US2471482A - Means for creasing linings for books and for analogous purposes - Google Patents

Means for creasing linings for books and for analogous purposes Download PDF

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US2471482A
US2471482A US707242A US70724246A US2471482A US 2471482 A US2471482 A US 2471482A US 707242 A US707242 A US 707242A US 70724246 A US70724246 A US 70724246A US 2471482 A US2471482 A US 2471482A
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Prior art keywords
rollers
cylinder
creasing
books
linings
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US707242A
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French Lionel John Bry Rushent
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BOOK MACHINERY Co Ltd
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BOOK MACHINERY Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C9/00—Applying glue or adhesive peculiar to bookbinding
    • B42C9/02—Applying glue or adhesive peculiar to bookbinding for securing back linings, strips, ribbons or headbands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/24—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
    • B26D1/245—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter for thin material, e.g. for sheets, strips or the like

Definitions

  • This invention relates to improved means for producing a series of parallel creases or corrugations in fabric, paper or like readily foldable sheet material, and more particularly the invention is useful in connection with what is known as back stripping, an operation carried out in binding of books during which a strip of calico or other suitable material is lued as a lining to the spine of the book.
  • back stripping an operation carried out in binding of books during which a strip of calico or other suitable material is lued as a lining to the spine of the book.
  • the corrugations introduced into this lining provide the necessary extra material for the subsequent rounding and backing operation during which the strip lining resumes its original substantially smooth form, the corrugations being drawn out by the expansion of the book spine.
  • These corrugations enable the book to be spread during rounding and backin without fear of splitting the lining on the back of the book whilst giving the book back a greater degree of flexibility.
  • the object of the present invention is to provide a creasing or corrugating device in which variations in the depth or width of the creases or folds, and selection in quantity of the number of lines or creases or folds can be effected readily, and still further in which there is minimum friction or other opposition to the passage of the linen or other sheet material through the creasing or folding means.
  • Figure 1 a sectional side elevation of the appa- .ratus.
  • Figure 2 is a plan view.
  • Figure 3 is a detail sectional inverted plan view of one of the devices for retracting the rollers.
  • Figure 4 is a cross section through the support carrying the rollers
  • Figure 5 is a detail inside elevation of the set of rollers carrying fins which engage the fabric or paper strip.
  • the strip fabric or paper to be applied to the spines of the books 52 is indicated by the reference numeral 46 and it is fed from a supply spool 41 rotatin on a centre pin 48 carried by a bracket 49 which is attached to the body of the machine, along the top 53 of which are conveyed the books 52 to receive the adherently coated fabric.
  • is carried by the bracket 49 to tension the material, and the spool ll is adjustable translatively vertically, e. g. by a traversing screw with a hand wheel 41a carried by the bracket 49.
  • the creasing device comprises a cylinder I 2 which has an axial dimension greater than the pro-determined maximum width of work to be corrugated or creased, and its cylindrical wall has midway between its ends a flange 2 in the centre of which is formed a hollow boss 3 by which the cylinder is affixed to a shaft 4 journalled in bearings 5 and 6 in a central elongated boss I of a bracket 3 mounted for rising and falling movement under the control of a lever 9 fulcrumed midway between its ends on a lug l0 dependin from a plug l I fixed by screws 12 in the lower end of the boss 1.
  • the periphery of the cylinder is formed with a plurality of parallel V or similar section grooves l3 in which are engaged annular fins it formed on the peripheries of a plurality of rollers I5, these rollers being arranged in equi-distantly spaced relationship partly about the periphery of the cylinder so that they successively engage the work which is traversed between the cylinder I and the fins of the rollers, the arrangement being that, as shown in Figure 5, the first set of fins on a roller engaged by the work has a minimum number of peripheral fins, and the last roller has the maximum number, a convenient arrangement for the fins of these rollers being to progressively increase by one or other uniform number, the number of their fins in succession from one end roller to the other end roller.
  • each roller is supported for individual adjustment towards and away from the periphery of the cylinder.
  • each roller is mounted on a centre pin I6 which rotates at its end in heads I! formed on the ends of two parallel pins 18 which are opposed to the cylinder, these pins being bridged at their other ends by a transverse bar l9 fixed to the pins by threading on the pins nuts 20 and 2
  • a transverse bar l9 fixed to the pins by threading on the pins nuts 20 and 2
  • the framamember 42 iseadjusted up ori-down zi-relatively toithegtop ll to accommodate :the belts Each such 1 The rise and fall .-of the 43 and 43a, to the thickness of the books to be fed with the material. It will be apparent that adjustment of the frame member 42 will result in the cylinder I being adjusted axially up or down to wvarythewidth of periphery of .the drum disposed abovetheplane of the conveyor belt 43a.
  • the effective axial dimension of the cylinider l in use can be varied to suit different widths of books and corrugated fabric.
  • the cylinder :I can be :heated by :electric vresistanceelements 52 connected toa source OfzBlGC- trical energyby'brushes'53iengaging annular contact stripsM-and carried by an insulatedhousing -55tadapted to receive themecessaryleads.
  • cylinder with a plurality :of circumfer- 5 ential grooves and adapted to be rotated by the traction of the sheet material over its periphery, a plurality of freely rotatable rollers parallel with the cylinder, peripheral fins on the rollers engaged in said grooves to produce said creases, a support for said rollers partly surrounding the cylinder, spring means distinctive to each roller urging the rollers into said grooves, a device with each roller adapted to be actuated to retract each roller individually relative to the others from the work engaging position against the influence of said spring means and adapted to be actuated to free the rollers for return movement to the predetermined work engaging position by the reassertion of the spring means, and means controllable by the articles to be fed with the creased material to adjust automatically the cylinder and associated finned rollers axially as a unit to accommodate the position of the cylinder and rollers to the thickness of said articles.
  • a freely rotatable cylinder with a plurality of circumferential grooves and adapted to be rotated by the traction of the sheet material over its periphery, a plurality of freely rotatable rollers parallel with the cylinder, peripheral fins on the rollers engaged in said grooves, to produce said creases, a support for said rollers partly surround- 6.
  • each roller readily displaceably relatively to said support means combined therewith adapted to be manipulated to retract the rollers selectively from the predetermined creasing position and to return the rollers to such predetermined position
  • a bracket supporting the rotatable cylinder and the set of rollers with their support, a fixed guide in which said bracket is supported slidably along the axis of the cylinder, conveyor belts for translating the work into receiving engagement with the creased material, and means to adjust the cylinder carrying bracket automatically relative to said guide to raise and lower the cylinder along its axis to compensate for variations in the space occupied by the work between the conveyor belts.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Tyre Moulding (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

May 31, 1949. L. J. B. R. FRENCH MEANS FOR CREASING LININGS FOR BOOKS AND'FOR ANALOGOUS PURPOSES Filed Nov. 1, 1946 2 Sheets-Sheet 1 no 8 v 7 L A W- /7 n m H H m I Na MMVQ ATTOENEYS May 31, 1949.
Filed Nov. 1, 1946,
L. J. B. R. FRENCH MEANS FOR CREASING LININGS FOR BOOKS AND FOR ANALOGOUS PURPOSES 2 Sheets-Sheet 2 Patented May 31,. 1949 UNITED STATES PATENT OFFICE MEANS FOR CREASING LININGS FOR BOOKS AND FOR ANALOGOUS PURPOSES Application November 1, 1946, Serial No. 707,242 In Great Britain December 6, 1945 4 Claims.
This invention relates to improved means for producing a series of parallel creases or corrugations in fabric, paper or like readily foldable sheet material, and more particularly the invention is useful in connection with what is known as back stripping, an operation carried out in binding of books during which a strip of calico or other suitable material is lued as a lining to the spine of the book. With the device described the corrugations introduced into this lining provide the necessary extra material for the subsequent rounding and backing operation during which the strip lining resumes its original substantially smooth form, the corrugations being drawn out by the expansion of the book spine. These corrugations enable the book to be spread during rounding and backin without fear of splitting the lining on the back of the book whilst giving the book back a greater degree of flexibility.
The object of the present invention is to provide a creasing or corrugating device in which variations in the depth or width of the creases or folds, and selection in quantity of the number of lines or creases or folds can be effected readily, and still further in which there is minimum friction or other opposition to the passage of the linen or other sheet material through the creasing or folding means.
In order that the invention may be clearly understood and readily carried into effect, drawings are appended hereto illustratin an embodiment thereof, and wherein:
Figure 1, a sectional side elevation of the appa- .ratus.
Figure 2 is a plan view.
Figure 3 is a detail sectional inverted plan view of one of the devices for retracting the rollers.
Figure 4 is a cross section through the support carrying the rollers, and
Figure 5 is a detail inside elevation of the set of rollers carrying fins which engage the fabric or paper strip.
Referring to the drawings the strip fabric or paper to be applied to the spines of the books 52 is indicated by the reference numeral 46 and it is fed from a supply spool 41 rotatin on a centre pin 48 carried by a bracket 49 which is attached to the body of the machine, along the top 53 of which are conveyed the books 52 to receive the adherently coated fabric. A tension post 5| is carried by the bracket 49 to tension the material, and the spool ll is adjustable translatively vertically, e. g. by a traversing screw with a hand wheel 41a carried by the bracket 49.
The creasing device comprises a cylinder I 2 which has an axial dimension greater than the pro-determined maximum width of work to be corrugated or creased, and its cylindrical wall has midway between its ends a flange 2 in the centre of which is formed a hollow boss 3 by which the cylinder is affixed to a shaft 4 journalled in bearings 5 and 6 in a central elongated boss I of a bracket 3 mounted for rising and falling movement under the control of a lever 9 fulcrumed midway between its ends on a lug l0 dependin from a plug l I fixed by screws 12 in the lower end of the boss 1.
The periphery of the cylinder is formed with a plurality of parallel V or similar section grooves l3 in which are engaged annular fins it formed on the peripheries of a plurality of rollers I5, these rollers being arranged in equi-distantly spaced relationship partly about the periphery of the cylinder so that they successively engage the work which is traversed between the cylinder I and the fins of the rollers, the arrangement being that, as shown in Figure 5, the first set of fins on a roller engaged by the work has a minimum number of peripheral fins, and the last roller has the maximum number, a convenient arrangement for the fins of these rollers being to progressively increase by one or other uniform number, the number of their fins in succession from one end roller to the other end roller.
The rollers are of uniform axial dimensions, and each roller is supported for individual adjustment towards and away from the periphery of the cylinder. For this purpose each roller is mounted on a centre pin I6 which rotates at its end in heads I! formed on the ends of two parallel pins 18 which are opposed to the cylinder, these pins being bridged at their other ends by a transverse bar l9 fixed to the pins by threading on the pins nuts 20 and 2| to engage opposite faces of such bar. Such a construction of parallel pins and cross bar provides for each roller, in effect a shackle or yoke for carrying the appropriate rollers, and the two pins I8 of each shackle or yoke are slidable through bores formed in the upper and. lower flanges or increased thickness parts 22 of a part annular or segmental bar 23 disposed in concentric relationship about part of the periphery of the cylinder, sothat the finned rollers are interposed betweenthe inner arcuate side of this bar and the periphery of the cylinder. One end of this arcuate bar 23 is carried on a pivot pin 24 fixed in the aforesaid bracket 8, and the other end is secured in position by a spring loaded plunger or bolt 25 having a head 25a and engaged in a hole 26 in such bracket 8,
bolt comprising a rectangular *ortotherqsuitably shaped block 21a in which rotatesriazpini t formed with a flat 29 on one end normally abutting against the bar I9 the pin .tfibeingsecured in position by a collar 30 fixedby a radiatinglfinger piece 3| by which the pin can be partially rotated to cause the part cylindrical surface 3250f.
the end of the pin to engage the appropriate cross-bar i9 connectingtheadjacent pairi'ofparallel lpins iii whereby: the appropriate ,pairof pins are retractedrelatively to the cylinderso as to disengage the fins lei-of theroller ;i 5 carried thereby from thegrooved surface of the cylinder. 'Coiled compression :springs .33 on the pins return the rollers to :the noperative :position.
The depending boss -'I 'inwhich arelocated upper andlowerbearings Band 6 for the journals .of .the cylinder shaft 4 slides through asleeve when the lever 9 is articulated, vthe periphery of the sleeve being formed with a flange -35ab ut' .tinguponrthe .;bracket :35111 which the sleeve is zfitted, :screws :31 ifixing the guide sleeve .34 relatively to the bracket. rbracket 8is due to the lever-.9 being connected atzone end -by'a link 38- -to'an arm -39 on the flange .375 and :reeeiving :motion ;at :its other end by the :push-pull action-of'a vertical rodAfl connected at itslowerlendrto the leverand-at-its upper end-to 'a i-bracket ll'l projecting from a framezmember 42 ,formingipart of :means :supporting ,pulleys (not sshown) over which-is fed an endlessconveyoribelt, :only-thelowertrack "4310f which is-shown. p-
:posedto the lower track of:b,elt-43 is aEco-operrating conveyor belt, -,only the upper track 143a ,of EWhiCh JiSIShOWn.
:The *mechanism supporting the upper @endless conveyor belt 43 is adjustableuverticallyito permit of "the ".variationznecessary to accommodate 'difiierentithicknesses of cboloks and since the variaition-required;fonanyparticular thickness ofrbooks iiS exactly-double theWariation ofnposition' required :by ;the strip or ilining to :be applied, :the alink 19 -is gpivotedzas aforesaid -=in its centre so that 'the cylinder I audits-supporting mechanism. is moved v-;exa1ctly-.onehalf .of the amount :over'which part etiltisxmoved.
' The booksrare fed in theqdesiredrdirection along lthe top 25.0 of :the body of the machine by being gripped between the -:,opp.osed tracks :of these two -conveyor: belts andiasgthey rpass theaforesaid-strip {creasingmeans:their-spinesghavethecreased-fab- :ric fedron totthemrin known mannenthe creased zfiabricEbeing-guided awayzfrom' the'cylinder I. over asguiding barrelrAdyhavingrtheisame axial dimen- :sions and arrangement of grooves as the cylinder :1 so'that-the ,creasings :of the fabric are :notydeaformed. {During the travel of the creased material :from the cylinder l :to the barrel -44 an ad- "hesive =is sprayed-or-wipedon-to the fabric, the aadhesive applying means being "indicated dia- :-.grannnatica1ly1at 45.
:The framamember 42 iseadjusted up ori-down zi-relatively toithegtop ll to accommodate :the belts Each such 1 The rise and fall .-of the 43 and 43a, to the thickness of the books to be fed with the material. It will be apparent that adjustment of the frame member 42 will result in the cylinder I being adjusted axially up or down to wvarythewidth of periphery of .the drum disposed abovetheplane of the conveyor belt 43a. Thus the effective axial dimension of the cylinider l in use can be varied to suit different widths of books and corrugated fabric.
iBy=-providing the ilms on the rollers in such =manner that-they progressively increase in number with respect -.to their rollers from one end of thetset of rollers toithe other, a considerable dim- :inution linifriction is ensured by reason of the progressive buildup of the creasing of the material as it passes between the rollers and the cyliinfcler. Stilljfurthenby providing means for selectively bringing the finned rollers into and out of operation the effective width of the material to be creased can be varied.
The cylinder :I can be :heated by :electric vresistanceelements 52 connected toa source OfzBlGC- trical energyby'brushes'53iengaging annular contact stripsM-and carried by an insulatedhousing -55tadapted to receive themecessaryleads.
;I- claim:
,1. Inapparatus for feeding lfoldableJ-sheet material such as linen or. paper to articles to which the sheet material is united and for producing in the sheet material creasesvextending.lengthwiseof .the :direction. of feed of the 'material, a freely -ro tatablecylinder with a plurality of circumferenatial grooves and :adapted .to :be rotated .-by the :traction-pf the'sheet'material:over;its:periphery,ia plurality of freely rotatable TOHBISZDQIBJlBlM/ith the-cylinder,peripheralrfins onithe rollers engaged :inrsaid grooves to producesaid :creases, a' support :for isaid rollers :partly surrounding the cylinder meanstsupporting each-roller sreadily displaceabl-y relatively tossaidisupportuand means combined :therewith .radapted the "manipulated to retract ;the :rollers :selectively :from :the predetermined creasing:positionaandto .returnithe rollersl to such predetermined position.
:2. In 1 apparatusfQr :"feeding foldablei sheet mafterial -such :as'linen or paper to. artic1es to which the sheet material is' united and "for producing in the sheet material creases extending lengthwise-of the.direction"of feed *of "the material, a freely rotatable-cylinder with a plurality of circumferential grooves and adapted to f be rotated by the traction of the -s'heet material-over'its periphery, -a plurality of freely rotatable rollers parallel with the cylinder peripheral fins on the rollers engaged in said grooves to produce said 'creases, a support for said rollers partly sur- *-rounding -the "cylinder, means supporting each -ro1ler readily displaceably relatively to said support means combined therewith adapted to be manipulated to retract'the rollers selectively from "the predetermined creasing positionand to return the rollers to such predetermined position, xand means ,controllableby "the articles to be fed lwiththe. creased 'materialto adjust automatically the cylinder and associated finned rollers axially ,as :a unit to accommodate the position of the cylinder and rollers to the thickness vof said articles.
3. In apparatus for feeding ioldable sheet, material.suchiasilinenlor paperito articles .to which "the sheet material is -united and for ,producing inthe sheet materialicreases extendingilengthwise of the direction of vfeedof .the material, agfreely metatable. cylinder .with a plurality :of circumfer- 5 ential grooves and adapted to be rotated by the traction of the sheet material over its periphery, a plurality of freely rotatable rollers parallel with the cylinder, peripheral fins on the rollers engaged in said grooves to produce said creases, a support for said rollers partly surrounding the cylinder, spring means distinctive to each roller urging the rollers into said grooves, a device with each roller adapted to be actuated to retract each roller individually relative to the others from the work engaging position against the influence of said spring means and adapted to be actuated to free the rollers for return movement to the predetermined work engaging position by the reassertion of the spring means, and means controllable by the articles to be fed with the creased material to adjust automatically the cylinder and associated finned rollers axially as a unit to accommodate the position of the cylinder and rollers to the thickness of said articles.
4. In apparatus for feeding foldable sheet material such as linen or paper to articles to which the sheet material is united and for producing in the sheet material creases extending lengthwise of the direction of feed of the material, a freely rotatable cylinder with a plurality of circumferential grooves and adapted to be rotated by the traction of the sheet material over its periphery, a plurality of freely rotatable rollers parallel with the cylinder, peripheral fins on the rollers engaged in said grooves, to produce said creases, a support for said rollers partly surround- 6. ing the cylinder, means supporting each roller readily displaceably relatively to said support means combined therewith adapted to be manipulated to retract the rollers selectively from the predetermined creasing position and to return the rollers to such predetermined position, a bracket supporting the rotatable cylinder and the set of rollers with their support, a fixed guide in which said bracket is supported slidably along the axis of the cylinder, conveyor belts for translating the work into receiving engagement with the creased material, and means to adjust the cylinder carrying bracket automatically relative to said guide to raise and lower the cylinder along its axis to compensate for variations in the space occupied by the work between the conveyor belts. LIONEL JOHN BRYANT RUSHENT FRENCH.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,627,966 Goodlett May 10, 1927 1,644,416 Crooks Oct. 4, 1927 2,090,796 Kitcat Aug. 24, 1937 2,107,485 Liebowitz Feb. 8, 1938 2,158,087 Rowe et a1 May 16, 1939 2,414,739 Heygel Jan. 21, 1947 2,425,207 Rowe Aug. 5, 1947
US707242A 1945-12-06 1946-11-01 Means for creasing linings for books and for analogous purposes Expired - Lifetime US2471482A (en)

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GB33078/45A GB604865A (en) 1945-12-06 1945-12-06 Improved means for creasing linings for books and for analogous purposes

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577568A (en) * 1948-05-01 1951-12-04 Florez Company Inc De Plastic binding of hard cased books
US2782056A (en) * 1954-09-21 1957-02-19 Donnelley & Sons Co Book binding

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1097407B (en) * 1959-01-29 1961-01-19 Anna Maria Schmitz Geb Kautz Method for producing book bindings
GB2399056A (en) * 2003-03-06 2004-09-08 Graham Harris Card creasing device and strip
CN102009292B (en) * 2010-05-31 2013-12-11 无锡恒富科技有限公司 Steel belt wheel frame mechanism of digital control cutting machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1627966A (en) * 1920-04-17 1927-05-10 Arkell Safety Bag Co Apparatus for operating on paper and other fabrics
US1644416A (en) * 1923-02-05 1927-10-04 Belmont Packing & Rubber Compa Machine for folding packing and the like
US2090796A (en) * 1934-08-25 1937-08-24 Kitcat Alfred James Binding of books
US2107485A (en) * 1936-07-11 1938-02-08 Trubenizing Process Corp Process and apparatus for adhesively uniting plies of fabric material
US2158087A (en) * 1932-07-15 1939-05-16 Paper Service Co Apparatus for imparting stretchability to webs
US2414739A (en) * 1942-11-11 1947-01-21 Ecusta Paper Corp Combination ribbing and slitting machine
US2425207A (en) * 1940-02-19 1947-08-05 Cincinnati Ind Inc Creping corrugated papers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1627966A (en) * 1920-04-17 1927-05-10 Arkell Safety Bag Co Apparatus for operating on paper and other fabrics
US1644416A (en) * 1923-02-05 1927-10-04 Belmont Packing & Rubber Compa Machine for folding packing and the like
US2158087A (en) * 1932-07-15 1939-05-16 Paper Service Co Apparatus for imparting stretchability to webs
US2090796A (en) * 1934-08-25 1937-08-24 Kitcat Alfred James Binding of books
US2107485A (en) * 1936-07-11 1938-02-08 Trubenizing Process Corp Process and apparatus for adhesively uniting plies of fabric material
US2425207A (en) * 1940-02-19 1947-08-05 Cincinnati Ind Inc Creping corrugated papers
US2414739A (en) * 1942-11-11 1947-01-21 Ecusta Paper Corp Combination ribbing and slitting machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577568A (en) * 1948-05-01 1951-12-04 Florez Company Inc De Plastic binding of hard cased books
US2782056A (en) * 1954-09-21 1957-02-19 Donnelley & Sons Co Book binding

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DE843693C (en) 1952-07-10

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