US1630846A - Lubricant-dispensing device - Google Patents

Description

Patented May 31, 1927.

EDWIN J. HOLST, LAKE CITY, MINNESOTA.

' LIl'BRIGANT-DISPENSING DEVICE.

Application filed January 11, 1926. Serial No. 80,648.

This invention relates to lubricant dispensing devices, and has more particular reference to a device of this kind adapted to be employed for applying oil or other lubricants to various parts of machinery and the like.

The primary object of the invention is to provide an improved device adapted tobe carried in the hand when in use and to take the place of conventional forms of oil cans now in general use. I

A specific object of the invention 1s to provide a lubricant applying device of the above kind which is extremely simple and durable in construction as well as eiiicient in operation and arrangement of parts hereinafter more fully described, shown in the accompanying drawing, and claimed.

In the drawings, wherein like reference characters indicate corresponding parts throughout the several views.

Figure 1 is a central view of a limited applying device constructed in accordance with the present in- 'vention;

Figure 2 is a top plan view thereof;

Figure 3 is an end elevational view of the same looking towards the right of Figure 1; and

. Figure 4 is a transverse section taken upon line 4--4 of Figure 1.

The present lubricant applying device is constructed in the general form of a pistol and embodies a barrel including an inner section 5 having a depending hollow hand longitudinal sectional grip 6 rigid therewith, the barrel section 5 and hand. grip 6 being preferablyformed integral and of sheet metal as shown. The barrel further includes an outer section 7, the inner end of which is detachably secured on the outer or forward end of the inner section 5 by means of bayonet s'lot connections or the like as generally indicated at 8. The outer end of the forward or outer barrel'seetion 7 is'equipped with a suitable closure cap 9 or'the like which is detachably held in place preferably by means of bayonet slot connections 10 and which is provided with a central forwardly projectin outlet nozzle 11- through which the lubricant is adapted to be dispensed from the-forward barrel section 7 in a manner which will presently become apparent.

Slidable longitudinally in the outer barrel section7 is a lubricantejecting piston or plunger 12 which is attached to the forward end of a rod 13 which is adapted to project to a point adjacent the inner end of the inner barrel section 5 when the piston 12 is retracted to the inner end portion of the barrel. section 7 as shown clearly in Figure 1. The piston rod 13 is provided with ratchet teeth 14 on its under side and substantially from end to end thereof, and pivoted intermediate its ends within the lower portion of the inner barrel section 5 as indicated at 15 is a" trigger 16 which has a pawl 17 pivoted to 30 the upper end thereof in position to have its forward end engage the ratchet teeth 14 of the rod 13. The trigger 16 projects downwardly through a slot 18 in the lower portion of the barrel section 5 so that the same Y may be conveniently actuated by a finger of the users hand gripping the hand-grip member 6. Suitable means is provided for yieldingly swinging the pawl 17 into engagement with the'ratchet teeth 14:, and the means shown for this purpose embodies a helical tension spring 19 attached at its forward end, to the rear end of the pawl 17 and at its rear end to the hand-grip 6 within the upper end portion of the latter. It will thus be'seen that by repeatedly forcing rearward- I 1y upon the lower end of the trigger 16"and then allowing the spring 19- to. return the trigger to normal position, the pawl 17 may be caused to cooperate with the ratchet teeth 14 on the piston rod 13 so as to feed the piston 12 forwardly or. outwardly 1n the outer barrel section 7 with a step by step movement. In the use of the device the dos ure'9 is removed and the barrel section 7 is filled with lubricant in advance of the piston -12 so that upon each outwardor forward movement of the piston 12 a quantity of' rearwardly to an excessive distance as indicated by dotted lines in Figure 1 so as to in'g'pivoted against the ad'acent side of the" trigger 16as shown. If

. guard 21 may be provided for t-he'trigger 16.

' effect swinging of the pawl 17 entirely out of '25 engagement with the teeth 14 of the rod 13. In order to positively prevent tilting of the pawl 17 about its pivot ina clockwise direction to engage the teeth 14 when the trigger 17 is forced re'arwardly to the above mentioned excessive distance,- a pin 20 may be provided in the ath of the inner end of said pawl 17. The pm 20 may be disposed in the path of the pawl 17 without being in the path of the trigger 16 bymounting said pin so as to project a slight distance from one side of the barrel. section '5, the pawl 17 beas is usual in the construction of pistols.

The means for facilitating manual-retraction of the piston 12 preferablyembodies a guiding rod 22 which is slidablethroug'hthe f inner end ofthe inner barrelsection 5 and slidably telescoped within the piston. rod 13,

.the latter being provided withfa central longitudinal bore for reception of the rod 22 'as indicated clearly in Figure 1. The rod 22 is of such length as to terminate at its forward end within the forward end portion of the rod 13 when the piston 12: is retracted, and the forward end of said rod 22 is provided with a cross bar or rigid transverse'pin 23, the ends of which are adapted to ridein a longitudinal elongated slot 24 which is provided in the piston rod 13 so as to extend substantially from end to end of the latter and to intersect the bore in which the rod 22 is slidable. 7 It will thus be apparent that the,

rod 22 may be telescoped within the rod 13 after the piston 12 has been -retracted' so' as to freely permit feeding movement of the pis ton 12 by operation ofthe trigger 16 and.

. at the same time not projectrearwardly from the rear end of the inner barrel section 5 so 'tion will be readily understoo esired, a suitable positions as to be in the way. On the other hand, by pulling outwardly upon the rod 22 until the .cross bar 23 engages the inner end of the slot and also providedwith an enlarged threaded portion directly in front of the knob or handle 25 as at 26 for detachable engagement in the inner end of the barrel section 5 so that the rod 22 is releasably held in its forwardly slid out of in Figure 1. 1

From the foregoing description itis believed that the construction and operation as well as the advantages of the resent invenand app; ciatedby those skilled in the art. 4

Minor changes may be made without departing from the spirit and scope of the invention as claimed.

What I claim as new is 1. In a lubricating device of the character t I 7 described, an elongated tubular body formed 7 in two sections one thereof constituting an outer section and having means to recelve orthe way position as shown engage the outer end of-the other or inner section, a removable cap upon the other end of said outer section having a discharge nozzle extending therefrom, a hand grip formed integral withsaid inner section adjacent the inner end of the same, a piston body normally housed within said outer section, a rackbar carried by said piston projecting therefrom into said inner section, and trigger controlled ratchet means pivotally mounted in said inner section and hiough the wall thereof forwardly of the hand grip portion for engagement with and actuating of said rack bar, substantially as and for the purpose described.

2. In a ter descri ed, an elongated. tubular-barrel formed in two-parts constituting inner and outer-sections, said outer section being designed to reoelve in one end thereof the forward end. of said inner section, a removable cap upon the other end of said outer section projecti grease'gun structure of the charac having a discharge nozzle extending therefrom, a hand grip formed integral with and extending from the wall of said inner section adjacent the rear end element within carried by said ement and extending rearwardly therefrom into the inner section, a trigger element pivoted within the inner of the-same, a piston section and extending through the wall of thesame to depend forwardly of the hand gr p, a pawl member pivotally carried upon sa d trigger within the inner section and fiid outer section, a rack bar to engage said rack and a spring element connecting said pawl with the Wall of the section housing the same, to bring aboutthe engagement of the same with said rack, said rack having a longitudinally extending bore formed therein from the rear end to apoint adjacent the piston and further having laterally opening slots formed therethrough, and a guide bar carried by the rear portion of said rear section extending longitudinally therethrough and further-extending into the longitudinal boreofsaid 'ra-ck toislidably supportthe same, and pin members carried by said har at'its forward end for extension through said lateral openings; o

In testimony whereof I aflix my s'ignature.

- EDWIHN JiHoLsT.

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