US1288941A - Cement-applying device. - Google Patents

Description

S. LIPSON.

CEMENT APPLYING DEVICE.

APPLICATION FILED IULY 6.1918

Patented Dec. 24, 1918.

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SAMUEL LIPSON, OF EAST SAUGUS, MASSACHUSETTS, ASSIG-NOR OF ONE-FOURTH T0 HARRY ROSENBERG, ONE-FOURTH T0 JACOB ROSENBERG, AND ONE-FOURTH TO HENRY H. LEVENSON, ALL 013 BOSTON, MASSACHUSETTS.

CEMENT-APPLYIN Gr DEVICE.

1,288,94lil.

Specification of LettersPatentt Patented D643, 241, 11918.

Application filed July e, 1918. Serial no. 243,597.

To all whom it may concern:

Be it known that I, SAMUEL LIrsoN, a citizen of the United States, and resident in East Saugus, in the county of Essex and State of Massachusetts, have invented an Improvement in Cement-Applying Devices, of which the following is aspecification.

This invention relates to certain improvements in the cement applying means of machines for cementing the seams of waterproof garments, and more particularly to improvements on the means shown in my prior Patent No. 1,089,236 of March 3, 19142 The object of the present invention is to improve prior devices by providing means whereby the cement willbe more uniformly distributed over the work, and at the same time the drag or frictional resistance of the cement distributing means on the work will be decreased.

A further object is to improve the means for controlling the flow of cement, so that the exact quantity desired under different conditions, may be delivered, and the flow of cement may be cut ofi altogether, at a point closely adjacent the point of delivery, so that cement will not be wasted, or dis-' charged, when not desired, and so that the surfaces, over which the cement flows, and

duced to a minimum.

I at the line mw of Fig. 3:

Fig. 3 is a top plan view, and

Fig. 4 is a front elevation, thereof: b

Fig. 5 is a detail view of one of the casing sections: 3

Fig. 6 is a rear elevation, and Fig. 7 is a detail view of the tube-holding clamp. I I

The herein-described device is designed for use in connection with a machine such as is disclosed in my prior Patent #1,051,l36 of Jan. 21,1913, and in which a sidewalls of the casing and a cam the cement into said tube, so that a uniform discharge will be assured according to the extent to which the discharge orifice is opened.

According to my invention, a short length of hose pipe 2, of rubber, woven cotton or other flexible material, and adapted to be bent and collapsed, is slipped onto the lOiWBl' end portion of the tube land a tight connection is formed therebetween by clamps 3, or other suitable means. A casing 4 is provided which is'preferably made in two parts bolted together and which is adapted to receive the tube 1 and-hose pipe 2. The upper portion of said casing is cylindrically formed and provided with an inwardly projecting flange 5 at its upper end and a similar flange 5, adjacent its middle portion, said flanges being bored to fit and slide freely on the upper portion of the tube 1. The lower portion of the casing 4 is made approximately square in cross-section, to

provide a-flat rear wall, and flat side walls, the portion of the casing at the front being open and the front edges of the side walls being rearwardly inclined. v

A shaft 6 is rotatably mounted in 7the is mounted thereon,-midway between said side Walls, said shaft havin a handle 8v on its outer end for rotating t e same. A tongue, 9, is mounted to swing on a pivot 10, supported in the casing side walls at a substantial distance above the shaft 6, and extends downwardly between said cam 7 and the lower end of the hose pipe 2. Said tongue 9 extends throughout nearly the entire width of the space between the casing and is reversely curved, so that it extends rearwar-dly as it extends downwardly, and "is held so that-its. lower end portion depends nearly vertically. A clip 12 is provided, consisting of a flat plate having its middle portion offset to form a longitudinal groove 13 on one side, and corresponding shoulders 14 and 15 on the opposite side, The length of said clip corresponds to the diameter of the hose pipe 2, when pressed flat, or collapsed, and one fiat portion thereof at one side of said groove is inserted in the end of said pipe, so that the end of the latterbears against the adjacent shoulder 14. Said clip is clamped against the inner side of the rear wall of the casing by means of screws,

whichpass therethrough, from the bottom of the groove therein, into said rear wall,

- so as to clamp approximately one-half of the lower end-portion of the pipe 2 against the rear wall of the casing and provide a flat surface within the pipe against which the other half portion of the pipe may be.

pressed.

With the above described construction, therefore, when the shaft 6 is-rotated, so that the cam 7 thereon will operate to swing the tongue 9 rearwardly, the latter will press the adjacent half-portion of the pipe against the adjacent face of the clip 12, so as to close the lower end of the pipe completely. The tongue 9 is provided with a lip 16 on its lower end, which'extends at right angles thereto, in position to pass into the groove 13 of the clip 12, in close ,engagementwith the upper side of said groove, to cut off the flow of cement directly beneath the end of the pipe 2.

A spreading lip 18, of readily flexible,

' resilient material, such as soft rubber, is

clamped against the inner side of the rear wall of the casing 4' by the lower portion of the clip 12, and depends below the lower end of said wall a suitable distance, said lip also being of sufiicient length to extend from oneside wall to the other of the easing, so that cement issuing from the pipe 2 will be delivered in front of'said lip and be forced to pass beneath the same as it is discharged onto the work, and the work is carried beneath it.

A coil-spring 20 is arranged on the tube 1 between a collar 22 secured on the tube, and the inwardly projecting flange 5, so that the spring 20 acts to press the casing down wardly and normally holds the flange 5 against the upper side of collar 22, the casing, therefore, being adapted to yield upwardly against the action of the spring 20.

A pair of friction rollers 24 are mounted on the lower end of the casing, said rollers being journaled on a cross-bar 26, which is connected to a yoke 28, slidably mounted on the rear wall of the casing and adapted moving the cam 7, so as to relieve the pressure on the tongue 9, the discharge of cement throughout the entire width of the pipe 2 will be permitted and the cement will flow down in front of the lip 18 in a thin,"wide sheet, and be spread thereby uniformly throughout thev length thereof. The force with which the lip 18 is pressed against the work will largely depend on the balance' between the downward action of the spring 20 and the supporting action. of the springs 30, so that, by adjusting the position of the collar 22. on the tube 1, this force maybe varied or adjusted as desired and the frictional engagement of the lip with the work regulated.

The flow of cement may thus be accurately regulated, and may be cut off at a point in close proximity to thework, so

that the operator may close the delivery pipe as he reaches the end of the, seam without causing waste of cement. The device may also be easily cleaned, as the cement-carrying' surfaces which will be exposed to air when the machine is not in use, are readily accessible and of small area.

' As the spreading lip, if of rubber, will, in

time, be dissolved by the solvent used. in rubber cement, it may be readily removed, by loosening the clip 12, and another substituted.

I claim;

1. A cement applying device comprisinga flexible pipe having means to supply liquid cement thereto; supporting means for holdingthe discharge end of said pipe in proximity to the work, and means carried by said supporting means for pressing the walls of said pipe together at its discharge end.

2. A cement applying device comprising a rigid cement supplying tube having'a flexible pipe connected to itsdischarge end, a support mounted on said tube, and means carried by said su port for pressing the walls of said flexible pipe together to control the discharge therefrom.

3. A cement applying device comprising a support having-means. to hold the same in proximity to the work, a flexible pipe having means to supply liquid cement thereto, and having its discharge end connected to said support, and means carried by said support for compressing the discharge end of said pipe to control the discharge therefrom.

. 4. A cement applying device comprising a cement supply ng tube adapted to be stationarily supported, a casing yieldably mounted said pipe at its discharge end arranged to form aseating surface and to hold said end in proximately to the work, a presser plate disposed oppositely to said seating surface and means carried by said support for forcing said plate toward said seating surface, to control the discharge from said pipe.

6. A cement applying device comprising a flexible, collapsible pipe having means to supply liquid cement to the upper end thereof and to sustain said end in a relatively fixed position, a support connected to the lower end of said pipe and having aseating plate arranged to engage the lower end portion thereof at one side, means on said support to engage the opposite side of said pipe to compress the same against said seating plate, and spring actuated means permitting said support to yield upwardly.

7. A cement applying device comprising a stationary support, a flexible cement-- spreading lip carried by said support in position to dragon the work, as the latter is fed therebeneath, and means to feed liquid cement in front of said lip.

8. A cement applying device comprising a flexible pipe having means to supply liquid cement thereto, supporting means for holding the discharge end of said tube in proximity to the work, a flexible cement spreading lip carried by said supporting means in position to drag on the work as the work is fed therebeneath, and to receive cement from said pipe in front thereof,and means to compress said pipe at its discharge end to control the flowof cement therefrom.

9. Apement applying device comprising a collapsible pipe having means to supply liquid cement to the upper end thereof, a support having a seating plate arranged to engage one side of said pipe in proximity to its lower end. means carried by said support to collapse said tube against said seating plate, a cement spreading lip removably connected to said support and extending from the normally seated side of said pipe in position to drag on the work and to receive cement from said pipe as it is discharged therefrom. g

10. A cement applying device comprising a collapsible pipe having means to supply liquid cement to the upper end thereof, a support arranged at one side of the lower end of said pipe, a plate insertible within the pipe for clamping one side portion thereof against said support and providing a seat for the opposite side portion thereof, means on said support for forcing the latter side portion against said seat, a flexible spreading lip and means to clamp the same against said support directly beneath the end of the clamped side portion of said pipe.

In testimony whereof I have signed my name to this specification.

SAMUEL LIPSON.

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