US1017084A

US1017084A - Pumping device.

Info

Publication number: US1017084A
Application number: US56977310A
Authority: US
Inventors: Thomas Danquard
Original assignee: TC AUTO PNEUMATIC ACTION CO
Current assignee: TC AUTO PNEUMATIC ACTION CO
Priority date: 1910-06-30
Filing date: 1910-06-30
Publication date: 1912-02-13
Anticipated expiration: 1929-02-13

Description

PUMHNG DEVICE. APPLIQA'IQN, ULEB JUN'ES0,1910,

Patented. Fen 13, 1912] NITED STATES PArnNTorricn THOMAS DANQUARD, OF NEW YORK, N. yY., ASSIGNOR TC -AU'IO PNEUMATIC ACTION l' CO., A CORPORATION OF NEW YORK.

Specification of Letters Patent.

PUMPING DEVICE.

Patented Feb. 13, 1912.

Application filed .Tune B0, 1910. Serial No. 569,773.

To all 'whom t may concern.'

Be itknown that I, THOMAS DANQUARD,

a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented a new and useful Pumping Device, of which the following -is a specification.

This invention relates to a. bellows and folding pedal construction for a musical in strument. l

The principalobjects of 'me invention are to provide a'simple and effective construction by which the bellows can bevoperated from a pedal located at the side thereof in such a way as to get a perfectly even strain on the bellows, thus doing away with the` Vloss of power produced by the usual sidey connections and reducing thestrain on the parts. l

Another object of the invention is to pro vide means for accomplishing the above named results which can be connected with a folding pedal, particularly that type of folding pedal shown and described in my 14, 1908 on a folding pedal.

Further objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which- Figure l is a transverse sectional view of a portion of a piano case showing a preferred embodiment of this invention in side elevation with the pedals in operative po sition; F ig.2 is a similar view showing the pedals folded into the case; Fig. 3 is a vfront elevation of the same; and Fig. 4 is a similar View cfa modification also coming Withinhe scope of this invention;

lThe invention is shown as appliedto a piano case A provided with an opening l0 at its front sidefwhich may be closed by any of the usualgdoois or other .devices when the pedals are not in use. At tliebottom ofeit` is a lower rail l1. A brace or wind box 12 extends crosswise of the case. The .rigid leaves 13 of the bellows are secured to said brace and to brackets 14 and the movable leaves or members l5 of the bellows are pivoted near the topv of the rigid leaves. Y.

18 designates a pedal support which may have small feet provided with rubber cushions. The pedals P-P are hinged or piv- '55 oted to this support. Rigidly secured to previous Patent No. 884,643 granted April the support are braces 20, shown herein as bent over the lower rail 11 so as to lit closely to it when the pedals are in operative position and as being pivoted to the brackets 14 behind the lower rail.

It will lbe understood that the parts so far described are shown herein in substantially the same form as they appear in the fabove mentioned patent, and that they are so shown to illust-rate how this invention can be applied toa folding pedal construction. It will be obvious that the invention is applicable to other types of folding pedals.

. It will Vbe understood that each pedal is shown in Figs.` 3 and 4 in position at the side of the bellows itoperates, or betweerl the two, so that the pedals are not in line with the centers of the bellows. This is thc usual location and as a consequence of'this it has been customary heretofore to provide a pitman or link to'eonneet each pedal with its bellows located substantially between the pedal and bellows and connected with the edges of both. struction there has been an uneven strain on the movable leaf of the bellows, and the pedals have a springy feeling when they are being operated. Moreover, ion account of this side connection the hinged ioint at the top of the bellows is strained and considerable power is lost, thus adding to the difficulty of pumping. To obviate these dithcultics each pedal in this case is connected with the bellows by means of a link 1S) and an arm Q5. This arm is fixed to a horizontal shaft 26 mounted. in bearings in brackets Q7 that are located ou the fixed leaf of the bellows. Therefore the operation of the pedal will result in oscillating the shaft. The shaft is provided with another arm 28 which extends down at the end of the shaft and in the center of the bellows and is connected by a link 29 'with a bracket SiO-fixed to the bottom of the movable leaf and in the center thereof. By this construction it will be seen-that a perfectly even and uniform pressure is applied to the movable leaf and there can be no rocking motion to strain the hinge or lose power.

ln the form of the invention shown in Fig. 4 a similar arrangement is shown which accomplishes the same results, but in this ease the link 19 is pivoted directly to a link -31 which is pivoted to a bracket 32 at one On account of this con.'-A

which the links 19 and 3l. are pivoted to each other they are also pivoted to an arm 33 which is fixed on, or forms part of, a horizontal shaft 34 extending across the fixed leaf of the bellows. This shaft has another arm 35 at the corresponding point on the other sidewhich is connected by a link 36 with the other bracket 32. In this way the same results are secured.

lWhile I have illustrated and described two preferred embodiments of the invention I am aware that .many other modifications can be made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims.-

Therefore I Vdo not wish to be limited to all the details of construction herein shown and described, but

1 Tl1e combination with a bellows having a fixed and a movable leaf, of a pedal located at the side of the bellows, a shaft journaled on the fixed leaf, and two arms on opposite ends of the shaft, one connected with the pedal and the other with said movable leaf.

2.' The combination with a bellows having a fixed and a movable leaf, of a folding pedal located inposition to fold in at the side of the bellows, bearings on the fixed leaf of the bellows, a horizontal shaft mounted in said bearings, a connection between the shaft and folding pedal at one side of the fixed leaf whereby the operation of the pedal will oseillate the shaft at the center of the fixed leaf, and means on said shaft for moving the movable leaf of the bellows when the shaft is oscillated.

8. The combination with a bellows having a: fixed and movable leaf, of a folding pedal located in positionto fold at the side of the bellows, a link on the pedal at the side toward the bellows, an arm pivotally connected with said link, a shaft on the bellows on which said arm is mounted, and means on said shaft `for exerting an evenly balanced `pressure on the movable leaf of the bellows when the shaft is turned, said means comprising an arm on the shaft, and a link pivoted to said arm and to'the movable'leaf of the bellows, said link and arm being in line with each other and with the center of the bottom of said movable leaf.

4. As an article of manufacture, abellows having on the fixed leaf thereof a shaft provided with an arm at the center of said leaf pivotally connected with theother leaf and having at the end of the shaft and at the side of the bellows an operating arm.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses.

'THOMAS DANQUARD. `Witnesses VILLTAM J. Klinnn'y, WILLIAM J. KARTEN,