US1269060A - Hand-controlled hydraulic press. - Google Patents

Description

G. E. DAVENPORT.

yHANDCONTROLLI-QD HYDRAULIC PRESS.

l Afmcmon man M644. 1`9`r6.

1.269,060 l -Patnted'lune 191.8

3 SHEETS-SHEET 12.

TIG EOKGEl DAVENPORT of New'Jersey,

GEORGE E. nAvENronr, or cnminn, msw- JERsnY.

Enma-comunali HYDRAULIC rnnss.

Specication of Letters Patent.

-Patented June 111-, 1918..l

' Application ined nagaan, 1ere. serial No. 114,814.

To all/whom t may concern.'

Be it known that I, GEORGE a citizen of the United States, residing at Camden, in the county of Camden and State have invented certain. new and useful Improvements in AHand-Controlled Hydraulic Presses, of which the fol' -th lowing is a specification, reference being had ,to the accompanying drawings.

This invention relates to hydraulic presses andparticularly to'presses of this character used for stampmg the liatrecord tablets or record disks used in talking machines.

One of the objects of this invention is to provide a construction of this 'character lwhich-is semi-'automatic in its action, in that after beingset byhandit is automatically released.

A. further object of this invention is to provide a press of this character with die carrying plates so arranged that hot water or steam may be caused tol circulate through the plates, or cold water may be caused to circulate and in this connectionto provide means whereby `live steam may be caused f to circulate through the die holders prior to the insertion of the record blank and that whenhydraulic pressure is applied, this live steam 1s immediately turned off and cold water'is caused to automatically take its place in the circulation system of the die or die holders. The object o'f leaving steam in the dies is to keep the stock soft until the pressure is applied, whereupon the stock is chilled and hardens quickly.

A further object is to provide a' machine of this character with a pivotally mounted buck-head which supports an upper matriX ordie and provide means for lockin this buck-headin its operative position, 'and means for raising the buck-head after the locking means are released. A,

Other objectswill appear in the course of the following description.4

My invention is illustrated in the accom-V panying drawings, wherein:

Figure 1 is a section on the line 1-1 of Figv 2;

Fig. 2 is a section on' the line 2-2 of Figl;

Fig. 3 is an elevation of the upper end of the press;

Fig. 4 is a di'ametrical section through one Vof the die"holders or dies and the matrix;

andI

showing the steam 'arms 19. Extending Fig. 5 is a section on the line 5-5 of Fig. 4.

Fig. 6 is a fragmentary top plan view the d1es.

Referring at my improved hydraulic press comprises a housing 10 which is provided with a detachable the mechanism which operates the buck-head and the locking bars.

Mounted upon the upper end ofthe hous- -ing 10 is a relatively heavy `base plate 12 b ored out tn provide the cylinder .13. v Extending upward from the base 12 on each side of the base are three standards 14, these standards being connected at their upper ends by an integral cross bar` 15, and these standards being with the base 12. tical inner, faces and outwardly wardly inclined outer faces and form guides for the piston and for the buck-head as will be later shown.- Disposed between the standards 14 are the ylocking arms 16 there being a pair of these locking arms on each side The standards have ver# and down- 4 of the machine. The locking arms have more or less the same shape of the standards, but at their upper ends are formed With the inwardly projecting heads 17, the under faces of which are horizontal. These locking bars are pivotally mounted upon transversely ex-v tending bolts 18 and the locking bars extend downward below. the bolts .'18 forming downward from the 20 which. are formed suitable character for a transverse rock shaft 21. Keyed upon this rock shaft 21. and between the bearings of the brackets 20 is a sleeve 22 having the spaced disks 23, these disks being preferably slotted so as to secure lightness. The lower ends of the arms 19 are connectedby means of links 24 to the 4disks 23 by means of bolts 25. The link 24 which engages with one pair of locking arms 16 is vpivotally connected to the disks 23 at a point diametrically opposite the pivotal connection ofthe other link 24. It will thus be seen thatiwhen the member 22 is turned in one direction, the arms 19 will be drawn together and when turned in the other direction the arms 19will be forced apart. For the purpose of rotating the shaft .21, I mount upon the shaft the crank arm 26 and mount upon abearng bracket 27,

base 12 are brackets with bearingsf'ofiany and water connections tol to these figures, it' wi11 be seen.

base plate 11, and which incluses preferably made integral Mounted upon a shaft-:28 which' has a crank' arm 'QSlS-co'nnected by a link 30 tothe crank arm 26.-

.34 is attached 'by screwsorother means to the lower end ofthe :the upper end ing plate 36 and-the die or matrix'vh'older,

.errer Portion,

v. l ing plate.,-

. Extending 'through-the base 12 and tothe center of the cylin er 13 is a-duct 32 which is connected to a `source of liquid under' pres# sure. Operating Withintthe cylinder .13 -is a loose piston 33 'whose l' faerorti'on is 're duced to ii within the .Cyl-infer, -while itswhich is preferably formed is'` greater' in dlameter.

the cylinden Theplate" as a separate' block than .the diameter of iston. Resting upon of the b ook 33F'is an adjustdesignat'ed 37.-,is mounted uponthe adjust-.

of carrying the upperdiie,

l For the purpose l provide a buck-head 38 "which operates.v

between the standard 14 andwliich has a rearward extension Anions 40. which engage' with sup 4orting- 3?) formed with tran-j brackets 41 extending upward from t ebase. The extremity of the huekfhead; arm or eintension 39 is operatively connected by means Y ot two links 42 to 'an arm 43 mounted upon weights tend to turn- I caring osition as to 4'raise' uch-head may ever, into its operative position however,

.by meanso a handle 48 mounted upon the end face'of the buck-head. Mounted upon holder 49.' Y

i have the same character thebuck-head. is the 4upper die or matrix The dies or matrix holders 37 and '49 both and one of the dies is illustrated in Figs. 4 and 5. The upper faceoi the die 3? (or the lower face of the die 49) is recessed as at50 to receive the matrix 5 1, there being a central stud or pin 52'l which engages the center oi the matrix. Outward of the relatively slight recess 5@ there is a relatively deep annular. recessed whose exterior and interior walls are screwthreaded as zit-54. A locking ring 55 engages in this screw-threaded annular recess 53, the locking ring having a flange 56 whichl projects over the edge ofthe matrix. 'llh'e locking ring of course, has openings 5i for the reception of a wrench. -4 On its under face the die is formed withv a relatively wide annular recessdeiining an outer wall 59 anda central hub'O. The 'inner face of the outer wall and the outer face of the hub] are screw-threaded. The

' die plate i's'formcd with a plurality. of ap?. 'v

p roximatelyconcentric grooves 61 forming circulating ooilsar'ranged Yas illustrated in the'shaft 28 is an operating casing designated generally water.: The duct ,able character.

ferrand in hydraulie'presses'for `contro 'ton from expandin lows. The record ne s of the two stock has been placed upon the lower die, -buekhead is then pulled down which closes'- the buckvhead moves downward it bears against .the beveled ends-ff? Fi 5, and closing the 'open `:sides co1' sis a plate 62 which has`screw.-tlurearl'edy enga 'Preferably i there are. grooves, 'both merging the center of the f vcally opposite portions of the die. 'The oeninto each other at passage 63 'to .an outletduct or pipe and passage gement with hub-'GO- and 4the wall 59.5 two serie'spf {these} "I0 e hut endlng at dlametri- 'ter of the die is connected byj'means oflajl t e areconnectedone to a steam'inletpipe' -66 andthe other to` acoldwater inlet pipe 67.

rlhese pipes Gdand 67 -ext'end 68 of anyA suit able .character trolled by a lever' 69 operating over a sector 7G. 'lf his valve casing is, of course, connect'- ed to a, source of steam and a souroeof 63 of eachdie'is connected to a waste. pipe 7l.. The detailed construc-l tiono the casing v:md valves is notillustrated inasmuch as t a 'source'oi fl any suitable pipe to a lwaste pipe 73;f the pipe 72 and .waste a valve in turn ,operated have not shown in detail the ,constructipn for' this valve as it isv the valve ordinarily ng and the outlet 72' which' is connected the inlet of water theretov therefrom. Preferably the iforms part of the-piston is provided lwith source ofcold water so as to ke@ the pisin the cylinder.

The operation o the inventlon 1s as upon the bottom matrix plate.. Live -steam 1s flowingthrough blockitIY which i loc a water way therethrough connected witharoi! stock which 4is ini a pre." heated and relatlvely soft state is placed' die 37 which supports the to a valve v l 'au' ,havinggtherein valves con-A is maybe of any suit# 'llhe duct' 32'is connected to' water under 'pressure by means yao Thdsp'assage throu h` pipe is controlled y by-a lever 74. 'li-,r

the double coils or channels oi?l thislower die land -the'upper di The object of hav? in steam-circulating through these chan-` until' the pressure is applied, as the stock, when chilled, hardens quickly. h

the machine. As

of the locking heads 17 andI forces the lock-v ing heads apart. vlAs; soon as the buck-heald` has Vpassed. below the locking' heads, looking bars 16 Vare shifted. inward so as vto hold the buck-head from any upward movel ment. 'll'he linstant the machine is closed hy;`

l pressure.- of 220,0 pounds per square applied-,- the live steam `11o dies is to keep the stock l- Y( After the thusbringmg the rec ice

,claim 1s:

mennen l Cold through the dies for about water is let flow thirt)7 seconds, the pressure on he piston released and the operating leve'r is thrown everto the-,posi- .tion which will open the lock bers which allows the buck-head to rise to an open position.` through the action of 'the counter- Weights `47. The record is then taken out,

fresh stockis placed inthe press and the foregoing operation' repeatedft This machine can turn outjover 550 'records in e day of ten hours.

Having described my inventiomvvhat l. A die'of the'character described having a' recessed outer fac@v groove deeperthan the screw-threaded interior and' exterior walls, and means lfor holding a `matrix in seid recess comprising'- a serewethreaded ringlhe after whichy it is turned oit;

,the `pair 4 an outer annular recess and having lng e enge on its inner edge and dapted to engage vin said screw-threaded recess.

In a press for stamping phonographie records, e die 'having e, peir of fluid circulating grooves, of channels formed-therein, .of ehannels being approximately parallel and extending in e spiral course :fromI the center of the die toward the eireum'ferenee thereof, the channel terminating at diemetricallv on osite oints of .the die there being en outlet duct communicating with both of said channels at their inner ends,l the outer ends of the Channels being respectively connected to a source of steam and a source of cold Water.

In testimony whereof I hereunto aiix Iy signaturefin the preseneeof two Witnesses. p GEORGE E. DAVENPORT.

Witnessesr CEAS. B.. Bonntron,v

RALPH We HAUTES'.

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