US2019211A - Machine for enclosing letters in envelopes - Google Patents

Machine for enclosing letters in envelopes Download PDF

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Publication number
US2019211A
US2019211A US567686A US56768631A US2019211A US 2019211 A US2019211 A US 2019211A US 567686 A US567686 A US 567686A US 56768631 A US56768631 A US 56768631A US 2019211 A US2019211 A US 2019211A
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United States
Prior art keywords
envelope
roller
flap
plate
envelopes
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Expired - Lifetime
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US567686A
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English (en)
Inventor
Clare Hermann
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Individual
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Individual
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Publication of US2019211A publication Critical patent/US2019211A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
    • B43M5/00—Devices for closing envelopes
    • B43M5/04—Devices for closing envelopes automatic
    • B43M5/042—Devices for closing envelopes automatic for envelopes with only one flap

Definitions

  • the subject of the present invention is a machine for enclosing letters, documents and the like in their envelopes or wrappers and particularly of documents which have already been folded in envelopes provided with gummed flaps.
  • the machine is provided with a number of devices, viz. devices:
  • Figure 1 shows a diagrammatic side elevation of the parts after removing one wall of the framework and in the receiving position of the moistening device.
  • Figure 2 is an end elevation of the introducing side of the machine.
  • Figure 3 is a diagrammatic side elevation of the moistening device in the delivery position.
  • FIGS 4, 5, and 6 are detail views of parts used for opening out the flap of the envelope.
  • Figure '7 is a detail view of the arrangement of a cam disc used for opening out the flap.
  • Figure 8 is a similar view of the cam disc used for the moistening device.
  • Figure 9 is a plan of a drum used for the mois- 45 t-ening device in the position according to Figure 1.
  • Figure 10 is a similar view of a detail of this drum.
  • Figure 11 shows another view of a detail of the 50 drum
  • Figures 12 and 13 are side elevations of stop devices provided on the drum shaft.
  • Figures 14 to illustrate several successive positions of the envelope and of the parts han- 55 dling the same.
  • the frame of the machine consists of two side walls I, l a base plate 2 and a cover plate 3.
  • the drive is effected by an electric motor 4 which drives the actual driving shaft 1 of the machine, carrying the 10 main cam discs, through the medium of worm gearing 5 and intermediate shaft 6.
  • the envelopes 8 to be operated upon are arranged vertically. in a pile in a kind of cage which is formed by an inclined end plate 9 secured between the 16 side walls of the frame and by six wires l0 extending therefrom, the latter being so'inclined that the envelopes are fed forward towards the end plate by a pusher plate I2 running on rollers H provided with ball bearings.
  • a lower edge of 20 the pusher plate is bent over in order, if necessary, to increase the pushing force of the plate by means of weights placed thereon.
  • the rollers I I are mounted in lugs fixed to the plate 12 and run freely upon the two upper inclined wires ID the weighted plate IZexerting a constant slight push against the pile of envelopes.
  • the envelopes have their gummed closing flaps on the side of the end plate and a cutaway portion IS in this plate permits of the unobstructed opening of the flap of the front envelope.
  • at least the two lowermost wires of the cage are bent upwardly at It in such a manner that the envelopes at this point are separated at their upper edges in the form of a fan and thus enable 85 the front envelope to be separately withdrawn with certainty.
  • a small shaft l5 to which is secured a sheet metal strip [6, about an inch wide, which on the rotation of the shaft passes over the upper edges of the envelope and bends this back in such a manner that the flap of the front envelope projects somewhat from the envelope so that two fingers IT suspended on the end plate underneath the shaft engage under the projecting flap of the first envelope by means of their points bent over the cut out portion l3 when swinging upwardly towards the envelope, in the position illustrated in Figures 2 and 4 and can turn the flap through about 40.
  • a roller 25 In front of the end plate 9 is provided a roller 25, engaged by a forked arm 23 mounted in the frame and guided in a slot 24, which at the same time as the toothed segment 28 is moved upwards from its lowermost position 25 until it comes into contact with the roller 26 constantly rotating in the direction of the arrow. During this movement, as is shown for an intermediate position in Figure 5, it moves with it the flap of the envelope and brings it between it and the roller 26.
  • This roller is constantly rotated from the driving shaft 1 by means of a drive of which only the pulley 28' on the roller 26 is shown.
  • the flap is thus gripped and is moved upwardly together with the envelope by the two rollers 25, 26, which now rotate together, in order to be delivered to the devices for opening the envelope as widely as possible and for inserting the letters Figs. 14 and 15.
  • the separate drive of the forked arm 23 and of the roller 25 by means of the link I9 (Fig. 7 will be described hereinafter in greater detail.
  • the said devices for opening the envelope in order to effect a certain insertion of the letter 8' and the supply device for the letter 8 are provided in the upper portion of the frame.
  • the letters 8 are folded on the cover plate 3, which serves as a folding table, and are inserted between the two endless supply bands 21.
  • the supply bands 2! for the letters 8' are arranged vertically.
  • the folded letters are inserted therein from the top and are guided by two stationary funnel shaped plates 28, 28 at their edges projecting laterally from the bands.
  • the plates 28, 28 are held stationary by strips not shown attached to their edges and to the two side walls I, l
  • the bands only take up a limited middle portion of the space available between the side walls I I so as to leave room for the two upper blades 29', extending laterally to the whole width of the envelope, of a tongue shaped plate 29 extending downwardly and which at its upper end is held pivotally by means of a shaft 29 and actuated by a cam disc, not shown.
  • Plate 29 is soldered to the shaft 29 This plate is provided at the top with a cut out portion in which space is provided for the supply bands ( Figure 2). Whilst the upper rollers 21 guiding the bands and subjected to the action of springs 21 are mounted in the side walls I, I and are driven by toothed wheels, not shown, the ,lower rollers 21 are driven and are held in position by two arms 21 mounted in the frame and above the shaft 29 The upper width of the tongue shaped plate corresponds accurately with the internal width of the envelope and is for the purpose when entering the envelope to adjust this accurately laterally.
  • cut out at the middle to a point, is so suspended in lateral pins 3H held in lugs projecting from the arms 21 that in the vertical position of the tongue shaped plate as shown in Figure 1 it bears closely against this and thus bends the upwardly directed flap of the envelope backwards when this appears through the rollers 25, 26 and thus holds the envelope wide open.
  • This tongue shaped plate 29 which has swung from its delivery position as shown in Fig. 19 into a vertical receiving position, carries out a short outward movement, as indicated by dotted lines, beyond its vertical position whereby the s-shaped plate 3
  • the rollers 25, 26 according to Fig. 14 have introduced the end of the flap 8 between the plate 9 and the rake 32'.
  • the plate 29 having accomplished its short swinging movement has pushed the flap somewhat aside and has entered into the envelope
  • the envelope which has been conveyed all the while upwards by the rollers 25, 26 is fully inside of the envelope holding it wide open.
  • the conveying movement of the supply bands has then released the letter 8' guided by the funnel shaped plates 28, 28 and has passed this between the tongue shaped plate and the S-shaped plate into the envelope.
  • the envelope has been moved by the rollers 25, 26 into its uppermost position Fig. 16 and the wide portion of the tongue shaped plate has filled the envelope thus ensuring that the letter 8' can pass completely into the envelope Fig. 17.
  • a holder 34 is held by a spring 34' against a stop 39 in such a position that when the tongue shaped plate swings upwardly into the chain dotted position for delivering the envelope with the enclosure to the moistening device it bears against the envelope and holds this during this movement Fig. 18.
  • the roller 25 in the path of the tongue shaped plate has been somewhat lowered by reason of the particular shape of the cam disc 23,
  • This drum appertaining to the moistening device consists, according to Figures 1, 3, and 9, of two lateral circular plates 35 which are connected together by a sheet metal segment 36 coated with felt strips 36, corresponding with the shape of the flap gumming, and two rods 31. To each of the latter are secured five guide strips 38 between which the envelope is adapted to be passed from two rollers 39 and 49 located between the circular discs 35.
  • the roller 39 is mounted in a stationary position between the circular discs, whilst the roller 40 at the moment at which the envelope moved by the tongue shaped plate swings into the position 29 moves into the position 40 in a curved guide 40' provided in one of the 'circular discs 35 in order to permit of the passage of the envelope and then directly afterwards to again bear against the roller 39 under the action of a spring 40 ( Figure 3).
  • the remaining construction of the moistening device has the following parts:
  • the drive shown in Figures 9, 12, and 13, is effected from the shaft 1 by toothed wheel gearing.
  • the toothed wheel 42 is loosely fitted on the shaft 35 of the drum and turns in the same manner as the drum in a clockwise direction.
  • On the drum shaft are also keyed a locking disc 43 and a driving disc 44.
  • the former is provided with a releasing pin 43' and a spring 43 of which the pin releases a pawl 43 engaging in the notches 43 under the action of a spring 43 rotatably mounted on the corresponding side wall I of the frame in that it strikes against a lateral lug 43 of the pawl.
  • the driving disc 44 on the contrary, is provided with a pawl 44 rotatably mounted on the toothed wheel 42 which under the action of the spring 44 engages with the teeth 44 of the driving disc as soon as it is released from the releasing pin 44 provided on the side wall I.
  • the arrangement is such that the release of the pawl half rotation according to the receiving position 10 ( Figure 1) and the ejecting position ( Figure 3) of the drum.
  • the shafts of the roller 49 pass through the slots 40 in the two circular discs 35 on the outer side thereof and are there rotatably mounted by means of lugs 46 loosely mounted on the drum shaft and rigidly connected together by a 20 transverse rod 45.
  • lugs 46 loosely mounted on the drum shaft and rigidly connected together by a 20 transverse rod 45.
  • Figure 10 for one side of the drum.
  • the lug is provided on a hub with a ratchet disc 46'; having two teeth 46 and rigidly connected to the corre- 26 sponding lug, with which can engage a pawl 46, held in contact with the ratchet disc by the spring 46 so that when an arm 41, carrying this pawl and loosely mounted on the drum shaft,
  • the spring 46 overcomes the action of the spring 40
  • the shaping of the cam disc 60 is such that by the cam a there is produced the large swinging movement of the roller 40 into the position 49 and thereupon after inserting the en- 40 velope 8, but before this has touched the transverse rod 4
  • are arranged relatively to the drum diametrically opposite the tongue shaped plate position 23 and are adapted to eject the gummed envelopes over a plate 53.
  • the upper roller 65 56 when ejecting the envelope from the drum through the transverse bar 4! receives a rapid opening movement in order to grip with certainty the front edge of the envelope passing from the drum.
  • a water trough 54 in which there rotates a roller 55 in order to moisten a rubber roller 56.
  • this roller comes into contact with the 75 Up to the cam d and the large cam a the 55 felt strips 36' (Fig. 9) of the sheet metal segment 3B and moistens these whereupon these felt strips when passing a roller 51 arranged underneath the drum and subjected to spring action, also moisten the flap of the envelope which has been moved by the drum rotating into its delivery position, so that when the envelope is ejected from the drum, as indicated in Figure 5, and when passing the rollers 50, the moistened fiap is pressed against the envelope and gummed thereto.
  • a supply cage of the envelopes comprising a feeding device and a rotary device to bend back the upper edge of the foremost envelope, a mechanism cooperating with the cage and said rotary device to open the flap and to seize it between feed rollers, a vertically arranged, feed device for the folded letter, a pivotable plate combination arranged underneath this feed device and above the feed rollers combined with the cage to open the envelope completely and present it to the fed folded letter, a stepwise rotatable moistening device arranged to receive the filled envelope from said plate combination and provided with a moistened surface, a holding member combined with said plate combination to maintain the filled envelope on its way to the moistening device, a press roller cooperating with the rotary moistening device to press the projecting flap against said moistened surface, a water t
  • a machine for enclosing letters in envelopes as set forth in claim 1 in which the rotary device comprises a sheet metal strip secured toa rotary shaft carrying a pinion and extended over the upper edges of the foremost envelopes a toothed segment meshing with said pinion, a cam disc mounted on a driving shaft, and a lever and link arrangement engaged by said cam disc and connected to said toothed segment.
  • the flap opening device comprises a pair of fiat fingers with curved points hinged to the front plate of the cage and formed to enter between the envelope and the slightly projecting flap, a rotary shaft extended over the upper edge of the front plate and a pinion and two cams fast to said shaft, said cams engaged into indentations of said fingers, a toothed segment meshing with said pinion, a cam disc fixed to a driving shaft, and a lever and link arrangement engaged by said disc and connected with said toothed segment.
  • the envelope feeding device comprises a first stationary roller provided with a driving sprocket and a second rotatably supported roller adapted to cooperate with the first, vertical guides in the face of said supply cage to guide the shaft ends of the second roller, forked pivotally supported arms to guide the shaft ends of said second roller, a cam disc mounted on a driving shaft, a lever and link arrangement operatively connecting said driving shaft with said forked arms.
  • the pivotable plate combination comprises a vertical and swingingly suspended tongue-shaped plate and a tongueshaped plate bent like an elongated S leaning wedge-like with its recessed end against the first plate, both plates adapted to enter into the upwards moving envelopes, a cooperatively arranged rake formed as a hollow grip to lean against the front of the envelope, stationary funnel-shaped plates arranged above said tongue-shaped plates as guides of a letter to be introduced into the open envelope, a swingingly arranged holding member to bear on the back side of the envelope and an operating mechanism including a cam, levers and links and operatively combined with the driving shaft to swing the pivotable plates carrying the filled envelope into reach of the moistening device.
  • the structure of the moistening device comprises a rotary drum between the receiving point of the filled but unmoistened envelopes and delivery rollers for ejecting the ready closed letter, said rotary drum comprising two circular side plates mounted, on a rotatable axis, a segment plate carrying felt strips shaped according to the gummed border of the flap, and two rods connecting said plates, a driving disc combined with a pawl to mark two steps for one revolution, and a corresponding locking disc, both discs fast on said axis, a pair of rotatably mounted in feed rollers diametrically opposite the said two rods, one of said rollers ar- 15 ranged stationary and the other swingingly to open and close on the first, guide strips attached to said two rods and a movable rod arranged between the said fast rods to serve as ejecting means for the envelope introduced between said guidestrip's, a stationary rubber roller mounted on one of the circular side plates of

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  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Packaging Of Special Articles (AREA)
US567686A 1931-03-25 1931-10-08 Machine for enclosing letters in envelopes Expired - Lifetime US2019211A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2019211X 1931-03-25
CH374355X 1931-03-26

Publications (1)

Publication Number Publication Date
US2019211A true US2019211A (en) 1935-10-29

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ID=32509235

Family Applications (1)

Application Number Title Priority Date Filing Date
US567686A Expired - Lifetime US2019211A (en) 1931-03-25 1931-10-08 Machine for enclosing letters in envelopes

Country Status (5)

Country Link
US (1) US2019211A (enrdf_load_stackoverflow)
BE (1) BE387461A (enrdf_load_stackoverflow)
CH (1) CH153222A (enrdf_load_stackoverflow)
FR (1) FR733124A (enrdf_load_stackoverflow)
GB (1) GB374355A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915863A (en) * 1954-11-15 1959-12-08 Ernst W Kummer Apparatus for handling and filling envelopes
US3213588A (en) * 1961-03-02 1965-10-26 St Regis Paper Co Automatic valve bag applicator
US3910007A (en) * 1973-04-26 1975-10-07 Baeuerle Gmbh Mathias Device for opening the flaps of envelopes
EP0059357A1 (de) * 1981-02-26 1982-09-08 Hasler AG Falzmaschine
US4766715A (en) * 1986-05-26 1988-08-30 Smh Alcatel Envelope opening device
FR2629758A1 (fr) * 1988-04-08 1989-10-13 Pitney Bowes Plc Appareil de manutention de papiers
US5097654A (en) * 1991-02-19 1992-03-24 Antonio Latsounas Envelope filler and sealer
WO2016026712A1 (de) * 2014-08-22 2016-02-25 Kern Ag Kuvertiervorrichtung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10015754C1 (de) 2000-03-29 2001-06-07 Bell & Howell Co Antriebs- und Betätigungssystem für eine Kuvertierstation

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915863A (en) * 1954-11-15 1959-12-08 Ernst W Kummer Apparatus for handling and filling envelopes
US3213588A (en) * 1961-03-02 1965-10-26 St Regis Paper Co Automatic valve bag applicator
US3910007A (en) * 1973-04-26 1975-10-07 Baeuerle Gmbh Mathias Device for opening the flaps of envelopes
EP0059357A1 (de) * 1981-02-26 1982-09-08 Hasler AG Falzmaschine
US4766715A (en) * 1986-05-26 1988-08-30 Smh Alcatel Envelope opening device
FR2629758A1 (fr) * 1988-04-08 1989-10-13 Pitney Bowes Plc Appareil de manutention de papiers
US5097654A (en) * 1991-02-19 1992-03-24 Antonio Latsounas Envelope filler and sealer
WO2016026712A1 (de) * 2014-08-22 2016-02-25 Kern Ag Kuvertiervorrichtung
CN107148359A (zh) * 2014-08-22 2017-09-08 科恩股份公司 插入系统
US20170267017A1 (en) * 2014-08-22 2017-09-21 Kern Ag Inserting system
CN107148359B (zh) * 2014-08-22 2019-09-17 科恩股份公司 插入系统
US10583684B2 (en) * 2014-08-22 2020-03-10 Kern Ag Inserting system

Also Published As

Publication number Publication date
BE387461A (enrdf_load_stackoverflow)
FR733124A (fr) 1932-09-30
GB374355A (en) 1932-06-09
CH153222A (de) 1932-03-15

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