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Publication numberUS2451521 A
Publication typeGrant
Publication dateOct 19, 1948
Filing dateJan 9, 1945
Priority dateJan 9, 1945
Publication numberUS 2451521 A, US 2451521A, US-A-2451521, US2451521 A, US2451521A
InventorsUglum Alfred H
Original AssigneeUglum Alfred H
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Magazine loader
US 2451521 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Oct. 19, 1948. A. H. UGLUM MAGAZ INE!v LOADER Filed Jan. 9, 1945 ALFRED H UELUM,

maffia/MM www Patented Oct. 19, `-194:8 v

EFICE MAGAZINE LOADER Alfred H. Uglum, Waterville, Iowa Application January 9, 1945, Serial No. 572,044

l Claim. (Cl. 86-47) (Granted under the act of- March 3, 1883, as amended April 30, 1928; 370 0. G. 757) i 2 The invention described herein may be manu- Figure l, is constrained into movement downfactured and used by or for the Government for ward by means of gravity and securely though governmental purposes Without the payment t iOOSely held in the Channel i5. The laCeWay IU me of any royalty thereon. iS made any Convenient length to accommodate This invention relates to machines for loading the desired number of cartridges I2 as shown. cartridges into magazines. The raceway I 0 is open at the bottom, permitting A purpose of the invention is to provide a mathe cartridges to drop by gravity onto a guiding chine by means of which magazines for sub-maramp 25 formed by plates 26 and 28 as Shown in chine guns and the like may be quickly, easily Figuresl and 5. and automatically loaded with ammunition. A vertically reciprocating plunger 30, of rec- Other purposes of the invention will become tangular cross section, is arranged to slide in a apparent from the following description and chamber 32 open at the top and bottom and drawingg formed between the sides 34, 36, 38 and 40. The

Reference is now had to the drawings in which: top 42 of the plunger 30 is arranged to recipro- Figure 1 is a front elevational view of a mal5 cate to a low position at the base of the inclined chine embodying the invention; ramp portion 28 as shown in Figure 1 and Fg- Figure 2 is a cross sectional view taken along ure 2, with all its travel above this point. the line 2-2 of Figure l; A shaft 44 having an external turning crank Figure 3 is a sectional view taken along the line 46 and handle 48 is rotatably arranged in two 3 3 of Figure 1; 2o horizontal bearings 50 and 52 formed in the ver- Figure 4 is a sectional view taken along the tical members 54 and 40, bearing 52 being made line 4 4 of Figure l, and removable as shown for easy insertion of shaft Figure 5 is an enlarged cut-away detail view of 44 therethrough. An internal crank 56 is formed the mechanism and cartridges as they enter the by bending shaft 44 as shown in Figure 2. A magazine. COHDeCtng rod 58 has its upper end pivotally In the use of sub-machine guns like the connected to the lower end of the plunger by Thompson cal. .45 sub-machine gun, it is necesmeans of a pivot pin B0 inserted through a horisary to load the magazine or clip with the car- ZOntal bOI'e passing thlOugh both the connecting tridges. While this may be done by hand for rod 58 and the plunger 30 as shown in Figures loading one clip, it becomes a tedious and some- 30 1 and 2. The lower end of the connecting rod what tiresome task when a great many yclips are 58 has a U-shaped transverse groove B2 to accomto be loaded. One reason is the fact that the modate the crank 56, and a pin 64 thrOugh its cartridges have to be forced into the clip against projecting ends to retain the crank in the the resistance of an internal spring, and the regroove 62. sistance of the spring increases as more and more It is thus apparent that turning the handle cartridges enter the clip. The present invention 48 in a clockwise direction as indicated by the shows a mechanism by which the process of clip aTIOW 6B Will Cause the plunger 30 110 reciprocate loading is greatly facilitated and improved. Vertally.

In Figure 1, a vertically arranged raceway IIJ The column of cartridges I2 in the raceway I0 is adapted to hold a number of cartridges I2 in a 40 forces the lowest cartridge into the POStiOn 68 vertical column as shown. A back plate Ill is Where it rests directly on the top 42 of the formed into a U-shaped channel i5 as also shown Plunge? 30- in Figure 3, just deep enough and wide enough A magazine or clip 10 of the usual type emto receive the rims I6 of the cartridges I2. Face plOyed in the ThOmDSOIl Sub-mhine gurl iS inplates I8 and 2l! fastened against back plate Ill 45 serted, open end downward, into the machine as have extensions 22 and 24 projecting inwardly shown. The frame of the machine is formed as over the front of the channel I5, the extensions shown, with a side wall 'I2 and a back wall I4 having their projecting edges beveled as shown which is formed with a channel as shown in Figin Figure 3 to fit loosely in the rim groove of the ure 3 extending upwards from the line 'I6 of Figcartridges I2, thereby holding the cartridge rims 50 ures 1 and 2, to accommodate the rear longituin the channel I5 as shown. Faceplate 20 has a dinal projection 'I8 of the clip l0. A stud 80 lower extension 2| rounded as shown, to guide formed in the wall 12 serves to hold the top of the cartridges as they fall onto the ramp 25 and the clip 10 in the machine as shown, and to keep them inline. prevent vertical movement thereof. A curved Thus the column of cartridges I2 as seen in 55 depression 82 is formed in wall l2 to permit the upper rim 84 of the clip 10 to enter without interference. The wall 'I2 is also cut away as shown at 86 so the clip may be held with the ngers as it is inserted and withdrawn from the machine. The right hand lower lip B8 of the clip is supported as shown in Figure 5 by the curved portion of the wail v'12.

With the clip 10 in place and the raceway l0 full of cartridges as shown in Figure 1, the handle 48 is turned continuously in a clockwise direction. The plunger 30 forces cartridge 68 upwards into the lower opening of the clip 10, forcing it in againstl the resistance of the projection -90 of the spring follower inside the clip. As the `handle 48 is turned again, the neXtcartridge,

having rolled onto the top of plunger 30, is also forced upwards into the clip, and so on as seen in Figure 5, until the clip is full, 'when it -is removed from the machine by gripping atthe position of the cutout 85 and pullingsidewise.

The top 42 of the plunger 3D may be at. as shown, or may have a-shallow -transverse'groove 92 as'shown `in Figure 5 -to Vpartly receive Vthe rounded side of the cartridge. The-upper portion an open end, including a support for holding a magazine with open end downward, means arranged on said support beneath the open end of said magazine for pressing a cartridge upwardly into the magazine comprising a plunger mounted for vertical reciprocating movement, a rotatable shaft disposed''beneathy the plunger, a crank on said shaft, a connecting rod rotatably connected at its lower end to said crank and pivotally connected at its upper end to said plunger, and means for rotating said shaft, and gravity actuated means carried by said support for delivering cartridges one by one onto said plunger comprising a hopper elevated relative to the said plunger provided with vertical guide grooves for slidably engaging the rims of cartridge cases to maintain the cartridges in alignment one above the other and a passageway .communicating at an angle with said hopper adjacent the bottom of the vertical guide grooves for delivering cartridges one by one from the guide grooves to the top of said plunger.


REFERENCES CITED The following references are of record in `the 'file of th-ispatent:

UNITED STATES PATENTS Number Name Date 771,491 Parkhurst Oct. 4, 1904 2,402,195 Woodberry et al. June18, 1946 lFOREIGN PATENTS Number Country Date 694,582 Germany Aug. 3, 1940

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US771491 *Feb 8, 1896Oct 4, 1904Lee Arms CompanyCartridge-packet.
US2402195 *Dec 29, 1942Jun 18, 1946Hoewischer Frederick WSelective loader for cartridge machines
DE694582C *Aug 21, 1938Aug 3, 1940Rheinmetall Borsig AgFuellvorrichtung fuer Patronenmagazine
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4304062 *Apr 18, 1980Dec 8, 1981Chandler Evans Inc.Loading tool for cartridge magazine
US4538371 *Oct 26, 1982Sep 3, 1985Howard William JMagazine loader and cartridge clip useful therewith
US4570371 *Oct 9, 1984Feb 18, 1986Center Line Industries, Inc.Rapid loader device
US4689909 *Jul 16, 1986Sep 1, 1987Howard William JMagazine charger
US4719715 *Apr 17, 1987Jan 19, 1988Howard William JMagazine charger
US4736667 *Apr 4, 1986Apr 12, 1988Kochevar Rudolph JSpeed-loading device for cartridges
US4739572 *Sep 2, 1986Apr 26, 1988Ram-Line, Inc.Method and apparatus for orienting and loading rim-fire cartridges
US4879829 *Nov 3, 1988Nov 14, 1989Miller Michael KFast cartridge loader for firearm magazines
US4888902 *Jun 2, 1989Dec 26, 1989Knowles Carter LGun magazine loader
US4939862 *Nov 5, 1987Jul 10, 1990Ram-Line, Inc.Method and apparatus for orienting and loading cartridges
US4949495 *Nov 27, 1986Aug 21, 1990Marco MariAutomatic device for the introduction of cartridges in arm magazines
US4970820 *Nov 3, 1989Nov 20, 1990Miller Michael KDevice for rapidly loading rimmed cartridges into large capacity firearm magazines
US5083393 *Apr 11, 1991Jan 28, 1992Smydas Eugene ICartridge clip loading/unloading tool
US7059077Sep 9, 2002Jun 13, 2006Guy TalHeavy duty magazine loader
US8061342Feb 29, 2008Nov 22, 2011Kee Action Sports I LlcPaintball loader
US8402959Mar 19, 2009Mar 26, 2013Kee Action Sports I LlcMagnetic force feed projectile feeder drive mechanism
US8453366 *Sep 16, 2011Jun 4, 2013Russell E GrayMagazine loader
US8561600Nov 21, 2011Oct 22, 2013Kee Action Sports I LlcPaintball loader
US20120192477 *Jan 28, 2011Aug 2, 2012Ray KimSystems and methods for loading and unloading a magazine
US20130067788 *Sep 16, 2011Mar 21, 2013Russell E. GrayMagazine Loader
USRE43756Jan 7, 2005Oct 23, 2012Kee Action Sports I LlcRapid feed paintball loader with pivotable deflector
WO1988001725A1 *Aug 21, 1987Mar 10, 1988Ram Line IncMethod and apparatus for orienting and loading rim-fire cartridges
WO1989004454A1 *Oct 27, 1988May 18, 1989Ram Line IncMethod and apparatus for orienting and loading cartridges
U.S. Classification86/47, 244/155.00A, 42/87
International ClassificationF41A9/83, F41A9/00
Cooperative ClassificationF41A9/83
European ClassificationF41A9/83