US2386656A

US2386656A - Welder's hood

Info

Publication number: US2386656A
Application number: US536987A
Authority: US
Inventors: Stanley H Carlson
Original assignee: FLEX WELD CORP
Current assignee: FLEX WELD CORP; FLEX-WELD Corp
Priority date: 1944-05-23
Filing date: 1944-05-23
Publication date: 1945-10-09
Anticipated expiration: 1962-10-09

Description

Get. 9, 1945. S H CARL-SCN g 2,386,656

wELDERs 'Hoon Filed May 25, 1944 5 Sheets-Sheet l Oct. 9, 1945. s. H. CARLSON WELDER S HOOD Filed May 23, 1944 3 Sheets-Sheet 2l Oct- 9, l945- s.l H. CARLSON l l 2,386,656

n wELDERs HOOD Filed May 23, 1944 s 'sheets-sneu s 5 Jawa/nto@ Patented Oct. 9, 1945 VVELDERS HOOD Stanley H. Carlson, Seattle, Wash., assignor, by mesne assignments, to Flex-Weld Corporation, a corporation of Washington Application May 23, 1944, Serial No. 536,987

4 Claims.

an improved operating means for shifting the s dark glass, the operating means including a "l spring-pressed lever having a chin engaging member adjustably mounted thereon so that the device may be adapted to different persons.

A further object of this invention is to provide ,t

an improved carrier for the dark glass so that the glass can be easily replaced without taking the entire device apart.

AI further object of this invention is to provide an improved lever combination connected to the prime mover and to the dark glass carrier so that a very short movement of the prime mover will provide the desired length of movement of the carrier.

To the foregoing objects, and others which may hereinafter morefully appear, the invention consists of the novel construction, combination and arrangement of parts, as will be more specifically referred to and illustrated in the accompanying drawings, but it is to be understood that changes, variations, and modifications may be resorted to which fall within the scope vof the invention as claimed.

In the drawings:

Figure 1 is a detail side elevation partly broken away and in section of a welders hood constructed according to an embodiment of this invention;

Figure 2 is a detail rear elevation of the hood;

Figure 3 is an enlarged fragmentary sectional View taken on the line 3-3 of Figure 2;

Figure 4 is a detail front elevation of the operating means for the dark glass with the front wall of the housing removed;

Figure 5 is a sectional view taken on the line 5--5 of Figure 4;

Figure 6 is a sectional View taken on the line 6 6 of Figure 4;

Figure 1 is a detail rear elevation partly broken away of the dark glass carrier;

Figure 8 is a fragmentary sectional View taken on the line 8-8 of Figure 4;

Figure 9 is a fragmentary sectional view taken on the line 9-9 of Figure 4;

. Figure 10 is a fragmentary sectional view taken on the line IU-I 0 of Figure 3; and

Figure 11 is a fragmentary sectional View taken on the line I I-I l of Figure 3.

Referring to the drawings, the numeral I5 designates generally a hood structure embodying 'op posite side walls I6, arcuate top wall I1, a bottom wall I8 and a front wall I9. The front wall I9 is preferably fiat whereas the opposite sides, top and bottom Walls are of flared construction, aring toward the rear. head of the wearer by means of a band structure which is secured or supported between the side walls I6 by means of a pivot 2 I.

A transparent panel 22 is mounted in a 'frame structure generally designated as 23. The frame structure 23 includes an inner plate 24 having an outwardly offset flange 25 extending through a window opening 26 formed in the front wall I9. A flanged bezel 21 is secured by fastening means 28 to the front wall I9, the fastening vmeans 28 also securing the plate or inner bezel 24 to theinner side of the front wall I9.

In order to provide a means whereby a dark glass may be optionally positioned in registry with the window 26, I have provided an attachment generally designated as 29 which is secured to the inner side of the front wall I9. 'I'he attachment 29 includes a housing 30 having a marginal ange 3| which is secured by fastening members 32 'to the inner side of the front wall I9. The housing 29 also includesan inner flange 33 against which a transparent panel 34 is secured by means of a bezel 35. A front wall 36, which is provided with a vertical rearwardly projecting fiange 31, is adapted to engage in the forward open side of the housing 3D and is secured therein by means of fastening members 38.

A dark glass carrier or frame 39 is mounted within the housing and comprises a pair of vertically disposed confronting channel -members 40 which are carried by an inverted U-shaped lower frame member 4I. The carrier 39 is interposed between the rear transparent panel 34 and the front wall 36 of the housing 39. A dark glass panel 42 is mounted in the vertical channel members 40, being inserted from the upper ends of these channel members so that the dark glass or panel 42 may readily be replaced when broken. A pair of longitudinally bowed `springs 43 are secured to the forward side of the rear The hood I5 is supported On the wall 44 of the housing 30 by fastening members 45. The springs 43 are adapted to bear against the rear side of the carrier 39 so as to hold this carrier in sliding contact with the front wall 3'6. The housing 29 at the upper end thereof is provided with a pivoted topV wall 46 which is adapted to be swung rearwardly so that the dark glass 42 may be removed from the carrier 39 for replacement thereof. The lower edge of the rear transparent panel 34 rests on a horizontally disposed angle member 41 which is secured by fastening members 48 to the rear wall 41.

A pair of

rock levers

49 and 56 are rockably mounted on a pivot member engaging through.

Rock leverV with a forwardly projecting pin 54 which loosely engages in a slot 55 formed in the lower frame member 4| adjacent'the oppositeend thereof from the slot 53. Rock lever 49 is provided with an extension 56 which extends on the opposite side of the pivot 5| from the lever 49 and is formed with forwardly projecting pin 51. Rock lever 50 is provided with an extension 58 which has a rearwardly pin 59 at the outer end thereof. A pitman 60 is disposed in the housing 29and is provided at one end thereof with av pin or pivot member 6| engaging in an openingv 62 fonmed in the side wall 63a of the housing 29, The pitman 60 is provided with an enlargement 63 having an elongated opening 64 within which the pivot member 5| loosely engages; so that the pitman 60 may be rocked vertically for the limit permitted by the length of this slot 64. The pitman 69 is formed with an outwardly opening slot 65 within which the pin 59 slidably vengages, and the pitman 60 is also formed with'a second slot 66 on the side of the pivot 5I opposite from the slot 65 and within which the pin 51 slidably engages. The pitman 66 at its lower portion, is provided with an enlargement 61 having a slot 68 formed therein, and a second pitman 69 is provided with a right angularly disposed lug which engages in the slot G8.' The pitman 69 is formed with a vpivot 1| engagingin the side wall 12 which is opposite from the side wall 63 of the housing 29, and the pitman 69 is formed at a point between the ends thereof with a downwardly and rearwardly inclined lug or extension 13 having an opening 14 therein. A rock lever which is formed with outwardly extending trunnions 16 is rockably carried by ,anofset l housing 11 formed at the lower portion of the rear wall 44. The rock lever 15 is provided with a head 18 loosely engaging in the slot 14 sojthat the rocking of the lever 15 will eiect rocking of pitman 69 and pitman 69.V Rock lever 15'is provided at its lower end with an arcuate extension 19 on which a slotted plate 80 is adjustably mounted. The plate 80 is adjustably mounted 0n the arcuate extension 19 by means of a fastening member 8|. The plate 8U is formed with a pair of rearwardly and downwardly extending parallel levers 82, and a-chin rest member 83 is adjustably secured between the levers 82. The chin rest member 83 comprises a body 84 having a transverse opening 85 therethrough and a pair of clamping members 86 and 81 extend through the opening 85 and are provided at their outer ends with

lianges

88 and 89, respectively. The levers 82 engage between the confronting

flanges

88 and 89 and a coil spring 99 is positioned between the two members 86 and 81 and bears against the inner sides of .the levers 82. The body 84 is split as at 9| so as to form a. split clamp and a threaded pressure member 92 engages through the outer jaw 93 of the clamp and is threaded into the inner jaw 94. The rock lever 15 is constantly urged in a counter-clockwise direction `by means ofa spring 95. The spring 95 engages about the pivot 16, and the lever 15-is tensioned by means of a tensioning screw 96 engaging one end or the spring 95 and bearing against the lever 15. The spring 95 constantly urges the lever 15 to rock in a counterclockwise direction and to thereby normally Vmaintain the carrier4| and the darkl panel 42 in an uppermost operative position which is in registry with the window opening 26. The body 84 ofthe chin rest 83 is provided with an arcuate chin engaging member 91 which may be formed integral with the body 84 and which, as shown in Figure 1, is adapted to engage 'beneath the chin of the vuser so that downward movement of the chin will cause lever 82 to be rocked downwardly, and downwardrockingof lever 82 will cause downward movement of carrier 39 to thereby move the dark panel 42 downwardly and out of registry with the window opening 26. J

In the use and operation ofthis hood, the device is mounted on the ,head of the wearer in the usual manner as shown in Figure 1. In this position, the chin of the user will rest on the chin rest member 91. Spring 95 will normally maintain carrier 39 with dark glass or panel 42 in the uppermost operative position. Whenit is desired to move carrier 39 downwardly so as to position the dark glass or panel 42 outV of registry with panels 22A and 34, the chin is rocked downwardly thereby'rocking the rear portion of lever 82.

4 0 Downward `rocking of lever 82 ywill cause lever l5 to rock upwardly at its forward end against the tension of spring 95, and upward rocking of lever 15 will raiserthe free end of pitman 69 causing lug 10 to raise the f ree end of pitman 69. Upward rocking in a, clockwise direction of pitman 66 will cause the outer ends of levers 49 and 5i] to rock downwardly.

The housing 29 with the elements. associated therewith may be mounted yon a conventional weldrs hood, sonas to thereby provide an attachment for the hood'whereby the dark glass may be optionally moved out of registry with the clear glass window, in order that `the user of the device need not continually remove'the hood in order vto clearly see the Yarticles when the welding torch is not applied to the articles.

What I claim is:

l. An attachment for a welders hoodcomprisingA a housingforattachment to the inner side o1" the front wall of the hood, said housing including front and rear walls and opposite side walls, said front and rear walls havingaligned window openings therein, a U-'shaped panel carrier slidable in said housing, a dark glass panel carried by said carrier, a top wall pivotally carried by said housing abovesaid carrier, a pair or rock levers rockably carried by said housing, a pin carried by an ena of each lever andengaging said carrier, an extension carried by each lever, a pin carried by said extension, a pitman rockably carried by said housing having slots in which said latter pins engage, a second pitman rockably carried by said housing engaging first pitman in a manner wherebyrockingof said second pitman will rocksaid-rst pitman, an

extension carried by second pitman between the ends thereof, and an operating lever pivotally carried by said housing and operatively connected to said latter extension, a spring engaging said L..

operating lever whereby to normally maintain said carrier in an uppermost operating position with said panel in registry with said openings.

2. An attachment for a Welders hood comprising a housing including a front and rear wall and opposite side Walls, said front and rear walls having aligned Window openings therein, a U- shaped panel carrier slidable in said housing, a dark glass panel carried by said carrier, a. top wall carried by said housing above said carrier, a pair of rock levers carried by said housing, a pin carried by the end of each lever and engaging said carrier, an extension carried by each lever and a pin carried by said extension, a pitman rockably carried by said housing having slots in which said latter pins engage, and means engaged with said pitman for operating the pitman.

3. The device as claimed in claim 2, and including a second pitman rockably carried by said housing engaging said rst pitman in a manner whereby rocking of saidsecond pitman will rock said first pitman, and means engaged with said second pitman for operating the second pitman.

4. The device as claimed in claim 2, and including a second pitman rockably carried by said housing engaging said first pitman in a manner whereby rocking of said second pitman will rock said rst pitman, and an extension carried by said second pitman and an operating lever pivotally carried by said housing and connected to said latter extension.

STANLEY H. CARLSON.