US1522292A - Attachment for ladders - Google Patents

Attachment for ladders Download PDF

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Publication number
US1522292A
US1522292A US720706A US72070624A US1522292A US 1522292 A US1522292 A US 1522292A US 720706 A US720706 A US 720706A US 72070624 A US72070624 A US 72070624A US 1522292 A US1522292 A US 1522292A
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United States
Prior art keywords
attachment
ladder
sleeves
ladders
worm
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Expired - Lifetime
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US720706A
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Enssle William
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Enssle William
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Priority to US720706A priority Critical patent/US1522292A/en
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    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/48Ladder heads; Supports for heads of ladders for resting against objects
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/34Ladders attached to structures, such as windows, cornices, poles, or the like
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/44Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44265Gripping member face integral with or rigidly affixed to screw-driving portion

Description

Eau. 5, 1925. EZQ w. ENssLE ATTACHMENT EDR LADDERS I Filed June 17, 1924 2 sheets-sheet 1 Jan. 6, 1925. l 4522,292

W. ENSSLE ATTACHMENT FOR LADDERS l Filed June 17, 1924 2 Sheets-Sheet 2 M//mm 55s/e Patented Jan. 6, 1925.

f 'UN- ITEDzsTATES-Y ATTACHMENT ron Lannnns.

'Alipnc'aaoa fired Julie 17,

, To all whom t may concern."

Be it'knownl'that I, WiLLiaM ENssnn, a

citizen of the Republic of Germany, residing lladder with which `the upper'end thereof may be securely anchored to prevent its sl1d at Rochester, iny the county ofQMon'roe `and State ofNew Yorkfhave invented certain new'v anduse'ful Improvements in Attach# ments for Ladders, vof which ther following isa-specification.

The object of this invention is to provide a new and improved attachment for a ing` or sliiftin after the `ladder has been located in the' esired position. This and other objects of described in the specification and pointed out in the claims at the end thereof.

In the accompanying drawings: Figure 1 is a top plan view of the attachment as it appears when mounted on the upper'end of a'ladder. Figure 2 is a side elevationcf the 'attachment and the4 upper end of the ladderV to which it is'attached.

Figure 8 is a top plan view of a modified forni of the attachment.

In the several figures of the drawings like reference numerals indicate like parts.

After a. ladder is properly located there 'is always the danger of `having thel upper end thereof slide'to one sidev or the other unless some means are provided that anchors .matter of this invention .is s0 constructed that it can be readily adjusted at any time either from the ground or from the ladder whilev older devices of this nature have to be adjusted before the ladder is put in place.

As illustrated in the iigurcs the attach ment comprises a pair of short rectangular sleeves 1 and 2 that are adapted to slide over the upper ends of the ladder rails and are clamped thereto b means of the clamping screws 3, 3. Eac of the sleeves 1 and 2 has a rearwardly extending bracket 4 integral therewith. On these brackets are provided the horizontal bearings 5, 5 in which the shafts 6 and 7 respectivelyare mounted to rotate. Each of these shafts carries at its outer end a worm 8. These worms mesh withf the worm wheels 9. 9 carried on the inner ends of 'the anchoring his invention will be yfully illustrated in the drawings,l

arms 1'0, 10 and arepivoted on Athe pivot` pins 11, 11 mounted in the rearwardlyextending brackets of the 'sleeves 1 'and2.' The pivot `pins comprise shouldered machine PerENT om@ `screws that are threaded"intothe.bracketsv `wheels to-f'rotate thereon.

'A collar llA'is keyed to eachof the shafts 6 and 7 on the Voutside of the horizontal 'bearing's'and keeps the sliafts'trom sliding therein. The inner ends ofthe shafts extend into the hollow shaft'j12 and are adjustably keyed therein by means of the'set screws 13 and 14; The 'hollow' shaft l2 carries the double grooved pulle7` 15 in the middle thereof over which the ropes `or cables' 161 and 17 are adaptedto pass. The ropes are wound around the pulley in stheir respective grooves so that by 1 pulling on oneof the ropes the pulley is rotatedin one direction and by vpulling the other rope the pulley is rotated in the opposite direction; The worms 8, 8 can thus be rotatedl to turn the arms 10, 10 either in orout by rotating the pulley as rabove described." Inthis way the arms ma anchort e upper end ofthe ladderamd hold it against sliding on 'the object against which it is placed.' If'this should be apole' or narrow object the arms .are place as to partly embrace it, otherwise thearms arepositioned to `allow the pointedy ends be adjusted so as to properly thereof to dig into vthe object against which `it'is placed. In cases where itis 4objec-"Qo tionable to have the points on the ends dig" ,intor the" object 'against' which the ladder is i placed, pads'made `of rubber or other suitable material may be slip ed over the points so that they will rest against the object and prevent the upper end of the ladder from sliding thru the friction'al contact between these pads and the obj ect that they engage.'

In Figure 3 is illustrated a modification of the attachment which differs from the attachment illustrated in Figures 1 and 2 in that each ot' the anchoring armsis made adjustable individually. For this purpose the sleeves 20 and 21 that are separately clamped to the upper ends of t-he ladder by means et the clamping screws 22 are provided with sidewardly projecting brackets that carry the horizontal bearings 23, 23 and the pivot pins 24e, 24. A shaft 25 carrying a worm 26^ and a 'worm wheel 27 is mounted in each of the horizontal bearingsand on the pivot pins, respectively. Each shaft 25 has Lsaaeea a 'double' ooved pulley 26 keyed thereony 7 over Whic tworopes or cables can pass.

The pulleys can thusbe individually rotated in either one or the other direction in order t-o swing the arms controlled by these pulieys in the desired direction' and place them properly against the obj ect on which the upper end of the ladder is to rest, l,

By making the ends-of the shafts 6 and 7 adjustable in and out of the hollow shaft 12 on the attachment illustrated in Figures 1- and 2the attachment may be attached to ladders of different Widths. Thus for a ladder kof small width the shafts 6 and are,

inserted into the hollow shaft the I full len h thereof While fora ladder of greater wi th these shaftsk are moved out ofthe hollow shaft in 'order to bridge the longer distance between the upper. ends of the ladder.

1. In an attachment for ladders, the combination of a pair of sleeves adapted to telescope over the ends of the uprights of of said sleeves, a horizontal bearing formed on each of said' brackets, said bearingsfbeing in line with each other, a, short shaft mounted torrotate in each of said bearings, a hollow shaft telescoping over the ends of saidshort shafts, a pulley carried by said hollow shaft, a-Worm carried by each of said short shafts, a. wormwheel mounted to rotate adjacent to each ofsaid worms andv meshing,therewith,l an arm carriedrbyv each o-f said worm wheels, saidtarms being adapted to lsimultaneously swing in either one or the other direction on the rotation of said pulley. t

8. In an attachment for ladders, the combination of .a pair of sleeves adapted to telescope over the ends of the uprights of a ladder',4 means for clamping said sleeves to the ladder', a bracket projecting from each of said sleeves, a horizontal bearing formed on each of said brackets, said bearings being in linetwith each other, a short shaft mounted toprotateinA each of said bearings, a hollow shaft telescoping over the ends of said short shafts, a." pulley carried by said hollow shaft, a worm carried by each-of said short shafts,`a worm wheel mounted to rotate .adjacent toeach of lsaid worms and meshing therewith, an arm carried by each of said worm. wheels, said arms being adapted. to simultaneously swing in either one or the other direction onthe rotation of said pulley, said short shafts ybeing adjustable in and out of said hollow shaft to increase or decrease the distance between said pair of sleeves corresponding to the distance between theuprights of the ladder to which said sleeves are to be clamped. i

4. In an attachment for ladders, tl1e combination of a pair of sleeves adapted to telescope over the endsof the up-rights ,of a ladder, a bracket formed on each of said sleeves, a Worm mounted to rotate on said bracket, a pivot pin carried on said bracket, a worm wheel mounted to rotate on said pivot pin and adapted to mesh with said worm, an arm projecting from said worm wheel, and means for rotating said worm in either one or the other direction, said arms being curved inwardly and adapted tor embrace a In testimony whereof -I axl my signature l/VILLIAM ENSSLE

US720706A 1924-06-17 1924-06-17 Attachment for ladders Expired - Lifetime US1522292A (en)

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US720706A US1522292A (en) 1924-06-17 1924-06-17 Attachment for ladders

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US720706A US1522292A (en) 1924-06-17 1924-06-17 Attachment for ladders

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US1522292A true US1522292A (en) 1925-01-06

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432781A (en) * 1946-02-27 1947-12-16 Cecil E Mann Ladder attachment
US2448350A (en) * 1945-11-24 1948-08-31 Cecil L Brown Ladder bracket
US2605950A (en) * 1949-08-12 1952-08-05 Edward H Colvin Ladder jack
US2778556A (en) * 1953-09-18 1957-01-22 Willard P Johnson Ladder attachment for clamping a ladder to a pole or limb
US2856112A (en) * 1952-12-29 1958-10-14 Broderick Owen Ladder brackets
US4643274A (en) * 1986-07-11 1987-02-17 Victor Tataseo Ladder stand-off device with safety harness
US4995476A (en) * 1990-05-21 1991-02-26 Buck Robert J Safety attachments for ladders
FR2694783A1 (en) * 1992-08-14 1994-02-18 Quille Entreprise Safety device for stopping ladders overturning - comprises support sliding on uprights with retractable lock between rungs operated by cord fixed to crosspiece round pulley on top rung
FR2740507A1 (en) * 1995-10-31 1997-04-30 Dupuy Didier Safety device for ladder and scale equipped with such a device
GB2334065A (en) * 1998-02-03 1999-08-11 James Barrie Ward A climbing aid comprising a step and releasable securing or gripping means
FR2791731A1 (en) * 1999-03-30 2000-10-06 Bernard Jean Michel Duthu Safety device for fitting to back of high ladder comprises two arms which can be moved towards or away from each other across width of ladder on rod with thread which reverses half way along and which cooperates with bearing on each arm
US6244382B1 (en) * 2000-04-13 2001-06-12 Leopold Labonte Attachment for stabilizing an extension ladder
EP1388640A1 (en) * 2002-08-09 2004-02-11 Innovations for Trade and Technology Safety device
US8011476B1 (en) * 2009-03-06 2011-09-06 Alcon C Jerry Ladder attachment
US20140102827A1 (en) * 2012-10-09 2014-04-17 Wing Enterprises, Incorporated Ladder securing apparatuses, ladders incorporating same and related methods
US9593531B2 (en) 2013-09-18 2017-03-14 Wing Enterprises, Inc. Ladder securing apparatus, ladders incorporating same and related methods
US20180228143A1 (en) * 2015-11-23 2018-08-16 Ronald Lee Berkbuegler Ladder Stand and Tree Securement Mechanism Therefor
US10415311B2 (en) * 2017-11-13 2019-09-17 Werner Co. Pole grab and ladder including the same

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448350A (en) * 1945-11-24 1948-08-31 Cecil L Brown Ladder bracket
US2432781A (en) * 1946-02-27 1947-12-16 Cecil E Mann Ladder attachment
US2605950A (en) * 1949-08-12 1952-08-05 Edward H Colvin Ladder jack
US2856112A (en) * 1952-12-29 1958-10-14 Broderick Owen Ladder brackets
US2778556A (en) * 1953-09-18 1957-01-22 Willard P Johnson Ladder attachment for clamping a ladder to a pole or limb
US4643274A (en) * 1986-07-11 1987-02-17 Victor Tataseo Ladder stand-off device with safety harness
US4995476A (en) * 1990-05-21 1991-02-26 Buck Robert J Safety attachments for ladders
GB2244508A (en) * 1990-05-21 1991-12-04 Robert James Buck A safety attachment for securing the top of a ladder to a pole
FR2694783A1 (en) * 1992-08-14 1994-02-18 Quille Entreprise Safety device for stopping ladders overturning - comprises support sliding on uprights with retractable lock between rungs operated by cord fixed to crosspiece round pulley on top rung
FR2740507A1 (en) * 1995-10-31 1997-04-30 Dupuy Didier Safety device for ladder and scale equipped with such a device
EP0771931A1 (en) * 1995-10-31 1997-05-07 Didier Dupuy Safety device for ladder and ladder incorporating the same
GB2334065A (en) * 1998-02-03 1999-08-11 James Barrie Ward A climbing aid comprising a step and releasable securing or gripping means
FR2791731A1 (en) * 1999-03-30 2000-10-06 Bernard Jean Michel Duthu Safety device for fitting to back of high ladder comprises two arms which can be moved towards or away from each other across width of ladder on rod with thread which reverses half way along and which cooperates with bearing on each arm
US6244382B1 (en) * 2000-04-13 2001-06-12 Leopold Labonte Attachment for stabilizing an extension ladder
EP1388640A1 (en) * 2002-08-09 2004-02-11 Innovations for Trade and Technology Safety device
US8011476B1 (en) * 2009-03-06 2011-09-06 Alcon C Jerry Ladder attachment
US20140102827A1 (en) * 2012-10-09 2014-04-17 Wing Enterprises, Incorporated Ladder securing apparatuses, ladders incorporating same and related methods
US9404306B2 (en) * 2012-10-09 2016-08-02 Wing Enterprises, Inc. Ladder securing apparatuses, ladders incorporating same and related methods
US10760338B2 (en) 2012-10-09 2020-09-01 Wing Enterprises, Incorporated Ladder securing apparatuses, ladders incorporating same and related methods
US9593531B2 (en) 2013-09-18 2017-03-14 Wing Enterprises, Inc. Ladder securing apparatus, ladders incorporating same and related methods
US20180228143A1 (en) * 2015-11-23 2018-08-16 Ronald Lee Berkbuegler Ladder Stand and Tree Securement Mechanism Therefor
US10415311B2 (en) * 2017-11-13 2019-09-17 Werner Co. Pole grab and ladder including the same

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