US1335221A

US1335221A - Signature-handling device

Info

Publication number: US1335221A
Application number: US233951A
Authority: US
Inventors: Christensen Martin
Original assignee: CHRISTENSEN MACHINE CO
Current assignee: CHRISTENSEN MACHINE CO
Priority date: 1918-05-11
Filing date: 1918-05-11
Publication date: 1920-03-30
Anticipated expiration: 1937-03-30

Description

v M.- CHRISTENSEN. SIGNATURE HANDLING DEVICE.

APPLICATION FILED MAY :1, 1918.

m 0 m 4 s M n Mm 108 2 m m a P M. CHRISTENSEN. SIGNATURE HANDLING DEVICE;

APPLICATION FILED MAY II, 1918.

- 1,335,221. I I Patented Mar.30 ,1920.

2 SHEETS-SHEET 2.

To all whom it mayconcem:

'onrran STATES PATENT OFFICE.

MARTIN CHRISTENSEN, or RACINE, Wisconsin, hssreivca '10 CHRISTENSEN MACHINE COMPANY, OF moms, WISCONSIN, A .oonroa arronor WISCONSIN.

SIGNATURE-HANDLING,DEVICE.

I Application filed May 11, 1918. Serial No. 233.951. i

Be it known that I, MARTIN a citizen of the United States, and resident of Racine, in the county of Racine and State of WVisconsin, have inventednew and useful Improvements in Signature-Handling Devices, of which the following is a description, reference being had to the accompanying drawings, which are a part of thisspecification. I

I The invention relates to signature handling devices and more particularly to a feed table and its associated mechanism whereby the groups of signatures may be fed to the machine by a plurality of operators. I.

The invention is designed to provide a book-feeding table in which the books are disposed in radial guides so that a plurality of operators may serve the table and dispose the groups of signatures in the radial guides from which they are carried into the Ina-- chine, the arrangement increasing the working capacity of the individual operator with the result that the capacity of the bookstitching machine is greatly increased because OI the rapidity of feed of the collected groups of signatures to the mechanism for feeding the books to the stitchers.

The invention is further designed to provide new and useful improvements inthe construction of feed table shown in Letters Patent No. 1,297,444, issued to me March 18, 1919, the in'iprovements being in the provisions for adjusting the table for different sizes of books and in varying the feed or operation of the table and for alining the signatures.

The invention further consists in'the several features hereinafter set forth and'more particularly defined by'the claims at the conclusion hereof.

In the drawings:

Figure 1 is a plan view of the device embodying the invention, parts being broken away;

Fig. 2 is a section taken on the line 2-2 of Fig. 1;

Fig. 3 is a fragmentary detail view of the means for turning the table; and V Fig. 4 is a fragmentary detail view of the means for alining the signatures.

In general the device comprises a receiv-' ing table, means for intermittently turning the table; and. means for successively deliv- Specification of Letters Patent. Patented distance from each other.

Man sdiezo.

ering collected groups of signatures from the table to the book-stitching "machine With reference to the means for succes' sively delivering collected groups of signa tures from the table to the book-stitjching machine, a part which is designated generally by the numeral 3, attention is directed to: Letters Patent'No. 1,297,444, previouslyreferred to, which shows the means for sue cessively delivering the signatures from the:

tabletothe book-stitching machine, and as the subject matter of the present invention is directed more particularly. to the construction of the receiving table, further reference to the means for taking the signatures from the receiving table and delivering them to the machine is deemed unnecessary. The receiving table consists of a circular base 4 being centrally secured to a member 5 carried by a central post 6, which post is journaled in a frame 7, having brackets 8 to which receiving aprons 9 are secured to lie flush with the base 4 and at a quadrants The receiving table further consists of a plurality of radially disposed partitions or guide members 10 having outer tapered ends 11, and forming radially disposed pockets. In addition to the partitions 10 mounted upon the base 4, supplemental partitions 13 of corresponding shape are disposed in adjustable spaced relation to the partitions 10 by means of their connection through brackets 14 to a spider 15 which is adjustably mounted upon the post 6 by means of a threaded hub 16 for the spider engaging the threaded end 17 n of the post 6. Thus the partitions 13 are away from the partitions 10 depending upon the breadth of the signatures bein handled. The partitions 13 may be spaced nearer to or farther away from the partitions 10 by revolving the spider 15 upon the post 6 in the proper direction. .Thu's the

partitions

10 and 13 form spaced guides for radially disposed signatures upon the base 4. In placing the signatures upon the table means are provided for limiting the position to which the signatures may be moved inwardly in the guides, andthis is accomplished by means of adjustable. back stops, one for each pocket. Each of, these back stops consists of an angled plate 18, the

lower portion 1t) of which is provided was a plurality of apertures to receive pins 21, which; pins not only pass through one of the apertures. 20, but may also be inserted V in setsof radially alined spaced apart capertures 22, there being a set of apertures 22 to take care of each back stop.

. With the construction thus far described, the operators stationed adjacentthe aprons 9 place the groups of signatures into the" pockets 12 between the guides. 10 and 13,

pushing them in until the front edges of the signatures abut against the upper portion 23 0f the back stop 18,-the adjustment of the back. stops being made so as to permit the front portion 24L of the signatures to extend beyond the table ashort distance to be engaged by the previously referred to mechanism for" successively delivering thesignatures from thereceiving table to the stitch ing machine; Thus with this construction thevadjustment of the back stops and the adjustment of the

partitions

10 and 13 with re- 4 signatures tothe machine is similar to that of my Letters Patent previously referred to in that it consists of ratchet wheel 2% formed on the member 6 and engaged by a pawl 25 mounted upon a lever 26 which is, oscillated by a reciproeatmgrod 27, but the means for controlling the pawl is different.

In'this construction the means for controlling the pawl consists of a cam 28 journaled on the lever 26 cooperating with a cam roller 29 carried by the pawl 25, and further comprises means for intern'iittently rotating the cam 28 when desired, it being noted that the cam is provided with recessesf3O and projeotio'ns 31 so that when the roller 29 is in any one of the recesses 30 the pawl 25 is held 7 in engagement with one of the teeth of the a ratchet 24, so that when the cam 28 is turned to bring the projection 31 against the'roller 29, the pawl will be moved outwardly out of engagement with the ratchet wheel 24.

Unless the cam 28 is turned it will hold the pawl 25 in the position to engage the ratchet wheel 24 and the forward movement of the rod 27 will cause the pawl to move the ratchet wheel one tooth-thus turning the table'a partial revolution and then on the I backward movement of the pawl the table will remain at rest. Thus continued recipro- -cation of the rod 27 causes a step by step rotary movement of the table which is timed to bring one group of signaturesadjacent the feed fingers 3 of the feeder mechanism -to the book-stitching machine and during the period of restof the table the group of signatures presented to the machine are engaged by the fingers 3 and drawn into the machine as explained in my Letters Patent previously referred to. However, in bookstitching machines for ractical purposes the strokes of the feed ngers are'limite'd and in the case of a group of signatures of considerable length it is necessary to stop the feed of the table'so that'the feed fingers 3 may twice engage the signatures presented to them and remove them in two ope erations to the stitching machine. V I

To provide taper-mutin two operations of the feed fingers 3 in thecasew of long books or groups of signatures I have devised a means for stoppingthe rotary movement 7' of the table on alternateforward movements 7 ofwthe rod 27 and this is accomplished] by mechanism which rotates the cam 28 so that forevery other forward movement of the rod 27the cam 28 will be turned so that one of, itsprojections 31' moves the pawl 25' out of operative wheel 24. f

. This mechanism 7 consists of a spring pressed pawl 32 mounted on the bracket 33 which bracket isvadjustably secured to the table .7 by means of a bolt 34, said bracket adapted to be turned so as to abut against the stop 35 or thestop 36. Thecam 28 carries a ratchet wheel forward by a plurality of ci'rcumferentially arranged pins 37; The pawl 32 is normally held against'a stop pin 38 by a spring 39. When the bracket 33 is turned about the bolt 34 so that it abuts against the stop 35 as shown in Fig.7 1 the pawl 32 will be in i11 operative position and the cam 28 will be engagement with the I operated as previously described to impart for operating the cam 28 I a step by step rotation to the table during I every reciprocation of the rod 27. When 7 the bracket 33 is turned about the bolt 34' so that it abuts against the stop 36 then the pawl 32 is moved into the path of the" pins 37 of the cam 28 and under these conditions on the first forward movement of the rod 27 the pawl 25 being held by the cam 28 will turn the ratchet wheel 24 the distance of one tooth and the pawl 32 moves in betweentwo of the pins 37-. On the first rearward movement of the rod 27 the pawl 32 strikes one of these pins .37 and turns the 7 r cam 28 so as to move the roller 29 out of one of the depressions 30 and on to one ofthe projections 31, thus throwing out the pawl which'is held out on the next forward movement of the rod 27 so that no movement is imparted to the table, and on the next rearward movementthe pawl 32 strikes the next pin 37 and the cam 28 is turned tobring the roller 29 into one of the depressions 30 and thus permit the pawl25to again engage the ratchet 24. Thus on every other reciprocation of the rod 27 nomovement is imparted to the table and this :is used where the book is too long for the stroke of the feeder. I

,Theturning movement of thetableiis arrested by a band brake 40 and brake wheel 41 which is more specifically shown and described in the Letters Patent before referred to.

The means for alining the signatures while they are on the table consists of an angled rod 42 carried by a collar 43 which in turn is adjustably secured to the rod 27. The collar 43 is so set on the rod as to permit the rod 42 to strike against the rear edges of the signatures on the rearward movement of the rod 27 as shown in-Fig. 1 thus pushing the signatures against the back stop to aline them. The adjustment of the collar- 43 with respect to the rod 27 provides for handling groups of signatures of different lengths.

The construction above described thus embodies a table which will readily accommodate books of different sizes, a means for imparting either astep by step rotary movement to the table on every reciprocation of signature receiving pockets thereon, ad-

justable back-stops for the pockets, a plurality of guideways disposed above the table and registering with said pockets, and means for adjustably supporting the guideways at various heights above the table.

2. In a signature handling mechanism, the combination, with a table, of a plurality of radially disposed guide members mounted thereon to form radially disposed signature receiving pockets,,a plurality of radially disposed supplemental guide members adapted to be brought into line with the guide members on the table, and means for adjustably supporting said supplemental guide members at various heights above the table.

3. In a signature handling mechanism, the combination with a table provided with signature receiving pockets, of means for intermittently turning the said table including a reciprocating rod, and a member mounted on said rod and moved thereby into engagement with one of the edges of a group of signatures to aline them while on the table, and back stops forming the ends of said pockets and against whlch the other including a reciprocating rod, and means operated by said rod and engaging the outer ec ges of the signatures to aline the same.

5. In a signature handling mechanism, the combination of a revoluble table provided with a plurality of radially dis osed signature receiving pockets, means or normally imparting a step by step rotary movement to said table, and means for rendering said first named means inoperative during every other normal cycle of operation.

6. In a signature handling mechanism, the

combination of a revoluble table provided with a plurality of signature receiving pockets, means for normally impartin a step by step rotary movement to the table, and means for automatically rendering said first mentioned means operative only at predetermined intervals to vary the normal rotary movement of the table.

' 7 In a signature handling mechanism, the combination of a revoluble table provided with a plurality of radially disposed pockets, pawl and ratchet mechanism for normally imparting a step by step rotary movement to said table, tripping mechanism for the pawl to vary the normal rotary movement of the table, and means actuated by said pawl and ratchet mechanism for operating said tripping mechanism.

8. In a signature handling mechanism, the combination witha rotary feed table, pawl and ratchet mechanism 7 for normally imparting a step by step rotary movement to MARTIN CHRISTENSEN.