[Nhcoll-l] Museum platform ladders

Thu Mar 14 10:51:02 EDT 2024

We have used rolling steps with handrails (as John describes) for decades. The presence of a handrail is important, as our university has strict regulations and training requirements governing ladders, but these steps are exempt. The brand we use most is Cotterman: https://www.cotterman.com/
Home - Cotterman<https://www.cotterman.com/>
Quality ladders made in the USA since 1925 with locations in Michigan, Georgia, Texas and California waiting to serve you.
www.cotterman.com

With time, the springs get tired and the rubber feet wear down, but both are replaceable and spares are sold by the makers and, among others, Grainger: www.grainger.com<http://www.grainger.com/>

Paul Callomon
Collection Manager, Malacology and General Invertebrates

________________________________

Academy of Natural Sciences of Drexel University, Philadelphia
callomon at ansp.org<mailto:callomon at ansp.org> Tel 215-405-5096 - Fax 215-299-1170

________________________________
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> on behalf of Michael Quigley <mquigley at bowdoin.edu>
Sent: Thursday, March 14, 2024 10:44 AM
To: John E Simmons <simmons.johne at gmail.com>; Haff, Tonya (NCMI, Crace) <Tonya.Haff at csiro.au>
Cc: nhcoll-l at mailman.yale.edu <nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] Museum platform ladders

External.

We used one of these for third tier archaeology cabinets at AMNH.

https://www.crown.com/en-us/forklifts/man-up-order-pickers/wav-wave-work-assist-vehicle.html

It could be a little bit jerky if you weren’t careful, but it was a big improvement to carrying or handing trays and objects up and down the platform ladder.   Of course, you need to make sure you have turning space at the end of the aisle.  I don’t know whether they’re still using it there.  Looks like there are plenty of dealers in Australia.

Mike

Mike Quigley (he/him)

Assistant Curator

Peary-MacMillan Arctic Museum

Bowdoin College

9500 College Station

Brunswick, ME 04011

United States

207-725-3305

mquigley at bowdoin.edu<mailto:mquigley at bowdoin.edu>

bowdoin.edu/arctic-museum<https://www.bowdoin.edu/arctic-museum/>

From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> on behalf of John E Simmons <simmons.johne at gmail.com>
Date: Thursday, March 14, 2024 at 10:08 AM
To: Haff, Tonya (NCMI, Crace) <Tonya.Haff at csiro.au>
Cc: nhcoll-l at mailman.yale.edu <nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] Museum platform ladders

Tonya,

When the fluid preserved specimen facility at the University of Kansas was built, we were required (by the university safety office) to purchase safety ladders to access the upper shelves. Although we thought these would be a problem, they actually worked very well and are still in use more than 25 years later.

The style we purchased are similar these--rolling ladders, with the wheels on springs, and a platform and railing:

https://www.uline.com/Product/Detail/H-3132-24/Ladders/7-Step-Safety-Angle-Rolling-Ladder-Assembled-with-24-Top-Step?pricode=WA9521&gadtype=pla&id=H-3132-24&gad_source=1&gclid=Cj0KCQjwwMqvBhCtARIsAIXsZparSypH65kAU7w_vJjYfk1Ro-0LTxtfU-tfUQQYnbnynPmuOpXU-pUaAnCGEALw_wcB

As Dirk mentioned, the most important thing is to match the ladder to the width of the aisles and the width of the area where the ladders are to be turned around. Even the narrow 25 inch wide ladders (such as are in use at KU) cannot be turned around within the aisle, but this is not a problem--just as with compactors, you quickly adjust your work habits to accommodate moving the ladders and opening and closing aisles. The ladders need a fairly wide space to be turned around, so make sure the ladders you purchase will fit your space. We cut a shape of the base of a ladder out of cardboard and used that to make sure the ladders could be easily wheeled about and turned around in your space.

Another important factor is to adjust the springs so that the weight of the lightest person using the ladders will cause them to settle on the floor. If they are adjusted for heavier people only, the ladders can slide.

We also found that having the railing around the platform is very useful for moving boxes or, in your case, heavy trays.

If you have any questions about using safety ladders in your collection space, you might want to check with Andy Bentley at the University of Kansas, who has now used the ladders longer than I did while there.

--John

John E. Simmons
Writer and Museum Consultant

Museologica
and
Investigador Asociado, Departamento de Ornitologia
Museo de Historia Natural, Universidad Nacional Mayor de San Marcos, Lima

On Wed, Mar 13, 2024 at 8:27 PM Haff, Tonya (NCMI, Crace) <Tonya.Haff at csiro.au<mailto:Tonya.Haff at csiro.au>> wrote:

Hello again everyone,

I am wondering if any of you have ladder recommendations that you would be willing to share. We are moving to new taller cabinetry for our study skins. The trays are also quite heavy, as they are large and made of powder coat steel. I think I would like some ladders that have a moveable platform on them, in order to be able to retrieve trays from height and then lower them down mechanically. Ideally, they would also be manoeuvrable so that we could easily get them down aisles and around corners in very full collection halls. Any thoughts or recommendations on something like this, or alternatives I should look into, would be greatly appreciated!

Cheers,

Tonya

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