US1422409A

US1422409A - Safety screen

Info

Publication number: US1422409A
Application number: US473981A
Authority: US
Inventors: James L Bernard
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-05-31
Filing date: 1921-05-31
Publication date: 1922-07-11
Anticipated expiration: 1939-07-11

Description

1. L. BERNARD.

SAFETY SCREEN. APPLICATION FILED MAY31,1921.

Patented July 1l, 1922.,

2 SHEETS-SHEET 2.

'een a,

lilac rarer JAMES r.. BERNARD, on BEAVER., rENNsYLyANiz-i.

To` @ZZ towm it may concern:

Be it known that I, JAMES L. BERNARD, a

`citizen of the United States, and'resident of Beaver, in the county of Beaver and State of Pennsylvania, have invented certain new and useful Improvements in Safety Screens, of which .the following is a specification. y

This invention relates to a vsafety screen adapted to prevent flying objects from striking an operator of 'a machine or other device. 1

lOne/object fof. my invention .isto provide a light mesh screen. ythat will have sufficiently fine mesh to prevent objects passing therethrough and yet will be sufliciently open rto permit substantially unobstructed vision therethrough.

Iinother object is to provide a screen of the class described that will be sufficiently flexible to fold or drape itself around the hands or arms of the operator when he reaches under the screen to manipulate his work.

In `the accompanying drawings, Figure l is an end elevation showing my invention applied to a laboratory table having suitable testing apparatus thereon.

Figure 2 is a front side elevation thereof.

Figure 3 is an enlarged section of the screen mesh showing its structure.

Figure a is an enlarged end view of the mesh.

Figure 5 is a side elevation of a power punch showing my screen applied thereto.

Figure 6 is a front elevation of the punch of Figure 5.

Referring particularly to the dra-wings7 the numeral 2 `designates a laboratory table having supporting legs 3 and a verticalv front wall 4 projecting upwardly from the top thereof. The wall 4 is provided with a suitable opening 5 throughwhic-h the operator may manipulate the apparatus 6 on the table 2.

As is often the case in conducting laboratory tests or experiments, gases are generated which will explode, breaking the apparatus and scattering particles in all directions. These explosions are very dangerous and the operator has often been very badly injured by flying particles.

To prevent the operator being injured by the flying particles of exploded apparatus I have provided a flexible metal mesh screen 7, which is secured and suspended by strips SCREEN.

Speccation of Letters Patent. Pagnt-.Qd truly il,

1921. Serial No. Q -73,991.

8 along the top edgeof the `opening 5, so

asA to hang between and separate the operator from the apparatus G.V

The screen 7 is composed of transverse interlinked spirally wound strands 9, which are -wound sufficiently close to form a substantial barrier to prevent the passage `of flying particles and yet `a-re suiiiciently open to permit substantially unobstructed vision of the apparatus 6, so `that while `the operator -is protect-ed from flying particles of the apparatus in case of an explosion, yet he may readily perceive the actions ofthe test or experiment.

The strands 9 are composed -offcoinparatively light flexible wire so that when the operator puts ihis hand under the screen .to work or adjust the apparatus 6. the screen will drape or vfold around his hand substantially as shown in Figure 2.

In Figures 5 and 6 I have shown my screen applied to a power punching machine to protect the operator thereof from flying particles of metal without interfering with his view of the work. In this construction the punching machine is manipulated in the usual way. That is, the operator stands in 'front thereof and positions the work piece as to hang between the operator and the' work.

Ihile I have shown my screen as applied to a laboratory table and a punching machine it is in nowise limited to such use, since it .may readily be adapted to many other machines and apparatus where it is desired to protect the operator from the danger of flying particles of metal, glass, etc., without obscuring his View of the machine or apparatus and the work.

I claim 1. The combination with a laboratory table having a vertical front wall extending upwardly from the top thereof, and provided with a suitable opening through which an operator may manipulate any desired apparatus supported on said table, of a safety screen adapted to close said opening to prevent objects that may be exploded on said table striking the operator, said screen comprising a flexible metallic intermeshed member having its one side secured along the top of said opening, l'and having its other" three sides free. y

2. The combination with a laboratory table having a vertical front wall extending upwardly from the top thereof, and provided with a suitable opening through which an operator may manipulate any desired apparatus supported on said table, of a safety `screen. adapted to close said opening` to prevent objects that may be exploded on said table striking the operator, said screen comprising a flexible metallic intermeshed member having its one side secured along` the top of said opening, thereby suspending said member between the instruments on said table and the operator, said member` being of sufficiently fine mesh to pr vent objects passing therethrough, and yet sufficiently open to allow substantially unobstructed vision therefrom.

3. The combination with a laboratory table having a vertical front wall extending upwardly from the top thereof, and provided with a suitable opening through which an operator may manipulate any desired apparatus supported on said table, of a safety screen adapted to close said opening to prevent objects that may be exploded on said table striking the operator, said screen comprising'a flexible metallic intermeshed member having its one side secured along the top of said opening, said mesh member being composed of transversely extending interlinlred spirally wound strands.

4. The combination with a work support having a Vertical front wall, and provided with an opening'through which an operator 'may manipulate work on saidsupport, of a signed my name.

JAMES LBERNARD.