Abstract: In a web feed apparatus wherein a section of the web is maintained at a higher tension while accurately metering the feed of the web at a relatively lower tension, and wherein means are provided to isolate the low tension metering function from the higher tension section by anterior snubbing rolls, the web tension is controlled by modifying the gain produced by the snubbing rolls and feeding back any increase in tension from the lower web tension level to the higher web tension level. Such a gain is modified by controlling the total angle of wrap of the web about the snubbing rolls, or by varying the coefficient of friction between the web and the snubbing rolls.

Abstract: Disclosed are normally substantially colorless chromogenic oxime ether of Michler's hydrol color precursor compounds having the following generic structural formula: ##STR1## wherein R.sub.1 and R.sub.2 each represents an organic radical. More specifically, R.sub.1 may represent either a lower alkyl group having from one to five carbon atoms or a phenyl group and R.sub.2 may represent a substituted or unsubstituted phenyl group having the following formula: ##STR2## wherein R.sub.3 and R.sub.4 each separately represents either a hydrogen atom, a chlorine atom or a nitro group. These compounds are initially substantially colorless and are capable of becoming highly colored when brought into reactive contact with many conventional Lewis acid materials or the like. Accordingly, these compounds are highly useful as a component of pressuresensitive copying papers.

Abstract: A series-connected business form adapted to be fed through the printing means of a business machine includes a continuous locating web folded along opposite margins to define longitudinal flaps which are secured to the underlying web, feed holes in the flaps and in the underlying web arranged to engage a feed means of the business machine, transverse perforations in the web and flaps for separating the form into individual units, individual sheets associated with the units having first opposed edges underlying the flaps and second opposed edges lying adjacent the lines of perforations, and glue spots along the transverse lines adjacent the second edges for immobilizing the sheets against longitudinal shifting.

Abstract: A series-connected business form is adapted to be fed through the printing means of a business machine and includes a continuous pair of superimposed outer webs each having feed bands including rows of spaced superimposed feed holes extending along opposite marginal edges thereof for engagement with the feed means of the business machine so that the form may be thereby advanced into and past the printing means. At least one intermediate web is disposed between the outer webs with transfer material lying on opposite sides of such intermediate web, and the intermediate web is secured to only one of the outer webs.

Abstract: A series of detachable business forms are adapted to be fed through the printing means of a business machine and each include a continuous pair of superimposed outer webs having spaced transverse lines of weakening to facilitate detachment. Intermediate webs forming a booklet disposed between the outer webs are secured to only one of the outer webs and are diecut transversely at the spaced transverse lines so that separation occurs only at the outer webs. At the end of a printing run the second to the last printed form may be separated from the last printed form along a longitudinal separation line of the one web, and the one web and its attached booklet of the last printed form may be removed from the other web thereof so that such other web is left as a drive web for the unprinted forms.

Abstract: Articles in the form of multilayered cards which contain information invisibly printed between a support member and a top member. By rubbing the exposed surface of either the support member or the top member, the information is developed into visible information which can be viewed either through one of the members, i.e., when one of the members is composed of a transparent material, or by physical separation of the members. The multilayered cards are structured similarly to multilayered carbonless copy papers. The information is protected from premature, unauthorized development and detection due to the fact that development thereof creates a chemical change in the multilayered card which cannot be reversed.

Abstract: A transfer sheet of a transfer sheet assembly for use in an Autographic Register System has a coating which embodies a colorless color former. The coating is porous and the colorless color former is retained in the pores of the coating until autographic writing is applied to the uppermost record web of the assembly whereby the colorless color former is squeezed out of the coating onto the upper face of the next record web of the assembly. The record webs of the assembly have a developing receptive nature to develop the color of the squeezed out color former. The area of development corresponds to the autographic writing applied to the uppermost sheet.

Abstract: Disclosed are high solids content bentonite clay coating formulations for use in the production of receiver sheets for carbonless copying systems. The formulations comprise an acid-leached bentonite-type clay and an inactive clayey material such as chalk or a mixture of chalk and kaolin. The formulations are effective for use in the "on machine" blade coating of a paper substrate to more efficiently produce receiver sheets for carbonless copy systems.

Abstract: A unit set or assembly of several superimposed parts form a mailer without a stub, folded and detachable glue flaps on the top part underlying and being secured to the bottom part. A three-part mailer construction is formed wherein the intermediate part is secured to the bottom part as the adhesive on one of the flaps extends through holes provided in the bottom part. Removal of the top part therefore leaves the intermediate and bottom parts intact, or removal of the intermediate part leaves the top and bottom parts interconnected, or removal of the top and intermediate parts separates each of the parts from one another.A minimum four-part mailer construction is also provided of superimposed parts with the first part having the folded and detachable glue flaps underlying and secured to the fourth part.

Abstract: A set of carbonless recording sheets wherein each of the individual sheets of the set may be separately stacked with sheets which are identical thereto without the danger of offsetting or inadvertent reproduction occurring through that stack. The sheets become operative only when assembled into the manifolded set. The central, intermediate sheets of the manifolded set are each coated front and back with respective chemicals which are incapable of reacting with one another to produce a color. The set includes at least two different types of intermediate sheets, one of which has a front coating capable of reacting with the back coating of the other to produce a color and vice versa.

Abstract: An apparatus is provided for the application of patches or other sheets of material to a moving continuous web after adhesive is applied to selected portions thereof. The patches are burst from a web of patch material along spaced cross lines of perforations, and are transferred on to the moving web so as to overlie the adhesive thereon. Two pair of spaced rolls rotatable at relatively different speeds effect bursting, with one of such pair of rolls functioning to both meter the web of patch material and to apply the cross lines of perforations. One of the other pair of rolls serves to transfer the patches on to the moving web by means of air chambers first subjected to vacuum pressure for retaining the patches on to the circumferential surface of such roll, and thereafter subjected to positive air pressure for depositing the patches in place on the moving web.

Abstract: A unit set or assembly of several superimposed parts form a mailer without a stub, folded and detachable glue flaps being provided respectively along opposite sides of the first and second parts from the top, the flaps underlying and being secured to the last or bottom part of the assembly. Three-part or four-part mailer constructions are provided wherein the topmost part comprises a cover ply which, when removed, permits the assembly to be used as a mailer since the second part is secured to the fourth part in a four-part construction by means of glue from the first part flap extending through holes provided in the third part to thereby secure the second and fourth parts together. In the three-part construction, holes are provided in the bottom part so that the glue from the first part flap may extend therethrough so as to secure the second and third parts together.

Abstract: An apparatus to effect longitudinal plow folding and subsequent heat sealing of previously computer printed continuous business forms stationary includes a folder and a plurality of elongated heating ribbons disposed parallel to the direction of web travel in spaced apart parallel relationship and being convexly curved for supporting the continuous web passing thereover. Hot melt adhesive applied during manufacture of the stationary is disposed between the plies of the folded-over web, to be locally heated through the web as it lays against, and advances directly over, the multiplicity of parallel heating ribbons. Upon exiting the heater bed, a sandwich platen is provided to maintain the plies in intimate contact, while removing heat from the web and adhesive to bond the plies at each of the multiplicity of spots so heated. The folded and sealed web may then be processed by conventional bursting into individual sealed documents, for mail processing or confidential distribution.

Abstract: Disclosed are high solids content bentonite clay coating formulations for use in the production of receiver sheets for carbonless copying systems. The formulations comprise an acid-leached bentonite-type clay and an inactive clayey material such as chalk or a mixture of chalk and kaolin. The formulations are effective for use in the "on machine" blade coating of a paper substrate to more efficiently produce receiver sheets for carbonless copy systems.

Abstract: A unit set or assembly of multiple plies includes superimposed top, intermediate and bottom plies as well as a cover ply disposed over the top ply. A flap is removably connected to this cover ply along the line of weakening and underlies the bottom ply. First and second axially aligned holes of different sizes are respectively provided in the bottom and intermediate plies, the size of the bottom ply holes being less than the size of the intermediate ply holes. Adhesive is provided on the flap for securing the top ply thereto, such adhesive extending through the intermediate ply holes. The size difference between the axially aligned holes defines portions of the bottom ply which serve to mask the intermediate ply holes so as to confine the cross-sectional size of the adhesive, which extends therethrough, to the smaller size of the bottom ply holes.

Abstract: Sets of manifold business forms are coated on selected surfaces thereof with chemicals which are capable of reacting with each other to produce a colored mark. In one arrangement at least one intermediate sheet is coated on one surface with a composition of a record-developing material (which is generally solid) and a non-compatible color precursor (which is generally in the form of a microencapsulated liquid) to thereby function as both a record-receiving and a color-transfer surface upon reacting with the coating of at least another separate sheet of the set containing another compatible color precursor and/or another record-developing material on the surface thereof. In another arrangement, some of the sheets are coated front and back with a record-developing material, while others are coated front and back with a microencapsulated color precursor.

Abstract: Variable alpha/numeric data is printed by a plurality of ink jets and registered in aligned relationship with fixed data printed on a moving web in response to a first time dependent signal representative of the position of the alpha/numeric data. A plurality of successive secondary time dependent signals are produced by delay means responsive to the first time dependent signals for controlling a plurality of controller means each responsive to a respective one of the secondary time dependent signals for independently generating print control signals, and at least one of the controller means is responsive to the first time dependent signal. The plurality of ink jets is controlled by means responsive to the plurality of print signals. The first time dependent signal may also be representative of the speed of the moving web.

Abstract: A sealed envelope is pre-stuffed with at least one insert sheet which is positively held in place against any shifting movements relative to the envelope by retention elements attached only to the envelope and in abutting engagement with marginal edges of the insert sheets.

Abstract: A web transport arrangement is devised for transporting a web material along a web path. The web material is supplied by a variable feed mechanism to a processing mechanism for processing the web. The web material while being metered by the feed mechanism is maintained by the mechanism under a low tension although the web may be maintained under a high tension during subsequent processing operations. A control circuit automatically compares the feed rate of the web through the low tension feed area to the rate of the processing mechanism operative on the web within the processing area and provides for any necessary modification of the infeed rate in order to synchronize them.

Abstract: Sealed envelopes of a continuous envelope assembly each include front and back panels and a return envelope contained therein. The return envelope is free of attachment to the sealed envelope along all its marginal edges, and is constructed as having a protective portion overlying its flap with such portion being attached to the sealed envelope so as to be retained therewith upon extraction of the return envelope. The return envelope is immobilized within the sealed envelope by retention chips in abutting engagement with the marginal edges of the return envelope. These retention chips are secured to the outer envelope and are defined by severed extensions of the return envelope.