54results about "Book binding" patented technology

A cutting device that cuts an edge portion of a sheet bundle having plural sheets stacked, includes: a cutting blade; a paddle provided on a side of the cutting blade, which removes chips attached to the cutting blade by rubbing a side surface of the cutting blade; a controller which controls drive of the paddle. The controller includes a judging section which compares a length of the chips in a direction perpendicular to an edge side of the sheet bundle to be cut by the cutting blade with a predetermined length that has been preset. When the length of the chips is shorter than the predetermined length, the controller makes the paddle to rotate in a predetermined direction, and when the length of the chips is longer than the predetermined length, the controller makes the paddle to rotate in a reverse direction.

A sheet processing apparatus includes a folding apparatus 556 which folds a sheet bundle, a switching portion which switches a nipping pressure by the folding apparatus 556 against the sheet bundle, and a flattening apparatus 700 which presses and flattens a folded-back portion of the folded sheet bundle, and the switching portion operates such that the nipping pressure by the folding apparatus 556 against the sheet bundle when the flattening processing is executed becomes weaker than that of the folding apparatus 556 when the flattening processing is not executed.

A method is provided for identifying a restriction endonuclease, which includes the steps of (a) screening a target DNA sequence for the presence of known methylase sequence motifs, (b) identifying any open reading frames which lie close to the methylase sequence motifs screened in step (a), and (c) assaying the protein products of these open reading frames for restriction endonuclease activity.

Methods for identifying isoschizomers of known restriction endonucleases, which isoschizomers possess a desired physical property, such as thermostability, are also provided by the present invention, as are several novel restriction endonucleases isolated from M. jannaschii, MjaIII and MjaIV. Additionally, a gene was identified that encoded a previously observed endonuclease activity, designated MjaII.

Also provided by the present invention are vectors suitable for cloning a DNA sequence encoding a cytotoxic protein, via independent transcription promotors which may be selectively controlled by several conditions. A method for producing these cytotoxic proteins using such vectors is also provided, as are stable clones of PacI and NlaIII.

There is a need to provide a sheet post-processing apparatus capable of neatly squaring a booklet spine without any damage such as a wrinkle on the spine and an image forming apparatus having the sheet post-processing apparatus.

According to the sheet post-processing apparatus, a drive motor drives first and second pressing members. A circumferential velocity of the pressing member on a pressing surface pressed against the booklet spine is configured to be reverse to and greater than a moving velocity of a moving portion.

Trimming apparatus for books and similar materials are detailed. Dynamic variability of the apparatus allows sizes of successive materials to differ in two dimensions—both from spine to face and from head to foot. The result is a processing system with substantially greater utility than presently available, as the system may process respective materials of multiple different sizes without stopping the apparatus to adjust positions of the cutting implements.

Apparatus for introducing magnetic spirals into rows of neighboring perforations in the spines of stacks of overlapping sheets which are to form discrete calendars, memo pads or analogous commodities employs an elongated guide for a continuous magnetic coil spring. The coil spring is rotated about its longitudinal axis and is moved lengthwise so that its convolutions enter successive perforations of the row of perforations in the stack being held in the guide. The guide embodies or cooperates with magnets which maintain the convolutions of the coil spring in the path defined therefor by the guide. The magnets can be embedded in antimagnetic tubes forming part of or constituting the guide.

The invention discloses a semi-automatic bookblock rounding machine which comprises a rack, a rounding mechanism, a transferring track and a book output mechanism, wherein the transferring track, the rounding mechanism and the book output mechanism circularly operate under the control of a sensor, a book is transferred by the transferring track to the rounding mechanism, a slide block device drives rounding rollers to clamp the book, a worm and gear structure drives the two rounding rollers to rotate oppositely to round the book, the book output mechanism clamps the rounded book through a pneumatic finger to the book output device, and the operation is repeated. According to the roller type rounding principle, the advantages of machine, electricity and air are fully used, so that the complex working principle is achieved on the basis of simplifying the mechanical structure of the whole machine, the machine can round 15 books at the most in one minute, an advanced PLC (Programmable Logic Control) automatic program is adopted for control, the size of a rounding arc on a bookblock is digitally processed, so that an author can conveniently and intuitively regulate the rounding arc of the book, and the rounding requirements of the books with different thicknesses can be well met.

A device treats a side edge of the pile of a body to be printed which makes a cutting face move along the direction of movement and is provided with a tool head supporting a cutting ring which is rotated around a rotary shaft. A plurality of a treating member are arranged at the circumference of the cutting ring and the member has at least one cutting part which cuts the material in order. The cutting part has at least one cutting corner, turning to the material, which defines the cutting face. At least one of the treating member has at least one notching part which is turning to the material in view toward the axial direction and projecting across the cutting corner on the cutting face.

A cutting device includes a cutting unit and a pre-processing unit. The cutting unit performs fore-edge cutting processing and top-edge/tail-edge cutting processing in a state in which a blade inclines toward a paper surface of a booklet. The fore-edge cutting processing is to cut off a first edge part of the booklet parallel to a spine of the booklet. The top-edge/tail-edge cutting processing is to cut off a second edge part of the booklet perpendicular to the spine. Of the top-edge/tail-edge cutting processing, in first top-edge/tail-edge cutting processing in which the blade cuts the booklet from a side opposite to the spine, before the blade abuts the spine, the pre-processing unit makes a cut at a point of the spine along a cutting direction in which the blade cuts the spine, the point where the blade abuts the spine.