USRE14149E - Traction-engine - Google Patents

Description

N 0 S N H O Cw Am TRACTION ENGINE;

APPLlCATiON FILED OCT-12.1915.

14,149 3 SHEE'TSSHEET I.

Reissued June 13, 1916.

TNESS 'INVENTOR. Jf d C. 04n. m

BY J

ATTORNEY A. C. JOHNSON.

TRACTION ENGINE. APPLICATlON FILED OCT-12,1915.

' Reissued June 13, 1916. 14,149.

3 SHEETS-SHEET 2 WITNESS J $132? V 6 mad hm Z0 "fiW By v ATTORNEY A. C; JOHNSON.

TRACTION ENGINE.

APPLICATION FILED 00112.:915.

Reissued June 13, 1916.

i 7*. am

ATTORNEY I WITNESS WSW UNITED ST ES PATENT OFFICE.

ALFRED c. JOHNSON, or wmrnns, caurozmm;

TRACTION-ENGINE. I

Specification of Reissued Letters Patent. Reissucd June 13, 191 6.

Original No. 1,153,112, dated September 7, 1915, Serial. No. 851,065. Application tor reissuehled-Dcteber 12, 1915. Serial No. 55,592.

To all whom it may concern Be it known that I, ALFRED C. Jonnson, a citizen of the United States,and a resident of Winters, in the county of Yolo and State of California, have made certain'new and useful Improvements in Traction-Engines, of which the following is a specification. I

My invention is an improvement intraction engines, and has for its object to provide an engine of the character specified, especially adapted for hauling heavy loads over bad roads, wherein the'traotor carries an endless track, which is continuously laid and lifted as the engine moves forward.

In the drawings, Figure 1 is a side view of the improved'engine, Fig. 2 is a top plan view, Fig. 3 is a section on the line 3-3 of Fig. 1, Fig.4: is a rear view of the axle showing the adjusting mechanism, Fig. 5 is a top plan view of a pair of links used in the construction of the endless track, Fig. (3 is a detail side view of a portion of the supporting frame, and Fig. 7 is a rear view of the same.

The present embodiment of the invention comprises a rear axle 1, having at ca nd a wheel 2, and it will be noted tlt- 1e wheels have a peripheral rib 3, torcngaging the ground to prevent lateral movement otthe wheel. The axle 1 is held to the-enlarged based of a column 5, by means of substantially U-shaped clips 6. Each of the clips engages over the axle, and then passes through an arc-shaped slot 7 in the adjacent end of the enlargement/i, and the arms of each clip are engaged by nuts 8 on the opposite side of the enlargement from the axle. It will be evident that by loosening the nuts the axle may be adjusted vertically with respect to the column, or the axle may be inclined to cause either wheel to stand at a. higher level than the other.

hctscrews 9 are threaded through an extcnsion 10 from the enlargement, into engagement with the axle near the respective clips, for assisting in holding the axle in adjusted position.

forwardly and upwardly to a connection with a frame '11, and the upper end of the column is adjustably ronnccted to the 'frame in a manner to be presontl y described. A seat 13 isgconncchal lo the column. by means of apl'atc 14. one end of the plate being secured to the seat, and the other end The column 5 inclines to the column, and a. steering wheel 15 is" secured to a. steering shaft 16, which is journaled in'a bearing post 17 extending.

'tlie'wheel 15 in the proper direction, the

tractor frame may be swung with respect to the main frame, to guide the engine.

The tractor frame 22 has pairs of forward and rearward extensions 23 and 24 respectively, and the rearward extensions 24 have an upwardly extending frame 25, which is pivoted to the front end of the main frame 11 in a manner to be presentlydescribed. A shaft 26 journaled in the rearward extensions 24. and a shaft 27 is journaled in bearings 28 in the rear ends of bolts 29, whose forward ends pass through flan s 30 in the extensions 23, and are engaged, y

nuts 31 infront of the flanges. The ends of the shaft 27 are reduced to pass through the bearings as indicated at 32,

- and a nut engages each red-ucedend outside of the bearing. It will be evident that by turning the nuts 31 in the proper directlon, the axle or shaft 2T-may be moved forwardly and rearwardly. he bearings 28 move in guide-ways on the oiiter faces of the extensions 23. i

' Front and rear tractor wheels 34 and 35 respectively are secured toth e shafts 27 and 26 respectively, the said wheel 35 being in fact a sprocket wheel, while the whcel'34 is plain on its peripheral surface... These wheels support an endless track, that is 'an endless chain consisting of pairs of similar links pirotally connected'together, as shown in Fig. 5. The links 37 and 37 of'each pair are arranged in parallel spaced relation, and each link has its ends oppositely l'abbeted o1 notched, as shown at 38 and 39, the rabbet 38 being on the inner face of the link and the rabbct 39 on the outer face. 7

Each rabbcted portion of each link is pro vided with a' bearing sleeve 40 and 41 respectively, the sleeves 40 at the 'rabbets 38 being on the outer faces of the links while the sleeves 41 at the rabbets 39 are on the inner faces. The arrangement is such that at one end, the bearing sleeves 11 extend inwardly and at the other end the sleeves 40 extend outwardly. Each pair. of links is thus so arranged that they may he engaged outside of the end of the succeeding pair of links, there being sufficient space at the rah" heted surfaces 38 to receive the opposite ends ofthe other links.- I I A bolt &2 is passed through the bearing sleeves 1O andl-l at the ineeting ends of each pair of links and each bolt is engaged by a nut 13 at the opposite end from the head.

\Vashers 11 are arrangedbetween thehcad of the bolt and the nut, and in the completed chain the links engage opposite sides of the sprocket teeth on the wheel The chain is of such, length that it will pass over the Wheels $1 and 35 and ovcr. a series of truck wheels 15 joiu'naled in a truck housing -10 on the main frame.

Each of the heels 4:5 has a stub shaft 47 which is journaled in the housing and the peripheral surfaces of tlien'heclsengage the upper edges of, the links on the lower run of the chain.v The said upper edges arev plain, while the lower edges of the links have spurs or lugs 18 forking-aging the sur face over W111 ch tliie 'enginc moves to prevent slipping of the chain. The lower outer edge of each; link is also flanged, as indicated at tt f and the rear end of each of the outer edges is ,be'velethso that the rear end of the i flange inclines inwardly as indicated at 50,

to .e'xtend ahove thc adjacent edge of the flange 49 of the. preceding link. The shaft 26 is journaled in sectional bearings 51 on the frames 25 and the said frames extend upwardly as shown, to a connection with arms a yoke-5'2.Thearnism curve out- W'ardly and downwargh and each is provided with anoutwardly extending journal pin which receivedfin; a. se :t ional bearing 5 on the adjacentfraine'fiii. v Each of the arrns 52 has a shoe 50 at'the innerside of the journal pin 53, andeach shoe is adapted to rest on the uppcr flat planesurface of the adjacent fra1ne25. It will he noted from an inspection of Fig. 3 that theTaheel 34; isjournaled on the shaft or axle 27. and that ball bearings 58 are interi iosed hctwcen thewhecl andthe shaft or aXlQ 1 f j The wheel isjournaled on theaxle 26;

a hall hearing-59 and a roller hearing 60 are arranged between thewhccl and the shaft or aXlc. The nhcfel 35 hasau. internal gear 01, which meshes "with a pinion 02 on v a. shaft 03 journ'alcd in the-tractor supporting" frame 22, andsupported by 'a' hall hoaring-(i l and a rollcrfhcaring 05. A gear wheel- 60 is secured to the counter-shaft; and the gear Wheel meshes with a pinion 67 our- 0 nalcd on, the reduced end 68 of the crank shaft 09 of theengine.

which are journaled at, their inner ends in the collar 102 and at their outer ends in a supporting web 103 rigid. w th the outer member 104: of a mwbtiple disk clutch. The

inner lncinher 105 01 the; clutch is supported by the reduced portion 68 of the crank shaft, and by the hub of the bevel gear 101 and the members 10 1 and 105 of the multiple disk clutch are normally pressed toward each other by a coil spring r3. end of the portion 68 of the crank shaft, and the inner end of the sleeve is provided with a bevel gear which meshes with the pinions ':1 oppositethe bevel gear 101.

The spring 73 is supported hv a tubular extension 74 from the member 105 of the nn'iltiple disk clutch, and by an outward extension or rib 107 on the member 101 of the said clutch. IL brake hand 72 encircles the outer member 101 of the multiple disk clutch, and by means of th'is hand or ring the multiple dish clutch may be held from rotation. The operation of the above descrihed mechanism is as follows:-

\Vhcnthe engine is in the forward motion the multiple disk clutch locks the differential, so that all. the parts thereof including the elements 104; and 105 of the clutch and the cleinents 101, 102, 103, 106,

10?, and 71 rotate together, all of the ele ments above mentioned turning with the crank shaft 09. lNhen the brake hand 72 is tightened .on the element 104to'f the multiple disk clutch, this element is held and. the sleeve 100 which is keyed 'to-the portion.

68 of thecrank shaft rotates forwardly with the engine shaft. Thus the bevel gear 10.1."

is driven rearwardly turning the pinion 67 in the opposite directionto which it was turned when the engine was in the forward motion; i

The pistons, not shown, on the ,two-cylin-' (lo-r cngino indicated generally at 7521":

connected to the crank 70 of the crank shaft in the usual nianncr and the hrakehand 72 is operated by means of a lever 7 7 provided with the usual latch mechanism 78 for cooperatic; with. a toothed sector. not shown, to hold the lever in adjusted position. The lever is conncctcdtothe operating arm 79 of the hand by means of a flexible mctilier 80. and the said member passes over a piilley SLjoIH-naled on the main frame 11. A second lcvcr82 is pivoted on the main frame,

i l X a A sleeve 100 is journaled on the outer.

' may be changed.

is shown in Figs. 6 and 7.

as indicated at 83', and the lever has the usual latch mechanism 84- cooperating with a toothed sector 85 on the frame. to hold the lever in adjusted position. The lever 82 controls the engine in the usual manner.

A radiator 86 is mounted at the front of the frame; and is connected to the water, jacket of the engine by a pipe 87 having branches 88.' The pivotal connection between the main frame and the tractor frame The extensions 52 have the lower member 89 of a fifth wheel. secured thereto, the said lower member having a flange 90 at its lower end which is secured to the body 52 of the yoke by means of machine bolts 92. The upper end of the member 89 has an annular rib 93. which is received in a socket or cylindrical recess 9% in the front end of the main frame 11.

Ball bearings 95 are arranged between the rib and the side walls of the socket. and holding plates 96 are secured to the under edges of the socket, the said plates extending beneath the rib, to hold the lower member of the fifth wheel in thesocket. It will be evident that when the steering wheel 1.5 is turned, the toothed sector 1!) will be oscillated, to swing the tractor frame with respect to the main frame, whereby to guide the engine. The tractor frame is also mounted to rock with respect to the main fr'an'ie. The shoes 56 before mentioned limit the rocking movement, the said movement being on the journal pins 53. The angle of the column 5 with respect to themain frame Both the column and the main frame having opposing heads 97 and 98 respectively, and the inner faces of the head are toothed 'or r'orrugated radially. as shown more particularly in Fig. 4.. The teeth intergage to hold the parts in adjusted position. A bolt 99 is passed through central openings in the heads and is engaged by a nut 100 to hold the parts in adjusted position. It will be evident that by loosening the nut the heads 97 and 98' may be adjustcd'with respect to cach other, and may be held in adjusted position by tightening the nut.

in opt-ration, when the engine is running, the wheel i135 is driven forwardly or in the reverse direction. in accordance with conditions, and the said whccl drives the endless track comprising. the chair'r' above described forwardly and lays it in advance of the truck wheels 45, and the said wheels which support the machine .movc on the upper edges of the links 37 and 37". The frame may be guided by turning the wheel 15 as above mentioned. The hinge connection at permits the tractor frame toadjust itself to inequalities of the ground. The connection is a horizontal connection and the front end of the tractor frame may swing in either direction.

engine I claim 1. A traction engine comprising a wheel supported main-frame; a tractor-frame pivotally connected with the 111ain-frame; an endless tractor track carried by said tractorframe; means for turning the tractor-frame about its pivotal connection, to guide the and a motor to drive the tractortrack.

A traction engine comprising a wheel supported main-frame; a tractonframe pivotally connected with the main-frame; an endless trmstor-track; a sprocket wheel carried by the tractor-frame and engaging the tractor-track to drive it; means carried by the tractor-frame and co-acting with the sprocket-wheel to support .and guide said tractor-track in its course; means for turning the tractor frame about its pivotal connection to guide the engine; and a'motor to operate the track driving sprocket wheel.

3. A traction engine comprising a wheelsupported main-frame; a tractor-f amepivotally connected with the mainframe; an

endless tractor-track; a sprocket wheel carried by the tractor-frame and engaging the tractor-track to drive it; means carriedbythe tractor-frame and co-acting with the sprocket-wheel to support and guide said tractor-track in its course; supporting truck wheels journaled on the tractor frame and engaging the t actor-track; means for turning the tractor-frame about its pivotal connection to guide the engine; and a motor to operate the track driving sprocket wheel.

4. A traction engine comprising a rear axle; a column connected with the axle; a ll'ltllIi-fltllflfi adjustably connected with the column; a tractor-frame pivotally connected with the main frame; a tractor carried by the tractor-frame; means for turningthe tractor-frame to guide the engine; and a motor to drive the tractor.

5. A traction engine comprising a wheel supported main-frame; a tractor-frame pivotally connected with the main-frame; a, tractor carried by said tractor-frame; means for turning the tractor-frame aboutv its pivotal connection, to guide the engine; a hinge joint in the tractor frame to permit said frame to rock to adjust itself to inequalities of the ground; and a motor to drive thetractor. 1

(l. A traction engine comprising a wheel supporteih main-frame; a pivotally connected with the main-frame; a

tractor carried by said tractor-frame; means for turning the tractor-frame about its pivotal connection, to guide the engine; a

hinge joint in the tractor frame to permit said frame to rock to adjust itself to inequalities of the ground; means for limiting the movement of said hinge connection; and a motor to drive the tractor.

7. A traction engine comprising a. wheeltracttirframe;

supported main-frame; a tractorframe pivotally connected with the mam-frame;

. an endless tractor-track; a sprocket-Wheel carried by the tractor-frame and engaging the tractortrack to drive it; means carried by the tractor-frame and coacting with the sprocket-Wheel to support and guide said tractor-track in its course; means for turning the tractor-f 'ame about its pivotal con column extending" upu-aro column and extending forwardly therefrom, a tractonframe pivoted to the front end of the main frame for, turning; movement on a vertical axis, means on the main frame and engaging the tractor frame for-trawling the same, said frame having pairs of forward and rearward extensions, an axle supported in each pair of extensions, a wheel. journaled on each axle, one of the Wheels being a sprocket Wheel, the front axle being ad- 'justable toward and from the rearaxle, an

endless chain supported by the Wheels, a truck housing at the lower part of the tram-- tor frame between the wheels, truck wheels 'ournaled in. the housin and on a 'in the upper edges of the links of the chain, a motor siuiiported by the tractor frame, a crank shaft between the axles, and connected to the motor, and a reversible driving: connection between the crank shaft and the sprocket tractor-wheel;

9.1A traction engine comprising a rear axle, Wheels jonrnaled on the axle, a colinnn connected to the center of the axle the axle ,being adjustable with respect to the column to vary the inclination thereof, said column extending forwardly and upwardly, a main frame adjustahly connected with the column. a tractor frame pivoted to the front end of the main frame for turning'movement on a vertical axis, means on the main frame for engaging and turning the tractor frame,

driying Wheels journaled' on the tractorframe, and a motor connected with the drivmg wheels for driving the same, said wheels carrying an endless track, and truck Wheels supporting the tractor frame and engagingv the track.

10. A traction enginecomprising a rear axle, Wheels journaled on the axle, a column connected to the center of the axle, the axle being adjustable with respect to the column to vary the inclination thereof, said column, extending forwardly and upa nd forwa rdly, a main frame adplstably connects E with. the" same lame r wardly, a mam frame ad stably connected with the column, a traotonirame pivot-ed to the front end of the main frame for turnmg movement on a verticalaxis, means on the main frame for engaging and turning the tractor frame, driving Wheels jonrnaled on the, tractor frame, and a motor connected with the driving wheels for driving the same. M

11. A traction engine cornaxle, acolumn connected with the center of the axle, a main frame adjnstably connected with the column, a tractor frame pivoted to the main frame for turning movement on 3., axis. means on the-mam frame and vertical engaging the tractor fra'melfor turning the same to guide the cog-in the onnection lwtweeu the column and the r. ..n frame comprising a pair of circular he is each having radial teeth on its inner face, and the heads havingr'a central openand a, nut engaging the bolt,

12. A traction en the axle, connected with the column. a tractor frame pivoted to the main framefor turning movement on a vertical axis, and means on the main frame and engaging the tractor frame for turning the same to guide the engine.

1.3. A traction engine comprising :1 Wheel supported axle, a main frame connected with the axle, a tractor frame pivoted to the main frame for turning movement on a vertical. axis, means on'"the main frame and rising a rear mg. a liolt passingthrough the O'gJcIllHgS,

engaging the tractor frame for turning the said frame having front and rear pairs of extensions, the members of thelpair losing spaced apart laterally of the tractor frame, an axle meld in each pair-of extensions, a wheel jom'na-led on each axle, an er-l t l: Wh.eeils ji1-111'n: le(l on the tractor frame and engaging the track for supporting the ess track supported by the Wheels, l.

same, and a motor on the tractor frame connected with one of the Wheels.

lx-l. A traction enginecomprising a wheel supported axle, a main frame connected with the axle, a tractor frame pivoted to the main frame for turl'iing movement on a vertical axis, means on the main frame and engaging: the tractor f aims for turning the same, front and rear tractor wheels journaled in the tractor frame and adjustable toward and from each other, an endless track supported by the wheels, a motor supported by the t 'actor frame and having adriving, connection with one of the wheels, and truck Wheels engaging the endless track and journaled on the tractor.

15. A traction engine comprising a wheel supported mam frame, a tractor frame piv-,

oted tjo'thli main frame for turning movement on a vertical axis, front and rear Wheels journaled on the tractor frzime, said In testimony Whereoflhave signed niy wheels being adjustable toward and from name to this specification in the presence each other, an endless track supported by of two subscribing Witnesses.

the Wheels, means on the frame for driving 'ALFRED C. JOHNSON. 5 one of the wheels, and truck wheels jour- Witnesses:

naled on the tractor frame and engaging J. H. MCCOLLOUGH, Jr), I the track between the 'wheels. L. D HOBACK.

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