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Publication numberUS1276100 A
Publication typeGrant
Publication dateAug 20, 1918
Filing dateDec 22, 1917
Priority dateDec 22, 1917
Publication numberUS 1276100 A, US 1276100A, US-A-1276100, US1276100 A, US1276100A
InventorsPaul Niznik
Original AssigneePaul Niznik
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Portable barrier.
US 1276100 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

" P. mzmm.



Patented Aug. 20, 1918.

attain? rm: Nouns; PITIRS co. Puomurna. WASHINGTON. o. c.

PAUL mm, QEBINGHAMTQN, some PORTABLE Specification of Letters Patent.

Patented Aug. 20, 1918.

I Application filed' December 22; 1917; Serial No. 208,439;

To all "whom it may concern:

Be it known that I, PAUL NIZNIK, a citizen of the United States of America, residing at Binghamton, in the county of Broome and State of New York, have invented certain new and useful Improvements in Portable Barriers, of which the following is a specification.

The primary object of the invention is the provision of a device especially adapted for use in time of war for impeding the progress of the enemy and readily carried by soldiers for positioning upon the ground in its operative arrangement.

A further object of the device is the provision of a foldable member light in Weight although possessing great strength adapted for arrangement upon the ground by retreating soldiers within the path of travel of the pursuing army, whereby the enemy will be injured and hindered in its movement.

lVith these general objects in view and others that will appear as the nature of the invention is better understood, the same consists in the novel combination, construction and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawing, and then claimed.

In the drawing forming a part of this application and in which like designating characters refer to corresponding parts throughout the several views,

Figure 1 is an elevational view of the device.

Fig. 2 is a sectional view thereof taken upon line II-II of Fig. 1, and

Fig. 3 is an end View of the device.

The invention broadly consists of a foldable frame or grating 10 formed of pivotally connected strips 11 in lazy-tongs arrangement provided with a binding member or cross-piece 12 at one end thereof.

The frame may be readily folded against the cross-piece 12 and secured in its closed arrangement by means of a strap 13 centrally secured to the said cross-piece while a neck strap 14; is carried by the cross-piece and by means of which the device may be easily carried by a soldier by positioning the said strap 14 either upon his arm or around his neck. Side plates 15 are carried by the crosspiece having slots 16 therein for slidably receiving the pivots 17 of the adjacent strips 11, whereby the amount of relative movement between the said strips is limited. The pivots 18 for the strips 11 are in the form of spikes having pointed ends 19 projecting from the frame 10 at one side of the device.

A central plate 20 is provided for the cross-piece 12 intermediate the end plates 15 with the short adjacent end strips 21 of the lazy-tongs frame pivoted thereto. It will be understood that at the opposite end of the frame 10 from the cross-piece 12, two short strips 21 corresponding to the strips 21 will be arranged pivotally connected together at their inner'ends by a pointed bolt 22. The full length strips 11 are each arranged with a pivot spike 18 at each end and also at three intermediate points so that the completed device presents five complete rows of pivoting spikes, excepting spikes which will be arranged at the free ends of the terminal strips 11 and these will have no pivotal operation.

The soldier may readily carry this invention and when forced to retreat, the strap 13 may be released for opening the frame 10, slightly separating the strips 11 and a large number of the devices being thrown upon the ground with the spikes 18 extending upwardly, the progress of the enemy will be greatly impeded by stepping upon the said spikes. A serviceable and light barrier is provided which may be readily used by soldiers to prevent capture.

What I claim as new is 1. A portable barrier comprising a lazytongs frame having pivot bolts sharpened and projecting from one side thereof, a cross-piece at one end of the frame, limiting means for the lazy-tongs carried by said cross-piece, a retaining strap for the lazy-tongs when closed centrally carried by the cross-piece and a carrying strap attached to the latter.

2. A portable barrier for army use comprising a cross-plece, plates carried by the ends of the cross-piece arranged with vertical slots therein, a frame of lazy-tongs construction slidably attached within the slots of said plates for limited opening movement, the said frame having pivot members, pointed extensions carried by said pivot members at one side of the frame projecting upwardly when the device is operatively positioned upon the ground, and retaining and carrying straps provided upon said 10 orosspiece.

In testimony whereof I aflix my signature.


Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. v

Referenced by
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US2554177 *Nov 13, 1948May 22, 1951Tennessee Fabricating CompanyFloor furnace guard
US4669521 *Aug 11, 1986Jun 2, 1987Worldsbest Industries, Inc.Children's expandable gate with safety features to prevent head and neck entrapment
US4995756 *Jan 29, 1990Feb 26, 1991Kilgrow Donald CVehicle tire deflator
US5322385 *Nov 16, 1992Jun 21, 1994Ron ReismanAnti-vehicle barrier
US5330285 *Jan 28, 1993Jul 19, 1994Stop-Stick, Inc.Apparatus for deflating tires of moving vehicles
US5452962 *Jul 7, 1994Sep 26, 1995Stop Stick, Inc.Apparatus for deflating tires of moving vehicles
US5704592 *Nov 21, 1995Jan 6, 1998White; Gary RonaldExpandable safety barrier
US5775832 *Oct 8, 1996Jul 7, 1998Kilgrow; Donald C.Compact tire deflator
US5820293 *Oct 11, 1996Oct 13, 1998Stop Stick, Ltd.Vehicle tire deflation device
US6155745 *Jun 4, 1998Dec 5, 2000Stop Stick, Ltd.Vehicle tire deflation device
US6409418May 3, 2000Jun 25, 2002Pmg, Inc.Tire deflating blade system
US7174617Sep 14, 2004Feb 13, 2007Wright Stephen GAccordion fencing system
US7793759 *Aug 9, 2006Sep 14, 2010Aiken Jr James RLadder locking device and method
US7850392 *Aug 29, 2008Dec 14, 2010Michael James SchubertPortable road barrier unit
US8973943 *Jul 21, 2014Mar 10, 2015Daniel G. GimbeDolly adapter
US20110162280 *Jul 16, 2010Jul 7, 2011Jia Hong YuPortable collapsible barrier
U.S. Classification256/1, 160/135, 160/127, 160/136
International ClassificationE01F13/12
Cooperative ClassificationE01F13/12
European ClassificationE01F13/12