US1845429A - Lubricating pump - Google Patents

Description

Feb. 16, 1932. K. LoRiNz ET AL 1,845,429

LUBRICATING PUMP Filed Qc.. 18,' 1929 naman vret., ia .ieaa

KARL LOBENZ AND GOTTLOB SCEIESSWQHL, F STUTTGART, GERMANY, ASSIGNORS TO I BBEBT BOSCH AKTIENGESELLSGHAFT, 0F STUTTGABT, GERMANY auanrcarme roma Application filed october 18, 1929, Serial No. @0,716, and in Germany October 20, 1928.

The present invention relates to lubricating pumps and more particularly to pumps having detachably mounted thereon a lubricant container in which a stirring apparatus @driven from the 'pump is rotated, which stir- 'ring. apparatus carries the grease stored in pump, the shaft of the stirring apparatus' .is connected to the ump shaft by means of relatively axially dsplaceable coupling ele- ,go .ments such as socket or clutch couplings.

In the accompanying drawing one form of construction according to the invention .is shown by way of example in partial longi- .tudinal sectio A cylindrical pump body ai together with a rotatable pump shaft vblis mounted on a base member c and is secured thereto by a screw connection. The pump shaft operates in addition to its normal function as la con- 39 trolling or distributing shaft and receives ,its drive through a shaft c' mounted the base part c, throufl'h a screw or worm wheel drive? he underside of the base member,-

as shown. T forms asuppo'tin and securing surface. On the upper end of t e pump shaft is a cam disc d which causes a pump piston or plunger e disposed about the pump shaft to move up and down in known manner. A half coupling f, having a slot g formed therein is provided at the end of the shaft b for engagement by a half coupling k secured to a stirrer m.. The shaft ic is mounted in bearings in a neck-piece n screwed on to the pump body and on which is mounted a sheet metal con-l tainer o', A strainer p is fitted on the neckpiece belowthe stirring apparatus.

In order to inspect the pump or to adjust the quantity delivered by the. iston e, by means of an adjusting screw g th This can be efiected without necessitating the dismounting of the stirring apparatus by means of the clutch coupling existing between the pump shaft b and shaft k ofthe stirring apparatus.

rThe length of contact of the clutch couplingm is-greater than the distance y. with which the thread on the neck piece en ages with opposite thread on the pump bo y so that the screwing of the container on to the pump body can only be efl'ected after the clutch coupling is in engagement.

We claim:

l. A lubricating pump comprising a base, a pump chamber mounted on said base, a pump shaft arranged within said chamber, a lubricant container detachably mounted on the pump chamber, a stirrer supported Within said container, and releasable clutch means connecting said stirrer to ,said pump shaft and arranged to disconnect said stirrer from said shaft when said container is detached from said chamber.

2. A lubricating pump comprising a pump chamber, a pump shaft and plunger arranged within said chamber, a lubricant container detachably mounted on the pump chamber, a stirrer arranged within said container, and relatively axally displaceable coupling elements4 connected to the pump shaft and the stirrer for. obtaining rotation of the stirrer on'r'otation of the pump shaft, said coupling element being arranged to disconnect 'said stirrer from said shaft when said container isl detached from 'said chamber.

3. A lubricating pump comprising a pum chamber, a ump shaft and plunger arran e concentrica y within said chamber, a lu ricant container mounted concentrically on the pump chamber and secured thereto by means` of a screw thread connection, a stirrer ar-v' ranged concentrically within said container. and relatively axially displaceable coupling elements connected to the ump shaft and the stirrer for obtaining rotaton of the stirrer 'on )rotation ofthe pump shaft, the axial length of the interengagingportions of said coupling elements being greater than tl'eaxial length e container, of the screw thread connection between the together with the neck piece must be removed. vpump chamber and container.

4. A lubricating pump comprising a base, a pump chamber mounted on said base, a pump shaft arranged within said chamber, a pump plunger and means for adjusting the throw of said plunger enclosed within said chamber, a lubricant container detachably mounted on the pump chamber in alignment with said pum'o shaft and arranged to cover said adjusting means, a stirrer supported Within said container, and a releasable clutch means connecting said stirrer to said pump shaft and arranged to disconnect said stirrer when the container is removed to obtain access to said adjusting means.

In testimony whereof We have hereunto aflixed our signatures.

KARL LORENZ. GOTTLOB SCHIESSWOHL.

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