diff --git a/src/ccmain/osdetect.cpp b/src/ccmain/osdetect.cpp
index 7e4011415b..99a5362c01 100644
--- a/src/ccmain/osdetect.cpp
+++ b/src/ccmain/osdetect.cpp
@@ -193,11 +193,9 @@ static void remove_nontext_regions(tesseract::Tesseract *tess,
 int orientation_and_script_detection(const char* filename,
                                      OSResults* osr,
                                      tesseract::Tesseract* tess) {
-  STRING name = filename;        //truncated name
-  const char *lastdot;           //of name
-  TBOX page_box;
+  std::string name = filename;   //truncated name
 
-  lastdot = strrchr(name.c_str(), '.');
+  const char* lastdot = strrchr(name.c_str(), '.');
   if (lastdot != nullptr)
     name[lastdot-name.c_str()] = '\0';
 
@@ -218,10 +216,7 @@ int orientation_and_script_detection(const char* filename,
     tess->mutable_textord()->find_components(tess->pix_binary(),
                                              &blocks, &port_blocks);
   } else {
-    page_box.set_left(0);
-    page_box.set_bottom(0);
-    page_box.set_right(width);
-    page_box.set_top(height);
+    TBOX page_box(0, 0, width, height);
     // Filter_blobs sets up the TO_BLOCKs the same as find_components does.
     tess->mutable_textord()->filter_blobs(page_box.topright(),
                                           &port_blocks, true);
diff --git a/src/ccmain/pagesegmain.cpp b/src/ccmain/pagesegmain.cpp
index 4304427a92..d3a32fabfb 100644
--- a/src/ccmain/pagesegmain.cpp
+++ b/src/ccmain/pagesegmain.cpp
@@ -109,7 +109,7 @@ int Tesseract::SegmentPage(const char* input_file, BLOCK_LIST* blocks,
   // If a UNLV zone file can be found, use that instead of segmentation.
   if (!PSM_COL_FIND_ENABLED(pageseg_mode) &&
       input_file != nullptr && input_file[0] != '\0') {
-    STRING name = input_file;
+    std::string name = input_file;
     const char* lastdot = strrchr(name.c_str(), '.');
     if (lastdot != nullptr)
       name[lastdot - name.c_str()] = '\0';
diff --git a/src/ccstruct/blread.cpp b/src/ccstruct/blread.cpp
index 507439a059..8854d91577 100644
--- a/src/ccstruct/blread.cpp
+++ b/src/ccstruct/blread.cpp
@@ -34,10 +34,10 @@ namespace tesseract {
  **********************************************************************/
 
 bool read_unlv_file(                    //print list of sides
-                     STRING name,        //basename of file
-                     int32_t xsize,        //image size
-                     int32_t ysize,        //image size
-                     BLOCK_LIST *blocks  //output list
+                     std::string& name, //basename of file
+                     int32_t xsize,     //image size
+                     int32_t ysize,     //image size
+                     BLOCK_LIST* blocks //output list
                     ) {
   FILE *pdfp;                    //file pointer
   BLOCK *block;                  //current block
diff --git a/src/ccstruct/blread.h b/src/ccstruct/blread.h
index 9a6daa484e..ea2e4264ba 100644
--- a/src/ccstruct/blread.h
+++ b/src/ccstruct/blread.h
@@ -2,7 +2,6 @@
  * File:        blread.h  (Formerly pdread.h)
  * Description: Friend function of BLOCK to read the uscan pd file.
  * Author:      Ray Smith
- * Created:     Mon Mar 18 14:39:00 GMT 1991
  *
  * (C) Copyright 1991, Hewlett-Packard Ltd.
  ** Licensed under the Apache License, Version 2.0 (the "License");
@@ -20,21 +19,21 @@
 #ifndef BLREAD_H
 #define BLREAD_H
 
-#include "strngs.h"     // for STRING
-
 #include <cstdint>      // for int32_t
+#include <string>       // for std::string
 
 namespace tesseract {
 
 class BLOCK_LIST;
 
 bool read_unlv_file(                    //print list of sides
-                     STRING name,        //basename of file
-                     int32_t xsize,        //image size
-                     int32_t ysize,        //image size
-                     BLOCK_LIST *blocks  //output list
+                     std::string& name, //basename of file
+                     int32_t xsize,     //image size
+                     int32_t ysize,     //image size
+                     BLOCK_LIST* blocks //output list
                     );
-void FullPageBlock(int width, int height, BLOCK_LIST *blocks);
+
+void FullPageBlock(int width, int height, BLOCK_LIST* blocks);
 
 } // namespace tesseract