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  1. Erweiterte Patentsuche
VeröffentlichungsnummerUS688416 A
Veröffentlichungsdatum10. Dez. 1901
Eingetragen31. Mai 1901
Prioritätsdatum31. Mai 1901
VeröffentlichungsnummerUS 688416 A, US 688416A, US-A-688416, US688416 A, US688416A
ErfinderJohn Martin Hopphan
Ursprünglich BevollmächtigterJohn Martin Hopphan
Zitat exportierenBiBTeX, EndNote, RefMan
Externe Links: USPTO, USPTO-Zuordnung, Espacenet
Pedalling mechanism.
US 688416 A
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Beschreibung  (OCR-Text kann Fehler enthalten)

No. 6aa,4|s. Patented 086.10, |901. J. M. HOPRHAN.


(Application led May 31, 1901.)

(No Model.)




SPECIFICATION forming part of Letters Patent No. 688,416, dated December 10, 1901.

Application filed May 3l, 1901.

To all whom, it may con/ocra:

Be it known that LJoHN MARTIN HOPPHAN, a citizen of the United States, residinglat Ohicago, ih the county of ACook and State of Illinois, have invented certain new and useful Improvementsin Pedaling Mechanism, which are fully set forth in the following specification, reference being had to the accompanying drawings, forming a part hereof, and in which:-

Figure l shows my said piano pedaling device in front elevation. Fig. 2 shows an end elevation of the same, partly in section, and with parts removed to give a free View of what is to be shown.

Like reference-letters denote like parts throughout both views.

The object of my invention is to produce a mechanical device wherewith the pedals of pianos may be operated by players of short or ungrown stature. To attain said desirable end, I construct my said device in substantially the following manner, namely:

On the pedal b is placed a pedal-pillar,which consists of a rod t', with a base c resting on the pedal b and a head d for the foot of the player. Said rod il reciprocates in a guidingtube @,which is held by an adjustable bracket f, held on the under side of the foot-table j, from which projects a screw-stud h, with a wing-nut g. Said stud passes through a long slot f (shown in section) in the bracket, whereby said bracket may be set toward or from said table, also in any lateral direction.

In about the longitudinal center and near the farther edge of the table j is a rod t, reciproca-ble in a tube u, attachedv to the vertical part of a right-angled rod or arm o, whereof there is a horizontal part provided with a wedge w, having vertically-projecting teeth 102 on its upper edge and horizontal surface, which is parallel with the face of the bottom of the instrument a and of which the base is at the farther end, as shown, and to said wedge is a counterpart wedge out of which is cut a channel xl to admit the horizontal part of the rod o, and under said wedge is placed, when necessary, a board y, on which the wedge ne slides and wherewith the teeth 102 are driven into the lower face of the instrument a. A nut a binds the parts a i' into fixed adjustment.

senti No. @2.484. (No man.)

Near the near edge of the tablej and near each end thereof are rods or pillars k, which slide in tubular floor-pillars m on bases n. Said pillars are fixedly connected by a truss o and a revoluble rodp playing in a pair of lugs o at each of its ends on the pillars m, and between said lugs are pawls s, whereof the points pass through openings in said pillars into notches Z in the parts 75. A horizontal rod, with weight q, fixed into the shaft 5p, throws the points of said pawls into said notches Z. This construction for holding said rods is only an illustration of one of many obvious ways for adj listing the table j. Mechanism like the parts g o' s may also be applied to the part u for the adjustment of the foot-- table.

The placing of the Wedge w sets the part zt in close to or distant from d, which correspon'dingly places and then iixedly holds said table to its position. The adjustment of the bracket f places the pedal-pillars in their true position. Said pillar/i may also consist of adjustable parts held together by parts u' z, similar, for instance, to the parts t it fr.

l. In pedaling mechanism the combination with a vertically-ad j ustable table and a pedalpillar, of supporting mechanism for said pillar radially reciprocable and angularly adjustable relative to the table, substantially as specified.

2. The combination with a vertically-adj ustable table and automatically-acting pawls to hold and release said table, of a bracket under said table, horizontally adjustable on a pivot, and a reciprocable pedal-pillar in said bracket, substantially as specified.

3. The combination with a vertically and horizontally adjustable pillared table, means to hold said table iiXedly in a horizontal direction,and automatically-acting pawls to adjust said table in its vertical direction, of a horizontally-adjust-able bracket secured to the under side of said table and a freely-reciprocable pedal-pillar in said bracket, substantially as specified.

4. The combination with a vertically and horizontally -adjustable pillared table and means to hold said table iikedly in said positions, of a horizontally-adj ustable bracket secured to the under side of said table anda ICO outer faces and said outer faces being parallel to each other, subsmnbially as specified.

fureely-reeiproeable pedal-pillar in said bracket, substantially as specified.

5. The combination with a pedaling-table,

:L Wedge, and an arm 'no the edge end of said JOHN MARTIN HOPPHAN' 5 Wedge, of a longitudinally-grooved wedge op- Witnesses:

posed to said armed Wedge, the contact-faces WM. ZIMMERMAN,

of said Wedges being inclined to their opposed B. EVART SHERMAN.

Referenziert von
Zitiert von PatentEingetragen Veröffentlichungsdatum Antragsteller Titel
US2468977 *29. Dez. 19473. Mai 1949George L HobbsPedal extension and footrest attachment for pianos
US2618171 *3. Juli 195018. Nov. 1952Grover C CurtisFootrest and auxiliary throttle pedal for vehicles
US2694946 *11. Juli 195123. Nov. 1954Joseph D VandalPortable dual control mechanism
US4656914 *24. März 198614. Apr. 1987Weisser Karl WStool and auxiliary pedal for a keyboard instrument