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Knives with Patents

Posted: Sat Nov 22, 2008 12:56 am
by galvanic1882
This might have been a topic before but I just got a knife in that has a patent that I have never seen and I can't pull it up in the google patent search. It is marked on the front tang HENRY SEARS & SON. On the back is Patented June 28 1870. It is 4 3/8" closed and the blade is beefy and sabor ground on both sides. The back side has filing, I am calling it that but check out the pics and you will see what I mean. I wonder what it was made to be used for? If anyone knows please let me know.

I have a few different knives with patents and will be listing them also. I thought this might be a fun topic.

So show us yours.

I know David, it's not etched, mint nor does it have salesman's ink but it is cool.

Re: Knives with Patents

Posted: Sat Nov 22, 2008 10:08 am
by zorrothegreyblade
I do like that, a propper no nonsense working knife. I reckon the back of the blade could be for striking with a flint to make a fire? A very nice vintage piece! ::tu::

Here is my contribution to the thread,

Image

Tang stamped PRO.PAT.18230/44 SHEFFIELD , which I believe is a provisional patent number for the year 1944. The chequered grips are cast aluminium and very similar to the Royal Navy handles on the standard issue seamans knife of that time, and the British army were looking to replace the bexoid handled knife with something more durable for the far east theatre, which they did in 1945 with the all stainless steel "BURMA" model. So it could be that this was a contender for that job and didn't make the grade? Then again, given my track record when it comes to guessing, probably not! :mrgreen:

Re: Knives with Patents

Posted: Sat Nov 22, 2008 4:04 pm
by orvet
Great old knife Mike! ::drool:: ::drool:: I like it!
Do you have a theory as to the use of the file cut into the back of the blade?
Given the date, Zorro's idea makes as much sense as anything I can come up with.

Zorro, nice piece of history! ::tu::

Dale

Re: Knives with Patents

Posted: Sun Nov 23, 2008 1:19 pm
by edgy46
It could be a a stripping comb to get the burrs out of a hunting dogs coat. I have seen a remington with a blade like this

Re: Knives with Patents

Posted: Sun Nov 23, 2008 1:27 pm
by galvanic1882
I have no idea myself but can anyone find the patent? I have been trying with no luck at this point. Here is another made by Edward Sears.

Re: Knives with Patents

Posted: Sun Nov 23, 2008 1:39 pm
by edgy46
It is listed as a dog grooming blade remington patern R4733 in Stewart&Ritchie Remington knives past and present pg. 162

Re: Knives with Patents

Posted: Sun Nov 23, 2008 1:41 pm
by galvanic1882
Thanks Bill, I don't have that book but have another on Remington's that will check.

Re: Knives with Patents

Posted: Sun Nov 23, 2008 2:52 pm
by Sauconian
The Sears blasting cap knife is a no-brainer, but I haven't found the patent on the first knife either.

I only looked for about 20 minutes, so maybe I'll try again later.

I does look like a grooming blade, but very worn. The notches between the serations would have to be deeper to work, and are straight not slanted on the newer one I have.

Re: Knives with Patents

Posted: Sun Nov 23, 2008 9:35 pm
by ea42
Mike, I wonder if that's some kind of horticulture knife. The slanted serrations would help with stem cutting. I've seen a number of modern hedge clippers with the same types of serrations on the blades. No idea about the patent though.

Eric

Re: Knives with Patents

Posted: Sun Nov 23, 2008 9:53 pm
by tmwsiy
Image

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Re: Knives with Patents

Posted: Tue Nov 25, 2008 12:24 am
by galvanic1882
Funny how things work out. I bought the knife I started the topic with a week ago and had not seen another in the years of collecting. Well check out ebay item 370118768950 and there is the same knife in better shape with a different markers name. Man I wish I could find a copy of the patent!!!

Re: Knives with Patents

Posted: Tue Nov 25, 2008 12:30 am
by galvanic1882
Found the patent, check the link below


http://www.google.com/patents?id=bupWAA ... es&cad=0_1

Re: Knives with Patents

Posted: Tue Nov 25, 2008 2:07 am
by Sauconian
I'd say Eric almost nailed that one. The sheafs were tied with a few stalks of the wheat back before combines, so that knife would certainly be for cutting horticultural products !

'Ol Eric's pretty sharp himself. :lol:

Fran

Re: Knives with Patents

Posted: Tue Nov 25, 2008 6:21 am
by orvet
Such cutting humor Fran! ::shrug::
That's just not knife! :mrgreen:

Dale
:lol: :lol: :lol:

Re: Knives with Patents

Posted: Tue Nov 25, 2008 2:41 pm
by Sauconian
orvet wrote:Such cutting humor Fran! ::shrug::
That's just not knife! :mrgreen:

Dale
:lol: :lol: :lol:
Oh Crap, Dale. ::doh:: ::dang:: ::dang:: I wuz expecting that from Philco, not you.




:lol: :lol: :lol:
Fran

Re: Knives with Patents

Posted: Tue Nov 25, 2008 6:02 pm
by orvet
This knife doesn’t have the patent number; it was obviously made before a patent was issued. But I thought it might fit in this thread anyway.

While this knife has been used, typical of an older Schrade, it still has lots of life left in it.
Does anyone know the guidelines of using the Pat. Pend. Stamp?
I have heard that it could only be used of a short period of time. It would date this knife pretty closely if we could find if/when a patent was issued on the 15OT.

Thanks for your help,
Dale

Re: Knives with Patents

Posted: Wed Nov 26, 2008 3:37 pm
by ea42
Dale, patent was issued Nov. 9 1965 on the 15OT, here's a link:

http://www.collectors-of-schrades-r.us/ ... 202780.pdf

Eric

Re: Knives with Patents

Posted: Wed Nov 26, 2008 4:30 pm
by orvet
Thanks Eric!
Now what does the Pat Pend mean on the tang of my knife & how can it be used to date the knife?
Does that mean it was made after they filed for the patient & before it was granted, approx. late '64 or early '65?

Thanks again,
Dale

Re: Knives with Patents

Posted: Fri Dec 19, 2008 7:53 pm
by Another Knife Collector
Knives with patents are one of my favorite things to find. Here's a small display of mine with four German knives whose design patented in 1880. :D

Re: Knives with Patents

Posted: Thu Dec 25, 2008 2:11 pm
by galvanic1882
Heres another one that I just got in the mail. It is a spring loaded single blade. I will email it to LT and see if he has info on it. When you slide the top of the case open all the way the blade springs out. Pretty neat little knife 3 1/8" closed. Inside the case is the word PATENT and nothing else.

If anyone elase has seen or has info on it I would appreciate it.

Merry Christmas to all.

Mike

Re: Knives with Patents

Posted: Fri Dec 26, 2008 1:48 pm
by orvet
Nice one Mike. ::tu::
It will be interesting to find out more about it.

Dale

Re: Knives with Patents

Posted: Fri Dec 26, 2008 1:57 pm
by philco
Dale,
What is the handle material on the sharpfinger you showed above? Is it the usual delrin or something else? (Pic looks like something different to me)

Phil

Re: Knives with Patents

Posted: Fri Dec 26, 2008 2:15 pm
by orvet
Phil,
That is a 15OT Deerslayer, the big brother of the 152OT Sharpfinger.
The handle is Delrin, but someone has ground the handle down for some reason, perhaps to better fit a non-standard sheath. I am not sure why, but the handle has been ground down. I think that is what makes the Delrin look different, along with the age of the Delrin & the fact that it has not received the best of care at some point in it's life.

Dale

Re: Knives with Patents

Posted: Fri Dec 26, 2008 3:02 pm
by galvanic1882
I emailed pictures and a description to LT and this was his response.

I have seen variations on your knife usually european . Nice variation of oddball mouse trap mech. There are several variations. When you see PATENT like that it is usually Euro. Nice find I love oddball stuff. LT


I will try and find out who held the patent.

Re: Knives with Patents

Posted: Fri Dec 26, 2008 3:08 pm
by zorrothegreyblade
Another Knife Collector wrote:Knives with patents are one of my favorite things to find. Here's a small display of mine with four German knives whose design patented in 1880. :D
Reminded me of this one, only 1 3/4 in. closed. :)

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Merry christmas guys! :D