Abstract:
Apparatus for riveting unperforated layers of material supported on a counter-holder. The counter-holder has a recess for receiving the rivet shank such that the cross section of the recess in the area in which the closing head is formed is larger than the cross section of the rivet shank, and the depth of the recess is shorter than the portion of the rivet shank protruding from the layers.
Abstract:
An apparatus wherein a riveted connection is formed between two strips. A rivet is held in an upper die member or dolly directly above a lower die member having an opening therein. Superposed strips are positioned adjacent the lower die member covering the opening therein. Relative movement between the die members causes the body of the rivet to punch a hole through the superposed strips. The extending end of the rivet body is then deformed to form a closure head portion whereby the strips are rigidly connected.
Abstract:
A sound carrier is affixed where desired by the user onto a printed page of a book or the like and a sound reproducing unit is operatively engaged with the sound carrier by the user through the medium of visually locatable positioning means cooperatively carried by the sound carrier and the reproducing unit.
Abstract:
A door drive of a up and over door, sectional side or sectional ceiling door or sliding door, especially of a garage door, comprises at least one cylindrical guide tube supported against a ceiling or side wall, has a slide carriage arranged for movement along the guide tube, an endless traction element and a drive for opening and closing the door. The carriage is connectable with the door panel via a connecting rod. The ends of the traction element are secured together by means of a turnbuckle. For better support of the guide tube and for sampler connection or coupling of the traction element with the slide carriage, a number of mounting brackets are secured to the upper side of each guide tube for receiving support struts for mounting in the guide tube to the garage ceiling or wall. The slide carriage slides with a tubular portion along the guide tube. It has a continuous longitudinal slit on its upper side so that it can pass the brackets. The slide carriage has furthermore a lateral coupling element which can releasably be coupled with the turnbuckle. The turnbuckle comprises opposedly arranged a left-handed threads and a right handed threads, respectively, at each end for receiving anchor screws at the ends of the traction element permitting tensioning of the traction element.
Abstract:
A door drive of a up and over door, sectional side or sectional ceiling door or sliding door, especially of a garage door, comprises at least one cylindrical guide tube supported against a ceiling or side wall, has a slide carriage arranged for movement along the guide tube, an endless traction element and a drive for opening and closing the door. The carriage is connectable with the door panel via a connecting rod. The ends of the traction element are secured together by means of a turnbuckle. For better support of the guide tube and for sampler connection or coupling of the traction element with the slide carriage, a number of mounting brackets are secured to the upper side of each guide tube for receiving support struts for mounting in the guide tube to the garage ceiling or wall. The slide carriage slides with a tubular portion along the guide tube. It has a continuous longitudinal slit on its upper side so that it can pass the brackets. The slide carriage has furthermore a lateral coupling element which can releasably be coupled with the turnbuckle. The turnbuckle comprises opposedly arranged a left-handed threads and a right handed threads, respectively, at each end for receiving anchor screws at the ends of the traction element permitting tensioning of the traction element.
Abstract:
A sound-illustrated, bound book includes sound record areas in the form of a spiral sound groove each associated with individual pages. Adjustment perforations or embossments or engravements and switch-on safety elements, if provided, for a sound reproducing apparatus attachable in aligned position, are associated with each sound groove. It is suggested to provide the sound grooves with the adjustment perforations and the switch-on safety elements on separate double pages of plastic material, at best being semi-rigid, and bound in the book, inserted into the quaternia thereof, in order to permit more favorable production of the individual book pages and of the sound groove carriers and to prevent any obstruction when the book is read with a sound reproducing apparatus having a revolving pickup placed on the sound groove and to avoid too much bulging of the book, especially toward one side. The sound grooves may be provided at the front and back sides of the sound record pages so as to be disposed directly opposite each other. The adjustment perforations or engravements and embossments as well as the switch-on safety elements may be arranged symmetrically with respect to two orthogonal central axes of the sound grooves such that they will be in common for the oppositely disposed sound grooves. The switch-on safety elements are embodied by an upwardly protruding embossment and a downwardly protruding engravement located close to the embossment.
Abstract:
A sound-illustrated, bound book includes sound record areas in the form of a spiral sound groove each associated with individual pages. Adjustment perforations or embossments or engravements and switch-on safety elements, if provided, for a sound reproducing apparatus attachable in aligned position, are associated with each sound groove. It is suggested to provide the sound grooves with the adjustment perforations and the switch-on safety elements on separate double pages of plastic material, at best being semi-rigid, and bound in the book, inserted into the quaternia thereof, in order to permit more favorable production of the individual book pages and of the sound groove carriers and to prevent any obstruction when the book is read with a sound reproducing apparatus having a revolving pickup placed on the sound groove and to avoid too much bulging of the book, especially toward one side. The sound grooves may be provided at the front and back sides of the sound record pages so as to be disposed directly opposite each other. The adjustment perforations or engravements and embossments as well as the switch-on safety elements may be arranged symmetrically with respect to two orthogonal central axes of the sound grooves such that they will be in common for the oppositely disposed sound grooves. The switch-on safety elements are embodied by an upwardly protruding embossment and a downwardly protruding engravement located close to the embossment.
Abstract:
A door drive of a up and over door, sectional side or sectional ceiling door or sliding door, especially of a garage door, comprises at least one cylindrical guide tube supported against a ceiling or side wall, has a slide carriage arranged for movement along the guide tube, an endless traction element and a drive for opening and closing the door. The carriage is connectable with the door panel via a connecting rod. The ends of the traction element are secured together by means of a turnbuckle. For better support of the guide tube and for sampler connection or coupling of the traction element with the slide carriage, a number of mounting brackets are secured to the upper side of each guide tube for receiving support struts for mounting in the guide tube to the garage ceiling or wall. The slide carriage slides with a tubular portion along the guide tube. It has a continuous longitudinal slit on its upper side so that it can pass the brackets. The slide carriage has furthermore a lateral coupling element which can releasably be coupled with the turnbuckle. The turnbuckle comprises opposedly arranged a left-handed threads and a right handed threads, respectively, at each end for receiving anchor screws at the ends of the traction element permitting tensioning of the traction element.