US1001858A - Safety-guard. - Google Patents

Description

J. M. JONES.

SAFETY GUARD.

APPLIOATION Minn 1111;. a, 1911.

1,001,858. Patented Aug. 29, 1911.

JAMES MELVIN JONES, OF HAMILTON, ONTARIO, CANADA.

SAFETY-GUARD.

Specification of Letters Patent.

Patented Aug. 29, 1911.

Application filed March 9, 1911. Serial No. 613,370.

7. '0 all whom it may concern:

Be it known that I, JAMES MELVIN JONES, a citizen of the Dominion of Canada, residing at 22 King lVilliam street, in the city of Hamilton, in the county of Vent-worth, 1n the Province of Ontario, Dominion of Canada, have invented a certain new and useful Safety-Guard, of which the following is a specification.

This invention relates to a safety guard and it has more particular reference to that type of device which is adapted for use upon punching, stain ing, cutting, embossing and drawing presse and similar machines as a safe uard against the operators fingers or hands getting caught when the operative parts are brought into use.

My invention has special referenceto the gate and its appurtenant parts which are moved up and down in front of the operative parts by means of a fulcrumed lever and it has for its objects to provide a gate for safety guards for stamping presses and the like which is adjustable laterally and vertically to adaptitself to different widths and sizes of presses or machines, while at the same time it effectively guards the ends of the dies or cutters. I attain these objects by the mechanism illustrated in the accompanying sheet of drawings, in which Figure 1, is an elevation of the complete guard as attached to the fulcrumed lever which raises and lowers the same. Fig.2, is a top plan of the same. Fig. 3, is an end view looking to the left of Fig; 1. Fig. 4, is a de tail view of the sliding block which couples the safety guard to the fulcrumed lever. Fig.

5, is a central vertical section of the, same taken at right angles to Fig. 4. Fig. 6, is an isometric view of the block carrying the gate supporting arm or bar. Fig. 7, is a detail transverse section of the means for connecting together the laterallymovable parts of the gateand the aforesaid supporting arm.

- Fig. 8, is a detail of a key-piece hereinafter more-specifically referred to.

Like reference numerals designate the same or similar parts in the several figures.

In order that my invent-ion may be clearly understood I will now describe the same in conjunction with the above specified drawings, which exemplify one embodiment thereof as applicable for use on a stamping press of any of the ordinsf ry and well known types. a

.press "wvhen in position, coupled to the fulcrumed lever 1,by means receive the outer end of the afores block may be adjusted in 'arm or barv 15,'which 1, is a fragmentof the front end of the fulcrumed lever which is pivoted at one side of the press for operating the guard gate, its arrangementand actuatmgconnechons be ing not illustrated as they form no part of the present invention, and theywill be readily understood by those acquainted with the art to which the invention'fipp -ltains. The 1e ver 1, is of rectangularcross section, andaccording to myinvention I longitudinally serrate or otherwise suitablytooth-jthe upper face thereof at 2, for a predetermined distance. V 4 I 3, is a bar of rectangular cross-section which is correspondingly serrated or toothed transverselv at along it. lower face,

tions or teeth 2, aforesaid. This bar'3, is arranged to extend; across the front of the and it is rigidly of a box-shaped block 5, whichis provided with two lateral slots 6, 7, arranged at right angles to and one above the other but medially intersecting, as will be clearly under,

stood on an examination of Figs. 4 .and 5.

The lower slot 6, is adapted to receive the end of the fulcrumed lever 1, andtheup er slot 7, to receive the serrated end of the ar 3, and in order to firmly lock said parts together, I fit into a threaded bore 8, at the lower end of the block 5', a cap-screw 9..

Thus it will be seen that by slackening the cap-screw 9, the block 5, and bar 3, may be adjusted longitudinally of the end of'the fulcrumed lever 1; or the 'bar- 3, and block 5, may be withdrawn from the end of the fulcrumed lever 1, and said,bar 3, adjust-ed transverwly either to the right or left. hand,

and replaced, whereupon thecap-screw 9,'is tightened up and displacement ,m either direction effectively prevented.

10, is a second box-shaped block which is provided with a lateral slot 11, ada ted to aicfbar 3, to which it is rigidly coupled by means of a cap-screw 12, ta threaded bore 13, and by this means said position at any point along the bar 3.

'14, is a vertical slot formed at the rear of the block 10, in which is fitted a; depending carries at its lower end the gate hereinafter fully described.

4, for a suitablev distance. said serrations, or teeth being adapted for engagement by the' sex-raw 1 mg into a cogrespondmgly so I The depending arm or bar 15, is formed at one of its upper edges with a laterally toothed or serrated portion 16, with which cooperates a similarly toothed or serrated key-piece, 17, furnished at its upper and lower ends with lugs or ears 18, 18, which fit snugly against the top and bottom faces of the block 10, and prevent its displacement. Obviously the slot 14, is made sufficiently wide to allow the key-piece play enough for the vertical adjustment of the arm and 19, is a cap-screw fitting into a correspondingly threaded bore 20, for insuring locking engagement of the parts 16, and 17. The lower endof the vertically depending arm or bar 15, is bent knee fashion at 21,

- and firmly driven .into a correspondingly sha-ped slot 22, provided for its reception in a block 23.

24, .i a cap-screw threaded into a correspondingly screwed hole drilled into the 3 block 23 throug'ht'he lower end of the arm 15, as clearly shownby the sectional detail Fig. 6. Formed transversely of the block 23, is a second slot 26, inwhich are fitted the free ends of two bars 27, 28, bent at right angles and arranged on their edges, as will be clearly understoodfrom an examination of Figs. 1,, .an,d 3, These bars 27, 28,

each have appropriately secured to their upper edgesscrcen members 29, 30, respectively which are out awayat 31, to allow for or: apping-when the said bars, 27, 28,- are moved apartor closed together as will bcl'cleja'rly seen by an inspection (if-Figs. l

and if. the latter figure showing the ex-.

" pa nd ed position in dot-and dash lines." The lfiefeeudflg, of 'the bar 27, is appropriately rounded oil'asshown by Figs-i2 and 7, to

permitfthe. sereen members '29, being, brought as close as possible together. T-l'1e-.

cap-screw 2% above retel-Med to, serves 1156" to lock the'sbars 2 7, 27 in adjusttal relation, and it will be'appa that said bars may be shaped its any other' desired-angleinplan to suit different types and widths of dies or cutters.

From the foregoing description it will be seen that by my invention, I have effected a very great improvement in safety guards of the type referred to, perfect adj ustability in all directions being provided, and at the same time when the several parts are properly adjusted rigid locking thereof is positively insured.

In practice I have found the improved safety guard extremely effective for the purposes specified, and I do not;limit myself to the specific details of construct-ion particularly described and shown, many alterations and various other combinations thereof being possible without in any way departing from the field and scope of the invention, and it is intended to include all such within this application, wherein only the preferred form has been exemplified.

Having described my invention, what I claim as new and desire to secure by Letters Patent, is

The combination wit-h the fulcrumed lever of a safety guard for machines of the types hereinbefore specified, of a bar one edge of which is adapted for interlocking cooperation with the aforesaid fulcrumed lever, means for coupling said parts in interlocking relation, a laterally adjustable block adapted for rigid fixture on the said bar and carrying a vertically adjust-able arm, means for maintaining said arm rigid when adjusted, a second block securely fixed to the lower end of said vertically adjustable arm,

and laterally adjustable screen members -.carried by said block, substantially as set forth for the purpose specified.

Signed at Hamilton, Ontario, this 2nd day of March, 1911. Y I

JAMES MELVIN J ONES;

In the presence ofv I ,5

Gmzrm Nrononson,

ALFRED Y; BRATTON.

' Gopi'es of this gaiteelmay 'he obtained for five cents each, by addressing the Commissioner of ratelitsg I V v Washington,' D. c.

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