US97385A - Improved packer for railway-car springs - Google Patents

Description

P. G'. GARINER.

` Gar Spring.

No. 97,385. Patented Nov. 30, 1869.

[WTA/115.32

tutti otitis.

PERRY GL GrARDINER, OF NEW YORK,

Letters Patent No. 97 ,385, dated November 30, 1869.

IMPROVED PACKER FOR RAILWAY-CAR SPRINGS.

Theschedule referred to in these Letters Paterniand making part of the same To all lwhom it may concern! Be it known that I, PERRY Gr. GARDINER, of the city, county, and State lofNew York, have invented a new and useful' improvement for a Spring, Holder, and Packer, for Holding and Packing Spiral Springs for Railroad-Gars, with wool, cotton, cork, India rubber, or similar elastic fibrous substances; and that the following is a full and exact description of my invention, in connection with the drawings accompanying this, my specification.

Spiral steel springs having their cores filled and packed with a dense elastic filling, have beenfound exceedingly nsefnhand the greatly increased power of the two, when properly combined, has been found very valnablefor the purposes of railroad-car springs.

Hand iilling or packing was at first used, which was a slow, difcult, andjimperfect process. ward the filling or packing was performed by ama c hine'or apparatus, by which the wool or other packing was forced through a tube down into the spring.

By the latter process, the pressure required to pack tlie wool or filling into the spring also pressed coils together, and when the pressure was removed, the

.coils would spring back, leaving spaces in the spring not thoroughly illed or packed.

11n both processes, by h and and machine packing, a diliculty was experienced in the wool or packing bulging out and filling the intervals between the coils. rlhis bulging in the intervals required cutting or paring away, so as to leave the 4coils free to act. y

My improvement is directed to obviating these imperfections and difficulties, and consists- First, in lthe construction of a cylindrical` hollow case or hold( r, inv sections, separable and opening, so as to admit tue spring, and shutting in 'and closing it fit-st, the interior sides of the holder being provided with spirahprojections like the thread of' a'female screw, corresponding with the intervals between the coils and the pitch ot' the spring, by which the coils are held firm and immovable under pressure; and

Secondly, in combining with this arrangement a filler,-in which the precise quantity of wool or filling required is placed separately, and which filler is adjustable and removable, on or ol'` the holder, at pleasure; and

Thirdly, in a solid plunger or follower, combined and arranged with the filler and holder, so as to press the packing material through thc filler into the spring, and which is also adj ustable and removable at pleasure.

Figure 1, of the drawings, is a vertical cross-section, through the centre of the holder and the spring within it, of the filler in its place above it, and of' the follower or plunger therein. v

Figure 2 is a top view ofthe same.

After- Figure 3 represents, in vertical central cross-section, the holder and spring therein, being a modification of plan shown in iig. 1.

Figure 4 isa top view of fig. 3.

Similarletters represent similar parts in all the figures.

I construct my'improvements as follows:

Upon a suitable platform, A, fig. 1, is placed the hollow cylindrical shell B,the interior surface of which is circular', and corresponds with the size of the spiral spring S, to be filled or' packed.

' This shell or holder is divided vertically into two equal parts, -which ate' hinged upon the fixed vertical spindle C, so as to open wide enough to admit the spring, and, when shut, to embrace it closely.

A curved spring-latch, D, is hinged ,to onehalf' of' shell B, and, passing round, crosses the dividing line at right angles to it, and at its opposite end locks into a catch, E, fast in .the-other half of' the shell, and there held by the spring', and, by diseugaging which,

the shell maybe opened, and, when locked in thecatch, the two sides of the holder are firmly secured together.

The interior surface of the shell or holder is provided with a spiral thread or projection, b b, running from top to bottom, and corresponds with the spaces between the coils of the spring andthe pitch.

When the spring is placed within the holder and the two parts closed upon it, these projections b b just iill the intervals between the coils, or nearly so.

Instead of' carrying the spiral thread b b continuously around the interior surface of the-holder, I intermit it on one half of' the shell, (or on bot-h sides) leaving only projecting points or studs, as shown in iig. 2 atb b. These points or projections, however, correspond with the intervals of the coils and the pitch of the spring, and answer the same purpose as the continuous thread. I have found them convenient in practice, and easier constructed, and they readilyadapt themselves to the purpose required..

Upon the holder I place the filler G, g. l, which is a hollow cylinder, the interior diameter of which corresponds with the interior diameter or core of the spring.

It shuts down upon the top of the holder by ajoint, g, so that when in place.' shall be -lield sufiiciently firm there. This filler is so constructed as to be re' movable at pleasure, and replaced.

H is a solid cylindrical plunger or. follower, of the diameter of the interior ot' the filler, and fitting the ller closely, but sliding easily within it.-

At the base of the holder B is placed the solid disk a, having on the under side a short Apin which iits into an opening in the platform A. It is removable at pleasure. Its use is to form Ia base for the packing,

and to limit the line of the packing within the last coil. It also forms a pedestal on which to stand the spring when put into the open holder.

In figs. Sand 4 is shown a modification of my invention, so far as relates to the holder B.

In this the holder is divided into two equal parts, vertically, but, instead of' the parts being hinged and held together by the latch, they are held together by a ring, It, which slides on and off over the top. The exterior of the holder is made very slightly conical, so that. the ring, being pressed downward, brings the two halves homein close contact, and holds them firmly. The ring being removed, the parts separate.

The operationof packing the spring is as follows:

The coiled spring s to be packed is placed upon the base a', the holder being opened to receive the spring.

The holder is then closed and secured by the latch and catch D E. i

The filler G is supplied with the precise quantity of wool, cotton, cork, rubber, or other elastic fibrous niaterial, sufiicient to pack thespringto the density required. lhis amount is to be ascertained byexperiment with the tester and weighed. rlhe filler'is then supplied with the exact weight of filling required by hand.

In practice, it will be found convenient to have. a number of' these fillers to each holder, so. that they may stand by the operator ready to be used, and as fast as a spring is packed and removed, and another placed within the holder, a charged filler is in readiness, and being placed upon'the-holder, the operation proceeds rapidly, without loss of time in waiting for the filler to be cl'larged.

The follower or plunger H is then inserted into the filler, and caused to descend with suitable power to f'oree down the packing and completely fill the core of the sprin g.

The follower may be operated by any suitable maleiner.

chinery, like a drill-stock, or by a lever, or by a screw having the thread or pitch open, so as to give a suicient-ly rapid descent to the follower, and so as to stop, automatically, at the required point, when the filling has completely filled thespring.

Holders of different sizes must be provided for the diierent sizes of springs, and the filler and plunger correspond therewith.

By these improvements, packing the spiral springs is performed with accuracy and rapidity, and in a greatly improved manner. The exact weight or amount of material for packing is placed in the filler, and ready prepared for use, and there is no bulging out of the filling between the coils to be ,pared or cut away, and the spring is more complete and eficient than has heretofore been attained.

Having described my invention, and manner' of constructing and operating the same,

1. The holding and securing the spiral spring for packing, by means of a cylindrical shell or holder divided in halves, and provided with the interior female screw-thread, or the, points or studs to hold the coils and prevent their being pressed together under the pressure of' the filling or packing-process, arranged and' operating substantially as described.

2. The removable and adjustable hollow cylinder or filler G, in combination` with the holder and spring, arranged and operating substantially in the manner and for the purposes described.

3. The combination of followeeor plunger with the filler and holder and spring, constructed,` arranged, and operating substantially as described.

' P. G. GARDINER.

Witnesses: l

C. PH. WAGNER, J. B. STAPLES.

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