US2411224A

US2411224A - Welder's helmet

Info

Publication number: US2411224A
Application number: US552498A
Authority: US
Inventors: O'reilly Joe
Original assignee: WELDING SERVICE SALES Inc
Current assignee: WELDING SERVICE SALES Inc
Priority date: 1943-06-19
Filing date: 1944-09-02
Publication date: 1946-11-19
Anticipated expiration: 1963-11-19

Description

Nov. 19, 1946. J. OREILLY 2,411,224

WELDER S HELMET Original Filed June 19, 1945 2 Sheets-Sheet 1 IN V EN TOR. J55 O EEILL @ZoQM/WM Nov. 19, 1946. J. OREILLY 2,411,224

WELDER S HELMET Original Filed June 19, 1943 2 Sheets-Sheet 2 I W? 70 ii 60 4 n /r I) BY 56 $2 46 mf ww df faenznr Patented Nov. 19, 1946 WELDERS HELMET Joe OReilly, Tacoma, Wash., assignor to Welding Service Sales, Inc.,'San Francisco, Calif, a corporation of California Original application June 19, 1943, Serial No.

491,452. Divided and this application September 2, 1944, Serial No. 552,498

4 Claims.

This invention relates to welders helmets or masks, and devices of a like character comprising a head band and a mask body that is supported therefrom for pivoted movement between a lowered, face protecting position, and a lifted position at which it is disposed out of line of vision of the user; the invention being a divisional part of an application filed on June 19, 1943, under Serial No, 491,452, and having for its principal object, first, to provide an improved type of window and ray filter glass holder within the front wall of the mask that will permit convenient and easy changing of window or filter glass when such is required, and also will permit the filter glass to be adjusted out of the line of vision without lifting the mask; second, to provide an improved type of flip front window and novel 'means for yieldingly holding it either in raised or lowered position; and, third, to provide various improved features in the general construction of parts that will simplify and lessen the cost of production of such devices.

Other objects of the invention reside in details of construction of parts, and in their combination and mode of use as will hereinafter he fully described. V

In accomplishing the above mentioned and other objects of the invention, I have provided the improved-details of construction, the preferred forms of which are illustrated in the accompanying drawings, wherein Fig. 1 is a perspective view of the present helmet or mask as seen from the front, with the filter glass frame in its raised position. 1

Fig. 2 is a central, vertical section through the mask, illustrating the mode of application of the device to the users head.

Fig. '3 is an enlarged vertical section through the window structure, with the flip frontin closed position.

' Fig. 4 is a perspectiveview of the window frame and filter glass mounting frame, parts of which are broken away for .purpose of better illustration.

Fig.5 is an enlarged sectional detail of one of the mounting hinges ofthe fiip' front" frame.

Fig. 6 is a section on line 6-6 in Fig. 5.

Fig. '7 is a perspective view of one of the plate holding springs clips. I

Referringmore in" detail to the drawings- Devices of this kind are usually worn by welders to protect their faces against .heat and flying metal sparks, and to protect the eyes against-the glare of the welding flame, and it is advantageous that the mask body be supported from the'head nated in its entirety by reference numeral l0, and

a head harness which is designated in its entirety by reference character II. The head harness, as seen best in Fig. 2, comprises a band I2 that is shaped to encircle the head of the user of the mask. Another strip- I5 is arched to cross over the top of the head and this is attached at'its ends to the'band l2 centrally at the front and at the back of the head.

Fixed to the band I2, at opposite sides, andagainst the outside surfaces of the band, are latch blocks 2i], and also fixed in the band and extended outwardly therefrom and centrallythrough the blocks 20 are pivot trunnions 2| on which the opposite side wall portions of the mask body are mounted.

The mask body ismade of a light, durable and fire resisting material suchas fiber or sheet metal. As best shown in Figs. 1 and 2, it comprises a substantially flat front wall 25 from which opposite side portions 26 are turned back in divergence. Also, there is a' top portion 21, which is rearwardly and upwardly inclined from the top edge of the front wall. The opposite side flanges of this top section are overlapped with and are attached to corresponding side portions, by rivets, or the like, as indicated at 29 in Fig. 1. Also, there is a bottom wall portion 30 that is turned back from the bottom edge of the front wall to underlie the chin of the user.

The trunnions '2! which extend from the head band I2, at opposite sides of the harness, extend pivctally through the rear edge portions of the side walls 26 of the mask, and permit the mask to be swung upwardly thereon from the position in which it is shown in Fig. 2, to a position over the head. Inthe latter position, it is out of the line of vision of the wearer.

In the use of sucha device, it is quite advantageous that it be not required to remove the mask from the head; but that a clear view ofthe work be provided merely by tilting the mask to the raised position, where it will be yieldingly held during inspection of work, and then to bring it down to 'a lowered, protective position as soon astthewelding torch is brought into use. It is required, however, thatsome meansbe provided to yieldingly retain the mask at a set position. This means is not a part of the present invention, but is set out in the application of which this is a divisional part. Also, in the lowered position of the mask, it is naturally required that provision bemade fornot obstructing view of the work. Therefore, a window is placed in the front wall 25 in alinement with the users eyes, as will be understood by reference to Fig. 2.

The window which is applied to an opening in the front of the mask comprises a rectangular frame designated in its entirety by reference character 40. This frame is preferably of plastic, having extending flanges 4| surrounding the frame and designed to engage flatly against the front wall about the opening in the mask, and to receive attaching rivets or bolts 42 therethrough, as noted in Figs. 1 and 3. The frame 40 also comprise

flanges

43 and 44 that, respectively, project outwardly and inwardly with respect to flange 4!. The flange 44 sets oil a rectangular frame that extends through the front wall opening, as seen in Figs. 2 and 3, and fitted within this flange 44 and seated about its edges against 'abottom' flange 4|, surrounding the window opening in the frame 40, is a plain glass panel '45 which may be of one or more layers. Hinged to the front of the frame flange43 to swing outwardly and upwardly therefrom, is another window of the flip front typecomprising a frame 48 in which a filter glass panel 49 is mounted. The hinge mounting for this window is best illustrated in Figs. 5 and 6 and will later be described in detail. The panel 49 is of dark glass or what may be termed ray filter glass, designed to protect the 'users eyes from the glare of the welding torch, and overlying this, is placed a panel of transparent glass 50 merely to protect the more expensive ray filter panel.

In order to hold the

glass panels

45 and 49 in place in their respective frames, I have provided each frame with a spring wire holding clip, one of which is shown in Fig. '7. Each clip comprises a cross portion 60 from which extend opposite side portions or leg portions GI-BI, :bent substantially at a right angle to the cros portion and formed with out-turned pivot ends 6252, se ving as mounting trunnions or pivots. The pivot ends 62 of the clip that is applied to the frame 4G are seated in holes 62a in opposite side parts of the flange 44 that surrounds the Window opening. Likewise, the leg portions of the clip that is applied to the hinged frame 48, are applied to holes 62b in the opposite sides of that frame. The cross portion 60 of each clip is bowed away from the glass panel which it retains, as will be observed in Fig. 4. Likewise, the legs til-6i are bowed, but inwardly so as to engage along their medial portions with opposite side edge portions of the glass panel, and there is a lug 63 projecting from the panel enclosing flange back of which the cross piece 60 may be engaged to hold the clip functionally engaged with the glass panel. When so held, the inwardly bowed legs iil6l will be pressed tightly against the ends of the glass panel to hold it in place, as

understood by reference to Figs. 3 and 4. The

legs Bl-Bl, for a major part of their length, overlie the corresponding edges of the panel, but

along their inner end portions, are outwardly offset so as to lie outside the panel edges. At the ends of these offset portions, the trunnions 62 are formed. When it is desired to remove a glass can see through the clear glass panel 45.

lug 63, then to swing the wire clip outwardly on its pivots, as shown in dotted lines in Fig. 3, leav-' as noted in Figs. 5 and 6, with projecting lugs Iii, each of which is located within the open upper end portion of a spring retainer housing II that is formed as a part of the frame 40 which is fixed to the mask. As seen in Fig. 5, each lug I!) has a pivot or hinge pin l2 extended therethrough, and through the side walls of the housing, whereby to hingedly mount the flip frame 48 in such manner that it can be closed over or lifted from the frame 40. In Fig. 1, the frame 48 is shown in its raised positionso that the'mask user In Fig. 2, the flip frame is shown closed over theframe 49 so that the user eyes are then protected against glare by the panel 49.

Each lug 16 has two flat end surfaces 15 and J6 in planes at nearly a 90 angle to each other, and within each housing is seated a coiled spring it which at one end mounts a seat thereon. Each seat comprises a block 19 formed with a flat top surface 19' and with a stem portion that extends axially into the coils of it mounting spring to hold the seat in proper position. The block substantially fits the housing, and it retains the spring against upsetting in the housing.

As will be observed in Fig. 5, the spring acts directly toward the hinge pin .and therefore when the flip front is raised, the spring presses the block tightly against the flat surface 15 and thereby yieldingly retains the flip front in raised position. When the flip front is pushed toward closed position, the front mounting door swings about the hinge pin, bearing inwardly on the block, compresses the spring and finally the flat surface of the block is permitted to engage flatly with the surface 16 of the lub, thereby to yieldingly hold the flip front in its closed position.

The hinge construction is such that whenever the point of the lug at the junction of surfaces 15 and 16, passes over a dead center position in swinging the flip front from one position to another, then the spring acts to snap the frame '40 to the position toward which it is being moved.

- essential or desirable.

The provision of this flip front window permits clear vision when such is desired without lifting the mask, and provides for the quick and convenient closing of the ray filterwindow during the welding operation for the protection "of the user's eyes. The novel clips for holding the'gl-ass panels in place permits easy and quick removal and replacement of the panels, when such is required.

Having thus described my invention, what I 5 claim as new therein and desire to secure by Letters Patent is:

1. In a Window for shields of the character described, comprising an open, rectangular frame having an inwardly extending flange and a transparent panel removably applied in the frame and seated against said flange; a clip applied within the frame opening to retain the said panel in place; said clip comprising a cross member extending across the frame opening adjacent one edge of the panel, and opposite end legs extending from the ends of the cross member along and overlying opposite edge portions of the panel and ivoted at their ends in the frame in a manner allowing the clip to be swung outwardly from the panel for its removal, and a lug on the frame back of which the said cross member of the clip can be removably engaged thus to hold the opposite end legs of the clip pressed against the panel and the panel seated in place.

2. A clip as recited in claim 1 wherein the cross member is resilient and is bowed between its ends away from the panel and is placed under tension when holdingly engaged against said lug.

3. A spring clip as recited in claim 1 wherein the opposite end legs are resilient and are bowed between their ends toward the panel and are placed under tension when pressed against the panel by the seating of the cross member against the holding lug,

4. In a window for shields of the character described comprising an open, rectangular frame having an inwardly extending flange, and a transparent panel'removably contained in the frame and seated against the flange; a clip applied within the frame to retain the said panel in place; said clip comprising a spring wire cross member extending across the frame opening adjacent one edge of the panel, opposite end legs of spring wire extending from the ends of the cross member along and overlying the opposite edge portions of the panel for a substantial distance, then offset outwardly beyond the edges for a short distance, then turned outwardly to form mounting pivots that are pivotally mounted in the frame to permit the clip to swing in the frame toward and'from the panel, and a lug on the frame back of which the cross member may be engaged to hold the panel in position.

JOE OREILLY.