Lubricating attachment for percussion tools

Abstract

Claims

Feb. 12, 1924; 1,483569 D. BRANDRIFF LUBRICATING ATTACHMENT FOR PERCUSSIION TOOLS Filed July 21 1920 IO ll Patented Feb. 12, 1924. UNITED STATES PATENT OFFICE. .l DANIEL BRNDRIFF, OF SHORT BEACH, CONNECTICUT, ASSIGNOR TO MALLEABLE IRON i FITTING-S COMPANY, OF BRANFORD, CONNECTICUT. LUBRICATING ATTACHMENT FOR PERCUSSION TOOLS. Application filed July 21, 1920. To @ZZ whom t may concern: l Be it known that I, DANIEL BRANDRIFF, a citizen of the United States, residing at Short Beach, town of Branford, county of New Haven, State of Connecticut, have invented certain new and useful Improvements in Lubricating Attachments for Percussion Tools, of which the following is a full, clear, and exact description. My invention relates to lubricating attachments and particularly to a type of devices of this class, which may be installed in an air line leading to the parts needing lubrication. The lubricant, in devices of thischaracter, is inserted into a chamber through which the air passes and is carriedr from this chamber by the air current. The invention is, also, applicable to any lubrieating cup or chamber which is provided with an opening through which the lub-ricant is introduced into the cup or chamber. In devices heretofore used it has been the custom to provide a threaded cap or nut which must be removed with the lingers or a wrench, in order to expose the oil opening and after the chamber has been'iilled this` cap or nut must be replaced. One object of my invention is to provide a lubricating attachment into which the lubricant may be introduced expeditiously and Without the removal and replacing of any parts. Another object of my invention is to provide a device of the character described, the opening in which will automatically clo-se after the introduction of the oil. Still another object of my invention is to provide a lubricating attachment for introduction into an air line which will prevent the loss or the blowing out of the lubricant when the machinery is in operation. To these and other ends, the invention resides in the novel features and combinations of parts to be hereinafter described and claim-ed. In the drawings: Fig. 1 is a plan view of a device embodying my invention applied to a vibrator. Fig. 2 is a side view in elevation looking toward the left in Fig. 1. Fig. 3 is a. sectional view on line 3--3 of Fig. 1. Fig. 4 is a sectional view on line wl- Of Fig. 3. l I have chosen to illustrate a preferred Serial Nol 397,962. form of my invention as applied to an oiler elbow for a vibrator of the type shown in Patent No. 1,336,931 granted Apr. 13, y1920, to George B. Picliop, but it will be apparent that the invention is capable of broad application, and is not limited to the exact'fform shown. 'Io thisend I have shown diagrammatic-ally in Fig. 1, a pattern board 10, to which is attached at 11, one end 12 ofa vibrator cylinder 13. Within this cylinder is shown in dotted lines a 'piston 14, the cylinder being provided with athreaded'inlet opening 15 for the introduction of air.Y Theparts just described are of usual form-and are shown in the patent above referred to( An -elbow denoted as a whole by the numeral 16, is shown as provided with an arm 17 having a threaded end 18 for cooperation with the threadedy opening 15, and a second arm 19, at right'angles to the first, having. provision at 20 for connection with a hose or other flexible tubing 21, which is yconnected to a source of compressed air. (not shown). As shown in` Fig. 4, the arms 17 and 19 are provided with4 air passages 22 and 23 respectively. f l At the junction of the tw'o arms 17 and 19, an enlarged elbow-24 is provided, con-1 taining a cylindrical chamber25, the lower end ofiwhichis threaded internally at 26 for thelreception of a closurecap 27, provided with a neck portion 28, threaded eX- ternally at.29, and having a recess 30 yin its upper surface. vA tapered opening 31, com? municates with the chamber 25 through the top thereof, as do the air passages 22 and 23 at the chamber sides. vThe wall of vrthe' chamber 25 is provided'with twooil groovesv 32 andf- 33 extending from the top of the chamber down to and communicating with the air passages 22 and 23 fory apurpos'e :tof be hereinafter explained. f Af valve 34 'is 'movably mounted' in the chamber 25 and consists of a tapered valve head 35, which serves to effectually close the tapered opening 31, anda stem 36.` The valve isyieldably heldin closed or upward position by a spring, shown in the embodiment illustrated, as a coil spring 37, which surrounds the valve stem 36. In operation, the valve head is pushed f down against the tension of the spring,'3'7-. by the spout ofk an oil can 1n the hands of the operator, and the oil'may lthen be dascharged from the can into the chamber 25. y K al Immediately that the spout of the oil can is withdrawn, the spring 37 moves the valve upward to closed position. If the air is then turned on in the passage 23, the oil will be carried through the passage 22 to lubriifate the working parts olil the vibrator and will be prevented from flowing out of the oil inlet 31. If the return of the valve head to closed position `tends `to catch andl hold any of the oil in the upper part of the cylindrical chamber 25, the oil so held will rundown into the working part of the chamber through the oil grooves 32 and 33. ,It .will be understood .that the invention is.y not to be limited to the exact details of construction shown in t-he drawings but is capable of wide application and of many modifications without departing from the spirit thereof, or from the scope ofthe ap` pended claims. i That I claim is 1. In a lubricating attachment, a lubri cant chamber vhaving an inlet opening at the upper side of the same, a valve to close said opening, a spring below said valve, to urge vthe sameto closed position, and a removable plug in a wall of said chamber opvpositethe inlet opening to Vsupport said spring, said plug having a recess toreceive the lower end of said spring. l 2.:In a lubricating attachment, a lubricant chamber having an inlet opening at the topthereof, a valve toclose said opening, a spring below said valve to urge the sameto closed position, said spring against the bottom of said chamber. ' 3. In a lubricating attachment, a fluid passage provided with an inlet opening communicating with vthe-atmosphere for the introduction of av lubricant into said `fluid passage, and a valve yieldably urged to close resting said opening. 4. In a lubricating attachment, a fluid passage provided with an inlet opening for the introduction of a lubricant vinto said iuid passage, and a valve bodily movable in? said passage and yieldably urged to close said opening. 5L In a vlubricatingattachment, a fluid assave arovided with an inlet o ening tor c l c the introduction ot a lubricant into said fluid passage, and a valve unatta'ched to the walls of said passage, and yieldably urged to close said opening. 6. In a lubricating attachment, a fluid supply pipe having an inlet opening for' the introduction of a lubricant into said pipe, a valve within said pipe and supportedk from the bottom thereof and yieldably urged to close said opening. 7. In a lubricating attachment, a fluid passage having a tapered opening for the introduction ot a lubricant therein, and a correspondingly tapered valve within said v assane normallv ureed to close said o ieninn. C .l t; ,7. 8. In a lubricating attachment, a fluid passage having an inlet opening at the upper side thereof for the introduction ot a lubricant, a valve to close said opening, and a removable plug to support said valve. 9. In a lubricating attachment, a fluid passage having an inletopening -lor the introduction of a lubricant, and a valve to close said opening, a spring below said valve to urge the same to closed position, and a removable plug to support said spring said plug' being mounted in a wall of said passage opposite the valve. 10. In a lubricating attachment, a lluid passage having .an inlet opening for the introduction of a lubricant, and a valve to close said opening, a spring below said valve to urge the same to closed position, and a removable plug to support said spring, said plug having a recess to receive said spring. 11. In a lubricating attachment, a fluid passage having an inlet opening for the introduction of a lubricant, and a valve to close said opening, a spring to urge said valve to closed position, resting against a wall of said passage opposite the valve. 12. In a lubricating attachment, a iiuid passage elbow having an inlet opening at the upper portion thereof for the introduction of a lubricant, and a valve to close said opening supported at the lower side oit the elbow. 13. In a lubricating attachment, a fluid passage having an inlet opening for the introduction of a lubricant therein, a valve comprising a head and a stem for closing said opening, and a spring surrounding said stem to urge said valve to closed position, said spring resting upon a wall of said passage opposite the opening. 111. In a lubricating attachment, a fluid passage, an enlarged elbow in said passage having an opening for the introduction ot a lubricant, and al valve yieldably urged to close said opening. f 15. In a lubricating attachment, a lubricant'- chamber having an inlet opening, -a valve for closing said opening, the walls of said chamber being provided with oil grooves, adjacent said valve. 16. A fluid supply pipe, having a pair of oppositely disposed openings in the walls thereof, a valve associated with one of said Bil openings and having aspring to urge the said chamber having connections whereb`T the fluid passes through the same, said chamber having a valved inlet opening for a lubricant, a spring to urge said valve to closed position, said spring being supported upon a wall of chamber opposite said opening. 19. An oiler elbow for a Huid supply pipe having a chamber provided with inlet and outlet fluid passages at its intermediate portion, and with a valved inlet opening at one end thereof, the wall of said chamber be'- ing grooved adjacent the open end, said grooves communicating with said fluid passages, to supply a lubricant therein. 20. An elbow for a fluid supply pipe provided With inlet and outlet passages arranged at an angle to each other, and having, at the bend thereof, a valved opening for the introduction of a lubricant. In Witness whereof, I have hereunto set my hand on this 17th day of July, 1920. i DANIEL BRANDRIFF.

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