US1540191A - Drill-steel-sharpening apparatus - Google Patents

Description

June 2, A. H SKAER ET .AL

DRILL STEEL SHARP ENING APPARATUS Filed April 24, 1923 v5 Sheets-Sheet 1 INVNTORS.

June 2, 1925. 7 A. H. SKAER ET AL DRILL STEEL SHARPENING APPARATUS Filed April 24, 1923 5 Sheets-Sheet 2 IN V EN TORS BY u I ATTORNEY June 1925- 1,540,191

' A. H. SKAER ET AL DRILL swam. srummmms APPARATUS Filed April 24, 1923 5 Sheets-Sheet V TO 4.715%? EN R 0.42;

ATTORNEY A. H. SKAER ET AL DRILL STEEL 'SHARPENING APPARATUS Filed April 24; 192:5 s Sheets-Sheet 5 a. HSMT" QEC'ZdTtZ Patented June 2, 1925.

iIiQByATIQ @Q aim s [1 lm i atiqn i e we. 2% 52F 4 11%. $2

' To @Z'Z whom it may concern:

"Be it known thatf we, ;H. 581mm MICTOQ'KAIi GLAnLeiti'Zensef the United Stetes, residing. at Denverin the c on nty 0t Denver and State of Colorado, have in'jven'ted certain new and usefu l 'linproven ents in llrill-Eteel-Sharpeiiiiig Apparatus, of which fthe following is efspe'eifizition.

The Obj c b fih Pr en ve t i to p ov d -ev o pa t; si e hi y fi c v ma h n for t eb v P pose- "I h iacwi panying aw Figure 1 is asidefelevetipii of the preferred embodiment ofthe invention;

'Tigure 2 is a; leer elevation pithe same, with one of the closure plzites renioved',

"FignreS awfront elevation With'the bsure P ate r m v d;

Eigni e '4; is a ertical longitndinal sec t p- 1 QW, v

lfignre; a detail vertical septipnal View thrqngh the elanriping; idiei inotor "a'r'ld the ciiil ie n alr Figures 6 and '7 are detail sections h 'di the v me hen smil wi .vl l in diff t i e fi n Figure 18 is ik de taii sectional View of a portion'of the valve-chest the receiving firinneTfor-the eiihziush i fln the structure disclosed, a hollow base member is ,lempl oye'd, V jerefer bly I colnpifi s ing agbottom 9, iipright side Walls-I0; and z gr elative'ly hemi'y top {11 hichepn'stitiites a plat i orn A'yertieal prans r eweb or reenforcing partition 12 BXiQQI IdSZEl QfIl the botto nr 9tothe top 1 1, and-from one side' w l t he e h aeid rper i f lim i e opening 13- 1 n' its uppeijporton. As 5; conseq iencethe ease hesa shtmberofrelative- 1y great sizefiind" forms easing provided with oppositeb en si des. T1isel'-'s ic1esere zideptedi to be e osed hy plates 14 and 5 15, detachebly secured in place by screws -16 1 a e "me t l-ilg iii by he S d Wells "One. end offlthe plattorm 11 is provided w th; an el yet d new 1-8; e zs for a fixed eiambinglglie 19 that in ay be of I any desired ,chgi'ra'eterniwpirnted toreiprowith the, cross head Q i off the 1ung er;;rpds v 20. The 1 other". of said lever exten ds hese through thbpening-lsin the pmiticsn -12 and 1 has 'pivo'tgi fiheretb Another? 'pitmen 29. "#Thi pitman extends intoe'tqbuh fhfl loyv piston 3!),"2'L'I1d is pivoted, shown at 31, m5 its innerforiower eiidi rhg" piston 30' is contained in avert-i993 cylihdeifihiri ber32 hoi1sed within thchafr' ber 6f the base m mber end dem hably mofint'ed there in. To end'-'tlielcylindeif ginc ludes 'a lower heaid 33," and the gj iinder or bar'reihzis 2m outetanding fl ngegg i lbcalf edwithgis a alve Chest -39, the ll'iijper 'pq tlon pipe 42 eonfiectechwith' any suitable I dollying hammer, the supply port 50'from said valve'chest 89,.being located below the port 44, throughwhich'motive fluid is sup plied to the die actuating motor. The lower end of the valve chest 39 is open, as shown at 51 and constitutes an exhaust port.

Mounted within the chamber of the base member in line with said exhaust port 51, but slightly spaced therefrom is the open mouth of a receiving funnel 52, the neck 53 of which is coupled to a hose 54 arranged within the base member chamber, preferably extending through thelower end of the partition 12. This hose leads to a transvers manifold 55, two branches 56 of which constitute, in effect, ports that open between the clamping dies 19 and 22, preferably on opposite sides of their work-engaging faces.

Located in the bore of the valve chest 39 is a reciprocatory plunger valve, comprising a lower controlling head 57 connected by a neck 58 with an upper closure head 59, the heads 57 and 59 constituting, in effect, the end walls or closures of the pressurechamber 40 of the valve chest. Pivotally connected to the upper end of this valve is a link 60 connected to the crank arm 61 of a rock shaft 62 journaled in one of the side walls 10 of the base member. On the outer end of said rock shaft is fixed an actuating crank 63, the movement of which is limited by a suitable quadrant 64. f The weight of the valve and the movable parts coacting therewith is substantially counterbalanced, preferably by a coiled spring 65 secured to the link 60 and to hook 663' or other device on the partition 12. v c

The operation of the structure is as follows: Assuming air or other expans'ible fluid, under pressure, is supplied to the pipe 42, this fluid will be in the chamber 40, and consequently'through the port 48 will have free access to the chamber 88, thus acting on the upper surface 37 of the piston 30,, and forc-.

ing it to its lowermost position. With the valve as shown in Figure 5, the ports44 and 50 are cut off from the chamber 40. If now the handle crank 63 is moved to depress the valve, the controlling head 57 will move downwardly until th port 44 is opened to the supply port 41 through the pressure chamber 40. Consequently motivefluid will flow into the cylinder member .below the piston, and overcoming the pressure against the surface 37, will elevate said piston. As

and therefore motive fluid will be turned into the dollying hammer so that the work clamped will be operated on. A retrogradeorupward movement ofthe valvewill first shut off the supply to the dollying hammer, thereby causing it to cease work and after wards the supply to the die actuating motor through the passageway 45 will be cut off from the supply. hen this occurs, theerhaust port 51 will be opened to the passageway 45 and the pressure on the upper face 37 of the piston will cause the said piston to move downwardly, thereby elevating the upper or movable holding die 22. As said die moves upwardly, the exhaust taking place through the port 51 will be in great measure received by the tunnel 52, and passing through the hose 54 and manifold will escape between the dies, thereby cleaning the same from scale and other detritus. Inasmuch, however, as the conduit 54 will not immediately receive and transmit the full amount of the expanding exhaust, a port'ion will escape into the main chamber of the base member, which having a relatively great capacity will cause a slight increase above atmospheric pressure, and yet-not enough to create any material back pressure that will affect the proper opening action of haust -motive fluid from the chamber into the funnel 52 so that it will. escape, also be tween the holding dies and supplement the cleaning action.

-Obviously the structure is simple, and it has proven highly effective for the purposes disclosed. It is very compact,vthe operating mechanism for the movable die being located wholly beneath the table-carrying the dies and dollying hammer. Moreover the movable parts are readily accessible, the plunger rods and lever being availableby the removal of the closure plate 15, and the die moving motor being likewise easily accessible by removing the face plate 14. This motor being an entity separate from the base member, can be constructed and assembled with ease and expedition.

' From theforegoing, it is thought that the construction, operation and many advan-. tages of the herein described invention will be apparent to those skilled in the art, without further destariptiomanditiwill be-understood that'v arious cha-ngesin the size, shape; proportion and minor details of construction, may be resorted to without departing i'rom the-spirit or sacrificing any of the advantages of Q the invention.

Having thus 'fully "described our invention, what we olainias new, =-and desire to secure by Letters 1 Patent, is

-1. In a drill sharpening apparatus, the combination with a hollow basehaving a bottom and -atop that constitutes a platform and providinga chamber therebeneath ha v iiig a m-open side, of a fixed die on the platformf'a movable -die cooperating with the fixed die, a carrier for the movable, die extending downwardly into the chamber, a cylinder member mounted upon-the-bottoin and' looated ii-n the-chamber, said cylinder member being accessible and --removable through the open side, a--'piston- -in the-chamher, *and means in the chamber connecting "the piston and carrier to operate" the latter bythe-tormer. I

I 2., In a 'drillsharpening i apparatus, A the combination with a hollow base l having a bottom a top that constitutes a platrornr and providing a chamber *therebenewth *having anopen 'side, of a fix'ed die on the plat-form, -a"-movable 'die 'fcoo-perating with the, fixed-die; a carrier for the movable die extending downwardly in'to the chamber, a cylinder member mounted-on {the ehamber,

a pistoir in the: cylinder member, a! lever in the" chamber fulcrumed between its ends on the base, "aconnection between the: *piston and one arm of the ljev'erpand aiconnection between "the otherarm-* ofthedever and the barrier.

3; In adrill 1 sharpeningapparatus, the combination with a hol low base providing a chamber and having a top-yw'allconstituting a platformyof" a fixedflie on the 'plat- 7 form, upright reciprocating carrier rods in the chamber; 'proj'eting labove the platform on oppositesides'of the fixed die, a die mounted on the projecting portions of'the rods and cooperating withtheiixd die, a lever fulcrumed between its ends in the chamber, a cross head connecting the rods with the chamber and connected to one end of the lever, and an upright motor in the chamber having a piston connected to the other end of the lever.

4. In a drill sharpening apparatus, the

combination with a hollow base member comprising a top, a bottom,opposite open sides and an intermediate upright partition between the bottom and top, a. fixed die on the top, a movable die ooact-ing with the fixed die, a movable carrier for the die extending into the base on one side of the partition, a motor mounted in the base on the other side of the partition, a lever in the base fulcrumed between its ends therebottom "within the casing and, accessible thr-oughrone :o f; the :open sides, and actuating means for the movabledieavithin the easing "ande-ioperatedby-the motor, ;;s,aid actuating I means being accessible through the other iopen side.

' 6. lIn-a *drill a sharpening apparatus, the

combination with =a hollow :base member constituting a leasing and having: opposite open -si'des 1 and an intermediatereendioroing partition, the top of said base. member eonstitutin'g'a platform, ofua fixed the 'LOIl :the platform, a upright reciprocatory plunger rods extending through the platiorm on opposite sides of: the fixed dieand. having portions within the casing-,on'S one-, side of; \the partition; a movable vdie carried: by the :PIO- j'ecting portionsu of the i and; coacting with the fixed d-ie, a =cnossiheadr connecting the rods 5 with the casing Mandi. accessible through one 0f: the :open' sides, anlever fulcrumed bet-ween IitS -endsdn the casings transversely of the parti tiongai pitman 1 connecting oneend of the lever and the :cross head, an 1 mpright cylinder in the-"casing 5 on .the opposite side o f the partitionmto the cross hejad and plungen rods, a piston. in the: cylinder, 1 at "pitman connectingthe i piston: and the opposite endoii the lever to the first pit- -m an, arid detachable i olosures forwthe open 'sides-o-f thecasing. I a V 7; In a drill sharpening apparatus, ;;:the combination withcoa'cting dies, vof a :motor tor:relatively: nrovingfltheisame; means for admitting motivefluidi toithez-motor permitting its exhaust, and:= a eonduit having a vreceiving mouth in lines with: the 1 exhaust and an ioutlet delivering to the tens, @said umouth permitting the escape Mo-i excessexhaust.

8. In a drill sharpening apparatus, the

combination with coacting dies, of a motor for relatively moving the same, means for admitting motive fluid'to the motor and permitting its exhaust, and a conduit having a iunnelform receiving mouth in line with but spaced from the exhaust permitting means, a

said conduit delivering to the dies.

9. In a drill sharpening apparatus, the I combination with a hollow base member having a closed chamber, of relatively movv ceiving a portion of the exhaust directly from the exhaust permitting means and directing as a cleaning agent to the dies, allowing the initial escape of the remainder of the exhaust into the chamber and utilizing the said exhaust that escapes into the chamber for die cleaning purposes.

10. In a drillsharpening apparatus, the combination with a hollow base member having a closed chamber, of relativelymov able dies mounted on the base member, a motor for relatively moving the dies, means for supplying motive fluid to the motor and permitting its exhaust, and means for receiving a portion of the exhaust directly from the exhaust permitting means and directing as a cleaning agent to the dies, allowing the initial escape of the remainder of the exhaust into the chamber and admitting said escaped exhaust into the directing means for die cleaning purposes.

11. In a drill sharpening. apparatus, the combination with a hollow base member having a closed'chamber, of relatively movable dies mounted on the base member, a motor for relatively moving the dies, valve controlled; means in the chamber for supplying motive fiuid to the motor and permitting. its exhaust, said means having an exhaust port in the chamber, and a conduit having an exhaust receiving tunnel in line with the exhaust port, said conduit having outlet ports deliveringto the dies,

12. In a drill sharpening apparatus, the combination with a hollow base member having a closed chamber, of relatively movablediesmounted on the base member, a

.motor in the chamber forrelativ'ely moving the dies, valve controlled means in the cham ber for supplying motive fluidto 'themotor and permitting its exhaust, saidmeans having an exhaust port in the ichamber, and a conduit having an exhaust receiving tunnel in line with but spaced from the exhaust port, said conduit having outlet ports delivering to the dies. c r

13. In a drill sharpening apparatus, the combination with relatively movable Workclamping dies, of a motor for moving the same, a fluid actuated dollying hammer for thework clamped by the dies, a valve chest common to the, motor and hammer, and having a motive fluid supply receiving port, an outlet supply port in communication with the dollying hammer and a second outlet supply port in communication with the motor and located between the first two ports, and a reciprocatory plunger valve in the chest and movable in one direction to a position that cuts off communication between the supply receiving port and the other two ports and intheopposite direction to suecessively uncover to the receiving port, the outlet supply port to the motor and the outlet supply port to the dollying hammer and on a reverse movement to close them in reverse order.

l-l; In a drill sharpening apparatus, the combination with relatively movable workrlamping dies, ofa motor for moving the same, includinga cylinder member and a piston operating therein and having opposed pressure surfaces, a fluid actuated dollying hammer for the work clampedby the dies, a valve chest common to the motor andham- .rger and mounted on the cylinder member, said chest having a live fluid pressure chamber with a supply port leading thereto and a pressure port leading therefrom to the interior of the cylinder member on one side or the piston therein, said valve chest having anotherpressure port leading therefrom to the opposite sideof said piston, a conduit leading from the valve chest on the outer side of the second pressure port, and a reciprocatoryi plunger valve in the chest that is movable tosuccessively open the second pressure port and conduit to the pressure chamber in the orderrnamed and to close them in the reverse order. a v In testimony whereof, We afiix oursignatures in the p'reseuce of two witnesses.

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