USRE13647E - wridbt - Google Patents

Description

J. WRIGHT, SAFETY GUARDIOR POWER PRESSES. APPLIOATIDH FILED OUT. 9, 1913.1

6 SHEETS-SHEET 1.

Reissued Nov. 11, 1913.

Q o o a gll J. WRIGHT.

SAFETY GUARD FOP. POWER PBESSES.

APPLICATION FILED 0019,1913.

1 8,6'7. 5 SHEETS-SHEET 2.

Reissued Nov.,11, 1913.

J. WRIGHT. SAFETY GUARD TOR POWER PEESSES.

APPLICATION FILED 001*v 9, 191a.

Reissu ed Nov. 11, 1913. 1 8,647. v 5 SHEETS-SHEET 3.

Fig.5.

J. WEIGHT.

SAFETY GUAED FOR POWER PRESSES.

APPLICATION FILED 9, 1913.

1 3,647. 6 SHEETS-SHEET 4.

Reissued Nov. 11, 1913.

J. WRIGHT.

SAFETY GUARD FOR POWER PRESSES.

APPLICATXQN FILED OCT 9, 1913. Reissued NOV. 11,1913. 13,647.

5 SHEETS-SHEET 5 on H ITED STATES PATENT orricn.

JAMES ware-Hr, or nnmrrxron, ONTARIO, can-Ann, ASSIGNOR or THREE-mourns 'ro WILLIAM'SIMPSON STACEY, or HAMILTON, ONTARIO, CANADA.

Specification of Reissued Letters Patent. neissud-Nov. 11 1913 Original No. 1,067,632, dated July 15, 1913, Serial No. 710,6l0. r. Application for reissue filed October. 9,

1913; Serial'No. 794,355.

To all whom it may concern:

Be it known that I, JAMES WRIGHT, a citizen of the Dominion of Canada, resid ng at 264 Cannon street east, in the city of Hamilton, in the county of ll entworth, in the Province offlOntario, Dominion of Canada, have invented certain new and useful Improvements in Safety-Guards for Power- Presses, of which the following is a specificat-ion. I

This invention for power presses and it has more particular reference to stamping press guards which are adapted to prevent injury to the :fingers' r willmore fully hereinafter appear, my in- 'vcnt1on consists incertainwnovel features of construction, combinations, and arrange-- or hands of the operator.

Itiswell known that presses-of the types I referred to are usually fitted with a clutchrocatoryrtoolto '25 7 tion when desired. Various safety guards of any appropriate type-interposed between the source of powernand the crank-0r eccentric orother mechanism actuating the reciprocating tool, -means such as a treadle or foot lever are provided for operating said clutch so as to cause the recip perform its effective stroke, axid .vice verse. to throw said tool out of acfor use in have been-heretofore suggested the mechconnection or in conjunction with I I anism fo throwing the reciprocatory too-l into operation to effectually/prevent the said tool being connected to the source of wer upon the operation of the clutch treadle for throwing said toolinto actionshould the fingers or thereof be in position to be crushed ,or njured by said tool, or in the event of any hand tool or other foreign body being accidentally placed ,or left in position' to be crushed or touched by said. safety guard or tool. v

The main object of my. invention is-to provide 'a safety guard, whichmoves or always travels slightly in with, the reciprocating A further feature of my inventionconsists in arranging the movement of the protective element proper to synchronize with contradistinction to devices heretofore constructed'which are all brought into the protective position by-the movement of the foot lever or treadle:

prior to the release of the clutch.

relates to safety guards press fitted with one safety guard.

the same machine but taken from the rear.

hands or any part respectively an, elevation advance of, andtool, and thereby positively insures the operator being warned of approaching danger.

readily attached thereto,

for power'p-resses. which acts as a brake'on the clutch .and automatically and instantly stops the further movement of the reciprocatorytool in the event of'any obstruction lying 1n the path of the protectiveelement during its descent.

- Another ob ect of my invention is to prov the operator is compelled to manipulate the stocik in a plane below the upper face of the lower die.

[vide a simple and effective means whereby for certain classes of work i With these and other objects in view, as

ments of parts hereinafter fully described,

illustrated in the accompanying drawings forming a part of this specification, and

more particularly pointed out in the appended claims.

D In the accompanying drawings, Figure 1, 1s a front perspective view of a stamping form of my improved Fig. 2, is a similar viewof thereof. Fig. 3, is an enlarged sideelevation of-the safety guard shown, inconnem tionwith the press illustrated by Figs 1 and 2, but with parts broken away, or in sec-' tion for the sake ofcl'earness. rear elevation of .Fig. 3. .Figs. 5 and 6, are and underside plan of one of the spring controlled plungers or gripping teeth hereinafter more specifically referred to. Fig. ,7,'is.

of'a stationaryand ad'ust'able guide bar or frame which maybe used inconjunction with my invention'where the stock has to be ,held or handled by the operator, during the process of stamping or cutting, and Fig. 8,

isafop plan view of the same.

Similar numerals of reference are employed to indicate corresponding parts throughout the several figures of the draw- .ings.

' .According to the form of my invention illustrated more particularly in Figs, 1 to 6, and which represent one formof stamping press having my invention applied thereto, and of which presses thereare sevcan have my device small modifications eral kinds, all of which 90 a detail sideelevation suit the male dieof the press to which the.

only being required in some cases to adapt said invention to the particular make of press. The stamping press for working on sheet or other metal shown in said figures consists essentially of a framework or base comprising standards 1, 1; a table 2-, on

which. the female .die 3, is conveniently bolted; a inaledie or punch 4, carriedby 'a vertically movable crosshead 5, which is guided in guides 6, 6, on the aforesaid standards 1, 1. 7, is a horizontalshaft jour naled in bearings 8, 8, at the upper ends of the standards 1, 1, and it is'provided with an eccentric or crank 9, connected with the crosshead, and a continuously-rotating drivingwheel or pulleylO, which is mounted on one end. of the shaft 7, and is coupled therewith or uncoupled therefrom by a clutch 11, all of which parts may be of any usual or suitable construction. The clutch 11. is of well-known form and is 'fitted with the usual tripping device or dog, by means of which the plunger or crosshead 5', is coupled thereto and caused to descend and ascend, and said dog is controlled by means of a connecting rod 12, coupled to the foot lever or treadle 13, which is under the action of a spiral or other suitable spring '14, in the known way. 15, is the protective element .or guard proper arranged, mounted and operated according to my invention as follows: This guardfproper 15, may he of.

any suitable pattern or contour in plan to device is to be attached, and, it is preferably fashioned with a laterally and rearwardly projecting lug l6,"to

permit of its lateral adjustment on a rod 17, furnished .with an eye piece 18, for adjustable connection to the lower end of an oscillatory rod .19. This oscillatory rod 19, is carried by a block .or pivotally mounted piece 20, and it is furnished at its upper part with a laterally or rearwardly projecting tooth 21, for the purpose hereafter to be explained. The pivo't'ally mounted piece 20, isas shown preferably pivotally connected by a pin 22, toa bracket'orbearing 23, conveniently secured on the press plunger. 24, is one of standards 1, Parallel with and rearward of the cross ties connecting the 1, together. the aforesaid rod'19, I arrange a depending and-rigidly secured rod 25, which is adapted to serve as a 'guidebor supportrforfladjustwhich has hingedly connected thereto a lever 28, fitted at its free end. with an antiable blocks vor stops 26, 27, theformer of friction roller-'29, adapted to contact with and be traversed'by'theaforesaid oscillatory to keep the roller 29, in

operative engagement with the'flos'cillatory rod 19, I a spring 30, one end whereof is connected to the] aforesaid lever 28, and the other end is attachedto an} adjustable collar. 31,5011 the o c l o y e 32, is

preventing-back motion of. the [and medially of said-spindle 39,

- or' lever52, which in turn is hingedly con a link or bar adjustably connected at 33, to the depending rod 25 and it is fitted at its forward end with a bent back portion 34, in which is revolubly mounted an anti-fric tion roller 35, which normally serves as a guide for the aforesaid oscillatory rod 19, but at the same time'it is so positioned as to cotiperate with the stop 31, for the purpose'hereafter explained. The rigid rod 25, is carried by a laterally and rearwardly-projecting bracket 36, to which it is adjustably ronnected by lock-nuts 37, 37, at its upper end, and said bracket 36, is conveniently secured to or carried by the upper partof the aforesaid framework 1, 1. the upper part of the framework mounoin brackets 38, 38, a shaft or spindle 39, which serves, when the aforesaid oscillatory rod 19, lS IIIOVBd rearwardly on its supporting center 22, to release the clutch locking mechanismnow to be described. This comprises a brake strap 40, in which are radially located a series of spring-controlled plungers or movable gripping devices 41, 41. Each of said gripplng devices 'Transversely of 1, 1, I

41, 41, comprises a shank portion 42, (Figs.

o and 6) of the cross-section shown by the underside plan in Fig. 6, and an extension 43, which is surrounded by a spiral spring 44, and said gripping devices are longitudinally adjustable by a lock nut or nuts 45. In the form of my invention shown these gripping devices are formed with butt ends, but inorder to effectively insure more instantaneous and effective action their inner ends may be toothed as shown at 46,'in

Figs. 5, and 6, whereby-when re1eased they are rendered doubly effective to arrest a further movement of the dog controlling the operation of the clutch 11, above referred to. v The gripping orarresting - de vices 41, 41, are arranged for radial move ment outwardby means of a strap 47, which is adapted to beconcentrically and radially moved by wiper arms 48, 48, furnished with anti-friction rollers 49, 49, conven iently housed in correspondingly shaped recesses in the aforesaid brake strap 40. These wiper arms 48, .48 are connected together by a cranked arm 50, so that when moved about their axes as hereafter explained,f the entire series of radially dis,-

posed gripping devices 41,41, are simultaneously raised or lowered into operative engagement with the clutch release. In order'to attain this end the grippin devices are arranged to all contact with the strap or concentric piece 47,'in such manner thatwhen the wiper arms 48, 48", are raised or lowered the-members 41, are simultaneously and synchronously raised or lowered.

51, F igs. 3 and 4, is a detent or pawl for spindle 39, I fix an arm nected at 53, to a rocking bar 54, provided with a depending portion 55, in which is 'rcvolubly mounted an antifriction roller 56,

' connecting pivotal pin 61, is passed as des pass the strap -or piece 20, may

side of the oscillatory rod 19.

will be readily seen secured to the side of the vice more sensitive;

either with the upper or arranged to normally contact with the front This rocking bar 54:, is slotted at its rear part 57 to provide a clearance and for the purpose hereafter explained.

58, is astop or pin on the underside of the depending portion 55, which restsnormally on the laterally and rearwardly extending bracket '36, that supports the rigid, rod 25, above described.

60, is a-lever adjustably connected at 61, to a link 62,-united hingedly at its lower end 59, to a lever 63, rigidly secured to the shaft or spindle of the lower wiper 48. Thus it, that when thelevers 60,-and 63, are raised or lowered the strap 47, will be moved radially Outward or in- .ward and thereby effectv the operation of the members 41, as above stated. Obviously the levers and link 60,62, respectively may otherwise connected so as to insure unifOrm-ity of action, and I wish it understood that I may fit one or both of said levers or link withhand grips in order to facilitate the returning of the several parts to their normal position. In. order to make ready provision for accurately adjusting the brake to different sizes of presses, I provide both the lever and link 60, 62, respectively with a series of holes, 64, 64, through which the sired.

65, 65, are clamping studs means of which the entire device is rigidly press adjacent .the clutch, and it is evident the holes through which the 47, are elongated to give the requisite clearance.

Obviously the pivotally mounted block be reversely located to the position shown and thereby render the defor example the parts may be so arranged that a thickness of stout paper interposedbetween the nnderface of the protective element 15, at the point 66, Fig. 3, and'the upper face of the female die will be quite suflicient to cause the oscillatory rod 19, to be thrown suiiiciently rearward for the projecting tooth 2-1, to contact lower rear end of the rock bar 54. Instantly such contact takes place the transverse spindle 39, is

turned about its axis and the lever and link 60, 62 respectively, are tripped, which throws the wipers 48, 48, past their supporting centers for the strap 47, whereupon the full force of the springs 44, 44, is brought into play and j the entire set of plungers 42, are radially projected inward and jammed in the path of the clutch dog thus instantly arresting its further driving for the tooth 21, aforesaid easier engaged by one or bolts byefiect or force. The action of these plungers is more than a hero clutch releasing action, for it is to be understood that the plungers exert a distinct braking and retarding effect upon the rotative element by which said dog is carried and by which motion is imparted to shaft 8 in a manner well known. This part of my invention will be clear to and fully understood by art to which it appertains and it will be further seen that by staggering the plungers 42, as shown in Figs. 3 and 4, the device is rendered doubly sensitive. Furthermore I may cross cut or notch the nose of the clutch dog itself to render it more efficient and or more of the plungers 42. P-m'ma facie, the rows of plungers 42, may be multiplied in staggered relation and I wish to here point out that by actual experiments I find that no matter what the size or weight of the press plunger or reciprocating part may be the device is instantly effective when the slightest obstruct-ion lies in the downward path of the protective element or guard 15. A'further important point to be'particularly noted in connection with my invention is the fact that the oscillatory rod 19, and guard 15, lie in planes at substantially right angles one to the other, and that the disto said point of suspension. Or, in' other words, a very slight movement or tilting of the guard 15, is considerably multiplied as regards the movement of the tooth 21. If no obstruction lies in the path of the guard 15, the oscillatory rod 19, 'is moved vertically up and down'with thepress plunger'to the rear of which it is connected bythe bracket 23, above referred to. Once the brake device is thrown into is effectively stopped and cannot be moved in. either direction until the operator goes forcing up .the parts to the position shown mostclearly in Fig. 3. Thus it will be clearly seen that no matter what the obstruction is in the path of the protective element415, it must be removed before further work can be operated 106, Fig. 1, is a stripper of appropriate pattern under .the influence of springs 109, carriedby the press plunge-r or cross-head 5. For certain classes of work it is essential that the operator handle the stock while being operated on, and in such cases I employ the device shown by Figs. 7 and 8, in combination with the guard'above described. This device consists of angle pieces, the vertical links.131, whereof are slotted at 132, and they are conveniently clamped to the sides of the press frame all those skilled in the in very large pressesor the guides 6, 6,

action the press plunger "11.0 behind-the press and raises the strap 47, by lever .63, and its connected when itcontacts with ;movement will synchronize with the stop 31,

member 15, will be and free from any over the strip 137, he Will be struck screws 133, 133, Which permit of the device being vertically adjusted, The lateral links 134, 134, of the angle pieces are turned into a horizontal plane and slot- tedat 135, 135, to rece ve clamping bolts 136, 136, which hold 1n place a strip 137. This device is adjusted so that the. horizontal links 134,134, are on.

a plane with the top face of the female die 3, With the strip 137, sufficiently in front thereof for the operator to manipulate his stock by putting his fingers below said strip. If the operator forgets and tries to handle his stock above the strip 137, the protective brought into operation andtnp the clutch locking brake before any damage-or injurycan be brought'about.

Obviously the angle pieces may be inverted and clamped to the table 2, of the press, Without departing'from the spirit and scope of my invention. f

This rigid attachment is particularly useful'for cases Where the operator is Working on cup-shapes having holes punched in their sides when it is necessary for said operator to hold the cup shape in place. In such cases the strip 137, will be set so a's'to compel the operator to handle his Work fro-lnunder said strip 137, Where his bands will be safe chance of injury. If he should forget and put his hand or "fingers descending stripper 106," or guard 14, when .the ress will, be instantly stopped asabove 'set forth. The top edge of the st-rip'137, will never be arranged or adjusted belowthe face of the "lower; 'die thereby rendering it impossible'to get the fingers over the guard and under thepunch proper.

The operation of my improved safety guard is briefly as fo1loWs: A's I descends, the guard 15, 'and, or stripper 10.6, will travel slightly in, advance thereof. If

there be no obstruction encountered said guard 15, and, or stripper 106, will be lifted th'eZloW'er die This contacting With the arm- 32, whereupon the rod 19,-Willbe allowed to\tilt rearwardlyin the slot 57,: Without engaging the rock bar 54,"that releases the clutch brake 40.

From the foregoing description and accompanying drawings it will be readily seen that by my inventionI provide an extremely effective and reliable device for the purposes interfering with the the press, all that i's'neces'sary being thetap-' 7 holes and insertionof set screws to attach the entire" device in posi-- set forth, While at the same time in no Way utility or'eificiency of ping of three or four tion.

Obviously invention maybe readily I adapted to. v machine having a reciprocatorytool'wor'kedany type'of stamping press or or operated-by a] clutch release mechanism,

asall partsare made relatively;adjustablei by the the punch 4,

the press,

and I Wish it'clearly understood that I do I not confine myself to thespecific arrangements and combinations of parts illustrated sible Without in any Way departing from the spiritiand scope of the, invention, and it is intended fully to includeall such; Within the present application, the appended claims. I 7

Having thus described my invention, What I claim as 'neW and desire to secure by Letters Patent, is:-

1'. In a safety'guard for stamping presses,

the combination With a driving member of the press, of a brake'element, a guard element, and means for causing said brake element to engage said driving member of the press When said guard element encounters an obstruction. I

2. In a safety guard for stamping presses, the combination With a driving member of the press, of a toothed brake member, a guard element, and means for causing said toothed brake member to engage said drivpress When said guard mg member of the element encounters an obstruction.-

; 3. In a safet'y guard for stamping presses,

the'combinat-ion With a driving member of a brake element, a guard elethe press, of ment, means for causing sa d brake element to engage said-driving member of the press 'vvhen said guard element encounters an obstructio-n, said brake member comprising a pluralityof radially disposed members, and

a connecting strap for all of said radially disposed members, whereby all of? said radially'disposed members are moved simultaneously to and from operativeposition.

1 a 4. In a. safety guard for stamping presses,

the combination with a driving member of the press, of a'brake element, a guard-ele- Inent, means for causing said brake element to engage said. drivingmember of the press when said guard element encounters an ob struction, said brake element comprislng a plurality of radially disposed spring actuall of said plungers pass.

' 5. In a safety guard for stamping. presses,- the combination with a driving member of the press, of a brake element, a guard element, means for causing said brake element to engage said driving member of the press When said guard element encounters an ob- "structioinsa'id' brake element comprising a plurality of radially disposed spring actu-.

ated plun-gers, anda strap through. Which all of said plungers'loosely pass. I

6 .In a safety. guard for stamping presses,

the' combina tion with a driving member of to engage said driving member ofthe; press and as limited by of a brake"element, a guard -element, means for causing s'aid'brake element 'ated plungers,'an'd a strapthrouzgh Which struotion, said brake element comprising an arcuate member, a plurality of radially disposed plungers passing through "said are ateimember, springs for forcng said plungers inwardly, and a strap tirough which all of said plungers passl.

7 Ina safety guard for st imping presses, the combination with a movable press member, of a braking mechanism, a press driving element upon which said braking mechanism acts, a controlling member for said braking m chanism, and a guard carrying element movable bodily with the movable press member and pirotal'ly mounted upon said press member and engaging and actuating said controlling member when tilted out ofnormal alinement.

8. In a safety guard for stamping presses, the combination with a movable press member, of a. restraining mechanism, apress driving element upon which said restraining mechanismacts, a controlling member for said restraining mechanism, and a guard carrying element movable bodily with the movable press member and engaging and actuating said controlling member when tilted out of normal alinement by the contact of the guard with an obstruction.

9. In a safety guard for stamping presses, the combination with a: movable press member, of a braking mechanism, a press driving element upon which said braking mechanism acts, a controlling member for said braking mechanism, and a guard carrying element movable bodily with the movable press member and pivotally mounted upon said press member and engaging and actuating said controlling member when tilted out of normal alinement by the contact of the guard with an obstruction, said braking mechanism comprising a plurality of radially disposed members.

10. In a safety guard for stamping presses, the combination with a movable press member, of a braking mechanism, a

press driving element upon which said braking mechanism acts, a controlling member for said braking mechanism, a guard carrying element movable bodily with the movable press member and pivotally mounted upon said press member and engaging and actuating said controlling member when tilted out of normal alinementby the contact of the guard with an obstruction, said braking mechanism comprising a plurality of radially disposed spring pressed members.

11. In a safety. guard for stamping pr'esses, the combination with a movable presg member, of a braking mechanism, a pressdriving elemeht upon which said, braking mechanism acts, a Fontrolling member for said braking mechanism, and a guard carrying element movable bodily with the movable press member and piyotally mounted uponsaid pres's member and engaging and actuating said controlling member when tilted out of normal alinement by the contact of the guard with an obstruction, said braking mechanism. comprising a plurality of radially disposed toothed plungers.

12. In a safety guard for stamping presses, the combination with a movable press member, of a braking mechanism, a press driving elementupon which said braking mechanism acts, a controlling member for said braking mechanism, a guard carrying element movable bodily with the movable press member and pivotally mounted upon said press member and engaging and actuating said controlling member when tilted out; of normal alinement by the contact of the guard with an obstruction, said braking mechanism comprising a plurality of radially disposed spring pressed members, and a common actuating member for all of said plungers.

13. In a safety guard for stamping presses, the combination with a movable press member, of a braking mechanism, a controlling member for said braking mechanism, a press driving element upon which said braking mechanism acts, a guard carrying element movable bodily with the movable press member and pivotally mounted upon said press member and engaging and actuating said controlling member when tilted out of normal alinement by the contact of the guard with an obstruction, said braking mechanism comprising a plurality of radially disposed toothed plungers, and a common actuating member for fall of said plungers. I V

14. In a safety guard for stamping presses, a restraining brake comprising an arcuate member, a plurality of radially disposed brake elements,.means for actuating said elements in one direction,'a press actuated member for actuating said elements in the opposite direction and against the tension of said means.

15. In a safety guard for stamping presses, a restraining brake mechanism comprising an arcuate member, aplurality of radially disposed spring pressed plungers mounted therein, a common actuating strap for all of'said plungers, cranks arranged adjacent each end of said strap and ar-,

ranged when actuated to move said strap against the tension of said springs, a memcarrying rod passing through said control-- ously, a guard carrying element bodilymov able with and pivoted upon the press plunger, and means for actuating said cranks when said guard carrying elementis swung out of normal alinement by con tact with an obstruction.

17. In a device of the character described, the combination with a vertically movable press plunger, of. a rod pivotally mounted thereon and bodily movable therewith, a guardelement carried by said rod, a re straining brake, anactuating member for saidbrake through which said rod travels, the tilting of said rod-upon its pivotal point when the guard strikes an obstruction serving to move said brake actuating member.

18. In a device of the character described, the combination with a press and its vertically movable tool carrying member, of a guard carrying rod pivotally mounted upon said plunger and bodily movable therewith, a guard carried by said guard carrying rod, a restraining brake mechanism, an operating member for said brake mechanism, said guard carrying rod traveling inIa cutout portion of said operating member, and a projection carried by said rod and adapt: ed to engage and actuate said brake controlling member when the guard carrying described,

rod is tilted upon its pivot.

19. In a device of the character the combination with a restraining brake, of a controlling member therefor, a guard carrying rod passingthrough said control-v ling member and movableina cutout p.ortion thereof, a block pivotally mounted upon the press plunger and through which-said guard carrying member passes, and'a guard carried by said guard carrying member.

20.7,In a device of the character described, 7 the combination with a restraining brake,

of a controlling member therefor, a guard ling member and movable inafcut out port'ion thereof, a blockpivotally mounted. upon tlie'press plunger and through which said vguard carryingmember passes, and a guard" carried by "said guard carrying member,

said guard lying substantially at right angles to the guard carrying member. w

, path of said guard,-

21. In. adevice of the character-described, vthe combination witha restraining brake, of

a guard carrying rod pivotally mounted" upon the press plunger and bodily movable therewith, a guard carried by said guardv 'carryingrod, a-controllin'g member for the brake mechanism, an anti-friction roller car-r ried by said controlling member and bear- .1 4 v v i .v 7 v ing against-the guardcarryingrod, "a fixed member, a lever pivotally mounted-thereon," ian anti-friction roller carried by said lever bearing uponthe guard carrying rod, and

aspring connection between said lever and said guard carrying rod,

22. In a device of-the'character described,

the combination with a restraining brakemechanism ofa shaft mounted upon a fixed portion of the press frame, a horizontally disposed controlling member, an arm carried by said shaft to which one end of said controlling member is'pivoted,' and means actuated by said. shaft for controlling the brake mechanism.

23. In a-device of the character described,

the combination with a restraining 1brake mechanism, of a shaft mounted upon a fixed portion of thepress framefia horizontally disposed controlling'member', an arm carried by said shaft to which 0119 endnfsaid trolling member is pivoted, means actuated by shaft for controlling the brake -mechanism', a'guard carrying rod, a guard carried by said rod, and'means carried bysaid'rod for actuating said controlling mem-- her when saidrod is tilted out of vertical alinement.

- 24:. In a device of the character described,

the'combination with a restrainingmecha-j nisin', of-a shaft mounted upon a fixed por tion of. the press frame, a horizontally disposedcontrolling member, an arm-carried by said shaft to which one end of said con-' trolling member is pivoted, means actuated by said shaft for controlling the brake -mechanism, a guardcarrying rod, a'guard carriedloy said rod, and means carried by said rodfor actuating said controlling member'whensaid', rod is tilted out of vertical alinement, said rod being 'pivotally mount- "ed upon andtraveling with the press plunger. y

25. In a device of the character'described, 4 the combination with a stainpingpress, of Ja vertically movable guard, and, a. fixedmember arrangedin such position that the stock must be handled'therebeneath and so keep the fingers of tlie operator out of the Signed at Hamilton, Ontario, 'Canada,

In the presence of- ALFRED T. BRATTON, Gnirrin NICHOLSON."

copies of this patent-may be obtained for fiv'e centsneach, by addressing the Commissioner of Patents,

' 7 Washingtonfl). 0;

Images