US1305086A - Device - Google Patents

Description

A. A. FRYER. SANDING DEVICE.

' APPLICATION FILED MAR.6.1917- RENEWED NOV. 23,1918.

mwfiw Patented May 27,1919.

' ill ALVA A. FBYER, OF KANSAS CITY, MISSOURI.

SANDING DEVICE.

i1,3 5,08fi.

Application filed March 6, 1917, Serial No. 152,497.

[0 all whom, it may concern:

Be it known that I, ALVA A. Farm, at citizen of the United States, residing at Kansas City, in the county of Jackson, State of Missouri, have invented certain new 3 and useful Improvements in Sanding Devices, of which the following is a full and exact specification.

The present invention relates to means for feeding sand from sand domes or boxes and the like, and aims to provide an improved construction of such means which will operate effectively on the vacuum or su-ctlon feeding principle to produce a proper and uniform feeding of the sand. To this end a device is provided having a minimum number of parts all ositioned outside the sand box or dome an presenting an open unobstructed passage for the flow of the sand. It is also an object to devise a construction to which access may be readily had to any part for cleaning, whenever necessary, with a minimum of trouble and delay and without removing the attachment.

A special feature of improvement is in relation to the arrangement and construction of the air nozzle for protecting the same against sand action as well as for affording access thereto in the most advantageous manner, and also in the position of said nozzle for exercising the most effective action with relation to the sand to be fed.

It is also sought to produce a construction operating in a manner which will subject the device to the least possible degree of wear from the sand, and having little or nothing to get out of order, and which will also be of a very inexpensive nature to manufacture.

With these general objects in view the invention will now be described with reference to the accompanying drawing illustrating one form of construction which has been devised for embodying the improvements, after which those features deemed to be novel will be set forth and defined in the appended claims.

In the drawing- Figure 1 is a central vertical section through a device constructed in accordance with the present invention; and

Fig. 2 is a plan view of the same.

Referring to the drawing in detail, the improved device is constructed in the form of an attachment comprising a tubular member 2 for feeding the sand from the sand box Specification of Letters latent.

Patented May 27,1919.

Renewed November 23, 1918. Serial No. 263,933.

or dome 4 and delivering such sand to a pipe connection 6 leading to the point where the sand is to be used, as for example, the rails ficiently tight to prevent moisture from ontering the dome to any objectionable extent.

The passage through the tubular member 2 is given approximately the form of a quadrant curving gradually downward from the level of the opening 10 until the passage through the delivery end of said member assumes substantially a true vertical in line with the pipe 6. At the receiving end, however, the bottom of said passage rises on a slight incline from the horizontal (as shown in Fig. 1) so as to retard somewhat the movement of the sand which collects in this end from the dome and serves to retain the sand in the mouth of the receiving end of the device until the vacuum action of the nozzle is exerted thereon as hereinafter explained. At the opposite or delivery end of the tubular member, connection is made with the pipe 6 in such a manner as to maintain the bore of the passage at said connection uniform and leave no shoulders or abutments for the collection of sand.

In line with the vertical passage through the delivery end of the member 2 and its pipe 6 is formed a nozzle chamber 14, preferably constructed integral with the member 2, the nozzle passage 16 of which chamber 14 is arranged in position to discharge straight downward through said vertical passage; and it is to be noted also that the discharge from the nozzle is at a level below that of the receiving end of said member 2. A pipe 18, communicating with any suitable source of compressed-air supply (as, for example, the main reservior of the train supply), is threaded into the side of said chamber 14 above the nozzle passage 16 and below a clean-out plug 20 which is threaded into said chamber from the top and is also in vertical alinement with said nozzle passage and the vertical passage through the delivery end of the member 2.

A clea'a l-out. passage 22 is also formed. in the horizontal portion of the tubular member 2 and provided with an opening 23 fitted with a plug 24, the removal of which affords access directly to the-receiving end of said member 2, the opening 23 for receiving said plug 24 being located to the rca r of the plug 20 and thus out of the way oi the latter so as not to interefere inany way with the manipulation of plug 2001'- the cleaning of the nozzle chamber.

It will thus be apparent that an extremely simple but efficient arrangement and construction have been devised for carrying out.

the desired objects of the invention. Air beingv admitted under pressure through the pipe 18'and discharged down through the nozzle passage 16, a vacuum or suctlon action is exerted on the receiving end of the sand passage, with the result that the sand is pulled down over the curve in said passage until it simply falls under the combined action of gravity and air current down through the pipe 6. This quadrant arrange ment and position of nozzle below the initial ,level of the sand has proved the simplest and most effective construction for inducing a sand flow with a minimum of wear as well as a minimum force of air. Theslight incline at the receiving end of the passage shown in Fig. 1 serves to retain the sand from passing out by gravity or the jolting due to ordinary vibration whenthe device is used on a locomotive. In many common forms of construction it is found that the nozzle is both difiicult to clean and also subject to a great deal of wear due to contact with the sand, and such nozzles acting with a force feed also produce considerable wear on other parts of the device. In the present construction the nozzle is practically entirely out of the path of the sand and contact therewith so that the wear on the nozzle is almost negligible and its life will equal that of the remainder of, the device; and since the feeding action is, in the main, a vacuum or suction feed, the sand is not driven by force against the other parts of the device, but is simply drawn down from its initial position until-subjected to gravity action which may then be left to complete the feeding movement.

The form of nozzle is also such that it may be cleaned in the simplest manner, without disconnecting the air pipe, by merely'removing the plug 20 from the chamber 14 and inserting a wire through the passage 16.

The receiving end of the member 2 can be readily reached through the clean-out pas-' sage 22 by removing the plug 24, and the plugs 20 and 24 are arranged so that the operation of either will not interfere with that of the other; moreover, these plugs can be made to turn sufficiently freely so as not to require a wrench and at the same time exclude any objectionable degree of moisture, since anyv moisture passing these plugs will not reach the sand at the receiving end of the device but will simply pass down and out through the pipe (3. It will be understood that in opening the passage 22, this may be donewithout shutting off the air, since air .will simply be sucked in through the plug opening 23 without affecting the sand in the recelving end of the device, and a wire or the like maybe used to loosen any coarse particles, wet sand'or other obstruction which may be clogging said receiving end, and

such obstruction pulled away from said re- While the foregoing represents what is nowdeemed to constitute the preferred form of construction, the right is reserved to all such formal changes or modifications as may fairly fall within the scope of the appended claims.

What I claim as new and desire to protect by Letters Patent is:

1. A sanding device comprising a tubular member having a receiving end adapted to be attached to a sand box, the passage through said member extending on a downward curve from the receiving end of said member to the delivery end thereof, and an air nozzle associated with said delivery end of the member in position to discharge in a downward direction in line with the passage therethrough, the delivery end of said nozzle being located out of the path of the sand flow and below the level of the receiving end of the member.

2. A sanding device as specified in claim 1, in which the passage through said receiving endinclines slightly upward in the direction of the sand flow through. said passage.

3. A sanding device as specified in claim 1, in which said nozzle is provided with a clean-out plug in direct alinement with said passage through the delivery end of the tubular member.

4. A sanding device comprising a tubular formed with a nozzle chamber provided wit a nozzle passage and a clean-out plug both in vertical alinement with the passage through the delivery end of said member, said member being also provided with a clean-out passage affording access to the receiving end of said member and fitted with a plug displaced horizontally from the line of .said nozzle and delivery passages for permitting free manipulation of said first plug and cleaning of said nozzle passage.

5. A sand device comprising a tubular member'having a receiving end adapted to be attached to a sand box, the passage through said member being of approximately quadrant form curving downwardly with the receiving end in approximately horizontal position, and an air nozzle located in position to discharge downwardly in line with the passage through the delivery end of said member, the bottom of the passage adjacent the receiving end of the member having a slight rising incline for retarding the flow of sand until drawn out by the action of the air nozzle.

In testimony whereof I hereto aflix my signature. 7

ALVA A. FRYER.

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