US401968A

US401968A - And john walker

Info

Publication number: US401968A
Authority: US
Publication date: 1889-04-23
Anticipated expiration: 1906-04-23

Description

z (No Mod-e1.) 2 sheets-sheet -1'.

J. RICHARDS 8v J. WALKER.

MACHINE IOR DRIVING MANDRPLS, KEYS,-&0.

` Patented Apr. Z3, 1889.

M ffm/L I N. PETERS. Ph' linnn-naher, Walhngtun, DA C.

2 sheets-sheet 2, l J. RICHARDS R J. WALKRR. A- l f MACHINE FORDRIVING MANDRELS, KEYS, 6m.

- No.. l l PatentedRpr. 23, 1889.

l. Bv( IIII\ ii l .A fl 1' WITNEEEEE- A V1m/ENT13m5- UNITED STATES PATENT OFFICE.

JOHN RICHARDS, OF SAN FRANCISCO, CALIFORNIA, AND -JOHN VALKER,

OF CLEVELAND, OHIO.

MACHINE FOR DRIVING MANDRELS, KEYS, 80.0.

SPECIFICATION forming part of iLetters Patent No. 401,968, dated April 23, 1889. Application filed June 19, 1888. Serial Ilm-277,571. (No model.)

To all whom it may concern:

Be it knownthat we, JOHN RICHARDS, of

San Francisco, in the county of San Francisco and State of California, and JOHN WALKER, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain Improvementsin a Machine for Driving Mandrels, Keys, dac., of which the following is a specilication.

This invention relates to certain improvementsin a machine whereby mandrels, keys,

l and a variety of other similar devices may be driven or forced through the hubs of wheels and pulleys, and in fact through any piece of machinery in the manipulation of which such devices are employed, by a succession of rapid blows delivered on the upper end of the mandrel or key.

The said invention consists in a ram adapted to have a short rapid vertical reciprocating movement through the medium of a rotative eccentric connected thereto, the said ram having a head which is fed down independently of the reciprocating movement of the ram proper throughthe 'medium of a screw which connects it to the said ram and is turned by means of a hand-wheel. The ram mechanism is placed directly over an anvil-block which is supported by the bed-plate of the machine and on which Vthe pulley or wheel to be operated upon is laid.

In the further description of the said invention which follows reference is made to the accompanying drawings, forming a part hereof, and in which- Figure I is a `part-ly4 sectional front eleva tion of the improved machine, and Fig. II an end view of the same. Fig. III is a sectional view of a part of the machine, and Fig. IV an exterior View of anotherportion 'of the same.

Similar letters of reference indigate similar parts in all the views.

In the said drawings, A is the bed-plate of the machine, onwhichis erected andsecnred the anvil-block B.

C C are columns extending from the bedplate A to the girder D, secured in place by means of the bolts a.

E is the ram, consisting of a hollow cylinder adapted to have a vertical reciprocating driven.

movement within a sleeve, F, formed as a part of the said girder. The inner diameter of the sleeve Fis considerably greater than the outer diameter of the ram E, and from the interior face oi' the sleeve are projected the bearings b, which guide the said ram in its reciprocating motion.

On the upper end of theram is fastened by means of bolts c a hollow cap, d, through the openingl e of which extends in a horizontal direction the driving-shaft G. This shaft is supported in bearings f in the sides of the sleeve F, and the portion within the cap d is turned slightly smaller than the remaining portion and eccentric with it. A box, H, in two parts, serves to communicate motion from the eccentric to the ram inthe operation of the machine. The eccentric is denoted in the drawings by g.

The driving-shaft is provided with a tight and a loose pulley, L and M, and also with a balance or fly wheel to cause a regular movement of the machine. The top of the sleeve is removable to give access to the eccentric and its box.

I is a threaded bar screwed into a nut, h, held securely in the lower end of the ram, and the lower end of this bar constitutes the ramhead which strikes the mandrel or key to be The threaded bar I is turned to lower the ram-head by means of a hand-wheel, J. A pin, 7c, in the bar I serves to limit the motion ot' the same in a downward direction by st Ibiking an offset, m, in the ram.

In Fig. I a gear-wheel with a turning-mandrel in its hub is shown as resting on the anvil-block. In order to suitmandrels of different sizes, we provide each machine with a set ofreducers, all of which have their lower end of the same diameter as the hole in the anvil-block. One of these reducers is shown in Fig'. IV.

Supposing a wheel or pulley provided with a mandrel to be seated on the anvil-block, as shown in Fig. I, and the machine to be in motion, the driving operation consists simply in feeding down the rain-head toward the mandrel as the same recedes under the rapid strokes to which it is subjected by means of the handwheel.

IOO

IVe claim as our inventionl. In a machine for driving mandrels, dsc., a reciprocating ram having a head which is rigidly connected thereto by means of a threaded bar, and a hand-wheel to turn thc said bar, substantially as and forthe purpose specified.

2. In amachine for driving mandrels, Lize., a reciprocating,` ram having a head rigidly connected thereto by means of a threaded bar, and means whereby the said bar may be turned to feed down the said head independently of the reciprocating motion of the said ram, substantially as and for thepurpose specified.

In a machine for driving mandrels, &c the combination of a sleeve, a ram confined within the said sleeve and adapted to have a recilln'ocating,` motion therein, a driving-shaft extending through the said sleeve, which is provided with bearings to support the said shaft, an eccentric formed in the said shaft, and means, substantially as described, to connect the eccentric with the ram, a ram-head united with the ram by means of a screw carrying a hand-wheel, and an anVil-blocksituated under the said ram-head, substantially as and for the purpose specified.

4. In a machine'for drivingl mandrels, &c., the combination of a frame carrying a sleeve with laterally-placed bearings, a ram adapted to slide in the said sleeve, a ram-head connected to the ram by means of a threaded bar having means whereby it may be turned in the said ram, a driving-shaft supported in the said lateral bearings on the sleeve extending through the sleeve and provided with an cccentric, a. laterally-sliding box to communicate motion from the eccentric to the ram, and means to effect the revolution of the said driving-shaft, substantially as and for the' JOHN RICHARDS. JOHN NVALKICR.

XVitnesses to the signature of John Richards:

E. II. THoMAs, M. C. HAMLIN. Vitnesscs to the signature of John lValkcr:

ALEXANDER S. TAYLOR, WM. G. TAYLOR.