US1968891A

US1968891A - Fountain coating implement

Info

Publication number: US1968891A
Application number: US632375A
Authority: US
Inventors: Arthur S Johnson
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1932-09-09
Filing date: 1932-09-09
Publication date: 1934-08-07
Anticipated expiration: 1951-08-07

Description

7, 1934- A. s. JOHNSON FOUNTAIN COATING IMPLEMENT Filed Sept. 9. 1932 //v VE/V ma (1M5 m g amw Patented Aug. 7, 1934 g UNITED STATES PATENT QFFIQE t J V Q r I 1,968,891 Q t I I l FOUNTAIN COATING IMPLEMENT Arthur 'S. Johnson; Beverly, Mass.,-assignor to United Shoe Machinery Corporation, Paterson,

N. J., a corporation of New Jersey Application September 9,1932, Serial No. 632,375

1 Claim. (Cl. 91-39) This invention relates to devices for applying the movable valve member by a fixed cementcoating materials and is herein illustrated as tight joint. This avoids the use of any sliding embodied in a hand implement of the fountain or movable joint which is exposed to the cement. type particularly adapted for applying cement Inthe illustrated construction the flexible bel- 5 such, for example, as pyroxylin cement. lows used is a corrugated inner casing which 60 In connection with the manufacture of compo contacts with the inner wall of an outer casing shoes, the application of pyroxylin cement to or handle and guides the valve member to its shoe parts at a number of stages in the manu- .seat. When this device is embodied in a portfacture of the shoes has formerly for the most able cement-applying implement the applying part, been carried out by means of an ordinary member is-mounted upon one end of a hollow 55 hand brush dipped in an open cup containing handle in which the above-mentioned chamber cement. The quick-drying properties of the and valve are enclosed and through which the cement make cementing by the use of such an cement is conducted. As illustrated, the outlet arrangement wasteful, diflicult of control and opening of this chamber is in an apertured plug generally untidy as well as relatively slow. Thus, having a sharp edge which forms a seat for a 70 for instance, in thepreparation of compo shoes, tapered valve member which will make sub:- and also shoes of certain other types, for side stantially a line contact with the seat and therelasting, it has been alcommon practice to apby avoid any danger of valve sticking. Preferplypyroiiylin cement with a brush to the inner ably, and as illustratedthemovable valvememside of the, lining or doubler and between the her extendsthrough and is sealed tightly in the 75 doubler and the upper, .priorfto the lasting operam d p i the fi Q bellows t e Outer tion iii which the upper is stretched and overedge of which is secured to the surrounding lapped upon thef'insole. On the other'hand, in handle. The illustrated app y device i a some factories this operation has been carried brush, to theinterior of which the cement is out with the'assistance of apparatus of the genconducted. r a eral type'illustrated in Letters Patent of the t In the drawing Fi 1 is a vertical-longitudi- United States No. 278,086, granted" May 22; nal section through the axis of the device; and 1883, to C. K'. Bradford, in the use of which Fig. 2 is atransverse section on the'line II cement is delivered under pressure from a sup- II of Fig. 1.

30 ply receptacle through a flexible hose to an ap- Cement is conducted from a source of supply p ying brush, a valve b ing pr vi to n l (not shown), where it usually will be under th d iv ry f cement- T p p r i of p pressure, through a flexible hose (not shown) roxylin cement render undesirable, however, the and is delivered to upper end 10 f an 311% use in such a controlling valve of moving joints pipe 12 f cement app1ymg device This 7 35 such as sliding or rotative joints, which are ex- Vice is shown a portable implement comprisu po d to the cement because of t danger that ing a tubular outer casing serving as a handle the device will become clogged and the movable 14 and carrying at its lower end an applying pa Will C device in the form of a brush 16 surrounding an With this in view, an object of the present inoutlet passage from this casing. It will be unvention is to provide an improved fountain cederstood, however, that the invention is not limment-applying device which will be well adapted ited to this or to any particular form of applyfor use in the application of pyroxylin cement m d i W t u clogging a d W thout the sticking of any Control 'of the passage of cement through the movable Da implement is effected by a tapered, conical valve In the attainment of this object and in accordmember 20 formed integrally t and upon ance with a feature of the invention, the conth lower end of t 1 1 1; pipe 2 and p051- trol of the p a of m t tw n a source tioned within a chamber 22 to control the outof pply and n p yi m mb r i efiected by let opening 24 therefrom. The inlet opening a valve associated with and controlling the outof this chamber is a lateral passage 26 connectlet of a chamber though which cement is coning the inside of the inlet pipe 12 with this same ducted from the Source Of supply to e pp ying chamber 22. The cement is therefore free to member. This valve comprises a movable memflow into the chamber 22 but may not pass out r passing through a fl x ll ws serving as of the chamber unless the valve 20 is lifted j 5' a part of the walls of the chamber and sealed to from the valve seat formed in a plug 30. The

valve seat is formed by drilling a cylindrical outlet passage 24 through the plug 30 so that the conical valve 20 cooperates with the sharp upper edge of this outlet and there is little danger of clogging of the valve which is selfcleaning. The plug 30 in which the valve seat is formed is of hard metal, such as steel, and is held frictionally in a transverse partition 32 formed in a sleeve 34 threaded on the lower end of the cylindrical handle. The applying brush 16 is mounted in a tip 36 threaded in the lower end of the sleeve 34 and provided with a tube 38 which enters the outlet passage 24.

The plug 30 and the partition 32, together with the sleeve 34, define a portion of the-chamber 22 and the remaining wall of the chamber is closed by means of a flexible member so forming a tubular casing having circumferential corrugations allowing substantial longitudinal expansion and therefore acting as a diaphragm: This corrugated casing or bellows is secured at its outer edges 42 to the inside of the handle 14 adjacent to the chamber 22 to make hermetically sealed joint and is sealed at its center which is its upper end to an enlargement 44 upon the inlet tube 12. This bellows, the convolutions of which touch the inside of the handle, may be secured at its upper and lower ends as by soldering to form a cement-tight flexible wall between the handle 14 and the movable valve member 20 so that in order to secure movement of the valve member it is not necessary to provide a sliding or a rotative joint which will be cement-tight and liable to freeze. The lower end of the inlet pipe 12 is centered by the engagement of the bellows with the inner wall of the handle.

Actuation of the movable valve member 26 may be effected by means of a bell crank lever 50 having a fingerpiece 52 and forked at its upper end to permit it to be pivoted upon a lug 5e formed upon the side of the handle 14. A screw 56 forms a pivot passing through the forked ends 58 of the bell crank and the lug 5a. The forked ends of the bell crank extend through silts 60 in the handle and have rounded terminals 62 received between flanges 6e and 66 formed integrally with the inlet tube 12. .A helical spring '70 encircling the inlet pipe 12 is positioned between the flange 64 and a plug 72 which is threaded in the upper end of the handle 14 and by which this inlet pipe 12 is guided as it slides freely therethrough. This spring keeps the valve normally closed.

The arrangement is such that no sliding joint is required at any point which is exposed to the cement with the likelihood that it will freeze and require frequent cleaning. If cleaning of the valve seat in the plug 30 or of the tube 38 is required, it can easily be accomplished by unscrewing the sleeve 34 and, if necessary, separating the tip 36, and immersing these parts in solvent. The construction requires only one sliding joint, that between the inlet pipe 12 and the plug 72 at the upper end of the handle, and this joint is not exposed to the cement, thereby permitting it to be lubricated and kept free without any difficulty. No opportunity is provided for leakage of cement through the openings 60 in which the forked ends 58 of the handle are inserted and as a consequence a simple, easily manufactured construction is provided.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

In a portable cement-applying implement, a hollow handle having a guide at one end and an applying member at the other end, an inlet pipe slida-bly mounted in said guide, said handle also having an outlet passage extending from the interior of said handle to said applying member,

a valve member movable with said inlet pipe and controlling said outlet passage, a corrugated bellows one end of which tightly surrounds and is sealed to said inlet pipe and which .is sealed at its other end to the interior of said handle to form a chamber communicating with said inlet pipe and said outlet passage, said bellows con- ARTHUR S. JOHNSON.