Slide calculator
OwnerHoward M. Bromberginventor
Life of this patent
Estimating the term…
Abstract
A sheet of two contiguous detachable leaf members is folded and separated to form slide and sleeve components of the calculator. Fold lines in the sheet are formed parallel to a separation or tear line that divides on leaf member from the other leaf member. In assembling the slide calculator the leaf members can be separated before or after the folding operation. In various embodiments of the invention an information readout is provided on reverse sides of the calculator including one embodiment wherein the printed format of the slide and sleeve components is applied to one surface only of the respective leaf members. The slide component can be formed of two or more generally rectangular elongated slide segments folded into overlapping disposition, with data applied to each side of the slide segments.
Claims10
A slide construction comprising a flexible, foldable sleeve component formed of at least two generally rectangular elongated sleeve segments continuous with respect to each other along an elongated sleeve fold line, said sleeve segments being folded along said sleeve fold line into overlapping substantially flat disposition and including means for maintaining said overlapping segments together such that said sleeve segments have a generally closed cross-sectional periphery with predetermined inside cross-sectional dimensions, a flexible, foldable slide component formed of at least two generally rectangular elongated slide segments continuous with respect to each other along an elongated slide fold line, said slide segments being folded along said slide fold line to place said slide segments into overlapping substantially flat disposition wherein said overlapped slide segments have predetermined outside cross-sectional dimensions less than the corresponding inside cross-sectional dimensions of said sleeve component to permit accommodation of said folded slide component in said folded sleeve component, wherein said elongated slide fold line is parallel to said elongated sleeve fold line, for relative slidable movement between said components and wherein first and second sleeve data panels are provided on respective first and second outside surfaces of said two sleeve segments and first and second slide data panels are provided on respective first and second outside surfaces of said two folded slide segments, said slide construction further including means for matching said first sleeve data panel with said first slide data panel and said second sleeve data panel with said second slide data panel to indicate positioning of said sleeve in said slide for cooperation between said first sleeve data panel and said first slide data panel, and cooperation between said second sleeve data panel and said second slide data panel, and wherein third and fourth slide data panels are provided on respective first and second inside surfaces of said two folded slide segments, said matching means being provided on said third and fourth slide data panels for matching said third and fourth slide data panels with respective one of sai first and second sleeve data panels, said slide component being foldable in a reverse direction to reverse the positions of said inside and outside surfaces to indicate positioning of said sleeve in said slide for cooperation between one of said third and fourth slide data panels with one of said first and second sleeve data panels, and cooperation between the other of said third and fourth slide data panels with the other of said first and second sleeve data panels.
A slide construction comprising a flexible, foldable sleeve component formed of at least two generally rectangular elongated sleeve segments continuous with respect to each other along an elongated sleeve fold line, said sleeve segments being folded along said sleeve fold line into overlapping substantially flat disposition and including means for maintaining said overlapping segments together such that said sleeve segments have a generally closed cross-sectional periphery with predetermined inside cross-sectional dimensions, a flexible, foldable slide component formed of at least two generally rectangular elongated slide segments continuous with respect to each other along an elongated slide fold line, said slide segments being folded along said slide fold line to place said slide segments into overlapping substantially flat disposition wherein said overlapped slide segments have predetermined outside cross-sectional dimensions less than the corresponding inside cross-sectional dimensions of said sleeve component to permit accommodation of said folded slide component in said folded sleeve component, wherein said elongated slide fold line is parallel to said elongated sleeve fold line, for relative slidable movement between said components and wherein said slide component has a third elongated slide segment continuous with one of said two slide segments along a second slide fold line parallel to said first slide fold line, said third elongated slide segment being folded along said second slide fold line to place said third slide segment in overlapping relationship with said two folded slide segments to form a substantially flat slide component, and wherein said slide component includes a total of six slide data panels on opposite surfaces of said three slide segments and is foldable into three different arrangements to provide three different combinations of paired data panels, each said combination of paired data panels having an operative folded position wherein one data panel of said pair in said operative folded position faces one of said sleeve segments and the other data panel of said pair in said operative folded position faces the other said sleeve segment, and the other two paired combinations of data panels are sandwiched between the operative paired data panels when the folded slide component is accomodated in the folded sleeve component.
Dependencies are inferred from the claim text.