USRE2723E - Edsell totman - Google Patents

Description

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EDSELL TOTMAN, OFI COLUMBUS, j PENNSYLVANIA. Letter8-Patent No. 46,833, dated Marck 14, 1865; reissue No. 2,723, dated August 6, 1867.

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T0 WHOMfIT MAY CON CERN: l

Be it known that I, EDSELLTOTMAN, of Columbus, in the county of Warren, and State of Pennsylvania, have invented an improved Horse-Power 'for driving Sawing or other Machinery; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in whicb `Figure 1 is a' longitudinal section taken through the improved horse-power applied to machinery for sawing logs.

Figure 2 is a top view of the same. Figure 3 is an lenlarged longitudinal section through the horse-power, taken in the vertical plane indicated by red line z :u in iig. 4.

Figure 4 is a top view of thehorse-power. .y l

Similar letters of reference indicate corresponding parts in the several figures. l

This invention relates to a new and useful improvement of horse-powers which are adapted for operating log-sawing machinery, grinding-mills, andother varieties of machinery, whereA it is neither convenient nor Idesirable to use a steam engine. The invention is designed-chiefly to so construct a horse-power that. compact- I 'ness and'portability, with `a'gen'eral convenience of arrangement, are obtained without in any manner detracting from the ei-ciency of the machine as a mechanical power; at the ,same ltime a machine is produced which is very simple, cheap, and not liable to derangement, and which can vbe constructed, when the castings are obtained., by any ordinary workman.

The first part of my invention consists in the combination of a stationary spur-wheel having a driving*- shaft passing through its centre, and carrying upon one end a pinion spur-wheel, with a `rotating spur-wheel and pinion' applied on the shortest arm of a triangular or braced sweep, which latter turns about the axis of said shaft, and which 'carries the wheels around with it so as to transmit from the stationary wheel a rapid rotary motion to the driving-shaft, as will be hereinafter described.

It also consists in sustaining the revolving sweep, to which an animal is attached, by vmeans of a horizontal transverse brace, which is applied to a hub through which' the 'driving-shaft passes, and arranged over the stationary or master wheel, and in employing, in conjunction therewith, lower guides and stays arranged at v lright anglesto said cross-brace, as will be hereinafter substantially described, for the purpose of keeping the sweep, and the wheels which it carries, in va proper position, and preventing them from tilting or binding in their revolution about the driving-shaft, I

It also consists invproviding for the transmission or a rotary or a reciprocating motion direct from the' driving-shaft, when this shaft forms the airis of motion of a sweep, and is-driven by means of the latter acting through the medium of a stationary wheel and revolving wheels, as will be hereinafter substantially described.

To enable others skilled in the artto understand my invention, I will describe itsconstruction and operation.

In the accompanying drawings, figs. 1 and2, I have represented my improved horse-power applied to a framework, upon which two saws are mounted, one of which, R,`is a. circular saw, and the other a reciprocating straight saw. The frame A consists of two longitudinal beamstwhich are connected together at a suitable distance apart by means of transverse 'beams and a iiooring, over which latterjthe horse walks in his travel'. The horizontal transverse beam A', at one end of the frame A, is made very strong, and it is somewhat elevated so as to bring the sweep Dto a proper height for bitching a borse to it. This beam A', with its frame A, forms a solid and substantial foundation for supporting the parts which constitute vthe improved horse-power. Upon the top of beam A is a large spur-wheel, B, whichis constructed with lugs a a upon its inner edge, through which bolts pass that secure rigidly the wheel in place. A hole is bored vertically through the beam A, concentric to the stationary spur-wheel B, through which a tubular collar or hub, b, is passed, and suitably secured, so that its upper end projects above the horizontal plane of the .said wheel;v and through this hub a lshaft, C, passes, which I shall term the driving-shaft. The hub b forms a durable bearing for the driving-shaft,

end while it protects the wood surrounding it from wearing out rapidly by the shaft C, it also admits of this shaft being kept Well oiled, so as to turn freely.A

The sweep D is made of two beams, connected together at one ond by transverse beams Dl, so as' to foi-nr a triangle,A and possess strength and likeness. At a suitable distance from the'cross-beams Dl a bar`,'D2, is secured across the bottom sides of the longitudinal beams of the sweep, through the middle of `the length oi'` which bar a hole-is made for receiving the upper end of the hub li, as shown in figs. l and 8, thereby making this hub serve as the fulcrum ofthe sweep, and having-the axisof motion thereofl to coincide with 'the axis of motion of the driving-shaft C, as shown -iu figs. 2 and 4. This arrangement brings .the sweep 'over the stationary` wheel B, sothat should the former cant' laterally the ends :of the cross-bar D? will be brought upon said wheel. In practice the distance between the upper surface of the stationary wheel B and the bar l)7l is so slighty that the sweepcannot cant or tilt laterally to any injurious extent. i

Between the two cross-beams I)1 of the sweep D is a large `spur-wheel, E, which is keyed nn a short vertical shaft,c, which has its end bearings in said beams, as yshownin figs. 1 and 3. The wheel E -cngages with the teeth of a pinion-wheel, g,.which is keyed o n the shaftO. Beneath the large wheel E, and. keyed to its shaft,- c, is opinion-wheel, h, the teeth of which engage with those on Athe,circumference of the stationary wheel B, as shown in igs. I, 3, land 4. When the sweep Dis moved around it carries with it the two wheels E and h around theaxis of the stationary wheel B. The eifect of this movement will be to cause the .'said wheels to rotate about their axes, and communicate a rapidu rotary motion to the driving-shaft C. I I It is very important, with the above-*described'arrangement of gearing, to-have the sweep `move around in a plane parallel to the plane of the stz'ttionary wheel B, otherwise the teethvof the four-wheels will be liable to become broken, and the eli'ective power of the machine impaired. vIl have described a mode of preventing the sweep from tilting laterally; I will now describe a-mode of preventing it from tilting longitudinally.

Upon the lower cross-beam D a bracket, j,.is irmly bolted, onesend ofl which project-s inward beneath thea .wheel B, 'and is turned up, 'as shown` in figs. and 3. This bracket carries an anti-friction roller, z', which bears against the lower fiat side of the wheel B. Diametrically opposite this roller is another roller, k, which is applied to abracket, l, that is secured to a transverse bar, D4, and which bears against. the lower surface of said wheel B, and like the roller il travels around freely with the' sweep., These anti-friction rollers prevent either end of thesweep from being raised up or down, and consequently keep the spur-wheels always in proper gear, andprevent any injury to their teeth. The driving-shaft C extends a short distance above the npperfend of thehub t, `and also al short distance below rthe cross-beam A. On the lower end of this shaft C I secure a balance-wheel, I-I, for equalizing the movements of the gearing, and in the lower -face of this wheel, near its circumference, a wrist-pin, fm, is secured, to which is p ivoted, in a suitable manner, a pitman-'rod, I, which will comI'Imni'cate"aI rectilinear reciprocating motion to a saw, I, or to any other object. In the upper end of the v shaft C asocket is inadevfor receivinga removable shaft, C', which proceeds upward a. proper height, and carries on its upperend a belt-wheel or pulley, N, for communicating a. rotary motion to a circular saw, B., or any otherobject which it may be desired to drive. If-'a circular saw, R, be used for cross-cutting logs, it may be hungpin apvibratingfframe, Q, and driven bymeans of belts o p, so that while thesaw rotates it will move down toi the log upon the cross-frame S,as.shown in figs. 1 and 2.-.. If areciprocating saw he used, it will be pivoted at one end to a reciprocating cross-head, so .as to rise and fall in .the arc of. a circle.

I do not desire to confine my invention to the use of saws, as it is adapted for driving grinding-mills, churning machines, and all varieties of light-running machinery requiring one or two horse-power to run it.l

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

1i. In combination with a. stationary spur-wheel, B, having a. driving-shaft, C, passing through its centre, and which carries upon o'ne end a pinion spur-wheel,g, I claim the rotating spur-wheel F and pinion k, applied on the short arm-of' a. triangularsweep, D, which turns about the axis of said shaft, and carries these 4wheels E and h around with it,substantia'llyv as described.

2. v Sustaining the revolving, sweep Dnby means of a transverse brace, D2, which is applied loosely to a fixed" hub, b, through which the driving-shaft passes, said sweep being arranged over the stationary wheel B, and

vcarrying the wheels E and h, substantially as described. i

3. In conjunction with a Sweep, D, which turns freely around a fixed hun, b, and driving-shaft C, and which carries the spur-wheels E andi', upon one end, I claim the use of lower guides, l' k, cr their equivalents, applied beneath the stationary wheel B, substantially as described.

4. The sweep D, cross-brace D, hollow hub b, stationary wheel B, and the lower guides i k, arranged and operating in a machine, substantially as described. A i

' 5. In combination with the sweep D, revolving around a iixed hub, b, and driving-shaft C, and carrying the wheels E ,h around the stationary wheelfB, I claim the use of a Vremovable shaft, C', carrying a' drivingpulley; N, ysubstantially as described.

In combination with the sweep D, revolving around a ixed hub, b, and driving-'shaft C, and carrying the wheels E and h around the stationary'wheel B, I claim the use of a balance-wheel, H, carrying a wrist-pin, m, and Pitman-rod I, and arranged beneath the supporting-beam A' and frame A, substantially as described,

l EDSELL TOTMAN. Y Witnesses: i Enw. Scnnrnn,

WALTER HINcHMAN.

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