US96636A - Improved traction-engine - Google Patents

Description

6. N.AT|BBL`Es.

Traction Engine. I

Pa-tented Nov. 9, 1869.

E: El

Witnesses: y W fera N. PETERS. PMOTOMTMOGRAPHER, WAsNxNGToN, Dv C.

@gaat alla.

GEORGE N.- TIBBLES, 0E HUDSON CITY, NEW JERSEY.

Lette/rs Patent No. 96,636, dated November 9, 1869.

Y f IMPRovED TRACTIoN-ENGINE.

The Schedule referred to in these Letters Pa/tent and making part of the same.

To all whom it may concern:

Be it known that I, GEORGE N. THsBLns, ofthe city of Hudson, in the county of Hudson, and State of 'New Jersey, have invented a new and improved Traction-Engine;4 and I dg herebydeclare that the following isa full, clear, and exact description thereof, which will enable others skilled in theart to make and use. the same, reference'beng had to the accompanying drawings, forming a part of this specification.

The present invention relates to cert-ain new -and useful improvements in the construction of a tractionengiue, which is intended to take the place of the ordinary dummy-engines now in use; the object of which is to avoid the necessity of putting on an extra pressure of steai'n, tociascend a steep incline, by the use of a movable fnlcrum in' a slotted lever, connected with the cross-head, hereinafter more fully described, the constructionand operation ofwhich will be fully understood from the following description, in which-- Figure l reprents a plan. v

Figure 2 is a longitudinal section through the line Figure 3 is a det-ached side view of one of the drivewheels. Figure 4 is a cross-section through the line y y.

Similar' letters'of reference indicate corresponding parts. t

In this case, the letters A A' represent two small steam-cylinders, set ona suitable fram-e, B. Y

The. piston-rods of the,` said cylinders are attached to their respective cross-heads, O and C.

D and D' are slotted levers, which connect -the aforesaid cross-heads with the connecting-rods E Ev These levers, D and D', are adjustable, so that the. length of stroke may be regulated to suit the requirem'ents, either of speed or in order to use additional power in ascending au steep incline.

The said levers are adjusted by means of raising or lowering the sliding racks F F', which are operated upon simultaneously, by turning the hand-wheel G.

The' pin or set-screw H, which runs through the slot in the aforesaid levers, is fixed in the slide l", thus forming a movable fulcrum for the said lever.

I is a pawl, which locks the pinion J, and-thus serves to hold the fulcrum fixed in any desired position.

l l are connecting-rods which connect the crossheads of' ctwh engine to their respective cranks, L L', which are intended to stand at right angles to each other, so as to overcome the dead-centre.

These cranks have one shaft, common to b oth, ou which there are twoecceutrics, M M, which Work the steam-valves.

N isa fly-wheel, on the said shaft, by which to vstart the engine.

Thedrive-wheels 0 O' are constructed with a groove or channel, P, which is turned perfectlytrue.

In this groove ory channel tljee is a traveller, Q, pivoted to the loose arm It onthe axle, and kept in position by the spring S.

The letter T represents a cross-piece on top of the pivot of the traveller', on each end ot' which Athere is a pin, over one of which the connecting-rod will hook, so as to cause the said traveller to bite or grip the drive-wheel.

For example, when litis desired to go forward, the connecting-rod will llook on the lower pin, and when it is desired to'reverse or run back, the connectingrod must be raised'soasto engage itself in the'upper lll.

It will be noticed that the said connecting-rod is bent or cnt away at the point marked U, so as to allow the throw ofthe rod to have a full sweep. These rods E E are set at right angles to. each other.

This traction-engine is steered v by a wheel, V, in front, which is operated by'I the hand-wheel W, on whose stemtherel are teeth, which mesh inthe wheel X on the pivot which supports the said wheel V'.

The connecting-,rods E E and E' E are shifted from a forward to a backward motion,0r may be disconnected altogether, by means of .pushing the levers Y from one side to the other, which will cause the shaft on-which the pulleys Z are set, to turn, and thus draw on the band o r cord, as shown in red.

Having thus described my invention,

I claim as new, and desire to secure by Letters Patent-l l. The combination of drive-wheel O and traveller Q, with connecting-rods E E, operating as described', to give motion in either direction.

2. -'lhe combination of the lever Y, pulley Z and shaft which rotates it, with band X, all arran 'ed as described, to shift the rods E E tO a-fbrward Or backward motiou,.or to disconnect them altogether. j

, 3. A traction-engine, constructed, arrauged,fand Operating in the manner and for the purpose substantially as herein shown and described.

4. In combination with slotted lever, the rack, pinion, detent, andhand-lever G, to change the fulcrum H, in the ,manner specified.

5. The combination, with the piston of a steamcylinder, of lan actuating-lever, D, vmoving upon a fulcrum readily adjustable by the driver, in the manner speciiie-d, whereby the power may be easily increased or diminished, without changiu g the pressure ofsteaxn.

The above specification of my invention signed by v'me, this 4th day of J une, 1869.

GEORGE N. TIBBLES.

Witnesses FRANK BLOOKLEY, ALEX. F. ROBERTS.

Images