US1132519A

US1132519A - Self-inking hand-stamp.

Info

Publication number: US1132519A
Application number: US82944214A
Authority: US
Inventors: Casper L Redfield
Original assignee: HARRY S FOLGER
Current assignee: HARRY S FOLGER
Priority date: 1914-04-04
Filing date: 1914-04-04
Publication date: 1915-03-16
Anticipated expiration: 1932-03-16

Description

H. s. FOLGER & 0. L. REDP'IELD.

SELF INKING HAND STAMP.

APPLICATION FILED APR.4, 1914.

zfizf eggesx HARRY s. rowan AND CASPER n nnnnnnn; or cn'xcneofintmois; SAID annrrnnn ASSIGNOR TO SAIDIFOLGER.

1 sELr-INKiNe HAND-STAMP.

I To all whom 'it' may concern:

Be it known that we, HARRY S. FOLGER and CASPER L. REDFIELD, citizens of the United States of America, and residents of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvemerits in Self-Inking Hand-Stamps, of which the following is a specification.

Our invention relates to self inking hand-, stamps and has for its object improvements in such stamps. s

In the accompanying drawings Figure 1 is aside elevation; Fig. ,2 is a front elevaf tion; Fig. 3 is a central section corresponding to F1g. 2; and Fig. 4 is an enlarged sec amen-Jimm e)? Fig. 3; j

bands 10 are ifi dr in th pe. supported in 'a' frame 11 provided with a handle 12. The-bands 10 are supported on band wheels 13 mounted upon a band shaft 14. At the-lower part ofthe frame 11 the type band's run over a bridge 15.

The parts so far described represent the ordinary hand dating stamp well known in the trade and require no further description.

Through the lower part of the frame 11, and just above the bridge 15, is a shaft 16 parallel to the shaft 14. The outer ends of

shafts

14 and 16 are connected to links 17 and are guidedin slots 18 in the side frames 19. Tie rods 20 secure the side frames 19 togetherbelow, while the parts associatedwith the shaft 16'hold the upper par'tsbf the frames 19 so that said frames willremain parallel and permit the stamp frame 1 1to' rise and fall in the frames 19.

Pivoted on screws 21 in side frames 19 is a swinging frame 22 in which is supported 'fiadflholding box 23. This box contains the pad 24. Thepivot 21 is so located that when the-band frame 11 is at its highest osition and the swinging frame 22 is moved orward under the bands 10, the face of the pad 24 will be in contact with the type on the bands which are directly beneath the bridge 15.

Secured to the shaft 16 by pins 25 are arms 26 which have their free ends pivoted at 27 to the side arms of the swinging frame 22. These parts are soarranged that when.

the hand holding frame'll is. moved down:

wardin-the side frames 19, the pad holding frame 22 will be moved from the osition shown in full lines in Fig. 4 tothat s own in dotted lines. In this moving, the pad will initially move downward more rapidly than the type, and then will move laterally out of the way so that thetype may move past the pad to the printingpoint.

- On the shaft 16 is aspring 28 having one endseeuredto the shaft and the other end secured tothe band frame 11. As the arms 26 are rigidly secured to the shaft 16 by the pins 25, and asthe free ends of these arms swing rearwardly and upwardly in the are of a circle about the'pivot 21when the shaft 16 descends in the slot 18, it will be evident that such action turns the shaft 16in its bearings and winds the spring 28. The wind of the spring 28 on the shaft 16, and its initial tension, are so arranged that the action of the spring is to elevate the bandholding frame 11'. This elevation finds its limit by contact,between the pad 24 and the type 10, the connections being such that the pad is moving upward more rapidly than the type at the instant of contact.

' In using the stamp, the side frames'19 are stationary and the type carrying parts move downward in these frames. In making such movement. the hand of the operator. is brought toward the tops of the frames 19 Which are on opposite sides of the handle 12. To. avoid having the hand strike these frames and at the same time to keep the handle short so that the entire stamp will not occpuy too much space, the side frames do not extend far enough upward to inclose the shaft 14 in the slots-18 when the stamp is in normal position. This leaves the slots 18 open at their upper ends. To properly guide the stamp body in the side frames at the beginning of the downward movement of the body, guide blocks 29-are secured to the inside of the links, 17 and operate the slots 18. These blocks 29 may extend the entire length of the links 17 and serve as the only guides for the stamp body in the frames 19. We have, however, shown them simply as short blocks located between the

shafts

14,and 16, the said shafts themselves serving. as. the ends of the guides in the slots-18. f

It will'be observed that the stamp frame composed of the plates 19 is not symmetrical with regard to the center line of the slots 18, but extends farther to the rear than to the front of the center line of the stamp. The objeot'in shortening the forward extension vof the frames 19 to something less than would be normally used for a substantial base is to bring the front tie rod 20 near to the type when in printing;position;v so that said rod will serve as a visual guide-in placing the stamp accurately at the place where it is desired that the printing shall be.

I Thereacwardextension is made somewhat tioni whieh states that as the shaft 16 (and lid consequently the stamp body) moves downward in the side fragrnes 19 'the pivots?? move ingthe arcpf a circle about pivots21, it will be seen vtbe inspectionof-Fign 4: thnt the shaft 16not only moves below pivots Qflbnt also belowmovingpivots 27. .The efiectof thisis to bringthe rearward movement of the pad 24lto a stop while the type are 'moving' downward and to also giveit. a very slight forward. movement justv as the type are reabhingthe printing point. The general resultvof this isto'. reduce the total movementvof the pad to a minimum and thereby save space in the stamp and power required tomove the stampbody and pad in mpr nting. a

ln oneof the links '1? is anotch 30, and securedto the adjacent frame 19 is a dog 31, adapted to engage said notch when the stamp is nearest itslowestposition and hold it in thatposition, against the elevating action of the spring 28. 'The,notch.30 and dog 31 are sorelated that when in. engagement with eachpther the pad Qiis at or near its most rearward position. The pad box23 is held in the swinging frame22by friction and Inay bepushedout of the frame 22 by the application ,of'a moderate force manually applied. 13y the chain of connections involving the vertical descent of the stamp body and themovement of the .pad to its mostyearward position at a time when the stamp body is near but somewhat above, its

lowest position, tl1e, not ch 30 and dog 31.

serve to .holdthe. swinging frame22 in that position in,,whichit isniost easy to remove the pad box for inking the pad. Therearward extensienof the frame 1% which places the rear .tie rod 20 farther from the center of the stamp movement than is the front tie rodgnzes ,convenient space for the downward ncrement of the, pad bonto release it ,rfrom the swinging frame. This held position of theiswingingframe and. pad box is somewhat to the rear of the dotted position shown. in F1. 4=,,.,which.dotted osition is thatpccnp e when the stamp body lowest position,

accidents as falling upon the floor. *thatthe elevating spring 28 is concealed beis. at its it will be observed that the connections "for self inking are located between--the stamp .framezll and the side frames 19, and consequently are protected from in ury, even when'the stamp is subjected to inch hind the bands 10 and gives no exterior evidence of its existence. Placing the elevating spring at this place between theband wheels 13 and the bridge 15 avoids the necessity-for a long handle to receive such spring asis the case with ordinaryself inking stamps it is to be observed thatXthe two side frames 19 are flat plates exactly. alike, and are connectedtogether by tie rods. "-By'simply changing the length of. these vtie. rods and the ad holding devices, the same frames and operating devices are. adapted to accommodate stamps of any width.

The term dating stamps asusedin the claims hereinafter refers to; a co plete device, which is not ,self inking bu .whichis adapted for ordinary hand usage without any of the attachmentswhich adapt itto self inkin operations. It is the complete commerciifiarticle to which self inking attachments are applied.

Dating stamps are usually ,band stamps, and that form ofdater is hereillustrated. Band stamps are :'sometimes' numbering stamps by reason of changes in thecharacters on the bands, but :dating stamps as here used is intended to, include band stamps of the character illustrated in the drawings.

lil hat weclaim is: 1. A frame consisting of two sheetmetal plates connected together by tie rods, a hand stamp located betweenthe frame plates, pro- Mid jections on the stamp projectingv through an ink pad pivote to the outer frame, links pivoted to the stamp and connected to the pad, andv a stamp elevated spring mounted upon the pivotal supports for the links.

3. A frame consisting of two sheet metal side plates connected together by tie rods, a stamp located between the plates andguided by the outer faces of said plates, a pivoted to the side plates, and apa-inoving link connected. tothe stamp between the stam%body and the outer ides therefor.

4e. the combination wit the frame, the i lll lid

type bands and the band wheels of a dating stamp, of an outer frame consisting of two frame in which thestamp is vertically guided, of an ink pad pivoted to the outer frame, a shaft extending through both frames and the space inclosed by the .type

- bands, an elevating spring on said shaft within said space, and links connecting the ink pad to the parts of the shaft between the inner and outer frames.

6. The combination with a band stamp, of a frame within which the stamp is guided, a shaft extending through the stamp and frame, an elevating spring located on said shaft and within the stamp, an inking pad, and connections from the pad to those parts of the shaft between the stamp and the frame.

7 The combination with a dating stamp of a frame having guiding slots therein, links connected to the stamp and provided with guide blocks operating in said guiding slots, and a dog secured to the side of the frame and adapted to engage a notch in one of said links to hold the' stamp at a fixed place in the frame.

8. The combination with a dating stamp, of a frame consisting of separate plates located on opposite sides of the stamp and connected together by tie rods,

links connected to the stamp and-located outside of the plates forming the frame, means ,by which the stamp may be reciprocatedin the frame, and a dog secured to the outside of one of said plates and adapted to engage a notch in the adjacent link to hold the stamp at a fixed place in the frame. I

9. A stamp body, a stampf'ramie within which the body reciprocates, a; swinging" frame pivoted to the stamp frame, an 1 pad supported in the swinging frame, a shaft extending through the stamp body, links rigidly secured to the shaft and pivotally connected to the swingin frame, and a spring located upon said sha t and acting to turn the same so as to bring the pad against the stamp body.

'10. A 1 stamp frame; a stamp body arranged to reciprocate in the stamp frame, a swinging frame pivoted to the stamp frame, a removable ink pad supported in the swinging frame, a shaft extending through the stamp body, links rigidly secured to opposite ends of the shaft and pivotally connected to the swinging frame, a-

spring on said shaft and acting to hold the pad against the stamp body, and locking devicesfor'holding the swinging frame with the pad away from the stamp body and 1n a position convenient for the removal of the P d- Signed at Chicago, Illmo1s th1s 31st day of March 1914.

HARRY s. FOLGER. v CASPER L. REDFIELD. Witnesses: WALTER H. Rnnrmm, James C. Rnnrmnn.