood that various changes in the form, proportion and minor details of construction may be resorted towithout departing from at all times at such the spirit or sacrificing any of the advantages of the invention.

In the drawings Figure 1 is a side elevation of a logging conveyor constructed in accordance'with this invention, Fig. 2 is an enlarged side elevation of one of the hangers, Fig. 3 is a longitudinal sectional View of the same, Fig. 4 is a transverse sectional View ofone of the hangers, Fig. 5 is an enlarged detail horizontal sectional view through a portion of the hanger illustrating the manner of 'mounting the oscillatory subjected to a heavy load.

shaft, Fig. 6 is a transverse sectional view of struction of one of the catches of the carrier,

Fig. 9 is an elevation of the same, F ig. 10 is a detail sectional view showing the flared end of the hanger and the tapered casing of the carrier.

Like numerals ofreference designate corresponding parts in all the figures of the drawings. 7

In the-accompanying drawings in which is illustrated the preferred embodiment of the invention, 1 designates an elevated track'cable suitably secured at its ends to the supports which are preferably in the form of trees 2 but any other suitable means may ofcour'se be employed.

.In practice, the trees will be braced by anchoring or guide cables or ropes 3 which may be conveniently secured to stumps of trees. In order to enable a track cable of any desired length to be employed it is designed to be supported at suitable intervals by hangers 4 consisting of a body portion or casing constructed of boiler iron or other suitablematerial and composed of spaced vertical sides and a connecting top and connected by transverse bolts 7 or other suitable fastening devices to which are socured the lower ends of inclined ropes or cables 8. The ropes or cables 8 extend upwardly from the terminal portions ofthe hanger and are suitably secured at their upper ends to oppositely inclined poles 9. The poles 9 which may consist of logs are suitably connected at their upper ends and are located at opposite sides of the track cable, sufiicient space being provided between the supporting pole sides to form a pasage way for the load 10 and carriers 11. The sides of the hanger which have flared terminal portions 12 to. prevent the carriers from catching on the sides of the hanger are reinforced by exterior approximately U-shaped angle bars 13 secured to the hanger at spaced points and adapted to prevent the sides of the hanger from spreading when interiorly arranged longitudinally disposed rails 14 are The rails which are constructed of angle bars or other suitlid will automatically; return the shaft to its [central positlon. The hanger is provided at able material consist of central horizontal portlons and inclined termmalportlons 10.

The cable is supported at spaced points by,

transverse shafts 16 arranged below the horizontal portions of the rails 14 and provided intermediate of their ends with vertical journals 17 mounted in upper and lower journal boxes or bearings 18 and adapted to permit the shafts 16 to swing hori- Zontally to permit the carriers to pass them. The space or interval between the shafts 1.6 is sufficient to enable a carrier to pass one of the shafts and the latter to return to its supporting position before the. other shaft is engaged by the carrier so that the cable will have at least one support within each hanger at all times. The transverse shafts 16 which are provided with anti-friction sleeves 19 of steel or other suitable material extend through'openings 20 and 21 of the sides of the hanger which support the shafts intheir normal transverse position. The sleeves which serve assheaves are adapted to pre- Vent the cable and the shaft from being cut when the cable is subjected to a. heavy load and is drawn across'the shaft incident to the change of position of tlieload in, traveling alongthe track cable.

Each of theshafts 16 is provided at its pivoted: end with an outward extension, or arm 22 to which is connected a pair of outwardly converging springs 23secured at their outer terminals f to brackets 2 L and adapted to maintain the shafts 16 'yieldably in a central position.

The pivotal and yieldable mounting of the shaft 16- enables the latter ,to be swung in either direction by the carrier and the springs the opposite side from that at which the shafts. 16 are pivoted withsprings 25 riveted or otherwise secured to the side of the hanger below the-slo-tsat a point intermediate of the ends thereof andtapered upwardly as shown. The springs are arranged in the path of the free ends of the'shafts l6 and they form cushions andassist in limiting the movement of the shafts after'the same have been actuated by a carrier passingthrough the hanger. These springs 25 facilitate the return of the shafts 16 to their normal position.

Each of the carriers, a pair being necessaryfor supporting a load of legs, as clearly illustrated in' Fig. 1 of the drawings, is

preferablyconstructed of boiler metal and is composed of spaced sides and a connecting top portion. The carrier isprovided at the top with a transverse disposed axle or spindle 26 suitably secured at its center toithe carrier andextending laterally from opposite sldes of the said top portion and having mounted on its journals a pair of wheels 27 which are adapted to run on the track 11 while the carrier is passing through the hanger. The carrier is equipped with upper and lower interiorly arranged grooved wheels or pulleys 27 and 28 mounted on tran verse shafts and 30 suitably secured to the sides of the carrier.

The upper wheel 27 normally runs upon the track cable and supports the hanger therefrom but when the carrier is passing through one of the hangers the wheels 97 of the axle 26 ride up the inclines of the t 'acl: bars 1i and support the cable through the medium of the lower roller or wheel 28 which is normally arranged below and in contact with the track cable 1. This operation lifts the cable from the transverse shaft 16 and the cable is out of contact with the same when the said shaft is swung horizontally by the carrier and after the carrier passes the shaft the latter returns to its normal position before the cable again rests upon its antifriction sleeve 0r sheave.

In practice the track will. be arranged to lift the cable approximately three inches but this distance may be Varied to suit requirements.

The carriers 11 are connected with the load 10 by branches 31 and 32 of a main c011- sheave or pulley 34 adjacent to one end of the track cable and from that point to an engine, not shown. The return rope or cable which is connected with the carrier extends to aguide pulley or sheave 36 at the other end of the track cable, from there to an engine located at that end of the logging conyeyer, but where the track cable is relatively short, the return rope or cable may be extendedto and connected with the engine for winding the main conveyor cable 33. Each of the branches 31 and 32 passes over a guide sheave or pulley 37 mounted in the carrier at the lower portion thereof on a transyerse shaft 38 as clearly illustrated in Fig. 7 of the drawings. The branch of the cable extends downwardly from the guide pulley 3'i'to. a pulley 39 of a metallic block 40 having a hook 411 which is adapted to engage a chain 42 or other suitable tie for curing the logs together to form a load. The branch. of the cable is then extended upwardly from the pulley 39 and is secured at 43 to the carrier. The branch cables and the pulleys or sheaves 37 and 39 enable the load 10 to be elevated. and when the cable 33 is pulled upon the load is elevated to the position illustrated in Fig. 1 of the drawing and is locked in such elevated position of and having beveled edges and adapted to beforced outwardly by projecting flanges 47 locatedat the outer faces of the sides of the block 40 and adapted to rest upon the engaging portions 46 of the catches. The catches consist of straight bars or body portions and their lower arms are normally urged inwardly by springs 48 disposed on pins or bolts 49 and engaging the catches at the outer faces thereof. The pins or bolts 49 which are suitably secured to the carrier extend outwardly through slots 50 in the catches and are interposed between the same and the heads of the bolts or pins 49. Any other suitable arrangement of springs however, may be employed for moving the engaging portions of the catches inwardly. The upper arms of the catches are connected by short upwardly converging lines 51 with a short arm 52 of a lever 53 which is pivotally mounted on a transverse pin or bolt 54. The short lines or connections 51 extend through slots 55 in the sides of the carrier and when it is desired to lower the load to the ground, the outer end 56 of the lever is pulled downwardly, which may be effected by any suitable means. When the outer end of the lever is drawn downwardly the upper arms of the catches are swung inwardly through the slots or openings 55 and the engaging lower portions 46 of-the catches are withdrawn from beneath the flanges 47 of the block 40. When the catches are withdrawn from beneath the flanges 47 the load may be lowered to the ground. Any other suitable means may of course be employed for locking the blocks of the carrier in an elevated position and for releasing the same.

In practice the carriers will be equipped with a casing 57 constructed of. sheet metal or other suitable material and having integral outwardly converging portions 58 as clearly shown in Fig. 10 to enable the carriers to readily enter and pass through the hangers without catching on the same.

The logs constituting the load 10 are bound together by means of the chains 42 which are located adjacent to the ends of the logs. The carriers are adapted to be readily engaged with the chains and the load may be quickly elevated and secured to the spaced carriers. After the load is locked to the carriers by the catches thereof, the cable may be readily operated without liability of disengaging the blocks from the catches. The logging conveyer will enable a relatively large number of logs to be rapidly carried from one point to another and when logging operations are completed at one place or section the logging conveyer may be readily transferred to another section.

What is claimed is 1. A conveyer of the class described including a track cable, a hanger receiving the cable and provided with a transversely disposed supporting device, said supporting device being pivotally mounted and adapt ed to be swung aside by a carrier, and means for automatically returning the said device to its supporting position.

2. A conveyer of the class described including a track cable, a hanger receiving the cable and provided with a pivotally mounted transversely disposed shaft extending beneath and supporting the cable and adapted to be swung aside by a carrier, and means for returning the shaft to its supporting position automatically.

3. A conveyer of the class described including a track cable, a hanger receivingthe cable and provided with a pivotally mounted transversely disposed shaft extending beneath and supporting the cable and adapted to be swung aside by a carrier, and springs located at opposite sides of the shaft and connected with the same for automatically returning the same to its supporting position.

4. A conveyer of the class described including a track cable, a hanger receiving the cable and provided with a pivotally mounted transversely disposed shaft extending beneath and supporting the cable and adapted to be swung aside by a carrier, and

opposite cushions arranged to limit the movement of the shaft and assist in the return of the same to the supporting position thereof.

5. A conveyer of the class described including a track cable, a hanger receiving the cable and having a movably mounted device located within the hanger and arranged to normally support the cable, a track carried by the hanger and a carrier arranged to run on and be supported by the track and adapted to move'the said device from beneath the cable, said device being normally located in the path of the carrier.

6. A conveyer of the class described including a track cable, a hanger receiving the cable, a movably mounted supporting device arranged within the hanger and forming a support for the cable, said device being adapted to be moved from beneath the cable by a carrier, and a track arranged to support the carrier and having an inclined portion for elevating the carrier to relieve the said supporting device of pressure.

7 A conveyer of the class described including a track cable, a hanger receiving the cable, and provided with movably mounted means for supporting the same, said sup porting means being adapted to be moved from beneath the cable by a carrier, and a track arranged within the hanger for supporting the carrier, said track having oppositely inclined portions adapted to elevate the carrier. V A

8.'A conveyer of the class described including a track cable, a hanger receiving the track cable and having spaced pivotally mounted shafts extending beneath the cable, "anti-friction devices mounted on the shafts for supporting the cable, tracks located within the hanger at opposite sides thereof and having inclined portions, and a carrier provided with exterior wheels arranged to run on the tracks, said carrier being also provided with interiorly arranged upper and lower wheels located above and below the cable, the upper interiorly arranged wheel being adapted to run on the cable and, the lower interiorlv arranged wheel being adapted to lift the cable.

THEODORE F. WALL.

Witnesses THos. S. KEEP, L. R. GERNMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

" Washington, D. G.

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