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Double Rifles, Single Shots & Combinations >> Double Rifles

400NitroExpress
.400 member

Reged: 26/11/03
Posts: 1154
Loc: Lone Star State

Re: Screw grip and PHV1
20/08/06 05:05 AM

Hammerless Jones underlever DRs are fairly common. Purdey built hammerless Jones underlever DRs as snap actions at least as late as WWI. Blixen used one in .500/.465 for a time.

In double gun nomenclature, a "screw grip" is a fastener that operates on the interrupted thread principle and is activated by a lever. Sorta like a bayonet mount camera lens, a partial turn of the lever fastens, and a partial turn in the opposite direction unfastens - hence the term "screw grip". It was commonly used as a primary bolting system, a fore-end attachment system, and a third fastener system. The Jones UL Screw Grip Action patent of 1859 uses a screw grip to engage the underlugs. The fore-end fastener you referred to is the Screw Grip Fore-end Fastener. This type was patented by a workman of Wilkinson's (I seem to remember his name as Harvey) in 1866 and was, thus, the property of Wilkinson Sword Co. The T. W. Webley & T. Brain Screw Grip Top Fastener Patent of 1882 is a third fastener on a dolls head extension, and was obviously a direct crib on the Wilkinson patent.

Most of the Webley built screw grip double rifles also use the screw grip fore-end fastener.
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Subject	Posted by	Posted on
Screw grip and PHV1	raccoon29	09/11/05 04:12 PM
Re: Screw grip and PHV1	400NitroExpress	10/11/05 01:01 AM
Re: Screw grip and PHV1	500Nitro	10/11/05 03:58 AM
Re: Screw grip and PHV1	400NitroExpress	10/11/05 05:09 AM
Re: Screw grip and PHV1	500Nitro	10/11/05 05:35 AM
Re: Screw grip and PHV1	4seventy	04/02/06 01:04 PM
Re: Screw grip and PHV1	500Nitro	04/02/06 11:10 PM
Re: Screw grip and PHV1	400NitroExpress	19/08/06 06:48 AM
Re: Screw grip and PHV1	500Nitro	19/08/06 08:05 AM
Re: Screw grip and PHV1	bwana600nitro	20/08/06 04:05 AM
Re: Screw grip and PHV1	CptCurl	20/08/06 05:13 AM
Re: Screw grip and PHV1	bwana600nitro	20/08/06 12:39 PM
Re: Screw grip and PHV1	500Nitro	20/08/06 12:56 PM
Re: Screw grip and PHV1	CptCurl	20/08/06 09:30 PM
Re: Screw grip and PHV1	500grains	21/08/06 07:32 AM
Re: Screw grip and PHV1	400NitroExpress	21/08/06 08:26 AM
Re: Screw grip and PHV1	500grains	22/08/06 09:19 AM
Re: Screw grip and PHV1	400NitroExpress	22/08/06 10:44 AM
Re: Screw grip and PHV1	bwana600nitro	22/08/06 10:25 AM
Re: Screw grip and PHV1	bulldog563	22/08/06 08:27 AM
Re: Screw grip and PHV1	500Nitro	20/08/06 10:33 PM
Re: Screw grip and PHV1	CptCurl	20/08/06 11:49 PM
Re: Screw grip and PHV1	500Nitro	20/08/06 11:59 PM
Re: Screw grip and PHV1	Chasseur	21/08/06 04:30 AM
Re: Screw grip and PHV1	500Nitro	21/08/06 06:50 AM
Re: Screw grip and PHV1	400NitroExpress	20/08/06 05:05 AM
Re: Screw grip and PHV1	4seventy	07/12/06 12:30 PM
Re: Screw grip and PHV1	400NitroExpress	07/12/06 04:03 PM
Re: Screw grip and PHV1	4seventy	07/12/06 05:52 PM
Re: Screw grip and PHV1	400NitroExpress	07/12/06 06:49 PM
Re: Screw grip and PHV1	4seventy	07/12/06 07:13 PM
Re: Screw grip and PHV1	CptCurl	08/12/06 10:17 AM
Re: Screw grip and PHV1	4seventy	08/12/06 11:33 AM
Re: Screw grip and PHV1	bulldog563	07/12/06 01:53 AM
Re: Screw grip and PHV1	CptCurl	07/12/06 02:48 AM
Re: Screw grip and PHV1	Raff	20/08/06 04:34 AM
Re: Screw grip and PHV1	500Nitro	09/11/05 04:50 PM
Re: Screw grip and PHV1	mickey	09/11/05 05:28 PM
Re: Screw grip and PHV1	500Nitro	09/11/05 06:01 PM
Re: Screw grip and PHV1	500Nitro	09/11/05 08:32 PM
Re: Screw grip and PHV1	Marrakai	09/11/05 09:41 PM
Re: Screw grip and PHV1	BigFiveJack	26/05/07 03:45 PM
Re: Screw grip and PHV1	hoppdoc	26/05/07 10:08 PM

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