US1780629A - Lubricating device - Google Patents

Description

Nov. 4, 1930'. Q c. D. o'r'rq 1,780,629

LUBRICATI'NG b'EvIc-E Filed April 22 192 2 Sheets-Sheet 1 Nov. 4, 1930. c. D. OTTO LUBRICATING DEVICE Filed April 22 1926 2 Sheets-Sheet 2 I VE 0R. N

' a hydraulic 'pres'surefcom ing positionwith the hydraulic supporting. a 50 machine and toi guided' verticallymovable n'ay'be controlled.

.dischargemaybe controlled. I 1 a Patented Nov. 4, 1930 P T NMF: I

oH'AnLEs nqo'r'ro; or NEW YORK, 1 I..Y. 5

,LUBRICATING DEVICE a iieatibn filed April "22, 1926i eerie-ind. 103,879. 1

E Thisin 'ention appertains to' 'a lubricating device. i i H One object of my invention is to progiluce asyst'em of forcedIubIicatiOninWhich the parts to be'suppliedwitli the lubricant under pressure arefed'froin the oil supply of nism of'a briqueting press;

vide means between the pressure source of lubrication supply and vthe discharge point f m y which the amou t of th p m ybe-regulated;

Another object offniy inventionisto pro;

e vide Ine'ansjbetween the pressure source of lubrication supply I "and; the discharge open; ing of same by'which the amount of pres sure under which the lubricant is discharged Another Objeot of yfihventioms spavide a"' briqueting;press in whichthe' pressure applying mechanism is mounted upon,

- a liquid supported base the pressure in which is maintained afleliible 'element lsuch as steam andusing the:pressuremaintained on "the fluid element toiorce a partfof the;

fluid elementfbetweenthe friction surfaces.

of the briqueting'. compacting pressure ap p y ng mechani m; -v

Another. object of my invention is to provide a system of lubrication in which the lubricant supply-is'maintained at a constant pressure throughout a major portion and i at a greater pressure @during the, additional, portion of the machine cycle.

Another object, s to procenter ofa,briquetingfpress such as is used in the manufacture of asphalt paving blocks,

showing the parts in non-pressure applying l position. in a showing the mechanism in pressure applypiston'partly depressed I pensation mecha- Another objectof myfinvention is to up anddown in unison. ,7:

, I in prop-er'frequency and sequence by mechide'means by p i which the amount: of lubricant supplied; under pressure at; each individualpoint ofz Figure :1 "a? sectional vlew} through the li gnre 2, is 'a fsimilarl viewl to Figure 1 p I V 1 cylinder; Thetop of the plungeris connected l thesecti'on. S awn in Figural showing parts in'pos itione when the cam. is 90 from that This'press issiinilar to the one described in Patent Number 1,128,809, dated- Febru- 55 ary" 16,1915, and granted to Garabed G. Heghiniang v i I Thehorizontal driving shaft 1' is mounted in standards 4 ,"45 ana4e, and thisshaft i l-carries a worm wheel 42 engaging a worm f il jwhich is driven in some suitable nianner from soine'suitable source pfpower. A top cross headi and a hottom cross head 5 are united bygroups,ofheavy vertical s'lide bars 6 on which cam rollers}? are mounted, one on each side of the machine, said camrollers each running on the vedgeof'a cam 10 se- 1 curedion vthe shaft 1, so that as the shaft 1 revolves, the cross headsfi and '5 are moved 1 anvil 12 provided with flanges l4, rests by. means of said "arms on the standiifds 5 and: 46 and can befforced 'upwardby the'f cam 13;,on the shaftllwhich cam can agt on aQ1fo1ler4E3 mule lower part'ofthe. anvil. f The anvil fits' into and is a daptedtdniove' upward into the die or moldiS directly beneath andin line lwiththe compressor head 18. formed on the lower end of the upper crosshead 4'. 5 ,On'the top ofthermold 48a box is mounted to slide'horizontally and :is providedwith an opening of the-same size as the. top oi the anvil 12 and compressor.

head 18 said box being 'slidable to and fro anisnii noti shown, but describedlinPatent I:

Number 1,128,309, V

The lower cross head oomprises a cylinder 3 intowhichis placed aplunger 22iwhich, of i i v course, is pr'ov'ided'with theflusual hydraulic 90 pack ngs which havebeen omitted for clearn'essl This plunger" is provided with lateral projections'which pass into the corresponding' internal grooves'in the cylinder '5,'which I grooves are of such height as 'to give the plunger a certain up and down play in the with toggles 17* pivotedto the "frame of the member 15 which carries at its upper end the 1'00 III roller 16 upon which the cam can act. The interior of the cylinder communicates by the channel 24 with the steam cylinder 29 by means of pipes 24 and 25.

U-shaped latches 11 are provided and pivoted at 53 to the vertical bars 6 and by springs surrounding the pivots of said latches, the upper free end of the latchesthrown inward and into that path of the flanges 14 of the anvil 12, said flanges being provided with a bevel at the bottom corner of the outer end for a purpose that will be set forth.

The cylinder 23 has the part 2% fiexedly connected to the high pressure line 25 which conneots with the bottom of the cylinder 26 which has slidably mounted therein the piston 27.

This piston carries at its upper end the pisv ton 28 which is free to travel in the cylinder 29. In tapped holes in the top of this cylinder are moi'intedithe safety or blow off valve 30, the gauge 31 and the steam inlet pipe 32.

- The high pressure oil pipe 25 is tapped be tween the oil cylinder 23 and the steam cylinder 26 at the point 33. The branch pipe 34 on which is mounted the pressure reduction valve 35 and the re'ducin valves or cock 36.

has tapped into it" The header or manifold 3T the branch lines 38 which are providedwith i at ' of cam 13 as shown in'Fig. .1.

the additionalcontrolling cocks 39. Where necessary the. flexible connections 40 are provided to allow for thetravel of the parts.

The header is joined to individual distribut ing pipes 10 as shown and which are connected to shafts or pins 17' of the toggle joints v and by l0 to direct lubricant on the surface v The shafts and bearings being drilledand grooved in a suitable manner to allow a proper distribution of thelubricant. The shafts or pins move in their respective bearings and the lubricant is fedto the bearings so as to lubricateand reduce the friction between the shaft or pins and its bearing.

The operation'is as follows: I

The empty box 19 is passed'under the hop per 47 and the plasti'cor semi-plastic material such as asphalt filled' into said box which is then removed from under the outletchute of the hopper 47 beneath the compressorhead 18 of the upper cross head 4. The anvil now rests upon the upper end of the standards and 46, the upper endof the anvil closing and fitting into the lower end of the mold 4:8. The

cam 13 through the togglellevers forces down piston 22, the lower cross head 5 and also the upper cross head 1, causing the compressor head 18 at the same to force the charge of asphaltfromthe box19 into themold48 and upon the upper end of the anvil 12. Then: both the cross pieces are raised underthe-aotion of the cams 10. Vith the parts in the position as shown in Figure 3 the block has just been molded and is within themold above the top of the anvil 12. By the action of the box actuating mechanism box 19 is now rapidly withdrawn and brought beneath the chute of the hopper 47 and filled with fresh material and the cam 13 now forces up the anvil which pushes the completed block up to the level of the top of the mold, as is shown in Figure 1.

As the anvil rises, the latches 11 are first pressed outward and then snap inward and engage the bevels in flanges 14 of the anvil, and thus hold the anvil in raised position, it being, of course, understood that during this time the bars 6 and their top and bottom cross heads arein extreme raised position. By the action of the mechanism not shown, the now filled box 19 is brought into the positions shown in Figure 3 and pushes the completed block to the'left on the top of the mold and the completed block is removed. The cam 13 now acts on the bottom roller-16 and forces the same down whereby the bars 6 and top and bottom cross headsare forced down, the

ca ms 10 being so shaped as to 'permit of this.

The compressor head 13011 the top cross head now forces the material in the box through the box 19 and into the mold and upon the upper endof the anvil whichis still raised. As the compressor head'18 descends, the-latches 11 and blocks 8 descend with it, and come in contact with the outer sides of the standards 45 and 46,are pressed sidewise thus releasing the anvil just before it comes to'a position of rest with its flanges 14 on the standards 45 f and 46, and the intervening charge of asphalt is now compressed in the mold between the top of the'anvil 1 2 and the bottom of the:c0mpressor head'18, and now the cams 1O begin to act and-lift up the bars 7 6 and the top and bottom cross heads and bring them into position shown in Figure 3 and soon.

The steam is admitted to the cylinder 29 at a predetermined pres-sure which is indicated on the gauge 31, and'if the blow off valve 30 is then set to operate at a pressure slightly above thatindicated on the gauge 31, it willbe readily understood that as'the toggles apply a downward pressure to the top 1 of the piston 22 that is greater than the up-' ward pressure of the oil on the piston, the

pressure in the steam cylinder 29' jumps upward in pressure and the poppet valve 30 portionately increased in pressu're and then returned to normali If, however, the poppet valve isset at a pressure somewhat above the gauge pressure, i. e. atthe maximum allowable pressure for the press, the downward pressure ofthe, oil pistonwil'l be transmitted tothe'steam but the steam valve will not go off unless the safepressure is'exerted. Thus mamas as the pressure in the oil cylinder mounts the pressure in the steam cylinder mounts proportionately due to the compression of the steam and as the oil piston releases the pressure,the steam pressure returns to normal. The poppet valve Will not go off unless due to some obstruction or a super-normal charge, etc. the press develops as dangerous pressure at which time the poppet valve will go off torelease that pressure.

There is a quantity of oil at high pressure in the line 25. This pressure can be propor-. tionately reduced at the valve 35, and the quantity controlled collectively by the cock 36on thermain line and individually by the cocks 39 on the branch'lines. The flow of oil under a predetermined pressure, i. e. that controlled by steam pressure, and in apredetermined quantity is being fed to the surface of camtl, the bearings in which shaftor roller 16,,shaft's 17 of toggle 17 during the V greatestpart. of the machine cycle but at the time when the machine has reached its maxi- I lubricated parts varies in combination, a movable member, a second; member adapted to engage said movable; member in frictional relationship along a surface of frictional contact, means for relathe feed lines 38. Also'the pressure maybe causes a consequent. upward travel of the V said rotatin steam cylinden This compresses the steam up to: a predetermined point beyond which the steam valve opens. This fixes the upper possible limit of developed pressure; The variation of oil pressure and consequently the pressure and volume of oil passing to the by these parts; 7 r

The volume of oil in the hydraulic cylinder is sufliciently gr'eatiso that the amount of oil used in lubrication does not affect the operatlon, sincethe reduction in volume merely causes the lowest position of the steam piston to be lowered. Iti-s but necessary to pump [additional oil intermittently into'ithe system as by pump 49.

Various modifications of the above may utilized such vas the introduction of additional pressure regulating-valves on each'o'f,

obtained from other points than that illus-- trated.

The above description limiting of my invention, which Iclaim to be: a r ,j

l 1. A lubricating apparatus comprising with the worl: done. 7

rollertively; rnoving said membersto impose ,a

variable load onsaid surface of frictional contact and means for feedingsaid-lubricant to said surface of frictional With said variable load. v r .2, A; lubricating{apparatus comprising combination,"a movable member, a second member adapted to engage said' movable member :in a frictional relationship along a surface of frictional" contact, means for rela-; tively moving saidfmembers'to impose a V3,- riable; load on saidsurface of frictionalcon tact, -means' for feedinglubricant -under pressure to said surface of frictional contact and mefansjfor varying the pressurein accord ithsaid variableload,

3, I l i tion, a plurality of movable members, means" for engaging certain 'of them inrfrictional contact along the surface of frictional con- U tact, means for imposing a load on said mem bers in a direction'at ail-angle otherthan 180 to-said frictional surface, means for varying said load to .vary'the friction on said surface of frictional; contact and f means for. forcing lubricant tosaid frictional surface in accord contact in accord 1 ruorlcatlngapparatus in combinawith said variable friction on said frictional surface. V h l. V j p r aAclubr catlng apparatus comprising in combination, a rotatable member "a second member adapted to engage said .frotatable member along a surface'of frictional contact," means for rotating said first member, means for imposingla;variable load on said rotating member, ''means for; feeding lubricant to 9 member in accord with said'loa'd; I

-,5; In -combinationfa mold, an anvil oper atingv in said mold, means for actuating-said anvil, comprising a'toggle, a cam operatively connected ,to'fsaid toggle, means vfor actuat ingsaid cam andmeans for feeding lubricant to said toggle and saidicam in accord with the load, :v: I

,6. In combination, a briquetting press,

standards, an upperl crosshe'ad, a lower-cross 3 head, means .for actuating 1 said crossh'eads',-

comprising a'rc'am a roller,a toggle pivotal ly connectedlto said standjards' and to said roller, means; for feeding'lubr'icant to said v rirollerand to the-Joints'offsaid togglefin'ac .on' 'said toggle and said COIdy-YVllZll the load 7..isInic'ombinationfa; cylinder, apiston, a

substantially incompressible fluid medium in Qsaidcylinder,.meansfor applying a pressure p to said piston, means for limiting the max-i is not to be takenas a mum pressure developed insaid cylinder,

nieans'for feeding the lubricating medium under a pressure responsive to the pressure developed 1n sa d cyllnder.

8. I i-combination, acylinder, apiston, a compressible means for applyingvpressure to r saidpiston, a second piston, a cylinder for said second piston, means for applying "a pressure tosaid secondpiston, a substantially incompressible lubricating fluid adapted to transmit the pressure developed in said second piston to'said first mentioned piston, means for by-passing a portion of said lubricant, means for transmitting said by-passed lubricant to parts to be lubricated tl1ereby.- V

9. In the combination claimed in claim 8, means for limiting the maximum developed pressure in said first mentioned cylinder.

10. In combination, acylinder, a piston, a compressible means for applying pressure to said piston, a second piston of lesser idiameterthan said first piston, a cylinder for. said second piston, said second piston being oper-- atively connected to said first mentioned piston, a third piston, a cylinder therefor, said third piston being operatively. connected to said secondpiston through the medium of a substantially incompressible lubricating material, a port in said second cylinder, a po-rtrin said third cylinder, connecting means between said ports, a by-pass located in said connecting means, means containing frictional parts for applying a load to said third piston, and connections from said by-pass to certain of said frictional parts.

11. In the combination claimed in claim 10, means for regulating the maximum pressure applied to said first mentioned piston.

12. In combination, a shaft, a bearing for said shaft, means for moving said shaft on said bearing, means for imposing a variable loadon said rotating shaft and means forfeedlng lubricant to said bearing in accord with said load. 7 a

13. In combination, a shaft, a bearing for said shaft, means for moving said shaft on said bearing, means for imposing a variable load on said rotating shaft, means for feeding lubricant under pressure to said bearing and means for varying the pressure of saidlubricant in accord With'said variable load,

14.111 combination, frictional surfaces operating under'load in a cycle of operations,

' first under a low load and thennndera high" load, means for feedinglubricant under pressure to said frictionalsurfaces, means for increasing the pressure on said lubricant in accord With said cycle of operation, the pressure on said lubricant being high'when the load is high, and low When the load is loW.

In testimony whereof I aflix my signature.

CHARLES '1). OTTO, I

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