US997485A - Machine for forming railroad-spikes. - Google Patents

Description

J. H. ALEXANDER & w. J. BRINKMAN.

MACHINE FR PRMING RAILROAD SPIKBS. APPLIUATION FILED AUG. 3 1910.

997,485. y Patented Ju1y11,1911.

5 S H EBTS-SHBBT 1.

J. H. ALEXANDER & W. BRINKMAN.

MACHINE POR FORMING RAILROAD SPIKES.

APPLICATION FILED AUG. 3, 1910.

PatentedJuly 11, 1911.

5 SHEETS-SHEET 2.

John Hy William 7a A- @if J. H. ALEXANDER & W. J.' BRINKMAN.

MACHINE FOR FORMING RAILROAD SPIKES.

APPLICATION FILED AUG. 3, 1910.

Patented July 11, 1911.

5 SHEETS-SHEET 3.

Snoep/tok Zeacv J. H. ALEXANDER & W. J. BRINKMAN.

MACHINE FOB. FORMING RAILROAD SPIKBS.

APPLICATION I'I-LED AUG. 3, 1910.

Patented July 11, 1911.

5 SHEETS-SHEET 4.

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J. H. ALEXANDER & W. J. BRINKMAN. MACHINE FOR FORMING RAILROAD SPIKES.

APPLICATION FILED AUG. a, 1910. 997,485. Patented July 11,1911.

- 5 SHEETS-SHEET 5.

H|||||| W... H-I.

Q91 bmeoac .s M Z Zi? (fo-HU @a z STATES PATENT OFFICE.

JOHN HYSLOP ALExAimEBAND WILrrAMJoHN BRINKMAN, voF VICTORIA, marrIsHY Y c zonrnimrA,v CANADA.

' 'Be it known "that we, Jorn( 'Toall 'whom it MACHINE Fon-nonnina RAILROAD-SPIRES.

' i A nEXArIIiER and WILLIAM J. BRINKMAN, citizens of the 4Dominion of Canada, residing-'at Victoria,

in the AProvince `of British Columbia, Can# which the following a specification.

)This invention relatesto a machine Vfor formingfbifurcated railway spikes such as illustrated herewithand'our object has been the spikes simultaneously from heated rods the endv of the blankis -ofset to form the head and the spike sheared from the blank in a manner that provi-des the required bifurcation; also the mechanism whereby the head tion t The several means by whieh these various obj ctsare-accomplished' are fully described in the followingspecication, reference being madeto the drawings by companied, v in which Figure 1 is a longitudinal section through,

the machine on'the line B B in Figs. 2 and` 3, Fi .-2fis an end elevation and part Sece section being taken onv the line A A- iiiFig."1flocking in the direction ofthe arrow- A,F ig, 3 is a plan of the machine,

Figs. 4' -and 5 are enlarged'details in end eles vati'on and section of ythe cams by which the feed clamps are operated toQcl'amp the blank rods, Figs. Gand fare enlarged details of thefeed clamp die's', Figs. `8 and 9 are en larged details ofthe cams, back andv face,

and' its connections, by' which ca-m the 4feed movement is imparted to the feed Yclamp bars, Figs. 10, 11,12 and 13 are enlarged details-oi" the-mechanism by Which-the Ablank of the head Ais offset Vand the head formed, Figs. and 11 being elevation and plan of theend of the offset,- rame, and 12 is a'sectional elevation of same on the line-D Din Fig. 13, and13 isa sectional plan on the line C C inA-Fig. 12,v Figs. 14, 15 and 16V are enlargedfdetai-lsin plan, sectional and end elevatlon'of thej grips inv which'the blank bar of the spike is held showing the punch which forms .the required bifurcation and severs Specification of Letters Patent.

whichit is 'aci is an enlarged detail of the cam whereby the upper grip die block islmoveddown to grip what the machine is designed to form. Fig. 19, is a detail perspective view .hereinafter l' is an 'enlarged sectional view of a part ofthe gmachine. Fig. 22, isa section onthe linev 2224-22 of Fig. 21.1A Figs. 23- and' 24 are deftail viewsshowing the manner of punching gand shearing the bar.

The spikes are formed' andcut from theblank bar s 2 which are reetan ular Vin cross esection andare-heated in a rnace or by `f-other suitable means adjacent to themachine. A spike typical' of that which this machine is designed to fol-mis illustrated inv Fig. 18 @of the drawings which spike it must.be"un '.derstoodmay be varied in detail. 'The maichine-here illustrated is designed to operate :simultaneously onsix blank bars but this is merely multiplication of the mechanism for E scribed. As the blank bars 2 are heated they @are seized b v feed dies held in upper and :loWerfeed clamp' bars 4 and 5 which-bars are moved toward one another' to secure the blanks AAn endwise movement is then im- Eparted' tothe clamp bars vto feed the bars into vtheother mechanism vof the machine.

TheAeed 'clamp dies 6, see Figs.4, 6 and 7,

:are in two pieces the division 'being horizontal and are removably secured mthe bars 14 and 5 1n any approved manner. Incl- Patented Ju1y'1'1, 1911.1 I Appicationrled August 3, 1910. Serial No. 575,232. i A

` the finished spike fromme banging.V 17'.'

the blank bar and'thereafter lifted there-P l from, Fig. 18 isa profile of a spike typical of ada, have invented a new and useful Machine `for Forming Y Railroad-Spikes, of specitica'lly referredto. Fig. 20, is -a secn tion 'on the '1ine'2Q-20 of Fig. 8. Fig..21,

s0.- `one bar which mechanism is hereinafter dedentally they are furnished with corner projections 7 which in-the act of clamping on the hot blank form the corner depressions -8 of the spike 9, see Fig. 18.

' The ends of the clampbars Land 5 eil- .circle the cams 10 and 11 by vwhichthe re-Y quired, vertical movement o f the dies 6' to and from one another, to clamp and release t-he rods 2, isfoperated, the encirclingporl dovetailed bearing pieces 12. The clamping - bars 4 and 5 have members Pand 5x respectivelv that slidably engage the machined faces 13y of the sides of the base frame, (see Figs.4 and v19). These cams 10 and 11 may be cast in one and are slidably mounted v on feathers'15 ona shaft' 16 on each sid'e (if the machine which.l shafts areJ driven 'by The. clamp. bars-4 and 5 and thecams by which they 'areoperated are en'dwise moved to and fro on the shafts 16 and their feathers to feed the clamped blank bars 2 into the machine by meansof. a crank 21 on each side'lof a shaft-20'which shaft operates the heading mechanism of the spikes to be i described later. To give the required lmovement of the;` feed, the pin2li of each crank 21 travels in fa groove 22 of a cam 24 shaped to give the Arequired vrestand movement 'and' this camis endwise movable in guides -23 securedv to .-'a pedestal 25 ofthe machine frame. To enable lthe amount of feed movement to be varied the movement ofthe cams vis imparted to levers 26 pivoted at 27 and connected t0 each camby a block 29 pivotally mounted wat 82 to a keeper 28 secured to the cam, connection to the clamp bars on each side being made by a member 30 connected see Fig. 20.

endwise adju-stable on'each lever-26 and provided with a pin 31 to which the rod 32 is These connecting rods 32, the lengths of which may be varied by a turn-buckle provided on each, are connected to the pin ends 33 ofja .cross bar 34 which is secured to and projects beyond the ends of .the upper clamp 'bar 4. By this mechanism the feed clamp bars, While open, are moved backwardly in the machine on the blank bars and at the farther limit of their backward movementof the' clamp bars are closed one on the other by the eccentric cams 10 and 11. 'Thereafter the clamp bars through the action of the crank pin in the cam 24, and through the lever 26 a-re moved forwardly inthe machine where after the rods 2.are gripped by the holding dies, in

. i which the blanks are held while'the various operations are performed on them, the feed clamp bars 4 and 5 return for. another hold. The blank bars 2 being delivered by the feed mechanism to the. machine are inserted between and gripped by dies 35. These dies are divided diagonally of the section of the blank bar one closing on the bottom and one side while the' other closes against the top and the other side. In length the gripping dies are approximately one quarter longer than the finishedlength of the spike and are secured in the lower and upper water jacketed blocks 363-37.

The lower die block 36 has a lateral motion only while the upper one has a vertical movement the combination of the two movements securely closing the dies on the blanks- 2. The bottom die block 36 is laterally movable in a machined slide of the bed plate 13 of the machine and is normally held in the open position'by .a-coiled' spring 38 on a stud screwed into the block and passing throughlthe adjacent sideof an upright of the main frame of the machine.` `The d ie the-end 'of the lower die block and a bear:

the llflachinehv simultan-@Sly with the lateral-movement imparted w.to the lower die blocka downwardA movement is imparted to the upper one 3'(.which is'at 'the sides carried up, as] at .40,104 j form a strap which incloses cams 41 and'42side by side4 on the shaft .43.V This shaft 43 is driven bygears 44and 45. from the shaft 2O which operates ing piece secured'to the adjacent frame of the spike heading .die. The separated cams .Th die block 37 vis guid V-41 and42 for the 'downward pressing and l movement by plates 46 secured to the up' right members 40 and slidable on machined edges of the pedestal 14 which carries the bearings of the shaft 43.1 The blank bar 2vv being'securely gripped by the dies 35', the projecting end of it which is designed to form the head ofthe spike, is offset to one side,V as shown in' Figs. .11 and 13 .in the.Y

drawings, by projections 47 secured'to a frame 48 which lguides the heading dies in their movement to form. the head. This o'- from the end of the frame 48 which frame is at each end carried' around the cam and has bottom in the uprights 14 through which it .i

passes. By this mechanism the end of the blank 2 which projects through the gripping dies is laterally offset to form the head and the heading dies are brought into the required alinement to effect the forming of the head which work is performed later in the cycle of movement.

After the offsetting of the head the length necessaryto form a spike is sheared from the bar in a manner that will leave the required bifurcated ends. This operation' may more properly be described a's punching out the interspace of the bifurcation the Width ofthe punch at one end being such that it will cut through the width of the bar and so sever the portion in which the aperture is punched from the remainder of* the bar.

The 'shearing punch 70 by which .this work visperformed is shown in .cross section in apertures in-'the upper and lower grippingdies themselves, as shown in Fig. 15. The

-- punchesare secured in and downwardly pro- 3.7, and the guide plates 46 which are secured pin 68' by eccentric straps69. The punches side strips-72, distance pieces t (0 are-secured initheir` cross head byV dovetailed ends which fit into a corresponding recess formed byja thrust plate '1l-and two "4" being inter! posed between the"punches, and :iv-through boltf passing throughall 'the-punches and' their distance pieces. The iinal stage ofthe Dperationis to .form the head on the endthat was offset j'while the punching was bei-ng into .proper Y alineinent.

so mit lateral -moveinent-.of the'row of die ing die frame 56"in a manner that-will per-v holders on the frame as the fsetting frame moves to oif'setthe-end of the spike. This heading. die frame' 56 is permittedby providillg each heading die `holder 'With'fV a anged head 57 which 'bear against a plate l .-58 .in the-heading die fra-me and are slidably retained'thereonV .by side strips 59 which engage the upper and lower 'edges of .their .-'langes. -"The 'heading die frame is 'box shaped in cross sec-tion and the bottom .rests uponama'chined slideway. on the bed of the machinefand vin the-hollow of the frame which is machined to receive A.it lits-the bear- Y ing box-60 of aneccentric 61 formed on the central part of: the shaft 20. This shaft is driven, by a' p inio n 62qon an intermediate shaft 63 driven-'fromthe irst motion shaft 18 by gears 64, 65. VThe heading dies 55 are` form the head ofthespike.

Although thev several operations-of feedthus moved forward by' the eccentric 61y to ing, gripping, offsetting, punching and.-

forming theheads has been lengthy to describe the-cycle oftheir movement is rapidly .performed Theclampingbars 4 and5 re' cede from-thefmachine and are closed todies 35-which immediately 'close upon them by an eiectiveverticaland lateral in ove The heading dies' 55 are secured to ahead-` movement-,of the heading die holdersfin the -mcnt thus securing-a hold on' all four sides 'oftheblanks. The offsetting frame 48 moves Alaterally to offset the -projecting ends on'which the heads are to be'performed and.

'simultaneously the shearing punches 70r are forced down and through the gripping'dies and Athe contained spike, forming theV required bifurcation andshearing the spikes .ject 'from the shearing head A66, which is vertically movable betweenv the upwardlycarried sides 40v of the'upper grip die Vblock punching it will be noted is noteffected on allthe spikes at once as the lengths ofthe .punches are stepped -so that the shock 4of rst entering vthe metalbfthespikes Ydoes .not come on the-machine all-at once. Fig. 21. After the punch 1is Withdrawn the heading/dies' are forcedffonward and ,form the heads on the previously offset ends. As f the heading dies recede the'ofsetting frame moves laterally to the position ready for the i next delivery bof' spike blanks, in which position 'thevheads ofthe 'finished spike: are opposite L to the interspa'cesV 80 between 'theA heading die guides, so that thenext inc om-V ing blankwillforce out the'tnished` spike-s 'and they fall through the base of the rna-` Having vnow particularly described our.

vinvention andthe various voperations performedfin the attainment of the desired re- 'as new and desire to be' protectedv in Let.-

`tersPatent, is: 1 aA machineA for forming bifurcated- 'railwayspikes the combination with means vfor-'punching the .bifurcations :and "heading the spike, -a feeding means by-which 'the blank bars are delivered-.t the punching and heading means, of gripswhich hold` all four' sides ofthe bar-while the operation ofpunching the bifurcationiand forming the spike head is performed.v

'2; Ina machinefor forming bi-furcated 'railway. spikes, the combination with a feed# ing means, of means for gripping the bai' vfrom'which the spikes are to be madewhile the work' is being vdone on them, said means including an upper V`and lower ldie block,

and formed to holdthetop'andthe other side of the bar, substantially as shown and described.

3. In -a machine for formingbifurcated railway spikes, vthe combination with. a

-means for feeding to the machine'the blank bar from which the spikes are to be made,

of a gripping means fory holding the spike blank while the several operations are .performedon it, a shearing punch which forms the bifurcations and severs the spike fromthe blank, said gripping means having an aperture through which'said shearing punch is movable.

4. I n a machine for forming bifurcated rail- Way spikes, the combination with a means forfeeding`to the machine thekblank bars from which the spikes are to be, made, 'o fa lower die block the 'half die of which will grip one side and' the bottom of the spike bar said lower die block being laterally movable, an upper die block the"half 'die of which is designed to grip the top. and the'- ot-her side ofthe blank bar., means for Oif- 'setting an end of the blank to the side on which the spike head is to b e formed, means for severing the spike length from the blank bar said means comprising a punch s lidable through apertures in the upper and lower die blocks when the same are closed on the spike, and m'eans coperative with said die p blocks for forming a head on the offset end.

In a machine for forming bifurcated railway spikes, feed clamp bars having- ,means for vclamping and releasing between them vthe blank bars from which the spikes are to be made, means for slidably moving.

these clamp bars forwardly and backwardly in the machine, means for holding the bars while the feeding means is receding, means for laterally offsetting the ends'of the bars projected through the holding means, means for punching the bifurcation in each bar and for severing Athe spike from the blank,

andmeans for forming the head on vthe 'olfsetend. 6. In a machine forformingbifurcated railway spikes, the combination with a feedj 'ing' means by which the blank'bars are fed during the operation, of means -for forming the'head of the spike, said means 'comprising j j a guide frame -withinwhich the head forminto the machine and aholding meansb which that portion to be operated on is held ing dies are slidably movable Asaid guide frame being endwise'movable in front of the row of spike rods, projections `on this guide frame that willi engage the projecting ends ofthe spike rod and offset them toward* ,one side in which movement the heading dies are brought into alinement to form the head on the offset ends of the-lspikero'ds, means for moving forward the heading dies to form theheads of the spikes and forreturning them thereafter, there being an inter- .names tothis specification i-n-the 'two subscribing witnesses.

space between each heading die guide in the guide bar into which the finished spike may be projected, means for returning the head dies to the position where the spikes will be opposite tothe interspaces.

7. In a machine for forming bifurcated railway spikes, said machine comprising means-forl feeding a series of blank -bars from'whch the spikes areto be made into Iand means for forming the head on the offset i ends, means for laterally moving the head forming diefrom alinement with the spike whereby the next fed .blank will project the finished spike from the machine.

8 In a machine for-forming bifurcate railway. spikes, thev combination with a mechanism for holding thel blank, punching the bifurcation and formingthe head of the spike, feed clamps for feeding the blanks to the machine the dies of which clamps in` lclude members to impress the metal with corner `flutes or other' external deformation required in the body of the spike.v

'9.Y In a machine for forming bifurcated r railway spikes, the combination with a feeding. means and means for punching and heading the spike blank, of a holding means for the blank while the punching and head- `ing operationsare performed vsaid holding means comprising ujpperand lower dies the movement ofwhich secure a hold onl all four vsid'esyof the metal blank by a pressure applied normal to the'sides 0f the blank, means for moving said dieslaterallywith relation 4 to one another and means for relatively angles to said' lastV named moving means.

In testimony whereof we have signed our presence of JOHN `HYSLOP ALEXANDER. WILLIAM JOHN BRINKMAN.

.moving sai-d dies in a direction atv right

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