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Publication numberUS921755 A
Publication typeGrant
Publication dateMay 18, 1909
Filing dateSep 9, 1908
Priority dateSep 9, 1908
Publication numberUS 921755 A, US 921755A, US-A-921755, US921755 A, US921755A
InventorsThomas Volk
Original AssigneeThomas Volk
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Mechanical training-machine.
US 921755 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)


ump/- Thomas Z/E/- A. @www Zzz's atm-'neg ms NoRRls PETERS co., wAsHmaroM-n. c,





To all whom it may concern:

Be it known that I, THOMAS VOLK, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Mechanical Training-vachines, of which the following is a speciiication.

My invention relates to improvements in mechanical training machines, the invention being specially designed for use in training schools, gymnasiums, and similar places, for the exercising and training of men in walking, running, etc.

The primary object of my invention is to provide a generally improved machine of this class which will be exceedingly simple in construction, cheap of manufacture, and eilicient in use.

The machine is adapted to be operated by any convenient motor, and is preferably provided with cyclometer and speedometer attachments whereby the distance traveled and time consumed in such travel may be readily ascertained, and in this connection, suitable means may be provided for regulating the speed with which a person must travel on the moving track way in order to remain at a certain location relative to the fixed frame of the machine.

Another object of the invention is to provide means for supporting and cooperating with the upper or track forming member of the endless track-web whereby said upper or track forming member is maintained in a horizontal plane and provides a uniform treading-surface.

l/Vith the above mentioned and other ends in view, the invention consists in the novel construction, combination, and arrangement of parts illustrated in the accompanying drawings, and particularly pointed out in the appended claims.

Referring to the drawings forming a part of this speciiication, Figure 1, is a side elevation of the machine constructed in accordance with my invention, a portion of its frame being broken away for the purpose of clearer illustration. Fig. 2, a top plan view of the same, a portion of the moving track way being broken away for the same pur- Fig. 3, a rear end view of the improved machine. Fig. 4, a view of a portion Speccation of Letters Patent.

Application led September 9, 1908.

Patented May 18, 1909.

Serial No. 452,233.

of the under side of the improved endless track-web Similar numerals of reference designate like partsthroughout all the figures of the drawings.

The improved machine comprises a frame consisting of side beams 1, connected at their ends by means of cross bars 2, and carrying intermediate cross beams 3, said cross beams 3, supporting a pair of longitudinally-extending supporting beams 4, forming trackweb-supporting friction-ways for supporting the upper or track forming member of the improved endless track-web hereinafter described. rlhe side beams 1, are supported by and mounted upon standards or legs 5, and are provided immediately above said standards 5, with a second set of standards 6. The standards 6, are secured at their upper ends to the ends of a pair of longitudinallyextending side or track-way guide-boards 7, adapted to cooperate with the upper or track forming member of the endless track-web as hereinafter described. The ends of the track-way guide-boards 7, are provided with standards or uprights 3, carrying at their upper ends a pair of side bars or guide rails 9. The side beams 1, are provided with a pair of stationary bearing blocks 10, near one end and a pair of movable bearing blocks 11, near the other end, said bearing blocks carrying the ends of cross axle-shafts 12 and 13, respectively. The axle-shafts 12 and 13, are each provided with a pair of pulleywheels 14 land 15, disposed within the side beams 1, and on the outer sides of the trackweb-supporting friction-ways 4. The movable bearing blocks 11, are slidably mounted on the side beams 1, and are adapted to be adjusted by means of a pair of adjusting bolts 16.

The endless track-web comprises a pair of endless drive members, in the present instance, in the form of endless belts 17, mounted upon and carried by the pulley wheels 14, and 15. lf desired, the endless drive member 17, may be formed of chains of any suitable and convenient form. rihe endless drive members 17, carry a plurality or series of cross slats or bars 1S, said cross slats having their ends secured to the outer sides of said drive members. A series of anti-friction rollers 19, are mounted on the under sides of said cross .slats by means of bearing lugs 20, said anti-friction rollers being staggered or arranged alternately'in rows on the under sides ot 'said` cross slats and along the inner marginal edges oi said endless drive members, as shown most clearly in Fig. 4, ol the drawings. This arrangement of the anti-friction rollers prevents them from coming in contact with each otherI during the passage of the endless track-web over the pulley Wheels la, and l5, as indicated in Fig. l, of the drawings. The two rows of rollers are adapted to travel upon the track-web supporting vfriction ways 4t, during the upper or track form revolution of the endless track-web, thus forming a uniform treading surface for the track-way and distributing the 'weight or` the exerciser. rl"he rollers 19, are held in contact with the fric` tion ways 4, and the cross slats 18, are maintained in a substantially uniform plane by means orp the track-way guide-boards 7, the inner marginal edges ol which take over the ends of said cross-slats 18.

The machine may be operated by any suitablel and convenient driving mechanism, said driving mechanism, in the present instance,` comprising a driving shaft 2l, mounted in a bearing block 22, on one of the side beams l. The driving shaft 2l, is provided with pulleys 23 and 24, the inner or smaller pulley 23, being provided with a belting 25, in the present instance, passing over one of the pulley wheels 1'5. The outer or larger pulley 24, may be provided with a belting communicating with any suitable and convenient source oi power.

From the foregoing description, taken in connection withthe accompanying drawings, the operation and advantages oi' my invention will be readily understood.

' Having thus described my invention, what I claim and desire to secure by Letters Patena-is*V l. ln a mechanical training machine, an endless tracl -web comprising a pair of endless drive members, a series of cross-slats having their ends secured to the outer sides of said endless drive members, andia series of staggered anti-friction rollers secured to the under sides of said cross-slats and within said pair of endless drive members.

2. In a mechanical training machine, an endless track-web comprising a-pair of endless drive-members, a series of cross-slats having their ends secured to the outer sides of said endless drive-members, and a series of anti-friction rollers secured to and arranged alternately in rows on the under sides of said cross-slats and along the inner marginal edges of said endless drive members;

3. ifi mechanical training machine, comvprising a frame provided with a pair of axleshaits each carrying a pair of pulley-wheels, a pair ol web-supporting beams mounted intermediate the pulley-wheels of each pair and extending between said shafts, an endless tracl-web mounted on said pulley`- wheels and provided on its under side with a` plurality oliv staggered anti-friction rollers traveling on said web-supporting'beams, and tracl -way guide-boards taking over the marginal edges of the upper or track forming member oi said endless track-web whereby said anti-friction rollers are held `down in contact with said web-sup orting beams.

lntestimony whereof lphave affixed my signature, in presence oi two witnesses.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3332683 *Mar 18, 1965Jul 25, 1967Jimmy J RandPhysical conditioning treadmill apparatus
US3489408 *Sep 20, 1965Jan 13, 1970Goodrich Harold ESimulated surf and surfboard
US3554541 *Mar 3, 1969Jan 12, 1971Faye SpothExercise treadmill with convex surface
US4364556 *Oct 20, 1980Dec 21, 1982Nissen CorporationEmergency shut-off switch and frame assemblies for exercise apparatus
US4548405 *Feb 7, 1983Oct 22, 1985R. Clayton LeeTreadmill with trampoline-like surface
US5492517 *Oct 27, 1994Feb 20, 1996Nordictrack, Inc.Exercise device
Cooperative ClassificationA63B22/02