US2333646A

US2333646A - Safety scaffold grip and belt

Info

Publication number: US2333646A
Application number: US427020A
Authority: US
Inventors: Frankel Jack
Original assignee: Individual
Current assignee: Individual
Priority date: 1942-01-16
Filing date: 1942-01-16
Publication date: 1943-11-09
Anticipated expiration: 1960-11-09

Description

J. FRANKEL 2,333,646

D GRIP AND BELT Filed Jan. 16, 19 42 SAFET! SCAFFOL 3 Sheets-Sheet l INVENTOR. Jack 50/: He!

ATTORNEY Nov. 9, 1943. .1. FRANKEL SAFETY SCAFFOLD GRIP AND BELT 3 Sheets-Sheet 2 Filed Jan. 16. 1942 Il II II Jae/r I l' u I u "J I IN VEN TOR flea/(e! Nov. 9, 1943. F AME; 2,333,646

SAFETY SCAFFOLD GRIP AND BELT Filed Jan. 15. 1942 s Shets-Sheet 3 lnuimmlifmim mum , 1 N VEN TOR. Jae/f Fran/ e1 A r ramvzr Patented Nov. 9, 1943 UNITED STATES ATENT OFFICE SAFETY SCAFFOLD GRIP AND BELT Jack Frankel, Brooklyn, N. Y. Application January 16, 1942, Serial No. 427,020

4 Claims.

This invention relates to new and useful improvements in a life saving device.

More specifically, the invention proposes the construction of a novel type of clamp for use in a life saving device for persons working in elevated positions on scafiolds and the like and arranged in a manner to be engageable with a safety belt and an adjacent guy rope.

Still further it is proposed to characterize the clamp by a brackethaving a'iixed jaw engageable against one side of the guy rope and slidably supporting a movable jaw arranged in a manner to be engageable against the guy rope on the side opposed to the side engaged by the fixed jaw.

A further object of the invention proposes a novel means for supporting the movable jaw upon the bracket in a manner to be movable to wards the fixed jaw for rigidly gripping the guy rope.

It is still further proposed to provide a novel means for moving the slidab-ly mounted jaw towards the fixed jaw and which is arranged in a manner to permit the clamping action to be quickly effected.

- For further comprehension of this' invention,

and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. l is,a perspective view illustrating a man standing upon a scaffold and using a life saving device constructed in accordance with this invention. p I

Fig. 2 is a perspective view of the assembled life saving device per se.

Fig. 3 is a perspective View of the bracket and associated parts per se. I

Fig. lis an end elevationalview of Fig. 3.

Fig. 5 is a plan View of Fig. 3.

Fig. 6 is a horizontal sectional view taken substantially on the line 6-6 of Fig. 3.

Fig. 7 is a horizontal sectional view taken substantially on the line i -l of Fig.3.

Fig. 8 is a vertical sectional view taken on line 8-8 of Fig. 5.

Fig. 9 is a vertical sectional view taken on line 9-2 of Fig. 5 L

Fig. 10 is an extended elevational view of waist engaging belt per se.

Fig. his a rear elevational vie the the

the

I of a clamp constructed in accordance with a modification of this invention.

Fig. 12 is a plan view of Fig. 11.

Fig. 13 is a vertical sectional view taken on the line i3-|3 of Fig. 11.

Fig. 14 is a horizontal sectional view taken on the line I l-4 of Fig. 11. p

The life saving device, in accordance with this invention, includes a belt Ill for engagement about the waist of a person operating from a suspended scafiold H. The belt I8 is of conventional construction and includes a buckle W. on one end. The buckle l2 has a pivotal tongue l3 selectively engageable with one of a plurality of openings formed in the other end of the belt. Attached to spaced positions along the length of the belt Ill there is provided a pair of leg engaging straps 15 which are arranged to engage the top of the wearers legs immediately adjacent the crotch. The positioning of the belt Hi and straps l5 upon the Waist of a person is clearly illustrated in Fig. lot the drawings.

A clamp I6 is adapted to be attached to the belt Iii and a guy rope ll projected, downwards adjacent the scaffold ll. Theclamp I5 is characterized by a bracket l8 having a pair of forwardly extending eye portions i9. 'Each of the eye pieces is provided with a downwardly ex tending fastening means by which the bracket 88 is attached to the belt 10.

Each of the fasteningmeans is characterized by a flexible cable projected through and having its ends secured to a rigid tube member 2i which acts to encase the cables. Mounted upon each of the cables adjacent the lower end of the tube members 2! there is a clamp 22 having a spring closed jaw 23. These clamps 22 are engaged with complementary rings 24 securely mounted upon the belt ii! at points adjacent the straps l5.

At one end the bracket 18 is integrally formed with a rearwardly extending jaw portion 25. This jaw portion 25is arranged to extend along a side portion of the guy rope ll.

The other end of the bracket l2 slidably supports a complementary jaw member 26 arranged to extend along the other side of the side portion of the guy rope ll which is engaged by theijaw member 25. The adjacent faces of the

jaw members

25 and 26 are formed with verticallyextending semi-circular cut-outs 21 arranged to engage about the guy rope l'l. The surfaces of the cut-outs 21 are provided with a plurality of serrations 28 for roughening these surfaces to more securely grip the guy rope l'l.

The jaw member 26 is substantially U-shaped in formation and has its arms extending around a rearwardly extending lug 29 formed on the bracket I8. Each of the arms of the jaw member 26 is provided with a reduced portion provided with a laterally extending slot 30. A bolt 3! extends through each of the slots 30 and threadedly engages into the bracket I8 forming the slidable support for the jaw member 26.

A means is provided for moving the slidable jaw 25 into and out or operative position with relation to the fixed jaw 25. This means is characterized by a screw 32 threadedly engaged through an opening formed in the lug 29. The

outer end of the screw 32 is provided withan'en larged head 33 securely held in position by means of apin 34. Thehead 33 provides a means by which the screw is adapted to beturn'ed. @h'e inner end of the screw 32 is rotatively attached to the jawmember'ilfi at a position between the side arms thereof. To accomplish this attachment the inner end of the screw is extended i-ntoanopening 35 formed in the jaw member 26. A -pin "36 is projected inwards from oneface -of the jaw member 26 and engages into a complementary circular groove formed on the portion of the screw 32 which is projected into the openingtt. Thus, as the head 33 is turned the screw 32 will rotate relative to thejaw-m'e'mber 28. :As the-screw 32 rotates it will move in one direction :or theother due to its threaded engagement with the lug .29 and correspondingly move the jaw member 26 relative to thej aw mern be r 2'5.

The operation of thisform of the invention is as follows:

A person about to workupona scaffold similar to that shown at H on the drawing, engages the belt about his waist. The straps iware then engaged about the top of -ithellegs. The clamps 22 of the clamp are then engaged with the rings '24 mounted upon'thelbelt tt. The guy rope H is then engaged between the jawmembers :and 26 of the clamp 46. The head 33 i's thenirotated to move the ja-wmember 26 towards the jaw member 25 'and"-clamp .theiguyirope in position between the adjacent faces *of the jaw members. With the life saving device assembled it willbe noted that it is practically impossible tofal-l to the ground in the event "the-person using the same loses his footing on the scaffold, "or .if one of the ropes supporting the scaffoldshould break.

From an inspection 'of Figs. land 2 it will be noted that the features of the construction-resides in the fact that the open edge of thejaw members 25 and 261s directed to'the rear =or im-.

mediately adjacent the wearers body making it easy for the wearer to observe the engagement of the jaw members 25 and 2Bwiththe guy rope.

In the modification of the invention :shown in Figs. 11 and 14 the construction of the'rclampjt is similar to that previously described except for the provision of a slightly diif ere'nt :manner' of supporting the jaw member '26 which is engageable with the fixed jaw member 25.

'In this form of the invention the"jaw"meinber 2t is U-shaped 'in formation and engages about a fiXedlug 29 "formed on the bra'cket iii. A ihollow casing (it of sheet metal "construction is mounted upon the bracket 18 and acts to slidably support the jaw meinbertt. The casing i!) is securelymounted in p i n upon the bracket 18 by means of screws M. In this form :or the invention only one extending eye portion "-19" "is shown projecting from the bracket" l8.

In other respects this' form of the invention States Letters Patent is:

l. A life saving device for persons working in "an elevatedpo's'ition near a guy rope having a satetybelt for engagement on a persons body and connected with a clamp for engaging said guy rop'epsaid clamp, comprising a bracket having-a rearwardly extending integral jaw portion for extending along a side portion of said guy rope, a jaw member complementary to said :jaw portion for extending' along the other side 'otsaid side portion of "said :rope, a ring projecting rearwards from said bracket, 'ssaid jaw smemb'er being substantially -U'-Ishaped and having. its

- arms ienga'g'ingesaid Jugto; limitmovement of .said

jaw amem-ber towards and away from said Pjaw portion, a manually turnable screw threadedly engaging through said lug and. rotatively :connected with said :jawimember'to "movesa'idjaw member relative "to sai'd'ijawr portion, and means for holding :said ,j'aw member in position- 'on' said bracket and :leaving "the adjacent portion 'ofsaid jawportion a ndejaw member free to' be :watched as said jaw member is moved towardse'sa'rid ciaw portion to insure proper g'gripp'ingof the guy rope which is passing between said adjacent portions, comprising screws passing freely'th-rough elongated slots'f-ormed' in the arms of said jaw member and threadedly engaging complementary openings formed in said bracket.

2. .A' life saving device for persons working in an elevated {position near a guy 'ropehaving a safety belt for engagement-on a-person s body and connected with a clamp for engaging said guy rope, said clamp, comprising a bracket having a rearwardly extending-integral jaw pontion for extending along a side .portion of said-guy rope, .a. jaw member-complementary to saidjaw porti-on'forextending -along the other-side .of said side porticnof said .guy rope, .a lug projecting rearwards from said bracket, said. jaw member being substantially U-shape'd andliaving its arms engaging said lug "to limit-movement of saidjaw 'member towards and away from said jaw portion,

a manually turnable screw threadedly engaging through "said lug and rotatively connectedwi'th said jaw member to move said jaw memb'enrelative to said jaw'porti'onja'nd means for"hdlding said jaw member in position'onsaid 'bracketand leaving the adjacentportion "of" said -jawfpoition and jaw member free to be waltehed-assaid'jaw member is moved towards *said jaw-=-portion to insure proper grippingo'fthe 'guyrope which is "passing between said adjacent-"portions, eomprising screws' passing'freel-y through elongated "slots formed 'in' the armsofsaidjawmember and threadedly engaging complementary =openings formed in said bracket, said'arms' aft the-pdints where said screws pass thereth'roughflbeingcut awa'y reducing the thickness-o'f-said arms'pern'iitting screws of shorter length to be usedfor mounting said jawmemberposition.

3. A life saving devioe' i'o'r 'e'rs'ons fworkingin an elevated position ?near' 'a gu'y dope having a,

safety belt for engagement on a persons body and connected with a clamp for engaging said guy rope, said clamp, comprising a bracket having a rearwardly extending integral jaw portion for extending along a side portion of said guy rope, a jaw member complementary to said jaw portion for extending along the other side of said side portion of said guy rope, a lug projecting rearwards from said bracket, said jaw member being substantially U-shaped and having its arms engaging said lug to limit movement of said jaw member towards and away from said jaw portion, a manually turnable screw threadedly engaging through said lug and rotatively connected with said jaw member to move said jaw member relative to said jaw portion, and means for holding said jaw member in position on said bracket and leaving the adjacent portion of said jaw portion and jaw member free to be watched as said jaw member is moved towards said jaw portion to insure proper gripping of the guy rope which is passing between said adjacent portions, comprising a metallic casting mounted on said bracket and in which said jaw member is slidably engaged and screws engaging through portions of said casting and threadedly engaging complementary openings formed in said bracket at the sides of said jaw member,

4. A life saving device for persons working in an elevated position near a guy rope having a safety'belt for engagement on a persons body and connected with a clamp for engaging said guy rope, said clamp, comprising a bracket having a rearwardly extending integral jaw portion for extending along a side portion of said guy rope, a jaw member complementary to saidjaw portion for extending along the other side of said side portion of said guy rope, a lug projecting rearwards from said bracket, said jaw member being substantially U-shaped and having its arms engaging said lug to limit movement of said jaw member towards and away from said jaw portion, a manually turnable screw threadedly engaging through said lug and rotatively connected with said jaw member to move said jaw member relative to said jaw portion, and means for holding said jaw member in position on said bracket and leaving the adjacent portion of said jaw portion and jaw member free to be watched as said jaw member i moved towards said jaw portion to insure proper gripping of the guy rope which is passing between said adjacent portions, said jaw member being formed with an opening into which the inner end of said screw extends, a pin pror' jected inwards from one face of said jaw member and engaging a complementary circular groove formed in the inner end of said screw forming the rotative connection between said screw and jaw member.

JACK FRANKEL.