US397160A - Coin-controlled finger-pull - Google Patents

Description

(No Model.)

P. R. WHTE.

G01N CONTROLLED FINGER PULL.

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NirEn STATES PATENT OEEicE.

FREDERICK R. IVHITE, OF BOSTON, MASSACHUSETTS.

COIN-CONTROLLED FINGER-PU LL.

SPECIFICATION forming part of Letters Patent No. 397,160, dated February 5, 1889. Application tiled July 14, 1888. Serial No. 279,987. (No model.)

To all whom, it may concerne Be it known thatI, FREDERICK R. WHITE, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Coin-Controlled Finger-Pulls, of which the followingis a speciication.

.Illy invention relates to dynamoineters generally, and particularly to coin-controlled tinger-pulls, so called, which are contrivances designed to test or measure the strength of or power of pulling by a llinger of the hand, and which are constructed so that in their normal position the pull willbe locked against operation, but in which the locking means may be moved or controlled by a coin to release the pull and permit a single operation of the same.

It is the object of my invention to provide improvements in the nxeans for locking the device when in its normal position against operation, and releasing the pull from the locking devices by means of a coin, so as to permit the pull to be operated once, and not oftencr, by the use of a single coin, which improved means shall be simple in construction and certain of operation.

It is also the object of my invention to provide such improvements in iinger-pulls as will enable a register to be attached thereto, the construction and arrangement of the pull with respect to the register being such as that upon each operation of the former the latter will also be operated and register orindicate the number of such operations.

In order that a full and clear under-stainling may be had of my invention, I will proceed to describe the same, having reference to the accompanying drawings, forming a part of this speciiication, of which- Figure l is a side elevation of my improved finger-pull complete. Fig. 2 is a longitudinal sectional view of the same. Fig. 3 is a hori Zontal sectional view of the same, taken on the line 3 3 of Fig. 2, looking' upward. Fig, a is a front end view. Figs. 5, G, and 8 are detail views hereinafter particularly referred to. Fig. 7 is a top plan view of a portion of the device.

The same lett-ers of reference designate the same parts or features, as the case may be, in all of the views.

In carrying ont my invention I construct a casing, a, of suitable form and strength, and form therein bearings for the rod band its attached rack-bar c, so that said rod and rack-bar may be moved longitudinally in their bearings and be drawn out of the casing by taking hold of and pulling outward on the finger-hook (l, provided on the forward end of rod b and extending beyond the forward end of the casing, as shown. e designates a strong spring surrounding rod b, and bearing at its rear end against a projection or offset, or the like, at the rear end of the rod and against the casing at the forward end, so as to offer resistance to the pulling out of the rod.

The bar c is provided on its under side with ratchet-teeth f, with which the rearward end of a pawl arm or lever, g, engages when said lever is in its normal position. The pawl-lever g is pivoted or fulcrumed on a standard, 71, in the machine, though it might as well be fulcrumed on the casing, and its forward arm, g is slightly heavier or of greater speciiic gravity than the rearward arm, g?, so that, as has already been stated, the pawl g3 on the end of the arm g2 will be normally held in engagement with the ratchet-teeth f. The free end of the arm g2 is provided with a finger, g4, which extends laterally under the discharge end of a coin-chute, 1L', which chute is constructed and arranged to guide a coin (say a cent) inserted therein into position on the laterally-extending linger g4, and so overcome the weight of the forward arm, g', of the pawl-lever g and disengage the pawl g3 from the teeth of the rack-bar c and permit the rod b to be pulled out, as indicated by dot-ted lines in Fig. 2; but in order to prevent the coin from fully leaving the chute t' and falling' off from the laterally-projecting finger g4, so that the pawl g3 would immediatelybecome re-engaged with the ratchet-teeth of the bar c, I provide a stop, j, which may extend vdown from the rack-bar c and laterally under the pawl g3, so that while the pawl may be carried down by the coin far enough to disengage it from the teeth or notches in said bar, as indicated by IOO zo operate on the dotted linesin Fig. 9, it will be prevented by the stop j :from being carried down so far as to allow the coins'leaving the chiite and talling ott trom the laterally-projeeting linger g1, as will be understeml withoutfurther deseription.

rIhe deseriptien thus t'ar "given, it will be seen, tends only to show how, when the paris are in their normal position, the rod Ii will be Io locked against the pulling out ot' the same, f

and how, by the use ol a coin, the red maybe released lrom the locking, so that it earn be pulled out. In addition te these things, however, in v invention includes means whereby when the rod o is released l'rom the locking l means and drawn out to any appreciable extent, and then allowed to recede lo the same extent, it cannot be farther drawn out without again droppingI a coin into the chute yi to pawl g, as before explained. 'lln e means will next be described.

7.1 designates a li'rietion plate or clip extending tor a short distance beneath and along the rear side oit' the rack-bar fr, the forward 2 5 end of the portion of the clip beneath the bar reaching up close to the pawl g3, as seen in Figs. 2 and i5, so that it said pawl should be depressed and the triction-clip 7s should be moved forward a slight distance it would be 3o brought lunder said pawl, and so prevent the latter from engaging with the teeth of the 'rack-bar e, as is elearly shown in the detail view, Fig. 8. The friction-clip L is provided on its rear side with an Aangular part,

adapted to extend up along the side of the raek-l ar c', as shown by dotted lines in Fig. S, which angular part 7.a is provided with a block, in which is formed a short slot, nl, through which projects a pin, n, connected 4.o with the frame or casing a ol;l the device, so

that said friction-clip may have a limited movement on the bar c. The block Z may be made integral with the clip 7.', or be secured thereto in any suitable manner. The rearward end of the portion et the i'rietion-clip 7c under the bar o is preferably bent, so as to be frictionally engaged by the rack-teeth of the 1'aek-ba1, and be moved thereby to the extent permitted by the slot m.

It', now, a coin-say a @lente-should be dropped into the chute `1' and the pawl g3 disengaged from the teeth ot the rack-bar, as bet'ore described, the operator may take hold ot` the hook d, and b v pulling outward thereon draw said rod out against the tension ot' the spring c. In so moving the rod to an appreciable extent the friction-clip 7; will be carried lorward under the end of the pawl g3, so that, even though the stop ,7' be also 6o drawn forward and from under said pawl so as to permit the coin to tall from the chute and ott from the linger g", and the pawl to nieve upward toward its normal position, said pawl will not engage the teeth of the rack-bar c, but will be prevented from so do ing by the friction-clip 7b', as seen in. Fig. 8,

until said rack-bar is allowed to recede to an extent sut'tieient to carri7 the l'riction-clip back tar enough to move its forward end troni under thepawl, which distanee need be but slight, and will be limited by the slot in and the pin n.

As a means et indicatingI the number otl times that the device may have been operated, I attach a registering mechanism, o, to the rear end el' the device, which registering mechanism may be olf any ori'linary er suit` able construction whieh is eapable olf being operate `l one degree l'or eaeh movement or vibration ol the operating-lever y. I have not shown the eonstruetion olf the registeringI meelntnism in detail, lor the reason that, per se, it constitutes 'no part et' iny present invention, and may be ol well-knmvn organi lation. The :forward end olf the lever Vp is arranged to come in contact with the rear end ot' the ban e, or it may be ot' the rod l), as the same are moved rearwardly, and so be operated to move the indieating-lingers q ot' the registering mechanism one degree, as before stated, thus indicating the number ol' times that the device has been operated.

A graduated scale, l', is arranged on the easing or frame a at the sides oit' a slot, s, formed in said casing, and an indicating`- slide, t, constructed and arranged to be moved by the rod b or its adjunets, as the same may be pulled out or drawn forward, operates in said slot and on said graduated scale to indicate or mark the extent to which the rod had been drawn out. In the present :instance I have shown a strip, u, connected with the indicating-slide and extending back, with its rear end resting or bearing against the same part as the rear end of the spring c, so that as the bar is drawn forwarifl vthe indieating slide will be moved in the same direction.

Though I have been particular to describe the form and arrangement of the various parts of my improved finger-pull, it is obvious that these may be varied within the limits of mechanical skill without departing from the nature or spirit of the invention.

Having thus explained the nature of my invention, I would have it understood that what I claim is I. A 1inger-pull consisting of a frame or casing, a rod having bearings and longitudinally movable in said casing, said rod being provided with a linger-hook or similar device extending beyond the easing,whereby Said rod maybe drawn outward, a spring to resist the drawing outward otr said rod, a bar provided with ratchet-teeth connected with said rod, a pawl to engage the ratchet-teeth of said bar, a coin-chute to guide a coin into position on said 'pawl to disengage it from said ratehet-teeth, and a friction-clip having a limited movement on said ratchet-bar between said pawl and the teeth on said bar, as set `lorth.

2. The combination, in a finger-pull, of the IOO IIO

longitudinally-movable rod and its mekfbal, with the friction-clip 7.-., hm'ing a limited movement on said bei?, L pawl to engage and lbe disengaged from said raekbm3 and a' In testimony whereof I have signed my name to this specification, in the presence oEtWo subseiibing Witnesses, this 2d dey of July, 1888.

FREDERICK R. WHITE.

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