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Publication numberUS641055 A
Publication typeGrant
Publication dateJan 9, 1900
Filing dateMay 10, 1899
Priority dateMay 10, 1899
Publication numberUS 641055 A, US 641055A, US-A-641055, US641055 A, US641055A
InventorsJames Thompson
Original AssigneeJames Thompson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 641055 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

No. 64!,055. Patented Ian 9, I900.




n filed May 10, 1899 No Model.)



SPECIFICATION forming part of Letters Patent No. 641,055, dated January 9, 1900.

Application filed May 10, 1899. Serial No. 716,29fl. (N0 model.)

To all whom it may concern;

Be it known that I, J AMES THOMPSON, a citizen of the United States, residing at Greeley, in the county of Weld and State of Colorado, have invented certain new and useful Improvements in Bag-Holders, of which the following is a specification, reference being had therein to the accompanying drawings.

Myinvention relates to bag-holders for supporting a bag or sack and. holding it open in position for filling.

The primary object of the invention is to provide a device of the character described which maybe manufactured at small cost and readily manipulated to release the sack or bag after it is filled.

The novel features of the invention will be fully described hereinafter and defined in the appended claims, in connection with the accompanying drawings, which form a part of this specification.

Figure 1 is a view in perspective of the invention, the bag being shown in dotted lines. Fig. 2 is a rear elevation of the same, and Fig. 3 is a side elevation showing the springcontrolled hooks pushed rearward.

The reference-numerals 1 and 2 designate parallel horizontal bars constituting the base of the device and secured together by a platform 3.

4 and 5'designate uprights secured at their lower ends to the bars 1 and 2, respectively, and connected at their upper ends by a crossbar 6 and a transverse strip 7, secured to the front sides of the uprights 4 and 5.

To the center of the transverse strip '7 is pivoted a link 8, to which are secured the inner ends of rods 9 and 10, the pivots 11 of said rods being located at opposite sides of the pivotal point of the link, so that the vibration of the link will move the rods in op- Y posite directions.

a spring 17, which is centrally coiled and pro vided with diverging ends, one of which is bent to engage an opening in the bracket, While the other end engages anopening 18 in the rod 12.

The rods 9 and 10 extend upwardly at di verging angles, and their outer ends are pointed or sharpened to engage a bag or sack and are supported in eyes 19, projecting from the cross-piece 7, and have a sliding movement within said eyes when operated by means of the bell-crank lever 13.

The pointed or sharpened outer ends of the rods 9 and 10 are adapted to engage the rear side or corners of the bag.

20 and 21 designate tubes or sleeves the rear ends of which extend through and are held in openings in the strip 7 and cross-bar 6. These tubes project forward over the platform 3 parallel to each other and constitute supports for the rods 22 and 23, the forward ends of which are bent rearwardly and then forward to form hooks 24.. The rear ends of said rods project beyond the cross-bar 6 and are formed with slots 25, through which project the ends of a spring, the center of which is formed into a vertical coil 26 and is supported upon a bracket 27, having a vertical arm 28, over which the coil 26 fits. This con struction and arrangement of the spring affords an independent spring-arm 29 for each of the rods 22 and 23, so that said rods need not necessarily be operated at the same time to engage the bag, and hence the bag need not be accurately or squarely fitted over the hooks in order to avoid the sagging of one corner thereof.

The operation of the device will be readily understood. The bag is first hooked onto the pointed ends of the rods 9. and 10, and then the rods 22 and 23 are pushed backward against their springs sufficiently to enable the bag to engage the hooks 24:. The springarms at the rear ends of the rods then force the latter forward to distend the mouth of the bag for filling. After the bag or sack is filled the bell-crank lever is forced outwardly by its handle 30, thus drawing the rods 9 and 10 inward to release the bag at its rear corners, when it may be readily disengaged from the hooks 24.

It will be observed that there are no parts to catch or obstruct the bag after its release and that the Work of engaging and disengaging the bag may be quickly done from the front of the device.

I claim 1. In a bag-holder, the combination with a frame comprising uprights and a cross-bar, of a link pivotally supported in front of said cross-bar; oppositely-extending pointed rods pivotally secured at their inner ends to said link, a spring-retracted rod secured at its inner end to said link; a lever for operating said spring-retracted rod means for supporting the outer ends of said rods; tubes or sleeves the rear ends of which are held in openings in said cross-bar; rods arranged in said tubes and formed with books at their front ends, and a spring for engaging the rear ends of said hook-rods.

2. In a bag-holder the combination With a supporting-frame having a cross-bar, of a link pivotally secured in front of said crossbar; oppositely -extending pointed rods secured at their inner ends to said link, and supported at their outer ends in eyes or keepers; a bell-crank lever fulcrumed at one side of the frame; a rod connecting said lever to thelower end of said link; a retracting-spring for said lever and connecting-rod; tubes or' sleeves projecting from the front side of the cross-bar, and spring controlled rods arranged in said tubes or sleeves and provided at their front ends with hooks to engage a bag.

3. In a bag-holder the combination with the frame provided With a cross-bar, of a link pivotally secured to said cross-bar, oppositely-disposed pointed rods pivotally secured at their inner ends to said link and supported in keepers at their outer ends; means for operating said pointed rods; means for engaging the front corners of the bag comprising independent rods formed at their front ends with hooks, While their rear ends extend through the cross-bar; and a spring at the rear side of the cross-bar, said spring being coiled at its center and fitting over a support and having its ends extending later ally in opposite directions to form independent spring-arms for the hook-rods.

In testimony whereof I affiX my signature in presence of two Witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5050743 *Aug 17, 1990Sep 24, 1991Unisys CorporationCombined sack and tray system for mail collection
US20050037429 *Mar 29, 2004Feb 17, 2005Receptors LlcArtificial receptors including reversibly immobilized building blocks and methods
Cooperative ClassificationB65B67/12