FR2664512A1 - Method of manufacturing tinplate cans - Google Patents

Abstract

Patent "Method of manufacturing Tinplate cans" by which it becomes possible to manufacture cans of tinplated sheet metal by the agency of a micro-flow, with optimal qualitative characteristics and advantageous economy of equipment, this method consisting of the use in the production of cans of a relatively thinner and harder plate, with a thickness of 0.16 mm, and a DRB temper (dip-coating), at the lid and at the bottom of the can, proportioning by the micro-flow a substantial reduction of the hooks and from other measures of the crimping (renailing) folds, either of the lid and the bottom of the can, or of the hooks and ends of the shell (body) of the can, without decreasing its volume.

Description

r

  DESCRIPTIVE REPORT OF THE PATENT OF INVENTION "FABRI PROCESS

WHITE IRON BOXES CATION ".

  The purpose of this Patent for Invention is to

  sold for the manufacture of tinplate tin boxes -

  etasm and refers more particularly to the means of re-nailing the cover and the bottom of the tinplate boot,

  through which and thanks to a substantial r E-

  duction of the measurements of the hooks and other folds of reclou ment a significant and advantageous reduction is obtained in the cutting diameters of the material used in the confection

  of the lid and the bottom of the tin can, so -

  that, therefore, a significant reduction in the -

  top off the body of the tin boot, all without

  rer the volumetric value of the boots, this process, of which-

  results a substantial saving for the use of to-

  the, either in its quantitative aspect as by the use of a thinner and harder sheet, or, of 0.16 mm, with DR 8 quenching, the price of which is presented from 21.2 to 28.3% lower than

  that of sheet metal used more conventionally, that is

  that is to say, the sheet of 0.22 mm and 0.24 mm, with quenching T 4 ett * As is known to experts, boxes of the conventional type and currently used, sizes to be used for packaging of other products,

  especially for food products called

  sanitary boxes, are normally obtained using

  both a tinned sheet of thickness 0.22 to 0.24 mm with

  quenching T 3, at the lid and at the bottom; these characteristics -

  which would also allow the use of this sheet in one -

  micro-gluing, however, without the advantages of a gran saving of 21.2 to 28.3%, which are obtained and resulting through the use of a sheet of thickness O, 16 mm, with, quenching DR 8, in the form of the new process, tttt * tttt

  The new boot manufacturing process of -

  tinplate in question comes to proportion an economy -

  J oe i m q substantial, either by the appreciable reduction in diameters

  cutting the cover and the bottom of the botts, therefore -

  quence of reducing hook and other measures

  reclouement folds, as well as by reducing the height

  proportional to the body of the boot, without affecting the volumetric value, this saving which becomes more signi

  ficative thanks to the use of a sheet of minor thickness -

  and of a major hardness, that is to say, of thickness of -

  0.16 mm with DR 8 quench, in relation to the sheet used

  optionally, either 0.22 to 0.24 mm thick and -

  quenching T-4, for the cover and the bottom ttts * s * stt * eeti This new process is possible in boots with

  the body is electrically welded or repelled, -

  that is to say, those which do not have two thicknesses-

  in the lengthening of his body, as it is in the -

  case of boxes whose elongation is obtained by stapling-

  and soda with tin or lead, or thermoplastic, this -

  condition not being viable in this new procedure

  The new process for making boxes in -

  question, is shown on the attached drawings, -

  which show, for comparison purposes, either

  discs for cutting the cover and the bottom, i.e. the -

  re-nailed ties, like the body of the boot, with its tail-

  the respective ones, namely: tttetttettttte Sttttttttett Sheet 1

  FIGURE 1 a cut-out view, showing a re-nailing -

  obtained through the convention process -

  nel, that is to say, through the use of a to

  the thickness of 0.22, with quenching T 4, of which -

  the reclouement measures arising in relation to

  majorly; ? ettttttttttte Stte ttttt FIGURE 2 sectional view showing a re-nailing obtained

  through the new process, that is to say, -

J r.

  with the use of a sheet of minor thickness, -

  either Q, 16 mm, and harder, that is to say, with-

  hardening D 28, whose re-nailing measures are

  present significantly reduced compared -

  the conventional process; tttistettt * tttt + e

FIGURE 3 -

FIGURE 4 -

FIGURE 5 -

FIGURE 6 -

FIGURE 7 -

FIGURE 8 -

  side view of a ready or completed box, -

  whose re-nailing was obtained by the process

  conventional, whose body height is

  noticeably major offerings related to the bowl

  te obtained by the new reclouging process -

  is lying; t ***** t * t * + ** tts * ttt *** t * s * ttstmss ***

  side view of a prate or completed box, -

  whose re-nailing was obtained by the new

  process, the height of the body of which is

  appreciably minor, without reduction of its value

  their volumetrics; *** tttttttttttttt ** ttt view from the top of a disc intended for training

  of the lid and the bottom of the box, cut -

  with usual diamatra and used in proce-

  Conventional reclouation dice; tttt? * ttt view from the top of a disc intended for the formation of the cover and the bottom of the boot, cut with

  the appreciably minor diameter, used in-

  microreclosure and in accordance with the object-

  the new process; tttett * t *** tte **** t

  view from the top of the lid and the bottom of the bowl-

  te, already prints and obeying the measures-

  used in conventional re-nailing processes; tt * tt? **** t * tt *** ett ** t * tttt * f *

  top view of the lid and bottom of the bowl

  te, already stamping and obeying the measures-

  used in the new reclouging process -

  mant; ttt Sttt ttttttttttttttttt * ttttt * tt

FIGURE 9 -

FIGURE 10 -

FIGURE 11 -

FIGURE 12 -

FIGURE 13 -

FIGURE 14 -

  cutaway view of the cover and bottom of the -

  boot, already stamped, showing the hooks of

  re-nailing with the measures used in -

  conventional re-nailing procedures; -

  cutaway view of the cover and bottom of the -

  box already stamped, showing the sensitive reduction

  re-hooking measures, -

  in the form of the new re-nailing process;

  side view of a cylindrical boot body, -

  with height measurement intended for proce -

  Conventional reclouation dice; mitse tt

  side view of a cylindrical body of the bot-

  te, with the height significantly reduced, des-

  aim at the new micro-retaining process; -

  side view of a body of the box, already equipped

  re-nailing flanges and with measurements -

  normally used in re-

  conventional nailing; ttttesttttsttet side view of a box body, including the bri

  already practiced, present themselves with their-

  reduced measurements, in the form of the new microletting process 1 head * t ?? ttt 2 ttt

  By describing the new process in more detail-

  ds boot making and according to it has been shown -

  by the drawings attached to this descriptive report, -

  said process aims to proportion to the boxes manufactured

  quees en ta 8 l etamée, intended for the most diverse finali -

  your use, a microeclouement, with an economy-

  substantial material, through use in the con-

  fection of the boxes of a tale of minor thickness, it is

  dirse of O 16 mm thick and relatively harder, -

  with DR 8 quenching, as a substitute for the tale conventionally used in known re-nailing processes, J am

  in which normally a 0.22 a - tile is used

  D, 24 mm, relatively softer, that is to say, with tram

  pa T 4, without reducing the volumetric value of the boxes thus

  if obtained ttsteeet * e * tsttttttstttteeteetet This new process for making boots, for

  puts an advantageous saving of material, which is propor -

  due to the appreciable reduction in the diameters of the dis

  which form the lid and the bottom of the bowl

  formally it is shown in Figures 5 and 6, as well as a -

  reduction of measurements of hooks and other folds of re-

  nailing, as shown in Figures 1 -

  and 2, as in Figures 9 and 10, in addition to a reduction

  the height of the cylindrical body of the boot, compliant -

  ment it is shown in Figures 3 and 4 and Figures of i 11

  to 14 of the attached drawings, these reductions obtained without -

  reduce the volumetric value of boots thus reclouées-

  through the new micro-letting process and attttte So that we have a perfect evaluation of the real economic benefits resulting from this new process, it

  it should be noted that in addition to this substantial economy -

  of material, permitted by the use of a sheet doubly re

  pick, that is to say, the DR 8 and the thickness O, 16 mm, for -

  the making of the covers and bottoms of the boot, -

  the use of said minor price sheet does not become possible for conventional re-nailings, given

  than the high hardness of the material and its small thickness, -

  the folds of the hooks would have very large deformations which would be transmitted to a general deformation

  re-lockout, which more than results in bad -

  visual aspect for the box, said box would be technically condemned due to not proportioning a fencing

  r perfect and, therefore, a hermetic seal -

  ideal, which represent the fundamental conditions for good re-nailing and quality of these packaging t, sttttats) t, R E U E N D I C A T I O N S, t ,,, q,

  PROCESS FOR THE MANUFACTURE OF TIN BOXES by which -

  tinned tin boxes go on to have their training -

  made by microreclosure, characterized by being used in the making of the box, a relative size

  thinner and harder, with the thickness of 0.16 mm, and -

  hardening DR 8, at the lid and at the bottom of the box, proportion

  noticeably reduced hooks and other measures

  res of the folds of the reclouement, either on the cover or at the bottom of the box, as well as the hooks and the ends of the body of the box, without altering its volumetric value,