Per philo:

"snow-pusher thingies"

Mea Culpa.... But I didn't think the term-of-art was "Snow Pusher"...
hence the suffix... but it turns out that's it.

Like this, only about a hundred years old:
http://www.northerntool.com/shop/tools/product_200617794_200617794?cm_mmc=Google-pla-_-Snow%20%2B%20Ice%20Removal-_-Shovels%20%2B%20Scrapers-_-42560&ci_src=17588969&ci_sku=42560&ci_src=17588969 &ci_sku=42560&gclid=Cj0KEQiA6JemBRC5tYLRwYGcwosBEi QANA3IB1wkAvs0dEYyRhjmnvfFw6mm42WPQQajbwGq6MVqTioa AtAW8P8HAQ
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Pete Cresswell